/* limits.c - routines to handle regex-based size and time limits */
-/*
- * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2004 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>.
*/
#include "portable.h"
#include "slap.h"
int
-get_limits(
- Backend *be,
+limits_get(
+ Operation *op,
struct berval *ndn,
struct slap_limits_set **limit
)
{
struct slap_limits **lm;
- assert( be );
+ assert( op );
assert( limit );
/*
* default values
*/
- *limit = &be->be_def_limit;
+ *limit = &op->o_bd->be_def_limit;
- if ( be->be_limits == NULL ) {
+ if ( op->o_bd->be_limits == NULL ) {
return( 0 );
}
- for ( lm = be->be_limits; lm[0] != NULL; lm++ ) {
- switch ( lm[0]->lm_type ) {
+ for ( lm = op->o_bd->be_limits; lm[0] != NULL; lm++ ) {
+ unsigned style = lm[0]->lm_flags & SLAP_LIMITS_MASK;
+ unsigned type = lm[0]->lm_flags & SLAP_LIMITS_TYPE_MASK;
+
+ switch ( style ) {
case SLAP_LIMITS_EXACT:
if ( ndn->bv_len == 0 ) {
break;
}
- if ( dn_match( &lm[0]->lm_dn_pat, ndn ) ) {
+
+ if ( type == SLAP_LIMITS_TYPE_GROUP ) {
+ int rc;
+
+ rc = backend_group( op, NULL,
+ &lm[0]->lm_pat, ndn,
+ lm[0]->lm_group_oc,
+ lm[0]->lm_group_ad );
+ if ( rc == 0 ) {
+ *limit = &lm[0]->lm_limits;
+ return( 0 );
+ }
+ }
+
+ if ( dn_match( &lm[0]->lm_pat, ndn ) ) {
*limit = &lm[0]->lm_limits;
return( 0 );
}
}
/* ndn shorter than dn_pat */
- if ( ndn->bv_len < lm[0]->lm_dn_pat.bv_len ) {
+ if ( ndn->bv_len < lm[0]->lm_pat.bv_len ) {
break;
}
- d = ndn->bv_len - lm[0]->lm_dn_pat.bv_len;
+ d = ndn->bv_len - lm[0]->lm_pat.bv_len;
/* allow exact match for SUBTREE only */
if ( d == 0 ) {
- if ( lm[0]->lm_type != SLAP_LIMITS_SUBTREE ) {
+ if ( style != SLAP_LIMITS_SUBTREE ) {
break;
}
} else {
}
/* in case of (sub)match ... */
- if ( lm[0]->lm_dn_pat.bv_len == ( ndn->bv_len - d )
- && strcmp( lm[0]->lm_dn_pat.bv_val, &ndn->bv_val[d] ) == 0 ) {
+ if ( lm[0]->lm_pat.bv_len == ( ndn->bv_len - d )
+ && strcmp( lm[0]->lm_pat.bv_val,
+ &ndn->bv_val[d] ) == 0 )
+ {
/* check for exactly one rdn in case of ONE */
- if ( lm[0]->lm_type == SLAP_LIMITS_ONE ) {
+ if ( style == SLAP_LIMITS_ONE ) {
/*
* if ndn is more that one rdn
* below dn_pat, continue
*/
- if ( (size_t) dn_rdnlen( NULL, ndn ) != d - 1 ) {
+ if ( (size_t) dn_rdnlen( NULL, ndn )
+ != d - 1 )
+ {
break;
}
}
if ( ndn->bv_len == 0 ) {
break;
}
- if ( regexec( &lm[0]->lm_dn_regex, ndn->bv_val, 0, NULL, 0 )
- == 0 )
+ if ( regexec( &lm[0]->lm_regex, ndn->bv_val,
+ 0, NULL, 0 ) == 0 )
{
*limit = &lm[0]->lm_limits;
return( 0 );
}
static int
-add_limits(
+limits_add(
Backend *be,
- int type,
+ unsigned flags,
const char *pattern,
+ ObjectClass *group_oc,
+ AttributeDescription *group_ad,
struct slap_limits_set *limit
)
{
int i;
struct slap_limits *lm;
+ unsigned type, style;
assert( be );
assert( limit );
- switch ( type ) {
+ type = flags & SLAP_LIMITS_TYPE_MASK;
+ style = flags & SLAP_LIMITS_MASK;
