From: Kurt Zeilenga <kurt@openldap.org>
Date: Wed, 20 Jan 1999 00:22:47 +0000 (+0000)
Subject: Import ldappasswd tool from devel.
X-Git-Tag: OPENLDAP_REL_ENG_1_2_BETA~42
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=49a35f4af5fdafde1bf1b73abc05d8aafc4dd047;p=thirdparty%2Fopenldap.git

Import ldappasswd tool from devel.
---

diff --git a/CHANGES b/CHANGES
index 0b7549afaf..a987e4c266 100644
--- a/CHANGES
+++ b/CHANGES
@@ -2,6 +2,7 @@ OpenLDAP Change Log
 
 Changes included in OpenLDAP 1.2
 	CVS Tag: OPENLDAP_REL_ENG_1_2
+	Add ldappasswd() tool
 
 Changes included in OpenLDAP 1.1.3
 	CVS Tag: OPENLDAP_REL_ENG_1_1_3
diff --git a/clients/tools/Makefile.in b/clients/tools/Makefile.in
index 069969a15b..e5a01c0365 100644
--- a/clients/tools/Makefile.in
+++ b/clients/tools/Makefile.in
@@ -1,8 +1,8 @@
 ##
 ## Makefile for LDAP tools
 ##
-SRCS	= ldapsearch.c ldapmodify.c ldapdelete.c ldapmodrdn.c
-OBJS	= ldapsearch.o ldapmodify.o ldapdelete.o ldapmodrdn.o
+SRCS	= ldapsearch.c ldapmodify.c ldapdelete.c ldapmodrdn.c ldappasswd.c
+OBJS	= ldapsearch.o ldapmodify.o ldapdelete.o ldapmodrdn.o ldappasswd.o
 
 LDAP_INCDIR= ../../include       
 LDAP_LIBDIR= ../../libraries
@@ -12,7 +12,7 @@ XXLIBS	= $(KRB_LIBS) $(LUTIL_LIBS)
 
 XSRCS	= ldsversion.c ldmversion.c lddversion.c ldrversion.c
 
-PROGRAMS = ldapsearch ldapmodify ldapdelete ldapmodrdn ldapadd
+PROGRAMS = ldapsearch ldapmodify ldapdelete ldapmodrdn ldapadd ldappasswd
 
 ldapsearch:	ldsversion.o
 	$(LTLINK) -o $@ ldapsearch.o ldsversion.o $(LIBS)
@@ -26,6 +26,9 @@ ldapdelete:	lddversion.o
 ldapmodrdn:	ldrversion.o
 	$(LTLINK) -o $@ ldapmodrdn.o ldrversion.o $(LIBS)
 
+ldappasswd:	ldappasswd.o
+	$(LTLINK) -o $@ ldappasswd.o $(LIBS)
+
 ldapadd:	ldapmodify
 	$(RM) $@
 	$(LN) ldapmodify ldapadd
@@ -68,5 +71,6 @@ install-local:	FORCE
 	$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldapmodify $(bindir)
 	$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldapdelete $(bindir)
 	$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldapmodrdn $(bindir)
+	$(LTINSTALL) $(INSTALLFLAGS) -m 755 ldappasswd $(bindir)
 	$(RM) $(bindir)/ldapadd
 	$(LN) $(bindir)/ldapmodify $(bindir)/ldapadd
diff --git a/clients/tools/ldappasswd.c b/clients/tools/ldappasswd.c
new file mode 100644
index 0000000000..03113bb3b7
--- /dev/null
+++ b/clients/tools/ldappasswd.c
@@ -0,0 +1,634 @@
+/*
+ *	Copyright 1998, David E. Storey, All rights reserved.
+ *	This software is not subject to any license of The Murphy Group, Inc.
+ *	or George Mason University.
+ *
+ *	Redistribution and use in source and binary forms are permitted only
+ *	as authorized by the OpenLDAP Public License.  A copy of this
+ *	license is available at http://www.OpenLDAP.org/license.html or
+ *	in file LICENSE in the top-level directory of the distribution.
