usr/src/lib/libldap5/sources/ldap/common/extendop.c

   1 #pragma ident   "%Z%%M% %I%     %E% SMI"
   2
   3 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
   4  *
   5  * The contents of this file are subject to the Netscape Public License
   6  * Version 1.0 (the "NPL"); you may not use this file except in
   7  * compliance with the NPL.  You may obtain a copy of the NPL at
   8  * http://www.mozilla.org/NPL/
   9  *
  10  * Software distributed under the NPL is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
  12  * for the specific language governing rights and limitations under the
  13  * NPL.
  14  *
  15  * The Initial Developer of this code under the NPL is Netscape
  16  * Communications Corporation.  Portions created by Netscape are
  17  * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
  18  * Reserved.
  19  */
  20 #include "ldap-int.h"
  21
  22 /*
  23  * ldap_extended_operation - initiate an arbitrary ldapv3 extended operation.
  24  * the oid and data of the extended operation are supplied. Returns an
  25  * LDAP error code.
  26  *
  27  * Example:
  28  *      struct berval   exdata;
  29  *      char            *exoid;
  30  *      int             err, msgid;
  31  *      ... fill in oid and data ...
  32  *      err = ldap_extended_operation( ld, exoid, &exdata, NULL, NULL, &msgid );
  33  */
  34
  35 int
  36 LDAP_CALL
  37 ldap_extended_operation(
  38     LDAP                *ld,
  39     const char          *exoid,
  40     const struct berval *exdata,
  41     LDAPControl         **serverctrls,
  42     LDAPControl         **clientctrls,
  43     int                 *msgidp
  44 )
  45 {
  46         BerElement      *ber;
  47         int             rc, msgid;
  48
  49         /*
  50          * the ldapv3 extended operation request looks like this:
  51          *
  52          *      ExtendedRequest ::= [APPLICATION 23] SEQUENCE {
  53          *              requestName     LDAPOID,
  54          *              requestValue    OCTET STRING
  55          *      }
  56          *
  57          * all wrapped up in an LDAPMessage sequence.
  58          */
  59
  60         LDAPDebug( LDAP_DEBUG_TRACE, "ldap_extended_operation\n", 0, 0, 0 );
  61
  62         if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
  63                 return( LDAP_PARAM_ERROR );
  64         }
  65
  66
  67         /* only ldapv3 or higher can do extended operations */
  68         if ( NSLDAPI_LDAP_VERSION( ld ) < LDAP_VERSION3 ) {
  69                 rc = LDAP_NOT_SUPPORTED;
  70                 LDAP_SET_LDERRNO( ld, rc, NULL, NULL );
  71                 return( rc );
  72         }
  73
  74         if ( msgidp == NULL || exoid == NULL || *exoid == '\0' ||
  75                         exdata == NULL || exdata->bv_val == NULL ) {
  76                 rc = LDAP_PARAM_ERROR;
  77                 LDAP_SET_LDERRNO( ld, rc, NULL, NULL );
  78                 return( rc );
  79         }
  80
  81         LDAP_MUTEX_LOCK( ld, LDAP_MSGID_LOCK );
  82         msgid = ++ld->ld_msgid;
  83         LDAP_MUTEX_UNLOCK( ld, LDAP_MSGID_LOCK );
  84
  85 #if 0
  86         if ( ld->ld_cache_on && ld->ld_cache_extendedop != NULL ) {
  87                 LDAP_MUTEX_LOCK( ld, LDAP_CACHE_LOCK );
  88                 if ( (rc = (ld->ld_cache_extendedop)( ld, msgid,
  89                     LDAP_REQ_EXTENDED, exoid, cred )) != 0 ) {
  90                         LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
  91                         return( rc );
  92                 }
  93                 LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
  94         }
  95 #endif
  96
  97         /* create a message to send */
  98         if (( rc = nsldapi_alloc_ber_with_options( ld, &ber ))
  99             != LDAP_SUCCESS ) {
 100                 return( rc );
 101         }
 102
 103         /* fill it in */
 104         if ( ber_printf( ber, "{it{tsto}", msgid, LDAP_REQ_EXTENDED,
 105             LDAP_TAG_EXOP_REQ_OID, exoid, LDAP_TAG_EXOP_REQ_VALUE,
 106             exdata->bv_val, (int)exdata->bv_len /* XXX lossy cast */ ) == -1 ) {
 107                 rc = LDAP_ENCODING_ERROR;
 108                 LDAP_SET_LDERRNO( ld, rc, NULL, NULL );
 109                 ber_free( ber, 1 );
 110                 return( rc );
 111         }
 112
 113         if (( rc = nsldapi_put_controls( ld, serverctrls, 1, ber ))
 114             != LDAP_SUCCESS ) {
 115                 ber_free( ber, 1 );
 116                 return( rc );
 117         }
 118
 119         /* send the message */
 120         rc = nsldapi_send_initial_request( ld, msgid, LDAP_REQ_EXTENDED, NULL,
 121                 ber );
 122         *msgidp = rc;
 123         return( rc < 0 ? LDAP_GET_LDERRNO( ld, NULL, NULL ) : LDAP_SUCCESS );
 124 }
 125
 126
 127 /*
 128  * ldap_extended_operation_s - perform an arbitrary ldapv3 extended operation.
