+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000-2006
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
*/
#include <common.h>
-#include <watchdog.h>
+#include <blk.h>
#include <command.h>
+#include <console.h>
+#include <div64.h>
+#include <gzip.h>
#include <image.h>
#include <malloc.h>
+#include <memalign.h>
+#include <u-boot/crc.h>
+#include <watchdog.h>
#include <u-boot/zlib.h>
+#define HEADER0 '\x1f'
+#define HEADER1 '\x8b'
#define ZALLOC_ALIGNMENT 16
#define HEAD_CRC 2
#define EXTRA_FIELD 4
#define RESERVED 0xe0
#define DEFLATED 8
-void *zalloc(void *, unsigned, unsigned);
-void zfree(void *, void *, unsigned);
-
-void *zalloc(void *x, unsigned items, unsigned size)
+void *gzalloc(void *x, unsigned items, unsigned size)
{
void *p;
return (p);
}
-void zfree(void *x, void *addr, unsigned nb)
+void gzfree(void *x, void *addr, unsigned nb)
{
free (addr);
}
-int gunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp)
+int gzip_parse_header(const unsigned char *src, unsigned long len)
{
int i, flags;
;
if ((flags & HEAD_CRC) != 0)
i += 2;
- if (i >= *lenp) {
+ if (i >= len) {
puts ("Error: gunzip out of data in header\n");
return (-1);
}
+ return i;
+}
+
+int gunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp)
+{
+ int offset = gzip_parse_header(src, *lenp);
+
+ if (offset < 0)
+ return offset;
+
+ return zunzip(dst, dstlen, src, lenp, 1, offset);
+}
+
+#ifdef CONFIG_CMD_UNZIP
+__weak
+void gzwrite_progress_init(ulong expectedsize)
+{
+ putc('\n');
+}
+
+__weak
+void gzwrite_progress(int iteration,
+ ulong bytes_written,
+ ulong total_bytes)
+{
+ if (0 == (iteration & 3))
+ printf("%lu/%lu\r", bytes_written, total_bytes);
+}
+
+__weak
+void gzwrite_progress_finish(int returnval,
+ ulong bytes_written,
+ ulong total_bytes,
+ u32 expected_crc,
+ u32 calculated_crc)
+{
+ if (0 == returnval) {
+ printf("\n\t%lu bytes, crc 0x%08x\n",
+ total_bytes, calculated_crc);
+ } else {
+ printf("\n\tuncompressed %lu of %lu\n"
+ "\tcrcs == 0x%08x/0x%08x\n",
+ bytes_written, total_bytes,
+ expected_crc, calculated_crc);
+ }
+}
+
+int gzwrite(unsigned char *src, int len,
+ struct blk_desc *dev,
+ unsigned long szwritebuf,
+ ulong startoffs,
+ ulong szexpected)
+{
+ int i, flags;
+ z_stream s;
+ int r = 0;
+ unsigned char *writebuf;
+ unsigned crc = 0;
+ ulong totalfilled = 0;
+ lbaint_t blksperbuf, outblock;
+ u32 expected_crc;
+ u32 payload_size;
+ int iteration = 0;
+
+ if (!szwritebuf ||
+ (szwritebuf % dev->blksz) ||
+ (szwritebuf < dev->blksz)) {
+ printf("%s: size %lu not a multiple of %lu\n",
+ __func__, szwritebuf, dev->blksz);
+ return -1;
+ }
+
+ if (startoffs & (dev->blksz-1)) {
+ printf("%s: start offset %lu not a multiple of %lu\n",
+ __func__, startoffs, dev->blksz);
+ return -1;
+ }
+
+ blksperbuf = szwritebuf / dev->blksz;
+ outblock = lldiv(startoffs, dev->blksz);
+
+ /* skip header */
+ i = 10;
+ flags = src[3];
+ if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
+ puts("Error: Bad gzipped data\n");
+ return -1;
+ }
+ if ((flags & EXTRA_FIELD) != 0)
+ i = 12 + src[10] + (src[11] << 8);
+ if ((flags & ORIG_NAME) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & COMMENT) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & HEAD_CRC) != 0)
+ i += 2;
+
+ if (i >= len-8) {
+ puts("Error: gunzip out of data in header");
+ return -1;
+ }
+
+ payload_size = len - i - 8;
