diff options
| author | Fan Du <fan.du@windriver.com> | 2013-10-15 22:01:30 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-11-04 04:31:04 -0800 |
| commit | 935be1dc2cafe04f1421e236f75d17878920631b (patch) | |
| tree | 702f589f7e6f06c913ec3c3486c4987af4b38c3d /net | |
| parent | c9446ff691aca0ca902f31f7a9830ac725841759 (diff) | |
| download | linux-3.10-935be1dc2cafe04f1421e236f75d17878920631b.tar.gz linux-3.10-935be1dc2cafe04f1421e236f75d17878920631b.tar.bz2 linux-3.10-935be1dc2cafe04f1421e236f75d17878920631b.zip | |
sctp: Use software crc32 checksum when xfrm transform will happen.
[ Upstream commit 27127a82561a2a3ed955ce207048e1b066a80a2a ]
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.
Signed-off-by: Fan Du <fan.du@windriver.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Steffen Klassert <steffen.klassert@secunet.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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 bbef4a7a9b5..a1884399c04 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -547,7 +547,8 @@ 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 |