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        26
  37
  38 extern struct help_text config_help_text;
  39
  40 enum autoboot_type {
  41         AUTOBOOT_ANY,
  42         AUTOBOOT_ONE,
  43         AUTOBOOT_DISABLED,
  44 };
  45
  46 enum net_conf_type {
  47         NET_CONF_TYPE_DHCP_ALL,
  48         NET_CONF_TYPE_DHCP_ONE,
  49         NET_CONF_TYPE_STATIC,
  50 };
  51
  52 struct config_screen {
  53         struct nc_scr           scr;
  54         struct cui              *cui;
  55         struct nc_widgetset     *widgetset;
  56         WINDOW                  *pad;
  57
  58         bool                    exit;
  59         bool                    show_help;
  60         void                    (*on_exit)(struct cui *);
  61
  62         int                     scroll_y;
  63
  64         int                     label_x;
  65         int                     field_x;
  66         int                     network_config_y;
  67
  68         enum net_conf_type      net_conf_type;
  69         enum autoboot_type      autoboot_type;
  70
  71         struct {
  72                 struct nc_widget_select         *autoboot_f;
  73                 struct nc_widget_label          *autoboot_l;
  74                 struct nc_widget_select         *boot_device_f;
  75                 struct nc_widget_textbox        *timeout_f;
  76                 struct nc_widget_label          *timeout_l;
  77                 struct nc_widget_label          *timeout_help_l;
  78
  79                 struct nc_widget_label          *network_l;
  80                 struct nc_widget_select         *network_f;
  81
  82                 struct nc_widget_label          *iface_l;
  83                 struct nc_widget_select         *iface_f;
  84                 struct nc_widget_label          *ip_addr_l;
  85                 struct nc_widget_textbox        *ip_addr_f;
  86                 struct nc_widget_label          *ip_mask_l;
  87                 struct nc_widget_textbox        *ip_mask_f;
  88                 struct nc_widget_label          *ip_addr_mask_help_l;
  89                 struct nc_widget_label          *gateway_l;
  90                 struct nc_widget_textbox        *gateway_f;
  91                 struct nc_widget_label          *gateway_help_l;
  92                 struct nc_widget_label          *dns_l;
  93                 struct nc_widget_textbox        *dns_f;
  94                 struct nc_widget_label          *dns_dhcp_help_l;
  95                 struct nc_widget_label          *dns_help_l;
  96
  97                 struct nc_widget_label          *safe_mode;
  98                 struct nc_widget_button         *ok_b;
  99                 struct nc_widget_button         *help_b;
 100                 struct nc_widget_button         *cancel_b;
 101         } widgets;
 102 };
 103
 104 static struct config_screen *config_screen_from_scr(struct nc_scr *scr)
 105 {
 106         struct config_screen *config_screen;
 107
 108         assert(scr->sig == pb_config_screen_sig);
 109         config_screen = (struct config_screen *)
 110                 ((char *)scr - (size_t)&((struct config_screen *)0)->scr);
 111         assert(config_screen->scr.sig == pb_config_screen_sig);
 112         return config_screen;
 113 }
 114
 115 static void pad_refresh(struct config_screen *screen)
 116 {
 117         int y, x, rows, cols;
 118
 119         getmaxyx(screen->scr.sub_ncw, rows, cols);
 120         getbegyx(screen->scr.sub_ncw, y, x);
 121
 122         prefresh(screen->pad, screen->scroll_y, 0, y, x, rows, cols);
 123 }
 124
 125 static void config_screen_process_key(struct nc_scr *scr, int key)
 126 {
 127         struct config_screen *screen = config_screen_from_scr(scr);
 128         bool handled;
 129
 130         handled = widgetset_process_key(screen->widgetset, key);
 131
 132         if (!handled) {
 133                 switch (key) {
 134                 case 'x':
 135                 case 27: /* esc */
 136                         screen->exit = true;
 137                         break;
 138                 case 'h':
 139                         screen->show_help = true;
 140                         break;
 141                 }
 142         }
 143
 144         if (screen->exit) {
 145                 screen->on_exit(screen->cui);
 146
 147         } else if (screen->show_help) {
 148                 screen->show_help = false;
