]> git.ozlabs.org Git - petitboot/blobdiff - ui/ncurses/nc-config.c
ui: add URL for static configurations to load a specified file
[petitboot] / ui / ncurses / nc-config.c
index 0141ba070ab5ab29fbbc7d8fcb8f3aca92b9e009..e7451bb5dc08fda57d54cd9a73e9bbcd32a60711 100644 (file)
@@ -15,7 +15,9 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#define _GNU_SOURCE
+#if defined(HAVE_CONFIG_H)
+#include "config.h"
+#endif
 
 #include <errno.h>
 #include <stdlib.h>
 #include <talloc/talloc.h>
 #include <types/types.h>
 #include <log/log.h>
+#include <i18n/i18n.h>
 
-#include "config.h"
 #include "nc-cui.h"
 #include "nc-config.h"
 #include "nc-widgets.h"
 
-#define N_FIELDS       18
+#define N_FIELDS       37
+
+extern struct help_text config_help_text;
 
 enum net_conf_type {
        NET_CONF_TYPE_DHCP_ALL,
@@ -43,18 +47,41 @@ struct config_screen {
        struct nc_scr           scr;
        struct cui              *cui;
        struct nc_widgetset     *widgetset;
+       WINDOW                  *pad;
+
        bool                    exit;
+       bool                    show_help;
+       bool                    show_subset;
+       bool                    need_redraw;
+       bool                    need_update;
+
        void                    (*on_exit)(struct cui *);
 
+       int                     scroll_y;
+
        int                     label_x;
        int                     field_x;
        int                     network_config_y;
 
+       enum net_conf_type      net_conf_type;
+
+       bool                    autoboot_enabled;
+       bool                    ipmi_override;
+
        struct {
-               struct nc_widget_checkbox       *autoboot_f;
-               struct nc_widget_label          *autoboot_l;
+               struct nc_widget_label          *boot_order_l;
+               struct nc_widget_subset         *boot_order_f;
+               struct nc_widget_label          *boot_empty_l;
+               struct nc_widget_button         *boot_add_b;
+               struct nc_widget_button         *boot_none_b;
+               struct nc_widget_button         *boot_any_b;
                struct nc_widget_textbox        *timeout_f;
                struct nc_widget_label          *timeout_l;
+               struct nc_widget_label          *timeout_help_l;
+
+               struct nc_widget_label          *ipmi_type_l;
+               struct nc_widget_label          *ipmi_clear_l;
+               struct nc_widget_checkbox       *ipmi_clear_cb;
 
                struct nc_widget_label          *network_l;
                struct nc_widget_select         *network_f;
@@ -65,12 +92,24 @@ struct config_screen {
                struct nc_widget_textbox        *ip_addr_f;
                struct nc_widget_label          *ip_mask_l;
                struct nc_widget_textbox        *ip_mask_f;
+               struct nc_widget_label          *ip_addr_mask_help_l;
                struct nc_widget_label          *gateway_l;
                struct nc_widget_textbox        *gateway_f;
+               struct nc_widget_label          *gateway_help_l;
+               struct nc_widget_label          *url_l;
+               struct nc_widget_textbox        *url_f;
+               struct nc_widget_label          *url_help_l;
                struct nc_widget_label          *dns_l;
                struct nc_widget_textbox        *dns_f;
+               struct nc_widget_label          *dns_dhcp_help_l;
+               struct nc_widget_label          *dns_help_l;
+
+               struct nc_widget_label          *allow_write_l;
+               struct nc_widget_select         *allow_write_f;
 
+               struct nc_widget_label          *safe_mode;
                struct nc_widget_button         *ok_b;
+               struct nc_widget_button         *help_b;
                struct nc_widget_button         *cancel_b;
        } widgets;
 };
@@ -86,16 +125,47 @@ static struct config_screen *config_screen_from_scr(struct nc_scr *scr)
        return config_screen;
 }
 
+static void pad_refresh(struct config_screen *screen)
+{
+       int y, x, rows, cols;
+
+       getmaxyx(screen->scr.sub_ncw, rows, cols);
+       getbegyx(screen->scr.sub_ncw, y, x);
+
+       prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
+}
+
 static void config_screen_process_key(struct nc_scr *scr, int key)
 {
        struct config_screen *screen = config_screen_from_scr(scr);
        bool handled;
 
        handled = widgetset_process_key(screen->widgetset, key);
-       if (screen->exit)
+
+       if (!handled) {
+               switch (key) {
+               case 'x':
+               case 27: /* esc */
+                       screen->exit = true;
+                       break;
+               case 'h':
+                       screen->show_help = true;
+                       break;
+               }
+       }
+
+       if (screen->exit) {
                screen->on_exit(screen->cui);
-       else if (handled)
-               wrefresh(screen->scr.main_ncw);
+
+       } else if (screen->show_help) {
+               screen->show_help = false;
+               screen->need_redraw = true;
+               cui_show_help(screen->cui, _("System Configuration"),
+                               &config_help_text);
+
+       } else if (handled && !screen->show_subset) {
+               pad_refresh(screen);
+       }
 }
 
 static void config_screen_resize(struct nc_scr *scr)
@@ -104,15 +174,6 @@ static void config_screen_resize(struct nc_scr *scr)
        (void)screen;
 }
 
