]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/aclparse.c
Happy New Year (belated)
[openldap] / servers / slapd / aclparse.c
index 39e7f7831260db8e12c5bf461b49f8319dfb7b1c..29910379d373121ecf287762f5b65f8e2ba78692 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2004 The OpenLDAP Foundation.
+ * Copyright 1998-2008 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 #include "lber_pvt.h"
 #include "lutil.h"
 
-static char *style_strings[] = {
+static const char style_base[] = "base";
+const char *style_strings[] = {
        "regex",
        "expand",
-       "base",
+       "exact",
        "one",
        "subtree",
        "children",
+       "level",
        "attrof",
+       "anonymous",
+       "users",
+       "self",
        "ip",
+       "ipv6",
        "path",
        NULL
 };
 
 static void            split(char *line, int splitchar, char **left, char **right);
 static void            access_append(Access **l, Access *a);
-static void            acl_usage(void) LDAP_GCCATTR((noreturn));
+static void            access_free( Access *a );
+static int             acl_usage(void);
 
 static void            acl_regex_normalized_dn(const char *src, struct berval *pat);
 
 #ifdef LDAP_DEBUG
 static void            print_acl(Backend *be, AccessControl *a);
-static void            print_access(Access *b);
 #endif
 
-#ifdef LDAP_DEVEL
-static int
-check_scope( BackendDB *be, AccessControl *a );
-#endif /* LDAP_DEVEL */
+static int             check_scope( BackendDB *be, AccessControl *a );
 
 #ifdef SLAP_DYNACL
 static int
-slap_dynacl_config( const char *fname, int lineno, Access *b, const char *name, slap_style_t sty, const char *right )
+slap_dynacl_config(
+       const char *fname,
+       int lineno,
+       Access *b,
+       const char *name,
+       const char *opts,
+       slap_style_t sty,
+       const char *right )
 {
        slap_dynacl_t   *da, *tmp;
        int             rc = 0;
 
        for ( da = b->a_dynacl; da; da = da->da_next ) {
                if ( strcasecmp( da->da_name, name ) == 0 ) {
-                       fprintf( stderr,
+                       Debug( LDAP_DEBUG_ANY,
                                "%s: line %d: dynacl \"%s\" already specified.\n",
                                fname, lineno, name );
-                       acl_usage();
+                       return acl_usage();
                }
        }
 
@@ -92,7 +102,7 @@ slap_dynacl_config( const char *fname, int lineno, Access *b, const char *name,
        *tmp = *da;
 
        if ( tmp->da_parse ) {
-               rc = ( *tmp->da_parse )( fname, lineno, sty, right, &tmp->da_private );
+               rc = ( *tmp->da_parse )( fname, lineno, opts, sty, right, &tmp->da_private );
                if ( rc ) {
                        ch_free( tmp );
                        return rc;
@@ -111,8 +121,8 @@ regtest(const char *fname, int lineno, char *pat) {
        int e;
        regex_t re;
 
-       char buf[512];
-       unsigned size;
+       char            buf[ SLAP_TEXT_BUFLEN ];
+       unsigned        size;
 
        char *sp;
        char *dp;
@@ -143,24 +153,30 @@ regtest(const char *fname, int lineno, char *pat) {
 
        *dp = '\0';
        if ( size >= (sizeof(buf) - 1) ) {
-               fprintf( stderr,
+               Debug( LDAP_DEBUG_ANY,
                        "%s: line %d: regular expression \"%s\" too large\n",
                        fname, lineno, pat );
-               acl_usage();
+               (void)acl_usage();
+               exit( EXIT_FAILURE );
        }
 
        if ((e = regcomp(&re, buf, REG_EXTENDED|REG_ICASE))) {
-               char error[512];
+               char error[ SLAP_TEXT_BUFLEN ];
+
                regerror(e, &re, error, sizeof(error));
-               fprintf( stderr,
-                       "%s: line %d: regular expression \"%s\" bad because of %s\n",
-                       fname, lineno, pat, error );
+
+               snprintf( buf, sizeof( buf ),
+                       "regular expression \"%s\" bad because of %s",
+                       pat, error );
+               Debug( LDAP_DEBUG_ANY,
+                       "%s: line %d: %s\n",
+                       fname, lineno, buf );
                acl_usage();
+               exit( EXIT_FAILURE );
        }
        regfree(&re);
 }
 
-#ifdef LDAP_DEVEL
 /*
  * Experimental
  *
@@ -176,23 +192,29 @@ regtest(const char *fname, int lineno, char *pat) {
 static int
 check_scope( BackendDB *be, AccessControl *a )
 {
-       int             patlen;
+       ber_len_t       patlen;
        struct berval   dn;
 
        dn = be->be_nsuffix[0];
 
+       if ( BER_BVISEMPTY( &dn ) ) {
+               return ACL_SCOPE_OK;
+       }
+
        if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
                        a->acl_dn_style != ACL_STYLE_REGEX )
        {
                slap_style_t    style = a->acl_dn_style;
 
                if ( style == ACL_STYLE_REGEX ) {
-                       char    dnbuf[SLAP_LDAPDN_MAXLEN + 2];
-                       char    rebuf[SLAP_LDAPDN_MAXLEN + 1];
-                       regex_t re;
-                       int     rc;
+                       char            dnbuf[SLAP_LDAPDN_MAXLEN + 2];
+                       char            rebuf[SLAP_LDAPDN_MAXLEN + 1];
+                       ber_len_t       rebuflen;
+                       regex_t         re;
+                       int             rc;
                        
-                       /* add trailing '$' */
+                       /* add trailing '$' to database suffix to form
+                        * a simple trial regex pattern "<suffix>$" */
                        AC_MEMCPY( dnbuf, be->be_nsuffix[0].bv_val,
                                be->be_nsuffix[0].bv_len );
                        dnbuf[be->be_nsuffix[0].bv_len] = '$';
@@ -202,17 +224,26 @@ check_scope( BackendDB *be, AccessControl *a )
                                return ACL_SCOPE_WARN;
                        }
 
-                       /* remove trailing '$' */
-                       AC_MEMCPY( rebuf, a->acl_dn_pat.bv_val,
-                               a->acl_dn_pat.bv_len + 1 );
-                       if ( a->acl_dn_pat.bv_val[a->acl_dn_pat.bv_len - 1] == '$' ) {
-                               rebuf[a->acl_dn_pat.bv_len - 1] = '\0';
+                       /* remove trailing ')$', if any, from original
+                        * regex pattern */
+                       rebuflen = a->acl_dn_pat.bv_len;
+                       AC_MEMCPY( rebuf, a->acl_dn_pat.bv_val, rebuflen + 1 );
+                       if ( rebuf[rebuflen - 1] == '$' ) {
+                               rebuf[--rebuflen] = '\0';
+                       }
+                       while ( rebuflen > be->be_nsuffix[0].bv_len && rebuf[rebuflen - 1] == ')' ) {
+                               rebuf[--rebuflen] = '\0';
+                       }
+                       if ( rebuflen == be->be_nsuffix[0].bv_len ) {
+                               rc = ACL_SCOPE_WARN;
+                               goto regex_done;
                        }
 
                        /* not a clear indication of scoping error, though */
                        rc = regexec( &re, rebuf, 0, NULL, 0 )
                                ? ACL_SCOPE_WARN : ACL_SCOPE_OK;
 
+regex_done:;
                        regfree( &re );
                        return rc;
                }
@@ -226,11 +257,12 @@ check_scope( BackendDB *be, AccessControl *a )
                        /* base is blatantly wrong */
                        if ( style == ACL_STYLE_BASE ) return ACL_SCOPE_ERR;
 
-                       /* one can be wrong if there is more
-                        * than one level between the suffix
+                       /* a style of one can be wrong if there is
+                        * more than one level between the suffix
                         * and the pattern */
                        if ( style == ACL_STYLE_ONE ) {
-                               int     rdnlen = -1, sep = 0;
+                               ber_len_t       rdnlen = 0;
+                               int             sep = 0;
 
                                if ( patlen > 0 ) {
                                        if ( !DN_SEPARATOR( dn.bv_val[dn.bv_len - patlen - 1] )) {
@@ -284,34 +316,32 @@ check_scope( BackendDB *be, AccessControl *a )
 
        return ACL_SCOPE_UNKNOWN;
 }
-#endif /* LDAP_DEVEL */
 
-void
+int
 parse_acl(
-    Backend    *be,
-    const char *fname,
-    int                lineno,
-    int                argc,
-    char       **argv
-)
+       Backend *be,
+       const char      *fname,
+       int             lineno,
+       int             argc,
+       char            **argv,
+       int             pos )
 {
        int             i;
-       char            *left, *right, *style, *next;
+       char            *left, *right, *style;
        struct berval   bv;
-       AccessControl   *a;
-       Access  *b;
+       AccessControl   *a = NULL;
+       Access  *b = NULL;
        int rc;
        const char *text;
 
-       a = NULL;
        for ( i = 1; i < argc; i++ ) {
                /* to clause - select which entries are protected */
                if ( strcasecmp( argv[i], "to" ) == 0 ) {
                        if ( a != NULL ) {
-                               fprintf( stderr, "%s: line %d: "
+                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                        "only one to clause allowed in access line\n",
-                                   fname, lineno );
-                               acl_usage();
+                                   fname, lineno, 0 );
+                               goto fail;
                        }
                        a = (AccessControl *) ch_calloc( 1, sizeof(AccessControl) );
                        for ( ++i; i < argc; i++ ) {
@@ -324,11 +354,11 @@ parse_acl(
                                        if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
                                                a->acl_dn_style != ACL_STYLE_REGEX )
                                        {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: dn pattern"
                                                        " already specified in to clause.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        ber_str2bv( "*", STRLENOF( "*" ), 1, &a->acl_dn_pat );
@@ -339,21 +369,21 @@ parse_acl(
                                split( left, '.', &left, &style );
 
                                if ( right == NULL ) {
-                                       fprintf( stderr, "%s: line %d: "
+                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                "missing \"=\" in \"%s\" in to clause\n",
                                            fname, lineno, left );
-                                       acl_usage();
+                                       goto fail;
                                }
 
                                if ( strcasecmp( left, "dn" ) == 0 ) {
                                        if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
                                                a->acl_dn_style != ACL_STYLE_REGEX )
                                        {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: dn pattern"
                                                        " already specified in to clause.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        if ( style == NULL || *style == '\0' ||
@@ -408,10 +438,10 @@ parse_acl(
                                                }
 
                                        } else {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "unknown dn style \"%s\" in to clause\n",
                                                    fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        continue;
@@ -419,98 +449,216 @@ parse_acl(
 
                                if ( strcasecmp( left, "filter" ) == 0 ) {
                                        if ( (a->acl_filter = str2filter( right )) == NULL ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                "%s: line %d: bad filter \"%s\" in to clause\n",
                                                    fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
+                                       }
+
+                               } else if ( strcasecmp( left, "attr" ) == 0             /* TOLERATED */
+                                               || strcasecmp( left, "attrs" ) == 0 )   /* DOCUMENTED */
+                               {
+                                       if ( strcasecmp( left, "attr" ) == 0 ) {
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: \"attr\" "
+                                                       "is deprecated (and undocumented); "
+                                                       "use \"attrs\" instead.\n",
+                                                       fname, lineno, 0 );
                                        }
 
