/* limits.c - routines to handle regex-based size and time limits */
-/*
- * Copyright 1998-2002 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"
+/* define to get an error if requesting limit higher than hard */
+#undef ABOVE_HARD_LIMIT_IS_ERROR
+
+static char *
+limits2str( unsigned i )
+{
+ switch ( i ) {
+ case SLAP_LIMITS_UNDEFINED:
+ return "UNDEFINED";
+
+ case SLAP_LIMITS_EXACT:
+ return "EXACT";
+
+ case SLAP_LIMITS_ONE:
+ return "ONELEVEL";
+
+ case SLAP_LIMITS_SUBTREE:
+ return "SUBTREE";
+
+ case SLAP_LIMITS_CHILDREN:
+ return "CHILDREN";
+
+ case SLAP_LIMITS_REGEX:
+ return "REGEX";
+
+ case SLAP_LIMITS_ANONYMOUS:
+ return "ANONYMOUS";
+
+ case SLAP_LIMITS_USERS:
+ return "USERS";
+
+ case SLAP_LIMITS_ANY:
+ return "ANY";
+
+ default:
+ return "UNKNOWN";
+ }
+}
+
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 );
+ Debug( LDAP_DEBUG_TRACE, "==> limits_get: %s dn=\"%s\"\n",
+ op->o_log_prefix,
+ BER_BVISNULL( ndn ) ? "[anonymous]" : ndn->bv_val, 0 );
/*
* 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 ( strcmp( lm[0]->lm_dn_pat.bv_val, ndn->bv_val ) == 0 ) {
- *limit = &lm[0]->lm_limits;
- return( 0 );
+
+ 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;
+ Debug( LDAP_DEBUG_TRACE, "<== limits_get: type=GROUP match=EXACT "
+ "dn=\"%s\" oc=\"%s\" ad=\"%s\"\n",
+ lm[0]->lm_pat.bv_val,
+ lm[0]->lm_group_oc->soc_cname.bv_val,
+ lm[0]->lm_group_ad->ad_cname.bv_val );
+
+ return( 0 );
+ }
+ } else {
+
+ if ( dn_match( &lm[0]->lm_pat, ndn ) ) {
+ *limit = &lm[0]->lm_limits;
+ Debug( LDAP_DEBUG_TRACE, "<== limits_get: type=DN match=EXACT dn=\"%s\"\n",
+ lm[0]->lm_pat.bv_val, 0, 0 );
+ return( 0 );
+ }
}
break;
break;
}
- d = ndn->bv_len - lm[0]->lm_dn_pat.bv_len;
/* ndn shorter than dn_pat */
- if ( d < 0 ) {
+ if ( ndn->bv_len < lm[0]->lm_pat.bv_len ) {
break;
}
+ 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 {
/* check for unescaped rdn separator */
- if ( !DN_SEPARATOR( ndn->bv_val[d-1] )
- || DN_ESCAPE( ndn->bv_val[d-2] ) )
- {
+ if ( !DN_SEPARATOR( ndn->bv_val[d-1] ) ) {
break;
}
}
/* in case of (sub)match ... */
- if ( 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;
}
}
*limit = &lm[0]->lm_limits;
+ Debug( LDAP_DEBUG_TRACE, "<== limits_get: type=DN match=%s dn=\"%s\"\n",
+ limits2str( style ), lm[0]->lm_pat.bv_val, 0 );
return( 0 );
}
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;
+ Debug( LDAP_DEBUG_TRACE, "<== limits_get: type=DN match=%s dn=\"%s\"\n",
+ limits2str( style ), lm[0]->lm_pat.bv_val, 0 );
return( 0 );
}
break;
case SLAP_LIMITS_ANONYMOUS:
if ( ndn->bv_len == 0 ) {
+ Debug( LDAP_DEBUG_TRACE, "<== limits_get: type=DN match=%s\n",
+ limits2str( style ), 0, 0 );
*limit = &lm[0]->lm_limits;
return( 0 );
}
case SLAP_LIMITS_USERS:
if ( ndn->bv_len != 0 ) {
*limit = &lm[0]->lm_limits;
+ Debug( LDAP_DEBUG_TRACE, "<== limits_get: type=DN match=%s\n",
+ limits2str( style ), 0, 0 );
return( 0 );
}
break;
+ case SLAP_LIMITS_ANY:
+ *limit = &lm[0]->lm_limits;
+ return( 0 );
+
default:
assert( 0 ); /* unreachable */
