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User & Date: | bohagan on 2023-04-30 16:07:43 |
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2023-04-30
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17:06 | Updated windows makefile to add missing targets check-in: 06521814cd user: bohagan tags: TEA | |
16:07 | Moved files to subdirectories per TEA directory structure. check-in: 3dcd70f98e user: bohagan tags: TEA | |
02:08 | Format clean-ups. check-in: e02b79f82f user: bohagan tags: TEA | |
Deleted HEADER version [b4ecd86142].
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Modified README.txt from [4d858d5c33] to [ce26e28f05].
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8 9 10 11 12 13 14 | Both client and server-side sockets are possible, and this code should work on any platform as it uses a generic mechanism for layering on SSL and Tcl. Full filevent sematics should also be intact - see tests directory for blocking and non-blocking examples. | | | 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | Both client and server-side sockets are possible, and this code should work on any platform as it uses a generic mechanism for layering on SSL and Tcl. Full filevent sematics should also be intact - see tests directory for blocking and non-blocking examples. The current release is TLS 1.7, with binaries built against OpenSSL 1.1.1. For best security and function, always compile from source with the latest official release of OpenSSL (http://www.openssl.org/). TLS 1.7 and newer require Tcl 8.4.0+, older versions may be used if older versions of Tcl need to be used. TclTLS requires OpenSSL or LibreSSL in order to be compiled and function. |
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Added doc/tls.htm version [a06ffeb7ad].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 | <!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="Copyright" content="1999 Matt Newman / 2004 Starfish Systems"> <title>TLS (SSL) Tcl Commands</title> </head> <body bgcolor="#FFFFFF"> <dl> <dd><a href="#NAME">NAME</a> <dl> <dd><strong>tls</strong> - binding to <strong>OpenSSL</strong> toolkit.</dd> </dl> </dd> <dd><a href="#SYNOPSIS">SYNOPSIS</a> </dd> <dd><dl> <dd><b>package require Tcl </b><em>?8.4?</em></dd> <dd><b>package require tls </b><em>?@@VERS@@?</em></dd> <dt> </dt> <dd><b>tls::init </b><i>?options?</i> </dd> <dd><b>tls::socket </b><em>?options? host port</em></dd> <dd><b>tls::socket</b><em> ?-server command? ?options? port</em></dd> <dd><b>tls::handshake</b><em> channel</em></dd> <dd><b>tls::status </b><em>?-local? channel</em></dd> <dd><b>tls::import</b><em> channel ?options?</em></dd> <dd><b>tls::unimport</b><em> channel</em></dd> <dd><b>tls::ciphers </b><em>protocol ?verbose?</em></dd> <dd><b>tls::version</b></dd> </dl> </dd> <dd><a href="#COMMANDS">COMMANDS</a></dd> <dd><a href="#CALLBACK OPTIONS">CALLBACK OPTIONS</a></dd> <dd><a href="#HTTPS EXAMPLE">HTTPS EXAMPLE</a></dd> <dd><a href="#SEE ALSO">SPECIAL CONSIDERATIONS</a></dd> <dd><a href="#SEE ALSO">SEE ALSO</a></dd> </dl> <hr> <h3><a name="NAME">NAME</a></h3> <p><strong>tls</strong> - binding to <strong>OpenSSL</strong> toolkit.</p> <h3><a name="SYNOPSIS">SYNOPSIS</a></h3> <p><b>package require Tcl 8.4</b><br> <b>package require tls @@VERS@@</b><br> <br> <a href="#tls::init"><b>tls::init </b><i>?options?</i><br> </a><a href="#tls::socket"><b>tls::socket </b><em>?options? host port</em><br> <b>tls::socket</b><em> ?-server command? ?options? port</em><br> </a><a href="#tls::status"><b>tls::status </b><em>?-local? channel</em><br> </a><a href="#tls::handshake"><b>tls::handshake</b><em> channel</em></a><br> <br> <a href="#tls::import"><b>tls::import </b><i>channel ?options?</i></a><br> <a href="#tls::unimport"><b>tls::unimport </b><i>channel</i></a><br> <a href="#tls::ciphers protocol ?verbose?"><strong>tls::ciphers</strong> <em>protocol ?verbose?</em></a><br> <a href="#tls::version"><b>tls::version</b></a> </p> <h3><a name="DESCRIPTION">DESCRIPTION</a></h3> <p>This extension provides a generic binding to <a href="http://www.openssl.org/">OpenSSL</a>, utilizing the <strong>Tcl_StackChannel</strong> API for Tcl 8.4 and higher. The sockets behave exactly the same as channels created using Tcl's built-in <strong>socket</strong> command with additional options for controlling the SSL session. </p> <h3><a name="COMMANDS">COMMANDS</a></h3> <p>Typically one would use the <strong>tls::socket </strong>command which provides compatibility with the native Tcl <strong>socket</strong> command. In such cases <strong>tls::import</strong> should not be used directly.</p> <dl> <dt><a name="tls::init"><b>tls::init </b><i>?options?</i></a></dt> <dd>This routine sets the default options used by <strong>tls::socket</strong> and is <em>optional</em>. If you call <strong>tls::import</strong> directly this routine has no effect. Any of the options that <strong>tls::socket</strong> accepts can be set using this command, though you should limit your options to only TLS related ones.</dd> <dt> </dt> <dt><a name="tls::socket"><b>tls::socket </b><em>?options? host port</em></a></dt> <dt><b>tls::socket</b><em> ?-server command? ?options? port</em></dt> <dd>This is a helper function that utilizes the underlying commands (<strong>tls::import</strong>). It behaves exactly the same as the native Tcl <strong>socket</strong> command except that the options can include any of the applicable <a href="#tls::import"><strong>tls:import</strong></a> options with one additional option: <blockquote> <dl> <dt><strong>-autoservername</strong> <em>bool</em></dt> <dd>Automatically send the -servername as the <em>host</em> argument (<strong>default</strong>: <em>false</em>)</dd> </dl> </blockquote> <dt> </dt> <dt><a name="tls::handshake"><strong>tls::handshake</strong> <em>channel</em></a></dt> <dd>Forces handshake to take place, and returns 0 if handshake is still in progress (non-blocking), or 1 if the handshake was successful. If the handshake failed this routine will throw an error.</dd> <dt> </dt> <dt><a name="tls::status"><strong>tls::status</strong> <em>?-local? channel</em></a></dt> <dd>Returns the current security status of an SSL channel. The result is a list of key-value pairs describing the connected peer. If the result is an empty list then the SSL handshake has not yet completed. If <em>-local</em> is given, then the certificate information is the one used locally.</dd> </dl> <blockquote> <dl> <dt><strong>issuer</strong> <em>dn</em></dt> <dd>The distinguished name (DN) of the certificate issuer.</dd> <dt><strong>subject</strong> <em>dn</em></dt> <dd>The distinguished name (DN) of the certificate subject.</dd> <dt><strong>notBefore</strong> <em>date</em></dt> <dd>The begin date for the validity of the certificate.</dd> <dt><strong>notAfter</strong> <em>date</em></dt> <dd>The expiry date for the certificate.</dd> <dt><strong>serial</strong> <em>n</em></dt> <dd>The serial number of the certificate.</dd> <dt><strong>cipher</strong> <em>cipher</em></dt> <dd>The current cipher in use between the client and server channels.</dd> <dt><strong>sbits</strong> <em>n</em></dt> <dd>The number of bits used for the session key.</dd> <dt><strong>certificate</strong> <em>cert</em></dt> <dd>The PEM encoded certificate.</dd> <dt><strong>sha1_hash</strong> <em>hash</em></dt> <dd>The SHA1 hash of the certificate.</dd> <dt><strong>sha256_hash</strong> <em>hash</em></dt> <dd>The SHA256 hash of the certificate.</dd> <dt><strong>alpn</strong> <em>protocol</em></dt> <dd>The protocol selected after Application-Layer Protocol Negotiation (ALPN).</dd> <dt><strong>version</strong> <em>value</em></dt> <dd>The protocol version used for the connection: SSLv2, SSLv3, TLSv1, TLSv1.1, TLSv1.2, TLSv1.3, unknown</dd> </dl> </blockquote> <dl> <dt><a name="tls::import"><b>tls::import </b><i>channel ?options?</i></a></dt> <dd>SSL-enable a regular Tcl channel - it need not be a socket, but must provide bi-directional flow. Also setting session parameters for SSL handshake.</dd> </dl> <blockquote> <dl> <dt><strong>-alpn</strong> <em>list</em></dt> <dd>List of protocols to offer during Application-Layer Protocol Negotiation (ALPN). For example: h2, http/1.1, etc.</dd> <dt><strong>-cadir</strong> <em>dir</em></dt> <dd>Provide the directory containing the CA certificates. The default directory is platform specific and can be set at compile time. This can be overridden via the <b>SSL_CERT_DIR</b> environment variable.</dd> <dt><strong>-cafile </strong><em>filename</em></dt> <dd>Provide the CA file.</dd> <dt><strong>-certfile</strong> <em>filename</em></dt> <dd>Provide the name of a file containing certificate to use. The default name is cert.pem. This can be overridden via the <b>SSL_CERT_FILE</b> environment variable.</dd> <dt><strong>-cert</strong> <em>filename</em></dt> <dd>Provide the contents of a certificate to use, as a DER encoded binary value (X.509 DER).</dd> <dt><strong>-cipher </strong><em>string</em></dt> <dd>Provide the cipher suites to use. Syntax is as per OpenSSL.</dd> <dt><strong>-command</strong> <em>callback</em></dt> <dd>If specified, this callback will be invoked at several points during the OpenSSL handshake. It can pass errors and tracing information, and it can allow Tcl scripts to perform their own validation of the certificate in place of the default validation provided by OpenSSL. <br> See <a href="#CALLBACK OPTIONS">CALLBACK OPTIONS</a> for further discussion.</dd> <dt><strong>-dhparams </strong><em>filename</em></dt> <dd>Provide a Diffie-Hellman parameters file.</dd> <dt><strong>-keyfile</strong> <em>filename</em></dt> <dd>Provide the private key file. (<strong>default</strong>: value of -certfile)</dd> <dt><strong>-key</strong> <em>filename</em></dt> <dd>Provide the private key to use as a DER encoded value (PKCS#1 DER)</dd> <dt><strong>-model</strong> <em>channel</em></dt> <dd>This will force this channel to share the same <em><strong>SSL_CTX</strong></em> structure as the specified <em>channel</em>, and therefore share callbacks etc.</dd> <dt><strong>-password</strong> <em>callback</em></dt> <dd>If supplied, this callback will be invoked when OpenSSL needs to obtain a password, typically to unlock the private key of a certificate. The callback should return a string which represents the password to be used. <br> See <a href="#CALLBACK OPTIONS">CALLBACK OPTIONS</a> for further discussion.</dd> <dt><strong>-request </strong><em>bool</em></dt> <dd>Request a certificate from peer during SSL handshake. (<strong>default</strong>: <em>true</em>)</dd> <dt><strong>-require</strong> <em>bool</em></dt> <dd>Require a valid certificate from peer during SSL handshake. If this is set to true then <strong>-request</strong> must also be set to true. (<strong>default</strong>: <em>false</em>)</dd> <dt><strong>-server</strong> <em>bool</em></dt> <dd>Handshake as server if true, else handshake as client.(<strong>default</strong>: <em>false</em>)</dd> <dt><strong>-servername</strong> <em>host</em></dt> <dd>Only available if the OpenSSL library the package is linked against supports the TLS hostname extension for 'Server Name Indication' (SNI). Use to name the logical host we are talking to and expecting a certificate for</dd> <dt><strong>-ssl2</strong> <em>bool</em></dt> <dd>Enable use of SSL v2. (<strong>default</strong>: <em>false</em>)</dd> <dt><strong>-ssl3 </strong><em>bool</em></dt> <dd>Enable use of SSL v3. (<strong>default</strong>: <em>false</em>)</dd> <dt>-<strong>tls1</strong> <em>bool</em></dt> <dd>Enable use of TLS v1. (<strong>default</strong>: <em>true</em>)</dd> <dt>-<strong>tls1.1</strong> <em>bool</em></dt> <dd>Enable use of TLS v1.1 (<strong>default</strong>: <em>true</em>)</dd> <dt>-<strong>tls1.2</strong> <em>bool</em></dt> <dd>Enable use of TLS v1.2 (<strong>default</strong>: <em>true</em>)</dd> <dt>-<strong>tls1.3</strong> <em>bool</em></dt> <dd>Enable use of TLS v1.3 (<strong>default</strong>: <em>true</em>)</dd> </dl> </blockquote> <dl> <dt><a name="tls::unimport"><b>tls::unimport </b><i>channel</i></a></dt> <dd>Provided for symmetry to <strong>tls::import</strong>, this unstacks the SSL-enabling of a regular Tcl channel. An error is thrown if TLS is not the top stacked channel type.</dd> </dl> <dl> <dt><a name="tls::ciphers protocol ?verbose?"><strong>tls::ciphers</strong> <em>protocol ?verbose?</em></a></dt> <dd>Returns list of supported ciphers based on the <em>protocol</em> you supply, which must be one of <em>ssl2, ssl3, or tls1</em>. If <em>verbose</em> is specified as true then a verbose, semi-human readable list is returned providing additional information on the nature of the cipher support. In each case the result is a Tcl list.</dd> </dl> <dl> <dt><a name="tls::version"><strong>tls::version</strong></a></dt> <dd>Returns the version string defined by OpenSSL.</dd> </dl> <h3><a name="CALLBACK OPTIONS">CALLBACK OPTIONS</a></h3> <p> As indicated above, individual channels can be given their own callbacks to handle intermediate processing by the OpenSSL library, using the <em>-command</em> and <em>-password</em> options passed to either of <strong>tls::socket</strong> or <strong>tls::import</strong>. </p> <blockquote> <dl> <dt><strong>-command</strong> <em>callback</em></dt> <dd> Invokes the specified <em>callback</em> script at several points during the OpenSSL handshake. Except as indicated below, values returned from the callback are ignored. Arguments appended to the script upon callback take one of the following forms: <br> <br> <dl> <!-- This form of callback is disabled. <dt> <strong>error</strong> <em>channel message</em> </dt> <dd> The <em>message</em> argument contains an error message generated by the OpenSSL function <code>ERR_reason_error_string()</code>. </dd> <br> --> <dt> <strong>info</strong> <em>channel major minor message</em> </dt> <dd> This form of callback is invoked by the OpenSSL function <code>SSL_CTX_set_info_callback()</code>. <br> The <em>major</em> and <em>minor</em> arguments are used to represent the state information bitmask. <dl> <dt>Possible values for <em>major</em> are:</dt> <dd><code>handshake, alert, connect, accept</code>.</dd> <dt>Possible values for <em>minor</em> are:</dt> <dd><code>start, done, read, write, loop, exit</code>.</dd> </dl> The <em>message</em> argument is a descriptive string which may be generated either by <code>SSL_state_string_long()</code> or by <code>SSL_alert_desc_string_long()</code>, depending on context. </dd> <br> <dt> <strong>verify</strong> <em>channel depth cert status error</em> </dt> <dd> This form of callback is invoked by the OpenSSL function <code>SSL_set_verify()</code>. <br> The <em>depth</em> argument is an integer representing the current depth on the certificate chain, with <code>0</code> as the subject certificate and higher values denoting progressively more indirect issuer certificates. <br> The <em>cert</em> argument is a list of key-value pairs similar to those returned by <a href="#tls::status"><strong>tls::status</strong></a>. <br> The <em>status</em> argument is an integer representing the current validity of the certificate. A value of <code>0</code> means the certificate is deemed invalid. A value of <code>1</code> means the certificate is deemed valid. <br> The <em>error</em> argument supplies the message, if any, generated by <code>X509_STORE_CTX_get_error()</code>. <br> <br> The callback may override normal validation processing by explicitly returning one of the above <em>status</em> values. </dd> </dl> </dd> <br> <dt><strong>-password</strong> <em>callback</em></dt> <dd> Invokes the specified <em>callback</em> script when OpenSSL needs to obtain a password. The callback should return a string which represents the password to be used. No arguments are appended to the script upon callback. </dd> </dl> </blockquote> <p> Reference implementations of these callbacks are provided in the distribution as <strong>tls::callback</strong> and <strong>tls::password</strong> respectively. Note that these are <em>sample</em> implementations only. In a more realistic deployment you would specify your own callback scripts on each TLS channel using the <em>-command</em> and <em>-password</em> options. </p> <p> The default behavior when the <em>-command</em> option is not specified is for TLS to process the associated library callbacks internally. The default behavior when the <em>-password</em> option is not specified is for TLS to process the associated library callbacks by attempting to call <strong>tls::password</strong>. The difference between these two behaviors is a consequence of maintaining compatibility with earlier implementations. </p> <p> The <strong>tls::debug</strong> variable provides some additional control over these reference callbacks. Its value is zero by default. Higher values produce more diagnostic output, and will also force the verify method in <strong>tls::callback</strong> to accept the certificate, even when it is invalid. </p> <p> <em> The use of the reference callbacks <strong>tls::callback</strong> and <strong>tls::password</strong> is not recommended. They may be removed from future releases. </em> </p> <p> <em> The use of the variable <strong>tls::debug</strong> is not recommended. It may be removed from future releases. </em> </p> <h3><a name="DEBUG">DEBUG</a></h3> TLS key logging can be enabled by setting the environment variable <b>SSLKEYLOGFILE</b> to the name of the file to log to. Then whenever TLS key material is generated or received it will be logged to the file. <h3><a name="HTTPS EXAMPLE">HTTPS EXAMPLE</a></h3> <p>This example uses a sample server.pem provided with the TLS release, courtesy of the <strong>OpenSSL</strong> project.</p> <pre><code> package require http package require tls http::register https 443 [list ::tls::socket -autoservername true -require true -cadir /etc/ssl/certs] set tok [http::geturl https://www.tcl.tk/] </code></pre> <h3><a name="SPECIAL CONSIDERATIONS">SPECIAL CONSIDERATIONS</a></h3> <p>The capabilities of this package can vary enormously based upon how your OpenSSL library was configured and built. At the most macro-level OpenSSL supports a "no patents" build, which disables RSA, IDEA, RC(2,4,5) and SSL2 - if your OpenSSL is configured this way then you will need to build TLS with the -DNO_PATENTS option - and the resultant module will function correctly and also support ADH certificate-less encryption, however you will be unable to utilize this to speak to normal Web Servers, which typically require RSA support. Please see <a href="http://www.openssl.org/">http://www.openssl.org/</a> for more information on the whole issue of patents and US export restrictions. </p> <h3><a name="SEE ALSO">SEE ALSO</a></h3> <p><strong>socket</strong>, <strong>fileevent, </strong><a href="http://www.openssl.org/"><strong>OpenSSL</strong></a></p> <hr> <pre> Copyright © 1999 Matt Newman. Copyright © 2004 Starfish Systems. </pre> </body> </html> |
Deleted gen_dh_params version [90177a1658].
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Added generic/HEADER version [9b3a71bb69].
