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 "ui/common/discover-client.h"
  33 #include "nc-cui.h"
  34 #include "nc-config.h"
  35 #include "nc-widgets.h"
  36
  37 #define N_FIELDS        49
  38
  39 extern struct help_text config_help_text;
  40
  41 enum net_conf_type {
  42         NET_CONF_TYPE_DHCP_ALL,
  43         NET_CONF_TYPE_DHCP_ONE,
  44         NET_CONF_TYPE_STATIC,
  45 };
  46
  47 struct config_screen {
  48         struct nc_scr           scr;
  49         struct cui              *cui;
  50         struct nc_widgetset     *widgetset;
  51         WINDOW                  *pad;
  52
  53         bool                    exit;
  54         bool                    show_help;
  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_button         *update_password_l;
 122
 123                 struct nc_widget_label          *net_override_l;
 124                 struct nc_widget_label          *safe_mode;
 125                 struct nc_widget_button         *ok_b;
 126                 struct nc_widget_button         *help_b;
 127                 struct nc_widget_button         *cancel_b;
 128         } widgets;
 129 };
 130
 131 static struct config_screen *config_screen_from_scr(struct nc_scr *scr)
 132 {
 133         struct config_screen *config_screen;
 134
 135         assert(scr->sig == pb_config_screen_sig);
 136         config_screen = (struct config_screen *)
 137                 ((char *)scr - (size_t)&((struct config_screen *)0)->scr);
 138         assert(config_screen->scr.sig == pb_config_screen_sig);
 139         return config_screen;
 140 }
 141
 142 static void pad_refresh(struct config_screen *screen)
 143 {
 144         int y, x, rows, cols;
 145
 146         getmaxyx(screen->scr.sub_ncw, rows, cols);
 147         getbegyx(screen->scr.sub_ncw, y, x);
 148
 149         prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
 150 }
 151
 152 static void config_screen_process_key(struct nc_scr *scr, int key)
 153 {
 154         struct config_screen *screen = config_screen_from_scr(scr);
 155         bool handled;
 156
 157         handled = widgetset_process_key(screen->widgetset, key);
 158
 159         if (!handled) {
 160                 switch (key) {
 161                 case 'x':
 162                 case 27: /* esc */
 163                         screen->exit = true;
 164                         break;
 165                 case 'h':
 166                         screen->show_help = true;
 167                         break;
 168                 }
 169         }
 170
 171         if (screen->exit) {
 172                 screen->on_exit(screen->cui);
 173
 174         } else if (screen->show_help) {
 175                 screen->show_help = false;
 176                 screen->need_redraw = true;
 177                 cui_show_help(screen->cui, _("System Configuration"),
 178                                 &config_help_text);
 179
 180         } else if (handled && (screen->cui->current == scr)) {
 181                 pad_refresh(screen);
 182         }
 183 }
 184
 185 static void config_screen_resize(struct nc_scr *scr)
 186 {
 187         struct config_screen *screen = config_screen_from_scr(scr);
 188         (void)screen;
 189 }
 190
 191 static int config_screen_unpost(struct nc_scr *scr)
 192 {
 193         struct config_screen *screen = config_screen_from_scr(scr);
 194         widgetset_unpost(screen->widgetset);
 195         return 0;
 196 }
 197
 198 struct nc_scr *config_screen_scr(struct config_screen *screen)
 199 {
 200         return &screen->scr;
 201 }
 202
 203 static int screen_process_form(struct config_screen *screen)
 204 {
 205         const struct system_info *sysinfo = screen->cui->sysinfo;
 206         enum net_conf_type net_conf_type;
 207         struct interface_config *iface;
 208         bool allow_write;
 209         char *str, *end;
 210         struct config *config;
 211         int i, n_boot_opts, rc;
 212         unsigned int *order, idx;
 213         char mac[20];
 214
 215         config = config_copy(screen, screen->cui->config);
 216
 217         talloc_free(config->autoboot_opts);
 218         config->n_autoboot_opts = 0;
 219
 220         n_boot_opts = widget_subset_get_order(config, &order,
 221                                               screen->widgets.boot_order_f);
 222
 223         config->autoboot_enabled = widget_select_get_value(
 224                                                 screen->widgets.autoboot_f);
 225
 226         config->n_autoboot_opts = n_boot_opts;
 227         config->autoboot_opts = talloc_array(config, struct autoboot_option,
 228                                              n_boot_opts);
 229
 230         for (i = 0; i < n_boot_opts; i++) {
 231                 if (order[i] < sysinfo->n_blockdevs) {
 232                         /* disk uuid */
 233                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
 234                         config->autoboot_opts[i].uuid = talloc_strdup(config,
 235                                                         sysinfo->blockdevs[order[i]]->uuid);
 236                 } else if(order[i] < (sysinfo->n_blockdevs + sysinfo->n_interfaces)) {
 237                         /* net uuid */
 238                         order[i] -= sysinfo->n_blockdevs;
 239                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
 240                         mac_str(sysinfo->interfaces[order[i]]->hwaddr,
 241                                 sysinfo->interfaces[order[i]]->hwaddr_size,
 242                                 mac, sizeof(mac));
 243                         config->autoboot_opts[i].uuid = talloc_strdup(config, mac);
 244                 } else {
 245                         /* device type */
 246                         order[i] -= (sysinfo->n_blockdevs + sysinfo->n_interfaces);
 247                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_TYPE;
 248                         config->autoboot_opts[i].type = order[i];
 249                 }
 250         }
 251
 252         str = widget_textbox_get_value(screen->widgets.timeout_f);
 253         if (str) {
 254                 unsigned long x;
 255                 errno = 0;
 256                 x = strtoul(str, &end, 10);
 257                 if (!errno && end != str)
 258                         config->autoboot_timeout_sec = x;
 259         }
 260
 261         net_conf_type = widget_select_get_value(screen->widgets.network_f);
 262
 263         /* if we don't have any network interfaces, prevent per-interface
 264          * configuration */
 265         if (sysinfo->n_interfaces == 0)
 266                 net_conf_type = NET_CONF_TYPE_DHCP_ALL;
 267
 268         if (net_conf_type == NET_CONF_TYPE_DHCP_ALL) {
 269                 config->network.n_interfaces = 0;
