u-boot/include/tpLinuxTag.h

   1
   2 /**************************************************************************************
   3 * File Name  : tpLinuxTag.h
   4 *
   5 * Description: add tag with validation system to the firmware image file to be uploaded
   6 *              via http
   7 *
   8 * Created    : 16Sep07, Liang Qiming
   9 **************************************************************************************/
  10
  11 #ifndef _TP_LINUX_TAG_H_
  12 #define _TP_LINUX_TAG_H_
  13
  14 /*
  15  * File tag (head) structure all is in clear text
  16  * except validationTokens (crc, md5, sha1, etc).
  17  *
  18  * Total: 128 unsigned chars
  19  */
  20 #define TAG_LEN                 512
  21 #define SIG_LEN                 24
  22 #define SIG_LEN_2               12 // Original second SIG = 20 is now devided into 14 for SIG_LEN_2 and 6 for CHIP_ID
  23 #define CHIP_ID_LEN             8
  24 #define TOKEN_LEN               20
  25 #define BOARD_ID_LEN    16
  26
  27 /*
  28  * TAG for downloadable image (kernel plus file system)
  29  * integer in the structure is stored in Network-Byte order (BIG-endian)
  30  */
  31 typedef struct _tplink_image_header_t {
  32         unsigned long   tagVersion;
  33     char                        signiture_1[SIG_LEN];                           // text line for company info
  34         char                    signiture_2[SIG_LEN_2];                         // additional info (can be version number)
  35     char                        chipId[CHIP_ID_LEN];                            // chip id
  36     char                        boardId[BOARD_ID_LEN];                          // board id
  37     unsigned long       productId;                                                      // product id
  38     unsigned long       productVer;                                                     // product version
  39     unsigned long       reserved1;                                                      // reserved for future
  40
  41     unsigned char       imageValidationToken[TOKEN_LEN];        // image validation token - md5 checksum
  42     unsigned char       kernelValidationToken[TOKEN_LEN];       // kernel+tag validation token - md5 checksum
  43
  44         unsigned long   kernelTextAddr;                                         // text section address of kernel
  45         unsigned long   kernelEntryPoint;                                       // entry point address of kernel
  46
  47         unsigned long   totalImageLen;                                          // the sum of kernelLen+rootfsLen+tagLen
  48
  49         unsigned long   kernelAddress;                                          // starting address (offset from the beginning of FILE_TAG) of kernel image
  50         unsigned long   kernelLen;                                                      // length of kernel image
  51
  52         unsigned long   rootfsAddress;                                          // starting address (offset) of filesystem image
  53         unsigned long   rootfsLen;                                                      // length of filesystem image
  54
  55         unsigned long   bootloaderAddress;                                      // starting address (offset) of boot loader image
  56         unsigned long   bootloaderLen;                                          // length of boot loader image
  57
  58 } tplink_image_header_t;
  59
  60 #endif /* ifndef _TP_LINUX_TAG_H_ */