diff options
| -rw-r--r-- | include/net/addrconf.h | 5 | ||||
| -rw-r--r-- | net/ipv6/anycast.c | 11 | ||||
| -rw-r--r-- | net/ipv6/datagram.c | 4 |
3 files changed, 17 insertions, 3 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 66c4a44d8f5c..50e39a8822b4 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -205,8 +205,9 @@ void ipv6_sock_ac_close(struct sock *sk); int ipv6_dev_ac_inc(struct net_device *dev, const struct in6_addr *addr); int __ipv6_dev_ac_dec(struct inet6_dev *idev, const struct in6_addr *addr); bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev, - const struct in6_addr *addr); - + const struct in6_addr *addr); +bool ipv6_chk_acast_addr_src(struct net *net, struct net_device *dev, + const struct in6_addr *addr); /* Device notifier */ int register_inet6addr_notifier(struct notifier_block *nb); diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c index 5a80f15a9de2..210183244689 100644 --- a/net/ipv6/anycast.c +++ b/net/ipv6/anycast.c @@ -383,6 +383,17 @@ bool ipv6_chk_acast_addr(struct net *net, struct net_device *dev, return found; } +/* check if this anycast address is link-local on given interface or + * is global + */ +bool ipv6_chk_acast_addr_src(struct net *net, struct net_device *dev, + const struct in6_addr *addr) +{ + return ipv6_chk_acast_addr(net, + (ipv6_addr_type(addr) & IPV6_ADDR_LINKLOCAL ? + dev : NULL), + addr); +} #ifdef CONFIG_PROC_FS struct ac6_iter_state { diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index 2f5e2f154d21..c3bf2d2e519e 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -699,7 +699,9 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, int strict = __ipv6_addr_src_scope(addr_type) <= IPV6_ADDR_SCOPE_LINKLOCAL; if (!(inet_sk(sk)->freebind || inet_sk(sk)->transparent) && !ipv6_chk_addr(net, &src_info->ipi6_addr, - strict ? dev : NULL, 0)) + strict ? dev : NULL, 0) && + !ipv6_chk_acast_addr_src(net, dev, + &src_info->ipi6_addr)) err = -EINVAL; else fl6->saddr = src_info->ipi6_addr; |