 149                 cui_show_help(screen->cui, _("System Configuration"),
 150                                 &config_help_text);
 151
 152         } else if (handled) {
 153                 pad_refresh(screen);
 154         }
 155 }
 156
 157 static void config_screen_resize(struct nc_scr *scr)
 158 {
 159         struct config_screen *screen = config_screen_from_scr(scr);
 160         (void)screen;
 161 }
 162
 163 static int config_screen_post(struct nc_scr *scr)
 164 {
 165         struct config_screen *screen = config_screen_from_scr(scr);
 166         widgetset_post(screen->widgetset);
 167         nc_scr_frame_draw(scr);
 168         redrawwin(scr->main_ncw);
 169         wrefresh(screen->scr.main_ncw);
 170         pad_refresh(screen);
 171         return 0;
 172 }
 173
 174 static int config_screen_unpost(struct nc_scr *scr)
 175 {
 176         struct config_screen *screen = config_screen_from_scr(scr);
 177         widgetset_unpost(screen->widgetset);
 178         return 0;
 179 }
 180
 181 struct nc_scr *config_screen_scr(struct config_screen *screen)
 182 {
 183         return &screen->scr;
 184 }
 185
 186 static int screen_process_form(struct config_screen *screen)
 187 {
 188         const struct system_info *sysinfo = screen->cui->sysinfo;
 189         enum net_conf_type net_conf_type;
 190         struct interface_config *iface;
 191         struct config *config;
 192         char *str, *end;
 193         int rc, idx;
 194
 195         config = config_copy(screen, screen->cui->config);
 196
 197         screen->autoboot_type =
 198                 widget_select_get_value(screen->widgets.autoboot_f);
 199
 200         config->autoboot_enabled = screen->autoboot_type != AUTOBOOT_DISABLED;
 201
 202         if (screen->autoboot_type == AUTOBOOT_ONE) {
 203                 char mac[20], *uuid = NULL;
 204
 205                 /* if idx is -1 here, we have an unknown UUID selected.
 206                  * Otherwise, it's a blockdev index (idx <= n_blockdevs) or an
 207                  * interface index.
 208                  */
 209                 idx = widget_select_get_value(screen->widgets.boot_device_f);
 210                 if (idx >= (int)sysinfo->n_blockdevs) {
 211                         struct interface_info *info = sysinfo->
 212                                 interfaces[idx - sysinfo->n_blockdevs];
 213                         mac_str(info->hwaddr, info->hwaddr_size,
 214                                         mac, sizeof(mac));
 215                         uuid = mac;
 216                 } else if (idx != -1) {
 217                         uuid = sysinfo->blockdevs[idx]->uuid;
 218                 }
 219
 220                 if (uuid) {
 221                         talloc_free(config->boot_device);
 222                         config->boot_device = talloc_strdup(config, uuid);
 223                 }
 224         }
 225
 226         str = widget_textbox_get_value(screen->widgets.timeout_f);
 227         if (str) {
 228                 unsigned long x;
 229                 errno = 0;
 230                 x = strtoul(str, &end, 10);
 231                 if (!errno && end != str)
 232                         config->autoboot_timeout_sec = x;
 233         }
 234
 235         net_conf_type = widget_select_get_value(screen->widgets.network_f);
 236
 237         /* if we don't have any network interfaces, prevent per-interface
 238          * configuration */
 239         if (sysinfo->n_interfaces == 0)
 240                 net_conf_type = NET_CONF_TYPE_DHCP_ALL;
 241
 242         if (net_conf_type == NET_CONF_TYPE_DHCP_ALL) {
 243                 config->network.n_interfaces = 0;
 244
 245         } else {
 246                 iface = talloc_zero(config, struct interface_config);
 247                 config->network.n_interfaces = 1;
 248                 config->network.interfaces = talloc_array(config,
 249                                 struct interface_config *, 1);
 250                 config->network.interfaces[0] = iface;
 251
 252                 /* copy hwaddr (from the sysinfo interface data) to
 253                  * the configuration */
 254                 idx = widget_select_get_value(screen->widgets.iface_f);
 255                 memcpy(iface->hwaddr, sysinfo->interfaces[idx]->hwaddr,
 256                                 sizeof(iface->hwaddr));
 257         }
 258
 259         if (net_conf_type == NET_CONF_TYPE_DHCP_ONE) {
