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1/*
2 * IPX proc routines
3 *
4 * Copyright(C) Arnaldo Carvalho de Melo <acme@conectiva.com.br>, 2002
5 */
6
7#include <linux/init.h>
8#ifdef CONFIG_PROC_FS
9#include <linux/proc_fs.h>
10#include <linux/spinlock.h>
11#include <linux/seq_file.h>
12#include <net/net_namespace.h>
13#include <net/tcp_states.h>
14#include <net/ipx.h>
15
16static void *ipx_seq_interface_start(struct seq_file *seq, loff_t *pos)
17{
18 spin_lock_bh(&ipx_interfaces_lock);
19 return seq_list_start_head(&ipx_interfaces, *pos);
20}
21
22static void *ipx_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos)
23{
24 return seq_list_next(v, &ipx_interfaces, pos);
25}
26
27static void ipx_seq_interface_stop(struct seq_file *seq, void *v)
28{
29 spin_unlock_bh(&ipx_interfaces_lock);
30}
31
32static int ipx_seq_interface_show(struct seq_file *seq, void *v)
33{
34 struct ipx_interface *i;
35
36 if (v == &ipx_interfaces) {
37 seq_puts(seq, "Network Node_Address Primary Device "
38 "Frame_Type");
39#ifdef IPX_REFCNT_DEBUG
40 seq_puts(seq, " refcnt");
41#endif
42 seq_puts(seq, "\n");
43 goto out;
44 }
45
46 i = list_entry(v, struct ipx_interface, node);
47 seq_printf(seq, "%08lX ", (unsigned long int)ntohl(i->if_netnum));
48 seq_printf(seq, "%02X%02X%02X%02X%02X%02X ",
49 i->if_node[0], i->if_node[1], i->if_node[2],
50 i->if_node[3], i->if_node[4], i->if_node[5]);
51 seq_printf(seq, "%-9s", i == ipx_primary_net ? "Yes" : "No");
52 seq_printf(seq, "%-11s", ipx_device_name(i));
53 seq_printf(seq, "%-9s", ipx_frame_name(i->if_dlink_type));
54#ifdef IPX_REFCNT_DEBUG
55 seq_printf(seq, "%6d", atomic_read(&i->refcnt));
56#endif
57 seq_puts(seq, "\n");
58out:
59 return 0;
60}
61
62static void *ipx_seq_route_start(struct seq_file *seq, loff_t *pos)
63{
64 read_lock_bh(&ipx_routes_lock);
65 return seq_list_start_head(&ipx_routes, *pos);
66}
67
68static void *ipx_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
69{
70 return seq_list_next(v, &ipx_routes, pos);
71}
72
73static void ipx_seq_route_stop(struct seq_file *seq, void *v)
74{
75 read_unlock_bh(&ipx_routes_lock);
76}
77
78static int ipx_seq_route_show(struct seq_file *seq, void *v)
79{
80 struct ipx_route *rt;
81
82 if (v == &ipx_routes) {
83 seq_puts(seq, "Network Router_Net Router_Node\n");
84 goto out;
85 }
86
87 rt = list_entry(v, struct ipx_route, node);
88
89 seq_printf(seq, "%08lX ", (unsigned long int)ntohl(rt->ir_net));
90 if (rt->ir_routed)
91 seq_printf(seq, "%08lX %02X%02X%02X%02X%02X%02X\n",
92 (long unsigned int)ntohl(rt->ir_intrfc->if_netnum),
93 rt->ir_router_node[0], rt->ir_router_node[1],
94 rt->ir_router_node[2], rt->ir_router_node[3],
95 rt->ir_router_node[4], rt->ir_router_node[5]);
96 else
97 seq_puts(seq, "Directly Connected\n");
98out:
99 return 0;
100}
101
102static __inline__ struct sock *ipx_get_socket_idx(loff_t pos)
103{
104 struct sock *s = NULL;
105 struct hlist_node *node;
