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kernel: remove ubifs xz decompression support

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It has been unused, and less useful than squashfs for cases where flash
space usage matters.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2017-01-09 14:00:24 +01:00
parent 8d2171e469
commit 018d80007e
28 changed files with 5 additions and 1128 deletions
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2
target/linux/apm821xx/config-4.4
View file

@ -59,7 +59,6 @@ CONFIG_CRYPTO_MD5_PPC=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_SHA1_PPC=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DECOMPRESS_GZIP=y
# CONFIG_DEFAULT_UIMAGE is not set
CONFIG_DTC=y
@ -315,7 +314,6 @@ CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_UBIFS_FS is not set
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
# CONFIG_UBIFS_FS_LZO is not set
# CONFIG_UBIFS_FS_XZ is not set
# CONFIG_UBIFS_FS_ZLIB is not set
CONFIG_USB_SUPPORT=y
CONFIG_VDSO32=y

1
target/linux/at91/config-4.4
View file

@ -257,7 +257,6 @@ CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
# CONFIG_UBIFS_FS_XZ is not set
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
CONFIG_USB_SUPPORT=y

2
target/linux/bcm53xx/config-4.4
View file

@ -104,7 +104,6 @@ CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DEBUG_BCM_5301X=y
CONFIG_DEBUG_INFO=y
@ -309,7 +308,6 @@ CONFIG_TREE_RCU=y
CONFIG_UBIFS_FS=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
CONFIG_USB_SUPPORT=y

1
target/linux/generic/config-3.18
View file

@ -790,7 +790,6 @@ CONFIG_CRYPTO_PCRYPT=y
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_XZ is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYSTALHD is not set
# CONFIG_CS5535_MFGPT is not set

1
target/linux/generic/config-4.1
View file

@ -822,7 +822,6 @@ CONFIG_CRYPTO_PCRYPT=y
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_XZ is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CRYSTALHD is not set
# CONFIG_CS5535_MFGPT is not set

1
target/linux/generic/config-4.4
View file

@ -823,7 +823,6 @@ CONFIG_CRYPTO_PCRYPT=y
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_XZ is not set
# CONFIG_CRYPTO_ZLIB is not set
# CONFIG_CS5535_MFGPT is not set
# CONFIG_CS89x0 is not set

146
target/linux/generic/patches-3.18/540-crypto-xz-decompression-support.patch
View file

@ -1,146 +0,0 @@
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1437,6 +1437,13 @@ config CRYPTO_LZ4HC
help
This is the LZ4 high compression mode algorithm.
+config CRYPTO_XZ
+ tristate "XZ compression algorithm"
+ select CRYPTO_ALGAPI
+ select XZ_DEC
+ help
+ This is the XZ algorithm. Only decompression is supported for now.
+
comment "Random Number Generation"
config CRYPTO_ANSI_CPRNG
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -89,6 +89,7 @@ obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.
obj-$(CONFIG_CRYPTO_LZO) += lzo.o
obj-$(CONFIG_CRYPTO_LZ4) += lz4.o
obj-$(CONFIG_CRYPTO_LZ4HC) += lz4hc.o
+obj-$(CONFIG_CRYPTO_XZ) += xz.o
obj-$(CONFIG_CRYPTO_842) += 842.o
obj-$(CONFIG_CRYPTO_RNG2) += rng.o
obj-$(CONFIG_CRYPTO_RNG2) += krng.o
--- /dev/null
+++ b/crypto/xz.c
@@ -0,0 +1,117 @@
+/*
+ * Cryptographic API.
+ *
+ * XZ decompression support.
+ *
+ * Copyright (c) 2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/xz.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/net.h>
+
+struct xz_comp_ctx {
+ struct xz_dec *decomp_state;
+ struct xz_buf decomp_buf;
+};
+
+static int crypto_xz_decomp_init(struct xz_comp_ctx *ctx)
+{
+ ctx->decomp_state = xz_dec_init(XZ_SINGLE, 0);
+ if (!ctx->decomp_state)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void crypto_xz_decomp_exit(struct xz_comp_ctx *ctx)
+{
+ xz_dec_end(ctx->decomp_state);
+}
+
+static int crypto_xz_init(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ return crypto_xz_decomp_init(ctx);
+}
+
+static void crypto_xz_exit(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_xz_decomp_exit(ctx);
+}
+
+static int crypto_xz_compress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static int crypto_xz_decompress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ struct xz_comp_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct xz_buf *xz_buf = &dctx->decomp_buf;
+ int ret;
+
+ memset(xz_buf, '\0', sizeof(struct xz_buf));
+
+ xz_buf->in = (u8 *) src;
+ xz_buf->in_pos = 0;
+ xz_buf->in_size = slen;
+ xz_buf->out = (u8 *) dst;
+ xz_buf->out_pos = 0;
+ xz_buf->out_size = *dlen;
+
+ ret = xz_dec_run(dctx->decomp_state, xz_buf);
+ if (ret != XZ_STREAM_END) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ *dlen = xz_buf->out_pos;
+ ret = 0;
+
+out:
+ return ret;
+}
+
+static struct crypto_alg crypto_xz_alg = {
+ .cra_name = "xz",
+ .cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
+ .cra_ctxsize = sizeof(struct xz_comp_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(crypto_xz_alg.cra_list),
+ .cra_init = crypto_xz_init,
+ .cra_exit = crypto_xz_exit,
+ .cra_u = { .compress = {
+ .coa_compress = crypto_xz_compress,
+ .coa_decompress = crypto_xz_decompress } }
+};
+
+static int __init crypto_xz_mod_init(void)
+{
+ return crypto_register_alg(&crypto_xz_alg);
+}
+
+static void __exit crypto_xz_mod_exit(void)
+{
+ crypto_unregister_alg(&crypto_xz_alg);
+}
+
+module_init(crypto_xz_mod_init);
+module_exit(crypto_xz_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Crypto XZ decompression support");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");

