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<hr><h1>dbus-transport.c</h1><div class="fragment"><pre>00001 <font class="comment">/* -*- mode: C; c-file-style: "gnu" -*- */</font>
00002 <font class="comment">/* dbus-transport.c DBusTransport object (internal to D-BUS implementation)</font>
00003 <font class="comment"> *</font>
00004 <font class="comment"> * Copyright (C) 2002, 2003 Red Hat Inc.</font>
00005 <font class="comment"> *</font>
00006 <font class="comment"> * Licensed under the Academic Free License version 2.0</font>
00007 <font class="comment"> * </font>
00008 <font class="comment"> * This program is free software; you can redistribute it and/or modify</font>
00009 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00010 <font class="comment"> * the Free Software Foundation; either version 2 of the License, or</font>
00011 <font class="comment"> * (at your option) any later version.</font>
00012 <font class="comment"> *</font>
00013 <font class="comment"> * This program is distributed in the hope that it will be useful,</font>
00014 <font class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00015 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</font>
00016 <font class="comment"> * GNU General Public License for more details.</font>
00017 <font class="comment"> * </font>
00018 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00019 <font class="comment"> * along with this program; if not, write to the Free Software</font>
00020 <font class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>
00021 <font class="comment"> *</font>
00022 <font class="comment"> */</font>
00023
00024 <font class="preprocessor">#include "dbus-transport-protected.h"</font>
00025 <font class="preprocessor">#include "dbus-transport-unix.h"</font>
00026 <font class="preprocessor">#include "dbus-connection-internal.h"</font>
00027 <font class="preprocessor">#include "dbus-watch.h"</font>
00028 <font class="preprocessor">#include "dbus-auth.h"</font>
00029 <font class="preprocessor">#include "dbus-address.h"</font>
00030 <font class="preprocessor">#ifdef DBUS_BUILD_TESTS</font>
00031 <font class="preprocessor"></font><font class="preprocessor">#include "dbus-server-debug-pipe.h"</font>
00032 <font class="preprocessor">#endif</font>
00033 <font class="preprocessor"></font>
00055 <font class="keyword">static</font> <font class="keywordtype">void</font>
00056 live_messages_size_notify (<a class="code" href="structDBusCounter.html">DBusCounter</a> *counter,
00057 <font class="keywordtype">void</font> *user_data)
00058 {
00059 <a class="code" href="structDBusTransport.html">DBusTransport</a> *transport = user_data;
00060
00061 _dbus_transport_ref (transport);
00062
00063 <font class="preprocessor">#if 0</font>
00064 <font class="preprocessor"></font> _dbus_verbose (<font class="stringliteral">"Counter value is now %d\n"</font>,
00065 (<font class="keywordtype">int</font>) _dbus_counter_get_value (counter));
00066 <font class="preprocessor">#endif</font>
00067 <font class="preprocessor"></font>
00068 <font class="comment">/* disable or re-enable the read watch for the transport if</font>
00069 <font class="comment"> * required.</font>
00070 <font class="comment"> */</font>
00071 <font class="keywordflow">if</font> (* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m6">live_messages_changed</a>)
00072 (* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m6">live_messages_changed</a>) (transport);
00073
00074 _dbus_transport_unref (transport);
00075 }
00076
00087 dbus_bool_t
<a name="l00088"></a><a class="code" href="group__DBusTransport.html#a1">00088</a> _dbus_transport_init_base (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00089 <font class="keyword">const</font> <a class="code" href="structDBusTransportVTable.html">DBusTransportVTable</a> *vtable,
00090 dbus_bool_t server,
00091 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *address)
00092 {
00093 <a class="code" href="structDBusMessageLoader.html">DBusMessageLoader</a> *loader;
00094 <a class="code" href="structDBusAuth.html">DBusAuth</a> *auth;
00095 <a class="code" href="structDBusCounter.html">DBusCounter</a> *counter;
00096 <font class="keywordtype">char</font> *address_copy;
00097
00098 loader = _dbus_message_loader_new ();
00099 <font class="keywordflow">if</font> (loader == NULL)
00100 <font class="keywordflow">return</font> FALSE;
00101
00102 <font class="keywordflow">if</font> (server)
00103 auth = _dbus_auth_server_new ();
00104 <font class="keywordflow">else</font>
00105 auth = _dbus_auth_client_new ();
00106 <font class="keywordflow">if</font> (auth == NULL)
00107 {
00108 _dbus_message_loader_unref (loader);
00109 <font class="keywordflow">return</font> FALSE;
00110 }
00111
00112 counter = _dbus_counter_new ();
00113 <font class="keywordflow">if</font> (counter == NULL)
00114 {
00115 _dbus_auth_unref (auth);
00116 _dbus_message_loader_unref (loader);
00117 <font class="keywordflow">return</font> FALSE;
00118 }
00119
00120 <font class="keywordflow">if</font> (server)
00121 {
00122 _dbus_assert (address == NULL);
00123 address_copy = NULL;
00124 }
00125 <font class="keywordflow">else</font>
00126 {
00127 _dbus_assert (address != NULL);
00128
00129 <font class="keywordflow">if</font> (!_dbus_string_copy_data (address, &address_copy))
