mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 01:49:36 +00:00
udp_tunnel: Pass UDP socket down through udp_tunnel{, 6}_xmit_skb().
That was we can make sure the output path of ipv4/ipv6 operate on the UDP socket rather than whatever random thing happens to be in skb->sk. Based upon a patch by Jiri Pirko. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
This commit is contained in:
parent
7026b1ddb6
commit
79b16aadea
14 changed files with 48 additions and 28 deletions
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@ -1672,7 +1672,8 @@ static void vxlan_build_gbp_hdr(struct vxlanhdr *vxh, u32 vxflags,
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}
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}
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#if IS_ENABLED(CONFIG_IPV6)
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#if IS_ENABLED(CONFIG_IPV6)
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static int vxlan6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
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static int vxlan6_xmit_skb(struct dst_entry *dst, struct sock *sk,
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struct sk_buff *skb,
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struct net_device *dev, struct in6_addr *saddr,
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struct net_device *dev, struct in6_addr *saddr,
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struct in6_addr *daddr, __u8 prio, __u8 ttl,
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struct in6_addr *daddr, __u8 prio, __u8 ttl,
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__be16 src_port, __be16 dst_port,
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__be16 src_port, __be16 dst_port,
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@ -1748,7 +1749,7 @@ static int vxlan6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
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skb_set_inner_protocol(skb, htons(ETH_P_TEB));
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skb_set_inner_protocol(skb, htons(ETH_P_TEB));
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udp_tunnel6_xmit_skb(dst, skb, dev, saddr, daddr, prio,
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udp_tunnel6_xmit_skb(dst, sk, skb, dev, saddr, daddr, prio,
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ttl, src_port, dst_port,
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ttl, src_port, dst_port,
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!!(vxflags & VXLAN_F_UDP_ZERO_CSUM6_TX));
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!!(vxflags & VXLAN_F_UDP_ZERO_CSUM6_TX));
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return 0;
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return 0;
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@ -1758,7 +1759,7 @@ static int vxlan6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
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}
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}
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#endif
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#endif
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int vxlan_xmit_skb(struct rtable *rt, struct sk_buff *skb,
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int vxlan_xmit_skb(struct rtable *rt, struct sock *sk, struct sk_buff *skb,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
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__be16 src_port, __be16 dst_port,
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__be16 src_port, __be16 dst_port,
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struct vxlan_metadata *md, bool xnet, u32 vxflags)
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struct vxlan_metadata *md, bool xnet, u32 vxflags)
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@ -1827,7 +1828,7 @@ int vxlan_xmit_skb(struct rtable *rt, struct sk_buff *skb,
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skb_set_inner_protocol(skb, htons(ETH_P_TEB));
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skb_set_inner_protocol(skb, htons(ETH_P_TEB));
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return udp_tunnel_xmit_skb(rt, skb, src, dst, tos,
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return udp_tunnel_xmit_skb(rt, sk, skb, src, dst, tos,
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ttl, df, src_port, dst_port, xnet,
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ttl, df, src_port, dst_port, xnet,
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!(vxflags & VXLAN_F_UDP_CSUM));
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!(vxflags & VXLAN_F_UDP_CSUM));
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}
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}
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@ -1882,6 +1883,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
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struct vxlan_rdst *rdst, bool did_rsc)
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struct vxlan_rdst *rdst, bool did_rsc)
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{
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{
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struct vxlan_dev *vxlan = netdev_priv(dev);
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struct vxlan_dev *vxlan = netdev_priv(dev);
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struct sock *sk = vxlan->vn_sock->sock->sk;
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struct rtable *rt = NULL;
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struct rtable *rt = NULL;
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const struct iphdr *old_iph;
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const struct iphdr *old_iph;
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struct flowi4 fl4;
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struct flowi4 fl4;
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@ -1961,7 +1963,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
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md.vni = htonl(vni << 8);
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md.vni = htonl(vni << 8);
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md.gbp = skb->mark;
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md.gbp = skb->mark;
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err = vxlan_xmit_skb(rt, skb, fl4.saddr,
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err = vxlan_xmit_skb(rt, sk, skb, fl4.saddr,
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dst->sin.sin_addr.s_addr, tos, ttl, df,
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dst->sin.sin_addr.s_addr, tos, ttl, df,
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src_port, dst_port, &md,
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src_port, dst_port, &md,
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!net_eq(vxlan->net, dev_net(vxlan->dev)),
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!net_eq(vxlan->net, dev_net(vxlan->dev)),
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@ -2021,7 +2023,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
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md.vni = htonl(vni << 8);
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md.vni = htonl(vni << 8);
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md.gbp = skb->mark;
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md.gbp = skb->mark;
