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[/] [or1k_soc_on_altera_embedded_dev_kit/] [tags/] [linux-2.6/] [linux-2.6.24_or32_unified_v2.3/] [net/] [x25/] [x25_proc.c] - Blame information for rev 8

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Line No. Rev Author Line
1 3 xianfeng 
/*
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
6 
 *      screw up. It might even work.
7 
 *
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 
 
20 
#include <linux/init.h>
21 
#include <linux/proc_fs.h>
22 
#include <linux/seq_file.h>
23 
#include <net/net_namespace.h>
24 
#include <net/sock.h>
25 
#include <net/x25.h>
26 
 
27 
#ifdef CONFIG_PROC_FS
28 
static __inline__ struct x25_route *x25_get_route_idx(loff_t pos)
29 
{
30 
        struct list_head *route_entry;
31 
        struct x25_route *rt = NULL;
32 
 
33 
        list_for_each(route_entry, &x25_route_list) {
34 
                rt = list_entry(route_entry, struct x25_route, node);
35 
                if (!pos--)
36 
                        goto found;
37 
        }
38 
        rt = NULL;
39 
found:
40 
        return rt;
41 
}
42 
 
43 
static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos)
44 
{
45 
        loff_t l = *pos;
46 
 
47 
        read_lock_bh(&x25_route_list_lock);
48 
        return l ? x25_get_route_idx(--l) : SEQ_START_TOKEN;
49 
}
50 
 
51 
static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
52 
{
53 
        struct x25_route *rt;
54 
 
55 
        ++*pos;
56 
        if (v == SEQ_START_TOKEN) {
57 
                rt = NULL;
58 
                if (!list_empty(&x25_route_list))
59 
                        rt = list_entry(x25_route_list.next,
60 
                                        struct x25_route, node);
61 
                goto out;
62 
        }
63 
        rt = v;
64 
        if (rt->node.next != &x25_route_list)
65 
                rt = list_entry(rt->node.next, struct x25_route, node);
66 
        else
67 
                rt = NULL;
68 
out:
69 
        return rt;
70 
}
71 
 
72 
static void x25_seq_route_stop(struct seq_file *seq, void *v)
73 
{
74 
        read_unlock_bh(&x25_route_list_lock);
75 
}
76 
 
77 
static int x25_seq_route_show(struct seq_file *seq, void *v)
78 
{
79 
        struct x25_route *rt;
80 
 
81 
        if (v == SEQ_START_TOKEN) {
82 
                seq_puts(seq, "Address          Digits  Device\n");
83 
                goto out;
84 
        }
85 
 
86 
        rt = v;
87 
        seq_printf(seq, "%-15s  %-6d  %-5s\n",
88 
                   rt->address.x25_addr, rt->sigdigits,
89 
                   rt->dev ? rt->dev->name : "???");
90 
out:
91 
        return 0;
92 
}
93 
 
94 
static __inline__ struct sock *x25_get_socket_idx(loff_t pos)
95 
{
96 
        struct sock *s;
97 
        struct hlist_node *node;
98 
 
99 
        sk_for_each(s, node, &x25_list)
100 
                if (!pos--)
101 
                        goto found;
102 
        s = NULL;
103 
found:
104 
        return s;
105 
}
106 
 
107 
static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos)
108 
{
109 
        loff_t l = *pos;
110 
 
111 
        read_lock_bh(&x25_list_lock);
112 
        return l ? x25_get_socket_idx(--l) : SEQ_START_TOKEN;
113 
}
114 
 
115 
static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
116 
{
117 
        struct sock *s;
118 
 
119 
        ++*pos;
120 
        if (v == SEQ_START_TOKEN) {
121 
                s = sk_head(&x25_list);
122 
                goto out;
123 
        }
124 
        s = sk_next(v);
125 
out:
126 
        return s;
127 
}
128 
 
129 
static void x25_seq_socket_stop(struct seq_file *seq, void *v)
130 
{
131 
        read_unlock_bh(&x25_list_lock);
132 
}
133 
 
134 
static int x25_seq_socket_show(struct seq_file *seq, void *v)
135 
{
136 
        struct sock *s;
137 
        struct x25_sock *x25;
138 
        struct net_device *dev;
139 
        const char *devname;
140 
 
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");
144 
                goto out;
145 
        }
146 
 
147 
        s = v;
148 
        x25 = x25_sk(s);
149 
 
150 
        if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL)
151 
                devname = "???";
152 
        else
153 
                devname = x25->neighbour->dev->name;
154 
 
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);
165 
out:
166 
        return 0;
167 
}
168 
 
169 
static __inline__ struct x25_forward *x25_get_forward_idx(loff_t pos)
170 
{
171 
        struct x25_forward *f;
172 
        struct list_head *entry;
173 
 
174 
        list_for_each(entry, &x25_forward_list) {
175 
                f = list_entry(entry, struct x25_forward, node);
176 
                if (!pos--)
177 
                        goto found;
178 
        }
179 
 
