owsd: support to add dhcp domains to origin whitelist so routerlogin.net works

Signed-off-by: Denis Osvald <denis.osvald@sartura.hr>

owsd/files/owsd.init

@@ -1,5 +1,7 @@
 #!/bin/sh /etc/rc.common
 
+. /lib/functions/network.sh
+
 START=90
 STOP=10
 
@@ -37,16 +39,15 @@ validate_owsd_iface() {
 		'interface:string' \
 		'origin:list(string)' \
 		'whitelist_interface_as_origin:bool' \
+		'whitelist_dhcp_domains:bool' \
 		'ipv6:bool' \
 		'ipv6only:bool' \
 		'cert:file' \
 		'key:file'
 }
 
-. /lib/functions/network.sh
-
 parse_owsd_iface() {
-	local port interface whitelist_interface_as_origin ipv6 ipv6only cert key
+	local port interface whitelist_interface_as_origin whitelist_dhcp_domains ipv6 ipv6only cert key
 
 	validate_owsd_iface "$1" || {
 		echo "Validation failed"
@@ -85,6 +86,21 @@ parse_owsd_iface() {
 	fi
 
 	config_list_foreach "$1" "origin" append_origin
+
+	if [ -n "$whitelist_dhcp_domains" ]; then
+		append_domain() {
+			append_origin_parts "http${cert:+s}" "$1" "${port}"
+		}
+
+		dhcp_domain_section() {
+			local ip
+			config_get ip "$1" ip
+			[ -z "$ip" ] && config_list_foreach "$1" "name" append_domain
+		}
+
+		config_load dhcp
+		config_foreach dhcp_domain_section "domain"
+	fi
 }
 
 start_service() {