]> git.ozlabs.org Git - petitboot/blobdiff - discover/device-handler.c
discover/device-handler: hook up autoboot_enabled config var
[petitboot] / discover / device-handler.c
index 8e71310ef5e614b38e9475478a117e7fed66f18d..a6dbf63e88a07635575e93c24473d3fd24eed9c5 100644 (file)
@@ -7,6 +7,7 @@
 #include <sys/stat.h>
 #include <sys/wait.h>
 
+#include <pb-config/pb-config.h>
 #include <talloc/talloc.h>
 #include <list/list.h>
 #include <log/log.h>
@@ -30,6 +31,12 @@ struct device_handler {
        struct discover_device  **devices;
        unsigned int            n_devices;
 
+       struct waitset          *waitset;
+       struct waiter           *timeout_waiter;
+       bool                    default_enabled;
+       unsigned int            sec_to_boot;
+
+       struct discover_boot_option *default_boot_option;
        struct list             unresolved_boot_options;
 };
 
@@ -176,6 +183,7 @@ void device_handler_destroy(struct device_handler *handler)
  * to keep struct device_handler opaque. */
 struct device_handler *device_handler_init(
                struct discover_server *server __attribute__((unused)),
+               struct waitset *waitset __attribute__((unused)),
                int dry_run __attribute__((unused)))
 {
        struct device_handler *handler;
@@ -274,7 +282,7 @@ static int umount_device(struct discover_device *dev)
 }
 
 struct device_handler *device_handler_init(struct discover_server *server,
-               int dry_run)
+               struct waitset *waitset, int dry_run)
 {
        struct device_handler *handler;
 
@@ -282,7 +290,10 @@ struct device_handler *device_handler_init(struct discover_server *server,
        handler->devices = NULL;
        handler->n_devices = 0;
        handler->server = server;
+       handler->waitset = waitset;
        handler->dry_run = dry_run;
+       handler->default_boot_option = NULL;
+       handler->default_enabled = config_get()->autoboot_enabled;
        list_init(&handler->unresolved_boot_options);
 
        /* set up our mount point base */
@@ -373,6 +384,71 @@ static void device_handler_remove(struct device_handler *handler,
        talloc_free(device);
 }
 
+static void boot_status(void *arg, struct boot_status *status)
+{
+       struct device_handler *handler = arg;
+
+       discover_server_notify_boot_status(handler->server, status);
+}
+
+static void countdown_status(struct device_handler *handler,
+               struct discover_boot_option *opt, unsigned int sec)
+{
+       struct boot_status status;
+
+       status.type = BOOT_STATUS_INFO;
+       status.progress = -1;
+       status.detail = NULL;
+       status.message = talloc_asprintf(handler,
+                       "Booting %s in %d sec", opt->option->name, sec);
+
+       discover_server_notify_boot_status(handler->server, &status);
+
+       talloc_free(status.message);
+}
+
+static int default_timeout(void *arg)
+{
+       struct device_handler *handler = arg;
+       struct discover_boot_option *opt;
+
+       if (!handler->default_boot_option)
+               return 0;
+
+       opt = handler->default_boot_option;
+
+       if (handler->sec_to_boot) {
+               countdown_status(handler, opt, handler->sec_to_boot);
+               handler->sec_to_boot--;
+               handler->timeout_waiter = waiter_register_timeout(
+                                               handler->waitset, 1000,
+                                               default_timeout, handler);
+               return 0;
+       }
+
+       pb_log("Timeout expired, booting default option %s\n", opt->option->id);
+
+       boot(handler, handler->default_boot_option, NULL,
+                       handler->dry_run, boot_status, handler);
+       return 0;
+}
+
+static void set_default(struct device_handler *handler,
+               struct discover_boot_option *opt)
+{
+       if (handler->default_boot_option)
+               return;
+
+       if (!handler->default_enabled)
+               return;
+
+       pb_log("Boot option %s set as default\n", opt->option->id);
+
+       handler->default_boot_option = opt;
+       handler->sec_to_boot = DEFAULT_BOOT_TIMEOUT_SEC;
+       default_timeout(handler);
+}
+
 static bool resource_is_resolved(struct resource *res)
 {
        return !res || res->resolved;
@@ -385,15 +461,21 @@ static bool __attribute__((used)) boot_option_is_resolved(
 {
        return resource_is_resolved(opt->boot_image) &&
                resource_is_resolved(opt->initrd) &&
+               resource_is_resolved(opt->dtb) &&
                resource_is_resolved(opt->icon);
 }
 
-static bool resource_resolve(struct resource *res, struct parser *parser,
+static bool resource_resolve(struct resource *res, const char *name,
+               struct discover_boot_option *opt,
                struct device_handler *handler)
 {
+       struct parser *parser = opt->source;
+
        if (resource_is_resolved(res))
                return true;
 
