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 #include "../../polkit-auth.h"
  38
  39 /* format: {
  40  *           (1) string to be matched against runtime machine's sysctl output.
  41  *               can be either the exact string or a substring contained
  42  *               within sysctl strings. no "guesses" here, a match should
  43  *               reliably indicate the chassis/icon.
  44  *
  45  *           (2) string describing chassis type divulged by (1).
  46  *               must be one of "desktop", "laptop", "server",
  47  *               "tablet", "handset", "vm", "container" or NULL
  48  *               if only icon string can be ascertained. "vm" refers
  49  *               to operating systems running on baremetal hypervisors
  50  *               (hardware virtualization, like XEN) while "container"
  51  *               refers to OSs running on shared hypervisors like
  52  *               virtualbox or VMware. consider the distinction carefully
  53  *               as common virtualization software like KVM may share
  54  *               characteristics of both "vm" and "container" types.
  55  *
  56  *           (3) string specifying icon to use. follows XDG icon spec.
  57  *               see http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
  58  *               for allowed strings.
  59  *
  60  *           (4) chassis precedence bit. TRUE if (2) is defined and
  61  *               we're certain it is the proper string. FALSE in the
  62  *               circumstance (2) may be the correct string, unless
  63  *               a match with this bit set to TRUE overrides it.
  64  *               if (2) is NULL, this bit is inconsequential.
  65  *
  66  *           (5) icon precedence bit. see previous definition.
  67  *         }                                               */
  68 struct SYSCTL_LOOKUP_TABLE {
  69     gchar    *match_string;
  70     gchar    *chassis;
  71     gchar    *icon;
  72     gboolean chassis_precedence;
  73     gboolean icon_precedence;
  74 };
  75
  76 GPtrArray *hostnamed_freeable;
  77 Hostname1 *hostnamed_interf;
  78
  79 GMainLoop *hostnamed_loop;
  80
  81 guint bus_descriptor;
  82 gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */
  83
  84 gchar *HOSTNAME, *STATIC_HOSTNAME, *PRETTY_HOSTNAME;
  85 gchar *CHASSIS, *ICON;
  86 gchar *KERN_NAME, *KERN_RELEASE, *KERN_VERS, *OS_CPENAME;
  87
  88 /* TODO no specific vm or laptop icon in gnome
  89  * NOTE paravirtualization on xen is only available for linuxes right now
  90  * dmesg on linux systems reveals xen and virtualization method (HVM or PVM)
  91  * but we will worry about those later */
  92
  93 /* add any sysctl strings that suggest virtualization here */
  94 const struct SYSCTL_LOOKUP_TABLE chassis_indicator_table[] =
  95 {
  96     { "QEMU Virtual CPU",        "vm",        NULL,              FALSE, FALSE }, /* could be QEMU running in userspace or as part of KVM */
  97     { "KVM",                     "vm",        "drive-multidisk", FALSE, FALSE },
  98     { "SmartDC HVM",             "vm",        "drive-multidisk", TRUE,  TRUE  }, /* illumos-joyent kvm */
  99     { "VirtualBox",              "vm",        "drive-multidisk", TRUE,  TRUE  },
 100     { "VMware, Inc.",            "vm",        "drive-multidisk", TRUE,  TRUE  },
 101     { "VMware Virtual Platform", "vm",        "drive-multidisk", TRUE,  TRUE  },
 102     { "Parallels",               "vm",        "drive-multidisk", TRUE,  TRUE  }, /* need verification */
 103     { "Xen",                     "vm",        "drive-multidisk", FALSE, FALSE }
 104 }; /* TODO: chroots, etc. are the actual "containers", add them */
 105
 106 /* archs to check against when determining if machine is server */
 107 const gchar *server_archs[] = {
 108     "hppa",
 109     "sparc",
 110     "sparc64"
 111 };
 112
 113 /* --- begin method/property/dbus signal code --- */
 114
 115 /* TODO the extra boolean passed to these funcs is for policykit auth */
 116 /* TODO complete call with error, message, etc */
 117 static gboolean
 118 on_handle_set_hostname(Hostname1 *hn1_passed_interf,
 119                        GDBusMethodInvocation *invoc,
 120                        const gchar *greet,
 121                        gpointer data) {
 122     GVariant *params;
 123     gchar *proposed_hostname, *valid_hostname_buf;
 124     gboolean policykit_auth, ret;
 125     size_t check_length;
 126
 127     proposed_hostname = NULL;
