D-Bus: dbus-server-socket.c Source File

D-Bus 1.16.2

dbus-server-socket.c
1/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2/* dbus-server-socket.c Server implementation for sockets
3 *
4 * Copyright (C) 2002, 2003, 2004, 2006 Red Hat Inc.
5 *
6 * SPDX-License-Identifier: AFL-2.1 OR GPL-2.0-or-later
7 *
8 * Licensed under the Academic Free License version 2.1
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 *
24 */
25
26#include <config.h>
27#include "dbus-internals.h"
28#include "dbus-server-socket.h"
29#include "dbus-transport-socket.h"
30#include "dbus-connection-internal.h"
31#include "dbus-memory.h"
32#include "dbus-nonce.h"
33#include "dbus-string.h"
34
46 typedef struct DBusServerSocket DBusServerSocket;
47
52 struct DBusServerSocket
53{
54 DBusServer base;
55 int n_fds;
56 DBusSocket *fds;
57 DBusWatch **watch;
58 char *socket_name;
59 DBusNonceFile *noncefile;
60};
61
62static void
63socket_finalize (DBusServer *server)
64{
65 DBusServerSocket *socket_server = (DBusServerSocket*) server;
66 int i;
67
68 _dbus_server_finalize_base (server);
69
70 for (i = 0 ; i < socket_server->n_fds ; i++)
71 if (socket_server->watch[i])
72 {
73 _dbus_watch_unref (socket_server->watch[i]);
74 socket_server->watch[i] = NULL;
75 }
76
77 dbus_free (socket_server->fds);
78 dbus_free (socket_server->watch);
79 dbus_free (socket_server->socket_name);
80 _dbus_noncefile_delete (&socket_server->noncefile, NULL);
81 dbus_free (server);
82}
83
84/* Return value is just for memory, not other failures. */
85static dbus_bool_t
86handle_new_client_fd_and_unlock (DBusServer *server,
87 DBusSocket client_fd)
88{
89 DBusConnection *connection;
90 DBusTransport *transport;
91 DBusNewConnectionFunction new_connection_function;
92 void *new_connection_data;
93
94 _dbus_verbose ("Creating new client connection with fd %" DBUS_SOCKET_FORMAT "\n",
95 _dbus_socket_printable (client_fd));
96
97 HAVE_LOCK_CHECK (server);
98
99 if (!_dbus_set_socket_nonblocking (client_fd, NULL))
100 {
101 SERVER_UNLOCK (server);
102 return TRUE;
103 }
104
105 transport = _dbus_transport_new_for_socket (client_fd, &server->guid_hex, NULL);
106 if (transport == NULL)
107 {
108 _dbus_close_socket (&client_fd, NULL);
109 SERVER_UNLOCK (server);
110 return FALSE;
111 }
112
113 if (!_dbus_transport_set_auth_mechanisms (transport,
114 (const char **) server->auth_mechanisms))
115 {
116 _dbus_transport_unref (transport);
117 SERVER_UNLOCK (server);
118 return FALSE;
119 }
120
121 /* note that client_fd is now owned by the transport, and will be
122 * closed on transport disconnection/finalization
123 */
124
125 connection = _dbus_connection_new_for_transport (transport);
126 _dbus_transport_unref (transport);
127 transport = NULL; /* now under the connection lock */
128
129 if (connection == NULL)
130 {
131 SERVER_UNLOCK (server);
132 return FALSE;
133 }
134
135 /* See if someone wants to handle this new connection, self-referencing
136 * for paranoia.