-static int config_screen_post(struct nc_scr *scr)
-{
-       struct config_screen *screen = config_screen_from_scr(scr);
-       widgetset_post(screen->widgetset);
-       nc_scr_frame_draw(scr);
-       wrefresh(scr->main_ncw);
-       return 0;
-}
-
 static int config_screen_unpost(struct nc_scr *scr)
 {
        struct config_screen *screen = config_screen_from_scr(scr);
@@ -128,17 +189,50 @@ struct nc_scr *config_screen_scr(struct config_screen *screen)
 static int screen_process_form(struct config_screen *screen)
 {
        const struct system_info *sysinfo = screen->cui->sysinfo;
-       struct config *config = talloc_zero(screen, struct config);
        enum net_conf_type net_conf_type;
        struct interface_config *iface;
        char *str, *end;
-       int rc;
-
-       config_set_defaults(config);
-
-       config->autoboot_enabled =
-               widget_checkbox_get_value(screen->widgets.autoboot_f);
-
+       struct config *config;
+       int i, n_boot_opts, rc, idx;
+       unsigned int *order;
+       bool allow_write;
+       char mac[20];
+
+       config = config_copy(screen, screen->cui->config);
+
+       talloc_free(config->autoboot_opts);
+       config->n_autoboot_opts = 0;
+
+       n_boot_opts = widget_subset_get_order(config, &order,
+                                             screen->widgets.boot_order_f);
+
+       config->autoboot_enabled = n_boot_opts > 0;
+
+       config->n_autoboot_opts = n_boot_opts;
+       config->autoboot_opts = talloc_array(config, struct autoboot_option,
+                                            n_boot_opts);
+
+       for (i = 0; i < n_boot_opts; i++) {
+               if (order[i] < sysinfo->n_blockdevs) {
+                       /* disk uuid */
+                       config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
+                       config->autoboot_opts[i].uuid = talloc_strdup(config,
+                                                       sysinfo->blockdevs[order[i]]->uuid);
+               } else if(order[i] < (sysinfo->n_blockdevs + sysinfo->n_interfaces)) {
+                       /* net uuid */
+                       order[i] -= sysinfo->n_blockdevs;
+                       config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
+                       mac_str(sysinfo->interfaces[order[i]]->hwaddr,
+                               sysinfo->interfaces[order[i]]->hwaddr_size,
+                               mac, sizeof(mac));
+                       config->autoboot_opts[i].uuid = talloc_strdup(config, mac);
+               } else {
+                       /* device type */
+                       order[i] -= (sysinfo->n_blockdevs + sysinfo->n_interfaces);
+                       config->autoboot_opts[i].boot_type = BOOT_DEVICE_TYPE;
+                       config->autoboot_opts[i].type = order[i];
+               }
+       }
 
        str = widget_textbox_get_value(screen->widgets.timeout_f);
        if (str) {
@@ -149,6 +243,11 @@ static int screen_process_form(struct config_screen *screen)
                        config->autoboot_timeout_sec = x;
        }
 
+       if (screen->ipmi_override)
+               if (widget_checkbox_get_value(screen->widgets.ipmi_clear_cb))
+                       config->ipmi_bootdev = IPMI_BOOTDEV_INVALID;
+
+
        net_conf_type = widget_select_get_value(screen->widgets.network_f);
 
        /* if we don't have any network interfaces, prevent per-interface
@@ -160,8 +259,6 @@ 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,
@@ -180,18 +277,33 @@ static int screen_process_form(struct config_screen *screen)
        }
 
        if (net_conf_type == NET_CONF_TYPE_STATIC) {
+               char *ip, *mask, *gateway, *url;
+
+               ip = widget_textbox_get_value(screen->widgets.ip_addr_f);
+               mask = widget_textbox_get_value(screen->widgets.ip_mask_f);
+               gateway = widget_textbox_get_value(screen->widgets.gateway_f);
+               url = widget_textbox_get_value(screen->widgets.url_f);
+
+               if (!ip || !*ip || !mask || !*mask) {
+                       screen->scr.frame.status =
+                               _("No IP / mask values are set");
+                       nc_scr_frame_draw(&screen->scr);
+                       talloc_free(config);
+                       return -1;
+               }
+
                iface->method = CONFIG_METHOD_STATIC;
                iface->static_config.address = talloc_asprintf(iface, "%s/%s",
-                               widget_textbox_get_value(
-                                       screen->widgets.ip_addr_f),
-                               widget_textbox_get_value(
-                                       screen->widgets.ip_mask_f));
-               iface->static_config.gateway = talloc_strdup(iface,
-                               widget_textbox_get_value(
-                                       screen->widgets.gateway_f));
+                               ip, mask);
+               iface->static_config.gateway = talloc_strdup(iface, gateway);
+               iface->static_config.url = talloc_strdup(iface, url);
        }
 
        str = widget_textbox_get_value(screen->widgets.dns_f);
+       talloc_free(config->network.dns_servers);
+       config->network.dns_servers = NULL;
+       config->network.n_dns_servers = 0;
+
        if (str && strlen(str)) {
                char *dns, *tmp;
                int i;
@@ -214,6 +326,11 @@ static int screen_process_form(struct config_screen *screen)
                }
        }
 
