X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=common%2Fhash.c;h=ff4986a6190269ed4659685fd9cb77d8c423fae2;hb=b9da77f1958aab4ec50ff2f095b40464ca2489dd;hp=cf4d70f852c6aa9fcfe03be45cda3090864f1ada;hpb=8197d92843952b376915fdbcbf67c723feab1532;p=oweals%2Fu-boot.git

diff --git a/common/hash.c b/common/hash.c
index cf4d70f852..ff4986a619 100644
--- a/common/hash.c
+++ b/common/hash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2012 The Chromium OS Authors.
  *
@@ -6,18 +7,18 @@
  *
  * (C) Copyright 2000
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef USE_HOSTCC
 #include <common.h>
 #include <command.h>
+#include <env.h>
 #include <malloc.h>
 #include <mapmem.h>
 #include <hw_sha.h>
 #include <asm/io.h>
 #include <linux/errno.h>
+#include <u-boot/crc.h>
 #else
 #include "mkimage.h"
 #include <time.h>
@@ -30,6 +31,12 @@
 #include <u-boot/sha256.h>
 #include <u-boot/md5.h>
 
+#if !defined(USE_HOSTCC) && defined(CONFIG_NEEDS_MANUAL_RELOC)
+DECLARE_GLOBAL_DATA_PTR;
+#endif
+
+static void reloc_update(void);
+
 #if defined(CONFIG_SHA1) && !defined(CONFIG_SHA_PROG_HW_ACCEL)
 static int hash_init_sha1(struct hash_algo *algo, void **ctxp)
 {
@@ -86,6 +93,33 @@ static int hash_finish_sha256(struct hash_algo *algo, void *ctx, void
 }
 #endif
 
+static int hash_init_crc16_ccitt(struct hash_algo *algo, void **ctxp)
+{
+	uint16_t *ctx = malloc(sizeof(uint16_t));
+	*ctx = 0;
+	*ctxp = ctx;
+	return 0;
+}
+
+static int hash_update_crc16_ccitt(struct hash_algo *algo, void *ctx,
+				   const void *buf, unsigned int size,
+				   int is_last)
+{
+	*((uint16_t *)ctx) = crc16_ccitt(*((uint16_t *)ctx), buf, size);
+	return 0;
+}
+
+static int hash_finish_crc16_ccitt(struct hash_algo *algo, void *ctx,
+				   void *dest_buf, int size)
+{
+	if (size < algo->digest_size)
+		return -1;
+
+	*((uint16_t *)dest_buf) = *((uint16_t *)ctx);
+	free(ctx);
+	return 0;
+}
+
 static int hash_init_crc32(struct hash_algo *algo, void **ctxp)
 {
 	uint32_t *ctx = malloc(sizeof(uint32_t));
@@ -160,6 +194,15 @@ static struct hash_algo hash_algo[] = {
 #endif
 	},
 #endif
+	{
+		.name		= "crc16-ccitt",
+		.digest_size	= 2,
+		.chunk_size	= CHUNKSZ,
+		.hash_func_ws	= crc16_ccitt_wd_buf,
+		.hash_init	= hash_init_crc16_ccitt,
+		.hash_update	= hash_update_crc16_ccitt,
+		.hash_finish	= hash_finish_crc16_ccitt,
+	},
 	{
 		.name		= "crc32",
 		.digest_size	= 4,
@@ -179,10 +222,31 @@ static struct hash_algo hash_algo[] = {
 #define multi_hash()	0
 #endif
 
+static void reloc_update(void)
+{
+#if !defined(USE_HOSTCC) && defined(CONFIG_NEEDS_MANUAL_RELOC)
+	int i;
+	static bool done;
+
+	if (!done) {
+		done = true;
+		for (i = 0; i < ARRAY_SIZE(hash_algo); i++) {
+			hash_algo[i].name += gd->reloc_off;
+			hash_algo[i].hash_func_ws += gd->reloc_off;
+			hash_algo[i].hash_init += gd->reloc_off;
+			hash_algo[i].hash_update += gd->reloc_off;
+			hash_algo[i].hash_finish += gd->reloc_off;
+		}
+	}
+#endif
+}
+
 int hash_lookup_algo(const char *algo_name, struct hash_algo **algop)
 {
 	int i;
 
+	reloc_update();
+
 	for (i = 0; i < ARRAY_SIZE(hash_algo); i++) {
 		if (!strcmp(algo_name, hash_algo[i].name)) {
 			*algop = &hash_algo[i];
@@ -199,6 +263,8 @@ int hash_progressive_lookup_algo(const char *algo_name,
 {
 	int i;
 
+	reloc_update();
+
 	for (i = 0; i < ARRAY_SIZE(hash_algo); i++) {
 		if (!strcmp(algo_name, hash_algo[i].name)) {
 			if (hash_algo[i].hash_init) {
@@ -390,7 +456,7 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag,
 
 	if (multi_hash()) {
 		struct hash_algo *algo;
-		uint8_t output[HASH_MAX_DIGEST_SIZE];
+		u8 *output;
 		uint8_t vsum[HASH_MAX_DIGEST_SIZE];
 		void *buf;
 
@@ -405,6 +471,9 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag,
 			return 1;
 		}
 
+		output = memalign(ARCH_DMA_MINALIGN,
+				  sizeof(uint32_t) * HASH_MAX_DIGEST_SIZE);
+
 		buf = map_sysmem(addr, len);
 		algo->hash_func_ws(buf, len, output, algo->chunk_size);
 		unmap_sysmem(buf);
@@ -440,6 +509,8 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag,
 				store_result(algo, output, *argv,
 					flags & HASH_FLAG_ENV);
 			}
+		unmap_sysmem(output);
+
 		}
 
 	/* Horrible code size hack for boards that just want crc32 */