version 1.9, 2000/01/16 00:29:15
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version 1.58.2.4, 2006/01/03 22:16:09
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/* $OpenLDAP: pkg/ldap/libraries/libldap/sasl.c,v 1.8 2000/01/08 17:42:18 kdz Exp $ */ |
/* $OpenLDAP: pkg/ldap/libraries/libldap/sasl.c,v 1.58.2.3 2005/11/14 18:06:06 kurt Exp $ */ |
/* |
/* This work is part of OpenLDAP Software <http://www.openldap.org/>. |
* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved. |
* |
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file |
* Copyright 1998-2006 The OpenLDAP Foundation. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted only as authorized by the OpenLDAP |
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* Public License. |
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* |
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* A copy of this license is available in the file LICENSE in the |
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* top-level directory of the distribution or, alternatively, at |
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* <http://www.OpenLDAP.org/license.html>. |
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*/ |
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/* Portions Copyright (C) The Internet Society (1997) |
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* ASN.1 fragments are from RFC 2251; see RFC for full legal notices. |
*/ |
*/ |
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/* |
/* |
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Line 42
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#include <stdio.h> |
#include <stdio.h> |
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#include <ac/socket.h> |
#include <ac/socket.h> |
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#include <ac/stdlib.h> |
#include <ac/string.h> |
#include <ac/string.h> |
#include <ac/time.h> |
#include <ac/time.h> |
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#include <ac/errno.h> |
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#include "ldap-int.h" |
#include "ldap-int.h" |
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/* |
/* |
* ldap_sasl_bind - bind to the ldap server (and X.500). The dn, mechanism, and |
* ldap_sasl_bind - bind to the ldap server (and X.500). |
* credentials of the entry to which to bind are supplied. The message id |
* The dn (usually NULL), mechanism, and credentials are provided. |
* of the request initiated is provided upon successful (LDAP_SUCCESS) return. |
* The message id of the request initiated is provided upon successful |
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* (LDAP_SUCCESS) return. |
* |
* |
* Example: |
* Example: |
* ldap_sasl_bind( ld, "cn=manager, o=university of michigan, c=us", |
* ldap_sasl_bind( ld, NULL, "mechanism", |
* "mechanism", "secret", NULL, NULL, &msgid ) |
* cred, NULL, NULL, &msgid ) |
*/ |
*/ |
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int |
int |
Line 58 ldap_sasl_bind(
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Line 72 ldap_sasl_bind(
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{ |
{ |
BerElement *ber; |
BerElement *ber; |
int rc; |
int rc; |
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ber_int_t id; |
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Debug( LDAP_DEBUG_TRACE, "ldap_sasl_bind\n", 0, 0, 0 ); |
Debug( LDAP_DEBUG_TRACE, "ldap_sasl_bind\n", 0, 0, 0 ); |
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Line 65 ldap_sasl_bind(
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Line 80 ldap_sasl_bind(
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assert( LDAP_VALID( ld ) ); |
assert( LDAP_VALID( ld ) ); |
assert( msgidp != NULL ); |
assert( msgidp != NULL ); |
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if( msgidp == NULL ) { |
/* check client controls */ |
ld->ld_errno = LDAP_PARAM_ERROR; |
rc = ldap_int_client_controls( ld, cctrls ); |
return ld->ld_errno; |
if( rc != LDAP_SUCCESS ) return rc; |
} |
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if( mechanism == LDAP_SASL_SIMPLE ) { |
if( mechanism == LDAP_SASL_SIMPLE ) { |
if( dn == NULL && cred != NULL ) { |
if( dn == NULL && cred != NULL && cred->bv_len ) { |
/* use default binddn */ |
/* use default binddn */ |
dn = ld->ld_defbinddn; |
dn = ld->ld_defbinddn; |
} |
} |
Line 91 ldap_sasl_bind(
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Line 105 ldap_sasl_bind(
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return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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assert( BER_VALID( ber ) ); |
assert( LBER_VALID( ber ) ); |
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LDAP_NEXT_MSGID( ld, id ); |
if( mechanism == LDAP_SASL_SIMPLE ) { |
if( mechanism == LDAP_SASL_SIMPLE ) { |
/* simple bind */ |
/* simple bind */ |
rc = ber_printf( ber, "{it{istO}" /*}*/, |
rc = ber_printf( ber, "{it{istON}" /*}*/, |
++ld->ld_msgid, LDAP_REQ_BIND, |
id, LDAP_REQ_BIND, |
ld->ld_version, dn, LDAP_AUTH_SIMPLE, |
ld->ld_version, dn, LDAP_AUTH_SIMPLE, |
cred ); |
cred ); |
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} else if ( cred == NULL ) { |
} else if ( cred == NULL || cred->bv_val == NULL ) { |
/* SASL bind w/o creditials */ |
/* SASL bind w/o credentials */ |
rc = ber_printf( ber, "{it{ist{s}}" /*}*/, |
rc = ber_printf( ber, "{it{ist{sN}N}" /*}*/, |
++ld->ld_msgid, LDAP_REQ_BIND, |
id, LDAP_REQ_BIND, |
ld->ld_version, dn, LDAP_AUTH_SASL, |
ld->ld_version, dn, LDAP_AUTH_SASL, |
mechanism ); |
mechanism ); |
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} else { |
} else { |
