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-rw-r--r--ChangeLog35
-rw-r--r--bus/Makefile.am2
-rw-r--r--bus/bus.c65
-rw-r--r--bus/bus.h71
-rw-r--r--bus/config-parser.c102
-rw-r--r--bus/connection.c123
-rw-r--r--bus/connection.h13
-rw-r--r--bus/dbus-daemon-1.1.in49
-rw-r--r--bus/dispatch.c312
-rw-r--r--bus/dispatch.h3
-rw-r--r--bus/driver.c164
-rw-r--r--bus/policy.c39
-rw-r--r--bus/policy.h3
-rw-r--r--bus/session.conf.in5
-rw-r--r--bus/signals.c774
-rw-r--r--bus/signals.h83
-rw-r--r--bus/system.conf.in4
-rw-r--r--bus/test-main.c6
-rw-r--r--bus/test.h1
-rw-r--r--dbus/dbus-errors.h13
-rw-r--r--dbus/dbus-mainloop.c2
-rw-r--r--dbus/dbus-protocol.h1
-rw-r--r--dbus/dbus-transport.c2
-rw-r--r--doc/TODO9
-rw-r--r--glib/dbus-gproxy.c2
-rw-r--r--test/data/valid-config-files/many-rules.conf16
-rw-r--r--test/data/valid-config-files/system.d/test.conf2
-rw-r--r--tools/dbus-send.c2
28 files changed, 1697 insertions, 206 deletions
diff --git a/ChangeLog b/ChangeLog
index 64d29e8d..68dfde4d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,38 @@
+2003-09-21 Havoc Pennington <hp@pobox.com>
+
+ Get matching rules mostly working in the bus; only actually
+ parsing the rule text remains. However, the client side of
+ "signal connections" hasn't been started, this patch is only the
+ bus side.
+
+ * dbus/dispatch.c: fix for the matching rules changes
+
+ * bus/driver.c (bus_driver_handle_remove_match)
+ (bus_driver_handle_add_match): send an ack reply from these
+ method calls
+
+ * glib/dbus-gproxy.c (dbus_gproxy_begin_call): fix order of
+ arguments, reported by Seth Nickell
+
+ * bus/config-parser.c (append_rule_from_element): support
+ eavesdrop=true|false attribute on policies so match rules
+ can be prevented from snooping on the system bus.
+
+ * bus/dbus-daemon-1.1.in: consistently use terminology "sender"
+ and "destination" in attribute names; fix some docs bugs;
+ add eavesdrop=true|false attribute
+
+ * bus/driver.c (bus_driver_handle_add_match)
+ (bus_driver_handle_remove_match): handle AddMatch, RemoveMatch
+ messages
+
+ * dbus/dbus-protocol.h (DBUS_SERVICE_ORG_FREEDESKTOP_BROADCAST): get
+ rid of broadcast service concept, signals are just always broadcast
+
+ * bus/signals.c, bus/dispatch.c, bus/connection.c, bus/bus.c:
+ mostly implement matching rules stuff (currently only exposed as signal
+ connections)
+
2003-09-21 Mark McLoughlin <mark@skynet.ie>
* doc/dbus-specification.sgml: Change the header field name
diff --git a/bus/Makefile.am b/bus/Makefile.am
index 27735077..bc728801 100644
--- a/bus/Makefile.am
+++ b/bus/Makefile.am
@@ -44,6 +44,8 @@ BUS_SOURCES= \
policy.h \
services.c \
services.h \
+ signals.c \
+ signals.h \
test.c \
test.h \
utils.c \
diff --git a/bus/bus.c b/bus/bus.c
index 1b461fe3..4087334e 100644
--- a/bus/bus.c
+++ b/bus/bus.c
@@ -28,6 +28,7 @@
#include "utils.h"
#include "policy.h"
#include "config-parser.h"
+#include "signals.h"
#include <dbus/dbus-list.h>
#include <dbus/dbus-hash.h>
#include <dbus/dbus-internals.h>
@@ -44,6 +45,7 @@ struct BusContext
BusActivation *activation;
BusRegistry *registry;
BusPolicy *policy;
+ BusMatchmaker *matchmaker;
DBusUserDatabase *user_database;
BusLimits limits;
};
@@ -505,6 +507,13 @@ bus_context_new (const DBusString *config_file,
goto failed;
}
+ context->matchmaker = bus_matchmaker_new ();
+ if (context->matchmaker == NULL)
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
context->policy = bus_config_parser_steal_policy (parser);
_dbus_assert (context->policy != NULL);
@@ -715,6 +724,12 @@ bus_context_unref (BusContext *context)
_dbus_loop_unref (context->loop);
context->loop = NULL;
}
+
+ if (context->matchmaker)
+ {
+ bus_matchmaker_unref (context->matchmaker);
+ context->matchmaker = NULL;
+ }
dbus_free (context->type);
dbus_free (context->address);
@@ -771,6 +786,12 @@ bus_context_get_activation (BusContext *context)
return context->activation;
}
+BusMatchmaker*
+bus_context_get_matchmaker (BusContext *context)
+{
+ return context->matchmaker;
+}
+
DBusLoop*
bus_context_get_loop (BusContext *context)
{
@@ -845,18 +866,33 @@ bus_context_get_max_services_per_connection (BusContext *context)
return context->limits.max_services_per_connection;
}
+int
+bus_context_get_max_match_rules_per_connection (BusContext *context)
+{
+ return context->limits.max_match_rules_per_connection;
+}
+
dbus_bool_t
bus_context_check_security_policy (BusContext *context,
DBusConnection *sender,
- DBusConnection *recipient,
+ DBusConnection *addressed_recipient,
+ DBusConnection *proposed_recipient,
DBusMessage *message,
DBusError *error)
{
BusClientPolicy *sender_policy;
BusClientPolicy *recipient_policy;
- /* NULL sender/receiver means the bus driver */
+ /* NULL sender, proposed_recipient means the bus driver. NULL
+ * addressed_recipient means the message didn't specify an explicit
+ * target. If proposed_recipient is NULL, then addressed_recipient
+ * is also NULL but is implicitly the bus driver.
+ */
+ _dbus_assert (proposed_recipient == NULL ||
+ (dbus_message_get_destination (message) == NULL ||
+ addressed_recipient != NULL));
+
if (sender != NULL)
{
if (bus_connection_is_active (sender))
@@ -869,7 +905,7 @@ bus_context_check_security_policy (BusContext *context,
/* Policy for inactive connections is that they can only send
* the hello message to the bus driver
*/
- if (recipient == NULL &&
+ if (proposed_recipient == NULL &&
dbus_message_is_method_call (message,
DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS,
"Hello"))
@@ -897,15 +933,15 @@ bus_context_check_security_policy (BusContext *context,
_dbus_assert ((sender != NULL && sender_policy != NULL) ||
(sender == NULL && sender_policy == NULL));
- if (recipient != NULL)
+ if (proposed_recipient != NULL)
{
/* only the bus driver can send to an inactive recipient (as it
* owns no services, so other apps can't address it). Inactive
* recipients can receive any message.
*/
- if (bus_connection_is_active (recipient))
+ if (bus_connection_is_active (proposed_recipient))
{
- recipient_policy = bus_connection_get_policy (recipient);
+ recipient_policy = bus_connection_get_policy (proposed_recipient);
_dbus_assert (recipient_policy != NULL);
}
else if (sender == NULL)
@@ -922,13 +958,13 @@ bus_context_check_security_policy (BusContext *context,
else
recipient_policy = NULL;
- _dbus_assert ((recipient != NULL && recipient_policy != NULL) ||
- (recipient != NULL && sender == NULL && recipient_policy == NULL) ||
- (recipient == NULL && recipient_policy == NULL));
+ _dbus_assert ((proposed_recipient != NULL && recipient_policy != NULL) ||
+ (proposed_recipient != NULL && sender == NULL && recipient_policy == NULL) ||
+ (proposed_recipient == NULL && recipient_policy == NULL));
if (sender_policy &&
!bus_client_policy_check_can_send (sender_policy,
- context->registry, recipient,
+ context->registry, proposed_recipient,
message))
{
const char *dest = dbus_message_get_destination (message);
@@ -951,6 +987,7 @@ bus_context_check_security_policy (BusContext *context,
if (recipient_policy &&
!bus_client_policy_check_can_receive (recipient_policy,
context->registry, sender,
+ addressed_recipient, proposed_recipient,
message))
{
const char *dest = dbus_message_get_destination (message);
@@ -971,14 +1008,16 @@ bus_context_check_security_policy (BusContext *context,
}
/* See if limits on size have been exceeded */
- if (recipient &&
- dbus_connection_get_outgoing_size (recipient) >
+ if (proposed_recipient &&
+ dbus_connection_get_outgoing_size (proposed_recipient) >
context->limits.max_outgoing_bytes)
{
const char *dest = dbus_message_get_destination (message);
dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
"The destination service \"%s\" has a full message queue",
- dest ? dest : DBUS_SERVICE_ORG_FREEDESKTOP_DBUS);
+ dest ? dest : (proposed_recipient ?
