openldap/servers/slapd/add.c
2005-05-13 23:51:43 +00:00

709 lines
18 KiB
C

/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2005 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* Portions Copyright (c) 1995 Regents of the University of Michigan.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/time.h>
#include <ac/socket.h>
#include "slap.h"
#ifdef LDAP_SLAPI
#include "slapi/slapi.h"
static void init_add_pblock( Operation *op, struct berval *dn, Entry *e,
int manageDSAit );
static int call_add_preop_plugins( Operation *op );
static void call_add_postop_plugins( Operation *op );
#endif /* LDAP_SLAPI */
int
do_add( Operation *op, SlapReply *rs )
{
BerElement *ber = op->o_ber;
char *last;
struct berval dn = BER_BVNULL;
ber_len_t len;
ber_tag_t tag;
Modifications *modlist = NULL;
Modifications **modtail = &modlist;
Modifications tmp;
char textbuf[ SLAP_TEXT_BUFLEN ];
size_t textlen = sizeof( textbuf );
int rc = 0;
Debug( LDAP_DEBUG_TRACE, "do_add\n", 0, 0, 0 );
/*
* Parse the add request. It looks like this:
*
* AddRequest := [APPLICATION 14] SEQUENCE {
* name DistinguishedName,
* attrs SEQUENCE OF SEQUENCE {
* type AttributeType,
* values SET OF AttributeValue
* }
* }
*/
/* get the name */
if ( ber_scanf( ber, "{m", /*}*/ &dn ) == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
return SLAPD_DISCONNECT;
}
op->ora_e = (Entry *) ch_calloc( 1, sizeof(Entry) );
rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
op->o_tmpmemctx );
if ( rs->sr_err != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "do_add: invalid dn (%s)\n", dn.bv_val, 0, 0 );
send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
goto done;
}
ber_dupbv( &op->ora_e->e_name, &op->o_req_dn );
ber_dupbv( &op->ora_e->e_nname, &op->o_req_ndn );
Debug( LDAP_DEBUG_ARGS, "do_add: dn (%s)\n", op->ora_e->e_dn, 0, 0 );
/* get the attrs */
for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
tag = ber_next_element( ber, &len, last ) )
{
Modifications *mod;
ber_tag_t rtag;
tmp.sml_nvalues = NULL;
rtag = ber_scanf( ber, "{m{W}}", &tmp.sml_type, &tmp.sml_values );
if ( rtag == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "do_add: decoding error\n", 0, 0, 0 );
send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
rs->sr_err = SLAPD_DISCONNECT;
goto done;
}
if ( tmp.sml_values == NULL ) {
Debug( LDAP_DEBUG_ANY, "no values for type %s\n",
tmp.sml_type.bv_val, 0, 0 );
send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
"no values for attribute type" );
goto done;
}
mod = (Modifications *) ch_malloc( sizeof(Modifications) );
mod->sml_op = LDAP_MOD_ADD;
mod->sml_next = NULL;
mod->sml_desc = NULL;
mod->sml_type = tmp.sml_type;
mod->sml_values = tmp.sml_values;
mod->sml_nvalues = NULL;
*modtail = mod;
modtail = &mod->sml_next;
}
if ( ber_scanf( ber, /*{*/ "}") == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "do_add: ber_scanf failed\n", 0, 0, 0 );
send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
rs->sr_err = SLAPD_DISCONNECT;
goto done;
}
if ( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "do_add: get_ctrls failed\n", 0, 0, 0 );
goto done;
}
if ( modlist == NULL ) {
send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
"no attributes provided" );
goto done;
}
Statslog( LDAP_DEBUG_STATS, "%s ADD dn=\"%s\"\n",
op->o_log_prefix, op->ora_e->e_name.bv_val, 0, 0, 0 );
if ( dn_match( &op->ora_e->e_nname, &slap_empty_bv ) ) {
/* protocolError may be a more appropriate error */
send_ldap_error( op, rs, LDAP_ALREADY_EXISTS,
"root DSE already exists" );
goto done;
} else if ( dn_match( &op->ora_e->e_nname, &frontendDB->be_schemandn ) ) {
send_ldap_error( op, rs, LDAP_ALREADY_EXISTS,
"subschema subentry already exists" );