+       allow_write = widget_select_get_value(screen->widgets.allow_write_f);
+       if (allow_write != config->allow_writes)
+               config->allow_writes = allow_write;
+
+       config->safe_mode = false;
        rc = cui_send_config(screen->cui, config);
        talloc_free(config);
 
@@ -228,8 +345,18 @@ static int screen_process_form(struct config_screen *screen)
 static void ok_click(void *arg)
 {
        struct config_screen *screen = arg;
-       screen_process_form(screen);
-       screen->exit = true;
+       if (screen_process_form(screen))
+               /* errors are written to the status line, so we'll need
+                * to refresh */
+               wrefresh(screen->scr.main_ncw);
+       else
+               screen->exit = true;
+}
+
+static void help_click(void *arg)
+{
+       struct config_screen *screen = arg;
+       screen->show_help = true;
 }
 
 static void cancel_click(void *arg)
@@ -248,20 +375,82 @@ static int layout_pair(struct config_screen *screen, int y,
        return max(widget_height(label_w), widget_height(field));
 }
 
-static void config_screen_layout_widgets(struct config_screen *screen,
-               enum net_conf_type net_conf)
+static void config_screen_layout_widgets(struct config_screen *screen)
 {
-       struct nc_widget *wl, *wf;
+       struct nc_widget *wl, *wf, *wh;
+       int y, x, help_x;
        bool show;
-       int y, x;
 
        y = 1;
+       /* currently, the longest label we have is the DNS-servers
+        * widget, so layout our screen based on that */
+       help_x = screen->field_x + 2 +
+               widget_width(widget_textbox_base(screen->widgets.dns_f));
+
+       wl = widget_label_base(screen->widgets.boot_order_l);
+       widget_set_visible(wl, true);
+       widget_move(wl, y, screen->label_x);
+
+       wf = widget_subset_base(screen->widgets.boot_order_f);
+       widget_move(wf, y, screen->field_x);
+       wl = widget_label_base(screen->widgets.boot_empty_l);
+       widget_move(wl, y, screen->field_x);
+
+       if (widget_subset_height(screen->widgets.boot_order_f)) {
+               widget_set_visible(wf, true);
+               widget_set_visible(wl, false);
+               y += widget_height(wf);
+       } else {
+               widget_set_visible(wl, true);
+               widget_set_visible(wf, false);
+               y += 1;
+       }
+
+       y += 1;
 
-       y += layout_pair(screen, y, screen->widgets.autoboot_l,
-                       widget_checkbox_base(screen->widgets.autoboot_f));
+       widget_move(widget_button_base(screen->widgets.boot_add_b),
+                       y++, screen->field_x);
+       widget_move(widget_button_base(screen->widgets.boot_any_b),
+                       y++, screen->field_x);
+       widget_move(widget_button_base(screen->widgets.boot_none_b),
+                       y, screen->field_x);
+
+       wf = widget_button_base(screen->widgets.boot_add_b);
+       if (widget_subset_n_inactive(screen->widgets.boot_order_f))
+               widget_set_visible(wf, true);
+       else
+               widget_set_visible(wf, false);
+
+       y += 2;
+
+       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);
+       widget_set_visible(wl, screen->autoboot_enabled);
+       widget_set_visible(wf, screen->autoboot_enabled);
+       widget_set_visible(wh, screen->autoboot_enabled);
+       if (screen->autoboot_enabled) {
+               widget_set_visible(wh, screen->autoboot_enabled);
+               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;
+       }
 
-       y += layout_pair(screen, y, screen->widgets.timeout_l,
-                       widget_textbox_base(screen->widgets.timeout_f));
+       if (screen->ipmi_override) {
+               wl = widget_label_base(screen->widgets.ipmi_type_l);
+               widget_set_visible(wl, true);
+               widget_move(wl, y, screen->label_x);
+               y += 1;
+
+               wl = widget_label_base(screen->widgets.ipmi_clear_l);
+               wf = widget_checkbox_base(screen->widgets.ipmi_clear_cb);
+               widget_set_visible(wl, true);
+               widget_set_visible(wf, true);
+               widget_move(wl, y, screen->label_x);
+               widget_move(wf, y, screen->field_x);
+               y += 1;
+       }
 
        y += 1;
 
@@ -274,8 +463,8 @@ static void config_screen_layout_widgets(struct config_screen *screen,
        wl = widget_label_base(screen->widgets.iface_l);
        wf = widget_select_base(screen->widgets.iface_f);
 
-       show = net_conf == NET_CONF_TYPE_DHCP_ONE ||
-               net_conf == NET_CONF_TYPE_STATIC;
+       show = screen->net_conf_type == NET_CONF_TYPE_DHCP_ONE ||
+               screen->net_conf_type == NET_CONF_TYPE_STATIC;
 
        widget_set_visible(wl, show);
        widget_set_visible(wf, show);
@@ -284,7 +473,7 @@ static void config_screen_layout_widgets(struct config_screen *screen,
                y += layout_pair(screen, y, screen->widgets.iface_l, wf) + 1;
 