 128     ret = FALSE;
 129
 130     params = g_dbus_method_invocation_get_parameters(invoc);
 131     g_variant_get(params, "(sb)", &proposed_hostname, &policykit_auth);
 132
 133     if(proposed_hostname && (valid_hostname_buf = g_hostname_to_ascii(proposed_hostname))) {
 134
 135         check_length = strnlen(proposed_hostname, MAXHOSTNAMELEN + 1);
 136
 137         if(check_length > MAXHOSTNAMELEN)
 138             g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Hostname string exceeded maximum length.");
 139
 140         else if(sethostname(proposed_hostname, check_length))
 141             g_dbus_method_invocation_return_dbus_error(invoc, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to change hostname.");
 142
 143         else {
 144             HOSTNAME = proposed_hostname;
 145             hostname1_set_hostname(hn1_passed_interf, HOSTNAME);
 146             ret = TRUE;
 147             hostname1_complete_set_hostname(hn1_passed_interf, invoc);
 148         }
 149     }
 150
 151     if(proposed_hostname)
 152         g_free(proposed_hostname);
 153     if(valid_hostname_buf)
 154         g_free(valid_hostname_buf);
 155
 156     return ret;
 157 }
 158
 159 static gboolean
 160 on_handle_set_static_hostname(Hostname1 *hn1_passed_interf,
 161                               GDBusMethodInvocation *invoc,
 162                               const gchar *greet,
 163                               gpointer data) {
 164     return FALSE;
 165 }
 166
 167 static gboolean
 168 on_handle_set_pretty_hostname(Hostname1 *hn1_passed_interf,
 169                               GDBusMethodInvocation *invoc,
 170                               const gchar *greet,
 171                               gpointer data) {
 172     return FALSE;
 173 }
 174
 175 static gboolean
 176 on_handle_set_chassis(Hostname1 *hn1_passed_interf,
 177                       GDBusMethodInvocation *invoc,
 178                       const gchar *greet,
 179                       gpointer data) {
 180     return FALSE;
 181 }
 182
 183 static gboolean
 184 on_handle_set_icon_name(Hostname1 *hn1_passed_interf,
 185                         GDBusMethodInvocation *invoc,
 186                         const gchar *greet,
 187                         gpointer data) {
 188     return FALSE;
 189 }
 190
 191 /* note: all hostnamed/hostname1's properties are read-only,
 192  * and do not need set_ functions, gdbus-codegen realized
 193  * this from the XML and handled the to-be error of trying
 194  * to set a read-only property's value
 195  */
 196
 197 const gchar *
 198 our_get_hostname() {
 199
 200     gchar *hostname_buf;
 201     hostname_buf = (gchar *)g_malloc0(MAXHOSTNAMELEN);
 202
 203     if(gethostname(hostname_buf, MAXHOSTNAMELEN))
 204         return "localhost.home.network"; /* TODO bomb out here probably */
 205
 206     else if(!g_strcmp0(HOSTNAME, hostname_buf)) {
 207
 208         g_free(hostname_buf);
 209         return HOSTNAME;
 210     }
 211
 212     g_ptr_array_add(hostnamed_freeable, hostname_buf);
 213     HOSTNAME = hostname_buf;
 214     hostname1_set_hostname(hostnamed_interf, HOSTNAME);
 215
 216     return HOSTNAME;
 217 }
 218
 219 const gchar *
 220 our_get_static_hostname() {
 221
 222     if(STATIC_HOSTNAME && g_strcmp0(STATIC_HOSTNAME, ""))
 223         return STATIC_HOSTNAME;
 224     else if(HOSTNAME)
 225         return HOSTNAME;
 226
 227     return "localhost.home.network";
 228 }
 229
 230 const gchar *
 231 our_get_pretty_hostname() {
 232
 233     if(PRETTY_HOSTNAME)
 234         return PRETTY_HOSTNAME;
 235
 236     return "";
 237 }
 238
 239 const gchar *
 240 our_get_chassis() {
 241
 242    if(CHASSIS)
 243         return CHASSIS;
 244
 245     return "desktop"; /* this leads to the most generic beheivor in the unlikely case its returned */
 246 }
 247
 248 const gchar *
 249 our_get_icon_name() {
 250
 251     if(ICON)
 252         return ICON;
 253
 254     return "";
 255 }
 256
 257 const gchar *
 258 our_get_kernel_name() {
 259
 260     if(KERN_NAME)
 261         return KERN_NAME;
 262
 263     return "";
 264 }
 265
 266 const gchar *
 267 our_get_kernel_version() {
 268
 269     if(KERN_VERS)
 270         return KERN_VERS;
 271
 272     return "";
 273 }
 274
 275 const gchar *
 276 our_get_kernel_release() {
 277
 278     if(KERN_RELEASE)
 279         return KERN_RELEASE;
 280
 281     return "";
 282 }
 283
 284 const gchar *
 285 our_get_os_cpename() {
 286
 287     return "ONEDAY";
