Revision 916f6efae62305796e012e7c3a7884a267cbacbf authored by Florian Westphal on 17 April 2019, 00:17:23 UTC, committed by Pablo Neira Ayuso on 22 April 2019, 08:34:30 UTC
setting net.netfilter.nf_conntrack_timestamp=1 breaks xmit with fq
scheduler.  skb->tstamp might be "refreshed" using ktime_get_real(),
but fq expects CLOCK_MONOTONIC.

This patch removes all places in netfilter that check/set skb->tstamp:

1. To fix the bogus "start" time seen with conntrack timestamping for
   outgoing packets, never use skb->tstamp and always use current time.
2. In nfqueue and nflog, only use skb->tstamp for incoming packets,
   as determined by current hook (prerouting, input, forward).
3. xt_time has to use system clock as well rather than skb->tstamp.
   We could still use skb->tstamp for prerouting/input/foward, but
   I see no advantage to make this conditional.

Fixes: fb420d5d91c1 ("tcp/fq: move back to CLOCK_MONOTONIC")
Cc: Eric Dumazet <edumazet@google.com>
Reported-by: Michal Soltys <soltys@ziu.info>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
1 parent 7caa56f
History
File Mode Size
Kconfig -rw-r--r-- 4.1 KB
Makefile -rw-r--r-- 774 bytes
font_10x18.c -rw-r--r-- 140.6 KB
font_6x10.c -rw-r--r-- 60.8 KB
font_6x11.c -rw-r--r-- 66.6 KB
font_7x14.c -rw-r--r-- 79.3 KB
font_8x16.c -rw-r--r-- 93.9 KB
font_8x8.c -rw-r--r-- 49.9 KB
font_acorn_8x8.c -rw-r--r-- 15.7 KB
font_mini_4x6.c -rw-r--r-- 54.6 KB
font_pearl_8x8.c -rw-r--r-- 54.6 KB
font_sun12x22.c -rw-r--r-- 181.5 KB
font_sun8x16.c -rw-r--r-- 22.1 KB
font_ter16x32.c -rw-r--r-- 100.8 KB
fonts.c -rw-r--r-- 3.1 KB

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