src/interfaces/hostnamed/hostnamed.c

   1 /*
   2  * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc>
   3  *
   4  * Permission to use, copy, modify, and distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <unistd.h>
  18 #include <limits.h>
  19 #include <signal.h>
  20 #include <string.h>
  21
  22 #include <sys/param.h>
  23 #include <sys/sysctl.h>
  24 #include <sys/sensors.h>
  25 #include <sys/ioctl.h>
  26 #include <sys/utsname.h>
  27
  28 #include <machine/apmvar.h>
  29
  30 #include <glib/gprintf.h>
  31 #include <glib-unix.h>
  32 #include <polkit/polkit.h>
  33
  34 #include "hostnamed-gen.h"
  35 #include "hostnamed.h"
  36
  37 /* format: {
  38  *           (1) string to be matched against runtime machine's sysctl output.
  39  *               can be either the exact string or a substring contained
  40  *               within sysctl strings. no "guesses" here, a match should
  41  *               reliably indicate the chassis/icon.
  42  *
  43  *           (2) string describing chassis type divulged by (1).
  44  *               must be one of "desktop", "laptop", "server",
  45  *               "tablet", "handset", "vm", "container" or NULL
  46  *               if only icon string can be ascertained. "vm" refers
  47  *               to operating systems running on baremetal hypervisors
  48  *               (hardware virtualization, like XEN) while "container"
  49  *               refers to OSs running on shared hypervisors like
  50  *               virtualbox or VMware. consider the distinction carefully
  51  *               as common virtualization software like KVM may share
  52  *               characteristics of both "vm" and "container" types.
  53  *
  54  *           (3) string specifying icon to use. follows XDG icon spec.
  55  *               see http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
  56  *               for allowed strings.
  57  *
  58  *           (4) chassis precedence bit. TRUE if (2) is defined and
  59  *               we're certain it is the proper string. FALSE in the
  60  *               circumstance (2) may be the correct string, unless
  61  *               a match with this bit set to TRUE overrides it.
  62  *               if (2) is NULL, this bit is inconsequential.
  63  *
  64  *           (5) icon precedence bit. see previous definition.
  65  *         }                                               */
  66 struct SYSCTL_LOOKUP_TABLE {
  67     gchar    *match_string;
  68     gchar    *chassis;
  69     gchar    *icon;
  70     gboolean chassis_precedence;
  71     gboolean icon_precedence;
  72 };
  73
  74 GPtrArray *hostnamed_freeable;
  75 Hostname1 *hostnamed_interf;
  76
  77 GMainLoop *hostnamed_loop;
  78
  79 guint bus_descriptor;
  80 gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */
  81
  82 gchar *HOSTNAME, *STATIC_HOSTNAME, *PRETTY_HOSTNAME;
  83 gchar *CHASSIS, *ICON;
  84 gchar *KERN_NAME, *KERN_RELEASE, *KERN_VERS, *OS_CPENAME;
  85
  86 /* TODO no specific vm or laptop icon in gnome
  87  * NOTE paravirtualization on xen is only available for linuxes right now
  88  * dmesg on linux systems reveals xen and virtualization method (HVM or PVM)
  89  * but we will worry about those later */
  90
  91 /* add any sysctl strings that suggest virtualization here */
  92 const struct SYSCTL_LOOKUP_TABLE chassis_indicator_table[] =
  93 {
  94     { "QEMU Virtual CPU",        "vm",        NULL,              FALSE, FALSE }, /* could be QEMU running in userspace or as part of KVM */
  95     { "KVM",                     "vm",        "drive-multidisk", FALSE, FALSE },
  96     { "SmartDC HVM",             "vm",        "drive-multidisk", TRUE,  TRUE  }, /* illumos-joyent kvm */
  97     { "VirtualBox",              "vm",        "drive-multidisk", TRUE,  TRUE  },
  98     { "VMware, Inc.",            "vm",        "drive-multidisk", TRUE,  TRUE  },
  99     { "VMware Virtual Platform", "vm",        "drive-multidisk", TRUE,  TRUE  },
 100     { "Parallels",               "vm",        "drive-multidisk", TRUE,  TRUE  }, /* need verification */
 101     { "Xen",                     "vm",        "drive-multidisk", FALSE, FALSE }
 102 }; /* TODO: chroots, etc. are the actual "containers", add them */
 103
 104 /* archs to check against when determining if machine is server */
 105 const gchar *server_archs[] = {
 106     "hppa",
 107     "sparc",
 108     "sparc64"
 109 };
 110
 111 /* --- begin method/property/dbus signal code --- */
 112
 113 /* TODO the extra boolean passed to these funcs is for policykit auth */
 114 /* TODO complete call with error, message, etc */
 115 static gboolean
 116 on_handle_set_hostname(Hostname1 *hn1_passed_interf,
