Now related to this form:
skb->nh.ipv6h = (struct ipv6hdr *)skb_put(skb, length);
That, as the others, is done when skb->tail is still equal to skb->data, making
the conversion to skb_reset_network_header possible.
Also one more case equivalent to skb->nh.raw = skb->data, of this form:
iph = (struct ipv6hdr *)skb->data;
<SNIP>
skb->nh.ipv6h = iph;
Signed-off-by: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]>
---
net/ipv6/datagram.c | 5 +++--
net/ipv6/netfilter/ip6t_REJECT.c | 5 +++--
net/ipv6/raw.c | 4 +++-
net/sctp/ipv6.c | 3 +--
4 files changed, 10 insertions(+), 7 deletions(-)
From a2440f6dec2b4f3fd9690bf1c9d01f9aad13e99d Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]>
Date: Sat, 10 Mar 2007 19:57:15 -0300
Subject: [PATCH 12/18] [SK_BUFF] ipv6: More skb_reset_network_header conversions related to skb_pull
Now related to this form:
skb->nh.ipv6h = (struct ipv6hdr *)skb_put(skb, length);
That, as the others, is done when skb->tail is still equal to skb->data, making
the conversion to skb_reset_network_header possible.
Also one more case equivalent to skb->nh.raw = skb->data, of this form:
iph = (struct ipv6hdr *)skb->data;
<SNIP>
skb->nh.ipv6h = iph;
Signed-off-by: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]>
---
net/ipv6/datagram.c | 5 +++--
net/ipv6/netfilter/ip6t_REJECT.c | 5 +++--
net/ipv6/raw.c | 4 +++-
net/sctp/ipv6.c | 3 +--
4 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 3b4e8dc..31a20f1 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -251,8 +251,9 @@ void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info)
if (!skb)
return;
- iph = (struct ipv6hdr*)skb_put(skb, sizeof(struct ipv6hdr));
- skb->nh.ipv6h = iph;
+ skb_put(skb, sizeof(struct ipv6hdr));
+ skb_reset_network_header(skb);
+ iph = skb->nh.ipv6h;
ipv6_addr_copy(&iph->daddr, &fl->fl6_dst);
serr = SKB_EXT_ERR(skb);
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 6abee94..4441bed 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -120,8 +120,9 @@ static void send_reset(struct sk_buff *oldskb)
skb_reserve(nskb, hh_len + dst->header_len);
- ip6h = nskb->nh.ipv6h = (struct ipv6hdr *)
- skb_put(nskb, sizeof(struct ipv6hdr));
+ skb_put(nskb, sizeof(struct ipv6hdr));
+ skb_reset_network_header(nskb);
+ ip6h = nskb->nh.ipv6h;
ip6h->version = 6;
ip6h->hop_limit = dst_metric(dst, RTAX_HOPLIMIT);
ip6h->nexthdr = IPPROTO_TCP;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 306d5d8..f2b09a7 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -575,7 +575,9 @@ static int rawv6_send_hdrinc(struct sock *sk, void *from, int length,
skb->priority = sk->sk_priority;
skb->dst = dst_clone(&rt->u.dst);
- skb->nh.ipv6h = iph = (struct ipv6hdr *)skb_put(skb, length);
+ skb_put(skb, length);
+ skb_reset_network_header(skb);
+ iph = skb->nh.ipv6h;
skb->ip_summed = CHECKSUM_NONE;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 63fe109..3a9272f 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -122,7 +122,6 @@ SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
int type, int code, int offset, __be32 info)
{
struct inet6_dev *idev;
- struct ipv6hdr *iph = (struct ipv6hdr *)skb->data;
struct sctphdr *sh = (struct sctphdr *)(skb->data + offset);
struct sock *sk;
struct sctp_association *asoc;
@@ -136,7 +135,7 @@ SCTP_STATIC void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
/* Fix up skb to look at the embedded net header. */
saveip = skb->nh.raw;
savesctp = skb->h.raw;
- skb->nh.ipv6h = iph;
+ skb_reset_network_header(skb);
skb->h.raw = (char *)sh;
sk = sctp_err_lookup(AF_INET6, skb, sh, &asoc, &transport);
/* Put back, the original pointers. */
--
1.5.0.2
