/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 1998-2005 The OpenLDAP Foundation.
+ * Copyright 1998-2006 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* - can be legally called with op->o_bd == NULL
*/
-#ifdef SLAP_OVERLAY_ACCESS
int
slap_access_always_allowed(
Operation *op,
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;
+ 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;
- }
+ } 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 {
return ret;
}
-#else /* !SLAP_OVERLAY_ACCESS */
-
-int
-access_allowed_mask(
- Operation *op,
- Entry *e,
- AttributeDescription *desc,
- struct berval *val,
- slap_access_t access,
- AccessControlState *state,
- slap_mask_t *maskp )
-{
- int ret = 1;
- int count;
- AccessControl *a = NULL;
- Backend *be;
- int be_null = 0;
-
-#ifdef LDAP_DEBUG
- char accessmaskbuf[ACCESSMASK_MAXLEN];
-#endif
- slap_mask_t mask;
- slap_control_t control;
- slap_access_t access_level;
- const char *attr;
- regmatch_t matches[MAXREMATCHES];
- int st_same_attr = 0;
- static AccessControlState state_init = ACL_STATE_INIT;
-
- assert( e != NULL );
- assert( desc != NULL );
-
- access_level = ACL_LEVEL( access );
-
- assert( access_level > ACL_NONE );
- if ( maskp ) ACL_INVALIDATE( *maskp );
-
- attr = desc->ad_cname.bv_val;
-
- assert( attr != NULL );
-
- if ( op ) {
- if ( op->o_is_auth_check &&
- ( access_level == ACL_SEARCH || access_level == ACL_READ ) )
- {
- access = ACL_AUTH;
-
- } else if ( get_manageDIT( op ) && access_level == ACL_WRITE &&
- desc == slap_schema.si_ad_entry )
- {
- access = ACL_MANAGE;
- }
- }
-
- if ( state ) {
- if ( state->as_vd_ad == desc ) {
- if ( state->as_recorded ) {
- if ( ( state->as_recorded & ACL_STATE_RECORDED_NV ) &&
- val == NULL )
- {
- return state->as_result;
-
- } else if ( ( state->as_recorded & ACL_STATE_RECORDED_VD ) &&
- val != NULL && state->as_vd_acl == NULL )
- {
- return state->as_result;
- }
- }
- st_same_attr = 1;
- } else {
- *state = state_init;
- }
-
- state->as_vd_ad=desc;
- }
-
- Debug( LDAP_DEBUG_ACL,
- "=> access_allowed: %s access to \"%s\" \"%s\" requested\n",
- access2str( access ), e->e_dn, attr );
-
- if ( op == NULL ) {
- /* no-op call */
- goto done;
- }
-
- be = op->o_bd;
- if ( be == NULL ) {
- be = LDAP_STAILQ_FIRST(&backendDB);
- be_null = 1;
-#ifdef LDAP_DEVEL
- /*
- * FIXME: experimental; use first backend rules
- * iff there is no global_acl (ITS#3100) */
- if ( frontendDB->be_acl == NULL )
-#endif
- {
- op->o_bd = be;
- }
- }
- assert( be != NULL );
-
- /* grant database root access */
- if ( be_isroot( op ) ) {
- Debug( LDAP_DEBUG_ACL, "<= root access granted\n", 0, 0, 0 );
- if ( maskp ) {
- mask = ACL_LVL_MANAGE;
- }
-
- goto done;
- }
-
- /*
- * no-user-modification operational attributes are ignored
- * by ACL_WRITE checking as any found here are not provided
- * by the user
- *
- * NOTE: but they are not ignored for ACL_MANAGE, because
- * if we get here it means a non-root user is trying to
- * manage data, so we need to check its privileges.
