git.ozlabs.org Git - petitboot/blob - ui/ncurses/nc-config.c

   1 /*
   2  *  Copyright (C) 2013 IBM Corporation
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU General Public License as published by
   6  *  the Free Software Foundation; version 2 of the License.
   7  *
   8  *  This program is distributed in the hope that it will be useful,
   9  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *  GNU General Public License for more details.
  12  *
  13  *  You should have received a copy of the GNU General Public License
  14  *  along with this program; if not, write to the Free Software
  15  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #if defined(HAVE_CONFIG_H)
  19 #include "config.h"
  20 #endif
  21
  22 #include <errno.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include <pb-config/pb-config.h>
  27 #include <talloc/talloc.h>
  28 #include <types/types.h>
  29 #include <log/log.h>
  30 #include <i18n/i18n.h>
  31
  32 #include "nc-cui.h"
  33 #include "nc-config.h"
  34 #include "nc-widgets.h"
  35
  36 #define N_FIELDS        48
  37
  38 extern struct help_text config_help_text;
  39
  40 enum net_conf_type {
  41         NET_CONF_TYPE_DHCP_ALL,
  42         NET_CONF_TYPE_DHCP_ONE,
  43         NET_CONF_TYPE_STATIC,
  44 };
  45
  46 struct config_screen {
  47         struct nc_scr           scr;
  48         struct cui              *cui;
  49         struct nc_widgetset     *widgetset;
  50         WINDOW                  *pad;
  51
  52         bool                    exit;
  53         bool                    show_help;
  54         bool                    show_subset;
  55         bool                    need_redraw;
  56         bool                    need_update;
  57
  58         void                    (*on_exit)(struct cui *);
  59
  60         int                     scroll_y;
  61
  62         int                     label_x;
  63         int                     field_x;
  64         int                     network_config_y;
  65
  66         enum net_conf_type      net_conf_type;
  67
  68         bool                    autoboot_enabled;
  69         bool                    ipmi_override;
  70         bool                    net_override;
  71
  72         struct {
  73                 struct nc_widget_label          *autoboot_l;
  74                 struct nc_widget_select         *autoboot_f;
  75                 struct nc_widget_label          *boot_order_l;
  76                 struct nc_widget_subset         *boot_order_f;
  77                 struct nc_widget_label          *boot_empty_l;
  78                 struct nc_widget_button         *boot_add_b;
  79                 struct nc_widget_button         *boot_none_b;
  80                 struct nc_widget_button         *boot_any_b;
  81                 struct nc_widget_textbox        *timeout_f;
  82                 struct nc_widget_label          *timeout_l;
  83                 struct nc_widget_label          *timeout_help_l;
  84
  85                 struct nc_widget_label          *ipmi_type_l;
  86                 struct nc_widget_label          *ipmi_clear_l;
  87                 struct nc_widget_button         *ipmi_clear_b;
  88
  89                 struct nc_widget_label          *network_l;
  90                 struct nc_widget_select         *network_f;
  91
  92                 struct nc_widget_label          *iface_l;
  93                 struct nc_widget_select         *iface_f;
  94                 struct nc_widget_label          *ip_addr_l;
  95                 struct nc_widget_textbox        *ip_addr_f;
  96                 struct nc_widget_label          *ip_mask_l;
  97                 struct nc_widget_textbox        *ip_mask_f;
  98                 struct nc_widget_label          *ip_addr_mask_help_l;
  99                 struct nc_widget_label          *gateway_l;
 100                 struct nc_widget_textbox        *gateway_f;
 101                 struct nc_widget_label          *gateway_help_l;
 102                 struct nc_widget_label          *url_l;
 103                 struct nc_widget_textbox        *url_f;
 104                 struct nc_widget_label          *url_help_l;
 105                 struct nc_widget_label          *dns_l;
 106                 struct nc_widget_textbox        *dns_f;
 107                 struct nc_widget_label          *dns_dhcp_help_l;
 108                 struct nc_widget_label          *dns_help_l;
 109                 struct nc_widget_label          *http_proxy_l;
 110                 struct nc_widget_textbox        *http_proxy_f;
 111                 struct nc_widget_label          *https_proxy_l;
 112                 struct nc_widget_textbox        *https_proxy_f;
 113
 114                 struct nc_widget_label          *allow_write_l;
 115                 struct nc_widget_select         *allow_write_f;
 116                 struct nc_widget_label          *boot_console_l;
 117                 struct nc_widget_select         *boot_console_f;
 118                 struct nc_widget_label          *manual_console_l;
 119                 struct nc_widget_label          *current_console_l;
 120
 121                 struct nc_widget_label          *net_override_l;
 122                 struct nc_widget_label          *safe_mode;
 123                 struct nc_widget_button         *ok_b;
 124                 struct nc_widget_button         *help_b;
 125                 struct nc_widget_button         *cancel_b;
 126         } widgets;
 127 };
 128
 129 static struct config_screen *config_screen_from_scr(struct nc_scr *scr)
 130 {
 131         struct config_screen *config_screen;
 132
 133         assert(scr->sig == pb_config_screen_sig);
 134         config_screen = (struct config_screen *)
 135                 ((char *)scr - (size_t)&((struct config_screen *)0)->scr);
 136         assert(config_screen->scr.sig == pb_config_screen_sig);
 137         return config_screen;
 138 }
 139
 140 static void pad_refresh(struct config_screen *screen)
 141 {
 142         int y, x, rows, cols;
 143
 144         getmaxyx(screen->scr.sub_ncw, rows, cols);
 145         getbegyx(screen->scr.sub_ncw, y, x);
 146
 147         prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
 148 }
 149
 150 static void config_screen_process_key(struct nc_scr *scr, int key)
 151 {
 152         struct config_screen *screen = config_screen_from_scr(scr);
 153         bool handled;
 154
 155         handled = widgetset_process_key(screen->widgetset, key);
 156
 157         if (!handled) {
 158                 switch (key) {
 159                 case 'x':
 160                 case 27: /* esc */
