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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-19 18:55:56 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-19 18:55:56 -0700
commitd0b952a9837f81cd89e756b1b34293fa6e1cb59d (patch)
treefbe488bc5f407afa0e91cefb262d9e9ee69062ac /net/ipv4/esp4.c
parentd90125bfe958ed0451c6b98f831c86aba08b43d5 (diff)
parent47552c4e555eefe381f3d45140b59a2ea4b16486 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (109 commits) [ETHTOOL]: Fix UFO typo [SCTP]: Fix persistent slowdown in sctp when a gap ack consumes rx buffer. [SCTP]: Send only 1 window update SACK per message. [SCTP]: Don't do CRC32C checksum over loopback. [SCTP] Reset rtt_in_progress for the chunk when processing its sack. [SCTP]: Reject sctp packets with broadcast addresses. [SCTP]: Limit association max_retrans setting in setsockopt. [PFKEYV2]: Fix inconsistent typing in struct sadb_x_kmprivate. [IPV6]: Sum real space for RTAs. [IRDA]: Use put_unaligned() in irlmp_do_discovery(). [BRIDGE]: Add support for NETIF_F_HW_CSUM devices [NET]: Add NETIF_F_GEN_CSUM and NETIF_F_ALL_CSUM [TG3]: Convert to non-LLTX [TG3]: Remove unnecessary tx_lock [TCP]: Add tcp_slow_start_after_idle sysctl. [BNX2]: Update version and reldate [BNX2]: Use CPU native page size [BNX2]: Use compressed firmware [BNX2]: Add firmware decompression [BNX2]: Allow WoL settings on new 5708 chips ... Manual fixup for conflict in drivers/net/tulip/winbond-840.c
Diffstat (limited to 'net/ipv4/esp4.c')
-rw-r--r--net/ipv4/esp4.c18
1 files changed, 6 insertions, 12 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 9d1881c07a3..9bbdd449455 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -143,10 +143,9 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
int alen = esp->auth.icv_trunc_len;
int elen = skb->len - sizeof(struct ip_esp_hdr) - esp->conf.ivlen - alen;
int nfrags;
- int encap_len = 0;
+ int ihl;
u8 nexthdr[2];
struct scatterlist *sg;
- u8 workbuf[60];
int padlen;
if (!pskb_may_pull(skb, sizeof(struct ip_esp_hdr)))
@@ -177,7 +176,6 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
skb->ip_summed = CHECKSUM_NONE;
esph = (struct ip_esp_hdr*)skb->data;
- iph = skb->nh.iph;
/* Get ivec. This can be wrong, check against another impls. */
if (esp->conf.ivlen)
@@ -204,12 +202,12 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
/* ... check padding bits here. Silly. :-) */
+ iph = skb->nh.iph;
+ ihl = iph->ihl * 4;
+
if (x->encap) {
struct xfrm_encap_tmpl *encap = x->encap;
- struct udphdr *uh;
-
- uh = (struct udphdr *)(iph + 1);
- encap_len = (void*)esph - (void*)uh;
+ struct udphdr *uh = (void *)(skb->nh.raw + ihl);
/*
* 1) if the NAT-T peer's IP or port changed then
@@ -246,11 +244,7 @@ static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
iph->protocol = nexthdr[1];
pskb_trim(skb, skb->len - alen - padlen - 2);
- memcpy(workbuf, skb->nh.raw, iph->ihl*4);
- skb->h.raw = skb_pull(skb, sizeof(struct ip_esp_hdr) + esp->conf.ivlen);
- skb->nh.raw += encap_len + sizeof(struct ip_esp_hdr) + esp->conf.ivlen;
- memcpy(skb->nh.raw, workbuf, iph->ihl*4);
- skb->nh.iph->tot_len = htons(skb->len);
+ skb->h.raw = __skb_pull(skb, sizeof(*esph) + esp->conf.ivlen) - ihl;
return 0;