diff options
| author | Amir Vadai <amir@vadai.me> | 2016-09-08 15:23:46 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-11 05:53:55 +0200 |
| commit | 2ff378b7474feac1ec665d01e4dfc6907cccc11c (patch) | |
| tree | 277b1c4fe95bbd8a5427eb09b69b6b47d6ec5188 /include/net/dst_metadata.h | |
| parent | net/ip_tunnels: Introduce tunnel_id_to_key32() and key32_to_tunnel_id() (diff) | |
| download | linux-2ff378b7474feac1ec665d01e4dfc6907cccc11c.tar.xz linux-2ff378b7474feac1ec665d01e4dfc6907cccc11c.zip | |
net/dst: Utility functions to build dst_metadata without supplying an skb
Extract __ip_tun_set_dst() and __ipv6_tun_set_dst() out of
ip_tun_rx_dst() and ipv6_tun_rx_dst(), to be used without supplying an
skb.
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | include/net/dst_metadata.h | 52 |
1 files changed, 39 insertions, 13 deletions
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h index 5db9f5910428..6965c8f68ade 100644 --- a/include/net/dst_metadata.h +++ b/include/net/dst_metadata.h @@ -112,12 +112,13 @@ static inline struct ip_tunnel_info *skb_tunnel_info_unclone(struct sk_buff *skb return &dst->u.tun_info; } -static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb, - __be16 flags, - __be64 tunnel_id, - int md_size) +static inline struct metadata_dst *__ip_tun_set_dst(__be32 saddr, + __be32 daddr, + __u8 tos, __u8 ttl, + __be16 flags, + __be64 tunnel_id, + int md_size) { - const struct iphdr *iph = ip_hdr(skb); struct metadata_dst *tun_dst; tun_dst = tun_rx_dst(md_size); @@ -125,17 +126,30 @@ static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb, return NULL; ip_tunnel_key_init(&tun_dst->u.tun_info.key, - iph->saddr, iph->daddr, iph->tos, iph->ttl, + saddr, daddr, tos, ttl, 0, 0, 0, tunnel_id, flags); return tun_dst; } -static inline struct metadata_dst *ipv6_tun_rx_dst(struct sk_buff *skb, +static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb, __be16 flags, __be64 tunnel_id, int md_size) { - const struct ipv6hdr *ip6h = ipv6_hdr(skb); + const struct iphdr *iph = ip_hdr(skb); + + return __ip_tun_set_dst(iph->saddr, iph->daddr, iph->tos, iph->ttl, + flags, tunnel_id, md_size); +} + +static inline struct metadata_dst *__ipv6_tun_set_dst(const struct in6_addr *saddr, + const struct in6_addr *daddr, + __u8 tos, __u8 ttl, + __be32 label, + __be16 flags, + __be64 tunnel_id, + int md_size) +{ struct metadata_dst *tun_dst; struct ip_tunnel_info *info; @@ -150,14 +164,26 @@ static inline struct metadata_dst *ipv6_tun_rx_dst(struct sk_buff *skb, info->key.tp_src = 0; info->key.tp_dst = 0; - info->key.u.ipv6.src = ip6h->saddr; - info->key.u.ipv6.dst = ip6h->daddr; + info->key.u.ipv6.src = *saddr; + info->key.u.ipv6.dst = *daddr; - info->key.tos = ipv6_get_dsfield(ip6h); - info->key.ttl = ip6h->hop_limit; - info->key.label = ip6_flowlabel(ip6h); + info->key.tos = tos; + info->key.ttl = ttl; + info->key.label = label; return tun_dst; } +static inline struct metadata_dst *ipv6_tun_rx_dst(struct sk_buff *skb, + __be16 flags, + __be64 tunnel_id, + int md_size) +{ + const struct ipv6hdr *ip6h = ipv6_hdr(skb); + + return __ipv6_tun_set_dst(&ip6h->saddr, &ip6h->daddr, + ipv6_get_dsfield(ip6h), ip6h->hop_limit, + ip6_flowlabel(ip6h), flags, tunnel_id, + md_size); +} #endif /* __NET_DST_METADATA_H */ |