ip_tunnels: Use skb-len to PMTU check.

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In path mtu check, ip header total length works for gre device
but not for gre-tap device.  Use skb len which is consistent
for all tunneling types.  This is old bug in gre.
This also fixes mtu calculation bug introduced by
commit c544193214 (GRE: Refactor GRE tunneling code).

Reported-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Pravin B Shelar 2013-07-02 10:57:33 -07:00 • committed by David S. Miller

parent 784771e74b

commit 23a3647bc4

1 changed files with 55 additions and 44 deletions

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net/ipv4/ip_tunnel.c

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