/* SASL bind w/ creditials */ |
/* SASL bind w/ credentials */ |
rc = ber_printf( ber, "{it{ist{sO}}" /*}*/, |
rc = ber_printf( ber, "{it{ist{sON}N}" /*}*/, |
++ld->ld_msgid, LDAP_REQ_BIND, |
id, LDAP_REQ_BIND, |
ld->ld_version, dn, LDAP_AUTH_SASL, |
ld->ld_version, dn, LDAP_AUTH_SASL, |
mechanism, cred ); |
mechanism, cred ); |
} |
} |
Line 127 ldap_sasl_bind(
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Line 142 ldap_sasl_bind(
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return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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if ( ber_printf( ber, /*{*/ "}" ) == -1 ) { |
if ( ber_printf( ber, /*{*/ "N}" ) == -1 ) { |
ld->ld_errno = LDAP_ENCODING_ERROR; |
ld->ld_errno = LDAP_ENCODING_ERROR; |
ber_free( ber, 1 ); |
ber_free( ber, 1 ); |
return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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#ifndef LDAP_NOCACHE |
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if ( ld->ld_cache != NULL ) { |
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ldap_flush_cache( ld ); |
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} |
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#endif /* !LDAP_NOCACHE */ |
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/* send the message */ |
/* send the message */ |
*msgidp = ldap_send_initial_request( ld, LDAP_REQ_BIND, dn, ber ); |
*msgidp = ldap_send_initial_request( ld, LDAP_REQ_BIND, dn, ber, id ); |
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if(*msgidp < 0) |
if(*msgidp < 0) |
return ld->ld_errno; |
return ld->ld_errno; |
Line 180 ldap_sasl_bind_s(
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Line 190 ldap_sasl_bind_s(
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return( rc ); |
return( rc ); |
} |
} |
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#ifdef LDAP_CONNECTIONLESS |
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if (LDAP_IS_UDP(ld)) { |
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return( rc ); |
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} |
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#endif |
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if ( ldap_result( ld, msgid, 1, NULL, &result ) == -1 ) { |
if ( ldap_result( ld, msgid, 1, NULL, &result ) == -1 ) { |
return( ld->ld_errno ); /* ldap_result sets ld_errno */ |
return( ld->ld_errno ); /* ldap_result sets ld_errno */ |
} |
} |
Line 190 ldap_sasl_bind_s(
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Line 206 ldap_sasl_bind_s(
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rc = ldap_parse_sasl_bind_result( ld, result, &scredp, 0 ); |
rc = ldap_parse_sasl_bind_result( ld, result, &scredp, 0 ); |
} |
} |
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if( rc != LDAP_SUCCESS ) { |
if ( rc != LDAP_SUCCESS && rc != LDAP_SASL_BIND_IN_PROGRESS ) { |
ldap_msgfree( result ); |
ldap_msgfree( result ); |
return( rc ); |
return( rc ); |
} |
} |
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rc = ldap_result2error( ld, result, 1 ); |
rc = ldap_result2error( ld, result, 1 ); |
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if( rc == LDAP_SUCCESS ) { |
if ( rc == LDAP_SUCCESS || rc == LDAP_SASL_BIND_IN_PROGRESS ) { |
if( servercredp != NULL ) { |
if( servercredp != NULL ) { |
*servercredp = scredp; |
*servercredp = scredp; |
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scredp = NULL; |
} |
} |
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} |
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} else if (scredp != NULL ) { |
if ( scredp != NULL ) { |
ber_bvfree(scredp); |
ber_bvfree(scredp); |
} |
} |
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Line 243 ldap_parse_sasl_bind_result(
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Line 261 ldap_parse_sasl_bind_result(
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assert( LDAP_VALID( ld ) ); |
assert( LDAP_VALID( ld ) ); |
assert( res != NULL ); |
assert( res != NULL ); |
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if ( ld == NULL || res == NULL ) { |
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return LDAP_PARAM_ERROR; |
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} |
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if( servercredp != NULL ) { |
if( servercredp != NULL ) { |
if( ld->ld_version < LDAP_VERSION2 ) { |
if( ld->ld_version < LDAP_VERSION2 ) { |
return LDAP_NOT_SUPPORTED; |
return LDAP_NOT_SUPPORTED; |
Line 280 ldap_parse_sasl_bind_result(
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Line 294 ldap_parse_sasl_bind_result(
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} |
} |
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if ( ld->ld_version < LDAP_VERSION2 ) { |
if ( ld->ld_version < LDAP_VERSION2 ) { |
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#ifdef LDAP_NULL_IS_NULL |
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tag = ber_scanf( ber, "{iA}", |
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&errcode, &ld->ld_error ); |
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#else /* ! LDAP_NULL_IS_NULL */ |
tag = ber_scanf( ber, "{ia}", |
tag = ber_scanf( ber, "{ia}", |
&errcode, &ld->ld_error ); |
&errcode, &ld->ld_error ); |
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#endif /* ! LDAP_NULL_IS_NULL */ |
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if( tag == LBER_ERROR ) { |
if( tag == LBER_ERROR ) { |
ber_free( ber, 0 ); |
ber_free( ber, 0 ); |
Line 292 ldap_parse_sasl_bind_result(
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Line 311 ldap_parse_sasl_bind_result(