 161                         screen->exit = true;
 162                         break;
 163                 case 'h':
 164                         screen->show_help = true;
 165                         break;
 166                 }
 167         }
 168
 169         if (screen->exit) {
 170                 screen->on_exit(screen->cui);
 171
 172         } else if (screen->show_help) {
 173                 screen->show_help = false;
 174                 screen->need_redraw = true;
 175                 cui_show_help(screen->cui, _("System Configuration"),
 176                                 &config_help_text);
 177
 178         } else if (handled && !screen->show_subset) {
 179                 pad_refresh(screen);
 180         }
 181 }
 182
 183 static void config_screen_resize(struct nc_scr *scr)
 184 {
 185         struct config_screen *screen = config_screen_from_scr(scr);
 186         (void)screen;
 187 }
 188
 189 static int config_screen_unpost(struct nc_scr *scr)
 190 {
 191         struct config_screen *screen = config_screen_from_scr(scr);
 192         widgetset_unpost(screen->widgetset);
 193         return 0;
 194 }
 195
 196 struct nc_scr *config_screen_scr(struct config_screen *screen)
 197 {
 198         return &screen->scr;
 199 }
 200
 201 static int screen_process_form(struct config_screen *screen)
 202 {
 203         const struct system_info *sysinfo = screen->cui->sysinfo;
 204         enum net_conf_type net_conf_type;
 205         struct interface_config *iface;
 206         bool allow_write, autoboot;
 207         char *str, *end;
 208         struct config *config;
 209         int i, n_boot_opts, rc;
 210         unsigned int *order, idx;
 211         char mac[20];
 212
 213         config = config_copy(screen, screen->cui->config);
 214
 215         talloc_free(config->autoboot_opts);
 216         config->n_autoboot_opts = 0;
 217
 218         n_boot_opts = widget_subset_get_order(config, &order,
 219                                               screen->widgets.boot_order_f);
 220
 221         autoboot = widget_select_get_value(screen->widgets.autoboot_f);
 222         config->autoboot_enabled = autoboot && n_boot_opts;
 223
 224         config->n_autoboot_opts = n_boot_opts;
 225         config->autoboot_opts = talloc_array(config, struct autoboot_option,
 226                                              n_boot_opts);
 227
 228         for (i = 0; i < n_boot_opts; i++) {
 229                 if (order[i] < sysinfo->n_blockdevs) {
 230                         /* disk uuid */
 231                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
 232                         config->autoboot_opts[i].uuid = talloc_strdup(config,
 233                                                         sysinfo->blockdevs[order[i]]->uuid);
 234                 } else if(order[i] < (sysinfo->n_blockdevs + sysinfo->n_interfaces)) {
 235                         /* net uuid */
 236                         order[i] -= sysinfo->n_blockdevs;
 237                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
 238                         mac_str(sysinfo->interfaces[order[i]]->hwaddr,
 239                                 sysinfo->interfaces[order[i]]->hwaddr_size,
 240                                 mac, sizeof(mac));
 241                         config->autoboot_opts[i].uuid = talloc_strdup(config, mac);
 242                 } else {
 243                         /* device type */
 244                         order[i] -= (sysinfo->n_blockdevs + sysinfo->n_interfaces);
 245                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_TYPE;
 246                         config->autoboot_opts[i].type = order[i];
 247                 }
 248         }
 249
 250         str = widget_textbox_get_value(screen->widgets.timeout_f);
 251         if (str) {
 252                 unsigned long x;
 253                 errno = 0;
 254                 x = strtoul(str, &end, 10);
 255                 if (!errno && end != str)
 256                         config->autoboot_timeout_sec = x;
 257         }
 258
 259         net_conf_type = widget_select_get_value(screen->widgets.network_f);
 260
 261         /* if we don't have any network interfaces, prevent per-interface
 262          * configuration */
 263         if (sysinfo->n_interfaces == 0)
 264                 net_conf_type = NET_CONF_TYPE_DHCP_ALL;
 265
 266         if (net_conf_type == NET_CONF_TYPE_DHCP_ALL) {
 267                 config->network.n_interfaces = 0;
 268
 269         } else {
 270                 iface = talloc_zero(config, struct interface_config);
 271                 config->network.n_interfaces = 1;
 272                 config->network.interfaces = talloc_array(config,
 273                                 struct interface_config *, 1);
 274                 config->network.interfaces[0] = iface;
 275
 276                 /* copy hwaddr (from the sysinfo interface data) to
 277                  * the configuration */
 278                 idx = widget_select_get_value(screen->widgets.iface_f);
 279                 memcpy(iface->hwaddr, sysinfo->interfaces[idx]->hwaddr,
 280                                 sizeof(iface->hwaddr));
 281         }
 282
 283         if (net_conf_type == NET_CONF_TYPE_DHCP_ONE) {
 284                 iface->method = CONFIG_METHOD_DHCP;
 285         }
 286
 287         if (net_conf_type == NET_CONF_TYPE_STATIC) {
 288                 char *ip, *mask, *gateway, *url;
 289
 290                 ip = widget_textbox_get_value(screen->widgets.ip_addr_f);
 291                 mask = widget_textbox_get_value(screen->widgets.ip_mask_f);
 292                 gateway = widget_textbox_get_value(screen->widgets.gateway_f);
 293                 url = widget_textbox_get_value(screen->widgets.url_f);
 294
 295                 if (!ip || !*ip || !mask || !*mask) {
 296                         screen->scr.frame.status =
 297                                 _("No IP / mask values are set");
 298                         nc_scr_frame_draw(&screen->scr);
 299                         talloc_free(config);
 300                         return -1;
 301                 }
 302
 303                 iface->method = CONFIG_METHOD_STATIC;
 304                 iface->static_config.address = talloc_asprintf(iface, "%s/%s",
 305                                 ip, mask);
 306                 iface->static_config.gateway = talloc_strdup(iface, gateway);
 307                 iface->static_config.url = talloc_strdup(iface, url);
 308         }
 309
 310         str = widget_textbox_get_value(screen->widgets.dns_f);
 311         talloc_free(config->network.dns_servers);
