inet: frags: fix defragmented packet's IP header for af_packet

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When ip_frag_queue() computes positions, it assumes that the passed
sk_buff does not contain L2 headers.

However, when PACKET_FANOUT_FLAG_DEFRAG is used, IP reassembly
functions can be called on outgoing packets that contain L2 headers.

Also, IPv4 checksum is not corrected after reassembly.

Fixes: 7736d33f42 ("packet: Add pre-defragmentation support for ipv4 fanouts.")
Signed-off-by: Edward Hyunkoo Jee <edjee@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Jerry Chu <hkchu@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Edward Hyunkoo Jee 2015-07-21 09:43:59 +02:00 • committed by David S. Miller

parent a84e328941

commit 0848f6428b

1 changed files with 4 additions and 2 deletions

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net/ipv4/ip_fragment.c

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