sd-netlink: introduce sd_rtnl_message_nexthop_get_protocol()

diff --git a/src/libsystemd/sd-netlink/rtnl-message.c b/src/libsystemd/sd-netlink/rtnl-message.c
index b8c11d1181c8f6c3c21aa4bcbb0912823935f9b6..d14fa1a5cb75664a03da2bd23db2c2dd16dd2622 100644 (file)
--- a/src/libsystemd/sd-netlink/rtnl-message.c
+++ b/src/libsystemd/sd-netlink/rtnl-message.c
@@ -329,6 +329,8 @@ int sd_rtnl_message_nexthop_get_family(const sd_netlink_message *m, uint8_t *fam
 
         assert_return(m, -EINVAL);
         assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_nexthop(m->hdr->nlmsg_type), -EINVAL);
+        assert_return(family, -EINVAL);
 
         nhm = NLMSG_DATA(m->hdr);
         *family = nhm->nh_family;
@@ -336,6 +338,20 @@ int sd_rtnl_message_nexthop_get_family(const sd_netlink_message *m, uint8_t *fam
         return 0;
 }
 
+int sd_rtnl_message_nexthop_get_protocol(const sd_netlink_message *m, uint8_t *protocol) {
+        struct nhmsg *nhm;
+
+        assert_return(m, -EINVAL);
+        assert_return(m->hdr, -EINVAL);
+        assert_return(rtnl_message_type_is_nexthop(m->hdr->nlmsg_type), -EINVAL);
+        assert_return(protocol, -EINVAL);
+
+        nhm = NLMSG_DATA(m->hdr);
+        *protocol = nhm->nh_protocol;
+
+        return 0;
+}
+
 int sd_rtnl_message_neigh_set_flags(sd_netlink_message *m, uint8_t flags) {
         struct ndmsg *ndm;
 

diff --git a/src/systemd/sd-netlink.h b/src/systemd/sd-netlink.h
index 8820c65e23017739ab56738ba3db489aec2700a6..276108b38d92013485e2be7a6cc7ec045702e7a7 100644 (file)
--- a/src/systemd/sd-netlink.h
+++ b/src/systemd/sd-netlink.h
@@ -184,6 +184,7 @@ int sd_rtnl_message_route_get_type(const sd_netlink_message *m, unsigned char *t
 int sd_rtnl_message_new_nexthop(sd_netlink *rtnl, sd_netlink_message **ret, uint16_t nhmsg_type, int nh_family, unsigned char nh_protocol);
 int sd_rtnl_message_nexthop_set_flags(sd_netlink_message *m, uint8_t flags);
 int sd_rtnl_message_nexthop_get_family(const sd_netlink_message *m, uint8_t *family);
+int sd_rtnl_message_nexthop_get_protocol(const sd_netlink_message *m, uint8_t *protocol);
 
 int sd_rtnl_message_new_neigh(sd_netlink *nl, sd_netlink_message **ret, uint16_t msg_type, int index, int nda_family);
 int sd_rtnl_message_neigh_set_flags(sd_netlink_message *m, uint8_t flags);