1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2013 Samsung Electronics
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
20 * Author: Michal Eljasiewicz <m.eljasiewic@samsung.com>
21 * Author: Lukasz Skalski <l.skalski@samsung.com>
26 #include "glib-unix.h"
34 #include <sys/ioctl.h>
38 #ifdef HAVE_SYS_FILIO_H
39 # include <sys/filio.h>
46 #include <glib/gstdio.h>
47 #include <glib/glib-private.h>
49 #include <gio/gunixfdlist.h>
52 #include "gunixfdmessage.h"
54 #define KDBUS_POOL_SIZE (16 * 1024LU * 1024LU)
55 #define KDBUS_ALIGN8(l) (((l) + 7) & ~7)
56 #define KDBUS_ALIGN8_PTR(p) ((void*) (uintptr_t)(p))
58 #define KDBUS_ITEM_HEADER_SIZE G_STRUCT_OFFSET(struct kdbus_item, data)
59 #define KDBUS_ITEM_SIZE(s) KDBUS_ALIGN8((s) + KDBUS_ITEM_HEADER_SIZE)
61 #define KDBUS_ITEM_NEXT(item) \
62 (typeof(item))(((guint8 *)item) + KDBUS_ALIGN8((item)->size))
63 #define KDBUS_ITEM_FOREACH(item, head, first) \
64 for (item = (head)->first; \
65 (guint8 *)(item) < (guint8 *)(head) + (head)->size; \
66 item = KDBUS_ITEM_NEXT(item))
68 #define g_alloca0(x) memset(g_alloca(x), '\0', (x))
70 struct dbus_fixed_header {
79 #define DBUS_FIXED_HEADER_TYPE ((const GVariantType *) "(yyyyut)")
80 #define DBUS_EXTENDED_HEADER_TYPE ((const GVariantType *) "a{tv}")
81 #define DBUS_MESSAGE_TYPE ((const GVariantType *) "((yyyyut)a{tv}v)")
83 #define KDBUS_MSG_MAX_SIZE 8192
89 G_BUS_CREDS_UNIQUE_NAME = 3,
90 G_BUS_CREDS_SELINUX_CONTEXT = 4
91 } GBusCredentialsFlags;
93 typedef GObjectClass GKDBusWorkerClass;
97 GObject parent_instance;
101 GMainContext *context;
110 guint64 attach_flags_send;
111 guint64 attach_flags_recv;
124 static gssize _g_kdbus_receive (GKDBusWorker *kdbus,
125 GCancellable *cancellable,
128 G_DEFINE_TYPE (GKDBusWorker, g_kdbus_worker, G_TYPE_OBJECT)
130 /* Hash keys for bloom filters*/
131 const guint8 hash_keys[8][16] =
133 {0xb9,0x66,0x0b,0xf0,0x46,0x70,0x47,0xc1,0x88,0x75,0xc4,0x9c,0x54,0xb9,0xbd,0x15},
134 {0xaa,0xa1,0x54,0xa2,0xe0,0x71,0x4b,0x39,0xbf,0xe1,0xdd,0x2e,0x9f,0xc5,0x4a,0x3b},
135 {0x63,0xfd,0xae,0xbe,0xcd,0x82,0x48,0x12,0xa1,0x6e,0x41,0x26,0xcb,0xfa,0xa0,0xc8},
136 {0x23,0xbe,0x45,0x29,0x32,0xd2,0x46,0x2d,0x82,0x03,0x52,0x28,0xfe,0x37,0x17,0xf5},
137 {0x56,0x3b,0xbf,0xee,0x5a,0x4f,0x43,0x39,0xaf,0xaa,0x94,0x08,0xdf,0xf0,0xfc,0x10},
138 {0x31,0x80,0xc8,0x73,0xc7,0xea,0x46,0xd3,0xaa,0x25,0x75,0x0f,0x9e,0x4c,0x09,0x29},
139 {0x7d,0xf7,0x18,0x4b,0x7b,0xa4,0x44,0xd5,0x85,0x3c,0x06,0xe0,0x65,0x53,0x96,0x6d},
140 {0xf2,0x77,0xe9,0x6f,0x93,0xb5,0x4e,0x71,0x9a,0x0c,0x34,0x88,0x39,0x25,0xbf,0x35}
148 g_kdbus_worker_finalize (GObject *object)
150 GKDBusWorker *kdbus = G_KDBUS_WORKER (object);
152 if (kdbus->kdbus_buffer != NULL)
153 munmap (kdbus->kdbus_buffer, KDBUS_POOL_SIZE);
155 kdbus->kdbus_buffer = NULL;
157 if (kdbus->fd != -1 && !kdbus->closed)
158 _g_kdbus_close (kdbus);
160 G_OBJECT_CLASS (g_kdbus_worker_parent_class)->finalize (object);
164 g_kdbus_worker_class_init (GKDBusWorkerClass *class)
166 class->finalize = g_kdbus_worker_finalize;
170 g_kdbus_worker_init (GKDBusWorker *kdbus)
174 kdbus->unique_id = -1;
175 kdbus->unique_name = NULL;
177 kdbus->kdbus_buffer = NULL;
179 kdbus->flags = 0; /* KDBUS_HELLO_ACCEPT_FD */
180 kdbus->attach_flags_send = _KDBUS_ATTACH_ALL;
181 kdbus->attach_flags_recv = _KDBUS_ATTACH_ALL;
185 kdbus_ready (gint fd,
186 GIOCondition condition,
189 GKDBusWorker *kdbus = user_data;
190 GError *error = NULL;
192 _g_kdbus_receive (kdbus, NULL, &error);
193 g_assert_no_error (error);
195 return G_SOURCE_CONTINUE;
199 _g_kdbus_open (GKDBusWorker *worker,
200 const gchar *address,
203 g_return_val_if_fail (G_IS_KDBUS_WORKER (worker), FALSE);
205 worker->fd = open(address, O_RDWR|O_NOCTTY|O_CLOEXEC);
208 g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED, _("Can't open kdbus endpoint"));
212 worker->closed = FALSE;
214 worker->context = g_main_context_ref_thread_default ();
215 worker->source = g_unix_fd_source_new (worker->fd, G_IO_IN);
216 g_source_set_callback (worker->source, (GSourceFunc) kdbus_ready, worker, NULL);
217 g_source_attach (worker->source, worker->context);
228 g_kdbus_free_data (GKDBusWorker *kdbus,
231 struct kdbus_cmd_free cmd;
237 ret = ioctl (kdbus->fd, KDBUS_CMD_FREE, &cmd);
246 * g_kdbus_translate_nameowner_flags:
250 g_kdbus_translate_nameowner_flags (GBusNameOwnerFlags flags,
251 guint64 *kdbus_flags)
257 if (flags & G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT)
258 new_flags |= KDBUS_NAME_ALLOW_REPLACEMENT;
260 if (flags & G_BUS_NAME_OWNER_FLAGS_REPLACE)
261 new_flags |= KDBUS_NAME_REPLACE_EXISTING;
263 if (!(flags & G_BUS_NAME_OWNER_FLAGS_DO_NOT_QUEUE))
264 new_flags |= KDBUS_NAME_QUEUE;
266 *kdbus_flags = new_flags;
275 _g_kdbus_close (GKDBusWorker *kdbus)
277 g_return_val_if_fail (G_IS_KDBUS_WORKER (kdbus), FALSE);
282 g_source_destroy (kdbus->source);
285 g_main_context_unref (kdbus->context);
286 kdbus->context = NULL;
291 kdbus->closed = TRUE;
295 * _g_kdbus_is_closed:
299 _g_kdbus_is_closed (GKDBusWorker *kdbus)
301 g_return_val_if_fail (G_IS_KDBUS_WORKER (kdbus), FALSE);
303 return kdbus->closed;
312 _g_kdbus_Hello (GKDBusWorker *worker,
315 struct kdbus_cmd_hello *hello;
316 struct kdbus_item *item;
319 size_t size, conn_name_size;
321 conn_name = "gdbus-kdbus";
322 conn_name_size = strlen (conn_name);
