e8643b01e6
Embedded lzma decompression library becomes a module usable by other consumers, in addition to geom_uzip. Most important code changes are - removal of XZ_DEC_SINGLE define, we need the code to work with XZ_DEC_DYNALLOC; - xz_crc32_init() call is removed from geom_uzip, xz module handles initialization on its own. xz is no longer embedded into geom_uzip, instead the depend line for the module is provided, and corresponding kernel option is added to each MIPS kernel config file using geom_uzip. The commit also carries unrelated cleanup by removing excess "device geom_uzip" in places which were missed in r344479. Reviewed by: cem, hselasky, ray, slavash (previous versions) Sponsored by: Mellanox Technologies Differential revision: https://reviews.freebsd.org/D19266 MFC after: 3 weeks
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*-
|
|
* Copyright (c) 2004 Max Khon
|
|
* Copyright (c) 2014 Juniper Networks, Inc.
|
|
* Copyright (c) 2006-2016 Maxim Sobolev <sobomax@FreeBSD.org>
|
|
* Copyright (c) 2010-2012 Aleksandr Rybalko
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/systm.h>
|
|
|
|
#include <contrib/xz-embedded/linux/include/linux/xz.h>
|
|
|
|
#include <geom/uzip/g_uzip.h>
|
|
#include <geom/uzip/g_uzip_dapi.h>
|
|
#include <geom/uzip/g_uzip_lzma.h>
|
|
|
|
struct g_uzip_lzma {
|
|
struct g_uzip_dapi pub;
|
|
uint32_t blksz;
|
|
/* XZ decoder structs */
|
|
struct xz_buf b;
|
|
struct xz_dec *s;
|
|
};
|
|
|
|
static int g_uzip_lzma_nop(struct g_uzip_dapi *, const char *);
|
|
|
|
static void
|
|
g_uzip_lzma_free(struct g_uzip_dapi *lzpp)
|
|
{
|
|
struct g_uzip_lzma *lzp;
|
|
|
|
lzp = (struct g_uzip_lzma *)lzpp->pvt;
|
|
if (lzp->s != NULL) {
|
|
xz_dec_end(lzp->s);
|
|
lzp->s = NULL;
|
|
}
|
|
|
|
free(lzp, M_GEOM_UZIP);
|
|
}
|
|
|
|
static int
|
|
g_uzip_lzma_decompress(struct g_uzip_dapi *lzpp, const char *gp_name,
|
|
void *ibp, size_t ilen, void *obp)
|
|
{
|
|
struct g_uzip_lzma *lzp;
|
|
int err;
|
|
|
|
lzp = (struct g_uzip_lzma *)lzpp->pvt;
|
|
|
|
lzp->b.in = ibp;
|
|
lzp->b.out = obp;
|
|
lzp->b.in_pos = lzp->b.out_pos = 0;
|
|
lzp->b.in_size = ilen;
|
|
lzp->b.out_size = lzp->blksz;
|
|
err = (xz_dec_run(lzp->s, &lzp->b) != XZ_STREAM_END) ? 1 : 0;
|
|
/* TODO decoder recovery, if needed */
|
|
if (err != 0) {
|
|
printf("%s: ibp=%p, obp=%p, in_pos=%jd, out_pos=%jd, "
|
|
"in_size=%jd, out_size=%jd\n", __func__, ibp, obp,
|
|
(intmax_t)lzp->b.in_pos, (intmax_t)lzp->b.out_pos,
|
|
(intmax_t)lzp->b.in_size, (intmax_t)lzp->b.out_size);
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
LZ4_compressBound(int isize)
|
|
{
|
|
|
|
return (isize + (isize / 255) + 16);
|
|
}
|
|
|
|
struct g_uzip_dapi *
|
|
g_uzip_lzma_ctor(uint32_t blksz)
|
|
{
|
|
struct g_uzip_lzma *lzp;
|
|
|
|
lzp = malloc(sizeof(struct g_uzip_lzma), M_GEOM_UZIP, M_WAITOK);
|
|
lzp->s = xz_dec_init(XZ_SINGLE, 0);
|
|
if (lzp->s == NULL) {
|
|
goto e1;
|
|
}
|
|
lzp->blksz = blksz;
|
|
lzp->pub.max_blen = LZ4_compressBound(blksz);
|
|
lzp->pub.decompress = &g_uzip_lzma_decompress;
|
|
lzp->pub.free = &g_uzip_lzma_free;
|
|
lzp->pub.rewind = &g_uzip_lzma_nop;
|
|
lzp->pub.pvt = lzp;
|
|
return (&lzp->pub);
|
|
e1:
|
|
free(lzp, M_GEOM_UZIP);
|
|
return (NULL);
|
|
}
|
|
|
|
static int
|
|
g_uzip_lzma_nop(struct g_uzip_dapi *zpp, const char *gp_name)
|
|
{
|
|
|
|
return (0);
|
|
}
|