diff options
| author | David Ahern <dsahern@gmail.com> | 2017-08-07 08:44:20 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-07 11:39:22 -0700 |
| commit | 1801b570dd2ae50b90231f283e79a9a94fbe7875 (patch) | |
| tree | 214ff93b6c25de28c53b596048487ad25aa0ac88 /include/linux/ipv6.h | |
| parent | 60d9b03141243589dacd3136f3fcb4e6976df954 (diff) | |
| download | lwn-1801b570dd2ae50b90231f283e79a9a94fbe7875.tar.gz lwn-1801b570dd2ae50b90231f283e79a9a94fbe7875.zip | |
net: ipv6: add second dif to udp socket lookups
Add a second device index, sdif, to udp socket lookups. sdif is the
index for ingress devices enslaved to an l3mdev. It allows the lookups
to consider the enslaved device as well as the L3 domain when searching
for a socket.
Early demux lookups are handled in the next patch as part of INET_MATCH
changes.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/ipv6.h')
| -rw-r--r-- | include/linux/ipv6.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index 474d6bbc158c..ac2da4e11d5e 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -159,6 +159,16 @@ static inline bool inet6_is_jumbogram(const struct sk_buff *skb) } /* can not be used in TCP layer after tcp_v6_fill_cb */ +static inline int inet6_sdif(const struct sk_buff *skb) +{ +#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) + if (skb && ipv6_l3mdev_skb(IP6CB(skb)->flags)) + return IP6CB(skb)->iif; +#endif + return 0; +} + +/* can not be used in TCP layer after tcp_v6_fill_cb */ static inline bool inet6_exact_dif_match(struct net *net, struct sk_buff *skb) { #if defined(CONFIG_NET_L3_MASTER_DEV) |