426 lines
12 KiB
HTML
426 lines
12 KiB
HTML
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>SSL_Init()--Initialize the Current Job for SSL</title>
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<body>
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<a name="Top_Of_Page"></a>
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<script type="text/javascript" language="Javascript" src="../rzahg/synch.js">
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</script>
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<h2>SSL_Init()--Initialize the Current Job for SSL</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax<br>
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<pre>
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#include <qsossl.h>
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int SSL_Init(SSLInit* <em>init</em>)
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</pre>
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<br>
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Service Program Name: QSOSSLSR <br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Yes<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong><em>SSL_Init()</em></strong> function is used to establish the
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SSL security information to be used for all SSL sessions for the current job.
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The <em>SSL_Init()</em> API establishes the certificate and the associated
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public and private key information for use by the SSL handshake protocol
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processing when acting as a server or when acting as a client. The
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certificate and key information is needed by an application that is acting as a
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client in the situations where the client is connecting to a server which has
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enabled and requires client authentication.</p>
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<br>
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<h3>Parameters</h3>
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<dl>
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<dt>SSLInit * <strong><em>init</em></strong> (input)</dt>
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<dd>The pointer to an <strong><em>SSLInit</em></strong> structure.
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<strong><em>SSLInit</em></strong> is a typedef for a buffer of type struct
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<strong><em>SSLInitStr</em></strong>. In <strong><qsossl.h></strong>, struct
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<strong><em>SSLInitStr</em></strong> is defined as the following:</dd>
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<dd><br>
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<br>
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<table border cellpadding="5">
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<tr>
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<td>
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<pre>
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struct SSLInitStr { /* SSLInitStr */
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char* keyringFileName; /* Key ring file name */
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char* keyringPassword; /* Key ring file password */
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unsigned short int* cipherSuiteList; /* List of cipher suites */
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unsigned int cipherSuiteListLen; /* number of entries in
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the cipher suites list */
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};
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</pre>
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</td>
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</tr>
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</table>
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</dd>
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</dl>
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<p>The fields within the <strong><em>SSLInit</em></strong> structure as pointed
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to by <em>init</em> are defined as follows:</p>
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<dl>
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<dt>char *<strong><em>keyringFileName</em></strong> (input)</dt>
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<dd>A pointer to a null-terminated character string, identifying the path to
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the key database file to be used for this job's SSL processing. The path must
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be a fully qualified integrated file system file name.
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<p>This parameter is assumed to be represented in the CCSID (coded character
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set identifier) currently in effect for the job. If the CCSID of the job is
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65535, this parameter is assumed to be represented in the default CCSID of the
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job.</p>
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<p>See <a href=
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"sslinitu.htm">QlgSSL_Init()--Initialize the Current Job for SSL (using
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NLS-enabled path name)</a> for a description of supplying the
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<strong><em>keyringFileName</em></strong> in any CCSID.</p>
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</dd>
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<dt>char *<strong><em>keyringPassword</em></strong> (input)</dt>
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<dd>A pointer to a null-terminated character string, identifying the password
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for the key database file named in the <em>keyringFileName</em> field.
