X-Git-Url: http://git.ozlabs.org/?p=petitboot;a=blobdiff_plain;f=ui%2Fncurses%2Fnc-cui.c;h=dfe8099b9a8fb048016c08e3d5806b37ee4973cb;hp=56e7653af112c67e8f0afc67c6fc45b4d6cb794e;hb=1dd51e986202e5e111c1042f148867bd08c2bedc;hpb=37b4861cb01bf6bd9da41aa1b311a87b0d26fc25

diff --git a/ui/ncurses/nc-cui.c b/ui/ncurses/nc-cui.c
index 56e7653..dfe8099 100644
--- a/ui/ncurses/nc-cui.c
+++ b/ui/ncurses/nc-cui.c
@@ -25,6 +25,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
+#include <sys/reboot.h>
 
 #include "log/log.h"
 #include "pb-protocol/pb-protocol.h"
@@ -45,8 +46,18 @@
 
 extern const struct help_text main_menu_help_text;
 
+static bool cui_detached = false;
+
 static struct pmenu *main_menu_init(struct cui *cui);
 
+static bool lockdown_active(void)
+{
+	bool lockdown = false;
+	if (access(LOCKDOWN_FILE, F_OK) != -1)
+		lockdown = true;
+	return lockdown;
+}
+
 static void cui_start(void)
 {
 	initscr();			/* Initialize ncurses. */
@@ -75,10 +86,15 @@ static void cui_start(void)
 	 * Petitboot to exit if they're left undefined */
 	define_key("\x1b\x5b\x35\x7e", KEY_PPAGE);
 	define_key("\x1b\x5b\x36\x7e", KEY_NPAGE);
+	define_key("\x1b\x5b\x31\x7e", KEY_HOME);
+	define_key("\x1b\x5b\x34\x7e", KEY_END);
 	define_key("\x1b\x4f\x48", KEY_HOME);
 	define_key("\x1b\x4f\x46", KEY_END);
 	define_key("OH", KEY_HOME);
 	define_key("OF", KEY_END);
+	define_key("\x1b\x5b\x41", KEY_UP);
+	define_key("\x1b\x5b\x42", KEY_DOWN);
+	define_key("\x1b\x5b\x33\x7e", KEY_DC);
 
 	while (getch() != ERR)		/* flush stdin */
 		(void)0;
@@ -86,9 +102,19 @@ static void cui_start(void)
 
 static void cui_atexit(void)
 {
+	if (cui_detached)
+		return;
+
 	clear();
 	refresh();
 	endwin();
+
+	bool lockdown = lockdown_active();
+
+	while (lockdown) {
+		sync();
+		reboot(RB_AUTOBOOT);
+	}
 }
 
 /**
@@ -420,10 +446,15 @@ static int cui_process_key(void *arg)
 			break;
 
 		if (!cui->has_input) {
-			pb_log("UI input received (key = %d), aborting "
-					"default boot\n", c);
-			discover_client_cancel_default(cui->client);
 			cui->has_input = true;
+			if (cui->client) {
+				pb_log("UI input received (key = %d), aborting "
+					"default boot\n", c);
+				discover_client_cancel_default(cui->client);
+			} else {
+				pb_log("UI input received (key = %d), aborting "
+					"once server connects\n", c);
+			}
 		}
 
 		if (process_global_keys(cui, c))
@@ -533,6 +564,7 @@ static int cui_boot_option_add(struct device *dev, struct boot_option *opt,
 	cod->bd->initrd = talloc_strdup(cod->bd, opt->initrd_file);
 	cod->bd->dtb = talloc_strdup(cod->bd, opt->dtb_file);
 	cod->bd->args = talloc_strdup(cod->bd, opt->boot_args);
+	cod->bd->args_sig_file = talloc_strdup(cod->bd, opt->args_sig_file);
 
 	/* This disconnects items array from menu. */
 	result = set_menu_items(cui->main->ncm, NULL);
@@ -556,6 +588,7 @@ static int cui_boot_option_add(struct device *dev, struct boot_option *opt,
 	pb_log("   image  '%s'\n", cod->bd->image);
 	pb_log("   initrd '%s'\n", cod->bd->initrd);
 	pb_log("   args   '%s'\n", cod->bd->args);
+	pb_log("   argsig '%s'\n", cod->bd->args_sig_file);
 
 	/* Re-attach the items array. */
 	result = set_menu_items(cui->main->ncm, cui->main->items);
@@ -698,6 +731,9 @@ static void cui_update_sysinfo(struct system_info *sysinfo, void *arg)
 	if (cui->sysinfo_screen)
 		sysinfo_screen_update(cui->sysinfo_screen, sysinfo);
 
+	if (cui->subset_screen)
+		subset_screen_update(cui->subset_screen);
+
 	/* ... and do the same with the config screen... */
 	if (cui->config_screen)
 		config_screen_update(cui->config_screen, cui->config, sysinfo);
@@ -744,6 +780,9 @@ static void cui_update_config(struct config *config, void *arg)
 	if (config->lang)
 		cui_update_language(cui, config->lang);
 
+	if (cui->subset_screen)
+		subset_screen_update(cui->subset_screen);
+
 	if (cui->config_screen)
 		config_screen_update(cui->config_screen, config, cui->sysinfo);
 
@@ -788,13 +827,15 @@ static int menu_lang_execute(struct pmenu_item *item)
 
 static int menu_reinit_execute(struct pmenu_item *item)
 {
-	cui_send_reinit(cui_from_item(item));
+	if (cui_from_item(item)->client)
+		cui_send_reinit(cui_from_item(item));
 	return 0;
 }
 
 static int menu_add_url_execute(struct pmenu_item *item)
 {
-	cui_show_add_url(cui_from_item(item));
+	if (cui_from_item(item)->client)
+		cui_show_add_url(cui_from_item(item));
 	return 0;
 }
 