00130 {
00131 _dbus_counter_unref (counter);
00132 _dbus_auth_unref (auth);
00133 _dbus_message_loader_unref (loader);
00134 <font class="keywordflow">return</font> FALSE;
00135 }
00136 }
00137
00138 transport-><a class="code" href="structDBusTransport.html#m0">refcount</a> = 1;
00139 transport-><a class="code" href="structDBusTransport.html#m1">vtable</a> = vtable;
00140 transport-><a class="code" href="structDBusTransport.html#m3">loader</a> = loader;
00141 transport-><a class="code" href="structDBusTransport.html#m4">auth</a> = auth;
00142 transport-><a class="code" href="structDBusTransport.html#m7">live_messages_size</a> = counter;
00143 transport-><a class="code" href="structDBusTransport.html#m13">authenticated</a> = FALSE;
00144 transport-><a class="code" href="structDBusTransport.html#m14">messages_need_sending</a> = FALSE;
00145 transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a> = FALSE;
00146 transport-><a class="code" href="structDBusTransport.html#m15">send_credentials_pending</a> = !server;
00147 transport-><a class="code" href="structDBusTransport.html#m16">receive_credentials_pending</a> = server;
00148 transport-><a class="code" href="structDBusTransport.html#m17">is_server</a> = server;
00149 transport-><a class="code" href="structDBusTransport.html#m8">address</a> = address_copy;
00150
00151 transport-><a class="code" href="structDBusTransport.html#m9">unix_user_function</a> = NULL;
00152 transport-><a class="code" href="structDBusTransport.html#m10">unix_user_data</a> = NULL;
00153 transport-><a class="code" href="structDBusTransport.html#m11">free_unix_user_data</a> = NULL;
00154
00155 <font class="comment">/* Try to default to something that won't totally hose the system,</font>
00156 <font class="comment"> * but doesn't impose too much of a limitation.</font>
00157 <font class="comment"> */</font>
00158 transport-><a class="code" href="structDBusTransport.html#m6">max_live_messages_size</a> = _DBUS_ONE_MEGABYTE * 63;
00159
00160 transport-><a class="code" href="structDBusTransport.html#m5">credentials</a>.<a class="code" href="structDBusCredentials.html#m0">pid</a> = -1;
00161 transport-><a class="code" href="structDBusTransport.html#m5">credentials</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a> = -1;
00162 transport-><a class="code" href="structDBusTransport.html#m5">credentials</a>.<a class="code" href="structDBusCredentials.html#m2">gid</a> = -1;
00163
00164 _dbus_counter_set_notify (transport-><a class="code" href="structDBusTransport.html#m7">live_messages_size</a>,
00165 transport-><a class="code" href="structDBusTransport.html#m6">max_live_messages_size</a>,
00166 live_messages_size_notify,
00167 transport);
00168
00169 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m8">address</a>)
00170 _dbus_verbose (<font class="stringliteral">"Initialized transport on address %s\n"</font>, transport-><a class="code" href="structDBusTransport.html#m8">address</a>);
00171
00172 <font class="keywordflow">return</font> TRUE;
00173 }
00174
00181 <font class="keywordtype">void</font>
<a name="l00182"></a><a class="code" href="group__DBusTransport.html#a2">00182</a> _dbus_transport_finalize_base (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00183 {
00184 <font class="keywordflow">if</font> (!transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>)
00185 _dbus_transport_disconnect (transport);
00186
00187 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m11">free_unix_user_data</a> != NULL)
00188 (* transport-><a class="code" href="structDBusTransport.html#m11">free_unix_user_data</a>) (transport-><a class="code" href="structDBusTransport.html#m10">unix_user_data</a>);
00189
00190 _dbus_message_loader_unref (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>);
00191 _dbus_auth_unref (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>);
00192 _dbus_counter_set_notify (transport-><a class="code" href="structDBusTransport.html#m7">live_messages_size</a>,
00193 0, NULL, NULL);
00194 _dbus_counter_unref (transport-><a class="code" href="structDBusTransport.html#m7">live_messages_size</a>);
00195 dbus_free (transport-><a class="code" href="structDBusTransport.html#m8">address</a>);
00196 }
00197
00209 <a class="code" href="structDBusTransport.html">DBusTransport</a>*
<a name="l00210"></a><a class="code" href="group__DBusTransport.html#a3">00210</a> _dbus_transport_open (<font class="keyword">const</font> <font class="keywordtype">char</font> *address,
00211 <a class="code" href="structDBusError.html">DBusError</a> *error)
00212 {
00213 <a class="code" href="structDBusTransport.html">DBusTransport</a> *transport;
00214 <a class="code" href="structDBusAddressEntry.html">DBusAddressEntry</a> **entries;
00215 <a class="code" href="structDBusError.html">DBusError</a> tmp_error;
00216 <a class="code" href="structDBusError.html">DBusError</a> first_error;
00217 <font class="keywordtype">int</font> len, i;
00218 <font class="keyword">const</font> <font class="keywordtype">char</font> *address_problem_type;
00219 <font class="keyword">const</font> <font class="keywordtype">char</font> *address_problem_field;
00220 <font class="keyword">const</font> <font class="keywordtype">char</font> *address_problem_other;
00221
