nfsd4: typo logical vs bitwise negate for want_mask
[linux-btrfs-devel.git] / net / appletalk / atalk_proc.c
blob6ef0e761e5de28d40cdf43559271e19b4e132a1f
1 /*
2 * atalk_proc.c - proc support for Appletalk
4 * Copyright(c) Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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 */
11 #include <linux/init.h>
12 #include <linux/proc_fs.h>
13 #include <linux/seq_file.h>
14 #include <net/net_namespace.h>
15 #include <net/sock.h>
16 #include <linux/atalk.h>
19 static __inline__ struct atalk_iface *atalk_get_interface_idx(loff_t pos)
21 struct atalk_iface *i;
23 for (i = atalk_interfaces; pos && i; i = i->next)
24 --pos;
26 return i;
29 static void *atalk_seq_interface_start(struct seq_file *seq, loff_t *pos)
30 __acquires(atalk_interfaces_lock)
32 loff_t l = *pos;
34 read_lock_bh(&atalk_interfaces_lock);
35 return l ? atalk_get_interface_idx(--l) : SEQ_START_TOKEN;
38 static void *atalk_seq_interface_next(struct seq_file *seq, void *v, loff_t *pos)
40 struct atalk_iface *i;
42 ++*pos;
43 if (v == SEQ_START_TOKEN) {
44 i = NULL;
45 if (atalk_interfaces)
46 i = atalk_interfaces;
47 goto out;
49 i = v;
50 i = i->next;
51 out:
52 return i;
55 static void atalk_seq_interface_stop(struct seq_file *seq, void *v)
56 __releases(atalk_interfaces_lock)
58 read_unlock_bh(&atalk_interfaces_lock);
61 static int atalk_seq_interface_show(struct seq_file *seq, void *v)
63 struct atalk_iface *iface;
65 if (v == SEQ_START_TOKEN) {
66 seq_puts(seq, "Interface Address Networks "
67 "Status\n");
68 goto out;
71 iface = v;
72 seq_printf(seq, "%-16s %04X:%02X %04X-%04X %d\n",
73 iface->dev->name, ntohs(iface->address.s_net),
74 iface->address.s_node, ntohs(iface->nets.nr_firstnet),
75 ntohs(iface->nets.nr_lastnet), iface->status);
76 out:
77 return 0;
80 static __inline__ struct atalk_route *atalk_get_route_idx(loff_t pos)
82 struct atalk_route *r;
84 for (r = atalk_routes; pos && r; r = r->next)
85 --pos;
87 return r;
90 static void *atalk_seq_route_start(struct seq_file *seq, loff_t *pos)
91 __acquires(atalk_routes_lock)
93 loff_t l = *pos;
95 read_lock_bh(&atalk_routes_lock);
96 return l ? atalk_get_route_idx(--l) : SEQ_START_TOKEN;
99 static void *atalk_seq_route_next(struct seq_file *seq, void *v, loff_t *pos)
101 struct atalk_route *r;
103 ++*pos;
104 if (v == SEQ_START_TOKEN) {
105 r = NULL;
106 if (atalk_routes)
107 r = atalk_routes;
108 goto out;
110 r = v;
111 r = r->next;
112 out:
113 return r;
116 static void atalk_seq_route_stop(struct seq_file *seq, void *v)
117 __releases(atalk_routes_lock)
119 read_unlock_bh(&atalk_routes_lock);
122 static int atalk_seq_route_show(struct seq_file *seq, void *v)
124 struct atalk_route *rt;
126 if (v == SEQ_START_TOKEN) {
127 seq_puts(seq, "Target Router Flags Dev\n");
128 goto out;
131 if (atrtr_default.dev) {
132 rt = &atrtr_default;
133 seq_printf(seq, "Default %04X:%02X %-4d %s\n",
134 ntohs(rt->gateway.s_net), rt->gateway.s_node,
135 rt->flags, rt->dev->name);
138 rt = v;
139 seq_printf(seq, "%04X:%02X %04X:%02X %-4d %s\n",
140 ntohs(rt->target.s_net), rt->target.s_node,
141 ntohs(rt->gateway.s_net), rt->gateway.s_node,
142 rt->flags, rt->dev->name);
143 out:
144 return 0;
147 static void *atalk_seq_socket_start(struct seq_file *seq, loff_t *pos)
148 __acquires(atalk_sockets_lock)
150 read_lock_bh(&atalk_sockets_lock);
151 return seq_hlist_start_head(&atalk_sockets, *pos);
154 static void *atalk_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos)
156 return seq_hlist_next(v, &atalk_sockets, pos);
159 static void atalk_seq_socket_stop(struct seq_file *seq, void *v)
