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comparison: modules/libmar/src/mar_private.h
modules/libmar/src/mar_private.h
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| -1:000000000000 | 0:b66aed52b069 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef MAR_PRIVATE_H__ | |
| 8 #define MAR_PRIVATE_H__ | |
| 9 | |
| 10 #include "limits.h" | |
| 11 #include "mozilla/Assertions.h" | |
| 12 #include <stdint.h> | |
| 13 | |
| 14 #define BLOCKSIZE 4096 | |
| 15 #define ROUND_UP(n, incr) (((n) / (incr) + 1) * (incr)) | |
| 16 | |
| 17 #define MAR_ID "MAR1" | |
| 18 #define MAR_ID_SIZE 4 | |
| 19 | |
| 20 /* The signature block comes directly after the header block | |
| 21 which is 16 bytes */ | |
| 22 #define SIGNATURE_BLOCK_OFFSET 16 | |
| 23 | |
| 24 /* Make sure the file is less than 500MB. We do this to protect against | |
| 25 invalid MAR files. */ | |
| 26 #define MAX_SIZE_OF_MAR_FILE ((int64_t)524288000) | |
| 27 | |
| 28 /* Existing code makes assumptions that the file size is | |
| 29 smaller than LONG_MAX. */ | |
| 30 MOZ_STATIC_ASSERT(MAX_SIZE_OF_MAR_FILE < ((int64_t)LONG_MAX), | |
| 31 "max mar file size is too big"); | |
| 32 | |
| 33 /* We store at most the size up to the signature block + 4 | |
| 34 bytes per BLOCKSIZE bytes */ | |
| 35 MOZ_STATIC_ASSERT(sizeof(BLOCKSIZE) < \ | |
| 36 (SIGNATURE_BLOCK_OFFSET + sizeof(uint32_t)), | |
| 37 "BLOCKSIZE is too big"); | |
| 38 | |
| 39 /* The maximum size of any signature supported by current and future | |
| 40 implementations of the signmar program. */ | |
| 41 #define MAX_SIGNATURE_LENGTH 2048 | |
| 42 | |
| 43 /* Each additional block has a unique ID. | |
| 44 The product information block has an ID of 1. */ | |
| 45 #define PRODUCT_INFO_BLOCK_ID 1 | |
| 46 | |
| 47 #define MAR_ITEM_SIZE(namelen) (3*sizeof(uint32_t) + (namelen) + 1) | |
| 48 | |
| 49 /* Product Information Block (PIB) constants */ | |
| 50 #define PIB_MAX_MAR_CHANNEL_ID_SIZE 63 | |
| 51 #define PIB_MAX_PRODUCT_VERSION_SIZE 31 | |
| 52 | |
| 53 /* The mar program is compiled as a host bin so we don't have access to NSPR at | |
| 54 runtime. For that reason we use ntohl, htonl, and define HOST_TO_NETWORK64 | |
| 55 instead of the NSPR equivalents. */ | |
| 56 #ifdef XP_WIN | |
| 57 #include <winsock2.h> | |
| 58 #define ftello _ftelli64 | |
| 59 #define fseeko _fseeki64 | |
| 60 #else | |
| 61 #define _FILE_OFFSET_BITS 64 | |
| 62 #include <netinet/in.h> | |
| 63 #include <unistd.h> | |
| 64 #endif | |
| 65 | |
| 66 #include <stdio.h> | |
| 67 | |
| 68 #define HOST_TO_NETWORK64(x) ( \ | |
| 69 ((((uint64_t) x) & 0xFF) << 56) | \ | |
| 70 ((((uint64_t) x) >> 8) & 0xFF) << 48) | \ | |
| 71 (((((uint64_t) x) >> 16) & 0xFF) << 40) | \ | |
| 72 (((((uint64_t) x) >> 24) & 0xFF) << 32) | \ | |
| 73 (((((uint64_t) x) >> 32) & 0xFF) << 24) | \ | |
| 74 (((((uint64_t) x) >> 40) & 0xFF) << 16) | \ | |
| 75 (((((uint64_t) x) >> 48) & 0xFF) << 8) | \ | |
| 76 (((uint64_t) x) >> 56) | |
| 77 #define NETWORK_TO_HOST64 HOST_TO_NETWORK64 | |
| 78 | |
| 79 #endif /* MAR_PRIVATE_H__ */ |