        /* conditionally show static IP params */
-       show = net_conf == NET_CONF_TYPE_STATIC;
+       show = screen->net_conf_type == NET_CONF_TYPE_STATIC;
 
        wl = widget_label_base(screen->widgets.ip_addr_l);
        wf = widget_textbox_base(screen->widgets.ip_addr_f);
@@ -303,98 +492,584 @@ static void config_screen_layout_widgets(struct config_screen *screen,
        if (show) {
                widget_move(wl, y, x);
                widget_move(wf, y, x + 2);
-               y += 1;
+       }
+
+       /* help for IP/mask */
+       wh = widget_label_base(screen->widgets.ip_addr_mask_help_l);
+       widget_set_visible(wh, show);
+       if (show) {
+               widget_move(wh, y, help_x);
+               y++;
        }
 
        wl = widget_label_base(screen->widgets.gateway_l);
        wf = widget_textbox_base(screen->widgets.gateway_f);
+       wh = widget_label_base(screen->widgets.gateway_help_l);
        widget_set_visible(wl, show);
        widget_set_visible(wf, show);
+       widget_set_visible(wh, show);
 
-       if (show)
-               y += layout_pair(screen, y, screen->widgets.gateway_l, wf);
+       if (show) {
+               layout_pair(screen, y, screen->widgets.gateway_l, wf);
+               widget_move(wh, y, help_x);
+               y++;
+       }
+
+       wl = widget_label_base(screen->widgets.url_l);
+       wf = widget_textbox_base(screen->widgets.url_f);
+       wh = widget_label_base(screen->widgets.url_help_l);
+       widget_set_visible(wl, show);
+       widget_set_visible(wf, show);
+       widget_set_visible(wh, show);
+
+       if (show) {
+               layout_pair(screen, y, screen->widgets.url_l, wf);
+               widget_move(wh, y, help_x);
+               y++;
+       }
 
-       y += 1 + layout_pair(screen, y, screen->widgets.dns_l,
+       wh = widget_label_base(screen->widgets.dns_help_l);
+       layout_pair(screen, y, screen->widgets.dns_l,
                        widget_textbox_base(screen->widgets.dns_f));
+       widget_move(wh, y, help_x);
+       y++;
+
+       /* we show the DNS/DHCP help if we're configuring DHCP */
+       show = screen->net_conf_type != NET_CONF_TYPE_STATIC;
+       wl = widget_label_base(screen->widgets.dns_dhcp_help_l);
+       widget_set_visible(wl, show);
+       if (show) {
+               widget_move(wl, y, screen->field_x);
+               y += 1;
+       }
+
+       y += 1;
+
+       show = screen->cui->config->safe_mode;
+       if (show) {
+               widget_move(widget_label_base(screen->widgets.safe_mode),
+                       y, screen->field_x);
+               y += 1;
+       }
+
+       layout_pair(screen, y, screen->widgets.allow_write_l,
+                   widget_select_base(screen->widgets.allow_write_f));
+       y += widget_height(widget_select_base(screen->widgets.allow_write_f));
+
+       y += 1;
 
        widget_move(widget_button_base(screen->widgets.ok_b),
                        y, screen->field_x);
+       widget_move(widget_button_base(screen->widgets.help_b),
+                       y, screen->field_x + 14);
        widget_move(widget_button_base(screen->widgets.cancel_b),
-                       y, screen->field_x + 10);
+                       y, screen->field_x + 28);
 }
 
 static void config_screen_network_change(void *arg, int value)
 {
        struct config_screen *screen = arg;
+       screen->net_conf_type = value;
+       widgetset_unpost(screen->widgetset);
+       config_screen_layout_widgets(screen);
+       widgetset_post(screen->widgetset);
+}
+
+static void config_screen_boot_order_change(void *arg, int value)
+{
+       (void)value;
+       struct config_screen *screen = arg;
+       widgetset_unpost(screen->widgetset);
+       config_screen_layout_widgets(screen);
+       widgetset_post(screen->widgetset);
+}
+
+static void config_screen_add_device(void *arg)
+{
+       struct config_screen *screen = arg;
+
+       screen->show_subset = true;
+       cui_show_subset(screen->cui, _("Select a boot device to add"),
+                       screen->widgets.boot_order_f);
+}
+
+static void config_screen_autoboot_none(void *arg)
+{
+       struct config_screen *screen = arg;
+       struct nc_widget_subset *subset = screen->widgets.boot_order_f;
+
+       widget_subset_clear_active(subset);
+       screen->autoboot_enabled = false;
+
+       widgetset_unpost(screen->widgetset);
+       config_screen_layout_widgets(screen);
+       widgetset_post(screen->widgetset);
+}
+
+static void config_screen_autoboot_any(void *arg)
+{
+       struct config_screen *screen = arg;
+       const struct system_info *sysinfo = screen->cui->sysinfo;
+       struct nc_widget_subset *subset = screen->widgets.boot_order_f;
+       int idx;
+
+       widget_subset_clear_active(subset);
+
+       idx = sysinfo->n_blockdevs + sysinfo->n_interfaces + DEVICE_TYPE_ANY;
+
+       widget_subset_make_active(screen->widgets.boot_order_f, idx);
+
+       screen->autoboot_enabled = true;
+
        widgetset_unpost(screen->widgetset);
-       config_screen_layout_widgets(screen, value);
+       config_screen_layout_widgets(screen);
        widgetset_post(screen->widgetset);
 }
 
