The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef __PARSER_DCF_H__ |
| 18 | #define __PARSER_DCF_H__ |
| 19 | |
| 20 | #ifdef __cplusplus |
| 21 | extern "C" { |
| 22 | #endif |
| 23 | |
| 24 | #include <drm_common_types.h> |
| 25 | |
| 26 | #define MAX_ENCRYPTION_METHOD_LEN 64 |
| 27 | #define MAX_RIGHTS_ISSUER_LEN 256 |
| 28 | #define MAX_CONTENT_NAME_LEN 64 |
| 29 | #define MAX_CONTENT_DESCRIPTION_LEN 256 |
| 30 | #define MAX_CONTENT_VENDOR_LEN 256 |
| 31 | #define MAX_ICON_URI_LEN 256 |
| 32 | #define MAX_CONTENT_TYPE_LEN 64 |
| 33 | #define MAX_CONTENT_URI_LEN 256 |
| 34 | |
| 35 | #define HEADER_ENCRYPTION_METHOD "Encryption-Method: " |
| 36 | #define HEADER_RIGHTS_ISSUER "Rights-Issuer: " |
| 37 | #define HEADER_CONTENT_NAME "Content-Name: " |
| 38 | #define HEADER_CONTENT_DESCRIPTION "Content-Description: " |
| 39 | #define HEADER_CONTENT_VENDOR "Content-Vendor: " |
| 40 | #define HEADER_ICON_URI "Icon-Uri: " |
| 41 | |
| 42 | #define HEADER_ENCRYPTION_METHOD_LEN 19 |
| 43 | #define HEADER_RIGHTS_ISSUER_LEN 15 |
| 44 | #define HEADER_CONTENT_NAME_LEN 14 |
| 45 | #define HEADER_CONTENT_DESCRIPTION_LEN 21 |
| 46 | #define HEADER_CONTENT_VENDOR_LEN 16 |
| 47 | #define HEADER_ICON_URI_LEN 10 |
| 48 | |
| 49 | #define UINT_VAR_FLAG 0x80 |
| 50 | #define UINT_VAR_DATA 0x7F |
| 51 | #define MAX_UINT_VAR_BYTE 5 |
| 52 | #define DRM_UINT_VAR_ERR -1 |
| 53 | |
| 54 | typedef struct _T_DRM_DCF_Info { |
| 55 | uint8_t Version; |
| 56 | uint8_t ContentTypeLen; /**< Length of the ContentType field */ |
| 57 | uint8_t ContentURILen; /**< Length of the ContentURI field */ |
| 58 | uint8_t unUsed; |
| 59 | uint8_t ContentType[MAX_CONTENT_TYPE_LEN]; /**< The MIME media type of the plaintext data */ |
| 60 | uint8_t ContentURI[MAX_CONTENT_URI_LEN]; /**< The unique identifier of this content object */ |
| 61 | int32_t HeadersLen; /**< Length of the Headers field */ |
| 62 | int32_t EncryptedDataLen; /**< Length of the encrypted data field */ |
| 63 | int32_t DecryptedDataLen; /**< Length of the decrypted data field */ |
| 64 | uint8_t Encryption_Method[MAX_ENCRYPTION_METHOD_LEN]; /**< Encryption method */ |
| 65 | uint8_t Rights_Issuer[MAX_RIGHTS_ISSUER_LEN]; /**< Rights issuer */ |
| 66 | uint8_t Content_Name[MAX_CONTENT_NAME_LEN]; /**< Content name */ |
| 67 | uint8_t ContentDescription[MAX_CONTENT_DESCRIPTION_LEN]; /**< Content description */ |
| 68 | uint8_t ContentVendor[MAX_CONTENT_VENDOR_LEN]; /**< Content vendor */ |
| 69 | uint8_t Icon_URI[MAX_ICON_URI_LEN]; /**< Icon URI */ |
| 70 | } T_DRM_DCF_Info; |
| 71 | |
| 72 | /** |
| 73 | * Parse the DRM content format data |
| 74 | * |
| 75 | * \param buffer (in)Input the DCF format data |
| 76 | * \param bufferLen (in)The input buffer length |
| 77 | * \param pDcfInfo (out)A structure pointer which contain information of DCF headers |
| 78 | * \param ppEncryptedData (out)The location of encrypted data |
| 79 | * |
| 80 | * \return |
| 81 | * -TRUE, when success |
| 82 | * -FALSE, when failed |
| 83 | */ |
| 84 | int32_t drm_dcfParser(uint8_t *buffer, int32_t bufferLen, T_DRM_DCF_Info *pDcfInfo, |
| 85 | uint8_t **ppEncryptedData); |
| 86 | |
| 87 | #ifdef __cplusplus |
| 88 | } |
| 89 | #endif |
| 90 | |
| 91 | #endif /* __PARSER_DCF_H__ */ |