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openldap/servers/slapd/back-ldap/config.c
Pierangelo Masarati 6d7689b7e3 check we don't exceed userland with config param bits
2005-11-19 18:01:28 +00:00

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/* config.c - ldap backend configuration file routine */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2003-2005 The OpenLDAP Foundation.
* Portions Copyright 1999-2003 Howard Chu.
* Portions Copyright 2000-2003 Pierangelo Masarati.
* 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>.
*/
/* ACKNOWLEDGEMENTS:
* This work was initially developed by the Howard Chu for inclusion
* in OpenLDAP Software and subsequently enhanced by Pierangelo
* Masarati.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/ctype.h>
#include <ac/socket.h>
#include "slap.h"
#include "config.h"
#include "back-ldap.h"
#include "lutil.h"
#include "ldif.h"
#undef ldap_debug
/* for advanced URL parsing */
#include "../../../libraries/libldap/ldap-int.h"
static SLAP_EXTOP_MAIN_FN ldap_back_exop_whoami;
static ConfigDriver ldap_back_cf_gen;
enum {
LDAP_BACK_CFG_URI = 1,
LDAP_BACK_CFG_TLS,
LDAP_BACK_CFG_ACL_AUTHCDN,
LDAP_BACK_CFG_ACL_PASSWD,
LDAP_BACK_CFG_ACL_METHOD,
LDAP_BACK_CFG_ACL_BIND,
LDAP_BACK_CFG_IDASSERT_MODE,
LDAP_BACK_CFG_IDASSERT_AUTHCDN,
LDAP_BACK_CFG_IDASSERT_PASSWD,
LDAP_BACK_CFG_IDASSERT_AUTHZFROM,
LDAP_BACK_CFG_IDASSERT_METHOD,
LDAP_BACK_CFG_IDASSERT_BIND,
LDAP_BACK_CFG_REBIND,
LDAP_BACK_CFG_CHASE,
LDAP_BACK_CFG_T_F,
LDAP_BACK_CFG_WHOAMI,
LDAP_BACK_CFG_TIMEOUT,
LDAP_BACK_CFG_REWRITE,
LDAP_BACK_CFG_LAST
};
static ConfigTable ldapcfg[] = {
{ "uri", "uri", 2, 2, 0,
ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_URI,
ldap_back_cf_gen, "( OLcfgDbAt:0.14 "
"NAME 'olcDbURI' "
"DESC 'URI (list) for remote DSA' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
{ "tls", "what", 2, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_TLS,
ldap_back_cf_gen, "( OLcfgDbAt:3.1 "
"NAME 'olcDbStartTLS' "
"DESC 'StartTLS' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
{ "acl-authcDN", "DN", 2, 2, 0,
ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_ACL_AUTHCDN,
ldap_back_cf_gen, "( OLcfgDbAt:3.2 "
"NAME 'olcDbACLAuthcDn' "
"DESC 'Remote ACL administrative identity' "
"OBSOLETE "
"SYNTAX OMsDN "
"SINGLE-VALUE )",
NULL, NULL },
/* deprecated, will be removed; aliases "acl-authcDN" */
{ "binddn", "DN", 2, 2, 0,
ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_ACL_AUTHCDN,
ldap_back_cf_gen, NULL, NULL, NULL },
{ "acl-passwd", "cred", 2, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_ACL_PASSWD,
ldap_back_cf_gen, "( OLcfgDbAt:3.3 "
"NAME 'olcDbACLPasswd' "
"DESC 'Remote ACL administrative identity credentials' "
"OBSOLETE "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
/* deprecated, will be removed; aliases "acl-passwd" */
{ "bindpw", "cred", 2, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_ACL_PASSWD,
ldap_back_cf_gen, NULL, NULL, NULL },
/* deprecated, will be removed; aliases "acl-bind" */
{ "acl-method", "args", 2, 0, 0,
ARG_MAGIC|LDAP_BACK_CFG_ACL_METHOD,
ldap_back_cf_gen, NULL, NULL, NULL },
{ "acl-bind", "args", 2, 0, 0,
ARG_MAGIC|LDAP_BACK_CFG_ACL_BIND,
ldap_back_cf_gen, "( OLcfgDbAt:3.4 "
"NAME 'olcDbACLBind' "
"DESC 'Remote ACL administrative identity auth bind configuration' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
{ "idassert-authcDN", "DN", 2, 2, 0,
ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_AUTHCDN,
ldap_back_cf_gen, "( OLcfgDbAt:3.5 "
"NAME 'olcDbIDAssertAuthcDn' "
"DESC 'Remote Identity Assertion administrative identity' "
"OBSOLETE "
"SYNTAX OMsDN "
"SINGLE-VALUE )",
NULL, NULL },
/* deprecated, will be removed; partially aliases "idassert-authcDN" */
{ "proxyauthzdn", "DN", 2, 2, 0,
