openldap/clients/tools/ldappasswd.c
2002-02-08 19:10:06 +00:00

786 lines
18 KiB
C

/* $OpenLDAP$ */
/*
* Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
#include <stdio.h>
#include <ac/stdlib.h>
#include <ac/ctype.h>
#include <ac/signal.h>
#include <ac/socket.h>
#include <ac/string.h>
#include <ac/time.h>
#include <ac/unistd.h>
#include <ldap.h>
#include "lutil_ldap.h"
#include "ldap_defaults.h"
static int verbose = 0;
static void
usage(const char *s)
{
fprintf(stderr,
"Change password of an LDAP user\n\n"
"usage: %s [options] [user]\n"
" user: the autentication identity, commonly a DN\n"
"Password change options:\n"
" -a secret old password\n"
" -A prompt for old password\n"
" -s secret new password\n"
" -S prompt for new password\n"
"Common options:\n"
" -d level set LDAP debugging level to `level'\n"
" -D binddn bind DN\n"
" -f file read operations from `file'\n"
" -h host LDAP server(s)\n"
" -H URI LDAP Uniform Resource Indentifier(s)\n"
" -I use SASL Interactive mode\n"
" -n show what would be done but don't actually update\n"
" -O props SASL security properties\n"
" -p port port on LDAP server\n"
" -Q use SASL Quiet mode\n"
" -R realm SASL realm\n"
" -U authcid SASL authentication identity\n"
" -v run in verbose mode (diagnostics to standard output)\n"
" -w passwd bind passwd (for simple authentication)\n"
" -W prompt for bind passwd\n"
" -x Simple authentication\n"
" -X authzid SASL authorization identity (\"dn:<dn>\" or \"u:<user>\")\n"
" -Y mech SASL mechanism\n"
" -Z Start TLS request (-ZZ to require successful response)\n"
, s );
exit( EXIT_FAILURE );
}
int
main( int argc, char *argv[] )
{
int rc;
char *prog = NULL;
char *ldaphost = NULL;
char *ldapuri = NULL;
char *user = NULL;
char *binddn = NULL;
struct berval passwd = { 0, NULL };
char *newpw = NULL;
char *oldpw = NULL;
int want_bindpw = 0;
int want_newpw = 0;
int want_oldpw = 0;
int not = 0;
int i;
int ldapport = 0;
int debug = 0;
int version = -1;
int authmethod = -1;
int manageDSAit = 0;
#ifdef HAVE_CYRUS_SASL
unsigned sasl_flags = LDAP_SASL_AUTOMATIC;
char *sasl_realm = NULL;
char *sasl_authc_id = NULL;
char *sasl_authz_id = NULL;
char *sasl_mech = NULL;
char *sasl_secprops = NULL;
#endif
int use_tls = 0;
int referrals = 0;
LDAP *ld = NULL;
struct berval *bv = NULL;
int id, code;
LDAPMessage *res;
char *matcheddn = NULL, *text = NULL, **refs = NULL;
char *retoid = NULL;
struct berval *retdata = NULL;
prog = (prog = strrchr(argv[0], *LDAP_DIRSEP)) == NULL ? argv[0] : prog + 1;
while( (i = getopt( argc, argv, "Aa:Ss:"
"Cd:D:h:H:InO:p:QR:U:vw:WxX:Y:Z" )) != EOF )
{
switch (i) {
/* Password Options */
case 'A': /* prompt for old password */
want_oldpw++;
break;
case 'a': /* old password (secret) */
oldpw = strdup (optarg);
{
char* p;
for( p = optarg; *p != '\0'; p++ ) {
*p = '\0';
}
}
break;
case 'S': /* prompt for user password */
want_newpw++;
break;
case 's': /* new password (secret) */
newpw = strdup (optarg);
{
char* p;
for( p = optarg; *p != '\0'; p++ ) {
*p = '\0';
}
}
break;
/* Common Options (including options we don't use) */
case 'C':
referrals++;
break;
case 'd':
debug |= atoi( optarg );
break;
case 'D': /* bind DN */
if( binddn != NULL ) {
fprintf( stderr, "%s: -D previously specified\n", prog );
return EXIT_FAILURE;
}
binddn = strdup( optarg );
break;
case 'h': /* ldap host */
if( ldapuri != NULL ) {
fprintf( stderr, "%s: -h incompatible with -H\n", prog );
return EXIT_FAILURE;
}
if( ldaphost != NULL ) {
fprintf( stderr, "%s: -h previously specified\n", prog );
return EXIT_FAILURE;
}
ldaphost = strdup( optarg );
break;
case 'H': /* ldap URI */
if( ldaphost != NULL ) {
fprintf( stderr, "%s: -H incompatible with -h\n", prog );
return EXIT_FAILURE;
}
if( ldapport ) {
fprintf( stderr, "%s: -H incompatible with -p\n", prog );
return EXIT_FAILURE;
}
if( ldapuri != NULL ) {
fprintf( stderr, "%s: -H previously specified\n", prog );
return EXIT_FAILURE;
}
ldapuri = strdup( optarg );
break;
case 'I':
#ifdef HAVE_CYRUS_SASL
