tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
19static 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
51static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
52{
53 unsigned long buff[LINUX_MIB_XFRMMAX];
54 struct net *net = seq->private;
55 int i;
56
57 memset(buff, 0, sizeof(unsigned long) * LINUX_MIB_XFRMMAX);
58
59 snmp_get_cpu_field_batch(buff, xfrm_mib_list,
60 net->mib.xfrm_statistics);
61 for (i = 0; xfrm_mib_list[i].name; i++)
62 seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name,
63 buff[i]);
64
65 return 0;
66}
67
68static int xfrm_statistics_seq_open(struct inode *inode, struct file *file)
69{
70 return single_open_net(inode, file, xfrm_statistics_seq_show);
71}
72
73static const struct file_operations xfrm_statistics_seq_fops = {
74 .owner = THIS_MODULE,
75 .open = xfrm_statistics_seq_open,
76 .read = seq_read,
77 .llseek = seq_lseek,
78 .release = single_release_net,
79};
80
81int __net_init xfrm_proc_init(struct net *net)
82{
83 if (!proc_create("xfrm_stat", S_IRUGO, net->proc_net,
84 &xfrm_statistics_seq_fops))
85 return -ENOMEM;
86 return 0;
87}
88
89void xfrm_proc_fini(struct net *net)
90{
91 remove_proc_entry("xfrm_stat", net->proc_net);
92}