137 */
138 new_connection_function = server->new_connection_function;
139 new_connection_data = server->new_connection_data;
140
141 _dbus_server_ref_unlocked (server);
142 SERVER_UNLOCK (server);
143
144 if (new_connection_function)
145 {
146 (* new_connection_function) (server, connection,
147 new_connection_data);
148 }
149 dbus_server_unref (server);
150
151 /* If no one grabbed a reference, the connection will die. */
152 _dbus_connection_close_if_only_one_ref (connection);
153 dbus_connection_unref (connection);
154
155 return TRUE;
156}
157
158static dbus_bool_t
159socket_handle_watch (DBusWatch *watch,
160 unsigned int flags,
161 void *data)
162{
163 DBusServer *server = data;
164 DBusServerSocket *socket_server = data;
165
166#ifndef DBUS_DISABLE_ASSERT
167 int i;
168 dbus_bool_t found = FALSE;
169#endif
170
171 SERVER_LOCK (server);
172
173#ifndef DBUS_DISABLE_ASSERT
174 for (i = 0 ; i < socket_server->n_fds ; i++)
175 {
176 if (socket_server->watch[i] == watch)
177 {
178 found = TRUE;
179 break;
180 }
181 }
182 _dbus_assert (found);
183#endif
184
185 _dbus_verbose ("Handling client connection, flags 0x%x\n", flags);
186
187 if (flags & DBUS_WATCH_READABLE)
188 {
189 DBusSocket client_fd;
190 DBusSocket listen_fd;
191 int saved_errno;
192
193 listen_fd = _dbus_watch_get_socket (watch);
194
195 if (socket_server->noncefile)
196 client_fd = _dbus_accept_with_noncefile (listen_fd, socket_server->noncefile);
197 else
198 client_fd = _dbus_accept (listen_fd);
199
200 saved_errno = _dbus_save_socket_errno ();
201
202 if (!_dbus_socket_is_valid (client_fd))
203 {
204 /* EINTR handled for us */
205
206 if (_dbus_get_is_errno_eagain_or_ewouldblock (saved_errno))
207 _dbus_verbose ("No client available to accept after all\n");
208 else
209 _dbus_verbose ("Failed to accept a client connection: %s\n",
210 _dbus_strerror (saved_errno));
211
212 SERVER_UNLOCK (server);
213 }
214 else
215 {
216 if (!handle_new_client_fd_and_unlock (server, client_fd))
217 _dbus_verbose ("Rejected client connection due to lack of memory\n");
218 }
219 }
220
221 if (flags & DBUS_WATCH_ERROR)
222 _dbus_verbose ("Error on server listening socket\n");
223
224 if (flags & DBUS_WATCH_HANGUP)
225 _dbus_verbose ("Hangup on server listening socket\n");
226
227 return TRUE;
228}
229
230static void
231socket_disconnect (DBusServer *server)
232{
233 DBusServerSocket *socket_server = (DBusServerSocket*) server;
234 int i;
235
236 HAVE_LOCK_CHECK (server);
237
238 for (i = 0 ; i < socket_server->n_fds ; i++)
239 {
240 if (socket_server->watch[i])
241 {
242 _dbus_server_remove_watch (server,
243 socket_server->watch[i]);
244 _dbus_watch_invalidate (socket_server->watch[i]);
245 _dbus_watch_unref (socket_server->watch[i]);
246 socket_server->watch[i] = NULL;
247 }
248
249 if (_dbus_socket_is_valid (socket_server->fds[i]))
250 _dbus_close_socket (&socket_server->fds[i], NULL);
251 }
252
253 if (socket_server->socket_name != NULL)
254 {
255 DBusString tmp;
256 _dbus_string_init_const (&tmp, socket_server->socket_name);
257 _dbus_delete_file (&tmp, NULL);
258 }
259
260 if (server->published_address)
261 _dbus_daemon_unpublish_session_bus_address();
262
263 HAVE_LOCK_CHECK (server);
264}
265
266static const DBusServerVTable socket_vtable = {
267 socket_finalize,
268 socket_disconnect
269};
270
287 DBusServer*
288_dbus_server_new_for_socket (DBusSocket *fds,
289 int n_fds,
290 const DBusString *address,
291 DBusNonceFile *noncefile,
292 DBusError *error)
293{
294 DBusServerSocket *socket_server;
295 DBusServer *server;
296 int i;
297
298 socket_server = dbus_new0 (DBusServerSocket, 1);
299 if (socket_server == NULL)
300 goto failed;
301
302 socket_server->noncefile = noncefile;
303
304 socket_server->fds = dbus_new (DBusSocket, n_fds);
305 if (!socket_server->fds)
306 goto failed;
307
308 socket_server->watch = dbus_new0 (DBusWatch *, n_fds);
309 if (!socket_server->watch)
310 goto failed;
311
312 for (i = 0 ; i < n_fds ; i++)
313 {
314 DBusWatch *watch;
315
316 watch = _dbus_watch_new (_dbus_socket_get_pollable (fds[i]),
317 DBUS_WATCH_READABLE,
318 TRUE,
319 socket_handle_watch, socket_server,
320 NULL);
321 if (watch == NULL)
322 goto failed;
323
324 socket_server->n_fds++;
325 socket_server->fds[i] = fds[i];
326 socket_server->watch[i] = watch;
327 }
