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Diffstat (limited to 'net/ipv6/route.c')
-rw-r--r--net/ipv6/route.c50
1 files changed, 29 insertions, 21 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index bc4888d902b2..0aefc36f74c7 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -82,7 +82,7 @@ static void ip6_rt_update_pmtu(struct dst_entry *dst, u32 mtu);
static struct rt6_info *rt6_add_route_info(struct net *net,
const struct in6_addr *prefix, int prefixlen,
const struct in6_addr *gwaddr, int ifindex,
- unsigned pref);
+ unsigned int pref);
static struct rt6_info *rt6_get_route_info(struct net *net,
const struct in6_addr *prefix, int prefixlen,
const struct in6_addr *gwaddr, int ifindex);
@@ -1887,7 +1887,7 @@ out:
static struct rt6_info *rt6_add_route_info(struct net *net,
const struct in6_addr *prefix, int prefixlen,
const struct in6_addr *gwaddr, int ifindex,
- unsigned pref)
+ unsigned int pref)
{
struct fib6_config cfg = {
.fc_table = RT6_TABLE_INFO,
@@ -2217,10 +2217,9 @@ void rt6_ifdown(struct net *net, struct net_device *dev)
icmp6_clean_all(fib6_ifdown, &adn);
}
-struct rt6_mtu_change_arg
-{
+struct rt6_mtu_change_arg {
struct net_device *dev;
- unsigned mtu;
+ unsigned int mtu;
};
static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg)
@@ -2262,7 +2261,7 @@ static int rt6_mtu_change_route(struct rt6_info *rt, void *p_arg)
return 0;
}
-void rt6_mtu_change(struct net_device *dev, unsigned mtu)
+void rt6_mtu_change(struct net_device *dev, unsigned int mtu)
{
struct rt6_mtu_change_arg arg = {
.dev = dev,
@@ -2430,7 +2429,8 @@ static int rt6_fill_node(struct net *net,
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)
@@ -2453,16 +2453,20 @@ static int rt6_fill_node(struct net *net,
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
@@ -2480,17 +2484,20 @@ static int rt6_fill_node(struct net *net,
}
} 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)
@@ -2506,11 +2513,11 @@ static int rt6_fill_node(struct net *net,
}
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)
@@ -2615,6 +2622,7 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void
skb = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb) {
+ dst_release(&rt->dst);
err = -ENOBUFS;
goto errout;
}