<!DOCTYPE html>
<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Converting Applications from v1 to v2 — Cyrus SASL 2.1.27 documentation</title>
<link rel="shortcut icon" href="../_static/favicon.ico"/>
<link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
<link rel="stylesheet" href="../_static/cyrus.css" type="text/css" />
<link rel="index" title="Index"
href="../genindex.html"/>
<link rel="search" title="Search" href="../search.html"/>
<link rel="top" title="Cyrus SASL 2.1.27 documentation" href="../index.html"/>
<link rel="up" title="Developers" href="../developer.html"/>
<link rel="next" title="Application Programmer’s Guide" href="developer/programming.html"/>
<link rel="prev" title="Developers" href="../developer.html"/>
</head>
<body class="wy-body-for-nav" role="document">
<div class="pageheader">
<ul>
<li><a href="../index.html">Home</a></li>
<li><a href="http://www.cyrusimap.org">Cyrus IMAP</a></li>
<li><a href="../download.html">Download</a></li>
<li><a href="../contribute.html">Contribute</a></li>
</ul>
<div>
<a href="../index.html">
<img src="../_static/logo.gif" alt="CYRUS SASL" />
</a>
</div>
</div>
<div style="clear: both;"></div>
<div class="wy-grid-for-nav">
<nav data-toggle="wy-nav-shift" class="wy-nav-side">
<div class="wy-side-nav-search">
<a href="../index.html">
<img src="../_static/logo.gif" />
</a>
<div role="search">
<form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
<input type="text" name="q" placeholder="Search docs" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</div>
<div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
<p class="caption"><span class="caption-text">Cyrus SASL</span></p>
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../download.html">Download</a><ul>
<li class="toctree-l2"><a class="reference internal" href="../getsasl.html">Get SASL</a><ul>
<li class="toctree-l3"><a class="reference internal" href="installation.html">Installation</a><ul>
<li class="toctree-l4"><a class="reference internal" href="installation.html#quick-install-guide">Quick install guide</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#detailed-installation-guide">Detailed installation guide</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#supported-platforms">Supported platforms</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="release-notes/index.html">Release Notes</a><ul>
<li class="toctree-l3"><a class="reference internal" href="release-notes/index.html#supported-product-series">Supported Product Series</a><ul>
<li class="toctree-l4"><a class="reference internal" href="release-notes/index.html#series-2-1">Series 2.1</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="release-notes/index.html#older-versions">Older Versions</a><ul>
<li class="toctree-l4"><a class="reference internal" href="release-notes/index.html#series-2-2-0">Series 2: 2.0</a></li>
<li class="toctree-l4"><a class="reference internal" href="release-notes/index.html#series-1">Series 1</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../packager.html">Note for Packagers</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="quickstart.html">Quickstart guide</a><ul>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#features">Features</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#typical-installation">Typical Installation</a></li>
<li class="toctree-l2"><a class="reference internal" href="quickstart.html#configuration">Configuration</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="concepts.html">Concepts</a><ul>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#sasl">SASL</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#sasl-authentication-mechanisms">SASL Authentication Mechanisms</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#security-layers">Security Layers</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#channel-binding">Channel Binding</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#realms">Realms</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#protocols">Protocols</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#cyrus-sasl">Cyrus SASL</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#the-glue-library">The Glue Library</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#auxiliary-properties">Auxiliary Properties</a></li>
<li class="toctree-l2"><a class="reference internal" href="concepts.html#plugins">Plugins</a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../setup.html">Setup</a><ul>
<li class="toctree-l2"><a class="reference internal" href="installation.html">Installation</a><ul>
<li class="toctree-l3"><a class="reference internal" href="installation.html#quick-install-guide">Quick install guide</a><ul>
<li class="toctree-l4"><a class="reference internal" href="installation.html#tarball-installation">Tarball installation</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#unix-package-installation">Unix package Installation</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#configuration">Configuration</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="installation.html#detailed-installation-guide">Detailed installation guide</a><ul>
<li class="toctree-l4"><a class="reference internal" href="installation.html#requirements">Requirements</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#build-configuration">Build Configuration</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#building-and-installation">Building and Installation</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#compilation-hints">Compilation Hints</a></li>
<li class="toctree-l4"><a class="reference internal" href="installation.html#application-configuration">Application Configuration</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="installation.html#supported-platforms">Supported platforms</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="upgrading.html">Upgrading from v1 to v2</a><ul>
