]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-null/null.c
Merge remote branch 'origin/mdb.master' into OPENLDAP_REL_ENG_2_4
[openldap] / servers / slapd / back-null / null.c
index 17b9254a5644cffa1f45383008f93b00e29fe1d6..d358587f854a15fddca30713ce36bb6194225579 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2002-2007 The OpenLDAP Foundation.
+ * Copyright 2002-2012 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 #include <ac/string.h>
 
 #include "slap.h"
+#include "config.h"
 
 struct null_info {
        int     ni_bind_allowed;
        ID      ni_nextid;
 };
 
+static ConfigDriver null_cf_gen;
+
+static ConfigTable nullcfg[] = {
+       { "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 }
+};
+
+static ConfigOCs nullocs[] = {
+       { "( OLcfgDbOc:8.1 "
+               "NAME 'olcNullConfig' "
+               "DESC 'Null backend ocnfiguration' "
+               "SUP olcDatabaseConfig "
+               "MAY ( olcDbBindAllowed ) )",
+               Cft_Database, nullcfg },
+       { NULL, 0, NULL }
+};
+
 
 /* LDAP operations */
 
@@ -49,27 +72,183 @@ null_back_bind( Operation *op, SlapReply *rs )
        return rs->sr_err;
 }
 
+
+static int
+null_back_respond( Operation *op, SlapReply *rs, int rc )
+{
+       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;
+}
+
 /* add, delete, modify, modrdn, search */
 static int
 null_back_success( Operation *op, SlapReply *rs )
 {
-       rs->sr_err = LDAP_SUCCESS;
-       send_ldap_result( op, rs );
-       return 0;
+       return null_back_respond( op, rs, LDAP_SUCCESS );
 }
 
 /* compare */
 static int
 null_back_false( Operation *op, SlapReply *rs )
 {
-       rs->sr_err = LDAP_COMPARE_FALSE;
-       send_ldap_result( op, rs );
-       return 0;
+       return null_back_respond( op, rs, LDAP_COMPARE_FALSE );
 }
 
 
 /* for overlays */
-int null_back_entry_get(
+static int
+null_back_entry_get(
        Operation *op,
        struct berval *ndn,
        ObjectClass *oc,
@@ -77,8 +256,8 @@ int null_back_entry_get(
        int rw,
        Entry **ent )
 {
-       *ent = NULL;
-       return 1;
+       /* don't admit the object isn't there */
+       return oc || at ? LDAP_NO_SUCH_ATTRIBUTE : LDAP_BUSY;
 }
 
 
@@ -97,6 +276,12 @@ null_tool_entry_close( BackendDB *be )
        return 0;
 }
 
+static ID
+null_tool_entry_first_x( BackendDB *be, struct berval *base, int scope, Filter *f )
+{
+       return NOID;
+}
+
 static ID
 null_tool_entry_next( BackendDB *be )
 {
@@ -126,51 +311,35 @@ null_tool_entry_put( BackendDB *be, Entry *e, struct berval *text )
 /* Setup */
 
 static int
-null_back_db_config(
-       BackendDB       *be,
-       const char      *fname,
-       int             lineno,
-       int             argc,
-       char            **argv )
+null_cf_gen( ConfigArgs *c )
 {
-       struct null_info *ni = (struct null_info *) be->be_private;
-
-       if ( ni == NULL ) {
-               fprintf( stderr, "%s: line %d: null database info is null!\n",
-                       fname, lineno );
-               return 1;
-       }
+       struct null_info *ni = (struct null_info *) c->be->be_private;
 
-       /* bind requests allowed */
-       if ( strcasecmp( argv[0], "bind" ) == 0 ) {
-               if ( argc < 2 ) {
-                       fprintf( stderr,
-       "%s: line %d: missing <on/off> in \"bind <on/off>\" line\n",
-                                fname, lineno );
-                       return 1;
-               }
-               ni->ni_bind_allowed = strcasecmp( argv[1], "off" );
-
-       /* anything else */
-       } else {
-               return SLAP_CONF_UNKNOWN;
+       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;
        }
 
-       return 0;
+       ni->ni_bind_allowed = c->value_int;
+       return LDAP_SUCCESS;
 }
 
 static int
-null_back_db_init( BackendDB *be )
+null_back_db_init( BackendDB *be, ConfigReply *cr )
 {
        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;
 }
 
 static int
-null_back_db_destroy( Backend *be )
+null_back_db_destroy( Backend *be, ConfigReply *cr )
 {
        free( be->be_private );
        return 0;
@@ -180,13 +349,36 @@ null_back_db_destroy( Backend *be )
 int
 null_back_initialize( BackendInfo *bi )
 {
+       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 = null_back_db_config;
+       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;
@@ -212,12 +404,14 @@ null_back_initialize( BackendInfo *bi )
 
        bi->bi_tool_entry_open = null_tool_entry_open;
        bi->bi_tool_entry_close = null_tool_entry_close;
-       bi->bi_tool_entry_first = null_tool_entry_next;
+       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;
 
-       return 0;
+       bi->bi_cf_ocs = nullocs;
+       return config_register_schema( nullcfg, nullocs );
 }
 
 #if SLAPD_NULL == SLAPD_MOD_DYNAMIC