 312         config->network.dns_servers = NULL;
 313         config->network.n_dns_servers = 0;
 314
 315         if (str && strlen(str)) {
 316                 char *dns, *tmp;
 317                 int i;
 318
 319                 for (;;) {
 320                         dns = strtok_r(str, " \t", &tmp);
 321
 322                         if (!dns)
 323                                 break;
 324
 325                         i = config->network.n_dns_servers++;
 326                         config->network.dns_servers = talloc_realloc(config,
 327                                         config->network.dns_servers,
 328                                         const char *,
 329                                         config->network.n_dns_servers);
 330                         config->network.dns_servers[i] =
 331                                 talloc_strdup(config, dns);
 332
 333                         str = NULL;
 334                 }
 335         }
 336
 337         talloc_free(config->http_proxy);
 338         talloc_free(config->https_proxy);
 339         str = widget_textbox_get_value(screen->widgets.http_proxy_f);
 340         config->http_proxy = talloc_strdup(config, str);
 341         str = widget_textbox_get_value(screen->widgets.https_proxy_f);
 342         config->https_proxy = talloc_strdup(config, str);
 343
 344         allow_write = widget_select_get_value(screen->widgets.allow_write_f);
 345         if (allow_write != config->allow_writes)
 346                 config->allow_writes = allow_write;
 347
 348         if (config->n_consoles && !config->manual_console) {
 349                 idx = widget_select_get_value(screen->widgets.boot_console_f);
 350                 if (!config->boot_console) {
 351                         config->boot_console = talloc_strdup(config,
 352                                                         config->consoles[idx]);
 353                 } else if (strncmp(config->boot_console, config->consoles[idx],
 354                                 strlen(config->boot_console)) != 0) {
 355                         talloc_free(config->boot_console);
 356                         config->boot_console = talloc_strdup(config,
 357                                                         config->consoles[idx]);
 358                 }
 359         }
 360
 361         config->safe_mode = false;
 362         rc = cui_send_config(screen->cui, config);
 363         talloc_free(config);
 364
 365         if (rc)
 366                 pb_log("cui_send_config failed!\n");
 367         else
 368                 pb_debug("config sent!\n");
 369
 370         return 0;
 371 }
 372
 373 static void ok_click(void *arg)
 374 {
 375         struct config_screen *screen = arg;
 376         if (screen_process_form(screen))
 377                 /* errors are written to the status line, so we'll need
 378                  * to refresh */
 379                 wrefresh(screen->scr.main_ncw);
 380         else
 381                 screen->exit = true;
 382 }
 383
 384 static void help_click(void *arg)
 385 {
 386         struct config_screen *screen = arg;
 387         screen->show_help = true;
 388 }
 389
 390 static void cancel_click(void *arg)
 391 {
 392         struct config_screen *screen = arg;
 393         screen->exit = true;
 394 }
 395
 396 static void ipmi_clear_click(void *arg)
 397 {
 398         struct config_screen *screen = arg;
 399         struct config *config;
 400         int rc;
 401
 402         config = config_copy(screen, screen->cui->config);
 403         config->ipmi_bootdev = IPMI_BOOTDEV_INVALID;
 404         config->safe_mode = false;
 405
 406         rc = cui_send_config(screen->cui, config);
 407         talloc_free(config);
 408
 409         if (rc)
 410                 pb_log("cui_send_config failed!\n");
 411         else
 412                 pb_debug("config sent!\n");
 413         screen->exit = true;
 414 }
 415
 416 static int layout_pair(struct config_screen *screen, int y,
 417                 struct nc_widget_label *label,
 418                 struct nc_widget *field)
 419 {
 420         struct nc_widget *label_w = widget_label_base(label);
 421         widget_move(label_w, y, screen->label_x);
 422         widget_move(field, y, screen->field_x);
 423         return max(widget_height(label_w), widget_height(field));
 424 }
 425
 426 static void config_screen_layout_widgets(struct config_screen *screen)
 427 {
 428         struct nc_widget *wl, *wf, *wh;
 429         int y, x, help_x;
 430         bool show;
 431
 432         y = 1;
 433         /* currently, the longest label we have is the DNS-servers
 434          * widget, so layout our screen based on that */
 435         help_x = screen->field_x + 2 +
 436                 widget_width(widget_textbox_base(screen->widgets.dns_f));
 437
 438         wl = widget_label_base(screen->widgets.autoboot_l);
 439         widget_set_visible(wl, true);
 440         widget_move(wl, y, screen->label_x);
 441
 442         wf = widget_select_base(screen->widgets.autoboot_f);
 443         widget_set_visible(wf, true);
 444         widget_move(wf, y, screen->field_x);
 445         y += widget_height(wf);
 446
 447         show = screen->autoboot_enabled;
 448
 449         if (show)
 450                 y += 1;
 451
 452         wl = widget_label_base(screen->widgets.boot_order_l);
 453         widget_set_visible(wl, show);
 454         widget_move(wl, y, screen->label_x);
 455
 456         wf = widget_subset_base(screen->widgets.boot_order_f);
 457         widget_move(wf, y, screen->field_x);
 458         wl = widget_label_base(screen->widgets.boot_empty_l);
 459         widget_move(wl, y, screen->field_x);
 460
 461         if (widget_subset_height(screen->widgets.boot_order_f)) {
 462                 widget_set_visible(wl, false);
 463                 widget_set_visible(wf, show);
 464                 y += show ? widget_height(wf) : 0;
 465         } else {
 466                 widget_set_visible(wl, show);
 467                 widget_set_visible(wf, false);
 468                 y += show ? 1 : 0;
 469         }
 470
 471         if (show) {
 472                 y += 1;
 473                 widget_move(widget_button_base(screen->widgets.boot_add_b),
 474                                 y++, screen->field_x);
 475                 widget_move(widget_button_base(screen->widgets.boot_any_b),
 476                                 y++, screen->field_x);
 477                 widget_move(widget_button_base(screen->widgets.boot_none_b),
 478                                 y, screen->field_x);
 479         }
 480
 481         wf = widget_button_base(screen->widgets.boot_add_b);
