Commit | Line | Data |
---|---|---|
ee5d8f4d | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * X.25 Packet Layer release 002 | |
4 | * | |
5 | * This is ALPHA test software. This code may break your machine, | |
6 | * randomly fail to work with new releases, misbehave and/or generally | |
f8e1d201 | 7 | * screw up. It might even work. |
1da177e4 LT |
8 | * |
9 | * This code REQUIRES 2.4 with seq_file support | |
10 | * | |
1da177e4 LT |
11 | * History |
12 | * 2002/10/06 Arnaldo Carvalho de Melo seq_file support | |
13 | */ | |
14 | ||
1da177e4 LT |
15 | #include <linux/init.h> |
16 | #include <linux/proc_fs.h> | |
17 | #include <linux/seq_file.h> | |
bc3b2d7f | 18 | #include <linux/export.h> |
457c4cbc | 19 | #include <net/net_namespace.h> |
1da177e4 LT |
20 | #include <net/sock.h> |
21 | #include <net/x25.h> | |
22 | ||
23 | #ifdef CONFIG_PROC_FS | |
1da177e4 LT |
24 | |
25 | static void *x25_seq_route_start(struct seq_file *seq, loff_t *pos) | |
6bf1574e | 26 | __acquires(x25_route_list_lock) |
1da177e4 | 27 | { |
1da177e4 | 28 | read_lock_bh(&x25_route_list_lock); |
4f134204 | 29 | return seq_list_start_head(&x25_route_list, *pos); |
1da177e4 LT |
30 | } |
31 | ||
32 | static void *x25_seq_route_next(struct seq_file *seq, void *v, loff_t *pos) | |
33 | { | |
4f134204 | 34 | return seq_list_next(v, &x25_route_list, pos); |
1da177e4 LT |
35 | } |
36 | ||
37 | static void x25_seq_route_stop(struct seq_file *seq, void *v) | |
6bf1574e | 38 | __releases(x25_route_list_lock) |
1da177e4 LT |
39 | { |
40 | read_unlock_bh(&x25_route_list_lock); | |
41 | } | |
42 | ||
43 | static int x25_seq_route_show(struct seq_file *seq, void *v) | |
44 | { | |
4f134204 | 45 | struct x25_route *rt = list_entry(v, struct x25_route, node); |
1da177e4 | 46 | |
4f134204 | 47 | if (v == &x25_route_list) { |
1da177e4 LT |
48 | seq_puts(seq, "Address Digits Device\n"); |
49 | goto out; | |
50 | } | |
51 | ||
52 | rt = v; | |
53 | seq_printf(seq, "%-15s %-6d %-5s\n", | |
54 | rt->address.x25_addr, rt->sigdigits, | |
55 | rt->dev ? rt->dev->name : "???"); | |
56 | out: | |
57 | return 0; | |
f8e1d201 | 58 | } |
1da177e4 | 59 | |
1da177e4 | 60 | static void *x25_seq_socket_start(struct seq_file *seq, loff_t *pos) |
6bf1574e | 61 | __acquires(x25_list_lock) |
1da177e4 | 62 | { |
1da177e4 | 63 | read_lock_bh(&x25_list_lock); |
32d2e3a1 | 64 | return seq_hlist_start_head(&x25_list, *pos); |
1da177e4 LT |
65 | } |
66 | ||
67 | static void *x25_seq_socket_next(struct seq_file *seq, void *v, loff_t *pos) | |
68 | { | |
32d2e3a1 | 69 | return seq_hlist_next(v, &x25_list, pos); |
1da177e4 LT |
70 | } |
71 | ||
72 | static void x25_seq_socket_stop(struct seq_file *seq, void *v) | |
6bf1574e | 73 | __releases(x25_list_lock) |
1da177e4 LT |
74 | { |
75 | read_unlock_bh(&x25_list_lock); | |
76 | } | |
77 | ||
78 | static int x25_seq_socket_show(struct seq_file *seq, void *v) | |
79 | { | |
80 | struct sock *s; | |
81 | struct x25_sock *x25; | |
1da177e4 LT |
82 | const char *devname; |
83 | ||
84 | if (v == SEQ_START_TOKEN) { | |
85 | seq_printf(seq, "dest_addr src_addr dev lci st vs vr " | |
86 | "va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n"); | |
87 | goto out; | |
88 | } | |
89 | ||
32d2e3a1 | 90 | s = sk_entry(v); |
1da177e4 LT |
91 | x25 = x25_sk(s); |
92 | ||
ecd17a87 | 93 | if (!x25->neighbour || !x25->neighbour->dev) |
1da177e4 LT |
94 | devname = "???"; |
95 | else | |
96 | devname = x25->neighbour->dev->name; | |
97 | ||
98 | seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu " | |
99 | "%3lu %3lu %3lu %5d %5d %ld\n", | |
100 | !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr, | |
101 | !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr, | |