+
+ memcpy(&expected_crc, src + len - 8, sizeof(expected_crc));
+ expected_crc = le32_to_cpu(expected_crc);
+ u32 szuncompressed;
+ memcpy(&szuncompressed, src + len - 4, sizeof(szuncompressed));
+ if (szexpected == 0) {
+ szexpected = le32_to_cpu(szuncompressed);
+ } else if (szuncompressed != (u32)szexpected) {
+ printf("size of %lx doesn't match trailer low bits %x\n",
+ szexpected, szuncompressed);
+ return -1;
+ }
+ if (lldiv(szexpected, dev->blksz) > (dev->lba - outblock)) {
+ printf("%s: uncompressed size %lu exceeds device size\n",
+ __func__, szexpected);
+ return -1;
+ }
+
+ gzwrite_progress_init(szexpected);
+
+ s.zalloc = gzalloc;
+ s.zfree = gzfree;
+
+ r = inflateInit2(&s, -MAX_WBITS);
+ if (r != Z_OK) {
+ printf("Error: inflateInit2() returned %d\n", r);
+ return -1;
+ }
+
+ s.next_in = src + i;
+ s.avail_in = payload_size+8;
+ writebuf = (unsigned char *)malloc_cache_aligned(szwritebuf);
+
+ /* decompress until deflate stream ends or end of file */
+ do {
+ if (s.avail_in == 0) {
+ printf("%s: weird termination with result %d\n",
+ __func__, r);
+ break;
+ }
+
+ /* run inflate() on input until output buffer not full */
+ do {
+ unsigned long blocks_written;
+ int numfilled;
+ lbaint_t writeblocks;
+
+ s.avail_out = szwritebuf;
+ s.next_out = writebuf;
+ r = inflate(&s, Z_SYNC_FLUSH);
+ if ((r != Z_OK) &&
+ (r != Z_STREAM_END)) {
+ printf("Error: inflate() returned %d\n", r);
+ goto out;
+ }
+ numfilled = szwritebuf - s.avail_out;
+ crc = crc32(crc, writebuf, numfilled);
+ totalfilled += numfilled;
+ if (numfilled < szwritebuf) {
+ writeblocks = (numfilled+dev->blksz-1)
+ / dev->blksz;
+ memset(writebuf+numfilled, 0,
+ dev->blksz-(numfilled%dev->blksz));
+ } else {
+ writeblocks = blksperbuf;
+ }
+
+ gzwrite_progress(iteration++,
+ totalfilled,
+ szexpected);
+ blocks_written = blk_dwrite(dev, outblock,
+ writeblocks, writebuf);
+ outblock += blocks_written;
+ if (ctrlc()) {
+ puts("abort\n");
+ goto out;
+ }
+ WATCHDOG_RESET();
+ } while (s.avail_out == 0);
+ /* done when inflate() says it's done */
+ } while (r != Z_STREAM_END);
+
+ if ((szexpected != totalfilled) ||
+ (crc != expected_crc))
+ r = -1;
+ else
+ r = 0;
+
+out:
+ gzwrite_progress_finish(r, totalfilled, szexpected,
+ expected_crc, crc);
+ free(writebuf);
+ inflateEnd(&s);
- return zunzip(dst, dstlen, src, lenp, 1, i);
+ return r;
}
+#endif
/*
* Uncompress blocks compressed with zlib without headers
int stoponerr, int offset)
{
z_stream s;
+ int err = 0;
int r;
- s.zalloc = zalloc;
- s.zfree = zfree;
+ s.zalloc = gzalloc;
+ s.zfree = gzfree;
r = inflateInit2(&s, -MAX_WBITS);
if (r != Z_OK) {
- printf ("Error: inflateInit2() returned %d\n", r);
+ printf("Error: inflateInit2() returned %d\n", r);
return -1;
}
s.next_in = src + offset;
s.avail_out = dstlen;
do {
r = inflate(&s, Z_FINISH);
- if (r != Z_STREAM_END && r != Z_BUF_ERROR && stoponerr == 1) {
+ if (stoponerr == 1 && r != Z_STREAM_END &&
+ (s.avail_in == 0 || s.avail_out == 0 || r != Z_BUF_ERROR)) {
printf("Error: inflate() returned %d\n", r);
- inflateEnd(&s);
- return -1;
+ err = -1;
+ break;
}
- s.avail_in = *lenp - offset - (int)(s.next_out - (unsigned char*)dst);
- s.avail_out = dstlen;
} while (r == Z_BUF_ERROR);
*lenp = s.next_out - (unsigned char *) dst;
inflateEnd(&s);
- return 0;
+ return err;
}
projects / J-u-boot.git / blobdiff