diff options
Diffstat (limited to 'net/ipv6/route.c')
| -rw-r--r-- | net/ipv6/route.c | 31 |
1 files changed, 25 insertions, 6 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 947ed1ded026..2413a0637d99 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -527,7 +527,7 @@ static void rt6_probe_deferred(struct work_struct *w) container_of(w, struct __rt6_probe_work, work); addrconf_addr_solict_mult(&work->target, &mcaddr); - ndisc_send_ns(work->dev, &work->target, &mcaddr, NULL); + ndisc_send_ns(work->dev, &work->target, &mcaddr, NULL, 0); dev_put(work->dev); kfree(work); } @@ -1364,6 +1364,9 @@ static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk, if (rt6->rt6i_flags & RTF_LOCAL) return; + if (dst_metric_locked(dst, RTAX_MTU)) + return; + dst_confirm(dst); mtu = max_t(u32, mtu, IPV6_MIN_MTU); if (mtu >= dst_mtu(dst)) @@ -1405,7 +1408,7 @@ static void ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk, } void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu, - int oif, u32 mark) + int oif, u32 mark, kuid_t uid) { const struct ipv6hdr *iph = (struct ipv6hdr *) skb->data; struct dst_entry *dst; @@ -1417,6 +1420,7 @@ void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu, fl6.daddr = iph->daddr; fl6.saddr = iph->saddr; fl6.flowlabel = ip6_flowinfo(iph); + fl6.flowi6_uid = uid; dst = ip6_route_output(net, NULL, &fl6); if (!dst->error) @@ -1430,7 +1434,7 @@ void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu) struct dst_entry *dst; ip6_update_pmtu(skb, sock_net(sk), mtu, - sk->sk_bound_dev_if, sk->sk_mark); + sk->sk_bound_dev_if, sk->sk_mark, sk->sk_uid); dst = __sk_dst_get(sk); if (!dst || !dst->obsolete || @@ -1522,7 +1526,8 @@ static struct dst_entry *ip6_route_redirect(struct net *net, flags, __ip6_route_redirect); } -void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark) +void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark, + kuid_t uid) { const struct ipv6hdr *iph = (struct ipv6hdr *) skb->data; struct dst_entry *dst; @@ -1535,6 +1540,7 @@ void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark) fl6.daddr = iph->daddr; fl6.saddr = iph->saddr; fl6.flowlabel = ip6_flowinfo(iph); + fl6.flowi6_uid = uid; dst = ip6_route_redirect(net, &fl6, &ipv6_hdr(skb)->saddr); rt6_do_redirect(dst, NULL, skb); @@ -1556,6 +1562,7 @@ void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif, fl6.flowi6_mark = mark; fl6.daddr = msg->dest; fl6.saddr = iph->daddr; + fl6.flowi6_uid = sock_net_uid(net, NULL); dst = ip6_route_redirect(net, &fl6, &iph->saddr); rt6_do_redirect(dst, NULL, skb); @@ -1564,7 +1571,8 @@ void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif, void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk) { - ip6_redirect(skb, sock_net(sk), sk->sk_bound_dev_if, sk->sk_mark); + ip6_redirect(skb, sock_net(sk), sk->sk_bound_dev_if, sk->sk_mark, + sk->sk_uid); } EXPORT_SYMBOL_GPL(ip6_sk_redirect); @@ -1992,8 +2000,11 @@ static struct rt6_info *ip6_route_info_create(struct fib6_config *cfg) It is very good, but in some (rare!) circumstances (SIT, PtP, NBMA NOARP links) it is handy to allow some exceptions. --ANK + We allow IPv4-mapped nexthops to support RFC4798-type + addressing */ - if (!(gwa_type & IPV6_ADDR_UNICAST)) + if (!(gwa_type & (IPV6_ADDR_UNICAST | + IPV6_ADDR_MAPPED))) goto out; if (cfg->fc_table) { @@ -2758,6 +2769,7 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg) PMTU discouvery. */ if (rt->dst.dev == arg->dev && + dst_metric_raw(&rt->dst, RTAX_MTU) && !dst_metric_locked(&rt->dst, RTAX_MTU)) { if (rt->rt6i_flags & RTF_CACHE) { /* For RTF_CACHE with rt6i_pmtu == 0 @@ -2797,6 +2809,7 @@ static const struct nla_policy rtm_ipv6_policy[RTA_MAX+1] = { [RTA_ENCAP_TYPE] = { .type = NLA_U16 }, [RTA_ENCAP] = { .type = NLA_NESTED }, [RTA_EXPIRES] = { .type = NLA_U32 }, + [RTA_UID] = { .type = NLA_U32 }, }; static int rtm_to_fib6_config(struct sk_buff *skb, struct nlmsghdr *nlh, @@ -3371,6 +3384,12 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh) if (tb[RTA_MARK]) fl6.flowi6_mark = nla_get_u32(tb[RTA_MARK]); + if (tb[RTA_UID]) + fl6.flowi6_uid = make_kuid(current_user_ns(), + nla_get_u32(tb[RTA_UID])); + else + fl6.flowi6_uid = iif ? INVALID_UID : current_uid(); + if (iif) { struct net_device *dev; int flags = 0; |
