--- /dev/null
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+/*
+ * lutil_authpassword(authpasswd, cred)
+ *
+ * Returns true if user supplied credentials (cred) matches
+ * the stored authentication password (authpasswd).
+ *
+ * Due to the use of the crypt(3) function
+ * this routine is NOT thread-safe.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/stdlib.h>
+#include <ac/string.h>
+
+#ifdef SLAPD_KPASSWD
+# include <ac/krb.h>
+# include <ac/krb5.h>
+#endif
+
+#include <ac/param.h>
+
+#include <ac/unistd.h>
+#include <ac/crypt.h>
+
+#ifdef HAVE_SHADOW_H
+# include <shadow.h>
+#endif
+#ifdef HAVE_PWD_H
+# include <pwd.h>
+#endif
+
+#include <lber.h>
+
+#include "lutil_md5.h"
+#include "lutil_sha1.h"
+#include "lutil.h"
+
+static const unsigned char crypt64[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890./";
+
+struct pw_scheme;
+
+typedef int (*PASSWD_CHK_FUNC)(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *salt,
+ const struct berval *cred );
+
+typedef int (*PASSWD_HASH_FUNC) (
+ const struct pw_scheme *scheme,
+ const struct berval *cred,
+ const struct berval *salt,
+ struct berval **passwd_out,
+ struct berval **salt_out );
+
+/* password check routines */
+static int chk_md5(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *salt,
+ const struct berval *cred );
+
+static int chk_sha1(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *salt,
+ const struct berval *cred );
+
+static int chk_crypt(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *salt,
+ const struct berval *cred );
+
+static int chk_ext(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *salt,
+ const struct berval *cred );
+
+static int chk_ext_kerberos(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *cred );
+
+static int chk_ext_unix(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd,
+ const struct berval *cred );
+
+
+/* password hash routines */
+static int *hash_sha1(
+ const struct pw_scheme *scheme,
+ const struct berval *cred,
+ const struct berval *salt,
+ struct berval **passwd_out,
+ struct berval **salt_out );
+
+static int *hash_md5(
+ const struct pw_scheme *scheme,
+ const struct berval *cred,
+ const struct berval *salt,
+ struct berval **passwd_out,
+ struct berval **salt_out );
+
+static int *hash_crypt(
+ const struct pw_scheme *scheme,
+ const struct berval *cred,
+ const struct berval *salt,
+ struct berval **passwd_out,
+ struct berval **salt_out );
+
+
+struct pw_scheme {
+ struct berval name;
+ PASSWD_CHK_FUNC chk_fn;
+ PASSWD_HASH_FUNC hash_fn;
+ int saltbytes;
+};
+
+static const struct pw_scheme pw_schemes[] =
+{
+ { {sizeof("SHA1")-1, "SHA1"}, chk_sha1, 0 /* hash_sha1 */, 4 },
+ { {sizeof("MD5")-1, "MD5"}, chk_md5, 0 /* hash_md5 */, 4 },
+
+#ifdef SLAPD_CRYPT
+ { {sizeof("CRYPT")-1, "CRYPT"}, chk_crypt, hash_crypt, 2 },
+#endif
+
+#ifdef EXT_PASSWD
+ { {sizeof("EXTERNAL")-1, "EXTERNAL"}, chk_ext, NULL, 0 },
+#endif
+
+ { {0, NULL}, NULL, NULL, 0 }
+};
+
+#ifdef EXT_PASSWD
+struct ext_scheme {
+ struct berval name;
+ EXT_CHK_FUNC chk_fn;
+};
+
+static const struct ext_scheme ext_schemes[] =
+{
+ { {0, NULL}, NULL, NULL, 0 }
+};
+#endif
+
+static const struct pw_scheme *get_scheme(
+ const char *scheme )
+{
+ int i;
+
+ if( scheme == NULL || *scheme == '\0' ) return NULL;
+
+ for( i=0; pw_schemes[i].name.bv_val; i++) {
+ if( pw_schemes[i].name.bv_len == 0 ) continue;
+
+ if( strncasecmp( scheme,
+ pw_schemes[i].name.bv_val,
+ pw_schemes[i].name.bv_len) == 0 )
+ {
+ return &pw_schemes[i];
+ }
+ }
+
+ return NULL;
+}
+
+int lutil_authpasswd_scheme(
+ const char *scheme )
+{
+ return get_scheme( scheme ) != NULL;
+}
+
+
+static int is_allowed_scheme(
+ const char* scheme,
+ const char** schemes )
+{
+ int i;
+
+ if( scheme == NULL || *scheme == '\0' ) return 1;
+
+ for( i=0; schemes[i] != NULL; i++ ) {
+ if( strcasecmp( scheme, schemes[i] ) == 0 ) {
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int parse_authpasswd(
+ char **scheme,
+ struct berval *salt,
+ struct berval *passwd )
+{
+ *scheme = NULL;
+ return -1;
+}
+
+/*
+ * Return 0 if creds are good.