00222 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00223
00224 <font class="keywordflow">if</font> (!dbus_parse_address (address, &entries, &len, error))
00225 <font class="keywordflow">return</font> NULL;
00226
00227 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00228
00229 transport = NULL;
00230 address_problem_type = NULL;
00231 address_problem_field = NULL;
00232 address_problem_other = NULL;
00233
00234 dbus_error_init (&tmp_error);
00235 dbus_error_init (&first_error);
00236 <font class="keywordflow">for</font> (i = 0; i < len; i++)
00237 {
00238 <font class="keyword">const</font> <font class="keywordtype">char</font> *method;
00239
00240 method = dbus_address_entry_get_method (entries[i]);
00241
00242 <font class="keywordflow">if</font> (strcmp (method, <font class="stringliteral">"unix"</font>) == 0)
00243 {
00244 <font class="keyword">const</font> <font class="keywordtype">char</font> *path = dbus_address_entry_get_value (entries[i], <font class="stringliteral">"path"</font>);
00245 <font class="keyword">const</font> <font class="keywordtype">char</font> *tmpdir = dbus_address_entry_get_value (entries[i], <font class="stringliteral">"tmpdir"</font>);
00246 <font class="keyword">const</font> <font class="keywordtype">char</font> *<font class="keyword">abstract</font> = dbus_address_entry_get_value (entries[i], <font class="stringliteral">"abstract"</font>);
00247
00248 <font class="keywordflow">if</font> (tmpdir != NULL)
00249 {
00250 address_problem_other = <font class="stringliteral">"cannot use the \"tmpdir\" option for an address to connect to, only in an address to listen on"</font>;
00251 <font class="keywordflow">goto</font> bad_address;
00252 }
00253
00254 <font class="keywordflow">if</font> (path == NULL && <font class="keyword">abstract</font> == NULL)
00255 {
00256 address_problem_type = <font class="stringliteral">"unix"</font>;
00257 address_problem_field = <font class="stringliteral">"path or abstract"</font>;
00258 <font class="keywordflow">goto</font> bad_address;
00259 }
00260
00261 <font class="keywordflow">if</font> (path != NULL && <font class="keyword">abstract</font> != NULL)
00262 {
00263 address_problem_other = <font class="stringliteral">"can't specify both \"path\" and \"abstract\" options in an address"</font>;
00264 <font class="keywordflow">goto</font> bad_address;
00265 }
00266
00267 <font class="keywordflow">if</font> (path)
00268 transport = _dbus_transport_new_for_domain_socket (path, FALSE,
00269 &tmp_error);
00270 <font class="keywordflow">else</font>
00271 transport = _dbus_transport_new_for_domain_socket (<font class="keyword">abstract</font>, TRUE,
00272 &tmp_error);
00273 }
00274 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (strcmp (method, <font class="stringliteral">"tcp"</font>) == 0)
00275 {
00276 <font class="keyword">const</font> <font class="keywordtype">char</font> *host = dbus_address_entry_get_value (entries[i], <font class="stringliteral">"host"</font>);
00277 <font class="keyword">const</font> <font class="keywordtype">char</font> *port = dbus_address_entry_get_value (entries[i], <font class="stringliteral">"port"</font>);
00278 <a class="code" href="structDBusString.html">DBusString</a> str;
00279 <font class="keywordtype">long</font> lport;
00280 dbus_bool_t sresult;
00281
00282 <font class="keywordflow">if</font> (port == NULL)
00283 {
00284 address_problem_type = <font class="stringliteral">"tcp"</font>;
00285 address_problem_field = <font class="stringliteral">"port"</font>;
00286 <font class="keywordflow">goto</font> bad_address;
00287 }
00288
00289 _dbus_string_init_const (&str, port);
00290 sresult = _dbus_string_parse_int (&str, 0, &lport, NULL);
00291 _dbus_string_free (&str);
00292
00293 <font class="keywordflow">if</font> (sresult == FALSE || lport <= 0 || lport > 65535)
00294 {
00295 address_problem_other = <font class="stringliteral">"Port is not an integer between 0 and 65535"</font>;
00296 <font class="keywordflow">goto</font> bad_address;
00297 }
00298
00299 transport = _dbus_transport_new_for_tcp_socket (host, lport, &tmp_error);
00300 }
00301 <font class="preprocessor">#ifdef DBUS_BUILD_TESTS</font>
00302 <font class="preprocessor"></font> <font class="keywordflow">else</font> <font class="keywordflow">if</font> (strcmp (method, <font class="stringliteral">"debug-pipe"</font>) == 0)
00303 {
00304 <font class="keyword">const</font> <font class="keywordtype">char</font> *name = dbus_address_entry_get_value (entries[i], <font class="stringliteral">"name"</font>);
00305
00306 <font class="keywordflow">if</font> (name == NULL)
00307 {
00308 address_problem_type = <font class="stringliteral">"debug-pipe"</font>;
00309 address_problem_field = <font class="stringliteral">"name"</font>;
00310 <font class="keywordflow">goto</font> bad_address;
00311 }
00312
00313 transport = _dbus_transport_debug_pipe_new (name, &tmp_error);
00314 }
00315 <font class="preprocessor">#endif</font>
00316 <font class="preprocessor"></font> <font class="keywordflow">else</font>
00317 {
00318 address_problem_other = <font class="stringliteral">"Unknown address type (examples of valid types are \"unix\" and \"tcp\")"</font>;
00319 <font class="keywordflow">goto</font> bad_address;
00320 }
00321
00322 <font class="keywordflow">if</font> (transport)
