* THE SOFTWARE.
*/
-#include "qemu-common.h"
+#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "block/block_int.h"
+#include "sysemu/block-backend.h"
#include "qapi/qmp/qerror.h"
#include "qemu/error-report.h"
#include "qemu/module.h"
#include "migration/migration.h"
+#include "qemu/cutils.h"
#include <zlib.h>
#include <glib.h>
#define L2_CACHE_SIZE 16
typedef struct VmdkExtent {
- BlockDriverState *file;
+ BdrvChild *file;
bool flat;
bool compressed;
bool has_marker;
g_free(e->l1_backup_table);
g_free(e->type);
if (e->file != bs->file) {
- bdrv_unref(e->file);
+ bdrv_unref_child(bs, e->file);
}
}
g_free(s->extents);
static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
{
- char desc[DESC_SIZE];
+ char *desc;
uint32_t cid = 0xffffffff;
const char *p_name, *cid_str;
size_t cid_str_size;
BDRVVmdkState *s = bs->opaque;
int ret;
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE);
+ desc = g_malloc0(DESC_SIZE);
+ ret = bdrv_pread(bs->file->bs, s->desc_offset, desc, DESC_SIZE);
if (ret < 0) {
+ g_free(desc);
return 0;
}
sscanf(p_name, "%" SCNx32, &cid);
}
+ g_free(desc);
return cid;
}
static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid)
{
- char desc[DESC_SIZE], tmp_desc[DESC_SIZE];
+ char *desc, *tmp_desc;
char *p_name, *tmp_str;
BDRVVmdkState *s = bs->opaque;
- int ret;
+ int ret = 0;
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE);
+ desc = g_malloc0(DESC_SIZE);
+ tmp_desc = g_malloc0(DESC_SIZE);
+ ret = bdrv_pread(bs->file->bs, s->desc_offset, desc, DESC_SIZE);
if (ret < 0) {
- return ret;
+ goto out;
}
desc[DESC_SIZE - 1] = '\0';
tmp_str = strstr(desc, "parentCID");
if (tmp_str == NULL) {
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}
- pstrcpy(tmp_desc, sizeof(tmp_desc), tmp_str);
+ pstrcpy(tmp_desc, DESC_SIZE, tmp_str);
p_name = strstr(desc, "CID");
if (p_name != NULL) {
p_name += sizeof("CID");
- snprintf(p_name, sizeof(desc) - (p_name - desc), "%" PRIx32 "\n", cid);
- pstrcat(desc, sizeof(desc), tmp_desc);
+ snprintf(p_name, DESC_SIZE - (p_name - desc), "%" PRIx32 "\n", cid);
+ pstrcat(desc, DESC_SIZE, tmp_desc);
}
- ret = bdrv_pwrite_sync(bs->file, s->desc_offset, desc, DESC_SIZE);
- if (ret < 0) {
- return ret;
- }
+ ret = bdrv_pwrite_sync(bs->file->bs, s->desc_offset, desc, DESC_SIZE);
- return 0;
+out:
+ g_free(desc);
+ g_free(tmp_desc);
+ return ret;
}
static int vmdk_is_cid_valid(BlockDriverState *bs)
{
BDRVVmdkState *s = bs->opaque;
- BlockDriverState *p_bs = bs->backing_hd;
uint32_t cur_pcid;
- if (!s->cid_checked && p_bs) {
+ if (!s->cid_checked && bs->backing) {
+ BlockDriverState *p_bs = bs->backing->bs;
+
cur_pcid = vmdk_read_cid(p_bs, 0);
if (s->parent_cid != cur_pcid) {
/* CID not valid */
static int vmdk_parent_open(BlockDriverState *bs)
{
char *p_name;
- char desc[DESC_SIZE + 1];
+ char *desc;
BDRVVmdkState *s = bs->opaque;
int ret;
- desc[DESC_SIZE] = '\0';
- ret = bdrv_pread(bs->file, s->desc_offset, desc, DESC_SIZE);
+ desc = g_malloc0(DESC_SIZE + 1);
+ ret = bdrv_pread(bs->file->bs, s->desc_offset, desc, DESC_SIZE);
if (ret < 0) {
- return ret;
+ goto out;
}
+ ret = 0;
p_name = strstr(desc, "parentFileNameHint");
if (p_name != NULL) {
p_name += sizeof("parentFileNameHint") + 1;
end_name = strchr(p_name, '\"');
if (end_name == NULL) {
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}
if ((end_name - p_name) > sizeof(bs->backing_file) - 1) {