goto done;
}
rs->sr_err = slap_mods_check( modlist, &rs->sr_text,
textbuf, textlen, NULL );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
/* temporary; remove if not invoking backend function */
op->ora_modlist = modlist;
op->o_bd = frontendDB;
rc = frontendDB->be_add( op, rs );
if ( rc == 0 ) {
if ( op->ora_e != NULL && op->o_private != NULL ) {
BackendDB *bd = op->o_bd;
op->o_bd = (BackendDB *)op->o_private;
op->o_private = NULL;
be_entry_release_w( op, op->ora_e );
op->ora_e = NULL;
op->o_bd = bd;
op->o_private = NULL;
}
}
done:;
slap_graduate_commit_csn( op );
if ( modlist != NULL ) {
slap_mods_free( modlist );
}
if ( op->ora_e != NULL ) {
entry_free( op->ora_e );
}
op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
return rc;
}
int
fe_op_add( Operation *op, SlapReply *rs )
{
int manageDSAit;
Modifications *modlist = op->ora_modlist;
Modifications **modtail = &modlist;
int rc = 0;
BackendDB *op_be;
char textbuf[ SLAP_TEXT_BUFLEN ];
size_t textlen = sizeof( textbuf );
manageDSAit = get_manageDSAit( op );
/*
* We could be serving multiple database backends. Select the
* appropriate one, or send a referral to our "referral server"
* if we don't hold it.
*/
op->o_bd = select_backend( &op->ora_e->e_nname, manageDSAit, 1 );
if ( op->o_bd == NULL ) {
rs->sr_ref = referral_rewrite( default_referral,
NULL, &op->ora_e->e_name, LDAP_SCOPE_DEFAULT );
if ( !rs->sr_ref ) rs->sr_ref = default_referral;
if ( rs->sr_ref ) {
rs->sr_err = LDAP_REFERRAL;
op->o_bd = frontendDB;
send_ldap_result( op, rs );
op->o_bd = NULL;
if ( rs->sr_ref != default_referral ) {
ber_bvarray_free( rs->sr_ref );
}
} else {
op->o_bd = frontendDB;
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"no global superior knowledge" );
op->o_bd = NULL;
}
goto done;
}
/* If we've got a glued backend, check the real backend */
op_be = op->o_bd;
if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
op->o_bd = select_backend( &op->ora_e->e_nname, manageDSAit, 0 );
}
/* check restrictions */
if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
/* check for referrals */
if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
goto done;
}
rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
&rs->sr_text, textbuf, textlen );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
#ifdef LDAP_SLAPI
if ( op->o_pb ) init_add_pblock( op, &op->o_req_dn, op->ora_e, manageDSAit );
#endif /* LDAP_SLAPI */
/*
* do the add if 1 && (2 || 3)
* 1) there is an add function implemented in this backend;
* 2) this backend is master for what it holds;
* 3) it's a replica and the dn supplied is the updatedn.
*/
if ( op->o_bd->be_add ) {
/* do the update here */
int repl_user = be_isupdate( op );
#ifndef SLAPD_MULTIMASTER
if ( !SLAP_SHADOW(op->o_bd) || repl_user )
#endif
{
int update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
slap_callback cb = { NULL, slap_replog_cb, NULL, NULL };
op->o_bd = op_be;
if ( !update ) {
rs->sr_err = slap_mods_no_user_mod_check( op, modlist,
&rs->sr_text, textbuf, textlen );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
}
if ( !repl_user ) {
/* go to the last mod */
for ( modtail = &modlist;
*modtail != NULL;
modtail = &(*modtail)->sml_next )
{
assert( (*modtail)->sml_op == LDAP_MOD_ADD );
assert( (*modtail)->sml_desc != NULL );
}
rs->sr_err = slap_mods_opattrs( op, modlist,
modtail, &rs->sr_text,
textbuf, textlen, 1 );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
}
rs->sr_err = slap_mods2entry( modlist, &op->ora_e,
repl_user, 0, &rs->sr_text, textbuf, textlen );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto done;
}
#ifdef LDAP_SLAPI
/*
* Call the preoperation plugin here, because the entry
* will actually contain something.
