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