diff options
| author |   Steffen Klassert <steffen.klassert@secunet.com> | 2011-03-08 00:06:31 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-03-13 20:22:28 -0700 |
| commit | 1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f (patch) | |
| tree | 14ce0727337a43d1fa28432d01189d1a5f4269c7 /net/ipv4 | |
| parent | xfrm: Add basic infrastructure to support IPsec extended sequence numbers (diff) | |
| download | linux-dev-1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f.tar.xz linux-dev-1ce3644ade9c865c755bf0f6a4e109b7bb6eb60f.zip | |
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/ipv4')
| -rw-r--r-- | net/ipv4/ah4.c | 2 | ||||
| -rw-r--r-- | net/ipv4/esp4.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c index 325053df6e70..4286fd3cc0e2 100644 --- a/net/ipv4/ah4.c +++ b/net/ipv4/ah4.c @@ -208,7 +208,7 @@ static int ah_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/ipv4/esp4.c b/net/ipv4/esp4.c index e42a905180f0..882dbbb7d799 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -215,7 +215,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb) } 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, @@ -227,7 +227,7 @@ static int esp_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); |