network: further unification of MUD url parsers

Follow-up for 89fa9a6b7b2505aa2ce18febf1e28e79510dfec2.

6 files changed, 16 insertions, 79 deletions

diff --git a/src/network/networkd-dhcp4.c b/src/network/networkd-dhcp4.c
index 8609a63b83..511e4b1bdf 100644
--- a/src/network/networkd-dhcp4.c
+++ b/src/network/networkd-dhcp4.c
@@ -1719,26 +1719,6 @@ int config_parse_dhcp_ip_service_type(
         return 0;
 }
 
-int config_parse_dhcp_mud_url(
-                const char *unit,
-                const char *filename,
-                unsigned line,
-                const char *section,
-                unsigned section_line,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
-
-        Network *network = data;
-
-        assert(network);
-
-        return config_parse_mud_url(unit, filename, line, section, section_line, lvalue, ltype, rvalue,
-                                    &network->dhcp_mudurl);
-}
-
 int config_parse_dhcp_fallback_lease_lifetime(const char *unit,
                 const char *filename,
                 unsigned line,
diff --git a/src/network/networkd-dhcp6.c b/src/network/networkd-dhcp6.c
index ccf2ec5b3f..2445acbe07 100644
--- a/src/network/networkd-dhcp6.c
+++ b/src/network/networkd-dhcp6.c
@@ -1788,26 +1788,6 @@ int config_parse_dhcp6_pd_hint(
         return 0;
 }
 
-int config_parse_dhcp6_mud_url(
-                const char *unit,
-                const char *filename,
-                unsigned line,
-                const char *section,
-                unsigned section_line,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
-
-        Network *network = data;
-
-        assert(network);
-
-        return config_parse_mud_url(unit, filename, line, section, section_line, lvalue, ltype, rvalue,
-                                    &network->dhcp6_mudurl);
-}
-
 DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp6_client_start_mode, dhcp6_client_start_mode, DHCP6ClientStartMode,
                          "Failed to parse WithoutRA= setting");
 
diff --git a/src/network/networkd-lldp-tx.c b/src/network/networkd-lldp-tx.c
index e6e0b5ee54..061059558e 100644
--- a/src/network/networkd-lldp-tx.c
+++ b/src/network/networkd-lldp-tx.c
@@ -414,26 +414,6 @@ void link_lldp_emit_stop(Link *link) {
         link->lldp_emit_event_source = sd_event_source_unref(link->lldp_emit_event_source);
 }
 
