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openldap  2.4.31
Functions | Variables
backend.c File Reference
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include <sys/stat.h>
#include "slap.h"
#include "config.h"
#include "lutil.h"
#include "lber_pvt.h"

Go to the source code of this file.

Functions

static int backend_init_controls (BackendInfo *bi)
int backend_init (void)
int backend_add (BackendInfo *aBackendInfo)
static int backend_set_controls (BackendDB *be)
int backend_startup_one (Backend *be, ConfigReply *cr)
int backend_startup (Backend *be)
int backend_num (Backend *be)
int backend_shutdown (Backend *be)
void backend_stopdown_one (BackendDB *bd)
void backend_destroy_one (BackendDB *bd, int dynamic)
int backend_destroy (void)
BackendInfobackend_info (const char *type)
void backend_db_insert (BackendDB *be, int idx)
void backend_db_move (BackendDB *be, int idx)
BackendDBbackend_db_init (const char *type, BackendDB *b0, int idx, ConfigReply *cr)
void be_db_close (void)
Backendselect_backend (struct berval *dn, int noSubs)
int be_issuffix (Backend *be, struct berval *bvsuffix)
int be_issubordinate (Backend *be, struct berval *bvsubordinate)
int be_isroot_dn (Backend *be, struct berval *ndn)
int be_slurp_update (Operation *op)
int be_shadow_update (Operation *op)
int be_isupdate_dn (Backend *be, struct berval *ndn)
struct bervalbe_root_dn (Backend *be)
int be_isroot (Operation *op)
int be_isroot_pw (Operation *op)
int be_rootdn_bind (Operation *op, SlapReply *rs)
int be_entry_release_rw (Operation *op, Entry *e, int rw)
int backend_unbind (Operation *op, SlapReply *rs)
int backend_connection_init (Connection *conn)
int backend_connection_destroy (Connection *conn)
int backend_check_controls (Operation *op, SlapReply *rs)
int backend_check_restrictions (Operation *op, SlapReply *rs, struct berval *opdata)
int backend_check_referrals (Operation *op, SlapReply *rs)
int be_entry_get_rw (Operation *op, struct berval *ndn, ObjectClass *oc, AttributeDescription *at, int rw, Entry **e)
int fe_acl_group (Operation *op, Entry *target, struct berval *gr_ndn, struct berval *op_ndn, ObjectClass *group_oc, AttributeDescription *group_at)
int backend_group (Operation *op, Entry *target, struct berval *gr_ndn, struct berval *op_ndn, ObjectClass *group_oc, AttributeDescription *group_at)
int fe_acl_attribute (Operation *op, Entry *target, struct berval *edn, AttributeDescription *entry_at, BerVarray *vals, slap_access_t access)
int backend_attribute (Operation *op, Entry *target, struct berval *edn, AttributeDescription *entry_at, BerVarray *vals, slap_access_t access)
int backend_access (Operation *op, Entry *target, struct berval *edn, AttributeDescription *entry_at, struct berval *nval, slap_access_t access, slap_mask_t *mask)
int fe_aux_operational (Operation *op, SlapReply *rs)
int backend_operational (Operation *op, SlapReply *rs)
ID backend_tool_entry_first (BackendDB *be)

Variables

int nBackendInfo = 0
slap_bi_head backendInfo = LDAP_STAILQ_HEAD_INITIALIZER(backendInfo)
int nBackendDB = 0
slap_be_head backendDB = LDAP_STAILQ_HEAD_INITIALIZER(backendDB)

Function Documentation

int backend_access ( Operation op,
Entry target,
struct berval edn,
AttributeDescription entry_at,
struct berval nval,
slap_access_t  access,
slap_mask_t mask 
)

Definition at line 1787 of file backend.c.

{
       Entry         *e = NULL;
       void          *o_priv, *e_priv = NULL;
       int           rc = LDAP_INSUFFICIENT_ACCESS;
       Backend              *be;

       /* pedantic */
       assert( op != NULL );
       assert( op->o_conn != NULL );
       assert( edn != NULL );
       assert( access > ACL_NONE );

       be = op->o_bd;
       o_priv = op->o_private;

       if ( !op->o_bd ) {
              op->o_bd = select_backend( edn, 0 );
       }

       if ( target && dn_match( &target->e_nname, edn ) ) {
              e = target;

       } else {
              op->o_private = NULL;
              rc = be_entry_get_rw( op, edn, NULL, entry_at, 0, &e );
              e_priv = op->o_private;
              op->o_private = o_priv;
       } 

       if ( e ) {
              Attribute     *a = NULL;
              int           freeattr = 0;

              if ( entry_at == NULL ) {
                     entry_at = slap_schema.si_ad_entry;
              }

              if ( entry_at == slap_schema.si_ad_entry || entry_at == slap_schema.si_ad_children )
              {
                     if ( access_allowed_mask( op, e, entry_at,
                                   NULL, access, NULL, mask ) == 0 )
                     {
                            rc = LDAP_INSUFFICIENT_ACCESS;

                     } else {
                            rc = LDAP_SUCCESS;
                     }

              } else {
                     a = attr_find( e->e_attrs, entry_at );
                     if ( a == NULL ) {
                            SlapReply     rs = { REP_SEARCH };
                            AttributeName anlist[ 2 ];

                            anlist[ 0 ].an_name = entry_at->ad_cname;
                            anlist[ 0 ].an_desc = entry_at;
                            BER_BVZERO( &anlist[ 1 ].an_name );
                            rs.sr_attrs = anlist;
                     
                            rs.sr_attr_flags = slap_attr_flags( rs.sr_attrs );

                            /* NOTE: backend_operational() is also called
                             * when returning results, so it's supposed
                             * to do no harm to entries */
                            rs.sr_entry = e;
                            rc = backend_operational( op, &rs );

                            if ( rc == LDAP_SUCCESS ) {
                                   if ( rs.sr_operational_attrs ) {
                                          freeattr = 1;
                                          a = rs.sr_operational_attrs;

                                   } else {
                                          rc = LDAP_NO_SUCH_OBJECT;
                                   }
                            }
                     }

                     if ( a ) {
                            if ( access_allowed_mask( op, e, entry_at,
                                          nval, access, NULL, mask ) == 0 )
                            {
                                   rc = LDAP_INSUFFICIENT_ACCESS;
                                   goto freeit;
                            }
                            rc = LDAP_SUCCESS;
                     }
              }
freeit:              if ( e != target ) {
                     op->o_private = e_priv;
                     be_entry_release_r( op, e );
                     op->o_private = o_priv;
              }
              if ( freeattr ) {
                     attr_free( a );
              }
       }

       op->o_bd = be;
       return rc;
}

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int backend_add ( BackendInfo aBackendInfo)

Definition at line 134 of file backend.c.

{
       int rc = 0;

       if ( aBackendInfo->bi_init == NULL ) {
              Debug( LDAP_DEBUG_ANY, "backend_add: "
                     "backend type \"%s\" does not have the (mandatory)init function\n",
                     aBackendInfo->bi_type, 0, 0 );
              return -1;
       }

       rc = aBackendInfo->bi_init(aBackendInfo);
       if ( rc != 0) {
              Debug( LDAP_DEBUG_ANY,
                     "backend_add:  initialization for type \"%s\" failed\n",
                     aBackendInfo->bi_type, 0, 0 );
              return rc;
       }

       (void)backend_init_controls( aBackendInfo );

       /* now add the backend type to the Backend Info List */
       LDAP_STAILQ_INSERT_TAIL( &backendInfo, aBackendInfo, bi_next );
       nBackendInfo++;
       return 0;
}

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int backend_attribute ( Operation op,
Entry target,
struct berval edn,
AttributeDescription entry_at,
BerVarray vals,
slap_access_t  access 
)

Definition at line 1760 of file backend.c.