 117                        GDBusMethodInvocation *invoc,
 118                        const gchar *greet,
 119                        gpointer data) {
 120     GVariant *params;
 121     gchar *proposed_hostname, *valid_hostname_buf;
 122     gboolean policykit_auth, ret;
 123     size_t check_length;
 124
 125     proposed_hostname = NULL;
 126     ret = FALSE;
 127
 128     params = g_dbus_method_invocation_get_parameters(invoc);
 129     g_variant_get(params, "(sb)", &proposed_hostname, &policykit_auth);
 130
 131     if(proposed_hostname && (valid_hostname_buf = g_hostname_to_ascii(proposed_hostname))) {
 132
 133         check_length = strnlen(proposed_hostname, MAXHOSTNAMELEN + 1);
 134
 135         if(check_length > MAXHOSTNAMELEN)
 136             g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Hostname string exceeded maximum length.");
 137
 138         else if(sethostname(proposed_hostname, check_length))
 139             g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to change hostname.");
 140
 141         else {
 142             HOSTNAME = proposed_hostname;
 143             hostname1_set_hostname(hn1_passed_interf, HOSTNAME);
 144             ret = TRUE;
 145             hostname1_complete_set_hostname(hn1_passed_interf, invoc);
 146         }
 147     }
 148
 149     if(proposed_hostname)
 150         g_free(proposed_hostname);
 151     if(valid_hostname_buf)
 152         g_free(valid_hostname_buf);
 153
 154     return ret;
 155 }
 156
 157 static gboolean
 158 on_handle_set_static_hostname(Hostname1 *hn1_passed_interf,
 159                               GDBusMethodInvocation *invoc,
 160                               const gchar *greet,
 161                               gpointer data) {
 162     return FALSE;
 163 }
 164
 165 static gboolean
 166 on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf,
 167                               GDBusMethodInvocation *invoc,
 168                               const gchar *greet,
 169                               gpointer data) {
 170     return FALSE;
 171 }
 172
 173 static gboolean
 174 on_handle_set_chassis(Hostname1 *hn1_passed_interf,
 175                       GDBusMethodInvocation *invoc,
 176                       const gchar *greet,
 177                       gpointer data) {
 178     return FALSE;
 179 }
 180
 181 static gboolean
 182 on_handle_set_icon_name(Hostname1 *hn1_passed_interf,
 183                         GDBusMethodInvocation *invoc,
 184                         const gchar *greet,
 185                         gpointer data) {
 186     return FALSE;
 187 }
 188
 189 /* note: all hostnamed/hostname1's properties are read-only,
 190  * and do not need set_ functions, gdbus-codegen realized
 191  * this from the XML and handled the to-be error of trying
 192  * to set a read-only property's value
 193  */
 194
 195 const gchar *
 196 our_get_hostname() {
 197
 198     gchar *hostname_buf;
 199     hostname_buf = (gchar *)g_malloc0(MAXHOSTNAMELEN);
 200
 201     if(gethostname(hostname_buf, MAXHOSTNAMELEN))
 202         return "localhost.home.network"; /* TODO bomb out here probably */
 203
 204     else if(!g_strcmp0(HOSTNAME, hostname_buf)) {
 205
 206         g_free(hostname_buf);
 207         return HOSTNAME;
 208     }
 209
 210     g_ptr_array_add(hostnamed_freeable, hostname_buf);
 211     HOSTNAME = hostname_buf;
 212     hostname1_set_hostname(hostnamed_interf, HOSTNAME);
 213
 214     return HOSTNAME;
 215 }
 216
 217 const gchar *
 218 our_get_static_hostname() {
 219
 220     if(STATIC_HOSTNAME && g_strcmp0(STATIC_HOSTNAME, ""))
 221         return STATIC_HOSTNAME;
 222     else if(HOSTNAME)
 223         return HOSTNAME;
 224
 225     return "localhost.home.network";
 226 }
 227
 228 const gchar *
 229 our_get_pretty_hostname() {
 230
 231     if(PRETTY_HOSTNAME)
 232         return PRETTY_HOSTNAME;
 233
 234     return "";
 235 }
 236
 237 const gchar *
 238 our_get_chassis() {
 239
 240    if(CHASSIS)
 241         return CHASSIS;
 242
 243     return "desktop"; /* this leads to the most generic beheivor in the unlikely case its returned */
 244 }
 245
 246 const gchar *
 247 our_get_icon_name() {
 248
 249     if(ICON)
 250         return ICON;
 251
 252     return "";
 253 }
 254
 255 const gchar *
 256 our_get_kernel_name() {
 257
 258     if(KERN_NAME)
 259         return KERN_NAME;
 260
 261     return "";
 262 }
 263
 264 const gchar *
 265 our_get_kernel_version() {
 266
 267     if(KERN_VERS)
 268         return KERN_VERS;
 269
 270     return "";
 271 }
 272
 273 const gchar *
 274 our_get_kernel_release() {
 275
 276     if(KERN_RELEASE)
 277         return KERN_RELEASE;
 278
 279     return "";
 280 }
 281
