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| author | Pravin B Shelar <pshelar@nicira.com> | 2015-08-26 23:46:50 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-27 15:42:47 -0700 |
| commit | c29a70d2cadfea443c027d23481f820530b70057 (patch) | |
| tree | 2ebe4f224f810316d5b4f40131fe871bc7fb0ee6 /net/ipv4 | |
| parent | 980c394c53e420f7e5484d011378a4bec861ec7a (diff) | |
| download | linux-c29a70d2cadfea443c027d23481f820530b70057.tar.gz linux-c29a70d2cadfea443c027d23481f820530b70057.tar.xz | |
tunnel: introduce udp_tun_rx_dst()
Introduce function udp_tun_rx_dst() to initialize tunnel dst on
receive path.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_gre.c | 21 | ||||
| -rw-r--r-- | net/ipv4/udp_tunnel.c | 25 |
2 files changed, 29 insertions, 17 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index 1bf328182697..faf1cde6f8da 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -400,25 +400,14 @@ static int ipgre_rcv(struct sk_buff *skb, const struct tnl_ptk_info *tpi) if (tunnel) { skb_pop_mac_header(skb); if (tunnel->collect_md) { - struct ip_tunnel_info *info; + __be16 flags; + __be64 tun_id; - tun_dst = metadata_dst_alloc(0, GFP_ATOMIC); + flags = tpi->flags & (TUNNEL_CSUM | TUNNEL_KEY); + tun_id = key_to_tunnel_id(tpi->key); + tun_dst = ip_tun_rx_dst(skb, flags, tun_id, 0); if (!tun_dst) return PACKET_REJECT; - - info = &tun_dst->u.tun_info; - info->key.u.ipv4.src = iph->saddr; - info->key.u.ipv4.dst = iph->daddr; - info->key.tos = iph->tos; - info->key.ttl = iph->ttl; - - info->mode = IP_TUNNEL_INFO_RX; - info->key.tun_flags = tpi->flags & - (TUNNEL_CSUM | TUNNEL_KEY); - info->key.tun_id = key_to_tunnel_id(tpi->key); - - info->key.tp_src = 0; - info->key.tp_dst = 0; } ip_tunnel_rcv(tunnel, skb, tpi, tun_dst, log_ecn_error); diff --git a/net/ipv4/udp_tunnel.c b/net/ipv4/udp_tunnel.c index 933ea903f7b8..aba428626b52 100644 --- a/net/ipv4/udp_tunnel.c +++ b/net/ipv4/udp_tunnel.c @@ -4,9 +4,10 @@ #include <linux/udp.h> #include <linux/types.h> #include <linux/kernel.h> +#include <net/dst_metadata.h> +#include <net/net_namespace.h> #include <net/udp.h> #include <net/udp_tunnel.h> -#include <net/net_namespace.h> int udp_sock_create4(struct net *net, struct udp_port_cfg *cfg, struct socket **sockp) @@ -103,4 +104,26 @@ void udp_tunnel_sock_release(struct socket *sock) } EXPORT_SYMBOL_GPL(udp_tunnel_sock_release); +struct metadata_dst *udp_tun_rx_dst(struct sk_buff *skb, unsigned short family, + __be16 flags, __be64 tunnel_id, int md_size) +{ + struct metadata_dst *tun_dst; + struct ip_tunnel_info *info; + + if (family == AF_INET) + tun_dst = ip_tun_rx_dst(skb, flags, tunnel_id, md_size); + else + tun_dst = ipv6_tun_rx_dst(skb, flags, tunnel_id, md_size); + if (!tun_dst) + return NULL; + + info = &tun_dst->u.tun_info; + info->key.tp_src = udp_hdr(skb)->source; + info->key.tp_dst = udp_hdr(skb)->dest; + if (udp_hdr(skb)->check) + info->key.tun_flags |= TUNNEL_CSUM; + return tun_dst; +} +EXPORT_SYMBOL_GPL(udp_tun_rx_dst); + MODULE_LICENSE("GPL"); |