102 | devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr, | |
103 | x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ, | |
104 | x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ, | |
31e6d363 ED |
105 | sk_wmem_alloc_get(s), |
106 | sk_rmem_alloc_get(s), | |
1da177e4 LT |
107 | s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L); |
108 | out: | |
109 | return 0; | |
f8e1d201 | 110 | } |
1da177e4 | 111 | |
c9c2e9dc | 112 | static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos) |
6bf1574e | 113 | __acquires(x25_forward_list_lock) |
c9c2e9dc | 114 | { |
c9c2e9dc | 115 | read_lock_bh(&x25_forward_list_lock); |
4f134204 | 116 | return seq_list_start_head(&x25_forward_list, *pos); |
c9c2e9dc AH |
117 | } |
118 | ||
119 | static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos) | |
120 | { | |
4f134204 | 121 | return seq_list_next(v, &x25_forward_list, pos); |
c9c2e9dc AH |
122 | } |
123 | ||
124 | static void x25_seq_forward_stop(struct seq_file *seq, void *v) | |
6bf1574e | 125 | __releases(x25_forward_list_lock) |
c9c2e9dc AH |
126 | { |
127 | read_unlock_bh(&x25_forward_list_lock); | |
128 | } | |
129 | ||
130 | static int x25_seq_forward_show(struct seq_file *seq, void *v) | |
131 | { | |
4f134204 | 132 | struct x25_forward *f = list_entry(v, struct x25_forward, node); |
c9c2e9dc | 133 | |
4f134204 | 134 | if (v == &x25_forward_list) { |
c9c2e9dc AH |
135 | seq_printf(seq, "lci dev1 dev2\n"); |
136 | goto out; | |
137 | } | |
138 | ||
139 | f = v; | |
140 | ||
141 | seq_printf(seq, "%d %-10s %-10s\n", | |
142 | f->lci, f->dev1->name, f->dev2->name); | |
c9c2e9dc AH |
143 | out: |
144 | return 0; | |
145 | } | |
146 | ||
56b3d975 | 147 | static const struct seq_operations x25_seq_route_ops = { |
1da177e4 LT |
148 | .start = x25_seq_route_start, |
149 | .next = x25_seq_route_next, | |
150 | .stop = x25_seq_route_stop, | |
151 | .show = x25_seq_route_show, | |
152 | }; | |
153 | ||
56b3d975 | 154 | static const struct seq_operations x25_seq_socket_ops = { |
1da177e4 LT |
155 | .start = x25_seq_socket_start, |
156 | .next = x25_seq_socket_next, | |
157 | .stop = x25_seq_socket_stop, | |
158 | .show = x25_seq_socket_show, | |
159 | }; | |
160 | ||
56b3d975 | 161 | static const struct seq_operations x25_seq_forward_ops = { |
c9c2e9dc AH |
162 | .start = x25_seq_forward_start, |
163 | .next = x25_seq_forward_next, | |
164 | .stop = x25_seq_forward_stop, | |
165 | .show = x25_seq_forward_show, | |
166 | }; | |
167 | ||
1da177e4 LT |
168 | int __init x25_proc_init(void) |
169 | { | |
345566bd AV |
170 | if (!proc_mkdir("x25", init_net.proc_net)) |
171 | return -ENOMEM; | |
1da177e4 | 172 | |
fddda2b7 CH |
173 | if (!proc_create_seq("x25/route", 0444, init_net.proc_net, |
174 | &x25_seq_route_ops)) | |
1da177e4 LT |
175 | goto out; |
176 | ||
fddda2b7 CH |
177 | if (!proc_create_seq("x25/socket", 0444, init_net.proc_net, |
178 | &x25_seq_socket_ops)) | |
345566bd | 179 | goto out; |
c9c2e9dc | 180 | |
fddda2b7 CH |
181 | if (!proc_create_seq("x25/forward", 0444, init_net.proc_net, |
182 | &x25_seq_forward_ops)) | |
345566bd AV |
183 | goto out; |
184 | return 0; | |
c9c2e9dc | 185 | |
1da177e4 | 186 | out: |
345566bd AV |
187 | remove_proc_subtree("x25", init_net.proc_net); |
188 | return -ENOMEM; | |
1da177e4 LT |
189 | } |
190 | ||
191 | void __exit x25_proc_exit(void) | |
192 | { | |
345566bd | 193 | remove_proc_subtree("x25", init_net.proc_net); |
1da177e4 LT |
194 | } |
195 | ||
196 | #else /* CONFIG_PROC_FS */ | |
197 | ||
198 | int __init x25_proc_init(void) | |
199 | { | |
200 | return 0; | |
201 | } | |
202 | ||
203 | void __exit x25_proc_exit(void) | |
204 | { | |
205 | } | |
206 | #endif /* CONFIG_PROC_FS */ |