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openldap/servers/slapd/modify.c
Kurt Zeilenga 966cef8c9a Happy New Year
2011-01-05 00:42:37 +00:00

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/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2011 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/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#include "slap.h"
#include "lutil.h"
int
do_modify(
Operation *op,
SlapReply *rs )
{
struct berval dn = BER_BVNULL;
char textbuf[ SLAP_TEXT_BUFLEN ];
size_t textlen = sizeof( textbuf );
#ifdef LDAP_DEBUG
Modifications *tmp;
#endif
Debug( LDAP_DEBUG_TRACE, "%s do_modify\n",
op->o_log_prefix, 0, 0 );
/*
* Parse the modify request. It looks like this:
*
* ModifyRequest := [APPLICATION 6] SEQUENCE {
* name DistinguishedName,
* mods SEQUENCE OF SEQUENCE {
* operation ENUMERATED {
* add (0),
* delete (1),
* replace (2)
* },
* modification SEQUENCE {
* type AttributeType,
* values SET OF AttributeValue
* }
* }
* }
*/
if ( ber_scanf( op->o_ber, "{m" /*}*/, &dn ) == LBER_ERROR ) {
Debug( LDAP_DEBUG_ANY, "%s do_modify: ber_scanf failed\n",
op->o_log_prefix, 0, 0 );
send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
return SLAPD_DISCONNECT;
}
Debug( LDAP_DEBUG_ARGS, "%s do_modify: dn (%s)\n",
op->o_log_prefix, dn.bv_val, 0 );
rs->sr_err = slap_parse_modlist( op, rs, op->o_ber, &op->oq_modify );
if ( rs->sr_err != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "%s do_modify: slap_parse_modlist failed err=%d msg=%s\n",
op->o_log_prefix, rs->sr_err, rs->sr_text );
send_ldap_result( op, rs );
goto cleanup;
}
if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY, "%s do_modify: get_ctrls failed\n",
op->o_log_prefix, 0, 0 );
/* get_ctrls has sent results. Now clean up. */
goto cleanup;
}
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, "%s do_modify: invalid dn (%s)\n",
op->o_log_prefix, dn.bv_val, 0 );
send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
goto cleanup;
}
op->orm_no_opattrs = 0;
#ifdef LDAP_DEBUG
Debug( LDAP_DEBUG_ARGS, "%s modifications:\n",
op->o_log_prefix, 0, 0 );
for ( tmp = op->orm_modlist; tmp != NULL; tmp = tmp->sml_next ) {
Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
tmp->sml_op == LDAP_MOD_ADD ? "add" :
(tmp->sml_op == LDAP_MOD_INCREMENT ? "increment" :
(tmp->sml_op == LDAP_MOD_DELETE ? "delete" :
"replace")), tmp->sml_type.bv_val, 0 );
if ( tmp->sml_values == NULL ) {
Debug( LDAP_DEBUG_ARGS, "%s\n",
"\t\tno values", NULL, NULL );
} else if ( BER_BVISNULL( &tmp->sml_values[ 0 ] ) ) {
Debug( LDAP_DEBUG_ARGS, "%s\n",
"\t\tzero values", NULL, NULL );
} else if ( BER_BVISNULL( &tmp->sml_values[ 1 ] ) ) {
Debug( LDAP_DEBUG_ARGS, "%s, length %ld\n",
"\t\tone value", (long) tmp->sml_values[0].bv_len, NULL );
} else {
Debug( LDAP_DEBUG_ARGS, "%s\n",
"\t\tmultiple values", NULL, NULL );
}
}
if ( StatslogTest( LDAP_DEBUG_STATS ) ) {
char abuf[BUFSIZ/2], *ptr = abuf;
int len = 0;
Statslog( LDAP_DEBUG_STATS, "%s MOD dn=\"%s\"\n",
op->o_log_prefix, op->o_req_dn.bv_val, 0, 0, 0 );
for ( tmp = op->orm_modlist; tmp != NULL; tmp = tmp->sml_next ) {
if (len + 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
op->o_log_prefix, abuf, 0, 0, 0 );
len = 0;
ptr = abuf;
if( 1 + tmp->sml_type.bv_len > sizeof(abuf)) {
Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
op->o_log_prefix, tmp->sml_type.bv_val, 0, 0, 0 );
continue;
}
}
if (len) {
*ptr++ = ' ';
len++;
}
ptr = lutil_strcopy(ptr, tmp->sml_type.bv_val);
len += tmp->sml_type.bv_len;
}
if (len) {
Statslog( LDAP_DEBUG_STATS, "%s MOD attr=%s\n",
op->o_log_prefix, abuf, 0, 0, 0 );
}
}
#endif /* LDAP_DEBUG */
rs->sr_err = slap_mods_check( op, op->orm_modlist,
&rs->sr_text, textbuf, textlen, NULL );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto cleanup;
}
op->o_bd = frontendDB;
rs->sr_err = frontendDB->be_modify( op, rs );
#ifdef LDAP_X_TXN
if( rs->sr_err == LDAP_X_TXN_SPECIFY_OKAY ) {
