ui/ncurses: Expose boot_device configuration through UI

Add a configuration setting for the default boot device.

We change the autoboot option to a select, as we have three possible
behaviours for autoboot:

 ( ) Don't autoboot
 ( ) Autoboot from any disk/network device
 ( ) Only autoboot from a specific disk/network device

The latter option will show a list of possible devices to seelct for
autoboot behaviour.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

diff --git a/ui/ncurses/nc-config-help.c b/ui/ncurses/nc-config-help.c
index 90565b20118c1c85838274238ebaa9b1b9c53c8e..828fce73818df3cd756b7bc0c257470d2406d125 100644 (file)
--- a/ui/ncurses/nc-config-help.c
+++ b/ui/ncurses/nc-config-help.c
@@ -1,11 +1,25 @@
 const char *config_help_text = "\
-Autoboot: If you select this option, Petitboot will automatically choose the \
-default option shown in the main menu. Use this option if you want to quickly \
-boot your system without changing any boot option settings.\n"
+Autoboot: There are three possible options for automatic-boot hehaviour:\n"
+"\n"
+"Don't autoboot: boot options will be listed in the petitboot menu, but none \
+will be booted automatically. User interaction will be required to continue \
+past the petitboot menu. Use this option if you want the machine to wait for \
+an explicit boot selection, or want to interact with petitboot before \
+booting the system\n"
+"\n"
+"Autoboot from any disk/network device: any boot option that is marked as a \
+default (by bootloader configuration) will be booted automatically after a \
+timeout. Use this option if you want to quickly boot your system without \
+changing any boot option settings. This is the typical configuration.\n"
+"\n"
+"Autoboot from a specific disk/network device: only boot options \
+from a single device (specifed here) will be booted automatically after a \
+timeout. Use this option if you have multiple operating system images \
+installed.\n"
 "\n"
 "Timeout: Specify the length of time, in seconds, that the main menu will be \
-displayed before the first option on the main menu is started by default. \
-Timeout is applied only if the Autoboot option is selected.\n"
+displayed before the default boot option is started. This option is only \
+displayed if autoboot is enabled.\n"
 "\n"
 "Network options:\n"
 "\n"

diff --git a/ui/ncurses/nc-config.c b/ui/ncurses/nc-config.c
index 6aecb33cfb07622641e040f62f6408df5fcfedc6..8c5e9a2fc1756577cd61ad12d305de3e445f384b 100644 (file)
--- a/ui/ncurses/nc-config.c
+++ b/ui/ncurses/nc-config.c
@@ -32,10 +32,16 @@
 #include "nc-config.h"
 #include "nc-widgets.h"
 
-#define N_FIELDS       24
+#define N_FIELDS       25
 
 extern const char *config_help_text;
 
+enum autoboot_type {
+       AUTOBOOT_ANY,
+       AUTOBOOT_ONE,
+       AUTOBOOT_DISABLED,
+};
+
 enum net_conf_type {
        NET_CONF_TYPE_DHCP_ALL,
        NET_CONF_TYPE_DHCP_ONE,
@@ -59,10 +65,12 @@ struct config_screen {
        int                     network_config_y;
 
        enum net_conf_type      net_conf_type;
+       enum autoboot_type      autoboot_type;
 
        struct {
-               struct nc_widget_checkbox       *autoboot_f;
+               struct nc_widget_select         *autoboot_f;
                struct nc_widget_label          *autoboot_l;
+               struct nc_widget_select         *boot_device_f;
                struct nc_widget_textbox        *timeout_f;
                struct nc_widget_label          *timeout_l;
                struct nc_widget_label          *timeout_help_l;
@@ -180,13 +188,38 @@ static int screen_process_form(struct config_screen *screen)
        struct interface_config *iface;
        struct config *config;
        char *str, *end;
-       int rc;
+       int rc, idx;
 
        config = config_copy(screen, screen->cui->config);
 