 270
 271         } else {
 272                 iface = talloc_zero(config, struct interface_config);
 273                 config->network.n_interfaces = 1;
 274                 config->network.interfaces = talloc_array(config,
 275                                 struct interface_config *, 1);
 276                 config->network.interfaces[0] = iface;
 277
 278                 /* copy hwaddr (from the sysinfo interface data) to
 279                  * the configuration */
 280                 idx = widget_select_get_value(screen->widgets.iface_f);
 281                 memcpy(iface->hwaddr, sysinfo->interfaces[idx]->hwaddr,
 282                                 sizeof(iface->hwaddr));
 283         }
 284
 285         if (net_conf_type == NET_CONF_TYPE_DHCP_ONE) {
 286                 iface->method = CONFIG_METHOD_DHCP;
 287         }
 288
 289         if (net_conf_type == NET_CONF_TYPE_STATIC) {
 290                 char *ip, *mask, *gateway, *url;
 291
 292                 ip = widget_textbox_get_value(screen->widgets.ip_addr_f);
 293                 mask = widget_textbox_get_value(screen->widgets.ip_mask_f);
 294                 gateway = widget_textbox_get_value(screen->widgets.gateway_f);
 295                 url = widget_textbox_get_value(screen->widgets.url_f);
 296
 297                 if (!ip || !*ip || !mask || !*mask) {
 298                         screen->scr.frame.status =
 299                                 _("No IP / mask values are set");
 300                         nc_scr_frame_draw(&screen->scr);
 301                         talloc_free(config);
 302                         return -1;
 303                 }
 304
 305                 iface->method = CONFIG_METHOD_STATIC;
 306                 iface->static_config.address = talloc_asprintf(iface, "%s/%s",
 307                                 ip, mask);
 308                 iface->static_config.gateway = talloc_strdup(iface, gateway);
 309                 iface->static_config.url = talloc_strdup(iface, url);
 310         }
 311
 312         str = widget_textbox_get_value(screen->widgets.dns_f);
 313         talloc_free(config->network.dns_servers);
 314         config->network.dns_servers = NULL;
 315         config->network.n_dns_servers = 0;
 316
 317         if (str && strlen(str)) {
 318                 char *dns, *tmp;
 319                 int i;
 320
 321                 for (;;) {
 322                         dns = strtok_r(str, " \t", &tmp);
 323
 324                         if (!dns)
 325                                 break;
 326
 327                         i = config->network.n_dns_servers++;
 328                         config->network.dns_servers = talloc_realloc(config,
 329                                         config->network.dns_servers,
 330                                         const char *,
 331                                         config->network.n_dns_servers);
 332                         config->network.dns_servers[i] =
 333                                 talloc_strdup(config, dns);
 334
 335                         str = NULL;
 336                 }
 337         }
 338
 339         talloc_free(config->http_proxy);
 340         talloc_free(config->https_proxy);
 341         str = widget_textbox_get_value(screen->widgets.http_proxy_f);
 342         config->http_proxy = talloc_strdup(config, str);
 343         str = widget_textbox_get_value(screen->widgets.https_proxy_f);
 344         config->https_proxy = talloc_strdup(config, str);
 345
 346         allow_write = widget_select_get_value(screen->widgets.allow_write_f);
 347         if (allow_write != config->allow_writes)
 348                 config->allow_writes = allow_write;
 349
 350         if (config->n_consoles && !config->manual_console) {
 351                 idx = widget_select_get_value(screen->widgets.boot_console_f);
 352                 if (!config->boot_console) {
 353                         config->boot_console = talloc_strdup(config,
 354                                                         config->consoles[idx]);
 355                 } else if (strncmp(config->boot_console, config->consoles[idx],
 356                                 strlen(config->boot_console)) != 0) {
 357                         talloc_free(config->boot_console);
 358                         config->boot_console = talloc_strdup(config,
 359                                                         config->consoles[idx]);
 360                 }
 361         }
 362
 363         config->safe_mode = false;
 364         rc = cui_send_config(screen->cui, config);
 365         talloc_free(config);
 366
 367         if (rc)
 368                 pb_log("cui_send_config failed!\n");
 369         else
 370                 pb_debug("config sent!\n");
 371
 372         return 0;
 373 }
 374
 375 static void config_screen_config_cb(struct nc_scr *scr)
 376 {
 377         struct config_screen *screen = config_screen_from_scr(scr);
 378
 379         if (!screen_process_form(screen))
 380                 screen->exit = true;
 381 }
 382
 383 #ifdef CRYPT_SUPPORT
 384 static void password_click(void *arg)
 385 {
 386         struct config_screen *screen = arg;
 387
 388         screen->need_update = true;
 389         cui_show_auth(screen->cui, screen->scr.main_ncw, true, NULL);
 390 }
 391 #endif
 392
 393 static void ok_click(void *arg)
 394 {
 395         struct config_screen *screen = arg;
 396
 397         if (discover_client_authenticated(screen->cui->client)) {
 398                 if (screen_process_form(screen))
 399                         /* errors are written to the status line, so we'll need
 400                          * to refresh */
 401                         wrefresh(screen->scr.main_ncw);
 402                 else
 403                         screen->exit = true;
 404         } else {
 405                 cui_show_auth(screen->cui, screen->scr.main_ncw, false,
 406                                 config_screen_config_cb);
 407         }
 408 }
 409
 410 static void help_click(void *arg)
 411 {
 412         struct config_screen *screen = arg;
 413         screen->show_help = true;
 414 }
 415
 416 static void cancel_click(void *arg)
 417 {
 418         struct config_screen *screen = arg;
 419         screen->exit = true;
 420 }
 421
 422 static void ipmi_clear_click(void *arg)
 423 {
 424         struct config_screen *screen = arg;
 425         struct config *config;
 426         int rc;
 427
 428         config = config_copy(screen, screen->cui->config);
 429         config->ipmi_bootdev = IPMI_BOOTDEV_INVALID;
 430         config->safe_mode = false;
 431
 432         rc = cui_send_config(screen->cui, config);
 433         talloc_free(config);
 434
 435         if (rc)
 436                 pb_log("cui_send_config failed!\n");
