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 ", 2000e90712SDavid Howells [RXRPC_CONN_SERVICE_PREALLOC] = "SvPrealc", 21bba304dbSDavid Howells [RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ", 22bba304dbSDavid Howells [RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ", 23bba304dbSDavid Howells [RXRPC_CONN_SERVICE] = "SvSecure", 248c3e34a4SDavid Howells [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort", 258c3e34a4SDavid Howells [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort", 268c3e34a4SDavid Howells }; 278c3e34a4SDavid Howells 288c3e34a4SDavid Howells /* 298c3e34a4SDavid Howells * generate a list of extant and dead calls in /proc/net/rxrpc_calls 308c3e34a4SDavid Howells */ 318c3e34a4SDavid Howells static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos) 3288f2a825SDavid Howells __acquires(rcu) 3388f2a825SDavid Howells __acquires(rxnet->call_lock) 348c3e34a4SDavid Howells { 352baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 362baec2c3SDavid Howells 378d94aa38SDavid Howells rcu_read_lock(); 382baec2c3SDavid Howells read_lock(&rxnet->call_lock); 392baec2c3SDavid Howells return seq_list_start_head(&rxnet->calls, *_pos); 408c3e34a4SDavid Howells } 418c3e34a4SDavid Howells 428c3e34a4SDavid Howells static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) 438c3e34a4SDavid Howells { 442baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 452baec2c3SDavid Howells 462baec2c3SDavid Howells return seq_list_next(v, &rxnet->calls, pos); 478c3e34a4SDavid Howells } 488c3e34a4SDavid Howells 498c3e34a4SDavid Howells static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) 5088f2a825SDavid Howells __releases(rxnet->call_lock) 5188f2a825SDavid Howells __releases(rcu) 528c3e34a4SDavid Howells { 532baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 542baec2c3SDavid Howells 552baec2c3SDavid Howells read_unlock(&rxnet->call_lock); 568d94aa38SDavid Howells rcu_read_unlock(); 578c3e34a4SDavid Howells } 588c3e34a4SDavid Howells 598c3e34a4SDavid Howells static int rxrpc_call_seq_show(struct seq_file *seq, void *v) 608c3e34a4SDavid Howells { 61df5d8bf7SDavid Howells struct rxrpc_local *local; 62df5d8bf7SDavid Howells struct rxrpc_sock *rx; 63df5d8bf7SDavid Howells struct rxrpc_peer *peer; 648c3e34a4SDavid Howells struct rxrpc_call *call; 652baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 66770b26deSWei Yongjun unsigned long timeout = 0; 673e018dafSDavid Howells rxrpc_seq_t tx_hard_ack, rx_hard_ack; 6875b54cb5SDavid Howells char lbuff[50], rbuff[50]; 698c3e34a4SDavid Howells 702baec2c3SDavid Howells if (v == &rxnet->calls) { 718c3e34a4SDavid Howells seq_puts(seq, 7275b54cb5SDavid Howells "Proto Local " 7375b54cb5SDavid Howells " Remote " 748c3e34a4SDavid Howells " SvID ConnID CallID End Use State Abort " 756b97bd7aSDavid Howells " UserID TxSeq TW RxSeq RW RxSerial RxTimo\n"); 768c3e34a4SDavid Howells return 0; 778c3e34a4SDavid Howells } 788c3e34a4SDavid Howells 798c3e34a4SDavid Howells call = list_entry(v, struct rxrpc_call, link); 808c3e34a4SDavid Howells 818d94aa38SDavid Howells rx = rcu_dereference(call->socket); 82df5d8bf7SDavid Howells if (rx) { 83df5d8bf7SDavid Howells local = READ_ONCE(rx->local); 84df5d8bf7SDavid Howells if (local) 8575b54cb5SDavid Howells sprintf(lbuff, "%pISpc", &local->srx.transport); 86df5d8bf7SDavid Howells else 87df5d8bf7SDavid Howells strcpy(lbuff, "no_local"); 88df5d8bf7SDavid Howells } else { 89df5d8bf7SDavid Howells strcpy(lbuff, "no_socket"); 90df5d8bf7SDavid Howells } 918c3e34a4SDavid Howells 92df5d8bf7SDavid Howells peer = call->peer; 93df5d8bf7SDavid Howells if (peer) 9475b54cb5SDavid Howells sprintf(rbuff, "%pISpc", &peer->srx.transport); 95f4e7da8cSDavid Howells else 96f4e7da8cSDavid Howells strcpy(rbuff, "no_connection"); 978c3e34a4SDavid Howells 98887763bbSDavid Howells if (call->state != RXRPC_CALL_SERVER_PREALLOC) { 99887763bbSDavid Howells timeout = READ_ONCE(call->expect_rx_by); 100887763bbSDavid Howells timeout -= jiffies; 101887763bbSDavid Howells } 102887763bbSDavid Howells 1033e018dafSDavid Howells tx_hard_ack = READ_ONCE(call->tx_hard_ack); 1043e018dafSDavid Howells rx_hard_ack = READ_ONCE(call->rx_hard_ack); 1058c3e34a4SDavid Howells seq_printf(seq, 10675b54cb5SDavid Howells "UDP %-47.47s %-47.47s %4x %08x %08x %s %3u" 1076b97bd7aSDavid Howells " %-8.8s %08x %lx %08x %02x %08x %02x %08x %06lx\n", 1088c3e34a4SDavid Howells lbuff, 1098c3e34a4SDavid Howells rbuff, 110f4e7da8cSDavid Howells call->service_id, 1118c3e34a4SDavid Howells call->cid, 1128c3e34a4SDavid Howells call->call_id, 113dabe5a79SDavid Howells rxrpc_is_service_call(call) ? "Svc" : "Clt", 1148c3e34a4SDavid Howells atomic_read(&call->usage), 1158c3e34a4SDavid Howells rxrpc_call_states[call->state], 116f5c17aaeSDavid Howells call->abort_code, 1173e018dafSDavid Howells call->user_call_ID, 1183e018dafSDavid Howells tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack, 119887763bbSDavid Howells rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack, 1206b97bd7aSDavid Howells call->rx_serial, 121887763bbSDavid Howells timeout); 1228c3e34a4SDavid Howells 1238c3e34a4SDavid Howells return 0; 1248c3e34a4SDavid Howells } 1258c3e34a4SDavid Howells 126c3506372SChristoph Hellwig const struct seq_operations rxrpc_call_seq_ops = { 1278c3e34a4SDavid Howells .start = rxrpc_call_seq_start, 1288c3e34a4SDavid Howells .next = rxrpc_call_seq_next, 1298c3e34a4SDavid Howells .stop = rxrpc_call_seq_stop, 1308c3e34a4SDavid Howells .show = rxrpc_call_seq_show, 1318c3e34a4SDavid Howells }; 1328c3e34a4SDavid Howells 1338c3e34a4SDavid Howells /* 1348c3e34a4SDavid Howells * generate a list of extant virtual connections in /proc/net/rxrpc_conns 1358c3e34a4SDavid Howells */ 1368c3e34a4SDavid Howells static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos) 13788f2a825SDavid Howells __acquires(rxnet->conn_lock) 1388c3e34a4SDavid Howells { 1392baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 1402baec2c3SDavid Howells 1412baec2c3SDavid Howells read_lock(&rxnet->conn_lock); 1422baec2c3SDavid Howells return seq_list_start_head(&rxnet->conn_proc_list, *_pos); 1438c3e34a4SDavid Howells } 1448c3e34a4SDavid Howells 1458c3e34a4SDavid Howells static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, 1468c3e34a4SDavid Howells loff_t *pos) 1478c3e34a4SDavid Howells { 1482baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 