Back to index

openldap  2.4.31
Classes | Functions | Variables
null.c File Reference
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "slap.h"
#include "config.h"

Go to the source code of this file.

Classes

struct  null_info

Functions

static int null_back_bind (Operation *op, SlapReply *rs)
static int null_back_respond (Operation *op, SlapReply *rs, int rc)
static int null_back_success (Operation *op, SlapReply *rs)
static int null_back_false (Operation *op, SlapReply *rs)
static int null_back_entry_get (Operation *op, struct berval *ndn, ObjectClass *oc, AttributeDescription *at, int rw, Entry **ent)
static int null_tool_entry_open (BackendDB *be, int mode)
static int null_tool_entry_close (BackendDB *be)
static ID null_tool_entry_first_x (BackendDB *be, struct berval *base, int scope, Filter *f)
static ID null_tool_entry_next (BackendDB *be)
static Entrynull_tool_entry_get (BackendDB *be, ID id)
static ID null_tool_entry_put (BackendDB *be, Entry *e, struct berval *text)
static int null_cf_gen (ConfigArgs *c)
static int null_back_db_init (BackendDB *be, ConfigReply *cr)
static int null_back_db_destroy (Backend *be, ConfigReply *cr)
int null_back_initialize (BackendInfo *bi)

Variables

static ConfigDriver null_cf_gen
static ConfigTable nullcfg []
static ConfigOCs nullocs []

Class Documentation

struct null_info

Definition at line 29 of file null.c.

Class Members
int ni_bind_allowed
ID ni_nextid

Function Documentation

static int null_back_bind ( Operation op,
SlapReply rs 
) [static]

Definition at line 60 of file null.c.

{
       struct null_info *ni = (struct null_info *) op->o_bd->be_private;

       if ( ni->ni_bind_allowed || be_isroot_pw( op ) ) {
              /* front end will send result on success (0) */
              return LDAP_SUCCESS;
       }

       rs->sr_err = LDAP_INVALID_CREDENTIALS;
       send_ldap_result( op, rs );

       return rs->sr_err;
}

Here is the call graph for this function:

Here is the caller graph for this function:

static int null_back_db_destroy ( Backend be,
ConfigReply *  cr 
) [static]

Definition at line 342 of file null.c.

{
       free( be->be_private );
       return 0;
}

Here is the caller graph for this function:

static int null_back_db_init ( BackendDB be,
ConfigReply *  cr 
) [static]

Definition at line 331 of file null.c.

{
       struct null_info *ni = ch_calloc( 1, sizeof(struct null_info) );
       ni->ni_bind_allowed = 0;
       ni->ni_nextid = 1;
       be->be_private = ni;
       be->be_cf_ocs = be->bd_info->bi_cf_ocs;
       return 0;
}

Here is the call graph for this function:

Here is the caller graph for this function:

static int null_back_entry_get ( Operation op,
struct berval ndn,
ObjectClass oc,
AttributeDescription at,
int  rw,
Entry **  ent 
) [static]

Definition at line 251 of file null.c.

{
       /* don't admit the object isn't there */
       return oc || at ? LDAP_NO_SUCH_ATTRIBUTE : LDAP_BUSY;
}

Here is the caller graph for this function:

static int null_back_false ( Operation op,
SlapReply rs 
) [static]

Definition at line 243 of file null.c.

{
       return null_back_respond( op, rs, LDAP_COMPARE_FALSE );
}

Here is the call graph for this function:

Here is the caller graph for this function:

Definition at line 350 of file null.c.

{
       static char *controls[] = {
              LDAP_CONTROL_ASSERT,
              LDAP_CONTROL_MANAGEDSAIT,
              LDAP_CONTROL_NOOP,
              LDAP_CONTROL_PAGEDRESULTS,
              LDAP_CONTROL_SUBENTRIES,
              LDAP_CONTROL_PRE_READ,
              LDAP_CONTROL_POST_READ,
              LDAP_CONTROL_X_PERMISSIVE_MODIFY,
              NULL
       };