-                               } else if ( strcasecmp( left, "attr" ) == 0
-                                               || strcasecmp( left, "attrs" ) == 0 ) {
                                        a->acl_attrs = str2anlist( a->acl_attrs,
                                                right, "," );
                                        if ( a->acl_attrs == NULL ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                "%s: line %d: unknown attr \"%s\" in to clause\n",
                                                    fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                } else if ( strncasecmp( left, "val", 3 ) == 0 ) {
+                                       struct berval   bv;
+                                       char            *mr;
+                                       
                                        if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                "%s: line %d: attr val already specified in to clause.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
                                        if ( a->acl_attrs == NULL || !BER_BVISEMPTY( &a->acl_attrs[1].an_name ) )
                                        {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                "%s: line %d: attr val requires a single attribute.\n",
-                                                       fname, lineno );
-                                               acl_usage();
-                                       }
-                                       ber_str2bv( right, 0, 1, &a->acl_attrval );
-                                       if ( style && strcasecmp( style, "regex" ) == 0 ) {
-                                               int e = regcomp( &a->acl_attrval_re, a->acl_attrval.bv_val,
-                                                       REG_EXTENDED | REG_ICASE | REG_NOSUB );
-                                               if ( e ) {
-                                                       char buf[512];
-                                                       regerror( e, &a->acl_attrval_re, buf, sizeof(buf) );
-                                                       fprintf( stderr, "%s: line %d: "
-                                                               "regular expression \"%s\" bad because of %s\n",
-                                                               fname, lineno, right, buf );
-                                                       acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
+                                       }
+
+                                       ber_str2bv( right, 0, 0, &bv );
+                                       a->acl_attrval_style = ACL_STYLE_BASE;
+
+                                       mr = strchr( left, '/' );
+                                       if ( mr != NULL ) {
+                                               mr[ 0 ] = '\0';
+                                               mr++;
+
+                                               a->acl_attrval_mr = mr_find( mr );
+                                               if ( a->acl_attrval_mr == NULL ) {
+                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                               "invalid matching rule \"%s\".\n",
+                                                               fname, lineno, mr );
+                                                       goto fail;
                                                }
-                                               a->acl_attrval_style = ACL_STYLE_REGEX;
-                                       } else {
-                                               /* FIXME: if the attribute has DN syntax, we might
-                                                * allow one, subtree and children styles as well */
-                                               if ( !strcasecmp( style, "exact" ) ) {
-                                                       a->acl_attrval_style = ACL_STYLE_BASE;
 
-                                               } else if ( a->acl_attrs[0].an_desc->ad_type->
-                                                       sat_syntax == slap_schema.si_syn_distinguishedName )
+                                               if( !mr_usable_with_at( a->acl_attrval_mr, a->acl_attrs[ 0 ].an_desc->ad_type ) )
                                                {
-                                                       if ( !strcasecmp( style, "baseObject" ) ||
-                                                               !strcasecmp( style, "base" ) )
-                                                       {
+                                                       char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                                       snprintf( buf, sizeof( buf ),
+                                                               "matching rule \"%s\" use "
+                                                               "with attr \"%s\" not appropriate.",
+                                                               mr, a->acl_attrs[ 0 ].an_name.bv_val );
+                                                               
+
+                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
+                                                               fname, lineno, buf );
+                                                       goto fail;
+                                               }
+                                       }
+                                       
+                                       if ( style != NULL ) {
+                                               if ( strcasecmp( style, "regex" ) == 0 ) {
+                                                       int e = regcomp( &a->acl_attrval_re, bv.bv_val,
+                                                               REG_EXTENDED | REG_ICASE | REG_NOSUB );
+                                                       if ( e ) {
+                                                               char    err[SLAP_TEXT_BUFLEN],
+                                                                       buf[ SLAP_TEXT_BUFLEN ];
+
+                                                               regerror( e, &a->acl_attrval_re, err, sizeof( err ) );
+
+                                                               snprintf( buf, sizeof( buf ),
+                                                                       "regular expression \"%s\" bad because of %s",
+                                                                       right, err );
+
+                                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
+                                                                       fname, lineno, buf );
+                                                               goto fail;
+                                                       }
+                                                       a->acl_attrval_style = ACL_STYLE_REGEX;
+
+                                               } else {
+                                                       /* FIXME: if the attribute has DN syntax, we might
+                                                        * allow one, subtree and children styles as well */
+                                                       if ( !strcasecmp( style, "base" ) ||
+                                                               !strcasecmp( style, "exact" ) ) {
                                                                a->acl_attrval_style = ACL_STYLE_BASE;
-                                                       } else if ( !strcasecmp( style, "onelevel" ) ||
-                                                               !strcasecmp( style, "one" ) )
-                                                       {
-                                                               a->acl_attrval_style = ACL_STYLE_ONE;
-                                                       } else if ( !strcasecmp( style, "subtree" ) ||
-                                                               !strcasecmp( style, "sub" ) )
+
+                                                       } else if ( a->acl_attrs[0].an_desc->ad_type->
+                                                               sat_syntax == slap_schema.si_syn_distinguishedName )
                                                        {
-                                                               a->acl_attrval_style = ACL_STYLE_SUBTREE;
-                                                       } else if ( !strcasecmp( style, "children" ) ) {
-                                                               a->acl_attrval_style = ACL_STYLE_CHILDREN;
+                                                               if ( !strcasecmp( style, "baseObject" ) ||
+                                                                       !strcasecmp( style, "base" ) )
+                                                               {
+                                                                       a->acl_attrval_style = ACL_STYLE_BASE;
+                                                               } else if ( !strcasecmp( style, "onelevel" ) ||
+                                                                       !strcasecmp( style, "one" ) )
+                                                               {
+                                                                       a->acl_attrval_style = ACL_STYLE_ONE;
+                                                               } else if ( !strcasecmp( style, "subtree" ) ||
+                                                                       !strcasecmp( style, "sub" ) )
+                                                               {
+                                                                       a->acl_attrval_style = ACL_STYLE_SUBTREE;
+                                                               } else if ( !strcasecmp( style, "children" ) ) {
+                                                                       a->acl_attrval_style = ACL_STYLE_CHILDREN;
+                                                               } else {
+                                                                       char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                                                       snprintf( buf, sizeof( buf ),
+                                                                               "unknown val.<style> \"%s\" for attributeType \"%s\" "
+                                                                                       "with DN syntax.",
+                                                                               style,
+                                                                               a->acl_attrs[0].an_desc->ad_cname.bv_val );
+
+                                                                       Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL, 
+                                                                               "%s: line %d: %s\n",
+                                                                               fname, lineno, buf );
+                                                                       goto fail;
+                                                               }
+
+                                                               rc = dnNormalize( 0, NULL, NULL, &bv, &a->acl_attrval, NULL );
+                                                               if ( rc != LDAP_SUCCESS ) {
+                                                                       char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                                                       snprintf( buf, sizeof( buf ),
+                                                                               "unable to normalize DN \"%s\" "
+                                                                               "for attributeType \"%s\" (%d).",
+                                                                               bv.bv_val,
+                                                                               a->acl_attrs[0].an_desc->ad_cname.bv_val,
+                                                                               rc );
+                                                                       Debug( LDAP_DEBUG_ANY, 
+                                                                               "%s: line %d: %s\n",
+                                                                               fname, lineno, buf );
+                                                                       goto fail;
+                                                               }
+
                                                        } else {
-                                                               fprintf( stderr, 
-                                                                       "%s: line %d: unknown val.<style> \"%s\" "
-                                                                       "for attributeType \"%s\" with DN syntax; "
-                                                                       "using \"base\"\n",
-                                                                       fname, lineno, style,
-                                                                       a->acl_attrs[0].an_desc->ad_cname.bv_val );
-                                                               a->acl_attrval_style = ACL_STYLE_BASE;
+                                                               char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                                               snprintf( buf, sizeof( buf ),
+                                                                       "unknown val.<style> \"%s\" for attributeType \"%s\".",
+                                                                       style, a->acl_attrs[0].an_desc->ad_cname.bv_val );
+                                                               Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL, 
+                                                                       "%s: line %d: %s\n",
+                                                                       fname, lineno, buf );
+                                                               goto fail;
                                                        }
-                                                       
-                                               } else {
-                                                       fprintf( stderr, 
-                                                               "%s: line %d: unknown val.<style> \"%s\" "
-                                                               "for attributeType \"%s\"; using \"exact\"\n",
-                                                               fname, lineno, style,
-                                                               a->acl_attrs[0].an_desc->ad_cname.bv_val );
-                                                       a->acl_attrval_style = ACL_STYLE_BASE;
                                                }
                                        }
-                                       
+
+                                       /* Check for appropriate matching rule */
+                                       if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
+                                               ber_dupbv( &a->acl_attrval, &bv );
+
+                                       } else if ( BER_BVISNULL( &a->acl_attrval ) ) {
+                                               int             rc;
+                                               const char      *text;
+
+                                               if ( a->acl_attrval_mr == NULL ) {
+                                                       a->acl_attrval_mr = a->acl_attrs[ 0 ].an_desc->ad_type->sat_equality;
+                                               }
+
+                                               if ( a->acl_attrval_mr == NULL ) {
+                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                               "attr \"%s\" does not have an EQUALITY matching rule.\n",
+                                                               fname, lineno, a->acl_attrs[ 0 ].an_name.bv_val );
+                                                       goto fail;
+                                               }
+
+                                               rc = asserted_value_validate_normalize(
+                                                       a->acl_attrs[ 0 ].an_desc,
+                                                       a->acl_attrval_mr,
+                                                       SLAP_MR_EQUALITY|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
+                                                       &bv,
+                                                       &a->acl_attrval,
+                                                       &text,
+                                                       NULL );
+                                               if ( rc != LDAP_SUCCESS ) {
+                                                       char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                                       snprintf( buf, sizeof( buf ), "%s: line %d: "
+                                                               " attr \"%s\" normalization failed (%d: %s)",
+                                                               fname, lineno,
+                                                               a->acl_attrs[ 0 ].an_name.bv_val, rc, text );
+                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: %s.\n",
+                                                               fname, lineno, buf );
+                                                       goto fail;
+                                               }
+                                       }
+
                                } else {
-                                       fprintf( stderr,
+                                       Debug( LDAP_DEBUG_ANY,
                                                "%s: line %d: expecting <what> got \"%s\"\n",
                                            fname, lineno, left );
-                                       acl_usage();
+                                       goto fail;
                                }
                        }
 
@@ -519,6 +667,7 @@ parse_acl(
                        {
                                free( a->acl_dn_pat.bv_val );
                                BER_BVZERO( &a->acl_dn_pat );
+                               a->acl_dn_style = ACL_STYLE_REGEX;
                        }
                        
                        if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ||
@@ -528,10 +677,10 @@ parse_acl(
                                        struct berval bv;
                                        rc = dnNormalize( 0, NULL, NULL, &a->acl_dn_pat, &bv, NULL);
                                        if ( rc != LDAP_SUCCESS ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: bad DN \"%s\" in to DN clause\n",
                                                        fname, lineno, a->acl_dn_pat.bv_val );
-                                               acl_usage();
+                                               goto fail;
                                        }
                                        free( a->acl_dn_pat.bv_val );
                                        a->acl_dn_pat = bv;
@@ -540,12 +689,16 @@ parse_acl(
                                        int e = regcomp( &a->acl_dn_re, a->acl_dn_pat.bv_val,
                                                REG_EXTENDED | REG_ICASE );
                                        if ( e ) {
-                                               char buf[512];
-                                               regerror( e, &a->acl_dn_re, buf, sizeof(buf) );
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "regular expression \"%s\" bad because of %s\n",
-                                                       fname, lineno, right, buf );
-                                               acl_usage();
+                                               char    err[ SLAP_TEXT_BUFLEN ],
+                                                       buf[ SLAP_TEXT_BUFLEN ];
+
+                                               regerror( e, &a->acl_dn_re, err, sizeof( err ) );
+                                               snprintf( buf, sizeof( buf ),
+                                                       "regular expression \"%s\" bad because of %s",
+                                                       right, err );
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
+                                                       fname, lineno, buf );
+                                               goto fail;
                                        }
                                }
                        }
@@ -553,37 +706,62 @@ parse_acl(
                /* by clause - select who has what access to entries */
                } else if ( strcasecmp( argv[i], "by" ) == 0 ) {
                        if ( a == NULL ) {
-                               fprintf( stderr, "%s: line %d: "
+                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                        "to clause required before by clause in access line\n",
-                                   fname, lineno );
-                               acl_usage();
+                                       fname, lineno, 0 );
+                               goto fail;
                        }
 
                        /*
                         * by clause consists of <who> and <access>
                         */
 
+                       if ( ++i == argc ) {
+                               Debug( LDAP_DEBUG_ANY,
+                                       "%s: line %d: premature EOL: expecting <who>\n",
+                                       fname, lineno, 0 );
+                               goto fail;
+                       }
+
                        b = (Access *) ch_calloc( 1, sizeof(Access) );
 
