1 files changed, 0 insertions, 165 deletions
diff --git a/futility/ryu_root_header.c b/futility/ryu_root_header.c
deleted file mode 100644
index ef005311..00000000
--- a/futility/ryu_root_header.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/* Copyright 2015 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <errno.h>
-#include <getopt.h>
-#include <inttypes.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "2common.h"
-#include "2sha.h"
-#include "2sysincludes.h"
-#include "futility.h"
-
-#define SEARCH_STRIDE 4
-
-/**
- * Check if the pointer contains the magic string.  We need to use a
- * case-swapped version, so that the actual magic string doesn't appear in the
- * code, to avoid falsely finding it when searching for the struct.
- */
-static int is_magic(const void *ptr)
-{
-	const char magic_inv[RYU_ROOT_KEY_HASH_MAGIC_SIZE] =
-		RYU_ROOT_KEY_HASH_MAGIC_INVCASE;
-	const char *magic = ptr;
-	int i;
-
-	for (i = 0; i < RYU_ROOT_KEY_HASH_MAGIC_SIZE; i++) {
-		if (magic[i] != (magic_inv[i] ^ 0x20))
-			return 0;
-	}
-
-	return 1;
-}
-
-static int valid_ryu_root_header(struct vb2_ryu_root_key_hash *hash,
-				 size_t size)
-{
-	if (!is_magic(hash->magic))
-		return 0;  /* Wrong magic */
-
-	if (hash->header_version_major != RYU_ROOT_KEY_HASH_VERSION_MAJOR)
-		return 0;  /* Version we can't parse */
-
-	if (hash->struct_size < EXPECTED_VB2_RYU_ROOT_KEY_HASH_SIZE)
-		return 0;  /* Header too small */
-
-	if (hash->struct_size > size)
-		return 0;  /* Claimed size doesn't fit in buffer */
-
-	return 1;
-}
-
-/**
- * Find the root key hash struct and return it or NULL if error.
- */
-static struct vb2_ryu_root_key_hash *find_ryu_root_header(uint8_t *ptr,
-							  size_t size)
-{
-	size_t i;
-	struct vb2_ryu_root_key_hash *tmp, *hash = NULL;
-	int count = 0;
-
-	/* Look for the ryu root key hash header */
-	for (i = 0; i <= size - SEARCH_STRIDE; i += SEARCH_STRIDE) {
-		if (!is_magic(ptr + i))
-			continue;
-
-		/* Found something. See if it's any good. */
-		tmp = (struct vb2_ryu_root_key_hash *) (ptr + i);
-		if (valid_ryu_root_header(tmp, size - i))
-			if (!count++)
-				hash = tmp;
-	}
-
-	switch (count) {
-	case 0:
-		return NULL;
-	case 1:
-		return hash;
-	default:
-		fprintf(stderr,
-			"WARNING: multiple ryu root hash headers found\n");
-		/* But hey, it's only a warning.  Use the first one. */
-		return hash;
-	}
-}
-
-static void calculate_root_key_hash(uint8_t *digest, size_t digest_size,
-				    const struct vb2_gbb_header *gbb)
-{
-	const uint8_t *gbb_base = (const uint8_t *)gbb;
-
-	vb2_digest_buffer(gbb_base + gbb->rootkey_offset,
-			  gbb->rootkey_size,
-			  VB2_HASH_SHA256,
-			  digest,
-			  digest_size);
-}
-
-int fill_ryu_root_header(uint8_t *ptr, size_t size,
-			 const struct vb2_gbb_header *gbb)
-{
-	struct vb2_ryu_root_key_hash *hash;
-
-	/*
-	 * Find the ryu root header.  If not found, nothing we can do, but
-	 * that's ok because most images don't have the header.
-	 */
-	hash = find_ryu_root_header(ptr, size);
-	if (!hash)
-		return 0;
-
-	/* Update the hash stored in the header based on the root key */
-	calculate_root_key_hash(hash->root_key_hash_digest,
-				sizeof(hash->root_key_hash_digest),
-				gbb);
-
-	printf(" - calculate ryu root hash: success\n");
-	return 0;
-}
-
-int verify_ryu_root_header(uint8_t *ptr, size_t size,
-			   const struct vb2_gbb_header *gbb)
-{
-	uint8_t digest[VB2_SHA256_DIGEST_SIZE] = {0};
-
-	struct vb2_ryu_root_key_hash *hash;
-
-	/*
-	 * Find the ryu root header.  If not found, nothing we can do, but
-	 * that's ok because most images don't have the header.
-	 */
-	hash = find_ryu_root_header(ptr, size);
-	if (!hash) {
-		printf(" - ryu root hash not found\n");
-		return 0;
-	}
-
-	/* Check for all 0's, which means hash hasn't been set */
-	if (0 == memcmp(digest, hash->root_key_hash_digest, sizeof(digest))) {
-		printf(" - ryu root hash is unset\n");
-		return 0;
-	}
-
-	/* Update the hash stored in the header based on the root key */
-	calculate_root_key_hash(digest, sizeof(digest), gbb);
-
-	if (0 == memcmp(digest, hash->root_key_hash_digest, sizeof(digest))) {
-		printf(" - ryu root hash verified\n");
-		return 0;
-	} else {
-		printf(" - ryu root hash does not verify\n");
-		return -1;
-	}
-}