-       config->autoboot_enabled =
-               widget_checkbox_get_value(screen->widgets.autoboot_f);
+       screen->autoboot_type =
+               widget_select_get_value(screen->widgets.autoboot_f);
+
+       config->autoboot_enabled = screen->autoboot_type != AUTOBOOT_DISABLED;
+
+       if (screen->autoboot_type == AUTOBOOT_ONE) {
+               char mac[20], *uuid = NULL;
+
+               /* if idx is -1 here, we have an unknown UUID selected.
+                * Otherwise, it's a blockdev index (idx <= n_blockdevs) or an
+                * interface index.
+                */
+               idx = widget_select_get_value(screen->widgets.boot_device_f);
+               if (idx >= (int)sysinfo->n_blockdevs) {
+                       struct interface_info *info = sysinfo->
+                               interfaces[idx - sysinfo->n_blockdevs];
+                       mac_str(info->hwaddr, info->hwaddr_size,
+                                       mac, sizeof(mac));
+                       uuid = mac;
+               } else if (idx != -1) {
+                       uuid = sysinfo->blockdevs[idx]->uuid;
+               }
 
+               if (uuid) {
+                       talloc_free(config->boot_device);
+                       config->boot_device = talloc_strdup(config, uuid);
+               }
+       }
 
        str = widget_textbox_get_value(screen->widgets.timeout_f);
        if (str) {
@@ -208,8 +241,6 @@ static int screen_process_form(struct config_screen *screen)
                config->network.n_interfaces = 0;
 
        } else {
-               int idx;
-
                iface = talloc_zero(config, struct interface_config);
                config->network.n_interfaces = 1;
                config->network.interfaces = talloc_array(config,
@@ -330,16 +361,35 @@ static void config_screen_layout_widgets(struct config_screen *screen)
                widget_width(widget_textbox_base(screen->widgets.dns_f));
 
        y += layout_pair(screen, y, screen->widgets.autoboot_l,
-                       widget_checkbox_base(screen->widgets.autoboot_f));
+                       widget_select_base(screen->widgets.autoboot_f));
 
-       wf = widget_textbox_base(screen->widgets.timeout_f);
-       widget_move(widget_label_base(screen->widgets.timeout_l),
-                       y, screen->label_x);
-       widget_move(wf, y, screen->field_x);
-       widget_move(widget_label_base(screen->widgets.timeout_help_l),
-                       y, screen->field_x + widget_width(wf) + 1);
+       wf = widget_select_base(screen->widgets.boot_device_f);
+       if (screen->autoboot_type == AUTOBOOT_ONE) {
+               widget_set_visible(wf, true);
+               widget_move(wf, y, screen->field_x + 3);
+               y += widget_height(wf);
+       } else {
+               widget_set_visible(wf, false);
+       }
 
-       y += 2;
+       y += 1;
+
+       wf = widget_textbox_base(screen->widgets.timeout_f);
+       wl = widget_label_base(screen->widgets.timeout_l);
+       wh = widget_label_base(screen->widgets.timeout_help_l);
+       if (screen->autoboot_type != AUTOBOOT_DISABLED) {
+               widget_set_visible(wl, true);
+               widget_set_visible(wf, true);
+               widget_set_visible(wh, true);
+               widget_move(wl, y, screen->label_x);
+               widget_move(wf, y, screen->field_x);
+               widget_move(wh, y, screen->field_x + widget_width(wf) + 1);
+               y += 2;
+       } else {
+               widget_set_visible(wl, false);
+               widget_set_visible(wf, false);
+               widget_set_visible(wh, false);
+       }
 
        y += layout_pair(screen, y, screen->widgets.network_l,
                        widget_select_base(screen->widgets.network_f));
@@ -436,6 +486,15 @@ static void config_screen_network_change(void *arg, int value)
        widgetset_post(screen->widgetset);
 }
 
