/* 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 */
/*
*/
static struct berval
aci_bv_entry = BER_BVC("entry"),
+ aci_bv_children = BER_BVC("children"),
aci_bv_br_entry = BER_BVC("[entry]"),
aci_bv_br_all = BER_BVC("[all]"),
aci_bv_access_id = BER_BVC("access-id"),
AccessControl *ac, int *count,
Operation *op, Entry *e,
AttributeDescription *desc,
+ struct berval *val,
int nmatches, regmatch_t *matches );
static slap_control_t acl_mask(
struct berval *aci,
regmatch_t *matches,
slap_access_t *grant,
- slap_access_t *deny );
+ slap_access_t *deny,
+ struct berval *scope);
#endif
static int regex_matches(
assert( attr != NULL );
- if( op && op->o_is_auth_check && (access == ACL_SEARCH || access == ACL_READ)) {
+ if( op && op->o_is_auth_check &&
+ ( access == ACL_SEARCH || access == ACL_READ ))
+ {
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;
}
st_same_attr = 1;
- } if (state) {
+ }
+
+ if( state ) {
state->as_vd_ad=desc;
}
}
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
"access_allowed: backend default %s access %s to \"%s\"\n",
access2str( access ),
be->be_dfltaccess >= access ? "granted" : "denied",
- op->o_dn.bv_val );
+ op->o_dn.bv_val ? op->o_dn.bv_val : "(anonymous)" );
#else
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: backend default %s access %s to \"%s\"\n",
access2str( access ),
- be->be_dfltaccess >= access ? "granted" : "denied", op->o_dn.bv_val );
+ be->be_dfltaccess >= access ? "granted" : "denied",
+ op->o_dn.bv_val ? op->o_dn.bv_val : "(anonymous)" );
#endif
ret = be->be_dfltaccess >= access;
goto done;
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) );
+ 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,
+ while((a = acl_get( a, &count, op, e, desc, val,
MAXREMATCHES, matches )) != NULL)
{
int i;
if (state) {
if (state->as_vi_acl == a && (state->as_recorded & ACL_STATE_RECORDED_NV)) {
Debug( LDAP_DEBUG_ACL, "access_allowed: result from state (%s)\n", attr, 0, 0 );
- return state->as_result;
+ ret = state->as_result;
+ goto done;
} else if (!st_initialized) {
Debug( LDAP_DEBUG_ACL, "access_allowed: no res from state (%s)\n", attr, 0, 0);
*state = state_init;
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;
Operation *op,
Entry *e,
AttributeDescription *desc,
+ struct berval *val,
int nmatch,
regmatch_t *matches )
{
Debug( LDAP_DEBUG_ACL, "=> acl_get: [%d] check attr %s\n",
*count, attr, 0);
#endif
- if ( attr == NULL || a->acl_attrs == NULL ||
+ if ( a->acl_attrs == NULL ||
ad_inlist( desc, a->acl_attrs ) )
{
#ifdef NEW_LOGGING
Access *b;
#ifdef LDAP_DEBUG
char accessmaskbuf[ACCESSMASK_MAXLEN];
+ char accessmaskbuf1[ACCESSMASK_MAXLEN];
#endif
const char *attr;
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 ( 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 )
+ return ACL_BREAK;
+
+ } else {
+ int patlen, vdnlen, rc, got_match = 0;
+ struct berval vdn = { 0, NULL };
+
+ /* it is a DN */
+ assert( a->acl_attrs[0].an_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName );
+
+ rc = dnNormalize( 0, NULL, NULL, val, &vdn,
+ op->o_tmpmemctx );
+ if ( rc != LDAP_SUCCESS ) {
+ /* error */
+ return ACL_BREAK;
+ }
+
+ patlen = a->acl_attrval.bv_len;
+ vdnlen = vdn.bv_len;
+
+ if ( vdnlen < patlen )
+ goto attrval_cleanup;
+
+ if ( a->acl_dn_style == ACL_STYLE_BASE ) {
+ if ( vdnlen > patlen )
+ goto attrval_cleanup;
+
+ } else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
+ int rdnlen = -1;
+
+ if ( !DN_SEPARATOR( vdn.bv_val[vdnlen - patlen - 1] ) )
+ goto attrval_cleanup;
+
+ rdnlen = dn_rdnlen( NULL, &vdn );
+ if ( rdnlen != vdnlen - patlen - 1 )
+ goto attrval_cleanup;
