/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 1998-2005 The OpenLDAP Foundation.
+ * Copyright 1998-2012 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <ac/string.h>
#include <ac/unistd.h>
-#ifdef SLAPD_SPASSWD
-# ifdef HAVE_SASL_SASL_H
-# include <sasl/sasl.h>
-# else
-# include <sasl.h>
-# endif
-#endif
-
#if defined(SLAPD_LMHASH)
+#if defined(HAVE_OPENSSL)
# include <openssl/des.h>
+
+
+typedef des_cblock des_key;
+typedef des_cblock des_data_block;
+typedef des_key_schedule des_context;
+#define des_failed(encrypted) 0
+#define des_finish(key, schedule)
+
+#elif defined(HAVE_MOZNSS)
+/*
+ hack hack hack
+ We need to define this here so that nspr/obsolete/protypes.h will not be included
+ if that file is included, it will create a uint32 typedef that will cause the
+ one in lutil_sha1.h to blow up
+*/
+#define PROTYPES_H 1
+# include <nss/pk11pub.h>
+typedef PK11SymKey *des_key;
+typedef unsigned char des_data_block[8];
+typedef PK11Context *des_context[1];
+#define DES_ENCRYPT CKA_ENCRYPT
+
+#endif
+
#endif /* SLAPD_LMHASH */
#include <ac/param.h>
#ifdef SLAPD_CRYPT
# include <ac/crypt.h>
-# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
+# if defined( HAVE_GETPWNAM ) && defined( HAVE_STRUCT_PASSWD_PW_PASSWD )
# ifdef HAVE_SHADOW_H
# include <shadow.h>
# endif
#ifdef SLAPD_CRYPT
static char *salt_format = NULL;
+static lutil_cryptfunc lutil_crypt;
+lutil_cryptfunc *lutil_cryptptr = lutil_crypt;
#endif
+/* KLUDGE:
+ * chk_fn is NULL iff name is {CLEARTEXT}
+ * otherwise, things will break
+ */
struct pw_scheme {
struct berval name;
LUTIL_PASSWD_CHK_FUNC *chk_fn;
static LUTIL_PASSWD_HASH_FUNC hash_lanman;
#endif
-#ifdef SLAPD_SPASSWD
-static LUTIL_PASSWD_CHK_FUNC chk_sasl;
-#endif
-
#ifdef SLAPD_CRYPT
static LUTIL_PASSWD_CHK_FUNC chk_crypt;
static LUTIL_PASSWD_HASH_FUNC hash_crypt;
-#if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
+#if defined( HAVE_GETPWNAM ) && defined( HAVE_STRUCT_PASSWD_PW_PASSWD )
static LUTIL_PASSWD_CHK_FUNC chk_unix;
#endif
#endif
#endif
static struct pw_slist *pw_schemes;
+static int pw_inited;
static const struct pw_scheme pw_schemes_default[] =
{
{ BER_BVC("{LANMAN}"), chk_lanman, hash_lanman },
#endif /* SLAPD_LMHASH */
-#ifdef SLAPD_SPASSWD
- { BER_BVC("{SASL}"), chk_sasl, NULL },
-#endif
-
#ifdef SLAPD_CRYPT
{ BER_BVC("{CRYPT}"), chk_crypt, hash_crypt },
-# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
+# if defined( HAVE_GETPWNAM ) && defined( HAVE_STRUCT_PASSWD_PW_PASSWD )
{ BER_BVC("{UNIX}"), chk_unix, NULL },
# endif
#endif
#ifdef SLAPD_CLEARTEXT
/* pseudo scheme */
- { {0, "{CLEARTEXT}"}, NULL, hash_clear },
+ { BER_BVC("{CLEARTEXT}"), NULL, hash_clear },
#endif
{ BER_BVNULL, NULL, NULL }
{
struct pw_slist *ptr;
+ if (!pw_inited) lutil_passwd_init();
