mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
522 lines
11 KiB
C
522 lines
11 KiB
C
/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/stdlib.h>
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#include <ac/ctype.h>
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#include <ac/signal.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include <ac/unistd.h>
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#include <ldap.h>
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#include "lutil_ldap.h"
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#include "ldap_defaults.h"
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static int verbose = 0;
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static void
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usage(const char *s)
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{
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fprintf(stderr,
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"Change the password of an LDAP entry\n\n"
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"usage: %s [options] dn\n"
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" dn: the DN of the entry whose password must be changed\n"
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"Password change options:\n"
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" -a secret\told password\n"
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" -A\t\tprompt for old password\n"
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" -s secret\tnew password\n"
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" -S\t\tprompt for new password\n"
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"Common options:\n"
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" -d level\tdebugging level\n"
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" -C\t\tchase referrals\n"
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" -D binddn\tbind DN\n"
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" -h host\t\tLDAP server (default: localhost)\n"
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" -n\t\tmake no modifications\n"
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" -O secprops\tSASL security properties\n"
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" -p port\t\tport on LDAP server\n"
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" -U user\t\tSASL authentication identity (username)\n"
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" -v\t\tverbose mode\n"
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" -w passwd\tbind password (for simple authentication)\n"
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" -W\t\tprompt for bind password\n"
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" -x\t\tSimple authentication\n"
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" -X id\t\tSASL authorization identity (\"dn:<dn>\" or \"u:<user>\")\n"
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" -Y mech\t\tSASL mechanism\n"
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" -Z\t\tissue Start TLS request (-ZZ to require successful response)\n"
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, s );
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exit( EXIT_FAILURE );
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}
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int
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main( int argc, char *argv[] )
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{
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int rc;
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char *prog = NULL;
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char *ldaphost = NULL;
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char *dn = NULL;
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char *binddn = NULL;
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struct berval passwd = { 0, NULL };
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char *newpw = NULL;
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char *oldpw = NULL;
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int want_bindpw = 0;
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int want_newpw = 0;
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int want_oldpw = 0;
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int noupdates = 0;
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int i;
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int ldapport = 0;
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int debug = 0;
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int version = -1;
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int authmethod = -1;
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#ifdef HAVE_CYRUS_SASL
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char *sasl_authc_id = NULL;
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char *sasl_authz_id = NULL;
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char *sasl_mech = NULL;
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char *sasl_secprops = NULL;
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#endif
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int use_tls = 0;
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int referrals = 0;
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LDAP *ld;
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struct berval *bv = NULL;
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int id, code;
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LDAPMessage *res;
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char *matcheddn = NULL, *text = NULL, **refs = NULL;
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char *retoid = NULL;
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struct berval *retdata = NULL;
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prog = (prog = strrchr(argv[0], *LDAP_DIRSEP)) == NULL ? argv[0] : ++prog;
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if (argc == 1)
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usage (argv[0]);
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while( (i = getopt( argc, argv,
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"Aa:Ss:" "Cd:D:h:nO:p:U:vw:WxX:Y:Z" )) != EOF )
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{
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switch (i) {
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/* Password Options */
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case 'A': /* prompt for old password */
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want_oldpw++;
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break;
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case 'a': /* old password (secret) */
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oldpw = strdup (optarg);
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{
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char* p;
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for( p = optarg; *p == '\0'; p++ ) {
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*p = '*';
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}
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}
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break;
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case 'S': /* prompt for user password */
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want_newpw++;
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break;
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case 's': /* new password (secret) */
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newpw = strdup (optarg);
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{
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char* p;
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for( p = optarg; *p == '\0'; p++ ) {
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*p = '*';
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}
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}
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break;
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/* Common Options */
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case 'C':
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referrals++;
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break;
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case 'D': /* bind distinguished name */
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binddn = strdup (optarg);
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break;
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case 'd': /* debugging option */
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debug |= atoi (optarg);
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break;
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case 'h': /* ldap host */
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ldaphost = strdup (optarg);
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break;
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case 'n': /* don't update entry(s) */
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noupdates++;
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break;
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case 'p': /* ldap port */
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ldapport = strtol( optarg, NULL, 10 );
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break;
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case 'v': /* verbose */
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verbose++;
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break;
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case 'W': /* prompt for bind password */
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want_bindpw++;
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break;
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case 'w': /* bind password */
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passwd.bv_val = strdup (optarg);
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{
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char* p;
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for( p = optarg; *p == '\0'; p++ ) {
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*p = '*';
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}
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}
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passwd.bv_len = strlen( passwd.bv_val );
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break;
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case 'O':