324 size = KDBUS_ALIGN8 (G_STRUCT_OFFSET (struct kdbus_cmd_hello, items)) +
325 KDBUS_ALIGN8 (G_STRUCT_OFFSET (struct kdbus_item, str) + conn_name_size + 1);
327 hello = g_alloca0 (size);
328 hello->flags = worker->flags;
329 hello->attach_flags_send = worker->attach_flags_send;
330 hello->attach_flags_recv = worker->attach_flags_recv;
332 hello->pool_size = KDBUS_POOL_SIZE;
335 item->size = G_STRUCT_OFFSET (struct kdbus_item, str) + conn_name_size + 1;
336 item->type = KDBUS_ITEM_CONN_DESCRIPTION;
337 memcpy (item->str, conn_name, conn_name_size+1);
338 item = KDBUS_ITEM_NEXT (item);
340 if (ioctl(worker->fd, KDBUS_CMD_HELLO, hello))
342 g_set_error (error, G_IO_ERROR,
343 g_io_error_from_errno (errno),
344 _("Failed to send HELLO: %s"),
349 worker->kdbus_buffer = mmap(NULL, KDBUS_POOL_SIZE, PROT_READ, MAP_SHARED, worker->fd, 0);
350 if (worker->kdbus_buffer == MAP_FAILED)
352 g_set_error (error, G_IO_ERROR,
353 g_io_error_from_errno (errno),
359 if (hello->bus_flags > 0xFFFFFFFFULL)
361 g_set_error_literal (error,
364 _("Incompatible HELLO flags"));
368 memcpy (worker->bus_id, hello->id128, 16);
370 worker->unique_id = hello->id;
371 asprintf(&worker->unique_name, ":1.%llu", (unsigned long long) hello->id);
373 /* read bloom filters parameters */
374 worker->bloom_size = (gsize) hello->bloom.size;
375 worker->bloom_n_hash = (guint) hello->bloom.n_hash;
377 return g_variant_new ("(s)", worker->unique_name);
382 * _g_kdbus_RequestName:
386 _g_kdbus_RequestName (GKDBusWorker *worker,
388 GBusNameOwnerFlags flags,
392 struct kdbus_cmd_name *kdbus_name;
397 status = G_BUS_REQUEST_NAME_FLAGS_PRIMARY_OWNER;
399 if (!g_dbus_is_name (name))
403 G_DBUS_ERROR_INVALID_ARGS,
404 "Given bus name \"%s\" is not valid", name);
412 G_DBUS_ERROR_INVALID_ARGS,
413 "Cannot acquire a service starting with ':' such as \"%s\"", name);
417 g_kdbus_translate_nameowner_flags (flags, &kdbus_flags);
419 len = strlen(name) + 1;
420 size = G_STRUCT_OFFSET (struct kdbus_cmd_name, items) + KDBUS_ITEM_SIZE(len);
421 kdbus_name = g_alloca0 (size);
422 kdbus_name->size = size;
423 kdbus_name->items[0].size = KDBUS_ITEM_HEADER_SIZE + len;
424 kdbus_name->items[0].type = KDBUS_ITEM_NAME;
425 kdbus_name->flags = kdbus_flags;
426 memcpy (kdbus_name->items[0].str, name, len);
428 ret = ioctl(worker->fd, KDBUS_CMD_NAME_ACQUIRE, kdbus_name);
432 status = G_BUS_REQUEST_NAME_FLAGS_EXISTS;
433 else if (errno == EALREADY)
434 status = G_BUS_REQUEST_NAME_FLAGS_ALREADY_OWNER;
437 g_set_error (error, G_IO_ERROR,
438 g_io_error_from_errno (errno),
439 _("Error while acquiring name: %s"),
445 if (kdbus_name->flags & KDBUS_NAME_IN_QUEUE)
446 status = G_BUS_REQUEST_NAME_FLAGS_IN_QUEUE;
448 result = g_variant_new ("(u)", status);
455 * _g_kdbus_ReleaseName:
459 _g_kdbus_ReleaseName (GKDBusWorker *worker,
464 struct kdbus_cmd_name *kdbus_name;
468 status = G_BUS_RELEASE_NAME_FLAGS_RELEASED;
470 if (!g_dbus_is_name (name))
474 G_DBUS_ERROR_INVALID_ARGS,
475 "Given bus name \"%s\" is not valid", name);
483 G_DBUS_ERROR_INVALID_ARGS,
484 "Cannot release a service starting with ':' such as \"%s\"", name);
488 len = strlen(name) + 1;
489 size = G_STRUCT_OFFSET (struct kdbus_cmd_name, items) + KDBUS_ITEM_SIZE(len);
490 kdbus_name = g_alloca0 (size);
491 kdbus_name->size = size;
492 kdbus_name->items[0].size = KDBUS_ITEM_HEADER_SIZE + len;
493 kdbus_name->items[0].type = KDBUS_ITEM_NAME;
494 memcpy (kdbus_name->items[0].str, name, len);
496 ret = ioctl(worker->fd, KDBUS_CMD_NAME_RELEASE, kdbus_name);
500 status = G_BUS_RELEASE_NAME_FLAGS_NON_EXISTENT;
501 else if (errno == EADDRINUSE)
502 status = G_BUS_RELEASE_NAME_FLAGS_NOT_OWNER;
505 g_set_error (error, G_IO_ERROR,
506 g_io_error_from_errno (errno),
507 _("Error while releasing name: %s"),
513 result = g_variant_new ("(u)", status);
524 _g_kdbus_GetBusId (GKDBusWorker *worker,
531 result_str = g_string_new (NULL);
533 for (cnt=0; cnt<16; cnt++)
534 g_string_append_printf (result_str, "%02x", worker->bus_id[cnt]);
536 result = g_variant_new ("(s)", result_str->str);
537 g_string_free (result_str, TRUE);
544 * _g_kdbus_GetListNames:
548 _g_kdbus_GetListNames (GKDBusWorker *worker,
549 guint list_name_type,
553 GVariantBuilder *builder;
555 struct kdbus_cmd_name_list cmd = {};
556 struct kdbus_name_list *name_list;
557 struct kdbus_name_info *name;
565 cmd.flags = KDBUS_NAME_LIST_ACTIVATORS; /* ListActivatableNames */
567 cmd.flags = KDBUS_NAME_LIST_UNIQUE | KDBUS_NAME_LIST_NAMES; /* ListNames */
569 ret = ioctl(worker->fd, KDBUS_CMD_NAME_LIST, &cmd);
575 _("Error listing names"));
579 name_list = (struct kdbus_name_list *) ((guint8 *) worker->kdbus_buffer + cmd.offset);
580 builder = g_variant_builder_new (G_VARIANT_TYPE ("as"));
582 KDBUS_ITEM_FOREACH(name, name_list, names)
584 struct kdbus_item *item;
585 const gchar *item_name = "";
587 if ((cmd.flags & KDBUS_NAME_LIST_UNIQUE) && name->owner_id != prev_id)
589 GString *unique_name;
591 unique_name = g_string_new (NULL);
592 g_string_printf (unique_name, ":1.%llu", name->owner_id);
593 g_variant_builder_add (builder, "s", unique_name->str);
594 g_string_free (unique_name,TRUE);
595 prev_id = name->owner_id;
598 KDBUS_ITEM_FOREACH(item, name, items)
599 if (item->type == KDBUS_ITEM_OWNED_NAME)
600 item_name = item->name.name;
602 if (g_dbus_is_name (item_name))
603 g_variant_builder_add (builder, "s", item_name);
