26#include "dbus-internals.h"
27#include "dbus-marshal-recursive.h"
28#include "dbus-marshal-validate.h"
29#include "dbus-marshal-byteswap.h"
30#include "dbus-marshal-header.h"
31#include "dbus-signature.h"
32#include "dbus-message-private.h"
33#include "dbus-object-tree.h"
34#include "dbus-memory.h"
36#include "dbus-threads-internal.h"
37#ifdef HAVE_UNIX_FD_PASSING
38#include "dbus-sysdeps.h"
39#include "dbus-sysdeps-unix.h"
44#define _DBUS_TYPE_IS_STRINGLIKE(type) \
45 (type == DBUS_TYPE_STRING || type == DBUS_TYPE_SIGNATURE || \
46 type == DBUS_TYPE_OBJECT_PATH)
48static void dbus_message_finalize (
DBusMessage *message);
60#ifdef DBUS_ENABLE_EMBEDDED_TESTS
62_dbus_enable_message_cache (
void)
64 static int enabled = -1;
79 _dbus_warn (
"DBUS_MESSAGE_CACHE should be 0 or 1 if set, not '%s'",
88# define _dbus_enable_message_cache() (TRUE)
91#ifndef _dbus_message_trace_ref
98 static int enabled = -1;
100 _dbus_trace_ref (
"DBusMessage", message, old_refcount, new_refcount, why,
101 "DBUS_MESSAGE_TRACE", &enabled);
108_DBUS_STRING_DEFINE_STATIC(_dbus_empty_signature_str,
"");
114 DBUS_MESSAGE_ITER_TYPE_READER = 3,
115 DBUS_MESSAGE_ITER_TYPE_WRITER = 7
139#if DBUS_SIZEOF_VOID_P > 8
145#define CHECK_DBUS_1_10_BINARY_COMPATIBILITY 0
147#define CHECK_DBUS_1_10_BINARY_COMPATIBILITY 1
186 *type_str_p = &_dbus_empty_signature_str;
205 if (byte_order == DBUS_COMPILER_BYTE_ORDER)
208 _dbus_verbose (
"Swapping message into compiler byte order\n");
210 get_const_signature (&message->
header, &type_str, &type_pos);
214 DBUS_COMPILER_BYTE_ORDER,
219 DBUS_COMPILER_BYTE_ORDER);
228#define ensure_byte_order(message) _dbus_message_byteswap (message)
248 *body = &message->
body;
266#ifdef HAVE_UNIX_FD_PASSING
267 *fds = message->unix_fds;
268 *n_fds = message->n_unix_fds;
302 _dbus_return_if_fail (message !=
NULL);
303 _dbus_return_if_fail (!message->
locked);
337 _dbus_string_get_length (&message->
header.
data) +
338 _dbus_string_get_length (&message->
body);
340#ifdef HAVE_UNIX_FD_PASSING
341 message->unix_fd_counter_delta = message->n_unix_fds;
345 _dbus_verbose (
"message has size %ld\n",
354#ifdef HAVE_UNIX_FD_PASSING
410#ifdef HAVE_UNIX_FD_PASSING
434 _dbus_string_get_length (&message->
body));
506#define MAX_MESSAGE_SIZE_TO_CACHE 10 * _DBUS_ONE_KILOBYTE
509#define MAX_MESSAGE_CACHE_SIZE 5
513static int message_cache_count = 0;
517dbus_message_cache_shutdown (
void *data)
523 "before registering a shutdown function");
528 if (message_cache[i])
529 dbus_message_finalize (message_cache[i]);
534 message_cache_count = 0;
535 message_cache_shutdown_registered =
FALSE;
548dbus_message_get_cached (
void)
564 if (message_cache_count == 0)
579 if (message_cache[i])
581 message = message_cache[i];
582 message_cache[i] =
NULL;
583 message_cache_count -= 1;
601#ifdef HAVE_UNIX_FD_PASSING
603close_unix_fds(
int *fds,
unsigned *n_fds)
613 for (i = 0; i < *n_fds; i++)
629free_counter (
void *element,
636#ifdef HAVE_UNIX_FD_PASSING
650dbus_message_cache_or_finalize (
DBusMessage *message)
663 free_counter, message);
666#ifdef HAVE_UNIX_FD_PASSING
667 close_unix_fds(message->unix_fds, &message->n_unix_fds);
677 "the first time we constructed a message");
680 if (!message_cache_shutdown_registered)
690 message_cache[i] =
NULL;
694 message_cache_shutdown_registered =
TRUE;
699 if (!_dbus_enable_message_cache ())
702 if ((_dbus_string_get_length (&message->
header.
data) +
703 _dbus_string_get_length (&message->
body)) >
712 while (message_cache[i] !=
NULL)
718 message_cache[i] = message;
719 message_cache_count += 1;
721#ifndef DBUS_DISABLE_CHECKS
731 dbus_message_finalize (message);
755 _dbus_return_if_fail (iter !=
NULL);
766#if defined(DBUS_ENABLE_CHECKS) || defined(DBUS_ENABLE_ASSERT)
781 "closed, or is uninitialized or corrupt");
787 if (iter->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER)
797 else if (iter->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER)
815 _dbus_warn_check_failed (
"dbus message iterator invalid because the message has been modified (or perhaps the iterator is just uninitialized)");
842 int spec_type, msg_type, i, j;
850 spec_type = first_arg_type;
856 va_copy (copy_args, var_args);
862 if (msg_type != spec_type)
865 "Argument %d is specified to be of type \"%s\", but "
866 "is actually of type \"%s\"\n", i,
875#ifdef HAVE_UNIX_FD_PASSING
879 pfd = va_arg (var_args,
int*);
887 "Message refers to file descriptor at index %i,"
888 "but has only %i descriptors attached.\n",
900 "Platform does not support file desciptor passing.\n");
908 ptr = va_arg (var_args,
void *);
918 int spec_element_type;
923 spec_element_type = va_arg (var_args,
int);
926 if (spec_element_type != element_type)
929 "Argument %d is specified to be an array of \"%s\", but "
930 "is actually an array of \"%s\"\n",
941 ptr = va_arg (var_args,
const void **);
942 n_elements_p = va_arg (var_args,
int*);
951 else if (_DBUS_TYPE_IS_STRINGLIKE (spec_element_type))
957 str_array_p = va_arg (var_args,
char***);
958 n_elements_p = va_arg (var_args,
int*);
973 str_array =
dbus_new0 (
char*, n_elements + 1);
974 if (str_array ==
NULL)
976 _DBUS_SET_OOM (error);
984 while (j < n_elements)
991 if (str_array[j] ==
NULL)
994 _DBUS_SET_OOM (error);
1008 *str_array_p = str_array;
1009 *n_elements_p = n_elements;
1011#ifndef DBUS_DISABLE_CHECKS
1014 _dbus_warn (
"you can't read arrays of container types (struct, variant, array) with %s for now",
1015 _DBUS_FUNCTION_NAME);
1020#ifndef DBUS_DISABLE_CHECKS
1023 _dbus_warn (
"you can only read arrays and basic types with %s for now",
1024 _DBUS_FUNCTION_NAME);
1032 spec_type = va_arg (var_args,
int);
1036 "Message has only %d arguments, but more were expected", i);
1050 spec_type = first_arg_type;
1057#ifdef HAVE_UNIX_FD_PASSING
1060 pfd = va_arg (copy_args,
int *);
1072 va_arg (copy_args,
const void *);
1076 int spec_element_type;
1078 spec_element_type = va_arg (copy_args,
int);
1082 va_arg (copy_args,
const void **);
1083 va_arg (copy_args,
int *);
1085 else if (_DBUS_TYPE_IS_STRINGLIKE (spec_element_type))
1087 char ***str_array_p;
1089 str_array_p = va_arg (copy_args,
char ***);
1091 va_arg (copy_args,
int *);
1094 *str_array_p =
NULL;
1098 spec_type = va_arg (copy_args,
int);
1168 _dbus_return_val_if_fail (message !=
NULL, 0);
1187 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
1188 _dbus_return_val_if_fail (!message->
locked,
FALSE);
1189 _dbus_return_val_if_fail (reply_serial != 0,
FALSE);
1191 value.
