]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/acl.c
ITS#6101: Move sru_search first in union SlapReply.sr_un, for initialization.
[openldap] / servers / slapd / acl.c
index 2d959190cce6acc3c859a4dc8e2948b4e8155087..4b11753d38769fcf780c242334c7105ce51e1aa7 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2008 The OpenLDAP Foundation.
+ * Copyright 1998-2009 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -52,7 +52,7 @@ static AccessControl * slap_acl_get(
        Operation *op, Entry *e,
        AttributeDescription *desc,
        struct berval *val,
-       int nmatch, regmatch_t *matches,
+       AclRegexMatches *matches,
        AccessControlState *state );
 
 static slap_control_t slap_acl_mask(
@@ -60,14 +60,15 @@ static slap_control_t slap_acl_mask(
        Operation *op, Entry *e,
        AttributeDescription *desc,
        struct berval *val,
-       int nmatch,
-       regmatch_t *matches,
+       AclRegexMatches *matches,
        int count,
-       AccessControlState *state );
+       AccessControlState *state,
+       slap_access_t access );
 
 static int     regex_matches(
-       struct berval *pat, char *str, char *buf,
-       int nmatch, regmatch_t *matches);
+       struct berval *pat, char *str,
+       struct berval *dn_matches, struct berval *val_matches,
+       AclRegexMatches *matches);
 
 typedef        struct AclSetCookie {
        SetCookie       asc_cookie;
@@ -75,6 +76,7 @@ typedef       struct AclSetCookie {
        Entry           *asc_e;
 } AclSetCookie;
 
+
 SLAP_SET_GATHER acl_set_gather;
 SLAP_SET_GATHER acl_set_gather2;
 
@@ -115,6 +117,17 @@ slap_access_always_allowed(
        return 1;
 }
 
+#define MATCHES_DNMAXCOUNT(m)                                  \
+       ( sizeof ( (m)->dn_data ) / sizeof( *(m)->dn_data ) )
+#define MATCHES_VALMAXCOUNT(m)                                         \
+       ( sizeof ( (m)->val_data ) / sizeof( *(m)->val_data ) )
+#define MATCHES_MEMSET(m) do {                                 \
+       memset( (m)->dn_data, '\0', sizeof( (m)->dn_data ) );   \
+       memset( (m)->val_data, '\0', sizeof( (m)->val_data ) ); \
+       (m)->dn_count = MATCHES_DNMAXCOUNT( (m) );              \
+       (m)->val_count = MATCHES_VALMAXCOUNT( (m) );            \
+} while ( 0 /* CONSTCOND */ )
+
 int
 slap_access_allowed(
        Operation               *op,
@@ -136,7 +149,8 @@ slap_access_allowed(
        slap_control_t                  control;
        slap_access_t                   access_level;
        const char                      *attr;
-       regmatch_t                      matches[MAXREMATCHES];
+       AclRegexMatches                 matches;
+       AccessControlState              acl_state = ACL_STATE_INIT;
 
        assert( op != NULL );
        assert( e != NULL );
@@ -178,7 +192,7 @@ slap_access_allowed(
        }
 
        /* use backend default access if no backend acls */
-       if ( op->o_bd->be_acl == NULL ) {
+       if ( op->o_bd->be_acl == NULL && frontendDB->be_acl == NULL ) {
                int     i;
 
                Debug( LDAP_DEBUG_ACL,
@@ -200,33 +214,68 @@ slap_access_allowed(
        ret = 0;
        control = ACL_BREAK;
 
-       if ( state && state->as_vd_ad == desc ) {
+       if ( state == NULL )
+               state = &acl_state;
+       if ( state->as_vd_ad == desc ) {
                a = state->as_vd_acl;
                count = state->as_vd_acl_count;
-
+               if ( state->as_fe_done )
+                       state->as_fe_done--;
        } else {
-               if ( state ) state->as_vi_acl = NULL;
+               state->as_vi_acl = NULL;
+
                a = NULL;
                count = 0;
        }
+       if ( a == NULL )
+               state->as_fe_done = 0;
+
        ACL_PRIV_ASSIGN( mask, *maskp );
-       memset( matches, '\0', sizeof( matches ) );
+       MATCHES_MEMSET( &matches );
 