+ bus_connection_get_name (proposed_recipient) :
+ DBUS_SERVICE_ORG_FREEDESKTOP_DBUS));
_dbus_verbose ("security policy disallowing message due to full message queue\n");
return FALSE;
}
diff --git a/bus/bus.h b/bus/bus.h
index 8f32d7a9..5809321a 100644
--- a/bus/bus.h
+++ b/bus/bus.h
@@ -40,7 +40,8 @@ typedef struct BusPolicyRule BusPolicyRule;
typedef struct BusRegistry BusRegistry;
typedef struct BusService BusService;
typedef struct BusTransaction BusTransaction;
-
+typedef struct BusMatchmaker BusMatchmaker;
+typedef struct BusMatchRule BusMatchRule;
typedef struct
{
@@ -54,40 +55,44 @@ typedef struct
int max_connections_per_user; /**< Max number of connections auth'd as same user */
int max_pending_activations; /**< Max number of pending activations for the entire bus */
int max_services_per_connection; /**< Max number of owned services for a single connection */
+ int max_match_rules_per_connection; /**< Max number of match rules for a single connection */
} BusLimits;
-BusContext* bus_context_new (const DBusString *config_file,
- dbus_bool_t force_fork,
- int print_addr_fd,
- int print_pid_fd,
- DBusError *error);
-void bus_context_shutdown (BusContext *context);
-void bus_context_ref (BusContext *context);
-void bus_context_unref (BusContext *context);
-const char* bus_context_get_type (BusContext *context);
-const char* bus_context_get_address (BusContext *context);
-BusRegistry* bus_context_get_registry (BusContext *context);
-BusConnections* bus_context_get_connections (BusContext *context);
-BusActivation* bus_context_get_activation (BusContext *context);
-DBusLoop* bus_context_get_loop (BusContext *context);
-DBusUserDatabase* bus_context_get_user_database (BusContext *context);
-dbus_bool_t bus_context_allow_user (BusContext *context,
- unsigned long uid);
-BusClientPolicy* bus_context_create_client_policy (BusContext *context,
- DBusConnection *connection,
- DBusError *error);
+BusContext* bus_context_new (const DBusString *config_file,
+ dbus_bool_t force_fork,
+ int print_addr_fd,
+ int print_pid_fd,
+ DBusError *error);
+void bus_context_shutdown (BusContext *context);
+void bus_context_ref (BusContext *context);
+void bus_context_unref (BusContext *context);
+const char* bus_context_get_type (BusContext *context);
+const char* bus_context_get_address (BusContext *context);
+BusRegistry* bus_context_get_registry (BusContext *context);
+BusConnections* bus_context_get_connections (BusContext *context);
+BusActivation* bus_context_get_activation (BusContext *context);
+BusMatchmaker* bus_context_get_matchmaker (BusContext *context);
+DBusLoop* bus_context_get_loop (BusContext *context);
+DBusUserDatabase* bus_context_get_user_database (BusContext *context);
+dbus_bool_t bus_context_allow_user (BusContext *context,
+ unsigned long uid);
+BusClientPolicy* bus_context_create_client_policy (BusContext *context,
+ DBusConnection *connection,
+ DBusError *error);
+int bus_context_get_activation_timeout (BusContext *context);
+int bus_context_get_auth_timeout (BusContext *context);
+int bus_context_get_max_completed_connections (BusContext *context);
+int bus_context_get_max_incomplete_connections (BusContext *context);
+int bus_context_get_max_connections_per_user (BusContext *context);
+int bus_context_get_max_pending_activations (BusContext *context);
+int bus_context_get_max_services_per_connection (BusContext *context);
+int bus_context_get_max_match_rules_per_connection (BusContext *context);
+dbus_bool_t bus_context_check_security_policy (BusContext *context,
+ DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusConnection *proposed_recipient,
+ DBusMessage *message,
+ DBusError *error);
-int bus_context_get_activation_timeout (BusContext *context);
-int bus_context_get_auth_timeout (BusContext *context);
-int bus_context_get_max_completed_connections (BusContext *context);
-int bus_context_get_max_incomplete_connections (BusContext *context);
-int bus_context_get_max_connections_per_user (BusContext *context);
-int bus_context_get_max_pending_activations (BusContext *context);
-int bus_context_get_max_services_per_connection (BusContext *context);
-dbus_bool_t bus_context_check_security_policy (BusContext *context,
- DBusConnection *sender,
- DBusConnection *recipient,
- DBusMessage *message,
- DBusError *error);
#endif /* BUS_BUS_H */
diff --git a/bus/config-parser.c b/bus/config-parser.c
index cbc239f9..7b9b962d 100644
--- a/bus/config-parser.c
+++ b/bus/config-parser.c
@@ -334,6 +334,8 @@ bus_config_parser_new (const DBusString *basedir,
parser->limits.max_pending_activations = 256;
parser->limits.max_services_per_connection = 256;
+
+ parser->limits.max_match_rules_per_connection = 128;
parser->refcount = 1;
@@ -837,15 +839,16 @@ append_rule_from_element (BusConfigParser *parser,
const char *send_interface;
const char *send_member;
const char *send_error;
- const char *send_service;
+ const char *send_destination;
const char *send_path;
const char *send_type;
const char *receive_interface;
const char *receive_member;
const char *receive_error;
- const char *receive_service;
+ const char *receive_sender;
const char *receive_path;
const char *receive_type;
+ const char *eavesdrop;
const char *own;
const char *user;
const char *group;
@@ -858,25 +861,26 @@ append_rule_from_element (BusConfigParser *parser,
"send_interface", &send_interface,
"send_member", &send_member,
"send_error", &send_error,
- "send_service", &send_service,
+ "send_destination", &send_destination,
"send_path", &send_path,
"send_type", &send_type,
"receive_interface", &receive_interface,
"receive_member", &receive_member,
"receive_error", &receive_error,
- "receive_service", &receive_service,
+ "receive_sender", &receive_sender,
"receive_path", &receive_path,
"receive_type", &receive_type,
+ "eavesdrop", &eavesdrop,
"own", &own,
"user", &user,
"group", &group,
NULL))
return FALSE;
- if (!(send_interface || send_member || send_error || send_service ||
+ if (!(send_interface || send_member || send_error || send_destination ||
send_type || send_path ||
- receive_interface || receive_member || receive_error || receive_service ||
- receive_type || receive_path ||
+ receive_interface || receive_member || receive_error || receive_sender ||
+ receive_type || receive_path || eavesdrop ||
own || user || group))
{
dbus_set_error (error, DBUS_ERROR_FAILED,
@@ -902,17 +906,20 @@ append_rule_from_element (BusConfigParser *parser,
* interface + member
* error
*
- * base send_ can combine with send_service, send_path, send_type
- * base receive_ with receive_service, receive_path, receive_type
+ * base send_ can combine with send_destination, send_path, send_type
+ * base receive_ with receive_sender, receive_path, receive_type, eavesdrop
*
* user, group, own must occur alone
+ *
+ * Pretty sure the below stuff is broken, FIXME think about it more.
*/
if (((send_interface && send_error) ||
(send_interface && receive_interface) ||
(send_interface && receive_member) ||
(send_interface && receive_error) ||
- (send_interface && receive_service) ||
+ (send_interface && receive_sender) ||
+ (send_interface && eavesdrop) ||
(send_interface && own) ||
(send_interface && user) ||
(send_interface && group)) ||
@@ -921,7 +928,8 @@ append_rule_from_element (BusConfigParser *parser,
(send_member && receive_interface) ||
(send_member && receive_member) ||
(send_member && receive_error) ||
- (send_member && receive_service) ||
+ (send_member && receive_sender) ||
+ (send_member && eavesdrop) ||
(send_member && own) ||
(send_member && user) ||
(send_member && group)) ||
@@ -929,23 +937,26 @@ append_rule_from_element (BusConfigParser *parser,
((send_error && receive_interface) ||
(send_error && receive_member) ||
(send_error && receive_error) ||
- (send_error && receive_service) ||
+ (send_error && receive_sender) ||
+ (send_error && eavesdrop) ||
(send_error && own) ||
(send_error && user) ||
(send_error && group)) ||
- ((send_service && receive_interface) ||
- (send_service && receive_member) ||
- (send_service && receive_error) ||
- (send_service && receive_service) ||
- (send_service && own) ||
- (send_service && user) ||
- (send_service && group)) ||
+ ((send_destination && receive_interface) ||
+ (send_destination && receive_member) ||
+ (send_destination && receive_error) ||
+ (send_destination && receive_sender) ||
+ (send_destination && eavesdrop) ||
+ (send_destination && own) ||
+ (send_destination && user) ||
+ (send_destination && group)) ||
((send_type && receive_interface) ||
(send_type && receive_member) ||
(send_type && receive_error) ||
- (send_type && receive_service) ||
+ (send_type && receive_sender) ||
+ (send_type && eavesdrop) ||
(send_type && own) ||
(send_type && user) ||
(send_type && group)) ||
@@ -953,7 +964,8 @@ append_rule_from_element (BusConfigParser *parser,
((send_path && receive_interface) ||
(send_path && receive_member) ||
(send_path && receive_error) ||
- (send_path && receive_service) ||
+ (send_path && receive_sender) ||
+ (send_path && eavesdrop) ||
(send_path && own) ||
(send_path && user) ||
(send_path && group)) ||
@@ -967,19 +979,22 @@ append_rule_from_element (BusConfigParser *parser,
(receive_member && own) ||
(receive_member && user) ||
(receive_member && group)) ||
-
+
((receive_error && own) ||
(receive_error && user) ||
(receive_error && group)) ||
+ ((eavesdrop && own) ||
+ (eavesdrop && user) ||
+ (eavesdrop && group)) ||
+
((own && user) ||
(own && group)) ||
((user && group)))
{
dbus_set_error (error, DBUS_ERROR_FAILED,
- "Invalid combination of attributes on element <%s>, "
- "only send_foo/send_service or receive_foo/receive_service may be paired",
+ "Invalid combination of attributes on element <%s>",
element_name);
return FALSE;
}
@@ -991,7 +1006,7 @@ append_rule_from_element (BusConfigParser *parser,
*/
#define IS_WILDCARD(str) ((str) && ((str)[0]) == '*' && ((str)[1]) == '\0')
- if (send_interface || send_member || send_error || send_service ||
+ if (send_interface || send_member || send_error || send_destination ||
send_path || send_type)
{
int message_type;
@@ -1002,8 +1017,8 @@ append_rule_from_element (BusConfigParser *parser,
send_member = NULL;
if (IS_WILDCARD (send_error))
send_error = NULL;
- if (IS_WILDCARD (send_service))
- send_service = NULL;
+ if (IS_WILDCARD (send_destination))
+ send_destination = NULL;
if (IS_WILDCARD (send_path))
send_path = NULL;
if (IS_WILDCARD (send_type))
@@ -1025,13 +1040,13 @@ append_rule_from_element (BusConfigParser *parser,
rule = bus_policy_rule_new (BUS_POLICY_RULE_SEND, allow);
if (rule == NULL)
goto nomem;
-
+
rule->d.send.message_type = message_type;
rule->d.send.path = _dbus_strdup (send_path);
rule->d.send.interface = _dbus_strdup (send_interface);
rule->d.send.member = _dbus_strdup (send_member);
rule->d.send.error = _dbus_strdup (send_error);
- rule->d.send.destination = _dbus_strdup (send_service);
+ rule->d.send.destination = _dbus_strdup (send_destination);
if (send_path && rule->d.send.path == NULL)
goto nomem;
if (send_interface && rule->d.send.interface == NULL)
@@ -1040,11 +1055,11 @@ append_rule_from_element (BusConfigParser *parser,
goto nomem;
if (send_error && rule->d.send.error == NULL)
goto nomem;
- if (send_service && rule->d.send.destination == NULL)
+ if (send_destination && rule->d.send.destination == NULL)
goto nomem;
}
- else if (receive_interface || receive_member || receive_error || receive_service ||
- receive_path || receive_type)
+ else if (receive_interface || receive_member || receive_error || receive_sender ||
+ receive_path || receive_type || eavesdrop)
{
int message_type;
@@ -1054,14 +1069,13 @@ append_rule_from_element (BusConfigParser *parser,
receive_member = NULL;
if (IS_WILDCARD (receive_error))
receive_error = NULL;
- if (IS_WILDCARD (receive_service))
- receive_service = NULL;
+ if (IS_WILDCARD (receive_sender))
+ receive_sender = NULL;
if (IS_WILDCARD (receive_path))
receive_path = NULL;
if (IS_WILDCARD (receive_type))
receive_type = NULL;
-
message_type = DBUS_MESSAGE_TYPE_INVALID;
if (receive_type != NULL)
{
@@ -1074,17 +1088,31 @@ append_rule_from_element (BusConfigParser *parser,
return FALSE;
}
}
+
+
+ if (eavesdrop &&
+ !(strcmp (eavesdrop, "true") == 0 ||
+ strcmp (eavesdrop, "false") == 0))
+ {
+ dbus_set_error (error, DBUS_ERROR_FAILED,
+ "Bad value \"%s\" for eavesdrop attribute, must be true or false",
+ eavesdrop);
+ return FALSE;
+ }
rule = bus_policy_rule_new (BUS_POLICY_RULE_RECEIVE, allow);
if (rule == NULL)
goto nomem;
+ if (eavesdrop)
+ rule->d.receive.eavesdrop = (strcmp (eavesdrop, "true") == 0);
+
rule->d.receive.message_type = message_type;
rule->d.receive.path = _dbus_strdup (receive_path);
rule->d.receive.interface = _dbus_strdup (receive_interface);
rule->d.receive.member = _dbus_strdup (receive_member);
rule->d.receive.error = _dbus_strdup (receive_error);
- rule->d.receive.origin = _dbus_strdup (receive_service);
+ rule->d.receive.origin = _dbus_strdup (receive_sender);
if (receive_path && rule->d.receive.path == NULL)
goto nomem;
if (receive_interface && rule->d.receive.interface == NULL)
@@ -1093,7 +1121,7 @@ append_rule_from_element (BusConfigParser *parser,
goto nomem;
if (receive_error && rule->d.receive.error == NULL)
goto nomem;
- if (receive_service && rule->d.receive.origin == NULL)
+ if (receive_sender && rule->d.receive.origin == NULL)
goto nomem;
}
else if (own)
diff --git a/bus/connection.c b/bus/connection.c
index f6ce4a29..a824576c 100644
--- a/bus/connection.c
+++ b/bus/connection.c
@@ -25,6 +25,7 @@
#include "policy.h"
#include "services.h"
#include "utils.h"
+#include "signals.h"
#include <dbus/dbus-list.h>
#include <dbus/dbus-hash.h>
#include <dbus/dbus-timeout.h>
@@ -41,6 +42,7 @@ struct BusConnections
BusContext *context;
DBusHashTable *completed_by_user; /**< Number of completed connections for each UID */
DBusTimeout *expire_timeout; /**< Timeout for expiring incomplete connections. */
+ int stamp; /**< Incrementing number */
};
static dbus_int32_t connection_data_slot = -1;
@@ -52,6 +54,8 @@ typedef struct
DBusConnection *connection;
DBusList *services_owned;
int n_services_owned;
+ DBusList *match_rules;
+ int n_match_rules;
char *name;
DBusList *transaction_messages; /**< Stuff we need to send as part of a transaction */
DBusMessage *oom_message;
@@ -60,6 +64,7 @@ typedef struct
long connection_tv_sec; /**< Time when we connected (seconds component) */
long connection_tv_usec; /**< Time when we connected (microsec component) */
+ int stamp; /**< connections->stamp last time we were traversed */
} BusConnectionData;
static dbus_bool_t expire_incomplete_timeout (void *data);
@@ -140,12 +145,20 @@ bus_connection_disconnected (DBusConnection *connection)
{
BusConnectionData *d;
BusService *service;
-
+ BusMatchmaker *matchmaker;
+
d = BUS_CONNECTION_DATA (connection);
_dbus_assert (d != NULL);
_dbus_verbose ("%s disconnected, dropping all service ownership and releasing\n",
d->name ? d->name : "(inactive)");
+
+ /* Delete our match rules */
+ if (d->n_match_rules > 0)
+ {
+ matchmaker = bus_context_get_matchmaker (d->connections->context);
+ bus_matchmaker_disconnected (matchmaker, connection);
+ }
/* Drop any service ownership. FIXME Unfortunately, this requires
* memory allocation and there doesn't seem to be a good way to
@@ -881,6 +894,40 @@ bus_connections_get_context (BusConnections *connections)
return connections->context;
}
+/*
+ * This is used to avoid covering the same connection twice when
+ * traversing connections. Note that it assumes we will
+ * bus_connection_mark_stamp() each connection at least once per
+ * INT_MAX increments of the global stamp, or wraparound would break
+ * things.
