From 7b3d9b06d8b6407fe25e00e627b48ec0d4a2a076 Mon Sep 17 00:00:00 2001 From: =?utf8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?= =?utf8?q?=E6=98=8E?= Date: Mon, 21 Jan 2013 06:49:08 +0000 Subject: [PATCH] ndisc: Fill in ICMPv6 checksum and IPv6 header in ndisc_send_skb(). Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- net/ipv6/ndisc.c | 24 ++++++++---------------- 1 file changed, 8 insertions(+), 16 deletions(-) diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 437781c2af4..dda4addf291 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -420,8 +420,6 @@ static struct sk_buff *ndisc_build_skb(struct net_device *dev, const struct in6_addr *target, int llinfo) { - struct net *net = dev_net(dev); - struct sock *sk = net->ipv6.ndisc_sk; struct sk_buff *skb; struct icmp6hdr *hdr; int len; @@ -453,13 +451,6 @@ static struct sk_buff *ndisc_build_skb(struct net_device *dev, if (llinfo) ndisc_fill_addr_option(skb, llinfo, dev->dev_addr); - hdr->icmp6_cksum = csum_ipv6_magic(saddr, daddr, skb->len, - IPPROTO_ICMPV6, - csum_partial(hdr, - skb->len, 0)); - - ip6_nd_hdr(skb, saddr, daddr, inet6_sk(sk)->hop_limit, skb->len); - return skb; } @@ -469,6 +460,7 @@ static void ndisc_send_skb(struct sk_buff *skb, { struct dst_entry *dst = skb_dst(skb); struct net *net = dev_net(skb->dev); + struct sock *sk = net->ipv6.ndisc_sk; struct inet6_dev *idev; int err; struct icmp6hdr *icmp6h = icmp6_hdr(skb); @@ -490,6 +482,13 @@ static void ndisc_send_skb(struct sk_buff *skb, skb_dst_set(skb, dst); } + icmp6h->icmp6_cksum = csum_ipv6_magic(saddr, daddr, skb->len, + IPPROTO_ICMPV6, + csum_partial(icmp6h, + skb->len, 0)); + + ip6_nd_hdr(skb, saddr, daddr, inet6_sk(sk)->hop_limit, skb->len); + rcu_read_lock(); idev = __in6_dev_get(dst->dev); IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len); @@ -1508,13 +1507,6 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) if (rd_len) ndisc_fill_redirect_hdr_option(buff, skb, rd_len); - msg->icmph.icmp6_cksum = csum_ipv6_magic(&saddr_buf, &ipv6_hdr(skb)->saddr, - buff->len, IPPROTO_ICMPV6, - csum_partial(msg, buff->len, 0)); - - ip6_nd_hdr(buff, &saddr_buf, &ipv6_hdr(skb)->saddr, - inet6_sk(sk)->hop_limit, buff->len); - skb_dst_set(buff, dst); ndisc_send_skb(buff, &ipv6_hdr(skb)->saddr, &saddr_buf); return; -- 2.46.0