path: root/include/uapi
diff options
authorAhmed Abdelsalam <amsalam20@gmail.com>2017-11-15 15:34:23 +0100
committerDavid S. Miller <davem@davemloft.net>2017-11-16 10:49:00 +0900
commit6ab6a0dd228220bd00d745f8eb8ca497e522f4b6 (patch)
tree69b84d83f82f46b9f3da46a3821edca2367414bc /include/uapi
parenthv_netvsc: preserve hw_features on mtu/channels/ringparam changes (diff)
ipv6: sr: update the struct ipv6_sr_hdr
The IPv6 Segment Routing Header (SRH) format has been updated (revision 6 of the SRH ietf draft). The update includes the following SRH fields: (1) The "First Segment" field changed to be "Last Entry" which contains the index, in the Segment List, of the last element of the Segment List. (2) The 16 bit "reserved" field now is used as a "tag" which tags a packet as part of a class or group of packets, e.g.,packets sharing the same set of properties. This patch updates the struct ipv6_sr_hdr, so it complies with the updated SRH draft. The 16 bit "reserved" field is changed to be "tag", In addition a comment is added to the "first_segment" field, showing that it represents the "Last Entry" field of the SRH. Signed-off-by: Ahmed Abdelsalam <amsalam20@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
1 files changed, 2 insertions, 2 deletions
diff --git a/include/uapi/linux/seg6.h b/include/uapi/linux/seg6.h
index 2f6fb0dd613c..286e8d6a8e98 100644
--- a/include/uapi/linux/seg6.h
+++ b/include/uapi/linux/seg6.h
@@ -26,9 +26,9 @@ struct ipv6_sr_hdr {
__u8 hdrlen;
__u8 type;
__u8 segments_left;
- __u8 first_segment;
+ __u8 first_segment; /* Represents the last_entry field of SRH */
__u8 flags;
- __u16 reserved;
+ __u16 tag;
struct in6_addr segments[0];