mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 08:21:14 +00:00
405 lines
11 KiB
Diff
405 lines
11 KiB
Diff
--- a/Makefile
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+++ b/Makefile
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@@ -1,7 +1,7 @@
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# -*- sh -*-
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-CPPFLAGS += -I./include $(ZLIBCPPFLAGS) $(LZOCPPFLAGS) -I./include/linux/lzma
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+CPPFLAGS += -I./include $(ZLIBCPPFLAGS) $(LZOCPPFLAGS) $(XZCPPFLAGS) -I./include/linux/lzma
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ifeq ($(WITHOUT_XATTR), 1)
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CPPFLAGS += -DWITHOUT_XATTR
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--- a/mkfs.ubifs/compr.c
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+++ b/mkfs.ubifs/compr.c
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@@ -127,6 +127,114 @@ static inline int lzo_init(void) { retur
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static inline void lzo_fini(void) { }
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#endif
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+#ifndef WITHOUT_XZ
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+
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+#include <lzma.h>
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+
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+struct xz_ctx {
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+ lzma_filter filters[3];
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+ lzma_options_lzma opts;
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+};
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+
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+static struct xz_ctx *xz_ctx;
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+
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+#define LZMA_COMPRESSION_LEVEL 9
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+
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+static struct xz_ctx *xz_ctx_init(void)
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+{
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+ struct xz_ctx *ctx;
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+ lzma_options_lzma *opts_lzma;
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+ uint32_t preset;
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+ int ret;
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+
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+ ctx = malloc(sizeof(struct xz_ctx));
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+ if (ctx == NULL)
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+ goto err;
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+
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+ memset(ctx, 0, sizeof(struct xz_ctx));
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+
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+ opts_lzma = &ctx->opts;
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+
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+ preset = LZMA_COMPRESSION_LEVEL | LZMA_PRESET_EXTREME;
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+ ret = lzma_lzma_preset(opts_lzma, preset);
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+ if (ret)
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+ goto err_free_ctx;
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+
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+ /* TODO: allow to specify LZMA options via command line */
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+#if 0
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+ opts_lzma->lc = 3;
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+ opts_lzma->lp = 0;
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+ opts_lzma->pb = 2;
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+ opts_lzma->nice_len = 64;
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+#else
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+ opts_lzma->lc = 0;
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+ opts_lzma->lp = 2;
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+ opts_lzma->pb = 2;
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+ opts_lzma->nice_len = 64;
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+#endif
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+
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+ ctx->filters[0].id = LZMA_FILTER_LZMA2;
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+ ctx->filters[0].options = opts_lzma;
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+ ctx->filters[1].id = LZMA_VLI_UNKNOWN;
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+
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+ return ctx;
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+
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+err_free_ctx:
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+ free(ctx);
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+err:
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+ return NULL;
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+}
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+
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+static void xz_ctx_free(struct xz_ctx *ctx)
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+{
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+ free(ctx);
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+}
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+
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+static int xz_init(void)
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+{
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+ xz_ctx = xz_ctx_init();
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+ if (xz_ctx == NULL)
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+ return -1;
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+
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+ return 0;
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+}
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+
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+static void xz_fini(void)
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+{
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+ xz_ctx_free(xz_ctx);
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+}
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+
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+static int xz_compress(void *in_buf, size_t in_len, void *out_buf,
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+ size_t *out_len)
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+{
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+ size_t ret_len;
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+ lzma_ret ret_xz;
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+ int ret;
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+
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+ ret = -1;
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+
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+ ret_len = 0;
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+ ret_xz = lzma_stream_buffer_encode(xz_ctx->filters, LZMA_CHECK_CRC32,
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+ NULL, in_buf, in_len, out_buf,
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+ &ret_len, *out_len);
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+ if (ret_xz != LZMA_OK) {
