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authorDaniel Borkmann <daniel@iogearbox.net>2016-03-09 05:00:02 +0300
committerDavid S. Miller <davem@davemloft.net>2016-03-11 23:14:26 +0300
commit134611446dc657e1bbc73ca0e4e6b599df687db0 (patch)
tree4a737866a24d8f515b09acda069ab422fe28344b /net/ipv6
parente327f4e193b6a176f4dc3b19faf6371a8917588d (diff)
downloadlinux-134611446dc657e1bbc73ca0e4e6b599df687db0.tar.xz
ip_tunnel: add support for setting flow label via collect metadata
This patch extends udp_tunnel6_xmit_skb() to pass in the IPv6 flow label from call sites. Currently, there's no such option and it's always set to zero when writing ip6_flow_hdr(). Add a label member to ip_tunnel_key, so that flow-based tunnels via collect metadata frontends can make use of it. vxlan and geneve will be converted to add flow label support separately. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_udp_tunnel.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv6/ip6_udp_tunnel.c b/net/ipv6/ip6_udp_tunnel.c
index 14dacf1df529..a7520528ecd2 100644
--- a/net/ipv6/ip6_udp_tunnel.c
+++ b/net/ipv6/ip6_udp_tunnel.c
@@ -73,8 +73,8 @@ int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sock *sk,
struct sk_buff *skb,
struct net_device *dev, struct in6_addr *saddr,
struct in6_addr *daddr,
- __u8 prio, __u8 ttl, __be16 src_port,
- __be16 dst_port, bool nocheck)
+ __u8 prio, __u8 ttl, __be32 label,
+ __be16 src_port, __be16 dst_port, bool nocheck)
{
struct udphdr *uh;
struct ipv6hdr *ip6h;
@@ -98,7 +98,7 @@ int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sock *sk,
__skb_push(skb, sizeof(*ip6h));
skb_reset_network_header(skb);
ip6h = ipv6_hdr(skb);
- ip6_flow_hdr(ip6h, prio, htonl(0));
+ ip6_flow_hdr(ip6h, prio, label);
ip6h->payload_len = htons(skb->len);
ip6h->nexthdr = IPPROTO_UDP;
ip6h->hop_limit = ttl;