+
+ switch ( style ) {
case SLAP_LIMITS_ANONYMOUS:
case SLAP_LIMITS_USERS:
case SLAP_LIMITS_ANY:
for ( i = 0; be->be_limits && be->be_limits[ i ]; i++ ) {
- if ( be->be_limits[ i ]->lm_type == type ) {
+ if ( be->be_limits[ i ]->lm_flags == style ) {
return( -1 );
}
}
lm = ( struct slap_limits * )ch_calloc( sizeof( struct slap_limits ), 1 );
- switch ( type ) {
+ switch ( style ) {
+ case SLAP_LIMITS_UNDEFINED:
+ style = SLAP_LIMITS_EXACT;
+ /* continue to next cases */
case SLAP_LIMITS_EXACT:
case SLAP_LIMITS_ONE:
case SLAP_LIMITS_SUBTREE:
case SLAP_LIMITS_CHILDREN:
- lm->lm_type = type;
+ lm->lm_flags = style | type;
{
int rc;
struct berval bv;
bv.bv_val = (char *) pattern;
bv.bv_len = strlen( pattern );
- rc = dnNormalize2( NULL, &bv, &lm->lm_dn_pat, NULL );
+ rc = dnNormalize( 0, NULL, NULL, &bv, &lm->lm_pat, NULL );
if ( rc != LDAP_SUCCESS ) {
ch_free( lm );
return( -1 );
break;
case SLAP_LIMITS_REGEX:
- case SLAP_LIMITS_UNDEFINED:
- lm->lm_type = SLAP_LIMITS_REGEX;
- ber_str2bv( pattern, 0, 1, &lm->lm_dn_pat );
- if ( regcomp( &lm->lm_dn_regex, lm->lm_dn_pat.bv_val,
+ lm->lm_flags = style | type;
+ ber_str2bv( pattern, 0, 1, &lm->lm_pat );
+ if ( regcomp( &lm->lm_regex, lm->lm_pat.bv_val,
REG_EXTENDED | REG_ICASE ) ) {
- free( lm->lm_dn_pat.bv_val );
+ free( lm->lm_pat.bv_val );
ch_free( lm );
return( -1 );
}
case SLAP_LIMITS_ANONYMOUS:
case SLAP_LIMITS_USERS:
case SLAP_LIMITS_ANY:
- lm->lm_type = type;
- lm->lm_dn_pat.bv_val = NULL;
- lm->lm_dn_pat.bv_len = 0;
+ lm->lm_flags = style | type;
+ lm->lm_pat.bv_val = NULL;
+ lm->lm_pat.bv_len = 0;
+ break;
+ }
+
+ switch ( type ) {
+ case SLAP_LIMITS_TYPE_GROUP:
+ assert( group_oc );
+ assert( group_ad );
+ lm->lm_group_oc = group_oc;
+ lm->lm_group_ad = group_ad;
break;
}
}
int
-parse_limits(
+limits_parse(
Backend *be,
const char *fname,
int lineno,
char **argv
)
{
- int type = SLAP_LIMITS_UNDEFINED;
- char *pattern;
- struct slap_limits_set limit;
- int i, rc = 0;
+ int flags = SLAP_LIMITS_UNDEFINED;
+ char *pattern;
+ struct slap_limits_set limit;
+ int i, rc = 0;
+ ObjectClass *group_oc = NULL;
+ AttributeDescription *group_ad = NULL;
assert( be );
*
* "anonymous"
* "users"
- * [ "dn" [ "." { "exact" | "base" | "one" | "sub" | children"
+ * [ "dn" [ "." { "exact" | "base" | "onelevel" | "subtree" | children"
* | "regex" | "anonymous" } ] "=" ] <dn pattern>
*
* Note:
* "exact" and "base" are the same (exact match);
- * "one" means exactly one rdn below, NOT including the pattern
- * "sub" means any rdn below, including the pattern
- * "children" means any rdn below, NOT including the pattern
+ * "onelevel" means exactly one rdn below, NOT including pattern
+ * "subtree" means any rdn below, including pattern
+ * "children" means any rdn below, NOT including pattern
*
* "anonymous" may be deprecated in favour
* of the pattern = "anonymous" form
*
