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<hr><h1>dbus-auth.c</h1><div class="fragment"><pre>00001 <font class="comment">/* -*- mode: C; c-file-style: "gnu" -*- */</font>
00002 <font class="comment">/* dbus-auth.c Authentication</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 <font class="preprocessor">#include "dbus-auth.h"</font>
00024 <font class="preprocessor">#include "dbus-string.h"</font>
00025 <font class="preprocessor">#include "dbus-list.h"</font>
00026 <font class="preprocessor">#include "dbus-internals.h"</font>
00027 <font class="preprocessor">#include "dbus-keyring.h"</font>
00028 <font class="preprocessor">#include "dbus-sha.h"</font>
00029 <font class="preprocessor">#include "dbus-userdb.h"</font>
00030
<a name="l00071"></a><a class="code" href="group__DBusAuthInternals.html#a0">00071</a> <font class="keyword">typedef</font> dbus_bool_t (* DBusInitialResponseFunction) (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00072 <a class="code" href="structDBusString.html">DBusString</a> *response);
00073
<a name="l00078"></a><a class="code" href="group__DBusAuthInternals.html#a1">00078</a> <font class="keyword">typedef</font> dbus_bool_t (* DBusAuthDataFunction) (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00079 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data);
00080
<a name="l00084"></a><a class="code" href="group__DBusAuthInternals.html#a2">00084</a> <font class="keyword">typedef</font> dbus_bool_t (* DBusAuthEncodeFunction) (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00085 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data,
00086 <a class="code" href="structDBusString.html">DBusString</a> *encoded);
00087
<a name="l00091"></a><a class="code" href="group__DBusAuthInternals.html#a3">00091</a> <font class="keyword">typedef</font> dbus_bool_t (* DBusAuthDecodeFunction) (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00092 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data,
00093 <a class="code" href="structDBusString.html">DBusString</a> *decoded);
00094
<a name="l00098"></a><a class="code" href="group__DBusAuthInternals.html#a4">00098</a> <font class="keyword">typedef</font> void (* DBusAuthShutdownFunction) (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth);
00099
<a name="l00103"></a><a class="code" href="structDBusAuthMechanismHandler.html">00103</a> <font class="keyword">typedef</font> <font class="keyword">struct</font>
00104 <font class="keyword"></font>{
<a name="l00105"></a><a class="code" href="structDBusAuthMechanismHandler.html#m0">00105</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *mechanism;
<a name="l00106"></a><a class="code" href="structDBusAuthMechanismHandler.html#m1">00106</a> DBusAuthDataFunction server_data_func;
<a name="l00107"></a><a class="code" href="structDBusAuthMechanismHandler.html#m2">00107</a> DBusAuthEncodeFunction server_encode_func;
<a name="l00108"></a><a class="code" href="structDBusAuthMechanismHandler.html#m3">00108</a> DBusAuthDecodeFunction server_decode_func;
<a name="l00109"></a><a class="code" href="structDBusAuthMechanismHandler.html#m4">00109</a> DBusAuthShutdownFunction server_shutdown_func;
<a name="l00110"></a><a class="code" href="structDBusAuthMechanismHandler.html#m5">00110</a> DBusInitialResponseFunction client_initial_response_func;
<a name="l00111"></a><a class="code" href="structDBusAuthMechanismHandler.html#m6">00111</a> DBusAuthDataFunction client_data_func;
<a name="l00112"></a><a class="code" href="structDBusAuthMechanismHandler.html#m7">00112</a> DBusAuthEncodeFunction client_encode_func;
<a name="l00113"></a><a class="code" href="structDBusAuthMechanismHandler.html#m8">00113</a> DBusAuthDecodeFunction client_decode_func;
<a name="l00114"></a><a class="code" href="structDBusAuthMechanismHandler.html#m9">00114</a> DBusAuthShutdownFunction client_shutdown_func;
00115 } <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a>;
00116
<a name="l00120"></a><a class="code" href="group__DBusAuthInternals.html#a62">00120</a> <font class="keyword">typedef</font> <font class="keyword">enum</font> {
00121 DBUS_AUTH_COMMAND_AUTH,
00122 DBUS_AUTH_COMMAND_CANCEL,
00123 DBUS_AUTH_COMMAND_DATA,
00124 DBUS_AUTH_COMMAND_BEGIN,
00125 DBUS_AUTH_COMMAND_REJECTED,
00126 DBUS_AUTH_COMMAND_OK,
00127 DBUS_AUTH_COMMAND_ERROR,
00128 DBUS_AUTH_COMMAND_UNKNOWN
00129 } DBusAuthCommand;
00130
<a name="l00136"></a><a class="code" href="group__DBusAuthInternals.html#a5">00136</a> <font class="keyword">typedef</font> dbus_bool_t (* DBusAuthStateFunction) (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00137 DBusAuthCommand command,
00138 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args);
00139
<a name="l00143"></a><a class="code" href="structDBusAuthStateData.html">00143</a> <font class="keyword">typedef</font> <font class="keyword">struct</font>
00144 <font class="keyword"></font>{
<a name="l00145"></a><a class="code" href="structDBusAuthStateData.html#m0">00145</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *name;
<a name="l00146"></a><a class="code" href="structDBusAuthStateData.html#m1">00146</a> DBusAuthStateFunction handler;
00147 } <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a>;
00148
<a name="l00152"></a><a class="code" href="structDBusAuth.html">00152</a> <font class="keyword">struct </font><a class="code" href="structDBusAuth.html">DBusAuth</a>
00153 {
<a name="l00154"></a><a class="code" href="structDBusAuth.html#m0">00154</a> <font class="keywordtype">int</font> <a class="code" href="structDBusAuth.html#m0">refcount</a>;
<a name="l00155"></a><a class="code" href="structDBusAuth.html#m1">00155</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="structDBusAuth.html#m1">side</a>;
<a name="l00157"></a><a class="code" href="structDBusAuth.html#m2">00157</a> <a class="code" href="structDBusString.html">DBusString</a> <a class="code" href="structDBusAuth.html#m2">incoming</a>;
<a name="l00158"></a><a class="code" href="structDBusAuth.html#m3">00158</a> <a class="code" href="structDBusString.html">DBusString</a> <a class="code" href="structDBusAuth.html#m3">outgoing</a>;
<a name="l00160"></a><a class="code" href="structDBusAuth.html#m4">00160</a> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> *<a class="code" href="structDBusAuth.html#m4">state</a>;
<a name="l00162"></a><a class="code" href="structDBusAuth.html#m5">00162</a> <font class="keyword">const</font> <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a> *<a class="code" href="structDBusAuth.html#m5">mech</a>;
<a name="l00164"></a><a class="code" href="structDBusAuth.html#m6">00164</a> <a class="code" href="structDBusString.html">DBusString</a> <a class="code" href="structDBusAuth.html#m6">identity</a>;
<a name="l00168"></a><a class="code" href="structDBusAuth.html#m7">00168</a> <a class="code" href="structDBusCredentials.html">DBusCredentials</a> <a class="code" href="structDBusAuth.html#m7">credentials</a>;
<a name="l00172"></a><a class="code" href="structDBusAuth.html#m8">00172</a> <a class="code" href="structDBusCredentials.html">DBusCredentials</a> <a class="code" href="structDBusAuth.html#m8">authorized_identity</a>;
<a name="l00174"></a><a class="code" href="structDBusAuth.html#m9">00174</a> <a class="code" href="structDBusCredentials.html">DBusCredentials</a> <a class="code" href="structDBusAuth.html#m9">desired_identity</a>;
<a name="l00176"></a><a class="code" href="structDBusAuth.html#m10">00176</a> <a class="code" href="structDBusString.html">DBusString</a> <a class="code" href="structDBusAuth.html#m10">context</a>;
<a name="l00177"></a><a class="code" href="structDBusAuth.html#m11">00177</a> <a class="code" href="structDBusKeyring.html">DBusKeyring</a> *<a class="code" href="structDBusAuth.html#m11">keyring</a>;
<a name="l00178"></a><a class="code" href="structDBusAuth.html#m12">00178</a> <font class="keywordtype">int</font> <a class="code" href="structDBusAuth.html#m12">cookie_id</a>;
<a name="l00179"></a><a class="code" href="structDBusAuth.html#m13">00179</a> <a class="code" href="structDBusString.html">DBusString</a> <a class="code" href="structDBusAuth.html#m13">challenge</a>;
<a name="l00181"></a><a class="code" href="structDBusAuth.html#m14">00181</a> <font class="keywordtype">char</font> **<a class="code" href="structDBusAuth.html#m14">allowed_mechs</a>;
<a name="l00185"></a><a class="code" href="structDBusAuth.html#m15">00185</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> <a class="code" href="structDBusAuth.html#m15">needed_memory</a> : 1;
<a name="l00188"></a><a class="code" href="structDBusAuth.html#m16">00188</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> <a class="code" href="structDBusAuth.html#m16">already_got_mechanisms</a> : 1;
<a name="l00189"></a><a class="code" href="structDBusAuth.html#m17">00189</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> <a class="code" href="structDBusAuth.html#m17">already_asked_for_initial_response</a> : 1;
<a name="l00190"></a><a class="code" href="structDBusAuth.html#m18">00190</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> <a class="code" href="structDBusAuth.html#m18">buffer_outstanding</a> : 1;
00191 };
00192
<a name="l00196"></a><a class="code" href="structDBusAuthClient.html">00196</a> <font class="keyword">typedef</font> <font class="keyword">struct</font>
00197 <font class="keyword"></font>{
<a name="l00198"></a><a class="code" href="structDBusAuthClient.html#m0">00198</a> <a class="code" href="structDBusAuth.html">DBusAuth</a> base;
<a name="l00200"></a><a class="code" href="structDBusAuthClient.html#m1">00200</a> <a class="code" href="structDBusList.html">DBusList</a> *mechs_to_try;
00202 } <a class="code" href="structDBusAuthClient.html">DBusAuthClient</a>;
00203
<a name="l00207"></a><a class="code" href="structDBusAuthServer.html">00207</a> <font class="keyword">typedef</font> <font class="keyword">struct</font>
00208 <font class="keyword"></font>{
<a name="l00209"></a><a class="code" href="structDBusAuthServer.html#m0">00209</a> <a class="code" href="structDBusAuth.html">DBusAuth</a> base;
<a name="l00211"></a><a class="code" href="structDBusAuthServer.html#m1">00211</a> <font class="keywordtype">int</font> failures;
<a name="l00212"></a><a class="code" href="structDBusAuthServer.html#m2">00212</a> <font class="keywordtype">int</font> max_failures;
00214 } <a class="code" href="structDBusAuthServer.html">DBusAuthServer</a>;
00215
00216 <font class="keyword">static</font> <font class="keywordtype">void</font> goto_state (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00217 <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> *new_state);
00218 <font class="keyword">static</font> dbus_bool_t send_auth (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00219 <font class="keyword">const</font> <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a> *mech);
00220 <font class="keyword">static</font> dbus_bool_t send_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00221 <a class="code" href="structDBusString.html">DBusString</a> *data);
00222 <font class="keyword">static</font> dbus_bool_t send_rejected (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth);
00223 <font class="keyword">static</font> dbus_bool_t send_error (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00224 <font class="keyword">const</font> <font class="keywordtype">char</font> *message);
00225 <font class="keyword">static</font> dbus_bool_t send_ok (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth);
00226 <font class="keyword">static</font> dbus_bool_t send_begin (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth);
00227 <font class="keyword">static</font> dbus_bool_t send_cancel (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth);
00228
00233 <font class="keyword">static</font> dbus_bool_t handle_server_state_waiting_for_auth (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00234 DBusAuthCommand command,
00235 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args);
00236 <font class="keyword">static</font> dbus_bool_t handle_server_state_waiting_for_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00237 DBusAuthCommand command,
00238 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args);
00239 <font class="keyword">static</font> dbus_bool_t handle_server_state_waiting_for_begin (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00240 DBusAuthCommand command,
00241 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args);
00242
00243 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> server_state_waiting_for_auth = {
00244 <font class="stringliteral">"WaitingForAuth"</font>, handle_server_state_waiting_for_auth
00245 };
00246 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> server_state_waiting_for_data = {
00247 <font class="stringliteral">"WaitingForData"</font>, handle_server_state_waiting_for_data
00248 };
00249 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> server_state_waiting_for_begin = {
00250 <font class="stringliteral">"WaitingForBegin"</font>, handle_server_state_waiting_for_begin
00251 };
00252
00257 <font class="keyword">static</font> dbus_bool_t handle_client_state_waiting_for_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00258 DBusAuthCommand command,
00259 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args);
00260 <font class="keyword">static</font> dbus_bool_t handle_client_state_waiting_for_ok (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00261 DBusAuthCommand command,
00262 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args);
00263 <font class="keyword">static</font> dbus_bool_t handle_client_state_waiting_for_reject (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00264 DBusAuthCommand command,
00265 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args);
00266
00267 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> client_state_need_send_auth = {
00268 <font class="stringliteral">"NeedSendAuth"</font>, NULL
00269 };
00270 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> client_state_waiting_for_data = {
