/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 1998-2005 The OpenLDAP Foundation.
+ * Copyright 1998-2007 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include "lber_pvt.h"
#include "lutil.h"
-#ifdef LDAP_SLAPI
-#include "slapi/slapi.h"
-#endif /* LDAPI_SLAPI */
-
#define ACL_BUF_SIZE 1024 /* use most appropriate size */
-/*
- * speed up compares
- */
-static struct berval
- aci_bv_entry = BER_BVC("entry"),
- aci_bv_children = BER_BVC("children"),
- aci_bv_onelevel = BER_BVC("onelevel"),
- aci_bv_subtree = BER_BVC("subtree"),
- aci_bv_br_entry = BER_BVC("[entry]"),
- aci_bv_br_all = BER_BVC("[all]"),
- aci_bv_access_id = BER_BVC("access-id"),
-#if 0
- aci_bv_anonymous = BER_BVC("anonymous"),
-#endif
- aci_bv_public = BER_BVC("public"),
- aci_bv_users = BER_BVC("users"),
- aci_bv_self = BER_BVC("self"),
- aci_bv_dnattr = BER_BVC("dnattr"),
- aci_bv_group = BER_BVC("group"),
- aci_bv_role = BER_BVC("role"),
- aci_bv_set = BER_BVC("set"),
- 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="),
+static const struct berval acl_bv_ip_eq = BER_BVC( "IP=" );
#ifdef LDAP_PF_LOCAL
- aci_bv_path_eq = BER_BVC("PATH="),
-#if 0
- aci_bv_dirsep = BER_BVC(LDAP_DIRSEP),
-#endif
+static const struct berval acl_bv_path_eq = BER_BVC("PATH=");
#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_set_attr = BER_BVC(SLAPD_ACI_SET_ATTR);
-
-typedef enum slap_aci_scope_t {
- SLAP_ACI_SCOPE_ENTRY = 0x1,
- SLAP_ACI_SCOPE_CHILDREN = 0x2,
- SLAP_ACI_SCOPE_SUBTREE = ( SLAP_ACI_SCOPE_ENTRY | SLAP_ACI_SCOPE_CHILDREN )
-} slap_aci_scope_t;
-
-static AccessControl * acl_get(
+
+static AccessControl * slap_acl_get(
AccessControl *ac, int *count,
Operation *op, Entry *e,
AttributeDescription *desc,
int nmatch, regmatch_t *matches,
AccessControlState *state );
-static slap_control_t acl_mask(
+static slap_control_t slap_acl_mask(
AccessControl *ac, slap_mask_t *mask,
Operation *op, Entry *e,
AttributeDescription *desc,
int count,
AccessControlState *state );
-#ifdef SLAPD_ACI_ENABLED
-static int aci_mask(
- Operation *op, Entry *e,
- AttributeDescription *desc,
- struct berval *val,
- struct berval *aci,
- int nmatch,
- regmatch_t *matches,
- slap_access_t *grant,
- slap_access_t *deny,
- slap_aci_scope_t scope);
-#endif /* SLAPD_ACI_ENABLED */
-
static int regex_matches(
struct berval *pat, char *str, char *buf,
int nmatch, regmatch_t *matches);
-static int string_expand(
- struct berval *newbuf, struct berval *pattern,
- char *match, int nmatch, regmatch_t *matches);
-typedef struct AciSetCookie {
- Operation *op;
- Entry *e;
-} AciSetCookie;
+typedef struct AclSetCookie {
+ SetCookie asc_cookie;
+#define asc_op asc_cookie.set_op
+ Entry *asc_e;
+} AclSetCookie;
-SLAP_SET_GATHER aci_set_gather;
-SLAP_SET_GATHER aci_set_gather2;
-static int aci_match_set ( struct berval *subj, Operation *op,
- Entry *e, int setref );
+SLAP_SET_GATHER acl_set_gather;
+SLAP_SET_GATHER acl_set_gather2;
/*
* access_allowed - check whether op->o_ndn is allowed the requested access
* the whole attribute is assumed (all values).
*
* This routine loops through all access controls and calls
- * acl_mask() on each applicable access control.
+ * slap_acl_mask() on each applicable access control.
* The loop exits when a definitive answer is reached or
* or no more controls remain.
*
AccessControlState *state,
slap_mask_t *maskp )
{
- assert( maskp );
+ assert( maskp != NULL );
- ACL_PRIV_SET( *maskp, ACL_ACCESS2PRIV( access ) );
+ /* assign all */
+ ACL_LVL_ASSIGN_MANAGE( *maskp );
return 1;
}
assert( attr != 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 */
+ ACL_INIT( mask );
/* grant database root access */
if ( be_isroot( op ) ) {
* 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 )
+ 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 )
{
memset( matches, '\0', sizeof( matches ) );
}
- while ( ( a = acl_get( a, &count, op, e, desc, val,
+ while ( ( a = slap_acl_get( a, &count, op, e, desc, val,
MAXREMATCHES, matches, state ) ) != NULL )
{
int i;
}
vd_access:
- control = acl_mask( a, &mask, op,
+ control = slap_acl_mask( a, &mask, op,
e, desc, val, MAXREMATCHES, matches, count, state );
if ( control != ACL_BREAK ) {
return ret;
}
+int
+fe_access_allowed(
+ Operation *op,
+ Entry *e,
+ AttributeDescription *desc,
+ struct berval *val,
+ slap_access_t access,
+ AccessControlState *state,
+ slap_mask_t *maskp )
+{
+ BackendDB *be_orig;
+ int rc;
+
+ /*
+ * NOTE: control gets here if FIXME
+ * if an appropriate backend cannot be selected for the operation,
+ * we assume that the frontend should handle this
+ * FIXME: should select_backend() take care of this,
+ * and return frontendDB instead of NULL? maybe for some value
+ * of the flags?