00323 <font class="keywordflow">break</font>;
00324
00325 _DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
00326
00327 <font class="keywordflow">if</font> (i == 0)
00328 dbus_move_error (&tmp_error, &first_error);
00329 <font class="keywordflow">else</font>
00330 dbus_error_free (&tmp_error);
00331 }
00332
00333 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00334 _DBUS_ASSERT_ERROR_IS_CLEAR (&tmp_error);
00335
00336 <font class="keywordflow">if</font> (transport == NULL)
00337 {
00338 _DBUS_ASSERT_ERROR_IS_SET (&first_error);
00339 dbus_move_error (&first_error, error);
00340 }
00341 <font class="keywordflow">else</font>
00342 {
00343 dbus_error_free (&first_error);
00344 }
00345
00346 dbus_address_entries_free (entries);
00347 <font class="keywordflow">return</font> transport;
00348
00349 bad_address:
00350 dbus_address_entries_free (entries);
00351
00352 <font class="keywordflow">if</font> (address_problem_type != NULL)
00353 dbus_set_error (error, DBUS_ERROR_BAD_ADDRESS,
00354 <font class="stringliteral">"Address of type %s was missing argument %s"</font>,
00355 address_problem_type, address_problem_field);
00356 <font class="keywordflow">else</font>
00357 dbus_set_error (error, DBUS_ERROR_BAD_ADDRESS,
00358 <font class="stringliteral">"Could not parse address: %s"</font>,
00359 address_problem_other);
00360
00361 <font class="keywordflow">return</font> NULL;
00362 }
00363
00370 <a class="code" href="structDBusTransport.html">DBusTransport</a> *
<a name="l00371"></a><a class="code" href="group__DBusTransport.html#a4">00371</a> _dbus_transport_ref (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00372 {
00373 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m0">refcount</a> > 0);
00374
00375 transport-><a class="code" href="structDBusTransport.html#m0">refcount</a> += 1;
00376
00377 <font class="keywordflow">return</font> transport;
00378 }
00379
00387 <font class="keywordtype">void</font>
<a name="l00388"></a><a class="code" href="group__DBusTransport.html#a5">00388</a> _dbus_transport_unref (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00389 {
00390 _dbus_assert (transport != NULL);
00391 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m0">refcount</a> > 0);
00392
00393 transport-><a class="code" href="structDBusTransport.html#m0">refcount</a> -= 1;
00394 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m0">refcount</a> == 0)
00395 {
00396 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m0">finalize</a> != NULL);
00397
00398 (* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m0">finalize</a>) (transport);
00399 }
00400 }
00401
00410 <font class="keywordtype">void</font>
<a name="l00411"></a><a class="code" href="group__DBusTransport.html#a6">00411</a> _dbus_transport_disconnect (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00412 {
00413 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m2">disconnect</a> != NULL);
00414
00415 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>)
00416 <font class="keywordflow">return</font>;
00417
00418 (* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m2">disconnect</a>) (transport);
00419
00420 transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a> = TRUE;
00421 }
00422
00431 dbus_bool_t
<a name="l00432"></a><a class="code" href="group__DBusTransport.html#a7">00432</a> _dbus_transport_get_is_connected (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00433 {
00434 <font class="keywordflow">return</font> !transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>;
00435 }
00436
00446 dbus_bool_t
<a name="l00447"></a><a class="code" href="group__DBusTransport.html#a8">00447</a> _dbus_transport_get_is_authenticated (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00448 {
00449 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m13">authenticated</a>)
00450 <font class="keywordflow">return</font> TRUE;
00451 <font class="keywordflow">else</font>
00452 {
00453 dbus_bool_t maybe_authenticated;
00454
00455 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>)
00456 <font class="keywordflow">return</font> FALSE;
00457
00458 maybe_authenticated =
00459 (!(transport-><a class="code" href="structDBusTransport.html#m15">send_credentials_pending</a> ||
00460 transport-><a class="code" href="structDBusTransport.html#m16">receive_credentials_pending</a>));
00461
00462 <font class="keywordflow">if</font> (maybe_authenticated)
00463 {
00464 <font class="keywordflow">switch</font> (_dbus_auth_do_work (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>))
00465 {
00466 <font class="keywordflow">case</font> DBUS_AUTH_STATE_AUTHENTICATED:
00467 <font class="comment">/* leave as maybe_authenticated */</font>
00468 <font class="keywordflow">break</font>;
00469 <font class="keywordflow">default</font>:
00470 maybe_authenticated = FALSE;
00471 }
00472 }
00473
00474 <font class="comment">/* If we've authenticated as some identity, check that the auth</font>
00475 <font class="comment"> * identity is the same as our own identity. In the future, we</font>
00476 <font class="comment"> * may have API allowing applications to specify how this is</font>
00477 <font class="comment"> * done, for example they may allow connection as any identity,</font>
00478 <font class="comment"> * but then impose restrictions on certain identities.</font>
