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        29
  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
  57         void                    (*on_exit)(struct cui *);
  58
  59         int                     scroll_y;
  60
  61         int                     label_x;
  62         int                     field_x;
  63         int                     network_config_y;
  64
  65         enum net_conf_type      net_conf_type;
  66
  67         bool                    autoboot_enabled;
  68
  69         struct {
  70                 struct nc_widget_label          *boot_order_l;
  71                 struct nc_widget_subset         *boot_order_f;
  72                 struct nc_widget_label          *boot_empty_l;
  73                 struct nc_widget_button         *boot_add_b;
  74                 struct nc_widget_button         *boot_none_b;
  75                 struct nc_widget_button         *boot_any_b;
  76                 struct nc_widget_textbox        *timeout_f;
  77                 struct nc_widget_label          *timeout_l;
  78                 struct nc_widget_label          *timeout_help_l;
  79
  80                 struct nc_widget_label          *network_l;
  81                 struct nc_widget_select         *network_f;
  82
  83                 struct nc_widget_label          *iface_l;
  84                 struct nc_widget_select         *iface_f;
  85                 struct nc_widget_label          *ip_addr_l;
  86                 struct nc_widget_textbox        *ip_addr_f;
  87                 struct nc_widget_label          *ip_mask_l;
  88                 struct nc_widget_textbox        *ip_mask_f;
  89                 struct nc_widget_label          *ip_addr_mask_help_l;
  90                 struct nc_widget_label          *gateway_l;
  91                 struct nc_widget_textbox        *gateway_f;
  92                 struct nc_widget_label          *gateway_help_l;
  93                 struct nc_widget_label          *dns_l;
  94                 struct nc_widget_textbox        *dns_f;
  95                 struct nc_widget_label          *dns_dhcp_help_l;
  96                 struct nc_widget_label          *dns_help_l;
  97
  98                 struct nc_widget_label          *safe_mode;
  99                 struct nc_widget_button         *ok_b;
 100                 struct nc_widget_button         *help_b;
 101                 struct nc_widget_button         *cancel_b;
 102         } widgets;
 103 };
 104
 105 static struct config_screen *config_screen_from_scr(struct nc_scr *scr)
 106 {
 107         struct config_screen *config_screen;
 108
 109         assert(scr->sig == pb_config_screen_sig);
 110         config_screen = (struct config_screen *)
 111                 ((char *)scr - (size_t)&((struct config_screen *)0)->scr);
 112         assert(config_screen->scr.sig == pb_config_screen_sig);
 113         return config_screen;
 114 }
 115
 116 static void pad_refresh(struct config_screen *screen)
 117 {
 118         int y, x, rows, cols;
 119
 120         getmaxyx(screen->scr.sub_ncw, rows, cols);
 121         getbegyx(screen->scr.sub_ncw, y, x);
 122
 123         prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
 124 }
 125
 126 static void config_screen_process_key(struct nc_scr *scr, int key)
 127 {
 128         struct config_screen *screen = config_screen_from_scr(scr);
 129         bool handled;
 130
 131         handled = widgetset_process_key(screen->widgetset, key);
 132
 133         if (!handled) {
 134                 switch (key) {
 135                 case 'x':
 136                 case 27: /* esc */
 137                         screen->exit = true;
 138                         break;
 139                 case 'h':
 140                         screen->show_help = true;
 141                         break;
 142                 }
 143         }
 144
 145         if (screen->exit) {
 146                 screen->on_exit(screen->cui);
 147
 148         } else if (screen->show_help) {
 149                 screen->show_help = false;
 150                 screen->need_redraw = true;
 151                 cui_show_help(screen->cui, _("System Configuration"),
 152                                 &config_help_text);
 153
 154         } else if (handled && !screen->show_subset) {
 155                 pad_refresh(screen);
 156         }
 157 }
 158
 159 static void config_screen_resize(struct nc_scr *scr)
 160 {
 161         struct config_screen *screen = config_screen_from_scr(scr);
 162         (void)screen;
 163 }
 164
 165 static int config_screen_post(struct nc_scr *scr)
 166 {
 167         struct config_screen *screen = config_screen_from_scr(scr);
 168         screen->show_subset = false;
 169         widgetset_post(screen->widgetset);
 170         nc_scr_frame_draw(scr);
 171         if (screen->need_redraw) {
 172                 redrawwin(scr->main_ncw);
 173                 screen->need_redraw = false;
 174         }
 175         wrefresh(screen->scr.main_ncw);
 176         pad_refresh(screen);