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} else { |
} else { |
ber_len_t len; |
ber_len_t len; |
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tag = ber_scanf( ber, "{iaa" /*}*/, |
#ifdef LDAP_NULL_IS_NULL |
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tag = ber_scanf( ber, "{eAA" /*}*/, |
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&errcode, &ld->ld_matched, &ld->ld_error ); |
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#else /* ! LDAP_NULL_IS_NULL */ |
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tag = ber_scanf( ber, "{eaa" /*}*/, |
&errcode, &ld->ld_matched, &ld->ld_error ); |
&errcode, &ld->ld_matched, &ld->ld_error ); |
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#endif /* ! LDAP_NULL_IS_NULL */ |
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if( tag == LBER_ERROR ) { |
if( tag == LBER_ERROR ) { |
ber_free( ber, 0 ); |
ber_free( ber, 0 ); |
Line 341 ldap_parse_sasl_bind_result(
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Line 365 ldap_parse_sasl_bind_result(
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return( ld->ld_errno ); |
return( ld->ld_errno ); |
} |
} |
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#ifdef HAVE_CYRUS_SASL |
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/* |
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* Various Cyrus SASL related stuff. |
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*/ |
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static int sasl_setup( Sockbuf *sb, void *arg ); |
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static int sasl_remove( Sockbuf *sb ); |
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static ber_slen_t sasl_read( Sockbuf *sb, void *buf, ber_len_t len ); |
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static ber_slen_t sasl_write( Sockbuf *sb, void *buf, ber_len_t len ); |
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static int sasl_close( Sockbuf *sb ); |
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static Sockbuf_IO sasl_io= |
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{ |
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sasl_setup, |
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sasl_remove, |
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sasl_read, |
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sasl_write, |
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sasl_close |
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}; |
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#define HAS_SASL( sb ) ((sb)->sb_io==&sasl_io) |
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static char * |
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array2str( char **a ) |
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{ |
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char *s, **v, *p; |
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int len = 0; |
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for ( v = a; *v != NULL; v++ ) { |
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len += strlen( *v ) + 1; /* for a space */ |
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} |
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if ( len == 0 ) { |
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return NULL; |
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} |
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s = LDAP_MALLOC ( len ); /* last space holds \0 */ |
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if ( s == NULL ) { |
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return NULL; |
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} |
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p = s; |
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for ( v = a; *v != NULL; v++ ) { |
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int len; |
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if ( v != a ) { |
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strncpy( p, " ", 1 ); |
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++p; |
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} |
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len = strlen( *v ); |
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strncpy( p, *v, len ); |
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p += len; |
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} |
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*p = '\0'; |
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return s; |
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} |
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int ldap_pvt_sasl_init( void ) |
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{ |
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/* XXX not threadsafe */ |
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static int sasl_initialized = 0; |
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if ( sasl_initialized ) { |
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return 0; |
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} |
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#ifndef CSRIMALLOC |
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sasl_set_alloc( ber_memalloc, ber_memcalloc, ber_memrealloc, ber_memfree ); |
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#endif /* CSRIMALLOC */ |
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if ( sasl_client_init( NULL ) == SASL_OK ) { |
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sasl_initialized = 1; |
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return 0; |