 260                 iface->method = CONFIG_METHOD_DHCP;
 261         }
 262
 263         if (net_conf_type == NET_CONF_TYPE_STATIC) {
 264                 char *ip, *mask, *gateway;
 265
 266                 ip = widget_textbox_get_value(screen->widgets.ip_addr_f);
 267                 mask = widget_textbox_get_value(screen->widgets.ip_mask_f);
 268                 gateway = widget_textbox_get_value(screen->widgets.gateway_f);
 269
 270                 if (!ip || !*ip || !mask || !*mask) {
 271                         screen->scr.frame.status =
 272                                 _("No IP / mask values are set");
 273                         nc_scr_frame_draw(&screen->scr);
 274                         talloc_free(config);
 275                         return -1;
 276                 }
 277
 278                 iface->method = CONFIG_METHOD_STATIC;
 279                 iface->static_config.address = talloc_asprintf(iface, "%s/%s",
 280                                 ip, mask);
 281                 iface->static_config.gateway = talloc_strdup(iface, gateway);
 282         }
 283
 284         str = widget_textbox_get_value(screen->widgets.dns_f);
 285         talloc_free(config->network.dns_servers);
 286         config->network.dns_servers = NULL;
 287         config->network.n_dns_servers = 0;
 288
 289         if (str && strlen(str)) {
 290                 char *dns, *tmp;
 291                 int i;
 292
 293                 for (;;) {
 294                         dns = strtok_r(str, " \t", &tmp);
 295
 296                         if (!dns)
 297                                 break;
 298
 299                         i = config->network.n_dns_servers++;
 300                         config->network.dns_servers = talloc_realloc(config,
 301                                         config->network.dns_servers,
 302                                         const char *,
 303                                         config->network.n_dns_servers);
 304                         config->network.dns_servers[i] =
 305                                 talloc_strdup(config, dns);
 306
 307                         str = NULL;
 308                 }
 309         }
 310
 311         config->safe_mode = false;
 312         rc = cui_send_config(screen->cui, config);
 313         talloc_free(config);
 314
 315         if (rc)
 316                 pb_log("cui_send_config failed!\n");
 317         else
 318                 pb_debug("config sent!\n");
 319
 320         return 0;
 321 }
 322
 323 static void ok_click(void *arg)
 324 {
 325         struct config_screen *screen = arg;
 326         if (screen_process_form(screen))
 327                 /* errors are written to the status line, so we'll need
 328                  * to refresh */
 329                 wrefresh(screen->scr.main_ncw);
 330         else
 331                 screen->exit = true;
 332 }
 333
 334 static void help_click(void *arg)
 335 {
 336         struct config_screen *screen = arg;
 337         screen->show_help = true;
 338 }
 339
 340 static void cancel_click(void *arg)
 341 {
 342         struct config_screen *screen = arg;
 343         screen->exit = true;
 344 }
 345
 346 static int layout_pair(struct config_screen *screen, int y,
 347                 struct nc_widget_label *label,
 348                 struct nc_widget *field)
 349 {
 350         struct nc_widget *label_w = widget_label_base(label);
 351         widget_move(label_w, y, screen->label_x);
 352         widget_move(field, y, screen->field_x);
 353         return max(widget_height(label_w), widget_height(field));
 354 }
 355
 356 static void config_screen_layout_widgets(struct config_screen *screen)
 357 {
 358         struct nc_widget *wl, *wf, *wh;
 359         int y, x, help_x;
 360         bool show;
 361
 362         y = 1;
 363         help_x = screen->field_x + 2 +
 364                 widget_width(widget_textbox_base(screen->widgets.dns_f));
 365
 366         y += layout_pair(screen, y, screen->widgets.autoboot_l,
 367                         widget_select_base(screen->widgets.autoboot_f));
 368
 369         wf = widget_select_base(screen->widgets.boot_device_f);
 370         if (screen->autoboot_type == AUTOBOOT_ONE) {
 371                 widget_set_visible(wf, true);
 372                 widget_move(wf, y, screen->field_x + 3);
 373                 y += widget_height(wf);
 374         } else {
 375                 widget_set_visible(wf, false);
 376         }
