summaryrefslogtreecommitdiffstats
path: root/net/ipx/ipx_proc.c
blob: 576178482f893fadf6b4280251b5206dcc24368a (plain)
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
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
/*
 *	IPX proc routines
 *
 * 	Copyright(C) Arnaldo Carvalho de Melo <acme@conectiva.com.br>, 2002
 */

#include <linux/init.h>
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#include <linux/spinlock.h>
#include <linux/seq_file.h>
#include <net/net_namespace.h>
#include <net/tcp_states.h>
#include <net/ipx.h>

static __inline__ struct ipx_interface *ipx_get_interface_idx(loff_t pos)
{
	struct ipx_interface *i;

	list_for_each_entry(i, &ipx_interfaces, node)
		if (!pos--)
			goto out;
	i = NULL;
out:
	return i;
}

static struct ipx_interface *ipx_interfaces_next(struct ipx_interface *i)
{
	struct ipx_interface *rc = NULL;

	if (i->node.next != &ipx_interfaces)
		rc = list_entry(i->node.next, struct ipx_interface, node);
	return rc;
}

static void *ipx_seq_interface_start(struct seq_file *seq, loff_t *pos)
{
	loff_t l = *pos;

	spin_lock_bh(&ipx_interfaces_lock);
	return l ? ipx_get_interface_idx(--l) : SEQ_START_TOKEN;
}

static void *ipx_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos)
{
	struct ipx_interface *i;

	++*pos;
	if (v == SEQ_START_TOKEN)
		i = ipx_interfaces_head();
	else
		i = ipx_interfaces_next(v);
	return i;
}

static void ipx_seq_interface_stop(struct seq_file *seq, void *v)
{
	spin_unlock_bh(&ipx_interfaces_lock);
}

static int ipx_seq_interface_show(struct seq_file *seq, void *v)
{
	struct ipx_interface *i;

	if (v == SEQ_START_TOKEN) {
		seq_puts(seq, "Network    Node_Address   Primary  Device     "
			      "Frame_Type");
#ifdef IPX_REFCNT_DEBUG
		seq_puts(seq, "  refcnt");
#endif
		seq_puts(seq, "\n");
		goto out;
	}

	i = v;
	seq_printf(seq, "%08lX   ", (unsigned long int)ntohl(i->if_netnum));
	seq_printf(seq, "%02X%02X%02X%02X%02X%02X   ",
			i->if_node[0], i->if_node[1], i->if_node[2],
			i->if_node[3], i->if_node[4], i->if_node[5]);
	seq_printf(seq, "%-9s", i == ipx_primary_net ? "Yes" : "No");
	seq_printf(seq, "%-11s", ipx_device_name(i));
	seq_printf(seq, "%-9s", ipx_frame_name(i->if_dlink_type));
#ifdef IPX_REFCNT_DEBUG
	seq_printf(seq, "%6d", atomic_read(&i->refcnt));
#endif
	seq_puts(seq, "\n");
out:
	return 0;
}

static struct ipx_route *ipx_routes_head(void)
{
	struct ipx_route *rc = NULL;

	if (!list_empty(&ipx_routes))
		rc = list_entry(ipx_routes.next, struct ipx_route, node);
	return rc;
}

static struct ipx_route *ipx_routes_next(struct ipx_route *r)
{
	struct ipx_route *rc = NULL;

	if (r->node.next != &ipx_routes)
		rc = list_entry(r->node.next, struct ipx_route, node);
	return rc;
}

static __inline__ struct ipx_route *ipx_get_route_idx(loff_t pos)
{
	struct ipx_route *r;

	list_for_each_entry(r, &ipx_routes, node)
		if (!pos--)
			goto out;
	r = NULL;
out:
	return r;
}

static void *ipx_seq_route_start(struct seq_file *seq, loff_t *pos)
{
	loff_t l = *pos;
	read_lock_bh(&ipx_routes_lock);
	return l ? ipx_get_route_idx(--l) : SEQ_START_TOKEN;
}

static void *ipx_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
{
	struct ipx_route *r;