106 struct ipx_interface *i;
107
108 list_for_each_entry(i, &ipx_interfaces, node) {
109 spin_lock_bh(&i->if_sklist_lock);
110 sk_for_each(s, node, &i->if_sklist) {
111 if (!pos)
112 break;
113 --pos;
114 }
115 spin_unlock_bh(&i->if_sklist_lock);
116 if (!pos) {
117 if (node)
118 goto found;
119 break;
120 }
121 }
122 s = NULL;
123found:
124 return s;
125}
126
127static void *ipx_seq_socket_start(struct seq_file *seq, loff_t *pos)
128{
129 loff_t l = *pos;
130
131 spin_lock_bh(&ipx_interfaces_lock);
132 return l ? ipx_get_socket_idx(--l) : SEQ_START_TOKEN;
133}
134
135static void *ipx_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
136{
137 struct sock* sk, *next;
138 struct ipx_interface *i;
139 struct ipx_sock *ipxs;
140
141 ++*pos;
142 if (v == SEQ_START_TOKEN) {
143 sk = NULL;
144 i = ipx_interfaces_head();
145 if (!i)
146 goto out;
147 sk = sk_head(&i->if_sklist);
148 if (sk)
149 spin_lock_bh(&i->if_sklist_lock);
150 goto out;
151 }
152 sk = v;
153 next = sk_next(sk);
154 if (next) {
155 sk = next;
156 goto out;
157 }
158 ipxs = ipx_sk(sk);
159 i = ipxs->intrfc;
160 spin_unlock_bh(&i->if_sklist_lock);
161 sk = NULL;
162 for (;;) {
163 if (i->node.next == &ipx_interfaces)
164 break;
165 i = list_entry(i->node.next, struct ipx_interface, node);
166 spin_lock_bh(&i->if_sklist_lock);
167 if (!hlist_empty(&i->if_sklist)) {
168 sk = sk_head(&i->if_sklist);
169 break;
170 }
171 spin_unlock_bh(&i->if_sklist_lock);
172 }
173out:
174 return sk;
175}
176
177static int ipx_seq_socket_show(struct seq_file *seq, void *v)
178{
179 struct sock *s;
180 struct ipx_sock *ipxs;
181
182 if (v == SEQ_START_TOKEN) {
183#ifdef CONFIG_IPX_INTERN
184 seq_puts(seq, "Local_Address "
185 "Remote_Address Tx_Queue "
186 "Rx_Queue State Uid\n");
187#else
188 seq_puts(seq, "Local_Address Remote_Address "
189 "Tx_Queue Rx_Queue State Uid\n");
190#endif
191 goto out;
192 }
193
194 s = v;
195 ipxs = ipx_sk(s);
196#ifdef CONFIG_IPX_INTERN
197 seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ",
198 (unsigned long)ntohl(ipxs->intrfc->if_netnum),
199 ipxs->node[0], ipxs->node[1], ipxs->node[2], ipxs->node[3],
200 ipxs->node[4], ipxs->node[5], ntohs(ipxs->port));
201#else
202 seq_printf(seq, "%08lX:%04X ", (unsigned long) ntohl(ipxs->intrfc->if_netnum),
203 ntohs(ipxs->port));
204#endif /* CONFIG_IPX_INTERN */
205 if (s->sk_state != TCP_ESTABLISHED)
206 seq_printf(seq, "%-28s", "Not_Connected");
207 else {
208 seq_printf(seq, "%08lX:%02X%02X%02X%02X%02X%02X:%04X ",
209 (unsigned long)ntohl(ipxs->dest_addr.net),
210 ipxs->dest_addr.node[0], ipxs->dest_addr.node[1],
211 ipxs->dest_addr.node[2], ipxs->dest_addr.node[3],
212 ipxs->dest_addr.node[4], ipxs->dest_addr.node[5],
213 ntohs(ipxs->dest_addr.sock));
214 }
215
216 seq_printf(seq, "%08X %08X %02X %03d\n",
217 sk_wmem_alloc_get(s),
218 sk_rmem_alloc_get(s),
219 s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
220out:
221 return 0;
222}
223