 437         else
 438                 pb_debug("config sent!\n");
 439         screen->exit = true;
 440 }
 441
 442 static int layout_pair(struct config_screen *screen, int y,
 443                 struct nc_widget_label *label,
 444                 struct nc_widget *field)
 445 {
 446         struct nc_widget *label_w = widget_label_base(label);
 447         widget_move(label_w, y, screen->label_x);
 448         widget_move(field, y, screen->field_x);
 449         return max(widget_height(label_w), widget_height(field));
 450 }
 451
 452 static void config_screen_layout_widgets(struct config_screen *screen)
 453 {
 454         struct nc_widget *wl, *wf, *wh;
 455         int y, x, help_x;
 456         bool show;
 457
 458         y = 1;
 459         /* currently, the longest label we have is the DNS-servers
 460          * widget, so layout our screen based on that */
 461         help_x = screen->field_x + 2 +
 462                 widget_width(widget_textbox_base(screen->widgets.dns_f));
 463
 464         wl = widget_label_base(screen->widgets.autoboot_l);
 465         widget_set_visible(wl, true);
 466         widget_move(wl, y, screen->label_x);
 467
 468         wf = widget_select_base(screen->widgets.autoboot_f);
 469         widget_set_visible(wf, true);
 470         widget_move(wf, y, screen->field_x);
 471         y += widget_height(wf);
 472
 473         show = screen->autoboot_enabled;
 474
 475         if (show)
 476                 y += 1;
 477
 478         wl = widget_label_base(screen->widgets.boot_order_l);
 479         widget_set_visible(wl, show);
 480         widget_move(wl, y, screen->label_x);
 481
 482         wf = widget_subset_base(screen->widgets.boot_order_f);
 483         widget_move(wf, y, screen->field_x);
 484         wl = widget_label_base(screen->widgets.boot_empty_l);
 485         widget_move(wl, y, screen->field_x);
 486
 487         if (widget_subset_height(screen->widgets.boot_order_f)) {
 488                 widget_set_visible(wl, false);
 489                 widget_set_visible(wf, show);
 490                 y += show ? widget_height(wf) : 0;
 491         } else {
 492                 widget_set_visible(wl, show);
 493                 widget_set_visible(wf, false);
 494                 y += show ? 1 : 0;
 495         }
 496
 497         if (show) {
 498                 y += 1;
 499                 widget_move(widget_button_base(screen->widgets.boot_add_b),
 500                                 y++, screen->field_x);
 501                 widget_move(widget_button_base(screen->widgets.boot_any_b),
 502                                 y++, screen->field_x);
 503                 widget_move(widget_button_base(screen->widgets.boot_none_b),
 504                                 y, screen->field_x);
 505         }
 506
 507         wf = widget_button_base(screen->widgets.boot_add_b);
 508         if (widget_subset_n_inactive(screen->widgets.boot_order_f) && show)
 509                 widget_set_visible(wf, true);
 510         else
 511                 widget_set_visible(wf, false);
 512
 513         if (show)
 514                 y += 2;
 515
 516         widget_set_visible(widget_button_base(screen->widgets.boot_any_b), show);
 517         widget_set_visible(widget_button_base(screen->widgets.boot_none_b), show);
 518
 519         wf = widget_textbox_base(screen->widgets.timeout_f);
 520         wl = widget_label_base(screen->widgets.timeout_l);
 521         wh = widget_label_base(screen->widgets.timeout_help_l);
 522         widget_set_visible(wl, screen->autoboot_enabled);
 523         widget_set_visible(wf, screen->autoboot_enabled);
 524         widget_set_visible(wh, screen->autoboot_enabled);
 525         if (screen->autoboot_enabled) {
 526                 widget_set_visible(wh, screen->autoboot_enabled);
 527                 widget_move(wl, y, screen->label_x);
 528                 widget_move(wf, y, screen->field_x);
 529                 widget_move(wh, y, screen->field_x + widget_width(wf) + 1);
 530                 y += 2;
 531         } else
 532                 y += 1;
 533
 534         if (screen->ipmi_override) {
 535                 wl = widget_label_base(screen->widgets.ipmi_type_l);
 536                 widget_set_visible(wl, true);
 537                 widget_move(wl, y, screen->label_x);
 538                 y += 1;
 539
 540                 wl = widget_label_base(screen->widgets.ipmi_clear_l);
 541                 wf = widget_button_base(screen->widgets.ipmi_clear_b);
 542                 widget_set_visible(wl, true);
 543                 widget_set_visible(wf, true);
 544                 widget_move(wl, y, screen->label_x);
 545                 widget_move(wf, y, screen->field_x);
 546                 y += 1;
 547         }
 548
 549         y += 1;
 550
 551         y += layout_pair(screen, y, screen->widgets.network_l,
 552                         widget_select_base(screen->widgets.network_f));
 553
 554         y += 1;
 555
 556         /* conditionally show iface select */
 557         wl = widget_label_base(screen->widgets.iface_l);
 558         wf = widget_select_base(screen->widgets.iface_f);
 559
 560         show = screen->net_conf_type == NET_CONF_TYPE_DHCP_ONE ||
 561                 screen->net_conf_type == NET_CONF_TYPE_STATIC;
 562
 563         widget_set_visible(wl, show);
 564         widget_set_visible(wf, show);
 565
 566         if (show)
 567                 y += layout_pair(screen, y, screen->widgets.iface_l, wf) + 1;
 568
 569         /* conditionally show static IP params */
 570         show = screen->net_conf_type == NET_CONF_TYPE_STATIC;
 571
 572         wl = widget_label_base(screen->widgets.ip_addr_l);
 573         wf = widget_textbox_base(screen->widgets.ip_addr_f);
 574         widget_set_visible(wl, show);
 575         widget_set_visible(wf, show);
 576         x = screen->field_x + widget_width(wf) + 1;
 577
 578         if (show)
 579                 layout_pair(screen, y, screen->widgets.ip_addr_l, wf);
 580
 581         wl = widget_label_base(screen->widgets.ip_mask_l);
 582         wf = widget_textbox_base(screen->widgets.ip_mask_f);
 583         widget_set_visible(wl, show);
 584         widget_set_visible(wf, show);
 585
 586         if (show) {
 587                 widget_move(wl, y, x);
 588                 widget_move(wf, y, x + 2);
 589         }
 590
 591         /* help for IP/mask */
 592         wh = widget_label_base(screen->widgets.ip_addr_mask_help_l);
 593         widget_set_visible(wh, show);
 594         if (show) {
 595                 widget_move(wh, y, help_x);
 596                 y++;
 597         }
 598
 599         wl = widget_label_base(screen->widgets.gateway_l);
 600         wf = widget_textbox_base(screen->widgets.gateway_f);
