diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2016-03-09 03:00:02 +0100 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2022-04-19 00:51:37 +0300 |
| commit | 340293f93556eb2b31f4216ccf5b7ec7d145d6d7 (patch) | |
| tree | 4f082843e5dcd43db38a95be5c0c2af5329d15a2 /include/net | |
| parent | 86c651d631b89084f7bc5925c73091f8fbb0e630 (diff) | |
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>
Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/dst_metadata.h | 5 | ||||
| -rw-r--r-- | include/net/ip_tunnels.h | 4 | ||||
| -rw-r--r-- | include/net/udp_tunnel.h | 4 |
3 files changed, 9 insertions, 4 deletions
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h index 4cee368cb91c..b55d2e854bf3 100644 --- a/include/net/dst_metadata.h +++ b/include/net/dst_metadata.h @@ -127,7 +127,7 @@ static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb, ip_tunnel_key_init(&tun_dst->u.tun_info.key, iph->saddr, iph->daddr, iph->tos, iph->ttl, - 0, 0, tunnel_id, flags); + 0, 0, 0, tunnel_id, flags); return tun_dst; } @@ -153,8 +153,11 @@ static inline struct metadata_dst *ipv6_tun_rx_dst(struct sk_buff *skb, info->key.u.ipv6.src = ip6h->saddr; info->key.u.ipv6.dst = ip6h->daddr; + info->key.tos = ipv6_get_dsfield(ip6h); info->key.ttl = ip6h->hop_limit; + info->key.label = ip6_flowlabel(ip6h); + return tun_dst; } diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index 4e5fec55b7a5..3d4fb0e2a3bf 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -50,6 +50,7 @@ struct ip_tunnel_key { __be16 tun_flags; u8 tos; /* TOS for IPv4, TC for IPv6 */ u8 ttl; /* TTL for IPv4, HL for IPv6 */ + __be32 label; /* Flow Label for IPv6 */ __be16 tp_src; __be16 tp_dst; }; @@ -184,7 +185,7 @@ int ip_tunnel_encap_del_ops(const struct ip_tunnel_encap_ops *op, static inline void ip_tunnel_key_init(struct ip_tunnel_key *key, __be32 saddr, __be32 daddr, - u8 tos, u8 ttl, + u8 tos, u8 ttl, __be32 label, __be16 tp_src, __be16 tp_dst, __be64 tun_id, __be16 tun_flags) { @@ -195,6 +196,7 @@ static inline void ip_tunnel_key_init(struct ip_tunnel_key *key, 0, IP_TUNNEL_KEY_IPV4_PAD_LEN); key->tos = tos; key->ttl = ttl; + key->label = label; key->tun_flags = tun_flags; /* For the tunnel types on the top of IPsec, the tp_src and tp_dst of diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h index cb2f89f20f5c..c020d3389a21 100644 --- a/include/net/udp_tunnel.h +++ b/include/net/udp_tunnel.h @@ -88,8 +88,8 @@ 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); #endif void udp_tunnel_sock_release(struct socket *sock); |