224static const struct seq_operations ipx_seq_interface_ops = {
225 .start = ipx_seq_interface_start,
226 .next = ipx_seq_interface_next,
227 .stop = ipx_seq_interface_stop,
228 .show = ipx_seq_interface_show,
229};
230
231static const struct seq_operations ipx_seq_route_ops = {
232 .start = ipx_seq_route_start,
233 .next = ipx_seq_route_next,
234 .stop = ipx_seq_route_stop,
235 .show = ipx_seq_route_show,
236};
237
238static const struct seq_operations ipx_seq_socket_ops = {
239 .start = ipx_seq_socket_start,
240 .next = ipx_seq_socket_next,
241 .stop = ipx_seq_interface_stop,
242 .show = ipx_seq_socket_show,
243};
244
245static int ipx_seq_route_open(struct inode *inode, struct file *file)
246{
247 return seq_open(file, &ipx_seq_route_ops);
248}
249
250static int ipx_seq_interface_open(struct inode *inode, struct file *file)
251{
252 return seq_open(file, &ipx_seq_interface_ops);
253}
254
255static int ipx_seq_socket_open(struct inode *inode, struct file *file)
256{
257 return seq_open(file, &ipx_seq_socket_ops);
258}
259
260static const struct file_operations ipx_seq_interface_fops = {
261 .owner = THIS_MODULE,
262 .open = ipx_seq_interface_open,
263 .read = seq_read,
264 .llseek = seq_lseek,
265 .release = seq_release,
266};
267
268static const struct file_operations ipx_seq_route_fops = {
269 .owner = THIS_MODULE,
270 .open = ipx_seq_route_open,
271 .read = seq_read,
272 .llseek = seq_lseek,
273 .release = seq_release,
274};
275
276static const struct file_operations ipx_seq_socket_fops = {
277 .owner = THIS_MODULE,
278 .open = ipx_seq_socket_open,
279 .read = seq_read,
280 .llseek = seq_lseek,
281 .release = seq_release,
282};
283
284static struct proc_dir_entry *ipx_proc_dir;
285
286int __init ipx_proc_init(void)
287{
288 struct proc_dir_entry *p;
289 int rc = -ENOMEM;
290
291 ipx_proc_dir = proc_mkdir("ipx", init_net.proc_net);
292
293 if (!ipx_proc_dir)
294 goto out;
295 p = proc_create("interface", S_IRUGO,
296 ipx_proc_dir, &ipx_seq_interface_fops);
297 if (!p)
298 goto out_interface;
299
300 p = proc_create("route", S_IRUGO, ipx_proc_dir, &ipx_seq_route_fops);
301 if (!p)
302 goto out_route;
303
304 p = proc_create("socket", S_IRUGO, ipx_proc_dir, &ipx_seq_socket_fops);
305 if (!p)
306 goto out_socket;
307
308 rc = 0;
309out:
310 return rc;
311out_socket:
312 remove_proc_entry("route", ipx_proc_dir);
313out_route:
314 remove_proc_entry("interface", ipx_proc_dir);
315out_interface:
316 remove_proc_entry("ipx", init_net.proc_net);
317 goto out;
318}
319
320void __exit ipx_proc_exit(void)
321{
322 remove_proc_entry("interface", ipx_proc_dir);
323 remove_proc_entry("route", ipx_proc_dir);
324 remove_proc_entry("socket", ipx_proc_dir);
325 remove_proc_entry("ipx", init_net.proc_net);
326}
327
328#else /* CONFIG_PROC_FS */
329
330int __init ipx_proc_init(void)
331{
332 return 0;
333}
334
335void __exit ipx_proc_exit(void)
336{
337}
338
339#endif /* CONFIG_PROC_FS */