> > > > > > > | 1 2 3 4 5 6 7 | TclTLS @@VERS@@ ========== Release Date: @@DATE@@ https://tcltls.rkeene.org/ |
Added generic/gen_dh_params version [90177a1658].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 | #! /usr/bin/env sh bits='2048' option_fallback='0' for arg in "$@"; do case "${arg}" in fallback) option_fallback='1' ;; bits=*) bits="`echo "${arg}" | cut -f 2 -d =`" ;; esac done openssl_dhparam() { if openssl dhparam -C "$@" | sed \ -e 's/^\(static \)*DH \*get_dh[0-9]*/static DH *get_dhParams/' \ -e '/^-----BEGIN DH PARAMETERS-----$/,/^-----END DH PARAMETERS-----$/ d;/^#/ d' then return 0 fi return 1 } gen_dh_params_openssl() { openssl_dhparam "${bits}" < /dev/null || return 1 return 0 } gen_dh_params_remote() { url="https://2ton.com.au/dhparam/${bits}" r_input="`curl -sS "${url}"`" || \ r_input="`wget -O - -o /dev/null "${url}"`" || return 1 if r_output="`echo "${r_input}" | openssl_dhparam`"; then echo "${r_output}" return 0 fi return 1 } gen_dh_params_fallback() { cat << \_EOF_ DH *get_dhParams(void) { static unsigned char dhp[] = { _EOF_ case "${bits}" in 2048) cat << \_EOF_ 0xC1,0x51,0x58,0x69,0xFB,0xE8,0x6C,0x47,0x2B,0x86,0x61,0x4F, 0x20,0x2E,0xD3,0xFC,0x19,0xEE,0xB8,0xF3,0x35,0x7D,0xBA,0x86, 0x2A,0xC3,0xC8,0x6E,0xF4,0x99,0x75,0x65,0xD3,0x7A,0x9E,0xDF, 0xD4,0x1F,0x88,0xE3,0x17,0xFC,0xA1,0xED,0xA2,0xB6,0x77,0x84, 0xAA,0x08,0xF2,0x97,0x59,0x7A,0xA0,0x03,0x0D,0x3E,0x7E,0x6D, 0x65,0x6A,0xA4,0xEA,0x54,0xA9,0x52,0x5F,0x63,0xB4,0xBC,0x98, 0x4E,0xF6,0xE1,0xA4,0xEE,0x16,0x0A,0xB0,0x01,0xBD,0x9F,0xA1, 0xE8,0x23,0x29,0x56,0x40,0x95,0x13,0xEB,0xCB,0xD5,0xFC,0x76, 0x1A,0x41,0x26,0xCE,0x20,0xEB,0x30,0x10,0x17,0x07,0xE1,0x8C, 0xAC,0x57,0x37,0x8B,0xE8,0x01,0xDE,0xA9,0xEF,0xA4,0xC2,0xA4, 0x6E,0x48,0x25,0x11,0x33,0x11,0xD4,0x52,0x79,0x87,0x9F,0x75, 0x61,0xF7,0x9C,0x7D,0x36,0x41,0xCB,0xEC,0x8F,0xEA,0x4A,0x47, 0x6A,0x36,0x37,0x75,0xB9,0x8E,0xF5,0x5F,0x67,0xCF,0x1F,0xD8, 0xCA,0x70,0x42,0xC7,0xA2,0xED,0x0F,0x7D,0xBE,0x43,0x08,0x28, 0x66,0x3D,0xDD,0x87,0x0D,0x61,0x6E,0xD0,0xE7,0x49,0xD1,0x70, 0xA9,0x4D,0xD5,0xFD,0xED,0xF2,0x6D,0x32,0x17,0x97,0x5B,0x06, 0x60,0x9C,0x5F,0xA3,0x5D,0x34,0x14,0x7E,0x63,0x54,0xE4,0x7E, 0x09,0x8F,0xBB,0x8E,0xA0,0xD0,0x96,0xAC,0x30,0x20,0x39,0x3B, 0x8C,0x92,0x65,0x37,0x0A,0x8F,0xEC,0x72,0x8B,0x61,0x7D,0x62, 0x24,0x54,0xE9,0x1D,0x01,0x68,0x89,0xC4,0x7B,0x3C,0x48,0x62, 0x9B,0x83,0x11,0x3A,0x0B,0x0D,0xEF,0x5A,0xE4,0x7A,0xA0,0x69, 0xF4,0x54,0xB5,0x5B _EOF_ ;; 4096) cat << \_EOF_ 0xE3,0xA6,0x64,0x2D,0xE8,0x01,0xD0,0x81,0x67,0xCF,0x12,0x38, 0x5C,0x99,0x48,0x37,0xD7,0x0F,0x8D,0x10,0xEA,0x88,0x31,0x6D, 0xD4,0x69,0x10,0x57,0x94,0x8E,0xE8,0xF9,0x22,0xFE,0x0D,0x55, 0xC6,0x9D,0x29,0x7E,0x45,0x89,0xAA,0xD5,0x98,0xD2,0x98,0xFE, 0x03,0x54,0x5E,0x91,0x4C,0x4A,0xA7,0xFF,0x1F,0x2F,0x41,0x34, 0x03,0x9B,0x64,0x0A,0xFA,0x53,0xC7,0x45,0xD7,0x41,0x3F,0x16, 0xCD,0x40,0x9E,0xF2,0xC3,0xBD,0x49,0x2C,0x0C,0x35,0x9B,0x2F, 0x7D,0xA5,0x07,0x58,0xD1,0xFD,0xE9,0x6B,0x7A,0x54,0xA9,0xC2, 0xAC,0x09,0x7F,0x58,0xD5,0x52,0xB2,0x8A,0x5D,0xEC,0x41,0x23, 0x93,0xF4,0x05,0x8B,0x46,0x0E,0x46,0x46,0xC5,0xB4,0x75,0xCB, 0x1D,0x1D,0x6E,0x81,0xC5,0x55,0x24,0x1D,0x09,0x23,0xE2,0x3F, 0xF4,0x48,0x60,0xD7,0x95,0xC0,0x8B,0x71,0x11,0xA6,0x0B,0x04, 0x29,0xB6,0xAD,0xBF,0x05,0x6F,0x3B,0xB3,0x70,0x34,0xA5,0xF9, 0x14,0x81,0xD5,0xEA,0x3C,0x3C,0x38,0x44,0xCF,0x3D,0x32,0x29, 0x92,0xD5,0x1A,0x3C,0x25,0xB7,0x3D,0x42,0x17,0x96,0x8B,0xEE, 0xC3,0xE7,0x61,0x3A,0x51,0xC5,0x2A,0x51,0xBA,0x8F,0xD0,0x4C, 0x51,0x19,0xBE,0x35,0x1A,0x2E,0x9B,0x55,0x02,0xA7,0x5A,0xBF, 0xA2,0x00,0xF9,0xFF,0x4B,0xCA,0x76,0x25,0x3D,0x3B,0xB1,0x04, 0x9A,0x6D,0x7E,0x12,0xBB,0xBE,0x6A,0x5A,0xB2,0x87,0x8B,0xBC, 0xB9,0x7C,0x6A,0xE7,0x5E,0xC3,0x41,0x91,0x24,0xAD,0x5C,0xC7, 0x3F,0x24,0x77,0x17,0x53,0x9D,0x6A,0x5A,0x8E,0x39,0x00,0x1B, 0x49,0x93,0x07,0x6C,0x67,0xF3,0x1C,0x24,0x57,0x76,0x5E,0x78, 0xF1,0x8D,0x81,0xFF,0x81,0xD0,0x1B,0x7A,0x04,0xAC,0x7D,0x5B, 0x35,0x5F,0x45,0x25,0xAE,0x30,0x11,0x5B,0x34,0x17,0xE7,0x2D, 0x9D,0xE7,0x56,0x90,0x75,0x24,0x0C,0x01,0x84,0x38,0x1A,0x62, 0x55,0x43,0x66,0x21,0x29,0x44,0xE5,0x4B,0x90,0x9E,0x48,0x92, 0x0B,0x96,0x2A,0xD0,0xCD,0x3A,0xA4,0xBE,0xE7,0xDC,0xA3,0xFB, 0x0F,0xA3,0x9B,0xF7,0xA9,0x26,0x5A,0xCC,0x7F,0x4B,0x1A,0x5F, 0xD6,0x32,0xA9,0x71,0xA1,0x10,0xE5,0x7C,0x4F,0x59,0xFE,0x3D, 0x60,0x41,0x0A,0xA7,0x68,0x60,0x1E,0xDE,0x6E,0xF7,0x71,0x4D, 0xBE,0xC8,0x49,0xF8,0x57,0x7C,0x99,0x6E,0x59,0x32,0xF8,0x26, 0xF1,0x25,0x94,0xC5,0xDA,0x78,0xBB,0x48,0x97,0xE8,0xDF,0x70, 0x05,0x86,0xE2,0xE7,0x35,0xD7,0x3F,0x23,0x18,0xAA,0x86,0x53, 0x6B,0x0D,0xEC,0x93,0x89,0xA4,0xD0,0xDA,0xE3,0xDD,0x11,0x06, 0xCE,0xDD,0x4D,0xD3,0xBF,0x9A,0x71,0x5E,0xA7,0x39,0x9A,0x31, 0x4B,0x56,0xB3,0x22,0x1B,0x81,0xDC,0xBE,0x0E,0x7B,0x8A,0xAA, 0x37,0x61,0xED,0x4D,0xEE,0x1A,0xC3,0x54,0xBC,0x4F,0x0E,0x61, 0x38,0x00,0xAA,0x45,0x18,0xC2,0xDF,0xA5,0x3D,0x75,0x98,0x16, 0xBB,0x0A,0x39,0x9A,0xFE,0x1F,0x53,0xAD,0xC3,0xEA,0xDF,0xC6, 0x3D,0xD5,0xBA,0xC8,0xF3,0x03,0x3A,0x3B,0x8D,0x03,0x84,0xCD, 0x86,0xED,0x42,0xDB,0xD8,0xE0,0xC1,0xAF,0xB1,0xDD,0xB5,0x35, 0x28,0xB1,0x02,0xE2,0x9B,0x12,0x2E,0x12,0x02,0x1C,0x7D,0x3B, 0x3B,0x8D,0xAF,0x9D,0x3F,0xD6,0xE0,0x53 _EOF_ ;; 8192) cat << \_EOF_ 0x9C,0xC3,0x9C,0x6C,0x61,0xC5,0xFA,0x32,0xB8,0x86,0x5A,0x38, 0xED,0x46,0x5C,0x81,0x08,0xD9,0x69,0x11,0x44,0x50,0x97,0x4D, 0xCB,0x09,0xFC,0xD1,0x68,0x9F,0x4E,0x96,0x10,0xFF,0xDA,0xD7, 0xA3,0xC9,0x74,0xE9,0xBA,0xDB,0x6B,0x04,0xB8,0xBF,0xF4,0x72, 0x6D,0x18,0xB1,0xF4,0x9A,0x77,0xA9,0x94,0xE8,0x13,0xF7,0x1D, 0x92,0x12,0x7B,0xB9,0x92,0x71,0x54,0x83,0x73,0x71,0xF6,0xA7, 0x12,0xEC,0x62,0xB8,0xDC,0xA1,0x2E,0x00,0x88,0x53,0xF3,0x01, 0xAF,0x52,0xF7,0xBB,0xE1,0x7B,0xF1,0x2A,0xD9,0xEF,0x21,0xD4, 0x88,0x18,0xEC,0x98,0x72,0x05,0x60,0xEC,0x5A,0x1C,0x2D,0x0D, 0x43,0x5D,0x19,0xD6,0x1D,0xD2,0x3C,0x8E,0xD3,0x43,0x62,0x6C, 0x32,0x14,0x40,0xD6,0xBE,0xE7,0x84,0x6E,0x76,0xA5,0x90,0x14, 0xC8,0x40,0xA3,0x2E,0x6A,0x3D,0x3B,0x43,0x5D,0xB1,0x3F,0x5F, 0x6E,0xD5,0x1B,0xE0,0x20,0x82,0x8A,0xEE,0xC5,0x65,0x05,0x62, 0xB5,0x96,0xEE,0x27,0xF1,0xF3,0x32,0xE4,0x00,0x7D,0x6A,0x6C, 0x45,0x05,0x00,0x4A,0x9C,0x9D,0xB9,0x19,0x77,0xC5,0x31,0xEE, 0x6E,0x30,0x54,0x0D,0x08,0xFF,0x19,0xC4,0x34,0xD7,0x9F,0xC9, 0x5B,0x89,0x22,0x4E,0xC0,0xBF,0x16,0x3E,0x10,0xBB,0x58,0xBA, 0x31,0x5C,0xDC,0xD3,0xD9,0xFF,0x73,0xD9,0x29,0x66,0x4A,0xE6, 0xB0,0xBA,0x4B,0x1A,0x3C,0x5E,0xA7,0x19,0x19,0xD8,0x84,0xD2, 0x54,0x47,0x86,0xE3,0xCA,0xF7,0x8A,0xC9,0xDB,0x3A,0x5A,0xB7, 0xB7,0xA4,0x27,0x57,0x53,0x34,0x9D,0xF2,0xF2,0x26,0x0D,0xAC, 0xC5,0xFA,0xE9,0x9A,0xC5,0xDA,0x9D,0xA3,0x2E,0x40,0x85,0x92, 0xF4,0x2F,0xEA,0xF7,0xA4,0x6F,0x36,0x36,0x41,0xFA,0x41,0x5B, 0x02,0x4E,0xFC,0xDF,0xBB,0x5F,0x74,0x7B,0xFF,0x81,0xEB,0x60, 0x08,0x55,0x91,0xBF,0x0C,0x1E,0x80,0xB3,0xC3,0x39,0x5A,0x5D, 0x08,0x3E,0x3C,0xB8,0x76,0xE1,0x92,0x37,0xF1,0xCC,0x0C,0x3F, 0x46,0xED,0x51,0x2D,0x6F,0x57,0x05,0x47,0x78,0xB5,0xF1,0x6B, 0x7C,0xEA,0x51,0xA6,0x88,0xD8,0x63,0x18,0x8E,0x42,0x0E,0x50, 0xF1,0xAC,0xD0,0x75,0x0A,0xB5,0x9B,0xD5,0x07,0x3A,0xF0,0x75, 0x04,0x27,0xC5,0xBD,0xA6,0xAE,0x18,0xEE,0x30,0x22,0x70,0x56, 0x09,0xA7,0xC2,0x26,0x61,0x3B,0x56,0x27,0x82,0x97,0xF6,0xFE, 0x7A,0x3D,0x17,0x3C,0xC2,0x27,0x39,0xD3,0xBB,0x80,0xB6,0x42, 0x4D,0x20,0xB1,0xC1,0x89,0x00,0x77,0x8C,0x6F,0xDD,0x6F,0x1D, 0x44,0xAD,0x1B,0x92,0x6F,0xD6,0x56,0x11,0x6E,0x12,0x5C,0x7F, 0x69,0x33,0x17,0x7A,0x20,0xE8,0x5D,0x81,0xC0,0xDD,0x1E,0xBE, 0xEF,0x62,0x81,0xF2,0xEA,0xEA,0xDE,0x7B,0xA1,0x8C,0x7D,0x91, 0x8B,0x62,0xBD,0x13,0x53,0x41,0xB9,0x45,0x65,0x11,0xB0,0x00, 0x7C,0xA6,0x12,0x19,0xDC,0x77,0x26,0xD6,0x13,0xC8,0xDF,0x47, 0x7A,0xCE,0xEB,0xD8,0xC3,0xDF,0x7F,0x21,0x27,0x5C,0x4A,0x6B, 0xE9,0x27,0xC7,0x60,0x56,0x6E,0xA2,0x5F,0xF2,0xAD,0xB0,0xC3, 0x97,0xF6,0xE9,0xDF,0xFB,0x1F,0xE9,0x17,0x06,0x36,0xC5,0x10, 0xC0,0x49,0xD5,0x59,0xEA,0x97,0x27,0xE7,0x43,0x64,0xDE,0x31, 0xD7,0x14,0x9D,0xDC,0x78,0xC5,0x0E,0xEF,0x6A,0x76,0x57,0x33, 0xAF,0x54,0xB1,0x30,0xD0,0x91,0x24,0x09,0x24,0x40,0xD5,0x00, 0x9B,0x84,0xF7,0xFC,0xAD,0x7F,0x41,0xBB,0x00,0x84,0x49,0x49, 0xA1,0x43,0x44,0xA0,0xA3,0xD1,0xBA,0x49,0xD8,0xCE,0x60,0x90, 0x07,0x20,0xCD,0xC8,0xEB,0xD4,0x02,0x71,0xB8,0x60,0xDF,0xA9, 0x6B,0xEC,0x25,0x8D,0x71,0x28,0x6A,0x2E,0xF6,0x52,0xF0,0x24, 0xF3,0xF5,0x1E,0x00,0x7B,0x7C,0xCA,0x6A,0x6B,0xD7,0x4F,0x3E, 0x5E,0x4B,0x85,0xCF,0xF1,0x67,0x9F,0x89,0x5A,0xF4,0x3A,0x29, 0x73,0xFF,0xDC,0x68,0x25,0xA5,0x60,0x10,0xFC,0x9A,0x73,0x78, 0xEA,0x28,0xC1,0x11,0x3B,0x07,0x46,0xEB,0xDE,0xF1,0xF3,0x2E, 0xC7,0xC1,0x24,0xFB,0xC2,0x6C,0x4A,0x38,0x6C,0x9A,0x7F,0x87, 0x76,0x30,0xF4,0xCC,0x21,0x49,0xC1,0x66,0x3D,0x95,0xE4,0xAA, 0xE2,0x75,0x08,0xAB,0xEF,0xA2,0x51,0x30,0xFE,0x86,0xD0,0xE1, 0x4C,0x05,0x0C,0xDE,0x63,0x93,0xB3,0x37,0x11,0x81,0xB5,0x8F, 0x84,0xE2,0x48,0xC1,0xF6,0xF6,0xD6,0x50,0x91,0xDE,0x61,0x14, 0x7B,0x6E,0x88,0x95,0x30,0x52,0xEF,0xA5,0x03,0x99,0xBE,0x50, 0x97,0xE3,0x25,0x8F,0x50,0x01,0x9C,0x54,0x99,0x2E,0x4C,0x6A, 0x61,0xD7,0x0D,0xB9,0xFE,0xE9,0xFC,0x37,0xC1,0x6A,0xDF,0x84, 0xF4,0x5A,0x7E,0xBA,0x95,0x23,0x5C,0x41,0x35,0xDB,0xF9,0x1E, 0x93,0xC6,0x29,0x8E,0x57,0x28,0x3D,0x3A,0xDE,0x31,0x86,0x69, 0x3D,0xC3,0x8F,0x27,0x62,0x84,0x77,0x58,0x02,0x7F,0x90,0x76, 0x2D,0xDF,0x45,0x70,0x3F,0x04,0x44,0x5C,0xD1,0x8C,0x73,0x5E, 0xB5,0xC8,0x9A,0x72,0x3E,0xA9,0x4D,0xFC,0xDC,0xAC,0x7B,0xFF, 0x54,0xC2,0x7B,0x3B,0x11,0x6B,0x14,0xA3,0x50,0xDB,0x14,0xB0, 0x89,0x5A,0xE7,0xDD,0xBF,0x1E,0x27,0xBC,0xC6,0x30,0xC4,0xD6, 0x74,0x13,0x26,0xBA,0x67,0x15,0x56,0x42,0xED,0xDA,0xFF,0x9F, 0x4B,0xBE,0x3E,0xBC,0xD0,0xA8,0xCA,0xB1,0x8E,0xB7,0xD0,0xFF, 0xE0,0x87,0x67,0xE4,0x51,0xA4,0xB9,0xF3,0x47,0xFA,0x13,0xFA, 0xB1,0xDA,0xB6,0xF8,0xEC,0x6D,0x0B,0x2E,0x99,0x37,0xB8,0x66, 0x80,0x83,0x3A,0xCA,0x46,0x6D,0xDC,0x24,0x9F,0x83,0x54,0xA9, 0x70,0x62,0x21,0x6D,0x28,0x0E,0x63,0x8B,0x91,0x7F,0xFF,0xCD, 0x80,0xF5,0xAC,0xE6,0x90,0x97,0x3C,0xB5,0xE8,0x00,0x90,0x96, 0xB7,0x26,0x2C,0xB2,0x9C,0xEF,0xBF,0xCC,0xD6,0xA8,0x01,0xA0, 0xFC,0x20,0x61,0xBD,0xA9,0xEE,0x5F,0x8B,0x32,0x1C,0x62,0xF0, 0x94,0x81,0x86,0x30,0x1B,0xB1,0x12,0xF5,0x58,0x52,0x8D,0xE4, 0x99,0x43,0x60,0x9B,0x24,0xF8,0x8B,0x14,0x63,0x0C,0x93,0xF4, 0x7A,0x70,0x0A,0xE1,0x45,0x16,0x92,0x9D,0x12,0x50,0x05,0x3C, 0x05,0xEE,0x40,0x32,0x4D,0x99,0xFF,0xF6,0x14,0x25,0xF6,0xDF, 0xD8,0xDA,0xE0,0x85,0x1B,0x3F,0x2C,0x50,0xD9,0x01,0x4B,0x01, 0x65,0x2C,0x75,0x32,0xBA,0x6F,0x00,0x56,0xD3,0x83,0xC8,0x44, 0x9B,0x62,0x3F,0x88,0xA7,0x18,0xAC,0x69,0xBB,0xF3,0x14,0xD3, 0xA4,0x09,0x6C,0x4A,0x14,0x0C,0x55,0x95,0x7A,0x33,0x21,0x99, 0x0F,0x01,0x00,0x5D,0x2D,0xAB,0xEB,0x7A,0x76,0x03,0xE7,0x2A, 0x1D,0xC2,0x86,0x4B _EOF_ ;; *) return 1 ;; esac cat << \_EOF_ }; static unsigned char dhg[] = { 0x02, }; DH *dh = DH_new();; BIGNUM *dhp_bn, *dhg_bn; if (dh == NULL) { return NULL; } dhp_bn = BN_bin2bn(dhp, sizeof (dhp), NULL); dhg_bn = BN_bin2bn(dhg, sizeof (dhg), NULL); #ifdef TCLTLS_OPENSSL_PRE_1_1_API dh->p = dhp_bn; dh->g = dhg_bn; if (dhp_bn == NULL || dhg_bn == NULL) { #else if (dhp_bn == NULL || dhg_bn == NULL || !DH_set0_pqg(dh, dhp_bn, NULL, dhg_bn)) { #endif DH_free(dh); BN_free(dhp_bn); BN_free(dhg_bn); return(NULL); } return(dh); } _EOF_ return 0 } # Enable support for giving the same DH params each time if [ "${option_fallback}" = '1' ]; then gen_dh_params_fallback && exit 0 echo "Unable to generate fallback parameters for DH of ${bits} bits" >&2 exit 1 fi echo "*****************************" >&2 echo "** Generating DH Primes. **" >&2 echo "** This will take a while. **" >&2 echo "*****************************" >&2 echo "Use OpenSSL" >&2 gen_dh_params_openssl && exit 0 echo "Use Remote" >&2 gen_dh_params_remote && exit 0 echo "Use fallback" >&2 gen_dh_params_fallback && exit 0 echo "Unable to generate parameters for DH of ${bits} bits" >&2 exit 1 |
Added generic/tclOpts.h version [26b0fd21c2].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | /* * Copyright (C) 1997-2000 Matt Newman <[email protected]> * * Stylized option processing - requires consistent * external vars: opt, idx, objc, objv */ #ifndef _TCL_OPTS_H #define _TCL_OPTS_H #define OPT_PROLOG(option) \ if (strcmp(opt, (option)) == 0) { \ if (++idx >= objc) { \ Tcl_AppendResult(interp, \ "no argument given for ", \ (option), " option", \ (char *) NULL); \ return TCL_ERROR; \ } #define OPT_POSTLOG() \ continue; \ } #define OPTOBJ(option, var) \ OPT_PROLOG(option) \ var = objv[idx]; \ OPT_POSTLOG() #define OPTSTR(option, var) \ OPT_PROLOG(option) \ var = Tcl_GetStringFromObj(objv[idx], NULL);\ OPT_POSTLOG() #define OPTINT(option, var) \ OPT_PROLOG(option) \ if (Tcl_GetIntFromObj(interp, objv[idx], \ &(var)) != TCL_OK) { \ return TCL_ERROR; \ } \ OPT_POSTLOG() #define OPTBOOL(option, var) \ OPT_PROLOG(option) \ if (Tcl_GetBooleanFromObj(interp, objv[idx],\ &(var)) != TCL_OK) { \ return TCL_ERROR; \ } \ OPT_POSTLOG() #define OPTBYTE(option, var, lvar) \ OPT_PROLOG(option) \ var = Tcl_GetByteArrayFromObj(objv[idx], &(lvar));\ OPT_POSTLOG() #define OPTBAD(type, list) \ Tcl_AppendResult(interp, "bad ", (type), \ " \"", opt, "\": must be ", \ (list), (char *) NULL) #endif /* _TCL_OPTS_H */ |
Added generic/tcltls.syms.in version [f4a8c433c1].
