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 17static 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 */ 31static 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 37static 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 42static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) 43{ 44 read_unlock(&rxrpc_call_lock); 45} 46 47static 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 ntohs(call->conn->service_id), 78 ntohl(call->conn->cid), 79 ntohl(call->call_id), 80 call->conn->in_clientflag ? "Svc" : "Clt", 81 atomic_read(&call->usage), 82 rxrpc_call_states[call->state], 83 call->abort_code, 84 call->user_call_ID); 85 86 return 0; 87} 88 89static 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 96static int rxrpc_call_seq_open(struct inode *inode, struct file *file) 97{ 98 return seq_open(file, &rxrpc_call_seq_ops); 99} 100 101const 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 */ 112static 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 118static 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 124static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) 125{ 126 read_unlock(&rxrpc_connection_lock); 127} 128 129static 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 ntohs(conn->service_id), 161 ntohl(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 173static 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 181static int rxrpc_connection_seq_open(struct inode *inode, struct file *file) 182{ 183 return seq_open(file, &rxrpc_connection_seq_ops); 184} 185 186const 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