+ */
+void
+bus_connections_increment_stamp (BusConnections *connections)
+{
+ connections->stamp += 1;
+}
+
+/* Mark connection with current stamp, return TRUE if it
+ * didn't already have that stamp
+ */
+dbus_bool_t
+bus_connection_mark_stamp (DBusConnection *connection)
+{
+ BusConnectionData *d;
+
+ d = BUS_CONNECTION_DATA (connection);
+
+ _dbus_assert (d != NULL);
+
+ if (d->stamp == d->connections->stamp)
+ return FALSE;
+ else
+ {
+ d->stamp = d->connections->stamp;
+ return TRUE;
+ }
+}
+
BusContext*
bus_connection_get_context (DBusConnection *connection)
{
@@ -929,6 +976,18 @@ bus_connection_get_activation (DBusConnection *connection)
return bus_context_get_activation (d->connections->context);
}
+BusMatchmaker*
+bus_connection_get_matchmaker (DBusConnection *connection)
+{
+ BusConnectionData *d;
+
+ d = BUS_CONNECTION_DATA (connection);
+
+ _dbus_assert (d != NULL);
+
+ return bus_context_get_matchmaker (d->connections->context);
+}
+
/**
* Checks whether the connection is registered with the message bus.
*
@@ -1025,6 +1084,62 @@ bus_connection_send_oom_error (DBusConnection *connection,
}
void
+bus_connection_add_match_rule_link (DBusConnection *connection,
+ DBusList *link)
+{
+ BusConnectionData *d;
+
+ d = BUS_CONNECTION_DATA (connection);
+ _dbus_assert (d != NULL);
+
+ _dbus_list_append_link (&d->match_rules, link);
+
+ d->n_match_rules += 1;
+}
+
+dbus_bool_t
+bus_connection_add_match_rule (DBusConnection *connection,
+ BusMatchRule *rule)
+{
+ DBusList *link;
+
+ link = _dbus_list_alloc_link (rule);
+
+ if (link == NULL)
+ return FALSE;
+
+ bus_connection_add_match_rule_link (connection, link);
+
+ return TRUE;
+}
+
+void
+bus_connection_remove_match_rule (DBusConnection *connection,
+ BusMatchRule *rule)
+{
+ BusConnectionData *d;
+
+ d = BUS_CONNECTION_DATA (connection);
+ _dbus_assert (d != NULL);
+
+ _dbus_list_remove_last (&d->match_rules, rule);
+
+ d->n_match_rules -= 1;
+ _dbus_assert (d->n_match_rules >= 0);
+}
+
+int
+bus_connection_get_n_match_rules (DBusConnection *connection)
+{
+ BusConnectionData *d;
+
+ d = BUS_CONNECTION_DATA (connection);
+ _dbus_assert (d != NULL);
+
+ return d->n_match_rules;
+}
+
+void
bus_connection_add_owned_service_link (DBusConnection *connection,
DBusList *link)
{
@@ -1092,6 +1207,8 @@ bus_connection_complete (DBusConnection *connection,
_dbus_assert (d != NULL);
_dbus_assert (d->name == NULL);
_dbus_assert (d->policy == NULL);
+
+ _dbus_assert (!bus_connection_is_active (connection));
if (!_dbus_string_copy_data (name, &d->name))
{
@@ -1147,6 +1264,8 @@ bus_connection_complete (DBusConnection *connection,
/* See if we can remove the timeout */
bus_connections_expire_incomplete (d->connections);
+
+ _dbus_assert (bus_connection_is_active (connection));
return TRUE;
}
@@ -1327,7 +1446,7 @@ bus_transaction_send_from_driver (BusTransaction *transaction,
* eat it; the driver doesn't care about getting a reply.
*/
if (!bus_context_check_security_policy (bus_transaction_get_context (transaction),
- NULL, connection, message, NULL))
+ NULL, connection, connection, message, NULL))
return TRUE;
return bus_transaction_send (transaction, connection, message);
diff --git a/bus/connection.h b/bus/connection.h
index 92c93267..d9fd727e 100644
--- a/bus/connection.h
+++ b/bus/connection.h
@@ -44,16 +44,18 @@ void bus_connections_foreach_active (BusConnections
BusConnectionForeachFunction function,
void *data);
BusContext* bus_connections_get_context (BusConnections *connections);
+void bus_connections_increment_stamp (BusConnections *connections);
BusContext* bus_connection_get_context (DBusConnection *connection);
BusConnections* bus_connection_get_connections (DBusConnection *connection);
BusRegistry* bus_connection_get_registry (DBusConnection *connection);
BusActivation* bus_connection_get_activation (DBusConnection *connection);
+BusMatchmaker* bus_connection_get_matchmaker (DBusConnection *connection);
dbus_bool_t bus_connections_check_limits (BusConnections *connections,
DBusConnection *requesting_completion,
DBusError *error);
void bus_connections_expire_incomplete (BusConnections *connections);
-
+dbus_bool_t bus_connection_mark_stamp (DBusConnection *connection);
dbus_bool_t bus_connection_is_active (DBusConnection *connection);
const char *bus_connection_get_name (DBusConnection *connection);
@@ -62,6 +64,15 @@ dbus_bool_t bus_connection_preallocate_oom_error (DBusConnection *connection);
void bus_connection_send_oom_error (DBusConnection *connection,
DBusMessage *in_reply_to);
+/* called by signals.c */
+dbus_bool_t bus_connection_add_match_rule (DBusConnection *connection,
+ BusMatchRule *rule);
+void bus_connection_add_match_rule_link (DBusConnection *connection,
+ DBusList *link);
+void bus_connection_remove_match_rule (DBusConnection *connection,
+ BusMatchRule *rule);
+int bus_connection_get_n_match_rules (DBusConnection *connection);
+
/* called by services.c */
dbus_bool_t bus_connection_add_owned_service (DBusConnection *connection,
diff --git a/bus/dbus-daemon-1.1.in b/bus/dbus-daemon-1.1.in
index ec915edd..b272a62e 100644
--- a/bus/dbus-daemon-1.1.in
+++ b/bus/dbus-daemon-1.1.in
@@ -328,26 +328,32 @@ in the config file.
.TP
.I "<deny>"
+.I "<allow>"
+
+.PP
+A <deny> element appears below a <policy> element and prohibits some
+action. The <allow> element makes an exception to previous <deny>
+statements, and works just like <deny> but with the inverse meaning.
.PP
-A <deny> element appears below a <policy> element and prohibits
-some action. The possible attributes of a <deny> element are:
+The possible attributes of these elements are:
.nf
send_interface="interface_name"
send_member="method_or_signal_name"
send_error="error_name"
- send_service="service_name"
- send_type="method_call|method_return|signal|error"
+ send_destination="service_name"
+ send_type="method_call" | "method_return" | "signal" | "error"
send_path="/path/name"
receive_interface="interface_name"
receive_member="method_or_signal_name"
receive_error="error_name"
- receive_service="service_name"
- receive_type="method_call|method_return|signal|error"
+ receive_sender="service_name"
+ receive_type="method_call" | "method_return" | "signal" | "error"
receive_path="/path/name"
+
+ eavesdrop="true" | "false"
- receive="messagename"
own="servicename"
user="username"
group="groupname"
@@ -359,8 +365,8 @@ Examples:
<deny send_interface="org.freedesktop.System" send_member="Reboot"/>
<deny receive_interface="org.freedesktop.System" receive_member="Reboot"/>
<deny own="org.freedesktop.System"/>
- <deny send_service="org.freedesktop.System"/>
- <deny receive_service="org.freedesktop.System"/>
+ <deny send_destination="org.freedesktop.System"/>
+ <deny receive_sender="org.freedesktop.System"/>
<deny user="john"/>
<deny group="enemies"/>
.fi
@@ -371,7 +377,7 @@ particular action. If it matches, the action is denied (unless later
rules in the config file allow it).
.PP
-send_service and receive_service rules mean that messages may not be
+send_destination and receive_sender rules mean that messages may not be
sent to or received from the *owner* of the given service, not that
they may not be sent *to that service name*. That is, if a connection
owns services A, B, C, and sending to A is denied, sending to B or C
@@ -382,6 +388,22 @@ The other send_* and receive_* attributes are purely textual/by-value
matches against the given field in the message header.
.PP
+"Eavesdropping" occurs when an application receives a message that
+was explicitly addressed to a service the application does not own.
+Eavesdropping thus only applies to messages that are addressed to
+services (i.e. it does not apply to signals).
+
+.PP
+For <allow>, eavesdrop="true" indicates that the rule matches even
+when eavesdropping. eavesdrop="false" is the default and means that
+the rule only allows messages to go to their specified recipient.
+For <deny>, eavesdrop="true" indicates that the rule matches
+only when eavesdropping. eavesdrop="false" is the default for <deny>
+also, but here it means that the rule applies always, even when
+not eavesdropping. The eavesdrop attribute can only be combined with
+receive rules (with receive_* attributes).
+
+.PP
user and group denials mean that the given user or group may
not connect to the message bus.
@@ -413,13 +435,6 @@ received" are evaluated separately.
Be careful with send_interface/receive_interface, because the
interface field in messages is optional.
-.TP
-.I "<allow>"
-
-.PP
-Makes an exception to previous <deny> statements. Works
-just like <deny> but with the inverse meaning.
