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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>Optional function to set the default options used by
<strong>tls::socket</strong>. 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>
host port</em></a></dt>
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:
<dt><strong>-autoservername</strong> <em>bool</em></dt>
<dd>Automatically send the -servername as the <em>host</em> argument
(default is <em>false</em>)</dd>
?options?</i></a></dt>
socket, but must provide bi-directional flow. Also
setting session parameters for SSL handshake.</dd>
<dt><strong>-alpn</strong> <em>list</em></dt>
<dd>List of protocols to offer during Application-Layer
<dt><strong>-cadir</strong> <em>dir</em></dt>
<dd>Specify 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>Specify the certificate authority (CA) file to use.</dd>
<dt><strong>-certfile</strong> <em>filename</em></dt>
<dd>Specify the filename containing the certificate to use. The
default name is <b>cert.pem</b>. This can be overridden via
the <b>SSL_CERT_FILE</b> environment variable.</dd>
<dt><strong>-cert</strong> <em>filename</em></dt>
<dd>Specify the contents of a certificate to use, as a DER
<dt><strong>-cipher</strong> <em>string</em></dt>
<dd>List of ciphers to use. String is a colon (":") separated list
<dt><strong>-ciphersuites</strong> <em>string</em></dt>
<dd>List of cipher suites to use. String is a colon (":")
<dt><strong>-command</strong> <em>callback</em></dt>
<dd>Callback to invoke at several points during the handshake.
<dt><strong>-dhparams </strong><em>filename</em></dt>
<dd>Specify the Diffie-Hellman parameters file.</dd>
<dt><strong>-keyfile</strong> <em>filename</em></dt>
<dd>Specify the private key file. (default is
value of -certfile)</dd>
<dt><strong>-key</strong> <em>filename</em></dt>
<dd>Specify the private key to use as a DER encoded value (PKCS#1 DER)</dd>
<dt><strong>-model</strong> <em>channel</em></dt>
<dd>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>Callback to invoke when OpenSSL needs to obtain a password,
callback should return a string which represents the password
to be used. See <a href="#CALLBACK OPTIONS">CALLBACK OPTIONS</a>
<dt><strong>-request </strong><em>bool</em></dt>
<dd>Request a certificate from peer during SSL handshake.
(default is <em>true</em>)</dd>
<dt><strong>-require</strong> <em>bool</em></dt>
<dd>Require a valid certificate from peer during SSL handshake.
also be set to true. (default is <em>false</em>)</dd>
<dt><strong>-securitylevel</strong> <em>integer</em></dt>
<dd>Set security level. Must be 0 to 5. The security level affects
<dt><strong>-server</strong> <em>bool</em></dt>
<dd>Handshake as server if true, else handshake as
client. (default is <em>false</em>)</dd>
<dt><strong>-servername</strong> <em>host</em></dt>
<dd>Specify server hostname. Only available if the OpenSSL library
<dt><strong>-session_id</strong> <em>string</em></dt>
<dd>Session id to resume session.</dd>
<dt><strong>-ssl2</strong> <em>bool</em></dt>
<dd>Enable use of SSL v2. (default is <em>false</em>)</dd>
<dt><strong>-ssl3 </strong><em>bool</em></dt>
<dd>Enable use of SSL v3. (default is <em>false</em>)</dd>
<dt>-<strong>tls1</strong> <em>bool</em></dt>
<dd>Enable use of TLS v1. (default is <em>true</em>)</dd>
<dt>-<strong>tls1.1</strong> <em>bool</em></dt>
<dd>Enable use of TLS v1.1 (default is <em>true</em>)</dd>
<dt>-<strong>tls1.2</strong> <em>bool</em></dt>
<dd>Enable use of TLS v1.2 (default is <em>true</em>)</dd>
<dt>-<strong>tls1.3</strong> <em>bool</em></dt>
<dd>Enable use of TLS v1.3 (default is <em>true</em>)</dd>
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>
SSL handshake has not yet completed. If <em>-local</em> is
<dt><strong>alpn</strong> <em>protocol</em></dt>
<dd>The protocol selected after Application-Layer Protocol
<dt><strong>cipher</strong> <em>cipher</em></dt>
<dd>The current cipher in use between the client and
server channels.</dd>
<dt><strong>peername</strong> <em>name</em></dt>