+ *
+ *	ldappasswd.c - program to modify passwords in an LDAP tree
+ *
+ *	Author: David E. Storey <dave@tamos.net>
+ */
+
+#include "portable.h"
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+
+#include <ac/string.h>
+#include <ac/unistd.h>
+
+#include <lber.h>
+#include <ldap.h>
+#include <lutil.h>
+#include <lutil_md5.h>
+#include <lutil_sha1.h>
+
+#include "ldapconfig.h"
+
+/* local macros */
+#define CEILING(x)	((double)x > (int)x ? (int)x + 1 : (int)x)
+#define STRDUP(x)	(x ? strcpy(malloc(strlen(x) + 1), x) : NULL)
+
+#define LDAP_PASSWD_ATTRIB "userPassword"
+#define LDAP_PASSWD_CONF   DEFAULT_SYSCONFDIR"/passwd.conf"
+
+#define HS_NONE  0
+#define HS_PLAIN 1
+#define HS_CONV  2
+
+typedef enum
+{
+	HASHTYPE_NONE,
+	HASHTYPE_CRYPT,
+	HASHTYPE_MD5,
+	HASHTYPE_SMD5,
+	HASHTYPE_SHA1,
+	HASHTYPE_SSHA1
+}
+HashTypes;
+
+typedef struct salt_t
+{
+	unsigned char  *salt;
+	unsigned int    len;
+}
+Salt;
+
+typedef struct hash_t
+{
+	char           *name;
+	unsigned int    namesz;
+	char           *(*func) (const char *, Salt *);
+	unsigned char   takes_salt;
+	HashTypes       type;
+	HashTypes       type_salted;
+	unsigned int    default_salt_len;
+}
+Hash;
+
+static int	noupdates = 0;
+static int	verbose = 0;
+static int	want_entryhash = 0;
+static int	auto_gen_pw = 0;
+
+/*** functions ***/
+
+/*
+ * pw_encode() essentially base64 encodes a password and it's salt
+ */
+
+char *
+pw_encode (unsigned char *passwd, Salt * salt, unsigned int len)
+{
+	int		salted = salt && salt->salt && salt->len;
+	int		b64_len = 0;
+	char	       *base64digest = NULL;
+	unsigned char  *npasswd = passwd;
+
+	if (salted)
+	{
+		npasswd = (unsigned char *)malloc (len + salt->len);
+		memcpy (npasswd, passwd, len);
+		memcpy (&npasswd[len], salt->salt, salt->len);
+		len += salt->len;
+	}
+
+	b64_len = CEILING (len / 3) * 4 + 1;
+	base64digest = (char *)malloc (b64_len);
+	if (lutil_b64_ntop (npasswd, len, base64digest, b64_len) < 0)
+	{
+		free (base64digest);
+		base64digest = NULL;
+	}
+
+	if (salted)
+		free (npasswd);
+
+	return (base64digest);
+}
+
+/*
+ * if you'd like to write a better salt generator, please, be my guest.
+ */
+
+void
+make_salt (Salt * salt, unsigned int len)
+{
+	struct timeval  tv;
+
+	if (!salt)
+		return;
+
+	/* seed random number generator */
+	gettimeofday (&tv, NULL);
+	srand (tv.tv_usec);
+
+	salt->len = len;
+	salt->salt = (unsigned char *)malloc (len);
+
+	for (len = 0; len < salt->len; len++)
+		salt->salt[len] = (tv.tv_usec ^ rand ()) & 0xff;
+}
+
+/*
+ * password generator
+ */
+
+char *
+gen_pass (unsigned int len)
+{
+	const unsigned char autogen[] =
+		"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890.,";
+	int		i;
+	Salt		salt = {NULL, 0};
+
+	make_salt (&salt, len);
+	for (i = 0; i < len; i++)
+		salt.salt[i] = autogen[salt.salt[i] % (sizeof (autogen) - 1)];
+
+	return ((char *)salt.salt);
+}
+
+#ifdef SLAPD_CLEARTEXT
