/*
* meta_back_proxy_authz_cred()
*
* prepares credentials & method for meta_back_proxy_authz_bind();
* or, if method is SASL, performs the SASL bind directly.
*/
int
meta_back_proxy_authz_cred(
metaconn_t *mc,
int candidate,
Operation *op,
SlapReply *rs,
ldap_back_send_t sendok,
struct berval *binddn,
struct berval *bindcred,
int *method )
{
metainfo_t *mi = (metainfo_t *)op->o_bd->be_private;
metatarget_t *mt = mi->mi_targets[ candidate ];
metasingleconn_t *msc = &mc->mc_conns[ candidate ];
struct berval ndn;
int dobind = 0;
/* don't proxyAuthz if protocol is not LDAPv3 */
switch ( mt->mt_version ) {
case LDAP_VERSION3:
break;
case 0:
if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
break;
}
/* fall thru */
default:
rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
if ( sendok & LDAP_BACK_SENDERR ) {
send_ldap_result( op, rs );
}
LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
goto done;
}
if ( op->o_tag == LDAP_REQ_BIND ) {
ndn = op->o_req_ndn;
} else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) {
ndn = op->o_conn->c_ndn;
} else {
ndn = op->o_ndn;
}
rs->sr_err = LDAP_SUCCESS;
/*
* FIXME: we need to let clients use proxyAuthz
* otherwise we cannot do symmetric pools of servers;
* we have to live with the fact that a user can
* authorize itself as any ID that is allowed
* by the authzTo directive of the "proxyauthzdn".
*/
/*
* NOTE: current Proxy Authorization specification
* and implementation do not allow proxy authorization
* control to be provided with Bind requests
*/
/*
* if no bind took place yet, but the connection is bound
* and the "proxyauthzdn" is set, then bind as
* "proxyauthzdn" and explicitly add the proxyAuthz
* control to every operation with the dn bound
* to the connection as control value.
*/
/* bind as proxyauthzdn only if no idassert mode
* is requested, or if the client's identity
* is authorized */
switch ( mt->mt_idassert_mode ) {
case LDAP_BACK_IDASSERT_LEGACY:
if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) {
if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) && !BER_BVISEMPTY( &mt->mt_idassert_authcDN ) )
{
*binddn = mt->mt_idassert_authcDN;
*bindcred = mt->mt_idassert_passwd;
dobind = 1;
}
}
break;
default:
/* NOTE: rootdn can always idassert */
if ( BER_BVISNULL( &ndn )
&& mt->mt_idassert_authz == NULL
&& !( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL ) )
{
if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
rs->sr_err = LDAP_INAPPROPRIATE_AUTH;
if ( sendok & LDAP_BACK_SENDERR ) {
send_ldap_result( op, rs );
}
LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
goto done;
}
rs->sr_err = LDAP_SUCCESS;
*binddn = slap_empty_bv;
*bindcred = slap_empty_bv;
break;
} else if ( mt->mt_idassert_authz && !be_isroot( op ) ) {
struct berval authcDN;
if ( BER_BVISNULL( &ndn ) ) {
authcDN = slap_empty_bv;
} else {
authcDN = ndn;
}
rs->sr_err = slap_sasl_matches( op, mt->mt_idassert_authz,
&authcDN, &authcDN );
if ( rs->sr_err != LDAP_SUCCESS ) {
if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) {
if ( sendok & LDAP_BACK_SENDERR ) {
send_ldap_result( op, rs );
}
LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
