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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-12-04 07:54:12 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 23:55:49 +0100 |
| commit | 2fcb45b6b87914f072314e5b5d9c196f45984683 (patch) | |
| tree | e5a6cc4101a8b2693799fde9f47abaf480ae2dfc | |
| parent | [UDP]: Counter increment should be in USER mode for recvmsg (diff) | |
| download | linux-2fcb45b6b87914f072314e5b5d9c196f45984683.tar.xz linux-2fcb45b6b87914f072314e5b5d9c196f45984683.zip | |
[IPSEC]: Use the correct family for input state lookup
When merging the input paths of IPsec I accidentally left a hard-coded
AF_INET for the state lookup call. This broke IPv6 obviously. This
patch fixes by getting the input callers to specify the family through
skb->cb.
Credit goes to Kazunori Miyazawa for diagnosing this and providing an
initial patch.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/xfrm.h | 1 | ||||
| -rw-r--r-- | net/ipv4/xfrm4_input.c | 1 | ||||
| -rw-r--r-- | net/ipv6/xfrm6_input.c | 1 | ||||
| -rw-r--r-- | net/xfrm/xfrm_input.c | 5 |
4 files changed, 7 insertions, 1 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h index ecc02e9bde32..182f10b29d88 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -534,6 +534,7 @@ struct xfrm_spi_skb_cb { } header; unsigned int daddroff; + unsigned int family; }; #define XFRM_SPI_SKB_CB(__skb) ((struct xfrm_spi_skb_cb *)&((__skb)->cb[0])) diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c index 0c377a66b8b5..33f990d56c91 100644 --- a/net/ipv4/xfrm4_input.c +++ b/net/ipv4/xfrm4_input.c @@ -39,6 +39,7 @@ drop: int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) { + XFRM_SPI_SKB_CB(skb)->family = AF_INET; XFRM_SPI_SKB_CB(skb)->daddroff = offsetof(struct iphdr, daddr); return xfrm_input(skb, nexthdr, spi, encap_type); } diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c index e2c3efd2579d..74f3aacebb5e 100644 --- a/net/ipv6/xfrm6_input.c +++ b/net/ipv6/xfrm6_input.c @@ -23,6 +23,7 @@ int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb) int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi) { + XFRM_SPI_SKB_CB(skb)->family = AF_INET6; XFRM_SPI_SKB_CB(skb)->daddroff = offsetof(struct ipv6hdr, daddr); return xfrm_input(skb, nexthdr, spi, 0); } diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 96f42c1d2e8e..8b2b1b59133e 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -102,6 +102,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) __be32 seq; struct xfrm_state *x; xfrm_address_t *daddr; + unsigned int family; int decaps = 0; int async = 0; @@ -127,6 +128,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) daddr = (xfrm_address_t *)(skb_network_header(skb) + XFRM_SPI_SKB_CB(skb)->daddroff); + family = XFRM_SPI_SKB_CB(skb)->family; seq = 0; if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0) @@ -136,7 +138,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type) if (skb->sp->len == XFRM_MAX_DEPTH) goto drop; - x = xfrm_state_lookup(daddr, spi, nexthdr, AF_INET); + x = xfrm_state_lookup(daddr, spi, nexthdr, family); if (x == NULL) goto drop; @@ -198,6 +200,7 @@ resume: * transport mode so the outer address is identical. */ daddr = &x->id.daddr; + family = x->outer_mode->afinfo->family; err = xfrm_parse_spi(skb, nexthdr, &spi, &seq); if (err < 0) |