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17926a79 DH |
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 *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 | ||
17926a79 DH |
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 | struct list_head *_p; | |
34 | loff_t pos = *_pos; | |
35 | ||
36 | read_lock(&rxrpc_call_lock); | |
37 | if (!pos) | |
38 | return SEQ_START_TOKEN; | |
39 | pos--; | |
40 | ||
41 | list_for_each(_p, &rxrpc_calls) | |
42 | if (!pos--) | |
43 | break; | |
44 | ||
45 | return _p != &rxrpc_calls ? _p : NULL; | |
46 | } | |
47 | ||
48 | static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) | |
49 | { | |
50 | struct list_head *_p; | |
51 | ||
52 | (*pos)++; | |
53 | ||
54 | _p = v; | |
55 | _p = (v == SEQ_START_TOKEN) ? rxrpc_calls.next : _p->next; | |
56 | ||
57 | return _p != &rxrpc_calls ? _p : NULL; | |
58 | } | |
59 | ||
60 | static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) | |
61 | { | |
62 | read_unlock(&rxrpc_call_lock); | |
63 | } | |
64 | ||
65 | static int rxrpc_call_seq_show(struct seq_file *seq, void *v) | |
66 | { | |
67 | struct rxrpc_transport *trans; | |
68 | struct rxrpc_call *call; | |
69 | char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; | |
70 | ||
71 | if (v == SEQ_START_TOKEN) { | |
72 | seq_puts(seq, | |
73 | "Proto Local Remote " | |
74 | " SvID ConnID CallID End Use State Abort " | |
75 | " UserID\n"); | |
76 | return 0; | |
77 | } | |
78 | ||
79 | call = list_entry(v, struct rxrpc_call, link); | |
80 | trans = call->conn->trans; | |
81 | ||
82 | sprintf(lbuff, NIPQUAD_FMT":%u", | |
83 | NIPQUAD(trans->local->srx.transport.sin.sin_addr), | |
84 | ntohs(trans->local->srx.transport.sin.sin_port)); | |
85 | ||
86 | sprintf(rbuff, NIPQUAD_FMT":%u", | |
87 | NIPQUAD(trans->peer->srx.transport.sin.sin_addr), | |
88 | ntohs(trans->peer->srx.transport.sin.sin_port)); | |
89 | ||
90 | seq_printf(seq, | |
91 | "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" | |
92 | " %-8.8s %08x %lx\n", | |
93 | lbuff, | |
94 | rbuff, | |
95 | ntohs(call->conn->service_id), | |
96 | ntohl(call->conn->cid), | |
97 | ntohl(call->call_id), | |
98 | call->conn->in_clientflag ? "Svc" : "Clt", | |
99 | atomic_read(&call->usage), | |
100 | rxrpc_call_states[call->state], | |
101 | call->abort_code, | |
102 | call->user_call_ID); | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | static struct seq_operations rxrpc_call_seq_ops = { | |
108 | .start = rxrpc_call_seq_start, | |
109 | .next = rxrpc_call_seq_next, | |
110 | .stop = rxrpc_call_seq_stop, | |
111 | .show = rxrpc_call_seq_show, | |
112 | }; | |
113 | ||
114 | static int rxrpc_call_seq_open(struct inode *inode, struct file *file) | |
115 | { | |
116 | return seq_open(file, &rxrpc_call_seq_ops); | |
117 | } | |
118 | ||
119 | struct file_operations rxrpc_call_seq_fops = { | |
120 | .owner = THIS_MODULE, | |
121 | .open = rxrpc_call_seq_open, | |
122 | .read = seq_read, | |
123 | .llseek = seq_lseek, | |
124 | .release = seq_release_private, | |
125 | }; | |
126 | ||
127 | /* | |
128 | * generate a list of extant virtual connections in /proc/net/rxrpc_conns | |