1492baec2c3SDavid Howells 1502baec2c3SDavid Howells return seq_list_next(v, &rxnet->conn_proc_list, pos); 1518c3e34a4SDavid Howells } 1528c3e34a4SDavid Howells 1538c3e34a4SDavid Howells static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) 15488f2a825SDavid Howells __releases(rxnet->conn_lock) 1558c3e34a4SDavid Howells { 1562baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 1572baec2c3SDavid Howells 1582baec2c3SDavid Howells read_unlock(&rxnet->conn_lock); 1598c3e34a4SDavid Howells } 1608c3e34a4SDavid Howells 1618c3e34a4SDavid Howells static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) 1628c3e34a4SDavid Howells { 1638c3e34a4SDavid Howells struct rxrpc_connection *conn; 1642baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 16575b54cb5SDavid Howells char lbuff[50], rbuff[50]; 1668c3e34a4SDavid Howells 1672baec2c3SDavid Howells if (v == &rxnet->conn_proc_list) { 1688c3e34a4SDavid Howells seq_puts(seq, 16975b54cb5SDavid Howells "Proto Local " 17075b54cb5SDavid Howells " Remote " 171a1399f8bSDavid Howells " SvID ConnID End Use State Key " 1728c3e34a4SDavid Howells " Serial ISerial\n" 1738c3e34a4SDavid Howells ); 1748c3e34a4SDavid Howells return 0; 1758c3e34a4SDavid Howells } 1768c3e34a4SDavid Howells 1774d028b2cSDavid Howells conn = list_entry(v, struct rxrpc_connection, proc_link); 17800e90712SDavid Howells if (conn->state == RXRPC_CONN_SERVICE_PREALLOC) { 17900e90712SDavid Howells strcpy(lbuff, "no_local"); 18000e90712SDavid Howells strcpy(rbuff, "no_connection"); 18100e90712SDavid Howells goto print; 18200e90712SDavid Howells } 1838c3e34a4SDavid Howells 18475b54cb5SDavid Howells sprintf(lbuff, "%pISpc", &conn->params.local->srx.transport); 1858c3e34a4SDavid Howells 18675b54cb5SDavid Howells sprintf(rbuff, "%pISpc", &conn->params.peer->srx.transport); 18700e90712SDavid Howells print: 1888c3e34a4SDavid Howells seq_printf(seq, 18975b54cb5SDavid Howells "UDP %-47.47s %-47.47s %4x %08x %s %3u" 1906b97bd7aSDavid Howells " %s %08x %08x %08x %08x %08x %08x %08x\n", 1918c3e34a4SDavid Howells lbuff, 1928c3e34a4SDavid Howells rbuff, 19368d6d1aeSDavid Howells conn->service_id, 19419ffa01cSDavid Howells conn->proto.cid, 19519ffa01cSDavid Howells rxrpc_conn_is_service(conn) ? "Svc" : "Clt", 1968c3e34a4SDavid Howells atomic_read(&conn->usage), 1978c3e34a4SDavid Howells rxrpc_conn_states[conn->state], 19819ffa01cSDavid Howells key_serial(conn->params.key), 1998c3e34a4SDavid Howells atomic_read(&conn->serial), 2006b97bd7aSDavid Howells conn->hi_serial, 2016b97bd7aSDavid Howells conn->channels[0].call_id, 2026b97bd7aSDavid Howells conn->channels[1].call_id, 2036b97bd7aSDavid Howells conn->channels[2].call_id, 2046b97bd7aSDavid Howells conn->channels[3].call_id); 2058c3e34a4SDavid Howells 2068c3e34a4SDavid Howells return 0; 2078c3e34a4SDavid Howells } 2088c3e34a4SDavid Howells 209c3506372SChristoph Hellwig const struct seq_operations rxrpc_connection_seq_ops = { 2108c3e34a4SDavid Howells .start = rxrpc_connection_seq_start, 2118c3e34a4SDavid Howells .next = rxrpc_connection_seq_next, 2128c3e34a4SDavid Howells .stop = rxrpc_connection_seq_stop, 2138c3e34a4SDavid Howells .show = rxrpc_connection_seq_show, 2148c3e34a4SDavid Howells }; 215