mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
334 lines
6.7 KiB
C
334 lines
6.7 KiB
C
/*
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* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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/*
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* BindRequest ::= SEQUENCE {
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* version INTEGER,
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* name DistinguishedName, -- who
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* authentication CHOICE {
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* simple [0] OCTET STRING -- passwd
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#ifdef HAVE_KERBEROS
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* krbv42ldap [1] OCTET STRING
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* krbv42dsa [2] OCTET STRING
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#endif
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* sasl [3] SaslCredentials -- LDAPv3
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* }
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* }
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*
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* BindResponse ::= SEQUENCE {
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* COMPONENTS OF LDAPResult,
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* serverSaslCreds OCTET STRING OPTIONAL -- LDAPv3
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* }
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*
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include "ldap-int.h"
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/*
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* ldap_sasl_bind - bind to the ldap server (and X.500). The dn, mechanism, and
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* credentials of the entry to which to bind are supplied. The message id
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* of the request initiated is provided upon successful (LDAP_SUCCESS) return.
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*
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* Example:
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* ldap_sasl_bind( ld, "cn=manager, o=university of michigan, c=us",
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* "mechanism", "secret", NULL, NULL, &msgid )
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*/
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int
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ldap_sasl_bind(
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LDAP *ld,
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LDAP_CONST char *dn,
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LDAP_CONST char *mechanism,
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struct berval *cred,
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LDAPControl **sctrls,
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LDAPControl **cctrls,
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int *msgidp )
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{
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BerElement *ber;
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int rc;
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Debug( LDAP_DEBUG_TRACE, "ldap_sasl_bind\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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assert( msgidp != NULL );
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if( msgidp == NULL ) {
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ld->ld_errno = LDAP_PARAM_ERROR;
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return ld->ld_errno;
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}
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if( mechanism != LDAP_SASL_SIMPLE
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&& ld->ld_version < LDAP_VERSION3)
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{
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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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if ( dn == NULL )
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dn = "";
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/* create a message to send */
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if ( (ber = ldap_alloc_ber_with_options( ld )) == 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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assert( BER_VALID( ber ) );
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if( mechanism == LDAP_SASL_SIMPLE ) {
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/* simple bind */
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rc = ber_printf( ber, "{it{istO}" /*}*/,
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++ld->ld_msgid, LDAP_REQ_BIND,
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ld->ld_version, dn, LDAP_AUTH_SIMPLE,
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cred );
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} else if ( cred == NULL ) {
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/* SASL bind w/o creditials */
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rc = ber_printf( ber, "{it{ist{s}}" /*}*/,
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++ld->ld_msgid, LDAP_REQ_BIND,
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ld->ld_version, dn, LDAP_AUTH_SASL,
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mechanism );
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} else {
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/* SASL bind w/ creditials */
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rc = ber_printf( ber, "{it{ist{sO}}" /*}*/,
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++ld->ld_msgid, LDAP_REQ_BIND,
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ld->ld_version, dn, LDAP_AUTH_SASL,
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mechanism, cred );
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}
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if( rc == -1 ) {
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ld->ld_errno = LDAP_ENCODING_ERROR;
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ber_free( ber, 1 );
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return( -1 );
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}
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/* Put Server Controls */
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if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) {
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ber_free( ber, 1 );
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return ld->ld_errno;
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}
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if ( ber_printf( ber, /*{*/ "}" ) == -1 ) {
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ld->ld_errno = LDAP_ENCODING_ERROR;
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ber_free( ber, 1 );
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return ld->ld_errno;
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}
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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 */
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*msgidp = ldap_send_initial_request( ld, LDAP_REQ_BIND, dn, ber );
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if(*msgidp < 0)
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return ld->ld_errno;
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return LDAP_SUCCESS;
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}
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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
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ldap_sasl_bind_s(
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LDAP *ld,
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LDAP_CONST char *dn,
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LDAP_CONST char *mechanism,
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struct berval *cred,
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LDAPControl **sctrls,
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LDAPControl **cctrls,
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struct berval **servercredp )
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{
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int rc, msgid;
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LDAPMessage *result;
