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00025 #include <config.h>
00026 #include "dbus-internals.h"
00027 #include "dbus-server-debug-pipe.h"
00028 #include "dbus-transport-socket.h"
00029 #include "dbus-connection-internal.h"
00030 #include "dbus-hash.h"
00031 #include "dbus-string.h"
00032 #include "dbus-protocol.h"
00033
00034 #ifdef DBUS_BUILD_TESTS
00035
00050 typedef struct DBusServerDebugPipe DBusServerDebugPipe;
00051
00056 struct DBusServerDebugPipe
00057 {
00058 DBusServer base;
00060 char *name;
00062 dbus_bool_t disconnected;
00063 };
00064
00065
00066 static DBusHashTable *server_pipe_hash;
00067 static int server_pipe_hash_refcount = 0;
00068
00069 static dbus_bool_t
00070 pipe_hash_ref (void)
00071 {
00072 if (!server_pipe_hash)
00073 {
00074 _dbus_assert (server_pipe_hash_refcount == 0);
00075
00076 server_pipe_hash = _dbus_hash_table_new (DBUS_HASH_STRING, NULL, NULL);
00077
00078 if (!server_pipe_hash)
00079 return FALSE;
00080 }
00081
00082 server_pipe_hash_refcount = 1;
00083
00084 return TRUE;
00085 }
00086
00087 static void
00088 pipe_hash_unref (void)
00089 {
00090 _dbus_assert (server_pipe_hash != NULL);
00091 _dbus_assert (server_pipe_hash_refcount > 0);
00092
00093 server_pipe_hash_refcount -= 1;
00094 if (server_pipe_hash_refcount == 0)
00095 {
00096 _dbus_hash_table_unref (server_pipe_hash);
00097 server_pipe_hash = NULL;
00098 }
00099 }
00100
00101 static void
00102 debug_finalize (DBusServer *server)
00103 {
00104 DBusServerDebugPipe *debug_server = (DBusServerDebugPipe*) server;
00105
00106 pipe_hash_unref ();
00107
00108 _dbus_server_finalize_base (server);
00109
00110 dbus_free (debug_server->name);
00111 dbus_free (server);
00112 }
00113
00114 static void
00115 debug_disconnect (DBusServer *server)
00116 {
00117 ((DBusServerDebugPipe*)server)->disconnected = TRUE;
00118 }
00119
00120 static DBusServerVTable debug_vtable = {
00121 debug_finalize,
00122 debug_disconnect
00123 };
00124
00132 DBusServer*
00133 _dbus_server_debug_pipe_new (const char *server_name,
00134 DBusError *error)
00135 {
00136 DBusServerDebugPipe *debug_server;
00137 DBusString address;
00138 DBusString name_str;
00139
00140 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00141
00142 if (!pipe_hash_ref ())
00143 return NULL;
00144
00145 if (_dbus_hash_table_lookup_string (server_pipe_hash, server_name) != NULL)
00146 {
00147 dbus_set_error (error, DBUS_ERROR_ADDRESS_IN_USE, NULL);
00148 pipe_hash_unref ();
00149 return NULL;
00150 }
00151
00152 debug_server = dbus_new0 (DBusServerDebugPipe, 1);
00153 if (debug_server == NULL)
00154 goto nomem_0;
00155
00156 if (!_dbus_string_init (&address))
00157 goto nomem_1;
00158
00159 _dbus_string_init_const (&name_str, server_name);
00160 if (!_dbus_string_append (&address, "debug-pipe:name=") ||
00161 !_dbus_address_append_escaped (&address, &name_str))
00162 goto nomem_2;
00163
00164 debug_server->name = _dbus_strdup (server_name);
00165 if (debug_server->name == NULL)
00166 goto nomem_2;
00167
00168 if (!_dbus_server_init_base (&debug_server->base,
00169 &debug_vtable, &address))
00170 goto nomem_3;
00171
00172 if (!_dbus_hash_table_insert_string (server_pipe_hash,
00173 debug_server->name,
00174 debug_server))
00175 goto nomem_4;
00176
00177 _dbus_string_free (&address);
00178
00179
00180
00181 _dbus_server_trace_ref (&debug_server->base, 0, 1, "debug_pipe_new");
00182 return (DBusServer *)debug_server;
00183
00184 nomem_4:
00185 _dbus_server_finalize_base (&debug_server->base);
00186 nomem_3:
00187 dbus_free (debug_server->name);
00188 nomem_2:
00189 _dbus_string_free (&address);
00190 nomem_1:
00191 dbus_free (debug_server);
00192 nomem_0:
00193 pipe_hash_unref ();
00194 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00195 return NULL;
00196 }
00197
00207 DBusTransport*
00208 _dbus_transport_debug_pipe_new (const char *server_name,
00209 DBusError *error)
00210 {
00211 DBusTransport *client_transport;
00212 DBusTransport *server_transport;
00213 DBusConnection *connection;
00214 int client_fd, server_fd;
00215 DBusServer *server;
00216 DBusString address;
00217
00218 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00219
00220 if (server_pipe_hash == NULL)
00221 {
00222 dbus_set_error (error, DBUS_ERROR_NO_SERVER, NULL);
00223 return NULL;
00224 }
00225
00226 server = _dbus_hash_table_lookup_string (server_pipe_hash,
00227 server_name);
00228 if (server == NULL ||
00229 ((DBusServerDebugPipe*)server)->disconnected)
00230 {
00231 dbus_set_error (error, DBUS_ERROR_NO_SERVER, NULL);
00232 return NULL;
00233 }
00234
00235 if (!_dbus_string_init (&address))
00236 {