-
.SH AUTHOR
See http://www.freedesktop.org/software/dbus/doc/AUTHORS
diff --git a/bus/dispatch.c b/bus/dispatch.c
index 7bdda0d4..606c68ef 100644
--- a/bus/dispatch.c
+++ b/bus/dispatch.c
@@ -28,36 +28,33 @@
#include "services.h"
#include "utils.h"
#include "bus.h"
+#include "signals.h"
#include "test.h"
#include <dbus/dbus-internals.h>
#include <string.h>
-typedef struct
-{
- BusContext *context;
- DBusConnection *sender;
- DBusMessage *message;
- BusTransaction *transaction;
- DBusError *error;
-} SendMessageData;
-
static dbus_bool_t
-send_one_message (DBusConnection *connection, void *data)
+send_one_message (DBusConnection *connection,
+ BusContext *context,
+ DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusMessage *message,
+ BusTransaction *transaction,
+ DBusError *error)
{
- SendMessageData *d = data;
-
- if (!bus_context_check_security_policy (d->context,
- d->sender,
+ if (!bus_context_check_security_policy (context,
+ sender,
+ addressed_recipient,
connection,
- d->message,
+ message,
NULL))
return TRUE; /* silently don't send it */
- if (!bus_transaction_send (d->transaction,
+ if (!bus_transaction_send (transaction,
connection,
- d->message))
+ message))
{
- BUS_SET_OOM (d->error);
+ BUS_SET_OOM (error);
return FALSE;
}
@@ -65,30 +62,60 @@ send_one_message (DBusConnection *connection, void *data)
}
dbus_bool_t
-bus_dispatch_broadcast_message (BusTransaction *transaction,
- DBusConnection *sender,
- DBusMessage *message,
- DBusError *error)
+bus_dispatch_matches (BusTransaction *transaction,
+ DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusMessage *message,
+ DBusError *error)
{
DBusError tmp_error;
- SendMessageData d;
BusConnections *connections;
+ DBusList *recipients;
+ BusMatchmaker *matchmaker;
+ DBusList *link;
+ BusContext *context;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
-
+
+ /* sender and recipient can both be NULL for the bus driver,
+ * or for signals with no particular recipient
+ */
+
+ _dbus_assert (sender == NULL || bus_connection_is_active (sender));
_dbus_assert (dbus_message_get_sender (message) != NULL);
connections = bus_transaction_get_connections (transaction);
dbus_error_init (&tmp_error);
- d.sender = sender;
- d.context = bus_transaction_get_context (transaction);
- d.message = message;
- d.transaction = transaction;
- d.error = &tmp_error;
-
- bus_connections_foreach_active (connections, send_one_message, &d);
+ context = bus_transaction_get_context (transaction);
+ matchmaker = bus_context_get_matchmaker (context);
+
+ recipients = NULL;
+ if (!bus_matchmaker_get_recipients (matchmaker,
+ bus_context_get_connections (context),
+ sender, addressed_recipient, message,
+ &recipients))
+ {
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ link = _dbus_list_get_first_link (&recipients);
+ while (link != NULL)
+ {
+ DBusConnection *dest;
+
+ dest = link->data;
+
+ if (!send_one_message (dest, context, sender, addressed_recipient,
+ message, transaction, &tmp_error))
+ break;
+
+ link = _dbus_list_get_next_link (&recipients, link);
+ }
+ _dbus_list_clear (&recipients);
+
if (dbus_error_is_set (&tmp_error))
{
dbus_move_error (&tmp_error, error);
@@ -107,10 +134,12 @@ bus_dispatch (DBusConnection *connection,
BusTransaction *transaction;
BusContext *context;
DBusHandlerResult result;
-
+ DBusConnection *addressed_recipient;
+
result = DBUS_HANDLER_RESULT_HANDLED;
transaction = NULL;
+ addressed_recipient = NULL;
dbus_error_init (&error);
context = bus_connection_get_context (connection);
@@ -143,26 +172,31 @@ bus_dispatch (DBusConnection *connection,
}
#endif /* DBUS_ENABLE_VERBOSE_MODE */
- /* If service_name is NULL, this is a message to the bus daemon, not
- * intended to actually go "on the bus"; e.g. a peer-to-peer
+ /* If service_name is NULL, if it's a signal we send it to all
+ * connections with a match rule. If it's not a signal, it goes to
+ * the bus daemon but doesn't go "on the bus"; e.g. a peer-to-peer
* ping. Handle these immediately, especially disconnection
* messages. There are no security policy checks on these.
*/
if (service_name == NULL)
- {
+ {
if (dbus_message_is_signal (message,
DBUS_INTERFACE_ORG_FREEDESKTOP_LOCAL,
"Disconnected"))
- bus_connection_disconnected (connection);
+ {
+ bus_connection_disconnected (connection);
+ goto out;
+ }
- /* DBusConnection also handles some of these automatically, we leave
- * it to do so.
- */
- result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
- goto out;
+ if (dbus_message_get_type (message) != DBUS_MESSAGE_TYPE_SIGNAL)
+ {
+ /* DBusConnection also handles some of these automatically, we leave
+ * it to do so.
+ */
+ result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+ goto out;
+ }
}
-
- _dbus_assert (service_name != NULL); /* this message is intended for bus routing */
/* Create our transaction */
transaction = bus_transaction_new (context);
@@ -191,11 +225,12 @@ bus_dispatch (DBusConnection *connection,
*/
service_name = dbus_message_get_destination (message);
}
-
- if (strcmp (service_name, DBUS_SERVICE_ORG_FREEDESKTOP_DBUS) == 0) /* to bus driver */
+
+ if (service_name &&
+ strcmp (service_name, DBUS_SERVICE_ORG_FREEDESKTOP_DBUS) == 0) /* to bus driver */
{
if (!bus_context_check_security_policy (context,
- connection, NULL, message, &error))
+ connection, NULL, NULL, message, &error))
{
_dbus_verbose ("Security policy rejected message\n");
goto out;
@@ -209,22 +244,16 @@ bus_dispatch (DBusConnection *connection,
{
_dbus_verbose ("Received message from non-registered client. Disconnecting.\n");
dbus_connection_disconnect (connection);
+ goto out;
}
- /* FIXME what if we un-special-case this service and just have a flag
- * on services that all service owners will get messages to it, not just
- * the primary owner.
- */
- else if (strcmp (service_name, DBUS_SERVICE_ORG_FREEDESKTOP_BROADCAST) == 0) /* spam! */
- {
- if (!bus_dispatch_broadcast_message (transaction, connection, message, &error))
- goto out;
- }
- else /* route to named service */
+ else if (service_name != NULL) /* route to named service */
{
DBusString service_string;
BusService *service;
BusRegistry *registry;
+ _dbus_assert (service_name != NULL);
+
registry = bus_connection_get_registry (connection);
_dbus_string_init_const (&service_string, service_name);
@@ -239,24 +268,30 @@ bus_dispatch (DBusConnection *connection,
goto out;
}
else
- {
- DBusConnection *recipient;
-
- recipient = bus_service_get_primary_owner (service);
- _dbus_assert (recipient != NULL);
+ {
+ addressed_recipient = bus_service_get_primary_owner (service);
+ _dbus_assert (addressed_recipient != NULL);
if (!bus_context_check_security_policy (context,
- connection, recipient, message, &error))
+ connection, addressed_recipient,
+ addressed_recipient,
+ message, &error))
goto out;
/* Dispatch the message */
- if (!bus_transaction_send (transaction, recipient, message))
+ if (!bus_transaction_send (transaction, addressed_recipient, message))
{
BUS_SET_OOM (&error);
goto out;
}
}
}
+
+ /* Now match the messages against any match rules, which will send
+ * out signals and such. addressed_recipient may == NULL.
+ */
+ if (!bus_dispatch_matches (transaction, connection, addressed_recipient, message, &error))
+ goto out;
out:
if (dbus_error_is_set (&error))
@@ -673,7 +708,7 @@ check_hello_message (BusContext *context,
DBusConnection *connection)
{
DBusMessage *message;
- dbus_int32_t serial;
+ dbus_uint32_t serial;
dbus_bool_t retval;
DBusError error;
char *name;
@@ -684,6 +719,8 @@ check_hello_message (BusContext *context,
name = NULL;
acquired = NULL;
message = NULL;
+
+ _dbus_verbose ("check_hello_message for %p\n", connection);
message = dbus_message_new_method_call (DBUS_SERVICE_ORG_FREEDESKTOP_DBUS,
DBUS_PATH_ORG_FREEDESKTOP_DBUS,
@@ -791,7 +828,7 @@ check_hello_message (BusContext *context,
while (!dbus_bus_set_base_service (connection, name))
_dbus_wait_for_memory ();
- scd.skip_connection = NULL;
+ scd.skip_connection = connection; /* we haven't done AddMatch so won't get it ourselves */
scd.failed = FALSE;
scd.expected_service_name = name;
bus_test_clients_foreach (check_service_created_foreach,
@@ -861,6 +898,126 @@ check_hello_message (BusContext *context,
* but the correct thing may include OOM errors.
*/
static dbus_bool_t
+check_add_match_all (BusContext *context,
+ DBusConnection *connection)
+{
+ DBusMessage *message;
+ dbus_bool_t retval;
+ dbus_uint32_t serial;
+ DBusError error;
+
+ retval = FALSE;
+ dbus_error_init (&error);
+ message = NULL;
+
+ _dbus_verbose ("check_add_match_all for %p\n", connection);
+
+ message = dbus_message_new_method_call (DBUS_SERVICE_ORG_FREEDESKTOP_DBUS,
+ DBUS_PATH_ORG_FREEDESKTOP_DBUS,
+ DBUS_INTERFACE_ORG_FREEDESKTOP_DBUS,
+ "AddMatch");
+
+ if (message == NULL)
+ return TRUE;
+
+ if (!dbus_message_append_args (message, DBUS_TYPE_STRING, "", /* FIXME */
+ DBUS_TYPE_INVALID))
+ {
+ dbus_message_unref (message);
+ return TRUE;
+ }
+
+ if (!dbus_connection_send (connection, message, &serial))
+ {
+ dbus_message_unref (message);
+ return TRUE;
+ }
+
+ dbus_message_unref (message);
+ message = NULL;
+
+ /* send our message */
+ bus_test_run_clients_loop (TRUE);
+
+ dbus_connection_ref (connection); /* because we may get disconnected */
+ block_connection_until_message_from_bus (context, connection);
+
+ if (!dbus_connection_get_is_connected (connection))
+ {
+ _dbus_verbose ("connection was disconnected\n");
+
+ dbus_connection_unref (connection);
+
+ return TRUE;
+ }
+
+ dbus_connection_unref (connection);
+
+ message = pop_message_waiting_for_memory (connection);
+ if (message == NULL)
+ {
+ _dbus_warn ("Did not receive a reply to %s %d on %p\n",
+ "AddMatch", serial, connection);
+ goto out;
+ }
+
+ verbose_message_received (connection, message);
+
+ if (!dbus_message_has_sender (message, DBUS_SERVICE_ORG_FREEDESKTOP_DBUS))
+ {
+ _dbus_warn ("Message has wrong sender %s\n",
+ dbus_message_get_sender (message) ?
+ dbus_message_get_sender (message) : "(none)");
+ goto out;
+ }
+
+ if (dbus_message_get_type (message) == DBUS_MESSAGE_TYPE_ERROR)
+ {
+ if (dbus_message_is_error (message,
+ DBUS_ERROR_NO_MEMORY))
+ {
+ ; /* good, this is a valid response */
+ }
+ else
+ {
+ warn_unexpected (connection, message, "not this error");
+
+ goto out;
+ }
+ }
+ else
+ {
+ if (dbus_message_get_type (message) == DBUS_MESSAGE_TYPE_METHOD_RETURN)
+ {
+ ; /* good, expected */
+ _dbus_assert (dbus_message_get_reply_serial (message) == serial);
+ }
+ else
+ {
+ warn_unexpected (connection, message, "method return for AddMatch");
+
+ goto out;
+ }
+ }
+
+ if (!check_no_leftovers (context))
+ goto out;
+
+ retval = TRUE;
+
+ out:
+ dbus_error_free (&error);
+
+ if (message)
+ dbus_message_unref (message);
+
+ return retval;
+}
+
+/* returns TRUE if the correct thing happens,
+ * but the correct thing may include OOM errors.
