blob: 96001f0c64fc16a8f4cd32512bb31adab912ec5f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * X.25 Packet Layer release 002
3 *
4 * This is ALPHA test software. This code may break your machine,
5 * randomly fail to work with new releases, misbehave and/or generally
YOSHIFUJI Hideakif8e1d2012007-02-09 23:25:27 +09006 * screw up. It might even work.
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 *
8 * This code REQUIRES 2.4 with seq_file support
9 *
10 * This module:
11 * This module is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
15 *
16 * History
17 * 2002/10/06 Arnaldo Carvalho de Melo seq_file support
18 */
19
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#include <linux/init.h>
21#include <linux/proc_fs.h>
22#include <linux/seq_file.h>
23#include <net/sock.h>
24#include <net/x25.h>
25
26#ifdef CONFIG_PROC_FS
27static __inline__ struct x25_route *x25_get_route_idx(loff_t pos)
28{
29 struct list_head *route_entry;
30 struct x25_route *rt = NULL;
31
32 list_for_each(route_entry, &x25_route_list) {
33 rt = list_entry(route_entry, struct x25_route, node);
34 if (!pos--)
35 goto found;
36 }
37 rt = NULL;
38found:
39 return rt;
40}
41
42static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos)
43{
44 loff_t l = *pos;
45
46 read_lock_bh(&x25_route_list_lock);
47 return l ? x25_get_route_idx(--l) : SEQ_START_TOKEN;
48}
49
50static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
51{
52 struct x25_route *rt;
53
54 ++*pos;
55 if (v == SEQ_START_TOKEN) {
56 rt = NULL;
57 if (!list_empty(&x25_route_list))
58 rt = list_entry(x25_route_list.next,
59 struct x25_route, node);
60 goto out;
61 }
62 rt = v;
63 if (rt->node.next != &x25_route_list)
64 rt = list_entry(rt->node.next, struct x25_route, node);
YOSHIFUJI Hideakif8e1d2012007-02-09 23:25:27 +090065 else
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 rt = NULL;
67out:
68 return rt;
69}
70
71static void x25_seq_route_stop(struct seq_file *seq, void *v)
72{
73 read_unlock_bh(&x25_route_list_lock);
74}
75
76static int x25_seq_route_show(struct seq_file *seq, void *v)
77{
78 struct x25_route *rt;
79
80 if (v == SEQ_START_TOKEN) {
81 seq_puts(seq, "Address Digits Device\n");
82 goto out;
83 }
84
85 rt = v;
86 seq_printf(seq, "%-15s %-6d %-5s\n",
87 rt->address.x25_addr, rt->sigdigits,
88 rt->dev ? rt->dev->name : "???");
89out:
90 return 0;
YOSHIFUJI Hideakif8e1d2012007-02-09 23:25:27 +090091}
Linus Torvalds1da177e2005-04-16 15:20:36 -070092
93static __inline__ struct sock *x25_get_socket_idx(loff_t pos)
94{
95 struct sock *s;
96 struct hlist_node *node;
97
98 sk_for_each(s, node, &x25_list)
99 if (!pos--)
100 goto found;
101 s = NULL;
102found:
103 return s;
104}
105
106static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
107{
108 loff_t l = *pos;
109
110 read_lock_bh(&x25_list_lock);
111 return l ? x25_get_socket_idx(--l) : SEQ_START_TOKEN;
112}
113
114static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
115{
116 struct sock *s;
117
118 ++*pos;
119 if (v == SEQ_START_TOKEN) {
120 s = sk_head(&x25_list);
121 goto out;
122 }
123 s = sk_next(v);
124out:
125 return s;
126}
127
128static void x25_seq_socket_stop(struct seq_file *seq, void *v)
129{
130 read_unlock_bh(&x25_list_lock);
131}
132
133static int x25_seq_socket_show(struct seq_file *seq, void *v)
134{
135 struct sock *s;
136 struct x25_sock *x25;
137 struct net_device *dev;
138 const char *devname;
139
140 if (v == SEQ_START_TOKEN) {
141 seq_printf(seq, "dest_addr src_addr dev lci st vs vr "
142 "va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n");
143 goto out;
144 }
145
146 s = v;
147 x25 = x25_sk(s);
148
149 if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
150 devname = "???";
151 else
152 devname = x25->neighbour->dev->name;
153
154 seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu "
155 "%3lu %3lu %3lu %5d %5d %ld\n",
156 !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr,
157 !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr,
158 devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
159 x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ,
160 x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
161 atomic_read(&s->sk_wmem_alloc),
162 atomic_read(&s->sk_rmem_alloc),
163 s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
164out:
165 return 0;
YOSHIFUJI Hideakif8e1d2012007-02-09 23:25:27 +0900166}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800168static __inline__ struct x25_forward *x25_get_forward_idx(loff_t pos)
169{
170 struct x25_forward *f;
171 struct list_head *entry;
172
173 list_for_each(entry, &x25_forward_list) {
174 f = list_entry(entry, struct x25_forward, node);
175 if (!pos--)
176 goto found;
177 }
178
179 f = NULL;
180found:
181 return f;
182}
183
184static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos)
185{
186 loff_t l = *pos;
187
