2 * X.25 Packet Layer release 002
4 * This is ALPHA test software. This code may break your machine,
5 * randomly fail to work with new releases, misbehave and/or generally
6 * screw up. It might even work.
8 * This code REQUIRES 2.4 with seq_file support
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.
17 * 2002/10/06 Arnaldo Carvalho de Melo seq_file support
20 #include <linux/init.h>
21 #include <linux/proc_fs.h>
22 #include <linux/seq_file.h>
23 #include <net/net_namespace.h>
28 static __inline__ struct x25_route *x25_get_route_idx(loff_t pos)
30 struct list_head *route_entry;
31 struct x25_route *rt = NULL;
33 list_for_each(route_entry, &x25_route_list) {
34 rt = list_entry(route_entry, struct x25_route, node);
43 static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos)
47 read_lock_bh(&x25_route_list_lock);
48 return l ? x25_get_route_idx(--l) : SEQ_START_TOKEN;
51 static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
56 if (v == SEQ_START_TOKEN) {
58 if (!list_empty(&x25_route_list))
59 rt = list_entry(x25_route_list.next,
60 struct x25_route, node);
64 if (rt->node.next != &x25_route_list)
65 rt = list_entry(rt->node.next, struct x25_route, node);
72 static void x25_seq_route_stop(struct seq_file *seq, void *v)
74 read_unlock_bh(&x25_route_list_lock);
77 static int x25_seq_route_show(struct seq_file *seq, void *v)
81 if (v == SEQ_START_TOKEN) {
82 seq_puts(seq, "Address Digits Device\n");
87 seq_printf(seq, "%-15s %-6d %-5s\n",
88 rt->address.x25_addr, rt->sigdigits,
89 rt->dev ? rt->dev->name : "???");
94 static __inline__ struct sock *x25_get_socket_idx(loff_t pos)
97 struct hlist_node *node;
99 sk_for_each(s, node, &x25_list)
107 static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
111 read_lock_bh(&x25_list_lock);
112 return l ? x25_get_socket_idx(--l) : SEQ_START_TOKEN;
115 static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
120 if (v == SEQ_START_TOKEN) {
121 s = sk_head(&x25_list);
129 static void x25_seq_socket_stop(struct seq_file *seq, void *v)
131 read_unlock_bh(&x25_list_lock);
134 static int x25_seq_socket_show(struct seq_file *seq, void *v)
137 struct x25_sock *x25;
138 struct net_device *dev;
141 if (v == SEQ_START_TOKEN) {
142 seq_printf(seq, "dest_addr src_addr dev lci st vs vr "
143 "va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n");
150 if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
153 devname = x25->neighbour->dev->name;
155 seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu "
156 "%3lu %3lu %3lu %5d %5d %ld\n",
157 !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr,
158 !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr,
159 devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr,
160 x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ,
161 x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ,
162 atomic_read(&s->sk_wmem_alloc),
163 atomic_read(&s->sk_rmem_alloc),
164 s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L);
169 static __inline__ struct x25_forward *x25_get_forward_idx(loff_t pos)
171 struct x25_forward *f;
172 struct list_head *entry;
174 list_for_each(entry, &x25_forward_list) {
175 f = list_entry(entry, struct x25_forward, node);
185 static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos)
189 read_lock_bh(&x25_forward_list_lock);
190 return l ? x25_get_forward_idx(--l) : SEQ_START_TOKEN;
193 static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos)
195 struct x25_forward *f;
198 if (v == SEQ_START_TOKEN) {
200 if (!list_empty(&x25_forward_list))
201 f = list_entry(x25_forward_list.next,
202 struct x25_forward, node);
206 if (f->node.next != &x25_forward_list)
207 f = list_entry(f->node.next, struct x25_forward, node);
215 static void x25_seq_forward_stop(struct seq_file *seq, void *v)
217 read_unlock_bh(&x25_forward_list_lock);
220 static int x25_seq_forward_show(struct seq_file *seq, void *v)
222 struct x25_forward *f;
224 if (v == SEQ_START_TOKEN) {
225 seq_printf(seq, "lci dev1 dev2\n");
231 seq_printf(seq, "%d %-10s %-10s\n",
232 f->lci, f->dev1->name, f->dev2->name);
238 static const struct seq_operations x25_seq_route_ops = {
239 .start = x25_seq_route_start,
240 .next = x25_seq_route_next,
241 .stop = x25_seq_route_stop,
242 .show = x25_seq_route_show,
245 static const struct seq_operations x25_seq_socket_ops = {
246 .start = x25_seq_socket_start,
247 .next = x25_seq_socket_next,
248 .stop = x25_seq_socket_stop,
249 .show = x25_seq_socket_show,
252 static const struct seq_operations x25_seq_forward_ops = {
253 .start = x25_seq_forward_start,
254 .next = x25_seq_forward_next,
255 .stop = x25_seq_forward_stop,
256 .show = x25_seq_forward_show,
259 static int x25_seq_socket_open(struct inode *inode, struct file *file)
261 return seq_open(file, &x25_seq_socket_ops);
264 static int x25_seq_route_open(struct inode *inode, struct file *file)
266 return seq_open(file, &x25_seq_route_ops);
269 static int x25_seq_forward_open(struct inode *inode, struct file *file)
271 return seq_open(file, &x25_seq_forward_ops);
274 static const struct file_operations x25_seq_socket_fops = {
275 .owner = THIS_MODULE,
276 .open = x25_seq_socket_open,
279 .release = seq_release,
282 static const struct file_operations x25_seq_route_fops = {
283 .owner = THIS_MODULE,
284 .open = x25_seq_route_open,
287 .release = seq_release,
290 static struct file_operations x25_seq_forward_fops = {
291 .owner = THIS_MODULE,
292 .open = x25_seq_forward_open,
295 .release = seq_release,
298 static struct proc_dir_entry *x25_proc_dir;
300 int __init x25_proc_init(void)
302 struct proc_dir_entry *p;
305 x25_proc_dir = proc_mkdir("x25", init_net.proc_net);
309 p = create_proc_entry("route", S_IRUGO, x25_proc_dir);
312 p->proc_fops = &x25_seq_route_fops;
314 p = create_proc_entry("socket", S_IRUGO, x25_proc_dir);
317 p->proc_fops = &x25_seq_socket_fops;
319 p = create_proc_entry("forward", S_IRUGO, x25_proc_dir);
322 p->proc_fops = &x25_seq_forward_fops;
328 remove_proc_entry("socket", x25_proc_dir);
330 remove_proc_entry("route", x25_proc_dir);
332 remove_proc_entry("x25", init_net.proc_net);
336 void __exit x25_proc_exit(void)
338 remove_proc_entry("forward", x25_proc_dir);
339 remove_proc_entry("route", x25_proc_dir);
340 remove_proc_entry("socket", x25_proc_dir);
341 remove_proc_entry("x25", init_net.proc_net);
344 #else /* CONFIG_PROC_FS */
346 int __init x25_proc_init(void)
351 void __exit x25_proc_exit(void)
354 #endif /* CONFIG_PROC_FS */