<dd>The peername from the certificate.</dd>
<dt><strong>protocol</strong> <em>version</em></dt>
<dd>The protocol version used for the connection:
<dt><strong>sbits</strong> <em>n</em></dt>
<dd>The number of bits used for the session key.</dd>
<dt><strong>signatureHashAlgorithm</strong> <em>algorithm</em></dt>
<dd>The signature hash algorithm.</dd>
<dt><strong>signature_type</strong> <em>type</em></dt>
<dd>The signature type value.</dd>
<dt><strong>verification</strong> <em>result</em></dt>
<dd>Certificate verification result.</dd>
<dt><strong>ca_names</strong> <em>list</em></dt>
<dd>List of the Certificate Authorities used to create the certificate.</dd>
<dt><strong>all</strong> <em>string</em></dt>
<dd>Dump of all certificate info.</dd>
<dt><strong>version</strong> <em>value</em></dt>
<dd>The certificate version.</dd>
<dt><strong>serialNumber</strong> <em>n</em></dt>
<dd>The serial number of the certificate as hex string.</dd>
<dt><strong>signature</strong> <em>algorithm</em></dt>
<dd>Cipher algorithm used for certificate signature.</dd>
<dt><strong>issuer</strong> <em>dn</em></dt>
<dd>The distinguished name (DN) of the certificate issuer.</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 expiration date for the certificate.</dd>
<dt><strong>subject</strong> <em>dn</em></dt>
<dd>The distinguished name (DN) of the certificate subject.
<dt><strong>issuerUniqueID</strong> <em>string</em></dt>
<dd>The issuer unique id.</dd>
<dt><strong>subjectUniqueID</strong> <em>string</em></dt>
<dd>The subject unique id.</dd>
<dt><strong>num_extensions</strong> <em>n</em></dt>
<dd>Number of certificate extensions.</dd>
<dt><strong>extensions</strong> <em>list</em></dt>
<dd>List of certificate extension names.</dd>
<dt><strong>authorityKeyIdentifier</strong> <em>string</em></dt>
<dd>(AKI) Key identifier of the Issuing CA certificate that signed
<dt><strong>subjectKeyIdentifier</strong> <em>string</em></dt>
<dd>(SKI) Hash of the public key inside the certificate. Used to
<dt><strong>subjectAltName</strong> <em>list</em></dt>
<dd>List of all of the alternative domain names, sub domains,
<dt><strong>ocsp</strong> <em>list</em></dt>
<dd>List of all OCSP URLs.</dd>
<dd>The PEM encoded certificate.</dd>
<dt><strong>signatureAlgorithm</strong> <em>algorithm</em></dt>
<dd>Cipher algorithm used for certificate signature.</dd>
<dt><strong>signatureValue</strong> <em>string</em></dt>
<dd>Certificate signature as hex string.</dd>
<dt><strong>signatureDigest</strong> <em>version</em></dt>
<dd>Certificate signing digest.</dd>
<dt><strong>publicKeyAlgorithm</strong> <em>algorithm</em></dt>
<dd>Certificate signature public key algorithm.</dd>
<dt><strong>publicKey</strong> <em>string</em></dt>
<dd>Certificate signature public key as hex string.</dd>
<dt><strong>bits</strong> <em>n</em></dt>
<dd>Number of bits used for certificate signature key</dd>
<dt><strong>self_signed</strong> <em>boolean</em></dt>
<dd>Is certificate signature self signed.</dd>
<dt><strong>sha1_hash</strong> <em>hash</em></dt>
<dd>The SHA1 hash of the certificate as hex string.</dd>
<dt><strong>sha256_hash</strong> <em>hash</em></dt>
<dd>The SHA256 hash of the certificate as hex string.</dd>
result is a list of key-value pairs describing the
connected peer.</dd>
<dt><strong>state</strong> <em>state</em></dt>
<dd>State of the connection.</dd>
<dt><strong>servername</strong> <em>name</em></dt>
<dd>The name of the connected to server.</dd>
<dt><strong>protocol</strong> <em>version</em></dt>
<dd>The protocol version used for the connection:
<dt><strong>renegotiation</strong> <em>state</em></dt>
<dd>Whether protocol renegotiation is supported or not.</dd>
<dt><strong>securitylevel</strong> <em>level</em></dt>
<dd>The security level used for selection of ciphers, key size, etc.</dd>
<dt><strong>session_reused</strong> <em>boolean</em></dt>
<dd>Whether the session has been reused or not.</dd>
<dt><strong>is_server</strong> <em>boolean</em></dt>
<dd>Whether the connection configured as a server or client (false).</dd>
