ipconfig: Restore original IPv6 interface status when connman quits

diff --git a/src/ipconfig.c b/src/ipconfig.c
index 8ef564e..6ef39c5 100644 (file)
--- a/src/ipconfig.c
+++ b/src/ipconfig.c
@@ -77,6 +77,8 @@ struct connman_ipdevice {
 
        struct connman_ipconfig *config_ipv4;
        struct connman_ipconfig *config_ipv6;
+
+       gboolean ipv6_enabled;
 };
 
 static GHashTable *ipdevice_hash = NULL;
@@ -292,6 +294,35 @@ static const char *scope2str(unsigned char scope)
        return "";
 }
 
+static gboolean get_ipv6_state(gchar *ifname)
+{
+       int disabled;
+       gchar *path;
+       FILE *f;
+       gboolean enabled = FALSE;
+
+       if (ifname == NULL)
+               path = g_strdup("/proc/sys/net/ipv6/conf/all/disable_ipv6");
+       else
+               path = g_strdup_printf(
+                       "/proc/sys/net/ipv6/conf/%s/disable_ipv6", ifname);
+
+       if (path == NULL)
+               return enabled;
+
+       f = fopen(path, "r");
+
+       g_free(path);
+
+       if (f != NULL) {
+               if (fscanf(f, "%d", &disabled) > 0)
+                       enabled = !disabled;
+               fclose(f);
+       }
+
+       return enabled;
+}
+
 static void set_ipv6_state(gchar *ifname, gboolean enable)
 {
        gchar *path;
@@ -344,6 +375,9 @@ static void free_ipdevice(gpointer data)
        g_free(ipdevice->pac);
 
        g_free(ipdevice->address);
+
+       set_ipv6_state(ipdevice->ifname, ipdevice->ipv6_enabled);
+
        g_free(ipdevice->ifname);
        g_free(ipdevice);
 }
@@ -439,6 +473,8 @@ void __connman_ipconfig_newlink(int index, unsigned short type,
        ipdevice->ifname = connman_inet_ifname(index);
        ipdevice->type = type;
 
+       ipdevice->ipv6_enabled = get_ipv6_state(ipdevice->ifname);
+
        ipdevice->address = g_strdup(address);
 
        g_hash_table_insert(ipdevice_hash, GINT_TO_POINTER(index), ipdevice);