 177         return 0;
 178 }
 179
 180 static int config_screen_unpost(struct nc_scr *scr)
 181 {
 182         struct config_screen *screen = config_screen_from_scr(scr);
 183         widgetset_unpost(screen->widgetset);
 184         return 0;
 185 }
 186
 187 struct nc_scr *config_screen_scr(struct config_screen *screen)
 188 {
 189         return &screen->scr;
 190 }
 191
 192 static int screen_process_form(struct config_screen *screen)
 193 {
 194         const struct system_info *sysinfo = screen->cui->sysinfo;
 195         enum net_conf_type net_conf_type;
 196         struct interface_config *iface;
 197         char *str, *end;
 198         struct config *config;
 199         int i, n_boot_opts, rc, idx;
 200         unsigned int *order;
 201         char mac[20];
 202
 203         config = config_copy(screen, screen->cui->config);
 204
 205         talloc_free(config->autoboot_opts);
 206         config->n_autoboot_opts = 0;
 207
 208         n_boot_opts = widget_subset_get_order(config, &order,
 209                                               screen->widgets.boot_order_f);
 210
 211         config->autoboot_enabled = n_boot_opts > 0;
 212
 213         config->n_autoboot_opts = n_boot_opts;
 214         config->autoboot_opts = talloc_array(config, struct autoboot_option,
 215                                              n_boot_opts);
 216
 217         for (i = 0; i < n_boot_opts; i++) {
 218                 if (order[i] < sysinfo->n_blockdevs) {
 219                         /* disk uuid */
 220                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
 221                         config->autoboot_opts[i].uuid = talloc_strdup(config,
 222                                                         sysinfo->blockdevs[order[i]]->uuid);
 223                 } else if(order[i] < (sysinfo->n_blockdevs + sysinfo->n_interfaces)) {
 224                         /* net uuid */
 225                         order[i] -= sysinfo->n_blockdevs;
 226                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_UUID;
 227                         mac_str(sysinfo->interfaces[order[i]]->hwaddr,
 228                                 sysinfo->interfaces[order[i]]->hwaddr_size,
 229                                 mac, sizeof(mac));
 230                         config->autoboot_opts[i].uuid = talloc_strdup(config, mac);
 231                 } else {
 232                         /* device type */
 233                         order[i] -= (sysinfo->n_blockdevs + sysinfo->n_interfaces);
 234                         config->autoboot_opts[i].boot_type = BOOT_DEVICE_TYPE;
 235                         config->autoboot_opts[i].type = order[i];
 236                 }
 237         }
 238
 239         str = widget_textbox_get_value(screen->widgets.timeout_f);
 240         if (str) {
 241                 unsigned long x;
 242                 errno = 0;
 243                 x = strtoul(str, &end, 10);
 244                 if (!errno && end != str)
 245                         config->autoboot_timeout_sec = x;
 246         }
 247
 248         net_conf_type = widget_select_get_value(screen->widgets.network_f);
 249
 250         /* if we don't have any network interfaces, prevent per-interface
 251          * configuration */
 252         if (sysinfo->n_interfaces == 0)
 253                 net_conf_type = NET_CONF_TYPE_DHCP_ALL;
 254
 255         if (net_conf_type == NET_CONF_TYPE_DHCP_ALL) {
 256                 config->network.n_interfaces = 0;
 257
 258         } else {
 259                 iface = talloc_zero(config, struct interface_config);
 260                 config->network.n_interfaces = 1;
 261                 config->network.interfaces = talloc_array(config,
 262                                 struct interface_config *, 1);
 263                 config->network.interfaces[0] = iface;
 264
 265                 /* copy hwaddr (from the sysinfo interface data) to
 266                  * the configuration */
 267                 idx = widget_select_get_value(screen->widgets.iface_f);
 268                 memcpy(iface->hwaddr, sysinfo->interfaces[idx]->hwaddr,
 269                                 sizeof(iface->hwaddr));
 270         }
 271
 272         if (net_conf_type == NET_CONF_TYPE_DHCP_ONE) {
 273                 iface->method = CONFIG_METHOD_DHCP;
 274         }
 275
 276         if (net_conf_type == NET_CONF_TYPE_STATIC) {
 277                 char *ip, *mask, *gateway;
 278
 279                 ip = widget_textbox_get_value(screen->widgets.ip_addr_f);
 280                 mask = widget_textbox_get_value(screen->widgets.ip_mask_f);
 281                 gateway = widget_textbox_get_value(screen->widgets.gateway_f);
 282
 283                 if (!ip || !*ip || !mask || !*mask) {
 284                         screen->scr.frame.status =
 285                                 _("No IP / mask values are set");
 286                         nc_scr_frame_draw(&screen->scr);
 287                         talloc_free(config);
