version 1.1.4.1, 1999/09/10 20:25:26
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version 1.29, 2000/07/15 21:25:47
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/* $OpenLDAP: pkg/ldap/libraries/libldap/sasl.c,v 1.2 1999/09/08 17:06:29 kdz Exp $ */ |
/* $OpenLDAP: pkg/ldap/libraries/libldap/sasl.c,v 1.28 2000/07/13 20:54:47 kurt Exp $ */ |
/* |
/* |
* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved. |
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved. |
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file |
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file |
*/ |
*/ |
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* name DistinguishedName, -- who |
* name DistinguishedName, -- who |
* authentication CHOICE { |
* authentication CHOICE { |
* simple [0] OCTET STRING -- passwd |
* simple [0] OCTET STRING -- passwd |
#ifdef HAVE_KERBEROS |
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND |
* krbv42ldap [1] OCTET STRING |
* krbv42ldap [1] OCTET STRING |
* krbv42dsa [2] OCTET STRING |
* krbv42dsa [2] OCTET STRING |
#endif |
#endif |
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#include "portable.h" |
#include "portable.h" |
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#include <stdlib.h> |
#include <stdio.h> |
#include <stdio.h> |
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#include <ac/socket.h> |
#include <ac/socket.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 70 ldap_sasl_bind(
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Line 73 ldap_sasl_bind(
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return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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if( mechanism != LDAP_SASL_SIMPLE |
if( mechanism == LDAP_SASL_SIMPLE ) { |
&& ld->ld_version < LDAP_VERSION3) |
if( dn == NULL && cred != NULL ) { |
{ |
/* use default binddn */ |
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dn = ld->ld_defbinddn; |
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} |
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} else if( ld->ld_version < LDAP_VERSION3 ) { |
ld->ld_errno = LDAP_NOT_SUPPORTED; |
ld->ld_errno = LDAP_NOT_SUPPORTED; |
return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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if ( dn == NULL ) |
if ( dn == NULL ) { |
dn = ""; |
dn = ""; |
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} |
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/* create a message to send */ |
/* create a message to send */ |
if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) { |
if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) { |
Line 90 ldap_sasl_bind(
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Line 98 ldap_sasl_bind(
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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, |
++ld->ld_msgid, 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 ) { |
/* SASL bind w/o creditials */ |
/* SASL bind w/o creditials */ |
rc = ber_printf( ber, "{it{ist{s}}" /*}*/, |
rc = ber_printf( ber, "{it{ist{sN}N}" /*}*/, |
++ld->ld_msgid, LDAP_REQ_BIND, |
++ld->ld_msgid, 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/ creditials */ |
rc = ber_printf( ber, "{it{ist{sO}}" /*}*/, |
rc = ber_printf( ber, "{it{ist{sON}N}" /*}*/, |
++ld->ld_msgid, LDAP_REQ_BIND, |
++ld->ld_msgid, LDAP_REQ_BIND, |
ld->ld_version, dn, LDAP_AUTH_SASL, |
ld->ld_version, dn, LDAP_AUTH_SASL, |
mechanism, cred ); |
mechanism, cred ); |
Line 122 ldap_sasl_bind(
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Line 130 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; |
Line 143 ldap_sasl_bind(
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Line 151 ldap_sasl_bind(
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return LDAP_SUCCESS; |
return LDAP_SUCCESS; |
} |
} |
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/* |
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* ldap_sasl_bind_s - bind to the ldap server (and X.500) using simple |
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* authentication. The dn and password of the entry to which to bind are |
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* supplied. LDAP_SUCCESS is returned upon success, the ldap error code |
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* otherwise. |
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* |
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* Example: |
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* ldap_sasl_bind_s( ld, "cn=manager, o=university of michigan, c=us", |
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* "mechanism", "secret", NULL, NULL, &servercred ) |
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*/ |
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int |
int |
ldap_sasl_bind_s( |
ldap_sasl_bind_s( |
Line 195 ldap_sasl_bind_s(
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Line 193 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 216 ldap_sasl_bind_s(
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Line 216 ldap_sasl_bind_s(
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/* |
/* |
* Parse BindResponse: |
* Parse BindResponse: |
* |
* |
* BindResponse ::= [APPLICATION 1] SEQUENCE { |
* BindResponse ::= [APPLICATION 1] SEQUENCE { |
* COMPONENTS OF LDAPResult, |
* COMPONENTS OF LDAPResult, |
* serverSaslCreds [7] OCTET STRING OPTIONAL } |
* serverSaslCreds [7] OCTET STRING OPTIONAL } |
* |
* |
