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; | |
82 | struct net_device *dev; | |
83 | const char *devname; | |
84 | ||
85 | if (v == SEQ_START_TOKEN) { | |
86 | seq_printf(seq, "dest_addr src_addr dev lci st vs vr " | |
87 | "va t t2 t21 t22 t23 Snd-Q Rcv-Q inode\n"); | |
88 | goto out; | |
89 | } | |
90 | ||
32d2e3a1 | 91 | s = sk_entry(v); |
1da177e4 LT |
92 | x25 = x25_sk(s); |
93 | ||
94 | if (!x25->neighbour || (dev = x25->neighbour->dev) == NULL) | |
95 | devname = "???"; | |
96 | else | |
97 | devname = x25->neighbour->dev->name; | |
98 | ||
99 | seq_printf(seq, "%-10s %-10s %-5s %3.3X %d %d %d %d %3lu %3lu " | |
100 | "%3lu %3lu %3lu %5d %5d %ld\n", | |
101 | !x25->dest_addr.x25_addr[0] ? "*" : x25->dest_addr.x25_addr, | |
102 | !x25->source_addr.x25_addr[0] ? "*" : x25->source_addr.x25_addr, | |
103 | devname, x25->lci & 0x0FFF, x25->state, x25->vs, x25->vr, | |
104 | x25->va, x25_display_timer(s) / HZ, x25->t2 / HZ, | |
105 | x25->t21 / HZ, x25->t22 / HZ, x25->t23 / HZ, | |
31e6d363 ED |
106 | sk_wmem_alloc_get(s), |
107 | sk_rmem_alloc_get(s), | |
1da177e4 LT |
108 | s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L); |
109 | out: | |
110 | return 0; | |
f8e1d201 | 111 | } |
1da177e4 | 112 | |
c9c2e9dc | 113 | static void *x25_seq_forward_start(struct seq_file *seq, loff_t *pos) |
6bf1574e | 114 | __acquires(x25_forward_list_lock) |
c9c2e9dc | 115 | { |
c9c2e9dc | 116 | read_lock_bh(&x25_forward_list_lock); |
4f134204 | 117 | return seq_list_start_head(&x25_forward_list, *pos); |
c9c2e9dc AH |
118 | } |
119 | ||
120 | static void *x25_seq_forward_next(struct seq_file *seq, void *v, loff_t *pos) | |
121 | { | |
4f134204 | 122 | return seq_list_next(v, &x25_forward_list, pos); |
c9c2e9dc AH |
123 | } |
124 | ||
125 | static void x25_seq_forward_stop(struct seq_file *seq, void *v) | |
6bf1574e | 126 | __releases(x25_forward_list_lock) |
c9c2e9dc AH |
127 | { |
128 | read_unlock_bh(&x25_forward_list_lock); | |
129 | } | |
130 | ||
131 | static int x25_seq_forward_show(struct seq_file *seq, void *v) | |
132 | { | |
4f134204 | 133 | struct x25_forward *f = list_entry(v, struct x25_forward, node); |
c9c2e9dc | 134 | |
4f134204 | 135 | if (v == &x25_forward_list) { |
c9c2e9dc AH |
136 | seq_printf(seq, "lci dev1 dev2\n"); |
137 | goto out; | |
138 | } | |
139 | ||
140 | f = v; | |
141 | ||
142 | seq_printf(seq, "%d %-10s %-10s\n", | |
143 | f->lci, f->dev1->name, f->dev2->name); | |
c9c2e9dc AH |
144 | out: |
145 | return 0; | |
146 | } | |
147 | ||
56b3d975 | 148 | static const struct seq_operations x25_seq_route_ops = { |
1da177e4 LT |
149 | .start = x25_seq_route_start, |
150 | .next = x25_seq_route_next, | |
151 | .stop = x25_seq_route_stop, | |
152 | .show = x25_seq_route_show, | |
153 | }; | |
154 | ||
56b3d975 | 155 | static const struct seq_operations x25_seq_socket_ops = { |
1da177e4 LT |
156 | .start = x25_seq_socket_start, |
157 | .next = x25_seq_socket_next, | |
158 | .stop = x25_seq_socket_stop, | |
159 | .show = x25_seq_socket_show, | |
160 | }; | |
161 | ||
56b3d975 | 162 | static const struct seq_operations x25_seq_forward_ops = { |
c9c2e9dc AH |
163 | .start = x25_seq_forward_start, |
164 | .next = x25_seq_forward_next, | |
165 | .stop = x25_seq_forward_stop, | |
166 | .show = x25_seq_forward_show, | |
167 | }; | |
168 | ||
1da177e4 LT |
169 | int __init x25_proc_init(void) |
170 | { | |
345566bd AV |
171 | if (!proc_mkdir("x25", init_net.proc_net)) |
172 | return -ENOMEM; | |
1da177e4 | 173 | |
fddda2b7 CH |
174 | if (!proc_create_seq("x25/route", 0444, init_net.proc_net, |
175 | &x25_seq_route_ops)) | |
1da177e4 LT |
176 | goto out; |
177 | ||
fddda2b7 CH |
178 | if (!proc_create_seq("x25/socket", 0444, init_net.proc_net, |
179 | &x25_seq_socket_ops)) | |
345566bd | 180 | goto out; |
c9c2e9dc | 181 | |
fddda2b7 CH |
182 | if (!proc_create_seq("x25/forward", 0444, init_net.proc_net, |
183 | &x25_seq_forward_ops)) | |
345566bd AV |
184 | goto out; |
185 | return 0; | |
c9c2e9dc | 186 | |
1da177e4 | 187 | out: |
345566bd AV |
188 | remove_proc_subtree("x25", init_net.proc_net); |
189 | return -ENOMEM; | |
1da177e4 LT |
190 | } |
191 | ||
192 | void __exit x25_proc_exit(void) | |
193 | { | |
345566bd | 194 | remove_proc_subtree("x25", init_net.proc_net); |
1da177e4 LT |
195 | } |
196 | ||
197 | #else /* CONFIG_PROC_FS */ | |
198 | ||
199 | int __init x25_proc_init(void) | |
200 | { | |
201 | return 0; | |
202 | } | |
203 | ||
204 | void __exit x25_proc_exit(void) | |
205 | { | |
206 | } | |
207 | #endif /* CONFIG_PROC_FS */ |