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Pablo Neira Ayuso a992ca2a04 netfilter: nf_conntrack_tstamp: add flow-based timestamp extension ... This patch adds flow-based timestamping for conntracks. This conntrack extension is disabled by default. Basically, we use two 64-bits variables to store the creation timestamp once the conntrack has been confirmed and the other to store the deletion time. This extension is disabled by default, to enable it, you have to: echo 1 > /proc/sys/net/netfilter/nf_conntrack_timestamp This patch allows to save memory for user-space flow-based loogers such as ulogd2. In short, ulogd2 does not need to keep a hashtable with the conntrack in user-space to know when they were created and destroyed, instead we use the kernel timestamp. If we want to have a sane IPFIX implementation in user-space, this nanosecs resolution timestamps are also useful. Other custom user-space applications can benefit from this via libnetfilter_conntrack. This patch modifies the /proc output to display the delta time in seconds since the flow start. You can also obtain the flow-start date by means of the conntrack-tools. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>		14 years ago
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conntrack.h	netfilter: nf_conntrack_tstamp: add flow-based timestamp extension	14 years ago
core.h	percpu: add __percpu sparse annotations to net	15 years ago
dccp.h	…
generic.h	netns: let net_generic take pointer-to-const args	14 years ago
hash.h	…
ip_vs.h	IPVS: netns, svc counters moved in ip_vs_ctl,c	14 years ago
ipv4.h	netfilter: nf_conntrack: use is_vmalloc_addr()	14 years ago
ipv6.h	ipv6: ip6mr: support multiple tables	15 years ago
mib.h	…
packet.h	packet: convert socket list to RCU (v3)	15 years ago
unix.h	…
x_tables.h	…
xfrm.h	netns: reorder fields in struct net	15 years ago