2 * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc>
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.
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.
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>
28 #include <machine/apmvar.h>
30 #include <glib/gprintf.h>
31 #include <glib-unix.h>
32 #include <polkit/polkit.h>
34 #include "hostnamed-gen.h"
35 #include "hostnamed.h"
37 #include "../../polkit-auth.h"
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.
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.
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.
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.
66 * (5) icon precedence bit. see previous definition.
68 struct SYSCTL_LOOKUP_TABLE
{
72 gboolean chassis_precedence
;
73 gboolean icon_precedence
;
76 GPtrArray
*hostnamed_freeable
;
77 Hostname1
*hostnamed_interf
;
79 GMainLoop
*hostnamed_loop
;
82 gboolean dbus_interface_exported
; /* reliable because of gdbus operational guarantees */
84 gchar
*HOSTNAME
, *STATIC_HOSTNAME
, *PRETTY_HOSTNAME
;
85 gchar
*CHASSIS
, *ICON
;
86 gchar
*KERN_NAME
, *KERN_RELEASE
, *KERN_VERS
, *OS_CPENAME
;
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 */
93 /* add any sysctl strings that suggest virtualization here */
94 const struct SYSCTL_LOOKUP_TABLE chassis_indicator_table
[] =
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 */
106 /* archs to check against when determining if machine is server */
107 const gchar
*server_archs
[] = {
113 /* --- begin method/property/dbus signal code --- */
115 /* TODO free some strings here */
117 on_handle_set_hostname(Hostname1
*hn1_passed_interf
,
118 GDBusMethodInvocation
*invoc
,
122 gchar
*proposed_hostname
, *valid_hostname_buf
;
123 const gchar
*bus_name
;
124 gboolean policykit_auth
, ret
, try_to_set
;
126 check_auth_result is_authed
;
128 proposed_hostname
= NULL
;
129 ret
= try_to_set
= FALSE
;
131 params
= g_dbus_method_invocation_get_parameters(invoc
);
132 g_variant_get(params
, "(sb)", &proposed_hostname
, &policykit_auth
);
133 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
135 /* verify caller has correct permissions via polkit */
136 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-hostname", policykit_auth
);
140 case AUTHORIZED_NATIVELY
:
141 case AUTHORIZED_BY_PROMPT
:
145 case UNAUTHORIZED_NATIVELY
:
146 case UNAUTHORIZED_FAILED_PROMPT
:
147 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set hostname.");
151 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
154 case ERROR_BADACTION
:
155 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
160 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set hostname for unknown reason.");
164 /* verify passed hostname's validity */
165 if(try_to_set
&& proposed_hostname
&& (valid_hostname_buf
= g_hostname_to_ascii(proposed_hostname
))) {
167 check_length
= strnlen(valid_hostname_buf
, MAXHOSTNAMELEN
+ 1);
169 if(check_length
> MAXHOSTNAMELEN
) {
171 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Hostname string exceeded maximum length.");
172 g_free(valid_hostname_buf
);
174 } else if(sethostname(proposed_hostname
, check_length
)) {
176 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set hostname for unknown reason.");
177 g_free(valid_hostname_buf
);
181 HOSTNAME
= valid_hostname_buf
;
182 hostname1_set_hostname(hn1_passed_interf
, HOSTNAME
);
183 g_ptr_array_add(hostnamed_freeable
, valid_hostname_buf
);
185 hostname1_complete_set_hostname(hn1_passed_interf
, invoc
);
193 on_handle_set_static_hostname(Hostname1