+ */
+int
+lutil_authpasswd(
+ const struct berval *value, /* stored authpasswd */
+ const struct berval *cred, /* user cred */
+ const char **schemes )
+{
+ char *scheme;
+ struct berval salt, passwd;
+ const struct pw_scheme *pws;
+ int rc = -1;
+
+ if (cred == NULL || cred->bv_len == 0 ||
+ value == NULL || value->bv_len == 0 )
+ {
+ return -1;
+ }
+
+ rc = parse_authpasswd( &scheme, &salt, &passwd );
+
+ if( rc != 0 ) return -1;
+
+ if( !is_allowed_scheme( scheme, schemes ) ) {
+ goto done;
+ }
+
+ pws = get_scheme( scheme );
+
+ if( pws == NULL || !pws->chk_fn ) {
+ goto done;
+ };
+
+ rc = (pws->chk_fn)( pws, &salt, &passwd, cred );
+
+done:
+ if( scheme != NULL ) {
+ ber_memfree( scheme );
+ ber_memfree( salt.bv_val );
+ ber_memfree( passwd.bv_val );
+ }
+
+ return rc ? -1 : 0;
+}
+
+struct berval * lutil_authpasswd_generate( ber_len_t len )
+{
+ struct berval *pw;
+
+ if( len < 1 ) return NULL;
+
+ pw = ber_memalloc( sizeof( struct berval ) );
+ if( pw == NULL ) return NULL;
+
+ pw->bv_len = len;
+ pw->bv_val = ber_memalloc( len + 1 );
+
+ if( pw->bv_val == NULL ) {
+ ber_memfree( pw );
+ return NULL;
+ }
+
+ if( lutil_entropy( pw->bv_val, pw->bv_len) < 0 ) {
+ ber_bvfree( pw );
+ return NULL;
+ }
+
+ for( len = 0; len < pw->bv_len; len++ ) {
+ pw->bv_val[len] = crypt64[
+ pw->bv_val[len] % (sizeof(crypt64)-1) ];
+ }
+
+ pw->bv_val[len] = '\0';
+
+ return pw;
+}
+
+int lutil_authpasswd_hash(
+ const struct berval * cred,
+ struct berval ** passwd_out,
+ struct berval ** salt_out,
+ const char * method )
+{
+ const struct pw_scheme *sc;
+ int rc;
+
+ if( passwd_out == NULL ) return -1;
+
+ sc = get_scheme( method );
+ if( sc == NULL || !sc->hash_fn ) return -1;
+
+ if( sc->saltbytes && salt_out != NULL ) {
+ struct berval salt;
+ salt.bv_val = ber_memalloc( sc->saltbytes );
+
+ if( salt.bv_val == NULL ) {
+ return -1;
+ }
+ salt.bv_len = sc->saltbytes;
+
+ if( lutil_entropy( salt.bv_val, salt.bv_len ) < 0 ) {
+ ber_memfree( salt.bv_val );
+ return -1;
+ }
+
+ rc = (sc->hash_fn)( sc, cred, &salt, passwd_out, NULL );
+ ber_memfree( salt.bv_val );
+
+ } else if ( sc->saltbytes ) {
+ /* wants salt, disallow */
+ return -1;
+
+ } else {
+ rc = (sc->hash_fn)( sc, cred, NULL, passwd_out, salt_out );
+ }
+
+ return rc;
+}
+
+static struct berval * base64(
+ const struct berval *value )
+{
+ int rc;
+ struct berval *b64;
+
+ assert( value != NULL );
+
+ if( value == NULL || value->bv_len == 0 ) return NULL;
+
+ b64 = ber_memalloc( sizeof(struct berval) );
+ if( b64 == NULL ) return NULL;
+
+ b64->bv_len = LUTIL_BASE64_ENCODE_LEN( value->bv_len );
+ b64->bv_val = ber_memalloc( b64->bv_len + 1 );
+
+ if( b64->bv_val == NULL ) {
+ ber_memfree( b64 );
+ return NULL;
+ }
+