ARG_DN|ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_AUTHCDN,
ldap_back_cf_gen, NULL, NULL, NULL },
{ "idassert-passwd", "cred", 2, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_PASSWD,
ldap_back_cf_gen, "( OLcfgDbAt:3.6 "
"NAME 'olcDbIDAssertPasswd' "
"DESC 'Remote Identity Assertion administrative identity credentials' "
"OBSOLETE "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
/* deprecated, will be removed; partially aliases "idassert-passwd" */
{ "proxyauthzpw", "cred", 2, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_PASSWD,
ldap_back_cf_gen, NULL, NULL, NULL },
{ "idassert-bind", "args", 2, 0, 0,
ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_BIND,
ldap_back_cf_gen, "( OLcfgDbAt:3.7 "
"NAME 'olcDbIDAssertBind' "
"DESC 'Remote Identity Assertion administrative identity auth bind configuration' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
{ "idassert-method", "args", 2, 0, 0,
ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_METHOD,
ldap_back_cf_gen, NULL, NULL, NULL },
{ "idassert-mode", "mode>|u:<user>|[dn:]<DN", 2, 0, 0,
ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_MODE,
ldap_back_cf_gen, "( OLcfgDbAt:3.8 "
"NAME 'olcDbIDAssertMode' "
"DESC 'Remote Identity Assertion mode' "
"OBSOLETE "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE)",
NULL, NULL },
{ "idassert-authzFrom", "authzRule", 2, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_IDASSERT_AUTHZFROM,
ldap_back_cf_gen, "( OLcfgDbAt:3.9 "
"NAME 'olcDbIDAssertAuthzFrom' "
"DESC 'Remote Identity Assertion authz rules' "
"SYNTAX OMsDirectoryString "
"X-ORDERED 'VALUES' )",
NULL, NULL },
{ "rebind-as-user", "NO|yes", 1, 2, 0,
ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_REBIND,
ldap_back_cf_gen, "( OLcfgDbAt:3.10 "
"NAME 'olcDbRebindAsUser' "
"DESC 'Rebind as user' "
"SYNTAX OMsBoolean "
"SINGLE-VALUE )",
NULL, NULL },
{ "chase-referrals", "YES|no", 2, 2, 0,
ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_CHASE,
ldap_back_cf_gen, "( OLcfgDbAt:3.11 "
"NAME 'olcDbChaseReferrals' "
"DESC 'Chase referrals' "
"SYNTAX OMsBoolean "
"SINGLE-VALUE )",
NULL, NULL },
{ "t-f-support", "NO|yes|discover", 2, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_T_F,
ldap_back_cf_gen, "( OLcfgDbAt:3.12 "
"NAME 'olcDbTFSupport' "
"DESC 'Absolute filters support' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
{ "proxy-whoami", "NO|yes", 1, 2, 0,
ARG_MAGIC|ARG_ON_OFF|LDAP_BACK_CFG_WHOAMI,
ldap_back_cf_gen, "( OLcfgDbAt:3.13 "
"NAME 'olcDbProxyWhoAmI' "
"DESC 'Proxy whoAmI exop' "
"SYNTAX OMsBoolean "
"SINGLE-VALUE )",
NULL, NULL },
{ "timeout", "timeout", 0, 2, 0,
ARG_MAGIC|LDAP_BACK_CFG_TIMEOUT,
ldap_back_cf_gen, "( OLcfgDbAt:3.14 "
"NAME 'olcDbTimeout' "
"DESC 'Per-operation timeouts' "
"SYNTAX OMsDirectoryString "
"SINGLE-VALUE )",
NULL, NULL },
{ "suffixmassage", "[virtual]> <real", 2, 3, 0,
ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_REWRITE,
ldap_back_cf_gen, NULL, NULL, NULL },
{ "map", "attribute|objectClass> [*|<local>] *|<remote", 3, 4, 0,
ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_REWRITE,
ldap_back_cf_gen, NULL, NULL, NULL },
{ "rewrite", "<arglist>", 2, 4, STRLENOF( "rewrite" ),
ARG_STRING|ARG_MAGIC|LDAP_BACK_CFG_REWRITE,
ldap_back_cf_gen, NULL, NULL, NULL },
{ NULL, NULL, 0, 0, 0, ARG_IGNORED,
NULL, NULL, NULL, NULL }
};
static ConfigOCs ldapocs[] = {
{ "( OLcfgDbOc:3.1 "
"NAME 'olcLDAPConfig' "
"DESC 'LDAP backend configuration' "
"SUP olcDatabaseConfig "
"MUST olcDbURI "
"MAY ( olcDbStartTLS "
"$ olcDbACLAuthcDn "
"$ olcDbACLPasswd "
"$ olcDbACLBind "
"$ olcDbIDAssertAuthcDn "
"$ olcDbIDAssertPasswd "
"$ olcDbIDAssertBind "
"$ olcDbIDAssertMode "
"$ olcDbIDAssertAuthzFrom "
"$ olcDbRebindAsUser "
"$ olcDbChaseReferrals "
"$ olcDbTFSupport "
