Eric Lee / smarc-fsl-linux-kernel

Blame view

net/xfrm/xfrm_proc.c 3.37 KB
edit raw normal view history
81f7e3824   Eric Lee   Initial Release, ... 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
 
  /*
   * xfrm_proc.c
   *
   * Copyright (C)2006-2007 USAGI/WIDE Project
   *
   * Authors:	Masahide NAKAMURA <nakam@linux-ipv6.org>
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version
   * 2 of the License, or (at your option) any later version.
   */
  #include <linux/proc_fs.h>
  #include <linux/seq_file.h>
  #include <linux/export.h>
  #include <net/snmp.h>
  #include <net/xfrm.h>
  
  static const struct snmp_mib xfrm_mib_list[] = {
  	SNMP_MIB_ITEM("XfrmInError", LINUX_MIB_XFRMINERROR),
  	SNMP_MIB_ITEM("XfrmInBufferError", LINUX_MIB_XFRMINBUFFERERROR),
  	SNMP_MIB_ITEM("XfrmInHdrError", LINUX_MIB_XFRMINHDRERROR),
  	SNMP_MIB_ITEM("XfrmInNoStates", LINUX_MIB_XFRMINNOSTATES),
  	SNMP_MIB_ITEM("XfrmInStateProtoError", LINUX_MIB_XFRMINSTATEPROTOERROR),
  	SNMP_MIB_ITEM("XfrmInStateModeError", LINUX_MIB_XFRMINSTATEMODEERROR),
  	SNMP_MIB_ITEM("XfrmInStateSeqError", LINUX_MIB_XFRMINSTATESEQERROR),
  	SNMP_MIB_ITEM("XfrmInStateExpired", LINUX_MIB_XFRMINSTATEEXPIRED),
  	SNMP_MIB_ITEM("XfrmInStateMismatch", LINUX_MIB_XFRMINSTATEMISMATCH),
  	SNMP_MIB_ITEM("XfrmInStateInvalid", LINUX_MIB_XFRMINSTATEINVALID),
  	SNMP_MIB_ITEM("XfrmInTmplMismatch", LINUX_MIB_XFRMINTMPLMISMATCH),
  	SNMP_MIB_ITEM("XfrmInNoPols", LINUX_MIB_XFRMINNOPOLS),
  	SNMP_MIB_ITEM("XfrmInPolBlock", LINUX_MIB_XFRMINPOLBLOCK),
  	SNMP_MIB_ITEM("XfrmInPolError", LINUX_MIB_XFRMINPOLERROR),
  	SNMP_MIB_ITEM("XfrmOutError", LINUX_MIB_XFRMOUTERROR),
  	SNMP_MIB_ITEM("XfrmOutBundleGenError", LINUX_MIB_XFRMOUTBUNDLEGENERROR),
  	SNMP_MIB_ITEM("XfrmOutBundleCheckError", LINUX_MIB_XFRMOUTBUNDLECHECKERROR),
  	SNMP_MIB_ITEM("XfrmOutNoStates", LINUX_MIB_XFRMOUTNOSTATES),
  	SNMP_MIB_ITEM("XfrmOutStateProtoError", LINUX_MIB_XFRMOUTSTATEPROTOERROR),
  	SNMP_MIB_ITEM("XfrmOutStateModeError", LINUX_MIB_XFRMOUTSTATEMODEERROR),
  	SNMP_MIB_ITEM("XfrmOutStateSeqError", LINUX_MIB_XFRMOUTSTATESEQERROR),
  	SNMP_MIB_ITEM("XfrmOutStateExpired", LINUX_MIB_XFRMOUTSTATEEXPIRED),
  	SNMP_MIB_ITEM("XfrmOutPolBlock", LINUX_MIB_XFRMOUTPOLBLOCK),
  	SNMP_MIB_ITEM("XfrmOutPolDead", LINUX_MIB_XFRMOUTPOLDEAD),
  	SNMP_MIB_ITEM("XfrmOutPolError", LINUX_MIB_XFRMOUTPOLERROR),
  	SNMP_MIB_ITEM("XfrmFwdHdrError", LINUX_MIB_XFRMFWDHDRERROR),
  	SNMP_MIB_ITEM("XfrmOutStateInvalid", LINUX_MIB_XFRMOUTSTATEINVALID),
  	SNMP_MIB_ITEM("XfrmAcquireError", LINUX_MIB_XFRMACQUIREERROR),
  	SNMP_MIB_SENTINEL
  };
  
  static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
  {
  	unsigned long buff[LINUX_MIB_XFRMMAX];
  	struct net *net = seq->private;
  	int i;
  
  	memset(buff, 0, sizeof(unsigned long) * LINUX_MIB_XFRMMAX);
  
  	snmp_get_cpu_field_batch(buff, xfrm_mib_list,
  				 net->mib.xfrm_statistics);
  	for (i = 0; xfrm_mib_list[i].name; i++)
  		seq_printf(seq, "%-24s\t%lu
  ", xfrm_mib_list[i].name,
  						buff[i]);
  
  	return 0;
  }
  
  static int xfrm_statistics_seq_open(struct inode *inode, struct file *file)
  {
  	return single_open_net(inode, file, xfrm_statistics_seq_show);
  }
  
  static const struct file_operations xfrm_statistics_seq_fops = {
  	.owner	 = THIS_MODULE,
  	.open	 = xfrm_statistics_seq_open,
  	.read	 = seq_read,
  	.llseek	 = seq_lseek,
  	.release = single_release_net,
  };
  
  int __net_init xfrm_proc_init(struct net *net)
  {
  	if (!proc_create("xfrm_stat", S_IRUGO, net->proc_net,
  			 &xfrm_statistics_seq_fops))
  		return -ENOMEM;
  	return 0;
  }
  
  void xfrm_proc_fini(struct net *net)
  {
  	remove_proc_entry("xfrm_stat", net->proc_net);
  }