]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/acl.c
import ITS#3140 fix from HEAD
[openldap] / servers / slapd / acl.c
index 321522d3ea0e8d787fcc3ee5518c299b4d2706f8..9666b6d231be522cd99119a0135f517a8014cb08 100644 (file)
@@ -1,8 +1,27 @@
 /* acl.c - routines to parse and check acl's */
 /* $OpenLDAP$ */
-/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2004 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
  */
 
 #include "portable.h"
 
 #include "slap.h"
 #include "sets.h"
+#include "lber_pvt.h"
+
+#ifdef LDAP_SLAPI
+#include "slapi/slapi.h"
+#endif /* LDAPI_SLAPI */
+
+#define ACL_BUF_SIZE   1024    /* use most appropriate size */
+
+/*
+ * speed up compares
+ */
+static struct berval 
+       aci_bv_entry            = BER_BVC("entry"),
+       aci_bv_children         = BER_BVC("children"),
+       aci_bv_br_entry         = BER_BVC("[entry]"),
+       aci_bv_br_all           = BER_BVC("[all]"),
+       aci_bv_access_id        = BER_BVC("access-id"),
+       aci_bv_anonymous        = BER_BVC("anonymous"),
+       aci_bv_public           = BER_BVC("public"),
+       aci_bv_users            = BER_BVC("users"),
+       aci_bv_self             = BER_BVC("self"),
+       aci_bv_dnattr           = BER_BVC("dnattr"),
+       aci_bv_group            = BER_BVC("group"),
+       aci_bv_role             = BER_BVC("role"),
+       aci_bv_set              = BER_BVC("set"),
+       aci_bv_set_ref          = BER_BVC("set-ref"),
+       aci_bv_grant            = BER_BVC("grant"),
+       aci_bv_deny             = BER_BVC("deny"),
+
+       aci_bv_ip_eq            = BER_BVC("IP="),
+#ifdef LDAP_PF_LOCAL
+       aci_bv_path_eq          = BER_BVC("PATH="),
+       aci_bv_dirsep           = BER_BVC(LDAP_DIRSEP),
+#endif /* LDAP_PF_LOCAL */
+       
+       aci_bv_group_class      = BER_BVC(SLAPD_GROUP_CLASS),
+       aci_bv_group_attr       = BER_BVC(SLAPD_GROUP_ATTR),
+       aci_bv_role_class       = BER_BVC(SLAPD_ROLE_CLASS),
+       aci_bv_role_attr        = BER_BVC(SLAPD_ROLE_ATTR),
+       aci_bv_set_attr         = BER_BVC(SLAPD_ACI_SET_ATTR);
+
 
 static AccessControl * acl_get(
        AccessControl *ac, int *count,
-       Backend *be, Operation *op,
-       Entry *e,
+       Operation *op, Entry *e,
        AttributeDescription *desc,
-       int nmatches, regmatch_t *matches );
+       struct berval *val,
+       int nmatches, regmatch_t *matches,
+       AccessControlState *state );
 
 static slap_control_t acl_mask(
        AccessControl *ac, slap_mask_t *mask,
-       Backend *be, Connection *conn, Operation *op,
-       Entry *e,
+       Operation *op, Entry *e,
        AttributeDescription *desc,
        struct berval *val,
-       regmatch_t *matches );
+       regmatch_t *matches,
+       int count,
+       AccessControlState *state );
 
 #ifdef SLAPD_ACI_ENABLED
 static int aci_mask(
-       Backend *be,
-    Connection *conn,
-       Operation *op,
-       Entry *e,
+       Operation *op, Entry *e,
        AttributeDescription *desc,
        struct berval *val,
        struct berval *aci,
        regmatch_t *matches,
        slap_access_t *grant,
-       slap_access_t *deny );
+       slap_access_t *deny,
+       struct berval *scope);
 #endif
 
 static int     regex_matches(
-       char *pat, char *str, char *buf, regmatch_t *matches);
+       struct berval *pat, char *str, char *buf, regmatch_t *matches);
 static void    string_expand(
-       char *newbuf, int bufsiz, char *pattern,
+       struct berval *newbuf, struct berval *pattern,
        char *match, regmatch_t *matches);
 
-char **aci_set_gather (void *cookie, char *name, char *attr);
-static int aci_match_set ( struct berval *subj, Backend *be,
-    Entry *e, Connection *conn, Operation *op, int setref );
+typedef        struct AciSetCookie {
+       Operation *op;
+       Entry *e;
+} AciSetCookie;
+
+SLAP_SET_GATHER aci_set_gather;
+static int aci_match_set ( struct berval *subj, Operation *op,
+    Entry *e, int setref );
 
 /*
  * access_allowed - check whether op->o_ndn is allowed the requested access
@@ -72,16 +137,19 @@ static int aci_match_set ( struct berval *subj, Backend *be,
 
 int
 access_allowed(
-    Backend            *be,
-    Connection         *conn,
-    Operation          *op,
-    Entry              *e,
+       Operation               *op,
+       Entry           *e,
        AttributeDescription    *desc,
-    struct berval      *val,
-    slap_access_t      access )
+       struct berval   *val,
+       slap_access_t   access,
+       AccessControlState *state )
 {
+       int                             ret = 1;
        int                             count;
-       AccessControl   *a;
+       AccessControl                   *a = NULL;
+       Backend *be;
+       int     be_null = 0;
+
 #ifdef LDAP_DEBUG
        char accessmaskbuf[ACCESSMASK_MAXLEN];
 #endif
@@ -89,6 +157,8 @@ access_allowed(
        slap_control_t control;
        const char *attr;
        regmatch_t matches[MAXREMATCHES];
+       int        st_same_attr = 0;
+       static AccessControlState state_init = ACL_STATE_INIT;
 
        assert( e != NULL );
        assert( desc != NULL );
@@ -98,10 +168,37 @@ access_allowed(
 
        assert( attr != NULL );
 
+       if( op && op->o_is_auth_check &&
+               ( access == ACL_SEARCH || access == ACL_READ ))
+       {
+               access = ACL_AUTH;
+       }
+
+       if( state ) {
+               if ( state->as_vd_ad==desc) {
+                       if ( state->as_recorded ) {
+                               if( state->as_recorded & ACL_STATE_RECORDED_NV &&
+                                       val == NULL )
+                               {
+                                       return state->as_result;
+                               } else if ( state->as_recorded & ACL_STATE_RECORDED_VD &&
+                                       val != NULL && state->as_vd_acl == NULL )
+                               {
+                                       return state->as_result;
+                               }
+                       }
+                       st_same_attr = 1;
+               } else {
+                       *state = state_init;
+               }
+
+               state->as_vd_ad=desc;
+       }
+
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
-               "access_allowed: conn %d %s access to \"%s\" \"%s\" requested\n",
-               conn ? conn->c_connid : -1, access2str( access ), e->e_dn, attr ));
+       LDAP_LOG( ACL, ENTRY, 
+               "access_allowed: %s access to \"%s\" \"%s\" requested\n",
+               access2str( access ), e->e_dn, attr );
 #else
        Debug( LDAP_DEBUG_ACL,
                "=> access_allowed: %s access to \"%s\" \"%s\" requested\n",
@@ -110,24 +207,39 @@ access_allowed(
 
        if ( op == NULL ) {
                /* no-op call */
-               return 1;
+               goto done;
        }
 
-       if ( be == NULL ) be = &backends[0];
+       be = op->o_bd;
+       if ( be == NULL ) {
+               be = &backends[0];
+               be_null = 1;
+               op->o_bd = be;
+       }
        assert( be != NULL );
 
+#ifdef LDAP_SLAPI
+       if ( op->o_pb != NULL ) {
+               ret = slapi_int_access_allowed( op, e, desc, val, access, state );
+               if ( ret == 0 ) {
+                       /* ACL plugin denied access */
+                       goto done;
+               }
+       }
+#endif /* LDAP_SLAPI */
+
        /* grant database root access */
-       if ( be != NULL && be_isroot( be, &op->o_ndn ) ) {
+       if ( be != NULL && be_isroot( op ) ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_INFO,
-                      "access_allowed: conn %d root access granted\n",
-                      conn->c_connid));
+               LDAP_LOG( ACL, INFO, 
+                       "access_allowed: conn %lu root access granted\n", 
+                       op->o_connid, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ACL,
                    "<= root access granted\n",
                        0, 0, 0 );
 #endif
-               return 1;
+               goto done;
        }
 
        /*
@@ -140,70 +252,91 @@ access_allowed(
                && desc != slap_schema.si_ad_children )
        {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                      "access_allowed: conn %d NoUserMod Operational attribute: %s access granted\n",
-                      conn->c_connid, attr ));
+               LDAP_LOG( ACL, DETAIL1, 
+                       "access_allowed: conn %lu NoUserMod Operational attribute: %s "
+                       "access granted\n", op->o_connid, attr , 0 );
 #else
                Debug( LDAP_DEBUG_ACL, "NoUserMod Operational attribute:"
                        " %s access granted\n",
                        attr, 0, 0 );
 #endif
-               return 1;
+               goto done;
        }
 
        /* use backend default access if no backend acls */
        if( be != NULL && be->be_acl == NULL ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                      "access_allowed: conn %d backend default %s access %s to \"%s\"\n",
-                      conn->c_connid, access2str( access ),
-                      be->be_dfltaccess >= access ? "granted" : "denied", op->o_dn ));
+               LDAP_LOG( ACL, DETAIL1, 
+                       "access_allowed: backend default %s access %s to \"%s\"\n",
+                   access2str( access ),
+                   be->be_dfltaccess >= access ? "granted" : "denied", 
+                       op->o_dn.bv_val ? op->o_dn.bv_val : "(anonymous)" );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "=> access_allowed: backend default %s access %s to \"%s\"\n",
                        access2str( access ),
-                       be->be_dfltaccess >= access ? "granted" : "denied", op->o_dn );
+                       be->be_dfltaccess >= access ? "granted" : "denied",
+                       op->o_dn.bv_val ? op->o_dn.bv_val : "(anonymous)" );
 #endif
-               return be->be_dfltaccess >= access;
+               ret = be->be_dfltaccess >= access;
+               goto done;
 
 #ifdef notdef
        /* be is always non-NULL */
        /* use global default access if no global acls */
        } else if ( be == NULL && global_acl == NULL ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                      "access_allowed: conn %d global default %s access %s to \"%s\"\n",
-                      conn->c_connid, access2str( access ),
-                      global_default_access >= access ? "granted" : "denied", op->o_dn ));
+               LDAP_LOG( ACL, DETAIL1, 
+                       "access_allowed: global default %s access %s to \"%s\"\n",
+                   access2str( access ),
+                   global_default_access >= access ? "granted" : "denied", 
+                       op->o_dn.bv_val );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "=> access_allowed: global default %s access %s to \"%s\"\n",
                        access2str( access ),
-                       global_default_access >= access ? "granted" : "denied", op->o_dn );
+                       global_default_access >= access ? "granted" : "denied", op->o_dn.bv_val );
 #endif
-               return global_default_access >= access;
+               ret = global_default_access >= access;
+               goto done;
 #endif
        }
 
-       ACL_INIT(mask);
-       memset(matches, '\0', sizeof(matches));
-       
+       ret = 0;
        control = ACL_BREAK;
-       a = NULL;
-       count = 0;
 