 288 }
 289
 290 const gchar *
 291 our_get_os_pretty_name() {
 292
 293     return "OpenBSD";
 294 }
 295
 296 /* --- end method/property/dbus signal code, begin bus/name handlers --- */
 297
 298 static void hostnamed_on_bus_acquired(GDBusConnection *conn,
 299                                       const gchar *name,
 300                                       gpointer user_data) {
 301
 302     g_printf("got bus/name, exporting %s's interface...\n", name);
 303
 304     hostnamed_interf = hostname1_skeleton_new();
 305
 306     /* attach function pointers to generated struct's method handlers */
 307     g_signal_connect(hostnamed_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);
 308     g_signal_connect(hostnamed_interf, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname), NULL);
 309     g_signal_connect(hostnamed_interf, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname), NULL);
 310     g_signal_connect(hostnamed_interf, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis), NULL);
 311     g_signal_connect(hostnamed_interf, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name), NULL);
 312
 313     /* set our properties before export */
 314     hostname1_set_hostname(hostnamed_interf, our_get_hostname());
 315     hostname1_set_static_hostname(hostnamed_interf, our_get_static_hostname());
 316     hostname1_set_pretty_hostname(hostnamed_interf, our_get_pretty_hostname());
 317     hostname1_set_chassis(hostnamed_interf, our_get_chassis());
 318     hostname1_set_icon_name(hostnamed_interf, our_get_icon_name());
 319     hostname1_set_kernel_name(hostnamed_interf, our_get_kernel_name());
 320     hostname1_set_kernel_version(hostnamed_interf, our_get_kernel_version());
 321     hostname1_set_kernel_release(hostnamed_interf, our_get_kernel_release());
 322     hostname1_set_operating_system_cpename(hostnamed_interf, our_get_os_cpename());
 323     hostname1_set_operating_system_pretty_name(hostnamed_interf, our_get_os_pretty_name());
 324
 325     if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf),
 326                                          conn,
 327                                          "/org/freedesktop/hostname1",
 328                                          NULL)) {
 329
 330         g_printf("failed to export %s's interface!\n", name); /* unusual edge case, TODO check errno */
 331         hostnamed_mem_clean();
 332
 333     } else {
 334
 335         dbus_interface_exported = TRUE;
 336         g_printf("exported %s's interface on the system bus...\n", name);
 337     }
 338 }
 339
 340 static void hostnamed_on_name_acquired(GDBusConnection *conn,
 341                                        const gchar *name,
 342                                        gpointer user_data) {
 343
 344     g_printf("success!\n");
 345 }
 346
 347 static void hostnamed_on_name_lost(GDBusConnection *conn,
 348                                    const gchar *name,
 349                                    gpointer user_data) {
 350
 351     if(!conn) {
 352
 353         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);
 354         hostnamed_mem_clean();
 355     }
 356
 357     g_printf("lost name %s, exiting...\n", name);
 358
 359     hostnamed_mem_clean();
 360 }
 361
 362 /* --- end bus/name handlers, begin misc unix functions --- */
 363
 364 /* safe call to clean and then exit
 365  * this stops our GMainLoop safely before letting main() return */
 366 void hostnamed_mem_clean() {
 367
 368     g_printf("exiting...\n");
 369
 370     if(dbus_interface_exported)
 371         g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf));
 372
 373     if(g_main_loop_is_running(hostnamed_loop))
 374         g_main_loop_quit(hostnamed_loop);
 375
 376 }
 377
 378 /* wrapper for glib's unix signal handling; called only once if terminatating signal is raised against us */
 379 gboolean unix_sig_terminate_handler(gpointer data) {
 380
 381     g_printf("caught SIGINT/HUP/TERM, exiting\n");
 382
 383     hostnamed_mem_clean();
 384     return G_SOURCE_REMOVE;
 385 }
 386
 387 void set_signal_handlers() {
 388
 389     /* we don't care about its descriptor, we never need to unregister these */
 390     g_unix_signal_add(SIGINT,  unix_sig_terminate_handler, NULL);
 391     g_unix_signal_add(SIGHUP,  unix_sig_terminate_handler, NULL);
 392     g_unix_signal_add(SIGTERM, unix_sig_terminate_handler, NULL);
 393
 394     /* TODO: the "only once" guarantee only counts towards specific signals.