u32 = reply_serial;
1210 _dbus_return_val_if_fail (message !=
NULL, 0);
1230 free_counter, message);
1236#ifdef HAVE_UNIX_FD_PASSING
1237 close_unix_fds(message->unix_fds, &message->n_unix_fds);
1247dbus_message_new_empty_header (
void)
1252 message = dbus_message_get_cached ();
1254 if (message !=
NULL)
1262 if (message ==
NULL)
1264#ifndef DBUS_DISABLE_CHECKS
1268#ifdef HAVE_UNIX_FD_PASSING
1269 message->unix_fds =
NULL;
1270 message->n_unix_fds_allocated = 0;
1276 _dbus_message_trace_ref (message, 0, 1,
"new_empty_header");
1279#ifndef DBUS_DISABLE_CHECKS
1286#ifdef HAVE_UNIX_FD_PASSING
1287 message->n_unix_fds = 0;
1288 message->n_unix_fds_allocated = 0;
1289 message->unix_fd_counter_delta = 0;
1338 message = dbus_message_new_empty_header ();
1339 if (message ==
NULL)
1343 DBUS_COMPILER_BYTE_ORDER,
1383 _dbus_return_val_if_fail (path !=
NULL,
NULL);
1384 _dbus_return_val_if_fail (method !=
NULL,
NULL);
1385 _dbus_return_val_if_fail (destination ==
NULL ||
1386 _dbus_check_is_valid_bus_name (destination),
NULL);
1387 _dbus_return_val_if_fail (_dbus_check_is_valid_path (path),
NULL);
1388 _dbus_return_val_if_fail (iface ==
NULL ||
1389 _dbus_check_is_valid_interface (iface),
NULL);
1390 _dbus_return_val_if_fail (_dbus_check_is_valid_member (method),
NULL);
1392 message = dbus_message_new_empty_header ();
1393 if (message ==
NULL)
1397 DBUS_COMPILER_BYTE_ORDER,
1399 destination, path, iface, method,
NULL))
1421 _dbus_return_val_if_fail (method_call !=
NULL,
NULL);
1427 message = dbus_message_new_empty_header ();
1428 if (message ==
NULL)
1432 DBUS_COMPILER_BYTE_ORDER,
1473 _dbus_return_val_if_fail (path !=
NULL,
NULL);
1474 _dbus_return_val_if_fail (iface !=
NULL,
NULL);
1475 _dbus_return_val_if_fail (name !=
NULL,
NULL);
1476 _dbus_return_val_if_fail (_dbus_check_is_valid_path (path),
NULL);
1477 _dbus_return_val_if_fail (_dbus_check_is_valid_interface (iface),
NULL);
1478 _dbus_return_val_if_fail (_dbus_check_is_valid_member (name),
NULL);
1480 message = dbus_message_new_empty_header ();
1481 if (message ==
NULL)
1485 DBUS_COMPILER_BYTE_ORDER,
1514 const char *error_name,
1515 const char *error_message)
1521 _dbus_return_val_if_fail (reply_to !=
NULL,
NULL);
1522 _dbus_return_val_if_fail (error_name !=
NULL,
NULL);
1523 _dbus_return_val_if_fail (_dbus_check_is_valid_error_name (error_name),
NULL);
1531 message = dbus_message_new_empty_header ();
1532 if (message ==
NULL)
1536 DBUS_COMPILER_BYTE_ORDER,
1553 if (error_message !=
NULL)
1586 const char *error_name,
1587 const char *error_format,
1594 _dbus_return_val_if_fail (reply_to !=
NULL,
NULL);
1595 _dbus_return_val_if_fail (error_name !=
NULL,
NULL);
1596 _dbus_return_val_if_fail (_dbus_check_is_valid_error_name (error_name),
NULL);
1601 va_start (args, error_format);
1605 _dbus_string_get_const_data (&str));
1634 _dbus_return_val_if_fail (message !=
NULL,
NULL);
1643#ifndef DBUS_DISABLE_CHECKS
1654 _dbus_string_get_length (&message->
body)))
1665#ifdef HAVE_UNIX_FD_PASSING
1666 retval->unix_fds =
dbus_new(
int, message->n_unix_fds);
1667 if (retval->unix_fds ==
NULL && message->n_unix_fds > 0)
1670 retval->n_unix_fds_allocated = message->n_unix_fds;
1672 for (retval->n_unix_fds = 0;
1673 retval->n_unix_fds < message->n_unix_fds;
1674 retval->n_unix_fds++)
1676 retval->unix_fds[retval->n_unix_fds] =
_dbus_dup(message->unix_fds[retval->n_unix_fds],
NULL);
1678 if (retval->unix_fds[retval->n_unix_fds] < 0)
1684 _dbus_message_trace_ref (retval, 0, 1,
"copy");
1691#ifdef HAVE_UNIX_FD_PASSING
1692 close_unix_fds(retval->unix_fds, &retval->n_unix_fds);
1714 _dbus_return_val_if_fail (message !=
NULL,
NULL);
1720 _dbus_message_trace_ref (message, old_refcount, old_refcount + 1,
"ref");
1737 _dbus_return_if_fail (message !=
NULL);
1739 _dbus_return_if_fail (!message->
in_cache);
1745 _dbus_message_trace_ref (message, old_refcount, old_refcount - 1,
"unref");
1747 if (old_refcount == 1)
1750 dbus_message_cache_or_finalize (message);
1848 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
1850 va_start (var_args, first_arg_type);
1880 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
1882 type = first_arg_type;
1891 value = va_arg (var_args,
const void *);
1904 element_type = va_arg (var_args,
int);
1906 buf[0] = element_type;
1920 value = va_arg (var_args,
const void **);
1921 n_elements = va_arg (var_args,
int);
1931 else if (_DBUS_TYPE_IS_STRINGLIKE (element_type))
1933 const char ***value_p;
1938 value_p = va_arg (var_args,
const char***);
1939 n_elements = va_arg (var_args,
int);
1944 while (i < n_elements)
1957 _dbus_warn (
"arrays of %s can't be appended with %s for now",
1959 _DBUS_FUNCTION_NAME);
1967#ifndef DBUS_DISABLE_CHECKS
1970 _dbus_warn (
"type %s isn't supported yet in %s",
1976 type = va_arg (var_args,
int);
2038 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
2039 _dbus_return_val_if_error_is_set (error,
FALSE);
2041 va_start (var_args, first_arg_type);
2066 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
2067 _dbus_return_val_if_error_is_set (error,
FALSE);
2074_dbus_message_iter_init_common (
DBusMessage *message,
2082#if CHECK_DBUS_1_10_BINARY_COMPATIBILITY
2093#if DBUS_SIZEOF_VOID_P > 8
2094 _DBUS_STATIC_ASSERT (
sizeof (
DBusMessageIter) == 16 *
sizeof (
void *));
2097 4 *
sizeof (
void *) +
sizeof (
dbus_uint32_t) + 9 *
sizeof (
int));
2141 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
2142 _dbus_return_val_if_fail (iter !=
NULL,
FALSE);
2144 get_const_signature (&message->
header, &type_str, &type_pos);
2146 _dbus_message_iter_init_common (message, real,
2147 DBUS_MESSAGE_ITER_TYPE_READER);
2169 _dbus_return_val_if_fail (_dbus_message_iter_check (real),
FALSE);
2170 _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER,
FALSE);
2188 _dbus_return_val_if_fail (_dbus_message_iter_check (real),
FALSE);
2189 _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER,
FALSE);
2214 _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_READER,
FALSE);
2271 _dbus_return_if_fail (_dbus_message_iter_check (real));
2272 _dbus_return_if_fail (sub !=
NULL);
2298 _dbus_return_val_if_fail (_dbus_message_iter_check (real),
NULL);
2306 _dbus_string_get_const_data (sig) + start,
2368 _dbus_return_if_fail (_dbus_message_iter_check (real));
2369 _dbus_return_if_fail (value !=
NULL);
2373#ifdef HAVE_UNIX_FD_PASSING
2381 *((
int*) value) = -1;
2387 *((
int*) value) = -1;
2415 _dbus_return_val_if_fail (_dbus_message_iter_check (real), 0);
2425 n_elements = total_len / alignment;
2456 _dbus_return_val_if_fail (_dbus_message_iter_check (real), 0);
2502#ifndef DBUS_DISABLE_CHECKS
2505 _dbus_return_if_fail (_dbus_message_iter_check (real));
2506 _dbus_return_if_fail (value !=
NULL);
2532 _dbus_return_if_fail (message !=
NULL);
2533 _dbus_return_if_fail (iter !=
NULL);
2535 _dbus_message_iter_init_common (message, real,
2536 DBUS_MESSAGE_ITER_TYPE_WRITER);
2545 _dbus_string_get_length (&message->
body));
2561 int current_sig_pos;
2578 ¤t_sig, ¤t_sig_pos))
2585 current_len = _dbus_string_get_byte (current_sig, current_sig_pos);
2586 current_sig_pos += 1;
2617 str, _dbus_string_get_length (str));
2634 const char *v_STRING;
2651 v_STRING = _dbus_string_get_const_data (str);
2694#if defined(DBUS_ENABLE_CHECKS) || defined(DBUS_ENABLE_ASSERT)
2698 if (!_dbus_message_iter_check (iter))
2711#ifdef HAVE_UNIX_FD_PASSING
2721 if (m->n_unix_fds + n > m->n_unix_fds_allocated)
2727 k = (m->n_unix_fds + n) * 2;
2738 m->n_unix_fds_allocated = k;
2741 return m->unix_fds + m->n_unix_fds;
2772 _dbus_return_val_if_fail (_dbus_message_iter_append_check (real),
FALSE);
2773 _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER,
FALSE);
2775 _dbus_return_val_if_fail (value !=
NULL,
