diff options
Diffstat (limited to 'net/ipv4/fou.c')
| -rw-r--r-- | net/ipv4/fou.c | 47 |
1 files changed, 37 insertions, 10 deletions
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c index 6cbc725..f4f2ddd 100644 --- a/net/ipv4/fou.c +++ b/net/ipv4/fou.c @@ -780,6 +780,22 @@ static void fou_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e, *protocol = IPPROTO_UDP; } +int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, + u8 *protocol, __be16 *sport, int type) +{ + int err; + + err = iptunnel_handle_offloads(skb, type); + if (err) + return err; + + *sport = e->sport ? : udp_flow_src_port(dev_net(skb->dev), + skb, 0, 0, false); + + return 0; +} +EXPORT_SYMBOL(__fou_build_header); + int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, u8 *protocol, struct flowi4 *fl4) { @@ -788,26 +804,21 @@ int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, __be16 sport; int err; - err = iptunnel_handle_offloads(skb, type); + err = __fou_build_header(skb, e, protocol, &sport, type); if (err) return err; - sport = e->sport ? : udp_flow_src_port(dev_net(skb->dev), - skb, 0, 0, false); fou_build_udp(skb, e, fl4, protocol, sport); return 0; } EXPORT_SYMBOL(fou_build_header); -int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, - u8 *protocol, struct flowi4 *fl4) +int __gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, + u8 *protocol, __be16 *sport, int type) { - int type = e->flags & TUNNEL_ENCAP_FLAG_CSUM ? SKB_GSO_UDP_TUNNEL_CSUM : - SKB_GSO_UDP_TUNNEL; struct guehdr *guehdr; size_t hdrlen, optlen = 0; - __be16 sport; void *data; bool need_priv = false; int err; @@ -826,8 +837,8 @@ int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, return err; /* Get source port (based on flow hash) before skb_push */ - sport = e->sport ? : udp_flow_src_port(dev_net(skb->dev), - skb, 0, 0, false); + *sport = e->sport ? : udp_flow_src_port(dev_net(skb->dev), + skb, 0, 0, false); hdrlen = sizeof(struct guehdr) + optlen; @@ -872,6 +883,22 @@ int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, } + return 0; +} +EXPORT_SYMBOL(__gue_build_header); + +int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, + u8 *protocol, struct flowi4 *fl4) +{ + int type = e->flags & TUNNEL_ENCAP_FLAG_CSUM ? SKB_GSO_UDP_TUNNEL_CSUM : + SKB_GSO_UDP_TUNNEL; + __be16 sport; + int err; + + err = __gue_build_header(skb, e, protocol, &sport, type); + if (err) + return err; + fou_build_udp(skb, e, fl4, protocol, sport); return 0; |