       Debug( LDAP_DEBUG_TRACE,
              "null_back_initialize: initialize null backend\n", 0, 0, 0 );

       bi->bi_flags |=
              SLAP_BFLAG_INCREMENT |
              SLAP_BFLAG_SUBENTRIES |
              SLAP_BFLAG_ALIASES |
              SLAP_BFLAG_REFERRALS;

       bi->bi_controls = controls;

       bi->bi_open = 0;
       bi->bi_close = 0;
       bi->bi_config = 0;
       bi->bi_destroy = 0;

       bi->bi_db_init = null_back_db_init;
       bi->bi_db_config = config_generic_wrapper;
       bi->bi_db_open = 0;
       bi->bi_db_close = 0;
       bi->bi_db_destroy = null_back_db_destroy;

       bi->bi_op_bind = null_back_bind;
       bi->bi_op_unbind = 0;
       bi->bi_op_search = null_back_success;
       bi->bi_op_compare = null_back_false;
       bi->bi_op_modify = null_back_success;
       bi->bi_op_modrdn = null_back_success;
       bi->bi_op_add = null_back_success;
       bi->bi_op_delete = null_back_success;
       bi->bi_op_abandon = 0;

       bi->bi_extended = 0;

       bi->bi_chk_referrals = 0;

       bi->bi_connection_init = 0;
       bi->bi_connection_destroy = 0;

       bi->bi_entry_get_rw = null_back_entry_get;

       bi->bi_tool_entry_open = null_tool_entry_open;
       bi->bi_tool_entry_close = null_tool_entry_close;
       bi->bi_tool_entry_first = backend_tool_entry_first;
       bi->bi_tool_entry_first_x = null_tool_entry_first_x;
       bi->bi_tool_entry_next = null_tool_entry_next;
       bi->bi_tool_entry_get = null_tool_entry_get;
       bi->bi_tool_entry_put = null_tool_entry_put;

       bi->bi_cf_ocs = nullocs;
       return config_register_schema( nullcfg, nullocs );
}

Here is the call graph for this function:

static int null_back_respond ( Operation op,
SlapReply rs,
int  rc 
) [static]

Definition at line 77 of file null.c.

{
       LDAPControl ctrl[SLAP_MAX_RESPONSE_CONTROLS], *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
       int c = 0;

       BerElementBuffer     ps_berbuf;
       BerElement           *ps_ber = NULL;
       LDAPControl          **preread_ctrl = NULL,
                            **postread_ctrl = NULL;

       rs->sr_err = LDAP_OTHER;

       /* this comes first, as in case of assertion failure
        * any further processing must stop */
       if ( get_assert( op ) ) {
              rs->sr_err = LDAP_ASSERTION_FAILED;
              goto respond;
       }

       if ( op->o_preread ) {
              Entry         e = { 0 };

              switch ( op->o_tag ) {
              case LDAP_REQ_MODIFY:
              case LDAP_REQ_RENAME:
              case LDAP_REQ_DELETE:
                     e.e_name = op->o_req_dn;
                     e.e_nname = op->o_req_ndn;

                     preread_ctrl = &ctrls[c];
                     *preread_ctrl = NULL;

                     if ( slap_read_controls( op, rs, &e,
                            &slap_pre_read_bv, preread_ctrl ) )
                     {
                            preread_ctrl = NULL;

                            Debug( LDAP_DEBUG_TRACE,
                                   "<=- null_back_respond: pre-read "
                                   "failed!\n", 0, 0, 0 );

                            if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
                                   /* FIXME: is it correct to abort
                                    * operation if control fails? */
                                   goto respond;
                            }

                     } else {
                            c++;
                     }
                     break;
              }
       }

       if ( op->o_postread ) {
              Entry         e = { 0 };

              switch ( op->o_tag ) {
              case LDAP_REQ_ADD:
              case LDAP_REQ_MODIFY:
              case LDAP_REQ_RENAME:
                     if ( op->o_tag == LDAP_REQ_ADD ) {
                            e.e_name = op->ora_e->e_name;
                            e.e_nname = op->ora_e->e_nname;

                     } else {
                            e.e_name = op->o_req_dn;
                            e.e_nname = op->o_req_ndn;
                     }

                     postread_ctrl = &ctrls[c];
                     *postread_ctrl = NULL;

                     if ( slap_read_controls( op, rs, &e,
                            &slap_post_read_bv, postread_ctrl ) )
                     {
                            postread_ctrl = NULL;

                            Debug( LDAP_DEBUG_TRACE,
                                   "<=- null_back_respond: post-read "
                                   "failed!\n", 0, 0, 0 );

                            if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
                                   /* FIXME: is it correct to abort
                                    * operation if control fails? */
                                   goto respond;
                            }

                     } else {
                            c++;
                     }
                     break;
              }
       }

       if ( op->o_noop ) {
              switch ( op->o_tag ) {
              case LDAP_REQ_ADD:
              case LDAP_REQ_MODIFY:
              case LDAP_REQ_RENAME:
              case LDAP_REQ_DELETE:
              case LDAP_REQ_EXTENDED:
                     rc = LDAP_X_NO_OPERATION;
                     break;
              }
       }

       if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED ) {
              struct berval        cookie = BER_BVC( "" );

