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#include "dbus-internals.h"
00025
#include "dbus-server-unix.h"
00026
#include "dbus-transport-unix.h"
00027
#include "dbus-connection-internal.h"
00028
#include "dbus-string.h"
00029
#include <sys/types.h>
00030
#include <unistd.h>
00031
00043 typedef struct DBusServerUnix DBusServerUnix;
00044
00049 struct DBusServerUnix
00050 {
00051 DBusServer base;
00052 int fd;
00053 DBusWatch *
watch;
00054 char *
socket_name;
00055 };
00056
00057
static void
00058 unix_finalize (
DBusServer *server)
00059 {
00060
DBusServerUnix *unix_server = (
DBusServerUnix*) server;
00061
00062
dbus_free (unix_server->
socket_name);
00063
00064
_dbus_server_finalize_base (server);
00065
00066
dbus_free (server);
00067 }
00068
00074
00075
static dbus_bool_t
00076 handle_new_client_fd (
DBusServer *server,
00077
int client_fd)
00078 {
00079
DBusConnection *connection;
00080
DBusTransport *transport;
00081
00082 _dbus_verbose (
"Creating new client connection with fd %d\n", client_fd);
00083
00084
if (!
_dbus_set_fd_nonblocking (client_fd, NULL))
00085
return TRUE;
00086
00087 transport =
_dbus_transport_new_for_fd (client_fd, TRUE, NULL);
00088
if (transport ==
NULL)
00089 {
00090 close (client_fd);
00091
return FALSE;
00092 }
00093
00094
if (!
_dbus_transport_set_auth_mechanisms (transport,
00095 (
const char **) server->
auth_mechanisms))
00096 {
00097
_dbus_transport_unref (transport);
00098
return FALSE;
00099 }
00100
00101
00102
00103
00104
00105 connection =
_dbus_connection_new_for_transport (transport);
00106
_dbus_transport_unref (transport);
00107
00108
if (connection ==
NULL)
00109
return FALSE;
00110
00111
00112
00113
00114
if (server->
new_connection_function)
00115 {
00116
dbus_server_ref (server);
00117
00118 (* server->
new_connection_function) (server, connection,
00119 server->
new_connection_data);
00120
dbus_server_unref (server);
00121 }
00122
00123
00124
dbus_connection_unref (connection);
00125
00126
return TRUE;
00127 }
00128
00129
static dbus_bool_t
00130 unix_handle_watch (
DBusWatch *watch,
00131
unsigned int flags,
00132
void *data)
00133 {
00134
DBusServer *server = data;
00135
DBusServerUnix *unix_server = data;
00136
00137
_dbus_assert (watch == unix_server->
watch);
00138
00139 _dbus_verbose (
"Handling client connection, flags 0x%x\n", flags);
00140
00141
if (flags & DBUS_WATCH_READABLE)
00142 {
00143
int client_fd;
00144
int listen_fd;
00145
00146 listen_fd =
dbus_watch_get_fd (watch);
00147
00148 client_fd =
_dbus_accept (listen_fd);
00149
00150
if (client_fd < 0)
00151 {
00152
00153
00154
if (errno == EAGAIN || errno == EWOULDBLOCK)
00155 _dbus_verbose (
"No client available to accept after all\n");
00156
else
00157 _dbus_verbose (
"Failed to accept a client connection: %s\n",
00158 _dbus_strerror (errno));
00159 }
00160
else
00161 {
00162
_dbus_fd_set_close_on_exec (client_fd);
00163
00164
if (!handle_new_client_fd (server, client_fd))
00165 _dbus_verbose (
"Rejected client connection due to lack of memory\n");
00166 }
00167 }
00168
00169
if (flags & DBUS_WATCH_ERROR)
00170 _dbus_verbose (
"Error on server listening socket\n");
00171
00172
if (flags & DBUS_WATCH_HANGUP)
00173 _dbus_verbose (
"Hangup on server listening socket\n");
00174
00175
return TRUE;
00176 }
00177
00178
static void
00179 unix_disconnect (
DBusServer *server)
00180 {
00181
DBusServerUnix *unix_server = (
DBusServerUnix*) server;
00182
00183
if (unix_server->
watch)
00184 {
00185
_dbus_server_remove_watch (server,
00186 unix_server->
watch);
00187
_dbus_watch_unref (unix_server->
watch);
00188 unix_server->
watch =
NULL;
00189 }
00190
00191 close (unix_server->
fd);
00192 unix_server->
fd = -1;
00193
00194
if (unix_server->
socket_name !=
NULL)
00195 {
00196
DBusString tmp;
00197
_dbus_string_init_const (&tmp, unix_server->
socket_name);
00198
_dbus_delete_file (&tmp, NULL);
00199 }
00200 }
00201
00202
static DBusServerVTable unix_vtable = {
00203 unix_finalize,
00204 unix_disconnect
00205 };
00206
00220
DBusServer*
00221 _dbus_server_new_for_fd (
int fd,
00222
const DBusString *address)
00223 {
00224
DBusServerUnix *unix_server;
00225
DBusWatch *watch;
00226
00227 unix_server =
dbus_new0 (
DBusServerUnix, 1);
00228
if (unix_server ==
NULL)
00229
return NULL;
00230
00231 watch =
_dbus_watch_new (fd,
00232 DBUS_WATCH_READABLE,
00233
TRUE,
00234 unix_handle_watch, unix_server,
00235
NULL);
00236
if (watch ==
NULL)
00237 {
00238
dbus_free (unix_server);
00239
return NULL;
00240 }
00241
00242
if (!
