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_DM_H__ 18 #define __PARSER_DM_H__ 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 #include <drm_common_types.h> 25 26 #define MAX_CONTENT_TYPE_LEN 64 27 #define MAX_CONTENT_ID 256 28 #define MAX_CONTENT_BOUNDARY_LEN 256 29 #define MAX_RIGHTS_ISSUER_LEN 256 30 31 #define DRM_MIME_TYPE_RIGHTS_XML "application/vnd.oma.drm.rights+xml" 32 #define DRM_MIME_TYPE_CONTENT "application/vnd.oma.drm.content" 33 34 #define HEADERS_TRANSFER_CODING "Content-Transfer-Encoding:" 35 #define HEADERS_CONTENT_TYPE "Content-Type:" 36 #define HEADERS_CONTENT_ID "Content-ID:" 37 38 #define TRANSFER_CODING_TYPE_7BIT "7bit" 39 #define TRANSFER_CODING_TYPE_8BIT "8bit" 40 #define TRANSFER_CODING_TYPE_BINARY "binary" 41 #define TRANSFER_CODING_TYPE_BASE64 "base64" 42 43 #define DRM_UID_TYPE_FORWORD_LOCK "forwardlock" 44 #define DRM_NEW_LINE_CRLF "\r\n" 45 46 #define HEADERS_TRANSFER_CODING_LEN 26 47 #define HEADERS_CONTENT_TYPE_LEN 13 48 #define HEADERS_CONTENT_ID_LEN 11 49 50 #define DRM_MESSAGE_CODING_7BIT 0 /* default */ 51 #define DRM_MESSAGE_CODING_8BIT 1 52 #define DRM_MESSAGE_CODING_BINARY 2 53 #define DRM_MESSAGE_CODING_BASE64 3 54 55 #define DRM_B64_DEC_BLOCK 3 56 #define DRM_B64_ENC_BLOCK 4 57 58 typedef struct _T_DRM_DM_Info { 59 uint8_t contentType[MAX_CONTENT_TYPE_LEN]; /**< Content type */ 60 uint8_t contentID[MAX_CONTENT_ID]; /**< Content ID */ 61 uint8_t boundary[MAX_CONTENT_BOUNDARY_LEN]; /**< DRM message's boundary */ 62 uint8_t deliveryType; /**< The Delivery type */ 63 uint8_t transferEncoding; /**< Transfer encoding type */ 64 int32_t contentOffset; /**< The offset of the media content from the original DRM data */ 65 int32_t contentLen; /**< The length of the media content */ 66 int32_t rightsOffset; /**< The offset of the rights object in case of combined delivery */ 67 int32_t rightsLen; /**< The length of the rights object in case of combined delivery */ 68 uint8_t rightsIssuer[MAX_RIGHTS_ISSUER_LEN];/**< The rights issuer address in case of separate delivery */ 69 } T_DRM_DM_Info; 70 71 /** 72 * Search the string in a limited length. 73 * 74 * \param str The original string 75 * \param strSearch The sub-string to be searched 76 * \param len The length limited 77 * 78 * \return 79 * -NULL, when there is not the searched string in length 80 * -The pointer of this sub-string 81 */ 82 const uint8_t* drm_strnstr(const uint8_t* str, const uint8_t* strSearch, int32_t len); 83 84 /** 85 * Parse the DRM message format data. 86 * 87 * \param buffer (in)Input the DRM message format data 88 * \param bufferLen (in)The input buffer length 89 * \param pDmInfo (out)A structure pointer which contain information of DRM message headers 90 * 91 * \return 92 * -TRUE, when success 93 * -FALSE, when failed 94 */ 95 int32_t drm_parseDM(const uint8_t* buffer, int32_t bufferLen, T_DRM_DM_Info* pDmInfo); 96 97 #ifdef __cplusplus 98 } 99 #endif 100 101 #endif /* __PARSER_DM_H__ */ 102