+ */
+ be_orig = op->o_bd;
+
+ if ( op->o_bd == NULL ) {
+ op->o_bd = select_backend( &op->o_req_ndn, 0, 0 );
+ if ( op->o_bd == NULL )
+ op->o_bd = frontendDB;
+ }
+ rc = slap_access_allowed( op, e, desc, val, access, state, maskp );
+ op->o_bd = be_orig;
+
+ return rc;
+}
+
int
access_allowed_mask(
Operation *op,
char accessmaskbuf[ACCESSMASK_MAXLEN];
#endif
slap_mask_t mask;
- slap_control_t control;
slap_access_t access_level;
const char *attr;
int st_same_attr = 0;
static AccessControlState state_init = ACL_STATE_INIT;
- BI_access_allowed *bi_access_allowed = NULL;
assert( e != NULL );
assert( desc != NULL );
assert( attr != NULL );
- if ( op && op->o_is_auth_check &&
- ( access_level == ACL_SEARCH || access_level == ACL_READ ) )
- {
- access = ACL_AUTH;
+ 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 ) {
/* this is enforced in backend_add() */
if ( op->o_bd->bd_info->bi_access_allowed ) {
/* delegate to backend */
- ret = op->o_bd->bd_info->bi_access_allowed( op, e, desc, val, access, state, &mask );
+ ret = op->o_bd->bd_info->bi_access_allowed( op, e,
+ desc, val, access, state, &mask );
} else {
- /* use default */
- ret = slap_access_allowed( op, e, desc, val, access, state, &mask );
+ /* use default (but pass through frontend
+ * for global ACL overlays) */
+ ret = frontendDB->bd_info->bi_access_allowed( op, e,
+ desc, val, access, state, &mask );
}
if ( !ret ) {
e->e_dn, attr, 0 );
ACL_INIT( mask );
- } else if ( control == ACL_BREAK ) {
+ } else {
Debug( LDAP_DEBUG_ACL,
"=> access_allowed: no more rules\n", 0, 0, 0 );
goto done;
}
-
- ret = ACL_GRANT( mask, access );
}
Debug( LDAP_DEBUG_ACL,
assert( attr != NULL );
- if ( op && op->o_is_auth_check &&
- ( access_level == ACL_SEARCH || access_level == ACL_READ ) )
- {
- access = ACL_AUTH;
+ 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 ) {
}
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_isroot( op ) ) {
Debug( LDAP_DEBUG_ACL, "<= root access granted\n", 0, 0, 0 );
* 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 )
+ 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 )
{
memset( matches, '\0', sizeof(matches) );
}
- while ( ( a = acl_get( a, &count, op, e, desc, val,
+ while ( ( a = slap_acl_get( a, &count, op, e, desc, val,
MAXREMATCHES, matches, state ) ) != NULL )
{
int i;
}
vd_access:
- control = acl_mask( a, &mask, op,
+ control = slap_acl_mask( a, &mask, op,
e, desc, val, MAXREMATCHES, matches, count, state );
if ( control != ACL_BREAK ) {
#endif /* SLAP_OVERLAY_ACCESS */
/*
- * acl_get - return the acl applicable to entry e, attribute
+ * slap_acl_get - return the acl applicable to entry e, attribute
* attr. the acl returned is suitable for use in subsequent calls to
* acl_access_allowed().
*/
static AccessControl *
-acl_get(
+slap_acl_get(
AccessControl *a,
int *count,
Operation *op,
continue;
} else if ( a->acl_dn_style == ACL_STYLE_ONE ) {
- int rdnlen = -1, sep = 0;
+ ber_len_t rdnlen = 0;
+ int sep = 0;
if ( dnlen <= patlen )
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 = a;
state->as_vd_acl_count = *count;
state->as_vd_access = a->acl_access;
state->as_vd_access_count = 1;
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,
+ a->acl_attrval_mr, 0,
val, &a->acl_attrval, &text ) != LDAP_SUCCESS ||
match )
continue;
continue;
} else if ( a->acl_attrval_style == ACL_STYLE_ONE ) {
- int rdnlen = -1;
+ ber_len_t rdnlen = 0;
if ( !DN_SEPARATOR( val->bv_val[vdnlen - patlen - 1] ) )
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;
}
}
return( NULL );
}
+/*
+ * Record value-dependent access control state
+*/
+ #define ACL_RECORD_VALUE_STATE do { \
+ if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) { \
+ state->as_recorded |= ACL_STATE_RECORDED_VD; \
+ state->as_vd_acl = a; \
+ AC_MEMCPY( state->as_vd_acl_matches, matches, \
+ sizeof( state->as_vd_acl_matches )) ; \
+ state->as_vd_acl_count = count; \
+ state->as_vd_access = b; \
+ state->as_vd_access_count = i; \
+ }\
+ } while( 0 )
+
static int
acl_mask_dn(
Operation *op,
Entry *e,
+ AttributeDescription *desc,
+ struct berval *val,
AccessControl *a,
int nmatch,
regmatch_t *matches,
- slap_dn_access *b,
+ slap_dn_access *bdn,
struct berval *opndn )
{
/*
* NOTE: styles "anonymous", "users" and "self"
* have been moved to enum slap_style_t, whose
* value is set in a_dn_style; however, the string
- * is maintaned in a_dn_pat.
+ * is maintained in a_dn_pat.
*/
- if ( b->a_style == ACL_STYLE_ANONYMOUS ) {
+
+ if ( bdn->a_style == ACL_STYLE_ANONYMOUS ) {
if ( !BER_BVISEMPTY( opndn ) ) {
return 1;
}
- } else if ( b->a_style == ACL_STYLE_USERS ) {
+ } else if ( bdn->a_style == ACL_STYLE_USERS ) {
if ( BER_BVISEMPTY( opndn ) ) {
return 1;
}
- } else if ( b->a_style == ACL_STYLE_SELF ) {
+ } else if ( bdn->a_style == ACL_STYLE_SELF ) {
struct berval ndn, selfndn;
int level;
return 1;
}
- level = b->a_self_level;
+ level = bdn->a_self_level;
if ( level < 0 ) {
selfndn = *opndn;
ndn = e->e_nname;
return 1;
}
- } else if ( b->a_style == ACL_STYLE_REGEX ) {
- if ( !ber_bvccmp( &b->a_pat, '*' ) ) {
+ } else if ( bdn->a_style == ACL_STYLE_REGEX ) {
+ if ( !ber_bvccmp( &bdn->a_pat, '*' ) ) {
int tmp_nmatch;
regmatch_t tmp_matches[2],
*tmp_matchesp = tmp_matches;
return 1;
}
- if ( !regex_matches( &b->a_pat, opndn->bv_val,
+ if ( !regex_matches( &bdn->a_pat, opndn->bv_val,
e->e_ndn, tmp_nmatch, tmp_matchesp ) )
{
return 1;
if ( e->e_dn == NULL )
return 1;
- if ( b->a_expand ) {
+ if ( bdn->a_expand ) {
struct berval bv;
char buf[ACL_BUF_SIZE];
return 1;
}
- if ( string_expand( &bv, &b->a_pat,
+ if ( acl_string_expand( &bv, &bdn->a_pat,
e->e_nname.bv_val,
tmp_nmatch, tmp_matchesp ) )
{
}
} else {
- pat = b->a_pat;
+ pat = bdn->a_pat;
}
patlen = pat.bv_len;
}
- if ( b->a_style == ACL_STYLE_BASE ) {
+ if ( bdn->a_style == ACL_STYLE_BASE ) {
/* base dn -- entire object DN must match */
if ( odnlen != patlen ) {
goto dn_match_cleanup;
}
- } else if ( b->a_style == ACL_STYLE_ONE ) {
- int rdnlen = -1;
+ } else if ( bdn->a_style == ACL_STYLE_ONE ) {
+ ber_len_t rdnlen = 0;
if ( odnlen <= patlen ) {
goto dn_match_cleanup;
}
rdnlen = dn_rdnlen( NULL, opndn );
- if ( rdnlen != odnlen - patlen - 1 ) {
+ if ( rdnlen - ( odnlen - patlen - 1 ) != 0 ) {
goto dn_match_cleanup;
}
- } else if ( b->a_style == ACL_STYLE_SUBTREE ) {
+ } else if ( bdn->a_style == ACL_STYLE_SUBTREE ) {
if ( odnlen > patlen && !DN_SEPARATOR( opndn->bv_val[odnlen - patlen - 1] ) ) {
goto dn_match_cleanup;
}
- } else if ( b->a_style == ACL_STYLE_CHILDREN ) {
+ } else if ( bdn->a_style == ACL_STYLE_CHILDREN ) {
if ( odnlen <= patlen ) {
goto dn_match_cleanup;
}
goto dn_match_cleanup;
}
- } else if ( b->a_style == ACL_STYLE_LEVEL ) {
- int level;
- struct berval ndn;
+ } else if ( bdn->a_style == ACL_STYLE_LEVEL ) {
+ int level = bdn->a_level;
+ struct berval ndn;
if ( odnlen <= patlen ) {
goto dn_match_cleanup;
goto dn_match_cleanup;
}
- level = b->a_level;
ndn = *opndn;
for ( ; level > 0; level-- ) {
if ( BER_BVISEMPTY( &ndn ) ) {
got_match = !strcmp( pat.bv_val, &opndn->bv_val[ odnlen - patlen ] );
dn_match_cleanup:;
- if ( pat.bv_val != b->a_pat.bv_val ) {
+ if ( pat.bv_val != bdn->a_pat.bv_val ) {
slap_sl_free( pat.bv_val, op->o_tmpmemctx );
}
return 0;
}
-/*
- * Record value-dependent access control state
- */
-#define ACL_RECORD_VALUE_STATE do { \
- if( state && !( state->as_recorded & ACL_STATE_RECORDED_VD )) { \
- state->as_recorded |= ACL_STATE_RECORDED_VD; \
- state->as_vd_acl = a; \
- AC_MEMCPY( state->as_vd_acl_matches, matches, \
- sizeof( state->as_vd_acl_matches )) ; \
- state->as_vd_acl_count = count; \
- state->as_vd_access = b; \
- state->as_vd_access_count = i; \
- } \
- } while( 0 )
-
static int
acl_mask_dnattr(
Operation *op,
/*
- * acl_mask - modifies mask based upon the given acl and the
+ * slap_acl_mask - modifies mask based upon the given acl and the
* requested access to entry e, attribute attr, value val. if val
* is null, access to the whole attribute is assumed (all values).