+       pb_log("Attempting to resolve resource %s->%s with parser %s\n",
+                       opt->option->id, name, parser->name);
        parser->resolve_resource(handler, res);
 
        return res->resolved;
@@ -402,18 +484,21 @@ static bool resource_resolve(struct resource *res, struct parser *parser,
 static bool boot_option_resolve(struct discover_boot_option *opt,
                struct device_handler *handler)
 {
-       return resource_resolve(opt->boot_image, opt->source, handler) &&
-               resource_resolve(opt->initrd, opt->source, handler) &&
-               resource_resolve(opt->icon, opt->source, handler);
+       return resource_resolve(opt->boot_image, "boot_image", opt, handler) &&
+               resource_resolve(opt->initrd, "initrd", opt, handler) &&
+               resource_resolve(opt->dtb, "dtb", opt, handler) &&
+               resource_resolve(opt->icon, "icon", opt, handler);
 }
 
-static void boot_option_finalise(struct discover_boot_option *opt)
+static void boot_option_finalise(struct device_handler *handler,
+               struct discover_boot_option *opt)
 {
        assert(boot_option_is_resolved(opt));
 
        /* check that the parsers haven't set any of the final data */
        assert(!opt->option->boot_image_file);
        assert(!opt->option->initrd_file);
+       assert(!opt->option->dtb_file);
        assert(!opt->option->icon_file);
        assert(!opt->option->device_id);
 
@@ -421,10 +506,15 @@ static void boot_option_finalise(struct discover_boot_option *opt)
                opt->option->boot_image_file = opt->boot_image->url->full;
        if (opt->initrd)
                opt->option->initrd_file = opt->initrd->url->full;
+       if (opt->dtb)
+               opt->option->dtb_file = opt->dtb->url->full;
        if (opt->icon)
                opt->option->icon_file = opt->icon->url->full;
 
        opt->option->device_id = opt->device->device->id;
+
+       if (opt->option->is_default)
+               set_default(handler, opt);
 }
 
 static void process_boot_option_queue(struct device_handler *handler)
@@ -434,13 +524,18 @@ static void process_boot_option_queue(struct device_handler *handler)
        list_for_each_entry_safe(&handler->unresolved_boot_options,
                        opt, tmp, list) {
 
+               pb_log("queue: attempting resolution for %s\n",
+                               opt->option->id);
+
                if (!boot_option_resolve(opt, handler))
                        continue;
 
+               pb_log("\tresolved!\n");
+
                list_remove(&opt->list);
-               list_add(&opt->device->boot_options, &opt->list);
+               list_add_tail(&opt->device->boot_options, &opt->list);
                talloc_steal(opt->device, opt);
-               boot_option_finalise(opt);
+               boot_option_finalise(handler, opt);
                discover_server_notify_boot_option_add(handler->server,
                                                        opt->option);
        }
@@ -477,6 +572,7 @@ static void context_commit(struct device_handler *handler,
 
                /* this new device might be able to resolve existing boot
                 * options */
+               pb_log("New device %s, processing queue\n", dev->device->id);
                process_boot_option_queue(handler);
        }
 
@@ -486,9 +582,12 @@ static void context_commit(struct device_handler *handler,
                list_remove(&opt->list);
 
                if (boot_option_resolve(opt, handler)) {
-                       list_add(&dev->boot_options, &opt->list);
+                       pb_log("boot option %s is resolved, "
+                                       "sending to clients\n",
+                                       opt->option->id);
+                       list_add_tail(&dev->boot_options, &opt->list);
                        talloc_steal(dev, opt);
-                       boot_option_finalise(opt);
+                       boot_option_finalise(handler, opt);
                        discover_server_notify_boot_option_add(handler->server,
                                                                opt->option);
                } else {
@@ -690,13 +789,6 @@ int device_handler_event(struct device_handler *handler,
        return handlers[event->type][event->action](handler, event);
 }
 
-static void boot_status(void *arg, struct boot_status *status)
-{
-       struct device_handler *handler = arg;
-
-       discover_server_notify_boot_status(handler->server, status);
-}
-
 static struct discover_boot_option *find_boot_option_by_id(
                struct device_handler *handler, const char *id)
 {
@@ -723,4 +815,30 @@ void device_handler_boot(struct device_handler *handler,
 
        boot(handler, opt, cmd, handler->dry_run, boot_status, handler);
 }
+
+void device_handler_cancel_default(struct device_handler *handler)
+{
+       struct boot_status status;
+
+       if (handler->timeout_waiter)
+               waiter_remove(handler->timeout_waiter);
+
+       handler->timeout_waiter = NULL;
+       handler->default_enabled = false;
+
+       /* we only send status if we had a default boot option queued */
+       if (!handler->default_boot_option)
+               return;
+
+       pb_log("Cancelling default boot option\n");
+
+       handler->default_boot_option = NULL;
+
+       status.type = BOOT_STATUS_INFO;
+       status.progress = -1;
+       status.detail = NULL;
+       status.message = "Default boot cancelled";
+
+       discover_server_notify_boot_status(handler->server, &status);
+}
 #endif