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}
pstrcpy(bs->backing_file, end_name - p_name + 1, p_name);
}
- return 0;
+out:
+ g_free(desc);
+ return ret;
}
/* Create and append extent to the extent array. Return the added VmdkExtent
* address. return NULL if allocation failed. */
static int vmdk_add_extent(BlockDriverState *bs,
- BlockDriverState *file, bool flat, int64_t sectors,
+ BdrvChild *file, bool flat, int64_t sectors,
int64_t l1_offset, int64_t l1_backup_offset,
uint32_t l1_size,
int l2_size, uint64_t cluster_sectors,
return -EFBIG;
}
- nb_sectors = bdrv_nb_sectors(file);
+ nb_sectors = bdrv_nb_sectors(file->bs);
if (nb_sectors < 0) {
return nb_sectors;
}
return -ENOMEM;
}
- ret = bdrv_pread(extent->file,
+ ret = bdrv_pread(extent->file->bs,
extent->l1_table_offset,
extent->l1_table,
l1_size);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Could not read l1 table from extent '%s'",
- extent->file->filename);
+ extent->file->bs->filename);
goto fail_l1;
}
for (i = 0; i < extent->l1_size; i++) {
ret = -ENOMEM;
goto fail_l1;
}
- ret = bdrv_pread(extent->file,
+ ret = bdrv_pread(extent->file->bs,
extent->l1_backup_table_offset,
extent->l1_backup_table,
l1_size);
if (ret < 0) {
error_setg_errno(errp, -ret,
"Could not read l1 backup table from extent '%s'",
- extent->file->filename);
+ extent->file->bs->filename);
goto fail_l1b;
}
for (i = 0; i < extent->l1_size; i++) {
}
static int vmdk_open_vmfs_sparse(BlockDriverState *bs,
- BlockDriverState *file,
+ BdrvChild *file,
int flags, Error **errp)
{
int ret;
VMDK3Header header;
VmdkExtent *extent;
- ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header));
+ ret = bdrv_pread(file->bs, sizeof(magic), &header, sizeof(header));
if (ret < 0) {
error_setg_errno(errp, -ret,
"Could not read header from file '%s'",
- file->filename);
+ file->bs->filename);
return ret;
}
ret = vmdk_add_extent(bs, file, false,
}
static int vmdk_open_vmdk4(BlockDriverState *bs,
- BlockDriverState *file,
+ BdrvChild *file,
int flags, QDict *options, Error **errp)
{
int ret;
VmdkExtent *extent;
BDRVVmdkState *s = bs->opaque;
int64_t l1_backup_offset = 0;
+ bool compressed;
- ret = bdrv_pread(file, sizeof(magic), &header, sizeof(header));
+ ret = bdrv_pread(file->bs, sizeof(magic), &header, sizeof(header));
if (ret < 0) {
error_setg_errno(errp, -ret,
"Could not read header from file '%s'",
- file->filename);
+ file->bs->filename);
return -EINVAL;
}
if (header.capacity == 0) {
uint64_t desc_offset = le64_to_cpu(header.desc_offset);
if (desc_offset) {
- char *buf = vmdk_read_desc(file, desc_offset << 9, errp);
+ char *buf = vmdk_read_desc(file->bs, desc_offset << 9, errp);
if (!buf) {
return -EINVAL;
}
} QEMU_PACKED eos_marker;
} QEMU_PACKED footer;
- ret = bdrv_pread(file,
- bs->file->total_sectors * 512 - 1536,
+ ret = bdrv_pread(file->bs,
+ bs->file->bs->total_sectors * 512 - 1536,
&footer, sizeof(footer));
if (ret < 0) {
error_setg_errno(errp, -ret, "Failed to read footer");
header = footer.header;
}
+ compressed =
+ le16_to_cpu(header.compressAlgorithm) == VMDK4_COMPRESSION_DEFLATE;
if (le32_to_cpu(header.version) > 3) {
- char buf[64];
- snprintf(buf, sizeof(buf), "VMDK version %" PRId32,
- le32_to_cpu(header.version));
- error_setg(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
- bdrv_get_device_or_node_name(bs), "vmdk", buf);
+ error_setg(errp, "Unsupported VMDK version %" PRIu32,
+ le32_to_cpu(header.version));