> | 1 | @SYMPREFIX@Tls_Init |
Added generic/tcltls.vers version [f9f493f912].
> > > > > > | 1 2 3 4 5 6 | { global: Tls_Init; local: *; }; |
Added generic/tls.c version [4c6200b506].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > 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2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 | /* * Copyright (C) 1997-1999 Matt Newman <[email protected]> * some modifications: * Copyright (C) 2000 Ajuba Solutions * Copyright (C) 2002 ActiveState Corporation * Copyright (C) 2004 Starfish Systems * * TLS (aka SSL) Channel - can be layered on any bi-directional * Tcl_Channel (Note: Requires Trf Core Patch) * * This was built (almost) from scratch based upon observation of * OpenSSL 0.9.2B * * Addition credit is due for Andreas Kupries ([email protected]), for * providing the Tcl_ReplaceChannel mechanism and working closely with me * to enhance it to support full fileevent semantics. * * Also work done by the follow people provided the impetus to do this "right": * tclSSL (Colin McCormack, Shared Technology) * SSLtcl (Peter Antman) * */ #include "tlsInt.h" #include "tclOpts.h" #include <stdio.h> #include <stdlib.h> #include <openssl/rsa.h> /* * External functions */ /* * Forward declarations */ #define F2N(key, dsp) \ (((key) == NULL) ? (char *) NULL : \ Tcl_TranslateFileName(interp, (key), (dsp))) #define REASON() ERR_reason_error_string(ERR_get_error()) static SSL_CTX *CTX_Init(State *statePtr, int isServer, int proto, char *key, char *certfile, unsigned char *key_asn1, unsigned char *cert_asn1, int key_asn1_len, int cert_asn1_len, char *CAdir, char *CAfile, char *ciphers, char *DHparams); static int TlsLibInit(int uninitialize); #define TLS_PROTO_SSL2 0x01 #define TLS_PROTO_SSL3 0x02 #define TLS_PROTO_TLS1 0x04 #define TLS_PROTO_TLS1_1 0x08 #define TLS_PROTO_TLS1_2 0x10 #define TLS_PROTO_TLS1_3 0x20 #define ENABLED(flag, mask) (((flag) & (mask)) == (mask)) #define SSLKEYLOGFILE "SSLKEYLOGFILE" /* * Static data structures */ #ifndef OPENSSL_NO_DH #include "dh_params.h" #endif /* * We lose the tcl password callback when we use the RSA BSAFE SSL-C 1.1.2 * libraries instead of the current OpenSSL libraries. */ #ifdef BSAFE #define PRE_OPENSSL_0_9_4 1 #endif /* * Pre OpenSSL 0.9.4 Compat */ #ifndef STACK_OF #define STACK_OF(x) STACK #define sk_SSL_CIPHER_num(sk) sk_num((sk)) #define sk_SSL_CIPHER_value(sk, index) (SSL_CIPHER*)sk_value((sk), (index)) #endif /* * Thread-Safe TLS Code */ #ifdef TCL_THREADS #define OPENSSL_THREAD_DEFINES #include <openssl/opensslconf.h> #ifdef OPENSSL_THREADS #include <openssl/crypto.h> /* Added */ #include <openssl/ssl.h> /* * Threaded operation requires locking callbacks * Based from /crypto/cryptlib.c of OpenSSL and NSOpenSSL. */ static Tcl_Mutex *locks = NULL; static int locksCount = 0; static Tcl_Mutex init_mx; # if OPENSSL_VERSION_NUMBER < 0x10100000L void CryptoThreadLockCallback(int mode, int n, const char *file, int line) { if (mode & CRYPTO_LOCK) { /* This debugging is turned off by default -- it's too noisy. */ /* dprintf("Called to lock (n=%i of %i)", n, locksCount); */ Tcl_MutexLock(&locks[n]); } else { /* dprintf("Called to unlock (n=%i of %i)", n, locksCount); */ Tcl_MutexUnlock(&locks[n]); } /* dprintf("Returning"); */ return; file = file; line = line; } unsigned long CryptoThreadIdCallback(void) { unsigned long ret; dprintf("Called"); ret = (unsigned long) Tcl_GetCurrentThread(); dprintf("Returning %lu", ret); return(ret); } #endif #endif /* OPENSSL_THREADS */ #endif /* TCL_THREADS */ /* *------------------------------------------------------------------- * * InfoCallback -- * * monitors SSL connection process * * Results: * None * * Side effects: * Calls callback (if defined) *------------------------------------------------------------------- */ static void InfoCallback(const SSL *ssl, int where, int ret) { State *statePtr = (State*)SSL_get_app_data((SSL *)ssl); Tcl_Obj *cmdPtr; char *major; char *minor; dprintf("Called"); if (statePtr->callback == (Tcl_Obj*)NULL) return; cmdPtr = Tcl_DuplicateObj(statePtr->callback); #if 0 if (where & SSL_CB_ALERT) { sev = SSL_alert_type_string_long(ret); if (strcmp(sev, "fatal")==0) { /* Map to error */ Tls_Error(statePtr, SSL_ERROR(ssl, 0)); return; } } #endif if (where & SSL_CB_HANDSHAKE_START) { major = "handshake"; minor = "start"; } else if (where & SSL_CB_HANDSHAKE_DONE) { major = "handshake"; minor = "done"; } else { if (where & SSL_CB_ALERT) major = "alert"; else if (where & SSL_ST_CONNECT) major = "connect"; else if (where & SSL_ST_ACCEPT) major = "accept"; else major = "unknown"; if (where & SSL_CB_READ) minor = "read"; else if (where & SSL_CB_WRITE) minor = "write"; else if (where & SSL_CB_LOOP) minor = "loop"; else if (where & SSL_CB_EXIT) minor = "exit"; else minor = "unknown"; } Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj("info", -1)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(major, -1)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(minor, -1)); if (where & (SSL_CB_LOOP|SSL_CB_EXIT)) { Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(SSL_state_string_long(ssl), -1)); } else if (where & SSL_CB_ALERT) { const char *cp = (char *) SSL_alert_desc_string_long(ret); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(cp, -1)); } else { Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(SSL_state_string_long(ssl), -1)); } Tcl_Preserve((ClientData) statePtr->interp); Tcl_Preserve((ClientData) statePtr); Tcl_IncrRefCount(cmdPtr); (void) Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL); Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) statePtr); Tcl_Release((ClientData) statePtr->interp); } /* *------------------------------------------------------------------- * * VerifyCallback -- * * Monitors SSL certificate validation process. * This is called whenever a certificate is inspected * or decided invalid. * * Results: * A callback bound to the socket may return one of: * 0 - the certificate is deemed invalid * 1 - the certificate is deemed valid * empty string - no change to certificate validation * * Side effects: * The err field of the currently operative State is set * to a string describing the SSL negotiation failure reason *------------------------------------------------------------------- */ static int VerifyCallback(int ok, X509_STORE_CTX *ctx) { Tcl_Obj *cmdPtr, *result; char *errStr, *string; int length; SSL *ssl = (SSL*)X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx()); X509 *cert = X509_STORE_CTX_get_current_cert(ctx); State *statePtr = (State*)SSL_get_app_data(ssl); int depth = X509_STORE_CTX_get_error_depth(ctx); int err = X509_STORE_CTX_get_error(ctx); int code; dprintf("Verify: %d", ok); if (!ok) { errStr = (char*)X509_verify_cert_error_string(err); } else { errStr = (char *)0; } if (statePtr->callback == (Tcl_Obj*)NULL) { if (statePtr->vflags & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) { return ok; } else { return 1; } } cmdPtr = Tcl_DuplicateObj(statePtr->callback); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj("verify", -1)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewIntObj(depth)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tls_NewX509Obj(statePtr->interp, cert)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewIntObj(ok)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(errStr ? errStr : "", -1)); Tcl_Preserve((ClientData) statePtr->interp); Tcl_Preserve((ClientData) statePtr); statePtr->flags |= TLS_TCL_CALLBACK; Tcl_IncrRefCount(cmdPtr); code = Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL); if (code != TCL_OK) { /* It got an error - reject the certificate. */ #if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6) Tcl_BackgroundError(statePtr->interp); #else Tcl_BackgroundException(statePtr->interp, code); #endif ok = 0; } else { result = Tcl_GetObjResult(statePtr->interp); string = Tcl_GetStringFromObj(result, &length); /* An empty result leaves verification unchanged. */ if (string != NULL && length > 0) { code = Tcl_GetIntFromObj(statePtr->interp, result, &ok); if (code != TCL_OK) { #if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6) Tcl_BackgroundError(statePtr->interp); #else Tcl_BackgroundException(statePtr->interp, code); #endif ok = 0; } } } Tcl_DecrRefCount(cmdPtr); statePtr->flags &= ~(TLS_TCL_CALLBACK); Tcl_Release((ClientData) statePtr); Tcl_Release((ClientData) statePtr->interp); return(ok); /* By default, leave verification unchanged. */ } /* *------------------------------------------------------------------- * * Tls_Error -- * * Calls callback with $fd and $msg - so the callback can decide * what to do with errors. * * Side effects: * The err field of the currently operative State is set * to a string describing the SSL negotiation failure reason *------------------------------------------------------------------- */ void Tls_Error(State *statePtr, char *msg) { Tcl_Obj *cmdPtr; int code; dprintf("Called"); if (msg && *msg) { Tcl_SetErrorCode(statePtr->interp, "SSL", msg, (char *)NULL); } else { msg = Tcl_GetStringFromObj(Tcl_GetObjResult(statePtr->interp), NULL); } statePtr->err = msg; if (statePtr->callback == (Tcl_Obj*)NULL) { char buf[BUFSIZ]; sprintf(buf, "SSL channel \"%s\": error: %s", Tcl_GetChannelName(statePtr->self), msg); Tcl_SetResult(statePtr->interp, buf, TCL_VOLATILE); #if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6) Tcl_BackgroundError(statePtr->interp); #else Tcl_BackgroundException(statePtr->interp, TCL_ERROR); #endif return; } cmdPtr = Tcl_DuplicateObj(statePtr->callback); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj("error", -1)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(Tcl_GetChannelName(statePtr->self), -1)); Tcl_ListObjAppendElement(statePtr->interp, cmdPtr, Tcl_NewStringObj(msg, -1)); Tcl_Preserve((ClientData) statePtr->interp); Tcl_Preserve((ClientData) statePtr); Tcl_IncrRefCount(cmdPtr); code = Tcl_EvalObjEx(statePtr->interp, cmdPtr, TCL_EVAL_GLOBAL); if (code != TCL_OK) { #if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6) Tcl_BackgroundError(statePtr->interp); #else Tcl_BackgroundException(statePtr->interp, code); #endif } Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) statePtr); Tcl_Release((ClientData) statePtr->interp); } void KeyLogCallback(const SSL *ssl, const char *line) { char *str = getenv(SSLKEYLOGFILE); FILE *fd; if (str) { fd = fopen(str, "a"); fprintf(fd, "%s\n",line); fclose(fd); } } /* *------------------------------------------------------------------- * * PasswordCallback -- * * Called when a password is needed to unpack RSA and PEM keys. * Evals any bound password script and returns the result as * the password string. *------------------------------------------------------------------- */ #ifdef PRE_OPENSSL_0_9_4 /* * No way to handle user-data therefore no way without a global * variable to access the Tcl interpreter. */ static int PasswordCallback(char *buf, int size, int verify) { return -1; buf = buf; size = size; verify = verify; } #else static int PasswordCallback(char *buf, int size, int verify, void *udata) { State *statePtr = (State *) udata; Tcl_Interp *interp = statePtr->interp; Tcl_Obj *cmdPtr; int code; dprintf("Called"); if (statePtr->password == NULL) { if (Tcl_EvalEx(interp, "tls::password", -1, TCL_EVAL_GLOBAL) == TCL_OK) { char *ret = (char *) Tcl_GetStringResult(interp); strncpy(buf, ret, (size_t) size); return (int)strlen(ret); } else { return -1; } } cmdPtr = Tcl_DuplicateObj(statePtr->password); Tcl_Preserve((ClientData) interp); Tcl_Preserve((ClientData) statePtr); Tcl_IncrRefCount(cmdPtr); code = Tcl_EvalObjEx(interp, cmdPtr, TCL_EVAL_GLOBAL); if (code != TCL_OK) { #if (TCL_MAJOR_VERSION == 8) && (TCL_MINOR_VERSION < 6) Tcl_BackgroundError(interp); #else Tcl_BackgroundException(interp, code); #endif } Tcl_DecrRefCount(cmdPtr); Tcl_Release((ClientData) statePtr); if (code == TCL_OK) { char *ret = (char *) Tcl_GetStringResult(interp); if (strlen(ret) < size - 1) { strncpy(buf, ret, (size_t) size); Tcl_Release((ClientData) interp); return (int)strlen(ret); } } Tcl_Release((ClientData) interp); return -1; verify = verify; } #endif /* *------------------------------------------------------------------- * * CiphersObjCmd -- list available ciphers * * This procedure is invoked to process the "tls::ciphers" command * to list available ciphers, based upon protocol selected. * * Results: * A standard Tcl result list. * * Side effects: * constructs and destroys SSL context (CTX) * *------------------------------------------------------------------- */ static int CiphersObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { static const char *protocols[] = { "ssl2", "ssl3", "tls1", "tls1.1", "tls1.2", "tls1.3", NULL }; enum protocol { TLS_SSL2, TLS_SSL3, TLS_TLS1, TLS_TLS1_1, TLS_TLS1_2, TLS_TLS1_3, TLS_NONE }; Tcl_Obj *objPtr; SSL_CTX *ctx = NULL; SSL *ssl = NULL; STACK_OF(SSL_CIPHER) *sk; char *cp, buf[BUFSIZ]; int index, verbose = 0; dprintf("Called"); if ((objc < 2) || (objc > 3)) { Tcl_WrongNumArgs(interp, 1, objv, "protocol ?verbose?"); return TCL_ERROR; } if (Tcl_GetIndexFromObj(interp, objv[1], protocols, "protocol", 0, &index) != TCL_OK) { return TCL_ERROR; } if ((objc > 2) && Tcl_GetBooleanFromObj(interp, objv[2], &verbose) != TCL_OK) { return TCL_ERROR; } switch ((enum protocol)index) { case TLS_SSL2: #if OPENSSL_VERSION_NUMBER >= 0x10101000L || defined(NO_SSL2) || defined(OPENSSL_NO_SSL2) Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL); return TCL_ERROR; #else ctx = SSL_CTX_new(SSLv2_method()); break; #endif case TLS_SSL3: #if defined(NO_SSL3) || defined(OPENSSL_NO_SSL3) Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL); return TCL_ERROR; #else ctx = SSL_CTX_new(SSLv3_method()); break; #endif case TLS_TLS1: #if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1) Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL); return TCL_ERROR; #else ctx = SSL_CTX_new(TLSv1_method()); break; #endif case TLS_TLS1_1: #if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1) Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL); return TCL_ERROR; #else ctx = SSL_CTX_new(TLSv1_1_method()); break; #endif case TLS_TLS1_2: #if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2) Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL); return TCL_ERROR; #else ctx = SSL_CTX_new(TLSv1_2_method()); break; #endif case TLS_TLS1_3: #if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3) Tcl_AppendResult(interp, protocols[index], ": protocol not supported", NULL); return TCL_ERROR; #else ctx = SSL_CTX_new(TLS_method()); SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION); SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION); break; #endif default: break; } if (ctx == NULL) { Tcl_AppendResult(interp, REASON(), NULL); return TCL_ERROR; } ssl = SSL_new(ctx); if (ssl == NULL) { Tcl_AppendResult(interp, REASON(), NULL); SSL_CTX_free(ctx); return TCL_ERROR; } objPtr = Tcl_NewListObj(0, NULL); if (!verbose) { for (index = 0; ; index++) { cp = (char*)SSL_get_cipher_list(ssl, index); if (cp == NULL) break; Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(cp, -1)); } } else { sk = SSL_get_ciphers(ssl); for (index = 0; index < sk_SSL_CIPHER_num(sk); index++) { register size_t i; SSL_CIPHER_description(sk_SSL_CIPHER_value(sk, index), buf, sizeof(buf)); for (i = strlen(buf) - 1; i ; i--) { if ((buf[i] == ' ') || (buf[i] == '\n') || (buf[i] == '\r') || (buf[i] == '\t')) { buf[i] = '\0'; } else { break; } } Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(buf, -1)); } } SSL_free(ssl); SSL_CTX_free(ctx); Tcl_SetObjResult(interp, objPtr); return TCL_OK; clientData = clientData; } /* *------------------------------------------------------------------- * * HandshakeObjCmd -- * * This command is used to verify whether the handshake is complete * or not. * * Results: * A standard Tcl result. 