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<p>If this parameter's value is equal to NULL, then the <em>SSL_Init()</em>
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support will attempt to extract the key database password that has been
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securely stored on the system.</p>
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<p>This parameter is assumed to be represented in the CCSID (coded character
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set identifier) currently in effect for the job. If the CCSID of the job is
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65535, this parameter is assumed to be represented in the default CCSID of the
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job.</p>
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</dd>
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<dt>unsigned short int* <strong><em>cipherSuiteList</em></strong>
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(input)</dt>
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<dd>A pointer to the cipher specification list to be used during the SSL
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handshake protocol for this job. This list is a string of concatenated cipher
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specification values. A cipher specification value is an unsigned short
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integer. Any value provided will override any values provided by a previous
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<em>SSL_Init()</em> API or <em>SSL_Init_Application()</em> API or the system
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default cipher specification list if the previous <em>SSL_Init()</em> API or
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<em>SSL_Init_Application()</em> API did not provide a cipher specification
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list. A value of NULL for this parameter indicates one of the following:<br>
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<br>
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<ul>
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<li>Use the cipher specification list provided by a previous
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<em>SSL_Init()</em> API or <em>SSL_Init_Application()</em> API</li>
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<li>Use the system default cipher specification list if a previous
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<em>SSL_Init()</em> API or <em>SSL_Init_Application()</em> API was not
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done</li>
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</ul>
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<p>The caller specifies the preferred order of the cipher specifications. The
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cipher specification values, shown here not in preferred or strength order, are
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defined in <strong><qsossl.h></strong> as the following:</p>
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<pre>
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TLS_RSA_WITH_NULL_MD5 0x0001
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TLS_RSA_WITH_NULL_SHA 0x0002
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TLS_RSA_EXPORT_WITH_RC4_40_MD5 0x0003
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TLS_RSA_WITH_RC4_128_MD5 0x0004
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TLS_RSA_WITH_RC4_128_SHA 0x0005
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TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 0x0006
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TLS_RSA_WITH_DES_CBC_SHA 0x0009
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TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x000A
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TLS_RSA_WITH_AES_128_CBC_SHA 0x002F
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TLS_RSA_WITH_AES_256_CBC_SHA 0x0035
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TLS_RSA_WITH_RC2_CBC_128_MD5 0xFF01
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TLS_RSA_WITH_DES_CBC_MD5 0xFF02
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TLS_RSA_WITH_3DES_EDE_CBC_MD5 0xFF03
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</pre>
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<p><strong>Notes:</strong></p>
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<ol>
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<li>The SSL_RSA_EXPORT_WITH_DES40_CBC_SHA cipher is not supported by
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i5/OS.<br>
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<br>
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</li>
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<li>
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<img src="delta.gif" alt="Start of change">
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The default cipher suite list in preference order is as follows:
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<img src="deltaend.gif" alt="End of change">
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<br>
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<br>
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<pre>
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TLS_RSA_WITH_RC4_128_MD5
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TLS_RSA_WITH_RC4_128_SHA
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TLS_RSA_WITH_AES_128_CBC_SHA
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TLS_RSA_WITH_AES_256_CBC_SHA
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TLS_RSA_WITH_3DES_EDE_CBC_SHA
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TLS_RSA_WITH_DES_CBC_SHA
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TLS_RSA_WITH_DES_CBC_MD5
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TLS_RSA_WITH_3DES_EDE_CBC_MD5
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TLS_RSA_WITH_RC2_CBC_128_MD5
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TLS_RSA_EXPORT_WITH_RC4_40_MD5
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TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5
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</pre>
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</li>
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</ol>
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<br>
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</dd>
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<dt>unsigned int <strong><em>cipherSuiteListLen</em></strong>
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(input)</dt>
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<dd>The number of cipher suite entries specified in the list pointed to by the
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<strong><em>cipherSuiteList</em></strong> parameter.</dd>
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</dl>
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<br>
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<h3>Authorities</h3>
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<p>Authorization of *R (allow access to the object) to the key database file
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and its associated files is required.</p>
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<br>
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<h3>Return Value</h3>
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<p>The <em>SSL_Init()</em> API returns an integer. Possible values are:</p>
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<dl>
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<dt><em>[0]</em> </dt>
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<dd>
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<p>Successful return</p>
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</dd>
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<dt><em>[SSL_ERROR_BAD_CIPHER_SUITE]</em> </dt>
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<dd>
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<p>A cipher suite that is not valid was specified.</p>
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</dd>
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<dt><em>[SSL_ERROR_IO]</em> </dt>
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<dd>
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<p>An error occurred in SSL processing; check the <em>errno</em> value.</p>
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</dd>
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<dt><em>[SSL_ERROR_KEYPASSWORD_EXPIRED]</em> </dt>
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<dd>
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<p>The specified key ring password has expired.</p>
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</dd>
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<dt><em>[SSL_ERROR_NO_KEYRING]</em> </dt>
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<dd>
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<p>No key ring file was specified.</p>
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</dd>
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<dt><em>[SSL_ERROR_SSL_NOT_AVAILABLE]</em> </dt>
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<dd>
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<p>SSL is not available for use.</p>
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</dd>
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<dt><em>[SSL_ERROR_UNKNOWN]</em> </dt>
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<dd>