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -I incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 && authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: incompatible previous "
"authentication choice\n",
prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SASL;
version = LDAP_VERSION3;
sasl_flags = LDAP_SASL_INTERACTIVE;
break;
#else
fprintf( stderr, "%s: was not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
case 'k': /* kerberos bind */
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
if( version > LDAP_VERSION2 ) {
fprintf( stderr, "%s: -k incompatible with LDAPv%d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 ) {
fprintf( stderr, "%s: -k incompatible with previous "
"authentication choice\n", prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_KRBV4;
#else
fprintf( stderr, "%s: not compiled with Kerberos support\n", prog );
return EXIT_FAILURE;
#endif
break;
case 'K': /* kerberos bind, part one only */
#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
if( version > LDAP_VERSION2 ) {
fprintf( stderr, "%s: -k incompatible with LDAPv%d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 ) {
fprintf( stderr, "%s: incompatible with previous "
"authentication choice\n", prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_KRBV41;
#else
fprintf( stderr, "%s: not compiled with Kerberos support\n", prog );
return( EXIT_FAILURE );
#endif
break;
case 'M':
/* enable Manage DSA IT */
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -M incompatible with LDAPv%d\n",
prog, version );
return EXIT_FAILURE;
}
manageDSAit++;
version = LDAP_VERSION3;
break;
case 'n': /* print deletes, don't actually do them */
++not;
break;
case 'O':
#ifdef HAVE_CYRUS_SASL
if( sasl_secprops != NULL ) {
fprintf( stderr, "%s: -O previously specified\n", prog );
return EXIT_FAILURE;
}
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -O incompatible with LDAPv%d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 && authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: incompatible previous "
"authentication choice\n", prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SASL;
version = LDAP_VERSION3;
sasl_secprops = strdup( optarg );
#else
fprintf( stderr, "%s: not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
break;
case 'p':
if( ldapport ) {
fprintf( stderr, "%s: -p previously specified\n", prog );
return EXIT_FAILURE;
}
ldapport = atoi( optarg );
break;
case 'P':
switch( atoi(optarg) ) {
case 2:
if( version == LDAP_VERSION3 ) {
fprintf( stderr, "%s: -P 2 incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
version = LDAP_VERSION2;
break;
case 3:
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -P 2 incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
version = LDAP_VERSION3;
break;
default:
fprintf( stderr, "%s: protocol version should be 2 or 3\n",
prog );
usage( prog );
return( EXIT_FAILURE );
} break;
case 'Q':
#ifdef HAVE_CYRUS_SASL
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -Q incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 && authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: incompatible previous "
"authentication choice\n",
prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SASL;
version = LDAP_VERSION3;
sasl_flags = LDAP_SASL_QUIET;
break;
#else
fprintf( stderr, "%s: not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
case 'R':
#ifdef HAVE_CYRUS_SASL
if( sasl_realm != NULL ) {
fprintf( stderr, "%s: -R previously specified\n", prog );
return EXIT_FAILURE;
}
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -R incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 && authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: incompatible previous "
"authentication choice\n",
prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SASL;
version = LDAP_VERSION3;
sasl_realm = strdup( optarg );
#else
fprintf( stderr, "%s: not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
break;
case 'U':
#ifdef HAVE_CYRUS_SASL
if( sasl_authc_id != NULL ) {
fprintf( stderr, "%s: -U previously specified\n", prog );
return EXIT_FAILURE;
}