1 means handshake complete, 0 means pending. * * Side effects: * May force SSL negotiation to take place. * *------------------------------------------------------------------- */ static int HandshakeObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { Tcl_Channel chan; /* The channel to set a mode on. */ State *statePtr; /* client state for ssl socket */ const char *errStr = NULL; int ret = 1; int err = 0; dprintf("Called"); if (objc != 2) { Tcl_WrongNumArgs(interp, 1, objv, "channel"); return(TCL_ERROR); } chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL), NULL); if (chan == (Tcl_Channel) NULL) { return(TCL_ERROR); } /* * Make sure to operate on the topmost channel */ chan = Tcl_GetTopChannel(chan); if (Tcl_GetChannelType(chan) != Tls_ChannelType()) { Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan), "\": not a TLS channel", NULL); return(TCL_ERROR); } statePtr = (State *)Tcl_GetChannelInstanceData(chan); dprintf("Calling Tls_WaitForConnect"); ret = Tls_WaitForConnect(statePtr, &err, 1); dprintf("Tls_WaitForConnect returned: %i", ret); if (ret < 0 && ((statePtr->flags & TLS_TCL_ASYNC) && (err == EAGAIN))) { dprintf("Async set and err = EAGAIN"); ret = 0; } else if (ret < 0) { errStr = statePtr->err; Tcl_ResetResult(interp); Tcl_SetErrno(err); if (!errStr || (*errStr == 0)) { errStr = Tcl_PosixError(interp); } Tcl_AppendResult(interp, "handshake failed: ", errStr, (char *) NULL); dprintf("Returning TCL_ERROR with handshake failed: %s", errStr); return(TCL_ERROR); } else { if (err != 0) { dprintf("Got an error with a completed handshake: err = %i", err); } ret = 1; } dprintf("Returning TCL_OK with data \"%i\"", ret); Tcl_SetObjResult(interp, Tcl_NewIntObj(ret)); return(TCL_OK); clientData = clientData; } /* *------------------------------------------------------------------- * * ImportObjCmd -- * * This procedure is invoked to process the "ssl" command * * The ssl command pushes SSL over a (newly connected) tcp socket * * Results: * A standard Tcl result. * * Side effects: * May modify the behavior of an IO channel. * *------------------------------------------------------------------- */ static int ImportObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { Tcl_Channel chan; /* The channel to set a mode on. */ State *statePtr; /* client state for ssl socket */ SSL_CTX *ctx = NULL; Tcl_Obj *script = NULL; Tcl_Obj *password = NULL; Tcl_DString upperChannelTranslation, upperChannelBlocking, upperChannelEncoding, upperChannelEOFChar; int idx, len; int flags = TLS_TCL_INIT; int server = 0; /* is connection incoming or outgoing? */ char *keyfile = NULL; char *certfile = NULL; unsigned char *key = NULL; int key_len = 0; unsigned char *cert = NULL; int cert_len = 0; char *ciphers = NULL; char *CAfile = NULL; char *CAdir = NULL; char *DHparams = NULL; char *model = NULL; #ifndef OPENSSL_NO_TLSEXT char *servername = NULL; /* hostname for Server Name Indication */ Tcl_Obj *alpn = NULL; #endif int ssl2 = 0, ssl3 = 0; int tls1 = 1, tls1_1 = 1, tls1_2 = 1, tls1_3 = 1; int proto = 0; int verify = 0, require = 0, request = 1; dprintf("Called"); #if OPENSSL_VERSION_NUMBER < 0x10100000L && !defined(OPENSSL_NO_SSL2) && defined(NO_TLS1) && defined(NO_TLS1_1) && defined(NO_TLS1_2) && defined(NO_TLS1_3) && defined(NO_SSL3) && !defined(NO_SSL2) ssl2 = 1; #endif #if !defined(OPENSSL_NO_SSL3) && defined(NO_TLS1) && defined(NO_TLS1_1) && defined(NO_TLS1_2) && defined(NO_TLS1_3) && defined(NO_SSL2) && !defined(NO_SSL3) ssl3 = 1; #endif #if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1) tls1 = 0; #endif #if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1) tls1_1 = 0; #endif #if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2) tls1_2 = 0; #endif #if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3) tls1_3 = 0; #endif if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "channel ?options?"); return TCL_ERROR; } chan = Tcl_GetChannel(interp, Tcl_GetStringFromObj(objv[1], NULL), NULL); if (chan == (Tcl_Channel) NULL) { return TCL_ERROR; } /* * Make sure to operate on the topmost channel */ chan = Tcl_GetTopChannel(chan); for (idx = 2; idx < objc; idx++) { char *opt = Tcl_GetStringFromObj(objv[idx], NULL); if (opt[0] != '-') break; OPTSTR("-cadir", CAdir); OPTSTR("-cafile", CAfile); OPTSTR("-certfile", certfile); OPTSTR("-cipher", ciphers); OPTOBJ("-command", script); OPTSTR("-dhparams", DHparams); OPTSTR("-keyfile", keyfile); OPTSTR("-model", model); OPTOBJ("-password", password); OPTBOOL("-require", require); OPTBOOL("-request", request); OPTBOOL("-server", server); #ifndef OPENSSL_NO_TLSEXT OPTSTR("-servername", servername); OPTOBJ("-alpn", alpn); #endif OPTBOOL("-ssl2", ssl2); OPTBOOL("-ssl3", ssl3); OPTBOOL("-tls1", tls1); OPTBOOL("-tls1.1", tls1_1); OPTBOOL("-tls1.2", tls1_2); OPTBOOL("-tls1.3", tls1_3); OPTBYTE("-cert", cert, cert_len); OPTBYTE("-key", key, key_len); OPTBAD("option", "-alpn, -cadir, -cafile, -cert, -certfile, -cipher, -command, -dhparams, -key, -keyfile, -model, -password, -require, -request, -server, -servername, -ssl2, -ssl3, -tls1, -tls1.1, -tls1.2, or -tls1.3"); return TCL_ERROR; } if (request) verify |= SSL_VERIFY_CLIENT_ONCE | SSL_VERIFY_PEER; if (request && require) verify |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT; if (verify == 0) verify = SSL_VERIFY_NONE; proto |= (ssl2 ? TLS_PROTO_SSL2 : 0); proto |= (ssl3 ? TLS_PROTO_SSL3 : 0); proto |= (tls1 ? TLS_PROTO_TLS1 : 0); proto |= (tls1_1 ? TLS_PROTO_TLS1_1 : 0); proto |= (tls1_2 ? TLS_PROTO_TLS1_2 : 0); proto |= (tls1_3 ? TLS_PROTO_TLS1_3 : 0); /* reset to NULL if blank string provided */ if (cert && !*cert) cert = NULL; if (key && !*key) key = NULL; if (certfile && !*certfile) certfile = NULL; if (keyfile && !*keyfile) keyfile = NULL; if (ciphers && !*ciphers) ciphers = NULL; if (CAfile && !*CAfile) CAfile = NULL; if (CAdir && !*CAdir) CAdir = NULL; if (DHparams && !*DHparams) DHparams = NULL; /* new SSL state */ statePtr = (State *) ckalloc((unsigned) sizeof(State)); memset(statePtr, 0, sizeof(State)); statePtr->flags = flags; statePtr->interp = interp; statePtr->vflags = verify; statePtr->err = ""; /* allocate script */ if (script) { (void) Tcl_GetStringFromObj(script, &len); if (len) { statePtr->callback = script; Tcl_IncrRefCount(statePtr->callback); } } /* allocate password */ if (password) { (void) Tcl_GetStringFromObj(password, &len); if (len) { statePtr->password = password; Tcl_IncrRefCount(statePtr->password); } } if (model != NULL) { int mode; /* Get the "model" context */ chan = Tcl_GetChannel(interp, model, &mode); if (chan == (Tcl_Channel) NULL) { Tls_Free((char *) statePtr); return TCL_ERROR; } /* * Make sure to operate on the topmost channel */ chan = Tcl_GetTopChannel(chan); if (Tcl_GetChannelType(chan) != Tls_ChannelType()) { Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan), "\": not a TLS channel", NULL); Tls_Free((char *) statePtr); return TCL_ERROR; } ctx = ((State *)Tcl_GetChannelInstanceData(chan))->ctx; } else { if ((ctx = CTX_Init(statePtr, server, proto, keyfile, certfile, key, cert, key_len, cert_len, CAdir, CAfile, ciphers, DHparams)) == (SSL_CTX*)0) { Tls_Free((char *) statePtr); return TCL_ERROR; } } statePtr->ctx = ctx; /* * We need to make sure that the channel works in binary (for the * encryption not to get goofed up). * We only want to adjust the buffering in pre-v2 channels, where * each channel in the stack maintained its own buffers. */ Tcl_DStringInit(&upperChannelTranslation); Tcl_DStringInit(&upperChannelBlocking); Tcl_DStringInit(&upperChannelEOFChar); Tcl_DStringInit(&upperChannelEncoding); Tcl_GetChannelOption(interp, chan, "-eofchar", &upperChannelEOFChar); Tcl_GetChannelOption(interp, chan, "-encoding", &upperChannelEncoding); Tcl_GetChannelOption(interp, chan, "-translation", &upperChannelTranslation); Tcl_GetChannelOption(interp, chan, "-blocking", &upperChannelBlocking); Tcl_SetChannelOption(interp, chan, "-translation", "binary"); Tcl_SetChannelOption(interp, chan, "-blocking", "true"); dprintf("Consuming Tcl channel %s", Tcl_GetChannelName(chan)); statePtr->self = Tcl_StackChannel(interp, Tls_ChannelType(), (ClientData) statePtr, (TCL_READABLE | TCL_WRITABLE), chan); dprintf("Created channel named %s", Tcl_GetChannelName(statePtr->self)); if (statePtr->self == (Tcl_Channel) NULL) { /* * No use of Tcl_EventuallyFree because no possible Tcl_Preserve. */ Tls_Free((char *) statePtr); return TCL_ERROR; } Tcl_SetChannelOption(interp, statePtr->self, "-translation", Tcl_DStringValue(&upperChannelTranslation)); Tcl_SetChannelOption(interp, statePtr->self, "-encoding", Tcl_DStringValue(&upperChannelEncoding)); Tcl_SetChannelOption(interp, statePtr->self, "-eofchar", Tcl_DStringValue(&upperChannelEOFChar)); Tcl_SetChannelOption(interp, statePtr->self, "-blocking", Tcl_DStringValue(&upperChannelBlocking)); /* * SSL Initialization */ statePtr->ssl = SSL_new(statePtr->ctx); if (!statePtr->ssl) { /* SSL library error */ Tcl_AppendResult(interp, "couldn't construct ssl session: ", REASON(), (char *) NULL); Tls_Free((char *) statePtr); return TCL_ERROR; } #ifndef OPENSSL_NO_TLSEXT if (servername) { if (!SSL_set_tlsext_host_name(statePtr->ssl, servername) && require) { Tcl_AppendResult(interp, "setting TLS host name extension failed", (char *) NULL); Tls_Free((char *) statePtr); return TCL_ERROR; } } if (alpn) { /* Convert a Tcl list into a protocol-list in wire-format */ unsigned char *protos, *p; unsigned int protoslen = 0; int i, len, cnt; Tcl_Obj **list; if (Tcl_ListObjGetElements(interp, alpn, &cnt, &list) != TCL_OK) { Tls_Free((char *) statePtr); return TCL_ERROR; } /* Determine the memory required for the protocol-list */ for (i = 0; i < cnt; i++) { Tcl_GetStringFromObj(list[i], &len); if (len > 255) { Tcl_AppendResult(interp, "alpn protocol name too long", (char *) NULL); Tls_Free((char *) statePtr); return TCL_ERROR; } protoslen += 1 + len; } /* Build the complete protocol-list */ protos = ckalloc(protoslen); /* protocol-lists consist of 8-bit length-prefixed, byte strings */ for (i = 0, p = protos; i < cnt; i++) { char *str = Tcl_GetStringFromObj(list[i], &len); *p++ = len; memcpy(p, str, len); p += len; } /* Note: This functions reverses the return value convention */ if (SSL_set_alpn_protos(statePtr->ssl, protos, protoslen)) { Tcl_AppendResult(interp, "failed to set alpn protocols", (char *) NULL); Tls_Free((char *) statePtr); ckfree(protos); return TCL_ERROR; } /* SSL_set_alpn_protos makes a copy of the protocol-list */ ckfree(protos); } #endif /* * SSL Callbacks */ SSL_set_app_data(statePtr->ssl, (void *)statePtr); /* point back to us */ SSL_set_verify(statePtr->ssl, verify, VerifyCallback); SSL_CTX_set_info_callback(statePtr->ctx, InfoCallback); /* Create Tcl_Channel BIO Handler */ statePtr->p_bio = BIO_new_tcl(statePtr, BIO_NOCLOSE); statePtr->bio = BIO_new(BIO_f_ssl()); if (server) { statePtr->flags |= TLS_TCL_SERVER; SSL_set_accept_state(statePtr->ssl); } else { SSL_set_connect_state(statePtr->ssl); } SSL_set_bio(statePtr->ssl, statePtr->p_bio, statePtr->p_bio); BIO_set_ssl(statePtr->bio, statePtr->ssl, BIO_NOCLOSE); /* * End of SSL Init */ dprintf("Returning %s", Tcl_GetChannelName(statePtr->self)); Tcl_SetResult(interp, (char *) Tcl_GetChannelName(statePtr->self), TCL_VOLATILE); return TCL_OK; clientData = clientData; } /* *------------------------------------------------------------------- * * UnimportObjCmd -- * * This procedure is invoked to remove the topmost channel filter. * * Results: * A standard Tcl result. * * Side effects: * May modify the behavior of an IO channel. * *------------------------------------------------------------------- */ static int UnimportObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { Tcl_Channel chan; /* The channel to set a mode on. */ dprintf("Called"); if (objc != 2) { Tcl_WrongNumArgs(interp, 1, objv, "channel"); return TCL_ERROR; } chan = Tcl_GetChannel(interp, Tcl_GetString(objv[1]), NULL); if (chan == (Tcl_Channel) NULL) { return TCL_ERROR; } /* * Make sure to operate on the topmost channel */ chan = Tcl_GetTopChannel(chan); if (Tcl_GetChannelType(chan) != Tls_ChannelType()) { Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan), "\": not a TLS channel", NULL); return TCL_ERROR; } if (Tcl_UnstackChannel(interp, chan) == TCL_ERROR) { return TCL_ERROR; } return TCL_OK; clientData = clientData; } /* *------------------------------------------------------------------- * * CTX_Init -- construct a SSL_CTX instance * * Results: * A valid SSL_CTX instance or NULL. * * Side effects: * constructs SSL context (CTX) * *------------------------------------------------------------------- */ static SSL_CTX * CTX_Init(State *statePtr, int isServer, int proto, char *keyfile, char *certfile, unsigned char *key, unsigned char *cert, int key_len, int cert_len, char *CAdir, char *CAfile, char *ciphers, char *DHparams) { Tcl_Interp *interp = statePtr->interp; SSL_CTX *ctx = NULL; Tcl_DString ds; Tcl_DString ds1; int off = 0; int load_private_key; const SSL_METHOD *method; dprintf("Called"); if (!proto) { Tcl_AppendResult(interp, "no valid protocol selected", NULL); return (SSL_CTX *)0; } /* create SSL context */ #if OPENSSL_VERSION_NUMBER >= 0x10101000L || defined(NO_SSL2) || defined(OPENSSL_NO_SSL2) if (ENABLED(proto, TLS_PROTO_SSL2)) { Tcl_AppendResult(interp, "SSL2 protocol not supported", NULL); return (SSL_CTX *)0; } #endif #if defined(NO_SSL3) || defined(OPENSSL_NO_SSL3) if (ENABLED(proto, TLS_PROTO_SSL3)) { Tcl_AppendResult(interp, "SSL3 protocol not supported", NULL); return (SSL_CTX *)0; } #endif #if defined(NO_TLS1) || defined(OPENSSL_NO_TLS1) if (ENABLED(proto, TLS_PROTO_TLS1)) { Tcl_AppendResult(interp, "TLS 1.0 protocol not supported", NULL); return (SSL_CTX *)0; } #endif #if defined(NO_TLS1_1) || defined(OPENSSL_NO_TLS1_1) if (ENABLED(proto, TLS_PROTO_TLS1_1)) { Tcl_AppendResult(interp, "TLS 1.1 protocol not supported", NULL); return (SSL_CTX *)0; } #endif #if defined(NO_TLS1_2) || defined(OPENSSL_NO_TLS1_2) if (ENABLED(proto, TLS_PROTO_TLS1_2)) { Tcl_AppendResult(interp, "TLS 1.2 protocol not supported", NULL); return (SSL_CTX *)0; } #endif #if defined(NO_TLS1_3) || defined(OPENSSL_NO_TLS1_3) if (ENABLED(proto, TLS_PROTO_TLS1_3)) { Tcl_AppendResult(interp, "TLS 1.3 protocol not supported", NULL); return (SSL_CTX *)0; } #endif switch (proto) { #if OPENSSL_VERSION_NUMBER < 0x10101000L && !defined(NO_SSL2) && !defined(OPENSSL_NO_SSL2) case TLS_PROTO_SSL2: method = SSLv2_method(); break; #endif #if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) case TLS_PROTO_SSL3: method = SSLv3_method(); break; #endif #if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) case TLS_PROTO_TLS1: method = TLSv1_method(); break; #endif #if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) case TLS_PROTO_TLS1_1: method = TLSv1_1_method(); break; #endif #if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) case TLS_PROTO_TLS1_2: method = TLSv1_2_method(); break; #endif #if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3) case TLS_PROTO_TLS1_3: /* * The version range is constrained below, * after the context is created. Use the * generic method here. */ method = TLS_method(); break; #endif default: #if OPENSSL_VERSION_NUMBER >= 0x10100000L /* Negotiate highest available SSL/TLS version */ method = TLS_method(); #else method = SSLv23_method(); #endif #if OPENSSL_VERSION_NUMBER < 0x10100000L && !defined(NO_SSL2) && !defined(OPENSSL_NO_SSL2) off |= (ENABLED(proto, TLS_PROTO_SSL2) ? 0 : SSL_OP_NO_SSLv2); #endif #if !defined(NO_SSL3) && !defined(OPENSSL_NO_SSL3) off |= (ENABLED(proto, TLS_PROTO_SSL3) ? 0 : SSL_OP_NO_SSLv3); #endif #if !defined(NO_TLS1) && !defined(OPENSSL_NO_TLS1) off |= (ENABLED(proto, TLS_PROTO_TLS1) ? 0 : SSL_OP_NO_TLSv1); #endif #if !defined(NO_TLS1_1) && !defined(OPENSSL_NO_TLS1_1) off |= (ENABLED(proto, TLS_PROTO_TLS1_1) ? 0 : SSL_OP_NO_TLSv1_1); #endif #if !defined(NO_TLS1_2) && !defined(OPENSSL_NO_TLS1_2) off |= (ENABLED(proto, TLS_PROTO_TLS1_2) ? 0 : SSL_OP_NO_TLSv1_2); #endif #if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3) off |= (ENABLED(proto, TLS_PROTO_TLS1_3) ? 0 : SSL_OP_NO_TLSv1_3); #endif break; } ctx = SSL_CTX_new(method); if (!ctx) { return(NULL); } if (getenv(SSLKEYLOGFILE)) { SSL_CTX_set_keylog_callback(ctx, KeyLogCallback); } #if !defined(NO_TLS1_3) && !defined(OPENSSL_NO_TLS1_3) if (proto == TLS_PROTO_TLS1_3) { SSL_CTX_set_min_proto_version(ctx, TLS1_3_VERSION); SSL_CTX_set_max_proto_version(ctx, TLS1_3_VERSION); if (!isServer) { SSL_CTX_set_options(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE); } } #endif SSL_CTX_set_app_data(ctx, (void*)interp); /* remember the interpreter */ SSL_CTX_set_options(ctx, SSL_OP_ALL); /* all SSL bug workarounds */ SSL_CTX_set_options(ctx, off); /* disable protocol versions */ #if OPENSSL_VERSION_NUMBER < 0x10101000L SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY); /* handle new handshakes in background */ #endif SSL_CTX_sess_set_cache_size(ctx, 128); if (ciphers != NULL) SSL_CTX_set_cipher_list(ctx, ciphers); /* set some callbacks */ SSL_CTX_set_default_passwd_cb(ctx, PasswordCallback); #ifndef BSAFE SSL_CTX_set_default_passwd_cb_userdata(ctx, (void *)statePtr); #endif /* read a Diffie-Hellman parameters file, or use the built-in one */ #ifdef OPENSSL_NO_DH if (DHparams != NULL) { Tcl_AppendResult(interp, "DH parameter support not available", (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } #else { DH* dh; if (DHparams != NULL) { BIO *bio; Tcl_DStringInit(&ds); bio = BIO_new_file(F2N(DHparams, &ds), "r"); if (!bio) { Tcl_DStringFree(&ds); Tcl_AppendResult(interp, "Could not find DH parameters file", (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); BIO_free(bio); Tcl_DStringFree(&ds); if (!dh) { Tcl_AppendResult(interp, "Could not read DH parameters from file", (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } } else { dh = get_dhParams(); } SSL_CTX_set_tmp_dh(ctx, dh); DH_free(dh); } #endif /* set our certificate */ load_private_key = 0; if (certfile != NULL) { load_private_key = 1; Tcl_DStringInit(&ds); if (SSL_CTX_use_certificate_file(ctx, F2N(certfile, &ds), SSL_FILETYPE_PEM) <= 0) { Tcl_DStringFree(&ds); Tcl_AppendResult(interp, "unable to set certificate file ", certfile, ": ", REASON(), (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } } else if (cert != NULL) { load_private_key = 1; if (SSL_CTX_use_certificate_ASN1(ctx, cert_len, cert) <= 0) { Tcl_DStringFree(&ds); Tcl_AppendResult(interp, "unable to set certificate: ", REASON(), (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } } else { certfile = (char*)X509_get_default_cert_file(); if (SSL_CTX_use_certificate_file(ctx, certfile, SSL_FILETYPE_PEM) <= 0) { #if 0 Tcl_DStringFree(&ds); Tcl_AppendResult(interp, "unable to use default certificate file ", certfile, ": ", REASON(), (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; #endif } } /* set our private key */ if (load_private_key) { if (keyfile == NULL && key == NULL) { keyfile = certfile; } if (keyfile != NULL) { /* get the private key associated with this certificate */ if (keyfile == NULL) { keyfile = certfile; } if (SSL_CTX_use_PrivateKey_file(ctx, F2N(keyfile, &ds), SSL_FILETYPE_PEM) <= 0) { Tcl_DStringFree(&ds); /* flush the passphrase which might be left in the result */ Tcl_SetResult(interp, NULL, TCL_STATIC); Tcl_AppendResult(interp, "unable to set public key file ", keyfile, " ", REASON(), (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } Tcl_DStringFree(&ds); } else if (key != NULL) { if (SSL_CTX_use_PrivateKey_ASN1(EVP_PKEY_RSA, ctx, key,key_len) <= 0) { Tcl_DStringFree(&ds); /* flush the passphrase which might be left in the result */ Tcl_SetResult(interp, NULL, TCL_STATIC); Tcl_AppendResult(interp, "unable to set public key: ", REASON(), (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } } /* Now we know that a key and cert have been set against * the SSL context */ if (!SSL_CTX_check_private_key(ctx)) { Tcl_AppendResult(interp, "private key does not match the certificate public key", (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; } } /* Set verification CAs */ Tcl_DStringInit(&ds); Tcl_DStringInit(&ds1); if (!SSL_CTX_load_verify_locations(ctx, F2N(CAfile, &ds), F2N(CAdir, &ds1)) || !SSL_CTX_set_default_verify_paths(ctx)) { #if 0 Tcl_DStringFree(&ds); Tcl_DStringFree(&ds1); /* Don't currently care if this fails */ Tcl_AppendResult(interp, "SSL default verify paths: ", REASON(), (char *) NULL); SSL_CTX_free(ctx); return (SSL_CTX *)0; #endif } /* https://sourceforge.net/p/tls/bugs/57/ */ /* XXX:TODO: Let the user supply values here instead of something that exists on the filesystem */ if (CAfile != NULL) { STACK_OF(X509_NAME) *certNames = SSL_load_client_CA_file(F2N(CAfile, &ds)); if (certNames != NULL) { SSL_CTX_set_client_CA_list(ctx, certNames); } } Tcl_DStringFree(&ds); Tcl_DStringFree(&ds1); return ctx; } /* *------------------------------------------------------------------- * * StatusObjCmd -- return certificate for connected peer. * * Results: * A standard Tcl result. * * Side effects: * None. * *------------------------------------------------------------------- */ static int StatusObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { State *statePtr; X509 *peer; Tcl_Obj *objPtr; Tcl_Channel chan; char *channelName, *ciphers; int mode; #ifndef OPENSSL_NO_TLSEXT const unsigned char *proto; unsigned int len; #endif dprintf("Called"); switch (objc) { case 2: channelName = Tcl_GetStringFromObj(objv[1], NULL); break; case 3: if (!strcmp (Tcl_GetString (objv[1]), "-local")) { channelName = Tcl_GetStringFromObj(objv[2], NULL); break; } /* else fall-through ... */ #if defined(__GNUC__) __attribute__((fallthrough)); #endif default: Tcl_WrongNumArgs(interp, 1, objv, "?