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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) | |
88f2a825 DH |
32 | __acquires(rcu) |
33 | __acquires(rxnet->call_lock) | |
17926a79 | 34 | { |
2baec2c3 DH |
35 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
36 | ||
8d94aa38 | 37 | rcu_read_lock(); |
2baec2c3 DH |
38 | read_lock(&rxnet->call_lock); |
39 | return seq_list_start_head(&rxnet->calls, *_pos); | |
17926a79 DH |
40 | } |
41 | ||
42 | static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos) | |
43 | { | |
2baec2c3 DH |
44 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
45 | ||
46 | return seq_list_next(v, &rxnet->calls, pos); | |
17926a79 DH |
47 | } |
48 | ||
49 | static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) | |
88f2a825 DH |
50 | __releases(rxnet->call_lock) |
51 | __releases(rcu) | |
17926a79 | 52 | { |
2baec2c3 DH |
53 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
54 | ||
55 | read_unlock(&rxnet->call_lock); | |
8d94aa38 | 56 | rcu_read_unlock(); |
17926a79 DH |
57 | } |
58 | ||
59 | static int rxrpc_call_seq_show(struct seq_file *seq, void *v) | |
60 | { | |
df5d8bf7 DH |
61 | struct rxrpc_local *local; |
62 | struct rxrpc_sock *rx; | |
63 | struct rxrpc_peer *peer; | |
17926a79 | 64 | struct rxrpc_call *call; |
2baec2c3 | 65 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
770b26de | 66 | unsigned long timeout = 0; |
3e018daf | 67 | rxrpc_seq_t tx_hard_ack, rx_hard_ack; |
75b54cb5 | 68 | char lbuff[50], rbuff[50]; |
17926a79 | 69 | |
2baec2c3 | 70 | if (v == &rxnet->calls) { |
17926a79 | 71 | seq_puts(seq, |
75b54cb5 DH |
72 | "Proto Local " |
73 | " Remote " | |
17926a79 | 74 | " SvID ConnID CallID End Use State Abort " |
6b97bd7a | 75 | " UserID TxSeq TW RxSeq RW RxSerial RxTimo\n"); |
17926a79 DH |
76 | return 0; |
77 | } | |
78 | ||
79 | call = list_entry(v, struct rxrpc_call, link); | |
17926a79 | 80 | |
8d94aa38 | 81 | rx = rcu_dereference(call->socket); |
df5d8bf7 DH |
82 | if (rx) { |
83 | local = READ_ONCE(rx->local); | |
84 | if (local) | |
75b54cb5 | 85 | sprintf(lbuff, "%pISpc", &local->srx.transport); |
df5d8bf7 DH |
86 | else |
87 | strcpy(lbuff, "no_local"); | |
88 | } else { | |
89 | strcpy(lbuff, "no_socket"); | |
90 | } | |
17926a79 | 91 | |
df5d8bf7 DH |
92 | peer = call->peer; |
93 | if (peer) | |
75b54cb5 | 94 | sprintf(rbuff, "%pISpc", &peer->srx.transport); |
f4e7da8c DH |
95 | else |
96 | strcpy(rbuff, "no_connection"); | |
17926a79 | 97 | |
887763bb DH |
98 | if (call->state != RXRPC_CALL_SERVER_PREALLOC) { |
99 | timeout = READ_ONCE(call->expect_rx_by); | |
887763bb DH |
100 | timeout -= jiffies; |
101 | } | |
102 | ||
3e018daf DH |
103 | tx_hard_ack = READ_ONCE(call->tx_hard_ack); |
104 | rx_hard_ack = READ_ONCE(call->rx_hard_ack); | |
17926a79 | 105 | seq_printf(seq, |
75b54cb5 | 106 | "UDP %-47.47s %-47.47s %4x %08x %08x %s %3u" |
6b97bd7a | 107 | " %-8.8s %08x %lx %08x %02x %08x %02x %08x %06lx\n", |
17926a79 DH |
108 | lbuff, |
109 | rbuff, | |
f4e7da8c | 110 | call->service_id, |
0d12f8a4 DH |
111 | call->cid, |
112 | call->call_id, | |
dabe5a79 | 113 | rxrpc_is_service_call(call) ? "Svc" : "Clt", |
17926a79 DH |
114 | atomic_read(&call->usage), |
115 | rxrpc_call_states[call->state], | |
f5c17aae | 116 | call->abort_code, |
3e018daf DH |
117 | call->user_call_ID, |
118 | tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack, | |
887763bb | 119 | rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack, |