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struct berval *scredp = NULL;
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Debug( LDAP_DEBUG_TRACE, "ldap_sasl_bind_s\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( servercredp != NULL ) {
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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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*servercredp = NULL;
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}
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rc = ldap_sasl_bind( ld, dn, mechanism, cred, sctrls, cctrls, &msgid );
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if ( rc != LDAP_SUCCESS ) {
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return( rc );
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}
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if ( ldap_result( ld, msgid, 1, NULL, &result ) == -1 ) {
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return( ld->ld_errno ); /* ldap_result sets ld_errno */
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}
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/* parse the results */
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scredp = NULL;
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if( servercredp != NULL ) {
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rc = ldap_parse_sasl_bind_result( ld, result, &scredp, 0 );
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}
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if( rc != LDAP_SUCCESS ) {
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ldap_msgfree( result );
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return( rc );
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}
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rc = ldap_result2error( ld, result, 1 );
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if( rc == LDAP_SUCCESS ) {
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if( servercredp != NULL ) {
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*servercredp = scredp;
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}
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} else if (scredp != NULL ) {
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ber_bvfree(scredp);
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}
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return rc;
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}
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/*
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* Parse BindResponse:
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*
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* BindResponse ::= [APPLICATION 1] SEQUENCE {
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* COMPONENTS OF LDAPResult,
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* serverSaslCreds [7] OCTET STRING OPTIONAL }
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*
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* LDAPResult ::= SEQUENCE {
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* resultCode ENUMERATED,
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* matchedDN LDAPDN,
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* errorMessage LDAPString,
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* referral [3] Referral OPTIONAL }
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*/
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int
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ldap_parse_sasl_bind_result(
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LDAP *ld,
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LDAPMessage *res,
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struct berval **servercredp,
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int freeit )
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{
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ber_int_t errcode;
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struct berval* scred;
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ber_tag_t tag;
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BerElement *ber;
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Debug( LDAP_DEBUG_TRACE, "ldap_parse_sasl_bind_result\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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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) {
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if( ld->ld_version < LDAP_VERSION2 ) {
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return LDAP_NOT_SUPPORTED;
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}
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*servercredp = NULL;
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}
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if( res->lm_msgtype == LDAP_RES_BIND ) {
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ld->ld_errno = LDAP_PARAM_ERROR;
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return ld->ld_errno;
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}
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errcode = LDAP_SUCCESS;
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scred = NULL;
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if ( ld->ld_error ) {
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LDAP_FREE( ld->ld_error );
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ld->ld_error = NULL;
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}
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if ( ld->ld_matched ) {
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LDAP_FREE( ld->ld_matched );
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ld->ld_matched = NULL;
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}
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/* parse results */
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ber = ber_dup( res->lm_ber );
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if ( ld->ld_version < LDAP_VERSION2 ) {
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tag = ber_scanf( ber, "{ia}",
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&errcode, &ld->ld_error );
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} else {
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ber_len_t len;
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tag = ber_scanf( ber, "{iaa" /*}*/,
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&errcode, &ld->ld_matched, &ld->ld_error );
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if( tag != LBER_ERROR ) {
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tag = ber_peek_tag(ber, &len);
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}
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if( tag == LDAP_TAG_REFERRAL ) {
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/* skip 'em */
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tag = ber_scanf( ber, "x" );
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if( tag != LBER_ERROR ) {
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tag = ber_peek_tag(ber, &len);
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}
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}
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/* need to clean out misc items */
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if( tag == LDAP_TAG_SASL_RES_CREDS ) {
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tag = ber_scanf( ber, "O", &scred );
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}
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}
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if ( tag == LBER_ERROR ) {
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errcode = LDAP_DECODING_ERROR;
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}
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if( ber != NULL ) {
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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;
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} else if ( scred != NULL ) {
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ber_bvfree( scred );
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}
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if ( freeit ) {
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ldap_msgfree( res );
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}
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ld->ld_errno = errcode;
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return( ld->ld_errno );
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}
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