+
+ } else if ( a->acl_dn_style == ACL_STYLE_SUBTREE ) {
+ if ( vdnlen > patlen && !DN_SEPARATOR( vdn.bv_val[vdnlen - patlen - 1] ) )
+ goto attrval_cleanup;
+
+ } else if ( a->acl_dn_style == ACL_STYLE_CHILDREN ) {
+ if ( vdnlen <= patlen )
+ goto attrval_cleanup;
+
+ if ( !DN_SEPARATOR( vdn.bv_val[vdnlen - patlen - 1] ) )
+ goto attrval_cleanup;
+ }
+
+ got_match = strcmp( a->acl_attrval.bv_val, vdn.bv_val + vdnlen - patlen );
+
+attrval_cleanup:;
+ if ( vdn.bv_val )
+ free( vdn.bv_val );
+
+ if ( !got_match )
+ return ACL_BREAK;
+
+ }
+ }
+ }
+
if( state && ( state->as_recorded & ACL_STATE_RECORDED_VD )
&& state->as_vd_acl == a )
{
string_expand(&bv, &b->a_dn_pat,
e->e_ndn, matches);
- if ( dnNormalize2(NULL, &bv, &pat) != LDAP_SUCCESS ) {
+ if ( dnNormalize(0, NULL, NULL, &bv, &pat, op->o_tmpmemctx ) != LDAP_SUCCESS ) {
/* did not expand to a valid dn */
continue;
}
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
at->a_nvals,
- &bv ) == 0 )
+ &bv, op->o_tmpmemctx ) == 0 )
{
/* found it */
match = 1;
bv.bv_val = buf;
string_expand( &bv, &b->a_group_pat, e->e_ndn, matches );
- if ( dnNormalize2( NULL, &bv, &ndn ) != LDAP_SUCCESS ) {
+ if ( dnNormalize( 0, NULL, NULL, &bv, &ndn, op->o_tmpmemctx ) != LDAP_SUCCESS ) {
/* did not expand to a valid dn */
continue;
}
if ( b->a_aci_at != NULL ) {
Attribute *at;
slap_access_t grant, deny, tgrant, tdeny;
+ struct berval parent_ndn, old_parent_ndn;
+ BerVarray bvals = NULL;
+ int ret,stop;
/* this case works different from the others above.
* since aci's themselves give permissions, we need
if ( ! ACL_GRANT( b->a_access_mask, *mask ) ) {
continue;
}
-
- /* get the aci attribute */
- at = attr_find( e->e_attrs, b->a_aci_at );
- if ( at == NULL ) {
- continue;
- }
-
- ACL_RECORD_VALUE_STATE;
-
/* start out with nothing granted, nothing denied */
ACL_INIT(tgrant);
ACL_INIT(tdeny);
- /* the aci is an multi-valued attribute. The
- * rights are determined by OR'ing the individual
- * rights given by the acis.
+ /* get the aci attribute */
+ at = attr_find( e->e_attrs, b->a_aci_at );
+ if ( at != NULL ) {
+ ACL_RECORD_VALUE_STATE;
+ /* the aci is an multi-valued attribute. The
+ * rights are determined by OR'ing the individual
+ * rights given by the acis.
+ */
+ for ( i = 0; at->a_vals[i].bv_val != NULL; i++ ) {
+ if (aci_mask( op,
+ e, desc, val,
+ &at->a_nvals[i],
+ matches, &grant, &deny, &aci_bv_entry ) != 0)
+ {
+ tgrant |= grant;
+ tdeny |= deny;
+ }
+ }
+ Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n",
+ accessmask2str(tgrant,accessmaskbuf),
+ accessmask2str(tdeny, accessmaskbuf1), 0);
+
+ }
+ /* If the entry level aci didn't contain anything valid for the
+ * current operation, climb up the tree and evaluate the
+ * acis with scope set to subtree
*/
- for ( i = 0; at->a_vals[i].bv_val != NULL; i++ ) {
- if (aci_mask( op,
- e, desc, val,
- &at->a_nvals[i],
- matches, &grant, &deny ) != 0)
- {
- tgrant |= grant;
- tdeny |= deny;
+ if( (tgrant == ACL_PRIV_NONE) && (tdeny == ACL_PRIV_NONE) ){
+ dnParent(&(e->e_nname), &parent_ndn);
+ while ( parent_ndn.bv_val != old_parent_ndn.bv_val ){
+ old_parent_ndn = parent_ndn;
+ Debug(LDAP_DEBUG_ACL, "checking ACI of %s\n", parent_ndn.bv_val, 0, 0);
+ ret=backend_attribute(op, NULL, &parent_ndn, b->a_aci_at, &bvals);
+ switch(ret){
+ case LDAP_SUCCESS :
+ if(bvals){
+ for( i = 0; bvals[i].bv_val != NULL; i++){
+ ACL_RECORD_VALUE_STATE;
+ if (aci_mask(op, e, desc, val, &bvals[i], matches,
+ &grant, &deny, &aci_bv_children) != 0) {
+ tgrant |= grant;
+ tdeny |= deny;
+ /* evaluation stops as soon as either a "deny" or a
+ * "grant" directive matches.