328
329 if (!_dbus_server_init_base (&socket_server->base,
330 &socket_vtable, address,
331 error))
332 goto failed;
333
334 server = (DBusServer*)socket_server;
335
336 SERVER_LOCK (server);
337
338 for (i = 0 ; i < n_fds ; i++)
339 {
340 if (!_dbus_server_add_watch (&socket_server->base,
341 socket_server->watch[i]))
342 {
343 int j;
344
345 /* The caller is still responsible for closing the fds until
346 * we return successfully, so don't let socket_disconnect()
347 * close them */
348 for (j = 0; j < n_fds; j++)
349 _dbus_socket_invalidate (&socket_server->fds[j]);
350
351 /* socket_disconnect() will try to remove all the watches;
352 * make sure it doesn't see the ones that weren't even added
353 * yet */
354 for (j = i; j < n_fds; j++)
355 {
356 _dbus_watch_invalidate (socket_server->watch[j]);
357 _dbus_watch_unref (socket_server->watch[j]);
358 socket_server->watch[j] = NULL;
359 }
360
361 _dbus_server_disconnect_unlocked (server);
362 SERVER_UNLOCK (server);
363 _dbus_server_finalize_base (&socket_server->base);
364 goto failed;
365 }
366 }
367
368 SERVER_UNLOCK (server);
369
370 _dbus_server_trace_ref (&socket_server->base, 0, 1, "new_for_socket");
371 return (DBusServer*) socket_server;
372
373failed:
374 if (socket_server != NULL)
375 {
376 if (socket_server->watch != NULL)
377 {
378 for (i = 0; i < n_fds; i++)
379 {
380 if (socket_server->watch[i] != NULL)
381 {
382 _dbus_watch_invalidate (socket_server->watch[i]);
383 _dbus_watch_unref (socket_server->watch[i]);
384 socket_server->watch[i] = NULL;
385 }
386 }
387 }
388
389 dbus_free (socket_server->watch);
390 dbus_free (socket_server->fds);
391 dbus_free (socket_server);
392 }
393
394 if (error != NULL && !dbus_error_is_set (error))
395 _DBUS_SET_OOM (error);
396
397 return NULL;
398}
399
419 DBusServer*
420_dbus_server_new_for_tcp_socket (const char *host,
421 const char *bind,
422 const char *port,
423 const char *family,
424 DBusError *error,
425 dbus_bool_t use_nonce)
426{
427 DBusServer *server = NULL;
428 DBusSocket *listen_fds = NULL;
429 int nlisten_fds = 0, i;
430 DBusString address = _DBUS_STRING_INIT_INVALID;
431 DBusString host_str; /* Initialized as const later, not freed */
432 DBusString port_str = _DBUS_STRING_INIT_INVALID;
433 DBusNonceFile *noncefile = NULL;
434 const char *family_used = NULL;
435
436 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
437
438 if (!_dbus_string_init (&address))
439 {
440 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
441 goto failed;
442 }
443
444 if (!_dbus_string_init (&port_str))
445 {
446 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
447 goto failed;
448 }
449
450 if (host == NULL)
451 host = "localhost";
452
453 if (port == NULL)
454 port = "0";
455
456 if (bind == NULL)
457 bind = host;
458 else if (strcmp (bind, "*") == 0)
459 bind = NULL;
460
461 nlisten_fds =_dbus_listen_tcp_socket (bind, port, family,
462 &port_str,
463 &family_used,
464 &listen_fds, error);
465 if (nlisten_fds <= 0)
466 {
467 _DBUS_ASSERT_ERROR_IS_SET(error);
468 goto failed;
469 }
470
471 _dbus_string_init_const (&host_str, host);
472 if (!_dbus_string_append (&address, use_nonce ? "nonce-tcp:host=" : "tcp:host=") ||
473 !_dbus_address_append_escaped (&address, &host_str) ||
474 !_dbus_string_append (&address, ",port=") ||
475 !_dbus_string_append (&address, _dbus_string_get_const_data(&port_str)))
476 {
477 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
478 goto failed;
479 }
480 if (family_used &&
481 (!_dbus_string_append (&address, ",family=") ||
482 !_dbus_string_append (&address, family_used)))
483 {
484 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
485 goto failed;
486 }
487
488 if (use_nonce)
489 {
490 if (!_dbus_noncefile_create (&noncefile, error))
491 goto failed;
492
493 if (!_dbus_string_append (&address, ",noncefile=") ||
494 !_dbus_address_append_escaped (&address, _dbus_noncefile_get_path (noncefile)))
495 {
496 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
497 goto failed;
498 }
499 }
500
501 server = _dbus_server_new_for_socket (listen_fds, nlisten_fds, &address, noncefile, error);
502 if (server == NULL)
503 goto failed;
504
505 /* server has taken ownership of noncefile and the fds in listen_fds */
506 _dbus_string_free (&port_str);
507 _dbus_string_free (&address);
