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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-11-13 21:32:26 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:53:35 -0800 |
| commit | 0148894223740da4818d7f4e6f92cbb5481a25b8 (patch) | |
| tree | be37af4b8c3c81b45c7fff28ff7b6f09c78e2ef0 /net/ipv6/xfrm6_policy.c | |
| parent | b24b8a247ff65c01b252025926fe564209fae4fc (diff) | |
| download | linux-0148894223740da4818d7f4e6f92cbb5481a25b8.tar.gz linux-0148894223740da4818d7f4e6f92cbb5481a25b8.tar.bz2 linux-0148894223740da4818d7f4e6f92cbb5481a25b8.zip | |
[IPV6]: Only set nfheader_len for top xfrm dst
We only need to set nfheader_len in the top xfrm dst. This is because
we only ever read the nfheader_len from the top xfrm dst.
It is also easier to count nfheader_len as part of header_len which
then lets us remove the ugly wrapper functions for incrementing and
decrementing header lengths in xfrm6_policy.c.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/xfrm6_policy.c')
| -rw-r--r-- | net/ipv6/xfrm6_policy.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c index b8e9eb445d74..3cad3e8dc4da 100644 --- a/net/ipv6/xfrm6_policy.c +++ b/net/ipv6/xfrm6_policy.c @@ -102,24 +102,6 @@ __xfrm6_bundle_addr_local(struct xfrm_state *x, struct in6_addr *addr) (struct in6_addr*)&x->props.saddr; } -static inline void -__xfrm6_bundle_len_inc(int *len, int *nflen, struct xfrm_state *x) -{ - if (x->type->flags & XFRM_TYPE_NON_FRAGMENT) - *nflen += x->props.header_len; - else - *len += x->props.header_len; -} - -static inline void -__xfrm6_bundle_len_dec(int *len, int *nflen, struct xfrm_state *x) -{ - if (x->type->flags & XFRM_TYPE_NON_FRAGMENT) - *nflen -= x->props.header_len; - else - *len -= x->props.header_len; -} - /* Allocate chain of dst_entry's, attach known xfrm's, calculate * all the metrics... Shortly, bundle a bundle. */ @@ -142,7 +124,6 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int int i; int err = 0; int header_len = 0; - int nfheader_len = 0; int trailer_len = 0; dst = dst_prev = NULL; @@ -175,7 +156,9 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int dst1->next = dst_prev; dst_prev = dst1; - __xfrm6_bundle_len_inc(&header_len, &nfheader_len, xfrm[i]); + if (xfrm[i]->type->flags & XFRM_TYPE_NON_FRAGMENT) + dst->nfheader_len += xfrm[i]->props.header_len; + header_len += xfrm[i]->props.header_len; trailer_len += xfrm[i]->props.trailer_len; if (xfrm[i]->props.mode != XFRM_MODE_TRANSPORT) { @@ -223,7 +206,6 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int dst_prev->flags |= DST_HOST; dst_prev->lastuse = jiffies; dst_prev->header_len = header_len; - dst_prev->nfheader_len = nfheader_len; dst_prev->trailer_len = trailer_len; memcpy(&dst_prev->metrics, &x->route->metrics, sizeof(dst_prev->metrics)); @@ -242,7 +224,7 @@ __xfrm6_bundle_create(struct xfrm_policy *policy, struct xfrm_state **xfrm, int x->u.rt6.rt6i_src = rt0->rt6i_src; x->u.rt6.rt6i_idev = rt0->rt6i_idev; in6_dev_hold(rt0->rt6i_idev); - __xfrm6_bundle_len_dec(&header_len, &nfheader_len, x->u.dst.xfrm); + header_len -= x->u.dst.xfrm->props.header_len; trailer_len -= x->u.dst.xfrm->props.trailer_len; } |