18c3e34a4SDavid Howells /* /proc/net/ support for AF_RXRPC 28c3e34a4SDavid Howells * 38c3e34a4SDavid Howells * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 48c3e34a4SDavid Howells * Written by David Howells (dhowells@redhat.com) 58c3e34a4SDavid Howells * 68c3e34a4SDavid Howells * This program is free software; you can redistribute it and/or 78c3e34a4SDavid Howells * modify it under the terms of the GNU General Public License 88c3e34a4SDavid Howells * as published by the Free Software Foundation; either version 98c3e34a4SDavid Howells * 2 of the License, or (at your option) any later version. 108c3e34a4SDavid Howells */ 118c3e34a4SDavid Howells 128c3e34a4SDavid Howells #include <linux/module.h> 138c3e34a4SDavid Howells #include <net/sock.h> 148c3e34a4SDavid Howells #include <net/af_rxrpc.h> 158c3e34a4SDavid Howells #include "ar-internal.h" 168c3e34a4SDavid Howells 17bba304dbSDavid Howells static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = { 188c3e34a4SDavid Howells [RXRPC_CONN_UNUSED] = "Unused ", 198c3e34a4SDavid Howells [RXRPC_CONN_CLIENT] = "Client ", 20bba304dbSDavid Howells [RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ", 21bba304dbSDavid Howells [RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ", 22bba304dbSDavid Howells [RXRPC_CONN_SERVICE] = "SvSecure", 238c3e34a4SDavid Howells [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort", 248c3e34a4SDavid Howells [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort", 258c3e34a4SDavid Howells }; 268c3e34a4SDavid Howells 278c3e34a4SDavid Howells /* 288c3e34a4SDavid Howells * generate a list of extant and dead calls in /proc/net/rxrpc_calls 298c3e34a4SDavid Howells */ 308c3e34a4SDavid Howells static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos) 318c3e34a4SDavid Howells { 328d94aa38SDavid Howells rcu_read_lock(); 338c3e34a4SDavid Howells read_lock(&rxrpc_call_lock); 348c3e34a4SDavid Howells return seq_list_start_head(&rxrpc_calls, *_pos); 358c3e34a4SDavid Howells } 368c3e34a4SDavid Howells 378c3e34a4SDavid Howells static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) 388c3e34a4SDavid Howells { 398c3e34a4SDavid Howells return seq_list_next(v, &rxrpc_calls, pos); 408c3e34a4SDavid Howells } 418c3e34a4SDavid Howells 428c3e34a4SDavid Howells static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) 438c3e34a4SDavid Howells { 448c3e34a4SDavid Howells read_unlock(&rxrpc_call_lock); 458d94aa38SDavid Howells rcu_read_unlock(); 468c3e34a4SDavid Howells } 478c3e34a4SDavid Howells 488c3e34a4SDavid Howells static int rxrpc_call_seq_show(struct seq_file *seq, void *v) 498c3e34a4SDavid Howells { 50df5d8bf7SDavid Howells struct rxrpc_local *local; 51df5d8bf7SDavid Howells struct rxrpc_sock *rx; 52df5d8bf7SDavid Howells struct rxrpc_peer *peer; 538c3e34a4SDavid Howells struct rxrpc_call *call; 548c3e34a4SDavid Howells char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; 558c3e34a4SDavid Howells 568c3e34a4SDavid Howells if (v == &rxrpc_calls) { 578c3e34a4SDavid Howells seq_puts(seq, 588c3e34a4SDavid Howells "Proto Local Remote " 598c3e34a4SDavid Howells " SvID ConnID CallID End Use State Abort " 608c3e34a4SDavid Howells " UserID\n"); 618c3e34a4SDavid Howells return 0; 628c3e34a4SDavid Howells } 638c3e34a4SDavid Howells 648c3e34a4SDavid Howells call = list_entry(v, struct rxrpc_call, link); 658c3e34a4SDavid Howells 