<dt><strong>compression</strong> <em>mode</em></dt>
<dd>Compression method.</dd>
<dt><strong>expansion</strong> <em>mode</em></dt>
<dd>Expansion method.</dd>
<dt><strong>cipher</strong> <em>cipher</em></dt>
<dd>The current cipher in use for the connection.</dd>
<dt><strong>standard_name</strong> <em>name</em></dt>
<dd>The standard RFC name of cipher.</dd>
<dt><strong>bits</strong> <em>n</em></dt>
<dd>The number of processed bits used for cipher.</dd>
<dt><strong>secret_bits</strong> <em>n</em></dt>
<dd>The number of secret bits used for cipher.</dd>
<dt><strong>min_version</strong> <em>version</em></dt>
<dd>The minimum protocol version for cipher.</dd>
<dt><strong>id</strong> <em>id</em></dt>
<dd>The OpenSSL cipher id.</dd>
<dt><strong>description</strong> <em>string</em></dt>
<dd>A text description of the cipher.</dd>
<dt><strong>alpn</strong> <em>protocol</em></dt>
<dd>The protocol selected after Application-Layer Protocol
<dt><strong>resumable</strong> <em>boolean</em></dt>
<dd>Can the session be resumed or not.</dd>
<dt><strong>start_time</strong> <em>seconds</em></dt>
<dd>Time since session started in seconds since epoch.</dd>
<dt><strong>timeout</strong> <em>seconds</em></dt>
<dd>Max duration of session in seconds before time-out.</dd>
<dt><strong>lifetime</strong> <em>seconds</em></dt>
<dd>Session ticket lifetime hint in seconds.</dd>
<dt><strong>session_id</strong> <em>string</em></dt>
<dd>Unique session id for use in resuming the session.</dd>
<dt><strong>session_ticket</strong> <em>string</em></dt>
<dd>Unique session ticket for use in resuming the session.</dd>
<dt><strong>ticket_app_data</strong> <em>string</em></dt>
<dd>Unique session ticket application data.</dd>
<dt><strong>master_key</strong> <em>binary_string</em></dt>
<dd>Unique session master key.</dd>
<dt><strong>session_cache_mode</strong> <em>mode</em></dt>
<dd>Server cache mode (client, server, or both).</dd>
where protocol must be one of <b>ssl2, ssl3, tls1, tls1.1,
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<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.
<!-- This form of callback is disabled.
<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>
message processing.
message processing. Used to select an appropriate certificate to
</dd>
<br>
<dt>
<strong>info</strong> <em>channel major minor message type</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.
<dt>For alerts, the possible values for <em>type</em> are:</dt>
<dl>
<dd><code>warning, fatal, and unknown</code>.</dd>
</dl>
</dd>
<br>
<dt>
<strong>session</strong> <em>session_id ticket lifetime</em>
</dt>
<dd>
This form of callback is invoked by the OpenSSL function
<code>SSL_CTX_sess_set_new_cb()</code>.
Where <em>session_id</em> is the current session identifier,
<em>ticket</em> is the session ticket info, and <em>lifetime</em>
is the the ticket lifetime in seconds.
names, so the right certificate can be used.
names, so the right certificate can be used. Called after hello
callback but before ALPN callback.
</dd>
<br>
certificate verification result and choose whether to continue or not.
<br>
The <em>depth</em> argument is an integer representing the
certificate chain verification results and choose whether to continue or not.
<ul>
<li>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.
<code>0</code> as the peer certificate and higher values going
up to the Certificate Authority (CA).</li>
<br>
The <em>cert</em> argument is a list of key-value pairs similar
<a href="#tls::status"><strong>tls::status</strong></a>.
<a href="#tls::status"><strong>tls::status</strong></a>.</li>
<br>
The <em>status</em> argument is an integer representing the
current validity of the certificate.
A value of <code>1</code> means the certificate is deemed valid.
A value of <code>1</code> means the certificate is deemed valid.</li>
<br>
The <em>error</em> argument supplies the message, if any, generated
by <code>X509_STORE_CTX_get_error()</code>.
<br>
</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>
|