*/
if ( op->o_pb ) {
rs->sr_err = call_add_preop_plugins( op );
if ( rs->sr_err != LDAP_SUCCESS ) {
/* plugin will have sent result */
goto done;
}
}
#endif /* LDAP_SLAPI */
#ifdef SLAPD_MULTIMASTER
if ( !repl_user )
#endif
{
cb.sc_next = op->o_callback;
op->o_callback = &cb;
}
rc = op->o_bd->be_add( op, rs );
if ( rc == LDAP_SUCCESS ) {
/* NOTE: be_entry_release_w() is
* called by do_add(), so that global
* overlays on the way back can
* at least read the entry */
op->o_private = op->o_bd;
}
#ifndef SLAPD_MULTIMASTER
} else {
BerVarray defref = NULL;
#ifdef LDAP_SLAPI
/*
* SLAPI_ADD_ENTRY will be empty, but this may be acceptable
* on replicas (for now, it involves the minimum code intrusion).
*/
if ( op->o_pb ) {
rs->sr_err = call_add_preop_plugins( op );
if ( rs->sr_err != LDAP_SUCCESS ) {
/* plugin will have sent result */
goto done;
}
}
#endif /* LDAP_SLAPI */
defref = op->o_bd->be_update_refs
? op->o_bd->be_update_refs : default_referral;
if ( defref != NULL ) {
rs->sr_ref = referral_rewrite( defref,
NULL, &op->ora_e->e_name, LDAP_SCOPE_DEFAULT );
if ( rs->sr_ref == NULL ) rs->sr_ref = defref;
rs->sr_err = LDAP_REFERRAL;
if (!rs->sr_ref) rs->sr_ref = default_referral;
send_ldap_result( op, rs );
if ( rs->sr_ref != default_referral ) {
ber_bvarray_free( rs->sr_ref );
}
} else {
send_ldap_error( op, rs,
LDAP_UNWILLING_TO_PERFORM,
"shadow context; no update referral" );
}
#endif /* SLAPD_MULTIMASTER */
}
} else {
#ifdef LDAP_SLAPI
if ( op->o_pb ) {
rs->sr_err = call_add_preop_plugins( op );
if ( rs->sr_err != LDAP_SUCCESS ) {
/* plugin will have sent result */
goto done;
}
}
#endif
Debug( LDAP_DEBUG_ARGS, " do_add: no backend support\n", 0, 0, 0 );
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"operation not supported within namingContext" );
}
#ifdef LDAP_SLAPI
if ( op->o_pb ) call_add_postop_plugins( op );
#endif /* LDAP_SLAPI */
done:;
return rc;
}
int
slap_mods2entry(
Modifications *mods,
Entry **e,
int repl_user,
int dup,
const char **text,
char *textbuf, size_t textlen )
{
Attribute **tail = &(*e)->e_attrs;
assert( *tail == NULL );
*text = textbuf;
for( ; mods != NULL; mods = mods->sml_next ) {
Attribute *attr;
if ( !repl_user ) {
assert( mods->sml_op == LDAP_MOD_ADD );
}
assert( mods->sml_desc != NULL );
attr = attr_find( (*e)->e_attrs, mods->sml_desc );
if( attr != NULL ) {
#define SLURPD_FRIENDLY
#ifdef SLURPD_FRIENDLY
ber_len_t i,j;
if( !repl_user ) {
snprintf( textbuf, textlen,
"attribute '%s' provided more than once",
mods->sml_desc->ad_cname.bv_val );
return LDAP_TYPE_OR_VALUE_EXISTS;
}
for( i=0; attr->a_vals[i].bv_val; i++ ) {
/* count them */
}
for( j=0; mods->sml_values[j].bv_val; j++ ) {
/* count them */
}
j++; /* NULL */
attr->a_vals = ch_realloc( attr->a_vals,