00271 <font class="stringliteral">"WaitingForData"</font>, handle_client_state_waiting_for_data
00272 };
00273 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> client_state_waiting_for_ok = {
00274 <font class="stringliteral">"WaitingForOK"</font>, handle_client_state_waiting_for_ok
00275 };
00276 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> client_state_waiting_for_reject = {
00277 <font class="stringliteral">"WaitingForReject"</font>, handle_client_state_waiting_for_reject
00278 };
00279
00284 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> common_state_authenticated = {
00285 <font class="stringliteral">"Authenticated"</font>, NULL
00286 };
00287
00288 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> common_state_need_disconnect = {
00289 <font class="stringliteral">"NeedDisconnect"</font>, NULL
00290 };
00291
00292 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font> auth_side_client[] = <font class="stringliteral">"client"</font>;
00293 <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font> auth_side_server[] = <font class="stringliteral">"server"</font>;
<a name="l00298"></a><a class="code" href="group__DBusAuthInternals.html#a56">00298</a> <font class="preprocessor">#define DBUS_AUTH_IS_SERVER(auth) ((auth)->side == auth_side_server)</font>
00299 <font class="preprocessor"></font>
<a name="l00303"></a><a class="code" href="group__DBusAuthInternals.html#a57">00303</a> <font class="preprocessor">#define DBUS_AUTH_IS_CLIENT(auth) ((auth)->side == auth_side_client)</font>
00304 <font class="preprocessor"></font>
<a name="l00308"></a><a class="code" href="group__DBusAuthInternals.html#a58">00308</a> <font class="preprocessor">#define DBUS_AUTH_CLIENT(auth) ((DBusAuthClient*)(auth))</font>
00309 <font class="preprocessor"></font>
<a name="l00313"></a><a class="code" href="group__DBusAuthInternals.html#a59">00313</a> <font class="preprocessor">#define DBUS_AUTH_SERVER(auth) ((DBusAuthServer*)(auth))</font>
00314 <font class="preprocessor"></font>
<a name="l00320"></a><a class="code" href="group__DBusAuthInternals.html#a60">00320</a> <font class="preprocessor">#define DBUS_AUTH_NAME(auth) ((auth)->side)</font>
00321 <font class="preprocessor"></font>
00322 <font class="keyword">static</font> <a class="code" href="structDBusAuth.html">DBusAuth</a>*
00323 _dbus_auth_new (<font class="keywordtype">int</font> size)
00324 {
00325 <a class="code" href="structDBusAuth.html">DBusAuth</a> *auth;
00326
00327 auth = dbus_malloc0 (size);
00328 <font class="keywordflow">if</font> (auth == NULL)
00329 <font class="keywordflow">return</font> NULL;
00330
00331 auth-><a class="code" href="structDBusAuth.html#m0">refcount</a> = 1;
00332
00333 _dbus_credentials_clear (&auth-><a class="code" href="structDBusAuth.html#m7">credentials</a>);
00334 _dbus_credentials_clear (&auth-><a class="code" href="structDBusAuth.html#m8">authorized_identity</a>);
00335 _dbus_credentials_clear (&auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>);
00336
00337 auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> = NULL;
00338 auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a> = -1;
00339
00340 <font class="comment">/* note that we don't use the max string length feature,</font>
00341 <font class="comment"> * because you can't use that feature if you're going to</font>
00342 <font class="comment"> * try to recover from out-of-memory (it creates</font>
00343 <font class="comment"> * what looks like unrecoverable inability to alloc</font>
00344 <font class="comment"> * more space in the string). But we do handle</font>
00345 <font class="comment"> * overlong buffers in _dbus_auth_do_work().</font>
00346 <font class="comment"> */</font>
00347
00348 <font class="keywordflow">if</font> (!_dbus_string_init (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>))
00349 <font class="keywordflow">goto</font> enomem_0;
00350
00351 <font class="keywordflow">if</font> (!_dbus_string_init (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>))
00352 <font class="keywordflow">goto</font> enomem_1;
00353
00354 <font class="keywordflow">if</font> (!_dbus_string_init (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>))
00355 <font class="keywordflow">goto</font> enomem_2;
00356
00357 <font class="keywordflow">if</font> (!_dbus_string_init (&auth-><a class="code" href="structDBusAuth.html#m10">context</a>))
00358 <font class="keywordflow">goto</font> enomem_3;
00359
00360 <font class="keywordflow">if</font> (!_dbus_string_init (&auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>))
00361 <font class="keywordflow">goto</font> enomem_4;
00362
00363 <font class="comment">/* default context if none is specified */</font>
00364 <font class="keywordflow">if</font> (!_dbus_string_append (&auth-><a class="code" href="structDBusAuth.html#m10">context</a>, <font class="stringliteral">"org_freedesktop_general"</font>))
00365 <font class="keywordflow">goto</font> enomem_5;
00366
00367 <font class="keywordflow">return</font> auth;
00368
00369 enomem_5:
00370 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>);
00371 enomem_4:
00372 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m10">context</a>);
00373 enomem_3:
00374 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>);
00375 enomem_2:
00376 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>);
00377 enomem_1:
00378 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>);
00379 enomem_0:
00380 dbus_free (auth);
00381 <font class="keywordflow">return</font> NULL;
00382 }
00383
00384 <font class="keyword">static</font> <font class="keywordtype">void</font>
00385 shutdown_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
00386 {
00387 <font class="comment">/* Cancel any auth */</font>
00388 auth-><a class="code" href="structDBusAuth.html#m17">already_asked_for_initial_response</a> = FALSE;
00389 _dbus_string_set_length (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>, 0);
00390
00391 _dbus_credentials_clear (&auth-><a class="code" href="structDBusAuth.html#m8">authorized_identity</a>);
00392 _dbus_credentials_clear (&auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>);
00393
00394 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m5">mech</a> != NULL)
00395 {
00396 _dbus_verbose (<font class="stringliteral">"%s: Shutting down mechanism %s\n"</font>,
00397 DBUS_AUTH_NAME (auth), auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m0">mechanism</a>);
00398
00399 <font class="keywordflow">if</font> (DBUS_AUTH_IS_CLIENT (auth))
00400 (* auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m9">client_shutdown_func</a>) (auth);
00401 <font class="keywordflow">else</font>
00402 (* auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m4">server_shutdown_func</a>) (auth);
00403
00404 auth-><a class="code" href="structDBusAuth.html#m5">mech</a> = NULL;
00405 }
00406 }
00407
00408 <font class="comment">/* Returns TRUE but with an empty string hash if the</font>
00409 <font class="comment"> * cookie_id isn't known. As with all this code</font>
00410 <font class="comment"> * TRUE just means we had enough memory.</font>
00411 <font class="comment"> */</font>
00412 <font class="keyword">static</font> dbus_bool_t
00413 sha1_compute_hash (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00414 <font class="keywordtype">int</font> cookie_id,
00415 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *server_challenge,
00416 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *client_challenge,
00417 <a class="code" href="structDBusString.html">DBusString</a> *hash)
00418 {
00419 <a class="code" href="structDBusString.html">DBusString</a> cookie;
00420 <a class="code" href="structDBusString.html">DBusString</a> to_hash;
00421 dbus_bool_t retval;
00422
00423 _dbus_assert (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> != NULL);
00424
00425 retval = FALSE;
00426
00427 <font class="keywordflow">if</font> (!_dbus_string_init (&cookie))
00428 <font class="keywordflow">return</font> FALSE;
00429
00430 <font class="keywordflow">if</font> (!_dbus_keyring_get_hex_key (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a>, cookie_id,
00431 &cookie))
00432 <font class="keywordflow">goto</font> out_0;
00433
00434 <font class="keywordflow">if</font> (_dbus_string_get_length (&cookie) == 0)
00435 {
00436 retval = TRUE;
00437 <font class="keywordflow">goto</font> out_0;
00438 }
00439
00440 <font class="keywordflow">if</font> (!_dbus_string_init (&to_hash))
00441 <font class="keywordflow">goto</font> out_0;
00442
00443 <font class="keywordflow">if</font> (!_dbus_string_copy (server_challenge, 0,
00444 &to_hash, _dbus_string_get_length (&to_hash)))
00445 <font class="keywordflow">goto</font> out_1;
00446
00447 <font class="keywordflow">if</font> (!_dbus_string_append (&to_hash, <font class="stringliteral">":"</font>))
00448 <font class="keywordflow">goto</font> out_1;
00449
00450 <font class="keywordflow">if</font> (!_dbus_string_copy (client_challenge, 0,
00451 &to_hash, _dbus_string_get_length (&to_hash)))
00452 <font class="keywordflow">goto</font> out_1;
00453
00454 <font class="keywordflow">if</font> (!_dbus_string_append (&to_hash, <font class="stringliteral">":"</font>))
00455 <font class="keywordflow">goto</font> out_1;
00456
00457 <font class="keywordflow">if</font> (!_dbus_string_copy (&cookie, 0,
00458 &to_hash, _dbus_string_get_length (&to_hash)))
00459 <font class="keywordflow">goto</font> out_1;
00460
00461 <font class="keywordflow">if</font> (!_dbus_sha_compute (&to_hash, hash))
00462 <font class="keywordflow">goto</font> out_1;
00463
00464 retval = TRUE;
00465
00466 out_1:
00467 _dbus_string_zero (&to_hash);
00468 _dbus_string_free (&to_hash);
00469 out_0:
00470 _dbus_string_zero (&cookie);
00471 _dbus_string_free (&cookie);
00472 <font class="keywordflow">return</font> retval;
00473 }
00474
<a name="l00479"></a><a class="code" href="group__DBusAuthInternals.html#a61">00479</a> <font class="preprocessor">#define N_CHALLENGE_BYTES (128/8)</font>
00480 <font class="preprocessor"></font>
00481 <font class="keyword">static</font> dbus_bool_t
00482 sha1_handle_first_client_response (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00483 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data)
00484 {
00485 <font class="comment">/* We haven't sent a challenge yet, we're expecting a desired</font>
00486 <font class="comment"> * username from the client.</font>
00487 <font class="comment"> */</font>
00488 <a class="code" href="structDBusString.html">DBusString</a> tmp;
00489 <a class="code" href="structDBusString.html">DBusString</a> tmp2;
00490 dbus_bool_t retval;
00491 <a class="code" href="structDBusError.html">DBusError</a> error;
00492
00493 retval = FALSE;
00494
00495 _dbus_string_set_length (&auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>, 0);
00496
00497 <font class="keywordflow">if</font> (_dbus_string_get_length (data) > 0)
00498 {
00499 <font class="keywordflow">if</font> (_dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>) > 0)
00500 {
00501 <font class="comment">/* Tried to send two auth identities, wtf */</font>
00502 _dbus_verbose (<font class="stringliteral">"%s: client tried to send auth identity, but we already have one\n"</font>,
00503 DBUS_AUTH_NAME (auth));
00504 <font class="keywordflow">return</font> send_rejected (auth);
00505 }
00506 <font class="keywordflow">else</font>
00507 {
00508 <font class="comment">/* this is our auth identity */</font>
00509 <font class="keywordflow">if</font> (!_dbus_string_copy (data, 0, &auth-><a class="code" href="structDBusAuth.html#m6">identity</a>, 0))
00510 <font class="keywordflow">return</font> FALSE;
00511 }
00512 }
00513
00514 <font class="keywordflow">if</font> (!_dbus_credentials_from_username (data, &auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>))
00515 {
00516 _dbus_verbose (<font class="stringliteral">"%s: Did not get a valid username from client\n"</font>,
00517 DBUS_AUTH_NAME (auth));
00518 <font class="keywordflow">return</font> send_rejected (auth);
00519 }
00520
00521 <font class="keywordflow">if</font> (!_dbus_string_init (&tmp))
00522 <font class="keywordflow">return</font> FALSE;
00523
00524 <font class="keywordflow">if</font> (!_dbus_string_init (&tmp2))
00525 {
00526 _dbus_string_free (&tmp);
00527 <font class="keywordflow">return</font> FALSE;
00528 }
00529
00530 <font class="comment">/* we cache the keyring for speed, so here we drop it if it's the</font>
00531 <font class="comment"> * wrong one. FIXME caching the keyring here is useless since we use</font>
00532 <font class="comment"> * a different DBusAuth for every connection.</font>
00533 <font class="comment"> */</font>
00534 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> &&
00535 !_dbus_keyring_is_for_user (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a>,
00536 data))
00537 {
00538 _dbus_keyring_unref (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a>);
00539 auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> = NULL;
00540 }
00541
00542 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> == NULL)
00543 {
00544 <a class="code" href="structDBusError.html">DBusError</a> error;
00545
00546 dbus_error_init (&error);
00547 auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> = _dbus_keyring_new_homedir (data,
00548 &auth-><a class="code" href="structDBusAuth.html#m10">context</a>,
00549 &error);
00550
00551 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> == NULL)
00552 {
00553 <font class="keywordflow">if</font> (dbus_error_has_name (&error,
00554 DBUS_ERROR_NO_MEMORY))
00555 {
00556 dbus_error_free (&error);
00557 <font class="keywordflow">goto</font> out;
00558 }
00559 <font class="keywordflow">else</font>
00560 {
00561 _DBUS_ASSERT_ERROR_IS_SET (&error);
00562 _dbus_verbose (<font class="stringliteral">"%s: Error loading keyring: %s\n"</font>,
00563 DBUS_AUTH_NAME (auth), error.<a class="code" href="structDBusError.html#m1">message</a>);
00564 <font class="keywordflow">if</font> (send_rejected (auth))
00565 retval = TRUE; <font class="comment">/* retval is only about mem */</font>