        while ( ( a = slap_acl_get( a, &count, op, e, desc, val,
-               MAXREMATCHES, matches, state ) ) != NULL )
+               &matches, state ) ) != NULL )
        {
-               int i;
+               int i; 
+               int dnmaxcount = MATCHES_DNMAXCOUNT( &matches );
+               int valmaxcount = MATCHES_VALMAXCOUNT( &matches );
+               regmatch_t *dn_data = matches.dn_data;
+               regmatch_t *val_data = matches.val_data;
+
+               /* DN matches */
+               for ( i = 0; i < dnmaxcount && dn_data[i].rm_eo > 0; i++ ) {
+                       char *data = e->e_ndn;
+
+                       Debug( LDAP_DEBUG_ACL, "=> match[dn%d]: %d %d ", i,
+                               (int)dn_data[i].rm_so, 
+                               (int)dn_data[i].rm_eo );
+                       if ( dn_data[i].rm_so <= dn_data[0].rm_eo ) {
+                               int n;
+                               for ( n = dn_data[i].rm_so; 
+                                     n < dn_data[i].rm_eo; n++ ) {
+                                       Debug( LDAP_DEBUG_ACL, "%c", 
+                                              data[n], 0, 0 );
+                               }
+                       }
+                       Debug( LDAP_DEBUG_ACL, "\n", 0, 0, 0 );
+               }
+
+               /* val matches */
+               for ( i = 0; i < valmaxcount && val_data[i].rm_eo > 0; i++ ) {
+                       char *data = val->bv_val;
 
-               for ( i = 0; i < MAXREMATCHES && matches[i].rm_so > 0; i++ ) {
-                       Debug( LDAP_DEBUG_ACL, "=> match[%d]: %d %d ", i,
-                               (int)matches[i].rm_so, (int)matches[i].rm_eo );
-                       if ( matches[i].rm_so <= matches[0].rm_eo ) {
+                       Debug( LDAP_DEBUG_ACL, "=> match[val%d]: %d %d ", i,
+                               (int)val_data[i].rm_so, 
+                               (int)val_data[i].rm_eo );
+                       if ( val_data[i].rm_so <= val_data[0].rm_eo ) {
                                int n;
-                               for ( n = matches[i].rm_so; n < matches[i].rm_eo; n++ ) {
-                                       Debug( LDAP_DEBUG_ACL, "%c", e->e_ndn[n], 0, 0 );
+                               for ( n = val_data[i].rm_so; 
+                                     n < val_data[i].rm_eo; n++ ) {
+                                       Debug( LDAP_DEBUG_ACL, "%c", 
+                                              data[n], 0, 0 );
                                }
                        }
-                       Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 );
+                       Debug( LDAP_DEBUG_ACL, "\n", 0, 0, 0 );
                }
 
                if ( state ) {
@@ -246,13 +295,13 @@ slap_access_allowed(
                }
 
                control = slap_acl_mask( a, &mask, op,
-                       e, desc, val, MAXREMATCHES, matches, count, state );
+                       e, desc, val, &matches, count, state, access );
 
                if ( control != ACL_BREAK ) {
                        break;
                }
 
-               memset( matches, '\0', sizeof( matches ) );
+               MATCHES_MEMSET( &matches );
        }
 
        if ( ACL_IS_INVALID( mask ) ) {
@@ -464,24 +513,24 @@ slap_acl_get(
        Entry           *e,
        AttributeDescription *desc,
        struct berval   *val,
-       int                     nmatch,
-       regmatch_t      *matches,
+       AclRegexMatches *matches,
        AccessControlState *state )
 {
        const char *attr;
-       int dnlen, patlen;
+       ber_len_t dnlen;
        AccessControl *prev;
 
        assert( e != NULL );
        assert( count != NULL );
        assert( desc != NULL );
+       assert( state != NULL );
 
        attr = desc->ad_cname.bv_val;
 
        assert( attr != NULL );
 
        if( a == NULL ) {
-               if( op->o_bd == NULL ) {
+               if( op->o_bd == NULL || op->o_bd->be_acl == NULL ) {
                        a = frontendDB->be_acl;
                } else {
                        a = op->o_bd->be_acl;
@@ -489,7 +538,8 @@ slap_acl_get(
                prev = NULL;
 
                assert( a != NULL );
-
+               if ( a == frontendDB->be_acl )
+                       state->as_fe_done = 1;
        } else {
                prev = a;
                a = a->acl_next;
@@ -497,17 +547,26 @@ slap_acl_get(
 
        dnlen = e->e_nname.bv_len;
 
+ retry:
        for ( ; a != NULL; prev = a, a = a->acl_next ) {
                (*count) ++;
 
+               if ( a != frontendDB->be_acl && state->as_fe_done )
+                       state->as_fe_done++;
+
                if ( a->acl_dn_pat.bv_len || ( a->acl_dn_style != ACL_STYLE_REGEX )) {
                        if ( a->acl_dn_style == ACL_STYLE_REGEX ) {
                                Debug( LDAP_DEBUG_ACL, "=> dnpat: [%d] %s nsub: %d\n", 
                                        *count, a->acl_dn_pat.bv_val, (int) a->acl_dn_re.re_nsub );
-                               if (regexec(&a->acl_dn_re, e->e_ndn, nmatch, matches, 0))
+                               if ( regexec ( &a->acl_dn_re, 
+                                              e->e_ndn, 
+                                              matches->dn_count, 
+                                              matches->dn_data, 0 ) )
                                        continue;
 
                        } else {
+                               ber_len_t patlen;
+
                                Debug( LDAP_DEBUG_ACL, "=> dn: [%d] %s\n", 
                                        *count, a->acl_dn_pat.bv_val, 0 );
                                patlen = a->acl_dn_pat.bv_len;
@@ -521,7 +580,7 @@ slap_acl_get(
 
