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 static const gchar
*DEFAULT_DOMAIN
= ".home.network";
114 static const gchar
*OS_HOSTNAME_PATH
= "/etc/myname";
116 /* --- begin method/property/dbus signal code --- */
118 /* TODO free some strings here */
120 on_handle_set_hostname(Hostname1
*hn1_passed_interf
,
121 GDBusMethodInvocation
*invoc
,
125 gchar
*proposed_hostname
, *valid_hostname_buf
;
126 const gchar
*bus_name
;
127 gboolean policykit_auth
, ret
, try_to_set
;
129 check_auth_result is_authed
;
131 proposed_hostname
= NULL
;
132 ret
= try_to_set
= FALSE
;
134 params
= g_dbus_method_invocation_get_parameters(invoc
);
135 g_variant_get(params
, "(sb)", &proposed_hostname
, &policykit_auth
);
136 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
138 /* verify caller has correct permissions via polkit */
139 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-hostname", policykit_auth
);
143 case AUTHORIZED_NATIVELY
:
144 case AUTHORIZED_BY_PROMPT
:
148 case UNAUTHORIZED_NATIVELY
:
149 case UNAUTHORIZED_FAILED_PROMPT
:
150 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set hostname.");
154 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
157 case ERROR_BADACTION
:
158 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
163 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set hostname for unknown reason.");
167 /* verify passed hostname's validity */
168 if(try_to_set
&& proposed_hostname
&& (valid_hostname_buf
= g_hostname_to_ascii(proposed_hostname
))) {
170 check_length
= strnlen(valid_hostname_buf
, MAXHOSTNAMELEN
+ 1);
172 if(check_length
> MAXHOSTNAMELEN
) {
174 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Hostname string exceeded maximum length.");
175 g_free(valid_hostname_buf
);
177 } else if(sethostname(proposed_hostname
, check_length
)) {
179 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set hostname for unknown reason.");
180 g_free(valid_hostname_buf
);
184 HOSTNAME
= valid_hostname_buf
;
185 hostname1_set_hostname(hn1_passed_interf
, HOSTNAME
);
186 g_ptr_array_add(hostnamed_freeable
, valid_hostname_buf
);
188 hostname1_complete_set_hostname(hn1_passed_interf
, invoc
);
196 on_handle_set_static_hostname(Hostname1
*hn1_passed_interf
,
197 GDBusMethodInvocation
*invoc
,
202 gchar
*proposed_static_hostname
, *valid_static_hostname_buf
;
203 const gchar
*bus_name
;
204 gboolean policykit_auth
, ret
, try_to_set
;
206 check_auth_result is_authed
;
208 proposed_static_hostname
= NULL
;
209 ret
= try_to_set
= FALSE
;
211 params
= g_dbus_method_invocation_get_parameters(invoc
);
212 g_variant_get(params
, "(sb)", &proposed_static_hostname
, &policykit_auth
);
213 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
215 /* verify caller has correct permissions via polkit */
216 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-static-hostname", policykit_auth
);
220 case AUTHORIZED_NATIVELY
:
221 case AUTHORIZED_BY_PROMPT
:
225 case UNAUTHORIZED_NATIVELY
:
226 case UNAUTHORIZED_FAILED_PROMPT
:
227 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set static hostname.");
231 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
234 case ERROR_BADACTION
:
235 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
240 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set static hostname for unknown reason.");
244 /* verify passed hostname's validity */
245 if(try_to_set
&& proposed_static_hostname
