1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/modules/libmar/src/mar_private.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,79 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef MAR_PRIVATE_H__
1.11 +#define MAR_PRIVATE_H__
1.12 +
1.13 +#include "limits.h"
1.14 +#include "mozilla/Assertions.h"
1.15 +#include <stdint.h>
1.16 +
1.17 +#define BLOCKSIZE 4096
1.18 +#define ROUND_UP(n, incr) (((n) / (incr) + 1) * (incr))
1.19 +
1.20 +#define MAR_ID "MAR1"
1.21 +#define MAR_ID_SIZE 4
1.22 +
1.23 +/* The signature block comes directly after the header block
1.24 + which is 16 bytes */
1.25 +#define SIGNATURE_BLOCK_OFFSET 16
1.26 +
1.27 +/* Make sure the file is less than 500MB. We do this to protect against
1.28 + invalid MAR files. */
1.29 +#define MAX_SIZE_OF_MAR_FILE ((int64_t)524288000)
1.30 +
1.31 +/* Existing code makes assumptions that the file size is
1.32 + smaller than LONG_MAX. */
1.33 +MOZ_STATIC_ASSERT(MAX_SIZE_OF_MAR_FILE < ((int64_t)LONG_MAX),
1.34 + "max mar file size is too big");
1.35 +
1.36 +/* We store at most the size up to the signature block + 4
1.37 + bytes per BLOCKSIZE bytes */
1.38 +MOZ_STATIC_ASSERT(sizeof(BLOCKSIZE) < \
1.39 + (SIGNATURE_BLOCK_OFFSET + sizeof(uint32_t)),
1.40 + "BLOCKSIZE is too big");
1.41 +
1.42 +/* The maximum size of any signature supported by current and future
1.43 + implementations of the signmar program. */
1.44 +#define MAX_SIGNATURE_LENGTH 2048
1.45 +
1.46 +/* Each additional block has a unique ID.
1.47 + The product information block has an ID of 1. */
1.48 +#define PRODUCT_INFO_BLOCK_ID 1
1.49 +
1.50 +#define MAR_ITEM_SIZE(namelen) (3*sizeof(uint32_t) + (namelen) + 1)
1.51 +
1.52 +/* Product Information Block (PIB) constants */
1.53 +#define PIB_MAX_MAR_CHANNEL_ID_SIZE 63
1.54 +#define PIB_MAX_PRODUCT_VERSION_SIZE 31
1.55 +
1.56 +/* The mar program is compiled as a host bin so we don't have access to NSPR at
1.57 + runtime. For that reason we use ntohl, htonl, and define HOST_TO_NETWORK64
1.58 + instead of the NSPR equivalents. */
1.59 +#ifdef XP_WIN
1.60 +#include <winsock2.h>
1.61 +#define ftello _ftelli64
1.62 +#define fseeko _fseeki64
1.63 +#else
1.64 +#define _FILE_OFFSET_BITS 64
1.65 +#include <netinet/in.h>
1.66 +#include <unistd.h>
1.67 +#endif
1.68 +
1.69 +#include <stdio.h>
1.70 +
1.71 +#define HOST_TO_NETWORK64(x) ( \
1.72 + ((((uint64_t) x) & 0xFF) << 56) | \
1.73 + ((((uint64_t) x) >> 8) & 0xFF) << 48) | \
1.74 + (((((uint64_t) x) >> 16) & 0xFF) << 40) | \
1.75 + (((((uint64_t) x) >> 24) & 0xFF) << 32) | \
1.76 + (((((uint64_t) x) >> 32) & 0xFF) << 24) | \
1.77 + (((((uint64_t) x) >> 40) & 0xFF) << 16) | \
1.78 + (((((uint64_t) x) >> 48) & 0xFF) << 8) | \
1.79 + (((uint64_t) x) >> 56)
1.80 +#define NETWORK_TO_HOST64 HOST_TO_NETWORK64
1.81 +
1.82 +#endif /* MAR_PRIVATE_H__ */