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#ifdef HAVE_CYRUS_SASL
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sasl_secprops = strdup( optarg );
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authmethod = LDAP_AUTH_SASL;
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#else
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fprintf( stderr, "%s was not compiled with SASL support\n",
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argv[0] );
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return( EXIT_FAILURE );
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#endif
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break;
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case 'Y':
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#ifdef HAVE_CYRUS_SASL
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if ( strcasecmp( optarg, "any" ) &&
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strcmp( optarg, "*" ) ) {
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sasl_mech = strdup( optarg );
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}
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authmethod = LDAP_AUTH_SASL;
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#else
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fprintf( stderr, "%s was not compiled with SASL "
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"support\n", argv[0] );
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return( EXIT_FAILURE );
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#endif
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break;
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case 'U':
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#ifdef HAVE_CYRUS_SASL
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sasl_authc_id = strdup( optarg );
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authmethod = LDAP_AUTH_SASL;
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#else
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fprintf( stderr, "%s was not compiled with SASL "
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"support\n", argv[0] );
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return( EXIT_FAILURE );
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#endif
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break;
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case 'x':
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if( authmethod != -1 && authmethod != LDAP_AUTH_SIMPLE ) {
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fprintf( stderr, "%s: incompatible with previous "
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"authentication choice\n", prog );
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return EXIT_FAILURE;
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}
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authmethod = LDAP_AUTH_SIMPLE;
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break;
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case 'X':
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#ifdef HAVE_CYRUS_SASL
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sasl_authz_id = strdup( optarg );
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authmethod = LDAP_AUTH_SASL;
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#else
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fprintf( stderr, "%s was not compiled with SASL "
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"support\n", argv[0] );
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return( EXIT_FAILURE );
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#endif
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break;
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case 'Z':
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#ifdef HAVE_TLS
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use_tls++;
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#else
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fprintf( stderr, "%s was not compiled with TLS "
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"support\n", argv[0] );
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return( EXIT_FAILURE );
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#endif
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break;
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default:
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fprintf( stderr, "%s: unrecongized option -%c\n",
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prog, optopt );
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usage (argv[0]);
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}
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}
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if( argc - optind != 1 ) {
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usage( argv[0] );
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}
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dn = strdup( argv[optind] );
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if( want_oldpw && oldpw == NULL ) {
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/* prompt for old password */
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char *ckoldpw;
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newpw = strdup(getpassphrase("Old password: "));
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ckoldpw = getpassphrase("Re-enter old password: ");
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if( newpw== NULL || ckoldpw == NULL ||
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strncmp( oldpw, ckoldpw, strlen(oldpw) ))
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{
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fprintf( stderr, "passwords do not match\n" );
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return EXIT_FAILURE;
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}
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}
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if( want_newpw && newpw == NULL ) {
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/* prompt for new password */
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char *cknewpw;
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newpw = strdup(getpassphrase("New password: "));
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cknewpw = getpassphrase("Re-enter new password: ");
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if( newpw== NULL || cknewpw == NULL ||
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strncmp( newpw, cknewpw, strlen(newpw) ))
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{
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fprintf( stderr, "passwords do not match\n" );
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return EXIT_FAILURE;
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}
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}
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if( binddn == NULL && dn != NULL ) {
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binddn = dn;
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dn = NULL;
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if( passwd.bv_val == NULL ) {
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passwd.bv_val = oldpw;
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passwd.bv_len = oldpw == NULL ? 0 : strlen( oldpw );
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}
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}
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if (want_bindpw && passwd.bv_val == NULL ) {
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/* handle bind password */
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fprintf( stderr, "Bind DN: %s\n", binddn );
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passwd.bv_val = strdup( getpassphrase("Enter bind password: "));
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passwd.bv_len = passwd.bv_val ? strlen( passwd.bv_val ) : 0;
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}
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if ( debug ) {
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if( ber_set_option( NULL, LBER_OPT_DEBUG_LEVEL, &debug ) != LBER_OPT_SUCCESS ) {
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fprintf( stderr, "Could not set LBER_OPT_DEBUG_LEVEL %d\n", debug );
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}
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if( ldap_set_option( NULL, LDAP_OPT_DEBUG_LEVEL, &debug ) != LDAP_OPT_SUCCESS ) {
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fprintf( stderr, "Could not set LDAP_OPT_DEBUG_LEVEL %d\n", debug );
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}
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}
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#ifdef SIGPIPE
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(void) SIGNAL( SIGPIPE, SIG_IGN );
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#endif
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/* connect to server */
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if ((ld = ldap_init( ldaphost, ldapport )) == NULL) {
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perror("ldap_init");
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return EXIT_FAILURE;
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}
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/* referrals */
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if (ldap_set_option( ld, LDAP_OPT_REFERRALS,
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referrals ? LDAP_OPT_ON : LDAP_OPT_OFF ) != LDAP_OPT_SUCCESS )
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{
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fprintf( stderr, "Could not set LDAP_OPT_REFERRALS %s\n",
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referrals ? "on" : "off" );
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return EXIT_FAILURE;
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}
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/* LDAPv3 only */
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version = 3;
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rc = ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version );
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if(rc != LDAP_OPT_SUCCESS ) {
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fprintf( stderr, "Could not set LDAP_OPT_PROTOCOL_VERSION %d\n", version );
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return EXIT_FAILURE;
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}