 601         wh = widget_label_base(screen->widgets.gateway_help_l);
 602         widget_set_visible(wl, show);
 603         widget_set_visible(wf, show);
 604         widget_set_visible(wh, show);
 605
 606         if (show) {
 607                 layout_pair(screen, y, screen->widgets.gateway_l, wf);
 608                 widget_move(wh, y, help_x);
 609                 y++;
 610         }
 611
 612         wl = widget_label_base(screen->widgets.url_l);
 613         wf = widget_textbox_base(screen->widgets.url_f);
 614         wh = widget_label_base(screen->widgets.url_help_l);
 615         widget_set_visible(wl, show);
 616         widget_set_visible(wf, show);
 617         widget_set_visible(wh, show);
 618
 619         if (show) {
 620                 layout_pair(screen, y, screen->widgets.url_l, wf);
 621                 widget_move(wh, y, help_x);
 622                 y++;
 623         }
 624
 625         wh = widget_label_base(screen->widgets.dns_help_l);
 626         layout_pair(screen, y, screen->widgets.dns_l,
 627                         widget_textbox_base(screen->widgets.dns_f));
 628         widget_move(wh, y, help_x);
 629         y++;
 630
 631         /* we show the DNS/DHCP help if we're configuring DHCP */
 632         show = screen->net_conf_type != NET_CONF_TYPE_STATIC;
 633         wl = widget_label_base(screen->widgets.dns_dhcp_help_l);
 634         widget_set_visible(wl, show);
 635         if (show) {
 636                 widget_move(wl, y, screen->field_x);
 637                 y += 1;
 638         }
 639
 640         wf = widget_textbox_base(screen->widgets.http_proxy_f);
 641         layout_pair(screen, y, screen->widgets.http_proxy_l, wf);
 642         y++;
 643         wf = widget_textbox_base(screen->widgets.https_proxy_f);
 644         layout_pair(screen, y, screen->widgets.https_proxy_l, wf);
 645         y++;
 646
 647         y += 1;
 648
 649         layout_pair(screen, y, screen->widgets.allow_write_l,
 650                     widget_select_base(screen->widgets.allow_write_f));
 651         y += widget_height(widget_select_base(screen->widgets.allow_write_f));
 652
 653         y += 1;
 654
 655         if (screen->widgets.manual_console_l) {
 656                 layout_pair(screen, y++, screen->widgets.boot_console_l,
 657                         widget_label_base(screen->widgets.manual_console_l));
 658                 widget_move(widget_label_base(screen->widgets.current_console_l),
 659                         y, screen->field_x);
 660                 widget_set_visible(widget_select_base(
 661                         screen->widgets.boot_console_f), false);
 662                 y += 2;
 663         } else if (widget_height(widget_select_base(screen->widgets.boot_console_f))) {
 664                 layout_pair(screen, y, screen->widgets.boot_console_l,
 665                             widget_select_base(screen->widgets.boot_console_f));
 666                 y += widget_height(widget_select_base(screen->widgets.boot_console_f));
 667                 widget_move(widget_label_base(screen->widgets.current_console_l),
 668                         y, screen->field_x);
 669                 y += 2;
 670         } else {
 671                 widget_set_visible(widget_label_base(
 672                                         screen->widgets.boot_console_l), false);
 673                 widget_set_visible(widget_select_base(
 674                                         screen->widgets.boot_console_f), false);
 675                 widget_set_visible(widget_label_base(
 676                                         screen->widgets.current_console_l), false);
 677         }
 678
 679 #ifdef CRYPT_SUPPORT
 680         widget_move(widget_button_base(screen->widgets.update_password_l),
 681                         y, screen->field_x);
 682         y += 2;
 683 #endif
 684
 685         if (screen->net_override) {
 686                 widget_move(widget_label_base(screen->widgets.net_override_l),
 687                                 y, screen->label_x);
 688                 widget_set_visible(widget_label_base(screen->widgets.net_override_l),
 689                                         true);
 690                 y += 1;
 691         }
 692
 693         if (screen->cui->config->safe_mode) {
 694                 widget_move(widget_label_base(screen->widgets.safe_mode),
 695                         y, screen->label_x);
 696                 widget_set_visible(widget_label_base(screen->widgets.safe_mode),
 697                                         true);
 698                 y += 1;
 699         }
 700
 701         widget_move(widget_button_base(screen->widgets.ok_b),
 702                         y, screen->field_x);
 703         widget_move(widget_button_base(screen->widgets.help_b),
 704                         y, screen->field_x + 14);
 705         widget_move(widget_button_base(screen->widgets.cancel_b),
 706                         y, screen->field_x + 28);
 707 }
 708
 709 static void config_screen_network_change(void *arg, int value)
 710 {
 711         struct config_screen *screen = arg;
 712         screen->net_conf_type = value;
 713         widgetset_unpost(screen->widgetset);
 714         config_screen_layout_widgets(screen);
 715         widgetset_post(screen->widgetset);
 716 }
 717
 718 static void config_screen_boot_order_change(void *arg, int value)
 719 {
 720         (void)value;
 721         struct config_screen *screen = arg;
 722         widgetset_unpost(screen->widgetset);
 723         config_screen_layout_widgets(screen);
 724         widgetset_post(screen->widgetset);
 725 }
 726
 727 static void config_screen_autoboot_change(void *arg, int value)
 728 {
 729         struct config_screen *screen = arg;
 730         screen->autoboot_enabled = !!value;
 731         widgetset_unpost(screen->widgetset);
 732         config_screen_layout_widgets(screen);
 733         widgetset_post(screen->widgetset);
 734 }
 735
 736 static void config_screen_add_device(void *arg)
 737 {
 738         struct config_screen *screen = arg;
 739
 740         cui_show_subset(screen->cui, _("Select a boot device to add"),
 741                         screen->widgets.boot_order_f);
 742 }
 743
 744 static void config_screen_autoboot_none(void *arg)
 745 {
 746         struct config_screen *screen = arg;
 747         struct nc_widget_subset *subset = screen->widgets.boot_order_f;
 748
 749         widget_subset_clear_active(subset);
 750
 751         widgetset_unpost(screen->widgetset);
 752         config_screen_layout_widgets(screen);
 753         widgetset_post(screen->widgetset);
 754 }
 755
 756 static void config_screen_autoboot_any(void *arg)
 757 {
 758         struct config_screen *screen = arg;
 759         const struct system_info *sysinfo = screen->cui->sysinfo;