 395      *       make sure calling a SIGINT and SIGHUP doesn't cause term_handler()
 396      *       to be called twice */
 397 }
 398
 399 int main() {
 400
 401     hostnamed_freeable = g_ptr_array_new();
 402
 403     /* TODO: check for valid, writable config at init. if no, complain to `make install` */
 404
 405     CHASSIS = ICON = OS_CPENAME = 0;
 406     KERN_NAME = KERN_RELEASE = KERN_VERS = 0;
 407     HOSTNAME = STATIC_HOSTNAME = PRETTY_HOSTNAME = NULL;
 408
 409     set_signal_handlers();
 410
 411     if(!determine_chassis_and_icon() || !set_uname_properties() || !set_names())
 412         return 1;
 413
 414     hostnamed_loop = g_main_loop_new(NULL, TRUE);
 415
 416     bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
 417                                    "org.freedesktop.hostname1",
 418                                    G_BUS_NAME_OWNER_FLAGS_NONE,
 419                                    hostnamed_on_bus_acquired,
 420                                    hostnamed_on_name_acquired,
 421                                    hostnamed_on_name_lost,
 422                                    NULL,
 423                                    NULL);
 424
 425     g_main_loop_run(hostnamed_loop);
 426     /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
 427     g_main_loop_unref(hostnamed_loop);
 428
 429     /* guaranteed unownable */
 430     g_bus_unown_name(bus_descriptor);
 431
 432     /* at this point no operations can occur with our data, it is safe to free it + its container */
 433     g_ptr_array_free(hostnamed_freeable, TRUE);
 434
 435     return 0;
 436 }
 437
 438 gboolean set_names() {
 439
 440     /* (1) set up */
 441     gchar *hostname_buf, *static_hostname_buf, *pretty_hostname_buf;
 442     GKeyFile *config;
 443     size_t hostname_divider;
 444
 445     hostname_buf        = (gchar*) g_malloc0(MAXHOSTNAMELEN);
 446     static_hostname_buf = (gchar*) g_malloc0(4096);
 447     pretty_hostname_buf = (gchar*) g_malloc0(4096);
 448
 449     config = g_key_file_new();
 450
 451     g_ptr_array_add(hostnamed_freeable, hostname_buf);
 452     g_ptr_array_add(hostnamed_freeable, static_hostname_buf);
 453     g_ptr_array_add(hostnamed_freeable, pretty_hostname_buf);
 454
 455     /* (2) set HOSTNAME */
 456     if(gethostname(hostname_buf, MAXHOSTNAMELEN) || !g_strcmp0(hostname_buf, ""))
 457         HOSTNAME = "localhost";
 458
 459     HOSTNAME = hostname_buf;
 460
 461     /* this bit gets you the /etc/myname style hostname
 462     hostname_divider = strcspn(hostname_buf, ".");
 463     strncpy(ret, hostname_buf, hostname_divider); */
 464
 465     /* (3) set PRETTY_HOSTNAME */
 466     if(g_key_file_load_from_file(config, "/etc/systemd_compat.conf", G_KEY_FILE_NONE, NULL)
 467         && (pretty_hostname_buf = g_key_file_get_value(config, "hostnamed", "PrettyHostname", NULL)))
 468         PRETTY_HOSTNAME = pretty_hostname_buf;
 469     else
 470         PRETTY_HOSTNAME = "";
 471
 472     if(config)
 473         g_key_file_unref(config);
 474
 475     /* (4) set STATIC_HOSTNAME */
 476     if(!g_strcmp0(PRETTY_HOSTNAME, ""))
 477         STATIC_HOSTNAME = HOSTNAME;
 478
 479     else if((static_hostname_buf = g_hostname_to_ascii(PRETTY_HOSTNAME)))
