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)); 663e018dafSDavid Howells rxrpc_seq_t tx_hard_ack, rx_hard_ack; 6775b54cb5SDavid Howells char lbuff[50], rbuff[50]; 688c3e34a4SDavid Howells 692baec2c3SDavid Howells if (v == &rxnet->calls) { 708c3e34a4SDavid Howells seq_puts(seq, 7175b54cb5SDavid Howells "Proto Local " 7275b54cb5SDavid Howells " Remote " 738c3e34a4SDavid Howells " SvID ConnID CallID End Use State Abort " 748c3e34a4SDavid Howells " UserID\n"); 758c3e34a4SDavid Howells return 0; 768c3e34a4SDavid Howells } 778c3e34a4SDavid Howells 788c3e34a4SDavid Howells call = list_entry(v, struct rxrpc_call, link); 798c3e34a4SDavid Howells 808d94aa38SDavid Howells rx = rcu_dereference(call->socket); 81df5d8bf7SDavid Howells if (rx) { 82df5d8bf7SDavid Howells local = READ_ONCE(rx->local); 83df5d8bf7SDavid Howells if (local) 8475b54cb5SDavid Howells sprintf(lbuff, "%pISpc", &local->srx.transport); 85df5d8bf7SDavid Howells else 86df5d8bf7SDavid Howells strcpy(lbuff, "no_local"); 87df5d8bf7SDavid Howells } else { 88df5d8bf7SDavid Howells strcpy(lbuff, "no_socket"); 89df5d8bf7SDavid Howells } 908c3e34a4SDavid Howells 91df5d8bf7SDavid Howells peer = call->peer; 92df5d8bf7SDavid Howells if (peer) 9375b54cb5SDavid Howells sprintf(rbuff, "%pISpc", &peer->srx.transport); 94f4e7da8cSDavid Howells else 95f4e7da8cSDavid Howells strcpy(rbuff, "no_connection"); 968c3e34a4SDavid Howells 973e018dafSDavid Howells tx_hard_ack = READ_ONCE(call->tx_hard_ack); 983e018dafSDavid Howells rx_hard_ack = READ_ONCE(call->rx_hard_ack); 998c3e34a4SDavid Howells seq_printf(seq, 10075b54cb5SDavid Howells "UDP %-47.47s %-47.47s %4x %08x %08x %s %3u" 1013e018dafSDavid Howells " %-8.8s %08x %lx %08x %02x %08x %02x\n", 1028c3e34a4SDavid Howells lbuff, 1038c3e34a4SDavid Howells rbuff, 104f4e7da8cSDavid Howells call->service_id, 1058c3e34a4SDavid Howells call->cid, 1068c3e34a4SDavid Howells call->call_id, 107dabe5a79SDavid Howells rxrpc_is_service_call(call) ? "Svc" : "Clt", 1088c3e34a4SDavid Howells atomic_read(&call->usage), 1098c3e34a4SDavid Howells rxrpc_call_states[call->state], 110f5c17aaeSDavid Howells call->abort_code, 1113e018dafSDavid Howells call->user_call_ID, 1123e018dafSDavid Howells tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack, 1133e018dafSDavid Howells rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack); 1148c3e34a4SDavid Howells 1158c3e34a4SDavid Howells return 0; 1168c3e34a4SDavid Howells } 1178c3e34a4SDavid Howells 118c3506372SChristoph Hellwig const struct seq_operations rxrpc_call_seq_ops = { 1198c3e34a4SDavid Howells .start = rxrpc_call_seq_start, 1208c3e34a4SDavid Howells .next = rxrpc_call_seq_next, 1218c3e34a4SDavid Howells .stop = rxrpc_call_seq_stop, 1228c3e34a4SDavid Howells .show = rxrpc_call_seq_show, 1238c3e34a4SDavid Howells }; 1248c3e34a4SDavid Howells 1258c3e34a4SDavid Howells /* 1268c3e34a4SDavid Howells * generate a list of extant virtual connections in /proc/net/rxrpc_conns 1278c3e34a4SDavid Howells */ 1288c3e34a4SDavid Howells static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos) 12988f2a825SDavid Howells __acquires(rxnet->conn_lock) 1308c3e34a4SDavid Howells { 1312baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 1322baec2c3SDavid Howells 1332baec2c3SDavid Howells read_lock(&rxnet->conn_lock); 1342baec2c3SDavid Howells