668d94aa38SDavid Howells rx = rcu_dereference(call->socket); 67df5d8bf7SDavid Howells if (rx) { 68df5d8bf7SDavid Howells local = READ_ONCE(rx->local); 69df5d8bf7SDavid Howells if (local) 708c3e34a4SDavid Howells sprintf(lbuff, "%pI4:%u", 71df5d8bf7SDavid Howells &local->srx.transport.sin.sin_addr, 72df5d8bf7SDavid Howells ntohs(local->srx.transport.sin.sin_port)); 73df5d8bf7SDavid Howells else 74df5d8bf7SDavid Howells strcpy(lbuff, "no_local"); 75df5d8bf7SDavid Howells } else { 76df5d8bf7SDavid Howells strcpy(lbuff, "no_socket"); 77df5d8bf7SDavid Howells } 788c3e34a4SDavid Howells 79df5d8bf7SDavid Howells peer = call->peer; 80df5d8bf7SDavid Howells if (peer) 818c3e34a4SDavid Howells sprintf(rbuff, "%pI4:%u", 82df5d8bf7SDavid Howells &peer->srx.transport.sin.sin_addr, 83df5d8bf7SDavid Howells ntohs(peer->srx.transport.sin.sin_port)); 84f4e7da8cSDavid Howells else 85f4e7da8cSDavid Howells strcpy(rbuff, "no_connection"); 868c3e34a4SDavid Howells 878c3e34a4SDavid Howells seq_printf(seq, 888c3e34a4SDavid Howells "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" 898c3e34a4SDavid Howells " %-8.8s %08x %lx\n", 908c3e34a4SDavid Howells lbuff, 918c3e34a4SDavid Howells rbuff, 92f4e7da8cSDavid Howells call->service_id, 938c3e34a4SDavid Howells call->cid, 948c3e34a4SDavid Howells call->call_id, 95dabe5a79SDavid Howells rxrpc_is_service_call(call) ? "Svc" : "Clt", 968c3e34a4SDavid Howells atomic_read(&call->usage), 978c3e34a4SDavid Howells rxrpc_call_states[call->state], 98f5c17aaeSDavid Howells call->abort_code, 998c3e34a4SDavid Howells call->user_call_ID); 1008c3e34a4SDavid Howells 1018c3e34a4SDavid Howells return 0; 1028c3e34a4SDavid Howells } 1038c3e34a4SDavid Howells 1048c3e34a4SDavid Howells static const struct seq_operations rxrpc_call_seq_ops = { 1058c3e34a4SDavid Howells .start = rxrpc_call_seq_start, 1068c3e34a4SDavid Howells .next = rxrpc_call_seq_next, 1078c3e34a4SDavid Howells .stop = rxrpc_call_seq_stop, 1088c3e34a4SDavid Howells .show = rxrpc_call_seq_show, 1098c3e34a4SDavid Howells }; 1108c3e34a4SDavid Howells 1118c3e34a4SDavid Howells static int rxrpc_call_seq_open(struct inode *inode, struct file *file) 1128c3e34a4SDavid Howells { 1138c3e34a4SDavid Howells return seq_open(file, &rxrpc_call_seq_ops); 1148c3e34a4SDavid Howells } 1158c3e34a4SDavid Howells 1168c3e34a4SDavid Howells const struct file_operations rxrpc_call_seq_fops = { 1178c3e34a4SDavid Howells .owner = THIS_MODULE, 1188c3e34a4SDavid Howells .open = rxrpc_call_seq_open, 1198c3e34a4SDavid Howells .read = seq_read, 1208c3e34a4SDavid Howells .llseek = seq_lseek, 1218c3e34a4SDavid Howells .release = seq_release, 1228c3e34a4SDavid Howells }; 1238c3e34a4SDavid Howells 1248c3e34a4SDavid Howells /* 1258c3e34a4SDavid Howells * generate a list of extant virtual connections in /proc/net/rxrpc_conns 1268c3e34a4SDavid Howells */ 1278c3e34a4SDavid Howells static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos) 1288c3e34a4SDavid Howells { 1298c3e34a4SDavid Howells read_lock(&rxrpc_connection_lock); 1304d028b2cSDavid Howells return seq_list_start_head(&rxrpc_connection_proc_list, *_pos); 1318c3e34a4SDavid Howells } 1328c3e34a4SDavid Howells 1338c3e34a4SDavid Howells static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, 1348c3e34a4SDavid Howells loff_t *pos) 1358c3e34a4SDavid Howells { 1364d028b2cSDavid Howells return