wpasvc: Add skip_on_error registry value to skip interfaces on error

This can be used to include binding information for multiple interfaces
in Windows registry and only use the ones that match with an available
network interface.

diff --git a/wpa_supplicant/main_winsvc.c b/wpa_supplicant/main_winsvc.c
index 6d416fd..4b072fc 100644 (file)
--- a/wpa_supplicant/main_winsvc.c
+++ b/wpa_supplicant/main_winsvc.c
@@ -70,9 +70,10 @@ static int read_interface(struct wpa_global *global, HKEY _hk,
        HKEY hk;
 #define TBUFLEN 255
        TCHAR adapter[TBUFLEN], config[TBUFLEN], ctrl_interface[TBUFLEN];
-       DWORD buflen;
+       DWORD buflen, val;
        LONG ret;
        struct wpa_interface iface;
+       int skip_on_error = 0;
 
        ret = RegOpenKeyEx(_hk, name, 0, KEY_QUERY_VALUE, &hk);
        if (ret != ERROR_SUCCESS) {
@@ -116,10 +117,21 @@ static int read_interface(struct wpa_global *global, HKEY _hk,
                iface.confname = (char *) config;
        }
 
+       buflen = sizeof(val);
+       ret = RegQueryValueEx(hk, TEXT("skip_on_error"), NULL, NULL,
+                             (LPBYTE) &val, &buflen);
+       if (ret == ERROR_SUCCESS && buflen == sizeof(val))
+               skip_on_error = val;
+
        RegCloseKey(hk);
 
-       if (wpa_supplicant_add_iface(global, &iface) == NULL)
-               return -1;
+       if (wpa_supplicant_add_iface(global, &iface) == NULL) {
+               if (skip_on_error)
+                       wpa_printf(MSG_DEBUG, "Skipped interface '%s' due to "
+                                  "initialization failure", iface.ifname);
+               else
+                       return -1;
+       }
 
        return 0;
 }

diff --git a/wpa_supplicant/win_example.reg b/wpa_supplicant/win_example.reg
index 876c53c..875d4ef 100755 (executable)
--- a/wpa_supplicant/win_example.reg
+++ b/wpa_supplicant/win_example.reg
@@ -38,4 +38,5 @@ REGEDIT4
 "adapter"="{A7627643-C310-49E5-BD89-7E77709C04AB}"\r
 "config"="test"\r
 "ctrl_interface"=""\r
+"skip_on_error"=dword:00000000\r
 \r