parser_dcf.h revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087 
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
21extern "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
54typedef 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 */
84int32_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__ */
92