network/routing-policy-rule: manage all flags

Currently, only FIB_RULE_INVERT flag can be configurable, but for
simplicity and future extension, let's manage all flags.

No functional change, just refactoring.

src/network/networkd-json.c

@@ -316,7 +316,7 @@ static int routing_policy_rule_append_json(RoutingPolicyRule *rule, sd_json_vari
                         SD_JSON_BUILD_PAIR_UNSIGNED("FirewallMask", rule->fwmask),
                         JSON_BUILD_PAIR_UNSIGNED_NON_ZERO("Table", rule->table),
                         JSON_BUILD_PAIR_STRING_NON_EMPTY("TableString", table),
-                        SD_JSON_BUILD_PAIR_BOOLEAN("Invert", rule->invert_rule),
+                        SD_JSON_BUILD_PAIR_BOOLEAN("Invert", FLAGS_SET(rule->flags, FIB_RULE_INVERT)),
                         SD_JSON_BUILD_PAIR_CONDITION(rule->suppress_prefixlen >= 0,
                                                      "SuppressPrefixLength", SD_JSON_BUILD_UNSIGNED(rule->suppress_prefixlen)),
                         SD_JSON_BUILD_PAIR_CONDITION(rule->suppress_ifgroup >= 0,

src/network/networkd-routing-policy-rule.c

@@ -524,11 +524,9 @@ static int routing_policy_rule_set_netlink_message(const RoutingPolicyRule *rule
                         return r;
         }
 
-        if (rule->invert_rule) {
-                r = sd_rtnl_message_routing_policy_rule_set_flags(m, FIB_RULE_INVERT);
-                if (r < 0)
-                        return r;
-        }
+        r = sd_rtnl_message_routing_policy_rule_set_flags(m, rule->flags);
+        if (r < 0)
+                return r;
 
         if (rule->l3mdev) {
                 r = sd_netlink_message_append_u8(m, FRA_L3MDEV, 1);
@@ -929,13 +927,11 @@ int manager_rtnl_process_rule(sd_netlink *rtnl, sd_netlink_message *message, Man
                 }
         }
 
-        unsigned flags;
-        r = sd_rtnl_message_routing_policy_rule_get_flags(message, &flags);
+        r = sd_rtnl_message_routing_policy_rule_get_flags(message, &tmp->flags);
         if (r < 0) {
                 log_warning_errno(r, "rtnl: received rule message without valid flag, ignoring: %m");
                 return 0;
         }
-        tmp->invert_rule = flags & FIB_RULE_INVERT;
 
         r = sd_netlink_message_read_u32(message, FRA_FWMARK, &tmp->fwmark);
         if (r < 0 && r != -ENODATA) {
@@ -1487,7 +1483,7 @@ int config_parse_routing_policy_rule_invert(
                 return 0;
         }
 
-        n->invert_rule = r;
+        SET_FLAG(n->flags, FIB_RULE_INVERT, r);
 
         TAKE_PTR(n);
         return 0;

src/network/networkd-routing-policy-rule.h

@@ -27,7 +27,7 @@ typedef struct RoutingPolicyRule {
         uint8_t from_prefixlen;
         uint8_t tos;
         uint8_t type; /* a.k.a action */
-        bool invert_rule; /* used for flags */
+        uint32_t flags;
 
         /* attributes */
         union in_addr_union to; /* FRA_DST */