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+ fprintf(stderr, "XZ error: %d\n", (int) ret_xz);
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+ goto out;
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+ }
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+
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+ *out_len = ret_len;
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+
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+ ret = 0;
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+out:
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+ return ret;
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+}
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+#else
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+static inline int xz_init(void) { return 0; }
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+static inline void xz_fini(void) { }
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+static inline int xz_compress(void *in_buf, size_t in_len, void *out_buf,
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+ size_t *out_len) { return -1; }
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+#endif
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+
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static int no_compress(void *in_buf, size_t in_len, void *out_buf,
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size_t *out_len)
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{
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@@ -199,6 +307,9 @@ int compress_data(void *in_buf, size_t i
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case MKFS_UBIFS_COMPR_LZO:
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ret = lzo_compress(in_buf, in_len, out_buf, out_len);
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break;
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+ case MKFS_UBIFS_COMPR_XZ:
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+ ret = xz_compress(in_buf, in_len, out_buf, out_len);
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+ break;
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case MKFS_UBIFS_COMPR_ZLIB:
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ret = zlib_deflate(in_buf, in_len, out_buf, out_len);
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break;
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@@ -226,12 +337,18 @@ int init_compression(void)
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if (ret)
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goto err;
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+ ret = xz_init();
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+ if (ret)
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+ goto err_lzo;
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+
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zlib_buf = malloc(UBIFS_BLOCK_SIZE * WORST_COMPR_FACTOR);
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if (!zlib_buf)
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- goto err_lzo;
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+ goto err_xz;
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return 0;
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+err_xz:
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+ xz_fini();
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err_lzo:
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lzo_fini();
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err:
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@@ -241,6 +358,7 @@ err:
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void destroy_compression(void)
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{
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free(zlib_buf);
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+ xz_fini();
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lzo_fini();
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if (errcnt)
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fprintf(stderr, "%llu compression errors occurred\n", errcnt);
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--- a/mkfs.ubifs/compr.h
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+++ b/mkfs.ubifs/compr.h
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@@ -36,6 +36,7 @@ enum compression_type
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MKFS_UBIFS_COMPR_NONE,
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MKFS_UBIFS_COMPR_LZO,
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MKFS_UBIFS_COMPR_ZLIB,
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+ MKFS_UBIFS_COMPR_XZ,
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};
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int compress_data(void *in_buf, size_t in_len, void *out_buf, size_t *out_len,
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--- a/mkfs.ubifs/Makefile
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+++ b/mkfs.ubifs/Makefile
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@@ -6,21 +6,33 @@ ALL_SOURCES=*.[ch] hashtable/*.[ch]
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TARGETS = mkfs.ubifs
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+MKFS_UBIFS_OBJS = $(addprefix $(BUILDDIR)/,\
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+ crc16.o lpt.o compr.o devtable.o \
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+ hashtable/hashtable.o hashtable/hashtable_itr.o)
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+
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ifeq ($(WITHOUT_LZO), 1)
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CPPFLAGS += -DWITHOUT_LZO
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else
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LZOLDLIBS = -llzo2
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endif
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-LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) -lm -luuid -L$(BUILDDIR)/../ubi-utils/ -lubi
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+ifeq ($(WITHOUT_XZ), 1)
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+ CPPFLAGS += -DWITHOUT_XZ
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+else
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+ifneq ($(LZMA_STATIC_LIB),)
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+ MKFS_UBIFS_OBJS += $(LZMA_STATIC_LIB)
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+else
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+ XZLDLIBS = -llzma
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+endif
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+endif
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+
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+LDLIBS_mkfs.ubifs = -lz $(LZOLDLIBS) $(XZLDLIBS) -lm -luuid -L$(BUILDDIR)/../ubi-utils/ -lubi
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LDLIBS_mkfs.ubifs += -L$(BUILDDIR)/../lib -lmtd
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-LDLIBS_mkfs.ubifs += $(ZLIBLDFLAGS) $(LZOLDFLAGS)
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+LDLIBS_mkfs.ubifs += $(ZLIBLDFLAGS) $(LZOLDFLAGS) $(XZLDFLAGS)
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include ../common.mk
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-$(BUILDDIR)/mkfs.ubifs: $(addprefix $(BUILDDIR)/,\
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- crc16.o lpt.o compr.o devtable.o \
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- hashtable/hashtable.o hashtable/hashtable_itr.o)
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+$(BUILDDIR)/mkfs.ubifs: $(MKFS_UBIFS_OBJS)
