tools-$(CONFIG_TARGET_ath79) += lzma-old squashfs
tools-$(CONFIG_TARGET_mxs) += elftosb sdimage
tools-$(CONFIG_TARGET_tegra) += cbootimage cbootimage-configs
-tools-$(CONFIG_TARGET_x86) += qemu
tools-$(CONFIG_USES_MINOR) += kernel2minor
tools-$(CONFIG_USE_SPARSE) += sparse
$(curdir)/mtd-utils/compile := $(curdir)/libtool/compile $(curdir)/e2fsprogs/compile $(curdir)/zlib/compile
$(curdir)/padjffs2/compile := $(curdir)/findutils/compile
$(curdir)/patchelf/compile := $(curdir)/libtool/compile
-$(curdir)/qemu/compile := $(curdir)/e2fsprogs/compile $(curdir)/zlib/compile
$(curdir)/quilt/compile := $(curdir)/autoconf/compile $(curdir)/findutils/compile
$(curdir)/sdcc/compile := $(curdir)/bison/compile
$(curdir)/squashfs/compile := $(curdir)/lzma-old/compile
+++ /dev/null
-#
-# Copyright (C) 2010-2012 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-include $(TOPDIR)/rules.mk
-
-PKG_NAME:=qemu
-PKG_CPE_ID:=cpe:/a:qemu:qemu
-PKG_VERSION:=0.14.1
-PKG_RELEASE:=1
-
-PKG_SOURCE_URL:=@SAVANNAH/qemu
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_HASH:=33ceae3fbe516f2cbb151dc98d16c8ccfec74b1056674ad715e75a2f7fed45c3
-
-include $(INCLUDE_DIR)/host-build.mk
-
-HOST_CFLAGS += \
- -I$(STAGING_DIR_HOST)/include/e2fsprogs \
- -DAES_cbc_encrypt=QEMU_AES_cbc_encrypt \
- -DAES_decrypt=QEMU_AES_decrypt \
- -DAES_encrypt=QEMU_AES_encrypt \
- -DAES_set_decrypt_key=QEMU_AES_set_decrypt_key \
- -DAES_set_encrypt_key=QEMU_AES_set_encrypt_key
-
-HOST_CONFIGURE_VARS := \
- CFLAGS="$(HOST_CFLAGS)" \
- LDFLAGS="$(HOST_LDFLAGS)"
-
-HOST_CONFIGURE_ARGS := \
- --extra-cflags="$(HOST_CFLAGS)" \
- --enable-uuid
-
-define Host/Compile
- $(MAKE) -C $(HOST_BUILD_DIR) qemu-img
-endef
-
-define Host/Install
- $(INSTALL_DIR) $(STAGING_DIR_HOST)/bin
- $(INSTALL_BIN) $(HOST_BUILD_DIR)/qemu-img $(STAGING_DIR_HOST)/bin
-endef
-
-$(eval $(call HostBuild))
+++ /dev/null
-From 6afca0fc5430db0300fe53f2b9cd7d071a3925bb Mon Sep 17 00:00:00 2001
-From: Alexander Graf <agraf@suse.de>
-Date: Wed, 25 May 2011 00:46:55 +0200
-Subject: [PATCH 01/12] vmdk: fix endianness bugs
-
-The vmdk code is sloppy when handling the header descriptor during
-creation of an image. Fix all header accesses in the create path to
-either store native endianness or convert it when appropriate.
-
-Reported-by: Yury Tsarev <ytsarev@novell.com>
-Signed-off-by: Alexander Graf <agraf@suse.de>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 22 ++++++++++++++--------
- 1 file changed, 14 insertions(+), 8 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -716,11 +716,11 @@ static int vmdk_create(const char *filen
- return -errno;
- magic = cpu_to_be32(VMDK4_MAGIC);
- memset(&header, 0, sizeof(header));
-- header.version = cpu_to_le32(1);
-- header.flags = cpu_to_le32(3); /* ?? */
-- header.capacity = cpu_to_le64(total_size);
-- header.granularity = cpu_to_le64(128);
-- header.num_gtes_per_gte = cpu_to_le32(512);
-+ header.version = 1;
-+ header.flags = 3; /* ?? */
-+ header.capacity = total_size;
-+ header.granularity = 128;
-+ header.num_gtes_per_gte = 512;
-
- grains = (total_size + header.granularity - 1) / header.granularity;
- gt_size = ((header.num_gtes_per_gte * sizeof(uint32_t)) + 511) >> 9;
-@@ -736,6 +736,12 @@ static int vmdk_create(const char *filen
- header.granularity - 1) / header.granularity) *
- header.granularity;
-
-+ /* swap endianness for all header fields */
-+ header.version = cpu_to_le32(header.version);
-+ header.flags = cpu_to_le32(header.flags);
-+ header.capacity = cpu_to_le64(header.capacity);
-+ header.granularity = cpu_to_le64(header.granularity);
-+ header.num_gtes_per_gte = cpu_to_le32(header.num_gtes_per_gte);
- header.desc_offset = cpu_to_le64(header.desc_offset);
- header.desc_size = cpu_to_le64(header.desc_size);
- header.rgd_offset = cpu_to_le64(header.rgd_offset);
-@@ -759,7 +765,7 @@ static int vmdk_create(const char *filen
- goto exit;
- }
-
-- ret = ftruncate(fd, header.grain_offset << 9);
-+ ret = ftruncate(fd, le64_to_cpu(header.grain_offset) << 9);
- if (ret < 0) {
- ret = -errno;
- goto exit;
-@@ -767,7 +773,7 @@ static int vmdk_create(const char *filen
-
- /* write grain directory */
- lseek(fd, le64_to_cpu(header.rgd_offset) << 9, SEEK_SET);
-- for (i = 0, tmp = header.rgd_offset + gd_size;
-+ for (i = 0, tmp = le64_to_cpu(header.rgd_offset) + gd_size;
- i < gt_count; i++, tmp += gt_size) {
- ret = qemu_write_full(fd, &tmp, sizeof(tmp));
- if (ret != sizeof(tmp)) {
-@@ -778,7 +784,7 @@ static int vmdk_create(const char *filen
-
- /* write backup grain directory */
- lseek(fd, le64_to_cpu(header.gd_offset) << 9, SEEK_SET);
-- for (i = 0, tmp = header.gd_offset + gd_size;
-+ for (i = 0, tmp = le64_to_cpu(header.gd_offset) + gd_size;
- i < gt_count; i++, tmp += gt_size) {
- ret = qemu_write_full(fd, &tmp, sizeof(tmp));
- if (ret != sizeof(tmp)) {
+++ /dev/null
-From fcd9c52d160376184cbd25e04586aa6eef6abd61 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:28 +0800
-Subject: [PATCH 02/12] VMDK: introduce VmdkExtent
-
-Introduced VmdkExtent array into BDRVVmdkState, enable holding multiple
-image extents for multiple file image support.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 348 +++++++++++++++++++++++++++++++++++++++++------------------
- 1 file changed, 246 insertions(+), 102 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -60,7 +60,11 @@ typedef struct {
-
- #define L2_CACHE_SIZE 16
-
--typedef struct BDRVVmdkState {
-+typedef struct VmdkExtent {
-+ BlockDriverState *file;
-+ bool flat;
-+ int64_t sectors;
-+ int64_t end_sector;
- int64_t l1_table_offset;
- int64_t l1_backup_table_offset;
- uint32_t *l1_table;
-@@ -74,7 +78,13 @@ typedef struct BDRVVmdkState {
- uint32_t l2_cache_counts[L2_CACHE_SIZE];
-
- unsigned int cluster_sectors;
-+} VmdkExtent;
-+
-+typedef struct BDRVVmdkState {
- uint32_t parent_cid;
-+ int num_extents;
-+ /* Extent array with num_extents entries, ascend ordered by address */
-+ VmdkExtent *extents;
- } BDRVVmdkState;
-
- typedef struct VmdkMetaData {
-@@ -105,6 +115,19 @@ static int vmdk_probe(const uint8_t *buf
- #define DESC_SIZE 20*SECTOR_SIZE // 20 sectors of 512 bytes each
- #define HEADER_SIZE 512 // first sector of 512 bytes
-
-+static void vmdk_free_extents(BlockDriverState *bs)
-+{
-+ int i;
-+ BDRVVmdkState *s = bs->opaque;
-+
-+ for (i = 0; i < s->num_extents; i++) {
-+ qemu_free(s->extents[i].l1_table);
-+ qemu_free(s->extents[i].l2_cache);
-+ qemu_free(s->extents[i].l1_backup_table);
-+ }
-+ qemu_free(s->extents);
-+}
-+
- static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
- {
- char desc[DESC_SIZE];
-@@ -358,11 +381,50 @@ static int vmdk_parent_open(BlockDriverS
- return 0;
- }
-
-+/* Create and append extent to the extent array. Return the added VmdkExtent
-+ * address. return NULL if allocation failed. */
-+static VmdkExtent *vmdk_add_extent(BlockDriverState *bs,
-+ BlockDriverState *file, bool flat, int64_t sectors,
-+ int64_t l1_offset, int64_t l1_backup_offset,
-+ uint32_t l1_size,
-+ int l2_size, unsigned int cluster_sectors)
-+{
-+ VmdkExtent *extent;
-+ BDRVVmdkState *s = bs->opaque;
-+
-+ s->extents = qemu_realloc(s->extents,
-+ (s->num_extents + 1) * sizeof(VmdkExtent));
-+ extent = &s->extents[s->num_extents];
-+ s->num_extents++;
-+
-+ memset(extent, 0, sizeof(VmdkExtent));
-+ extent->file = file;
-+ extent->flat = flat;
-+ extent->sectors = sectors;
-+ extent->l1_table_offset = l1_offset;
-+ extent->l1_backup_table_offset = l1_backup_offset;
-+ extent->l1_size = l1_size;
-+ extent->l1_entry_sectors = l2_size * cluster_sectors;
-+ extent->l2_size = l2_size;
-+ extent->cluster_sectors = cluster_sectors;
-+
-+ if (s->num_extents > 1) {
-+ extent->end_sector = (*(extent - 1)).end_sector + extent->sectors;
-+ } else {
-+ extent->end_sector = extent->sectors;
-+ }
-+ bs->total_sectors = extent->end_sector;
-+ return extent;
-+}
-+
-+
- static int vmdk_open(BlockDriverState *bs, int flags)
- {
- BDRVVmdkState *s = bs->opaque;
- uint32_t magic;
-- int l1_size, i;
-+ int i;
-+ uint32_t l1_size, l1_entry_sectors;
-+ VmdkExtent *extent = NULL;
-
- if (bdrv_pread(bs->file, 0, &magic, sizeof(magic)) != sizeof(magic))
- goto fail;
-@@ -370,32 +432,34 @@ static int vmdk_open(BlockDriverState *b
- magic = be32_to_cpu(magic);
- if (magic == VMDK3_MAGIC) {
- VMDK3Header header;
--
-- if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header)) != sizeof(header))
-+ if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header))
-+ != sizeof(header)) {
- goto fail;
-- s->cluster_sectors = le32_to_cpu(header.granularity);