*
*/
static slap_control_t
-acl_mask(
+slap_acl_mask(
AccessControl *a,
slap_mask_t *mask,
Operation *op,
AccessControlState *state )
{
int i;
- Access *b;
+ Access *b;
#ifdef LDAP_DEBUG
- char accessmaskbuf[ACCESSMASK_MAXLEN];
-#if !defined( SLAP_DYNACL ) && defined( SLAPD_ACI_ENABLED )
- char accessmaskbuf1[ACCESSMASK_MAXLEN];
-#endif /* !SLAP_DYNACL && SLAPD_ACI_ENABLED */
+ char accessmaskbuf[ACCESSMASK_MAXLEN];
#endif /* DEBUG */
- const char *attr;
+ const char *attr;
+ slap_mask_t a2pmask = ACL_ACCESS2PRIV( *mask );
assert( a != NULL );
assert( mask != NULL );
* NOTE: styles "anonymous", "users" and "self"
* have been moved to enum slap_style_t, whose
* value is set in a_dn_style; however, the string
- * is maintaned in a_dn_pat.
+ * is maintained in a_dn_pat.
*/
- if ( acl_mask_dn( op, e, a, nmatch, matches,
- &b->a_dn, &op->o_ndn ) )
+ if ( acl_mask_dn( op, e, desc, val, a, nmatch, matches,
+ &b->a_dn, &op->o_ndn ) )
{
continue;
}
* NOTE: styles "anonymous", "users" and "self"
* have been moved to enum slap_style_t, whose
* value is set in a_dn_style; however, the string
- * is maintaned in a_dn_pat.
+ * is maintained in a_dn_pat.
*/
if ( op->o_conn && !BER_BVISNULL( &op->o_conn->c_ndn ) )
ndn = op->o_ndn;
}
- if ( acl_mask_dn( op, e, a, nmatch, matches,
- &b->a_realdn, &ndn ) )
+ if ( acl_mask_dn( op, e, desc, val, a, nmatch, matches,
+ &b->a_realdn, &ndn ) )
{
continue;
}
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = buf;
- if ( string_expand( &bv, &b->a_sockurl_pat,
+ if ( acl_string_expand( &bv, &b->a_sockurl_pat,
e->e_ndn, nmatch, matches ) )
{
continue;
bv.bv_len = sizeof(buf) - 1;
bv.bv_val = buf;
- if ( string_expand(&bv, &b->a_domain_pat,
+ if ( acl_string_expand(&bv, &b->a_domain_pat,
e->e_ndn, nmatch, matches) )
{
continue;
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = buf;
- if ( string_expand( &bv, &b->a_peername_pat,
+ if ( acl_string_expand( &bv, &b->a_peername_pat,
e->e_ndn, nmatch, matches ) )
{
continue;
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 )
+ acl_bv_ip_eq.bv_val,
+ acl_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;
+ ip.bv_val = op->o_conn->c_peer_name.bv_val + acl_bv_ip_eq.bv_len;
+ ip.bv_len = op->o_conn->c_peer_name.bv_len - acl_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' )
+ if ( lutil_atoi( &port_number, port ) != 0 )
continue;
}
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 )
+ acl_bv_path_eq.bv_val,
+ acl_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;
+ path.bv_val = op->o_conn->c_peer_name.bv_val
+ + acl_bv_path_eq.bv_len;
+ path.bv_len = op->o_conn->c_peer_name.bv_len
+ - acl_bv_path_eq.bv_len;
if ( ber_bvcmp( &b->a_peername_pat, &path ) != 0 )
continue;
bv.bv_len = sizeof( buf ) - 1;
bv.bv_val = buf;
- if ( string_expand( &bv, &b->a_sockname_pat,
+ if ( acl_string_expand( &bv, &b->a_sockname_pat,
e->e_ndn, nmatch, matches ) )
{
continue;
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
continue;
}
- if ( string_expand( &bv, &b->a_group_pat,
+ if ( acl_string_expand( &bv, &b->a_group_pat,
e->e_nname.bv_val,
tmp_nmatch, tmp_matchesp ) )
{
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_EXPAND ) {
int tmp_nmatch;
regmatch_t tmp_matches[2],
continue;
}
- if ( string_expand( &bv, &b->a_set_pat,
+ if ( acl_string_expand( &bv, &b->a_set_pat,
e->e_nname.bv_val,
tmp_nmatch, tmp_matchesp ) )
{
bv = b->a_set_pat;
}
- if ( aci_match_set( &bv, op, e, 0 ) == 0 ) {
+ if ( acl_match_set( &bv, op, e, NULL ) == 0 ) {
continue;
}
}
}
}
+ /* check for the "self" modifier in the <access> field */
+ if ( b->a_dn.a_self ) {
+ const char *dummy;
+ int rc, match = 0;
+
+ ACL_RECORD_VALUE_STATE;
+
+ /* must have DN syntax */
+ if ( desc->ad_type->sat_syntax != slap_schema.si_syn_distinguishedName &&
+ !is_at_syntax( desc->ad_type, SLAPD_NAMEUID_SYNTAX )) continue;
+
+ /* check if the target is an attribute. */
+ if ( val == NULL ) continue;
+
+ /* a DN must be present */
+ if ( BER_BVISEMPTY( &op->o_ndn ) ) {
+ continue;
+ }
+
+ /* target is attribute, check if the attribute value
+ * is the op dn.