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if ( use_tls && ldap_start_tls_s( ld, NULL, NULL ) != LDAP_SUCCESS ) {
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if ( use_tls > 1 ) {
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ldap_perror( ld, "ldap_start_tls" );
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return( EXIT_FAILURE );
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}
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fprintf( stderr, "WARNING: could not start TLS\n" );
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}
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if ( authmethod == LDAP_AUTH_SASL ) {
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#ifdef HAVE_CYRUS_SASL
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if( sasl_secprops != NULL ) {
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rc = ldap_set_option( ld, LDAP_OPT_X_SASL_SECPROPS,
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(void *) sasl_secprops );
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if( rc != LDAP_OPT_SUCCESS ) {
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fprintf( stderr,
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"Could not set LDAP_OPT_X_SASL_SECPROPS: %s\n",
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sasl_secprops );
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return( EXIT_FAILURE );
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}
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}
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rc = ldap_sasl_interactive_bind_s( ld, binddn,
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sasl_mech, NULL, NULL, lutil_sasl_interact );
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if( rc != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_sasl_interactive_bind_s" );
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return( EXIT_FAILURE );
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}
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#else
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fprintf( stderr, "%s was not compiled with SASL support\n",
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argv[0] );
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return( EXIT_FAILURE );
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#endif
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}
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else {
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if ( ldap_bind_s( ld, binddn, passwd.bv_val, authmethod )
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!= LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_bind" );
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return( EXIT_FAILURE );
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}
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}
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if( dn != NULL || oldpw != NULL || newpw != NULL ) {
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/* build change password control */
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BerElement *ber = ber_alloc_t( LBER_USE_DER );
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if( ber == NULL ) {
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perror( "ber_alloc_t" );
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ldap_unbind( ld );
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return EXIT_FAILURE;
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}
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ber_printf( ber, "{" /*}*/ );
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if( dn != NULL ) {
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ber_printf( ber, "ts",
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LDAP_TAG_EXOP_X_MODIFY_PASSWD_ID, dn );
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free(dn);
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}
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if( oldpw != NULL ) {
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ber_printf( ber, "ts",
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LDAP_TAG_EXOP_X_MODIFY_PASSWD_NEW, oldpw );
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free(oldpw);
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}
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if( newpw != NULL ) {
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ber_printf( ber, "ts",
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LDAP_TAG_EXOP_X_MODIFY_PASSWD_NEW, newpw );
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free(newpw);
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}
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ber_printf( ber, /*{*/ "N}" );
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rc = ber_flatten( ber, &bv );
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if( rc < 0 ) {
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perror( "ber_flatten" );
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ldap_unbind( ld );
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return EXIT_FAILURE;
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}
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ber_free( ber, 1 );
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}
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if ( noupdates ) {
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rc = LDAP_SUCCESS;
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goto skip;
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}
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rc = ldap_extended_operation( ld,
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LDAP_EXOP_X_MODIFY_PASSWD, bv,
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NULL, NULL, &id );
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ber_bvfree( bv );
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if( rc != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_extended_operation" );
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ldap_unbind( ld );
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return EXIT_FAILURE;
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}
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rc = ldap_result( ld, LDAP_RES_ANY, LDAP_MSG_ALL, NULL, &res );
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if ( rc < 0 ) {
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ldap_perror( ld, "ldappasswd: ldap_result" );
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return rc;
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}
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rc = ldap_parse_result( ld, res, &code, &matcheddn, &text, &refs, NULL, 0 );
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if( rc != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_parse_result" );
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return rc;
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}
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rc = ldap_parse_extended_result( ld, res, &retoid, &retdata, 1 );
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if( rc != LDAP_SUCCESS ) {
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ldap_perror( ld, "ldap_parse_result" );
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return rc;
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}
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if( retdata != NULL ) {
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ber_tag_t tag;
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char *s;
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BerElement *ber = ber_init( retdata );
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if( ber == NULL ) {
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perror( "ber_init" );
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ldap_unbind( ld );
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return EXIT_FAILURE;
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}
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/* we should check the tag */
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tag = ber_scanf( ber, "{a}", &s);
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if( tag == LBER_ERROR ) {
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perror( "ber_scanf" );
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} else {
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printf("New password: %s\n", s);
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free( s );
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}
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ber_free( ber, 1 );
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}
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if( verbose || code != LDAP_SUCCESS || matcheddn || text || refs ) {
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printf( "Result: %s (%d)\n", ldap_err2string( code ), code );
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if( text && *text ) {
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printf( "Additional info: %s\n", text );
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}
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if( matcheddn && *matcheddn ) {
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printf( "Matched DN: %s\n", matcheddn );
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}
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if( refs ) {
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int i;
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for( i=0; refs[i]; i++ ) {
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printf("Referral: %s\n", refs[i] );
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}
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}
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}
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ber_memfree( text );
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ber_memfree( matcheddn );
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ber_memvfree( (void **) refs );
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ber_memfree( retoid );
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ber_bvfree( retdata );
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skip:
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/* disconnect from server */
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ldap_unbind (ld);
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return EXIT_SUCCESS;
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}
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