From fb9a672c788eeb0e77cfd227d425c1cc6468b923 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Tue, 31 May 2011 22:53:21 +0000 Subject: tools/firmware-utils: add buffalo specific fw tools SVN-Revision: 27050 --- tools/firmware-utils/src/buffalo-lib.h | 99 ++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 tools/firmware-utils/src/buffalo-lib.h (limited to 'tools/firmware-utils/src/buffalo-lib.h') diff --git a/tools/firmware-utils/src/buffalo-lib.h b/tools/firmware-utils/src/buffalo-lib.h new file mode 100644 index 0000000000..614438e789 --- /dev/null +++ b/tools/firmware-utils/src/buffalo-lib.h @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2009-2011 Gabor Juhos + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#ifndef _BUFFALO_LIB_H +#define _BUFFALO_LIB_H + +#include + +#define ARRAY_SIZE(_a) (sizeof((_a)) / sizeof((_a)[0])) +#define BIT(_x) (1UL << (_x)) + +#define TAG_BRAND_LEN 32 +#define TAG_PRODUCT_LEN 32 +#define TAG_VERSION_LEN 8 +#define TAG_REGION_LEN 2 +#define TAG_LANGUAGE_LEN 8 +#define TAG_PLATFORM_LEN 8 +#define TAG_HWVER_LEN 4 +#define TAG_HWVER_VAL_LEN 4 + +struct buffalo_tag { + unsigned char product[TAG_PRODUCT_LEN]; + unsigned char brand[TAG_BRAND_LEN]; + unsigned char ver_major[TAG_VERSION_LEN]; + unsigned char ver_minor[TAG_VERSION_LEN]; + unsigned char region_code[2]; + uint32_t region_mask; + unsigned char unknown0[2]; + unsigned char language[TAG_LANGUAGE_LEN]; + unsigned char platform[TAG_PLATFORM_LEN]; + unsigned char hwv[TAG_HWVER_LEN]; + unsigned char hwv_val[TAG_HWVER_VAL_LEN]; + uint8_t unknown1[24]; + + uint32_t len; + uint32_t crc; + uint32_t base1; + uint32_t base2; + uint32_t data_len; + uint8_t flag; + uint8_t unknown2[3]; +} __attribute ((packed)); + +#define ENC_PRODUCT_LEN 32 +#define ENC_VERSION_LEN 8 +#define ENC_MAGIC_LEN 6 + +unsigned long enc_compute_header_len(char *product, char *version); +unsigned long enc_compute_buf_len(char *product, char *version, + unsigned long datalen); + +struct enc_param { + unsigned char *key; + unsigned char magic[ENC_MAGIC_LEN]; + unsigned char product[ENC_PRODUCT_LEN]; + unsigned char version[ENC_VERSION_LEN]; + unsigned char seed; + int longstate; + unsigned datalen; + uint32_t csum; +}; + +int encrypt_buf(struct enc_param *ep, unsigned char *hdr, + unsigned char *data); +int decrypt_buf(struct enc_param *ep, unsigned char *data, + unsigned long datalen); + +#define BCRYPT_DEFAULT_STATE_LEN 256 +#define BCRYPT_MAX_KEYLEN 254 + +struct bcrypt_ctx { + unsigned long i; + unsigned long j; + unsigned char *state; + unsigned long state_len; +}; + +int bcrypt_init(struct bcrypt_ctx *ctx, void *key, int keylen, + unsigned long state_len); +int bcrypt_process(struct bcrypt_ctx *ctx, unsigned char *src, + unsigned char *dst, unsigned long len); +void bcrypt_finish(struct bcrypt_ctx *ctx); +int bcrypt_buf(unsigned char seed, unsigned char *key, unsigned char *src, + unsigned char *dst, unsigned long len, int longstate); + +uint32_t buffalo_csum(uint32_t csum, void *buf, unsigned long len); +uint32_t buffalo_crc(void *buf, unsigned long len); + +ssize_t get_file_size(char *name); +int read_file_to_buf(char *name, void *buf, ssize_t buflen); +int write_buf_to_file(char *name, void *buf, ssize_t buflen); + +#endif /* _BUFFALO_LIB_H */ -- cgit v1.2.3