return( -1 );
}
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 );
+ 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_flags == style ) {
+ return( -1 );
+ }
+ }
+ break;
+ }
+
+
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 );
+ 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:
- lm->lm_type = type;
- lm->lm_dn_pat.bv_val = NULL;
- lm->lm_dn_pat.bv_len = 0;
+ case SLAP_LIMITS_ANY:
+ 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;
+ 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 );
if ( argc < 3 ) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
- "%s : line %d: missing arg(s) in "
- "\"limits <pattern> <limits>\" line.\n",
- fname, lineno ));
-#else
Debug( LDAP_DEBUG_ANY,
"%s : line %d: missing arg(s) in "
"\"limits <pattern> <limits>\" line.\n%s",
fname, lineno, "" );
-#endif
return( -1 );
}
*
* "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 ( strcasecmp( pattern, "anonymous" ) == 0 ) {
- type = SLAP_LIMITS_ANONYMOUS;
+ if ( strcmp( pattern, "*" ) == 0) {
+ flags = SLAP_LIMITS_ANY;
+
+ } else if ( strcasecmp( pattern, "anonymous" ) == 0 ) {
+ flags = SLAP_LIMITS_ANONYMOUS;
} else if ( strcasecmp( pattern, "users" ) == 0 ) {
- type = SLAP_LIMITS_USERS;
+ flags = SLAP_LIMITS_USERS;
- } else if ( strncasecmp( pattern, "dn", 2 ) == 0 ) {
- pattern += 2;
+ } else if ( strncasecmp( pattern, "dn", STRLENOF( "dn" ) ) == 0 ) {
+ pattern += STRLENOF( "dn" );
if ( pattern[0] == '.' ) {
pattern++;
- if ( strncasecmp( pattern, "exact", 5 ) == 0 ) {
- type = SLAP_LIMITS_EXACT;
- pattern += 5;
+ if ( strncasecmp( pattern, "exact", STRLENOF( "exact" )) == 0 ) {
+ flags = SLAP_LIMITS_EXACT;
+ pattern += STRLENOF( "exact" );
+
+ } else if ( strncasecmp( pattern, "base", STRLENOF( "base" ) ) == 0 ) {
+ flags = SLAP_LIMITS_BASE;
+ pattern += STRLENOF( "base" );
+
+ } else if ( strncasecmp( pattern, "one", STRLENOF( "one" ) ) == 0 ) {
+ flags = SLAP_LIMITS_ONE;
+ pattern += STRLENOF( "one" );
+ if ( strncasecmp( pattern, "level", STRLENOF( "level" ) ) == 0 ) {
+ pattern += STRLENOF( "level" );
- } else if ( strncasecmp( pattern, "base", 4 ) == 0 ) {
- type = SLAP_LIMITS_BASE;
- pattern += 4;
+ } else {
+ Debug( LDAP_DEBUG_ANY,
+ "%s : line %d: deprecated \"one\" style "
+ "\"limits <pattern> <limits>\" line; "
+ "use \"onelevel\" instead.\n", fname, lineno, 0 );
+ }
- } else if ( strncasecmp( pattern, "one", 3 ) == 0 ) {
- type = SLAP_LIMITS_ONE;
- pattern += 3;
+ } else if ( strncasecmp( pattern, "sub", STRLENOF( "sub" ) ) == 0 ) {
+ flags = SLAP_LIMITS_SUBTREE;
+ pattern += STRLENOF( "sub" );
+ if ( strncasecmp( pattern, "tree", STRLENOF( "tree" ) ) == 0 ) {
+ pattern += STRLENOF( "tree" );
- } else if ( strncasecmp( pattern, "subtree", 7 ) == 0 ) {
- type = SLAP_LIMITS_SUBTREE;
- pattern += 7;
+ } else {
+ Debug( LDAP_DEBUG_ANY,
+ "%s : line %d: deprecated \"sub\" style "
+ "\"limits <pattern> <limits>\" line; "
+ "use \"subtree\" instead.\n", fname, lineno, 0 );
+ }
- } else if ( strncasecmp( pattern, "children", 8 ) == 0 ) {
- type = SLAP_LIMITS_CHILDREN;