 288                         return -1;
 289                 }
 290
 291                 iface->method = CONFIG_METHOD_STATIC;
 292                 iface->static_config.address = talloc_asprintf(iface, "%s/%s",
 293                                 ip, mask);
 294                 iface->static_config.gateway = talloc_strdup(iface, gateway);
 295         }
 296
 297         str = widget_textbox_get_value(screen->widgets.dns_f);
 298         talloc_free(config->network.dns_servers);
 299         config->network.dns_servers = NULL;
 300         config->network.n_dns_servers = 0;
 301
 302         if (str && strlen(str)) {
 303                 char *dns, *tmp;
 304                 int i;
 305
 306                 for (;;) {
 307                         dns = strtok_r(str, " \t", &tmp);
 308
 309                         if (!dns)
 310                                 break;
 311
 312                         i = config->network.n_dns_servers++;
 313                         config->network.dns_servers = talloc_realloc(config,
 314                                         config->network.dns_servers,
 315                                         const char *,
 316                                         config->network.n_dns_servers);
 317                         config->network.dns_servers[i] =
 318                                 talloc_strdup(config, dns);
 319
 320                         str = NULL;
 321                 }
 322         }
 323
 324         config->safe_mode = false;
 325         rc = cui_send_config(screen->cui, config);
 326         talloc_free(config);
 327
 328         if (rc)
 329                 pb_log("cui_send_config failed!\n");
 330         else
 331                 pb_debug("config sent!\n");
 332
 333         return 0;
 334 }
 335
 336 static void ok_click(void *arg)
 337 {
 338         struct config_screen *screen = arg;
 339         if (screen_process_form(screen))
 340                 /* errors are written to the status line, so we'll need
 341                  * to refresh */
 342                 wrefresh(screen->scr.main_ncw);
 343         else
 344                 screen->exit = true;
 345 }
 346
 347 static void help_click(void *arg)
 348 {
 349         struct config_screen *screen = arg;
 350         screen->show_help = true;
 351 }
 352
 353 static void cancel_click(void *arg)
 354 {
 355         struct config_screen *screen = arg;
 356         screen->exit = true;
 357 }
 358
 359 static int layout_pair(struct config_screen *screen, int y,
 360                 struct nc_widget_label *label,
 361                 struct nc_widget *field)
 362 {
 363         struct nc_widget *label_w = widget_label_base(label);
 364         widget_move(label_w, y, screen->label_x);
 365         widget_move(field, y, screen->field_x);
 366         return max(widget_height(label_w), widget_height(field));
 367 }
 368
 369 static void config_screen_layout_widgets(struct config_screen *screen)
 370 {
 371         struct nc_widget *wl, *wf, *wh;
 372         int y, x, help_x;
 373         bool show;
 374
 375         y = 1;
 376         help_x = screen->field_x + 2 +
 377                 widget_width(widget_textbox_base(screen->widgets.dns_f));
 378
 379         y += 1;
 380
 381         wl = widget_label_base(screen->widgets.boot_order_l);
 382         widget_set_visible(wl, true);
 383         widget_move(wl, y, screen->label_x);
 384
 385         wf = widget_subset_base(screen->widgets.boot_order_f);
 386         widget_move(wf, y, screen->field_x);
 387         wl = widget_label_base(screen->widgets.boot_empty_l);
 388         widget_move(wl, y, screen->field_x);
 389
 390         if (widget_subset_height(screen->widgets.boot_order_f)) {
 391                 widget_set_visible(wf, true);
 392                 widget_set_visible(wl, false);
 393                 y += widget_height(wf);
 394         } else {
 395                 widget_set_visible(wl, true);
 396                 widget_set_visible(wf, false);
 397                 y += 1;
 398         }
 399
 400         y += 1;
 401
 402         widget_move(widget_button_base(screen->widgets.boot_add_b),
 403                         y, screen->field_x);
 404         widget_move(widget_button_base(screen->widgets.boot_any_b),
 405                         y, screen->field_x + 12);
 406         widget_move(widget_button_base(screen->widgets.boot_none_b),
 407                         y, screen->field_x + 30);
 408
 409         wf = widget_button_base(screen->widgets.boot_add_b);
 410         if (widget_subset_n_inactive(screen->widgets.boot_order_f))
 411                 widget_set_visible(wf, true);
 412         else
 413                 widget_set_visible(wf, false);
 414
 415         y += 2;
 416
 417         wf = widget_textbox_base(screen->widgets.timeout_f);
 418         wl = widget_label_base(screen->widgets.timeout_l);
 419         wh = widget_label_base(screen->widgets.timeout_help_l);
 420         widget_set_visible(wl, screen->autoboot_enabled);
 421         widget_set_visible(wf, screen->autoboot_enabled);