sizeof( struct berval ) * (i+j) );
/* should check for duplicates */
if ( dup ) {
for ( j = 0; mods->sml_values[j].bv_val; j++ ) {
ber_dupbv( &attr->a_vals[i+j], &mods->sml_values[j] );
}
BER_BVZERO( &attr->a_vals[i+j] );
} else {
AC_MEMCPY( &attr->a_vals[i], mods->sml_values,
sizeof( struct berval ) * j );
ch_free( mods->sml_values );
mods->sml_values = NULL;
}
if( mods->sml_nvalues ) {
attr->a_nvals = ch_realloc( attr->a_nvals,
sizeof( struct berval ) * (i+j) );
if ( dup ) {
for ( j = 0; mods->sml_nvalues[j].bv_val; j++ ) {
ber_dupbv( &attr->a_nvals[i+j], &mods->sml_nvalues[j] );
}
BER_BVZERO( &attr->a_nvals[i+j] );
} else {
AC_MEMCPY( &attr->a_nvals[i], mods->sml_nvalues,
sizeof( struct berval ) * j );
ch_free( mods->sml_nvalues );
mods->sml_nvalues = NULL;
}
} else {
attr->a_nvals = attr->a_vals;
}
continue;
#else
snprintf( textbuf, textlen,
"attribute '%s' provided more than once",
mods->sml_desc->ad_cname.bv_val );
return LDAP_TYPE_OR_VALUE_EXISTS;
#endif
}
if( mods->sml_values[1].bv_val != NULL ) {
/* check for duplicates */
int i, j, rc, match;
MatchingRule *mr = mods->sml_desc->ad_type->sat_equality;
for ( i = 1; mods->sml_values[i].bv_val != NULL; i++ ) {
/* test asserted values against themselves */
for( j = 0; j < i; j++ ) {
rc = ordered_value_match( &match, mods->sml_desc, mr,
SLAP_MR_EQUALITY
| SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX
| SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH
| SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH,
mods->sml_nvalues
? &mods->sml_nvalues[i]
: &mods->sml_values[i],
mods->sml_nvalues
? &mods->sml_nvalues[j]
: &mods->sml_values[j],
text );
if ( rc == LDAP_SUCCESS && match == 0 ) {
/* value exists already */
snprintf( textbuf, textlen,
"%s: value #%d provided more than once",
mods->sml_desc->ad_cname.bv_val, j );
return LDAP_TYPE_OR_VALUE_EXISTS;
} else if ( rc != LDAP_SUCCESS ) {
return rc;
}
}
}
}
attr = ch_calloc( 1, sizeof(Attribute) );
/* move ad to attr structure */
attr->a_desc = mods->sml_desc;
if ( !dup ) mods->sml_desc = NULL;
/* move values to attr structure */
/* should check for duplicates */
if ( dup ) {
int i;
for ( i = 0; mods->sml_values[i].bv_val; i++ ) /* EMPTY */;
attr->a_vals = (BerVarray) ch_calloc( i+1, sizeof( BerValue ));
for ( i = 0; mods->sml_values[i].bv_val; i++ ) {
ber_dupbv( &attr->a_vals[i], &mods->sml_values[i] );
}
BER_BVZERO( &attr->a_vals[i] );
} else {
attr->a_vals = mods->sml_values;
mods->sml_values = NULL;
}
if ( mods->sml_nvalues ) {
if ( dup ) {
int i;
for ( i = 0; mods->sml_nvalues[i].bv_val; i++ ) /* EMPTY */;
attr->a_nvals = (BerVarray) ch_calloc( i+1, sizeof( BerValue ));
for ( i = 0; mods->sml_nvalues[i].bv_val; i++ ) {
ber_dupbv( &attr->a_nvals[i], &mods->sml_nvalues[i] );
