diff options
Diffstat (limited to 'net/ipv6/ndisc.c')
| -rw-r--r-- | net/ipv6/ndisc.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 4c4ccf79d2c5..5733cd27f4a3 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1355,12 +1355,11 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) struct net_device *dev = skb->dev; struct net *net = dev_net(dev); struct sock *sk = net->ipv6.ndisc_sk; - int len = sizeof(struct icmp6hdr) + 2 * sizeof(struct in6_addr); + int len = sizeof(struct rd_msg); struct inet_peer *peer; struct sk_buff *buff; - struct icmp6hdr *icmph; + struct rd_msg *msg; struct in6_addr saddr_buf; - struct in6_addr *addrp; struct rt6_info *rt; struct dst_entry *dst; struct inet6_dev *idev; @@ -1455,21 +1454,19 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) skb_set_transport_header(buff, skb_tail_pointer(buff) - buff->data); skb_put(buff, len); - icmph = icmp6_hdr(buff); + msg = (struct rd_msg *)icmp6_hdr(buff); - memset(icmph, 0, sizeof(struct icmp6hdr)); - icmph->icmp6_type = NDISC_REDIRECT; + memset(&msg->icmph, 0, sizeof(struct icmp6hdr)); + msg->icmph.icmp6_type = NDISC_REDIRECT; /* * copy target and destination addresses */ - addrp = (struct in6_addr *)(icmph + 1); - *addrp = *target; - addrp++; - *addrp = ipv6_hdr(skb)->daddr; + msg->target = *target; + msg->dest = ipv6_hdr(skb)->daddr; - opt = (u8*) (addrp + 1); + opt = msg->opt; /* * include target_address option @@ -1490,9 +1487,9 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) memcpy(opt, ipv6_hdr(skb), rd_len - 8); - icmph->icmp6_cksum = csum_ipv6_magic(&saddr_buf, &ipv6_hdr(skb)->saddr, - len, IPPROTO_ICMPV6, - csum_partial(icmph, len, 0)); + msg->icmph.icmp6_cksum = csum_ipv6_magic(&saddr_buf, &ipv6_hdr(skb)->saddr, + len, IPPROTO_ICMPV6, + csum_partial(msg, len, 0)); skb_dst_set(buff, dst); rcu_read_lock(); |