92
target/linux/generic/patches-3.18/541-ubifs-xz-decompression-support.patch
View file

@ -1,92 +0,0 @@
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -5,8 +5,10 @@ config UBIFS_FS
select CRYPTO if UBIFS_FS_ADVANCED_COMPR
select CRYPTO if UBIFS_FS_LZO
select CRYPTO if UBIFS_FS_ZLIB
+ select CRYPTO if UBIFS_FS_XZ
select CRYPTO_LZO if UBIFS_FS_LZO
select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
+ select CRYPTO_XZ if UBIFS_FS_XZ
depends on MTD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.
@@ -35,3 +37,12 @@ config UBIFS_FS_ZLIB
default y
help
Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
+
+config UBIFS_FS_XZ
+ bool "XZ decompression support" if UBIFS_FS_ADVANCED_COMPR
+ depends on UBIFS_FS
+ default y
+ help
+ XZ compresses better the ZLIB but it is slower..
+ Say 'Y' if unsure.
+
--- a/fs/ubifs/compress.c
+++ b/fs/ubifs/compress.c
@@ -71,6 +71,24 @@ static struct ubifs_compressor zlib_comp
};
#endif
+#ifdef CONFIG_UBIFS_FS_XZ
+static DEFINE_MUTEX(xz_enc_mutex);
+static DEFINE_MUTEX(xz_dec_mutex);
+
+static struct ubifs_compressor xz_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .comp_mutex = &xz_enc_mutex,
+ .decomp_mutex = &xz_dec_mutex,
+ .name = "xz",
+ .capi_name = "xz",
+};
+#else
+static struct ubifs_compressor xz_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .name = "xz",
+};
+#endif
+
/* All UBIFS compressors */
struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT];
@@ -232,9 +250,15 @@ int __init ubifs_compressors_init(void)
if (err)
goto out_lzo;
+ err = compr_init(&xz_compr);
+ if (err)
+ goto out_zlib;
+
ubifs_compressors[UBIFS_COMPR_NONE] = &none_compr;
return 0;
+out_zlib:
+ compr_exit(&zlib_compr);
out_lzo:
compr_exit(&lzo_compr);
return err;
@@ -247,4 +271,5 @@ void ubifs_compressors_exit(void)
{
compr_exit(&lzo_compr);
compr_exit(&zlib_compr);
+ compr_exit(&xz_compr);
}
--- a/fs/ubifs/ubifs-media.h
+++ b/fs/ubifs/ubifs-media.h
@@ -332,12 +332,14 @@ enum {
* UBIFS_COMPR_NONE: no compression
* UBIFS_COMPR_LZO: LZO compression
* UBIFS_COMPR_ZLIB: ZLIB compression
+ * UBIFS_COMPR_XZ: XZ compression
* UBIFS_COMPR_TYPES_CNT: count of supported compression types
*/
enum {
UBIFS_COMPR_NONE,
UBIFS_COMPR_LZO,
UBIFS_COMPR_ZLIB,
+ UBIFS_COMPR_XZ,
UBIFS_COMPR_TYPES_CNT,
};

146
target/linux/generic/patches-4.1/540-crypto-xz-decompression-support.patch
View file

@ -1,146 +0,0 @@
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1435,6 +1435,13 @@ config CRYPTO_LZ4HC
help
This is the LZ4 high compression mode algorithm.
+config CRYPTO_XZ
+ tristate "XZ compression algorithm"
+ select CRYPTO_ALGAPI
+ select XZ_DEC
+ help
+ This is the XZ algorithm. Only decompression is supported for now.
+
comment "Random Number Generation"
config CRYPTO_ANSI_CPRNG
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -89,6 +89,7 @@ obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.
obj-$(CONFIG_CRYPTO_LZO) += lzo.o
obj-$(CONFIG_CRYPTO_LZ4) += lz4.o
obj-$(CONFIG_CRYPTO_LZ4HC) += lz4hc.o
+obj-$(CONFIG_CRYPTO_XZ) += xz.o
obj-$(CONFIG_CRYPTO_842) += 842.o
obj-$(CONFIG_CRYPTO_RNG2) += rng.o
obj-$(CONFIG_CRYPTO_RNG2) += krng.o
--- /dev/null
+++ b/crypto/xz.c
@@ -0,0 +1,117 @@
+/*
+ * Cryptographic API.
+ *
+ * XZ decompression support.
+ *
+ * Copyright (c) 2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/xz.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/net.h>
+
+struct xz_comp_ctx {
+ struct xz_dec *decomp_state;
+ struct xz_buf decomp_buf;
+};
+
+static int crypto_xz_decomp_init(struct xz_comp_ctx *ctx)
+{
+ ctx->decomp_state = xz_dec_init(XZ_SINGLE, 0);
+ if (!ctx->decomp_state)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void crypto_xz_decomp_exit(struct xz_comp_ctx *ctx)
+{
+ xz_dec_end(ctx->decomp_state);
+}
+
+static int crypto_xz_init(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ return crypto_xz_decomp_init(ctx);
+}
+
+static void crypto_xz_exit(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_xz_decomp_exit(ctx);
+}
+
+static int crypto_xz_compress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static int crypto_xz_decompress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ struct xz_comp_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct xz_buf *xz_buf = &dctx->decomp_buf;
+ int ret;
+
+ memset(xz_buf, '\0', sizeof(struct xz_buf));
+
+ xz_buf->in = (u8 *) src;
+ xz_buf->in_pos = 0;
+ xz_buf->in_size = slen;
+ xz_buf->out = (u8 *) dst;
+ xz_buf->out_pos = 0;
+ xz_buf->out_size = *dlen;
+
+ ret = xz_dec_run(dctx->decomp_state, xz_buf);
+ if (ret != XZ_STREAM_END) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ *dlen = xz_buf->out_pos;
+ ret = 0;
+
+out:
+ return ret;
+}
+
+static struct crypto_alg crypto_xz_alg = {
+ .cra_name = "xz",
+ .cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
+ .cra_ctxsize = sizeof(struct xz_comp_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(crypto_xz_alg.cra_list),
+ .cra_init = crypto_xz_init,
+ .cra_exit = crypto_xz_exit,
+ .cra_u = { .compress = {
+ .coa_compress = crypto_xz_compress,
+ .coa_decompress = crypto_xz_decompress } }
+};
+
+static int __init crypto_xz_mod_init(void)
+{
+ return crypto_register_alg(&crypto_xz_alg);
+}
+
+static void __exit crypto_xz_mod_exit(void)
+{
+ crypto_unregister_alg(&crypto_xz_alg);
+}
+
+module_init(crypto_xz_mod_init);
+module_exit(crypto_xz_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Crypto XZ decompression support");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");

