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b27aeadb AD |
1 | #include <linux/sysctl.h> |
2 | #include <net/net_namespace.h> | |
3 | #include <net/xfrm.h> | |
4 | ||
5 | static void __xfrm_sysctl_init(struct net *net) | |
6 | { | |
7 | net->xfrm.sysctl_aevent_etime = XFRM_AE_ETIME; | |
8 | net->xfrm.sysctl_aevent_rseqth = XFRM_AE_SEQT_SIZE; | |
9 | net->xfrm.sysctl_larval_drop = 1; | |
10 | net->xfrm.sysctl_acq_expires = 30; | |
11 | } | |
12 | ||
13 | #ifdef CONFIG_SYSCTL | |
14 | static struct ctl_table xfrm_table[] = { | |
15 | { | |
16 | .ctl_name = NET_CORE_AEVENT_ETIME, | |
17 | .procname = "xfrm_aevent_etime", | |
18 | .maxlen = sizeof(u32), | |
19 | .mode = 0644, | |
20 | .proc_handler = proc_dointvec | |
21 | }, | |
22 | { | |
23 | .ctl_name = NET_CORE_AEVENT_RSEQTH, | |
24 | .procname = "xfrm_aevent_rseqth", | |
25 | .maxlen = sizeof(u32), | |
26 | .mode = 0644, | |
27 | .proc_handler = proc_dointvec | |
28 | }, | |
29 | { | |
30 | .ctl_name = CTL_UNNUMBERED, | |
31 | .procname = "xfrm_larval_drop", | |
32 | .maxlen = sizeof(int), | |
33 | .mode = 0644, | |
34 | .proc_handler = proc_dointvec | |
35 | }, | |
36 | { | |
37 | .ctl_name = CTL_UNNUMBERED, | |
38 | .procname = "xfrm_acq_expires", | |
39 | .maxlen = sizeof(int), | |
40 | .mode = 0644, | |
41 | .proc_handler = proc_dointvec | |
42 | }, | |
43 | {} | |
44 | }; | |
45 | ||
46 | int __net_init xfrm_sysctl_init(struct net *net) | |
47 | { | |
48 | struct ctl_table *table; | |
49 | ||
50 | __xfrm_sysctl_init(net); | |
51 | ||
52 | table = kmemdup(xfrm_table, sizeof(xfrm_table), GFP_KERNEL); | |
53 | if (!table) | |
54 | goto out_kmemdup; | |
55 | table[0].data = &net->xfrm.sysctl_aevent_etime; | |
56 | table[1].data = &net->xfrm.sysctl_aevent_rseqth; | |
57 | table[2].data = &net->xfrm.sysctl_larval_drop; | |
58 | table[3].data = &net->xfrm.sysctl_acq_expires; | |
59 | ||
60 | net->xfrm.sysctl_hdr = register_net_sysctl_table(net, net_core_path, table); | |
61 | if (!net->xfrm.sysctl_hdr) | |
62 | goto out_register; | |
63 | return 0; | |
64 | ||
65 | out_register: | |
66 | kfree(table); | |
67 | out_kmemdup: | |
68 | return -ENOMEM; | |
69 | } | |
70 | ||
71 | void xfrm_sysctl_fini(struct net *net) | |
72 | { | |
73 | struct ctl_table *table; | |
74 | ||
75 | table = net->xfrm.sysctl_hdr->ctl_table_arg; | |
76 | unregister_net_sysctl_table(net->xfrm.sysctl_hdr); | |
77 | kfree(table); | |
78 | } | |
79 | #else | |
80 | int __net_init xfrm_sysctl_init(struct net *net) | |
81 | { | |
82 | __xfrm_sysctl_init(net); | |
83 | return 0; | |
84 | } | |
85 | #endif |