                                } else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
                                        ber_len_t       rdnlen = 0;
-                                       int             sep = 0;
+                                       ber_len_t       sep = 0;
 
                                        if ( dnlen <= patlen )
                                                continue;
@@ -533,7 +592,7 @@ slap_acl_get(
                                        }
 
                                        rdnlen = dn_rdnlen( NULL, &e->e_nname );
-                                       if ( rdnlen != dnlen - patlen - sep )
+                                       if ( rdnlen + patlen + sep != dnlen )
                                                continue;
 
                                } else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
@@ -556,7 +615,10 @@ slap_acl_get(
                }
 
                if ( a->acl_attrs && !ad_inlist( desc, a->acl_attrs ) ) {
-                       matches[0].rm_so = matches[0].rm_eo = -1;
+                       matches->dn_data[0].rm_so = -1;
+                       matches->dn_data[0].rm_eo = -1;
+                       matches->val_data[0].rm_so = -1;
+                       matches->val_data[0].rm_eo = -1;
                        continue;
                }
 
@@ -566,7 +628,7 @@ slap_acl_get(
                                continue;
                        }
 
-                       if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) {
+                       if( !( 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 - 1;
@@ -576,7 +638,10 @@ slap_acl_get(
                                Debug( LDAP_DEBUG_ACL,
                                        "acl_get: valpat %s\n",
                                        a->acl_attrval.bv_val, 0, 0 );
-                               if ( regexec( &a->acl_attrval_re, val->bv_val, 0, NULL, 0 ) )
+                               if ( regexec ( &a->acl_attrval_re, 
+                                                   val->bv_val, 
+                                                   matches->val_count, 
+                                                   matches->val_data, 0 ) )
                                {
                                        continue;
                                }
@@ -596,7 +661,7 @@ slap_acl_get(
                                                continue;
                                        
                                } else {
-                                       int             patlen, vdnlen;
+                                       ber_len_t       patlen, vdnlen;
        
                                        patlen = a->acl_attrval.bv_len;
                                        vdnlen = val->bv_len;
@@ -615,7 +680,7 @@ slap_acl_get(
                                                        continue;
        
                                                rdnlen = dn_rdnlen( NULL, val );
-                                               if ( rdnlen != vdnlen - patlen - 1 )
+                                               if ( rdnlen + patlen + 1 != vdnlen )
                                                        continue;
        
                                        } else if ( a->acl_attrval_style == ACL_STYLE_SUBTREE ) {
@@ -648,6 +713,12 @@ slap_acl_get(
                return a;
        }
 
+       if ( !state->as_fe_done ) {
+               state->as_fe_done = 1;
+               a = frontendDB->be_acl;
+               goto retry;
+       }
+
        Debug( LDAP_DEBUG_ACL, "<= acl_get: done.\n", 0, 0, 0 );
        return( NULL );
 }
@@ -667,11 +738,9 @@ static int
 acl_mask_dn(
        Operation               *op,
        Entry                   *e,
-       AttributeDescription    *desc,
        struct berval           *val,
        AccessControl           *a,
-       int                     nmatch,
-       regmatch_t              *matches,
+       AclRegexMatches         *matches,
        slap_dn_access          *bdn,
        struct berval           *opndn )
 {
@@ -730,35 +799,38 @@ acl_mask_dn(
 
        } else if ( bdn->a_style == ACL_STYLE_REGEX ) {
                if ( !ber_bvccmp( &bdn->a_pat, '*' ) ) {
-                       int             tmp_nmatch;
-                       regmatch_t      tmp_matches[2],
-                                       *tmp_matchesp = tmp_matches;
-
+                       AclRegexMatches tmp_matches,
+                                       *tmp_matchesp = &tmp_matches;
                        int             rc = 0;
+                       regmatch_t      *tmp_data;
+
+                       MATCHES_MEMSET( &tmp_matches );
+                       tmp_data = &tmp_matches.dn_data[0];
 
-                       switch ( a->acl_dn_style ) {
+                       if ( a->acl_attrval_style == ACL_STYLE_REGEX )
+                               tmp_matchesp = matches;
+                       else switch ( a->acl_dn_style ) {
                        case ACL_STYLE_REGEX:
                                if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
-                                       tmp_matchesp = matches;
-                                       tmp_nmatch = nmatch;
+                                       tmp_matchesp = matches; 
                                        break;
                                }
                        /* FALLTHRU: applies also to ACL_STYLE_REGEX when pattern is "*" */
 
                        case ACL_STYLE_BASE:
-                               tmp_matches[0].rm_so = 0;
-                               tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                               tmp_nmatch = 1;
+                               tmp_data[0].rm_so = 0;
+                               tmp_data[0].rm_eo = e->e_nname.bv_len;
+                               tmp_matches.dn_count = 1;
                                break;
 