+ */
+ rc = value_match( &match, desc,
+ desc->ad_type->sat_equality, 0,
+ val, &op->o_ndn, &dummy );
+ /* on match error or no match, fail the ACL clause */
+ if ( rc != LDAP_SUCCESS || match != 0 )
+ continue;
+ }
#ifdef SLAP_DYNACL
if ( b->a_dynacl ) {
slap_dynacl_t *da;
slap_access_t tgrant, tdeny;
+ Debug( LDAP_DEBUG_ACL, "<= check a_dynacl\n",
+ 0, 0, 0 );
+
/* this case works different from the others above.
- * since aci's themselves give permissions, we need
+ * since dynamic ACL'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 ) ) {
+ if ( ! ACL_PRIV_ISSET( b->a_access_mask, a2pmask ) ) {
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;
+ slap_access_t grant,
+ deny;
+
+ ACL_INVALIDATE(grant);
+ ACL_INVALIDATE(deny);
+
+ Debug( LDAP_DEBUG_ACL, " <= check a_dynacl: %s\n",
+ da->da_name, 0, 0 );
(void)( *da->da_mask )( da->da_private, op, e, desc, val, nmatch, matches, &grant, &deny );
continue;
}
- /* this could be improved by changing acl_mask so that it can deal with
+ /* 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
} 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;
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
* rights given by the acis.
*/
for ( i = 0; !BER_BVISNULL( &at->a_nvals[i] ); i++ ) {
- if (aci_mask( op,
+ if ( aci_mask( op,
e, desc, val,
&at->a_nvals[i],
nmatch, matches,
- &grant, &deny, SLAP_ACI_SCOPE_ENTRY ) != 0)
+ &grant, &deny, SLAP_ACI_SCOPE_ENTRY ) != 0 )
{
tgrant |= grant;
tdeny |= deny;
break;
}
- for( i = 0; bvals[i].bv_val != NULL; i++){
+ 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],
+ if ( aci_mask( op, e, desc, val, &bvals[i],
nmatch, matches,
&grant, &deny, SLAP_ACI_SCOPE_CHILDREN ) != 0 )
{
continue;
}
- /* this could be improved by changing acl_mask so that it can deal with
+ /* 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
*mask = modmask;
}
+ a2pmask = *mask;
+
Debug( LDAP_DEBUG_ACL,
"<= acl_mask: [%d] mask: %s\n",
i, accessmask2str(*mask, accessmaskbuf, 1), 0 );
acl_check_modlist(
Operation *op,
Entry *e,
- Modifications *mlist
-)
+ Modifications *mlist )
{
struct berval *bv;
AccessControlState state = ACL_STATE_INIT;
* by ACL_WRITE checking as any found here are not provided
* by the user
*/
- if ( is_at_no_user_mod( mlist->sml_desc->ad_type ) ) {
+ if ( is_at_no_user_mod( mlist->sml_desc->ad_type )
+ && ! ( mlist->sml_flags & SLAP_MOD_MANAGING ) )
+ {
Debug( LDAP_DEBUG_ACL, "acl: no-user-mod %s:"
" modify access granted\n",
mlist->sml_desc->ad_cname.bv_val, 0, 0 );
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.
* This prevents abuse from selfwriters.
*/
if ( ! access_allowed( op, e,
- mlist->sml_desc, NULL, ACL_WDEL, &state ) )
+ mlist->sml_desc, NULL,
+ ( mlist->sml_flags & SLAP_MOD_MANAGING ) ? ACL_MANAGE : ACL_WDEL,
+ &state ) )
{
ret = 0;
goto done;
bv->bv_val != NULL; bv++ )
{
if ( ! access_allowed( op, e,
- mlist->sml_desc, bv, ACL_WADD, &state ) )
+ mlist->sml_desc, bv,
+ ( mlist->sml_flags & SLAP_MOD_MANAGING ) ? ACL_MANAGE : ACL_WADD,
+ &state ) )
{
ret = 0;
goto done;
case LDAP_MOD_DELETE:
if ( mlist->sml_values == NULL ) {
if ( ! access_allowed( op, e,
- mlist->sml_desc, NULL, ACL_WDEL, NULL ) )
+ mlist->sml_desc, NULL,
+ ( mlist->sml_flags & SLAP_MOD_MANAGING ) ? ACL_MANAGE : ACL_WDEL,
+ NULL ) )
{
ret = 0;
goto done;
bv->bv_val != NULL; bv++ )
{
if ( ! access_allowed( op, e,
- mlist->sml_desc, bv, ACL_WDEL, &state ) )
+ mlist->sml_desc, bv,
+ ( mlist->sml_flags & SLAP_MOD_MANAGING ) ? ACL_MANAGE : ACL_WDEL,
+ &state ) )
{
ret = 0;
goto done;
return( ret );
}
-static int
-aci_get_part(
+int
+acl_get_part(
struct berval *list,
int ix,
char sep,
return bv->bv_len;
}
-typedef struct aci_set_gather_t {
+typedef struct acl_set_gather_t {
SetCookie *cookie;
BerVarray bvals;
-} aci_set_gather_t;
+} acl_set_gather_t;
static int
-aci_set_cb_gather( Operation *op, SlapReply *rs )
+acl_set_cb_gather( Operation *op, SlapReply *rs )
{
- aci_set_gather_t *p = (aci_set_gather_t *)op->o_callback->sc_private;
+ acl_set_gather_t *p = (acl_set_gather_t *)op->o_callback->sc_private;
if ( rs->sr_type == REP_SEARCH ) {
BerValue bvals[ 2 ];
}
}
- if ( bvals ) {
+ if ( bvalsp ) {
p->bvals = slap_set_join( p->cookie, p->bvals,
( '|' | SLAP_SET_RREF ), bvalsp );
}
}
BerVarray
-aci_set_gather( SetCookie *cookie, struct berval *name, AttributeDescription *desc )
+acl_set_gather( SetCookie *cookie, struct berval *name, AttributeDescription *desc )
{
- AciSetCookie *cp = (AciSetCookie *)cookie;
+ AclSetCookie *cp = (AclSetCookie *)cookie;
int rc = 0;
LDAPURLDesc *ludp = NULL;
Operation op2 = { 0 };
SlapReply rs = {REP_RESULT};
AttributeName anlist[ 2 ], *anlistp = NULL;
int nattrs = 0;
- slap_callback cb = { NULL, aci_set_cb_gather, NULL, NULL };
- aci_set_gather_t p = { 0 };
+ slap_callback cb = { NULL, acl_set_cb_gather, NULL, NULL };
+ acl_set_gather_t p = { 0 };
const char *text = NULL;
static struct berval defaultFilter_bv = BER_BVC( "(objectClass=*)" );
* also return the syntax or some "comparison cookie".