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err = vxlan6_xmit_skb(ndst, skb, dev, &fl6.saddr, &fl6.daddr,
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err = vxlan6_xmit_skb(ndst, sk, skb, dev, &fl6.saddr, &fl6.daddr,
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0, ttl, src_port, dst_port, &md,
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0, ttl, src_port, dst_port, &md,
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!net_eq(vxlan->net, dev_net(vxlan->dev)),
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!net_eq(vxlan->net, dev_net(vxlan->dev)),
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vxlan->flags);
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vxlan->flags);
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@ -73,13 +73,14 @@ __u32 ip6_tnl_get_cap(struct ip6_tnl *t, const struct in6_addr *laddr,
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struct net *ip6_tnl_get_link_net(const struct net_device *dev);
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struct net *ip6_tnl_get_link_net(const struct net_device *dev);
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int ip6_tnl_get_iflink(const struct net_device *dev);
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int ip6_tnl_get_iflink(const struct net_device *dev);
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static inline void ip6tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
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static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb,
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struct net_device *dev)
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{
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{
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struct net_device_stats *stats = &dev->stats;
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struct net_device_stats *stats = &dev->stats;
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int pkt_len, err;
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int pkt_len, err;
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pkt_len = skb->len;
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pkt_len = skb->len;
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err = ip6_local_out(skb);
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err = ip6_local_out_sk(sk, skb);
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if (net_xmit_eval(err) == 0) {
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if (net_xmit_eval(err) == 0) {
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struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
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struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
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@ -827,6 +827,7 @@ int ip6_input(struct sk_buff *skb);
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int ip6_mc_input(struct sk_buff *skb);
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int ip6_mc_input(struct sk_buff *skb);
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int __ip6_local_out(struct sk_buff *skb);
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int __ip6_local_out(struct sk_buff *skb);
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int ip6_local_out_sk(struct sock *sk, struct sk_buff *skb);
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int ip6_local_out(struct sk_buff *skb);
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int ip6_local_out(struct sk_buff *skb);
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/*
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/*
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@ -77,13 +77,14 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock,
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struct udp_tunnel_sock_cfg *sock_cfg);
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struct udp_tunnel_sock_cfg *sock_cfg);
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/* Transmit the skb using UDP encapsulation. */
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/* Transmit the skb using UDP encapsulation. */
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int udp_tunnel_xmit_skb(struct rtable *rt, struct sk_buff *skb,
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int udp_tunnel_xmit_skb(struct rtable *rt, struct sock *sk, struct sk_buff *skb,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl,
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__be16 df, __be16 src_port, __be16 dst_port,
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__be16 df, __be16 src_port, __be16 dst_port,
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bool xnet, bool nocheck);
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bool xnet, bool nocheck);
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#if IS_ENABLED(CONFIG_IPV6)
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#if IS_ENABLED(CONFIG_IPV6)
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int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
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int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sock *sk,
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struct sk_buff *skb,
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struct net_device *dev, struct in6_addr *saddr,
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struct net_device *dev, struct in6_addr *saddr,
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struct in6_addr *daddr,
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struct in6_addr *daddr,
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__u8 prio, __u8 ttl, __be16 src_port,
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__u8 prio, __u8 ttl, __be16 src_port,
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@ -145,7 +145,7 @@ struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port,
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void vxlan_sock_release(struct vxlan_sock *vs);
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void vxlan_sock_release(struct vxlan_sock *vs);
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int vxlan_xmit_skb(struct rtable *rt, struct sk_buff *skb,
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int vxlan_xmit_skb(struct rtable *rt, struct sock *sk, struct sk_buff *skb,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df,
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__be16 src_port, __be16 dst_port, struct vxlan_metadata *md,
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__be16 src_port, __be16 dst_port, struct vxlan_metadata *md,
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bool xnet, u32 vxflags);
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bool xnet, u32 vxflags);
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@ -136,7 +136,7 @@ int geneve_xmit_skb(struct geneve_sock *gs, struct rtable *rt,
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skb_set_inner_protocol(skb, htons(ETH_P_TEB));
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skb_set_inner_protocol(skb, htons(ETH_P_TEB));
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return udp_tunnel_xmit_skb(rt, skb, src, dst,
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return udp_tunnel_xmit_skb(rt, gs->sock->sk, skb, src, dst,
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tos, ttl, df, src_port, dst_port, xnet,
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tos, ttl, df, src_port, dst_port, xnet,
