diff options
| author | Fan Du <fan.du@windriver.com> | 2013-10-15 22:01:30 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-10-17 15:24:44 -0400 |
| commit | 27127a82561a2a3ed955ce207048e1b066a80a2a (patch) | |
| tree | abb0407fc9c944151ddbbf8989a89a729a9c8811 /net | |
| parent | e87b3998d795123b4139bc3f25490dd236f68212 (diff) | |
| download | lwn-27127a82561a2a3ed955ce207048e1b066a80a2a.tar.gz lwn-27127a82561a2a3ed955ce207048e1b066a80a2a.zip | |
sctp: Use software crc32 checksum when xfrm transform will happen.
igb/ixgbe have hardware sctp checksum support, when this feature is enabled
and also IPsec is armed to protect sctp traffic, ugly things happened as
xfrm_output checks CHECKSUM_PARTIAL to do checksum operation(sum every thing
up and pack the 16bits result in the checksum field). The result is fail
establishment of sctp communication.
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sctp/output.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sctp/output.c b/net/sctp/output.c index 0ac3a65daccb..d35b54cb3020 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -536,7 +536,8 @@ int sctp_packet_transmit(struct sctp_packet *packet) * by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>. */ if (!sctp_checksum_disable) { - if (!(dst->dev->features & NETIF_F_SCTP_CSUM)) { + if (!(dst->dev->features & NETIF_F_SCTP_CSUM) || + (dst_xfrm(dst) != NULL)) { __u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len); /* 3) Put the resultant value into the checksum field in the |