diff options
| author | Florian Westphal <fw@strlen.de> | 2020-05-04 11:06:09 +0300 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2020-05-06 10:40:08 +0300 |
| commit | 2ab6096db2f16b3a6adbad252f1be171e649028d (patch) | |
| tree | f4a096067056306539416fec2f73f0ad27fe03be /net/ipv6/xfrm6_output.c | |
| parent | f3075f48ddb2c4d076aeda36fa0939163e4b2816 (diff) | |
| download | linux-2ab6096db2f16b3a6adbad252f1be171e649028d.tar.xz | |
xfrm: remove output_finish indirection from xfrm_state_afinfo
There are only two implementaions, one for ipv4 and one for ipv6.
Both are almost identical, they clear skb->cb[], set the TRANSFORMED flag
in IP(6)CB and then call the common xfrm_output() function.
By placing the IPCB handling into the common function, we avoid the need
for the output_finish indirection as the output functions can simply
use xfrm_output().
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv6/xfrm6_output.c')
| -rw-r--r-- | net/ipv6/xfrm6_output.c | 34 |
1 files changed, 2 insertions, 32 deletions
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c index b7d65b344679..8b84d534b19d 100644 --- a/net/ipv6/xfrm6_output.c +++ b/net/ipv6/xfrm6_output.c @@ -47,39 +47,9 @@ void xfrm6_local_error(struct sk_buff *skb, u32 mtu) ipv6_local_error(sk, EMSGSIZE, &fl6, mtu); } -int xfrm6_output_finish(struct sock *sk, struct sk_buff *skb) -{ - memset(IP6CB(skb), 0, sizeof(*IP6CB(skb))); - -#ifdef CONFIG_NETFILTER - IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED; -#endif - - return xfrm_output(sk, skb); -} - -static int __xfrm6_output_state_finish(struct xfrm_state *x, struct sock *sk, - struct sk_buff *skb) -{ - const struct xfrm_state_afinfo *afinfo; - int ret = -EAFNOSUPPORT; - - rcu_read_lock(); - afinfo = xfrm_state_afinfo_get_rcu(x->outer_mode.family); - if (likely(afinfo)) - ret = afinfo->output_finish(sk, skb); - else - kfree_skb(skb); - rcu_read_unlock(); - - return ret; -} - static int __xfrm6_output_finish(struct net *net, struct sock *sk, struct sk_buff *skb) { - struct xfrm_state *x = skb_dst(skb)->xfrm; - - return __xfrm6_output_state_finish(x, sk, skb); + return xfrm_output(sk, skb); } static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb) @@ -121,7 +91,7 @@ static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb) __xfrm6_output_finish); skip_frag: - return __xfrm6_output_state_finish(x, sk, skb); + return xfrm_output(sk, skb); } int xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb) |