return -ENOTSUP;
- } else if (le32_to_cpu(header.version) == 3 && (flags & BDRV_O_RDWR)) {
+ } else if (le32_to_cpu(header.version) == 3 && (flags & BDRV_O_RDWR) &&
+ !compressed) {
/* VMware KB 2064959 explains that version 3 added support for
* persistent changed block tracking (CBT), and backup software can
* read it as version=1 if it doesn't care about the changed area
if (le32_to_cpu(header.flags) & VMDK4_FLAG_RGD) {
l1_backup_offset = le64_to_cpu(header.rgd_offset) << 9;
}
- if (bdrv_nb_sectors(file) < le64_to_cpu(header.grain_offset)) {
+ if (bdrv_nb_sectors(file->bs) < le64_to_cpu(header.grain_offset)) {
error_setg(errp, "File truncated, expecting at least %" PRId64 " bytes",
(int64_t)(le64_to_cpu(header.grain_offset)
* BDRV_SECTOR_SIZE));
}
/* Open an extent file and append to bs array */
-static int vmdk_open_sparse(BlockDriverState *bs,
- BlockDriverState *file, int flags,
+static int vmdk_open_sparse(BlockDriverState *bs, BdrvChild *file, int flags,
char *buf, QDict *options, Error **errp)
{
uint32_t magic;
}
}
+static const char *next_line(const char *s)
+{
+ while (*s) {
+ if (*s == '\n') {
+ return s + 1;
+ }
+ s++;
+ }
+ return s;
+}
+
static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
const char *desc_file_path, QDict *options,
Error **errp)
char access[11];
char type[11];
char fname[512];
- const char *p = desc;
+ const char *p, *np;
int64_t sectors = 0;
int64_t flat_offset;
char *extent_path;
- BlockDriverState *extent_file;
+ BdrvChild *extent_file;
BDRVVmdkState *s = bs->opaque;
VmdkExtent *extent;
char extent_opt_prefix[32];
+ Error *local_err = NULL;
- while (*p) {
+ for (p = desc; *p; p = next_line(p)) {
/* parse extent line in one of below formats:
*
* RW [size in sectors] FLAT "file-name.vmdk" OFFSET
matches = sscanf(p, "%10s %" SCNd64 " %10s \"%511[^\n\r\"]\" %" SCNd64,
access, §ors, type, fname, &flat_offset);
if (matches < 4 || strcmp(access, "RW")) {
- goto next_line;
+ continue;
} else if (!strcmp(type, "FLAT")) {
if (matches != 5 || flat_offset < 0) {
- error_setg(errp, "Invalid extent lines: \n%s", p);
- return -EINVAL;
+ goto invalid;
}
} else if (!strcmp(type, "VMFS")) {
if (matches == 4) {
flat_offset = 0;
} else {
- error_setg(errp, "Invalid extent lines:\n%s", p);
- return -EINVAL;
+ goto invalid;
}
} else if (matches != 4) {
- error_setg(errp, "Invalid extent lines:\n%s", p);
- return -EINVAL;
+ goto invalid;
}
if (sectors <= 0 ||
(strcmp(type, "FLAT") && strcmp(type, "SPARSE") &&
strcmp(type, "VMFS") && strcmp(type, "VMFSSPARSE")) ||
(strcmp(access, "RW"))) {
- goto next_line;
+ continue;
}
if (!path_is_absolute(fname) && !path_has_protocol(fname) &&
!desc_file_path[0])
{
error_setg(errp, "Cannot use relative extent paths with VMDK "
- "descriptor file '%s'", bs->file->filename);
+ "descriptor file '%s'", bs->file->bs->filename);
return -EINVAL;
}
extent_path = g_malloc0(PATH_MAX);
path_combine(extent_path, PATH_MAX, desc_file_path, fname);
- extent_file = NULL;
ret = snprintf(extent_opt_prefix, 32, "extents.%d", s->num_extents);
assert(ret < 32);
- ret = bdrv_open_image(&extent_file, extent_path, options,
- extent_opt_prefix, bs, &child_file, false, errp);
+ extent_file = bdrv_open_child(extent_path, options, extent_opt_prefix,
+ bs, &child_file, false, &local_err);
g_free(extent_path);
- if (ret) {
- return ret;
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return -EINVAL;