 422         if (screen->autoboot_enabled) {
 423                 widget_set_visible(wh, screen->autoboot_enabled);
 424                 widget_move(wl, y, screen->label_x);
 425                 widget_move(wf, y, screen->field_x);
 426                 widget_move(wh, y, screen->field_x + widget_width(wf) + 1);
 427                 y += 2;
 428         }
 429
 430         y += layout_pair(screen, y, screen->widgets.network_l,
 431                         widget_select_base(screen->widgets.network_f));
 432
 433         y += 1;
 434
 435         /* conditionally show iface select */
 436         wl = widget_label_base(screen->widgets.iface_l);
 437         wf = widget_select_base(screen->widgets.iface_f);
 438
 439         show = screen->net_conf_type == NET_CONF_TYPE_DHCP_ONE ||
 440                 screen->net_conf_type == NET_CONF_TYPE_STATIC;
 441
 442         widget_set_visible(wl, show);
 443         widget_set_visible(wf, show);
 444
 445         if (show)
 446                 y += layout_pair(screen, y, screen->widgets.iface_l, wf) + 1;
 447
 448         /* conditionally show static IP params */
 449         show = screen->net_conf_type == NET_CONF_TYPE_STATIC;
 450
 451         wl = widget_label_base(screen->widgets.ip_addr_l);
 452         wf = widget_textbox_base(screen->widgets.ip_addr_f);
 453         widget_set_visible(wl, show);
 454         widget_set_visible(wf, show);
 455         x = screen->field_x + widget_width(wf) + 1;
 456
 457         if (show)
 458                 layout_pair(screen, y, screen->widgets.ip_addr_l, wf);
 459
 460         wl = widget_label_base(screen->widgets.ip_mask_l);
 461         wf = widget_textbox_base(screen->widgets.ip_mask_f);
 462         widget_set_visible(wl, show);
 463         widget_set_visible(wf, show);
 464
 465         if (show) {
 466                 widget_move(wl, y, x);
 467                 widget_move(wf, y, x + 2);
 468         }
 469
 470         /* help for IP/mask */
 471         wh = widget_label_base(screen->widgets.ip_addr_mask_help_l);
 472         widget_set_visible(wh, show);
 473         if (show) {
 474                 widget_move(wh, y, help_x);
 475                 y++;
 476         }
 477
 478         wl = widget_label_base(screen->widgets.gateway_l);
 479         wf = widget_textbox_base(screen->widgets.gateway_f);
 480         wh = widget_label_base(screen->widgets.gateway_help_l);
 481         widget_set_visible(wl, show);
 482         widget_set_visible(wf, show);
 483         widget_set_visible(wh, show);
 484
 485         if (show) {
 486                 layout_pair(screen, y, screen->widgets.gateway_l, wf);
 487                 widget_move(wh, y, help_x);
 488                 y++;
 489         }
 490
 491         wh = widget_label_base(screen->widgets.dns_help_l);
 492         layout_pair(screen, y, screen->widgets.dns_l,
 493                         widget_textbox_base(screen->widgets.dns_f));
 494         widget_move(wh, y, help_x);
 495         y++;
 496
 497         /* we show the DNS/DHCP help if we're configuring DHCP */
 498         show = screen->net_conf_type != NET_CONF_TYPE_STATIC;
 499         wl = widget_label_base(screen->widgets.dns_dhcp_help_l);
 500         widget_set_visible(wl, show);
 501         if (show) {
 502                 widget_move(wl, y, screen->field_x);
 503                 y += 1;
 504         }
 505
 506         y += 1;
 507
 508         show = screen->cui->config->safe_mode;
 509         if (show) {
 510                 widget_move(widget_label_base(screen->widgets.safe_mode),
 511                         y, screen->field_x);
 512                 y += 1;
 513         }
 514
 515         widget_move(widget_button_base(screen->widgets.ok_b),
 516                         y, screen->field_x);
 517         widget_move(widget_button_base(screen->widgets.help_b),
 518                         y, screen->field_x + 10);
 519         widget_move(widget_button_base(screen->widgets.cancel_b),
 520                         y, screen->field_x + 24);
 521 }
 522
 523 static void config_screen_network_change(void *arg, int value)
 524 {
 525         struct config_screen *screen = arg;
 526         screen->net_conf_type = value;
 527         widgetset_unpost(screen->widgetset);
 528         config_screen_layout_widgets(screen);
 529         widgetset_post(screen->widgetset);
 530 }
 531
 532 static void config_screen_boot_order_change(void *arg, int value)
 533 {
 534         (void)value;
 535         struct config_screen *screen = arg;
 536         widgetset_unpost(screen->widgetset);
 537         config_screen_layout_widgets(screen);
 538         widgetset_post(screen->widgetset);
 539 }
 540
 541 static void config_screen_add_device(void *arg)
 542 {
 543         struct config_screen *screen = arg;
 544
 545         screen->show_subset = true;
 546         cui_show_subset(screen->cui, _("Select an option"),
 547                         screen->widgets.boot_order_f);
 548 }
 549
 550 static void config_screen_autoboot_none(void *arg)