&& (valid_static_hostname_buf
= g_hostname_to_ascii(proposed_static_hostname
))) {
247 check_length
= strnlen(valid_static_hostname_buf
, MAXHOSTNAMELEN
+ 1);
249 if(check_length
> MAXHOSTNAMELEN
) {
251 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Static hostname string exceeded maximum length.");
252 g_free(valid_static_hostname_buf
);
254 } else if(!(STATIC_HOSTNAME
= valid_static_hostname_buf
)) {
256 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set static hostname for unknown reason.");
257 g_free(valid_static_hostname_buf
);
261 g_strdelimit(STATIC_HOSTNAME
, " ", '-');
262 hostname1_set_static_hostname(hn1_passed_interf
, STATIC_HOSTNAME
);
263 g_ptr_array_add(hostnamed_freeable
, valid_static_hostname_buf
);
264 ret
= (!sethostname(valid_static_hostname_buf
, MAXHOSTNAMELEN
)) ? TRUE
: FALSE
; /* TODO set /etc/myname, guarantee domain or substitue .home.network" */
265 hostname1_complete_set_static_hostname(hn1_passed_interf
, invoc
);
273 on_handle_set_pretty_hostname(Hostname1
*hn1_passed_interf
,
274 GDBusMethodInvocation
*invoc
,
279 gchar
*proposed_pretty_hostname
, *valid_pretty_hostname_buf
, *computed_static_hostname
;
280 const gchar
*bus_name
;
281 gboolean policykit_auth
, ret
, try_to_set
;
283 check_auth_result is_authed
;
286 config
= g_key_file_new();
287 proposed_pretty_hostname
= NULL
;
288 ret
= try_to_set
= FALSE
;
290 params
= g_dbus_method_invocation_get_parameters(invoc
);
291 g_variant_get(params
, "(sb)", &proposed_pretty_hostname
, &policykit_auth
);
292 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
294 /* verify caller has correct permissions via polkit */
295 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-pretty-hostname", policykit_auth
);
299 case AUTHORIZED_NATIVELY
:
300 case AUTHORIZED_BY_PROMPT
:
304 case UNAUTHORIZED_NATIVELY
:
305 case UNAUTHORIZED_FAILED_PROMPT
:
306 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set pretty hostname.");
310 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
313 case ERROR_BADACTION
:
314 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
319 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set pretty hostname for unknown reason.");
323 /* verify passed hostname's validity */
324 if(try_to_set
&& proposed_pretty_hostname
&& (valid_pretty_hostname_buf
= g_locale_to_utf8(proposed_pretty_hostname
, -1, 0, 0, NULL
))) {
326 check_length
= strnlen(valid_pretty_hostname_buf
, MAXHOSTNAMELEN
+ 1);
328 if(check_length
> MAXHOSTNAMELEN
) {
330 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ENAMETOOLONG", "Static hostname string exceeded maximum length.");
331 g_free(valid_pretty_hostname_buf
);
333 } else if(!(PRETTY_HOSTNAME
= valid_pretty_hostname_buf
)) {
335 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set pretty hostname for unknown reason.");
336 g_free(valid_pretty_hostname_buf
);
340 hostname1_set_pretty_hostname(hn1_passed_interf
, PRETTY_HOSTNAME
);
341 g_ptr_array_add(hostnamed_freeable
, valid_pretty_hostname_buf
);
342 hostname1_complete_set_pretty_hostname(hn1_passed_interf
, invoc
);
345 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)) {
347 g_key_file_set_string(config
, "hostnamed", "PRETTY_HOSTNAME", valid_pretty_hostname_buf
);
349 /* if((computed_static_hostname = g_hostname_to_ascii(PRETTY_HOSTNAME))) {
351 g_strdelimit(computed_static_hostname, " ", '-');