}
/* save to extents array */
ret = vmdk_add_extent(bs, extent_file, true, sectors,
0, 0, 0, 0, 0, &extent, errp);
if (ret < 0) {
- bdrv_unref(extent_file);
+ bdrv_unref_child(bs, extent_file);
return ret;
}
extent->flat_start_offset = flat_offset << 9;
} else if (!strcmp(type, "SPARSE") || !strcmp(type, "VMFSSPARSE")) {
/* SPARSE extent and VMFSSPARSE extent are both "COWD" sparse file*/
- char *buf = vmdk_read_desc(extent_file, 0, errp);
+ char *buf = vmdk_read_desc(extent_file->bs, 0, errp);
if (!buf) {
ret = -EINVAL;
} else {
}
g_free(buf);
if (ret) {
- bdrv_unref(extent_file);
+ bdrv_unref_child(bs, extent_file);
return ret;
}
extent = &s->extents[s->num_extents - 1];
} else {
error_setg(errp, "Unsupported extent type '%s'", type);
- bdrv_unref(extent_file);
+ bdrv_unref_child(bs, extent_file);
return -ENOTSUP;
}
extent->type = g_strdup(type);
-next_line:
- /* move to next line */
- while (*p) {
- if (*p == '\n') {
- p++;
- break;
- }
- p++;
- }
}
return 0;
+
+invalid:
+ np = next_line(p);
+ assert(np != p);
+ if (np[-1] == '\n') {
+ np--;
+ }
+ error_setg(errp, "Invalid extent line: %.*s", (int)(np - p), p);
+ return -EINVAL;
}
static int vmdk_open_desc_file(BlockDriverState *bs, int flags, char *buf,
}
s->create_type = g_strdup(ct);
s->desc_offset = 0;
- ret = vmdk_parse_extents(buf, bs, bs->file->exact_filename, options, errp);
+ ret = vmdk_parse_extents(buf, bs, bs->file->bs->exact_filename, options,
+ errp);
exit:
return ret;
}
BDRVVmdkState *s = bs->opaque;
uint32_t magic;
- buf = vmdk_read_desc(bs->file, 0, errp);
+ buf = vmdk_read_desc(bs->file->bs, 0, errp);
if (!buf) {
return -EINVAL;
}
switch (magic) {
case VMDK3_MAGIC:
case VMDK4_MAGIC:
- ret = vmdk_open_sparse(bs, bs->file, flags, buf, options, errp);
+ ret = vmdk_open_sparse(bs, bs->file, flags, buf, options,
+ errp);
s->desc_offset = 0x200;
break;
default:
cluster_bytes = extent->cluster_sectors << BDRV_SECTOR_BITS;
whole_grain = qemu_blockalign(bs, cluster_bytes);
- if (!bs->backing_hd) {
+ if (!bs->backing) {
memset(whole_grain, 0, skip_start_sector << BDRV_SECTOR_BITS);
memset(whole_grain + (skip_end_sector << BDRV_SECTOR_BITS), 0,
cluster_bytes - (skip_end_sector << BDRV_SECTOR_BITS));
assert(skip_end_sector <= extent->cluster_sectors);
/* 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 && !vmdk_is_cid_valid(bs)) {
+ if (bs->backing && !vmdk_is_cid_valid(bs)) {
ret = VMDK_ERROR;
goto exit;
}
/* Read backing data before skip range */
if (skip_start_sector > 0) {
- if (bs->backing_hd) {
- ret = bdrv_read(bs->backing_hd, sector_num,
+ if (bs->backing) {
+ ret = bdrv_read(bs->backing->bs, sector_num,
whole_grain, skip_start_sector);
if (ret < 0) {
ret = VMDK_ERROR;
goto exit;
}
}
- ret = bdrv_write(extent->file, cluster_sector_num, whole_grain,
+ ret = bdrv_write(extent->file->bs, cluster_sector_num, whole_grain,
skip_start_sector);
if (ret < 0) {
ret = VMDK_ERROR;
}
/* Read backing data after skip range */
if (skip_end_sector < extent->cluster_sectors) {
- if (bs->backing_hd) {
- ret = bdrv_read(bs->backing_hd, sector_num + skip_end_sector,
+ if (bs->backing) {
+ ret = bdrv_read(bs->backing->bs, sector_num + skip_end_sector,
whole_grain + (skip_end_sector << BDRV_SECTOR_BITS),
extent->cluster_sectors - skip_end_sector);
if (ret < 0) {
goto exit;
}
}
- ret = bdrv_write(extent->file, cluster_sector_num + skip_end_sector,