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!csum);
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!csum);
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}
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}
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@ -782,7 +782,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
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return;
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return;
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}
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}
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err = iptunnel_xmit(skb->sk, rt, skb, fl4.saddr, fl4.daddr, protocol,
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err = iptunnel_xmit(NULL, rt, skb, fl4.saddr, fl4.daddr, protocol,
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tos, ttl, df, !net_eq(tunnel->net, dev_net(dev)));
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tos, ttl, df, !net_eq(tunnel->net, dev_net(dev)));
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iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
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iptunnel_xmit_stats(err, &dev->stats, dev->tstats);
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@ -75,7 +75,7 @@ void setup_udp_tunnel_sock(struct net *net, struct socket *sock,
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}
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}
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EXPORT_SYMBOL_GPL(setup_udp_tunnel_sock);
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EXPORT_SYMBOL_GPL(setup_udp_tunnel_sock);
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int udp_tunnel_xmit_skb(struct rtable *rt, struct sk_buff *skb,
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int udp_tunnel_xmit_skb(struct rtable *rt, struct sock *sk, struct sk_buff *skb,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl,
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__be32 src, __be32 dst, __u8 tos, __u8 ttl,
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__be16 df, __be16 src_port, __be16 dst_port,
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__be16 df, __be16 src_port, __be16 dst_port,
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bool xnet, bool nocheck)
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bool xnet, bool nocheck)
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@ -92,7 +92,7 @@ int udp_tunnel_xmit_skb(struct rtable *rt, struct sk_buff *skb,
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udp_set_csum(nocheck, skb, src, dst, skb->len);
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udp_set_csum(nocheck, skb, src, dst, skb->len);
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return iptunnel_xmit(skb->sk, rt, skb, src, dst, IPPROTO_UDP,
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return iptunnel_xmit(sk, rt, skb, src, dst, IPPROTO_UDP,
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tos, ttl, df, xnet);
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tos, ttl, df, xnet);
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}
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}
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EXPORT_SYMBOL_GPL(udp_tunnel_xmit_skb);
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EXPORT_SYMBOL_GPL(udp_tunnel_xmit_skb);
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@ -760,7 +760,7 @@ static netdev_tx_t ip6gre_xmit2(struct sk_buff *skb,
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skb_set_inner_protocol(skb, protocol);
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skb_set_inner_protocol(skb, protocol);
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ip6tunnel_xmit(skb, dev);
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ip6tunnel_xmit(NULL, skb, dev);
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if (ndst)
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if (ndst)
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ip6_tnl_dst_store(tunnel, ndst);
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ip6_tnl_dst_store(tunnel, ndst);
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return 0;
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return 0;
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@ -1100,7 +1100,7 @@ static int ip6_tnl_xmit2(struct sk_buff *skb,
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ipv6h->nexthdr = proto;
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ipv6h->nexthdr = proto;
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ipv6h->saddr = fl6->saddr;
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ipv6h->saddr = fl6->saddr;
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ipv6h->daddr = fl6->daddr;
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ipv6h->daddr = fl6->daddr;
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ip6tunnel_xmit(skb, dev);
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ip6tunnel_xmit(NULL, skb, dev);
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if (ndst)
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if (ndst)
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ip6_tnl_dst_store(t, ndst);
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ip6_tnl_dst_store(t, ndst);
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return 0;
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return 0;
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@ -62,7 +62,8 @@ int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
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}
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}
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EXPORT_SYMBOL_GPL(udp_sock_create6);
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EXPORT_SYMBOL_GPL(udp_sock_create6);
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int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
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int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sock *sk,
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struct sk_buff *skb,
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struct net_device *dev, struct in6_addr *saddr,
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struct net_device *dev, struct in6_addr *saddr,
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struct in6_addr *daddr,
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struct in6_addr *daddr,
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__u8 prio, __u8 ttl, __be16 src_port,
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__u8 prio, __u8 ttl, __be16 src_port,
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@ -97,7 +98,7 @@ int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sk_buff *skb,
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ip6h->daddr = *daddr;
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ip6h->daddr = *daddr;
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ip6h->saddr = *saddr;
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ip6h->saddr = *saddr;
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ip6tunnel_xmit(skb, dev);
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ip6tunnel_xmit(sk, skb, dev);
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return 0;
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return 0;
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}