+
ptr = ber_memalloc( sizeof( struct pw_slist ));
if (!ptr) return -1;
ptr->next = pw_schemes;
{
struct pw_scheme *s;
+ pw_inited = 1;
+
for( s=(struct pw_scheme *)pw_schemes_default; s->name.bv_val; s++) {
if ( lutil_passwd_add( &s->name, s->chk_fn, s->hash_fn ) ) break;
}
const char* scheme )
{
struct pw_slist *pws;
+ struct berval bv;
+
+ if (!pw_inited) lutil_passwd_init();
+
+ bv.bv_val = strchr( scheme, '}' );
+ if ( !bv.bv_val )
+ return NULL;
- if (!pw_schemes) lutil_passwd_init();
+ bv.bv_len = bv.bv_val - scheme + 1;
+ bv.bv_val = (char *) scheme;
for( pws=pw_schemes; pws; pws=pws->next ) {
- if( strcasecmp(scheme, pws->s.name.bv_val ) == 0 ) {
+ if ( ber_bvstrcasecmp(&bv, &pws->s.name ) == 0 ) {
return &(pws->s);
}
}
return -1;
}
- if (!pw_schemes) lutil_passwd_init();
+ if (!pw_inited) lutil_passwd_init();
for( pws=pw_schemes; pws; pws=pws->next ) {
if( pws->s.chk_fn ) {
}
#ifdef SLAPD_CLEARTEXT
+ /* Do we think there is a scheme specifier here that we
+ * didn't recognize? Assume a scheme name is at least 1 character.
+ */
+ if (( passwd->bv_val[0] == '{' ) &&
+ ( ber_bvchr( passwd, '}' ) > passwd->bv_val+1 ))
+ {
+ return 1;
+ }
if( is_allowed_scheme("{CLEARTEXT}", schemes ) ) {
- return (( passwd->bv_len == cred->bv_len ) &&
- ( passwd->bv_val[0] != '{' /*'}'*/ ))
- ? memcmp( passwd->bv_val, cred->bv_val, passwd->bv_len )
+ return ( passwd->bv_len == cred->bv_len ) ?
+ memcmp( passwd->bv_val, cred->bv_val, passwd->bv_len )
: 1;
}
#endif
}
#endif /* SLAPD_LMHASH || SLAPD_CRYPT */
-static int pw_string64(
+int lutil_passwd_string64(
const struct berval *sc,
const struct berval *hash,
struct berval *b64,
}
#ifdef SLAPD_LMHASH
+
+#if defined(HAVE_OPENSSL)
+
+/*
+ * abstract away setting the parity.
+ */
+static void
+des_set_key_and_parity( des_key *key, unsigned char *keyData)
+{
+ memcpy(key, keyData, 8);
+ des_set_odd_parity( key );
+}
+
+
+#elif defined(HAVE_MOZNSS)
+
+/*
+ * implement MozNSS wrappers for the openSSL calls
+ */
+static void
+des_set_key_and_parity( des_key *key, unsigned char *keyData)
+{
+ SECItem keyDataItem;
+ PK11SlotInfo *slot;
+ *key = NULL;
+
+ keyDataItem.data = keyData;
+ keyDataItem.len = 8;
+
+ slot = PK11_GetBestSlot(CKM_DES_ECB, NULL);
+ if (slot == NULL) {
+ return;
+ }
+
+ /* NOTE: this will not work in FIPS mode. In order to make lmhash
+ * work in fips mode we need to define a LMHASH pbe mechanism and
+ * do the fulll key derivation inside the token */
+ *key = PK11_ImportSymKey(slot, CKM_DES_ECB, PK11_OriginGenerated,
+ CKA_ENCRYPT, &keyDataItem, NULL);
+}
+
+static void
+des_set_key_unchecked( des_key *key, des_context ctxt )
+{
+ ctxt[0] = NULL;
+
+ /* handle error conditions from previous call */
+ if (!*key) {
+ return;
+ }
+
