]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/acl.c
fix ACL who logging
[openldap] / servers / slapd / acl.c
index 57f740af989a171e22a7652d03ece9b8db626ff0..3484df46d47b8d36693d993c10a2f88c16682114 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2003 The OpenLDAP Foundation.
+ * Copyright 1998-2005 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 #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 */
 
 /*
@@ -58,11 +62,18 @@ static struct berval
        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_role_attr        = BER_BVC(SLAPD_ROLE_ATTR),
+       aci_bv_set_attr         = BER_BVC(SLAPD_ACI_SET_ATTR);
 
 
 static AccessControl * acl_get(
@@ -70,7 +81,8 @@ static AccessControl * acl_get(
        Operation *op, Entry *e,
        AttributeDescription *desc,
        struct berval *val,
-       int nmatches, regmatch_t *matches );
+       int nmatches, regmatch_t *matches,
+       AccessControlState *state );
 
 static slap_control_t acl_mask(
        AccessControl *ac, slap_mask_t *mask,
@@ -146,7 +158,6 @@ access_allowed(
        const char *attr;
        regmatch_t matches[MAXREMATCHES];
        int        st_same_attr = 0;
-       int        st_initialized = 0;
        static AccessControlState state_init = ACL_STATE_INIT;
 
        assert( e != NULL );
@@ -163,21 +174,24 @@ access_allowed(
                access = ACL_AUTH;
        }
 
-       if( state && state->as_recorded && state->as_vd_ad==desc) { 
-               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;
+       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;
                }
-               st_same_attr = 1;
-       }
 
-       if( state ) {
                state->as_vd_ad=desc;
        }
 
@@ -196,14 +210,6 @@ access_allowed(
                goto done;
        }
 
-#ifdef LDAP_SLAPI
-       if ( op->o_pb && 
-               !slapi_int_access_allowed( op, e, desc, val, access, state )) {
-               /* ACL plugin denied access */
-               goto done;
-       }
-#endif /* LDAP_SLAPI */
-
        be = op->o_bd;
        if ( be == NULL ) {
                be = &backends[0];
@@ -212,8 +218,18 @@ access_allowed(
        }
        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, INFO, 
                        "access_allowed: conn %lu root access granted\n", 
@@ -293,10 +309,12 @@ access_allowed(
                assert( state->as_vd_acl != NULL );
 
                a = state->as_vd_acl;
-               mask = state->as_vd_acl_mask;
                count = state->as_vd_acl_count;
-               AC_MEMCPY( matches, state->as_vd_acl_matches, sizeof(matches) );
-               goto vd_access;
+               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;
@@ -307,7 +325,7 @@ access_allowed(
        }
 
        while((a = acl_get( a, &count, op, e, desc, val,
-               MAXREMATCHES, matches )) != NULL)
+               MAXREMATCHES, matches, state )) != NULL)
        {
                int i;
 
@@ -338,11 +356,8 @@ access_allowed(
                                Debug( LDAP_DEBUG_ACL, "access_allowed: result from state (%s)\n", attr, 0, 0 );
                                ret = state->as_result;
                                goto done;
-                       } else if (!st_initialized) {
+                       } else {
                                Debug( LDAP_DEBUG_ACL, "access_allowed: no res from state (%s)\n", attr, 0, 0);
-                           *state = state_init;
-                               state->as_vd_ad=desc;
-                               st_initialized=1;
                        }
                }
 
@@ -409,6 +424,7 @@ done:
        return ret;
 }
 
+
 /*
  * acl_get - return the acl applicable to entry e, attribute
  * attr.  the acl returned is suitable for use in subsequent calls to
@@ -424,10 +440,12 @@ acl_get(
        AttributeDescription *desc,
        struct berval   *val,
        int                     nmatch,
-       regmatch_t      *matches )
+       regmatch_t      *matches,
+       AccessControlState *state )
 {
        const char *attr;
        int dnlen, patlen;
+       AccessControl *prev;
 
        assert( e != NULL );
        assert( count != NULL );
@@ -443,10 +461,12 @@ acl_get(
                } else {
                        a = op->o_bd->be_acl;
                }
+               prev = NULL;
 
                assert( a != NULL );
 