 482         if (widget_subset_n_inactive(screen->widgets.boot_order_f) && show)
 483                 widget_set_visible(wf, true);
 484         else
 485                 widget_set_visible(wf, false);
 486
 487         if (show)
 488                 y += 2;
 489
 490         widget_set_visible(widget_button_base(screen->widgets.boot_any_b), show);
 491         widget_set_visible(widget_button_base(screen->widgets.boot_none_b), show);
 492
 493         wf = widget_textbox_base(screen->widgets.timeout_f);
 494         wl = widget_label_base(screen->widgets.timeout_l);
 495         wh = widget_label_base(screen->widgets.timeout_help_l);
 496         widget_set_visible(wl, screen->autoboot_enabled);
 497         widget_set_visible(wf, screen->autoboot_enabled);
 498         widget_set_visible(wh, screen->autoboot_enabled);
 499         if (screen->autoboot_enabled) {
 500                 widget_set_visible(wh, screen->autoboot_enabled);
 501                 widget_move(wl, y, screen->label_x);
 502                 widget_move(wf, y, screen->field_x);
 503                 widget_move(wh, y, screen->field_x + widget_width(wf) + 1);
 504                 y += 2;
 505         } else
 506                 y += 1;
 507
 508         if (screen->ipmi_override) {
 509                 wl = widget_label_base(screen->widgets.ipmi_type_l);
 510                 widget_set_visible(wl, true);
 511                 widget_move(wl, y, screen->label_x);
 512                 y += 1;
 513
 514                 wl = widget_label_base(screen->widgets.ipmi_clear_l);
 515                 wf = widget_button_base(screen->widgets.ipmi_clear_b);
 516                 widget_set_visible(wl, true);
 517                 widget_set_visible(wf, true);
 518                 widget_move(wl, y, screen->label_x);
 519                 widget_move(wf, y, screen->field_x);
 520                 y += 1;
 521         }
 522
 523         y += 1;
 524
 525         y += layout_pair(screen, y, screen->widgets.network_l,
 526                         widget_select_base(screen->widgets.network_f));
 527
 528         y += 1;
 529
 530         /* conditionally show iface select */
 531         wl = widget_label_base(screen->widgets.iface_l);
 532         wf = widget_select_base(screen->widgets.iface_f);
 533
 534         show = screen->net_conf_type == NET_CONF_TYPE_DHCP_ONE ||
 535                 screen->net_conf_type == NET_CONF_TYPE_STATIC;
 536
 537         widget_set_visible(wl, show);
 538         widget_set_visible(wf, show);
 539
 540         if (show)
 541                 y += layout_pair(screen, y, screen->widgets.iface_l, wf) + 1;
 542
 543         /* conditionally show static IP params */
 544         show = screen->net_conf_type == NET_CONF_TYPE_STATIC;
 545
 546         wl = widget_label_base(screen->widgets.ip_addr_l);
 547         wf = widget_textbox_base(screen->widgets.ip_addr_f);
 548         widget_set_visible(wl, show);
 549         widget_set_visible(wf, show);
 550         x = screen->field_x + widget_width(wf) + 1;
 551
 552         if (show)
 553                 layout_pair(screen, y, screen->widgets.ip_addr_l, wf);
 554
 555         wl = widget_label_base(screen->widgets.ip_mask_l);
 556         wf = widget_textbox_base(screen->widgets.ip_mask_f);
 557         widget_set_visible(wl, show);
 558         widget_set_visible(wf, show);
 559
 560         if (show) {
 561                 widget_move(wl, y, x);
 562                 widget_move(wf, y, x + 2);
 563         }
 564
 565         /* help for IP/mask */
 566         wh = widget_label_base(screen->widgets.ip_addr_mask_help_l);
 567         widget_set_visible(wh, show);
 568         if (show) {
 569                 widget_move(wh, y, help_x);
 570                 y++;
 571         }
 572
 573         wl = widget_label_base(screen->widgets.gateway_l);
 574         wf = widget_textbox_base(screen->widgets.gateway_f);
 575         wh = widget_label_base(screen->widgets.gateway_help_l);
 576         widget_set_visible(wl, show);
 577         widget_set_visible(wf, show);
 578         widget_set_visible(wh, show);
 579
 580         if (show) {
 581                 layout_pair(screen, y, screen->widgets.gateway_l, wf);
 582                 widget_move(wh, y, help_x);
 583                 y++;
 584         }
 585
 586         wl = widget_label_base(screen->widgets.url_l);
 587         wf = widget_textbox_base(screen->widgets.url_f);
 588         wh = widget_label_base(screen->widgets.url_help_l);
 589         widget_set_visible(wl, show);
 590         widget_set_visible(wf, show);
 591         widget_set_visible(wh, show);
 592
 593         if (show) {
 594                 layout_pair(screen, y, screen->widgets.url_l, wf);
 595                 widget_move(wh, y, help_x);
 596                 y++;
 597         }
 598
 599         wh = widget_label_base(screen->widgets.dns_help_l);
 600         layout_pair(screen, y, screen->widgets.dns_l,
 601                         widget_textbox_base(screen->widgets.dns_f));
 602         widget_move(wh, y, help_x);
 603         y++;
 604
 605         /* we show the DNS/DHCP help if we're configuring DHCP */
 606         show = screen->net_conf_type != NET_CONF_TYPE_STATIC;
 607         wl = widget_label_base(screen->widgets.dns_dhcp_help_l);
 608         widget_set_visible(wl, show);
 609         if (show) {
 610                 widget_move(wl, y, screen->field_x);
 611                 y += 1;
 612         }
 613
 614         wf = widget_textbox_base(screen->widgets.http_proxy_f);
 615         layout_pair(screen, y, screen->widgets.http_proxy_l, wf);
 616         y++;
 617         wf = widget_textbox_base(screen->widgets.https_proxy_f);
 618         layout_pair(screen, y, screen->widgets.https_proxy_l, wf);
 619         y++;
 620
 621         y += 1;
 622
 623         layout_pair(screen, y, screen->widgets.allow_write_l,
 624                     widget_select_base(screen->widgets.allow_write_f));
 625         y += widget_height(widget_select_base(screen->widgets.allow_write_f));
 626
 627         y += 1;
 628
 629         if (screen->widgets.manual_console_l) {
 630                 layout_pair(screen, y++, screen->widgets.boot_console_l,
 631                         widget_label_base(screen->widgets.manual_console_l));
 632                 widget_move(widget_label_base(screen->widgets.current_console_l),
 633                         y, screen->field_x);
 634                 widget_set_visible(widget_select_base(
 635                         screen->widgets.boot_console_f), false);
 636                 y += 2;
 637         } else if (widget_height(widget_select_base(screen->widgets.boot_console_f))) {
