return ip6_pol_route(net, table, fl6->flowi6_iif, fl6, flags);
}
+static struct dst_entry *ip6_route_input_lookup(struct net *net,
+ struct net_device *dev,
+ struct flowi6 *fl6, int flags)
+{
+ if (rt6_need_strict(&fl6->daddr) && dev->type != ARPHRD_PIMREG)
+ flags |= RT6_LOOKUP_F_IFACE;
+
+ return fib6_rule_lookup(net, fl6, flags, ip6_pol_route_input);
+}
+
void ip6_route_input(struct sk_buff *skb)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
.flowi6_proto = iph->nexthdr,
};
- if (rt6_need_strict(&iph->daddr) && skb->dev->type != ARPHRD_PIMREG)
- flags |= RT6_LOOKUP_F_IFACE;
-
- skb_dst_set(skb, fib6_rule_lookup(net, &fl6, flags, ip6_pol_route_input));
+ skb_dst_set(skb, ip6_route_input_lookup(net, skb->dev, &fl6, flags));
}
static struct rt6_info *ip6_pol_route_output(struct net *net, struct fib6_table *table,
else
table = RT6_TABLE_UNSPEC;
rtm->rtm_table = table;
- NLA_PUT_U32(skb, RTA_TABLE, table);
+ if (nla_put_u32(skb, RTA_TABLE, table))
+ goto nla_put_failure;
if (rt->rt6i_flags & RTF_REJECT)
rtm->rtm_type = RTN_UNREACHABLE;
else if (rt->rt6i_flags & RTF_LOCAL)
rtm->rtm_flags |= RTM_F_CLONED;
if (dst) {
- NLA_PUT(skb, RTA_DST, 16, dst);
+ if (nla_put(skb, RTA_DST, 16, dst))
+ goto nla_put_failure;
rtm->rtm_dst_len = 128;
} else if (rtm->rtm_dst_len)
- NLA_PUT(skb, RTA_DST, 16, &rt->rt6i_dst.addr);
+ if (nla_put(skb, RTA_DST, 16, &rt->rt6i_dst.addr))
+ goto nla_put_failure;
#ifdef CONFIG_IPV6_SUBTREES
if (src) {
- NLA_PUT(skb, RTA_SRC, 16, src);
+ if (nla_put(skb, RTA_SRC, 16, src))
+ goto nla_put_failure;
rtm->rtm_src_len = 128;
- } else if (rtm->rtm_src_len)
- NLA_PUT(skb, RTA_SRC, 16, &rt->rt6i_src.addr);
+ } else if (rtm->rtm_src_len &&
+ nla_put(skb, RTA_SRC, 16, &rt->rt6i_src.addr))
+ goto nla_put_failure;
#endif
if (iif) {
#ifdef CONFIG_IPV6_MROUTE
}
} else
#endif
- NLA_PUT_U32(skb, RTA_IIF, iif);
+ if (nla_put_u32(skb, RTA_IIF, iif))
+ goto nla_put_failure;
} else if (dst) {
struct in6_addr saddr_buf;
- if (ip6_route_get_saddr(net, rt, dst, 0, &saddr_buf) == 0)
- NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
+ if (ip6_route_get_saddr(net, rt, dst, 0, &saddr_buf) == 0 &&
+ nla_put(skb, RTA_PREFSRC, 16, &saddr_buf))
+ goto nla_put_failure;
}
if (rt->rt6i_prefsrc.plen) {
struct in6_addr saddr_buf;
saddr_buf = rt->rt6i_prefsrc.addr;
- NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
+ if (nla_put(skb, RTA_PREFSRC, 16, &saddr_buf))
+ goto nla_put_failure;
}
if (rtnetlink_put_metrics(skb, dst_metrics_ptr(&rt->dst)) < 0)
rcu_read_lock();
n = dst_get_neighbour_noref(&rt->dst);
- if (n)
- NLA_PUT(skb, RTA_GATEWAY, 16, &n->primary_key);
+ if (n) {
+ if (nla_put(skb, RTA_GATEWAY, 16, &n->primary_key) < 0) {
+ rcu_read_unlock();
+ goto nla_put_failure;
+ }
+ }
rcu_read_unlock();
- if (rt->dst.dev)
- NLA_PUT_U32(skb, RTA_OIF, rt->dst.dev->ifindex);
-
- NLA_PUT_U32(skb, RTA_PRIORITY, rt->rt6i_metric);
-
+ if (rt->dst.dev &&
+ nla_put_u32(skb, RTA_OIF, rt->dst.dev->ifindex))
+ goto nla_put_failure;
+ if (nla_put_u32(skb, RTA_PRIORITY, rt->rt6i_metric))
+ goto nla_put_failure;
if (!(rt->rt6i_flags & RTF_EXPIRES))
expires = 0;
else if (rt->dst.expires - jiffies < INT_MAX)
struct sk_buff *skb;
struct rtmsg *rtm;
struct flowi6 fl6;
- int err, iif = 0;
+ int err, iif = 0, oif = 0;
err = nlmsg_parse(nlh, sizeof(*rtm), tb, RTA_MAX, rtm_ipv6_policy);
if (err < 0)
iif = nla_get_u32(tb[RTA_IIF]);
if (tb[RTA_OIF])
- fl6.flowi6_oif = nla_get_u32(tb[RTA_OIF]);
+ oif = nla_get_u32(tb[RTA_OIF]);
if (iif) {
struct net_device *dev;
+ int flags = 0;
+
dev = __dev_get_by_index(net, iif);
if (!dev) {
err = -ENODEV;
goto errout;
}
+
+ fl6.flowi6_iif = iif;
+
+ if (!ipv6_addr_any(&fl6.saddr))
+ flags |= RT6_LOOKUP_F_HAS_SADDR;
+
+ rt = (struct rt6_info *)ip6_route_input_lookup(net, dev, &fl6,
+ flags);
+ } else {
+ fl6.flowi6_oif = oif;
+
+ rt = (struct rt6_info *)ip6_route_output(net, NULL, &fl6);
}
skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb) {
+ dst_release(&rt->dst);
err = -ENOBUFS;
goto errout;
}
skb_reset_mac_header(skb);
skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr));
- rt = (struct rt6_info*) ip6_route_output(net, NULL, &fl6);
skb_dst_set(skb, &rt->dst);
err = rt6_fill_node(net, skb, rt, &fl6.daddr, &fl6.saddr, iif,