-- s->l2_size = 1 << 9;
-- s->l1_size = 1 << 6;
-- bs->total_sectors = le32_to_cpu(header.disk_sectors);
-- s->l1_table_offset = le32_to_cpu(header.l1dir_offset) << 9;
-- s->l1_backup_table_offset = 0;
-- s->l1_entry_sectors = s->l2_size * s->cluster_sectors;
-+ }
-+ extent = vmdk_add_extent(bs, bs->file, false,
-+ le32_to_cpu(header.disk_sectors),
-+ le32_to_cpu(header.l1dir_offset) << 9, 0,
-+ 1 << 6, 1 << 9, le32_to_cpu(header.granularity));
- } else if (magic == VMDK4_MAGIC) {
- VMDK4Header header;
--
-- if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header)) != sizeof(header))
-+ if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header))
-+ != sizeof(header)) {
- goto fail;
-- bs->total_sectors = le64_to_cpu(header.capacity);
-- s->cluster_sectors = le64_to_cpu(header.granularity);
-- s->l2_size = le32_to_cpu(header.num_gtes_per_gte);
-- s->l1_entry_sectors = s->l2_size * s->cluster_sectors;
-- if (s->l1_entry_sectors <= 0)
-+ }
-+ l1_entry_sectors = le32_to_cpu(header.num_gtes_per_gte)
-+ * le64_to_cpu(header.granularity);
-+ l1_size = (le64_to_cpu(header.capacity) + l1_entry_sectors - 1)
-+ / l1_entry_sectors;
-+ extent = vmdk_add_extent(bs, bs->file, false,
-+ le64_to_cpu(header.capacity),
-+ le64_to_cpu(header.gd_offset) << 9,
-+ le64_to_cpu(header.rgd_offset) << 9,
-+ l1_size,
-+ le32_to_cpu(header.num_gtes_per_gte),
-+ le64_to_cpu(header.granularity));
-+ if (extent->l1_entry_sectors <= 0) {
- goto fail;
-- s->l1_size = (bs->total_sectors + s->l1_entry_sectors - 1)
-- / s->l1_entry_sectors;
-- s->l1_table_offset = le64_to_cpu(header.rgd_offset) << 9;
-- s->l1_backup_table_offset = le64_to_cpu(header.gd_offset) << 9;
--
-+ }
- // try to open parent images, if exist
- if (vmdk_parent_open(bs) != 0)
- goto fail;
-@@ -406,40 +470,49 @@ static int vmdk_open(BlockDriverState *b
- }
-
- /* read the L1 table */
-- l1_size = s->l1_size * sizeof(uint32_t);
-- s->l1_table = qemu_malloc(l1_size);
-- if (bdrv_pread(bs->file, s->l1_table_offset, s->l1_table, l1_size) != l1_size)
-- goto fail;
-- for(i = 0; i < s->l1_size; i++) {
-- le32_to_cpus(&s->l1_table[i]);
-- }
--
-- if (s->l1_backup_table_offset) {
-- s->l1_backup_table = qemu_malloc(l1_size);
-- if (bdrv_pread(bs->file, s->l1_backup_table_offset, s->l1_backup_table, l1_size) != l1_size)
-+ l1_size = extent->l1_size * sizeof(uint32_t);
-+ extent->l1_table = qemu_malloc(l1_size);
-+ if (bdrv_pread(bs->file,
-+ extent->l1_table_offset,
-+ extent->l1_table,
-+ l1_size)
-+ != l1_size) {
-+ goto fail;
-+ }
-+ for (i = 0; i < extent->l1_size; i++) {
-+ le32_to_cpus(&extent->l1_table[i]);
-+ }
-+
-+ if (extent->l1_backup_table_offset) {
-+ extent->l1_backup_table = qemu_malloc(l1_size);
-+ if (bdrv_pread(bs->file,
-+ extent->l1_backup_table_offset,
-+ extent->l1_backup_table,
-+ l1_size)
-+ != l1_size) {
- goto fail;
-- for(i = 0; i < s->l1_size; i++) {
-- le32_to_cpus(&s->l1_backup_table[i]);
-+ }
-+ for (i = 0; i < extent->l1_size; i++) {
-+ le32_to_cpus(&extent->l1_backup_table[i]);
- }
- }
-
-- s->l2_cache = qemu_malloc(s->l2_size * L2_CACHE_SIZE * sizeof(uint32_t));
-+ extent->l2_cache =
-+ qemu_malloc(extent->l2_size * L2_CACHE_SIZE * sizeof(uint32_t));
- return 0;
- fail:
-- qemu_free(s->l1_backup_table);
-- qemu_free(s->l1_table);
-- qemu_free(s->l2_cache);
-+ vmdk_free_extents(bs);
- return -1;
- }
-
--static uint64_t get_cluster_offset(BlockDriverState *bs, VmdkMetaData *m_data,
-- uint64_t offset, int allocate);
--
--static int get_whole_cluster(BlockDriverState *bs, uint64_t cluster_offset,
-- uint64_t offset, int allocate)
-+static int get_whole_cluster(BlockDriverState *bs,
-+ VmdkExtent *extent,
-+ uint64_t cluster_offset,
-+ uint64_t offset,
-+ bool allocate)
- {
-- BDRVVmdkState *s = bs->opaque;
-- uint8_t whole_grain[s->cluster_sectors*512]; // 128 sectors * 512 bytes each = grain size 64KB
-+ /* 128 sectors * 512 bytes each = grain size 64KB */
-+ uint8_t whole_grain[extent->cluster_sectors * 512];
-
- // we will be here if it's first write on non-exist grain(cluster).
- // try to read from parent image, if exist
-@@ -450,14 +523,14 @@ static int get_whole_cluster(BlockDriver
- return -1;
-
- ret = bdrv_read(bs->backing_hd, offset >> 9, whole_grain,
-- s->cluster_sectors);
-+ extent->cluster_sectors);
- if (ret < 0) {
- return -1;
- }
-
- //Write grain only into the active image
-- ret = bdrv_write(bs->file, cluster_offset, whole_grain,
-- s->cluster_sectors);
-+ ret = bdrv_write(extent->file, cluster_offset, whole_grain,
-+ extent->cluster_sectors);
- if (ret < 0) {
- return -1;
- }
-@@ -465,29 +538,39 @@ static int get_whole_cluster(BlockDriver
- return 0;
- }
-
--static int vmdk_L2update(BlockDriverState *bs, VmdkMetaData *m_data)
-+static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data)
- {
-- BDRVVmdkState *s = bs->opaque;
--
- /* update L2 table */
-- if (bdrv_pwrite_sync(bs->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(m_data->offset)),
-- &(m_data->offset), sizeof(m_data->offset)) < 0)
-+ if (bdrv_pwrite_sync(
-+ extent->file,
-+ ((int64_t)m_data->l2_offset * 512)
-+ + (m_data->l2_index * sizeof(m_data->offset)),
-+ &(m_data->offset),
-+ sizeof(m_data->offset)
-+ ) < 0) {
- return -1;
-+ }
- /* update backup L2 table */
-- if (s->l1_backup_table_offset != 0) {
-- m_data->l2_offset = s->l1_backup_table[m_data->l1_index];
-- if (bdrv_pwrite_sync(bs->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(m_data->offset)),
-- &(m_data->offset), sizeof(m_data->offset)) < 0)
-+ if (extent->l1_backup_table_offset != 0) {
-+ m_data->l2_offset = extent->l1_backup_table[m_data->l1_index];
-+ if (bdrv_pwrite_sync(
-+ extent->file,
-+ ((int64_t)m_data->l2_offset * 512)
-+ + (m_data->l2_index * sizeof(m_data->offset)),
-+ &(m_data->offset), sizeof(m_data->offset)
-+ ) < 0) {
- return -1;
-+ }
- }
-
- return 0;
- }
-
--static uint64_t get_cluster_offset(BlockDriverState *bs, VmdkMetaData *m_data,
-- uint64_t offset, int allocate)
-+static uint64_t get_cluster_offset(BlockDriverState *bs,
-+ VmdkExtent *extent,
-+ VmdkMetaData *m_data,
-+ uint64_t offset, int allocate)
- {
-- BDRVVmdkState *s = bs->opaque;
- unsigned int l1_index, l2_offset, l2_index;
- int min_index, i, j;
- uint32_t min_count, *l2_table, tmp = 0;
-@@ -496,21 +579,23 @@ static uint64_t get_cluster_offset(Block
- if (m_data)
- m_data->valid = 0;
-
-- l1_index = (offset >> 9) / s->l1_entry_sectors;
-- if (l1_index >= s->l1_size)
-+ l1_index = (offset >> 9) / extent->l1_entry_sectors;
-+ if (l1_index >= extent->l1_size) {
- return 0;
-- l2_offset = s->l1_table[l1_index];
-- if (!l2_offset)
-+ }
-+ l2_offset = extent->l1_table[l1_index];
-+ if (!l2_offset) {
- return 0;
-+ }
- for(i = 0; i < L2_CACHE_SIZE; i++) {
-- if (l2_offset == s->l2_cache_offsets[i]) {
-+ if (l2_offset == extent->l2_cache_offsets[i]) {
- /* increment the hit count */
-- if (++s->l2_cache_counts[i] == 0xffffffff) {
-+ if (++extent->l2_cache_counts[i] == 0xffffffff) {
- for(j = 0; j < L2_CACHE_SIZE; j++) {
-- s->l2_cache_counts[j] >>= 1;
-+ extent->l2_cache_counts[j] >>= 1;
- }
- }
-- l2_table = s->l2_cache + (i * s->l2_size);
-+ l2_table = extent->l2_cache + (i * extent->l2_size);
- goto found;
- }
- }
-@@ -518,20 +603,25 @@ static uint64_t get_cluster_offset(Block
- min_index = 0;
- min_count = 0xffffffff;
- for(i = 0; i < L2_CACHE_SIZE; i++) {
-- if (s->l2_cache_counts[i] < min_count) {
-- min_count = s->l2_cache_counts[i];
-+ if (extent->l2_cache_counts[i] < min_count) {
-+ min_count = extent->l2_cache_counts[i];
- min_index = i;
- }
- }
-- l2_table = s->l2_cache + (min_index * s->l2_size);
-- if (bdrv_pread(bs->file, (int64_t)l2_offset * 512, l2_table, s->l2_size * sizeof(uint32_t)) !=
-- s->l2_size * sizeof(uint32_t))
-+ l2_table = extent->l2_cache + (min_index * extent->l2_size);
-+ if (bdrv_pread(
-+ extent->file,
-+ (int64_t)l2_offset * 512,
-+ l2_table,
-+ extent->l2_size * sizeof(uint32_t)
-+ ) != extent->l2_size * sizeof(uint32_t)) {
- return 0;
-+ }
-
-- s->l2_cache_offsets[min_index] = l2_offset;
-- s->l2_cache_counts[min_index] = 1;
-+ extent->l2_cache_offsets[min_index] = l2_offset;
-+ extent->l2_cache_counts[min_index] = 1;
- found:
-- l2_index = ((offset >> 9) / s->cluster_sectors) % s->l2_size;
-+ l2_index = ((offset >> 9) / extent->cluster_sectors) % extent->l2_size;
- cluster_offset = le32_to_cpu(l2_table[l2_index]);
-
- if (!cluster_offset) {
-@@ -539,8 +629,11 @@ static uint64_t get_cluster_offset(Block
- return 0;
-
- // Avoid the L2 tables update for the images that have snapshots.
