11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds BlueZ - Bluetooth protocol stack for Linux 31da177e4SLinus Torvalds Copyright (C) 2000-2001 Qualcomm Incorporated 4590051deSGustavo F. Padovan Copyright (C) 2011 ProFUSION Embedded Systems 51da177e4SLinus Torvalds 61da177e4SLinus Torvalds Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 71da177e4SLinus Torvalds 81da177e4SLinus Torvalds This program is free software; you can redistribute it and/or modify 91da177e4SLinus Torvalds it under the terms of the GNU General Public License version 2 as 101da177e4SLinus Torvalds published by the Free Software Foundation; 111da177e4SLinus Torvalds 121da177e4SLinus Torvalds THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 131da177e4SLinus Torvalds OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 141da177e4SLinus Torvalds FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 151da177e4SLinus Torvalds IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 161da177e4SLinus Torvalds CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 171da177e4SLinus Torvalds WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 181da177e4SLinus Torvalds ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 191da177e4SLinus Torvalds OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 221da177e4SLinus Torvalds COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 231da177e4SLinus Torvalds SOFTWARE IS DISCLAIMED. 241da177e4SLinus Torvalds */ 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds /* Bluetooth HCI core. */ 271da177e4SLinus Torvalds 288c520a59SGustavo Padovan #include <linux/export.h> 293df92b31SSasha Levin #include <linux/idr.h> 30611b30f7SMarcel Holtmann #include <linux/rfkill.h> 31baf27f6eSMarcel Holtmann #include <linux/debugfs.h> 3299780a7bSJohan Hedberg #include <linux/crypto.h> 3347219839SMarcel Holtmann #include <asm/unaligned.h> 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds #include <net/bluetooth/bluetooth.h> 361da177e4SLinus Torvalds #include <net/bluetooth/hci_core.h> 374bc58f51SJohan Hedberg #include <net/bluetooth/l2cap.h> 38af58925cSMarcel Holtmann #include <net/bluetooth/mgmt.h> 391da177e4SLinus Torvalds 40970c4e46SJohan Hedberg #include "smp.h" 41970c4e46SJohan Hedberg 42b78752ccSMarcel Holtmann static void hci_rx_work(struct work_struct *work); 43c347b765SGustavo F. Padovan static void hci_cmd_work(struct work_struct *work); 443eff45eaSGustavo F. Padovan static void hci_tx_work(struct work_struct *work); 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds /* HCI device list */ 471da177e4SLinus Torvalds LIST_HEAD(hci_dev_list); 481da177e4SLinus Torvalds DEFINE_RWLOCK(hci_dev_list_lock); 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds /* HCI callback list */ 511da177e4SLinus Torvalds LIST_HEAD(hci_cb_list); 521da177e4SLinus Torvalds DEFINE_RWLOCK(hci_cb_list_lock); 531da177e4SLinus Torvalds 543df92b31SSasha Levin /* HCI ID Numbering */ 553df92b31SSasha Levin static DEFINE_IDA(hci_index_ida); 563df92b31SSasha Levin 57899de765SMarcel Holtmann /* ----- HCI requests ----- */ 58899de765SMarcel Holtmann 59899de765SMarcel Holtmann #define HCI_REQ_DONE 0 60899de765SMarcel Holtmann #define HCI_REQ_PEND 1 61899de765SMarcel Holtmann #define HCI_REQ_CANCELED 2 62899de765SMarcel Holtmann 63899de765SMarcel Holtmann #define hci_req_lock(d) mutex_lock(&d->req_lock) 64899de765SMarcel Holtmann #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 65899de765SMarcel Holtmann 661da177e4SLinus Torvalds /* ---- HCI notifications ---- */ 671da177e4SLinus Torvalds 686516455dSMarcel Holtmann static void hci_notify(struct hci_dev *hdev, int event) 691da177e4SLinus Torvalds { 70040030efSMarcel Holtmann hci_sock_dev_event(hdev, event); 711da177e4SLinus Torvalds } 721da177e4SLinus Torvalds 73baf27f6eSMarcel Holtmann /* ---- HCI debugfs entries ---- */ 74baf27f6eSMarcel Holtmann 754b4148e9SMarcel Holtmann static ssize_t dut_mode_read(struct file *file, char __user *user_buf, 764b4148e9SMarcel Holtmann size_t count, loff_t *ppos) 774b4148e9SMarcel Holtmann { 784b4148e9SMarcel Holtmann struct hci_dev *hdev = file->private_data; 794b4148e9SMarcel Holtmann char buf[3]; 804b4148e9SMarcel Holtmann 81111902f7SMarcel Holtmann buf[0] = test_bit(HCI_DUT_MODE, &hdev->dbg_flags) ? 'Y': 'N'; 824b4148e9SMarcel Holtmann buf[1] = '\n'; 834b4148e9SMarcel Holtmann buf[2] = '\0'; 844b4148e9SMarcel Holtmann return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 854b4148e9SMarcel Holtmann } 864b4148e9SMarcel Holtmann 874b4148e9SMarcel Holtmann static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, 884b4148e9SMarcel Holtmann size_t count, loff_t *ppos) 894b4148e9SMarcel Holtmann { 904b4148e9SMarcel Holtmann struct hci_dev *hdev = file->private_data; 914b4148e9SMarcel Holtmann struct sk_buff *skb; 924b4148e9SMarcel Holtmann char buf[32]; 934b4148e9SMarcel Holtmann size_t buf_size = min(count, (sizeof(buf)-1)); 944b4148e9SMarcel Holtmann bool enable; 954b4148e9SMarcel Holtmann int err; 964b4148e9SMarcel Holtmann 974b4148e9SMarcel Holtmann if (!test_bit(HCI_UP, &hdev->flags)) 984b4148e9SMarcel Holtmann return -ENETDOWN; 994b4148e9SMarcel Holtmann 1004b4148e9SMarcel Holtmann if (copy_from_user(buf, user_buf, buf_size)) 1014b4148e9SMarcel Holtmann return -EFAULT; 1024b4148e9SMarcel Holtmann 1034b4148e9SMarcel Holtmann buf[buf_size] = '\0'; 1044b4148e9SMarcel Holtmann if (strtobool(buf, &enable)) 1054b4148e9SMarcel Holtmann return -EINVAL; 1064b4148e9SMarcel Holtmann 107111902f7SMarcel Holtmann if (enable == test_bit(HCI_DUT_MODE, &hdev->dbg_flags)) 1084b4148e9SMarcel Holtmann return -EALREADY; 1094b4148e9SMarcel Holtmann 1104b4148e9SMarcel Holtmann hci_req_lock(hdev); 1114b4148e9SMarcel Holtmann if (enable) 1124b4148e9SMarcel Holtmann skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL, 1134b4148e9SMarcel Holtmann HCI_CMD_TIMEOUT); 1144b4148e9SMarcel Holtmann else 1154b4148e9SMarcel Holtmann skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, 1164b4148e9SMarcel Holtmann HCI_CMD_TIMEOUT); 1174b4148e9SMarcel Holtmann hci_req_unlock(hdev); 1184b4148e9SMarcel Holtmann 1194b4148e9SMarcel Holtmann if (IS_ERR(skb)) 1204b4148e9SMarcel Holtmann return PTR_ERR(skb); 1214b4148e9SMarcel Holtmann 1224b4148e9SMarcel Holtmann err = -bt_to_errno(skb->data[0]); 1234b4148e9SMarcel Holtmann kfree_skb(skb); 1244b4148e9SMarcel Holtmann 1254b4148e9SMarcel Holtmann if (err < 0) 1264b4148e9SMarcel Holtmann return err; 1274b4148e9SMarcel Holtmann 128111902f7SMarcel Holtmann change_bit(HCI_DUT_MODE, &hdev->dbg_flags); 1294b4148e9SMarcel Holtmann 1304b4148e9SMarcel Holtmann return count; 1314b4148e9SMarcel Holtmann } 1324b4148e9SMarcel Holtmann 1334b4148e9SMarcel Holtmann static const struct file_operations dut_mode_fops = { 1344b4148e9SMarcel Holtmann .open = simple_open, 1354b4148e9SMarcel Holtmann .read = dut_mode_read, 1364b4148e9SMarcel Holtmann .write = dut_mode_write, 1374b4148e9SMarcel Holtmann .llseek = default_llseek, 1384b4148e9SMarcel Holtmann }; 1394b4148e9SMarcel Holtmann 140dfb826a8SMarcel Holtmann static int features_show(struct seq_file *f, void *ptr) 141dfb826a8SMarcel Holtmann { 142dfb826a8SMarcel Holtmann struct hci_dev *hdev = f->private; 143dfb826a8SMarcel Holtmann u8 p; 144dfb826a8SMarcel Holtmann 145dfb826a8SMarcel Holtmann hci_dev_lock(hdev); 146dfb826a8SMarcel Holtmann for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) { 147cfbb2b5bSMarcel Holtmann seq_printf(f, "%2u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x " 148dfb826a8SMarcel Holtmann "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", p, 149dfb826a8SMarcel Holtmann hdev->features[p][0], hdev->features[p][1], 150dfb826a8SMarcel Holtmann hdev->features[p][2], hdev->features[p][3], 151dfb826a8SMarcel Holtmann hdev->features[p][4], hdev->features[p][5], 152dfb826a8SMarcel Holtmann hdev->features[p][6], hdev->features[p][7]); 153dfb826a8SMarcel Holtmann } 154cfbb2b5bSMarcel Holtmann if (lmp_le_capable(hdev)) 155cfbb2b5bSMarcel Holtmann seq_printf(f, "LE: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x " 156cfbb2b5bSMarcel Holtmann "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", 157cfbb2b5bSMarcel Holtmann hdev->le_features[0], hdev->le_features[1], 158cfbb2b5bSMarcel Holtmann hdev->le_features[2], hdev->le_features[3], 159cfbb2b5bSMarcel Holtmann hdev->le_features[4], hdev->le_features[5], 160cfbb2b5bSMarcel Holtmann hdev->le_features[6], hdev->le_features[7]); 161dfb826a8SMarcel Holtmann hci_dev_unlock(hdev); 162dfb826a8SMarcel Holtmann 163dfb826a8SMarcel Holtmann return 0; 164dfb826a8SMarcel Holtmann } 165dfb826a8SMarcel Holtmann 166dfb826a8SMarcel Holtmann static int features_open(struct inode *inode, struct file *file) 167dfb826a8SMarcel Holtmann { 168dfb826a8SMarcel Holtmann return single_open(file, features_show, inode->i_private); 169dfb826a8SMarcel Holtmann } 170dfb826a8SMarcel Holtmann 171dfb826a8SMarcel Holtmann static const struct file_operations features_fops = { 172dfb826a8SMarcel Holtmann .open = features_open, 173dfb826a8SMarcel Holtmann .read = seq_read, 174dfb826a8SMarcel Holtmann .llseek = seq_lseek, 175dfb826a8SMarcel Holtmann .release = single_release, 176dfb826a8SMarcel Holtmann }; 177dfb826a8SMarcel Holtmann 17870afe0b8SMarcel Holtmann static int blacklist_show(struct seq_file *f, void *p) 17970afe0b8SMarcel Holtmann { 18070afe0b8SMarcel Holtmann struct hci_dev *hdev = f->private; 18170afe0b8SMarcel Holtmann struct bdaddr_list *b; 18270afe0b8SMarcel Holtmann 18370afe0b8SMarcel Holtmann hci_dev_lock(hdev); 18470afe0b8SMarcel Holtmann list_for_each_entry(b, &hdev->blacklist, list) 185b25f0785SMarcel Holtmann seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); 18670afe0b8SMarcel Holtmann hci_dev_unlock(hdev); 18770afe0b8SMarcel Holtmann 18870afe0b8SMarcel Holtmann return 0; 18970afe0b8SMarcel Holtmann } 19070afe0b8SMarcel Holtmann 19170afe0b8SMarcel Holtmann static int blacklist_open(struct inode *inode, struct file *file) 19270afe0b8SMarcel Holtmann { 19370afe0b8SMarcel Holtmann return single_open(file, blacklist_show, inode->i_private); 19470afe0b8SMarcel Holtmann } 19570afe0b8SMarcel Holtmann 19670afe0b8SMarcel Holtmann static const struct file_operations blacklist_fops = { 19770afe0b8SMarcel Holtmann .open = blacklist_open, 19870afe0b8SMarcel Holtmann .read = seq_read, 19970afe0b8SMarcel Holtmann .llseek = seq_lseek, 20070afe0b8SMarcel Holtmann .release = single_release, 20170afe0b8SMarcel Holtmann }; 20270afe0b8SMarcel Holtmann 2036659358eSJohan Hedberg static int whitelist_show(struct seq_file *f, void *p) 2046659358eSJohan Hedberg { 2056659358eSJohan Hedberg struct hci_dev *hdev = f->private; 2066659358eSJohan Hedberg struct bdaddr_list *b; 2076659358eSJohan Hedberg 2086659358eSJohan Hedberg hci_dev_lock(hdev); 2096659358eSJohan Hedberg list_for_each_entry(b, &hdev->whitelist, list) 2106659358eSJohan Hedberg seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); 2116659358eSJohan Hedberg hci_dev_unlock(hdev); 2126659358eSJohan Hedberg 2136659358eSJohan Hedberg return 0; 2146659358eSJohan Hedberg } 2156659358eSJohan Hedberg 2166659358eSJohan Hedberg static int whitelist_open(struct inode *inode, struct file *file) 2176659358eSJohan Hedberg { 2186659358eSJohan Hedberg return single_open(file, whitelist_show, inode->i_private); 2196659358eSJohan Hedberg } 2206659358eSJohan Hedberg 2216659358eSJohan Hedberg static const struct file_operations whitelist_fops = { 2226659358eSJohan Hedberg .open = whitelist_open, 2236659358eSJohan Hedberg .read = seq_read, 2246659358eSJohan Hedberg .llseek = seq_lseek, 2256659358eSJohan Hedberg .release = single_release, 2266659358eSJohan Hedberg }; 2276659358eSJohan Hedberg 22847219839SMarcel Holtmann static int uuids_show(struct seq_file *f, void *p) 22947219839SMarcel Holtmann { 23047219839SMarcel Holtmann struct hci_dev *hdev = f->private; 23147219839SMarcel Holtmann struct bt_uuid *uuid; 23247219839SMarcel Holtmann 23347219839SMarcel Holtmann hci_dev_lock(hdev); 23447219839SMarcel Holtmann list_for_each_entry(uuid, &hdev->uuids, list) { 23558f01aa9SMarcel Holtmann u8 i, val[16]; 23647219839SMarcel Holtmann 23758f01aa9SMarcel Holtmann /* The Bluetooth UUID values are stored in big endian, 23858f01aa9SMarcel Holtmann * but with reversed byte order. So convert them into 23958f01aa9SMarcel Holtmann * the right order for the %pUb modifier. 24058f01aa9SMarcel Holtmann */ 24158f01aa9SMarcel Holtmann for (i = 0; i < 16; i++) 24258f01aa9SMarcel Holtmann val[i] = uuid->uuid[15 - i]; 24347219839SMarcel Holtmann 24458f01aa9SMarcel Holtmann seq_printf(f, "%pUb\n", val); 24547219839SMarcel Holtmann } 24647219839SMarcel Holtmann hci_dev_unlock(hdev); 24747219839SMarcel Holtmann 24847219839SMarcel Holtmann return 0; 24947219839SMarcel Holtmann } 25047219839SMarcel Holtmann 25147219839SMarcel Holtmann static int uuids_open(struct inode *inode, struct file *file) 25247219839SMarcel Holtmann { 25347219839SMarcel Holtmann return single_open(file, uuids_show, inode->i_private); 25447219839SMarcel Holtmann } 25547219839SMarcel Holtmann 25647219839SMarcel Holtmann static const struct file_operations uuids_fops = { 25747219839SMarcel Holtmann .open = uuids_open, 25847219839SMarcel Holtmann .read = seq_read, 25947219839SMarcel Holtmann .llseek = seq_lseek, 26047219839SMarcel Holtmann .release = single_release, 26147219839SMarcel Holtmann }; 26247219839SMarcel Holtmann 263baf27f6eSMarcel Holtmann static int inquiry_cache_show(struct seq_file *f, void *p) 264baf27f6eSMarcel Holtmann { 265baf27f6eSMarcel Holtmann struct hci_dev *hdev = f->private; 266baf27f6eSMarcel Holtmann struct discovery_state *cache = &hdev->discovery; 267baf27f6eSMarcel Holtmann struct inquiry_entry *e; 268baf27f6eSMarcel Holtmann 269baf27f6eSMarcel Holtmann hci_dev_lock(hdev); 270baf27f6eSMarcel Holtmann 271baf27f6eSMarcel Holtmann list_for_each_entry(e, &cache->all, all) { 272baf27f6eSMarcel Holtmann struct inquiry_data *data = &e->data; 273baf27f6eSMarcel Holtmann seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", 274baf27f6eSMarcel Holtmann &data->bdaddr, 275baf27f6eSMarcel Holtmann data->pscan_rep_mode, data->pscan_period_mode, 276baf27f6eSMarcel Holtmann data->pscan_mode, data->dev_class[2], 277baf27f6eSMarcel Holtmann data->dev_class[1], data->dev_class[0], 278baf27f6eSMarcel Holtmann __le16_to_cpu(data->clock_offset), 279baf27f6eSMarcel Holtmann data->rssi, data->ssp_mode, e->timestamp); 280baf27f6eSMarcel Holtmann } 281baf27f6eSMarcel Holtmann 282baf27f6eSMarcel Holtmann hci_dev_unlock(hdev); 283baf27f6eSMarcel Holtmann 284baf27f6eSMarcel Holtmann return 0; 285baf27f6eSMarcel Holtmann } 286baf27f6eSMarcel Holtmann 287baf27f6eSMarcel Holtmann static int inquiry_cache_open(struct inode *inode, struct file *file) 288baf27f6eSMarcel Holtmann { 289baf27f6eSMarcel Holtmann return single_open(file, inquiry_cache_show, inode->i_private); 290baf27f6eSMarcel Holtmann } 291baf27f6eSMarcel Holtmann 292baf27f6eSMarcel Holtmann static const struct file_operations inquiry_cache_fops = { 293baf27f6eSMarcel Holtmann .open = inquiry_cache_open, 294baf27f6eSMarcel Holtmann .read = seq_read, 295baf27f6eSMarcel Holtmann .llseek = seq_lseek, 296baf27f6eSMarcel Holtmann .release = single_release, 297baf27f6eSMarcel Holtmann }; 298baf27f6eSMarcel Holtmann 29902d08d15SMarcel Holtmann static int link_keys_show(struct seq_file *f, void *ptr) 30002d08d15SMarcel Holtmann { 30102d08d15SMarcel Holtmann struct hci_dev *hdev = f->private; 30202d08d15SMarcel Holtmann struct list_head *p, *n; 30302d08d15SMarcel Holtmann 30402d08d15SMarcel Holtmann hci_dev_lock(hdev); 30502d08d15SMarcel Holtmann list_for_each_safe(p, n, &hdev->link_keys) { 30602d08d15SMarcel Holtmann struct link_key *key = list_entry(p, struct link_key, list); 30702d08d15SMarcel Holtmann seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type, 30802d08d15SMarcel Holtmann HCI_LINK_KEY_SIZE, key->val, key->pin_len); 30902d08d15SMarcel Holtmann } 31002d08d15SMarcel Holtmann hci_dev_unlock(hdev); 31102d08d15SMarcel Holtmann 31202d08d15SMarcel Holtmann return 0; 31302d08d15SMarcel Holtmann } 31402d08d15SMarcel Holtmann 31502d08d15SMarcel Holtmann static int link_keys_open(struct inode *inode, struct file *file) 31602d08d15SMarcel Holtmann { 31702d08d15SMarcel Holtmann return single_open(file, link_keys_show, inode->i_private); 31802d08d15SMarcel Holtmann } 31902d08d15SMarcel Holtmann 32002d08d15SMarcel Holtmann static const struct file_operations link_keys_fops = { 32102d08d15SMarcel Holtmann .open = link_keys_open, 32202d08d15SMarcel Holtmann .read = seq_read, 32302d08d15SMarcel Holtmann .llseek = seq_lseek, 32402d08d15SMarcel Holtmann .release = single_release, 32502d08d15SMarcel Holtmann }; 32602d08d15SMarcel Holtmann 327babdbb3cSMarcel Holtmann static int dev_class_show(struct seq_file *f, void *ptr) 328babdbb3cSMarcel Holtmann { 329babdbb3cSMarcel Holtmann struct hci_dev *hdev = f->private; 330babdbb3cSMarcel Holtmann 331babdbb3cSMarcel Holtmann hci_dev_lock(hdev); 332babdbb3cSMarcel Holtmann seq_printf(f, "0x%.2x%.2x%.2x\n", hdev->dev_class[2], 333babdbb3cSMarcel Holtmann hdev->dev_class[1], hdev->dev_class[0]); 334babdbb3cSMarcel Holtmann hci_dev_unlock(hdev); 335babdbb3cSMarcel Holtmann 336babdbb3cSMarcel Holtmann return 0; 337babdbb3cSMarcel Holtmann } 338babdbb3cSMarcel Holtmann 339babdbb3cSMarcel Holtmann static int dev_class_open(struct inode *inode, struct file *file) 340babdbb3cSMarcel Holtmann { 341babdbb3cSMarcel Holtmann return single_open(file, dev_class_show, inode->i_private); 342babdbb3cSMarcel Holtmann } 343babdbb3cSMarcel Holtmann 344babdbb3cSMarcel Holtmann static const struct file_operations dev_class_fops = { 345babdbb3cSMarcel Holtmann .open = dev_class_open, 346babdbb3cSMarcel Holtmann .read = seq_read, 347babdbb3cSMarcel Holtmann .llseek = seq_lseek, 348babdbb3cSMarcel Holtmann .release = single_release, 349babdbb3cSMarcel Holtmann }; 350babdbb3cSMarcel Holtmann 351041000b9SMarcel Holtmann static int voice_setting_get(void *data, u64 *val) 352041000b9SMarcel Holtmann { 353041000b9SMarcel Holtmann struct hci_dev *hdev = data; 354041000b9SMarcel Holtmann 355041000b9SMarcel Holtmann hci_dev_lock(hdev); 356041000b9SMarcel Holtmann *val = hdev->voice_setting; 357041000b9SMarcel Holtmann hci_dev_unlock(hdev); 358041000b9SMarcel Holtmann 359041000b9SMarcel Holtmann return 0; 360041000b9SMarcel Holtmann } 361041000b9SMarcel Holtmann 362041000b9SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get, 363041000b9SMarcel Holtmann NULL, "0x%4.4llx\n"); 364041000b9SMarcel Holtmann 365ebd1e33bSMarcel Holtmann static int auto_accept_delay_set(void *data, u64 val) 366ebd1e33bSMarcel Holtmann { 367ebd1e33bSMarcel Holtmann struct hci_dev *hdev = data; 368ebd1e33bSMarcel Holtmann 369ebd1e33bSMarcel Holtmann hci_dev_lock(hdev); 370ebd1e33bSMarcel Holtmann hdev->auto_accept_delay = val; 371ebd1e33bSMarcel Holtmann hci_dev_unlock(hdev); 372ebd1e33bSMarcel Holtmann 373ebd1e33bSMarcel Holtmann return 0; 374ebd1e33bSMarcel Holtmann } 375ebd1e33bSMarcel Holtmann 376ebd1e33bSMarcel Holtmann static int auto_accept_delay_get(void *data, u64 *val) 377ebd1e33bSMarcel Holtmann { 378ebd1e33bSMarcel Holtmann struct hci_dev *hdev = data; 379ebd1e33bSMarcel Holtmann 380ebd1e33bSMarcel Holtmann hci_dev_lock(hdev); 381ebd1e33bSMarcel Holtmann *val = hdev->auto_accept_delay; 382ebd1e33bSMarcel Holtmann hci_dev_unlock(hdev); 383ebd1e33bSMarcel Holtmann 384ebd1e33bSMarcel Holtmann return 0; 385ebd1e33bSMarcel Holtmann } 386ebd1e33bSMarcel Holtmann 387ebd1e33bSMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, 388ebd1e33bSMarcel Holtmann auto_accept_delay_set, "%llu\n"); 389ebd1e33bSMarcel Holtmann 3905afeac14SMarcel Holtmann static ssize_t force_sc_support_read(struct file *file, char __user *user_buf, 3915afeac14SMarcel Holtmann size_t count, loff_t *ppos) 3925afeac14SMarcel Holtmann { 3935afeac14SMarcel Holtmann struct hci_dev *hdev = file->private_data; 3945afeac14SMarcel Holtmann char buf[3]; 3955afeac14SMarcel Holtmann 396111902f7SMarcel Holtmann buf[0] = test_bit(HCI_FORCE_SC, &hdev->dbg_flags) ? 'Y': 'N'; 3975afeac14SMarcel Holtmann buf[1] = '\n'; 3985afeac14SMarcel Holtmann buf[2] = '\0'; 3995afeac14SMarcel Holtmann return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 4005afeac14SMarcel Holtmann } 4015afeac14SMarcel Holtmann 4025afeac14SMarcel Holtmann static ssize_t force_sc_support_write(struct file *file, 4035afeac14SMarcel Holtmann const char __user *user_buf, 4045afeac14SMarcel Holtmann size_t count, loff_t *ppos) 4055afeac14SMarcel Holtmann { 4065afeac14SMarcel Holtmann struct hci_dev *hdev = file->private_data; 4075afeac14SMarcel Holtmann char buf[32]; 4085afeac14SMarcel Holtmann size_t buf_size = min(count, (sizeof(buf)-1)); 4095afeac14SMarcel Holtmann bool enable; 4105afeac14SMarcel Holtmann 4115afeac14SMarcel Holtmann if (test_bit(HCI_UP, &hdev->flags)) 4125afeac14SMarcel Holtmann return -EBUSY; 4135afeac14SMarcel Holtmann 4145afeac14SMarcel Holtmann if (copy_from_user(buf, user_buf, buf_size)) 4155afeac14SMarcel Holtmann return -EFAULT; 4165afeac14SMarcel Holtmann 4175afeac14SMarcel Holtmann buf[buf_size] = '\0'; 4185afeac14SMarcel Holtmann if (strtobool(buf, &enable)) 4195afeac14SMarcel Holtmann return -EINVAL; 4205afeac14SMarcel Holtmann 421111902f7SMarcel Holtmann if (enable == test_bit(HCI_FORCE_SC, &hdev->dbg_flags)) 4225afeac14SMarcel Holtmann return -EALREADY; 4235afeac14SMarcel Holtmann 424111902f7SMarcel Holtmann change_bit(HCI_FORCE_SC, &hdev->dbg_flags); 4255afeac14SMarcel Holtmann 4265afeac14SMarcel Holtmann return count; 4275afeac14SMarcel Holtmann } 4285afeac14SMarcel Holtmann 4295afeac14SMarcel Holtmann static const struct file_operations force_sc_support_fops = { 4305afeac14SMarcel Holtmann .open = simple_open, 4315afeac14SMarcel Holtmann .read = force_sc_support_read, 4325afeac14SMarcel Holtmann .write = force_sc_support_write, 4335afeac14SMarcel Holtmann .llseek = default_llseek, 4345afeac14SMarcel Holtmann }; 4355afeac14SMarcel Holtmann 436134c2a89SMarcel Holtmann static ssize_t sc_only_mode_read(struct file *file, char __user *user_buf, 437134c2a89SMarcel Holtmann size_t count, loff_t *ppos) 438134c2a89SMarcel Holtmann { 439134c2a89SMarcel Holtmann struct hci_dev *hdev = file->private_data; 440134c2a89SMarcel Holtmann char buf[3]; 441134c2a89SMarcel Holtmann 442134c2a89SMarcel Holtmann buf[0] = test_bit(HCI_SC_ONLY, &hdev->dev_flags) ? 'Y': 'N'; 443134c2a89SMarcel Holtmann buf[1] = '\n'; 444134c2a89SMarcel Holtmann buf[2] = '\0'; 445134c2a89SMarcel Holtmann return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 446134c2a89SMarcel Holtmann } 447134c2a89SMarcel Holtmann 448134c2a89SMarcel Holtmann static const struct file_operations sc_only_mode_fops = { 449134c2a89SMarcel Holtmann .open = simple_open, 450134c2a89SMarcel Holtmann .read = sc_only_mode_read, 451134c2a89SMarcel Holtmann .llseek = default_llseek, 452134c2a89SMarcel Holtmann }; 453134c2a89SMarcel Holtmann 4542bfa3531SMarcel Holtmann static int idle_timeout_set(void *data, u64 val) 4552bfa3531SMarcel Holtmann { 4562bfa3531SMarcel Holtmann struct hci_dev *hdev = data; 4572bfa3531SMarcel Holtmann 4582bfa3531SMarcel Holtmann if (val != 0 && (val < 500 || val > 3600000)) 4592bfa3531SMarcel Holtmann return -EINVAL; 4602bfa3531SMarcel Holtmann 4612bfa3531SMarcel Holtmann hci_dev_lock(hdev); 4622bfa3531SMarcel Holtmann hdev->idle_timeout = val; 4632bfa3531SMarcel Holtmann hci_dev_unlock(hdev); 4642bfa3531SMarcel Holtmann 4652bfa3531SMarcel Holtmann return 0; 4662bfa3531SMarcel Holtmann } 4672bfa3531SMarcel Holtmann 4682bfa3531SMarcel Holtmann static int idle_timeout_get(void *data, u64 *val) 4692bfa3531SMarcel Holtmann { 4702bfa3531SMarcel Holtmann struct hci_dev *hdev = data; 4712bfa3531SMarcel Holtmann 4722bfa3531SMarcel Holtmann hci_dev_lock(hdev); 4732bfa3531SMarcel Holtmann *val = hdev->idle_timeout; 4742bfa3531SMarcel Holtmann hci_dev_unlock(hdev); 4752bfa3531SMarcel Holtmann 4762bfa3531SMarcel Holtmann return 0; 4772bfa3531SMarcel Holtmann } 4782bfa3531SMarcel Holtmann 4792bfa3531SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get, 4802bfa3531SMarcel Holtmann idle_timeout_set, "%llu\n"); 4812bfa3531SMarcel Holtmann 482c982b2eaSJohan Hedberg static int rpa_timeout_set(void *data, u64 val) 483c982b2eaSJohan Hedberg { 484c982b2eaSJohan Hedberg struct hci_dev *hdev = data; 485c982b2eaSJohan Hedberg 486c982b2eaSJohan Hedberg /* Require the RPA timeout to be at least 30 seconds and at most 487c982b2eaSJohan Hedberg * 24 hours. 488c982b2eaSJohan Hedberg */ 489c982b2eaSJohan Hedberg if (val < 30 || val > (60 * 60 * 24)) 490c982b2eaSJohan Hedberg return -EINVAL; 491c982b2eaSJohan Hedberg 492c982b2eaSJohan Hedberg hci_dev_lock(hdev); 493c982b2eaSJohan Hedberg hdev->rpa_timeout = val; 494c982b2eaSJohan Hedberg hci_dev_unlock(hdev); 495c982b2eaSJohan Hedberg 496c982b2eaSJohan Hedberg return 0; 497c982b2eaSJohan Hedberg } 498c982b2eaSJohan Hedberg 499c982b2eaSJohan Hedberg static int rpa_timeout_get(void *data, u64 *val) 500c982b2eaSJohan Hedberg { 501c982b2eaSJohan Hedberg struct hci_dev *hdev = data; 502c982b2eaSJohan Hedberg 503c982b2eaSJohan Hedberg hci_dev_lock(hdev); 504c982b2eaSJohan Hedberg *val = hdev->rpa_timeout; 505c982b2eaSJohan Hedberg hci_dev_unlock(hdev); 506c982b2eaSJohan Hedberg 507c982b2eaSJohan Hedberg return 0; 508c982b2eaSJohan Hedberg } 509c982b2eaSJohan Hedberg 510c982b2eaSJohan Hedberg DEFINE_SIMPLE_ATTRIBUTE(rpa_timeout_fops, rpa_timeout_get, 511c982b2eaSJohan Hedberg rpa_timeout_set, "%llu\n"); 512c982b2eaSJohan Hedberg 5132bfa3531SMarcel Holtmann static int sniff_min_interval_set(void *data, u64 val) 5142bfa3531SMarcel Holtmann { 5152bfa3531SMarcel Holtmann struct hci_dev *hdev = data; 5162bfa3531SMarcel Holtmann 5172bfa3531SMarcel Holtmann if (val == 0 || val % 2 || val > hdev->sniff_max_interval) 5182bfa3531SMarcel Holtmann return -EINVAL; 5192bfa3531SMarcel Holtmann 5202bfa3531SMarcel Holtmann hci_dev_lock(hdev); 5212bfa3531SMarcel Holtmann hdev->sniff_min_interval = val; 5222bfa3531SMarcel Holtmann hci_dev_unlock(hdev); 5232bfa3531SMarcel Holtmann 5242bfa3531SMarcel Holtmann return 0; 5252bfa3531SMarcel Holtmann } 5262bfa3531SMarcel Holtmann 5272bfa3531SMarcel Holtmann static int sniff_min_interval_get(void *data, u64 *val) 5282bfa3531SMarcel Holtmann { 5292bfa3531SMarcel Holtmann struct hci_dev *hdev = data; 5302bfa3531SMarcel Holtmann 5312bfa3531SMarcel Holtmann hci_dev_lock(hdev); 5322bfa3531SMarcel Holtmann *val = hdev->sniff_min_interval; 5332bfa3531SMarcel Holtmann hci_dev_unlock(hdev); 5342bfa3531SMarcel Holtmann 5352bfa3531SMarcel Holtmann return 0; 5362bfa3531SMarcel Holtmann } 5372bfa3531SMarcel Holtmann 5382bfa3531SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get, 5392bfa3531SMarcel Holtmann sniff_min_interval_set, "%llu\n"); 5402bfa3531SMarcel Holtmann 5412bfa3531SMarcel Holtmann static int sniff_max_interval_set(void *data, u64 val) 5422bfa3531SMarcel Holtmann { 5432bfa3531SMarcel Holtmann struct hci_dev *hdev = data; 5442bfa3531SMarcel Holtmann 5452bfa3531SMarcel Holtmann if (val == 0 || val % 2 || val < hdev->sniff_min_interval) 5462bfa3531SMarcel Holtmann return -EINVAL; 5472bfa3531SMarcel Holtmann 5482bfa3531SMarcel Holtmann hci_dev_lock(hdev); 5492bfa3531SMarcel Holtmann hdev->sniff_max_interval = val; 5502bfa3531SMarcel Holtmann hci_dev_unlock(hdev); 5512bfa3531SMarcel Holtmann 5522bfa3531SMarcel Holtmann return 0; 5532bfa3531SMarcel Holtmann } 5542bfa3531SMarcel Holtmann 5552bfa3531SMarcel Holtmann static int sniff_max_interval_get(void *data, u64 *val) 5562bfa3531SMarcel Holtmann { 5572bfa3531SMarcel Holtmann struct hci_dev *hdev = data; 5582bfa3531SMarcel Holtmann 5592bfa3531SMarcel Holtmann hci_dev_lock(hdev); 5602bfa3531SMarcel Holtmann *val = hdev->sniff_max_interval; 5612bfa3531SMarcel Holtmann hci_dev_unlock(hdev); 5622bfa3531SMarcel Holtmann 5632bfa3531SMarcel Holtmann return 0; 5642bfa3531SMarcel Holtmann } 5652bfa3531SMarcel Holtmann 5662bfa3531SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get, 5672bfa3531SMarcel Holtmann sniff_max_interval_set, "%llu\n"); 5682bfa3531SMarcel Holtmann 56931ad1691SAndrzej Kaczmarek static int conn_info_min_age_set(void *data, u64 val) 57031ad1691SAndrzej Kaczmarek { 57131ad1691SAndrzej Kaczmarek struct hci_dev *hdev = data; 57231ad1691SAndrzej Kaczmarek 57331ad1691SAndrzej Kaczmarek if (val == 0 || val > hdev->conn_info_max_age) 57431ad1691SAndrzej Kaczmarek return -EINVAL; 57531ad1691SAndrzej Kaczmarek 57631ad1691SAndrzej Kaczmarek hci_dev_lock(hdev); 57731ad1691SAndrzej Kaczmarek hdev->conn_info_min_age = val; 57831ad1691SAndrzej Kaczmarek hci_dev_unlock(hdev); 57931ad1691SAndrzej Kaczmarek 58031ad1691SAndrzej Kaczmarek return 0; 58131ad1691SAndrzej Kaczmarek } 58231ad1691SAndrzej Kaczmarek 58331ad1691SAndrzej Kaczmarek static int conn_info_min_age_get(void *data, u64 *val) 58431ad1691SAndrzej Kaczmarek { 58531ad1691SAndrzej Kaczmarek struct hci_dev *hdev = data; 58631ad1691SAndrzej Kaczmarek 58731ad1691SAndrzej Kaczmarek hci_dev_lock(hdev); 58831ad1691SAndrzej Kaczmarek *val = hdev->conn_info_min_age; 58931ad1691SAndrzej Kaczmarek hci_dev_unlock(hdev); 59031ad1691SAndrzej Kaczmarek 59131ad1691SAndrzej Kaczmarek return 0; 59231ad1691SAndrzej Kaczmarek } 59331ad1691SAndrzej Kaczmarek 59431ad1691SAndrzej Kaczmarek DEFINE_SIMPLE_ATTRIBUTE(conn_info_min_age_fops, conn_info_min_age_get, 59531ad1691SAndrzej Kaczmarek conn_info_min_age_set, "%llu\n"); 59631ad1691SAndrzej Kaczmarek 59731ad1691SAndrzej Kaczmarek static int conn_info_max_age_set(void *data, u64 val) 59831ad1691SAndrzej Kaczmarek { 59931ad1691SAndrzej Kaczmarek struct hci_dev *hdev = data; 60031ad1691SAndrzej Kaczmarek 60131ad1691SAndrzej Kaczmarek if (val == 0 || val < hdev->conn_info_min_age) 60231ad1691SAndrzej Kaczmarek return -EINVAL; 60331ad1691SAndrzej Kaczmarek 60431ad1691SAndrzej Kaczmarek hci_dev_lock(hdev); 60531ad1691SAndrzej Kaczmarek hdev->conn_info_max_age = val; 60631ad1691SAndrzej Kaczmarek hci_dev_unlock(hdev); 60731ad1691SAndrzej Kaczmarek 60831ad1691SAndrzej Kaczmarek return 0; 60931ad1691SAndrzej Kaczmarek } 61031ad1691SAndrzej Kaczmarek 61131ad1691SAndrzej Kaczmarek static int conn_info_max_age_get(void *data, u64 *val) 61231ad1691SAndrzej Kaczmarek { 61331ad1691SAndrzej Kaczmarek struct hci_dev *hdev = data; 61431ad1691SAndrzej Kaczmarek 61531ad1691SAndrzej Kaczmarek hci_dev_lock(hdev); 61631ad1691SAndrzej Kaczmarek *val = hdev->conn_info_max_age; 61731ad1691SAndrzej Kaczmarek hci_dev_unlock(hdev); 61831ad1691SAndrzej Kaczmarek 61931ad1691SAndrzej Kaczmarek return 0; 62031ad1691SAndrzej Kaczmarek } 62131ad1691SAndrzej Kaczmarek 62231ad1691SAndrzej Kaczmarek DEFINE_SIMPLE_ATTRIBUTE(conn_info_max_age_fops, conn_info_max_age_get, 62331ad1691SAndrzej Kaczmarek conn_info_max_age_set, "%llu\n"); 62431ad1691SAndrzej Kaczmarek 625ac345813SMarcel Holtmann static int identity_show(struct seq_file *f, void *p) 626ac345813SMarcel Holtmann { 627ac345813SMarcel Holtmann struct hci_dev *hdev = f->private; 628a1f4c318SJohan Hedberg bdaddr_t addr; 629ac345813SMarcel Holtmann u8 addr_type; 630ac345813SMarcel Holtmann 631ac345813SMarcel Holtmann hci_dev_lock(hdev); 632ac345813SMarcel Holtmann 633a1f4c318SJohan Hedberg hci_copy_identity_address(hdev, &addr, &addr_type); 634ac345813SMarcel Holtmann 635a1f4c318SJohan Hedberg seq_printf(f, "%pMR (type %u) %*phN %pMR\n", &addr, addr_type, 636473deef2SMarcel Holtmann 16, hdev->irk, &hdev->rpa); 637ac345813SMarcel Holtmann 638ac345813SMarcel Holtmann hci_dev_unlock(hdev); 639ac345813SMarcel Holtmann 640ac345813SMarcel Holtmann return 0; 641ac345813SMarcel Holtmann } 642ac345813SMarcel Holtmann 643ac345813SMarcel Holtmann static int identity_open(struct inode *inode, struct file *file) 644ac345813SMarcel Holtmann { 645ac345813SMarcel Holtmann return single_open(file, identity_show, inode->i_private); 646ac345813SMarcel Holtmann } 647ac345813SMarcel Holtmann 648ac345813SMarcel Holtmann static const struct file_operations identity_fops = { 649ac345813SMarcel Holtmann .open = identity_open, 650ac345813SMarcel Holtmann .read = seq_read, 651ac345813SMarcel Holtmann .llseek = seq_lseek, 652ac345813SMarcel Holtmann .release = single_release, 653ac345813SMarcel Holtmann }; 654ac345813SMarcel Holtmann 6557a4cd51dSMarcel Holtmann static int random_address_show(struct seq_file *f, void *p) 6567a4cd51dSMarcel Holtmann { 6577a4cd51dSMarcel Holtmann struct hci_dev *hdev = f->private; 6587a4cd51dSMarcel Holtmann 6597a4cd51dSMarcel Holtmann hci_dev_lock(hdev); 6607a4cd51dSMarcel Holtmann seq_printf(f, "%pMR\n", &hdev->random_addr); 6617a4cd51dSMarcel Holtmann hci_dev_unlock(hdev); 6627a4cd51dSMarcel Holtmann 6637a4cd51dSMarcel Holtmann return 0; 6647a4cd51dSMarcel Holtmann } 6657a4cd51dSMarcel Holtmann 6667a4cd51dSMarcel Holtmann static int random_address_open(struct inode *inode, struct file *file) 6677a4cd51dSMarcel Holtmann { 6687a4cd51dSMarcel Holtmann return single_open(file, random_address_show, inode->i_private); 6697a4cd51dSMarcel Holtmann } 6707a4cd51dSMarcel Holtmann 6717a4cd51dSMarcel Holtmann static const struct file_operations random_address_fops = { 6727a4cd51dSMarcel Holtmann .open = random_address_open, 6737a4cd51dSMarcel Holtmann .read = seq_read, 6747a4cd51dSMarcel Holtmann .llseek = seq_lseek, 6757a4cd51dSMarcel Holtmann .release = single_release, 6767a4cd51dSMarcel Holtmann }; 6777a4cd51dSMarcel Holtmann 678e7b8fc92SMarcel Holtmann static int static_address_show(struct seq_file *f, void *p) 679e7b8fc92SMarcel Holtmann { 680e7b8fc92SMarcel Holtmann struct hci_dev *hdev = f->private; 681e7b8fc92SMarcel Holtmann 682e7b8fc92SMarcel Holtmann hci_dev_lock(hdev); 683e7b8fc92SMarcel Holtmann seq_printf(f, "%pMR\n", &hdev->static_addr); 684e7b8fc92SMarcel Holtmann hci_dev_unlock(hdev); 685e7b8fc92SMarcel Holtmann 686e7b8fc92SMarcel Holtmann return 0; 687e7b8fc92SMarcel Holtmann } 688e7b8fc92SMarcel Holtmann 689e7b8fc92SMarcel Holtmann static int static_address_open(struct inode *inode, struct file *file) 690e7b8fc92SMarcel Holtmann { 691e7b8fc92SMarcel Holtmann return single_open(file, static_address_show, inode->i_private); 692e7b8fc92SMarcel Holtmann } 693e7b8fc92SMarcel Holtmann 694e7b8fc92SMarcel Holtmann static const struct file_operations static_address_fops = { 695e7b8fc92SMarcel Holtmann .open = static_address_open, 696e7b8fc92SMarcel Holtmann .read = seq_read, 697e7b8fc92SMarcel Holtmann .llseek = seq_lseek, 698e7b8fc92SMarcel Holtmann .release = single_release, 699e7b8fc92SMarcel Holtmann }; 700e7b8fc92SMarcel Holtmann 701b32bba6cSMarcel Holtmann static ssize_t force_static_address_read(struct file *file, 702b32bba6cSMarcel Holtmann char __user *user_buf, 703b32bba6cSMarcel Holtmann size_t count, loff_t *ppos) 70492202185SMarcel Holtmann { 705b32bba6cSMarcel Holtmann struct hci_dev *hdev = file->private_data; 706b32bba6cSMarcel Holtmann char buf[3]; 70792202185SMarcel Holtmann 708111902f7SMarcel Holtmann buf[0] = test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) ? 