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| author | Tom Herbert <tom@herbertland.com> | 2016-04-30 02:12:20 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-03 01:23:32 +0200 |
| commit | 79ecb90e65f33d1941ac1f8e43eec34ec3bdbad8 (patch) | |
| tree | 39bb9d5b58a76782437b675b0abb92ff3e74a570 /include/net/ip6_tunnel.h | |
| parent | gre: Create common functions for transmit (diff) | |
| download | linux-79ecb90e65f33d1941ac1f8e43eec34ec3bdbad8.tar.xz linux-79ecb90e65f33d1941ac1f8e43eec34ec3bdbad8.zip | |
ipv6: Generic tunnel cleanup
A few generic changes to generalize tunnels in IPv6:
- Export ip6_tnl_change_mtu so that it can be called by ip6_gre
- Add tun_hlen to ip6_tnl structure.
Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip6_tunnel.h')
| -rw-r--r-- | include/net/ip6_tunnel.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h index 835491bd5636..fb9e0153f4f2 100644 --- a/include/net/ip6_tunnel.h +++ b/include/net/ip6_tunnel.h @@ -50,8 +50,10 @@ struct ip6_tnl { /* These fields used only by GRE */ __u32 i_seqno; /* The last seen seqno */ __u32 o_seqno; /* The last output seqno */ - int hlen; /* Precalculated GRE header length */ + int hlen; /* tun_hlen + encap_hlen */ + int tun_hlen; /* Precalculated header length */ int mlink; + }; /* Tunnel encapsulation limit destination sub-option */ @@ -76,6 +78,7 @@ __u32 ip6_tnl_get_cap(struct ip6_tnl *t, const struct in6_addr *laddr, const struct in6_addr *raddr); struct net *ip6_tnl_get_link_net(const struct net_device *dev); int ip6_tnl_get_iflink(const struct net_device *dev); +int ip6_tnl_change_mtu(struct net_device *dev, int new_mtu); #ifdef CONFIG_INET static inline void ip6tunnel_xmit(struct sock *sk, struct sk_buff *skb, |