+ ctxt[0] = PK11_CreateContextBySymKey(CKM_DES_ECB, CKA_ENCRYPT, *key, NULL);
+}
+
+static void
+des_ecb_encrypt( des_data_block *plain, des_data_block *encrypted,
+ des_context ctxt, int op)
+{
+ SECStatus rv;
+ int size;
+
+ if (ctxt[0] == NULL) {
+ /* need to fail here... */
+ memset(encrypted, 0, sizeof(des_data_block));
+ return;
+ }
+ rv = PK11_CipherOp(ctxt[0], (unsigned char *)&encrypted[0],
+ &size, sizeof(des_data_block),
+ (unsigned char *)&plain[0], sizeof(des_data_block));
+ if (rv != SECSuccess) {
+ /* signal failure */
+ memset(encrypted, 0, sizeof(des_data_block));
+ return;
+ }
+ return;
+}
+
+static int
+des_failed(des_data_block *encrypted)
+{
+ static const des_data_block zero = { 0 };
+ return memcmp(encrypted, zero, sizeof(zero)) == 0;
+}
+
+static void
+des_finish(des_key *key, des_context ctxt)
+{
+ if (*key) {
+ PK11_FreeSymKey(*key);
+ *key = NULL;
+ }
+ if (ctxt[0]) {
+ PK11_Finalize(ctxt[0]);
+ PK11_DestroyContext(ctxt[0], PR_TRUE);
+ ctxt[0] = NULL;
+ }
+}
+
+#endif
+
/* pseudocode from RFC2433
* A.2 LmPasswordHash()
*
*/
static void lmPasswd_to_key(
- const unsigned char *lmPasswd,
- des_cblock *key)
+ const char *lmPasswd,
+ des_key *key)
{
+ const unsigned char *lpw = (const unsigned char *) lmPasswd;
+ unsigned char k[8];
+
/* make room for parity bits */
- ((char *)key)[0] = lmPasswd[0];
- ((char *)key)[1] = ((lmPasswd[0]&0x01)<<7) | (lmPasswd[1]>>1);
- ((char *)key)[2] = ((lmPasswd[1]&0x03)<<6) | (lmPasswd[2]>>2);
- ((char *)key)[3] = ((lmPasswd[2]&0x07)<<5) | (lmPasswd[3]>>3);
- ((char *)key)[4] = ((lmPasswd[3]&0x0F)<<4) | (lmPasswd[4]>>4);
- ((char *)key)[5] = ((lmPasswd[4]&0x1F)<<3) | (lmPasswd[5]>>5);
- ((char *)key)[6] = ((lmPasswd[5]&0x3F)<<2) | (lmPasswd[6]>>6);
- ((char *)key)[7] = ((lmPasswd[6]&0x7F)<<1);
+ k[0] = lpw[0];
+ k[1] = ((lpw[0] & 0x01) << 7) | (lpw[1] >> 1);
+ k[2] = ((lpw[1] & 0x03) << 6) | (lpw[2] >> 2);
+ k[3] = ((lpw[2] & 0x07) << 5) | (lpw[3] >> 3);
+ k[4] = ((lpw[3] & 0x0F) << 4) | (lpw[4] >> 4);
+ k[5] = ((lpw[4] & 0x1F) << 3) | (lpw[5] >> 5);
+ k[6] = ((lpw[5] & 0x3F) << 2) | (lpw[6] >> 6);
+ k[7] = ((lpw[6] & 0x7F) << 1);
- des_set_odd_parity( key );
+ des_set_key_and_parity( key, k );
}
static int chk_lanman(
const struct berval *cred,
const char **text )
{
- int i;
+ ber_len_t i;
char UcasePassword[15];
- des_cblock key;
- des_key_schedule schedule;
- des_cblock StdText = "KGS!@#$%";
- des_cblock PasswordHash1, PasswordHash2;
+ des_key key;
+ des_context schedule;
+ des_data_block StdText = "KGS!@#$%";
+ des_data_block PasswordHash1, PasswordHash2;
char PasswordHash[33], storedPasswordHash[33];
for( i=0; i<cred->bv_len; i++) {
lmPasswd_to_key( UcasePassword, &key );
des_set_key_unchecked( &key, schedule );
des_ecb_encrypt( &StdText, &PasswordHash1, schedule , DES_ENCRYPT );
+
