gecko/security/nss/lib/util/secplcy.h

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2008-06-06 05:40:11 -07:00
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1994-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __secplcy_h__
#define __secplcy_h__
#include "utilrename.h"
#include "prtypes.h"
/*
** Cipher policy enforcement. This code isn't very pretty, but it accomplishes
** the purpose of obscuring policy information from potential fortifiers. :-)
**
** The following routines are generic and intended for anywhere where cipher
** policy enforcement is to be done, e.g. SSL and PKCS7&12.
*/
#define SEC_CIPHER_NOT_ALLOWED 0
#define SEC_CIPHER_ALLOWED 1
#define SEC_CIPHER_RESTRICTED 2 /* cipher is allowed in limited cases
e.g. step-up */
/* The length of the header string for each cipher table.
(It's the same regardless of whether we're using md5 strings or not.) */
#define SEC_POLICY_HEADER_LENGTH 48
/* If we're testing policy stuff, we may want to use the plaintext version */
#define SEC_POLICY_USE_MD5_STRINGS 1
#define SEC_POLICY_THIS_IS_THE \
"\x2a\x3a\x51\xbf\x2f\x71\xb7\x73\xaa\xca\x6b\x57\x70\xcd\xc8\x9f"
#define SEC_POLICY_STRING_FOR_THE \
"\x97\x15\xe2\x70\xd2\x8a\xde\xa9\xe7\xa7\x6a\xe2\x83\xe5\xb1\xf6"
#define SEC_POLICY_SSL_TAIL \
"\x70\x16\x25\xc0\x2a\xb2\x4a\xca\xb6\x67\xb1\x89\x20\xdf\x87\xca"
#define SEC_POLICY_SMIME_TAIL \
"\xdf\xd4\xe7\x2a\xeb\xc4\x1b\xb5\xd8\xe5\xe0\x2a\x16\x9f\xc4\xb9"
#define SEC_POLICY_PKCS12_TAIL \
"\x1c\xf8\xa4\x85\x4a\xc6\x8a\xfe\xe6\xca\x03\x72\x50\x1c\xe2\xc8"
#if defined(SEC_POLICY_USE_MD5_STRINGS)
/* We're not testing.
Use md5 checksums of the strings. */
#define SEC_POLICY_SSL_HEADER \
SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_SSL_TAIL
#define SEC_POLICY_SMIME_HEADER \
SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_SMIME_TAIL
#define SEC_POLICY_PKCS12_HEADER \
SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_PKCS12_TAIL
#else
/* We're testing.
Use plaintext versions of the strings, for testing purposes. */
#define SEC_POLICY_SSL_HEADER \
"This is the string for the SSL policy table. "
#define SEC_POLICY_SMIME_HEADER \
"This is the string for the PKCS7 policy table. "
#define SEC_POLICY_PKCS12_HEADER \
"This is the string for the PKCS12 policy table. "
#endif
/* Local cipher tables have to have these members at the top. */
typedef struct _sec_cp_struct
{
char policy_string[SEC_POLICY_HEADER_LENGTH];
long unused; /* placeholder for max keybits in pkcs12 struct */
char num_ciphers;
char begin_ciphers;
/* cipher policy settings follow. each is a char. */
} secCPStruct;
struct SECCipherFindStr
{
/* (policy) and (ciphers) are opaque to the outside world */
void *policy;
void *ciphers;
long index;
PRBool onlyAllowed;
};
typedef struct SECCipherFindStr SECCipherFind;
SEC_BEGIN_PROTOS
SECCipherFind *sec_CipherFindInit(PRBool onlyAllowed,
secCPStruct *policy,
long *ciphers);
long sec_CipherFindNext(SECCipherFind *find);
char sec_IsCipherAllowed(long cipher, secCPStruct *policies,
long *ciphers);
void sec_CipherFindEnd(SECCipherFind *find);
SEC_END_PROTOS
#endif /* __SECPLCY_H__ */