606 result = g_variant_new ("(as)", builder);
607 g_variant_builder_unref (builder);
609 g_kdbus_free_data (worker, cmd.offset);
615 * _g_kdbus_NameHasOwner_internal:
619 g_kdbus_NameHasOwner_internal (GKDBusWorker *worker,
623 struct kdbus_cmd_info *cmd;
627 if (g_dbus_is_unique_name(name))
629 size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items);
630 cmd = g_alloca0 (size);
631 cmd->id = g_ascii_strtoull (name+3, NULL, 10);
635 len = strlen(name) + 1;
636 size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items) + KDBUS_ITEM_SIZE(len);
637 cmd = g_alloca0 (size);
638 cmd->items[0].size = KDBUS_ITEM_HEADER_SIZE + len;
639 cmd->items[0].type = KDBUS_ITEM_NAME;
640 memcpy (cmd->items[0].str, name, len);
644 ret = ioctl(worker->fd, KDBUS_CMD_CONN_INFO, cmd);
645 g_kdbus_free_data (worker, cmd->offset);
655 * _g_kdbus_GetListQueuedOwners:
659 _g_kdbus_GetListQueuedOwners (GKDBusWorker *worker,
664 GVariantBuilder *builder;
665 GString *unique_name;
668 struct kdbus_cmd_name_list cmd = {};
669 struct kdbus_name_list *name_list;
670 struct kdbus_name_info *kname;
672 if (!g_dbus_is_name (name))
676 G_DBUS_ERROR_INVALID_ARGS,
677 "Given bus name \"%s\" is not valid", name);
681 if (!g_kdbus_NameHasOwner_internal (worker, name, error))
685 G_DBUS_ERROR_NAME_HAS_NO_OWNER,
686 "Could not get owner of name '%s': no such name", name);
690 cmd.flags = KDBUS_NAME_LIST_QUEUED;
691 ret = ioctl(worker->fd, KDBUS_CMD_NAME_LIST, &cmd);
697 _("Error listing names"));
701 name_list = (struct kdbus_name_list *) ((guint8 *) worker->kdbus_buffer + cmd.offset);
703 unique_name = g_string_new (NULL);
704 builder = g_variant_builder_new (G_VARIANT_TYPE ("as"));
705 KDBUS_ITEM_FOREACH(kname, name_list, names)
707 struct kdbus_item *item;
708 const char *item_name = "";
710 KDBUS_ITEM_FOREACH(item, kname, items)
711 if (item->type == KDBUS_ITEM_NAME)
712 item_name = item->str;
714 if (strcmp(item_name, name))
717 g_string_printf (unique_name, ":1.%llu", kname->owner_id);
718 g_variant_builder_add (builder, "s", item_name);
721 result = g_variant_new ("(as)", builder);
722 g_variant_builder_unref (builder);
723 g_string_free (unique_name,TRUE);
725 g_kdbus_free_data (worker, cmd.offset);
731 * g_kdbus_GetConnInfo_internal:
735 g_kdbus_GetConnInfo_internal (GKDBusWorker *worker,
742 struct kdbus_cmd_info *cmd;
743 struct kdbus_info *conn_info;
744 struct kdbus_item *item;
750 if (!g_dbus_is_name (name))
754 G_DBUS_ERROR_INVALID_ARGS,
755 "Given bus name \"%s\" is not valid", name);
759 if (!g_kdbus_NameHasOwner_internal (worker, name, error))
763 G_DBUS_ERROR_NAME_HAS_NO_OWNER,
764 "Could not get owner of name '%s': no such name", name);
768 if (g_dbus_is_unique_name(name))
770 size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items);
771 cmd = g_alloca0 (size);
772 cmd->id = g_ascii_strtoull (name+3, NULL, 10);
776 len = strlen(name) + 1;
777 size = G_STRUCT_OFFSET (struct kdbus_cmd_info, items) + KDBUS_ITEM_SIZE(len);
778 cmd = g_alloca0 (size);
779 cmd->items[0].size = KDBUS_ITEM_HEADER_SIZE + len;
780 cmd->items[0].type = KDBUS_ITEM_NAME;
781 memcpy (cmd->items[0].str, name, len);
784 cmd->flags = _KDBUS_ATTACH_ALL;
787 ret = ioctl(worker->fd, KDBUS_CMD_CONN_INFO, cmd);
793 _("Could not get connection info"));
797 conn_info = (struct kdbus_info *) ((guint8 *) worker->kdbus_buffer + cmd->offset);
800 if (conn_info->flags & KDBUS_HELLO_ACTIVATOR)
804 if (flag == G_BUS_CREDS_UNIQUE_NAME)
806 GString *unique_name;
808 unique_name = g_string_new (NULL);
809 g_string_printf (unique_name, ":1.%llu", (unsigned long long) conn_info->id);
810 result = g_variant_new ("(s)", unique_name->str);
811 g_string_free (unique_name,TRUE);
815 KDBUS_ITEM_FOREACH(item, conn_info, items)
819 case KDBUS_ITEM_PIDS:
821 if (flag == G_BUS_CREDS_PID)
823 guint pid = item->pids.pid;
824 result = g_variant_new ("(u)", pid);
828 case KDBUS_ITEM_CREDS:
830 if (flag == G_BUS_CREDS_UID)
832 guint uid = item->creds.uid;
833 result = g_variant_new ("(u)", uid);
837 case KDBUS_ITEM_SECLABEL:
838 case KDBUS_ITEM_PID_COMM:
839 case KDBUS_ITEM_TID_COMM:
841 case KDBUS_ITEM_CMDLINE:
842 case KDBUS_ITEM_CGROUP:
843 case KDBUS_ITEM_CAPS:
844 case KDBUS_ITEM_AUDIT:
845 case KDBUS_ITEM_CONN_DESCRIPTION:
846 case KDBUS_ITEM_AUXGROUPS:
847 case KDBUS_ITEM_OWNED_NAME:
853 g_kdbus_free_data (worker, cmd->offset);
859 * _g_kdbus_GetNameOwner:
863 _g_kdbus_GetNameOwner (GKDBusWorker *worker,
867 return g_kdbus_GetConnInfo_internal (worker,
869 G_BUS_CREDS_UNIQUE_NAME,
875 * _g_kdbus_GetConnectionUnixProcessID:
879 _g_kdbus_GetConnectionUnixProcessID (GKDBusWorker *worker,
883 return g_kdbus_GetConnInfo_internal (worker,
891 * _g_kdbus_GetConnectionUnixUser:
895 _g_kdbus_GetConnectionUnixUser (GKDBusWorker *worker,
899 return g_kdbus_GetConnInfo_internal (worker,
907 * _g_kdbus_match_remove:
911 _g_kdbus_match_remove (GKDBusWorker *worker,
914 struct kdbus_cmd_match cmd_match = {};
917 cmd_match.size = sizeof (cmd_match);
918 cmd_match.cookie = cookie;
920 ret = ioctl(worker->fd, KDBUS_CMD_MATCH_REMOVE, &cmd_match);
922 g_warning ("ERROR - %d\n", (int) errno);
927 * _g_kdbus_subscribe_name_acquired:
931 _g_kdbus_subscribe_name_owner_changed (GKDBusWorker *worker,
933 const gchar *old_name,
934 const gchar *new_name,
937 struct kdbus_item *item;
938 struct kdbus_cmd_match *cmd_match;
