1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/* /proc/net/ support for AF_RXRPC
*
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/module.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include "ar-internal.h"
static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = {
[RXRPC_CONN_UNUSED] = "Unused ",
[RXRPC_CONN_CLIENT] = "Client ",
[RXRPC_CONN_SERVICE_PREALLOC] = "SvPrealc",
[RXRPC_CONN_SERVICE_UNSECURED] = "SvUnsec ",
[RXRPC_CONN_SERVICE_CHALLENGING] = "SvChall ",
[RXRPC_CONN_SERVICE] = "SvSecure",
[RXRPC_CONN_REMOTELY_ABORTED] = "RmtAbort",
[RXRPC_CONN_LOCALLY_ABORTED] = "LocAbort",
};
/*
* generate a list of extant and dead calls in /proc/net/rxrpc_calls
*/
static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)
{
rcu_read_lock();
read_lock(&rxrpc_call_lock);
return seq_list_start_head(&rxrpc_calls, *_pos);
}
static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
return seq_list_next(v, &rxrpc_calls, pos);
}
static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)
{
read_unlock(&rxrpc_call_lock);
rcu_read_unlock();
}
static int rxrpc_call_seq_show(struct seq_file *seq, void *v)
{
struct rxrpc_local *local;
struct rxrpc_sock *rx;
struct rxrpc_peer *peer;
struct rxrpc_call *call;
rxrpc_seq_t tx_hard_ack, rx_hard_ack;
char lbuff[50], rbuff[50];
if (v == &rxrpc_calls) {
seq_puts(seq,
"Proto Local "
" Remote "
" SvID ConnID CallID End Use State Abort "
" UserID\n");
return 0;
}
call = list_entry(v, struct rxrpc_call, link);
rx = rcu_dereference(call->socket);
if (rx) {
local = READ_ONCE(rx->local);
if (local)
sprintf(lbuff, "%pISpc", &local->srx.transport);
else
strcpy(lbuff, "no_local");
} else {
strcpy(lbuff, "no_socket");
}
peer = call->peer;
if (peer)
sprintf(rbuff, "%pISpc", &peer->srx.transport);
else
strcpy(rbuff, "no_connection");
tx_hard_ack = READ_ONCE(call->tx_hard_ack);
rx_hard_ack = READ_ONCE(call->rx_hard_ack);
seq_printf(seq,
"UDP %-47.47s %-47.47s %4x %08x %08x %s %3u"
" %-8.8s %08x %lx %08x %02x %08x %02x\n",
lbuff,
rbuff,
call->service_id,
call->cid,
call->call_id,
rxrpc_is_service_call(call) ? "Svc" : "Clt",
atomic_read(&call->usage),
rxrpc_call_states[call->state],
call->abort_code,
call->user_call_ID,
tx_hard_ack, READ_ONCE(call->tx_top) - tx_hard_ack,
rx_hard_ack, READ_ONCE(call->rx_top) - rx_hard_ack);
return 0;
}
static const struct seq_operations rxrpc_call_seq_ops = {
.start = rxrpc_call_seq_start,
.next = rxrpc_call_seq_next,
.stop = rxrpc_call_seq_stop,
.show = rxrpc_call_seq_show,
};
static int rxrpc_call_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &rxrpc_call_seq_ops);
}
const struct file_operations rxrpc_call_seq_fops = {
.owner = THIS_MODULE,
.open = rxrpc_call_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
/*
* generate a list of extant virtual connections in /proc/net/rxrpc_conns
*/
static void *rxrpc_connection_seq_start(struct seq_file *seq, loff_t *_pos)
{
read_lock(&rxrpc_connection_lock);
return seq_list_start_head(&rxrpc_connection_proc_list, *_pos);
}
static void *rxrpc_connection_seq_next(struct seq_file *seq, void *v,
loff_t *pos)
{
return seq_list_next(v, &rxrpc_connection_proc_list, pos);
}
static void rxrpc_connection_seq_stop(struct seq_file *seq, void *v)
{
read_unlock(&rxrpc_connection_lock);
}
static int rxrpc_connection_seq_show(struct seq_file *seq, void *v)
{
struct rxrpc_connection *conn;
char lbuff[50], rbuff[50];
if (v == &rxrpc_connection_proc_list) {
seq_puts(seq,
"Proto Local "
" Remote "
" SvID ConnID End Use State Key "
" Serial ISerial\n"
);
return 0;
}
conn = list_entry(v, struct rxrpc_connection, proc_link);
if (conn->state == RXRPC_CONN_SERVICE_PREALLOC) {
strcpy(lbuff, "no_local");
strcpy(rbuff, "no_connection");
goto print;
}
sprintf(lbuff, "%pISpc", &conn->params.local->srx.transport);
sprintf(rbuff, "%pISpc", &conn->params.peer->srx.transport);
print:
seq_printf(seq,
"UDP %-47.47s %-47.47s %4x %08x %s %3u"
" %s %08x %08x %08x\n",
lbuff,
rbuff,
conn->params.service_id,
conn->proto.cid,
rxrpc_conn_is_service(conn) ? "Svc" : "Clt",
atomic_read(&conn->usage),
rxrpc_conn_states[conn->state],
key_serial(conn->params.key),
atomic_read(&conn->serial),
conn->hi_serial);
return 0;
}
static const struct seq_operations rxrpc_connection_seq_ops = {
.start = rxrpc_connection_seq_start,
.next = rxrpc_connection_seq_next,
.stop = rxrpc_connection_seq_stop,
.show = rxrpc_connection_seq_show,
};
static int rxrpc_connection_seq_open(struct inode *inode, struct file *file)
{
return seq_open(file, &rxrpc_connection_seq_ops);
}
const struct file_operations rxrpc_connection_seq_fops = {
.owner = THIS_MODULE,
.open = rxrpc_connection_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
|