FALSE);
2777#ifndef DBUS_DISABLE_CHECKS
2782 const char *
const *string_p;
2787 _dbus_return_val_if_fail (_dbus_check_is_valid_utf8 (*string_p),
FALSE);
2792 _dbus_return_val_if_fail (_dbus_check_is_valid_path (*string_p),
FALSE);
2800 _dbus_string_get_length (&str));
2810 _dbus_return_val_if_fail (*bool_p == 0 || *bool_p == 1,
FALSE);
2820 if (!_dbus_message_iter_open_signature (real))
2825#ifdef HAVE_UNIX_FD_PASSING
2832 if (!(fds = expand_fd_array(real->
message, 1)))
2839 u = real->
message->n_unix_fds;
2847 real->
message->n_unix_fds += 1;
2874 if (!_dbus_message_iter_close_signature (real))
2924 _dbus_return_val_if_fail (_dbus_message_iter_append_check (real),
FALSE);
2925 _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER,
FALSE);
2928 _dbus_return_val_if_fail (value !=
NULL,
FALSE);
2929 _dbus_return_val_if_fail (n_elements >= 0,
FALSE);
2930 _dbus_return_val_if_fail (n_elements <=
2934#ifndef DBUS_DISABLE_CHECKS
2940 for (i = 0; i < n_elements; i++)
2942 _dbus_return_val_if_fail ((*bools)[i] == 0 || (*bools)[i] == 1,
FALSE);
2982 const char *contained_signature,
2991 _dbus_return_val_if_fail (sub !=
NULL,
FALSE);
2994 _dbus_message_real_iter_zero (real_sub);
2996 _dbus_return_val_if_fail (_dbus_message_iter_append_check (real),
FALSE);
2997 _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER,
FALSE);
3000 contained_signature ==
NULL) ||
3002 contained_signature ==
NULL) ||
3004 contained_signature !=
NULL) ||
3012 if (contained_signature !=
NULL)
3017 _dbus_string_get_length (&contained_str));
3025 contained_signature_validity = DBUS_VALID_BUT_INCOMPLETE;
3029 contained_signature ==
NULL ||
3033 if (!_dbus_message_iter_open_signature (real))
3039 if (contained_signature !=
NULL)
3057 _dbus_message_iter_abandon_signature (real);
3090 _dbus_return_val_if_fail (_dbus_message_iter_append_check (real),
FALSE);
3091 _dbus_return_val_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER,
FALSE);
3092 _dbus_return_val_if_fail (_dbus_message_iter_append_check (real_sub),
FALSE);
3093 _dbus_return_val_if_fail (real_sub->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER,
FALSE);
3097 _dbus_message_real_iter_zero (real_sub);
3099 if (!_dbus_message_iter_close_signature (real))
3123#ifndef DBUS_DISABLE_CHECKS
3124 _dbus_return_if_fail (_dbus_message_iter_append_check (real));
3125 _dbus_return_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER);
3126 _dbus_return_if_fail (_dbus_message_iter_append_check (real_sub));
3127 _dbus_return_if_fail (real_sub->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER);
3130 _dbus_message_iter_abandon_signature (real);
3131 _dbus_message_real_iter_zero (real_sub);
3188 if (_dbus_message_real_iter_is_zeroed (real) &&
3189 _dbus_message_real_iter_is_zeroed (real_sub))
3192#ifndef DBUS_DISABLE_CHECKS
3197 _dbus_return_if_fail (_dbus_message_iter_append_check (real));
3198 _dbus_return_if_fail (real->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER);
3208 if (_dbus_message_real_iter_is_zeroed (real_sub))
3211#ifndef DBUS_DISABLE_CHECKS
3212 _dbus_return_if_fail (_dbus_message_iter_append_check (real_sub));
3213 _dbus_return_if_fail (real_sub->
iter_type == DBUS_MESSAGE_ITER_TYPE_WRITER);
3220 _dbus_message_iter_abandon_signature (real);
3221 _dbus_message_real_iter_zero (real_sub);
3244 _dbus_return_if_fail (message !=
NULL);
3245 _dbus_return_if_fail (!message->
locked);
3262 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3286 _dbus_return_if_fail (message !=
NULL);
3287 _dbus_return_if_fail (!message->
locked);
3304 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3325 const char *object_path)
3327 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3328 _dbus_return_val_if_fail (!message->
locked,
FALSE);
3329 _dbus_return_val_if_fail (object_path ==
NULL ||
3330 _dbus_check_is_valid_path (object_path),
3333 return set_or_delete_string_field (message,
3357 _dbus_return_val_if_fail (message !=
NULL,
NULL);
3380 const char *msg_path;
3383 if (msg_path ==
NULL)
3394 if (strcmp (msg_path, path) == 0)
3426 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3427 _dbus_return_val_if_fail (path !=
NULL,
FALSE);
3458 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3459 _dbus_return_val_if_fail (!message->
locked,
FALSE);
3460 _dbus_return_val_if_fail (iface ==
NULL ||
3461 _dbus_check_is_valid_interface (iface),
3464 return set_or_delete_string_field (message,
3488 _dbus_return_val_if_fail (message !=
NULL,
NULL);
3509 const char *msg_interface;
3512 if (msg_interface ==
NULL)
3523 if (strcmp (msg_interface, iface) == 0)
3546 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3547 _dbus_return_val_if_fail (!message->
locked,
FALSE);
3548 _dbus_return_val_if_fail (member ==
NULL ||
3549 _dbus_check_is_valid_member (member),
3552 return set_or_delete_string_field (message,
3574 _dbus_return_val_if_fail (message !=
NULL,
NULL);
3595 const char *msg_member;
3598 if (msg_member ==
NULL)
3609 if (strcmp (msg_member, member) == 0)
3629 const char *error_name)
3631 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3632 _dbus_return_val_if_fail (!message->
locked,
FALSE);
3633 _dbus_return_val_if_fail (error_name ==
NULL ||
3634 _dbus_check_is_valid_error_name (error_name),
3637 return set_or_delete_string_field (message,
3658 _dbus_return_val_if_fail (message !=
NULL,
NULL);
3683 const char *destination)
3685 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3686 _dbus_return_val_if_fail (!message->
locked,
FALSE);
3687 _dbus_return_val_if_fail (destination ==
NULL ||
3688 _dbus_check_is_valid_bus_name (destination),
3691 return set_or_delete_string_field (message,
3711 _dbus_return_val_if_fail (message !=
NULL,
NULL);
3739 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3740 _dbus_return_val_if_fail (!message->
locked,
FALSE);
3741 _dbus_return_val_if_fail (sender ==
NULL ||
3742 _dbus_check_is_valid_bus_name (sender),
3745 return set_or_delete_string_field (message,
3771 _dbus_return_val_if_fail (message !=
NULL,
NULL);
3805 _dbus_return_val_if_fail (message !=
NULL,
NULL);
3807 get_const_signature (&message->
header, &type_str, &type_pos);
3809 return _dbus_string_get_const_data_len (type_str, type_pos, 0);
3813_dbus_message_has_type_interface_member (
DBusMessage *message,
3833 if (n && strcmp (n, member) == 0)
3837 if (n ==
NULL || strcmp (n, iface) == 0)
3863 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3864 _dbus_return_val_if_fail (iface !=
NULL,
FALSE);
3865 _dbus_return_val_if_fail (method !=
NULL,
FALSE);
3870 return _dbus_message_has_type_interface_member (message,
3889 const char *signal_name)
3891 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3892 _dbus_return_val_if_fail (iface !=
NULL,
FALSE);
3893 _dbus_return_val_if_fail (signal_name !=
NULL,
FALSE);
3898 return _dbus_message_has_type_interface_member (message,
3900 iface, signal_name);
3915 const char *error_name)
3919 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3920 _dbus_return_val_if_fail (error_name !=
NULL,
FALSE);
3930 if (n && strcmp (n, error_name) == 0)
3952 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3953 _dbus_return_val_if_fail (name !=
NULL,
FALSE);
3960 if (s && strcmp (s, name) == 0)
3987 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
3988 _dbus_return_val_if_fail (name !=
NULL,
FALSE);
3995 if (s && strcmp (s, name) == 0)
4012 const char *signature)
4016 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
4017 _dbus_return_val_if_fail (signature !=
NULL,
FALSE);
4024 if (s && strcmp (s, signature) == 0)
4058 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
4059 _dbus_return_val_if_error_is_set (error,
FALSE);
4070 str ?