+ rc = lutil_b64_ntop(
+ value->bv_val, value->bv_len,
+ b64->bv_val, b64->bv_len );
+
+ b64->bv_val[b64->bv_len] = '\0';
+
+ if( rc < 0 ) {
+ ber_bvfree( b64 );
+ return NULL;
+ }
+
+ return b64;
+}
+
+/* PASSWORD CHECK ROUTINES */
+
+static int chk_sha1(
+ const struct pw_scheme *sc,
+ const struct berval * passwd,
+ const struct berval * salt,
+ const struct berval * cred )
+{
+ lutil_SHA1_CTX SHA1context;
+ unsigned char SHA1digest[LUTIL_SHA1_BYTES];
+ int rc;
+ unsigned char *orig_pass = NULL;
+ unsigned char *orig_salt = NULL;
+ int saltlen;
+
+ if( passwd == NULL || passwd->bv_len == 0 ) {
+ return 1;
+ }
+
+ /* decode base64 password */
+ orig_pass = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
+
+ if( orig_pass == NULL ) {
+ rc = -1;
+ goto done;
+ }
+
+ rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
+
+ if( rc < 0 ) {
+ goto done;
+ }
+
+ /* decode base64 salt */
+ if( salt != NULL && salt->bv_len > 0 ) {
+ orig_salt = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(salt->bv_len) + 1) );
+
+ if( orig_salt == NULL ) {
+ rc = -1;
+ goto done;
+ }
+
+ saltlen = lutil_b64_pton(passwd->bv_val, orig_salt, passwd->bv_len);
+
+ if( saltlen < 0 ) {
+ goto done;
+ }
+ }
+
+ /* hash credentials with salt */
+ lutil_SHA1Init(&SHA1context);
+ lutil_SHA1Update(&SHA1context,
+ (const unsigned char *) cred->bv_val, cred->bv_len);
+ if( orig_salt != NULL ) {
+ lutil_SHA1Update(&SHA1context,
+ orig_salt, saltlen );
+ }
+ lutil_SHA1Final(SHA1digest, &SHA1context);
+
+ /* compare */
+ rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
+
+done:
+ ber_memfree(orig_pass);
+ ber_memfree(orig_salt);
+ return rc;
+}
+
+static int chk_md5(
+ const struct pw_scheme *sc,
+ const struct berval * passwd,
+ const struct berval * salt,
+ const struct berval * cred )
+{
+ lutil_MD5_CTX MD5context;
+ unsigned char MD5digest[LUTIL_MD5_BYTES];
+ int rc;
+ unsigned char *orig_pass = NULL;
+ unsigned char *orig_salt = NULL;
+ int saltlen;
+
+ if( passwd == NULL || passwd->bv_len == 0 ) {
+ return 1;
+ }
+
+ /* decode base64 password */
+ orig_pass = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
+
+ if( orig_pass == NULL ) {
+ rc = -1;
+ goto done;
+ }
+
+ rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
+
+ if( rc < 0 ) {
+ goto done;
+ }
+
+ /* decode base64 salt */
+ if( salt != NULL && salt->bv_len > 0 ) {
+ orig_salt = (unsigned char *) ber_memalloc( (size_t) (
+ LUTIL_BASE64_DECODE_LEN(salt->bv_len) + 1) );
+
+ if( orig_salt == NULL ) {
+ rc = -1;
+ goto done;
+ }
+
+ saltlen = lutil_b64_pton(passwd->bv_val, orig_salt, passwd->bv_len);
+
+ if( saltlen < 0 ) {
+ goto done;
+ }
+ }
+
+ /* hash credentials with salt */
+ lutil_MD5Init(&MD5context);
+ lutil_MD5Update(&MD5context,