*/
if ( strncasecmp( name->bv_val, "ldap:///", STRLENOF( "ldap:///" ) ) != 0 ) {
- return aci_set_gather2( cookie, name, desc );
+ return acl_set_gather2( cookie, name, desc );
}
rc = ldap_url_parse( name->bv_val, &ludp );
/* Grab the searchbase and see if an appropriate database can be found */
ber_str2bv( ludp->lud_dn, 0, 0, &op2.o_req_dn );
rc = dnNormalize( 0, NULL, NULL, &op2.o_req_dn,
- &op2.o_req_ndn, cp->op->o_tmpmemctx );
+ &op2.o_req_ndn, cp->asc_op->o_tmpmemctx );
BER_BVZERO( &op2.o_req_dn );
if ( rc != LDAP_SUCCESS ) {
goto url_done;
/* Grab the filter */
if ( ludp->lud_filter ) {
ber_str2bv_x( ludp->lud_filter, 0, 0, &op2.ors_filterstr,
- cp->op->o_tmpmemctx );
+ cp->asc_op->o_tmpmemctx );
} else {
op2.ors_filterstr = defaultFilter_bv;
}
- op2.ors_filter = str2filter_x( cp->op, op2.ors_filterstr.bv_val );
+ op2.ors_filter = str2filter_x( cp->asc_op, op2.ors_filterstr.bv_val );
if ( op2.ors_filter == NULL ) {
rc = LDAP_PROTOCOL_ERROR;
goto url_done;
;
anlistp = slap_sl_malloc( sizeof( AttributeName ) * ( nattrs + 2 ),
- cp->op->o_tmpmemctx );
+ cp->asc_op->o_tmpmemctx );
for ( ; ludp->lud_attrs[ nattrs ]; nattrs++ ) {
ber_str2bv( ludp->lud_attrs[ nattrs ], 0, 0, &anlistp[ nattrs ].an_name );
p.cookie = cookie;
- op2.o_hdr = cp->op->o_hdr;
+ op2.o_hdr = cp->asc_op->o_hdr;
op2.o_tag = LDAP_REQ_SEARCH;
op2.o_ndn = op2.o_bd->be_rootndn;
op2.o_callback = &cb;
- op2.o_time = slap_get_time();
+ slap_op_time( &op2.o_time, &op2.o_tincr );
op2.o_do_not_cache = 1;
op2.o_is_auth_check = 0;
- ber_dupbv_x( &op2.o_req_dn, &op2.o_req_ndn, cp->op->o_tmpmemctx );
+ ber_dupbv_x( &op2.o_req_dn, &op2.o_req_ndn, cp->asc_op->o_tmpmemctx );
op2.ors_slimit = SLAP_NO_LIMIT;
op2.ors_tlimit = SLAP_NO_LIMIT;
op2.ors_attrs = anlistp;
op2.ors_attrsonly = 0;
- op2.o_private = cp->op->o_private;
+ op2.o_private = cp->asc_op->o_private;
cb.sc_private = &p;
url_done:;
if ( op2.ors_filter ) {
- filter_free_x( cp->op, op2.ors_filter );
+ filter_free_x( cp->asc_op, op2.ors_filter );
}
if ( !BER_BVISNULL( &op2.o_req_ndn ) ) {
- slap_sl_free( op2.o_req_ndn.bv_val, cp->op->o_tmpmemctx );
+ slap_sl_free( op2.o_req_ndn.bv_val, cp->asc_op->o_tmpmemctx );
}
if ( !BER_BVISNULL( &op2.o_req_dn ) ) {
- slap_sl_free( op2.o_req_dn.bv_val, cp->op->o_tmpmemctx );
+ slap_sl_free( op2.o_req_dn.bv_val, cp->asc_op->o_tmpmemctx );
}
if ( ludp ) {
ldap_free_urldesc( ludp );
}
if ( anlistp && anlistp != anlist ) {
- slap_sl_free( anlistp, cp->op->o_tmpmemctx );
+ slap_sl_free( anlistp, cp->asc_op->o_tmpmemctx );
}
return p.bvals;
}
BerVarray
-aci_set_gather2( SetCookie *cookie, struct berval *name, AttributeDescription *desc )
+acl_set_gather2( SetCookie *cookie, struct berval *name, AttributeDescription *desc )
{
- AciSetCookie *cp = (AciSetCookie *)cookie;
+ AclSetCookie *cp = (AclSetCookie *)cookie;
BerVarray bvals = NULL;
struct berval ndn;
int rc = 0;
* plain strings, since syntax is not known. It should
* also return the syntax or some "comparison cookie".
*/
- rc = dnNormalize( 0, NULL, NULL, name, &ndn, cp->op->o_tmpmemctx );
+ rc = dnNormalize( 0, NULL, NULL, name, &ndn, cp->asc_op->o_tmpmemctx );
if ( rc == LDAP_SUCCESS ) {
if ( desc == slap_schema.si_ad_entryDN ) {
bvals = (BerVarray)slap_sl_malloc( sizeof( BerValue ) * 2,
- cp->op->o_tmpmemctx );
+ cp->asc_op->o_tmpmemctx );
bvals[ 0 ] = ndn;
BER_BVZERO( &bvals[ 1 ] );
BER_BVZERO( &ndn );
} else {
- backend_attribute( cp->op,
- cp->e, &ndn, desc, &bvals, ACL_NONE );
+ backend_attribute( cp->asc_op,
+ cp->asc_e, &ndn, desc, &bvals, ACL_NONE );
}
if ( !BER_BVISNULL( &ndn ) ) {
- slap_sl_free( ndn.bv_val, cp->op->o_tmpmemctx );
+ slap_sl_free( ndn.bv_val, cp->asc_op->o_tmpmemctx );
}
}
return bvals;
}
-static int
-aci_match_set (
+int
+acl_match_set (
struct berval *subj,
Operation *op,
Entry *e,
- int setref
-)
+ struct berval *default_set_attribute )
{
struct berval set = BER_BVNULL;
int rc = 0;
- AciSetCookie cookie;
+ AclSetCookie cookie;
- if ( setref == 0 ) {
+ if ( default_set_attribute == NULL ) {
ber_dupbv_x( &set, subj, op->o_tmpmemctx );
} else {
struct berval subjdn, ndn = BER_BVNULL;
struct berval setat;
- BerVarray bvals;
+ BerVarray bvals=NULL;
const char *text;
AttributeDescription *desc = NULL;
/* format of string is "entry/setAttrName" */
- if ( aci_get_part( subj, 0, '/', &subjdn ) < 0 ) {
+ if ( acl_get_part( subj, 0, '/', &subjdn ) < 0 ) {
return 0;
}
- if ( aci_get_part( subj, 1, '/', &setat ) < 0 ) {
- setat = aci_bv_set_attr;
+ if ( acl_get_part( subj, 1, '/', &setat ) < 0 ) {
+ setat = *default_set_attribute;
}
/*
}
if ( !BER_BVISNULL( &set ) ) {
- cookie.op = op;
- cookie.e = e;
- rc = ( slap_set_filter( aci_set_gather, (SetCookie *)&cookie, &set,
+ cookie.asc_op = op;
+ cookie.asc_e = e;
+ rc = ( slap_set_filter(
+ acl_set_gather,
+ (SetCookie *)&cookie, &set,
&op->o_ndn, &e->e_nname, NULL ) > 0 );
slap_sl_free( set.bv_val, op->o_tmpmemctx );
}
return(rc);
}
-#ifdef SLAPD_ACI_ENABLED
-static int
-aci_list_map_rights(
- struct berval *list )
-{
- struct berval bv;
- slap_access_t mask;
- int i;
-
- ACL_INIT(mask);
- for (i = 0; aci_get_part(list, i, ',', &bv) >= 0; i++) {
- if (bv.bv_len <= 0)
- continue;
- switch (*bv.bv_val) {
- case 'c':
- ACL_PRIV_SET(mask, ACL_PRIV_COMPARE);
- break;
- case 's':
- /* **** NOTE: draft-ietf-ldapext-aci-model-0.3.txt defines
- * the right 's' to mean "set", but in the examples states
- * that the right 's' means "search". The latter definition
- * is used here.