00566 dbus_error_free (&error);
00567 <font class="keywordflow">goto</font> out;
00568 }
00569 }
00570 <font class="keywordflow">else</font>
00571 {
00572 _dbus_assert (!dbus_error_is_set (&error));
00573 }
00574 }
00575
00576 _dbus_assert (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> != NULL);
00577
00578 dbus_error_init (&error);
00579 auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a> = _dbus_keyring_get_best_key (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a>, &error);
00580 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a> < 0)
00581 {
00582 _DBUS_ASSERT_ERROR_IS_SET (&error);
00583 _dbus_verbose (<font class="stringliteral">"%s: Could not get a cookie ID to send to client: %s\n"</font>,
00584 DBUS_AUTH_NAME (auth), error.<a class="code" href="structDBusError.html#m1">message</a>);
00585 <font class="keywordflow">if</font> (send_rejected (auth))
00586 retval = TRUE;
00587 dbus_error_free (&error);
00588 <font class="keywordflow">goto</font> out;
00589 }
00590 <font class="keywordflow">else</font>
00591 {
00592 _dbus_assert (!dbus_error_is_set (&error));
00593 }
00594
00595 <font class="keywordflow">if</font> (!_dbus_string_copy (&auth-><a class="code" href="structDBusAuth.html#m10">context</a>, 0,
00596 &tmp2, _dbus_string_get_length (&tmp2)))
00597 <font class="keywordflow">goto</font> out;
00598
00599 <font class="keywordflow">if</font> (!_dbus_string_append (&tmp2, <font class="stringliteral">" "</font>))
00600 <font class="keywordflow">goto</font> out;
00601
00602 <font class="keywordflow">if</font> (!_dbus_string_append_int (&tmp2, auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a>))
00603 <font class="keywordflow">goto</font> out;
00604
00605 <font class="keywordflow">if</font> (!_dbus_string_append (&tmp2, <font class="stringliteral">" "</font>))
00606 <font class="keywordflow">goto</font> out;
00607
00608 <font class="keywordflow">if</font> (!_dbus_generate_random_bytes (&tmp, N_CHALLENGE_BYTES))
00609 <font class="keywordflow">goto</font> out;
00610
00611 _dbus_string_set_length (&auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>, 0);
00612 <font class="keywordflow">if</font> (!_dbus_string_hex_encode (&tmp, 0, &auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>, 0))
00613 <font class="keywordflow">goto</font> out;
00614
00615 <font class="keywordflow">if</font> (!_dbus_string_hex_encode (&tmp, 0, &tmp2,
00616 _dbus_string_get_length (&tmp2)))
00617 <font class="keywordflow">goto</font> out;
00618
00619 <font class="keywordflow">if</font> (!send_data (auth, &tmp2))
00620 <font class="keywordflow">goto</font> out;
00621
00622 goto_state (auth, &server_state_waiting_for_data);
00623 retval = TRUE;
00624
00625 out:
00626 _dbus_string_zero (&tmp);
00627 _dbus_string_free (&tmp);
00628 _dbus_string_zero (&tmp2);
00629 _dbus_string_free (&tmp2);
00630
00631 <font class="keywordflow">return</font> retval;
00632 }
00633
00634 <font class="keyword">static</font> dbus_bool_t
00635 sha1_handle_second_client_response (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00636 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data)
00637 {
00638 <font class="comment">/* We are expecting a response which is the hex-encoded client</font>
00639 <font class="comment"> * challenge, space, then SHA-1 hash of the concatenation of our</font>
00640 <font class="comment"> * challenge, ":", client challenge, ":", secret key, all</font>
00641 <font class="comment"> * hex-encoded.</font>
00642 <font class="comment"> */</font>
00643 <font class="keywordtype">int</font> i;
00644 <a class="code" href="structDBusString.html">DBusString</a> client_challenge;
00645 <a class="code" href="structDBusString.html">DBusString</a> client_hash;
00646 dbus_bool_t retval;
00647 <a class="code" href="structDBusString.html">DBusString</a> correct_hash;
00648
00649 retval = FALSE;
00650
00651 <font class="keywordflow">if</font> (!_dbus_string_find_blank (data, 0, &i))
00652 {
00653 _dbus_verbose (<font class="stringliteral">"%s: no space separator in client response\n"</font>,
00654 DBUS_AUTH_NAME (auth));
00655 <font class="keywordflow">return</font> send_rejected (auth);
00656 }
00657
00658 <font class="keywordflow">if</font> (!_dbus_string_init (&client_challenge))
00659 <font class="keywordflow">goto</font> out_0;
00660
00661 <font class="keywordflow">if</font> (!_dbus_string_init (&client_hash))
00662 <font class="keywordflow">goto</font> out_1;
00663
00664 <font class="keywordflow">if</font> (!_dbus_string_copy_len (data, 0, i, &client_challenge,
00665 0))
00666 <font class="keywordflow">goto</font> out_2;
00667
00668 _dbus_string_skip_blank (data, i, &i);
00669
00670 <font class="keywordflow">if</font> (!_dbus_string_copy_len (data, i,
00671 _dbus_string_get_length (data) - i,
00672 &client_hash,
00673 0))
00674 <font class="keywordflow">goto</font> out_2;
00675
00676 <font class="keywordflow">if</font> (_dbus_string_get_length (&client_challenge) == 0 ||
00677 _dbus_string_get_length (&client_hash) == 0)
00678 {
00679 _dbus_verbose (<font class="stringliteral">"%s: zero-length client challenge or hash\n"</font>,
00680 DBUS_AUTH_NAME (auth));
00681 <font class="keywordflow">if</font> (send_rejected (auth))
00682 retval = TRUE;
00683 <font class="keywordflow">goto</font> out_2;
00684 }
00685
00686 <font class="keywordflow">if</font> (!_dbus_string_init (&correct_hash))
00687 <font class="keywordflow">goto</font> out_2;
00688
00689 <font class="keywordflow">if</font> (!sha1_compute_hash (auth, auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a>,
00690 &auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>,
00691 &client_challenge,
00692 &correct_hash))
00693 <font class="keywordflow">goto</font> out_3;
00694
00695 <font class="comment">/* if cookie_id was invalid, then we get an empty hash */</font>
00696 <font class="keywordflow">if</font> (_dbus_string_get_length (&correct_hash) == 0)
00697 {
00698 <font class="keywordflow">if</font> (send_rejected (auth))
00699 retval = TRUE;
00700 <font class="keywordflow">goto</font> out_3;
00701 }
00702
00703 <font class="keywordflow">if</font> (!_dbus_string_equal (&client_hash, &correct_hash))
00704 {
00705 <font class="keywordflow">if</font> (send_rejected (auth))
00706 retval = TRUE;
00707 <font class="keywordflow">goto</font> out_3;
00708 }
00709
00710 <font class="keywordflow">if</font> (!send_ok (auth))
00711 <font class="keywordflow">goto</font> out_3;
00712
00713 _dbus_verbose (<font class="stringliteral">"%s: authenticated client with UID "</font>DBUS_UID_FORMAT<font class="stringliteral">" using DBUS_COOKIE_SHA1\n"</font>,
00714 DBUS_AUTH_NAME (auth), auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>);
00715
00716 auth-><a class="code" href="structDBusAuth.html#m8">authorized_identity</a> = auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>;
00717 retval = TRUE;
00718
00719 out_3:
00720 _dbus_string_zero (&correct_hash);
00721 _dbus_string_free (&correct_hash);
00722 out_2:
00723 _dbus_string_zero (&client_hash);
00724 _dbus_string_free (&client_hash);
00725 out_1:
00726 _dbus_string_free (&client_challenge);
00727 out_0:
00728 <font class="keywordflow">return</font> retval;
00729 }
00730
00731 <font class="keyword">static</font> dbus_bool_t
00732 handle_server_data_cookie_sha1_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00733 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data)
00734 {
00735 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a> < 0)
00736 <font class="keywordflow">return</font> sha1_handle_first_client_response (auth, data);
00737 <font class="keywordflow">else</font>
00738 <font class="keywordflow">return</font> sha1_handle_second_client_response (auth, data);
00739 }
00740
00741 <font class="keyword">static</font> <font class="keywordtype">void</font>
00742 handle_server_shutdown_cookie_sha1_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
00743 {
00744 auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a> = -1;
00745 _dbus_string_set_length (&auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>, 0);
00746 }
00747
00748 <font class="keyword">static</font> dbus_bool_t
00749 handle_client_initial_response_cookie_sha1_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00750 <a class="code" href="structDBusString.html">DBusString</a> *response)
00751 {
00752 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *username;
00753 dbus_bool_t retval;
00754
00755 retval = FALSE;
00756
00757 <font class="keywordflow">if</font> (!_dbus_username_from_current_process (&username))
00758 <font class="keywordflow">goto</font> out_0;
00759
00760 <font class="keywordflow">if</font> (!_dbus_string_hex_encode (username, 0,
00761 response,
00762 _dbus_string_get_length (response)))
00763 <font class="keywordflow">goto</font> out_0;
00764
00765 retval = TRUE;
00766
00767 out_0:
00768 <font class="keywordflow">return</font> retval;
00769 }
00770
00771 <font class="keyword">static</font> dbus_bool_t
00772 handle_client_data_cookie_sha1_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00773 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data)
00774 {
00775 <font class="comment">/* The data we get from the server should be the cookie context</font>
00776 <font class="comment"> * name, the cookie ID, and the server challenge, separated by</font>
00777 <font class="comment"> * spaces. We send back our challenge string and the correct hash.</font>
00778 <font class="comment"> */</font>
00779 dbus_bool_t retval;
00780 <a class="code" href="structDBusString.html">DBusString</a> context;
00781 <a class="code" href="structDBusString.html">DBusString</a> cookie_id_str;
00782 <a class="code" href="structDBusString.html">DBusString</a> server_challenge;
00783 <a class="code" href="structDBusString.html">DBusString</a> client_challenge;
00784 <a class="code" href="structDBusString.html">DBusString</a> correct_hash;
00785 <a class="code" href="structDBusString.html">DBusString</a> tmp;
00786 <font class="keywordtype">int</font> i, j;
00787 <font class="keywordtype">long</font> val;
00788
00789 retval = FALSE;
00790
00791 <font class="keywordflow">if</font> (!_dbus_string_find_blank (data, 0, &i))
00792 {
00793 <font class="keywordflow">if</font> (send_error (auth,
00794 <font class="stringliteral">"Server did not send context/ID/challenge properly"</font>))
00795 retval = TRUE;
00796 <font class="keywordflow">goto</font> out_0;
00797 }
00798
00799 <font class="keywordflow">if</font> (!_dbus_string_init (&context))
00800 <font class="keywordflow">goto</font> out_0;
00801
00802 <font class="keywordflow">if</font> (!_dbus_string_copy_len (data, 0, i,
00803 &context, 0))
00804 <font class="keywordflow">goto</font> out_1;
00805
00806 _dbus_string_skip_blank (data, i, &i);
00807 <font class="keywordflow">if</font> (!_dbus_string_find_blank (data, i, &j))
00808 {
00809 <font class="keywordflow">if</font> (send_error (auth,
00810 <font class="stringliteral">"Server did not send context/ID/challenge properly"</font>))
00811 retval = TRUE;
00812 <font class="keywordflow">goto</font> out_1;
00813 }
00814
00815 <font class="keywordflow">if</font> (!_dbus_string_init (&cookie_id_str))
00816 <font class="keywordflow">goto</font> out_1;
00817
00818 <font class="keywordflow">if</font> (!_dbus_string_copy_len (data, i, j - i,
00819 &cookie_id_str, 0))
00820 <font class="keywordflow">goto</font> out_2;
00821
00822 <font class="keywordflow">if</font> (!_dbus_string_init (&server_challenge))
00823 <font class="keywordflow">goto</font> out_2;
00824
00825 i = j;
00826 _dbus_string_skip_blank (data, i, &i);
00827 j = _dbus_string_get_length (data);
00828
00829 <font class="keywordflow">if</font> (!_dbus_string_copy_len (data, i, j - i,
00830 &server_challenge, 0))
00831 <font class="keywordflow">goto</font> out_3;
00832
00833 <font class="keywordflow">if</font> (!_dbus_keyring_validate_context (&context))
00834 {
00835 <font class="keywordflow">if</font> (send_error (auth, <font class="stringliteral">"Server sent invalid cookie context"</font>))
00836 retval = TRUE;
00837 <font class="keywordflow">goto</font> out_3;
00838 }
00839
00840 <font class="keywordflow">if</font> (!_dbus_string_parse_int (&cookie_id_str, 0, &val, NULL))
00841 {
00842 <font class="keywordflow">if</font> (send_error (auth, <font class="stringliteral">"Could not parse cookie ID as an integer"</font>))
00843 retval = TRUE;
00844 <font class="keywordflow">goto</font> out_3;
00845 }
00846
00847 <font class="keywordflow">if</font> (_dbus_string_get_length (&server_challenge) == 0)
00848 {
00849 <font class="keywordflow">if</font> (send_error (auth, <font class="stringliteral">"Empty server challenge string"</font>))
00850 retval = TRUE;
00851 <font class="keywordflow">goto</font> out_3;
00852 }
00853
00854 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> == NULL)
00855 {
00856 <a class="code" href="structDBusError.html">DBusError</a> error;
00857
00858 dbus_error_init (&error);
00859 auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> = _dbus_keyring_new_homedir (NULL,
00860 &context,
00861 &error);
00862
00863 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> == NULL)
00864 {
00865 <font class="keywordflow">if</font> (dbus_error_has_name (&error,
00866 DBUS_ERROR_NO_MEMORY))
00867 {
00868 dbus_error_free (&error);
00869 <font class="keywordflow">goto</font> out_3;
00870 }
00871 <font class="keywordflow">else</font>
00872 {
00873 _DBUS_ASSERT_ERROR_IS_SET (&error);
00874
00875 _dbus_verbose (<font class="stringliteral">"%s: Error loading keyring: %s\n"</font>,
00876 DBUS_AUTH_NAME (auth), error.<a class="code" href="structDBusError.html#m1">message</a>);
00877
00878 <font class="keywordflow">if</font> (send_error (auth, <font class="stringliteral">"Could not load cookie file"</font>))
00879 retval = TRUE; <font class="comment">/* retval is only about mem */</font>
00880
00881 dbus_error_free (&error);
00882 <font class="keywordflow">goto</font> out_3;
00883 }
00884 }
00885 <font class="keywordflow">else</font>
00886 {
