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1 | /* |
2 | * xfrm_proc.c |
3 | * |
4 | * Copyright (C)2006-2007 USAGI/WIDE Project |
5 | * |
6 | * Authors: Masahide NAKAMURA <nakam@linux-ipv6.org> |
7 | * |
8 | * This program is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU General Public License |
10 | * as published by the Free Software Foundation; either version |
11 | * 2 of the License, or (at your option) any later version. |
12 | */ |
13 | #include <linux/proc_fs.h> |
14 | #include <linux/seq_file.h> |
15 | #include <linux/export.h> |
16 | #include <net/snmp.h> |
17 | #include <net/xfrm.h> |
18 | |
19 | static const struct snmp_mib xfrm_mib_list[] = { |
20 | SNMP_MIB_ITEM("XfrmInError", LINUX_MIB_XFRMINERROR), |
21 | SNMP_MIB_ITEM("XfrmInBufferError", LINUX_MIB_XFRMINBUFFERERROR), |
22 | SNMP_MIB_ITEM("XfrmInHdrError", LINUX_MIB_XFRMINHDRERROR), |
23 | SNMP_MIB_ITEM("XfrmInNoStates", LINUX_MIB_XFRMINNOSTATES), |
24 | SNMP_MIB_ITEM("XfrmInStateProtoError", LINUX_MIB_XFRMINSTATEPROTOERROR), |
25 | SNMP_MIB_ITEM("XfrmInStateModeError", LINUX_MIB_XFRMINSTATEMODEERROR), |
26 | SNMP_MIB_ITEM("XfrmInStateSeqError", LINUX_MIB_XFRMINSTATESEQERROR), |
27 | SNMP_MIB_ITEM("XfrmInStateExpired", LINUX_MIB_XFRMINSTATEEXPIRED), |
28 | SNMP_MIB_ITEM("XfrmInStateMismatch", LINUX_MIB_XFRMINSTATEMISMATCH), |
29 | SNMP_MIB_ITEM("XfrmInStateInvalid", LINUX_MIB_XFRMINSTATEINVALID), |
30 | SNMP_MIB_ITEM("XfrmInTmplMismatch", LINUX_MIB_XFRMINTMPLMISMATCH), |
31 | SNMP_MIB_ITEM("XfrmInNoPols", LINUX_MIB_XFRMINNOPOLS), |
32 | SNMP_MIB_ITEM("XfrmInPolBlock", LINUX_MIB_XFRMINPOLBLOCK), |
33 | SNMP_MIB_ITEM("XfrmInPolError", LINUX_MIB_XFRMINPOLERROR), |
34 | SNMP_MIB_ITEM("XfrmOutError", LINUX_MIB_XFRMOUTERROR), |
35 | SNMP_MIB_ITEM("XfrmOutBundleGenError", LINUX_MIB_XFRMOUTBUNDLEGENERROR), |
36 | SNMP_MIB_ITEM("XfrmOutBundleCheckError", LINUX_MIB_XFRMOUTBUNDLECHECKERROR), |
37 | SNMP_MIB_ITEM("XfrmOutNoStates", LINUX_MIB_XFRMOUTNOSTATES), |
38 | SNMP_MIB_ITEM("XfrmOutStateProtoError", LINUX_MIB_XFRMOUTSTATEPROTOERROR), |
39 | SNMP_MIB_ITEM("XfrmOutStateModeError", LINUX_MIB_XFRMOUTSTATEMODEERROR), |
40 | SNMP_MIB_ITEM("XfrmOutStateSeqError", LINUX_MIB_XFRMOUTSTATESEQERROR), |
41 | SNMP_MIB_ITEM("XfrmOutStateExpired", LINUX_MIB_XFRMOUTSTATEEXPIRED), |
42 | SNMP_MIB_ITEM("XfrmOutPolBlock", LINUX_MIB_XFRMOUTPOLBLOCK), |
43 | SNMP_MIB_ITEM("XfrmOutPolDead", LINUX_MIB_XFRMOUTPOLDEAD), |
44 | SNMP_MIB_ITEM("XfrmOutPolError", LINUX_MIB_XFRMOUTPOLERROR), |
45 | SNMP_MIB_ITEM("XfrmFwdHdrError", LINUX_MIB_XFRMFWDHDRERROR), |
46 | SNMP_MIB_ITEM("XfrmOutStateInvalid", LINUX_MIB_XFRMOUTSTATEINVALID), |
47 | SNMP_MIB_ITEM("XfrmAcquireError", LINUX_MIB_XFRMACQUIREERROR), |
48 | SNMP_MIB_SENTINEL |
49 | }; |
50 | |
51 | static int xfrm_statistics_seq_show(struct seq_file *seq, void *v) |
52 | { |
53 | struct net *net = seq->private; |
54 | int i; |
55 | for (i = 0; xfrm_mib_list[i].name; i++) |
56 | seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name, |
57 | snmp_fold_field((void __percpu **) |
58 | net->mib.xfrm_statistics, |
59 | xfrm_mib_list[i].entry)); |
60 | return 0; |
61 | } |
62 | |
63 | static int xfrm_statistics_seq_open(struct inode *inode, struct file *file) |
64 | { |
65 | return single_open_net(inode, file, xfrm_statistics_seq_show); |
66 | } |
67 | |
68 | static const struct file_operations xfrm_statistics_seq_fops = { |
69 | .owner = THIS_MODULE, |
70 | .open = xfrm_statistics_seq_open, |
71 | .read = seq_read, |
72 | .llseek = seq_lseek, |
73 | .release = single_release_net, |
74 | }; |
75 | |
76 | int __net_init xfrm_proc_init(struct net *net) |
77 | { |
78 | if (!proc_create("xfrm_stat", S_IRUGO, net->proc_net, |
79 | &xfrm_statistics_seq_fops)) |
80 | return -ENOMEM; |
81 | return 0; |
82 | } |
83 | |
84 | void xfrm_proc_fini(struct net *net) |
85 | { |
86 | remove_proc_entry("xfrm_stat", net->proc_net); |
87 | } |
88 |
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