- */
- ACL_PRIV_SET(mask, ACL_PRIV_SEARCH);
- break;
- case 'r':
- ACL_PRIV_SET(mask, ACL_PRIV_READ);
- break;
- case 'w':
- ACL_PRIV_SET(mask, ACL_PRIV_WRITE);
- break;
- case 'x':
- /* **** NOTE: draft-ietf-ldapext-aci-model-0.3.txt does not
- * define any equivalent to the AUTH right, so I've just used
- * 'x' for now.
- */
- ACL_PRIV_SET(mask, ACL_PRIV_AUTH);
- break;
- default:
- break;
- }
-
- }
- return(mask);
-}
-
-static int
-aci_list_has_attr(
- struct berval *list,
- const struct berval *attr,
- struct berval *val )
-{
- struct berval bv, left, right;
- int i;
-
- for (i = 0; aci_get_part(list, i, ',', &bv) >= 0; i++) {
- if (aci_get_part(&bv, 0, '=', &left) < 0
- || aci_get_part(&bv, 1, '=', &right) < 0)
- {
- if (ber_bvstrcasecmp(attr, &bv) == 0)
- return(1);
- } else if (val == NULL) {
- if (ber_bvstrcasecmp(attr, &left) == 0)
- return(1);
- } else {
- if (ber_bvstrcasecmp(attr, &left) == 0) {
- /* this is experimental code that implements a
- * simple (prefix) match of the attribute value.
- * the ACI draft does not provide for aci's that
- * apply to specific values, but it would be
- * nice to have. If the <attr> part of an aci's
- * rights list is of the form <attr>=<value>,
- * that means the aci applies only to attrs with
- * the given value. Furthermore, if the attr is
- * of the form <attr>=<value>*, then <value> is
- * treated as a prefix, and the aci applies to
- * any value with that prefix.
- *
- * Ideally, this would allow r.e. matches.
- */
- if (aci_get_part(&right, 0, '*', &left) < 0
- || right.bv_len <= left.bv_len)
- {
- if (ber_bvstrcasecmp(val, &right) == 0)
- return(1);
- } else if (val->bv_len >= left.bv_len) {
- if (strncasecmp( val->bv_val, left.bv_val, left.bv_len ) == 0)
- return(1);
- }
- }
- }
- }
- return(0);
-}
-
-static slap_access_t
-aci_list_get_attr_rights(
- struct berval *list,
- const struct berval *attr,
- struct berval *val )
-{
- struct berval bv;
- slap_access_t mask;
- int i;
-
- /* loop through each rights/attr pair, skip first part (action) */
- ACL_INIT(mask);
- for (i = 1; aci_get_part(list, i + 1, ';', &bv) >= 0; i += 2) {
- if (aci_list_has_attr(&bv, attr, val) == 0)
- continue;
- if (aci_get_part(list, i, ';', &bv) < 0)
- continue;
- mask |= aci_list_map_rights(&bv);
- }
- return(mask);
-}
-
-static int
-aci_list_get_rights(
- struct berval *list,
- const struct berval *attr,
- struct berval *val,
- slap_access_t *grant,
- slap_access_t *deny )
-{
- struct berval perm, actn;
- slap_access_t *mask;
- int i, found;
-
- if (attr == NULL || attr->bv_len == 0
- || ber_bvstrcasecmp( attr, &aci_bv_entry ) == 0) {
- attr = &aci_bv_br_entry;
- }
-
- found = 0;
- ACL_INIT(*grant);
- ACL_INIT(*deny);
- /* loop through each permissions clause */
- for (i = 0; aci_get_part(list, i, '$', &perm) >= 0; i++) {
- if (aci_get_part(&perm, 0, ';', &actn) < 0)
- continue;
- if (ber_bvstrcasecmp( &aci_bv_grant, &actn ) == 0) {
- mask = grant;
- } else if (ber_bvstrcasecmp( &aci_bv_deny, &actn ) == 0) {
- mask = deny;
- } else {
- continue;
- }
-
- found = 1;
- *mask |= aci_list_get_attr_rights(&perm, attr, val);
- *mask |= aci_list_get_attr_rights(&perm, &aci_bv_br_all, NULL);
- }
- return(found);
-}
-
-static int
-aci_group_member (
- struct berval *subj,
- struct berval *defgrpoc,
- struct berval *defgrpat,
- Operation *op,
- Entry *e,
- int nmatch,
- regmatch_t *matches
-)
-{
- struct berval subjdn;
- struct berval grpoc;
- struct berval grpat;
- ObjectClass *grp_oc = NULL;
- AttributeDescription *grp_ad = NULL;
- const char *text;
- int rc;
-
- /* format of string is "group/objectClassValue/groupAttrName" */
- if (aci_get_part(subj, 0, '/', &subjdn) < 0) {
- return(0);
- }
-
- if (aci_get_part(subj, 1, '/', &grpoc) < 0) {
- grpoc = *defgrpoc;
- }
-
- if (aci_get_part(subj, 2, '/', &grpat) < 0) {
- grpat = *defgrpat;
- }
-
- rc = slap_bv2ad( &grpat, &grp_ad, &text );
- if( rc != LDAP_SUCCESS ) {
- rc = 0;
- goto done;
- }
- rc = 0;
-
- grp_oc = oc_bvfind( &grpoc );
-
- if (grp_oc != NULL && grp_ad != NULL ) {
- char buf[ACL_BUF_SIZE];
- struct berval bv, ndn;
- bv.bv_len = sizeof( buf ) - 1;
- bv.bv_val = (char *)&buf;
- if ( string_expand(&bv, &subjdn,
- e->e_ndn, nmatch, matches) )
- {
- rc = LDAP_OTHER;
- goto done;
- }
- 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 );
- slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
- }
- }
-
-done:
- return(rc);
-}
-
-static int
-aci_mask(
- Operation *op,
- Entry *e,
- AttributeDescription *desc,
- struct berval *val,
- struct berval *aci,
- int nmatch,
- regmatch_t *matches,
- slap_access_t *grant,
- slap_access_t *deny,
- slap_aci_scope_t asserted_scope
-)
-{
- struct berval bv, scope, perms, type, sdn;
- int rc;
-
-
- assert( !BER_BVISNULL( &desc->ad_cname ) );
-
- /* parse an aci of the form:
- oid # scope # action;rights;attr;rights;attr
- $ action;rights;attr;rights;attr # type # subject
-
- [NOTE: the following comment is very outdated,
- as the draft version it refers to (Ando, 2004-11-20)].
