network: introduce radv_prefix_delegation_{from,to}_string()

1 files changed, 20 insertions, 14 deletions

diff --git a/src/network/networkd-radv.c b/src/network/networkd-radv.c
index 9b393d82a0..dc8b24a238 100644
--- a/src/network/networkd-radv.c
+++ b/src/network/networkd-radv.c
@@ -12,8 +12,21 @@
 #include "parse-util.h"
 #include "sd-radv.h"
 #include "string-util.h"
+#include "string-table.h"
 #include "strv.h"
 
+static const char * const radv_prefix_delegation_table[_RADV_PREFIX_DELEGATION_MAX] = {
+        [RADV_PREFIX_DELEGATION_NONE] = "no",
+        [RADV_PREFIX_DELEGATION_STATIC] = "static",
+        [RADV_PREFIX_DELEGATION_DHCP6] = "dhcpv6",
+        [RADV_PREFIX_DELEGATION_BOTH] = "yes",
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(
+                radv_prefix_delegation,
+                RADVPrefixDelegation,
+                RADV_PREFIX_DELEGATION_BOTH);
+
 int config_parse_router_prefix_delegation(
                 const char *unit,
                 const char *filename,
@@ -27,7 +40,7 @@ int config_parse_router_prefix_delegation(
                 void *userdata) {
 
         Network *network = userdata;
-        int d;
+        RADVPrefixDelegation d;
 
         assert(filename);
         assert(section);
@@ -35,21 +48,14 @@ int config_parse_router_prefix_delegation(
         assert(rvalue);
         assert(data);
 
-        if (streq(rvalue, "static"))
-                network->router_prefix_delegation = RADV_PREFIX_DELEGATION_STATIC;
-        else if (streq(rvalue, "dhcpv6"))
-                network->router_prefix_delegation = RADV_PREFIX_DELEGATION_DHCP6;
-        else {
-                d = parse_boolean(rvalue);
-                if (d > 0)
-                        network->router_prefix_delegation = RADV_PREFIX_DELEGATION_BOTH;
-                else
-                        network->router_prefix_delegation = RADV_PREFIX_DELEGATION_NONE;
-
-                if (d < 0)
-                        log_syntax(unit, LOG_ERR, filename, line, -EINVAL, "Router prefix delegation '%s' is invalid, ignoring assignment: %m", rvalue);
+        d = radv_prefix_delegation_from_string(rvalue);
+        if (d < 0) {
+                log_syntax(unit, LOG_ERR, filename, line, -EINVAL, "Invalid router prefix delegation '%s', ignoring assignment.", rvalue);
+                return 0;
         }
 
+        network->router_prefix_delegation = d;
+
         return 0;
 }