<li class="toctree-l3"><a class="reference internal" href="upgrading.html#backwards-compatibility">Backwards Compatibility</a></li>
<li class="toctree-l3"><a class="reference internal" href="upgrading.html#coexistence-with-saslv1">Coexistence with SASLv1</a></li>
<li class="toctree-l3"><a class="reference internal" href="upgrading.html#database-upgrades">Database Upgrades</a></li>
<li class="toctree-l3"><a class="reference internal" href="upgrading.html#errors-on-migration">Errors on migration</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="components.html">Components</a><ul>
<li class="toctree-l3"><a class="reference internal" href="components.html#the-application">The Application</a></li>
<li class="toctree-l3"><a class="reference internal" href="components.html#the-sasl-glue-layer">The SASL Glue Layer</a></li>
<li class="toctree-l3"><a class="reference internal" href="components.html#plugins">Plugins</a><ul>
<li class="toctree-l4"><a class="reference internal" href="components.html#plugins-general">Plugins: General</a></li>
<li class="toctree-l4"><a class="reference internal" href="components.html#plugins-sasl-mechanisms">Plugins: SASL Mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="components.html#plugins-auxiliary-property">Plugins: Auxiliary Property</a></li>
<li class="toctree-l4"><a class="reference internal" href="components.html#plugins-username-canonicalization">Plugins: Username Canonicalization</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="components.html#password-verification-services">Password Verification Services</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="options.html">Options</a><ul>
<li class="toctree-l3"><a class="reference internal" href="options.html#sasl-library">SASL Library</a></li>
<li class="toctree-l3"><a class="reference internal" href="options.html#auxiliary-property-plugin">Auxiliary Property Plugin</a></li>
<li class="toctree-l3"><a class="reference internal" href="options.html#gssapi">GSSAPI</a></li>
<li class="toctree-l3"><a class="reference internal" href="options.html#ldapdb">LDAPDB</a><ul>
<li class="toctree-l4"><a class="reference internal" href="options.html#notes-on-ldapdb">Notes on LDAPDB</a></li>
<li class="toctree-l4"><a class="reference internal" href="options.html#examples">Examples</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="options.html#ntlm">NTLM</a></li>
<li class="toctree-l3"><a class="reference internal" href="options.html#otp">OTP</a></li>
<li class="toctree-l3"><a class="reference internal" href="options.html#digest-md5">Digest-md5</a></li>
<li class="toctree-l3"><a class="reference internal" href="options.html#sasldb">SASLDB</a><ul>
<li class="toctree-l4"><a class="reference internal" href="options.html#notes-on-sasldb-with-lmdb">Notes on sasldb with LMDB</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="options.html#sql-plugin">SQL Plugin</a><ul>
<li class="toctree-l4"><a class="reference internal" href="options.html#notes-on-sql">Notes on SQL</a></li>
<li class="toctree-l4"><a class="reference internal" href="options.html#id2">Examples</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="options.html#srp">SRP</a></li>
<li class="toctree-l3"><a class="reference internal" href="options.html#kerberos-v4">Kerberos V4</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="advanced.html">Advanced Usage</a><ul>
<li class="toctree-l3"><a class="reference internal" href="advanced.html#notes-for-advanced-usage-of-libsasl">Notes for Advanced Usage of libsasl</a><ul>
<li class="toctree-l4"><a class="reference internal" href="advanced.html#using-cyrus-sasl-as-a-static-library">Using Cyrus SASL as a static library</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../operations.html">Operations</a><ul>
<li class="toctree-l2"><a class="reference internal" href="sysadmin.html">System Administrators</a><ul>
<li class="toctree-l3"><a class="reference internal" href="sysadmin.html#what-sasl-is">What SASL is</a><ul>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#authentication-and-authorization-identifiers">Authentication and authorization identifiers</a></li>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#realms">Realms</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="sysadmin.html#how-sasl-works">How SASL works</a><ul>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#the-plain-mechanism-sasl-checkpass-and-plaintext-passwords">The PLAIN mechanism, <code class="docutils literal"><span class="pre">sasl_checkpass()</span></code>, and plaintext passwords</a></li>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#shared-secrets-mechanisms">Shared secrets mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#kerberos-mechanisms">Kerberos mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#the-otp-mechanism">The OTP mechanism</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="sysadmin.html#auxiliary-properties">Auxiliary Properties</a></li>
<li class="toctree-l3"><a class="reference internal" href="sysadmin.html#how-to-set-configuration-options">How to set configuration options</a><ul>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#the-default-configuration-file">The default configuration file</a></li>
<li class="toctree-l4"><a class="reference internal" href="sysadmin.html#application-configuration">Application configuration</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="sysadmin.html#troubleshooting">Troubleshooting</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="manpages.html">Man pages</a><ul>