 377
 378         y += 1;
 379
 380         wf = widget_textbox_base(screen->widgets.timeout_f);
 381         wl = widget_label_base(screen->widgets.timeout_l);
 382         wh = widget_label_base(screen->widgets.timeout_help_l);
 383         if (screen->autoboot_type != AUTOBOOT_DISABLED) {
 384                 widget_set_visible(wl, true);
 385                 widget_set_visible(wf, true);
 386                 widget_set_visible(wh, true);
 387                 widget_move(wl, y, screen->label_x);
 388                 widget_move(wf, y, screen->field_x);
 389                 widget_move(wh, y, screen->field_x + widget_width(wf) + 1);
 390                 y += 2;
 391         } else {
 392                 widget_set_visible(wl, false);
 393                 widget_set_visible(wf, false);
 394                 widget_set_visible(wh, false);
 395         }
 396
 397         y += layout_pair(screen, y, screen->widgets.network_l,
 398                         widget_select_base(screen->widgets.network_f));
 399
 400         y += 1;
 401
 402         /* conditionally show iface select */
 403         wl = widget_label_base(screen->widgets.iface_l);
 404         wf = widget_select_base(screen->widgets.iface_f);
 405
 406         show = screen->net_conf_type == NET_CONF_TYPE_DHCP_ONE ||
 407                 screen->net_conf_type == NET_CONF_TYPE_STATIC;
 408
 409         widget_set_visible(wl, show);
 410         widget_set_visible(wf, show);
 411
 412         if (show)
 413                 y += layout_pair(screen, y, screen->widgets.iface_l, wf) + 1;
 414
 415         /* conditionally show static IP params */
 416         show = screen->net_conf_type == NET_CONF_TYPE_STATIC;
 417
 418         wl = widget_label_base(screen->widgets.ip_addr_l);
 419         wf = widget_textbox_base(screen->widgets.ip_addr_f);
 420         widget_set_visible(wl, show);
 421         widget_set_visible(wf, show);
 422         x = screen->field_x + widget_width(wf) + 1;
 423
 424         if (show)
 425                 layout_pair(screen, y, screen->widgets.ip_addr_l, wf);
 426
 427         wl = widget_label_base(screen->widgets.ip_mask_l);
 428         wf = widget_textbox_base(screen->widgets.ip_mask_f);
 429         widget_set_visible(wl, show);
 430         widget_set_visible(wf, show);
 431
 432         if (show) {
 433                 widget_move(wl, y, x);
 434                 widget_move(wf, y, x + 2);
 435         }
 436
 437         /* help for IP/mask */
 438         wh = widget_label_base(screen->widgets.ip_addr_mask_help_l);
 439         widget_set_visible(wh, show);
 440         if (show) {
 441                 widget_move(wh, y, help_x);
 442                 y++;
 443         }
 444
 445         wl = widget_label_base(screen->widgets.gateway_l);
 446         wf = widget_textbox_base(screen->widgets.gateway_f);
 447         wh = widget_label_base(screen->widgets.gateway_help_l);
 448         widget_set_visible(wl, show);
 449         widget_set_visible(wf, show);
 450         widget_set_visible(wh, show);
 451
 452         if (show) {
 453                 layout_pair(screen, y, screen->widgets.gateway_l, wf);
 454                 widget_move(wh, y, help_x);
 455                 y++;
 456         }
 457
 458         wh = widget_label_base(screen->widgets.dns_help_l);
 459         layout_pair(screen, y, screen->widgets.dns_l,
 460                         widget_textbox_base(screen->widgets.dns_f));
 461         widget_move(wh, y, help_x);
 462         y++;
 463
 464         /* we show the DNS/DHCP help if we're configuring DHCP */
 465         show = screen->net_conf_type != NET_CONF_TYPE_STATIC;
 466         wl = widget_label_base(screen->widgets.dns_dhcp_help_l);
 467         widget_set_visible(wl, show);
 468         if (show) {
 469                 widget_move(wl, y, screen->field_x);
 470                 y += 1;
 471         }
 472
 473         y += 1;
 474
 475         show = screen->cui->config->safe_mode;
 476         if (show) {
 477                 widget_move(widget_label_base(screen->widgets.safe_mode),
 478                         y, screen->field_x);
 479                 y += 1;
 480         }
 481
 482         widget_move(widget_button_base(screen->widgets.ok_b),
 483                         y, screen->field_x);
 484         widget_move(widget_button_base(screen->widgets.help_b),
 485                         y, screen->field_x + 10);
 486         widget_move(widget_button_base(screen->widgets.cancel_b),