"$ olcDbProxyWhoAmI "
"$ olcDbTimeout "
") )",
Cft_Database, ldapcfg},
{ NULL, 0, NULL }
};
static slap_verbmasks idassert_mode[] = {
{ BER_BVC("self"), LDAP_BACK_IDASSERT_SELF },
{ BER_BVC("anonymous"), LDAP_BACK_IDASSERT_ANONYMOUS },
{ BER_BVC("none"), LDAP_BACK_IDASSERT_NOASSERT },
{ BER_BVC("legacy"), LDAP_BACK_IDASSERT_LEGACY },
{ BER_BVNULL, 0 }
};
static slap_verbmasks tls_mode[] = {
{ BER_BVC( "propagate" ), LDAP_BACK_F_TLS_PROPAGATE_MASK },
{ BER_BVC( "try-propagate" ), LDAP_BACK_F_PROPAGATE_TLS },
{ BER_BVC( "start" ), LDAP_BACK_F_TLS_USE_MASK },
{ BER_BVC( "try-start" ), LDAP_BACK_F_USE_TLS },
{ BER_BVC( "none" ), LDAP_BACK_F_NONE },
{ BER_BVNULL, 0 }
};
static slap_verbmasks t_f_mode[] = {
{ BER_BVC( "yes" ), LDAP_BACK_F_SUPPORT_T_F },
{ BER_BVC( "discover" ), LDAP_BACK_F_SUPPORT_T_F_DISCOVER },
{ BER_BVC( "no" ), LDAP_BACK_F_NONE },
{ BER_BVNULL, 0 }
};
static slap_cf_aux_table timeout_table[] = {
{ BER_BVC("add="), 0 * sizeof( time_t ), 'u', 0, NULL },
{ BER_BVC("delete="), 1 * sizeof( time_t ), 'u', 0, NULL },
{ BER_BVC("modify="), 2 * sizeof( time_t ), 'u', 0, NULL },
{ BER_BVC("modrdn="), 3 * sizeof( time_t ), 'u', 0, NULL },
{ BER_BVNULL, 0, 0, 0, NULL }
};
static int
ldap_back_cf_gen( ConfigArgs *c )
{
ldapinfo_t *li = ( ldapinfo_t * )c->be->be_private;
int rc;
int i;
if ( c->op == SLAP_CONFIG_EMIT ) {
struct berval bv = BER_BVNULL;
rc = 0;
switch( c->type ) {
case LDAP_BACK_CFG_URI:
if ( li->li_uri != NULL ) {
c->value_string = ch_strdup( li->li_uri );
} else {
rc = 1;
}
break;
case LDAP_BACK_CFG_TLS:
enum_to_verb( tls_mode, ( li->li_flags & LDAP_BACK_F_TLS_MASK ), &bv );
if ( BER_BVISNULL( &bv ) ) {
/* there's something wrong... */
assert( 0 );
rc = 1;
} else {
value_add_one( &c->rvalue_vals, &bv );
}
break;
case LDAP_BACK_CFG_ACL_AUTHCDN:
case LDAP_BACK_CFG_ACL_PASSWD:
case LDAP_BACK_CFG_ACL_METHOD:
/* handled by LDAP_BACK_CFG_ACL_BIND */
rc = 1;
break;
case LDAP_BACK_CFG_ACL_BIND: {
int i;
bindconf_unparse( &li->li_acl, &bv );
for ( i = 0; isspace( bv.bv_val[ i ] ); i++ )
/* count spaces */ ;
if ( i ) {
bv.bv_len -= i;
AC_MEMCPY( bv.bv_val, &bv.bv_val[ i ],
bv.bv_len + 1 );
}
ber_bvarray_add( &c->rvalue_vals, &bv );
break;
}
case LDAP_BACK_CFG_IDASSERT_MODE:
case LDAP_BACK_CFG_IDASSERT_AUTHCDN:
case LDAP_BACK_CFG_IDASSERT_PASSWD:
case LDAP_BACK_CFG_IDASSERT_METHOD:
/* handled by LDAP_BACK_CFG_IDASSERT_BIND */
rc = 1;
break;
case LDAP_BACK_CFG_IDASSERT_AUTHZFROM: {
int i;
if ( li->li_idassert_authz == NULL ) {
rc = 1;
break;
}
for ( i = 0; !BER_BVISNULL( &li->li_idassert_authz[ i ] ); i++ )
{
value_add_one( &c->rvalue_vals, &li->li_idassert_authz[ i ] );
}
break;
}
case LDAP_BACK_CFG_IDASSERT_BIND: {
int i;
struct berval bc = BER_BVNULL;
char *ptr;
if ( li->li_idassert_authmethod != LDAP_AUTH_NONE ) {
ber_len_t len;
switch ( li->li_idassert_mode ) {
case LDAP_BACK_IDASSERT_OTHERID:
case LDAP_BACK_IDASSERT_OTHERDN:
break;
default: {
struct berval mode = BER_BVNULL;
enum_to_verb( idassert_mode, li->li_idassert_mode, &mode );
if ( BER_BVISNULL( &mode ) ) {
/* there's something wrong... */
assert( 0 );
rc = 1;
} else {
bv.bv_len = STRLENOF( "mode=" ) + mode.bv_len;
bv.bv_val = ch_malloc( bv.bv_len + 1 );
ptr = lutil_strcopy( bv.bv_val, "mode=" );
ptr = lutil_strcopy( ptr, mode.bv_val );
}
break;
}
}
if ( li->li_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) {
len = bv.bv_len + STRLENOF( "authz=native" );
if ( !BER_BVISEMPTY( &bv ) ) {
len += STRLENOF( " " );
}
bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
ptr = &bv.bv_val[ bv.bv_len ];
if ( !BER_BVISEMPTY( &bv ) ) {
ptr = lutil_strcopy( ptr, " " );
}
(void)lutil_strcopy( ptr, "authz=native" );
}
len = bv.bv_len + STRLENOF( "flags=non-prescriptive,override" );
/* flags */
if ( !BER_BVISEMPTY( &bv ) ) {