+ */
+static dbus_bool_t
check_hello_connection (BusContext *context)
{
DBusConnection *connection;
@@ -885,7 +1042,7 @@ check_hello_connection (BusContext *context)
if (!check_hello_message (context, connection))
return FALSE;
-
+
if (dbus_bus_get_base_service (connection) == NULL)
{
/* We didn't successfully register, so we can't
@@ -895,6 +1052,9 @@ check_hello_connection (BusContext *context)
}
else
{
+ if (!check_add_match_all (context, connection))
+ return FALSE;
+
kill_client_connection (context, connection);
}
@@ -911,7 +1071,7 @@ check_nonexistent_service_activation (BusContext *context,
DBusConnection *connection)
{
DBusMessage *message;
- dbus_int32_t serial;
+ dbus_uint32_t serial;
dbus_bool_t retval;
DBusError error;
@@ -1293,7 +1453,7 @@ check_send_exit_to_service (BusContext *context,
{
dbus_bool_t got_error;
DBusMessage *message;
- dbus_int32_t serial;
+ dbus_uint32_t serial;
dbus_bool_t retval;
_dbus_verbose ("Sending exit message to the test service\n");
@@ -1462,7 +1622,7 @@ check_existent_service_activation (BusContext *context,
DBusConnection *connection)
{
DBusMessage *message;
- dbus_int32_t serial;
+ dbus_uint32_t serial;
dbus_bool_t retval;
DBusError error;
char *base_service;
@@ -1676,7 +1836,7 @@ check_segfault_service_activation (BusContext *context,
DBusConnection *connection)
{
DBusMessage *message;
- dbus_int32_t serial;
+ dbus_uint32_t serial;
dbus_bool_t retval;
DBusError error;
@@ -1877,6 +2037,9 @@ bus_dispatch_test (const DBusString *test_data_dir)
if (!check_hello_message (context, foo))
_dbus_assert_not_reached ("hello message failed");
+
+ if (!check_add_match_all (context, foo))
+ _dbus_assert_not_reached ("AddMatch message failed");
bar = dbus_connection_open ("debug-pipe:name=test-server", &error);
if (bar == NULL)
@@ -1887,6 +2050,9 @@ bus_dispatch_test (const DBusString *test_data_dir)
if (!check_hello_message (context, bar))
_dbus_assert_not_reached ("hello message failed");
+
+ if (!check_add_match_all (context, bar))
+ _dbus_assert_not_reached ("AddMatch message failed");
baz = dbus_connection_open ("debug-pipe:name=test-server", &error);
if (baz == NULL)
@@ -1898,6 +2064,9 @@ bus_dispatch_test (const DBusString *test_data_dir)
if (!check_hello_message (context, baz))
_dbus_assert_not_reached ("hello message failed");
+ if (!check_add_match_all (context, baz))
+ _dbus_assert_not_reached ("AddMatch message failed");
+
if (!check_no_leftovers (context))
{
_dbus_warn ("Messages were left over after setting up initial connections");
@@ -1954,6 +2123,9 @@ bus_dispatch_sha1_test (const DBusString *test_data_dir)
if (!check_hello_message (context, foo))
_dbus_assert_not_reached ("hello message failed");
+ if (!check_add_match_all (context, foo))
+ _dbus_assert_not_reached ("addmatch message failed");
+
if (!check_no_leftovers (context))
{
_dbus_warn ("Messages were left over after setting up initial SHA-1 connection\n");
diff --git a/bus/dispatch.h b/bus/dispatch.h
index 18f74529..d8107b1a 100644
--- a/bus/dispatch.h
+++ b/bus/dispatch.h
@@ -29,8 +29,9 @@
dbus_bool_t bus_dispatch_add_connection (DBusConnection *connection);
void bus_dispatch_remove_connection (DBusConnection *connection);
-dbus_bool_t bus_dispatch_broadcast_message (BusTransaction *transaction,
+dbus_bool_t bus_dispatch_matches (BusTransaction *transaction,
DBusConnection *sender,
+ DBusConnection *recipient,
DBusMessage *message,
DBusError *error);
diff --git a/bus/driver.c b/bus/driver.c
index 61bfe1c5..791fcd69 100644
--- a/bus/driver.c
+++ b/bus/driver.c
@@ -27,6 +27,7 @@
#include "driver.h"
#include "dispatch.h"
#include "services.h"
+#include "signals.h"
#include "utils.h"
#include <dbus/dbus-string.h>
#include <dbus/dbus-internals.h>
@@ -69,7 +70,7 @@ bus_driver_send_service_deleted (const char *service_name,
return FALSE;
}
- retval = bus_dispatch_broadcast_message (transaction, NULL, message, error);
+ retval = bus_dispatch_matches (transaction, NULL, NULL, message, error);
dbus_message_unref (message);
return retval;
@@ -111,7 +112,7 @@ bus_driver_send_service_created (const char *service_name,
return FALSE;
}
- retval = bus_dispatch_broadcast_message (transaction, NULL, message, error);
+ retval = bus_dispatch_matches (transaction, NULL, NULL, message, error);
dbus_message_unref (message);
return retval;
@@ -331,6 +332,7 @@ bus_driver_handle_hello (DBusConnection *connection,
bus_service_set_prohibit_replacement (service, TRUE);
+ _dbus_assert (bus_connection_is_active (connection));
retval = TRUE;
out_0:
@@ -600,6 +602,160 @@ bus_driver_handle_activate_service (DBusConnection *connection,
return retval;
}
+static dbus_bool_t
+send_ack_reply (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ DBusMessage *reply;
+
+ reply = dbus_message_new_method_return (message);
+ if (reply == NULL)
+ {
+ BUS_SET_OOM (error);
+ return FALSE;
+ }
+
+ if (!bus_transaction_send_from_driver (transaction, connection, reply))
+ {
+ BUS_SET_OOM (error);
+ dbus_message_unref (reply);
+ return FALSE;
+ }
+
+ dbus_message_unref (reply);
+
+ return TRUE;
+}
+
+static dbus_bool_t
+bus_driver_handle_add_match (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ BusMatchRule *rule;
+ char *text;
+ DBusString str;
+ BusMatchmaker *matchmaker;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ text = NULL;
+ rule = NULL;
+
+ if (bus_connection_get_n_match_rules (connection) >=
+ bus_context_get_max_match_rules_per_connection (bus_transaction_get_context (transaction)))
+ {
+ dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
+ "Connection \"%s\" is not allowed to add more match rules "
+ "(increase limits in configuration file if required)",
+ bus_connection_is_active (connection) ?
+ bus_connection_get_name (connection) :
+ "(inactive)");
+ goto failed;
+ }
+
+ if (!dbus_message_get_args (message, error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID))
+ {
+ _dbus_verbose ("No memory to get arguments to AddMatch\n");
+ goto failed;
+ }
+
+ _dbus_string_init_const (&str, text);
+
+ rule = bus_match_rule_parse (connection, &str, error);
+ if (rule == NULL)
+ goto failed;
+
+ matchmaker = bus_connection_get_matchmaker (connection);
+
+ if (!bus_matchmaker_add_rule (matchmaker, rule))
+ {
+ BUS_SET_OOM (error);
+ goto failed;
+ }
+
+ if (!send_ack_reply (connection, transaction,
+ message, error))
+ {
+ bus_matchmaker_remove_rule (matchmaker, rule);
+ goto failed;
+ }
+
+ bus_match_rule_unref (rule);
+ dbus_free (text);
+
+ return TRUE;
+
+ failed:
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ if (rule)
+ bus_match_rule_unref (rule);
+ if (text)
+ dbus_free (text);
+ return FALSE;
+}
+
+static dbus_bool_t
+bus_driver_handle_remove_match (DBusConnection *connection,
+ BusTransaction *transaction,
+ DBusMessage *message,
+ DBusError *error)
+{
+ BusMatchRule *rule;
+ char *text;
+ DBusString str;
+ BusMatchmaker *matchmaker;
+
+ _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+ text = NULL;
+ rule = NULL;
+
+ if (!dbus_message_get_args (message, error,
+ DBUS_TYPE_STRING, &text,
+ DBUS_TYPE_INVALID))
+ {
+ _dbus_verbose ("No memory to get arguments to RemoveMatch\n");
+ goto failed;
+ }
+
+ _dbus_string_init_const (&str, text);
+
+ rule = bus_match_rule_parse (connection, &str, error);
+ if (rule == NULL)
+ goto failed;
+
+ /* Send the ack before we remove the rule, since the ack is undone
+ * on transaction cancel, but rule removal isn't.
+ */
+ if (!send_ack_reply (connection, transaction,
+ message, error))
+ goto failed;
+
+ matchmaker = bus_connection_get_matchmaker (connection);
+
+ if (!bus_matchmaker_remove_rule_by_value (matchmaker, rule, error))
+ goto failed;
+
+ bus_match_rule_unref (rule);
+ dbus_free (text);
+
+ return TRUE;
+
+ failed:
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ if (rule)
+ bus_match_rule_unref (rule);
+ if (text)
+ dbus_free (text);
+ return FALSE;
+}
+
/* For speed it might be useful to sort this in order of
* frequency of use (but doesn't matter with only a few items
* anyhow)
@@ -616,7 +772,9 @@ struct
{ "ActivateService", bus_driver_handle_activate_service },
{ "Hello", bus_driver_handle_hello },
{ "ServiceExists", bus_driver_handle_service_exists },
- { "ListServices", bus_driver_handle_list_services }
+ { "ListServices", bus_driver_handle_list_services },
+ { "AddMatch", bus_driver_handle_add_match },
+ { "RemoveMatch", bus_driver_handle_remove_match }
};
dbus_bool_t
diff --git a/bus/policy.c b/bus/policy.c
index 21d0b02e..2d462fb6 100644
--- a/bus/policy.c
+++ b/bus/policy.c
@@ -917,16 +917,33 @@ dbus_bool_t
bus_client_policy_check_can_receive (BusClientPolicy *policy,
BusRegistry *registry,
DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusConnection *proposed_recipient,
DBusMessage *message)
{
DBusList *link;
dbus_bool_t allowed;
+ dbus_bool_t eavesdropping;
+
+ /* NULL sender, proposed_recipient means the bus driver. NULL
+ * addressed_recipient means the message didn't specify an explicit
+ * target. If proposed_recipient is NULL, then addressed_recipient
+ * is also NULL but is implicitly the bus driver.
+ */
+
+ _dbus_assert (proposed_recipient == NULL ||
+ (dbus_message_get_destination (message) == NULL ||
+ addressed_recipient != NULL));
+
+ eavesdropping =
+ (proposed_recipient == NULL || /* explicitly to bus driver */
+ (addressed_recipient && addressed_recipient != proposed_recipient)); /* explicitly to a different recipient */
/* policy->rules is in the order the rules appeared
* in the config file, i.e. last rule that applies wins
*/
- _dbus_verbose (" (policy) checking receive rules\n");
+ _dbus_verbose (" (policy) checking receive rules, eavesdropping = %d\n", eavesdropping);
allowed = FALSE;
link = _dbus_list_get_first_link (&policy->rules);
@@ -950,6 +967,24 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy,
continue;
}
}
+
+ /* for allow, eavesdrop=false means the rule doesn't apply when
+ * eavesdropping. eavesdrop=true means always allow.
+ */
+ if (eavesdropping && rule->allow && !rule->d.receive.eavesdrop)
+ {
+ _dbus_verbose (" (policy) skipping allow rule since it doesn't apply to eavesdropping\n");
+ continue;
+ }
+
+ /* for deny, eavesdrop=true means the rule applies only when
+ * eavesdropping; eavesdrop=false means always deny.
+ */
+ if (!eavesdropping && !rule->allow && rule->d.receive.eavesdrop)
+ {
+ _dbus_verbose (" (policy) skipping deny rule since it only applies to eavesdropping\n");
+ continue;
+ }
if (rule->d.receive.path != NULL)
{
@@ -1036,7 +1071,7 @@ bus_client_policy_check_can_receive (BusClientPolicy *policy,
}
}
}
-
+
/* Use this rule */
allowed = rule->allow;
diff --git a/bus/policy.h b/bus/policy.h
index 5824816c..63981cc0 100644
--- a/bus/policy.h
+++ b/bus/policy.h
@@ -74,6 +74,7 @@ struct BusPolicyRule
char *member;
char *error;
char *origin;
+ unsigned int eavesdrop : 1;
} receive;
struct
@@ -134,6 +135,8 @@ dbus_bool_t bus_client_policy_check_can_send (BusClientPolicy *policy,
dbus_bool_t bus_client_policy_check_can_receive (BusClientPolicy *policy,
BusRegistry *registry,
DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusConnection *proposed_recipient,
DBusMessage *message);
dbus_bool_t bus_client_policy_check_can_own (BusClientPolicy *policy,
DBusConnection *connection,
diff --git a/bus/session.conf.in b/bus/session.conf.in
index 09dd250e..45945688 100644
--- a/bus/session.conf.in
+++ b/bus/session.conf.in
@@ -14,10 +14,9 @@
<policy context="default">
<!-- Allow everything -->
- <allow send_interface="*"/>
- <allow receive_interface="*"/>
+ <allow eavesdrop="true"/>
<allow own="*"/>
- <allow user="*"/>
+ <allow user="*"/>
</policy>
<!-- This is included last so local configuration can override what's
diff --git a/bus/signals.c b/bus/signals.c
new file mode 100644
index 00000000..db7b0665
--- /dev/null
+++ b/bus/signals.c
@@ -0,0 +1,774 @@
+/* -*- mode: C; c-file-style: "gnu" -*- */
+/* signals.c Bus signal connection implementation
+ *
+ * Copyright (C) 2003 Red Hat, Inc.