+ (const unsigned char *) cred->bv_val, cred->bv_len);
+ if( orig_salt != NULL ) {
+ lutil_MD5Update(&MD5context,
+ orig_salt, saltlen );
+ }
+ lutil_MD5Final(MD5digest, &MD5context);
+
+ /* compare */
+ rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
+
+done:
+ ber_memfree(orig_pass);
+ ber_memfree(orig_salt);
+ return rc;
+}
+
+#ifdef SLAPD_KPASSWD
+static int chk_kerberos(
+ const struct pw_scheme *sc,
+ const struct berval * passwd,
+ const struct berval * cred,
+ const struct berval * salt )
+{
+ int i;
+ int rtn;
+
+ for( i=0; i<cred->bv_len; i++) {
+ if(cred->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( cred->bv_val[i] != '\0' ) {
+ return 1; /* cred must behave like a string */
+ }
+
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return 1; /* passwd must behave like a string */
+ }
+
+ rtn = 1;
+
+#ifdef HAVE_KRB5 /* HAVE_HEIMDAL_KRB5 */
+ {
+/* Portions:
+ * Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H\xf6gskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+ krb5_context context;
+ krb5_error_code ret;
+ krb5_creds creds;
+ krb5_get_init_creds_opt get_options;
+ krb5_verify_init_creds_opt verify_options;
+ krb5_principal client, server;
+#ifdef notdef
+ krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP};
+#endif
+
+ ret = krb5_init_context( &context );
+ if (ret) {
+ return 1;
+ }
+
+#ifdef notdef
+ krb5_get_init_creds_opt_set_preauth_list(&get_options,
+ pre_auth_types, 1);
+#endif
+
+ krb5_get_init_creds_opt_init( &get_options );
+
+ krb5_verify_init_creds_opt_init( &verify_options );
+
+ ret = krb5_parse_name( context, passwd->bv_val, &client );
+
+ if (ret) {
+ krb5_free_context( context );
+ return 1;
+ }
+
+ ret = krb5_get_init_creds_password( context,
+ &creds, client, cred->bv_val, NULL,
+ NULL, 0, NULL, &get_options );
+
+ if (ret) {
+ krb5_free_principal( context, client );
+ krb5_free_context( context );
+ return 1;
+ }
+
+ {
+ char host[MAXHOSTNAMELEN];
+
+ if( gethostname( host, MAXHOSTNAMELEN ) != 0 ) {
+ krb5_free_principal( context, client );
+ krb5_free_context( context );
+ return 1;
+ }
+
+ ret = krb5_sname_to_principal( context,
+ host, "ldap", KRB5_NT_SRV_HST, &server );
+ }
+
+ if (ret) {
+ krb5_free_principal( context, client );
+ krb5_free_context( context );
+ return 1;
+ }
+
+ ret = krb5_verify_init_creds( context,
+ &creds, server, NULL, NULL, &verify_options );
+
+ krb5_free_principal( context, client );
+ krb5_free_principal( context, server );
+ krb5_free_creds_contents( context, &creds );
+ krb5_free_context( context );
+
+ rtn = !!ret;
+ }
+#elif defined(HAVE_KRB4)
+ {
+ /* Borrowed from Heimdal kpopper */
+/* Portions:
+ * Copyright (c) 1989 Regents of the University of California.