<li class="toctree-l3"><a class="reference internal" href="manpages.html#library-files">(3) Library Files</a><ul>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl.html"><strong>SASL</strong> - SASL Authentication Library</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_authorize_t.html"><strong>sasl_authorize_t</strong> - The SASL authorization callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop.html"><strong>sasl_auxprop</strong> - How to work with SASL auxiliary properties</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop_add_plugin.html"><strong>sasl_auxprop_add_plugin</strong> - add a SASL auxiliary property plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop_getctx.html"><strong>sasl_auxprop_getctx</strong> - Acquire an auxiliary property context</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_auxprop_request.html"><strong>sasl_auxprop_request</strong> - Request auxiliary properties from SASL</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_callbacks.html"><strong>sasl_callbacks</strong> - How to work with SASL callbacks</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_canon_user_t.html"><strong>sasl_canon_user_t</strong> - Application-supplied user canonicalization function</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_canonuser_add_plugin.html"><strong>sasl_canonuser_add_plugin</strong> - add a SASL user canonicalization plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_chalprompt_t.html"><strong>sasl_chalprompt_t</strong> - Realm acquisition callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_checkapop.html"><strong>sasl_checkapop</strong> - Check an APOP challenge/response</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_checkpass.html"><strong>sasl_checkpass</strong> - Check a plaintext password</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_add_plugin.html"><strong>sasl_client_add_plugin</strong> - add a SASL client plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_done.html"><strong>sasl_client_done</strong> - Cleanup function</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_init.html"><strong>sasl_client_init</strong> - SASL client authentication initialization</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_new.html"><strong>sasl_client_new</strong> - Create a new client authentication object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_plug_init_t.html"><strong>sasl_client_plug_init_t</strong> - client plug‐in entry point</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_start.html"><strong>sasl_client_start</strong> - Begin an authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_client_step.html"><strong>sasl_client_step</strong> - Perform a step in the authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_decode.html"><strong>sasl_decode</strong> - Decode data received</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_decode64.html"><strong>sasl_decode64</strong> - Decode base64 string</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_dispose.html"><strong>sasl_dispose</strong> - Dispose of a SASL connection object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_done.html"><strong>sasl_done</strong> - Dispose of a SASL connection object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_encode.html"><strong>sasl_encode</strong> - Encode data for transport to authenticated host</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_encode64.html"><strong>sasl_encode64</strong> - Encode base64 string</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_encodev.html"><strong>sasl_encodev</strong> - Encode data for transport to authenticated host</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_erasebuffer.html"><strong>sasl_erasebuffer</strong> - erase buffer</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_errdetail.html"><strong>sasl_errdetail</strong> - Retrieve detailed information about an error</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_errors.html"><strong>sasl_errors</strong> - SASL error codes</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_errstring.html"><strong>sasl_errstring</strong> - Translate a SASL return code to a human-readable form</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getcallback_t.html"><strong>sasl_getcallback_t</strong> - callback function to lookup a sasl_callback_t for a connection</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getconfpath_t.html"><strong>sasl_getconfpath_t</strong> - The SASL callback to indicate location of the config files</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getopt_t.html"><strong>sasl_getopt_t</strong> - The SASL get option callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getpath_t.html"><strong>sasl_getpath_t</strong> - The SASL callback to indicate location of the mechanism drivers</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getprop.html"><strong>sasl_getprop</strong> - Get a SASL property</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getrealm_t.html"><strong>sasl_getrealm_t</strong> - Realm Acquisition Callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getsecret_t.html"><strong>sasl_getsecret_t</strong> - The SASL callback for secrets (passwords)</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_getsimple_t.html"><strong>sasl_getsimple_t</strong> - The SASL callback for username/authname/realm</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_global_listmech.html"><strong>sasl_global_listmech</strong> - Retrieve a list of the supported SASL mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_idle.html"><strong>sasl_idle</strong> - Perform precalculations during an idle period</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_listmech.html"><strong>sasl_listmech</strong> - Retrieve a list of the supported SASL