 551 {
 552         struct config_screen *screen = arg;
 553         struct nc_widget_subset *subset = screen->widgets.boot_order_f;
 554
 555         widget_subset_clear_active(subset);
 556         screen->autoboot_enabled = false;
 557
 558         widgetset_unpost(screen->widgetset);
 559         config_screen_layout_widgets(screen);
 560         widgetset_post(screen->widgetset);
 561 }
 562
 563 static void config_screen_autoboot_any(void *arg)
 564 {
 565         struct config_screen *screen = arg;
 566         const struct system_info *sysinfo = screen->cui->sysinfo;
 567         struct nc_widget_subset *subset = screen->widgets.boot_order_f;
 568         int idx;
 569
 570         widget_subset_clear_active(subset);
 571
 572         idx = sysinfo->n_blockdevs + sysinfo->n_interfaces + DEVICE_TYPE_ANY;
 573
 574         widget_subset_make_active(screen->widgets.boot_order_f, idx);
 575
 576         screen->autoboot_enabled = true;
 577
 578         widgetset_unpost(screen->widgetset);
 579         config_screen_layout_widgets(screen);
 580         widgetset_post(screen->widgetset);
 581 }
 582
 583 static void config_screen_update_subset(void *arg,
 584                         struct nc_widget_subset *subset, int idx)
 585 {
 586         struct config_screen *screen = arg;
 587
 588         if (idx >= 0)
 589                 widget_subset_make_active(subset, idx);
 590         if (!screen->autoboot_enabled)
 591                 screen->autoboot_enabled = true;
 592         config_screen_layout_widgets(screen);
 593 }
 594
 595 static struct interface_config *first_active_interface(
 596                 const struct config *config)
 597 {
 598         unsigned int i;
 599
 600         for (i = 0; i < config->network.n_interfaces; i++) {
 601                 if (config->network.interfaces[i]->ignore)
 602                         continue;
 603                 return config->network.interfaces[i];
 604         }
 605         return NULL;
 606 }
 607
 608 static enum net_conf_type find_net_conf_type(const struct config *config)
 609 {
 610         struct interface_config *ifcfg;
 611
 612         ifcfg = first_active_interface(config);
 613
 614         if (!ifcfg)
 615                 return NET_CONF_TYPE_DHCP_ALL;
 616
 617         else if (ifcfg->method == CONFIG_METHOD_DHCP)
 618                 return NET_CONF_TYPE_DHCP_ONE;
 619
 620         else if (ifcfg->method == CONFIG_METHOD_STATIC)
 621                 return NET_CONF_TYPE_STATIC;
 622
 623         assert(0);
 624         return NET_CONF_TYPE_DHCP_ALL;
 625 }
 626
 627 static void config_screen_setup_empty(struct config_screen *screen)
 628 {
 629         widget_new_label(screen->widgetset, 2, screen->field_x,
 630                         _("Waiting for configuration data..."));
 631         screen->widgets.cancel_b = widget_new_button(screen->widgetset,
 632                         4, screen->field_x, 9, _("Cancel"),
 633                         cancel_click, screen);
 634 }
 635
 636 static int find_autoboot_idx(const struct system_info *sysinfo,
 637                 struct autoboot_option *opt)
 638 {
 639         unsigned int i;
 640
 641         if (opt->boot_type == BOOT_DEVICE_TYPE)
 642                 return sysinfo->n_blockdevs + sysinfo->n_interfaces + opt->type;
 643
 644         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 645                 if (!strcmp(sysinfo->blockdevs[i]->uuid, opt->uuid))
 646                         return i;
 647         }
 648
 649         for (i = 0; i < sysinfo->n_interfaces; i++) {
 650                 struct interface_info *info = sysinfo->interfaces[i];
 651                 char mac[20];
 652
 653                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 654
 655                 if (!strcmp(mac, opt->uuid))
 656                         return sysinfo->n_blockdevs + i;
 657         }
 658
 659         return -1;
 660 }
 661
 662 static void config_screen_setup_widgets(struct config_screen *screen,
 663                 const struct config *config,
 664                 const struct system_info *sysinfo)
 665 {
 666         struct nc_widgetset *set = screen->widgetset;
 667         struct interface_config *ifcfg;
 668         char *str, *ip, *mask, *gw;
 669         enum net_conf_type type;
 670         unsigned int i;
 671
 672         build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
 673                         == N_FIELDS);
 674
 675         type = screen->net_conf_type;
 676         ifcfg = first_active_interface(config);
 677
 678         screen->widgets.boot_add_b = widget_new_button(set, 0, 0, 10,
 679                                         _("Add Device"), config_screen_add_device,
 680                                         screen);
 681
 682         screen->widgets.boot_none_b = widget_new_button(set, 0, 0, 10,
 683                                         _("Clear"),
 684                                         config_screen_autoboot_none, screen);
 685