+ *
+ * Licensed under the Academic Free License version 1.2
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+#include "signals.h"
+#include "services.h"
+#include "utils.h"
+
+struct BusMatchRule
+{
+ int refcount; /**< reference count */
+
+ DBusConnection *matches_go_to; /**< Owner of the rule */
+
+ unsigned int flags; /**< BusMatchFlags */
+
+ int message_type;
+ char *interface;
+ char *member;
+ char *sender;
+ char *destination;
+ char *path;
+};
+
+BusMatchRule*
+bus_match_rule_new (DBusConnection *matches_go_to)
+{
+ BusMatchRule *rule;
+
+ rule = dbus_new0 (BusMatchRule, 1);
+ if (rule == NULL)
+ return NULL;
+
+ rule->refcount = 1;
+ rule->matches_go_to = matches_go_to;
+
+ return rule;
+}
+
+void
+bus_match_rule_ref (BusMatchRule *rule)
+{
+ _dbus_assert (rule->refcount > 0);
+
+ rule->refcount += 1;
+}
+
+void
+bus_match_rule_unref (BusMatchRule *rule)
+{
+ _dbus_assert (rule->refcount > 0);
+
+ rule->refcount -= 1;
+ if (rule->refcount == 0)
+ {
+ dbus_free (rule->interface);
+ dbus_free (rule->member);
+ dbus_free (rule->sender);
+ dbus_free (rule->destination);
+ dbus_free (rule->path);
+ dbus_free (rule);
+ }
+}
+
+#ifdef DBUS_ENABLE_VERBOSE_MODE
+static char*
+match_rule_to_string (BusMatchRule *rule)
+{
+ DBusString str;
+ char *ret;
+
+ if (!_dbus_string_init (&str))
+ {
+ char *s;
+ while ((s = _dbus_strdup ("nomem")) == NULL)
+ ; /* only OK for debug spew... */
+ return s;
+ }
+
+ if (rule->flags & BUS_MATCH_MESSAGE_TYPE)
+ {
+ /* FIXME make type readable */
+ if (!_dbus_string_append_printf (&str, "type='%d'", rule->message_type))
+ goto nomem;
+ }
+
+ if (rule->flags & BUS_MATCH_INTERFACE)
+ {
+ if (_dbus_string_get_length (&str) > 0)
+ {
+ if (!_dbus_string_append (&str, ","))
+ goto nomem;
+ }
+
+ if (!_dbus_string_append_printf (&str, "interface='%s'", rule->interface))
+ goto nomem;
+ }
+
+ if (rule->flags & BUS_MATCH_MEMBER)
+ {
+ if (_dbus_string_get_length (&str) > 0)
+ {
+ if (!_dbus_string_append (&str, ","))
+ goto nomem;
+ }
+
+ if (!_dbus_string_append_printf (&str, "member='%s'", rule->member))
+ goto nomem;
+ }
+
+ if (rule->flags & BUS_MATCH_PATH)
+ {
+ if (_dbus_string_get_length (&str) > 0)
+ {
+ if (!_dbus_string_append (&str, ","))
+ goto nomem;
+ }
+
+ if (!_dbus_string_append_printf (&str, "path='%s'", rule->path))
+ goto nomem;
+ }
+
+ if (rule->flags & BUS_MATCH_SENDER)
+ {
+ if (_dbus_string_get_length (&str) > 0)
+ {
+ if (!_dbus_string_append (&str, ","))
+ goto nomem;
+ }
+
+ if (!_dbus_string_append_printf (&str, "sender='%s'", rule->sender))
+ goto nomem;
+ }
+
+ if (rule->flags & BUS_MATCH_DESTINATION)
+ {
+ if (_dbus_string_get_length (&str) > 0)
+ {
+ if (!_dbus_string_append (&str, ","))
+ goto nomem;
+ }
+
+ if (!_dbus_string_append_printf (&str, "destination='%s'", rule->destination))
+ goto nomem;
+ }
+
+ if (!_dbus_string_steal_data (&str, &ret))
+ goto nomem;
+
+ _dbus_string_free (&str);
+ return ret;
+
+ nomem:
+ _dbus_string_free (&str);
+ {
+ char *s;
+ while ((s = _dbus_strdup ("nomem")) == NULL)
+ ; /* only OK for debug spew... */
+ return s;
+ }
+}
+#endif /* DBUS_ENABLE_VERBOSE_MODE */
+
+dbus_bool_t
+bus_match_rule_set_message_type (BusMatchRule *rule,
+ int type)
+{
+ rule->flags |= BUS_MATCH_MESSAGE_TYPE;
+
+ rule->message_type = type;
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_match_rule_set_interface (BusMatchRule *rule,
+ const char *interface)
+{
+ char *new;
+
+ _dbus_assert (interface != NULL);
+
+ new = _dbus_strdup (interface);
+ if (new == NULL)
+ return FALSE;
+
+ rule->flags |= BUS_MATCH_INTERFACE;
+ dbus_free (rule->interface);
+ rule->interface = new;
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_match_rule_set_member (BusMatchRule *rule,
+ const char *member)
+{
+ char *new;
+
+ _dbus_assert (member != NULL);
+
+ new = _dbus_strdup (member);
+ if (new == NULL)
+ return FALSE;
+
+ rule->flags |= BUS_MATCH_MEMBER;
+ dbus_free (rule->member);
+ rule->member = new;
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_match_rule_set_sender (BusMatchRule *rule,
+ const char *sender)
+{
+ char *new;
+
+ _dbus_assert (sender != NULL);
+
+ new = _dbus_strdup (sender);
+ if (new == NULL)
+ return FALSE;
+
+ rule->flags |= BUS_MATCH_SENDER;
+ dbus_free (rule->sender);
+ rule->sender = new;
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_match_rule_set_destination (BusMatchRule *rule,
+ const char *destination)
+{
+ char *new;
+
+ _dbus_assert (destination != NULL);
+
+ new = _dbus_strdup (destination);
+ if (new == NULL)
+ return FALSE;
+
+ rule->flags |= BUS_MATCH_DESTINATION;
+ dbus_free (rule->destination);
+ rule->destination = new;
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_match_rule_set_path (BusMatchRule *rule,
+ const char *path)
+{
+ char *new;
+
+ _dbus_assert (path != NULL);
+
+ new = _dbus_strdup (path);
+ if (new == NULL)
+ return FALSE;
+
+ rule->flags |= BUS_MATCH_PATH;
+ dbus_free (rule->path);
+ rule->path = new;
+
+ return TRUE;
+}
+
+/*
+ * The format is comma-separated with strings quoted with single quotes
+ * as for the shell (to escape a literal single quote, use '\'').
+ *
+ * type='signal',sender='org.freedesktop.DBus',interface='org.freedesktop.DBus',member='Foo',
+ * path='/bar/foo',destination=':452345-34'
+ *
+ */
+BusMatchRule*
+bus_match_rule_parse (DBusConnection *matches_go_to,
+ const DBusString *rule_text,
+ DBusError *error)
+{
+ BusMatchRule *rule;
+
+ rule = bus_match_rule_new (matches_go_to);
+ if (rule == NULL)
+ goto oom;
+
+ /* FIXME implement for real */
+
+ if (!bus_match_rule_set_message_type (rule,
+ DBUS_MESSAGE_TYPE_SIGNAL))
+ goto oom;
+
+ return rule;
+
+ oom:
+ if (rule)
+ bus_match_rule_unref (rule);
+ BUS_SET_OOM (error);
+ return NULL;
+}
+
+struct BusMatchmaker
+{
+ int refcount;
+
+ DBusList *all_rules;
+};
+
+BusMatchmaker*
+bus_matchmaker_new (void)
+{
+ BusMatchmaker *matchmaker;
+
+ matchmaker = dbus_new0 (BusMatchmaker, 1);
+ if (matchmaker == NULL)
+ return NULL;
+
+ matchmaker->refcount = 1;
+
+ return matchmaker;
+}
+
+void
+bus_matchmaker_ref (BusMatchmaker *matchmaker)
+{
+ _dbus_assert (matchmaker->refcount > 0);
+
+ matchmaker->refcount += 1;
+}
+
+void
+bus_matchmaker_unref (BusMatchmaker *matchmaker)
+{
+ _dbus_assert (matchmaker->refcount > 0);
+
+ matchmaker->refcount -= 1;
+ if (matchmaker->refcount == 0)
+ {
+ while (matchmaker->all_rules != NULL)
+ {
+ BusMatchRule *rule;
+
+ rule = matchmaker->all_rules->data;
+ bus_match_rule_unref (rule);
+ _dbus_list_remove_link (&matchmaker->all_rules,
+ matchmaker->all_rules);
+ }
+
+ dbus_free (matchmaker);
+ }
+}
+
+/* The rule can't be modified after it's added. */
+dbus_bool_t
+bus_matchmaker_add_rule (BusMatchmaker *matchmaker,
+ BusMatchRule *rule)
+{
+ _dbus_assert (bus_connection_is_active (rule->matches_go_to));
+
+ if (!_dbus_list_append (&matchmaker->all_rules, rule))
+ return FALSE;
+
+ if (!bus_connection_add_match_rule (rule->matches_go_to, rule))
+ {
+ _dbus_list_remove_last (&matchmaker->all_rules, rule);
+ return FALSE;
+ }
+
+ bus_match_rule_ref (rule);
+
+#ifdef DBUS_ENABLE_VERBOSE_MODE
+ {
+ char *s = match_rule_to_string (rule);
+
+ _dbus_verbose ("Added match rule %s to connection %p\n",
+ s, rule->matches_go_to);
+ dbus_free (s);
+ }
+#endif
+
+ return TRUE;
+}
+
+static dbus_bool_t
+match_rule_equal (BusMatchRule *a,
+ BusMatchRule *b)
+{
+ if (a->flags != b->flags)
+ return FALSE;
+
+ if ((a->flags & BUS_MATCH_MESSAGE_TYPE) &&
+ a->message_type != b->message_type)
+ return FALSE;
+
+ if ((a->flags & BUS_MATCH_MEMBER) &&
+ strcmp (a->member, b->member) != 0)
+ return FALSE;
+
+ if ((a->flags & BUS_MATCH_PATH) &&
+ strcmp (a->path, b->path) != 0)
+ return FALSE;
+
+ if ((a->flags & BUS_MATCH_INTERFACE) &&
+ strcmp (a->interface, b->interface) != 0)
+ return FALSE;
+
+ if ((a->flags & BUS_MATCH_SENDER) &&
+ strcmp (a->sender, b->sender) != 0)
+ return FALSE;
+
+ if ((a->flags & BUS_MATCH_DESTINATION) &&
+ strcmp (a->destination, b->destination) != 0)
+ return FALSE;
+
+ return TRUE;
+}
+
+static void
+bus_matchmaker_remove_rule_link (BusMatchmaker *matchmaker,
+ DBusList *link)
+{
+ BusMatchRule *rule = link->data;
+
+ bus_connection_remove_match_rule (rule->matches_go_to, rule);
+ _dbus_list_remove_link (&matchmaker->all_rules, link);
+
+#ifdef DBUS_ENABLE_VERBOSE_MODE
+ {
+ char *s = match_rule_to_string (rule);
+
+ _dbus_verbose ("Removed match rule %s for connection %p\n",
+ s, rule->matches_go_to);
+ dbus_free (s);
+ }
+#endif
+
+ bus_match_rule_unref (rule);
+}
+
+void
+bus_matchmaker_remove_rule (BusMatchmaker *matchmaker,
+ BusMatchRule *rule)
+{
+ bus_connection_remove_match_rule (rule->matches_go_to, rule);
+ _dbus_list_remove (&matchmaker->all_rules, rule);
+
+#ifdef DBUS_ENABLE_VERBOSE_MODE
+ {
+ char *s = match_rule_to_string (rule);
+
+ _dbus_verbose ("Removed match rule %s for connection %p\n",
+ s, rule->matches_go_to);
+ dbus_free (s);
+ }
+#endif
+
+ bus_match_rule_unref (rule);
+}
+
+/* Remove a single rule which is equal to the given rule by value */
+dbus_bool_t
+bus_matchmaker_remove_rule_by_value (BusMatchmaker *matchmaker,
+ BusMatchRule *value,
+ DBusError *error)
+{
+ /* FIXME this is an unoptimized linear scan */
+
+ DBusList *link;
+
+ /* we traverse backward because bus_connection_remove_match_rule()
+ * removes the most-recently-added rule
+ */
+ link = _dbus_list_get_last_link (&matchmaker->all_rules);
+ while (link != NULL)
+ {
+ BusMatchRule *rule;
+ DBusList *prev;
+
+ rule = link->data;
+ prev = _dbus_list_get_prev_link (&matchmaker->all_rules, link);
+
+ if (match_rule_equal (rule, value))
+ {
+ bus_matchmaker_remove_rule_link (matchmaker, link);
+ break;
+ }
+
+ link = prev;
+ }
+
+ if (link == NULL)
+ {
+ dbus_set_error (error, DBUS_ERROR_MATCH_RULE_NOT_FOUND,
+ "The given match rule wasn't found and can't be removed");
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+void
+bus_matchmaker_disconnected (BusMatchmaker *matchmaker,
+ DBusConnection *disconnected)
+{
+ DBusList *link;
+
+ /* FIXME
+ *
+ * This scans all match rules on the bus. We could avoid that
+ * for the rules belonging to the connection, since we keep
+ * a list of those; but for the rules that just refer to
+ * the connection we'd need to do something more elaborate.