+ if (des_failed(&PasswordHash1)) {
+ return LUTIL_PASSWD_ERR;
+ }
lmPasswd_to_key( &UcasePassword[7], &key );
des_set_key_unchecked( &key, schedule );
des_ecb_encrypt( &StdText, &PasswordHash2, schedule , DES_ENCRYPT );
+ if (des_failed(&PasswordHash2)) {
+ return LUTIL_PASSWD_ERR;
+ }
+
+ des_finish( &key, schedule );
sprintf( PasswordHash, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
PasswordHash1[0],PasswordHash1[1],PasswordHash1[2],PasswordHash1[3],
}
#endif /* SLAPD_LMHASH */
-#ifdef SLAPD_SPASSWD
-#ifdef HAVE_CYRUS_SASL
-sasl_conn_t *lutil_passwd_sasl_conn = NULL;
-#endif
-
-static int chk_sasl(
- const struct berval *sc,
- const struct berval * passwd,
- const struct berval * cred,
- const char **text )
+#ifdef SLAPD_CRYPT
+static int lutil_crypt(
+ const char *key,
+ const char *salt,
+ char **hash )
{
- unsigned int i;
- int rtn;
-
- for( i=0; i<cred->bv_len; i++) {
- if(cred->bv_val[i] == '\0') {
- return LUTIL_PASSWD_ERR; /* NUL character in password */
- }
- }
-
- if( cred->bv_val[i] != '\0' ) {
- return LUTIL_PASSWD_ERR; /* cred must behave like a string */
- }
+ char *cr = crypt( key, salt );
+ int rc;
- for( i=0; i<passwd->bv_len; i++) {
- if(passwd->bv_val[i] == '\0') {
- return LUTIL_PASSWD_ERR; /* NUL character in password */
+ if( cr == NULL || cr[0] == '\0' ) {
+ /* salt must have been invalid */
+ rc = LUTIL_PASSWD_ERR;
+ } else {
+ if ( hash ) {
+ *hash = ber_strdup( cr );
+ rc = LUTIL_PASSWD_OK;
+ } else {
+ rc = strcmp( salt, cr ) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
}
}
-
- if( passwd->bv_val[i] != '\0' ) {
- return LUTIL_PASSWD_ERR; /* passwd must behave like a string */
- }
-
- rtn = LUTIL_PASSWD_ERR;
-
-#ifdef HAVE_CYRUS_SASL
- if( lutil_passwd_sasl_conn != NULL ) {
- int sc;
-# if SASL_VERSION_MAJOR < 2
- sc = sasl_checkpass( lutil_passwd_sasl_conn,
- passwd->bv_val, passwd->bv_len,
- cred->bv_val, cred->bv_len,
- text );
-# else
- sc = sasl_checkpass( lutil_passwd_sasl_conn,
- passwd->bv_val, passwd->bv_len,
- cred->bv_val, cred->bv_len );
-# endif
- rtn = ( sc != SASL_OK ) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
- }
-#endif
-
- return rtn;
+ return rc;
}
-#endif
-#ifdef SLAPD_CRYPT
static int chk_crypt(
const struct berval *sc,
const struct berval * passwd,
const struct berval * cred,
const char **text )
{
- char *cr;
unsigned int i;
for( i=0; i<cred->bv_len; i++) {
return LUTIL_PASSWD_ERR; /* 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 LUTIL_PASSWD_ERR;
- }
-
- return strcmp( passwd->bv_val, cr ) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
+ return lutil_cryptptr( cred->bv_val, passwd->bv_val, NULL );
}
-# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
+# if defined( HAVE_GETPWNAM ) && defined( HAVE_STRUCT_PASSWD_PW_PASSWD )
static int chk_unix(