-
- See draft-ietf-ldapext-aci-model-04.txt section 9.1 for
- a full description of the format for this attribute.
- Differences: "this" in the draft is "self" here, and
- "self" and "public" is in the position of type.
-
- <scope> = {entry|children|subtree}
- <type> = {public|users|access-id|subtree|onelevel|children|
- self|dnattr|group|role|set|set-ref}
-
- This routine now supports scope={ENTRY,CHILDREN}
- with the semantics:
- - ENTRY applies to "entry" and "subtree";
- - CHILDREN aplies to "children" and "subtree"
- */
-
- /* check that the aci has all 5 components */
- if ( aci_get_part( aci, 4, '#', NULL ) < 0 ) {
- return 0;
- }
-
- /* check that the aci family is supported */
- if ( aci_get_part( aci, 0, '#', &bv ) < 0 ) {
- return 0;
- }
-
- /* check that the scope matches */
- if ( aci_get_part( aci, 1, '#', &scope ) < 0 ) {
- return 0;
- }
-
- /* note: scope can be either ENTRY or CHILDREN;
- * they respectively match "entry" and "children" in bv
- * both match "subtree" */
- switch ( asserted_scope ) {
- case SLAP_ACI_SCOPE_ENTRY:
- if ( ber_bvstrcasecmp( &scope, &aci_bv_entry ) != 0
- && ber_bvstrcasecmp( &scope, &aci_bv_subtree ) != 0 )
- {
- return 0;
- }
- break;
-
- case SLAP_ACI_SCOPE_CHILDREN:
- if ( ber_bvstrcasecmp( &scope, &aci_bv_children ) != 0
- && ber_bvstrcasecmp( &scope, &aci_bv_subtree ) != 0 )
- {
- return 0;
- }
- break;
-
- default:
- return 0;
- }
-
- /* get the list of permissions clauses, bail if empty */
- if ( aci_get_part( aci, 2, '#', &perms ) <= 0 ) {
- return 0;
- }
-
- /* check if any permissions allow desired access */
- if ( aci_list_get_rights( &perms, &desc->ad_cname, val, grant, deny ) == 0 ) {
- return 0;
- }
-
- /* see if we have a DN match */
- if ( aci_get_part( aci, 3, '#', &type ) < 0 ) {
- return 0;
- }
-
- /* see if we have a public (i.e. anonymous) access */
- if ( ber_bvstrcasecmp( &aci_bv_public, &type ) == 0 ) {
- return 1;
- }
-
- /* otherwise require an identity */
- if ( BER_BVISNULL( &op->o_ndn ) || BER_BVISEMPTY( &op->o_ndn ) ) {
- return 0;
- }
-
- /* see if we have a users access */
- if ( ber_bvstrcasecmp( &aci_bv_users, &type ) == 0 ) {
- return 1;
- }
-
- /* 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 = type.bv_val + type.bv_len + STRLENOF( "#" );
- sdn.bv_len = aci->bv_len - ( sdn.bv_val - aci->bv_val );
-
- if ( ber_bvstrcasecmp( &aci_bv_access_id, &type ) == 0 ) {
- struct berval ndn;
-
- rc = dnNormalize( 0, NULL, NULL, &sdn, &ndn, op->o_tmpmemctx );
- if ( rc != LDAP_SUCCESS ) {
- return 0;
- }
-
- if ( dn_match( &op->o_ndn, &ndn ) ) {
- rc = 1;
- }
- slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
-
- return rc;
-
- } else if ( ber_bvstrcasecmp( &aci_bv_subtree, &type ) == 0 ) {
- struct berval ndn;
-
- rc = dnNormalize( 0, NULL, NULL, &sdn, &ndn, op->o_tmpmemctx );
- if ( rc != LDAP_SUCCESS ) {
- return 0;
- }
-
- if ( dnIsSuffix( &op->o_ndn, &ndn ) ) {
- rc = 1;
- }
- slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
-
- return rc;
-
- } else if ( ber_bvstrcasecmp( &aci_bv_onelevel, &type ) == 0 ) {
- struct berval ndn, pndn;
-
- rc = dnNormalize( 0, NULL, NULL, &sdn, &ndn, op->o_tmpmemctx );
- if ( rc != LDAP_SUCCESS ) {
- return 0;
- }
-
- dnParent( &ndn, &pndn );
-
- if ( dn_match( &op->o_ndn, &pndn ) ) {
- rc = 1;
- }
- slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
-
- return rc;
-
- } else if ( ber_bvstrcasecmp( &aci_bv_children, &type ) == 0 ) {
- struct berval ndn;
-
- rc = dnNormalize( 0, NULL, NULL, &sdn, &ndn, op->o_tmpmemctx );
- if ( rc != LDAP_SUCCESS ) {
- return 0;
- }
-
- if ( !dn_match( &op->o_ndn, &ndn )
- && dnIsSuffix( &op->o_ndn, &ndn ) )
- {
- rc = 1;
- }
- slap_sl_free( ndn.bv_val, op->o_tmpmemctx );
-
- return rc;
-
- } else if ( ber_bvstrcasecmp( &aci_bv_self, &type ) == 0 ) {
- if ( dn_match( &op->o_ndn, &e->e_nname ) ) {
- return 1;
- }
-
- } else if ( ber_bvstrcasecmp( &aci_bv_dnattr, &type ) == 0 ) {
- Attribute *at;
- AttributeDescription *ad = NULL;
- const char *text;
-
- rc = slap_bv2ad( &sdn, &ad, &text );
-
- if( rc != LDAP_SUCCESS ) {
- return 0;
- }
-
- rc = 0;
-
- for ( at = attrs_find( e->e_attrs, ad );
- at != NULL;
- at = attrs_find( at->a_next, ad ) )
- {
- if ( value_find_ex( ad,
- SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
- SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
- at->a_nvals,
- &op->o_ndn, op->o_tmpmemctx ) == 0 )
- {
- rc = 1;
- break;
- }
- }
-
- return rc;
-
- } else if ( ber_bvstrcasecmp( &aci_bv_group, &type ) == 0 ) {
- if ( aci_group_member( &sdn, &aci_bv_group_class,
- &aci_bv_group_attr, op, e, nmatch, matches ) )
- {
- return 1;
- }
-
- } else if ( ber_bvstrcasecmp( &aci_bv_role, &type ) == 0 ) {
- if ( aci_group_member( &sdn, &aci_bv_role_class,
- &aci_bv_role_attr, op, e, nmatch, matches ) )
- {
- return 1;
- }
-
- } else if ( ber_bvstrcasecmp( &aci_bv_set, &type ) == 0 ) {
- if ( aci_match_set( &sdn, op, e, 0 ) ) {
- return 1;
- }
-
- } else if ( ber_bvstrcasecmp( &aci_bv_set_ref, &type ) == 0 ) {
- if ( aci_match_set( &sdn, op, e, 1 ) ) {
- return 1;
- }
- }
-
- return 0;
-}
-
-#ifdef SLAP_DYNACL
-/*
- * FIXME: there is a silly dependence that makes it difficult
- * to move ACIs in a run-time loadable module under the "dynacl"
- * umbrella, because sets share some helpers with ACIs.