+ * "group[/objectClass[/attributeType]]" "=" "<dn pattern>"
*
* <limit>:
*
pattern = argv[1];
if ( strcmp( pattern, "*" ) == 0) {
- type = SLAP_LIMITS_ANY;
+ flags = SLAP_LIMITS_ANY;
} else if ( strcasecmp( pattern, "anonymous" ) == 0 ) {
- type = SLAP_LIMITS_ANONYMOUS;
+ flags = SLAP_LIMITS_ANONYMOUS;
} else if ( strcasecmp( pattern, "users" ) == 0 ) {
- type = SLAP_LIMITS_USERS;
+ flags = SLAP_LIMITS_USERS;
- } else if ( strncasecmp( pattern, "dn", sizeof( "dn") - 1 ) == 0 ) {
- pattern += 2;
+ } else if ( strncasecmp( pattern, "dn", sizeof( "dn" ) - 1 ) == 0 ) {
+ pattern += sizeof( "dn" ) - 1;
if ( pattern[0] == '.' ) {
pattern++;
if ( strncasecmp( pattern, "exact", sizeof( "exact" ) - 1 ) == 0 ) {
- type = SLAP_LIMITS_EXACT;
- pattern += 5;
+ flags = SLAP_LIMITS_EXACT;
+ pattern += sizeof( "exact" ) - 1;
- } else if ( strncasecmp( pattern, "base", sizeof( "base " ) - 1 ) == 0 ) {
- type = SLAP_LIMITS_BASE;
- pattern += 4;
+ } else if ( strncasecmp( pattern, "base", sizeof( "base" ) - 1 ) == 0 ) {
+ flags = SLAP_LIMITS_BASE;
+ pattern += sizeof( "base" ) - 1;
} else if ( strncasecmp( pattern, "one", sizeof( "one" ) - 1 ) == 0 ) {
- type = SLAP_LIMITS_ONE;
- pattern += 3;
+ flags = SLAP_LIMITS_ONE;
+ pattern += sizeof( "one" ) - 1;
+ if ( strncasecmp( pattern, "level", sizeof( "level" ) - 1 ) == 0 ) {
+ pattern += sizeof( "level" ) - 1;
+
+ } else {
+#ifdef NEW_LOGGING
+ LDAP_LOG( CONFIG, WARNING ,
+ "%s : line %d: deprecated \"one\" style "
+ "\"limits <pattern> <limits>\" line; "
+ "use \"onelevel\" instead.\n", fname, lineno, 0 );
+#else
+ Debug( LDAP_DEBUG_ANY,
+ "%s : line %d: deprecated \"one\" style "
+ "\"limits <pattern> <limits>\" line; "
+ "use \"onelevel\" instead.\n", fname, lineno, 0 );
+#endif
+ }
- } else if ( strncasecmp( pattern, "subtree", sizeof( "subtree" ) - 1 ) == 0 ) {
- type = SLAP_LIMITS_SUBTREE;
- pattern += 7;
+ } else if ( strncasecmp( pattern, "sub", sizeof( "sub" ) - 1 ) == 0 ) {
+ flags = SLAP_LIMITS_SUBTREE;
+ pattern += sizeof( "sub" ) - 1;
+ if ( strncasecmp( pattern, "tree", sizeof( "tree" ) - 1 ) == 0 ) {
+ pattern += sizeof( "tree" ) - 1;
+
+ } else {
+#ifdef NEW_LOGGING
+ LDAP_LOG( CONFIG, WARNING ,
+ "%s : line %d: deprecated \"sub\" style "
+ "\"limits <pattern> <limits>\" line; "
+ "use \"subtree\" instead.\n", fname, lineno, 0 );
+#else
+ Debug( LDAP_DEBUG_ANY,
+ "%s : line %d: deprecated \"sub\" style "
+ "\"limits <pattern> <limits>\" line; "
+ "use \"subtree\" instead.\n", fname, lineno, 0 );
+#endif
+ }
} else if ( strncasecmp( pattern, "children", sizeof( "children" ) - 1 ) == 0 ) {
- type = SLAP_LIMITS_CHILDREN;
- pattern += 8;
+ flags = SLAP_LIMITS_CHILDREN;
+ pattern += sizeof( "children" ) - 1;
} else if ( strncasecmp( pattern, "regex", sizeof( "regex" ) - 1 ) == 0 ) {
- type = SLAP_LIMITS_REGEX;
- pattern += 5;
+ flags = SLAP_LIMITS_REGEX;
+ pattern += sizeof( "regex" ) - 1;