        } else {
+               prev = a;
                a = a->acl_next;
        }
 
@@ -487,16 +507,19 @@ 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] ) )
-                                               continue;
+                                       if ( patlen > 0 ) {
+                                               if ( !DN_SEPARATOR( e->e_ndn[dnlen - patlen - 1] ) )
+                                                       continue;
+                                               sep = 1;
+                                       }
 
                                        rdnlen = dn_rdnlen( NULL, &e->e_nname );
-                                       if ( rdnlen != dnlen - patlen - 1 )
+                                       if ( rdnlen != dnlen - patlen - sep )
                                                continue;
 
                                } else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
@@ -523,6 +546,99 @@ acl_get(
 #endif
                }
 
+               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, DETAIL1, 
+                                       "acl_get: valpat %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
+#else
+                               Debug( LDAP_DEBUG_ACL,
+                                       "acl_get: valpat %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
+#endif
+                               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, DETAIL1, 
+                                       "acl_get: val %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
+#else
+                               Debug( LDAP_DEBUG_ACL,
+                                       "acl_get: val %s\n",
+                                       a->acl_attrval.bv_val, 0, 0 );
+#endif
+       
+                               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;
+                               }
+                       }
+               }
+
                if ( a->acl_filter != NULL ) {
                        ber_int_t rc = test_filter( NULL, e, a->acl_filter );
                        if ( rc != LDAP_COMPARE_TRUE ) {
@@ -532,25 +648,12 @@ acl_get(
 
 #ifdef NEW_LOGGING
                LDAP_LOG( ACL, DETAIL1, 
-                       "acl_get: [%d] check attr %s\n", *count, attr ,0 );
+                       "acl_get: [%d] attr %s\n", *count, attr ,0 );
 #else
-               Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] check attr %s\n",
+               Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] attr %s\n",
                       *count, attr, 0);
 #endif
-               if ( a->acl_attrs == NULL ||
-                       ad_inlist( desc, a->acl_attrs ) )
-               {
-#ifdef NEW_LOGGING
-                       LDAP_LOG( ACL, DETAIL1, 
-                               "acl_get:  [%d] acl %s attr: %s\n", *count, e->e_dn, attr );
-#else
-                       Debug( LDAP_DEBUG_ACL,
-                               "<= acl_get: [%d] acl %s attr: %s\n",
-                               *count, e->e_dn, attr );
-#endif
-                       return a;
-               }
-               matches[0].rm_so = matches[0].rm_eo = -1;
+               return a;
        }
 
 #ifdef NEW_LOGGING
@@ -634,47 +737,6 @@ acl_mask(
                accessmask2str( *mask, accessmaskbuf ) );
 #endif
 
-       /* Is this ACL only for a specific value? */
-       if ( a->acl_attrval.bv_len ) {
-               if ( state && !state->as_vd_acl ) {
-                       state->as_vd_acl = a;
-                       state->as_vd_access = a->acl_access;
-                       state->as_vd_access_count = 1;
-               }
-               if ( val == NULL ) {
-                       return ACL_BREAK;
-               }
-               if ( a->acl_attrval_style == ACL_STYLE_REGEX ) {
-#ifdef NEW_LOGGING
-                       LDAP_LOG( ACL, DETAIL1, 
-                               "acl_get: valpat %s\n",
-                               a->acl_attrval.bv_val, 0, 0 );
-#else
-                       Debug( LDAP_DEBUG_ACL,
-                               "acl_get: valpat %s\n",
-                               a->acl_attrval.bv_val, 0, 0 );
-#endif
-                       if (regexec(&a->acl_attrval_re, val->bv_val, 0, NULL, 0))
-                               return ACL_BREAK;
-               } else {
-                       int match = 0;
-                       const char *text;
-#ifdef NEW_LOGGING
-                       LDAP_LOG( ACL, DETAIL1, 
-                               "acl_get: val %s\n",
-                               a->acl_attrval.bv_val, 0, 0 );
-#else
-                       Debug( LDAP_DEBUG_ACL,
-                               "acl_get: val %s\n",
-                               a->acl_attrval.bv_val, 0, 0 );
-#endif
-                       if (value_match( &match, desc,
-                               desc->ad_type->sat_equality, 0,
-                               val, &a->acl_attrval, &text ) != LDAP_SUCCESS ||
-                                       match )
-                               return ACL_BREAK;
-               }
-       }
 
