networkd: address - introduce address_is_ready()

Checks that a given address is not tentative nor deprecated.

src/network/networkd-address.c

@@ -738,3 +738,9 @@ int config_parse_label(const char *unit,
 
         return 0;
 }
+
+bool address_is_ready(const Address *a) {
+        assert(a);
+
+        return !(a->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED));
+}

src/network/networkd-address.h

@@ -67,6 +67,7 @@ int address_configure(Address *address, Link *link, sd_netlink_message_handler_t
 int address_update(Address *address, Link *link, sd_netlink_message_handler_t callback);
 int address_remove(Address *address, Link *link, sd_netlink_message_handler_t callback);
 bool address_equal(Address *a1, Address *a2);
+bool address_is_ready(const Address *a);
 
 DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
 #define _cleanup_address_free_ _cleanup_(address_freep)

src/network/networkd-link.c

@@ -2275,7 +2275,7 @@ static void link_update_operstate(Link *link) {
 
                 /* if we have carrier, check what addresses we have */
                 SET_FOREACH(address, link->addresses, i) {
-                        if (address->flags & (IFA_F_TENTATIVE | IFA_F_DEPRECATED))
+                        if (!address_is_ready(address))
                                 continue;
 
                         if (address->scope < scope)