'Y': 'N'; 709b32bba6cSMarcel Holtmann buf[1] = '\n'; 710b32bba6cSMarcel Holtmann buf[2] = '\0'; 711b32bba6cSMarcel Holtmann return simple_read_from_buffer(user_buf, count, ppos, buf, 2); 712b32bba6cSMarcel Holtmann } 713b32bba6cSMarcel Holtmann 714b32bba6cSMarcel Holtmann static ssize_t force_static_address_write(struct file *file, 715b32bba6cSMarcel Holtmann const char __user *user_buf, 716b32bba6cSMarcel Holtmann size_t count, loff_t *ppos) 717b32bba6cSMarcel Holtmann { 718b32bba6cSMarcel Holtmann struct hci_dev *hdev = file->private_data; 719b32bba6cSMarcel Holtmann char buf[32]; 720b32bba6cSMarcel Holtmann size_t buf_size = min(count, (sizeof(buf)-1)); 721b32bba6cSMarcel Holtmann bool enable; 722b32bba6cSMarcel Holtmann 723b32bba6cSMarcel Holtmann if (test_bit(HCI_UP, &hdev->flags)) 724b32bba6cSMarcel Holtmann return -EBUSY; 725b32bba6cSMarcel Holtmann 726b32bba6cSMarcel Holtmann if (copy_from_user(buf, user_buf, buf_size)) 727b32bba6cSMarcel Holtmann return -EFAULT; 728b32bba6cSMarcel Holtmann 729b32bba6cSMarcel Holtmann buf[buf_size] = '\0'; 730b32bba6cSMarcel Holtmann if (strtobool(buf, &enable)) 73192202185SMarcel Holtmann return -EINVAL; 73292202185SMarcel Holtmann 733111902f7SMarcel Holtmann if (enable == test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags)) 734b32bba6cSMarcel Holtmann return -EALREADY; 73592202185SMarcel Holtmann 736111902f7SMarcel Holtmann change_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags); 737b32bba6cSMarcel Holtmann 738b32bba6cSMarcel Holtmann return count; 73992202185SMarcel Holtmann } 74092202185SMarcel Holtmann 741b32bba6cSMarcel Holtmann static const struct file_operations force_static_address_fops = { 742b32bba6cSMarcel Holtmann .open = simple_open, 743b32bba6cSMarcel Holtmann .read = force_static_address_read, 744b32bba6cSMarcel Holtmann .write = force_static_address_write, 745b32bba6cSMarcel Holtmann .llseek = default_llseek, 746b32bba6cSMarcel Holtmann }; 74792202185SMarcel Holtmann 748d2ab0ac1SMarcel Holtmann static int white_list_show(struct seq_file *f, void *ptr) 749d2ab0ac1SMarcel Holtmann { 750d2ab0ac1SMarcel Holtmann struct hci_dev *hdev = f->private; 751d2ab0ac1SMarcel Holtmann struct bdaddr_list *b; 752d2ab0ac1SMarcel Holtmann 753d2ab0ac1SMarcel Holtmann hci_dev_lock(hdev); 754d2ab0ac1SMarcel Holtmann list_for_each_entry(b, &hdev->le_white_list, list) 755d2ab0ac1SMarcel Holtmann seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); 756d2ab0ac1SMarcel Holtmann hci_dev_unlock(hdev); 757d2ab0ac1SMarcel Holtmann 758d2ab0ac1SMarcel Holtmann return 0; 759d2ab0ac1SMarcel Holtmann } 760d2ab0ac1SMarcel Holtmann 761d2ab0ac1SMarcel Holtmann static int white_list_open(struct inode *inode, struct file *file) 762d2ab0ac1SMarcel Holtmann { 763d2ab0ac1SMarcel Holtmann return single_open(file, white_list_show, inode->i_private); 764d2ab0ac1SMarcel Holtmann } 765d2ab0ac1SMarcel Holtmann 766d2ab0ac1SMarcel Holtmann static const struct file_operations white_list_fops = { 767d2ab0ac1SMarcel Holtmann .open = white_list_open, 768d2ab0ac1SMarcel Holtmann .read = seq_read, 769d2ab0ac1SMarcel Holtmann .llseek = seq_lseek, 770d2ab0ac1SMarcel Holtmann .release = single_release, 771d2ab0ac1SMarcel Holtmann }; 772d2ab0ac1SMarcel Holtmann 7733698d704SMarcel Holtmann static int identity_resolving_keys_show(struct seq_file *f, void *ptr) 7743698d704SMarcel Holtmann { 7753698d704SMarcel Holtmann struct hci_dev *hdev = f->private; 7763698d704SMarcel Holtmann struct list_head *p, *n; 7773698d704SMarcel Holtmann 7783698d704SMarcel Holtmann hci_dev_lock(hdev); 7793698d704SMarcel Holtmann list_for_each_safe(p, n, &hdev->identity_resolving_keys) { 7803698d704SMarcel Holtmann struct smp_irk *irk = list_entry(p, struct smp_irk, list); 7813698d704SMarcel Holtmann seq_printf(f, "%pMR (type %u) %*phN %pMR\n", 7823698d704SMarcel Holtmann &irk->bdaddr, irk->addr_type, 7833698d704SMarcel Holtmann 16, irk->val, &irk->rpa); 7843698d704SMarcel Holtmann } 7853698d704SMarcel Holtmann hci_dev_unlock(hdev); 7863698d704SMarcel Holtmann 7873698d704SMarcel Holtmann return 0; 7883698d704SMarcel Holtmann } 7893698d704SMarcel Holtmann 7903698d704SMarcel Holtmann static int identity_resolving_keys_open(struct inode *inode, struct file *file) 7913698d704SMarcel Holtmann { 7923698d704SMarcel Holtmann return single_open(file, identity_resolving_keys_show, 7933698d704SMarcel Holtmann inode->i_private); 7943698d704SMarcel Holtmann } 7953698d704SMarcel Holtmann 7963698d704SMarcel Holtmann static const struct file_operations identity_resolving_keys_fops = { 7973698d704SMarcel Holtmann .open = identity_resolving_keys_open, 7983698d704SMarcel Holtmann .read = seq_read, 7993698d704SMarcel Holtmann .llseek = seq_lseek, 8003698d704SMarcel Holtmann .release = single_release, 8013698d704SMarcel Holtmann }; 8023698d704SMarcel Holtmann 8038f8625cdSMarcel Holtmann static int long_term_keys_show(struct seq_file *f, void *ptr) 8048f8625cdSMarcel Holtmann { 8058f8625cdSMarcel Holtmann struct hci_dev *hdev = f->private; 8068f8625cdSMarcel Holtmann struct list_head *p, *n; 8078f8625cdSMarcel Holtmann 8088f8625cdSMarcel Holtmann hci_dev_lock(hdev); 809f813f1beSJohan Hedberg list_for_each_safe(p, n, &hdev->long_term_keys) { 8108f8625cdSMarcel Holtmann struct smp_ltk *ltk = list_entry(p, struct smp_ltk, list); 811fe39c7b2SMarcel Holtmann seq_printf(f, "%pMR (type %u) %u 0x%02x %u %.4x %.16llx %*phN\n", 8128f8625cdSMarcel Holtmann <k->bdaddr, ltk->bdaddr_type, ltk->authenticated, 8138f8625cdSMarcel Holtmann ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv), 814fe39c7b2SMarcel Holtmann __le64_to_cpu(ltk->rand), 16, ltk->val); 8158f8625cdSMarcel Holtmann } 8168f8625cdSMarcel Holtmann hci_dev_unlock(hdev); 8178f8625cdSMarcel Holtmann 8188f8625cdSMarcel Holtmann return 0; 8198f8625cdSMarcel Holtmann } 8208f8625cdSMarcel Holtmann 8218f8625cdSMarcel Holtmann static int long_term_keys_open(struct inode *inode, struct file *file) 8228f8625cdSMarcel Holtmann { 8238f8625cdSMarcel Holtmann return single_open(file, long_term_keys_show, inode->i_private); 8248f8625cdSMarcel Holtmann } 8258f8625cdSMarcel Holtmann 8268f8625cdSMarcel Holtmann static const struct file_operations long_term_keys_fops = { 8278f8625cdSMarcel Holtmann .open = long_term_keys_open, 8288f8625cdSMarcel Holtmann .read = seq_read, 8298f8625cdSMarcel Holtmann .llseek = seq_lseek, 8308f8625cdSMarcel Holtmann .release = single_release, 8318f8625cdSMarcel Holtmann }; 8328f8625cdSMarcel Holtmann 8334e70c7e7SMarcel Holtmann static int conn_min_interval_set(void *data, u64 val) 8344e70c7e7SMarcel Holtmann { 8354e70c7e7SMarcel Holtmann struct hci_dev *hdev = data; 8364e70c7e7SMarcel Holtmann 8374e70c7e7SMarcel Holtmann if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval) 8384e70c7e7SMarcel Holtmann return -EINVAL; 8394e70c7e7SMarcel Holtmann 8404e70c7e7SMarcel Holtmann hci_dev_lock(hdev); 8414e70c7e7SMarcel Holtmann hdev->le_conn_min_interval = val; 8424e70c7e7SMarcel Holtmann hci_dev_unlock(hdev); 8434e70c7e7SMarcel Holtmann 8444e70c7e7SMarcel Holtmann return 0; 8454e70c7e7SMarcel Holtmann } 8464e70c7e7SMarcel Holtmann 8474e70c7e7SMarcel Holtmann static int conn_min_interval_get(void *data, u64 *val) 8484e70c7e7SMarcel Holtmann { 8494e70c7e7SMarcel Holtmann struct hci_dev *hdev = data; 8504e70c7e7SMarcel Holtmann 8514e70c7e7SMarcel Holtmann hci_dev_lock(hdev); 8524e70c7e7SMarcel Holtmann *val = hdev->le_conn_min_interval; 8534e70c7e7SMarcel Holtmann hci_dev_unlock(hdev); 8544e70c7e7SMarcel Holtmann 8554e70c7e7SMarcel Holtmann return 0; 8564e70c7e7SMarcel Holtmann } 8574e70c7e7SMarcel Holtmann 8584e70c7e7SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get, 8594e70c7e7SMarcel Holtmann conn_min_interval_set, "%llu\n"); 8604e70c7e7SMarcel Holtmann 8614e70c7e7SMarcel Holtmann static int conn_max_interval_set(void *data, u64 val) 8624e70c7e7SMarcel Holtmann { 8634e70c7e7SMarcel Holtmann struct hci_dev *hdev = data; 8644e70c7e7SMarcel Holtmann 8654e70c7e7SMarcel Holtmann if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval) 8664e70c7e7SMarcel Holtmann return -EINVAL; 8674e70c7e7SMarcel Holtmann 8684e70c7e7SMarcel Holtmann hci_dev_lock(hdev); 8694e70c7e7SMarcel Holtmann hdev->le_conn_max_interval = val; 8704e70c7e7SMarcel Holtmann hci_dev_unlock(hdev); 8714e70c7e7SMarcel Holtmann 8724e70c7e7SMarcel Holtmann return 0; 8734e70c7e7SMarcel Holtmann } 8744e70c7e7SMarcel Holtmann 8754e70c7e7SMarcel Holtmann static int conn_max_interval_get(void *data, u64 *val) 8764e70c7e7SMarcel Holtmann { 8774e70c7e7SMarcel Holtmann struct hci_dev *hdev = data; 8784e70c7e7SMarcel Holtmann 8794e70c7e7SMarcel Holtmann hci_dev_lock(hdev); 8804e70c7e7SMarcel Holtmann *val = hdev->le_conn_max_interval; 8814e70c7e7SMarcel Holtmann hci_dev_unlock(hdev); 8824e70c7e7SMarcel Holtmann 8834e70c7e7SMarcel Holtmann return 0; 8844e70c7e7SMarcel Holtmann } 8854e70c7e7SMarcel Holtmann 8864e70c7e7SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get, 8874e70c7e7SMarcel Holtmann conn_max_interval_set, "%llu\n"); 8884e70c7e7SMarcel Holtmann 889816a93d1SMarcel Holtmann static int conn_latency_set(void *data, u64 val) 890816a93d1SMarcel Holtmann { 891816a93d1SMarcel Holtmann struct hci_dev *hdev = data; 892816a93d1SMarcel Holtmann 893816a93d1SMarcel Holtmann if (val > 0x01f3) 894816a93d1SMarcel Holtmann return -EINVAL; 895816a93d1SMarcel Holtmann 896816a93d1SMarcel Holtmann hci_dev_lock(hdev); 897816a93d1SMarcel Holtmann hdev->le_conn_latency = val; 898816a93d1SMarcel Holtmann hci_dev_unlock(hdev); 899816a93d1SMarcel Holtmann 900816a93d1SMarcel Holtmann return 0; 901816a93d1SMarcel Holtmann } 902816a93d1SMarcel Holtmann 903816a93d1SMarcel Holtmann static int conn_latency_get(void *data, u64 *val) 904816a93d1SMarcel Holtmann { 905816a93d1SMarcel Holtmann struct hci_dev *hdev = data; 906816a93d1SMarcel Holtmann 907816a93d1SMarcel Holtmann hci_dev_lock(hdev); 908816a93d1SMarcel Holtmann *val = hdev->le_conn_latency; 909816a93d1SMarcel Holtmann hci_dev_unlock(hdev); 910816a93d1SMarcel Holtmann 911816a93d1SMarcel Holtmann return 0; 912816a93d1SMarcel Holtmann } 913816a93d1SMarcel Holtmann 914816a93d1SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(conn_latency_fops, conn_latency_get, 915816a93d1SMarcel Holtmann conn_latency_set, "%llu\n"); 916816a93d1SMarcel Holtmann 917f1649577SMarcel Holtmann static int supervision_timeout_set(void *data, u64 val) 918f1649577SMarcel Holtmann { 919f1649577SMarcel Holtmann struct hci_dev *hdev = data; 920f1649577SMarcel Holtmann 921f1649577SMarcel Holtmann if (val < 0x000a || val > 0x0c80) 922f1649577SMarcel Holtmann return -EINVAL; 923f1649577SMarcel Holtmann 924f1649577SMarcel Holtmann hci_dev_lock(hdev); 925f1649577SMarcel Holtmann hdev->le_supv_timeout = val; 926f1649577SMarcel Holtmann hci_dev_unlock(hdev); 927f1649577SMarcel Holtmann 928f1649577SMarcel Holtmann return 0; 929f1649577SMarcel Holtmann } 930f1649577SMarcel Holtmann 931f1649577SMarcel Holtmann static int supervision_timeout_get(void *data, u64 *val) 932f1649577SMarcel Holtmann { 933f1649577SMarcel Holtmann struct hci_dev *hdev = data; 934f1649577SMarcel Holtmann 935f1649577SMarcel Holtmann hci_dev_lock(hdev); 936f1649577SMarcel Holtmann *val = hdev->le_supv_timeout; 937f1649577SMarcel Holtmann hci_dev_unlock(hdev); 938f1649577SMarcel Holtmann 939f1649577SMarcel Holtmann return 0; 940f1649577SMarcel Holtmann } 941f1649577SMarcel Holtmann 942f1649577SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(supervision_timeout_fops, supervision_timeout_get, 943f1649577SMarcel Holtmann supervision_timeout_set, "%llu\n"); 944f1649577SMarcel Holtmann 9453f959d46SMarcel Holtmann static int adv_channel_map_set(void *data, u64 val) 9463f959d46SMarcel Holtmann { 9473f959d46SMarcel Holtmann struct hci_dev *hdev = data; 9483f959d46SMarcel Holtmann 9493f959d46SMarcel Holtmann if (val < 0x01 || val > 0x07) 9503f959d46SMarcel Holtmann return -EINVAL; 9513f959d46SMarcel Holtmann 9523f959d46SMarcel Holtmann hci_dev_lock(hdev); 9533f959d46SMarcel Holtmann hdev->le_adv_channel_map = val; 9543f959d46SMarcel Holtmann hci_dev_unlock(hdev); 9553f959d46SMarcel Holtmann 9563f959d46SMarcel Holtmann return 0; 9573f959d46SMarcel Holtmann } 9583f959d46SMarcel Holtmann 9593f959d46SMarcel Holtmann static int adv_channel_map_get(void *data, u64 *val) 9603f959d46SMarcel Holtmann { 9613f959d46SMarcel Holtmann struct hci_dev *hdev = data; 9623f959d46SMarcel Holtmann 9633f959d46SMarcel Holtmann hci_dev_lock(hdev); 9643f959d46SMarcel Holtmann *val = hdev->le_adv_channel_map; 9653f959d46SMarcel Holtmann hci_dev_unlock(hdev); 9663f959d46SMarcel Holtmann 9673f959d46SMarcel Holtmann return 0; 9683f959d46SMarcel Holtmann } 9693f959d46SMarcel Holtmann 9703f959d46SMarcel Holtmann DEFINE_SIMPLE_ATTRIBUTE(adv_channel_map_fops, adv_channel_map_get, 9713f959d46SMarcel Holtmann adv_channel_map_set, "%llu\n"); 9723f959d46SMarcel Holtmann 973729a1051SGeorg Lukas static int adv_min_interval_set(void *data, u64 val) 97489863109SJukka Rissanen { 975729a1051SGeorg Lukas struct hci_dev *hdev = data; 97689863109SJukka Rissanen 977729a1051SGeorg Lukas if (val < 0x0020 || val > 0x4000 || val > hdev->le_adv_max_interval) 97889863109SJukka Rissanen return -EINVAL; 97989863109SJukka Rissanen 9807d474e06SAndre Guedes hci_dev_lock(hdev); 981729a1051SGeorg Lukas hdev->le_adv_min_interval = val; 9827d474e06SAndre Guedes hci_dev_unlock(hdev); 9837d474e06SAndre Guedes 9847d474e06SAndre Guedes return 0; 9857d474e06SAndre Guedes } 9867d474e06SAndre Guedes 987729a1051SGeorg Lukas static int adv_min_interval_get(void *data, u64 *val) 9887d474e06SAndre Guedes { 989729a1051SGeorg Lukas struct hci_dev *hdev = data; 990729a1051SGeorg Lukas 991729a1051SGeorg Lukas hci_dev_lock(hdev); 992729a1051SGeorg Lukas *val = hdev->le_adv_min_interval; 993729a1051SGeorg Lukas hci_dev_unlock(hdev); 994729a1051SGeorg Lukas 995729a1051SGeorg Lukas return 0; 9967d474e06SAndre Guedes } 9977d474e06SAndre Guedes 998729a1051SGeorg Lukas DEFINE_SIMPLE_ATTRIBUTE(adv_min_interval_fops, adv_min_interval_get, 999729a1051SGeorg Lukas adv_min_interval_set, "%llu\n"); 10007d474e06SAndre Guedes 1001729a1051SGeorg Lukas static int adv_max_interval_set(void *data, u64 val) 1002729a1051SGeorg Lukas { 1003729a1051SGeorg Lukas struct hci_dev *hdev = data; 1004729a1051SGeorg Lukas 1005729a1051SGeorg Lukas if (val < 0x0020 || val > 0x4000 || val < hdev->le_adv_min_interval) 10067d474e06SAndre Guedes return -EINVAL; 10077d474e06SAndre Guedes 10087d474e06SAndre Guedes hci_dev_lock(hdev); 1009729a1051SGeorg Lukas hdev->le_adv_max_interval = val; 10107d474e06SAndre Guedes hci_dev_unlock(hdev); 10117d474e06SAndre Guedes 1012729a1051SGeorg Lukas return 0; 10137d474e06SAndre Guedes } 10147d474e06SAndre Guedes 1015729a1051SGeorg Lukas static int adv_max_interval_get(void *data, u64 *val) 1016729a1051SGeorg Lukas { 1017729a1051SGeorg Lukas struct hci_dev *hdev = data; 1018729a1051SGeorg Lukas 10197d474e06SAndre Guedes hci_dev_lock(hdev); 1020729a1051SGeorg Lukas *val = hdev->le_adv_max_interval; 10217d474e06SAndre Guedes hci_dev_unlock(hdev); 1022729a1051SGeorg Lukas 1023729a1051SGeorg Lukas return 0; 1024729a1051SGeorg Lukas } 1025729a1051SGeorg Lukas 1026729a1051SGeorg Lukas DEFINE_SIMPLE_ATTRIBUTE(adv_max_interval_fops, adv_max_interval_get, 1027729a1051SGeorg Lukas adv_max_interval_set, "%llu\n"); 1028729a1051SGeorg Lukas 10290b3c7d37SMarcel Holtmann static int device_list_show(struct seq_file *f, void *ptr) 10307d474e06SAndre Guedes { 10310b3c7d37SMarcel Holtmann struct hci_dev *hdev = f->private; 10327d474e06SAndre Guedes struct hci_conn_params *p; 10337d474e06SAndre Guedes 10347d474e06SAndre Guedes hci_dev_lock(hdev); 10357d474e06SAndre Guedes list_for_each_entry(p, &hdev->le_conn_params, list) { 10360b3c7d37SMarcel Holtmann seq_printf(f, "%pMR %u %u\n", &p->addr, p->addr_type, 10377d474e06SAndre Guedes p->auto_connect); 10387d474e06SAndre Guedes } 10397d474e06SAndre Guedes hci_dev_unlock(hdev); 10407d474e06SAndre Guedes 10417d474e06SAndre Guedes return 0; 10427d474e06SAndre Guedes } 10437d474e06SAndre Guedes 10440b3c7d37SMarcel Holtmann static int device_list_open(struct inode *inode, struct file *file) 10457d474e06SAndre Guedes { 10460b3c7d37SMarcel Holtmann return single_open(file, device_list_show, inode->i_private); 10477d474e06SAndre Guedes } 10487d474e06SAndre Guedes 10490b3c7d37SMarcel Holtmann static const struct file_operations device_list_fops = { 10500b3c7d37SMarcel Holtmann .open = device_list_open, 10517d474e06SAndre Guedes .read = seq_read, 10527d474e06SAndre Guedes .llseek = seq_lseek, 10537d474e06SAndre Guedes .release = single_release, 10547d474e06SAndre Guedes }; 10557d474e06SAndre Guedes 10561da177e4SLinus Torvalds /* ---- HCI requests ---- */ 10571da177e4SLinus Torvalds 105842c6b129SJohan Hedberg static void hci_req_sync_complete(struct hci_dev *hdev, u8 result) 10591da177e4SLinus Torvalds { 106042c6b129SJohan Hedberg BT_DBG("%s result 0x%2.2x", hdev->name, result); 106175fb0e32SJohan Hedberg 10621da177e4SLinus Torvalds if (hdev->req_status == HCI_REQ_PEND) { 10631da177e4SLinus Torvalds hdev->req_result = result; 10641da177e4SLinus Torvalds hdev->req_status = HCI_REQ_DONE; 10651da177e4SLinus Torvalds wake_up_interruptible(&hdev->req_wait_q); 10661da177e4SLinus Torvalds } 10671da177e4SLinus Torvalds } 10681da177e4SLinus Torvalds 10691da177e4SLinus Torvalds static void hci_req_cancel(struct hci_dev *hdev, int err) 10701da177e4SLinus Torvalds { 10711da177e4SLinus Torvalds BT_DBG("%s err 0x%2.2x", hdev->name, err); 10721da177e4SLinus Torvalds 10731da177e4SLinus Torvalds if (hdev->req_status == HCI_REQ_PEND) { 10741da177e4SLinus Torvalds hdev->req_result = err; 10751da177e4SLinus Torvalds hdev->req_status = HCI_REQ_CANCELED; 10761da177e4SLinus Torvalds wake_up_interruptible(&hdev->req_wait_q); 10771da177e4SLinus Torvalds } 10781da177e4SLinus Torvalds } 10791da177e4SLinus Torvalds 108077a63e0aSFengguang Wu static struct sk_buff *hci_get_cmd_complete(struct hci_dev *hdev, u16 opcode, 108177a63e0aSFengguang Wu u8 event) 108275e84b7cSJohan Hedberg { 108375e84b7cSJohan Hedberg struct hci_ev_cmd_complete *ev; 108475e84b7cSJohan Hedberg struct hci_event_hdr *hdr; 108575e84b7cSJohan Hedberg struct sk_buff *skb; 108675e84b7cSJohan Hedberg 108775e84b7cSJohan Hedberg hci_dev_lock(hdev); 108875e84b7cSJohan Hedberg 108975e84b7cSJohan Hedberg skb = hdev->recv_evt; 109075e84b7cSJohan Hedberg hdev->recv_evt = NULL; 109175e84b7cSJohan Hedberg 109275e84b7cSJohan Hedberg hci_dev_unlock(hdev); 109375e84b7cSJohan Hedberg 109475e84b7cSJohan Hedberg if (!skb) 109575e84b7cSJohan Hedberg return ERR_PTR(-ENODATA); 109675e84b7cSJohan Hedberg 109775e84b7cSJohan Hedberg if (skb->len < sizeof(*hdr)) { 109875e84b7cSJohan Hedberg BT_ERR("Too short HCI event"); 109975e84b7cSJohan Hedberg goto failed; 110075e84b7cSJohan Hedberg } 110175e84b7cSJohan Hedberg 110275e84b7cSJohan Hedberg hdr = (void *) skb->data; 110375e84b7cSJohan Hedberg skb_pull(skb, HCI_EVENT_HDR_SIZE); 110475e84b7cSJohan Hedberg 11057b1abbbeSJohan Hedberg if (event) { 11067b1abbbeSJohan Hedberg if (hdr->evt != event) 11077b1abbbeSJohan Hedberg goto failed; 11087b1abbbeSJohan Hedberg return skb; 11097b1abbbeSJohan Hedberg } 11107b1abbbeSJohan Hedberg 111175e84b7cSJohan Hedberg if (hdr->evt != HCI_EV_CMD_COMPLETE) { 111275e84b7cSJohan Hedberg BT_DBG("Last event is not cmd complete (0x%2.2x)", hdr->evt); 111375e84b7cSJohan Hedberg goto failed; 111475e84b7cSJohan Hedberg } 111575e84b7cSJohan Hedberg 111675e84b7cSJohan Hedberg if (skb->len < sizeof(*ev)) { 111775e84b7cSJohan Hedberg BT_ERR("Too short cmd_complete event"); 111875e84b7cSJohan Hedberg goto failed; 111975e84b7cSJohan Hedberg } 112075e84b7cSJohan Hedberg 112175e84b7cSJohan Hedberg ev = (void *) skb->data; 112275e84b7cSJohan Hedberg skb_pull(skb, sizeof(*ev)); 112375e84b7cSJohan Hedberg 112475e84b7cSJohan Hedberg if (opcode == __le16_to_cpu(ev->opcode)) 112575e84b7cSJohan Hedberg return skb; 112675e84b7cSJohan Hedberg 112775e84b7cSJohan Hedberg BT_DBG("opcode doesn't match (0x%2.2x != 0x%2.2x)", opcode, 112875e84b7cSJohan Hedberg __le16_to_cpu(ev->opcode)); 112975e84b7cSJohan Hedberg 113075e84b7cSJohan Hedberg failed: 113175e84b7cSJohan Hedberg kfree_skb(skb); 113275e84b7cSJohan Hedberg return ERR_PTR(-ENODATA); 113375e84b7cSJohan Hedberg } 113475e84b7cSJohan Hedberg 11357b1abbbeSJohan Hedberg struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, 113607dc93ddSJohan Hedberg const void *param, u8 event, u32 timeout) 113775e84b7cSJohan Hedberg { 113875e84b7cSJohan Hedberg DECLARE_WAITQUEUE(wait, current); 113975e84b7cSJohan Hedberg struct hci_request req; 114075e84b7cSJohan Hedberg int err = 0; 114175e84b7cSJohan Hedberg 114275e84b7cSJohan Hedberg BT_DBG("%s", hdev->name); 114375e84b7cSJohan Hedberg 114475e84b7cSJohan Hedberg hci_req_init(&req, hdev); 114575e84b7cSJohan Hedberg 11467b1abbbeSJohan Hedberg hci_req_add_ev(&req, opcode, plen, param, event); 114775e84b7cSJohan Hedberg 114875e84b7cSJohan Hedberg hdev->req_status = HCI_REQ_PEND; 114975e84b7cSJohan Hedberg 115075e84b7cSJohan Hedberg err = hci_req_run(&req, hci_req_sync_complete); 115175e84b7cSJohan Hedberg if (err < 0) 115275e84b7cSJohan Hedberg return ERR_PTR(err); 115375e84b7cSJohan Hedberg 115475e84b7cSJohan Hedberg add_wait_queue(&hdev->req_wait_q, &wait); 115575e84b7cSJohan Hedberg set_current_state(TASK_INTERRUPTIBLE); 115675e84b7cSJohan Hedberg 115775e84b7cSJohan Hedberg schedule_timeout(timeout); 115875e84b7cSJohan Hedberg 115975e84b7cSJohan Hedberg remove_wait_queue(&hdev->req_wait_q, &wait); 116075e84b7cSJohan Hedberg 116175e84b7cSJohan Hedberg if (signal_pending(current)) 116275e84b7cSJohan Hedberg return ERR_PTR(-EINTR); 116375e84b7cSJohan Hedberg 116475e84b7cSJohan Hedberg switch (hdev->req_status) { 116575e84b7cSJohan Hedberg case HCI_REQ_DONE: 116675e84b7cSJohan Hedberg err = -bt_to_errno(hdev->req_result); 116775e84b7cSJohan Hedberg break; 116875e84b7cSJohan Hedberg 116975e84b7cSJohan Hedberg case HCI_REQ_CANCELED: 117075e84b7cSJohan Hedberg err = -hdev->req_result; 117175e84b7cSJohan Hedberg break; 117275e84b7cSJohan Hedberg 117375e84b7cSJohan Hedberg default: 117475e84b7cSJohan Hedberg err = -ETIMEDOUT; 117575e84b7cSJohan Hedberg break; 117675e84b7cSJohan Hedberg } 117775e84b7cSJohan Hedberg 117875e84b7cSJohan Hedberg hdev->req_status = hdev->req_result = 0; 117975e84b7cSJohan Hedberg 118075e84b7cSJohan Hedberg BT_DBG("%s end: err %d", hdev->name, err); 118175e84b7cSJohan Hedberg 118275e84b7cSJohan Hedberg if (err < 0) 118375e84b7cSJohan Hedberg return ERR_PTR(err); 118475e84b7cSJohan Hedberg 11857b1abbbeSJohan Hedberg return hci_get_cmd_complete(hdev, opcode, event); 11867b1abbbeSJohan Hedberg } 11877b1abbbeSJohan Hedberg EXPORT_SYMBOL(__hci_cmd_sync_ev); 11887b1abbbeSJohan Hedberg 11897b1abbbeSJohan Hedberg struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 119007dc93ddSJohan Hedberg const void *param, u32 timeout) 11917b1abbbeSJohan Hedberg { 11927b1abbbeSJohan Hedberg return __hci_cmd_sync_ev(hdev, opcode, plen, param, 0, timeout); 119375e84b7cSJohan Hedberg } 119475e84b7cSJohan Hedberg EXPORT_SYMBOL(__hci_cmd_sync); 119575e84b7cSJohan Hedberg 11961da177e4SLinus Torvalds /* Execute request and wait for completion. */ 119701178cd4SJohan Hedberg static int __hci_req_sync(struct hci_dev *hdev, 119842c6b129SJohan Hedberg void (*func)(struct hci_request *req, 119942c6b129SJohan Hedberg unsigned long opt), 12001da177e4SLinus Torvalds unsigned long opt, __u32 timeout) 12011da177e4SLinus Torvalds { 120242c6b129SJohan Hedberg struct hci_request req; 12031da177e4SLinus Torvalds DECLARE_WAITQUEUE(wait, current); 12041da177e4SLinus Torvalds int err = 0; 12051da177e4SLinus Torvalds 12061da177e4SLinus Torvalds BT_DBG("%s start", hdev->name); 12071da177e4SLinus Torvalds 120842c6b129SJohan Hedberg hci_req_init(&req, hdev); 120942c6b129SJohan Hedberg 12101da177e4SLinus Torvalds hdev->req_status = HCI_REQ_PEND; 12111da177e4SLinus Torvalds 121242c6b129SJohan Hedberg func(&req, opt); 121353cce22dSJohan Hedberg 121442c6b129SJohan Hedberg err = hci_req_run(&req, hci_req_sync_complete); 121542c6b129SJohan Hedberg if (err < 0) { 121653cce22dSJohan Hedberg hdev->req_status = 0; 1217920c8300SAndre Guedes 1218920c8300SAndre Guedes /* ENODATA means the HCI request command queue is empty. 1219920c8300SAndre Guedes * This can happen when a request with conditionals doesn't 1220920c8300SAndre Guedes * trigger any commands to be sent. This is normal behavior 1221920c8300SAndre Guedes * and should not trigger an error return. 122242c6b129SJohan Hedberg */ 1223920c8300SAndre Guedes if (err == -ENODATA) 122442c6b129SJohan Hedberg return 0; 1225920c8300SAndre Guedes 1226920c8300SAndre Guedes return err; 122753cce22dSJohan Hedberg } 122853cce22dSJohan Hedberg 1229bc4445c7SAndre Guedes add_wait_queue(&hdev->req_wait_q, &wait); 1230bc4445c7SAndre Guedes set_current_state(TASK_INTERRUPTIBLE); 1231bc4445c7SAndre Guedes 12321da177e4SLinus Torvalds schedule_timeout(timeout); 12331da177e4SLinus Torvalds 12341da177e4SLinus Torvalds remove_wait_queue(&hdev->req_wait_q, &wait); 12351da177e4SLinus Torvalds 12361da177e4SLinus Torvalds if (signal_pending(current)) 12371da177e4SLinus Torvalds return -EINTR; 12381da177e4SLinus Torvalds 12391da177e4SLinus Torvalds switch (hdev->req_status) { 12401da177e4SLinus Torvalds case HCI_REQ_DONE: 1241e175072fSJoe Perches err = -bt_to_errno(hdev->req_result); 12421da177e4SLinus Torvalds break; 12431da177e4SLinus Torvalds 12441da177e4SLinus Torvalds case HCI_REQ_CANCELED: 12451da177e4SLinus Torvalds err = -hdev->req_result; 12461da177e4SLinus Torvalds break; 12471da177e4SLinus Torvalds 12481da177e4SLinus Torvalds default: 12491da177e4SLinus Torvalds err = -ETIMEDOUT; 12501da177e4SLinus Torvalds break; 12513ff50b79SStephen Hemminger } 12521da177e4SLinus Torvalds 1253a5040efaSJohan Hedberg hdev->req_status = hdev->req_result = 0; 12541da177e4SLinus Torvalds 12551da177e4SLinus Torvalds BT_DBG("%s end: err %d", hdev->name, err); 12561da177e4SLinus Torvalds 12571da177e4SLinus Torvalds return err; 12581da177e4SLinus Torvalds } 12591da177e4SLinus Torvalds 126001178cd4SJohan Hedberg static int hci_req_sync(struct hci_dev *hdev, 126142c6b129SJohan Hedberg void (*req)(struct hci_request *req, 126242c6b129SJohan Hedberg unsigned long opt), 12631da177e4SLinus Torvalds unsigned long opt, __u32 timeout) 12641da177e4SLinus Torvalds { 12651da177e4SLinus Torvalds int ret; 12661da177e4SLinus Torvalds 12677c6a329eSMarcel Holtmann if (!test_bit(HCI_UP, &hdev->flags)) 12687c6a329eSMarcel Holtmann return -ENETDOWN; 12697c6a329eSMarcel Holtmann 12701da177e4SLinus Torvalds /* Serialize all requests */ 12711da177e4SLinus Torvalds hci_req_lock(hdev); 127201178cd4SJohan Hedberg ret = __hci_req_sync(hdev, req, opt, timeout); 12731da177e4SLinus Torvalds hci_req_unlock(hdev); 12741da177e4SLinus Torvalds 12751da177e4SLinus Torvalds return ret; 12761da177e4SLinus Torvalds } 12771da177e4SLinus Torvalds 127842c6b129SJohan Hedberg static void hci_reset_req(struct hci_request *req, unsigned long opt) 12791da177e4SLinus Torvalds { 128042c6b129SJohan Hedberg BT_DBG("%s %ld", req->hdev->name, opt); 12811da177e4SLinus Torvalds 12821da177e4SLinus Torvalds /* Reset device */ 128342c6b129SJohan Hedberg set_bit(HCI_RESET, &req->hdev->flags); 128442c6b129SJohan Hedberg hci_req_add(req, HCI_OP_RESET, 0, NULL); 12851da177e4SLinus Torvalds } 12861da177e4SLinus Torvalds 128742c6b129SJohan Hedberg static void bredr_init(struct hci_request *req) 12881da177e4SLinus Torvalds { 128942c6b129SJohan Hedberg req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_PACKET_BASED; 12902455a3eaSAndrei Emeltchenko 12911da177e4SLinus Torvalds /* Read Local Supported Features */ 129242c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL); 12931da177e4SLinus Torvalds 12941143e5a6SMarcel Holtmann /* Read Local Version */ 129542c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); 12962177bab5SJohan Hedberg 12972177bab5SJohan Hedberg /* Read BD Address */ 129842c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL); 12991da177e4SLinus Torvalds } 13001da177e4SLinus Torvalds 130142c6b129SJohan Hedberg static void amp_init(struct hci_request *req) 1302e61ef499SAndrei Emeltchenko { 130342c6b129SJohan Hedberg req->hdev->flow_ctl_mode = HCI_FLOW_CTL_MODE_BLOCK_BASED; 13042455a3eaSAndrei Emeltchenko 1305e61ef499SAndrei Emeltchenko /* Read Local Version */ 130642c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); 13076bcbc489SAndrei Emeltchenko 1308f6996cfeSMarcel Holtmann /* Read Local Supported Commands */ 1309f6996cfeSMarcel Holtmann hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); 1310f6996cfeSMarcel Holtmann 1311f6996cfeSMarcel Holtmann /* Read Local Supported Features */ 1312f6996cfeSMarcel Holtmann hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL); 1313f6996cfeSMarcel Holtmann 13146bcbc489SAndrei Emeltchenko /* Read Local AMP Info */ 131542c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL); 1316e71dfabaSAndrei Emeltchenko 1317e71dfabaSAndrei Emeltchenko /* Read Data Blk size */ 131842c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL); 13197528ca1cSMarcel Holtmann 1320f38ba941SMarcel Holtmann /* Read Flow Control Mode */ 1321f38ba941SMarcel Holtmann hci_req_add(req, HCI_OP_READ_FLOW_CONTROL_MODE, 0, NULL); 1322f38ba941SMarcel Holtmann 13237528ca1cSMarcel Holtmann /* Read Location Data */ 13247528ca1cSMarcel Holtmann hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL); 1325e61ef499SAndrei Emeltchenko } 1326e61ef499SAndrei Emeltchenko 132742c6b129SJohan Hedberg static void hci_init1_req(struct hci_request *req, unsigned long opt) 1328e61ef499SAndrei Emeltchenko { 132942c6b129SJohan Hedberg struct hci_dev *hdev = req->hdev; 1330e61ef499SAndrei Emeltchenko 1331e61ef499SAndrei Emeltchenko BT_DBG("%s %ld", hdev->name, opt); 1332e61ef499SAndrei Emeltchenko 133311778716SAndrei Emeltchenko /* Reset */ 133411778716SAndrei Emeltchenko if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) 133542c6b129SJohan Hedberg hci_reset_req(req, 0); 133611778716SAndrei Emeltchenko 1337e61ef499SAndrei Emeltchenko switch (hdev->dev_type) { 1338e61ef499SAndrei Emeltchenko case HCI_BREDR: 133942c6b129SJohan Hedberg bredr_init(req); 1340e61ef499SAndrei Emeltchenko break; 1341e61ef499SAndrei Emeltchenko 1342e61ef499SAndrei Emeltchenko case HCI_AMP: 134342c6b129SJohan Hedberg amp_init(req); 1344e61ef499SAndrei Emeltchenko break; 1345e61ef499SAndrei Emeltchenko 1346e61ef499SAndrei Emeltchenko default: 1347e61ef499SAndrei Emeltchenko BT_ERR("Unknown device type %d", hdev->dev_type); 1348e61ef499SAndrei Emeltchenko break; 1349e61ef499SAndrei Emeltchenko } 1350e61ef499SAndrei Emeltchenko } 1351e61ef499SAndrei Emeltchenko 135242c6b129SJohan Hedberg static void bredr_setup(struct hci_request *req) 13532177bab5SJohan Hedberg { 13544ca048e3SMarcel Holtmann struct hci_dev *hdev = req->hdev; 13554ca048e3SMarcel Holtmann 13562177bab5SJohan Hedberg __le16 param; 13572177bab5SJohan Hedberg __u8 flt_type; 13582177bab5SJohan Hedberg 13592177bab5SJohan Hedberg /* Read Buffer Size (ACL mtu, max pkt, etc.) */ 136042c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_BUFFER_SIZE, 0, NULL); 13612177bab5SJohan Hedberg 13622177bab5SJohan Hedberg /* Read Class of Device */ 136342c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_CLASS_OF_DEV, 0, NULL); 13642177bab5SJohan Hedberg 13652177bab5SJohan Hedberg /* Read Local Name */ 136642c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_NAME, 0, NULL); 13672177bab5SJohan Hedberg 13682177bab5SJohan Hedberg /* Read Voice Setting */ 136942c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_VOICE_SETTING, 0, NULL); 13702177bab5SJohan Hedberg 1371b4cb9fb2SMarcel Holtmann /* Read Number of Supported IAC */ 1372b4cb9fb2SMarcel Holtmann hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL); 1373b4cb9fb2SMarcel Holtmann 13744b836f39SMarcel Holtmann /* Read Current IAC LAP */ 13754b836f39SMarcel Holtmann hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL); 13764b836f39SMarcel Holtmann 13772177bab5SJohan Hedberg /* Clear Event Filters */ 13782177bab5SJohan Hedberg flt_type = HCI_FLT_CLEAR_ALL; 137942c6b129SJohan Hedberg hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type); 13802177bab5SJohan Hedberg 13812177bab5SJohan Hedberg /* Connection accept timeout ~20 secs */ 1382dcf4adbfSJoe Perches param = cpu_to_le16(0x7d00); 138342c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_CA_TIMEOUT, 2, ¶m); 13842177bab5SJohan Hedberg 13854ca048e3SMarcel Holtmann /* AVM Berlin (31), aka "BlueFRITZ!", reports version 1.2, 13864ca048e3SMarcel Holtmann * but it does not support page scan related HCI commands. 13874ca048e3SMarcel Holtmann */ 13884ca048e3SMarcel Holtmann if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1) { 1389f332ec66SJohan Hedberg hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL); 1390f332ec66SJohan Hedberg hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL); 1391f332ec66SJohan Hedberg } 13922177bab5SJohan Hedberg } 13932177bab5SJohan Hedberg 139442c6b129SJohan Hedberg static void le_setup(struct hci_request *req) 13952177bab5SJohan Hedberg { 1396c73eee91SJohan Hedberg struct hci_dev *hdev = req->hdev; 1397c73eee91SJohan Hedberg 13982177bab5SJohan Hedberg /* Read LE Buffer Size */ 139942c6b129SJohan Hedberg hci_req_add(req, HCI_OP_LE_READ_BUFFER_SIZE, 0, NULL); 14002177bab5SJohan Hedberg 14012177bab5SJohan Hedberg /* Read LE Local Supported Features */ 140242c6b129SJohan Hedberg hci_req_add(req, HCI_OP_LE_READ_LOCAL_FEATURES, 0, NULL); 14032177bab5SJohan Hedberg 1404747d3f03SMarcel Holtmann /* Read LE Supported States */ 1405747d3f03SMarcel Holtmann hci_req_add(req, HCI_OP_LE_READ_SUPPORTED_STATES, 0, NULL); 1406747d3f03SMarcel Holtmann 14072177bab5SJohan Hedberg /* Read LE White List Size */ 140842c6b129SJohan Hedberg hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE, 0, NULL); 14092177bab5SJohan Hedberg 1410747d3f03SMarcel Holtmann /* Clear LE White List */ 1411747d3f03SMarcel Holtmann hci_req_add(req, HCI_OP_LE_CLEAR_WHITE_LIST, 0, NULL); 1412c73eee91SJohan Hedberg 1413c73eee91SJohan Hedberg /* LE-only controllers have LE implicitly enabled */ 1414c73eee91SJohan Hedberg if (!lmp_bredr_capable(hdev)) 1415c73eee91SJohan Hedberg set_bit(HCI_LE_ENABLED, &hdev->dev_flags); 14162177bab5SJohan Hedberg } 14172177bab5SJohan Hedberg 14182177bab5SJohan Hedberg static u8 hci_get_inquiry_mode(struct hci_dev *hdev) 14192177bab5SJohan Hedberg { 14202177bab5SJohan Hedberg if (lmp_ext_inq_capable(hdev)) 14212177bab5SJohan Hedberg return 0x02; 14222177bab5SJohan Hedberg 14232177bab5SJohan Hedberg if (lmp_inq_rssi_capable(hdev)) 14242177bab5SJohan Hedberg return 0x01; 14252177bab5SJohan Hedberg 14262177bab5SJohan Hedberg if (hdev->manufacturer == 11 && hdev->hci_rev == 0x00 && 14272177bab5SJohan Hedberg hdev->lmp_subver == 0x0757) 14282177bab5SJohan Hedberg return 0x01; 14292177bab5SJohan Hedberg 14302177bab5SJohan Hedberg if (hdev->manufacturer == 15) { 14312177bab5SJohan Hedberg if (hdev->hci_rev == 0x03 && hdev->lmp_subver == 0x6963) 14322177bab5SJohan Hedberg return 0x01; 14332177bab5SJohan Hedberg if (hdev->hci_rev == 0x09 && hdev->lmp_subver == 0x6963) 14342177bab5SJohan Hedberg return 0x01; 14352177bab5SJohan Hedberg if (hdev->hci_rev == 0x00 && hdev->lmp_subver == 0x6965) 14362177bab5SJohan Hedberg return 0x01; 14372177bab5SJohan Hedberg } 14382177bab5SJohan Hedberg 14392177bab5SJohan Hedberg if (hdev->manufacturer == 31 && hdev->hci_rev == 0x2005 && 14402177bab5SJohan Hedberg hdev->lmp_subver == 0x1805) 14412177bab5SJohan Hedberg return 0x01; 14422177bab5SJohan Hedberg 14432177bab5SJohan Hedberg return 0x00; 14442177bab5SJohan Hedberg } 14452177bab5SJohan Hedberg 144642c6b129SJohan Hedberg static void hci_setup_inquiry_mode(struct hci_request *req) 14472177bab5SJohan Hedberg { 14482177bab5SJohan Hedberg u8 mode; 14492177bab5SJohan Hedberg 145042c6b129SJohan Hedberg mode = hci_get_inquiry_mode(req->hdev); 14512177bab5SJohan Hedberg 145242c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_INQUIRY_MODE, 1, &mode); 14532177bab5SJohan Hedberg } 14542177bab5SJohan Hedberg 145542c6b129SJohan Hedberg static void hci_setup_event_mask(struct hci_request *req) 14562177bab5SJohan Hedberg { 145742c6b129SJohan Hedberg struct hci_dev *hdev = req->hdev; 145842c6b129SJohan Hedberg 14592177bab5SJohan Hedberg /* The second byte is 0xff instead of 0x9f (two reserved bits 14602177bab5SJohan Hedberg * disabled) since a Broadcom 1.2 dongle doesn't respond to the 14612177bab5SJohan Hedberg * command otherwise. 14622177bab5SJohan Hedberg */ 14632177bab5SJohan Hedberg u8 events[8] = { 0xff, 0xff, 0xfb, 0xff, 0x00, 0x00, 0x00, 0x00 }; 14642177bab5SJohan Hedberg 14652177bab5SJohan Hedberg /* CSR 1.1 dongles does not accept any bitfield so don't try to set 14662177bab5SJohan Hedberg * any event mask for pre 1.2 devices. 