-       while((a = acl_get( a, &count, be, op, e, desc, MAXREMATCHES, matches )) != NULL)
+       if( st_same_attr ) {
+               assert( state->as_vd_acl != NULL );
+
+               a = state->as_vd_acl;
+               count = state->as_vd_acl_count;
+               if ( !ACL_IS_INVALID( state->as_vd_acl_mask )) {
+                       mask = state->as_vd_acl_mask;
+                       AC_MEMCPY( matches, state->as_vd_acl_matches, sizeof(matches) );
+                       goto vd_access;
+               }
+
+       } else {
+               if ( state ) state->as_vi_acl = NULL;
+               a = NULL;
+               ACL_INIT(mask);
+               count = 0;
+               memset(matches, '\0', sizeof(matches));
+       }
+
+       while((a = acl_get( a, &count, op, e, desc, val,
+               MAXREMATCHES, matches, state )) != NULL)
        {
                int i;
 
                for (i = 0; i < MAXREMATCHES && matches[i].rm_so > 0; i++) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                              "access_allowed: conn %d match[%d]:  %d %d ",
-                              conn->c_connid, i, (int)matches[i].rm_so, (int)matches[i].rm_eo ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                               "access_allowed: match[%d]:  %d %d ",
+                           i, (int)matches[i].rm_so, (int)matches[i].rm_eo );
 #else
                        Debug( LDAP_DEBUG_ACL, "=> match[%d]: %d %d ", i,
-                              (int)matches[i].rm_so, (int)matches[i].rm_eo );
+                           (int)matches[i].rm_so, (int)matches[i].rm_eo );
 #endif
                        if( matches[i].rm_so <= matches[0].rm_eo ) {
                                int n;
@@ -212,14 +345,25 @@ access_allowed(
                                }
                        }
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_ARGS, "\n" ));
+                       LDAP_LOG( ACL, ARGS, "\n" , 0, 0, 0 );
 #else
                        Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 );
 #endif
                }
 
-               control = acl_mask( a, &mask, be, conn, op,
-                       e, desc, val, matches );
+               if (state) {
+                       if (state->as_vi_acl == a && (state->as_recorded & ACL_STATE_RECORDED_NV)) {
+                               Debug( LDAP_DEBUG_ACL, "access_allowed: result from state (%s)\n", attr, 0, 0 );
+                               ret = state->as_result;
+                               goto done;
+                       } else {
+                               Debug( LDAP_DEBUG_ACL, "access_allowed: no res from state (%s)\n", attr, 0, 0);
+                       }
+               }
+
+vd_access:
+               control = acl_mask( a, &mask, op,
+                       e, desc, val, matches, count, state );
 
                if ( control != ACL_BREAK ) {
                        break;
@@ -230,34 +374,33 @@ access_allowed(
 
        if ( ACL_IS_INVALID( mask ) ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                      "access_allowed: conn %d  \"%s\" (%s) invalid!\n",
-                      conn->c_connid, e->e_dn, attr ));
+               LDAP_LOG( ACL, DETAIL1, 
+                       "access_allowed: conn %lu \"%s\" (%s) invalid!\n",
+                   op->o_connid, e->e_dn, attr );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "=> access_allowed: \"%s\" (%s) invalid!\n",
                        e->e_dn, attr, 0 );
 #endif
-               ACL_INIT( mask );
+               ACL_INIT(mask);
 
        } else if ( control == ACL_BREAK ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                      "access_allowed: conn %d  no more rules\n", conn->c_connid ));
+               LDAP_LOG( ACL, DETAIL1, 
+                       "access_allowed: conn %lu        no more rules\n", op->o_connid, 0,0 );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "=> access_allowed: no more rules\n", 0, 0, 0);
 #endif
-               ACL_INIT( mask );
+
+               goto done;
        }
 
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
-                  "access_allowed: conn %d  %s access %s by %s\n",
-                  conn->c_connid,
-                  access2str( access ),
-                  ACL_GRANT( mask, access ) ? "granted" : "denied",
-                  accessmask2str( mask, accessmaskbuf ) ));
+       LDAP_LOG( ACL, ENTRY, 
+               "access_allowed: %s access %s by %s\n", 
+               access2str( access ), ACL_GRANT( mask, access ) ? "granted" : "denied",
+               accessmask2str( mask, accessmaskbuf ) );
 #else
        Debug( LDAP_DEBUG_ACL,
                "=> access_allowed: %s access %s by %s\n",
@@ -265,9 +408,23 @@ access_allowed(
                ACL_GRANT(mask, access) ? "granted" : "denied",
                accessmask2str( mask, accessmaskbuf ) );
 #endif
-       return ACL_GRANT(mask, access);
+
+       ret = ACL_GRANT(mask, access);
+
+done:
+       if( state != NULL ) {
+               /* If not value-dependent, save ACL in case of more attrs */
+               if ( !(state->as_recorded & ACL_STATE_RECORDED_VD) ) {
+                       state->as_vi_acl = a;
+                       state->as_result = ret;
+               }
+               state->as_recorded |= ACL_STATE_RECORDED;
+       }
+       if (be_null) op->o_bd = NULL;
+       return ret;
 }
 
+
 /*
  * acl_get - return the acl applicable to entry e, attribute
  * attr.  the acl returned is suitable for use in subsequent calls to
@@ -278,15 +435,17 @@ static AccessControl *
 acl_get(
        AccessControl *a,
        int                     *count,
-    Backend            *be,
-    Operation  *op,
-    Entry              *e,
+       Operation       *op,
+       Entry           *e,
        AttributeDescription *desc,
-    int                        nmatch,
-    regmatch_t *matches )
+       struct berval   *val,
+       int                     nmatch,
+       regmatch_t      *matches,
+       AccessControlState *state )
 {
        const char *attr;
        int dnlen, patlen;
+       AccessControl *prev;
 
        assert( e != NULL );
        assert( count != NULL );
@@ -297,15 +456,17 @@ acl_get(
        assert( attr != NULL );
 
        if( a == NULL ) {
-               if( be == NULL ) {
+               if( op->o_bd == NULL ) {
                        a = global_acl;
                } else {
-                       a = be->be_acl;
+                       a = op->o_bd->be_acl;
                }
+               prev = NULL;
 
                assert( a != NULL );
 
        } else {
+               prev = a;
                a = a->acl_next;
        }
 
@@ -314,27 +475,27 @@ acl_get(
        for ( ; a != NULL; a = a->acl_next ) {
                (*count) ++;
 
-               if (a->acl_dn_pat.bv_len != 0) {
+               if ( a->acl_dn_pat.bv_len || ( a->acl_dn_style != ACL_STYLE_REGEX )) {
                        if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
 #ifdef NEW_LOGGING
-                               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                          "acl_get: dnpat [%d] %s nsub: %d\n",
-                                          *count, a->acl_dn_pat, (int) a->acl_dn_re.re_nsub ));
+                               LDAP_LOG( ACL, DETAIL1, 
+                                       "acl_get: dnpat [%d] %s nsub: %d\n",
+                                       *count, a->acl_dn_pat.bv_val, 
+                                       (int) a->acl_dn_re.re_nsub );
 #else
                                Debug( LDAP_DEBUG_ACL, "=> dnpat: [%d] %s nsub: %d\n", 
-                                       *count, a->acl_dn_pat, (int) a->acl_dn_re.re_nsub );
+                                       *count, a->acl_dn_pat.bv_val, (int) a->acl_dn_re.re_nsub );
 #endif
                                if (regexec(&a->acl_dn_re, e->e_ndn, nmatch, matches, 0))
                                        continue;
 
                        } else {
 #ifdef NEW_LOGGING
-                               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                          "acl_get: dn [%d] %s\n",
-                                          *count, a->acl_dn_pat ));
+                               LDAP_LOG( ACL, DETAIL1, "acl_get: dn [%d] %s\n",
+                                          *count, a->acl_dn_pat.bv_val, 0 );
 #else
                                Debug( LDAP_DEBUG_ACL, "=> dn: [%d] %s\n", 
-                                       *count, a->acl_dn_pat, 0 );
+                                       *count, a->acl_dn_pat.bv_val, 0 );
 #endif
                                patlen = a->acl_dn_pat.bv_len;
                                if ( dnlen < patlen )
@@ -346,26 +507,29 @@ acl_get(
                                                continue;
 
                                } else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
-                                       int rdnlen = -1;
+                                       int     rdnlen = -1, sep = 0;
 
                                        if ( dnlen <= patlen )
                                                continue;
 
-                                       if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) || DN_ESCAPE( e->e_ndn[dnlen - patlen - 2] ) )
-                                               continue;
+                                       if ( patlen > 0 ) {
+                                               if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
+                                                       continue;
+                                               sep = 1;
+                                       }
 
-                                       rdnlen = dn_rdnlen( NULL, e->e_ndn );
-                                       if ( rdnlen != dnlen - patlen - 1 )
+                                       rdnlen = dn_rdnlen( NULL, &e->e_nname );
+                                       if ( rdnlen != dnlen - patlen - sep )
                                                continue;
 
                                } else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
-                                       if ( dnlen > patlen && ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) || DN_ESCAPE( e->e_ndn[dnlen - patlen - 2] ) ) )
+                                       if ( dnlen > patlen && !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
                                                continue;
 
                                } else if ( a->acl_dn_style == ACL_STYLE_CHILDREN ) {
                                        if ( dnlen <= patlen )
                                                continue;
-                                       if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) || DN_ESCAPE( e->e_ndn[dnlen - patlen - 2] ) )
+                                       if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
                                                continue;
                                }
 
@@ -374,56 +538,146 @@ acl_get(
                        }
 
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_get: [%d] matched\n",
-                                  *count ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                               "acl_get: [%d] matched\n", *count, 0, 0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] matched\n",
                                *count, 0, 0 );
 #endif
                }
 
-               if ( a->acl_filter != NULL ) {
-                       ber_int_t rc = test_filter( NULL, NULL, NULL, e, a->acl_filter );
-                       if ( rc != LDAP_COMPARE_TRUE ) {
+               if ( a->acl_attrs && !ad_inlist( desc, a->acl_attrs ) ) {
+                       matches[0].rm_so = matches[0].rm_eo = -1;
+                       continue;
+               }
+
+               /* Is this ACL only for a specific value? */
+               if ( a->acl_attrval.bv_len ) {
+                       if ( val == NULL ) {
                                continue;
                        }
-               }
 
+                       if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) {
+                               state->as_recorded |= ACL_STATE_RECORDED_VD;
+                               state->as_vd_acl = prev;
+                               state->as_vd_acl_count = *count;
+                               state->as_vd_access = a->acl_access;
+                               state->as_vd_access_count = 1;
+                               ACL_INVALIDATE( state->as_vd_acl_mask );
+                       }
+
+                       if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                          "acl_get: [%d] check attr %s\n",
-                          *count, attr ));
+                               LDAP_LOG( ACL, DETAIL1, 
+                                       "acl_get: valpat %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
 #else
-               Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] check attr %s\n",
-                      *count, attr, 0);
+                               Debug( LDAP_DEBUG_ACL,
+                                       "acl_get: valpat %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
 #endif
-               if ( attr == NULL || a->acl_attrs == NULL ||
-                       ad_inlist( desc, a->acl_attrs ) )
-               {
+                               if (regexec(&a->acl_attrval_re, val->bv_val, 0, NULL, 0))
+                                       continue;
+                       } else {
+                               int match = 0;
+                               const char *text;
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_get:  [%d] acl %s attr: %s\n",
-                                  *count, e->e_dn, attr ));
+                               LDAP_LOG( ACL, DETAIL1, 
+                                       "acl_get: val %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
 #else
-                       Debug( LDAP_DEBUG_ACL,
-                               "<= acl_get: [%d] acl %s attr: %s\n",
-                               *count, e->e_dn, attr );
+                               Debug( LDAP_DEBUG_ACL,
+                                       "acl_get: val %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
 #endif
-                       return a;
+       
+                               if ( a->acl_attrs[0].an_desc->ad_type->sat_syntax != slap_schema.si_syn_distinguishedName ) {
+                                       if (value_match( &match, desc,
+                                               desc->ad_type->sat_equality, 0,
+                                               val, &a->acl_attrval, &text ) != LDAP_SUCCESS ||
+                                                       match )
+                                               continue;
+                                       
+                               } else {
+                                       int             patlen, vdnlen;
+       
+                                       patlen = a->acl_attrval.bv_len;
+                                       vdnlen = val->bv_len;
+       
+                                       if ( vdnlen < patlen )
+                                               continue;
+       
+                                       if ( a->acl_dn_style == ACL_STYLE_BASE ) {
+                                               if ( vdnlen > patlen )
+                                                       continue;
+       
+                                       } else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
+                                               int rdnlen = -1;
+       
+                                               if ( !DN_SEPARATOR( val->bv_val[vdnlen - patlen - 1] ) )
+                                                       continue;
+       
+                                               rdnlen = dn_rdnlen( NULL, val );
+                                               if ( rdnlen != vdnlen - patlen - 1 )
+                                                       continue;
+       
+                                       } else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
+                                               if ( vdnlen > patlen && !DN_SEPARATOR( val->bv_val[vdnlen - patlen - 1] ) )
+                                                       continue;
+       
+                                       } else if ( a->acl_dn_style == ACL_STYLE_CHILDREN ) {
+                                               if ( vdnlen <= patlen )
+                                                       continue;
+       
+                                               if ( !DN_SEPARATOR( val->bv_val[vdnlen - patlen - 1] ) )
+                                                       continue;
+                                       }
+       
+                                       if ( strcmp( a->acl_attrval.bv_val, val->bv_val + vdnlen - patlen ))
+                                               continue;
+                               }
+                       }
                }
-               matches[0].rm_so = matches[0].rm_eo = -1;
+
+               if ( a->acl_filter != NULL ) {
+                       ber_int_t rc = test_filter( NULL, e, a->acl_filter );
+                       if ( rc != LDAP_COMPARE_TRUE ) {
+                               continue;
+                       }
+               }
+
+#ifdef NEW_LOGGING
+               LDAP_LOG( ACL, DETAIL1, 
+                       "acl_get: [%d] attr %s\n", *count, attr ,0 );
+#else
+               Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] attr %s\n",
+                      *count, attr, 0);
+#endif
+               return a;
        }
 