352 hostname1_set_static_hostname(hn1_passed_interf, computed_static_hostname);
353 STATIC_HOSTNAME = computed_static_hostname;
354 g_ptr_array_add(hostnamed_freeable, computed_static_hostname);
355 g_key_file_set_string(config, "hostnamed", "StaticHostname", computed_static_hostname);
362 g_key_file_save_to_file(config
, "/etc/machine-info", NULL
);
363 g_key_file_unref(config
);
369 on_handle_set_chassis(Hostname1
*hn1_passed_interf
,
370 GDBusMethodInvocation
*invoc
,
375 gchar
*proposed_chassis_name
, *valid_chassis_name_buf
;
376 const gchar
*bus_name
;
377 gboolean policykit_auth
, ret
, try_to_set
;
378 check_auth_result is_authed
;
381 config
= g_key_file_new();
382 proposed_chassis_name
= NULL
;
383 ret
= try_to_set
= FALSE
;
384 valid_chassis_name_buf
= (gchar
*)g_malloc0(8192);
386 params
= g_dbus_method_invocation_get_parameters(invoc
);
387 g_variant_get(params
, "(sb)", &proposed_chassis_name
, &policykit_auth
);
388 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
390 g_strlcpy(valid_chassis_name_buf
, proposed_chassis_name
, (gsize
)64);
392 /* verify caller has correct permissions via polkit */
393 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-chassis", policykit_auth
);
397 case AUTHORIZED_NATIVELY
:
398 case AUTHORIZED_BY_PROMPT
:
402 case UNAUTHORIZED_NATIVELY
:
403 case UNAUTHORIZED_FAILED_PROMPT
:
404 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set chassis type.");
408 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
411 case ERROR_BADACTION
:
412 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
417 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set chassis type for unknown reason.");
421 /* verify passed chassis type's validity */
422 if(try_to_set
&& proposed_chassis_name
) {
424 if(!is_valid_chassis_type(proposed_chassis_name
)) {
426 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'.");
427 g_free(valid_chassis_name_buf
);
429 } else if(!(CHASSIS
= valid_chassis_name_buf
)) {
431 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set chassis type for unknown reason.");
432 g_free(valid_chassis_name_buf
);
436 hostname1_set_chassis(hn1_passed_interf
, CHASSIS
);
437 g_ptr_array_add(hostnamed_freeable
, valid_chassis_name_buf
);
438 hostname1_complete_set_chassis(hn1_passed_interf
, invoc
);
440 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)) {
443 g_key_file_set_string(config
, "hostnamed", "ChassisType", valid_chassis_name_buf
);
449 g_key_file_save_to_file(config
, "/etc/machine-info", NULL
);
450 g_key_file_unref(config
);
456 on_handle_set_icon_name(Hostname1
*hn1_passed_interf
,
457 GDBusMethodInvocation
*invoc
,
462 gchar
*proposed_icon_name
, *valid_icon_name_buf
;
463 const gchar
*bus_name
;
464 gboolean policykit_auth
, ret
, try_to_set
;
465 check_auth_result is_authed
;
468 config
= g_key_file_new();
469 proposed_icon_name
= NULL
;
470 ret
= try_to_set
= FALSE
;
472 params
= g_dbus_method_invocation_get_parameters(invoc
);
473 g_variant_get(params
, "(sb)", &proposed_icon_name
, &policykit_auth
);
474 bus_name
= g_dbus_method_invocation_get_sender(invoc
);
476 /* verify caller has correct permissions via polkit */
477 is_authed
= polkit_try_auth(bus_name
, "org.freedesktop.hostname1.set-icon-name", policykit_auth
);
481 case AUTHORIZED_NATIVELY
:
482 case AUTHORIZED_BY_PROMPT
:
486 case UNAUTHORIZED_NATIVELY
:
487 case UNAUTHORIZED_FAILED_PROMPT
:
488 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EACCES", "Insufficient permissions to set icon name.");