 638                 layout_pair(screen, y, screen->widgets.boot_console_l,
 639                             widget_select_base(screen->widgets.boot_console_f));
 640                 y += widget_height(widget_select_base(screen->widgets.boot_console_f));
 641                 widget_move(widget_label_base(screen->widgets.current_console_l),
 642                         y, screen->field_x);
 643                 y += 2;
 644         } else {
 645                 widget_set_visible(widget_label_base(
 646                                         screen->widgets.boot_console_l), false);
 647                 widget_set_visible(widget_select_base(
 648                                         screen->widgets.boot_console_f), false);
 649                 widget_set_visible(widget_label_base(
 650                                         screen->widgets.current_console_l), false);
 651         }
 652
 653         if (screen->net_override) {
 654                 widget_move(widget_label_base(screen->widgets.net_override_l),
 655                                 y, screen->label_x);
 656                 widget_set_visible(widget_label_base(screen->widgets.net_override_l),
 657                                         true);
 658                 y += 1;
 659         }
 660
 661         if (screen->cui->config->safe_mode) {
 662                 widget_move(widget_label_base(screen->widgets.safe_mode),
 663                         y, screen->label_x);
 664                 widget_set_visible(widget_label_base(screen->widgets.safe_mode),
 665                                         true);
 666                 y += 1;
 667         }
 668
 669         widget_move(widget_button_base(screen->widgets.ok_b),
 670                         y, screen->field_x);
 671         widget_move(widget_button_base(screen->widgets.help_b),
 672                         y, screen->field_x + 14);
 673         widget_move(widget_button_base(screen->widgets.cancel_b),
 674                         y, screen->field_x + 28);
 675 }
 676
 677 static void config_screen_network_change(void *arg, int value)
 678 {
 679         struct config_screen *screen = arg;
 680         screen->net_conf_type = value;
 681         widgetset_unpost(screen->widgetset);
 682         config_screen_layout_widgets(screen);
 683         widgetset_post(screen->widgetset);
 684 }
 685
 686 static void config_screen_boot_order_change(void *arg, int value)
 687 {
 688         (void)value;
 689         struct config_screen *screen = arg;
 690         widgetset_unpost(screen->widgetset);
 691         config_screen_layout_widgets(screen);
 692         widgetset_post(screen->widgetset);
 693 }
 694
 695 static void config_screen_autoboot_change(void *arg, int value)
 696 {
 697         struct config_screen *screen = arg;
 698         screen->autoboot_enabled = !!value;
 699         widgetset_unpost(screen->widgetset);
 700         config_screen_layout_widgets(screen);
 701         widgetset_post(screen->widgetset);
 702 }
 703
 704 static void config_screen_add_device(void *arg)
 705 {
 706         struct config_screen *screen = arg;
 707
 708         screen->show_subset = true;
 709         cui_show_subset(screen->cui, _("Select a boot device to add"),
 710                         screen->widgets.boot_order_f);
 711 }
 712
 713 static void config_screen_autoboot_none(void *arg)
 714 {
 715         struct config_screen *screen = arg;
 716         struct nc_widget_subset *subset = screen->widgets.boot_order_f;
 717
 718         widget_subset_clear_active(subset);
 719
 720         widgetset_unpost(screen->widgetset);
 721         config_screen_layout_widgets(screen);
 722         widgetset_post(screen->widgetset);
 723 }
 724
 725 static void config_screen_autoboot_any(void *arg)
 726 {
 727         struct config_screen *screen = arg;
 728         const struct system_info *sysinfo = screen->cui->sysinfo;
 729         struct nc_widget_subset *subset = screen->widgets.boot_order_f;
 730         int idx;
 731
 732         widget_subset_clear_active(subset);
 733
 734         idx = sysinfo->n_blockdevs + sysinfo->n_interfaces + DEVICE_TYPE_ANY;
 735
 736         widget_subset_make_active(screen->widgets.boot_order_f, idx);
 737
 738         screen->autoboot_enabled = true;
 739
 740         widgetset_unpost(screen->widgetset);
 741         config_screen_layout_widgets(screen);
 742         widgetset_post(screen->widgetset);
 743 }
 744
 745 static void config_screen_update_subset(void *arg,
 746                         struct nc_widget_subset *subset, int idx)
 747 {
 748         struct config_screen *screen = arg;
 749
 750         if (idx >= 0)
 751                 widget_subset_make_active(subset, idx);
 752         if (!screen->autoboot_enabled)
 753                 screen->autoboot_enabled = true;
 754         config_screen_layout_widgets(screen);
 755 }
 756
 757 static struct interface_config *first_active_interface(
 758                 const struct config *config)
 759 {
 760         unsigned int i;
 761
 762         for (i = 0; i < config->network.n_interfaces; i++) {
 763                 if (config->network.interfaces[i]->ignore)
 764                         continue;
 765                 return config->network.interfaces[i];
 766         }
 767         return NULL;
 768 }
 769
 770 static enum net_conf_type find_net_conf_type(const struct config *config)
 771 {
 772         struct interface_config *ifcfg;
 773
 774         ifcfg = first_active_interface(config);
 775
 776         if (!ifcfg)
 777                 return NET_CONF_TYPE_DHCP_ALL;
 778
 779         else if (ifcfg->method == CONFIG_METHOD_DHCP)
 780                 return NET_CONF_TYPE_DHCP_ONE;
 781
 782         else if (ifcfg->method == CONFIG_METHOD_STATIC)
 783                 return NET_CONF_TYPE_STATIC;
 784
 785         assert(0);
 786         return NET_CONF_TYPE_DHCP_ALL;
 787 }
 788
 789 static void config_screen_setup_empty(struct config_screen *screen)
 790 {
 791         widget_new_label(screen->widgetset, 2, screen->field_x,
 792                         _("Waiting for configuration data..."));
 793         screen->widgets.cancel_b = widget_new_button(screen->widgetset,
 794                         4, screen->field_x, 9, _("Cancel"),
 795                         cancel_click, screen);
 796 }
 797
 798 static int find_autoboot_idx(const struct system_info *sysinfo,
 799                 struct autoboot_option *opt)
 800 {
 801         unsigned int i;
 802
 803         if (opt->boot_type == BOOT_DEVICE_TYPE)
 804                 return sysinfo->n_blockdevs + sysinfo->n_interfaces + opt->type;
 805