/*
* this could be deprecated in favour
* of the pattern = "anonymous" form
*/
} else if ( strncasecmp( pattern, "anonymous", sizeof( "anonymous" ) - 1 ) == 0 ) {
- type = SLAP_LIMITS_ANONYMOUS;
+ flags = SLAP_LIMITS_ANONYMOUS;
pattern = NULL;
}
}
/* pre-check the data */
- switch ( type ) {
+ switch ( flags ) {
case SLAP_LIMITS_ANONYMOUS:
case SLAP_LIMITS_USERS:
#ifdef NEW_LOGGING
LDAP_LOG( CONFIG, CRIT,
"%s : line %d: missing '=' in "
- "\"dn[.{exact|base|one|subtree"
+ "\"dn[.{exact|base|onelevel|subtree"
"|children|regex|anonymous}]" "=<pattern>\" in "
"\"limits <pattern> <limits>\" line.\n", fname, lineno, 0 );
#else
Debug( LDAP_DEBUG_ANY,
"%s : line %d: missing '=' in "
- "\"dn[.{exact|base|one|subtree"
+ "\"dn[.{exact|base|onelevel|subtree"
"|children|regex|anonymous}]"
"=<pattern>\" in "
"\"limits <pattern> <limits>\" "
/* trim obvious cases */
if ( strcmp( pattern, "*" ) == 0 ) {
- type = SLAP_LIMITS_ANY;
+ flags = SLAP_LIMITS_ANY;
pattern = NULL;
- } else if ( ( type == SLAP_LIMITS_REGEX || type == SLAP_LIMITS_UNDEFINED )
+ } else if ( flags == SLAP_LIMITS_REGEX
&& strcmp( pattern, ".*" ) == 0 ) {
- type = SLAP_LIMITS_ANY;
+ flags = SLAP_LIMITS_ANY;
pattern = NULL;
}
}
+
+ } else if (strncasecmp( pattern, "group", sizeof( "group" ) - 1 ) == 0 ) {
+ pattern += sizeof( "group" ) - 1;
+
+ if ( pattern[0] == '/' ) {
+ struct berval oc, ad;
+
+ oc.bv_val = pattern + 1;
+
+ ad.bv_val = strchr(pattern, '/');
+ if ( ad.bv_val != NULL ) {
+ const char *text = NULL;
+ int rc;
+
+ oc.bv_len = ad.bv_val - oc.bv_val;
+
+ ad.bv_val++;
+ ad.bv_len = strlen( ad.bv_val );
+ rc = slap_bv2ad( &ad, &group_ad, &text );
+ if ( rc != LDAP_SUCCESS ) {
+ goto no_ad;
+ }
+
+ pattern = ad.bv_val + ad.bv_len;
+
+ } else {
+ oc.bv_len = strlen( oc.bv_val );
+
+ pattern = oc.bv_val + oc.bv_len;
+ }
+
+ group_oc = oc_bvfind( &oc );
+ if ( group_oc == NULL ) {
+ goto no_oc;
+ }
+ }
+
+ if ( group_oc == NULL ) {
+ group_oc = oc_find( SLAPD_GROUP_CLASS );
+ if ( group_oc == NULL ) {
+no_oc:;
+ return( -1 );
+ }
+ }
+
+ if ( group_ad == NULL ) {
+ const char *text = NULL;
+ int rc;
+
+ rc = slap_str2ad( SLAPD_GROUP_ATTR, &group_ad, &text );
+
+ if ( rc != LDAP_SUCCESS ) {
+no_ad:;
+ return( -1 );
+ }
+ }
+
+ flags = SLAP_LIMITS_TYPE_GROUP | SLAP_LIMITS_EXACT;
+
+ if ( pattern[0] != '=' ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG( CONFIG, CRIT,
+ "%s : line %d: missing '=' in "
+ "\"group[/objectClass[/attributeType]]"
+ "=<pattern>\" in "
+ "\"limits <pattern> <limits>\" line.\n",
+ fname, lineno, 0 );
+#else
+ Debug( LDAP_DEBUG_ANY,
+ "%s : line %d: missing '=' in "
+ "\"group[/objectClass[/attributeType]]"
+ "=<pattern>\" in "
+ "\"limits <pattern> <limits>\" line.\n",
+ fname, lineno, 0 );
+#endif
+ return( -1 );
+ }
+
+ /* skip '=' (required) */
+ pattern++;
}
/* get the limits */
for ( i = 2; i < argc; i++ ) {