492 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided bus name is invalid.");
495 case ERROR_BADACTION
:
496 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.EFAULT", "Provided action ID is invalid.");
501 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set icon name for unknown reason.");
505 /* verify passed chassis type's validity */
506 if(try_to_set
&& proposed_icon_name
) {
508 g_strlcpy(valid_icon_name_buf
, proposed_icon_name
, (gsize
)64);
510 if(!(ICON
= valid_icon_name_buf
)) {
512 g_dbus_method_invocation_return_dbus_error(invoc
, "org.freedesktop.hostname1.Error.ECANCELED", "Failed to set icon name for unknown reason.");
513 g_free(valid_icon_name_buf
);
517 hostname1_set_icon_name(hn1_passed_interf
, ICON
);
518 g_ptr_array_add(hostnamed_freeable
, valid_icon_name_buf
);
519 hostname1_complete_set_icon_name(hn1_passed_interf
, invoc
);
521 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)) {
524 g_key_file_set_string(config
, "hostnamed", "IconName", valid_icon_name_buf
);
530 g_key_file_save_to_file(config
, "/etc/machine-info", NULL
);
531 g_key_file_unref(config
);
536 /* note: all hostnamed/hostname1's properties are read-only,
537 * and do not need set_ functions, gdbus-codegen realized
538 * this from the XML and handled the to-be error of trying
539 * to set a read-only property's value
546 hostname_buf
= (gchar
*)g_malloc0(MAXHOSTNAMELEN
);
548 if(gethostname(hostname_buf
, MAXHOSTNAMELEN
))
549 return "localhost.home.network"; /* TODO bomb out here probably */
551 else if(!g_strcmp0(HOSTNAME
, hostname_buf
)) {
553 g_free(hostname_buf
);
557 g_ptr_array_add(hostnamed_freeable
, hostname_buf
);
558 HOSTNAME
= hostname_buf
;
559 hostname1_set_hostname(hostnamed_interf
, HOSTNAME
);
565 our_get_static_hostname() {
567 if(STATIC_HOSTNAME
&& g_strcmp0(STATIC_HOSTNAME
, ""))
568 return STATIC_HOSTNAME
;
572 return "localhost.home.network";
576 our_get_pretty_hostname() {
579 return PRETTY_HOSTNAME
;
590 return "desktop"; /* this leads to the most generic beheivor in the unlikely case its returned */
594 our_get_icon_name() {
603 our_get_kernel_name() {
612 our_get_kernel_version() {
621 our_get_kernel_release() {
630 our_get_os_cpename() {
632 /* XXX needs to parse /etc/os-release (fallback to /usr/local/lib/os-release) */
637 our_get_os_pretty_name() {
642 /* --- end method/property/dbus signal code, begin bus/name handlers --- */
644 static void hostnamed_on_bus_acquired(GDBusConnection
*conn
,
646 gpointer user_data
) {
648 g_printf("got bus/name, exporting %s's interface...\n", name
);
650 hostnamed_interf
= hostname1_skeleton_new();
652 /* attach function pointers to generated struct's method handlers */
653 g_signal_connect(hostnamed_interf
, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname
), NULL
);
654 g_signal_connect(hostnamed_interf
, "handle-set-static-hostname", G_CALLBACK(on_handle_set_static_hostname
), NULL
);
655 g_signal_connect(hostnamed_interf
, "handle-set-pretty-hostname", G_CALLBACK(on_handle_set_pretty_hostname
), NULL
);
656 g_signal_connect(hostnamed_interf
, "handle-set-chassis", G_CALLBACK(on_handle_set_chassis
), NULL
);
657 g_signal_connect(hostnamed_interf
, "handle-set-icon-name", G_CALLBACK(on_handle_set_icon_name
), NULL
);
659 /* set our properties before export */
660 hostname1_set_hostname(hostnamed_interf
