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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 | */ |
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 | |
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 | |
42 | static void rxrpc_call_seq_stop(struct seq_file *seq, void *v) |
43 | { |
44 | read_unlock(&rxrpc_call_lock); |
45 | } |
46 | |
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 | |
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 | */ |
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 | |
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 | |
124 | static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v) |
125 | { |
126 | read_unlock(&rxrpc_connection_lock); |
127 | } |
128 | |
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 | |
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 |
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