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openvswitch: Add SCTP support

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This patch adds support for rewriting SCTP src,dst ports similar to the
functionality already available for TCP/UDP.

Rewriting SCTP ports is expensive due to double-recalculation of the
SCTP checksums; this is performed to ensure that packets traversing OVS
with invalid checksums will continue to the destination with any
checksum corruption intact.

Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: Joe Stringer <[email protected]>
Signed-off-by: Ben Pfaff <[email protected]>
Signed-off-by: Jesse Gross <[email protected]>
This commit is contained in:
Joe Stringer authored and Jesse Gross committed 2013-08-26 14:03:13 -07:00
1 parent 280c571e1a
commit a175a72330
6 files changed
+121 -4
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include/uapi/linux/openvswitch.h
+6
View File
@@ -259,6 +259,7 @@ enum ovs_key_attr {
OVS_KEY_ATTR_ND, /* struct ovs_key_nd */
OVS_KEY_ATTR_SKB_MARK, /* u32 skb mark */
OVS_KEY_ATTR_TUNNEL, /* Nested set of ovs_tunnel attributes */
OVS_KEY_ATTR_SCTP, /* struct ovs_key_sctp */
#ifdef __KERNEL__
OVS_KEY_ATTR_IPV4_TUNNEL, /* struct ovs_key_ipv4_tunnel */
@@ -333,6 +334,11 @@ struct ovs_key_udp {
__be16 udp_dst;
};
struct ovs_key_sctp {
__be16 sctp_src;
__be16 sctp_dst;
};
struct ovs_key_icmp {
__u8 icmp_type;
__u8 icmp_code;