160 __releases(atalk_sockets_lock)
162 read_unlock_bh(&atalk_sockets_lock);
165 static int atalk_seq_socket_show(struct seq_file *seq, void *v)
167 struct sock *s;
168 struct atalk_sock *at;
170 if (v == SEQ_START_TOKEN) {
171 seq_printf(seq, "Type Local_addr Remote_addr Tx_queue "
172 "Rx_queue St UID\n");
173 goto out;
176 s = sk_entry(v);
177 at = at_sk(s);
179 seq_printf(seq, "%02X %04X:%02X:%02X %04X:%02X:%02X %08X:%08X "
180 "%02X %d\n",
181 s->sk_type, ntohs(at->src_net), at->src_node, at->src_port,
182 ntohs(at->dest_net), at->dest_node, at->dest_port,
183 sk_wmem_alloc_get(s),
184 sk_rmem_alloc_get(s),
185 s->sk_state, SOCK_INODE(s->sk_socket)->i_uid);
186 out:
187 return 0;
190 static const struct seq_operations atalk_seq_interface_ops = {
191 .start = atalk_seq_interface_start,
192 .next = atalk_seq_interface_next,
193 .stop = atalk_seq_interface_stop,
194 .show = atalk_seq_interface_show,
197 static const struct seq_operations atalk_seq_route_ops = {
198 .start = atalk_seq_route_start,
199 .next = atalk_seq_route_next,
200 .stop = atalk_seq_route_stop,
201 .show = atalk_seq_route_show,
204 static const struct seq_operations atalk_seq_socket_ops = {
205 .start = atalk_seq_socket_start,
206 .next = atalk_seq_socket_next,
207 .stop = atalk_seq_socket_stop,
208 .show = atalk_seq_socket_show,
211 static int atalk_seq_interface_open(struct inode *inode, struct file *file)
213 return seq_open(file, &atalk_seq_interface_ops);
216 static int atalk_seq_route_open(struct inode *inode, struct file *file)
218 return seq_open(file, &atalk_seq_route_ops);
221 static int atalk_seq_socket_open(struct inode *inode, struct file *file)
223 return seq_open(file, &atalk_seq_socket_ops);
226 static const struct file_operations atalk_seq_interface_fops = {
227 .owner = THIS_MODULE,
228 .open = atalk_seq_interface_open,
229 .read = seq_read,
230 .llseek = seq_lseek,
231 .release = seq_release,
234 static const struct file_operations atalk_seq_route_fops = {
235 .owner = THIS_MODULE,
236 .open = atalk_seq_route_open,
237 .read = seq_read,
238 .llseek = seq_lseek,
239 .release = seq_release,
242 static const struct file_operations atalk_seq_socket_fops = {
243 .owner = THIS_MODULE,
244 .open = atalk_seq_socket_open,
245 .read = seq_read,
246 .llseek = seq_lseek,
247 .release = seq_release,
250 static struct proc_dir_entry *atalk_proc_dir;
252 int __init atalk_proc_init(void)
254 struct proc_dir_entry *p;
255 int rc = -ENOMEM;
257 atalk_proc_dir = proc_mkdir("atalk", init_net.proc_net);
258 if (!atalk_proc_dir)
259 goto out;
261 p = proc_create("interface", S_IRUGO, atalk_proc_dir,
262 &atalk_seq_interface_fops);
263 if (!p)
264 goto out_interface;
266 p = proc_create("route", S_IRUGO, atalk_proc_dir,
267 &atalk_seq_route_fops);
268 if (!p)
269 goto out_route;
271 p = proc_create("socket", S_IRUGO, atalk_proc_dir,
272 &atalk_seq_socket_fops);
273 if (!p)
274 goto out_socket;
276 p = proc_create("arp", S_IRUGO, atalk_proc_dir, &atalk_seq_arp_fops);
277 if (!p)
278 goto out_arp;
280 rc = 0;
281 out:
282 return rc;
283 out_arp:
284 remove_proc_entry("socket", atalk_proc_dir);
285 out_socket:
286 remove_proc_entry("route", atalk_proc_dir);
287 out_route:
288 remove_proc_entry("interface", atalk_proc_dir);
289 out_interface:
290 remove_proc_entry("atalk", init_net.proc_net);
291 goto out;
294 void __exit atalk_proc_exit(void)
296 remove_proc_entry("interface", atalk_proc_dir);
297 remove_proc_entry("route", atalk_proc_dir);
298 remove_proc_entry("socket", atalk_proc_dir);
299 remove_proc_entry("arp", atalk_proc_dir);
300 remove_proc_entry("atalk", init_net.proc_net);