-int config_parse_lldp_mud(
-                const char *unit,
-                const char *filename,
-                unsigned line,
-                const char *section,
-                unsigned section_line,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                void *data,
-                void *userdata) {
-
-        Network *network = data;
-
-        assert(network);
-
-        return config_parse_mud_url(unit, filename, line, section, section_line, lvalue, ltype, rvalue,
-                                    &network->lldp_mud);
-}
-
 static const char * const lldp_emit_table[_LLDP_EMIT_MAX] = {
         [LLDP_EMIT_NO]              = "no",
         [LLDP_EMIT_NEAREST_BRIDGE]  = "nearest-bridge",
diff --git a/src/network/networkd-network-gperf.gperf b/src/network/networkd-network-gperf.gperf
index e3ced5a45c..de4120c47e 100644
--- a/src/network/networkd-network-gperf.gperf
+++ b/src/network/networkd-network-gperf.gperf
@@ -214,7 +214,7 @@ DHCPv4.SendHostname,                         config_parse_bool,
 DHCPv4.Hostname,                             config_parse_hostname,                                    0,                             offsetof(Network, dhcp_hostname)
 DHCPv4.RequestBroadcast,                     config_parse_tristate,                                    0,                             offsetof(Network, dhcp_broadcast)
 DHCPv4.VendorClassIdentifier,                config_parse_string,                                      0,                             offsetof(Network, dhcp_vendor_class_identifier)
-DHCPv4.MUDURL,                               config_parse_dhcp_mud_url,                                0,                             0
+DHCPv4.MUDURL,                               config_parse_mud_url,                                     0,                             offsetof(Network, dhcp_mudurl)
 DHCPv4.MaxAttempts,                          config_parse_dhcp_max_attempts,                           0,                             0
 DHCPv4.UserClass,                            config_parse_dhcp_user_or_vendor_class,                   AF_INET,                       offsetof(Network, dhcp_user_class)
 DHCPv4.IAID,                                 config_parse_iaid,                                        AF_INET,                       0
@@ -239,7 +239,7 @@ DHCPv6.UseHostname,                          config_parse_bool,
 DHCPv6.UseDomains,                           config_parse_dhcp_use_domains,                            0,                             0
 DHCPv6.UseNTP,                               config_parse_dhcp_use_ntp,                                0,                             0
 DHCPv6.RapidCommit,                          config_parse_bool,                                        0,                             offsetof(Network, dhcp6_rapid_commit)
-DHCPv6.MUDURL,                               config_parse_dhcp6_mud_url,                               0,                             0
+DHCPv6.MUDURL,                               config_parse_mud_url,                                     0,                             offsetof(Network, dhcp6_mudurl)
 DHCPv6.RequestOptions,                       config_parse_dhcp_request_options,                        AF_INET6,                      0
 DHCPv6.UserClass,                            config_parse_dhcp_user_or_vendor_class,                   AF_INET6,                      offsetof(Network, dhcp6_user_class)
 DHCPv6.VendorClass,                          config_parse_dhcp_user_or_vendor_class,                   AF_INET6,                      offsetof(Network, dhcp6_vendor_class)
@@ -342,7 +342,7 @@ IPv6Prefix.Assign,                           config_parse_prefix_assign,
 IPv6Prefix.RouteMetric,                      config_parse_prefix_metric,                               0,                             0
 IPv6RoutePrefix.Route,                       config_parse_route_prefix,                                0,                             0
 IPv6RoutePrefix.LifetimeSec,                 config_parse_route_prefix_lifetime,                       0,                             0
-LLDP.MUDURL,                                 config_parse_lldp_mud,                                    0,                             0
+LLDP.MUDURL,                                 config_parse_mud_url,                                     0,                             offsetof(Network, lldp_mud)
 CAN.BitRate,                                 config_parse_can_bitrate,                                 0,                             offsetof(Network, can_bitrate)
 CAN.SamplePoint,                             config_parse_permille,                                    0,                             offsetof(Network, can_sample_point)
 CAN.DataBitRate,                             config_parse_can_bitrate,                                 0,                             offsetof(Network, can_data_bitrate)
diff --git a/src/network/networkd-util.c b/src/network/networkd-util.c
index a6b9a7f8b6..d7906e0cb5 100644
--- a/src/network/networkd-util.c
+++ b/src/network/networkd-util.c
@@ -171,15 +171,22 @@ int config_parse_mud_url(
                 const char *lvalue,
                 int ltype,
                 const char *rvalue,
-                char **ret) {
+                void *data,
+                void *userdata) {
+
+        _cleanup_free_ char *unescaped = NULL;
+        char **url = data;
+        ssize_t l;
 
         assert(filename);
         assert(lvalue);
         assert(rvalue);
-        assert(ret);
+        assert(url);
 
-        _cleanup_free_ char *unescaped = NULL;
-        ssize_t l;
+        if (isempty(rvalue)) {
+                *url = mfree(*url);
+                return 0;
+        }
 
         l = cunescape(rvalue, 0, &unescaped);
         if (l < 0) {
@@ -194,7 +201,7 @@ int config_parse_mud_url(
                 return 0;
         }
 
-        return free_and_replace(*ret, unescaped);
+        return free_and_replace(*url, unescaped);
 }
 
 /* Router lifetime can be set with netlink interface since kernel >= 4.5
diff --git a/src/network/networkd-util.h b/src/network/networkd-util.h
index 7471f18970..997bcee4b4 100644
--- a/src/network/networkd-util.h
+++ b/src/network/networkd-util.h
@@ -22,17 +22,7 @@ typedef struct NetworkConfigSection {
 CONFIG_PARSER_PROTOTYPE(config_parse_link_local_address_family);
 CONFIG_PARSER_PROTOTYPE(config_parse_address_family_with_kernel);
 CONFIG_PARSER_PROTOTYPE(config_parse_ip_masquerade);
-
-int config_parse_mud_url(
-                const char *unit,
-                const char *filename,
-                unsigned line,
-                const char *section,
-                unsigned section_line,
-                const char *lvalue,
-                int ltype,
-                const char *rvalue,
-                char **ret);
+CONFIG_PARSER_PROTOTYPE(config_parse_mud_url);
 
 const char *address_family_to_string(AddressFamily b) _const_;
 AddressFamily address_family_from_string(const char *s) _pure_;