00479 <font class="comment"> * Or they may give certain identities extra privileges.</font>
00480 <font class="comment"> */</font>
00481
00482 <font class="keywordflow">if</font> (maybe_authenticated && transport-><a class="code" href="structDBusTransport.html#m17">is_server</a>)
00483 {
00484 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> auth_identity;
00485
00486 _dbus_auth_get_identity (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>, &auth_identity);
00487
00488 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m9">unix_user_function</a> != NULL)
00489 {
00490 <font class="comment">/* FIXME we hold the connection lock here and should drop it */</font>
00491 <font class="keywordflow">if</font> (!(* transport-><a class="code" href="structDBusTransport.html#m9">unix_user_function</a>) (transport-><a class="code" href="structDBusTransport.html#m2">connection</a>,
00492 auth_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>,
00493 transport-><a class="code" href="structDBusTransport.html#m10">unix_user_data</a>))
00494 {
00495 _dbus_verbose (<font class="stringliteral">"Client UID "</font>DBUS_UID_FORMAT
00496 <font class="stringliteral">" was rejected, disconnecting\n"</font>,
00497 auth_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>);
00498 _dbus_transport_disconnect (transport);
00499 <font class="keywordflow">return</font> FALSE;
00500 }
00501 <font class="keywordflow">else</font>
00502 {
00503 _dbus_verbose (<font class="stringliteral">"Client UID "</font>DBUS_UID_FORMAT<font class="stringliteral">" authorized\n"</font>, auth_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>);
00504 }
00505 }
00506 <font class="keywordflow">else</font>
00507 {
00508 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> our_identity;
00509
00510 _dbus_credentials_from_current_process (&our_identity);
00511
00512 <font class="keywordflow">if</font> (!_dbus_credentials_match (&our_identity,
00513 &auth_identity))
00514 {
00515 _dbus_verbose (<font class="stringliteral">"Client authorized as UID "</font>DBUS_UID_FORMAT
00516 <font class="stringliteral">" but our UID is "</font>DBUS_UID_FORMAT<font class="stringliteral">", disconnecting\n"</font>,
00517 auth_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>, our_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>);
00518 _dbus_transport_disconnect (transport);
00519 <font class="keywordflow">return</font> FALSE;
00520 }
00521 <font class="keywordflow">else</font>
00522 {
00523 _dbus_verbose (<font class="stringliteral">"Client authorized as UID "</font>DBUS_UID_FORMAT
00524 <font class="stringliteral">" matching our UID "</font>DBUS_UID_FORMAT<font class="stringliteral">"\n"</font>,
00525 auth_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>, our_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>);
00526 }
00527 }
00528 }
00529
00530 transport-><a class="code" href="structDBusTransport.html#m13">authenticated</a> = maybe_authenticated;
00531
00532 <font class="keywordflow">return</font> transport-><a class="code" href="structDBusTransport.html#m13">authenticated</a>;
00533 }
00534 }
00535
00543 <font class="keyword">const</font> <font class="keywordtype">char</font>*
<a name="l00544"></a><a class="code" href="group__DBusTransport.html#a9">00544</a> _dbus_transport_get_address (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00545 {
00546 <font class="keywordflow">return</font> transport-><a class="code" href="structDBusTransport.html#m8">address</a>;
00547 }
00548
00558 dbus_bool_t
<a name="l00559"></a><a class="code" href="group__DBusTransport.html#a10">00559</a> _dbus_transport_handle_watch (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00560 <a class="code" href="structDBusWatch.html">DBusWatch</a> *watch,
00561 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> condition)
00562 {
00563 dbus_bool_t retval;
00564
00565 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m1">handle_watch</a> != NULL);
00566
00567 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>)
00568 <font class="keywordflow">return</font> TRUE;
00569
00570 <font class="keywordflow">if</font> (dbus_watch_get_fd (watch) < 0)
00571 {
00572 _dbus_warn (<font class="stringliteral">"Tried to handle an invalidated watch; this watch should have been removed\n"</font>);
00573 <font class="keywordflow">return</font> TRUE;
00574 }
00575
00576 _dbus_watch_sanitize_condition (watch, &condition);
00577
00578 _dbus_transport_ref (transport);
00579 _dbus_watch_ref (watch);
00580 retval = (* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m1">handle_watch</a>) (transport, watch, condition);
00581 _dbus_watch_unref (watch);
00582 _dbus_transport_unref (transport);
00583
00584 <font class="keywordflow">return</font> retval;
00585 }
00586
00596 dbus_bool_t
<a name="l00597"></a><a class="code" href="group__DBusTransport.html#a11">00597</a> _dbus_transport_set_connection (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00598 <a class="code" href="structDBusConnection.html">DBusConnection</a> *connection)
00599 {
00600 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m3">connection_set</a> != NULL);
00601 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m2">connection</a> == NULL);
00602