92
target/linux/generic/patches-4.1/541-ubifs-xz-decompression-support.patch
View file

@ -1,92 +0,0 @@
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -5,8 +5,10 @@ config UBIFS_FS
select CRYPTO if UBIFS_FS_ADVANCED_COMPR
select CRYPTO if UBIFS_FS_LZO
select CRYPTO if UBIFS_FS_ZLIB
+ select CRYPTO if UBIFS_FS_XZ
select CRYPTO_LZO if UBIFS_FS_LZO
select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
+ select CRYPTO_XZ if UBIFS_FS_XZ
depends on MTD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.
@@ -35,3 +37,12 @@ config UBIFS_FS_ZLIB
default y
help
Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
+
+config UBIFS_FS_XZ
+ bool "XZ decompression support" if UBIFS_FS_ADVANCED_COMPR
+ depends on UBIFS_FS
+ default y
+ help
+ XZ compresses better the ZLIB but it is slower..
+ Say 'Y' if unsure.
+
--- a/fs/ubifs/compress.c
+++ b/fs/ubifs/compress.c
@@ -71,6 +71,24 @@ static struct ubifs_compressor zlib_comp
};
#endif
+#ifdef CONFIG_UBIFS_FS_XZ
+static DEFINE_MUTEX(xz_enc_mutex);
+static DEFINE_MUTEX(xz_dec_mutex);
+
+static struct ubifs_compressor xz_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .comp_mutex = &xz_enc_mutex,
+ .decomp_mutex = &xz_dec_mutex,
+ .name = "xz",
+ .capi_name = "xz",
+};
+#else
+static struct ubifs_compressor xz_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .name = "xz",
+};
+#endif
+
/* All UBIFS compressors */
struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT];
@@ -232,9 +250,15 @@ int __init ubifs_compressors_init(void)
if (err)
goto out_lzo;
+ err = compr_init(&xz_compr);
+ if (err)
+ goto out_zlib;
+
ubifs_compressors[UBIFS_COMPR_NONE] = &none_compr;
return 0;
+out_zlib:
+ compr_exit(&zlib_compr);
out_lzo:
compr_exit(&lzo_compr);
return err;
@@ -247,4 +271,5 @@ void ubifs_compressors_exit(void)
{
compr_exit(&lzo_compr);
compr_exit(&zlib_compr);
+ compr_exit(&xz_compr);
}
--- a/fs/ubifs/ubifs-media.h
+++ b/fs/ubifs/ubifs-media.h
@@ -332,12 +332,14 @@ enum {
* UBIFS_COMPR_NONE: no compression
* UBIFS_COMPR_LZO: LZO compression
* UBIFS_COMPR_ZLIB: ZLIB compression
+ * UBIFS_COMPR_XZ: XZ compression
* UBIFS_COMPR_TYPES_CNT: count of supported compression types
*/
enum {
UBIFS_COMPR_NONE,
UBIFS_COMPR_LZO,
UBIFS_COMPR_ZLIB,
+ UBIFS_COMPR_XZ,
UBIFS_COMPR_TYPES_CNT,
};

146
target/linux/generic/patches-4.4/540-crypto-xz-decompression-support.patch
View file