goto done;
}
rs->sr_err = LDAP_SUCCESS;
*binddn = slap_empty_bv;
*bindcred = slap_empty_bv;
break;
}
}
*binddn = mt->mt_idassert_authcDN;
*bindcred = mt->mt_idassert_passwd;
dobind = 1;
break;
}
if ( dobind && mt->mt_idassert_authmethod == LDAP_AUTH_SASL ) {
#ifdef HAVE_CYRUS_SASL
void *defaults = NULL;
struct berval authzID = BER_BVNULL;
int freeauthz = 0;
/* if SASL supports native authz, prepare for it */
if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) &&
( mt->mt_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) )
{
switch ( mt->mt_idassert_mode ) {
case LDAP_BACK_IDASSERT_OTHERID:
case LDAP_BACK_IDASSERT_OTHERDN:
authzID = mt->mt_idassert_authzID;
break;
case LDAP_BACK_IDASSERT_ANONYMOUS:
BER_BVSTR( &authzID, "dn:" );
break;
case LDAP_BACK_IDASSERT_SELF:
if ( BER_BVISNULL( &ndn ) ) {
/* connection is not authc'd, so don't idassert */
BER_BVSTR( &authzID, "dn:" );
break;
}
authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len;
authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx );
memcpy( authzID.bv_val, "dn:", STRLENOF( "dn:" ) );
memcpy( authzID.bv_val + STRLENOF( "dn:" ),
ndn.bv_val, ndn.bv_len + 1 );
freeauthz = 1;
break;
default:
break;
}
}
if ( mt->mt_idassert_secprops != NULL ) {
rs->sr_err = ldap_set_option( msc->msc_ld,
LDAP_OPT_X_SASL_SECPROPS,
(void *)mt->mt_idassert_secprops );
if ( rs->sr_err != LDAP_OPT_SUCCESS ) {
rs->sr_err = LDAP_OTHER;
if ( sendok & LDAP_BACK_SENDERR ) {
send_ldap_result( op, rs );
}
LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
goto done;
}
}
defaults = lutil_sasl_defaults( msc->msc_ld,
mt->mt_idassert_sasl_mech.bv_val,
mt->mt_idassert_sasl_realm.bv_val,
mt->mt_idassert_authcID.bv_val,
mt->mt_idassert_passwd.bv_val,
authzID.bv_val );
if ( defaults == NULL ) {
rs->sr_err = LDAP_OTHER;
LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
if ( sendok & LDAP_BACK_SENDERR ) {
send_ldap_result( op, rs );
}
goto done;
}
rs->sr_err = ldap_sasl_interactive_bind_s( msc->msc_ld, binddn->bv_val,
mt->mt_idassert_sasl_mech.bv_val, NULL, NULL,
LDAP_SASL_QUIET, lutil_sasl_interact,
defaults );
rs->sr_err = slap_map_api2result( rs );
if ( rs->sr_err != LDAP_SUCCESS ) {
LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
if ( sendok & LDAP_BACK_SENDERR ) {
send_ldap_result( op, rs );
}
} else {
LDAP_BACK_CONN_ISBOUND_SET( msc );
}
lutil_sasl_freedefs( defaults );
if ( freeauthz ) {
slap_sl_free( authzID.bv_val, op->o_tmpmemctx );
}
goto done;
#endif /* HAVE_CYRUS_SASL */
}
*method = mt->mt_idassert_authmethod;
switch ( mt->mt_idassert_authmethod ) {
case LDAP_AUTH_NONE:
BER_BVSTR( binddn, "" );
BER_BVSTR( bindcred, "" );
/* fallthru */
case LDAP_AUTH_SIMPLE:
break;
default:
/* unsupported! */
LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED;
if ( sendok & LDAP_BACK_SENDERR ) {
send_ldap_result( op, rs );
}
break;
}
done:;
if ( !BER_BVISEMPTY( binddn ) ) {
LDAP_BACK_CONN_ISIDASSERT_SET( msc );
}
return rs->sr_err;
}
int
main( int argc, char *argv[] )
{
int rc;
LDAP *ld = NULL;
char *matcheddn = NULL, *text = NULL, **refs = NULL;
int rcode;
char * diag = NULL;
struct berval *scookie = NULL;
struct berval *scred = NULL;