 487                         y, screen->field_x + 20);
 488 }
 489
 490 static void config_screen_network_change(void *arg, int value)
 491 {
 492         struct config_screen *screen = arg;
 493         screen->net_conf_type = value;
 494         widgetset_unpost(screen->widgetset);
 495         config_screen_layout_widgets(screen);
 496         widgetset_post(screen->widgetset);
 497 }
 498
 499 static void config_screen_autoboot_change(void *arg, int value)
 500 {
 501         struct config_screen *screen = arg;
 502         screen->autoboot_type = value;
 503         widgetset_unpost(screen->widgetset);
 504         config_screen_layout_widgets(screen);
 505         widgetset_post(screen->widgetset);
 506 }
 507
 508 static struct interface_config *first_active_interface(
 509                 const struct config *config)
 510 {
 511         unsigned int i;
 512
 513         for (i = 0; i < config->network.n_interfaces; i++) {
 514                 if (config->network.interfaces[i]->ignore)
 515                         continue;
 516                 return config->network.interfaces[i];
 517         }
 518         return NULL;
 519 }
 520
 521 static enum net_conf_type find_net_conf_type(const struct config *config)
 522 {
 523         struct interface_config *ifcfg;
 524
 525         ifcfg = first_active_interface(config);
 526
 527         if (!ifcfg)
 528                 return NET_CONF_TYPE_DHCP_ALL;
 529
 530         else if (ifcfg->method == CONFIG_METHOD_DHCP)
 531                 return NET_CONF_TYPE_DHCP_ONE;
 532
 533         else if (ifcfg->method == CONFIG_METHOD_STATIC)
 534                 return NET_CONF_TYPE_STATIC;
 535
 536         assert(0);
 537         return NET_CONF_TYPE_DHCP_ALL;
 538 }
 539
 540 static void config_screen_setup_empty(struct config_screen *screen)
 541 {
 542         widget_new_label(screen->widgetset, 2, screen->field_x,
 543                         _("Waiting for configuration data..."));
 544         screen->widgets.cancel_b = widget_new_button(screen->widgetset,
 545                         4, screen->field_x, 6, _("Cancel"),
 546                         cancel_click, screen);
 547 }
 548
 549
 550 static void config_screen_setup_widgets(struct config_screen *screen,
 551                 const struct config *config,
 552                 const struct system_info *sysinfo)
 553 {
 554         struct nc_widgetset *set = screen->widgetset;
 555         struct interface_config *ifcfg;
 556         char *str, *ip, *mask, *gw;
 557         enum net_conf_type type;
 558         unsigned int i;
 559         bool found;
 560
 561         build_assert(sizeof(screen->widgets) / sizeof(struct widget *)
 562                         == N_FIELDS);
 563
 564         type = screen->net_conf_type;
 565         ifcfg = first_active_interface(config);
 566
 567         screen->widgets.autoboot_l = widget_new_label(set, 0, 0,
 568                                         _("Autoboot:"));
 569         screen->widgets.autoboot_f = widget_new_select(set, 0, 0, 55);
 570
 571         widget_select_on_change(screen->widgets.autoboot_f,
 572                         config_screen_autoboot_change, screen);
 573
 574         screen->widgets.boot_device_f = widget_new_select(set, 0, 0, 55);
 575
 576         widget_select_add_option(screen->widgets.autoboot_f,
 577                                         AUTOBOOT_DISABLED,
 578                                         _("Don't autoboot"),
 579                                         screen->autoboot_type ==
 580                                                 AUTOBOOT_DISABLED);
 581         widget_select_add_option(screen->widgets.autoboot_f,
 582                                         AUTOBOOT_ANY,
 583                                         _("Autoboot from any "
 584                                                 "disk/network device"),
 585                                         screen->autoboot_type ==
 586                                                 AUTOBOOT_ANY);
 587         widget_select_add_option(screen->widgets.autoboot_f,
 588                                         AUTOBOOT_ONE,
 589                                         _("Only autoboot from a specific "
 590                                                 "disk/network device"),
 591                                         screen->autoboot_type ==
 592                                                 AUTOBOOT_ONE);