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
-                  "acl_get: done.\n" ));
+       LDAP_LOG( ACL, RESULTS, "acl_get: done.\n", 0, 0, 0 );
 #else
        Debug( LDAP_DEBUG_ACL, "<= acl_get: done.\n", 0, 0, 0 );
 #endif
        return( NULL );
 }
 
+/*
+ * Record value-dependent access control state
+ */
+#define ACL_RECORD_VALUE_STATE do { \
+               if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) { \
+                       state->as_recorded |= ACL_STATE_RECORDED_VD; \
+                       state->as_vd_acl = a; \
+                       AC_MEMCPY( state->as_vd_acl_matches, matches, \
+                               sizeof( state->as_vd_acl_matches )) ; \
+                       state->as_vd_acl_count = count; \
+                       state->as_vd_access = b; \
+                       state->as_vd_access_count = i; \
+               } \
+       } while( 0 )
 
 /*
  * acl_mask - modifies mask based upon the given acl and the
@@ -436,21 +690,21 @@ acl_get(
 
 static slap_control_t
 acl_mask(
-    AccessControl      *a,
+       AccessControl   *a,
        slap_mask_t *mask,
-    Backend            *be,
-    Connection *conn,
-    Operation  *op,
-    Entry              *e,
+       Operation       *op,
+       Entry           *e,
        AttributeDescription *desc,
-    struct berval      *val,
-       regmatch_t      *matches
-)
+       struct berval   *val,
+       regmatch_t      *matches,
+       int     count,
+       AccessControlState *state )
 {
        int             i, odnlen, patlen;
        Access  *b;
 #ifdef LDAP_DEBUG
        char accessmaskbuf[ACCESSMASK_MAXLEN];
+       char accessmaskbuf1[ACCESSMASK_MAXLEN];
 #endif
        const char *attr;
 
@@ -463,15 +717,14 @@ acl_mask(
        assert( attr != NULL );
 
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "acl", LDAP_LEVEL_ENTRY,
-                  "acl_mask: conn %d  access to entry \"%s\", attr \"%s\" requested\n",
-                  conn->c_connid, e->e_dn, attr ));
-
-       LDAP_LOG(( "acl", LDAP_LEVEL_ARGS,
-                  " to %s by \"%s\", (%s) \n",
-                  val ? "value" : "all values",
-                  op->o_ndn ? op->o_ndn : "",
-                  accessmask2str( *mask, accessmaskbuf ) ));
+       LDAP_LOG( ACL, ENTRY, 
+               "acl_mask: conn %lu  access to entry \"%s\", attr \"%s\" requested\n",
+               op->o_connid, e->e_dn, attr );
+
+       LDAP_LOG( ACL, ARGS, 
+               " to %s by \"%s\", (%s) \n", val ? "value" : "all values",
+               op->o_ndn.bv_val ? op->o_ndn.bv_val : "",
+               accessmask2str( *mask, accessmaskbuf ) );
 #else
        Debug( LDAP_DEBUG_ACL,
                "=> acl_mask: access to entry \"%s\", attr \"%s\" requested\n",
@@ -484,7 +737,19 @@ acl_mask(
                accessmask2str( *mask, accessmaskbuf ) );
 #endif
 
-       for ( i = 1, b = a->acl_access; b != NULL; b = b->a_next, i++ ) {
+
+       if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD )
+               && state->as_vd_acl == a )
+       {
+               b = state->as_vd_access;
+               i = state->as_vd_access_count;
+
+       } else {
+               b = a->acl_access;
+               i = 1;
+       }
+
+       for ( ; b != NULL; b = b->a_next, i++ ) {
                slap_mask_t oldmask, modmask;
 
                ACL_INVALIDATE( modmask );
@@ -492,9 +757,9 @@ acl_mask(
                /* AND <who> clauses */
                if ( b->a_dn_pat.bv_len != 0 ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_dn_pat: %s\n",
-                                  conn->c_connid, b->a_dn_pat.bv_val ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                               "acl_mask: conn %lu  check a_dn_pat: %s\n",
+                               op->o_connid, b->a_dn_pat.bv_val ,0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "<= check a_dn_pat: %s\n",
                                b->a_dn_pat.bv_val, 0, 0);
@@ -504,32 +769,28 @@ acl_mask(
                         * user is bound as somebody in the same namespace as
                         * the entry, OR the given dn matches the dn pattern
                         */
-                       if ( b->a_dn_pat.bv_len == sizeof("anonymous") -1 &&
-                           strcmp( b->a_dn_pat.bv_val, "anonymous" ) == 0 ) {
-                               if (op->o_ndn.bv_len != 0 ) {
+                       if ( bvmatch( &b->a_dn_pat, &aci_bv_anonymous ) ) {
+                               if ( op->o_ndn.bv_len != 0 ) {
                                        continue;
                                }
 
-                       } else if ( b->a_dn_pat.bv_len == sizeof("users") - 1 &&
-                           strcmp( b->a_dn_pat.bv_val, "users" ) == 0 ) {
-                               if (op->o_ndn.bv_len == 0 ) {
+                       } else if ( bvmatch( &b->a_dn_pat, &aci_bv_users ) ) {
+                               if ( op->o_ndn.bv_len == 0 ) {
                                        continue;
                                }
 
-                       } else if ( b->a_dn_pat.bv_len == sizeof("self") - 1 &&
-                           strcmp( b->a_dn_pat.bv_val, "self" ) == 0 ) {
-                               if( op->o_ndn.bv_len == 0 ) {
+                       } else if ( bvmatch( &b->a_dn_pat, &aci_bv_self ) ) {
+                               if ( op->o_ndn.bv_len == 0 ) {
                                        continue;
                                }
                                
-                               if ( e->e_dn == NULL || strcmp( e->e_ndn, op->o_ndn.bv_val ) != 0 ) {
+                               if ( e->e_dn == NULL || !dn_match( &e->e_nname, &op->o_ndn ) ) {
                                        continue;
                                }
 
                        } else if ( b->a_dn_style == ACL_STYLE_REGEX ) {
-                               if ( b->a_dn_pat.bv_len != 1 || 
-                                   strcmp( b->a_dn_pat.bv_val, "*" ) != 0 ) {
-                                       int ret = regex_matches( b->a_dn_pat.bv_val,
+                               if ( !ber_bvccmp( &b->a_dn_pat, '*' ) ) {
+                                       int ret = regex_matches( &b->a_dn_pat,
                                                op->o_ndn.bv_val, e->e_ndn, matches );
 
                                        if( ret == 0 ) {
@@ -538,143 +799,333 @@ acl_mask(
                                }
 
                        } else {
+                               struct berval pat;
+                               int got_match = 0;
+
                                if ( e->e_dn == NULL )
                                        continue;
 
-                               patlen = b->a_dn_pat.bv_len;
+                               if ( b->a_dn_expand ) {
+                                       struct berval bv;
+                                       char buf[ACL_BUF_SIZE];
+
+                                       bv.bv_len = sizeof( buf ) - 1;
+                                       bv.bv_val = buf;
+
+                                       string_expand(&bv, &b->a_dn_pat, 
+                                                       e->e_ndn, matches);
+                                       if ( dnNormalize(0, NULL, NULL, &bv, &pat, op->o_tmpmemctx ) != LDAP_SUCCESS ) {
+                                               /* did not expand to a valid dn */
+                                               continue;
+                                       }
+                               } else {
+                                       pat = b->a_dn_pat;
+                               }
+
+                               patlen = pat.bv_len;
                                odnlen = op->o_ndn.bv_len;
-                               if ( odnlen < patlen )
-                                       continue;
+                               if ( odnlen < patlen ) {
+                                       goto dn_match_cleanup;
+
+                               }
 
                                if ( b->a_dn_style == ACL_STYLE_BASE ) {
                                        /* base dn -- entire object DN must match */
-                                       if ( odnlen != patlen )
-                                               continue;
+                                       if ( odnlen != patlen ) {
+                                               goto dn_match_cleanup;
+                                       }
 
                                } else if ( b->a_dn_style == ACL_STYLE_ONE ) {
                                        int rdnlen = -1;
 
-                                       if ( odnlen <= patlen )
-                                               continue;
+                                       if ( odnlen <= patlen ) {
+                                               goto dn_match_cleanup;
+                                       }
 
-                                       if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) || DN_ESCAPE( op->o_ndn.bv_val[odnlen - patlen - 2] ) )
-                                               continue;
+                                       if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
+                                               goto dn_match_cleanup;
+                                       }
 
-                                       rdnlen = dn_rdnlen( NULL, op->o_ndn.bv_val );
-                                       if ( rdnlen != odnlen - patlen - 1 )
-                                               continue;
+                                       rdnlen = dn_rdnlen( NULL, &op->o_ndn );
+                                       if ( rdnlen != odnlen - patlen - 1 ) {
+                                               goto dn_match_cleanup;
+                                       }
 
                                } else if ( b->a_dn_style == ACL_STYLE_SUBTREE ) {
-                                       if ( odnlen > patlen && ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) || DN_ESCAPE( op->o_ndn.bv_val[odnlen - patlen - 2] ) ) )
-                                               continue;
+                                       if ( odnlen > patlen && !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
+                                               goto dn_match_cleanup;
+                                       }
 
                                } else if ( b->a_dn_style == ACL_STYLE_CHILDREN ) {
-                                       if ( odnlen <= patlen )
-                                               continue;
-                                       if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) || DN_ESCAPE( op->o_ndn.bv_val[odnlen - patlen - 2] ) )
-                                               continue;
+                                       if ( odnlen <= patlen ) {
+                                               goto dn_match_cleanup;
+                                       }
+
+                                       if ( !DN_SEPARATOR( op->o_ndn.bv_val[odnlen - patlen - 1] ) ) {
+                                               goto dn_match_cleanup;
+                                       }
                                }
 
-                               if ( strcmp( b->a_dn_pat.bv_val, op->o_ndn.bv_val + odnlen - patlen ) != 0 )
-                                       continue;
+                               got_match = !strcmp( pat.bv_val, op->o_ndn.bv_val + odnlen - patlen );
 
+dn_match_cleanup:;
+                               if ( pat.bv_val != b->a_dn_pat.bv_val ) {
+                                       free( pat.bv_val );
+                               }
+
+                               if ( !got_match ) {
+                                       continue;
+                               }
                        }
                }
 