+static void config_screen_update_subset(void *arg,
+                       struct nc_widget_subset *subset, int idx)
+{
+       struct config_screen *screen = arg;
+
+       if (idx >= 0)
+               widget_subset_make_active(subset, idx);
+       if (!screen->autoboot_enabled)
+               screen->autoboot_enabled = true;
+       config_screen_layout_widgets(screen);
+}
+
+static struct interface_config *first_active_interface(
+               const struct config *config)
+{
+       unsigned int i;
+
+       for (i = 0; i < config->network.n_interfaces; i++) {
+               if (config->network.interfaces[i]->ignore)
+                       continue;
+               return config->network.interfaces[i];
+       }
+       return NULL;
+}
+
+static enum net_conf_type find_net_conf_type(const struct config *config)
+{
+       struct interface_config *ifcfg;
+
+       ifcfg = first_active_interface(config);
+
+       if (!ifcfg)
+               return NET_CONF_TYPE_DHCP_ALL;
+
+       else if (ifcfg->method == CONFIG_METHOD_DHCP)
+               return NET_CONF_TYPE_DHCP_ONE;
+
+       else if (ifcfg->method == CONFIG_METHOD_STATIC)
+               return NET_CONF_TYPE_STATIC;
+
+       assert(0);
+       return NET_CONF_TYPE_DHCP_ALL;
+}
+
+static void config_screen_setup_empty(struct config_screen *screen)
+{
+       widget_new_label(screen->widgetset, 2, screen->field_x,
+                       _("Waiting for configuration data..."));
+       screen->widgets.cancel_b = widget_new_button(screen->widgetset,
+                       4, screen->field_x, 9, _("Cancel"),
+                       cancel_click, screen);
+}
+
+static int find_autoboot_idx(const struct system_info *sysinfo,
+               struct autoboot_option *opt)
+{
+       unsigned int i;
+
+       if (opt->boot_type == BOOT_DEVICE_TYPE)
+               return sysinfo->n_blockdevs + sysinfo->n_interfaces + opt->type;
+
+       for (i = 0; i < sysinfo->n_blockdevs; i++) {
+               if (!strcmp(sysinfo->blockdevs[i]->uuid, opt->uuid))
+                       return i;
+       }
+
+       for (i = 0; i < sysinfo->n_interfaces; i++) {
+               struct interface_info *info = sysinfo->interfaces[i];
+               char mac[20];
+
+               mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
+
+               if (!strcmp(mac, opt->uuid))
+                       return sysinfo->n_blockdevs + i;
+       }
+
+       return -1;
+}
+
 static void config_screen_setup_widgets(struct config_screen *screen,
                const struct config *config,
                const struct system_info *sysinfo)
 {
        struct nc_widgetset *set = screen->widgetset;
+       struct interface_config *ifcfg;
+       char *str, *ip, *mask, *gw, *url;
+       enum net_conf_type type;
        unsigned int i;
-       char *str;
+       int add_len, clear_len, any_len, min_len = 20;
 
        build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
                        == N_FIELDS);
 
-       screen->widgets.autoboot_l = widget_new_label(set, 0, 0, "Autoboot:");
-       screen->widgets.autoboot_f = widget_new_checkbox(set, 0, 0,
-                                       config->autoboot_enabled);
+       type = screen->net_conf_type;
+       ifcfg = first_active_interface(config);
+
+       add_len = max(min_len, strncols(_("Add Device")));
+       clear_len = max(min_len, strncols(_("Clear")));
+       any_len = max(min_len, strncols(_("Clear & Boot Any")));
+
+       screen->widgets.boot_add_b = widget_new_button(set, 0, 0, add_len,
+                                       _("Add Device"),
+                                       config_screen_add_device, screen);
+
+       screen->widgets.boot_none_b = widget_new_button(set, 0, 0, clear_len,
+                                       _("Clear"),
+                                       config_screen_autoboot_none, screen);
+
+       screen->widgets.boot_any_b = widget_new_button(set, 0, 0, any_len,
+                                       _("Clear & Boot Any"),
+                                       config_screen_autoboot_any, screen);
+
+       screen->widgets.boot_order_l = widget_new_label(set, 0, 0,
+                                       _("Boot Order:"));
+       screen->widgets.boot_order_f = widget_new_subset(set, 0, 0,
+                                       COLS - screen->field_x,
+                                       config_screen_update_subset);
+       screen->widgets.boot_empty_l = widget_new_label(set, 0, 0,
+                                       _("(None)"));
+
+       widget_subset_on_change(screen->widgets.boot_order_f,
+                       config_screen_boot_order_change, screen);
+
+       for (i = 0; i < sysinfo->n_blockdevs; i++) {
+               struct blockdev_info *bd = sysinfo->blockdevs[i];
+               char *label;
+
+               label = talloc_asprintf(screen, _("disk: %s [uuid: %s]"),
+                               bd->name, bd->uuid);
+
+               widget_subset_add_option(screen->widgets.boot_order_f, label);
+       }
+
+       for (i = 0; i < sysinfo->n_interfaces; i++) {
+               struct interface_info *info = sysinfo->interfaces[i];
+               char *label, mac[20];
+
+               mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
+
+               label = talloc_asprintf(screen, _("net:  %s [mac: %s]"),
+                               info->name, mac);
+
+               widget_subset_add_option(screen->widgets.boot_order_f, label);
+       }
+
+       for (i = DEVICE_TYPE_NETWORK; i < DEVICE_TYPE_UNKNOWN; i++) {
+               char *label;
+
+               if (i == DEVICE_TYPE_ANY)
+                       label = talloc_asprintf(screen, _("Any Device"));
+               else
+                       label = talloc_asprintf(screen, _("Any %s device"),
+                                               device_type_display_name(i));
+
+               widget_subset_add_option(screen->widgets.boot_order_f, label);
+       }
+
+       screen->autoboot_enabled = config->n_autoboot_opts;
+       for (i = 0; i < config->n_autoboot_opts; i++) {
+               struct autoboot_option *opt = &config->autoboot_opts[i];
+               int idx;
+
+               idx = find_autoboot_idx(sysinfo, opt);
+
+               if (idx >= 0) {
+                       widget_subset_make_active(screen->widgets.boot_order_f,
+                                                 idx);
+               } else {
+                       if (opt->boot_type == BOOT_DEVICE_TYPE)
+                               pb_log("%s: Unknown autoboot option: %d\n",
+                                      __func__, opt->type);
+                       else
+                               pb_log("%s: Unknown autoboot UUID: %s\n",
+                                      __func__, opt->uuid);
+               }
+       }
+
 