 760         struct nc_widget_subset *subset = screen->widgets.boot_order_f;
 761         int idx;
 762
 763         widget_subset_clear_active(subset);
 764
 765         idx = sysinfo->n_blockdevs + sysinfo->n_interfaces + DEVICE_TYPE_ANY;
 766
 767         widget_subset_make_active(screen->widgets.boot_order_f, idx);
 768
 769         screen->autoboot_enabled = true;
 770
 771         widgetset_unpost(screen->widgetset);
 772         config_screen_layout_widgets(screen);
 773         widgetset_post(screen->widgetset);
 774 }
 775
 776 static void config_screen_update_subset(void *arg,
 777                         struct nc_widget_subset *subset, int idx)
 778 {
 779         struct config_screen *screen = arg;
 780
 781         if (idx >= 0)
 782                 widget_subset_make_active(subset, idx);
 783         if (!screen->autoboot_enabled)
 784                 screen->autoboot_enabled = true;
 785         config_screen_layout_widgets(screen);
 786 }
 787
 788 static struct interface_config *first_active_interface(
 789                 const struct config *config)
 790 {
 791         unsigned int i;
 792
 793         for (i = 0; i < config->network.n_interfaces; i++) {
 794                 if (config->network.interfaces[i]->ignore)
 795                         continue;
 796                 return config->network.interfaces[i];
 797         }
 798         return NULL;
 799 }
 800
 801 static enum net_conf_type find_net_conf_type(const struct config *config)
 802 {
 803         struct interface_config *ifcfg;
 804
 805         ifcfg = first_active_interface(config);
 806
 807         if (!ifcfg)
 808                 return NET_CONF_TYPE_DHCP_ALL;
 809
 810         else if (ifcfg->method == CONFIG_METHOD_DHCP)
 811                 return NET_CONF_TYPE_DHCP_ONE;
 812
 813         else if (ifcfg->method == CONFIG_METHOD_STATIC)
 814                 return NET_CONF_TYPE_STATIC;
 815
 816         assert(0);
 817         return NET_CONF_TYPE_DHCP_ALL;
 818 }
 819
 820 static void config_screen_setup_empty(struct config_screen *screen)
 821 {
 822         widget_new_label(screen->widgetset, 2, screen->field_x,
 823                         _("Waiting for configuration data..."));
 824         screen->widgets.cancel_b = widget_new_button(screen->widgetset,
 825                         4, screen->field_x, 9, _("Cancel"),
 826                         cancel_click, screen);
 827 }
 828
 829 static int find_autoboot_idx(const struct system_info *sysinfo,
 830                 struct autoboot_option *opt)
 831 {
 832         unsigned int i;
 833
 834         if (opt->boot_type == BOOT_DEVICE_TYPE)
 835                 return sysinfo->n_blockdevs + sysinfo->n_interfaces + opt->type;
 836
 837         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 838                 if (!strcmp(sysinfo->blockdevs[i]->uuid, opt->uuid))
 839                         return i;
 840         }
 841
 842         for (i = 0; i < sysinfo->n_interfaces; i++) {
 843                 struct interface_info *info = sysinfo->interfaces[i];
 844                 char mac[20];
 845
 846                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 847
 848                 if (!strcmp(mac, opt->uuid))
 849                         return sysinfo->n_blockdevs + i;
 850         }
 851
 852         return -1;
 853 }
 854
 855 static void config_screen_setup_widgets(struct config_screen *screen,
 856                 const struct config *config,
 857                 const struct system_info *sysinfo)
 858 {
 859         struct nc_widgetset *set = screen->widgetset;
 860         struct interface_config *ifcfg;
 861         char *str, *ip, *mask, *gw, *url, *tty, *label;
 862         enum net_conf_type type;
 863         unsigned int i;
 864         int add_len, clear_len, any_len, min_len = 20;
 865         bool found;
 866
 867         build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
 868                         == N_FIELDS);
 869
 870         type = screen->net_conf_type;
 871         ifcfg = first_active_interface(config);
 872
 873         screen->autoboot_enabled = config->autoboot_enabled;
 874
 875         screen->widgets.autoboot_l = widget_new_label(set, 0, 0,
 876                                         _("Autoboot:"));
 877         screen->widgets.autoboot_f = widget_new_select(set, 0, 0,
 878                                         COLS - screen->field_x - 1);
 879
 880         widget_select_add_option(screen->widgets.autoboot_f, 0, _("Disabled"),
 881                                  !screen->autoboot_enabled);
 882         widget_select_add_option(screen->widgets.autoboot_f, 1, _("Enabled"),
 883                                  screen->autoboot_enabled);
 884
 885         widget_select_on_change(screen->widgets.autoboot_f,
 886                         config_screen_autoboot_change, screen);
 887
 888         add_len = max(min_len, strncols(_("Add Device")));
 889         clear_len = max(min_len, strncols(_("Clear")));
 890         any_len = max(min_len, strncols(_("Clear & Boot Any")));
 891
 892         screen->widgets.boot_add_b = widget_new_button(set, 0, 0, add_len,
 893                                         _("Add Device"),
 894                                         config_screen_add_device, screen);
 895
 896         screen->widgets.boot_none_b = widget_new_button(set, 0, 0, clear_len,
 897                                         _("Clear"),
 898                                         config_screen_autoboot_none, screen);
 899
 900         screen->widgets.boot_any_b = widget_new_button(set, 0, 0, any_len,
 901                                         _("Clear & Boot Any"),
 902                                         config_screen_autoboot_any, screen);
 903
 904         screen->widgets.boot_order_l = widget_new_label(set, 0, 0,
 905                                         _("Boot Order:"));
 906         screen->widgets.boot_order_f = widget_new_subset(set, 0, 0,
 907                                         COLS - screen->field_x,
 908                                         config_screen_update_subset);
 909         screen->widgets.boot_empty_l = widget_new_label(set, 0, 0,
 910                                         _("(None)"));
 911
 912         widget_subset_on_change(screen->widgets.boot_order_f,
 913                         config_screen_boot_order_change, screen);
 914
 915         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 916                 struct blockdev_info *bd = sysinfo->blockdevs[i];
 917
 918                 label = talloc_asprintf(screen, _("disk: %s [uuid: %s]"),
 919                                 bd->name, bd->uuid);
 920
 921                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 922         }
 923
