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Use watchdog-aware functions when calculating hashes of images - take two

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Some files didn't get updated properly with the "Use watchdog-aware
functions when calculating hashes of images" commit, this commit
fixes this.

Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
This commit is contained in:
Bartlomiej Sieka 2008-04-25 13:54:02 +02:00 committed by Wolfgang Denk
parent 1de6b28be5
commit 7590378fb9
4 changed files with 31 additions and 36 deletions
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42
common/image.c
View file

@ -156,6 +156,7 @@ static table_entry_t uimage_comp[] = {
};
uint32_t crc32 (uint32_t, const unsigned char *, uint);
uint32_t crc32_wd (uint32_t, const unsigned char *, uint, uint);
static void genimg_print_size (uint32_t size);
#if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || defined(USE_HOSTCC)
static void genimg_print_time (time_t timestamp);
@ -183,39 +184,11 @@ int image_check_dcrc (image_header_t *hdr)
{
ulong data = image_get_data (hdr);
ulong len = image_get_data_size (hdr);
ulong dcrc = crc32 (0, (unsigned char *)data, len);
ulong dcrc = crc32_wd (0, (unsigned char *)data, len, CHUNKSZ_CRC32);
return (dcrc == image_get_dcrc (hdr));
}
#ifndef USE_HOSTCC
int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz)
{
ulong dcrc = 0;
ulong len = image_get_data_size (hdr);
ulong data = image_get_data (hdr);
#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
ulong cdata = data;
ulong edata = cdata + len;
while (cdata < edata) {
ulong chunk = edata - cdata;
if (chunk > chunksz)
chunk = chunksz;
dcrc = crc32 (dcrc, (unsigned char *)cdata, chunk);
cdata += chunk;
WATCHDOG_RESET ();
}
#else
dcrc = crc32 (0, (unsigned char *)data, len);
#endif
return (dcrc == image_get_dcrc (hdr));
}
#endif /* !USE_HOSTCC */
/**
* image_multi_count - get component (sub-image) count
@ -416,7 +389,7 @@ static image_header_t* image_get_ramdisk (ulong rd_addr, uint8_t arch,
if (verify) {
puts(" Verifying Checksum ... ");
if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
if (!image_check_dcrc (rd_hdr)) {
puts ("Bad Data CRC\n");
show_boot_progress (-12);
return NULL;
@ -1923,15 +1896,16 @@ static int calculate_hash (const void *data, int data_len, const char *algo,
uint8_t *value, int *value_len)
{
if (strcmp (algo, "crc32") == 0 ) {
*((uint32_t *)value) = crc32 (0, data, data_len);
*((uint32_t *)value) = crc32_wd (0, data, data_len,
CHUNKSZ_CRC32);
*((uint32_t *)value) = cpu_to_uimage (*((uint32_t *)value));
*value_len = 4;
} else if (strcmp (algo, "sha1") == 0 ) {
sha1_csum ((unsigned char *) data, data_len,
(unsigned char *) value);
sha1_csum_wd ((unsigned char *) data, data_len,
(unsigned char *) value, CHUNKSZ_SHA1);
*value_len = 20;
} else if (strcmp (algo, "md5") == 0 ) {
md5 ((unsigned char *)data, data_len, value);
md5_wd ((unsigned char *)data, data_len, value, CHUNKSZ_MD5);
*value_len = 16;
} else {
debug ("Unsupported hash alogrithm\n");

17
include/image.h
View file

@ -227,9 +227,23 @@ typedef struct bootm_headers {
/*
* Some systems (for example LWMON) have very short watchdog periods;
* we must make sure to split long operations like memmove() or
* crc32() into reasonable chunks.
* checksum calculations into reasonable chunks.
*/
#ifndef CHUNKSZ
#define CHUNKSZ (64 * 1024)
#endif
#ifndef CHUNKSZ_CRC32
#define CHUNKSZ_CRC32 (64 * 1024)
#endif
#ifndef CHUNKSZ_MD5
#define CHUNKSZ_MD5 (64 * 1024)
#endif
#ifndef CHUNKSZ_SHA1
#define CHUNKSZ_SHA1 (64 * 1024)
#endif
#define uimage_to_cpu(x) ntohl(x)
#define cpu_to_uimage(x) htonl(x)
@ -363,7 +377,6 @@ static inline void image_set_name (image_header_t *hdr, const char *name)
int image_check_hcrc (image_header_t *hdr);
int image_check_dcrc (image_header_t *hdr);
#ifndef USE_HOSTCC
int image_check_dcrc_wd (image_header_t *hdr, ulong chunksize);
int getenv_yesno (char *var);
ulong getenv_bootm_low(void);
ulong getenv_bootm_size(void);

4
lib_generic/md5.c
View file

@ -25,6 +25,10 @@
and to fit the cifs vfs by
Steve French sfrench@us.ibm.com */
#ifndef USE_HOSTCC
#include <common.h>
#endif /* USE_HOSTCC */
#include <watchdog.h>
#include <linux/types.h>
#include <linux/string.h>
#include <u-boot/md5.h>

4
lib_generic/sha1.c
View file

@ -29,6 +29,10 @@
#define _CRT_SECURE_NO_DEPRECATE 1
#endif
#ifndef USE_HOSTCC
#include <common.h>
#endif /* USE_HOSTCC */
#include <watchdog.h>
#include <linux/string.h>
#include "sha1.h"