+char *
+hash_none (const char *pw_in, Salt * salt)
+{
+	return (STRDUP (pw_in));
+}
+#endif
+
+#ifdef SLAPD_CRYPT
+char *
+hash_crypt (const char *pw_in, Salt * salt)
+{
+	const unsigned char crypt64[] =
+		"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890./";
+	char   *crypted_pw = NULL;
+	Salt	lsalt;
+
+	if (salt && salt->salt && strlen ((char *)salt->salt) >= 2)
+	{
+		/* sanity check */
+		if (!(isalnum(salt->salt[0]) || salt->salt[0] == '.' || salt->salt[0] == '/'))
+			salt->salt[0] = crypt64[salt->salt[0] % (sizeof (crypt64) - 1)];
+		if (!(isalnum(salt->salt[1]) || salt->salt[1] == '.' || salt->salt[1] == '/'))
+			salt->salt[1] = crypt64[salt->salt[1] % (sizeof (crypt64) - 1)];
+
+		crypted_pw = crypt (pw_in, (char *)salt->salt);
+	}
+	else
+	{
+		make_salt (&lsalt, 2);
+		lsalt.salt[0] = crypt64[lsalt.salt[0] % (sizeof (crypt64) - 1)];
+		lsalt.salt[1] = crypt64[lsalt.salt[1] % (sizeof (crypt64) - 1)];
+		crypted_pw = crypt (pw_in, (char *)lsalt.salt);
+		free (lsalt.salt);
+	}
+	return (STRDUP (crypted_pw));
+}
+#endif
+
+char *
+hash_md5 (const char *pw_in, Salt * salt)
+{
+	lutil_MD5_CTX	MD5context;
+	unsigned char	MD5digest[16];
+
+	lutil_MD5Init (&MD5context);
+	lutil_MD5Update (&MD5context, pw_in, strlen(pw_in));
+	if (salt && salt->salt && salt->len)
+		lutil_MD5Update (&MD5context, salt->salt, salt->len);
+	lutil_MD5Final (MD5digest, &MD5context);
+
+	return (pw_encode (MD5digest, salt, sizeof (MD5digest)));
+}
+
+char *
+hash_sha1 (const char *pw_in, Salt * salt)
+{
+	lutil_SHA1_CTX	SHA1context;
+	unsigned char	SHA1digest[20];
+
+	lutil_SHA1Init (&SHA1context);
+	lutil_SHA1Update (&SHA1context, pw_in, strlen(pw_in));
+	if (salt && salt->salt && salt->len)
+		lutil_SHA1Update (&SHA1context, salt->salt, salt->len);
+	lutil_SHA1Final (SHA1digest, &SHA1context);
+
+	return (pw_encode (SHA1digest, salt, sizeof (SHA1digest)));
+}
+
+static Hash hashes[] =
+{
+#ifdef SLAPD_CLEARTEXT
+	{"none",  4, hash_none,  0, HASHTYPE_NONE,  HASHTYPE_NONE,  0},
+#endif
+#ifdef SLAPD_CRYPT
+	{"crypt", 5, hash_crypt, 1, HASHTYPE_CRYPT, HASHTYPE_CRYPT, 2},
+#endif
+	{"md5",   3, hash_md5,   0, HASHTYPE_MD5,   HASHTYPE_SMD5,  0},
+	{"smd5",  4, hash_md5,   1, HASHTYPE_SMD5,  HASHTYPE_SMD5,  4},
+	{"sha",   3, hash_sha1,  0, HASHTYPE_SHA1,  HASHTYPE_SSHA1, 0},
+	{"ssha",  4, hash_sha1,  1, HASHTYPE_SSHA1, HASHTYPE_SSHA1, 4},
+	{NULL,    0, NULL,       0, HASHTYPE_NONE,  HASHTYPE_NONE,  0}
+};
+
+int
+modify_dn (LDAP * ld, char *targetdn, char *pwattr, char *oldpw,
+	   char *newpw, HashTypes htype, Salt * salt)
+{
+	int		ret = 0;
+	int		salted = salt->salt ? 1 : 0;
+	int		want_salt = salt->len && !salted;
+	char	       *buf = NULL;
+	char	       *hashed_pw = NULL;
+	char	       *strvals[2];
+	LDAPMod		mod, *mods[2];
+
+	if (!ld || !targetdn || !newpw)
+		return (1);
+
+	/* auto-generate password */
+	if (auto_gen_pw)
+		newpw = gen_pass (auto_gen_pw);
+
