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authorLorenz Bauer <lmb@cloudflare.com>2019-12-13 18:08:17 +0000
committerAlexei Starovoitov <ast@kernel.org>2019-12-13 15:21:48 -0800
commit5133498f4ad1123a5ffd4c08df6431dab882cc32 (patch)
treeb0e929d19f4151527a372183668f42662bd72390 /net
parent0af67e49b018e7280a4227bfe7b6005bc9d3e442 (diff)
bpf: Clear skb->tstamp in bpf_redirect when necessary
Redirecting a packet from ingress to egress by using bpf_redirect breaks if the egress interface has an fq qdisc installed. This is the same problem as fixed in 'commit 8203e2d844d3 ("net: clear skb->tstamp in forwarding paths") Clear skb->tstamp when redirecting into the egress path. Fixes: 80b14dee2bea ("net: Add a new socket option for a future transmit time.") Fixes: fb420d5d91c1 ("tcp/fq: move back to CLOCK_MONOTONIC") Signed-off-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/bpf/20191213180817.2510-1-lmb@cloudflare.com
Diffstat (limited to 'net')
-rw-r--r--net/core/filter.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index f1e703eed3d2..d914257763b5 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2055,6 +2055,7 @@ static inline int __bpf_tx_skb(struct net_device *dev, struct sk_buff *skb)
}
skb->dev = dev;
+ skb->tstamp = 0;
dev_xmit_recursion_inc();
ret = dev_queue_xmit(skb);