*hn1_passed_interf
,
194 GDBusMethodInvocation
*invoc
,
199 gchar
*proposed_static_hostname
, *valid_static_hostname_buf
;
200 const gchar
*bus_name
;
201 gboolean policykit_auth
, ret
, try_to_set
;
203 check_auth_result is_authed
;
205 proposed_static_hostname
= NULL
;
206 ret
= try_to_set
= FALSE
;
208 params
= g_dbus_method_invocation_get_parameters(invoc
);
209 g_variant_get(params
, "(sb)", &proposed_static_hostname
, &policykit_auth
);
210 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
212 /* verify caller has correct permissions via polkit */
213 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-static-hostname", policykit_auth
);
217 case AUTHORIZED_NATIVELY
:
218 case AUTHORIZED_BY_PROMPT
:
222 case UNAUTHORIZED_NATIVELY
:
223 case UNAUTHORIZED_FAILED_PROMPT
:
224 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set static hostname.");
228 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
231 case ERROR_BADACTION
:
232 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
237 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set static hostname for unknown reason.");
241 /* verify passed hostname's validity */
242 if(try_to_set
&& proposed_static_hostname
&& (valid_static_hostname_buf
= g_hostname_to_ascii(proposed_static_hostname
))) {
244 check_length
= strnlen(valid_static_hostname_buf
, MAXHOSTNAMELEN
+ 1);
246 if(check_length
> MAXHOSTNAMELEN
) {
248 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Static hostname string exceeded maximum length.");
249 g_free(valid_static_hostname_buf
);
251 } else if(!(STATIC_HOSTNAME
= valid_static_hostname_buf
)) {
253 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set static hostname for unknown reason.");
254 g_free(valid_static_hostname_buf
);
258 g_strdelimit(STATIC_HOSTNAME
, " ", '-');
259 hostname1_set_static_hostname(hn1_passed_interf
, STATIC_HOSTNAME
);
260 g_ptr_array_add(hostnamed_freeable
, valid_static_hostname_buf
);
261 ret
= (!sethostname(valid_static_hostname_buf
, MAXHOSTNAMELEN
)) ? TRUE
: FALSE
; /* TODO set /etc/myname, guarantee domain or substitue .home.network" */
262 hostname1_complete_set_static_hostname(hn1_passed_interf
, invoc
);
270 on_handle_set_pretty_hostname(Hostname1
*hn1_passed_interf
,
271 GDBusMethodInvocation
*invoc
,
276 gchar
*proposed_pretty_hostname
, *valid_pretty_hostname_buf
, *computed_static_hostname
;
277 const gchar
*bus_name
;
278 gboolean policykit_auth
, ret
, try_to_set
;
280 check_auth_result is_authed
;
283 config
= g_key_file_new();
284 proposed_pretty_hostname
= NULL
;
285 ret
= try_to_set
= FALSE
;
287 params
= g_dbus_method_invocation_get_parameters(invoc
);
288 g_variant_get(params
, "(sb)", &proposed_pretty_hostname
, &policykit_auth
);
289 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
291 /* verify caller has correct permissions via polkit */
292 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-pretty-hostname", policykit_auth
);
296 case AUTHORIZED_NATIVELY
:
297 case AUTHORIZED_BY_PROMPT
:
301 case UNAUTHORIZED_NATIVELY
:
302 case UNAUTHORIZED_FAILED_PROMPT
:
303 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set pretty hostname.");
307 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
310 case ERROR_BADACTION
:
311 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
316 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set pretty hostname for unknown reason.");
320 /* verify passed hostname's validity */
321 if(try_to_set
&& proposed_pretty_hostname
&& (valid_pretty_hostname_buf
= g_locale_to_utf8(proposed_pretty_hostname