/* skip cleanup */
return rs->sr_err;
}
#endif
cleanup:
op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
if ( op->orm_modlist != NULL ) slap_mods_free( op->orm_modlist, 1 );
return rs->sr_err;
}
int
fe_op_modify( Operation *op, SlapReply *rs )
{
BackendDB *op_be, *bd = op->o_bd;
char textbuf[ SLAP_TEXT_BUFLEN ];
size_t textlen = sizeof( textbuf );
if ( BER_BVISEMPTY( &op->o_req_ndn ) ) {
Debug( LDAP_DEBUG_ANY, "%s do_modify: root dse!\n",
op->o_log_prefix, 0, 0 );
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"modify upon the root DSE not supported" );
goto cleanup;
} else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
Debug( LDAP_DEBUG_ANY, "%s do_modify: subschema subentry!\n",
op->o_log_prefix, 0, 0 );
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"modification of subschema subentry not supported" );
goto cleanup;
}
/*
* 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->o_req_ndn, 1 );
if ( op->o_bd == NULL ) {
op->o_bd = bd;
rs->sr_ref = referral_rewrite( default_referral,
NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
if ( !rs->sr_ref ) {
rs->sr_ref = default_referral;
}
if ( rs->sr_ref != NULL ) {
rs->sr_err = LDAP_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,
"no global superior knowledge" );
}
goto cleanup;
}
/* 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->o_req_ndn, 0 );
}
/* check restrictions */
if ( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto cleanup;
}
/* check for referrals */
if ( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
goto cleanup;
}
rs->sr_err = slap_mods_obsolete_check( op, op->orm_modlist,
&rs->sr_text, textbuf, textlen );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto cleanup;
}
/* check for modify/increment support */
if ( op->orm_increment && !SLAP_INCREMENT( op->o_bd ) ) {
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"modify/increment not supported in context" );
goto cleanup;
}
/*
* do the modify if 1 && (2 || 3)
* 1) there is a modify 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 update_ndn.
*/
if ( op->o_bd->be_modify ) {
/* do the update here */
int repl_user = be_isupdate( op );
/*
* Multimaster slapd does not have to check for replicator dn
* because it accepts each modify request
*/
if ( !SLAP_SINGLE_SHADOW(op->o_bd) || repl_user ) {
int update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
op->o_bd = op_be;
if ( !update ) {
rs->sr_err = slap_mods_no_user_mod_check( op, op->orm_modlist,
&rs->sr_text, textbuf, textlen );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto cleanup;
}
}
op->o_bd->be_modify( op, rs );
} else { /* send a referral */
BerVarray 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->o_req_dn,
LDAP_SCOPE_DEFAULT );
if ( rs->sr_ref == NULL ) {
/* FIXME: must duplicate, because
* overlays may muck with it */
rs->sr_ref = defref;
}
rs->sr_err = LDAP_REFERRAL;
send_ldap_result( op, rs );
if ( rs->sr_ref != defref ) {
ber_bvarray_free( rs->sr_ref );
}
} else {
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"shadow context; no update referral" );
}
}
} else {
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"operation not supported within namingContext" );
}
cleanup:;
op->o_bd = bd;
return rs->sr_err;
}
/*
* Obsolete constraint checking.
*/
int
slap_mods_obsolete_check(
Operation *op,
Modifications *ml,
const char **text,
char *textbuf,
size_t textlen )
{
if( get_relax( op ) ) return LDAP_SUCCESS;
for ( ; ml != NULL; ml = ml->sml_next ) {
if ( is_at_obsolete( ml->sml_desc->ad_type ) &&
(( ml->sml_op != LDAP_MOD_REPLACE &&
ml->sml_op != LDAP_MOD_DELETE ) ||
ml->sml_values != NULL ))
{
/*
* attribute is obsolete,
* only allow replace/delete with no values
*/
snprintf( textbuf, textlen,
"%s: attribute is obsolete",
ml->sml_type.bv_val );
*text = textbuf;
return LDAP_CONSTRAINT_VIOLATION;
}
}
return LDAP_SUCCESS;
}
/*
* No-user-modification constraint checking.