+ * All rights reserved. The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ */
+
+ int status;
+ char lrealm[REALM_SZ];
+ char tkt[MAXHOSTNAMELEN];
+
+ status = krb_get_lrealm(lrealm,1);
+ if (status == KFAILURE) {
+ return 1;
+ }
+
+ snprintf(tkt, sizeof(tkt), "%s_slapd.%u",
+ TKT_ROOT, (unsigned)getpid());
+ krb_set_tkt_string (tkt);
+
+ status = krb_verify_user( passwd->bv_val, "", lrealm,
+ cred->bv_val, 1, "ldap");
+
+ dest_tkt(); /* no point in keeping the tickets */
+
+ return status == KFAILURE;
+ }
+#endif
+
+ return rtn;
+}
+#endif /* SLAPD_KPASSWD */
+
+#ifdef SLAPD_CRYPT
+static int chk_crypt(
+ const struct pw_scheme *sc,
+ const struct berval * passwd,
+ const struct berval * cred )
+{
+ char *cr;
+ int i;
+
+ for( i=0; i<cred->bv_len; i++) {
+ if(cred->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( cred->bv_val[i] != '\0' ) {
+ return 1; /* cred must behave like a string */
+ }
+
+ if( passwd->bv_len < 2 ) {
+ return 1; /* passwd must be at least two characters long */
+ }
+
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return 1; /* passwd must behave like a string */
+ }
+
+ cr = crypt( cred->bv_val, passwd->bv_val );
+
+ if( cr == NULL || cr[0] == '\0' ) {
+ /* salt must have been invalid */
+ return 1;
+ }
+
+ return strcmp( passwd->bv_val, cr );
+}
+
+# if defined( HAVE_GETSPNAM ) \
+ || ( defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD ) )
+static int chk_unix(
+ const struct pw_scheme *sc,
+ const struct berval * passwd,
+ const struct berval * cred )
+{
+ int i;
+ char *pw,*cr;
+
+ for( i=0; i<cred->bv_len; i++) {
+ if(cred->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+ if( cred->bv_val[i] != '\0' ) {
+ return 1; /* cred must behave like a string */
+ }
+
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return 1; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return 1; /* passwd must behave like a string */
+ }
+
+# ifdef HAVE_GETSPNAM
+ {
+ struct spwd *spwd = getspnam(passwd->bv_val);
+
+ if(spwd == NULL) {
+ return 1; /* not found */
+ }
+
+ pw = spwd->sp_pwdp;
+ }
+
+# else
+ {
+ struct passwd *pwd = getpwnam(passwd->bv_val);
+
+ if(pwd == NULL) {
+ return 1; /* not found */
+ }
+
+ pw = pwd->pw_passwd;
+ }
+# endif
+
+ if( pw == NULL || pw[0] == '\0' || pw[1] == '\0' ) {
+ /* password must must be at least two characters long */
+ return 1;
+ }
+
+ cr = crypt(cred->bv_val, pw);
+
+ if( cr == NULL || cr[0] == '\0' ) {
+ /* salt must have been invalid */
+ return 1;
+ }
+
+ return strcmp(pw, cr);
+
+}
+# endif
+#endif
+
+/* PASSWORD GENERATION ROUTINES */
+
+#ifdef SLAPD_GENERATE
+
+static struct berval *hash_ssha1(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd )
+{
+ lutil_SHA1_CTX SHA1context;
+ unsigned char SHA1digest[LUTIL_SHA1_BYTES];
+ unsigned char saltdata[4];
+ struct berval digest;
+ struct berval salt;
+
+ digest.bv_val = SHA1digest;
+ digest.bv_len = sizeof(SHA1digest);
+ salt.bv_val = saltdata;
+ salt.bv_len = sizeof(saltdata);
+