-               if ( b->a_sockurl_pat != NULL ) {
+               if ( b->a_sockurl_pat.bv_len ) {
+                       if ( ! op->o_conn->c_listener ) {
+                               continue;
+                       }
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_sockurl_pat: %s\n",
-                                  conn->c_connid, b->a_sockurl_pat ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                                  "acl_mask: conn %lu  check a_sockurl_pat: %s\n",
+                                  op->o_connid, b->a_sockurl_pat.bv_val , 0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "<= check a_sockurl_pat: %s\n",
-                               b->a_sockurl_pat, 0, 0 );
+                               b->a_sockurl_pat.bv_val, 0, 0 );
 #endif
 
-                       if ( strcmp( b->a_sockurl_pat, "*" ) != 0) {
+                       if ( !ber_bvccmp( &b->a_sockurl_pat, '*' ) ) {
                                if ( b->a_sockurl_style == ACL_STYLE_REGEX) {
-                                       if (!regex_matches( b->a_sockurl_pat, conn->c_listener_url,
+                                       if (!regex_matches( &b->a_sockurl_pat, op->o_conn->c_listener_url.bv_val,
                                                        e->e_ndn, matches ) ) 
                                        {
                                                continue;
                                        }
+
+                               } else if ( b->a_sockurl_style == ACL_STYLE_EXPAND ) {
+                                       struct berval   bv;
+                                       char buf[ACL_BUF_SIZE];
+
+                                       bv.bv_len = sizeof( buf ) - 1;
+                                       bv.bv_val = buf;
+                                       string_expand( &bv, &b->a_sockurl_pat, e->e_ndn, matches );
+
+                                       if ( ber_bvstrcasecmp( &bv, &op->o_conn->c_listener_url ) != 0 ) {
+                                               continue;
+                                       }
+
                                } else {
-                                       if ( strcasecmp( b->a_sockurl_pat, conn->c_listener_url ) == 0 )
+                                       if ( ber_bvstrcasecmp( &b->a_sockurl_pat, &op->o_conn->c_listener_url ) != 0 )
                                                continue;
                                }
                        }
                }
 
-               if ( b->a_domain_pat != NULL ) {
+               if ( b->a_domain_pat.bv_len ) {
+                       if ( !op->o_conn->c_peer_domain.bv_val ) {
+                               continue;
+                       }
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_domain_pat: %s\n",
-                                  conn->c_connid, b->a_domain_pat ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                                  "acl_mask: conn %lu  check a_domain_pat: %s\n",
+                                  op->o_connid, b->a_domain_pat.bv_val , 0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "<= check a_domain_pat: %s\n",
-                               b->a_domain_pat, 0, 0 );
+                               b->a_domain_pat.bv_val, 0, 0 );
 #endif
-                       if ( strcmp( b->a_domain_pat, "*" ) != 0) {
+                       if ( !ber_bvccmp( &b->a_domain_pat, '*' ) ) {
                                if ( b->a_domain_style == ACL_STYLE_REGEX) {
-                                       if (!regex_matches( b->a_domain_pat, conn->c_peer_domain,
+                                       if (!regex_matches( &b->a_domain_pat, op->o_conn->c_peer_domain.bv_val,
                                                        e->e_ndn, matches ) ) 
                                        {
                                                continue;
                                        }
                                } else {
-                                       if ( strcasecmp( b->a_domain_pat, conn->c_peer_domain ) == 0 )
+                                       char buf[ACL_BUF_SIZE];
+
+                                       struct berval   cmp = op->o_conn->c_peer_domain;
+                                       struct berval   pat = b->a_domain_pat;
+
+                                       if ( b->a_domain_expand ) {
+                                               struct berval bv;
+
+                                               bv.bv_len = sizeof(buf) - 1;
+                                               bv.bv_val = buf;
+
+                                               string_expand(&bv, &b->a_domain_pat, e->e_ndn, matches);
+                                               pat = bv;
+                                       }
+
+                                       if ( b->a_domain_style == ACL_STYLE_SUBTREE ) {
+                                               int offset = cmp.bv_len - pat.bv_len;
+                                               if ( offset < 0 ) {
+                                                       continue;
+                                               }
+
+                                               if ( offset == 1 || ( offset > 1 && cmp.bv_val[ offset - 1 ] != '.' ) ) {
+                                                       continue;
+                                               }
+
+                                               /* trim the domain */
+                                               cmp.bv_val = &cmp.bv_val[ offset ];
+                                               cmp.bv_len -= offset;
+                                       }
+                                       
+                                       if ( ber_bvstrcasecmp( &pat, &cmp ) != 0 ) {
                                                continue;
+                                       }
                                }
                        }
                }
 
-               if ( b->a_peername_pat != NULL ) {
+               if ( b->a_peername_pat.bv_len ) {
+                       if ( !op->o_conn->c_peer_name.bv_val ) {
+                               continue;
+                       }
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_perrname_path: %s\n",
-                                  conn->c_connid, b->a_peername_pat ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                                  "acl_mask: conn %lu  check a_peername_path: %s\n",
+                                  op->o_connid, b->a_peername_pat.bv_val , 0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "<= check a_peername_path: %s\n",
-                               b->a_peername_pat, 0, 0 );
+                               b->a_peername_pat.bv_val, 0, 0 );
 #endif
-                       if ( strcmp( b->a_peername_pat, "*" ) != 0) {
-                               if ( b->a_peername_style == ACL_STYLE_REGEX) {
-                                       if (!regex_matches( b->a_peername_pat, conn->c_peer_name,
+                       if ( !ber_bvccmp( &b->a_peername_pat, '*' ) ) {
+                               if ( b->a_peername_style == ACL_STYLE_REGEX ) {
+                                       if (!regex_matches( &b->a_peername_pat, op->o_conn->c_peer_name.bv_val,
                                                        e->e_ndn, matches ) ) 
                                        {
                                                continue;
                                        }
+
                                } else {
-                                       if ( strcasecmp( b->a_peername_pat, conn->c_peer_name ) == 0 )
-                                               continue;
+                                       /* try exact match */
+                                       if ( b->a_peername_style == ACL_STYLE_BASE ) {
+                                               if ( ber_bvstrcasecmp( &b->a_peername_pat, &op->o_conn->c_peer_name ) != 0 ) {
+                                                       continue;
+                                               }
+
+                                       } else if ( b->a_peername_style == ACL_STYLE_EXPAND ) {
+                                               struct berval   bv;
+                                               char buf[ACL_BUF_SIZE];
+
+                                               bv.bv_len = sizeof( buf ) - 1;
+                                               bv.bv_val = buf;
+                                               string_expand( &bv, &b->a_peername_pat, e->e_ndn, matches );
+
+                                               if ( ber_bvstrcasecmp( &bv, &op->o_conn->c_peer_name ) != 0 ) {
+                                                       continue;
+                                               }
+
+                                       /* extract IP and try exact match */
+                                       } else if ( b->a_peername_style == ACL_STYLE_IP ) {
+                                               char            *port;
+                                               char            buf[] = "255.255.255.255";
+                                               struct berval   ip;
+                                               unsigned long   addr;
+                                               int             port_number = -1;
+                                               
+                                               if ( strncasecmp( op->o_conn->c_peer_name.bv_val, 
+                                                                       aci_bv_ip_eq.bv_val, aci_bv_ip_eq.bv_len ) != 0 ) 
+                                                       continue;
+
+                                               ip.bv_val = op->o_conn->c_peer_name.bv_val + aci_bv_ip_eq.bv_len;
+                                               ip.bv_len = op->o_conn->c_peer_name.bv_len - aci_bv_ip_eq.bv_len;
+
+                                               port = strrchr( ip.bv_val, ':' );
+                                               if ( port ) {
+                                                       char    *next;
+                                                       
+                                                       ip.bv_len = port - ip.bv_val;
+                                                       ++port;
+                                                       port_number = strtol( port, &next, 10 );
+                                                       if ( next[0] != '\0' )
+                                                               continue;
+                                               }
+                                               
+                                               /* the port check can be anticipated here */
+                                               if ( b->a_peername_port != -1 && port_number != b->a_peername_port )
+                                                       continue;
+                                               
+                                               /* address longer than expected? */
+                                               if ( ip.bv_len >= sizeof(buf) )
+                                                       continue;
+
+                                               AC_MEMCPY( buf, ip.bv_val, ip.bv_len );
+                                               buf[ ip.bv_len ] = '\0';
+
+                                               addr = inet_addr( buf );
+
+                                               /* unable to convert? */
+                                               if ( addr == (unsigned long)(-1) )
+                                                       continue;
+
+                                               if ( (addr & b->a_peername_mask) != b->a_peername_addr )
+                                                       continue;
+
+#ifdef LDAP_PF_LOCAL
+                                       /* extract path and try exact match */
+                                       } else if ( b->a_peername_style == ACL_STYLE_PATH ) {
+                                               struct berval path;
+                                               
+                                               if ( strncmp( op->o_conn->c_peer_name.bv_val,
+                                                                       aci_bv_path_eq.bv_val, aci_bv_path_eq.bv_len ) != 0 )
+                                                       continue;
+
+                                               path.bv_val = op->o_conn->c_peer_name.bv_val + aci_bv_path_eq.bv_len;
+                                               path.bv_len = op->o_conn->c_peer_name.bv_len - aci_bv_path_eq.bv_len;
+
+                                               if ( ber_bvcmp( &b->a_peername_pat, &path ) != 0 )
+                                                       continue;
+
+#endif /* LDAP_PF_LOCAL */
+
+                                       /* exact match (very unlikely...) */
+                                       } else if ( ber_bvcmp( &op->o_conn->c_peer_name, &b->a_peername_pat ) != 0 ) {
+                                                       continue;
+                                       }
                                }
                        }
                }
 
-               if ( b->a_sockname_pat != NULL ) {
+               if ( b->a_sockname_pat.bv_len ) {
+                       if ( !op->o_conn->c_sock_name.bv_val ) {
+                               continue;
+                       }
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_sockname_path: %s\n",
-                                  conn->c_connid, b->a_sockname_pat ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                                  "acl_mask: conn %lu  check a_sockname_path: %s\n",
+                                  op->o_connid, b->a_sockname_pat.bv_val , 0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "<= check a_sockname_path: %s\n",
-                               b->a_sockname_pat, 0, 0 );
+                               b->a_sockname_pat.bv_val, 0, 0 );
 #endif
-                       if ( strcmp( b->a_sockname_pat, "*" ) != 0) {
+                       if ( !ber_bvccmp( &b->a_sockname_pat, '*' ) ) {
                                if ( b->a_sockname_style == ACL_STYLE_REGEX) {
-                                       if (!regex_matches( b->a_sockname_pat, conn->c_sock_name,
+                                       if (!regex_matches( &b->a_sockname_pat, op->o_conn->c_sock_name.bv_val,
                                                        e->e_ndn, matches ) ) 
                                        {
                                                continue;
                                        }
+
+                               } else if ( b->a_sockname_style == ACL_STYLE_EXPAND ) {
+                                       struct berval   bv;
+                                       char buf[ACL_BUF_SIZE];
+
+                                       bv.bv_len = sizeof( buf ) - 1;
+                                       bv.bv_val = buf;
+                                       string_expand( &bv, &b->a_sockname_pat, e->e_ndn, matches );
+
+                                       if ( ber_bvstrcasecmp( &bv, &op->o_conn->c_sock_name ) != 0 ) {
+                                               continue;
+                                       }
+
                                } else {
-                                       if ( strcasecmp( b->a_sockname_pat, conn->c_sock_name ) == 0 )
+                                       if ( ber_bvstrcasecmp( &b->a_sockname_pat, &op->o_conn->c_sock_name ) != 0 )
                                                continue;
                                }
                        }
                }
 
-               if ( b->a_dn_at != NULL && op->o_ndn.bv_len != 0 ) {
+               if ( b->a_dn_at != NULL ) {
                        Attribute       *at;
                        struct berval   bv;
                        int rc, match = 0;
@@ -683,10 +1134,14 @@ acl_mask(
 
                        assert( attr != NULL );
 