- pattern += 8;
+ } else if ( strncasecmp( pattern, "children", STRLENOF( "children" ) ) == 0 ) {
+ flags = SLAP_LIMITS_CHILDREN;
+ pattern += STRLENOF( "children" );
- } else if ( strncasecmp( pattern, "regex", 5 ) == 0 ) {
- type = SLAP_LIMITS_REGEX;
- pattern += 5;
+ } else if ( strncasecmp( pattern, "regex", STRLENOF( "regex" ) ) == 0 ) {
+ flags = SLAP_LIMITS_REGEX;
+ pattern += STRLENOF( "regex" );
/*
* this could be deprecated in favour
* of the pattern = "anonymous" form
*/
- } else if ( strncasecmp( pattern, "anonymous", 9 ) == 0 ) {
- type = SLAP_LIMITS_ANONYMOUS;
+ } else if ( strncasecmp( pattern, "anonymous", STRLENOF( "anonymous" ) ) == 0 ) {
+ flags = SLAP_LIMITS_ANONYMOUS;
pattern = NULL;
}
}
/* pre-check the data */
- switch ( type ) {
+ switch ( flags ) {
case SLAP_LIMITS_ANONYMOUS:
case SLAP_LIMITS_USERS:
default:
if ( pattern[0] != '=' ) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
- "%s : line %d: missing '=' in "
- "\"dn[.{exact|base|one|subtree"
- "|children|regex|anonymous}]"
- "=<pattern>\" in "
- "\"limits <pattern> <limits>\" line.\n",
- fname, lineno ));
-#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>\" "
"line.\n%s",
fname, lineno, "" );
-#endif
return( -1 );
}
/* skip '=' (required) */
pattern++;
+
+ /* trim obvious cases */
+ if ( strcmp( pattern, "*" ) == 0 ) {
+ flags = SLAP_LIMITS_ANY;
+ pattern = NULL;
+
+ } else if ( flags == SLAP_LIMITS_REGEX
+ && strcmp( pattern, ".*" ) == 0 ) {
+ flags = SLAP_LIMITS_ANY;
+ pattern = NULL;
+ }
+ }
+
+ } else if (strncasecmp( pattern, "group", STRLENOF( "group" ) ) == 0 ) {
+ pattern += STRLENOF( "group" );
+
+ 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] != '=' ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s : line %d: missing '=' in "
+ "\"group[/objectClass[/attributeType]]"
+ "=<pattern>\" in "
+ "\"limits <pattern> <limits>\" line.\n",
+ fname, lineno, 0 );
+ 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", LDAP_LEVEL_CRIT,
- "%s : line %d: unknown limit type \"%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
return( 1 );
}
/*
* sanity checks ...
+ *
+ * FIXME: add warnings?
*/
- if ( limit.lms_t_hard > 0 && limit.lms_t_hard < limit.lms_t_soft ) {
+ if ( limit.lms_t_hard > 0 &&
+ ( limit.lms_t_hard < limit.lms_t_soft
+ || limit.lms_t_soft == -1 ) ) {
limit.lms_t_hard = limit.lms_t_soft;
}
- if ( limit.lms_s_hard > 0 && limit.lms_s_hard < limit.lms_s_soft ) {
+ if ( limit.lms_s_hard > 0 &&
+ ( limit.lms_s_hard < limit.lms_s_soft
+ || limit.lms_s_soft == -1 ) ) {
limit.lms_s_hard = limit.lms_s_soft;
}
-
- return( add_limits( be, type, pattern, &limit ) );
+
+ /*
+ * defaults ...
+ *
+ * lms_t_hard:
+ * -1 => no limits
+ * 0 => same as soft
+ * > 0 => limit (in seconds)
+ *
+ * lms_s_hard:
+ * -1 => no limits
+ * 0 0> same as soft
+ * > 0 => limit (in entries)
+ *
+ * lms_s_pr_total:
+ * -2 => disable the control
+ * -1 => no limits
+ * 0 => same as soft
+ * > 0 => limit (in entries)
+ *
+ * lms_s_pr:
+ * -1 => no limits
+ * 0 => no limits?