14672177bab5SJohan Hedberg */ 14682177bab5SJohan Hedberg if (hdev->hci_ver < BLUETOOTH_VER_1_2) 14692177bab5SJohan Hedberg return; 14702177bab5SJohan Hedberg 14712177bab5SJohan Hedberg if (lmp_bredr_capable(hdev)) { 14722177bab5SJohan Hedberg events[4] |= 0x01; /* Flow Specification Complete */ 14732177bab5SJohan Hedberg events[4] |= 0x02; /* Inquiry Result with RSSI */ 14742177bab5SJohan Hedberg events[4] |= 0x04; /* Read Remote Extended Features Complete */ 14752177bab5SJohan Hedberg events[5] |= 0x08; /* Synchronous Connection Complete */ 14762177bab5SJohan Hedberg events[5] |= 0x10; /* Synchronous Connection Changed */ 1477c7882cbdSMarcel Holtmann } else { 1478c7882cbdSMarcel Holtmann /* Use a different default for LE-only devices */ 1479c7882cbdSMarcel Holtmann memset(events, 0, sizeof(events)); 1480c7882cbdSMarcel Holtmann events[0] |= 0x10; /* Disconnection Complete */ 1481c7882cbdSMarcel Holtmann events[1] |= 0x08; /* Read Remote Version Information Complete */ 1482c7882cbdSMarcel Holtmann events[1] |= 0x20; /* Command Complete */ 1483c7882cbdSMarcel Holtmann events[1] |= 0x40; /* Command Status */ 1484c7882cbdSMarcel Holtmann events[1] |= 0x80; /* Hardware Error */ 1485c7882cbdSMarcel Holtmann events[2] |= 0x04; /* Number of Completed Packets */ 1486c7882cbdSMarcel Holtmann events[3] |= 0x02; /* Data Buffer Overflow */ 14870da71f1bSMarcel Holtmann 14880da71f1bSMarcel Holtmann if (hdev->le_features[0] & HCI_LE_ENCRYPTION) { 14890da71f1bSMarcel Holtmann events[0] |= 0x80; /* Encryption Change */ 1490c7882cbdSMarcel Holtmann events[5] |= 0x80; /* Encryption Key Refresh Complete */ 14912177bab5SJohan Hedberg } 14920da71f1bSMarcel Holtmann } 14932177bab5SJohan Hedberg 14942177bab5SJohan Hedberg if (lmp_inq_rssi_capable(hdev)) 14952177bab5SJohan Hedberg events[4] |= 0x02; /* Inquiry Result with RSSI */ 14962177bab5SJohan Hedberg 14972177bab5SJohan Hedberg if (lmp_sniffsubr_capable(hdev)) 14982177bab5SJohan Hedberg events[5] |= 0x20; /* Sniff Subrating */ 14992177bab5SJohan Hedberg 15002177bab5SJohan Hedberg if (lmp_pause_enc_capable(hdev)) 15012177bab5SJohan Hedberg events[5] |= 0x80; /* Encryption Key Refresh Complete */ 15022177bab5SJohan Hedberg 15032177bab5SJohan Hedberg if (lmp_ext_inq_capable(hdev)) 15042177bab5SJohan Hedberg events[5] |= 0x40; /* Extended Inquiry Result */ 15052177bab5SJohan Hedberg 15062177bab5SJohan Hedberg if (lmp_no_flush_capable(hdev)) 15072177bab5SJohan Hedberg events[7] |= 0x01; /* Enhanced Flush Complete */ 15082177bab5SJohan Hedberg 15092177bab5SJohan Hedberg if (lmp_lsto_capable(hdev)) 15102177bab5SJohan Hedberg events[6] |= 0x80; /* Link Supervision Timeout Changed */ 15112177bab5SJohan Hedberg 15122177bab5SJohan Hedberg if (lmp_ssp_capable(hdev)) { 15132177bab5SJohan Hedberg events[6] |= 0x01; /* IO Capability Request */ 15142177bab5SJohan Hedberg events[6] |= 0x02; /* IO Capability Response */ 15152177bab5SJohan Hedberg events[6] |= 0x04; /* User Confirmation Request */ 15162177bab5SJohan Hedberg events[6] |= 0x08; /* User Passkey Request */ 15172177bab5SJohan Hedberg events[6] |= 0x10; /* Remote OOB Data Request */ 15182177bab5SJohan Hedberg events[6] |= 0x20; /* Simple Pairing Complete */ 15192177bab5SJohan Hedberg events[7] |= 0x04; /* User Passkey Notification */ 15202177bab5SJohan Hedberg events[7] |= 0x08; /* Keypress Notification */ 15212177bab5SJohan Hedberg events[7] |= 0x10; /* Remote Host Supported 15222177bab5SJohan Hedberg * Features Notification 15232177bab5SJohan Hedberg */ 15242177bab5SJohan Hedberg } 15252177bab5SJohan Hedberg 15262177bab5SJohan Hedberg if (lmp_le_capable(hdev)) 15272177bab5SJohan Hedberg events[7] |= 0x20; /* LE Meta-Event */ 15282177bab5SJohan Hedberg 152942c6b129SJohan Hedberg hci_req_add(req, HCI_OP_SET_EVENT_MASK, sizeof(events), events); 15302177bab5SJohan Hedberg } 15312177bab5SJohan Hedberg 153242c6b129SJohan Hedberg static void hci_init2_req(struct hci_request *req, unsigned long opt) 15332177bab5SJohan Hedberg { 153442c6b129SJohan Hedberg struct hci_dev *hdev = req->hdev; 153542c6b129SJohan Hedberg 15362177bab5SJohan Hedberg if (lmp_bredr_capable(hdev)) 153742c6b129SJohan Hedberg bredr_setup(req); 153856f87901SJohan Hedberg else 153956f87901SJohan Hedberg clear_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); 15402177bab5SJohan Hedberg 15412177bab5SJohan Hedberg if (lmp_le_capable(hdev)) 154242c6b129SJohan Hedberg le_setup(req); 15432177bab5SJohan Hedberg 15443f8e2d75SJohan Hedberg /* AVM Berlin (31), aka "BlueFRITZ!", doesn't support the read 15453f8e2d75SJohan Hedberg * local supported commands HCI command. 15463f8e2d75SJohan Hedberg */ 15473f8e2d75SJohan Hedberg if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1) 154842c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); 15492177bab5SJohan Hedberg 15502177bab5SJohan Hedberg if (lmp_ssp_capable(hdev)) { 155157af75a8SMarcel Holtmann /* When SSP is available, then the host features page 155257af75a8SMarcel Holtmann * should also be available as well. However some 155357af75a8SMarcel Holtmann * controllers list the max_page as 0 as long as SSP 155457af75a8SMarcel Holtmann * has not been enabled. To achieve proper debugging 155557af75a8SMarcel Holtmann * output, force the minimum max_page to 1 at least. 155657af75a8SMarcel Holtmann */ 155757af75a8SMarcel Holtmann hdev->max_page = 0x01; 155857af75a8SMarcel Holtmann 15592177bab5SJohan Hedberg if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) { 15602177bab5SJohan Hedberg u8 mode = 0x01; 156142c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_SSP_MODE, 15622177bab5SJohan Hedberg sizeof(mode), &mode); 15632177bab5SJohan Hedberg } else { 15642177bab5SJohan Hedberg struct hci_cp_write_eir cp; 15652177bab5SJohan Hedberg 15662177bab5SJohan Hedberg memset(hdev->eir, 0, sizeof(hdev->eir)); 15672177bab5SJohan Hedberg memset(&cp, 0, sizeof(cp)); 15682177bab5SJohan Hedberg 156942c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp); 15702177bab5SJohan Hedberg } 15712177bab5SJohan Hedberg } 15722177bab5SJohan Hedberg 15732177bab5SJohan Hedberg if (lmp_inq_rssi_capable(hdev)) 157442c6b129SJohan Hedberg hci_setup_inquiry_mode(req); 15752177bab5SJohan Hedberg 15762177bab5SJohan Hedberg if (lmp_inq_tx_pwr_capable(hdev)) 157742c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL); 15782177bab5SJohan Hedberg 15792177bab5SJohan Hedberg if (lmp_ext_feat_capable(hdev)) { 15802177bab5SJohan Hedberg struct hci_cp_read_local_ext_features cp; 15812177bab5SJohan Hedberg 15822177bab5SJohan Hedberg cp.page = 0x01; 158342c6b129SJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES, 158442c6b129SJohan Hedberg sizeof(cp), &cp); 15852177bab5SJohan Hedberg } 15862177bab5SJohan Hedberg 15872177bab5SJohan Hedberg if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) { 15882177bab5SJohan Hedberg u8 enable = 1; 158942c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, sizeof(enable), 15902177bab5SJohan Hedberg &enable); 15912177bab5SJohan Hedberg } 15922177bab5SJohan Hedberg } 15932177bab5SJohan Hedberg 159442c6b129SJohan Hedberg static void hci_setup_link_policy(struct hci_request *req) 15952177bab5SJohan Hedberg { 159642c6b129SJohan Hedberg struct hci_dev *hdev = req->hdev; 15972177bab5SJohan Hedberg struct hci_cp_write_def_link_policy cp; 15982177bab5SJohan Hedberg u16 link_policy = 0; 15992177bab5SJohan Hedberg 16002177bab5SJohan Hedberg if (lmp_rswitch_capable(hdev)) 16012177bab5SJohan Hedberg link_policy |= HCI_LP_RSWITCH; 16022177bab5SJohan Hedberg if (lmp_hold_capable(hdev)) 16032177bab5SJohan Hedberg link_policy |= HCI_LP_HOLD; 16042177bab5SJohan Hedberg if (lmp_sniff_capable(hdev)) 16052177bab5SJohan Hedberg link_policy |= HCI_LP_SNIFF; 16062177bab5SJohan Hedberg if (lmp_park_capable(hdev)) 16072177bab5SJohan Hedberg link_policy |= HCI_LP_PARK; 16082177bab5SJohan Hedberg 16092177bab5SJohan Hedberg cp.policy = cpu_to_le16(link_policy); 161042c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, sizeof(cp), &cp); 16112177bab5SJohan Hedberg } 16122177bab5SJohan Hedberg 161342c6b129SJohan Hedberg static void hci_set_le_support(struct hci_request *req) 16142177bab5SJohan Hedberg { 161542c6b129SJohan Hedberg struct hci_dev *hdev = req->hdev; 16162177bab5SJohan Hedberg struct hci_cp_write_le_host_supported cp; 16172177bab5SJohan Hedberg 1618c73eee91SJohan Hedberg /* LE-only devices do not support explicit enablement */ 1619c73eee91SJohan Hedberg if (!lmp_bredr_capable(hdev)) 1620c73eee91SJohan Hedberg return; 1621c73eee91SJohan Hedberg 16222177bab5SJohan Hedberg memset(&cp, 0, sizeof(cp)); 16232177bab5SJohan Hedberg 16242177bab5SJohan Hedberg if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { 16252177bab5SJohan Hedberg cp.le = 0x01; 162632226e4fSMarcel Holtmann cp.simul = 0x00; 16272177bab5SJohan Hedberg } 16282177bab5SJohan Hedberg 16292177bab5SJohan Hedberg if (cp.le != lmp_host_le_capable(hdev)) 163042c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(cp), 16312177bab5SJohan Hedberg &cp); 16322177bab5SJohan Hedberg } 16332177bab5SJohan Hedberg 1634d62e6d67SJohan Hedberg static void hci_set_event_mask_page_2(struct hci_request *req) 1635d62e6d67SJohan Hedberg { 1636d62e6d67SJohan Hedberg struct hci_dev *hdev = req->hdev; 1637d62e6d67SJohan Hedberg u8 events[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; 1638d62e6d67SJohan Hedberg 1639d62e6d67SJohan Hedberg /* If Connectionless Slave Broadcast master role is supported 1640d62e6d67SJohan Hedberg * enable all necessary events for it. 1641d62e6d67SJohan Hedberg */ 164253b834d2SMarcel Holtmann if (lmp_csb_master_capable(hdev)) { 1643d62e6d67SJohan Hedberg events[1] |= 0x40; /* Triggered Clock Capture */ 1644d62e6d67SJohan Hedberg events[1] |= 0x80; /* Synchronization Train Complete */ 1645d62e6d67SJohan Hedberg events[2] |= 0x10; /* Slave Page Response Timeout */ 1646d62e6d67SJohan Hedberg events[2] |= 0x20; /* CSB Channel Map Change */ 1647d62e6d67SJohan Hedberg } 1648d62e6d67SJohan Hedberg 1649d62e6d67SJohan Hedberg /* If Connectionless Slave Broadcast slave role is supported 1650d62e6d67SJohan Hedberg * enable all necessary events for it. 1651d62e6d67SJohan Hedberg */ 165253b834d2SMarcel Holtmann if (lmp_csb_slave_capable(hdev)) { 1653d62e6d67SJohan Hedberg events[2] |= 0x01; /* Synchronization Train Received */ 1654d62e6d67SJohan Hedberg events[2] |= 0x02; /* CSB Receive */ 1655d62e6d67SJohan Hedberg events[2] |= 0x04; /* CSB Timeout */ 1656d62e6d67SJohan Hedberg events[2] |= 0x08; /* Truncated Page Complete */ 1657d62e6d67SJohan Hedberg } 1658d62e6d67SJohan Hedberg 165940c59fcbSMarcel Holtmann /* Enable Authenticated Payload Timeout Expired event if supported */ 1660cd7ca0ecSMarcel Holtmann if (lmp_ping_capable(hdev) || hdev->le_features[0] & HCI_LE_PING) 166140c59fcbSMarcel Holtmann events[2] |= 0x80; 166240c59fcbSMarcel Holtmann 1663d62e6d67SJohan Hedberg hci_req_add(req, HCI_OP_SET_EVENT_MASK_PAGE_2, sizeof(events), events); 1664d62e6d67SJohan Hedberg } 1665d62e6d67SJohan Hedberg 166642c6b129SJohan Hedberg static void hci_init3_req(struct hci_request *req, unsigned long opt) 16672177bab5SJohan Hedberg { 166842c6b129SJohan Hedberg struct hci_dev *hdev = req->hdev; 1669d2c5d77fSJohan Hedberg u8 p; 167042c6b129SJohan Hedberg 16710da71f1bSMarcel Holtmann hci_setup_event_mask(req); 16720da71f1bSMarcel Holtmann 1673b8f4e068SGustavo Padovan /* Some Broadcom based Bluetooth controllers do not support the 1674b8f4e068SGustavo Padovan * Delete Stored Link Key command. They are clearly indicating its 1675b8f4e068SGustavo Padovan * absence in the bit mask of supported commands. 1676b8f4e068SGustavo Padovan * 1677b8f4e068SGustavo Padovan * Check the supported commands and only if the the command is marked 1678b8f4e068SGustavo Padovan * as supported send it. If not supported assume that the controller 1679b8f4e068SGustavo Padovan * does not have actual support for stored link keys which makes this 1680b8f4e068SGustavo Padovan * command redundant anyway. 1681f9f462faSMarcel Holtmann * 1682f9f462faSMarcel Holtmann * Some controllers indicate that they support handling deleting 1683f9f462faSMarcel Holtmann * stored link keys, but they don't. The quirk lets a driver 1684f9f462faSMarcel Holtmann * just disable this command. 1685b8f4e068SGustavo Padovan */ 1686f9f462faSMarcel Holtmann if (hdev->commands[6] & 0x80 && 1687f9f462faSMarcel Holtmann !test_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks)) { 168859f45d57SJohan Hedberg struct hci_cp_delete_stored_link_key cp; 168959f45d57SJohan Hedberg 169059f45d57SJohan Hedberg bacpy(&cp.bdaddr, BDADDR_ANY); 169159f45d57SJohan Hedberg cp.delete_all = 0x01; 169259f45d57SJohan Hedberg hci_req_add(req, HCI_OP_DELETE_STORED_LINK_KEY, 169359f45d57SJohan Hedberg sizeof(cp), &cp); 169459f45d57SJohan Hedberg } 169559f45d57SJohan Hedberg 16962177bab5SJohan Hedberg if (hdev->commands[5] & 0x10) 169742c6b129SJohan Hedberg hci_setup_link_policy(req); 16982177bab5SJohan Hedberg 16999193c6e8SAndre Guedes if (lmp_le_capable(hdev)) { 17009193c6e8SAndre Guedes u8 events[8]; 17019193c6e8SAndre Guedes 17029193c6e8SAndre Guedes memset(events, 0, sizeof(events)); 17034d6c705bSMarcel Holtmann events[0] = 0x0f; 17044d6c705bSMarcel Holtmann 17054d6c705bSMarcel Holtmann if (hdev->le_features[0] & HCI_LE_ENCRYPTION) 17064d6c705bSMarcel Holtmann events[0] |= 0x10; /* LE Long Term Key Request */ 1707662bc2e6SAndre Guedes 1708662bc2e6SAndre Guedes /* If controller supports the Connection Parameters Request 1709662bc2e6SAndre Guedes * Link Layer Procedure, enable the corresponding event. 1710662bc2e6SAndre Guedes */ 1711662bc2e6SAndre Guedes if (hdev->le_features[0] & HCI_LE_CONN_PARAM_REQ_PROC) 1712662bc2e6SAndre Guedes events[0] |= 0x20; /* LE Remote Connection 1713662bc2e6SAndre Guedes * Parameter Request 1714662bc2e6SAndre Guedes */ 1715662bc2e6SAndre Guedes 17169193c6e8SAndre Guedes hci_req_add(req, HCI_OP_LE_SET_EVENT_MASK, sizeof(events), 17179193c6e8SAndre Guedes events); 17189193c6e8SAndre Guedes 171915a49ccaSMarcel Holtmann if (hdev->commands[25] & 0x40) { 172015a49ccaSMarcel Holtmann /* Read LE Advertising Channel TX Power */ 172115a49ccaSMarcel Holtmann hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); 172215a49ccaSMarcel Holtmann } 172315a49ccaSMarcel Holtmann 172442c6b129SJohan Hedberg hci_set_le_support(req); 17259193c6e8SAndre Guedes } 1726d2c5d77fSJohan Hedberg 1727d2c5d77fSJohan Hedberg /* Read features beyond page 1 if available */ 1728d2c5d77fSJohan Hedberg for (p = 2; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) { 1729d2c5d77fSJohan Hedberg struct hci_cp_read_local_ext_features cp; 1730d2c5d77fSJohan Hedberg 1731d2c5d77fSJohan Hedberg cp.page = p; 1732d2c5d77fSJohan Hedberg hci_req_add(req, HCI_OP_READ_LOCAL_EXT_FEATURES, 1733d2c5d77fSJohan Hedberg sizeof(cp), &cp); 1734d2c5d77fSJohan Hedberg } 17352177bab5SJohan Hedberg } 17362177bab5SJohan Hedberg 17375d4e7e8dSJohan Hedberg static void hci_init4_req(struct hci_request *req, unsigned long opt) 17385d4e7e8dSJohan Hedberg { 17395d4e7e8dSJohan Hedberg struct hci_dev *hdev = req->hdev; 17405d4e7e8dSJohan Hedberg 1741d62e6d67SJohan Hedberg /* Set event mask page 2 if the HCI command for it is supported */ 1742d62e6d67SJohan Hedberg if (hdev->commands[22] & 0x04) 1743d62e6d67SJohan Hedberg hci_set_event_mask_page_2(req); 1744d62e6d67SJohan Hedberg 1745109e3191SMarcel Holtmann /* Read local codec list if the HCI command is supported */ 1746109e3191SMarcel Holtmann if (hdev->commands[29] & 0x20) 1747109e3191SMarcel Holtmann hci_req_add(req, HCI_OP_READ_LOCAL_CODECS, 0, NULL); 1748109e3191SMarcel Holtmann 1749f4fe73edSMarcel Holtmann /* Get MWS transport configuration if the HCI command is supported */ 1750f4fe73edSMarcel Holtmann if (hdev->commands[30] & 0x08) 1751f4fe73edSMarcel Holtmann hci_req_add(req, HCI_OP_GET_MWS_TRANSPORT_CONFIG, 0, NULL); 1752f4fe73edSMarcel Holtmann 17535d4e7e8dSJohan Hedberg /* Check for Synchronization Train support */ 175453b834d2SMarcel Holtmann if (lmp_sync_train_capable(hdev)) 17555d4e7e8dSJohan Hedberg hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL); 1756a6d0d690SMarcel Holtmann 1757a6d0d690SMarcel Holtmann /* Enable Secure Connections if supported and configured */ 17585afeac14SMarcel Holtmann if ((lmp_sc_capable(hdev) || 1759111902f7SMarcel Holtmann test_bit(HCI_FORCE_SC, &hdev->dbg_flags)) && 1760a6d0d690SMarcel Holtmann test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) { 1761a6d0d690SMarcel Holtmann u8 support = 0x01; 1762a6d0d690SMarcel Holtmann hci_req_add(req, HCI_OP_WRITE_SC_SUPPORT, 1763a6d0d690SMarcel Holtmann sizeof(support), &support); 1764a6d0d690SMarcel Holtmann } 17655d4e7e8dSJohan Hedberg } 17665d4e7e8dSJohan Hedberg 17672177bab5SJohan Hedberg static int __hci_init(struct hci_dev *hdev) 17682177bab5SJohan Hedberg { 17692177bab5SJohan Hedberg int err; 17702177bab5SJohan Hedberg 17712177bab5SJohan Hedberg err = __hci_req_sync(hdev, hci_init1_req, 0, HCI_INIT_TIMEOUT); 17722177bab5SJohan Hedberg if (err < 0) 17732177bab5SJohan Hedberg return err; 17742177bab5SJohan Hedberg 17754b4148e9SMarcel Holtmann /* The Device Under Test (DUT) mode is special and available for 17764b4148e9SMarcel Holtmann * all controller types. So just create it early on. 17774b4148e9SMarcel Holtmann */ 17784b4148e9SMarcel Holtmann if (test_bit(HCI_SETUP, &hdev->dev_flags)) { 17794b4148e9SMarcel Holtmann debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev, 17804b4148e9SMarcel Holtmann &dut_mode_fops); 17814b4148e9SMarcel Holtmann } 17824b4148e9SMarcel Holtmann 17832177bab5SJohan Hedberg /* HCI_BREDR covers both single-mode LE, BR/EDR and dual-mode 17842177bab5SJohan Hedberg * BR/EDR/LE type controllers. AMP controllers only need the 17852177bab5SJohan Hedberg * first stage init. 17862177bab5SJohan Hedberg */ 17872177bab5SJohan Hedberg if (hdev->dev_type != HCI_BREDR) 17882177bab5SJohan Hedberg return 0; 17892177bab5SJohan Hedberg 17902177bab5SJohan Hedberg err = __hci_req_sync(hdev, hci_init2_req, 0, HCI_INIT_TIMEOUT); 17912177bab5SJohan Hedberg if (err < 0) 17922177bab5SJohan Hedberg return err; 17932177bab5SJohan Hedberg 17945d4e7e8dSJohan Hedberg err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT); 17955d4e7e8dSJohan Hedberg if (err < 0) 17965d4e7e8dSJohan Hedberg return err; 17975d4e7e8dSJohan Hedberg 1798baf27f6eSMarcel Holtmann err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT); 1799baf27f6eSMarcel Holtmann if (err < 0) 1800baf27f6eSMarcel Holtmann return err; 1801baf27f6eSMarcel Holtmann 1802baf27f6eSMarcel Holtmann /* Only create debugfs entries during the initial setup 1803baf27f6eSMarcel Holtmann * phase and not every time the controller gets powered on. 1804baf27f6eSMarcel Holtmann */ 1805baf27f6eSMarcel Holtmann if (!test_bit(HCI_SETUP, &hdev->dev_flags)) 1806baf27f6eSMarcel Holtmann return 0; 1807baf27f6eSMarcel Holtmann 1808dfb826a8SMarcel Holtmann debugfs_create_file("features", 0444, hdev->debugfs, hdev, 1809dfb826a8SMarcel Holtmann &features_fops); 1810ceeb3bc0SMarcel Holtmann debugfs_create_u16("manufacturer", 0444, hdev->debugfs, 1811ceeb3bc0SMarcel Holtmann &hdev->manufacturer); 1812ceeb3bc0SMarcel Holtmann debugfs_create_u8("hci_version", 0444, hdev->debugfs, &hdev->hci_ver); 1813ceeb3bc0SMarcel Holtmann debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev); 181470afe0b8SMarcel Holtmann debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev, 181570afe0b8SMarcel Holtmann &blacklist_fops); 18166659358eSJohan Hedberg debugfs_create_file("whitelist", 0444, hdev->debugfs, hdev, 18176659358eSJohan Hedberg &whitelist_fops); 181847219839SMarcel Holtmann debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops); 181947219839SMarcel Holtmann 182031ad1691SAndrzej Kaczmarek debugfs_create_file("conn_info_min_age", 0644, hdev->debugfs, hdev, 182131ad1691SAndrzej Kaczmarek &conn_info_min_age_fops); 182231ad1691SAndrzej Kaczmarek debugfs_create_file("conn_info_max_age", 0644, hdev->debugfs, hdev, 182331ad1691SAndrzej Kaczmarek &conn_info_max_age_fops); 182431ad1691SAndrzej Kaczmarek 1825baf27f6eSMarcel Holtmann if (lmp_bredr_capable(hdev)) { 1826baf27f6eSMarcel Holtmann debugfs_create_file("inquiry_cache", 0444, hdev->debugfs, 1827baf27f6eSMarcel Holtmann hdev, &inquiry_cache_fops); 182802d08d15SMarcel Holtmann debugfs_create_file("link_keys", 0400, hdev->debugfs, 182902d08d15SMarcel Holtmann hdev, &link_keys_fops); 1830babdbb3cSMarcel Holtmann debugfs_create_file("dev_class", 0444, hdev->debugfs, 1831babdbb3cSMarcel Holtmann hdev, &dev_class_fops); 1832041000b9SMarcel Holtmann debugfs_create_file("voice_setting", 0444, hdev->debugfs, 1833041000b9SMarcel Holtmann hdev, &voice_setting_fops); 1834baf27f6eSMarcel Holtmann } 1835baf27f6eSMarcel Holtmann 183606f5b778SMarcel Holtmann if (lmp_ssp_capable(hdev)) { 1837ebd1e33bSMarcel Holtmann debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs, 1838ebd1e33bSMarcel Holtmann hdev, &auto_accept_delay_fops); 18395afeac14SMarcel Holtmann debugfs_create_file("force_sc_support", 0644, hdev->debugfs, 18405afeac14SMarcel Holtmann hdev, &force_sc_support_fops); 1841134c2a89SMarcel Holtmann debugfs_create_file("sc_only_mode", 0444, hdev->debugfs, 1842134c2a89SMarcel Holtmann hdev, &sc_only_mode_fops); 184306f5b778SMarcel Holtmann } 1844ebd1e33bSMarcel Holtmann 18452bfa3531SMarcel Holtmann if (lmp_sniff_capable(hdev)) { 18462bfa3531SMarcel Holtmann debugfs_create_file("idle_timeout", 0644, hdev->debugfs, 18472bfa3531SMarcel Holtmann hdev, &idle_timeout_fops); 18482bfa3531SMarcel Holtmann debugfs_create_file("sniff_min_interval", 0644, hdev->debugfs, 18492bfa3531SMarcel Holtmann hdev, &sniff_min_interval_fops); 18502bfa3531SMarcel Holtmann debugfs_create_file("sniff_max_interval", 0644, hdev->debugfs, 18512bfa3531SMarcel Holtmann hdev, &sniff_max_interval_fops); 18522bfa3531SMarcel Holtmann } 18532bfa3531SMarcel Holtmann 1854d0f729b8SMarcel Holtmann if (lmp_le_capable(hdev)) { 1855ac345813SMarcel Holtmann debugfs_create_file("identity", 0400, hdev->debugfs, 1856ac345813SMarcel Holtmann hdev, &identity_fops); 1857ac345813SMarcel Holtmann debugfs_create_file("rpa_timeout", 0644, hdev->debugfs, 1858ac345813SMarcel Holtmann hdev, &rpa_timeout_fops); 18597a4cd51dSMarcel Holtmann debugfs_create_file("random_address", 0444, hdev->debugfs, 18607a4cd51dSMarcel Holtmann hdev, &random_address_fops); 1861e7b8fc92SMarcel Holtmann debugfs_create_file("static_address", 0444, hdev->debugfs, 1862e7b8fc92SMarcel Holtmann hdev, &static_address_fops); 1863b32bba6cSMarcel Holtmann 1864b32bba6cSMarcel Holtmann /* For controllers with a public address, provide a debug 1865b32bba6cSMarcel Holtmann * option to force the usage of the configured static 1866b32bba6cSMarcel Holtmann * address. By default the public address is used. 1867b32bba6cSMarcel Holtmann */ 1868b32bba6cSMarcel Holtmann if (bacmp(&hdev->bdaddr, BDADDR_ANY)) 1869b32bba6cSMarcel Holtmann debugfs_create_file("force_static_address", 0644, 1870b32bba6cSMarcel Holtmann hdev->debugfs, hdev, 1871b32bba6cSMarcel Holtmann &force_static_address_fops); 1872b32bba6cSMarcel Holtmann 1873b32bba6cSMarcel Holtmann debugfs_create_u8("white_list_size", 0444, hdev->debugfs, 1874b32bba6cSMarcel Holtmann &hdev->le_white_list_size); 1875d2ab0ac1SMarcel Holtmann debugfs_create_file("white_list", 0444, hdev->debugfs, hdev, 1876d2ab0ac1SMarcel Holtmann &white_list_fops); 18773698d704SMarcel Holtmann debugfs_create_file("identity_resolving_keys", 0400, 18783698d704SMarcel Holtmann hdev->debugfs, hdev, 18793698d704SMarcel Holtmann &identity_resolving_keys_fops); 18808f8625cdSMarcel Holtmann debugfs_create_file("long_term_keys", 0400, hdev->debugfs, 18818f8625cdSMarcel Holtmann hdev, &long_term_keys_fops); 18824e70c7e7SMarcel Holtmann debugfs_create_file("conn_min_interval", 0644, hdev->debugfs, 18834e70c7e7SMarcel Holtmann hdev, &conn_min_interval_fops); 18844e70c7e7SMarcel Holtmann debugfs_create_file("conn_max_interval", 0644, hdev->debugfs, 18854e70c7e7SMarcel Holtmann hdev, &conn_max_interval_fops); 1886816a93d1SMarcel Holtmann debugfs_create_file("conn_latency", 0644, hdev->debugfs, 1887816a93d1SMarcel Holtmann hdev, &conn_latency_fops); 1888f1649577SMarcel Holtmann debugfs_create_file("supervision_timeout", 0644, hdev->debugfs, 1889f1649577SMarcel Holtmann hdev, &supervision_timeout_fops); 18903f959d46SMarcel Holtmann debugfs_create_file("adv_channel_map", 0644, hdev->debugfs, 18913f959d46SMarcel Holtmann hdev, &adv_channel_map_fops); 1892729a1051SGeorg Lukas debugfs_create_file("adv_min_interval", 0644, hdev->debugfs, 1893729a1051SGeorg Lukas hdev, &adv_min_interval_fops); 1894729a1051SGeorg Lukas debugfs_create_file("adv_max_interval", 0644, hdev->debugfs, 1895729a1051SGeorg Lukas hdev, &adv_max_interval_fops); 18960b3c7d37SMarcel Holtmann debugfs_create_file("device_list", 0444, hdev->debugfs, hdev, 18970b3c7d37SMarcel Holtmann &device_list_fops); 1898b9a7a61eSLukasz Rymanowski debugfs_create_u16("discov_interleaved_timeout", 0644, 1899b9a7a61eSLukasz Rymanowski hdev->debugfs, 1900b9a7a61eSLukasz Rymanowski &hdev->discov_interleaved_timeout); 190154506918SJohan Hedberg 1902711eafe3SJohan Hedberg smp_register(hdev); 1903d0f729b8SMarcel Holtmann } 1904e7b8fc92SMarcel Holtmann 1905baf27f6eSMarcel Holtmann return 0; 19062177bab5SJohan Hedberg } 19072177bab5SJohan Hedberg 19080ebca7d6SMarcel Holtmann static void hci_init0_req(struct hci_request *req, unsigned long opt) 19090ebca7d6SMarcel Holtmann { 19100ebca7d6SMarcel Holtmann struct hci_dev *hdev = req->hdev; 19110ebca7d6SMarcel Holtmann 19120ebca7d6SMarcel Holtmann BT_DBG("%s %ld", hdev->name, opt); 19130ebca7d6SMarcel Holtmann 19140ebca7d6SMarcel Holtmann /* Reset */ 19150ebca7d6SMarcel Holtmann if (!test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) 19160ebca7d6SMarcel Holtmann hci_reset_req(req, 0); 19170ebca7d6SMarcel Holtmann 19180ebca7d6SMarcel Holtmann /* Read Local Version */ 19190ebca7d6SMarcel Holtmann hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); 19200ebca7d6SMarcel Holtmann 19210ebca7d6SMarcel Holtmann /* Read BD Address */ 19220ebca7d6SMarcel Holtmann if (hdev->set_bdaddr) 19230ebca7d6SMarcel Holtmann hci_req_add(req, HCI_OP_READ_BD_ADDR, 0, NULL); 19240ebca7d6SMarcel Holtmann } 19250ebca7d6SMarcel Holtmann 19260ebca7d6SMarcel Holtmann static int __hci_unconf_init(struct hci_dev *hdev) 19270ebca7d6SMarcel Holtmann { 19280ebca7d6SMarcel Holtmann int err; 19290ebca7d6SMarcel Holtmann 1930cc78b44bSMarcel Holtmann if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) 1931cc78b44bSMarcel Holtmann return 0; 1932cc78b44bSMarcel Holtmann 19330ebca7d6SMarcel Holtmann err = __hci_req_sync(hdev, hci_init0_req, 0, HCI_INIT_TIMEOUT); 19340ebca7d6SMarcel Holtmann if (err < 0) 19350ebca7d6SMarcel Holtmann return err; 19360ebca7d6SMarcel Holtmann 19370ebca7d6SMarcel Holtmann return 0; 19380ebca7d6SMarcel Holtmann } 19390ebca7d6SMarcel Holtmann 194042c6b129SJohan Hedberg static void hci_scan_req(struct hci_request *req, unsigned long opt) 19411da177e4SLinus Torvalds { 19421da177e4SLinus Torvalds __u8 scan = opt; 19431da177e4SLinus Torvalds 194442c6b129SJohan Hedberg BT_DBG("%s %x", req->hdev->name, scan); 19451da177e4SLinus Torvalds 19461da177e4SLinus Torvalds /* Inquiry and Page scans */ 194742c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); 19481da177e4SLinus Torvalds } 19491da177e4SLinus Torvalds 195042c6b129SJohan Hedberg static void hci_auth_req(struct hci_request *req, unsigned long opt) 19511da177e4SLinus Torvalds { 19521da177e4SLinus Torvalds __u8 auth = opt; 19531da177e4SLinus Torvalds 195442c6b129SJohan Hedberg BT_DBG("%s %x", req->hdev->name, auth); 19551da177e4SLinus Torvalds 19561da177e4SLinus Torvalds /* Authentication */ 195742c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_AUTH_ENABLE, 1, &auth); 19581da177e4SLinus Torvalds } 19591da177e4SLinus Torvalds 196042c6b129SJohan Hedberg static void hci_encrypt_req(struct hci_request *req, unsigned long opt) 19611da177e4SLinus Torvalds { 19621da177e4SLinus Torvalds __u8 encrypt = opt; 19631da177e4SLinus Torvalds 196442c6b129SJohan Hedberg BT_DBG("%s %x", req->hdev->name, encrypt); 19651da177e4SLinus Torvalds 1966e4e8e37cSMarcel Holtmann /* Encryption */ 196742c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_ENCRYPT_MODE, 1, &encrypt); 19681da177e4SLinus Torvalds } 19691da177e4SLinus Torvalds 197042c6b129SJohan Hedberg static void hci_linkpol_req(struct hci_request *req, unsigned long opt) 1971e4e8e37cSMarcel Holtmann { 1972e4e8e37cSMarcel Holtmann __le16 policy = cpu_to_le16(opt); 1973e4e8e37cSMarcel Holtmann 197442c6b129SJohan Hedberg BT_DBG("%s %x", req->hdev->name, policy); 1975e4e8e37cSMarcel Holtmann 1976e4e8e37cSMarcel Holtmann /* Default link policy */ 197742c6b129SJohan Hedberg hci_req_add(req, HCI_OP_WRITE_DEF_LINK_POLICY, 2, &policy); 1978e4e8e37cSMarcel Holtmann } 1979e4e8e37cSMarcel Holtmann 19801da177e4SLinus Torvalds /* Get HCI device by index. 19811da177e4SLinus Torvalds * Device is held on return. */ 19821da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index) 19831da177e4SLinus Torvalds { 19848035ded4SLuiz Augusto von Dentz struct hci_dev *hdev = NULL, *d; 19851da177e4SLinus Torvalds 19861da177e4SLinus Torvalds BT_DBG("%d", index); 19871da177e4SLinus Torvalds 19881da177e4SLinus Torvalds if (index < 0) 19891da177e4SLinus Torvalds return NULL; 19901da177e4SLinus Torvalds 19911da177e4SLinus Torvalds read_lock(&hci_dev_list_lock); 19928035ded4SLuiz Augusto von Dentz list_for_each_entry(d, &hci_dev_list, list) { 19931da177e4SLinus Torvalds if (d->id == index) { 19941da177e4SLinus Torvalds hdev = hci_dev_hold(d); 19951da177e4SLinus Torvalds break; 19961da177e4SLinus Torvalds } 19971da177e4SLinus Torvalds } 19981da177e4SLinus Torvalds read_unlock(&hci_dev_list_lock); 19991da177e4SLinus Torvalds return hdev; 20001da177e4SLinus Torvalds } 20011da177e4SLinus Torvalds 20021da177e4SLinus Torvalds /* ---- Inquiry support ---- */ 2003ff9ef578SJohan Hedberg 200430dc78e1SJohan Hedberg bool hci_discovery_active(struct hci_dev *hdev) 200530dc78e1SJohan Hedberg { 200630dc78e1SJohan Hedberg struct discovery_state *discov = &hdev->discovery; 200730dc78e1SJohan Hedberg 20086fbe195dSAndre Guedes switch (discov->state) { 2009343f935bSAndre Guedes case DISCOVERY_FINDING: 20106fbe195dSAndre Guedes case DISCOVERY_RESOLVING: 201130dc78e1SJohan Hedberg return true; 201230dc78e1SJohan Hedberg 20136fbe195dSAndre Guedes default: 201430dc78e1SJohan Hedberg return false; 201530dc78e1SJohan Hedberg } 20166fbe195dSAndre Guedes } 201730dc78e1SJohan Hedberg 2018ff9ef578SJohan Hedberg void hci_discovery_set_state(struct hci_dev *hdev, int state) 2019ff9ef578SJohan Hedberg { 2020bb3e0a33SJohan Hedberg int old_state = hdev->discovery.state; 2021bb3e0a33SJohan Hedberg 2022ff9ef578SJohan Hedberg BT_DBG("%s state %u -> %u", hdev->name, hdev->discovery.state, state); 2023ff9ef578SJohan Hedberg 2024bb3e0a33SJohan Hedberg if (old_state == state) 2025ff9ef578SJohan Hedberg return; 2026ff9ef578SJohan Hedberg 2027bb3e0a33SJohan Hedberg hdev->discovery.state = state; 2028bb3e0a33SJohan Hedberg 2029ff9ef578SJohan Hedberg switch (state) { 2030ff9ef578SJohan Hedberg case DISCOVERY_STOPPED: 2031c54c3860SAndre Guedes hci_update_background_scan(hdev); 2032c54c3860SAndre Guedes 2033bb3e0a33SJohan Hedberg if (old_state != DISCOVERY_STARTING) 2034ff9ef578SJohan Hedberg mgmt_discovering(hdev, 0); 2035ff9ef578SJohan Hedberg break; 2036ff9ef578SJohan Hedberg case DISCOVERY_STARTING: 2037ff9ef578SJohan Hedberg break; 2038343f935bSAndre Guedes case DISCOVERY_FINDING: 2039ff9ef578SJohan Hedberg mgmt_discovering(hdev, 1); 2040ff9ef578SJohan Hedberg break; 204130dc78e1SJohan Hedberg case DISCOVERY_RESOLVING: 204230dc78e1SJohan Hedberg break; 2043ff9ef578SJohan Hedberg case DISCOVERY_STOPPING: 2044ff9ef578SJohan Hedberg break; 2045ff9ef578SJohan Hedberg } 2046ff9ef578SJohan Hedberg } 2047ff9ef578SJohan Hedberg 20481f9b9a5dSAndre Guedes void hci_inquiry_cache_flush(struct hci_dev *hdev) 20491da177e4SLinus Torvalds { 205030883512SJohan Hedberg struct discovery_state *cache = &hdev->discovery; 2051b57c1a56SJohan Hedberg struct inquiry_entry *p, *n; 20521da177e4SLinus Torvalds 2053561aafbcSJohan Hedberg list_for_each_entry_safe(p, n, &cache->all, all) { 2054561aafbcSJohan Hedberg list_del(&p->all); 2055b57c1a56SJohan Hedberg kfree(p); 20561da177e4SLinus Torvalds } 2057561aafbcSJohan Hedberg 2058561aafbcSJohan Hedberg INIT_LIST_HEAD(&cache->unknown); 2059561aafbcSJohan Hedberg INIT_LIST_HEAD(&cache->resolve); 20601da177e4SLinus Torvalds } 20611da177e4SLinus Torvalds 2062a8c5fb1aSGustavo Padovan struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 2063a8c5fb1aSGustavo Padovan bdaddr_t *bdaddr) 20641da177e4SLinus Torvalds { 206530883512SJohan Hedberg struct discovery_state *cache = &hdev->discovery; 20661da177e4SLinus Torvalds struct inquiry_entry *e; 20671da177e4SLinus Torvalds 20686ed93dc6SAndrei Emeltchenko BT_DBG("cache %p, %pMR", cache, bdaddr); 20691da177e4SLinus Torvalds 2070561aafbcSJohan Hedberg list_for_each_entry(e, &cache->all, all) { 20711da177e4SLinus Torvalds if (!bacmp(&e->data.bdaddr, bdaddr)) 20721da177e4SLinus Torvalds return e; 20731da177e4SLinus Torvalds } 20741da177e4SLinus Torvalds 2075b57c1a56SJohan Hedberg return NULL; 2076b57c1a56SJohan Hedberg } 2077b57c1a56SJohan Hedberg 2078561aafbcSJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 2079561aafbcSJohan Hedberg bdaddr_t *bdaddr) 2080561aafbcSJohan Hedberg { 208130883512SJohan Hedberg struct discovery_state *cache = &hdev->discovery; 2082561aafbcSJohan Hedberg struct inquiry_entry *e; 2083561aafbcSJohan Hedberg 20846ed93dc6SAndrei Emeltchenko BT_DBG("cache %p, %pMR", cache, bdaddr); 2085561aafbcSJohan Hedberg 2086561aafbcSJohan Hedberg list_for_each_entry(e, &cache->unknown, list) { 2087561aafbcSJohan Hedberg if (!bacmp(&e->data.bdaddr, bdaddr)) 2088561aafbcSJohan Hedberg return e; 2089561aafbcSJohan Hedberg } 2090561aafbcSJohan Hedberg 2091561aafbcSJohan Hedberg return NULL; 2092561aafbcSJohan Hedberg } 2093561aafbcSJohan Hedberg 209430dc78e1SJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 209530dc78e1SJohan Hedberg bdaddr_t *bdaddr, 209630dc78e1SJohan Hedberg int state) 209730dc78e1SJohan Hedberg { 209830dc78e1SJohan Hedberg struct discovery_state *cache = &hdev->discovery; 209930dc78e1SJohan Hedberg struct inquiry_entry *e; 210030dc78e1SJohan Hedberg 21016ed93dc6SAndrei Emeltchenko BT_DBG("cache %p bdaddr %pMR state %d", cache, bdaddr, state); 210230dc78e1SJohan Hedberg 210330dc78e1SJohan Hedberg list_for_each_entry(e, &cache->resolve, list) { 210430dc78e1SJohan Hedberg if (!bacmp(bdaddr, BDADDR_ANY) && e->name_state == state) 210530dc78e1SJohan Hedberg return e; 210630dc78e1SJohan Hedberg if (!bacmp(&e->data.bdaddr, bdaddr)) 210730dc78e1SJohan Hedberg return e; 210830dc78e1SJohan Hedberg } 210930dc78e1SJohan Hedberg 211030dc78e1SJohan Hedberg return NULL; 211130dc78e1SJohan Hedberg } 211230dc78e1SJohan Hedberg 2113a3d4e20aSJohan Hedberg void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 2114a3d4e20aSJohan Hedberg struct inquiry_entry *ie) 2115a3d4e20aSJohan Hedberg { 2116a3d4e20aSJohan Hedberg struct discovery_state *cache = &hdev->discovery; 2117a3d4e20aSJohan Hedberg struct list_head *pos = &cache->resolve; 2118a3d4e20aSJohan Hedberg struct inquiry_entry *p; 2119a3d4e20aSJohan Hedberg 2120a3d4e20aSJohan Hedberg list_del(&ie->list); 2121a3d4e20aSJohan Hedberg 2122a3d4e20aSJohan Hedberg list_for_each_entry(p, &cache->resolve, list) { 2123a3d4e20aSJohan Hedberg if (p->name_state != NAME_PENDING && 2124a3d4e20aSJohan Hedberg abs(p->data.rssi) >= abs(ie->data.rssi)) 2125a3d4e20aSJohan Hedberg break; 2126a3d4e20aSJohan Hedberg pos = &p->list; 2127a3d4e20aSJohan Hedberg } 2128a3d4e20aSJohan Hedberg 2129a3d4e20aSJohan Hedberg list_add(&ie->list, pos); 2130a3d4e20aSJohan Hedberg } 2131a3d4e20aSJohan Hedberg 2132af58925cSMarcel Holtmann u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 2133af58925cSMarcel Holtmann bool name_known) 21341da177e4SLinus Torvalds { 213530883512SJohan Hedberg struct discovery_state *cache = &hdev->discovery; 213670f23020SAndrei Emeltchenko struct inquiry_entry *ie; 2137af58925cSMarcel Holtmann u32 flags = 0; 21381da177e4SLinus Torvalds 21396ed93dc6SAndrei Emeltchenko BT_DBG("cache %p, %pMR", cache, &data->bdaddr); 21401da177e4SLinus Torvalds 21412b2fec4dSSzymon Janc hci_remove_remote_oob_data(hdev, &data->bdaddr); 21422b2fec4dSSzymon Janc 2143af58925cSMarcel Holtmann if (!data->ssp_mode) 2144af58925cSMarcel Holtmann flags |= MGMT_DEV_FOUND_LEGACY_PAIRING; 2145388fc8faSJohan Hedberg 214670f23020SAndrei Emeltchenko ie = hci_inquiry_cache_lookup(hdev, &data->bdaddr); 2147a3d4e20aSJohan Hedberg if (ie) { 2148af58925cSMarcel Holtmann if (!ie->data.ssp_mode) 2149af58925cSMarcel Holtmann flags |= MGMT_DEV_FOUND_LEGACY_PAIRING; 2150388fc8faSJohan Hedberg 2151a3d4e20aSJohan Hedberg if (ie->name_state == NAME_NEEDED && 2152a3d4e20aSJohan Hedberg data->rssi != ie->data.rssi) { 2153a3d4e20aSJohan Hedberg ie->data.rssi = data->rssi; 2154a3d4e20aSJohan Hedberg hci_inquiry_cache_update_resolve(hdev, ie); 2155a3d4e20aSJohan Hedberg } 2156a3d4e20aSJohan Hedberg 2157561aafbcSJohan Hedberg goto update; 2158a3d4e20aSJohan Hedberg } 2159561aafbcSJohan Hedberg 21601da177e4SLinus Torvalds /* Entry not in the cache. Add new one. */ 216127f70f3eSJohan Hedberg ie = kzalloc(sizeof(*ie), GFP_KERNEL); 2162af58925cSMarcel Holtmann if (!ie) { 2163af58925cSMarcel Holtmann flags |= MGMT_DEV_FOUND_CONFIRM_NAME; 2164af58925cSMarcel Holtmann goto done; 2165af58925cSMarcel Holtmann } 216670f23020SAndrei Emeltchenko 2167561aafbcSJohan Hedberg list_add(&ie->all, &cache->all); 2168561aafbcSJohan Hedberg 2169561aafbcSJohan Hedberg if (name_known) { 2170561aafbcSJohan Hedberg ie->name_state = NAME_KNOWN; 2171561aafbcSJohan Hedberg } else { 2172561aafbcSJohan Hedberg ie->name_state = NAME_NOT_KNOWN; 2173561aafbcSJohan Hedberg list_add(&ie->list, &cache->unknown); 2174561aafbcSJohan Hedberg } 2175561aafbcSJohan Hedberg 2176561aafbcSJohan Hedberg update: 2177561aafbcSJohan Hedberg if (name_known && ie->name_state != NAME_KNOWN && 2178561aafbcSJohan Hedberg ie->name_state != NAME_PENDING) { 2179561aafbcSJohan Hedberg ie->name_state = NAME_KNOWN; 2180561aafbcSJohan Hedberg list_del(&ie->list); 21811da177e4SLinus Torvalds } 21821da177e4SLinus Torvalds 218370f23020SAndrei Emeltchenko memcpy(&ie->data, data, sizeof(*data)); 218470f23020SAndrei Emeltchenko ie->timestamp = jiffies; 21851da177e4SLinus Torvalds cache->timestamp = jiffies; 21863175405bSJohan Hedberg 21873175405bSJohan Hedberg if (ie->name_state == NAME_NOT_KNOWN) 2188af58925cSMarcel Holtmann flags |= MGMT_DEV_FOUND_CONFIRM_NAME; 21893175405bSJohan Hedberg 2190af58925cSMarcel Holtmann done: 2191af58925cSMarcel Holtmann return flags; 21921da177e4SLinus Torvalds } 21931da177e4SLinus Torvalds 21941da177e4SLinus Torvalds static int inquiry_cache_dump(struct hci_dev *hdev, int num, __u8 *buf) 21951da177e4SLinus Torvalds { 219630883512SJohan Hedberg struct discovery_state *cache = &hdev->discovery; 21971da177e4SLinus Torvalds struct inquiry_info *info = (struct inquiry_info *) buf; 21981da177e4SLinus Torvalds struct inquiry_entry *e; 21991da177e4SLinus Torvalds int copied = 0; 22001da177e4SLinus Torvalds 2201561aafbcSJohan Hedberg list_for_each_entry(e, &cache->all, all) { 22021da177e4SLinus Torvalds struct inquiry_data *data = &e->data; 2203b57c1a56SJohan Hedberg 2204b57c1a56SJohan Hedberg if (copied >= num) 2205b57c1a56SJohan Hedberg break; 2206b57c1a56SJohan Hedberg 22071da177e4SLinus Torvalds bacpy(&info->bdaddr, &data->bdaddr); 22081da177e4SLinus Torvalds info->pscan_rep_mode = data->pscan_rep_mode; 22091da177e4SLinus Torvalds info->pscan_period_mode = data->pscan_period_mode; 22101da177e4SLinus Torvalds info->pscan_mode = data->pscan_mode; 22111da177e4SLinus Torvalds memcpy(info->dev_class, data->dev_class, 3); 22121da177e4SLinus Torvalds info->clock_offset = data->clock_offset; 2213b57c1a56SJohan Hedberg 22141da177e4SLinus Torvalds info++; 2215b57c1a56SJohan Hedberg copied++; 22161da177e4SLinus Torvalds } 22171da177e4SLinus Torvalds 22181da177e4SLinus Torvalds BT_DBG("cache %p, copied %d", cache, copied); 22191da177e4SLinus Torvalds return copied; 22201da177e4SLinus Torvalds } 22211da177e4SLinus Torvalds 222242c6b129SJohan Hedberg static void hci_inq_req(struct hci_request *req, unsigned long opt) 22231da177e4SLinus Torvalds { 22241da177e4SLinus Torvalds struct hci_inquiry_req *ir = (struct hci_inquiry_req *) opt; 222542c6b129SJohan Hedberg struct hci_dev *hdev = req->hdev; 22261da177e4SLinus Torvalds struct hci_cp_inquiry cp; 22271da177e4SLinus Torvalds 22281da177e4SLinus Torvalds BT_DBG("%s", hdev->name); 22291da177e4SLinus Torvalds 22301da177e4SLinus Torvalds if (test_bit(HCI_INQUIRY, &hdev->flags)) 22311da177e4SLinus Torvalds return; 22321da177e4SLinus Torvalds 22331da177e4SLinus Torvalds /* Start Inquiry */ 22341da177e4SLinus Torvalds memcpy(&cp.lap, &ir->lap, 3); 22351da177e4SLinus Torvalds cp.length = ir->length; 22361da177e4SLinus Torvalds cp.num_rsp = ir->num_rsp; 223742c6b129SJohan Hedberg hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp); 22381da177e4SLinus Torvalds } 22391da177e4SLinus Torvalds 22401da177e4SLinus Torvalds int hci_inquiry(void __user *arg) 22411da177e4SLinus Torvalds { 22421da177e4SLinus Torvalds __u8 __user *ptr = arg; 22431da177e4SLinus Torvalds struct hci_inquiry_req ir; 22441da177e4SLinus Torvalds struct hci_dev *hdev; 22451da177e4SLinus Torvalds int err = 0, do_inquiry = 0, max_rsp; 22461da177e4SLinus Torvalds long timeo; 22471da177e4SLinus Torvalds __u8 *buf; 22481da177e4SLinus Torvalds 22491da177e4SLinus Torvalds if (copy_from_user(&ir, ptr, sizeof(ir))) 22501da177e4SLinus Torvalds return -EFAULT; 22511da177e4SLinus Torvalds 22525a08ecceSAndrei Emeltchenko hdev = hci_dev_get(ir.dev_id); 22535a08ecceSAndrei Emeltchenko if (!hdev) 22541da177e4SLinus Torvalds return -ENODEV; 22551da177e4SLinus Torvalds 22560736cfa8SMarcel Holtmann if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 22570736cfa8SMarcel Holtmann err = -EBUSY; 22580736cfa8SMarcel Holtmann goto done; 22590736cfa8SMarcel Holtmann } 22600736cfa8SMarcel Holtmann 22614a964404SMarcel Holtmann if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { 2262fee746b0SMarcel Holtmann err = -EOPNOTSUPP; 2263fee746b0SMarcel Holtmann goto done; 2264fee746b0SMarcel Holtmann } 2265fee746b0SMarcel Holtmann 22665b69bef5SMarcel Holtmann if (hdev->dev_type != HCI_BREDR) { 22675b69bef5SMarcel Holtmann err = -EOPNOTSUPP; 22685b69bef5SMarcel Holtmann goto done; 22695b69bef5SMarcel Holtmann } 22705b69bef5SMarcel Holtmann 227156f87901SJohan Hedberg if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { 227256f87901SJohan Hedberg err = -EOPNOTSUPP; 227356f87901SJohan Hedberg goto done; 227456f87901SJohan Hedberg } 227556f87901SJohan Hedberg 227609fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 22771da177e4SLinus Torvalds if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX || 2278a8c5fb1aSGustavo Padovan inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) { 22791f9b9a5dSAndre Guedes hci_inquiry_cache_flush(hdev); 22801da177e4SLinus Torvalds do_inquiry = 1; 22811da177e4SLinus Torvalds } 228209fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 22831da177e4SLinus Torvalds 228404837f64SMarcel Holtmann timeo = ir.length * msecs_to_jiffies(2000); 228570f23020SAndrei Emeltchenko 228670f23020SAndrei Emeltchenko if (do_inquiry) { 228701178cd4SJohan Hedberg err = hci_req_sync(hdev, hci_inq_req, (unsigned long) &ir, 228801178cd4SJohan Hedberg timeo); 228970f23020SAndrei Emeltchenko if (err < 0) 22901da177e4SLinus Torvalds goto done; 22913e13fa1eSAndre Guedes 22923e13fa1eSAndre Guedes /* Wait until Inquiry procedure finishes (HCI_INQUIRY flag is 22933e13fa1eSAndre Guedes * cleared). If it is interrupted by a signal, return -EINTR. 22943e13fa1eSAndre Guedes */ 229574316201SNeilBrown if (wait_on_bit(&hdev->flags, HCI_INQUIRY, 22963e13fa1eSAndre Guedes TASK_INTERRUPTIBLE)) 22973e13fa1eSAndre Guedes return -EINTR; 229870f23020SAndrei Emeltchenko } 22991da177e4SLinus Torvalds 23008fc9ced3SGustavo Padovan /* for unlimited number of responses we will use buffer with 23018fc9ced3SGustavo Padovan * 255 entries 23028fc9ced3SGustavo Padovan */ 23031da177e4SLinus Torvalds max_rsp = (ir.num_rsp == 0) ? 255 : ir.num_rsp; 23041da177e4SLinus Torvalds 23051da177e4SLinus Torvalds /* cache_dump can't sleep. Therefore we allocate temp buffer and then 23061da177e4SLinus Torvalds * copy it to the user space. 23071da177e4SLinus Torvalds */ 230870f23020SAndrei Emeltchenko buf = kmalloc(sizeof(struct inquiry_info) * max_rsp, GFP_KERNEL); 230970f23020SAndrei Emeltchenko if (!buf) { 23101da177e4SLinus Torvalds err = -ENOMEM; 23111da177e4SLinus Torvalds goto done; 23121da177e4SLinus Torvalds } 23131da177e4SLinus Torvalds 231409fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 23151da177e4SLinus Torvalds ir.num_rsp = inquiry_cache_dump(hdev, max_rsp, buf); 231609fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 23171da177e4SLinus Torvalds 23181da177e4SLinus Torvalds BT_DBG("num_rsp %d", ir.num_rsp); 23191da177e4SLinus Torvalds 23201da177e4SLinus Torvalds if (!copy_to_user(ptr, &ir, sizeof(ir))) { 23211da177e4SLinus Torvalds ptr += sizeof(ir); 23221da177e4SLinus Torvalds if (copy_to_user(ptr, buf, sizeof(struct inquiry_info) * 23231da177e4SLinus Torvalds ir.num_rsp)) 23241da177e4SLinus Torvalds err = -EFAULT; 23251da177e4SLinus Torvalds } else 23261da177e4SLinus Torvalds err = -EFAULT; 23271da177e4SLinus Torvalds 23281da177e4SLinus Torvalds kfree(buf); 23291da177e4SLinus Torvalds 23301da177e4SLinus Torvalds done: 23311da177e4SLinus Torvalds hci_dev_put(hdev); 23321da177e4SLinus Torvalds return err; 23331da177e4SLinus Torvalds } 23341da177e4SLinus Torvalds 2335cbed0ca1SJohan Hedberg static int hci_dev_do_open(struct hci_dev *hdev) 23361da177e4SLinus Torvalds { 23371da177e4SLinus Torvalds int ret = 0; 23381da177e4SLinus Torvalds 23391da177e4SLinus Torvalds BT_DBG("%s %p", hdev->name, hdev); 23401da177e4SLinus Torvalds 23411da177e4SLinus Torvalds hci_req_lock(hdev); 23421da177e4SLinus Torvalds 234394324962SJohan Hovold if (test_bit(HCI_UNREGISTER, &hdev->dev_flags)) { 234494324962SJohan Hovold ret = -ENODEV; 234594324962SJohan Hovold goto done; 234694324962SJohan Hovold } 234794324962SJohan Hovold 2348d603b76bSMarcel Holtmann if (!test_bit(HCI_SETUP, &hdev->dev_flags) && 2349d603b76bSMarcel Holtmann !test_bit(HCI_CONFIG, &hdev->dev_flags)) { 2350a5c8f270SMarcel Holtmann /* Check for rfkill but allow the HCI setup stage to 2351a5c8f270SMarcel Holtmann * proceed (which in itself doesn't cause any RF activity). 2352bf543036SJohan Hedberg */ 2353a5c8f270SMarcel Holtmann if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) { 2354611b30f7SMarcel Holtmann ret = -ERFKILL; 2355611b30f7SMarcel Holtmann goto done; 2356611b30f7SMarcel Holtmann } 2357611b30f7SMarcel Holtmann 2358a5c8f270SMarcel Holtmann /* Check for valid public address or a configured static 2359a5c8f270SMarcel Holtmann * random adddress, but let the HCI setup proceed to 2360a5c8f270SMarcel Holtmann * be able to determine if there is a public address 2361a5c8f270SMarcel Holtmann * or not. 2362a5c8f270SMarcel Holtmann * 2363c6beca0eSMarcel Holtmann * In case of user channel usage, it is not important 2364c6beca0eSMarcel Holtmann * if a public address or static random address is 2365c6beca0eSMarcel Holtmann * available. 2366c6beca0eSMarcel Holtmann * 2367a5c8f270SMarcel Holtmann * This check is only valid for BR/EDR controllers 2368a5c8f270SMarcel Holtmann * since AMP controllers do not have an address. 2369a5c8f270SMarcel Holtmann */ 2370c6beca0eSMarcel Holtmann if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && 2371c6beca0eSMarcel Holtmann hdev->dev_type == HCI_BREDR && 2372a5c8f270SMarcel Holtmann !bacmp(&hdev->bdaddr, BDADDR_ANY) && 2373a5c8f270SMarcel Holtmann !bacmp(&hdev->static_addr, BDADDR_ANY)) { 2374a5c8f270SMarcel Holtmann ret = -EADDRNOTAVAIL; 2375a5c8f270SMarcel Holtmann goto done; 2376a5c8f270SMarcel Holtmann } 2377a5c8f270SMarcel Holtmann } 2378a5c8f270SMarcel Holtmann 23791da177e4SLinus Torvalds if (test_bit(HCI_UP, &hdev->flags)) { 23801da177e4SLinus Torvalds ret = -EALREADY; 23811da177e4SLinus Torvalds goto done; 23821da177e4SLinus Torvalds } 23831da177e4SLinus Torvalds 23841da177e4SLinus Torvalds if (hdev->open(hdev)) { 23851da177e4SLinus Torvalds ret = -EIO; 23861da177e4SLinus Torvalds goto done; 23871da177e4SLinus Torvalds } 23881da177e4SLinus Torvalds 23891da177e4SLinus Torvalds atomic_set(&hdev->cmd_cnt, 1); 23901da177e4SLinus Torvalds set_bit(HCI_INIT, &hdev->flags); 2391f41c70c4SMarcel Holtmann 2392af202f84SMarcel Holtmann if (test_bit(HCI_SETUP, &hdev->dev_flags)) { 2393af202f84SMarcel Holtmann if (hdev->setup) 2394f41c70c4SMarcel Holtmann ret = hdev->setup(hdev); 2395f41c70c4SMarcel Holtmann 2396af202f84SMarcel Holtmann /* The transport driver can set these quirks before 2397af202f84SMarcel Holtmann * creating the HCI device or in its setup callback. 2398af202f84SMarcel Holtmann * 2399af202f84SMarcel Holtmann * In case any of them is set, the controller has to 2400af202f84SMarcel Holtmann * start up as unconfigured. 2401af202f84SMarcel Holtmann */ 2402eb1904f4SMarcel Holtmann if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) || 2403eb1904f4SMarcel Holtmann test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks)) 240489bc22d2SMarcel Holtmann set_bit(HCI_UNCONFIGURED, &hdev->dev_flags); 2405f41c70c4SMarcel Holtmann 24060ebca7d6SMarcel Holtmann /* For an unconfigured controller it is required to 24070ebca7d6SMarcel Holtmann * read at least the version information provided by 24080ebca7d6SMarcel Holtmann * the Read Local Version Information command. 24090ebca7d6SMarcel Holtmann * 24100ebca7d6SMarcel Holtmann * If the set_bdaddr driver callback is provided, then 24110ebca7d6SMarcel Holtmann * also the original Bluetooth public device address 24120ebca7d6SMarcel Holtmann * will be read using the Read BD Address command. 24130ebca7d6SMarcel Holtmann */ 24140ebca7d6SMarcel Holtmann if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) 24150ebca7d6SMarcel Holtmann ret = __hci_unconf_init(hdev); 241689bc22d2SMarcel Holtmann } 241789bc22d2SMarcel Holtmann 24189713c17bSMarcel Holtmann if (test_bit(HCI_CONFIG, &hdev->dev_flags)) { 24199713c17bSMarcel Holtmann /* If public address change is configured, ensure that 24209713c17bSMarcel Holtmann * the address gets programmed. If the driver does not 24219713c17bSMarcel Holtmann * support changing the public address, fail the power 24229713c17bSMarcel Holtmann * on procedure. 242324c457e2SMarcel Holtmann */ 24249713c17bSMarcel Holtmann if (bacmp(&hdev->public_addr, BDADDR_ANY) && 24259713c17bSMarcel Holtmann hdev->set_bdaddr) 242624c457e2SMarcel Holtmann ret = hdev->set_bdaddr(hdev, &hdev->public_addr); 242724c457e2SMarcel Holtmann else 242824c457e2SMarcel Holtmann ret = -EADDRNOTAVAIL; 242924c457e2SMarcel Holtmann } 243024c457e2SMarcel Holtmann 2431f41c70c4SMarcel Holtmann if (!ret) { 24324a964404SMarcel Holtmann if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && 24330736cfa8SMarcel Holtmann !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) 24342177bab5SJohan Hedberg ret = __hci_init(hdev); 24351da177e4SLinus Torvalds } 24361da177e4SLinus Torvalds 2437f41c70c4SMarcel Holtmann clear_bit(HCI_INIT, &hdev->flags); 2438f41c70c4SMarcel Holtmann 24391da177e4SLinus Torvalds if (!ret) { 24401da177e4SLinus Torvalds hci_dev_hold(hdev); 2441d6bfd59cSJohan Hedberg set_bit(HCI_RPA_EXPIRED, &hdev->dev_flags); 24421da177e4SLinus Torvalds set_bit(HCI_UP, &hdev->flags); 24431da177e4SLinus Torvalds hci_notify(hdev, HCI_DEV_UP); 2444bb4b2a9aSAndrei Emeltchenko if (!test_bit(HCI_SETUP, &hdev->dev_flags) && 2445d603b76bSMarcel Holtmann !test_bit(HCI_CONFIG, &hdev->dev_flags) && 24464a964404SMarcel Holtmann !test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && 24470736cfa8SMarcel Holtmann !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && 24481514b892SMarcel Holtmann hdev->dev_type == HCI_BREDR) { 244909fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 2450744cf19eSJohan Hedberg mgmt_powered(hdev, 1); 245109fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 245256e5cb86SJohan Hedberg } 24531da177e4SLinus Torvalds } else { 24541da177e4SLinus Torvalds /* Init failed, cleanup */ 24553eff45eaSGustavo F. Padovan flush_work(&hdev->tx_work); 2456c347b765SGustavo F. Padovan flush_work(&hdev->cmd_work); 2457b78752ccSMarcel Holtmann flush_work(&hdev->rx_work); 24581da177e4SLinus Torvalds 24591da177e4SLinus Torvalds skb_queue_purge(&hdev->cmd_q); 24601da177e4SLinus Torvalds skb_queue_purge(&hdev->rx_q); 24611da177e4SLinus Torvalds 24621da177e4SLinus Torvalds if (hdev->flush) 24631da177e4SLinus Torvalds hdev->flush(hdev); 24641da177e4SLinus Torvalds 24651da177e4SLinus Torvalds if (hdev->sent_cmd) { 24661da177e4SLinus Torvalds kfree_skb(hdev->sent_cmd); 24671da177e4SLinus Torvalds hdev->sent_cmd = NULL; 24681da177e4SLinus Torvalds } 24691da177e4SLinus Torvalds 24701da177e4SLinus Torvalds hdev->close(hdev); 2471fee746b0SMarcel Holtmann hdev->flags &= BIT(HCI_RAW); 24721da177e4SLinus Torvalds } 24731da177e4SLinus Torvalds 24741da177e4SLinus Torvalds done: 24751da177e4SLinus Torvalds hci_req_unlock(hdev); 24761da177e4SLinus Torvalds return ret; 24771da177e4SLinus Torvalds } 24781da177e4SLinus Torvalds 2479cbed0ca1SJohan Hedberg /* ---- HCI ioctl helpers ---- */ 2480cbed0ca1SJohan Hedberg 2481cbed0ca1SJohan Hedberg int hci_dev_open(__u16 dev) 2482cbed0ca1SJohan Hedberg { 2483cbed0ca1SJohan Hedberg struct hci_dev *hdev; 2484cbed0ca1SJohan Hedberg int err; 2485cbed0ca1SJohan Hedberg 2486cbed0ca1SJohan Hedberg hdev = hci_dev_get(dev); 2487cbed0ca1SJohan Hedberg if (!hdev) 2488cbed0ca1SJohan Hedberg return -ENODEV; 2489cbed0ca1SJohan Hedberg 24904a964404SMarcel Holtmann /* Devices that are marked as unconfigured can only be powered 2491fee746b0SMarcel Holtmann * up as user channel. Trying to bring them up as normal devices 2492fee746b0SMarcel Holtmann * will result into a failure. Only user channel operation is 2493fee746b0SMarcel Holtmann * possible. 2494fee746b0SMarcel Holtmann * 2495fee746b0SMarcel Holtmann * When this function is called for a user channel, the flag 2496fee746b0SMarcel Holtmann * HCI_USER_CHANNEL will be set first before attempting to 2497fee746b0SMarcel Holtmann * open the device. 2498fee746b0SMarcel Holtmann */ 24994a964404SMarcel Holtmann if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && 2500fee746b0SMarcel Holtmann !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 2501fee746b0SMarcel Holtmann err = -EOPNOTSUPP; 2502fee746b0SMarcel Holtmann goto done; 2503fee746b0SMarcel Holtmann } 2504fee746b0SMarcel Holtmann 2505e1d08f40SJohan Hedberg /* We need to ensure that no other power on/off work is pending 2506e1d08f40SJohan Hedberg * before proceeding to call hci_dev_do_open. This is 2507e1d08f40SJohan Hedberg * particularly important if the setup procedure has not yet 2508e1d08f40SJohan Hedberg * completed. 2509e1d08f40SJohan Hedberg */ 2510e1d08f40SJohan Hedberg if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) 2511e1d08f40SJohan Hedberg cancel_delayed_work(&hdev->power_off); 2512e1d08f40SJohan Hedberg 2513a5c8f270SMarcel Holtmann /* After this call it is guaranteed that the setup procedure 2514a5c8f270SMarcel Holtmann * has finished. This means that error conditions like RFKILL 2515a5c8f270SMarcel Holtmann * or no valid public or static random address apply. 2516a5c8f270SMarcel Holtmann */ 2517e1d08f40SJohan Hedberg flush_workqueue(hdev->req_workqueue); 2518e1d08f40SJohan Hedberg 251912aa4f0aSMarcel Holtmann /* For controllers not using the management interface and that 2520b6ae8457SJohan Hedberg * are brought up using legacy ioctl, set the HCI_BONDABLE bit 252112aa4f0aSMarcel Holtmann * so that pairing works for them. Once the management interface 252212aa4f0aSMarcel Holtmann * is in use this bit will be cleared again and userspace has 252312aa4f0aSMarcel Holtmann * to explicitly enable it. 252412aa4f0aSMarcel Holtmann */ 252512aa4f0aSMarcel Holtmann if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && 252612aa4f0aSMarcel Holtmann !test_bit(HCI_MGMT, &hdev->dev_flags)) 2527b6ae8457SJohan Hedberg set_bit(HCI_BONDABLE, &hdev->dev_flags); 252812aa4f0aSMarcel Holtmann 2529cbed0ca1SJohan Hedberg err = hci_dev_do_open(hdev); 2530cbed0ca1SJohan Hedberg 2531fee746b0SMarcel Holtmann done: 2532cbed0ca1SJohan Hedberg hci_dev_put(hdev); 2533cbed0ca1SJohan Hedberg return err; 2534cbed0ca1SJohan Hedberg } 2535cbed0ca1SJohan Hedberg 2536d7347f3cSJohan Hedberg /* This function requires the caller holds hdev->lock */ 2537d7347f3cSJohan Hedberg static void hci_pend_le_actions_clear(struct hci_dev *hdev) 2538d7347f3cSJohan Hedberg { 2539d7347f3cSJohan Hedberg struct hci_conn_params *p; 2540d7347f3cSJohan Hedberg 2541d7347f3cSJohan Hedberg list_for_each_entry(p, &hdev->le_conn_params, list) 2542d7347f3cSJohan Hedberg list_del_init(&p->action); 2543d7347f3cSJohan Hedberg 2544d7347f3cSJohan Hedberg BT_DBG("All LE pending actions cleared"); 2545d7347f3cSJohan Hedberg } 2546d7347f3cSJohan Hedberg 25471da177e4SLinus Torvalds static int hci_dev_do_close(struct hci_dev *hdev) 25481da177e4SLinus Torvalds { 25491da177e4SLinus Torvalds BT_DBG("%s %p", hdev->name, hdev); 25501da177e4SLinus Torvalds 255178c04c0bSVinicius Costa Gomes cancel_delayed_work(&hdev->power_off); 255278c04c0bSVinicius Costa Gomes 25531da177e4SLinus Torvalds hci_req_cancel(hdev, ENODEV); 25541da177e4SLinus Torvalds hci_req_lock(hdev); 25551da177e4SLinus Torvalds 25561da177e4SLinus Torvalds if (!test_and_clear_bit(HCI_UP, &hdev->flags)) { 255765cc2b49SMarcel Holtmann cancel_delayed_work_sync(&hdev->cmd_timer); 25581da177e4SLinus Torvalds hci_req_unlock(hdev); 25591da177e4SLinus Torvalds return 0; 25601da177e4SLinus Torvalds } 25611da177e4SLinus Torvalds 25623eff45eaSGustavo F. Padovan /* Flush RX and TX works */ 25633eff45eaSGustavo F. Padovan flush_work(&hdev->tx_work); 2564b78752ccSMarcel Holtmann flush_work(&hdev->rx_work); 25651da177e4SLinus Torvalds 256616ab91abSJohan Hedberg if (hdev->discov_timeout > 0) { 2567e0f9309fSJohan Hedberg cancel_delayed_work(&hdev->discov_off); 256816ab91abSJohan Hedberg hdev->discov_timeout = 0; 25695e5282bbSJohan Hedberg clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); 2570310a3d48SMarcel Holtmann clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); 257116ab91abSJohan Hedberg } 257216ab91abSJohan Hedberg 2573a8b2d5c2SJohan Hedberg if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) 25747d78525dSJohan Hedberg cancel_delayed_work(&hdev->service_cache); 25757d78525dSJohan Hedberg 25767ba8b4beSAndre Guedes cancel_delayed_work_sync(&hdev->le_scan_disable); 25774518bb0fSJohan Hedberg 25784518bb0fSJohan Hedberg if (test_bit(HCI_MGMT, &hdev->dev_flags)) 2579d6bfd59cSJohan Hedberg cancel_delayed_work_sync(&hdev->rpa_expired); 25807ba8b4beSAndre Guedes 258109fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 25821f9b9a5dSAndre Guedes hci_inquiry_cache_flush(hdev); 25831da177e4SLinus Torvalds hci_conn_hash_flush(hdev); 2584d7347f3cSJohan Hedberg hci_pend_le_actions_clear(hdev); 258509fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 25861da177e4SLinus Torvalds 25871da177e4SLinus Torvalds hci_notify(hdev, HCI_DEV_DOWN); 25881da177e4SLinus Torvalds 25891da177e4SLinus Torvalds if (hdev->flush) 25901da177e4SLinus Torvalds hdev->flush(hdev); 25911da177e4SLinus Torvalds 25921da177e4SLinus Torvalds /* Reset device */ 25931da177e4SLinus Torvalds skb_queue_purge(&hdev->cmd_q); 25941da177e4SLinus Torvalds atomic_set(&hdev->cmd_cnt, 1); 25954a964404SMarcel Holtmann if (!test_bit(HCI_AUTO_OFF, &hdev->dev_flags) && 25964a964404SMarcel Holtmann !test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) && 2597a6c511c6SSzymon Janc test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) { 25981da177e4SLinus Torvalds set_bit(HCI_INIT, &hdev->flags); 259901178cd4SJohan Hedberg __hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT); 26001da177e4SLinus Torvalds clear_bit(HCI_INIT, &hdev->flags); 26011da177e4SLinus Torvalds } 26021da177e4SLinus Torvalds 2603c347b765SGustavo F. Padovan /* flush cmd work */ 2604c347b765SGustavo F. Padovan flush_work(&hdev->cmd_work); 26051da177e4SLinus Torvalds 26061da177e4SLinus Torvalds /* Drop queues */ 26071da177e4SLinus Torvalds skb_queue_purge(&hdev->rx_q); 26081da177e4SLinus Torvalds skb_queue_purge(&hdev->cmd_q); 26091da177e4SLinus Torvalds skb_queue_purge(&hdev->raw_q); 26101da177e4SLinus Torvalds 26111da177e4SLinus Torvalds /* Drop last sent command */ 26121da177e4SLinus Torvalds if (hdev->sent_cmd) { 261365cc2b49SMarcel Holtmann cancel_delayed_work_sync(&hdev->cmd_timer); 26141da177e4SLinus Torvalds kfree_skb(hdev->sent_cmd); 26151da177e4SLinus Torvalds hdev->sent_cmd = NULL; 26161da177e4SLinus Torvalds } 26171da177e4SLinus Torvalds 2618b6ddb638SJohan Hedberg kfree_skb(hdev->recv_evt); 2619b6ddb638SJohan Hedberg hdev->recv_evt = NULL; 2620b6ddb638SJohan Hedberg 26211da177e4SLinus Torvalds /* After this point our queues are empty 26221da177e4SLinus Torvalds * and no tasks are scheduled. */ 26231da177e4SLinus Torvalds hdev->close(hdev); 26241da177e4SLinus Torvalds 262535b973c9SJohan Hedberg /* Clear flags */ 2626fee746b0SMarcel Holtmann hdev->flags &= BIT(HCI_RAW); 262735b973c9SJohan Hedberg hdev->dev_flags &= ~HCI_PERSISTENT_MASK; 262835b973c9SJohan Hedberg 262993c311a0SMarcel Holtmann if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { 263093c311a0SMarcel Holtmann if (hdev->dev_type == HCI_BREDR) { 263109fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 2632744cf19eSJohan Hedberg mgmt_powered(hdev, 0); 263309fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 26348ee56540SMarcel Holtmann } 263593c311a0SMarcel Holtmann } 26365add6af8SJohan Hedberg 2637ced5c338SAndrei Emeltchenko /* Controller radio is available but is currently powered down */ 2638536619e8SMarcel Holtmann hdev->amp_status = AMP_STATUS_POWERED_DOWN; 2639ced5c338SAndrei Emeltchenko 2640e59fda8dSJohan Hedberg memset(hdev->eir, 0, sizeof(hdev->eir)); 264109b3c3fbSJohan Hedberg memset(hdev->dev_class, 0, sizeof(hdev->dev_class)); 26427a4cd51dSMarcel Holtmann bacpy(&hdev->random_addr, BDADDR_ANY); 2643e59fda8dSJohan Hedberg 26441da177e4SLinus Torvalds hci_req_unlock(hdev); 26451da177e4SLinus Torvalds 26461da177e4SLinus Torvalds hci_dev_put(hdev); 26471da177e4SLinus Torvalds return 0; 26481da177e4SLinus Torvalds } 26491da177e4SLinus Torvalds 26501da177e4SLinus Torvalds int hci_dev_close(__u16 dev) 26511da177e4SLinus Torvalds { 26521da177e4SLinus Torvalds struct hci_dev *hdev; 26531da177e4SLinus Torvalds int err; 26541da177e4SLinus Torvalds 265570f23020SAndrei Emeltchenko hdev = hci_dev_get(dev); 265670f23020SAndrei Emeltchenko if (!hdev) 26571da177e4SLinus Torvalds return -ENODEV; 26588ee56540SMarcel Holtmann 26590736cfa8SMarcel Holtmann if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 26600736cfa8SMarcel Holtmann err = -EBUSY; 26610736cfa8SMarcel Holtmann goto done; 26620736cfa8SMarcel Holtmann } 26630736cfa8SMarcel Holtmann 26648ee56540SMarcel Holtmann if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) 26658ee56540SMarcel Holtmann cancel_delayed_work(&hdev->power_off); 26668ee56540SMarcel Holtmann 26671da177e4SLinus Torvalds err = hci_dev_do_close(hdev); 26688ee56540SMarcel Holtmann 26690736cfa8SMarcel Holtmann done: 26701da177e4SLinus Torvalds hci_dev_put(hdev); 26711da177e4SLinus Torvalds return err; 26721da177e4SLinus Torvalds } 26731da177e4SLinus Torvalds 26741da177e4SLinus Torvalds int hci_dev_reset(__u16 dev) 26751da177e4SLinus Torvalds { 26761da177e4SLinus Torvalds struct hci_dev *hdev; 26771da177e4SLinus Torvalds int ret = 0; 26781da177e4SLinus Torvalds 267970f23020SAndrei Emeltchenko hdev = hci_dev_get(dev); 268070f23020SAndrei Emeltchenko if (!hdev) 26811da177e4SLinus Torvalds return -ENODEV; 26821da177e4SLinus Torvalds 26831da177e4SLinus Torvalds hci_req_lock(hdev); 26841da177e4SLinus Torvalds 2685808a049eSMarcel Holtmann if (!test_bit(HCI_UP, &hdev->flags)) { 2686808a049eSMarcel Holtmann ret = -ENETDOWN; 26871da177e4SLinus Torvalds goto done; 2688808a049eSMarcel Holtmann } 26891da177e4SLinus Torvalds 26900736cfa8SMarcel Holtmann if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 26910736cfa8SMarcel Holtmann ret = -EBUSY; 26920736cfa8SMarcel Holtmann goto done; 26930736cfa8SMarcel Holtmann } 26940736cfa8SMarcel Holtmann 26954a964404SMarcel Holtmann if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { 2696fee746b0SMarcel Holtmann ret = -EOPNOTSUPP; 2697fee746b0SMarcel Holtmann goto done; 2698fee746b0SMarcel Holtmann } 2699fee746b0SMarcel Holtmann 27001da177e4SLinus Torvalds /* Drop queues */ 27011da177e4SLinus Torvalds skb_queue_purge(&hdev->rx_q); 27021da177e4SLinus Torvalds skb_queue_purge(&hdev->cmd_q); 27031da177e4SLinus Torvalds 270409fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 27051f9b9a5dSAndre Guedes hci_inquiry_cache_flush(hdev); 27061da177e4SLinus Torvalds hci_conn_hash_flush(hdev); 270709fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 27081da177e4SLinus Torvalds 27091da177e4SLinus Torvalds if (hdev->flush) 27101da177e4SLinus Torvalds hdev->flush(hdev); 27111da177e4SLinus Torvalds 27121da177e4SLinus Torvalds atomic_set(&hdev->cmd_cnt, 1); 27136ed58ec5SVille Tervo hdev->acl_cnt = 0; hdev->sco_cnt = 0; hdev->le_cnt = 0; 27141da177e4SLinus Torvalds 271501178cd4SJohan Hedberg ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT); 27161da177e4SLinus Torvalds 27171da177e4SLinus Torvalds done: 27181da177e4SLinus Torvalds hci_req_unlock(hdev); 27191da177e4SLinus Torvalds hci_dev_put(hdev); 27201da177e4SLinus Torvalds return ret; 27211da177e4SLinus Torvalds } 27221da177e4SLinus Torvalds 27231da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev) 27241da177e4SLinus Torvalds { 27251da177e4SLinus Torvalds struct hci_dev *hdev; 27261da177e4SLinus Torvalds int ret = 0; 27271da177e4SLinus Torvalds 272870f23020SAndrei Emeltchenko hdev = hci_dev_get(dev); 272970f23020SAndrei Emeltchenko if (!hdev) 27301da177e4SLinus Torvalds return -ENODEV; 27311da177e4SLinus Torvalds 27320736cfa8SMarcel Holtmann if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 27330736cfa8SMarcel Holtmann ret = -EBUSY; 27340736cfa8SMarcel Holtmann goto done; 27350736cfa8SMarcel Holtmann } 27360736cfa8SMarcel Holtmann 27374a964404SMarcel Holtmann if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { 2738fee746b0SMarcel Holtmann ret = -EOPNOTSUPP; 2739fee746b0SMarcel Holtmann goto done; 2740fee746b0SMarcel Holtmann } 2741fee746b0SMarcel Holtmann 27421da177e4SLinus Torvalds memset(&hdev->stat, 0, sizeof(struct hci_dev_stats)); 27431da177e4SLinus Torvalds 27440736cfa8SMarcel Holtmann done: 27451da177e4SLinus Torvalds hci_dev_put(hdev); 27461da177e4SLinus Torvalds return ret; 27471da177e4SLinus Torvalds } 27481da177e4SLinus Torvalds 2749123abc08SJohan Hedberg static void hci_update_scan_state(struct hci_dev *hdev, u8 scan) 2750123abc08SJohan Hedberg { 2751bc6d2d04SJohan Hedberg bool conn_changed, discov_changed; 2752123abc08SJohan Hedberg 2753123abc08SJohan Hedberg BT_DBG("%s scan 0x%02x", hdev->name, scan); 2754123abc08SJohan Hedberg 2755123abc08SJohan Hedberg if ((scan & SCAN_PAGE)) 2756123abc08SJohan Hedberg conn_changed = !test_and_set_bit(HCI_CONNECTABLE, 2757123abc08SJohan Hedberg &hdev->dev_flags); 2758123abc08SJohan Hedberg else 2759123abc08SJohan Hedberg conn_changed = test_and_clear_bit(HCI_CONNECTABLE, 2760123abc08SJohan Hedberg &hdev->dev_flags); 2761123abc08SJohan Hedberg 2762bc6d2d04SJohan Hedberg if ((scan & SCAN_INQUIRY)) { 2763bc6d2d04SJohan Hedberg discov_changed = !test_and_set_bit(HCI_DISCOVERABLE, 2764bc6d2d04SJohan Hedberg &hdev->dev_flags); 2765bc6d2d04SJohan Hedberg } else { 2766bc6d2d04SJohan Hedberg clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); 2767bc6d2d04SJohan Hedberg discov_changed = test_and_clear_bit(HCI_DISCOVERABLE, 2768bc6d2d04SJohan Hedberg &hdev->dev_flags); 2769bc6d2d04SJohan Hedberg } 2770bc6d2d04SJohan Hedberg 2771123abc08SJohan Hedberg if (!test_bit(HCI_MGMT, &hdev->dev_flags)) 2772123abc08SJohan Hedberg return; 2773123abc08SJohan Hedberg 2774bc6d2d04SJohan Hedberg if (conn_changed || discov_changed) { 2775bc6d2d04SJohan Hedberg /* In case this was disabled through mgmt */ 2776bc6d2d04SJohan Hedberg set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); 2777bc6d2d04SJohan Hedberg 2778bc6d2d04SJohan Hedberg if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) 2779bc6d2d04SJohan Hedberg mgmt_update_adv_data(hdev); 2780bc6d2d04SJohan Hedberg 2781123abc08SJohan Hedberg mgmt_new_settings(hdev); 2782123abc08SJohan Hedberg } 2783bc6d2d04SJohan Hedberg } 2784123abc08SJohan Hedberg 27851da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg) 27861da177e4SLinus Torvalds { 27871da177e4SLinus Torvalds struct hci_dev *hdev; 27881da177e4SLinus Torvalds struct hci_dev_req dr; 27891da177e4SLinus Torvalds int err = 0; 27901da177e4SLinus Torvalds 27911da177e4SLinus Torvalds if (copy_from_user(&dr, arg, sizeof(dr))) 27921da177e4SLinus Torvalds return -EFAULT; 27931da177e4SLinus Torvalds 279470f23020SAndrei Emeltchenko hdev = hci_dev_get(dr.dev_id); 279570f23020SAndrei Emeltchenko if (!hdev) 27961da177e4SLinus Torvalds return -ENODEV; 27971da177e4SLinus Torvalds 27980736cfa8SMarcel Holtmann if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 27990736cfa8SMarcel Holtmann err = -EBUSY; 28000736cfa8SMarcel Holtmann goto done; 28010736cfa8SMarcel Holtmann } 28020736cfa8SMarcel Holtmann 28034a964404SMarcel Holtmann if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { 2804fee746b0SMarcel Holtmann err = -EOPNOTSUPP; 2805fee746b0SMarcel Holtmann goto done; 2806fee746b0SMarcel Holtmann } 2807fee746b0SMarcel Holtmann 28085b69bef5SMarcel Holtmann if (hdev->dev_type != HCI_BREDR) { 28095b69bef5SMarcel Holtmann err = -EOPNOTSUPP; 28105b69bef5SMarcel Holtmann goto done; 28115b69bef5SMarcel Holtmann } 28125b69bef5SMarcel Holtmann 281356f87901SJohan Hedberg if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { 281456f87901SJohan Hedberg err = -EOPNOTSUPP; 281556f87901SJohan Hedberg goto done; 281656f87901SJohan Hedberg } 281756f87901SJohan Hedberg 28181da177e4SLinus Torvalds switch (cmd) { 28191da177e4SLinus Torvalds case HCISETAUTH: 282001178cd4SJohan Hedberg err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, 28215f246e89SAndrei Emeltchenko HCI_INIT_TIMEOUT); 28221da177e4SLinus Torvalds break; 28231da177e4SLinus Torvalds 28241da177e4SLinus Torvalds case HCISETENCRYPT: 28251da177e4SLinus Torvalds if (!lmp_encrypt_capable(hdev)) { 28261da177e4SLinus Torvalds err = -EOPNOTSUPP; 28271da177e4SLinus Torvalds break; 28281da177e4SLinus Torvalds } 28291da177e4SLinus Torvalds 28301da177e4SLinus Torvalds if (!test_bit(HCI_AUTH, &hdev->flags)) { 28311da177e4SLinus Torvalds /* Auth must be enabled first */ 283201178cd4SJohan Hedberg err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, 28335f246e89SAndrei Emeltchenko HCI_INIT_TIMEOUT); 28341da177e4SLinus Torvalds if (err) 28351da177e4SLinus Torvalds break; 28361da177e4SLinus Torvalds } 28371da177e4SLinus Torvalds 283801178cd4SJohan Hedberg err = hci_req_sync(hdev, hci_encrypt_req, dr.dev_opt, 28395f246e89SAndrei Emeltchenko HCI_INIT_TIMEOUT); 28401da177e4SLinus Torvalds break; 28411da177e4SLinus Torvalds 28421da177e4SLinus Torvalds case HCISETSCAN: 284301178cd4SJohan Hedberg err = hci_req_sync(hdev, hci_scan_req, dr.dev_opt, 28445f246e89SAndrei Emeltchenko HCI_INIT_TIMEOUT); 284591a668b0SJohan Hedberg 2846bc6d2d04SJohan Hedberg /* Ensure that the connectable and discoverable states 2847bc6d2d04SJohan Hedberg * get correctly modified as this was a non-mgmt change. 