 480         STATIC_HOSTNAME = static_hostname_buf;
 481
 482     return (HOSTNAME && STATIC_HOSTNAME && PRETTY_HOSTNAME) ? TRUE : FALSE;
 483
 484 }
 485
 486 gboolean set_uname_properties() {
 487
 488     struct utsname un;
 489
 490     if(-1 == uname(&un))
 491         return FALSE;
 492
 493     KERN_NAME = (gchar*)g_malloc0(sizeof(un.sysname));
 494     g_ptr_array_add(hostnamed_freeable, KERN_NAME);
 495     g_strlcpy(KERN_NAME, un.sysname, sizeof(un.sysname));
 496
 497     KERN_RELEASE = (gchar*)g_malloc0(sizeof(un.release));
 498     g_ptr_array_add(hostnamed_freeable, KERN_RELEASE);
 499     g_strlcpy(KERN_RELEASE, un.release, sizeof(un.release));
 500
 501     KERN_VERS = (gchar*)g_malloc0(sizeof(un.version));
 502     g_ptr_array_add(hostnamed_freeable, KERN_VERS);
 503     g_strlcpy(KERN_VERS, un.version, sizeof(un.version));
 504
 505     return TRUE;
 506 }
 507
 508 gboolean determine_chassis_and_icon() {
 509
 510     const size_t bufsize = 4096;
 511
 512     char *hwproduct, *hwmodel, *hwvendor, *hwmachine;
 513     size_t hwproduct_size, hwmodel_size, hwvendor_size, hwmachine_size;
 514     int hwproduct_name[2], hwmodel_name[2], hwvendor_name[2], hwmachine_name[2];
 515     unsigned int i;
 516     gboolean UNSURE_CHASSIS_FLAG, UNSURE_ICON_FLAG;
 517
 518     hwproduct_size = hwmodel_size = hwvendor_size = hwmachine_size = bufsize;
 519     UNSURE_CHASSIS_FLAG = UNSURE_ICON_FLAG = FALSE;
 520     i = 0;
 521
 522     hwproduct = (char*)g_malloc0(4096);
 523     hwmodel   = (char*)g_malloc0(4096);
 524     hwvendor  = (char*)g_malloc0(4096);
 525     hwmachine = (char*)g_malloc0(4096);
 526
 527     g_ptr_array_add(hostnamed_freeable, hwproduct);
 528     g_ptr_array_add(hostnamed_freeable, hwmodel);
 529     g_ptr_array_add(hostnamed_freeable, hwvendor);
 530     g_ptr_array_add(hostnamed_freeable, hwmachine);
 531
 532     hwproduct_name[0] = CTL_HW;
 533     hwproduct_name[1] = HW_PRODUCT;
 534
 535     hwmodel_name[0] = CTL_HW;
 536     hwmodel_name[1] = HW_MODEL;
 537
 538     hwvendor_name[0] = CTL_HW;
 539     hwvendor_name[1] = HW_VENDOR;
 540
 541     hwmachine_name[0] = CTL_HW;
 542     hwmachine_name[1] = HW_MACHINE;
 543
 544     /* pass NULL buffer to check size first, then pass hw to be filled according to freshly-set hw_size */
 545     if(-1 == sysctl(hwproduct_name, 2, NULL, &hwproduct_size, NULL, 0) || -1 == sysctl(hwproduct_name, 2, hwproduct, &hwproduct_size, NULL, 0))
 546         return FALSE;
 547
 548     if(-1 == sysctl(hwmodel_name, 2, NULL, &hwmodel_size, NULL, 0) || -1 == sysctl(hwmodel_name, 2, hwmodel, &hwmodel_size, NULL, 0))
 549         return FALSE;
 550
 551     if(-1 == sysctl(hwvendor_name, 2, NULL, &hwvendor_size, NULL, 0) || -1 == sysctl(hwvendor_name, 2, hwvendor, &hwvendor_size, NULL, 0))
 552         return FALSE;
 553
 554     if(-1 == sysctl(hwmachine_name, 2, NULL, &hwmachine_size, NULL, 0) || -1 == sysctl(hwmachine_name, 2, hwmachine, &hwmachine_size, NULL, 0))
 555         return FALSE;
 556
 557     /* TODO: test for laptop, if not, dmidecode for desktop vs. server
 558      *       probably move this code to vm test func and set a global after running it early, once */
 559
 560     for(; i < G_N_ELEMENTS(chassis_indicator_table); i++) {