                        case ACL_STYLE_ONE:
                        case ACL_STYLE_SUBTREE:
                        case ACL_STYLE_CHILDREN:
-                               tmp_matches[0].rm_so = 0;
-                               tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                               tmp_matches[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
-                               tmp_matches[1].rm_eo = e->e_nname.bv_len;
-                               tmp_nmatch = 2;
+                               tmp_data[0].rm_so = 0;
+                               tmp_data[0].rm_eo = e->e_nname.bv_len;
+                               tmp_data[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
+                               tmp_data[1].rm_eo = e->e_nname.bv_len;
+                               tmp_matches.dn_count = 2;
                                break;
 
                        default:
@@ -772,7 +844,7 @@ acl_mask_dn(
                        }
 
                        if ( !regex_matches( &bdn->a_pat, opndn->bv_val,
-                               e->e_ndn, tmp_nmatch, tmp_matchesp ) )
+                               &e->e_nname, NULL, tmp_matchesp ) )
                        {
                                return 1;
                        }
@@ -790,38 +862,42 @@ acl_mask_dn(
                        struct berval   bv;
                        char            buf[ACL_BUF_SIZE];
                        
-                       int             tmp_nmatch;
-                       regmatch_t      tmp_matches[2],
-                                       *tmp_matchesp = tmp_matches;
-
+                       AclRegexMatches tmp_matches,
+                                       *tmp_matchesp = &tmp_matches;
                        int             rc = 0;
+                       regmatch_t      *tmp_data;
+
+                       MATCHES_MEMSET( &tmp_matches );
+                       tmp_data = &tmp_matches.dn_data[0];
 
                        bv.bv_len = sizeof( buf ) - 1;
                        bv.bv_val = buf;
 
-                       switch ( a->acl_dn_style ) {
+                       /* Expand value regex */
+                       if ( a->acl_attrval_style == ACL_STYLE_REGEX )
+                               tmp_matchesp = matches;
+                       else switch ( a->acl_dn_style ) {
                        case ACL_STYLE_REGEX:
                                if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
                                        tmp_matchesp = matches;
-                                       tmp_nmatch = nmatch;
                                        break;
                                }
                        /* FALLTHRU: applies also to ACL_STYLE_REGEX when pattern is "*" */
 
                        case ACL_STYLE_BASE:
-                               tmp_matches[0].rm_so = 0;
-                               tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                               tmp_nmatch = 1;
+                               tmp_data[0].rm_so = 0;
+                               tmp_data[0].rm_eo = e->e_nname.bv_len;
+                               tmp_matches.dn_count = 1;
                                break;
 
                        case ACL_STYLE_ONE:
                        case ACL_STYLE_SUBTREE:
                        case ACL_STYLE_CHILDREN:
-                               tmp_matches[0].rm_so = 0;
-                               tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                               tmp_matches[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
-                               tmp_matches[1].rm_eo = e->e_nname.bv_len;
-                               tmp_nmatch = 2;
+                               tmp_data[0].rm_so = 0;
+                               tmp_data[0].rm_eo = e->e_nname.bv_len;
+                               tmp_data[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
+                               tmp_data[1].rm_eo = e->e_nname.bv_len;
+                               tmp_matches.dn_count = 2;
                                break;
 
                        default:
@@ -835,8 +911,8 @@ acl_mask_dn(
                        }
 
                        if ( acl_string_expand( &bv, &bdn->a_pat, 
-                                       e->e_nname.bv_val,
-                                       tmp_nmatch, tmp_matchesp ) )
+                                               &e->e_nname, 
+                                               val, tmp_matchesp ) )
                        {
                                return 1;
                        }
@@ -946,9 +1022,6 @@ acl_mask_dnattr(
        Entry                   *e,
        struct berval           *val,
        AccessControl           *a,
-       Access                  *b,
-       int                     i,
-       regmatch_t              *matches,
        int                     count,
        AccessControlState      *state,
        slap_dn_access          *bdn,
@@ -1050,10 +1123,10 @@ slap_acl_mask(
        Entry                   *e,
        AttributeDescription    *desc,
        struct berval           *val,
-       int                     nmatch,
-       regmatch_t              *matches,
+       AclRegexMatches         *matches,
        int                     count,
-       AccessControlState      *state )
+       AccessControlState      *state,
+       slap_access_t   access )
 {
        int             i;
        Access          *b;
@@ -1061,7 +1134,9 @@ slap_acl_mask(
        char            accessmaskbuf[ACCESSMASK_MAXLEN];
 #endif /* DEBUG */
        const char      *attr;
-       slap_mask_t     a2pmask = ACL_ACCESS2PRIV( *mask );
+#ifdef SLAP_DYNACL
+       slap_mask_t     a2pmask = ACL_ACCESS2PRIV( access );
+#endif /* SLAP_DYNACL */
 
        assert( a != NULL );
        assert( mask != NULL );
@@ -1106,7 +1181,7 @@ slap_acl_mask(
                         * is maintained in a_dn_pat.
                         */
 