, our_get_hostname());
661 hostname1_set_static_hostname(hostnamed_interf
, our_get_static_hostname());
662 hostname1_set_pretty_hostname(hostnamed_interf
, our_get_pretty_hostname());
663 hostname1_set_chassis(hostnamed_interf
, our_get_chassis());
664 hostname1_set_icon_name(hostnamed_interf
, our_get_icon_name());
665 hostname1_set_kernel_name(hostnamed_interf
, our_get_kernel_name());
666 hostname1_set_kernel_version(hostnamed_interf
, our_get_kernel_version());
667 hostname1_set_kernel_release(hostnamed_interf
, our_get_kernel_release());
668 hostname1_set_operating_system_cpename(hostnamed_interf
, our_get_os_cpename());
669 hostname1_set_operating_system_pretty_name(hostnamed_interf
, our_get_os_pretty_name());
671 if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(hostnamed_interf
),
673 "/org/freedesktop/hostname1",
676 g_printf("failed to export %s's interface!\n", name
); /* unusual edge case, TODO check errno */
677 hostnamed_mem_clean();
681 dbus_interface_exported
= TRUE
;
682 g_printf("exported %s's interface on the system bus...\n", name
);
686 static void hostnamed_on_name_acquired(GDBusConnection
*conn
,
688 gpointer user_data
) {
690 g_printf("success!\n");
693 static void hostnamed_on_name_lost(GDBusConnection
*conn
,
695 gpointer user_data
) {
699 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
);
700 hostnamed_mem_clean();
703 g_printf("lost name %s, exiting...\n", name
);
705 hostnamed_mem_clean();
708 /* --- end bus/name handlers, begin misc unix functions --- */
710 /* safe call to clean and then exit
711 * this stops our GMainLoop safely before letting main() return */
712 void hostnamed_mem_clean() {
714 g_printf("exiting...\n");
716 if(dbus_interface_exported
)
717 g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(hostnamed_interf
));
719 if(g_main_loop_is_running(hostnamed_loop
))
720 g_main_loop_quit(hostnamed_loop
);
724 /* wrapper for glib's unix signal handling; called only once if terminatating signal is raised against us */
725 gboolean
unix_sig_terminate_handler(gpointer data
) {
727 g_printf("caught SIGINT/HUP/TERM, exiting\n");
729 hostnamed_mem_clean();
730 return G_SOURCE_REMOVE
;
733 void set_signal_handlers() {
735 /* we don't care about its descriptor, we never need to unregister these */
736 g_unix_signal_add(SIGINT
, unix_sig_terminate_handler
, NULL
);
737 g_unix_signal_add(SIGHUP
, unix_sig_terminate_handler
, NULL
);
738 g_unix_signal_add(SIGTERM
, unix_sig_terminate_handler
, NULL
);
740 /* TODO: the "only once" guarantee only counts towards specific signals.
741 * make sure calling a SIGINT and SIGHUP doesn't cause term_handler()
742 * to be called twice */
747 hostnamed_freeable
= g_ptr_array_new();
749 /* TODO: check for valid, writable config at init. if no, complain to `make install` */
751 get_bsd_hostname("adsf"); /* TODO KILL ME */
753 CHASSIS
= ICON
= OS_CPENAME
= 0;
754 KERN_NAME
= KERN_RELEASE
= KERN_VERS
= 0;
755 HOSTNAME
= STATIC_HOSTNAME
= PRETTY_HOSTNAME
= NULL
;
757 set_signal_handlers();
759 if(!determine_chassis_and_icon() || !set_uname_properties() || !set_names())
762 hostnamed_loop
= g_main_loop_new(NULL
, TRUE
);
764 bus_descriptor
= g_bus_own_name(G_BUS_TYPE_SYSTEM
,
765 "org.freedesktop.hostname1",
766 G_BUS_NAME_OWNER_FLAGS_NONE
,
767 hostnamed_on_bus_acquired
,
768 hostnamed_on_name_acquired
,
769 hostnamed_on_name_lost
,
773 g_main_loop_run(hostnamed_loop
);