+                       if ( op->o_ndn.bv_len == 0 ) {
+                               continue;
+                       }
+
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_dn_pat: %s\n",
-                                  conn->c_connid, attr ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                                  "acl_mask: conn %lu  check a_dn_pat: %s\n",
+                                  op->o_connid, attr , 0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "<= check a_dn_at: %s\n",
                                attr, 0, 0);
@@ -698,7 +1153,12 @@ acl_mask(
                                at != NULL;
                                at = attrs_find( at->a_next, b->a_dn_at ) )
                        {
-                               if( value_find( b->a_dn_at, at->a_vals, &bv ) == 0 ) {
+                               if( value_find_ex( b->a_dn_at,
+                                       SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
+                                               SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
+                                       at->a_nvals,
+                                       &bv, op->o_tmpmemctx ) == 0 )
+                               {
                                        /* found it */
                                        match = 1;
                                        break;
@@ -711,8 +1171,8 @@ acl_mask(
                                 */
                                if ( b->a_dn_self ) {
                                        /* check if the target is an attribute. */
-                                       if ( val == NULL )
-                                               continue;
+                                       if ( val == NULL ) continue;
+
                                        /* target is attribute, check if the attribute value
                                         * is the op dn.
                                         */
@@ -727,11 +1187,15 @@ acl_mask(
                                /* no dnattr match, check if this is a self clause */
                                if ( ! b->a_dn_self )
                                        continue;
+
+                               ACL_RECORD_VALUE_STATE;
+                               
                                /* this is a self clause, check if the target is an
                                 * attribute.
                                 */
                                if ( val == NULL )
                                        continue;
+
                                /* target is attribute, check if the attribute value
                                 * is the op dn.
                                 */
@@ -745,43 +1209,67 @@ acl_mask(
                        }
                }
 
-               if ( b->a_group_pat != NULL && op->o_ndn.bv_len != 0 ) {
-                       char buf[1024];
+               if ( b->a_group_pat.bv_len ) {
+                       struct berval bv;
+                       struct berval ndn = BER_BVNULL;
+                       int rc;
+
+                       if ( op->o_ndn.bv_len == 0 ) {
+                               continue;
+                       }
 
                        /* b->a_group is an unexpanded entry name, expanded it should be an 
                         * entry with objectclass group* and we test to see if odn is one of
                         * the values in the attribute group
                         */
                        /* see if asker is listed in dnattr */
-                       if ( b->a_group_style == ACL_STYLE_REGEX ) {
-                               string_expand(buf, sizeof(buf), b->a_group_pat, e->e_ndn, matches);
-                               if ( dn_normalize(buf) == NULL ) {
+                       if ( b->a_group_style == ACL_STYLE_EXPAND ) {
+                               char buf[ACL_BUF_SIZE];
+                               bv.bv_len = sizeof(buf) - 1;
+                               bv.bv_val = buf; 
+
+                               string_expand( &bv, &b->a_group_pat, e->e_ndn, matches );
+                               if ( dnNormalize( 0, NULL, NULL, &bv, &ndn, op->o_tmpmemctx ) != LDAP_SUCCESS ) {
                                        /* did not expand to a valid dn */
                                        continue;
                                }
+
+                               bv = ndn;
+
                        } else {
-                               strncpy( buf, b->a_group_pat, sizeof(buf) - 1 );
-                               buf[sizeof(buf) - 1] = 0;
+                               bv = b->a_group_pat;
                        }
 
-                       if (backend_group(be, conn, op, e, buf, &op->o_ndn,
-                               b->a_group_oc, b->a_group_at) != 0)
-                       {
+                       rc = backend_group( op, e, &bv, &op->o_ndn,
+                               b->a_group_oc, b->a_group_at );
+
+                       if ( ndn.bv_val ) free( ndn.bv_val );
+
+                       if ( rc != 0 ) {
                                continue;
                        }
                }
 
                if ( b->a_set_pat.bv_len != 0 ) {
-                       if (aci_match_set( &b->a_set_pat, be, e, conn, op, 0 ) == 0) {
+                       struct berval bv;
+                       char buf[ACL_BUF_SIZE];
+                       if( b->a_set_style == ACL_STYLE_REGEX ){
+                               bv.bv_len = sizeof(buf) - 1;
+                               bv.bv_val = buf;
+                               string_expand( &bv, &b->a_set_pat, e->e_ndn, matches );
+                       }else{
+                               bv = b->a_set_pat;
+                       }
+                       if (aci_match_set( &bv, op, e, 0 ) == 0) {
                                continue;
                        }
                }
 
                if ( b->a_authz.sai_ssf ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_authz.sai_ssf: ACL %u > OP %u\n",
-                                  conn->c_connid, b->a_authz.sai_ssf, op->o_ssf ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                               "acl_mask: conn %lu  check a_authz.sai_ssf: ACL %u > OP %u\n",
+                               op->o_connid, b->a_authz.sai_ssf, op->o_ssf  );
 #else
                        Debug( LDAP_DEBUG_ACL, "<= check a_authz.sai_ssf: ACL %u > OP %u\n",
                                b->a_authz.sai_ssf, op->o_ssf, 0 );
@@ -793,9 +1281,11 @@ acl_mask(
 
                if ( b->a_authz.sai_transport_ssf ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_authz.sai_transport_ssf: ACL %u > OP %u\n",
-                                  conn->c_connid, b->a_authz.sai_transport_ssf, op->o_transport_ssf ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                               "acl_mask: conn %lu  check a_authz.sai_transport_ssf: "
+                               "ACL %u > OP %u\n",
+                               op->o_connid, b->a_authz.sai_transport_ssf, 
+                               op->o_transport_ssf  );
 #else
                        Debug( LDAP_DEBUG_ACL,
                                "<= check a_authz.sai_transport_ssf: ACL %u > OP %u\n",
@@ -808,9 +1298,10 @@ acl_mask(
 
                if ( b->a_authz.sai_tls_ssf ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d  check a_authz.sai_tls_ssf: ACL %u > OP %u\n",
-                                  conn->c_connid, b->a_authz.sai_tls_ssf, op->o_tls_ssf ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                               "acl_mask: conn %lu  check a_authz.sai_tls_ssf: ACL %u > "
+                               "OP %u\n",
+                               op->o_connid, b->a_authz.sai_tls_ssf, op->o_tls_ssf  );
 #else
                        Debug( LDAP_DEBUG_ACL,
                                "<= check a_authz.sai_tls_ssf: ACL %u > OP %u\n",
@@ -823,9 +1314,10 @@ acl_mask(
 
                if ( b->a_authz.sai_sasl_ssf ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                                  "acl_mask: conn %d check a_authz.sai_sasl_ssf: ACL %u > OP %u\n",
-                                  conn->c_connid, b->a_authz.sai_sasl_ssf, op->o_sasl_ssf ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                          "acl_mask: conn %lu check a_authz.sai_sasl_ssf: " 
+                          "ACL %u > OP %u\n",
+                               op->o_connid, b->a_authz.sai_sasl_ssf, op->o_sasl_ssf );
 #else
                        Debug( LDAP_DEBUG_ACL,
                                "<= check a_authz.sai_sasl_ssf: ACL %u > OP %u\n",
@@ -840,17 +1332,17 @@ acl_mask(
                if ( b->a_aci_at != NULL ) {
                        Attribute       *at;
                        slap_access_t grant, deny, tgrant, tdeny;
+                       struct berval parent_ndn, old_parent_ndn;
+                       BerVarray bvals = NULL;
+                       int ret,stop;
 
                        /* this case works different from the others above.
                         * since aci's themselves give permissions, we need
                         * to first check b->a_access_mask, the ACL's access level.
                         */
 
-                       if( op->o_ndn.bv_len == 0 ) {
-                               continue;
-                       }
-
-                       if ( e->e_dn == NULL ) {
+                       if ( e->e_nname.bv_len == 0 ) {
+                               /* no ACIs in the root DSE */
                                continue;
                        }
 
@@ -860,31 +1352,90 @@ acl_mask(
                        if ( ! ACL_GRANT( b->a_access_mask, *mask ) ) {
                                continue;
                        }
-
-                       /* get the aci attribute */
-                       at = attr_find( e->e_attrs, b->a_aci_at );
-                       if ( at == NULL ) {
-                               continue;
-                       }
-
                        /* start out with nothing granted, nothing denied */
                        ACL_INIT(tgrant);
                        ACL_INIT(tdeny);
 
-                       /* the aci is an multi-valued attribute.  The
-                        * rights are determined by OR'ing the individual
-                        * rights given by the acis.
+                       /* get the aci attribute */
+                       at = attr_find( e->e_attrs, b->a_aci_at );
+                       if ( at != NULL ) {
+                               ACL_RECORD_VALUE_STATE;
+                               /* the aci is an multi-valued attribute.  The
+                               * rights are determined by OR'ing the individual
+                               * rights given by the acis.
+                               */
+                               for ( i = 0; at->a_vals[i].bv_val != NULL; i++ ) {
+                                       if (aci_mask( op,
+                                               e, desc, val,
+                                               &at->a_nvals[i],
+                                               matches, &grant, &deny,  &aci_bv_entry ) != 0)
+                                       {
+                                               tgrant |= grant;
+                                               tdeny |= deny;
+                                       }
+                               }
+                               Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n",
+                                         accessmask2str(tgrant,accessmaskbuf), 
+                                         accessmask2str(tdeny, accessmaskbuf1), 0);
+
+                       }
+                       /* If the entry level aci didn't contain anything valid for the 
+                        * current operation, climb up the tree and evaluate the
+                        * acis with scope set to subtree
                         */
-                       for ( i = 0; at->a_vals[i] != NULL; i++ ) {
-                               if (aci_mask( be, conn, op,
-                                       e, desc, val, at->a_vals[i],
-                                       matches, &grant, &deny ) != 0)
-                               {
-                                       tgrant |= grant;
-                                       tdeny |= deny;
+                       if( (tgrant == ACL_PRIV_NONE) && (tdeny == ACL_PRIV_NONE) ){
+                               dnParent(&(e->e_nname), &parent_ndn);
+                               while ( parent_ndn.bv_val != old_parent_ndn.bv_val ){
+                                       old_parent_ndn = parent_ndn;
+                                       Debug(LDAP_DEBUG_ACL, "checking ACI of %s\n", parent_ndn.bv_val, 0, 0);
+                                       ret=backend_attribute(op, NULL, &parent_ndn, b->a_aci_at, &bvals);
+                                       switch(ret){
+                                               case LDAP_SUCCESS :
+                                                       if(bvals){
+                                                               for( i = 0; bvals[i].bv_val != NULL; i++){
+                                                                       ACL_RECORD_VALUE_STATE;
+                                                                       if (aci_mask(op, e, desc, val, &bvals[i], matches,
+                                                                                       &grant, &deny, &aci_bv_children) != 0) {
+                                                                               tgrant |= grant;
+                                                                               tdeny |= deny;
+                                                                               /* evaluation stops as soon as either a "deny" or a 
+                                                                                * "grant" directive matches.
+                                                                                */
+                                                                               if( (tgrant != ACL_PRIV_NONE) || (tdeny != ACL_PRIV_NONE) ){
+                                                                                       stop=1;
+                                                                               }
+                                                                       }
+                                                                       Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n", 
+                                                                               accessmask2str(tgrant,accessmaskbuf),
+                                                                               accessmask2str(tdeny, accessmaskbuf1), 0);
+                                                               }
+                                                       }
+                                                       stop=0;
+                                                       break;
+                                               case LDAP_NO_SUCH_ATTRIBUTE:
+                                                       /* just go on if the aci-Attribute is not present in
+                                                        * the current entry 
+                                                        */
+                                                       Debug(LDAP_DEBUG_ACL, "no such attribute\n", 0, 0, 0);
+                                                       stop=0;
+                                                       break;
+                                               case LDAP_NO_SUCH_OBJECT:
+                                                       /* We have reached the base object */
+                                                       Debug(LDAP_DEBUG_ACL, "no such object\n", 0, 0, 0);
+                                                       stop=1;
+                                                       break;
+                                               default:
+                                                       stop=1;
+                                                       break;
+                                       }
+                                       if(stop){
+                                               break;
+                                       }
+                                       dnParent(&old_parent_ndn, &parent_ndn);
                                }
                        }
 