mechanisms</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_log_t.html"><strong>sasl_log_t</strong> - The SASL logging callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_add_plugin.html"><strong>sasl_server_add_plugin</strong> - add a SASL server plugin</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_done.html"><strong>sasl_server_done</strong> - Cleanup function</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_init.html"><strong>sasl_server_init</strong> - SASL server authentication initialization</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_new.html"><strong>sasl_server_new</strong> - Create a new server authentication object</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_plug_init_t.html"><strong>sasl_server_plug_init_t</strong> - server plug‐in entry point</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_start.html"><strong>sasl_server_start</strong> - Begin an authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_step.html"><strong>sasl_server_step</strong> - Perform a step in the authentication negotiation</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_userdb_checkpass_t.html"><strong>sasl_server_userdb_checkpass_t</strong> - Plaintext Password Verification Callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_server_userdb_setpass_t.html"><strong>sasl_server_userdb_setpass_t</strong> - UserDB Plaintext Password Setting Callback</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_set_alloc.html"><strong>sasl_set_alloc</strong> - set the memory allocation functions used by the SASL library</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_set_mutex.html"><strong>sasl_set_mutex</strong> - set the mutex lock functions used by the SASL library</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_seterror.html"><strong>sasl_seterror</strong> - set the error string</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_setpass.html"><strong>sasl_setpass</strong> - Check a plaintext password</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_setprop.html"><strong>sasl_setprop</strong> - Set a SASL property</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_user_exists.html"><strong>sasl_user_exists</strong> - Check if a user exists on server</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_usererr.html"><strong>sasl_usererr</strong> - Remove information leak about accounts from sasl error codes</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_utf8verify.html"><strong>sasl_utf8verify</strong> - Verify a string is valid utf8</a></li>
<li class="toctree-l4"><a class="reference internal" href="reference/manpages/library/sasl_verifyfile_t.html"><strong>sasl_verifyfile_t</strong> - The SASL file verification</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="auxiliary_properties.html">Auxiliary Properties</a><ul>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#auxiliary-properties-and-the-glue-layer">Auxiliary Properties and the Glue Layer</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#passwords-and-other-data">Passwords and other Data</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#sasldb">sasldb</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#ldapdb">ldapdb</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#sql">sql</a></li>
<li class="toctree-l3"><a class="reference internal" href="auxiliary_properties.html#user-canonicalization">User Canonicalization</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="authentication_mechanisms.html">Authentication Mechanisms</a><ul>
<li class="toctree-l3"><a class="reference internal" href="authentication_mechanisms.html#mechanisms">Mechanisms</a><ul>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#anonymous">ANONYMOUS</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#cram-md5">CRAM-MD5</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#digest-md5">DIGEST-MD5</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#external">EXTERNAL</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#g2">G2</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#gssapi">GSSAPI</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#gss-spegno">GSS-SPEGNO</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#kerberos-v4">KERBEROS_V4</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#login">LOGIN</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#ntlm">NTLM</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#otp">OTP</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#passdss">PASSDSS</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#plain">PLAIN</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#scram">SCRAM</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#srp">SRP</a></li>
<li class="toctree-l4"><a class="reference internal" href="authentication_mechanisms.html#non-sasl-authentication">Non-SASL Authentication</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="authentication_mechanisms.html#summary">Summary</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="pwcheck.html">Pwcheck</a><ul>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#auxprop">Auxprop</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#auxprop-hashed">Auxprop-hashed</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#saslauthd">Saslauthd</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#authdaemon">Authdaemon</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#alwaystrue">Alwaystrue</a></li>
<li class="toctree-l3"><a class="reference internal" href="pwcheck.html#auto-transition">Auto Transition</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="faq.html">Frequently Asked Questions</a><ul>