+	/* handle salt */
+	if (want_salt)
+	{
+		make_salt (salt, salt->len);
+		htype = hashes[htype].type_salted;
+	}
+	else if (hashes[htype].default_salt_len)
+	{
+		/* user chose a salted hash and needs a salt */
+		if (!salted)
+		{
+			want_salt++;
+			salt->len = hashes[htype].default_salt_len;
+			make_salt (salt, salt->len);
+		}
+	}
+
+	/* hash password */
+	hashed_pw = hashes[htype].func (newpw, salt->len ? salt : NULL);
+
+	/* return salt back to it's original state */
+	if (want_salt)
+	{
+		free (salt->salt);
+		salt->salt = NULL;
+	}
+
+	buf = (char *)malloc (hashes[htype].namesz + 3 + strlen (hashed_pw));
+	if (htype)
+		sprintf (buf, "{%s}%s", hashes[htype].name, hashed_pw);
+	else
+		sprintf (buf, "%s", hashed_pw);
+
+	if (verbose > 0)
+	{
+		printf ("%s", targetdn);
+		if (verbose > 1)
+		{
+			printf (":%s", buf);
+			if (verbose > 2)
+				printf (":%s", newpw);
+		}
+		printf ("\n");
+	}
+
+	strvals[0] = buf;
+	strvals[1] = NULL;
+	mod.mod_vals.modv_strvals = strvals;
+	mod.mod_type = pwattr;
+	mod.mod_op = LDAP_MOD_REPLACE;
+	mods[0] = &mod;
+	mods[1] =NULL;
+
+	if (!noupdates && (ret = ldap_modify_s (ld, targetdn, mods)) != LDAP_SUCCESS)
+		ldap_perror (ld, "ldap_modify_s");
+
+	free (hashed_pw);
+	free (buf);
+	return (ret);
+}
+
+void
+usage (char *s)
+{
+	fprintf (stderr, "Usage: %s [options] [filter]\n", s);
+	fprintf (stderr, "  -a attrib\tpassword attribute (default: %s)\n", LDAP_PASSWD_ATTRIB);
+	fprintf (stderr, "  -b basedn\tbasedn to perform searches\n");
+/*      fprintf (stderr, "  -C\t\tuse entry's current hash mechanism\n"); */
+	fprintf (stderr, "  -D binddn\tbind dn\n");
+	fprintf (stderr, "  -d level\tdebugging level\n");
+	fprintf (stderr, "  -E\t\tprompt for new password\n");
+	fprintf (stderr, "  -e passwd\tnew password\n");
+	fprintf (stderr, "  -g passlen\tauto-generate passwords with length pwlen\n");
+	fprintf (stderr, "  -H hash\thash type (default: crypt)\n");
+	fprintf (stderr, "  -h host\tldap server (default: localhost)\n");
+#ifdef HAVE_KERBEROS
+	fprintf (stderr, "  -K\t\tuse Kerberos step 1\n");
+	fprintf (stderr, "  -k\t\tuse Kerberos\n");
+#endif
+	fprintf (stderr, "  -l time\ttime limit\n");
+	fprintf (stderr, "  -n\t\tmake no modifications\n");
+	fprintf (stderr, "  -P version\tprotocol version (2 or 3)\n");
+	fprintf (stderr, "  -p port\tldap port\n");
+	fprintf (stderr, "  -s scope\tsearch scope: base, one, sub (default: sub)\n");
+	fprintf (stderr, "  -t targetdn\tdn to change password\n");
+	fprintf (stderr, "  -v\t\tverbose (more v's, more verbose)\n");
+	fprintf (stderr, "  -W\t\tprompt for bind password\n");
+	fprintf (stderr, "  -w passwd\tbind password (for simple authentication)\n");
+	fprintf (stderr, "  -Y saltlen\tsalt length to use\n");
+/*      fprintf (stderr, "  -y salt\tsalt to use\n"); */
+	fprintf (stderr, "  -z size\tsize limit\n");
+	exit (1);
+}
+
+int
+main (int argc, char *argv[])
+{
+	char	       *base = NULL;
+	char	       *binddn = NULL;
+	char	       *bindpw = NULL;
+	char	       *filtpattern = NULL;
+	char	       *ldaphost = NULL;
+	char	       *targetdn = NULL;
+	char	       *pwattr = LDAP_PASSWD_ATTRIB;
+	char	       *newpw = NULL;
+	int		authmethod = LDAP_AUTH_SIMPLE;
+	int		hashtype = HASHTYPE_CRYPT;
+	int		i, j;
+	int		ldapport = 0;
+	int		debug = 0;
+	int		scope = LDAP_SCOPE_SUBTREE;
+	int		sizelimit = -1;
+	int		timelimit = -1;
+	int		version = -1;
+	int		want_bindpw = 0;
+	int		want_newpw = 0;
+	LDAP	       *ld;
+	Salt		salt;
+
+	salt.salt = NULL;
+	salt.len = 0;
+
+	if (argc == 1)
+		usage (argv[0]);
+
+	while ((i = getopt (argc, argv, "a:b:C:D:d:Ee:g:H:h:Kkl:nP:p:s:t:vWw:Y:y:z:")) != EOF)
+	{
+		switch (i)
+		{
+		case 'a':	/* password attribute */
+			pwattr = STRDUP (optarg);
+			break;
+
+		case 'b':	/* base search dn */
+			base = STRDUP (optarg);
+			break;
+
+		case 'C':
+			want_entryhash++;
+			break;
+
+		case 'D':	/* bind distinguished name */
+			binddn = STRDUP (optarg);
+			break;
+
+		case 'd':	/* debugging option */
+			debug |= atoi (optarg);
+			break;
+
+		case 'E':	/* prompt for new password */
+			want_newpw++;
+			break;
+
+		case 'e':	/* new password */
+			newpw = STRDUP (optarg);
+			break;
+
+		case 'g':
+			auto_gen_pw = strtol (optarg, NULL, 10);
+			break;
+
+		case 'H':	/* hashes */
+			for (j = 0; hashes[j].name; j++)
+			{
+				if (!strncasecmp (optarg, hashes[j].name, hashes[j].namesz))
+				{
+					hashtype = hashes[j].type;
+					break;
+				}
+			}
+
+			if (!hashes[j].name)
+			{
+				fprintf (stderr, "hash type: %s is unknown\n", optarg);
+				usage (argv[0]);
+			}
+			break;
+
+		case 'h':	/* ldap host */
+			ldaphost = STRDUP (optarg);
+			break;
+
+		case 'K':	/* use kerberos bind, 1st part only */
+#ifdef HAVE_KERBEROS
+			authmethod = LDAP_AUTH_KRBV41;
+#else
+			fprintf (stderr, "%s was not compiled with Kerberos support\n", argv[0]);
+#endif
+			break;
+
+		case 'k':	/* use kerberos bind */
+#ifdef HAVE_KERBEROS
+			authmethod = LDAP_AUTH_KRBV4;
+#else
+			fprintf (stderr, "%s was not compiled with Kerberos support\n", argv[0]);
+#endif
+			break;
+
+		case 'l':	/* time limit */
+			timelimit = strtol (optarg, NULL, 10);
+			break;
+
+		case 'n':	/* don't update entry(s) */
+			noupdates++;
+			break;
+
+		case 'P':
+			switch(optarg[0])
+			{
+			case '2':
+				version = LDAP_VERSION2;
+				break;
+			case '3':
+				version = LDAP_VERSION3;
+				break;
+			}
+			break;
+
+		case 'p':	/* ldap port */
+			ldapport = strtol (optarg, NULL, 10);
+			break;
+
+		case 's':	/* scope */
+			if (strncasecmp (optarg, "base", 4) == 0)
+				scope = LDAP_SCOPE_BASE;
+			else if (strncasecmp (optarg, "one", 3) == 0)
+				scope = LDAP_SCOPE_ONELEVEL;
+			else if (strncasecmp (optarg, "sub", 3) == 0)
+				scope = LDAP_SCOPE_SUBTREE;
+			else
+			{
+				fprintf (stderr, "scope should be base, one, or sub\n");