774 /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
775 g_main_loop_unref(hostnamed_loop
);
777 /* guaranteed unownable */
778 g_bus_unown_name(bus_descriptor
);
780 /* at this point no operations can occur with our data, it is safe to free it + its container */
781 g_ptr_array_free(hostnamed_freeable
, TRUE
);
786 gboolean
set_names() {
789 gchar
*hostname_buf
, *static_hostname_buf
, *pretty_hostname_buf
;
791 size_t hostname_divider
;
793 hostname_buf
= (gchar
*) g_malloc0(MAXHOSTNAMELEN
);
794 static_hostname_buf
= (gchar
*) g_malloc0(4096);
795 pretty_hostname_buf
= (gchar
*) g_malloc0(4096);
797 config
= g_key_file_new();
799 g_ptr_array_add(hostnamed_freeable
, hostname_buf
);
800 g_ptr_array_add(hostnamed_freeable
, static_hostname_buf
);
801 g_ptr_array_add(hostnamed_freeable
, pretty_hostname_buf
);
803 /* (2) set HOSTNAME */
804 if(gethostname(hostname_buf
, MAXHOSTNAMELEN
) || !g_strcmp0(hostname_buf
, ""))
805 HOSTNAME
= "localhost";
807 HOSTNAME
= hostname_buf
;
809 /* this bit gets you the /etc/myname style hostname
810 hostname_divider = strcspn(hostname_buf, ".");
811 strncpy(ret, hostname_buf, hostname_divider); */
813 /* (3) set PRETTY_HOSTNAME */
814 if(g_key_file_load_from_file(config
, "/etc/machine-info", G_KEY_FILE_NONE
, NULL
)
815 && (pretty_hostname_buf
= g_key_file_get_value(config
, "hostnamed", "PRETTY_HOSTNAME", NULL
)))
816 PRETTY_HOSTNAME
= pretty_hostname_buf
;
818 PRETTY_HOSTNAME
= "";
821 /* (4) set STATIC_HOSTNAME */
822 if((static_hostname_buf
= g_key_file_get_value(config
, "hostnamed", "STATIC_HOSTNAME", NULL
)))
823 STATIC_HOSTNAME
= static_hostname_buf
;
826 STATIC_HOSTNAME
= "";
829 g_key_file_unref(config
);
831 return (HOSTNAME
&& STATIC_HOSTNAME
&& PRETTY_HOSTNAME
) ? TRUE
: FALSE
;
834 gboolean
set_uname_properties() {
841 KERN_NAME
= (gchar
*)g_malloc0(sizeof(un
.sysname
));
842 g_ptr_array_add(hostnamed_freeable
, KERN_NAME
);
843 g_strlcpy(KERN_NAME
, un
.sysname
, sizeof(un
.sysname
));
845 KERN_RELEASE
= (gchar
*)g_malloc0(sizeof(un
.release
));
846 g_ptr_array_add(hostnamed_freeable
, KERN_RELEASE
);
847 g_strlcpy(KERN_RELEASE
, un
.release
, sizeof(un
.release
));
849 KERN_VERS
= (gchar
*)g_malloc0(sizeof(un
.version
));
850 g_ptr_array_add(hostnamed_freeable
, KERN_VERS
);
851 g_strlcpy(KERN_VERS
, un
.version
, sizeof(un
.version
));
856 gboolean
determine_chassis_and_icon() {
858 const size_t bufsize
= 4096;
860 char *hwproduct
, *hwmodel
, *hwvendor
, *hwmachine
;
861 size_t hwproduct_size
, hwmodel_size
, hwvendor_size
, hwmachine_size
;
862 int hwproduct_name
[2], hwmodel_name
[2], hwvendor_name
[2], hwmachine_name
[2];
864 gboolean UNSURE_CHASSIS_FLAG
, UNSURE_ICON_FLAG
;
866 hwproduct_size
= hwmodel_size
= hwvendor_size
= hwmachine_size
= bufsize
;
867 UNSURE_CHASSIS_FLAG
= UNSURE_ICON_FLAG
= FALSE
;
870 hwproduct
= (char*)g_malloc0(4096);
871 hwmodel
= (char*)g_malloc0(4096);
872 hwvendor
= (char*)g_malloc0(4096);
873 hwmachine
= (char*)g_malloc0(4096);
875 g_ptr_array_add(hostnamed_freeable
, hwproduct
);
876 g_ptr_array_add(hostnamed_freeable
, hwmodel
);
877 g_ptr_array_add(hostnamed_freeable
, hwvendor
);
878 g_ptr_array_add(hostnamed_freeable
, hwmachine
);
880 hwproduct_name
[0] = CTL_HW
;
881 hwproduct_name
[1] = HW_PRODUCT
;
883 hwmodel_name
[0] = CTL_HW
;
884 hwmodel_name
[1] = HW_MODEL
;
886 hwvendor_name
[0] = CTL_HW
;
887 hwvendor_name
[1] = HW_VENDOR
;
889 hwmachine_name
[0] = CTL_HW
;