 593
 594         found = false;
 595
 596         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 597                 struct blockdev_info *bd = sysinfo->blockdevs[i];
 598                 bool selected;
 599                 char *label;
 600
 601                 selected = config->boot_device &&
 602                                 !strcmp(config->boot_device, bd->uuid);
 603                 if (selected)
 604                         found = true;
 605
 606                 label = talloc_asprintf(screen, _("disk: %s [uuid: %s]"),
 607                                 bd->name, bd->uuid);
 608
 609                 widget_select_add_option(screen->widgets.boot_device_f, i,
 610                                         label, selected);
 611         }
 612
 613         for (i = 0; i < sysinfo->n_interfaces; i++) {
 614                 struct interface_info *info = sysinfo->interfaces[i];
 615                 char *label, mac[20];
 616                 bool selected;
 617
 618                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 619                 selected = config->boot_device &&
 620                                 !strcmp(config->boot_device, mac);
 621                 if (selected)
 622                         found = true;
 623
 624                 label = talloc_asprintf(screen, _("net:  %s [mac: %s]"),
 625                                 info->name, mac);
 626
 627                 widget_select_add_option(screen->widgets.boot_device_f,
 628                                                 i + sysinfo->n_blockdevs,
 629                                                 label, selected);
 630         }
 631
 632         if (screen->autoboot_type == AUTOBOOT_ONE && !found) {
 633                 char *label;
 634
 635                 label = talloc_asprintf(screen, _("Unknown UUID: %s"),
 636                                 config->boot_device);
 637
 638                 widget_select_add_option(screen->widgets.boot_device_f, -1,
 639                                                 label, true);
 640         }
 641
 642         str = talloc_asprintf(screen, "%d", config->autoboot_timeout_sec);
 643         screen->widgets.timeout_l = widget_new_label(set, 0, 0, _("Timeout:"));
 644         screen->widgets.timeout_f = widget_new_textbox(set, 0, 0, 5, str);
 645         screen->widgets.timeout_help_l = widget_new_label(set, 0, 0,
 646                                         _("seconds"));
 647
 648         widget_textbox_set_fixed_size(screen->widgets.timeout_f);
 649         widget_textbox_set_validator_integer(screen->widgets.timeout_f, 0, 999);
 650
 651         screen->widgets.network_l = widget_new_label(set, 0, 0, _("Network:"));
 652         screen->widgets.network_f = widget_new_select(set, 0, 0, 50);
 653
 654         widget_select_add_option(screen->widgets.network_f,
 655                                         NET_CONF_TYPE_DHCP_ALL,
 656                                         _("DHCP on all active interfaces"),
 657                                         type == NET_CONF_TYPE_DHCP_ALL);
 658         widget_select_add_option(screen->widgets.network_f,
 659                                         NET_CONF_TYPE_DHCP_ONE,
 660                                         _("DHCP on a specific interface"),
 661                                         type == NET_CONF_TYPE_DHCP_ONE);
 662         widget_select_add_option(screen->widgets.network_f,
 663                                         NET_CONF_TYPE_STATIC,
 664                                         _("Static IP configuration"),
 665                                         type == NET_CONF_TYPE_STATIC);
 666
 667         widget_select_on_change(screen->widgets.network_f,
 668                         config_screen_network_change, screen);
 669
 670         screen->widgets.iface_l = widget_new_label(set, 0, 0, _("Device:"));
 671         screen->widgets.iface_f = widget_new_select(set, 0, 0, 50);
 672
 673         for (i = 0; i < sysinfo->n_interfaces; i++) {
 674                 struct interface_info *info = sysinfo->interfaces[i];
 675                 char str[50], mac[20];
 676                 bool is_default;
 677
 678                 is_default = ifcfg && !memcmp(ifcfg->hwaddr, info->hwaddr,
 679                                         sizeof(ifcfg->hwaddr));
 680
 681                 mac_str(info->hwaddr, info->hwaddr_size, mac, sizeof(mac));