                        ACL_INVALIDATE( b->a_access_mask );
 
-                       if ( ++i == argc ) {
-                               fprintf( stderr,
-                           "%s: line %d: premature eol: expecting <who>\n",
-                                   fname, lineno );
-                               acl_usage();
-                       }
-
                        /* get <who> */
                        for ( ; i < argc; i++ ) {
-                               slap_style_t sty = ACL_STYLE_REGEX;
-                               char *style_modifier = NULL;
-                               int expand = 0;
+                               slap_style_t    sty = ACL_STYLE_REGEX;
+                               char            *style_modifier = NULL;
+                               char            *style_level = NULL;
+                               int             level = 0;
+                               int             expand = 0;
+                               slap_dn_access  *bdn = &b->a_dn;
+                               int             is_realdn = 0;
 
                                split( argv[i], '=', &left, &right );
                                split( left, '.', &left, &style );
                                if ( style ) {
-                                       split( style, ',', &style, &style_modifier);
+                                       split( style, ',', &style, &style_modifier );
+
+                                       if ( strncasecmp( style, "level", STRLENOF( "level" ) ) == 0 ) {
+                                               split( style, '{', &style, &style_level );
+                                               if ( style_level != NULL ) {
+                                                       char *p = strchr( style_level, '}' );
+                                                       if ( p == NULL ) {
+                                                               Debug( LDAP_DEBUG_ANY,
+                                                                       "%s: line %d: premature eol: "
+                                                                       "expecting closing '}' in \"level{n}\"\n",
+                                                                       fname, lineno, 0 );
+                                                               goto fail;
+                                                       } else if ( p == style_level ) {
+                                                               Debug( LDAP_DEBUG_ANY,
+                                                                       "%s: line %d: empty level "
+                                                                       "in \"level{n}\"\n",
+                                                                       fname, lineno, 0 );
+                                                               goto fail;
+                                                       }
+                                                       p[0] = '\0';
+                                               }
+                                       }
                                }
 
                                if ( style == NULL || *style == '\0' ||
@@ -606,6 +784,18 @@ parse_acl(
                                } else if ( strcasecmp( style, "children" ) == 0 ) {
                                        sty = ACL_STYLE_CHILDREN;
 
+                               } else if ( strcasecmp( style, "level" ) == 0 )
+                               {
+                                       if ( lutil_atoi( &level, style_level ) != 0 ) {
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: unable to parse level "
+                                                       "in \"level{n}\"\n",
+                                                       fname, lineno, 0 );
+                                               goto fail;
+                                       }
+
+                                       sty = ACL_STYLE_LEVEL;
+
                                } else if ( strcasecmp( style, "regex" ) == 0 ) {
                                        sty = ACL_STYLE_REGEX;
 
@@ -615,19 +805,29 @@ parse_acl(
                                } else if ( strcasecmp( style, "ip" ) == 0 ) {
                                        sty = ACL_STYLE_IP;
 
+                               } else if ( strcasecmp( style, "ipv6" ) == 0 ) {
+#ifndef LDAP_PF_INET6
+                                       Debug( LDAP_DEBUG_ANY,
+                                               "%s: line %d: IPv6 not supported\n",
+                                               fname, lineno, 0 );
+#endif /* ! LDAP_PF_INET6 */
+                                       sty = ACL_STYLE_IPV6;
+
                                } else if ( strcasecmp( style, "path" ) == 0 ) {
                                        sty = ACL_STYLE_PATH;
 #ifndef LDAP_PF_LOCAL
-                                       fprintf( stderr, "%s: line %d: "
-                                               "path style modifier is useless without local\n",
-                                               fname, lineno );
+                                       Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
+                                               "%s: line %d: "
+                                               "\"path\" style modifier is useless without local.\n",
+                                               fname, lineno, 0 );
+                                       goto fail;
 #endif /* LDAP_PF_LOCAL */
 
                                } else {
-                                       fprintf( stderr,
+                                       Debug( LDAP_DEBUG_ANY,
                                                "%s: line %d: unknown style \"%s\" in by clause\n",
-                                           fname, lineno, style );
-                                       acl_usage();
+                                               fname, lineno, style );
+                                       goto fail;
                                }
 
                                if ( style_modifier &&
@@ -635,21 +835,13 @@ parse_acl(
                                {
                                        switch ( sty ) {
                                        case ACL_STYLE_REGEX:
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "\"regex\" style implies "
-                                                       "\"expand\" modifier (ignored)\n",
-                                                       fname, lineno );
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "\"regex\" style implies \"expand\" modifier.\n",
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                                break;
 
                                        case ACL_STYLE_EXPAND:
-#if 0
-                                               /* FIXME: now it's legal... */
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "\"expand\" style used "
-                                                       "in conjunction with "
-                                                       "\"expand\" modifier (ignored)\n",
-                                                       fname, lineno );
-#endif
                                                break;
 
                                        default:
@@ -663,45 +855,54 @@ parse_acl(
                                if ( ( sty == ACL_STYLE_EXPAND || expand )
                                                && a->acl_dn_style != ACL_STYLE_REGEX )
                                {
-                                       fprintf( stderr, "%s: line %d: "
-                                               "\"expand\" style or modifier used "
-                                               "in conjunction with "
-                                               "a non-regex <what> clause\n",
-                                               fname, lineno );
+                                       Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL, "%s: line %d: \"expand\" style "
+                                               "or modifier used in conjunction with a non-regex <what> clause.\n",
+                                               fname, lineno, 0 );
+                                               goto fail;
                                }
 
-                               if ( strcasecmp( argv[i], "*" ) == 0 ) {
+                               if ( strncasecmp( left, "real", STRLENOF( "real" ) ) == 0 ) {
+                                       is_realdn = 1;
+                                       bdn = &b->a_realdn;
+                                       left += STRLENOF( "real" );
+                               }
+
+                               if ( strcasecmp( left, "*" ) == 0 ) {
+                                       if ( is_realdn ) {
+                                               goto fail;
+                                       }
+
                                        ber_str2bv( "*", STRLENOF( "*" ), 1, &bv );
                                        sty = ACL_STYLE_REGEX;
 
-                               } else if ( strcasecmp( argv[i], "anonymous" ) == 0 ) {
+                               } else if ( strcasecmp( left, "anonymous" ) == 0 ) {
                                        ber_str2bv("anonymous", STRLENOF( "anonymous" ), 1, &bv);
                                        sty = ACL_STYLE_ANONYMOUS;
 
-                               } else if ( strcasecmp( argv[i], "users" ) == 0 ) {
+                               } else if ( strcasecmp( left, "users" ) == 0 ) {
                                        ber_str2bv("users", STRLENOF( "users" ), 1, &bv);
                                        sty = ACL_STYLE_USERS;
 
-                               } else if ( strcasecmp( argv[i], "self" ) == 0 ) {
+                               } else if ( strcasecmp( left, "self" ) == 0 ) {
                                        ber_str2bv("self", STRLENOF( "self" ), 1, &bv);
                                        sty = ACL_STYLE_SELF;
 
                                } else if ( strcasecmp( left, "dn" ) == 0 ) {
                                        if ( sty == ACL_STYLE_REGEX ) {
-                                               b->a_dn_style = ACL_STYLE_REGEX;
+                                               bdn->a_style = ACL_STYLE_REGEX;
                                                if ( right == NULL ) {
                                                        /* no '=' */
                                                        ber_str2bv("users",
                                                                STRLENOF( "users" ),
                                                                1, &bv);
-                                                       b->a_dn_style = ACL_STYLE_USERS;
+                                                       bdn->a_style = ACL_STYLE_USERS;
 
                                                } else if (*right == '\0' ) {
                                                        /* dn="" */
                                                        ber_str2bv("anonymous",
                                                                STRLENOF( "anonymous" ),
                                                                1, &bv);
-                                                       b->a_dn_style = ACL_STYLE_ANONYMOUS;
+                                                       bdn->a_style = ACL_STYLE_ANONYMOUS;
 
                                                } else if ( strcmp( right, "*" ) == 0 ) {
                                                        /* dn=* */
@@ -709,7 +910,7 @@ parse_acl(
                                                        ber_str2bv("users",
                                                                STRLENOF( "users" ),
                                                                1, &bv);
-                                                       b->a_dn_style = ACL_STYLE_USERS;
+                                                       bdn->a_style = ACL_STYLE_USERS;
 
                                                } else if ( strcmp( right, ".+" ) == 0
                                                        || strcmp( right, "^.+" ) == 0
@@ -721,7 +922,7 @@ parse_acl(
                                                        ber_str2bv("users",
                                                                STRLENOF( "users" ),
                                                                1, &bv);
-                                                       b->a_dn_style = ACL_STYLE_USERS;
+                                                       bdn->a_style = ACL_STYLE_USERS;
 
                                                } else if ( strcmp( right, ".*" ) == 0
                                                        || strcmp( right, "^.*" ) == 0
@@ -742,11 +943,11 @@ parse_acl(
                                                }
 
                                        } else if ( right == NULL || *right == '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "missing \"=\" in (or value after) \"%s\" "
                                                        "in by clause\n",
-                                                   fname, lineno, left );
-                                               acl_usage();
+                                                       fname, lineno, left );
+                                               goto fail;
 
                                        } else {
                                                ber_str2bv( right, 0, 1, &bv );
@@ -757,11 +958,11 @@ parse_acl(
                                }
 
                                if ( !BER_BVISNULL( &bv ) ) {
-                                       if ( !BER_BVISEMPTY( &b->a_dn_pat ) ) {
-                                               fprintf( stderr,
-                                                   "%s: line %d: dn pattern already specified.\n",
-                                                   fname, lineno );
-                                               acl_usage();
+                                       if ( !BER_BVISEMPTY( &bdn->a_pat ) ) {
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: dn pattern already specified.\n",
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        if ( sty != ACL_STYLE_REGEX &&
@@ -771,68 +972,136 @@ parse_acl(
                                                        expand == 0 )
                                        {
                                                rc = dnNormalize(0, NULL, NULL,
-                                                       &bv, &b->a_dn_pat, NULL);
+                                                       &bv, &bdn->a_pat, NULL);
                                                if ( rc != LDAP_SUCCESS ) {
-                                                       fprintf( stderr,
+                                                       Debug( LDAP_DEBUG_ANY,
                                                                "%s: line %d: bad DN \"%s\" in by DN clause\n",
                                                                fname, lineno, bv.bv_val );
-                                                       acl_usage();
+                                                       goto fail;
                                                }
                                                free( bv.bv_val );
+                                               if ( sty == ACL_STYLE_BASE
+                                                       && be != NULL
+                                                       && !BER_BVISNULL( &be->be_rootndn )
+                                                       && dn_match( &bdn->a_pat, &be->be_rootndn ) )
+                                               {
+                                                       Debug( LDAP_DEBUG_ANY,
+                                                               "%s: line %d: rootdn is always granted "
+                                                               "unlimited privileges.\n",
+                                                               fname, lineno, 0 );
+                                               }
+
+                                       } else {
+                                               bdn->a_pat = bv;
+                                       }
+                                       bdn->a_style = sty;
+                                       if ( expand ) {
+                                               char    *exp;
+                                               int     gotit = 0;
+
+                                               for ( exp = strchr( bdn->a_pat.bv_val, '$' );
+                                                       exp && (ber_len_t)(exp - bdn->a_pat.bv_val)
+                                                               < bdn->a_pat.bv_len;
+                                                       exp = strchr( exp, '$' ) )
+                                               {
+                                                       if ( isdigit( (unsigned char) exp[ 1 ] ) ) {
+                                                               gotit = 1;
+                                                               break;
+                                                       }
+                                               }
+
+                                               if ( gotit == 1 ) {
+                                                       bdn->a_expand = expand;
+
+                                               } else {
+                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                               "\"expand\" used with no expansions in \"pattern\".\n",
+                                                               fname, lineno, 0 );
+                                                       goto fail;
+                                               } 
+                                       }
+                                       if ( sty == ACL_STYLE_SELF ) {
+                                               bdn->a_self_level = level;
 