941 guint64 old_id = 0; /* XXX why? */
942 guint64 new_id = KDBUS_MATCH_ID_ANY;
944 len = strlen(name) + 1;
945 size = KDBUS_ALIGN8(G_STRUCT_OFFSET (struct kdbus_cmd_match, items) +
946 G_STRUCT_OFFSET (struct kdbus_item, name_change) +
947 G_STRUCT_OFFSET (struct kdbus_notify_name_change, name) + len);
949 cmd_match = g_alloca0 (size);
950 cmd_match->size = size;
951 cmd_match->cookie = cookie;
952 item = cmd_match->items;
954 if (old_name[0] == 0)
956 old_id = KDBUS_MATCH_ID_ANY;
960 if (g_dbus_is_unique_name(old_name))
966 if (new_name[0] == 0)
968 new_id = KDBUS_MATCH_ID_ANY;
972 if (g_dbus_is_unique_name(new_name))
978 cmd_match = g_alloca0 (size);
979 cmd_match->size = size;
980 cmd_match->cookie = cookie;
981 item = cmd_match->items;
983 /* KDBUS_ITEM_NAME_CHANGE */
984 item->type = KDBUS_ITEM_NAME_CHANGE;
985 item->name_change.old_id.id = old_id;
986 item->name_change.new_id.id = new_id;
987 memcpy(item->name_change.name, name, len);
988 item->size = G_STRUCT_OFFSET (struct kdbus_item, name_change) +
989 G_STRUCT_OFFSET(struct kdbus_notify_name_change, name) + len;
990 item = KDBUS_ITEM_NEXT(item);
992 ret = ioctl(worker->fd, KDBUS_CMD_MATCH_ADD, cmd_match);
994 g_warning ("ERROR - %d\n", (int) errno);
999 * _g_kdbus_subscribe_name_acquired:
1003 _g_kdbus_subscribe_name_acquired (GKDBusWorker *worker,
1006 struct kdbus_item *item;
1007 struct kdbus_cmd_match *cmd_match;
1012 len = strlen(name) + 1;
1013 size = KDBUS_ALIGN8(G_STRUCT_OFFSET (struct kdbus_cmd_match, items) +
1014 G_STRUCT_OFFSET (struct kdbus_item, name_change) +
1015 G_STRUCT_OFFSET (struct kdbus_notify_name_change, name) + len);
1017 cookie = 0xbeefbeefbeefbeef;
1018 cmd_match = g_alloca0 (size);
1019 cmd_match->size = size;
1020 cmd_match->cookie = cookie;
1021 item = cmd_match->items;
1023 /* KDBUS_ITEM_NAME_ADD */
1024 item->type = KDBUS_ITEM_NAME_ADD;
1025 item->name_change.old_id.id = KDBUS_MATCH_ID_ANY;
1026 item->name_change.new_id.id = worker->unique_id;
1027 memcpy(item->name_change.name, name, len);
1028 item->size = G_STRUCT_OFFSET (struct kdbus_item, name_change) +
1029 G_STRUCT_OFFSET(struct kdbus_notify_name_change, name) + len;
1030 item = KDBUS_ITEM_NEXT(item);
1032 ret = ioctl(worker->fd, KDBUS_CMD_MATCH_ADD, cmd_match);
1034 g_warning ("ERROR - %d\n", (int) errno);
1036 _g_kdbus_subscribe_name_owner_changed (worker, name, "", worker->unique_name, cookie);
1041 * _g_kdbus_subscribe_name_lost:
1045 _g_kdbus_subscribe_name_lost (GKDBusWorker *worker,
1048 struct kdbus_item *item;
1049 struct kdbus_cmd_match *cmd_match;
1054 len = strlen(name) + 1;
1055 size = KDBUS_ALIGN8(G_STRUCT_OFFSET (struct kdbus_cmd_match, items) +
1056 G_STRUCT_OFFSET (struct kdbus_item, name_change) +
1057 G_STRUCT_OFFSET (struct kdbus_notify_name_change, name) + len);
1059 cookie = 0xdeafdeafdeafdeaf;
1060 cmd_match = g_alloca0 (size);
1061 cmd_match->size = size;
1062 cmd_match->cookie = cookie;
1063 item = cmd_match->items;
1065 /* KDBUS_ITEM_NAME_REMOVE */
1066 item->type = KDBUS_ITEM_NAME_REMOVE;
1067 item->name_change.old_id.id = worker->unique_id;
1068 item->name_change.new_id.id = KDBUS_MATCH_ID_ANY;
1069 memcpy(item->name_change.name, name, len);
1070 item->size = G_STRUCT_OFFSET (struct kdbus_item, name_change) +
1071 G_STRUCT_OFFSET(struct kdbus_notify_name_change, name) + len;
1072 item = KDBUS_ITEM_NEXT(item);
1074 ret = ioctl(worker->fd, KDBUS_CMD_MATCH_ADD, cmd_match);
1076 g_warning ("ERROR - %d\n", (int) errno);
1078 _g_kdbus_subscribe_name_owner_changed (worker, name, worker->unique_name, "", cookie);
1083 * _g_kdbus_unsubscribe_name_acquired:
1087 _g_kdbus_unsubscribe_name_acquired (GKDBusWorker *worker)
1091 cookie = 0xbeefbeefbeefbeef;
1092 _g_kdbus_match_remove (worker, cookie);
1097 * _g_kdbus_unsubscribe_name_lost:
1101 _g_kdbus_unsubscribe_name_lost (GKDBusWorker *worker)
1105 cookie = 0xdeafdeafdeafdeaf;
1106 _g_kdbus_match_remove (worker, cookie);
1111 * g_kdbus_append_payload_bloom:
1114 static struct kdbus_bloom_filter *
1115 g_kdbus_append_bloom (struct kdbus_item **item,
1118 struct kdbus_item *bloom_item;
1120 bloom_item = KDBUS_ALIGN8_PTR(*item);
1121 bloom_item->size = G_STRUCT_OFFSET (struct kdbus_item, bloom_filter) +
1122 G_STRUCT_OFFSET (struct kdbus_bloom_filter, data) +
1125 bloom_item->type = KDBUS_ITEM_BLOOM_FILTER;
1127 *item = KDBUS_ITEM_NEXT(bloom_item);
1128 return &bloom_item->bloom_filter;
1133 * g_kdbus_bloom_add_data:
1134 * Based on bus-bloom.c from systemd
1135 * http://cgit.freedesktop.org/systemd/systemd/tree/src/libsystemd/sd-bus/bus-bloom.c
1138 g_kdbus_bloom_add_data (GKDBusWorker *worker,
1139 guint64 bloom_data [],
1145 guint bytes_num = 0;
1151 bit_num = worker->bloom_size * 8;
1154 bytes_num = ((__builtin_clzll(bit_num) ^ 63U) + 7) / 8;
1156 for (cnt_1 = 0; cnt_1 < (worker->bloom_n_hash); cnt_1++)
1158 for (cnt_2 = 0; cnt_2 < bytes_num; cnt_2++)
1162 g_siphash24(hash, data, n, hash_keys[cnt_1++]);
1166 p = (p << 8ULL) | (guint64) hash[8 - c];
1171 bloom_data[p >> 6] |= 1ULL << (p & 63);
1177 * g_kdbus_bloom_add_pair:
1181 g_kdbus_bloom_add_pair (GKDBusWorker *worker,
1182 guint64 bloom_data [],
1183 const gchar *parameter,
1186 GString *data = g_string_new (NULL);
1188 g_string_printf (data,"%s:%s",parameter,value);
1189 g_kdbus_bloom_add_data(worker, bloom_data, data->str, data->len);
1190 g_string_free (data, TRUE);
