packet: make packet_snd fail on len smaller than l2 header

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When sending packets out with PF_PACKET, SOCK_RAW, ensure that the
packet is at least as long as the device's expected link layer header.
This check already exists in tpacket_snd, but not in packet_snd.
Also rate limit the warning in tpacket_snd.

Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Willem de Bruijn 2014-11-19 13:10:16 -05:00 • committed by David S. Miller

parent df6ce47091

commit 9c7077622d

1 changed files with 21 additions and 8 deletions

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net/packet/af_packet.c

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