"%s" :
NULL, str);
4084#ifdef HAVE_UNIX_FD_PASSING
4087 return message->n_unix_fds > 0;
4105 const char *object_path)
4107 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
4108 _dbus_return_val_if_fail (!message->
locked,
FALSE);
4109 _dbus_return_val_if_fail (object_path ==
NULL ||
4110 _dbus_check_is_valid_path (object_path),
4113 return set_or_delete_string_field (message,
4134 _dbus_return_val_if_fail (message !=
NULL,
NULL);
4162#define INITIAL_LOADER_DATA_LEN 32
4203#ifdef HAVE_UNIX_FD_PASSING
4204 loader->unix_fds =
NULL;
4205 loader->n_unix_fds = loader->n_unix_fds_allocated = 0;
4206 loader->unix_fds_outstanding =
FALSE;
4238#ifdef HAVE_UNIX_FD_PASSING
4239 close_unix_fds(loader->unix_fds, &loader->n_unix_fds);
4275 *buffer = &loader->
data;
4279 if (max_to_read !=
NULL)
4281#ifdef HAVE_UNIX_FD_PASSING
4285 int fields_array_len;
4291 *may_read_fds =
TRUE;
4293#ifdef HAVE_UNIX_FD_PASSING
4296 if (loader->n_unix_fds == 0)
4307 remain = _dbus_string_get_length (&loader->
data);
4321 *may_read_fds =
FALSE;
4345 needed = header_len + body_len;
4347 *max_to_read = needed - remain;
4348 *may_read_fds =
FALSE;
4354 needed = header_len + body_len;
4383#ifdef HAVE_UNIX_FD_PASSING
4397 unsigned *max_n_fds)
4417 loader->unix_fds = a;
4421 *fds = loader->unix_fds + loader->n_unix_fds;
4422 *max_n_fds = loader->n_unix_fds_allocated - loader->n_unix_fds;
4424 loader->unix_fds_outstanding =
TRUE;
4444 _dbus_assert(loader->unix_fds + loader->n_unix_fds == fds);
4445 _dbus_assert(loader->n_unix_fds + n_fds <= loader->n_unix_fds_allocated);
4447 loader->n_unix_fds += n_fds;
4448 loader->unix_fds_outstanding =
FALSE;
4450 if (n_fds && loader->unix_fds_change)
4451 loader->unix_fds_change (loader->unix_fds_change_data);
4485 int fields_array_len,
4496 mode = DBUS_VALIDATION_MODE_DATA_IS_UNTRUSTED;
4506 _dbus_assert ((header_len + body_len) <= _dbus_string_get_length (&loader->
data));
4517 _dbus_verbose (
"Failed to load header for new message code %d\n", validity);
4536 if (mode != DBUS_VALIDATION_MODE_WE_TRUST_THIS_DATA_ABSOLUTELY)
4538 get_const_signature (&message->
header, &type_str, &type_pos);
4552 _dbus_verbose (
"Failed to validate message body code %d\n", validity);
4567#ifdef HAVE_UNIX_FD_PASSING
4569 if (n_unix_fds > loader->n_unix_fds)
4571 _dbus_verbose(
"Message contains references to more unix fds than were sent %u != %u\n",
4572 n_unix_fds, loader->n_unix_fds);
4585 message->unix_fds =
_dbus_memdup(loader->unix_fds, n_unix_fds *
sizeof(message->unix_fds[0]));
4586 if (message->unix_fds ==
NULL)
4588 _dbus_verbose (
"Failed to allocate file descriptor array\n");
4593 message->n_unix_fds_allocated = message->n_unix_fds = n_unix_fds;
4594 loader->n_unix_fds -= n_unix_fds;
4595 memmove (loader->unix_fds, loader->unix_fds + n_unix_fds, loader->n_unix_fds * sizeof (loader->unix_fds[0]));
4597 if (loader->unix_fds_change)
4598 loader->unix_fds_change (loader->unix_fds_change_data);
4601 message->unix_fds =
NULL;
4607 _dbus_verbose (
"Hmm, message claims to come with file descriptors "
4608 "but that's not supported on our platform, disconnecting.\n");
4621 _dbus_verbose (
"Failed to append new message to loader queue\n");
4628 (header_len + body_len));
4632 _dbus_verbose (
"Failed to move body into new message\n");
4645 _dbus_verbose (
"Loaded message %p\n", message);
4692 int byte_order, fields_array_len, header_len, body_len;
4701 _dbus_string_get_length (&loader->
data)))
4707 message = dbus_message_new_empty_header ();
4708 if (message ==
NULL)
4711 if (!load_message (loader, message,
4712 byte_order, fields_array_len,
4713 header_len, body_len))
4727 _dbus_verbose (
"Initial peek at header says we don't have a whole message yet, or data broken with invalid code %d\n",
4842 _dbus_verbose (
"clamping requested max message size %ld to %d\n",
4873 _dbus_verbose (
"clamping requested max message unix_fds %ld to %d\n",
4900#ifdef HAVE_UNIX_FD_PASSING
4901 return loader->n_unix_fds;
4917 void (* callback) (
void *),
4920#ifdef HAVE_UNIX_FD_PASSING
4921 loader->unix_fds_change = callback;
4922 loader->unix_fds_change_data = data;
4964 _dbus_return_if_fail (*slot_p >= 0);
4992 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
4993 _dbus_return_val_if_fail (slot >= 0,
FALSE);
4997 slot, data, free_data_func,
4998 &old_free_func, &old_data);
5004 (* old_free_func) (old_data);
5024 _dbus_return_val_if_fail (message !=
NULL,
NULL);
5049 if (strcmp (type_str,
"method_call") == 0)
5051 if (strcmp (type_str,
"method_return") == 0)
5053 else if (strcmp (type_str,
"signal") == 0)
5055 else if (strcmp (type_str,
"error") == 0)
5080 return "method_call";
5082 return "method_return";
5106 char **marshalled_data_p,
5112 _dbus_return_val_if_fail (msg !=
NULL,
FALSE);
5113 _dbus_return_val_if_fail (marshalled_data_p !=
NULL,
FALSE);
5114 _dbus_return_val_if_fail (len_p !=
NULL,
FALSE);
5120 was_locked = msg->
locked;
5128 *len_p = _dbus_string_get_length (&tmp);
5133 *len_p = _dbus_string_get_length (&tmp);
5175 _dbus_return_val_if_fail (str !=
NULL,
NULL);
5210 _DBUS_SET_OOM (error);
5235 int byte_order, fields_array_len, header_len, body_len;
5249 &validity, &byte_order,
5259 _dbus_assert (have_message || (header_len + body_len) > len);
5260 (void) have_message;
5261 return header_len + body_len;
5294 _dbus_return_if_fail (message !=
NULL);
5295 _dbus_return_if_fail (!message->
locked);
5311 _dbus_return_val_if_fail (message !=
NULL,
FALSE);
5387 &variant_signature, 0, &self->data, 0);
5390 &contained_signature, 0, &variant_writer))
5406 &contained_signature, 1, &array_writer))
5410 &real_array_reader->
u.
reader))
5434 &real_inner_reader->
u.
reader))
5479#ifndef DBUS_DISABLE_ASSERT
5485#ifndef DBUS_DISABLE_ASSERT
5488 len = _dbus_string_get_byte (&self->data, 0);
5490 ret = _dbus_string_get_const_data_len (&self->data, 1, len);
5521 _dbus_assert (_dbus_message_iter_append_check (real_writer));
5526 &variant_signature, 0, &self->data, 0);
5529 if (!_dbus_message_iter_open_signature (real_writer))
5535 if (!_dbus_message_iter_close_signature (real_writer))
5545 return _dbus_string_get_length (&self->data);
void _dbus_data_slot_allocator_free(DBusDataSlotAllocator *allocator, dbus_int32_t *slot_id_p)
Deallocates an ID previously allocated with _dbus_data_slot_allocator_alloc().
void _dbus_data_slot_list_clear(DBusDataSlotList *list)
Frees all data slots contained in the list, calling application-provided free functions if they exist...
void _dbus_data_slot_list_init(DBusDataSlotList *list)
Initializes a slot list.
void _dbus_data_slot_list_free(DBusDataSlotList *list)
Frees the data slot list and all data slots contained in it, calling application-provided free functi...
void * _dbus_data_slot_list_get(DBusDataSlotAllocator *allocator, DBusDataSlotList *list, int slot)
Retrieves data previously set with _dbus_data_slot_list_set_data().
dbus_bool_t _dbus_data_slot_list_set(DBusDataSlotAllocator *allocator, DBusDataSlotList *list, int slot, void *data, DBusFreeFunction free_data_func, DBusFreeFunction *old_free_func, void **old_data)
Stores a pointer in the data slot list, along with an optional function to be used for freeing the da...
dbus_bool_t _dbus_data_slot_allocator_alloc(DBusDataSlotAllocator *allocator, dbus_int32_t *slot_id_p)
Allocates an integer ID to be used for storing data in a DBusDataSlotList.
void dbus_error_init(DBusError *error)
Initializes a DBusError structure.
void dbus_set_error(DBusError *error, const char *name, const char *format,...)
Assigns an error name and message to a DBusError.
void dbus_error_free(DBusError *error)
Frees an error that's been set (or just initialized), then reinitializes the error as in dbus_error_i...
#define _dbus_assert_not_reached(explanation)
Aborts with an error message if called.
#define _dbus_assert(condition)
Aborts with an error message if the condition is false.
#define _DBUS_UNLOCK(name)
Unlocks a global lock.