                                        } else {
-                                               b->a_dn_pat = bv;
+                                               if ( level < 0 ) {
+                                                       Debug( LDAP_DEBUG_ANY,
+                                                               "%s: line %d: bad negative level \"%d\" "
+                                                               "in by DN clause\n",
+                                                               fname, lineno, level );
+                                                       goto fail;
+                                               } else if ( level == 1 ) {
+                                                       Debug( LDAP_DEBUG_ANY,
+                                                               "%s: line %d: \"onelevel\" should be used "
+                                                               "instead of \"level{1}\" in by DN clause\n",
+                                                               fname, lineno, 0 );
+                                               } else if ( level == 0 && sty == ACL_STYLE_LEVEL ) {
+                                                       Debug( LDAP_DEBUG_ANY,
+                                                               "%s: line %d: \"base\" should be used "
+                                                               "instead of \"level{0}\" in by DN clause\n",
+                                                               fname, lineno, 0 );
+                                               }
+
+                                               bdn->a_level = level;
                                        }
-                                       b->a_dn_style = sty;
-                                       b->a_dn_expand = expand;
                                        continue;
                                }
 
                                if ( strcasecmp( left, "dnattr" ) == 0 ) {
                                        if ( right == NULL || right[0] == '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "missing \"=\" in (or value after) \"%s\" "
                                                        "in by clause\n",
                                                        fname, lineno, left );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
-                                       if( b->a_dn_at != NULL ) {
-                                               fprintf( stderr,
+                                       if( bdn->a_at != NULL ) {
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: dnattr already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
-                                       rc = slap_str2ad( right, &b->a_dn_at, &text );
+                                       rc = slap_str2ad( right, &bdn->a_at, &text );
 
                                        if( rc != LDAP_SUCCESS ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: dnattr \"%s\": %s\n",
-                                                       fname, lineno, right, text );
-                                               acl_usage();
+                                               char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                               snprintf( buf, sizeof( buf ),
+                                                       "dnattr \"%s\": %s",
+                                                       right, text );
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: %s\n",
+                                                       fname, lineno, buf );
+                                               goto fail;
                                        }
 
 
-                                       if( !is_at_syntax( b->a_dn_at->ad_type,
+                                       if( !is_at_syntax( bdn->a_at->ad_type,
                                                SLAPD_DN_SYNTAX ) &&
-                                               !is_at_syntax( b->a_dn_at->ad_type,
+                                               !is_at_syntax( bdn->a_at->ad_type,
                                                SLAPD_NAMEUID_SYNTAX ))
                                        {
-                                               fprintf( stderr,
-                                                       "%s: line %d: dnattr \"%s\": "
+                                               char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                               snprintf( buf, sizeof( buf ),
+                                                       "dnattr \"%s\": "
                                                        "inappropriate syntax: %s\n",
-                                                       fname, lineno, right,
-                                                       b->a_dn_at->ad_type->sat_syntax_oid );
-                                               acl_usage();
+                                                       right,
+                                                       bdn->a_at->ad_type->sat_syntax_oid );
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: %s\n",
+                                                       fname, lineno, buf );
+                                               goto fail;
                                        }
 
-                                       if( b->a_dn_at->ad_type->sat_equality == NULL ) {
-                                               fprintf( stderr,
+                                       if( bdn->a_at->ad_type->sat_equality == NULL ) {
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: dnattr \"%s\": "
                                                        "inappropriate matching (no EQUALITY)\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        continue;
@@ -841,14 +1110,16 @@ parse_acl(
                                if ( strncasecmp( left, "group", STRLENOF( "group" ) ) == 0 ) {
                                        char *name = NULL;
                                        char *value = NULL;
+                                       char *attr_name = SLAPD_GROUP_ATTR;
 
                                        switch ( sty ) {
                                        case ACL_STYLE_REGEX:
                                                /* legacy, tolerated */
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
+                                                       "%s: line %d: "
                                                        "deprecated group style \"regex\"; "
-                                                       "use \"expand\" instead\n",
-                                                       fname, lineno, style );
+                                                       "use \"expand\" instead.\n",
+                                                       fname, lineno, 0 );
                                                sty = ACL_STYLE_EXPAND;
                                                break;
 
@@ -860,25 +1131,27 @@ parse_acl(
 
                                        default:
                                                /* unknown */
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                        fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || right[0] == '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: "
                                                        "missing \"=\" in (or value after) \"%s\" "
-                                                       "in by clause\n",
+                                                       "in by clause.\n",
                                                        fname, lineno, left );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: group pattern already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        /* format of string is
@@ -903,10 +1176,10 @@ parse_acl(
                                                rc = dnNormalize( 0, NULL, NULL, &bv,
                                                        &b->a_group_pat, NULL );
                                                if ( rc != LDAP_SUCCESS ) {
-                                                       fprintf( stderr,
-                                                               "%s: line %d: bad DN \"%s\"\n",
+                                                       Debug( LDAP_DEBUG_ANY,
+                                                               "%s: line %d: bad DN \"%s\".\n",
                                                                fname, lineno, right );
-                                                       acl_usage();
+                                                       goto fail;
                                                }
                                        }
 
@@ -915,98 +1188,108 @@ parse_acl(
                                                *--value = '/';
 
                                                if ( b->a_group_oc == NULL ) {
-                                                       fprintf( stderr,
+                                                       Debug( LDAP_DEBUG_ANY,
                                                                "%s: line %d: group objectclass "
-                                                               "\"%s\" unknown\n",
+                                                               "\"%s\" unknown.\n",
                                                                fname, lineno, value );
-                                                       acl_usage();
+                                                       goto fail;
                                                }
 
                                        } else {
-                                               b->a_group_oc = oc_find(SLAPD_GROUP_CLASS);
+                                               b->a_group_oc = oc_find( SLAPD_GROUP_CLASS );
 
                                                if( b->a_group_oc == NULL ) {
-                                                       fprintf( stderr,
+                                                       Debug( LDAP_DEBUG_ANY,
                                                                "%s: line %d: group default objectclass "
-                                                               "\"%s\" unknown\n",
+                                                               "\"%s\" unknown.\n",
                                                                fname, lineno, SLAPD_GROUP_CLASS );
-                                                       acl_usage();
+                                                       goto fail;
                                                }
                                        }
 
                                        if ( is_object_subclass( slap_schema.si_oc_referral,
                                                b->a_group_oc ) )
                                        {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: group objectclass \"%s\" "
-                                                       "is subclass of referral\n",
+                                                       "is subclass of referral.\n",
                                                        fname, lineno, value );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( is_object_subclass( slap_schema.si_oc_alias,
                                                b->a_group_oc ) )
                                        {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: group objectclass \"%s\" "
-                                                       "is subclass of alias\n",
+                                                       "is subclass of alias.\n",
                                                        fname, lineno, value );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( name && *name ) {
-                                               rc = slap_str2ad( name, &b->a_group_at, &text );
-
-                                               if( rc != LDAP_SUCCESS ) {
-                                                       fprintf( stderr,
-                                                               "%s: line %d: group \"%s\": %s\n",
-                                                               fname, lineno, right, text );
-                                                       acl_usage();
-                                               }
+                                               attr_name = name;
                                                *--name = '/';
 
-                                       } else {
-                                               rc = slap_str2ad( SLAPD_GROUP_ATTR, &b->a_group_at, &text );
+                                       }
 
-                                               if ( rc != LDAP_SUCCESS ) {
-                                                       fprintf( stderr,
-                                                               "%s: line %d: group \"%s\": %s\n",
-                                                               fname, lineno, SLAPD_GROUP_ATTR, text );
-                                                       acl_usage();
-                                               }
+                                       rc = slap_str2ad( attr_name, &b->a_group_at, &text );
+                                       if ( rc != LDAP_SUCCESS ) {
+                                               char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                               snprintf( buf, sizeof( buf ),
+                                                       "group \"%s\": %s.",
+                                                       right, text );
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: %s\n",
+                                                       fname, lineno, buf );
+                                               goto fail;
                                        }
 
                                        if ( !is_at_syntax( b->a_group_at->ad_type,
-                                               SLAPD_DN_SYNTAX ) &&
-                                               !is_at_syntax( b->a_group_at->ad_type,
-                                               SLAPD_NAMEUID_SYNTAX ) &&
-                                               !is_at_subtype( b->a_group_at->ad_type, slap_schema.si_ad_labeledURI->ad_type ) )
+                                                       SLAPD_DN_SYNTAX ) /* e.g. "member" */
+                                               && !is_at_syntax( b->a_group_at->ad_type,
+                                                       SLAPD_NAMEUID_SYNTAX ) /* e.g. memberUID */
+                                               && !is_at_subtype( b->a_group_at->ad_type,
+                                                       slap_schema.si_ad_labeledURI->ad_type ) /* e.g. memberURL */ )
                                        {
-                                               fprintf( stderr,
-                                                       "%s: line %d: group \"%s\": inappropriate syntax: %s\n",
-                                                       fname, lineno, right,
-                                                       b->a_group_at->ad_type->sat_syntax_oid );
-                                               acl_usage();
+                                               char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                               snprintf( buf, sizeof( buf ),
+                                                       "group \"%s\" attr \"%s\": inappropriate syntax: %s; "
+                                                       "must be " SLAPD_DN_SYNTAX " (DN), "
+                                                       SLAPD_NAMEUID_SYNTAX " (NameUID) "
+                                                       "or a subtype of labeledURI.",
+                                                       right,
+                                                       attr_name,
+                                                       at_syntax( b->a_group_at->ad_type ) );
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: %s\n",
+                                                       fname, lineno, buf );
+                                               goto fail;
                                        }
 
 
                                        {
                                                int rc;
-                                               struct berval vals[2];
+                                               ObjectClass *ocs[2];
 
-                                               ber_str2bv( b->a_group_oc->soc_oid, 0, 0, &vals[0] );
-                                               BER_BVZERO( &vals[1] );
+                                               ocs[0] = b->a_group_oc;
+                                               ocs[1] = NULL;
 
                                                rc = oc_check_allowed( b->a_group_at->ad_type,
-                                                       vals, NULL );
+                                                       ocs, NULL );
 
                                                if( rc != 0 ) {
-                                                       fprintf( stderr, "%s: line %d: "
-                                                               "group: \"%s\" not allowed by \"%s\"\n",
-                                                               fname, lineno,
+                                                       char    buf[ SLAP_TEXT_BUFLEN ];
+
+                                                       snprintf( buf, sizeof( buf ),
+                                                               "group: \"%s\" not allowed by \"%s\".",
                                                                b->a_group_at->ad_cname.bv_val,
                                                                b->a_group_oc->soc_oid );
-                                                       acl_usage();
+                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: %s\n",
+                                                               fname, lineno, buf );
+                                                       goto fail;
                                                }
                                        }
                                        continue;
@@ -1020,30 +1303,31 @@ parse_acl(
                                        case ACL_STYLE_EXPAND:
                                                /* cheap replacement to regex for simple expansion */
                                        case ACL_STYLE_IP:
+                                       case ACL_STYLE_IPV6:
                                        case ACL_STYLE_PATH:
                                                /* legal, peername specific */
                                                break;
 
                                        default:
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                    fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || right[0] == '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "missing \"=\" in (or value after) \"%s\" "
-                                                       "in by clause\n",
+                                                       "in by clause.\n",
                                                        fname, lineno, left );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
-                                       if ( BER_BVISEMPTY( &b->a_peername_pat ) ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                       if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "peername pattern already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        b->a_peername_style = sty;
@@ -1068,10 +1352,10 @@ parse_acl(
                                                        b->a_peername_addr = inet_addr( addr );
                                                        if ( b->a_peername_addr == (unsigned long)(-1) ) {
                                                                /* illegal address */
-                                                               fprintf( stderr, "%s: line %d: "
+                                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                                        "illegal peername address \"%s\".\n",
                                                                        fname, lineno, addr );
-                                                               acl_usage();
+                                                               goto fail;
                                                        }
 
                                                        b->a_peername_mask = (unsigned long)(-1);
@@ -1081,11 +1365,11 @@ parse_acl(
                                                                        (unsigned long)(-1) )
                                                                {
                                                                        /* illegal mask */
-                                                                       fprintf( stderr, "%s: line %d: "
+                                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                                                "illegal peername address mask "
                                                                                "\"%s\".\n",
                                                                                fname, lineno, mask );
-                                                                       acl_usage();
+                                                                       goto fail;
                                                                }
                                                        } 
 