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} |
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return -1; |
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} |
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int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg ) |
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{ |
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/* don't install the stuff unless security has been negotiated */ |
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if ( !HAS_SASL( sb ) ) { |
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ber_pvt_sb_clear_io( sb ); |
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ber_pvt_sb_set_io( sb, &sasl_io, ctx_arg ); |
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} |
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return 0; |
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} |
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static int sasl_setup( Sockbuf *sb, void *arg ) |
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{ |
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sb->sb_iodata = arg; |
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return 0; |
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} |
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static int sasl_remove( Sockbuf *sb ) |
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{ |
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return 0; |
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} |
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static ber_slen_t sasl_read( Sockbuf *sb, void *buf, ber_len_t buflen ) |
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{ |
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char *recv_tok; |
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unsigned recv_tok_len; |
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sasl_conn_t *conn = (sasl_conn_t *)sb->sb_iodata; |
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if ((ber_pvt_sb_io_tcp.sbi_read)( sb, buf, buflen ) != buflen ) { |
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return -1; |
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} |
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if ( sasl_decode( conn, buf, buflen, &recv_tok, &recv_tok_len ) != SASL_OK ) { |
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return -1; |
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} |
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if ( recv_tok_len > buflen ) { |
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LDAP_FREE( recv_tok ); |
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return -1; |
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} |
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memcpy( buf, recv_tok, recv_tok_len ); |
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LDAP_FREE( recv_tok ); |
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return recv_tok_len; |
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} |
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static ber_slen_t sasl_write( Sockbuf *sb, void *buf, ber_len_t len ) |
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{ |
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char *wrapped_tok; |
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unsigned wrapped_tok_len; |
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sasl_conn_t *conn = (sasl_conn_t *)sb->sb_iodata; |
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if ( sasl_encode( conn, (const char *)buf, len, |
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&wrapped_tok, &wrapped_tok_len ) != SASL_OK ) { |
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return -1; |
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} |
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if ((ber_pvt_sb_io_tcp.sbi_write)( sb, wrapped_tok, wrapped_tok_len ) != wrapped_tok_len ) { |
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LDAP_FREE( wrapped_tok ); |
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return -1; |
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} |
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LDAP_FREE( wrapped_tok ); |
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return len; |
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} |
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static int sasl_close( Sockbuf *sb ) |
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{ |
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(ber_pvt_sb_io_tcp.sbi_close)( sb ); |
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} |
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int |
int |
ldap_pvt_sasl_err2ldap( int saslerr ) |
ldap_pvt_sasl_getmechs ( LDAP *ld, char **pmechlist ) |
{ |
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int rc; |
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switch (saslerr) { |
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case SASL_CONTINUE: |
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rc = LDAP_SASL_BIND_IN_PROGRESS; |
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break; |
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case SASL_OK: |
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rc = LDAP_SUCCESS; |
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break; |
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case SASL_FAIL: |
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rc = LDAP_OPERATIONS_ERROR; |
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break; |
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case SASL_NOMEM: |