-local? channel"); return TCL_ERROR; } chan = Tcl_GetChannel(interp, channelName, &mode); if (chan == (Tcl_Channel) NULL) { return TCL_ERROR; } /* * Make sure to operate on the topmost channel */ chan = Tcl_GetTopChannel(chan); if (Tcl_GetChannelType(chan) != Tls_ChannelType()) { Tcl_AppendResult(interp, "bad channel \"", Tcl_GetChannelName(chan), "\": not a TLS channel", NULL); return TCL_ERROR; } statePtr = (State *) Tcl_GetChannelInstanceData(chan); if (objc == 2) { peer = SSL_get_peer_certificate(statePtr->ssl); } else { peer = SSL_get_certificate(statePtr->ssl); } if (peer) { objPtr = Tls_NewX509Obj(interp, peer); if (objc == 2) { X509_free(peer); } } else { objPtr = Tcl_NewListObj(0, NULL); } Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("sbits", -1)); Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewIntObj(SSL_get_cipher_bits(statePtr->ssl, NULL))); ciphers = (char*)SSL_get_cipher(statePtr->ssl); if ((ciphers != NULL) && (strcmp(ciphers, "(NONE)") != 0)) { Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("cipher", -1)); Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_get_cipher(statePtr->ssl), -1)); } #ifndef OPENSSL_NO_TLSEXT /* Report the selected protocol as a result of the negotiation */ SSL_get0_alpn_selected(statePtr->ssl, &proto, &len); Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("alpn", -1)); Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj((char *)proto, (int)len)); #endif Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj("version", -1)); Tcl_ListObjAppendElement(interp, objPtr, Tcl_NewStringObj(SSL_get_version(statePtr->ssl), -1)); Tcl_SetObjResult(interp, objPtr); return TCL_OK; clientData = clientData; } /* *------------------------------------------------------------------- * * VersionObjCmd -- return version string from OpenSSL. * * Results: * A standard Tcl result. * * Side effects: * None. * *------------------------------------------------------------------- */ static int VersionObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { Tcl_Obj *objPtr; dprintf("Called"); objPtr = Tcl_NewStringObj(OPENSSL_VERSION_TEXT, -1); Tcl_SetObjResult(interp, objPtr); return TCL_OK; clientData = clientData; objc = objc; objv = objv; } /* *------------------------------------------------------------------- * * MiscObjCmd -- misc commands * * Results: * A standard Tcl result. * * Side effects: * None. * *------------------------------------------------------------------- */ static int MiscObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const objv[]) { static const char *commands [] = { "req", "strreq", NULL }; enum command { C_REQ, C_STRREQ, C_DUMMY }; int cmd, isStr; char buffer[16384]; dprintf("Called"); if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "subcommand ?args?"); return TCL_ERROR; } if (Tcl_GetIndexFromObj(interp, objv[1], commands, "command", 0,&cmd) != TCL_OK) { return TCL_ERROR; } isStr = (cmd == C_STRREQ); switch ((enum command) cmd) { case C_REQ: case C_STRREQ: { EVP_PKEY *pkey=NULL; X509 *cert=NULL; X509_NAME *name=NULL; Tcl_Obj **listv; int listc,i; BIO *out=NULL; char *k_C="",*k_ST="",*k_L="",*k_O="",*k_OU="",*k_CN="",*k_Email=""; char *keyout,*pemout,*str; int keysize,serial=0,days=365; #if OPENSSL_VERSION_NUMBER <= 0x10100000L RSA *rsa = NULL; #elif OPENSSL_VERSION_NUMBER < 0x30000000L BIGNUM *bne = NULL; RSA *rsa = NULL; #else EVP_PKEY_CTX *ctx = NULL; #endif if ((objc<5) || (objc>6)) { Tcl_WrongNumArgs(interp, 2, objv, "keysize keyfile certfile ?info?"); return TCL_ERROR; } if (Tcl_GetIntFromObj(interp, objv[2], &keysize) != TCL_OK) { return TCL_ERROR; } keyout=Tcl_GetString(objv[3]); pemout=Tcl_GetString(objv[4]); if (isStr) { Tcl_SetVar(interp,keyout,"",0); Tcl_SetVar(interp,pemout,"",0); } if (objc>=6) { if (Tcl_ListObjGetElements(interp, objv[5], &listc, &listv) != TCL_OK) { return TCL_ERROR; } if ((listc%2) != 0) { Tcl_SetResult(interp,"Information list must have even number of arguments",NULL); return TCL_ERROR; } for (i=0; i<listc; i+=2) { str=Tcl_GetString(listv[i]); if (strcmp(str,"days")==0) { if (Tcl_GetIntFromObj(interp,listv[i+1],&days)!=TCL_OK) return TCL_ERROR; } else if (strcmp(str,"serial")==0) { if (Tcl_GetIntFromObj(interp,listv[i+1],&serial)!=TCL_OK) return TCL_ERROR; } else if (strcmp(str,"C")==0) { k_C=Tcl_GetString(listv[i+1]); } else if (strcmp(str,"ST")==0) { k_ST=Tcl_GetString(listv[i+1]); } else if (strcmp(str,"L")==0) { k_L=Tcl_GetString(listv[i+1]); } else if (strcmp(str,"O")==0) { k_O=Tcl_GetString(listv[i+1]); } else if (strcmp(str,"OU")==0) { k_OU=Tcl_GetString(listv[i+1]); } else if (strcmp(str,"CN")==0) { k_CN=Tcl_GetString(listv[i+1]); } else if (strcmp(str,"Email")==0) { k_Email=Tcl_GetString(listv[i+1]); } else { Tcl_SetResult(interp,"Unknown parameter",NULL); return TCL_ERROR; } } } #if OPENSSL_VERSION_NUMBER <= 0x10100000L pkey = EVP_PKEY_new(); rsa = RSA_generate_key(keysize, 0x10001, NULL, NULL); if (pkey == NULL || rsa == NULL || !EVP_PKEY_assign_RSA(pkey, rsa)) { EVP_PKEY_free(pkey); /* RSA_free(rsa); freed by EVP_PKEY_free */ #elif OPENSSL_VERSION_NUMBER < 0x30000000L bne = BN_new(); rsa = RSA_new(); pkey = EVP_PKEY_new(); if (bne == NULL || rsa == NULL || pkey == NULL || !BN_set_word(bne,RSA_F4) || !RSA_generate_key_ex(rsa, keysize, bne, NULL) || !EVP_PKEY_assign_RSA(pkey, rsa)) { EVP_PKEY_free(pkey); /* RSA_free(rsa); freed by EVP_PKEY_free */ BN_free(bne); #else pkey = EVP_RSA_gen((unsigned int) keysize); ctx = EVP_PKEY_CTX_new(pkey,NULL); if (pkey == NULL || ctx == NULL || !EVP_PKEY_keygen_init(ctx) || !EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, keysize) || !EVP_PKEY_keygen(ctx, &pkey)) { EVP_PKEY_free(pkey); EVP_PKEY_CTX_free(ctx); #endif Tcl_SetResult(interp,"Error generating private key",NULL); return TCL_ERROR; } else { if (isStr) { out=BIO_new(BIO_s_mem()); PEM_write_bio_PrivateKey(out,pkey,NULL,NULL,0,NULL,NULL); i=BIO_read(out,buffer,sizeof(buffer)-1); i=(i<0) ? 0 : i; buffer[i]='\0'; Tcl_SetVar(interp,keyout,buffer,0); BIO_flush(out); BIO_free(out); } else { out=BIO_new(BIO_s_file()); BIO_write_filename(out,keyout); PEM_write_bio_PrivateKey(out,pkey,NULL,NULL,0,NULL,NULL); /* PEM_write_bio_RSAPrivateKey(out, rsa, NULL, NULL, 0, NULL, NULL); */ BIO_free_all(out); } if ((cert=X509_new())==NULL) { Tcl_SetResult(interp,"Error generating certificate request",NULL); EVP_PKEY_free(pkey); #if OPENSSL_VERSION_NUMBER > 0x10100000L && OPENSSL_VERSION_NUMBER < 0x30000000L BN_free(bne); #endif return(TCL_ERROR); } X509_set_version(cert,2); ASN1_INTEGER_set(X509_get_serialNumber(cert),serial); #if OPENSSL_VERSION_NUMBER < 0x10100000L X509_gmtime_adj(X509_get_notBefore(cert),0); X509_gmtime_adj(X509_get_notAfter(cert),(long)60*60*24*days); #else X509_gmtime_adj(X509_getm_notBefore(cert),0); X509_gmtime_adj(X509_getm_notAfter(cert),(long)60*60*24*days); #endif X509_set_pubkey(cert,pkey); name=X509_get_subject_name(cert); X509_NAME_add_entry_by_txt(name,"C", MBSTRING_ASC, (const unsigned char *) k_C, -1, -1, 0); X509_NAME_add_entry_by_txt(name,"ST", MBSTRING_ASC, (const unsigned char *) k_ST, -1, -1, 0); X509_NAME_add_entry_by_txt(name,"L", MBSTRING_ASC, (const unsigned char *) k_L, -1, -1, 0); X509_NAME_add_entry_by_txt(name,"O", MBSTRING_ASC, (const unsigned char *) k_O, -1, -1, 0); X509_NAME_add_entry_by_txt(name,"OU", MBSTRING_ASC, (const unsigned char *) k_OU, -1, -1, 0); X509_NAME_add_entry_by_txt(name,"CN", MBSTRING_ASC, (const unsigned char *) k_CN, -1, -1, 0); X509_NAME_add_entry_by_txt(name,"Email", MBSTRING_ASC, (const unsigned char *) k_Email, -1, -1, 0); X509_set_subject_name(cert,name); if (!X509_sign(cert,pkey,EVP_sha256())) { X509_free(cert); EVP_PKEY_free(pkey); #if OPENSSL_VERSION_NUMBER > 0x10100000L && OPENSSL_VERSION_NUMBER < 0x30000000L BN_free(bne); #endif Tcl_SetResult(interp,"Error signing certificate",NULL); return TCL_ERROR; } if (isStr) { out=BIO_new(BIO_s_mem()); PEM_write_bio_X509(out,cert); i=BIO_read(out,buffer,sizeof(buffer)-1); i=(i<0) ? 0 : i; buffer[i]='\0'; Tcl_SetVar(interp,pemout,buffer,0); BIO_flush(out); BIO_free(out); } else { out=BIO_new(BIO_s_file()); BIO_write_filename(out,pemout); PEM_write_bio_X509(out,cert); BIO_free_all(out); } X509_free(cert); EVP_PKEY_free(pkey); #if OPENSSL_VERSION_NUMBER > 0x10100000L && OPENSSL_VERSION_NUMBER < 0x30000000L BN_free(bne); #endif } } break; default: break; } return TCL_OK; clientData = clientData; } /* *------------------------------------------------------------------- * * Tls_Free -- * * This procedure cleans up when a SSL socket based channel * is closed and its reference count falls below 1 * * Results: * none * * Side effects: * Frees all the state * *------------------------------------------------------------------- */ void Tls_Free(char *blockPtr) { State *statePtr = (State *)blockPtr; dprintf("Called"); Tls_Clean(statePtr); ckfree(blockPtr); } /* *------------------------------------------------------------------- * * Tls_Clean -- * * This procedure cleans up when a SSL socket based channel * is closed and its reference count falls below 1. This should * be called synchronously by the CloseProc, not in the * EventuallyFree callback. * * Results: * none * * Side effects: * Frees all the state * *------------------------------------------------------------------- */ void Tls_Clean(State *statePtr) { dprintf("Called"); /* * we're assuming here that we're single-threaded */ if (statePtr->timer != (Tcl_TimerToken) NULL) { Tcl_DeleteTimerHandler(statePtr->timer); statePtr->timer = NULL; } if (statePtr->bio) { /* This will call SSL_shutdown. Bug 1414045 */ dprintf("BIO_free_all(%p)", statePtr->bio); BIO_free_all(statePtr->bio); statePtr->bio = NULL; } if (statePtr->ssl) { dprintf("SSL_free(%p)", statePtr->ssl); SSL_free(statePtr->ssl); statePtr->ssl = NULL; } if (statePtr->ctx) { SSL_CTX_free(statePtr->ctx); statePtr->ctx = NULL; } if (statePtr->callback) { Tcl_DecrRefCount(statePtr->callback); statePtr->callback = NULL; } if (statePtr->password) { Tcl_DecrRefCount(statePtr->password); statePtr->password = NULL; } dprintf("Returning"); } /* *------------------------------------------------------------------- * * Tls_Init -- * * This is a package initialization procedure, which is called * by Tcl when this package is to be added to an interpreter. * * Results: Ssl configured and loaded * * Side effects: * create the ssl command, initialize ssl context * *------------------------------------------------------------------- */ DLLEXPORT int Tls_Init(Tcl_Interp *interp) { const char tlsTclInitScript[] = { #include "tls.tcl.h" 0x00 }; dprintf("Called"); /* * We only support Tcl 8.4 or newer */ if ( #ifdef USE_TCL_STUBS Tcl_InitStubs(interp, "8.4", 0) #else Tcl_PkgRequire(interp, "Tcl", "8.4-", 0) #endif == NULL) { return TCL_ERROR; } if (TlsLibInit(0) != TCL_OK) { Tcl_AppendResult(interp, "could not initialize SSL library", NULL); return TCL_ERROR; } Tcl_CreateObjCommand(interp, "tls::ciphers", CiphersObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::handshake", HandshakeObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::import", ImportObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::unimport", UnimportObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::status", StatusObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::version", VersionObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); Tcl_CreateObjCommand(interp, "tls::misc", MiscObjCmd, (ClientData) 0, (Tcl_CmdDeleteProc *) NULL); if (interp) { Tcl_Eval(interp, tlsTclInitScript); } return(Tcl_PkgProvide(interp, "tls", PACKAGE_VERSION)); } /* *------------------------------------------------------* * * Tls_SafeInit -- * * ------------------------------------------------* * Standard procedure required by 'load'. * Initializes this extension for a safe interpreter. * ------------------------------------------------* * * Side effects: * As of 'Tls_Init' * * Result: * A standard Tcl error code. * *------------------------------------------------------* */ DLLEXPORT int Tls_SafeInit(Tcl_Interp *interp) { dprintf("Called"); return(Tls_Init(interp)); } /* *------------------------------------------------------* * * TlsLibInit -- * * ------------------------------------------------* * Initializes SSL library once per application * ------------------------------------------------* * * Side effects: * initializes SSL library * * Result: * none * *------------------------------------------------------* */ static int TlsLibInit(int uninitialize) { static int initialized = 0; int status = TCL_OK; #if defined(OPENSSL_THREADS) && defined(TCL_THREADS) size_t num_locks; #endif if (uninitialize) { if (!initialized) { dprintf("Asked to uninitialize, but we are not initialized"); return(TCL_OK); } dprintf("Asked to uninitialize"); #if defined(OPENSSL_THREADS) && defined(TCL_THREADS) Tcl_MutexLock(&init_mx); #if OPENSSL_VERSION_NUMBER < 0x10000000L CRYPTO_set_locking_callback(NULL); CRYPTO_set_id_callback(NULL); #elif OPENSSL_VERSION_NUMBER < 0x10100000L CRYPTO_set_locking_callback(NULL); CRYPTO_THREADID_set_callback(NULL) #endif if (locks) { free(locks); locks = NULL; locksCount = 0; } #endif initialized = 0; #if defined(OPENSSL_THREADS) && defined(TCL_THREADS) Tcl_MutexUnlock(&init_mx); #endif return(TCL_OK); } if (initialized) { dprintf("Called, but using cached value"); return(status); } dprintf("Called"); #if defined(OPENSSL_THREADS) && defined(TCL_THREADS) Tcl_MutexLock(&init_mx); #endif initialized = 1; #if defined(OPENSSL_THREADS) && defined(TCL_THREADS) #if OPENSSL_VERSION_NUMBER < 0x10100000L num_locks = CRYPTO_num_locks(); #else num_locks = 1; #endif locksCount = (int) num_locks; locks = malloc(sizeof(*locks) * num_locks); memset(locks, 0, sizeof(*locks) * num_locks); #if OPENSSL_VERSION_NUMBER < 0x10000000L CRYPTO_set_locking_callback(CryptoThreadLockCallback); CRYPTO_set_id_callback(CryptoThreadIdCallback); #elif OPENSSL_VERSION_NUMBER < 0x10100000L CRYPTO_set_locking_callback(CryptoThreadLockCallback); CRYPTO_THREADID_set_callback(CryptoThreadIdCallback) #endif #endif # if OPENSSL_VERSION_NUMBER < 0x10100000L if (SSL_library_init() != 1) { status = TCL_ERROR; goto done; } #else /* Initialize BOTH libcrypto and libssl. */ OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS | OPENSSL_INIT_ADD_ALL_CIPHERS | OPENSSL_INIT_ADD_ALL_DIGESTS, NULL); #endif # if OPENSSL_VERSION_NUMBER < 0x10100000L SSL_load_error_strings(); ERR_load_crypto_strings(); #else OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); #endif BIO_new_tcl(NULL, 0); #if 0 /* * XXX:TODO: Remove this code and replace it with a check * for enough entropy and do not try to create our own * terrible entropy */ /* * Seed the random number generator in the SSL library, * using the do/while construct because of the bug note in the * OpenSSL FAQ at http://www.openssl.org/support/faq.html#USER1 * * The crux of the problem is that Solaris 7 does not have a * /dev/random or /dev/urandom device so it cannot gather enough * entropy from the RAND_seed() when TLS initializes and refuses * to go further. Earlier versions of OpenSSL carried on regardless. */ srand((unsigned int) time((time_t *) NULL)); do { for (i = 0; i < 16; i++) { rnd_seed[i] = 1 + (char) (255.0 * rand()/(RAND_MAX+1.0)); } RAND_seed(rnd_seed, sizeof(rnd_seed)); } while (RAND_status() != 1); #endif # if OPENSSL_VERSION_NUMBER < 0x10100000L done: #endif #if defined(OPENSSL_THREADS) && defined(TCL_THREADS) Tcl_MutexUnlock(&init_mx); #endif return(status); } |
Added generic/tls.h version [bcbadd0481].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | /* * Copyright (C) 1997-2000 Matt Newman <[email protected]> * * TLS (aka SSL) Channel - can be layered on any bi-directional * Tcl_Channel (Note: Requires Trf Core Patch) * * This was built from scratch based upon observation of OpenSSL 0.9.2B * * Addition credit is due for Andreas Kupries ([email protected]), for * providing the Tcl_ReplaceChannel mechanism and working closely with me * to enhance it to support full fileevent semantics. * * Also work done by the follow people provided the impetus to do this "right":- * tclSSL (Colin McCormack, Shared Technology) * SSLtcl (Peter Antman) * */ #ifndef _TLS_H #define _TLS_H #include <tcl.h> /* * Initialization routines -- our entire public C API. */ DLLEXPORT int Tls_Init(Tcl_Interp *interp); DLLEXPORT int Tls_SafeInit(Tcl_Interp *interp); #endif /* _TLS_H */ |