#define _DBUS_LOCK(name)
Locks a global lock, initializing it first if necessary.
void _dbus_warn_check_failed(const char *format,...)
Prints a "critical" warning to stderr when an assertion fails; differs from _dbus_warn primarily in t...
char * _dbus_strdup(const char *str)
Duplicates a string.
void _dbus_warn(const char *format,...)
Prints a warning message to stderr.
#define _DBUS_LOCK_NAME(name)
Expands to name of a global lock variable.
#define _DBUS_ZERO(object)
Sets all bits in an object to zero.
void * _dbus_memdup(const void *mem, size_t n_bytes)
Duplicates a block of memory.
DBusList * _dbus_list_pop_first_link(DBusList **list)
Removes the first link in the list and returns it.
void _dbus_list_append_link(DBusList **list, DBusList *link)
Appends a link to the list.
void _dbus_list_clear_full(DBusList **list, DBusFreeFunction function)
Free every link and every element in the list.
void _dbus_list_remove_link(DBusList **list, DBusList *link)
Removes a link from the list.
DBusList * _dbus_list_find_last(DBusList **list, void *data)
Finds a value in the list.
void * _dbus_list_pop_first(DBusList **list)
Removes the first value in the list and returns it.
void _dbus_list_foreach(DBusList **list, DBusForeachFunction function, void *data)
Calls the given function for each element in the list.
void _dbus_list_clear(DBusList **list)
Frees all links in the list and sets the list head to NULL.
void _dbus_list_prepend_link(DBusList **list, DBusList *link)
Prepends a link to the list.
DBusList * _dbus_list_alloc_link(void *data)
Allocates a linked list node.
dbus_bool_t _dbus_list_remove_last(DBusList **list, void *data)
Removes a value from the list.
dbus_bool_t _dbus_list_append(DBusList **list, void *data)
Appends a value to the list.
#define NULL
A null pointer, defined appropriately for C or C++.
#define TRUE
Expands to "1".
#define FALSE
Expands to "0".
dbus_bool_t _dbus_type_writer_write_basic(DBusTypeWriter *writer, int type, const void *value)
Writes out a basic type.
void _dbus_type_reader_recurse(DBusTypeReader *reader, DBusTypeReader *sub)
Initialize a new reader pointing to the first type and corresponding value that's a child of the curr...
DBusValidity
This is primarily used in unit testing, so we can verify that each invalid message is invalid for the...
void _dbus_header_update_lengths(DBusHeader *header, int body_len)
Fills in the correct body length.
dbus_bool_t _dbus_header_copy(const DBusHeader *header, DBusHeader *dest)
Initializes dest with a copy of the given header.
DBusValidity _dbus_validate_signature_with_reason(const DBusString *type_str, int type_pos, int len)
Verifies that the range of type_str from type_pos to type_end is a valid signature.
void _dbus_type_writer_init_values_only(DBusTypeWriter *writer, int byte_order, const DBusString *type_str, int type_pos, DBusString *value_str, int value_pos)
Like _dbus_type_writer_init(), except the type string passed in should correspond to an existing sign...
int _dbus_type_get_alignment(int typecode)
Gets the alignment requirement for the given type; will be 1, 4, or 8.
void _dbus_type_writer_remove_types(DBusTypeWriter *writer)
Removes type string from the writer.
void _dbus_type_reader_init(DBusTypeReader *reader, int byte_order, const DBusString *type_str, int type_pos, const DBusString *value_str, int value_pos)
Initializes a type reader.
DBUS_PRIVATE_EXPORT void _dbus_verbose_bytes_of_string(const DBusString *str, int start, int len)
Dump the given part of the string to verbose log.
dbus_bool_t _dbus_header_set_field_basic(DBusHeader *header, int field, int type, const void *value)
Sets the value of a field with basic type.
int _dbus_header_get_message_type(DBusHeader *header)
Gets the type of the message.
void _dbus_type_reader_get_signature(const DBusTypeReader *reader, const DBusString **str_p, int *start_p, int *len_p)
Gets the string and range of said string containing the signature of the current value.
dbus_bool_t _dbus_type_writer_write_reader(DBusTypeWriter *writer, DBusTypeReader *reader)
Iterate through all values in the given reader, writing a copy of each value to the writer.
dbus_bool_t _dbus_header_get_field_basic(DBusHeader *header, int field, int type, void *value)
Gets the value of a field with basic type.
dbus_bool_t _dbus_type_writer_recurse(DBusTypeWriter *writer, int container_type, const DBusString *contained_type, int contained_type_start, DBusTypeWriter *sub)
Opens a new container and writes out the initial information for that container.
dbus_bool_t _dbus_header_get_flag(DBusHeader *header, dbus_uint32_t flag)
Gets a message flag bit, returning TRUE if the bit is set.
void _dbus_marshal_byteswap(const DBusString *signature, int signature_start, int old_byte_order, int new_byte_order, DBusString *value_str, int value_pos)
Byteswaps the marshaled data in the given value_str.
void _dbus_type_reader_read_fixed_multi(const DBusTypeReader *reader, const void **value, int *n_elements)
Reads a block of fixed-length basic values, from the current point in an array to the end of the arra...
char _dbus_header_get_byte_order(const DBusHeader *header)
Returns the header's byte order.
dbus_bool_t _dbus_header_have_message_untrusted(int max_message_length, DBusValidity *validity, int *byte_order, int *fields_array_len, int *header_len, int *body_len, const DBusString *str, int start, int len)
Given data long enough to contain the length of the message body and the fields array,...
void _dbus_header_reinit(DBusHeader *header)
Re-initializes a header that was previously initialized and never freed.
int _dbus_type_reader_get_element_type(const DBusTypeReader *reader)
Gets the type of an element of the array the reader is currently pointing to.
dbus_bool_t _dbus_type_reader_next(DBusTypeReader *reader)
Skip to the next value on this "level".
dbus_bool_t _dbus_header_delete_field(DBusHeader *header, int field)
Deletes a field, if it exists.
int _dbus_type_reader_get_array_length(const DBusTypeReader *reader)
Returns the number of bytes in the array.
dbus_bool_t _dbus_header_remove_unknown_fields(DBusHeader *header)
Remove every header field not known to this version of dbus.
dbus_uint32_t _dbus_header_get_serial(DBusHeader *header)
See dbus_message_get_serial()
void _dbus_type_writer_add_types(DBusTypeWriter *writer, DBusString *type_str, int type_pos)
Adds type string to the writer, if it had none.
dbus_bool_t _dbus_type_reader_has_next(const DBusTypeReader *reader)
Check whether there's another value on this "level".
void _dbus_type_reader_read_basic(const DBusTypeReader *reader, void *value)
Reads a basic-typed value, as with _dbus_marshal_read_basic().
void _dbus_type_writer_init_types_delayed(DBusTypeWriter *writer, int byte_order, DBusString *value_str, int value_pos)
Initialize a write iterator, with the signature to be provided later.
const char * _dbus_type_to_string(int typecode)
Returns a string describing the given type.
DBusValidity _dbus_validate_body_with_reason(const DBusString *expected_signature, int expected_signature_start, int byte_order, int *bytes_remaining, const DBusString *value_str, int value_pos, int len)
Verifies that the range of value_str from value_pos to value_end is a legitimate value of type expect...
int _dbus_type_reader_get_current_type(const DBusTypeReader *reader)
Gets the type of the value the reader is currently pointing to; or for a types-only reader gets the t...
void _dbus_header_free(DBusHeader *header)
Frees a header.
dbus_bool_t _dbus_header_init(DBusHeader *header)
Initializes a header, but doesn't prepare it for use; to make the header valid, you have to call _dbu...
dbus_bool_t _dbus_header_create(DBusHeader *header, int byte_order, int message_type, const char *destination, const char *path, const char *interface, const char *member, const char *error_name)
Fills in the primary fields of the header, so the header is ready for use.
dbus_bool_t _dbus_type_writer_unrecurse(DBusTypeWriter *writer, DBusTypeWriter *sub)
Closes a container created by _dbus_type_writer_recurse() and writes any additional information to th...
dbus_bool_t _dbus_type_writer_write_fixed_multi(DBusTypeWriter *writer, int element_type, const void *value, int n_elements)
Writes a block of fixed-length basic values, i.e.
void _dbus_header_toggle_flag(DBusHeader *header, dbus_uint32_t flag, dbus_bool_t value)
Toggles a message flag bit, turning on the bit if value = TRUE and flipping it off if value = FALSE.
void _dbus_header_set_serial(DBusHeader *header, dbus_uint32_t serial)
Sets the serial number of a header.
dbus_bool_t _dbus_header_load(DBusHeader *header, DBusValidationMode mode, DBusValidity *validity, int byte_order, int fields_array_len, int header_len, int body_len, const DBusString *str)
Creates a message header from potentially-untrusted data.
void _dbus_header_byteswap(DBusHeader *header, int new_order)
Swaps the header into the given order if required.
dbus_bool_t _dbus_header_get_field_raw(DBusHeader *header, int field, const DBusString **str, int *pos)
Gets the raw marshaled data for a field.