-                       if ( acl_mask_dn( op, e, desc, val, a, nmatch, matches,
+                       if ( acl_mask_dn( op, e, val, a, matches,
                                &b->a_dn, &op->o_ndn ) )
                        {
                                continue;
@@ -1137,7 +1212,7 @@ slap_acl_mask(
                                ndn = op->o_ndn;
                        }
 
-                       if ( acl_mask_dn( op, e, desc, val, a, nmatch, matches,
+                       if ( acl_mask_dn( op, e, val, a, matches,
                                &b->a_realdn, &ndn ) )
                        {
                                continue;
@@ -1153,8 +1228,8 @@ slap_acl_mask(
 
                        if ( !ber_bvccmp( &b->a_sockurl_pat, '*' ) ) {
                                if ( b->a_sockurl_style == ACL_STYLE_REGEX) {
-                                       if (!regex_matches( &b->a_sockurl_pat, op->o_conn->c_listener_url.bv_val,
-                                                       e->e_ndn, nmatch, matches ) ) 
+                                       if ( !regex_matches( &b->a_sockurl_pat, op->o_conn->c_listener_url.bv_val,
+                                                       &e->e_nname, val, matches ) ) 
                                        {
                                                continue;
                                        }
@@ -1165,8 +1240,7 @@ slap_acl_mask(
 
                                        bv.bv_len = sizeof( buf ) - 1;
                                        bv.bv_val = buf;
-                                       if ( acl_string_expand( &bv, &b->a_sockurl_pat,
-                                                       e->e_ndn, nmatch, matches ) )
+                                       if ( acl_string_expand( &bv, &b->a_sockurl_pat, &e->e_nname, val, matches ) )
                                        {
                                                continue;
                                        }
@@ -1193,8 +1267,8 @@ slap_acl_mask(
                                b->a_domain_pat.bv_val, 0, 0 );
                        if ( !ber_bvccmp( &b->a_domain_pat, '*' ) ) {
                                if ( b->a_domain_style == ACL_STYLE_REGEX) {
-                                       if (!regex_matches( &b->a_domain_pat, op->o_conn->c_peer_domain.bv_val,
-                                                       e->e_ndn, nmatch, matches ) ) 
+                                       if ( !regex_matches( &b->a_domain_pat, op->o_conn->c_peer_domain.bv_val,
+                                                       &e->e_nname, val, matches ) ) 
                                        {
                                                continue;
                                        }
@@ -1210,8 +1284,7 @@ slap_acl_mask(
                                                bv.bv_len = sizeof(buf) - 1;
                                                bv.bv_val = buf;
 
-                                               if ( acl_string_expand(&bv, &b->a_domain_pat,
-                                                               e->e_ndn, nmatch, matches) )
+                                               if ( acl_string_expand(&bv, &b->a_domain_pat, &e->e_nname, val, matches) )
                                                {
                                                        continue;
                                                }
@@ -1248,8 +1321,8 @@ slap_acl_mask(
                                b->a_peername_pat.bv_val, 0, 0 );
                        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, nmatch, matches ) ) 
+                                       if ( !regex_matches( &b->a_peername_pat, op->o_conn->c_peer_name.bv_val,
+                                                       &e->e_nname, val, matches ) ) 
                                        {
                                                continue;
                                        }
@@ -1267,8 +1340,7 @@ slap_acl_mask(
 
                                                bv.bv_len = sizeof( buf ) - 1;
                                                bv.bv_val = buf;
-                                               if ( acl_string_expand( &bv, &b->a_peername_pat,
-                                                               e->e_ndn, nmatch, matches ) )
+                                               if ( acl_string_expand( &bv, &b->a_peername_pat, &e->e_nname, val, matches ) )
                                                {
                                                        continue;
                                                }
@@ -1401,8 +1473,8 @@ slap_acl_mask(
                                b->a_sockname_pat.bv_val, 0, 0 );
                        if ( !ber_bvccmp( &b->a_sockname_pat, '*' ) ) {
                                if ( b->a_sockname_style == ACL_STYLE_REGEX) {
-                                       if (!regex_matches( &b->a_sockname_pat, op->o_conn->c_sock_name.bv_val,
-                                                       e->e_ndn, nmatch, matches ) ) 
+                                       if ( !regex_matches( &b->a_sockname_pat, op->o_conn->c_sock_name.bv_val,
+                                                       &e->e_nname, val, matches ) ) 
                                        {
                                                continue;
                                        }
@@ -1413,8 +1485,7 @@ slap_acl_mask(
 