 924         for (i = 0; i < sysinfo->n_interfaces; i++) {
 925                 struct interface_info *info = sysinfo->interfaces[i];
 926                 char mac[20];
 927
 928                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 929
 930                 label = talloc_asprintf(screen, _("net:  %s [mac: %s]"),
 931                                 info->name, mac);
 932
 933                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 934         }
 935
 936         for (i = DEVICE_TYPE_NETWORK; i < DEVICE_TYPE_UNKNOWN; i++) {
 937
 938                 if (i == DEVICE_TYPE_ANY)
 939                         label = talloc_asprintf(screen, _("Any Device"));
 940                 else
 941                         label = talloc_asprintf(screen, _("Any %s device"),
 942                                                 device_type_display_name(i));
 943
 944                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 945         }
 946
 947         for (i = 0; i < config->n_autoboot_opts; i++) {
 948                 struct autoboot_option *opt = &config->autoboot_opts[i];
 949                 int idx;
 950
 951                 idx = find_autoboot_idx(sysinfo, opt);
 952
 953                 if (idx >= 0) {
 954                         widget_subset_make_active(screen->widgets.boot_order_f,
 955                                                   idx);
 956                 } else {
 957                         if (opt->boot_type == BOOT_DEVICE_TYPE)
 958                                 pb_log("%s: Unknown autoboot option: %d\n",
 959                                        __func__, opt->type);
 960                         else
 961                                 pb_log("%s: Unknown autoboot UUID: %s\n",
 962                                        __func__, opt->uuid);
 963                 }
 964         }
 965
 966
 967         str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
 968         screen->widgets.timeout_l = widget_new_label(set, 0, 0, _("Timeout:"));
 969         screen->widgets.timeout_f = widget_new_textbox(set, 0, 0, 5, str);
 970         screen->widgets.timeout_help_l = widget_new_label(set, 0, 0,
 971                                         _("seconds"));
 972
 973         widget_textbox_set_fixed_size(screen->widgets.timeout_f);
 974         widget_textbox_set_validator_integer(screen->widgets.timeout_f, 0, 999);
 975
 976         if (config->ipmi_bootdev) {
 977                 label = talloc_asprintf(screen,
 978                                 _("%s IPMI boot option: %s"),
 979                                 config->ipmi_bootdev_persistent ?
 980                                 _("Persistent") : _("Temporary"),
 981                                 ipmi_bootdev_display_name(config->ipmi_bootdev));
 982                 screen->widgets.ipmi_type_l = widget_new_label(set, 0, 0,
 983                                                         label);
 984                 screen->widgets.ipmi_clear_l = widget_new_label(set, 0, 0,
 985                                                         _("Clear option:"));
 986                 screen->widgets.ipmi_clear_b = widget_new_button(set, 0, 0,
 987                                 strncols(_("Clear IPMI override now")) + 10,
 988                                 _("Clear IPMI override now"),
 989                                 ipmi_clear_click, screen);
 990                 screen->ipmi_override = true;
 991         }
 992
 993         screen->widgets.network_l = widget_new_label(set, 0, 0, _("Network:"));
 994         screen->widgets.network_f = widget_new_select(set, 0, 0,
 995                                                 COLS - screen->field_x - 1);
 996
 997         widget_select_add_option(screen->widgets.network_f,
 998                                         NET_CONF_TYPE_DHCP_ALL,
 999                                         _("DHCP on all active interfaces"),
1000                                         type == NET_CONF_TYPE_DHCP_ALL);
1001         widget_select_add_option(screen->widgets.network_f,
1002                                         NET_CONF_TYPE_DHCP_ONE,
1003                                         _("DHCP on a specific interface"),
1004                                         type == NET_CONF_TYPE_DHCP_ONE);
1005         widget_select_add_option(screen->widgets.network_f,
1006                                         NET_CONF_TYPE_STATIC,
1007                                         _("Static IP configuration"),
1008                                         type == NET_CONF_TYPE_STATIC);
1009
1010         widget_select_on_change(screen->widgets.network_f,
1011                         config_screen_network_change, screen);
1012
1013         screen->widgets.iface_l = widget_new_label(set, 0, 0, _("Device:"));
1014         screen->widgets.iface_f = widget_new_select(set, 0, 0, 50);
1015
1016         for (i = 0; i < sysinfo->n_interfaces; i++) {
1017                 struct interface_info *info = sysinfo->interfaces[i];
1018                 char str[50], mac[20];
1019                 bool is_default;
1020
1021                 is_default = ifcfg && !memcmp(ifcfg->hwaddr, info->hwaddr,
1022                                         sizeof(ifcfg->hwaddr));
1023
1024                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
1025                 snprintf(str, sizeof(str), "%s [%s, %s]", info->name, mac,
1026                                 info->link ? _("link up") : _("link down"));
1027
1028                 widget_select_add_option(screen->widgets.iface_f,
1029                                                 i, str, is_default);
1030         }
1031
1032         url = gw = ip = mask = NULL;
1033         if (ifcfg && ifcfg->method == CONFIG_METHOD_STATIC) {
1034                 char *sep;
1035
1036                 str = talloc_strdup(screen, ifcfg->static_config.address);
1037                 sep = strchr(str, '/');
1038                 ip = str;
1039
1040                 if (sep) {
1041                         *sep = '\0';
1042                         mask = sep + 1;
1043                 }
1044                 gw = ifcfg->static_config.gateway;
1045                 url = ifcfg->static_config.url;
1046         }
1047
1048         screen->net_override = ifcfg && ifcfg->override;
1049         if (screen->net_override) {
1050                 screen->widgets.net_override_l = widget_new_label(set, 0, 0,
1051                         _("Network Override Active! 'OK' will overwrite interface config"));
1052         }
1053
1054         screen->widgets.ip_addr_l = widget_new_label(set, 0, 0, _("IP/mask:"));
1055         screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, ip);
1056         screen->widgets.ip_mask_l = widget_new_label(set, 0, 0, "/");