 282 const gchar *
 283 our_get_os_cpename() {
 284
 285     return "ONEDAY";
 286 }
 287
 288 const gchar *
 289 our_get_os_pretty_name() {
 290
 291     return "OpenBSD";
 292 }
 293
 294 /* --- end method/property/dbus signal code, begin bus/name handlers --- */
 295
 296 static void hostnamed_on_bus_acquired(GDBusConnection *conn,
 297                                       const gchar *name,
 298                                       gpointer user_data) {
 299
 300     g_printf("got bus/name, exporting %s's interface...\n", name);
 301
 302     hostnamed_interf = hostname1_skeleton_new();
 303
 304     /* attach function pointers to generated struct's method handlers */
 305     g_signal_connect(hostnamed_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);
 306     g_signal_connect(hostnamed_interf, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname), NULL);
 307     g_signal_connect(hostnamed_interf, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname), NULL);
 308     g_signal_connect(hostnamed_interf, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis), NULL);
 309     g_signal_connect(hostnamed_interf, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name), NULL);
 310
 311     /* set our properties before export */
 312     hostname1_set_hostname(hostnamed_interf, our_get_hostname());
 313     hostname1_set_static_hostname(hostnamed_interf, our_get_static_hostname());
 314     hostname1_set_pretty_hostname(hostnamed_interf, our_get_pretty_hostname());
 315     hostname1_set_chassis(hostnamed_interf, our_get_chassis());
 316     hostname1_set_icon_name(hostnamed_interf, our_get_icon_name());
 317     hostname1_set_kernel_name(hostnamed_interf, our_get_kernel_name());
 318     hostname1_set_kernel_version(hostnamed_interf, our_get_kernel_version());
 319     hostname1_set_kernel_release(hostnamed_interf, our_get_kernel_release());
 320     hostname1_set_operating_system_cpename(hostnamed_interf, our_get_os_cpename());
 321     hostname1_set_operating_system_pretty_name(hostnamed_interf, our_get_os_pretty_name());
 322
 323     if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf),
 324                                          conn,
 325                                          "/org/freedesktop/hostname1",
 326                                          NULL)) {
 327
 328         g_printf("failed to export %s's interface!\n", name); /* unusual edge case, TODO check errno */
 329         hostnamed_mem_clean();
 330
 331     } else {
 332
 333         dbus_interface_exported = TRUE;
 334         g_printf("exported %s's interface on the system bus...\n", name);
 335     }
 336 }
 337
 338 static void hostnamed_on_name_acquired(GDBusConnection *conn,
 339                                        const gchar *name,
 340                                        gpointer user_data) {
 341
 342     g_printf("success!\n");
 343 }
 344
 345 static void hostnamed_on_name_lost(GDBusConnection *conn,
 346                                    const gchar *name,
 347                                    gpointer user_data) {
 348
 349     if(!conn) {
 350
 351         g_printf("failed to connect to the system bus while trying to acquire name '%s': either dbus-daemon isn't running or we don't have permission to push names and/or their interfaces to it.\n", name);
 352         hostnamed_mem_clean();
 353     }
 354
 355     g_printf("lost name %s, exiting...\n", name);
 356
 357     hostnamed_mem_clean();
 358 }
 359
 360 /* --- end bus/name handlers, begin misc unix functions --- */
 361
 362 /* safe call to clean and then exit
 363  * this stops our GMainLoop safely before letting main() return */
 364 void hostnamed_mem_clean() {
 365
 366     g_printf("exiting...\n");
 367
 368     if(dbus_interface_exported)
 369         g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf));
 370
 371     if(g_main_loop_is_running(hostnamed_loop))
 372         g_main_loop_quit(hostnamed_loop);
 373
 374 }
 375
 376 /* wrapper for glib's unix signal handling; called only once if terminatating signal is raised against us */
 377 gboolean unix_sig_terminate_handler(gpointer data) {
 378
 379     g_printf("caught SIGINT/HUP/TERM, exiting\n");
 380
 381     hostnamed_mem_clean();
 382     return G_SOURCE_REMOVE;
 383 }
 384
 385 void set_signal_handlers() {
 386
 387     /* we don't care about its descriptor, we never need to unregister these */
 388     g_unix_signal_add(SIGINT,  unix_sig_terminate_handler, NULL);
 389     g_unix_signal_add(SIGHUP,  unix_sig_terminate_handler, NULL);
 390     g_unix_signal_add(SIGTERM, unix_sig_terminate_handler, NULL);
 391
 392     /* TODO: the "only once" guarantee only counts towards specific signals.
