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[SK_BUFF] ipv6: More skb_reset_network_header conversions related to skb_pull

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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 <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-03-10 19:57:15 -03:00 committed by David S. Miller
parent 8856dfa3e9
commit 1ced98e81d
4 changed files with 10 additions and 7 deletions
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5
net/ipv6/datagram.c
View File

@ -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);

5
net/ipv6/netfilter/ip6t_REJECT.c
View File

@ -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;

4
net/ipv6/raw.c
View File

@ -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;

3
net/sctp/ipv6.c
View File

@ -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. */