@@ -806,6 +847,7 @@ static struct pmenu *main_menu_init(struct cui *cui)
 	struct pmenu_item *i;
 	struct pmenu *m;
 	int result;
+	bool lockdown = lockdown_active();
 
 	m = pmenu_init(cui, 7, cui_on_exit);
 	if (!m) {
@@ -849,7 +891,10 @@ static struct pmenu *main_menu_init(struct cui *cui)
 	i->on_execute = menu_add_url_execute;
 	pmenu_item_insert(m, i, 5);
 
-	i = pmenu_item_create(m, _("Exit to shell"));
+	if (lockdown)
+		i = pmenu_item_create(m, _("Reboot"));
+	else
+		i = pmenu_item_create(m, _("Exit to shell"));
 	i->on_execute = pmenu_exit_cb;
 	pmenu_item_insert(m, i, 6);
 
@@ -884,6 +929,72 @@ static struct discover_client_ops cui_client_ops = {
 	.update_config = cui_update_config,
 };
 
+/* cui_server_wait_on_exit - On exit spin until the server is available.
+ *
+ * If the program exits before connecting to the server autoboot won't be
+ * cancelled even though there has been keyboard activity. This function is
+ * called by a child process which will spin until the server is connected and
+ * told to cancel autoboot.
+ *
+ * Processes exiting from this function will not carry out the cui_atexit()
+ * steps.
+ */
+static void cui_server_wait_on_exit(struct cui *cui)
+{
+	cui_detached = true;
+
+	while (!cui->client) {
+		cui->client = discover_client_init(cui->waitset,
+				&cui_client_ops, cui);
+		if (!cui->client)
+			sleep(1);
+	}
+
+	talloc_steal(cui, cui->client);
+	discover_client_cancel_default(cui->client);
+}
+
+/* cui_server_wait - Connect to the discover server.
+ * @arg: Pointer to the cui instance.
+ *
+ * A timeout callback that attempts to connect to the discover server; on
+ * failure it registers itself with a one second timeout to try again.
+ * On success the cui->client struct will be set.
+ *
+ * Since this updates the status line when called it must not be called
+ * before the UI is ready.
+ */
+static int cui_server_wait(void *arg)
+{
+	struct cui *cui = cui_from_arg(arg);
+
+	if (cui->client) {
+		pb_debug("We already have a server!\n");
+		return 0;
+	}
+
+	/* We haven't yet connected to the server */
+	pb_log("Trying to connect...\n");
+	cui->client = discover_client_init(cui->waitset,
+			&cui_client_ops, cui);
+
+	if (!cui->client) {
+		waiter_register_timeout(cui->waitset, 1000, cui_server_wait,
+					cui);
+		nc_scr_status_printf(cui->current, "Info: Waiting for server");
+	} else {
+		nc_scr_status_printf(cui->current, "Info: Connected to server!");
+		talloc_steal(cui, cui->client);
+
+		if (cui->has_input) {
+			pb_log("Aborting default boot on server connect\n");
+			discover_client_cancel_default(cui->client);
+		}
+	}
+
+	return 0;
+}
+
 /**
  * cui_init - Setup the cui instance.
  * @platform_info: A value for the struct cui platform_info member.
@@ -895,7 +1006,7 @@ static struct discover_client_ops cui_client_ops = {
  */
 
 struct cui *cui_init(void* platform_info,
-	int (*js_map)(const struct js_event *e), int start_deamon)
+	int (*js_map)(const struct js_event *e), int start_daemon, int timeout)
 {
 	struct cui *cui;
 	unsigned int i;
@@ -916,7 +1027,7 @@ struct cui *cui_init(void* platform_info,
 	/* Loop here for scripts that just started the server. */
 
 retry_start:
-	for (i = start_deamon ? 2 : 10; i; i--) {
+	for (i = start_daemon ? 2 : 15; i && timeout; i--) {
 		cui->client = discover_client_init(cui->waitset,
 				&cui_client_ops, cui);
 		if (cui->client || !i)
@@ -925,10 +1036,10 @@ retry_start:
 		sleep(1);
 	}
 
-	if (!cui->client && start_deamon) {
+	if (!cui->client && start_daemon) {
 		int result;
 
-		start_deamon = 0;
+		start_daemon = 0;
 
 		result = pb_start_daemon(cui);
 
@@ -943,7 +1054,12 @@ retry_start:
 		goto fail_client_init;
 	}
 
-	if (!cui->client) {
+	if (!cui->client && !timeout) {
+		/* Have the first timeout fire immediately so we can check
+		 * for the server as soon as the UI is ready */
+		waiter_register_timeout(cui->waitset, 0,
+					cui_server_wait, cui);
+	} else if (!cui->client) {
 		pb_log("%s: discover_client_init failed.\n", __func__);
 		fprintf(stderr, _("%s: error: discover_client_init failed.\n"),
 			__func__);
@@ -992,6 +1108,8 @@ fail_alloc:
 
 int cui_run(struct cui *cui)
 {
+	pid_t pid;
+
 	assert(main);
 
 	cui->current = &cui->main->scr;
@@ -1018,5 +1136,16 @@ int cui_run(struct cui *cui)
 
 	cui_atexit();
 
+	if (!cui->client) {
+		/* Fork a child to tell the server to cancel autoboot */
+		pid = fork();
+		if (!pid) {
+			cui_server_wait_on_exit(cui);
+			exit(EXIT_SUCCESS);
+		}
+		if (pid < 0)
+			pb_log("Failed to fork child on exit: %m\n");
+	}
+
 	return cui->abort ? 0 : -1;
 }