len += STRLENOF( " " );
}
bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
ptr = &bv.bv_val[ bv.bv_len ];
if ( !BER_BVISEMPTY( &bv ) ) {
ptr = lutil_strcopy( ptr, " " );
}
ptr = lutil_strcopy( ptr, "flags=" );
if ( li->li_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
ptr = lutil_strcopy( ptr, "prescriptive" );
} else {
ptr = lutil_strcopy( ptr, "non-prescriptive" );
}
if ( li->li_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) {
ptr = lutil_strcopy( ptr, ",override" );
}
bv.bv_len = ( ptr - bv.bv_val );
/* end-of-flags */
}
bindconf_unparse( &li->li_idassert, &bc );
if ( !BER_BVISNULL( &bv ) ) {
ber_len_t len = bv.bv_len + bc.bv_len;
bv.bv_val = ch_realloc( bv.bv_val, len + 1 );
assert( bc.bv_val[ 0 ] == ' ' );
ptr = lutil_strcopy( &bv.bv_val[ bv.bv_len ], bc.bv_val );
free( bc.bv_val );
bv.bv_len = ptr - bv.bv_val;
} else {
for ( i = 0; isspace( bc.bv_val[ i ] ); i++ )
/* count spaces */ ;
if ( i ) {
bc.bv_len -= i;
AC_MEMCPY( bc.bv_val, &bc.bv_val[ i ], bc.bv_len + 1 );
}
bv = bc;
}
ber_bvarray_add( &c->rvalue_vals, &bv );
break;
}
case LDAP_BACK_CFG_REBIND:
c->value_int = LDAP_BACK_SAVECRED( li );
break;
case LDAP_BACK_CFG_CHASE:
c->value_int = LDAP_BACK_CHASE_REFERRALS( li );
break;
case LDAP_BACK_CFG_T_F:
enum_to_verb( t_f_mode, (li->li_flags & LDAP_BACK_F_SUPPORT_T_F_MASK), &bv );
if ( BER_BVISNULL( &bv ) ) {
/* there's something wrong... */
assert( 0 );
rc = 1;
} else {
value_add_one( &c->rvalue_vals, &bv );
}
break;
case LDAP_BACK_CFG_WHOAMI:
c->value_int = LDAP_BACK_PROXY_WHOAMI( li );
break;
case LDAP_BACK_CFG_TIMEOUT:
BER_BVZERO( &bv );
slap_cf_aux_table_unparse( li->li_timeout, &bv, timeout_table );
if ( !BER_BVISNULL( &bv ) ) {
for ( i = 0; isspace( bv.bv_val[ i ] ); i++ )
/* count spaces */ ;
if ( i ) {
bv.bv_len -= i;
AC_MEMCPY( bv.bv_val, &bv.bv_val[ i ],
bv.bv_len + 1 );
}
ber_bvarray_add( &c->rvalue_vals, &bv );
}
break;
default:
/* FIXME: we need to handle all... */
assert( 0 );
break;
}
return rc;
} else if ( c->op == LDAP_MOD_DELETE ) {
rc = 0;
switch( c->type ) {
case LDAP_BACK_CFG_URI:
if ( li->li_uri != NULL ) {
ch_free( li->li_uri );
li->li_uri = NULL;
assert( li->li_bvuri != NULL );
ber_bvarray_free( li->li_bvuri );
li->li_bvuri = NULL;
}
/* better cleanup the cached connections... */
/* NOTE: don't worry about locking: if we got here,
* other threads are suspended. */
if ( li->li_conninfo.lai_tree != NULL ) {
avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
li->li_conninfo.lai_tree = NULL;
}
break;
case LDAP_BACK_CFG_TLS:
rc = 1;
break;
case LDAP_BACK_CFG_ACL_AUTHCDN:
case LDAP_BACK_CFG_ACL_PASSWD:
case LDAP_BACK_CFG_ACL_METHOD:
/* handled by LDAP_BACK_CFG_ACL_BIND */
rc = 1;
break;
case LDAP_BACK_CFG_ACL_BIND:
bindconf_free( &li->li_acl );
break;
case LDAP_BACK_CFG_IDASSERT_MODE:
case LDAP_BACK_CFG_IDASSERT_AUTHCDN:
case LDAP_BACK_CFG_IDASSERT_PASSWD:
case LDAP_BACK_CFG_IDASSERT_METHOD:
/* handled by LDAP_BACK_CFG_IDASSERT_BIND */
rc = 1;
break;
case LDAP_BACK_CFG_IDASSERT_AUTHZFROM:
if ( li->li_idassert_authz != NULL ) {
ber_bvarray_free( li->li_idassert_authz );
li->li_idassert_authz = NULL;
}
break;
case LDAP_BACK_CFG_IDASSERT_BIND:
bindconf_free( &li->li_idassert );
break;
case LDAP_BACK_CFG_REBIND:
case LDAP_BACK_CFG_CHASE:
case LDAP_BACK_CFG_T_F:
case LDAP_BACK_CFG_WHOAMI:
rc = 1;
break;
case LDAP_BACK_CFG_TIMEOUT:
for ( i = 0; i < LDAP_BACK_OP_LAST; i++ ) {
li->li_timeout[ i ] = 0;
}
break;
default:
/* FIXME: we need to handle all... */
assert( 0 );
break;
}
return rc;
}
switch( c->type ) {
case LDAP_BACK_CFG_URI: {
LDAPURLDesc *tmpludp, *lud;
char **urllist = NULL;
int urlrc = LDAP_URL_SUCCESS, i;
if ( c->argc != 2 ) {
fprintf( stderr, "%s: line %d: "
"missing uri "
"in \"uri <uri>\" line\n",
c->fname, c->lineno );
return 1;
}
if ( li->li_uri != NULL ) {