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rc = LDAP_NO_MEMORY; |
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break; |
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case SASL_NOMECH: |
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rc = LDAP_AUTH_METHOD_NOT_SUPPORTED; |
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break; |
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case SASL_BADAUTH: |
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rc = LDAP_INVALID_CREDENTIALS; |
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break; |
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case SASL_NOAUTHZ: |
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rc = LDAP_INSUFFICIENT_ACCESS; |
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break; |
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case SASL_TOOWEAK: |
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case SASL_ENCRYPT: |
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rc = LDAP_INAPPROPRIATE_AUTH; |
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break; |
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default: |
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rc = LDAP_OPERATIONS_ERROR; |
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break; |
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} |
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return rc; |
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} |
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int |
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ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_CONST char *desired, char **pmechlist ) |
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{ |
{ |
/* we need to query the server for supported mechs anyway */ |
/* we need to query the server for supported mechs anyway */ |
LDAPMessage *res, *e; |
LDAPMessage *res, *e; |
char *attrs[] = { "supportedSASLMechanisms", NULL }; |
char *attrs[] = { "supportedSASLMechanisms", NULL }; |
char **values, *mechlist, **p; |
char **values, *mechlist; |
int rc; |
int rc; |
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rc = ldap_search_s( ld, NULL, LDAP_SCOPE_BASE, |
Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_getmech\n", 0, 0, 0 ); |
"(objectclass=*)", attrs, 0, &res ); |
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rc = ldap_search_s( ld, "", LDAP_SCOPE_BASE, |
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NULL, attrs, 0, &res ); |
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if ( rc != LDAP_SUCCESS ) { |
if ( rc != LDAP_SUCCESS ) { |
return ld->ld_errno; |
return ld->ld_errno; |
Line 553 ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_
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Line 385 ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_
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e = ldap_first_entry( ld, res ); |
e = ldap_first_entry( ld, res ); |
if ( e == NULL ) { |
if ( e == NULL ) { |
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ldap_msgfree( res ); |
if ( ld->ld_errno == LDAP_SUCCESS ) { |
if ( ld->ld_errno == LDAP_SUCCESS ) { |
ld->ld_errno = LDAP_UNAVAILABLE; |
ld->ld_errno = LDAP_NO_SUCH_OBJECT; |
} |
} |
return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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values = ldap_get_values( ld, e, "supportedSASLMechanisms" ); |
values = ldap_get_values( ld, e, "supportedSASLMechanisms" ); |
if ( values == NULL ) { |
if ( values == NULL ) { |
ld->ld_errno = LDAP_NO_SUCH_ATTRIBUTE; |
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ldap_msgfree( res ); |
ldap_msgfree( res ); |
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ld->ld_errno = LDAP_NO_SUCH_ATTRIBUTE; |
return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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if ( desired != NULL ) { |
mechlist = ldap_charray2str( values, " " ); |
rc = LDAP_INAPPROPRIATE_AUTH; |
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for ( p = values; *p != NULL; p++ ) { |
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if ( !strcmp( *p, desired ) == 0 ) { |
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rc = LDAP_SUCCESS; |
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break; |
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} |
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} |
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if ( rc == LDAP_SUCCESS ) { |
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/* just return this */ |
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*pmechlist = LDAP_STRDUP( desired ); |
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return LDAP_SUCCESS; |
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} else { |
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/* couldn't find it */ |
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ld->ld_errno = LDAP_INAPPROPRIATE_AUTH; |
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return ld->ld_errno; |
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} |
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} |
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mechlist = array2str( values ); |
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if ( mechlist == NULL ) { |
if ( mechlist == NULL ) { |
ld->ld_errno = LDAP_NO_MEMORY; |
LDAP_VFREE( values ); |
ldap_value_free( values ); |
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ldap_msgfree( res ); |
ldap_msgfree( res ); |
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ld->ld_errno = LDAP_NO_MEMORY; |