 561         if(strcasestr(hwproduct,    chassis_indicator_table[i].match_string)
 562             || strcasestr(hwmodel,  chassis_indicator_table[i].match_string)
 563             || strcasestr(hwvendor, chassis_indicator_table[i].match_string)) {
 564
 565             if(!UNSURE_CHASSIS_FLAG && chassis_indicator_table[i].chassis) {
 566
 567                 UNSURE_CHASSIS_FLAG = chassis_indicator_table[i].chassis_precedence;
 568                 CHASSIS = chassis_indicator_table[i].chassis;
 569             }
 570
 571             if(!UNSURE_ICON_FLAG && chassis_indicator_table[i].icon) {
 572
 573                 UNSURE_ICON_FLAG = chassis_indicator_table[i].icon_precedence;
 574                 ICON = chassis_indicator_table[i].icon;
 575             }
 576         }
 577     }
 578
 579     if(up_native_is_laptop()) {
 580
 581         if(!CHASSIS)
 582             CHASSIS = "laptop";
 583         if(!ICON)
 584             ICON = "input-touchpad"; /* TODO pull an icon package that actually has the icons we're looking for */
 585
 586     } else if(is_server(hwmachine)) {
 587
 588         if(!CHASSIS)
 589             CHASSIS = "server";
 590         if(!ICON)
 591             ICON = "uninterruptible-power-supply";
 592
 593     } else if(!CHASSIS || !ICON) {
 594
 595         if(!CHASSIS)
 596             CHASSIS = "desktop";
 597         if(!ICON)
 598             ICON = "computer";
 599     }
 600
 601     return (CHASSIS && ICON);
 602 }
 603
 604 gboolean is_server(gchar *arch) {
 605
 606     unsigned int i;
 607
 608     for(; i < G_N_ELEMENTS(server_archs); i++)
 609         if(strcasestr(arch, server_archs[i]))
 610             return TRUE;
 611
 612     return FALSE;
 613 }
 614
 615 gboolean up_native_is_laptop() {
 616
 617     struct apm_power_info bstate;
 618     struct sensordev acpiac;
 619
 620     if (up_native_get_sensordev("acpiac0", &acpiac))
 621         return TRUE;
 622
 623     if (-1 == ioctl(up_apm_get_fd(), APM_IOC_GETPOWER, &bstate))
 624         g_error("ioctl on apm fd failed : %s", g_strerror(errno));
 625
 626     return bstate.ac_state != APM_AC_UNKNOWN;
 627 }
 628
 629 int up_apm_get_fd() {
 630
 631     static int apm_fd = 0;
 632
 633     if(apm_fd == 0) {
 634
 635         g_debug("apm_fd is not initialized yet, opening");
 636
 637         /* open /dev/apm */
 638         if((apm_fd = open("/dev/apm", O_RDONLY)) == -1) {
 639             if(errno != ENXIO && errno != ENOENT)
 640                 g_error("cannot open device file");
 641         }
 642     }
 643
 644     return apm_fd;
 645 }
 646
 647 gboolean up_native_get_sensordev(const char * id, struct sensordev * snsrdev) {
 648
 649     int devn;
 650     size_t sdlen = sizeof(struct sensordev);
 651     int mib[] = {CTL_HW, HW_SENSORS, 0, 0 ,0};
 652
 653     for (devn = 0 ; ; devn++) {
 654         mib[2] = devn;
 655         if(sysctl(mib, 3, snsrdev, &sdlen, NULL, 0) == -1) {
 656             if(errno == ENXIO)
 657                 continue;
 658             if(errno == ENOENT)
 659                 break;
 660         }
 661
 662         if (!strcmp(snsrdev->xname, id))
 663             return TRUE;
 664     }
 665
 666     return FALSE;
 667 }