@ -1,146 +0,0 @@
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1544,6 +1544,13 @@ config CRYPTO_LZ4HC
help
This is the LZ4 high compression mode algorithm.
+config CRYPTO_XZ
+ tristate "XZ compression algorithm"
+ select CRYPTO_ALGAPI
+ select XZ_DEC
+ help
+ This is the XZ algorithm. Only decompression is supported for now.
+
comment "Random Number Generation"
config CRYPTO_ANSI_CPRNG
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.
obj-$(CONFIG_CRYPTO_LZO) += lzo.o
obj-$(CONFIG_CRYPTO_LZ4) += lz4.o
obj-$(CONFIG_CRYPTO_LZ4HC) += lz4hc.o
+obj-$(CONFIG_CRYPTO_XZ) += xz.o
obj-$(CONFIG_CRYPTO_842) += 842.o
obj-$(CONFIG_CRYPTO_RNG2) += rng.o
obj-$(CONFIG_CRYPTO_ANSI_CPRNG) += ansi_cprng.o
--- /dev/null
+++ b/crypto/xz.c
@@ -0,0 +1,117 @@
+/*
+ * Cryptographic API.
+ *
+ * XZ decompression support.
+ *
+ * Copyright (c) 2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/xz.h>
+#include <linux/interrupt.h>
+#include <linux/mm.h>
+#include <linux/net.h>
+
+struct xz_comp_ctx {
+ struct xz_dec *decomp_state;
+ struct xz_buf decomp_buf;
+};
+
+static int crypto_xz_decomp_init(struct xz_comp_ctx *ctx)
+{
+ ctx->decomp_state = xz_dec_init(XZ_SINGLE, 0);
+ if (!ctx->decomp_state)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void crypto_xz_decomp_exit(struct xz_comp_ctx *ctx)
+{
+ xz_dec_end(ctx->decomp_state);
+}
+
+static int crypto_xz_init(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ return crypto_xz_decomp_init(ctx);
+}
+
+static void crypto_xz_exit(struct crypto_tfm *tfm)
+{
+ struct xz_comp_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_xz_decomp_exit(ctx);
+}
+
+static int crypto_xz_compress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ return -EOPNOTSUPP;
+}
+
+static int crypto_xz_decompress(struct crypto_tfm *tfm, const u8 *src,
+ unsigned int slen, u8 *dst, unsigned int *dlen)
+{
+ struct xz_comp_ctx *dctx = crypto_tfm_ctx(tfm);
+ struct xz_buf *xz_buf = &dctx->decomp_buf;
+ int ret;
+
+ memset(xz_buf, '\0', sizeof(struct xz_buf));
+
+ xz_buf->in = (u8 *) src;
+ xz_buf->in_pos = 0;
+ xz_buf->in_size = slen;
+ xz_buf->out = (u8 *) dst;
+ xz_buf->out_pos = 0;
+ xz_buf->out_size = *dlen;
+
+ ret = xz_dec_run(dctx->decomp_state, xz_buf);
+ if (ret != XZ_STREAM_END) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ *dlen = xz_buf->out_pos;
+ ret = 0;
+
+out:
+ return ret;
+}
+
+static struct crypto_alg crypto_xz_alg = {
+ .cra_name = "xz",
+ .cra_flags = CRYPTO_ALG_TYPE_COMPRESS,
+ .cra_ctxsize = sizeof(struct xz_comp_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(crypto_xz_alg.cra_list),
+ .cra_init = crypto_xz_init,
+ .cra_exit = crypto_xz_exit,
+ .cra_u = { .compress = {
+ .coa_compress = crypto_xz_compress,
+ .coa_decompress = crypto_xz_decompress } }
+};
+
+static int __init crypto_xz_mod_init(void)
+{
+ return crypto_register_alg(&crypto_xz_alg);
+}
+
+static void __exit crypto_xz_mod_exit(void)
+{
+ crypto_unregister_alg(&crypto_xz_alg);
+}
+
+module_init(crypto_xz_mod_init);
+module_exit(crypto_xz_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Crypto XZ decompression support");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");

94
target/linux/generic/patches-4.4/541-ubifs-xz-decompression-support.patch
View file

@ -1,94 +0,0 @@
--- a/fs/ubifs/Kconfig
+++ b/fs/ubifs/Kconfig
@@ -5,8 +5,10 @@ config UBIFS_FS
select CRYPTO if UBIFS_FS_ADVANCED_COMPR
select CRYPTO if UBIFS_FS_LZO
select CRYPTO if UBIFS_FS_ZLIB
+ select CRYPTO if UBIFS_FS_XZ
select CRYPTO_LZO if UBIFS_FS_LZO
select CRYPTO_DEFLATE if UBIFS_FS_ZLIB
+ select CRYPTO_XZ if UBIFS_FS_XZ
depends on MTD_UBI
help
UBIFS is a file system for flash devices which works on top of UBI.
@@ -36,6 +38,14 @@ config UBIFS_FS_ZLIB
help
Zlib compresses better than LZO but it is slower. Say 'Y' if unsure.
+config UBIFS_FS_XZ
+ bool "XZ decompression support" if UBIFS_FS_ADVANCED_COMPR
+ depends on UBIFS_FS
+ default y
+ help
+ XZ compresses better the ZLIB but it is slower..
+ Say 'Y' if unsure.
+
config UBIFS_ATIME_SUPPORT
bool "Access time support" if UBIFS_FS
depends on UBIFS_FS
--- a/fs/ubifs/compress.c
+++ b/fs/ubifs/compress.c
@@ -71,6 +71,24 @@ static struct ubifs_compressor zlib_comp
};
#endif
+#ifdef CONFIG_UBIFS_FS_XZ
+static DEFINE_MUTEX(xz_enc_mutex);
+static DEFINE_MUTEX(xz_dec_mutex);
+
+static struct ubifs_compressor xz_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .comp_mutex = &xz_enc_mutex,
+ .decomp_mutex = &xz_dec_mutex,
+ .name = "xz",
+ .capi_name = "xz",
+};
+#else
+static struct ubifs_compressor xz_compr = {
+ .compr_type = UBIFS_COMPR_XZ,
+ .name = "xz",
+};
+#endif
+
/* All UBIFS compressors */
struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT];
@@ -232,9 +250,15 @@ int __init ubifs_compressors_init(void)
if (err)
goto out_lzo;
+ err = compr_init(&xz_compr);
+ if (err)
+ goto out_zlib;
+
ubifs_compressors[UBIFS_COMPR_NONE] = &none_compr;
return 0;
+out_zlib:
+ compr_exit(&zlib_compr);
out_lzo:
compr_exit(&lzo_compr);
return err;
@@ -247,4 +271,5 @@ void ubifs_compressors_exit(void)
{
compr_exit(&lzo_compr);
compr_exit(&zlib_compr);
+ compr_exit(&xz_compr);
}
--- a/fs/ubifs/ubifs-media.h
+++ b/fs/ubifs/ubifs-media.h
@@ -332,12 +332,14 @@ enum {
* UBIFS_COMPR_NONE: no compression
* UBIFS_COMPR_LZO: LZO compression
* UBIFS_COMPR_ZLIB: ZLIB compression
+ * UBIFS_COMPR_XZ: XZ compression
* UBIFS_COMPR_TYPES_CNT: count of supported compression types
*/
enum {
UBIFS_COMPR_NONE,
UBIFS_COMPR_LZO,
UBIFS_COMPR_ZLIB,
+ UBIFS_COMPR_XZ,
UBIFS_COMPR_TYPES_CNT,
};

