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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2007-03-10 19:40:39 -0300 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:24:53 -0700 |
| commit | 8856dfa3e9b71ac2177016f66ace3a8978afecc1 (patch) | |
| tree | 10c62319ef9829e7599125c9c288ccc101e127fd /net/ipv4 | |
| parent | 04b964dbad25cbd6edd8ecbeca2efb40c9860865 (diff) | |
| download | linux-stable-8856dfa3e9b71ac2177016f66ace3a8978afecc1.tar.gz linux-stable-8856dfa3e9b71ac2177016f66ace3a8978afecc1.tar.bz2 linux-stable-8856dfa3e9b71ac2177016f66ace3a8978afecc1.zip | |
[SK_BUFF]: Use skb_reset_network_header after skb_push
Some more cases where skb->nh.iph was being set that were converted
to using skb_reset_network_header.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/ip_output.c | 14 | ||||
| -rw-r--r-- | net/ipv4/ipmr.c | 9 |
2 files changed, 12 insertions, 11 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index dde51fb72cda..99cd90c22310 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -125,11 +125,9 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk, struct iphdr *iph; /* Build the IP header. */ - if (opt) - iph=(struct iphdr *)skb_push(skb,sizeof(struct iphdr) + opt->optlen); - else - iph=(struct iphdr *)skb_push(skb,sizeof(struct iphdr)); - + skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0)); + skb_reset_network_header(skb); + iph = skb->nh.iph; iph->version = 4; iph->ihl = 5; iph->tos = inet->tos; @@ -143,7 +141,6 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk, iph->protocol = sk->sk_protocol; iph->tot_len = htons(skb->len); ip_select_ident(iph, &rt->u.dst, sk); - skb->nh.iph = iph; if (opt && opt->optlen) { iph->ihl += opt->optlen>>2; @@ -333,7 +330,9 @@ packet_routed: goto no_route; /* OK, we know where to send it, allocate and build IP header. */ - iph = (struct iphdr *) skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0)); + skb_push(skb, sizeof(struct iphdr) + (opt ? opt->optlen : 0)); + skb_reset_network_header(skb); + iph = skb->nh.iph; *((__be16 *)iph) = htons((4 << 12) | (5 << 8) | (inet->tos & 0xff)); iph->tot_len = htons(skb->len); if (ip_dont_fragment(sk, &rt->u.dst) && !ipfragok) @@ -344,7 +343,6 @@ packet_routed: iph->protocol = sk->sk_protocol; iph->saddr = rt->rt_src; iph->daddr = rt->rt_dst; - skb->nh.iph = iph; /* Transport layer set skb->h.foo itself. */ if (opt && opt->optlen) { diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 45435f0a5d6c..51528d3cc334 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1093,7 +1093,12 @@ static struct notifier_block ip_mr_notifier={ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr) { - struct iphdr *iph = (struct iphdr *)skb_push(skb,sizeof(struct iphdr)); + struct iphdr *iph; + + skb_push(skb, sizeof(struct iphdr)); + skb->h.ipiph = skb->nh.iph; + skb_reset_network_header(skb); + iph = skb->nh.iph; iph->version = 4; iph->tos = skb->nh.iph->tos; @@ -1107,8 +1112,6 @@ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr) ip_select_ident(iph, skb->dst, NULL); ip_send_check(iph); - skb->h.ipiph = skb->nh.iph; - skb->nh.iph = iph; memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt)); nf_reset(skb); } |