 686         screen->widgets.boot_any_b = widget_new_button(set, 0, 0, 16,
 687                                         _("Clear & Boot Any"), config_screen_autoboot_any,
 688                                         screen);
 689
 690         screen->widgets.boot_order_l = widget_new_label(set, 0, 0,
 691                                         _("Boot order:"));
 692         screen->widgets.boot_order_f = widget_new_subset(set, 0, 0,
 693                                         COLS - screen->field_x,
 694                                         config_screen_update_subset);
 695         screen->widgets.boot_empty_l = widget_new_label(set, 0, 0,
 696                                         _("(None)"));
 697
 698         widget_subset_on_change(screen->widgets.boot_order_f,
 699                         config_screen_boot_order_change, screen);
 700
 701         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 702                 struct blockdev_info *bd = sysinfo->blockdevs[i];
 703                 char *label;
 704
 705                 label = talloc_asprintf(screen, _("disk: %s [uuid: %s]"),
 706                                 bd->name, bd->uuid);
 707
 708                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 709         }
 710
 711         for (i = 0; i < sysinfo->n_interfaces; i++) {
 712                 struct interface_info *info = sysinfo->interfaces[i];
 713                 char *label, mac[20];
 714
 715                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 716
 717                 label = talloc_asprintf(screen, _("net:  %s [mac: %s]"),
 718                                 info->name, mac);
 719
 720                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 721         }
 722
 723         for (i = DEVICE_TYPE_NETWORK; i < DEVICE_TYPE_NETWORK + 4; i++) {
 724                 char *label;
 725
 726                 if (i == DEVICE_TYPE_ANY)
 727                         label = talloc_asprintf(screen, _("Any Device"));
 728                 else
 729                         label = talloc_asprintf(screen, _("Any %s device"),
 730                                                 device_type_display_name(i));
 731
 732                 widget_subset_add_option(screen->widgets.boot_order_f, label);
 733         }
 734
 735         screen->autoboot_enabled = config->n_autoboot_opts;
 736         for (i = 0; i < config->n_autoboot_opts; i++) {
 737                 struct autoboot_option *opt = &config->autoboot_opts[i];
 738                 int idx;
 739
 740                 idx = find_autoboot_idx(sysinfo, opt);
 741
 742                 if (idx >= 0) {
 743                         widget_subset_make_active(screen->widgets.boot_order_f,
 744                                                   idx);
 745                 } else {
 746                         if (opt->boot_type == BOOT_DEVICE_TYPE)
 747                                 pb_log("%s: Unknown autoboot option: %d\n",
 748                                        __func__, opt->type);
 749                         else
 750                                 pb_log("%s: Unknown autoboot UUID: %s\n",
 751                                        __func__, opt->uuid);
 752                 }
 753         }
 754
 755
 756         str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
 757         screen->widgets.timeout_l = widget_new_label(set, 0, 0, _("Timeout:"));
 758         screen->widgets.timeout_f = widget_new_textbox(set, 0, 0, 5, str);
 759         screen->widgets.timeout_help_l = widget_new_label(set, 0, 0,
 760                                         _("seconds"));
 761
 762         widget_textbox_set_fixed_size(screen->widgets.timeout_f);
 763         widget_textbox_set_validator_integer(screen->widgets.timeout_f, 0, 999);
 764
 765         screen->widgets.network_l = widget_new_label(set, 0, 0, _("Network:"));
 766         screen->widgets.network_f = widget_new_select(set, 0, 0, 50);
 767
 768         widget_select_add_option(screen->widgets.network_f,
 769                                         NET_CONF_TYPE_DHCP_ALL,
 770                                         _("DHCP on all active interfaces"),
 771                                         type == NET_CONF_TYPE_DHCP_ALL);
 772         widget_select_add_option(screen->widgets.network_f,
 773                                         NET_CONF_TYPE_DHCP_ONE,
 774                                         _("DHCP on a specific interface"),
 775                                         type == NET_CONF_TYPE_DHCP_ONE);
 776         widget_select_add_option(screen->widgets.network_f,
 777                                         NET_CONF_TYPE_STATIC,
 778                                         _("Static IP configuration"),
 779                                         type == NET_CONF_TYPE_STATIC);
 780
 781         widget_select_on_change(screen->widgets.network_f,
 782                         config_screen_network_change, screen);
 783
 784         screen->widgets.iface_l = widget_new_label(set, 0, 0, _("Device:"));