2
target/linux/imx6/config-4.4
View file

@ -110,7 +110,6 @@ CONFIG_CRYPTO_SHA256_ARM=y
# CONFIG_CRYPTO_SHA2_ARM_CE is not set
CONFIG_CRYPTO_SHA512_ARM=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DEBUG_IMX_UART_PORT=1
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
@ -400,7 +399,6 @@ CONFIG_TREE_RCU=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
# CONFIG_USB_MXS_PHY is not set

2
target/linux/ipq806x/config-4.4
View file

@ -108,7 +108,6 @@ CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DEBUG_GPIO=y
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
@ -406,7 +405,6 @@ CONFIG_TREE_RCU=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
# CONFIG_UBIFS_FS_XZ is not set
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"

1
target/linux/kirkwood/config-4.4
View file

@ -298,7 +298,6 @@ CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
# CONFIG_UBIFS_FS_XZ is not set
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
CONFIG_USB=y

1
target/linux/lantiq/xrx200/config-default
View file

@ -41,7 +41,6 @@ CONFIG_SWCONFIG_LEDS=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
# CONFIG_UBIFS_FS_XZ is not set
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_USB=y
CONFIG_USB_COMMON=y

1
target/linux/lantiq/xway/config-default
View file

@ -60,7 +60,6 @@ CONFIG_SYS_SUPPORTS_MIPS16=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
# CONFIG_UBIFS_FS_XZ is not set
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_USB=y
CONFIG_USB_COMMON=y

1
target/linux/layerscape/32b/config-default
View file

@ -63,7 +63,6 @@ CONFIG_CPU_TLB_V7=y
CONFIG_CPU_V7=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_XZ=y
CONFIG_DEBUG_IMX_UART_PORT=1
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
# CONFIG_DEBUG_UART_8250 is not set

2
target/linux/mediatek/config-4.4
View file

@ -102,7 +102,6 @@ CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_GPIO=y
@ -388,7 +387,6 @@ CONFIG_TIMER_STATS=y
CONFIG_UBIFS_FS=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UEVENT_HELPER_PATH=""
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"

2
target/linux/mvebu/config-4.4
View file

@ -126,7 +126,6 @@ CONFIG_CRYPTO_SHA256_ARM=y
# CONFIG_CRYPTO_SHA2_ARM_CE is not set
CONFIG_CRYPTO_SHA512_ARM=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_LL=y
@ -406,7 +405,6 @@ CONFIG_TREE_RCU=y
CONFIG_UBIFS_FS=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
CONFIG_USB=y

2
target/linux/omap/config-4.4
View file

@ -141,7 +141,6 @@ CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DDR=y
CONFIG_DEBUG_GPIO=y
@ -649,7 +648,6 @@ CONFIG_TWL6040_CORE=y
CONFIG_UBIFS_FS=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
CONFIG_UNINLINE_SPIN_UNLOCK=y

2
target/linux/oxnas/config-4.4
View file

@ -89,7 +89,6 @@ CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DEBUG_ICEDCC=y
CONFIG_DEBUG_LL=y
@ -345,7 +344,6 @@ CONFIG_TREE_RCU=y
CONFIG_UBIFS_FS=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNCOMPRESS_INCLUDE="mach/uncompress.h"
CONFIG_USB=y

1
target/linux/ramips/mt7621/config-4.4
View file

@ -256,7 +256,6 @@ CONFIG_TREE_RCU=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
# CONFIG_UBIFS_FS_XZ is not set
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_USB_SUPPORT=y
CONFIG_USE_OF=y

2
target/linux/rb532/config-4.4
View file

@ -39,7 +39,6 @@ CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_WORKQUEUE=y
CONFIG_CRYPTO_XZ=y
CONFIG_CSRC_R4K=y
CONFIG_DMA_NONCOHERENT=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
@ -178,7 +177,6 @@ CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_UBIFS_FS=y
# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_VIA_RHINE=y
CONFIG_VIA_RHINE_MMIO=y