 806         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 807                 if (!strcmp(sysinfo->blockdevs[i]->uuid, opt->uuid))
 808                         return i;
 809         }
 810
 811         for (i = 0; i < sysinfo->n_interfaces; i++) {
 812                 struct interface_info *info = sysinfo->interfaces[i];
 813                 char mac[20];
 814
 815                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 816
 817                 if (!strcmp(mac, opt->uuid))
 818                         return sysinfo->n_blockdevs + i;
 819         }
 820
 821         return -1;
 822 }
 823
 824 static void config_screen_setup_widgets(struct config_screen *screen,
 825                 const struct config *config,
 826                 const struct system_info *sysinfo)
 827 {
 828         struct nc_widgetset *set = screen->widgetset;
 829         struct interface_config *ifcfg;
 830         char *str, *ip, *mask, *gw, *url, *tty, *label;
 831         enum net_conf_type type;
 832         unsigned int i;
 833         int add_len, clear_len, any_len, min_len = 20;
 834         bool found;
 835
 836         build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
 837                         == N_FIELDS);
 838
 839         type = screen->net_conf_type;
 840         ifcfg = first_active_interface(config);
 841
 842         screen->autoboot_enabled = config->autoboot_enabled;
 843
 844         screen->widgets.autoboot_l = widget_new_label(set, 0, 0,
 845                                         _("Autoboot:"));
 846         screen->widgets.autoboot_f = widget_new_select(set, 0, 0,
 847                                         COLS - screen->field_x - 1);
 848
 849         widget_select_add_option(screen->widgets.autoboot_f, 0, _("Disabled"),
 850                                  !screen->autoboot_enabled);
 851         widget_select_add_option(screen->widgets.autoboot_f, 1, _("Enabled"),
 852                                  screen->autoboot_enabled);
 853
 854         widget_select_on_change(screen->widgets.autoboot_f,
 855                         config_screen_autoboot_change, screen);
 856
 857         add_len = max(min_len, strncols(_("Add Device")));
 858         clear_len = max(min_len, strncols(_("Clear")));
 859         any_len = max(min_len, strncols(_("Clear & Boot Any")));
 860
 861         screen->widgets.boot_add_b = widget_new_button(set, 0, 0, add_len,
 862                                         _("Add Device"),
 863                                         config_screen_add_device, screen);
 864
 865         screen->widgets.boot_none_b = widget_new_button(set, 0, 0, clear_len,
 866                                         _("Clear"),
 867                                         config_screen_autoboot_none, screen);
 868
 869         screen->widgets.boot_any_b = widget_new_button(set, 0, 0, any_len,
 870                                         _("Clear & Boot Any"),
 871                                         config_screen_autoboot_any, screen);
 872
 873         screen->widgets.boot_order_l = widget_new_label(set, 0, 0,
 874                                         _("Boot Order:"));
 875         screen->widgets.boot_order_f = widget_new_subset(set, 0, 0,
 876                                         COLS - screen->field_x,
 877                                         config_screen_update_subset);
 878         screen->widgets.boot_empty_l = widget_new_label(set, 0, 0,
 879                                         _("(None)"));
 880
 881         widget_subset_on_change(screen->widgets.boot_order_f,
 882                         config_screen_boot_order_change, screen);
 883
 884         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 885                 struct blockdev_info *bd = sysinfo->blockdevs[i];
 886
 887                 label = talloc_asprintf(screen, _("disk: %s [uuid: %s]"),
 888                                 bd->name, bd->uuid);
 889
 890                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 891         }
 892
 893         for (i = 0; i < sysinfo->n_interfaces; i++) {
 894                 struct interface_info *info = sysinfo->interfaces[i];
 895                 char mac[20];
 896
 897                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 898
 899                 label = talloc_asprintf(screen, _("net:  %s [mac: %s]"),
 900                                 info->name, mac);
 901
 902                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 903         }
 904
 905         for (i = DEVICE_TYPE_NETWORK; i < DEVICE_TYPE_UNKNOWN; i++) {
 906
 907                 if (i == DEVICE_TYPE_ANY)
 908                         label = talloc_asprintf(screen, _("Any Device"));
 909                 else
 910                         label = talloc_asprintf(screen, _("Any %s device"),
 911                                                 device_type_display_name(i));
 912
 913                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 914         }
 915
 916         for (i = 0; i < config->n_autoboot_opts; i++) {
 917                 struct autoboot_option *opt = &config->autoboot_opts[i];
 918                 int idx;
 919
 920                 idx = find_autoboot_idx(sysinfo, opt);
 921
 922                 if (idx >= 0) {
 923                         widget_subset_make_active(screen->widgets.boot_order_f,
 924                                                   idx);
 925                 } else {
 926                         if (opt->boot_type == BOOT_DEVICE_TYPE)
 927                                 pb_log("%s: Unknown autoboot option: %d\n",
 928                                        __func__, opt->type);
 929                         else
 930                                 pb_log("%s: Unknown autoboot UUID: %s\n",
 931                                        __func__, opt->uuid);
 932                 }
 933         }
 934
 935
 936         str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
 937         screen->widgets.timeout_l = widget_new_label(set, 0, 0, _("Timeout:"));
 938         screen->widgets.timeout_f = widget_new_textbox(set, 0, 0, 5, str);
 939         screen->widgets.timeout_help_l = widget_new_label(set, 0, 0,
 940                                         _("seconds"));
 941
 942         widget_textbox_set_fixed_size(screen->widgets.timeout_f);
 943         widget_textbox_set_validator_integer(screen->widgets.timeout_f, 0, 999);
 944
 945         if (config->ipmi_bootdev) {
 946                 label = talloc_asprintf(screen,
 947                                 _("%s IPMI boot option: %s"),
 948                                 config->ipmi_bootdev_persistent ?