*/
int
slap_mods_no_user_mod_check(
Operation *op,
Modifications *ml,
const char **text,
char *textbuf,
size_t textlen )
{
for ( ; ml != NULL; ml = ml->sml_next ) {
if ( !is_at_no_user_mod( ml->sml_desc->ad_type ) ) {
continue;
}
if ( ml->sml_flags & SLAP_MOD_INTERNAL ) {
continue;
}
if ( get_relax( op ) ) {
if ( ml->sml_desc->ad_type->sat_flags & SLAP_AT_MANAGEABLE ) {
ml->sml_flags |= SLAP_MOD_MANAGING;
continue;
}
/* attribute not manageable */
snprintf( textbuf, textlen,
"%s: no-user-modification attribute not manageable",
ml->sml_type.bv_val );
} else {
/* user modification disallowed */
snprintf( textbuf, textlen,
"%s: no user modification allowed",
ml->sml_type.bv_val );
}
*text = textbuf;
return LDAP_CONSTRAINT_VIOLATION;
}
return LDAP_SUCCESS;
}
int
slap_mods_no_repl_user_mod_check(
Operation *op,
Modifications *ml,
const char **text,
char *textbuf,
size_t textlen )
{
Modifications *mods;
Modifications *modp;
for ( mods = ml; mods != NULL; mods = mods->sml_next ) {
assert( mods->sml_op == LDAP_MOD_ADD );
/* check doesn't already appear */
for ( modp = ml; modp != NULL; modp = modp->sml_next ) {
if ( mods->sml_desc == modp->sml_desc && mods != modp ) {
snprintf( textbuf, textlen,
"attribute '%s' provided more than once",
mods->sml_desc->ad_cname.bv_val );
*text = textbuf;
return LDAP_TYPE_OR_VALUE_EXISTS;
}
}
}
return LDAP_SUCCESS;
}
/*
* Do basic attribute type checking and syntax validation.
*/
int slap_mods_check(
Operation *op,
Modifications *ml,
const char **text,
char *textbuf,
size_t textlen,
void *ctx )
{
int rc;
for( ; ml != NULL; ml = ml->sml_next ) {
AttributeDescription *ad = NULL;
/* convert to attribute description */
if ( ml->sml_desc == NULL ) {
rc = slap_bv2ad( &ml->sml_type, &ml->sml_desc, text );
if( rc != LDAP_SUCCESS ) {
if ( get_no_schema_check( op )) {
rc = slap_bv2undef_ad( &ml->sml_type, &ml->sml_desc,
text, 0 );
}
}
if( rc != LDAP_SUCCESS ) {
snprintf( textbuf, textlen, "%s: %s",
ml->sml_type.bv_val, *text );
*text = textbuf;
return rc;
}
}
ad = ml->sml_desc;
if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
&& !slap_ad_is_binary( ad ))
{
/* attribute requires binary transfer */
snprintf( textbuf, textlen,
"%s: requires ;binary transfer",
ml->sml_type.bv_val );
*text = textbuf;
return LDAP_UNDEFINED_TYPE;
}
if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
&& slap_ad_is_binary( ad ))
{
/* attribute does not require binary transfer */
snprintf( textbuf, textlen,
"%s: disallows ;binary transfer",
ml->sml_type.bv_val );
*text = textbuf;
return LDAP_UNDEFINED_TYPE;
}
if( slap_ad_is_tag_range( ad )) {
/* attribute requires binary transfer */
snprintf( textbuf, textlen,
"%s: inappropriate use of tag range option",
ml->sml_type.bv_val );
*text = textbuf;
return LDAP_UNDEFINED_TYPE;
}
#if 0
if ( is_at_obsolete( ad->ad_type ) &&
(( ml->sml_op != LDAP_MOD_REPLACE &&
ml->sml_op != LDAP_MOD_DELETE ) ||
ml->sml_values != NULL ))
{
/*
* attribute is obsolete,
* only allow replace/delete with no values
*/
snprintf( textbuf, textlen,
"%s: attribute is obsolete",
ml->sml_type.bv_val );
*text = textbuf;
return LDAP_CONSTRAINT_VIOLATION;
}
#endif
if ( ml->sml_op == LDAP_MOD_INCREMENT &&
#ifdef SLAPD_REAL_SYNTAX
!is_at_syntax( ad->ad_type, SLAPD_REAL_SYNTAX ) &&
#endif