@@ -1094,15 +1378,61 @@ parse_acl(
                                                                char    *end = NULL;
 
                                                                b->a_peername_port = strtol( port, &end, 10 );
-                                                               if ( end[0] != '}' ) {
+                                                               if ( end == port || end[0] != '}' ) {
+                                                                       /* illegal port */
+                                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                                               "illegal peername port specification "
+                                                                               "\"{%s}\".\n",
+                                                                               fname, lineno, port );
+                                                                       goto fail;
+                                                               }
+                                                       }
+
+#ifdef LDAP_PF_INET6
+                                               } else if ( sty == ACL_STYLE_IPV6 ) {
+                                                       char            *addr = NULL,
+                                                                       *mask = NULL,
+                                                                       *port = NULL;
+
+                                                       split( right, '{', &addr, &port );
+                                                       split( addr, '%', &addr, &mask );
+
+                                                       if ( inet_pton( AF_INET6, addr, &b->a_peername_addr6 ) != 1 ) {
+                                                               /* illegal address */
+                                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                                       "illegal peername address \"%s\".\n",
+                                                                       fname, lineno, addr );
+                                                               goto fail;
+                                                       }
+
+                                                       if ( mask == NULL ) {
+                                                               mask = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF";
+                                                       }
+
+                                                       if ( inet_pton( AF_INET6, mask, &b->a_peername_mask6 ) != 1 ) {
+                                                               /* illegal mask */
+                                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                                       "illegal peername address mask "
+                                                                       "\"%s\".\n",
+                                                                       fname, lineno, mask );
+                                                               goto fail;
+                                                       }
+
+                                                       b->a_peername_port = -1;
+                                                       if ( port ) {
+                                                               char    *end = NULL;
+
+                                                               b->a_peername_port = strtol( port, &end, 10 );
+                                                               if ( end == port || end[0] != '}' ) {
                                                                        /* illegal port */
-                                                                       fprintf( stderr, "%s: line %d: "
+                                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                                                "illegal peername port specification "
                                                                                "\"{%s}\".\n",
                                                                                fname, lineno, port );
-                                                                       acl_usage();
+                                                                       goto fail;
                                                                }
                                                        }
+#endif /* LDAP_PF_INET6 */
                                                }
                                        }
                                        continue;
@@ -1119,25 +1449,25 @@ parse_acl(
 
                                        default:
                                                /* unknown */
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "inappropriate style \"%s\" in by clause\n",
                                                    fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || right[0] == '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "missing \"=\" in (or value after) \"%s\" "
                                                        "in by clause\n",
                                                        fname, lineno, left );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !BER_BVISNULL( &b->a_sockname_pat ) ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "sockname pattern already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        b->a_sockname_style = sty;
@@ -1165,11 +1495,11 @@ parse_acl(
                                        case ACL_STYLE_EXPAND:
                                                /* tolerated: means exact,expand */
                                                if ( expand ) {
-                                                       fprintf( stderr,
+                                                       Debug( LDAP_DEBUG_ANY,
                                                                "%s: line %d: "
                                                                "\"expand\" modifier "
-                                                               "with \"expand\" style\n",
-                                                               fname, lineno );
+                                                               "with \"expand\" style.\n",
+                                                               fname, lineno, 0 );
                                                }
                                                sty = ACL_STYLE_BASE;
                                                expand = 1;
@@ -1177,25 +1507,25 @@ parse_acl(
 
                                        default:
                                                /* unknown */
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                    fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || right[0] == '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "missing \"=\" in (or value after) \"%s\" "
-                                                       "in by clause\n",
+                                                       "in by clause.\n",
                                                        fname, lineno, left );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: domain pattern already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        b->a_domain_style = sty;
@@ -1224,25 +1554,25 @@ parse_acl(
 
                                        default:
                                                /* unknown */
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                    fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || right[0] == '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "missing \"=\" in (or value after) \"%s\" "
-                                                       "in by clause\n",
+                                                       "in by clause.\n",
                                                        fname, lineno, left );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: sockurl pattern already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        b->a_sockurl_style = sty;
@@ -1263,11 +1593,12 @@ parse_acl(
                                        switch ( sty ) {
                                                /* deprecated */
                                        case ACL_STYLE_REGEX:
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_CONFIG | LDAP_DEBUG_ACL,
+                                                       "%s: line %d: "
                                                        "deprecated set style "
                                                        "\"regex\" in <by> clause; "
-                                                       "use \"expand\" instead\n",
-                                                       fname, lineno );
+                                                       "use \"expand\" instead.\n",
+                                                       fname, lineno, 0 );
                                                sty = ACL_STYLE_EXPAND;
                                                /* FALLTHRU */
                                                
@@ -1276,24 +1607,24 @@ parse_acl(
                                                break;
 
                                        default:
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                        fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: set attribute already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || *right == '\0' ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: no set is defined\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: no set is defined.\n",
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        b->a_set_style = sty;
@@ -1304,225 +1635,189 @@ parse_acl(
 
 #ifdef SLAP_DYNACL
                                {
-                                       char            *name = NULL;
-                                       
+                                       char            *name = NULL,
+                                                       *opts = NULL;
+
+#if 1 /* tolerate legacy "aci" <who> */
                                        if ( strcasecmp( left, "aci" ) == 0 ) {
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "undocumented deprecated \"aci\" directive "
+                                                       "is superseded by \"dynacl/aci\".\n",
+                                                       fname, lineno, 0 );
                                                name = "aci";
                                                
-                                       } else if ( strncasecmp( left, "dynacl/", STRLENOF( "dynacl/" ) ) == 0 ) {
+                                       } else
+#endif /* tolerate legacy "aci" <who> */
+                                       if ( strncasecmp( left, "dynacl/", STRLENOF( "dynacl/" ) ) == 0 ) {
                                                name = &left[ STRLENOF( "dynacl/" ) ];
+                                               opts = strchr( name, '/' );
+                                               if ( opts ) {
+                                                       opts[ 0 ] = '\0';
+                                                       opts++;
+                                               }
                                        }
 
                                        if ( name ) {
-                                               if ( slap_dynacl_config( fname, lineno, b, name, sty, right ) ) {
-                                                       fprintf( stderr, "%s: line %d: "
-                                                               "unable to configure dynacl \"%s\"\n",
+                                               if ( slap_dynacl_config( fname, lineno, b, name, opts, sty, right ) ) {
+                                                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                               "unable to configure dynacl \"%s\".\n",
                                                                fname, lineno, name );
-                                                       acl_usage();
+                                                       goto fail;
                                                }
 
                                                continue;
                                        }
                                }
-#else /* ! SLAP_DYNACL */
-
-#ifdef SLAPD_ACI_ENABLED
-                               if ( strcasecmp( left, "aci" ) == 0 ) {
-                                       if (sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
-                                                   fname, lineno, style );
-                                               acl_usage();
-                                       }
-
-                                       if( b->a_aci_at != NULL ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: aci attribute already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
-                                       }
-
-                                       if ( right != NULL && *right != '\0' ) {
-                                               rc = slap_str2ad( right, &b->a_aci_at, &text );
-
-                                               if( rc != LDAP_SUCCESS ) {
-                                                       fprintf( stderr,
-                                                               "%s: line %d: aci \"%s\": %s\n",
-                                                               fname, lineno, right, text );
-                                                       acl_usage();
-                                               }
-
-                                       } else {
-                                               b->a_aci_at = slap_schema.si_ad_aci;
-                                       }
-
-                                       if( !is_at_syntax( b->a_aci_at->ad_type,
-                                               SLAPD_ACI_SYNTAX) )
-                                       {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "aci \"%s\": inappropriate syntax: %s\n",
-                                                       fname, lineno, right,
-                                                       b->a_aci_at->ad_type->sat_syntax_oid );
-                                               acl_usage();
-                                       }
-
-                                       continue;
-                               }
-#endif /* SLAPD_ACI_ENABLED */
-#endif /* ! SLAP_DYNACL */
+#endif /* SLAP_DYNACL */
 
                                if ( strcasecmp( left, "ssf" ) == 0 ) {
                                        if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                    fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( b->a_authz.sai_ssf ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: ssf attribute already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || *right == '\0' ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: no ssf is defined\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: no ssf is defined.\n",
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
-                                       b->a_authz.sai_ssf = strtol( right, &next, 10 );
-                                       if ( next == NULL || next[0] != '\0' ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: unable to parse ssf value (%s)\n",
+                                       if ( lutil_atou( &b->a_authz.sai_ssf, right ) != 0 ) {
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: unable to parse ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !b->a_authz.sai_ssf ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: invalid ssf value (%s)\n",
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: invalid ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
                                        continue;
                                }
 
                                if ( strcasecmp( left, "transport_ssf" ) == 0 ) {
                                        if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                        fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( b->a_authz.sai_transport_ssf ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "transport_ssf attribute already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || *right == '\0' ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: no transport_ssf is defined\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: no transport_ssf is defined.\n",
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
-                                       b->a_authz.sai_transport_ssf = strtol( right, &next, 10 );
-                                       if ( next == NULL || next[0] != '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "unable to parse transport_ssf value (%s)\n",
+                                       if ( lutil_atou( &b->a_authz.sai_transport_ssf, right ) != 0 ) {
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "unable to parse transport_ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !b->a_authz.sai_transport_ssf ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: invalid transport_ssf value (%s)\n",
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: invalid transport_ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
                                        continue;
                                }
 
                                if ( strcasecmp( left, "tls_ssf" ) == 0 ) {
                                        if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                        fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( b->a_authz.sai_tls_ssf ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "tls_ssf attribute already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || *right == '\0' ) {
-                                               fprintf( stderr,
+                                               Debug( LDAP_DEBUG_ANY,
                                                        "%s: line %d: no tls_ssf is defined\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
-                                       b->a_authz.sai_tls_ssf = strtol( right, &next, 10 );
-                                       if ( next == NULL || next[0] != '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "unable to parse tls_ssf value (%s)\n",
+                                       if ( lutil_atou( &b->a_authz.sai_tls_ssf, right ) != 0 ) {
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "unable to parse tls_ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !b->a_authz.sai_tls_ssf ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: invalid tls_ssf value (%s)\n",
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: invalid tls_ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
                                        continue;
                                }
 
                                if ( strcasecmp( left, "sasl_ssf" ) == 0 ) {
                                        if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "inappropriate style \"%s\" in by clause\n",
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "inappropriate style \"%s\" in by clause.\n",
                                                        fname, lineno, style );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( b->a_authz.sai_sasl_ssf ) {
-                                               fprintf( stderr, "%s: line %d: "
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
                                                        "sasl_ssf attribute already specified.\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
                                        if ( right == NULL || *right == '\0' ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: no sasl_ssf is defined\n",
-                                                       fname, lineno );
-                                               acl_usage();
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: no sasl_ssf is defined.\n",
+                                                       fname, lineno, 0 );
+                                               goto fail;
                                        }
 
-                                       b->a_authz.sai_sasl_ssf = strtol( right, &next, 10 );
-                                       if ( next == NULL || next[0] != '\0' ) {
-                                               fprintf( stderr, "%s: line %d: "
-                                                       "unable to parse sasl_ssf value (%s)\n",
+                                       if ( lutil_atou( &b->a_authz.sai_sasl_ssf, right ) != 0 ) {
+                                               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                                                       "unable to parse sasl_ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
 
                                        if ( !b->a_authz.sai_sasl_ssf ) {
-                                               fprintf( stderr,
-                                                       "%s: line %d: invalid sasl_ssf value (%s)\n",
+                                               Debug( LDAP_DEBUG_ANY,
+                                                       "%s: line %d: invalid sasl_ssf value (%s).\n",
                                                        fname, lineno, right );
-                                               acl_usage();
+                                               goto fail;
                                        }
                                        continue;
                                }
@@ -1538,6 +1833,7 @@ parse_acl(
                                /* out of arguments or plain stop */
 
                                ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
+                               ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
                                b->a_type = ACL_STOP;
 
                                access_append( &a->acl_access, b );
@@ -1548,6 +1844,7 @@ parse_acl(
                                /* plain continue */
 