DBusValidationMode
This is used rather than a bool for high visibility.
@ DBUS_VALIDITY_UNKNOWN_OOM_ERROR
can't determine validity due to OOM
@ DBUS_VALID
the data is valid
int _dbus_current_generation
_dbus_current_generation is used to track each time that dbus_shutdown() is called,...
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_register_shutdown_func(DBusShutdownFunction function, void *data)
Register a cleanup function to be called exactly once the next time dbus_shutdown() is called.
void(* DBusFreeFunction)(void *memory)
The type of a function which frees a block of memory.
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
void * dbus_realloc(void *memory, size_t bytes)
Resizes a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
#define dbus_new(type, count)
Safe macro for using dbus_malloc().
#define dbus_new0(type, count)
Safe macro for using dbus_malloc0().
void dbus_free_string_array(char **str_array)
Frees a NULL-terminated array of strings.
void _dbus_message_loader_set_max_message_size(DBusMessageLoader *loader, long size)
Sets the maximum size message we allow.
dbus_bool_t _dbus_message_remove_unknown_fields(DBusMessage *message)
Remove every header field not known to this version of dbus.
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_message_iter_get_args_valist(DBusMessageIter *iter, DBusError *error, int first_arg_type, va_list var_args)
Implementation of the varargs arg-getting functions.
DBusVariant * _dbus_variant_read(DBusMessageIter *reader)
Copy a single D-Bus message item from reader into a newly-allocated DBusVariant.
#define ensure_byte_order(message)
byte-swap the message if it doesn't match our byte order.
#define MAX_MESSAGE_SIZE_TO_CACHE
Avoid caching huge messages.
dbus_bool_t _dbus_variant_write(DBusVariant *self, DBusMessageIter *writer)
Copy the single D-Bus message item from self into writer.
void dbus_message_iter_init_closed(DBusMessageIter *iter)
Initialize iter as if with DBUS_MESSAGE_ITER_INIT_CLOSED.
dbus_bool_t _dbus_message_loader_get_is_corrupted(DBusMessageLoader *loader)
Checks whether the loader is confused due to bad data.
void dbus_message_set_serial(DBusMessage *message, dbus_uint32_t serial)
Sets the serial number of a message.
void dbus_message_lock(DBusMessage *message)
Locks a message.
int dbus_message_type_from_string(const char *type_str)
Utility function to convert a machine-readable (not translated) string into a D-Bus message type.
void _dbus_message_loader_unref(DBusMessageLoader *loader)
Decrements the reference count of the loader and finalizes the loader when the count reaches zero.
dbus_bool_t dbus_message_allocate_data_slot(dbus_int32_t *slot_p)
Allocates an integer ID to be used for storing application-specific data on any DBusMessage.
void _dbus_message_get_unix_fds(DBusMessage *message, const int **fds, unsigned *n_fds)
Gets the unix fds to be sent over the network for this message.
DBusMessage * dbus_message_demarshal(const char *str, int len, DBusError *error)
Demarshal a D-Bus message from the format described in the D-Bus specification.
DBusMessage * _dbus_message_loader_pop_message(DBusMessageLoader *loader)
Pops a loaded message (passing ownership of the message to the caller).
void _dbus_message_get_network_data(DBusMessage *message, const DBusString **header, const DBusString **body)
Gets the data to be sent over the network for this message.
void _dbus_message_loader_set_pending_fds_function(DBusMessageLoader *loader, void(*callback)(void *), void *data)
Register a function to be called whenever the number of pending file descriptors in the loader change...
#define CHANGED_STAMP_BITS
How many bits are in the changed_stamp used to validate iterators.
dbus_bool_t dbus_message_set_data(DBusMessage *message, dbus_int32_t slot, void *data, DBusFreeFunction free_data_func)
Stores a pointer on a DBusMessage, along with an optional function to be used for freeing the data wh...
void _dbus_message_loader_putback_message_link(DBusMessageLoader *loader, DBusList *link)
Returns a popped message link, used to undo a pop.
void * dbus_message_get_data(DBusMessage *message, dbus_int32_t slot)
Retrieves data previously set with dbus_message_set_data().
const char * dbus_message_type_to_string(int type)
Utility function to convert a D-Bus message type into a machine-readable string (not translated).
void dbus_message_set_allow_interactive_authorization(DBusMessage *message, dbus_bool_t allow)
Sets a flag indicating that the caller of the method is prepared to wait for interactive authorizatio...
int _dbus_message_loader_get_pending_fds_count(DBusMessageLoader *loader)
Return how many file descriptors are pending in the loader.
const char * _dbus_variant_get_signature(DBusVariant *self)
Return the signature of the item stored in self.
int dbus_message_demarshal_bytes_needed(const char *buf, int len)
Returns the number of bytes required to be in the buffer to demarshal a D-Bus message.
void _dbus_message_loader_get_buffer(DBusMessageLoader *loader, DBusString **buffer, int *max_to_read, dbus_bool_t *may_read_fds)
Gets the buffer to use for reading data from the network.
void dbus_message_free_data_slot(dbus_int32_t *slot_p)
Deallocates a global ID for message data slots.
void _dbus_message_remove_counter(DBusMessage *message, DBusCounter *counter)
Removes a counter tracking the size/unix fds of this message, and decrements the counter by the size/...
#define INITIAL_LOADER_DATA_LEN
The initial buffer size of the message loader.
dbus_bool_t _dbus_message_add_counter(DBusMessage *message, DBusCounter *counter)
Adds a counter to be incremented immediately with the size/unix fds of this message,...
DBusMessage * _dbus_message_loader_peek_message(DBusMessageLoader *loader)
Peeks at first loaded message, returns NULL if no messages have been queued.
dbus_bool_t dbus_message_marshal(DBusMessage *msg, char **marshalled_data_p, int *len_p)
Turn a DBusMessage into the marshalled form as described in the D-Bus specification.
void _dbus_message_loader_set_max_message_unix_fds(DBusMessageLoader *loader, long n)
Sets the maximum unix fds per message we allow.
long _dbus_message_loader_get_max_message_size(DBusMessageLoader *loader)
Gets the maximum allowed message size in bytes.
DBusMessageLoader * _dbus_message_loader_new(void)
Creates a new message loader.
#define MAX_MESSAGE_CACHE_SIZE
Avoid caching too many messages.
DBusList * _dbus_message_loader_pop_message_link(DBusMessageLoader *loader)
Pops a loaded message inside a list link (passing ownership of the message and link to the caller).
dbus_bool_t _dbus_message_loader_queue_messages(DBusMessageLoader *loader)
Converts buffered data into messages, if we have enough data.
void _dbus_message_loader_return_buffer(DBusMessageLoader *loader, DBusString *buffer)
Returns a buffer obtained from _dbus_message_loader_get_buffer(), indicating to the loader how many b...
DBusMessageLoader * _dbus_message_loader_ref(DBusMessageLoader *loader)
Increments the reference count of the loader.
long _dbus_message_loader_get_max_message_unix_fds(DBusMessageLoader *loader)
Gets the maximum allowed number of unix fds per message.
void _dbus_message_add_counter_link(DBusMessage *message, DBusList *link)
Adds a counter to be incremented immediately with the size/unix fds of this message,...
DBusValidity _dbus_message_loader_get_corruption_reason(DBusMessageLoader *loader)
Checks what kind of bad data confused the loader.
dbus_bool_t dbus_message_get_allow_interactive_authorization(DBusMessage *message)
Returns whether the flag controlled by dbus_message_set_allow_interactive_authorization() has been se...
dbus_bool_t dbus_message_has_destination(DBusMessage *message, const char *name)
Checks whether the message was sent to the given name.
dbus_bool_t dbus_message_set_interface(DBusMessage *message, const char *iface)
Sets the interface this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or the interface...
dbus_bool_t dbus_message_has_interface(DBusMessage *message, const char *iface)
Checks if the message has an interface.
void dbus_message_set_no_reply(DBusMessage *message, dbus_bool_t no_reply)
Sets a flag indicating that the message does not want a reply; if this flag is set,...
dbus_bool_t dbus_message_append_args_valist(DBusMessage *message, int first_arg_type, va_list var_args)
Like dbus_message_append_args() but takes a va_list for use by language bindings.
const char * dbus_message_get_sender(DBusMessage *message)
Gets the unique name of the connection which originated this message, or NULL if unknown or inapplica...
void dbus_message_set_auto_start(DBusMessage *message, dbus_bool_t auto_start)
Sets a flag indicating that an owner for the destination name will be automatically started before th...
dbus_bool_t dbus_message_iter_append_basic(DBusMessageIter *iter, int type, const void *value)
Appends a basic-typed value to the message.
const char * dbus_message_get_path(DBusMessage *message)
Gets the object path this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitt...
const char * dbus_message_get_interface(DBusMessage *message)
Gets the interface this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitted...