        str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
-       screen->widgets.timeout_l = widget_new_label(set, 0, 0, "Timeout:");
+       screen->widgets.timeout_l = widget_new_label(set, 0, 0, _("Timeout:"));
        screen->widgets.timeout_f = widget_new_textbox(set, 0, 0, 5, str);
+       screen->widgets.timeout_help_l = widget_new_label(set, 0, 0,
+                                       _("seconds"));
+
+       widget_textbox_set_fixed_size(screen->widgets.timeout_f);
+       widget_textbox_set_validator_integer(screen->widgets.timeout_f, 0, 999);
+
+       if (config->ipmi_bootdev) {
+               char *label = talloc_asprintf(screen,
+                               _("%s IPMI boot option: %s"),
+                               config->ipmi_bootdev_persistent ?
+                               "Persistent" : "Temporary",
+                               ipmi_bootdev_display_name(config->ipmi_bootdev));
+               screen->widgets.ipmi_type_l = widget_new_label(set, 0, 0,
+                                                       label);
+               screen->widgets.ipmi_clear_l = widget_new_label(set, 0, 0,
+                                                       _("Clear option:"));
+               screen->widgets.ipmi_clear_cb = widget_new_checkbox(set, 0, 0,
+                                                       false);
+               screen->ipmi_override = true;
+       }
 
-       screen->widgets.network_l = widget_new_label(set, 0, 0, "Network");
-       screen->widgets.network_f = widget_new_select(set, 0, 0, 50);
+       screen->widgets.network_l = widget_new_label(set, 0, 0, _("Network:"));
+       screen->widgets.network_f = widget_new_select(set, 0, 0,
+                                               COLS - screen->field_x - 1);
 
        widget_select_add_option(screen->widgets.network_f,
                                        NET_CONF_TYPE_DHCP_ALL,
-                                       "DHCP on all active interfaces",
-                                       true);
+                                       _("DHCP on all active interfaces"),
+                                       type == NET_CONF_TYPE_DHCP_ALL);
        widget_select_add_option(screen->widgets.network_f,
                                        NET_CONF_TYPE_DHCP_ONE,
-                                       "DHCP on a specific interface",
-                                       false);
+                                       _("DHCP on a specific interface"),
+                                       type == NET_CONF_TYPE_DHCP_ONE);
        widget_select_add_option(screen->widgets.network_f,
                                        NET_CONF_TYPE_STATIC,
-                                       "Static IP configuration",
-                                       false);
+                                       _("Static IP configuration"),
+                                       type == NET_CONF_TYPE_STATIC);
 
        widget_select_on_change(screen->widgets.network_f,
                        config_screen_network_change, screen);
 
-       screen->widgets.iface_l = widget_new_label(set, 0, 0, "Device:");
-       screen->widgets.iface_f = widget_new_select(set, 0, 0, 20);
+       screen->widgets.iface_l = widget_new_label(set, 0, 0, _("Device:"));
+       screen->widgets.iface_f = widget_new_select(set, 0, 0, 50);
 
        for (i = 0; i < sysinfo->n_interfaces; i++) {
                struct interface_info *info = sysinfo->interfaces[i];
+               char str[50], mac[20];
+               bool is_default;
+
+               is_default = ifcfg && !memcmp(ifcfg->hwaddr, info->hwaddr,
+                                       sizeof(ifcfg->hwaddr));
+
+               mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
+               snprintf(str, sizeof(str), "%s [%s, %s]", info->name, mac,
+                               info->link ? _("link up") : _("link down"));
+
                widget_select_add_option(screen->widgets.iface_f,
-                                               i, info->name, false);
+                                               i, str, is_default);
        }
 