2
target/linux/xburst/config-3.18
View file

@ -40,7 +40,6 @@ CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_XZ=y
CONFIG_DMADEVICES=y
CONFIG_DMA_ENGINE=y
CONFIG_DMA_JZ4740=y
@ -316,7 +315,6 @@ CONFIG_TREE_PREEMPT_RCU=y
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_FS_LZO=y
CONFIG_UBIFS_FS_XZ=y
CONFIG_UBIFS_FS_ZLIB=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_USB=y

2
tools/Makefile
View file

@ -52,7 +52,7 @@ $(curdir)/automake/compile := $(curdir)/m4/install $(curdir)/autoconf/install $(
$(curdir)/gmp/compile := $(curdir)/libtool/install
$(curdir)/mpc/compile := $(curdir)/mpfr/install $(curdir)/gmp/install
$(curdir)/mpfr/compile := $(curdir)/gmp/install
$(curdir)/mtd-utils/compile := $(curdir)/e2fsprogs/install $(curdir)/xz/install
$(curdir)/mtd-utils/compile := $(curdir)/e2fsprogs/install
$(curdir)/mkimage/compile := $(curdir)/sed/install
$(curdir)/mklibs/compile := $(curdir)/libtool/install
$(curdir)/qemu/compile := $(curdir)/e2fsprogs/install

