* Copyright (C) 2003, 2004 Red Hat, Inc.
*
* Licensed under the Academic Free License version 2.1
- *
+ *
* 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
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
+#include <config.h>
#include "bus.h"
#include "activation.h"
#include "connection.h"
#include <dbus/dbus-hash.h>
#include <dbus/dbus-credentials.h>
#include <dbus/dbus-internals.h>
+#ifdef DBUS_CYGWIN
+#include <signal.h>
+#endif
struct BusContext
{
unsigned int syslog : 1;
unsigned int keep_umask : 1;
unsigned int allow_anonymous : 1;
+ unsigned int systemd_activation : 1;
};
static dbus_int32_t server_data_slot = -1;
{
BusContext *context;
BusServerData *bd;
-
+
if (!dbus_server_allocate_data_slot (&server_data_slot))
return NULL;
* if the code in activation.c for the babysitter
* watch handler is fixed.
*/
-
+
return dbus_watch_handle (watch, condition);
}
{
DBusServer *server = data;
BusContext *context;
-
+
context = server_get_context (server);
-
+
return _dbus_loop_add_watch (context->loop,
watch, server_watch_callback, server,
NULL);
{
DBusServer *server = data;
BusContext *context;
-
+
context = server_get_context (server);
-
+
_dbus_loop_remove_watch (context->loop,
watch, server_watch_callback, server);
}
{
DBusServer *server = data;
BusContext *context;
-
+
context = server_get_context (server);
return _dbus_loop_add_timeout (context->loop,
{
DBusServer *server = data;
BusContext *context;
-
+
context = server_get_context (server);
-
+
_dbus_loop_remove_timeout (context->loop,
timeout, server_timeout_callback, server);
}
void *data)
{
BusContext *context = data;
-
+
if (!bus_connections_setup_connection (context->connections, new_connection))
{
_dbus_verbose ("No memory to setup new connection\n");
dbus_connection_set_max_message_unix_fds (new_connection,
context->limits.max_message_unix_fds);
-
+
dbus_connection_set_allow_anonymous (new_connection,
context->allow_anonymous);
static void
free_server_data (void *data)
{
- BusServerData *bd = data;
-
+ BusServerData *bd = data;
+
dbus_free (bd);
}
}
bd->context = context;
-
+
if (!dbus_server_set_auth_mechanisms (server, (const char**) auth_mechanisms))
{
BUS_SET_OOM (error);
return FALSE;
}
-
+
dbus_server_set_new_connection_function (server,
new_connection_callback,
context, NULL);
-
+
if (!dbus_server_set_watch_functions (server,
add_server_watch,
remove_server_watch,
BUS_SET_OOM (error);
return FALSE;
}
-
+
return TRUE;
}
* when config files are reloaded.
*/
static dbus_bool_t
-process_config_first_time_only (BusContext *context,
- BusConfigParser *parser,
- DBusError *error)
+process_config_first_time_only (BusContext *context,
+ BusConfigParser *parser,
+ const DBusString *address,
+ dbus_bool_t systemd_activation,
+ DBusError *error)
{
DBusString log_prefix;
DBusList *link;
retval = FALSE;
auth_mechanisms = NULL;
+ context->systemd_activation = systemd_activation;
+
/* Check for an existing pid file. Of course this is a race;
* we'd have to use fcntl() locks on the pid file to
* avoid that. But we want to check for the pid file
{
DBusString u;
DBusStat stbuf;
-
+
_dbus_string_init_const (&u, pidfile);
if (_dbus_stat (&u, &stbuf, NULL))