{
       int                  rc;
       BackendDB *be_orig;
       OpExtraDB     oex;

       oex.oe_db = op->o_bd;
       oex.oe.oe_key = (void *)backend_attribute;
       LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);

       be_orig = op->o_bd;
       op->o_bd = frontendDB;
       rc = frontendDB->be_attribute( op, target, edn,
              entry_at, vals, access );
       op->o_bd = be_orig;
       LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);

       return rc;
}

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Definition at line 940 of file backend.c.

{
       LDAPControl **ctrls = op->o_ctrls;
       rs->sr_err = LDAP_SUCCESS;

       if( ctrls ) {
              for( ; *ctrls != NULL ; ctrls++ ) {
                     int cid;

                     switch ( slap_global_control( op, (*ctrls)->ldctl_oid, &cid ) ) {
                     case LDAP_CONTROL_NOT_FOUND:
                            /* unrecognized control */ 
                            if ( (*ctrls)->ldctl_iscritical ) {
                                   /* should not be reachable */ 
                                   Debug( LDAP_DEBUG_ANY, "backend_check_controls: "
                                          "unrecognized critical control: %s\n",
                                          (*ctrls)->ldctl_oid, 0, 0 );
                                   assert( 0 );
                            } else {
                                   Debug( LDAP_DEBUG_TRACE, "backend_check_controls: "
                                          "unrecognized non-critical control: %s\n",
                                          (*ctrls)->ldctl_oid, 0, 0 );
                            }
                            break;

                     case LDAP_COMPARE_FALSE:
                            if ( !op->o_bd->be_ctrls[cid] && (*ctrls)->ldctl_iscritical ) {
#ifdef SLAP_CONTROL_X_WHATFAILED
                                   if ( get_whatFailed( op ) ) {
                                          char *oids[ 2 ];
                                          oids[ 0 ] = (*ctrls)->ldctl_oid;
                                          oids[ 1 ] = NULL;
                                          slap_ctrl_whatFailed_add( op, rs, oids );
                                   }
#endif
                                   /* RFC 4511 allows unavailableCriticalExtension to be
                                    * returned when the server is unwilling to perform
                                    * an operation extended by a recognized critical
                                    * control.
                                    */
                                   rs->sr_text = "critical control unavailable in context";
                                   rs->sr_err = LDAP_UNAVAILABLE_CRITICAL_EXTENSION;
                                   goto done;
                            }
                            break;

                     case LDAP_COMPARE_TRUE:
                            break;

                     default:
                            /* unreachable */
                            Debug( LDAP_DEBUG_ANY,
                                   "backend_check_controls: unable to check control: %s\n",
                                   (*ctrls)->ldctl_oid, 0, 0 );
                            assert( 0 );

                            rs->sr_text = "unable to check control";
                            rs->sr_err = LDAP_OTHER;
                            goto done;
                     }
              }
       }

#if 0 /* temporarily removed */
       /* check should be generalized */
       if( get_relax(op) && !be_isroot(op)) {
              rs->sr_text = "requires manager authorization";
              rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
       }
#endif

done:;
       return rs->sr_err;
}

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Definition at line 1335 of file backend.c.

{
       rs->sr_err = LDAP_SUCCESS;

       if( op->o_bd->be_chk_referrals ) {
              rs->sr_err = op->o_bd->be_chk_referrals( op, rs );

              if( rs->sr_err != LDAP_SUCCESS && rs->sr_err != LDAP_REFERRAL ) {
                     send_ldap_result( op, rs );
              }
       }

       return rs->sr_err;
}

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int backend_check_restrictions ( Operation op,
SlapReply rs,
struct berval opdata 
)

Definition at line 1018 of file backend.c.

{
       slap_mask_t restrictops;
       slap_mask_t requires;
       slap_mask_t opflag;
       slap_mask_t exopflag = 0;
       slap_ssf_set_t ssfs, *ssf;
       int updateop = 0;
       int starttls = 0;
       int session = 0;

       restrictops = frontendDB->be_restrictops;
       requires = frontendDB->be_requires;
       ssfs = frontendDB->be_ssf_set;
       ssf = &ssfs;

       if ( op->o_bd ) {
              slap_ssf_t *fssf, *bssf;
              int    rc = SLAP_CB_CONTINUE, i;

              if ( op->o_bd->be_chk_controls ) {
                     rc = ( *op->o_bd->be_chk_controls )( op, rs );
              }

              if ( rc == SLAP_CB_CONTINUE ) {
                     rc = backend_check_controls( op, rs );
              }

              if ( rc != LDAP_SUCCESS ) {
                     return rs->sr_err;
              }

              restrictops |= op->o_bd->be_restrictops;
              requires |= op->o_bd->be_requires;
              bssf = &op->o_bd->be_ssf_set.sss_ssf;
              fssf = &ssfs.sss_ssf;
              for ( i=0; i < (int)(sizeof(ssfs)/sizeof(slap_ssf_t)); i++ ) {
                     if ( bssf[i] ) fssf[i] = bssf[i];
              }
       }

       switch( op->o_tag ) {
       case LDAP_REQ_ADD:
              opflag = SLAP_RESTRICT_OP_ADD;
              updateop++;
              break;
       case LDAP_REQ_BIND:
              opflag = SLAP_RESTRICT_OP_BIND;
              session++;
              break;
       case LDAP_REQ_COMPARE:
              opflag = SLAP_RESTRICT_OP_COMPARE;
              break;
       case LDAP_REQ_DELETE:
              updateop++;
              opflag = SLAP_RESTRICT_OP_DELETE;
              break;
       case LDAP_REQ_EXTENDED:
              opflag = SLAP_RESTRICT_OP_EXTENDED;

              if( !opdata ) {
                     /* treat unspecified as a modify */
                     opflag = SLAP_RESTRICT_OP_MODIFY;
                     updateop++;
                     break;
              }

              if( bvmatch( opdata, &slap_EXOP_START_TLS ) ) {
                     session++;
                     starttls++;
                     exopflag = SLAP_RESTRICT_EXOP_START_TLS;
                     break;
              }

              if( bvmatch( opdata, &slap_EXOP_WHOAMI ) ) {
                     exopflag = SLAP_RESTRICT_EXOP_WHOAMI;
                     break;
              }

              if ( bvmatch( opdata, &slap_EXOP_CANCEL ) ) {
                     exopflag = SLAP_RESTRICT_EXOP_CANCEL;
                     break;
              }

              if ( bvmatch( opdata, &slap_EXOP_MODIFY_PASSWD ) ) {
                     exopflag = SLAP_RESTRICT_EXOP_MODIFY_PASSWD;
                     updateop++;
                     break;
              }