 949                                 _("Persistent") : _("Temporary"),
 950                                 ipmi_bootdev_display_name(config->ipmi_bootdev));
 951                 screen->widgets.ipmi_type_l = widget_new_label(set, 0, 0,
 952                                                         label);
 953                 screen->widgets.ipmi_clear_l = widget_new_label(set, 0, 0,
 954                                                         _("Clear option:"));
 955                 screen->widgets.ipmi_clear_b = widget_new_button(set, 0, 0,
 956                                 strncols(_("Clear IPMI override now")) + 10,
 957                                 _("Clear IPMI override now"),
 958                                 ipmi_clear_click, screen);
 959                 screen->ipmi_override = true;
 960         }
 961
 962         screen->widgets.network_l = widget_new_label(set, 0, 0, _("Network:"));
 963         screen->widgets.network_f = widget_new_select(set, 0, 0,
 964                                                 COLS - screen->field_x - 1);
 965
 966         widget_select_add_option(screen->widgets.network_f,
 967                                         NET_CONF_TYPE_DHCP_ALL,
 968                                         _("DHCP on all active interfaces"),
 969                                         type == NET_CONF_TYPE_DHCP_ALL);
 970         widget_select_add_option(screen->widgets.network_f,
 971                                         NET_CONF_TYPE_DHCP_ONE,
 972                                         _("DHCP on a specific interface"),
 973                                         type == NET_CONF_TYPE_DHCP_ONE);
 974         widget_select_add_option(screen->widgets.network_f,
 975                                         NET_CONF_TYPE_STATIC,
 976                                         _("Static IP configuration"),
 977                                         type == NET_CONF_TYPE_STATIC);
 978
 979         widget_select_on_change(screen->widgets.network_f,
 980                         config_screen_network_change, screen);
 981
 982         screen->widgets.iface_l = widget_new_label(set, 0, 0, _("Device:"));
 983         screen->widgets.iface_f = widget_new_select(set, 0, 0, 50);
 984
 985         for (i = 0; i < sysinfo->n_interfaces; i++) {
 986                 struct interface_info *info = sysinfo->interfaces[i];
 987                 char str[50], mac[20];
 988                 bool is_default;
 989
 990                 is_default = ifcfg && !memcmp(ifcfg->hwaddr, info->hwaddr,
 991                                         sizeof(ifcfg->hwaddr));
 992
 993                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 994                 snprintf(str, sizeof(str), "%s [%s, %s]", info->name, mac,
 995                                 info->link ? _("link up") : _("link down"));
 996
 997                 widget_select_add_option(screen->widgets.iface_f,
 998                                                 i, str, is_default);
 999         }
1000
1001         url = gw = ip = mask = NULL;
1002         if (ifcfg && ifcfg->method == CONFIG_METHOD_STATIC) {
1003                 char *sep;
1004
1005                 str = talloc_strdup(screen, ifcfg->static_config.address);
1006                 sep = strchr(str, '/');
1007                 ip = str;
1008
1009                 if (sep) {
1010                         *sep = '\0';
1011                         mask = sep + 1;
1012                 }
1013                 gw = ifcfg->static_config.gateway;
1014                 url = ifcfg->static_config.url;
1015         }
1016
1017         screen->net_override = ifcfg && ifcfg->override;
1018         if (screen->net_override) {
1019                 screen->widgets.net_override_l = widget_new_label(set, 0, 0,
1020                         _("Network Override Active! 'OK' will overwrite interface config"));
1021         }
1022
1023         screen->widgets.ip_addr_l = widget_new_label(set, 0, 0, _("IP/mask:"));
1024         screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, ip);
1025         screen->widgets.ip_mask_l = widget_new_label(set, 0, 0, "/");
1026         screen->widgets.ip_mask_f = widget_new_textbox(set, 0, 0, 3, mask);
1027         screen->widgets.ip_addr_mask_help_l =
1028                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.10 / 24)"));
1029
1030         widget_textbox_set_fixed_size(screen->widgets.ip_addr_f);
1031         widget_textbox_set_fixed_size(screen->widgets.ip_mask_f);
1032         widget_textbox_set_validator_ipv4(screen->widgets.ip_addr_f);
1033         widget_textbox_set_validator_integer(screen->widgets.ip_mask_f, 1, 31);
1034
1035         screen->widgets.gateway_l = widget_new_label(set, 0, 0, _("Gateway:"));
1036         screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, gw);
1037         screen->widgets.gateway_help_l =
1038                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.1)"));
1039
1040         widget_textbox_set_fixed_size(screen->widgets.gateway_f);
1041         widget_textbox_set_validator_ipv4(screen->widgets.gateway_f);
1042
1043         screen->widgets.url_l = widget_new_label(set, 0, 0, _("URL:"));
1044         screen->widgets.url_f = widget_new_textbox(set, 0, 0, 32, url);
1045         screen->widgets.url_help_l =
1046                 widget_new_label(set, 0, 0, _("(eg. tftp://)"));
1047
1048         str = talloc_strdup(screen, "");
1049         for (i = 0; i < config->network.n_dns_servers; i++) {
1050                 str = talloc_asprintf_append(str, "%s%s",
1051                                 (i == 0) ? "" : " ",
1052                                 config->network.dns_servers[i]);
1053         }
1054
1055         screen->widgets.dns_l = widget_new_label(set, 0, 0,
1056                                         _("DNS Server(s):"));
1057         screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 32, str);
1058         screen->widgets.dns_help_l =
1059                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.2)"));
1060
1061         widget_textbox_set_validator_ipv4_multi(screen->widgets.dns_f);
1062
1063         screen->widgets.dns_dhcp_help_l = widget_new_label(set, 0, 0,
1064                         _("(if not provided by DHCP server)"));
1065
1066         screen->widgets.http_proxy_l = widget_new_label(set, 0, 0,
1067                                         _("HTTP Proxy:"));
1068         screen->widgets.http_proxy_f = widget_new_textbox(set, 0, 0, 32,
1069                                                 config->http_proxy);
1070         screen->widgets.https_proxy_l = widget_new_label(set, 0, 0,
1071                                         _("HTTPS Proxy:"));
1072         screen->widgets.https_proxy_f = widget_new_textbox(set, 0, 0, 32,
1073                                                 config->https_proxy);
1074
1075         if (config->safe_mode)
1076                 screen->widgets.safe_mode = widget_new_label(set, 0, 0,
1077                          _("Selecting 'OK' will exit safe mode"));
1078
1079         screen->widgets.allow_write_l = widget_new_label(set, 0, 0,
1080                         _("Disk R/W:"));
1081         screen->widgets.allow_write_f = widget_new_select(set, 0, 0,
1082                                                 COLS - screen->field_x - 1);
1083
1084         widget_select_add_option(screen->widgets.allow_write_f, 0,
1085                                 _("Prevent all writes to disk"),
1086                                 !config->allow_writes);
1087
1088         widget_select_add_option(screen->widgets.allow_write_f, 1,
1089                                 _("Allow bootloader scripts to modify disks"),
