1 files changed, 121 insertions, 0 deletions
diff --git a/tools/firmware-utils/src/buffalo-lib.h b/tools/firmware-utils/src/buffalo-lib.h
new file mode 100644
index 000000000..ba8a50812
--- /dev/null
+++ b/tools/firmware-utils/src/buffalo-lib.h
@@ -0,0 +1,121 @@
+/*
+ *  Copyright (C) 2009-2011 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  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 <stdint.h>
+
+#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));
+
+struct buffalo_tag2 {
+	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	total_len;
+	uint32_t	crc;
+	uint32_t	len1;
+	uint32_t	len2;
+	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 */