<li class="toctree-l3"><a class="reference internal" href="faqs/authorize-vs-authenticate.html">What is the difference between an Authorization ID and a Authentication ID?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/crammd5-digestmd5.html">Why do CRAM-MD5 and DIGEST-MD5 not work with CyrusSaslauthd?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/openldap-sasl-gssapi.html">How do I configure OpenLDAP +SASL+GSSAPI?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/plaintextpasswords.html">Why does CyrusSasl store plaintext passwords in its databases?</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/rfcs.html">RFCs and drafts</a></li>
<li class="toctree-l3"><a class="reference internal" href="faqs/upgrade-saslv2.html">Why am I having a problem running dbconverter-2 to upgrade from SASLv1 to SASLv2?</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="resources.html">Other Documentation & Resources</a></li>
</ul>
</li>
<li class="toctree-l1 current"><a class="reference internal" href="../developer.html">Developers</a><ul class="current">
<li class="toctree-l2 current"><a class="current reference internal" href="#">Converting Applications from v1 to v2</a><ul>
<li class="toctree-l3"><a class="reference internal" href="#tips-for-both-clients-and-servers">Tips for both clients and servers</a></li>
<li class="toctree-l3"><a class="reference internal" href="#tips-for-clients">Tips for clients</a></li>
<li class="toctree-l3"><a class="reference internal" href="#tips-for-servers">Tips for Servers</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="developer/programming.html">Application Programmer’s Guide</a><ul>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#introduction">Introduction</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#about-this-guide">About this Guide</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#what-is-sasl">What is SASL?</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#background">Background</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#how-did-the-world-work-before-sasl">How did the world work before SASL?</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#sasl-to-the-rescue">SASL to the rescue!</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#briefly">Briefly</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#what-is-the-cyrus-sasl-library-good-for">What is the Cyrus SASL library good for?</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#what-does-the-cyrus-sasl-library-do">What does the Cyrus SASL library do?</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#what-doesn-t-the-cyrus-sasl-library-do">What doesn’t the Cyrus SASL library do?</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#client-only-section">Client-only Section</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#a-typical-interaction-from-the-client-s-perspective">A typical interaction from the client’s perspective</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#how-does-this-look-in-code">How does this look in code</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#server-only-section">Server-only Section</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#a-typical-interaction-from-the-server-s-perspective">A typical interaction from the server’s perspective</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#id1">How does this look in code?</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#common-section">Common Section</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#callbacks-and-interactions">Callbacks and Interactions</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#security-layers">Security layers</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#example-applications-that-come-with-the-cyrus-sasl-library">Example applications that come with the Cyrus SASL library</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#sample-client-and-sample-server"><cite>sample-client</cite> and <cite>sample-server</cite></a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#cyrus-imapd-v2-1-0-or-later">Cyrus imapd v2.1.0 or later</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#imtest-from-cyrus-2-1-0-or-later"><cite>imtest</cite>, from Cyrus 2.1.0 or later</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/programming.html#miscellaneous-information">Miscellaneous Information</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#empty-exchanges">Empty exchanges</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/programming.html#idle">Idle</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="developer/plugprog.html">Plugin Programmer’s Guide</a><ul>
<li class="toctree-l3"><a class="reference internal" href="developer/plugprog.html#introduction">Introduction</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#about-this-guide">About this Guide</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#what-is-sasl">What is SASL?</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/plugprog.html#common-section">Common Section</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#overview-of-plugin-programming">Overview of Plugin Programming</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#use-of-sasl-utils-t">Use of sasl_utils_t</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#error-reporting">Error Reporting</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#memory-allocation">Memory Allocation</a></li>
<li class="toctree-l4"><a class="reference internal" href="developer/plugprog.html#client-send-first-server-send-last">Client Send First / Server Send Last</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/plugprog.html#client-plugins">Client Plugins</a></li>
<li class="toctree-l3"><a class="reference internal" href="developer/plugprog.html#server-plugins">Server Plugins</a></li>