return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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ldap_value_free( values ); |
LDAP_VFREE( values ); |
ldap_msgfree( res ); |
ldap_msgfree( res ); |
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*pmechlist = mechlist; |
*pmechlist = mechlist; |
Line 603 ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_
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Line 415 ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_
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return LDAP_SUCCESS; |
return LDAP_SUCCESS; |
} |
} |
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/* |
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* ldap_sasl_interactive_bind_s - interactive SASL authentication |
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* |
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* This routine uses interactive callbacks. |
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* |
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* LDAP_SUCCESS is returned upon success, the ldap error code |
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* otherwise. |
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*/ |
int |
int |
ldap_pvt_sasl_bind( |
ldap_sasl_interactive_bind_s( |
LDAP *ld, |
LDAP *ld, |
LDAP_CONST char *dn, |
LDAP_CONST char *dn, /* usually NULL */ |
LDAP_CONST char *mechanism, |
LDAP_CONST char *mechs, |
LDAP_CONST sasl_callback_t *callbacks, |
LDAPControl **serverControls, |
LDAPControl **sctrls, |
LDAPControl **clientControls, |
LDAPControl **cctrls ) |
unsigned flags, |
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LDAP_SASL_INTERACT_PROC *interact, |
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void *defaults ) |
{ |
{ |
int saslrc, rc, msgid, ssf = 0; |
int rc; |
struct berval ccred, *scred; |
char *smechs = NULL; |
char *mechlist = NULL; |
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char *host; |
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sasl_interact_t *client_interact = NULL; |
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Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_bind\n", 0, 0, 0 ); |
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/* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */ |
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if (ld->ld_version < LDAP_VERSION3) { |
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ld->ld_errno = LDAP_NOT_SUPPORTED; |
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return ld->ld_errno; |
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} |
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/* |
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* This connects to the host, side effect being that |
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* ldap_host_connected_to() works. |
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*/ |
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rc = ldap_pvt_sasl_getmechs( ld, mechanism, &mechlist ); |
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if ( rc != LDAP_SUCCESS ) { |
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return ld->ld_errno; |
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} |
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/* XXX this doesn't work with PF_LOCAL hosts */ |
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host = ldap_host_connected_to( &ld->ld_sb ); |
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if ( host == NULL ) { |
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LDAP_FREE( mechlist ); |
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ld->ld_errno = LDAP_UNAVAILABLE; |
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return ld->ld_errno; |
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} |
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if ( ld->ld_sasl_context != NULL ) { |
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LDAP_FREE( mechlist ); |
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sasl_dispose( &ld->ld_sasl_context ); |
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} |
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saslrc = sasl_client_new( "ldap", host, callbacks, 0, &ld->ld_sasl_context ); |
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LDAP_FREE( host ); |
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if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) { |
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LDAP_FREE( mechlist ); |
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ld->ld_errno = ldap_pvt_sasl_err2ldap( rc ); |
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sasl_dispose( &ld->ld_sasl_context ); |
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return ld->ld_errno; |
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} |
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ccred.bv_val = NULL; |
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ccred.bv_len = 0; |
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saslrc = sasl_client_start( ld->ld_sasl_context, |
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mechlist, |
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NULL, |
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&client_interact, |
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&ccred.bv_val, |
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(unsigned int *)&ccred.bv_len, |
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&mechanism ); |
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LDAP_FREE( mechlist ); |
#if defined( LDAP_R_COMPILE ) && defined( HAVE_CYRUS_SASL ) |
