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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/slab.h> |
14 | #include <linux/sysctl.h> |
15 | |
16 | #include <net/af_unix.h> |
17 | |
18 | static ctl_table unix_table[] = { |
19 | { |
20 | .procname = "max_dgram_qlen", |
21 | .data = &init_net.unx.sysctl_max_dgram_qlen, |
22 | .maxlen = sizeof(int), |
23 | .mode = 0644, |
24 | .proc_handler = proc_dointvec |
25 | }, |
26 | { } |
27 | }; |
28 | |
29 | static struct ctl_path unix_path[] = { |
30 | { .procname = "net", }, |
31 | { .procname = "unix", }, |
32 | { }, |
33 | }; |
34 | |
35 | int __net_init unix_sysctl_register(struct net *net) |
36 | { |
37 | struct ctl_table *table; |
38 | |
39 | table = kmemdup(unix_table, sizeof(unix_table), GFP_KERNEL); |
40 | if (table == NULL) |
41 | goto err_alloc; |
42 | |
43 | table[0].data = &net->unx.sysctl_max_dgram_qlen; |
44 | net->unx.ctl = register_net_sysctl_table(net, unix_path, table); |
45 | if (net->unx.ctl == NULL) |
46 | goto err_reg; |
47 | |
48 | return 0; |
49 | |
50 | err_reg: |
51 | kfree(table); |
52 | err_alloc: |
53 | return -ENOMEM; |
54 | } |
55 | |
56 | void unix_sysctl_unregister(struct net *net) |
57 | { |
58 | struct ctl_table *table; |
59 | |
60 | table = net->unx.ctl->ctl_table_arg; |
61 | unregister_sysctl_table(net->unx.ctl); |
62 | kfree(table); |
63 | } |
64 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
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v3.9