+ if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
+ return NULL;
+ }
+
+ lutil_SHA1Init( &SHA1context );
+ lutil_SHA1Update( &SHA1context,
+ (const unsigned char *)passwd->bv_val, passwd->bv_len );
+ lutil_SHA1Update( &SHA1context,
+ (const unsigned char *)salt.bv_val, salt.bv_len );
+ lutil_SHA1Final( SHA1digest, &SHA1context );
+
+ return pw_string64( scheme, &digest, &salt);
+}
+
+static struct berval *hash_sha1(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd )
+{
+ lutil_SHA1_CTX SHA1context;
+ unsigned char SHA1digest[20];
+ struct berval digest;
+ digest.bv_val = SHA1digest;
+ digest.bv_len = sizeof(SHA1digest);
+
+ lutil_SHA1Init( &SHA1context );
+ lutil_SHA1Update( &SHA1context,
+ (const unsigned char *)passwd->bv_val, passwd->bv_len );
+ lutil_SHA1Final( SHA1digest, &SHA1context );
+
+ return pw_string64( scheme, &digest, NULL);
+}
+
+static struct berval *hash_smd5(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd )
+{
+ lutil_MD5_CTX MD5context;
+ unsigned char MD5digest[16];
+ unsigned char saltdata[4];
+ struct berval digest;
+ struct berval salt;
+
+ digest.bv_val = MD5digest;
+ digest.bv_len = sizeof(MD5digest);
+ salt.bv_val = saltdata;
+ salt.bv_len = sizeof(saltdata);
+
+ if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
+ return NULL;
+ }
+
+ lutil_MD5Init( &MD5context );
+ lutil_MD5Update( &MD5context,
+ (const unsigned char *) passwd->bv_val, passwd->bv_len );
+ lutil_MD5Update( &MD5context,
+ (const unsigned char *) salt.bv_val, salt.bv_len );
+ lutil_MD5Final( MD5digest, &MD5context );
+
+ return pw_string64( scheme, &digest, &salt );
+}
+
+static struct berval *hash_md5(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd )
+{
+ lutil_MD5_CTX MD5context;
+ unsigned char MD5digest[16];
+
+ struct berval digest;
+
+ digest.bv_val = MD5digest;
+ digest.bv_len = sizeof(MD5digest);
+
+ lutil_MD5Init( &MD5context );
+ lutil_MD5Update( &MD5context,
+ (const unsigned char *) passwd->bv_val, passwd->bv_len );
+ lutil_MD5Final( MD5digest, &MD5context );
+
+ return pw_string64( scheme, &digest, NULL );
+;
+}
+
+#ifdef SLAPD_CRYPT
+static struct berval *hash_crypt(
+ const struct pw_scheme *scheme,
+ const struct berval *passwd )
+{
+ struct berval hash;
+ unsigned char salt[3];
+ int i;
+
+ for( i=0; i<passwd->bv_len; i++) {
+ if(passwd->bv_val[i] == '\0') {
+ return NULL; /* NUL character in password */
+ }
+ }
+
+ if( passwd->bv_val[i] != '\0' ) {
+ return NULL; /* passwd must behave like a string */
+ }
+
+ if( lutil_entropy( salt, sizeof(salt)) < 0 ) {
+ return NULL;
+ }
+
+ salt[0] = crypt64[ salt[0] % (sizeof(crypt64)-1) ];
+ salt[1] = crypt64[ salt[1] % (sizeof(crypt64)-1) ];
+ salt[2] = '\0';
+
+ hash.bv_val = crypt( passwd->bv_val, salt );
+
+ if( hash.bv_val == NULL ) return NULL;
+
+ hash.bv_len = strlen( hash.bv_val );
+
+ if( hash.bv_len == 0 ) {
+ return NULL;
+ }
+
+ return pw_string( scheme, &hash );
+}
+#endif
+#endif
\ No newline at end of file
projects / openldap / commitdiff