00603 transport-><a class="code" href="structDBusTransport.html#m2">connection</a> = connection;
00604
00605 _dbus_transport_ref (transport);
00606 <font class="keywordflow">if</font> (!(* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m3">connection_set</a>) (transport))
00607 transport-><a class="code" href="structDBusTransport.html#m2">connection</a> = NULL;
00608 _dbus_transport_unref (transport);
00609
00610 <font class="keywordflow">return</font> transport-><a class="code" href="structDBusTransport.html#m2">connection</a> != NULL;
00611 }
00612
00622 <font class="keywordtype">void</font>
<a name="l00623"></a><a class="code" href="group__DBusTransport.html#a12">00623</a> _dbus_transport_messages_pending (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00624 <font class="keywordtype">int</font> queue_length)
00625 {
00626 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m4">messages_pending</a> != NULL);
00627
00628 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>)
00629 <font class="keywordflow">return</font>;
00630
00631 transport-><a class="code" href="structDBusTransport.html#m14">messages_need_sending</a> = queue_length > 0;
00632
00633 _dbus_transport_ref (transport);
00634 (* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m4">messages_pending</a>) (transport,
00635 queue_length);
00636 _dbus_transport_unref (transport);
00637 }
00638
00650 <font class="keywordtype">void</font>
<a name="l00651"></a><a class="code" href="group__DBusTransport.html#a13">00651</a> _dbus_transport_do_iteration (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00652 <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> flags,
00653 <font class="keywordtype">int</font> timeout_milliseconds)
00654 {
00655 _dbus_assert (transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m5">do_iteration</a> != NULL);
00656
00657 _dbus_verbose (<font class="stringliteral">"Transport iteration flags 0x%x timeout %d connected = %d\n"</font>,
00658 flags, timeout_milliseconds, !transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>);
00659
00660 <font class="keywordflow">if</font> ((flags & (DBUS_ITERATION_DO_WRITING |
00661 DBUS_ITERATION_DO_READING)) == 0)
00662 <font class="keywordflow">return</font>; <font class="comment">/* Nothing to do */</font>
00663
00664 <font class="keywordflow">if</font> (transport-><a class="code" href="structDBusTransport.html#m12">disconnected</a>)
00665 <font class="keywordflow">return</font>;
00666
00667 _dbus_transport_ref (transport);
00668 (* transport-><a class="code" href="structDBusTransport.html#m1">vtable</a>-><a class="code" href="structDBusTransportVTable.html#m5">do_iteration</a>) (transport, flags,
00669 timeout_milliseconds);
00670 _dbus_transport_unref (transport);
00671 }
00672
00673 <font class="keyword">static</font> dbus_bool_t
00674 recover_unused_bytes (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00675 {
00676 <font class="keywordflow">if</font> (_dbus_auth_needs_decoding (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>))
00677 {
00678 <a class="code" href="structDBusString.html">DBusString</a> plaintext;
00679 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *encoded;
00680 <a class="code" href="structDBusString.html">DBusString</a> *buffer;
00681 <font class="keywordtype">int</font> orig_len;
00682
00683 <font class="keywordflow">if</font> (!_dbus_string_init (&plaintext))
00684 <font class="keywordflow">goto</font> nomem;
00685
00686 _dbus_auth_get_unused_bytes (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>,
00687 &encoded);
00688
00689 <font class="keywordflow">if</font> (!_dbus_auth_decode_data (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>,
00690 encoded, &plaintext))
00691 {
00692 _dbus_string_free (&plaintext);
00693 <font class="keywordflow">goto</font> nomem;
00694 }
00695
00696 _dbus_message_loader_get_buffer (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>,
00697 &buffer);
00698
00699 orig_len = _dbus_string_get_length (buffer);
00700
00701 <font class="keywordflow">if</font> (!_dbus_string_move (&plaintext, 0, buffer,
00702 orig_len))
00703 {
00704 _dbus_string_free (&plaintext);
00705 <font class="keywordflow">goto</font> nomem;
00706 }
00707
00708 _dbus_verbose (<font class="stringliteral">" %d unused bytes sent to message loader\n"</font>,
00709 _dbus_string_get_length (buffer) -
00710 orig_len);
00711
00712 _dbus_message_loader_return_buffer (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>,
00713 buffer,
00714 _dbus_string_get_length (buffer) -
00715 orig_len);
00716
00717 _dbus_auth_delete_unused_bytes (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>);
00718
00719 _dbus_string_free (&plaintext);
00720 }
00721 <font class="keywordflow">else</font>
00722 {
00723 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *bytes;
00724 <a class="code" href="structDBusString.html">DBusString</a> *buffer;
00725 <font class="keywordtype">int</font> orig_len;
00726 dbus_bool_t succeeded;
00727
00728 _dbus_message_loader_get_buffer (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>,
00729 &buffer);
00730
00731 orig_len = _dbus_string_get_length (buffer);
00732
00733 _dbus_auth_get_unused_bytes (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>,
00734 &bytes);
00735
00736 succeeded = TRUE;