ch_free( li->li_uri );
li->li_uri = NULL;
assert( li->li_bvuri != NULL );
ber_bvarray_free( li->li_bvuri );
li->li_bvuri = NULL;
}
/* PARANOID: DN and more are not required nor allowed */
urlrc = ldap_url_parselist_ext( &lud, c->value_string, ", \t" );
if ( urlrc != LDAP_URL_SUCCESS ) {
char *why;
switch ( urlrc ) {
case LDAP_URL_ERR_MEM:
why = "no memory";
break;
case LDAP_URL_ERR_PARAM:
why = "parameter is bad";
break;
case LDAP_URL_ERR_BADSCHEME:
why = "URL doesn't begin with \"[c]ldap[si]://\"";
break;
case LDAP_URL_ERR_BADENCLOSURE:
why = "URL is missing trailing \">\"";
break;
case LDAP_URL_ERR_BADURL:
why = "URL is bad";
break;
case LDAP_URL_ERR_BADHOST:
why = "host/port is bad";
break;
case LDAP_URL_ERR_BADATTRS:
why = "bad (or missing) attributes";
break;
case LDAP_URL_ERR_BADSCOPE:
why = "scope string is invalid (or missing)";
break;
case LDAP_URL_ERR_BADFILTER:
why = "bad or missing filter";
break;
case LDAP_URL_ERR_BADEXTS:
why = "bad or missing extensions";
break;
default:
why = "unknown reason";
break;
}
fprintf( stderr, "%s: line %d: "
"unable to parse uri \"%s\" "
"in \"uri <uri>\" line: %s\n",
c->fname, c->lineno, c->value_string, why );
urlrc = 1;
goto done_url;
}
for ( i = 0, tmpludp = lud;
tmpludp;
i++, tmpludp = tmpludp->lud_next )
{
if ( ( tmpludp->lud_dn != NULL
&& tmpludp->lud_dn[0] != '\0' )
|| tmpludp->lud_attrs != NULL
/* || tmpludp->lud_scope != LDAP_SCOPE_DEFAULT */
|| tmpludp->lud_filter != NULL
|| tmpludp->lud_exts != NULL )
{
fprintf( stderr, "%s: line %d: "
"warning, only protocol, "
"host and port allowed "
"in \"uri <uri>\" statement "
"for uri #%d of \"%s\"\n",
c->fname, c->lineno, i, c->value_string );
}
}
for ( i = 0, tmpludp = lud;
tmpludp;
i++, tmpludp = tmpludp->lud_next )
/* just count */
;
urllist = ch_calloc( sizeof( char * ), i + 1 );
for ( i = 0, tmpludp = lud;
tmpludp;
i++, tmpludp = tmpludp->lud_next )
{
LDAPURLDesc tmplud;
tmplud = *tmpludp;
tmplud.lud_dn = "";
tmplud.lud_attrs = NULL;
tmplud.lud_filter = NULL;
if ( !ldap_is_ldapi_url( tmplud.lud_scheme ) ) {
tmplud.lud_exts = NULL;
tmplud.lud_crit_exts = 0;
}
urllist[ i ] = ldap_url_desc2str( &tmplud );
if ( urllist[ i ] == NULL ) {
fprintf( stderr, "%s: line %d: "
"unable to rebuild uri "
"in \"uri <uri>\" statement "
"for \"%s\"\n",
c->fname, c->lineno, c->argv[ 1 ] );
urlrc = 1;
goto done_url;
}
}
li->li_uri = ldap_charray2str( urllist, " " );
for ( i = 0; urllist[ i ] != NULL; i++ ) {
struct berval bv;
ber_str2bv( urllist[ i ], 0, 0, &bv );
ber_bvarray_add( &li->li_bvuri, &bv );
urllist[ i ] = NULL;
}
ldap_memfree( urllist );
urllist = NULL;
done_url:;
if ( urllist ) {
ldap_charray_free( urllist );
}
if ( lud ) {
ldap_free_urllist( lud );
}
if ( urlrc != LDAP_URL_SUCCESS ) {
return 1;
}
break;
}
case LDAP_BACK_CFG_TLS:
i = verb_to_mask( c->argv[1], tls_mode );
if ( BER_BVISNULL( &tls_mode[i].word ) ) {
return 1;
}
li->li_flags &= ~LDAP_BACK_F_TLS_MASK;
li->li_flags |= tls_mode[i].mask;
break;
case LDAP_BACK_CFG_ACL_AUTHCDN:
switch ( li->li_acl_authmethod ) {
case LDAP_AUTH_NONE:
li->li_acl_authmethod = LDAP_AUTH_SIMPLE;
break;
case LDAP_AUTH_SIMPLE:
break;
default:
fprintf( stderr, "%s: line %d: "
"\"acl-authcDN <DN>\" incompatible "
"with auth method %d.",
c->fname, c->lineno, li->li_acl_authmethod );
return 1;
}
if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
free( li->li_acl_authcDN.bv_val );
}
ber_memfree_x( c->value_dn.bv_val, NULL );
li->li_acl_authcDN = c->value_ndn;
BER_BVZERO( &c->value_dn );
BER_BVZERO( &c->value_ndn );
break;
case LDAP_BACK_CFG_ACL_PASSWD:
switch ( li->li_acl_authmethod ) {
case LDAP_AUTH_NONE:
li->li_acl_authmethod = LDAP_AUTH_SIMPLE;
break;
case LDAP_AUTH_SIMPLE:
break;
default:
fprintf( stderr, "%s: line %d: "
"\"acl-passwd <cred>\" incompatible "