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clean::
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rm -f $(BUILDDIR)/hashtable/*.o cscope.*
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--- a/mkfs.ubifs/mkfs.ubifs.c
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+++ b/mkfs.ubifs/mkfs.ubifs.c
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@@ -98,6 +98,9 @@ struct ubifs_info info_;
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static struct ubifs_info *c = &info_;
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static libubi_t ubi;
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+static int force_compr_set;
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+static int force_compr;
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+
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/* Debug levels are: 0 (none), 1 (statistics), 2 (files) ,3 (more details) */
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int debug_level;
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int verbose;
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@@ -132,7 +135,7 @@ static struct inum_mapping **hash_table;
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/* Inode creation sequence number */
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static unsigned long long creat_sqnum;
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-static const char *optstring = "d:r:m:o:D:h?vVe:c:g:f:Fp:k:x:X:j:R:l:j:UQq";
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+static const char *optstring = "d:r:m:o:D:h?vVe:c:g:f:Fp:k:x:X:y:j:R:l:j:UQq";
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static const struct option longopts[] = {
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{"root", 1, NULL, 'r'},
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@@ -149,6 +152,7 @@ static const struct option longopts[] =
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{"reserved", 1, NULL, 'R'},
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{"compr", 1, NULL, 'x'},
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{"favor-percent", 1, NULL, 'X'},
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+ {"force-compr", 1, NULL, 'y'},
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{"fanout", 1, NULL, 'f'},
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{"space-fixup", 0, NULL, 'F'},
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{"keyhash", 1, NULL, 'k'},
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@@ -178,11 +182,13 @@ static const char *helptext =
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"-o, --output=FILE output to FILE\n"
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"-j, --jrn-size=SIZE journal size\n"
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"-R, --reserved=SIZE how much space should be reserved for the super-user\n"
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-"-x, --compr=TYPE compression type - \"lzo\", \"favor_lzo\", \"zlib\" or\n"
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-" \"none\" (default: \"lzo\")\n"
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+"-x, --compr=TYPE default compression type - \"lzo\", \"favor_lzo\",\n"
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+" \"zlib\" or \"none\" (default: \"lzo\")\n"
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"-X, --favor-percent may only be used with favor LZO compression and defines\n"
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" how many percent better zlib should compress to make\n"
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" mkfs.ubifs use zlib instead of LZO (default 20%)\n"
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+"-y, --force-compr=TYPE force to build the fs with different compression -\n"
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+" \"lzo\", \"zlib\" or \"none\"\n"
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"-f, --fanout=NUM fanout NUM (default: 8)\n"
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"-F, --space-fixup file-system free space has to be fixed up on first mount\n"
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" (requires kernel version 3.0 or greater)\n"
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@@ -530,6 +536,43 @@ static int open_ubi(const char *node)
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return 0;
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}
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+static const char *get_compr_str(int compr)
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+{
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+ switch (compr) {
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+ case UBIFS_COMPR_LZO:
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+ return "lzo";
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+ case UBIFS_COMPR_ZLIB:
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+ return "zlib";
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+ case UBIFS_COMPR_XZ:
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+ return "xz";
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+ case UBIFS_COMPR_NONE:
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+ return "none";
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+ }
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+
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+ return "unknown";
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+}
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+
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+static int get_compr_option(char *opt, int *compr_type, int *favor_lzo)
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+{
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+ *compr_type = UBIFS_COMPR_LZO;
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+
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+ if (favor_lzo)
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+ *favor_lzo = 0;
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+
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+ if (favor_lzo && strcmp(optarg, "favor_lzo") == 0)
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+ *favor_lzo = 1;
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+ else if (strcmp(optarg, "zlib") == 0)
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+ *compr_type = UBIFS_COMPR_ZLIB;
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+ else if (strcmp(optarg, "xz") == 0)
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+ *compr_type = UBIFS_COMPR_XZ;
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+ else if (strcmp(optarg, "none") == 0)
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+ *compr_type = UBIFS_COMPR_NONE;
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+ else if (strcmp(optarg, "lzo") != 0)
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+ return -1;
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+
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+ return 0;
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+}
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+
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static int get_options(int argc, char**argv)
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{
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int opt, i;
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@@ -649,14 +692,13 @@ static int get_options(int argc, char**a
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return err_msg("bad key hash");