508 dbus_free(listen_fds);
509
510 return server;
511
512failed:
513 _dbus_noncefile_delete (&noncefile, NULL);
514
515 if (listen_fds != NULL)
516 {
517 for (i = 0; i < nlisten_fds; i++)
518 _dbus_close_socket (&listen_fds[i], NULL);
519 dbus_free (listen_fds);
520 }
521
522 _dbus_string_free (&port_str);
523 _dbus_string_free (&address);
524 return NULL;
525}
526
539DBusServerListenResult
540_dbus_server_listen_socket (DBusAddressEntry *entry,
541 DBusServer **server_p,
542 DBusError *error)
543{
544 const char *method;
545
546 *server_p = NULL;
547
548 method = dbus_address_entry_get_method (entry);
549
550 if (strcmp (method, "tcp") == 0 || strcmp (method, "nonce-tcp") == 0)
551 {
552 const char *host;
553 const char *port;
554 const char *bind;
555 const char *family;
556
557 host = dbus_address_entry_get_value (entry, "host");
558 bind = dbus_address_entry_get_value (entry, "bind");
559 port = dbus_address_entry_get_value (entry, "port");
560 family = dbus_address_entry_get_value (entry, "family");
561
562 *server_p = _dbus_server_new_for_tcp_socket (host, bind, port,
563 family, error, strcmp (method, "nonce-tcp") == 0 ? TRUE : FALSE);
564
565 if (*server_p)
566 {
567 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
568 return DBUS_SERVER_LISTEN_OK;
569 }
570 else
571 {
572 _DBUS_ASSERT_ERROR_IS_SET(error);
573 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
574 }
575 }
576 else
577 {
578 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
579 return DBUS_SERVER_LISTEN_NOT_HANDLED;
580 }
581}
582
592void
593_dbus_server_socket_own_filename (DBusServer *server,
594 char *filename)
595{
596 DBusServerSocket *socket_server = (DBusServerSocket*) server;
597
598 socket_server->socket_name = filename;
599}
600
609 DBusServer*
610_dbus_server_new_for_domain_socket (const char *path,
611 dbus_bool_t abstract,
612 DBusError *error)
613{
614 DBusServer *server;
615 DBusSocket listen_fd;
616 DBusString address;
617 char *path_copy;
618 DBusString path_str;
619
620 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
621
622 if (!_dbus_string_init (&address))
623 {
624 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
625 return NULL;
626 }
627
628 _dbus_string_init_const (&path_str, path);
629 if ((abstract &&
630 !_dbus_string_append (&address, "unix:abstract=")) ||
631 (!abstract &&
632 !_dbus_string_append (&address, "unix:path=")) ||
633 !_dbus_address_append_escaped (&address, &path_str))
634 {
635 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
636 goto failed_0;
637 }
638
639 if (abstract)
640 {
641 path_copy = NULL;
642 }
643 else
644 {
645 path_copy = _dbus_strdup (path);
646 if (path_copy == NULL)
647 {
648 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
649 goto failed_0;
650 }
651 }
652
653 listen_fd = _dbus_listen_unix_socket (path, abstract, error);
654
655 if (!_dbus_socket_is_valid (listen_fd))
656 {
657 _DBUS_ASSERT_ERROR_IS_SET (error);
658 goto failed_1;
659 }
660
661 server = _dbus_server_new_for_socket (&listen_fd, 1, &address, 0, error);
662 if (server == NULL)
663 {
664 goto failed_2;
665 }
666
667 if (path_copy != NULL)
668 _dbus_server_socket_own_filename(server, path_copy);
669
670 _dbus_string_free (&address);
671
672 return server;
673
674 failed_2:
675 _dbus_close_socket (&listen_fd, NULL);
676 failed_1:
677 dbus_free (path_copy);
678 failed_0:
679 _dbus_string_free (&address);
680
681 return NULL;
682}
683
692static DBusServer *
693_dbus_server_new_for_dir (const char *dir,
694 DBusError *error)
695{
696 DBusServer *server;
697 DBusString full_path;
698 DBusString filename;
699
700 if (!_dbus_string_init (&full_path))
701 {
702 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
703 return NULL;
704 }
705
706 if (!_dbus_string_init (&filename))
707 {
708 _dbus_string_free (&full_path);
709 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
710 return NULL;
711 }
712
713 if (!_dbus_string_append (&filename, "dbus-"))
714 {
715 _dbus_string_free (&full_path);
716 _dbus_string_free (&filename);
717 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
718 return NULL;
719 }
720
721 if (!_dbus_generate_random_ascii (&filename, 10, error))
722 {
723 _dbus_string_free (&full_path);
724 _dbus_string_free (&filename);
725 return NULL;
726 }
727