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ldap_pvt_thread_mutex_lock( &ldap_int_sasl_mutex ); |
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#endif |
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#ifdef LDAP_CONNECTIONLESS |
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if( LDAP_IS_UDP(ld) ) { |
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/* Just force it to simple bind, silly to make the user |
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* ask all the time. No, we don't ever actually bind, but I'll |
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* let the final bind handler take care of saving the cdn. |
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*/ |
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rc = ldap_simple_bind( ld, dn, NULL ); |
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rc = rc < 0 ? rc : 0; |
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goto done; |
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} else |
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#endif |
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if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) { |
#ifdef HAVE_CYRUS_SASL |
ld->ld_errno = ldap_pvt_sasl_err2ldap( saslrc ); |
if( mechs == NULL || *mechs == '\0' ) { |
sasl_dispose( &ld->ld_sasl_context ); |
mechs = ld->ld_options.ldo_def_sasl_mech; |
return ld->ld_errno; |
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} |
} |
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#endif |
scred = NULL; |
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if( mechs == NULL || *mechs == '\0' ) { |
do { |
rc = ldap_pvt_sasl_getmechs( ld, &smechs ); |
sasl_interact_t *client_interact = NULL; |
if( rc != LDAP_SUCCESS ) { |
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goto done; |
rc = ldap_sasl_bind_s( ld, dn, mechanism, &ccred, sctrls, cctrls, &scred ); |
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if ( rc == LDAP_SUCCESS ) { |
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break; |
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} else if ( rc != LDAP_SASL_BIND_IN_PROGRESS ) { |
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if ( ccred.bv_val != NULL ) { |
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LDAP_FREE( ccred.bv_val ); |
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} |
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sasl_dispose( &ld->ld_sasl_context ); |
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return ld->ld_errno; |
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} |
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if ( ccred.bv_val != NULL ) { |
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LDAP_FREE( ccred.bv_val ); |
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ccred.bv_val = NULL; |
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} |
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saslrc = sasl_client_step( ld->ld_sasl_context, |
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(scred == NULL) ? NULL : scred->bv_val, |
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(scred == NULL) ? 0 : scred->bv_len, |
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&client_interact, |
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&ccred.bv_val, |
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(unsigned int *)&ccred.bv_len ); |
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ber_bvfree( scred ); |
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if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) { |
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ld->ld_errno = ldap_pvt_sasl_err2ldap( saslrc ); |
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sasl_dispose( &ld->ld_sasl_context ); |
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return ld->ld_errno; |
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} |
} |
} while ( rc == LDAP_SASL_BIND_IN_PROGRESS ); |
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assert ( rc == LDAP_SUCCESS ); |
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if ( sasl_getprop( ld->ld_sasl_context, SASL_SSF, (void **)&ssf ) |
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== SASL_OK && ssf ) { |
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ldap_pvt_sasl_install( &ld->ld_sb, ld->ld_sasl_context ); |
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} |
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return rc; |
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} |
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/* based on sample/sample-client.c */ |
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static int |
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ldap_pvt_sasl_getsecret(sasl_conn_t *conn, void *context, int id, sasl_secret_t **psecret) |
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{ |
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struct berval *passphrase = (struct berval *)context; |
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size_t len; |
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if ( conn == NULL || psecret == NULL || id != SASL_CB_PASS ) { |
Debug( LDAP_DEBUG_TRACE, |
return SASL_BADPARAM; |
"ldap_sasl_interactive_bind_s: server supports: %s\n", |
} |
smechs, 0, 0 ); |
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len = (passphrase != NULL) ? (size_t)passphrase->bv_len: 0; |
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*psecret = (sasl_secret_t *) LDAP_MALLOC( sizeof( sasl_secret_t ) + len ); |
mechs = smechs; |
if ( *psecret == NULL ) { |