              /* should not be here... */
              assert( op->o_tag == LDAP_REQ_SEARCH );

              ctrl[c].ldctl_oid = LDAP_CONTROL_PAGEDRESULTS;
              ctrl[c].ldctl_iscritical = 0;

              ps_ber = (BerElement *)&ps_berbuf;
              ber_init2( ps_ber, NULL, LBER_USE_DER );

              /* return size of 0 -- no estimate */
              ber_printf( ps_ber, "{iO}", 0, &cookie ); 

              if ( ber_flatten2( ps_ber, &ctrl[c].ldctl_value, 0 ) == -1 ) {
                     goto done;
              }
              
              ctrls[c] = &ctrl[c];
              c++;
       }

       /* terminate controls array */
       ctrls[c] = NULL;
       rs->sr_ctrls = ctrls;
       rs->sr_err = rc;

respond:;
       send_ldap_result( op, rs );
       rs->sr_ctrls = NULL;

done:;
       if ( ps_ber != NULL ) {
              (void) ber_free_buf( ps_ber );
       }

       if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
              slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
              slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
       }

       if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
              slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
              slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
       }

       return rs->sr_err;
}

Here is the call graph for this function:

Here is the caller graph for this function:

static int null_back_success ( Operation op,
SlapReply rs 
) [static]

Definition at line 236 of file null.c.

{
       return null_back_respond( op, rs, LDAP_SUCCESS );
}

Here is the call graph for this function:

Here is the caller graph for this function:

static int null_cf_gen ( ConfigArgs c) [static]

Definition at line 314 of file null.c.

{
       struct null_info *ni = (struct null_info *) c->be->be_private;

       if ( c->op == SLAP_CONFIG_EMIT ) {
              c->value_int = ni->ni_bind_allowed;
              return LDAP_SUCCESS;
       } else if ( c->op == LDAP_MOD_DELETE ) {
              ni->ni_bind_allowed = 0;
              return LDAP_SUCCESS;
       }

       ni->ni_bind_allowed = c->value_int;
       return LDAP_SUCCESS;
}

Here is the call graph for this function:

static int null_tool_entry_close ( BackendDB be) [static]

Definition at line 273 of file null.c.

{
       assert( be != NULL );
       return 0;
}

Here is the caller graph for this function:

static ID null_tool_entry_first_x ( BackendDB be,
struct berval base,
int  scope,
Filter f 
) [static]

Definition at line 280 of file null.c.

{
       return NOID;
}

Here is the caller graph for this function:

static Entry* null_tool_entry_get ( BackendDB be,
ID  id 
) [static]

Definition at line 292 of file null.c.

{
       assert( slapMode & SLAP_TOOL_MODE );
       return NULL;
}

Here is the caller graph for this function:

static ID null_tool_entry_next ( BackendDB be) [static]

Definition at line 286 of file null.c.

{
       return NOID;
}

Here is the caller graph for this function:

static int null_tool_entry_open ( BackendDB be,
int  mode 
) [static]

Definition at line 267 of file null.c.

{
       return 0;
}

Here is the caller graph for this function:

static ID null_tool_entry_put ( BackendDB be,
Entry e,
struct berval text 
) [static]

Definition at line 299 of file null.c.

{
       assert( slapMode & SLAP_TOOL_MODE );
       assert( text != NULL );
       assert( text->bv_val != NULL );
       assert( text->bv_val[0] == '\0' ); /* overconservative? */

       e->e_id = ((struct null_info *) be->be_private)->ni_nextid++;
       return e->e_id;
}

Here is the caller graph for this function:


Variable Documentation

Definition at line 34 of file null.c.

ConfigTable nullcfg[] [static]
Initial value:
 {
       { "bind", "true|FALSE", 1, 2, 0, ARG_ON_OFF|ARG_MAGIC,
              null_cf_gen,
              "( OLcfgDbAt:8.1 NAME 'olcDbBindAllowed' "
              "DESC 'Allow binds to this database' "
              "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
       { NULL, NULL, 0, 0, 0, ARG_IGNORED,
              NULL, NULL, NULL, NULL }
}

Definition at line 36 of file null.c.

ConfigOCs nullocs[] [static]
Initial value:
 {
       { "( OLcfgDbOc:8.1 "
              "NAME 'olcNullConfig' "
              "DESC 'Null backend ocnfiguration' "
              "SUP olcDatabaseConfig "
              "MAY ( olcDbBindAllowed ) )",
              Cft_Database, nullcfg },
       { NULL, 0, NULL }
}

Definition at line 46 of file null.c.