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gerrit-public.fairphone.software / kernel / msm-4.9 / 3a581349b961f225893103a0fbbd065a831c5184 / . / net / xfrm / xfrm_proc.c
blob: 2b0db13f0cda681c9482e86a97a51cf6f9f660d4 [file] [log] [blame]
Masahide NAKAMURA558f82e2007-12-20 20:42:57 -0800[diff] [blame]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 <net/snmp.h>
16#include <net/xfrm.h>
17
18static struct snmp_mib xfrm_mib_list[] = {
19 SNMP_MIB_ITEM("XfrmInError", LINUX_MIB_XFRMINERROR),
20 SNMP_MIB_ITEM("XfrmInBufferError", LINUX_MIB_XFRMINBUFFERERROR),
21 SNMP_MIB_ITEM("XfrmInHdrError", LINUX_MIB_XFRMINHDRERROR),
22 SNMP_MIB_ITEM("XfrmInNoStates", LINUX_MIB_XFRMINNOSTATES),
23 SNMP_MIB_ITEM("XfrmInStateProtoError", LINUX_MIB_XFRMINSTATEPROTOERROR),
24 SNMP_MIB_ITEM("XfrmInStateModeError", LINUX_MIB_XFRMINSTATEMODEERROR),
Masahide NAKAMURA9472c9e2008-01-31 17:14:58 -0800[diff] [blame]25 SNMP_MIB_ITEM("XfrmInStateSeqError", LINUX_MIB_XFRMINSTATESEQERROR),
Masahide NAKAMURA558f82e2007-12-20 20:42:57 -0800[diff] [blame]26 SNMP_MIB_ITEM("XfrmInStateExpired", LINUX_MIB_XFRMINSTATEEXPIRED),
27 SNMP_MIB_ITEM("XfrmInStateMismatch", LINUX_MIB_XFRMINSTATEMISMATCH),
28 SNMP_MIB_ITEM("XfrmInStateInvalid", LINUX_MIB_XFRMINSTATEINVALID),
29 SNMP_MIB_ITEM("XfrmInTmplMismatch", LINUX_MIB_XFRMINTMPLMISMATCH),
30 SNMP_MIB_ITEM("XfrmInNoPols", LINUX_MIB_XFRMINNOPOLS),
31 SNMP_MIB_ITEM("XfrmInPolBlock", LINUX_MIB_XFRMINPOLBLOCK),
32 SNMP_MIB_ITEM("XfrmInPolError", LINUX_MIB_XFRMINPOLERROR),
33 SNMP_MIB_ITEM("XfrmOutError", LINUX_MIB_XFRMOUTERROR),
34 SNMP_MIB_ITEM("XfrmOutBundleGenError", LINUX_MIB_XFRMOUTBUNDLEGENERROR),
35 SNMP_MIB_ITEM("XfrmOutBundleCheckError", LINUX_MIB_XFRMOUTBUNDLECHECKERROR),
36 SNMP_MIB_ITEM("XfrmOutNoStates", LINUX_MIB_XFRMOUTNOSTATES),
37 SNMP_MIB_ITEM("XfrmOutStateProtoError", LINUX_MIB_XFRMOUTSTATEPROTOERROR),
38 SNMP_MIB_ITEM("XfrmOutStateModeError", LINUX_MIB_XFRMOUTSTATEMODEERROR),
Masahide NAKAMURA9472c9e2008-01-31 17:14:58 -0800[diff] [blame]39 SNMP_MIB_ITEM("XfrmOutStateSeqError", LINUX_MIB_XFRMOUTSTATESEQERROR),
Masahide NAKAMURA558f82e2007-12-20 20:42:57 -0800[diff] [blame]40 SNMP_MIB_ITEM("XfrmOutStateExpired", LINUX_MIB_XFRMOUTSTATEEXPIRED),
41 SNMP_MIB_ITEM("XfrmOutPolBlock", LINUX_MIB_XFRMOUTPOLBLOCK),
42 SNMP_MIB_ITEM("XfrmOutPolDead", LINUX_MIB_XFRMOUTPOLDEAD),
43 SNMP_MIB_ITEM("XfrmOutPolError", LINUX_MIB_XFRMOUTPOLERROR),
44 SNMP_MIB_SENTINEL
45};
46
47static unsigned long
48fold_field(void *mib[], int offt)
49{
50 unsigned long res = 0;
51 int i;
52
53 for_each_possible_cpu(i) {
54 res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt);
55 res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt);
56 }
57 return res;
58}
59
60static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
61{
62 int i;
63 for (i=0; xfrm_mib_list[i].name; i++)
64 seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name,
65 fold_field((void **)xfrm_statistics,
66 xfrm_mib_list[i].entry));
67 return 0;
68}
69
70static int xfrm_statistics_seq_open(struct inode *inode, struct file *file)
71{
72 return single_open(file, xfrm_statistics_seq_show, NULL);
73}
74
75static struct file_operations xfrm_statistics_seq_fops = {
76 .owner = THIS_MODULE,
77 .open = xfrm_statistics_seq_open,
78 .read = seq_read,
79 .llseek = seq_lseek,
80 .release = single_release,
81};
82
83int __init xfrm_proc_init(void)
84{
85 int rc = 0;
86
87 if (!proc_net_fops_create(&init_net, "xfrm_stat", S_IRUGO,
88 &xfrm_statistics_seq_fops))
89 goto stat_fail;
90
91 out:
92 return rc;
93
94 stat_fail:
95 rc = -ENOMEM;
96 goto out;
97}