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 19 static 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 51 static 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 68 static 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 73 static 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 81 int __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 89 void xfrm_proc_fini(struct net *net) 90 { 91 remove_proc_entry("xfrm_stat", net->proc_net); 92 } 93