              /* treat everything else as a modify */
              opflag = SLAP_RESTRICT_OP_MODIFY;
              updateop++;
              break;

       case LDAP_REQ_MODIFY:
              updateop++;
              opflag = SLAP_RESTRICT_OP_MODIFY;
              break;
       case LDAP_REQ_RENAME:
              updateop++;
              opflag = SLAP_RESTRICT_OP_RENAME;
              break;
       case LDAP_REQ_SEARCH:
              opflag = SLAP_RESTRICT_OP_SEARCH;
              break;
       case LDAP_REQ_UNBIND:
              session++;
              opflag = 0;
              break;
       default:
              rs->sr_text = "restrict operations internal error";
              rs->sr_err = LDAP_OTHER;
              return rs->sr_err;
       }

       if ( !starttls ) {
              /* these checks don't apply to StartTLS */

              rs->sr_err = LDAP_CONFIDENTIALITY_REQUIRED;
              if( op->o_transport_ssf < ssf->sss_transport ) {
                     rs->sr_text = op->o_transport_ssf
                            ? "stronger transport confidentiality required"
                            : "transport confidentiality required";
                     return rs->sr_err;
              }

              if( op->o_tls_ssf < ssf->sss_tls ) {
                     rs->sr_text = op->o_tls_ssf
                            ? "stronger TLS confidentiality required"
                            : "TLS confidentiality required";
                     return rs->sr_err;
              }


              if( op->o_tag == LDAP_REQ_BIND && opdata == NULL ) {
                     /* simple bind specific check */
                     if( op->o_ssf < ssf->sss_simple_bind ) {
                            rs->sr_text = op->o_ssf
                                   ? "stronger confidentiality required"
                                   : "confidentiality required";
                            return rs->sr_err;
                     }
              }

              if( op->o_tag != LDAP_REQ_BIND || opdata == NULL ) {
                     /* these checks don't apply to SASL bind */

                     if( op->o_sasl_ssf < ssf->sss_sasl ) {
                            rs->sr_text = op->o_sasl_ssf
                                   ? "stronger SASL confidentiality required"
                                   : "SASL confidentiality required";
                            return rs->sr_err;
                     }

                     if( op->o_ssf < ssf->sss_ssf ) {
                            rs->sr_text = op->o_ssf
                                   ? "stronger confidentiality required"
                                   : "confidentiality required";
                            return rs->sr_err;
                     }
              }

              if( updateop ) {
                     if( op->o_transport_ssf < ssf->sss_update_transport ) {
                            rs->sr_text = op->o_transport_ssf
                                   ? "stronger transport confidentiality required for update"
                                   : "transport confidentiality required for update";
                            return rs->sr_err;
                     }

                     if( op->o_tls_ssf < ssf->sss_update_tls ) {
                            rs->sr_text = op->o_tls_ssf
                                   ? "stronger TLS confidentiality required for update"
                                   : "TLS confidentiality required for update";
                            return rs->sr_err;
                     }

                     if( op->o_sasl_ssf < ssf->sss_update_sasl ) {
                            rs->sr_text = op->o_sasl_ssf
                                   ? "stronger SASL confidentiality required for update"
                                   : "SASL confidentiality required for update";
                            return rs->sr_err;
                     }

                     if( op->o_ssf < ssf->sss_update_ssf ) {
                            rs->sr_text = op->o_ssf
                                   ? "stronger confidentiality required for update"
                                   : "confidentiality required for update";
                            return rs->sr_err;
                     }

                     if( !( global_allows & SLAP_ALLOW_UPDATE_ANON ) &&
                            BER_BVISEMPTY( &op->o_ndn ) )
                     {
                            rs->sr_text = "modifications require authentication";
                            rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
                            return rs->sr_err;
                     }

#ifdef SLAP_X_LISTENER_MOD
                     if ( op->o_conn->c_listener &&
                            ! ( op->o_conn->c_listener->sl_perms & ( !BER_BVISEMPTY( &op->o_ndn )
                                   ? (S_IWUSR|S_IWOTH) : S_IWOTH ) ) )
                     {
                            /* no "w" mode means readonly */
                            rs->sr_text = "modifications not allowed on this listener";
                            rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
                            return rs->sr_err;
                     }
#endif /* SLAP_X_LISTENER_MOD */
              }
       }

       if ( !session ) {
              /* these checks don't apply to Bind, StartTLS, or Unbind */

              if( requires & SLAP_REQUIRE_STRONG ) {
                     /* should check mechanism */
                     if( ( op->o_transport_ssf < ssf->sss_transport
                            && op->o_authtype == LDAP_AUTH_SIMPLE )
                            || BER_BVISEMPTY( &op->o_dn ) )
                     {
                            rs->sr_text = "strong(er) authentication required";
                            rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
                            return rs->sr_err;
                     }
              }

              if( requires & SLAP_REQUIRE_SASL ) {
                     if( op->o_authtype != LDAP_AUTH_SASL || BER_BVISEMPTY( &op->o_dn ) ) {
                            rs->sr_text = "SASL authentication required";
                            rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
                            return rs->sr_err;
                     }
              }
                     
              if( requires & SLAP_REQUIRE_AUTHC ) {
                     if( BER_BVISEMPTY( &op->o_dn ) ) {
                            rs->sr_text = "authentication required";
                            rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
                            return rs->sr_err;
                     }
              }

              if( requires & SLAP_REQUIRE_BIND ) {
                     int version;
                     ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
                     version = op->o_conn->c_protocol;
                     ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );

                     if( !version ) {
                            /* no bind has occurred */
                            rs->sr_text = "BIND required";
                            rs->sr_err = LDAP_OPERATIONS_ERROR;
                            return rs->sr_err;
                     }
              }

              if( requires & SLAP_REQUIRE_LDAP_V3 ) {
                     if( op->o_protocol < LDAP_VERSION3 ) {
                            /* no bind has occurred */
                            rs->sr_text = "operation restricted to LDAPv3 clients";
                            rs->sr_err = LDAP_OPERATIONS_ERROR;
                            return rs->sr_err;
                     }
              }

#ifdef SLAP_X_LISTENER_MOD
              if ( !starttls && BER_BVISEMPTY( &op->o_dn ) ) {
                     if ( op->o_conn->c_listener &&
                            !( op->o_conn->c_listener->sl_perms & S_IXOTH ))
              {
                            /* no "x" mode means bind required */
                            rs->sr_text = "bind required on this listener";
                            rs->sr_err = LDAP_STRONG_AUTH_REQUIRED;
                            return rs->sr_err;
                     }
              }

              if ( !starttls && !updateop ) {
                     if ( op->o_conn->c_listener &&
                            !( op->o_conn->c_listener->sl_perms &
                                   ( !BER_BVISEMPTY( &op->o_dn )
                                          ? (S_IRUSR|S_IROTH) : S_IROTH )))
                     {
                            /* no "r" mode means no read */
                            rs->sr_text = "read not allowed on this listener";
                            rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
                            return rs->sr_err;
                     }
              }
#endif /* SLAP_X_LISTENER_MOD */

       }

       if( ( restrictops & opflag )
                     || ( exopflag && ( restrictops & exopflag ) )
                     || (( restrictops & SLAP_RESTRICT_READONLY ) && updateop )) {
              if( ( restrictops & SLAP_RESTRICT_OP_MASK) == SLAP_RESTRICT_OP_READS ) {
                     rs->sr_text = "read operations restricted";
              } else if ( restrictops & exopflag ) {
                     rs->sr_text = "extended operation restricted";
              } else {
                     rs->sr_text = "operation restricted";
              }
              rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
              return rs->sr_err;
       }

       rs->sr_err = LDAP_SUCCESS;
       return rs->sr_err;
}

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Definition at line 925 of file backend.c.

{
       BackendDB *be;

       LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
              if ( be->be_connection_destroy ) {
                     be->be_connection_destroy( be, conn);
              }
       }

       return 0;
}

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Definition at line 910 of file backend.c.

{
       BackendDB *be;

       LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
              if ( be->be_connection_init ) {
                     be->be_connection_init( be, conn );
              }
       }

       return 0;
}

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BackendDB* backend_db_init ( const char *  type,
BackendDB b0,
int  idx,
ConfigReply *  cr 
)

Definition at line 577 of file backend.c.

