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.

michael@0 1 /*-
michael@0 2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
michael@0 3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
michael@0 4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
michael@0 5 *
michael@0 6 * Redistribution and use in source and binary forms, with or without
michael@0 7 * modification, are permitted provided that the following conditions are met:
michael@0 8 *
michael@0 9 * a) Redistributions of source code must retain the above copyright notice,
michael@0 10 * this list of conditions and the following disclaimer.
michael@0 11 *
michael@0 12 * b) Redistributions in binary form must reproduce the above copyright
michael@0 13 * notice, this list of conditions and the following disclaimer in
michael@0 14 * the documentation and/or other materials provided with the distribution.
michael@0 15 *
michael@0 16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
michael@0 17 * contributors may be used to endorse or promote products derived
michael@0 18 * from this software without specific prior written permission.
michael@0 19 *
michael@0 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
michael@0 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
michael@0 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
michael@0 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
michael@0 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
michael@0 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
michael@0 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
michael@0 30 * THE POSSIBILITY OF SUCH DAMAGE.
michael@0 31 */
michael@0 32
michael@0 33 #ifdef __FreeBSD__
michael@0 34 #include <sys/cdefs.h>
michael@0 35 __FBSDID("$FreeBSD$");
michael@0 36 #endif
michael@0 37
michael@0 38
michael@0 39 #ifndef __NETINET_SCTP_SHA1_H__
michael@0 40 #define __NETINET_SCTP_SHA1_H__
michael@0 41
michael@0 42 #include <sys/types.h>
michael@0 43 #if defined(SCTP_USE_NSS_SHA1)
michael@0 44 #if defined(__Userspace_os_Darwin)
michael@0 45 /* The NSS sources require __APPLE__ to be defined.
michael@0 46 * XXX: Remove this ugly hack once the platform defines have been cleaned up.
michael@0 47 */
michael@0 48 #define __APPLE__
michael@0 49 #endif
michael@0 50 #include <pk11pub.h>
michael@0 51 #if defined(__Userspace_os_Darwin)
michael@0 52 #undef __APPLE__
michael@0 53 #endif
michael@0 54 #elif defined(SCTP_USE_OPENSSL_SHA1)
michael@0 55 #include <openssl/sha.h>
michael@0 56 #endif
michael@0 57
michael@0 58 struct sctp_sha1_context {
michael@0 59 #if defined(SCTP_USE_NSS_SHA1)
michael@0 60 struct PK11Context *pk11_ctx;
michael@0 61 #elif defined(SCTP_USE_OPENSSL_SHA1)
michael@0 62 SHA_CTX sha_ctx;
michael@0 63 #else
michael@0 64 unsigned int A;
michael@0 65 unsigned int B;
michael@0 66 unsigned int C;
michael@0 67 unsigned int D;
michael@0 68 unsigned int E;
michael@0 69 unsigned int H0;
michael@0 70 unsigned int H1;
michael@0 71 unsigned int H2;
michael@0 72 unsigned int H3;
michael@0 73 unsigned int H4;
michael@0 74 unsigned int words[80];
michael@0 75 unsigned int TEMP;
michael@0 76 /* block I am collecting to process */
michael@0 77 char sha_block[64];
michael@0 78 /* collected so far */
michael@0 79 int how_many_in_block;
michael@0 80 unsigned int running_total;
michael@0 81 #endif
michael@0 82 };
michael@0 83
michael@0 84 #if (defined(__APPLE__) && defined(KERNEL))
michael@0 85 #ifndef _KERNEL
michael@0 86 #define _KERNEL
michael@0 87 #endif
michael@0 88 #endif
michael@0 89
michael@0 90 #if defined(_KERNEL) || defined(__Userspace__)
michael@0 91
michael@0 92 void sctp_sha1_init(struct sctp_sha1_context *);
michael@0 93 void sctp_sha1_update(struct sctp_sha1_context *, const unsigned char *, unsigned int);
michael@0 94 void sctp_sha1_final(unsigned char *, struct sctp_sha1_context *);
michael@0 95
michael@0 96 #endif
michael@0 97 #endif

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