        if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD )
                && state->as_vd_acl == a )
@@ -837,6 +899,19 @@ dn_match_cleanup:;
                                        {
                                                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 ( ber_bvstrcasecmp( &b->a_sockurl_pat, &op->o_conn->c_listener_url ) != 0 )
                                                continue;
@@ -914,15 +989,99 @@ dn_match_cleanup:;
                                b->a_peername_pat.bv_val, 0, 0 );
 #endif
                        if ( !ber_bvccmp( &b->a_peername_pat, '*' ) ) {
-                               if ( b->a_peername_style == ACL_STYLE_REGEX) {
+                               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 ( ber_bvstrcasecmp( &b->a_peername_pat, &op->o_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;
+                                       }
                                }
                        }
                }
@@ -946,6 +1105,19 @@ dn_match_cleanup:;
                                        {
                                                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 ( ber_bvstrcasecmp( &b->a_sockname_pat, &op->o_conn->c_sock_name ) != 0 )
                                                continue;
@@ -1039,19 +1211,22 @@ dn_match_cleanup:;
 
                if ( b->a_group_pat.bv_len ) {
                        struct berval bv;
-                       struct berval ndn = { 0, NULL };
+                       struct berval ndn = BER_BVNULL;
                        int rc;
 
                        if ( op->o_ndn.bv_len == 0 ) {
                                continue;
                        }
 
+                       Debug( LDAP_DEBUG_ACL, "<= check a_group_pat: %s\n",
+                               b->a_group_pat.bv_val, 0, 0 );
+
                        /* 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 ) {
+                       if ( b->a_group_style == ACL_STYLE_EXPAND ) {
                                char buf[ACL_BUF_SIZE];
                                bv.bv_len = sizeof(buf) - 1;
                                bv.bv_val = buf; 
@@ -1079,16 +1254,21 @@ dn_match_cleanup:;
                }
 
                if ( b->a_set_pat.bv_len != 0 ) {
-                       struct berval bv;
-                       char buf[ACL_BUF_SIZE];
-                       if( b->a_set_style == ACL_STYLE_REGEX ){
+                       struct berval   bv;
+                       char    buf[ACL_BUF_SIZE];
+
+                       Debug( LDAP_DEBUG_ACL, "<= check a_set_pat: %s\n",
+                               b->a_set_pat.bv_val, 0, 0 );
+
+                       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{
+                       } else {
                                bv = b->a_set_pat;
                        }
-                       if (aci_match_set( &bv, op, e, 0 ) == 0) {
+
+                       if ( aci_match_set( &bv, op, e, 0 ) == 0)  {
                                continue;
                        }
                }
@@ -1164,6 +1344,9 @@ dn_match_cleanup:;
                        BerVarray bvals = NULL;
                        int ret,stop;
 
+                       Debug( LDAP_DEBUG_ACL, "    <= check a_aci_at: %s\n",
+                               b->a_aci_at->ad_cname.bv_val, 0, 0 );
+
                        /* 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.
@@ -1187,7 +1370,11 @@ dn_match_cleanup:;
                        /* get the aci attribute */
                        at = attr_find( e->e_attrs, b->a_aci_at );
                        if ( at != NULL ) {
+#if 0
+                               /* FIXME: this breaks acl caching;
+                                * see also ACL_RECORD_VALUE_STATE below */
                                ACL_RECORD_VALUE_STATE;
+#endif
                                /* the aci is an multi-valued attribute.  The
                                * rights are determined by OR'ing the individual
                                * rights given by the acis.
@@ -1216,47 +1403,56 @@ dn_match_cleanup:;
                                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);
+                                       ret = backend_attribute(op, NULL, &parent_ndn, b->a_aci_at, &bvals, ACL_AUTH);
                                        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);
+                                       case LDAP_SUCCESS :
+                                               stop = 0;
+                                               if (!bvals){
+                                                       break;
+                                               }
+
+                                               for( i = 0; bvals[i].bv_val != NULL; i++){
+#if 0
+                                                       /* FIXME: this breaks acl caching;
+                                                        * see also ACL_RECORD_VALUE_STATE above */
+                                                       ACL_RECORD_VALUE_STATE;
+#endif
+                                                       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;
                                                                }
                                                        }
-                                                       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;
+                                                       Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n", 
+                                                               accessmask2str(tgrant,accessmaskbuf),
+                                                               accessmask2str(tdeny, accessmaskbuf1), 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){
+                                       if (stop){
                                                break;
                                        }
                                        dnParent(&old_parent_ndn, &parent_ndn);
@@ -1387,11 +1583,20 @@ acl_check_modlist(
 {
        struct berval *bv;
        AccessControlState state = ACL_STATE_INIT;
+       Backend *be;
+       int be_null = 0;
+       int ret = 1; /* default is access allowed */
 