{
       BackendInfo *bi = backend_info(type);
       BackendDB *be = b0;
       int    rc = 0;

       if( bi == NULL ) {
              fprintf( stderr, "Unrecognized database type (%s)\n", type );
              return NULL;
       }

       /* If be is provided, treat it as private. Otherwise allocate
        * one and add it to the global list.
        */
       if ( !be ) {
              be = ch_calloc( 1, sizeof(Backend) );
              /* Just append */
              if ( idx >= nbackends )
                     idx = -1;
              nbackends++;
              backend_db_insert( be, idx );
       }

       be->bd_info = bi;
       be->bd_self = be;

       be->be_def_limit = frontendDB->be_def_limit;
       be->be_dfltaccess = frontendDB->be_dfltaccess;

       be->be_restrictops = frontendDB->be_restrictops;
       be->be_requires = frontendDB->be_requires;
       be->be_ssf_set = frontendDB->be_ssf_set;

       ldap_pvt_thread_mutex_init( &be->be_pcl_mutex );

       /* assign a default depth limit for alias deref */
       be->be_max_deref_depth = SLAPD_DEFAULT_MAXDEREFDEPTH; 

       if ( bi->bi_db_init ) {
              rc = bi->bi_db_init( be, cr );
       }

       if ( rc != 0 ) {
              fprintf( stderr, "database init failed (%s)\n", type );
              /* If we created and linked this be, remove it and free it */
              if ( !b0 ) {
                     LDAP_STAILQ_REMOVE(&backendDB, be, BackendDB, be_next);
                     ldap_pvt_thread_mutex_destroy( &be->be_pcl_mutex );
                     ch_free( be );
                     be = NULL;
                     nbackends--;
              }
       } else {
              if ( !bi->bi_nDB ) {
                     backend_init_controls( bi );
              }
              bi->bi_nDB++;
       }
       return( be );
}

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void backend_db_insert ( BackendDB be,
int  idx 
)

Definition at line 543 of file backend.c.

{
       /* If idx < 0, just add to end of list */
       if ( idx < 0 ) {
              LDAP_STAILQ_INSERT_TAIL(&backendDB, be, be_next);
       } else if ( idx == 0 ) {
              LDAP_STAILQ_INSERT_HEAD(&backendDB, be, be_next);
       } else {
              int i;
              BackendDB *b2;

              b2 = LDAP_STAILQ_FIRST(&backendDB);
              idx--;
              for (i=0; i<idx; i++) {
                     b2 = LDAP_STAILQ_NEXT(b2, be_next);
              }
              LDAP_STAILQ_INSERT_AFTER(&backendDB, b2, be, be_next);
       }
}

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void backend_db_move ( BackendDB be,
int  idx 
)

Definition at line 567 of file backend.c.

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Definition at line 484 of file backend.c.

{
       BackendDB *bd;
       BackendInfo *bi;

       /* destroy each backend database */
       while (( bd = LDAP_STAILQ_FIRST(&backendDB))) {
              backend_destroy_one( bd, 1 );
       }

       /* destroy each backend type */
       LDAP_STAILQ_FOREACH( bi, &backendInfo, bi_next ) {
              if( bi->bi_destroy ) {
                     bi->bi_destroy( bi );
              }
       }

       nBackendInfo = 0;
       LDAP_STAILQ_INIT(&backendInfo);

       /* destroy frontend database */
       bd = frontendDB;
       if ( bd ) {
              if ( bd->bd_info->bi_db_destroy ) {
                     bd->bd_info->bi_db_destroy( bd, NULL );
              }
              ber_bvarray_free( bd->be_suffix );
              ber_bvarray_free( bd->be_nsuffix );
              if ( !BER_BVISNULL( &bd->be_rootdn ) ) {
                     free( bd->be_rootdn.bv_val );
              }
              if ( !BER_BVISNULL( &bd->be_rootndn ) ) {
                     free( bd->be_rootndn.bv_val );
              }
              if ( !BER_BVISNULL( &bd->be_rootpw ) ) {
                     free( bd->be_rootpw.bv_val );
              }
              acl_destroy( bd->be_acl );
              frontendDB = NULL;
       }

       return 0;
}

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void backend_destroy_one ( BackendDB bd,
int  dynamic 
)

Definition at line 442 of file backend.c.

{
       if ( dynamic ) {
              LDAP_STAILQ_REMOVE(&backendDB, bd, BackendDB, be_next );
       }

       if ( bd->be_syncinfo ) {
              syncinfo_free( bd->be_syncinfo, 1 );
       }

       backend_stopdown_one( bd );

       ber_bvarray_free( bd->be_suffix );
       ber_bvarray_free( bd->be_nsuffix );
       if ( !BER_BVISNULL( &bd->be_rootdn ) ) {
              free( bd->be_rootdn.bv_val );
       }
       if ( !BER_BVISNULL( &bd->be_rootndn ) ) {
              free( bd->be_rootndn.bv_val );
       }
       if ( !BER_BVISNULL( &bd->be_rootpw ) ) {
              free( bd->be_rootpw.bv_val );
       }
       acl_destroy( bd->be_acl );
       limits_destroy( bd->be_limits );
       if ( bd->be_extra_anlist ) {
              anlist_free( bd->be_extra_anlist, 1, NULL );
       }
       if ( !BER_BVISNULL( &bd->be_update_ndn ) ) {
              ch_free( bd->be_update_ndn.bv_val );
       }
       if ( bd->be_update_refs ) {
              ber_bvarray_free( bd->be_update_refs );
       }

       ldap_pvt_thread_mutex_destroy( &bd->be_pcl_mutex );

       if ( dynamic ) {
              free( bd );
       }
}

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int backend_group ( Operation op,
Entry target,
struct berval gr_ndn,
struct berval op_ndn,
ObjectClass group_oc,
AttributeDescription group_at 
)

Definition at line 1595 of file backend.c.

{
       int                  rc;
       BackendDB *be_orig;
       OpExtraDB     oex;

       if ( op->o_abandon ) {
              return SLAPD_ABANDON;
       }

       oex.oe_db = op->o_bd;
       oex.oe.oe_key = (void *)backend_group;
       LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);

       be_orig = op->o_bd;
       op->o_bd = frontendDB;
       rc = frontendDB->be_group( op, target, gr_ndn,
              op_ndn, group_oc, group_at );
       op->o_bd = be_orig;
       LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);

       return rc;
}

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BackendInfo* backend_info ( const char *  type)

Definition at line 528 of file backend.c.

{
       BackendInfo *bi;

       /* search for the backend type */
       LDAP_STAILQ_FOREACH(bi,&backendInfo,bi_next) {
              if( strcasecmp(bi->bi_type, type) == 0 ) {
                     return bi;
              }
       }

       return NULL;
}

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Definition at line 81 of file backend.c.

{
       int rc = -1;
       BackendInfo *bi;

       if((nBackendInfo != 0) || !LDAP_STAILQ_EMPTY(&backendInfo)) {
              /* already initialized */
              Debug( LDAP_DEBUG_ANY,
                     "backend_init: already initialized\n", 0, 0, 0 );
              return -1;
       }

       for( bi=slap_binfo; bi->bi_type != NULL; bi++,nBackendInfo++ ) {
              assert( bi->bi_init != 0 );

              rc = bi->bi_init( bi );

              if(rc != 0) {
                     Debug( LDAP_DEBUG_ANY,
                            "backend_init: initialized for type \"%s\"\n",
                            bi->bi_type, 0, 0 );
                     /* destroy those we've already inited */
                     for( nBackendInfo--;
                            nBackendInfo >= 0 ;
                            nBackendInfo-- )
                     { 
                            if ( slap_binfo[nBackendInfo].bi_destroy ) {
                                   slap_binfo[nBackendInfo].bi_destroy(
                                          &slap_binfo[nBackendInfo] );
                            }
                     }
                     return rc;
              }

              LDAP_STAILQ_INSERT_TAIL(&backendInfo, bi, bi_next);
       }

       if ( nBackendInfo > 0) {
              return 0;
       }

#ifdef SLAPD_MODULES 
       return 0;
#else

       Debug( LDAP_DEBUG_ANY,
              "backend_init: failed\n",
              0, 0, 0 );

       return rc;
#endif /* SLAPD_MODULES */
}

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static int backend_init_controls ( BackendInfo bi) [static]

Definition at line 56 of file backend.c.