 393      *       make sure calling a SIGINT and SIGHUP doesn't cause term_handler()
 394      *       to be called twice */
 395 }
 396
 397 int main() {
 398
 399     hostnamed_freeable = g_ptr_array_new();
 400
 401     /* TODO: check for valid, writable config at init. if no, complain to `make install` */
 402
 403     CHASSIS = ICON = OS_CPENAME = 0;
 404     KERN_NAME = KERN_RELEASE = KERN_VERS = 0;
 405     HOSTNAME = STATIC_HOSTNAME = PRETTY_HOSTNAME = NULL;
 406
 407     set_signal_handlers();
 408
 409     if(!determine_chassis_and_icon() || !set_uname_properties() || !set_names())
 410         return 1;
 411
 412     hostnamed_loop = g_main_loop_new(NULL, TRUE);
 413
 414     bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
 415                                    "org.freedesktop.hostname1",
 416                                    G_BUS_NAME_OWNER_FLAGS_NONE,
 417                                    hostnamed_on_bus_acquired,
 418                                    hostnamed_on_name_acquired,
 419                                    hostnamed_on_name_lost,
 420                                    NULL,
 421                                    NULL);
 422
 423     g_main_loop_run(hostnamed_loop);
 424     /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
 425     g_main_loop_unref(hostnamed_loop);
 426
 427     /* guaranteed unownable */
 428     g_bus_unown_name(bus_descriptor);
 429
 430     /* at this point no operations can occur with our data, it is safe to free it + its container */
 431     g_ptr_array_free(hostnamed_freeable, TRUE);
 432
 433     return 0;
 434 }
 435
 436 gboolean set_names() {
 437
 438     /* (1) set up */
 439     gchar *hostname_buf, *static_hostname_buf, *pretty_hostname_buf;
 440     GKeyFile *config;
 441     size_t hostname_divider;
 442
 443     hostname_buf        = (gchar*) g_malloc0(MAXHOSTNAMELEN);
 444     static_hostname_buf = (gchar*) g_malloc0(4096);
 445     pretty_hostname_buf = (gchar*) g_malloc0(4096);
 446
 447     config = g_key_file_new();
 448
 449     g_ptr_array_add(hostnamed_freeable, hostname_buf);
 450     g_ptr_array_add(hostnamed_freeable, static_hostname_buf);
 451     g_ptr_array_add(hostnamed_freeable, pretty_hostname_buf);
 452
 453     /* (2) set HOSTNAME */
 454     if(gethostname(hostname_buf, MAXHOSTNAMELEN) || !g_strcmp0(hostname_buf, ""))
 455         HOSTNAME = "localhost";
 456
 457     HOSTNAME = hostname_buf;
 458
 459     /* this bit gets you the /etc/myname style hostname
 460     hostname_divider = strcspn(hostname_buf, ".");
 461     strncpy(ret, hostname_buf, hostname_divider); */
 462
 463     /* (3) set PRETTY_HOSTNAME */
 464     if(g_key_file_load_from_file(config, "/etc/systemd_compat.conf", G_KEY_FILE_NONE, NULL)
 465         && (pretty_hostname_buf = g_key_file_get_value(config, "hostnamed", "PrettyHostname", NULL)))
 466         PRETTY_HOSTNAME = pretty_hostname_buf;
 467     else
 468         PRETTY_HOSTNAME = "";
 469
 470     if(config)
 471         g_key_file_unref(config);
 472
 473     /* (4) set STATIC_HOSTNAME */
 474     if(!g_strcmp0(PRETTY_HOSTNAME, ""))
 475         STATIC_HOSTNAME = HOSTNAME;
 476
 477     else if((static_hostname_buf = g_hostname_to_ascii(PRETTY_HOSTNAME)))