00737 <font class="keywordflow">if</font> (!_dbus_string_copy (bytes, 0, buffer, _dbus_string_get_length (buffer)))
00738 succeeded = FALSE;
00739
00740 _dbus_verbose (<font class="stringliteral">" %d unused bytes sent to message loader\n"</font>,
00741 _dbus_string_get_length (buffer) -
00742 orig_len);
00743
00744 _dbus_message_loader_return_buffer (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>,
00745 buffer,
00746 _dbus_string_get_length (buffer) -
00747 orig_len);
00748
00749 <font class="keywordflow">if</font> (succeeded)
00750 _dbus_auth_delete_unused_bytes (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>);
00751 <font class="keywordflow">else</font>
00752 <font class="keywordflow">goto</font> nomem;
00753 }
00754
00755 <font class="keywordflow">return</font> TRUE;
00756
00757 nomem:
00758 _dbus_verbose (<font class="stringliteral">"Not enough memory to transfer unused bytes from auth conversation\n"</font>);
00759 <font class="keywordflow">return</font> FALSE;
00760 }
00761
00769 DBusDispatchStatus
<a name="l00770"></a><a class="code" href="group__DBusTransport.html#a15">00770</a> _dbus_transport_get_dispatch_status (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00771 {
00772 <font class="keywordflow">if</font> (_dbus_counter_get_value (transport-><a class="code" href="structDBusTransport.html#m7">live_messages_size</a>) >= transport-><a class="code" href="structDBusTransport.html#m6">max_live_messages_size</a>)
00773 <font class="keywordflow">return</font> DBUS_DISPATCH_COMPLETE; <font class="comment">/* complete for now */</font>
00774
00775 <font class="keywordflow">if</font> (!_dbus_transport_get_is_authenticated (transport))
00776 {
00777 <font class="keywordflow">if</font> (_dbus_auth_do_work (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>) ==
00778 DBUS_AUTH_STATE_WAITING_FOR_MEMORY)
00779 <font class="keywordflow">return</font> DBUS_DISPATCH_NEED_MEMORY;
00780 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (!_dbus_transport_get_is_authenticated (transport))
00781 <font class="keywordflow">return</font> DBUS_DISPATCH_COMPLETE;
00782 }
00783
00784 <font class="keywordflow">if</font> (!transport-><a class="code" href="structDBusTransport.html#m18">unused_bytes_recovered</a> &&
00785 !recover_unused_bytes (transport))
00786 <font class="keywordflow">return</font> DBUS_DISPATCH_NEED_MEMORY;
00787
00788 transport-><a class="code" href="structDBusTransport.html#m18">unused_bytes_recovered</a> = TRUE;
00789
00790 <font class="keywordflow">if</font> (!_dbus_message_loader_queue_messages (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>))
00791 <font class="keywordflow">return</font> DBUS_DISPATCH_NEED_MEMORY;
00792
00793 <font class="keywordflow">if</font> (_dbus_message_loader_peek_message (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>) != NULL)
00794 <font class="keywordflow">return</font> DBUS_DISPATCH_DATA_REMAINS;
00795 <font class="keywordflow">else</font>
00796 <font class="keywordflow">return</font> DBUS_DISPATCH_COMPLETE;
00797 }
00798
00807 dbus_bool_t
<a name="l00808"></a><a class="code" href="group__DBusTransport.html#a16">00808</a> _dbus_transport_queue_messages (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00809 {
00810 DBusDispatchStatus status;
00811
00812 <font class="preprocessor">#if 0</font>
00813 <font class="preprocessor"></font> _dbus_verbose (<font class="stringliteral">"_dbus_transport_queue_messages()\n"</font>);
00814 <font class="preprocessor">#endif</font>
00815 <font class="preprocessor"></font>
00816 <font class="comment">/* Queue any messages */</font>
00817 <font class="keywordflow">while</font> ((status = _dbus_transport_get_dispatch_status (transport)) == DBUS_DISPATCH_DATA_REMAINS)
00818 {
00819 <a class="code" href="structDBusMessage.html">DBusMessage</a> *message;
00820 <a class="code" href="structDBusList.html">DBusList</a> *link;
00821
00822 link = _dbus_message_loader_pop_message_link (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>);
00823 _dbus_assert (link != NULL);
00824
00825 message = link-><a class="code" href="structDBusList.html#m2">data</a>;
00826
00827 _dbus_verbose (<font class="stringliteral">"queueing received message %p\n"</font>, message);
00828
00829 <font class="keywordflow">if</font> (!_dbus_message_add_size_counter (message, transport-><a class="code" href="structDBusTransport.html#m7">live_messages_size</a>))
00830 {
00831 _dbus_message_loader_putback_message_link (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>,
00832 link);
00833 status = DBUS_DISPATCH_NEED_MEMORY;
00834 <font class="keywordflow">break</font>;
00835 }
00836 <font class="keywordflow">else</font>
00837 {
00838 <font class="comment">/* pass ownership of link and message ref to connection */</font>
00839 _dbus_connection_queue_received_message_link (transport-><a class="code" href="structDBusTransport.html#m2">connection</a>,
00840 link);
00841 }
00842 }
00843
00844 <font class="keywordflow">if</font> (_dbus_message_loader_get_is_corrupted (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>))
00845 {
00846 _dbus_verbose (<font class="stringliteral">"Corrupted message stream, disconnecting\n"</font>);
00847 _dbus_transport_disconnect (transport);
00848 }
00849