DBusMessage * dbus_message_new_error(DBusMessage *reply_to, const char *error_name, const char *error_message)
Creates a new message that is an error reply to another message.
dbus_bool_t dbus_message_has_sender(DBusMessage *message, const char *name)
Checks whether the message has the given unique name as its sender.
dbus_uint32_t dbus_message_get_serial(DBusMessage *message)
Returns the serial of a message or 0 if none has been specified.
dbus_bool_t dbus_message_set_member(DBusMessage *message, const char *member)
Sets the interface member being invoked (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted (DBUS_MESSAGE_TYPE...
void dbus_message_iter_get_basic(DBusMessageIter *iter, void *value)
Reads a basic-typed value from the message iterator.
int dbus_message_get_type(DBusMessage *message)
Gets the type of a message.
DBusMessage * dbus_message_copy(const DBusMessage *message)
Creates a new message that is an exact replica of the message specified, except that its refcount is ...
const char * dbus_message_get_error_name(DBusMessage *message)
Gets the error name (DBUS_MESSAGE_TYPE_ERROR only) or NULL if none.
dbus_bool_t dbus_message_iter_next(DBusMessageIter *iter)
Moves the iterator to the next field, if any.
dbus_bool_t dbus_message_append_args(DBusMessage *message, int first_arg_type,...)
Appends fields to a message given a variable argument list.
int dbus_message_iter_get_arg_type(DBusMessageIter *iter)
Returns the argument type of the argument that the message iterator points to.
dbus_bool_t dbus_message_get_no_reply(DBusMessage *message)
Returns TRUE if the message does not expect a reply.
DBusMessage * dbus_message_new_signal(const char *path, const char *iface, const char *name)
Constructs a new message representing a signal emission.
dbus_bool_t dbus_message_iter_append_fixed_array(DBusMessageIter *iter, int element_type, const void *value, int n_elements)
Appends a block of fixed-length values to an array.
void dbus_message_iter_abandon_container(DBusMessageIter *iter, DBusMessageIter *sub)
Abandons creation of a contained-typed value and frees resources created by dbus_message_iter_open_co...
DBusMessage * dbus_message_new_error_printf(DBusMessage *reply_to, const char *error_name, const char *error_format,...)
Creates a new message that is an error reply to another message, allowing you to use printf formattin...
dbus_bool_t dbus_message_is_error(DBusMessage *message, const char *error_name)
Checks whether the message is an error reply with the given error name.
dbus_bool_t dbus_message_contains_unix_fds(DBusMessage *message)
Checks whether a message contains unix fds.
void dbus_message_iter_recurse(DBusMessageIter *iter, DBusMessageIter *sub)
Recurses into a container value when reading values from a message, initializing a sub-iterator to us...
DBusMessage * dbus_message_ref(DBusMessage *message)
Increments the reference count of a DBusMessage.
dbus_bool_t dbus_message_get_auto_start(DBusMessage *message)
Returns TRUE if the message will cause an owner for destination name to be auto-started.
int dbus_message_iter_get_element_type(DBusMessageIter *iter)
Returns the element type of the array that the message iterator points to.
dbus_bool_t dbus_message_set_error_name(DBusMessage *message, const char *error_name)
Sets the name of the error (DBUS_MESSAGE_TYPE_ERROR).
dbus_bool_t dbus_message_has_signature(DBusMessage *message, const char *signature)
Checks whether the message has the given signature; see dbus_message_get_signature() for more details...
dbus_bool_t dbus_message_iter_open_container(DBusMessageIter *iter, int type, const char *contained_signature, DBusMessageIter *sub)
Appends a container-typed value to the message.
dbus_uint32_t dbus_message_get_reply_serial(DBusMessage *message)
Returns the serial that the message is a reply to or 0 if none.
DBusMessage * dbus_message_new_method_return(DBusMessage *method_call)
Constructs a message that is a reply to a method call.
DBusMessage * dbus_message_new_method_call(const char *destination, const char *path, const char *iface, const char *method)
Constructs a new message to invoke a method on a remote object.
dbus_bool_t dbus_message_iter_init(DBusMessage *message, DBusMessageIter *iter)
Initializes a DBusMessageIter for reading the arguments of the message passed in.
dbus_bool_t dbus_message_set_sender(DBusMessage *message, const char *sender)
Sets the message sender.
void dbus_message_iter_abandon_container_if_open(DBusMessageIter *iter, DBusMessageIter *sub)
Abandons creation of a contained-typed value and frees resources created by dbus_message_iter_open_co...
const char * dbus_message_get_destination(DBusMessage *message)
Gets the destination of a message or NULL if there is none set.
dbus_bool_t dbus_message_set_path(DBusMessage *message, const char *object_path)
Sets the object path this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or the one a s...
dbus_bool_t dbus_message_iter_has_next(DBusMessageIter *iter)
Checks if an iterator has any more fields.
dbus_bool_t dbus_message_get_args_valist(DBusMessage *message, DBusError *error, int first_arg_type, va_list var_args)
Like dbus_message_get_args but takes a va_list for use by language bindings.
char * dbus_message_iter_get_signature(DBusMessageIter *iter)
Returns the current signature of a message iterator.
void dbus_message_unref(DBusMessage *message)
Decrements the reference count of a DBusMessage, freeing the message if the count reaches 0.
int dbus_message_iter_get_array_len(DBusMessageIter *iter)
Returns the number of bytes in the array as marshaled in the wire protocol.
DBusMessage * dbus_message_new(int message_type)
Constructs a new message of the given message type.
dbus_bool_t dbus_set_error_from_message(DBusError *error, DBusMessage *message)
Sets a DBusError based on the contents of the given message.
int dbus_message_iter_get_element_count(DBusMessageIter *iter)
Returns the number of elements in the array-typed value pointed to by the iterator.
dbus_bool_t dbus_message_set_destination(DBusMessage *message, const char *destination)
Sets the message's destination.
dbus_bool_t dbus_message_has_path(DBusMessage *message, const char *path)
Checks if the message has a particular object path.
dbus_bool_t dbus_message_has_member(DBusMessage *message, const char *member)
Checks if the message has an interface member.
dbus_bool_t dbus_message_get_args(DBusMessage *message, DBusError *error, int first_arg_type,...)
Gets arguments from a message given a variable argument list.
dbus_bool_t dbus_message_is_method_call(DBusMessage *message, const char *iface, const char *method)
Checks whether the message is a method call with the given interface and member fields.
void dbus_message_iter_get_fixed_array(DBusMessageIter *iter, void *value, int *n_elements)
Reads a block of fixed-length values from the message iterator.
dbus_bool_t dbus_message_set_reply_serial(DBusMessage *message, dbus_uint32_t reply_serial)
Sets the reply serial of a message (the serial of the message this is a reply to).
dbus_bool_t dbus_message_is_signal(DBusMessage *message, const char *iface, const char *signal_name)
Checks whether the message is a signal with the given interface and member fields.
const char * dbus_message_get_signature(DBusMessage *message)
Gets the type signature of the message, i.e.
dbus_bool_t dbus_message_set_container_instance(DBusMessage *message, const char *object_path)
Sets the container instance this message was sent from.
dbus_bool_t dbus_message_iter_close_container(DBusMessageIter *iter, DBusMessageIter *sub)
Closes a container-typed value appended to the message; may write out more information to the message...
dbus_bool_t dbus_message_get_path_decomposed(DBusMessage *message, char ***path)
Gets the object path this message is being sent to (for DBUS_MESSAGE_TYPE_METHOD_CALL) or being emitt...
const char * dbus_message_get_member(DBusMessage *message)
Gets the interface member being invoked (DBUS_MESSAGE_TYPE_METHOD_CALL) or emitted (DBUS_MESSAGE_TYPE...
void dbus_message_iter_init_append(DBusMessage *message, DBusMessageIter *iter)
Initializes a DBusMessageIter for appending arguments to the end of a message.
const char * dbus_message_get_container_instance(DBusMessage *message)
Gets the container instance this message was sent from, or NULL if none.
dbus_bool_t _dbus_decompose_path(const char *data, int len, char ***path, int *path_len)
Decompose an object path.
#define DBUS_HEADER_FIELD_UNIX_FDS
Header field code for the number of unix file descriptors associated with this message.
#define DBUS_MESSAGE_TYPE_METHOD_CALL
Message type of a method call message, see dbus_message_get_type()
#define DBUS_HEADER_FIELD_PATH
Header field code for the path - the path is the object emitting a signal or the object receiving a m...
#define DBUS_HEADER_FLAG_NO_REPLY_EXPECTED
If set, this flag means that the sender of a message does not care about getting a reply,...
#define DBUS_HEADER_FIELD_REPLY_SERIAL
Header field code for a reply serial, used to match a DBUS_MESSAGE_TYPE_METHOD_RETURN message with th...
#define DBUS_HEADER_FIELD_CONTAINER_INSTANCE
Header field code for the container instance that sent this message.
#define DBUS_TYPE_SIGNATURE
Type code marking a D-Bus type signature.