728 if (!_dbus_string_append (&full_path, dir) ||
729 !_dbus_concat_dir_and_file (&full_path, &filename))
730 {
731 _dbus_string_free (&full_path);
732 _dbus_string_free (&filename);
733 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
734 return NULL;
735 }
736
737 server =
738 _dbus_server_new_for_domain_socket (_dbus_string_get_const_data (&full_path),
739 FALSE, /* not abstract */
740 error);
741
742 _dbus_string_free (&full_path);
743 _dbus_string_free (&filename);
744
745 return server;
746}
747
760DBusServerListenResult
761_dbus_server_listen_unix_socket (DBusAddressEntry *entry,
762 DBusServer **server_p,
763 DBusError *error)
764{
765 const char *method;
766
767 *server_p = NULL;
768
769 method = dbus_address_entry_get_method (entry);
770
771 if (strcmp (method, "unix") == 0)
772 {
773 const char *path = dbus_address_entry_get_value (entry, "path");
774 const char *dir = dbus_address_entry_get_value (entry, "dir");
775 const char *tmpdir = dbus_address_entry_get_value (entry, "tmpdir");
776 const char *abstract = dbus_address_entry_get_value (entry, "abstract");
777 const char *runtime = dbus_address_entry_get_value (entry, "runtime");
778 int mutually_exclusive_modes = 0;
779
780 mutually_exclusive_modes = (path != NULL) + (tmpdir != NULL) +
781 (abstract != NULL) + (runtime != NULL) + (dir != NULL);
782
783 if (mutually_exclusive_modes < 1)
784 {
785 _dbus_set_bad_address(error, "unix",
786 "path or tmpdir or abstract or runtime or dir",
787 NULL);
788 return DBUS_SERVER_LISTEN_BAD_ADDRESS;
789 }
790
791 if (mutually_exclusive_modes > 1)
792 {
793 _dbus_set_bad_address(error, NULL, NULL,
794 "cannot specify two of \"path\", \"tmpdir\", \"abstract\", \"runtime\" and \"dir\" at the same time");
795 return DBUS_SERVER_LISTEN_BAD_ADDRESS;
796 }
797
798 if (runtime != NULL)
799 {
800 DBusString full_path;
801 DBusString filename;
802 const char *runtimedir;
803
804 if (strcmp (runtime, "yes") != 0)
805 {
806 _dbus_set_bad_address(error, NULL, NULL,
807 "if given, the only value allowed for \"runtime\" is \"yes\"");
808 return DBUS_SERVER_LISTEN_BAD_ADDRESS;
809 }
810
811 runtimedir = _dbus_getenv ("XDG_RUNTIME_DIR");
812
813 if (runtimedir == NULL)
814 {
815 dbus_set_error (error,
816 DBUS_ERROR_NOT_SUPPORTED, "\"XDG_RUNTIME_DIR\" is not set");
817 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
818 }
819
820 _dbus_string_init_const (&filename, "bus");
821
822 if (!_dbus_string_init (&full_path))
823 {
824 _DBUS_SET_OOM (error);
825 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
826 }
827
828 if (!_dbus_string_append (&full_path, runtimedir) ||
829 !_dbus_concat_dir_and_file (&full_path, &filename))
830 {
831 _dbus_string_free (&full_path);
832 _DBUS_SET_OOM (error);
833 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
834 }
835
836 /* We can safely use filesystem sockets in the runtime directory,
837 * and they are preferred because they can be bind-mounted between
838 * Linux containers. */
839 *server_p = _dbus_server_new_for_domain_socket (
840 _dbus_string_get_const_data (&full_path),
841 FALSE, error);
842
843 _dbus_string_free (&full_path);
844 }
845 else if (tmpdir != NULL || dir != NULL)
846 {
847 /* tmpdir is now equivalent to dir. Previously it would try to
848 * use an abstract socket. */
849 if (tmpdir != NULL)
850 dir = tmpdir;
851
852 *server_p = _dbus_server_new_for_dir (dir, error);
853 }
854 else
855 {
856 if (path)
857 *server_p = _dbus_server_new_for_domain_socket (path, FALSE, error);
858 else
859 *server_p = _dbus_server_new_for_domain_socket (abstract, TRUE, error);
860 }
861
862 if (*server_p != NULL)
863 {
864 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
865 return DBUS_SERVER_LISTEN_OK;
866 }
867 else
868 {
869 _DBUS_ASSERT_ERROR_IS_SET(error);
870 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
871 }
872 }
873 else
874 {
875 /* If we don't handle the method, we return NULL with the
876 * error unset
877 */
878 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
879 return DBUS_SERVER_LISTEN_NOT_HANDLED;
880 }
881}
882
883
_dbus_address_append_escaped
dbus_bool_t _dbus_address_append_escaped(DBusString *escaped, const DBusString *unescaped)
Appends an escaped version of one string to another string, using the D-Bus address escaping mechanis...