"with auth method %d.",
c->fname, c->lineno, li->li_acl_authmethod );
return 1;
}
if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
free( li->li_acl_passwd.bv_val );
}
ber_str2bv( c->argv[ 1 ], 0, 1, &li->li_acl_passwd );
break;
case LDAP_BACK_CFG_ACL_METHOD:
case LDAP_BACK_CFG_ACL_BIND:
for ( i = 1; i < c->argc; i++ ) {
if ( bindconf_parse( c->argv[ i ], &li->li_acl ) ) {
return 1;
}
}
break;
case LDAP_BACK_CFG_IDASSERT_MODE:
i = verb_to_mask( c->argv[1], idassert_mode );
if ( BER_BVISNULL( &idassert_mode[i].word ) ) {
if ( strncasecmp( c->argv[1], "u:", STRLENOF( "u:" ) ) == 0 ) {
li->li_idassert_mode = LDAP_BACK_IDASSERT_OTHERID;
ber_str2bv( c->argv[1], 0, 1, &li->li_idassert_authzID );
li->li_idassert_authzID.bv_val[ 0 ] = 'u';
} else {
struct berval id, ndn;
ber_str2bv( c->argv[1], 0, 0, &id );
if ( strncasecmp( c->argv[1], "dn:", STRLENOF( "dn:" ) ) == 0 ) {
id.bv_val += STRLENOF( "dn:" );
id.bv_len -= STRLENOF( "dn:" );
}
rc = dnNormalize( 0, NULL, NULL, &id, &ndn, NULL );
if ( rc != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_ANY,
"%s: line %d: idassert ID \"%s\" is not a valid DN\n",
c->fname, c->lineno, c->argv[1] );
return 1;
}
li->li_idassert_authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
li->li_idassert_authzID.bv_val = ch_malloc( li->li_idassert_authzID.bv_len + 1 );
AC_MEMCPY( li->li_idassert_authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
AC_MEMCPY( &li->li_idassert_authzID.bv_val[ STRLENOF( "dn:" ) ], ndn.bv_val, ndn.bv_len + 1 );
ch_free( ndn.bv_val );
li->li_idassert_mode = LDAP_BACK_IDASSERT_OTHERDN;
}
} else {
li->li_idassert_mode = idassert_mode[i].mask;
}
if ( c->argc > 2 ) {
int i;
for ( i = 2; i < c->argc; i++ ) {
if ( strcasecmp( c->argv[ i ], "override" ) == 0 ) {
li->li_idassert_flags |= LDAP_BACK_AUTH_OVERRIDE;
} else if ( strcasecmp( c->argv[ i ], "prescriptive" ) == 0 ) {
li->li_idassert_flags |= LDAP_BACK_AUTH_PRESCRIPTIVE;
} else if ( strcasecmp( c->argv[ i ], "non-prescriptive" ) == 0 ) {
li->li_idassert_flags &= ( ~LDAP_BACK_AUTH_PRESCRIPTIVE );
} else {
Debug( LDAP_DEBUG_ANY,
"%s: line %d: unknown flag #%d "
"in \"idassert-mode <args> "
"[<flags>]\" line.\n",
c->fname, c->lineno, i - 2 );
return 1;
}
}
}
break;
case LDAP_BACK_CFG_IDASSERT_AUTHCDN:
switch ( li->li_idassert_authmethod ) {
case LDAP_AUTH_NONE:
li->li_idassert_authmethod = LDAP_AUTH_SIMPLE;
break;
case LDAP_AUTH_SIMPLE:
break;
default:
fprintf( stderr, "%s: line %d: "
"\"idassert-authcDN <DN>\" incompatible "
"with auth method %d.",
c->fname, c->lineno, li->li_idassert_authmethod );
return 1;
}
if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
free( li->li_idassert_authcDN.bv_val );
}
ber_memfree_x( c->value_dn.bv_val, NULL );
li->li_idassert_authcDN = c->value_ndn;
BER_BVZERO( &c->value_dn );
BER_BVZERO( &c->value_ndn );
break;
case LDAP_BACK_CFG_IDASSERT_PASSWD:
switch ( li->li_idassert_authmethod ) {
case LDAP_AUTH_NONE:
li->li_idassert_authmethod = LDAP_AUTH_SIMPLE;
break;
case LDAP_AUTH_SIMPLE:
break;
default:
fprintf( stderr, "%s: line %d: "
"\"idassert-passwd <cred>\" incompatible "
"with auth method %d.",
c->fname, c->lineno, li->li_idassert_authmethod );
return 1;
}
if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
free( li->li_idassert_passwd.bv_val );
}
ber_str2bv( c->argv[ 1 ], 0, 1, &li->li_idassert_passwd );
break;
case LDAP_BACK_CFG_IDASSERT_AUTHZFROM: {
struct berval bv;
#ifdef SLAP_AUTHZ_SYNTAX
struct berval in;
int rc;
ber_str2bv( c->argv[ 1 ], 0, 0, &in );
rc = authzNormalize( 0, NULL, NULL, &in, &bv, NULL );
if ( rc != LDAP_SUCCESS ) {
fprintf( stderr, "%s: %d: "
"\"idassert-authzFrom <authz>\": "
"invalid syntax.\n",
c->fname, c->lineno );
return 1;
}
#else /* !SLAP_AUTHZ_SYNTAX */
ber_str2bv( c->argv[ 1 ], 0, 1, &bv );