00887 _dbus_assert (!dbus_error_is_set (&error));
00888 }
00889 }
00890
00891 _dbus_assert (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a> != NULL);
00892
00893 <font class="keywordflow">if</font> (!_dbus_string_init (&tmp))
00894 <font class="keywordflow">goto</font> out_3;
00895
00896 <font class="keywordflow">if</font> (!_dbus_generate_random_bytes (&tmp, N_CHALLENGE_BYTES))
00897 <font class="keywordflow">goto</font> out_4;
00898
00899 <font class="keywordflow">if</font> (!_dbus_string_init (&client_challenge))
00900 <font class="keywordflow">goto</font> out_4;
00901
00902 <font class="keywordflow">if</font> (!_dbus_string_hex_encode (&tmp, 0, &client_challenge, 0))
00903 <font class="keywordflow">goto</font> out_5;
00904
00905 <font class="keywordflow">if</font> (!_dbus_string_init (&correct_hash))
00906 <font class="keywordflow">goto</font> out_5;
00907
00908 <font class="keywordflow">if</font> (!sha1_compute_hash (auth, val,
00909 &server_challenge,
00910 &client_challenge,
00911 &correct_hash))
00912 <font class="keywordflow">goto</font> out_6;
00913
00914 <font class="keywordflow">if</font> (_dbus_string_get_length (&correct_hash) == 0)
00915 {
00916 <font class="comment">/* couldn't find the cookie ID or something */</font>
00917 <font class="keywordflow">if</font> (send_error (auth, <font class="stringliteral">"Don't have the requested cookie ID"</font>))
00918 retval = TRUE;
00919 <font class="keywordflow">goto</font> out_6;
00920 }
00921
00922 _dbus_string_set_length (&tmp, 0);
00923
00924 <font class="keywordflow">if</font> (!_dbus_string_copy (&client_challenge, 0, &tmp,
00925 _dbus_string_get_length (&tmp)))
00926 <font class="keywordflow">goto</font> out_6;
00927
00928 <font class="keywordflow">if</font> (!_dbus_string_append (&tmp, <font class="stringliteral">" "</font>))
00929 <font class="keywordflow">goto</font> out_6;
00930
00931 <font class="keywordflow">if</font> (!_dbus_string_copy (&correct_hash, 0, &tmp,
00932 _dbus_string_get_length (&tmp)))
00933 <font class="keywordflow">goto</font> out_6;
00934
00935 <font class="keywordflow">if</font> (!send_data (auth, &tmp))
00936 <font class="keywordflow">goto</font> out_6;
00937
00938 retval = TRUE;
00939
00940 out_6:
00941 _dbus_string_zero (&correct_hash);
00942 _dbus_string_free (&correct_hash);
00943 out_5:
00944 _dbus_string_free (&client_challenge);
00945 out_4:
00946 _dbus_string_zero (&tmp);
00947 _dbus_string_free (&tmp);
00948 out_3:
00949 _dbus_string_free (&server_challenge);
00950 out_2:
00951 _dbus_string_free (&cookie_id_str);
00952 out_1:
00953 _dbus_string_free (&context);
00954 out_0:
00955 <font class="keywordflow">return</font> retval;
00956 }
00957
00958 <font class="keyword">static</font> <font class="keywordtype">void</font>
00959 handle_client_shutdown_cookie_sha1_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
00960 {
00961 auth-><a class="code" href="structDBusAuth.html#m12">cookie_id</a> = -1;
00962 _dbus_string_set_length (&auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>, 0);
00963 }
00964
00965 <font class="keyword">static</font> dbus_bool_t
00966 handle_server_data_external_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
00967 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data)
00968 {
00969 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m7">credentials</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a> == DBUS_UID_UNSET)
00970 {
00971 _dbus_verbose (<font class="stringliteral">"%s: no credentials, mechanism EXTERNAL can't authenticate\n"</font>,
00972 DBUS_AUTH_NAME (auth));
00973 <font class="keywordflow">return</font> send_rejected (auth);
00974 }
00975
00976 <font class="keywordflow">if</font> (_dbus_string_get_length (data) > 0)
00977 {
00978 <font class="keywordflow">if</font> (_dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>) > 0)
00979 {
00980 <font class="comment">/* Tried to send two auth identities, wtf */</font>
00981 _dbus_verbose (<font class="stringliteral">"%s: client tried to send auth identity, but we already have one\n"</font>,
00982 DBUS_AUTH_NAME (auth));
00983 <font class="keywordflow">return</font> send_rejected (auth);
00984 }
00985 <font class="keywordflow">else</font>
00986 {
00987 <font class="comment">/* this is our auth identity */</font>
00988 <font class="keywordflow">if</font> (!_dbus_string_copy (data, 0, &auth-><a class="code" href="structDBusAuth.html#m6">identity</a>, 0))
00989 <font class="keywordflow">return</font> FALSE;
00990 }
00991 }
00992
00993 <font class="comment">/* Poke client for an auth identity, if none given */</font>
00994 <font class="keywordflow">if</font> (_dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>) == 0 &&
00995 !auth-><a class="code" href="structDBusAuth.html#m17">already_asked_for_initial_response</a>)
00996 {
00997 <font class="keywordflow">if</font> (send_data (auth, NULL))
00998 {
00999 _dbus_verbose (<font class="stringliteral">"%s: sending empty challenge asking client for auth identity\n"</font>,
01000 DBUS_AUTH_NAME (auth));
01001 auth-><a class="code" href="structDBusAuth.html#m17">already_asked_for_initial_response</a> = TRUE;
01002 <font class="keywordflow">return</font> TRUE;
01003 }
01004 <font class="keywordflow">else</font>
01005 <font class="keywordflow">return</font> FALSE;
01006 }
01007
01008 _dbus_credentials_clear (&auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>);
01009
01010 <font class="comment">/* If auth->identity is still empty here, then client</font>
01011 <font class="comment"> * responded with an empty string after we poked it for</font>
01012 <font class="comment"> * an initial response. This means to try to auth the</font>
01013 <font class="comment"> * identity provided in the credentials.</font>
01014 <font class="comment"> */</font>
01015 <font class="keywordflow">if</font> (_dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>) == 0)
01016 {
01017 auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a> = auth-><a class="code" href="structDBusAuth.html#m7">credentials</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>;
01018 }
01019 <font class="keywordflow">else</font>
01020 {
01021 <font class="keywordflow">if</font> (!_dbus_uid_from_string (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>,
01022 &auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>))
01023 {
01024 _dbus_verbose (<font class="stringliteral">"%s: could not get credentials from uid string\n"</font>,
01025 DBUS_AUTH_NAME (auth));
01026 <font class="keywordflow">return</font> send_rejected (auth);
01027 }
01028 }
01029
01030 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a> == DBUS_UID_UNSET)
01031 {
01032 _dbus_verbose (<font class="stringliteral">"%s: desired user %s is no good\n"</font>,
01033 DBUS_AUTH_NAME (auth),
01034 _dbus_string_get_const_data (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>));
01035 <font class="keywordflow">return</font> send_rejected (auth);
01036 }
01037
01038 <font class="keywordflow">if</font> (_dbus_credentials_match (&auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>,
01039 &auth-><a class="code" href="structDBusAuth.html#m7">credentials</a>))
01040 {
01041 <font class="comment">/* client has authenticated */</font>
01042 <font class="keywordflow">if</font> (!send_ok (auth))
01043 <font class="keywordflow">return</font> FALSE;
01044
01045 _dbus_verbose (<font class="stringliteral">"%s: authenticated client with UID "</font>DBUS_UID_FORMAT
01046 <font class="stringliteral">" matching socket credentials UID "</font>DBUS_UID_FORMAT<font class="stringliteral">"\n"</font>,
01047 DBUS_AUTH_NAME (auth),
01048 auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>,
01049 auth-><a class="code" href="structDBusAuth.html#m7">credentials</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>);
01050
01051 auth-><a class="code" href="structDBusAuth.html#m8">authorized_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a> = auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>;
01052
01053 <font class="keywordflow">return</font> TRUE;
01054 }
01055 <font class="keywordflow">else</font>
01056 {
01057 _dbus_verbose (<font class="stringliteral">"%s: credentials uid="</font>DBUS_UID_FORMAT
01058 <font class="stringliteral">" gid="</font>DBUS_GID_FORMAT
01059 <font class="stringliteral">" do not allow uid="</font>DBUS_UID_FORMAT
01060 <font class="stringliteral">" gid="</font>DBUS_GID_FORMAT<font class="stringliteral">"\n"</font>,
01061 DBUS_AUTH_NAME (auth),
01062 auth-><a class="code" href="structDBusAuth.html#m7">credentials</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>, auth-><a class="code" href="structDBusAuth.html#m7">credentials</a>.<a class="code" href="structDBusCredentials.html#m2">gid</a>,
01063 auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m1">uid</a>, auth-><a class="code" href="structDBusAuth.html#m9">desired_identity</a>.<a class="code" href="structDBusCredentials.html#m2">gid</a>);
01064 <font class="keywordflow">return</font> send_rejected (auth);
01065 }
01066 }
01067
01068 <font class="keyword">static</font> <font class="keywordtype">void</font>
01069 handle_server_shutdown_external_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01070 {
01071
01072 }
01073
01074 <font class="keyword">static</font> dbus_bool_t
01075 handle_client_initial_response_external_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01076 <a class="code" href="structDBusString.html">DBusString</a> *response)
01077 {
01078 <font class="comment">/* We always append our UID as an initial response, so the server</font>
01079 <font class="comment"> * doesn't have to send back an empty challenge to check whether we</font>
01080 <font class="comment"> * want to specify an identity. i.e. this avoids a round trip that</font>
01081 <font class="comment"> * the spec for the EXTERNAL mechanism otherwise requires.</font>
01082 <font class="comment"> */</font>
01083 <a class="code" href="structDBusString.html">DBusString</a> plaintext;
01084
01085 <font class="keywordflow">if</font> (!_dbus_string_init (&plaintext))
01086 <font class="keywordflow">return</font> FALSE;
01087
01088 <font class="keywordflow">if</font> (!_dbus_string_append_uint (&plaintext,
01089 _dbus_getuid ()))
01090 <font class="keywordflow">goto</font> failed;
01091
01092 <font class="keywordflow">if</font> (!_dbus_string_hex_encode (&plaintext, 0,
01093 response,
01094 _dbus_string_get_length (response)))
01095 <font class="keywordflow">goto</font> failed;
01096
01097 _dbus_string_free (&plaintext);
01098
01099 <font class="keywordflow">return</font> TRUE;
01100
01101 failed:
01102 _dbus_string_free (&plaintext);
01103 <font class="keywordflow">return</font> FALSE;
01104 }
01105
01106 <font class="keyword">static</font> dbus_bool_t
01107 handle_client_data_external_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01108 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *data)
01109 {
01110
01111 <font class="keywordflow">return</font> TRUE;
01112 }
01113
01114 <font class="keyword">static</font> <font class="keywordtype">void</font>
01115 handle_client_shutdown_external_mech (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01116 {
01117
01118 }
01119
01120 <font class="comment">/* Put mechanisms here in order of preference.</font>
01121 <font class="comment"> * What I eventually want to have is:</font>
01122 <font class="comment"> *</font>
01123 <font class="comment"> * - a mechanism that checks UNIX domain socket credentials</font>
01124 <font class="comment"> * - a simple magic cookie mechanism like X11 or ICE</font>
01125 <font class="comment"> * - mechanisms that chain to Cyrus SASL, so we can use anything it</font>
01126 <font class="comment"> * offers such as Kerberos, X509, whatever.</font>
01127 <font class="comment"> * </font>
01128 <font class="comment"> */</font>
01129 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a>
01130 all_mechanisms[] = {
01131 { <font class="stringliteral">"EXTERNAL"</font>,
01132 handle_server_data_external_mech,
01133 NULL, NULL,
01134 handle_server_shutdown_external_mech,
01135 handle_client_initial_response_external_mech,
01136 handle_client_data_external_mech,
01137 NULL, NULL,
01138 handle_client_shutdown_external_mech },
01139 { <font class="stringliteral">"DBUS_COOKIE_SHA1"</font>,
01140 handle_server_data_cookie_sha1_mech,
01141 NULL, NULL,
01142 handle_server_shutdown_cookie_sha1_mech,
01143 handle_client_initial_response_cookie_sha1_mech,
01144 handle_client_data_cookie_sha1_mech,
01145 NULL, NULL,
01146 handle_client_shutdown_cookie_sha1_mech },
01147 { NULL, NULL }
01148 };
01149
01150 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a>*
01151 find_mech (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *name,
01152 <font class="keywordtype">char</font> **allowed_mechs)
01153 {
01154 <font class="keywordtype">int</font> i;
01155
01156 <font class="keywordflow">if</font> (allowed_mechs != NULL &&
01157 !_dbus_string_array_contains ((<font class="keyword">const</font> <font class="keywordtype">char</font>**) allowed_mechs,
01158 _dbus_string_get_const_data (name)))
01159 <font class="keywordflow">return</font> NULL;
01160
01161 i = 0;
01162 <font class="keywordflow">while</font> (all_mechanisms[i].<a class="code" href="structDBusAuthMechanismHandler.html#m0">mechanism</a> != NULL)
01163 {
01164 <font class="keywordflow">if</font> (_dbus_string_equal_c_str (name,
01165 all_mechanisms[i].mechanism))
01166
01167 <font class="keywordflow">return</font> &all_mechanisms[i];
01168
01169 ++i;
01170 }
01171
01172 <font class="keywordflow">return</font> NULL;
01173 }
01174
01175 <font class="keyword">static</font> dbus_bool_t
01176 send_auth (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth, <font class="keyword">const</font> <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a> *mech)
01177 {
01178 <a class="code" href="structDBusString.html">DBusString</a> auth_command;
01179
01180 <font class="keywordflow">if</font> (!_dbus_string_init (&auth_command))
01181 <font class="keywordflow">return</font> FALSE;
01182