-       screen->widgets.ip_addr_l = widget_new_label(set, 0, 0, "IP/mask:");
-       screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, "");
+       url = gw = ip = mask = NULL;
+       if (ifcfg && ifcfg->method == CONFIG_METHOD_STATIC) {
+               char *sep;
+
+               str = talloc_strdup(screen, ifcfg->static_config.address);
+               sep = strchr(str, '/');
+               ip = str;
+
+               if (sep) {
+                       *sep = '\0';
+                       mask = sep + 1;
+               }
+               gw = ifcfg->static_config.gateway;
+               url = ifcfg->static_config.url;
+       }
+
+       screen->widgets.ip_addr_l = widget_new_label(set, 0, 0, _("IP/mask:"));
+       screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, ip);
        screen->widgets.ip_mask_l = widget_new_label(set, 0, 0, "/");
-       screen->widgets.ip_mask_f = widget_new_textbox(set, 0, 0, 3, "");
+       screen->widgets.ip_mask_f = widget_new_textbox(set, 0, 0, 3, mask);
+       screen->widgets.ip_addr_mask_help_l =
+               widget_new_label(set, 0, 0, _("(eg. 192.168.0.10 / 24)"));
+
+       widget_textbox_set_fixed_size(screen->widgets.ip_addr_f);
+       widget_textbox_set_fixed_size(screen->widgets.ip_mask_f);
+       widget_textbox_set_validator_ipv4(screen->widgets.ip_addr_f);
+       widget_textbox_set_validator_integer(screen->widgets.ip_mask_f, 1, 31);
+
+       screen->widgets.gateway_l = widget_new_label(set, 0, 0, _("Gateway:"));
+       screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, gw);
+       screen->widgets.gateway_help_l =
+               widget_new_label(set, 0, 0, _("(eg. 192.168.0.1)"));
+
+       widget_textbox_set_fixed_size(screen->widgets.gateway_f);
+       widget_textbox_set_validator_ipv4(screen->widgets.gateway_f);
+
+       screen->widgets.url_l = widget_new_label(set, 0, 0, _("URL:"));
+       screen->widgets.url_f = widget_new_textbox(set, 0, 0, 32, url);
+       screen->widgets.url_help_l =
+               widget_new_label(set, 0, 0, _("(eg. tftp://)"));
+
+       str = talloc_strdup(screen, "");
+       for (i = 0; i < config->network.n_dns_servers; i++) {
+               str = talloc_asprintf_append(str, "%s%s",
+                               (i == 0) ? "" : " ",
+                               config->network.dns_servers[i]);
+       }
+
+       screen->widgets.dns_l = widget_new_label(set, 0, 0,
+                                       _("DNS Server(s):"));
+       screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 32, str);
+       screen->widgets.dns_help_l =
+               widget_new_label(set, 0, 0, _("(eg. 192.168.0.2)"));
+
+       widget_textbox_set_validator_ipv4_multi(screen->widgets.dns_f);
+
+       screen->widgets.dns_dhcp_help_l = widget_new_label(set, 0, 0,
+                       _("(if not provided by DHCP server)"));
 
-       screen->widgets.gateway_l = widget_new_label(set, 0, 0, "Gateway:");
-       screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, "");
+       if (config->safe_mode)
+               screen->widgets.safe_mode = widget_new_label(set, 0, 0,
+                        _("Selecting 'OK' will exit safe mode"));
 
-       screen->widgets.dns_l = widget_new_label(set, 0, 0, "DNS Server:");
-       screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 16, "");
+       screen->widgets.allow_write_l = widget_new_label(set, 0, 0,
+                       _("Disk R/W:"));
+       screen->widgets.allow_write_f = widget_new_select(set, 0, 0,
+                                               COLS - screen->field_x - 1);
 
-       screen->widgets.ok_b = widget_new_button(set, 0, 0, 6, "OK",
+       widget_select_add_option(screen->widgets.allow_write_f, 0,
+                               _("Prevent all writes to disk"),
+                               !config->allow_writes);
+
+       widget_select_add_option(screen->widgets.allow_write_f, 1,
+                               _("Allow bootloader scripts to modify disks"),
+                               config->allow_writes);
+
+       screen->widgets.ok_b = widget_new_button(set, 0, 0, 10, _("OK"),
                        ok_click, screen);
-       screen->widgets.cancel_b = widget_new_button(set, 0, 0, 6, "Cancel",
+       screen->widgets.help_b = widget_new_button(set, 0, 0, 10, _("Help"),
+                       help_click, screen);
+       screen->widgets.cancel_b = widget_new_button(set, 0, 0, 10, _("Cancel"),
                        cancel_click, screen);
 }
 
