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/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index f62c2c6..32e36ea 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -786,19 +786,19 @@
switch (tm->tcpm_daddr.family) {
case AF_INET:
- if (nla_put_be32(msg, TCP_METRICS_ATTR_ADDR_IPV4,
- tm->tcpm_daddr.addr.a4) < 0)
+ if (nla_put_in_addr(msg, TCP_METRICS_ATTR_ADDR_IPV4,
+ tm->tcpm_daddr.addr.a4) < 0)
goto nla_put_failure;
- if (nla_put_be32(msg, TCP_METRICS_ATTR_SADDR_IPV4,
- tm->tcpm_saddr.addr.a4) < 0)
+ if (nla_put_in_addr(msg, TCP_METRICS_ATTR_SADDR_IPV4,
+ tm->tcpm_saddr.addr.a4) < 0)
goto nla_put_failure;
break;
case AF_INET6:
- if (nla_put(msg, TCP_METRICS_ATTR_ADDR_IPV6, 16,
- tm->tcpm_daddr.addr.a6) < 0)
+ if (nla_put_in6_addr(msg, TCP_METRICS_ATTR_ADDR_IPV6,
+ &tm->tcpm_daddr.addr.in6) < 0)
goto nla_put_failure;
- if (nla_put(msg, TCP_METRICS_ATTR_SADDR_IPV6, 16,
- tm->tcpm_saddr.addr.a6) < 0)
+ if (nla_put_in6_addr(msg, TCP_METRICS_ATTR_SADDR_IPV6,
+ &tm->tcpm_saddr.addr.in6) < 0)
goto nla_put_failure;
break;
default: