mirror of
https://git.openldap.org/openldap/openldap.git
synced 2025-12-24 00:29:35 -05:00
Add ldappasswd program contributed by David E. Storey <dave@tamos.net>
This commit is contained in:
Kurt Zeilenga
parent
08134c9e16
commit
f0a32aed71
3 changed files with 525 additions and 3 deletions
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@ -1,8 +1,8 @@
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##
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## Makefile for LDAP tools
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##
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SRCS = ldapsearch.c ldapmodify.c ldapdelete.c ldapmodrdn.c
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OBJS = ldapsearch.o ldapmodify.o ldapdelete.o ldapmodrdn.o
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SRCS = ldapsearch.c ldapmodify.c ldapdelete.c ldapmodrdn.c ldappasswd.c
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OBJS = ldapsearch.o ldapmodify.o ldapdelete.o ldapmodrdn.o ldappasswd.o
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XLIBS = $(KRB_LIBS)
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@ -11,7 +11,7 @@ LDAP_LIBDIR= ../../libraries
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XSRCS = ldsversion.c ldmversion.c lddversion.c ldrversion.c
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PROGRAMS = ldapsearch ldapmodify ldapdelete ldapmodrdn ldapadd
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PROGRAMS = ldapsearch ldapmodify ldapdelete ldapmodrdn ldapadd ldappasswd
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ldapsearch: ldsversion.o
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$(LTLINK) -o $@ ldapsearch.o ldsversion.o $(LIBS)
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@ -25,6 +25,9 @@ ldapdelete: lddversion.o
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ldapmodrdn: ldrversion.o
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$(LTLINK) -o $@ ldapmodrdn.o ldrversion.o $(LIBS)
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ldappasswd: ldappasswd.o
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$(LTLINK) -o $@ ldappasswd.o $(LIBS) @LUTIL_LIBS@ $(LDAP_LIBPATH) -llutil
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ldapadd: ldapmodify
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$(RM) $@
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$(LN) ldapmodify ldapadd
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@ -67,5 +70,6 @@ install-local: FORCE
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$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldapmodify $(bindir)
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$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldapdelete $(bindir)
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$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldapmodrdn $(bindir)
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$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldappasswd $(bindir)
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$(RM) $(bindir)/ldapadd
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$(LN) $(bindir)/ldapmodify $(bindir)/ldapadd
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400
clients/tools/ldappasswd.c
Normal file
400
clients/tools/ldappasswd.c
Normal file
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@ -0,0 +1,400 @@
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/*
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* Copyright 1998, David E. Storey, All rights reserved.
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* This software is not subject to any license of The Murphy Group, Inc.
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* or George Mason University.
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*
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* Redistribution and use in source and binary forms are permitted only
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* as authorized by the OpenLDAP Public License. A copy of this
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* license is available at http://www.OpenLDAP.org/license.html or
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* in file LICENSE in the top-level directory of the distribution.
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*
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* ldappasswd.c - program to modify passwords in an LDAP tree
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*
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* Created: 1998-11-26
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* Author: David E. Storey <dave@tamos.net>
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* Last Modified: 1998-12-05
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*
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* ToDo: passwd style change of password (termcap?)
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* option for referral handling
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* cracklib support?
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* kerberos support? (is this really necessary?)
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* update "shadow" fields?
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* create/view/change password policies?
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*
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* Note: I am totally FOR comments and suggestions!
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <ac/string.h>
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#include <ac/unistd.h>
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#include <lber.h>
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#include <ldap.h>
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#include <lutil.h>
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#include <lutil_md5.h>
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#include <lutil_sha1.h>
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#include "ldapconfig.h"
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#define LDAP_PASSWD_ATTRIB "userPassword"
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typedef enum {
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HASHTYPE_NONE,
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HASHTYPE_CRYPT,
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HASHTYPE_MD5,
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HASHTYPE_SHA1
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} HashTypes;
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struct hash_t {
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char *name;
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int namesz;
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int (*func)(const char *, char *);
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HashTypes type;
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};
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const char crypt64[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789./";
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char *base = NULL;
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char *binddn = NULL;
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char *bindpw = NULL;
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char *ldaphost = "localhost";
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char *pwattr = LDAP_PASSWD_ATTRIB;
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char *targetdn = NULL;
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char *filtpattern = NULL;
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int ldapport = LDAP_PORT;
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int noupdates = 0;
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int verbose = 0;
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int hashtype = HASHTYPE_CRYPT;
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int scope = LDAP_SCOPE_SUBTREE;
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/*** functions ***/
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/*
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* if you'd like to write a better salt generator, please, be my guest.
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* I just needed *something*. It's actually halfway effective for small,
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* two character salts and it can come up with sequentially different
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* salts.
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*/
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void
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crypt_make_salt(char *salt)
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{
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struct timeval tv;
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int i;
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char t_salt[5];
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/* grab current time */
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gettimeofday(&tv, (struct timezone *) 0);
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i += tv.tv_usec + (int)&salt;
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strncpy(t_salt, (char *)&i, sizeof(i));
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for (i = 0; i < sizeof(i); i++)
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salt[i] = crypt64[t_salt[i] % (sizeof(crypt64) - 1)];
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salt[i] = '\0';
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}
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int
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hash_none(const char *pw_in, char *pw_out)
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{
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strcpy(pw_out, pw_in);
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return(1);
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}
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int
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hash_crypt(const char *pw_in, char *pw_out)
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{
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char salt[5];
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crypt_make_salt(salt);
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strcpy(pw_out, crypt(pw_in, salt));
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return(1);
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}
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int
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hash_md5(const char *pw_in, char *pw_out)
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{
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lutil_MD5_CTX MD5context;
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unsigned char MD5digest[16];
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char base64digest[25]; /* ceiling(sizeof(input)/3) * 4 + 1 */
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lutil_MD5Init(&MD5context);
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lutil_MD5Update(&MD5context, (unsigned char *)pw_in, strlen(pw_in));
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lutil_MD5Final(MD5digest, &MD5context);
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if (lutil_b64_ntop(MD5digest, sizeof(MD5digest), base64digest, sizeof(base64digest)) < 0)
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return (0);
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strcpy(pw_out, base64digest);
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return(1);
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}
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int
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hash_sha1(const char *pw_in, char *pw_out)
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{
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lutil_SHA1_CTX SHA1context;
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unsigned char SHA1digest[20];
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char base64digest[29]; /* ceiling(sizeof(input)/3) * 4 + 1 */
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lutil_SHA1Init(&SHA1context);
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lutil_SHA1Update(&SHA1context, (unsigned char *)pw_in, strlen(pw_in));
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lutil_SHA1Final(SHA1digest, &SHA1context);
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if (lutil_b64_ntop(SHA1digest, sizeof(SHA1digest), base64digest, sizeof(base64digest)) < 0)
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return(0);
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strcpy(pw_out, base64digest);
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return(1);
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}
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static struct hash_t hashes[] = {
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{"none", 4, hash_none, HASHTYPE_NONE},
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{"crypt", 5, hash_crypt, HASHTYPE_CRYPT},
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{"md5", 3, hash_md5, HASHTYPE_MD5},
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{"sha", 3, hash_sha1, HASHTYPE_SHA1},
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{NULL, 0, NULL, HASHTYPE_NONE}
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};
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int
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modify_dn(LDAP *ld, char *targetdn, char *newpw)
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{
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int ret = 0;
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char hashed_pw[128] = {'\0'};
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char buf[128] = {'\0'};
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char *strvals[2] = {buf, NULL};
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LDAPMod mod, *mods[2] = {&mod, NULL};
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if (!ld || !targetdn || !newpw)
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return(1);
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/* hash password */
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hashes[hashtype].func(newpw, hashed_pw);
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if (hashtype)
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sprintf(buf, "{%s}%s", hashes[hashtype].name, hashed_pw);
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else
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sprintf(buf, "%s", hashed_pw);
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if (verbose > 0)
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{
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printf("%s", targetdn);
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if (verbose > 1)
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{
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printf(":%s", buf);
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if (verbose > 2)
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printf(":%s", newpw);
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}
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printf("\n");
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}
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mod.mod_vals.modv_strvals = strvals;
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mod.mod_type = pwattr;
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mod.mod_op = LDAP_MOD_REPLACE;
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if (!noupdates && (ret = ldap_modify_s(ld, targetdn, mods)) != LDAP_SUCCESS)
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ldap_perror(ld, "ldap_modify_s");
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return(ret);
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}
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void
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usage(char *s)
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{
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fprintf(stderr, "usage: %s [options] [filter]\n", s);
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fprintf(stderr, " -a attrib password attribute (default: userPassword)\n");
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fprintf(stderr, " -b basedn basedn to perform searches\n");
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fprintf(stderr, " -c hash hash type: none, crypt, md5, sha (default: crypt)\n");
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fprintf(stderr, " -D binddn bind dn\n");
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fprintf(stderr, " -d level debugging level\n");
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fprintf(stderr, " -h host ldap server (default: localhost)\n");
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fprintf(stderr, " -l time time limit\n");
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fprintf(stderr, " -n make no modifications\n");
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fprintf(stderr, " -p port ldap port\n");
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fprintf(stderr, " -s scope search scope: base, one, sub (default: sub)\n");
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fprintf(stderr, " -t targetdn dn to change password\n");
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fprintf(stderr, " -W newpass new password\n");
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fprintf(stderr, " -w passwd bind password (for simple authentication)\n");
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fprintf(stderr, " -v verbose\n");
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fprintf(stderr, " -z size size limit\n");
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exit(1);
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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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char *newpw = NULL;
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int i, j;
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int sizelimit = LDAP_NO_LIMIT;
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int timelimit = LDAP_NO_LIMIT;
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LDAP *ld;
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while ((i = getopt(argc, argv, "D:W:a:b:c:d:h:l:np:s:t:vw:z:")) != EOF)
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{
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switch(i)
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{
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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 'W': /* new password */
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if (optarg)
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newpw = strdup(optarg);
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break;
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case 'a': /* password attribute */
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if (optarg)
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pwattr = strdup(optarg);
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break;
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case 'b': /* base search dn */
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if (optarg)
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base = strdup(optarg);
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break;
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case 'c': /* hashes */
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for (j = 0; hashes[j].name; j++)
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{
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if (!strncasecmp(optarg, hashes[j].name, hashes[j].namesz))
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{
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hashtype = hashes[j].type;
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break;
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}
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}
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if (!hashes[j].name)
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{
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fprintf(stderr, "hash type: %s is unknown\n", optarg);
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usage(argv[0]);
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}
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break;
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case 'd': /* debugging option */
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#ifdef LDAP_DEBUG
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ldap_debug = lber_debug = atoi(optarg); /* */
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#else
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fprintf(stderr, "compile with -DLDAP_DEBUG for debugging\n");
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#endif
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break;
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case 'h': /* ldap host */
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if (optarg)
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ldaphost = strdup(optarg);
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break;
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case 'l': /* time limit */
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if (optarg)
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timelimit = strtol(optarg, NULL, 10);
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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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if (optarg)
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ldapport = strtol(optarg, NULL, 10);
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break;
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case 's': /* scope */
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if (strncasecmp(optarg, "base", 4) == 0)
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scope = LDAP_SCOPE_BASE;
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else if (strncasecmp(optarg, "one", 3) == 0)
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scope = LDAP_SCOPE_ONELEVEL;
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else if (strncasecmp(optarg, "sub", 3) == 0)
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scope = LDAP_SCOPE_SUBTREE;
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else {
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fprintf(stderr, "scope should be base, one, or sub\n" );
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usage(argv[0]);
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}
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break;
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case 't': /* password type */
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if (optarg)
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targetdn = strdup(optarg);
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else
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targetdn = binddn;
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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': /* bind password */
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bindpw = strdup(optarg);
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break;
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case 'z': /* time limit */
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if (optarg)
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sizelimit = strtol(optarg, NULL, 10);
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break;
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default:
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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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filtpattern = strdup(argv[optind]);
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if (!filtpattern && !targetdn)
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{
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fprintf(stderr, "No filter or targetdn(-t)\n");
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usage(argv[0]);
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}
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if (!newpw)
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{
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fprintf(stderr, "Need a password (-W)\n");
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usage(argv[0]);
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}
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/* connect to server */
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if ((ld = ldap_open(ldaphost, ldapport)) == NULL)
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{
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perror(ldaphost);
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return(1);
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}
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/* set options */
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ldap_set_option(ld, LDAP_OPT_TIMELIMIT, (void *)&timelimit);
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ldap_set_option(ld, LDAP_OPT_SIZELIMIT, (void *)&sizelimit);
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/* authenticate to server */
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if (ldap_bind_s(ld, binddn, bindpw, LDAP_AUTH_SIMPLE) != LDAP_SUCCESS)
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{
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ldap_perror(ld, "ldap_bind");
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return(1);
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}
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if (filtpattern)
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{
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char filter[BUFSIZ];
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LDAPMessage *result = NULL, *e = NULL;
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char *attrs[] = {"dn", NULL};
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/* search */
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sprintf(filter, "%s", filtpattern);
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i = ldap_search_s(ld, base, scope, filter, attrs, 1, &result);
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if (i != LDAP_SUCCESS && i != LDAP_TIMELIMIT_EXCEEDED && i != LDAP_SIZELIMIT_EXCEEDED)
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{
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ldap_perror(ld, "ldap_search_s");
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return(1);
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}
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for (e = ldap_first_entry(ld, result); e; e = ldap_next_entry(ld, e))
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{
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char *dn = ldap_get_dn(ld, e);
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if (dn)
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{
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modify_dn(ld, dn, newpw);
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free(dn);
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}
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}
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}
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if (targetdn)
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modify_dn(ld, targetdn, newpw);
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/* disconnect from server */
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ldap_unbind(ld);
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return(0);
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}
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118
doc/man/man1/ldappasswd.1
Normal file
118
doc/man/man1/ldappasswd.1
Normal file
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@ -0,0 +1,118 @@
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.TH LDAPPASSWD 1 "5 December 1998" "LDAPPasswd"
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.SH NAME
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ldappasswd \- change the password of an LDAP entry
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.SH SYNOPSIS
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.B ldappasswd
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[\c
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.BI \-a \ passwdattribute\fR]
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[\c
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.BI \-b \ searchbase\fR]
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[\c
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.BI \-c \ none\fR\||\|\fIcrypt\fR\||\|\fImd5\fR\||\|\fIsha\fR]
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[\c
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.BI \-D \ binddn\fR]
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[\c
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.BI \-d \ debuglevel\fR]
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[\c
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.BI \-h \ ldaphost\fR]
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[\c
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.BI \-l \ searchtime\fR]
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[\c
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.B \-n\fR]
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[\c
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.BI \-p \ ldapport\fR]
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[\c
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.BI \-s \ base\fR\||\|\fIone\fR\||\|\fIsub\fR]
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[\c
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.BR \-t \ [\fItargetdn\fR]\ ]
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[\c
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.B \-v\fR]
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[\c
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.BI \-W \ newpasswd\fR]
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[\c
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.BI \-w \ passwd\fR]
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[\c
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.BI \-z \ searchsize\fR]
|
||||
[\fIfilter\fR]
|
||||
.SH DESCRIPTION
|
||||
.B ldappasswd
|
||||
is a tool to modify the password of one or more LDAP entries.
|
||||
Multiple entries can be specified using a search filter.
|
||||
It is neither designed nor intended to be a replacement for
|
||||
.BR passwd (1)
|
||||
and should not be installed as such.
|
||||
.LP
|
||||
.B ldappasswd
|
||||
works by specifying a single target dn or by using a search filter.
|
||||
Matching entries will be modified with the new password.
|
||||
The new password will be hashed using
|
||||
.I crypt
|
||||
or any other supported hashing algorithm.
|
||||
For hashing algorithms other than
|
||||
.I crypt
|
||||
or
|
||||
.IR none ,
|
||||
the stored password will be base64 encoded.
|
||||
Salts are only generated for crypt and are based on the least
|
||||
significant bits of the current time and other psuedo randomness.
|
||||
.SH OPTIONS
|
||||
.TP
|
||||
.BI \-a \ passwdattribute
|
||||
Specify the LDAP attribute to change. The default is "userPassword".
|
||||
.TP
|
||||
.BI \-b \ searchbase
|
||||
Use \fIsearchbase\fP as the starting point for the search instead of
|
||||
the default.
|
||||
.TP
|
||||
.B \-c \fInone\fR\||\|\fIcrypt\fR\||\|\fImd5\fR\||\|\fIsha\fR
|
||||
Specify the hashing algorithm used to store the password. The default is
|
||||
.IR crypt .
|
||||
.TP
|
||||
.BI \-D \ binddn
|
||||
Use \fIbinddn\fP to bind to the X.500 directory. \fIbinddn\fP should be
|
||||
a string-represented DN as defined in RFC 1779.
|
||||
.TP
|
||||
.BI \-d \ debuglevel
|
||||
Set the LDAP debugging level to \fIdebuglevel\fP.
|
||||
.B ldappasswd
|
||||
must be compiled with LDAP_DEBUG defined for this option to have any effect.
|
||||
.TP
|
||||
.BI \-h \ ldaphost
|
||||
Specify an alternate host on which the ldap server is running.
|
||||
.TP
|
||||
.BI \-l \ searchtime
|
||||
Specify a maximum query time in seconds.
|
||||
.TP
|
||||
.B \-n
|
||||
Make no modifications. (Can be useful when used in conjunction with
|
||||
.BR \-v \ or
|
||||
.BR \-d )
|
||||
.TP
|
||||
.BI \-p \ ldapport
|
||||
Specify an alternate port on which the ldap server is running.
|
||||
.TP
|
||||
.BI \-s \ base\fR\||\|\fIone\fR\||\|\fIsub\fR
|
||||
Specify the scope of the search. The default is
|
||||
.IR base .
|
||||
.TP
|
||||
.B \-t \fR[\fItargetdn\fR]
|
||||
Specify the target dn to modify. If an argument is not given, the target dn will be the binddn.
|
||||
.TP
|
||||
.B \-v
|
||||
The more v's the more verbose.
|
||||
.TP
|
||||
.BI \-W \ newpasswd
|
||||
Specify the new password.
|
||||
.TP
|
||||
.BI \-w \ passwd
|
||||
Use \fIpasswd\fP as the password for simple authentication.
|
||||
.TP
|
||||
.BI \-z \ searchsize
|
||||
Specify a maximum query size.
|
||||
.SH AUTHOR
|
||||
David E. Storey <dave@tamos.net>
|
||||
.SH "SEE ALSO"
|
||||
.BR ldapadd (1),
|
||||
.BR ldapdelete (1),
|
||||
.BR ldapmodrdn (1),
|
||||
.BR ldapsearch (1)
|
||||
Loading…
Reference in a new issue