+static void config_screen_widget_focus(struct nc_widget *widget, void *arg)
+{
+       struct config_screen *screen = arg;
+       int w_y, w_height, w_focus, s_max, adjust;
+
+       w_height = widget_height(widget);
+       w_focus = widget_focus_y(widget);
+       w_y = widget_y(widget) + w_focus;
+       s_max = getmaxy(screen->scr.sub_ncw) - 1;
+
+       if (w_y < screen->scroll_y)
+               screen->scroll_y = w_y;
+
+       else if (w_y + screen->scroll_y + 1 > s_max) {
+               /* Fit as much of the widget into the screen as possible */
+               adjust = min(s_max - 1, w_height - w_focus);
+               if (w_y + adjust >= screen->scroll_y + s_max)
+                       screen->scroll_y = max(0, 1 + w_y + adjust - s_max);
+       } else
+               return;
+
+       pad_refresh(screen);
+}
+
+static void config_screen_draw(struct config_screen *screen,
+               const struct config *config,
+               const struct system_info *sysinfo)
+{
+       bool repost = false;
+       int height;
+
+       /* The size of the pad we'll need depends on the number of interfaces.
+        *
+        * We use N_FIELDS (which is quite conservative, as some fields share
+        * a line) as a base, then:
+        * - add 6 (as the network select & boot device select fields take 3
+        *   lines each),
+        * - add n_interfaces for every field in the network select field, and
+        * - add (n_blockdevs + n_interfaces) for every field in the boot device
+        *   select field
+        */
+       height = N_FIELDS + 6;
+       if (sysinfo) {
+               height += sysinfo->n_interfaces;
+               height += (sysinfo->n_blockdevs + sysinfo->n_interfaces);
+       }
+       if (!screen->pad || getmaxy(screen->pad) < height) {
+               if (screen->pad)
+                       delwin(screen->pad);
+               screen->pad = newpad(height, COLS + 10);
+       }
+
+       if (screen->widgetset) {
+               widgetset_unpost(screen->widgetset);
+               talloc_free(screen->widgetset);
+               repost = true;
+       }
+
+       screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
+                       screen->pad);
+       widgetset_set_widget_focus(screen->widgetset,
+                       config_screen_widget_focus, screen);
+
+       if (!config || !sysinfo) {
+               config_screen_setup_empty(screen);
+       } else {
+               screen->net_conf_type = find_net_conf_type(config);
+               config_screen_setup_widgets(screen, config, sysinfo);
+               config_screen_layout_widgets(screen);
+       }
+
+       if (repost)
+               widgetset_post(screen->widgetset);
+}
+
+void config_screen_update(struct config_screen *screen,
+               const struct config *config,
+               const struct system_info *sysinfo)
+{
+       if (screen->cui->current != config_screen_scr(screen)) {
+               screen->need_update = true;
+               return;
+       }
+
+       config_screen_draw(screen, config, sysinfo);
+       pad_refresh(screen);
+}
+
+static int config_screen_post(struct nc_scr *scr)
+{
+       struct config_screen *screen = config_screen_from_scr(scr);
+       screen->show_subset = false;
+
+       if (screen->need_update) {
+               config_screen_draw(screen, screen->cui->config,
+                                  screen->cui->sysinfo);
+               screen->need_update = false;
+       } else {
+               widgetset_post(screen->widgetset);
+       }
+
+       nc_scr_frame_draw(scr);
+       if (screen->need_redraw) {
+               redrawwin(scr->main_ncw);
+               screen->need_redraw = false;
+       }
+       wrefresh(screen->scr.main_ncw);
+       pad_refresh(screen);
+       return 0;
+}
+
+static int config_screen_destroy(void *arg)
+{
+       struct config_screen *screen = arg;
+       if (screen->pad)
+               delwin(screen->pad);
+       return 0;
+}
+
 struct config_screen *config_screen_init(struct cui *cui,
                const struct config *config,
                const struct system_info *sysinfo,
@@ -403,6 +1078,7 @@ struct config_screen *config_screen_init(struct cui *cui,
        struct config_screen *screen;
 
        screen = talloc_zero(cui, struct config_screen);
+       talloc_set_destructor(screen, config_screen_destroy);
        nc_scr_init(&screen->scr, pb_config_screen_sig, 0,
                        cui, config_screen_process_key,
                        config_screen_post, config_screen_unpost,
@@ -410,23 +1086,24 @@ struct config_screen *config_screen_init(struct cui *cui,
 
        screen->cui = cui;
        screen->on_exit = on_exit;
+       screen->need_redraw = false;
+       screen->need_update = false;
        screen->label_x = 2;
-       screen->field_x = 16;
+       screen->field_x = 17;
+
+       screen->ipmi_override = false;
+       screen->show_subset = false;
 
        screen->scr.frame.ltitle = talloc_strdup(screen,
-                       "Petitboot System Configuration");
+                       _("Petitboot System Configuration"));
        screen->scr.frame.rtitle = NULL;
        screen->scr.frame.help = talloc_strdup(screen,
-                       "tab=next, shift+tab=previous");
+                       _("tab=next, shift+tab=previous, x=exit, h=help"));
        nc_scr_frame_draw(&screen->scr);
 
-       screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
-                       screen->scr.sub_ncw);
-       config_screen_setup_widgets(screen, config, sysinfo);
-       config_screen_layout_widgets(screen, NET_CONF_TYPE_DHCP_ALL);
-
-       wrefresh(screen->scr.main_ncw);
        scrollok(screen->scr.sub_ncw, true);
 
+       config_screen_draw(screen, config, sysinfo);
+
        return screen;
 }