188 read_lock_bh(&x25_forward_list_lock);
189 return l ? x25_get_forward_idx(--l) : SEQ_START_TOKEN;
190}
191
192static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos)
193{
194 struct x25_forward *f;
195
196 ++*pos;
197 if (v == SEQ_START_TOKEN) {
198 f = NULL;
199 if (!list_empty(&x25_forward_list))
200 f = list_entry(x25_forward_list.next,
201 struct x25_forward, node);
202 goto out;
203 }
204 f = v;
205 if (f->node.next != &x25_forward_list)
206 f = list_entry(f->node.next, struct x25_forward, node);
207 else
208 f = NULL;
209out:
210 return f;
211
212}
213
214static void x25_seq_forward_stop(struct seq_file *seq, void *v)
215{
216 read_unlock_bh(&x25_forward_list_lock);
217}
218
219static int x25_seq_forward_show(struct seq_file *seq, void *v)
220{
221 struct x25_forward *f;
222
223 if (v == SEQ_START_TOKEN) {
224 seq_printf(seq, "lci dev1 dev2\n");
225 goto out;
226 }
227
228 f = v;
229
230 seq_printf(seq, "%d %-10s %-10s\n",
231 f->lci, f->dev1->name, f->dev2->name);
232
233out:
234 return 0;
235}
236
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237static struct seq_operations x25_seq_route_ops = {
238 .start = x25_seq_route_start,
239 .next = x25_seq_route_next,
240 .stop = x25_seq_route_stop,
241 .show = x25_seq_route_show,
242};
243
244static struct seq_operations x25_seq_socket_ops = {
245 .start = x25_seq_socket_start,
246 .next = x25_seq_socket_next,
247 .stop = x25_seq_socket_stop,
248 .show = x25_seq_socket_show,
249};
250
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800251static struct seq_operations x25_seq_forward_ops = {
252 .start = x25_seq_forward_start,
253 .next = x25_seq_forward_next,
254 .stop = x25_seq_forward_stop,
255 .show = x25_seq_forward_show,
256};
257
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258static int x25_seq_socket_open(struct inode *inode, struct file *file)
259{
260 return seq_open(file, &x25_seq_socket_ops);
261}
262
263static int x25_seq_route_open(struct inode *inode, struct file *file)
264{
265 return seq_open(file, &x25_seq_route_ops);
266}
267
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800268static int x25_seq_forward_open(struct inode *inode, struct file *file)
269{
270 return seq_open(file, &x25_seq_forward_ops);
271}
272
Arjan van de Venda7071d2007-02-12 00:55:36 -0800273static const struct file_operations x25_seq_socket_fops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700274 .owner = THIS_MODULE,
275 .open = x25_seq_socket_open,
276 .read = seq_read,
277 .llseek = seq_lseek,
278 .release = seq_release,
279};
280
Arjan van de Venda7071d2007-02-12 00:55:36 -0800281static const struct file_operations x25_seq_route_fops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 .owner = THIS_MODULE,
283 .open = x25_seq_route_open,
284 .read = seq_read,
285 .llseek = seq_lseek,
286 .release = seq_release,
287};
288
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800289static struct file_operations x25_seq_forward_fops = {
290 .owner = THIS_MODULE,
291 .open = x25_seq_forward_open,
292 .read = seq_read,
293 .llseek = seq_lseek,
294 .release = seq_release,
295};
296
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297static struct proc_dir_entry *x25_proc_dir;
298
299int __init x25_proc_init(void)
300{
301 struct proc_dir_entry *p;
302 int rc = -ENOMEM;
303
304 x25_proc_dir = proc_mkdir("x25", proc_net);
305 if (!x25_proc_dir)
306 goto out;
307
308 p = create_proc_entry("route", S_IRUGO, x25_proc_dir);
309 if (!p)
310 goto out_route;
311 p->proc_fops = &x25_seq_route_fops;
312
313 p = create_proc_entry("socket", S_IRUGO, x25_proc_dir);
314 if (!p)
315 goto out_socket;
316 p->proc_fops = &x25_seq_socket_fops;
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800317
318 p = create_proc_entry("forward", S_IRUGO, x25_proc_dir);
319 if (!p)
320 goto out_forward;
321 p->proc_fops = &x25_seq_forward_fops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 rc = 0;
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800323
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324out:
325 return rc;
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800326out_forward:
327 remove_proc_entry("socket", x25_proc_dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328out_socket:
329 remove_proc_entry("route", x25_proc_dir);
330out_route:
331 remove_proc_entry("x25", proc_net);
332 goto out;
333}
334
335void __exit x25_proc_exit(void)
336{
Andrew Hendryc9c2e9d2007-02-08 13:35:18 -0800337 remove_proc_entry("forward", x25_proc_dir);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 remove_proc_entry("route", x25_proc_dir);
339 remove_proc_entry("socket", x25_proc_dir);
340 remove_proc_entry("x25", proc_net);
341}
342
343#else /* CONFIG_PROC_FS */
344
345int __init x25_proc_init(void)
346{
347 return 0;
348}
349
350void __exit x25_proc_exit(void)
351{
352}
353#endif /* CONFIG_PROC_FS */