#ifndef __BCM63XX_TAG_H #define __BCM63XX_TAG_H #define IMAGE_LEN 10 /* Length of Length Field */ #define ADDRESS_LEN 12 /* Length of Address field */ #define TAGID_LEN 6 /* Length of tag ID */ #define TAGINFO_LEN 20 /* Length of vendor information field in tag */ #define TAGVER_LEN 4 /* Length of Tag Version */ #define TAGLAYOUT_LEN 4 /* Length of FlashLayoutVer */ #define NUM_TAGID 5 #define IMAGETAG_CRC_START 0xFFFFFFFF struct tagiddesc_t { char tagid[TAGID_LEN + 1]; char tagiddesc[80]; }; // bc221 is used by BT Voyager and should be right // bc310 should be right, and may apply to 3.08 code as well #define TAGID_DEFINITIONS { \ { "bccfe", "Broadcom CFE flash image" }, \ { "bc300", "Broadcom code version 3.00-3.06 and all ftp/tftp flash" }, \ { "ag306", "Alice Gate (Pirelli, based on Broadcom 3.06)" }, \ { "bc221", "Broadcom code version 2.21" }, \ { "bc310", "Broadcom code version 3.10-3.12" }, \ } struct bcm_tag_bccfe { unsigned char tagVersion[TAGVER_LEN]; // 0-3: Version of the image tag unsigned char sig_1[20]; // 4-23: Company Line 1 unsigned char sig_2[14]; // 24-37: Company Line 2 unsigned char chipid[6]; // 38-43: Chip this image is for unsigned char boardid[16]; // 44-59: Board name unsigned char big_endian[2]; // 60-61: Map endianness -- 1 BE 0 LE unsigned char totalLength[IMAGE_LEN]; // 62-71: Total length of image unsigned char cfeAddress[ADDRESS_LEN]; // 72-83: Address in memory of CFE unsigned char cfeLength[IMAGE_LEN]; // 84-93: Size of CFE unsigned char rootAddress[ADDRESS_LEN]; // 94-105: Address in memory of rootfs unsigned char rootLength[IMAGE_LEN]; // 106-115: Size of rootfs unsigned char kernelAddress[ADDRESS_LEN]; // 116-127: Address in memory of kernel unsigned char kernelLength[IMAGE_LEN]; // 128-137: Size of kernel unsigned char dualImage[2]; // 138-139: Unused at present unsigned char inactiveFlag[2]; // 140-141: Unused at present unsigned char information1[TAGINFO_LEN]; // 142-161: Unused at present unsigned char tagId[TAGID_LEN]; // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced unsigned char tagIdCRC[4]; // 168-171: CRC32 of tagId unsigned char reserved1[44]; // 172-215: Reserved area not in use unsigned char imageCRC[4]; // 216-219: CRC32 of images unsigned char reserved2[16]; // 220-235: Unused at present unsigned char headerCRC[4]; // 236-239: CRC32 of header excluding tagVersion unsigned char reserved3[16]; // 240-255: Unused at present }; struct bcm_tag_bc300 { unsigned char tagVersion[TAGVER_LEN]; // 0-3: Version of the image tag unsigned char sig_1[20]; // 4-23: Company Line 1 unsigned char sig_2[14]; // 24-37: Company Line 2 unsigned char chipid[6]; // 38-43: Chip this image is for unsigned char boardid[16]; // 44-59: Board name unsigned char big_endian[2]; // 60-61: Map endianness -- 1 BE 0 LE unsigned char totalLength[IMAGE_LEN]; // 62-71: Total length of image unsigned char cfeAddress[ADDRESS_LEN]; // 72-83: Address in memory of CFE unsigned char cfeLength[IMAGE_LEN]; // 84-93: Size of CFE unsigned char flashImageStart[ADDRESS_LEN]; // 94-105: Address in memory of kernel (start of image) unsigned char flashRootLength[IMAGE_LEN]; // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image) unsigned char kernelAddress[ADDRESS_LEN]; // 116-127: Address in memory of kernel unsigned char kernelLength[IMAGE_LEN]; // 128-137: Size of kernel unsigned char dualImage[2]; // 138-139: Unused at present unsigned char inactiveFlag[2]; // 140-141: Unused at present unsigned char information1[TAGINFO_LEN]; // 142-161: Unused at present unsigned char tagId[TAGID_LEN]; // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced unsigned char tagIdCRC[4]; // 168-173: CRC32 to ensure validity of tagId unsigned char rootAddress[ADDRESS_LEN]; // 174-183: Address in memory of rootfs partition unsigned char rootLength[IMAGE_LEN]; // 184-193: Size of rootfs partition unsigned char reserved1[22]; // 194-215: Reserved area not in use unsigned char imageCRC[4]; // 216-219: CRC32 of images unsigned char reserved2[16]; // 220-235: Unused at present unsigned char headerCRC[4]; // 236-239: CRC32 of header excluding tagVersion unsigned char reserved3[16]; // 240-255: Unused at present }; struct bcm_tag_ag306 { unsigned char tagVersion[TAGVER_LEN]; // 0-3: Version of the image tag unsigned char sig_1[20]; // 4-23: Company Line 1 unsigned char sig_2[14]; // 24-37: Company Line 2 unsigned char chipid[6]; // 38-43: Chip this image is for unsigned char boardid[16]; // 44-59: Board name unsigned char big_endian[2]; // 60-61: Map endianness -- 1 BE 0 LE unsigned char totalLength[IMAGE_LEN]; // 62-71: Total length of image unsigned char cfeAddress[ADDRESS_LEN]; // 72-83: Address in memory of CFE unsigned char cfeLength[IMAGE_LEN]; // 84-93: Size of CFE unsigned char flashImageStart[ADDRESS_LEN]; // 94-105: Address in memory of kernel (start of image) unsigned char flashRootLength[IMAGE_LEN]; // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image) unsigned char kernelAddress[ADDRESS_LEN]; // 116-127: Address in memory of kernel unsigned char kernelLength[IMAGE_LEN]; // 128-137: Size of kernel unsigned char dualImage[2]; // 138-139: Unused at present unsigned char inactiveFlag[2]; // 140-141: Unused at present unsigned char information1[TAGINFO_LEN]; // 142-161: Unused at present unsigned char information2[54]; // 162-215: Compilation and related information (not generated/used by OpenWRT) unsigned char kernelCRC[4] ; // 216-219: CRC32 of images unsigned char rootAddress[ADDRESS_LEN]; // 220-231: Address in memory of rootfs partition unsigned char tagIdCRC[4]; // 232-235: Checksum to ensure validity of tagId unsigned char headerCRC[4]; // 236-239: CRC32 of header excluding tagVersion unsigned char rootLength[IMAGE_LEN]; // 240-249: Size of rootfs unsigned char tagId[TAGID_LEN]; // 250-255: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced }; struct bcm_tag_bc221 { unsigned char tagVersion[TAGVER_LEN]; // 0-3: Version of the image tag unsigned char sig_1[20]; // 4-23: Company Line 1 unsigned char sig_2[14]; // 24-37: Company Line 2 unsigned char chipid[6]; // 38-43: Chip this image is for unsigned char boardid[16]; // 44-59: Board name unsigned char big_endian[2]; // 60-61: Map endianness -- 1 BE 0 LE unsigned char totalLength[IMAGE_LEN]; // 62-71: Total length of image unsigned char cfeAddress[ADDRESS_LEN]; // 72-83: Address in memory of CFE unsigned char cfeLength[IMAGE_LEN]; // 84-93: Size of CFE unsigned char flashImageStart[ADDRESS_LEN]; // 94-105: Address in memory of kernel (start of image) unsigned char flashRootLength[IMAGE_LEN]; // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image) unsigned char