int id, code = 0;
LDAPMessage *res;
LDAPControl **ctrls = NULL;
LDAPControl **vcctrls = NULL;
int nvcctrls = 0;
tool_init( TOOL_VC );
prog = lutil_progname( "ldapvc", argc, argv );
/* LDAPv3 only */
protocol = LDAP_VERSION3;
tool_args( argc, argv );
if (argc - optind > 0) {
dn = argv[optind++];
}
if (argc - optind > 0) {
cred.bv_val = strdup(argv[optind++]);
cred.bv_len = strlen(cred.bv_val);
}
if (argc - optind > 0) {
usage();
}
if (dn
#ifdef LDAP_API_FEATURE_VERIFY_CREDENTIALS_INTERACTIVE
&& !vc_sasl_mech
#endif
&& !cred.bv_val)
{
cred.bv_val = strdup(getpassphrase(_("User's password: "******"ldap_verify_credentials_interactive", rc, NULL, NULL, text, NULL);
ldap_memfree(text);
tool_exit(ld, rc);
}
} while (rc == LDAP_SASL_BIND_IN_PROGRESS);
lutil_sasl_freedefs(defaults);
if( rc != LDAP_SUCCESS ) {
ldap_get_option(ld, LDAP_OPT_DIAGNOSTIC_MESSAGE, (void*) &text);
tool_perror( "ldap_verify_credentials", rc, NULL, NULL, text, NULL );
rc = EXIT_FAILURE;
goto skip;
}
} else
#endif
#endif
{
rc = ldap_verify_credentials( ld,
NULL,
dn, NULL, cred.bv_val ? &cred: NULL, vcctrls,
NULL, NULL, &id );
if( rc != LDAP_SUCCESS ) {
ldap_get_option(ld, LDAP_OPT_DIAGNOSTIC_MESSAGE, (void*) &text);
tool_perror( "ldap_verify_credentials", rc, NULL, NULL, text, NULL );
rc = EXIT_FAILURE;
goto skip;
}
for ( ; ; ) {
struct timeval tv;
if ( tool_check_abandon( ld, id ) ) {
tool_exit( ld, LDAP_CANCELLED );
}
tv.tv_sec = 0;
tv.tv_usec = 100000;
rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, &tv, &res );
if ( rc < 0 ) {
tool_perror( "ldap_result", rc, NULL, NULL, NULL, NULL );
tool_exit( ld, rc );
}
if ( rc != 0 ) {
break;
}
}
}
ldap_controls_free(vcctrls);
vcctrls = NULL;
rc = ldap_parse_result( ld, res,
&code, &matcheddn, &text, &refs, &ctrls, 0 );
if (rc == LDAP_SUCCESS) rc = code;
if (rc != LDAP_SUCCESS) {
tool_perror( "ldap_parse_result", rc, NULL, matcheddn, text, refs );
rc = EXIT_FAILURE;
goto skip;
}
rc = ldap_parse_verify_credentials( ld, res, &rcode, &diag, &scookie, &scred, &vcctrls );
ldap_msgfree(res);
if (rc != LDAP_SUCCESS) {
tool_perror( "ldap_parse_verify_credentials", rc, NULL, NULL, NULL, NULL );
rc = EXIT_FAILURE;
goto skip;
}
if (rcode != LDAP_SUCCESS) {
printf(_("Failed: %s (%d)\n"), ldap_err2string(rcode), rcode);
}
if (diag && *diag) {
printf(_("Diagnostic: %s\n"), diag);
}
if (vcctrls) {
tool_print_ctrls( ld, vcctrls );
}
skip:
if ( verbose || code != LDAP_SUCCESS ||
( matcheddn && *matcheddn ) || ( text && *text ) || refs || ctrls )
{
printf( _("Result: %s (%d)\n"), ldap_err2string( code ), code );
if( text && *text ) {
printf( _("Additional info: %s\n"), text );
}
if( matcheddn && *matcheddn ) {
printf( _("Matched DN: %s\n"), matcheddn );
}
if( refs ) {
int i;
for( i=0; refs[i]; i++ ) {
printf(_("Referral: %s\n"), refs[i] );
}
}
if (ctrls) {
tool_print_ctrls( ld, ctrls );
ldap_controls_free( ctrls );
}
}
ber_memfree( text );
ber_memfree( matcheddn );
ber_memvfree( (void **) refs );
ber_bvfree( scookie );
ber_bvfree( scred );
ber_memfree( diag );
free( cred.bv_val );
/* disconnect from server */
tool_exit( ld, code == LDAP_SUCCESS ? EXIT_SUCCESS : EXIT_FAILURE );
}