!is_at_syntax( ad->ad_type, SLAPD_INTEGER_SYNTAX ) )
{
/*
* attribute values must be INTEGER or REAL
*/
snprintf( textbuf, textlen,
"%s: attribute syntax inappropriate for increment",
ml->sml_type.bv_val );
*text = textbuf;
return LDAP_CONSTRAINT_VIOLATION;
}
/*
* check values
*/
if( ml->sml_values != NULL ) {
ber_len_t nvals;
slap_syntax_validate_func *validate =
ad->ad_type->sat_syntax->ssyn_validate;
slap_syntax_transform_func *pretty =
ad->ad_type->sat_syntax->ssyn_pretty;
if( !pretty && !validate ) {
*text = "no validator for syntax";
snprintf( textbuf, textlen,
"%s: no validator for syntax %s",
ml->sml_type.bv_val,
ad->ad_type->sat_syntax->ssyn_oid );
*text = textbuf;
return LDAP_INVALID_SYNTAX;
}
/*
* check that each value is valid per syntax
* and pretty if appropriate
*/
for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
struct berval pval;
if ( pretty ) {
rc = ordered_value_pretty( ad,
&ml->sml_values[nvals], &pval, ctx );
} else {
rc = ordered_value_validate( ad,
&ml->sml_values[nvals], ml->sml_op );
}
if( rc != 0 ) {
snprintf( textbuf, textlen,
"%s: value #%ld invalid per syntax",
ml->sml_type.bv_val, (long) nvals );
*text = textbuf;
return LDAP_INVALID_SYNTAX;
}
if( pretty ) {
ber_memfree_x( ml->sml_values[nvals].bv_val, ctx );
ml->sml_values[nvals] = pval;
}
}
ml->sml_values[nvals].bv_len = 0;
ml->sml_numvals = nvals;
/*
* a rough single value check... an additional check is needed
* to catch add of single value to existing single valued attribute
*/
if ((ml->sml_op == LDAP_MOD_ADD || ml->sml_op == LDAP_MOD_REPLACE)
&& nvals > 1 && is_at_single_value( ad->ad_type ))
{
snprintf( textbuf, textlen,
"%s: multiple values provided",
ml->sml_type.bv_val );
*text = textbuf;
return LDAP_CONSTRAINT_VIOLATION;
}
/* if the type has a normalizer, generate the
* normalized values. otherwise leave them NULL.
*
* this is different from the rule for attributes
* in an entry - in an attribute list, the normalized
* value is set equal to the non-normalized value
* when there is no normalizer.
*/
if( nvals && ad->ad_type->sat_equality &&
ad->ad_type->sat_equality->smr_normalize )
{
ml->sml_nvalues = ber_memalloc_x(
(nvals+1)*sizeof(struct berval), ctx );
for ( nvals = 0; !BER_BVISNULL( &ml->sml_values[nvals] ); nvals++ ) {
rc = ordered_value_normalize(
SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
ad,
ad->ad_type->sat_equality,
&ml->sml_values[nvals], &ml->sml_nvalues[nvals], ctx );
if ( rc ) {
Debug( LDAP_DEBUG_ANY,
"<= str2entry NULL (ssyn_normalize %d)\n",
rc, 0, 0 );
snprintf( textbuf, textlen,
"%s: value #%ld normalization failed",
ml->sml_type.bv_val, (long) nvals );
*text = textbuf;
BER_BVZERO( &ml->sml_nvalues[nvals] );
return rc;
}
}
BER_BVZERO( &ml->sml_nvalues[nvals] );
}
/* check for duplicates, but ignore Deletes.
*/
if( nvals > 1 && ml->sml_op != LDAP_MOD_DELETE ) {
int i;
rc = slap_sort_vals( ml, text, &i, ctx );
if ( rc == LDAP_TYPE_OR_VALUE_EXISTS ) {
/* value exists already */
snprintf( textbuf, textlen,
"%s: value #%d provided more than once",
ml->sml_desc->ad_cname.bv_val, i );
*text = textbuf;
}
if ( rc )
return rc;
}
} else {
ml->sml_numvals = 0;
}
}
return LDAP_SUCCESS;
}
/* Sort a set of values. An (Attribute *) may be used interchangeably here
* instead of a (Modifications *) structure.