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}
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EXPORT_SYMBOL_GPL(udp_tunnel6_xmit_skb);
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EXPORT_SYMBOL_GPL(udp_tunnel6_xmit_skb);
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@ -136,7 +136,7 @@ int ip6_dst_hoplimit(struct dst_entry *dst)
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EXPORT_SYMBOL(ip6_dst_hoplimit);
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EXPORT_SYMBOL(ip6_dst_hoplimit);
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#endif
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#endif
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int __ip6_local_out(struct sk_buff *skb)
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static int __ip6_local_out_sk(struct sock *sk, struct sk_buff *skb)
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{
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{
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int len;
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int len;
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@ -146,19 +146,30 @@ int __ip6_local_out(struct sk_buff *skb)
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ipv6_hdr(skb)->payload_len = htons(len);
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ipv6_hdr(skb)->payload_len = htons(len);
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IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
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IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
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return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb->sk, skb,
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return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
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NULL, skb_dst(skb)->dev, dst_output_sk);
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NULL, skb_dst(skb)->dev, dst_output_sk);
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}
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}
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int __ip6_local_out(struct sk_buff *skb)
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{
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return __ip6_local_out_sk(skb->sk, skb);
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}
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EXPORT_SYMBOL_GPL(__ip6_local_out);
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EXPORT_SYMBOL_GPL(__ip6_local_out);
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int ip6_local_out(struct sk_buff *skb)
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int ip6_local_out_sk(struct sock *sk, struct sk_buff *skb)
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{
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{
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int err;
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int err;
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err = __ip6_local_out(skb);
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err = __ip6_local_out_sk(sk, skb);
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if (likely(err == 1))
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if (likely(err == 1))
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err = dst_output(skb);
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err = dst_output_sk(sk, skb);
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return err;
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return err;
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}
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}
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EXPORT_SYMBOL_GPL(ip6_local_out_sk);
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int ip6_local_out(struct sk_buff *skb)
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{
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return ip6_local_out_sk(skb->sk, skb);
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}
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EXPORT_SYMBOL_GPL(ip6_local_out);
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EXPORT_SYMBOL_GPL(ip6_local_out);
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@ -222,7 +222,8 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
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{
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{
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struct net *net = ovs_dp_get_net(vport->dp);
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struct net *net = ovs_dp_get_net(vport->dp);
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struct vxlan_port *vxlan_port = vxlan_vport(vport);
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struct vxlan_port *vxlan_port = vxlan_vport(vport);
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__be16 dst_port = inet_sk(vxlan_port->vs->sock->sk)->inet_sport;
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struct sock *sk = vxlan_port->vs->sock->sk;
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__be16 dst_port = inet_sk(sk)->inet_sport;
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const struct ovs_key_ipv4_tunnel *tun_key;
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const struct ovs_key_ipv4_tunnel *tun_key;
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struct vxlan_metadata md = {0};
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struct vxlan_metadata md = {0};
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struct rtable *rt;
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struct rtable *rt;
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||||||
|
@ -255,7 +256,7 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
|
||||||
vxflags = vxlan_port->exts |
|
vxflags = vxlan_port->exts |
|
||||||
(tun_key->tun_flags & TUNNEL_CSUM ? VXLAN_F_UDP_CSUM : 0);
|
(tun_key->tun_flags & TUNNEL_CSUM ? VXLAN_F_UDP_CSUM : 0);
|
||||||
|
|
||||||
err = vxlan_xmit_skb(rt, skb, fl.saddr, tun_key->ipv4_dst,
|
err = vxlan_xmit_skb(rt, sk, skb, fl.saddr, tun_key->ipv4_dst,
|
||||||
tun_key->ipv4_tos, tun_key->ipv4_ttl, df,
|
tun_key->ipv4_tos, tun_key->ipv4_ttl, df,
|
||||||
src_port, dst_port,
|
src_port, dst_port,
|
||||||
&md, false, vxflags);
|
&md, false, vxflags);
|
||||||
|
|
|
@ -176,7 +176,8 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
|
||||||
goto tx_error;
|
goto tx_error;
|
||||||
}
|
}
|
||||||
ttl = ip4_dst_hoplimit(&rt->dst);
|
ttl = ip4_dst_hoplimit(&rt->dst);
|
||||||
err = udp_tunnel_xmit_skb(rt, clone, src->ipv4.s_addr,
|
err = udp_tunnel_xmit_skb(rt, ub->ubsock->sk, clone,
|
||||||
|
src->ipv4.s_addr,
|
||||||
dst->ipv4.s_addr, 0, ttl, 0,
|
dst->ipv4.s_addr, 0, ttl, 0,
|
||||||
src->udp_port, dst->udp_port,
|
src->udp_port, dst->udp_port,
|
||||||
false, true);
|
false, true);
|
||||||
|
@ -197,7 +198,8 @@ static int tipc_udp_send_msg(struct net *net, struct sk_buff *skb,
|
||||||
if (err)
|
if (err)
|
||||||
goto tx_error;
|
goto tx_error;
|
||||||
ttl = ip6_dst_hoplimit(ndst);
|
ttl = ip6_dst_hoplimit(ndst);
|
||||||
err = udp_tunnel6_xmit_skb(ndst, clone, ndst->dev, &src->ipv6,
|
err = udp_tunnel6_xmit_skb(ndst, ub->ubsock->sk, clone,
|
||||||
|
ndst->dev, &src->ipv6,
|
||||||
&dst->ipv6, 0, ttl, src->udp_port,
|
&dst->ipv6, 0, ttl, src->udp_port,
|
||||||
dst->udp_port, false);
|
dst->udp_port, false);
|
||||||
#endif
|
#endif
|
||||||
|
|
Loading…
Reference in a new issue