00850 <font class="keywordflow">return</font> status != DBUS_DISPATCH_NEED_MEMORY;
00851 }
00852
00859 <font class="keywordtype">void</font>
<a name="l00860"></a><a class="code" href="group__DBusTransport.html#a17">00860</a> _dbus_transport_set_max_message_size (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00861 <font class="keywordtype">long</font> size)
00862 {
00863 _dbus_message_loader_set_max_message_size (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>, size);
00864 }
00865
00872 <font class="keywordtype">long</font>
<a name="l00873"></a><a class="code" href="group__DBusTransport.html#a18">00873</a> _dbus_transport_get_max_message_size (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00874 {
00875 <font class="keywordflow">return</font> _dbus_message_loader_get_max_message_size (transport-><a class="code" href="structDBusTransport.html#m3">loader</a>);
00876 }
00877
00884 <font class="keywordtype">void</font>
<a name="l00885"></a><a class="code" href="group__DBusTransport.html#a19">00885</a> _dbus_transport_set_max_received_size (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00886 <font class="keywordtype">long</font> size)
00887 {
00888 transport-><a class="code" href="structDBusTransport.html#m6">max_live_messages_size</a> = size;
00889 _dbus_counter_set_notify (transport-><a class="code" href="structDBusTransport.html#m7">live_messages_size</a>,
00890 transport-><a class="code" href="structDBusTransport.html#m6">max_live_messages_size</a>,
00891 live_messages_size_notify,
00892 transport);
00893 }
00894
00895
00902 <font class="keywordtype">long</font>
<a name="l00903"></a><a class="code" href="group__DBusTransport.html#a20">00903</a> _dbus_transport_get_max_received_size (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport)
00904 {
00905 <font class="keywordflow">return</font> transport-><a class="code" href="structDBusTransport.html#m6">max_live_messages_size</a>;
00906 }
00907
00915 dbus_bool_t
<a name="l00916"></a><a class="code" href="group__DBusTransport.html#a21">00916</a> _dbus_transport_get_unix_user (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00917 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> *uid)
00918 {
00919 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> auth_identity;
00920
00921 *uid = _DBUS_INT_MAX; <font class="comment">/* better than some root or system user in</font>
00922 <font class="comment"> * case of bugs in the caller. Caller should</font>
00923 <font class="comment"> * never use this value on purpose, however.</font>
00924 <font class="comment"> */</font>
00925
00926 <font class="keywordflow">if</font> (!transport-><a class="code" href="structDBusTransport.html#m13">authenticated</a>)
00927 <font class="keywordflow">return</font> FALSE;
00928
00929 _dbus_auth_get_identity (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>, &auth_identity);
00930
00931 <font class="keywordflow">if</font> (auth_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a> != DBUS_UID_UNSET)
00932 {
00933 *uid = auth_identity.<a class="code" href="structDBusCredentials.html#m1">uid</a>;
00934 <font class="keywordflow">return</font> TRUE;
00935 }
00936 <font class="keywordflow">else</font>
00937 <font class="keywordflow">return</font> FALSE;
00938 }
00939
00950 <font class="keywordtype">void</font>
<a name="l00951"></a><a class="code" href="group__DBusTransport.html#a22">00951</a> _dbus_transport_set_unix_user_function (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00952 DBusAllowUnixUserFunction function,
00953 <font class="keywordtype">void</font> *data,
00954 DBusFreeFunction free_data_function,
00955 <font class="keywordtype">void</font> **old_data,
00956 DBusFreeFunction *old_free_data_function)
00957 {
00958 *old_data = transport-><a class="code" href="structDBusTransport.html#m10">unix_user_data</a>;
00959 *old_free_data_function = transport-><a class="code" href="structDBusTransport.html#m11">free_unix_user_data</a>;
00960
00961 transport-><a class="code" href="structDBusTransport.html#m9">unix_user_function</a> = function;
00962 transport-><a class="code" href="structDBusTransport.html#m10">unix_user_data</a> = data;
00963 transport-><a class="code" href="structDBusTransport.html#m11">free_unix_user_data</a> = free_data_function;
00964 }
00965
00974 dbus_bool_t
<a name="l00975"></a><a class="code" href="group__DBusTransport.html#a23">00975</a> _dbus_transport_set_auth_mechanisms (<a class="code" href="structDBusTransport.html">DBusTransport</a> *transport,
00976 <font class="keyword">const</font> <font class="keywordtype">char</font> **mechanisms)
00977 {
00978 <font class="keywordflow">return</font> _dbus_auth_set_mechanisms (transport-><a class="code" href="structDBusTransport.html#m4">auth</a>, mechanisms);
00979 }
00980
00981
</pre></div><hr><address align="right"><small>Generated on Wed Jun 9 05:01:27 2004 for D-BUS by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0
width=110 height=53></a>1.2.15 </small></address>
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distrib
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Mandriva
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x86_64
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>
main-release
>
by-pkgid
>
926d2d1e3111287cee1b0a4fad4fb4f6
>
files
>
141