- */
- if ( access_level == ACL_WRITE && is_at_no_user_mod( desc->ad_type )
- && desc != slap_schema.si_ad_entry
- && desc != slap_schema.si_ad_children )
- {
- Debug( LDAP_DEBUG_ACL, "NoUserMod Operational attribute:"
- " %s access granted\n",
- attr, 0, 0 );
- goto done;
- }
-
- /* use backend default access if no backend acls */
- if ( be->be_acl == NULL ) {
- Debug( LDAP_DEBUG_ACL,
- "=> access_allowed: backend default %s "
- "access %s to \"%s\"\n",
- access2str( access ),
- be->be_dfltaccess >= access_level ? "granted" : "denied",
- op->o_dn.bv_val ? op->o_dn.bv_val : "(anonymous)" );
- ret = be->be_dfltaccess >= access_level;
-
- if ( maskp ) {
- int i;
-
- mask = ACL_PRIV_LEVEL;
- for ( i = ACL_NONE; i <= be->be_dfltaccess; i++ ) {
- mask |= ACL_ACCESS2PRIV( i );
- }
- }
-
- goto done;
-
-#ifdef notdef
- /* be is always non-NULL */
- /* use global default access if no global acls */
- } else if ( be == NULL && frontendDB->be_acl == NULL ) {
- Debug( LDAP_DEBUG_ACL,
- "=> access_allowed: global default %s access %s to \"%s\"\n",
- access2str( access ),
- frontendDB->be_dfltaccess >= access_level ?
- "granted" : "denied", op->o_dn.bv_val );
- ret = frontendDB->be_dfltaccess >= access_level;
-
- if ( maskp ) {
- int i;
-
- mask = ACL_PRIV_LEVEL;
- for ( i = ACL_NONE; i <= global_default_access; i++ ) {
- mask |= ACL_ACCESS2PRIV( i );
- }
- }
-
- goto done;
-#endif
- }
-
- ret = 0;
- control = ACL_BREAK;
-
- if ( st_same_attr ) {
- assert( state->as_vd_acl != NULL );
-
- a = state->as_vd_acl;
- count = state->as_vd_acl_count;
- if ( !ACL_IS_INVALID( state->as_vd_acl_mask ) ) {
- mask = state->as_vd_acl_mask;
- AC_MEMCPY( matches, state->as_vd_acl_matches, sizeof(matches) );
- goto vd_access;
- }
-
- } else {
- if ( state ) state->as_vi_acl = NULL;
- a = NULL;
- ACL_INIT(mask);
- count = 0;
- memset( matches, '\0', sizeof(matches) );
- }
-
- while ( ( a = slap_acl_get( a, &count, op, e, desc, val,
- MAXREMATCHES, matches, state ) ) != NULL )
- {
- int i;
-
- for ( i = 0; i < MAXREMATCHES && matches[i].rm_so > 0; i++ ) {
- 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 ) {
- 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 );
- }
- }
- Debug( LDAP_DEBUG_ARGS, "\n", 0, 0, 0 );
- }
-
- if ( state ) {
- if ( state->as_vi_acl == a &&
- ( state->as_recorded & ACL_STATE_RECORDED_NV ) )
- {
- Debug( LDAP_DEBUG_ACL,
- "access_allowed: result from state (%s)\n",
- attr, 0, 0 );
- ret = state->as_result;
- goto done;
- } else {
- Debug( LDAP_DEBUG_ACL,
- "access_allowed: no res from state (%s)\n",
- attr, 0, 0 );
- }
- }
-
-vd_access:
- control = slap_acl_mask( a, &mask, op,
- e, desc, val, MAXREMATCHES, matches, count, state );
-
- if ( control != ACL_BREAK ) {
- break;
- }
-
- memset( matches, '\0', sizeof(matches) );
- }
-
- if ( ACL_IS_INVALID( mask ) ) {
- Debug( LDAP_DEBUG_ACL,
- "=> access_allowed: \"%s\" (%s) invalid!\n",
- e->e_dn, attr, 0 );
- ACL_INIT(mask);
-
- } else if ( control == ACL_BREAK ) {
- Debug( LDAP_DEBUG_ACL,
- "=> access_allowed: no more rules\n", 0, 0, 0 );
-
