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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 | ||
bba304db DH |
17 | static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = { |
18 | [RXRPC_CONN_UNUSED] = "Unused ", | |
19 | [RXRPC_CONN_CLIENT] = "Client ", | |
00e90712 | 20 | [RXRPC_CONN_SERVICE_PREALLOC] = "SvPrealc", |
bba304db DH |
21 | [RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ", |
22 | [RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ", | |
23 | [RXRPC_CONN_SERVICE] = "SvSecure", | |
24 | [RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort", | |
25 | [RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort", | |
17926a79 DH |
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 | { | |
8d94aa38 | 33 | rcu_read_lock(); |
17926a79 | 34 | read_lock(&rxrpc_call_lock); |
60f0438a | 35 | return seq_list_start_head(&rxrpc_calls, *_pos); |
17926a79 DH |
36 | } |
37 | ||
38 | static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) | |
39 | { | |
60f0438a | 40 | return seq_list_next(v, &rxrpc_calls, pos); |
17926a79 DH |
41 | } |
42 | ||
43 | static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) | |
44 | { | |
45 | read_unlock(&rxrpc_call_lock); | |
8d94aa38 | 46 | rcu_read_unlock(); |
17926a79 DH |
47 | } |
48 | ||
49 | static int rxrpc_call_seq_show(struct seq_file *seq, void *v) | |
50 | { | |
df5d8bf7 DH |
51 | struct rxrpc_local *local; |
52 | struct rxrpc_sock *rx; | |
53 | struct rxrpc_peer *peer; | |
17926a79 | 54 | struct rxrpc_call *call; |
3e018daf | 55 | rxrpc_seq_t tx_hard_ack, rx_hard_ack; |
75b54cb5 | 56 | char lbuff[50], rbuff[50]; |
17926a79 | 57 | |
60f0438a | 58 | if (v == &rxrpc_calls) { |
17926a79 | 59 | seq_puts(seq, |
75b54cb5 DH |
60 | "Proto Local " |
61 | " Remote " | |
17926a79 DH |
62 | " SvID ConnID CallID End Use State Abort " |
63 | " UserID\n"); | |
64 | return 0; | |
65 | } | |
66 | ||
67 | call = list_entry(v, struct rxrpc_call, link); | |
17926a79 | 68 | |
8d94aa38 | 69 | rx = rcu_dereference(call->socket); |
df5d8bf7 DH |
70 | if (rx) { |
71 | local = READ_ONCE(rx->local); | |
72 | if (local) | |
75b54cb5 | 73 | sprintf(lbuff, "%pISpc", &local->srx.transport); |
df5d8bf7 DH |
74 | else |
75 | strcpy(lbuff, "no_local"); | |
76 | } else { | |
77 | strcpy(lbuff, "no_socket"); | |
78 | } | |
17926a79 | 79 | |
df5d8bf7 DH |
80 | peer = call->peer; |
81 | if (peer) | |
75b54cb5 | 82 | sprintf(rbuff, "%pISpc", &peer->srx.transport); |
f4e7da8c DH |
83 | else |
84 | strcpy(rbuff, "no_connection"); | |
17926a79 | 85 | |
3e018daf DH |
86 | tx_hard_ack = READ_ONCE(call->tx_hard_ack); |
87 | rx_hard_ack = READ_ONCE(call->rx_hard_ack); | |
17926a79 | 88 | seq_printf(seq, |
75b54cb5 | 89 | "UDP %-47.47s %-47.47s %4x %08x %08x %s %3u" |
3e018daf | 90 | " %-8.8s %08x %lx %08x %02x %08x %02x\n", |
17926a79 DH |
91 | lbuff, |
92 | rbuff, | |
f4e7da8c | 93 | call->service_id, |
0d12f8a4 DH |
94 | call->cid, |
95 | call->call_id, | |
dabe5a79 | 96 | rxrpc_is_service_call(call) ? "Svc" : "Clt", |
17926a79 DH |
97 | atomic_read(&call->usage), |
98 | rxrpc_call_states[call->state], | |
f5c17aae | 99 | call->abort_code, |
3e018daf DH |
100 | call->user_call_ID, |
101 | tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack, | |
102 | rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack); | |
17926a79 DH |
103 | |
104 | return 0; | |
105 | } | |