+ * > 0 => limit size (in entries)
+ */
+ if ( limit.lms_s_pr_total > 0 &&
+ limit.lms_s_pr > limit.lms_s_pr_total ) {
+ limit.lms_s_pr = limit.lms_s_pr_total;
+ }
+
+ rc = limits_add( be, flags, pattern, group_oc, group_ad, &limit );
+ if ( rc ) {
+
+ Debug( LDAP_DEBUG_ANY,
+ "%s : line %d: unable to add limit in "
+ "\"limits <pattern> <limits>\" line.\n",
+ fname, lineno, 0 );
+ }
+
+ return( rc );
}
int
-parse_limit(
+limits_parse_one(
const char *arg,
struct slap_limits_set *limit
)
assert( arg );
assert( limit );
- if ( strncasecmp( arg, "time", 4 ) == 0 ) {
- arg += 4;
+ if ( strncasecmp( arg, "time", STRLENOF( "time" ) ) == 0 ) {
+ arg += STRLENOF( "time" );
if ( arg[0] == '.' ) {
arg++;
- if ( strncasecmp( arg, "soft", 4 ) == 0 ) {
- arg += 4;
- if ( arg[0] != '=' ) {
- return( 1 );
+ if ( strncasecmp( arg, "soft=", STRLENOF( "soft=" ) ) == 0 ) {
+ arg += STRLENOF( "soft=" );
+ if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
+ limit->lms_t_soft = -1;
+
+ } else {
+ char *next = NULL;
+ int soft = strtol( arg, &next, 10 );
+
+ if ( next == arg || next[ 0 ] != '\0' ) {
+ return( 1 );
+ }
+
+ if ( soft < -1 ) {
+ return( 1 );
+ }
+
+ if ( soft == -1 ) {
+ /* FIXME: use "unlimited" instead; issue warning? */
+ }
+
+ limit->lms_t_soft = soft;
}
- arg++;
- limit->lms_t_soft = atoi( arg );
- } else if ( strncasecmp( arg, "hard", 4 ) == 0 ) {
- arg += 4;
- if ( arg[0] != '=' ) {
- return( 1 );
- }
- arg++;
+ } else if ( strncasecmp( arg, "hard=", STRLENOF( "hard=" ) ) == 0 ) {
+ arg += STRLENOF( "hard=" );
if ( strcasecmp( arg, "soft" ) == 0 ) {
limit->lms_t_hard = 0;
- } else if ( strcasecmp( arg, "none" ) == 0 ) {
+
+ } else if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
limit->lms_t_hard = -1;
+
} else {
- limit->lms_t_hard = atoi( arg );
+ char *next = NULL;
+ int hard = strtol( arg, &next, 10 );
+
+ if ( next == arg || next[ 0 ] != '\0' ) {
+ return( 1 );
+ }
+
+ if ( hard < -1 ) {
+ return( 1 );
+ }
+
+ if ( hard == -1 ) {
+ /* FIXME: use "unlimited" instead */
+ }
+
+ if ( hard == 0 ) {
+ /* FIXME: use "soft" instead */
+ }
+
+ limit->lms_t_hard = hard;
}
} else {
}
} else if ( arg[0] == '=' ) {
- limit->lms_t_soft = atoi( arg );
+ arg++;
+ if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
+ limit->lms_t_soft = -1;
+
+ } else {
+ char *next = NULL;
+
+ limit->lms_t_soft = strtol( arg, &next, 10 );
+ if ( next == arg || limit->lms_t_soft < -1 ) {
+ return( 1 );
+ }
+ }
limit->lms_t_hard = 0;
} else {
return( 1 );
}
- } else if ( strncasecmp( arg, "size", 4 ) == 0 ) {
- arg += 4;
+ } else if ( strncasecmp( arg, "size", STRLENOF( "size" ) ) == 0 ) {
+ arg += STRLENOF( "size" );
if ( arg[0] == '.' ) {
arg++;
- if ( strncasecmp( arg, "soft", 4 ) == 0 ) {
- arg += 4;
- if ( arg[0] != '=' ) {
- return( 1 );
+ if ( strncasecmp( arg, "soft=", STRLENOF( "soft=" ) ) == 0 ) {
+ arg += STRLENOF( "soft=" );
+ if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
+ limit->lms_s_soft = -1;
+
+ } else {
+ char *next = NULL;
+ int soft = strtol( arg, &next, 10 );
+
+ if ( next == arg || next[ 0 ] != '\0' ) {
+ return( 1 );
+ }
+
+ if ( soft < -1 ) {
+ return( 1 );
+ }
+
+ if ( soft == -1 ) {