- */
-static int
-dynacl_aci_parse( const char *fname, int lineno, slap_style_t sty, const char *right, void **privp )
-{
- AttributeDescription *ad = NULL;
- const char *text = NULL;
-
- if ( sty != ACL_STYLE_REGEX && sty != ACL_STYLE_BASE ) {
- fprintf( stderr, "%s: line %d: "
- "inappropriate style \"%s\" in \"aci\" by clause\n",
- fname, lineno, sty );
- return -1;
- }
-
- if ( right != NULL && *right != '\0' ) {
- if ( slap_str2ad( right, &ad, &text ) != LDAP_SUCCESS ) {
- fprintf( stderr,
- "%s: line %d: aci \"%s\": %s\n",
- fname, lineno, right, text );
- return -1;
- }
-
- } else {
- ad = slap_schema.si_ad_aci;
- }
-
- if ( !is_at_syntax( ad->ad_type, SLAPD_ACI_SYNTAX) ) {
- fprintf( stderr, "%s: line %d: "
- "aci \"%s\": inappropriate syntax: %s\n",
- fname, lineno, right,
- ad->ad_type->sat_syntax_oid );
- return -1;
- }
-
- *privp = (void *)ad;
-
- return 0;
-}
-
-static int
-dynacl_aci_unparse( void *priv, struct berval *bv )
-{
- AttributeDescription *ad = ( AttributeDescription * )priv;
- char *ptr;
-
- assert( ad );
-
- bv->bv_val = ch_malloc( STRLENOF(" aci=") + ad->ad_cname.bv_len + 1 );
- ptr = lutil_strcopy( bv->bv_val, " aci=" );
- ptr = lutil_strcopy( ptr, ad->ad_cname.bv_val );
- bv->bv_len = ptr - bv->bv_val;
-
- return 0;
-}
-
-
-static int
-dynacl_aci_mask(
- void *priv,
- Operation *op,
- Entry *e,
- AttributeDescription *desc,
- struct berval *val,
- int nmatch,
- regmatch_t *matches,
- slap_access_t *grantp,
- slap_access_t *denyp )
-{
- AttributeDescription *ad = ( AttributeDescription * )priv;
- Attribute *at;
- slap_access_t tgrant, tdeny, grant, deny;
-#ifdef LDAP_DEBUG
- char accessmaskbuf[ACCESSMASK_MAXLEN];
- char accessmaskbuf1[ACCESSMASK_MAXLEN];
-#endif /* LDAP_DEBUG */
-
- /* start out with nothing granted, nothing denied */
- ACL_INIT(tgrant);
- ACL_INIT(tdeny);
-
- /* get the aci attribute */
- at = attr_find( e->e_attrs, ad );
- if ( at != NULL ) {
- int i;
-
- /* 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 ) {
- struct berval parent_ndn;
-
-#if 1
- /* to solve the chicken'n'egg problem of accessing
- * the OpenLDAPaci attribute, the direct access
- * to the entry's attribute is unchecked; however,
- * further accesses to OpenLDAPaci values in the
- * ancestors occur through backend_attribute(), i.e.
- * with the identity of the operation, requiring
- * further access checking. For uniformity, this
- * makes further requests occur as the rootdn, if
- * any, i.e. searching for the OpenLDAPaci attribute
- * is considered an internal search. If this is not
- * acceptable, then the same check needs be performed
- * when accessing the entry's attribute. */
- Operation op2 = *op;
-
- if ( !BER_BVISNULL( &op->o_bd->be_rootndn ) ) {
- op2.o_dn = op->o_bd->be_rootdn;
- op2.o_ndn = op->o_bd->be_rootndn;
- }
-#endif
-
- dnParent( &e->e_nname, &parent_ndn );
- while ( !BER_BVISEMPTY( &parent_ndn ) ){
- int i;
- BerVarray bvals = NULL;
- int ret, stop;
-
- Debug( LDAP_DEBUG_ACL, "checking ACI of \"%s\"\n", parent_ndn.bv_val, 0, 0 );
- ret = backend_attribute( &op2, NULL, &parent_ndn, ad, &bvals, ACL_AUTH );
-
- switch ( ret ) {
- case LDAP_SUCCESS :
- stop = 0;
- if ( !bvals ) {
- break;
- }
-
- for ( i = 0; !BER_BVISNULL( &bvals[i] ); i++) {
- 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 );
- }
- }
-
- *grantp = tgrant;
- *denyp = tdeny;
-
- return 0;
-}
-
-/* need to register this at some point */
-static slap_dynacl_t dynacl_aci = {
- "aci",
- dynacl_aci_parse,
- dynacl_aci_unparse,
- dynacl_aci_mask,
- NULL,
- NULL,
- NULL
-};
-
-#endif /* SLAP_DYNACL */
-
-#endif /* SLAPD_ACI_ENABLED */
-
#ifdef SLAP_DYNACL
/*
}
#endif /* SLAP_DYNACL */
+/*
+ * statically built-in dynamic ACL initialization
+ */
+static int (*acl_init_func[])( void ) = {
+#ifdef SLAPD_ACI_ENABLED
+#ifdef SLAP_DYNACL
+ dynacl_aci_init,
+#else /* !SLAP_DYNACL */
+ aci_init,
+#endif /* !SLAP_DYNACL */
+#endif /* SLAPD_ACI_ENABLED */
+
+ NULL
+};
+
int
acl_init( void )
{
- int i, rc;
-#ifdef SLAP_DYNACL
- slap_dynacl_t *known_dynacl[] = {
-#ifdef SLAPD_ACI_ENABLED
- &dynacl_aci,
-#endif /* SLAPD_ACI_ENABLED */
- NULL
- };
+ int i, rc;
- for ( i = 0; known_dynacl[ i ]; i++ ) {
- rc = slap_dynacl_register( known_dynacl[ i ] );
- if ( rc ) {
+ for ( i = 0; acl_init_func[ i ] != NULL; i++ ) {
+ rc = (*(acl_init_func[ i ]))();
+ if ( rc != 0 ) {
return rc;
}
}
-#endif /* SLAP_DYNACL */
return 0;
}
-static int
-string_expand(
+int
+acl_string_expand(
struct berval *bv,
struct berval *pat,
char *match,
*dp = '\0';
bv->bv_len = size;
- Debug( LDAP_DEBUG_TRACE, "=> string_expand: pattern: %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
- Debug( LDAP_DEBUG_TRACE, "=> string_expand: expanded: %s\n", bv->bv_val, 0, 0 );
+ Debug( LDAP_DEBUG_TRACE, "=> acl_string_expand: pattern: %.*s\n", (int)pat->bv_len, pat->bv_val, 0 );
+ Debug( LDAP_DEBUG_TRACE, "=> acl_string_expand: expanded: %s\n", bv->bv_val, 0, 0 );
return 0;
}
str = "";
};
- string_expand( &bv, pat, buf, nmatch, matches );
+ acl_string_expand( &bv, pat, buf, nmatch, matches );
rc = regcomp( &re, newbuf, REG_EXTENDED|REG_ICASE );
if ( rc ) {
char error[ACL_BUF_SIZE];
projects / openldap / blobdiff