378
tools/mtd-utils/patches/136-mkfs.ubifs-xz-support.patch
View file

@ -1,378 +0,0 @@
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@
VERSION = 1.5.2
CPPFLAGS += -D_GNU_SOURCE -I./include -I$(BUILDDIR)/include -I./ubi-utils/include $(ZLIBCPPFLAGS) $(LZOCPPFLAGS) $(UUIDCPPFLAGS)
-CPPFLAGS += -I./include/linux/lzma
+CPPFLAGS += $(XZCPPFLAGS) -I./include/linux/lzma
ifeq ($(WITHOUT_XATTR), 1)
CPPFLAGS += -DWITHOUT_XATTR
@@ -113,8 +113,13 @@ ifeq ($(WITHOUT_LZO), 1)
else
LZOLDLIBS = -llzo2
endif
+ifeq ($(WITHOUT_XZ), 1)
+ CPPFLAGS += -DWITHOUT_XZ
+else
+ XZLDLIBS = -llzma
+endif
-LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) -lm -luuid
+LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) $(XZLDLIBS) -lm -luuid
$(call mkdep,mkfs.ubifs/,mkfs.ubifs,,ubi-utils/libubi.a)
#
--- a/mkfs.ubifs/compr.c
+++ b/mkfs.ubifs/compr.c
@@ -126,6 +126,114 @@ static inline int lzo_init(void) { retur
static inline void lzo_fini(void) { }
#endif
+#ifndef WITHOUT_XZ
+
+#include <lzma.h>
+
+struct xz_ctx {
+ lzma_filter filters[3];
+ lzma_options_lzma opts;
+};
+
+static struct xz_ctx *xz_ctx;
+
+#define LZMA_COMPRESSION_LEVEL 9
+
+static struct xz_ctx *xz_ctx_init(void)
+{
+ struct xz_ctx *ctx;
+ lzma_options_lzma *opts_lzma;
+ uint32_t preset;
+ int ret;
+
+ ctx = malloc(sizeof(struct xz_ctx));
+ if (ctx == NULL)
+ goto err;
+
+ memset(ctx, 0, sizeof(struct xz_ctx));
+
+ opts_lzma = &ctx->opts;
+
+ preset = LZMA_COMPRESSION_LEVEL | LZMA_PRESET_EXTREME;
+ ret = lzma_lzma_preset(opts_lzma, preset);
+ if (ret)
+ goto err_free_ctx;
+
+ /* TODO: allow to specify LZMA options via command line */
+#if 0
+ opts_lzma->lc = 3;
+ opts_lzma->lp = 0;
+ opts_lzma->pb = 2;
+ opts_lzma->nice_len = 64;
+#else
+ opts_lzma->lc = 0;
+ opts_lzma->lp = 2;
+ opts_lzma->pb = 2;
+ opts_lzma->nice_len = 64;
+#endif
+
+ ctx->filters[0].id = LZMA_FILTER_LZMA2;
+ ctx->filters[0].options = opts_lzma;
+ ctx->filters[1].id = LZMA_VLI_UNKNOWN;
+
+ return ctx;
+
+err_free_ctx:
+ free(ctx);
+err:
+ return NULL;
+}
+
+static void xz_ctx_free(struct xz_ctx *ctx)
+{
+ free(ctx);
+}
+
+static int xz_init(void)
+{
+ xz_ctx = xz_ctx_init();
+ if (xz_ctx == NULL)
+ return -1;
+
+ return 0;
+}
+
+static void xz_fini(void)
+{
+ xz_ctx_free(xz_ctx);
+}
+
+static int xz_compress(void *in_buf, size_t in_len, void *out_buf,
+ size_t *out_len)
+{
+ size_t ret_len;
+ lzma_ret ret_xz;
+ int ret;
+
+ ret = -1;
+
+ ret_len = 0;
+ ret_xz = lzma_stream_buffer_encode(xz_ctx->filters, LZMA_CHECK_CRC32,
+ NULL, in_buf, in_len, out_buf,
+ &ret_len, *out_len);
+ if (ret_xz != LZMA_OK) {
+ fprintf(stderr, "XZ error: %d\n", (int) ret_xz);
+ goto out;
+ }
+
+ *out_len = ret_len;
+
+ ret = 0;
+out:
+ return ret;
+}
+#else
+static inline int xz_init(void) { return 0; }
+static inline void xz_fini(void) { }
+static inline int xz_compress(void *in_buf, size_t in_len, void *out_buf,
+ size_t *out_len) { return -1; }
+#endif
+
static int no_compress(void *in_buf, size_t in_len, void *out_buf,
size_t *out_len)
{
@@ -198,6 +306,9 @@ int compress_data(void *in_buf, size_t i
case MKFS_UBIFS_COMPR_LZO:
ret = lzo_compress(in_buf, in_len, out_buf, out_len);
break;
+ case MKFS_UBIFS_COMPR_XZ:
+ ret = xz_compress(in_buf, in_len, out_buf, out_len);
+ break;
case MKFS_UBIFS_COMPR_ZLIB:
ret = zlib_deflate(in_buf, in_len, out_buf, out_len);
break;
@@ -225,12 +336,18 @@ int init_compression(void)
if (ret)
goto err;
+ ret = xz_init();
+ if (ret)
+ goto err_lzo;
+
zlib_buf = malloc(UBIFS_BLOCK_SIZE * WORST_COMPR_FACTOR);
if (!zlib_buf)
- goto err_lzo;
+ goto err_xz;
return 0;
+err_xz:
+ xz_fini();
err_lzo:
lzo_fini();
err:
@@ -240,6 +357,7 @@ err:
void destroy_compression(void)
{
free(zlib_buf);
+ xz_fini();
lzo_fini();
if (errcnt)
fprintf(stderr, "%llu compression errors occurred\n", errcnt);
--- a/mkfs.ubifs/compr.h
+++ b/mkfs.ubifs/compr.h
@@ -36,6 +36,7 @@ enum compression_type
MKFS_UBIFS_COMPR_NONE,
MKFS_UBIFS_COMPR_LZO,
MKFS_UBIFS_COMPR_ZLIB,
+ MKFS_UBIFS_COMPR_XZ,
};
int compress_data(void *in_buf, size_t in_len, void *out_buf, size_t *out_len,
--- a/mkfs.ubifs/mkfs.ubifs.c
+++ b/mkfs.ubifs/mkfs.ubifs.c
@@ -99,6 +99,9 @@ struct ubifs_info info_;
static struct ubifs_info *c = &info_;
static libubi_t ubi;
+static int force_compr_set;
+static int force_compr;
+
/* Debug levels are: 0 (none), 1 (statistics), 2 (files) ,3 (more details) */
int debug_level;
int verbose;
@@ -133,7 +136,7 @@ static struct inum_mapping **hash_table;
/* Inode creation sequence number */
static unsigned long long creat_sqnum;
-static const char *optstring = "d:r:m:o:D:yh?vVe:c:g:f:Fp:k:x:X:j:R:l:j:UQq";
+static const char *optstring = "d:r:m:o:D:yh?vVe:c:g:f:Fp:k:x:X:z:j:R:l:j:UQq";
static const struct option longopts[] = {
{"root", 1, NULL, 'r'},
@@ -151,6 +154,7 @@ static const struct option longopts[] =
{"reserved", 1, NULL, 'R'},
{"compr", 1, NULL, 'x'},
{"favor-percent", 1, NULL, 'X'},
+ {"force-compr", 1, NULL, 'z'},
{"fanout", 1, NULL, 'f'},
{"space-fixup", 0, NULL, 'F'},
{"keyhash", 1, NULL, 'k'},
@@ -178,11 +182,13 @@ static const char *helptext =
"-o, --output=FILE output to FILE\n"
"-j, --jrn-size=SIZE journal size\n"
