[ovs-dev] [RFC PATCH 04/13] netlink: helper functions for ipv6 address in netlink attrs

[Jiri Benc]

Signed-off-by: Jiri Benc <jb...@redhat.com>
---
 lib/netlink.c | 18 ++++++++++++++++++
 lib/netlink.h |  3 +++
 2 files changed, 21 insertions(+)

diff --git a/lib/netlink.c b/lib/netlink.c
index 09723b24da1b..fbf62bdd93d1 100644
--- a/lib/netlink.c
+++ b/lib/netlink.c
@@ -308,6 +308,15 @@ nl_msg_put_be64(struct ofpbuf *msg, uint16_t type, 
ovs_be64 value)
     nl_msg_put_unspec(msg, type, &value, sizeof value);
 }
 
+/* Appends a Netlink attribute of the given 'type' and the given IPv6
+ * address order 'value' to 'msg'. */
+void
+nl_msg_put_in6_addr(struct ofpbuf *msg, uint16_t type,
+                    const struct in6_addr *value)
+{
+    nl_msg_put_unspec(msg, type, value, sizeof *value);
+}
+
 /* Appends a Netlink attribute of the given 'type' and the given odp_port_t
  * 'value' to 'msg'. */
 void
@@ -603,6 +612,15 @@ nl_attr_get_be64(const struct nlattr *nla)
     return get_32aligned_be64(x);
 }
 
+/* Returns the IPv6 address value in 'nla''s payload.
+ *
+ * Asserts that 'nla''s payload is at least 16 bytes long. */
+struct in6_addr
+nl_attr_get_in6_addr(const struct nlattr *nla)
+{
+    return NL_ATTR_GET_AS(nla, struct in6_addr);
+}
+
 /* Returns the 32-bit odp_port_t value in 'nla''s payload.
  *
  * Asserts that 'nla''s payload is at least 4 bytes long. */
diff --git a/lib/netlink.h b/lib/netlink.h
index 6068f5dfd693..76f1f85ac154 100644
--- a/lib/netlink.h
+++ b/lib/netlink.h
@@ -69,6 +69,8 @@ void nl_msg_put_u64(struct ofpbuf *, uint16_t type, uint64_t 
value);
 void nl_msg_put_be16(struct ofpbuf *, uint16_t type, ovs_be16 value);
 void nl_msg_put_be32(struct ofpbuf *, uint16_t type, ovs_be32 value);
 void nl_msg_put_be64(struct ofpbuf *, uint16_t type, ovs_be64 value);
+void nl_msg_put_in6_addr(struct ofpbuf *msg, uint16_t type,
+                         const struct in6_addr *value);
 void nl_msg_put_odp_port(struct ofpbuf *, uint16_t type, odp_port_t value);
 void nl_msg_put_string(struct ofpbuf *, uint16_t type, const char *value);
 
@@ -189,6 +191,7 @@ uint64_t nl_attr_get_u64(const struct nlattr *);
 ovs_be16 nl_attr_get_be16(const struct nlattr *);
 ovs_be32 nl_attr_get_be32(const struct nlattr *);
 ovs_be64 nl_attr_get_be64(const struct nlattr *);
+struct in6_addr nl_attr_get_in6_addr(const struct nlattr *nla);
 odp_port_t nl_attr_get_odp_port(const struct nlattr *);
 const char *nl_attr_get_string(const struct nlattr *);
 void nl_attr_get_nested(const struct nlattr *, struct ofpbuf *);
-- 
1.8.3.1

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