                                        bv.bv_len = sizeof( buf ) - 1;
                                        bv.bv_val = buf;
-                                       if ( acl_string_expand( &bv, &b->a_sockname_pat,
-                                                       e->e_ndn, nmatch, matches ) )
+                                       if ( acl_string_expand( &bv, &b->a_sockname_pat, &e->e_nname, val, matches ) )
                                        {
                                                continue;
                                        }
@@ -1432,8 +1503,8 @@ slap_acl_mask(
                }
 
                if ( b->a_dn_at != NULL ) {
-                       if ( acl_mask_dnattr( op, e, val, a, b, i,
-                                       matches, count, state,
+                       if ( acl_mask_dnattr( op, e, val, a,
+                                       count, state,
                                        &b->a_dn, &op->o_ndn ) )
                        {
                                continue;
@@ -1450,8 +1521,8 @@ slap_acl_mask(
                                ndn = op->o_ndn;
                        }
 
-                       if ( acl_mask_dnattr( op, e, val, a, b, i,
-                                       matches, count, state,
+                       if ( acl_mask_dnattr( op, e, val, a,
+                                       count, state,
                                        &b->a_realdn, &ndn ) )
                        {
                                continue;
@@ -1477,38 +1548,43 @@ slap_acl_mask(
                        /* see if asker is listed in dnattr */
                        if ( b->a_group_style == ACL_STYLE_EXPAND ) {
                                char            buf[ACL_BUF_SIZE];
-                               int             tmp_nmatch;
-                               regmatch_t      tmp_matches[2],
-                                               *tmp_matchesp = tmp_matches;
+                               AclRegexMatches tmp_matches,
+                                               *tmp_matchesp = &tmp_matches;
+                               regmatch_t      *tmp_data;
+
+                               MATCHES_MEMSET( &tmp_matches );
+                               tmp_data = &tmp_matches.dn_data[0];
 
                                bv.bv_len = sizeof(buf) - 1;
                                bv.bv_val = buf;
 
                                rc = 0;
 
-                               switch ( a->acl_dn_style ) {
+                               if ( a->acl_attrval_style == ACL_STYLE_REGEX )
+                                       tmp_matchesp = matches;
+                               else switch ( a->acl_dn_style ) {
                                case ACL_STYLE_REGEX:
                                        if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
                                                tmp_matchesp = matches;
-                                               tmp_nmatch = nmatch;
                                                break;
                                        }
 
                                /* FALLTHRU: applies also to ACL_STYLE_REGEX when pattern is "*" */
                                case ACL_STYLE_BASE:
-                                       tmp_matches[0].rm_so = 0;
-                                       tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                                       tmp_nmatch = 1;
+                                       tmp_data[0].rm_so = 0;
+                                       tmp_data[0].rm_eo = e->e_nname.bv_len;
+                                       tmp_matches.dn_count = 1;
                                        break;
 
                                case ACL_STYLE_ONE:
                                case ACL_STYLE_SUBTREE:
                                case ACL_STYLE_CHILDREN:
-                                       tmp_matches[0].rm_so = 0;
-                                       tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                                       tmp_matches[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
-                                       tmp_matches[1].rm_eo = e->e_nname.bv_len;
-                                       tmp_nmatch = 2;
+                                       tmp_data[0].rm_so = 0;
+                                       tmp_data[0].rm_eo = e->e_nname.bv_len;
+
+                                       tmp_data[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
+                                       tmp_data[1].rm_eo = e->e_nname.bv_len;
+                                       tmp_matches.dn_count = 2;
                                        break;
 
                                default:
@@ -1522,8 +1598,8 @@ slap_acl_mask(
                                }
                                
                                if ( acl_string_expand( &bv, &b->a_group_pat,
-                                               e->e_nname.bv_val,
-                                               tmp_nmatch, tmp_matchesp ) )
+                                               &e->e_nname, val,
+                                               tmp_matchesp ) )
                                {
                                        continue;
                                }
@@ -1561,39 +1637,42 @@ slap_acl_mask(
                                b->a_set_pat.bv_val, 0, 0 );
 
                        if ( b->a_set_style == ACL_STYLE_EXPAND ) {
-                               int             tmp_nmatch;
-                               regmatch_t      tmp_matches[2],
-                                               *tmp_matchesp = tmp_matches;
+                               AclRegexMatches tmp_matches,
+                                               *tmp_matchesp = &tmp_matches;
                                int             rc = 0;
+                               regmatch_t      *tmp_data;
+
+                               MATCHES_MEMSET( &tmp_matches );
+                               tmp_data = &tmp_matches.dn_data[0];
 
                                bv.bv_len = sizeof( buf ) - 1;
                                bv.bv_val = buf;
 
                                rc = 0;
 
-                               switch ( a->acl_dn_style ) {
+                               if ( a->acl_attrval_style == ACL_STYLE_REGEX )
+                                       tmp_matchesp = matches;
+                               else switch ( a->acl_dn_style ) {
                                case ACL_STYLE_REGEX:
                                        if ( !BER_BVISNULL( &a->acl_dn_pat ) ) {
                                                tmp_matchesp = matches;
-                                               tmp_nmatch = nmatch;
                                                break;
                                        }
 
