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| author |   David Lebrun <david.lebrun@uclouvain.be> | 2016-11-08 14:57:40 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-11-09 20:40:06 -0500 |
| commit | 915d7e5e5930b4f01d0971d93b9b25ed17d221aa (patch) | |
| tree | 4472f02afaab50ddcded4df81c43bc5991abd751 /include/net/seg6.h | |
| parent | ipv6: implement dataplane support for rthdr type 4 (Segment Routing Header) (diff) | |
| download | linux-dev-915d7e5e5930b4f01d0971d93b9b25ed17d221aa.tar.xz linux-dev-915d7e5e5930b4f01d0971d93b9b25ed17d221aa.zip | |
ipv6: sr: add code base for control plane support of SR-IPv6
This patch adds the necessary hooks and structures to provide support
for SR-IPv6 control plane, essentially the Generic Netlink commands
that will be used for userspace control over the Segment Routing
kernel structures.
The genetlink commands provide control over two different structures:
tunnel source and HMAC data. The tunnel source is the source address
that will be used by default when encapsulating packets into an
outer IPv6 header + SRH. If the tunnel source is set to :: then an
address of the outgoing interface will be selected as the source.
The HMAC commands currently just return ENOTSUPP and will be implemented
in a future patch.
Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/seg6.h')
| -rw-r--r-- | include/net/seg6.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/net/seg6.h b/include/net/seg6.h index 4dd52a7e95f1..7c7b8ed39661 100644 --- a/include/net/seg6.h +++ b/include/net/seg6.h @@ -14,6 +14,9 @@ #ifndef _NET_SEG6_H #define _NET_SEG6_H +#include <linux/net.h> +#include <linux/ipv6.h> + static inline void update_csum_diff4(struct sk_buff *skb, __be32 from, __be32 to) { @@ -33,4 +36,17 @@ static inline void update_csum_diff16(struct sk_buff *skb, __be32 *from, skb->csum = ~csum_partial((char *)diff, sizeof(diff), ~skb->csum); } +struct seg6_pernet_data { + struct mutex lock; + struct in6_addr __rcu *tun_src; +}; + +static inline struct seg6_pernet_data *seg6_pernet(struct net *net) +{ + return net->ipv6.seg6_data; +} + +extern int seg6_init(void); +extern void seg6_exit(void); + #endif |