 785         screen->widgets.iface_f = widget_new_select(set, 0, 0, 50);
 786
 787         for (i = 0; i < sysinfo->n_interfaces; i++) {
 788                 struct interface_info *info = sysinfo->interfaces[i];
 789                 char str[50], mac[20];
 790                 bool is_default;
 791
 792                 is_default = ifcfg && !memcmp(ifcfg->hwaddr, info->hwaddr,
 793                                         sizeof(ifcfg->hwaddr));
 794
 795                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 796                 snprintf(str, sizeof(str), "%s [%s, %s]", info->name, mac,
 797                                 info->link ? _("link up") : _("link down"));
 798
 799                 widget_select_add_option(screen->widgets.iface_f,
 800                                                 i, str, is_default);
 801         }
 802
 803         gw = ip = mask = NULL;
 804         if (ifcfg && ifcfg->method == CONFIG_METHOD_STATIC) {
 805                 char *sep;
 806
 807                 str = talloc_strdup(screen, ifcfg->static_config.address);
 808                 sep = strchr(str, '/');
 809                 ip = str;
 810
 811                 if (sep) {
 812                         *sep = '\0';
 813                         mask = sep + 1;
 814                 }
 815                 gw = ifcfg->static_config.gateway;
 816         }
 817
 818         screen->widgets.ip_addr_l = widget_new_label(set, 0, 0, _("IP/mask:"));
 819         screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, ip);
 820         screen->widgets.ip_mask_l = widget_new_label(set, 0, 0, "/");
 821         screen->widgets.ip_mask_f = widget_new_textbox(set, 0, 0, 3, mask);
 822         screen->widgets.ip_addr_mask_help_l =
 823                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.10 / 24)"));
 824
 825         widget_textbox_set_fixed_size(screen->widgets.ip_addr_f);
 826         widget_textbox_set_fixed_size(screen->widgets.ip_mask_f);
 827         widget_textbox_set_validator_ipv4(screen->widgets.ip_addr_f);
 828         widget_textbox_set_validator_integer(screen->widgets.ip_mask_f, 1, 31);
 829
 830         screen->widgets.gateway_l = widget_new_label(set, 0, 0, _("Gateway:"));
 831         screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, gw);
 832         screen->widgets.gateway_help_l =
 833                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.1)"));
 834
 835         widget_textbox_set_fixed_size(screen->widgets.gateway_f);
 836         widget_textbox_set_validator_ipv4(screen->widgets.gateway_f);
 837
 838         str = talloc_strdup(screen, "");
 839         for (i = 0; i < config->network.n_dns_servers; i++) {
 840                 str = talloc_asprintf_append(str, "%s%s",
 841                                 (i == 0) ? "" : " ",
 842                                 config->network.dns_servers[i]);
 843         }
 844
 845         screen->widgets.dns_l = widget_new_label(set, 0, 0,
 846                                         _("DNS Server(s):"));
 847         screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 32, str);
 848         screen->widgets.dns_help_l =
 849                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.2)"));
 850
 851         widget_textbox_set_validator_ipv4_multi(screen->widgets.dns_f);
 852
 853         screen->widgets.dns_dhcp_help_l = widget_new_label(set, 0, 0,
 854                         _("(if not provided by DHCP server)"));
 855
 856         if (config->safe_mode)
 857                 screen->widgets.safe_mode = widget_new_label(set, 0, 0,
 858                          _("Selecting 'OK' will exit safe mode"));
 859
 860         screen->widgets.ok_b = widget_new_button(set, 0, 0, 6, _("OK"),
 861                         ok_click, screen);
 862         screen->widgets.help_b = widget_new_button(set, 0, 0, 10, _("Help"),
 863                         help_click, screen);
 864         screen->widgets.cancel_b = widget_new_button(set, 0, 0, 10, _("Cancel"),
 865                         cancel_click, screen);
 866 }
 867
 868 static void config_screen_widget_focus(struct nc_widget *widget, void *arg)
 869 {
 870         struct config_screen *screen = arg;
 871         int w_y, s_max;
 872
 873         w_y = widget_y(widget) + widget_focus_y(widget);
 874         s_max = getmaxy(screen->scr.sub_ncw) - 1;
 875
 876         if (w_y < screen->scroll_y)
 877                 screen->scroll_y = w_y;
 878
 879         else if (w_y + screen->scroll_y + 1 > s_max)
 880                 screen->scroll_y = 1 + w_y - s_max;
 881
 882         else
 883                 return;
 884
 885         pad_refresh(screen);
 886 }
 887
 888 static void config_screen_draw(struct config_screen *screen,
 889                 const struct config *config,
 890                 const struct system_info *sysinfo)
 891 {
 892         bool repost = false;
 893         int height;
 894
 895         /* The size of the pad we'll need depends on the number of interfaces.