180 
        f = NULL;
181 
found:
182 
        return f;
183 
}
184 
 
185 
static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos)
186 
{
187 
        loff_t l = *pos;
188 
 
189 
        read_lock_bh(&x25_forward_list_lock);
190 
        return l ? x25_get_forward_idx(--l) : SEQ_START_TOKEN;
191 
}
192 
 
193 
static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos)
194 
{
195 
        struct x25_forward *f;
196 
 
197 
        ++*pos;
198 
        if (v == SEQ_START_TOKEN) {
199 
                f = NULL;
200 
                if (!list_empty(&x25_forward_list))
201 
                        f = list_entry(x25_forward_list.next,
202 
                                        struct x25_forward, node);
203 
                goto out;
204 
        }
205 
        f = v;
206 
        if (f->node.next != &x25_forward_list)
207 
                f = list_entry(f->node.next, struct x25_forward, node);
208 
        else
209 
                f = NULL;
210 
out:
211 
        return f;
212 
 
213 
}
214 
 
215 
static void x25_seq_forward_stop(struct seq_file *seq, void *v)
216 
{
217 
        read_unlock_bh(&x25_forward_list_lock);
218 
}
219 
 
220 
static int x25_seq_forward_show(struct seq_file *seq, void *v)
221 
{
222 
        struct x25_forward *f;
223 
 
224 
        if (v == SEQ_START_TOKEN) {
225 
                seq_printf(seq, "lci dev1       dev2\n");
226 
                goto out;
227 
        }
228 
 
229 
        f = v;
230 
 
231 
        seq_printf(seq, "%d %-10s %-10s\n",
232 
                        f->lci, f->dev1->name, f->dev2->name);
233 
 
234 
out:
235 
        return 0;
236 
}
237 
 
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,
243 
};
244 
 
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,
250 
};
251 
 
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,
257 
};
258 
 
259 
static int x25_seq_socket_open(struct inode *inode, struct file *file)
260 
{
261 
        return seq_open(file, &x25_seq_socket_ops);
262 
}
263 
 
264 
static int x25_seq_route_open(struct inode *inode, struct file *file)
265 
{
266 
        return seq_open(file, &x25_seq_route_ops);
267 
}
268 
 
269 
static int x25_seq_forward_open(struct inode *inode, struct file *file)
270 
{
271 
        return seq_open(file, &x25_seq_forward_ops);
272 
}
273 
 
274 
static const struct file_operations x25_seq_socket_fops = {
275 
        .owner          = THIS_MODULE,
276 
        .open           = x25_seq_socket_open,
277 
        .read           = seq_read,
278 
        .llseek         = seq_lseek,
279 
        .release        = seq_release,
280 
};
281 
 
282 
static const struct file_operations x25_seq_route_fops = {
283 
        .owner          = THIS_MODULE,
284 
        .open           = x25_seq_route_open,
285 
        .read           = seq_read,
286 
        .llseek         = seq_lseek,
287 
        .release        = seq_release,
288 
};
289 
 
290 
static struct file_operations x25_seq_forward_fops = {
291 
        .owner          = THIS_MODULE,
292 
        .open           = x25_seq_forward_open,
293 
        .read           = seq_read,
294 
        .llseek         = seq_lseek,
295 
        .release        = seq_release,
296 
};
297 
 
298 
static struct proc_dir_entry *x25_proc_dir;
299 
 
300 
int __init x25_proc_init(void)
301 
{
302 
        struct proc_dir_entry *p;
303 
        int rc = -ENOMEM;
304 
 
305 
        x25_proc_dir = proc_mkdir("x25", init_net.proc_net);
306 
        if (!x25_proc_dir)
307 
                goto out;
308 
 
309 
        p = create_proc_entry("route", S_IRUGO, x25_proc_dir);
310 
        if (!p)
311 
                goto out_route;
312 
        p->proc_fops = &x25_seq_route_fops;
313 
 
314 
        p = create_proc_entry("socket", S_IRUGO, x25_proc_dir);
315 
        if (!p)
316 
                goto out_socket;
317 
        p->proc_fops = &x25_seq_socket_fops;
318 
 
319 
        p = create_proc_entry("forward", S_IRUGO, x25_proc_dir);
320 
        if (!p)
321 
                goto out_forward;
322 
        p->proc_fops = &x25_seq_forward_fops;
323 
        rc = 0;
324 
 
325 
out:
326 
        return rc;
327 
out_forward:
328 
        remove_proc_entry("socket", x25_proc_dir);
329 
out_socket:
330 
        remove_proc_entry("route", x25_proc_dir);
331 
out_route:
332 
        remove_proc_entry("x25", init_net.proc_net);
333 
        goto out;
334 
}
335 
 
336 
void __exit x25_proc_exit(void)
337 
{
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);
342 
}
343 
 
344 
#else /* CONFIG_PROC_FS */
345 
 
346 
int __init x25_proc_init(void)
347 
{
348 
        return 0;
349 
}
350 
 
351 
void __exit x25_proc_exit(void)
352 
{
353 
}
354 
#endif /* CONFIG_PROC_FS */

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