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break;
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case 'x':
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- if (strcmp(optarg, "favor_lzo") == 0)
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- c->favor_lzo = 1;
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- else if (strcmp(optarg, "zlib") == 0)
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- c->default_compr = UBIFS_COMPR_ZLIB;
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- else if (strcmp(optarg, "none") == 0)
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- c->default_compr = UBIFS_COMPR_NONE;
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- else if (strcmp(optarg, "lzo") != 0)
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- return err_msg("bad compressor name");
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+ if (get_compr_option(optarg, &c->default_compr,
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+ &c->favor_lzo))
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+ return err_msg("bad compressor name '%s'",
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+ optarg);
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+ if (c->default_compr == UBIFS_COMPR_XZ)
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+ return err_msg("'%s' can't be used as default compressor",
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+ optarg);
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break;
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case 'X':
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c->favor_percent = strtol(optarg, &endp, 0);
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@@ -665,6 +707,12 @@ static int get_options(int argc, char**a
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return err_msg("bad favor LZO percent '%s'",
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optarg);
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break;
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+ case 'y':
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+ if (get_compr_option(optarg, &force_compr, NULL))
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+ return err_msg("bad forced compressor name '%s'",
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+ optarg);
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+ force_compr_set = 1;
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+ break;
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case 'j':
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c->max_bud_bytes = get_bytes(optarg);
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if (c->max_bud_bytes <= 0)
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@@ -749,6 +797,9 @@ static int get_options(int argc, char**a
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c->min_io_size = 8;
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c->rp_size = add_space_overhead(c->rp_size);
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+ if (force_compr_set == 0)
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+ force_compr = c->default_compr;
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+
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if (verbose) {
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printf("mkfs.ubifs\n");
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printf("\troot: %s\n", root);
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@@ -758,17 +809,10 @@ static int get_options(int argc, char**a
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printf("\toutput: %s\n", output);
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printf("\tjrn_size: %llu\n", c->max_bud_bytes);
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printf("\treserved: %llu\n", c->rp_size);
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- switch (c->default_compr) {
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- case UBIFS_COMPR_LZO:
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- printf("\tcompr: lzo\n");
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- break;
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- case UBIFS_COMPR_ZLIB:
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- printf("\tcompr: zlib\n");
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- break;
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- case UBIFS_COMPR_NONE:
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- printf("\tcompr: none\n");
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- break;
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- }
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+ printf("\tcompr: %s\n", get_compr_str(c->default_compr));
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+ if (force_compr_set)
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+ printf("\tforced compr: %s\n",
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+ get_compr_str(force_compr));
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printf("\tkeyhash: %s\n", (c->key_hash == key_r5_hash) ?
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"r5" : "test");
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printf("\tfanout: %d\n", c->fanout);
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@@ -1353,7 +1397,7 @@ static int add_file(const char *path_nam
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use_compr = UBIFS_COMPR_LZO;
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else
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#endif
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- use_compr = c->default_compr;
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+ use_compr = force_compr;
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compr_type = compress_data(buf, bytes_read, &dn->data,
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&out_len, use_compr);
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dn->compr_type = cpu_to_le16(compr_type);
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--- a/mkfs.ubifs/mkfs.ubifs.h
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+++ b/mkfs.ubifs/mkfs.ubifs.h
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@@ -77,6 +77,9 @@
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#if MKFS_UBIFS_COMPR_ZLIB != UBIFS_COMPR_ZLIB
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#error MKFS_UBIFS_COMPR_ZLIB != UBIFS_COMPR_ZLIB
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#endif
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+#if MKFS_UBIFS_COMPR_XZ != UBIFS_COMPR_XZ
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+#error MKFS_UBIFS_COMPR_XZ != UBIFS_COMPR_XZ
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+#endif
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extern int verbose;
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extern int debug_level;
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--- a/mkfs.ubifs/ubifs-media.h
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+++ b/mkfs.ubifs/ubifs-media.h
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@@ -303,6 +303,7 @@ enum {
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UBIFS_COMPR_NONE,
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UBIFS_COMPR_LZO,
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UBIFS_COMPR_ZLIB,
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+ UBIFS_COMPR_XZ,
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UBIFS_COMPR_TYPES_CNT,
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};
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