 896          *
 897          * We use N_FIELDS (which is quite conservative, as some fields share
 898          * a line) as a base, then:
 899          * - add 6 (as the network select & boot device select fields take 3
 900          *   lines each),
 901          * - add n_interfaces for every field in the network select field, and
 902          * - add (n_blockdevs + n_interfaces) for every field in the boot device
 903          *   select field
 904          */
 905         height = N_FIELDS + 6;
 906         if (sysinfo) {
 907                 height += sysinfo->n_interfaces;
 908                 height += (sysinfo->n_blockdevs + sysinfo->n_interfaces);
 909         }
 910         if (!screen->pad || getmaxy(screen->pad) < height) {
 911                 if (screen->pad)
 912                         delwin(screen->pad);
 913                 screen->pad = newpad(height, COLS + 10);
 914         }
 915
 916         if (screen->widgetset) {
 917                 widgetset_unpost(screen->widgetset);
 918                 talloc_free(screen->widgetset);
 919                 repost = true;
 920         }
 921
 922         screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
 923                         screen->pad);
 924         widgetset_set_widget_focus(screen->widgetset,
 925                         config_screen_widget_focus, screen);
 926
 927         if (!config || !sysinfo) {
 928                 config_screen_setup_empty(screen);
 929         } else {
 930                 screen->net_conf_type = find_net_conf_type(config);
 931                 config_screen_setup_widgets(screen, config, sysinfo);
 932                 config_screen_layout_widgets(screen);
 933         }
 934
 935         if (repost)
 936                 widgetset_post(screen->widgetset);
 937 }
 938
 939 void config_screen_update(struct config_screen *screen,
 940                 const struct config *config,
 941                 const struct system_info *sysinfo)
 942 {
 943         config_screen_draw(screen, config, sysinfo);
 944         pad_refresh(screen);
 945 }
 946
 947 static int config_screen_destroy(void *arg)
 948 {
 949         struct config_screen *screen = arg;
 950         if (screen->pad)
 951                 delwin(screen->pad);
 952         return 0;
 953 }
 954
 955 struct config_screen *config_screen_init(struct cui *cui,
 956                 const struct config *config,
 957                 const struct system_info *sysinfo,
 958                 void (*on_exit)(struct cui *))
 959 {
 960         struct config_screen *screen;
 961
 962         screen = talloc_zero(cui, struct config_screen);
 963         talloc_set_destructor(screen, config_screen_destroy);
 964         nc_scr_init(&screen->scr, pb_config_screen_sig, 0,
 965                         cui, config_screen_process_key,
 966                         config_screen_post, config_screen_unpost,
 967                         config_screen_resize);
 968
 969         screen->cui = cui;
 970         screen->on_exit = on_exit;
 971         screen->need_redraw = false;
 972         screen->label_x = 2;
 973         screen->field_x = 17;
 974
 975         screen->show_subset = false;
 976
 977         screen->scr.frame.ltitle = talloc_strdup(screen,
 978                         _("Petitboot System Configuration"));
 979         screen->scr.frame.rtitle = NULL;
 980         screen->scr.frame.help = talloc_strdup(screen,
 981                         _("tab=next, shift+tab=previous, x=exit, h=help"));
 982         nc_scr_frame_draw(&screen->scr);
 983
 984         scrollok(screen->scr.sub_ncw, true);
 985
 986         config_screen_draw(screen, config, sysinfo);
 987
 988         return screen;
 989 }