284891a668b0SJohan Hedberg */ 2849123abc08SJohan Hedberg if (!err) 2850123abc08SJohan Hedberg hci_update_scan_state(hdev, dr.dev_opt); 28511da177e4SLinus Torvalds break; 28521da177e4SLinus Torvalds 28531da177e4SLinus Torvalds case HCISETLINKPOL: 285401178cd4SJohan Hedberg err = hci_req_sync(hdev, hci_linkpol_req, dr.dev_opt, 28555f246e89SAndrei Emeltchenko HCI_INIT_TIMEOUT); 28561da177e4SLinus Torvalds break; 28571da177e4SLinus Torvalds 28581da177e4SLinus Torvalds case HCISETLINKMODE: 2859e4e8e37cSMarcel Holtmann hdev->link_mode = ((__u16) dr.dev_opt) & 2860e4e8e37cSMarcel Holtmann (HCI_LM_MASTER | HCI_LM_ACCEPT); 2861e4e8e37cSMarcel Holtmann break; 2862e4e8e37cSMarcel Holtmann 2863e4e8e37cSMarcel Holtmann case HCISETPTYPE: 2864e4e8e37cSMarcel Holtmann hdev->pkt_type = (__u16) dr.dev_opt; 28651da177e4SLinus Torvalds break; 28661da177e4SLinus Torvalds 28671da177e4SLinus Torvalds case HCISETACLMTU: 28681da177e4SLinus Torvalds hdev->acl_mtu = *((__u16 *) &dr.dev_opt + 1); 28691da177e4SLinus Torvalds hdev->acl_pkts = *((__u16 *) &dr.dev_opt + 0); 28701da177e4SLinus Torvalds break; 28711da177e4SLinus Torvalds 28721da177e4SLinus Torvalds case HCISETSCOMTU: 28731da177e4SLinus Torvalds hdev->sco_mtu = *((__u16 *) &dr.dev_opt + 1); 28741da177e4SLinus Torvalds hdev->sco_pkts = *((__u16 *) &dr.dev_opt + 0); 28751da177e4SLinus Torvalds break; 28761da177e4SLinus Torvalds 28771da177e4SLinus Torvalds default: 28781da177e4SLinus Torvalds err = -EINVAL; 28791da177e4SLinus Torvalds break; 28801da177e4SLinus Torvalds } 2881e4e8e37cSMarcel Holtmann 28820736cfa8SMarcel Holtmann done: 28831da177e4SLinus Torvalds hci_dev_put(hdev); 28841da177e4SLinus Torvalds return err; 28851da177e4SLinus Torvalds } 28861da177e4SLinus Torvalds 28871da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg) 28881da177e4SLinus Torvalds { 28898035ded4SLuiz Augusto von Dentz struct hci_dev *hdev; 28901da177e4SLinus Torvalds struct hci_dev_list_req *dl; 28911da177e4SLinus Torvalds struct hci_dev_req *dr; 28921da177e4SLinus Torvalds int n = 0, size, err; 28931da177e4SLinus Torvalds __u16 dev_num; 28941da177e4SLinus Torvalds 28951da177e4SLinus Torvalds if (get_user(dev_num, (__u16 __user *) arg)) 28961da177e4SLinus Torvalds return -EFAULT; 28971da177e4SLinus Torvalds 28981da177e4SLinus Torvalds if (!dev_num || dev_num > (PAGE_SIZE * 2) / sizeof(*dr)) 28991da177e4SLinus Torvalds return -EINVAL; 29001da177e4SLinus Torvalds 29011da177e4SLinus Torvalds size = sizeof(*dl) + dev_num * sizeof(*dr); 29021da177e4SLinus Torvalds 290370f23020SAndrei Emeltchenko dl = kzalloc(size, GFP_KERNEL); 290470f23020SAndrei Emeltchenko if (!dl) 29051da177e4SLinus Torvalds return -ENOMEM; 29061da177e4SLinus Torvalds 29071da177e4SLinus Torvalds dr = dl->dev_req; 29081da177e4SLinus Torvalds 2909f20d09d5SGustavo F. Padovan read_lock(&hci_dev_list_lock); 29108035ded4SLuiz Augusto von Dentz list_for_each_entry(hdev, &hci_dev_list, list) { 29112e84d8dbSMarcel Holtmann unsigned long flags = hdev->flags; 2912c542a06cSJohan Hedberg 29132e84d8dbSMarcel Holtmann /* When the auto-off is configured it means the transport 29142e84d8dbSMarcel Holtmann * is running, but in that case still indicate that the 29152e84d8dbSMarcel Holtmann * device is actually down. 29162e84d8dbSMarcel Holtmann */ 29172e84d8dbSMarcel Holtmann if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) 29182e84d8dbSMarcel Holtmann flags &= ~BIT(HCI_UP); 2919c542a06cSJohan Hedberg 29201da177e4SLinus Torvalds (dr + n)->dev_id = hdev->id; 29212e84d8dbSMarcel Holtmann (dr + n)->dev_opt = flags; 2922c542a06cSJohan Hedberg 29231da177e4SLinus Torvalds if (++n >= dev_num) 29241da177e4SLinus Torvalds break; 29251da177e4SLinus Torvalds } 2926f20d09d5SGustavo F. Padovan read_unlock(&hci_dev_list_lock); 29271da177e4SLinus Torvalds 29281da177e4SLinus Torvalds dl->dev_num = n; 29291da177e4SLinus Torvalds size = sizeof(*dl) + n * sizeof(*dr); 29301da177e4SLinus Torvalds 29311da177e4SLinus Torvalds err = copy_to_user(arg, dl, size); 29321da177e4SLinus Torvalds kfree(dl); 29331da177e4SLinus Torvalds 29341da177e4SLinus Torvalds return err ? -EFAULT : 0; 29351da177e4SLinus Torvalds } 29361da177e4SLinus Torvalds 29371da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg) 29381da177e4SLinus Torvalds { 29391da177e4SLinus Torvalds struct hci_dev *hdev; 29401da177e4SLinus Torvalds struct hci_dev_info di; 29412e84d8dbSMarcel Holtmann unsigned long flags; 29421da177e4SLinus Torvalds int err = 0; 29431da177e4SLinus Torvalds 29441da177e4SLinus Torvalds if (copy_from_user(&di, arg, sizeof(di))) 29451da177e4SLinus Torvalds return -EFAULT; 29461da177e4SLinus Torvalds 294770f23020SAndrei Emeltchenko hdev = hci_dev_get(di.dev_id); 294870f23020SAndrei Emeltchenko if (!hdev) 29491da177e4SLinus Torvalds return -ENODEV; 29501da177e4SLinus Torvalds 29512e84d8dbSMarcel Holtmann /* When the auto-off is configured it means the transport 29522e84d8dbSMarcel Holtmann * is running, but in that case still indicate that the 29532e84d8dbSMarcel Holtmann * device is actually down. 29542e84d8dbSMarcel Holtmann */ 29552e84d8dbSMarcel Holtmann if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) 29562e84d8dbSMarcel Holtmann flags = hdev->flags & ~BIT(HCI_UP); 29572e84d8dbSMarcel Holtmann else 29582e84d8dbSMarcel Holtmann flags = hdev->flags; 2959c542a06cSJohan Hedberg 29601da177e4SLinus Torvalds strcpy(di.name, hdev->name); 29611da177e4SLinus Torvalds di.bdaddr = hdev->bdaddr; 296260f2a3edSMarcel Holtmann di.type = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4); 29632e84d8dbSMarcel Holtmann di.flags = flags; 29641da177e4SLinus Torvalds di.pkt_type = hdev->pkt_type; 2965572c7f84SJohan Hedberg if (lmp_bredr_capable(hdev)) { 29661da177e4SLinus Torvalds di.acl_mtu = hdev->acl_mtu; 29671da177e4SLinus Torvalds di.acl_pkts = hdev->acl_pkts; 29681da177e4SLinus Torvalds di.sco_mtu = hdev->sco_mtu; 29691da177e4SLinus Torvalds di.sco_pkts = hdev->sco_pkts; 2970572c7f84SJohan Hedberg } else { 2971572c7f84SJohan Hedberg di.acl_mtu = hdev->le_mtu; 2972572c7f84SJohan Hedberg di.acl_pkts = hdev->le_pkts; 2973572c7f84SJohan Hedberg di.sco_mtu = 0; 2974572c7f84SJohan Hedberg di.sco_pkts = 0; 2975572c7f84SJohan Hedberg } 29761da177e4SLinus Torvalds di.link_policy = hdev->link_policy; 29771da177e4SLinus Torvalds di.link_mode = hdev->link_mode; 29781da177e4SLinus Torvalds 29791da177e4SLinus Torvalds memcpy(&di.stat, &hdev->stat, sizeof(di.stat)); 29801da177e4SLinus Torvalds memcpy(&di.features, &hdev->features, sizeof(di.features)); 29811da177e4SLinus Torvalds 29821da177e4SLinus Torvalds if (copy_to_user(arg, &di, sizeof(di))) 29831da177e4SLinus Torvalds err = -EFAULT; 29841da177e4SLinus Torvalds 29851da177e4SLinus Torvalds hci_dev_put(hdev); 29861da177e4SLinus Torvalds 29871da177e4SLinus Torvalds return err; 29881da177e4SLinus Torvalds } 29891da177e4SLinus Torvalds 29901da177e4SLinus Torvalds /* ---- Interface to HCI drivers ---- */ 29911da177e4SLinus Torvalds 2992611b30f7SMarcel Holtmann static int hci_rfkill_set_block(void *data, bool blocked) 2993611b30f7SMarcel Holtmann { 2994611b30f7SMarcel Holtmann struct hci_dev *hdev = data; 2995611b30f7SMarcel Holtmann 2996611b30f7SMarcel Holtmann BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked); 2997611b30f7SMarcel Holtmann 29980736cfa8SMarcel Holtmann if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) 29990736cfa8SMarcel Holtmann return -EBUSY; 30000736cfa8SMarcel Holtmann 30015e130367SJohan Hedberg if (blocked) { 30025e130367SJohan Hedberg set_bit(HCI_RFKILLED, &hdev->dev_flags); 3003d603b76bSMarcel Holtmann if (!test_bit(HCI_SETUP, &hdev->dev_flags) && 3004d603b76bSMarcel Holtmann !test_bit(HCI_CONFIG, &hdev->dev_flags)) 3005611b30f7SMarcel Holtmann hci_dev_do_close(hdev); 30065e130367SJohan Hedberg } else { 30075e130367SJohan Hedberg clear_bit(HCI_RFKILLED, &hdev->dev_flags); 30085e130367SJohan Hedberg } 3009611b30f7SMarcel Holtmann 3010611b30f7SMarcel Holtmann return 0; 3011611b30f7SMarcel Holtmann } 3012611b30f7SMarcel Holtmann 3013611b30f7SMarcel Holtmann static const struct rfkill_ops hci_rfkill_ops = { 3014611b30f7SMarcel Holtmann .set_block = hci_rfkill_set_block, 3015611b30f7SMarcel Holtmann }; 3016611b30f7SMarcel Holtmann 3017ab81cbf9SJohan Hedberg static void hci_power_on(struct work_struct *work) 3018ab81cbf9SJohan Hedberg { 3019ab81cbf9SJohan Hedberg struct hci_dev *hdev = container_of(work, struct hci_dev, power_on); 302096570ffcSJohan Hedberg int err; 3021ab81cbf9SJohan Hedberg 3022ab81cbf9SJohan Hedberg BT_DBG("%s", hdev->name); 3023ab81cbf9SJohan Hedberg 3024cbed0ca1SJohan Hedberg err = hci_dev_do_open(hdev); 302596570ffcSJohan Hedberg if (err < 0) { 302696570ffcSJohan Hedberg mgmt_set_powered_failed(hdev, err); 3027ab81cbf9SJohan Hedberg return; 302896570ffcSJohan Hedberg } 3029ab81cbf9SJohan Hedberg 3030a5c8f270SMarcel Holtmann /* During the HCI setup phase, a few error conditions are 3031a5c8f270SMarcel Holtmann * ignored and they need to be checked now. If they are still 3032a5c8f270SMarcel Holtmann * valid, it is important to turn the device back off. 3033a5c8f270SMarcel Holtmann */ 3034a5c8f270SMarcel Holtmann if (test_bit(HCI_RFKILLED, &hdev->dev_flags) || 30354a964404SMarcel Holtmann test_bit(HCI_UNCONFIGURED, &hdev->dev_flags) || 3036a5c8f270SMarcel Holtmann (hdev->dev_type == HCI_BREDR && 3037a5c8f270SMarcel Holtmann !bacmp(&hdev->bdaddr, BDADDR_ANY) && 3038a5c8f270SMarcel Holtmann !bacmp(&hdev->static_addr, BDADDR_ANY))) { 3039bf543036SJohan Hedberg clear_bit(HCI_AUTO_OFF, &hdev->dev_flags); 3040bf543036SJohan Hedberg hci_dev_do_close(hdev); 3041bf543036SJohan Hedberg } else if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { 304219202573SJohan Hedberg queue_delayed_work(hdev->req_workqueue, &hdev->power_off, 304319202573SJohan Hedberg HCI_AUTO_OFF_TIMEOUT); 3044bf543036SJohan Hedberg } 3045ab81cbf9SJohan Hedberg 3046fee746b0SMarcel Holtmann if (test_and_clear_bit(HCI_SETUP, &hdev->dev_flags)) { 30474a964404SMarcel Holtmann /* For unconfigured devices, set the HCI_RAW flag 30484a964404SMarcel Holtmann * so that userspace can easily identify them. 30494a964404SMarcel Holtmann */ 30504a964404SMarcel Holtmann if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) 30514a964404SMarcel Holtmann set_bit(HCI_RAW, &hdev->flags); 30520602a8adSMarcel Holtmann 30530602a8adSMarcel Holtmann /* For fully configured devices, this will send 30540602a8adSMarcel Holtmann * the Index Added event. For unconfigured devices, 30550602a8adSMarcel Holtmann * it will send Unconfigued Index Added event. 30560602a8adSMarcel Holtmann * 30570602a8adSMarcel Holtmann * Devices with HCI_QUIRK_RAW_DEVICE are ignored 30580602a8adSMarcel Holtmann * and no event will be send. 30590602a8adSMarcel Holtmann */ 3060744cf19eSJohan Hedberg mgmt_index_added(hdev); 3061d603b76bSMarcel Holtmann } else if (test_and_clear_bit(HCI_CONFIG, &hdev->dev_flags)) { 30625ea234d3SMarcel Holtmann /* When the controller is now configured, then it 30635ea234d3SMarcel Holtmann * is important to clear the HCI_RAW flag. 30645ea234d3SMarcel Holtmann */ 30655ea234d3SMarcel Holtmann if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) 30665ea234d3SMarcel Holtmann clear_bit(HCI_RAW, &hdev->flags); 30675ea234d3SMarcel Holtmann 3068d603b76bSMarcel Holtmann /* Powering on the controller with HCI_CONFIG set only 3069d603b76bSMarcel Holtmann * happens with the transition from unconfigured to 3070d603b76bSMarcel Holtmann * configured. This will send the Index Added event. 3071d603b76bSMarcel Holtmann */ 3072d603b76bSMarcel Holtmann mgmt_index_added(hdev); 3073ab81cbf9SJohan Hedberg } 3074ab81cbf9SJohan Hedberg } 3075ab81cbf9SJohan Hedberg 3076ab81cbf9SJohan Hedberg static void hci_power_off(struct work_struct *work) 3077ab81cbf9SJohan Hedberg { 30783243553fSJohan Hedberg struct hci_dev *hdev = container_of(work, struct hci_dev, 30793243553fSJohan Hedberg power_off.work); 3080ab81cbf9SJohan Hedberg 3081ab81cbf9SJohan Hedberg BT_DBG("%s", hdev->name); 3082ab81cbf9SJohan Hedberg 30838ee56540SMarcel Holtmann hci_dev_do_close(hdev); 3084ab81cbf9SJohan Hedberg } 3085ab81cbf9SJohan Hedberg 308616ab91abSJohan Hedberg static void hci_discov_off(struct work_struct *work) 308716ab91abSJohan Hedberg { 308816ab91abSJohan Hedberg struct hci_dev *hdev; 308916ab91abSJohan Hedberg 309016ab91abSJohan Hedberg hdev = container_of(work, struct hci_dev, discov_off.work); 309116ab91abSJohan Hedberg 309216ab91abSJohan Hedberg BT_DBG("%s", hdev->name); 309316ab91abSJohan Hedberg 3094d1967ff8SMarcel Holtmann mgmt_discoverable_timeout(hdev); 309516ab91abSJohan Hedberg } 309616ab91abSJohan Hedberg 309735f7498aSJohan Hedberg void hci_uuids_clear(struct hci_dev *hdev) 30982aeb9a1aSJohan Hedberg { 30994821002cSJohan Hedberg struct bt_uuid *uuid, *tmp; 31002aeb9a1aSJohan Hedberg 31014821002cSJohan Hedberg list_for_each_entry_safe(uuid, tmp, &hdev->uuids, list) { 31024821002cSJohan Hedberg list_del(&uuid->list); 31032aeb9a1aSJohan Hedberg kfree(uuid); 31042aeb9a1aSJohan Hedberg } 31052aeb9a1aSJohan Hedberg } 31062aeb9a1aSJohan Hedberg 310735f7498aSJohan Hedberg void hci_link_keys_clear(struct hci_dev *hdev) 310855ed8ca1SJohan Hedberg { 310955ed8ca1SJohan Hedberg struct list_head *p, *n; 311055ed8ca1SJohan Hedberg 311155ed8ca1SJohan Hedberg list_for_each_safe(p, n, &hdev->link_keys) { 311255ed8ca1SJohan Hedberg struct link_key *key; 311355ed8ca1SJohan Hedberg 311455ed8ca1SJohan Hedberg key = list_entry(p, struct link_key, list); 311555ed8ca1SJohan Hedberg 311655ed8ca1SJohan Hedberg list_del(p); 311755ed8ca1SJohan Hedberg kfree(key); 311855ed8ca1SJohan Hedberg } 311955ed8ca1SJohan Hedberg } 312055ed8ca1SJohan Hedberg 312135f7498aSJohan Hedberg void hci_smp_ltks_clear(struct hci_dev *hdev) 3122b899efafSVinicius Costa Gomes { 3123b899efafSVinicius Costa Gomes struct smp_ltk *k, *tmp; 3124b899efafSVinicius Costa Gomes 3125b899efafSVinicius Costa Gomes list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) { 3126b899efafSVinicius Costa Gomes list_del(&k->list); 3127b899efafSVinicius Costa Gomes kfree(k); 3128b899efafSVinicius Costa Gomes } 3129b899efafSVinicius Costa Gomes } 3130b899efafSVinicius Costa Gomes 3131970c4e46SJohan Hedberg void hci_smp_irks_clear(struct hci_dev *hdev) 3132970c4e46SJohan Hedberg { 3133970c4e46SJohan Hedberg struct smp_irk *k, *tmp; 3134970c4e46SJohan Hedberg 3135970c4e46SJohan Hedberg list_for_each_entry_safe(k, tmp, &hdev->identity_resolving_keys, list) { 3136970c4e46SJohan Hedberg list_del(&k->list); 3137970c4e46SJohan Hedberg kfree(k); 3138970c4e46SJohan Hedberg } 3139970c4e46SJohan Hedberg } 3140970c4e46SJohan Hedberg 314155ed8ca1SJohan Hedberg struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) 314255ed8ca1SJohan Hedberg { 314355ed8ca1SJohan Hedberg struct link_key *k; 314455ed8ca1SJohan Hedberg 31458035ded4SLuiz Augusto von Dentz list_for_each_entry(k, &hdev->link_keys, list) 314655ed8ca1SJohan Hedberg if (bacmp(bdaddr, &k->bdaddr) == 0) 314755ed8ca1SJohan Hedberg return k; 314855ed8ca1SJohan Hedberg 314955ed8ca1SJohan Hedberg return NULL; 315055ed8ca1SJohan Hedberg } 315155ed8ca1SJohan Hedberg 3152745c0ce3SVishal Agarwal static bool hci_persistent_key(struct hci_dev *hdev, struct hci_conn *conn, 3153d25e28abSJohan Hedberg u8 key_type, u8 old_key_type) 3154d25e28abSJohan Hedberg { 3155d25e28abSJohan Hedberg /* Legacy key */ 3156d25e28abSJohan Hedberg if (key_type < 0x03) 3157745c0ce3SVishal Agarwal return true; 3158d25e28abSJohan Hedberg 3159d25e28abSJohan Hedberg /* Debug keys are insecure so don't store them persistently */ 3160d25e28abSJohan Hedberg if (key_type == HCI_LK_DEBUG_COMBINATION) 3161745c0ce3SVishal Agarwal return false; 3162d25e28abSJohan Hedberg 3163d25e28abSJohan Hedberg /* Changed combination key and there's no previous one */ 3164d25e28abSJohan Hedberg if (key_type == HCI_LK_CHANGED_COMBINATION && old_key_type == 0xff) 3165745c0ce3SVishal Agarwal return false; 3166d25e28abSJohan Hedberg 3167d25e28abSJohan Hedberg /* Security mode 3 case */ 3168d25e28abSJohan Hedberg if (!conn) 3169745c0ce3SVishal Agarwal return true; 3170d25e28abSJohan Hedberg 3171d25e28abSJohan Hedberg /* Neither local nor remote side had no-bonding as requirement */ 3172d25e28abSJohan Hedberg if (conn->auth_type > 0x01 && conn->remote_auth > 0x01) 3173745c0ce3SVishal Agarwal return true; 3174d25e28abSJohan Hedberg 3175d25e28abSJohan Hedberg /* Local side had dedicated bonding as requirement */ 3176d25e28abSJohan Hedberg if (conn->auth_type == 0x02 || conn->auth_type == 0x03) 3177745c0ce3SVishal Agarwal return true; 3178d25e28abSJohan Hedberg 3179d25e28abSJohan Hedberg /* Remote side had dedicated bonding as requirement */ 3180d25e28abSJohan Hedberg if (conn->remote_auth == 0x02 || conn->remote_auth == 0x03) 3181745c0ce3SVishal Agarwal return true; 3182d25e28abSJohan Hedberg 3183d25e28abSJohan Hedberg /* If none of the above criteria match, then don't store the key 3184d25e28abSJohan Hedberg * persistently */ 3185745c0ce3SVishal Agarwal return false; 3186d25e28abSJohan Hedberg } 3187d25e28abSJohan Hedberg 3188e804d25dSJohan Hedberg static u8 ltk_role(u8 type) 318998a0b845SJohan Hedberg { 3190e804d25dSJohan Hedberg if (type == SMP_LTK) 3191e804d25dSJohan Hedberg return HCI_ROLE_MASTER; 319298a0b845SJohan Hedberg 3193e804d25dSJohan Hedberg return HCI_ROLE_SLAVE; 319498a0b845SJohan Hedberg } 319598a0b845SJohan Hedberg 3196fe39c7b2SMarcel Holtmann struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, 3197e804d25dSJohan Hedberg u8 role) 319875d262c2SVinicius Costa Gomes { 3199c9839a11SVinicius Costa Gomes struct smp_ltk *k; 320075d262c2SVinicius Costa Gomes 3201c9839a11SVinicius Costa Gomes list_for_each_entry(k, &hdev->long_term_keys, list) { 3202fe39c7b2SMarcel Holtmann if (k->ediv != ediv || k->rand != rand) 320375d262c2SVinicius Costa Gomes continue; 320475d262c2SVinicius Costa Gomes 3205e804d25dSJohan Hedberg if (ltk_role(k->type) != role) 320698a0b845SJohan Hedberg continue; 320798a0b845SJohan Hedberg 320875d262c2SVinicius Costa Gomes return k; 320975d262c2SVinicius Costa Gomes } 321075d262c2SVinicius Costa Gomes 321175d262c2SVinicius Costa Gomes return NULL; 321275d262c2SVinicius Costa Gomes } 321375d262c2SVinicius Costa Gomes 3214c9839a11SVinicius Costa Gomes struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 3215e804d25dSJohan Hedberg u8 addr_type, u8 role) 321675d262c2SVinicius Costa Gomes { 3217c9839a11SVinicius Costa Gomes struct smp_ltk *k; 321875d262c2SVinicius Costa Gomes 3219c9839a11SVinicius Costa Gomes list_for_each_entry(k, &hdev->long_term_keys, list) 3220c9839a11SVinicius Costa Gomes if (addr_type == k->bdaddr_type && 322198a0b845SJohan Hedberg bacmp(bdaddr, &k->bdaddr) == 0 && 3222e804d25dSJohan Hedberg ltk_role(k->type) == role) 322375d262c2SVinicius Costa Gomes return k; 322475d262c2SVinicius Costa Gomes 322575d262c2SVinicius Costa Gomes return NULL; 322675d262c2SVinicius Costa Gomes } 322775d262c2SVinicius Costa Gomes 3228970c4e46SJohan Hedberg struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa) 3229970c4e46SJohan Hedberg { 3230970c4e46SJohan Hedberg struct smp_irk *irk; 3231970c4e46SJohan Hedberg 3232970c4e46SJohan Hedberg list_for_each_entry(irk, &hdev->identity_resolving_keys, list) { 3233970c4e46SJohan Hedberg if (!bacmp(&irk->rpa, rpa)) 3234970c4e46SJohan Hedberg return irk; 3235970c4e46SJohan Hedberg } 3236970c4e46SJohan Hedberg 3237893ededeSJohan Hedberg if (!hdev->tfm_aes) 3238893ededeSJohan Hedberg return NULL; 3239893ededeSJohan Hedberg 3240970c4e46SJohan Hedberg list_for_each_entry(irk, &hdev->identity_resolving_keys, list) { 3241970c4e46SJohan Hedberg if (smp_irk_matches(hdev->tfm_aes, irk->val, rpa)) { 3242970c4e46SJohan Hedberg bacpy(&irk->rpa, rpa); 3243970c4e46SJohan Hedberg return irk; 3244970c4e46SJohan Hedberg } 3245970c4e46SJohan Hedberg } 3246970c4e46SJohan Hedberg 3247970c4e46SJohan Hedberg return NULL; 3248970c4e46SJohan Hedberg } 3249970c4e46SJohan Hedberg 3250970c4e46SJohan Hedberg struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 3251970c4e46SJohan Hedberg u8 addr_type) 3252970c4e46SJohan Hedberg { 3253970c4e46SJohan Hedberg struct smp_irk *irk; 3254970c4e46SJohan Hedberg 32556cfc9988SJohan Hedberg /* Identity Address must be public or static random */ 32566cfc9988SJohan Hedberg if (addr_type == ADDR_LE_DEV_RANDOM && (bdaddr->b[5] & 0xc0) != 0xc0) 32576cfc9988SJohan Hedberg return NULL; 32586cfc9988SJohan Hedberg 3259970c4e46SJohan Hedberg list_for_each_entry(irk, &hdev->identity_resolving_keys, list) { 3260970c4e46SJohan Hedberg if (addr_type == irk->addr_type && 3261970c4e46SJohan Hedberg bacmp(bdaddr, &irk->bdaddr) == 0) 3262970c4e46SJohan Hedberg return irk; 3263970c4e46SJohan Hedberg } 3264970c4e46SJohan Hedberg 3265970c4e46SJohan Hedberg return NULL; 3266970c4e46SJohan Hedberg } 3267970c4e46SJohan Hedberg 3268567fa2aaSJohan Hedberg struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 32697652ff6aSJohan Hedberg bdaddr_t *bdaddr, u8 *val, u8 type, 32707652ff6aSJohan Hedberg u8 pin_len, bool *persistent) 327155ed8ca1SJohan Hedberg { 327255ed8ca1SJohan Hedberg struct link_key *key, *old_key; 3273745c0ce3SVishal Agarwal u8 old_key_type; 327455ed8ca1SJohan Hedberg 327555ed8ca1SJohan Hedberg old_key = hci_find_link_key(hdev, bdaddr); 327655ed8ca1SJohan Hedberg if (old_key) { 327755ed8ca1SJohan Hedberg old_key_type = old_key->type; 327855ed8ca1SJohan Hedberg key = old_key; 327955ed8ca1SJohan Hedberg } else { 328012adcf3aSJohan Hedberg old_key_type = conn ? conn->key_type : 0xff; 32810a14ab41SJohan Hedberg key = kzalloc(sizeof(*key), GFP_KERNEL); 328255ed8ca1SJohan Hedberg if (!key) 3283567fa2aaSJohan Hedberg return NULL; 328455ed8ca1SJohan Hedberg list_add(&key->list, &hdev->link_keys); 328555ed8ca1SJohan Hedberg } 328655ed8ca1SJohan Hedberg 32876ed93dc6SAndrei Emeltchenko BT_DBG("%s key for %pMR type %u", hdev->name, bdaddr, type); 328855ed8ca1SJohan Hedberg 3289d25e28abSJohan Hedberg /* Some buggy controller combinations generate a changed 3290d25e28abSJohan Hedberg * combination key for legacy pairing even when there's no 3291d25e28abSJohan Hedberg * previous key */ 3292d25e28abSJohan Hedberg if (type == HCI_LK_CHANGED_COMBINATION && 3293a8c5fb1aSGustavo Padovan (!conn || conn->remote_auth == 0xff) && old_key_type == 0xff) { 3294d25e28abSJohan Hedberg type = HCI_LK_COMBINATION; 3295655fe6ecSJohan Hedberg if (conn) 3296655fe6ecSJohan Hedberg conn->key_type = type; 3297655fe6ecSJohan Hedberg } 3298d25e28abSJohan Hedberg 329955ed8ca1SJohan Hedberg bacpy(&key->bdaddr, bdaddr); 33009b3b4460SAndrei Emeltchenko memcpy(key->val, val, HCI_LINK_KEY_SIZE); 330155ed8ca1SJohan Hedberg key->pin_len = pin_len; 330255ed8ca1SJohan Hedberg 3303b6020ba0SWaldemar Rymarkiewicz if (type == HCI_LK_CHANGED_COMBINATION) 330455ed8ca1SJohan Hedberg key->type = old_key_type; 33054748fed2SJohan Hedberg else 33064748fed2SJohan Hedberg key->type = type; 33074748fed2SJohan Hedberg 33087652ff6aSJohan Hedberg if (persistent) 33097652ff6aSJohan Hedberg *persistent = hci_persistent_key(hdev, conn, type, 33107652ff6aSJohan Hedberg old_key_type); 33114df378a1SJohan Hedberg 3312567fa2aaSJohan Hedberg return key; 331355ed8ca1SJohan Hedberg } 331455ed8ca1SJohan Hedberg 3315ca9142b8SJohan Hedberg struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 331635d70271SJohan Hedberg u8 addr_type, u8 type, u8 authenticated, 3317fe39c7b2SMarcel Holtmann u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand) 331875d262c2SVinicius Costa Gomes { 3319c9839a11SVinicius Costa Gomes struct smp_ltk *key, *old_key; 3320e804d25dSJohan Hedberg u8 role = ltk_role(type); 332175d262c2SVinicius Costa Gomes 3322e804d25dSJohan Hedberg old_key = hci_find_ltk_by_addr(hdev, bdaddr, addr_type, role); 3323c9839a11SVinicius Costa Gomes if (old_key) 332475d262c2SVinicius Costa Gomes key = old_key; 3325c9839a11SVinicius Costa Gomes else { 33260a14ab41SJohan Hedberg key = kzalloc(sizeof(*key), GFP_KERNEL); 332775d262c2SVinicius Costa Gomes if (!key) 3328ca9142b8SJohan Hedberg return NULL; 3329c9839a11SVinicius Costa Gomes list_add(&key->list, &hdev->long_term_keys); 333075d262c2SVinicius Costa Gomes } 333175d262c2SVinicius Costa Gomes 333275d262c2SVinicius Costa Gomes bacpy(&key->bdaddr, bdaddr); 3333c9839a11SVinicius Costa Gomes key->bdaddr_type = addr_type; 3334c9839a11SVinicius Costa Gomes memcpy(key->val, tk, sizeof(key->val)); 3335c9839a11SVinicius Costa Gomes key->authenticated = authenticated; 3336c9839a11SVinicius Costa Gomes key->ediv = ediv; 3337fe39c7b2SMarcel Holtmann key->rand = rand; 3338c9839a11SVinicius Costa Gomes key->enc_size = enc_size; 3339c9839a11SVinicius Costa Gomes key->type = type; 334075d262c2SVinicius Costa Gomes 3341ca9142b8SJohan Hedberg return key; 334275d262c2SVinicius Costa Gomes } 334375d262c2SVinicius Costa Gomes 3344ca9142b8SJohan Hedberg struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 3345ca9142b8SJohan Hedberg u8 addr_type, u8 val[16], bdaddr_t *rpa) 3346970c4e46SJohan Hedberg { 3347970c4e46SJohan Hedberg struct smp_irk *irk; 3348970c4e46SJohan Hedberg 3349970c4e46SJohan Hedberg irk = hci_find_irk_by_addr(hdev, bdaddr, addr_type); 3350970c4e46SJohan Hedberg if (!irk) { 3351970c4e46SJohan Hedberg irk = kzalloc(sizeof(*irk), GFP_KERNEL); 3352970c4e46SJohan Hedberg if (!irk) 3353ca9142b8SJohan Hedberg return NULL; 3354970c4e46SJohan Hedberg 3355970c4e46SJohan Hedberg bacpy(&irk->bdaddr, bdaddr); 3356970c4e46SJohan Hedberg irk->addr_type = addr_type; 3357970c4e46SJohan Hedberg 3358970c4e46SJohan Hedberg list_add(&irk->list, &hdev->identity_resolving_keys); 3359970c4e46SJohan Hedberg } 3360970c4e46SJohan Hedberg 3361970c4e46SJohan Hedberg memcpy(irk->val, val, 16); 3362970c4e46SJohan Hedberg bacpy(&irk->rpa, rpa); 3363970c4e46SJohan Hedberg 3364ca9142b8SJohan Hedberg return irk; 3365970c4e46SJohan Hedberg } 3366970c4e46SJohan Hedberg 336755ed8ca1SJohan Hedberg int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr) 336855ed8ca1SJohan Hedberg { 336955ed8ca1SJohan Hedberg struct link_key *key; 337055ed8ca1SJohan Hedberg 337155ed8ca1SJohan Hedberg key = hci_find_link_key(hdev, bdaddr); 337255ed8ca1SJohan Hedberg if (!key) 337355ed8ca1SJohan Hedberg return -ENOENT; 337455ed8ca1SJohan Hedberg 33756ed93dc6SAndrei Emeltchenko BT_DBG("%s removing %pMR", hdev->name, bdaddr); 337655ed8ca1SJohan Hedberg 337755ed8ca1SJohan Hedberg list_del(&key->list); 337855ed8ca1SJohan Hedberg kfree(key); 337955ed8ca1SJohan Hedberg 338055ed8ca1SJohan Hedberg return 0; 338155ed8ca1SJohan Hedberg } 338255ed8ca1SJohan Hedberg 3383e0b2b27eSJohan Hedberg int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type) 3384b899efafSVinicius Costa Gomes { 3385b899efafSVinicius Costa Gomes struct smp_ltk *k, *tmp; 3386c51ffa0bSJohan Hedberg int removed = 0; 3387b899efafSVinicius Costa Gomes 3388b899efafSVinicius Costa Gomes list_for_each_entry_safe(k, tmp, &hdev->long_term_keys, list) { 3389e0b2b27eSJohan Hedberg if (bacmp(bdaddr, &k->bdaddr) || k->bdaddr_type != bdaddr_type) 3390b899efafSVinicius Costa Gomes continue; 3391b899efafSVinicius Costa Gomes 33926ed93dc6SAndrei Emeltchenko BT_DBG("%s removing %pMR", hdev->name, bdaddr); 3393b899efafSVinicius Costa Gomes 3394b899efafSVinicius Costa Gomes list_del(&k->list); 3395b899efafSVinicius Costa Gomes kfree(k); 3396c51ffa0bSJohan Hedberg removed++; 3397b899efafSVinicius Costa Gomes } 3398b899efafSVinicius Costa Gomes 3399c51ffa0bSJohan Hedberg return removed ? 0 : -ENOENT; 3400b899efafSVinicius Costa Gomes } 3401b899efafSVinicius Costa Gomes 3402a7ec7338SJohan Hedberg void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type) 3403a7ec7338SJohan Hedberg { 3404a7ec7338SJohan Hedberg struct smp_irk *k, *tmp; 3405a7ec7338SJohan Hedberg 3406668b7b19SJohan Hedberg list_for_each_entry_safe(k, tmp, &hdev->identity_resolving_keys, list) { 3407a7ec7338SJohan Hedberg if (bacmp(bdaddr, &k->bdaddr) || k->addr_type != addr_type) 3408a7ec7338SJohan Hedberg continue; 3409a7ec7338SJohan Hedberg 3410a7ec7338SJohan Hedberg BT_DBG("%s removing %pMR", hdev->name, bdaddr); 3411a7ec7338SJohan Hedberg 3412a7ec7338SJohan Hedberg list_del(&k->list); 3413a7ec7338SJohan Hedberg kfree(k); 3414a7ec7338SJohan Hedberg } 3415a7ec7338SJohan Hedberg } 3416a7ec7338SJohan Hedberg 34176bd32326SVille Tervo /* HCI command timer function */ 341865cc2b49SMarcel Holtmann static void hci_cmd_timeout(struct work_struct *work) 34196bd32326SVille Tervo { 342065cc2b49SMarcel Holtmann struct hci_dev *hdev = container_of(work, struct hci_dev, 342165cc2b49SMarcel Holtmann cmd_timer.work); 34226bd32326SVille Tervo 3423bda4f23aSAndrei Emeltchenko if (hdev->sent_cmd) { 3424bda4f23aSAndrei Emeltchenko struct hci_command_hdr *sent = (void *) hdev->sent_cmd->data; 3425bda4f23aSAndrei Emeltchenko u16 opcode = __le16_to_cpu(sent->opcode); 3426bda4f23aSAndrei Emeltchenko 3427bda4f23aSAndrei Emeltchenko BT_ERR("%s command 0x%4.4x tx timeout", hdev->name, opcode); 3428bda4f23aSAndrei Emeltchenko } else { 34296bd32326SVille Tervo BT_ERR("%s command tx timeout", hdev->name); 3430bda4f23aSAndrei Emeltchenko } 3431bda4f23aSAndrei Emeltchenko 34326bd32326SVille Tervo atomic_set(&hdev->cmd_cnt, 1); 3433c347b765SGustavo F. Padovan queue_work(hdev->workqueue, &hdev->cmd_work); 34346bd32326SVille Tervo } 34356bd32326SVille Tervo 34362763eda6SSzymon Janc struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 34372763eda6SSzymon Janc bdaddr_t *bdaddr) 34382763eda6SSzymon Janc { 34392763eda6SSzymon Janc struct oob_data *data; 34402763eda6SSzymon Janc 34412763eda6SSzymon Janc list_for_each_entry(data, &hdev->remote_oob_data, list) 34422763eda6SSzymon Janc if (bacmp(bdaddr, &data->bdaddr) == 0) 34432763eda6SSzymon Janc return data; 34442763eda6SSzymon Janc 34452763eda6SSzymon Janc return NULL; 34462763eda6SSzymon Janc } 34472763eda6SSzymon Janc 34482763eda6SSzymon Janc int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr) 34492763eda6SSzymon Janc { 34502763eda6SSzymon Janc struct oob_data *data; 34512763eda6SSzymon Janc 34522763eda6SSzymon Janc data = hci_find_remote_oob_data(hdev, bdaddr); 34532763eda6SSzymon Janc if (!data) 34542763eda6SSzymon Janc return -ENOENT; 34552763eda6SSzymon Janc 34566ed93dc6SAndrei Emeltchenko BT_DBG("%s removing %pMR", hdev->name, bdaddr); 34572763eda6SSzymon Janc 34582763eda6SSzymon Janc list_del(&data->list); 34592763eda6SSzymon Janc kfree(data); 34602763eda6SSzymon Janc 34612763eda6SSzymon Janc return 0; 34622763eda6SSzymon Janc } 34632763eda6SSzymon Janc 346435f7498aSJohan Hedberg void hci_remote_oob_data_clear(struct hci_dev *hdev) 34652763eda6SSzymon Janc { 34662763eda6SSzymon Janc struct oob_data *data, *n; 34672763eda6SSzymon Janc 34682763eda6SSzymon Janc list_for_each_entry_safe(data, n, &hdev->remote_oob_data, list) { 34692763eda6SSzymon Janc list_del(&data->list); 34702763eda6SSzymon Janc kfree(data); 34712763eda6SSzymon Janc } 34722763eda6SSzymon Janc } 34732763eda6SSzymon Janc 34740798872eSMarcel Holtmann int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 34750798872eSMarcel Holtmann u8 *hash, u8 *randomizer) 34762763eda6SSzymon Janc { 34772763eda6SSzymon Janc struct oob_data *data; 34782763eda6SSzymon Janc 34792763eda6SSzymon Janc data = hci_find_remote_oob_data(hdev, bdaddr); 34802763eda6SSzymon Janc if (!data) { 34810a14ab41SJohan Hedberg data = kmalloc(sizeof(*data), GFP_KERNEL); 34822763eda6SSzymon Janc if (!data) 34832763eda6SSzymon Janc return -ENOMEM; 34842763eda6SSzymon Janc 34852763eda6SSzymon Janc bacpy(&data->bdaddr, bdaddr); 34862763eda6SSzymon Janc list_add(&data->list, &hdev->remote_oob_data); 34872763eda6SSzymon Janc } 34882763eda6SSzymon Janc 3489519ca9d0SMarcel Holtmann memcpy(data->hash192, hash, sizeof(data->hash192)); 3490519ca9d0SMarcel Holtmann memcpy(data->randomizer192, randomizer, sizeof(data->randomizer192)); 34912763eda6SSzymon Janc 34920798872eSMarcel Holtmann memset(data->hash256, 0, sizeof(data->hash256)); 34930798872eSMarcel Holtmann memset(data->randomizer256, 0, sizeof(data->randomizer256)); 34940798872eSMarcel Holtmann 34950798872eSMarcel Holtmann BT_DBG("%s for %pMR", hdev->name, bdaddr); 34960798872eSMarcel Holtmann 34970798872eSMarcel Holtmann return 0; 34980798872eSMarcel Holtmann } 34990798872eSMarcel Holtmann 35000798872eSMarcel Holtmann int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 35010798872eSMarcel Holtmann u8 *hash192, u8 *randomizer192, 35020798872eSMarcel Holtmann u8 *hash256, u8 *randomizer256) 35030798872eSMarcel Holtmann { 35040798872eSMarcel Holtmann struct oob_data *data; 35050798872eSMarcel Holtmann 35060798872eSMarcel Holtmann data = hci_find_remote_oob_data(hdev, bdaddr); 35070798872eSMarcel Holtmann if (!data) { 35080a14ab41SJohan Hedberg data = kmalloc(sizeof(*data), GFP_KERNEL); 35090798872eSMarcel Holtmann if (!data) 35100798872eSMarcel Holtmann return -ENOMEM; 35110798872eSMarcel Holtmann 35120798872eSMarcel Holtmann bacpy(&data->bdaddr, bdaddr); 35130798872eSMarcel Holtmann list_add(&data->list, &hdev->remote_oob_data); 35140798872eSMarcel Holtmann } 35150798872eSMarcel Holtmann 35160798872eSMarcel Holtmann memcpy(data->hash192, hash192, sizeof(data->hash192)); 35170798872eSMarcel Holtmann memcpy(data->randomizer192, randomizer192, sizeof(data->randomizer192)); 35180798872eSMarcel Holtmann 35190798872eSMarcel Holtmann memcpy(data->hash256, hash256, sizeof(data->hash256)); 35200798872eSMarcel Holtmann memcpy(data->randomizer256, randomizer256, sizeof(data->randomizer256)); 35210798872eSMarcel Holtmann 35226ed93dc6SAndrei Emeltchenko BT_DBG("%s for %pMR", hdev->name, bdaddr); 35232763eda6SSzymon Janc 35242763eda6SSzymon Janc return 0; 35252763eda6SSzymon Janc } 35262763eda6SSzymon Janc 3527dcc36c16SJohan Hedberg struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *bdaddr_list, 3528b9ee0a78SMarcel Holtmann bdaddr_t *bdaddr, u8 type) 3529b2a66aadSAntti Julku { 3530b2a66aadSAntti Julku struct bdaddr_list *b; 3531b2a66aadSAntti Julku 3532dcc36c16SJohan Hedberg list_for_each_entry(b, bdaddr_list, list) { 3533b9ee0a78SMarcel Holtmann if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type) 3534b2a66aadSAntti Julku return b; 3535b9ee0a78SMarcel Holtmann } 3536b2a66aadSAntti Julku 3537b2a66aadSAntti Julku return NULL; 3538b2a66aadSAntti Julku } 3539b2a66aadSAntti Julku 3540dcc36c16SJohan Hedberg void hci_bdaddr_list_clear(struct list_head *bdaddr_list) 3541b2a66aadSAntti Julku { 3542b2a66aadSAntti Julku struct list_head *p, *n; 3543b2a66aadSAntti Julku 3544dcc36c16SJohan Hedberg list_for_each_safe(p, n, bdaddr_list) { 3545b9ee0a78SMarcel Holtmann struct bdaddr_list *b = list_entry(p, struct bdaddr_list, list); 3546b2a66aadSAntti Julku 3547b2a66aadSAntti Julku list_del(p); 3548b2a66aadSAntti Julku kfree(b); 3549b2a66aadSAntti Julku } 3550b2a66aadSAntti Julku } 3551b2a66aadSAntti Julku 3552dcc36c16SJohan Hedberg int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type) 3553b2a66aadSAntti Julku { 3554b2a66aadSAntti Julku struct bdaddr_list *entry; 3555b2a66aadSAntti Julku 3556b9ee0a78SMarcel Holtmann if (!bacmp(bdaddr, BDADDR_ANY)) 3557b2a66aadSAntti Julku return -EBADF; 3558b2a66aadSAntti Julku 3559dcc36c16SJohan Hedberg if (hci_bdaddr_list_lookup(list, bdaddr, type)) 35605e762444SAntti Julku return -EEXIST; 3561b2a66aadSAntti Julku 356227f70f3eSJohan Hedberg entry = kzalloc(sizeof(*entry), GFP_KERNEL); 35635e762444SAntti Julku if (!entry) 35645e762444SAntti Julku return -ENOMEM; 3565b2a66aadSAntti Julku 3566b2a66aadSAntti Julku bacpy(&entry->bdaddr, bdaddr); 3567b9ee0a78SMarcel Holtmann entry->bdaddr_type = type; 3568b2a66aadSAntti Julku 3569dcc36c16SJohan Hedberg list_add(&entry->list, list); 3570b2a66aadSAntti Julku 35712a8357f2SJohan Hedberg return 0; 3572b2a66aadSAntti Julku } 3573b2a66aadSAntti Julku 3574dcc36c16SJohan Hedberg int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type) 3575b2a66aadSAntti Julku { 3576b2a66aadSAntti Julku struct bdaddr_list *entry; 3577b2a66aadSAntti Julku 357835f7498aSJohan Hedberg if (!bacmp(bdaddr, BDADDR_ANY)) { 3579dcc36c16SJohan Hedberg hci_bdaddr_list_clear(list); 358035f7498aSJohan Hedberg return 0; 358135f7498aSJohan Hedberg } 3582b2a66aadSAntti Julku 3583dcc36c16SJohan Hedberg entry = hci_bdaddr_list_lookup(list, bdaddr, type); 3584d2ab0ac1SMarcel Holtmann if (!entry) 3585d2ab0ac1SMarcel Holtmann return -ENOENT; 3586d2ab0ac1SMarcel Holtmann 3587d2ab0ac1SMarcel Holtmann list_del(&entry->list); 3588d2ab0ac1SMarcel Holtmann kfree(entry); 3589d2ab0ac1SMarcel Holtmann 3590d2ab0ac1SMarcel Holtmann return 0; 3591d2ab0ac1SMarcel Holtmann } 3592d2ab0ac1SMarcel Holtmann 359315819a70SAndre Guedes /* This function requires the caller holds