                                ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
+                               ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
                                b->a_type = ACL_CONTINUE;
 
                                access_append( &a->acl_access, b );
@@ -1558,6 +1855,7 @@ parse_acl(
                                /* plain continue */
 
                                ACL_PRIV_ASSIGN(b->a_access_mask, ACL_PRIV_ADDITIVE);
+                               ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
                                b->a_type = ACL_BREAK;
 
                                access_append( &a->acl_access, b );
@@ -1568,6 +1866,7 @@ parse_acl(
                                /* we've gone too far */
                                --i;
                                ACL_PRIV_ASSIGN( b->a_access_mask, ACL_PRIV_ADDITIVE );
+                               ACL_PRIV_SET( b->a_access_mask, ACL_PRIV_NONE);
                                b->a_type = ACL_STOP;
 
                                access_append( &a->acl_access, b );
@@ -1575,19 +1874,26 @@ parse_acl(
                        }
 
                        /* get <access> */
-                       if ( strncasecmp( left, "self", 4 ) == 0 ) {
-                               b->a_dn_self = 1;
-                               ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( &left[4] ) );
+                       {
+                               char    *lleft = left;
 
-                       } else {
-                               ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( left ) );
+                               if ( strncasecmp( left, "self", STRLENOF( "self" ) ) == 0 ) {
+                                       b->a_dn_self = 1;
+                                       lleft = &left[ STRLENOF( "self" ) ];
+
+                               } else if ( strncasecmp( left, "realself", STRLENOF( "realself" ) ) == 0 ) {
+                                       b->a_realdn_self = 1;
+                                       lleft = &left[ STRLENOF( "realself" ) ];
+                               }
+
+                               ACL_PRIV_ASSIGN( b->a_access_mask, str2accessmask( lleft ) );
                        }
 
                        if ( ACL_IS_INVALID( b->a_access_mask ) ) {
-                               fprintf( stderr,
-                                       "%s: line %d: expecting <access> got \"%s\"\n",
+                               Debug( LDAP_DEBUG_ANY,
+                                       "%s: line %d: expecting <access> got \"%s\".\n",
                                        fname, lineno, left );
-                               acl_usage();
+                               goto fail;
                        }
 
                        b->a_type = ACL_STOP;
@@ -1612,79 +1918,100 @@ parse_acl(
                        }
 
                        access_append( &a->acl_access, b );
+                       b = NULL;
 
                } else {
-                       fprintf( stderr,
+                       Debug( LDAP_DEBUG_ANY,
                                "%s: line %d: expecting \"to\" "
                                "or \"by\" got \"%s\"\n",
                                fname, lineno, argv[i] );
-                       acl_usage();
+                       goto fail;
                }
        }
 
        /* if we have no real access clause, complain and do nothing */
        if ( a == NULL ) {
-               fprintf( stderr, "%s: line %d: "
-                       "warning: no access clause(s) specified in access line\n",
-                       fname, lineno );
+               Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                       "warning: no access clause(s) specified in access line.\n",
+                       fname, lineno, 0 );
+               goto fail;
 
        } else {
 #ifdef LDAP_DEBUG
-               if ( ldap_debug & LDAP_DEBUG_ACL ) {
+               if ( slap_debug & LDAP_DEBUG_ACL ) {
                        print_acl( be, a );
                }
 #endif
        
                if ( a->acl_access == NULL ) {
-                       fprintf( stderr, "%s: line %d: "
-                               "warning: no by clause(s) specified in access line\n",
-                               fname, lineno );
+                       Debug( LDAP_DEBUG_ANY, "%s: line %d: "
+                               "warning: no by clause(s) specified in access line.\n",
+                               fname, lineno, 0 );
+                       goto fail;
                }
 
                if ( be != NULL ) {
-#ifdef LDAP_DEVEL
-                       switch ( check_scope( be, a ) ) {
-                       case ACL_SCOPE_UNKNOWN:
-                               fprintf( stderr, "%s: line %d: warning: "
-                                       "cannot assess the validity of the ACL scope within "
-                                       "backend naming context\n",
-                                       fname, lineno );
-                               break;
-
-                       case ACL_SCOPE_WARN:
-                               fprintf( stderr, "%s: line %d: warning: "
-                                       "ACL could be out of scope within backend naming context\n",
-                                       fname, lineno );
-                               break;
+                       if ( be->be_nsuffix == NULL ) {
+                               Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
+                                       "scope checking needs suffix before ACLs.\n",
+                                       fname, lineno, 0 );
+                               /* go ahead, since checking is not authoritative */
+                       } else if ( !BER_BVISNULL( &be->be_nsuffix[ 1 ] ) ) {
+                               Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
+                                       "scope checking only applies to single-valued "
+                                       "suffix databases\n",
+                                       fname, lineno, 0 );
+                               /* go ahead, since checking is not authoritative */
+                       } else {
+                               switch ( check_scope( be, a ) ) {
+                               case ACL_SCOPE_UNKNOWN:
+                                       Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
+                                               "cannot assess the validity of the ACL scope within "
+                                               "backend naming context\n",
+                                               fname, lineno, 0 );
+                                       break;
 
-                       case ACL_SCOPE_PARTIAL:
-                               fprintf( stderr, "%s: line %d: warning: "
-                                       "ACL appears to be partially out of scope within "
-                                       "backend naming context\n",
-                                       fname, lineno );
-                               break;
+                               case ACL_SCOPE_WARN:
+                                       Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
+                                               "ACL could be out of scope within backend naming context\n",
+                                               fname, lineno, 0 );
+                                       break;
 
-                       case ACL_SCOPE_ERR:
-                               fprintf( stderr, "%s: line %d: warning: "
-                                       "ACL appears to be out of scope within "
-                                       "backend naming context\n",
-                                       fname, lineno );
-                               break;
+                               case ACL_SCOPE_PARTIAL:
+                                       Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
+                                               "ACL appears to be partially out of scope within "
+                                               "backend naming context\n",
+                                               fname, lineno, 0 );
+                                       break;
+       
+                               case ACL_SCOPE_ERR:
+                                       Debug( LDAP_DEBUG_ACL, "%s: line %d: warning: "
+                                               "ACL appears to be out of scope within "
+                                               "backend naming context\n",
+                                               fname, lineno, 0 );
+                                       break;
 
-                       default:
-                               break;
+                               default:
+                                       break;
+                               }
                        }
-#endif /* LDAP_DEVEL */
-                       acl_append( &be->be_acl, a );
+                       acl_append( &be->be_acl, a, pos );
 
                } else {
-                       acl_append( &frontendDB->be_acl, a );
+                       acl_append( &frontendDB->be_acl, a, pos );
                }
        }
+
+       return 0;
+
+fail:
+       if ( b ) access_free( b );
+       if ( a ) acl_free( a );
+       return acl_usage();
 }
 
 char *
-accessmask2str( slap_mask_t mask, char *buf )
+accessmask2str( slap_mask_t mask, char *buf, int debug )
 {
        int     none = 1;
        char    *ptr = buf;
@@ -1701,6 +2028,9 @@ accessmask2str( slap_mask_t mask, char *buf )
                if ( ACL_LVL_IS_NONE(mask) ) {
                        ptr = lutil_strcopy( ptr, "none" );
 
+               } else if ( ACL_LVL_IS_DISCLOSE(mask) ) {
+                       ptr = lutil_strcopy( ptr, "disclose" );
+
                } else if ( ACL_LVL_IS_AUTH(mask) ) {
                        ptr = lutil_strcopy( ptr, "auth" );
 
@@ -1715,10 +2045,24 @@ accessmask2str( slap_mask_t mask, char *buf )
 
                } else if ( ACL_LVL_IS_WRITE(mask) ) {
                        ptr = lutil_strcopy( ptr, "write" );
+
+               } else if ( ACL_LVL_IS_WADD(mask) ) {
+                       ptr = lutil_strcopy( ptr, "add" );
+
+               } else if ( ACL_LVL_IS_WDEL(mask) ) {
+                       ptr = lutil_strcopy( ptr, "delete" );
+
+               } else if ( ACL_LVL_IS_MANAGE(mask) ) {
+                       ptr = lutil_strcopy( ptr, "manage" );
+
                } else {
                        ptr = lutil_strcopy( ptr, "unknown" );
                }
                
+               if ( !debug ) {
+                       *ptr = '\0';
+                       return buf;
+               }
                *ptr++ = '(';
        }
 
@@ -1732,9 +2076,22 @@ accessmask2str( slap_mask_t mask, char *buf )
                *ptr++ = '=';
        }
 
+       if ( ACL_PRIV_ISSET(mask, ACL_PRIV_MANAGE) ) {
+               none = 0;
+               *ptr++ = 'm';
+       } 
+
        if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WRITE) ) {
                none = 0;
                *ptr++ = 'w';
+
+       } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WADD) ) {
+               none = 0;
+               *ptr++ = 'a';
+
+       } else if ( ACL_PRIV_ISSET(mask, ACL_PRIV_WDEL) ) {
+               none = 0;
+               *ptr++ = 'z';
        } 
 
        if ( ACL_PRIV_ISSET(mask, ACL_PRIV_READ) ) {
@@ -1757,13 +2114,18 @@ accessmask2str( slap_mask_t mask, char *buf )
                *ptr++ = 'x';
        } 
 
+       if ( ACL_PRIV_ISSET(mask, ACL_PRIV_DISCLOSE) ) {
+               none = 0;
+               *ptr++ = 'd';
+       } 
+
        if ( none && ACL_PRIV_ISSET(mask, ACL_PRIV_NONE) ) {
                none = 0;
-               *ptr++ = 'n';
+               *ptr++ = '0';
        } 
 
        if ( none ) {
-               *ptr++ = '0';
+               ptr = buf;
        }
 
        if ( ACL_IS_LEVEL( mask ) ) {
@@ -1798,9 +2160,18 @@ str2accessmask( const char *str )
                }
 
                for( i=1; str[i] != '\0'; i++ ) {
-                       if( TOLOWER((unsigned char) str[i]) == 'w' ) {
+                       if( TOLOWER((unsigned char) str[i]) == 'm' ) {
+                               ACL_PRIV_SET(mask, ACL_PRIV_MANAGE);
+
+                       } else if( TOLOWER((unsigned char) str[i]) == 'w' ) {
                                ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
 
+                       } else if( TOLOWER((unsigned char) str[i]) == 'a' ) {
+                               ACL_PRIV_SET(mask, ACL_PRIV_WADD);
+
+                       } else if( TOLOWER((unsigned char) str[i]) == 'z' ) {
+                               ACL_PRIV_SET(mask, ACL_PRIV_WDEL);
+
                        } else if( TOLOWER((unsigned char) str[i]) == 'r' ) {
                                ACL_PRIV_SET(mask, ACL_PRIV_READ);
 
@@ -1813,7 +2184,13 @@ str2accessmask( const char *str )
                        } else if( TOLOWER((unsigned char) str[i]) == 'x' ) {
                                ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
 
-                       } else if( str[i] != '0' ) {
+                       } else if( TOLOWER((unsigned char) str[i]) == 'd' ) {
+                               ACL_PRIV_SET(mask, ACL_PRIV_DISCLOSE);
+
+                       } else if( str[i] == '0' ) {
+                               ACL_PRIV_SET(mask, ACL_PRIV_NONE);
+
+                       } else {
                                ACL_INVALIDATE(mask);
                                return mask;
                        }
@@ -1825,6 +2202,9 @@ str2accessmask( const char *str )
        if ( strcasecmp( str, "none" ) == 0 ) {
                ACL_LVL_ASSIGN_NONE(mask);
 
+       } else if ( strcasecmp( str, "disclose" ) == 0 ) {
+               ACL_LVL_ASSIGN_DISCLOSE(mask);
+
        } else if ( strcasecmp( str, "auth" ) == 0 ) {
                ACL_LVL_ASSIGN_AUTH(mask);
 
@@ -1837,9 +2217,18 @@ str2accessmask( const char *str )
        } else if ( strcasecmp( str, "read" ) == 0 ) {
                ACL_LVL_ASSIGN_READ(mask);
 