{
+#ifdef DBUS_CYGWIN
+ DBusString p;
+ long /* int */ pid;
+
+ _dbus_string_init (&p);
+ _dbus_file_get_contents(&p, &u, NULL);
+ _dbus_string_parse_int(&p, 0, &pid, NULL);
+ _dbus_string_free(&p);
+
+ if ((kill((int)pid, 0))) {
+ dbus_set_error(NULL, DBUS_ERROR_FILE_EXISTS,
+ "pid %ld not running, removing stale pid file\n",
+ pid);
+ _dbus_delete_file(&u, NULL);
+ } else {
+#endif
dbus_set_error (error, DBUS_ERROR_FAILED,
"The pid file \"%s\" exists, if the message bus is not running, remove this file",
pidfile);
goto failed;
+#ifdef DBUS_CYGWIN
+ }
+#endif
}
}
if (!credentials)
goto oom;
if (!_dbus_string_append (&log_prefix, "[session "))
- goto oom;
+ {
+ _dbus_credentials_unref (credentials);
+ goto oom;
+ }
if (!_dbus_credentials_to_string_append (credentials, &log_prefix))
- goto oom;
+ {
+ _dbus_credentials_unref (credentials);
+ goto oom;
+ }
if (!_dbus_string_append (&log_prefix, "] "))
- goto oom;
+ {
+ _dbus_credentials_unref (credentials);
+ goto oom;
+ }
_dbus_credentials_unref (credentials);
}
if (!_dbus_string_steal_data (&log_prefix, &context->log_prefix))
}
/* Listen on our addresses */
-
- addresses = bus_config_parser_get_addresses (parser);
-
- link = _dbus_list_get_first_link (addresses);
- while (link != NULL)
+
+ if (address)
{
DBusServer *server;
-
- server = dbus_server_listen (link->data, error);
+
+ server = dbus_server_listen (_dbus_string_get_const_data(address), error);
if (server == NULL)
- {
- _DBUS_ASSERT_ERROR_IS_SET (error);
- goto failed;
- }
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ goto failed;
+ }
else if (!setup_server (context, server, auth_mechanisms, error))
- {
- _DBUS_ASSERT_ERROR_IS_SET (error);
- goto failed;
- }
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ goto failed;
+ }
if (!_dbus_list_append (&context->servers, server))
goto oom;
+ }
+ else
+ {
+ addresses = bus_config_parser_get_addresses (parser);
+
+ link = _dbus_list_get_first_link (addresses);
+ while (link != NULL)
+ {
+ DBusServer *server;
+
+ server = dbus_server_listen (link->data, error);
+ if (server == NULL)
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ goto failed;
+ }
+ else if (!setup_server (context, server, auth_mechanisms, error))
+ {
+ _DBUS_ASSERT_ERROR_IS_SET (error);
+ goto failed;
+ }
+
+ if (!_dbus_list_append (&context->servers, server))
+ goto oom;
- link = _dbus_list_get_next_link (addresses, link);
+ link = _dbus_list_get_next_link (addresses, link);
+ }
}
context->fork = bus_config_parser_get_fork (parser);
char *addr;
const char *servicehelper;
char *s;
-
+
dbus_bool_t retval;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
failed:
_dbus_string_free (&full_address);
-
+
if (addr)
dbus_free (addr);
*result = NULL;
- link = _dbus_list_get_first_link (a);
for (link = _dbus_list_get_first_link (a); link; link = _dbus_list_get_next_link (a, link))
{
if (!_dbus_list_append (result, link->data))
return FALSE;
}
+static void
+raise_file_descriptor_limit (BusContext *context)
+{
+
+ /* I just picked this out of thin air; we need some extra
+ * descriptors for things like any internal pipes we create,
+ * inotify, connections to SELinux, etc.