-- cluster_offset = bdrv_getlength(bs->file);
-- bdrv_truncate(bs->file, cluster_offset + (s->cluster_sectors << 9));
-+ cluster_offset = bdrv_getlength(extent->file);
-+ bdrv_truncate(
-+ extent->file,
-+ cluster_offset + (extent->cluster_sectors << 9)
-+ );
-
- cluster_offset >>= 9;
- tmp = cpu_to_le32(cluster_offset);
-@@ -551,7 +644,8 @@ static uint64_t get_cluster_offset(Block
- * This problem may occur because of insufficient space on host disk
- * or inappropriate VM shutdown.
- */
-- if (get_whole_cluster(bs, cluster_offset, offset, allocate) == -1)
-+ if (get_whole_cluster(
-+ bs, extent, cluster_offset, offset, allocate) == -1)
- return 0;
-
- if (m_data) {
-@@ -566,33 +660,69 @@ static uint64_t get_cluster_offset(Block
- return cluster_offset;
- }
-
-+static VmdkExtent *find_extent(BDRVVmdkState *s,
-+ int64_t sector_num, VmdkExtent *start_hint)
-+{
-+ VmdkExtent *extent = start_hint;
-+
-+ if (!extent) {
-+ extent = &s->extents[0];
-+ }
-+ while (extent < &s->extents[s->num_extents]) {
-+ if (sector_num < extent->end_sector) {
-+ return extent;
-+ }
-+ extent++;
-+ }
-+ return NULL;
-+}
-+
- static int vmdk_is_allocated(BlockDriverState *bs, int64_t sector_num,
- int nb_sectors, int *pnum)
- {
- BDRVVmdkState *s = bs->opaque;
-- int index_in_cluster, n;
-- uint64_t cluster_offset;
-
-- cluster_offset = get_cluster_offset(bs, NULL, sector_num << 9, 0);
-- index_in_cluster = sector_num % s->cluster_sectors;
-- n = s->cluster_sectors - index_in_cluster;
-+ int64_t index_in_cluster, n, ret;
-+ uint64_t offset;
-+ VmdkExtent *extent;
-+
-+ extent = find_extent(s, sector_num, NULL);
-+ if (!extent) {
-+ return 0;
-+ }
-+ if (extent->flat) {
-+ n = extent->end_sector - sector_num;
-+ ret = 1;
-+ } else {
-+ offset = get_cluster_offset(bs, extent, NULL, sector_num * 512, 0);
-+ index_in_cluster = sector_num % extent->cluster_sectors;
-+ n = extent->cluster_sectors - index_in_cluster;
-+ ret = offset ? 1 : 0;
-+ }
- if (n > nb_sectors)
- n = nb_sectors;
- *pnum = n;
-- return (cluster_offset != 0);
-+ return ret;
- }
-
- static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
- uint8_t *buf, int nb_sectors)
- {
- BDRVVmdkState *s = bs->opaque;
-- int index_in_cluster, n, ret;
-+ int ret;
-+ uint64_t n, index_in_cluster;
-+ VmdkExtent *extent = NULL;
- uint64_t cluster_offset;
-
- while (nb_sectors > 0) {
-- cluster_offset = get_cluster_offset(bs, NULL, sector_num << 9, 0);
-- index_in_cluster = sector_num % s->cluster_sectors;
-- n = s->cluster_sectors - index_in_cluster;
-+ extent = find_extent(s, sector_num, extent);
-+ if (!extent) {
-+ return -EIO;
-+ }
-+ cluster_offset = get_cluster_offset(
-+ bs, extent, NULL, sector_num << 9, 0);
-+ index_in_cluster = sector_num % extent->cluster_sectors;
-+ n = extent->cluster_sectors - index_in_cluster;
- if (n > nb_sectors)
- n = nb_sectors;
- if (!cluster_offset) {
-@@ -621,10 +751,12 @@ static int vmdk_write(BlockDriverState *
- const uint8_t *buf, int nb_sectors)
- {
- BDRVVmdkState *s = bs->opaque;
-- VmdkMetaData m_data;
-- int index_in_cluster, n;
-+ VmdkExtent *extent = NULL;
-+ int n;
-+ int64_t index_in_cluster;
- uint64_t cluster_offset;
- static int cid_update = 0;
-+ VmdkMetaData m_data;
-
- if (sector_num > bs->total_sectors) {
- fprintf(stderr,
-@@ -635,20 +767,35 @@ static int vmdk_write(BlockDriverState *
- }
-
- while (nb_sectors > 0) {
-- index_in_cluster = sector_num & (s->cluster_sectors - 1);
-- n = s->cluster_sectors - index_in_cluster;
-- if (n > nb_sectors)
-- n = nb_sectors;
-- cluster_offset = get_cluster_offset(bs, &m_data, sector_num << 9, 1);
-- if (!cluster_offset)
-+ extent = find_extent(s, sector_num, extent);
-+ if (!extent) {
-+ return -EIO;
-+ }
-+ cluster_offset = get_cluster_offset(
-+ bs,
-+ extent,
-+ &m_data,
-+ sector_num << 9, 1);
-+ if (!cluster_offset) {
- return -1;
-+ }
-+ index_in_cluster = sector_num % extent->cluster_sectors;
-+ n = extent->cluster_sectors - index_in_cluster;
-+ if (n > nb_sectors) {
-+ n = nb_sectors;
-+ }
-
-- if (bdrv_pwrite(bs->file, cluster_offset + index_in_cluster * 512, buf, n * 512) != n * 512)
-+ if (bdrv_pwrite(bs->file,
-+ cluster_offset + index_in_cluster * 512,
-+ buf, n * 512)
-+ != n * 512) {
- return -1;
-+ }
- if (m_data.valid) {
- /* update L2 tables */
-- if (vmdk_L2update(bs, &m_data) == -1)
-+ if (vmdk_L2update(extent, &m_data) == -1) {
- return -1;
-+ }
- }
- nb_sectors -= n;
- sector_num += n;
-@@ -822,10 +969,7 @@ exit:
-
- static void vmdk_close(BlockDriverState *bs)
- {
-- BDRVVmdkState *s = bs->opaque;
--
-- qemu_free(s->l1_table);
-- qemu_free(s->l2_cache);
-+ vmdk_free_extents(bs);
- }
-
- static int vmdk_flush(BlockDriverState *bs)
+++ /dev/null
-From 66922efc83a670178b208dec2f5123ec85fb6ba3 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:29 +0800
-Subject: [PATCH 03/12] VMDK: bugfix, align offset to cluster in
- get_whole_cluster
-
-In get_whole_cluster, the offset is not aligned to cluster when reading
-from backing_hd. When the first write to child is not at the cluster
-boundary, wrong address data from parent is copied to child.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 8 +++++---
- 1 file changed, 5 insertions(+), 3 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -514,21 +514,23 @@ static int get_whole_cluster(BlockDriver
- /* 128 sectors * 512 bytes each = grain size 64KB */
- uint8_t whole_grain[extent->cluster_sectors * 512];
-
-- // we will be here if it's first write on non-exist grain(cluster).
-- // try to read from parent image, if exist
-+ /* we will be here if it's first write on non-exist grain(cluster).
-+ * try to read from parent image, if exist */
- if (bs->backing_hd) {
- int ret;
-
- if (!vmdk_is_cid_valid(bs))
- return -1;
-
-+ /* floor offset to cluster */
-+ offset -= offset % (extent->cluster_sectors * 512);
- ret = bdrv_read(bs->backing_hd, offset >> 9, whole_grain,
- extent->cluster_sectors);
- if (ret < 0) {
- return -1;
- }
-
-- //Write grain only into the active image
-+ /* Write grain only into the active image */
- ret = bdrv_write(extent->file, cluster_offset, whole_grain,
- extent->cluster_sectors);
- if (ret < 0) {
+++ /dev/null
-From 930e57ecb64bbab75c2b71d0d1ba07451fec4567 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:30 +0800
-Subject: [PATCH 04/12] VMDK: probe for monolithicFlat images
-
-Probe as the same behavior as VMware does.
