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authorSteffen Klassert <steffen.klassert@secunet.com>2011-03-08 03:06:31 +0300
committerDavid S. Miller <davem@davemloft.net>2011-03-14 06:22:28 +0300
commit1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f (patch)
tree14ce0727337a43d1fa28432d01189d1a5f4269c7 /net/ipv6
parent9736acf395d3608583a7be70f62800b494fa103c (diff)
downloadlinux-1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f.tar.xz
xfrm: Use separate low and high order bits of the sequence numbers in xfrm_skb_cb
To support IPsec extended sequence numbers, we split the output sequence numbers of xfrm_skb_cb in low and high order 32 bits and we add the high order 32 bits to the input sequence numbers. All users are updated accordingly. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ah6.c2
-rw-r--r--net/ipv6/esp6.c4
2 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 1aba54ae53c4..2195ae651923 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -409,7 +409,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
ah->reserved = 0;
ah->spi = x->id.spi;
- ah->seq_no = htonl(XFRM_SKB_CB(skb)->seq.output);
+ ah->seq_no = htonl(XFRM_SKB_CB(skb)->seq.output.low);
sg_init_table(sg, nfrags);
skb_to_sgvec(skb, sg, 0, skb->len);
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 1b5c9825743b..c7b5d5ee0dee 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -204,7 +204,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
*skb_mac_header(skb) = IPPROTO_ESP;
esph->spi = x->id.spi;
- esph->seq_no = htonl(XFRM_SKB_CB(skb)->seq.output);
+ esph->seq_no = htonl(XFRM_SKB_CB(skb)->seq.output.low);
sg_init_table(sg, nfrags);
skb_to_sgvec(skb, sg,
@@ -216,7 +216,7 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
aead_givcrypt_set_crypt(req, sg, sg, clen, iv);
aead_givcrypt_set_assoc(req, asg, sizeof(*esph));
aead_givcrypt_set_giv(req, esph->enc_data,
- XFRM_SKB_CB(skb)->seq.output);
+ XFRM_SKB_CB(skb)->seq.output.low);
ESP_SKB_CB(skb)->tmp = tmp;
err = crypto_aead_givencrypt(req);