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return SASL_NOMEM; |
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} |
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(*psecret)->len = passphrase->bv_len; |
} else { |
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Debug( LDAP_DEBUG_TRACE, |
if ( passphrase != NULL ) { |
"ldap_sasl_interactive_bind_s: user selected: %s\n", |
memcpy((*psecret)->data, passphrase->bv_val, len); |
mechs, 0, 0 ); |
} |
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return SASL_OK; |
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} |
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static int |
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ldap_pvt_sasl_getsimple(void *context, int id, const char **result, int *len) |
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{ |
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const char *value = (const char *)context; |
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if ( result == NULL ) { |
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return SASL_BADPARAM; |
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} |
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switch ( id ) { |
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case SASL_CB_USER: |
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case SASL_CB_AUTHNAME: |
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*result = value; |
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if ( len ) |
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*len = value ? strlen( value ) : 0; |
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break; |
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case SASL_CB_LANGUAGE: |
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*result = NULL; |
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if ( len ) |
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*len = 0; |
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break; |
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default: |
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return SASL_BADPARAM; |
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} |
} |
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return SASL_OK; |
rc = ldap_int_sasl_bind( ld, dn, mechs, |
} |
serverControls, clientControls, |
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flags, interact, defaults ); |
/* |
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* ldap_negotiated_sasl_bind_s - bind to the ldap server (and X.500) using SASL |
done: |
* authentication. The dn and password of the entry to which to bind are |
#if defined( LDAP_R_COMPILE ) && defined( HAVE_CYRUS_SASL ) |
* supplied. LDAP_SUCCESS is returned upon success, the ldap error code |
ldap_pvt_thread_mutex_unlock( &ldap_int_sasl_mutex ); |
* otherwise. |
#endif |
* |
if ( smechs ) LDAP_FREE( smechs ); |
* Example: |
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* ldap_negotiated_sasl_bind_s( ld, NULL, |
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* "dn:cn=manager", NULL, "GSSAPI", NULL, NULL, NULL ); |
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*/ |
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int |
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ldap_negotiated_sasl_bind_s( |
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LDAP *ld, |
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LDAP_CONST char *dn, /* usually NULL */ |
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LDAP_CONST char *authorizationId, |
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LDAP_CONST char *authenticationId, |
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LDAP_CONST char *saslMechanism, |
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struct berval *passPhrase, |
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LDAPControl **serverControls, |
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LDAPControl **clientControls) |
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{ |
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sasl_callback_t callbacks[4]; |
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int rc; |
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|
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callbacks[0].id = SASL_CB_USER; |
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callbacks[0].proc = ldap_pvt_sasl_getsimple; |
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callbacks[0].context = (void *)authorizationId; |
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callbacks[1].id = SASL_CB_AUTHNAME; |
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callbacks[1].proc = ldap_pvt_sasl_getsimple; |
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callbacks[1].context = (void *)authenticationId; |
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callbacks[2].id = SASL_CB_PASS; |
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callbacks[2].proc = ldap_pvt_sasl_getsecret; |
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callbacks[2].context = (void *)passPhrase; |
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callbacks[3].id = SASL_CB_LIST_END; |
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callbacks[3].proc = NULL; |
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callbacks[3].context = NULL; |
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rc = ldap_pvt_sasl_bind(ld, dn, saslMechanism, callbacks, serverControls, clientControls); |
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|
|
return rc; |
return rc; |
} |
} |
#endif /* HAVE_CYRUS_SASL */ |
|