                                /* FALLTHRU: applies also to ACL_STYLE_REGEX when pattern is "*" */
                                case ACL_STYLE_BASE:
-                                       tmp_matches[0].rm_so = 0;
-                                       tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                                       tmp_nmatch = 1;
+                                       tmp_data[0].rm_so = 0;
+                                       tmp_data[0].rm_eo = e->e_nname.bv_len;
+                                       tmp_matches.dn_count = 1;
                                        break;
 
                                case ACL_STYLE_ONE:
                                case ACL_STYLE_SUBTREE:
                                case ACL_STYLE_CHILDREN:
-                                       tmp_matches[0].rm_so = 0;
-                                       tmp_matches[0].rm_eo = e->e_nname.bv_len;
-                                       tmp_matches[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
-                                       tmp_matches[1].rm_eo = e->e_nname.bv_len;
-                                       tmp_nmatch = 2;
+                                       tmp_data[0].rm_so = 0;
+                                       tmp_data[0].rm_eo = e->e_nname.bv_len;
+                                       tmp_data[1].rm_so = e->e_nname.bv_len - a->acl_dn_pat.bv_len;
+                                       tmp_data[1].rm_eo = e->e_nname.bv_len; tmp_matches.dn_count = 2;
                                        break;
 
                                default:
@@ -1607,8 +1686,8 @@ slap_acl_mask(
                                }
                                
                                if ( acl_string_expand( &bv, &b->a_set_pat,
-                                               e->e_nname.bv_val,
-                                               tmp_nmatch, tmp_matchesp ) )
+                                               &e->e_nname, val,
+                                               tmp_matchesp ) )
                                {
                                        continue;
                                }
@@ -1720,8 +1799,14 @@ slap_acl_mask(
                                Debug( LDAP_DEBUG_ACL, "    <= check a_dynacl: %s\n",
                                        da->da_name, 0, 0 );
 
+                               /*
+                                * XXXmanu Only DN matches are supplied 
+                                * sending attribute values matches require
+                                * an API update
+                                */
                                (void)da->da_mask( da->da_private, op, e, desc,
-                                       val, nmatch, matches, &grant, &deny );
+                                       val, matches->dn_count, matches->dn_data, 
+                                       &grant, &deny ); 
 
                                tgrant |= grant;
                                tdeny |= deny;
@@ -1790,8 +1875,6 @@ slap_acl_mask(
                        *mask = modmask;
                }
 
-               a2pmask = *mask;
-
                Debug( LDAP_DEBUG_ACL,
                        "<= acl_mask: [%d] mask: %s\n",
                        i, accessmask2str(*mask, accessmaskbuf, 1), 0 );
@@ -1843,6 +1926,10 @@ acl_check_modlist(
        }
        assert( be != NULL );
 
+       /* If ADD attribute checking is not enabled, just allow it */
+       if ( op->o_tag == LDAP_REQ_ADD && !SLAP_DBACL_ADD( be ))
+               return 1;
+
        /* short circuit root database access */
        if ( be_isroot( op ) ) {
                Debug( LDAP_DEBUG_ACL,
@@ -1852,7 +1939,7 @@ acl_check_modlist(
        }
 
        /* use backend default access if no backend acls */
-       if( op->o_bd != NULL && op->o_bd->be_acl == NULL ) {
+       if( op->o_bd != NULL && op->o_bd->be_acl == NULL && frontendDB->be_acl == NULL ) {
                Debug( LDAP_DEBUG_ACL,
                        "=> access_allowed: backend default %s access %s to \"%s\"\n",
                        access2str( ACL_WRITE ),
@@ -2114,7 +2201,7 @@ acl_set_gather( SetCookie *cookie, struct berval *name, AttributeDescription *de
        if ( rc != LDAP_SUCCESS ) {
                Debug( LDAP_DEBUG_TRACE,
                        "%s acl_set_gather: DN=\"%s\" normalize failed\n",
-                       cp->asc_op->o_log_prefix, op2.o_req_dn.bv_val, 0 );
+                       cp->asc_op->o_log_prefix, ludp->lud_dn, 0 );
 
                goto url_done;
        }
@@ -2211,7 +2298,7 @@ acl_set_gather( SetCookie *cookie, struct berval *name, AttributeDescription *de
 
 url_done:;
        if ( op2.ors_filter && op2.ors_filter != slap_filter_objectClass_pres ) {
-               filter_free_x( cp->asc_op, op2.ors_filter );
+               filter_free_x( cp->asc_op, op2.ors_filter, 1 );
        }
        if ( !BER_BVISNULL( &op2.o_req_ndn ) ) {
                slap_sl_free( op2.o_req_ndn.bv_val, cp->asc_op->o_tmpmemctx );
@@ -2275,7 +2362,7 @@ acl_match_set (
        AclSetCookie    cookie;
 
        if ( default_set_attribute == NULL ) {
-               ber_dupbv_x( &set, subj, op->o_tmpmemctx );
+               set = *subj;
 
