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authorGabor Juhos <juhosg@openwrt.org>2011-05-31 22:53:21 +0000
committerGabor Juhos <juhosg@openwrt.org>2011-05-31 22:53:21 +0000
commitfb9a672c788eeb0e77cfd227d425c1cc6468b923 (patch)
treeb5515e5753d6293e2efb1d6051f58a9fe9b56d32 /tools/firmware-utils/src/buffalo-lib.h
parent0677e162481b9624760ed1f8ffa6f56a2ebe4fe9 (diff)
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tools/firmware-utils: add buffalo specific fw tools
SVN-Revision: 27050
Diffstat (limited to 'tools/firmware-utils/src/buffalo-lib.h')
-rw-r--r--tools/firmware-utils/src/buffalo-lib.h99
1 files changed, 99 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 0000000000..614438e789
--- /dev/null
+++ b/tools/firmware-utils/src/buffalo-lib.h
@@ -0,0 +1,99 @@
+/*
+ * 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));
+
+#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 */