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Add bind()
This commit is contained in:
Kurt Zeilenga
parent
c182511f91
commit
0518820376
246
servers/slapd/back-bdb/bind.c
Normal file
246
servers/slapd/back-bdb/bind.c
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@ -0,0 +1,246 @@
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/* bind.c - bdb backend bind routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/krb.h>
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#include <ac/string.h>
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#include <ac/unistd.h>
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#include "back-bdb.h"
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int
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bdb_bind(
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Backend *be,
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Connection *conn,
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Operation *op,
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const char *dn,
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const char *ndn,
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int method,
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struct berval *cred,
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char** edn
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)
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{
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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Entry *e;
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Attribute *a;
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int rc;
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Entry *matched;
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
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char krbname[MAX_K_NAME_SZ + 1];
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AttributeDescription *krbattr = slap_schema.si_ad_krbName;
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AUTH_DAT ad;
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#endif
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AttributeDescription *password = slap_schema.si_ad_userPassword;
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Debug( LDAP_DEBUG_ARGS, "==> bdb_bind: dn: %s\n", dn, 0, 0);
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*edn = NULL;
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/* fetch entry */
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rc = dn2entry_r( be, NULL, ndn, &e, &matched );
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switch(rc) {
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case DB_NOTFOUND:
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case 0:
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break;
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default:
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send_ldap_result( conn, op, rc=LDAP_OTHER,
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NULL, "internal error", NULL, NULL );
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return rc;
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}
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/* get entry with reader lock */
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if ( e == NULL ) {
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char *matched_dn = NULL;
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struct berval **refs = NULL;
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if( matched != NULL ) {
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matched_dn = ch_strdup( matched->e_dn );
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refs = is_entry_referral( matched )
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? get_entry_referrals( be, conn, op, matched )
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: NULL;
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bdb_entry_return( be, matched );
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} else {
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refs = default_referral;
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}
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/* allow noauth binds */
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rc = 1;
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if ( method == LDAP_AUTH_SIMPLE ) {
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if ( be_isroot_pw( be, conn, ndn, cred ) ) {
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*edn = ch_strdup( be_root_dn( be ) );
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rc = LDAP_SUCCESS; /* front end will send result */
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} else if ( refs != NULL ) {
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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} else {
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send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
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NULL, NULL, NULL, NULL );
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}
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} else if ( refs != NULL ) {
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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} else {
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send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
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NULL, NULL, NULL, NULL );
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}
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if ( matched != NULL ) {
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ber_bvecfree( refs );
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free( matched_dn );
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}
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return rc;
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}
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*edn = ch_strdup( e->e_dn );
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/* check for deleted */
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if ( is_entry_alias( e ) ) {
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/* entry is an alias, don't allow bind */
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Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0,
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0, 0 );
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send_ldap_result( conn, op, rc = LDAP_ALIAS_PROBLEM,
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NULL, "entry is alias", NULL, NULL );
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goto done;
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}
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if ( is_entry_referral( e ) ) {
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/* entry is a referral, don't allow bind */
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struct berval **refs = get_entry_referrals( be,
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conn, op, e );
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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if( refs != NULL ) {
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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e->e_dn, NULL, refs, NULL );
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} else {
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send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
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NULL, NULL, NULL, NULL );
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}
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ber_bvecfree( refs );
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goto done;
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}
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switch ( method ) {
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case LDAP_AUTH_SIMPLE:
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/* check for root dn/passwd */
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if ( be_isroot_pw( be, conn, dn, cred ) ) {
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/* front end will send result */
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if(*edn != NULL) free( *edn );
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*edn = ch_strdup( be_root_dn( be ) );
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rc = LDAP_SUCCESS;
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goto done;
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}
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if ( ! access_allowed( be, conn, op, e,
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password, NULL, ACL_AUTH ) )
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{
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send_ldap_result( conn, op, rc = LDAP_INSUFFICIENT_ACCESS,
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NULL, NULL, NULL, NULL );
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goto done;
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}
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if ( (a = attr_find( e->e_attrs, password )) == NULL ) {
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send_ldap_result( conn, op, rc = LDAP_INAPPROPRIATE_AUTH,
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NULL, NULL, NULL, NULL );
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goto done;
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}
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if ( slap_passwd_check( conn, a, cred ) != 0 ) {
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send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
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NULL, NULL, NULL, NULL );
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goto done;
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}
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rc = 0;
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break;
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#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
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case LDAP_AUTH_KRBV41:
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if ( krbv4_ldap_auth( be, cred, &ad ) != LDAP_SUCCESS ) {
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send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
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NULL, NULL, NULL, NULL );
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goto done;
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}
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if ( ! access_allowed( be, conn, op, e,
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krbattr, NULL, ACL_AUTH ) )
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{
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send_ldap_result( conn, op, rc = LDAP_INSUFFICIENT_ACCESS,
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NULL, NULL, NULL, NULL );
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goto done;
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}
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sprintf( krbname, "%s%s%s@%s", ad.pname, *ad.pinst ? "."
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: "", ad.pinst, ad.prealm );
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if ( (a = attr_find( e->e_attrs, krbattr )) == NULL ) {
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/*
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* no krbname values present: check against DN
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*/
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if ( strcasecmp( dn, krbname ) == 0 ) {
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rc = 0;
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break;
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}
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send_ldap_result( conn, op, rc = LDAP_INAPPROPRIATE_AUTH,
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NULL, NULL, NULL, NULL );
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goto done;
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} else { /* look for krbname match */
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struct berval krbval;
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krbval.bv_val = krbname;
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krbval.bv_len = strlen( krbname );
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if ( value_find( a->a_desc, a->a_vals, &krbval ) != 0 ) {
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send_ldap_result( conn, op,
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rc = LDAP_INVALID_CREDENTIALS,
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NULL, NULL, NULL, NULL );
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goto done;
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}
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}
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rc = 0;
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break;
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case LDAP_AUTH_KRBV42:
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send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
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NULL, "Kerberos bind step 2 not supported",
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NULL, NULL );
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goto done;
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#endif
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default:
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send_ldap_result( conn, op, rc = LDAP_STRONG_AUTH_NOT_SUPPORTED,
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NULL, "authentication method not supported", NULL, NULL );
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goto done;
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}
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done:
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/* free entry and reader lock */
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bdb_entry_return( be, e );
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/* front end with send result on success (rc==0) */
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return rc;
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}
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