- goto done;
- }
-
- Debug( LDAP_DEBUG_ACL,
- "=> access_allowed: %s access %s by %s\n",
- access2str( access ),
- ACL_GRANT(mask, access) ? "granted" : "denied",
- accessmask2str( mask, accessmaskbuf, 1 ) );
-
- ret = ACL_GRANT(mask, access);
-
-done:
- if ( state != NULL ) {
- /* If not value-dependent, save ACL in case of more attrs */
- if ( !( state->as_recorded & ACL_STATE_RECORDED_VD ) ) {
- state->as_vi_acl = a;
- state->as_result = ret;
- }
- state->as_recorded |= ACL_STATE_RECORDED;
- }
- if ( be_null ) op->o_bd = NULL;
- if ( maskp ) *maskp = mask;
- return ret;
-}
-
-#endif /* SLAP_OVERLAY_ACCESS */
/*
* slap_acl_get - return the acl applicable to entry e, attribute
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 */ a->acl_attrval_mr, 0,
+ a->acl_attrval_mr, 0,
val, &a->acl_attrval, &text ) != LDAP_SUCCESS ||
match )
continue;
continue;
}
- if ( strcmp( a->acl_attrval.bv_val, val->bv_val + vdnlen - patlen ))
+ if ( strcmp( a->acl_attrval.bv_val, val->bv_val + vdnlen - patlen ) )
continue;
}
}
acl_mask_dn(
Operation *op,
Entry *e,
+ AttributeDescription *desc,
+ struct berval *val,
AccessControl *a,
int nmatch,
regmatch_t *matches,
* value is set in a_dn_style; however, the string
* is maintaned in a_dn_pat.
*/
+ if ( b->a_self ) {
+ const char *dummy;
+ int rc, match = 0;
+
+ /* must have DN syntax */
+ if ( desc->ad_type->sat_syntax != slap_schema.si_syn_distinguishedName ) return 1;
+
+ /* check if the target is an attribute. */
+ if ( val == NULL ) return 1;
+
+ /* target is attribute, check if the attribute value
+ * is the op dn.
+ */
+ rc = value_match( &match, desc,
+ desc->ad_type->sat_equality, 0,
+ val, opndn, &dummy );
+ /* on match error or no match, fail the ACL clause */
+ if ( rc != LDAP_SUCCESS || match != 0 )
+ return 1;
+ }
+
if ( b->a_style == ACL_STYLE_ANONYMOUS ) {
if ( !BER_BVISEMPTY( opndn ) ) {
return 1;
* is maintaned in a_dn_pat.
*/
- if ( acl_mask_dn( op, e, a, nmatch, matches,
+ if ( acl_mask_dn( op, e, desc, val, a, nmatch, matches,
&b->a_dn, &op->o_ndn ) )
{
continue;
ndn = op->o_ndn;
}
- if ( acl_mask_dn( op, e, a, nmatch, matches,
+ if ( acl_mask_dn( op, e, desc, val, a, nmatch, matches,
&b->a_realdn, &ndn ) )
{
continue;
}
/* start out with nothing granted, nothing denied */
- ACL_INIT(tgrant);
- ACL_INIT(tdeny);
+ ACL_INVALIDATE(tgrant);
+ ACL_INVALIDATE(tdeny);
for ( da = b->a_dynacl; da; da = da->da_next ) {
slap_access_t grant,
deny;
- ACL_INIT(grant);
- ACL_INIT(deny);
+ ACL_INVALIDATE(grant);
+ ACL_INVALIDATE(deny);
Debug( LDAP_DEBUG_ACL, " <= check a_dynacl: %s\n",
da->da_name, 0, 0 );
}
} else
-#else /* !SLAP_DYNACL */
-
- /* NOTE: this entire block can be eliminated when SLAP_DYNACL
- * moves outside of LDAP_DEVEL */
-#ifdef SLAPD_ACI_ENABLED
- if ( b->a_aci_at != NULL ) {
- Attribute *at;
- slap_access_t grant, deny, tgrant, tdeny;
- struct berval parent_ndn;
- BerVarray bvals = NULL;
- int ret, stop;
-#ifdef LDAP_DEBUG
- char accessmaskbuf1[ACCESSMASK_MAXLEN];
-#endif /* DEBUG */
-
- 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.
