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