hdev->lock */ 359415819a70SAndre Guedes struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 359515819a70SAndre Guedes bdaddr_t *addr, u8 addr_type) 359615819a70SAndre Guedes { 359715819a70SAndre Guedes struct hci_conn_params *params; 359815819a70SAndre Guedes 3599738f6185SJohan Hedberg /* The conn params list only contains identity addresses */ 3600738f6185SJohan Hedberg if (!hci_is_identity_address(addr, addr_type)) 3601738f6185SJohan Hedberg return NULL; 3602738f6185SJohan Hedberg 360315819a70SAndre Guedes list_for_each_entry(params, &hdev->le_conn_params, list) { 360415819a70SAndre Guedes if (bacmp(¶ms->addr, addr) == 0 && 360515819a70SAndre Guedes params->addr_type == addr_type) { 360615819a70SAndre Guedes return params; 360715819a70SAndre Guedes } 360815819a70SAndre Guedes } 360915819a70SAndre Guedes 361015819a70SAndre Guedes return NULL; 361115819a70SAndre Guedes } 361215819a70SAndre Guedes 3613cef952ceSAndre Guedes static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type) 3614cef952ceSAndre Guedes { 3615cef952ceSAndre Guedes struct hci_conn *conn; 3616cef952ceSAndre Guedes 3617cef952ceSAndre Guedes conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr); 3618cef952ceSAndre Guedes if (!conn) 3619cef952ceSAndre Guedes return false; 3620cef952ceSAndre Guedes 3621cef952ceSAndre Guedes if (conn->dst_type != type) 3622cef952ceSAndre Guedes return false; 3623cef952ceSAndre Guedes 3624cef952ceSAndre Guedes if (conn->state != BT_CONNECTED) 3625cef952ceSAndre Guedes return false; 3626cef952ceSAndre Guedes 3627cef952ceSAndre Guedes return true; 3628cef952ceSAndre Guedes } 3629cef952ceSAndre Guedes 363015819a70SAndre Guedes /* This function requires the caller holds hdev->lock */ 3631501f8827SJohan Hedberg struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 36324b10966fSMarcel Holtmann bdaddr_t *addr, u8 addr_type) 363315819a70SAndre Guedes { 3634912b42efSJohan Hedberg struct hci_conn_params *param; 363515819a70SAndre Guedes 3636738f6185SJohan Hedberg /* The list only contains identity addresses */ 3637738f6185SJohan Hedberg if (!hci_is_identity_address(addr, addr_type)) 3638738f6185SJohan Hedberg return NULL; 363915819a70SAndre Guedes 3640501f8827SJohan Hedberg list_for_each_entry(param, list, action) { 3641912b42efSJohan Hedberg if (bacmp(¶m->addr, addr) == 0 && 3642912b42efSJohan Hedberg param->addr_type == addr_type) 3643912b42efSJohan Hedberg return param; 36444b10966fSMarcel Holtmann } 36454b10966fSMarcel Holtmann 36464b10966fSMarcel Holtmann return NULL; 364715819a70SAndre Guedes } 364815819a70SAndre Guedes 364915819a70SAndre Guedes /* This function requires the caller holds hdev->lock */ 365051d167c0SMarcel Holtmann struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 365151d167c0SMarcel Holtmann bdaddr_t *addr, u8 addr_type) 365215819a70SAndre Guedes { 365315819a70SAndre Guedes struct hci_conn_params *params; 365415819a70SAndre Guedes 3655c46245b3SJohan Hedberg if (!hci_is_identity_address(addr, addr_type)) 365651d167c0SMarcel Holtmann return NULL; 3657a9b0a04cSAndre Guedes 365815819a70SAndre Guedes params = hci_conn_params_lookup(hdev, addr, addr_type); 3659cef952ceSAndre Guedes if (params) 366051d167c0SMarcel Holtmann return params; 366115819a70SAndre Guedes 366215819a70SAndre Guedes params = kzalloc(sizeof(*params), GFP_KERNEL); 366315819a70SAndre Guedes if (!params) { 366415819a70SAndre Guedes BT_ERR("Out of memory"); 366551d167c0SMarcel Holtmann return NULL; 366615819a70SAndre Guedes } 366715819a70SAndre Guedes 366815819a70SAndre Guedes bacpy(¶ms->addr, addr); 366915819a70SAndre Guedes params->addr_type = addr_type; 3670cef952ceSAndre Guedes 3671cef952ceSAndre Guedes list_add(¶ms->list, &hdev->le_conn_params); 367293450c75SJohan Hedberg INIT_LIST_HEAD(¶ms->action); 3673cef952ceSAndre Guedes 3674bf5b3c8bSMarcel Holtmann params->conn_min_interval = hdev->le_conn_min_interval; 3675bf5b3c8bSMarcel Holtmann params->conn_max_interval = hdev->le_conn_max_interval; 3676bf5b3c8bSMarcel Holtmann params->conn_latency = hdev->le_conn_latency; 3677bf5b3c8bSMarcel Holtmann params->supervision_timeout = hdev->le_supv_timeout; 3678bf5b3c8bSMarcel Holtmann params->auto_connect = HCI_AUTO_CONN_DISABLED; 3679bf5b3c8bSMarcel Holtmann 3680bf5b3c8bSMarcel Holtmann BT_DBG("addr %pMR (type %u)", addr, addr_type); 3681bf5b3c8bSMarcel Holtmann 368251d167c0SMarcel Holtmann return params; 3683bf5b3c8bSMarcel Holtmann } 3684bf5b3c8bSMarcel Holtmann 3685bf5b3c8bSMarcel Holtmann /* This function requires the caller holds hdev->lock */ 3686bf5b3c8bSMarcel Holtmann int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, 3687d06b50ceSMarcel Holtmann u8 auto_connect) 368815819a70SAndre Guedes { 368915819a70SAndre Guedes struct hci_conn_params *params; 369015819a70SAndre Guedes 36918c87aae1SMarcel Holtmann params = hci_conn_params_add(hdev, addr, addr_type); 36928c87aae1SMarcel Holtmann if (!params) 36938c87aae1SMarcel Holtmann return -EIO; 369415819a70SAndre Guedes 369542ce26deSJohan Hedberg if (params->auto_connect == auto_connect) 369642ce26deSJohan Hedberg return 0; 369742ce26deSJohan Hedberg 369866f8455aSJohan Hedberg list_del_init(¶ms->action); 369915819a70SAndre Guedes 3700cef952ceSAndre Guedes switch (auto_connect) { 3701cef952ceSAndre Guedes case HCI_AUTO_CONN_DISABLED: 3702cef952ceSAndre Guedes case HCI_AUTO_CONN_LINK_LOSS: 370395305baaSJohan Hedberg hci_update_background_scan(hdev); 3704cef952ceSAndre Guedes break; 3705851efca8SJohan Hedberg case HCI_AUTO_CONN_REPORT: 370695305baaSJohan Hedberg list_add(¶ms->action, &hdev->pend_le_reports); 370795305baaSJohan Hedberg hci_update_background_scan(hdev); 3708851efca8SJohan Hedberg break; 37094b9e7e75SMarcel Holtmann case HCI_AUTO_CONN_DIRECT: 3710cef952ceSAndre Guedes case HCI_AUTO_CONN_ALWAYS: 371195305baaSJohan Hedberg if (!is_connected(hdev, addr, addr_type)) { 371295305baaSJohan Hedberg list_add(¶ms->action, &hdev->pend_le_conns); 371395305baaSJohan Hedberg hci_update_background_scan(hdev); 371495305baaSJohan Hedberg } 3715cef952ceSAndre Guedes break; 3716cef952ceSAndre Guedes } 371715819a70SAndre Guedes 3718851efca8SJohan Hedberg params->auto_connect = auto_connect; 3719851efca8SJohan Hedberg 3720d06b50ceSMarcel Holtmann BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type, 3721d06b50ceSMarcel Holtmann auto_connect); 3722a9b0a04cSAndre Guedes 3723a9b0a04cSAndre Guedes return 0; 372415819a70SAndre Guedes } 372515819a70SAndre Guedes 372615819a70SAndre Guedes /* This function requires the caller holds hdev->lock */ 372715819a70SAndre Guedes void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type) 372815819a70SAndre Guedes { 372915819a70SAndre Guedes struct hci_conn_params *params; 373015819a70SAndre Guedes 373115819a70SAndre Guedes params = hci_conn_params_lookup(hdev, addr, addr_type); 373215819a70SAndre Guedes if (!params) 373315819a70SAndre Guedes return; 373415819a70SAndre Guedes 373595305baaSJohan Hedberg list_del(¶ms->action); 373615819a70SAndre Guedes list_del(¶ms->list); 373715819a70SAndre Guedes kfree(params); 373815819a70SAndre Guedes 373995305baaSJohan Hedberg hci_update_background_scan(hdev); 374095305baaSJohan Hedberg 374115819a70SAndre Guedes BT_DBG("addr %pMR (type %u)", addr, addr_type); 374215819a70SAndre Guedes } 374315819a70SAndre Guedes 374415819a70SAndre Guedes /* This function requires the caller holds hdev->lock */ 374555af49a8SJohan Hedberg void hci_conn_params_clear_disabled(struct hci_dev *hdev) 374615819a70SAndre Guedes { 374715819a70SAndre Guedes struct hci_conn_params *params, *tmp; 374815819a70SAndre Guedes 374915819a70SAndre Guedes list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) { 375055af49a8SJohan Hedberg if (params->auto_connect != HCI_AUTO_CONN_DISABLED) 375155af49a8SJohan Hedberg continue; 375215819a70SAndre Guedes list_del(¶ms->list); 375315819a70SAndre Guedes kfree(params); 375415819a70SAndre Guedes } 375515819a70SAndre Guedes 375655af49a8SJohan Hedberg BT_DBG("All LE disabled connection parameters were removed"); 375755af49a8SJohan Hedberg } 375855af49a8SJohan Hedberg 375955af49a8SJohan Hedberg /* This function requires the caller holds hdev->lock */ 3760373110c5SJohan Hedberg void hci_conn_params_clear_all(struct hci_dev *hdev) 376115819a70SAndre Guedes { 376215819a70SAndre Guedes struct hci_conn_params *params, *tmp; 376315819a70SAndre Guedes 376415819a70SAndre Guedes list_for_each_entry_safe(params, tmp, &hdev->le_conn_params, list) { 3765a2f41a8fSJohan Hedberg list_del(¶ms->action); 376615819a70SAndre Guedes list_del(¶ms->list); 376715819a70SAndre Guedes kfree(params); 376815819a70SAndre Guedes } 376915819a70SAndre Guedes 3770a2f41a8fSJohan Hedberg hci_update_background_scan(hdev); 37711089b67dSMarcel Holtmann 377215819a70SAndre Guedes BT_DBG("All LE connection parameters were removed"); 377315819a70SAndre Guedes } 377415819a70SAndre Guedes 37754c87eaabSAndre Guedes static void inquiry_complete(struct hci_dev *hdev, u8 status) 37767ba8b4beSAndre Guedes { 37774c87eaabSAndre Guedes if (status) { 37784c87eaabSAndre Guedes BT_ERR("Failed to start inquiry: status %d", status); 37797ba8b4beSAndre Guedes 37804c87eaabSAndre Guedes hci_dev_lock(hdev); 37814c87eaabSAndre Guedes hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 37824c87eaabSAndre Guedes hci_dev_unlock(hdev); 37834c87eaabSAndre Guedes return; 37844c87eaabSAndre Guedes } 37857ba8b4beSAndre Guedes } 37867ba8b4beSAndre Guedes 37874c87eaabSAndre Guedes static void le_scan_disable_work_complete(struct hci_dev *hdev, u8 status) 37887ba8b4beSAndre Guedes { 37894c87eaabSAndre Guedes /* General inquiry access code (GIAC) */ 37904c87eaabSAndre Guedes u8 lap[3] = { 0x33, 0x8b, 0x9e }; 37914c87eaabSAndre Guedes struct hci_request req; 37924c87eaabSAndre Guedes struct hci_cp_inquiry cp; 37937ba8b4beSAndre Guedes int err; 37947ba8b4beSAndre Guedes 37954c87eaabSAndre Guedes if (status) { 37964c87eaabSAndre Guedes BT_ERR("Failed to disable LE scanning: status %d", status); 37974c87eaabSAndre Guedes return; 37987ba8b4beSAndre Guedes } 37997ba8b4beSAndre Guedes 38004c87eaabSAndre Guedes switch (hdev->discovery.type) { 38014c87eaabSAndre Guedes case DISCOV_TYPE_LE: 38024c87eaabSAndre Guedes hci_dev_lock(hdev); 38034c87eaabSAndre Guedes hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 38044c87eaabSAndre Guedes hci_dev_unlock(hdev); 38054c87eaabSAndre Guedes break; 38067dbfac1dSAndre Guedes 38074c87eaabSAndre Guedes case DISCOV_TYPE_INTERLEAVED: 38084c87eaabSAndre Guedes hci_req_init(&req, hdev); 38097dbfac1dSAndre Guedes 38107dbfac1dSAndre Guedes memset(&cp, 0, sizeof(cp)); 38114c87eaabSAndre Guedes memcpy(&cp.lap, lap, sizeof(cp.lap)); 38124c87eaabSAndre Guedes cp.length = DISCOV_INTERLEAVED_INQUIRY_LEN; 38134c87eaabSAndre Guedes hci_req_add(&req, HCI_OP_INQUIRY, sizeof(cp), &cp); 38144c87eaabSAndre Guedes 38154c87eaabSAndre Guedes hci_dev_lock(hdev); 38164c87eaabSAndre Guedes 38174c87eaabSAndre Guedes hci_inquiry_cache_flush(hdev); 38184c87eaabSAndre Guedes 38194c87eaabSAndre Guedes err = hci_req_run(&req, inquiry_complete); 38204c87eaabSAndre Guedes if (err) { 38214c87eaabSAndre Guedes BT_ERR("Inquiry request failed: err %d", err); 38224c87eaabSAndre Guedes hci_discovery_set_state(hdev, DISCOVERY_STOPPED); 38237dbfac1dSAndre Guedes } 38247dbfac1dSAndre Guedes 38254c87eaabSAndre Guedes hci_dev_unlock(hdev); 38264c87eaabSAndre Guedes break; 38274c87eaabSAndre Guedes } 38287dbfac1dSAndre Guedes } 38297dbfac1dSAndre Guedes 38307ba8b4beSAndre Guedes static void le_scan_disable_work(struct work_struct *work) 38317ba8b4beSAndre Guedes { 38327ba8b4beSAndre Guedes struct hci_dev *hdev = container_of(work, struct hci_dev, 38337ba8b4beSAndre Guedes le_scan_disable.work); 38344c87eaabSAndre Guedes struct hci_request req; 38354c87eaabSAndre Guedes int err; 38367ba8b4beSAndre Guedes 38377ba8b4beSAndre Guedes BT_DBG("%s", hdev->name); 38387ba8b4beSAndre Guedes 38394c87eaabSAndre Guedes hci_req_init(&req, hdev); 38407ba8b4beSAndre Guedes 3841b1efcc28SAndre Guedes hci_req_add_le_scan_disable(&req); 38427ba8b4beSAndre Guedes 38434c87eaabSAndre Guedes err = hci_req_run(&req, le_scan_disable_work_complete); 38444c87eaabSAndre Guedes if (err) 38454c87eaabSAndre Guedes BT_ERR("Disable LE scanning request failed: err %d", err); 384628b75a89SAndre Guedes } 384728b75a89SAndre Guedes 38488d97250eSJohan Hedberg static void set_random_addr(struct hci_request *req, bdaddr_t *rpa) 38498d97250eSJohan Hedberg { 38508d97250eSJohan Hedberg struct hci_dev *hdev = req->hdev; 38518d97250eSJohan Hedberg 38528d97250eSJohan Hedberg /* If we're advertising or initiating an LE connection we can't 38538d97250eSJohan Hedberg * go ahead and change the random address at this time. This is 38548d97250eSJohan Hedberg * because the eventual initiator address used for the 38558d97250eSJohan Hedberg * subsequently created connection will be undefined (some 38568d97250eSJohan Hedberg * controllers use the new address and others the one we had 38578d97250eSJohan Hedberg * when the operation started). 38588d97250eSJohan Hedberg * 38598d97250eSJohan Hedberg * In this kind of scenario skip the update and let the random 38608d97250eSJohan Hedberg * address be updated at the next cycle. 38618d97250eSJohan Hedberg */ 38625ce194c4SJohan Hedberg if (test_bit(HCI_LE_ADV, &hdev->dev_flags) || 38638d97250eSJohan Hedberg hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT)) { 38648d97250eSJohan Hedberg BT_DBG("Deferring random address update"); 38658d97250eSJohan Hedberg return; 38668d97250eSJohan Hedberg } 38678d97250eSJohan Hedberg 38688d97250eSJohan Hedberg hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6, rpa); 38698d97250eSJohan Hedberg } 38708d97250eSJohan Hedberg 387194b1fc92SMarcel Holtmann int hci_update_random_address(struct hci_request *req, bool require_privacy, 387294b1fc92SMarcel Holtmann u8 *own_addr_type) 3873ebd3a747SJohan Hedberg { 3874ebd3a747SJohan Hedberg struct hci_dev *hdev = req->hdev; 3875ebd3a747SJohan Hedberg int err; 3876ebd3a747SJohan Hedberg 3877ebd3a747SJohan Hedberg /* If privacy is enabled use a resolvable private address. If 38782b5224dcSMarcel Holtmann * current RPA has expired or there is something else than 38792b5224dcSMarcel Holtmann * the current RPA in use, then generate a new one. 3880ebd3a747SJohan Hedberg */ 3881ebd3a747SJohan Hedberg if (test_bit(HCI_PRIVACY, &hdev->dev_flags)) { 3882ebd3a747SJohan Hedberg int to; 3883ebd3a747SJohan Hedberg 3884ebd3a747SJohan Hedberg *own_addr_type = ADDR_LE_DEV_RANDOM; 3885ebd3a747SJohan Hedberg 3886ebd3a747SJohan Hedberg if (!test_and_clear_bit(HCI_RPA_EXPIRED, &hdev->dev_flags) && 38872b5224dcSMarcel Holtmann !bacmp(&hdev->random_addr, &hdev->rpa)) 3888ebd3a747SJohan Hedberg return 0; 3889ebd3a747SJohan Hedberg 3890fabed38fSJohan Hedberg if (!hdev->tfm_aes) { 3891fabed38fSJohan Hedberg BT_ERR("%s crypto not available to generate RPA", 3892fabed38fSJohan Hedberg hdev->name); 3893fabed38fSJohan Hedberg return -EOPNOTSUPP; 3894fabed38fSJohan Hedberg } 3895fabed38fSJohan Hedberg 38962b5224dcSMarcel Holtmann err = smp_generate_rpa(hdev->tfm_aes, hdev->irk, &hdev->rpa); 3897ebd3a747SJohan Hedberg if (err < 0) { 3898ebd3a747SJohan Hedberg BT_ERR("%s failed to generate new RPA", hdev->name); 3899ebd3a747SJohan Hedberg return err; 3900ebd3a747SJohan Hedberg } 3901ebd3a747SJohan Hedberg 39028d97250eSJohan Hedberg set_random_addr(req, &hdev->rpa); 3903ebd3a747SJohan Hedberg 3904ebd3a747SJohan Hedberg to = msecs_to_jiffies(hdev->rpa_timeout * 1000); 3905ebd3a747SJohan Hedberg queue_delayed_work(hdev->workqueue, &hdev->rpa_expired, to); 3906ebd3a747SJohan Hedberg 3907ebd3a747SJohan Hedberg return 0; 3908ebd3a747SJohan Hedberg } 3909ebd3a747SJohan Hedberg 391094b1fc92SMarcel Holtmann /* In case of required privacy without resolvable private address, 391194b1fc92SMarcel Holtmann * use an unresolvable private address. This is useful for active 391294b1fc92SMarcel Holtmann * scanning and non-connectable advertising. 391394b1fc92SMarcel Holtmann */ 391494b1fc92SMarcel Holtmann if (require_privacy) { 391594b1fc92SMarcel Holtmann bdaddr_t urpa; 391694b1fc92SMarcel Holtmann 391794b1fc92SMarcel Holtmann get_random_bytes(&urpa, 6); 391894b1fc92SMarcel Holtmann urpa.b[5] &= 0x3f; /* Clear two most significant bits */ 391994b1fc92SMarcel Holtmann 392094b1fc92SMarcel Holtmann *own_addr_type = ADDR_LE_DEV_RANDOM; 39218d97250eSJohan Hedberg set_random_addr(req, &urpa); 392294b1fc92SMarcel Holtmann return 0; 392394b1fc92SMarcel Holtmann } 392494b1fc92SMarcel Holtmann 3925ebd3a747SJohan Hedberg /* If forcing static address is in use or there is no public 3926ebd3a747SJohan Hedberg * address use the static address as random address (but skip 3927ebd3a747SJohan Hedberg * the HCI command if the current random address is already the 3928ebd3a747SJohan Hedberg * static one. 3929ebd3a747SJohan Hedberg */ 3930111902f7SMarcel Holtmann if (test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) || 3931ebd3a747SJohan Hedberg !bacmp(&hdev->bdaddr, BDADDR_ANY)) { 3932ebd3a747SJohan Hedberg *own_addr_type = ADDR_LE_DEV_RANDOM; 3933ebd3a747SJohan Hedberg if (bacmp(&hdev->static_addr, &hdev->random_addr)) 3934ebd3a747SJohan Hedberg hci_req_add(req, HCI_OP_LE_SET_RANDOM_ADDR, 6, 3935ebd3a747SJohan Hedberg &hdev->static_addr); 3936ebd3a747SJohan Hedberg return 0; 3937ebd3a747SJohan Hedberg } 3938ebd3a747SJohan Hedberg 3939ebd3a747SJohan Hedberg /* Neither privacy nor static address is being used so use a 3940ebd3a747SJohan Hedberg * public address. 3941ebd3a747SJohan Hedberg */ 3942ebd3a747SJohan Hedberg *own_addr_type = ADDR_LE_DEV_PUBLIC; 3943ebd3a747SJohan Hedberg 3944ebd3a747SJohan Hedberg return 0; 3945ebd3a747SJohan Hedberg } 3946ebd3a747SJohan Hedberg 3947a1f4c318SJohan Hedberg /* Copy the Identity Address of the controller. 3948a1f4c318SJohan Hedberg * 3949a1f4c318SJohan Hedberg * If the controller has a public BD_ADDR, then by default use that one. 3950a1f4c318SJohan Hedberg * If this is a LE only controller without a public address, default to 3951a1f4c318SJohan Hedberg * the static random address. 3952a1f4c318SJohan Hedberg * 3953a1f4c318SJohan Hedberg * For debugging purposes it is possible to force controllers with a 3954a1f4c318SJohan Hedberg * public address to use the static random address instead. 3955a1f4c318SJohan Hedberg */ 3956a1f4c318SJohan Hedberg void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 3957a1f4c318SJohan Hedberg u8 *bdaddr_type) 3958a1f4c318SJohan Hedberg { 3959111902f7SMarcel Holtmann if (test_bit(HCI_FORCE_STATIC_ADDR, &hdev->dbg_flags) || 3960a1f4c318SJohan Hedberg !bacmp(&hdev->bdaddr, BDADDR_ANY)) { 3961a1f4c318SJohan Hedberg bacpy(bdaddr, &hdev->static_addr); 3962a1f4c318SJohan Hedberg *bdaddr_type = ADDR_LE_DEV_RANDOM; 3963a1f4c318SJohan Hedberg } else { 3964a1f4c318SJohan Hedberg bacpy(bdaddr, &hdev->bdaddr); 3965a1f4c318SJohan Hedberg *bdaddr_type = ADDR_LE_DEV_PUBLIC; 3966a1f4c318SJohan Hedberg } 3967a1f4c318SJohan Hedberg } 3968a1f4c318SJohan Hedberg 39699be0dab7SDavid Herrmann /* Alloc HCI device */ 39709be0dab7SDavid Herrmann struct hci_dev *hci_alloc_dev(void) 39719be0dab7SDavid Herrmann { 39729be0dab7SDavid Herrmann struct hci_dev *hdev; 39739be0dab7SDavid Herrmann 397427f70f3eSJohan Hedberg hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); 39759be0dab7SDavid Herrmann if (!hdev) 39769be0dab7SDavid Herrmann return NULL; 39779be0dab7SDavid Herrmann 3978b1b813d4SDavid Herrmann hdev->pkt_type = (HCI_DM1 | HCI_DH1 | HCI_HV1); 3979b1b813d4SDavid Herrmann hdev->esco_type = (ESCO_HV1); 3980b1b813d4SDavid Herrmann hdev->link_mode = (HCI_LM_ACCEPT); 3981b4cb9fb2SMarcel Holtmann hdev->num_iac = 0x01; /* One IAC support is mandatory */ 3982b1b813d4SDavid Herrmann hdev->io_capability = 0x03; /* No Input No Output */ 398396c2103aSMarcel Holtmann hdev->manufacturer = 0xffff; /* Default to internal use */ 3984bbaf444aSJohan Hedberg hdev->inq_tx_power = HCI_TX_POWER_INVALID; 3985bbaf444aSJohan Hedberg hdev->adv_tx_power = HCI_TX_POWER_INVALID; 3986b1b813d4SDavid Herrmann 3987b1b813d4SDavid Herrmann hdev->sniff_max_interval = 800; 3988b1b813d4SDavid Herrmann hdev->sniff_min_interval = 80; 3989b1b813d4SDavid Herrmann 39903f959d46SMarcel Holtmann hdev->le_adv_channel_map = 0x07; 3991628531c9SGeorg Lukas hdev->le_adv_min_interval = 0x0800; 3992628531c9SGeorg Lukas hdev->le_adv_max_interval = 0x0800; 3993bef64738SMarcel Holtmann hdev->le_scan_interval = 0x0060; 3994bef64738SMarcel Holtmann hdev->le_scan_window = 0x0030; 39954e70c7e7SMarcel Holtmann hdev->le_conn_min_interval = 0x0028; 39964e70c7e7SMarcel Holtmann hdev->le_conn_max_interval = 0x0038; 399704fb7d90SMarcel Holtmann hdev->le_conn_latency = 0x0000; 399804fb7d90SMarcel Holtmann hdev->le_supv_timeout = 0x002a; 3999bef64738SMarcel Holtmann 4000d6bfd59cSJohan Hedberg hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT; 4001b9a7a61eSLukasz Rymanowski hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT; 400231ad1691SAndrzej Kaczmarek hdev->conn_info_min_age = DEFAULT_CONN_INFO_MIN_AGE; 400331ad1691SAndrzej Kaczmarek hdev->conn_info_max_age = DEFAULT_CONN_INFO_MAX_AGE; 4004d6bfd59cSJohan Hedberg 4005b1b813d4SDavid Herrmann mutex_init(&hdev->lock); 4006b1b813d4SDavid Herrmann mutex_init(&hdev->req_lock); 4007b1b813d4SDavid Herrmann 4008b1b813d4SDavid Herrmann INIT_LIST_HEAD(&hdev->mgmt_pending); 4009b1b813d4SDavid Herrmann INIT_LIST_HEAD(&hdev->blacklist); 40106659358eSJohan Hedberg INIT_LIST_HEAD(&hdev->whitelist); 4011b1b813d4SDavid Herrmann INIT_LIST_HEAD(&hdev->uuids); 4012b1b813d4SDavid Herrmann INIT_LIST_HEAD(&hdev->link_keys); 4013b1b813d4SDavid Herrmann INIT_LIST_HEAD(&hdev->long_term_keys); 4014970c4e46SJohan Hedberg INIT_LIST_HEAD(&hdev->identity_resolving_keys); 4015b1b813d4SDavid Herrmann INIT_LIST_HEAD(&hdev->remote_oob_data); 4016d2ab0ac1SMarcel Holtmann INIT_LIST_HEAD(&hdev->le_white_list); 401715819a70SAndre Guedes INIT_LIST_HEAD(&hdev->le_conn_params); 401877a77a30SAndre Guedes INIT_LIST_HEAD(&hdev->pend_le_conns); 401966f8455aSJohan Hedberg INIT_LIST_HEAD(&hdev->pend_le_reports); 40206b536b5eSAndrei Emeltchenko INIT_LIST_HEAD(&hdev->conn_hash.list); 4021b1b813d4SDavid Herrmann 4022b1b813d4SDavid Herrmann INIT_WORK(&hdev->rx_work, hci_rx_work); 4023b1b813d4SDavid Herrmann INIT_WORK(&hdev->cmd_work, hci_cmd_work); 4024b1b813d4SDavid Herrmann INIT_WORK(&hdev->tx_work, hci_tx_work); 4025b1b813d4SDavid Herrmann INIT_WORK(&hdev->power_on, hci_power_on); 4026b1b813d4SDavid Herrmann 4027b1b813d4SDavid Herrmann INIT_DELAYED_WORK(&hdev->power_off, hci_power_off); 4028b1b813d4SDavid Herrmann INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off); 4029b1b813d4SDavid Herrmann INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work); 4030b1b813d4SDavid Herrmann 4031b1b813d4SDavid Herrmann skb_queue_head_init(&hdev->rx_q); 4032b1b813d4SDavid Herrmann skb_queue_head_init(&hdev->cmd_q); 4033b1b813d4SDavid Herrmann skb_queue_head_init(&hdev->raw_q); 4034b1b813d4SDavid Herrmann 4035b1b813d4SDavid Herrmann init_waitqueue_head(&hdev->req_wait_q); 4036b1b813d4SDavid Herrmann 403765cc2b49SMarcel Holtmann INIT_DELAYED_WORK(&hdev->cmd_timer, hci_cmd_timeout); 4038b1b813d4SDavid Herrmann 4039b1b813d4SDavid Herrmann hci_init_sysfs(hdev); 4040b1b813d4SDavid Herrmann discovery_init(hdev); 40419be0dab7SDavid Herrmann 40429be0dab7SDavid Herrmann return hdev; 40439be0dab7SDavid Herrmann } 40449be0dab7SDavid Herrmann EXPORT_SYMBOL(hci_alloc_dev); 40459be0dab7SDavid Herrmann 40469be0dab7SDavid Herrmann /* Free HCI device */ 40479be0dab7SDavid Herrmann void hci_free_dev(struct hci_dev *hdev) 40489be0dab7SDavid Herrmann { 40499be0dab7SDavid Herrmann /* will free via device release */ 40509be0dab7SDavid Herrmann put_device(&hdev->dev); 40519be0dab7SDavid Herrmann } 40529be0dab7SDavid Herrmann EXPORT_SYMBOL(hci_free_dev); 40539be0dab7SDavid Herrmann 40541da177e4SLinus Torvalds /* Register HCI device */ 40551da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev) 40561da177e4SLinus Torvalds { 4057b1b813d4SDavid Herrmann int id, error; 40581da177e4SLinus Torvalds 405974292d5aSMarcel Holtmann if (!hdev->open || !hdev->close || !hdev->send) 40601da177e4SLinus Torvalds return -EINVAL; 40611da177e4SLinus Torvalds 406208add513SMat Martineau /* Do not allow HCI_AMP devices to register at index 0, 406308add513SMat Martineau * so the index can be used as the AMP controller ID. 406408add513SMat Martineau */ 40653df92b31SSasha Levin switch (hdev->dev_type) { 40663df92b31SSasha Levin case HCI_BREDR: 40673df92b31SSasha Levin id = ida_simple_get(&hci_index_ida, 0, 0, GFP_KERNEL); 40681da177e4SLinus Torvalds break; 40693df92b31SSasha Levin case HCI_AMP: 40703df92b31SSasha Levin id = ida_simple_get(&hci_index_ida, 1, 0, GFP_KERNEL); 40713df92b31SSasha Levin break; 40723df92b31SSasha Levin default: 40733df92b31SSasha Levin return -EINVAL; 40741da177e4SLinus Torvalds } 40751da177e4SLinus Torvalds 40763df92b31SSasha Levin if (id < 0) 40773df92b31SSasha Levin return id; 40783df92b31SSasha Levin 40791da177e4SLinus Torvalds sprintf(hdev->name, "hci%d", id); 40801da177e4SLinus Torvalds hdev->id = id; 40812d8b3a11SAndrei Emeltchenko 40822d8b3a11SAndrei Emeltchenko BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); 40832d8b3a11SAndrei Emeltchenko 4084d8537548SKees Cook hdev->workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND | 4085d8537548SKees Cook WQ_MEM_RECLAIM, 1, hdev->name); 408633ca954dSDavid Herrmann if (!hdev->workqueue) { 408733ca954dSDavid Herrmann error = -ENOMEM; 408833ca954dSDavid Herrmann goto err; 408933ca954dSDavid Herrmann } 4090f48fd9c8SMarcel Holtmann 4091d8537548SKees Cook hdev->req_workqueue = alloc_workqueue("%s", WQ_HIGHPRI | WQ_UNBOUND | 4092d8537548SKees Cook WQ_MEM_RECLAIM, 1, hdev->name); 40936ead1bbcSJohan Hedberg if (!hdev->req_workqueue) { 40946ead1bbcSJohan Hedberg destroy_workqueue(hdev->workqueue); 40956ead1bbcSJohan Hedberg error = -ENOMEM; 40966ead1bbcSJohan Hedberg goto err; 40976ead1bbcSJohan Hedberg } 40986ead1bbcSJohan Hedberg 40990153e2ecSMarcel Holtmann if (!IS_ERR_OR_NULL(bt_debugfs)) 41000153e2ecSMarcel Holtmann hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs); 41010153e2ecSMarcel Holtmann 4102bdc3e0f1SMarcel Holtmann dev_set_name(&hdev->dev, "%s", hdev->name); 4103bdc3e0f1SMarcel Holtmann 4104bdc3e0f1SMarcel Holtmann error = device_add(&hdev->dev); 410533ca954dSDavid Herrmann if (error < 0) 410654506918SJohan Hedberg goto err_wqueue; 41071da177e4SLinus Torvalds 4108611b30f7SMarcel Holtmann hdev->rfkill = rfkill_alloc(hdev->name, &hdev->dev, 4109a8c5fb1aSGustavo Padovan RFKILL_TYPE_BLUETOOTH, &hci_rfkill_ops, 4110a8c5fb1aSGustavo Padovan hdev); 4111611b30f7SMarcel Holtmann if (hdev->rfkill) { 4112611b30f7SMarcel Holtmann if (rfkill_register(hdev->rfkill) < 0) { 4113611b30f7SMarcel Holtmann rfkill_destroy(hdev->rfkill); 4114611b30f7SMarcel Holtmann hdev->rfkill = NULL; 4115611b30f7SMarcel Holtmann } 4116611b30f7SMarcel Holtmann } 4117611b30f7SMarcel Holtmann 41185e130367SJohan Hedberg if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) 41195e130367SJohan Hedberg set_bit(HCI_RFKILLED, &hdev->dev_flags); 41205e130367SJohan Hedberg 4121a8b2d5c2SJohan Hedberg set_bit(HCI_SETUP, &hdev->dev_flags); 4122004b0258SMarcel Holtmann set_bit(HCI_AUTO_OFF, &hdev->dev_flags); 4123ce2be9acSAndrei Emeltchenko 412401cd3404SMarcel Holtmann if (hdev->dev_type == HCI_BREDR) { 412556f87901SJohan Hedberg /* Assume BR/EDR support until proven otherwise (such as 412656f87901SJohan Hedberg * through reading supported features during init. 412756f87901SJohan Hedberg */ 412856f87901SJohan Hedberg set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); 412956f87901SJohan Hedberg } 4130ce2be9acSAndrei Emeltchenko 4131fcee3377SGustavo Padovan write_lock(&hci_dev_list_lock); 4132fcee3377SGustavo Padovan list_add(&hdev->list, &hci_dev_list); 4133fcee3377SGustavo Padovan write_unlock(&hci_dev_list_lock); 4134fcee3377SGustavo Padovan 41354a964404SMarcel Holtmann /* Devices that are marked for raw-only usage are unconfigured 41364a964404SMarcel Holtmann * and should not be included in normal operation. 4137fee746b0SMarcel Holtmann */ 4138fee746b0SMarcel Holtmann if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) 41394a964404SMarcel Holtmann set_bit(HCI_UNCONFIGURED, &hdev->dev_flags); 4140fee746b0SMarcel Holtmann 41411da177e4SLinus Torvalds hci_notify(hdev, HCI_DEV_REG); 4142dc946bd8SDavid Herrmann hci_dev_hold(hdev); 41431da177e4SLinus Torvalds 414419202573SJohan Hedberg queue_work(hdev->req_workqueue, &hdev->power_on); 4145fbe96d6fSMarcel Holtmann 41461da177e4SLinus Torvalds return id; 4147f48fd9c8SMarcel Holtmann 414833ca954dSDavid Herrmann err_wqueue: 414933ca954dSDavid Herrmann destroy_workqueue(hdev->workqueue); 41506ead1bbcSJohan Hedberg destroy_workqueue(hdev->req_workqueue); 415133ca954dSDavid Herrmann err: 41523df92b31SSasha Levin ida_simple_remove(&hci_index_ida, hdev->id); 4153f48fd9c8SMarcel Holtmann 415433ca954dSDavid Herrmann return error; 41551da177e4SLinus Torvalds } 41561da177e4SLinus Torvalds EXPORT_SYMBOL(hci_register_dev); 41571da177e4SLinus Torvalds 41581da177e4SLinus Torvalds /* Unregister HCI device */ 415959735631SDavid Herrmann void hci_unregister_dev(struct hci_dev *hdev) 41601da177e4SLinus Torvalds { 41613df92b31SSasha Levin int i, id; 4162ef222013SMarcel Holtmann 4163c13854ceSMarcel Holtmann BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); 41641da177e4SLinus Torvalds 416594324962SJohan Hovold set_bit(HCI_UNREGISTER, &hdev->dev_flags); 416694324962SJohan Hovold 41673df92b31SSasha Levin id = hdev->id; 41683df92b31SSasha Levin 4169f20d09d5SGustavo F. Padovan write_lock(&hci_dev_list_lock); 41701da177e4SLinus Torvalds list_del(&hdev->list); 4171f20d09d5SGustavo F. Padovan write_unlock(&hci_dev_list_lock); 41721da177e4SLinus Torvalds 41731da177e4SLinus Torvalds hci_dev_do_close(hdev); 41741da177e4SLinus Torvalds 4175cd4c5391SSuraj Sumangala for (i = 0; i < NUM_REASSEMBLY; i++) 4176ef222013SMarcel Holtmann kfree_skb(hdev->reassembly[i]); 4177ef222013SMarcel Holtmann 4178b9b5ef18SGustavo Padovan cancel_work_sync(&hdev->power_on); 4179b9b5ef18SGustavo Padovan 4180ab81cbf9SJohan Hedberg if (!test_bit(HCI_INIT, &hdev->flags) && 4181d603b76bSMarcel Holtmann !test_bit(HCI_SETUP, &hdev->dev_flags) && 4182d603b76bSMarcel Holtmann !test_bit(HCI_CONFIG, &hdev->dev_flags)) { 418309fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 4184744cf19eSJohan Hedberg mgmt_index_removed(hdev); 418509fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 418656e5cb86SJohan Hedberg } 4187ab81cbf9SJohan Hedberg 41882e58ef3eSJohan Hedberg /* mgmt_index_removed should take care of emptying the 41892e58ef3eSJohan Hedberg * pending list */ 41902e58ef3eSJohan Hedberg BUG_ON(!list_empty(&hdev->mgmt_pending)); 41912e58ef3eSJohan Hedberg 41921da177e4SLinus Torvalds hci_notify(hdev, HCI_DEV_UNREG); 41931da177e4SLinus Torvalds 4194611b30f7SMarcel Holtmann if (hdev->rfkill) { 4195611b30f7SMarcel Holtmann rfkill_unregister(hdev->rfkill); 4196611b30f7SMarcel Holtmann rfkill_destroy(hdev->rfkill); 4197611b30f7SMarcel Holtmann } 4198611b30f7SMarcel Holtmann 4199711eafe3SJohan Hedberg smp_unregister(hdev); 420099780a7bSJohan Hedberg 4201bdc3e0f1SMarcel Holtmann device_del(&hdev->dev); 4202147e2d59SDave Young 42030153e2ecSMarcel Holtmann debugfs_remove_recursive(hdev->debugfs); 42040153e2ecSMarcel Holtmann 4205f48fd9c8SMarcel Holtmann destroy_workqueue(hdev->workqueue); 42066ead1bbcSJohan Hedberg destroy_workqueue(hdev->req_workqueue); 4207f48fd9c8SMarcel Holtmann 420809fd0de5SGustavo F. Padovan hci_dev_lock(hdev); 4209dcc36c16SJohan Hedberg hci_bdaddr_list_clear(&hdev->blacklist); 42106659358eSJohan Hedberg hci_bdaddr_list_clear(&hdev->whitelist); 42112aeb9a1aSJohan Hedberg hci_uuids_clear(hdev); 421255ed8ca1SJohan Hedberg hci_link_keys_clear(hdev); 4213b899efafSVinicius Costa Gomes hci_smp_ltks_clear(hdev); 4214970c4e46SJohan Hedberg hci_smp_irks_clear(hdev); 42152763eda6SSzymon Janc hci_remote_oob_data_clear(hdev); 4216dcc36c16SJohan Hedberg hci_bdaddr_list_clear(&hdev->le_white_list); 4217373110c5SJohan Hedberg hci_conn_params_clear_all(hdev); 421809fd0de5SGustavo F. Padovan hci_dev_unlock(hdev); 4219e2e0cacbSJohan Hedberg 4220dc946bd8SDavid Herrmann hci_dev_put(hdev); 42213df92b31SSasha Levin 42223df92b31SSasha Levin ida_simple_remove(&hci_index_ida, id); 42231da177e4SLinus Torvalds } 42241da177e4SLinus Torvalds EXPORT_SYMBOL(hci_unregister_dev); 42251da177e4SLinus Torvalds 42261da177e4SLinus Torvalds /* Suspend HCI device */ 42271da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev) 42281da177e4SLinus Torvalds { 42291da177e4SLinus Torvalds hci_notify(hdev, HCI_DEV_SUSPEND); 42301da177e4SLinus Torvalds return 0; 42311da177e4SLinus Torvalds } 42321da177e4SLinus Torvalds EXPORT_SYMBOL(hci_suspend_dev); 42331da177e4SLinus Torvalds 42341da177e4SLinus Torvalds /* Resume HCI device */ 42351da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev) 42361da177e4SLinus Torvalds { 42371da177e4SLinus Torvalds hci_notify(hdev, HCI_DEV_RESUME); 42381da177e4SLinus Torvalds return 0; 42391da177e4SLinus Torvalds } 42401da177e4SLinus Torvalds EXPORT_SYMBOL(hci_resume_dev); 42411da177e4SLinus Torvalds 424276bca880SMarcel Holtmann /* Receive frame from HCI drivers */ 4243e1a26170SMarcel Holtmann int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb) 424476bca880SMarcel Holtmann { 424576bca880SMarcel Holtmann if (!hdev || (!test_bit(HCI_UP, &hdev->flags) 424676bca880SMarcel Holtmann && !test_bit(HCI_INIT, &hdev->flags))) { 424776bca880SMarcel Holtmann kfree_skb(skb); 424876bca880SMarcel Holtmann return -ENXIO; 424976bca880SMarcel Holtmann } 425076bca880SMarcel Holtmann 4251d82603c6SJorrit Schippers /* Incoming skb */ 425276bca880SMarcel Holtmann bt_cb(skb)->incoming = 1; 425376bca880SMarcel Holtmann 425476bca880SMarcel Holtmann /* Time stamp */ 425576bca880SMarcel Holtmann __net_timestamp(skb); 425676bca880SMarcel Holtmann 425776bca880SMarcel Holtmann skb_queue_tail(&hdev->rx_q, skb); 4258b78752ccSMarcel Holtmann queue_work(hdev->workqueue, &hdev->rx_work); 4259c78ae283SMarcel Holtmann 426076bca880SMarcel Holtmann return 0; 426176bca880SMarcel Holtmann } 426276bca880SMarcel Holtmann EXPORT_SYMBOL(hci_recv_frame); 426376bca880SMarcel Holtmann 426433e882a5SSuraj Sumangala static int hci_reassembly(struct hci_dev *hdev, int type, void *data, 42651e429f38SGustavo F. Padovan int count, __u8 index) 426633e882a5SSuraj Sumangala { 426733e882a5SSuraj Sumangala int len = 0; 426833e882a5SSuraj Sumangala int hlen = 0; 426933e882a5SSuraj Sumangala int remain = count; 427033e882a5SSuraj Sumangala struct sk_buff *skb; 427133e882a5SSuraj Sumangala struct bt_skb_cb *scb; 427233e882a5SSuraj Sumangala 427333e882a5SSuraj Sumangala if ((type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) || 427433e882a5SSuraj Sumangala index >= NUM_REASSEMBLY) 427533e882a5SSuraj Sumangala return -EILSEQ; 427633e882a5SSuraj Sumangala 427733e882a5SSuraj Sumangala skb = hdev->reassembly[index]; 427833e882a5SSuraj Sumangala 427933e882a5SSuraj Sumangala if (!skb) { 428033e882a5SSuraj Sumangala switch (type) { 428133e882a5SSuraj Sumangala case HCI_ACLDATA_PKT: 428233e882a5SSuraj Sumangala len = HCI_MAX_FRAME_SIZE; 428333e882a5SSuraj Sumangala hlen = HCI_ACL_HDR_SIZE; 428433e882a5SSuraj Sumangala break; 428533e882a5SSuraj Sumangala case HCI_EVENT_PKT: 428633e882a5SSuraj Sumangala len = HCI_MAX_EVENT_SIZE; 428733e882a5SSuraj Sumangala hlen = HCI_EVENT_HDR_SIZE; 428833e882a5SSuraj Sumangala break; 428933e882a5SSuraj Sumangala case HCI_SCODATA_PKT: 429033e882a5SSuraj Sumangala len = HCI_MAX_SCO_SIZE; 429133e882a5SSuraj Sumangala hlen = HCI_SCO_HDR_SIZE; 429233e882a5SSuraj Sumangala break; 429333e882a5SSuraj Sumangala } 429433e882a5SSuraj Sumangala 42951e429f38SGustavo F. Padovan skb = bt_skb_alloc(len, GFP_ATOMIC); 429633e882a5SSuraj Sumangala if (!skb) 429733e882a5SSuraj Sumangala return -ENOMEM; 429833e882a5SSuraj Sumangala 429933e882a5SSuraj Sumangala scb = (void *) skb->cb; 430033e882a5SSuraj Sumangala scb->expect = hlen; 430133e882a5SSuraj Sumangala scb->pkt_type = type; 430233e882a5SSuraj Sumangala 430333e882a5SSuraj Sumangala hdev->reassembly[index] = skb; 430433e882a5SSuraj Sumangala } 430533e882a5SSuraj Sumangala 430633e882a5SSuraj Sumangala while (count) { 430733e882a5SSuraj Sumangala scb = (void *) skb->cb; 430889bb46d0SDan Carpenter len = min_t(uint, scb->expect, count); 430933e882a5SSuraj Sumangala 431033e882a5SSuraj Sumangala memcpy(skb_put(skb, len), data, len); 431133e882a5SSuraj Sumangala 431233e882a5SSuraj Sumangala count -= len; 431333e882a5SSuraj Sumangala data += len; 431433e882a5SSuraj Sumangala scb->expect -= len; 431533e882a5SSuraj Sumangala remain = count; 431633e882a5SSuraj Sumangala 431733e882a5SSuraj Sumangala switch (type) { 431833e882a5SSuraj Sumangala case HCI_EVENT_PKT: 431933e882a5SSuraj Sumangala if (skb->len == HCI_EVENT_HDR_SIZE) { 432033e882a5SSuraj Sumangala struct hci_event_hdr *h = hci_event_hdr(skb); 432133e882a5SSuraj Sumangala scb->expect = h->plen; 432233e882a5SSuraj Sumangala 432333e882a5SSuraj Sumangala if (skb_tailroom(skb) < scb->expect) { 432433e882a5SSuraj Sumangala kfree_skb(skb); 432533e882a5SSuraj Sumangala hdev->reassembly[index] = NULL; 432633e882a5SSuraj Sumangala return -ENOMEM; 432733e882a5SSuraj Sumangala } 432833e882a5SSuraj Sumangala } 432933e882a5SSuraj Sumangala break; 433033e882a5SSuraj Sumangala 433133e882a5SSuraj Sumangala case HCI_ACLDATA_PKT: 433233e882a5SSuraj Sumangala if (skb->len == HCI_ACL_HDR_SIZE) { 433333e882a5SSuraj Sumangala struct hci_acl_hdr *h = hci_acl_hdr(skb); 433433e882a5SSuraj Sumangala scb->expect = __le16_to_cpu(h->dlen); 433533e882a5SSuraj Sumangala 433633e882a5SSuraj Sumangala if (skb_tailroom(skb) < scb->expect) { 433733e882a5SSuraj Sumangala kfree_skb(skb); 433833e882a5SSuraj Sumangala hdev->reassembly[index] = NULL; 433933e882a5SSuraj Sumangala return -ENOMEM; 434033e882a5SSuraj Sumangala } 434133e882a5SSuraj Sumangala } 434233e882a5SSuraj Sumangala break; 434333e882a5SSuraj Sumangala 434433e882a5SSuraj Sumangala case HCI_SCODATA_PKT: 434533e882a5SSuraj Sumangala if (skb->len == HCI_SCO_HDR_SIZE) { 434633e882a5SSuraj Sumangala struct hci_sco_hdr *h = hci_sco_hdr(skb); 434733e882a5SSuraj Sumangala scb->expect = h->dlen; 434833e882a5SSuraj Sumangala 434933e882a5SSuraj Sumangala if (skb_tailroom(skb) < scb->expect) { 435033e882a5SSuraj Sumangala kfree_skb(skb); 435133e882a5SSuraj Sumangala hdev->reassembly[index] = NULL; 435233e882a5SSuraj Sumangala return -ENOMEM; 435333e882a5SSuraj Sumangala } 435433e882a5SSuraj Sumangala } 435533e882a5SSuraj Sumangala break; 435633e882a5SSuraj Sumangala } 435733e882a5SSuraj Sumangala 435833e882a5SSuraj Sumangala if (scb->expect == 0) { 435933e882a5SSuraj Sumangala /* Complete frame */ 436033e882a5SSuraj Sumangala 436133e882a5SSuraj Sumangala bt_cb(skb)->pkt_type = type; 4362e1a26170SMarcel Holtmann hci_recv_frame(hdev, skb); 436333e882a5SSuraj Sumangala 436433e882a5SSuraj Sumangala hdev->reassembly[index] = NULL; 436533e882a5SSuraj Sumangala return remain; 436633e882a5SSuraj Sumangala } 436733e882a5SSuraj Sumangala } 436833e882a5SSuraj Sumangala 436933e882a5SSuraj Sumangala return remain; 437033e882a5SSuraj Sumangala } 437133e882a5SSuraj Sumangala 4372ef222013SMarcel Holtmann int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count) 4373ef222013SMarcel Holtmann { 4374f39a3c06SSuraj Sumangala int rem = 0; 4375f39a3c06SSuraj Sumangala 4376ef222013SMarcel Holtmann if (type < HCI_ACLDATA_PKT || type > HCI_EVENT_PKT) 4377ef222013SMarcel Holtmann return -EILSEQ; 4378ef222013SMarcel Holtmann 4379da5f6c37SGustavo F. Padovan while (count) { 43801e429f38SGustavo F. Padovan rem = hci_reassembly(hdev, type, data, count, type - 1); 4381f39a3c06SSuraj Sumangala if (rem < 0) 4382f39a3c06SSuraj Sumangala return rem; 4383ef222013SMarcel Holtmann 4384f39a3c06SSuraj Sumangala data += (count - rem); 4385f39a3c06SSuraj Sumangala count = rem; 4386f81c6224SJoe Perches } 4387ef222013SMarcel Holtmann 4388f39a3c06SSuraj Sumangala return rem; 4389ef222013SMarcel Holtmann } 4390ef222013SMarcel Holtmann EXPORT_SYMBOL(hci_recv_fragment); 4391ef222013SMarcel Holtmann 439299811510SSuraj Sumangala #define STREAM_REASSEMBLY 0 439399811510SSuraj Sumangala 439499811510SSuraj Sumangala int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count) 439599811510SSuraj Sumangala { 439699811510SSuraj Sumangala int type; 439799811510SSuraj Sumangala int rem = 0; 439899811510SSuraj Sumangala 4399da5f6c37SGustavo F. Padovan while (count) { 440099811510SSuraj Sumangala struct sk_buff *skb = hdev->reassembly[STREAM_REASSEMBLY]; 440199811510SSuraj Sumangala 440299811510SSuraj Sumangala if (!skb) { 440399811510SSuraj Sumangala struct { char type; } *pkt; 440499811510SSuraj Sumangala 440599811510SSuraj Sumangala /* Start of the frame */ 440699811510SSuraj Sumangala pkt = data; 440799811510SSuraj Sumangala type = pkt->type; 440899811510SSuraj Sumangala 440999811510SSuraj Sumangala data++; 441099811510SSuraj Sumangala count--; 441199811510SSuraj Sumangala } else 441299811510SSuraj Sumangala type = bt_cb(skb)->pkt_type; 441399811510SSuraj Sumangala 44141e429f38SGustavo F. Padovan rem = hci_reassembly(hdev, type, data, count, 44151e429f38SGustavo F. Padovan STREAM_REASSEMBLY); 441699811510SSuraj Sumangala if (rem < 0) 441799811510SSuraj Sumangala return rem; 441899811510SSuraj Sumangala 441999811510SSuraj Sumangala data += (count - rem); 442099811510SSuraj Sumangala count = rem; 4421f81c6224SJoe Perches } 442299811510SSuraj Sumangala 442399811510SSuraj Sumangala return rem; 442499811510SSuraj Sumangala } 442599811510SSuraj Sumangala EXPORT_SYMBOL(hci_recv_stream_fragment); 442699811510SSuraj Sumangala 44271da177e4SLinus Torvalds /* ---- Interface to upper protocols ---- */ 44281da177e4SLinus Torvalds 44291da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *cb) 44301da177e4SLinus Torvalds { 44311da177e4SLinus Torvalds BT_DBG("%p name %s", cb, cb->name); 44321da177e4SLinus Torvalds 4433f20d09d5SGustavo F. Padovan write_lock(&hci_cb_list_lock); 44341da177e4SLinus Torvalds list_add(&cb->list, &hci_cb_list); 4435f20d09d5SGustavo F. Padovan write_unlock(&hci_cb_list_lock); 44361da177e4SLinus Torvalds 44371da177e4SLinus Torvalds return 0; 44381da177e4SLinus Torvalds } 44391da177e4SLinus Torvalds EXPORT_SYMBOL(hci_register_cb); 44401da177e4SLinus Torvalds 44411da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *cb) 44421da177e4SLinus Torvalds { 44431da177e4SLinus Torvalds BT_DBG("%p name %s", cb, cb->name); 44441da177e4SLinus Torvalds 4445f20d09d5SGustavo F. Padovan write_lock(&hci_cb_list_lock); 44461da177e4SLinus Torvalds list_del(&cb->list); 4447f20d09d5SGustavo F. Padovan write_unlock(&hci_cb_list_lock); 44481da177e4SLinus Torvalds 44491da177e4SLinus Torvalds return 0; 44501da177e4SLinus Torvalds } 44511da177e4SLinus Torvalds EXPORT_SYMBOL(hci_unregister_cb); 44521da177e4SLinus Torvalds 445351086991SMarcel Holtmann static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 44541da177e4SLinus Torvalds { 4455cdc52faaSMarcel Holtmann int err; 4456cdc52faaSMarcel Holtmann 44570d48d939SMarcel Holtmann BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); 44581da177e4SLinus Torvalds 44591da177e4SLinus Torvalds /* Time stamp */ 4460a61bbcf2SPatrick McHardy __net_timestamp(skb); 44611da177e4SLinus Torvalds 4462cd82e61cSMarcel Holtmann /* Send copy to monitor */ 4463cd82e61cSMarcel Holtmann hci_send_to_monitor(hdev, skb); 4464cd82e61cSMarcel Holtmann 4465cd82e61cSMarcel Holtmann if (atomic_read(&hdev->promisc)) { 4466cd82e61cSMarcel Holtmann /* Send copy to the sockets */ 4467470fe1b5SMarcel Holtmann hci_send_to_sock(hdev, skb); 44681da177e4SLinus Torvalds } 44691da177e4SLinus Torvalds 44701da177e4SLinus Torvalds /* Get rid of skb owner, prior to sending to the driver. */ 44711da177e4SLinus Torvalds skb_orphan(skb); 44721da177e4SLinus Torvalds 4473cdc52faaSMarcel Holtmann err = hdev->send(hdev, skb); 4474cdc52faaSMarcel Holtmann if (err < 0) { 4475cdc52faaSMarcel Holtmann BT_ERR("%s sending frame failed (%d)", hdev->name, err); 4476cdc52faaSMarcel Holtmann kfree_skb(skb); 4477cdc52faaSMarcel Holtmann } 44781da177e4SLinus Torvalds } 44791da177e4SLinus Torvalds 44803119ae95SJohan Hedberg void hci_req_init(struct hci_request *req, struct hci_dev *hdev) 44813119ae95SJohan Hedberg { 44823119ae95SJohan Hedberg skb_queue_head_init(&req->cmd_q); 44833119ae95SJohan Hedberg req->hdev = hdev; 44845d73e034SAndre Guedes req->err = 0; 44853119ae95SJohan Hedberg } 44863119ae95SJohan Hedberg 44873119ae95SJohan Hedberg int hci_req_run(struct hci_request *req, hci_req_complete_t complete) 44883119ae95SJohan Hedberg { 44893119ae95SJohan Hedberg struct hci_dev *hdev = req->hdev; 44903119ae95SJohan Hedberg struct sk_buff *skb; 44913119ae95SJohan Hedberg unsigned long flags; 44923119ae95SJohan Hedberg 44933119ae95SJohan Hedberg BT_DBG("length %u", skb_queue_len(&req->cmd_q)); 44943119ae95SJohan Hedberg 44955d73e034SAndre Guedes /* If an error occured during request building, remove all HCI 44965d73e034SAndre Guedes * commands queued on the HCI request queue. 44975d73e034SAndre Guedes */ 44985d73e034SAndre Guedes if (req->err) { 44995d73e034SAndre Guedes skb_queue_purge(&req->cmd_q); 45005d73e034SAndre Guedes return req->err; 45015d73e034SAndre Guedes } 45025d73e034SAndre Guedes 45033119ae95SJohan Hedberg /* Do not allow empty requests */ 45043119ae95SJohan Hedberg if (skb_queue_empty(&req->cmd_q)) 4505382b0c39SAndre Guedes return -ENODATA; 45063119ae95SJohan Hedberg 45073119ae95SJohan Hedberg skb = skb_peek_tail(&req->cmd_q); 45083119ae95SJohan Hedberg bt_cb(skb)->req.complete = complete; 45093119ae95SJohan Hedberg 45103119ae95SJohan Hedberg spin_lock_irqsave(&hdev->cmd_q.lock, flags); 45113119ae95SJohan Hedberg skb_queue_splice_tail(&req->cmd_q, &hdev->cmd_q); 45123119ae95SJohan Hedberg spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); 45133119ae95SJohan Hedberg 45143119ae95SJohan Hedberg queue_work(hdev->workqueue, &hdev->cmd_work); 45153119ae95SJohan Hedberg 45163119ae95SJohan Hedberg return 0; 45173119ae95SJohan Hedberg } 45183119ae95SJohan Hedberg 4519899de765SMarcel Holtmann bool hci_req_pending(struct hci_dev *hdev) 4520899de765SMarcel Holtmann { 4521899de765SMarcel Holtmann return (hdev->req_status == HCI_REQ_PEND); 4522899de765SMarcel Holtmann } 4523899de765SMarcel Holtmann 45241ca3a9d0SJohan Hedberg static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, 452507dc93ddSJohan Hedberg u32 plen, const void *param) 45261da177e4SLinus Torvalds { 45271da177e4SLinus Torvalds int len = HCI_COMMAND_HDR_SIZE + plen; 45281da177e4SLinus Torvalds struct hci_command_hdr *hdr; 45291da177e4SLinus Torvalds struct sk_buff *skb; 45301da177e4SLinus Torvalds 45311da177e4SLinus Torvalds skb = bt_skb_alloc(len, GFP_ATOMIC); 45321ca3a9d0SJohan Hedberg if (!skb) 45331ca3a9d0SJohan Hedberg return NULL; 45341da177e4SLinus Torvalds 45351da177e4SLinus Torvalds hdr = (struct hci_command_hdr *) skb_put(skb, HCI_COMMAND_HDR_SIZE); 4536a9de9248SMarcel Holtmann hdr->opcode = cpu_to_le16(opcode); 45371da177e4SLinus Torvalds hdr->plen = plen; 45381da177e4SLinus Torvalds 45391da177e4SLinus Torvalds if (plen) 45401da177e4SLinus Torvalds memcpy(skb_put(skb, plen), param, plen); 45411da177e4SLinus Torvalds 45421da177e4SLinus Torvalds BT_DBG("skb len %d", skb->len); 45431da177e4SLinus Torvalds 45440d48d939SMarcel Holtmann bt_cb(skb)->pkt_type = HCI_COMMAND_PKT; 4545c78ae283SMarcel Holtmann 45461ca3a9d0SJohan Hedberg return skb; 45471ca3a9d0SJohan Hedberg } 45481ca3a9d0SJohan Hedberg 45491ca3a9d0SJohan Hedberg /* Send HCI command */ 455007dc93ddSJohan Hedberg int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 455107dc93ddSJohan Hedberg const void *param) 45521ca3a9d0SJohan Hedberg { 45531ca3a9d0SJohan Hedberg struct sk_buff *skb; 45541ca3a9d0SJohan Hedberg 45551ca3a9d0SJohan Hedberg BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen); 45561ca3a9d0SJohan Hedberg 45571ca3a9d0SJohan Hedberg skb = hci_prepare_cmd(hdev, opcode, plen, param); 45581ca3a9d0SJohan Hedberg if (!skb) { 45591ca3a9d0SJohan Hedberg BT_ERR("%s no memory for command", hdev->name); 45601ca3a9d0SJohan Hedberg return -ENOMEM; 45611ca3a9d0SJohan Hedberg } 45621ca3a9d0SJohan Hedberg 456311714b3dSJohan Hedberg /* Stand-alone HCI commands must be flaged as 456411714b3dSJohan Hedberg * single-command requests. 456511714b3dSJohan Hedberg */ 456611714b3dSJohan Hedberg bt_cb(skb)->req.start = true; 456711714b3dSJohan Hedberg 45681da177e4SLinus Torvalds skb_queue_tail(&hdev->cmd_q, skb); 4569c347b765SGustavo F. Padovan queue_work(hdev->workqueue, &hdev->cmd_work); 45701da177e4SLinus Torvalds 45711da177e4SLinus Torvalds return 0; 45721da177e4SLinus Torvalds } 45731da177e4SLinus Torvalds 457471c76a17SJohan Hedberg /* Queue a command to an asynchronous HCI request */ 457507dc93ddSJohan Hedberg void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, 457607dc93ddSJohan Hedberg const void *param, u8 event) 457771c76a17SJohan Hedberg { 457871c76a17SJohan Hedberg struct hci_dev *hdev = req->hdev; 457971c76a17SJohan Hedberg struct sk_buff *skb; 458071c76a17SJohan Hedberg 458171c76a17SJohan Hedberg BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen); 458271c76a17SJohan Hedberg 458334739c1eSAndre Guedes /* If an error occured during request building, there is no point in 458434739c1eSAndre Guedes * queueing the HCI command. We can simply return. 458534739c1eSAndre Guedes */ 458634739c1eSAndre Guedes if (req->err) 458734739c1eSAndre Guedes return; 458834739c1eSAndre Guedes 458971c76a17SJohan Hedberg skb = hci_prepare_cmd(hdev, opcode, plen, param); 459071c76a17SJohan Hedberg if (!skb) { 45915d73e034SAndre Guedes BT_ERR("%s no memory for command (opcode 0x%4.4x)", 45925d73e034SAndre Guedes hdev->name, opcode); 45935d73e034SAndre Guedes req->err = -ENOMEM; 4594e348fe6bSAndre Guedes return; 459571c76a17SJohan Hedberg } 459671c76a17SJohan Hedberg 459771c76a17SJohan Hedberg if (skb_queue_empty(&req->cmd_q)) 459871c76a17SJohan Hedberg bt_cb(skb)->req.start = true; 459971c76a17SJohan Hedberg 460002350a72SJohan Hedberg bt_cb(skb)->req.event = event; 460102350a72SJohan Hedberg 460271c76a17SJohan Hedberg skb_queue_tail(&req->cmd_q, skb); 460371c76a17SJohan Hedberg } 460471c76a17SJohan Hedberg 460507dc93ddSJohan Hedberg void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, 460607dc93ddSJohan Hedberg const void *param) 460702350a72SJohan Hedberg { 460802350a72SJohan Hedberg hci_req_add_ev(req, opcode, plen, param, 0); 460902350a72SJohan Hedberg } 461002350a72SJohan Hedberg 46111da177e4SLinus Torvalds /* Get data from the previously sent command */ 4612a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode) 46131da177e4SLinus Torvalds { 46141da177e4SLinus Torvalds struct hci_command_hdr *hdr; 46151da177e4SLinus Torvalds 46161da177e4SLinus Torvalds if (!hdev->sent_cmd) 46171da177e4SLinus Torvalds return NULL; 46181da177e4SLinus Torvalds 46191da177e4SLinus Torvalds hdr = (void *) hdev->sent_cmd->data; 46201da177e4SLinus Torvalds 4621a9de9248SMarcel Holtmann if (hdr->opcode != cpu_to_le16(opcode)) 46221da177e4SLinus Torvalds return NULL; 46231da177e4SLinus Torvalds 4624f0e09510SAndrei Emeltchenko BT_DBG("%s opcode 0x%4.4x", hdev->name, opcode); 46251da177e4SLinus Torvalds 46261da177e4SLinus Torvalds return hdev->sent_cmd->data + HCI_COMMAND_HDR_SIZE; 46271da177e4SLinus Torvalds } 46281da177e4SLinus Torvalds 46291da177e4SLinus Torvalds /* Send ACL data */ 46301da177e4SLinus Torvalds static void hci_add_acl_hdr(struct sk_buff *skb, __u16 handle, __u16 flags) 46311da177e4SLinus Torvalds { 46321da177e4SLinus Torvalds struct hci_acl_hdr *hdr; 46331da177e4SLinus Torvalds int len = skb->len; 46341da177e4SLinus Torvalds 4635badff6d0SArnaldo Carvalho de Melo skb_push(skb, HCI_ACL_HDR_SIZE); 4636badff6d0SArnaldo Carvalho de Melo skb_reset_transport_header(skb); 46379c70220bSArnaldo Carvalho de Melo hdr = (struct hci_acl_hdr *)skb_transport_header(skb); 4638aca3192cSYOSHIFUJI Hideaki hdr->handle = cpu_to_le16(hci_handle_pack(handle, flags)); 4639aca3192cSYOSHIFUJI Hideaki hdr->dlen = cpu_to_le16(len); 46401da177e4SLinus Torvalds } 46411da177e4SLinus Torvalds 4642ee22be7eSAndrei Emeltchenko static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue, 464373d80debSLuiz Augusto von Dentz struct sk_buff *skb, __u16 flags) 46441da177e4SLinus Torvalds { 4645ee22be7eSAndrei Emeltchenko struct hci_conn *conn = chan->conn; 46461da177e4SLinus Torvalds struct hci_dev *hdev = conn->hdev; 46471da177e4SLinus Torvalds struct sk_buff *list; 46481da177e4SLinus Torvalds 4649087bfd99SGustavo Padovan skb->len = skb_headlen(skb); 4650087bfd99SGustavo Padovan skb->data_len = 0; 4651087bfd99SGustavo Padovan 4652087bfd99SGustavo Padovan bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; 4653204a6e54SAndrei Emeltchenko 4654204a6e54SAndrei Emeltchenko switch (hdev->dev_type) { 4655204a6e54SAndrei Emeltchenko case HCI_BREDR: 4656087bfd99SGustavo Padovan hci_add_acl_hdr(skb, conn->handle, flags); 4657204a6e54SAndrei Emeltchenko break; 4658204a6e54SAndrei Emeltchenko case HCI_AMP: 4659204a6e54SAndrei Emeltchenko hci_add_acl_hdr(skb, chan->handle, flags); 4660204a6e54SAndrei Emeltchenko break; 4661204a6e54SAndrei Emeltchenko default: 4662204a6e54SAndrei Emeltchenko BT_ERR("%s unknown dev_type %d", hdev->name, hdev->dev_type); 4663204a6e54SAndrei Emeltchenko return; 4664204a6e54SAndrei Emeltchenko } 4665087bfd99SGustavo Padovan 466670f23020SAndrei Emeltchenko list = skb_shinfo(skb)->frag_list; 466770f23020SAndrei Emeltchenko if (!list) { 46681da177e4SLinus Torvalds /* Non fragmented */ 46691da177e4SLinus Torvalds BT_DBG("%s nonfrag skb %p len %d", hdev->name, skb, skb->len); 46701da177e4SLinus Torvalds 467173d80debSLuiz Augusto von Dentz skb_queue_tail(queue, skb); 46721da177e4SLinus Torvalds } else { 46731da177e4SLinus Torvalds /* Fragmented */ 46741da177e4SLinus Torvalds BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len); 46751da177e4SLinus Torvalds 46761da177e4SLinus Torvalds skb_shinfo(skb)->frag_list = NULL; 46771da177e4SLinus Torvalds 46781da177e4SLinus Torvalds /* Queue all fragments atomically */ 4679af3e6359SGustavo F. Padovan spin_lock(&queue->lock); 46801da177e4SLinus Torvalds 468173d80debSLuiz Augusto von Dentz __skb_queue_tail(queue, skb); 4682e702112fSAndrei Emeltchenko 4683e702112fSAndrei Emeltchenko flags &= ~ACL_START; 4684e702112fSAndrei Emeltchenko flags |= ACL_CONT; 46851da177e4SLinus Torvalds do { 46861da177e4SLinus Torvalds skb = list; list = list->next; 46871da177e4SLinus Torvalds 46880d48d939SMarcel Holtmann bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; 4689e702112fSAndrei Emeltchenko hci_add_acl_hdr(skb, conn->handle, flags); 46901da177e4SLinus Torvalds 46911da177e4SLinus Torvalds BT_DBG("%s frag %p len %d", hdev->name, skb, skb->len); 46921da177e4SLinus Torvalds 469373d80debSLuiz Augusto von Dentz __skb_queue_tail(queue, skb); 46941da177e4SLinus Torvalds } while (list); 46951da177e4SLinus Torvalds 4696af3e6359SGustavo F. Padovan spin_unlock(&queue->lock); 46971da177e4SLinus Torvalds } 469873d80debSLuiz Augusto von Dentz } 469973d80debSLuiz Augusto von Dentz 470073d80debSLuiz Augusto von Dentz void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags) 470173d80debSLuiz Augusto von Dentz { 4702ee22be7eSAndrei Emeltchenko struct hci_dev *hdev = chan->conn->hdev; 470373d80debSLuiz Augusto von Dentz 4704f0e09510SAndrei Emeltchenko BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags); 470573d80debSLuiz Augusto von Dentz 4706ee22be7eSAndrei Emeltchenko hci_queue_acl(chan, &chan->data_q, skb, flags); 47071da177e4SLinus Torvalds 47083eff45eaSGustavo F. Padovan queue_work(hdev->workqueue, &hdev->tx_work); 47091da177e4SLinus Torvalds } 47101da177e4SLinus Torvalds 47111da177e4SLinus Torvalds /* Send SCO data */ 47120d861d8bSGustavo F. Padovan void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb) 47131da177e4SLinus Torvalds { 47141da177e4SLinus Torvalds struct hci_dev *hdev = conn->hdev; 47151da177e4SLinus Torvalds struct hci_sco_hdr hdr; 47161da177e4SLinus Torvalds 47171da177e4SLinus Torvalds BT_DBG("%s len %d", hdev->name, skb->len); 47181da177e4SLinus Torvalds 4719aca3192cSYOSHIFUJI Hideaki hdr.handle = cpu_to_le16(conn->handle); 47201da177e4SLinus Torvalds hdr.dlen = skb->len; 47211da177e4SLinus Torvalds 4722badff6d0SArnaldo Carvalho de Melo skb_push(skb, HCI_SCO_HDR_SIZE); 4723badff6d0SArnaldo Carvalho de Melo skb_reset_transport_header(skb); 47249c70220bSArnaldo Carvalho de Melo memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE); 47251da177e4SLinus Torvalds 47260d48d939SMarcel Holtmann bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; 4727c78ae283SMarcel Holtmann 47281da177e4SLinus Torvalds skb_queue_tail(&conn->data_q, skb); 47293eff45eaSGustavo F. Padovan queue_work(hdev->workqueue, &hdev->tx_work); 47301da177e4SLinus Torvalds } 47311da177e4SLinus Torvalds 47321da177e4SLinus Torvalds /* ---- HCI TX task (outgoing data) ---- */ 47331da177e4SLinus Torvalds 47341da177e4SLinus Torvalds /* HCI Connection scheduler */ 47356039aa73SGustavo Padovan static struct hci_conn *hci_low_sent(struct hci_dev *hdev, __u8 type, 4736a8c5fb1aSGustavo Padovan int *quote) 47371da177e4SLinus Torvalds { 47381da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 47398035ded4SLuiz Augusto von Dentz struct hci_conn *conn = NULL, *c; 4740abc5de8fSMikel Astiz unsigned int num = 0, min = ~0; 47411da177e4SLinus Torvalds 47421da177e4SLinus Torvalds /* We don't have to lock device here. Connections are always 47431da177e4SLinus Torvalds * added and removed with TX task disabled. */ 4744bf4c6325SGustavo F. Padovan 4745bf4c6325SGustavo F. Padovan rcu_read_lock(); 4746bf4c6325SGustavo F. Padovan 4747bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 4748769be974SMarcel Holtmann if (c->type != type || skb_queue_empty(&c->data_q)) 47491da177e4SLinus Torvalds continue; 4750769be974SMarcel Holtmann 4751769be974SMarcel Holtmann if (c->state != BT_CONNECTED && c->state != BT_CONFIG) 4752769be974SMarcel Holtmann continue; 4753769be974SMarcel Holtmann 47541da177e4SLinus Torvalds num++; 47551da177e4SLinus Torvalds 47561da177e4SLinus Torvalds if (c->sent < min) { 47571da177e4SLinus Torvalds min = c->sent; 47581da177e4SLinus Torvalds conn = c; 47591da177e4SLinus Torvalds } 476052087a79SLuiz Augusto von Dentz 476152087a79SLuiz Augusto von Dentz if (hci_conn_num(hdev, type) == num) 476252087a79SLuiz Augusto von Dentz break; 47631da177e4SLinus Torvalds } 47641da177e4SLinus Torvalds 4765bf4c6325SGustavo F. Padovan rcu_read_unlock(); 4766bf4c6325SGustavo F. Padovan 47671da177e4SLinus Torvalds if (conn) { 47686ed58ec5SVille Tervo int cnt, q; 47696ed58ec5SVille Tervo 47706ed58ec5SVille Tervo switch (conn->type) { 47716ed58ec5SVille Tervo case ACL_LINK: 47726ed58ec5SVille Tervo cnt = hdev->acl_cnt; 47736ed58ec5SVille Tervo break; 47746ed58ec5SVille Tervo case SCO_LINK: 47756ed58ec5SVille Tervo case ESCO_LINK: 47766ed58ec5SVille Tervo cnt = hdev->sco_cnt; 47776ed58ec5SVille Tervo break; 47786ed58ec5SVille Tervo case LE_LINK: 47796ed58ec5SVille Tervo cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt; 47806ed58ec5SVille Tervo break; 47816ed58ec5SVille Tervo default: 47826ed58ec5SVille Tervo cnt = 0; 47836ed58ec5SVille Tervo BT_ERR("Unknown link type"); 47846ed58ec5SVille Tervo } 47856ed58ec5SVille Tervo 47866ed58ec5SVille Tervo q = cnt / num; 47871da177e4SLinus Torvalds *quote = q ? q : 1; 47881da177e4SLinus Torvalds } else 47891da177e4SLinus Torvalds *quote = 0; 47901da177e4SLinus Torvalds 47911da177e4SLinus Torvalds BT_DBG("conn %p quote %d", conn, *quote); 47921da177e4SLinus Torvalds return conn; 47931da177e4SLinus Torvalds } 47941da177e4SLinus Torvalds 47956039aa73SGustavo Padovan static void hci_link_tx_to(struct hci_dev *hdev, __u8 type) 47961da177e4SLinus Torvalds { 47971da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 47981da177e4SLinus Torvalds struct hci_conn *c; 47991da177e4SLinus Torvalds 4800bae1f5d9SVille Tervo BT_ERR("%s link tx timeout", hdev->name); 48011da177e4SLinus Torvalds 4802bf4c6325SGustavo F. Padovan rcu_read_lock(); 4803bf4c6325SGustavo F. Padovan 48041da177e4SLinus Torvalds /* Kill stalled connections */ 4805bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 4806bae1f5d9SVille Tervo if (c->type == type && c->sent) { 48076ed93dc6SAndrei Emeltchenko BT_ERR("%s killing stalled connection %pMR", 48086ed93dc6SAndrei Emeltchenko hdev->name, &c->dst); 4809bed71748SAndre Guedes hci_disconnect(c, HCI_ERROR_REMOTE_USER_TERM); 48101da177e4SLinus Torvalds } 48111da177e4SLinus Torvalds } 4812bf4c6325SGustavo F. Padovan 4813bf4c6325SGustavo F. Padovan rcu_read_unlock(); 48141da177e4SLinus Torvalds } 48151da177e4SLinus Torvalds 48166039aa73SGustavo Padovan static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type, 481773d80debSLuiz Augusto von Dentz int *quote) 481873d80debSLuiz Augusto von Dentz { 481973d80debSLuiz Augusto von Dentz struct hci_conn_hash *h = &hdev->conn_hash; 482073d80debSLuiz Augusto von Dentz struct hci_chan *chan = NULL; 4821abc5de8fSMikel Astiz unsigned int num = 0, min = ~0, cur_prio = 0; 482273d80debSLuiz Augusto von Dentz struct hci_conn *conn; 482373d80debSLuiz Augusto von Dentz int cnt, q, conn_num = 0; 482473d80debSLuiz Augusto von Dentz 482573d80debSLuiz Augusto von Dentz BT_DBG("%s", hdev->name); 482673d80debSLuiz Augusto von Dentz 4827bf4c6325SGustavo F. Padovan rcu_read_lock(); 4828bf4c6325SGustavo F. Padovan 4829bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(conn, &h->list, list) { 483073d80debSLuiz Augusto von Dentz struct hci_chan *tmp; 483173d80debSLuiz Augusto von Dentz 483273d80debSLuiz Augusto von Dentz if (conn->type != type) 483373d80debSLuiz Augusto von Dentz continue; 483473d80debSLuiz Augusto von Dentz 483573d80debSLuiz Augusto von Dentz if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) 483673d80debSLuiz Augusto von Dentz continue; 483773d80debSLuiz Augusto von Dentz 483873d80debSLuiz Augusto von Dentz conn_num++; 483973d80debSLuiz Augusto von Dentz 48408192edefSGustavo F. Padovan list_for_each_entry_rcu(tmp, &conn->chan_list, list) { 484173d80debSLuiz Augusto von Dentz struct sk_buff *skb; 484273d80debSLuiz Augusto von Dentz 484373d80debSLuiz Augusto von Dentz if (skb_queue_empty(&tmp->data_q)) 484473d80debSLuiz Augusto von Dentz continue; 484573d80debSLuiz Augusto von Dentz 484673d80debSLuiz Augusto von Dentz skb = skb_peek(&tmp->data_q); 484773d80debSLuiz Augusto von Dentz if (skb->priority < cur_prio) 484873d80debSLuiz Augusto von Dentz continue; 484973d80debSLuiz Augusto von Dentz 485073d80debSLuiz Augusto von Dentz if (skb->priority > cur_prio) { 485173d80debSLuiz Augusto von Dentz num = 0; 485273d80debSLuiz Augusto von Dentz min = ~0; 485373d80debSLuiz Augusto von Dentz cur_prio = skb->priority; 485473d80debSLuiz Augusto von Dentz } 485573d80debSLuiz Augusto von Dentz 485673d80debSLuiz Augusto von Dentz num++; 485773d80debSLuiz Augusto von Dentz 485873d80debSLuiz Augusto von Dentz if (conn->sent < min) { 485973d80debSLuiz Augusto von Dentz min = conn->sent; 486073d80debSLuiz Augusto von Dentz chan = tmp; 486173d80debSLuiz Augusto von Dentz } 486273d80debSLuiz Augusto von Dentz } 486373d80debSLuiz Augusto von Dentz 486473d80debSLuiz Augusto von Dentz if (hci_conn_num(hdev, type) == conn_num) 486573d80debSLuiz Augusto von Dentz break; 486673d80debSLuiz Augusto von Dentz } 486773d80debSLuiz Augusto von Dentz 4868bf4c6325SGustavo F. Padovan rcu_read_unlock(); 4869bf4c6325SGustavo F. Padovan 487073d80debSLuiz Augusto von Dentz if (!chan) 487173d80debSLuiz Augusto von Dentz return NULL; 487273d80debSLuiz Augusto von Dentz 487373d80debSLuiz Augusto von Dentz switch (chan->conn->type) { 487473d80debSLuiz Augusto von Dentz case ACL_LINK: 487573d80debSLuiz Augusto von Dentz cnt = hdev->acl_cnt; 487673d80debSLuiz Augusto von Dentz break; 4877bd1eb66bSAndrei Emeltchenko case AMP_LINK: 4878bd1eb66bSAndrei Emeltchenko cnt = hdev->block_cnt; 4879bd1eb66bSAndrei Emeltchenko break; 488073d80debSLuiz Augusto von Dentz case SCO_LINK: 488173d80debSLuiz Augusto von Dentz case ESCO_LINK: 488273d80debSLuiz Augusto von Dentz cnt = hdev->sco_cnt; 488373d80debSLuiz Augusto von Dentz break; 488473d80debSLuiz Augusto von Dentz case LE_LINK: 488573d80debSLuiz Augusto von Dentz cnt = hdev->le_mtu ? hdev->le_cnt : hdev->acl_cnt; 488673d80debSLuiz Augusto von Dentz break; 488773d80debSLuiz Augusto von Dentz default: 488873d80debSLuiz Augusto von Dentz cnt = 0; 488973d80debSLuiz Augusto von Dentz BT_ERR("Unknown link type"); 489073d80debSLuiz Augusto von Dentz } 489173d80debSLuiz Augusto von Dentz 489273d80debSLuiz Augusto von Dentz q = cnt / num; 489373d80debSLuiz Augusto von Dentz *quote = q ? q : 1; 489473d80debSLuiz Augusto von Dentz BT_DBG("chan %p quote %d", chan, *quote); 489573d80debSLuiz Augusto von Dentz return chan; 489673d80debSLuiz Augusto von Dentz } 489773d80debSLuiz Augusto von Dentz 489802b20f0bSLuiz Augusto von Dentz static void hci_prio_recalculate(struct hci_dev *hdev, __u8 type) 489902b20f0bSLuiz Augusto von Dentz { 490002b20f0bSLuiz Augusto von Dentz struct hci_conn_hash *h = &hdev->conn_hash; 490102b20f0bSLuiz Augusto von Dentz struct hci_conn *conn; 490202b20f0bSLuiz Augusto von Dentz int num = 0; 490302b20f0bSLuiz Augusto von Dentz 490402b20f0bSLuiz Augusto von Dentz BT_DBG("%s", hdev->name); 490502b20f0bSLuiz Augusto von Dentz 4906bf4c6325SGustavo F. Padovan rcu_read_lock(); 4907bf4c6325SGustavo F. Padovan 4908bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(conn, &h->list, list) { 490902b20f0bSLuiz Augusto von Dentz struct hci_chan *chan; 491002b20f0bSLuiz Augusto von Dentz 491102b20f0bSLuiz Augusto von Dentz if (conn->type != type) 491202b20f0bSLuiz Augusto von Dentz continue; 491302b20f0bSLuiz Augusto von Dentz 491402b20f0bSLuiz Augusto von Dentz if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) 491502b20f0bSLuiz Augusto von Dentz continue; 491602b20f0bSLuiz Augusto von Dentz 491702b20f0bSLuiz Augusto von Dentz num++; 491802b20f0bSLuiz Augusto von Dentz 49198192edefSGustavo F. Padovan list_for_each_entry_rcu(chan, &conn->chan_list, list) { 492002b20f0bSLuiz Augusto von Dentz struct sk_buff *skb; 492102b20f0bSLuiz Augusto von Dentz 492202b20f0bSLuiz Augusto von Dentz if (chan->sent) { 492302b20f0bSLuiz Augusto von Dentz chan->sent = 0; 492402b20f0bSLuiz Augusto von Dentz continue; 492502b20f0bSLuiz Augusto von Dentz } 492602b20f0bSLuiz Augusto von Dentz 492702b20f0bSLuiz Augusto von Dentz if (skb_queue_empty(&chan->data_q)) 492802b20f0bSLuiz Augusto von Dentz continue; 492902b20f0bSLuiz Augusto von Dentz 493002b20f0bSLuiz Augusto von Dentz skb = skb_peek(&chan->data_q); 493102b20f0bSLuiz Augusto von Dentz if (skb->priority >= HCI_PRIO_MAX - 1) 493202b20f0bSLuiz Augusto von Dentz continue; 493302b20f0bSLuiz Augusto von Dentz 493402b20f0bSLuiz Augusto von Dentz skb->priority = HCI_PRIO_MAX - 1; 493502b20f0bSLuiz Augusto von Dentz 493602b20f0bSLuiz Augusto von Dentz BT_DBG("chan %p skb %p promoted to %d", chan, skb, 493702b20f0bSLuiz Augusto von Dentz skb->priority); 493802b20f0bSLuiz Augusto von Dentz } 493902b20f0bSLuiz Augusto von Dentz 494002b20f0bSLuiz Augusto von Dentz if (hci_conn_num(hdev, type) == num) 494102b20f0bSLuiz Augusto von Dentz break; 494202b20f0bSLuiz Augusto von Dentz } 4943bf4c6325SGustavo F. Padovan 4944bf4c6325SGustavo F. Padovan rcu_read_unlock(); 4945bf4c6325SGustavo F. Padovan 494602b20f0bSLuiz Augusto von Dentz } 494702b20f0bSLuiz Augusto von Dentz 4948b71d385aSAndrei Emeltchenko static inline int __get_blocks(struct hci_dev *hdev, struct sk_buff *skb) 4949b71d385aSAndrei Emeltchenko { 4950b71d385aSAndrei Emeltchenko /* Calculate count of blocks used by this packet */ 4951b71d385aSAndrei Emeltchenko return DIV_ROUND_UP(skb->len - HCI_ACL_HDR_SIZE, hdev->block_len); 4952b71d385aSAndrei Emeltchenko } 4953b71d385aSAndrei Emeltchenko 49546039aa73SGustavo Padovan static void __check_timeout(struct hci_dev *hdev, unsigned int cnt) 49551da177e4SLinus Torvalds { 49564a964404SMarcel Holtmann if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { 49571da177e4SLinus Torvalds /* ACL tx timeout must be longer than maximum 49581da177e4SLinus Torvalds * link supervision timeout (40.9 seconds) */ 495963d2bc1bSAndrei Emeltchenko if (!cnt && time_after(jiffies, hdev->acl_last_tx + 49605f246e89SAndrei Emeltchenko HCI_ACL_TX_TIMEOUT)) 4961bae1f5d9SVille Tervo hci_link_tx_to(hdev, ACL_LINK); 49621da177e4SLinus Torvalds } 496363d2bc1bSAndrei Emeltchenko } 49641da177e4SLinus Torvalds 49656039aa73SGustavo Padovan static void hci_sched_acl_pkt(struct hci_dev *hdev) 496663d2bc1bSAndrei Emeltchenko { 496763d2bc1bSAndrei Emeltchenko unsigned int cnt = hdev->acl_cnt; 496863d2bc1bSAndrei Emeltchenko struct hci_chan *chan; 496963d2bc1bSAndrei Emeltchenko struct sk_buff *skb; 497063d2bc1bSAndrei Emeltchenko int quote; 497163d2bc1bSAndrei Emeltchenko 497263d2bc1bSAndrei Emeltchenko __check_timeout(hdev, cnt); 497304837f64SMarcel Holtmann 497473d80debSLuiz Augusto von Dentz while (hdev->acl_cnt && 497573d80debSLuiz Augusto von Dentz (chan = hci_chan_sent(hdev, ACL_LINK, "e))) { 4976ec1cce24SLuiz Augusto von Dentz u32 priority = (skb_peek(&chan->data_q))->priority; 4977ec1cce24SLuiz Augusto von Dentz while (quote-- && (skb = skb_peek(&chan->data_q))) { 497873d80debSLuiz Augusto von Dentz BT_DBG("chan %p skb %p len %d priority %u", chan, skb, 497973d80debSLuiz Augusto von Dentz skb->len, skb->priority); 498073d80debSLuiz Augusto von Dentz 4981ec1cce24SLuiz Augusto von Dentz /* Stop if priority has changed */ 4982ec1cce24SLuiz Augusto von Dentz if (skb->priority < priority) 4983ec1cce24SLuiz Augusto von Dentz break; 4984ec1cce24SLuiz Augusto von Dentz 4985ec1cce24SLuiz Augusto von Dentz skb = skb_dequeue(&chan->data_q); 4986ec1cce24SLuiz Augusto von Dentz 498773d80debSLuiz Augusto von Dentz hci_conn_enter_active_mode(chan->conn, 498873d80debSLuiz Augusto von Dentz bt_cb(skb)->force_active); 498904837f64SMarcel Holtmann 499057d17d70SMarcel Holtmann hci_send_frame(hdev, skb); 49911da177e4SLinus Torvalds hdev->acl_last_tx = jiffies; 49921da177e4SLinus Torvalds 49931da177e4SLinus Torvalds hdev->acl_cnt--; 499473d80debSLuiz Augusto von Dentz chan->sent++; 499573d80debSLuiz Augusto von Dentz chan->conn->sent++; 49961da177e4SLinus Torvalds } 49971da177e4SLinus Torvalds } 499802b20f0bSLuiz Augusto von Dentz 499902b20f0bSLuiz Augusto von Dentz if (cnt != hdev->acl_cnt) 500002b20f0bSLuiz Augusto von Dentz hci_prio_recalculate(hdev, ACL_LINK); 50011da177e4SLinus Torvalds } 50021da177e4SLinus Torvalds 50036039aa73SGustavo Padovan static void hci_sched_acl_blk(struct hci_dev *hdev) 5004b71d385aSAndrei Emeltchenko { 500563d2bc1bSAndrei Emeltchenko unsigned int cnt = hdev->block_cnt; 5006b71d385aSAndrei Emeltchenko struct hci_chan *chan; 5007b71d385aSAndrei Emeltchenko struct sk_buff *skb; 5008b71d385aSAndrei Emeltchenko int quote; 5009bd1eb66bSAndrei Emeltchenko u8 type; 5010b71d385aSAndrei Emeltchenko 501163d2bc1bSAndrei Emeltchenko __check_timeout(hdev, cnt); 5012b71d385aSAndrei Emeltchenko 5013bd1eb66bSAndrei Emeltchenko BT_DBG("%s", hdev->name); 5014bd1eb66bSAndrei Emeltchenko 5015bd1eb66bSAndrei Emeltchenko if (hdev->dev_type == HCI_AMP) 5016bd1eb66bSAndrei Emeltchenko type = AMP_LINK; 5017bd1eb66bSAndrei Emeltchenko else 5018bd1eb66bSAndrei Emeltchenko type = ACL_LINK; 5019bd1eb66bSAndrei Emeltchenko 5020b71d385aSAndrei Emeltchenko while (hdev->block_cnt > 0 && 5021bd1eb66bSAndrei Emeltchenko (chan = hci_chan_sent(hdev, type, "e))) { 5022b71d385aSAndrei Emeltchenko u32 priority = (skb_peek(&chan->data_q))->priority; 5023b71d385aSAndrei Emeltchenko while (quote > 0 && (skb = skb_peek(&chan->data_q))) { 5024b71d385aSAndrei Emeltchenko int blocks; 5025b71d385aSAndrei Emeltchenko 5026b71d385aSAndrei Emeltchenko BT_DBG("chan %p skb %p len %d priority %u", chan, skb, 5027b71d385aSAndrei Emeltchenko skb->len, skb->priority); 5028b71d385aSAndrei Emeltchenko 5029b71d385aSAndrei Emeltchenko /* Stop if priority has changed */ 5030b71d385aSAndrei Emeltchenko if (skb->priority < priority) 