	++*pos;
	if (v == SEQ_START_TOKEN)
		r = ipx_routes_head();
	else
		r = ipx_routes_next(v);
	return r;
}

static void ipx_seq_route_stop(struct seq_file *seq, void *v)
{
	read_unlock_bh(&ipx_routes_lock);
}

static int ipx_seq_route_show(struct seq_file *seq, void *v)
{
	struct ipx_route *rt;

	if (v == SEQ_START_TOKEN) {
		seq_puts(seq, "Network    Router_Net   Router_Node\n");
		goto out;
	}
	rt = v;
	seq_printf(seq, "%08lX   ", (unsigned long int)ntohl(rt->ir_net));
	if (rt->ir_routed)
		seq_printf(seq, "%08lX     %02X%02X%02X%02X%02X%02X\n",
			   (long unsigned int)ntohl(rt->ir_intrfc->if_netnum),
			   rt->ir_router_node[0], rt->ir_router_node[1],
			   rt->ir_router_node[2], rt->ir_router_node[3],
			   rt->ir_router_node[4], rt->ir_router_node[5]);
	else
		seq_puts(seq, "Directly     Connected\n");
out:
	return 0;
}

static __inline__ struct sock *ipx_get_socket_idx(loff_t pos)
{
	struct sock *s = NULL;
	struct hlist_node *node;
	struct ipx_interface *i;

	list_for_each_entry(i, &ipx_interfaces, node) {
		spin_lock_bh(&i->if_sklist_lock);
		sk_for_each(s, node, &i->if_sklist) {
			if (!pos)
				break;
			--pos;
		}
		spin_unlock_bh(&i->if_sklist_lock);
		if (!pos) {
			if (node)
				goto found;
			break;
		}
	}
	s = NULL;
found:
	return s;
}

static void *ipx_seq_socket_start(struct seq_file *seq, loff_t *pos)
{
	loff_t l = *pos;

	spin_lock_bh(&ipx_interfaces_lock);
	return l ? ipx_get_socket_idx(--l) : SEQ_START_TOKEN;
}

static void *ipx_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
{
	struct sock* sk, *next;
	struct ipx_interface *i;
	struct ipx_sock *ipxs;

	++*pos;
	if (v == SEQ_START_TOKEN) {
		sk = NULL;
		i = ipx_interfaces_head();
		if (!i)
			goto out;
		sk = sk_head(&i->if_sklist);
		if (sk)
			spin_lock_bh(&i->if_sklist_lock);
		goto out;
	}
	sk = v;
	next = sk_next(sk);
	if (next) {
		sk = next;
		goto out;
	}
	ipxs = ipx_sk(sk);
	i = ipxs->intrfc;
	spin_unlock_bh(&i->if_sklist_lock);
	sk = NULL;
	for (;;) {
		i = ipx_interfaces_next(i);
		if (!i)
			break;
		spin_lock_bh(&i->if_sklist_lock);
		if (!hlist_empty(&i->if_sklist)) {
			sk = sk_head(&i->if_sklist);
			break;
		}
		spin_unlock_bh(&i->if_sklist_lock);
	}
out:
	return sk;
}

static int ipx_seq_socket_show(struct seq_file *seq, void *v)
{
	struct sock *s;
	struct ipx_sock *ipxs;

	if (v == SEQ_START_TOKEN) {
#ifdef CONFIG_IPX_INTERN
		seq_puts(seq, "Local_Address               "
			      "Remote_Address              Tx_Queue  "
			      "Rx_Queue  State  Uid\n");
#else
		seq_puts(seq, "Local_Address  Remote_Address              "
			      "Tx_Queue  Rx_Queue  State  Uid\n");
#endif
		goto out;
	}