-Recognize image as monolithicFlat descriptor file when the file is text
-and the first effective line (not '#' leaded comment or space line) is
-either 'version=1' or 'version=2'. No space or upper case charactors
-accepted.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 45 +++++++++++++++++++++++++++++++++++++++++++--
- 1 file changed, 43 insertions(+), 2 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -103,10 +103,51 @@ static int vmdk_probe(const uint8_t *buf
- return 0;
- magic = be32_to_cpu(*(uint32_t *)buf);
- if (magic == VMDK3_MAGIC ||
-- magic == VMDK4_MAGIC)
-+ magic == VMDK4_MAGIC) {
- return 100;
-- else
-+ } else {
-+ const char *p = (const char *)buf;
-+ const char *end = p + buf_size;
-+ while (p < end) {
-+ if (*p == '#') {
-+ /* skip comment line */
-+ while (p < end && *p != '\n') {
-+ p++;
-+ }
-+ p++;
-+ continue;
-+ }
-+ if (*p == ' ') {
-+ while (p < end && *p == ' ') {
-+ p++;
-+ }
-+ /* skip '\r' if windows line endings used. */
-+ if (p < end && *p == '\r') {
-+ p++;
-+ }
-+ /* only accept blank lines before 'version=' line */
-+ if (p == end || *p != '\n') {
-+ return 0;
-+ }
-+ p++;
-+ continue;
-+ }
-+ if (end - p >= strlen("version=X\n")) {
-+ if (strncmp("version=1\n", p, strlen("version=1\n")) == 0 ||
-+ strncmp("version=2\n", p, strlen("version=2\n")) == 0) {
-+ return 100;
-+ }
-+ }
-+ if (end - p >= strlen("version=X\r\n")) {
-+ if (strncmp("version=1\r\n", p, strlen("version=1\r\n")) == 0 ||
-+ strncmp("version=2\r\n", p, strlen("version=2\r\n")) == 0) {
-+ return 100;
-+ }
-+ }
-+ return 0;
-+ }
- return 0;
-+ }
- }
-
- #define CHECK_CID 1
+++ /dev/null
-From 97cf5df76657bab81d6b8669607f6f13215201c1 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:31 +0800
-Subject: [PATCH 05/12] VMDK: separate vmdk_open by format version
-
-Separate vmdk_open by subformats to:
-* vmdk_open_vmdk3
-* vmdk_open_vmdk4
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 178 +++++++++++++++++++++++++++++++++++++----------------------
- 1 file changed, 112 insertions(+), 66 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -458,67 +458,20 @@ static VmdkExtent *vmdk_add_extent(Block
- return extent;
- }
-
--
--static int vmdk_open(BlockDriverState *bs, int flags)
-+static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent)
- {
-- BDRVVmdkState *s = bs->opaque;
-- uint32_t magic;
-- int i;
-- uint32_t l1_size, l1_entry_sectors;
-- VmdkExtent *extent = NULL;
--
-- if (bdrv_pread(bs->file, 0, &magic, sizeof(magic)) != sizeof(magic))
-- goto fail;
--
-- magic = be32_to_cpu(magic);
-- if (magic == VMDK3_MAGIC) {
-- VMDK3Header header;
-- if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header))
-- != sizeof(header)) {
-- goto fail;
-- }
-- extent = vmdk_add_extent(bs, bs->file, false,
-- le32_to_cpu(header.disk_sectors),
-- le32_to_cpu(header.l1dir_offset) << 9, 0,
-- 1 << 6, 1 << 9, le32_to_cpu(header.granularity));
-- } else if (magic == VMDK4_MAGIC) {
-- VMDK4Header header;
-- if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header))
-- != sizeof(header)) {
-- goto fail;
-- }
-- l1_entry_sectors = le32_to_cpu(header.num_gtes_per_gte)
-- * le64_to_cpu(header.granularity);
-- l1_size = (le64_to_cpu(header.capacity) + l1_entry_sectors - 1)
-- / l1_entry_sectors;
-- extent = vmdk_add_extent(bs, bs->file, false,
-- le64_to_cpu(header.capacity),
-- le64_to_cpu(header.gd_offset) << 9,
-- le64_to_cpu(header.rgd_offset) << 9,
-- l1_size,
-- le32_to_cpu(header.num_gtes_per_gte),
-- le64_to_cpu(header.granularity));
-- if (extent->l1_entry_sectors <= 0) {
-- goto fail;
-- }
-- // try to open parent images, if exist
-- if (vmdk_parent_open(bs) != 0)
-- goto fail;
-- // write the CID once after the image creation
-- s->parent_cid = vmdk_read_cid(bs,1);
-- } else {
-- goto fail;
-- }
-+ int ret;
-+ int l1_size, i;
-
- /* read the L1 table */
- l1_size = extent->l1_size * sizeof(uint32_t);
- extent->l1_table = qemu_malloc(l1_size);
-- if (bdrv_pread(bs->file,
-- extent->l1_table_offset,
-- extent->l1_table,
-- l1_size)
-- != l1_size) {
-- goto fail;
-+ ret = bdrv_pread(extent->file,
-+ extent->l1_table_offset,
-+ extent->l1_table,
-+ l1_size);
-+ if (ret < 0) {
-+ goto fail_l1;
- }
- for (i = 0; i < extent->l1_size; i++) {
- le32_to_cpus(&extent->l1_table[i]);
-@@ -526,12 +479,12 @@ static int vmdk_open(BlockDriverState *b
-
- if (extent->l1_backup_table_offset) {
- extent->l1_backup_table = qemu_malloc(l1_size);
-- if (bdrv_pread(bs->file,
-- extent->l1_backup_table_offset,
-- extent->l1_backup_table,
-- l1_size)
-- != l1_size) {
-- goto fail;
-+ ret = bdrv_pread(extent->file,
-+ extent->l1_backup_table_offset,
-+ extent->l1_backup_table,
-+ l1_size);
-+ if (ret < 0) {
-+ goto fail_l1b;
- }
- for (i = 0; i < extent->l1_size; i++) {
- le32_to_cpus(&extent->l1_backup_table[i]);
-@@ -541,9 +494,102 @@ static int vmdk_open(BlockDriverState *b
- extent->l2_cache =
- qemu_malloc(extent->l2_size * L2_CACHE_SIZE * sizeof(uint32_t));
- return 0;
-+ fail_l1b:
-+ qemu_free(extent->l1_backup_table);
-+ fail_l1:
-+ qemu_free(extent->l1_table);
-+ return ret;
-+}
-+
-+static int vmdk_open_vmdk3(BlockDriverState *bs, int flags)
-+{
-+ int ret;
-+ uint32_t magic;
-+ VMDK3Header header;
-+ VmdkExtent *extent;
-+
-+ ret = bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header));
-+ if (ret < 0) {
-+ goto fail;
-+ }
-+ extent = vmdk_add_extent(bs,
-+ bs->file, false,
-+ le32_to_cpu(header.disk_sectors),
-+ le32_to_cpu(header.l1dir_offset) << 9,
-+ 0, 1 << 6, 1 << 9,
-+ le32_to_cpu(header.granularity));
-+ ret = vmdk_init_tables(bs, extent);
-+ if (ret) {
-+ /* vmdk_init_tables cleans up on fail, so only free allocation of
-+ * vmdk_add_extent here. */
-+ goto fail;
-+ }
-+ return 0;
- fail:
- vmdk_free_extents(bs);
-- return -1;
-+ return ret;
-+}
-+
-+static int vmdk_open_vmdk4(BlockDriverState *bs, int flags)
-+{
-+ int ret;
-+ uint32_t magic;
-+ uint32_t l1_size, l1_entry_sectors;
-+ VMDK4Header header;
-+ BDRVVmdkState *s = bs->opaque;
-+ VmdkExtent *extent;
-+
-+ ret = bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header));
-+ if (ret < 0) {
-+ goto fail;
-+ }
-+ l1_entry_sectors = le32_to_cpu(header.num_gtes_per_gte)
-+ * le64_to_cpu(header.granularity);
-+ l1_size = (le64_to_cpu(header.capacity) + l1_entry_sectors - 1)
-+ / l1_entry_sectors;
-+ extent = vmdk_add_extent(bs, bs->file, false,
-+ le64_to_cpu(header.capacity),
-+ le64_to_cpu(header.gd_offset) << 9,
-+ le64_to_cpu(header.rgd_offset) << 9,
-+ l1_size,
-+ le32_to_cpu(header.num_gtes_per_gte),
-+ le64_to_cpu(header.granularity));
-+ if (extent->l1_entry_sectors <= 0) {
-+ ret = -EINVAL;
-+ goto fail;
-+ }
-+ /* try to open parent images, if exist */
-+ ret = vmdk_parent_open(bs);
-+ if (ret) {
-+ goto fail;
-+ }
-+ s->parent_cid = vmdk_read_cid(bs, 1);
-+ ret = vmdk_init_tables(bs, extent);
-+ if (ret) {
-+ goto fail;
-+ }
-+ return 0;
-+ fail:
-+ vmdk_free_extents(bs);
-+ return ret;
-+}
-+
-+static int vmdk_open(BlockDriverState *bs, int flags)
-+{
-+ uint32_t magic;
-+
-+ if (bdrv_pread(bs->file, 0, &magic, sizeof(magic)) != sizeof(magic)) {
-+ return -EIO;
-+ }
-+
-+ magic = be32_to_cpu(magic);
-+ if (magic == VMDK3_MAGIC) {
-+ return vmdk_open_vmdk3(bs, flags);
-+ } else if (magic == VMDK4_MAGIC) {
-+ return vmdk_open_vmdk4(bs, flags);
-+ } else {
-+ return -EINVAL;
-+ }
- }
-
- static int get_whole_cluster(BlockDriverState *bs,
-@@ -630,11 +676,11 @@ static uint64_t get_cluster_offset(Block
- if (!l2_offset) {
- return 0;
- }
-- for(i = 0; i < L2_CACHE_SIZE; i++) {
-+ for (i = 0; i < L2_CACHE_SIZE; i++) {
- if (l2_offset == extent->l2_cache_offsets[i]) {
- /* increment the hit count */
- if (++extent->l2_cache_counts[i] == 0xffffffff) {
-- for(j = 0; j < L2_CACHE_SIZE; j++) {
-+ for (j = 0; j < L2_CACHE_SIZE; j++) {
- extent->l2_cache_counts[j] >>= 1;
- }
- }
-@@ -645,7 +691,7 @@ static uint64_t get_cluster_offset(Block
- /* not found: load a new entry in the least used one */
- min_index = 0;
- min_count = 0xffffffff;
-- for(i = 0; i < L2_CACHE_SIZE; i++) {
-+ for (i = 0; i < L2_CACHE_SIZE; i++) {
- if (extent->l2_cache_counts[i] < min_count) {
- min_count = extent->l2_cache_counts[i];
- min_index = i;
+++ /dev/null
-From 1c1781fa1c45a7c012f7b2c4be1be372f19e3cc6 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:32 +0800
-Subject: [PATCH 06/12] VMDK: add field BDRVVmdkState.desc_offset
-
-There are several occurrence of magic number 0x200 as the descriptor
-offset within mono sparse image file. This is not the case for images
-with separate descriptor file. So a field is added to BDRVVmdkState to
-hold the correct value.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 27 ++++++++++++++++++---------
- 1 file changed, 18 insertions(+), 9 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -81,6 +81,7 @@ typedef struct VmdkExtent {
- } VmdkExtent;
-
- typedef struct BDRVVmdkState {
-+ int desc_offset;
- uint32_t parent_cid;
- int num_extents;
- /* Extent array with num_extents entries, ascend ordered by address */
-@@ -175,10 +176,11 @@ static uint32_t vmdk_read_cid(BlockDrive
- uint32_t cid;
- const char *p_name, *cid_str;
- size_t cid_str_size;
-+ BDRVVmdkState *s = bs->opaque;
-
-- /* the descriptor offset = 0x200 */
-- if (bdrv_pread(bs->file, 0x200, desc, DESC_SIZE) != DESC_SIZE)
-+ if (bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE) != DESC_SIZE) {
- return 0;
-+ }
-
- if (parent) {
- cid_str = "parentCID";
-@@ -200,10 +202,12 @@ static int vmdk_write_cid(BlockDriverSta
- {
- char desc[DESC_SIZE], tmp_desc[DESC_SIZE];
- char *p_name, *tmp_str;
-+ BDRVVmdkState *s = bs->opaque;
-
-- /* the descriptor offset = 0x200 */
-- if (bdrv_pread(bs->file, 0x200, desc, DESC_SIZE) != DESC_SIZE)
-- return -1;
-+ memset(desc, 0, sizeof(desc));
-+ if (bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE) != DESC_SIZE) {
-+ return -EIO;
-+ }
-
- tmp_str = strstr(desc,"parentCID");
- pstrcpy(tmp_desc, sizeof(tmp_desc), tmp_str);
-@@ -213,8 +217,9 @@ static int vmdk_write_cid(BlockDriverSta
- pstrcat(desc, sizeof(desc), tmp_desc);
- }
-
-- if (bdrv_pwrite_sync(bs->file, 0x200, desc, DESC_SIZE) < 0)
-- return -1;
-+ if (bdrv_pwrite_sync(bs->file, s->desc_offset, desc, DESC_SIZE) < 0) {
-+ return -EIO;
-+ }
- return 0;
- }
-
-@@ -402,10 +407,11 @@ static int vmdk_parent_open(BlockDriverS
- {
- char *p_name;
- char desc[DESC_SIZE];
-+ BDRVVmdkState *s = bs->opaque;
-
-- /* the descriptor offset = 0x200 */
-- if (bdrv_pread(bs->file, 0x200, desc, DESC_SIZE) != DESC_SIZE)
-+ if (bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE) != DESC_SIZE) {
- return -1;
-+ }
-
- if ((p_name = strstr(desc,"parentFileNameHint")) != NULL) {
- char *end_name;
-@@ -506,8 +512,10 @@ static int vmdk_open_vmdk3(BlockDriverSt
- int ret;
- uint32_t magic;
- VMDK3Header header;
-+ BDRVVmdkState *s = bs->opaque;
- VmdkExtent *extent;
-
-+ s->desc_offset = 0x200;
- ret = bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header));
- if (ret < 0) {
- goto fail;
-@@ -539,6 +547,7 @@ static int vmdk_open_vmdk4(BlockDriverSt
- BDRVVmdkState *s = bs->opaque;
- VmdkExtent *extent;
-
-+ s->desc_offset = 0x200;
- ret = bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header));
- if (ret < 0) {
- goto fail;
+++ /dev/null
-From 49885608e66c1e76a2b715fb36fd2f27f73e5202 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:33 +0800
-Subject: [PATCH 07/12] VMDK: flush multiple extents
-
-Flush all the file that referenced by the image.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 12 +++++++++++-
- 1 file changed, 11 insertions(+), 1 deletion(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -1072,7 +1072,17 @@ static void vmdk_close(BlockDriverState
-
- static int vmdk_flush(BlockDriverState *bs)
- {
-- return bdrv_flush(bs->file);
-+ int i, ret, err;
-+ BDRVVmdkState *s = bs->opaque;
-+
-+ ret = bdrv_flush(bs->file);
-+ for (i = 0; i < s->num_extents; i++) {
-+ err = bdrv_flush(s->extents[i].file);
-+ if (err < 0) {
-+ ret = err;
-+ }
-+ }
-+ return ret;
- }
-
-
+++ /dev/null
-From 9d8117f00364c12cbd658de903b1ed26a30584e0 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:34 +0800
-Subject: [PATCH 08/12] VMDK: move 'static' cid_update flag to bs field
-
-Cid_update is the flag for updating CID on first write after opening the
-image. This should be per image open rather than per program life cycle,
-so change it from static var of vmdk_write to a field in BDRVVmdkState.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -82,6 +82,7 @@ typedef struct VmdkExtent {
-
- typedef struct BDRVVmdkState {
- int desc_offset;
-+ bool cid_updated;
- uint32_t parent_cid;
- int num_extents;
- /* Extent array with num_extents entries, ascend ordered by address */
-@@ -853,7 +854,6 @@ static int vmdk_write(BlockDriverState *
- int n;
- int64_t index_in_cluster;
- uint64_t cluster_offset;
-- static int cid_update = 0;
- VmdkMetaData m_data;
-
- if (sector_num > bs->total_sectors) {
-@@ -900,9 +900,9 @@ static int vmdk_write(BlockDriverState *
- buf += n * 512;
-
- // update CID on the first write every time the virtual disk is opened
-- if (!cid_update) {
-+ if (!s->cid_updated) {
- vmdk_write_cid(bs, time(NULL));
-- cid_update++;
-+ s->cid_updated = true;
- }
- }
- return 0;
+++ /dev/null
-From 9e1ddc6967e8739f4fa47fa4f6a767ebe319f6ff Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 12 Jul 2011 19:56:35 +0800
-Subject: [PATCH 09/12] VMDK: change get_cluster_offset return type
-
-The return type of get_cluster_offset was an offset that use 0 to denote
-'not allocated', this will be no longer true for flat extents, as we see
-flat extent file as a single huge cluster whose offset is 0 and length
-is the whole file length.