{
       if ( bi->bi_controls ) {
              int    i;

              for ( i = 0; bi->bi_controls[ i ]; i++ ) {
                     int    cid;

                     if ( slap_find_control_id( bi->bi_controls[ i ], &cid )
                                   == LDAP_CONTROL_NOT_FOUND )
                     {
                            if ( !( slapMode & SLAP_TOOL_MODE ) ) {
                                   assert( 0 );
                            }

                            return -1;
                     }

                     bi->bi_ctrls[ cid ] = 1;
              }
       }

       return 0;
}

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int backend_num ( Backend be)

Definition at line 333 of file backend.c.

{
       int i = 0;
       BackendDB *b2;

       if( be == NULL ) return -1;

       LDAP_STAILQ_FOREACH( b2, &backendDB, be_next ) {
              if( be == b2 ) return i;
              i++;
       }
       return -1;
}

Definition at line 1954 of file backend.c.

{
       int rc;
       BackendDB *be_orig;
       OpExtraDB     oex;

       oex.oe_db = op->o_bd;
       oex.oe.oe_key = (void *)backend_operational;
       LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex.oe, oe_next);

       /* Moved this into the frontend so global overlays are called */

       be_orig = op->o_bd;
       op->o_bd = frontendDB;
       rc = frontendDB->be_operational( op, rs );
       op->o_bd = be_orig;
       LDAP_SLIST_REMOVE(&op->o_extra, &oex.oe, OpExtra, oe_next);

       return rc;
}

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static int backend_set_controls ( BackendDB be) [static]

Definition at line 162 of file backend.c.

{
       BackendInfo   *bi = be->bd_info;

       /* back-relay takes care of itself; so may do other */
       if ( overlay_is_over( be ) ) {
              bi = ((slap_overinfo *)be->bd_info->bi_private)->oi_orig;
       }

       if ( bi->bi_controls ) {
              if ( be->be_ctrls[ SLAP_MAX_CIDS ] == 0 ) {
                     AC_MEMCPY( be->be_ctrls, bi->bi_ctrls,
                                   sizeof( be->be_ctrls ) );
                     be->be_ctrls[ SLAP_MAX_CIDS ] = 1;
                     
              } else {
                     int    i;
                     
                     for ( i = 0; i < SLAP_MAX_CIDS; i++ ) {
                            if ( bi->bi_ctrls[ i ] ) {
                                   be->be_ctrls[ i ] = bi->bi_ctrls[ i ];
                            }
                     }
              }

       }

       return 0;
}

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Definition at line 347 of file backend.c.

{
       int rc = 0;
       BackendInfo *bi;

       if( be != NULL ) {
              /* shutdown a specific backend database */

              if ( be->bd_info->bi_nDB == 0 ) {
                     /* no database of this type, we never opened it */
                     return 0;
              }

              if ( be->bd_info->bi_db_close ) {
                     rc = be->bd_info->bi_db_close( be, NULL );
                     if ( rc ) return rc;
              }

              if( be->bd_info->bi_close ) {
                     rc = be->bd_info->bi_close( be->bd_info );
                     if ( rc ) return rc;
              }

              return 0;
       }

       /* close each backend database */
       LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
              if ( be->bd_info->bi_db_close ) {
                     be->bd_info->bi_db_close( be, NULL );
              }

              if(rc != 0) {
                     Debug( LDAP_DEBUG_ANY,
                            "backend_close: bi_db_close %s failed!\n",
                            be->be_type, 0, 0 );
              }
       }

       /* close each backend type */
       LDAP_STAILQ_FOREACH( bi, &backendInfo, bi_next ) {
              if( bi->bi_nDB == 0 ) {
                     /* no database of this type */
                     continue;
              }

              if( bi->bi_close ) {
                     bi->bi_close( bi );
              }
       }

       /* close frontend, if required */
       if ( frontendDB->bd_info->bi_db_close ) {
              rc = frontendDB->bd_info->bi_db_close ( frontendDB, NULL );
              if ( rc != 0 ) {
                     Debug( LDAP_DEBUG_ANY,
                            "backend_startup: bi_db_close(frontend) failed! (%d)\n",
                            rc, 0, 0 );
              }
       }

       return 0;
}

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Definition at line 251 of file backend.c.

{
       int i;
       int rc = 0;
       BackendInfo *bi;
       ConfigReply cr={0, ""};

       if( ! ( nBackendDB > 0 ) ) {
              /* no databases */
              Debug( LDAP_DEBUG_ANY,
                     "backend_startup: %d databases to startup.\n",
                     nBackendDB, 0, 0 );
              return 1;
       }

       if(be != NULL) {
              if ( be->bd_info->bi_open ) {
                     rc = be->bd_info->bi_open( be->bd_info );
                     if ( rc != 0 ) {
                            Debug( LDAP_DEBUG_ANY,
                                   "backend_startup: bi_open failed!\n",
                                   0, 0, 0 );

                            return rc;
                     }
              }

              return backend_startup_one( be, &cr );
       }

       /* open frontend, if required */
       if ( frontendDB->bd_info->bi_db_open ) {
              rc = frontendDB->bd_info->bi_db_open( frontendDB, &cr );
              if ( rc != 0 ) {
                     Debug( LDAP_DEBUG_ANY,
                            "backend_startup: bi_db_open(frontend) failed! (%d)\n",
                            rc, 0, 0 );
                     return rc;
              }
       }

       /* open each backend type */
       i = -1;
       LDAP_STAILQ_FOREACH(bi, &backendInfo, bi_next) {
              i++;
              if( bi->bi_nDB == 0) {
                     /* no database of this type, don't open */
                     continue;
              }

              if( bi->bi_open ) {
                     rc = bi->bi_open( bi );
                     if ( rc != 0 ) {
                            Debug( LDAP_DEBUG_ANY,
                                   "backend_startup: bi_open %d (%s) failed!\n",
                                   i, bi->bi_type, 0 );
                            return rc;
                     }
              }

              (void)backend_init_controls( bi );
       }

       /* open each backend database */
       i = -1;
       LDAP_STAILQ_FOREACH(be, &backendDB, be_next) {
              i++;
              if ( be->be_suffix == NULL ) {
                     Debug( LDAP_DEBUG_ANY,
                            "backend_startup: warning, database %d (%s) "
                            "has no suffix\n",
                            i, be->bd_info->bi_type, 0 );
              }

              rc = backend_startup_one( be, &cr );

              if ( rc ) return rc;
       }

       return rc;
}

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int backend_startup_one ( Backend be,
ConfigReply *  cr 
)

Definition at line 193 of file backend.c.