	s = v;
	ipxs = ipx_sk(s);
#ifdef CONFIG_IPX_INTERN
	seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X  ",
		   (unsigned long)ntohl(ipxs->intrfc->if_netnum),
		   ipxs->node[0], ipxs->node[1], ipxs->node[2], ipxs->node[3],
		   ipxs->node[4], ipxs->node[5], ntohs(ipxs->port));
#else
	seq_printf(seq, "%08lX:%04X  ", (unsigned long) ntohl(ipxs->intrfc->if_netnum),
		   ntohs(ipxs->port));
#endif	/* CONFIG_IPX_INTERN */
	if (s->sk_state != TCP_ESTABLISHED)
		seq_printf(seq, "%-28s", "Not_Connected");
	else {
		seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X  ",
			   (unsigned long)ntohl(ipxs->dest_addr.net),
			   ipxs->dest_addr.node[0], ipxs->dest_addr.node[1],
			   ipxs->dest_addr.node[2], ipxs->dest_addr.node[3],
			   ipxs->dest_addr.node[4], ipxs->dest_addr.node[5],
			   ntohs(ipxs->dest_addr.sock));
	}

	seq_printf(seq, "%08X  %08X  %02X     %03d\n",
		   sk_wmem_alloc_get(s),
		   sk_rmem_alloc_get(s),
		   s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
out:
	return 0;
}

static const struct seq_operations ipx_seq_interface_ops = {
	.start  = ipx_seq_interface_start,
	.next   = ipx_seq_interface_next,
	.stop   = ipx_seq_interface_stop,
	.show   = ipx_seq_interface_show,
};

static const struct seq_operations ipx_seq_route_ops = {
	.start  = ipx_seq_route_start,
	.next   = ipx_seq_route_next,
	.stop   = ipx_seq_route_stop,
	.show   = ipx_seq_route_show,
};

static const struct seq_operations ipx_seq_socket_ops = {
	.start  = ipx_seq_socket_start,
	.next   = ipx_seq_socket_next,
	.stop   = ipx_seq_interface_stop,
	.show   = ipx_seq_socket_show,
};

static int ipx_seq_route_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &ipx_seq_route_ops);
}

static int ipx_seq_interface_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &ipx_seq_interface_ops);
}

static int ipx_seq_socket_open(struct inode *inode, struct file *file)
{
	return seq_open(file, &ipx_seq_socket_ops);
}

static const struct file_operations ipx_seq_interface_fops = {
	.owner		= THIS_MODULE,
	.open           = ipx_seq_interface_open,
	.read           = seq_read,
	.llseek         = seq_lseek,
	.release        = seq_release,
};

static const struct file_operations ipx_seq_route_fops = {
	.owner		= THIS_MODULE,
	.open           = ipx_seq_route_open,
	.read           = seq_read,
	.llseek         = seq_lseek,
	.release        = seq_release,
};

static const struct file_operations ipx_seq_socket_fops = {
	.owner		= THIS_MODULE,
	.open           = ipx_seq_socket_open,
	.read           = seq_read,
	.llseek         = seq_lseek,
	.release        = seq_release,
};

static struct proc_dir_entry *ipx_proc_dir;

int __init ipx_proc_init(void)
{
	struct proc_dir_entry *p;
	int rc = -ENOMEM;

	ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);

	if (!ipx_proc_dir)
		goto out;
	p = proc_create("interface", S_IRUGO,
			ipx_proc_dir, &ipx_seq_interface_fops);
	if (!p)
		goto out_interface;

	p = proc_create("route", S_IRUGO, ipx_proc_dir, &ipx_seq_route_fops);
	if (!p)
		goto out_route;

	p = proc_create("socket", S_IRUGO, ipx_proc_dir, &ipx_seq_socket_fops);
	if (!p)
		goto out_socket;

	rc = 0;
out:
	return rc;
out_socket:
	remove_proc_entry("route", ipx_proc_dir);
out_route:
	remove_proc_entry("interface", ipx_proc_dir);
out_interface:
	remove_proc_entry("ipx", init_net.proc_net);
	goto out;
}

void __exit ipx_proc_exit(void)
{
	remove_proc_entry("interface", ipx_proc_dir);
	remove_proc_entry("route", ipx_proc_dir);
	remove_proc_entry("socket", ipx_proc_dir);
	remove_proc_entry("ipx", init_net.proc_net);
}

#else /* CONFIG_PROC_FS */

int __init ipx_proc_init(void)
{
	return 0;
}

void __exit ipx_proc_exit(void)
{
}

#endif /* CONFIG_PROC_FS */
OpenPOWER on IntegriCloud