 478         STATIC_HOSTNAME = static_hostname_buf;
 479
 480     return (HOSTNAME && STATIC_HOSTNAME && PRETTY_HOSTNAME) ? TRUE : FALSE;
 481
 482 }
 483
 484 gboolean set_uname_properties() {
 485
 486     struct utsname un;
 487
 488     if(-1 == uname(&un))
 489         return FALSE;
 490
 491     KERN_NAME = (gchar*)g_malloc0(sizeof(un.sysname));
 492     g_ptr_array_add(hostnamed_freeable, KERN_NAME);
 493     g_strlcpy(KERN_NAME, un.sysname, sizeof(un.sysname));
 494
 495     KERN_RELEASE = (gchar*)g_malloc0(sizeof(un.release));
 496     g_ptr_array_add(hostnamed_freeable, KERN_RELEASE);
 497     g_strlcpy(KERN_RELEASE, un.release, sizeof(un.release));
 498
 499     KERN_VERS = (gchar*)g_malloc0(sizeof(un.version));
 500     g_ptr_array_add(hostnamed_freeable, KERN_VERS);
 501     g_strlcpy(KERN_VERS, un.version, sizeof(un.version));
 502
 503     return TRUE;
 504 }
 505
 506 gboolean determine_chassis_and_icon() {
 507
 508     const size_t bufsize = 4096;
 509
 510     char *hwproduct, *hwmodel, *hwvendor, *hwmachine;
 511     size_t hwproduct_size, hwmodel_size, hwvendor_size, hwmachine_size;
 512     int hwproduct_name[2], hwmodel_name[2], hwvendor_name[2], hwmachine_name[2];
 513     unsigned int i;
 514     gboolean UNSURE_CHASSIS_FLAG, UNSURE_ICON_FLAG;
 515
 516     hwproduct_size = hwmodel_size = hwvendor_size = hwmachine_size = bufsize;
 517     UNSURE_CHASSIS_FLAG = UNSURE_ICON_FLAG = FALSE;
 518     i = 0;
 519
 520     hwproduct = (char*)g_malloc0(4096);
 521     hwmodel   = (char*)g_malloc0(4096);
 522     hwvendor  = (char*)g_malloc0(4096);
 523     hwmachine = (char*)g_malloc0(4096);
 524
 525     g_ptr_array_add(hostnamed_freeable, hwproduct);
 526     g_ptr_array_add(hostnamed_freeable, hwmodel);
 527     g_ptr_array_add(hostnamed_freeable, hwvendor);
 528     g_ptr_array_add(hostnamed_freeable, hwmachine);
 529
 530     hwproduct_name[0] = CTL_HW;
 531     hwproduct_name[1] = HW_PRODUCT;
 532
 533     hwmodel_name[0] = CTL_HW;
 534     hwmodel_name[1] = HW_MODEL;
 535
 536     hwvendor_name[0] = CTL_HW;
 537     hwvendor_name[1] = HW_VENDOR;
 538
 539     hwmachine_name[0] = CTL_HW;
 540     hwmachine_name[1] = HW_MACHINE;
 541
 542     /* pass NULL buffer to check size first, then pass hw to be filled according to freshly-set hw_size */
 543     if(-1 == sysctl(hwproduct_name, 2, NULL, &hwproduct_size, NULL, 0) || -1 == sysctl(hwproduct_name, 2, hwproduct, &hwproduct_size, NULL, 0))
 544         return FALSE;
 545
 546     if(-1 == sysctl(hwmodel_name, 2, NULL, &hwmodel_size, NULL, 0) || -1 == sysctl(hwmodel_name, 2, hwmodel, &hwmodel_size, NULL, 0))
 547         return FALSE;
 548
 549     if(-1 == sysctl(hwvendor_name, 2, NULL, &hwvendor_size, NULL, 0) || -1 == sysctl(hwvendor_name, 2, hwvendor, &hwvendor_size, NULL, 0))
 550         return FALSE;
 551
 552     if(-1 == sysctl(hwmachine_name, 2, NULL, &hwmachine_size, NULL, 0) || -1 == sysctl(hwmachine_name, 2, hwmachine, &hwmachine_size, NULL, 0))
 553         return FALSE;
 554
 555     /* TODO: test for laptop, if not, dmidecode for desktop vs. server
 556      *       probably move this code to vm test func and set a global after running it early, once */
 557
 558     for(; i < G_N_ELEMENTS(chassis_indicator_table); i++) {