1057         screen->widgets.ip_mask_f = widget_new_textbox(set, 0, 0, 3, mask);
1058         screen->widgets.ip_addr_mask_help_l =
1059                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.10 / 24)"));
1060
1061         widget_textbox_set_fixed_size(screen->widgets.ip_addr_f);
1062         widget_textbox_set_fixed_size(screen->widgets.ip_mask_f);
1063         widget_textbox_set_validator_ip(screen->widgets.ip_addr_f);
1064         widget_textbox_set_validator_integer(screen->widgets.ip_mask_f, 1, 127);
1065
1066         screen->widgets.gateway_l = widget_new_label(set, 0, 0, _("Gateway:"));
1067         screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, gw);
1068         screen->widgets.gateway_help_l =
1069                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.1)"));
1070
1071         widget_textbox_set_fixed_size(screen->widgets.gateway_f);
1072         widget_textbox_set_validator_ip(screen->widgets.gateway_f);
1073
1074         screen->widgets.url_l = widget_new_label(set, 0, 0, _("URL:"));
1075         screen->widgets.url_f = widget_new_textbox(set, 0, 0, 32, url);
1076         widget_textbox_set_validator_url(screen->widgets.url_f);
1077         screen->widgets.url_help_l =
1078                 widget_new_label(set, 0, 0, _("(eg. tftp://)"));
1079
1080         str = talloc_strdup(screen, "");
1081         for (i = 0; i < config->network.n_dns_servers; i++) {
1082                 str = talloc_asprintf_append(str, "%s%s",
1083                                 (i == 0) ? "" : " ",
1084                                 config->network.dns_servers[i]);
1085         }
1086
1087         screen->widgets.dns_l = widget_new_label(set, 0, 0,
1088                                         _("DNS Server(s):"));
1089         screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 32, str);
1090         screen->widgets.dns_help_l =
1091                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.2)"));
1092
1093         widget_textbox_set_validator_ip_multi(screen->widgets.dns_f);
1094
1095         screen->widgets.dns_dhcp_help_l = widget_new_label(set, 0, 0,
1096                         _("(if not provided by DHCP server)"));
1097
1098         screen->widgets.http_proxy_l = widget_new_label(set, 0, 0,
1099                                         _("HTTP Proxy:"));
1100         screen->widgets.http_proxy_f = widget_new_textbox(set, 0, 0, 32,
1101                                                 config->http_proxy);
1102         screen->widgets.https_proxy_l = widget_new_label(set, 0, 0,
1103                                         _("HTTPS Proxy:"));
1104         screen->widgets.https_proxy_f = widget_new_textbox(set, 0, 0, 32,
1105                                                 config->https_proxy);
1106
1107         if (config->safe_mode)
1108                 screen->widgets.safe_mode = widget_new_label(set, 0, 0,
1109                          _("Selecting 'OK' will exit safe mode"));
1110
1111         screen->widgets.allow_write_l = widget_new_label(set, 0, 0,
1112                         _("Disk R/W:"));
1113         screen->widgets.allow_write_f = widget_new_select(set, 0, 0,
1114                                                 COLS - screen->field_x - 1);
1115
1116         widget_select_add_option(screen->widgets.allow_write_f, 0,
1117                                 _("Prevent all writes to disk"),
1118                                 !config->allow_writes);
1119
1120         widget_select_add_option(screen->widgets.allow_write_f, 1,
1121                                 _("Allow bootloader scripts to modify disks"),
1122                                 config->allow_writes);
1123
1124         screen->widgets.boot_console_l = widget_new_label(set, 0, 0,
1125                         _("Boot console:"));
1126         screen->widgets.boot_console_f = widget_new_select(set, 0, 0,
1127                                                 COLS - screen->field_x - 1);
1128
1129         for (i = 0; i < config->n_consoles; i++){
1130                 found = config->boot_console &&
1131                         strncmp(config->boot_console, config->consoles[i],
1132                                 strlen(config->boot_console)) == 0;
1133                 widget_select_add_option(screen->widgets.boot_console_f, i,
1134                                         config->consoles[i], found);
1135         }
1136
1137         if (config->manual_console) {
1138                 label = talloc_asprintf(screen, _("Manually set: '%s'"),
1139                                         config->boot_console);
1140                 screen->widgets.manual_console_l = widget_new_label(set, 0, 0, label);
1141         }
1142
1143         tty = talloc_asprintf(screen, _("Current interface: %s"),
1144                                 ttyname(STDIN_FILENO));
1145         screen->widgets.current_console_l = widget_new_label(set, 0 , 0, tty);
1146
1147 #ifdef CRYPT_SUPPORT
1148         screen->widgets.update_password_l = widget_new_button(set, 0, 0, 30,
1149                         _("Update system password"), password_click, screen);
1150 #endif
1151
1152         screen->widgets.ok_b = widget_new_button(set, 0, 0, 10, _("OK"),
1153                         ok_click, screen);
1154         screen->widgets.help_b = widget_new_button(set, 0, 0, 10, _("Help"),
1155                         help_click, screen);
1156         screen->widgets.cancel_b = widget_new_button(set, 0, 0, 10, _("Cancel"),
1157                         cancel_click, screen);
1158 }
1159
1160 static void config_screen_widget_focus(struct nc_widget *widget, void *arg)
1161 {
1162         struct config_screen *screen = arg;
1163         int w_y, w_height, w_focus, s_max, adjust;
1164
1165         w_height = widget_height(widget);
1166         w_focus = widget_focus_y(widget);
1167         w_y = widget_y(widget) + w_focus;
1168         s_max = getmaxy(screen->scr.sub_ncw) - 1;
1169
1170         if (w_y < screen->scroll_y)
1171                 screen->scroll_y = w_y;
1172
1173         else if (w_y + screen->scroll_y + 1 > s_max) {
1174                 /* Fit as much of the widget into the screen as possible */
1175                 adjust = min(s_max - 1, w_height - w_focus);
1176                 if (w_y + adjust >= screen->scroll_y + s_max)
1177                         screen->scroll_y = max(0, 1 + w_y + adjust - s_max);
1178         } else
1179                 return;
1180
1181         pad_refresh(screen);
1182 }
1183
1184 static void config_screen_draw(struct config_screen *screen,
1185                 const struct config *config,
1186                 const struct system_info *sysinfo)
1187 {
1188         bool repost = false;
1189         int height;
1190
1191         /* The size of the pad we'll need depends on the number of interfaces.