129 | */ | |
130 | static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos) | |
131 | { | |
132 | struct list_head *_p; | |
133 | loff_t pos = *_pos; | |
134 | ||
135 | read_lock(&rxrpc_connection_lock); | |
136 | if (!pos) | |
137 | return SEQ_START_TOKEN; | |
138 | pos--; | |
139 | ||
140 | list_for_each(_p, &rxrpc_connections) | |
141 | if (!pos--) | |
142 | break; | |
143 | ||
144 | return _p != &rxrpc_connections ? _p : NULL; | |
145 | } | |
146 | ||
147 | static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, | |
148 | loff_t *pos) | |
149 | { | |
150 | struct list_head *_p; | |
151 | ||
152 | (*pos)++; | |
153 | ||
154 | _p = v; | |
155 | _p = (v == SEQ_START_TOKEN) ? rxrpc_connections.next : _p->next; | |
156 | ||
157 | return _p != &rxrpc_connections ? _p : NULL; | |
158 | } | |
159 | ||
160 | static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) | |
161 | { | |
162 | read_unlock(&rxrpc_connection_lock); | |
163 | } | |
164 | ||
165 | static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) | |
166 | { | |
167 | struct rxrpc_connection *conn; | |
168 | struct rxrpc_transport *trans; | |
169 | char lbuff[4 + 4 + 4 + 4 + 5 + 1], rbuff[4 + 4 + 4 + 4 + 5 + 1]; | |
170 | ||
171 | if (v == SEQ_START_TOKEN) { | |
172 | seq_puts(seq, | |
173 | "Proto Local Remote " | |
174 | " SvID ConnID Calls End Use State Key " | |
175 | " Serial ISerial\n" | |
176 | ); | |
177 | return 0; | |
178 | } | |
179 | ||
180 | conn = list_entry(v, struct rxrpc_connection, link); | |
181 | trans = conn->trans; | |
182 | ||
183 | sprintf(lbuff, NIPQUAD_FMT":%u", | |
184 | NIPQUAD(trans->local->srx.transport.sin.sin_addr), | |
185 | ntohs(trans->local->srx.transport.sin.sin_port)); | |
186 | ||
187 | sprintf(rbuff, NIPQUAD_FMT":%u", | |
188 | NIPQUAD(trans->peer->srx.transport.sin.sin_addr), | |
189 | ntohs(trans->peer->srx.transport.sin.sin_port)); | |
190 | ||
191 | seq_printf(seq, | |
192 | "UDP %-22.22s %-22.22s %4x %08x %08x %s %3u" | |
193 | " %s %08x %08x %08x\n", | |
194 | lbuff, | |
195 | rbuff, | |
196 | ntohs(conn->service_id), | |
197 | ntohl(conn->cid), | |
198 | conn->call_counter, | |
199 | conn->in_clientflag ? "Svc" : "Clt", | |
200 | atomic_read(&conn->usage), | |
201 | rxrpc_conn_states[conn->state], | |
202 | key_serial(conn->key), | |
203 | atomic_read(&conn->serial), | |
204 | atomic_read(&conn->hi_serial)); | |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
209 | static struct seq_operations rxrpc_connection_seq_ops = { | |
210 | .start = rxrpc_connection_seq_start, | |
211 | .next = rxrpc_connection_seq_next, | |
212 | .stop = rxrpc_connection_seq_stop, | |
213 | .show = rxrpc_connection_seq_show, | |
214 | }; | |
215 | ||
216 | ||
217 | static int rxrpc_connection_seq_open(struct inode *inode, struct file *file) | |
218 | { | |
219 | return seq_open(file, &rxrpc_connection_seq_ops); | |
220 | } | |
221 | ||
222 | struct file_operations rxrpc_connection_seq_fops = { | |
223 | .owner = THIS_MODULE, | |
224 | .open = rxrpc_connection_seq_open, | |
225 | .read = seq_read, | |
226 | .llseek = seq_lseek, | |
227 | .release = seq_release_private, | |
228 | }; |