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| author | Eric Dumazet <edumazet@google.com> | 2014-04-15 13:47:15 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-04-15 13:47:15 -0400 |
| commit | aad88724c9d54acb1a9737cb6069d8470fa85f74 (patch) | |
| tree | 78cc7b925f3d05338373898f018892b8f434a948 /include/net/dst.h | |
| parent | b0270e91014dabfceaf37f5b40ad51bbf21a1302 (diff) | |
| download | linux-aad88724c9d54acb1a9737cb6069d8470fa85f74.tar.gz linux-aad88724c9d54acb1a9737cb6069d8470fa85f74.tar.bz2 linux-aad88724c9d54acb1a9737cb6069d8470fa85f74.zip | |
ipv4: add a sock pointer to dst->output() path.
In the dst->output() path for ipv4, the code assumes the skb it has to
transmit is attached to an inet socket, specifically via
ip_mc_output() : The sk_mc_loop() test triggers a WARN_ON() when the
provider of the packet is an AF_PACKET socket.
The dst->output() method gets an additional 'struct sock *sk'
parameter. This needs a cascade of changes so that this parameter can
be propagated from vxlan to final consumer.
Fixes: 8f646c922d55 ("vxlan: keep original skb ownership")
Reported-by: lucien xin <lucien.xin@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 46ed958e0c6e..71c60f42be48 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -45,7 +45,7 @@ struct dst_entry { void *__pad1; #endif int (*input)(struct sk_buff *); - int (*output)(struct sk_buff *); + int (*output)(struct sock *sk, struct sk_buff *skb); unsigned short flags; #define DST_HOST 0x0001 @@ -367,7 +367,11 @@ static inline struct dst_entry *skb_dst_pop(struct sk_buff *skb) return child; } -int dst_discard(struct sk_buff *skb); +int dst_discard_sk(struct sock *sk, struct sk_buff *skb); +static inline int dst_discard(struct sk_buff *skb) +{ + return dst_discard_sk(skb->sk, skb); +} void *dst_alloc(struct dst_ops *ops, struct net_device *dev, int initial_ref, int initial_obsolete, unsigned short flags); void __dst_free(struct dst_entry *dst); @@ -449,9 +453,13 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout) } /* Output packet to network from transport. */ +static inline int dst_output_sk(struct sock *sk, struct sk_buff *skb) +{ + return skb_dst(skb)->output(sk, skb); +} static inline int dst_output(struct sk_buff *skb) { - return skb_dst(skb)->output(skb); + return dst_output_sk(skb->sk, skb); } /* Input packet from network to transport. */ |