+ *
+ */
+
+ _dbus_assert (bus_connection_is_active (disconnected));
+
+ link = _dbus_list_get_first_link (&matchmaker->all_rules);
+ while (link != NULL)
+ {
+ BusMatchRule *rule;
+ DBusList *next;
+
+ rule = link->data;
+ next = _dbus_list_get_next_link (&matchmaker->all_rules, link);
+
+ if (rule->matches_go_to == disconnected)
+ {
+ bus_matchmaker_remove_rule_link (matchmaker, link);
+ }
+ else if (((rule->flags & BUS_MATCH_SENDER) && *rule->sender == ':') ||
+ ((rule->flags & BUS_MATCH_DESTINATION) && *rule->destination == ':'))
+ {
+ /* The rule matches to/from a base service, see if it's the
+ * one being disconnected, since we know this service name
+ * will never be recycled.
+ */
+ const char *name;
+
+ name = bus_connection_get_name (disconnected);
+ _dbus_assert (name != NULL); /* because we're an active connection */
+
+ if (((rule->flags & BUS_MATCH_SENDER) &&
+ strcmp (rule->sender, name) == 0) ||
+ ((rule->flags & BUS_MATCH_DESTINATION) &&
+ strcmp (rule->destination, name) == 0))
+ {
+ bus_matchmaker_remove_rule_link (matchmaker, link);
+ }
+ }
+
+ link = next;
+ }
+}
+
+static dbus_bool_t
+connection_is_primary_owner (DBusConnection *connection,
+ const char *service_name)
+{
+ BusService *service;
+ DBusString str;
+ BusRegistry *registry;
+
+ registry = bus_connection_get_registry (connection);
+
+ _dbus_string_init_const (&str, service_name);
+ service = bus_registry_lookup (registry, &str);
+
+ if (service == NULL)
+ return FALSE; /* Service doesn't exist so connection can't own it. */
+
+ return bus_service_get_primary_owner (service) == connection;
+}
+
+static dbus_bool_t
+match_rule_matches (BusMatchRule *rule,
+ BusConnections *connections,
+ DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusMessage *message)
+{
+ /* All features of the match rule are AND'd together,
+ * so FALSE if any of them don't match.
+ */
+
+ if (rule->flags & BUS_MATCH_MESSAGE_TYPE)
+ {
+ _dbus_assert (rule->message_type != DBUS_MESSAGE_TYPE_INVALID);
+
+ if (rule->message_type != dbus_message_get_type (message))
+ return FALSE;
+ }
+
+ if (rule->flags & BUS_MATCH_INTERFACE)
+ {
+ const char *iface;
+
+ _dbus_assert (rule->interface != NULL);
+
+ iface = dbus_message_get_interface (message);
+ if (iface == NULL)
+ return FALSE;
+
+ if (strcmp (iface, rule->interface) != 0)
+ return FALSE;
+ }
+
+ if (rule->flags & BUS_MATCH_MEMBER)
+ {
+ const char *member;
+
+ _dbus_assert (rule->member != NULL);
+
+ member = dbus_message_get_member (message);
+ if (member == NULL)
+ return FALSE;
+
+ if (strcmp (member, rule->member) != 0)
+ return FALSE;
+ }
+
+ if (rule->flags & BUS_MATCH_SENDER)
+ {
+ _dbus_assert (rule->sender != NULL);
+
+ if (!connection_is_primary_owner (sender, rule->sender))
+ return FALSE;
+ }
+
+ if (rule->flags & BUS_MATCH_DESTINATION)
+ {
+ const char *destination;
+
+ _dbus_assert (rule->destination != NULL);
+
+ if (addressed_recipient == NULL)
+ return FALSE;
+
+ destination = dbus_message_get_destination (message);
+ if (destination == NULL)
+ return FALSE;
+
+ if (!connection_is_primary_owner (addressed_recipient, rule->destination))
+ return FALSE;
+ }
+
+ if (rule->flags & BUS_MATCH_PATH)
+ {
+ const char *path;
+
+ _dbus_assert (rule->path != NULL);
+
+ path = dbus_message_get_path (message);
+ if (path == NULL)
+ return FALSE;
+
+ if (strcmp (path, rule->path) != 0)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+dbus_bool_t
+bus_matchmaker_get_recipients (BusMatchmaker *matchmaker,
+ BusConnections *connections,
+ DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusMessage *message,
+ DBusList **recipients_p)
+{
+ /* FIXME for now this is a wholly unoptimized linear search */
+
+ DBusList *link;
+
+ _dbus_assert (*recipients_p == NULL);
+
+ /* This avoids sending same message to the same connection twice.
+ * Purpose of the stamp instead of a bool is to avoid iterating over
+ * all connections resetting the bool each time.
+ */
+ bus_connections_increment_stamp (connections);
+
+ /* addressed_recipient is already receiving the message, don't add to list.
+ * NULL addressed_recipient means either bus driver, or this is a signal
+ * and thus lacks a specific addressed_recipient.
+ */
+ if (addressed_recipient != NULL)
+ bus_connection_mark_stamp (addressed_recipient);
+
+ link = _dbus_list_get_first_link (&matchmaker->all_rules);
+ while (link != NULL)
+ {
+ BusMatchRule *rule;
+
+ rule = link->data;
+
+#ifdef DBUS_ENABLE_VERBOSE_MODE
+ {
+ char *s = match_rule_to_string (rule);
+
+ _dbus_verbose ("Checking whether message matches rule %s for connection %p\n",
+ s, rule->matches_go_to);
+ dbus_free (s);
+ }
+#endif
+
+ if (match_rule_matches (rule, connections,
+ sender, addressed_recipient, message))
+ {
+ _dbus_verbose ("Rule matched\n");
+
+ /* Append to the list if we haven't already */
+ if (bus_connection_mark_stamp (rule->matches_go_to))
+ {
+ if (!_dbus_list_append (recipients_p, rule->matches_go_to))
+ goto nomem;
+ }
+#ifdef DBUS_ENABLE_VERBOSE_MODE
+ else
+ {
+ _dbus_verbose ("Connection already receiving this message, so not adding again\n");
+ }
+#endif /* DBUS_ENABLE_VERBOSE_MODE */
+ }
+
+ link = _dbus_list_get_next_link (&matchmaker->all_rules, link);
+ }
+
+ return TRUE;
+
+ nomem:
+ _dbus_list_clear (recipients_p);
+ return FALSE;
+}
+
+#ifdef DBUS_BUILD_TESTS
+#include "test.h"
+
+dbus_bool_t
+bus_signals_test (const DBusString *test_data_dir)
+{
+ BusMatchmaker *matchmaker;
+
+ matchmaker = bus_matchmaker_new ();
+ bus_matchmaker_ref (matchmaker);
+ bus_matchmaker_unref (matchmaker);
+ bus_matchmaker_unref (matchmaker);
+
+ return TRUE;
+}
+
+#endif /* DBUS_BUILD_TESTS */
+
diff --git a/bus/signals.h b/bus/signals.h
new file mode 100644
index 00000000..fab018ae
--- /dev/null
+++ b/bus/signals.h
@@ -0,0 +1,83 @@
+/* -*- mode: C; c-file-style: "gnu" -*- */
+/* signals.h Bus signal connection implementation
+ *
+ * Copyright (C) 2003 Red Hat, Inc.