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<p>An unknown or unexpected error occurred during SSL processing.</p>
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</dd>
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</dl>
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<br>
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<br>
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<h3>Error Conditions</h3>
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<p>When the <em>SSL_Init()</em> API fails with return code [SSL_ERROR_IO],
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<em>errno</em> can be set to:</p>
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<dl>
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<dt><em>[EINVAL]</em> </dt>
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<dd>
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<p>Parameter not valid.</p>
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</dd>
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<dt><em>[EACCES]</em> </dt>
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<dd>
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<p>Permission denied.</p>
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<p>This error code indicates one of the following:</p>
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<ul>
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<li>The <em>keyringFileName</em> field contains a file name to which the user
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is not authorized.</li>
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<li>The <em>keyringPassword</em> value is not valid for the specified
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<em>keyringFileName</em>.</li>
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</ul><br>
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</dd>
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<dt><em>[EBADF]</em> </dt>
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<dd>
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<p>Descriptor not valid.</p>
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<p>This error code indicates one of the following:</p>
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<ul>
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<li>The <em>keyringFileName</em> value does not specify a valid key ring file
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name.</li>
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</ul><br>
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</dd>
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<dt><em>[EFAULT]</em> </dt>
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<dd>
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<p>Bad address.</p>
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<p>The system detected an address that was not valid while attempting to access
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the <em>init</em> parameter or one of the address fields in the <em>init</em>
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parameter.</p>
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</dd>
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<dt><em>[EUNATCH]</em> </dt>
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<dd>
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<p>The protocol required to support the specified address family is not
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available at this time.<br>
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<br>
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</p>
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</dd>
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<dt><em>[EUNKNOWN]</em> </dt>
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<dd>
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<p>Unknown system state.</p>
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</dd>
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</dl>
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<br>
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<br>
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<h3>Error Messages</h3>
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<table width="100%" cellpadding="5">
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<tr>
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<th align="left" valign="top">Message ID</th>
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<th align="left" valign="top">Error Message Text</th>
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</tr>
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<tr>
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<td align="left" valign="top">CPE3418 E</td>
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<td align="left" valign="top">Possible APAR condition or hardware failure.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPF9872 E</td>
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<td align="left" valign="top">Program or service program &1 in library
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&2 ended. Reason code &3.</td>
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</tr>
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<tr>
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<td align="left" valign="top">CPFA081 E</td>
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<td align="left" valign="top">Unable to set return value or error code.</td>
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</tr>
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</table>
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<br>
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<br>
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<h3>Usage Notes</h3>
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<ol>
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<li>A successful
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<em>SSL_Init()</em>, <em>QlgSSL_Init (using NLS-enabled path name)</em>, or an
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<em>SSL_Init_Application()</em> API must be used to enable a job for SSL
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processing before attempting to use any other SSL API.<br>
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<br>
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</li>
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<li>If multiple <em>SSL_Init_Application ()</em>, <em>QlgSSL_Init</em>, or
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<em>SSL_Init()</em> APIs are performed in a job, then only the values
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associated with the last <em>SSL_Init_Application()</em>, <em>QlgSSL_Init</em>,
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or or <em>SSL_Init()</em> performed are used.<br>
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<br>
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</li>
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<li>If the <em>keyringPassword</em> parameter pointer value is equal to NULL,
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then <em>SSL_Init()</em> will attempt to extract the password value as stored
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on the system with the <em>keyringFileName</em> parameter's value. The
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existence of the securely stored key database password is based on a
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configuration selection made during the creation of the key database file.</li>
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</ol>
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<br>
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<h3>Related Information</h3>
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<ul>
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<li><a href= "sslinitu.htm">QlgSSL_Init()</a>--Initialize the Current Job for SSL (using
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NLS-enabled path name)<br><br></li>
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<li><a href="sslcreat.htm">SSL_Create()</a>--Enable SSL Support for the Specified
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Socket Descriptor<br><br></li>
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<li><a href="ssldest.htm">SSL_Destroy(</a>)--End SSL Support for the Specified SSL
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Session<br><br></li>
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<li><a href="sslhands.htm">SSL_Handshake()</a>--Initiate the SSL Handshake
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Protocol<br><br></li>
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<li><a href=
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"sslinita.htm">SSL_Init_Application()</a>--Initialize the Current Job for SSL
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Processing Based on the Application Identifier<br><br></li>
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<li><a href="sslread.htm">SSL_Read()</a>--Receive Data from an SSL-Enabled Socket
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Descriptor<br><br></li>
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<li><a href="sslwrite.htm">SSL_Write()</a>--Write Data to an SSL-Enabled Socket
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Descriptor</li>
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</ul>
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<br>
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<hr>
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API introduced: V4R3
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a> </td>
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