+ /* FIXME: use "unlimited" instead */
+ }
+
+ limit->lms_s_soft = soft;
}
- arg++;
- limit->lms_s_soft = atoi( arg );
- } else if ( strncasecmp( arg, "hard", 4 ) == 0 ) {
- arg += 4;
- if ( arg[0] != '=' ) {
- return( 1 );
- }
- arg++;
+ } else if ( strncasecmp( arg, "hard=", STRLENOF( "hard=" ) ) == 0 ) {
+ arg += STRLENOF( "hard=" );
if ( strcasecmp( arg, "soft" ) == 0 ) {
limit->lms_s_hard = 0;
- } else if ( strcasecmp( arg, "none" ) == 0 ) {
+
+ } else if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
limit->lms_s_hard = -1;
+
} else {
- limit->lms_s_hard = atoi( arg );
+ char *next = NULL;
+ int hard = strtol( arg, &next, 10 );
+
+ if ( next == arg || next[ 0 ] != '\0' ) {
+ return( 1 );
+ }
+
+ if ( hard < -1 ) {
+ return( 1 );
+ }
+
+ if ( hard == -1 ) {
+ /* FIXME: use "unlimited" instead */
+ }
+
+ if ( hard == 0 ) {
+ /* FIXME: use "soft" instead */
+ }
+
+ limit->lms_s_hard = hard;
}
- } else if ( strncasecmp( arg, "unchecked", 9 ) == 0 ) {
- arg += 9;
- if ( arg[0] != '=' ) {
- return( 1 );
- }
- arg++;
- if ( strcasecmp( arg, "none" ) == 0 ) {
+ } else if ( strncasecmp( arg, "unchecked=", STRLENOF( "unchecked=" ) ) == 0 ) {
+ arg += STRLENOF( "unchecked=" );
+ if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
limit->lms_s_unchecked = -1;
+
+ } else if ( strcasecmp( arg, "disabled" ) == 0 ) {
+ limit->lms_s_unchecked = 0;
+
} else {
- limit->lms_s_unchecked = atoi( arg );
+ char *next = NULL;
+ int unchecked = strtol( arg, &next, 10 );
+
+ if ( next == arg || next[ 0 ] != '\0' ) {
+ return( 1 );
+ }
+
+ if ( unchecked < -1 ) {
+ return( 1 );
+ }
+
+ if ( unchecked == -1 ) {
+ /* FIXME: use "unlimited" instead */
+ }
+
+ limit->lms_s_unchecked = unchecked;
}
-
+
+ } else if ( strncasecmp( arg, "pr=", STRLENOF( "pr=" ) ) == 0 ) {
+ arg += STRLENOF( "pr=" );
+ if ( strcasecmp( arg, "noEstimate" ) == 0 ) {
+ limit->lms_s_pr_hide = 1;
+
+ } else if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
+ limit->lms_s_pr = -1;
+
+ } else {
+ char *next = NULL;
+ int pr = strtol( arg, &next, 10 );
+
+ if ( next == arg || next[ 0 ] != '\0' ) {
+ return( 1 );
+ }
+
+ if ( pr < -1 ) {
+ return( 1 );
+ }
+
+ if ( pr == -1 ) {
+ /* FIXME: use "unlimited" instead */
+ }
+
+ limit->lms_s_pr = pr;
+ }
+
+ } else if ( strncasecmp( arg, "prtotal=", STRLENOF( "prtotal=" ) ) == 0 ) {
+ arg += STRLENOF( "prtotal=" );
+
+ if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
+ limit->lms_s_pr_total = -1;
+
+ } else if ( strcasecmp( arg, "disabled" ) == 0 ) {
+ limit->lms_s_pr_total = -2;
+
+ } else if ( strcasecmp( arg, "hard" ) == 0 ) {
+ limit->lms_s_pr_total = 0;
+
+ } else {
+ char *next = NULL;
+ int total;
+
+ total = strtol( arg, &next, 10 );
+ if ( next == arg || next[ 0 ] != '\0' ) {
+ return( 1 );
+ }
+
+ if ( total < -1 ) {
+ return( 1 );
+ }
+
+ if ( total == -1 ) {
+ /* FIXME: use "unlimited" instead */
+ }
+
+ if ( total == 0 ) {
+ /* FIXME: use "pr=disable" instead */
+ }
+
+ limit->lms_s_pr_total = total;
+ }
+
} else {
return( 1 );
}
} else if ( arg[0] == '=' ) {
- limit->lms_s_soft = atoi( arg );
+ arg++;
+ if ( strcasecmp( arg, "unlimited" ) == 0 || strcasecmp( arg, "none" ) == 0 ) {