-So now we use int return value, 0 means success and otherwise offset
-invalid.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 79 ++++++++++++++++++++++++++++++++----------------------------
- 1 file changed, 42 insertions(+), 37 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -665,26 +665,31 @@ static int vmdk_L2update(VmdkExtent *ext
- return 0;
- }
-
--static uint64_t get_cluster_offset(BlockDriverState *bs,
-+static int get_cluster_offset(BlockDriverState *bs,
- VmdkExtent *extent,
- VmdkMetaData *m_data,
-- uint64_t offset, int allocate)
-+ uint64_t offset,
-+ int allocate,
-+ uint64_t *cluster_offset)
- {
- unsigned int l1_index, l2_offset, l2_index;
- int min_index, i, j;
- uint32_t min_count, *l2_table, tmp = 0;
-- uint64_t cluster_offset;
-
- if (m_data)
- m_data->valid = 0;
-+ if (extent->flat) {
-+ *cluster_offset = 0;
-+ return 0;
-+ }
-
- l1_index = (offset >> 9) / extent->l1_entry_sectors;
- if (l1_index >= extent->l1_size) {
-- return 0;
-+ return -1;
- }
- l2_offset = extent->l1_table[l1_index];
- if (!l2_offset) {
-- return 0;
-+ return -1;
- }
- for (i = 0; i < L2_CACHE_SIZE; i++) {
- if (l2_offset == extent->l2_cache_offsets[i]) {
-@@ -714,28 +719,29 @@ static uint64_t get_cluster_offset(Block
- l2_table,
- extent->l2_size * sizeof(uint32_t)
- ) != extent->l2_size * sizeof(uint32_t)) {
-- return 0;
-+ return -1;
- }
-
- extent->l2_cache_offsets[min_index] = l2_offset;
- extent->l2_cache_counts[min_index] = 1;
- found:
- l2_index = ((offset >> 9) / extent->cluster_sectors) % extent->l2_size;
-- cluster_offset = le32_to_cpu(l2_table[l2_index]);
-+ *cluster_offset = le32_to_cpu(l2_table[l2_index]);
-
-- if (!cluster_offset) {
-- if (!allocate)
-- return 0;
-+ if (!*cluster_offset) {
-+ if (!allocate) {
-+ return -1;
-+ }
-
- // Avoid the L2 tables update for the images that have snapshots.
-- cluster_offset = bdrv_getlength(extent->file);
-+ *cluster_offset = bdrv_getlength(extent->file);
- bdrv_truncate(
- extent->file,
-- cluster_offset + (extent->cluster_sectors << 9)
-+ *cluster_offset + (extent->cluster_sectors << 9)
- );
-
-- cluster_offset >>= 9;
-- tmp = cpu_to_le32(cluster_offset);
-+ *cluster_offset >>= 9;
-+ tmp = cpu_to_le32(*cluster_offset);
- l2_table[l2_index] = tmp;
-
- /* First of all we write grain itself, to avoid race condition
-@@ -744,8 +750,8 @@ static uint64_t get_cluster_offset(Block
- * or inappropriate VM shutdown.
- */
- if (get_whole_cluster(
-- bs, extent, cluster_offset, offset, allocate) == -1)
-- return 0;
-+ bs, extent, *cluster_offset, offset, allocate) == -1)
-+ return -1;
-
- if (m_data) {
- m_data->offset = tmp;
-@@ -755,8 +761,8 @@ static uint64_t get_cluster_offset(Block
- m_data->valid = 1;
- }
- }
-- cluster_offset <<= 9;
-- return cluster_offset;
-+ *cluster_offset <<= 9;
-+ return 0;
- }
-
- static VmdkExtent *find_extent(BDRVVmdkState *s,
-@@ -780,7 +786,6 @@ static int vmdk_is_allocated(BlockDriver
- int nb_sectors, int *pnum)
- {
- BDRVVmdkState *s = bs->opaque;
--
- int64_t index_in_cluster, n, ret;
- uint64_t offset;
- VmdkExtent *extent;
-@@ -789,15 +794,13 @@ static int vmdk_is_allocated(BlockDriver
- if (!extent) {
- return 0;
- }
-- if (extent->flat) {
-- n = extent->end_sector - sector_num;
-- ret = 1;
-- } else {
-- offset = get_cluster_offset(bs, extent, NULL, sector_num * 512, 0);
-- index_in_cluster = sector_num % extent->cluster_sectors;
-- n = extent->cluster_sectors - index_in_cluster;
-- ret = offset ? 1 : 0;
-- }
-+ ret = get_cluster_offset(bs, extent, NULL,
-+ sector_num * 512, 0, &offset);
-+ /* get_cluster_offset returning 0 means success */
-+ ret = !ret;
-+
-+ index_in_cluster = sector_num % extent->cluster_sectors;
-+ n = extent->cluster_sectors - index_in_cluster;
- if (n > nb_sectors)
- n = nb_sectors;
- *pnum = n;
-@@ -818,14 +821,15 @@ static int vmdk_read(BlockDriverState *b
- if (!extent) {
- return -EIO;
- }
-- cluster_offset = get_cluster_offset(
-- bs, extent, NULL, sector_num << 9, 0);
-+ ret = get_cluster_offset(
-+ bs, extent, NULL,
-+ sector_num << 9, 0, &cluster_offset);
- index_in_cluster = sector_num % extent->cluster_sectors;
- n = extent->cluster_sectors - index_in_cluster;
- if (n > nb_sectors)
- n = nb_sectors;
-- if (!cluster_offset) {
-- // try to read from parent image, if exist
-+ if (ret) {
-+ /* if not allocated, try to read from parent image, if exist */
- if (bs->backing_hd) {
- if (!vmdk_is_cid_valid(bs))
- return -1;
-@@ -851,7 +855,7 @@ static int vmdk_write(BlockDriverState *
- {
- BDRVVmdkState *s = bs->opaque;
- VmdkExtent *extent = NULL;
-- int n;
-+ int n, ret;
- int64_t index_in_cluster;
- uint64_t cluster_offset;
- VmdkMetaData m_data;
-@@ -869,13 +873,14 @@ static int vmdk_write(BlockDriverState *
- if (!extent) {
- return -EIO;
- }
-- cluster_offset = get_cluster_offset(
-+ ret = get_cluster_offset(
- bs,
- extent,
- &m_data,
-- sector_num << 9, 1);
-- if (!cluster_offset) {
-- return -1;
-+ sector_num << 9, 1,
-+ &cluster_offset);
-+ if (ret) {
-+ return -EINVAL;
- }
- index_in_cluster = sector_num % extent->cluster_sectors;
- n = extent->cluster_sectors - index_in_cluster;
+++ /dev/null
-From e6b783a12f7ff491a1a2147d9fe55b4535aa046e Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 19 Jul 2011 08:38:22 +0800
-Subject: [PATCH 10/12] VMDK: open/read/write for monolithicFlat image
-
-Parse vmdk decriptor file and open mono flat image.
