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 18 static 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 48 static 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 60 static 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 65 static 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 73 int __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 81 void xfrm_proc_fini(struct net *net) 82 { 83 proc_net_remove(net, "xfrm_stat"); 84 } 85