, -1, 0, 0, NULL
))) {
323 check_length
= strnlen(valid_pretty_hostname_buf
, MAXHOSTNAMELEN
+ 1);
325 if(check_length
> MAXHOSTNAMELEN
) {
327 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Static hostname string exceeded maximum length.");
328 g_free(valid_pretty_hostname_buf
);
330 } else if(!(PRETTY_HOSTNAME
= valid_pretty_hostname_buf
)) {
332 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set pretty hostname for unknown reason.");
333 g_free(valid_pretty_hostname_buf
);
337 hostname1_set_pretty_hostname(hn1_passed_interf
, PRETTY_HOSTNAME
);
338 g_ptr_array_add(hostnamed_freeable
, valid_pretty_hostname_buf
);
339 hostname1_complete_set_pretty_hostname(hn1_passed_interf
, invoc
);
342 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)) {
344 g_key_file_set_string(config
, "hostnamed", "PRETTY_HOSTNAME", valid_pretty_hostname_buf
);
346 /* if((computed_static_hostname = g_hostname_to_ascii(PRETTY_HOSTNAME))) {
348 g_strdelimit(computed_static_hostname, " ", '-');
349 hostname1_set_static_hostname(hn1_passed_interf, computed_static_hostname);
350 STATIC_HOSTNAME = computed_static_hostname;
351 g_ptr_array_add(hostnamed_freeable, computed_static_hostname);
352 g_key_file_set_string(config, "hostnamed", "StaticHostname", computed_static_hostname);
359 g_key_file_save_to_file(config
, "/etc/machine-info", NULL
);
360 g_key_file_unref(config
);
366 on_handle_set_chassis(Hostname1
*hn1_passed_interf
,
367 GDBusMethodInvocation
*invoc
,
372 gchar
*proposed_chassis_name
, *valid_chassis_name_buf
;
373 const gchar
*bus_name
;
374 gboolean policykit_auth
, ret
, try_to_set
;
375 check_auth_result is_authed
;
378 config
= g_key_file_new();
379 proposed_chassis_name
= NULL
;
380 ret
= try_to_set
= FALSE
;
381 valid_chassis_name_buf
= (gchar
*)g_malloc0(8192);
383 params
= g_dbus_method_invocation_get_parameters(invoc
);
384 g_variant_get(params
, "(sb)", &proposed_chassis_name
, &policykit_auth
);
385 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
387 g_strlcpy(valid_chassis_name_buf
, proposed_chassis_name
, (gsize
)64);
389 /* verify caller has correct permissions via polkit */
390 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-chassis", policykit_auth
);
394 case AUTHORIZED_NATIVELY
:
395 case AUTHORIZED_BY_PROMPT
:
399 case UNAUTHORIZED_NATIVELY
:
400 case UNAUTHORIZED_FAILED_PROMPT
:
401 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set chassis type.");
405 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
408 case ERROR_BADACTION
:
409 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
414 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set chassis type for unknown reason.");
418 /* verify passed chassis type's validity */
419 if(try_to_set
&& proposed_chassis_name
) {
421 if(!is_valid_chassis_type(proposed_chassis_name
)) {
423 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Chassis type must be 'desktop', 'laptop', 'server', 'tablet', 'handset', 'vm', or 'container'.");
424 g_free(valid_chassis_name_buf
);
426 } else if(!(CHASSIS
= valid_chassis_name_buf
)) {
428 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set chassis type for unknown reason.");
429 g_free(valid_chassis_name_buf
);
433 hostname1_set_chassis(hn1_passed_interf
, CHASSIS
);
434 g_ptr_array_add(hostnamed_freeable
, valid_chassis_name_buf
);
435 hostname1_complete_set_chassis(hn1_passed_interf
, invoc
);
437 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)) {
440 g_key_file_set_string(config
, "hostnamed", "ChassisType", valid_chassis_name_buf