+ */
+ unsigned int arbitrary_extra_fds = 32;
+ unsigned int limit;
+
+ limit = context->limits.max_completed_connections +
+ context->limits.max_incomplete_connections
+ + arbitrary_extra_fds;
+
+ _dbus_request_file_descriptor_limit (limit);
+}
+
static dbus_bool_t
process_config_postinit (BusContext *context,
BusConfigParser *parser,
DBusHashTable *service_context_table;
DBusList *watched_dirs = NULL;
+ raise_file_descriptor_limit (context);
+
service_context_table = bus_config_parser_steal_service_context_table (parser);
if (!bus_registry_set_service_context_table (context->registry,
service_context_table))
ForceForkSetting force_fork,
DBusPipe *print_addr_pipe,
DBusPipe *print_pid_pipe,
+ const DBusString *address,
+ dbus_bool_t systemd_activation,
DBusError *error)
{
DBusString log_prefix;
_DBUS_ASSERT_ERROR_IS_SET (error);
goto failed;
}
-
- if (!process_config_first_time_only (context, parser, error))
+
+ if (!process_config_first_time_only (context, parser, address, systemd_activation, error))
{
_DBUS_ASSERT_ERROR_IS_SET (error);
goto failed;
_DBUS_ASSERT_ERROR_IS_SET (error);
goto failed;
}
-
+
/* we need another ref of the server data slot for the context
* to own
*/
DBusString addr;
const char *a = bus_context_get_address (context);
int bytes;
-
+
_dbus_assert (a != NULL);
if (!_dbus_string_init (&addr))
{
BUS_SET_OOM (error);
goto failed;
}
-
+
if (!_dbus_string_append (&addr, a) ||
!_dbus_string_append (&addr, "\n"))
{
if (!_dbus_pipe_is_stdout_or_stderr (print_addr_pipe))
_dbus_pipe_close (print_addr_pipe, NULL);
-
+
_dbus_string_free (&addr);
}
-
+
context->connections = bus_connections_new (context);
if (context->connections == NULL)
{
if ((force_fork != FORK_NEVER && context->fork) || force_fork == FORK_ALWAYS)
{
_dbus_verbose ("Forking and becoming daemon\n");
-
- if (!_dbus_become_daemon (context->pidfile ? &u : NULL,
+
+ if (!_dbus_become_daemon (context->pidfile ? &u : NULL,
print_pid_pipe,
error,
context->keep_umask))
else
{
_dbus_verbose ("Fork not requested\n");
-
+
/* Need to write PID file and to PID pipe for ourselves,
* not for the child process. This is a no-op if the pidfile
* is NULL and print_pid_pipe is NULL.
bus_config_parser_unref (parser);
parser = NULL;
}
-
+
/* Here we change our credentials if required,
* as soon as we've set up our sockets and pidfile
*/
}
dbus_server_free_data_slot (&server_data_slot);
-
+
return context;
-
- failed:
+
+ failed:
if (parser != NULL)
bus_config_parser_unref (parser);
if (context != NULL)
if (server_data_slot >= 0)
dbus_server_free_data_slot (&server_data_slot);
-
+
return NULL;
}
_DBUS_ASSERT_ERROR_IS_SET (error);
goto failed;
}
-
+
if (!process_config_every_time (context, parser, TRUE, error))
{
_DBUS_ASSERT_ERROR_IS_SET (error);
if (server == NULL ||
!dbus_server_get_is_connected (server))
return;
-
+
if (!dbus_server_set_watch_functions (server,
NULL, NULL, NULL,
context,
NULL))
_dbus_assert_not_reached ("setting watch functions to NULL failed");
-
+
if (!dbus_server_set_timeout_functions (server,
NULL, NULL, NULL,
context,
NULL))
_dbus_assert_not_reached ("setting timeout functions to NULL failed");
-
+
dbus_server_disconnect (server);
}
if (context->refcount == 0)
{
DBusList *link;
-
+
_dbus_verbose ("Finalizing bus context %p\n", context);
-
+
bus_context_shutdown (context);
if (context->connections)
bus_connections_unref (context->connections);
context->connections = NULL;
}
-
+
if (context->registry)
{
bus_registry_unref (context->registry);
context->registry = NULL;
}
-
+
if (context->activation)
{
bus_activation_unref (context->activation);
while (link != NULL)
{
dbus_server_unref (link->data);
-
+
link = _dbus_list_get_next_link (&context->servers, link);
}
_dbus_list_clear (&context->servers);
bus_policy_unref (context->policy);
context->policy = NULL;
}
-
+
if (context->loop)
{
_dbus_loop_unref (context->loop);
*/
_dbus_delete_file (&u, NULL);
- dbus_free (context->pidfile);
+ dbus_free (context->pidfile);
}
dbus_free (context);
return context->servicehelper;
}
+dbus_bool_t
+bus_context_get_systemd_activation (BusContext *context)
+{
+ return context->systemd_activation;
+}
+
BusRegistry*
bus_context_get_registry (BusContext *context)
{
int
bus_context_get_activation_timeout (BusContext *context)
{
-
+
return context->limits.activation_timeout;
}
}
void
+bus_context_log (BusContext *context, DBusSystemLogSeverity severity, const char *msg, ...) _DBUS_GNUC_PRINTF (3, 4);
+
+void
bus_context_log (BusContext *context, DBusSystemLogSeverity severity, const char *msg, ...)