+
                        /* remove anything that the ACL clause does not allow */
                        tgrant &= b->a_access_mask & ACL_PRIV_MASK;
                        tdeny &= ACL_PRIV_MASK;
@@ -919,11 +1470,11 @@ acl_mask(
                }
 
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_RESULTS,
-                          "acl_mask: conn %d  [%d] applying %s (%s)\n",
-                          conn->c_connid, i, accessmask2str( modmask, accessmaskbuf),
+               LDAP_LOG( ACL, RESULTS, 
+                          "acl_mask: [%d] applying %s (%s)\n",
+                          i, accessmask2str( modmask, accessmaskbuf),
                           b->a_type == ACL_CONTINUE ? "continue" : b->a_type == ACL_BREAK
-                          ? "break" : "stop" ));
+                          ? "break" : "stop"  );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "<= acl_mask: [%d] applying %s (%s)\n",
@@ -957,9 +1508,9 @@ acl_mask(
                }
 
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
-                          "acl_mask: conn %d  [%d] mask: %s\n",
-                          conn->c_connid, i, accessmask2str( *mask, accessmaskbuf) ));
+               LDAP_LOG( ACL, DETAIL1, 
+                          "acl_mask: conn %lu  [%d] mask: %s\n",
+                          op->o_connid, i, accessmask2str( *mask, accessmaskbuf)  );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "<= acl_mask: [%d] mask: %s\n",
@@ -981,9 +1532,9 @@ acl_mask(
        ACL_INIT(*mask);
 
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "acl", LDAP_LEVEL_RESULTS,
-                  "acl_mask: conn %d  no more <who> clauses, returning %d (stop)\n",
-                  conn->c_connid, accessmask2str( *mask, accessmaskbuf) ));
+       LDAP_LOG( ACL, RESULTS, 
+                  "acl_mask: conn %lu  no more <who> clauses, returning %d (stop)\n",
+                  op->o_connid, accessmask2str( *mask, accessmaskbuf) , 0 );
 #else
        Debug( LDAP_DEBUG_ACL,
                "<= acl_mask: no more <who> clauses, returning %s (stop)\n",
@@ -1001,63 +1552,55 @@ acl_mask(
 
 int
 acl_check_modlist(
-    Backend    *be,
-    Connection *conn,
-    Operation  *op,
-    Entry      *e,
-    Modifications      *mlist
+       Operation       *op,
+       Entry   *e,
+       Modifications   *mlist
 )
 {
-       int             i;
-
+       struct berval *bv;
+       AccessControlState state = ACL_STATE_INIT;
+       Backend *be;
+       int be_null = 0;
+       int ret = 1; /* default is access allowed */
+
+       be = op->o_bd;
+       if ( be == NULL ) {
+               be = &backends[0];
+               be_null = 1;
+               op->o_bd = be;
+       }
        assert( be != NULL );
 
        /* short circuit root database access */
-       if ( be_isroot( be, &op->o_ndn ) ) {
+       if ( be_isroot( op ) ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "acl", LDAP_LEVEL_DETAIL1,
-                          "acl_check_modlist: conn %d  access granted to root user\n",
-                          conn->c_connid ));
+               LDAP_LOG( ACL, DETAIL1, 
+                          "acl_check_modlist: conn %lu  access granted to root user\n",
+                          op->o_connid, 0, 0 );
 #else
                Debug( LDAP_DEBUG_ACL,
                        "<= acl_access_allowed: granted to database root\n",
                    0, 0, 0 );
 #endif
-               return 1;
+               goto done;
        }
 
        /* use backend default access if no backend acls */
-       if( be != NULL && be->be_acl == NULL ) {
+       if( op->o_bd != NULL && op->o_bd->be_acl == NULL ) {
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
-                          "acl_check_modlist: conn %d  backend default %s access %s to \"%s\"\n",
-                          conn->c_connid, access2str( ACL_WRITE ),
-                          be->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn ));
-#else
-               Debug( LDAP_DEBUG_ACL,
-                       "=> access_allowed: backend default %s access %s to \"%s\"\n",
+               LDAP_LOG( ACL, DETAIL1, 
+                       "acl_check_modlist: backend default %s access %s to \"%s\"\n",
                        access2str( ACL_WRITE ),
-                       be->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn );
-#endif
-               return be->be_dfltaccess >= ACL_WRITE;
-
-#ifdef notdef
-       /* be is always non-NULL */
-       /* use global default access if no global acls */
-       } else if ( be == NULL && global_acl == NULL ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
-                          "acl_check_modlist: conn %d  global default %s access %s to \"%s\"\n",
-                          conn->c_connid, access2str( ACL_WRITE ),
-                          global_default_access >= ACL_WRITE ? "granted" : "denied", op->o_dn ));
+                       op->o_bd->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", 
+                       op->o_dn.bv_val  );
 #else
                Debug( LDAP_DEBUG_ACL,
-                       "=> access_allowed: global default %s access %s to \"%s\"\n",
+                       "=> access_allowed: backend default %s access %s to \"%s\"\n",
                        access2str( ACL_WRITE ),
-                       global_default_access >= ACL_WRITE ? "granted" : "denied", op->o_dn );
-#endif
-               return global_default_access >= ACL_WRITE;
+                       op->o_bd->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn.bv_val );
 #endif
+               ret = (op->o_bd->be_dfltaccess >= ACL_WRITE);
+               goto done;
        }
 
        for ( ; mlist != NULL; mlist = mlist->sml_next ) {
@@ -1068,9 +1611,9 @@ acl_check_modlist(
                 */
                if ( is_at_no_user_mod( mlist->sml_desc->ad_type ) ) {
 #ifdef NEW_LOGGING
-                       LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
-                                  "acl_check_modlist: conn %d  no-user-mod %s: modify access granted\n",
-                                  conn->c_connid, mlist->sml_desc->ad_cname.bv_val ));
+                       LDAP_LOG( ACL, DETAIL1, 
+                                  "acl_check_modlist: conn %lu  no-user-mod %s: modify access granted\n",
+                                  op->o_connid, mlist->sml_desc->ad_cname.bv_val , 0 );
 #else
                        Debug( LDAP_DEBUG_ACL, "acl: no-user-mod %s:"
                                " modify access granted\n",
@@ -1081,74 +1624,77 @@ acl_check_modlist(
 
                switch ( mlist->sml_op ) {
                case LDAP_MOD_REPLACE:
-               case LDAP_MOD_ADD:
-                       if ( mlist->sml_bvalues == NULL ) {
-                               break;
+                       /*
+                        * We must check both permission to delete the whole
+                        * attribute and permission to add the specific attributes.
+                        * This prevents abuse from selfwriters.
+                        */
+                       if ( ! access_allowed( op, e,
+                               mlist->sml_desc, NULL, ACL_WRITE, &state ) )
+                       {
+                               ret = 0;
+                               goto done;
                        }
-                       for ( i = 0; mlist->sml_bvalues[i] != NULL; i++ ) {
-                               if ( ! access_allowed( be, conn, op, e,
-                                       mlist->sml_desc, mlist->sml_bvalues[i], ACL_WRITE ) )
+
+                       if ( mlist->sml_values == NULL ) break;
+
+                       /* fall thru to check value to add */
+
+               case LDAP_MOD_ADD:
+                       assert( mlist->sml_values != NULL );
+
+                       for ( bv = mlist->sml_nvalues
+                                       ? mlist->sml_nvalues : mlist->sml_values;
+                               bv->bv_val != NULL; bv++ )
+                       {
+                               if ( ! access_allowed( op, e,
+                                       mlist->sml_desc, bv, ACL_WRITE, &state ) )
                                {
-                                       return( 0 );
+                                       ret = 0;
+                                       goto done;
                                }
                        }
                        break;
 
                case LDAP_MOD_DELETE:
-                       if ( mlist->sml_bvalues == NULL ) {
-                               if ( ! access_allowed( be, conn, op, e,
-                                       mlist->sml_desc, NULL, ACL_WRITE ) )
+                       if ( mlist->sml_values == NULL ) {
+                               if ( ! access_allowed( op, e,
+                                       mlist->sml_desc, NULL, ACL_WRITE, NULL ) )
                                {
-                                       return( 0 );
+                                       ret = 0;
+                                       goto done;
                                }
                                break;
                        }
-                       for ( i = 0; mlist->sml_bvalues[i] != NULL; i++ ) {
-                               if ( ! access_allowed( be, conn, op, e,
-                                       mlist->sml_desc, mlist->sml_bvalues[i], ACL_WRITE ) )
+                       for ( bv = mlist->sml_nvalues
+                                       ? mlist->sml_nvalues : mlist->sml_values;
+                               bv->bv_val != NULL; bv++ )
+                       {
+                               if ( ! access_allowed( op, e,
+                                       mlist->sml_desc, bv, ACL_WRITE, &state ) )
                                {
-                                       return( 0 );
+                                       ret = 0;
+                                       goto done;
                                }
                        }
                        break;
-               }
-       }
-
-       return( 1 );
-}
 
-static char *
-aci_bvstrdup( struct berval *bv )
-{
-       char *s;
+               case SLAP_MOD_SOFTADD:
+                       /* allow adding attribute via modrdn thru */
+                       break;
 
-       s = (char *)ch_malloc(bv->bv_len + 1);
-       if (s != NULL) {
-               AC_MEMCPY(s, bv->bv_val, bv->bv_len);
-               s[bv->bv_len] = 0;
+               default:
+                       assert( 0 );
+                       /* not reached */
+                       ret = 0;
+                       break;
+               }
        }
-       return(s);
-}
-
-#ifdef SLAPD_ACI_ENABLED
-static int
-aci_strbvcmp(
-       const char *s,
-       struct berval *bv )
-{
-       int res, len;
 
-       res = strncasecmp( s, bv->bv_val, bv->bv_len );
-       if (res)
-               return(res);
-       len = strlen(s);
-       if (len > (int)bv->bv_len)
-               return(1);
-       if (len < (int)bv->bv_len)
-               return(-1);
-       return(0);
+done:
+       if (be_null) op->o_bd = NULL;
+       return( ret );
 }
-#endif
 
 static int
 aci_get_part(
@@ -1161,8 +1707,7 @@ aci_get_part(
        char *p;
 
        if (bv) {
-               bv->bv_len = 0;
-               bv->bv_val = NULL;
+               BER_BVZERO( bv );
        }
        len = list->bv_len;
        p = list->bv_val;
@@ -1189,119 +1734,94 @@ aci_get_part(
        return(bv->bv_len);
 }
 
-char **
-aci_set_gather (void *cookie, char *name, char *attr)
+BerVarray
+aci_set_gather (SetCookie *cookie, struct berval *name, struct berval *attr)
 {
-       struct {
-       Backend *be;
-       Entry *e;
-       Connection *conn;
-       Operation *op;
-       } *cp = (void *)cookie;
-       struct berval **bvals = NULL;
-       char **vals = NULL;
-       char *ndn;
-       int i;
+       AciSetCookie *cp = (AciSetCookie *)cookie;
+       BerVarray bvals = NULL;
+       struct berval ndn;
 
        /* this routine needs to return the bervals instead of
         * plain strings, since syntax is not known.  It should
         * also return the syntax or some "comparison cookie".
         */
 