+       } else if ( strcasecmp( str, "add" ) == 0 ) {
+               ACL_LVL_ASSIGN_WADD(mask);
+
+       } else if ( strcasecmp( str, "delete" ) == 0 ) {
+               ACL_LVL_ASSIGN_WDEL(mask);
+
        } else if ( strcasecmp( str, "write" ) == 0 ) {
                ACL_LVL_ASSIGN_WRITE(mask);
 
+       } else if ( strcasecmp( str, "manage" ) == 0 ) {
+               ACL_LVL_ASSIGN_MANAGE(mask);
+
        } else {
                ACL_INVALIDATE( mask );
        }
@@ -1847,35 +2236,52 @@ str2accessmask( const char *str )
        return mask;
 }
 
-static void
+static int
 acl_usage( void )
 {
-       fprintf( stderr, "%s%s%s\n",
+       char *access =
                "<access clause> ::= access to <what> "
-                               "[ by <who> <access> [ <control> ] ]+ \n"
-               "<what> ::= * | [dn[.<dnstyle>]=<DN>] [filter=<filter>] [attrs=<attrlist>]\n"
-               "<attrlist> ::= <attr> [val[.<style>]=<value>] | <attr> , <attrlist>\n"
-               "<attr> ::= <attrname> | entry | children\n",
+                               "[ by <who> [ <access> ] [ <control> ] ]+ \n";
+       char *what =
+               "<what> ::= * | dn[.<dnstyle>=<DN>] [filter=<filter>] [attrs=<attrspec>]\n"
+               "<attrspec> ::= <attrname> [val[/<matchingRule>][.<attrstyle>]=<value>] | <attrlist>\n"
+               "<attrlist> ::= <attr> [ , <attrlist> ]\n"
+               "<attr> ::= <attrname> | @<objectClass> | !<objectClass> | entry | children\n";
+
+       char *who =
                "<who> ::= [ * | anonymous | users | self | dn[.<dnstyle>]=<DN> ]\n"
+                       "\t[ realanonymous | realusers | realself | realdn[.<dnstyle>]=<DN> ]\n"
                        "\t[dnattr=<attrname>]\n"
+                       "\t[realdnattr=<attrname>]\n"
                        "\t[group[/<objectclass>[/<attrname>]][.<style>]=<group>]\n"
                        "\t[peername[.<peernamestyle>]=<peer>] [sockname[.<style>]=<name>]\n"
                        "\t[domain[.<domainstyle>]=<domain>] [sockurl[.<style>]=<url>]\n"
-#ifdef SLAPD_ACI_ENABLED
-                       "\t[aci=<attrname>]\n"
-#endif
-                       "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n",
+#ifdef SLAP_DYNACL
+                       "\t[dynacl/<name>[/<options>][.<dynstyle>][=<pattern>]]\n"
+#endif /* SLAP_DYNACL */
+                       "\t[ssf=<n>] [transport_ssf=<n>] [tls_ssf=<n>] [sasl_ssf=<n>]\n"
+               "<style> ::= exact | regex | base(Object)\n"
                "<dnstyle> ::= base(Object) | one(level) | sub(tree) | children | "
                        "exact | regex\n"
-               "<style> ::= exact | regex | base(Object)\n"
-               "<peernamestyle> ::= exact | regex | ip | path\n"
+               "<attrstyle> ::= exact | regex | base(Object) | one(level) | "
+                       "sub(tree) | children\n"
+               "<peernamestyle> ::= exact | regex | ip | ipv6 | path\n"
                "<domainstyle> ::= exact | regex | base(Object) | sub(tree)\n"
-               "<access> ::= [self]{<level>|<priv>}\n"
-               "<level> ::= none | auth | compare | search | read | write\n"
-               "<priv> ::= {=|+|-}{w|r|s|c|x|0}+\n"
+               "<access> ::= [[real]self]{<level>|<priv>}\n"
+               "<level> ::= none|disclose|auth|compare|search|read|{write|add|delete}|manage\n"
+               "<priv> ::= {=|+|-}{0|d|x|c|s|r|{w|a|z}|m}+\n"
                "<control> ::= [ stop | continue | break ]\n"
-       );
-       exit( EXIT_FAILURE );
+#ifdef SLAP_DYNACL
+#ifdef SLAPD_ACI_ENABLED
+               "dynacl:\n"
+               "\t<name>=ACI\t<pattern>=<attrname>\n"
+#endif /* SLAPD_ACI_ENABLED */
+#endif /* ! SLAP_DYNACL */
+               "";
+
+       Debug( LDAP_DEBUG_ANY, "%s%s%s\n", access, what, who );
+
+       return 1;
 }
 
 /*
@@ -1949,12 +2355,15 @@ access_append( Access **l, Access *a )
 }
 
 void
-acl_append( AccessControl **l, AccessControl *a )
+acl_append( AccessControl **l, AccessControl *a, int pos )
 {
-       for ( ; *l != NULL; l = &(*l)->acl_next ) {
+       int i;
+
+       for (i=0 ; i != pos && *l != NULL; l = &(*l)->acl_next, i++ ) {
                ;       /* Empty */
        }
-
+       if ( *l && a )
+               a->acl_next = *l;
        *l = a;
 }
 
@@ -1964,6 +2373,9 @@ access_free( Access *a )
        if ( !BER_BVISNULL( &a->a_dn_pat ) ) {
                free( a->a_dn_pat.bv_val );
        }
+       if ( !BER_BVISNULL( &a->a_realdn_pat ) ) {
+               free( a->a_realdn_pat.bv_val );
+       }
        if ( !BER_BVISNULL( &a->a_peername_pat ) ) {
                free( a->a_peername_pat.bv_val );
        }
@@ -1982,6 +2394,22 @@ access_free( Access *a )
        if ( !BER_BVISNULL( &a->a_group_pat ) ) {
                free( a->a_group_pat.bv_val );
        }
+#ifdef SLAP_DYNACL
+       if ( a->a_dynacl != NULL ) {
+               slap_dynacl_t   *da;
+               for ( da = a->a_dynacl; da; ) {
+                       slap_dynacl_t   *tmp = da;
+
+                       da = da->da_next;
+
+                       if ( tmp->da_destroy ) {
+                               tmp->da_destroy( tmp->da_private );
+                       }
+
+                       ch_free( tmp );
+               }
+       }
+#endif /* SLAP_DYNACL */
        free( a );
 }
 
@@ -1995,6 +2423,9 @@ acl_free( AccessControl *a )
                filter_free( a->acl_filter );
        }
        if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
+               if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
+                       regfree( &a->acl_dn_re );
+               }
                free ( a->acl_dn_pat.bv_val );
        }
        if ( a->acl_attrs ) {
@@ -2002,6 +2433,14 @@ acl_free( AccessControl *a )
                        free( an->an_name.bv_val );
                }
                free( a->acl_attrs );
+
+               if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
+                       regfree( &a->acl_attrval_re );
+               }
+
+               if ( !BER_BVISNULL( &a->acl_attrval ) ) {
+                       ber_memfree( a->acl_attrval.bv_val );
+               }
        }
        for ( ; a->acl_access; a->acl_access = n ) {
                n = a->acl_access->a_next;
@@ -2022,7 +2461,7 @@ acl_destroy( AccessControl *a, AccessControl *end )
 {
        AccessControl *n;
 
-       for (; a && a!= end; a=n) {
+       for ( ; a && a != end; a = n ) {
                n = a->acl_next;
                acl_free( a );
        }
@@ -2034,6 +2473,9 @@ access2str( slap_access_t access )
        if ( access == ACL_NONE ) {
                return "none";
 
+       } else if ( access == ACL_DISCLOSE ) {
+               return "disclose";
+
        } else if ( access == ACL_AUTH ) {
                return "auth";
 
@@ -2048,6 +2490,16 @@ access2str( slap_access_t access )
 
        } else if ( access == ACL_WRITE ) {
                return "write";
+
+       } else if ( access == ACL_WADD ) {
+               return "add";
+
+       } else if ( access == ACL_WDEL ) {
+               return "delete";
+
+       } else if ( access == ACL_MANAGE ) {
+               return "manage";
+
        }
 
        return "unknown";
@@ -2059,6 +2511,9 @@ str2access( const char *str )
        if ( strcasecmp( str, "none" ) == 0 ) {
                return ACL_NONE;
 
+       } else if ( strcasecmp( str, "disclose" ) == 0 ) {
+               return ACL_DISCLOSE;
+
        } else if ( strcasecmp( str, "auth" ) == 0 ) {
                return ACL_AUTH;
 
@@ -2073,64 +2528,160 @@ str2access( const char *str )
 
        } else if ( strcasecmp( str, "write" ) == 0 ) {
                return ACL_WRITE;
+
+       } else if ( strcasecmp( str, "add" ) == 0 ) {
+               return ACL_WADD;
+
+       } else if ( strcasecmp( str, "delete" ) == 0 ) {
+               return ACL_WDEL;
+
+       } else if ( strcasecmp( str, "manage" ) == 0 ) {
+               return ACL_MANAGE;
        }
 
        return( ACL_INVALID_ACCESS );
 }
 
-#ifdef LDAP_DEBUG
+#define ACLBUF_MAXLEN  8192
 
-static void
-print_access( Access *b )
+static char aclbuf[ACLBUF_MAXLEN];
+
+static char *
+dnaccess2text( slap_dn_access *bdn, char *ptr, int is_realdn )
 {
-       char maskbuf[ACCESSMASK_MAXLEN];
+       *ptr++ = ' ';
 
-       fprintf( stderr, "\tby" );
+       if ( is_realdn ) {
+               ptr = lutil_strcopy( ptr, "real" );
+       }
 
-       if ( !BER_BVISEMPTY( &b->a_dn_pat ) ) {
-               if ( ber_bvccmp( &b->a_dn_pat, '*' ) ||
-                       b->a_dn_style == ACL_STYLE_ANONYMOUS /* strcmp( b->a_dn_pat.bv_val, "anonymous" ) == 0 */ ||
-                       b->a_dn_style == ACL_STYLE_USERS /* strcmp( b->a_dn_pat.bv_val, "users" ) == 0 */ ||
-                       b->a_dn_style == ACL_STYLE_SELF /* strcmp( b->a_dn_pat.bv_val, "self" ) == 0 */ )
-               {
-                       fprintf( stderr, " %s", b->a_dn_pat.bv_val );
+       if ( ber_bvccmp( &bdn->a_pat, '*' ) ||
+               bdn->a_style == ACL_STYLE_ANONYMOUS ||
+               bdn->a_style == ACL_STYLE_USERS ||
+               bdn->a_style == ACL_STYLE_SELF )
+       {
+               if ( is_realdn ) {
+                       assert( ! ber_bvccmp( &bdn->a_pat, '*' ) );
+               }
+                       
+               ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
+               if ( bdn->a_style == ACL_STYLE_SELF && bdn->a_self_level != 0 ) {
+                       int n = sprintf( ptr, ".level{%d}", bdn->a_self_level );
+                       if ( n > 0 ) {
+                               ptr += n;
+                       } /* else ? */
+               }
 
-               } else {
-                       fprintf( stderr, " dn.%s=\"%s\"",
-                               style_strings[b->a_dn_style], b->a_dn_pat.bv_val );
+       } else {
+               ptr = lutil_strcopy( ptr, "dn." );
+               if ( bdn->a_style == ACL_STYLE_BASE )
+                       ptr = lutil_strcopy( ptr, style_base );
+               else 
+                       ptr = lutil_strcopy( ptr, style_strings[bdn->a_style] );
+               if ( bdn->a_style == ACL_STYLE_LEVEL ) {
+                       int n = sprintf( ptr, "{%d}", bdn->a_level );
+                       if ( n > 0 ) {
+                               ptr += n;
+                       } /* else ? */
+               }
+               if ( bdn->a_expand ) {
+                       ptr = lutil_strcopy( ptr, ",expand" );
                }
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, bdn->a_pat.bv_val );
+               *ptr++ = '"';
+       }
+       return ptr;
+}
+
+static char *
+access2text( Access *b, char *ptr )
+{
+       char maskbuf[ACCESSMASK_MAXLEN];
+
+       ptr = lutil_strcopy( ptr, "\tby" );
+
+       if ( !BER_BVISEMPTY( &b->a_dn_pat ) ) {
+               ptr = dnaccess2text( &b->a_dn, ptr, 0 );
+       }
+       if ( b->a_dn_at ) {
+               ptr = lutil_strcopy( ptr, " dnattr=" );
+               ptr = lutil_strcopy( ptr, b->a_dn_at->ad_cname.bv_val );
        }
 