*
* Uses Quicksort + Insertion sort for small arrays
*/
int
slap_sort_vals(
Modifications *ml,
const char **text,
int *dup,
void *ctx )
{
AttributeDescription *ad;
MatchingRule *mr;
int istack[sizeof(int)*16];
int i, j, k, l, ir, jstack, match, *ix, itmp, nvals, rc = LDAP_SUCCESS;
int is_norm;
struct berval a, *cv;
#define SMALL 8
#define SWAP(a,b,tmp) tmp=(a);(a)=(b);(b)=tmp
#define COMP(a,b) match=0; rc = ordered_value_match( &match, \
ad, mr, SLAP_MR_EQUALITY \
| SLAP_MR_VALUE_OF_ASSERTION_SYNTAX \
| SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH \
| SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH, \
&(a), &(b), text );
#define IX(x) ix[x]
#define EXCH(x,y) SWAP(ix[x],ix[y],itmp)
#define SETA(x) itmp = ix[x]; a = cv[itmp]
#define GETA(x) ix[x] = itmp;
#define SET(x,y) ix[x] = ix[y]
ad = ml->sml_desc;
nvals = ml->sml_numvals;
if ( nvals <= 1 )
goto ret;
/* For Modifications, sml_nvalues is NULL if normalization wasn't needed.
* For Attributes, sml_nvalues == sml_values when normalization isn't needed.
*/
if ( ml->sml_nvalues && ml->sml_nvalues != ml->sml_values ) {
cv = ml->sml_nvalues;
is_norm = 1;
} else {
cv = ml->sml_values;
is_norm = 0;
}
if ( ad == slap_schema.si_ad_objectClass )
mr = NULL; /* shortcut matching */
else
mr = ad->ad_type->sat_equality;
/* record indices to preserve input ordering */
ix = slap_sl_malloc( nvals * sizeof(int), ctx );
for (i=0; i<nvals; i++) ix[i] = i;
ir = nvals-1;
l = 0;
jstack = 0;
for(;;) {
if (ir - l < SMALL) { /* Insertion sort */
match=1;
for (j=l+1;j<=ir;j++) {
SETA(j);
for (i=j-1;i>=0;i--) {
COMP(cv[IX(i)], a);
if ( match <= 0 )
break;
SET(i+1,i);
}
GETA(i+1);
if ( match == 0 ) goto done;
}
if ( jstack == 0 ) break;
if ( match == 0 ) break;
ir = istack[jstack--];
l = istack[jstack--];
} else {
k = (l + ir) >> 1; /* Choose median of left, center, right */
EXCH(k, l+1);
COMP( cv[IX(l)], cv[IX(ir)] );
if ( match > 0 ) {
EXCH(l, ir);
} else if ( match == 0 ) {
i = ir;
break;
}
COMP( cv[IX(l+1)], cv[IX(ir)] );
if ( match > 0 ) {
EXCH(l+1, ir);
} else if ( match == 0 ) {
i = ir;
break;
}
COMP( cv[IX(l)], cv[IX(l+1)] );
if ( match > 0 ) {
EXCH(l, l+1);
} else if ( match == 0 ) {
i = l;
break;
}
i = l+1;
j = ir;
a = cv[IX(i)];
for(;;) {
do {
i++;
COMP( cv[IX(i)], a );
} while( match < 0 );
while( match > 0 ) {
j--;
COMP( cv[IX(j)], a );
}
if (j < i) {
match = 1;
break;
}
if ( match == 0 ) {
i = l+1;
break;
}
EXCH(i,j);
}
if ( match == 0 )
break;
EXCH(l+1,j);
jstack += 2;
if (ir-i+1 >= j) {
istack[jstack] = ir;
istack[jstack-1] = i;
ir = j;
} else {
istack[jstack] = j;
istack[jstack-1] = l;
l = i;
}
}
}
done:
if ( match == 0 && i >= 0 )
*dup = ix[i];
/* For sorted attributes, put the values in index order */
if ( rc == LDAP_SUCCESS && match &&
( ad->ad_type->sat_flags & SLAP_AT_SORTED_VAL )) {
BerVarray tmpv = slap_sl_malloc( sizeof( struct berval ) * nvals, ctx );
for ( i = 0; i<nvals; i++ )
tmpv[i] = cv[ix[i]];
for ( i = 0; i<nvals; i++ )
cv[i] = tmpv[i];
/* Check if the non-normalized array needs to move too */
if ( is_norm ) {
cv = ml->sml_values;
for ( i = 0; i<nvals; i++ )
tmpv[i] = cv[ix[i]];
for ( i = 0; i<nvals; i++ )
cv[i] = tmpv[i];
}
slap_sl_free( tmpv, ctx );
}
slap_sl_free( ix, ctx );
if ( rc == LDAP_SUCCESS && match == 0 ) {
/* value exists already */
assert( i >= 0 );
assert( i < nvals );
rc = LDAP_TYPE_OR_VALUE_EXISTS;
}
ret:
return rc;
}
/* Enter with bv->bv_len = sizeof buffer, returns with
* actual length of string
*/
void slap_timestamp( time_t *tm, struct berval *bv )
{
struct tm ltm;
ldap_pvt_gmtime( tm, &ltm );
bv->bv_len = lutil_gentime( bv->bv_val, bv->bv_len, &ltm );
}
/* Called for all modify and modrdn ops. If the current op was replicated
* from elsewhere, all of the attrs should already be present.