#define DBUS_MAXIMUM_MESSAGE_UNIX_FDS
The maximum total number of unix fds in a message.
#define DBUS_MAXIMUM_MESSAGE_LENGTH
The maximum total message size including header and body; similar rationale to max array size.
#define DBUS_HEADER_FIELD_INTERFACE
Header field code for the interface containing a member (method or signal).
#define DBUS_ERROR_INCONSISTENT_MESSAGE
The message meta data does not match the payload.
#define DBUS_HEADER_FIELD_MEMBER
Header field code for a member (method or signal).
#define DBUS_MESSAGE_TYPE_ERROR
Message type of an error reply message, see dbus_message_get_type()
#define DBUS_TYPE_OBJECT_PATH
Type code marking a D-Bus object path.
#define DBUS_ERROR_NOT_SUPPORTED
Requested operation isn't supported (like ENOSYS on UNIX).
#define DBUS_HEADER_FIELD_SENDER
Header field code for the sender of a message; usually initialized by the message bus.
#define DBUS_HEADER_FIELD_SIGNATURE
Header field code for the type signature of a message.
#define DBUS_MESSAGE_TYPE_METHOD_RETURN
Message type of a method return message, see dbus_message_get_type()
#define DBUS_TYPE_VARIANT
Type code marking a D-Bus variant type.
#define DBUS_MAXIMUM_ARRAY_LENGTH
Max length of a marshaled array in bytes (64M, 2^26) We use signed int for lengths so must be INT_MAX...
#define DBUS_TYPE_UNIX_FD
Type code marking a unix file descriptor.
#define DBUS_TYPE_BOOLEAN
Type code marking a boolean.
#define DBUS_MESSAGE_TYPE_SIGNAL
Message type of a signal message, see dbus_message_get_type()
#define DBUS_TYPE_STRING
Type code marking a UTF-8 encoded, nul-terminated Unicode string.
#define DBUS_HEADER_FLAG_NO_AUTO_START
If set, this flag means that even if the message bus knows how to start an owner for the destination ...
#define DBUS_TYPE_ARRAY
Type code marking a D-Bus array type.
#define DBUS_HEADER_FLAG_ALLOW_INTERACTIVE_AUTHORIZATION
If set on a method call, this flag means that the caller is prepared to wait for interactive authoriz...
#define DBUS_TYPE_INVALID
Type code that is never equal to a legitimate type code.
#define DBUS_HEADER_FIELD_ERROR_NAME
Header field code for an error name (found in DBUS_MESSAGE_TYPE_ERROR messages).
#define DBUS_TYPE_VARIANT_AS_STRING
DBUS_TYPE_VARIANT as a string literal instead of a int literal
#define DBUS_MESSAGE_TYPE_INVALID
This value is never a valid message type, see dbus_message_get_type()
#define DBUS_ERROR_INVALID_ARGS
Invalid arguments passed to a method call.
#define DBUS_TYPE_DICT_ENTRY
Type code used to represent a dict entry; however, this type code does not appear in type signatures,...
#define DBUS_DICT_ENTRY_BEGIN_CHAR
Code marking the start of a dict entry type in a type signature.
#define DBUS_HEADER_FIELD_DESTINATION
Header field code for the destination bus name of a message.
#define DBUS_TYPE_STRUCT
STRUCT and DICT_ENTRY are sort of special since their codes can't appear in a type string,...
#define DBUS_TYPE_UINT32
Type code marking a 32-bit unsigned integer.
#define DBUS_MINIMUM_HEADER_SIZE
The smallest header size that can occur.
void _dbus_counter_unref(DBusCounter *counter)
Decrements refcount of the counter and possibly finalizes the counter.
void _dbus_counter_adjust_unix_fd(DBusCounter *counter, long delta)
Adjusts the value of the unix fd counter by the given delta which may be positive or negative.
void _dbus_counter_notify(DBusCounter *counter)
Calls the notify function from _dbus_counter_set_notify(), if that function has been specified and th...
DBusCounter * _dbus_counter_ref(DBusCounter *counter)
Increments refcount of the counter.
void _dbus_counter_adjust_size(DBusCounter *counter, long delta)
Adjusts the value of the size counter by the given delta which may be positive or negative.
dbus_bool_t dbus_type_is_basic(int typecode)
A "basic type" is a somewhat arbitrary concept, but the intent is to include those types that are ful...
dbus_bool_t dbus_type_is_fixed(int typecode)
Tells you whether values of this type can change length if you set them to some other value.
dbus_bool_t dbus_type_is_container(int typecode)
A "container type" can contain basic types, or nested container types.
dbus_bool_t _dbus_string_set_length(DBusString *str, int length)
Sets the length of a string.
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
void _dbus_string_init_const(DBusString *str, const char *value)
Initializes a constant string.
dbus_bool_t _dbus_string_copy(const DBusString *source, int start, DBusString *dest, int insert_at)
Like _dbus_string_move(), but does not delete the section of the source string that's copied to the d...
dbus_bool_t _dbus_string_steal_data(DBusString *str, char **data_return)
Like _dbus_string_get_data(), but removes the gotten data from the original string.
dbus_bool_t _dbus_string_init_preallocated(DBusString *str, int allocate_size)
Initializes a string that can be up to the given allocation size before it has to realloc.
void _dbus_string_init_const_len(DBusString *str, const char *value, int len)
Initializes a constant string with a length.
dbus_bool_t _dbus_string_append_len(DBusString *str, const char *buffer, int len)
Appends block of bytes with the given length to a DBusString.
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...
void _dbus_string_delete(DBusString *str, int start, int len)
Deletes a segment of a DBusString with length len starting at start.
dbus_bool_t _dbus_string_append_printf_valist(DBusString *str, const char *format, va_list args)
Appends a printf-style formatted string to the DBusString.
dbus_bool_t _dbus_string_compact(DBusString *str, int max_waste)
Compacts the string to avoid wasted memory.
dbus_bool_t _dbus_string_copy_len(const DBusString *source, int start, int len, DBusString *dest, int insert_at)
Like _dbus_string_copy(), but can copy a segment from the middle of the source string.
dbus_bool_t _dbus_close(int fd, DBusError *error)
Closes a file descriptor.
int _dbus_dup(int fd, DBusError *error)
Duplicates a file descriptor.
dbus_int32_t _dbus_atomic_dec(DBusAtomic *atomic)
Atomically decrement an integer.
const char * _dbus_getenv(const char *varname)
Wrapper for getenv().
dbus_int32_t _dbus_atomic_get(DBusAtomic *atomic)
Atomically get the value of an integer.
dbus_int32_t _dbus_atomic_inc(DBusAtomic *atomic)
Atomically increments an integer.
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
int dbus_int32_t
A 32-bit signed integer on all platforms.
unsigned int dbus_uint32_t
A 32-bit unsigned integer on all platforms.
Internals of DBusCounter.
An allocator that tracks a set of slot IDs.
Object representing an exception.
const char * message
public error message field
void * data
Data stored at this element.
Layout of a DBusMessageIter on the stack in dbus 1.10.0.
DBusMessageIter struct; contains no public fields.
Implementation details of DBusMessageLoader.
long max_message_size
Maximum size of a message.
long max_message_unix_fds
Maximum unix fds in a message.
DBusString data
Buffered data.
DBusList * messages
Complete messages.
unsigned int corrupted
We got broken data, and are no longer working.
unsigned int buffer_outstanding
Someone is using the buffer to read.
DBusValidity corruption_reason
why we were corrupted
int refcount
Reference count.
Internals of DBusMessageIter.
union DBusMessageRealIter::@6 u
the type writer or reader that does all the work
DBusMessage * message
Message used.
dbus_uint32_t iter_type
whether this is a reader or writer iter
dbus_uint32_t sig_refcount
depth of open_signature()
DBusTypeWriter writer
writer
dbus_uint32_t changed_stamp
stamp to detect invalid iters
DBusTypeReader reader
reader
Internals of DBusMessage.
DBusHeader header
Header network data and associated cache.
DBusString body
Body network data.
DBusDataSlotList slot_list
Data stored by allocated integer ID.
DBusAtomic refcount
Reference count.
dbus_uint32_t changed_stamp
Incremented when iterators are invalidated.
int generation
_dbus_current_generation when message was created
long size_counter_delta
Size we incremented the size counters by.
DBusList * counters
0-N DBusCounter used to track message size/unix fds.
unsigned int in_cache
Has been "freed" since it's in the cache (this is a debug feature)
unsigned int locked
Message being sent, no modifications allowed.
The type reader is an iterator for reading values from a block of values.
dbus_uint32_t byte_order
byte order of the block
The type writer is an iterator for writing to a block of values.
dbus_uint32_t byte_order
byte order to write values with
DBusString * type_str
where to write typecodes (or read type expectations)
dbus_uint32_t container_type
what are we inside? (e.g.
An opaque data structure containing the serialized form of any single D-Bus message item,...
A simple value union that lets you access bytes as if they were various types; useful when dealing wi...
dbus_uint32_t u32
as int32