Contents of /alx-src/tags/kernel26-2.6.12-alx-r9/net/appletalk/atalk_proc.c
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Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
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File size: 7164 byte(s)
Wed Mar 4 11:03:09 2009 UTC (15 years, 3 months ago) by niro
File MIME type: text/plain
File size: 7164 byte(s)
Tag kernel26-2.6.12-alx-r9
1 | /* |
2 | * atalk_proc.c - proc support for Appletalk |
3 | * |
4 | * Copyright(c) Arnaldo Carvalho de Melo <acme@conectiva.com.br> |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License as published by the |
8 | * Free Software Foundation, version 2. |
9 | */ |
10 | |
11 | #include <linux/config.h> |
12 | #include <linux/init.h> |
13 | #include <linux/proc_fs.h> |
14 | #include <linux/seq_file.h> |
15 | #include <net/sock.h> |
16 | #include <linux/atalk.h> |
17 | |
18 | |
19 | static __inline__ struct atalk_iface *atalk_get_interface_idx(loff_t pos) |
20 | { |
21 | struct atalk_iface *i; |
22 | |
23 | for (i = atalk_interfaces; pos && i; i = i->next) |
24 | --pos; |
25 | |
26 | return i; |
27 | } |
28 | |
29 | static void *atalk_seq_interface_start(struct seq_file *seq, loff_t *pos) |
30 | { |
31 | loff_t l = *pos; |
32 | |
33 | read_lock_bh(&atalk_interfaces_lock); |
34 | return l ? atalk_get_interface_idx(--l) : SEQ_START_TOKEN; |
35 | } |
36 | |
37 | static void *atalk_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos) |
38 | { |
39 | struct atalk_iface *i; |
40 | |
41 | ++*pos; |
42 | if (v == SEQ_START_TOKEN) { |
43 | i = NULL; |
44 | if (atalk_interfaces) |
45 | i = atalk_interfaces; |
46 | goto out; |
47 | } |
48 | i = v; |
49 | i = i->next; |
50 | out: |
51 | return i; |
52 | } |
53 | |
54 | static void atalk_seq_interface_stop(struct seq_file *seq, void *v) |
55 | { |
56 | read_unlock_bh(&atalk_interfaces_lock); |
57 | } |
58 | |
59 | static int atalk_seq_interface_show(struct seq_file *seq, void *v) |
60 | { |
61 | struct atalk_iface *iface; |
62 | |
63 | if (v == SEQ_START_TOKEN) { |
64 | seq_puts(seq, "Interface Address Networks " |
65 | "Status\n"); |
66 | goto out; |
67 | } |
68 | |
69 | iface = v; |
70 | seq_printf(seq, "%-16s %04X:%02X %04X-%04X %d\n", |
71 | iface->dev->name, ntohs(iface->address.s_net), |
72 | iface->address.s_node, ntohs(iface->nets.nr_firstnet), |
73 | ntohs(iface->nets.nr_lastnet), iface->status); |
74 | out: |
75 | return 0; |
76 | } |
77 | |
78 | static __inline__ struct atalk_route *atalk_get_route_idx(loff_t pos) |
79 | { |
80 | struct atalk_route *r; |
81 | |
82 | for (r = atalk_routes; pos && r; r = r->next) |
83 | --pos; |
84 | |
85 | return r; |
86 | } |
87 | |
88 | static void *atalk_seq_route_start(struct seq_file *seq, loff_t *pos) |
89 | { |
90 | loff_t l = *pos; |
91 | |
92 | read_lock_bh(&atalk_routes_lock); |
93 | return l ? atalk_get_route_idx(--l) : SEQ_START_TOKEN; |
94 | } |
95 | |
96 | static void *atalk_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) |
97 | { |
98 | struct atalk_route *r; |
99 | |
100 | ++*pos; |
101 | if (v == SEQ_START_TOKEN) { |
102 | r = NULL; |
103 | if (atalk_routes) |
104 | r = atalk_routes; |
105 | goto out; |
106 | } |