-       assert( op->o_bd != NULL );
+       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( op->o_bd, &op->o_ndn ) ) {
+       if ( be_isroot( op ) ) {
 #ifdef NEW_LOGGING
                LDAP_LOG( ACL, DETAIL1, 
                           "acl_check_modlist: conn %lu  access granted to root user\n",
@@ -1401,7 +1606,7 @@ acl_check_modlist(
                        "<= acl_access_allowed: granted to database root\n",
                    0, 0, 0 );
 #endif
-               return 1;
+               goto done;
        }
 
        /* use backend default access if no backend acls */
@@ -1418,26 +1623,8 @@ acl_check_modlist(
                        access2str( ACL_WRITE ),
                        op->o_bd->be_dfltaccess >= ACL_WRITE ? "granted" : "denied", op->o_dn.bv_val );
 #endif
-               return op->o_bd->be_dfltaccess >= ACL_WRITE;
-
-#ifdef notdef
-       /* op->o_bd is always non-NULL */
-       /* use global default access if no global acls */
-       } else if ( op->o_bd == NULL && global_acl == NULL ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG( ACL, DETAIL1, 
-                       "acl_check_modlist: global default %s access %s to \"%s\"\n",
-                  access2str( ACL_WRITE ),
-                  global_default_access >= ACL_WRITE ? "granted" : "denied", 
-                  op->o_dn  );
-#else
-               Debug( LDAP_DEBUG_ACL,
-                       "=> access_allowed: global 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;
-#endif
+               ret = (op->o_bd->be_dfltaccess >= ACL_WRITE);
+               goto done;
        }
 
        for ( ; mlist != NULL; mlist = mlist->sml_next ) {
@@ -1469,15 +1656,16 @@ acl_check_modlist(
                        if ( ! access_allowed( op, e,
                                mlist->sml_desc, NULL, ACL_WRITE, &state ) )
                        {
-                               return( 0 );
+                               ret = 0;
+                               goto done;
                        }
 
-                       if ( mlist->sml_bvalues == NULL ) break;
+                       if ( mlist->sml_values == NULL ) break;
 
                        /* fall thru to check value to add */
 
                case LDAP_MOD_ADD:
-                       assert( mlist->sml_bvalues != NULL );
+                       assert( mlist->sml_values != NULL );
 
                        for ( bv = mlist->sml_nvalues
                                        ? mlist->sml_nvalues : mlist->sml_values;
@@ -1486,17 +1674,19 @@ acl_check_modlist(
                                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 ( mlist->sml_values == NULL ) {
                                if ( ! access_allowed( op, e,
                                        mlist->sml_desc, NULL, ACL_WRITE, NULL ) )
                                {
-                                       return( 0 );
+                                       ret = 0;
+                                       goto done;
                                }
                                break;
                        }
@@ -1507,7 +1697,8 @@ acl_check_modlist(
                                if ( ! access_allowed( op, e,
                                        mlist->sml_desc, bv, ACL_WRITE, &state ) )
                                {
-                                       return( 0 );
+                                       ret = 0;
+                                       goto done;
                                }
                        }
                        break;
@@ -1518,11 +1709,15 @@ acl_check_modlist(
 
                default:
                        assert( 0 );
-                       return( 0 );
+                       /* not reached */
+                       ret = 0;
+                       break;
                }
        }
 