890 hwmachine_name
[1] = HW_MACHINE
;
892 /* pass NULL buffer to check size first, then pass hw to be filled according to freshly-set hw_size */
893 if(-1 == sysctl(hwproduct_name
, 2, NULL
, &hwproduct_size
, NULL
, 0) || -1 == sysctl(hwproduct_name
, 2, hwproduct
, &hwproduct_size
, NULL
, 0))
896 if(-1 == sysctl(hwmodel_name
, 2, NULL
, &hwmodel_size
, NULL
, 0) || -1 == sysctl(hwmodel_name
, 2, hwmodel
, &hwmodel_size
, NULL
, 0))
899 if(-1 == sysctl(hwvendor_name
, 2, NULL
, &hwvendor_size
, NULL
, 0) || -1 == sysctl(hwvendor_name
, 2, hwvendor
, &hwvendor_size
, NULL
, 0))
902 if(-1 == sysctl(hwmachine_name
, 2, NULL
, &hwmachine_size
, NULL
, 0) || -1 == sysctl(hwmachine_name
, 2, hwmachine
, &hwmachine_size
, NULL
, 0))
905 /* TODO: test for laptop, if not, dmidecode for desktop vs. server
906 * probably move this code to vm test func and set a global after running it early, once */
908 for(; i
< G_N_ELEMENTS(chassis_indicator_table
); i
++) {
909 if(strcasestr(hwproduct
, chassis_indicator_table
[i
].match_string
)
910 || strcasestr(hwmodel
, chassis_indicator_table
[i
].match_string
)
911 || strcasestr(hwvendor
, chassis_indicator_table
[i
].match_string
)) {
913 if(!UNSURE_CHASSIS_FLAG
&& chassis_indicator_table
[i
].chassis
) {
915 UNSURE_CHASSIS_FLAG
= chassis_indicator_table
[i
].chassis_precedence
;
916 CHASSIS
= chassis_indicator_table
[i
].chassis
;
919 if(!UNSURE_ICON_FLAG
&& chassis_indicator_table
[i
].icon
) {
921 UNSURE_ICON_FLAG
= chassis_indicator_table
[i
].icon_precedence
;
922 ICON
= chassis_indicator_table
[i
].icon
;
927 if(up_native_is_laptop()) {
932 ICON
= "input-touchpad"; /* TODO pull an icon package that actually has the icons we're looking for */
934 } else if(is_server(hwmachine
)) {
939 ICON
= "uninterruptible-power-supply";
941 } else if(!CHASSIS
|| !ICON
) {
949 return (CHASSIS
&& ICON
);
952 gboolean
is_server(gchar
*arch
) {
956 for(; i
< G_N_ELEMENTS(server_archs
); i
++)
957 if(strcasestr(arch
, server_archs
[i
]))
963 gboolean
up_native_is_laptop() {
965 struct apm_power_info bstate
;
966 struct sensordev acpiac
;
968 if (up_native_get_sensordev("acpiac0", &acpiac
))
971 if (-1 == ioctl(up_apm_get_fd(), APM_IOC_GETPOWER
, &bstate
))
972 g_error("ioctl on apm fd failed : %s", g_strerror(errno
));
974 return bstate
.ac_state
!= APM_AC_UNKNOWN
;
977 int up_apm_get_fd() {
979 static int apm_fd
= 0;
983 g_debug("apm_fd is not initialized yet, opening");
986 if((apm_fd
= open("/dev/apm", O_RDONLY
)) == -1) {
987 if(errno
!= ENXIO
&& errno
!= ENOENT
)
988 g_error("cannot open device file");
995 gboolean
up_native_get_sensordev(const char * id
, struct sensordev
* snsrdev
) {
998 size_t sdlen
= sizeof(struct sensordev
);
999 int mib
[] = {CTL_HW
, HW_SENSORS
, 0, 0 ,0};
1001 for (devn
= 0 ; ; devn
++) {
1003 if(sysctl(mib
, 3, snsrdev
, &sdlen
, NULL
, 0) == -1) {
1010 if (!strcmp(snsrdev
->xname
, id
))
1017 static gboolean
is_valid_chassis_type(gchar
*test
) {
1019 if(!g_strcmp0(test
, "desktop") ||
1020 !g_strcmp0(test
, "laptop") ||
1021 !g_strcmp0(test
, "server") ||
1022 !g_strcmp0(test
, "tablet") ||
1023 !g_strcmp0(test
, "handset") ||
1024 !g_strcmp0(test
, "vm") ||
1025 !g_strcmp0(test
, "container") ||
1026 !g_strcmp0(test
, ""))
1032 /* returns a proper, bsd-style FQDN hostname safe to write to /etc/myname
1033 * if proposed_hostname does not contain an appended domain, the one in /etc/myname is substituted.