{
       int           rc = 0;

       assert( be != NULL );

       be->be_pending_csn_list = (struct be_pcl *)
              ch_calloc( 1, sizeof( struct be_pcl ) );

       LDAP_TAILQ_INIT( be->be_pending_csn_list );

       Debug( LDAP_DEBUG_TRACE,
              "backend_startup_one: starting \"%s\"\n",
              be->be_suffix ? be->be_suffix[0].bv_val : "(unknown)",
              0, 0 );

       /* set database controls */
       (void)backend_set_controls( be );

#if 0
       if ( !BER_BVISEMPTY( &be->be_rootndn )
              && select_backend( &be->be_rootndn, 0 ) == be
              && BER_BVISNULL( &be->be_rootpw ) )
       {
              /* warning: if rootdn entry is created,
               * it can take rootdn privileges;
               * set empty rootpw to prevent */
       }
#endif

       if ( be->bd_info->bi_db_open ) {
              rc = be->bd_info->bi_db_open( be, cr );
              if ( rc == 0 ) {
                     (void)backend_set_controls( be );

              } else {
                     char *type = be->bd_info->bi_type;
                     char *suffix = "(null)";

                     if ( overlay_is_over( be ) ) {
                            slap_overinfo *oi = (slap_overinfo *)be->bd_info->bi_private;
                            type = oi->oi_orig->bi_type;
                     }

                     if ( be->be_suffix != NULL && !BER_BVISNULL( &be->be_suffix[0] ) ) {
                            suffix = be->be_suffix[0].bv_val;
                     }

                     Debug( LDAP_DEBUG_ANY,
                            "backend_startup_one (type=%s, suffix=\"%s\"): "
                            "bi_db_open failed! (%d)\n",
                            type, suffix, rc );
              }
       }

       return rc;
}

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Definition at line 421 of file backend.c.

{
       if ( bd->be_pending_csn_list ) {
              struct slap_csn_entry *csne;
              csne = LDAP_TAILQ_FIRST( bd->be_pending_csn_list );
              while ( csne ) {
                     struct slap_csn_entry *tmp_csne = csne;

                     LDAP_TAILQ_REMOVE( bd->be_pending_csn_list, csne, ce_csn_link );
                     ch_free( csne->ce_csn.bv_val );
                     csne = LDAP_TAILQ_NEXT( csne, ce_csn_link );
                     ch_free( tmp_csne );
              }
              ch_free( bd->be_pending_csn_list );
       }

       if ( bd->bd_info->bi_db_destroy ) {
              bd->bd_info->bi_db_destroy( bd, NULL );
       }
}

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Definition at line 1979 of file backend.c.

{
       return be->bd_info->bi_tool_entry_first_x( be,
              NULL, LDAP_SCOPE_DEFAULT, NULL );
}

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int backend_unbind ( Operation op,
SlapReply rs 
)

Definition at line 895 of file backend.c.

{
       BackendDB *be;

       LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
              if ( be->be_unbind ) {
                     op->o_bd = be;
                     be->be_unbind( op, rs );
              }
       }

       return 0;
}

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Definition at line 643 of file backend.c.

{
       BackendDB *be;

       LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
              if ( be->bd_info->bi_db_close ) {
                     be->bd_info->bi_db_close( be, NULL );
              }
       }

       if ( frontendDB->bd_info->bi_db_close ) {
              frontendDB->bd_info->bi_db_close( frontendDB, NULL );
       }

}
int be_entry_get_rw ( Operation op,
struct berval ndn,
ObjectClass oc,
AttributeDescription at,
int  rw,
Entry **  e 
)

Definition at line 1351 of file backend.c.

{
       *e = NULL;

       if ( op->o_bd == NULL ) {
              return LDAP_NO_SUCH_OBJECT;
       }

       if ( op->o_bd->be_fetch ) {
              return op->o_bd->be_fetch( op, ndn, oc, at, rw, e );
       }

       return LDAP_UNWILLING_TO_PERFORM;
}

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int be_entry_release_rw ( Operation op,
Entry e,
int  rw 
)

Definition at line 879 of file backend.c.

{
       if ( op->o_bd->be_release ) {
              /* free and release entry from backend */
              return op->o_bd->be_release( op, e, rw );
       } else {
              /* free entry */
              entry_free( e );
              return 0;
       }
}

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int be_isroot ( Operation op)

Definition at line 792 of file backend.c.

{
       return be_isroot_dn( op->o_bd, &op->o_ndn );
}

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int be_isroot_dn ( Backend be,
struct berval ndn 
)

Definition at line 749 of file backend.c.

{
       if ( BER_BVISEMPTY( ndn ) || BER_BVISEMPTY( &be->be_rootndn ) ) {
              return 0;
       }

       return dn_match( &be->be_rootndn, ndn );
}

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Definition at line 798 of file backend.c.

{
       return be_rootdn_bind( op, NULL ) == LDAP_SUCCESS;
}

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int be_issubordinate ( Backend be,
struct berval bvsubordinate 
)

Definition at line 729 of file backend.c.

{
       int    i;

       if ( be->be_nsuffix == NULL ) {
              return 0;
       }

       for ( i = 0; !BER_BVISNULL( &be->be_nsuffix[i] ); i++ ) {
              if ( dnIsSuffix( bvsubordinate, &be->be_nsuffix[i] ) ) {
                     return 1;
              }
       }

       return 0;
}

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int be_issuffix ( Backend be,
struct berval bvsuffix 
)

Definition at line 709 of file backend.c.

{
       int    i;

       if ( be->be_nsuffix == NULL ) {
              return 0;
       }

       for ( i = 0; !BER_BVISNULL( &be->be_nsuffix[i] ); i++ ) {
              if ( bvmatch( &be->be_nsuffix[i], bvsuffix ) ) {
                     return 1;
              }
       }

       return 0;
}

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int be_isupdate_dn ( Backend be,
struct berval ndn 
)

Definition at line 776 of file backend.c.

{
       if ( BER_BVISEMPTY( ndn ) || BER_BVISEMPTY( &be->be_update_ndn ) ) {
              return 0;
       }

       return dn_match( &be->be_update_ndn, ndn );
}

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struct berval* be_root_dn ( Backend be) [read]

Definition at line 786 of file backend.c.

{
       return &be->be_rootdn;
}

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int be_rootdn_bind ( Operation op,
SlapReply rs 
)

Definition at line 816 of file backend.c.

{
       int           rc;
#ifdef SLAPD_SPASSWD
       void   *old_authctx = NULL;
#endif

       assert( op->o_tag == LDAP_REQ_BIND );
       assert( op->orb_method == LDAP_AUTH_SIMPLE );

       if ( !be_isroot_dn( op->o_bd, &op->o_req_ndn ) ) {
              return SLAP_CB_CONTINUE;
       }

       if ( BER_BVISNULL( &op->o_bd->be_rootpw ) ) {
              /* give the database a chance */
              return SLAP_CB_CONTINUE;
       }

       if ( BER_BVISEMPTY( &op->o_bd->be_rootpw ) ) {
              /* rootdn bind explicitly disallowed */
              rc = LDAP_INVALID_CREDENTIALS;
              if ( rs ) {
                     goto send_result;
              }

              return rc;
       }

#ifdef SLAPD_SPASSWD
       ldap_pvt_thread_pool_setkey( op->o_threadctx, (void *)slap_sasl_bind,
              op->o_conn->c_sasl_authctx, 0, &old_authctx, NULL );
#endif

       rc = lutil_passwd( &op->o_bd->be_rootpw, &op->orb_cred, NULL, NULL );

#ifdef SLAPD_SPASSWD
       ldap_pvt_thread_pool_setkey( op->o_threadctx, (void *)slap_sasl_bind,
              old_authctx, 0, NULL, NULL );
#endif

       rc = ( rc == 0 ? LDAP_SUCCESS : LDAP_INVALID_CREDENTIALS );
       if ( rs ) {
send_result:;
              rs->sr_err = rc;

              Debug( LDAP_DEBUG_TRACE, "%s: rootdn=\"%s\" bind%s\n", 
                     op->o_log_prefix, op->o_bd->be_rootdn.bv_val,
                     rc == LDAP_SUCCESS ? " succeeded" : " failed" );

              if ( rc == LDAP_SUCCESS ) {
                     /* Set to the pretty rootdn */
                     ber_dupbv( &op->orb_edn, &op->o_bd->be_rootdn );

              } else {
                     send_ldap_result( op, rs );
              }
       }

       return rc;
}

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Definition at line 766 of file backend.c.