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -U incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 && authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: incompatible previous "
"authentication choice\n",
prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SASL;
version = LDAP_VERSION3;
sasl_authc_id = strdup( optarg );
#else
fprintf( stderr, "%s: not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
break;
case 'v': /* verbose mode */
verbose++;
break;
case 'w': /* password */
passwd.bv_val = strdup( optarg );
{
char* p;
for( p = optarg; *p != '\0'; p++ ) {
*p = '\0';
}
}
passwd.bv_len = strlen( passwd.bv_val );
break;
case 'W':
want_bindpw++;
break;
case 'Y':
#ifdef HAVE_CYRUS_SASL
if( sasl_mech != NULL ) {
fprintf( stderr, "%s: -Y previously specified\n", prog );
return EXIT_FAILURE;
}
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -Y incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 && authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: incompatible with authentication choice\n", prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SASL;
version = LDAP_VERSION3;
sasl_mech = strdup( optarg );
#else
fprintf( stderr, "%s: not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
break;
case 'x':
if( authmethod != -1 && authmethod != LDAP_AUTH_SIMPLE ) {
fprintf( stderr, "%s: incompatible with previous "
"authentication choice\n", prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SIMPLE;
break;
case 'X':
#ifdef HAVE_CYRUS_SASL
if( sasl_authz_id != NULL ) {
fprintf( stderr, "%s: -X previously specified\n", prog );
return EXIT_FAILURE;
}
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -X incompatible with LDAPv%d\n",
prog, version );
return EXIT_FAILURE;
}
if( authmethod != -1 && authmethod != LDAP_AUTH_SASL ) {
fprintf( stderr, "%s: -X incompatible with "
"authentication choice\n", prog );
return EXIT_FAILURE;
}
authmethod = LDAP_AUTH_SASL;
version = LDAP_VERSION3;
sasl_authz_id = strdup( optarg );
#else
fprintf( stderr, "%s: not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
break;
case 'Z':
#ifdef HAVE_TLS
if( version == LDAP_VERSION2 ) {
fprintf( stderr, "%s: -Z incompatible with version %d\n",
prog, version );
return EXIT_FAILURE;
}
version = LDAP_VERSION3;
use_tls++;
#else
fprintf( stderr, "%s: not compiled with TLS support\n",
prog );
return( EXIT_FAILURE );
#endif
break;
default:
fprintf( stderr, "%s: unrecognized option -%c\n",
prog, optopt );
usage (prog);
}
}
if (authmethod == -1) {
#ifdef HAVE_CYRUS_SASL
authmethod = LDAP_AUTH_SASL;
#else
authmethod = LDAP_AUTH_SIMPLE;
#endif
}
if( argc - optind > 1 ) {
usage( prog );
} else if ( argc - optind == 1 ) {
user = strdup( argv[optind] );
} else {
user = NULL;
}
if( want_oldpw && oldpw == NULL ) {
/* prompt for old password */
char *ckoldpw;
oldpw = strdup(getpassphrase("Old password: "));
ckoldpw = getpassphrase("Re-enter old password: ");
if( oldpw== NULL || ckoldpw == NULL ||
strcmp( oldpw, ckoldpw ))
{
fprintf( stderr, "passwords do not match\n" );
return EXIT_FAILURE;
}
}
if( want_newpw && newpw == NULL ) {
/* prompt for new password */
char *cknewpw;
newpw = strdup(getpassphrase("New password: "));
cknewpw = getpassphrase("Re-enter new password: ");
if( newpw== NULL || cknewpw == NULL ||
strcmp( newpw, cknewpw ))
{
fprintf( stderr, "passwords do not match\n" );
return EXIT_FAILURE;
}
}
if (want_bindpw && passwd.bv_val == NULL ) {
/* handle bind password */
passwd.bv_val = strdup( getpassphrase("Enter bind password: "));
passwd.bv_len = passwd.bv_val ? strlen( passwd.bv_val ) : 0;
}
if ( debug ) {
if( ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &debug ) != LBER_OPT_SUCCESS ) {
fprintf( stderr, "Could not set LBER_OPT_DEBUG_LEVEL %d\n", debug );
}
if( ldap_set_option( NULL, LDAP_OPT_DEBUG_LEVEL, &debug ) != LDAP_OPT_SUCCESS ) {
fprintf( stderr, "Could not set LDAP_OPT_DEBUG_LEVEL %d\n", debug );
}
}
#ifdef SIGPIPE
(void) SIGNAL( SIGPIPE, SIG_IGN );
#endif
/* connect to server */
if( ( ldaphost != NULL || ldapport ) && ( ldapuri == NULL ) ) {
if ( verbose ) {
fprintf( stderr, "ldap_init( %s, %d )\n",
