network/radv: use hash_ops with destructor for managing prefixes

Author: yuwata

src/network/networkd-network.c

@@ -831,9 +831,9 @@ static Network *network_free(Network *network) {
         hashmap_free_with_destructor(network->bridge_mdb_entries_by_section, bridge_mdb_free);
         ordered_hashmap_free(network->neighbors_by_section);
         hashmap_free(network->address_labels_by_section);
-        hashmap_free_with_destructor(network->prefixes_by_section, prefix_free);
-        hashmap_free_with_destructor(network->route_prefixes_by_section, route_prefix_free);
-        hashmap_free_with_destructor(network->pref64_prefixes_by_section, prefix64_free);
+        hashmap_free(network->prefixes_by_section);
+        hashmap_free(network->route_prefixes_by_section);
+        hashmap_free(network->pref64_prefixes_by_section);
         hashmap_free(network->rules_by_section);
         hashmap_free_with_destructor(network->dhcp_static_leases_by_section, dhcp_static_lease_free);
         ordered_hashmap_free(network->sr_iov_by_section);

src/network/networkd-radv.c

@@ -35,7 +35,7 @@ bool link_radv_enabled(Link *link) {
         return link->network->router_prefix_delegation;
 }
 
-Prefix* prefix_free(Prefix *prefix) {
+static Prefix* prefix_free(Prefix *prefix) {
         if (!prefix)
                 return NULL;
 
@@ -52,6 +52,11 @@ Prefix* prefix_free(Prefix *prefix) {
 
 DEFINE_SECTION_CLEANUP_FUNCTIONS(Prefix, prefix_free);
 
+DEFINE_PRIVATE_HASH_OPS_WITH_VALUE_DESTRUCTOR(
+                prefix_hash_ops_by_section,
+                ConfigSection, config_section_hash_func, config_section_compare_func,
+                Prefix, prefix_free);
+
 static int prefix_new_static(Network *network, const char *filename, unsigned section_line, Prefix **ret) {
         _cleanup_(config_section_freep) ConfigSection *n = NULL;
         _cleanup_(prefix_freep) Prefix *prefix = NULL;
@@ -87,15 +92,15 @@ static int prefix_new_static(Network *network, const char *filename, unsigned se
                 .prefix.preferred_until = USEC_INFINITY,
         };
 
-        r = hashmap_ensure_put(&network->prefixes_by_section, &config_section_hash_ops, prefix->section, prefix);
+        r = hashmap_ensure_put(&network->prefixes_by_section, &prefix_hash_ops_by_section, prefix->section, prefix);
         if (r < 0)
                 return r;
 
         *ret = TAKE_PTR(prefix);
         return 0;
 }
 
-RoutePrefix* route_prefix_free(RoutePrefix *prefix) {
+static RoutePrefix* route_prefix_free(RoutePrefix *prefix) {
         if (!prefix)
                 return NULL;
 
@@ -111,6 +116,11 @@ RoutePrefix* route_prefix_free(RoutePrefix *prefix) {
 
 DEFINE_SECTION_CLEANUP_FUNCTIONS(RoutePrefix, route_prefix_free);
 
+DEFINE_PRIVATE_HASH_OPS_WITH_VALUE_DESTRUCTOR(
+                route_prefix_hash_ops_by_section,
+                ConfigSection, config_section_hash_func, config_section_compare_func,
+                RoutePrefix, route_prefix_free);
+
 static int route_prefix_new_static(Network *network, const char *filename, unsigned section_line, RoutePrefix **ret) {
         _cleanup_(config_section_freep) ConfigSection *n = NULL;
         _cleanup_(route_prefix_freep) RoutePrefix *prefix = NULL;
@@ -143,15 +153,15 @@ static int route_prefix_new_static(Network *network, const char *filename, unsig
                 .route.valid_until = USEC_INFINITY,
         };
 
-        r = hashmap_ensure_put(&network->route_prefixes_by_section, &config_section_hash_ops, prefix->section, prefix);
+        r = hashmap_ensure_put(&network->route_prefixes_by_section, &route_prefix_hash_ops_by_section, prefix->section, prefix);
         if (r < 0)
                 return r;
 
         *ret = TAKE_PTR(prefix);
         return 0;
 }
 
-Prefix64* prefix64_free(Prefix64 *prefix) {
+static Prefix64* prefix64_free(Prefix64 *prefix) {
         if (!prefix)
                 return NULL;
 
@@ -167,6 +177,11 @@ Prefix64* prefix64_free(Prefix64 *prefix) {
 
 DEFINE_SECTION_CLEANUP_FUNCTIONS(Prefix64, prefix64_free);
 
+DEFINE_PRIVATE_HASH_OPS_WITH_VALUE_DESTRUCTOR(
+                prefix64_hash_ops_by_section,
+                ConfigSection, config_section_hash_func, config_section_compare_func,
+                Prefix64, prefix64_free);
+
 static int prefix64_new_static(Network *network, const char *filename, unsigned section_line, Prefix64 **ret) {
         _cleanup_(config_section_freep) ConfigSection *n = NULL;
         _cleanup_(prefix64_freep) Prefix64 *prefix = NULL;
@@ -199,7 +214,7 @@ static int prefix64_new_static(Network *network, const char *filename, unsigned
                 .prefix64.valid_until = USEC_INFINITY,
         };
 
-        r = hashmap_ensure_put(&network->pref64_prefixes_by_section, &config_section_hash_ops, prefix->section, prefix);
+        r = hashmap_ensure_put(&network->pref64_prefixes_by_section, &prefix64_hash_ops_by_section, prefix->section, prefix);
         if (r < 0)
                 return r;
 
@@ -809,9 +824,9 @@ void network_adjust_radv(Network *network) {
         }
 
         if (!FLAGS_SET(network->router_prefix_delegation, RADV_PREFIX_DELEGATION_STATIC)) {
-                network->prefixes_by_section = hashmap_free_with_destructor(network->prefixes_by_section, prefix_free);
-                network->route_prefixes_by_section = hashmap_free_with_destructor(network->route_prefixes_by_section, route_prefix_free);
-                network->pref64_prefixes_by_section = hashmap_free_with_destructor(network->pref64_prefixes_by_section, prefix64_free);
+                network->prefixes_by_section = hashmap_free(network->prefixes_by_section);
+                network->route_prefixes_by_section = hashmap_free(network->route_prefixes_by_section);
+                network->pref64_prefixes_by_section = hashmap_free(network->pref64_prefixes_by_section);
         }
 
         if (!network->router_prefix_delegation)

src/network/networkd-radv.h

@@ -52,10 +52,6 @@ typedef struct Prefix64 {
         sd_ndisc_prefix64 prefix64;
 } Prefix64;
 
-Prefix* prefix_free(Prefix *prefix);
-RoutePrefix* route_prefix_free(RoutePrefix *prefix);
-Prefix64* prefix64_free(Prefix64 *prefix);
-
 void network_adjust_radv(Network *network);
 
 int link_request_radv_addresses(Link *link);