/* bind.c - ldbm backend bind and unbind routines */
/* $OpenLDAP$ */
/*
- * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "slap.h"
+#include <lber_pvt.h>
#include <lutil.h>
+int passwd_extop(
+ Connection *conn, Operation *op,
+ const char *reqoid,
+ struct berval *reqdata,
+ char **rspoid,
+ struct berval **rspdata,
+ LDAPControl ***rspctrls,
+ const char **text,
+ BerVarray *refs )
+{
+ Backend *be;
+ int rc;
+
+ assert( reqoid != NULL );
+ assert( strcmp( LDAP_EXOP_MODIFY_PASSWD, reqoid ) == 0 );
+
+ if( op->o_dn.bv_len == 0 ) {
+ *text = "only authenticated users may change passwords";
+ return LDAP_STRONG_AUTH_REQUIRED;
+ }
+
+ ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+ be = conn->c_authz_backend;
+ ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+
+ if( be && !be->be_extended ) {
+ *text = "operation not supported for current user";
+ return LDAP_UNWILLING_TO_PERFORM;
+ }
+
+ {
+ struct berval passwd = BER_BVC( LDAP_EXOP_MODIFY_PASSWD );
+ rc = backend_check_restrictions( be, conn, op, &passwd, text );
+ }
+
+ if( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ if( be == NULL ) {
+#ifdef HAVE_CYRUS_SASL
+ rc = slap_sasl_setpass( conn, op,
+ reqoid, reqdata,
+ rspoid, rspdata, rspctrls,
+ text );
+#else
+ *text = "no authz backend";
+ rc = LDAP_OTHER;
+#endif
+
+ } else if( be->be_update_ndn.bv_len ) {
+ /* we SHOULD return a referral in this case */
+ *refs = referral_rewrite( be->be_update_refs,
+ NULL, NULL, LDAP_SCOPE_DEFAULT );
+ rc = LDAP_REFERRAL;
+
+ } else {
+ rc = be->be_extended(
+ be, conn, op,
+ reqoid, reqdata,
+ rspoid, rspdata, rspctrls,
+ text, refs );
+ }
+
+ return rc;
+}
+
+int slap_passwd_parse( struct berval *reqdata,
+ struct berval *id,
+ struct berval *oldpass,
+ struct berval *newpass,
+ const char **text )
+{
+ int rc = LDAP_SUCCESS;
+ ber_tag_t tag;
+ ber_len_t len;
+ char berbuf[256];
+ BerElement *ber = (BerElement *)berbuf;
+
+ if( reqdata == NULL ) {
+ return LDAP_SUCCESS;
+ }
+
+ if( reqdata->bv_len == 0 ) {
+ *text = "empty request data field";
+ return LDAP_PROTOCOL_ERROR;
+ }
+
+ /* ber_init2 uses reqdata directly, doesn't allocate new buffers */
+ ber_init2( ber, reqdata, 0 );
+
+ tag = ber_scanf( ber, "{" /*}*/ );
+
+ if( tag != LBER_ERROR ) {
+ tag = ber_peek_tag( ber, &len );
+ }
+
+ if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_ID ) {
+ if( id == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "slap_passwd_parse: ID not allowed.\n"));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID not allowed.\n",
+ 0, 0, 0 );
+#endif
+
+ *text = "user must change own password";
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ goto done;
+ }
+
+ tag = ber_scanf( ber, "m", id );
+
+ if( tag == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "slap_passwd_parse: ID parse failed.\n"));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID parse failed.\n",
+ 0, 0, 0 );
+#endif
+
+ goto decoding_error;
+ }
+
+ tag = ber_peek_tag( ber, &len);
+ }
+
+ if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_OLD ) {
+ if( oldpass == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "slap_passwd_parse: OLD not allowed.\n" ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: OLD not allowed.\n",
+ 0, 0, 0 );
+#endif
+
+ *text = "use bind to verify old password";
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ goto done;
+ }
+
+ tag = ber_scanf( ber, "m", oldpass );
+
+ if( tag == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "slap_passwd_parse: ID parse failed.\n" ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: ID parse failed.\n",
+ 0, 0, 0 );
+#endif
+
+ goto decoding_error;
+ }
+
+ tag = ber_peek_tag( ber, &len );
+ }
+
+ if( tag == LDAP_TAG_EXOP_MODIFY_PASSWD_NEW ) {
+ if( newpass == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "slap_passwd_parse: NEW not allowed.\n" ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: NEW not allowed.\n",