{
       /* This assumes that all internal ops (connid <= -1000) on a syncrepl
        * database are syncrepl operations.
        */
       return ( ( SLAP_SYNC_SHADOW( op->o_bd ) && SLAPD_SYNC_IS_SYNCCONN( op->o_connid ) ) ||
              ( SLAP_SHADOW( op->o_bd ) && be_isupdate_dn( op->o_bd, &op->o_ndn ) ) );
}

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Definition at line 759 of file backend.c.

{
       return ( SLAP_SLURP_SHADOW( op->o_bd ) &&
              be_isupdate_dn( op->o_bd, &op->o_ndn ) );
}

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int fe_acl_attribute ( Operation op,
Entry target,
struct berval edn,
AttributeDescription entry_at,
BerVarray vals,
slap_access_t  access 
)

Definition at line 1626 of file backend.c.

{
       Entry                *e = NULL;
       void                 *o_priv = op->o_private, *e_priv = NULL;
       Attribute            *a = NULL;
       int                  freeattr = 0, i, j, rc = LDAP_SUCCESS;
       AccessControlState   acl_state = ACL_STATE_INIT;
       Backend                     *be = op->o_bd;
       OpExtra              *oex;

       LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
              if ( oex->oe_key == (void *)backend_attribute )
                     break;
       }

       if ( oex && ((OpExtraDB *)oex)->oe_db )
              op->o_bd = ((OpExtraDB *)oex)->oe_db;

       if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
              op->o_bd = select_backend( edn, 0 );

       if ( target && dn_match( &target->e_nname, edn ) ) {
              e = target;

       } else {
              op->o_private = NULL;
              rc = be_entry_get_rw( op, edn, NULL, entry_at, 0, &e );
              e_priv = op->o_private;
              op->o_private = o_priv;
       } 

       if ( e ) {
              if ( entry_at == slap_schema.si_ad_entry || entry_at == slap_schema.si_ad_children ) {
                     assert( vals == NULL );

                     rc = LDAP_SUCCESS;
                     if ( op->o_conn && access > ACL_NONE &&
                            access_allowed( op, e, entry_at, NULL,
                                          access, &acl_state ) == 0 )
                     {
                            rc = LDAP_INSUFFICIENT_ACCESS;
                     }
                     goto freeit;
              }

              a = attr_find( e->e_attrs, entry_at );
              if ( a == NULL ) {
                     SlapReply     rs = { REP_SEARCH };
                     AttributeName anlist[ 2 ];

                     anlist[ 0 ].an_name = entry_at->ad_cname;
                     anlist[ 0 ].an_desc = entry_at;
                     BER_BVZERO( &anlist[ 1 ].an_name );
                     rs.sr_attrs = anlist;
                     
                     /* NOTE: backend_operational() is also called
                      * when returning results, so it's supposed
                      * to do no harm to entries */
                     rs.sr_entry = e;
                     rc = backend_operational( op, &rs );

                     if ( rc == LDAP_SUCCESS ) {
                            if ( rs.sr_operational_attrs ) {
                                   freeattr = 1;
                                   a = rs.sr_operational_attrs;

                            } else {
                                   rc = LDAP_NO_SUCH_ATTRIBUTE;
                            }
                     }
              }

              if ( a ) {
                     BerVarray v;

                     if ( op->o_conn && access > ACL_NONE &&
                            access_allowed( op, e, entry_at, NULL,
                                          access, &acl_state ) == 0 )
                     {
                            rc = LDAP_INSUFFICIENT_ACCESS;
                            goto freeit;
                     }

                     i = a->a_numvals;
                     v = op->o_tmpalloc( sizeof(struct berval) * ( i + 1 ),
                            op->o_tmpmemctx );
                     for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ )
                     {
                            if ( op->o_conn && access > ACL_NONE && 
                                   access_allowed( op, e, entry_at,
                                                 &a->a_nvals[i],
                                                 access,
                                                 &acl_state ) == 0 )
                            {
                                   continue;
                            }
                            ber_dupbv_x( &v[j], &a->a_nvals[i],
                                          op->o_tmpmemctx );
                            if ( !BER_BVISNULL( &v[j] ) ) {
                                   j++;
                            }
                     }
                     if ( j == 0 ) {
                            op->o_tmpfree( v, op->o_tmpmemctx );
                            *vals = NULL;
                            rc = LDAP_INSUFFICIENT_ACCESS;

                     } else {
                            BER_BVZERO( &v[j] );
                            *vals = v;
                            rc = LDAP_SUCCESS;
                     }
              }
freeit:              if ( e != target ) {
                     op->o_private = e_priv;
                     be_entry_release_r( op, e );
                     op->o_private = o_priv;
              }
              if ( freeattr ) {
                     attr_free( a );
              }
       }

       op->o_bd = be;
       return rc;
}

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int fe_acl_group ( Operation op,
Entry target,
struct berval gr_ndn,
struct berval op_ndn,
ObjectClass group_oc,
AttributeDescription group_at 
)

Definition at line 1373 of file backend.c.

{
       Entry *e;
       void *o_priv = op->o_private, *e_priv = NULL;
       Attribute *a;
       int rc;
       GroupAssertion *g;
       Backend *be = op->o_bd;
       OpExtra              *oex;

       LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
              if ( oex->oe_key == (void *)backend_group )
                     break;
       }

       if ( oex && ((OpExtraDB *)oex)->oe_db )
              op->o_bd = ((OpExtraDB *)oex)->oe_db;

       if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
              op->o_bd = select_backend( gr_ndn, 0 );

       for ( g = op->o_groups; g; g = g->ga_next ) {
              if ( g->ga_be != op->o_bd || g->ga_oc != group_oc ||
                     g->ga_at != group_at || g->ga_len != gr_ndn->bv_len )
              {
                     continue;
              }
              if ( strcmp( g->ga_ndn, gr_ndn->bv_val ) == 0 ) {
                     break;
              }
       }

       if ( g ) {
              rc = g->ga_res;
              goto done;
       }

       if ( target && dn_match( &target->e_nname, gr_ndn ) ) {
              e = target;
              rc = 0;

       } else {
              op->o_private = NULL;
              rc = be_entry_get_rw( op, gr_ndn, group_oc, group_at, 0, &e );
              e_priv = op->o_private;
              op->o_private = o_priv;
       }

       if ( e ) {
              a = attr_find( e->e_attrs, group_at );
              if ( a ) {
                     /* If the attribute is a subtype of labeledURI,
                      * treat this as a dynamic group ala groupOfURLs
                      */
                     if ( is_at_subtype( group_at->ad_type,
                            slap_schema.si_ad_labeledURI->ad_type ) )
                     {
                            int i;
                            LDAPURLDesc *ludp;
                            struct berval bv, nbase;
                            Filter *filter;
                            Entry *user = NULL;
                            void *user_priv = NULL;
                            Backend *b2 = op->o_bd;

                            if ( target && dn_match( &target->e_nname, op_ndn ) ) {
                                   user = target;
                            }
                            
                            rc = LDAP_COMPARE_FALSE;
                            for ( i = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) {
                                   if ( ldap_url_parse( a->a_vals[i].bv_val, &ludp ) !=
                                          LDAP_URL_SUCCESS )
                                   {
                                          continue;
                                   }

                                   BER_BVZERO( &nbase );

                                   /* host, attrs and extensions parts must be empty */
                                   if ( ( ludp->lud_host && *ludp->lud_host )
                                          || ludp->lud_attrs
                                          || ludp->lud_exts )
                                   {
                                          goto loopit;
                                   }

