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[] = { 18 [RXRPC_CONN_UNUSED] = "Unused ", 19 [RXRPC_CONN_CLIENT] = "Client ", 20 [RXRPC_CONN_SERVER_UNSECURED] = "SvUnsec ", 21 [RXRPC_CONN_SERVER_CHALLENGING] = "SvChall ", 22 [RXRPC_CONN_SERVER] = "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_transport *trans; 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 trans = call->conn->trans; 63 64 sprintf(lbuff, "%pI4:%u", 65 &trans->local->srx.transport.sin.sin_addr, 66 ntohs(trans->local->srx.transport.sin.sin_port)); 67 68 sprintf(rbuff, "%pI4:%u", 69 &trans->peer->srx.transport.sin.sin_addr, 70 ntohs(trans->peer->srx.transport.sin.sin_port)); 71 72 seq_printf(seq, 73 "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" 74 " %-8.8s %08x %lx\n", 75 lbuff, 76 rbuff, 77 call->conn->service_id, 78 call->cid, 79 call->call_id, 80 call->conn->in_clientflag ? "Svc" : "Clt", 81 atomic_read(&call->usage), 82 rxrpc_call_states[call->state], 83 call->remote_abort ?: call->local_abort, 84 call->user_call_ID); 85 86 return 0; 87 } 88 89 static const struct seq_operations rxrpc_call_seq_ops = { 90 .start = rxrpc_call_seq_start, 91 .next = rxrpc_call_seq_next, 92 .stop = rxrpc_call_seq_stop, 93 .show = rxrpc_call_seq_show, 94 }; 95 96 static int rxrpc_call_seq_open(struct inode *inode, struct file *file) 97 { 98 return seq_open(file, &rxrpc_call_seq_ops); 99 } 100 101 const struct file_operations rxrpc_call_seq_fops = { 102 .owner = THIS_MODULE, 103 .open = rxrpc_call_seq_open, 104 .read = seq_read, 105 .llseek = seq_lseek, 106 .release = seq_release, 107 }; 108 109 /* 110 * generate a list of extant virtual connections in /proc/net/rxrpc_conns 111 */ 112 static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos) 113 { 114 read_lock(&rxrpc_connection_lock); 115 return seq_list_start_head(&rxrpc_connections, *_pos); 116 } 117 118 static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, 119 loff_t *pos) 120 { 121 return seq_list_next(v, &rxrpc_connections, pos); 122 } 123 124 static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) 125 { 126 read_unlock(&rxrpc_connection_lock); 127 } 128 129 static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) 130 { 131 struct rxrpc_connection *conn; 132 struct rxrpc_transport *trans; 133 char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; 134 135 if (v == &rxrpc_connections) { 136 seq_puts(seq, 137 "Proto Local Remote " 138 " SvID ConnID Calls End Use State Key " 139 " Serial ISerial\n" 140 ); 141 return 0; 142 } 143 144 conn = list_entry(v, struct rxrpc_connection, link); 145 trans = conn->trans; 146 147 sprintf(lbuff, "%pI4:%u", 148 &trans->local->srx.transport.sin.sin_addr, 149 ntohs(trans->local->srx.transport.sin.sin_port)); 150 151 sprintf(rbuff, "%pI4:%u", 152 &trans->peer->srx.transport.sin.sin_addr, 153 ntohs(trans->peer->srx.transport.sin.sin_port)); 154 155 seq_printf(seq, 156 "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" 157 " %s %08x %08x %08x\n", 158 lbuff, 159 rbuff, 160 conn->service_id, 161 conn->cid, 162 conn->call_counter, 163 conn->in_clientflag ? "Svc" : "Clt", 164 atomic_read(&conn->usage), 165 rxrpc_conn_states[conn->state], 166 key_serial(conn->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