01183 <font class="keywordflow">if</font> (!_dbus_string_append (&auth_command,
01184 <font class="stringliteral">"AUTH "</font>))
01185 {
01186 _dbus_string_free (&auth_command);
01187 <font class="keywordflow">return</font> FALSE;
01188 }
01189
01190 <font class="keywordflow">if</font> (!_dbus_string_append (&auth_command,
01191 mech-><a class="code" href="structDBusAuthMechanismHandler.html#m0">mechanism</a>))
01192 {
01193 _dbus_string_free (&auth_command);
01194 <font class="keywordflow">return</font> FALSE;
01195 }
01196
01197 <font class="keywordflow">if</font> (mech-><a class="code" href="structDBusAuthMechanismHandler.html#m5">client_initial_response_func</a> != NULL)
01198 {
01199 <font class="keywordflow">if</font> (!_dbus_string_append (&auth_command, <font class="stringliteral">" "</font>))
01200 {
01201 _dbus_string_free (&auth_command);
01202 <font class="keywordflow">return</font> FALSE;
01203 }
01204
01205 <font class="keywordflow">if</font> (!(* mech-><a class="code" href="structDBusAuthMechanismHandler.html#m5">client_initial_response_func</a>) (auth, &auth_command))
01206 {
01207 _dbus_string_free (&auth_command);
01208 <font class="keywordflow">return</font> FALSE;
01209 }
01210 }
01211
01212 <font class="keywordflow">if</font> (!_dbus_string_append (&auth_command,
01213 <font class="stringliteral">"\r\n"</font>))
01214 {
01215 _dbus_string_free (&auth_command);
01216 <font class="keywordflow">return</font> FALSE;
01217 }
01218
01219 <font class="keywordflow">if</font> (!_dbus_string_copy (&auth_command, 0,
01220 &auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>,
01221 _dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>)))
01222 {
01223 _dbus_string_free (&auth_command);
01224 <font class="keywordflow">return</font> FALSE;
01225 }
01226
01227 _dbus_string_free (&auth_command);
01228 shutdown_mech (auth);
01229 auth-><a class="code" href="structDBusAuth.html#m5">mech</a> = mech;
01230 goto_state (auth, &client_state_waiting_for_data);
01231
01232 <font class="keywordflow">return</font> TRUE;
01233 }
01234
01235 <font class="keyword">static</font> dbus_bool_t
01236 send_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth, <a class="code" href="structDBusString.html">DBusString</a> *data)
01237 {
01238 <font class="keywordtype">int</font> old_len;
01239
01240 <font class="keywordflow">if</font> (data == NULL || _dbus_string_get_length (data) == 0)
01241 <font class="keywordflow">return</font> _dbus_string_append (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>, <font class="stringliteral">"DATA\r\n"</font>);
01242 <font class="keywordflow">else</font>
01243 {
01244 old_len = _dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>);
01245 <font class="keywordflow">if</font> (!_dbus_string_append (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>, <font class="stringliteral">"DATA "</font>))
01246 <font class="keywordflow">goto</font> out;
01247
01248 <font class="keywordflow">if</font> (!_dbus_string_hex_encode (data, 0, &auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>,
01249 _dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>)))
01250 <font class="keywordflow">goto</font> out;
01251
01252 <font class="keywordflow">if</font> (!_dbus_string_append (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>, <font class="stringliteral">"\r\n"</font>))
01253 <font class="keywordflow">goto</font> out;
01254
01255 <font class="keywordflow">return</font> TRUE;
01256
01257 out:
01258 _dbus_string_set_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>, old_len);
01259
01260 <font class="keywordflow">return</font> FALSE;
01261 }
01262 }
01263
01264 <font class="keyword">static</font> dbus_bool_t
01265 send_rejected (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01266 {
01267 <a class="code" href="structDBusString.html">DBusString</a> command;
01268 <a class="code" href="structDBusAuthServer.html">DBusAuthServer</a> *server_auth;
01269 <font class="keywordtype">int</font> i;
01270
01271 <font class="keywordflow">if</font> (!_dbus_string_init (&command))
01272 <font class="keywordflow">return</font> FALSE;
01273
01274 <font class="keywordflow">if</font> (!_dbus_string_append (&command,
01275 <font class="stringliteral">"REJECTED"</font>))
01276 <font class="keywordflow">goto</font> nomem;
01277
01278 i = 0;
01279 <font class="keywordflow">while</font> (all_mechanisms[i].<a class="code" href="structDBusAuthMechanismHandler.html#m0">mechanism</a> != NULL)
01280 {
01281 <font class="keywordflow">if</font> (!_dbus_string_append (&command,
01282 <font class="stringliteral">" "</font>))
01283 <font class="keywordflow">goto</font> nomem;
01284
01285 <font class="keywordflow">if</font> (!_dbus_string_append (&command,
01286 all_mechanisms[i].mechanism))
01287 <font class="keywordflow">goto</font> nomem;
01288
01289 ++i;
01290 }
01291
01292 <font class="keywordflow">if</font> (!_dbus_string_append (&command, <font class="stringliteral">"\r\n"</font>))
01293 <font class="keywordflow">goto</font> nomem;
01294
01295 <font class="keywordflow">if</font> (!_dbus_string_copy (&command, 0, &auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>,
01296 _dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>)))
01297 <font class="keywordflow">goto</font> nomem;
01298
01299 shutdown_mech (auth);
01300
01301 _dbus_assert (DBUS_AUTH_IS_SERVER (auth));
01302 server_auth = DBUS_AUTH_SERVER (auth);
01303 server_auth-><a class="code" href="structDBusAuthServer.html#m1">failures</a> += 1;
01304
01305 <font class="keywordflow">if</font> (server_auth-><a class="code" href="structDBusAuthServer.html#m1">failures</a> >= server_auth-><a class="code" href="structDBusAuthServer.html#m2">max_failures</a>)
01306 goto_state (auth, &common_state_need_disconnect);
01307 <font class="keywordflow">else</font>
01308 goto_state (auth, &server_state_waiting_for_auth);
01309
01310 _dbus_string_free (&command);
01311
01312 <font class="keywordflow">return</font> TRUE;
01313
01314 nomem:
01315 _dbus_string_free (&command);
01316 <font class="keywordflow">return</font> FALSE;
01317 }
01318
01319 <font class="keyword">static</font> dbus_bool_t
01320 send_error (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth, <font class="keyword">const</font> <font class="keywordtype">char</font> *message)
01321 {
01322 <font class="keywordflow">return</font> _dbus_string_append_printf (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>,
01323 <font class="stringliteral">"ERROR \"%s\"\r\n"</font>, message);
01324 }
01325
01326 <font class="keyword">static</font> dbus_bool_t
01327 send_ok (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01328 {
01329 <font class="keywordflow">if</font> (_dbus_string_append (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>, <font class="stringliteral">"OK\r\n"</font>))
01330 {
01331 goto_state (auth, &server_state_waiting_for_begin);
01332 <font class="keywordflow">return</font> TRUE;
01333 }
01334 <font class="keywordflow">else</font>
01335 <font class="keywordflow">return</font> FALSE;
01336 }
01337
01338 <font class="keyword">static</font> dbus_bool_t
01339 send_begin (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01340 {
01341 <font class="keywordflow">if</font> (_dbus_string_append (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>, <font class="stringliteral">"BEGIN\r\n"</font>))
01342 {
01343 goto_state (auth, &common_state_authenticated);
01344 <font class="keywordflow">return</font> TRUE;
01345 }
01346 <font class="keywordflow">else</font>
01347 <font class="keywordflow">return</font> FALSE;
01348 }
01349
01350 <font class="keyword">static</font> dbus_bool_t
01351 send_cancel (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01352 {
01353 <font class="keywordflow">if</font> (_dbus_string_append (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>, <font class="stringliteral">"CANCEL\r\n"</font>))
01354 {
01355 goto_state (auth, &client_state_waiting_for_reject);
01356 <font class="keywordflow">return</font> TRUE;
01357 }
01358 <font class="keywordflow">else</font>
01359 <font class="keywordflow">return</font> FALSE;
01360 }
01361
01362 <font class="keyword">static</font> dbus_bool_t
01363 process_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01364 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args,
01365 DBusAuthDataFunction data_func)
01366 {
01367 <font class="keywordtype">int</font> end;
01368 <a class="code" href="structDBusString.html">DBusString</a> decoded;
01369
01370 <font class="keywordflow">if</font> (!_dbus_string_init (&decoded))
01371 <font class="keywordflow">return</font> FALSE;
01372
01373 <font class="keywordflow">if</font> (!_dbus_string_hex_decode (args, 0, &end, &decoded, 0))
01374 {
01375 _dbus_string_free (&decoded);
01376 <font class="keywordflow">return</font> FALSE;
01377 }
01378
01379 <font class="keywordflow">if</font> (_dbus_string_get_length (args) != end)
01380 {
01381 _dbus_string_free (&decoded);
01382 <font class="keywordflow">if</font> (!send_error (auth, <font class="stringliteral">"Invalid hex encoding"</font>))
01383 <font class="keywordflow">return</font> FALSE;
01384
01385 <font class="keywordflow">return</font> TRUE;
01386 }
01387
01388 <font class="preprocessor">#ifdef DBUS_ENABLE_VERBOSE_MODE</font>
01389 <font class="preprocessor"></font> <font class="keywordflow">if</font> (_dbus_string_validate_ascii (&decoded, 0,
01390 _dbus_string_get_length (&decoded)))
01391 _dbus_verbose (<font class="stringliteral">"%s: data: '%s'\n"</font>,
01392 DBUS_AUTH_NAME (auth),
01393 _dbus_string_get_const_data (&decoded));
01394 <font class="preprocessor">#endif</font>
01395 <font class="preprocessor"></font>
01396 <font class="keywordflow">if</font> (!(* data_func) (auth, &decoded))
01397 {
01398 _dbus_string_free (&decoded);
01399 <font class="keywordflow">return</font> FALSE;
01400 }
01401
01402 _dbus_string_free (&decoded);
01403 <font class="keywordflow">return</font> TRUE;
01404 }
01405
01406 <font class="keyword">static</font> dbus_bool_t
01407 handle_auth (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth, <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01408 {
01409 <font class="keywordflow">if</font> (_dbus_string_get_length (args) == 0)
01410 {
01411 <font class="comment">/* No args to the auth, send mechanisms */</font>
01412 <font class="keywordflow">if</font> (!send_rejected (auth))
01413 <font class="keywordflow">return</font> FALSE;
01414
01415 <font class="keywordflow">return</font> TRUE;
01416 }
01417 <font class="keywordflow">else</font>
01418 {
01419 <font class="keywordtype">int</font> i;
01420 <a class="code" href="structDBusString.html">DBusString</a> mech;
01421 <a class="code" href="structDBusString.html">DBusString</a> hex_response;
01422
01423 _dbus_string_find_blank (args, 0, &i);
01424
01425 <font class="keywordflow">if</font> (!_dbus_string_init (&mech))
01426 <font class="keywordflow">return</font> FALSE;
01427
01428 <font class="keywordflow">if</font> (!_dbus_string_init (&hex_response))
01429 {
01430 _dbus_string_free (&mech);
01431 <font class="keywordflow">return</font> FALSE;
01432 }
01433
01434 <font class="keywordflow">if</font> (!_dbus_string_copy_len (args, 0, i, &mech, 0))
01435 <font class="keywordflow">goto</font> failed;
01436
01437 _dbus_string_skip_blank (args, i, &i);
01438 <font class="keywordflow">if</font> (!_dbus_string_copy (args, i, &hex_response, 0))
01439 <font class="keywordflow">goto</font> failed;
01440
01441 auth-><a class="code" href="structDBusAuth.html#m5">mech</a> = find_mech (&mech, auth-><a class="code" href="structDBusAuth.html#m14">allowed_mechs</a>);
01442 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m5">mech</a> != NULL)
01443 {
01444 _dbus_verbose (<font class="stringliteral">"%s: Trying mechanism %s\n"</font>,
01445 DBUS_AUTH_NAME (auth),
01446 auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m0">mechanism</a>);
01447
01448 <font class="keywordflow">if</font> (!process_data (auth, &hex_response,
01449 auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m1">server_data_func</a>))
01450 <font class="keywordflow">goto</font> failed;
01451 }
01452 <font class="keywordflow">else</font>
01453 {
01454 <font class="comment">/* Unsupported mechanism */</font>
01455 _dbus_verbose (<font class="stringliteral">"%s: Unsupported mechanism %s\n"</font>,
01456 DBUS_AUTH_NAME (auth),
01457 _dbus_string_get_const_data (&mech));
01458
01459 <font class="keywordflow">if</font> (!send_rejected (auth))
01460 <font class="keywordflow">goto</font> failed;
01461 }
01462
01463 _dbus_string_free (&mech);
01464 _dbus_string_free (&hex_response);
01465
01466 <font class="keywordflow">return</font> TRUE;
01467
01468 failed:
01469 auth-><a class="code" href="structDBusAuth.html#m5">mech</a> = NULL;
01470 _dbus_string_free (&mech);
01471 _dbus_string_free (&hex_response);
01472 <font class="keywordflow">return</font> FALSE;
01473 }
01474 }
01475
01476 <font class="keyword">static</font> dbus_bool_t
01477 handle_server_state_waiting_for_auth (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01478 DBusAuthCommand command,
01479 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01480 {
01481 <font class="keywordflow">switch</font> (command)
01482 {
01483 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_AUTH:
01484 <font class="keywordflow">return</font> handle_auth (auth, args);
01485
01486 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_CANCEL:
01487 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_DATA:
01488 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Not currently in an auth conversation"</font>);
01489
01490 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_BEGIN:
01491 goto_state (auth, &common_state_need_disconnect);
01492 <font class="keywordflow">return</font> TRUE;
01493
01494 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_ERROR:
01495 <font class="keywordflow">return</font> send_rejected (auth);
01496
01497 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_REJECTED:
01498 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_OK:
01499 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_UNKNOWN:
01500 <font class="keywordflow">default</font>:
01501 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Unknown command"</font>);
01502 }
01503 }
01504
01505 <font class="keyword">static</font> dbus_bool_t
01506 handle_server_state_waiting_for_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01507 DBusAuthCommand command,
01508 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01509 {
01510 <font class="keywordflow">switch</font> (command)
01511 {
01512 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_AUTH:
01513 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Sent AUTH while another AUTH in progress"</font>);
01514
01515 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_CANCEL:
01516 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_ERROR:
01517 <font class="keywordflow">return</font> send_rejected (auth);
01518
01519 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_DATA:
01520 <font class="keywordflow">return</font> process_data (auth, args, auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m1">server_data_func</a>);
01521
01522 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_BEGIN:
01523 goto_state (auth, &common_state_need_disconnect);
01524 <font class="keywordflow">return</font> TRUE;
01525
01526 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_REJECTED:
01527 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_OK:
01528 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_UNKNOWN:
01529 <font class="keywordflow">default</font>:
01530 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Unknown command"</font>);
01531 }
01532 }
01533
01534 <font class="keyword">static</font> dbus_bool_t
01535 handle_server_state_waiting_for_begin (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01536 DBusAuthCommand command,
01537 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01538 {
01539 <font class="keywordflow">switch</font> (command)
01540 {
01541 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_AUTH:
01542 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Sent AUTH while expecting BEGIN"</font>);
01543
01544 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_DATA:
01545 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Sent DATA while expecting BEGIN"</font>);
01546
01547 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_BEGIN:
01548 goto_state (auth, &common_state_authenticated);
01549 <font class="keywordflow">return</font> TRUE;
01550
01551 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_REJECTED:
01552 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_OK:
01553 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_UNKNOWN:
01554 <font class="keywordflow">default</font>:
01555 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Unknown command"</font>);
01556
01557 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_CANCEL:
01558 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_ERROR:
01559 <font class="keywordflow">return</font> send_rejected (auth);
01560 }
01561 }
01562
01563 <font class="comment">/* return FALSE if no memory, TRUE if all OK */</font>
01564 <font class="keyword">static</font> dbus_bool_t
01565 get_word (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *str,
01566 <font class="keywordtype">int</font> *start,
01567 <a class="code" href="structDBusString.html">DBusString</a> *word)
01568 {
01569 <font class="keywordtype">int</font> i;
01570
01571 _dbus_string_skip_blank (str, *start, start);
01572 _dbus_string_find_blank (str, *start, &i);
01573
01574 <font class="keywordflow">if</font> (i > *start)
01575 {
01576 <font class="keywordflow">if</font> (!_dbus_string_copy_len (str, *start, i - *start, word, 0))
01577 <font class="keywordflow">return</font> FALSE;
01578
01579 *start = i;
01580 }
01581
01582 <font class="keywordflow">return</font> TRUE;
01583 }
01584
01585 <font class="keyword">static</font> dbus_bool_t
01586 record_mechanisms (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01587 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01588 {
01589 <font class="keywordtype">int</font> next;
01590 <font class="keywordtype">int</font> len;
01591
01592 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m16">already_got_mechanisms</a>)
01593 <font class="keywordflow">return</font> TRUE;
01594
01595 len = _dbus_string_get_length (args);
01596
01597 next = 0;
01598 <font class="keywordflow">while</font> (next < len)
01599 {
01600 <a class="code" href="structDBusString.html">DBusString</a> m;
01601 <font class="keyword">const</font> <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a> *mech;
01602
01603 <font class="keywordflow">if</font> (!_dbus_string_init (&m))
01604 <font class="keywordflow">goto</font> nomem;
01605
01606 <font class="keywordflow">if</font> (!get_word (args, &next, &m))
01607 {
01608 _dbus_string_free (&m);
01609 <font class="keywordflow">goto</font> nomem;
01610 }
01611
01612 mech = find_mech (&m, auth-><a class="code" href="structDBusAuth.html#m14">allowed_mechs</a>);
01613
01614 <font class="keywordflow">if</font> (mech != NULL)
01615 {
01616 <font class="comment">/* FIXME right now we try mechanisms in the order</font>
01617 <font class="comment"> * the server lists them; should we do them in</font>
01618 <font class="comment"> * some more deterministic order?</font>
01619 <font class="comment"> *</font>
01620 <font class="comment"> * Probably in all_mechanisms order, our order of</font>
01621 <font class="comment"> * preference. Of course when the server is us,</font>
01622 <font class="comment"> * it lists things in that order anyhow.</font>
01623 <font class="comment"> */</font>
01624
01625 _dbus_verbose (<font class="stringliteral">"%s: Adding mechanism %s to list we will try\n"</font>,
01626 DBUS_AUTH_NAME (auth), mech-><a class="code" href="structDBusAuthMechanismHandler.html#m0">mechanism</a>);
01627
01628 <font class="keywordflow">if</font> (!_dbus_list_append (& DBUS_AUTH_CLIENT (auth)->mechs_to_try,
01629 (<font class="keywordtype">void</font>*) mech))
01630 {
01631 _dbus_string_free (&m);
01632 <font class="keywordflow">goto</font> nomem;
01633 }
01634 }
01635 <font class="keywordflow">else</font>
01636 {
01637 _dbus_verbose (<font class="stringliteral">"%s: Server offered mechanism \"%s\" that we don't know how to use\n"</font>,
01638 DBUS_AUTH_NAME (auth),
01639 _dbus_string_get_const_data (&m));
01640 }
01641
01642 _dbus_string_free (&m);
01643 }
01644
01645 auth-><a class="code" href="structDBusAuth.html#m16">already_got_mechanisms</a> = TRUE;
01646
01647 <font class="keywordflow">return</font> TRUE;
01648
01649 nomem:
01650 _dbus_list_clear (& DBUS_AUTH_CLIENT (auth)->mechs_to_try);
01651
01652 <font class="keywordflow">return</font> FALSE;
01653 }
01654
01655 <font class="keyword">static</font> dbus_bool_t
01656 process_rejected (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth, <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01657 {
01658 <font class="keyword">const</font> <a class="code" href="structDBusAuthMechanismHandler.html">DBusAuthMechanismHandler</a> *mech;
01659 <a class="code" href="structDBusAuthClient.html">DBusAuthClient</a> *client;
01660
01661 client = DBUS_AUTH_CLIENT (auth);
01662
01663 <font class="keywordflow">if</font> (!auth-><a class="code" href="structDBusAuth.html#m16">already_got_mechanisms</a>)
01664 {
01665 <font class="keywordflow">if</font> (!record_mechanisms (auth, args))
01666 <font class="keywordflow">return</font> FALSE;
01667 }
01668
01669 <font class="keywordflow">if</font> (DBUS_AUTH_CLIENT (auth)->mechs_to_try != NULL)
01670 {
01671 mech = client-><a class="code" href="structDBusAuthClient.html#m1">mechs_to_try</a>-><a class="code" href="structDBusList.html#m2">data</a>;
01672
01673 <font class="keywordflow">if</font> (!send_auth (auth, mech))
01674 <font class="keywordflow">return</font> FALSE;
01675
01676 _dbus_list_pop_first (&client-><a class="code" href="structDBusAuthClient.html#m1">mechs_to_try</a>);
01677
01678 _dbus_verbose (<font class="stringliteral">"%s: Trying mechanism %s\n"</font>,
01679 DBUS_AUTH_NAME (auth),
01680 mech-><a class="code" href="structDBusAuthMechanismHandler.html#m0">mechanism</a>);
01681 }
01682 <font class="keywordflow">else</font>
01683 {
01684 <font class="comment">/* Give up */</font>
01685 _dbus_verbose (<font class="stringliteral">"%s: Disconnecting because we are out of mechanisms to try using\n"</font>,
01686 DBUS_AUTH_NAME (auth));
01687 goto_state (auth, &common_state_need_disconnect);
01688 }
01689
01690 <font class="keywordflow">return</font> TRUE;
01691 }
01692
01693
01694 <font class="keyword">static</font> dbus_bool_t
01695 handle_client_state_waiting_for_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01696 DBusAuthCommand command,
01697 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01698 {
01699 _dbus_assert (auth-><a class="code" href="structDBusAuth.html#m5">mech</a> != NULL);
01700
01701 <font class="keywordflow">switch</font> (command)
01702 {
01703 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_DATA:
01704 <font class="keywordflow">return</font> process_data (auth, args, auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m6">client_data_func</a>);
01705
01706 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_REJECTED:
01707 <font class="keywordflow">return</font> process_rejected (auth, args);
01708
01709 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_OK:
01710 <font class="keywordflow">return</font> send_begin (auth);
01711
01712 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_ERROR:
01713 <font class="keywordflow">return</font> send_cancel (auth);
01714
01715 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_AUTH:
01716 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_CANCEL:
01717 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_BEGIN:
01718 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_UNKNOWN:
01719 <font class="keywordflow">default</font>:
01720 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Unknown command"</font>);
01721 }
01722 }
01723
01724 <font class="keyword">static</font> dbus_bool_t
01725 handle_client_state_waiting_for_ok (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01726 DBusAuthCommand command,
01727 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01728 {
01729 <font class="keywordflow">switch</font> (command)
01730 {
01731 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_REJECTED:
01732 <font class="keywordflow">return</font> process_rejected (auth, args);
01733
01734 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_OK:
01735 <font class="keywordflow">return</font> send_begin (auth);
01736
01737 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_DATA:
01738 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_ERROR:
01739 <font class="keywordflow">return</font> send_cancel (auth);
01740
01741 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_AUTH:
01742 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_CANCEL:
01743 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_BEGIN:
01744 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_UNKNOWN:
01745 <font class="keywordflow">default</font>:
01746 <font class="keywordflow">return</font> send_error (auth, <font class="stringliteral">"Unknown command"</font>);
01747 }
01748 }
01749
01750 <font class="keyword">static</font> dbus_bool_t
01751 handle_client_state_waiting_for_reject (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
01752 DBusAuthCommand command,
01753 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *args)
01754 {
01755 <font class="keywordflow">switch</font> (command)
01756 {
01757 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_REJECTED:
01758 <font class="keywordflow">return</font> process_rejected (auth, args);
01759
01760 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_AUTH:
01761 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_CANCEL:
01762 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_DATA:
01763 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_BEGIN:
01764 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_OK:
01765 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_ERROR:
01766 <font class="keywordflow">case</font> DBUS_AUTH_COMMAND_UNKNOWN:
01767 <font class="keywordflow">default</font>:
01768 goto_state (auth, &common_state_need_disconnect);
01769 <font class="keywordflow">return</font> TRUE;
01770 }
01771 }
01772
<a name="l01776"></a><a class="code" href="structDBusAuthCommandName.html">01776</a> <font class="keyword">typedef</font> <font class="keyword">struct </font>{
<a name="l01777"></a><a class="code" href="structDBusAuthCommandName.html#m0">01777</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *name;
<a name="l01778"></a><a class="code" href="structDBusAuthCommandName.html#m1">01778</a> DBusAuthCommand command;
01779 } <a class="code" href="structDBusAuthCommandName.html">DBusAuthCommandName</a>;
01780
01781 <font class="keyword">static</font> <a class="code" href="structDBusAuthCommandName.html">DBusAuthCommandName</a> auth_command_names[] = {
01782 { <font class="stringliteral">"AUTH"</font>, DBUS_AUTH_COMMAND_AUTH },
01783 { <font class="stringliteral">"CANCEL"</font>, DBUS_AUTH_COMMAND_CANCEL },
01784 { <font class="stringliteral">"DATA"</font>, DBUS_AUTH_COMMAND_DATA },
01785 { <font class="stringliteral">"BEGIN"</font>, DBUS_AUTH_COMMAND_BEGIN },
01786 { <font class="stringliteral">"REJECTED"</font>, DBUS_AUTH_COMMAND_REJECTED },
01787 { <font class="stringliteral">"OK"</font>, DBUS_AUTH_COMMAND_OK },
01788 { <font class="stringliteral">"ERROR"</font>, DBUS_AUTH_COMMAND_ERROR }
01789 };
01790
01791 <font class="keyword">static</font> DBusAuthCommand
01792 lookup_command_from_name (<a class="code" href="structDBusString.html">DBusString</a> *command)
01793 {
01794 <font class="keywordtype">int</font> i;
01795
01796 <font class="keywordflow">for</font> (i = 0; i < _DBUS_N_ELEMENTS (auth_command_names); i++)
01797 {