+				usage (argv[0]);
+			}
+			break;
+
+		case 't':	/* target dn */
+			targetdn = STRDUP (optarg);
+			break;
+
+		case 'v':	/* verbose */
+			verbose++;
+			break;
+
+		case 'W':	/* promt for bind password */
+			want_bindpw++;
+			break;
+
+		case 'w':	/* bind password */
+			bindpw = STRDUP (optarg);
+			break;
+
+		case 'Y':	/* salt length */
+			salt.len = strtol (optarg, NULL, 10);
+			break;
+
+		case 'y':	/* user specified salt */
+			salt.len = strlen (optarg);
+			salt.salt = (unsigned char *)STRDUP (optarg);
+			break;
+
+		case 'z':	/* time limit */
+			sizelimit = strtol (optarg, NULL, 10);
+			break;
+
+		default:
+			usage (argv[0]);
+		}
+	}
+
+	/* grab filter */
+	if (!(argc - optind < 1))
+		filtpattern = STRDUP (argv[optind]);
+
+	/* check for target(s) */
+	if (!filtpattern && !targetdn)
+		targetdn = binddn;
+
+	/* handle bind password */
+	if (want_bindpw)
+		bindpw = strdup (getpass ("Enter LDAP password: "));
+
+	/* handle new password */
+	if (!newpw)
+	{
+		char *cknewpw;
+		newpw = strdup (getpass ("New password: "));
+		cknewpw = getpass ("Re-enter new password: ");
+
+		if (strncmp (newpw, cknewpw, strlen (newpw)))
+		{
+			fprintf (stderr, "passwords do not match\n");
+			exit (1);
+		}
+	}
+
+	if ( debug ) {
+		lber_debug = ldap_debug = debug;
+	}
+
+	/* connect to server */
+	if ((ld = ldap_open (ldaphost, ldapport)) == NULL)
+	{
+		perror (ldaphost);
+		exit (1);
+	}
+
+	/* set options */
+	if( timelimit != -1 ) {
+		ld->ld_timelimit = timelimit;
+	}
+	if( sizelimit != -1 ) {
+		ld->ld_sizelimit = sizelimit;
+	}
+
+	/* this seems prudent */
+	ld->ld_deref = LDAP_DEREF_NEVER;
+
+	/* authenticate to server */
+	if (ldap_bind_s (ld, binddn, bindpw, authmethod) != LDAP_SUCCESS)
+	{
+		ldap_perror (ld, "ldap_bind");
+		exit (1);
+	}
+
+	if (targetdn)
+	{
+		if (want_entryhash)
+		{
+			/* insert code here =) */
+		}
+		else
+			modify_dn (ld, targetdn, pwattr, NULL, newpw, hashtype, &salt);
+	}
+
+	if (filtpattern)
+	{
+		char		filter[BUFSIZ];
+		LDAPMessage    *result = NULL, *e = NULL;
+		char	       *attrs[3] = {"dn", NULL, NULL};
+		attrs[1] = pwattr;
+
+		/* search */
+		sprintf (filter, "%s", filtpattern);
+		i = ldap_search_s (ld, base, scope, filter, attrs, 0, &result);
+		if (i != LDAP_SUCCESS &&
+		    i != LDAP_TIMELIMIT_EXCEEDED &&
+		    i != LDAP_SIZELIMIT_EXCEEDED)
+		{
+			ldap_perror (ld, "ldap_search_s");
+			exit (1);
+		}
+
+		for (e = ldap_first_entry (ld, result); e; e = ldap_next_entry (ld, e))
+		{
+			char *dn = ldap_get_dn (ld, e);
+			if (dn)
+			{
+				struct berval **pw_vals = ldap_get_values_len (ld, e, pwattr);
+				modify_dn (ld, dn, pwattr, pw_vals ? pw_vals[0]->bv_val : NULL, newpw, hashtype, &salt);
+				if (pw_vals)
+					ldap_value_free_len (pw_vals);
+				free (dn);
+			}
+		}
+	}
+
+	/* disconnect from server */
+	ldap_unbind (ld);
+	exit(0);
+
+	/* unreached */
+	return (0);
+}