1090                                 config->allow_writes);
1091
1092         screen->widgets.boot_console_l = widget_new_label(set, 0, 0,
1093                         _("Boot console:"));
1094         screen->widgets.boot_console_f = widget_new_select(set, 0, 0,
1095                                                 COLS - screen->field_x - 1);
1096
1097         for (i = 0; i < config->n_consoles; i++){
1098                 found = config->boot_console &&
1099                         strncmp(config->boot_console, config->consoles[i],
1100                                 strlen(config->boot_console)) == 0;
1101                 widget_select_add_option(screen->widgets.boot_console_f, i,
1102                                         config->consoles[i], found);
1103         }
1104
1105         if (config->manual_console) {
1106                 label = talloc_asprintf(screen, _("Manually set: '%s'"),
1107                                         config->boot_console);
1108                 screen->widgets.manual_console_l = widget_new_label(set, 0, 0, label);
1109         }
1110
1111         tty = talloc_asprintf(screen, _("Current interface: %s"),
1112                                 ttyname(STDIN_FILENO));
1113         screen->widgets.current_console_l = widget_new_label(set, 0 , 0, tty);
1114
1115         screen->widgets.ok_b = widget_new_button(set, 0, 0, 10, _("OK"),
1116                         ok_click, screen);
1117         screen->widgets.help_b = widget_new_button(set, 0, 0, 10, _("Help"),
1118                         help_click, screen);
1119         screen->widgets.cancel_b = widget_new_button(set, 0, 0, 10, _("Cancel"),
1120                         cancel_click, screen);
1121 }
1122
1123 static void config_screen_widget_focus(struct nc_widget *widget, void *arg)
1124 {
1125         struct config_screen *screen = arg;
1126         int w_y, w_height, w_focus, s_max, adjust;
1127
1128         w_height = widget_height(widget);
1129         w_focus = widget_focus_y(widget);
1130         w_y = widget_y(widget) + w_focus;
1131         s_max = getmaxy(screen->scr.sub_ncw) - 1;
1132
1133         if (w_y < screen->scroll_y)
1134                 screen->scroll_y = w_y;
1135
1136         else if (w_y + screen->scroll_y + 1 > s_max) {
1137                 /* Fit as much of the widget into the screen as possible */
1138                 adjust = min(s_max - 1, w_height - w_focus);
1139                 if (w_y + adjust >= screen->scroll_y + s_max)
1140                         screen->scroll_y = max(0, 1 + w_y + adjust - s_max);
1141         } else
1142                 return;
1143
1144         pad_refresh(screen);
1145 }
1146
1147 static void config_screen_draw(struct config_screen *screen,
1148                 const struct config *config,
1149                 const struct system_info *sysinfo)
1150 {
1151         bool repost = false;
1152         int height;
1153
1154         /* The size of the pad we'll need depends on the number of interfaces.
1155          *
1156          * We use N_FIELDS (which is quite conservative, as some fields share
1157          * a line) as a base, then:
1158          * - add 6 (as the network select & boot device select fields take 3
1159          *   lines each),
1160          * - add n_interfaces for every field in the network select field, and
1161          * - add (n_blockdevs + n_interfaces) for every field in the boot device
1162          *   select field
1163          */
1164         height = N_FIELDS + 6;
1165         if (sysinfo) {
1166                 height += sysinfo->n_interfaces;
1167                 height += (sysinfo->n_blockdevs + sysinfo->n_interfaces);
1168         }
1169         if (!screen->pad || getmaxy(screen->pad) < height) {
1170                 if (screen->pad)
1171                         delwin(screen->pad);
1172                 screen->pad = newpad(height, COLS + 10);
1173         }
1174
1175         if (screen->widgetset) {
1176                 widgetset_unpost(screen->widgetset);
1177                 talloc_free(screen->widgetset);
1178                 repost = true;
1179         }
1180
1181         screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
1182                         screen->pad);
1183         widgetset_set_widget_focus(screen->widgetset,
1184                         config_screen_widget_focus, screen);
1185
1186         if (!config || !sysinfo) {
1187                 config_screen_setup_empty(screen);
1188         } else {
1189                 screen->net_conf_type = find_net_conf_type(config);
1190                 config_screen_setup_widgets(screen, config, sysinfo);
1191                 config_screen_layout_widgets(screen);
1192         }
1193
1194         if (repost)
1195                 widgetset_post(screen->widgetset);
1196 }
1197
1198 void config_screen_update(struct config_screen *screen,
1199                 const struct config *config,
1200                 const struct system_info *sysinfo)
1201 {
1202         if (screen->cui->current != config_screen_scr(screen)) {
1203                 screen->need_update = true;
1204                 return;
1205         }
1206
1207         config_screen_draw(screen, config, sysinfo);
1208         pad_refresh(screen);
1209 }
1210
1211 static int config_screen_post(struct nc_scr *scr)
1212 {
1213         struct config_screen *screen = config_screen_from_scr(scr);
1214         screen->show_subset = false;
1215
1216         if (screen->need_update) {
1217                 config_screen_draw(screen, screen->cui->config,
1218                                    screen->cui->sysinfo);
1219                 screen->need_update = false;
1220         } else {
1221                 widgetset_post(screen->widgetset);
1222         }
1223
1224         nc_scr_frame_draw(scr);
1225         if (screen->need_redraw) {
1226                 redrawwin(scr->main_ncw);
1227                 screen->need_redraw = false;
1228         }
1229         wrefresh(screen->scr.main_ncw);
1230         pad_refresh(screen);
1231         return 0;
1232 }
1233
1234 static int config_screen_destroy(void *arg)
1235 {
1236         struct config_screen *screen = arg;
1237         if (screen->pad)
1238                 delwin(screen->pad);
1239         return 0;
1240 }
1241
1242 struct config_screen *config_screen_init(struct cui *cui,
1243                 const struct config *config,
1244                 const struct system_info *sysinfo,
1245                 void (*on_exit)(struct cui *))
1246 {
1247         struct config_screen *screen;
1248
1249         screen = talloc_zero(cui, struct config_screen);
1250         talloc_set_destructor(screen, config_screen_destroy);
1251         nc_scr_init(&screen->scr, pb_config_screen_sig, 0,
1252                         cui, config_screen_process_key,
1253                         config_screen_post, config_screen_unpost,
1254                         config_screen_resize);
1255
1256         screen->cui = cui;
1257         screen->on_exit = on_exit;
1258         screen->need_redraw = false;
1259         screen->need_update = false;
1260         screen->label_x = 2;
1261         screen->field_x = 17;
1262
1263         screen->ipmi_override = false;
1264         screen->show_subset = false;
1265
1266         screen->scr.frame.ltitle = talloc_strdup(screen,
1267                         _("Petitboot System Configuration"));
1268         screen->scr.frame.rtitle = NULL;
1269         screen->scr.frame.help = talloc_strdup(screen,
1270                         _("tab=next, shift+tab=previous, x=exit, h=help"));
1271         nc_scr_frame_draw(&screen->scr);
1272
1273         scrollok(screen->scr.sub_ncw, true);
1274
1275         config_screen_draw(screen, config, sysinfo);
1276
1277         return screen;
1278 }