01798 <font class="keywordflow">if</font> (_dbus_string_equal_c_str (command,
01799 auth_command_names[i].name))
01800 <font class="keywordflow">return</font> auth_command_names[i].<a class="code" href="structDBusAuthCommandName.html#m1">command</a>;
01801 }
01802
01803 <font class="keywordflow">return</font> DBUS_AUTH_COMMAND_UNKNOWN;
01804 }
01805
01806 <font class="keyword">static</font> <font class="keywordtype">void</font>
01807 goto_state (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth, <font class="keyword">const</font> <a class="code" href="structDBusAuthStateData.html">DBusAuthStateData</a> *state)
01808 {
01809 _dbus_verbose (<font class="stringliteral">"%s: going from state %s to state %s\n"</font>,
01810 DBUS_AUTH_NAME (auth),
01811 auth-><a class="code" href="structDBusAuth.html#m4">state</a>-><a class="code" href="structDBusAuthStateData.html#m0">name</a>,
01812 state-><a class="code" href="structDBusAuthStateData.html#m0">name</a>);
01813
01814 auth-><a class="code" href="structDBusAuth.html#m4">state</a> = state;
01815 }
01816
01817 <font class="comment">/* returns whether to call it again right away */</font>
01818 <font class="keyword">static</font> dbus_bool_t
01819 process_command (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01820 {
01821 DBusAuthCommand command;
01822 <a class="code" href="structDBusString.html">DBusString</a> line;
01823 <a class="code" href="structDBusString.html">DBusString</a> args;
01824 <font class="keywordtype">int</font> eol;
01825 <font class="keywordtype">int</font> i, j;
01826 dbus_bool_t retval;
01827
01828 <font class="comment">/* _dbus_verbose ("%s: trying process_command()\n"); */</font>
01829
01830 retval = FALSE;
01831
01832 eol = 0;
01833 <font class="keywordflow">if</font> (!_dbus_string_find (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>, 0, <font class="stringliteral">"\r\n"</font>, &eol))
01834 <font class="keywordflow">return</font> FALSE;
01835
01836 <font class="keywordflow">if</font> (!_dbus_string_init (&line))
01837 {
01838 auth-><a class="code" href="structDBusAuth.html#m15">needed_memory</a> = TRUE;
01839 <font class="keywordflow">return</font> FALSE;
01840 }
01841
01842 <font class="keywordflow">if</font> (!_dbus_string_init (&args))
01843 {
01844 _dbus_string_free (&line);
01845 auth-><a class="code" href="structDBusAuth.html#m15">needed_memory</a> = TRUE;
01846 <font class="keywordflow">return</font> FALSE;
01847 }
01848
01849 <font class="keywordflow">if</font> (!_dbus_string_copy_len (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>, 0, eol, &line, 0))
01850 <font class="keywordflow">goto</font> out;
01851
01852 <font class="keywordflow">if</font> (!_dbus_string_validate_ascii (&line, 0,
01853 _dbus_string_get_length (&line)))
01854 {
01855 _dbus_verbose (<font class="stringliteral">"%s: Command contained non-ASCII chars or embedded nul\n"</font>,
01856 DBUS_AUTH_NAME (auth));
01857 <font class="keywordflow">if</font> (!send_error (auth, <font class="stringliteral">"Command contained non-ASCII"</font>))
01858 <font class="keywordflow">goto</font> out;
01859 <font class="keywordflow">else</font>
01860 <font class="keywordflow">goto</font> next_command;
01861 }
01862
01863 _dbus_verbose (<font class="stringliteral">"%s: got command \"%s\"\n"</font>,
01864 DBUS_AUTH_NAME (auth),
01865 _dbus_string_get_const_data (&line));
01866
01867 _dbus_string_find_blank (&line, 0, &i);
01868 _dbus_string_skip_blank (&line, i, &j);
01869
01870 <font class="keywordflow">if</font> (j > i)
01871 _dbus_string_delete (&line, i, j - i);
01872
01873 <font class="keywordflow">if</font> (!_dbus_string_move (&line, i, &args, 0))
01874 <font class="keywordflow">goto</font> out;
01875
01876 command = lookup_command_from_name (&line);
01877 <font class="keywordflow">if</font> (!(* auth-><a class="code" href="structDBusAuth.html#m4">state</a>-><a class="code" href="structDBusAuthStateData.html#m1">handler</a>) (auth, command, &args))
01878 <font class="keywordflow">goto</font> out;
01879
01880 next_command:
01881
01882 <font class="comment">/* We've succeeded in processing the whole command so drop it out</font>
01883 <font class="comment"> * of the incoming buffer and return TRUE to try another command.</font>
01884 <font class="comment"> */</font>
01885
01886 _dbus_string_delete (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>, 0, eol);
01887
01888 <font class="comment">/* kill the \r\n */</font>
01889 _dbus_string_delete (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>, 0, 2);
01890
01891 retval = TRUE;
01892
01893 out:
01894 _dbus_string_free (&args);
01895 _dbus_string_free (&line);
01896
01897 <font class="keywordflow">if</font> (!retval)
01898 auth-><a class="code" href="structDBusAuth.html#m15">needed_memory</a> = TRUE;
01899 <font class="keywordflow">else</font>
01900 auth-><a class="code" href="structDBusAuth.html#m15">needed_memory</a> = FALSE;
01901
01902 <font class="keywordflow">return</font> retval;
01903 }
01904
01905
01920 <a class="code" href="structDBusAuth.html">DBusAuth</a>*
<a name="l01921"></a><a class="code" href="group__DBusAuth.html#a0">01921</a> _dbus_auth_server_new (<font class="keywordtype">void</font>)
01922 {
01923 <a class="code" href="structDBusAuth.html">DBusAuth</a> *auth;
01924 <a class="code" href="structDBusAuthServer.html">DBusAuthServer</a> *server_auth;
01925
01926 auth = _dbus_auth_new (<font class="keyword">sizeof</font> (<a class="code" href="structDBusAuthServer.html">DBusAuthServer</a>));
01927 <font class="keywordflow">if</font> (auth == NULL)
01928 <font class="keywordflow">return</font> NULL;
01929
01930 auth-><a class="code" href="structDBusAuth.html#m1">side</a> = auth_side_server;
01931 auth-><a class="code" href="structDBusAuth.html#m4">state</a> = &server_state_waiting_for_auth;
01932
01933 server_auth = DBUS_AUTH_SERVER (auth);
01934
01935 <font class="comment">/* perhaps this should be per-mechanism with a lower</font>
01936 <font class="comment"> * max</font>
01937 <font class="comment"> */</font>
01938 server_auth-><a class="code" href="structDBusAuthServer.html#m1">failures</a> = 0;
01939 server_auth-><a class="code" href="structDBusAuthServer.html#m2">max_failures</a> = 6;
01940
01941 <font class="keywordflow">return</font> auth;
01942 }
01943
01951 <a class="code" href="structDBusAuth.html">DBusAuth</a>*
<a name="l01952"></a><a class="code" href="group__DBusAuth.html#a1">01952</a> _dbus_auth_client_new (<font class="keywordtype">void</font>)
01953 {
01954 <a class="code" href="structDBusAuth.html">DBusAuth</a> *auth;
01955
01956 auth = _dbus_auth_new (<font class="keyword">sizeof</font> (<a class="code" href="structDBusAuthClient.html">DBusAuthClient</a>));
01957 <font class="keywordflow">if</font> (auth == NULL)
01958 <font class="keywordflow">return</font> NULL;
01959
01960 auth-><a class="code" href="structDBusAuth.html#m1">side</a> = auth_side_client;
01961 auth-><a class="code" href="structDBusAuth.html#m4">state</a> = &client_state_need_send_auth;
01962
01963 <font class="comment">/* Start the auth conversation by sending AUTH for our default</font>
01964 <font class="comment"> * mechanism */</font>
01965 <font class="keywordflow">if</font> (!send_auth (auth, &all_mechanisms[0]))
01966 {
01967 _dbus_auth_unref (auth);
01968 <font class="keywordflow">return</font> NULL;
01969 }
01970
01971 <font class="keywordflow">return</font> auth;
01972 }
01973
01980 <a class="code" href="structDBusAuth.html">DBusAuth</a> *
<a name="l01981"></a><a class="code" href="group__DBusAuth.html#a2">01981</a> _dbus_auth_ref (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01982 {
01983 _dbus_assert (auth != NULL);
01984
01985 auth-><a class="code" href="structDBusAuth.html#m0">refcount</a> += 1;
01986
01987 <font class="keywordflow">return</font> auth;
01988 }
01989
01995 <font class="keywordtype">void</font>
<a name="l01996"></a><a class="code" href="group__DBusAuth.html#a3">01996</a> _dbus_auth_unref (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
01997 {
01998 _dbus_assert (auth != NULL);
01999 _dbus_assert (auth-><a class="code" href="structDBusAuth.html#m0">refcount</a> > 0);
02000
02001 auth-><a class="code" href="structDBusAuth.html#m0">refcount</a> -= 1;
02002 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m0">refcount</a> == 0)
02003 {
02004 shutdown_mech (auth);
02005
02006 <font class="keywordflow">if</font> (DBUS_AUTH_IS_CLIENT (auth))
02007 {
02008 _dbus_list_clear (& DBUS_AUTH_CLIENT (auth)->mechs_to_try);
02009 }
02010
02011 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a>)
02012 _dbus_keyring_unref (auth-><a class="code" href="structDBusAuth.html#m11">keyring</a>);
02013
02014 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m10">context</a>);
02015 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m13">challenge</a>);
02016 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m6">identity</a>);
02017 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>);
02018 _dbus_string_free (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>);
02019
02020 dbus_free_string_array (auth-><a class="code" href="structDBusAuth.html#m14">allowed_mechs</a>);
02021
02022 dbus_free (auth);
02023 }
02024 }
02025
02034 dbus_bool_t
<a name="l02035"></a><a class="code" href="group__DBusAuth.html#a4">02035</a> _dbus_auth_set_mechanisms (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02036 <font class="keyword">const</font> <font class="keywordtype">char</font> **mechanisms)
02037 {
02038 <font class="keywordtype">char</font> **copy;
02039
02040 <font class="keywordflow">if</font> (mechanisms != NULL)
02041 {
02042 copy = _dbus_dup_string_array (mechanisms);
02043 <font class="keywordflow">if</font> (copy == NULL)
02044 <font class="keywordflow">return</font> FALSE;
02045 }
02046 <font class="keywordflow">else</font>
02047 copy = NULL;
02048
02049 dbus_free_string_array (auth-><a class="code" href="structDBusAuth.html#m14">allowed_mechs</a>);
02050
02051 auth-><a class="code" href="structDBusAuth.html#m14">allowed_mechs</a> = copy;
02052
02053 <font class="keywordflow">return</font> TRUE;
02054 }
02055
<a name="l02060"></a><a class="code" href="group__DBusAuth.html#a19">02060</a> <font class="preprocessor">#define DBUS_AUTH_IN_END_STATE(auth) ((auth)->state->handler == NULL)</font>
02061 <font class="preprocessor"></font>
02069 DBusAuthState
<a name="l02070"></a><a class="code" href="group__DBusAuth.html#a5">02070</a> _dbus_auth_do_work (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
02071 {
02072 auth-><a class="code" href="structDBusAuth.html#m15">needed_memory</a> = FALSE;
02073
02074 <font class="comment">/* Max amount we'll buffer up before deciding someone's on crack */</font>
02075 <font class="preprocessor">#define MAX_BUFFER (16 * _DBUS_ONE_KILOBYTE)</font>
02076 <font class="preprocessor"></font>
02077 <font class="keywordflow">do</font>
02078 {
02079 <font class="keywordflow">if</font> (DBUS_AUTH_IN_END_STATE (auth))
02080 <font class="keywordflow">break</font>;
02081
02082 <font class="keywordflow">if</font> (_dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>) > MAX_BUFFER ||
02083 _dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>) > MAX_BUFFER)
02084 {
02085 goto_state (auth, &common_state_need_disconnect);
02086 _dbus_verbose (<font class="stringliteral">"%s: Disconnecting due to excessive data buffered in auth phase\n"</font>,
02087 DBUS_AUTH_NAME (auth));
02088 <font class="keywordflow">break</font>;
02089 }
02090 }
02091 <font class="keywordflow">while</font> (process_command (auth));
02092
02093 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m15">needed_memory</a>)
02094 <font class="keywordflow">return</font> DBUS_AUTH_STATE_WAITING_FOR_MEMORY;
02095 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (_dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>) > 0)
02096 <font class="keywordflow">return</font> DBUS_AUTH_STATE_HAVE_BYTES_TO_SEND;
02097 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m4">state</a> == &common_state_need_disconnect)
02098 <font class="keywordflow">return</font> DBUS_AUTH_STATE_NEED_DISCONNECT;
02099 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m4">state</a> == &common_state_authenticated)
02100 <font class="keywordflow">return</font> DBUS_AUTH_STATE_AUTHENTICATED;
02101 <font class="keywordflow">else</font> <font class="keywordflow">return</font> DBUS_AUTH_STATE_WAITING_FOR_INPUT;
02102 }
02103
02113 dbus_bool_t
<a name="l02114"></a><a class="code" href="group__DBusAuth.html#a6">02114</a> _dbus_auth_get_bytes_to_send (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02115 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> **str)
02116 {
02117 _dbus_assert (auth != NULL);
02118 _dbus_assert (str != NULL);
02119
02120 *str = NULL;
02121
02122 <font class="keywordflow">if</font> (_dbus_string_get_length (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>) == 0)
02123 <font class="keywordflow">return</font> FALSE;
02124
02125 *str = &auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>;
02126
02127 <font class="keywordflow">return</font> TRUE;
02128 }
02129
02138 <font class="keywordtype">void</font>
<a name="l02139"></a><a class="code" href="group__DBusAuth.html#a7">02139</a> _dbus_auth_bytes_sent (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02140 <font class="keywordtype">int</font> bytes_sent)
02141 {
02142 _dbus_verbose (<font class="stringliteral">"%s: Sent %d bytes of: %s\n"</font>,
02143 DBUS_AUTH_NAME (auth),
02144 bytes_sent,
02145 _dbus_string_get_const_data (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>));
02146
02147 _dbus_string_delete (&auth-><a class="code" href="structDBusAuth.html#m3">outgoing</a>,
02148 0, bytes_sent);
02149 }
02150
02158 <font class="keywordtype">void</font>
<a name="l02159"></a><a class="code" href="group__DBusAuth.html#a8">02159</a> _dbus_auth_get_buffer (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02160 <a class="code" href="structDBusString.html">DBusString</a> **buffer)
02161 {
02162 _dbus_assert (auth != NULL);