);
446 g_key_file_save_to_file(config
, "/etc/machine-info", NULL
);
447 g_key_file_unref(config
);
453 on_handle_set_icon_name(Hostname1
*hn1_passed_interf
,
454 GDBusMethodInvocation
*invoc
,
459 gchar
*proposed_icon_name
, *valid_icon_name_buf
;
460 const gchar
*bus_name
;
461 gboolean policykit_auth
, ret
, try_to_set
;
462 check_auth_result is_authed
;
465 config
= g_key_file_new();
466 proposed_icon_name
= NULL
;
467 ret
= try_to_set
= FALSE
;
469 params
= g_dbus_method_invocation_get_parameters(invoc
);
470 g_variant_get(params
, "(sb)", &proposed_icon_name
, &policykit_auth
);
471 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
473 /* verify caller has correct permissions via polkit */
474 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-icon-name", policykit_auth
);
478 case AUTHORIZED_NATIVELY
:
479 case AUTHORIZED_BY_PROMPT
:
483 case UNAUTHORIZED_NATIVELY
:
484 case UNAUTHORIZED_FAILED_PROMPT
:
485 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set icon name.");
489 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
492 case ERROR_BADACTION
:
493 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
498 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set icon name for unknown reason.");
502 /* verify passed chassis type's validity */
503 if(try_to_set
&& proposed_icon_name
) {
505 g_strlcpy(valid_icon_name_buf
, proposed_icon_name
, (gsize
)64);
507 if(!(ICON
= valid_icon_name_buf
)) {
509 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set icon name for unknown reason.");
510 g_free(valid_icon_name_buf
);
514 hostname1_set_icon_name(hn1_passed_interf
, ICON
);
515 g_ptr_array_add(hostnamed_freeable
, valid_icon_name_buf
);
516 hostname1_complete_set_icon_name(hn1_passed_interf
, invoc
);
518 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)) {
521 g_key_file_set_string(config
, "hostnamed", "IconName", valid_icon_name_buf
);
527 g_key_file_save_to_file(config
, "/etc/machine-info", NULL
);
528 g_key_file_unref(config
);
533 /* note: all hostnamed/hostname1's properties are read-only,
534 * and do not need set_ functions, gdbus-codegen realized
535 * this from the XML and handled the to-be error of trying
536 * to set a read-only property's value
543 hostname_buf
= (gchar
*)g_malloc0(MAXHOSTNAMELEN
);
545 if(gethostname(hostname_buf
, MAXHOSTNAMELEN
))
546 return "localhost.home.network"; /* TODO bomb out here probably */
548 else if(!g_strcmp0(HOSTNAME
, hostname_buf
)) {
550 g_free(hostname_buf
);
554 g_ptr_array_add(hostnamed_freeable
, hostname_buf
);
555 HOSTNAME
= hostname_buf
;
556 hostname1_set_hostname(hostnamed_interf
, HOSTNAME
);
562 our_get_static_hostname() {
564 if(STATIC_HOSTNAME
&& g_strcmp0(STATIC_HOSTNAME
, ""))
565 return STATIC_HOSTNAME
;
569 return "localhost.home.network";
573 our_get_pretty_hostname() {
576 return PRETTY_HOSTNAME
;
587 return "desktop"; /* this leads to the most generic beheivor in the unlikely case its returned */
591 our_get_icon_name() {
600 our_get_kernel_name() {
609 our_get_kernel_version() {
618 our_get_kernel_release() {
627 our_get_os_cpename() {
629 /* XXX needs to parse /etc/os-release (fallback to /usr/local/lib/os-release) */
634 our_get_os_pretty_name() {
639 /* --- end method/property/dbus signal code, begin bus/name handlers --- */
641 static void hostnamed_on_bus_acquired(GDBusConnection
*conn
,
643 gpointer user_data
) {
645 g_printf("got bus/name, exporting %s's interface...\n", name
);
647 hostnamed_interf
= hostname1_skeleton_new();