<li class="toctree-l3"><a class="reference internal" href="developer/plugprog.html#user-canonicalization-canon-user-plugins">User Canonicalization (canon_user) Plugins</a></li>
<li class="toctree-l3"><a class="reference internal" href="developer/plugprog.html#auxiliary-property-auxprop-plugins">Auxiliary Property (auxprop) Plugins</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="developer/testing.html">Testing</a><ul>
<li class="toctree-l3"><a class="reference internal" href="developer/testing.html#testing-the-cmu-sasl-library-with-the-included-sample-applications">Testing the CMU SASL Library with the included sample applications</a><ul>
<li class="toctree-l4"><a class="reference internal" href="developer/testing.html#example">Example</a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="developer/testing.html#running-the-testsuite-application">Running the Testsuite application</a></li>
</ul>
</li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../support.html">Support/Community</a></li>
</ul>
<p class="caption"><span class="caption-text">IMAP</span></p>
<ul>
<li class="toctree-l1"><a class="reference external" href="http://www.cyrusimap.org">Cyrus IMAP</a></li>
</ul>
</div>
</nav>
<section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
<nav class="wy-nav-top" role="navigation" aria-label="top navigation">
<i data-toggle="wy-nav-top" class="fa fa-bars"></i>
<a href="../index.html">Cyrus SASL</a>
</nav>
<div class="wy-nav-content">
<div class="rst-content">
<div role="navigation" aria-label="breadcrumbs navigation">
<ul class="wy-breadcrumbs">
<li><a href="../index.html">Docs v2.1.27</a> »</li>
<li><a href="../developer.html">Developers</a> »</li>
<li>Converting Applications from v1 to v2</li>
<li class="wy-breadcrumbs-aside">
<a href="https://github.com/cyrusimap/cyrus-sasl/blob/master/docsrc/sasl/appconvert.rst" class="fa fa-github"> Edit on GitHub</a>
</li>
</ul>
<hr/>
</div>
<div role="main" class="document">
<div class="section" id="converting-applications-from-v1-to-v2">
<span id="appconvert"></span><h1>Converting Applications from v1 to v2<a class="headerlink" href="#converting-applications-from-v1-to-v2" title="Permalink to this headline">¶</a></h1>
<p>This documents our conversion experience with Cyrus IMAPd, an application
that uses almost every part of SASL, so it should give a good idea what caveats
need to be looked for when one is converting an application which uses SASLv1
to use SASLv2.</p>
<p>The major changes in the SASLv2 API have to do with memory management.
That is, the rule “If you allocate it, you free it” is now enforced. That
means that if the application allocates something (for example, an interaction
or callback response), it must free it. Likewise, the application does
NOT free anything handed to it by the SASL library, such as responses
given by sasl_client_step or sasl_decode.</p>
<div class="section" id="tips-for-both-clients-and-servers">
<h2>Tips for both clients and servers<a class="headerlink" href="#tips-for-both-clients-and-servers" title="Permalink to this headline">¶</a></h2>
<ul class="simple">
<li>Change configure scripts to search for libsasl2 and include files
prefixed with sasl/ (sasl/sasl.h, sasl/saslutil.h, etc)</li>
<li><code class="docutils literal"><span class="pre">sasl_decode64</span></code> now takes an
additional parameter that is the size of the buffer it is passed.</li>
<li>External authentication properties are no longer handled by a
<code class="docutils literal"><span class="pre">sasl_external_properties_t</span></code>. Instead you make 2 separate calls to
<code class="docutils literal"><span class="pre">sasl_setprop.</span></code><ul>
<li>One with SASL_SSF_EXTERNAL to tell the SASL library what SSF is being
provided by the external layer.</li>
<li>The other sets SASL_AUTH_EXTERNAL to indicate
the authentication name.</li>
</ul>
</li>
<li><code class="docutils literal"><span class="pre">sasl_getprop</span></code> now returns its value in a <code class="docutils literal"><span class="pre">const</span> <span class="pre">void</span> <span class="pre">\*\*</span></code></li>
<li><code class="docutils literal"><span class="pre">sasl_encode</span></code> and <code class="docutils literal"><span class="pre">sasl_decode</span></code> now return a constant output buffer, which
you do not need to free (it is only valid until the next call for this sasl_
conn_t, however)</li>
<li>The SASL_IP_REMOTE and SASL_IP_LOCAL properties are now SASL_IPLOCALPORT
and SASL_IPREMOTEPORT and take strings instead of sockaddrs. These strings
may also be passed to the sasl_[client/server]_new functions. They
are in one of the following formats:<ul>
<li>a.b.c.d;p (IPv4, with port)</li>
<li>e:f:g:h:i:j:k:l;p (IPv6, with port)</li>
<li>e:j:k:l;p (IPv6, abbreviated zero fields, with port)</li>
</ul>
</li>
<li>Error handling and reporting is different. All of the functions that used
to return a “reply” string no longer do. Now you should (always) check
<code class="docutils literal"><span class="pre">sasl_errdetail</span></code>. Callbacks MUST likewise use <code class="docutils literal"><span class="pre">sasl_seterror</span></code>
instead of setting their (now nonexistent) reply parameter.</li>
<li>Be very careful about your handling of maxoutbuf. If you claim that
you can only read 4096 bytes at a time, be sure to only pass at most
that much at a time to the SASL library!</li>
</ul>
</div>
<div class="section" id="tips-for-clients">
<h2>Tips for clients<a class="headerlink" href="#tips-for-clients" title="Permalink to this headline">¶</a></h2>
<ul class="simple">
<li>In <code class="docutils literal"><span class="pre">sasl_client_new</span></code> you can now pass ip address strings as
parameters 3 and 4 instead of calling setprop later on sockaddr’s.