-Read/write the flat extent.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 171 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
- 1 file changed, 158 insertions(+), 13 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -65,6 +65,7 @@ typedef struct VmdkExtent {
- bool flat;
- int64_t sectors;
- int64_t end_sector;
-+ int64_t flat_start_offset;
- int64_t l1_table_offset;
- int64_t l1_backup_table_offset;
- uint32_t *l1_table;
-@@ -407,9 +408,10 @@ fail:
- static int vmdk_parent_open(BlockDriverState *bs)
- {
- char *p_name;
-- char desc[DESC_SIZE];
-+ char desc[DESC_SIZE + 1];
- BDRVVmdkState *s = bs->opaque;
-
-+ desc[DESC_SIZE] = '\0';
- if (bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE) != DESC_SIZE) {
- return -1;
- }
-@@ -584,6 +586,144 @@ static int vmdk_open_vmdk4(BlockDriverSt
- return ret;
- }
-
-+/* find an option value out of descriptor file */
-+static int vmdk_parse_description(const char *desc, const char *opt_name,
-+ char *buf, int buf_size)
-+{
-+ char *opt_pos, *opt_end;
-+ const char *end = desc + strlen(desc);
-+
-+ opt_pos = strstr(desc, opt_name);
-+ if (!opt_pos) {
-+ return -1;
-+ }
-+ /* Skip "=\"" following opt_name */
-+ opt_pos += strlen(opt_name) + 2;
-+ if (opt_pos >= end) {
-+ return -1;
-+ }
-+ opt_end = opt_pos;
-+ while (opt_end < end && *opt_end != '"') {
-+ opt_end++;
-+ }
-+ if (opt_end == end || buf_size < opt_end - opt_pos + 1) {
-+ return -1;
-+ }
-+ pstrcpy(buf, opt_end - opt_pos + 1, opt_pos);
-+ return 0;
-+}
-+
-+static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
-+ const char *desc_file_path)
-+{
-+ int ret;
-+ char access[11];
-+ char type[11];
-+ char fname[512];
-+ const char *p = desc;
-+ int64_t sectors = 0;
-+ int64_t flat_offset;
-+
-+ while (*p) {
-+ /* parse extent line:
-+ * RW [size in sectors] FLAT "file-name.vmdk" OFFSET
-+ * or
-+ * RW [size in sectors] SPARSE "file-name.vmdk"
-+ */
-+ flat_offset = -1;
-+ ret = sscanf(p, "%10s %" SCNd64 " %10s %511s %" SCNd64,
-+ access, §ors, type, fname, &flat_offset);
-+ if (ret < 4 || strcmp(access, "RW")) {
-+ goto next_line;
-+ } else if (!strcmp(type, "FLAT")) {
-+ if (ret != 5 || flat_offset < 0) {
-+ return -EINVAL;
-+ }
-+ } else if (ret != 4) {
-+ return -EINVAL;
-+ }
-+
-+ /* trim the quotation marks around */
-+ if (fname[0] == '"') {
-+ memmove(fname, fname + 1, strlen(fname));
-+ if (strlen(fname) <= 1 || fname[strlen(fname) - 1] != '"') {
-+ return -EINVAL;
-+ }
-+ fname[strlen(fname) - 1] = '\0';
-+ }
-+ if (sectors <= 0 ||
-+ (strcmp(type, "FLAT") && strcmp(type, "SPARSE")) ||
-+ (strcmp(access, "RW"))) {
-+ goto next_line;
-+ }
-+
-+ /* save to extents array */
-+ if (!strcmp(type, "FLAT")) {
-+ /* FLAT extent */
-+ char extent_path[PATH_MAX];
-+ BlockDriverState *extent_file;
-+ VmdkExtent *extent;
-+
-+ path_combine(extent_path, sizeof(extent_path),
-+ desc_file_path, fname);
-+ ret = bdrv_file_open(&extent_file, extent_path, bs->open_flags);
-+ if (ret) {
-+ return ret;
-+ }
-+ extent = vmdk_add_extent(bs, extent_file, true, sectors,
-+ 0, 0, 0, 0, sectors);
-+ extent->flat_start_offset = flat_offset;
-+ } else {
-+ /* SPARSE extent, not supported for now */
-+ fprintf(stderr,
-+ "VMDK: Not supported extent type \"%s\""".\n", type);
-+ return -ENOTSUP;
-+ }
-+next_line:
-+ /* move to next line */
-+ while (*p && *p != '\n') {
-+ p++;
-+ }
-+ p++;
-+ }
-+ return 0;
-+}
-+
-+static int vmdk_open_desc_file(BlockDriverState *bs, int flags)
-+{
-+ int ret;
-+ char buf[2048];
-+ char ct[128];
-+ BDRVVmdkState *s = bs->opaque;
-+
-+ ret = bdrv_pread(bs->file, 0, buf, sizeof(buf));
-+ if (ret < 0) {
-+ return ret;
-+ }
-+ buf[2047] = '\0';
-+ if (vmdk_parse_description(buf, "createType", ct, sizeof(ct))) {
-+ return -EINVAL;
-+ }
-+ if (strcmp(ct, "monolithicFlat")) {
-+ fprintf(stderr,
-+ "VMDK: Not supported image type \"%s\""".\n", ct);
-+ return -ENOTSUP;
-+ }
-+ s->desc_offset = 0;
-+ ret = vmdk_parse_extents(buf, bs, bs->file->filename);
-+ if (ret) {
-+ return ret;
-+ }
-+
-+ /* try to open parent images, if exist */
-+ if (vmdk_parent_open(bs)) {
-+ qemu_free(s->extents);
-+ return -EINVAL;
-+ }
-+ s->parent_cid = vmdk_read_cid(bs, 1);
-+ return 0;
-+}
-+
- static int vmdk_open(BlockDriverState *bs, int flags)
- {
- uint32_t magic;
-@@ -598,7 +738,7 @@ static int vmdk_open(BlockDriverState *b
- } else if (magic == VMDK4_MAGIC) {
- return vmdk_open_vmdk4(bs, flags);
- } else {
-- return -EINVAL;
-+ return vmdk_open_desc_file(bs, flags);
- }
- }
-
-@@ -679,7 +819,7 @@ static int get_cluster_offset(BlockDrive
- if (m_data)
- m_data->valid = 0;
- if (extent->flat) {
-- *cluster_offset = 0;
-+ *cluster_offset = extent->flat_start_offset;
- return 0;
- }
-
-@@ -832,16 +972,20 @@ static int vmdk_read(BlockDriverState *b
- /* if not allocated, try to read from parent image, if exist */
- if (bs->backing_hd) {
- if (!vmdk_is_cid_valid(bs))
-- return -1;
-+ return -EINVAL;
- ret = bdrv_read(bs->backing_hd, sector_num, buf, n);
- if (ret < 0)
-- return -1;
-+ return ret;
- } else {
- memset(buf, 0, 512 * n);
- }
- } else {
-- if(bdrv_pread(bs->file, cluster_offset + index_in_cluster * 512, buf, n * 512) != n * 512)
-- return -1;
-+ ret = bdrv_pread(extent->file,
-+ cluster_offset + index_in_cluster * 512,
-+ buf, n * 512);
-+ if (ret < 0) {
-+ return ret;
-+ }
- }
- nb_sectors -= n;
- sector_num += n;
-@@ -865,7 +1009,7 @@ static int vmdk_write(BlockDriverState *
- "(VMDK) Wrong offset: sector_num=0x%" PRIx64
- " total_sectors=0x%" PRIx64 "\n",
- sector_num, bs->total_sectors);
-- return -1;
-+ return -EIO;
- }
-
- while (nb_sectors > 0) {
-@@ -888,16 +1032,17 @@ static int vmdk_write(BlockDriverState *
- n = nb_sectors;
- }
-
-- if (bdrv_pwrite(bs->file,
-+ ret = bdrv_pwrite(extent->file,
- cluster_offset + index_in_cluster * 512,
-- buf, n * 512)
-- != n * 512) {
-- return -1;
-+ buf,
-+ n * 512);
-+ if (ret < 0) {
-+ return ret;
- }
- if (m_data.valid) {
- /* update L2 tables */
- if (vmdk_L2update(extent, &m_data) == -1) {
-- return -1;
-+ return -EIO;
- }
- }
- nb_sectors -= n;
+++ /dev/null
-From 0d0f2ba577bd05491b5954751787f8b969ca1ec3 Mon Sep 17 00:00:00 2001
-From: Fam Zheng <famcool@gmail.com>
-Date: Tue, 19 Jul 2011 08:45:23 +0800
-Subject: [PATCH 11/12] VMDK: create different subformats
-
-Add create option 'format', with enums:
- monolithicSparse
- monolithicFlat
- twoGbMaxExtentSparse
- twoGbMaxExtentFlat
-Each creates a subformat image file. The default is monolithicSparse.
-
-Signed-off-by: Fam Zheng <famcool@gmail.com>
-Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
-Signed-off-by: Kevin Wolf <kwolf@redhat.com>
----
- block/vmdk.c | 503 ++++++++++++++++++++++++++++++++---------------------------
- block_int.h | 1 +
- 2 files changed, 275 insertions(+), 229 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -156,8 +156,9 @@ static int vmdk_probe(const uint8_t *buf
- #define CHECK_CID 1
-
- #define SECTOR_SIZE 512
--#define DESC_SIZE 20*SECTOR_SIZE // 20 sectors of 512 bytes each
--#define HEADER_SIZE 512 // first sector of 512 bytes
-+#define DESC_SIZE (20 * SECTOR_SIZE) /* 20 sectors of 512 bytes each */
-+#define BUF_SIZE 4096
-+#define HEADER_SIZE 512 /* first sector of 512 bytes */
-
- static void vmdk_free_extents(BlockDriverState *bs)
- {
-@@ -243,168 +244,6 @@ static int vmdk_is_cid_valid(BlockDriver
- return 1;
- }
-
--static int vmdk_snapshot_create(const char *filename, const char *backing_file)
--{
-- int snp_fd, p_fd;
-- int ret;
-- uint32_t p_cid;
-- char *p_name, *gd_buf, *rgd_buf;
-- const char *real_filename, *temp_str;
-- VMDK4Header header;
-- uint32_t gde_entries, gd_size;
-- int64_t gd_offset, rgd_offset, capacity, gt_size;
-- char p_desc[DESC_SIZE], s_desc[DESC_SIZE], hdr[HEADER_SIZE];
-- static const char desc_template[] =
-- "# Disk DescriptorFile\n"
-- "version=1\n"
-- "CID=%x\n"
-- "parentCID=%x\n"
-- "createType=\"monolithicSparse\"\n"
-- "parentFileNameHint=\"%s\"\n"
-- "\n"
-- "# Extent description\n"
-- "RW %u SPARSE \"%s\"\n"
-- "\n"
-- "# The Disk Data Base \n"
-- "#DDB\n"
-- "\n";
--
-- snp_fd = open(filename, O_RDWR | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE, 0644);
-- if (snp_fd < 0)
-- return -errno;
-- p_fd = open(backing_file, O_RDONLY | O_BINARY | O_LARGEFILE);
-- if (p_fd < 0) {
-- close(snp_fd);
-- return -errno;
-- }
--
-- /* read the header */
-- if (lseek(p_fd, 0x0, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail;
-- }
-- if (read(p_fd, hdr, HEADER_SIZE) != HEADER_SIZE) {
-- ret = -errno;
-- goto fail;
-- }
--
-- /* write the header */
-- if (lseek(snp_fd, 0x0, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail;
-- }
-- if (write(snp_fd, hdr, HEADER_SIZE) == -1) {
-- ret = -errno;
-- goto fail;
-- }
--
