diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/xfrm/Makefile | 1 | ||||
| -rw-r--r-- | net/xfrm/xfrm_policy.c | 24 | ||||
| -rw-r--r-- | net/xfrm/xfrm_proc.c | 96 |
3 files changed, 121 insertions, 0 deletions
diff --git a/net/xfrm/Makefile b/net/xfrm/Makefile index 45744a3d3a5..332cfb0ff56 100644 --- a/net/xfrm/Makefile +++ b/net/xfrm/Makefile @@ -4,5 +4,6 @@ obj-$(CONFIG_XFRM) := xfrm_policy.o xfrm_state.o xfrm_hash.o \ xfrm_input.o xfrm_output.o xfrm_algo.o +obj-$(CONFIG_XFRM_STATISTICS) += xfrm_proc.o obj-$(CONFIG_XFRM_USER) += xfrm_user.o diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 521cb6e1256..32ddb7b12e7 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -27,11 +27,19 @@ #include <net/dst.h> #include <net/xfrm.h> #include <net/ip.h> +#ifdef CONFIG_XFRM_STATISTICS +#include <net/snmp.h> +#endif #include "xfrm_hash.h" int sysctl_xfrm_larval_drop __read_mostly; +#ifdef CONFIG_XFRM_STATISTICS +DEFINE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics) __read_mostly; +EXPORT_SYMBOL(xfrm_statistics); +#endif + DEFINE_MUTEX(xfrm_cfg_mutex); EXPORT_SYMBOL(xfrm_cfg_mutex); @@ -2258,6 +2266,16 @@ static struct notifier_block xfrm_dev_notifier = { 0 }; +#ifdef CONFIG_XFRM_STATISTICS +static int __init xfrm_statistics_init(void) +{ + if (snmp_mib_init((void **)xfrm_statistics, + sizeof(struct linux_xfrm_mib)) < 0) + return -ENOMEM; + return 0; +} +#endif + static void __init xfrm_policy_init(void) { unsigned int hmask, sz; @@ -2294,9 +2312,15 @@ static void __init xfrm_policy_init(void) void __init xfrm_init(void) { +#ifdef CONFIG_XFRM_STATISTICS + xfrm_statistics_init(); +#endif xfrm_state_init(); xfrm_policy_init(); xfrm_input_init(); +#ifdef CONFIG_XFRM_STATISTICS + xfrm_proc_init(); +#endif } #ifdef CONFIG_AUDITSYSCALL diff --git a/net/xfrm/xfrm_proc.c b/net/xfrm/xfrm_proc.c new file mode 100644 index 00000000000..31d035415ec --- /dev/null +++ b/net/xfrm/xfrm_proc.c @@ -0,0 +1,96 @@ +/* + * 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 <net/snmp.h> +#include <net/xfrm.h> + +static 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("XfrmInSeqOutOfWindow", LINUX_MIB_XFRMINSEQOUTOFWINDOW), + 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("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_SENTINEL +}; + +static unsigned long +fold_field(void *mib[], int offt) +{ + unsigned long res = 0; + int i; + + for_each_possible_cpu(i) { + res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt); + res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt); + } + return res; +} + +static int xfrm_statistics_seq_show(struct seq_file *seq, void *v) +{ + int i; + for (i=0; xfrm_mib_list[i].name; i++) + seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name, + fold_field((void **)xfrm_statistics, + xfrm_mib_list[i].entry)); + return 0; +} + +static int xfrm_statistics_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, xfrm_statistics_seq_show, NULL); +} + +static struct file_operations xfrm_statistics_seq_fops = { + .owner = THIS_MODULE, + .open = xfrm_statistics_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +int __init xfrm_proc_init(void) +{ + int rc = 0; + + if (!proc_net_fops_create(&init_net, "xfrm_stat", S_IRUGO, + &xfrm_statistics_seq_fops)) + goto stat_fail; + + out: + return rc; + + stat_fail: + rc = -ENOMEM; + goto out; +} |