/* $NetBSD: ldappasswd.c,v 1.1.1.6.6.1 2019/08/10 06:17:06 martin Exp $ */ /* ldappasswd -- a tool for change LDAP passwords */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 1998-2019 The OpenLDAP Foundation. * Portions Copyright 1998-2003 Kurt D. Zeilenga. * Portions Copyright 1998-2001 Net Boolean Incorporated. * Portions Copyright 2001-2003 IBM Corporation. * 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 * . */ /* Portions Copyright (c) 1992-1996 Regents of the University of Michigan. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that this notice is preserved and that due credit is given * to the University of Michigan at Ann Arbor. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. This * software is provided ``as is'' without express or implied warranty. */ /* ACKNOWLEDGEMENTS: * The original ldappasswd(1) tool was developed by Dave Storey (F5 * Network), based on other OpenLDAP client tools (which are, of * course, based on U-MICH LDAP). This version was rewritten * by Kurt D. Zeilenga (based on other OpenLDAP client tools). */ #include __RCSID("$NetBSD: ldappasswd.c,v 1.1.1.6.6.1 2019/08/10 06:17:06 martin Exp $"); #include "portable.h" #include #include #include #include #include #include #include #include #include "lutil.h" #include "lutil_ldap.h" #include "ldap_defaults.h" #include "common.h" static struct berval newpw = { 0, NULL }; static struct berval oldpw = { 0, NULL }; static int want_newpw = 0; static int want_oldpw = 0; static char *oldpwfile = NULL; static char *newpwfile = NULL; void usage( void ) { fprintf( stderr, _("Change password of an LDAP user\n\n")); fprintf( stderr,_("usage: %s [options] [user]\n"), prog); fprintf( stderr, _(" user: the authentication identity, commonly a DN\n")); fprintf( stderr, _("Password change options:\n")); fprintf( stderr, _(" -a secret old password\n")); fprintf( stderr, _(" -A prompt for old password\n")); fprintf( stderr, _(" -t file read file for old password\n")); fprintf( stderr, _(" -s secret new password\n")); fprintf( stderr, _(" -S prompt for new password\n")); fprintf( stderr, _(" -T file read file for new password\n")); tool_common_usage(); exit( EXIT_FAILURE ); } const char options[] = "a:As:St:T:" "d:D:e:h:H:InNO:o:p:QR:U:vVw:WxX:y:Y:Z"; int handle_private_option( int i ) { switch ( i ) { #if 0 case 'E': /* passwd extensions */ { int crit; char *control, *cvalue; if( protocol == LDAP_VERSION2 ) { fprintf( stderr, _("%s: -E incompatible with LDAPv%d\n"), prog, protocol ); exit( EXIT_FAILURE ); } /* should be extended to support comma separated list of * [!]key[=value] parameters, e.g. -E !foo,bar=567 */ crit = 0; cvalue = NULL; if( optarg[0] == '!' ) { crit = 1; optarg++; } control = strdup( optarg ); if ( (cvalue = strchr( control, '=' )) != NULL ) { *cvalue++ = '\0'; } fprintf( stderr, _("Invalid passwd extension name: %s\n"), control ); usage(); } #endif case 'a': /* old password (secret) */ oldpw.bv_val = strdup( optarg ); { char* p; for( p = optarg; *p != '\0'; p++ ) { *p = '\0'; } } oldpw.bv_len = strlen( oldpw.bv_val ); break; case 'A': /* prompt for old password */ want_oldpw++; break; case 's': /* new password (secret) */ newpw.bv_val = strdup (optarg); { char* p; for( p = optarg; *p != '\0'; p++ ) { *p = '\0'; } } newpw.bv_len = strlen( newpw.bv_val ); break; case 'S': /* prompt for user password */ want_newpw++; break; case 't': oldpwfile = optarg; break; case 'T': newpwfile = optarg; break; default: return 0; } return 1; } int main( int argc, char *argv[] ) { int rc; char *user = NULL; LDAP *ld = NULL; struct berval bv = {0, NULL}; BerElement *ber = NULL; int id, code = LDAP_OTHER; LDAPMessage *res; char *matcheddn = NULL, *text = NULL, **refs = NULL; char *retoid = NULL; struct berval *retdata = NULL; LDAPControl **ctrls = NULL; tool_init( TOOL_PASSWD ); prog = lutil_progname( "ldappasswd", argc, argv ); /* LDAPv3 only */ protocol = LDAP_VERSION3; tool_args( argc, argv ); if( argc - optind > 1 ) { usage(); } else if ( argc - optind == 1 ) { user = strdup( argv[optind] ); } else { user = NULL; } if( oldpwfile ) { rc = lutil_get_filed_password( oldpwfile, &oldpw ); if( rc ) { rc = EXIT_FAILURE; goto done; } } if( want_oldpw && oldpw.bv_val == NULL ) { /* prompt for old password */ char *ckoldpw; oldpw.bv_val = strdup(getpassphrase(_("Old password: "))); ckoldpw = getpassphrase(_("Re-enter old password: ")); if( oldpw.bv_val == NULL || ckoldpw == NULL || strcmp( oldpw.bv_val, ckoldpw )) { fprintf( stderr, _("passwords do not match\n") ); rc = EXIT_FAILURE; goto done; } oldpw.bv_len = strlen( oldpw.bv_val ); } if( newpwfile ) { rc = lutil_get_filed_password( newpwfile, &newpw ); if( rc ) { rc = EXIT_FAILURE; goto done; } } if( want_newpw && newpw.bv_val == NULL ) { /* prompt for new password */ char *cknewpw; newpw.bv_val = strdup(getpassphrase(_("New password: "))); cknewpw = getpassphrase(_("Re-enter new password: ")); if( newpw.bv_val == NULL || cknewpw == NULL || strcmp( newpw.bv_val, cknewpw )) { fprintf( stderr, _("passwords do not match\n") ); rc = EXIT_FAILURE; goto done; } newpw.bv_len = strlen( newpw.bv_val ); } ld = tool_conn_setup( 0, 0 ); tool_bind( ld ); if( user != NULL || oldpw.bv_val != NULL || newpw.bv_val != NULL ) { /* build the password modify request data */ ber = ber_alloc_t( LBER_USE_DER ); if( ber == NULL ) { perror( "ber_alloc_t" ); rc = EXIT_FAILURE; goto done; } ber_printf( ber, "{" /*}*/ ); if( user != NULL ) { ber_printf( ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, user ); free(user); } if( oldpw.bv_val != NULL ) { ber_printf( ber, "tO", LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, &oldpw ); free(oldpw.bv_val); } if( newpw.bv_val != NULL ) { ber_printf( ber, "tO", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, &newpw ); free(newpw.bv_val); } ber_printf( ber, /*{*/ "N}" ); rc = ber_flatten2( ber, &bv, 0 ); if( rc < 0 ) { perror( "ber_flatten2" ); rc = EXIT_FAILURE; goto done; } } if ( dont ) { rc = LDAP_SUCCESS; goto done; } tool_server_controls( ld, NULL, 0); rc = ldap_extended_operation( ld, LDAP_EXOP_MODIFY_PASSWD, bv.bv_val ? &bv : NULL, NULL, NULL, &id ); ber_free( ber, 1 ); if( rc != LDAP_SUCCESS ) { tool_perror( "ldap_extended_operation", rc, NULL, NULL, NULL, NULL ); rc = EXIT_FAILURE; goto done; } 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; } } rc = ldap_parse_result( ld, res, &code, &matcheddn, &text, &refs, &ctrls, 0 ); if( rc != LDAP_SUCCESS ) { tool_perror( "ldap_parse_result", rc, NULL, NULL, NULL, NULL ); rc = EXIT_FAILURE; goto done; } rc = ldap_parse_extended_result( ld, res, &retoid, &retdata, 1 ); if( rc != LDAP_SUCCESS ) { tool_perror( "ldap_parse_extended_result", rc, NULL, NULL, NULL, NULL ); rc = EXIT_FAILURE; goto done; } if( retdata != NULL ) { ber_tag_t tag; char *s; ber = ber_init( retdata ); if( ber == NULL ) { perror( "ber_init" ); rc = EXIT_FAILURE; goto done; } /* we should check the tag */ tag = ber_scanf( ber, "{a}", &s); if( tag == LBER_ERROR ) { perror( "ber_scanf" ); } else { printf(_("New password: %s\n"), s); ber_memfree( s ); } ber_free( ber, 1 ); } else if ( code == LDAP_SUCCESS && newpw.bv_val == NULL ) { tool_perror( "ldap_parse_extended_result", LDAP_DECODING_ERROR, " new password expected", NULL, NULL, NULL ); } 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_memfree( retoid ); ber_bvfree( retdata ); rc = ( code == LDAP_SUCCESS ) ? EXIT_SUCCESS : EXIT_FAILURE; done: /* disconnect from server */ tool_exit( ld, rc ); }