ldaphost != NULL ? ldaphost : "<DEFAULT>",
ldapport );
}
ld = ldap_init( ldaphost, ldapport );
if( ld == NULL ) {
perror("ldapsearch: ldap_init");
return EXIT_FAILURE;
}
} else {
if ( verbose ) {
fprintf( stderr, "ldap_initialize( %s )\n",
ldapuri != NULL ? ldapuri : "<DEFAULT>" );
}
rc = ldap_initialize( &ld, ldapuri );
if( rc != LDAP_SUCCESS ) {
fprintf( stderr, "Could not create LDAP session handle (%d): %s\n",
rc, ldap_err2string(rc) );
return EXIT_FAILURE;
}
}
/* referrals */
if (ldap_set_option( ld, LDAP_OPT_REFERRALS,
referrals ? LDAP_OPT_ON : LDAP_OPT_OFF ) != LDAP_OPT_SUCCESS )
{
fprintf( stderr, "Could not set LDAP_OPT_REFERRALS %s\n",
referrals ? "on" : "off" );
return EXIT_FAILURE;
}
/* LDAPv3 only */
version = LDAP_VERSION3;
rc = ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version );
if(rc != LDAP_OPT_SUCCESS ) {
fprintf( stderr, "Could not set LDAP_OPT_PROTOCOL_VERSION %d\n", version );
return EXIT_FAILURE;
}
if ( use_tls && ( ldap_start_tls_s( ld, NULL, NULL ) != LDAP_SUCCESS )) {
ldap_perror( ld, "ldap_start_tls" );
if ( use_tls > 1 ) {
return( EXIT_FAILURE );
}
}
if ( authmethod == LDAP_AUTH_SASL ) {
#ifdef HAVE_CYRUS_SASL
void *defaults;
if( sasl_secprops != NULL ) {
rc = ldap_set_option( ld, LDAP_OPT_X_SASL_SECPROPS,
(void *) sasl_secprops );
if( rc != LDAP_OPT_SUCCESS ) {
fprintf( stderr,
"Could not set LDAP_OPT_X_SASL_SECPROPS: %s\n",
sasl_secprops );
return( EXIT_FAILURE );
}
}
defaults = lutil_sasl_defaults( ld,
sasl_mech,
sasl_realm,
sasl_authc_id,
passwd.bv_val,
sasl_authz_id );
rc = ldap_sasl_interactive_bind_s( ld, binddn,
sasl_mech, NULL, NULL,
sasl_flags, lutil_sasl_interact, defaults );
if( rc != LDAP_SUCCESS ) {
ldap_perror( ld, "ldap_sasl_interactive_bind_s" );
return( EXIT_FAILURE );
}
#else
fprintf( stderr, "%s: not compiled with SASL support\n",
prog );
return( EXIT_FAILURE );
#endif
}
else {
if ( ldap_bind_s( ld, binddn, passwd.bv_val, authmethod )
!= LDAP_SUCCESS ) {
ldap_perror( ld, "ldap_bind" );
return( EXIT_FAILURE );
}
}
if( user != NULL || oldpw != NULL || newpw != NULL ) {
/* build change password control */
BerElement *ber = ber_alloc_t( LBER_USE_DER );
if( ber == NULL ) {
perror( "ber_alloc_t" );
ldap_unbind( ld );
return EXIT_FAILURE;
}
ber_printf( ber, "{" /*}*/ );
if( user != NULL ) {
ber_printf( ber, "ts",
LDAP_TAG_EXOP_MODIFY_PASSWD_ID, user );
free(user);
}
if( oldpw != NULL ) {
ber_printf( ber, "ts",
LDAP_TAG_EXOP_MODIFY_PASSWD_OLD, oldpw );
free(oldpw);
}
if( newpw != NULL ) {
ber_printf( ber, "ts",
LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, newpw );
free(newpw);
}
ber_printf( ber, /*{*/ "N}" );
rc = ber_flatten( ber, &bv );
if( rc < 0 ) {
perror( "ber_flatten" );
ldap_unbind( ld );
return EXIT_FAILURE;
}
ber_free( ber, 1 );
}
if ( not ) {
rc = LDAP_SUCCESS;
goto skip;
}
rc = ldap_extended_operation( ld,
LDAP_EXOP_MODIFY_PASSWD, bv,
NULL, NULL, &id );
ber_bvfree( bv );
if( rc != LDAP_SUCCESS ) {
ldap_perror( ld, "ldap_extended_operation" );
ldap_unbind( ld );
return EXIT_FAILURE;
}
rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, NULL, &res );
if ( rc < 0 ) {
ldap_perror( ld, "ldappasswd: ldap_result" );
return rc;
}
rc = ldap_parse_result( ld, res, &code, &matcheddn, &text, &refs, NULL, 0 );
if( rc != LDAP_SUCCESS ) {
ldap_perror( ld, "ldap_parse_result" );
return rc;
}
rc = ldap_parse_extended_result( ld, res, &retoid, &retdata, 1 );
if( rc != LDAP_SUCCESS ) {
ldap_perror( ld, "ldap_parse_result" );
return rc;
}
if( retdata != NULL ) {
ber_tag_t tag;
char *s;
BerElement *ber = ber_init( retdata );
if( ber == NULL ) {
perror( "ber_init" );
ldap_unbind( ld );
return EXIT_FAILURE;
}
/* 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);
free( s );
}
ber_free( ber, 1 );
}
if( verbose || code != LDAP_SUCCESS || matcheddn || text || refs ) {
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] );
}
}
}
ber_memfree( text );
ber_memfree( matcheddn );
ber_memvfree( (void **) refs );
ber_memfree( retoid );
ber_bvfree( retdata );
skip:
/* disconnect from server */
ldap_unbind (ld);
return EXIT_SUCCESS;
}