6b97bd7a | 120 | call->rx_serial, |
887763bb | 121 | timeout); |
17926a79 DH |
122 | |
123 | return 0; | |
124 | } | |
125 | ||
c3506372 | 126 | const struct seq_operations rxrpc_call_seq_ops = { |
17926a79 DH |
127 | .start = rxrpc_call_seq_start, |
128 | .next = rxrpc_call_seq_next, | |
129 | .stop = rxrpc_call_seq_stop, | |
130 | .show = rxrpc_call_seq_show, | |
131 | }; | |
132 | ||
17926a79 DH |
133 | /* |
134 | * generate a list of extant virtual connections in /proc/net/rxrpc_conns | |
135 | */ | |
136 | static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos) | |
88f2a825 | 137 | __acquires(rxnet->conn_lock) |
17926a79 | 138 | { |
2baec2c3 DH |
139 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
140 | ||
141 | read_lock(&rxnet->conn_lock); | |
142 | return seq_list_start_head(&rxnet->conn_proc_list, *_pos); | |
17926a79 DH |
143 | } |
144 | ||
145 | static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v, | |
146 | loff_t *pos) | |
147 | { | |
2baec2c3 DH |
148 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
149 | ||
150 | return seq_list_next(v, &rxnet->conn_proc_list, pos); | |
17926a79 DH |
151 | } |
152 | ||
153 | static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) | |
88f2a825 | 154 | __releases(rxnet->conn_lock) |
17926a79 | 155 | { |
2baec2c3 DH |
156 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
157 | ||
158 | read_unlock(&rxnet->conn_lock); | |
17926a79 DH |
159 | } |
160 | ||
161 | static int rxrpc_connection_seq_show(struct seq_file *seq, void *v) | |
162 | { | |
163 | struct rxrpc_connection *conn; | |
2baec2c3 | 164 | struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq)); |
75b54cb5 | 165 | char lbuff[50], rbuff[50]; |
17926a79 | 166 | |
2baec2c3 | 167 | if (v == &rxnet->conn_proc_list) { |
17926a79 | 168 | seq_puts(seq, |
75b54cb5 DH |
169 | "Proto Local " |
170 | " Remote " | |
a1399f8b | 171 | " SvID ConnID End Use State Key " |
17926a79 DH |
172 | " Serial ISerial\n" |
173 | ); | |
174 | return 0; | |
175 | } | |
176 | ||
4d028b2c | 177 | conn = list_entry(v, struct rxrpc_connection, proc_link); |
00e90712 DH |
178 | if (conn->state == RXRPC_CONN_SERVICE_PREALLOC) { |
179 | strcpy(lbuff, "no_local"); | |
180 | strcpy(rbuff, "no_connection"); | |
181 | goto print; | |
182 | } | |
17926a79 | 183 | |
75b54cb5 | 184 | sprintf(lbuff, "%pISpc", &conn->params.local->srx.transport); |
17926a79 | 185 | |
75b54cb5 | 186 | sprintf(rbuff, "%pISpc", &conn->params.peer->srx.transport); |
00e90712 | 187 | print: |
17926a79 | 188 | seq_printf(seq, |
75b54cb5 | 189 | "UDP %-47.47s %-47.47s %4x %08x %s %3u" |
6b97bd7a | 190 | " %s %08x %08x %08x %08x %08x %08x %08x\n", |
17926a79 DH |
191 | lbuff, |
192 | rbuff, | |
68d6d1ae | 193 | conn->service_id, |
19ffa01c | 194 | conn->proto.cid, |
19ffa01c | 195 | rxrpc_conn_is_service(conn) ? "Svc" : "Clt", |
17926a79 DH |
196 | atomic_read(&conn->usage), |
197 | rxrpc_conn_states[conn->state], | |
19ffa01c | 198 | key_serial(conn->params.key), |
17926a79 | 199 | atomic_read(&conn->serial), |
6b97bd7a DH |
200 | conn->hi_serial, |
201 | conn->channels[0].call_id, | |
202 | conn->channels[1].call_id, | |
203 | conn->channels[2].call_id, | |
204 | conn->channels[3].call_id); | |
17926a79 DH |
205 | |
206 | return 0; | |
207 | } | |
208 | ||
c3506372 | 209 | const struct seq_operations rxrpc_connection_seq_ops = { |
17926a79 DH |
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 | }; |