Added generic/tlsBIO.c version [2e81a5f072].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 | /* * Copyright (C) 1997-2000 Matt Newman <[email protected]> * * Provides BIO layer to interface openssl to Tcl. */ #include "tlsInt.h" #ifdef TCLTLS_OPENSSL_PRE_1_1_API #define BIO_get_data(bio) ((bio)->ptr) #define BIO_get_init(bio) ((bio)->init) #define BIO_get_shutdown(bio) ((bio)->shutdown) #define BIO_set_data(bio, val) (bio)->ptr = (val) #define BIO_set_init(bio, val) (bio)->init = (val) #define BIO_set_shutdown(bio, val) (bio)->shutdown = (val) /* XXX: This assumes the variable being assigned to is BioMethods */ #define BIO_meth_new(type_, name_) (BIO_METHOD *)Tcl_Alloc(sizeof(BIO_METHOD)); \ memset(BioMethods, 0, sizeof(BIO_METHOD)); \ BioMethods->type = type_; \ BioMethods->name = name_; #define BIO_meth_set_write(bio, val) (bio)->bwrite = val; #define BIO_meth_set_read(bio, val) (bio)->bread = val; #define BIO_meth_set_puts(bio, val) (bio)->bputs = val; #define BIO_meth_set_ctrl(bio, val) (bio)->ctrl = val; #define BIO_meth_set_create(bio, val) (bio)->create = val; #define BIO_meth_set_destroy(bio, val) (bio)->destroy = val; #endif static int BioWrite(BIO *bio, const char *buf, int bufLen) { Tcl_Channel chan; int ret; int tclEofChan, tclErrno; chan = Tls_GetParent((State *) BIO_get_data(bio), 0); dprintf("[chan=%p] BioWrite(%p, <buf>, %d)", (void *)chan, (void *) bio, bufLen); ret = Tcl_WriteRaw(chan, buf, bufLen); tclEofChan = Tcl_Eof(chan); tclErrno = Tcl_GetErrno(); dprintf("[chan=%p] BioWrite(%d) -> %d [tclEof=%d; tclErrno=%d]", (void *) chan, bufLen, ret, tclEofChan, Tcl_GetErrno()); BIO_clear_flags(bio, BIO_FLAGS_WRITE | BIO_FLAGS_SHOULD_RETRY); if (tclEofChan && ret <= 0) { dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF"); Tcl_SetErrno(ECONNRESET); ret = 0; } else if (ret == 0) { dprintf("Got 0 from Tcl_WriteRaw, and EOF is not set; ret = 0"); dprintf("Setting retry read flag"); BIO_set_retry_read(bio); } else if (ret < 0) { dprintf("We got some kind of I/O error"); if (tclErrno == EAGAIN) { dprintf("It's EAGAIN"); } else { dprintf("It's an unepxected error: %s/%i", Tcl_ErrnoMsg(tclErrno), tclErrno); } } else { dprintf("Successfully wrote some data"); } if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) { if (BIO_should_read(bio)) { dprintf("Setting should retry read flag"); BIO_set_retry_read(bio); } } return(ret); } static int BioRead(BIO *bio, char *buf, int bufLen) { Tcl_Channel chan; int ret = 0; int tclEofChan, tclErrno; chan = Tls_GetParent((State *) BIO_get_data(bio), 0); dprintf("[chan=%p] BioRead(%p, <buf>, %d)", (void *) chan, (void *) bio, bufLen); if (buf == NULL) { return 0; } ret = Tcl_ReadRaw(chan, buf, bufLen); tclEofChan = Tcl_Eof(chan); tclErrno = Tcl_GetErrno(); dprintf("[chan=%p] BioRead(%d) -> %d [tclEof=%d; tclErrno=%d]", (void *) chan, bufLen, ret, tclEofChan, tclErrno); BIO_clear_flags(bio, BIO_FLAGS_READ | BIO_FLAGS_SHOULD_RETRY); if (tclEofChan && ret <= 0) { dprintf("Got EOF while reading, returning a Connection Reset error which maps to Soft EOF"); Tcl_SetErrno(ECONNRESET); ret = 0; } else if (ret == 0) { dprintf("Got 0 from Tcl_Read or Tcl_ReadRaw, and EOF is not set; ret = 0"); dprintf("Setting retry read flag"); BIO_set_retry_read(bio); } else if (ret < 0) { dprintf("We got some kind of I/O error"); if (tclErrno == EAGAIN) { dprintf("It's EAGAIN"); } else { dprintf("It's an unepxected error: %s/%i", Tcl_ErrnoMsg(tclErrno), tclErrno); } } else { dprintf("Successfully read some data"); } if (ret != -1 || (ret == -1 && tclErrno == EAGAIN)) { if (BIO_should_write(bio)) { dprintf("Setting should retry write flag"); BIO_set_retry_write(bio); } } dprintf("BioRead(%p, <buf>, %d) [%p] returning %i", (void *) bio, bufLen, (void *) chan, ret); return(ret); } static int BioPuts(BIO *bio, const char *str) { dprintf("BioPuts(%p, <string:%p>) called", bio, str); return BioWrite(bio, str, (int) strlen(str)); } static long BioCtrl(BIO *bio, int cmd, long num, void *ptr) { Tcl_Channel chan; long ret = 1; chan = Tls_GetParent((State *) BIO_get_data(bio), 0); dprintf("BioCtrl(%p, 0x%x, 0x%lx, %p)", (void *) bio, cmd, num, ptr); switch (cmd) { case BIO_CTRL_RESET: dprintf("Got BIO_CTRL_RESET"); num = 0; ret = 0; break; case BIO_C_FILE_SEEK: dprintf("Got BIO_C_FILE_SEEK"); ret = 0; break; case BIO_C_FILE_TELL: dprintf("Got BIO_C_FILE_TELL"); ret = 0; break; case BIO_CTRL_INFO: dprintf("Got BIO_CTRL_INFO"); ret = 1; break; case BIO_C_SET_FD: dprintf("Unsupported call: BIO_C_SET_FD"); ret = -1; break; case BIO_C_GET_FD: dprintf("Unsupported call: BIO_C_GET_FD"); ret = -1; break; case BIO_CTRL_GET_CLOSE: dprintf("Got BIO_CTRL_CLOSE"); ret = BIO_get_shutdown(bio); break; case BIO_CTRL_SET_CLOSE: dprintf("Got BIO_SET_CLOSE"); BIO_set_shutdown(bio, num); break; case BIO_CTRL_EOF: dprintf("Got BIO_CTRL_EOF"); ret = ((chan) ? Tcl_Eof(chan) : 1); break; case BIO_CTRL_PENDING: dprintf("Got BIO_CTRL_PENDING"); ret = ((chan) ? ((Tcl_InputBuffered(chan) ? 1 : 0)) : 0); dprintf("BIO_CTRL_PENDING(%d)", (int) ret); break; case BIO_CTRL_WPENDING: dprintf("Got BIO_CTRL_WPENDING"); ret = 0; break; case BIO_CTRL_DUP: dprintf("Got BIO_CTRL_DUP"); break; case BIO_CTRL_FLUSH: dprintf("Got BIO_CTRL_FLUSH"); ret = ((chan) && (Tcl_WriteRaw(chan, "", 0) >= 0) ? 1 : -1); dprintf("BIO_CTRL_FLUSH returning value %li", ret); break; case BIO_CTRL_PUSH: dprintf("Got BIO_CTRL_PUSH"); ret = 0; break; case BIO_CTRL_POP: dprintf("Got BIO_CTRL_POP"); ret = 0; break; case BIO_CTRL_SET: dprintf("Got BIO_CTRL_SET"); ret = 0; break; case BIO_CTRL_GET : dprintf("Got BIO_CTRL_GET "); ret = 0; break; #ifdef BIO_CTRL_GET_KTLS_SEND case BIO_CTRL_GET_KTLS_SEND: dprintf("Got BIO_CTRL_GET_KTLS_SEND"); ret = 0; break; #endif #ifdef BIO_CTRL_GET_KTLS_RECV case BIO_CTRL_GET_KTLS_RECV: dprintf("Got BIO_CTRL_GET_KTLS_RECV"); ret = 0; break; #endif default: dprintf("Got unknown control command (%i)", cmd); ret = 0; break; } return(ret); } static int BioNew(BIO *bio) { dprintf("BioNew(%p) called", bio); BIO_set_init(bio, 0); BIO_set_data(bio, NULL); BIO_clear_flags(bio, -1); return(1); } static int BioFree(BIO *bio) { if (bio == NULL) { return(0); } dprintf("BioFree(%p) called", bio); if (BIO_get_shutdown(bio)) { if (BIO_get_init(bio)) { /*shutdown(bio->num, 2) */ /*closesocket(bio->num) */ } BIO_set_init(bio, 0); BIO_clear_flags(bio, -1); } return(1); } BIO *BIO_new_tcl(State *statePtr, int flags) { BIO *bio; static BIO_METHOD *BioMethods = NULL; #ifdef TCLTLS_SSL_USE_FASTPATH Tcl_Channel parentChannel; const Tcl_ChannelType *parentChannelType; void *parentChannelFdIn_p, *parentChannelFdOut_p; int parentChannelFdIn, parentChannelFdOut, parentChannelFd; int validParentChannelFd; int tclGetChannelHandleRet; #endif dprintf("BIO_new_tcl() called"); if (BioMethods == NULL) { BioMethods = BIO_meth_new(BIO_TYPE_TCL, "tcl"); BIO_meth_set_write(BioMethods, BioWrite); BIO_meth_set_read(BioMethods, BioRead); BIO_meth_set_puts(BioMethods, BioPuts); BIO_meth_set_ctrl(BioMethods, BioCtrl); BIO_meth_set_create(BioMethods, BioNew); BIO_meth_set_destroy(BioMethods, BioFree); } if (statePtr == NULL) { dprintf("Asked to setup a NULL state, just creating the initial configuration"); return(NULL); } #ifdef TCLTLS_SSL_USE_FASTPATH /* * If the channel can be mapped back to a file descriptor, just use the file descriptor * with the SSL library since it will likely be optimized for this. */ parentChannel = Tls_GetParent(statePtr, 0); parentChannelType = Tcl_GetChannelType(parentChannel); validParentChannelFd = 0; if (strcmp(parentChannelType->typeName, "tcp") == 0) { tclGetChannelHandleRet = Tcl_GetChannelHandle(parentChannel, TCL_READABLE, (ClientData) &parentChannelFdIn_p); if (tclGetChannelHandleRet == TCL_OK) { tclGetChannelHandleRet = Tcl_GetChannelHandle(parentChannel, TCL_WRITABLE, (ClientData) &parentChannelFdOut_p); if (tclGetChannelHandleRet == TCL_OK) { parentChannelFdIn = PTR2INT(parentChannelFdIn_p); parentChannelFdOut = PTR2INT(parentChannelFdOut_p); if (parentChannelFdIn == parentChannelFdOut) { parentChannelFd = parentChannelFdIn; validParentChannelFd = 1; } } } } if (validParentChannelFd) { dprintf("We found a shortcut, this channel is backed by a socket: %i", parentChannelFdIn); bio = BIO_new_socket(parentChannelFd, flags); statePtr->flags |= TLS_TCL_FASTPATH; return(bio); } dprintf("Falling back to Tcl I/O for this channel"); #endif bio = BIO_new(BioMethods); BIO_set_data(bio, statePtr); BIO_set_shutdown(bio, flags); BIO_set_init(bio, 1); return(bio); } |
Added generic/tlsIO.c version [ff0429678e].
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532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 | /* * Copyright (C) 1997-2000 Matt Newman <[email protected]> * Copyright (C) 2000 Ajuba Solutions * * TLS (aka SSL) Channel - can be layered on any bi-directional * Tcl_Channel (Note: Requires Trf Core Patch) * * This was built from scratch based upon observation of OpenSSL 0.9.2B * * Addition credit is due for Andreas Kupries ([email protected]), for * providing the Tcl_ReplaceChannel mechanism and working closely with me * to enhance it to support full fileevent semantics. * * Also work done by the follow people provided the impetus to do this "right": * tclSSL (Colin McCormack, Shared Technology) * SSLtcl (Peter Antman) * */ #include "tlsInt.h" /* * Forward declarations */ static void TlsChannelHandlerTimer(ClientData clientData); /* * TLS Channel Type */ static Tcl_ChannelType *tlsChannelType = NULL; /* *------------------------------------------------------------------- * * TlsBlockModeProc -- * * This procedure is invoked by the generic IO level * to set blocking and nonblocking modes * Results: * 0 if successful, errno when failed. * * Side effects: * Sets the device into blocking or nonblocking mode. * *------------------------------------------------------------------- */ static int TlsBlockModeProc(ClientData instanceData, int mode) { State *statePtr = (State *) instanceData; if (mode == TCL_MODE_NONBLOCKING) { statePtr->flags |= TLS_TCL_ASYNC; } else { statePtr->flags &= ~(TLS_TCL_ASYNC); } return(0); } /* *------------------------------------------------------------------- * * TlsCloseProc -- * * This procedure is invoked by the generic IO level to perform * channel-type-specific cleanup when a SSL socket based channel * is closed. * * Note: we leave the underlying socket alone, is this right? * * Results: * 0 if successful, the value of Tcl_GetErrno() if failed. * * Side effects: * Closes the socket of the channel. * *------------------------------------------------------------------- */ static int TlsCloseProc(ClientData instanceData, Tcl_Interp *interp) { State *statePtr = (State *) instanceData; dprintf("TlsCloseProc(%p)", (void *) statePtr); Tls_Clean(statePtr); Tcl_EventuallyFree((ClientData)statePtr, Tls_Free); return(0); /* Interp is unused. */ interp = interp; } static int TlsCloseProc2(ClientData instanceData, Tcl_Interp *interp, int flags) { if ((flags & (TCL_CLOSE_READ|TCL_CLOSE_WRITE)) == 0) { return TlsCloseProc(instanceData, interp); } return EINVAL; } /* *------------------------------------------------------* * * Tls_WaitForConnect -- * * Sideeffects: * Issues SSL_accept or SSL_connect * * Result: * None. * *------------------------------------------------------* */ int Tls_WaitForConnect(State *statePtr, int *errorCodePtr, int handshakeFailureIsPermanent) { unsigned long backingError; int err, rc; int bioShouldRetry; dprintf("WaitForConnect(%p)", (void *) statePtr); dprintFlags(statePtr); if (!(statePtr->flags & TLS_TCL_INIT)) { dprintf("Tls_WaitForConnect called on already initialized channel -- returning with immediate success"); *errorCodePtr = 0; return(0); } if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) { /* * Different types of operations have different requirements * SSL being established */ if (handshakeFailureIsPermanent) { dprintf("Asked to wait for a TLS handshake that has already failed. Returning fatal error"); *errorCodePtr = ECONNABORTED; } else { dprintf("Asked to wait for a TLS handshake that has already failed. Returning soft error"); *errorCodePtr = ECONNRESET; } return(-1); } for (;;) { /* Not initialized yet! */ if (statePtr->flags & TLS_TCL_SERVER) { dprintf("Calling SSL_accept()"); err = SSL_accept(statePtr->ssl); } else { dprintf("Calling SSL_connect()"); err = SSL_connect(statePtr->ssl); } if (err > 0) { dprintf("That seems to have gone okay"); err = BIO_flush(statePtr->bio); if (err <= 0) { dprintf("Flushing the lower layers failed, this will probably terminate this session"); } } rc = SSL_get_error(statePtr->ssl, err); dprintf("Got error: %i (rc = %i)", err, rc); bioShouldRetry = 0; if (err <= 0) { if (rc == SSL_ERROR_WANT_CONNECT || rc == SSL_ERROR_WANT_ACCEPT || rc == SSL_ERROR_WANT_READ || rc == SSL_ERROR_WANT_WRITE) { bioShouldRetry = 1; } else if (BIO_should_retry(statePtr->bio)) { bioShouldRetry = 1; } else if (rc == SSL_ERROR_SYSCALL && Tcl_GetErrno() == EAGAIN) { bioShouldRetry = 1; } } else { if (!SSL_is_init_finished(statePtr->ssl)) { bioShouldRetry = 1; } } if (bioShouldRetry) { dprintf("The I/O did not complete -- but we should try it again"); if (statePtr->flags & TLS_TCL_ASYNC) { dprintf("Returning EAGAIN so that it can be retried later"); *errorCodePtr = EAGAIN; return(-1); } else { dprintf("Doing so now"); continue; } } dprintf("We have either completely established the session or completely failed it -- there is no more need to ever retry it though"); break; } *errorCodePtr = EINVAL; switch (rc) { case SSL_ERROR_NONE: /* The connection is up, we are done here */ dprintf("The connection is up"); break; case SSL_ERROR_ZERO_RETURN: dprintf("SSL_ERROR_ZERO_RETURN: Connect returned an invalid value...") return(-1); case SSL_ERROR_SYSCALL: backingError = ERR_get_error(); if (backingError == 0 && err == 0) { dprintf("EOF reached") *errorCodePtr = ECONNRESET; } else if (backingError == 0 && err == -1) { dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno()); *errorCodePtr = Tcl_GetErrno(); if (*errorCodePtr == ECONNRESET) { *errorCodePtr = ECONNABORTED; } } else { dprintf("I/O error occurred (backingError = %lu)", backingError); *errorCodePtr = backingError; if (*errorCodePtr == ECONNRESET) { *errorCodePtr = ECONNABORTED; } } statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED; return(-1); case SSL_ERROR_SSL: dprintf("Got permanent fatal SSL error, aborting immediately"); Tls_Error(statePtr, (char *)ERR_reason_error_string(ERR_get_error())); statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED; *errorCodePtr = ECONNABORTED; return(-1); case SSL_ERROR_WANT_CONNECT: case SSL_ERROR_WANT_ACCEPT: case SSL_ERROR_WANT_X509_LOOKUP: default: dprintf("We got a confusing reply: %i", rc); *errorCodePtr = Tcl_GetErrno(); dprintf("ERR(%d, %d) ", rc, *errorCodePtr); return(-1); } #if 0 if (statePtr->flags & TLS_TCL_SERVER) { dprintf("This is an TLS server, checking the certificate for the peer"); err = SSL_get_verify_result(statePtr->ssl); if (err != X509_V_OK) { dprintf("Invalid certificate, returning in failure"); Tls_Error(statePtr, (char *)X509_verify_cert_error_string(err)); statePtr->flags |= TLS_TCL_HANDSHAKE_FAILED; *errorCodePtr = ECONNABORTED; return(-1); } } #endif dprintf("Removing the \"TLS_TCL_INIT\" flag since we have completed the handshake"); statePtr->flags &= ~TLS_TCL_INIT; dprintf("Returning in success"); *errorCodePtr = 0; return(0); } /* *------------------------------------------------------------------- * * TlsInputProc -- * * This procedure is invoked by the generic IO level * to read input from a SSL socket based channel. * * Results: * The number of bytes read is returned or -1 on error. An output * argument contains the POSIX error code on error, or zero if no * error occurred. * * Side effects: * Reads input from the input device of the channel. * *------------------------------------------------------------------- */ static int TlsInputProc(ClientData instanceData, char *buf, int bufSize, int *errorCodePtr) { unsigned long backingError; State *statePtr = (State *) instanceData; int bytesRead; int tlsConnect; int err; *errorCodePtr = 0; dprintf("BIO_read(%d)", bufSize); if (statePtr->flags & TLS_TCL_CALLBACK) { /* don't process any bytes while verify callback is running */ dprintf("Callback is running, reading 0 bytes"); return(0); } dprintf("Calling Tls_WaitForConnect"); tlsConnect = Tls_WaitForConnect(statePtr, errorCodePtr, 0); if (tlsConnect < 0) { dprintf("Got an error waiting to connect (tlsConnect = %i, *errorCodePtr = %i)", tlsConnect, *errorCodePtr); bytesRead = -1; if (*errorCodePtr == ECONNRESET) { dprintf("Got connection reset"); /* Soft EOF */ *errorCodePtr = 0; bytesRead = 0; } return(bytesRead); } /* * We need to clear the SSL error stack now because we sometimes reach * this function with leftover errors in the stack. If BIO_read * returns -1 and intends EAGAIN, there is a leftover error, it will be * misconstrued as an error, not EAGAIN. * * Alternatively, we may want to handle the <0 return codes from * BIO_read specially (as advised in the RSA docs). TLS's lower level BIO * functions play with the retry flags though, and this seems to work * correctly. Similar fix in TlsOutputProc. - hobbs */ ERR_clear_error(); bytesRead = BIO_read(statePtr->bio, buf, bufSize); dprintf("BIO_read -> %d", bytesRead); err = SSL_get_error(statePtr->ssl, bytesRead); #if 0 if (bytesRead <= 0) { if (BIO_should_retry(statePtr->bio)) { dprintf("I/O failed, will retry based on EAGAIN"); *errorCodePtr = EAGAIN; } } #endif switch (err) { case SSL_ERROR_NONE: dprintBuffer(buf, bytesRead); break; case SSL_ERROR_SSL: dprintf("SSL negotiation error, indicating that the connection has been aborted"); Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, bytesRead)); *errorCodePtr = ECONNABORTED; bytesRead = -1; break; case SSL_ERROR_SYSCALL: backingError = ERR_get_error(); if (backingError == 0 && bytesRead == 0) { dprintf("EOF reached") *errorCodePtr = 0; bytesRead = 0; } else if (backingError == 0 && bytesRead == -1) { dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno()); *errorCodePtr = Tcl_GetErrno(); bytesRead = -1; } else { dprintf("I/O error occurred (backingError = %lu)", backingError); *errorCodePtr = backingError; bytesRead = -1; } break; case SSL_ERROR_ZERO_RETURN: dprintf("Got SSL_ERROR_ZERO_RETURN, this means an EOF has been reached"); bytesRead = 0; *errorCodePtr = 0; break; case SSL_ERROR_WANT_READ: dprintf("Got SSL_ERROR_WANT_READ, mapping this to EAGAIN"); bytesRead = -1; *errorCodePtr = EAGAIN; break; default: dprintf("Unknown error (err = %i), mapping to EOF", err); *errorCodePtr = 0; bytesRead = 0; break; } dprintf("Input(%d) -> %d [%d]", bufSize, bytesRead, *errorCodePtr); return(bytesRead); } /* *------------------------------------------------------------------- * * TlsOutputProc -- * * This procedure is invoked by the generic IO level * to write output to a SSL socket based channel. * * Results: * The number of bytes written is returned. An output argument is * set to a POSIX error code if an error occurred, or zero. * * Side effects: * Writes output on the output device of the channel. * *------------------------------------------------------------------- */ static int TlsOutputProc(ClientData instanceData, const char *buf, int toWrite, int *errorCodePtr) { unsigned long backingError; State *statePtr = (State *) instanceData; int written, err; int tlsConnect; *errorCodePtr = 0; dprintf("BIO_write(%p, %d)", (void *) statePtr, toWrite); dprintBuffer(buf, toWrite); if (statePtr->flags & TLS_TCL_CALLBACK) { dprintf("Don't process output while callbacks are running"); written = -1; *errorCodePtr = EAGAIN; return(-1); } dprintf("Calling Tls_WaitForConnect"); tlsConnect = Tls_WaitForConnect(statePtr, errorCodePtr, 1); if (tlsConnect < 0) { dprintf("Got an error waiting to connect (tlsConnect = %i, *errorCodePtr = %i)", tlsConnect, *errorCodePtr); written = -1; if (*errorCodePtr == ECONNRESET) { dprintf("Got connection reset"); /* Soft EOF */ *errorCodePtr = 0; written = 0; } return(written); } if (toWrite == 0) { dprintf("zero-write"); err = BIO_flush(statePtr->bio); if (err <= 0) { dprintf("Flushing failed"); *errorCodePtr = EIO; written = 0; return(-1); } written = 0; *errorCodePtr = 0; return(0); } /* * We need to clear the SSL error stack now because we sometimes reach * this function with leftover errors in the stack. If BIO_write * returns -1 and intends EAGAIN, there is a leftover error, it will be * misconstrued as an error, not EAGAIN. * * Alternatively, we may want to handle the <0 return codes from * BIO_write specially (as advised in the RSA docs). TLS's lower level * BIO functions play with the retry flags though, and this seems to * work correctly. Similar fix in TlsInputProc. - hobbs */ ERR_clear_error(); written = BIO_write(statePtr->bio, buf, toWrite); dprintf("BIO_write(%p, %d) -> [%d]", (void *) statePtr, toWrite, written); err = SSL_get_error(statePtr->ssl, written); switch (err) { case SSL_ERROR_NONE: if (written < 0) { written = 0; } break; case SSL_ERROR_WANT_WRITE: dprintf("Got SSL_ERROR_WANT_WRITE, mapping it to EAGAIN"); *errorCodePtr = EAGAIN; written = -1; break; case SSL_ERROR_WANT_READ: dprintf(" write R BLOCK"); break; case SSL_ERROR_WANT_X509_LOOKUP: dprintf(" write X BLOCK"); break; case SSL_ERROR_ZERO_RETURN: dprintf(" closed"); written = 0; *errorCodePtr = 0; break; case SSL_ERROR_SYSCALL: backingError = ERR_get_error(); if (backingError == 0 && written == 0) { dprintf("EOF reached") *errorCodePtr = 0; written = 0; } else if (backingError == 0 && written == -1) { dprintf("I/O error occurred (errno = %lu)", (unsigned long) Tcl_GetErrno()); *errorCodePtr = Tcl_GetErrno(); written = -1; } else { dprintf("I/O error occurred (backingError = %lu)", backingError); *errorCodePtr = backingError; written = -1; } break; case SSL_ERROR_SSL: Tls_Error(statePtr, TCLTLS_SSL_ERROR(statePtr->ssl, written)); *errorCodePtr = ECONNABORTED; written = -1; break; default: dprintf(" unknown err: %d", err); break; } dprintf("Output(%d) -> %d", toWrite, written); return(written); } /* *------------------------------------------------------------------- * * TlsSetOptionProc -- * * Computes an option value for a SSL socket based channel, or a * list of all options and their values. * * Results: * A standard Tcl result. The value of the specified option or a * list of all options and their values is returned in the * supplied DString. * * Side effects: * None. * *------------------------------------------------------------------- */ static int TlsSetOptionProc(ClientData instanceData, /* Socket state. */ Tcl_Interp *interp, /* For errors - can be NULL. */ const char *optionName, /* Name of the option to set the value for, or * NULL to get all options and their values. */ const char *optionValue) /* Value for option. */ { State *statePtr = (State *) instanceData; Tcl_Channel downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH); Tcl_DriverSetOptionProc *setOptionProc; setOptionProc = Tcl_ChannelSetOptionProc(Tcl_GetChannelType(downChan)); if (setOptionProc != NULL) { return (*setOptionProc)(Tcl_GetChannelInstanceData(downChan), interp, optionName, optionValue); } else if (optionName == (char*) NULL) { /* * Request is query for all options, this is ok. */ return TCL_OK; } /* * Request for a specific option has to fail, we don't have any. */ return TCL_ERROR; } /* *------------------------------------------------------------------- * * TlsGetOptionProc -- * * Computes an option value for a SSL socket based channel, or a * list of all options and their values. * * Results: * A standard Tcl result. The value of the specified option or a * list of all options and their values is returned in the * supplied DString. * * Side effects: * None. * *------------------------------------------------------------------- */ static int TlsGetOptionProc(ClientData instanceData, /* Socket state. */ Tcl_Interp *interp, /* For errors - can be NULL. */ const char *optionName, /* Name of the option to retrieve the value for, or * NULL to get all options and their values. */ Tcl_DString *dsPtr) /* Where to store the computed value initialized by caller. */ { State *statePtr = (State *) instanceData; Tcl_Channel downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH); Tcl_DriverGetOptionProc *getOptionProc; getOptionProc = Tcl_ChannelGetOptionProc(Tcl_GetChannelType(downChan)); if (getOptionProc != NULL) { return (*getOptionProc)(Tcl_GetChannelInstanceData(downChan), interp, optionName, dsPtr); } else if (optionName == (char*) NULL) { /* * Request is query for all options, this is ok. */ return TCL_OK; } /* * Request for a specific option has to fail, we don't have any. */ return TCL_ERROR; } /* *------------------------------------------------------------------- * * TlsWatchProc -- * * Initialize the notifier to watch Tcl_Files from this channel. * * Results: * None. * * Side effects: * Sets up the notifier so that a future event on the channel * will be seen by Tcl. * *------------------------------------------------------------------- */ static void TlsWatchProc(ClientData instanceData, /* The socket state. */ int mask) /* Events of interest; an OR-ed combination of * TCL_READABLE, TCL_WRITABLE and TCL_EXCEPTION. */ { Tcl_Channel downChan; State *statePtr = (State *) instanceData; dprintf("TlsWatchProc(0x%x)", mask); /* Pretend to be dead as long as the verify callback is running. * Otherwise that callback could be invoked recursively. */ if (statePtr->flags & TLS_TCL_CALLBACK) { dprintf("Callback is on-going, doing nothing"); return; } dprintFlags(statePtr); downChan = Tls_GetParent(statePtr, TLS_TCL_FASTPATH); if (statePtr->flags & TLS_TCL_HANDSHAKE_FAILED) { dprintf("Asked to watch a socket with a failed handshake -- nothing can happen here"); dprintf("Unregistering interest in the lower channel"); (Tcl_GetChannelType(downChan))->watchProc(Tcl_GetChannelInstanceData(downChan), 0); statePtr->watchMask = 0; return; } statePtr->watchMask = mask; /* No channel handlers any more. We will be notified automatically * about events on the channel below via a call to our * 'TransformNotifyProc'. But we have to pass the interest down now. * We are allowed to add additional 'interest' to the mask if we want * to. But this transformation has no such interest. It just passes * the request down, unchanged. */ dprintf("Registering our interest in the lower channel (chan=%p)", (void *) downChan); (Tcl_GetChannelType(downChan))->watchProc(Tcl_GetChannelInstanceData(downChan), mask); /* * Management of the internal timer. */ if (statePtr->timer != (Tcl_TimerToken) NULL) { dprintf("A timer was found, deleting it"); Tcl_DeleteTimerHandler(statePtr->timer); statePtr->timer = (Tcl_TimerToken) NULL; } if ((mask & TCL_READABLE) && ((Tcl_InputBuffered(statePtr->self) > 0) || (BIO_ctrl_pending(statePtr->bio) > 0))) { /* * There is interest in readable events and we actually have * data waiting, so generate a timer to flush that. */ dprintf("Creating a new timer since data appears to be waiting"); statePtr->timer = Tcl_CreateTimerHandler(TLS_TCL_DELAY, TlsChannelHandlerTimer, (ClientData) statePtr); } } /* *------------------------------------------------------------------- * * TlsGetHandleProc -- * * Called from Tcl_GetChannelFile to retrieve o/s file handler * from the SSL socket based channel. * * Results: * The appropriate Tcl_File or NULL if not present. * * Side effects: * None. * *------------------------------------------------------------------- */ static int TlsGetHandleProc(ClientData instanceData, int direction, ClientData *handlePtr) { State *statePtr = (State *) instanceData; return(Tcl_GetChannelHandle(Tls_GetParent(statePtr, TLS_TCL_FASTPATH), direction, handlePtr)); } /* *------------------------------------------------------------------- * * TlsNotifyProc -- * * Handler called by Tcl to inform us of activity * on the underlying channel. * * Results: * None. * * Side effects: * May process the incoming event by itself. * *------------------------------------------------------------------- */ static int TlsNotifyProc(ClientData instanceData, int mask) { State *statePtr = (State *) instanceData; int errorCode; /* * An event occurred in the underlying channel. This * transformation doesn't process such events thus returns the * incoming mask unchanged. */ if (statePtr->timer != (Tcl_TimerToken) NULL) { /* * Delete an existing timer. It was not fired, yet we are * here, so the channel below generated such an event and we * don't have to. The renewal of the interest after the * execution of channel handlers will eventually cause us to * recreate the timer (in WatchProc). */ Tcl_DeleteTimerHandler(statePtr->timer); statePtr->timer = (Tcl_TimerToken) NULL; } if (statePtr->flags & TLS_TCL_CALLBACK) { dprintf("Returning 0 due to callback"); return 0; } dprintf("Calling Tls_WaitForConnect"); errorCode = 0; if (Tls_WaitForConnect(statePtr, &errorCode, 1) < 0) { if (errorCode == EAGAIN) { dprintf("Async flag could be set (didn't check) and errorCode == EAGAIN: Returning 0"); return 0; } dprintf("Tls_WaitForConnect returned an error"); } dprintf("Returning %i", mask); return(mask); } #if 0 /* *------------------------------------------------------* * * TlsChannelHandler -- * * ------------------------------------------------* * Handler called by Tcl as a result of * Tcl_CreateChannelHandler - to inform us of activity * on the underlying channel. * ------------------------------------------------* * * Sideeffects: * May generate subsequent calls to * Tcl_NotifyChannel. * * Result: * None. * *------------------------------------------------------* */ static void TlsChannelHandler (ClientData clientData, int mask) { State *statePtr = (State *) clientData; dprintf("HANDLER(0x%x)", mask); Tcl_Preserve((ClientData)statePtr); if (mask & TCL_READABLE) { BIO_set_flags(statePtr->p_bio, BIO_FLAGS_READ); } else { BIO_clear_flags(statePtr->p_bio, BIO_FLAGS_READ); } if (mask & TCL_WRITABLE) { BIO_set_flags(statePtr->p_bio, BIO_FLAGS_WRITE); } else { BIO_clear_flags(statePtr->p_bio, BIO_FLAGS_WRITE); } mask = 0; if (BIO_wpending(statePtr->bio)) { mask |= TCL_WRITABLE; } if (BIO_pending(statePtr->bio)) { mask |= TCL_READABLE; } /* * The following NotifyChannel calls seems to be important, but * we don't know why. It looks like if the mask is ever non-zero * that it will enter an infinite loop. * * Notify the upper channel of the current BIO state so the event * continues to propagate up the chain. * * stanton: It looks like this could result in an infinite loop if * the upper channel doesn't cause ChannelHandler to be removed * before Tcl_NotifyChannel calls channel handlers on the lower channel. */ Tcl_NotifyChannel(statePtr->self, mask); if (statePtr->timer != (Tcl_TimerToken)NULL) { Tcl_DeleteTimerHandler(statePtr->timer); statePtr->timer = (Tcl_TimerToken)NULL; } if ((mask & TCL_READABLE) && Tcl_InputBuffered(statePtr->self) > 0) { /* * Data is waiting, flush it out in short time */ statePtr->timer = Tcl_CreateTimerHandler(TLS_TCL_DELAY, TlsChannelHandlerTimer, (ClientData) statePtr); } Tcl_Release((ClientData)statePtr); } #endif /* *------------------------------------------------------* * * TlsChannelHandlerTimer -- * * ------------------------------------------------* * Called by the notifier (-> timer) to flush out * information waiting in channel buffers. * ------------------------------------------------* * * Sideeffects: * As of 'TlsChannelHandler'. * * Result: * None. * *------------------------------------------------------* */ static void TlsChannelHandlerTimer(ClientData clientData) { State *statePtr = (State *) clientData; int mask = 0; dprintf("Called"); statePtr->timer = (Tcl_TimerToken) NULL; if (BIO_wpending(statePtr->bio)) { dprintf("[chan=%p] BIO writable", statePtr->self); mask |= TCL_WRITABLE; } if (BIO_pending(statePtr->bio)) { dprintf("[chan=%p] BIO readable", statePtr->self); mask |= TCL_READABLE; } dprintf("Notifying ourselves"); Tcl_NotifyChannel(statePtr->self, mask); dprintf("Returning"); return; } Tcl_Channel Tls_GetParent(State *statePtr, int maskFlags) { dprintf("Requested to get parent of channel %p", statePtr->self); if ((statePtr->flags & ~maskFlags) & TLS_TCL_FASTPATH) { dprintf("Asked to get the parent channel while we are using FastPath -- returning NULL"); return(NULL); } return(Tcl_GetStackedChannel(statePtr->self)); } /* *------------------------------------------------------------------- * * Tls_ChannelType -- * * Return the correct TLS channel driver info * * Results: * The correct channel driver for the current version of Tcl. * * Side effects: * None. * *------------------------------------------------------------------- */ Tcl_ChannelType *Tls_ChannelType(void) { unsigned int size; /* * Initialize the channel type if necessary */ if (tlsChannelType == NULL) { /* * Allocate new channeltype structure */ size = sizeof(Tcl_ChannelType); /* Base size */ tlsChannelType = (Tcl_ChannelType *) ckalloc(size); memset((void *) tlsChannelType, 0, size); tlsChannelType->typeName = "tls"; #ifdef TCL_CHANNEL_VERSION_5 tlsChannelType->version = TCL_CHANNEL_VERSION_5; tlsChannelType->closeProc = TlsCloseProc; tlsChannelType->inputProc = TlsInputProc; tlsChannelType->outputProc = TlsOutputProc; tlsChannelType->seekProc = NULL; tlsChannelType->setOptionProc = TlsSetOptionProc; tlsChannelType->getOptionProc = TlsGetOptionProc; tlsChannelType->watchProc = TlsWatchProc; tlsChannelType->getHandleProc = TlsGetHandleProc; tlsChannelType->close2Proc = TlsCloseProc2; tlsChannelType->blockModeProc = TlsBlockModeProc; tlsChannelType->flushProc = NULL; tlsChannelType->handlerProc = TlsNotifyProc; tlsChannelType->wideSeekProc = NULL; tlsChannelType->threadActionProc = NULL; tlsChannelType->truncateProc = NULL; #else tlsChannelType->version = TCL_CHANNEL_VERSION_2; tlsChannelType->closeProc = TlsCloseProc; tlsChannelType->inputProc = TlsInputProc; tlsChannelType->outputProc = TlsOutputProc; tlsChannelType->seekProc = NULL; tlsChannelType->setOptionProc = TlsSetOptionProc; tlsChannelType->getOptionProc = TlsGetOptionProc; tlsChannelType->watchProc = TlsWatchProc; tlsChannelType->getHandleProc = TlsGetHandleProc; tlsChannelType->close2Proc = NULL; tlsChannelType->blockModeProc = TlsBlockModeProc; tlsChannelType->flushProc = NULL; tlsChannelType->handlerProc = TlsNotifyProc; #endif } return(tlsChannelType); } |
Added generic/tlsInt.h version [9a55e93f5a].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 | /* * Copyright (C) 1997-2000 Matt Newman <[email protected]> * * TLS (aka SSL) Channel - can be layered on any bi-directional * Tcl_Channel (Note: Requires Trf Core Patch) * * This was built from scratch based upon observation of OpenSSL 0.9.2B * * Addition credit is due for Andreas Kupries ([email protected]), for * providing the Tcl_ReplaceChannel mechanism and working closely with me * to enhance it to support full fileevent semantics. * * Also work done by the follow people provided the impetus to do this "right":- * tclSSL (Colin McCormack, Shared Technology) * SSLtcl (Peter Antman) * */ #ifndef _TLSINT_H #define _TLSINT_H #include "tls.h" #include <errno.h> #include <string.h> #include <stdint.h> #ifdef _WIN32 #define WIN32_LEAN_AND_MEAN #include <windows.h> #include <wincrypt.h> /* OpenSSL needs this on Windows */ #endif /* Handle TCL 8.6 CONST changes */ #ifndef CONST86 #define CONST86 #endif #ifdef NO_PATENTS # define NO_IDEA # define NO_RC2 # define NO_RC4 # define NO_RC5 # define NO_RSA # ifndef NO_SSL2 # define NO_SSL2 # endif #endif #include <openssl/ssl.h> #include <openssl/err.h> #include <openssl/rand.h> #include <openssl/opensslv.h> /* * Determine if we should use the pre-OpenSSL 1.1.0 API */ #undef TCLTLS_OPENSSL_PRE_1_1 #if (defined(LIBRESSL_VERSION_NUMBER)) || OPENSSL_VERSION_NUMBER < 0x10100000L # define TCLTLS_OPENSSL_PRE_1_1_API 1 #endif #ifndef ECONNABORTED #define ECONNABORTED 130 /* Software caused connection abort */ #endif #ifndef ECONNRESET #define ECONNRESET 131 /* Connection reset by peer */ #endif #ifdef TCLEXT_TCLTLS_DEBUG #include <ctype.h> #define dprintf(...) { \ char dprintfBuffer[8192], *dprintfBuffer_p; \ dprintfBuffer_p = &dprintfBuffer[0]; \ dprintfBuffer_p += sprintf(dprintfBuffer_p, "%s:%i:%s():", __FILE__, __LINE__, __func__); \ dprintfBuffer_p += sprintf(dprintfBuffer_p, __VA_ARGS__); \ fprintf(stderr, "%s\n", dprintfBuffer); \ } #define dprintBuffer(bufferName, bufferLength) { \ int dprintBufferIdx; \ unsigned char dprintBufferChar; \ fprintf(stderr, "%s:%i:%s():%s[%llu]={", __FILE__, __LINE__, __func__, #bufferName, (unsigned long long) bufferLength); \ for (dprintBufferIdx = 0; dprintBufferIdx < bufferLength; dprintBufferIdx++) { \ dprintBufferChar = bufferName[dprintBufferIdx]; \ if (isalpha(dprintBufferChar) || isdigit(dprintBufferChar)) { \ fprintf(stderr, "'%c' ", dprintBufferChar); \ } else { \ fprintf(stderr, "%02x ", (unsigned int) dprintBufferChar); \ }; \ }; \ fprintf(stderr, "}\n"); \ } #define dprintFlags(statePtr) { \ char dprintfBuffer[8192], *dprintfBuffer_p; \ dprintfBuffer_p = &dprintfBuffer[0]; \ dprintfBuffer_p += sprintf(dprintfBuffer_p, "%s:%i:%s():%s->flags=0", __FILE__, __LINE__, __func__, #statePtr); \ if (((statePtr)->flags & TLS_TCL_ASYNC) == TLS_TCL_ASYNC) { dprintfBuffer_p += sprintf(dprintfBuffer_p, "|TLS_TCL_ASYNC"); }; \ if (((statePtr)->flags & TLS_TCL_SERVER) == TLS_TCL_SERVER) { dprintfBuffer_p += sprintf(dprintfBuffer_p, "|TLS_TCL_SERVER"); }; \ if (((statePtr)->flags & TLS_TCL_INIT) == TLS_TCL_INIT) { dprintfBuffer_p += sprintf(dprintfBuffer_p, "|TLS_TCL_INIT"); }; \ if (((statePtr)->flags & TLS_TCL_DEBUG) == TLS_TCL_DEBUG) { dprintfBuffer_p += sprintf(dprintfBuffer_p, "|TLS_TCL_DEBUG"); }; \ if (((statePtr)->flags & TLS_TCL_CALLBACK) == TLS_TCL_CALLBACK) { dprintfBuffer_p += sprintf(dprintfBuffer_p, "|TLS_TCL_CALLBACK"); }; \ if (((statePtr)->flags & TLS_TCL_HANDSHAKE_FAILED) == TLS_TCL_HANDSHAKE_FAILED) { dprintfBuffer_p += sprintf(dprintfBuffer_p, "|TLS_TCL_HANDSHAKE_FAILED"); }; \ if (((statePtr)->flags & TLS_TCL_FASTPATH) == TLS_TCL_FASTPATH) { dprintfBuffer_p += sprintf(dprintfBuffer_p, "|TLS_TCL_FASTPATH"); }; \ fprintf(stderr, "%s\n", dprintfBuffer); \ } #else #define dprintf(...) if (0) { fprintf(stderr, __VA_ARGS__); } #define dprintBuffer(bufferName, bufferLength) /**/ #define dprintFlags(statePtr) /**/ #endif #define TCLTLS_SSL_ERROR(ssl,err) ((char*)ERR_reason_error_string((unsigned long)SSL_get_error((ssl),(err)))) /* * OpenSSL BIO Routines */ #define BIO_TYPE_TCL (19|0x0400) /* * Defines for State.flags */ #define TLS_TCL_ASYNC (1<<0) /* non-blocking mode */ #define TLS_TCL_SERVER (1<<1) /* Server-Side */ #define TLS_TCL_INIT (1<<2) /* Initializing connection */ #define TLS_TCL_DEBUG (1<<3) /* Show debug tracing */ #define TLS_TCL_CALLBACK (1<<4) /* In a callback, prevent update * looping problem. [Bug 1652380] */ #define TLS_TCL_HANDSHAKE_FAILED (1<<5) /* Set on handshake failures and once set, all * further I/O will result in ECONNABORTED errors. */ #define TLS_TCL_FASTPATH (1<<6) /* The parent channel is being used directly by the SSL library */ #define TLS_TCL_DELAY (5) /* * This structure describes the per-instance state of an SSL channel. * * The SSL processing context is maintained here, in the ClientData */ typedef struct State { Tcl_Channel self; /* this socket channel */ Tcl_TimerToken timer; int flags; /* see State.flags above */ int watchMask; /* current WatchProc mask */ int mode; /* current mode of parent channel */ Tcl_Interp *interp; /* interpreter in which this resides */ Tcl_Obj *callback; /* script called for tracing, verifying and errors */ Tcl_Obj *password; /* script called for certificate password */ int vflags; /* verify flags */ SSL *ssl; /* Struct for SSL processing */ SSL_CTX *ctx; /* SSL Context */ BIO *bio; /* Struct for SSL processing */ BIO *p_bio; /* Parent BIO (that is layered on Tcl_Channel) */ char *err; } State; #ifdef USE_TCL_STUBS #ifndef Tcl_StackChannel #error "Unable to compile on this version of Tcl" #endif /* Tcl_GetStackedChannel */ #endif /* USE_TCL_STUBS */ /* * Forward declarations */ Tcl_ChannelType *Tls_ChannelType(void); Tcl_Channel Tls_GetParent(State *statePtr, int maskFlags); Tcl_Obj *Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert); void Tls_Error(State *statePtr, char *msg); void Tls_Free(char *blockPtr); void Tls_Clean(State *statePtr); int Tls_WaitForConnect(State *statePtr, int *errorCodePtr, int handshakeFailureIsPermanent); BIO *BIO_new_tcl(State* statePtr, int flags); #define PTR2INT(x) ((int) ((intptr_t) (x))) #endif /* _TLSINT_H */ |