 682                 snprintf(str, sizeof(str), "%s [%s, %s]", info->name, mac,
 683                                 info->link ? _("link up") : _("link down"));
 684
 685                 widget_select_add_option(screen->widgets.iface_f,
 686                                                 i, str, is_default);
 687         }
 688
 689         gw = ip = mask = NULL;
 690         if (ifcfg && ifcfg->method == CONFIG_METHOD_STATIC) {
 691                 char *sep;
 692
 693                 str = talloc_strdup(screen, ifcfg->static_config.address);
 694                 sep = strchr(str, '/');
 695                 ip = str;
 696
 697                 if (sep) {
 698                         *sep = '\0';
 699                         mask = sep + 1;
 700                 }
 701                 gw = ifcfg->static_config.gateway;
 702         }
 703
 704         screen->widgets.ip_addr_l = widget_new_label(set, 0, 0, _("IP/mask:"));
 705         screen->widgets.ip_addr_f = widget_new_textbox(set, 0, 0, 16, ip);
 706         screen->widgets.ip_mask_l = widget_new_label(set, 0, 0, "/");
 707         screen->widgets.ip_mask_f = widget_new_textbox(set, 0, 0, 3, mask);
 708         screen->widgets.ip_addr_mask_help_l =
 709                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.10 / 24)"));
 710
 711         widget_textbox_set_fixed_size(screen->widgets.ip_addr_f);
 712         widget_textbox_set_fixed_size(screen->widgets.ip_mask_f);
 713         widget_textbox_set_validator_ipv4(screen->widgets.ip_addr_f);
 714         widget_textbox_set_validator_integer(screen->widgets.ip_mask_f, 1, 31);
 715
 716         screen->widgets.gateway_l = widget_new_label(set, 0, 0, _("Gateway:"));
 717         screen->widgets.gateway_f = widget_new_textbox(set, 0, 0, 16, gw);
 718         screen->widgets.gateway_help_l =
 719                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.1)"));
 720
 721         widget_textbox_set_fixed_size(screen->widgets.gateway_f);
 722         widget_textbox_set_validator_ipv4(screen->widgets.gateway_f);
 723
 724         str = talloc_strdup(screen, "");
 725         for (i = 0; i < config->network.n_dns_servers; i++) {
 726                 str = talloc_asprintf_append(str, "%s%s",
 727                                 (i == 0) ? "" : " ",
 728                                 config->network.dns_servers[i]);
 729         }
 730
 731         screen->widgets.dns_l = widget_new_label(set, 0, 0,
 732                                         _("DNS Server(s):"));
 733         screen->widgets.dns_f = widget_new_textbox(set, 0, 0, 32, str);
 734         screen->widgets.dns_help_l =
 735                 widget_new_label(set, 0, 0, _("(eg. 192.168.0.2)"));
 736
 737         widget_textbox_set_validator_ipv4_multi(screen->widgets.dns_f);
 738
 739         screen->widgets.dns_dhcp_help_l = widget_new_label(set, 0, 0,
 740                         _("(if not provided by DHCP server)"));
 741
 742         if (config->safe_mode)
 743                 screen->widgets.safe_mode = widget_new_label(set, 0, 0,
 744                          _("Selecting 'OK' will exit safe mode"));
 745
 746         screen->widgets.ok_b = widget_new_button(set, 0, 0, 6, _("OK"),
 747                         ok_click, screen);
 748         screen->widgets.help_b = widget_new_button(set, 0, 0, 6, _("Help"),
 749                         help_click, screen);
 750         screen->widgets.cancel_b = widget_new_button(set, 0, 0, 6, _("Cancel"),
 751                         cancel_click, screen);
 752 }
 753
 754 static void config_screen_widget_focus(struct nc_widget *widget, void *arg)
 755 {
 756         struct config_screen *screen = arg;
 757         int w_y, s_max;
 758
 759         w_y = widget_y(widget) + widget_focus_y(widget);
 760         s_max = getmaxy(screen->scr.sub_ncw) - 1;
 761
 762         if (w_y < screen->scroll_y)
 763                 screen->scroll_y = w_y;
 764
 765         else if (w_y + screen->scroll_y + 1 > s_max)
 766                 screen->scroll_y = 1 + w_y - s_max;
 767
 768         else
 769                 return;
 770
 771         pad_refresh(screen);
 772 }
 773
 774 static void config_screen_draw(struct config_screen *screen,
 775                 const struct config *config,
 776                 const struct system_info *sysinfo)
 777 {
 778         bool repost = false;
 779         int height;
 780
 781         /* The size of the pad we'll need depends on the number of interfaces.