1034 * failing that, DEFAULT_DOMAIN is used. NULL if proposed_hostname is invalid
1035 * returns string that should be g_free()'d, or NULL if passed an invalid hostname */
1036 static gchar
*get_bsd_hostname(gchar
*proposed_hostname
) {
1038 gchar
*bsd_hostname
, *ascii_translated_hostname
, **myname_contents
, *passed_domain
, *temp_buf
;
1039 size_t domain_len
, check_len
;
1040 gboolean read_result
;
1042 g_strdelimit(proposed_hostname
, "`~!@#$%^&*()_=+[{]}|:;'\"\\", '-');
1044 ascii_translated_hostname
= g_hostname_to_ascii(proposed_hostname
);
1045 check_len
= strnlen(ascii_translated_hostname
, MAXHOSTNAMELEN
);
1047 if(!ascii_translated_hostname
|| !check_len
|| check_len
> MAXHOSTNAMELEN
|| !g_strcmp0("", ascii_translated_hostname
) || !g_strcmp0(".", ascii_translated_hostname
)) {
1049 bsd_hostname
= NULL
;
1050 passed_domain
= NULL
;
1051 myname_contents
= NULL
;
1053 } else if((passed_domain
= has_domain(ascii_translated_hostname
))) {
1055 bsd_hostname
= (gchar
*) g_malloc0(MAXHOSTNAMELEN
);
1056 g_strlcpy(bsd_hostname
, ascii_translated_hostname
, MAXHOSTNAMELEN
);
1058 passed_domain
= NULL
;
1059 myname_contents
= NULL
;
1063 myname_contents
= (gchar
**) g_malloc0(MAXHOSTNAMELEN
* 2);
1064 read_result
= g_file_get_contents(OS_HOSTNAME_PATH
, myname_contents
, NULL
, NULL
);
1066 if(read_result
&& (passed_domain
= has_domain(myname_contents
[0]))) {
1068 domain_len
= strnlen(passed_domain
, MAXHOSTNAMELEN
);
1070 if((domain_len
+ check_len
) > MAXHOSTNAMELEN
)
1071 bsd_hostname
= NULL
;
1073 bsd_hostname
= g_strconcat(ascii_translated_hostname
, passed_domain
, NULL
);
1075 } else if(myname_contents
[0]) {
1077 g_printf("%s does not contain a proper FQDN! this is a significant error on BSD machines, otherwise OK.\nfalling back to default domain, '%s'\n", OS_HOSTNAME_PATH
, DEFAULT_DOMAIN
);
1079 domain_len
= strnlen(DEFAULT_DOMAIN
, MAXHOSTNAMELEN
);
1081 if((domain_len
+ check_len
) > MAXHOSTNAMELEN
)
1082 bsd_hostname
= NULL
;
1084 bsd_hostname
= g_strconcat(ascii_translated_hostname
, DEFAULT_DOMAIN
, NULL
);
1088 g_printf("could not read hostname at %s, this is a major error\n", OS_HOSTNAME_PATH
);
1089 bsd_hostname
= NULL
;
1090 passed_domain
= (gchar
*) g_malloc0(MAXHOSTNAMELEN
);
1095 g_free(passed_domain
);
1097 g_free(myname_contents
);
1099 if(bsd_hostname
&& !strchr(bsd_hostname
, '\n')) {
1101 temp_buf
= bsd_hostname
;
1102 bsd_hostname
= g_strconcat(bsd_hostname
, "\n", NULL
);
1106 return bsd_hostname
;
1109 /* returns NULL if no domain, otherwise append-appropriate domain string you must g_free()
1110 * i.e. has_domain("foo.bar.com") returns ".bar.com"
1111 * only pass g_hostname_to_ascii'd strings */
1112 static gchar
*has_domain(const gchar
*test
) {
1114 size_t hostname_len
, full_len
;
1117 hostname_len
= strcspn(test
, ".");
1118 full_len
= strnlen(test
, MAXHOSTNAMELEN
);
1120 if(full_len
== hostname_len
)
1123 ret
= (gchar
*) g_malloc0(MAXHOSTNAMELEN
);
1124 g_strlcpy(ret
, &test
[hostname_len
], MAXHOSTNAMELEN
);