-       return( 1 );
+done:
+       if (be_null) op->o_bd = NULL;
+       return( ret );
 }
 
 static int
@@ -1536,8 +1731,7 @@ 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;
@@ -1581,7 +1775,7 @@ aci_set_gather (SetCookie *cookie, struct berval *name, struct berval *attr)
                AttributeDescription *desc = NULL;
                if (slap_bv2ad(attr, &desc, &text) == LDAP_SUCCESS) {
                        backend_attribute(cp->op,
-                               cp->e, &ndn, desc, &bvals);
+                               cp->e, &ndn, desc, &bvals, ACL_NONE);
                }
                sl_free(ndn.bv_val, cp->op->o_tmpmemctx);
        }
@@ -1596,14 +1790,15 @@ aci_match_set (
        int setref
 )
 {
-       struct berval set = { 0, NULL };
+       struct berval set = BER_BVNULL;
        int rc = 0;
        AciSetCookie cookie;
 
        if (setref == 0) {
                ber_dupbv_x( &set, subj, op->o_tmpmemctx );
+
        } else {
-               struct berval subjdn, ndn = { 0, NULL };
+               struct berval subjdn, ndn = BER_BVNULL;
                struct berval setat;
                BerVarray bvals;
                const char *text;
@@ -1615,34 +1810,28 @@ aci_match_set (
                }
 
                if ( aci_get_part(subj, 1, '/', &setat) < 0 ) {
-                       setat.bv_val = SLAPD_ACI_SET_ATTR;
-                       setat.bv_len = sizeof(SLAPD_ACI_SET_ATTR)-1;
+                       setat = aci_bv_set_attr;
                }
 
-               if ( setat.bv_val != NULL ) {
-                       /*
-                        * NOTE: dnNormalize honors the ber_len field
-                        * as the length of the dn to be normalized
-                        */
-                       if ( dnNormalize(0, NULL, NULL, &subjdn, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS
-                               && slap_bv2ad(&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, op->o_tmpmemctx) == LDAP_SUCCESS )
                        {
-                               backend_attribute(op, e,
-                                       &ndn, desc, &bvals);
-                               if ( bvals != NULL ) {
-                                       if ( 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, op->o_tmpmemctx);
+                               backend_attribute( op, e, &ndn, desc, &bvals, ACL_NONE );
+                               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, op->o_tmpmemctx);
+                               sl_free(ndn.bv_val, op->o_tmpmemctx);
                        }
-                       if (ndn.bv_val)
-                               free(ndn.bv_val);
                }
        }
 
@@ -1653,6 +1842,7 @@ aci_match_set (
                        &op->o_ndn, &e->e_nname, NULL) > 0);
                sl_free(set.bv_val, op->o_tmpmemctx);
        }
+
        return(rc);
 }
 
@@ -1925,8 +2115,27 @@ aci_mask(
        if (aci_get_part(aci, 3, '#', &bv) < 0)
                return(0);
 
+       /* see if we have a public (i.e. anonymous) access */
+       if (ber_bvstrcasecmp( &aci_bv_public, &bv ) == 0) {
+               return(1);
+       }
+
+       /* otherwise require an identity */
+       if ( BER_BVISNULL( &op->o_ndn ) || BER_BVISEMPTY( &op->o_ndn ) ) {
+               return 0;
+       }
+
+       /* NOTE: this may fail if a DN contains a valid '#' (unescaped);
+        * just grab all the berval up to its end (ITS#3303).
+        * NOTE: the problem could be solved by providing the DN with
+        * the embedded '#' encoded as hexpairs: "cn=Foo#Bar" would 
+        * become "cn=Foo\23Bar" and be safely used by aci_mask(). */
+#if 0
        if (aci_get_part(aci, 4, '#', &sdn) < 0)
                return(0);
+#endif
+       sdn.bv_val = bv.bv_val + bv.bv_len + STRLENOF( "#" );
+       sdn.bv_len = aci->bv_len - ( sdn.bv_val - aci->bv_val );
 
        if (ber_bvstrcasecmp( &aci_bv_access_id, &bv ) == 0) {
                struct berval ndn;
@@ -1938,9 +2147,6 @@ aci_mask(
                }
                return (rc);
 
-       } else if (ber_bvstrcasecmp( &aci_bv_public, &bv ) == 0) {
-               return(1);
-
        } else if (ber_bvstrcasecmp( &aci_bv_self, &bv ) == 0) {
                if (dn_match(&op->o_ndn, &e->e_nname))
                        return(1);