649 /* attach function pointers to generated struct's method handlers */
650 g_signal_connect(hostnamed_interf
, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname
), NULL
);
651 g_signal_connect(hostnamed_interf
, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname
), NULL
);
652 g_signal_connect(hostnamed_interf
, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname
), NULL
);
653 g_signal_connect(hostnamed_interf
, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis
), NULL
);
654 g_signal_connect(hostnamed_interf
, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name
), NULL
);
656 /* set our properties before export */
657 hostname1_set_hostname(hostnamed_interf
, our_get_hostname());
658 hostname1_set_static_hostname(hostnamed_interf
, our_get_static_hostname());
659 hostname1_set_pretty_hostname(hostnamed_interf
, our_get_pretty_hostname());
660 hostname1_set_chassis(hostnamed_interf
, our_get_chassis());
661 hostname1_set_icon_name(hostnamed_interf
, our_get_icon_name());
662 hostname1_set_kernel_name(hostnamed_interf
, our_get_kernel_name());
663 hostname1_set_kernel_version(hostnamed_interf
, our_get_kernel_version());
664 hostname1_set_kernel_release(hostnamed_interf
, our_get_kernel_release());
665 hostname1_set_operating_system_cpename(hostnamed_interf
, our_get_os_cpename());
666 hostname1_set_operating_system_pretty_name(hostnamed_interf
, our_get_os_pretty_name());
668 if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf
),
670 "/org/freedesktop/hostname1",
673 g_printf("failed to export %s's interface!\n", name
); /* unusual edge case, TODO check errno */
674 hostnamed_mem_clean();
678 dbus_interface_exported
= TRUE
;
679 g_printf("exported %s's interface on the system bus...\n", name
);
683 static void hostnamed_on_name_acquired(GDBusConnection
*conn
,
685 gpointer user_data
) {
687 g_printf("success!\n");
690 static void hostnamed_on_name_lost(GDBusConnection
*conn
,
692 gpointer user_data
) {
696 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
);
697 hostnamed_mem_clean();
700 g_printf("lost name %s, exiting...\n", name
);
702 hostnamed_mem_clean();
705 /* --- end bus/name handlers, begin misc unix functions --- */
707 /* safe call to clean and then exit
708 * this stops our GMainLoop safely before letting main() return */
709 void hostnamed_mem_clean() {
711 g_printf("exiting...\n");
713 if(dbus_interface_exported
)
714 g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf
));
716 if(g_main_loop_is_running(hostnamed_loop
))
717 g_main_loop_quit(hostnamed_loop
);
721 /* wrapper for glib's unix signal handling; called only once if terminatating signal is raised against us */
722 gboolean
unix_sig_terminate_handler(gpointer data
) {
724 g_printf("caught SIGINT/HUP/TERM, exiting\n");
726 hostnamed_mem_clean();
727 return G_SOURCE_REMOVE
;
730 void set_signal_handlers() {
732 /* we don't care about its descriptor, we never need to unregister these */
733 g_unix_signal_add(SIGINT
, unix_sig_terminate_handler
, NULL
);
734 g_unix_signal_add(SIGHUP
, unix_sig_terminate_handler
, NULL
);
735 g_unix_signal_add(SIGTERM
, unix_sig_terminate_handler
, NULL
);
737 /* TODO: the "only once" guarantee only counts towards specific signals.
738 * make sure calling a SIGINT and SIGHUP doesn't cause term_handler()
739 * to be called twice */
744 hostnamed_freeable
= g_ptr_array_new();
746 /* TODO: check for valid, writable config at init. if no, complain to `make install` */
748 CHASSIS
= ICON
= OS_CPENAME
= 0;
749 KERN_NAME
= KERN_RELEASE
= KERN_VERS
= 0;
750 HOSTNAME