const struct berval *sc,
const struct berval * passwd,
const char **text )
{
unsigned int i;
- char *pw,*cr;
+ char *pw;
for( i=0; i<cred->bv_len; i++) {
if(cred->bv_val[i] == '\0') {
return LUTIL_PASSWD_ERR;
}
- cr = crypt(cred->bv_val, pw);
-
- if( cr == NULL || cr[0] == '\0' ) {
- /* salt must have been invalid */
- return LUTIL_PASSWD_ERR;
- }
-
- return strcmp(pw, cr) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
-
+ return lutil_cryptptr( cred->bv_val, pw, NULL );
}
# endif
#endif
(const unsigned char *)salt.bv_val, salt.bv_len );
lutil_SHA1Final( SHA1digest, &SHA1context );
- return pw_string64( scheme, &digest, hash, &salt);
+ return lutil_passwd_string64( scheme, &digest, hash, &salt);
}
static int hash_sha1(
(const unsigned char *)passwd->bv_val, passwd->bv_len );
lutil_SHA1Final( SHA1digest, &SHA1context );
- return pw_string64( scheme, &digest, hash, NULL);
+ return lutil_passwd_string64( scheme, &digest, hash, NULL);
}
#endif
(const unsigned char *) salt.bv_val, salt.bv_len );
lutil_MD5Final( MD5digest, &MD5context );
- return pw_string64( scheme, &digest, hash, &salt );
+ return lutil_passwd_string64( scheme, &digest, hash, &salt );
}
static int hash_md5(
(const unsigned char *) passwd->bv_val, passwd->bv_len );
lutil_MD5Final( MD5digest, &MD5context );
- return pw_string64( scheme, &digest, hash, NULL );
+ return lutil_passwd_string64( scheme, &digest, hash, NULL );
;
}
const char **text )
{
- int i;
+ ber_len_t i;
char UcasePassword[15];
- des_cblock key;
- des_key_schedule schedule;
- des_cblock StdText = "KGS!@#$%";
- des_cblock PasswordHash1, PasswordHash2;
+ des_key key;
+ des_context schedule;
+ des_data_block StdText = "KGS!@#$%";
+ des_data_block PasswordHash1, PasswordHash2;
char PasswordHash[33];
for( i=0; i<passwd->bv_len; i++) {
{
unsigned char salt[32]; /* salt suitable for most anything */
unsigned int i;
+ char *save;
+ int rc;
for( i=0; i<passwd->bv_len; i++) {
if(passwd->bv_val[i] == '\0') {
snprintf( (char *) salt, sizeof(entropy), salt_format, entropy );
}
- hash->bv_val = crypt( passwd->bv_val, (char *) salt );
+ rc = lutil_cryptptr( passwd->bv_val, (char *) salt, &hash->bv_val );
+ if ( rc != LUTIL_PASSWD_OK ) return rc;
if( hash->bv_val == NULL ) return -1;
hash->bv_len = strlen( hash->bv_val );
+ save = hash->bv_val;
+
if( hash->bv_len == 0 ) {
- return LUTIL_PASSWD_ERR;
+ rc = LUTIL_PASSWD_ERR;
+ } else {
+ rc = pw_string( scheme, hash );
}
-
- return pw_string( scheme, hash );
+ ber_memfree( save );
+ return rc;
}
#endif
int lutil_salt_format(const char *format)
{
#ifdef SLAPD_CRYPT
- free( salt_format );
+ ber_memfree( salt_format );
- salt_format = format != NULL ? strdup( format ) : NULL;
+ salt_format = format != NULL ? ber_strdup( format ) : NULL;
#endif
return 0;