continued enhancements for multi-wan capabilities

skyweave/handlers/network.lua

@@ -6,21 +6,22 @@ local network_handler = {}
 
 -- Original: function handlers.get_network_config(params)
 function network_handler.get_network_config(request_context)
-  local iface = request_context.query.interface or "wan" -- Default to "wan"
+  local wan_iface_name = request_context.query.interface or "wan" -- Default to "wan"
+  local wan_lte_iface_name = "wan_lte"
 
   -- Ensure utils are available for these calls
-  local live_dns_list, live_search_domains = utils.get_live_dns_servers_from_resolv(iface)
+  local live_wan_dns_list, live_search_domains = utils.get_live_dns_servers_from_resolv(wan_iface_name)
   local live_gateway_ip, live_gateway_iface = utils.get_active_default_gateway()
 
   -- get_live_interface_info returns: address, mask, device, leasetime, error_message
-  local live_wan_ip, live_wan_netmask, ifname, dhcp_lease_time, err_msg_live_info = utils.get_live_interface_info(iface)
+  local live_wan_ip, live_wan_netmask, ifname, dhcp_lease_time, err_msg_live_info = utils.get_live_interface_info(wan_iface_name)
 
   local station_info, err = utils.get_station_dump_info("vif-sta0")
 
   -- Handle potential error from get_live_interface_info if needed, e.g. log err_msg_live_info
 
   local response_data = { errCode = 0, errMsg = "OK"}
-  response_data.wwan = {
+  response_data.wan = {
       ssid = utils.uci_get("wireless.wwan.ssid") or "",
       bssid = station_info.bssid or "",
       tx_rate = station_info["tx bitrate"],
@@ -29,13 +30,14 @@ function network_handler.get_network_config(request_context)
       encryption = utils.uci_get("wireless.wwan.encryption") or "",
       key = utils.uci_get("wireless.wwan.key") or "",
       device = utils.uci_get("wireless.wwan.device") or "",
-      wan_dns1 = live_dns_list and live_dns_list[1] or "",
-      wan_dns2 = live_dns_list and live_dns_list[2] or "",
-      wan_gateway = live_gateway_ip or "",
+      wan_dns1 = live_wan_dns_list and live_wan_dns_list[1] or "",
+      wan_dns2 = live_wan_dns_list and live_wan_dns_list[2] or "",
+      --wan_gateway = live_gateway_ip or "",
+      wan_gateway = utils.get_gateway_for_interface("vif-sta0") or "",
       wan_ip = live_wan_ip or "",
       wan_netmask = live_wan_netmask or "",
       wan_ifname = ifname or "", -- from get_live_interface_info
-      wan_iface = iface, -- the logical interface name queried
+      wan_iface = wan_iface_name, -- the logical interface name queried
       wan_dhcp_lease_time = dhcp_lease_time or "" -- from get_live_interface_info
   }
   response_data.lan = {
@@ -48,9 +50,10 @@ function network_handler.get_network_config(request_context)
       domain = utils.uci_get("dhcp.@dnsmasq[0].domain") or "",
       ignore = utils.uci_get("dhcp.lan.ignore") or "" -- bool, uci_get returns "0" or "1"
   }
-  response_data.lte = {
+  response_data.wan_lte = {
       imei = utils.get_modem_imei() or "",
-      iccid = utils.get_sim_iccid() or ""
+      iccid = utils.get_sim_iccid() or "",
+      wan_gateway = utils.get_gateway_for_interface("wwan0") or "",
   }
   return response_data
 end

skyweave/utils.lua

@@ -265,6 +265,36 @@ function utils.get_active_default_gateway()
     return active_route.gateway, active_route.iface
 end
 
+---
+-- Retrieves the configured gateway for a specific interface by name, regardless of its metric.
+-- This is achieved by executing a shell command via the popen rite.
+-- @param interface_name (string) The name of the interface (e.g., "wwan0", "vif-sta0").
+-- @return (string) The gateway IP address, or nil if not found.
+--
+function utils.get_gateway_for_interface(interface_name)
+    -- We shall not suffer an unsanctioned interface name to proceed.
+    if not interface_name or (interface_name ~= "wwan0" and interface_name ~= "vif-sta0") then
+        -- Log the transgression and reject the impure input.
+        logger -t GHI-UTILS "Rejected unsanctified interface name: " .. tostring(interface_name)
+        return nil
+    end
+
+    -- Construct the sacred shell incantation using the provided interface name.
+    local command = string.format("route -n | grep '^0\\.0\\.0\\.0' | grep '%s' | awk '{print $2}'", interface_name)
+
+    -- Invoke the command and receive its output.
+    local gateway_ip_raw = utils.execute_command(command)
+
+    if gateway_ip_raw and gateway_ip_raw ~= "" then
+        -- Purify the output, removing the taint of newlines and whitespace to return only the IP.
+        local gateway_ip = gateway_ip_raw:match("^(%S+)")
+        return gateway_ip
+    end
+
+    -- If no gateway was found, the path is unknown.
+    return nil
+end
+
 -- =============================================================================
 -- A new litany to parse the data-psalms of 'iw dev station dump'
 -- Transmutes the raw text into a structured Lua table.