= STATIC_HOSTNAME
= PRETTY_HOSTNAME
= NULL
;
752 set_signal_handlers();
754 if(!determine_chassis_and_icon() || !set_uname_properties() || !set_names())
757 hostnamed_loop
= g_main_loop_new(NULL
, TRUE
);
759 bus_descriptor
= g_bus_own_name(G_BUS_TYPE_SYSTEM
,
760 "org.freedesktop.hostname1",
761 G_BUS_NAME_OWNER_FLAGS_NONE
,
762 hostnamed_on_bus_acquired
,
763 hostnamed_on_name_acquired
,
764 hostnamed_on_name_lost
,
768 g_main_loop_run(hostnamed_loop
);
769 /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
770 g_main_loop_unref(hostnamed_loop
);
772 /* guaranteed unownable */
773 g_bus_unown_name(bus_descriptor
);
775 /* at this point no operations can occur with our data, it is safe to free it + its container */
776 g_ptr_array_free(hostnamed_freeable
, TRUE
);
781 gboolean
set_names() {
784 gchar
*hostname_buf
, *static_hostname_buf
, *pretty_hostname_buf
;
786 size_t hostname_divider
;
788 hostname_buf
= (gchar
*) g_malloc0(MAXHOSTNAMELEN
);
789 static_hostname_buf
= (gchar
*) g_malloc0(4096);
790 pretty_hostname_buf
= (gchar
*) g_malloc0(4096);
792 config
= g_key_file_new();
794 g_ptr_array_add(hostnamed_freeable
, hostname_buf
);
795 g_ptr_array_add(hostnamed_freeable
, static_hostname_buf
);
796 g_ptr_array_add(hostnamed_freeable
, pretty_hostname_buf
);
798 /* (2) set HOSTNAME */
799 if(gethostname(hostname_buf
, MAXHOSTNAMELEN
) || !g_strcmp0(hostname_buf
, ""))
800 HOSTNAME
= "localhost";
802 HOSTNAME
= hostname_buf
;
804 /* this bit gets you the /etc/myname style hostname
805 hostname_divider = strcspn(hostname_buf, ".");
806 strncpy(ret, hostname_buf, hostname_divider); */
808 /* (3) set PRETTY_HOSTNAME */
809 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)
810 && (pretty_hostname_buf
= g_key_file_get_value(config
, "hostnamed", "PRETTY_HOSTNAME", NULL
)))
811 PRETTY_HOSTNAME
= pretty_hostname_buf
;
813 PRETTY_HOSTNAME
= "";
816 /* (4) set STATIC_HOSTNAME */
817 if((static_hostname_buf
= g_key_file_get_value(config
, "hostnamed", "STATIC_HOSTNAME", NULL
)))
818 STATIC_HOSTNAME
= static_hostname_buf
;
821 STATIC_HOSTNAME
= "";
824 g_key_file_unref(config
);
826 return (HOSTNAME
&& STATIC_HOSTNAME
&& PRETTY_HOSTNAME
) ? TRUE
: FALSE
;
829 gboolean
set_uname_properties() {
836 KERN_NAME
= (gchar
*)g_malloc0(sizeof(un
.sysname
));
837 g_ptr_array_add(hostnamed_freeable
, KERN_NAME
);
838 g_strlcpy(KERN_NAME
, un
.sysname
, sizeof(un
.sysname
));
840 KERN_RELEASE
= (gchar
*)g_malloc0(sizeof(un
.release
));
841 g_ptr_array_add(hostnamed_freeable
, KERN_RELEASE
);
842 g_strlcpy(KERN_RELEASE
, un
.release
, sizeof(un
.release
));
844 KERN_VERS
= (gchar
*)g_malloc0(sizeof(un
.version
));
845 g_ptr_array_add(hostnamed_freeable
, KERN_VERS
);
846 g_strlcpy(KERN_VERS
, un
.version
, sizeof(un
.version
));
851 gboolean
determine_chassis_and_icon() {
853 const size_t bufsize
= 4096;
855 char *hwproduct
, *hwmodel
, *hwvendor
, *hwmachine
;
856 size_t hwproduct_size
, hwmodel_size
, hwvendor_size
, hwmachine_size
;
857 int hwproduct_name
[2], hwmodel_name
[2], hwvendor_name
[2], hwmachine_name
[2];
859 gboolean UNSURE_CHASSIS_FLAG
, UNSURE_ICON_FLAG
;
861 hwproduct_size
= hwmodel_size
= hwvendor_size
= hwmachine_size
= bufsize
;
862 UNSURE_CHASSIS_FLAG
= UNSURE_ICON_FLAG
= FALSE
;
865 hwproduct
= (char*)g_malloc0(4096);
866 hwmodel
= (char*)g_malloc0(4096);
867 hwvendor
= (char*)g_malloc0(4096);
868 hwmachine
= (char*)g_malloc0(4096);
870 g_ptr_array_add(hostnamed_freeable
, hwproduct
);
871 g_ptr_array_add(hostnamed_freeable
, hwmodel
);
872 g_ptr_array_add(hostnamed_freeable