-       if ((ndn = ch_strdup(name)) != NULL) {
-               if (dn_normalize(ndn) != NULL) {
-                       const char *text;
-                       AttributeDescription *desc = NULL;
-                       if (slap_str2ad(attr, &desc, &text) == LDAP_SUCCESS) {
-                               backend_attribute(cp->be, NULL, NULL,
-                                       cp->e, ndn, desc, &bvals);
-                               if (bvals != NULL) {
-                                       for (i = 0; bvals[i] != NULL; i++) { }
-                                       vals = ch_calloc(i + 1, sizeof(char *));
-                                       if (vals != NULL) {
-                                               while (--i >= 0) {
-                                                       vals[i] = bvals[i]->bv_val;
-                                                       bvals[i]->bv_val = NULL;
-                                               }
-                                       }
-                                       ber_bvecfree(bvals);
-                               }
-                       }
+       if (dnNormalize(0, NULL, NULL, name, &ndn, cp->op->o_tmpmemctx) == LDAP_SUCCESS) {
+               const char *text;
+               AttributeDescription *desc = NULL;
+               if (slap_bv2ad(attr, &desc, &text) == LDAP_SUCCESS) {
+                       backend_attribute(cp->op,
+                               cp->e, &ndn, desc, &bvals);
                }
-               ch_free(ndn);
+               sl_free(ndn.bv_val, cp->op->o_tmpmemctx);
        }
-       return(vals);
+       return(bvals);
 }
 
 static int
 aci_match_set (
        struct berval *subj,
-    Backend *be,
-    Entry *e,
-    Connection *conn,
-    Operation *op,
-    int setref
+       Operation *op,
+       Entry *e,
+       int setref
 )
 {
-       char *set = NULL;
+       struct berval set = BER_BVNULL;
        int rc = 0;
-       struct {
-       Backend *be;
-       Entry *e;
-       Connection *conn;
-       Operation *op;
-       } cookie;
+       AciSetCookie cookie;
+       Operation op2 = *op;
+
+       op2.o_conn = NULL;
 
        if (setref == 0) {
-               set = aci_bvstrdup(subj);
+               ber_dupbv_x( &set, subj, op2.o_tmpmemctx );
+
        } else {
-               struct berval bv;
-               char *subjdn;
-               char *setat;
-               struct berval **bvals;
+               struct berval subjdn, ndn = BER_BVNULL;
+               struct berval setat;
+               BerVarray bvals;
                const char *text;
                AttributeDescription *desc = NULL;
 
                /* format of string is "entry/setAttrName" */
-               if (aci_get_part(subj, 0, '/', &bv) < 0) {
+               if (aci_get_part(subj, 0, '/', &subjdn) < 0) {
                        return(0);
                }
 
-               subjdn = aci_bvstrdup(&bv);
-               if ( subjdn == NULL ) {
-                       return(0);
+               if ( aci_get_part(subj, 1, '/', &setat) < 0 ) {
+                       setat = aci_bv_set_attr;
                }
 
-               if ( aci_get_part(subj, 1, '/', &bv) < 0 ) {
-                       setat = ch_strdup( SLAPD_ACI_SET_ATTR );
-               } else {
-                       setat = aci_bvstrdup(&bv);
-               }
-               if ( setat != NULL ) {
-                       if ( dn_normalize(subjdn) != NULL
-                               && slap_str2ad(setat, &desc, &text) == LDAP_SUCCESS )
+               /*
+                * NOTE: dnNormalize honors the ber_len field
+                * as the length of the dn to be normalized
+                */
+               if ( slap_bv2ad(&setat, &desc, &text) == LDAP_SUCCESS ) {
+                       if ( dnNormalize(0, NULL, NULL, &subjdn, &ndn, op2.o_tmpmemctx) == LDAP_SUCCESS )
                        {
-                               backend_attribute(be, NULL, NULL, e,
-                                       subjdn, desc, &bvals);
-                               if ( bvals != NULL ) {
-                                       if ( bvals[0] != NULL )
-                                               set = ch_strdup(bvals[0]->bv_val);
-                                       ber_bvecfree(bvals);
+                               backend_attribute(&op2, e, &ndn, desc, &bvals);
+                               if ( bvals != NULL && bvals[0].bv_val != NULL ) {
+                                       int i;
+                                       set = bvals[0];
+                                       bvals[0].bv_val = NULL;
+                                       for (i=1;bvals[i].bv_val;i++);
+                                       bvals[0].bv_val = bvals[i-1].bv_val;
+                                       bvals[i-1].bv_val = NULL;
                                }
+                               ber_bvarray_free_x(bvals, op2.o_tmpmemctx);
+                               sl_free(ndn.bv_val, op2.o_tmpmemctx);
                        }
-                       ch_free(setat);
                }
-               ch_free(subjdn);
        }
 
-       if (set != NULL) {
-               cookie.be = be;
+       if (set.bv_val != NULL) {
+               cookie.op = &op2;
                cookie.e = e;
-               cookie.conn = conn;
-               cookie.op = op;
-               rc = (set_filter(aci_set_gather, &cookie, set, op->o_ndn.bv_val, e->e_ndn, NULL) > 0);
-               ch_free(set);
+               rc = (slap_set_filter(aci_set_gather, (SetCookie *)&cookie, &set,
+                       &op2.o_ndn, &e->e_nname, NULL) > 0);
+               sl_free(set.bv_val, op2.o_tmpmemctx);
        }
+
        return(rc);
 }
 
@@ -1354,7 +1874,7 @@ aci_list_map_rights(
 static int
 aci_list_has_attr(
        struct berval *list,
-       const char *attr,
+       const struct berval *attr,
        struct berval *val )
 {
        struct berval bv, left, right;
@@ -1364,13 +1884,13 @@ aci_list_has_attr(
                if (aci_get_part(&bv, 0, '=', &left) < 0
                        || aci_get_part(&bv, 1, '=', &right) < 0)
                {
-                       if (aci_strbvcmp(attr, &bv) == 0)
+                       if (ber_bvstrcasecmp(attr, &bv) == 0)
                                return(1);
                } else if (val == NULL) {
-                       if (aci_strbvcmp(attr, &left) == 0)
+                       if (ber_bvstrcasecmp(attr, &left) == 0)
                                return(1);
                } else {
-                       if (aci_strbvcmp(attr, &left) == 0) {
+                       if (ber_bvstrcasecmp(attr, &left) == 0) {
                                /* this is experimental code that implements a
                                 * simple (prefix) match of the attribute value.
                                 * the ACI draft does not provide for aci's that
@@ -1388,7 +1908,7 @@ aci_list_has_attr(
                                if (aci_get_part(&right, 0, '*', &left) < 0
                                        || right.bv_len <= left.bv_len)
                                {
-                                       if (aci_strbvcmp(val->bv_val, &right) == 0)
+                                       if (ber_bvstrcasecmp(val, &right) == 0)
                                                return(1);
                                } else if (val->bv_len >= left.bv_len) {
                                        if (strncasecmp( val->bv_val, left.bv_val, left.bv_len ) == 0)
@@ -1403,7 +1923,7 @@ aci_list_has_attr(
 static slap_access_t
 aci_list_get_attr_rights(
        struct berval *list,
-       const char *attr,
+       const struct berval *attr,
        struct berval *val )
 {
     struct berval bv;
@@ -1425,7 +1945,7 @@ aci_list_get_attr_rights(
 static int
 aci_list_get_rights(
        struct berval *list,
-       const char *attr,
+       const struct berval *attr,
        struct berval *val,
        slap_access_t *grant,
        slap_access_t *deny )
@@ -1434,8 +1954,9 @@ aci_list_get_rights(
     slap_access_t *mask;
     int i, found;
 
-       if (attr == NULL || *attr == 0 || strcasecmp(attr, "entry") == 0) {
-               attr = "[entry]";
+       if (attr == NULL || attr->bv_len == 0 
+                       || ber_bvstrcasecmp( attr, &aci_bv_entry ) == 0) {
+               attr = &aci_bv_br_entry;
        }
 
        found = 0;
@@ -1445,9 +1966,9 @@ aci_list_get_rights(
        for (i = 0; aci_get_part(list, i, '$', &perm) >= 0; i++) {
                if (aci_get_part(&perm, 0, ';', &actn) < 0)
                        continue;
-               if (aci_strbvcmp( "grant", &actn ) == 0) {
+               if (ber_bvstrcasecmp( &aci_bv_grant, &actn ) == 0) {
                        mask = grant;
-               } else if (aci_strbvcmp( "deny", &actn ) == 0) {
+               } else if (ber_bvstrcasecmp( &aci_bv_deny, &actn ) == 0) {
                        mask = deny;
                } else {
                        continue;
@@ -1455,7 +1976,7 @@ aci_list_get_rights(
 
                found = 1;
                *mask |= aci_list_get_attr_rights(&perm, attr, val);
-               *mask |= aci_list_get_attr_rights(&perm, "[all]", NULL);
+               *mask |= aci_list_get_attr_rights(&perm, &aci_bv_br_all, NULL);
        }
        return(found);
 }
@@ -1463,75 +1984,62 @@ aci_list_get_rights(
 static int
 aci_group_member (
        struct berval *subj,
-       const char *defgrpoc,
-       const char *defgrpat,
-    Backend            *be,
-    Entry              *e,
-    Connection         *conn,
-    Operation          *op,
+       struct berval *defgrpoc,
+       struct berval *defgrpat,
+       Operation               *op,
+       Entry           *e,
        regmatch_t      *matches
 )
 {
-       struct berval bv;
-       char *subjdn, *grpdn = NULL;
-       char *grpoc;
-       char *grpat;
+       struct berval subjdn;
+       struct berval grpoc;
+       struct berval grpat;
        ObjectClass *grp_oc = NULL;
        AttributeDescription *grp_ad = NULL;
        const char *text;
        int rc;
 
        /* format of string is "group/objectClassValue/groupAttrName" */
-       if (aci_get_part(subj, 0, '/', &bv) < 0) {
-               return(0);
-       }
-
-       subjdn = aci_bvstrdup(&bv);
-       if (subjdn == NULL) {
+       if (aci_get_part(subj, 0, '/', &subjdn) < 0) {
                return(0);
        }
 
-       if (aci_get_part(subj, 1, '/', &bv) < 0) {
-               grpoc = ch_strdup( defgrpoc );
-       } else {
-               grpoc = aci_bvstrdup(&bv);
+       if (aci_get_part(subj, 1, '/', &grpoc) < 0) {
+               grpoc = *defgrpoc;
        }
 
-       if (aci_get_part(subj, 2, '/', &bv) < 0) {
-               grpat = ch_strdup( defgrpat );
-       } else {
-               grpat = aci_bvstrdup(&bv);
+       if (aci_get_part(subj, 2, '/', &grpat) < 0) {
+               grpat = *defgrpat;
        }
 
-       rc = slap_str2ad( grpat, &grp_ad, &text );
+       rc = slap_bv2ad( &grpat, &grp_ad, &text );
        if( rc != LDAP_SUCCESS ) {
                rc = 0;
                goto done;
        }
        rc = 0;
 
-       grp_oc = oc_find( grpoc );
-       grpdn = (char *)ch_malloc(1024);
-
-       if (grp_oc != NULL && grp_ad != NULL && grpdn != NULL) {
-               string_expand(grpdn, 1024, subjdn, e->e_ndn, matches);
-               if ( dn_normalize(grpdn) != NULL ) {
-                       rc = (backend_group(be, conn, op, e, grpdn, &op->o_ndn, grp_oc, grp_ad) == 0);
+       grp_oc = oc_bvfind( &grpoc );
+
+       if (grp_oc != NULL && grp_ad != NULL ) {
+               char buf[ACL_BUF_SIZE];
+               struct berval bv, ndn;
+               bv.bv_len = sizeof( buf ) - 1;
+               bv.bv_val = (char *)&buf;
+               string_expand(&bv, &subjdn, e->e_ndn, matches);
+               if ( dnNormalize(0, NULL, NULL, &bv, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS ) {
+                       rc = (backend_group(op, e, &ndn, &op->o_ndn,
+                               grp_oc, grp_ad) == 0);
+                       free( ndn.bv_val );
                }
        }
 
 done:
-       ch_free(grpdn);
-       ch_free(grpat);
-       ch_free(grpoc);
-       ch_free(subjdn);
        return(rc);
 }
 
 static int
 aci_mask(
-    Backend                    *be,
-    Connection         *conn,
     Operation          *op,
     Entry                      *e,
        AttributeDescription *desc,
@@ -1539,25 +2047,26 @@ aci_mask(
     struct berval      *aci,
        regmatch_t              *matches,
        slap_access_t   *grant,
-       slap_access_t   *deny
+       slap_access_t   *deny,
+       struct berval   *scope
 )
 {
     struct berval bv, perms, sdn;
-    char *subjdn;
        int rc;
-       char *attr = desc->ad_cname.bv_val;
+               
 
-       assert( attr != NULL );
+       assert( desc->ad_cname.bv_val != NULL );
 
        /* parse an aci of the form:
                oid#scope#action;rights;attr;rights;attr$action;rights;attr;rights;attr#dnType#subjectDN
 
           See draft-ietf-ldapext-aci-model-04.txt section 9.1 for
           a full description of the format for this attribute.
+          Differences: "this" in the draft is "self" here, and
+          "self" and "public" is in the position of dnType.
 