This is preferred but not required (not passing them by either method disables
mechs which require IP address information). You might find the iptostring()
function in utils/smtptest.c to be useful for this. If the protocol supports
the server sending data on success you should pass SASL_SUCCESS_DATA as a
flag.</li>
<li><code class="docutils literal"><span class="pre">sasl_client_start</span></code> loses the 3rd “secret” parameter.
Also, NULL clientout and clientoutlen indicates that the protocol does not
support client-send-first. A NULL return value indicates that there is no
first client send. (as opposed to an empty string, which indicates that
the first client send is the empty string).</li>
<li>Both <code class="docutils literal"><span class="pre">sasl_client_start</span></code> and <code class="docutils literal"><span class="pre">sasl_client_step</span></code> now take
const clientout parameters that you are no longer responsible for freeing
(it is only valid until the next call for this <code class="docutils literal"><span class="pre">sasl_conn_t</span></code>, however)</li>
<li>When interactions and callbacks happen you are responsible for freeing
the results.</li>
</ul>
</div>
<div class="section" id="tips-for-servers">
<h2>Tips for Servers<a class="headerlink" href="#tips-for-servers" title="Permalink to this headline">¶</a></h2>
<ul class="simple">
<li>SASL_SECURITY_LAYER flag no longer exists, whether or not to use a
security layer is solely determined by the security properties information,
namely, the <code class="docutils literal"><span class="pre">maxbufsize</span></code> member of the
<code class="docutils literal"><span class="pre">sasl_security_properties_t</span></code></li>
<li><code class="docutils literal"><span class="pre">sasl_server_new</span></code> now can take ip address strings.</li>
<li><code class="docutils literal"><span class="pre">sasl_checkpass</span></code> no longer has a “reply” parameter. There
are also considerably fewer possible values for the pwcheck_method
option (now only auxprop, saslauthd, authdaemond, and pwcheck).</li>
<li><code class="docutils literal"><span class="pre">sasl_server_start</span></code> / <code class="docutils literal"><span class="pre">sasl_server_step</span></code> have same
output parameter deal as their equivalents on the client side</li>
<li><code class="docutils literal"><span class="pre">sasl_listmech</span></code> has a constant output parameter</li>
<li>If you used to canonicalize the username in a SASL_CB_PROXY_POLICY
callback you should now separate the functionality of authorization and
canonicalization. That is, only do authorization in SASL_CB_PROXY_POLICY,
and do canonicalization in the SASL_CB_CANON_USER callback</li>
</ul>
</div>
</div>
</div>
<footer>
<div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
<a href="developer/programming.html" class="btn btn-neutral float-right" title="Application Programmer’s Guide" accesskey="n">Next <span class="fa fa-arrow-circle-right"></span></a>
<a href="../developer.html" class="btn btn-neutral" title="Developers" accesskey="p"><span class="fa fa-arrow-circle-left"></span> Previous</a>
</div>
<hr/>
<div role="contentinfo">
<p>
© Copyright 1993-2016, The Cyrus Team.
</p>
</div>
Built with <a href="http://sphinx-doc.org/">Sphinx</a> 1.6.6 using a modified <a href="https://readthedocs.org">Read the Docs</a> <a href="https://github.com/snide/sphinx_rtd_theme">theme</a>.
</footer>
</div>
</div>
</section>
</div>
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT:'../',
VERSION:'2.1.27',
COLLAPSE_INDEX:false,
FILE_SUFFIX:'.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js"></script>
<script type="text/javascript" src="../_static/js/theme.js"></script>
<script type="text/javascript">
<!-- jQuery(function () {
SphinxRtdTheme.StickyNav.enable();
}); -->
</script>
</body>
</html>