1192          *
1193          * We use N_FIELDS (which is quite conservative, as some fields share
1194          * a line) as a base, then:
1195          * - add 6 (as the network select & boot device select fields take 3
1196          *   lines each),
1197          * - add n_interfaces for every field in the network select field, and
1198          * - add (n_blockdevs + n_interfaces) for every field in the boot device
1199          *   select field
1200          */
1201         height = N_FIELDS + 6;
1202         if (sysinfo) {
1203                 height += sysinfo->n_interfaces;
1204                 height += (sysinfo->n_blockdevs + sysinfo->n_interfaces);
1205         }
1206         if (!screen->pad || getmaxy(screen->pad) < height) {
1207                 if (screen->pad)
1208                         delwin(screen->pad);
1209                 screen->pad = newpad(height, COLS + 10);
1210         }
1211
1212         if (screen->widgetset) {
1213                 widgetset_unpost(screen->widgetset);
1214                 talloc_free(screen->widgetset);
1215                 repost = true;
1216         }
1217
1218         screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
1219                         screen->pad);
1220         widgetset_set_widget_focus(screen->widgetset,
1221                         config_screen_widget_focus, screen);
1222
1223         if (!config || !sysinfo) {
1224                 config_screen_setup_empty(screen);
1225         } else {
1226                 screen->net_conf_type = find_net_conf_type(config);
1227                 config_screen_setup_widgets(screen, config, sysinfo);
1228                 config_screen_layout_widgets(screen);
1229         }
1230
1231         if (repost)
1232                 widgetset_post(screen->widgetset);
1233 }
1234
1235 void config_screen_update(struct config_screen *screen,
1236                 const struct config *config,
1237                 const struct system_info *sysinfo)
1238 {
1239         if (screen->cui->current != config_screen_scr(screen)) {
1240                 screen->need_update = true;
1241                 return;
1242         }
1243
1244         config_screen_draw(screen, config, sysinfo);
1245         pad_refresh(screen);
1246 }
1247
1248 static int config_screen_post(struct nc_scr *scr)
1249 {
1250         struct config_screen *screen = config_screen_from_scr(scr);
1251
1252         /* We may have been posted after an auth action completed */
1253         if (screen->exit) {
1254                 screen->on_exit(screen->cui);
1255                 return 0;
1256         }
1257
1258         if (screen->need_update) {
1259                 config_screen_draw(screen, screen->cui->config,
1260                                    screen->cui->sysinfo);
1261                 screen->need_update = false;
1262         } else {
1263                 widgetset_post(screen->widgetset);
1264         }
1265
1266         nc_scr_frame_draw(scr);
1267         if (screen->need_redraw) {
1268                 redrawwin(scr->main_ncw);
1269                 screen->need_redraw = false;
1270         }
1271         wrefresh(screen->scr.main_ncw);
1272         pad_refresh(screen);
1273         return 0;
1274 }
1275
1276 static int config_screen_destroy(void *arg)
1277 {
1278         struct config_screen *screen = arg;
1279         if (screen->pad)
1280                 delwin(screen->pad);
1281         return 0;
1282 }
1283
1284 struct config_screen *config_screen_init(struct cui *cui,
1285                 const struct config *config,
1286                 const struct system_info *sysinfo,
1287                 void (*on_exit)(struct cui *))
1288 {
1289         struct config_screen *screen;
1290
1291         screen = talloc_zero(cui, struct config_screen);
1292         talloc_set_destructor(screen, config_screen_destroy);
1293         nc_scr_init(&screen->scr, pb_config_screen_sig, 0,
1294                         cui, config_screen_process_key,
1295                         config_screen_post, config_screen_unpost,
1296                         config_screen_resize);
1297
1298         screen->cui = cui;
1299         screen->on_exit = on_exit;
1300         screen->need_redraw = false;
1301         screen->need_update = false;
1302         screen->label_x = 2;
1303         screen->field_x = 17;
1304
1305         screen->ipmi_override = false;
1306
1307         screen->scr.frame.ltitle = talloc_strdup(screen,
1308                         _("Petitboot System Configuration"));
1309         screen->scr.frame.rtitle = NULL;
1310         screen->scr.frame.help = talloc_strdup(screen,
1311                         _("tab=next, shift+tab=previous, x=exit, h=help"));
1312         nc_scr_frame_draw(&screen->scr);
1313
1314         scrollok(screen->scr.sub_ncw, true);
1315
1316         config_screen_draw(screen, config, sysinfo);
1317
1318         return screen;
1319 }