                                   ber_str2bv( ludp->lud_dn, 0, 0, &bv );
                                   if ( dnNormalize( 0, NULL, NULL, &bv, &nbase,
                                          op->o_tmpmemctx ) != LDAP_SUCCESS )
                                   {
                                          goto loopit;
                                   }

                                   switch ( ludp->lud_scope ) {
                                   case LDAP_SCOPE_BASE:
                                          if ( !dn_match( &nbase, op_ndn ) ) {
                                                 goto loopit;
                                          }
                                          break;
                                   case LDAP_SCOPE_ONELEVEL:
                                          dnParent( op_ndn, &bv );
                                          if ( !dn_match( &nbase, &bv ) ) {
                                                 goto loopit;
                                          }
                                          break;
                                   case LDAP_SCOPE_SUBTREE:
                                          if ( !dnIsSuffix( op_ndn, &nbase ) ) {
                                                 goto loopit;
                                          }
                                          break;
                                   case LDAP_SCOPE_SUBORDINATE:
                                          if ( dn_match( &nbase, op_ndn ) ||
                                                 !dnIsSuffix( op_ndn, &nbase ) )
                                          {
                                                 goto loopit;
                                          }
                                   }

                                   /* NOTE: this could be NULL
                                    * if no filter is provided,
                                    * or if filter parsing fails.
                                    * In the latter case,
                                    * we should give up. */
                                   if ( ludp->lud_filter != NULL && ludp->lud_filter != '\0') {
                                          filter = str2filter_x( op, ludp->lud_filter );
                                          if ( filter == NULL ) {
                                                 /* give up... */
                                                 rc = LDAP_OTHER;
                                                 goto loopit;
                                          }

                                          /* only get user if required
                                           * and not available yet */
                                          if ( user == NULL ) {       
                                                 int rc2;

                                                 op->o_bd = select_backend( op_ndn, 0 );
                                                 op->o_private = NULL;
                                                 rc2 = be_entry_get_rw( op, op_ndn, NULL, NULL, 0, &user );
                                                 user_priv = op->o_private;
                                                 op->o_private = o_priv;
                                                 if ( rc2 != 0 ) {
                                                        /* give up... */
                                                        rc = LDAP_OTHER;
                                                        goto loopit;
                                                 }
                                          }

                                          if ( test_filter( NULL, user, filter ) ==
                                                 LDAP_COMPARE_TRUE )
                                          {
                                                 rc = 0;
                                          }
                                          filter_free_x( op, filter, 1 );
                                   }
loopit:
                                   ldap_free_urldesc( ludp );
                                   if ( !BER_BVISNULL( &nbase ) ) {
                                          op->o_tmpfree( nbase.bv_val, op->o_tmpmemctx );
                                   }
                                   if ( rc != LDAP_COMPARE_FALSE ) {
                                          break;
                                   }
                            }

                            if ( user != NULL && user != target ) {
                                   op->o_private = user_priv;
                                   be_entry_release_r( op, user );
                                   op->o_private = o_priv;
                            }
                            op->o_bd = b2;

                     } else {
                            rc = attr_valfind( a,
                                   SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
                                   SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
                                   op_ndn, NULL, op->o_tmpmemctx );
                            if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) {
                                   rc = LDAP_COMPARE_FALSE;
                            }
                     }

              } else {
                     rc = LDAP_NO_SUCH_ATTRIBUTE;
              }

              if ( e != target ) {
                     op->o_private = e_priv;
                     be_entry_release_r( op, e );
                     op->o_private = o_priv;
              }

       } else {
              rc = LDAP_NO_SUCH_OBJECT;
       }

       if ( op->o_tag != LDAP_REQ_BIND && !op->o_do_not_cache ) {
              g = op->o_tmpalloc( sizeof( GroupAssertion ) + gr_ndn->bv_len,
                     op->o_tmpmemctx );
              g->ga_be = op->o_bd;
              g->ga_oc = group_oc;
              g->ga_at = group_at;
              g->ga_res = rc;
              g->ga_len = gr_ndn->bv_len;
              strcpy( g->ga_ndn, gr_ndn->bv_val );
              g->ga_next = op->o_groups;
              op->o_groups = g;
       }

done:
       op->o_bd = be;
       return rc;
}

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int fe_aux_operational ( Operation op,
SlapReply rs 
)

Definition at line 1898 of file backend.c.

{
       Attribute            **ap;
       int                  rc = LDAP_SUCCESS;
       BackendDB            *be_orig = op->o_bd;
       OpExtra              *oex;

       LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
              if ( oex->oe_key == (void *)backend_operational )
                     break;
       }

       for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next )
              /* just count them */ ;

       /*
        * If operational attributes (allegedly) are required, 
        * and the backend supports specific operational attributes, 
        * add them to the attribute list
        */
       if ( !( rs->sr_flags & REP_NO_ENTRYDN )
              && ( SLAP_OPATTRS( rs->sr_attr_flags ) || ( rs->sr_attrs &&
              ad_inlist( slap_schema.si_ad_entryDN, rs->sr_attrs ) ) ) )
       {
              *ap = slap_operational_entryDN( rs->sr_entry );
              ap = &(*ap)->a_next;
       }

       if ( !( rs->sr_flags & REP_NO_SUBSCHEMA)
              && ( SLAP_OPATTRS( rs->sr_attr_flags ) || ( rs->sr_attrs &&
              ad_inlist( slap_schema.si_ad_subschemaSubentry, rs->sr_attrs ) ) ) )
       {
              *ap = slap_operational_subschemaSubentry( op->o_bd );
              ap = &(*ap)->a_next;
       }

       /* Let the overlays have a chance at this */
       if ( oex && ((OpExtraDB *)oex)->oe_db )
              op->o_bd = ((OpExtraDB *)oex)->oe_db;

       if ( !op->o_bd || !SLAP_DBHIDDEN( op->o_bd ))
              op->o_bd = select_backend( &op->o_req_ndn, 0 );

       if ( op->o_bd != NULL && !be_match( op->o_bd, frontendDB ) &&
              ( SLAP_OPATTRS( rs->sr_attr_flags ) || rs->sr_attrs ) &&
              op->o_bd->be_operational != NULL )
       {
              rc = op->o_bd->be_operational( op, rs );
       }
       op->o_bd = be_orig;

       return rc;
}

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Backend* select_backend ( struct berval dn,
int  noSubs 
)

Definition at line 660 of file backend.c.

{
       int           j;
       ber_len_t     len, dnlen = dn->bv_len;
       Backend              *be;

       LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
              if ( be->be_nsuffix == NULL || SLAP_DBHIDDEN( be )) {
                     continue;
              }

              for ( j = 0; !BER_BVISNULL( &be->be_nsuffix[j] ); j++ )
              {
                     if ( ( SLAP_GLUE_SUBORDINATE( be ) ) && noSubs )
                     {
                            continue;
                     }

                     len = be->be_nsuffix[j].bv_len;

                     if ( len > dnlen ) {
                            /* suffix is longer than DN */
                            continue;
                     }
                     
                     /*
                      * input DN is normalized, so the separator check
                      * need not look at escaping
                      */
                     if ( len && len < dnlen &&
                            !DN_SEPARATOR( dn->bv_val[(dnlen-len)-1] ))
                     {
                            continue;
                     }

                     if ( strcmp( be->be_nsuffix[j].bv_val,
                            &dn->bv_val[dnlen-len] ) == 0 )
                     {
                            return be;
                     }
              }
       }

       return be;
}

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Variable Documentation

Definition at line 53 of file backend.c.

Definition at line 50 of file backend.c.

Definition at line 52 of file backend.c.

Definition at line 49 of file backend.c.