}
BER_BVZERO( &attr->a_nvals[i] );
} else {
attr->a_nvals = mods->sml_nvalues;
mods->sml_nvalues = NULL;
}
} else {
attr->a_nvals = attr->a_vals;
}
*tail = attr;
tail = &attr->a_next;
}
*text = NULL;
return LDAP_SUCCESS;
}
int
slap_entry2mods(
Entry *e,
Modifications **mods,
const char **text,
char *textbuf, size_t textlen )
{
Modifications *modhead = NULL;
Modifications *mod;
Modifications **modtail = &modhead;
Attribute *a_new;
AttributeDescription *a_new_desc;
int i, count;
a_new = e->e_attrs;
while ( a_new != NULL ) {
a_new_desc = a_new->a_desc;
mod = (Modifications *) malloc( sizeof( Modifications ));
mod->sml_op = LDAP_MOD_REPLACE;
mod->sml_type = a_new_desc->ad_cname;
for ( count = 0; a_new->a_vals[count].bv_val; count++ ) /* EMPTY */;
mod->sml_values = (struct berval*) malloc(
(count+1) * sizeof( struct berval) );
/* see slap_mods_check() comments...
* if a_vals == a_nvals, there is no normalizer.
* in this case, mod->sml_nvalues must be left NULL.
*/
if ( a_new->a_vals != a_new->a_nvals ) {
mod->sml_nvalues = (struct berval*) malloc(
(count+1) * sizeof( struct berval) );
} else {
mod->sml_nvalues = NULL;
}
for ( i = 0; i < count; i++ ) {
ber_dupbv(mod->sml_values+i, a_new->a_vals+i);
if ( mod->sml_nvalues ) {
ber_dupbv( mod->sml_nvalues+i, a_new->a_nvals+i );
}
}
mod->sml_values[count].bv_val = NULL;
mod->sml_values[count].bv_len = 0;
if ( mod->sml_nvalues ) {
mod->sml_nvalues[count].bv_val = NULL;
mod->sml_nvalues[count].bv_len = 0;
}
mod->sml_desc = a_new_desc;
mod->sml_next =NULL;
*modtail = mod;
modtail = &mod->sml_next;
a_new = a_new->a_next;
}
*mods = modhead;
return LDAP_SUCCESS;
}
#ifdef LDAP_SLAPI
static void init_add_pblock( Operation *op,
struct berval *dn, Entry *e, int manageDSAit )
{
slapi_int_pblock_set_operation( op->o_pb, op );
slapi_pblock_set( op->o_pb, SLAPI_ADD_TARGET, (void *)dn->bv_val );
slapi_pblock_set( op->o_pb, SLAPI_ADD_ENTRY, (void *)e );
slapi_pblock_set( op->o_pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
}
static int call_add_preop_plugins( Operation *op )
{
int rc;
rc = slapi_int_call_plugins( op->o_bd, SLAPI_PLUGIN_PRE_ADD_FN, op->o_pb );
if ( rc < 0 ) {
/*
* A preoperation plugin failure will abort the
* entire operation.
*/
Debug(LDAP_DEBUG_TRACE,
"do_add: add preoperation plugin failed.\n",
0, 0, 0);
if (( slapi_pblock_get( op->o_pb, SLAPI_RESULT_CODE,
(void *)&rc ) != 0 ) || rc == LDAP_SUCCESS )
{
rc = LDAP_OTHER;
}
} else {
rc = LDAP_SUCCESS;
}
return rc;
}
static void call_add_postop_plugins( Operation *op )
{
int rc;
rc = slapi_int_call_plugins( op->o_bd, SLAPI_PLUGIN_POST_ADD_FN, op->o_pb );
if ( rc < 0 ) {
Debug(LDAP_DEBUG_TRACE,
"do_add: add postoperation plugin failed\n",
0, 0, 0);
}
}
#endif /* LDAP_SLAPI */