+ ret = bdrv_write(extent->file->bs, cluster_sector_num + skip_end_sector,
whole_grain + (skip_end_sector << BDRV_SECTOR_BITS),
extent->cluster_sectors - skip_end_sector);
if (ret < 0) {
offset = cpu_to_le32(offset);
/* update L2 table */
if (bdrv_pwrite_sync(
- extent->file,
+ extent->file->bs,
((int64_t)m_data->l2_offset * 512)
+ (m_data->l2_index * sizeof(offset)),
&offset, sizeof(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,
+ extent->file->bs,
((int64_t)m_data->l2_offset * 512)
+ (m_data->l2_index * sizeof(offset)),
&offset, sizeof(offset)) < 0) {
}
l2_table = extent->l2_cache + (min_index * extent->l2_size);
if (bdrv_pread(
- extent->file,
+ extent->file->bs,
(int64_t)l2_offset * 512,
l2_table,
extent->l2_size * sizeof(uint32_t)
}
static int64_t coroutine_fn vmdk_co_get_block_status(BlockDriverState *bs,
- int64_t sector_num, int nb_sectors, int *pnum)
+ int64_t sector_num, int nb_sectors, int *pnum, BlockDriverState **file)
{
BDRVVmdkState *s = bs->opaque;
int64_t index_in_cluster, n, ret;
0, 0);
qemu_co_mutex_unlock(&s->lock);
+ index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num);
switch (ret) {
case VMDK_ERROR:
ret = -EIO;
break;
case VMDK_OK:
ret = BDRV_BLOCK_DATA;
- if (extent->file == bs->file && !extent->compressed) {
- ret |= BDRV_BLOCK_OFFSET_VALID | offset;
+ if (!extent->compressed) {
+ ret |= BDRV_BLOCK_OFFSET_VALID;
+ ret |= (offset + (index_in_cluster << BDRV_SECTOR_BITS))
+ & BDRV_BLOCK_OFFSET_MASK;
}
-
+ *file = extent->file->bs;
break;
}
- index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num);
n = extent->cluster_sectors - index_in_cluster;
if (n > nb_sectors) {
n = nb_sectors;
write_len = buf_len + sizeof(VmdkGrainMarker);
}
write_offset = cluster_offset + offset_in_cluster,
- ret = bdrv_pwrite(extent->file, write_offset, write_buf, write_len);
+ ret = bdrv_pwrite(extent->file->bs, write_offset, write_buf, write_len);
write_end_sector = DIV_ROUND_UP(write_offset + write_len, BDRV_SECTOR_SIZE);
- extent->next_cluster_sector = MAX(extent->next_cluster_sector,
- write_end_sector);
+ if (extent->compressed) {
+ extent->next_cluster_sector = write_end_sector;
+ } else {
+ extent->next_cluster_sector = MAX(extent->next_cluster_sector,
+ write_end_sector);
+ }
if (ret != write_len) {
ret = ret < 0 ? ret : -EIO;
if (!extent->compressed) {
- ret = bdrv_pread(extent->file,
+ ret = bdrv_pread(extent->file->bs,
cluster_offset + offset_in_cluster,
buf, nb_sectors * 512);
if (ret == nb_sectors * 512) {
buf_bytes = cluster_bytes * 2;
cluster_buf = g_malloc(buf_bytes);
uncomp_buf = g_malloc(cluster_bytes);
- ret = bdrv_pread(extent->file,
+ ret = bdrv_pread(extent->file->bs,
cluster_offset,
cluster_buf, buf_bytes);
if (ret < 0) {
}
if (ret != VMDK_OK) {
/* if not allocated, try to read from parent image, if exist */
- if (bs->backing_hd && ret != VMDK_ZEROED) {
+ if (bs->backing && ret != VMDK_ZEROED) {
if (!vmdk_is_cid_valid(bs)) {
return -EINVAL;
}
- ret = bdrv_read(bs->backing_hd, sector_num, buf, n);
+ ret = bdrv_read(bs->backing->bs, sector_num, buf, n);
if (ret < 0) {
return ret;
}
if (sector_num > bs->total_sectors) {
error_report("Wrong offset: sector_num=0x%" PRIx64
- " total_sectors=0x%" PRIx64 "\n",
- sector_num, bs->total_sectors);
+ " total_sectors=0x%" PRIx64,
+ sector_num, bs->total_sectors);
return -EIO;
}
QemuOpts *opts, Error **errp)
{
int ret, i;
- BlockDriverState *bs = NULL;
+ BlockBackend *blk = NULL;
