1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * xfrm_proc.c 4 * 5 * Copyright (C)2006-2007 USAGI/WIDE Project 6 * 7 * Authors: Masahide NAKAMURA <nakam@linux-ipv6.org> 8 */ 9 #include <linux/proc_fs.h> 10 #include <linux/seq_file.h> 11 #include <linux/export.h> 12 #include <net/snmp.h> 13 #include <net/xfrm.h> 14 15 static const struct snmp_mib xfrm_mib_list[] = { 16 SNMP_MIB_ITEM("XfrmInError", LINUX_MIB_XFRMINERROR), 17 SNMP_MIB_ITEM("XfrmInBufferError", LINUX_MIB_XFRMINBUFFERERROR), 18 SNMP_MIB_ITEM("XfrmInHdrError", LINUX_MIB_XFRMINHDRERROR), 19 SNMP_MIB_ITEM("XfrmInNoStates", LINUX_MIB_XFRMINNOSTATES), 20 SNMP_MIB_ITEM("XfrmInStateProtoError", LINUX_MIB_XFRMINSTATEPROTOERROR), 21 SNMP_MIB_ITEM("XfrmInStateModeError", LINUX_MIB_XFRMINSTATEMODEERROR), 22 SNMP_MIB_ITEM("XfrmInStateSeqError", LINUX_MIB_XFRMINSTATESEQERROR), 23 SNMP_MIB_ITEM("XfrmInStateExpired", LINUX_MIB_XFRMINSTATEEXPIRED), 24 SNMP_MIB_ITEM("XfrmInStateMismatch", LINUX_MIB_XFRMINSTATEMISMATCH), 25 SNMP_MIB_ITEM("XfrmInStateInvalid", LINUX_MIB_XFRMINSTATEINVALID), 26 SNMP_MIB_ITEM("XfrmInTmplMismatch", LINUX_MIB_XFRMINTMPLMISMATCH), 27 SNMP_MIB_ITEM("XfrmInNoPols", LINUX_MIB_XFRMINNOPOLS), 28 SNMP_MIB_ITEM("XfrmInPolBlock", LINUX_MIB_XFRMINPOLBLOCK), 29 SNMP_MIB_ITEM("XfrmInPolError", LINUX_MIB_XFRMINPOLERROR), 30 SNMP_MIB_ITEM("XfrmOutError", LINUX_MIB_XFRMOUTERROR), 31 SNMP_MIB_ITEM("XfrmOutBundleGenError", LINUX_MIB_XFRMOUTBUNDLEGENERROR), 32 SNMP_MIB_ITEM("XfrmOutBundleCheckError", LINUX_MIB_XFRMOUTBUNDLECHECKERROR), 33 SNMP_MIB_ITEM("XfrmOutNoStates", LINUX_MIB_XFRMOUTNOSTATES), 34 SNMP_MIB_ITEM("XfrmOutStateProtoError", LINUX_MIB_XFRMOUTSTATEPROTOERROR), 35 SNMP_MIB_ITEM("XfrmOutStateModeError", LINUX_MIB_XFRMOUTSTATEMODEERROR), 36 SNMP_MIB_ITEM("XfrmOutStateSeqError", LINUX_MIB_XFRMOUTSTATESEQERROR), 37 SNMP_MIB_ITEM("XfrmOutStateExpired", LINUX_MIB_XFRMOUTSTATEEXPIRED), 38 SNMP_MIB_ITEM("XfrmOutPolBlock", LINUX_MIB_XFRMOUTPOLBLOCK), 39 SNMP_MIB_ITEM("XfrmOutPolDead", LINUX_MIB_XFRMOUTPOLDEAD), 40 SNMP_MIB_ITEM("XfrmOutPolError", LINUX_MIB_XFRMOUTPOLERROR), 41 SNMP_MIB_ITEM("XfrmFwdHdrError", LINUX_MIB_XFRMFWDHDRERROR), 42 SNMP_MIB_ITEM("XfrmOutStateInvalid", LINUX_MIB_XFRMOUTSTATEINVALID), 43 SNMP_MIB_ITEM("XfrmAcquireError", LINUX_MIB_XFRMACQUIREERROR), 44 SNMP_MIB_ITEM("XfrmOutStateDirError", LINUX_MIB_XFRMOUTSTATEDIRERROR), 45 SNMP_MIB_ITEM("XfrmInStateDirError", LINUX_MIB_XFRMINSTATEDIRERROR), 46 SNMP_MIB_SENTINEL 47 }; 48 49 static int xfrm_statistics_seq_show(struct seq_file *seq, void *v) 50 { 51 unsigned long buff[LINUX_MIB_XFRMMAX]; 52 struct net *net = seq->private; 53 int i; 54 55 memset(buff, 0, sizeof(unsigned long) * LINUX_MIB_XFRMMAX); 56 57 xfrm_state_update_stats(net); 58 snmp_get_cpu_field_batch(buff, xfrm_mib_list, 59 net->mib.xfrm_statistics); 60 for (i = 0; xfrm_mib_list[i].name; i++) 61 seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name, 62 buff[i]); 63 64 return 0; 65 } 66 67 int __net_init xfrm_proc_init(struct net *net) 68 { 69 if (!proc_create_net_single("xfrm_stat", 0444, net->proc_net, 70 xfrm_statistics_seq_show, NULL)) 71 return -ENOMEM; 72 return 0; 73 } 74 75 void xfrm_proc_fini(struct net *net) 76 { 77 remove_proc_entry("xfrm_stat", net->proc_net); 78 } 79