 782          *
 783          * We use N_FIELDS (which is quite conservative, as some fields share
 784          * a line) as a base, then add 3 (as the network select field is
 785          * takes 3 lines), and n_interfaces (as the network interface field
 786          * has n_interfaces lines).
 787          */
 788         height = N_FIELDS + 3;
 789         if (sysinfo)
 790                 height += sysinfo->n_interfaces;
 791         if (!screen->pad || getmaxy(screen->pad) < height) {
 792                 if (screen->pad)
 793                         delwin(screen->pad);
 794                 screen->pad = newpad(height, COLS);
 795         }
 796
 797         if (screen->widgetset) {
 798                 widgetset_unpost(screen->widgetset);
 799                 talloc_free(screen->widgetset);
 800                 repost = true;
 801         }
 802
 803         screen->widgetset = widgetset_create(screen, screen->scr.main_ncw,
 804                         screen->pad);
 805         widgetset_set_widget_focus(screen->widgetset,
 806                         config_screen_widget_focus, screen);
 807
 808         if (!config || !sysinfo) {
 809                 config_screen_setup_empty(screen);
 810         } else {
 811                 screen->net_conf_type = find_net_conf_type(config);
 812                 if (!config->autoboot_enabled)
 813                         screen->autoboot_type = AUTOBOOT_DISABLED;
 814                 else
 815                         screen->autoboot_type = config->boot_device ?
 816                                         AUTOBOOT_ONE : AUTOBOOT_ANY;
 817
 818                 config_screen_setup_widgets(screen, config, sysinfo);
 819                 config_screen_layout_widgets(screen);
 820         }
 821
 822         if (repost)
 823                 widgetset_post(screen->widgetset);
 824 }
 825
 826 void config_screen_update(struct config_screen *screen,
 827                 const struct config *config,
 828                 const struct system_info *sysinfo)
 829 {
 830         config_screen_draw(screen, config, sysinfo);
 831         pad_refresh(screen);
 832 }
 833
 834 static int config_screen_destroy(void *arg)
 835 {
 836         struct config_screen *screen = arg;
 837         if (screen->pad)
 838                 delwin(screen->pad);
 839         return 0;
 840 }
 841
 842 struct config_screen *config_screen_init(struct cui *cui,
 843                 const struct config *config,
 844                 const struct system_info *sysinfo,
 845                 void (*on_exit)(struct cui *))
 846 {
 847         struct config_screen *screen;
 848
 849         screen = talloc_zero(cui, struct config_screen);
 850         talloc_set_destructor(screen, config_screen_destroy);
 851         nc_scr_init(&screen->scr, pb_config_screen_sig, 0,
 852                         cui, config_screen_process_key,
 853                         config_screen_post, config_screen_unpost,
 854                         config_screen_resize);
 855
 856         screen->cui = cui;
 857         screen->on_exit = on_exit;
 858         screen->label_x = 2;
 859         screen->field_x = 17;
 860
 861         screen->scr.frame.ltitle = talloc_strdup(screen,
 862                         _("Petitboot System Configuration"));
 863         screen->scr.frame.rtitle = NULL;
 864         screen->scr.frame.help = talloc_strdup(screen,
 865                         _("tab=next, shift+tab=previous, x=exit, h=help"));
 866         nc_scr_frame_draw(&screen->scr);
 867
 868         scrollok(screen->scr.sub_ncw, true);
 869
 870         config_screen_draw(screen, config, sysinfo);
 871
 872         return screen;
 873 }