1 /* /proc/net/ support for AF_RXRPC 2 * 3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 4 * Written by David Howells (dhowells@redhat.com) 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 */ 11 12 #include <linux/module.h> 13 #include <net/sock.h> 14 #include <net/af_rxrpc.h> 15 #include "ar-internal.h" 16 17 static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = { 18 [RXRPC_CONN_UNUSED] = "Unused ", 19 [RXRPC_CONN_CLIENT] = "Client ", 20 [RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ", 21 [RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ", 22 [RXRPC_CONN_SERVICE] = "SvSecure", 23 [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort", 24 [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort", 25 [RXRPC_CONN_NETWORK_ERROR] = "NetError", 26 }; 27 28 /* 29 * generate a list of extant and dead calls in /proc/net/rxrpc_calls 30 */ 31 static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos) 32 { 33 read_lock(&rxrpc_call_lock); 34 return seq_list_start_head(&rxrpc_calls, *_pos); 35 } 36 37 static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) 38 { 39 return seq_list_next(v, &rxrpc_calls, pos); 40 } 41 42 static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) 43 { 44 read_unlock(&rxrpc_call_lock); 45 } 46 47 static int rxrpc_call_seq_show(struct seq_file *seq, void *v) 48 { 49 struct rxrpc_connection *conn; 50 struct rxrpc_call *call; 51 char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; 52 53 if (v == &rxrpc_calls) { 54 seq_puts(seq, 55 "Proto Local Remote " 56 " SvID ConnID CallID End Use State Abort " 57 " UserID\n"); 58 return 0; 59 } 60 61 call = list_entry(v, struct rxrpc_call, link); 62 63 sprintf(lbuff, "%pI4:%u", 64 &call->local->srx.transport.sin.sin_addr, 65 ntohs(call->local->srx.transport.sin.sin_port)); 66 67 conn = call->conn; 68 if (conn) 69 sprintf(rbuff, "%pI4:%u", 70 &conn->params.peer->srx.transport.sin.sin_addr, 71 ntohs(conn->params.peer->srx.transport.sin.sin_port)); 72 else 73 strcpy(rbuff, "no_connection"); 74 75 seq_printf(seq, 76 "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" 77 " %-8.8s %08x %lx\n", 78 lbuff, 79 rbuff, 80 call->service_id, 81 call->cid, 82 call->call_id, 83 call->in_clientflag ? "Svc" : "Clt", 84 atomic_read(&call->usage), 85 rxrpc_call_states[call->state], 86 call->remote_abort ?: call->local_abort, 87 call->user_call_ID); 88 89 return 0; 90 } 91 92 static const struct seq_operations rxrpc_call_seq_ops = { 93 .start = rxrpc_call_seq_start, 94 .next = rxrpc_call_seq_next, 95 .stop = rxrpc_call_seq_stop, 96 .show = rxrpc_call_seq_show, 97 }; 98 99 static int rxrpc_call_seq_open(struct inode *inode, struct file *file) 100 { 101 return seq_open(file, &rxrpc_call_seq_ops); 102 } 103 104 const struct file_operations rxrpc_call_seq_fops = { 105 .owner = THIS_MODULE, 106 .open = rxrpc_call_seq_open, 107 .read = seq_read, 108 .llseek = seq_lseek, 109 .release = seq_release, 110 }; 111 112 /* 113 * generate a list of extant virtual connections in /proc/net/rxrpc_conns 114 */ 115 static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos) 116 { 117 read_lock(&rxrpc_connection_lock); 118 return seq_list_start_head(&rxrpc_connections, *_pos); 119 } 120 121 static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, 122 loff_t *pos) 123 { 124 return seq_list_next(v, &rxrpc_connections, pos); 125 } 126 127 static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) 128 { 129 read_unlock(&rxrpc_connection_lock); 130 } 131 132 static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) 133 { 134 struct rxrpc_connection *conn; 135 char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; 136 137 if (v == &rxrpc_connections) { 138 seq_puts(seq, 139 "Proto Local Remote " 140 " SvID ConnID End Use State Key " 141 " Serial ISerial\n" 142 ); 143 return 0; 144 } 145 146 conn = list_entry(v, struct rxrpc_connection, link); 147 148 sprintf(lbuff, "%pI4:%u", 149 &conn->params.local->srx.transport.sin.sin_addr, 150 ntohs(conn->params.local->srx.transport.sin.sin_port)); 151 152 sprintf(rbuff, "%pI4:%u", 153 &conn->params.peer->srx.transport.sin.sin_addr, 154 ntohs(conn->params.peer->srx.transport.sin.sin_port)); 155 156 seq_printf(seq, 157 "UDP %-22.22s %-22.22s %4x %08x %s %3u" 158 " %s %08x %08x %08x\n", 159 lbuff, 160 rbuff, 161 conn->params.service_id, 162 conn->proto.cid, 163 rxrpc_conn_is_service(conn) ? "Svc" : "Clt", 164 atomic_read(&conn->usage), 165 rxrpc_conn_states[conn->state], 166 key_serial(conn->params.key), 167 atomic_read(&conn->serial), 168 atomic_read(&conn->hi_serial)); 169 170 return 0; 171 } 172 173 static const struct seq_operations rxrpc_connection_seq_ops = { 174 .start = rxrpc_connection_seq_start, 175 .next = rxrpc_connection_seq_next, 176 .stop = rxrpc_connection_seq_stop, 177 .show = rxrpc_connection_seq_show, 178 }; 179 180 181 static int rxrpc_connection_seq_open(struct inode *inode, struct file *file) 182 { 183 return seq_open(file, &rxrpc_connection_seq_ops); 184 } 185 186 const struct file_operations rxrpc_connection_seq_fops = { 187 .owner = THIS_MODULE, 188 .open = rxrpc_connection_seq_open, 189 .read = seq_read, 190 .llseek = seq_lseek, 191 .release = seq_release, 192 }; 193