 129  * the oid and data of the extended operation are supplied. LDAP_SUCCESS
 130  * is returned upon success, the ldap error code otherwise.
 131  *
 132  * Example:
 133  *      struct berval   exdata, exretval;
 134  *      char            *exoid;
 135  *      int             rc;
 136  *      ... fill in oid and data ...
 137  *      rc = ldap_extended_operation_s( ld, exoid, &exdata, &exretval );
 138  */
 139 int
 140 LDAP_CALL
 141 ldap_extended_operation_s(
 142     LDAP                *ld,
 143     const char          *requestoid,
 144     const struct berval *requestdata,
 145     LDAPControl         **serverctrls,
 146     LDAPControl         **clientctrls,
 147     char                **retoidp,
 148     struct berval       **retdatap
 149 )
 150 {
 151         int             err, msgid;
 152         LDAPMessage     *result;
 153
 154         if (( err = ldap_extended_operation( ld, requestoid, requestdata,
 155             serverctrls, clientctrls, &msgid )) != LDAP_SUCCESS ) {
 156                 return( err );
 157         }
 158
 159         if ( ldap_result( ld, msgid, 1, NULL, &result )
 160             == -1 ) {
 161                 return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );
 162         }
 163
 164         if (( err = ldap_parse_extended_result( ld, result, retoidp, retdatap,
 165                 0 )) != LDAP_SUCCESS ) {
 166             ldap_msgfree( result );
 167             return( err );
 168         }
 169
 170         return( ldap_result2error( ld, result, 1 ) );
 171 }
 172
 173
 174 /*
 175  * Pull the oid returned by the server and the data out of an extended
 176  * operation result.  Return an LDAP error code.
 177  */
 178 int
 179 LDAP_CALL
 180 ldap_parse_extended_result(
 181     LDAP                *ld,
 182     LDAPMessage         *res,
 183     char                **retoidp,      /* may be NULL */
 184     struct berval       **retdatap,     /* may be NULL */
 185     int                 freeit
 186 )
 187 {
 188         struct berelement       ber;
 189         ber_len_t               len;
 190         ber_int_t               err;
 191         char                    *m, *e, *roid;
 192         struct berval           *rdata;
 193
 194         LDAPDebug( LDAP_DEBUG_TRACE, "ldap_parse_extended_result\n", 0, 0, 0 );
 195
 196         if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
 197                 return( LDAP_PARAM_ERROR );
 198         }
 199
 200         if ( !NSLDAPI_VALID_LDAPMESSAGE_EXRESULT_POINTER( res )) {
 201                 return( LDAP_PARAM_ERROR );
 202         }
 203
 204         m = e = NULL;
 205         ber = *(res->lm_ber);
 206         if ( NSLDAPI_LDAP_VERSION( ld ) < LDAP_VERSION3 ) {
 207                 LDAP_SET_LDERRNO( ld, LDAP_NOT_SUPPORTED, NULL, NULL );
 208                 return( LDAP_NOT_SUPPORTED );
 209         }
 210
 211         if ( ber_scanf( &ber, "{iaa", &err, &m, &e ) == LBER_ERROR ) {
 212                 goto decoding_error;
 213         }
 214         roid = NULL;
 215         if ( ber_peek_tag( &ber, &len ) == LDAP_TAG_EXOP_RES_OID ) {
 216                 if ( ber_scanf( &ber, "a", &roid ) == LBER_ERROR ) {
 217                         goto decoding_error;
 218                 }
 219         }
 220         if ( retoidp != NULL ) {
 221                 *retoidp = roid;
 222         } else if ( roid != NULL ) {
 223                 NSLDAPI_FREE( roid );
 224         }
 225
 226         rdata = NULL;
 227         if ( ber_peek_tag( &ber, &len ) == LDAP_TAG_EXOP_RES_VALUE ) {
 228                 if ( ber_scanf( &ber, "O", &rdata ) == LBER_ERROR ) {
 229                         goto decoding_error;
 230                 }
 231         }
 232         if ( retdatap != NULL ) {
 233                 *retdatap = rdata;
 234         } else if ( rdata != NULL ) {
 235                 ber_bvfree( rdata );
 236         }
 237
 238         LDAP_SET_LDERRNO( ld, err, m, e );
 239
 240         if ( freeit ) {
 241                 ldap_msgfree( res );
 242         }
 243
 244         return( LDAP_SUCCESS );
 245
 246 decoding_error:;
 247         LDAP_SET_LDERRNO( ld, LDAP_DECODING_ERROR, NULL, NULL );
 248         return( LDAP_DECODING_ERROR );
 249 }