Definition dbus-address.c:109
_dbus_set_bad_address
void _dbus_set_bad_address(DBusError *error, const char *address_problem_type, const char *address_problem_field, const char *address_problem_other)
Sets DBUS_ERROR_BAD_ADDRESS.
Definition dbus-address.c:70
dbus_address_entry_get_method
const char * dbus_address_entry_get_method(DBusAddressEntry *entry)
Returns the method string of an address entry.
Definition dbus-address.c:232
dbus_address_entry_get_value
const char * dbus_address_entry_get_value(DBusAddressEntry *entry, const char *key)
Returns a value from a key of an entry.
Definition dbus-address.c:249
_dbus_connection_new_for_transport
DBusConnection * _dbus_connection_new_for_transport(DBusTransport *transport)
Creates a new connection for the given transport.
Definition dbus-connection.c:1253
_dbus_connection_close_if_only_one_ref
void _dbus_connection_close_if_only_one_ref(DBusConnection *connection)
Used internally to handle the semantics of dbus_server_set_new_connection_function().
Definition dbus-connection.c:2160
dbus_connection_unref
void dbus_connection_unref(DBusConnection *connection)
Decrements the reference count of a DBusConnection, and finalizes it if the count reaches zero.
Definition dbus-connection.c:2832
DBUS_WATCH_READABLE
@ DBUS_WATCH_READABLE
As in POLLIN.
Definition dbus-connection.h:63
DBUS_WATCH_HANGUP
@ DBUS_WATCH_HANGUP
As in POLLHUP (can't watch for it, but can be present in current state passed to dbus_watch_handle())...
Definition dbus-connection.h:70
DBUS_WATCH_ERROR
@ DBUS_WATCH_ERROR
As in POLLERR (can't watch for this, but can be present in current state passed to dbus_watch_handle(...
Definition dbus-connection.h:65
dbus_set_error
void dbus_set_error(DBusError *error, const char *name, const char *format,...)
Assigns an error name and message to a DBusError.
Definition dbus-errors.c:356
dbus_error_is_set
dbus_bool_t dbus_error_is_set(const DBusError *error)
Checks whether an error occurred (the error is set).
Definition dbus-errors.c:331
_dbus_delete_file
dbus_bool_t _dbus_delete_file(const DBusString *filename, DBusError *error)
Deletes the given file.
Definition dbus-file-unix.c:441
_dbus_assert
#define _dbus_assert(condition)
Aborts with an error message if the condition is false.
Definition dbus-internals.h:153
_dbus_strdup
char * _dbus_strdup(const char *str)
Duplicates a string.
Definition dbus-internals.c:621
_dbus_generate_random_ascii
dbus_bool_t _dbus_generate_random_ascii(DBusString *str, int n_bytes, DBusError *error)
Generates the given number of random bytes, where the bytes are chosen from the alphanumeric ASCII su...
Definition dbus-sysdeps.c:525
NULL
#define NULL
A null pointer, defined appropriately for C or C++.
Definition dbus-macros.h:51
TRUE
#define TRUE
Expands to "1".
Definition dbus-macros.h:41
FALSE
#define FALSE
Expands to "0".
Definition dbus-macros.h:44
dbus_free
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
Definition dbus-memory.c:710
dbus_new
#define dbus_new(type, count)
Safe macro for using dbus_malloc().
Definition dbus-memory.h:59
dbus_new0
#define dbus_new0(type, count)
Safe macro for using dbus_malloc0().
Definition dbus-memory.h:60
DBUS_ERROR_NOT_SUPPORTED
#define DBUS_ERROR_NOT_SUPPORTED
Requested operation isn't supported (like ENOSYS on UNIX).
Definition dbus-protocol.h:375
DBUS_ERROR_NO_MEMORY
#define DBUS_ERROR_NO_MEMORY
There was not enough memory to complete an operation.
Definition dbus-protocol.h:363
_dbus_server_add_watch
dbus_bool_t _dbus_server_add_watch(DBusServer *server, DBusWatch *watch)
Adds a watch for this server, chaining out to application-provided watch handlers.