* LDAPResult ::= SEQUENCE { |
* LDAPResult ::= SEQUENCE { |
* resultCode ENUMERATED, |
* resultCode ENUMERATED, |
* matchedDN LDAPDN, |
* matchedDN LDAPDN, |
* errorMessage LDAPString, |
* errorMessage LDAPString, |
* referral [3] Referral OPTIONAL } |
* referral [3] Referral OPTIONAL } |
*/ |
*/ |
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int |
int |
ldap_parse_sasl_bind_result( |
ldap_parse_sasl_bind_result( |
Line 252 ldap_parse_sasl_bind_result(
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Line 252 ldap_parse_sasl_bind_result(
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return LDAP_PARAM_ERROR; |
return LDAP_PARAM_ERROR; |
} |
} |
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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; |
} |
} |
*servercredp = NULL; |
*servercredp = NULL; |
} |
} |
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if( res->lm_msgtype == LDAP_RES_BIND ) { |
if( res->lm_msgtype != LDAP_RES_BIND ) { |
ld->ld_errno = LDAP_PARAM_ERROR; |
ld->ld_errno = LDAP_PARAM_ERROR; |
return ld->ld_errno; |
return ld->ld_errno; |
} |
} |
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errcode = LDAP_SUCCESS; |
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scred = NULL; |
scred = NULL; |
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if ( ld->ld_error ) { |
if ( ld->ld_error ) { |
Line 280 ldap_parse_sasl_bind_result(
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Line 279 ldap_parse_sasl_bind_result(
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ber = ber_dup( res->lm_ber ); |
ber = ber_dup( res->lm_ber ); |
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if( ber == NULL ) { |
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ld->ld_errno = LDAP_NO_MEMORY; |
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return ld->ld_errno; |
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} |
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if ( ld->ld_version < LDAP_VERSION2 ) { |
if ( ld->ld_version < LDAP_VERSION2 ) { |
tag = ber_scanf( ber, "{ia}", |
tag = ber_scanf( ber, "{ia}", |
&errcode, &ld->ld_error ); |
&errcode, &ld->ld_error ); |
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if( tag == LBER_ERROR ) { |
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ber_free( ber, 0 ); |
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ld->ld_errno = LDAP_DECODING_ERROR; |
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return ld->ld_errno; |
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} |
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} else { |
} else { |
ber_len_t len; |
ber_len_t len; |
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tag = ber_scanf( ber, "{iaa" /*}*/, |
tag = ber_scanf( ber, "{iaa" /*}*/, |
&errcode, &ld->ld_matched, &ld->ld_error ); |
&errcode, &ld->ld_matched, &ld->ld_error ); |
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if( tag != LBER_ERROR ) { |
if( tag == LBER_ERROR ) { |
tag = ber_peek_tag(ber, &len); |
ber_free( ber, 0 ); |
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ld->ld_errno = LDAP_DECODING_ERROR; |
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return ld->ld_errno; |
} |
} |
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tag = ber_peek_tag(ber, &len); |
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if( tag == LDAP_TAG_REFERRAL ) { |
if( tag == LDAP_TAG_REFERRAL ) { |
/* skip 'em */ |
/* skip 'em */ |
tag = ber_scanf( ber, "x" ); |
if( ber_scanf( ber, "x" ) == LBER_ERROR ) { |
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ber_free( ber, 0 ); |
if( tag != LBER_ERROR ) { |
ld->ld_errno = LDAP_DECODING_ERROR; |
tag = ber_peek_tag(ber, &len); |
return ld->ld_errno; |
} |
} |
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tag = ber_peek_tag(ber, &len); |
} |
} |
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/* need to clean out misc items */ |
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if( tag == LDAP_TAG_SASL_RES_CREDS ) { |
if( tag == LDAP_TAG_SASL_RES_CREDS ) { |
tag = ber_scanf( ber, "O", &scred ); |
if( ber_scanf( ber, "O", &scred ) == LBER_ERROR ) { |
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ber_free( ber, 0 ); |
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ld->ld_errno = LDAP_DECODING_ERROR; |
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return ld->ld_errno; |
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} |
} |
} |
} |
} |
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if ( tag == LBER_ERROR ) { |
ber_free( ber, 0 ); |
errcode = LDAP_DECODING_ERROR; |
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} |
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if( ber != NULL ) { |
if ( servercredp != NULL ) { |
ber_free( ber, 0 ); |
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} |
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/* return */ |
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if ( errcode == LDAP_SUCCESS && servercredp != NULL ) { |
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*servercredp = scred; |
*servercredp = scred; |
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} else if ( scred != NULL ) { |
} else if ( scred != NULL ) { |
ber_bvfree( scred ); |
ber_bvfree( scred ); |
} |
} |
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ld->ld_errno = errcode; |
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if ( freeit ) { |
if ( freeit ) { |
ldap_msgfree( res ); |
ldap_msgfree( res ); |
} |
} |