*/
void slap_mods_opattrs(
Operation *op,
Modifications **modsp,
int manage_ctxcsn )
{
struct berval name, timestamp, csn = BER_BVNULL;
struct berval nname;
char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
Modifications *mod, **modtail, *modlast;
int gotcsn = 0, gotmname = 0, gotmtime = 0;
if ( SLAP_LASTMOD( op->o_bd ) && !op->orm_no_opattrs ) {
char *ptr;
timestamp.bv_val = timebuf;
for ( modtail = modsp; *modtail; modtail = &(*modtail)->sml_next ) {
if ( (*modtail)->sml_op != LDAP_MOD_ADD &&
(*modtail)->sml_op != SLAP_MOD_SOFTADD &&
(*modtail)->sml_op != SLAP_MOD_ADD_IF_NOT_PRESENT &&
(*modtail)->sml_op != LDAP_MOD_REPLACE )
{
continue;
}
if ( (*modtail)->sml_desc == slap_schema.si_ad_entryCSN )
{
csn = (*modtail)->sml_values[0];
gotcsn = 1;
} else if ( (*modtail)->sml_desc == slap_schema.si_ad_modifiersName )
{
gotmname = 1;
} else if ( (*modtail)->sml_desc == slap_schema.si_ad_modifyTimestamp )
{
gotmtime = 1;
}
}
if ( BER_BVISEMPTY( &op->o_csn )) {
if ( !gotcsn ) {
csn.bv_val = csnbuf;
csn.bv_len = sizeof( csnbuf );
slap_get_csn( op, &csn, manage_ctxcsn );
} else {
if ( manage_ctxcsn ) {
slap_queue_csn( op, &csn );
}
}
} else {
csn = op->o_csn;
}
ptr = ber_bvchr( &csn, '#' );
if ( ptr ) {
timestamp.bv_len = STRLENOF("YYYYMMDDHHMMSSZ");
AC_MEMCPY( timebuf, csn.bv_val, timestamp.bv_len );
timebuf[timestamp.bv_len-1] = 'Z';
timebuf[timestamp.bv_len] = '\0';
} else {
time_t now = slap_get_time();
timestamp.bv_len = sizeof(timebuf);
slap_timestamp( &now, &timestamp );
}
if ( BER_BVISEMPTY( &op->o_dn ) ) {
BER_BVSTR( &name, SLAPD_ANONYMOUS );
nname = name;
} else {
name = op->o_dn;
nname = op->o_ndn;
}
if ( !gotcsn ) {
mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
mod->sml_op = LDAP_MOD_REPLACE;
mod->sml_flags = SLAP_MOD_INTERNAL;
mod->sml_next = NULL;
BER_BVZERO( &mod->sml_type );
mod->sml_desc = slap_schema.si_ad_entryCSN;
mod->sml_numvals = 1;
mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
ber_dupbv( &mod->sml_values[0], &csn );
BER_BVZERO( &mod->sml_values[1] );
assert( !BER_BVISNULL( &mod->sml_values[0] ) );
mod->sml_nvalues = NULL;
*modtail = mod;
modlast = mod;
modtail = &mod->sml_next;
}
if ( !gotmname ) {
mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
mod->sml_op = LDAP_MOD_REPLACE;
mod->sml_flags = SLAP_MOD_INTERNAL;
mod->sml_next = NULL;
BER_BVZERO( &mod->sml_type );
mod->sml_desc = slap_schema.si_ad_modifiersName;
mod->sml_numvals = 1;
mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
ber_dupbv( &mod->sml_values[0], &name );
BER_BVZERO( &mod->sml_values[1] );
assert( !BER_BVISNULL( &mod->sml_values[0] ) );
mod->sml_nvalues =
(BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