- */
-
- if ( BER_BVISEMPTY( &e->e_nname ) ) {
- /* no ACIs in the root DSE */
- continue;
- }
-
- /* first check if the right being requested
- * is allowed by the ACL clause.
- */
- if ( ! ACL_GRANT( b->a_access_mask, *mask ) ) {
- continue;
- }
- /* start out with nothing granted, nothing denied */
- ACL_INIT(tgrant);
- ACL_INIT(tdeny);
-
- /* 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.
- */
- for ( i = 0; !BER_BVISNULL( &at->a_nvals[i] ); i++ ) {
- if ( aci_mask( op,
- e, desc, val,
- &at->a_nvals[i],
- nmatch, matches,
- &grant, &deny, SLAP_ACI_SCOPE_ENTRY ) != 0 )
- {
- tgrant |= grant;
- tdeny |= deny;
- }
- }
- Debug(LDAP_DEBUG_ACL, "<= aci_mask grant %s deny %s\n",
- accessmask2str(tgrant, accessmaskbuf, 1),
- accessmask2str(tdeny, accessmaskbuf1, 1), 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
- */
- if ( (tgrant == ACL_PRIV_NONE) && (tdeny == ACL_PRIV_NONE) ) {
- dnParent( &e->e_nname, &parent_ndn );
- while ( !BER_BVISEMPTY( &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, ACL_AUTH);
- switch(ret){
- case LDAP_SUCCESS :
- stop = 0;
- if (!bvals){
- break;
- }
-
- for ( i = 0; !BER_BVISNULL( &bvals[i] ); 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],
- nmatch, matches,
- &grant, &deny, SLAP_ACI_SCOPE_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, 1),
- accessmask2str(tdeny, accessmaskbuf1, 1), 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( &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;
-
- /* see if we have anything to contribute */
- if( ACL_IS_INVALID(tgrant) && ACL_IS_INVALID(tdeny) ) {
- continue;
- }
-
- /* this could be improved by changing slap_acl_mask so that it can deal with
- * by clauses that return grant/deny pairs. Right now, it does either
- * additive or subtractive rights, but not both at the same time. So,
- * we need to combine the grant/deny pair into a single rights mask in
- * a smart way: if either grant or deny is "empty", then we use the
- * opposite as is, otherwise we remove any denied rights from the grant
- * rights mask and construct an additive mask.
- */
- if (ACL_IS_INVALID(tdeny)) {
- modmask = tgrant | ACL_PRIV_ADDITIVE;
-
- } else if (ACL_IS_INVALID(tgrant)) {
- modmask = tdeny | ACL_PRIV_SUBSTRACTIVE;
-
- } else {
- modmask = (tgrant & ~tdeny) | ACL_PRIV_ADDITIVE;
- }
-
- } else
-#endif /* SLAPD_ACI_ENABLED */
-#endif /* !SLAP_DYNACL */
+#endif /* SLAP_DYNACL */
{
modmask = b->a_access_mask;
}
switch ( mlist->sml_op ) {
case LDAP_MOD_REPLACE:
+ case LDAP_MOD_INCREMENT:
/*
* We must check both permission to delete the whole
* attribute and permission to add the specific attributes.
} else {
struct berval subjdn, ndn = BER_BVNULL;
struct berval setat;
- BerVarray bvals;
+ BerVarray bvals = NULL;
const char *text;
AttributeDescription *desc = NULL;
* statically built-in dynamic ACL initialization
*/
static int (*acl_init_func[])( void ) = {
-#ifdef SLAPD_ACI_ENABLED
#ifdef SLAP_DYNACL
+ /* TODO: remove when ACI will only be dynamic */
+#if SLAPD_ACI_ENABLED == SLAPD_MOD_STATIC
dynacl_aci_init,
-#else /* !SLAP_DYNACL */
- aci_init,
-#endif /* !SLAP_DYNACL */
#endif /* SLAPD_ACI_ENABLED */
+#endif /* SLAP_DYNACL */
NULL
};
projects / openldap / blobdiff