X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=discover%2Fdevice-handler.c;h=9589bb20d16c0e8ac57f390138aafca4ccd0b2be;hp=c72390b438d7222540b467619d6f2865117eb503;hb=59caf989e5e20f4a1238f23e512a586d5ba67de1;hpb=fbb2f7a20e5ac7b6d9f578fdb3538fad4310c472

diff --git a/discover/device-handler.c b/discover/device-handler.c
index c72390b..9589bb2 100644
--- a/discover/device-handler.c
+++ b/discover/device-handler.c
@@ -33,11 +33,6 @@ struct device_handler {
 	struct list contexts;
 };
 
-struct mount_map {
-	char *device_path;
-	char *mount_point;
-};
-
 /**
  * device_handler_add - Add a device to the handler device array.
  */
@@ -201,8 +196,18 @@ static int mount_device(struct discover_context *ctx)
 	argv[4] = "ro";
 	argv[5] = NULL;
 
-	if (pb_run_cmd(argv))
-		goto out_rmdir;
+	if (pb_run_cmd(argv, 1, 0)) {
+
+		/* Retry mount without ro option. */
+
+		argv[0] = MOUNT_BIN;
+		argv[1] = ctx->device_path;
+		argv[2] = ctx->mount_path;
+		argv[3] = NULL;
+
+		if (pb_run_cmd(argv, 1, 0))
+			goto out_rmdir;
+	}
 
 	setup_device_links(ctx);
 	return 0;
@@ -284,11 +289,7 @@ static int handle_add_udev_event(struct device_handler *handler,
 	ctx->id = talloc_strdup(ctx, event->device);
 
 	devname = event_get_param(ctx->event, "DEVNAME");
-	if (!devname) {
-		pb_log("no devname for %s?\n", event->device);
-		return 0;
-	}
-
+	assert(devname);
 	ctx->device_path = talloc_strdup(ctx, devname);
 
 	rc = mount_device(ctx);
@@ -381,46 +382,31 @@ static int handle_remove_user_event(struct device_handler *handler,
 	return 0;
 }
 
+typedef int (*event_handler)(struct device_handler *, struct event *);
+
+static event_handler handlers[EVENT_TYPE_MAX][EVENT_ACTION_MAX] = {
+	[EVENT_TYPE_UDEV] = {
+		[EVENT_ACTION_ADD]	= handle_add_udev_event,
+		[EVENT_ACTION_REMOVE]	= handle_remove_udev_event,
+	},
+	[EVENT_TYPE_USER] = {
+		[EVENT_ACTION_ADD]	= handle_add_user_event,
+		[EVENT_ACTION_REMOVE]	= handle_remove_user_event,
+	}
+};
+
 int device_handler_event(struct device_handler *handler,
 		struct event *event)
 {
-	int rc = 0;
-
-	switch (event->type) {
-	case EVENT_TYPE_UDEV:
-		switch (event->action) {
-		case EVENT_ACTION_ADD:
-			rc = handle_add_udev_event(handler, event);
-			break;
-		case EVENT_ACTION_REMOVE:
-			rc = handle_remove_udev_event(handler, event);
-			break;
-		default:
-			pb_log("%s unknown action: %d\n", __func__,
-				event->action);
-			break;
-		}
-		break;
-	case EVENT_TYPE_USER:
-		switch (event->action) {
-		case EVENT_ACTION_ADD:
-			rc = handle_add_user_event(handler, event);
-			break;
-		case EVENT_ACTION_REMOVE:
-			rc = handle_remove_user_event(handler, event);
-			break;
-		default:
-			pb_log("%s unknown action: %d\n", __func__,
-				event->action);
-			break;
-		}
-		break;
-	default:
-		pb_log("%s unknown type: %d\n", __func__, event->type);
-		break;
+	if (event->type >= EVENT_TYPE_MAX ||
+			event->action >= EVENT_ACTION_MAX ||
+			!handlers[event->type][event->action]) {
+		pb_log("%s unknown type/action: %d/%d\n", __func__,
+				event->type, event->action);
+		return 0;
 	}
 
-	return rc;
+	return handlers[event->type][event->action](handler, event);
 }
 
 struct device_handler *device_handler_init(struct discover_server *server)