- if ( parse_limit( argv[i], &limit ) ) {
+ if ( limits_parse_one( argv[i], &limit ) ) {
#ifdef NEW_LOGGING
LDAP_LOG( CONFIG, CRIT,
- "%s : line %d: unknown limit type \"%s\" in "
+ "%s : line %d: unknown limit values \"%s\" in "
"\"limits <pattern> <limits>\" line.\n",
fname, lineno, argv[i] );
#else
Debug( LDAP_DEBUG_ANY,
- "%s : line %d: unknown limit type \"%s\" in "
+ "%s : line %d: unknown limit values \"%s\" in "
"\"limits <pattern> <limits>\" line.\n",
fname, lineno, argv[i] );
#endif
limit.lms_s_hard = limit.lms_s_soft;
}
- rc = add_limits( be, type, pattern, &limit );
+ rc = limits_add( be, flags, pattern, group_oc, group_ad, &limit );
if ( rc ) {
#ifdef NEW_LOGGING
}
int
-parse_limit(
+limits_parse_one(
const char *arg,
struct slap_limits_set *limit
)
return 0;
}
+
+int
+limits_check( Operation *op, SlapReply *rs )
+{
+ assert( op );
+ assert( rs );
+ /* FIXME: should this be always true? */
+ assert( op->o_tag == LDAP_REQ_SEARCH);
+
+ /* allow root to set no limit */
+ if ( be_isroot( op ) ) {
+ op->ors_limit = NULL;
+
+ if ( op->ors_tlimit == 0 ) {
+ op->ors_tlimit = -1;
+ }
+
+ if ( op->ors_slimit == 0 ) {
+ op->ors_slimit = -1;
+ }
+
+ /* if not root, get appropriate limits */
+ } else {
+ ( void ) limits_get( op, &op->o_ndn, &op->ors_limit );
+
+ assert( op->ors_limit != NULL );
+
+ /* if no limit is required, use soft limit */
+ if ( op->ors_tlimit <= 0 ) {
+ op->ors_tlimit = op->ors_limit->lms_t_soft;
+
+ /* if requested limit higher than hard limit, abort */
+ } else if ( op->ors_tlimit > op->ors_limit->lms_t_hard ) {
+ /* no hard limit means use soft instead */
+ if ( op->ors_limit->lms_t_hard == 0
+ && op->ors_limit->lms_t_soft > -1
+ && op->ors_tlimit > op->ors_limit->lms_t_soft ) {
+ op->ors_tlimit = op->ors_limit->lms_t_soft;
+
+ /* positive hard limit means abort */
+ } else if ( op->ors_limit->lms_t_hard > 0 ) {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ return -1;
+ }
+
+ /* negative hard limit means no limit */
+ }
+
+ /* if no limit is required, use soft limit */
+ if ( op->ors_slimit <= 0 ) {
+ if ( get_pagedresults( op ) && op->ors_limit->lms_s_pr != 0 ) {
+ op->ors_slimit = op->ors_limit->lms_s_pr;
+ } else {
+ op->ors_slimit = op->ors_limit->lms_s_soft;
+ }
+
+ /* if requested limit higher than hard limit, abort */
+ } else if ( op->ors_slimit > op->ors_limit->lms_s_hard ) {
+ /* no hard limit means use soft instead */
+ if ( op->ors_limit->lms_s_hard == 0
+ && op->ors_limit->lms_s_soft > -1
+ && op->ors_slimit > op->ors_limit->lms_s_soft ) {
+ op->ors_slimit = op->ors_limit->lms_s_soft;
+
+ /* positive hard limit means abort */
+ } else if ( op->ors_limit->lms_s_hard > 0 ) {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ return -1;
+ }
+
+ /* negative hard limit means no limit */
+ }
+ }
+
+ return 0;
+}
+
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