+static void config_screen_autoboot_change(void *arg, int value)
+{
+       struct config_screen *screen = arg;
+       screen->autoboot_type = value;
+       widgetset_unpost(screen->widgetset);
+       config_screen_layout_widgets(screen);
+       widgetset_post(screen->widgetset);
+}
+
 static struct interface_config *first_active_interface(
                const struct config *config)
 {
@@ -486,6 +545,7 @@ static void config_screen_setup_widgets(struct config_screen *screen,
        char *str, *ip, *mask, *gw;
        enum net_conf_type type;
        unsigned int i;
+       bool found;
 
        build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
                        == N_FIELDS);
@@ -494,8 +554,77 @@ static void config_screen_setup_widgets(struct config_screen *screen,
        ifcfg = first_active_interface(config);
 
        screen->widgets.autoboot_l = widget_new_label(set, 0, 0, "Autoboot:");
-       screen->widgets.autoboot_f = widget_new_checkbox(set, 0, 0,
-                                       config->autoboot_enabled);
+       screen->widgets.autoboot_f = widget_new_select(set, 0, 0, 55);
+
+       widget_select_on_change(screen->widgets.autoboot_f,
+                       config_screen_autoboot_change, screen);
+
+       screen->widgets.boot_device_f = widget_new_select(set, 0, 0, 55);
+
+       widget_select_add_option(screen->widgets.autoboot_f,
+                                       AUTOBOOT_DISABLED,
+                                       "Don't autoboot",
+                                       screen->autoboot_type ==
+                                               AUTOBOOT_DISABLED);
+       widget_select_add_option(screen->widgets.autoboot_f,
+                                       AUTOBOOT_ANY,
+                                       "Autoboot from any disk/network device",
+                                       screen->autoboot_type ==
+                                               AUTOBOOT_ANY);
+       widget_select_add_option(screen->widgets.autoboot_f,
+                                       AUTOBOOT_ONE,
+                                       "Only autoboot from a specific "
+                                       "disk/network device",
+                                       screen->autoboot_type ==
+                                               AUTOBOOT_ONE);
+
+       found = false;
+
+       for (i = 0; i < sysinfo->n_blockdevs; i++) {
+               struct blockdev_info *bd = sysinfo->blockdevs[i];
+               bool selected;
+               char *label;
+
+               selected = config->boot_device &&
+                               !strcmp(config->boot_device, bd->uuid);
+               if (selected)
+                       found = true;
+
+               label = talloc_asprintf(screen, "disk: %s [uuid: %s]",
+                               bd->name, bd->uuid);
+
+               widget_select_add_option(screen->widgets.boot_device_f, i,
+                                       label, selected);
+       }
+
+       for (i = 0; i < sysinfo->n_interfaces; i++) {
+               struct interface_info *info = sysinfo->interfaces[i];
+               char *label, mac[20];
+               bool selected;
+
+               mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
+               selected = config->boot_device &&
+                               !strcmp(config->boot_device, mac);
+               if (selected)
+                       found = true;
+
+               label = talloc_asprintf(screen, "net:  %s [mac: %s]",
+                               info->name, mac);
+
+               widget_select_add_option(screen->widgets.boot_device_f,
+                                               i + sysinfo->n_blockdevs,
+                                               label, selected);
+       }
+
+       if (screen->autoboot_type == AUTOBOOT_ONE && !found) {
+               char *label;
+
+               label = talloc_asprintf(screen, "Unknown UUID: %s",
+                               config->boot_device);
+
+               widget_select_add_option(screen->widgets.boot_device_f, -1,
+                                               label, true);
+       }
 
        str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
        screen->widgets.timeout_l = widget_new_label(set, 0, 0, "Timeout:");
@@ -661,6 +790,11 @@ static void config_screen_draw(struct config_screen *screen,
                config_screen_setup_empty(screen);
        } else {
                screen->net_conf_type = find_net_conf_type(config);
+               if (!config->autoboot_enabled)
+                       screen->autoboot_type = AUTOBOOT_DISABLED;
+               else
+                       screen->autoboot_type = config->boot_device ?
+                                       AUTOBOOT_ONE : AUTOBOOT_ANY;
 
                config_screen_setup_widgets(screen, config, sysinfo);
                config_screen_layout_widgets(screen);