-- memset(&header, 0, sizeof(header));
-- memcpy(&header,&hdr[4], sizeof(header)); // skip the VMDK4_MAGIC
--
-- if (ftruncate(snp_fd, header.grain_offset << 9)) {
-- ret = -errno;
-- goto fail;
-- }
-- /* the descriptor offset = 0x200 */
-- if (lseek(p_fd, 0x200, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail;
-- }
-- if (read(p_fd, p_desc, DESC_SIZE) != DESC_SIZE) {
-- ret = -errno;
-- goto fail;
-- }
--
-- if ((p_name = strstr(p_desc,"CID")) != NULL) {
-- p_name += sizeof("CID");
-- sscanf(p_name,"%x",&p_cid);
-- }
--
-- real_filename = filename;
-- if ((temp_str = strrchr(real_filename, '\\')) != NULL)
-- real_filename = temp_str + 1;
-- if ((temp_str = strrchr(real_filename, '/')) != NULL)
-- real_filename = temp_str + 1;
-- if ((temp_str = strrchr(real_filename, ':')) != NULL)
-- real_filename = temp_str + 1;
--
-- snprintf(s_desc, sizeof(s_desc), desc_template, p_cid, p_cid, backing_file,
-- (uint32_t)header.capacity, real_filename);
--
-- /* write the descriptor */
-- if (lseek(snp_fd, 0x200, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail;
-- }
-- if (write(snp_fd, s_desc, strlen(s_desc)) == -1) {
-- ret = -errno;
-- goto fail;
-- }
--
-- gd_offset = header.gd_offset * SECTOR_SIZE; // offset of GD table
-- rgd_offset = header.rgd_offset * SECTOR_SIZE; // offset of RGD table
-- capacity = header.capacity * SECTOR_SIZE; // Extent size
-- /*
-- * Each GDE span 32M disk, means:
-- * 512 GTE per GT, each GTE points to grain
-- */
-- gt_size = (int64_t)header.num_gtes_per_gte * header.granularity * SECTOR_SIZE;
-- if (!gt_size) {
-- ret = -EINVAL;
-- goto fail;
-- }
-- gde_entries = (uint32_t)(capacity / gt_size); // number of gde/rgde
-- gd_size = gde_entries * sizeof(uint32_t);
--
-- /* write RGD */
-- rgd_buf = qemu_malloc(gd_size);
-- if (lseek(p_fd, rgd_offset, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail_rgd;
-- }
-- if (read(p_fd, rgd_buf, gd_size) != gd_size) {
-- ret = -errno;
-- goto fail_rgd;
-- }
-- if (lseek(snp_fd, rgd_offset, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail_rgd;
-- }
-- if (write(snp_fd, rgd_buf, gd_size) == -1) {
-- ret = -errno;
-- goto fail_rgd;
-- }
--
-- /* write GD */
-- gd_buf = qemu_malloc(gd_size);
-- if (lseek(p_fd, gd_offset, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail_gd;
-- }
-- if (read(p_fd, gd_buf, gd_size) != gd_size) {
-- ret = -errno;
-- goto fail_gd;
-- }
-- if (lseek(snp_fd, gd_offset, SEEK_SET) == -1) {
-- ret = -errno;
-- goto fail_gd;
-- }
-- if (write(snp_fd, gd_buf, gd_size) == -1) {
-- ret = -errno;
-- goto fail_gd;
-- }
-- ret = 0;
--
--fail_gd:
-- qemu_free(gd_buf);
--fail_rgd:
-- qemu_free(rgd_buf);
--fail:
-- close(p_fd);
-- close(snp_fd);
-- return ret;
--}
--
- static int vmdk_parent_open(BlockDriverState *bs)
- {
- char *p_name;
-@@ -1058,68 +897,40 @@ static int vmdk_write(BlockDriverState *
- return 0;
- }
-
--static int vmdk_create(const char *filename, QEMUOptionParameter *options)
-+
-+static int vmdk_create_extent(const char *filename, int64_t filesize, bool flat)
- {
-- int fd, i;
-+ int ret, i;
-+ int fd = 0;
- VMDK4Header header;
- uint32_t tmp, magic, grains, gd_size, gt_size, gt_count;
-- static const char desc_template[] =
-- "# Disk DescriptorFile\n"
-- "version=1\n"
-- "CID=%x\n"
-- "parentCID=ffffffff\n"
-- "createType=\"monolithicSparse\"\n"
-- "\n"
-- "# Extent description\n"
-- "RW %" PRId64 " SPARSE \"%s\"\n"
-- "\n"
-- "# The Disk Data Base \n"
-- "#DDB\n"
-- "\n"
-- "ddb.virtualHWVersion = \"%d\"\n"
-- "ddb.geometry.cylinders = \"%" PRId64 "\"\n"
-- "ddb.geometry.heads = \"16\"\n"
-- "ddb.geometry.sectors = \"63\"\n"
-- "ddb.adapterType = \"ide\"\n";
-- char desc[1024];
-- const char *real_filename, *temp_str;
-- int64_t total_size = 0;
-- const char *backing_file = NULL;
-- int flags = 0;
-- int ret;
-
-- // Read out options
-- while (options && options->name) {
-- if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
-- total_size = options->value.n / 512;
-- } else if (!strcmp(options->name, BLOCK_OPT_BACKING_FILE)) {
-- backing_file = options->value.s;
-- } else if (!strcmp(options->name, BLOCK_OPT_COMPAT6)) {
-- flags |= options->value.n ? BLOCK_FLAG_COMPAT6: 0;
-- }
-- options++;
-+ fd = open(
-+ filename,
-+ O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE,
-+ 0644);
-+ if (fd < 0) {
-+ return -errno;
- }
--
-- /* XXX: add support for backing file */
-- if (backing_file) {
-- return vmdk_snapshot_create(filename, backing_file);
-+ if (flat) {
-+ ret = ftruncate(fd, filesize);
-+ if (ret < 0) {
-+ ret = -errno;
-+ }
-+ goto exit;
- }
--
-- fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE,
-- 0644);
-- if (fd < 0)
-- return -errno;
- magic = cpu_to_be32(VMDK4_MAGIC);
- memset(&header, 0, sizeof(header));
- header.version = 1;
- header.flags = 3; /* ?? */
-- header.capacity = total_size;
-+ header.capacity = filesize / 512;
- header.granularity = 128;
- header.num_gtes_per_gte = 512;
-
-- grains = (total_size + header.granularity - 1) / header.granularity;
-+ grains = (filesize / 512 + header.granularity - 1) / header.granularity;
- gt_size = ((header.num_gtes_per_gte * sizeof(uint32_t)) + 511) >> 9;
-- gt_count = (grains + header.num_gtes_per_gte - 1) / header.num_gtes_per_gte;
-+ gt_count =
-+ (grains + header.num_gtes_per_gte - 1) / header.num_gtes_per_gte;
- gd_size = (gt_count * sizeof(uint32_t) + 511) >> 9;
-
- header.desc_offset = 1;
-@@ -1130,7 +941,6 @@ static int vmdk_create(const char *filen
- ((header.gd_offset + gd_size + (gt_size * gt_count) +
- header.granularity - 1) / header.granularity) *
- header.granularity;
--
- /* swap endianness for all header fields */
- header.version = cpu_to_le32(header.version);
- header.flags = cpu_to_le32(header.flags);
-@@ -1188,27 +998,255 @@ static int vmdk_create(const char *filen
- }
- }
-
-- /* compose the descriptor */
-- real_filename = filename;
-- if ((temp_str = strrchr(real_filename, '\\')) != NULL)
-- real_filename = temp_str + 1;
-- if ((temp_str = strrchr(real_filename, '/')) != NULL)
-- real_filename = temp_str + 1;
-- if ((temp_str = strrchr(real_filename, ':')) != NULL)
-- real_filename = temp_str + 1;
-- snprintf(desc, sizeof(desc), desc_template, (unsigned int)time(NULL),
-- total_size, real_filename,
-- (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
-- total_size / (int64_t)(63 * 16));
-+ ret = 0;
-+ exit:
-+ close(fd);
-+ return ret;
-+}
-
-- /* write the descriptor */
-- lseek(fd, le64_to_cpu(header.desc_offset) << 9, SEEK_SET);
-+static int filename_decompose(const char *filename, char *path, char *prefix,
-+ char *postfix, size_t buf_len)
-+{
-+ const char *p, *q;
-+
-+ if (filename == NULL || !strlen(filename)) {
-+ fprintf(stderr, "Vmdk: no filename provided.\n");
-+ return -1;
-+ }
-+ p = strrchr(filename, '/');
-+ if (p == NULL) {
-+ p = strrchr(filename, '\\');
-+ }
-+ if (p == NULL) {
-+ p = strrchr(filename, ':');
-+ }
-+ if (p != NULL) {
-+ p++;
-+ if (p - filename >= buf_len) {
-+ return -1;
-+ }
-+ pstrcpy(path, p - filename + 1, filename);
-+ } else {
-+ p = filename;
-+ path[0] = '\0';
-+ }
-+ q = strrchr(p, '.');
-+ if (q == NULL) {
-+ pstrcpy(prefix, buf_len, p);
-+ postfix[0] = '\0';
-+ } else {
-+ if (q - p >= buf_len) {
-+ return -1;
-+ }
-+ pstrcpy(prefix, q - p + 1, p);
-+ pstrcpy(postfix, buf_len, q);
-+ }
-+ return 0;
-+}
-+
-+static int relative_path(char *dest, int dest_size,
-+ const char *base, const char *target)
-+{
-+ int i = 0;
-+ int n = 0;
-+ const char *p, *q;
-+#ifdef _WIN32
-+ const char *sep = "\\";
-+#else
-+ const char *sep = "/";
-+#endif
-+
-+ if (!(dest && base && target)) {
-+ return -1;
-+ }
-+ if (path_is_absolute(target)) {
-+ dest[dest_size - 1] = '\0';
-+ strncpy(dest, target, dest_size - 1);
-+ return 0;
-+ }
-+ while (base[i] == target[i]) {
-+ i++;
-+ }
-+ p = &base[i];
-+ q = &target[i];
-+ while (*p) {
-+ if (*p == *sep) {
-+ n++;
-+ }
-+ p++;
-+ }
-+ dest[0] = '\0';
-+ for (; n; n--) {
-+ pstrcat(dest, dest_size, "..");
-+ pstrcat(dest, dest_size, sep);
-+ }
-+ pstrcat(dest, dest_size, q);
-+ return 0;
-+}
-+
-+static int vmdk_create(const char *filename, QEMUOptionParameter *options)
-+{
-+ int fd, idx = 0;
-+ char desc[BUF_SIZE];
-+ int64_t total_size = 0, filesize;
-+ const char *backing_file = NULL;
-+ const char *fmt = NULL;
-+ int flags = 0;
-+ int ret = 0;
-+ bool flat, split;
-+ char ext_desc_lines[BUF_SIZE] = "";
-+ char path[PATH_MAX], prefix[PATH_MAX], postfix[PATH_MAX];
-+ const int64_t split_size = 0x80000000; /* VMDK has constant split size */
-+ const char *desc_extent_line;
-+ char parent_desc_line[BUF_SIZE] = "";
-+ uint32_t parent_cid = 0xffffffff;
-+ const char desc_template[] =
-+ "# Disk DescriptorFile\n"
-+ "version=1\n"
-+ "CID=%x\n"