107 | r = v; |
108 | r = r->next; |
109 | out: |
110 | return r; |
111 | } |
112 | |
113 | static void atalk_seq_route_stop(struct seq_file *seq, void *v) |
114 | { |
115 | read_unlock_bh(&atalk_routes_lock); |
116 | } |
117 | |
118 | static int atalk_seq_route_show(struct seq_file *seq, void *v) |
119 | { |
120 | struct atalk_route *rt; |
121 | |
122 | if (v == SEQ_START_TOKEN) { |
123 | seq_puts(seq, "Target Router Flags Dev\n"); |
124 | goto out; |
125 | } |
126 | |
127 | if (atrtr_default.dev) { |
128 | rt = &atrtr_default; |
129 | seq_printf(seq, "Default %04X:%02X %-4d %s\n", |
130 | ntohs(rt->gateway.s_net), rt->gateway.s_node, |
131 | rt->flags, rt->dev->name); |
132 | } |
133 | |
134 | rt = v; |
135 | seq_printf(seq, "%04X:%02X %04X:%02X %-4d %s\n", |
136 | ntohs(rt->target.s_net), rt->target.s_node, |
137 | ntohs(rt->gateway.s_net), rt->gateway.s_node, |
138 | rt->flags, rt->dev->name); |
139 | out: |
140 | return 0; |
141 | } |
142 | |
143 | static __inline__ struct sock *atalk_get_socket_idx(loff_t pos) |
144 | { |
145 | struct sock *s; |
146 | struct hlist_node *node; |
147 | |
148 | sk_for_each(s, node, &atalk_sockets) |
149 | if (!pos--) |
150 | goto found; |
151 | s = NULL; |
152 | found: |
153 | return s; |
154 | } |
155 | |
156 | static void *atalk_seq_socket_start(struct seq_file *seq, loff_t *pos) |
157 | { |
158 | loff_t l = *pos; |
159 | |
160 | read_lock_bh(&atalk_sockets_lock); |
161 | return l ? atalk_get_socket_idx(--l) : SEQ_START_TOKEN; |
162 | } |
163 | |
164 | static void *atalk_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) |
165 | { |
166 | struct sock *i; |
167 | |
168 | ++*pos; |
169 | if (v == SEQ_START_TOKEN) { |
170 | i = sk_head(&atalk_sockets); |
171 | goto out; |
172 | } |
173 | i = sk_next(v); |
174 | out: |
175 | return i; |
176 | } |
177 | |
178 | static void atalk_seq_socket_stop(struct seq_file *seq, void *v) |
179 | { |
180 | read_unlock_bh(&atalk_sockets_lock); |
181 | } |
182 | |
183 | static int atalk_seq_socket_show(struct seq_file *seq, void *v) |
184 | { |
185 | struct sock *s; |
186 | struct atalk_sock *at; |
187 | |
188 | if (v == SEQ_START_TOKEN) { |
189 | seq_printf(seq, "Type Local_addr Remote_addr Tx_queue " |
190 | "Rx_queue St UID\n"); |
191 | goto out; |
192 | } |
193 | |
194 | s = v; |
195 | at = at_sk(s); |
196 | |
197 | seq_printf(seq, "%02X %04X:%02X:%02X %04X:%02X:%02X %08X:%08X " |
198 | "%02X %d\n", |
199 | s->sk_type, ntohs(at->src_net), at->src_node, at->src_port, |
200 | ntohs(at->dest_net), at->dest_node, at->dest_port, |
201 | atomic_read(&s->sk_wmem_alloc), |
202 | atomic_read(&s->sk_rmem_alloc), |
203 | s->sk_state, SOCK_INODE(s->sk_socket)->i_uid); |
204 | out: |
205 | return 0; |
206 | } |
207 | |
208 | static struct seq_operations atalk_seq_interface_ops = { |
209 | .start = atalk_seq_interface_start, |
210 | .next = atalk_seq_interface_next, |
211 | .stop = atalk_seq_interface_stop, |
212 | .show = atalk_seq_interface_show, |
213 | }; |
214 | |
215 | static struct seq_operations atalk_seq_route_ops = { |
216 | .start = atalk_seq_route_start, |
217 | .next = atalk_seq_route_next, |
218 | .stop = atalk_seq_route_stop, |