kernelAddress[ADDRESS_LEN]; // 116-127: Address in memory of kernel unsigned char kernelLength[IMAGE_LEN]; // 128-137: Size of kernel unsigned char dualImage[2]; // 138-139: Unused at present unsigned char inactiveFlag[2]; // 140-141: Unused at present unsigned char rsa_signature[TAGINFO_LEN]; // 142-161: RSA Signature (unused at present; some vendors may use this) unsigned char reserved5[2]; // 162-163: Unused at present unsigned char tagId[TAGID_LEN]; // 164-169: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced unsigned char rootAddress[ADDRESS_LEN]; // 170-181: Address in memory of rootfs partition unsigned char rootLength[IMAGE_LEN]; // 182-191: Size of rootfs partition unsigned char flashLayoutVer[4]; // 192-195: Version flash layout unsigned char fskernelCRC[4]; // 196-199: Guessed to be kernel CRC unsigned char reserved4[16]; // 200-215: Reserved area; unused at present unsigned char imageCRC[4]; // 216-219: CRC32 of images unsigned char reserved2[12]; // 220-231: Unused at present unsigned char tagIdCRC[4]; // 232-235: CRC32 to ensure validity of tagId unsigned char headerCRC[4]; // 236-239: CRC32 of header excluding tagVersion unsigned char reserved3[16]; // 240-255: Unused at present }; struct bcm_tag_bc310 { unsigned char tagVersion[4]; // 0-3: Version of the image tag unsigned char sig_1[20]; // 4-23: Company Line 1 unsigned char sig_2[14]; // 24-37: Company Line 2 unsigned char chipid[6]; // 38-43: Chip this image is for unsigned char boardid[16]; // 44-59: Board name unsigned char big_endian[2]; // 60-61: Map endianness -- 1 BE 0 LE unsigned char totalLength[IMAGE_LEN]; // 62-71: Total length of image unsigned char cfeAddress[ADDRESS_LEN]; // 72-83: Address in memory of CFE unsigned char cfeLength[IMAGE_LEN]; // 84-93: Size of CFE unsigned char flashImageStart[ADDRESS_LEN]; // 94-105: Address in memory of kernel (start of image) unsigned char flashRootLength[IMAGE_LEN]; // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image) unsigned char kernelAddress[ADDRESS_LEN]; // 116-127: Address in memory of kernel unsigned char kernelLength[IMAGE_LEN]; // 128-137: Size of kernel unsigned char dualImage[2]; // 138-139: Unused at present unsigned char inactiveFlag[2]; // 140-141: Unused at present unsigned char information1[TAGINFO_LEN]; // 142-161: Unused at present; Some vendors use this for optional information unsigned char tagId[6]; // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced unsigned char tagIdCRC[4]; // 168-171: CRC32 to ensure validity of tagId unsigned char rootAddress[ADDRESS_LEN]; // 172-183: Address in memory of rootfs partition unsigned char rootLength[IMAGE_LEN]; // 184-193: Size of rootfs partition unsigned char reserved1[22]; // 193-215: Reserved area not in use unsigned char imageCRC[4]; // 216-219: CRC32 of images unsigned char rootfsCRC[4]; // 220-227: CRC32 of rootfs partition unsigned char kernelCRC[4]; // 224-227: CRC32 of kernel partition unsigned char reserved2[8]; // 228-235: Unused at present unsigned char headerCRC[4]; // 235-239: CRC32 of header excluding tagVersion unsigned char reserved3[16]; // 240-255: Unused at present }; union bcm_tag { struct bcm_tag_bccfe bccfe; struct bcm_tag_bc300 bc300; struct bcm_tag_ag306 ag306; struct bcm_tag_bc221 bc221; struct bcm_tag_bc310 bc310; }; #endif /* __BCM63XX_TAG_H */