seq_list_next(v, &rxrpc_connection_proc_list, pos); 1378c3e34a4SDavid Howells } 1388c3e34a4SDavid Howells 1398c3e34a4SDavid Howells static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) 1408c3e34a4SDavid Howells { 1418c3e34a4SDavid Howells read_unlock(&rxrpc_connection_lock); 1428c3e34a4SDavid Howells } 1438c3e34a4SDavid Howells 1448c3e34a4SDavid Howells static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) 1458c3e34a4SDavid Howells { 1468c3e34a4SDavid Howells struct rxrpc_connection *conn; 1478c3e34a4SDavid Howells char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; 1488c3e34a4SDavid Howells 1494d028b2cSDavid Howells if (v == &rxrpc_connection_proc_list) { 1508c3e34a4SDavid Howells seq_puts(seq, 1518c3e34a4SDavid Howells "Proto Local Remote " 152a1399f8bSDavid Howells " SvID ConnID End Use State Key " 1538c3e34a4SDavid Howells " Serial ISerial\n" 1548c3e34a4SDavid Howells ); 1558c3e34a4SDavid Howells return 0; 1568c3e34a4SDavid Howells } 1578c3e34a4SDavid Howells 1584d028b2cSDavid Howells conn = list_entry(v, struct rxrpc_connection, proc_link); 1598c3e34a4SDavid Howells 1608c3e34a4SDavid Howells sprintf(lbuff, "%pI4:%u", 16185f32278SDavid Howells &conn->params.local->srx.transport.sin.sin_addr, 16285f32278SDavid Howells ntohs(conn->params.local->srx.transport.sin.sin_port)); 1638c3e34a4SDavid Howells 1648c3e34a4SDavid Howells sprintf(rbuff, "%pI4:%u", 16585f32278SDavid Howells &conn->params.peer->srx.transport.sin.sin_addr, 16685f32278SDavid Howells ntohs(conn->params.peer->srx.transport.sin.sin_port)); 1678c3e34a4SDavid Howells 1688c3e34a4SDavid Howells seq_printf(seq, 169a1399f8bSDavid Howells "UDP %-22.22s %-22.22s %4x %08x %s %3u" 1708c3e34a4SDavid Howells " %s %08x %08x %08x\n", 1718c3e34a4SDavid Howells lbuff, 1728c3e34a4SDavid Howells rbuff, 17319ffa01cSDavid Howells conn->params.service_id, 17419ffa01cSDavid Howells conn->proto.cid, 17519ffa01cSDavid Howells rxrpc_conn_is_service(conn) ? "Svc" : "Clt", 1768c3e34a4SDavid Howells atomic_read(&conn->usage), 1778c3e34a4SDavid Howells rxrpc_conn_states[conn->state], 17819ffa01cSDavid Howells key_serial(conn->params.key), 1798c3e34a4SDavid Howells atomic_read(&conn->serial), 180563ea7d5SDavid Howells conn->hi_serial); 1818c3e34a4SDavid Howells 1828c3e34a4SDavid Howells return 0; 1838c3e34a4SDavid Howells } 1848c3e34a4SDavid Howells 1858c3e34a4SDavid Howells static const struct seq_operations rxrpc_connection_seq_ops = { 1868c3e34a4SDavid Howells .start = rxrpc_connection_seq_start, 1878c3e34a4SDavid Howells .next = rxrpc_connection_seq_next, 1888c3e34a4SDavid Howells .stop = rxrpc_connection_seq_stop, 1898c3e34a4SDavid Howells .show = rxrpc_connection_seq_show, 1908c3e34a4SDavid Howells }; 1918c3e34a4SDavid Howells 1928c3e34a4SDavid Howells 1938c3e34a4SDavid Howells static int rxrpc_connection_seq_open(struct inode *inode, struct file *file) 1948c3e34a4SDavid Howells { 1958c3e34a4SDavid Howells return seq_open(file, &rxrpc_connection_seq_ops); 1968c3e34a4SDavid Howells } 1978c3e34a4SDavid Howells 1988c3e34a4SDavid Howells const struct file_operations rxrpc_connection_seq_fops = { 1998c3e34a4SDavid Howells .owner = THIS_MODULE, 2008c3e34a4SDavid Howells .open = rxrpc_connection_seq_open, 2018c3e34a4SDavid Howells .read = seq_read, 2028c3e34a4SDavid Howells .llseek = seq_lseek, 2038c3e34a4SDavid Howells .release = seq_release, 2048c3e34a4SDavid Howells }; 205