 559         if(strcasestr(hwproduct,    chassis_indicator_table[i].match_string)
 560             || strcasestr(hwmodel,  chassis_indicator_table[i].match_string)
 561             || strcasestr(hwvendor, chassis_indicator_table[i].match_string)) {
 562
 563             if(!UNSURE_CHASSIS_FLAG && chassis_indicator_table[i].chassis) {
 564
 565                 UNSURE_CHASSIS_FLAG = chassis_indicator_table[i].chassis_precedence;
 566                 CHASSIS = chassis_indicator_table[i].chassis;
 567             }
 568
 569             if(!UNSURE_ICON_FLAG && chassis_indicator_table[i].icon) {
 570
 571                 UNSURE_ICON_FLAG = chassis_indicator_table[i].icon_precedence;
 572                 ICON = chassis_indicator_table[i].icon;
 573             }
 574         }
 575     }
 576
 577     if(up_native_is_laptop()) {
 578
 579         if(!CHASSIS)
 580             CHASSIS = "laptop";
 581         if(!ICON)
 582             ICON = "input-touchpad"; /* TODO pull an icon package that actually has the icons we're looking for */
 583
 584     } else if(is_server(hwmachine)) {
 585
 586         if(!CHASSIS)
 587             CHASSIS = "server";
 588         if(!ICON)
 589             ICON = "uninterruptible-power-supply";
 590
 591     } else if(!CHASSIS || !ICON) {
 592
 593         if(!CHASSIS)
 594             CHASSIS = "desktop";
 595         if(!ICON)
 596             ICON = "computer";
 597     }
 598
 599     return (CHASSIS && ICON);
 600 }
 601
 602 gboolean is_server(gchar *arch) {
 603
 604     unsigned int i;
 605
 606     for(; i < G_N_ELEMENTS(server_archs); i++)
 607         if(strcasestr(arch, server_archs[i]))
 608             return TRUE;
 609
 610     return FALSE;
 611 }
 612
 613 gboolean up_native_is_laptop() {
 614
 615     struct apm_power_info bstate;
 616     struct sensordev acpiac;
 617
 618     if (up_native_get_sensordev("acpiac0", &acpiac))
 619         return TRUE;
 620
 621     if (-1 == ioctl(up_apm_get_fd(), APM_IOC_GETPOWER, &bstate))
 622         g_error("ioctl on apm fd failed : %s", g_strerror(errno));
 623
 624     return bstate.ac_state != APM_AC_UNKNOWN;
 625 }
 626
 627 int up_apm_get_fd() {
 628
 629     static int apm_fd = 0;
 630
 631     if(apm_fd == 0) {
 632
 633         g_debug("apm_fd is not initialized yet, opening");
 634
 635         /* open /dev/apm */
 636         if((apm_fd = open("/dev/apm", O_RDONLY)) == -1) {
 637             if(errno != ENXIO && errno != ENOENT)
 638                 g_error("cannot open device file");
 639         }
 640     }
 641
 642     return apm_fd;
 643 }
 644
 645 gboolean up_native_get_sensordev(const char * id, struct sensordev * snsrdev) {
 646
 647     int devn;
 648     size_t sdlen = sizeof(struct sensordev);
 649     int mib[] = {CTL_HW, HW_SENSORS, 0, 0 ,0};
 650
 651     for (devn = 0 ; ; devn++) {
 652         mib[2] = devn;
 653         if(sysctl(mib, 3, snsrdev, &sdlen, NULL, 0) == -1) {
 654             if(errno == ENXIO)
 655                 continue;
 656             if(errno == ENOENT)
 657                 break;
 658         }
 659
 660         if (!strcmp(snsrdev->xname, id))
 661             return TRUE;
 662     }
 663
 664     return FALSE;
 665 }