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ld->ld_errno = errcode; |
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return( ld->ld_errno ); |
return( ld->ld_errno ); |
} |
} |
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int |
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ldap_pvt_sasl_getmechs ( LDAP *ld, char **pmechlist ) |
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{ |
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/* we need to query the server for supported mechs anyway */ |
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LDAPMessage *res, *e; |
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char *attrs[] = { "supportedSASLMechanisms", NULL }; |
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char **values, *mechlist; |
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int rc; |
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Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_getmech\n", 0, 0, 0 ); |
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rc = ldap_search_s( ld, NULL, LDAP_SCOPE_BASE, |
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NULL, attrs, 0, &res ); |
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if ( rc != LDAP_SUCCESS ) { |
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return ld->ld_errno; |
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} |
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e = ldap_first_entry( ld, res ); |
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if ( e == NULL ) { |
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if ( ld->ld_errno == LDAP_SUCCESS ) { |
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ld->ld_errno = LDAP_UNAVAILABLE; |
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} |
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return ld->ld_errno; |
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} |
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values = ldap_get_values( ld, e, "supportedSASLMechanisms" ); |
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if ( values == NULL ) { |
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ld->ld_errno = LDAP_NO_SUCH_ATTRIBUTE; |
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ldap_msgfree( res ); |
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return ld->ld_errno; |
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} |
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mechlist = ldap_charray2str( values, " " ); |
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if ( mechlist == NULL ) { |
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ld->ld_errno = LDAP_NO_MEMORY; |
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LDAP_VFREE( values ); |
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ldap_msgfree( res ); |
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return ld->ld_errno; |
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} |
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LDAP_VFREE( values ); |
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ldap_msgfree( res ); |
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*pmechlist = mechlist; |
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return LDAP_SUCCESS; |
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} |
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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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*/ |
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int |
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ldap_sasl_interactive_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 *mechs, |
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LDAPControl **serverControls, |
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LDAPControl **clientControls, |
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LDAP_SASL_INTERACT_PROC *interact ) |
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{ |
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int rc; |
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if( mechs == NULL || *mechs == '\0' ) { |
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char *smechs; |
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rc = ldap_pvt_sasl_getmechs( ld, &smechs ); |
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if( rc != LDAP_SUCCESS ) { |
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return rc; |
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} |
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Debug( LDAP_DEBUG_TRACE, |
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"ldap_interactive_sasl_bind_s: server supports: %s\n", |
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smechs, 0, 0 ); |
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mechs = smechs; |
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} else { |
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Debug( LDAP_DEBUG_TRACE, |
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"ldap_interactive_sasl_bind_s: user selected: %s\n", |
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mechs, 0, 0 ); |
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} |
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rc = ldap_int_sasl_bind( ld, dn, mechs, |
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serverControls, clientControls, interact ); |
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return rc; |
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} |