, hwvendor
);
873 g_ptr_array_add(hostnamed_freeable
, hwmachine
);
875 hwproduct_name
[0] = CTL_HW
;
876 hwproduct_name
[1] = HW_PRODUCT
;
878 hwmodel_name
[0] = CTL_HW
;
879 hwmodel_name
[1] = HW_MODEL
;
881 hwvendor_name
[0] = CTL_HW
;
882 hwvendor_name
[1] = HW_VENDOR
;
884 hwmachine_name
[0] = CTL_HW
;
885 hwmachine_name
[1] = HW_MACHINE
;
887 /* pass NULL buffer to check size first, then pass hw to be filled according to freshly-set hw_size */
888 if(-1 == sysctl(hwproduct_name
, 2, NULL
, &hwproduct_size
, NULL
, 0) || -1 == sysctl(hwproduct_name
, 2, hwproduct
, &hwproduct_size
, NULL
, 0))
891 if(-1 == sysctl(hwmodel_name
, 2, NULL
, &hwmodel_size
, NULL
, 0) || -1 == sysctl(hwmodel_name
, 2, hwmodel
, &hwmodel_size
, NULL
, 0))
894 if(-1 == sysctl(hwvendor_name
, 2, NULL
, &hwvendor_size
, NULL
, 0) || -1 == sysctl(hwvendor_name
, 2, hwvendor
, &hwvendor_size
, NULL
, 0))
897 if(-1 == sysctl(hwmachine_name
, 2, NULL
, &hwmachine_size
, NULL
, 0) || -1 == sysctl(hwmachine_name
, 2, hwmachine
, &hwmachine_size
, NULL
, 0))
900 /* TODO: test for laptop, if not, dmidecode for desktop vs. server
901 * probably move this code to vm test func and set a global after running it early, once */
903 for(; i
< G_N_ELEMENTS(chassis_indicator_table
); i
++) {
904 if(strcasestr(hwproduct
, chassis_indicator_table
[i
].match_string
)
905 || strcasestr(hwmodel
, chassis_indicator_table
[i
].match_string
)
906 || strcasestr(hwvendor
, chassis_indicator_table
[i
].match_string
)) {
908 if(!UNSURE_CHASSIS_FLAG
&& chassis_indicator_table
[i
].chassis
) {
910 UNSURE_CHASSIS_FLAG
= chassis_indicator_table
[i
].chassis_precedence
;
911 CHASSIS
= chassis_indicator_table
[i
].chassis
;
914 if(!UNSURE_ICON_FLAG
&& chassis_indicator_table
[i
].icon
) {
916 UNSURE_ICON_FLAG
= chassis_indicator_table
[i
].icon_precedence
;
917 ICON
= chassis_indicator_table
[i
].icon
;
922 if(up_native_is_laptop()) {
927 ICON
= "input-touchpad"; /* TODO pull an icon package that actually has the icons we're looking for */
929 } else if(is_server(hwmachine
)) {
934 ICON
= "uninterruptible-power-supply";
936 } else if(!CHASSIS
|| !ICON
) {
944 return (CHASSIS
&& ICON
);
947 gboolean
is_server(gchar
*arch
) {
951 for(; i
< G_N_ELEMENTS(server_archs
); i
++)
952 if(strcasestr(arch
, server_archs
[i
]))
958 gboolean
up_native_is_laptop() {
960 struct apm_power_info bstate
;
961 struct sensordev acpiac
;
963 if (up_native_get_sensordev("acpiac0", &acpiac
))
966 if (-1 == ioctl(up_apm_get_fd(), APM_IOC_GETPOWER
, &bstate
))
967 g_error("ioctl on apm fd failed : %s", g_strerror(errno
));
969 return bstate
.ac_state
!= APM_AC_UNKNOWN
;
972 int up_apm_get_fd() {
974 static int apm_fd
= 0;
978 g_debug("apm_fd is not initialized yet, opening");
981 if((apm_fd
= open("/dev/apm", O_RDONLY
)) == -1) {
982 if(errno
!= ENXIO
&& errno
!= ENOENT
)
983 g_error("cannot open device file");
990 gboolean
up_native_get_sensordev(const char * id
, struct sensordev
* snsrdev
) {
993 size_t sdlen
= sizeof(struct sensordev
);
994 int mib
[] = {CTL_HW
, HW_SENSORS
, 0, 0 ,0};
996 for (devn
= 0 ; ; devn
++) {
998 if(sysctl(mib
, 3, snsrdev
, &sdlen
, NULL
, 0) == -1) {
1005 if (!strcmp(snsrdev
->xname
, id
))
1012 static gboolean
is_valid_chassis_type(gchar
*test
) {
1014 if(!g_strcmp0(test
, "desktop") ||
1015 !g_strcmp0(test
, "laptop") ||
1016 !g_strcmp0(test
, "server") ||
1017 !g_strcmp0(test
, "tablet") ||
1018 !g_strcmp0(test
, "handset") ||
1019 !g_strcmp0(test
, "vm") ||
1020 !g_strcmp0(test
, "container") ||
1021 !g_strcmp0(test
, ""))