        } else {
                struct berval           subjdn, ndn = BER_BVNULL;
@@ -2324,7 +2411,9 @@ acl_match_set (
                        acl_set_gather,
                        (SetCookie *)&cookie, &set,
                        &op->o_ndn, &e->e_nname, NULL ) > 0 );
-               slap_sl_free( set.bv_val, op->o_tmpmemctx );
+               if ( set.bv_val != subj->bv_val ) {
+                       slap_sl_free( set.bv_val, op->o_tmpmemctx );
+               }
        }
 
        return(rc);
@@ -2420,20 +2509,22 @@ int
 acl_string_expand(
        struct berval   *bv,
        struct berval   *pat,
-       char            *match,
-       int             nmatch,
-       regmatch_t      *matches)
+       struct berval   *dn_matches,
+       struct berval   *val_matches,
+       AclRegexMatches *matches)
 {
        ber_len_t       size;
        char   *sp;
        char   *dp;
        int     flag;
+       enum { DN_FLAG, VAL_FLAG } tflag;
 
        size = 0;
        bv->bv_val[0] = '\0';
        bv->bv_len--; /* leave space for lone $ */
 
        flag = 0;
+       tflag = DN_FLAG;
        for ( dp = bv->bv_val, sp = pat->bv_val; size < bv->bv_len &&
                sp < pat->bv_val + pat->bv_len ; sp++ )
        {
@@ -2443,11 +2534,21 @@ acl_string_expand(
                                *dp++ = '$';
                                size++;
                                flag = 0;
+                               tflag = DN_FLAG;
+
+                       } else if ( flag == 2 && *sp == 'v' /*'}'*/) {
+                               tflag = VAL_FLAG;
+
+                       } else if ( flag == 2 && *sp == 'd' /*'}'*/) {
+                               tflag = DN_FLAG;
 
                        } else if ( flag == 1 && *sp == '{' /*'}'*/) {
                                flag = 2;
 
                        } else if ( *sp >= '0' && *sp <= '9' ) {
+                               int     nm;
+                               regmatch_t *m;
+                               char *data;
                                int     n;
                                int     i;
                                int     l;
@@ -2467,20 +2568,40 @@ acl_string_expand(
                                        }
                                }
 
-                               if ( n >= nmatch ) {
+                               switch (tflag) {
+                               case DN_FLAG:
+                                       nm = matches->dn_count;
+                                       m = matches->dn_data;
+                                       data = dn_matches ? dn_matches->bv_val : NULL;
+                                       break;
+                               case VAL_FLAG:
+                                       nm = matches->val_count;
+                                       m = matches->val_data;
+                                       data = val_matches ? val_matches->bv_val : NULL;
+                                       break;
+                               default:
+                                       assert( 0 );
+                               }
+                               if ( n >= nm ) {
+                                       /* FIXME: error */
+                                       return 1;
+                               }
+                               if ( data == NULL ) {
                                        /* FIXME: error */
                                        return 1;
                                }
                                
                                *dp = '\0';
-                               i = matches[n].rm_so;
-                               l = matches[n].rm_eo; 
+                               i = m[n].rm_so;
+                               l = m[n].rm_eo; 
+                                       
                                for ( ; size < bv->bv_len && i < l; size++, i++ ) {
-                                       *dp++ = match[i];
+                                       *dp++ = data[i];
                                }
                                *dp = '\0';
 
                                flag = 0;
+                               tflag = DN_FLAG;
                        }
                } else {
                        if (*sp == '$') {
@@ -2501,8 +2622,8 @@ acl_string_expand(
        *dp = '\0';
        bv->bv_len = size;
 
-       Debug( LDAP_DEBUG_TRACE, "=> acl_string_expand: pattern:  %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
-       Debug( LDAP_DEBUG_TRACE, "=> acl_string_expand: expanded: %s\n", bv->bv_val, 0, 0 );
+       Debug( LDAP_DEBUG_ACL, "=> acl_string_expand: pattern:  %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
+       Debug( LDAP_DEBUG_ACL, "=> acl_string_expand: expanded: %s\n", bv->bv_val, 0, 0 );
 
        return 0;
 }
@@ -2511,9 +2632,9 @@ static int
 regex_matches(
        struct berval   *pat,           /* pattern to expand and match against */
        char            *str,           /* string to match against pattern */
-       char            *buf,           /* buffer with $N expansion variables */
-       int             nmatch, /* size of the matches array */
-       regmatch_t      *matches        /* offsets in buffer for $N expansion variables */
+       struct berval   *dn_matches,    /* buffer with $N expansion variables from DN */
+       struct berval   *val_matches,   /* buffer with $N expansion variables from val */
+       AclRegexMatches *matches        /* offsets in buffer for $N expansion variables */
 )
 {
        regex_t re;
@@ -2528,7 +2649,7 @@ regex_matches(
                str = "";
        };
 
-       acl_string_expand( &bv, pat, buf, nmatch, matches );
+       acl_string_expand( &bv, pat, dn_matches, val_matches, matches );
        rc = regcomp( &re, newbuf, REG_EXTENDED|REG_ICASE );
        if ( rc ) {
                char error[ACL_BUF_SIZE];