5031b71d385aSAndrei Emeltchenko break; 5032b71d385aSAndrei Emeltchenko 5033b71d385aSAndrei Emeltchenko skb = skb_dequeue(&chan->data_q); 5034b71d385aSAndrei Emeltchenko 5035b71d385aSAndrei Emeltchenko blocks = __get_blocks(hdev, skb); 5036b71d385aSAndrei Emeltchenko if (blocks > hdev->block_cnt) 5037b71d385aSAndrei Emeltchenko return; 5038b71d385aSAndrei Emeltchenko 5039b71d385aSAndrei Emeltchenko hci_conn_enter_active_mode(chan->conn, 5040b71d385aSAndrei Emeltchenko bt_cb(skb)->force_active); 5041b71d385aSAndrei Emeltchenko 504257d17d70SMarcel Holtmann hci_send_frame(hdev, skb); 5043b71d385aSAndrei Emeltchenko hdev->acl_last_tx = jiffies; 5044b71d385aSAndrei Emeltchenko 5045b71d385aSAndrei Emeltchenko hdev->block_cnt -= blocks; 5046b71d385aSAndrei Emeltchenko quote -= blocks; 5047b71d385aSAndrei Emeltchenko 5048b71d385aSAndrei Emeltchenko chan->sent += blocks; 5049b71d385aSAndrei Emeltchenko chan->conn->sent += blocks; 5050b71d385aSAndrei Emeltchenko } 5051b71d385aSAndrei Emeltchenko } 5052b71d385aSAndrei Emeltchenko 5053b71d385aSAndrei Emeltchenko if (cnt != hdev->block_cnt) 5054bd1eb66bSAndrei Emeltchenko hci_prio_recalculate(hdev, type); 5055b71d385aSAndrei Emeltchenko } 5056b71d385aSAndrei Emeltchenko 50576039aa73SGustavo Padovan static void hci_sched_acl(struct hci_dev *hdev) 5058b71d385aSAndrei Emeltchenko { 5059b71d385aSAndrei Emeltchenko BT_DBG("%s", hdev->name); 5060b71d385aSAndrei Emeltchenko 5061bd1eb66bSAndrei Emeltchenko /* No ACL link over BR/EDR controller */ 5062bd1eb66bSAndrei Emeltchenko if (!hci_conn_num(hdev, ACL_LINK) && hdev->dev_type == HCI_BREDR) 5063bd1eb66bSAndrei Emeltchenko return; 5064bd1eb66bSAndrei Emeltchenko 5065bd1eb66bSAndrei Emeltchenko /* No AMP link over AMP controller */ 5066bd1eb66bSAndrei Emeltchenko if (!hci_conn_num(hdev, AMP_LINK) && hdev->dev_type == HCI_AMP) 5067b71d385aSAndrei Emeltchenko return; 5068b71d385aSAndrei Emeltchenko 5069b71d385aSAndrei Emeltchenko switch (hdev->flow_ctl_mode) { 5070b71d385aSAndrei Emeltchenko case HCI_FLOW_CTL_MODE_PACKET_BASED: 5071b71d385aSAndrei Emeltchenko hci_sched_acl_pkt(hdev); 5072b71d385aSAndrei Emeltchenko break; 5073b71d385aSAndrei Emeltchenko 5074b71d385aSAndrei Emeltchenko case HCI_FLOW_CTL_MODE_BLOCK_BASED: 5075b71d385aSAndrei Emeltchenko hci_sched_acl_blk(hdev); 5076b71d385aSAndrei Emeltchenko break; 5077b71d385aSAndrei Emeltchenko } 5078b71d385aSAndrei Emeltchenko } 5079b71d385aSAndrei Emeltchenko 50801da177e4SLinus Torvalds /* Schedule SCO */ 50816039aa73SGustavo Padovan static void hci_sched_sco(struct hci_dev *hdev) 50821da177e4SLinus Torvalds { 50831da177e4SLinus Torvalds struct hci_conn *conn; 50841da177e4SLinus Torvalds struct sk_buff *skb; 50851da177e4SLinus Torvalds int quote; 50861da177e4SLinus Torvalds 50871da177e4SLinus Torvalds BT_DBG("%s", hdev->name); 50881da177e4SLinus Torvalds 508952087a79SLuiz Augusto von Dentz if (!hci_conn_num(hdev, SCO_LINK)) 509052087a79SLuiz Augusto von Dentz return; 509152087a79SLuiz Augusto von Dentz 50921da177e4SLinus Torvalds while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, "e))) { 50931da177e4SLinus Torvalds while (quote-- && (skb = skb_dequeue(&conn->data_q))) { 50941da177e4SLinus Torvalds BT_DBG("skb %p len %d", skb, skb->len); 509557d17d70SMarcel Holtmann hci_send_frame(hdev, skb); 50961da177e4SLinus Torvalds 50971da177e4SLinus Torvalds conn->sent++; 50981da177e4SLinus Torvalds if (conn->sent == ~0) 50991da177e4SLinus Torvalds conn->sent = 0; 51001da177e4SLinus Torvalds } 51011da177e4SLinus Torvalds } 51021da177e4SLinus Torvalds } 51031da177e4SLinus Torvalds 51046039aa73SGustavo Padovan static void hci_sched_esco(struct hci_dev *hdev) 5105b6a0dc82SMarcel Holtmann { 5106b6a0dc82SMarcel Holtmann struct hci_conn *conn; 5107b6a0dc82SMarcel Holtmann struct sk_buff *skb; 5108b6a0dc82SMarcel Holtmann int quote; 5109b6a0dc82SMarcel Holtmann 5110b6a0dc82SMarcel Holtmann BT_DBG("%s", hdev->name); 5111b6a0dc82SMarcel Holtmann 511252087a79SLuiz Augusto von Dentz if (!hci_conn_num(hdev, ESCO_LINK)) 511352087a79SLuiz Augusto von Dentz return; 511452087a79SLuiz Augusto von Dentz 51158fc9ced3SGustavo Padovan while (hdev->sco_cnt && (conn = hci_low_sent(hdev, ESCO_LINK, 51168fc9ced3SGustavo Padovan "e))) { 5117b6a0dc82SMarcel Holtmann while (quote-- && (skb = skb_dequeue(&conn->data_q))) { 5118b6a0dc82SMarcel Holtmann BT_DBG("skb %p len %d", skb, skb->len); 511957d17d70SMarcel Holtmann hci_send_frame(hdev, skb); 5120b6a0dc82SMarcel Holtmann 5121b6a0dc82SMarcel Holtmann conn->sent++; 5122b6a0dc82SMarcel Holtmann if (conn->sent == ~0) 5123b6a0dc82SMarcel Holtmann conn->sent = 0; 5124b6a0dc82SMarcel Holtmann } 5125b6a0dc82SMarcel Holtmann } 5126b6a0dc82SMarcel Holtmann } 5127b6a0dc82SMarcel Holtmann 51286039aa73SGustavo Padovan static void hci_sched_le(struct hci_dev *hdev) 51296ed58ec5SVille Tervo { 513073d80debSLuiz Augusto von Dentz struct hci_chan *chan; 51316ed58ec5SVille Tervo struct sk_buff *skb; 513202b20f0bSLuiz Augusto von Dentz int quote, cnt, tmp; 51336ed58ec5SVille Tervo 51346ed58ec5SVille Tervo BT_DBG("%s", hdev->name); 51356ed58ec5SVille Tervo 513652087a79SLuiz Augusto von Dentz if (!hci_conn_num(hdev, LE_LINK)) 513752087a79SLuiz Augusto von Dentz return; 513852087a79SLuiz Augusto von Dentz 51394a964404SMarcel Holtmann if (!test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) { 51406ed58ec5SVille Tervo /* LE tx timeout must be longer than maximum 51416ed58ec5SVille Tervo * link supervision timeout (40.9 seconds) */ 5142bae1f5d9SVille Tervo if (!hdev->le_cnt && hdev->le_pkts && 51436ed58ec5SVille Tervo time_after(jiffies, hdev->le_last_tx + HZ * 45)) 5144bae1f5d9SVille Tervo hci_link_tx_to(hdev, LE_LINK); 51456ed58ec5SVille Tervo } 51466ed58ec5SVille Tervo 51476ed58ec5SVille Tervo cnt = hdev->le_pkts ? hdev->le_cnt : hdev->acl_cnt; 514802b20f0bSLuiz Augusto von Dentz tmp = cnt; 514973d80debSLuiz Augusto von Dentz while (cnt && (chan = hci_chan_sent(hdev, LE_LINK, "e))) { 5150ec1cce24SLuiz Augusto von Dentz u32 priority = (skb_peek(&chan->data_q))->priority; 5151ec1cce24SLuiz Augusto von Dentz while (quote-- && (skb = skb_peek(&chan->data_q))) { 515273d80debSLuiz Augusto von Dentz BT_DBG("chan %p skb %p len %d priority %u", chan, skb, 515373d80debSLuiz Augusto von Dentz skb->len, skb->priority); 51546ed58ec5SVille Tervo 5155ec1cce24SLuiz Augusto von Dentz /* Stop if priority has changed */ 5156ec1cce24SLuiz Augusto von Dentz if (skb->priority < priority) 5157ec1cce24SLuiz Augusto von Dentz break; 5158ec1cce24SLuiz Augusto von Dentz 5159ec1cce24SLuiz Augusto von Dentz skb = skb_dequeue(&chan->data_q); 5160ec1cce24SLuiz Augusto von Dentz 516157d17d70SMarcel Holtmann hci_send_frame(hdev, skb); 51626ed58ec5SVille Tervo hdev->le_last_tx = jiffies; 51636ed58ec5SVille Tervo 51646ed58ec5SVille Tervo cnt--; 516573d80debSLuiz Augusto von Dentz chan->sent++; 516673d80debSLuiz Augusto von Dentz chan->conn->sent++; 51676ed58ec5SVille Tervo } 51686ed58ec5SVille Tervo } 516973d80debSLuiz Augusto von Dentz 51706ed58ec5SVille Tervo if (hdev->le_pkts) 51716ed58ec5SVille Tervo hdev->le_cnt = cnt; 51726ed58ec5SVille Tervo else 51736ed58ec5SVille Tervo hdev->acl_cnt = cnt; 517402b20f0bSLuiz Augusto von Dentz 517502b20f0bSLuiz Augusto von Dentz if (cnt != tmp) 517602b20f0bSLuiz Augusto von Dentz hci_prio_recalculate(hdev, LE_LINK); 51776ed58ec5SVille Tervo } 51786ed58ec5SVille Tervo 51793eff45eaSGustavo F. Padovan static void hci_tx_work(struct work_struct *work) 51801da177e4SLinus Torvalds { 51813eff45eaSGustavo F. Padovan struct hci_dev *hdev = container_of(work, struct hci_dev, tx_work); 51821da177e4SLinus Torvalds struct sk_buff *skb; 51831da177e4SLinus Torvalds 51846ed58ec5SVille Tervo BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt, 51856ed58ec5SVille Tervo hdev->sco_cnt, hdev->le_cnt); 51861da177e4SLinus Torvalds 518752de599eSMarcel Holtmann if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 51881da177e4SLinus Torvalds /* Schedule queues and send stuff to HCI driver */ 51891da177e4SLinus Torvalds hci_sched_acl(hdev); 51901da177e4SLinus Torvalds hci_sched_sco(hdev); 5191b6a0dc82SMarcel Holtmann hci_sched_esco(hdev); 51926ed58ec5SVille Tervo hci_sched_le(hdev); 519352de599eSMarcel Holtmann } 51946ed58ec5SVille Tervo 51951da177e4SLinus Torvalds /* Send next queued raw (unknown type) packet */ 51961da177e4SLinus Torvalds while ((skb = skb_dequeue(&hdev->raw_q))) 519757d17d70SMarcel Holtmann hci_send_frame(hdev, skb); 51981da177e4SLinus Torvalds } 51991da177e4SLinus Torvalds 520025985edcSLucas De Marchi /* ----- HCI RX task (incoming data processing) ----- */ 52011da177e4SLinus Torvalds 52021da177e4SLinus Torvalds /* ACL data packet */ 52036039aa73SGustavo Padovan static void hci_acldata_packet(struct hci_dev *hdev, struct sk_buff *skb) 52041da177e4SLinus Torvalds { 52051da177e4SLinus Torvalds struct hci_acl_hdr *hdr = (void *) skb->data; 52061da177e4SLinus Torvalds struct hci_conn *conn; 52071da177e4SLinus Torvalds __u16 handle, flags; 52081da177e4SLinus Torvalds 52091da177e4SLinus Torvalds skb_pull(skb, HCI_ACL_HDR_SIZE); 52101da177e4SLinus Torvalds 52111da177e4SLinus Torvalds handle = __le16_to_cpu(hdr->handle); 52121da177e4SLinus Torvalds flags = hci_flags(handle); 52131da177e4SLinus Torvalds handle = hci_handle(handle); 52141da177e4SLinus Torvalds 5215f0e09510SAndrei Emeltchenko BT_DBG("%s len %d handle 0x%4.4x flags 0x%4.4x", hdev->name, skb->len, 5216a8c5fb1aSGustavo Padovan handle, flags); 52171da177e4SLinus Torvalds 52181da177e4SLinus Torvalds hdev->stat.acl_rx++; 52191da177e4SLinus Torvalds 52201da177e4SLinus Torvalds hci_dev_lock(hdev); 52211da177e4SLinus Torvalds conn = hci_conn_hash_lookup_handle(hdev, handle); 52221da177e4SLinus Torvalds hci_dev_unlock(hdev); 52231da177e4SLinus Torvalds 52241da177e4SLinus Torvalds if (conn) { 522565983fc7SMat Martineau hci_conn_enter_active_mode(conn, BT_POWER_FORCE_ACTIVE_OFF); 522604837f64SMarcel Holtmann 52271da177e4SLinus Torvalds /* Send to upper protocol */ 5228686ebf28SUlisses Furquim l2cap_recv_acldata(conn, skb, flags); 52291da177e4SLinus Torvalds return; 52301da177e4SLinus Torvalds } else { 52311da177e4SLinus Torvalds BT_ERR("%s ACL packet for unknown connection handle %d", 52321da177e4SLinus Torvalds hdev->name, handle); 52331da177e4SLinus Torvalds } 52341da177e4SLinus Torvalds 52351da177e4SLinus Torvalds kfree_skb(skb); 52361da177e4SLinus Torvalds } 52371da177e4SLinus Torvalds 52381da177e4SLinus Torvalds /* SCO data packet */ 52396039aa73SGustavo Padovan static void hci_scodata_packet(struct hci_dev *hdev, struct sk_buff *skb) 52401da177e4SLinus Torvalds { 52411da177e4SLinus Torvalds struct hci_sco_hdr *hdr = (void *) skb->data; 52421da177e4SLinus Torvalds struct hci_conn *conn; 52431da177e4SLinus Torvalds __u16 handle; 52441da177e4SLinus Torvalds 52451da177e4SLinus Torvalds skb_pull(skb, HCI_SCO_HDR_SIZE); 52461da177e4SLinus Torvalds 52471da177e4SLinus Torvalds handle = __le16_to_cpu(hdr->handle); 52481da177e4SLinus Torvalds 5249f0e09510SAndrei Emeltchenko BT_DBG("%s len %d handle 0x%4.4x", hdev->name, skb->len, handle); 52501da177e4SLinus Torvalds 52511da177e4SLinus Torvalds hdev->stat.sco_rx++; 52521da177e4SLinus Torvalds 52531da177e4SLinus Torvalds hci_dev_lock(hdev); 52541da177e4SLinus Torvalds conn = hci_conn_hash_lookup_handle(hdev, handle); 52551da177e4SLinus Torvalds hci_dev_unlock(hdev); 52561da177e4SLinus Torvalds 52571da177e4SLinus Torvalds if (conn) { 52581da177e4SLinus Torvalds /* Send to upper protocol */ 5259686ebf28SUlisses Furquim sco_recv_scodata(conn, skb); 52601da177e4SLinus Torvalds return; 52611da177e4SLinus Torvalds } else { 52621da177e4SLinus Torvalds BT_ERR("%s SCO packet for unknown connection handle %d", 52631da177e4SLinus Torvalds hdev->name, handle); 52641da177e4SLinus Torvalds } 52651da177e4SLinus Torvalds 52661da177e4SLinus Torvalds kfree_skb(skb); 52671da177e4SLinus Torvalds } 52681da177e4SLinus Torvalds 52699238f36aSJohan Hedberg static bool hci_req_is_complete(struct hci_dev *hdev) 52709238f36aSJohan Hedberg { 52719238f36aSJohan Hedberg struct sk_buff *skb; 52729238f36aSJohan Hedberg 52739238f36aSJohan Hedberg skb = skb_peek(&hdev->cmd_q); 52749238f36aSJohan Hedberg if (!skb) 52759238f36aSJohan Hedberg return true; 52769238f36aSJohan Hedberg 52779238f36aSJohan Hedberg return bt_cb(skb)->req.start; 52789238f36aSJohan Hedberg } 52799238f36aSJohan Hedberg 528042c6b129SJohan Hedberg static void hci_resend_last(struct hci_dev *hdev) 528142c6b129SJohan Hedberg { 528242c6b129SJohan Hedberg struct hci_command_hdr *sent; 528342c6b129SJohan Hedberg struct sk_buff *skb; 528442c6b129SJohan Hedberg u16 opcode; 528542c6b129SJohan Hedberg 528642c6b129SJohan Hedberg if (!hdev->sent_cmd) 528742c6b129SJohan Hedberg return; 528842c6b129SJohan Hedberg 528942c6b129SJohan Hedberg sent = (void *) hdev->sent_cmd->data; 529042c6b129SJohan Hedberg opcode = __le16_to_cpu(sent->opcode); 529142c6b129SJohan Hedberg if (opcode == HCI_OP_RESET) 529242c6b129SJohan Hedberg return; 529342c6b129SJohan Hedberg 529442c6b129SJohan Hedberg skb = skb_clone(hdev->sent_cmd, GFP_KERNEL); 529542c6b129SJohan Hedberg if (!skb) 529642c6b129SJohan Hedberg return; 529742c6b129SJohan Hedberg 529842c6b129SJohan Hedberg skb_queue_head(&hdev->cmd_q, skb); 529942c6b129SJohan Hedberg queue_work(hdev->workqueue, &hdev->cmd_work); 530042c6b129SJohan Hedberg } 530142c6b129SJohan Hedberg 53029238f36aSJohan Hedberg void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status) 53039238f36aSJohan Hedberg { 53049238f36aSJohan Hedberg hci_req_complete_t req_complete = NULL; 53059238f36aSJohan Hedberg struct sk_buff *skb; 53069238f36aSJohan Hedberg unsigned long flags; 53079238f36aSJohan Hedberg 53089238f36aSJohan Hedberg BT_DBG("opcode 0x%04x status 0x%02x", opcode, status); 53099238f36aSJohan Hedberg 531042c6b129SJohan Hedberg /* If the completed command doesn't match the last one that was 531142c6b129SJohan Hedberg * sent we need to do special handling of it. 53129238f36aSJohan Hedberg */ 531342c6b129SJohan Hedberg if (!hci_sent_cmd_data(hdev, opcode)) { 531442c6b129SJohan Hedberg /* Some CSR based controllers generate a spontaneous 531542c6b129SJohan Hedberg * reset complete event during init and any pending 531642c6b129SJohan Hedberg * command will never be completed. In such a case we 531742c6b129SJohan Hedberg * need to resend whatever was the last sent 531842c6b129SJohan Hedberg * command. 531942c6b129SJohan Hedberg */ 532042c6b129SJohan Hedberg if (test_bit(HCI_INIT, &hdev->flags) && opcode == HCI_OP_RESET) 532142c6b129SJohan Hedberg hci_resend_last(hdev); 532242c6b129SJohan Hedberg 53239238f36aSJohan Hedberg return; 532442c6b129SJohan Hedberg } 53259238f36aSJohan Hedberg 53269238f36aSJohan Hedberg /* If the command succeeded and there's still more commands in 53279238f36aSJohan Hedberg * this request the request is not yet complete. 53289238f36aSJohan Hedberg */ 53299238f36aSJohan Hedberg if (!status && !hci_req_is_complete(hdev)) 53309238f36aSJohan Hedberg return; 53319238f36aSJohan Hedberg 53329238f36aSJohan Hedberg /* If this was the last command in a request the complete 53339238f36aSJohan Hedberg * callback would be found in hdev->sent_cmd instead of the 53349238f36aSJohan Hedberg * command queue (hdev->cmd_q). 53359238f36aSJohan Hedberg */ 53369238f36aSJohan Hedberg if (hdev->sent_cmd) { 53379238f36aSJohan Hedberg req_complete = bt_cb(hdev->sent_cmd)->req.complete; 533853e21fbcSJohan Hedberg 533953e21fbcSJohan Hedberg if (req_complete) { 534053e21fbcSJohan Hedberg /* We must set the complete callback to NULL to 534153e21fbcSJohan Hedberg * avoid calling the callback more than once if 534253e21fbcSJohan Hedberg * this function gets called again. 534353e21fbcSJohan Hedberg */ 534453e21fbcSJohan Hedberg bt_cb(hdev->sent_cmd)->req.complete = NULL; 534553e21fbcSJohan Hedberg 53469238f36aSJohan Hedberg goto call_complete; 53479238f36aSJohan Hedberg } 534853e21fbcSJohan Hedberg } 53499238f36aSJohan Hedberg 53509238f36aSJohan Hedberg /* Remove all pending commands belonging to this request */ 53519238f36aSJohan Hedberg spin_lock_irqsave(&hdev->cmd_q.lock, flags); 53529238f36aSJohan Hedberg while ((skb = __skb_dequeue(&hdev->cmd_q))) { 53539238f36aSJohan Hedberg if (bt_cb(skb)->req.start) { 53549238f36aSJohan Hedberg __skb_queue_head(&hdev->cmd_q, skb); 53559238f36aSJohan Hedberg break; 53569238f36aSJohan Hedberg } 53579238f36aSJohan Hedberg 53589238f36aSJohan Hedberg req_complete = bt_cb(skb)->req.complete; 53599238f36aSJohan Hedberg kfree_skb(skb); 53609238f36aSJohan Hedberg } 53619238f36aSJohan Hedberg spin_unlock_irqrestore(&hdev->cmd_q.lock, flags); 53629238f36aSJohan Hedberg 53639238f36aSJohan Hedberg call_complete: 53649238f36aSJohan Hedberg if (req_complete) 53659238f36aSJohan Hedberg req_complete(hdev, status); 53669238f36aSJohan Hedberg } 53679238f36aSJohan Hedberg 5368b78752ccSMarcel Holtmann static void hci_rx_work(struct work_struct *work) 53691da177e4SLinus Torvalds { 5370b78752ccSMarcel Holtmann struct hci_dev *hdev = container_of(work, struct hci_dev, rx_work); 53711da177e4SLinus Torvalds struct sk_buff *skb; 53721da177e4SLinus Torvalds 53731da177e4SLinus Torvalds BT_DBG("%s", hdev->name); 53741da177e4SLinus Torvalds 53751da177e4SLinus Torvalds while ((skb = skb_dequeue(&hdev->rx_q))) { 5376cd82e61cSMarcel Holtmann /* Send copy to monitor */ 5377cd82e61cSMarcel Holtmann hci_send_to_monitor(hdev, skb); 5378cd82e61cSMarcel Holtmann 53791da177e4SLinus Torvalds if (atomic_read(&hdev->promisc)) { 53801da177e4SLinus Torvalds /* Send copy to the sockets */ 5381470fe1b5SMarcel Holtmann hci_send_to_sock(hdev, skb); 53821da177e4SLinus Torvalds } 53831da177e4SLinus Torvalds 5384fee746b0SMarcel Holtmann if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { 53851da177e4SLinus Torvalds kfree_skb(skb); 53861da177e4SLinus Torvalds continue; 53871da177e4SLinus Torvalds } 53881da177e4SLinus Torvalds 53891da177e4SLinus Torvalds if (test_bit(HCI_INIT, &hdev->flags)) { 53901da177e4SLinus Torvalds /* Don't process data packets in this states. */ 53910d48d939SMarcel Holtmann switch (bt_cb(skb)->pkt_type) { 53921da177e4SLinus Torvalds case HCI_ACLDATA_PKT: 53931da177e4SLinus Torvalds case HCI_SCODATA_PKT: 53941da177e4SLinus Torvalds kfree_skb(skb); 53951da177e4SLinus Torvalds continue; 53963ff50b79SStephen Hemminger } 53971da177e4SLinus Torvalds } 53981da177e4SLinus Torvalds 53991da177e4SLinus Torvalds /* Process frame */ 54000d48d939SMarcel Holtmann switch (bt_cb(skb)->pkt_type) { 54011da177e4SLinus Torvalds case HCI_EVENT_PKT: 5402b78752ccSMarcel Holtmann BT_DBG("%s Event packet", hdev->name); 54031da177e4SLinus Torvalds hci_event_packet(hdev, skb); 54041da177e4SLinus Torvalds break; 54051da177e4SLinus Torvalds 54061da177e4SLinus Torvalds case HCI_ACLDATA_PKT: 54071da177e4SLinus Torvalds BT_DBG("%s ACL data packet", hdev->name); 54081da177e4SLinus Torvalds hci_acldata_packet(hdev, skb); 54091da177e4SLinus Torvalds break; 54101da177e4SLinus Torvalds 54111da177e4SLinus Torvalds case HCI_SCODATA_PKT: 54121da177e4SLinus Torvalds BT_DBG("%s SCO data packet", hdev->name); 54131da177e4SLinus Torvalds hci_scodata_packet(hdev, skb); 54141da177e4SLinus Torvalds break; 54151da177e4SLinus Torvalds 54161da177e4SLinus Torvalds default: 54171da177e4SLinus Torvalds kfree_skb(skb); 54181da177e4SLinus Torvalds break; 54191da177e4SLinus Torvalds } 54201da177e4SLinus Torvalds } 54211da177e4SLinus Torvalds } 54221da177e4SLinus Torvalds 5423c347b765SGustavo F. Padovan static void hci_cmd_work(struct work_struct *work) 54241da177e4SLinus Torvalds { 5425c347b765SGustavo F. Padovan struct hci_dev *hdev = container_of(work, struct hci_dev, cmd_work); 54261da177e4SLinus Torvalds struct sk_buff *skb; 54271da177e4SLinus Torvalds 54282104786bSAndrei Emeltchenko BT_DBG("%s cmd_cnt %d cmd queued %d", hdev->name, 54292104786bSAndrei Emeltchenko atomic_read(&hdev->cmd_cnt), skb_queue_len(&hdev->cmd_q)); 54301da177e4SLinus Torvalds 54311da177e4SLinus Torvalds /* Send queued commands */ 54325a08ecceSAndrei Emeltchenko if (atomic_read(&hdev->cmd_cnt)) { 54335a08ecceSAndrei Emeltchenko skb = skb_dequeue(&hdev->cmd_q); 54345a08ecceSAndrei Emeltchenko if (!skb) 54355a08ecceSAndrei Emeltchenko return; 54365a08ecceSAndrei Emeltchenko 54371da177e4SLinus Torvalds kfree_skb(hdev->sent_cmd); 54381da177e4SLinus Torvalds 5439a675d7f1SMarcel Holtmann hdev->sent_cmd = skb_clone(skb, GFP_KERNEL); 544070f23020SAndrei Emeltchenko if (hdev->sent_cmd) { 54411da177e4SLinus Torvalds atomic_dec(&hdev->cmd_cnt); 544257d17d70SMarcel Holtmann hci_send_frame(hdev, skb); 54437bdb8a5cSSzymon Janc if (test_bit(HCI_RESET, &hdev->flags)) 544465cc2b49SMarcel Holtmann cancel_delayed_work(&hdev->cmd_timer); 54457bdb8a5cSSzymon Janc else 544665cc2b49SMarcel Holtmann schedule_delayed_work(&hdev->cmd_timer, 544765cc2b49SMarcel Holtmann HCI_CMD_TIMEOUT); 54481da177e4SLinus Torvalds } else { 54491da177e4SLinus Torvalds skb_queue_head(&hdev->cmd_q, skb); 5450c347b765SGustavo F. Padovan queue_work(hdev->workqueue, &hdev->cmd_work); 54511da177e4SLinus Torvalds } 54521da177e4SLinus Torvalds } 54531da177e4SLinus Torvalds } 5454b1efcc28SAndre Guedes 5455b1efcc28SAndre Guedes void hci_req_add_le_scan_disable(struct hci_request *req) 5456b1efcc28SAndre Guedes { 5457b1efcc28SAndre Guedes struct hci_cp_le_set_scan_enable cp; 5458b1efcc28SAndre Guedes 5459b1efcc28SAndre Guedes memset(&cp, 0, sizeof(cp)); 5460b1efcc28SAndre Guedes cp.enable = LE_SCAN_DISABLE; 5461b1efcc28SAndre Guedes hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp); 5462b1efcc28SAndre Guedes } 5463a4790dbdSAndre Guedes 54648540f6c0SMarcel Holtmann static void add_to_white_list(struct hci_request *req, 54658540f6c0SMarcel Holtmann struct hci_conn_params *params) 54668540f6c0SMarcel Holtmann { 54678540f6c0SMarcel Holtmann struct hci_cp_le_add_to_white_list cp; 54688540f6c0SMarcel Holtmann 54698540f6c0SMarcel Holtmann cp.bdaddr_type = params->addr_type; 54708540f6c0SMarcel Holtmann bacpy(&cp.bdaddr, ¶ms->addr); 54718540f6c0SMarcel Holtmann 54728540f6c0SMarcel Holtmann hci_req_add(req, HCI_OP_LE_ADD_TO_WHITE_LIST, sizeof(cp), &cp); 54738540f6c0SMarcel Holtmann } 54748540f6c0SMarcel Holtmann 54758540f6c0SMarcel Holtmann static u8 update_white_list(struct hci_request *req) 54768540f6c0SMarcel Holtmann { 54778540f6c0SMarcel Holtmann struct hci_dev *hdev = req->hdev; 54788540f6c0SMarcel Holtmann struct hci_conn_params *params; 54798540f6c0SMarcel Holtmann struct bdaddr_list *b; 54808540f6c0SMarcel Holtmann uint8_t white_list_entries = 0; 54818540f6c0SMarcel Holtmann 54828540f6c0SMarcel Holtmann /* Go through the current white list programmed into the 54838540f6c0SMarcel Holtmann * controller one by one and check if that address is still 54848540f6c0SMarcel Holtmann * in the list of pending connections or list of devices to 54858540f6c0SMarcel Holtmann * report. If not present in either list, then queue the 54868540f6c0SMarcel Holtmann * command to remove it from the controller. 54878540f6c0SMarcel Holtmann */ 54888540f6c0SMarcel Holtmann list_for_each_entry(b, &hdev->le_white_list, list) { 54898540f6c0SMarcel Holtmann struct hci_cp_le_del_from_white_list cp; 54908540f6c0SMarcel Holtmann 54918540f6c0SMarcel Holtmann if (hci_pend_le_action_lookup(&hdev->pend_le_conns, 54928540f6c0SMarcel Holtmann &b->bdaddr, b->bdaddr_type) || 54938540f6c0SMarcel Holtmann hci_pend_le_action_lookup(&hdev->pend_le_reports, 54948540f6c0SMarcel Holtmann &b->bdaddr, b->bdaddr_type)) { 54958540f6c0SMarcel Holtmann white_list_entries++; 54968540f6c0SMarcel Holtmann continue; 54978540f6c0SMarcel Holtmann } 54988540f6c0SMarcel Holtmann 54998540f6c0SMarcel Holtmann cp.bdaddr_type = b->bdaddr_type; 55008540f6c0SMarcel Holtmann bacpy(&cp.bdaddr, &b->bdaddr); 55018540f6c0SMarcel Holtmann 55028540f6c0SMarcel Holtmann hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST, 55038540f6c0SMarcel Holtmann sizeof(cp), &cp); 55048540f6c0SMarcel Holtmann } 55058540f6c0SMarcel Holtmann 55068540f6c0SMarcel Holtmann /* Since all no longer valid white list entries have been 55078540f6c0SMarcel Holtmann * removed, walk through the list of pending connections 55088540f6c0SMarcel Holtmann * and ensure that any new device gets programmed into 55098540f6c0SMarcel Holtmann * the controller. 55108540f6c0SMarcel Holtmann * 55118540f6c0SMarcel Holtmann * If the list of the devices is larger than the list of 55128540f6c0SMarcel Holtmann * available white list entries in the controller, then 55138540f6c0SMarcel Holtmann * just abort and return filer policy value to not use the 55148540f6c0SMarcel Holtmann * white list. 55158540f6c0SMarcel Holtmann */ 55168540f6c0SMarcel Holtmann list_for_each_entry(params, &hdev->pend_le_conns, action) { 55178540f6c0SMarcel Holtmann if (hci_bdaddr_list_lookup(&hdev->le_white_list, 55188540f6c0SMarcel Holtmann ¶ms->addr, params->addr_type)) 55198540f6c0SMarcel Holtmann continue; 55208540f6c0SMarcel Holtmann 55218540f6c0SMarcel Holtmann if (white_list_entries >= hdev->le_white_list_size) { 55228540f6c0SMarcel Holtmann /* Select filter policy to accept all advertising */ 55238540f6c0SMarcel Holtmann return 0x00; 55248540f6c0SMarcel Holtmann } 55258540f6c0SMarcel Holtmann 552666d8e837SMarcel Holtmann if (hci_find_irk_by_addr(hdev, ¶ms->addr, 552766d8e837SMarcel Holtmann params->addr_type)) { 552866d8e837SMarcel Holtmann /* White list can not be used with RPAs */ 552966d8e837SMarcel Holtmann return 0x00; 553066d8e837SMarcel Holtmann } 553166d8e837SMarcel Holtmann 55328540f6c0SMarcel Holtmann white_list_entries++; 55338540f6c0SMarcel Holtmann add_to_white_list(req, params); 55348540f6c0SMarcel Holtmann } 55358540f6c0SMarcel Holtmann 55368540f6c0SMarcel Holtmann /* After adding all new pending connections, walk through 55378540f6c0SMarcel Holtmann * the list of pending reports and also add these to the 55388540f6c0SMarcel Holtmann * white list if there is still space. 55398540f6c0SMarcel Holtmann */ 55408540f6c0SMarcel Holtmann list_for_each_entry(params, &hdev->pend_le_reports, action) { 55418540f6c0SMarcel Holtmann if (hci_bdaddr_list_lookup(&hdev->le_white_list, 55428540f6c0SMarcel Holtmann ¶ms->addr, params->addr_type)) 55438540f6c0SMarcel Holtmann continue; 55448540f6c0SMarcel Holtmann 55458540f6c0SMarcel Holtmann if (white_list_entries >= hdev->le_white_list_size) { 55468540f6c0SMarcel Holtmann /* Select filter policy to accept all advertising */ 55478540f6c0SMarcel Holtmann return 0x00; 55488540f6c0SMarcel Holtmann } 55498540f6c0SMarcel Holtmann 555066d8e837SMarcel Holtmann if (hci_find_irk_by_addr(hdev, ¶ms->addr, 555166d8e837SMarcel Holtmann params->addr_type)) { 555266d8e837SMarcel Holtmann /* White list can not be used with RPAs */ 555366d8e837SMarcel Holtmann return 0x00; 555466d8e837SMarcel Holtmann } 555566d8e837SMarcel Holtmann 55568540f6c0SMarcel Holtmann white_list_entries++; 55578540f6c0SMarcel Holtmann add_to_white_list(req, params); 55588540f6c0SMarcel Holtmann } 55598540f6c0SMarcel Holtmann 55608540f6c0SMarcel Holtmann /* Select filter policy to use white list */ 55618540f6c0SMarcel Holtmann return 0x01; 55628540f6c0SMarcel Holtmann } 55638540f6c0SMarcel Holtmann 55648ef30fd3SAndre Guedes void hci_req_add_le_passive_scan(struct hci_request *req) 55658ef30fd3SAndre Guedes { 55668ef30fd3SAndre Guedes struct hci_cp_le_set_scan_param param_cp; 55678ef30fd3SAndre Guedes struct hci_cp_le_set_scan_enable enable_cp; 55688ef30fd3SAndre Guedes struct hci_dev *hdev = req->hdev; 55698ef30fd3SAndre Guedes u8 own_addr_type; 55708540f6c0SMarcel Holtmann u8 filter_policy; 55718ef30fd3SAndre Guedes 55726ab535a7SMarcel Holtmann /* Set require_privacy to false since no SCAN_REQ are send 55736ab535a7SMarcel Holtmann * during passive scanning. Not using an unresolvable address 55746ab535a7SMarcel Holtmann * here is important so that peer devices using direct 55756ab535a7SMarcel Holtmann * advertising with our address will be correctly reported 55766ab535a7SMarcel Holtmann * by the controller. 55778ef30fd3SAndre Guedes */ 55786ab535a7SMarcel Holtmann if (hci_update_random_address(req, false, &own_addr_type)) 55798ef30fd3SAndre Guedes return; 55808ef30fd3SAndre Guedes 55818540f6c0SMarcel Holtmann /* Adding or removing entries from the white list must 55828540f6c0SMarcel Holtmann * happen before enabling scanning. The controller does 55838540f6c0SMarcel Holtmann * not allow white list modification while scanning. 55848540f6c0SMarcel Holtmann */ 55858540f6c0SMarcel Holtmann filter_policy = update_white_list(req); 55868540f6c0SMarcel Holtmann 55878ef30fd3SAndre Guedes memset(¶m_cp, 0, sizeof(param_cp)); 55888ef30fd3SAndre Guedes param_cp.type = LE_SCAN_PASSIVE; 55898ef30fd3SAndre Guedes param_cp.interval = cpu_to_le16(hdev->le_scan_interval); 55908ef30fd3SAndre Guedes param_cp.window = cpu_to_le16(hdev->le_scan_window); 55918ef30fd3SAndre Guedes param_cp.own_address_type = own_addr_type; 55928540f6c0SMarcel Holtmann param_cp.filter_policy = filter_policy; 55938ef30fd3SAndre Guedes hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp), 55948ef30fd3SAndre Guedes ¶m_cp); 55958ef30fd3SAndre Guedes 55968ef30fd3SAndre Guedes memset(&enable_cp, 0, sizeof(enable_cp)); 55978ef30fd3SAndre Guedes enable_cp.enable = LE_SCAN_ENABLE; 55984340a124SAndre Guedes enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE; 55998ef30fd3SAndre Guedes hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp), 56008ef30fd3SAndre Guedes &enable_cp); 56018ef30fd3SAndre Guedes } 56028ef30fd3SAndre Guedes 5603a4790dbdSAndre Guedes static void update_background_scan_complete(struct hci_dev *hdev, u8 status) 5604a4790dbdSAndre Guedes { 5605a4790dbdSAndre Guedes if (status) 5606a4790dbdSAndre Guedes BT_DBG("HCI request failed to update background scanning: " 5607a4790dbdSAndre Guedes "status 0x%2.2x", status); 5608a4790dbdSAndre Guedes } 5609a4790dbdSAndre Guedes 5610a4790dbdSAndre Guedes /* This function controls the background scanning based on hdev->pend_le_conns 5611a4790dbdSAndre Guedes * list. If there are pending LE connection we start the background scanning, 5612a4790dbdSAndre Guedes * otherwise we stop it. 5613a4790dbdSAndre Guedes * 5614a4790dbdSAndre Guedes * This function requires the caller holds hdev->lock. 5615a4790dbdSAndre Guedes */ 5616a4790dbdSAndre Guedes void hci_update_background_scan(struct hci_dev *hdev) 5617a4790dbdSAndre Guedes { 5618a4790dbdSAndre Guedes struct hci_request req; 5619a4790dbdSAndre Guedes struct hci_conn *conn; 5620a4790dbdSAndre Guedes int err; 5621a4790dbdSAndre Guedes 5622c20c02d5SMarcel Holtmann if (!test_bit(HCI_UP, &hdev->flags) || 5623c20c02d5SMarcel Holtmann test_bit(HCI_INIT, &hdev->flags) || 5624c20c02d5SMarcel Holtmann test_bit(HCI_SETUP, &hdev->dev_flags) || 5625d603b76bSMarcel Holtmann test_bit(HCI_CONFIG, &hdev->dev_flags) || 5626b8221770SMarcel Holtmann test_bit(HCI_AUTO_OFF, &hdev->dev_flags) || 5627c20c02d5SMarcel Holtmann test_bit(HCI_UNREGISTER, &hdev->dev_flags)) 56281c1697c0SMarcel Holtmann return; 56291c1697c0SMarcel Holtmann 5630a70f4b5fSJohan Hedberg /* No point in doing scanning if LE support hasn't been enabled */ 5631a70f4b5fSJohan Hedberg if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) 5632a70f4b5fSJohan Hedberg return; 5633a70f4b5fSJohan Hedberg 5634ae23ada4SJohan Hedberg /* If discovery is active don't interfere with it */ 5635ae23ada4SJohan Hedberg if (hdev->discovery.state != DISCOVERY_STOPPED) 5636ae23ada4SJohan Hedberg return; 5637ae23ada4SJohan Hedberg 5638a4790dbdSAndre Guedes hci_req_init(&req, hdev); 5639a4790dbdSAndre Guedes 5640d1d588c1SJohan Hedberg if (list_empty(&hdev->pend_le_conns) && 564166f8455aSJohan Hedberg list_empty(&hdev->pend_le_reports)) { 56420d2bf134SJohan Hedberg /* If there is no pending LE connections or devices 56430d2bf134SJohan Hedberg * to be scanned for, we should stop the background 56440d2bf134SJohan Hedberg * scanning. 5645a4790dbdSAndre Guedes */ 5646a4790dbdSAndre Guedes 5647a4790dbdSAndre Guedes /* If controller is not scanning we are done. */ 5648a4790dbdSAndre Guedes if (!test_bit(HCI_LE_SCAN, &hdev->dev_flags)) 5649a4790dbdSAndre Guedes return; 5650a4790dbdSAndre Guedes 5651a4790dbdSAndre Guedes hci_req_add_le_scan_disable(&req); 5652a4790dbdSAndre Guedes 5653a4790dbdSAndre Guedes BT_DBG("%s stopping background scanning", hdev->name); 5654a4790dbdSAndre Guedes } else { 5655a4790dbdSAndre Guedes /* If there is at least one pending LE connection, we should 5656a4790dbdSAndre Guedes * keep the background scan running. 5657a4790dbdSAndre Guedes */ 5658a4790dbdSAndre Guedes 5659a4790dbdSAndre Guedes /* If controller is connecting, we should not start scanning 5660a4790dbdSAndre Guedes * since some controllers are not able to scan and connect at 5661a4790dbdSAndre Guedes * the same time. 5662a4790dbdSAndre Guedes */ 5663a4790dbdSAndre Guedes conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); 5664a4790dbdSAndre Guedes if (conn) 5665a4790dbdSAndre Guedes return; 5666a4790dbdSAndre Guedes 56674340a124SAndre Guedes /* If controller is currently scanning, we stop it to ensure we 56684340a124SAndre Guedes * don't miss any advertising (due to duplicates filter). 56694340a124SAndre Guedes */ 56704340a124SAndre Guedes if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) 56714340a124SAndre Guedes hci_req_add_le_scan_disable(&req); 56724340a124SAndre Guedes 56738ef30fd3SAndre Guedes hci_req_add_le_passive_scan(&req); 5674a4790dbdSAndre Guedes 5675a4790dbdSAndre Guedes BT_DBG("%s starting background scanning", hdev->name); 5676a4790dbdSAndre Guedes } 5677a4790dbdSAndre Guedes 5678a4790dbdSAndre Guedes err = hci_req_run(&req, update_background_scan_complete); 5679a4790dbdSAndre Guedes if (err) 5680a4790dbdSAndre Guedes BT_ERR("Failed to run HCI request: err %d", err); 5681a4790dbdSAndre Guedes } 5682432df05eSJohan Hedberg 568322f433dcSJohan Hedberg static bool disconnected_whitelist_entries(struct hci_dev *hdev) 568422f433dcSJohan Hedberg { 568522f433dcSJohan Hedberg struct bdaddr_list *b; 568622f433dcSJohan Hedberg 568722f433dcSJohan Hedberg list_for_each_entry(b, &hdev->whitelist, list) { 568822f433dcSJohan Hedberg struct hci_conn *conn; 568922f433dcSJohan Hedberg 569022f433dcSJohan Hedberg conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &b->bdaddr); 569122f433dcSJohan Hedberg if (!conn) 569222f433dcSJohan Hedberg return true; 569322f433dcSJohan Hedberg 569422f433dcSJohan Hedberg if (conn->state != BT_CONNECTED && conn->state != BT_CONFIG) 569522f433dcSJohan Hedberg return true; 569622f433dcSJohan Hedberg } 569722f433dcSJohan Hedberg 569822f433dcSJohan Hedberg return false; 569922f433dcSJohan Hedberg } 570022f433dcSJohan Hedberg 5701432df05eSJohan Hedberg void hci_update_page_scan(struct hci_dev *hdev, struct hci_request *req) 5702432df05eSJohan Hedberg { 5703432df05eSJohan Hedberg u8 scan; 5704432df05eSJohan Hedberg 5705432df05eSJohan Hedberg if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) 5706432df05eSJohan Hedberg return; 5707432df05eSJohan Hedberg 5708432df05eSJohan Hedberg if (!hdev_is_powered(hdev)) 5709432df05eSJohan Hedberg return; 5710432df05eSJohan Hedberg 5711432df05eSJohan Hedberg if (mgmt_powering_down(hdev)) 5712432df05eSJohan Hedberg return; 5713432df05eSJohan Hedberg 5714432df05eSJohan Hedberg if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags) || 571522f433dcSJohan Hedberg disconnected_whitelist_entries(hdev)) 5716432df05eSJohan Hedberg scan = SCAN_PAGE; 5717432df05eSJohan Hedberg else 5718432df05eSJohan Hedberg scan = SCAN_DISABLED; 5719432df05eSJohan Hedberg 5720432df05eSJohan Hedberg if (test_bit(HCI_PSCAN, &hdev->flags) == !!(scan & SCAN_PAGE)) 5721432df05eSJohan Hedberg return; 5722432df05eSJohan Hedberg 5723432df05eSJohan Hedberg if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) 5724432df05eSJohan Hedberg scan |= SCAN_INQUIRY; 5725432df05eSJohan Hedberg 5726432df05eSJohan Hedberg if (req) 5727432df05eSJohan Hedberg hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); 5728432df05eSJohan Hedberg else 5729432df05eSJohan Hedberg hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); 5730432df05eSJohan Hedberg } 5731