Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * NET4: Sysctl interface to net af_unix subsystem. | |
3 | * | |
4 | * Authors: Mike Shaver. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/mm.h> | |
13 | #include <linux/sysctl.h> | |
14 | ||
20380731 | 15 | #include <net/af_unix.h> |
1da177e4 LT |
16 | |
17 | static ctl_table unix_table[] = { | |
18 | { | |
1da177e4 | 19 | .procname = "max_dgram_qlen", |
a0a53c8b | 20 | .data = &init_net.unx.sysctl_max_dgram_qlen, |
1da177e4 LT |
21 | .maxlen = sizeof(int), |
22 | .mode = 0644, | |
6d9f239a | 23 | .proc_handler = proc_dointvec |
1da177e4 | 24 | }, |
f8572d8f | 25 | { } |
1da177e4 LT |
26 | }; |
27 | ||
1d430b91 | 28 | static struct ctl_path unix_path[] = { |
f8572d8f EB |
29 | { .procname = "net", }, |
30 | { .procname = "unix", }, | |
1d430b91 | 31 | { }, |
1da177e4 LT |
32 | }; |
33 | ||
97577e38 | 34 | int unix_sysctl_register(struct net *net) |
1da177e4 | 35 | { |
1597fbc0 PE |
36 | struct ctl_table *table; |
37 | ||
38 | table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL); | |
39 | if (table == NULL) | |
40 | goto err_alloc; | |
41 | ||
a0a53c8b DL |
42 | table[0].data = &net->unx.sysctl_max_dgram_qlen; |
43 | net->unx.ctl = register_net_sysctl_table(net, unix_path, table); | |
44 | if (net->unx.ctl == NULL) | |
1597fbc0 PE |
45 | goto err_reg; |
46 | ||
47 | return 0; | |
48 | ||
49 | err_reg: | |
50 | kfree(table); | |
51 | err_alloc: | |
52 | return -ENOMEM; | |
1da177e4 LT |
53 | } |
54 | ||
97577e38 | 55 | void unix_sysctl_unregister(struct net *net) |
1da177e4 | 56 | { |
1597fbc0 PE |
57 | struct ctl_table *table; |
58 | ||
a0a53c8b DL |
59 | table = net->unx.ctl->ctl_table_arg; |
60 | unregister_sysctl_table(net->unx.ctl); | |
1597fbc0 | 61 | kfree(table); |
1da177e4 | 62 | } |