diff options
Diffstat (limited to 'net/ipv4/fou.c')
| -rw-r--r-- | net/ipv4/fou.c | 82 |
1 files changed, 41 insertions, 41 deletions
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c index 805f6607f8d9..8e0257d01200 100644 --- a/net/ipv4/fou.c +++ b/net/ipv4/fou.c @@ -8,6 +8,7 @@ #include <linux/kernel.h> #include <net/genetlink.h> #include <net/gue.h> +#include <net/fou.h> #include <net/ip.h> #include <net/protocol.h> #include <net/udp.h> @@ -859,25 +860,6 @@ size_t gue_encap_hlen(struct ip_tunnel_encap *e) } EXPORT_SYMBOL(gue_encap_hlen); -static void fou_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e, - struct flowi4 *fl4, u8 *protocol, __be16 sport) -{ - struct udphdr *uh; - - skb_push(skb, sizeof(struct udphdr)); - skb_reset_transport_header(skb); - - uh = udp_hdr(skb); - - uh->dest = e->dport; - uh->source = sport; - uh->len = htons(skb->len); - udp_set_csum(!(e->flags & TUNNEL_ENCAP_FLAG_CSUM), skb, - fl4->saddr, fl4->daddr, skb->len); - - *protocol = IPPROTO_UDP; -} - int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, u8 *protocol, __be16 *sport, int type) { @@ -894,24 +876,6 @@ int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, } EXPORT_SYMBOL(__fou_build_header); -int fou_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 = __fou_build_header(skb, e, protocol, &sport, type); - if (err) - return err; - - 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, __be16 *sport, int type) { @@ -985,8 +949,46 @@ int __gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, } EXPORT_SYMBOL(__gue_build_header); -int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, - u8 *protocol, struct flowi4 *fl4) +#ifdef CONFIG_NET_FOU_IP_TUNNELS + +static void fou_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e, + struct flowi4 *fl4, u8 *protocol, __be16 sport) +{ + struct udphdr *uh; + + skb_push(skb, sizeof(struct udphdr)); + skb_reset_transport_header(skb); + + uh = udp_hdr(skb); + + uh->dest = e->dport; + uh->source = sport; + uh->len = htons(skb->len); + udp_set_csum(!(e->flags & TUNNEL_ENCAP_FLAG_CSUM), skb, + fl4->saddr, fl4->daddr, skb->len); + + *protocol = IPPROTO_UDP; +} + +static int fou_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 = __fou_build_header(skb, e, protocol, &sport, type); + if (err) + return err; + + fou_build_udp(skb, e, fl4, protocol, sport); + + return 0; +} + +static 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; @@ -1001,9 +1003,7 @@ int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e, return 0; } -EXPORT_SYMBOL(gue_build_header); -#ifdef CONFIG_NET_FOU_IP_TUNNELS static const struct ip_tunnel_encap_ops fou_iptun_ops = { .encap_hlen = fou_encap_hlen, |