+ */
+ if( (tgrant != ACL_PRIV_NONE) || (tdeny != ACL_PRIV_NONE) ){
+ stop=1;
+ }
+ }
+ Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n",
+ accessmask2str(tgrant,accessmaskbuf),
+ accessmask2str(tdeny, accessmaskbuf1), 0);
+ }
+ }
+ stop=0;
+ break;
+ case LDAP_NO_SUCH_ATTRIBUTE:
+ /* just go on if the aci-Attribute is not present in
+ * the current entry
+ */
+ Debug(LDAP_DEBUG_ACL, "no such attribute\n", 0, 0, 0);
+ stop=0;
+ break;
+ case LDAP_NO_SUCH_OBJECT:
+ /* We have reached the base object */
+ Debug(LDAP_DEBUG_ACL, "no such object\n", 0, 0, 0);
+ stop=1;
+ break;
+ default:
+ stop=1;
+ break;
+ }
+ if(stop){
+ break;
+ }
+ dnParent(&old_parent_ndn, &parent_ndn);
}
}
+
/* remove anything that the ACL clause does not allow */
tgrant &= b->a_access_mask & ACL_PRIV_MASK;
tdeny &= ACL_PRIV_MASK;
{
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
}
BerVarray
-aci_set_gather (void *cookie, struct berval *name, struct berval *attr)
+aci_set_gather (SetCookie *cookie, struct berval *name, struct berval *attr)
{
- AciSetCookie *cp = cookie;
+ AciSetCookie *cp = (AciSetCookie *)cookie;
BerVarray bvals = NULL;
struct berval ndn;
* also return the syntax or some "comparison cookie".
*/
- if (dnNormalize2(NULL, name, &ndn) == LDAP_SUCCESS) {
+ if (dnNormalize(0, NULL, NULL, name, &ndn, cp->op->o_tmpmemctx) == LDAP_SUCCESS) {
const char *text;
AttributeDescription *desc = NULL;
if (slap_bv2ad(attr, &desc, &text) == LDAP_SUCCESS) {
backend_attribute(cp->op,
cp->e, &ndn, desc, &bvals);
}
- free(ndn.bv_val);
+ sl_free(ndn.bv_val, cp->op->o_tmpmemctx);
}
return(bvals);
}
AciSetCookie cookie;
if (setref == 0) {
- ber_dupbv( &set, subj );
+ ber_dupbv_x( &set, subj, op->o_tmpmemctx );
} else {
struct berval subjdn, ndn = { 0, NULL };
struct berval setat;
if ( setat.bv_val != NULL ) {
/*
- * NOTE: dnNormalize2 honors the ber_len field
+ * NOTE: dnNormalize honors the ber_len field
* as the length of the dn to be normalized
*/
- if ( dnNormalize2(NULL, &subjdn, &ndn) == LDAP_SUCCESS
+ if ( dnNormalize(0, NULL, NULL, &subjdn, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS
&& slap_bv2ad(&setat, &desc, &text) == LDAP_SUCCESS )
{
backend_attribute(op, e,
bvals[0].bv_val = bvals[i-1].bv_val;
bvals[i-1].bv_val = NULL;
}
- ber_bvarray_free(bvals);
+ ber_bvarray_free_x(bvals, op->o_tmpmemctx);
}
}
if (ndn.bv_val)
if (set.bv_val != NULL) {
cookie.op = op;
cookie.e = e;
- rc = (slap_set_filter(aci_set_gather, &cookie, &set,
+ rc = (slap_set_filter(aci_set_gather, (SetCookie *)&cookie, &set,
&op->o_ndn, &e->e_nname, NULL) > 0);
- ch_free(set.bv_val);
+ sl_free(set.bv_val, op->o_tmpmemctx);
}
return(rc);
}
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = (char *)&buf;
string_expand(&bv, &subjdn, e->e_ndn, matches);
- if ( dnNormalize2(NULL, &bv, &ndn) == LDAP_SUCCESS ) {
+ if ( dnNormalize(0, NULL, NULL, &bv, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS ) {
rc = (backend_group(op, e, &ndn, &op->o_ndn,
grp_oc, grp_ad) == 0);
free( ndn.bv_val );
struct berval *aci,
regmatch_t *matches,
slap_access_t *grant,
- slap_access_t *deny
+ slap_access_t *deny,
+ struct berval *scope
)
{
struct berval bv, perms, sdn;
For now, this routine only supports scope=entry.
*/
-
/* check that the aci has all 5 components */
if (aci_get_part(aci, 4, '#', NULL) < 0)
return(0);
if (aci_get_part(aci, 0, '#', &bv) < 0)
return(0);
- /* check that the scope is "entry" */
+ /* check that the scope matches */
if (aci_get_part(aci, 1, '#', &bv) < 0
- || ber_bvstrcasecmp( &aci_bv_entry, &bv ) != 0)
+ || ber_bvstrcasecmp( scope, &bv ) != 0)
{
return(0);
}
if (ber_bvstrcasecmp( &aci_bv_access_id, &bv ) == 0) {
struct berval ndn;
rc = 0;
- if ( dnNormalize2(NULL, &sdn, &ndn) == LDAP_SUCCESS ) {
+ if ( dnNormalize(0, NULL, NULL, &sdn, &ndn, op->o_tmpmemctx) == LDAP_SUCCESS ) {
if (dn_match( &op->o_ndn, &ndn))
rc = 1;
free(ndn.bv_val);
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
at->a_nvals,
- &bv) == 0 )
+ &bv, op->o_tmpmemctx) == 0 )
{
rc = 1;
break;
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