[PATCH 2/2] Netfilter: xt_LOG: Add timestamp support
From: Richard Weinberger <richard@nod.at>
Date: 2012-02-14 23:37:04
Also in:
lkml, netfilter-devel
Subsystem:
netfilter, networking [general], the rest · Maintainers:
Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Using XT_LOG_ADD_TIMESTAMP it is possible to have a timestamp directly in the log message. Signed-off-by: Richard Weinberger <richard@nod.at> --- include/linux/netfilter/xt_LOG.h | 1 + net/netfilter/xt_LOG.c | 10 ++++++++++ 2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/include/linux/netfilter/xt_LOG.h b/include/linux/netfilter/xt_LOG.h
index e4b1177..d84710c 100644
--- a/include/linux/netfilter/xt_LOG.h
+++ b/include/linux/netfilter/xt_LOG.h@@ -8,6 +8,7 @@ #define XT_LOG_UID 0x08 /* Log UID owning local socket */ #define XT_LOG_NFLOG 0x10 /* Unsupported, don't reuse */ #define XT_LOG_MACDECODE 0x20 /* Decode MAC header */ +#define XT_LOG_ADD_TIMESTAMP 0x40 /* Add a timestamp */ #define XT_LOG_MASK 0x6f struct xt_log_info {
diff --git a/net/netfilter/xt_LOG.c b/net/netfilter/xt_LOG.c
index 211d341..bd59dfd 100644
--- a/net/netfilter/xt_LOG.c
+++ b/net/netfilter/xt_LOG.c@@ -490,6 +490,16 @@ log_packet_common(struct sbuff *m, if (loginfo->type == NF_LOG_TYPE_LOG) sb_add(m, "<%d>", loginfo->u.log.level); + if (loginfo->u.log.logflags & XT_LOG_ADD_TIMESTAMP) { + static struct timespec tv; + unsigned int msec; + + getnstimeofday(&tv); + msec = tv.tv_nsec; + do_div(msec, 1000000); + sb_add(m, "TIMESTAMP=%li.%03li ", tv.tv_sec, msec); + } + sb_add(m, "%sIN=%s OUT=%s ", prefix, in ? in->name : "", out ? out->name : ""); #ifdef CONFIG_BRIDGE_NETFILTER
--
1.7.7.3