1195 * g_kdbus_bloom_add_prefixes:
1199 g_kdbus_bloom_add_prefixes (GKDBusWorker *worker,
1200 guint64 bloom_data [],
1201 const gchar *parameter,
1205 GString *data = g_string_new (NULL);
1207 g_string_printf (data,"%s:%s",parameter,value);
1212 last_sep = strrchr(data->str, separator);
1213 if (!last_sep || last_sep == data->str)
1217 g_kdbus_bloom_add_data(worker, bloom_data, data->str, last_sep-(data->str));
1219 g_string_free (data, TRUE);
1224 * g_kdbus_setup_bloom:
1225 * Based on bus-bloom.c from systemd
1226 * http://cgit.freedesktop.org/systemd/systemd/tree/src/libsystemd/sd-bus/bus-bloom.c
1229 g_kdbus_setup_bloom (GKDBusWorker *worker,
1230 GDBusMessage *dbus_msg,
1231 struct kdbus_bloom_filter *bloom_filter)
1237 const gchar *message_type;
1238 const gchar *interface;
1239 const gchar *member;
1245 body = g_dbus_message_get_body (dbus_msg);
1246 message_type = _g_dbus_enum_to_string (G_TYPE_DBUS_MESSAGE_TYPE, g_dbus_message_get_message_type (dbus_msg));
1247 interface = g_dbus_message_get_interface (dbus_msg);
1248 member = g_dbus_message_get_member (dbus_msg);
1249 path = g_dbus_message_get_path (dbus_msg);
1251 bloom_data = bloom_filter->data;
1252 memset (bloom_data, 0, worker->bloom_size);
1253 bloom_filter->generation = 0;
1255 g_kdbus_bloom_add_pair(worker, bloom_data, "message-type", message_type);
1258 g_kdbus_bloom_add_pair(worker, bloom_data, "interface", interface);
1261 g_kdbus_bloom_add_pair(worker, bloom_data, "member", member);
1265 g_kdbus_bloom_add_pair(worker, bloom_data, "path", path);
1266 g_kdbus_bloom_add_pair(worker, bloom_data, "path-slash-prefix", path);
1267 g_kdbus_bloom_add_prefixes(worker, bloom_data, "path-slash-prefix", path, '/');
1272 g_variant_iter_init (&iter, body);
1273 while ((child = g_variant_iter_next_value (&iter)))
1275 gchar buf[sizeof("arg")-1 + 2 + sizeof("-slash-prefix")];
1276 gchar *child_string;
1279 /* Is it necessary? */
1280 //if (g_variant_is_container (child))
1281 // iterate_container_recursive (child);
1283 if (!(g_variant_is_of_type (child, G_VARIANT_TYPE_STRING)) &&
1284 !(g_variant_is_of_type (child, G_VARIANT_TYPE_OBJECT_PATH)) &&
1285 !(g_variant_is_of_type (child, G_VARIANT_TYPE_SIGNATURE)))
1288 child_string = g_variant_dup_string (child, NULL);
1290 e = stpcpy(buf, "arg");
1292 *(e++) = '0' + (char) cnt;
1295 *(e++) = '0' + (char) (cnt / 10);
1296 *(e++) = '0' + (char) (cnt % 10);
1300 g_kdbus_bloom_add_pair(worker, bloom_data, buf, child_string);
1302 strcpy(e, "-dot-prefix");
1303 g_kdbus_bloom_add_prefixes(worker, bloom_data, buf, child_string, '.');
1305 strcpy(e, "-slash-prefix");
1306 g_kdbus_bloom_add_prefixes(worker, bloom_data, buf, child_string, '/');
1308 g_free (child_string);
1309 g_variant_unref (child);
1317 * TODO: g_kdbus_NameOwnerChanged_generate, g_kdbus_KernelMethodError_generate
1321 * g_kdbus_decode_kernel_msg:
1325 g_kdbus_decode_kernel_msg (GKDBusWorker *worker,
1326 struct kdbus_msg *msg)
1328 struct kdbus_item *item = NULL;
1330 KDBUS_ITEM_FOREACH(item, msg, items)
1334 case KDBUS_ITEM_ID_ADD:
1335 case KDBUS_ITEM_ID_REMOVE:
1336 case KDBUS_ITEM_NAME_ADD:
1337 case KDBUS_ITEM_NAME_REMOVE:
1338 case KDBUS_ITEM_NAME_CHANGE:
1339 //size = g_kdbus_NameOwnerChanged_generate (worker, item);
1340 g_error ("'NameOwnerChanged'");
1343 case KDBUS_ITEM_REPLY_TIMEOUT:
1344 case KDBUS_ITEM_REPLY_DEAD:
1345 //size = g_kdbus_KernelMethodError_generate (worker, item);
1346 g_error ("'KernelMethodError'");
1350 g_warning ("Unknown field in kernel message - %lld", item->type);
1355 /* Override information from the user header with data from the kernel */
1356 g_string_printf (worker->msg_sender, "org.freedesktop.DBus");
1358 /* for destination */
1359 if (worker->kmsg->dst_id == KDBUS_DST_ID_BROADCAST)
1360 /* for broadcast messages we don't have to set destination */
1362 else if (worker->kmsg->dst_id == KDBUS_DST_ID_NAME)
1363 g_string_printf (worker->msg_destination, ":1.%" G_GUINT64_FORMAT, (guint64) worker->unique_id);
1365 g_string_printf (worker->msg_destination, ":1.%" G_GUINT64_FORMAT, (guint64) worker->kmsg->dst_id);
1373 * g_kdbus_decode_dbus_msg:
1376 static GDBusMessage *
1377 g_kdbus_decode_dbus_msg (GKDBusWorker *worker,
1378 struct kdbus_msg *msg)
1380 GDBusMessage *message;
1381 struct kdbus_item *item;
1382 gssize data_size = 0;
1383 GArray *body_vectors;
1389 GVariantIter *fields_iter;
1390 guint8 endianness, type, flags, version;
1396 message = g_dbus_message_new ();
1398 body_vectors = g_array_new (FALSE, FALSE, sizeof (GVariantVector));
1400 tmp = g_strdup_printf (":1.%"G_GUINT64_FORMAT, (guint64) msg->src_id);
1401 g_dbus_message_set_sender (message, tmp);
1407 KDBUS_ITEM_FOREACH(item, msg, items)
1409 if (item->size <= KDBUS_ITEM_HEADER_SIZE)
1410 g_error("[KDBUS] %llu bytes - invalid data record\n", item->size);
1412 data_size = item->size - KDBUS_ITEM_HEADER_SIZE;
1416 /* KDBUS_ITEM_DST_NAME */
1417 case KDBUS_ITEM_DST_NAME:
1418 /* Classic D-Bus doesn't make this known to the receiver, so
1419 * we don't do it here either (for compatibility with the
1424 /* KDBUS_ITEM_PALOAD_OFF */
1425 case KDBUS_ITEM_PAYLOAD_OFF:
1427 GVariantVector vector;
1430 /* We want to make sure the bytes are aligned the same as
1431 * they would be if they appeared in a contiguously
1432 * allocated chunk of aligned memory.