-       if ( b->a_dn_at != NULL ) {
-               fprintf( stderr, " dnattr=%s", b->a_dn_at->ad_cname.bv_val );
+       if ( !BER_BVISEMPTY( &b->a_realdn_pat ) ) {
+               ptr = dnaccess2text( &b->a_realdn, ptr, 1 );
+       }
+       if ( b->a_realdn_at ) {
+               ptr = lutil_strcopy( ptr, " realdnattr=" );
+               ptr = lutil_strcopy( ptr, b->a_realdn_at->ad_cname.bv_val );
        }
 
        if ( !BER_BVISEMPTY( &b->a_group_pat ) ) {
-               fprintf( stderr, " group/%s/%s.%s=\"%s\"",
-                       b->a_group_oc ? b->a_group_oc->soc_cname.bv_val : "groupOfNames",
-                       b->a_group_at ? b->a_group_at->ad_cname.bv_val : "member",
-                       style_strings[b->a_group_style],
-                       b->a_group_pat.bv_val );
+               ptr = lutil_strcopy( ptr, " group/" );
+               ptr = lutil_strcopy( ptr, b->a_group_oc ?
+                       b->a_group_oc->soc_cname.bv_val : SLAPD_GROUP_CLASS );
+               *ptr++ = '/';
+               ptr = lutil_strcopy( ptr, b->a_group_at ?
+                       b->a_group_at->ad_cname.bv_val : SLAPD_GROUP_ATTR );
+               *ptr++ = '.';
+               ptr = lutil_strcopy( ptr, style_strings[b->a_group_style] );
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, b->a_group_pat.bv_val );
+               *ptr++ = '"';
        }
 
        if ( !BER_BVISEMPTY( &b->a_peername_pat ) ) {
-               fprintf( stderr, " peername=\"%s\"", b->a_peername_pat.bv_val );
+               ptr = lutil_strcopy( ptr, " peername" );
+               *ptr++ = '.';
+               ptr = lutil_strcopy( ptr, style_strings[b->a_peername_style] );
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, b->a_peername_pat.bv_val );
+               *ptr++ = '"';
        }
 
        if ( !BER_BVISEMPTY( &b->a_sockname_pat ) ) {
-               fprintf( stderr, " sockname=\"%s\"", b->a_sockname_pat.bv_val );
+               ptr = lutil_strcopy( ptr, " sockname" );
+               *ptr++ = '.';
+               ptr = lutil_strcopy( ptr, style_strings[b->a_sockname_style] );
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, b->a_sockname_pat.bv_val );
+               *ptr++ = '"';
        }
 
        if ( !BER_BVISEMPTY( &b->a_domain_pat ) ) {
-               fprintf( stderr, " domain=%s", b->a_domain_pat.bv_val );
+               ptr = lutil_strcopy( ptr, " domain" );
+               *ptr++ = '.';
+               ptr = lutil_strcopy( ptr, style_strings[b->a_domain_style] );
+               if ( b->a_domain_expand ) {
+                       ptr = lutil_strcopy( ptr, ",expand" );
+               }
+               *ptr++ = '=';
+               ptr = lutil_strcopy( ptr, b->a_domain_pat.bv_val );
        }
 
        if ( !BER_BVISEMPTY( &b->a_sockurl_pat ) ) {
-               fprintf( stderr, " sockurl=\"%s\"", b->a_sockurl_pat.bv_val );
+               ptr = lutil_strcopy( ptr, " sockurl" );
+               *ptr++ = '.';
+               ptr = lutil_strcopy( ptr, style_strings[b->a_sockurl_style] );
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, b->a_sockurl_pat.bv_val );
+               *ptr++ = '"';
        }
 
        if ( !BER_BVISEMPTY( &b->a_set_pat ) ) {
-               fprintf( stderr, " set=\"%s\"", b->a_set_pat.bv_val );
+               ptr = lutil_strcopy( ptr, " set" );
+               *ptr++ = '.';
+               ptr = lutil_strcopy( ptr, style_strings[b->a_set_style] );
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, b->a_set_pat.bv_val );
+               *ptr++ = '"';
        }
 
 #ifdef SLAP_DYNACL
@@ -2138,68 +2689,84 @@ print_access( Access *b )
                slap_dynacl_t   *da;
 
                for ( da = b->a_dynacl; da; da = da->da_next ) {
-                       if ( da->da_print ) {
-                               (void)( *da->da_print )( da->da_private );
+                       if ( da->da_unparse ) {
+                               struct berval bv = BER_BVNULL;
+                               (void)( *da->da_unparse )( da->da_private, &bv );
+                               assert( !BER_BVISNULL( &bv ) );
+                               ptr = lutil_strcopy( ptr, bv.bv_val );
+                               ch_free( bv.bv_val );
                        }
                }
        }
-#else /* ! SLAP_DYNACL */
-#ifdef SLAPD_ACI_ENABLED
-       if ( b->a_aci_at != NULL ) {
-               fprintf( stderr, " aci=%s", b->a_aci_at->ad_cname.bv_val );
-       }
-#endif
 #endif /* SLAP_DYNACL */
 
        /* Security Strength Factors */
        if ( b->a_authz.sai_ssf ) {
-               fprintf( stderr, " ssf=%u",
+               ptr += sprintf( ptr, " ssf=%u", 
                        b->a_authz.sai_ssf );
        }
        if ( b->a_authz.sai_transport_ssf ) {
-               fprintf( stderr, " transport_ssf=%u",
+               ptr += sprintf( ptr, " transport_ssf=%u",
                        b->a_authz.sai_transport_ssf );
        }
        if ( b->a_authz.sai_tls_ssf ) {
-               fprintf( stderr, " tls_ssf=%u",
+               ptr += sprintf( ptr, " tls_ssf=%u",
                        b->a_authz.sai_tls_ssf );
        }
        if ( b->a_authz.sai_sasl_ssf ) {
-               fprintf( stderr, " sasl_ssf=%u",
+               ptr += sprintf( ptr, " sasl_ssf=%u",
                        b->a_authz.sai_sasl_ssf );
        }
 
-       fprintf( stderr, " %s%s",
-               b->a_dn_self ? "self" : "",
-               accessmask2str( b->a_access_mask, maskbuf ) );
+       *ptr++ = ' ';
+       if ( b->a_dn_self ) {
+               ptr = lutil_strcopy( ptr, "self" );
+       } else if ( b->a_realdn_self ) {
+               ptr = lutil_strcopy( ptr, "realself" );
+       }
+       ptr = lutil_strcopy( ptr, accessmask2str( b->a_access_mask, maskbuf, 0 ));
+       if ( !maskbuf[0] ) ptr--;
 
        if( b->a_type == ACL_BREAK ) {
-               fprintf( stderr, " break" );
+               ptr = lutil_strcopy( ptr, " break" );
 
        } else if( b->a_type == ACL_CONTINUE ) {
-               fprintf( stderr, " continue" );
+               ptr = lutil_strcopy( ptr, " continue" );
 
        } else if( b->a_type != ACL_STOP ) {
-               fprintf( stderr, " unknown-control" );
+               ptr = lutil_strcopy( ptr, " unknown-control" );
+       } else {
+               if ( !maskbuf[0] ) ptr = lutil_strcopy( ptr, " stop" );
        }
+       *ptr++ = '\n';
 
-       fprintf( stderr, "\n" );
+       return ptr;
 }
 
-
-static void
-print_acl( Backend *be, AccessControl *a )
+void
+acl_unparse( AccessControl *a, struct berval *bv )
 {
-       int             to = 0;
        Access  *b;
+       char    *ptr;
+       int     to = 0;
 
-       fprintf( stderr, "%s ACL: access to",
-               be == NULL ? "Global" : "Backend" );
+       bv->bv_val = aclbuf;
+       bv->bv_len = 0;
 
-       if ( !BER_BVISEMPTY( &a->acl_dn_pat ) ) {
+       ptr = bv->bv_val;
+
+       ptr = lutil_strcopy( ptr, "to" );
+       if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
                to++;
-               fprintf( stderr, " dn.%s=\"%s\"\n",
-                       style_strings[a->acl_dn_style], a->acl_dn_pat.bv_val );
+               ptr = lutil_strcopy( ptr, " dn." );
+               if ( a->acl_dn_style == ACL_STYLE_BASE )
+                       ptr = lutil_strcopy( ptr, style_base );
+               else
+                       ptr = lutil_strcopy( ptr, style_strings[a->acl_dn_style] );
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, a->acl_dn_pat.bv_val );
+               ptr = lutil_strcopy( ptr, "\"\n" );
        }
 
        if ( a->acl_filter != NULL ) {
@@ -2207,7 +2774,10 @@ print_acl( Backend *be, AccessControl *a )
 
                to++;
                filter2bv( a->acl_filter, &bv );
-               fprintf( stderr, " filter=%s\n", bv.bv_val );
+               ptr = lutil_strcopy( ptr, " filter=\"" );
+               ptr = lutil_strcopy( ptr, bv.bv_val );
+               *ptr++ = '"';
+               *ptr++ = '\n';
                ch_free( bv.bv_val );
        }
 
@@ -2216,31 +2786,56 @@ print_acl( Backend *be, AccessControl *a )
                AttributeName *an;
                to++;
 
-               fprintf( stderr, " attrs=" );
+               ptr = lutil_strcopy( ptr, " attrs=" );
                for ( an = a->acl_attrs; an && !BER_BVISNULL( &an->an_name ); an++ ) {
-                       if ( ! first ) fprintf( stderr, "," );
+                       if ( ! first ) *ptr++ = ',';
                        if (an->an_oc) {
-                               fputc( an->an_oc_exclude ? '!' : '@', stderr);
+                               *ptr++ = an->an_oc_exclude ? '!' : '@';
+                               ptr = lutil_strcopy( ptr, an->an_oc->soc_cname.bv_val );
+
+                       } else {
+                               ptr = lutil_strcopy( ptr, an->an_name.bv_val );
                        }
-                       fputs( an->an_name.bv_val, stderr );
                        first = 0;
                }
-               fprintf(  stderr, "\n" );
+               *ptr++ = '\n';
        }
 
        if ( !BER_BVISEMPTY( &a->acl_attrval ) ) {
                to++;
-               fprintf( stderr, " val.%s=\"%s\"\n",
-                       style_strings[a->acl_attrval_style], a->acl_attrval.bv_val );
-
+               ptr = lutil_strcopy( ptr, " val." );
+               if ( a->acl_attrval_style == ACL_STYLE_BASE &&
+                       a->acl_attrs[0].an_desc->ad_type->sat_syntax ==
+                               slap_schema.si_syn_distinguishedName )
+                       ptr = lutil_strcopy( ptr, style_base );
+               else
+                       ptr = lutil_strcopy( ptr, style_strings[a->acl_attrval_style] );
+               *ptr++ = '=';
+               *ptr++ = '"';
+               ptr = lutil_strcopy( ptr, a->acl_attrval.bv_val );
+               *ptr++ = '"';
+               *ptr++ = '\n';
        }
 
-       if( !to ) fprintf( stderr, " *\n" );
+       if( !to ) {
+               ptr = lutil_strcopy( ptr, " *\n" );
+       }
 
        for ( b = a->acl_access; b != NULL; b = b->a_next ) {
-               print_access( b );
+               ptr = access2text( b, ptr );
        }
+       *ptr = '\0';
+       bv->bv_len = ptr - bv->bv_val;
+}
+
+#ifdef LDAP_DEBUG
+static void
+print_acl( Backend *be, AccessControl *a )
+{
+       struct berval bv;
 
-       fprintf( stderr, "\n" );
+       acl_unparse( a, &bv );
+       fprintf( stderr, "%s ACL: access %s\n",
+               be == NULL ? "Global" : "Backend", bv.bv_val );
 }
 #endif /* LDAP_DEBUG */