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13#include <linux/proc_fs.h>
14#include <linux/seq_file.h>
15#include <net/snmp.h>
16#include <net/xfrm.h>
17
18static const 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),
25 SNMP_MIB_ITEM("XfrmInStateSeqError", LINUX_MIB_XFRMINSTATESEQERROR),
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),
39 SNMP_MIB_ITEM("XfrmOutStateSeqError", LINUX_MIB_XFRMOUTSTATESEQERROR),
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_ITEM("XfrmFwdHdrError", LINUX_MIB_XFRMFWDHDRERROR),
45 SNMP_MIB_SENTINEL
46};
47
48static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
49{
50 struct net *net = seq->private;
51 int i;
52 for (i=0; xfrm_mib_list[i].name; i++)
53 seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name,
54 snmp_fold_field((void __percpu **)
55 net->mib.xfrm_statistics,
56 xfrm_mib_list[i].entry));
57 return 0;
58}
59
60static int xfrm_statistics_seq_open(struct inode *inode, struct file *file)
61{
62 return single_open_net(inode, file, xfrm_statistics_seq_show);
63}
64
65static const struct file_operations xfrm_statistics_seq_fops = {
66 .owner = THIS_MODULE,
67 .open = xfrm_statistics_seq_open,
68 .read = seq_read,
69 .llseek = seq_lseek,
70 .release = single_release_net,
71};
72
73int __net_init xfrm_proc_init(struct net *net)
74{
75 if (!proc_net_fops_create(net, "xfrm_stat", S_IRUGO,
76 &xfrm_statistics_seq_fops))
77 return -ENOMEM;
78 return 0;
79}
80
81void xfrm_proc_fini(struct net *net)
82{
83 proc_net_remove(net, "xfrm_stat");
84}
85