+ *
+ * Licensed under the Academic Free License version 1.2
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef BUS_SIGNALS_H
+#define BUS_SIGNALS_H
+
+#include <dbus/dbus.h>
+#include <dbus/dbus-string.h>
+#include <dbus/dbus-sysdeps.h>
+#include "connection.h"
+
+typedef enum
+{
+ BUS_MATCH_MESSAGE_TYPE = 1 << 0,
+ BUS_MATCH_INTERFACE = 1 << 1,
+ BUS_MATCH_MEMBER = 1 << 2,
+ BUS_MATCH_SENDER = 1 << 3,
+ BUS_MATCH_DESTINATION = 1 << 4,
+ BUS_MATCH_PATH = 1 << 5
+} BusMatchFlags;
+
+BusMatchRule* bus_match_rule_new (DBusConnection *matches_go_to);
+void bus_match_rule_ref (BusMatchRule *rule);
+void bus_match_rule_unref (BusMatchRule *rule);
+
+dbus_bool_t bus_match_rule_set_message_type (BusMatchRule *rule,
+ int type);
+dbus_bool_t bus_match_rule_set_interface (BusMatchRule *rule,
+ const char *interface);
+dbus_bool_t bus_match_rule_set_member (BusMatchRule *rule,
+ const char *member);
+dbus_bool_t bus_match_rule_set_sender (BusMatchRule *rule,
+ const char *sender);
+dbus_bool_t bus_match_rule_set_destination (BusMatchRule *rule,
+ const char *destination);
+dbus_bool_t bus_match_rule_set_path (BusMatchRule *rule,
+ const char *path);
+
+BusMatchRule* bus_match_rule_parse (DBusConnection *matches_go_to,
+ const DBusString *rule_text,
+ DBusError *error);
+
+BusMatchmaker* bus_matchmaker_new (void);
+void bus_matchmaker_ref (BusMatchmaker *matchmaker);
+void bus_matchmaker_unref (BusMatchmaker *matchmaker);
+
+dbus_bool_t bus_matchmaker_add_rule (BusMatchmaker *matchmaker,
+ BusMatchRule *rule);
+dbus_bool_t bus_matchmaker_remove_rule_by_value (BusMatchmaker *matchmaker,
+ BusMatchRule *value,
+ DBusError *error);
+void bus_matchmaker_remove_rule (BusMatchmaker *matchmaker,
+ BusMatchRule *rule);
+void bus_matchmaker_disconnected (BusMatchmaker *matchmaker,
+ DBusConnection *disconnected);
+dbus_bool_t bus_matchmaker_get_recipients (BusMatchmaker *matchmaker,
+ BusConnections *connections,
+ DBusConnection *sender,
+ DBusConnection *addressed_recipient,
+ DBusMessage *message,
+ DBusList **recipients_p);
+
+#endif /* BUS_SIGNALS_H */
diff --git a/bus/system.conf.in b/bus/system.conf.in
index 96513a75..122ea1b6 100644
--- a/bus/system.conf.in
+++ b/bus/system.conf.in
@@ -42,8 +42,8 @@
<!-- Allow anyone to talk to the message bus -->
<!-- FIXME I think currently these allow rules are always implicit
even if they aren't in here -->
- <allow send_service="org.freedesktop.DBus"/>
- <allow receive_service="org.freedesktop.DBus"/>
+ <allow send_destination="org.freedesktop.DBus"/>
+ <allow receive_sender="org.freedesktop.DBus"/>
</policy>
<!-- Config files are placed here that among other things, punch
diff --git a/bus/test-main.c b/bus/test-main.c
index c433075f..3f280d4e 100644
--- a/bus/test-main.c
+++ b/bus/test-main.c
@@ -89,6 +89,12 @@ main (int argc, char **argv)
check_memleaks (argv[0]);
+ printf ("%s: Running signals test\n", argv[0]);
+ if (!bus_signals_test (&test_data_dir))
+ die ("signals");
+
+ check_memleaks (argv[0]);
+
printf ("%s: Running SHA1 connection test\n", argv[0]);
if (!bus_dispatch_sha1_test (&test_data_dir))
die ("sha1");
diff --git a/bus/test.h b/bus/test.h
index 36a69e6c..fc972fe3 100644
--- a/bus/test.h
+++ b/bus/test.h
@@ -36,6 +36,7 @@ dbus_bool_t bus_dispatch_test (const DBusString *test_data_d
dbus_bool_t bus_dispatch_sha1_test (const DBusString *test_data_dir);
dbus_bool_t bus_policy_test (const DBusString *test_data_dir);
dbus_bool_t bus_config_parser_test (const DBusString *test_data_dir);
+dbus_bool_t bus_signals_test (const DBusString *test_data_dir);
dbus_bool_t bus_setup_debug_client (DBusConnection *connection);
void bus_test_clients_foreach (BusConnectionForeachFunction function,
void *data);
diff --git a/dbus/dbus-errors.h b/dbus/dbus-errors.h
index ad4801c9..f229188a 100644
--- a/dbus/dbus-errors.h
+++ b/dbus/dbus-errors.h
@@ -53,13 +53,8 @@ struct DBusError
};
#define DBUS_ERROR_FAILED "org.freedesktop.DBus.Error.Failed"
-#define DBUS_ERROR_ACTIVATE_SERVICE_NOT_FOUND "org.freedesktop.DBus.Activate.ServiceNotFound"
-#define DBUS_ERROR_SPAWN_EXEC_FAILED "org.freedesktop.DBus.Error.Spawn.ExecFailed"
-#define DBUS_ERROR_SPAWN_FORK_FAILED "org.freedesktop.DBus.Error.Spawn.ForkFailed"
-#define DBUS_ERROR_SPAWN_CHILD_EXITED "org.freedesktop.DBus.Error.Spawn.ChildExited"
-#define DBUS_ERROR_SPAWN_CHILD_SIGNALED "org.freedesktop.DBus.Error.Spawn.ChildSignaled"
-#define DBUS_ERROR_SPAWN_FAILED "org.freedesktop.DBus.Error.Spawn.Failed"
#define DBUS_ERROR_NO_MEMORY "org.freedesktop.DBus.Error.NoMemory"
+#define DBUS_ERROR_ACTIVATE_SERVICE_NOT_FOUND "org.freedesktop.DBus.Error.ServiceNotFound"
#define DBUS_ERROR_SERVICE_DOES_NOT_EXIST "org.freedesktop.DBus.Error.ServiceDoesNotExist"
#define DBUS_ERROR_NO_REPLY "org.freedesktop.DBus.Error.NoReply"
#define DBUS_ERROR_IO_ERROR "org.freedesktop.DBus.Error.IOError"
@@ -77,6 +72,12 @@ struct DBusError
#define DBUS_ERROR_FILE_NOT_FOUND "org.freedesktop.DBus.Error.FileNotFound"
#define DBUS_ERROR_UNKNOWN_METHOD "org.freedesktop.DBus.Error.UnknownMethod"
#define DBUS_ERROR_TIMED_OUT "org.freedesktop.DBus.Error.TimedOut"
+#define DBUS_ERROR_MATCH_RULE_NOT_FOUND "org.freedesktop.DBus.Error.MatchRuleNotFound"
+#define DBUS_ERROR_SPAWN_EXEC_FAILED "org.freedesktop.DBus.Error.Spawn.ExecFailed"
+#define DBUS_ERROR_SPAWN_FORK_FAILED "org.freedesktop.DBus.Error.Spawn.ForkFailed"
+#define DBUS_ERROR_SPAWN_CHILD_EXITED "org.freedesktop.DBus.Error.Spawn.ChildExited"
+#define DBUS_ERROR_SPAWN_CHILD_SIGNALED "org.freedesktop.DBus.Error.Spawn.ChildSignaled"
+#define DBUS_ERROR_SPAWN_FAILED "org.freedesktop.DBus.Error.Spawn.Failed"
void dbus_error_init (DBusError *error);
void dbus_error_free (DBusError *error);
diff --git a/dbus/dbus-mainloop.c b/dbus/dbus-mainloop.c
index f3b68272..6da5318c 100644
--- a/dbus/dbus-mainloop.c
+++ b/dbus/dbus-mainloop.c
@@ -28,7 +28,7 @@
#include <dbus/dbus-list.h>
#include <dbus/dbus-sysdeps.h>
-#define MAINLOOP_SPEW 1
+#define MAINLOOP_SPEW 0
struct DBusLoop
{
diff --git a/dbus/dbus-protocol.h b/dbus/dbus-protocol.h
index 329609dc..a0cf54ef 100644
--- a/dbus/dbus-protocol.h
+++ b/dbus/dbus-protocol.h
@@ -84,7 +84,6 @@ extern "C" {
/* Services */
#define DBUS_SERVICE_ORG_FREEDESKTOP_DBUS "org.freedesktop.DBus"
-#define DBUS_SERVICE_ORG_FREEDESKTOP_BROADCAST "org.freedesktop.Broadcast"
/* Paths */
#define DBUS_PATH_ORG_FREEDESKTOP_DBUS "/org/freedesktop/DBus"
diff --git a/dbus/dbus-transport.c b/dbus/dbus-transport.c
index 59ec6ea1..4625cf25 100644
--- a/dbus/dbus-transport.c
+++ b/dbus/dbus-transport.c
@@ -813,7 +813,9 @@ _dbus_transport_queue_messages (DBusTransport *transport)
{
DBusDispatchStatus status;
+#if 0
_dbus_verbose ("_dbus_transport_queue_messages()\n");
+#endif
/* Queue any messages */
while ((status = _dbus_transport_get_dispatch_status (transport)) == DBUS_DISPATCH_DATA_REMAINS)
diff --git a/doc/TODO b/doc/TODO
index caa8856f..81862331 100644
--- a/doc/TODO
+++ b/doc/TODO
@@ -80,12 +80,15 @@
- the invalid messages in the test suite are all useless because
they are invalid for the wrong reasons due to protocol changes
- - Nuke the org.freedesktop.Broadcast service; instead,
- just broadcast messages of type signal
-
- I don't want to introduce DBusObject, but refcounting and object
data could still be factored out into an internal "base class"
perhaps.
+ - modify the auth protocol to also support other initial-handshake
+ type of information
+
+ - document the auth protocol as a set of states and transitions, and
+ then reimplement it in those terms
+
- Header fields names are required to be aligned on a 4 byte boundary
at the moment. No alignment should be neccessary.
diff --git a/glib/dbus-gproxy.c b/glib/dbus-gproxy.c
index 59d86a31..b77e7d30 100644
--- a/glib/dbus-gproxy.c
+++ b/glib/dbus-gproxy.c
@@ -188,8 +188,8 @@ dbus_gproxy_begin_call (DBusGProxy *proxy,
LOCK_PROXY (proxy);
message = dbus_message_new_method_call (proxy->service,
- proxy->interface,
proxy->path,
+ proxy->interface,
method);
if (message == NULL)
goto oom;
diff --git a/test/data/valid-config-files/many-rules.conf b/test/data/valid-config-files/many-rules.conf
index 57ea5ec9..f68430e5 100644
--- a/test/data/valid-config-files/many-rules.conf
+++ b/test/data/valid-config-files/many-rules.conf
@@ -13,16 +13,16 @@
<deny receive_interface="org.freedesktop.System" receive_member="Reboot"/>
<deny send_path="/foo/bar/SystemObjectThing" send_member="Reboot"/>
<deny own="org.freedesktop.System"/>
- <deny send_service="org.freedesktop.System"/>
- <deny receive_service="org.freedesktop.System"/>
+ <deny send_destination="org.freedesktop.System"/>
+ <deny receive_sender="org.freedesktop.System"/>
<deny user="root"/>
<deny group="root"/>
<allow send_type="error"/>
<allow send_type="method_call"/>
<allow send_type="method_return"/>
<allow send_type="signal"/>
- <deny send_service="org.freedesktop.Bar" send_interface="org.freedesktop.Foo"/>
- <deny send_service="org.freedesktop.Bar" send_interface="org.freedesktop.Foo" send_type="method_call"/>
+ <deny send_destination="org.freedesktop.Bar" send_interface="org.freedesktop.Foo"/>
+ <deny send_destination="org.freedesktop.Bar" send_interface="org.freedesktop.Foo" send_type="method_call"/>
</policy>
<policy context="mandatory">
@@ -31,16 +31,16 @@
<deny receive_interface="org.freedesktop.System" receive_member="Reboot"/>
<deny send_path="/foo/bar/SystemObjectThing" send_member="Reboot"/>
<deny own="org.freedesktop.System"/>
- <deny send_service="org.freedesktop.System"/>
- <deny receive_service="org.freedesktop.System"/>
+ <deny send_destination="org.freedesktop.System"/>
+ <deny receive_sender="org.freedesktop.System"/>
<deny user="root"/>
<deny group="root"/>
<allow send_type="error"/>
<allow send_type="method_call"/>
<allow send_type="method_return"/>
<allow send_type="signal"/>
- <deny send_service="org.freedesktop.Bar" send_interface="org.freedesktop.Foo"/>
- <deny send_service="org.freedesktop.Bar" send_interface="org.freedesktop.Foo" send_type="method_call"/>
+ <deny send_destination="org.freedesktop.Bar" send_interface="org.freedesktop.Foo"/>
+ <deny send_destination="org.freedesktop.Bar" send_interface="org.freedesktop.Foo" send_type="method_call"/>
</policy>
<limit name="max_incoming_bytes">5000</limit>
diff --git a/test/data/valid-config-files/system.d/test.conf b/test/data/valid-config-files/system.d/test.conf
index 10a79847..5b60a1fc 100644
--- a/test/data/valid-config-files/system.d/test.conf
+++ b/test/data/valid-config-files/system.d/test.conf
@@ -15,6 +15,6 @@
<!-- Allow any connection to receive the message, but
only if the message is sent by the owner of FooService -->
<policy context="default">
- <allow receive_interface="org.foo.FooBroadcastInterface" receive_service="org.foo.FooService"/>
+ <allow receive_interface="org.foo.FooBroadcastInterface" receive_sender="org.foo.FooService"/>
</policy>
</busconfig>
diff --git a/tools/dbus-send.c b/tools/dbus-send.c
index 67abe066..06a87adb 100644
--- a/tools/dbus-send.c
+++ b/tools/dbus-send.c
@@ -44,7 +44,7 @@ main (int argc, char *argv[])
DBusMessageIter iter;
int i;
DBusBusType type = DBUS_BUS_SESSION;
- const char *dest = DBUS_SERVICE_ORG_FREEDESKTOP_BROADCAST;
+ const char *dest = NULL;
const char *name = NULL;
const char *path = NULL;
int message_type = DBUS_MESSAGE_TYPE_SIGNAL;
generated by cgit (git 2.34.1) at 2025-10-31 07:25:33 +0000