Definition dbus-server.c:297
_dbus_server_remove_watch
void _dbus_server_remove_watch(DBusServer *server, DBusWatch *watch)
Removes a watch previously added with _dbus_server_remove_watch().
Definition dbus-server.c:313
_dbus_server_init_base
dbus_bool_t _dbus_server_init_base(DBusServer *server, const DBusServerVTable *vtable, const DBusString *address, DBusError *error)
Initializes the members of the DBusServer base class.
Definition dbus-server.c:113
_dbus_server_finalize_base
void _dbus_server_finalize_base(DBusServer *server)
Finalizes the members of the DBusServer base class.
Definition dbus-server.c:202
_dbus_server_ref_unlocked
DBUS_PRIVATE_EXPORT void _dbus_server_ref_unlocked(DBusServer *server)
Like dbus_server_ref() but does not acquire the lock (must already be held).
Definition dbus-server.c:457
_dbus_server_new_for_domain_socket
DBusServer * _dbus_server_new_for_domain_socket(const char *path, dbus_bool_t abstract, DBusError *error)
Creates a new server listening on the given Unix domain socket.
Definition dbus-server-socket.c:610
_dbus_server_new_for_tcp_socket
DBusServer * _dbus_server_new_for_tcp_socket(const char *host, const char *bind, const char *port, const char *family, DBusError *error, dbus_bool_t use_nonce)
Creates a new server listening on TCP.
Definition dbus-server-socket.c:420
_dbus_server_new_for_socket
DBusServer * _dbus_server_new_for_socket(DBusSocket *fds, int n_fds, const DBusString *address, DBusNonceFile *noncefile, DBusError *error)
Creates a new server listening on the given file descriptor.
Definition dbus-server-socket.c:288
_dbus_server_listen_socket
DBusServerListenResult _dbus_server_listen_socket(DBusAddressEntry *entry, DBusServer **server_p, DBusError *error)
Tries to interpret the address entry for various socket-related addresses (well, currently only tcp a...
Definition dbus-server-socket.c:540
_dbus_server_listen_unix_socket
DBusServerListenResult _dbus_server_listen_unix_socket(DBusAddressEntry *entry, DBusServer **server_p, DBusError *error)
Tries to interpret the address entry for UNIX socket addresses.
Definition dbus-server-socket.c:761
_dbus_server_socket_own_filename
void _dbus_server_socket_own_filename(DBusServer *server, char *filename)
This is a bad hack since it's really unix domain socket specific.
Definition dbus-server-socket.c:593
dbus_server_unref
void dbus_server_unref(DBusServer *server)
Decrements the reference count of a DBusServer.
Definition dbus-server.c:735
DBusNewConnectionFunction
void(* DBusNewConnectionFunction)(DBusServer *server, DBusConnection *new_connection, void *data)
Called when a new connection to the server is available.
Definition dbus-server.h:50
_dbus_string_append
dbus_bool_t _dbus_string_append(DBusString *str, const char *buffer)
Appends a nul-terminated C-style string to a DBusString.
Definition dbus-string.c:980
_dbus_string_init
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
Definition dbus-string.c:182
_dbus_string_init_const
void _dbus_string_init_const(DBusString *str, const char *value)
Initializes a constant string.
Definition dbus-string.c:197
_dbus_string_free
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init(), and fills it with the same contents as _DBUS_STRING_IN...
Definition dbus-string.c:278
_dbus_get_is_errno_eagain_or_ewouldblock
dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock(int e)
See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently for Winsock so is abstracted).
Definition dbus-sysdeps-unix.c:4801
_dbus_getenv
const char * _dbus_getenv(const char *varname)
Wrapper for getenv().
Definition dbus-sysdeps.c:197
_dbus_listen_unix_socket
DBusSocket _dbus_listen_unix_socket(const char *path, dbus_bool_t abstract, DBusError *error)
Creates a socket and binds it to the given path, then listens on the socket.
Definition dbus-sysdeps-unix.c:1170
_dbus_set_socket_nonblocking
dbus_bool_t _dbus_set_socket_nonblocking(DBusSocket fd, DBusError *error)
Sets a file descriptor to be nonblocking.
Definition dbus-sysdeps-unix.c:3797
_dbus_daemon_unpublish_session_bus_address
dbus_bool_t _dbus_daemon_unpublish_session_bus_address(void)
Clear the platform-specific centralized location where the session bus address is published.
Definition dbus-sysdeps-win.c:3112
_dbus_listen_tcp_socket
int _dbus_listen_tcp_socket(const char *host, const char *port, const char *family, DBusString *retport, const char **retfamily, DBusSocket **fds_p, DBusError *error)
Creates a socket and binds it to the given path, then listens on the socket.