+ limit->lms_s_soft = -1;
+
+ } else {
+ char *next = NULL;
+
+ limit->lms_s_soft = strtol( arg, &next, 10 );
+ if ( next == arg || limit->lms_s_soft < -1 ) {
+ return( 1 );
+ }
+ }
limit->lms_s_hard = 0;
} else {
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);
+
+ /* protocol only allows 0..maxInt;
+ *
+ * internal searches:
+ * - may use SLAP_NO_LIMIT ( = -1 ) to indicate no limits;
+ * - should use slimit = N and tlimit = SLAP_NO_LIMIT to
+ * indicate searches that should return exactly N matches,
+ * and handle errors thru a callback (see for instance
+ * slap_sasl_match() and slap_sasl2dn())
+ */
+ if ( op->ors_tlimit == SLAP_NO_LIMIT && op->ors_slimit == SLAP_NO_LIMIT ) {
+ return 0;
+ }
+
+ /* allow root to set no limit */
+ if ( be_isroot( op ) ) {
+ op->ors_limit = NULL;
+
+ if ( op->ors_tlimit == 0 ) {
+ op->ors_tlimit = SLAP_NO_LIMIT;
+ }
+
+ if ( op->ors_slimit == 0 ) {
+ op->ors_slimit = SLAP_NO_LIMIT;
+ }
+
+ /* 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;
+
+ /* limit required: check if legal */
+ } else {
+ if ( op->ors_limit->lms_t_hard == 0 ) {
+ if ( op->ors_limit->lms_t_soft > 0
+ && ( op->ors_tlimit > op->ors_limit->lms_t_soft ) ) {
+ op->ors_tlimit = op->ors_limit->lms_t_soft;
+ }
+
+ } else if ( op->ors_limit->lms_t_hard > 0 ) {
+#ifdef ABOVE_HARD_LIMIT_IS_ERROR
+ if ( op->ors_tlimit == SLAP_MAX_LIMIT ) {
+ op->ors_tlimit = op->ors_limit->lms_t_hard;
+
+ } else if ( op->ors_tlimit > op->ors_limit->lms_t_hard ) {
+ /* error if exceeding hard limit */
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ return -1;
+ }
+#else /* ! ABOVE_HARD_LIMIT_IS_ERROR */
+ if ( op->ors_tlimit > op->ors_limit->lms_t_hard ) {
+ op->ors_tlimit = op->ors_limit->lms_t_hard;
+ }
+#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
+ }
+ }
+
+ /* else leave as is */
+
+ /* don't even get to backend if candidate check is disabled */
+ if ( op->ors_limit->lms_s_unchecked == 0 ) {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ return -1;
+ }
+
+ /* if paged results is requested */
+ if ( get_pagedresults( op ) > SLAP_CONTROL_IGNORED ) {
+ int slimit = -2;
+ int pr_total;
+ PagedResultsState *ps = op->o_pagedresults_state;
+
+ /* paged results is not allowed */
+ if ( op->ors_limit->lms_s_pr_total == -2 ) {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ rs->sr_text = "pagedResults control not allowed";
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ rs->sr_text = NULL;
+ return -1;
+ }
+
+ if ( op->ors_limit->lms_s_pr > 0 && ps->ps_size > op->ors_limit->lms_s_pr ) {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ rs->sr_text = "illegal pagedResults page size";
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ rs->sr_text = NULL;
+ return -1;
+ }
+
+ if ( op->ors_limit->lms_s_pr_total == 0 ) {
+ if ( op->ors_limit->lms_s_hard == 0 ) {
+ pr_total = op->ors_limit->lms_s_soft;
+ } else {
+ pr_total = op->ors_limit->lms_s_hard;
+ }
+ } else {
+ pr_total = op->ors_limit->lms_s_pr_total;
+ }
+
+ if ( pr_total == -1 ) {
+ if ( op->ors_slimit == 0 || op->ors_slimit == SLAP_MAX_LIMIT ) {
+ slimit = -1;
+
+ } else {
+ slimit = op->ors_slimit - ps->ps_count;
+ }
+
+#ifdef ABOVE_HARD_LIMIT_IS_ERROR