1434 * We decide what the alignment 'should' be by consulting
1435 * body_size, which has been tracking the total size of the
1436 * message up to this point.
1438 * We then play around with the pointer by removing as many
1439 * bytes as required to get it to the proper alignment (and
1440 * copy extra bytes accordingly). This means that we will
1441 * grab some extra data in the 'bytes', but it won't be
1442 * shared with GVariant (which means there is no chance of
1443 * it being accidentally retransmitted).
1445 * The kernel does the same thing, so make sure we get the
1446 * expected result. Because of the kernel doing the same,
1447 * the result is that we will always be rounding-down to a
1448 * multiple of 8 for the pointer, which means that the
1449 * pointer will always be valid, assuming the original
1452 * We could fix this with a new GBytes constructor that took
1453 * 'flavour' as a parameter, but it's not worth it...
1455 flavour = body_size & 7;
1456 g_assert ((item->vec.offset & 7) == flavour);
1458 vector.gbytes = g_bytes_new (((guchar *) worker->kdbus_buffer) + item->vec.offset - flavour, item->vec.size + flavour);
1459 vector.data.pointer = g_bytes_get_data (vector.gbytes, NULL);
1460 vector.data.pointer += flavour;
1461 vector.size = item->vec.size;
1463 g_array_append_val (body_vectors, vector);
1464 body_size += vector.size;
1468 /* KDBUS_ITEM_PAYLOAD_MEMFD */
1469 case KDBUS_ITEM_PAYLOAD_MEMFD:
1471 GVariantVector vector;
1475 vector.gbytes = g_bytes_new_take_zero_copy_fd (item->memfd.fd);
1476 data = g_bytes_get_data (vector.gbytes, &size);
1478 g_assert (item->memfd.start + item->memfd.size <= size);
1480 vector.data.pointer = data + item->memfd.start;
1481 vector.size = item->memfd.size;
1483 g_array_append_val (body_vectors, vector);
1484 body_size += vector.size;
1488 /* KDBUS_ITEM_FDS */
1489 case KDBUS_ITEM_FDS:
1491 GUnixFDList *fd_list;
1493 fd_list = g_unix_fd_list_new_from_array (item->fds, data_size / sizeof (int));
1494 g_dbus_message_set_unix_fd_list (message, fd_list);
1495 g_object_unref (fd_list);
1499 /* All of the following items, like CMDLINE,
1500 CGROUP, etc. need some GDBUS API extensions and
1501 should be implemented in the future */
1502 case KDBUS_ITEM_TIMESTAMP:
1504 g_print ("time: seq %llu mon %llu real %llu\n",
1505 item->timestamp.seqnum, item->timestamp.monotonic_ns, item->timestamp.realtime_ns);
1506 //g_dbus_message_set_timestamp (message, item->timestamp.monotonic_ns / 1000);
1507 //g_dbus_message_set_serial (message, item->timestamp.seqnum);
1511 case KDBUS_ITEM_CREDS:
1513 g_print ("creds: u%u eu %u su%u fsu%u g%u eg%u sg%u fsg%u\n",
1514 item->creds.uid, item->creds.euid, item->creds.suid, item->creds.fsuid,
1515 item->creds.gid, item->creds.egid, item->creds.sgid, item->creds.fsgid);
1519 case KDBUS_ITEM_PIDS:
1520 case KDBUS_ITEM_PID_COMM:
1521 case KDBUS_ITEM_TID_COMM:
1522 case KDBUS_ITEM_EXE:
1523 case KDBUS_ITEM_CMDLINE:
1524 case KDBUS_ITEM_CGROUP:
1525 case KDBUS_ITEM_AUDIT:
1526 case KDBUS_ITEM_CAPS:
1527 case KDBUS_ITEM_SECLABEL:
1528 case KDBUS_ITEM_CONN_DESCRIPTION:
1529 case KDBUS_ITEM_AUXGROUPS:
1530 case KDBUS_ITEM_OWNED_NAME:
1531 case KDBUS_ITEM_NAME:
1532 g_print ("unhandled %04x\n", (int) item->type);
1536 g_error ("[KDBUS] DBUS_PAYLOAD: Unknown filed - %lld", item->type);
1541 body = GLIB_PRIVATE_CALL(g_variant_from_vectors) (G_VARIANT_TYPE ("((yyyyuta{tv})v)"),
1542 (GVariantVector *) body_vectors->data,
1543 body_vectors->len, body_size, FALSE);
1546 for (i = 0; i < body_vectors->len; i++)
1547 g_bytes_unref (g_array_index (body_vectors, GVariantVector, i).gbytes);
1549 g_array_free (body_vectors, TRUE);
1551 parts[0] = g_variant_get_child_value (body, 0);
1552 parts[1] = g_variant_get_child_value (body, 1);
1553 g_variant_unref (body);
1555 body = g_variant_get_variant (parts[1]);
1556 g_variant_unref (parts[1]);
1557 g_dbus_message_set_body (message, body);
1558 g_variant_unref (body);
1560 g_variant_get (parts[0], "(yyyyuta{tv})", &endianness, &type, &flags, &version, NULL, &serial, &fields_iter);
1561 g_variant_unref (parts[0]);
1563 while (g_variant_iter_loop (fields_iter, "{tv}", &key, &value))
1564 g_dbus_message_set_header (message, key, value);
1566 g_dbus_message_set_flags (message, flags);
1567 g_dbus_message_set_serial (message, serial);
1568 g_dbus_message_set_message_type (message, type);
1570 g_print ("Received:\n%s\n", g_dbus_message_print (message, 2));
1581 _g_kdbus_receive (GKDBusWorker *kdbus,
1582 GCancellable *cancellable,
1585 struct kdbus_cmd_recv recv;
1586 struct kdbus_msg *msg;
1588 memset (&recv, 0, sizeof recv);
1589 recv.size = sizeof (recv);
1591 if (g_cancellable_set_error_if_cancelled (cancellable, error))
1595 if (ioctl(kdbus->fd, KDBUS_CMD_RECV, &recv) < 0)
1600 if (errno == EAGAIN)
1603 g_set_error (error, G_IO_ERROR,
1604 g_io_error_from_errno (errno),
1605 _("Error while receiving message: %s"),
1606 g_strerror (errno));
1610 msg = (struct kdbus_msg *)((guint8 *)kdbus->kdbus_buffer + recv.reply.offset);
1612 if (msg->payload_type == KDBUS_PAYLOAD_DBUS)
1613 g_kdbus_decode_dbus_msg (kdbus, msg);
1614 else if (msg->payload_type == KDBUS_PAYLOAD_KERNEL)
1615 g_kdbus_decode_kernel_msg (kdbus, msg);
1620 G_DBUS_ERROR_FAILED,
1621 _("Received unknown payload type"));
1625 ioctl(kdbus->fd, KDBUS_CMD_FREE, &recv.reply.offset);
1631 g_kdbus_msg_append_item (struct kdbus_msg *msg,
1636 struct kdbus_item *item;
1639 item_size = size + G_STRUCT_OFFSET(struct kdbus_item, data);
1641 if (msg->size + item_size > KDBUS_MSG_MAX_SIZE)
1645 msg->size += (-msg->size) & 7;
1646 item = (struct kdbus_item *) ((guchar *) msg + msg->size);
1648 item->size = item_size;
1649 memcpy (item->data, data, size);
1651 msg->size += item_size;