{
va_list args;
if (!_dbus_string_append_printf_valist (&full_msg, msg, args))
goto oom_out;
- _dbus_system_log (severity, "%s", full_msg);
+ _dbus_system_log (severity, "%s", _dbus_string_get_const_data (&full_msg));
oom_out:
_dbus_string_free (&full_msg);
}
const char *sender_name;
const char *sender_loginfo;
const char *proposed_recipient_loginfo;
-
+
type = dbus_message_get_type (message);
dest = dbus_message_get_destination (message);
-
+
/* dispatch.c was supposed to ensure these invariants */
_dbus_assert (dest != NULL ||
type == DBUS_MESSAGE_TYPE_SIGNAL ||
sender_name = NULL;
sender_loginfo = "(bus)";
}
-
+
if (proposed_recipient != NULL)
proposed_recipient_loginfo = bus_connection_get_loginfo (proposed_recipient);
else
proposed_recipient_loginfo = "bus";
-
+
switch (type)
{
case DBUS_MESSAGE_TYPE_METHOD_CALL:
case DBUS_MESSAGE_TYPE_METHOD_RETURN:
case DBUS_MESSAGE_TYPE_ERROR:
break;
-
+
default:
_dbus_verbose ("security check disallowing message of unknown type %d\n",
type);
dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
"Message bus will not accept messages of unknown type\n");
-
+
return FALSE;
}
requested_reply = FALSE;
-
+
if (sender != NULL)
{
/* First verify the SELinux access controls. If allowed then
return FALSE;
}
-
+
if (bus_connection_is_active (sender))
{
sender_policy = bus_connection_get_policy (sender);
_dbus_assert (sender_policy != NULL);
-
+
/* Fill in requested_reply variable with TRUE if this is a
* reply and the reply was pending.
*/
if (proposed_recipient != NULL /* not to the bus driver */ &&
addressed_recipient == proposed_recipient /* not eavesdropping */)
{
- DBusError error2;
-
+ DBusError error2;
+
dbus_error_init (&error2);
requested_reply = bus_connections_check_reply (bus_connection_get_connections (sender),
transaction,
dbus_set_error (error, DBUS_ERROR_ACCESS_DENIED,
"Client tried to send a message other than %s without being registered",
"Hello");
-
+
return FALSE;
}
}
_dbus_assert ((sender != NULL && sender_policy != NULL) ||
(sender == NULL && sender_policy == NULL));
-
+
if (proposed_recipient != NULL)
{
/* only the bus driver can send to an inactive recipient (as it
}
else
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));
-
+
log = FALSE;
if (sender_policy &&
!bus_client_policy_check_can_send (sender_policy,
dbus_message_get_member (message) : "(unset)",
dbus_message_get_error_name (message) ?
dbus_message_get_error_name (message) : "(unset)",
- requested_reply,
+ requested_reply,
dest ? dest : DBUS_SERVICE_DBUS,
proposed_recipient_loginfo);
dbus_set_error (error, DBUS_ERROR_LIMITS_EXCEEDED,
"The destination service \"%s\" has a full message queue",
dest ? dest : (proposed_recipient ?
- bus_connection_get_name (proposed_recipient) :
+ bus_connection_get_name (proposed_recipient) :
DBUS_SERVICE_DBUS));
_dbus_verbose ("security policy disallowing message due to full message queue\n");
return FALSE;
* connection). Only the addressed recipient may reply.
*/
if (type == DBUS_MESSAGE_TYPE_METHOD_CALL &&
- sender &&
+ sender &&
addressed_recipient &&
addressed_recipient == proposed_recipient && /* not eavesdropping */
!bus_connections_expect_reply (bus_connection_get_connections (sender),
_dbus_verbose ("Failed to record reply expectation or problem with the message expecting a reply\n");
return FALSE;
}
-
+
_dbus_verbose ("security policy allowing message\n");
return TRUE;
}
projects / platform / upstream / dbus.git / blobdiff