netlink: implement nla_put_in_addr and nla_put_in6_addr
IP addresses are often stored in netlink attributes. Add generic functions
to do that.
For nla_put_in_addr, it would be nicer to pass struct in_addr but this is
not used universally throughout the kernel, in way too many places __be32 is
used to store IPv4 address.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 66c1e4f..453b24e 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1015,7 +1015,7 @@
rtm->rtm_protocol = fi->fib_protocol;
if (rtm->rtm_dst_len &&
- nla_put_be32(skb, RTA_DST, dst))
+ nla_put_in_addr(skb, RTA_DST, dst))
goto nla_put_failure;
if (fi->fib_priority &&
nla_put_u32(skb, RTA_PRIORITY, fi->fib_priority))
@@ -1024,11 +1024,11 @@
goto nla_put_failure;
if (fi->fib_prefsrc &&
- nla_put_be32(skb, RTA_PREFSRC, fi->fib_prefsrc))
+ nla_put_in_addr(skb, RTA_PREFSRC, fi->fib_prefsrc))
goto nla_put_failure;
if (fi->fib_nhs == 1) {
if (fi->fib_nh->nh_gw &&
- nla_put_be32(skb, RTA_GATEWAY, fi->fib_nh->nh_gw))
+ nla_put_in_addr(skb, RTA_GATEWAY, fi->fib_nh->nh_gw))
goto nla_put_failure;
if (fi->fib_nh->nh_oif &&
nla_put_u32(skb, RTA_OIF, fi->fib_nh->nh_oif))
@@ -1058,7 +1058,7 @@
rtnh->rtnh_ifindex = nh->nh_oif;
if (nh->nh_gw &&
- nla_put_be32(skb, RTA_GATEWAY, nh->nh_gw))
+ nla_put_in_addr(skb, RTA_GATEWAY, nh->nh_gw))
goto nla_put_failure;
#ifdef CONFIG_IP_ROUTE_CLASSID
if (nh->nh_tclassid &&