+ } else if ( pr_total > 0 && op->ors_slimit != SLAP_MAX_LIMIT
+ && ( op->ors_slimit == SLAP_NO_LIMIT || op->ors_slimit > pr_total ) )
+ {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ return -1;
+#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
+
+ } else {
+ /* if no limit is required, use soft limit */
+ int total;
+ int slimit2;
+
+ /* first round of pagedResults: set count to any appropriate limit */
+
+ /* if the limit is set, check that it does not violate any server-side limit */
+#ifdef ABOVE_HARD_LIMIT_IS_ERROR
+ if ( op->ors_slimit == SLAP_MAX_LIMIT ) {
+ slimit2 = op->ors_slimit = pr_total;
+#else /* ! ABOVE_HARD_LIMIT_IS_ERROR */
+ if ( op->ors_slimit == SLAP_MAX_LIMIT || op->ors_slimit > pr_total ) {
+ slimit2 = op->ors_slimit = pr_total;
+#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
+
+ } else if ( op->ors_slimit == 0 ) {
+ slimit2 = pr_total;
+
+ } else {
+ slimit2 = op->ors_slimit;
+ }
+
+ total = slimit2 - ps->ps_count;
+
+ if ( total >= 0 ) {
+ if ( op->ors_limit->lms_s_pr > 0 ) {
+ /* use the smallest limit set by total/per page */
+ if ( total < op->ors_limit->lms_s_pr ) {
+ slimit = total;
+
+ } else {
+ /* use the perpage limit if any
+ * NOTE: + 1 because the given value must be legal */
+ slimit = op->ors_limit->lms_s_pr + 1;
+ }
+
+ } else {
+ /* use the total limit if any */
+ slimit = total;
+ }
+
+ } else if ( op->ors_limit->lms_s_pr > 0 ) {
+ /* use the perpage limit if any
+ * NOTE: + 1 because the given value must be legal */
+ slimit = op->ors_limit->lms_s_pr + 1;
+
+ } else {
+ /* use the standard hard/soft limit if any */
+ slimit = op->ors_limit->lms_s_hard;
+ }
+ }
+
+ /* if got any limit, use it */
+ if ( slimit != -2 ) {
+ if ( op->ors_slimit == 0 ) {
+ op->ors_slimit = slimit;
+
+ } else if ( slimit > 0 ) {
+ if ( op->ors_slimit - ps->ps_count > slimit ) {
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ return -1;
+ }
+ op->ors_slimit = slimit;
+ }
+
+ } else {
+ /* use the standard hard/soft limit if any */
+ op->ors_slimit = pr_total;
+ }
+
+ /* no limit requested: use soft, whatever it is */
+ } else if ( op->ors_slimit == 0 ) {
+ op->ors_slimit = op->ors_limit->lms_s_soft;
+
+ /* limit requested: check if legal */
+ } else {
+ /* hard limit as soft (traditional behavior) */
+ if ( op->ors_limit->lms_s_hard == 0 ) {
+ if ( op->ors_limit->lms_s_soft > 0
+ && op->ors_slimit > op->ors_limit->lms_s_soft ) {
+ op->ors_slimit = op->ors_limit->lms_s_soft;
+ }
+
+ /* explicit hard limit: error if violated */
+ } else if ( op->ors_limit->lms_s_hard > 0 ) {
+#ifdef ABOVE_HARD_LIMIT_IS_ERROR
+ if ( op->ors_slimit == SLAP_MAX_LIMIT ) {
+ op->ors_slimit = op->ors_limit->lms_s_hard;
+
+ } else if ( op->ors_slimit > op->ors_limit->lms_s_hard ) {
+ /* if limit exceeds hard, error */
+ rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
+ send_ldap_result( op, rs );
+ rs->sr_err = LDAP_SUCCESS;
+ return -1;
+ }
+#else /* ! ABOVE_HARD_LIMIT_IS_ERROR */
+ if ( op->ors_slimit > op->ors_limit->lms_s_hard ) {
+ op->ors_slimit = op->ors_limit->lms_s_hard;
+ }
+#endif /* ! ABOVE_HARD_LIMIT_IS_ERROR */
+ }
+ }
+
+ /* else leave as is */
+ }
+
+ return 0;
+}
+