02163 _dbus_assert (!auth-><a class="code" href="structDBusAuth.html#m18">buffer_outstanding</a>);
02164
02165 *buffer = &auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>;
02166
02167 auth-><a class="code" href="structDBusAuth.html#m18">buffer_outstanding</a> = TRUE;
02168 }
02169
02177 <font class="keywordtype">void</font>
<a name="l02178"></a><a class="code" href="group__DBusAuth.html#a9">02178</a> _dbus_auth_return_buffer (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02179 <a class="code" href="structDBusString.html">DBusString</a> *buffer,
02180 <font class="keywordtype">int</font> bytes_read)
02181 {
02182 _dbus_assert (buffer == &auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>);
02183 _dbus_assert (auth-><a class="code" href="structDBusAuth.html#m18">buffer_outstanding</a>);
02184
02185 auth-><a class="code" href="structDBusAuth.html#m18">buffer_outstanding</a> = FALSE;
02186 }
02187
02197 <font class="keywordtype">void</font>
<a name="l02198"></a><a class="code" href="group__DBusAuth.html#a10">02198</a> _dbus_auth_get_unused_bytes (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02199 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> **str)
02200 {
02201 <font class="keywordflow">if</font> (!DBUS_AUTH_IN_END_STATE (auth))
02202 <font class="keywordflow">return</font>;
02203
02204 *str = &auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>;
02205 }
02206
02207
02214 <font class="keywordtype">void</font>
<a name="l02215"></a><a class="code" href="group__DBusAuth.html#a11">02215</a> _dbus_auth_delete_unused_bytes (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
02216 {
02217 <font class="keywordflow">if</font> (!DBUS_AUTH_IN_END_STATE (auth))
02218 <font class="keywordflow">return</font>;
02219
02220 _dbus_string_set_length (&auth-><a class="code" href="structDBusAuth.html#m2">incoming</a>, 0);
02221 }
02222
02231 dbus_bool_t
<a name="l02232"></a><a class="code" href="group__DBusAuth.html#a12">02232</a> _dbus_auth_needs_encoding (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
02233 {
02234 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m4">state</a> != &common_state_authenticated)
02235 <font class="keywordflow">return</font> FALSE;
02236
02237 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m5">mech</a> != NULL)
02238 {
02239 <font class="keywordflow">if</font> (DBUS_AUTH_IS_CLIENT (auth))
02240 <font class="keywordflow">return</font> auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m7">client_encode_func</a> != NULL;
02241 <font class="keywordflow">else</font>
02242 <font class="keywordflow">return</font> auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m2">server_encode_func</a> != NULL;
02243 }
02244 <font class="keywordflow">else</font>
02245 <font class="keywordflow">return</font> FALSE;
02246 }
02247
02258 dbus_bool_t
<a name="l02259"></a><a class="code" href="group__DBusAuth.html#a13">02259</a> _dbus_auth_encode_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02260 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *plaintext,
02261 <a class="code" href="structDBusString.html">DBusString</a> *encoded)
02262 {
02263 _dbus_assert (plaintext != encoded);
02264
02265 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m4">state</a> != &common_state_authenticated)
02266 <font class="keywordflow">return</font> FALSE;
02267
02268 <font class="keywordflow">if</font> (_dbus_auth_needs_encoding (auth))
02269 {
02270 <font class="keywordflow">if</font> (DBUS_AUTH_IS_CLIENT (auth))
02271 <font class="keywordflow">return</font> (* auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m7">client_encode_func</a>) (auth, plaintext, encoded);
02272 <font class="keywordflow">else</font>
02273 <font class="keywordflow">return</font> (* auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m2">server_encode_func</a>) (auth, plaintext, encoded);
02274 }
02275 <font class="keywordflow">else</font>
02276 {
02277 <font class="keywordflow">return</font> _dbus_string_copy (plaintext, 0, encoded,
02278 _dbus_string_get_length (encoded));
02279 }
02280 }
02281
02290 dbus_bool_t
<a name="l02291"></a><a class="code" href="group__DBusAuth.html#a14">02291</a> _dbus_auth_needs_decoding (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth)
02292 {
02293 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m4">state</a> != &common_state_authenticated)
02294 <font class="keywordflow">return</font> FALSE;
02295
02296 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m5">mech</a> != NULL)
02297 {
02298 <font class="keywordflow">if</font> (DBUS_AUTH_IS_CLIENT (auth))
02299 <font class="keywordflow">return</font> auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m8">client_decode_func</a> != NULL;
02300 <font class="keywordflow">else</font>
02301 <font class="keywordflow">return</font> auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m3">server_decode_func</a> != NULL;
02302 }
02303 <font class="keywordflow">else</font>
02304 <font class="keywordflow">return</font> FALSE;
02305 }
02306
02307
02321 dbus_bool_t
<a name="l02322"></a><a class="code" href="group__DBusAuth.html#a15">02322</a> _dbus_auth_decode_data (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02323 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *encoded,
02324 <a class="code" href="structDBusString.html">DBusString</a> *plaintext)
02325 {
02326 _dbus_assert (plaintext != encoded);
02327
02328 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m4">state</a> != &common_state_authenticated)
02329 <font class="keywordflow">return</font> FALSE;
02330
02331 <font class="keywordflow">if</font> (_dbus_auth_needs_decoding (auth))
02332 {
02333 <font class="keywordflow">if</font> (DBUS_AUTH_IS_CLIENT (auth))
02334 <font class="keywordflow">return</font> (* auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m8">client_decode_func</a>) (auth, encoded, plaintext);
02335 <font class="keywordflow">else</font>
02336 <font class="keywordflow">return</font> (* auth-><a class="code" href="structDBusAuth.html#m5">mech</a>-><a class="code" href="structDBusAuthMechanismHandler.html#m3">server_decode_func</a>) (auth, encoded, plaintext);
02337 }
02338 <font class="keywordflow">else</font>
02339 {
02340 <font class="keywordflow">return</font> _dbus_string_copy (encoded, 0, plaintext,
02341 _dbus_string_get_length (plaintext));
02342 }
02343 }
02344
02352 <font class="keywordtype">void</font>
<a name="l02353"></a><a class="code" href="group__DBusAuth.html#a16">02353</a> _dbus_auth_set_credentials (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02354 <font class="keyword">const</font> <a class="code" href="structDBusCredentials.html">DBusCredentials</a> *credentials)
02355 {
02356 auth-><a class="code" href="structDBusAuth.html#m7">credentials</a> = *credentials;
02357 }
02358
02366 <font class="keywordtype">void</font>
<a name="l02367"></a><a class="code" href="group__DBusAuth.html#a17">02367</a> _dbus_auth_get_identity (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02368 <a class="code" href="structDBusCredentials.html">DBusCredentials</a> *credentials)
02369 {
02370 <font class="keywordflow">if</font> (auth-><a class="code" href="structDBusAuth.html#m4">state</a> == &common_state_authenticated)
02371 *credentials = auth-><a class="code" href="structDBusAuth.html#m8">authorized_identity</a>;
02372 <font class="keywordflow">else</font>
02373 _dbus_credentials_clear (credentials);
02374 }
02375
02384 dbus_bool_t
<a name="l02385"></a><a class="code" href="group__DBusAuth.html#a18">02385</a> _dbus_auth_set_context (<a class="code" href="structDBusAuth.html">DBusAuth</a> *auth,
02386 <font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *context)
02387 {
02388 <font class="keywordflow">return</font> _dbus_string_replace_len (context, 0, _dbus_string_get_length (context),
02389 &auth-><a class="code" href="structDBusAuth.html#m10">context</a>, 0, _dbus_string_get_length (context));
02390 }
02391
02394 <font class="preprocessor">#ifdef DBUS_BUILD_TESTS</font>
02395 <font class="preprocessor"></font><font class="preprocessor">#include "dbus-test.h"</font>
02396 <font class="preprocessor">#include "dbus-auth-script.h"</font>
02397 <font class="preprocessor">#include <stdio.h></font>
02398
02399 <font class="keyword">static</font> dbus_bool_t
02400 process_test_subdir (<font class="keyword">const</font> <a class="code" href="structDBusString.html">DBusString</a> *test_base_dir,
02401 <font class="keyword">const</font> <font class="keywordtype">char</font> *subdir)
02402 {
02403 <a class="code" href="structDBusString.html">DBusString</a> test_directory;
02404 <a class="code" href="structDBusString.html">DBusString</a> filename;
02405 <a class="code" href="structDBusDirIter.html">DBusDirIter</a> *dir;
02406 dbus_bool_t retval;
02407 <a class="code" href="structDBusError.html">DBusError</a> error;
02408
02409 retval = FALSE;
02410 dir = NULL;
02411
02412 <font class="keywordflow">if</font> (!_dbus_string_init (&test_directory))
02413 _dbus_assert_not_reached (<font class="stringliteral">"didn't allocate test_directory\n"</font>);
02414
02415 _dbus_string_init_const (&filename, subdir);
02416
02417 <font class="keywordflow">if</font> (!_dbus_string_copy (test_base_dir, 0,
02418 &test_directory, 0))
02419 _dbus_assert_not_reached (<font class="stringliteral">"couldn't copy test_base_dir to test_directory"</font>);
02420
02421 <font class="keywordflow">if</font> (!_dbus_concat_dir_and_file (&test_directory, &filename))
02422 _dbus_assert_not_reached (<font class="stringliteral">"couldn't allocate full path"</font>);
02423
02424 _dbus_string_free (&filename);
02425 <font class="keywordflow">if</font> (!_dbus_string_init (&filename))
02426 _dbus_assert_not_reached (<font class="stringliteral">"didn't allocate filename string\n"</font>);
02427
02428 dbus_error_init (&error);
02429 dir = _dbus_directory_open (&test_directory, &error);
02430 <font class="keywordflow">if</font> (dir == NULL)
02431 {
02432 _dbus_warn (<font class="stringliteral">"Could not open %s: %s\n"</font>,
02433 _dbus_string_get_const_data (&test_directory),
02434 error.<a class="code" href="structDBusError.html#m1">message</a>);
02435 dbus_error_free (&error);
02436 <font class="keywordflow">goto</font> failed;
02437 }
02438
02439 printf (<font class="stringliteral">"Testing %s:\n"</font>, subdir);
02440
02441 next:
02442 <font class="keywordflow">while</font> (_dbus_directory_get_next_file (dir, &filename, &error))
02443 {
02444 <a class="code" href="structDBusString.html">DBusString</a> full_path;
02445
02446 <font class="keywordflow">if</font> (!_dbus_string_init (&full_path))
02447 _dbus_assert_not_reached (<font class="stringliteral">"couldn't init string"</font>);
02448
02449 <font class="keywordflow">if</font> (!_dbus_string_copy (&test_directory, 0, &full_path, 0))
02450 _dbus_assert_not_reached (<font class="stringliteral">"couldn't copy dir to full_path"</font>);
02451
02452 <font class="keywordflow">if</font> (!_dbus_concat_dir_and_file (&full_path, &filename))
02453 _dbus_assert_not_reached (<font class="stringliteral">"couldn't concat file to dir"</font>);
02454
02455 <font class="keywordflow">if</font> (!_dbus_string_ends_with_c_str (&filename, <font class="stringliteral">".auth-script"</font>))
02456 {
02457 _dbus_verbose (<font class="stringliteral">"Skipping non-.auth-script file %s\n"</font>,
02458 _dbus_string_get_const_data (&filename));
02459 _dbus_string_free (&full_path);
02460 <font class="keywordflow">goto</font> next;
02461 }
02462
02463 printf (<font class="stringliteral">" %s\n"</font>, _dbus_string_get_const_data (&filename));
02464
02465 <font class="keywordflow">if</font> (!_dbus_auth_script_run (&full_path))
02466 {
02467 _dbus_string_free (&full_path);
02468 <font class="keywordflow">goto</font> failed;
02469 }
02470 <font class="keywordflow">else</font>
02471 _dbus_string_free (&full_path);
02472 }
02473
02474 <font class="keywordflow">if</font> (dbus_error_is_set (&error))
02475 {
02476 _dbus_warn (<font class="stringliteral">"Could not get next file in %s: %s\n"</font>,
02477 _dbus_string_get_const_data (&test_directory), error.<a class="code" href="structDBusError.html#m1">message</a>);
02478 dbus_error_free (&error);
02479 <font class="keywordflow">goto</font> failed;
02480 }
02481
02482 retval = TRUE;
02483
02484 failed:
02485
02486 <font class="keywordflow">if</font> (dir)
02487 _dbus_directory_close (dir);
02488 _dbus_string_free (&test_directory);
02489 _dbus_string_free (&filename);
02490
02491 <font class="keywordflow">return</font> retval;
02492 }
02493
02494 <font class="keyword">static</font> dbus_bool_t
02495 process_test_dirs (<font class="keyword">const</font> <font class="keywordtype">char</font> *test_data_dir)
02496 {
02497 <a class="code" href="structDBusString.html">DBusString</a> test_directory;
02498 dbus_bool_t retval;
02499
02500 retval = FALSE;
02501
02502 _dbus_string_init_const (&test_directory, test_data_dir);
02503
02504 <font class="keywordflow">if</font> (!process_test_subdir (&test_directory, <font class="stringliteral">"auth"</font>))
02505 <font class="keywordflow">goto</font> failed;
02506
02507 retval = TRUE;
02508
02509 failed:
02510
02511 _dbus_string_free (&test_directory);
02512
02513 <font class="keywordflow">return</font> retval;
02514 }
02515
02516 dbus_bool_t
02517 _dbus_auth_test (<font class="keyword">const</font> <font class="keywordtype">char</font> *test_data_dir)
02518 {
02519
02520 <font class="keywordflow">if</font> (test_data_dir == NULL)
02521 <font class="keywordflow">return</font> TRUE;
02522
02523 <font class="keywordflow">if</font> (!process_test_dirs (test_data_dir))
02524 <font class="keywordflow">return</font> FALSE;
02525
02526 <font class="keywordflow">return</font> TRUE;
02527 }
02528
02529 <font class="preprocessor">#endif </font><font class="comment">/* DBUS_BUILD_TESTS */</font>
</pre></div><hr><address align="right"><small>Generated on Wed Jun 9 05:01:25 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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