"-R, --reserved=SIZE how much space should be reserved for the super-user\n"
-"-x, --compr=TYPE compression type - \"lzo\", \"favor_lzo\", \"zlib\" or\n"
-" \"none\" (default: \"lzo\")\n"
+"-x, --compr=TYPE default compression type - \"lzo\", \"favor_lzo\",\n"
+" \"zlib\" or \"none\" (default: \"lzo\")\n"
"-X, --favor-percent may only be used with favor LZO compression and defines\n"
" how many percent better zlib should compress to make\n"
" mkfs.ubifs use zlib instead of LZO (default 20%)\n"
+"-z, --force-compr=TYPE force to build the fs with different compression -\n"
+" \"lzo\", \"zlib\" or \"none\"\n"
"-f, --fanout=NUM fanout NUM (default: 8)\n"
"-F, --space-fixup file-system free space has to be fixed up on first mount\n"
" (requires kernel version 3.0 or greater)\n"
@@ -472,6 +478,43 @@ static int open_ubi(const char *node)
return 0;
}
+static const char *get_compr_str(int compr)
+{
+ switch (compr) {
+ case UBIFS_COMPR_LZO:
+ return "lzo";
+ case UBIFS_COMPR_ZLIB:
+ return "zlib";
+ case UBIFS_COMPR_XZ:
+ return "xz";
+ case UBIFS_COMPR_NONE:
+ return "none";
+ }
+
+ return "unknown";
+}
+
+static int get_compr_option(char *opt, int *compr_type, int *favor_lzo)
+{
+ *compr_type = UBIFS_COMPR_LZO;
+
+ if (favor_lzo)
+ *favor_lzo = 0;
+
+ if (favor_lzo && strcmp(optarg, "favor_lzo") == 0)
+ *favor_lzo = 1;
+ else if (strcmp(optarg, "zlib") == 0)
+ *compr_type = UBIFS_COMPR_ZLIB;
+ else if (strcmp(optarg, "xz") == 0)
+ *compr_type = UBIFS_COMPR_XZ;
+ else if (strcmp(optarg, "none") == 0)
+ *compr_type = UBIFS_COMPR_NONE;
+ else if (strcmp(optarg, "lzo") != 0)
+ return -1;
+
+ return 0;
+}
+
static int get_options(int argc, char**argv)
{
int opt, i;
@@ -594,14 +637,13 @@ static int get_options(int argc, char**a
return err_msg("bad key hash");
break;
case 'x':
- if (strcmp(optarg, "favor_lzo") == 0)
- c->favor_lzo = 1;
- else if (strcmp(optarg, "zlib") == 0)
- c->default_compr = UBIFS_COMPR_ZLIB;
- else if (strcmp(optarg, "none") == 0)
- c->default_compr = UBIFS_COMPR_NONE;
- else if (strcmp(optarg, "lzo") != 0)
- return err_msg("bad compressor name");
+ if (get_compr_option(optarg, &c->default_compr,
+ &c->favor_lzo))
+ return err_msg("bad compressor name '%s'",
+ optarg);
+ if (c->default_compr == UBIFS_COMPR_XZ)
+ return err_msg("'%s' can't be used as default compressor",
+ optarg);
break;
case 'X':
c->favor_percent = strtol(optarg, &endp, 0);
@@ -610,6 +652,12 @@ static int get_options(int argc, char**a
return err_msg("bad favor LZO percent '%s'",
optarg);
break;
+ case 'z':
+ if (get_compr_option(optarg, &force_compr, NULL))
+ return err_msg("bad forced compressor name '%s'",
+ optarg);
+ force_compr_set = 1;
+ break;
case 'j':
c->max_bud_bytes = get_bytes(optarg);
if (c->max_bud_bytes <= 0)
@@ -684,6 +732,9 @@ static int get_options(int argc, char**a
c->min_io_size = 8;
c->rp_size = add_space_overhead(c->rp_size);
+ if (force_compr_set == 0)
+ force_compr = c->default_compr;
+
if (verbose) {
printf("mkfs.ubifs\n");
printf("\troot: %s\n", root);
@@ -693,17 +744,10 @@ static int get_options(int argc, char**a
printf("\toutput: %s\n", output);
printf("\tjrn_size: %llu\n", c->max_bud_bytes);
printf("\treserved: %llu\n", c->rp_size);
- switch (c->default_compr) {
- case UBIFS_COMPR_LZO:
- printf("\tcompr: lzo\n");
- break;
- case UBIFS_COMPR_ZLIB:
- printf("\tcompr: zlib\n");
- break;
- case UBIFS_COMPR_NONE:
- printf("\tcompr: none\n");
- break;
- }
+ printf("\tcompr: %s\n", get_compr_str(c->default_compr));
+ if (force_compr_set)
+ printf("\tforced compr: %s\n",
+ get_compr_str(force_compr));
printf("\tkeyhash: %s\n", (c->key_hash == key_r5_hash) ?
"r5" : "test");
printf("\tfanout: %d\n", c->fanout);
@@ -1284,7 +1328,7 @@ static int add_file(const char *path_nam
use_compr = UBIFS_COMPR_LZO;
else
#endif
- use_compr = c->default_compr;
+ use_compr = force_compr;
compr_type = compress_data(buf, bytes_read, &dn->data,
&out_len, use_compr);
dn->compr_type = cpu_to_le16(compr_type);
--- a/mkfs.ubifs/mkfs.ubifs.h
+++ b/mkfs.ubifs/mkfs.ubifs.h
@@ -83,6 +83,9 @@
#if MKFS_UBIFS_COMPR_ZLIB != UBIFS_COMPR_ZLIB
#error MKFS_UBIFS_COMPR_ZLIB != UBIFS_COMPR_ZLIB
#endif
+#if MKFS_UBIFS_COMPR_XZ != UBIFS_COMPR_XZ
+#error MKFS_UBIFS_COMPR_XZ != UBIFS_COMPR_XZ
+#endif
extern int verbose;
extern int debug_level;
--- a/include/mtd/ubifs-media.h
+++ b/include/mtd/ubifs-media.h
@@ -313,6 +313,7 @@ enum {
UBIFS_COMPR_NONE,
UBIFS_COMPR_LZO,
UBIFS_COMPR_ZLIB,
+ UBIFS_COMPR_XZ,
UBIFS_COMPR_TYPES_CNT,
};

8
tools/mtd-utils/patches/310-add-static-linking-option.patch
View file

@ -32,12 +32,12 @@
$(foreach v,$(MTD_BINS),$(eval $(call mkdep,,$(v))))
@@ -119,7 +119,7 @@ else
XZLDLIBS = -llzma
@@ -114,7 +114,7 @@ else
LZOLDLIBS = -llzo2
endif
-LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) $(XZLDLIBS) -lm -luuid
+LDLIBS_mkfs.ubifs = $(call static_link,-lz $(LZOLDLIBS) $(XZLDLIBS)) -lm $(call static_link,-luuid)
-LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) -lm -luuid
+LDLIBS_mkfs.ubifs = $(call static_link,-lz $(LZOLDLIBS)) -lm $(call static_link,-luuid)
$(call mkdep,mkfs.ubifs/,mkfs.ubifs,,ubi-utils/libubi.a)
#