219 | .show = atalk_seq_route_show, |
220 | }; |
221 | |
222 | static struct seq_operations atalk_seq_socket_ops = { |
223 | .start = atalk_seq_socket_start, |
224 | .next = atalk_seq_socket_next, |
225 | .stop = atalk_seq_socket_stop, |
226 | .show = atalk_seq_socket_show, |
227 | }; |
228 | |
229 | static int atalk_seq_interface_open(struct inode *inode, struct file *file) |
230 | { |
231 | return seq_open(file, &atalk_seq_interface_ops); |
232 | } |
233 | |
234 | static int atalk_seq_route_open(struct inode *inode, struct file *file) |
235 | { |
236 | return seq_open(file, &atalk_seq_route_ops); |
237 | } |
238 | |
239 | static int atalk_seq_socket_open(struct inode *inode, struct file *file) |
240 | { |
241 | return seq_open(file, &atalk_seq_socket_ops); |
242 | } |
243 | |
244 | static struct file_operations atalk_seq_interface_fops = { |
245 | .owner = THIS_MODULE, |
246 | .open = atalk_seq_interface_open, |
247 | .read = seq_read, |
248 | .llseek = seq_lseek, |
249 | .release = seq_release, |
250 | }; |
251 | |
252 | static struct file_operations atalk_seq_route_fops = { |
253 | .owner = THIS_MODULE, |
254 | .open = atalk_seq_route_open, |
255 | .read = seq_read, |
256 | .llseek = seq_lseek, |
257 | .release = seq_release, |
258 | }; |
259 | |
260 | static struct file_operations atalk_seq_socket_fops = { |
261 | .owner = THIS_MODULE, |
262 | .open = atalk_seq_socket_open, |
263 | .read = seq_read, |
264 | .llseek = seq_lseek, |
265 | .release = seq_release, |
266 | }; |
267 | |
268 | static struct proc_dir_entry *atalk_proc_dir; |
269 | |
270 | int __init atalk_proc_init(void) |
271 | { |
272 | struct proc_dir_entry *p; |
273 | int rc = -ENOMEM; |
274 | |
275 | atalk_proc_dir = proc_mkdir("atalk", proc_net); |
276 | if (!atalk_proc_dir) |
277 | goto out; |
278 | atalk_proc_dir->owner = THIS_MODULE; |
279 | |
280 | p = create_proc_entry("interface", S_IRUGO, atalk_proc_dir); |
281 | if (!p) |
282 | goto out_interface; |
283 | p->proc_fops = &atalk_seq_interface_fops; |
284 | |
285 | p = create_proc_entry("route", S_IRUGO, atalk_proc_dir); |
286 | if (!p) |
287 | goto out_route; |
288 | p->proc_fops = &atalk_seq_route_fops; |
289 | |
290 | p = create_proc_entry("socket", S_IRUGO, atalk_proc_dir); |
291 | if (!p) |
292 | goto out_socket; |
293 | p->proc_fops = &atalk_seq_socket_fops; |
294 | |
295 | p = create_proc_entry("arp", S_IRUGO, atalk_proc_dir); |
296 | if (!p) |
297 | goto out_arp; |
298 | p->proc_fops = &atalk_seq_arp_fops; |
299 | |
300 | rc = 0; |
301 | out: |
302 | return rc; |
303 | out_arp: |
304 | remove_proc_entry("socket", atalk_proc_dir); |
305 | out_socket: |
306 | remove_proc_entry("route", atalk_proc_dir); |
307 | out_route: |
308 | remove_proc_entry("interface", atalk_proc_dir); |
309 | out_interface: |
310 | remove_proc_entry("atalk", proc_net); |
311 | goto out; |
312 | } |
313 | |
314 | void __exit atalk_proc_exit(void) |
315 | { |
316 | remove_proc_entry("interface", atalk_proc_dir); |
317 | remove_proc_entry("route", atalk_proc_dir); |
318 | remove_proc_entry("socket", atalk_proc_dir); |
319 | remove_proc_entry("arp", atalk_proc_dir); |
320 | remove_proc_entry("atalk", proc_net); |
321 | } |