#endif /* !SLAP_AUTHZ_SYNTAX */
ber_bvarray_add( &li->li_idassert_authz, &bv );
} break;
case LDAP_BACK_CFG_IDASSERT_METHOD:
/* no longer supported */
fprintf( stderr, "%s: %d: "
"\"idassert-method <args>\": "
"no longer supported; use \"idassert-bind\".\n",
c->fname, c->lineno );
return 1;
case LDAP_BACK_CFG_IDASSERT_BIND:
for ( i = 1; i < c->argc; i++ ) {
if ( strncasecmp( c->argv[ i ], "mode=", STRLENOF( "mode=" ) ) == 0 ) {
char *argvi = c->argv[ i ] + STRLENOF( "mode=" );
int j;
j = verb_to_mask( argvi, idassert_mode );
if ( BER_BVISNULL( &idassert_mode[ j ].word ) ) {
fprintf( stderr, "%s: %d: "
"\"idassert-bind <args>\": "
"unknown mode \"%s\".\n",
c->fname, c->lineno, argvi );
return 1;
}
li->li_idassert_mode = idassert_mode[ j ].mask;
} else if ( strncasecmp( c->argv[ i ], "authz=", STRLENOF( "authz=" ) ) == 0 ) {
char *argvi = c->argv[ i ] + STRLENOF( "authz=" );
if ( strcasecmp( argvi, "native" ) == 0 ) {
if ( li->li_idassert_authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: %d: "
"\"idassert-bind <args>\": "
"authz=\"native\" incompatible "
"with auth method.\n",
c->fname, c->lineno );
return 1;
}
li->li_idassert_flags |= LDAP_BACK_AUTH_NATIVE_AUTHZ;
} else if ( strcasecmp( argvi, "proxyAuthz" ) == 0 ) {
li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
} else {
fprintf( stderr, "%s: %d: "
"\"idassert-bind <args>\": "
"unknown authz \"%s\".\n",
c->fname, c->lineno, argvi );
return 1;
}
} else if ( strncasecmp( c->argv[ i ], "flags=", STRLENOF( "flags=" ) ) == 0 ) {
char *argvi = c->argv[ i ] + STRLENOF( "flags=" );
char **flags = ldap_str2charray( argvi, "," );
int j;
if ( flags == NULL ) {
fprintf( stderr, "%s: %d: "
"\"idassert-bind <args>\": "
"unable to parse flags \"%s\".\n",
c->fname, c->lineno, argvi );
return 1;
}
for ( j = 0; flags[ j ] != NULL; j++ ) {
if ( strcasecmp( flags[ j ], "override" ) == 0 ) {
li->li_idassert_flags |= LDAP_BACK_AUTH_OVERRIDE;
} else if ( strcasecmp( flags[ j ], "prescriptive" ) == 0 ) {
li->li_idassert_flags |= LDAP_BACK_AUTH_PRESCRIPTIVE;
} else if ( strcasecmp( flags[ j ], "non-prescriptive" ) == 0 ) {
li->li_idassert_flags &= ( ~LDAP_BACK_AUTH_PRESCRIPTIVE );
} else {
fprintf( stderr, "%s: %d: "
"\"idassert-bind <args>\": "
"unknown flag \"%s\".\n",
c->fname, c->lineno, flags[ j ] );
return 1;
}
}
ldap_charray_free( flags );
} else if ( bindconf_parse( c->argv[ i ], &li->li_idassert ) ) {
return 1;
}
}
break;
case LDAP_BACK_CFG_REBIND:
if ( c->argc == 1 || c->value_int ) {
li->li_flags |= LDAP_BACK_F_SAVECRED;
} else {
li->li_flags &= ~LDAP_BACK_F_SAVECRED;
}
break;
case LDAP_BACK_CFG_CHASE:
if ( c->argc == 1 || c->value_int ) {
li->li_flags |= LDAP_BACK_F_CHASE_REFERRALS;
} else {
li->li_flags &= ~LDAP_BACK_F_CHASE_REFERRALS;
}
break;
case LDAP_BACK_CFG_T_F:
i = verb_to_mask( c->argv[1], t_f_mode );
if ( BER_BVISNULL( &t_f_mode[i].word ) ) {
return 1;
}
li->li_flags &= ~LDAP_BACK_F_SUPPORT_T_F_MASK;
li->li_flags |= t_f_mode[i].mask;
break;
case LDAP_BACK_CFG_WHOAMI:
if ( c->argc == 1 || c->value_int ) {
li->li_flags |= LDAP_BACK_F_PROXY_WHOAMI;
load_extop( (struct berval *)&slap_EXOP_WHOAMI,
0, ldap_back_exop_whoami );
} else {
li->li_flags &= ~LDAP_BACK_F_PROXY_WHOAMI;
}
break;
case LDAP_BACK_CFG_TIMEOUT:
if ( c->argc < 2 ) {
return 1;
}
for ( i = 1; i < c->argc; i++ ) {
if ( isdigit( c->argv[ i ][ 0 ] ) ) {
char *next;
int j;
unsigned u;
u = strtoul( c->argv[ i ], &next, 0 );
if ( next == c->argv[ i ] || next[ 0 ] != '\0' ) {
return 1;
}
for ( j = 0; j < LDAP_BACK_OP_LAST; j++ ) {
li->li_timeout[ j ] = u;
}
continue;
}
if ( slap_cf_aux_table_parse( c->argv[ i ], li->li_timeout, timeout_table, "slapd-ldap timeout" ) ) {
return 1;
}
}
break;
case LDAP_BACK_CFG_REWRITE:
fprintf( stderr, "%s: line %d: "
"rewrite/remap capabilities have been moved "
