netwerk/sctp/src/netinet/sctp_sha1.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rwxr-xr-x

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /*-
     2  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
     3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
     4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
     5  *
     6  * Redistribution and use in source and binary forms, with or without
     7  * modification, are permitted provided that the following conditions are met:
     8  *
     9  * a) Redistributions of source code must retain the above copyright notice,
    10  *   this list of conditions and the following disclaimer.
    11  *
    12  * b) Redistributions in binary form must reproduce the above copyright
    13  *    notice, this list of conditions and the following disclaimer in
    14  *   the documentation and/or other materials provided with the distribution.
    15  *
    16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
    17  *    contributors may be used to endorse or promote products derived
    18  *    from this software without specific prior written permission.
    19  *
    20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
    30  * THE POSSIBILITY OF SUCH DAMAGE.
    31  */
    33 #ifdef __FreeBSD__
    34 #include <sys/cdefs.h>
    35 __FBSDID("$FreeBSD$");
    36 #endif
    39 #ifndef __NETINET_SCTP_SHA1_H__
    40 #define __NETINET_SCTP_SHA1_H__
    42 #include <sys/types.h>
    43 #if defined(SCTP_USE_NSS_SHA1)
    44 #if defined(__Userspace_os_Darwin)
    45 /* The NSS sources require __APPLE__ to be defined.
    46  * XXX: Remove this ugly hack once the platform defines have been cleaned up.
    47  */
    48 #define __APPLE__
    49 #endif
    50 #include <pk11pub.h>
    51 #if defined(__Userspace_os_Darwin)
    52 #undef __APPLE__
    53 #endif
    54 #elif defined(SCTP_USE_OPENSSL_SHA1)
    55 #include <openssl/sha.h>
    56 #endif
    58 struct sctp_sha1_context {
    59 #if defined(SCTP_USE_NSS_SHA1)
    60 	struct PK11Context *pk11_ctx;
    61 #elif defined(SCTP_USE_OPENSSL_SHA1)
    62 	SHA_CTX sha_ctx;
    63 #else
    64 	unsigned int A;
    65 	unsigned int B;
    66 	unsigned int C;
    67 	unsigned int D;
    68 	unsigned int E;
    69 	unsigned int H0;
    70 	unsigned int H1;
    71 	unsigned int H2;
    72 	unsigned int H3;
    73 	unsigned int H4;
    74 	unsigned int words[80];
    75 	unsigned int TEMP;
    76 	/* block I am collecting to process */
    77 	char sha_block[64];
    78 	/* collected so far */
    79 	int how_many_in_block;
    80 	unsigned int running_total;
    81 #endif
    82 };
    84 #if (defined(__APPLE__) && defined(KERNEL))
    85 #ifndef _KERNEL
    86 #define _KERNEL
    87 #endif
    88 #endif
    90 #if defined(_KERNEL) || defined(__Userspace__)
    92 void sctp_sha1_init(struct sctp_sha1_context *);
    93 void sctp_sha1_update(struct sctp_sha1_context *, const unsigned char *, unsigned int);
    94 void sctp_sha1_final(unsigned char *, struct sctp_sha1_context *);
    96 #endif
    97 #endif

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