ber_dupbv( &mod->sml_nvalues[0], &nname );
BER_BVZERO( &mod->sml_nvalues[1] );
assert( !BER_BVISNULL( &mod->sml_nvalues[0] ) );
*modtail = mod;
modtail = &mod->sml_next;
}
if ( !gotmtime ) {
mod = (Modifications *) ch_malloc( sizeof( Modifications ) );
mod->sml_op = LDAP_MOD_REPLACE;
mod->sml_flags = SLAP_MOD_INTERNAL;
mod->sml_next = NULL;
BER_BVZERO( &mod->sml_type );
mod->sml_desc = slap_schema.si_ad_modifyTimestamp;
mod->sml_numvals = 1;
mod->sml_values = (BerVarray) ch_malloc( 2 * sizeof( struct berval ) );
ber_dupbv( &mod->sml_values[0], &timestamp );
BER_BVZERO( &mod->sml_values[1] );
assert( !BER_BVISNULL( &mod->sml_values[0] ) );
mod->sml_nvalues = NULL;
*modtail = mod;
modtail = &mod->sml_next;
}
}
}
int
slap_parse_modlist(
Operation *op,
SlapReply *rs,
BerElement *ber,
req_modify_s *ms )
{
ber_tag_t tag;
ber_len_t len;
char *last;
Modifications **modtail = &ms->rs_mods.rs_modlist;
ms->rs_mods.rs_modlist = NULL;
ms->rs_increment = 0;
rs->sr_err = LDAP_SUCCESS;
/* collect modifications & save for later */
for ( tag = ber_first_element( ber, &len, &last );
tag != LBER_DEFAULT;
tag = ber_next_element( ber, &len, last ) )
{
ber_int_t mop;
Modifications tmp, *mod;
tmp.sml_nvalues = NULL;
if ( ber_scanf( ber, "{e{m[W]}}", &mop,
&tmp.sml_type, &tmp.sml_values ) == LBER_ERROR )
{
rs->sr_text = "decoding modlist error";
rs->sr_err = LDAP_PROTOCOL_ERROR;
goto done;
}
mod = (Modifications *) ch_malloc( sizeof(Modifications) );
mod->sml_op = mop;
mod->sml_flags = 0;
mod->sml_type = tmp.sml_type;
mod->sml_values = tmp.sml_values;
mod->sml_nvalues = NULL;
mod->sml_desc = NULL;
mod->sml_next = NULL;
*modtail = mod;
switch( mop ) {
case LDAP_MOD_ADD:
if ( mod->sml_values == NULL ) {
rs->sr_text = "modify/add operation requires values";
rs->sr_err = LDAP_PROTOCOL_ERROR;
goto done;
}
/* fall through */
case LDAP_MOD_DELETE:
case LDAP_MOD_REPLACE:
break;
case LDAP_MOD_INCREMENT:
if( op->o_protocol >= LDAP_VERSION3 ) {
ms->rs_increment++;
if ( mod->sml_values == NULL ) {
rs->sr_text = "modify/increment operation requires value";
rs->sr_err = LDAP_PROTOCOL_ERROR;
goto done;
}
if ( !BER_BVISNULL( &mod->sml_values[ 1 ] ) ) {
rs->sr_text = "modify/increment operation requires single value";
rs->sr_err = LDAP_PROTOCOL_ERROR;
goto done;
}
break;
}
/* fall thru */
default:
rs->sr_text = "unrecognized modify operation";
rs->sr_err = LDAP_PROTOCOL_ERROR;
goto done;
}
modtail = &mod->sml_next;
}
*modtail = NULL;
done:
if ( rs->sr_err != LDAP_SUCCESS ) {
slap_mods_free( ms->rs_mods.rs_modlist, 1 );
ms->rs_mods.rs_modlist = NULL;
ms->rs_increment = 0;
}
return rs->sr_err;
}
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