Definition dbus-sysdeps-unix.c:1606
_dbus_close_socket
dbus_bool_t _dbus_close_socket(DBusSocket *fd, DBusError *error)
Closes a socket and invalidates it.
Definition dbus-sysdeps-unix.c:314
_dbus_concat_dir_and_file
dbus_bool_t _dbus_concat_dir_and_file(DBusString *dir, const DBusString *next_component)
Appends the given filename to the given directory.
Definition dbus-sysdeps-unix.c:3497
_dbus_accept
DBusSocket _dbus_accept(DBusSocket listen_fd)
Accepts a connection on a listening socket.
Definition dbus-sysdeps-unix.c:2589
_dbus_transport_new_for_socket
DBusTransport * _dbus_transport_new_for_socket(DBusSocket fd, const DBusString *server_guid, const DBusString *address)
Creates a new transport for the given socket file descriptor.
Definition dbus-transport-socket.c:1295
_dbus_transport_set_auth_mechanisms
dbus_bool_t _dbus_transport_set_auth_mechanisms(DBusTransport *transport, const char **mechanisms)
Sets the SASL authentication mechanisms supported by this transport.
Definition dbus-transport.c:1565
_dbus_transport_unref
void _dbus_transport_unref(DBusTransport *transport)
Decrements the reference count for the transport.
Definition dbus-transport.c:486
dbus_bool_t
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition dbus-types.h:37
_dbus_watch_new
DBusWatch * _dbus_watch_new(DBusPollable fd, unsigned int flags, dbus_bool_t enabled, DBusWatchHandler handler, void *data, DBusFreeFunction free_data_function)
Creates a new DBusWatch.
Definition dbus-watch.c:90
_dbus_watch_unref
void _dbus_watch_unref(DBusWatch *watch)
Decrements the reference count of a DBusWatch object and finalizes the object if the count reaches ze...
Definition dbus-watch.c:140
_dbus_watch_invalidate
void _dbus_watch_invalidate(DBusWatch *watch)
Clears the file descriptor from a now-invalid watch object so that no one tries to use it.
Definition dbus-watch.c:171
DBusAddressEntry
Internals of DBusAddressEntry.
Definition dbus-address.c:49
DBusConnection
Implementation details of DBusConnection.
Definition dbus-connection.c:259
DBusError
Object representing an exception.
Definition dbus-errors.h:51
DBusNonceFile
Definition dbus-nonce.c:36
DBusServerSocket
Implementation details of DBusServerSocket.
Definition dbus-server-socket.c:53
DBusServerSocket::n_fds
int n_fds
Number of active file handles.
Definition dbus-server-socket.c:55
DBusServerSocket::fds
DBusSocket * fds
File descriptor or DBUS_SOCKET_INVALID if disconnected.
Definition dbus-server-socket.c:56
DBusServerSocket::noncefile
DBusNonceFile * noncefile
Nonce file used to authenticate clients.
Definition dbus-server-socket.c:59
DBusServerSocket::watch
DBusWatch ** watch
File descriptor watch.
Definition dbus-server-socket.c:57
DBusServerSocket::base
DBusServer base
Parent class members.
Definition dbus-server-socket.c:54
DBusServerSocket::socket_name
char * socket_name
Name of domain socket, to unlink if appropriate.
Definition dbus-server-socket.c:58
DBusServerVTable
Virtual table to be implemented by all server "subclasses".
Definition dbus-server-protected.h:46
DBusServer
Internals of DBusServer object.
Definition dbus-server-protected.h:59
DBusServer::published_address
dbus_bool_t published_address
flag which indicates that server has published its bus address.
Definition dbus-server-protected.h:72
DBusServer::guid_hex
DBusString guid_hex
Hex-encoded version of GUID.
Definition dbus-server-protected.h:66
DBusServer::new_connection_function
DBusNewConnectionFunction new_connection_function
Callback to invoke when a new connection is created.
Definition dbus-server-protected.h:78
DBusServer::new_connection_data
void * new_connection_data
Data for new connection callback.
Definition dbus-server-protected.h:80
DBusServer::auth_mechanisms
char ** auth_mechanisms
Array of allowed authentication mechanisms.
Definition dbus-server-protected.h:87
DBusSocket
Socket interface.
Definition dbus-sysdeps.h:185
DBusString
Definition dbus-string.h:47
DBusTransport
Object representing a transport such as a socket.
Definition dbus-transport-protected.h:83
DBusWatch
Implementation of DBusWatch.
Definition dbus-watch.c:43