-+ "parentCID=%x\n"
-+ "createType=\"%s\"\n"
-+ "%s"
-+ "\n"
-+ "# Extent description\n"
-+ "%s"
-+ "\n"
-+ "# The Disk Data Base\n"
-+ "#DDB\n"
-+ "\n"
-+ "ddb.virtualHWVersion = \"%d\"\n"
-+ "ddb.geometry.cylinders = \"%" PRId64 "\"\n"
-+ "ddb.geometry.heads = \"16\"\n"
-+ "ddb.geometry.sectors = \"63\"\n"
-+ "ddb.adapterType = \"ide\"\n";
-+
-+ if (filename_decompose(filename, path, prefix, postfix, PATH_MAX)) {
-+ return -EINVAL;
-+ }
-+ /* Read out options */
-+ while (options && options->name) {
-+ if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
-+ total_size = options->value.n;
-+ } else if (!strcmp(options->name, BLOCK_OPT_BACKING_FILE)) {
-+ backing_file = options->value.s;
-+ } else if (!strcmp(options->name, BLOCK_OPT_COMPAT6)) {
-+ flags |= options->value.n ? BLOCK_FLAG_COMPAT6 : 0;
-+ } else if (!strcmp(options->name, BLOCK_OPT_SUBFMT)) {
-+ fmt = options->value.s;
-+ }
-+ options++;
-+ }
-+ if (!fmt) {
-+ /* Default format to monolithicSparse */
-+ fmt = "monolithicSparse";
-+ } else if (strcmp(fmt, "monolithicFlat") &&
-+ strcmp(fmt, "monolithicSparse") &&
-+ strcmp(fmt, "twoGbMaxExtentSparse") &&
-+ strcmp(fmt, "twoGbMaxExtentFlat")) {
-+ fprintf(stderr, "VMDK: Unknown subformat: %s\n", fmt);
-+ return -EINVAL;
-+ }
-+ split = !(strcmp(fmt, "twoGbMaxExtentFlat") &&
-+ strcmp(fmt, "twoGbMaxExtentSparse"));
-+ flat = !(strcmp(fmt, "monolithicFlat") &&
-+ strcmp(fmt, "twoGbMaxExtentFlat"));
-+ if (flat) {
-+ desc_extent_line = "RW %lld FLAT \"%s\" 0\n";
-+ } else {
-+ desc_extent_line = "RW %lld SPARSE \"%s\"\n";
-+ }
-+ if (flat && backing_file) {
-+ /* not supporting backing file for flat image */
-+ return -ENOTSUP;
-+ }
-+ if (backing_file) {
-+ char parent_filename[PATH_MAX];
-+ BlockDriverState *bs = bdrv_new("");
-+ ret = bdrv_open(bs, backing_file, 0, NULL);
-+ if (ret != 0) {
-+ bdrv_delete(bs);
-+ return ret;
-+ }
-+ if (strcmp(bs->drv->format_name, "vmdk")) {
-+ bdrv_delete(bs);
-+ return -EINVAL;
-+ }
-+ filesize = bdrv_getlength(bs);
-+ parent_cid = vmdk_read_cid(bs, 0);
-+ bdrv_delete(bs);
-+ relative_path(parent_filename, sizeof(parent_filename),
-+ filename, backing_file);
-+ snprintf(parent_desc_line, sizeof(parent_desc_line),
-+ "parentFileNameHint=\"%s\"", parent_filename);
-+ }
-+
-+ /* Create extents */
-+ filesize = total_size;
-+ while (filesize > 0) {
-+ char desc_line[BUF_SIZE];
-+ char ext_filename[PATH_MAX];
-+ char desc_filename[PATH_MAX];
-+ int64_t size = filesize;
-+
-+ if (split && size > split_size) {
-+ size = split_size;
-+ }
-+ if (split) {
-+ snprintf(desc_filename, sizeof(desc_filename), "%s-%c%03d%s",
-+ prefix, flat ? 'f' : 's', ++idx, postfix);
-+ } else if (flat) {
-+ snprintf(desc_filename, sizeof(desc_filename), "%s-flat%s",
-+ prefix, postfix);
-+ } else {
-+ snprintf(desc_filename, sizeof(desc_filename), "%s%s",
-+ prefix, postfix);
-+ }
-+ snprintf(ext_filename, sizeof(ext_filename), "%s%s",
-+ path, desc_filename);
-+
-+ if (vmdk_create_extent(ext_filename, size, flat)) {
-+ return -EINVAL;
-+ }
-+ filesize -= size;
-+
-+ /* Format description line */
-+ snprintf(desc_line, sizeof(desc_line),
-+ desc_extent_line, size / 512, desc_filename);
-+ pstrcat(ext_desc_lines, sizeof(ext_desc_lines), desc_line);
-+ }
-+ /* generate descriptor file */
-+ snprintf(desc, sizeof(desc), desc_template,
-+ (unsigned int)time(NULL),
-+ parent_cid,
-+ fmt,
-+ parent_desc_line,
-+ ext_desc_lines,
-+ (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
-+ total_size / (int64_t)(63 * 16 * 512));
-+ if (split || flat) {
-+ fd = open(
-+ filename,
-+ O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE,
-+ 0644);
-+ } else {
-+ fd = open(
-+ filename,
-+ O_WRONLY | O_BINARY | O_LARGEFILE,
-+ 0644);
-+ }
-+ if (fd < 0) {
-+ return -errno;
-+ }
-+ /* the descriptor offset = 0x200 */
-+ if (!split && !flat && 0x200 != lseek(fd, 0x200, SEEK_SET)) {
-+ ret = -errno;
-+ goto exit;
-+ }
- ret = qemu_write_full(fd, desc, strlen(desc));
- if (ret != strlen(desc)) {
- ret = -errno;
- goto exit;
- }
--
- ret = 0;
- exit:
- close(fd);
-@@ -1252,6 +1290,13 @@ static QEMUOptionParameter vmdk_create_o
- .type = OPT_FLAG,
- .help = "VMDK version 6 image"
- },
-+ {
-+ .name = BLOCK_OPT_SUBFMT,
-+ .type = OPT_STRING,
-+ .help =
-+ "VMDK flat extent format, can be one of "
-+ "{monolithicSparse (default) | monolithicFlat | twoGbMaxExtentSparse | twoGbMaxExtentFlat} "
-+ },
- { NULL }
- };
-
---- a/block_int.h
-+++ b/block_int.h
-@@ -39,6 +39,7 @@
- #define BLOCK_OPT_CLUSTER_SIZE "cluster_size"
- #define BLOCK_OPT_TABLE_SIZE "table_size"
- #define BLOCK_OPT_PREALLOC "preallocation"
-+#define BLOCK_OPT_SUBFMT "subformat"
-
- typedef struct AIOPool {
- void (*cancel)(BlockDriverAIOCB *acb);
+++ /dev/null
-From 5483df4df2729a5d1e4888a48039b1cd90438480 Mon Sep 17 00:00:00 2001
-From: Othmar Pasteka <pasteka@kabsi.at>
-Date: Wed, 30 Jan 2013 00:26:52 +0100
-Subject: [PATCH 12/12] vmdk: Allow selecting SCSI adapter in image creation
-
-Introduce a new option "adapter_type" when converting to vmdk images.
-It can be one of the following: ide (default), buslogic, lsilogic
-or legacyESX (according to the vmdk spec from vmware).
-
-In case of a non-ide adapter, heads is set to 255 instead of the 16.
-The latter is used for "ide".
-
-Also see LP#545089
-
-Signed-off-by: Othmar Pasteka <pasteka@kabsi.at>
-Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
----
- block/vmdk.c | 31 ++++++++++++++++++++++++++++---
- block_int.h | 1 +
- 2 files changed, 29 insertions(+), 3 deletions(-)
-
---- a/block/vmdk.c
-+++ b/block/vmdk.c
-@@ -1089,6 +1089,7 @@ static int vmdk_create(const char *filen
- int fd, idx = 0;
- char desc[BUF_SIZE];
- int64_t total_size = 0, filesize;
-+ const char *adapter_type = NULL;
- const char *backing_file = NULL;
- const char *fmt = NULL;
- int flags = 0;
-@@ -1100,6 +1101,7 @@ static int vmdk_create(const char *filen
- const char *desc_extent_line;
- char parent_desc_line[BUF_SIZE] = "";
- uint32_t parent_cid = 0xffffffff;
-+ uint32_t number_heads = 16;
- const char desc_template[] =
- "# Disk DescriptorFile\n"
- "version=1\n"
-@@ -1116,9 +1118,9 @@ static int vmdk_create(const char *filen
- "\n"
- "ddb.virtualHWVersion = \"%d\"\n"
- "ddb.geometry.cylinders = \"%" PRId64 "\"\n"
-- "ddb.geometry.heads = \"16\"\n"
-+ "ddb.geometry.heads = \"%d\"\n"
- "ddb.geometry.sectors = \"63\"\n"
-- "ddb.adapterType = \"ide\"\n";
-+ "ddb.adapterType = \"%s\"\n";
-
- if (filename_decompose(filename, path, prefix, postfix, PATH_MAX)) {
- return -EINVAL;
-@@ -1127,6 +1129,8 @@ static int vmdk_create(const char *filen
- while (options && options->name) {
- if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
- total_size = options->value.n;
-+ } else if (!strcmp(options->name, BLOCK_OPT_ADAPTER_TYPE)) {
-+ adapter_type = options->value.s;
- } else if (!strcmp(options->name, BLOCK_OPT_BACKING_FILE)) {
- backing_file = options->value.s;
- } else if (!strcmp(options->name, BLOCK_OPT_COMPAT6)) {
-@@ -1136,6 +1140,20 @@ static int vmdk_create(const char *filen
- }
- options++;
- }
-+ if (!adapter_type) {
-+ adapter_type = "ide";
-+ } else if (strcmp(adapter_type, "ide") &&
-+ strcmp(adapter_type, "buslogic") &&
-+ strcmp(adapter_type, "lsilogic") &&
-+ strcmp(adapter_type, "legacyESX")) {
-+ fprintf(stderr, "VMDK: Unknown adapter type: '%s'.\n", adapter_type);
-+ return -EINVAL;
-+ }
-+ if (strcmp(adapter_type, "ide") != 0) {
-+ /* that's the number of heads with which vmware operates when
-+ creating, exporting, etc. vmdk files with a non-ide adapter type */
-+ number_heads = 255;
-+ }
- if (!fmt) {
- /* Default format to monolithicSparse */
- fmt = "monolithicSparse";
-@@ -1222,7 +1240,8 @@ static int vmdk_create(const char *filen
- parent_desc_line,
- ext_desc_lines,
- (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
-- total_size / (int64_t)(63 * 16 * 512));
-+ total_size / (int64_t)(63 * number_heads * 512), number_heads,
-+ adapter_type);
- if (split || flat) {
- fd = open(
- filename,
-@@ -1281,6 +1300,12 @@ static QEMUOptionParameter vmdk_create_o
- .help = "Virtual disk size"
- },
- {
-+ .name = BLOCK_OPT_ADAPTER_TYPE,
-+ .type = OPT_STRING,
-+ .help = "Virtual adapter type, can be one of "
-+ "ide (default), lsilogic, buslogic or legacyESX"
-+ },
-+ {
- .name = BLOCK_OPT_BACKING_FILE,
- .type = OPT_STRING,
- .help = "File name of a base image"
---- a/block_int.h
-+++ b/block_int.h
-@@ -40,6 +40,7 @@
- #define BLOCK_OPT_TABLE_SIZE "table_size"
- #define BLOCK_OPT_PREALLOC "preallocation"
- #define BLOCK_OPT_SUBFMT "subformat"
-+#define BLOCK_OPT_ADAPTER_TYPE "adapter_type"
-
- typedef struct AIOPool {
- void (*cancel)(BlockDriverAIOCB *acb);
projects / openwrt / staging / adrian.git / commitdiff