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 */
rxrpc_call_seq_start(struct seq_file * seq,loff_t * _pos)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
rxrpc_call_seq_next(struct seq_file * seq,void * v,loff_t * pos)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
rxrpc_call_seq_stop(struct seq_file * seq,void * v)42 static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)
43 {
44 read_unlock(&rxrpc_call_lock);
45 }
46
rxrpc_call_seq_show(struct seq_file * seq,void * v)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 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
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
rxrpc_call_seq_open(struct inode * inode,struct file * file)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 */
rxrpc_connection_seq_start(struct seq_file * seq,loff_t * _pos)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
rxrpc_connection_seq_next(struct seq_file * seq,void * v,loff_t * pos)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
rxrpc_connection_seq_stop(struct seq_file * seq,void * v)124 static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v)
125 {
126 read_unlock(&rxrpc_connection_lock);
127 }
128
rxrpc_connection_seq_show(struct seq_file * seq,void * v)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 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
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
rxrpc_connection_seq_open(struct inode * inode,struct file * file)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