           For now, this routine only supports scope=entry.
         */
-
        /* check that the aci has all 5 components */
        if (aci_get_part(aci, 4, '#', NULL) < 0)
                return(0);
@@ -1566,9 +2075,9 @@ aci_mask(
        if (aci_get_part(aci, 0, '#', &bv) < 0)
                return(0);
 
-       /* check that the scope is "entry" */
+       /* check that the scope matches */
        if (aci_get_part(aci, 1, '#', &bv) < 0
-               || aci_strbvcmp( "entry", &bv ) != 0)
+               || ber_bvstrcasecmp( scope, &bv ) != 0)
        {
                return(0);
        }
@@ -1578,7 +2087,7 @@ aci_mask(
                return(0);
 
        /* check if any permissions allow desired access */
-       if (aci_list_get_rights(&perms, attr, val, grant, deny) == 0)
+       if (aci_list_get_rights(&perms, &desc->ad_cname, val, grant, deny) == 0)
                return(0);
 
        /* see if we have a DN match */
@@ -1588,30 +2097,29 @@ aci_mask(
        if (aci_get_part(aci, 4, '#', &sdn) < 0)
                return(0);
 
-       if (aci_strbvcmp( "access-id", &bv ) == 0) {
-               subjdn = aci_bvstrdup(&sdn);
-               if (subjdn == NULL)
-                       return(0);
-               rc = 1;
-               if ( dn_normalize(subjdn) != NULL )
-                       if (strcasecmp(op->o_ndn.bv_val, subjdn) != 0)
-                               rc = 0;
-               ch_free(subjdn);
-               return(rc);
-       }
+       if (ber_bvstrcasecmp( &aci_bv_access_id, &bv ) == 0) {
+               struct berval ndn;
+               rc = 0;
+               if ( dnNormalize(0, NULL, NULL, &sdn, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS ) {
+                       if (dn_match( &op->o_ndn, &ndn))
+                               rc = 1;
+                       free(ndn.bv_val);
+               }
+               return (rc);
+
+       } else if (ber_bvstrcasecmp( &aci_bv_public, &bv ) == 0) {
+               return(1);
 
-       if (aci_strbvcmp( "self", &bv ) == 0) {
-               if (strcmp(op->o_ndn.bv_val, e->e_ndn) == 0)
+       } else if (ber_bvstrcasecmp( &aci_bv_self, &bv ) == 0) {
+               if (dn_match(&op->o_ndn, &e->e_nname))
                        return(1);
 
-       } else if (aci_strbvcmp( "dnattr", &bv ) == 0) {
-               char *dnattr = aci_bvstrdup(&sdn);
+       } else if (ber_bvstrcasecmp( &aci_bv_dnattr, &bv ) == 0) {
                Attribute *at;
                AttributeDescription *ad = NULL;
                const char *text;
 
-               rc = slap_str2ad( dnattr, &ad, &text );
-               ch_free( dnattr );
+               rc = slap_bv2ad( &sdn, &ad, &text );
 
                if( rc != LDAP_SUCCESS ) {
                        return 0;
@@ -1625,7 +2133,12 @@ aci_mask(
                        at != NULL;
                        at = attrs_find( at->a_next, ad ) )
                {
-                       if (value_find( ad, at->a_vals, &bv) == 0 ) {
+                       if (value_find_ex( ad,
+                               SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
+                                       SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
+                               at->a_nvals,
+                               &bv, op->o_tmpmemctx) == 0 )
+                       {
                                rc = 1;
                                break;
                        }
@@ -1634,20 +2147,20 @@ aci_mask(
                return rc;
 
 
-       } else if (aci_strbvcmp( "group", &bv ) == 0) {
-               if (aci_group_member(&sdn, SLAPD_GROUP_CLASS, SLAPD_GROUP_ATTR, be, e, conn, op, matches))
+       } else if (ber_bvstrcasecmp( &aci_bv_group, &bv ) == 0) {
+               if (aci_group_member(&sdn, &aci_bv_group_class, &aci_bv_group_attr, op, e, matches))
                        return(1);
 
-       } else if (aci_strbvcmp( "role", &bv ) == 0) {
-               if (aci_group_member(&sdn, SLAPD_ROLE_CLASS, SLAPD_ROLE_ATTR, be, e, conn, op, matches))
+       } else if (ber_bvstrcasecmp( &aci_bv_role, &bv ) == 0) {
+               if (aci_group_member(&sdn, &aci_bv_role_class, &aci_bv_role_attr, op, e, matches))
                        return(1);
 
-       } else if (aci_strbvcmp( "set", &bv ) == 0) {
-               if (aci_match_set(&sdn, be, e, conn, op, 0))
+       } else if (ber_bvstrcasecmp( &aci_bv_set, &bv ) == 0) {
+               if (aci_match_set(&sdn, op, e, 0))
                        return(1);
 
-       } else if (aci_strbvcmp( "set-ref", &bv ) == 0) {
-               if (aci_match_set(&sdn, be, e, conn, op, 1))
+       } else if (ber_bvstrcasecmp( &aci_bv_set_ref, &bv ) == 0) {
+               if (aci_match_set(&sdn, op, e, 1))
                        return(1);
 
        }
@@ -1659,44 +2172,67 @@ aci_mask(
 
 static void
 string_expand(
-       char *newbuf,
-       int bufsiz,
-       char *pat,
+       struct berval *bv,
+       struct berval *pat,
        char *match,
        regmatch_t *matches)
 {
-       int     size;
+       ber_len_t       size;
        char   *sp;
        char   *dp;
        int     flag;
 
        size = 0;
-       newbuf[0] = '\0';
-       bufsiz--; /* leave space for lone $ */
+       bv->bv_val[0] = '\0';
+       bv->bv_len--; /* leave space for lone $ */
 
        flag = 0;
-       for ( dp = newbuf, sp = pat; size < bufsiz && *sp ; sp++) {
+       for ( dp = bv->bv_val, sp = pat->bv_val; size < bv->bv_len &&
+               sp < pat->bv_val + pat->bv_len ; sp++ )
+       {
                /* did we previously see a $ */
-               if (flag) {
-                       if (*sp == '$') {
+               if ( flag ) {
+                       if ( flag == 1 && *sp == '$' ) {
                                *dp++ = '$';
                                size++;
-                       } else if (*sp >= '0' && *sp <= '9' ) {
+                               flag = 0;
+
+                       } else if ( flag == 1 && *sp == '{' /*'}'*/) {
+                               flag = 2;
+
+                       } else if ( *sp >= '0' && *sp <= '9' ) {
                                int     n;
                                int     i;
                                int     l;
 
                                n = *sp - '0';
+
+                               if ( flag == 2 ) {
+                                       for ( sp++; *sp != '\0' && *sp != /*'{'*/ '}'; sp++ ) {
+                                               if ( *sp >= '0' && *sp <= '9' ) {
+                                                       n = 10*n + ( *sp - '0' );
+                                               }
+                                       }
+
+                                       if ( *sp != /*'{'*/ '}' ) {
+                                               /* error */
+                                       }
+                               }
+
+                               if ( n >= MAXREMATCHES ) {
+                               
+                               }
+                               
                                *dp = '\0';
                                i = matches[n].rm_so;
                                l = matches[n].rm_eo; 
-                               for ( ; size < 512 && i < l; size++, i++ ) {
+                               for ( ; size < bv->bv_len && i < l; size++, i++ ) {
                                        *dp++ = match[i];
-                                       size++;
                                }
                                *dp = '\0';
+
+                               flag = 0;
                        }
-                       flag = 0;
                } else {
                        if (*sp == '$') {
                                flag = 1;
@@ -1707,52 +2243,56 @@ string_expand(
                }
        }
 
-       if (flag) {
+       if ( flag ) {
                /* must have ended with a single $ */
                *dp++ = '$';
                size++;
        }
 
        *dp = '\0';
+       bv->bv_len = size;
 
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
-                  "string_expand:  pattern = %s\n", pat ));
-       LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL1,
-                  "string_expand:  expanded = %s\n", newbuf ));
+       LDAP_LOG( ACL, DETAIL1, 
+          "string_expand:  pattern = %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
+       LDAP_LOG( ACL, DETAIL1, "string_expand:  expanded = %s\n", bv->bv_val, 0, 0 );
 #else
-       Debug( LDAP_DEBUG_TRACE, "=> string_expand: pattern:  %s\n", pat, 0, 0 );
-       Debug( LDAP_DEBUG_TRACE, "=> string_expand: expanded: %s\n", newbuf, 0, 0 );
+       Debug( LDAP_DEBUG_TRACE, "=> string_expand: pattern:  %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
+       Debug( LDAP_DEBUG_TRACE, "=> string_expand: expanded: %s\n", bv->bv_val, 0, 0 );
 #endif
 }
 
 static int
 regex_matches(
-       char *pat,                              /* pattern to expand and match against */
+       struct berval *pat,                     /* pattern to expand and match against */
        char *str,                              /* string to match against pattern */
        char *buf,                              /* buffer with $N expansion variables */
        regmatch_t *matches             /* offsets in buffer for $N expansion variables */
 )
 {
        regex_t re;
-       char newbuf[512];
+       char newbuf[ACL_BUF_SIZE];
+       struct berval bv;
        int     rc;
 
+       bv.bv_len = sizeof(newbuf) - 1;
+       bv.bv_val = newbuf;
+
        if(str == NULL) str = "";
 
-       string_expand(newbuf, sizeof(newbuf), pat, buf, matches);
+       string_expand(&bv, pat, buf, matches);
        if (( rc = regcomp(&re, newbuf, REG_EXTENDED|REG_ICASE))) {
-               char error[512];
+               char error[ACL_BUF_SIZE];
                regerror(rc, &re, error, sizeof(error));
 
 #ifdef NEW_LOGGING
-               LDAP_LOG(( "aci", LDAP_LEVEL_ERR,
+               LDAP_LOG( ACL, ERR, 
                           "regex_matches: compile( \"%s\", \"%s\") failed %s\n",
-                          pat, str, error ));
+                          pat->bv_val, str, error  );
 #else
                Debug( LDAP_DEBUG_TRACE,
                    "compile( \"%s\", \"%s\") failed %s\n",
-                       pat, str, error );
+                       pat->bv_val, str, error );
 #endif
                return( 0 );
        }
@@ -1761,11 +2301,9 @@ regex_matches(
        regfree( &re );
 
 #ifdef NEW_LOGGING
-       LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL2,
-                  "regex_matches: string:   %s\n", str ));
-       LDAP_LOG(( "aci", LDAP_LEVEL_DETAIL2,
-                  "regex_matches: rc:  %d  %s\n",
-                  rc, rc ? "matches" : "no matches" ));
+       LDAP_LOG( ACL, DETAIL2, "regex_matches: string:   %s\n", str, 0, 0 );
+       LDAP_LOG( ACL, DETAIL2, "regex_matches: rc:     %d  %s\n",
+                  rc, rc ? "matches" : "no matches", 0  );
 #else
        Debug( LDAP_DEBUG_TRACE,
            "=> regex_matches: string:   %s\n", str, 0, 0 );