1657 g_kdbus_msg_append_payload_vec (struct kdbus_msg *msg,
1661 struct kdbus_vec vec = {
1663 .address = (gsize) data
1666 return g_kdbus_msg_append_item (msg, KDBUS_ITEM_PAYLOAD_VEC, &vec, sizeof vec);
1670 g_kdbus_msg_append_payload_memfd (struct kdbus_msg *msg,
1675 struct kdbus_memfd mfd = {
1681 return g_kdbus_msg_append_item (msg, KDBUS_ITEM_PAYLOAD_MEMFD, &mfd, sizeof mfd);
1685 #include "dbusheader.h"
1687 void dump_header (gconstpointer data, gsize size) ;
1689 dump_header (gconstpointer data,
1692 GDBusMessageHeaderFieldsIterator iter;
1693 GDBusMessageHeader header;
1695 header = g_dbus_message_header_new (data, size);
1696 g_print ("header e/%c t/%u f/x%x v/%u s/%"G_GUINT64_FORMAT"\n",
1697 g_dbus_message_header_get_endian (header),
1698 g_dbus_message_header_get_type (header),
1699 g_dbus_message_header_get_flags (header),
1700 g_dbus_message_header_get_version (header),
1701 g_dbus_message_header_get_serial (header));
1703 iter = g_dbus_message_header_iterate_fields (header);
1705 while (g_dbus_message_header_fields_iterator_next (&iter))
1707 const gchar *string;
1711 key = g_dbus_message_header_fields_iterator_get_key (iter);
1715 case G_DBUS_MESSAGE_HEADER_FIELD_PATH:
1716 if (g_dbus_message_header_fields_iterator_get_value_as_object_path (iter, &string))
1717 g_print (" path: %s\n", string);
1719 g_print (" path: <<invalid string>>\n");
1722 case G_DBUS_MESSAGE_HEADER_FIELD_INTERFACE:
1723 if (g_dbus_message_header_fields_iterator_get_value_as_string (iter, &string))
1724 g_print (" interface: %s\n", string);
1726 g_print (" interface: <<invalid string>>\n");
1729 case G_DBUS_MESSAGE_HEADER_FIELD_MEMBER:
1730 if (g_dbus_message_header_fields_iterator_get_value_as_string (iter, &string))
1731 g_print (" member: %s\n", string);
1733 g_print (" member: <<invalid string>>\n");
1736 case G_DBUS_MESSAGE_HEADER_FIELD_ERROR_NAME:
1737 if (g_dbus_message_header_fields_iterator_get_value_as_string (iter, &string))
1738 g_print (" error: %s\n", string);
1740 g_print (" error: <<invalid string>>\n");
1743 case G_DBUS_MESSAGE_HEADER_FIELD_REPLY_SERIAL:
1744 if (g_dbus_message_header_fields_iterator_get_value_as_string (iter, &string))
1745 g_print (" serial: %s\n", string);
1747 g_print (" serial: <<invalid string>>\n");
1750 case G_DBUS_MESSAGE_HEADER_FIELD_DESTINATION:
1751 if (g_dbus_message_header_fields_iterator_get_value_as_string (iter, &string))
1752 g_print (" destination: %s\n", string);
1754 g_print (" destination: <<invalid string>>\n");
1757 case G_DBUS_MESSAGE_HEADER_FIELD_SENDER:
1758 if (g_dbus_message_header_fields_iterator_get_value_as_string (iter, &string))
1759 g_print (" sender: %s\n", string);
1761 g_print (" sender: <<invalid string>>\n");
1765 g_print ("unknown field code %"G_GUINT64_FORMAT"\n", key);
1766 g_assert_not_reached ();
1777 * Returns: size of data sent or -1 when error
1780 _g_kdbus_send (GKDBusWorker *kdbus,
1781 GDBusMessage *message,
1784 struct kdbus_msg *msg = alloca (KDBUS_MSG_MAX_SIZE);
1785 GVariantVectors body_vectors;
1786 struct kdbus_cmd_send send;
1788 g_return_val_if_fail (G_IS_KDBUS_WORKER (kdbus), -1);
1790 /* fill in as we go... */
1791 memset (msg, 0, sizeof (struct kdbus_msg));
1792 msg->size = sizeof (struct kdbus_msg);
1793 msg->payload_type = KDBUS_PAYLOAD_DBUS;
1794 msg->src_id = kdbus->unique_id;
1795 msg->cookie = g_dbus_message_get_serial(message);
1797 /* Message destination */
1799 const gchar *dst_name;
1801 dst_name = g_dbus_message_get_destination (message);
1803 if (dst_name != NULL)
1805 if (g_dbus_is_unique_name (dst_name))
1807 if (dst_name[1] != '1' || dst_name[2] != '.')
1809 g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_NAME_HAS_NO_OWNER,
1810 "Invalid unique D-Bus name '%s'", dst_name);
1814 /* We already know that it passes the checks for unique
1815 * names, so no need to perform error checking on strtoull.
1817 msg->dst_id = strtoull (dst_name + 3, NULL, 10);
1822 g_kdbus_msg_append_item (msg, KDBUS_ITEM_DST_NAME, dst_name, strlen (dst_name) + 1);
1823 msg->dst_id = KDBUS_DST_ID_NAME;
1827 msg->dst_id = KDBUS_DST_ID_BROADCAST;
1830 /* File descriptors */
1832 GUnixFDList *fd_list;
1834 fd_list = g_dbus_message_get_unix_fd_list (message);
1836 if (fd_list != NULL)
1841 fds = g_unix_fd_list_peek_fds (fd_list, &n_fds);
1844 g_kdbus_msg_append_item (msg, KDBUS_ITEM_FDS, fds, sizeof (gint) * n_fds);
1850 struct dbus_fixed_header fh;
1851 GHashTableIter header_iter;
1852 GVariantBuilder builder;
1853 gpointer key, value;
1857 fh.endian = (G_BYTE_ORDER == G_LITTLE_ENDIAN) ? 'l': 'B';
1858 fh.type = g_dbus_message_get_message_type (message);
1859 fh.flags = g_dbus_message_get_flags (message);
1862 fh.serial = g_dbus_message_get_serial (message);
1863 parts[0] = g_variant_new_from_data (DBUS_FIXED_HEADER_TYPE, &fh, sizeof fh, TRUE, NULL, NULL);
1865 g_dbus_message_init_header_iter (message, &header_iter);
1866 g_variant_builder_init (&builder, DBUS_EXTENDED_HEADER_TYPE);
1868 /* We set the sender field to the correct value for ourselves */
1869 g_variant_builder_add (&builder, "{tv}",
1870 (guint64) G_DBUS_MESSAGE_HEADER_FIELD_SENDER,
1871 g_variant_new_printf (":1.%"G_GUINT64_FORMAT, kdbus->unique_id));
1873 while (g_hash_table_iter_next (&header_iter, &key, &value))
1875 guint64 key_int = (gsize) key;
1879 /* These are the normal header fields that get passed
1882 case G_DBUS_MESSAGE_HEADER_FIELD_PATH:
1883 case G_DBUS_MESSAGE_HEADER_FIELD_INTERFACE:
1884 case G_DBUS_MESSAGE_HEADER_FIELD_MEMBER:
1885 case G_DBUS_MESSAGE_HEADER_FIELD_ERROR_NAME:
1886 case G_DBUS_MESSAGE_HEADER_FIELD_REPLY_SERIAL:
1887 case G_DBUS_MESSAGE_HEADER_FIELD_DESTINATION:
1888 g_variant_builder_add (&builder, "{tv}", key_int, value);
1889 /* This is a little bit gross.