"to the \"rwm\" overlay; see slapo-rwm(5) "
"for details (hint: add \"overlay rwm\" "
"and prefix all directives with \"rwm-\").\n",
c->fname, c->lineno );
return 1;
default:
/* FIXME: try to catch inconsistencies */
assert( 0 );
break;
}
return 0;
}
int
ldap_back_init_cf( BackendInfo *bi )
{
int rc;
AttributeDescription *ad = NULL;
const char *text;
/* Make sure we don't exceed the bits reserved for userland */
config_check_userland( LDAP_BACK_CFG_LAST );
bi->bi_cf_ocs = ldapocs;
rc = config_register_schema( ldapcfg, ldapocs );
if ( rc ) {
return rc;
}
/* setup olcDbAclPasswd and olcDbIDAssertPasswd
* to be base64-encoded when written in LDIF form;
* basically, we don't care if it fails */
rc = slap_str2ad( "olcDbACLPasswd", &ad, &text );
if ( rc ) {
Debug( LDAP_DEBUG_ANY, "config_back_initialize: "
"warning, unable to get \"olcDbACLPasswd\" "
"attribute description: %d: %s\n",
rc, text, 0 );
} else {
(void)ldif_must_b64_encode_register( ad->ad_cname.bv_val,
ad->ad_type->sat_oid );
}
ad = NULL;
rc = slap_str2ad( "olcDbIDAssertPasswd", &ad, &text );
if ( rc ) {
Debug( LDAP_DEBUG_ANY, "config_back_initialize: "
"warning, unable to get \"olcDbIDAssertPasswd\" "
"attribute description: %d: %s\n",
rc, text, 0 );
} else {
(void)ldif_must_b64_encode_register( ad->ad_cname.bv_val,
ad->ad_type->sat_oid );
}
return 0;
}
static int
ldap_back_exop_whoami(
Operation *op,
SlapReply *rs )
{
struct berval *bv = NULL;
if ( op->oq_extended.rs_reqdata != NULL ) {
/* no request data should be provided */
rs->sr_text = "no request data expected";
return rs->sr_err = LDAP_PROTOCOL_ERROR;
}
Statslog( LDAP_DEBUG_STATS, "%s WHOAMI\n",
op->o_log_prefix, 0, 0, 0, 0 );
rs->sr_err = backend_check_restrictions( op, rs,
(struct berval *)&slap_EXOP_WHOAMI );
if( rs->sr_err != LDAP_SUCCESS ) return rs->sr_err;
/* if auth'd by back-ldap and request is proxied, forward it */
if ( op->o_conn->c_authz_backend && !strcmp(op->o_conn->c_authz_backend->be_type, "ldap" ) && !dn_match(&op->o_ndn, &op->o_conn->c_ndn)) {
ldapconn_t *lc;
LDAPControl c, *ctrls[2] = {NULL, NULL};
LDAPMessage *res;
Operation op2 = *op;
ber_int_t msgid;
int doretry = 1;
ctrls[0] = &c;
op2.o_ndn = op->o_conn->c_ndn;
lc = ldap_back_getconn(&op2, rs, LDAP_BACK_SENDERR);
if (!lc || !ldap_back_dobind( lc, op, rs, LDAP_BACK_SENDERR )) {
return -1;
}
c.ldctl_oid = LDAP_CONTROL_PROXY_AUTHZ;
c.ldctl_iscritical = 1;
c.ldctl_value.bv_val = ch_malloc(op->o_ndn.bv_len+4);
c.ldctl_value.bv_len = op->o_ndn.bv_len + 3;
strcpy(c.ldctl_value.bv_val, "dn:");
strcpy(c.ldctl_value.bv_val+3, op->o_ndn.bv_val);
retry:
rs->sr_err = ldap_whoami(lc->lc_ld, ctrls, NULL, &msgid);
if (rs->sr_err == LDAP_SUCCESS) {
if (ldap_result(lc->lc_ld, msgid, 1, NULL, &res) == -1) {
ldap_get_option(lc->lc_ld, LDAP_OPT_ERROR_NUMBER,
&rs->sr_err);
if ( rs->sr_err == LDAP_SERVER_DOWN && doretry ) {
doretry = 0;
if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) )
goto retry;
}
ldap_back_freeconn( op, lc, 1 );
lc = NULL;
} else {
rs->sr_err = ldap_parse_whoami(lc->lc_ld, res, &bv);
ldap_msgfree(res);
}
}
ch_free(c.ldctl_value.bv_val);
if (rs->sr_err != LDAP_SUCCESS) {
rs->sr_err = slap_map_api2result( rs );
}
if ( lc != NULL ) {
ldap_back_release_conn( &op2, rs, lc );
}
} else {
/* else just do the same as before */
bv = (struct berval *) ch_malloc( sizeof(struct berval) );
if ( !BER_BVISEMPTY( &op->o_dn ) ) {
bv->bv_len = op->o_dn.bv_len + STRLENOF("dn:");
bv->bv_val = ch_malloc( bv->bv_len + 1 );
AC_MEMCPY( bv->bv_val, "dn:", STRLENOF("dn:") );
AC_MEMCPY( &bv->bv_val[STRLENOF("dn:")], op->o_dn.bv_val,
op->o_dn.bv_len );
bv->bv_val[bv->bv_len] = '\0';
} else {
bv->bv_len = 0;
bv->bv_val = NULL;
}
}
rs->sr_rspdata = bv;
return rs->sr_err;
}
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