Added generic/tlsX509.c version [d4377f05cd].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 | /* * Copyright (C) 1997-2000 Sensus Consulting Ltd. * Matt Newman <[email protected]> */ #include <tcl.h> #include <stdio.h> #include <openssl/bio.h> #include <openssl/sha.h> #include <openssl/x509.h> #include <openssl/asn1.h> #include "tlsInt.h" /* * Ensure these are not macros - known to be defined on Win32 */ #ifdef min #undef min #endif #ifdef max #undef max #endif static int min(int a, int b) { return (a < b) ? a : b; } static int max(int a, int b) { return (a > b) ? a : b; } /* * ASN1_UTCTIME_tostr -- */ static char * ASN1_UTCTIME_tostr(ASN1_UTCTIME *tm) { static char bp[128]; char *v; int gmt=0; static char *mon[12]={ "Jan","Feb","Mar","Apr","May","Jun", "Jul","Aug","Sep","Oct","Nov","Dec"}; int i; int y=0,M=0,d=0,h=0,m=0,s=0; i=tm->length; v=(char *)tm->data; if (i < 10) goto err; if (v[i-1] == 'Z') gmt=1; for (i=0; i<10; i++) if ((v[i] > '9') || (v[i] < '0')) goto err; y= (v[0]-'0')*10+(v[1]-'0'); if (y < 70) y+=100; M= (v[2]-'0')*10+(v[3]-'0'); if ((M > 12) || (M < 1)) goto err; d= (v[4]-'0')*10+(v[5]-'0'); h= (v[6]-'0')*10+(v[7]-'0'); m= (v[8]-'0')*10+(v[9]-'0'); if ((v[10] >= '0') && (v[10] <= '9') && (v[11] >= '0') && (v[11] <= '9')) s= (v[10]-'0')*10+(v[11]-'0'); sprintf(bp,"%s %2d %02d:%02d:%02d %d%s", mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":""); return bp; err: return "Bad time value"; } /* *------------------------------------------------------* * * Tls_NewX509Obj -- * * ------------------------------------------------* * Converts a X509 certificate into a Tcl_Obj * ------------------------------------------------* * * Sideeffects: * None * * Result: * A Tcl List Object representing the provided * X509 certificate. * *------------------------------------------------------* */ #define CERT_STR_SIZE 16384 Tcl_Obj* Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert) { Tcl_Obj *certPtr = Tcl_NewListObj(0, NULL); BIO *bio; int n; unsigned long flags; char subject[BUFSIZ]; char issuer[BUFSIZ]; char serial[BUFSIZ]; char notBefore[BUFSIZ]; char notAfter[BUFSIZ]; char certStr[CERT_STR_SIZE], *certStr_p; int certStr_len, toRead; #ifndef NO_SSL_SHA char sha1_hash_ascii[SHA_DIGEST_LENGTH * 2 + 1]; unsigned char sha1_hash_binary[SHA_DIGEST_LENGTH]; char sha256_hash_ascii[SHA256_DIGEST_LENGTH * 2 + 1]; unsigned char sha256_hash_binary[SHA256_DIGEST_LENGTH]; const char *shachars="0123456789ABCDEF"; sha1_hash_ascii[SHA_DIGEST_LENGTH * 2] = '\0'; sha256_hash_ascii[SHA256_DIGEST_LENGTH * 2] = '\0'; #endif certStr[0] = 0; if ((bio = BIO_new(BIO_s_mem())) == NULL) { subject[0] = 0; issuer[0] = 0; serial[0] = 0; } else { flags = XN_FLAG_RFC2253 | ASN1_STRFLGS_UTF8_CONVERT; flags &= ~ASN1_STRFLGS_ESC_MSB; X509_NAME_print_ex(bio, X509_get_subject_name(cert), 0, flags); n = BIO_read(bio, subject, min(BIO_pending(bio), BUFSIZ - 1)); n = max(n, 0); subject[n] = 0; (void)BIO_flush(bio); X509_NAME_print_ex(bio, X509_get_issuer_name(cert), 0, flags); n = BIO_read(bio, issuer, min(BIO_pending(bio), BUFSIZ - 1)); n = max(n, 0); issuer[n] = 0; (void)BIO_flush(bio); i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert)); n = BIO_read(bio, serial, min(BIO_pending(bio), BUFSIZ - 1)); n = max(n, 0); serial[n] = 0; (void)BIO_flush(bio); if (PEM_write_bio_X509(bio, cert)) { certStr_p = certStr; certStr_len = 0; while (1) { toRead = min(BIO_pending(bio), CERT_STR_SIZE - certStr_len - 1); toRead = min(toRead, BUFSIZ); if (toRead == 0) { break; } dprintf("Reading %i bytes from the certificate...", toRead); n = BIO_read(bio, certStr_p, toRead); if (n <= 0) { break; } certStr_len += n; certStr_p += n; } *certStr_p = '\0'; (void)BIO_flush(bio); } BIO_free(bio); } #if OPENSSL_VERSION_NUMBER < 0x10100000L strcpy(notBefore, ASN1_UTCTIME_tostr(X509_get_notBefore(cert))); strcpy(notAfter, ASN1_UTCTIME_tostr(X509_get_notAfter(cert))); #else strcpy(notBefore, ASN1_UTCTIME_tostr(X509_getm_notBefore(cert))); strcpy(notAfter, ASN1_UTCTIME_tostr(X509_getm_notAfter(cert))); #endif #ifndef NO_SSL_SHA /* SHA1 */ X509_digest(cert, EVP_sha1(), sha1_hash_binary, NULL); for (int n = 0; n < SHA_DIGEST_LENGTH; n++) { sha1_hash_ascii[n*2] = shachars[(sha1_hash_binary[n] & 0xF0) >> 4]; sha1_hash_ascii[n*2+1] = shachars[(sha1_hash_binary[n] & 0x0F)]; } Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj("sha1_hash", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj(sha1_hash_ascii, SHA_DIGEST_LENGTH * 2) ); /* SHA256 */ X509_digest(cert, EVP_sha256(), sha256_hash_binary, NULL); for (int n = 0; n < SHA256_DIGEST_LENGTH; n++) { sha256_hash_ascii[n*2] = shachars[(sha256_hash_binary[n] & 0xF0) >> 4]; sha256_hash_ascii[n*2+1] = shachars[(sha256_hash_binary[n] & 0x0F)]; } Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( "sha256_hash", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( sha256_hash_ascii, SHA256_DIGEST_LENGTH * 2) ); #endif Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( "subject", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( subject, -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( "issuer", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( issuer, -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( "notBefore", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( notBefore, -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( "notAfter", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( notAfter, -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( "serial", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( serial, -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( "certificate", -1) ); Tcl_ListObjAppendElement( interp, certPtr, Tcl_NewStringObj( certStr, -1) ); return certPtr; } |
Added library/tls.tcl version [3524eca483].
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 | # # Copyright (C) 1997-2000 Matt Newman <[email protected]> # namespace eval tls { variable logcmd tclLog variable debug 0 # Default flags passed to tls::import variable defaults {} # Maps UID to Server Socket variable srvmap variable srvuid 0 # Over-ride this if you are using a different socket command variable socketCmd if {![info exists socketCmd]} { set socketCmd [info command ::socket] } # This is the possible arguments to tls::socket and tls::init # The format of this is a list of lists ## Each inner list contains the following elements ### Server (matched against "string match" for 0/1) ### Option name ### Variable to add the option to: #### sopts: [socket] option #### iopts: [tls::import] option ### How many arguments the following the option to consume variable socketOptionRules { {0 -async sopts 0} {* -myaddr sopts 1} {0 -myport sopts 1} {* -type sopts 1} {* -cadir iopts 1} {* -cafile iopts 1} {* -cert iopts 1} {* -certfile iopts 1} {* -cipher iopts 1} {* -command iopts 1} {* -dhparams iopts 1} {* -key iopts 1} {* -keyfile iopts 1} {* -password iopts 1} {* -request iopts 1} {* -require iopts 1} {* -autoservername discardOpts 1} {* -servername iopts 1} {* -alpn iopts 1} {* -ssl2 iopts 1} {* -ssl3 iopts 1} {* -tls1 iopts 1} {* -tls1.1 iopts 1} {* -tls1.2 iopts 1} {* -tls1.3 iopts 1} } # tls::socket and tls::init options as a humane readable string variable socketOptionsNoServer variable socketOptionsServer # Internal [switch] body to validate options variable socketOptionsSwitchBody } proc tls::_initsocketoptions {} { variable socketOptionRules variable socketOptionsNoServer variable socketOptionsServer variable socketOptionsSwitchBody # Do not re-run if we have already been initialized if {[info exists socketOptionsSwitchBody]} { return } # Create several structures from our list of options ## 1. options: a text representation of the valid options for the current ## server type ## 2. argSwitchBody: Switch body for processing arguments set options(0) [list] set options(1) [list] set argSwitchBody [list] foreach optionRule $socketOptionRules { set ruleServer [lindex $optionRule 0] set ruleOption [lindex $optionRule 1] set ruleVarToUpdate [lindex $optionRule 2] set ruleVarArgsToConsume [lindex $optionRule 3] foreach server [list 0 1] { if {![string match $ruleServer $server]} { continue } lappend options($server) $ruleOption } switch -- $ruleVarArgsToConsume { 0 { set argToExecute { lappend @VAR@ $arg set argsArray($arg) true } } 1 { set argToExecute { incr idx if {$idx >= [llength $args]} { return -code error "\"$arg\" option must be followed by value" } set argValue [lindex $args $idx] lappend @VAR@ $arg $argValue set argsArray($arg) $argValue } } default { return -code error "Internal argument construction error" } } lappend argSwitchBody $ruleServer,$ruleOption [string map [list @VAR@ $ruleVarToUpdate] $argToExecute] } # Add in the final options lappend argSwitchBody {*,-*} {return -code error "bad option \"$arg\": must be one of $options"} lappend argSwitchBody default break # Set the final variables set socketOptionsNoServer [join $options(0) {, }] set socketOptionsServer [join $options(1) {, }] set socketOptionsSwitchBody $argSwitchBody } proc tls::initlib {dir dll} { # Package index cd's into the package directory for loading. # Irrelevant to unixoids, but for Windows this enables the OS to find # the dependent DLL's in the CWD, where they may be. set cwd [pwd] catch {cd $dir} if {[string equal $::tcl_platform(platform) "windows"] && ![string equal [lindex [file system $dir] 0] "native"]} { # If it is a wrapped executable running on windows, the openssl # dlls must be copied out of the virtual filesystem to the disk # where Windows will find them when resolving the dependency in # the tls dll. We choose to make them siblings of the executable. package require starkit set dst [file nativename [file dirname $starkit::topdir]] foreach sdll [glob -nocomplain -directory $dir -tails libssl32.dll libcrypto*.dll libssl*.dll libssp*.dll] { catch {file delete -force $dst/$sdll} catch {file copy -force $dir/$sdll $dst/$sdll} } } set res [catch {uplevel #0 [list load [file join [pwd] $dll]]} err] catch {cd $cwd} if {$res} { namespace eval [namespace parent] {namespace delete tls} return -code $res $err } rename tls::initlib {} } # # Backwards compatibility, also used to set the default # context options # proc tls::init {args} { variable defaults variable socketOptionsNoServer variable socketOptionsServer variable socketOptionsSwitchBody tls::_initsocketoptions # Technically a third option should be used here: Options that are valid # only a both servers and non-servers set server -1 set options $socketOptionsServer # Validate arguments passed set initialArgs $args set argc [llength $args] array set argsArray [list] for {set idx 0} {$idx < $argc} {incr idx} { set arg [lindex $args $idx] switch -glob -- $server,$arg $socketOptionsSwitchBody } set defaults $initialArgs } # # Helper function - behaves exactly as the native socket command. # proc tls::socket {args} { variable socketCmd variable defaults variable socketOptionsNoServer variable socketOptionsServer variable socketOptionsSwitchBody tls::_initsocketoptions set idx [lsearch $args -server] if {$idx != -1} { set server 1 set callback [lindex $args [expr {$idx+1}]] set args [lreplace $args $idx [expr {$idx+1}]] set usage "wrong # args: should be \"tls::socket -server command ?options? port\"" set options $socketOptionsServer } else { set server 0 set usage "wrong # args: should be \"tls::socket ?options? host port\"" set options $socketOptionsNoServer } # Combine defaults with current options set args [concat $defaults $args] set argc [llength $args] set sopts {} set iopts [list -server $server] array set argsArray [list] for {set idx 0} {$idx < $argc} {incr idx} { set arg [lindex $args $idx] switch -glob -- $server,$arg $socketOptionsSwitchBody } if {$server} { if {($idx + 1) != $argc} { return -code error $usage } set uid [incr ::tls::srvuid] set port [lindex $args [expr {$argc-1}]] lappend sopts $port #set sopts [linsert $sopts 0 -server $callback] set sopts [linsert $sopts 0 -server [list tls::_accept $iopts $callback]] #set sopts [linsert $sopts 0 -server [list tls::_accept $uid $callback]] } else { if {($idx + 2) != $argc} { return -code error $usage } set host [lindex $args [expr {$argc-2}]] set port [lindex $args [expr {$argc-1}]] # If an "-autoservername" option is found, honor it if {[info exists argsArray(-autoservername)] && $argsArray(-autoservername)} { if {![info exists argsArray(-servername)]} { set argsArray(-servername) $host lappend iopts -servername $host } } lappend sopts $host $port } # # Create TCP/IP socket # set chan [eval $socketCmd $sopts] if {!$server && [catch { # # Push SSL layer onto socket # eval [list tls::import] $chan $iopts } err]} { set info ${::errorInfo} catch {close $chan} return -code error -errorinfo $info $err } return $chan } # tls::_accept -- # # This is the actual accept that TLS sockets use, which then calls # the callback registered by tls::socket. # # Arguments: # iopts tls::import opts # callback server callback to invoke # chan socket channel to accept/deny # ipaddr calling IP address # port calling port # # Results: # Returns an error if the callback throws one. # proc tls::_accept { iopts callback chan ipaddr port } { log 2 [list tls::_accept $iopts $callback $chan $ipaddr $port] set chan [eval [list tls::import $chan] $iopts] lappend callback $chan $ipaddr $port if {[catch { uplevel #0 $callback } err]} { log 1 "tls::_accept error: ${::errorInfo}" close $chan error $err $::errorInfo $::errorCode } else { log 2 "tls::_accept - called \"$callback\" succeeded" } } # # Sample callback for hooking: - # # error # verify # info # proc tls::callback {option args} { variable debug #log 2 [concat $option $args] switch -- $option { "error" { foreach {chan msg} $args break log 0 "TLS/$chan: error: $msg" } "verify" { # poor man's lassign foreach {chan depth cert rc err} $args break array set c $cert if {$rc != "1"} { log 1 "TLS/$chan: verify/$depth: Bad Cert: $err (rc = $rc)" } else { log 2 "TLS/$chan: verify/$depth: $c(subject)" } if {$debug > 0} { return 1; # FORCE OK } else { return $rc } } "info" { # poor man's lassign foreach {chan major minor state msg} $args break if {$msg != ""} { append state ": $msg" } # For tracing upvar #0 tls::$chan cb set cb($major) $minor log 2 "TLS/$chan: $major/$minor: $state" } default { return -code error "bad option \"$option\":\ must be one of error, info, or verify" } } } proc tls::xhandshake {chan} { upvar #0 tls::$chan cb if {[info exists cb(handshake)] && \ $cb(handshake) == "done"} { return 1 } while {1} { vwait tls::${chan}(handshake) if {![info exists cb(handshake)]} { return 0 } if {$cb(handshake) == "done"} { return 1 } } } proc tls::password {} { log 0 "TLS/Password: did you forget to set your passwd!" # Return the worlds best kept secret password. return "secret" } proc tls::log {level msg} { variable debug variable logcmd if {$level > $debug || $logcmd == ""} { return } set cmd $logcmd lappend cmd $msg uplevel #0 $cmd } |
Deleted tclOpts.h version [26b0fd21c2].
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Deleted tcltls.syms.in version [f4a8c433c1].
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Deleted tcltls.vers version [f9f493f912].
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Deleted tls.c version [4c6200b506].
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Deleted tls.h version [bcbadd0481].
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Deleted tls.htm version [a06ffeb7ad].
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Deleted tls.tcl version [3524eca483].
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Deleted tlsBIO.c version [2e81a5f072].
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Deleted tlsIO.c version [ff0429678e].
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Deleted tlsInt.h version [9a55e93f5a].
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Deleted tlsX509.c version [d4377f05cd].
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