1891 * We must send the header part of the message in a single
1892 * vector as per kdbus rules, but the GVariant serialiser
1893 * code will split any item >= 128 bytes into its own
1894 * vector to save the copy.
1896 * No header field should be that big anyway... right?
1898 g_assert_cmpint (g_variant_get_size (value), <, 128);
1901 /* We send this one unconditionally, but set it ourselves */
1902 case G_DBUS_MESSAGE_HEADER_FIELD_SENDER:
1905 /* We don't send these at all in GVariant format */
1906 case G_DBUS_MESSAGE_HEADER_FIELD_SIGNATURE:
1907 case G_DBUS_MESSAGE_HEADER_FIELD_NUM_UNIX_FDS:
1911 g_assert_not_reached ();
1914 parts[1] = g_variant_builder_end (&builder);
1916 body = g_dbus_message_get_body (message);
1918 body = g_variant_new ("()");
1919 parts[2] = g_variant_new_variant (body);
1921 body = g_variant_ref_sink (g_variant_new_tuple (parts, G_N_ELEMENTS (parts)));
1922 GLIB_PRIVATE_CALL(g_variant_to_vectors) (body, &body_vectors);
1924 /* Sanity check to make sure the header is really contiguous:
1926 * - we must have at least one vector in the output
1927 * - the first vector must completely contain at least the header
1929 g_assert_cmpint (body_vectors.vectors->len, >, 0);
1930 g_assert_cmpint (g_array_index (body_vectors.vectors, GVariantVector, 0).size, >=,
1931 g_variant_get_size (parts[0]) + g_variant_get_size (parts[1]));
1933 g_variant_unref (body);
1939 for (i = 0; i < body_vectors.vectors->len; i++)
1941 GVariantVector vector = g_array_index (body_vectors.vectors, GVariantVector, i);
1947 fd = g_bytes_get_zero_copy_fd (vector.gbytes);
1951 const guchar *bytes_data;
1954 bytes_data = g_bytes_get_data (vector.gbytes, &bytes_size);
1956 if (bytes_data <= vector.data.pointer && vector.data.pointer + vector.size <= bytes_data + bytes_size)
1958 if (!g_kdbus_msg_append_payload_memfd (msg, fd, vector.data.pointer - bytes_data, vector.size))
1963 if (!g_kdbus_msg_append_payload_vec (msg, vector.data.pointer, vector.size))
1969 if (!g_kdbus_msg_append_payload_vec (msg, vector.data.pointer, vector.size))
1974 if (!g_kdbus_msg_append_payload_vec (msg, body_vectors.extra_bytes->data + vector.data.offset, vector.size))
1982 msg->flags = ((g_dbus_message_get_flags (message) & G_DBUS_MESSAGE_FLAGS_NO_REPLY_EXPECTED) ? 0 : KDBUS_MSG_EXPECT_REPLY) |
1983 ((g_dbus_message_get_flags (message) & G_DBUS_MESSAGE_FLAGS_NO_AUTO_START) ? KDBUS_MSG_NO_AUTO_START : 0);
1985 if ((msg->flags) & KDBUS_MSG_EXPECT_REPLY)
1986 msg->timeout_ns = 2000000000;
1988 msg->cookie_reply = g_dbus_message_get_reply_serial(message);
1992 if (dst_id == KDBUS_DST_ID_BROADCAST)
1994 struct kdbus_bloom_filter *bloom_filter;
1996 bloom_filter = g_kdbus_append_bloom (&item, kdbus->bloom_size);
1997 g_kdbus_setup_bloom (kdbus, message, bloom_filter);
2001 send.size = sizeof (send);
2003 send.msg_address = (gsize) msg;
2009 if (ioctl(kdbus->fd, KDBUS_CMD_SEND, &send))
2012 GString *error_name;
2013 error_name = g_string_new (NULL);
2017 g_string_free (error_name,TRUE);
2020 else if (errno == ENXIO)
2022 g_string_printf (error_name, "Name %s does not exist", g_dbus_message_get_destination(dbus_msg));
2023 g_kdbus_generate_local_error (worker,
2025 g_variant_new ("(s)",error_name->str),
2026 G_DBUS_ERROR_SERVICE_UNKNOWN);
2027 g_string_free (error_name,TRUE);
2030 else if ((errno == ESRCH) || (errno == EADDRNOTAVAIL))
2032 if (kmsg->flags & KDBUS_MSG_FLAGS_NO_AUTO_START)
2034 g_string_printf (error_name, "Name %s does not exist", g_dbus_message_get_destination(dbus_msg));
2035 g_kdbus_generate_local_error (worker,
2037 g_variant_new ("(s)",error_name->str),
2038 G_DBUS_ERROR_SERVICE_UNKNOWN);
2039 g_string_free (error_name,TRUE);
2044 g_string_printf (error_name, "The name %s was not provided by any .service files", g_dbus_message_get_destination(dbus_msg));
2045 g_kdbus_generate_local_error (worker,
2047 g_variant_new ("(s)",error_name->str),
2048 G_DBUS_ERROR_SERVICE_UNKNOWN);
2049 g_string_free (error_name,TRUE);
2054 g_print ("[KDBUS] ioctl error sending kdbus message:%d (%m)\n",errno);
2055 g_set_error (error, G_IO_ERROR, g_io_error_from_errno(errno), _("Error sending message - KDBUS_CMD_MSG_SEND error"));
2057 perror("ioctl send");
2058 g_error ("IOCTL SEND: %d\n",errno);
2065 /* We end up here if:
2066 * - too many kdbus_items
2067 * - too large kdbus_msg size
2068 * - too much vector data
2070 * We need to compact the message before sending it.
2072 g_assert_not_reached ();
2076 g_kdbus_worker_new (const gchar *address,
2079 GDBusCapabilityFlags capabilities,
2080 gboolean initially_frozen,
2081 GDBusWorkerMessageReceivedCallback message_received_callback,
2082 GDBusWorkerMessageAboutToBeSentCallback message_about_to_be_sent_callback,
2083 GDBusWorkerDisconnectedCallback disconnected_callback,
2087 GKDBusWorker *worker;
2089 worker = g_object_new (G_TYPE_KDBUS_WORKER, NULL);
2090 if (!_g_kdbus_open (worker, address, error))
2092 g_object_unref (worker);
2100 g_kdbus_worker_unfreeze (GKDBusWorker *worker)
2105 g_kdbus_worker_send_message (GKDBusWorker *worker,
2106 GDBusMessage *message,
2109 return _g_kdbus_send (worker, message, error);
2113 g_kdbus_worker_stop (GKDBusWorker *worker)
2118 g_kdbus_worker_flush_sync (GKDBusWorker *worker)
2123 g_kdbus_worker_close (GKDBusWorker *worker,
2124 GCancellable *cancellable,
2125 GSimpleAsyncResult *result)