return seq_list_start_head(&rxnet->conn_proc_list, *_pos); 1358c3e34a4SDavid Howells } 1368c3e34a4SDavid Howells 1378c3e34a4SDavid Howells static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, 1388c3e34a4SDavid Howells loff_t *pos) 1398c3e34a4SDavid Howells { 1402baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 1412baec2c3SDavid Howells 1422baec2c3SDavid Howells return seq_list_next(v, &rxnet->conn_proc_list, pos); 1438c3e34a4SDavid Howells } 1448c3e34a4SDavid Howells 1458c3e34a4SDavid Howells static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) 14688f2a825SDavid Howells __releases(rxnet->conn_lock) 1478c3e34a4SDavid Howells { 1482baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 1492baec2c3SDavid Howells 1502baec2c3SDavid Howells read_unlock(&rxnet->conn_lock); 1518c3e34a4SDavid Howells } 1528c3e34a4SDavid Howells 1538c3e34a4SDavid Howells static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) 1548c3e34a4SDavid Howells { 1558c3e34a4SDavid Howells struct rxrpc_connection *conn; 1562baec2c3SDavid Howells struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); 15775b54cb5SDavid Howells char lbuff[50], rbuff[50]; 1588c3e34a4SDavid Howells 1592baec2c3SDavid Howells if (v == &rxnet->conn_proc_list) { 1608c3e34a4SDavid Howells seq_puts(seq, 16175b54cb5SDavid Howells "Proto Local " 16275b54cb5SDavid Howells " Remote " 163a1399f8bSDavid Howells " SvID ConnID End Use State Key " 1648c3e34a4SDavid Howells " Serial ISerial\n" 1658c3e34a4SDavid Howells ); 1668c3e34a4SDavid Howells return 0; 1678c3e34a4SDavid Howells } 1688c3e34a4SDavid Howells 1694d028b2cSDavid Howells conn = list_entry(v, struct rxrpc_connection, proc_link); 17000e90712SDavid Howells if (conn->state == RXRPC_CONN_SERVICE_PREALLOC) { 17100e90712SDavid Howells strcpy(lbuff, "no_local"); 17200e90712SDavid Howells strcpy(rbuff, "no_connection"); 17300e90712SDavid Howells goto print; 17400e90712SDavid Howells } 1758c3e34a4SDavid Howells 17675b54cb5SDavid Howells sprintf(lbuff, "%pISpc", &conn->params.local->srx.transport); 1778c3e34a4SDavid Howells 17875b54cb5SDavid Howells sprintf(rbuff, "%pISpc", &conn->params.peer->srx.transport); 17900e90712SDavid Howells print: 1808c3e34a4SDavid Howells seq_printf(seq, 18175b54cb5SDavid Howells "UDP %-47.47s %-47.47s %4x %08x %s %3u" 1828c3e34a4SDavid Howells " %s %08x %08x %08x\n", 1838c3e34a4SDavid Howells lbuff, 1848c3e34a4SDavid Howells rbuff, 18568d6d1aeSDavid Howells conn->service_id, 18619ffa01cSDavid Howells conn->proto.cid, 18719ffa01cSDavid Howells rxrpc_conn_is_service(conn) ? "Svc" : "Clt", 1888c3e34a4SDavid Howells atomic_read(&conn->usage), 1898c3e34a4SDavid Howells rxrpc_conn_states[conn->state], 19019ffa01cSDavid Howells key_serial(conn->params.key), 1918c3e34a4SDavid Howells atomic_read(&conn->serial), 192563ea7d5SDavid Howells conn->hi_serial); 1938c3e34a4SDavid Howells 1948c3e34a4SDavid Howells return 0; 1958c3e34a4SDavid Howells } 1968c3e34a4SDavid Howells 197c3506372SChristoph Hellwig const struct seq_operations rxrpc_connection_seq_ops = { 1988c3e34a4SDavid Howells .start = rxrpc_connection_seq_start, 1998c3e34a4SDavid Howells .next = rxrpc_connection_seq_next, 2008c3e34a4SDavid Howells .stop = rxrpc_connection_seq_stop, 2018c3e34a4SDavid Howells .show = rxrpc_connection_seq_show, 2028c3e34a4SDavid Howells }; 203