/* acl.c - routines to parse and check acl's */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2004 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
*/
#include "portable.h"
#include "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 */
/*
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),
AccessControl *ac, int *count,
Operation *op, Entry *e,
AttributeDescription *desc,
- int nmatches, regmatch_t *matches );
+ struct berval *val,
+ int nmatches, regmatch_t *matches,
+ AccessControlState *state );
static slap_control_t acl_mask(
AccessControl *ac, slap_mask_t *mask,
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 );
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;
}
goto done;
}
-#ifdef LDAP_SLAPI
- ret = slapi_x_access_allowed( op, e, desc, val, access, state );
- if ( ret == 0 ) {
- /* ACL plugin denied access */
- goto done;
- }
-#endif /* LDAP_SLAPI */
-
be = op->o_bd;
if ( be == NULL ) {
be = &backends[0];
}
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 ) ) {
#ifdef NEW_LOGGING
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;
a = NULL;
ACL_INIT(mask);
count = 0;
memset(matches, '\0', sizeof(matches));
}
- while((a = acl_get( a, &count, op, e, desc,
- MAXREMATCHES, matches )) != NULL)
+ while((a = acl_get( a, &count, op, e, desc, val,
+ MAXREMATCHES, matches, state )) != NULL)
{
int i;
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;
}
}
done:
if( state != NULL ) {
/* If not value-dependent, save ACL in case of more attrs */
- if ( !(state->as_recorded & ACL_STATE_RECORDED_VD) )
+ if ( !(state->as_recorded & ACL_STATE_RECORDED_VD) ) {
state->as_vi_acl = a;
+ state->as_result = ret;
+ }
state->as_recorded |= ACL_STATE_RECORDED;
- state->as_result = ret;
}
if (be_null) op->o_bd = NULL;
return ret;
}
+
/*
* acl_get - return the acl applicable to entry e, attribute
* attr. the acl returned is suitable for use in subsequent calls to
Operation *op,
Entry *e,
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 );
} else {
a = op->o_bd->be_acl;
}
+ prev = NULL;
assert( a != NULL );
} else {
+ prev = a;
a = a->acl_next;
}
#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 ) {
#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 ( attr == NULL || 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
accessmask2str( *mask, accessmaskbuf ) );
#endif
+
if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD )
&& state->as_vd_acl == a )
{
{
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;
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;
+ }
}
}
}
{
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;
* 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;
{
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 ) ) {
"<= acl_access_allowed: granted to database root\n",
0, 0, 0 );
#endif
- return 1;
+ goto done;
}
/* use backend default access if no backend acls */
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 ) {
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 ( ! access_allowed( op, e,
mlist->sml_desc, bv, ACL_WRITE, &state ) )
{
- return( 0 );
+ ret = 0;
+ goto done;
}
}
break;
if ( ! access_allowed( op, e,
mlist->sml_desc, NULL, ACL_WRITE, NULL ) )
{
- return( 0 );
+ ret = 0;
+ goto done;
}
break;
}
if ( ! access_allowed( op, e,
mlist->sml_desc, bv, ACL_WRITE, &state ) )
{
- return( 0 );
+ ret = 0;
+ goto done;
}
}
break;
default:
assert( 0 );
- return( 0 );
+ /* not reached */
+ ret = 0;
+ break;
}
}
- return( 1 );
+done:
+ if (be_null) op->o_bd = NULL;
+ return( ret );
}
static int
projects / openldap / blobdiff