+ 0, 0, 0 );
+#endif
+
+ *text = "user specified passwords disallowed";
+ rc = LDAP_UNWILLING_TO_PERFORM;
+ goto done;
+ }
+
+ tag = ber_scanf( ber, "m", newpass );
+
+ if( tag == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "slap_passwd_parse: OLD parse failed.\n"));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_parse: OLD parse failed.\n",
+ 0, 0, 0 );
+#endif
+
+ goto decoding_error;
+ }
+
+ tag = ber_peek_tag( ber, &len );
+ }
+
+ if( len != 0 ) {
+decoding_error:
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "slap_passwd_parse: decoding error, len=%ld\n", (long)len ));
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "slap_passwd_parse: decoding error, len=%ld\n",
+ (long) len, 0, 0 );
+#endif
+
+ *text = "data decoding error";
+ rc = LDAP_PROTOCOL_ERROR;
+ }
+
+done:
+ return rc;
+}
+
+struct berval * slap_passwd_return(
+ struct berval *cred )
+{
+ int rc;
+ struct berval *bv = NULL;
+ char berbuf[256];
+ /* opaque structure, size unknown but smaller than berbuf */
+ BerElement *ber = (BerElement *)berbuf;
+
+ assert( cred != NULL );
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
+ "slap_passwd_return: %ld\n",(long)cred->bv_len ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_return: %ld\n",
+ (long) cred->bv_len, 0, 0 );
+#endif
+
+ ber_init_w_nullc( ber, LBER_USE_DER );
+
+ rc = ber_printf( ber, "{tON}",
+ LDAP_TAG_EXOP_MODIFY_PASSWD_GEN, cred );
+
+ if( rc >= 0 ) {
+ (void) ber_flatten( ber, &bv );
+ }
+
+ ber_free_buf( ber );
+
+ return bv;
+}
int
slap_passwd_check(
+ Connection *conn,
Attribute *a,
- struct berval *cred
-)
+ struct berval *cred )
{
- int i;
- for ( i = 0; a->a_vals[i] != NULL; i++ ) {
- if ( a->a_syntax == SYNTAX_BIN ) {
- int result;
+ int result = 1;
+ struct berval *bv;
+
+#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
+ ldap_pvt_thread_mutex_lock( &passwd_mutex );
+#ifdef SLAPD_SPASSWD
+ lutil_passwd_sasl_conn = conn->c_sasl_context;
+#endif
+#endif
+
+ for ( bv = a->a_vals; bv->bv_val != NULL; bv++ ) {
+ if( !lutil_passwd( bv, cred, NULL ) ) {
+ result = 0;
+ break;
+ }
+ }
-#ifdef SLAPD_CRYPT
- ldap_pvt_thread_mutex_lock( &crypt_mutex );
+#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
+#ifdef SLAPD_SPASSWD
+ lutil_passwd_sasl_conn = NULL;
+#endif
+ ldap_pvt_thread_mutex_unlock( &passwd_mutex );
#endif
- result = lutil_passwd(
- (char*) cred->bv_val,
- (char*) a->a_vals[i]->bv_val,
- NULL );
+ return result;
+}
-#ifdef SLAPD_CRYPT
- ldap_pvt_thread_mutex_unlock( &crypt_mutex );
+void
+slap_passwd_generate( struct berval *pass )
+{
+ struct berval *tmp;
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
+ "slap_passwd_generate: begin\n" ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_passwd_generate\n", 0, 0, 0 );
#endif
+ /*
+ * generate passwords of only 8 characters as some getpass(3)
+ * implementations truncate at 8 characters.
+ */
+ tmp = lutil_passwd_generate( 8 );
+ if (tmp) {
+ *pass = *tmp;
+ free(tmp);
+ } else {
+ pass->bv_val = NULL;
+ pass->bv_len = 0;
+ }
+}
- return result;
+void
+slap_passwd_hash(
+ struct berval * cred,
+ struct berval * new )
+{
+ struct berval *tmp;
+#ifdef LUTIL_SHA1_BYTES
+ char* hash = default_passwd_hash ? default_passwd_hash : "{SSHA}";
+#else
+ char* hash = default_passwd_hash ? default_passwd_hash : "{SMD5}";
+#endif
+
+
+#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
+ ldap_pvt_thread_mutex_lock( &passwd_mutex );
+#endif
+
+ tmp = lutil_passwd_hash( cred , hash );
+
+#if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
+ ldap_pvt_thread_mutex_unlock( &passwd_mutex );
+#endif
- } else {
- if ( value_cmp( a->a_vals[i], cred, a->a_syntax, 1 ) == 0 ) {
- return( 0 );
- }
- }
+ if( tmp == NULL ) {
+ new->bv_len = 0;
+ new->bv_val = NULL;
}
- return( 1 );
+ *new = *tmp;
+ free( tmp );
+ return;
}
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