_dbus_server_init_base (&unix_server->
base,
00243 &unix_vtable, address))
00244 {
00245
_dbus_watch_unref (watch);
00246
dbus_free (unix_server);
00247
return NULL;
00248 }
00249
00250
if (!
_dbus_server_add_watch (&unix_server->
base,
00251 watch))
00252 {
00253
_dbus_server_finalize_base (&unix_server->
base);
00254
_dbus_watch_unref (watch);
00255
dbus_free (unix_server);
00256
return NULL;
00257 }
00258
00259 unix_server->
fd = fd;
00260 unix_server->
watch = watch;
00261
00262
return (
DBusServer*) unix_server;
00263 }
00264
00273
DBusServer*
00274 _dbus_server_new_for_domain_socket (
const char *path,
00275 dbus_bool_t
abstract,
00276
DBusError *error)
00277 {
00278
DBusServer *server;
00279
DBusServerUnix *unix_server;
00280
int listen_fd;
00281
DBusString address;
00282
char *path_copy;
00283
00284 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00285
00286
if (!
_dbus_string_init (&address))
00287 {
00288
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
NULL);
00289
return NULL;
00290 }
00291
00292
if ((
abstract &&
00293 !
_dbus_string_append (&address,
"unix:abstract=")) ||
00294 (!
abstract &&
00295 !
_dbus_string_append (&address,
"unix:path=")) ||
00296 !
_dbus_string_append (&address, path))
00297 {
00298
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
NULL);
00299
goto failed_0;
00300 }
00301
00302 path_copy =
_dbus_strdup (path);
00303
if (path_copy ==
NULL)
00304 {
00305
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
NULL);
00306
goto failed_0;
00307 }
00308
00309 listen_fd =
_dbus_listen_unix_socket (path,
abstract, error);
00310
_dbus_fd_set_close_on_exec (listen_fd);
00311
00312
if (listen_fd < 0)
00313 {
00314 _DBUS_ASSERT_ERROR_IS_SET (error);
00315
goto failed_1;
00316 }
00317
00318 server =
_dbus_server_new_for_fd (listen_fd, &address);
00319
if (server ==
NULL)
00320 {
00321
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
NULL);
00322
goto failed_2;
00323 }
00324
00325 unix_server = (
DBusServerUnix*) server;
00326 unix_server->
socket_name = path_copy;
00327
00328
_dbus_string_free (&address);
00329
00330
return server;
00331
00332 failed_2:
00333
_dbus_close (listen_fd,
NULL);
00334 failed_1:
00335
dbus_free (path_copy);
00336 failed_0:
00337
_dbus_string_free (&address);
00338
00339
return NULL;
00340 }
00341
00351
DBusServer*
00352 _dbus_server_new_for_tcp_socket (
const char *host,
00353 dbus_uint32_t port,
00354
DBusError *error)
00355 {
00356
DBusServer *server;
00357
int listen_fd;
00358
DBusString address;
00359
00360 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00361
00362
if (!
_dbus_string_init (&address))
00363 {
00364
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
NULL);
00365
return NULL;
00366 }
00367
00368
if (host ==
NULL)
00369 host =
"localhost";
00370
00371
if (!
_dbus_string_append (&address,
"tcp:host=") ||
00372 !
_dbus_string_append (&address, host) ||
00373 !
_dbus_string_append (&address,
",port=") ||
00374 !
_dbus_string_append_int (&address, port))
00375 {
00376
_dbus_string_free (&address);
00377
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
NULL);
00378
return NULL;
00379 }
00380
00381 listen_fd =
_dbus_listen_tcp_socket (host, port, error);
00382
_dbus_fd_set_close_on_exec (listen_fd);
00383
00384
if (listen_fd < 0)
00385 {
00386
_dbus_string_free (&address);
00387
return NULL;
00388 }
00389
00390 server =
_dbus_server_new_for_fd (listen_fd, &address);
00391
if (server ==
NULL)
00392 {
00393
dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
NULL);
00394 close (listen_fd);
00395
_dbus_string_free (&address);
00396
return NULL;
00397 }
00398
00399
_dbus_string_free (&address);
00400
00401
return server;
00402
00403
00404 }
00405