106 | ||
56b3d975 | 107 | static const struct seq_operations rxrpc_call_seq_ops = { |
17926a79 DH |
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 | ||
036c2e27 | 119 | const struct file_operations rxrpc_call_seq_fops = { |
17926a79 DH |
120 | .owner = THIS_MODULE, |
121 | .open = rxrpc_call_seq_open, | |
122 | .read = seq_read, | |
123 | .llseek = seq_lseek, | |
665bba10 | 124 | .release = seq_release, |
17926a79 DH |
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 | { | |
17926a79 | 132 | read_lock(&rxrpc_connection_lock); |
4d028b2c | 133 | return seq_list_start_head(&rxrpc_connection_proc_list, *_pos); |
17926a79 DH |
134 | } |
135 | ||
136 | static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, | |
137 | loff_t *pos) | |
138 | { | |
4d028b2c | 139 | return seq_list_next(v, &rxrpc_connection_proc_list, pos); |
17926a79 DH |
140 | } |
141 | ||
142 | static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) | |
143 | { | |
144 | read_unlock(&rxrpc_connection_lock); | |
145 | } | |
146 | ||
147 | static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) | |
148 | { | |
149 | struct rxrpc_connection *conn; | |
75b54cb5 | 150 | char lbuff[50], rbuff[50]; |
17926a79 | 151 | |
4d028b2c | 152 | if (v == &rxrpc_connection_proc_list) { |
17926a79 | 153 | seq_puts(seq, |
75b54cb5 DH |
154 | "Proto Local " |
155 | " Remote " | |
a1399f8b | 156 | " SvID ConnID End Use State Key " |
17926a79 DH |
157 | " Serial ISerial\n" |
158 | ); | |
159 | return 0; | |
160 | } | |
161 | ||
4d028b2c | 162 | conn = list_entry(v, struct rxrpc_connection, proc_link); |
00e90712 DH |
163 | if (conn->state == RXRPC_CONN_SERVICE_PREALLOC) { |
164 | strcpy(lbuff, "no_local"); | |
165 | strcpy(rbuff, "no_connection"); | |
166 | goto print; | |
167 | } | |
17926a79 | 168 | |
75b54cb5 | 169 | sprintf(lbuff, "%pISpc", &conn->params.local->srx.transport); |
17926a79 | 170 | |
75b54cb5 | 171 | sprintf(rbuff, "%pISpc", &conn->params.peer->srx.transport); |
00e90712 | 172 | print: |
17926a79 | 173 | seq_printf(seq, |
75b54cb5 | 174 | "UDP %-47.47s %-47.47s %4x %08x %s %3u" |
17926a79 DH |
175 | " %s %08x %08x %08x\n", |
176 | lbuff, | |
177 | rbuff, | |
19ffa01c DH |
178 | conn->params.service_id, |
179 | conn->proto.cid, | |
19ffa01c | 180 | rxrpc_conn_is_service(conn) ? "Svc" : "Clt", |
17926a79 DH |
181 | atomic_read(&conn->usage), |
182 | rxrpc_conn_states[conn->state], | |
19ffa01c | 183 | key_serial(conn->params.key), |
17926a79 | 184 | atomic_read(&conn->serial), |
563ea7d5 | 185 | conn->hi_serial); |
17926a79 DH |
186 | |
187 | return 0; | |
188 | } | |
189 | ||
56b3d975 | 190 | static const struct seq_operations rxrpc_connection_seq_ops = { |
17926a79 DH |
191 | .start = rxrpc_connection_seq_start, |
192 | .next = rxrpc_connection_seq_next, | |
193 | .stop = rxrpc_connection_seq_stop, | |
194 | .show = rxrpc_connection_seq_show, | |
195 | }; | |
196 | ||
197 | ||
198 | static int rxrpc_connection_seq_open(struct inode *inode, struct file *file) | |
199 | { | |
200 | return seq_open(file, &rxrpc_connection_seq_ops); | |
201 | } | |
202 | ||
036c2e27 | 203 | const struct file_operations rxrpc_connection_seq_fops = { |
17926a79 DH |
204 | .owner = THIS_MODULE, |
205 | .open = rxrpc_connection_seq_open, | |
206 | .read = seq_read, | |
207 | .llseek = seq_lseek, | |
665bba10 | 208 | .release = seq_release, |
17926a79 | 209 | }; |