Commit f74024d9 authored Nov 07, 2011 by Maciej Żenczykowski Committed by David S. Miller Nov 08, 2011

net: make ipv6 bind honour freebind



This makes native ipv6 bind follow the precedent set by:
  - native ipv4 bind behaviour
  - dual stack ipv4-mapped ipv6 bind behaviour.

This does allow an unpriviledged process to spoof its source IPv6
address, just like it currently can spoof its source IPv4 address
(for example when using UDP).

Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 68aad78c

net/ipv6/af_inet6.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -347,7 +347,7 @@ int inet6_bind(struct socket sock, struct sockaddr uaddr, int addr_len)
		*/
		v4addr = LOOPBACK4_IPV6;
		if (!(addr_type & IPV6_ADDR_MULTICAST)) {
		if (!inet->transparent &&
		if (!(inet->freebind \|\| inet->transparent) &&
		!ipv6_chk_addr(net, &addr->sin6_addr,
		dev, 0)) {
		err = -EADDRNOTAVAIL;

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