00237 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00238 return NULL;
00239 }
00240
00241 if (!_dbus_string_append (&address, "debug-pipe:name=") ||
00242 !_dbus_string_append (&address, server_name))
00243 {
00244 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00245 _dbus_string_free (&address);
00246 return NULL;
00247 }
00248
00249 if (!_dbus_full_duplex_pipe (&client_fd, &server_fd, FALSE,
00250 NULL))
00251 {
00252 _dbus_verbose ("failed to create full duplex pipe\n");
00253 dbus_set_error (error, DBUS_ERROR_FAILED, "Could not create full-duplex pipe");
00254 _dbus_string_free (&address);
00255 return NULL;
00256 }
00257
00258 client_transport = _dbus_transport_new_for_socket (client_fd,
00259 NULL, &address);
00260 if (client_transport == NULL)
00261 {
00262 _dbus_close_socket (client_fd, NULL);
00263 _dbus_close_socket (server_fd, NULL);
00264 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00265 _dbus_string_free (&address);
00266 return NULL;
00267 }
00268
00269 _dbus_string_free (&address);
00270
00271 client_fd = -1;
00272
00273 server_transport = _dbus_transport_new_for_socket (server_fd,
00274 &server->guid_hex, NULL);
00275 if (server_transport == NULL)
00276 {
00277 _dbus_transport_unref (client_transport);
00278 _dbus_close_socket (server_fd, NULL);
00279 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00280 return NULL;
00281 }
00282
00283 server_fd = -1;
00284
00285 if (!_dbus_transport_set_auth_mechanisms (server_transport,
00286 (const char**) server->auth_mechanisms))
00287 {
00288 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00289 _dbus_transport_unref (server_transport);
00290 _dbus_transport_unref (client_transport);
00291 return NULL;
00292 }
00293
00294 connection = _dbus_connection_new_for_transport (server_transport);
00295 _dbus_transport_unref (server_transport);
00296 server_transport = NULL;
00297
00298 if (connection == NULL)
00299 {
00300 _dbus_transport_unref (client_transport);
00301 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
00302 return NULL;
00303 }
00304
00305
00306
00307
00308 if (server->new_connection_function)
00309 {
00310 dbus_server_ref (server);
00311 (* server->new_connection_function) (server, connection,
00312 server->new_connection_data);
00313 dbus_server_unref (server);
00314 }
00315
00316
00317
00318
00319 _dbus_connection_close_if_only_one_ref (connection);
00320 dbus_connection_unref (connection);
00321
00322 return client_transport;
00323 }
00324
00336 DBusServerListenResult
00337 _dbus_server_listen_debug_pipe (DBusAddressEntry *entry,
00338 DBusServer **server_p,
00339 DBusError *error)
00340 {
00341 const char *method;
00342
00343 *server_p = NULL;
00344
00345 method = dbus_address_entry_get_method (entry);
00346
00347 if (strcmp (method, "debug-pipe") == 0)
00348 {
00349 const char *name = dbus_address_entry_get_value (entry, "name");
00350
00351 if (name == NULL)
00352 {
00353 _dbus_set_bad_address(error, "debug-pipe", "name",
00354 NULL);
00355 return DBUS_SERVER_LISTEN_BAD_ADDRESS;
00356 }
00357
00358 *server_p = _dbus_server_debug_pipe_new (name, error);
00359
00360 if (*server_p)
00361 {
00362 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
00363 return DBUS_SERVER_LISTEN_OK;
00364 }
00365 else
00366 {
00367 _DBUS_ASSERT_ERROR_IS_SET(error);
00368 return DBUS_SERVER_LISTEN_DID_NOT_CONNECT;
00369 }
00370 }
00371 else
00372 {
00373 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
00374 return DBUS_SERVER_LISTEN_NOT_HANDLED;
00375 }
00376 }
00377
00386 DBusTransportOpenResult
00387 _dbus_transport_open_debug_pipe (DBusAddressEntry *entry,
00388 DBusTransport **transport_p,
00389 DBusError *error)
00390 {
00391 const char *method;
00392
00393 method = dbus_address_entry_get_method (entry);
00394 _dbus_assert (method != NULL);
00395
00396 if (strcmp (method, "debug-pipe") == 0)
00397 {
00398 const char *name = dbus_address_entry_get_value (entry, "name");
00399
00400 if (name == NULL)
00401 {
00402 _dbus_set_bad_address (error, "debug-pipe", "name",
00403 NULL);
00404 return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
00405 }
00406
00407 *transport_p = _dbus_transport_debug_pipe_new (name, error);
00408
00409 if (*transport_p == NULL)
00410 {
00411 _DBUS_ASSERT_ERROR_IS_SET (error);
00412 return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
00413 }
00414 else
00415 {
00416 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00417 return DBUS_TRANSPORT_OPEN_OK;
00418 }
00419 }
00420 else
00421 {
00422 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00423 return DBUS_TRANSPORT_OPEN_NOT_HANDLED;
00424 }
00425 }
00426
00427
00430 #endif
00431