VMDK4Header header;
Error *local_err = NULL;
uint32_t tmp, magic, grains, gd_sectors, gt_size, gt_count;
goto exit;
}
- assert(bs == NULL);
- ret = bdrv_open(&bs, filename, NULL, NULL, BDRV_O_RDWR | BDRV_O_PROTOCOL,
- NULL, &local_err);
- if (ret < 0) {
+ blk = blk_new_open(filename, NULL, NULL,
+ BDRV_O_RDWR | BDRV_O_PROTOCOL, &local_err);
+ if (blk == NULL) {
error_propagate(errp, local_err);
+ ret = -EIO;
goto exit;
}
+ blk_set_allow_write_beyond_eof(blk, true);
+
if (flat) {
- ret = bdrv_truncate(bs, filesize);
+ ret = blk_truncate(blk, filesize);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not truncate file");
}
}
magic = cpu_to_be32(VMDK4_MAGIC);
memset(&header, 0, sizeof(header));
- header.version = zeroed_grain ? 2 : 1;
+ if (compress) {
+ header.version = 3;
+ } else if (zeroed_grain) {
+ header.version = 2;
+ } else {
+ header.version = 1;
+ }
header.flags = VMDK4_FLAG_RGD | VMDK4_FLAG_NL_DETECT
| (compress ? VMDK4_FLAG_COMPRESS | VMDK4_FLAG_MARKER : 0)
| (zeroed_grain ? VMDK4_FLAG_ZERO_GRAIN : 0);
header.check_bytes[3] = 0xa;
/* write all the data */
- ret = bdrv_pwrite(bs, 0, &magic, sizeof(magic));
+ ret = blk_pwrite(blk, 0, &magic, sizeof(magic));
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
goto exit;
}
- ret = bdrv_pwrite(bs, sizeof(magic), &header, sizeof(header));
+ ret = blk_pwrite(blk, sizeof(magic), &header, sizeof(header));
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
goto exit;
}
- ret = bdrv_truncate(bs, le64_to_cpu(header.grain_offset) << 9);
+ ret = blk_truncate(blk, le64_to_cpu(header.grain_offset) << 9);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not truncate file");
goto exit;
i < gt_count; i++, tmp += gt_size) {
gd_buf[i] = cpu_to_le32(tmp);
}
- ret = bdrv_pwrite(bs, le64_to_cpu(header.rgd_offset) * BDRV_SECTOR_SIZE,
- gd_buf, gd_buf_size);
+ ret = blk_pwrite(blk, le64_to_cpu(header.rgd_offset) * BDRV_SECTOR_SIZE,
+ gd_buf, gd_buf_size);
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
goto exit;
i < gt_count; i++, tmp += gt_size) {
gd_buf[i] = cpu_to_le32(tmp);
}
- ret = bdrv_pwrite(bs, le64_to_cpu(header.gd_offset) * BDRV_SECTOR_SIZE,
- gd_buf, gd_buf_size);
+ ret = blk_pwrite(blk, le64_to_cpu(header.gd_offset) * BDRV_SECTOR_SIZE,
+ gd_buf, gd_buf_size);
if (ret < 0) {
error_setg(errp, QERR_IO_ERROR);
goto exit;
ret = 0;
exit:
- if (bs) {
- bdrv_unref(bs);
+ if (blk) {
+ blk_unref(blk);
}
g_free(gd_buf);
return ret;
static int vmdk_create(const char *filename, QemuOpts *opts, Error **errp)
{
int idx = 0;
- BlockDriverState *new_bs = NULL;
+ BlockBackend *new_blk = NULL;
Error *local_err = NULL;
char *desc = NULL;
int64_t total_size = 0, filesize;
goto exit;
}
if (backing_file) {
- BlockDriverState *bs = NULL;
+ BlockBackend *blk;
char *full_backing = g_new0(char, PATH_MAX);
bdrv_get_full_backing_filename_from_filename(filename, backing_file,
full_backing, PATH_MAX,
ret = -ENOENT;
goto exit;
}
- ret = bdrv_open(&bs, full_backing, NULL, NULL, BDRV_O_NO_BACKING, NULL,
- errp);
+
+ blk = blk_new_open(full_backing, NULL, NULL,
+ BDRV_O_NO_BACKING, errp);
g_free(full_backing);
- if (ret != 0) {
+ if (blk == NULL) {
+ ret = -EIO;
goto exit;
}
- if (strcmp(bs->drv->format_name, "vmdk")) {
- bdrv_unref(bs);
+ if (strcmp(blk_bs(blk)->drv->format_name, "vmdk")) {
+ blk_unref(blk);
ret = -EINVAL;
goto exit;
}
- parent_cid = vmdk_read_cid(bs, 0);
- bdrv_unref(bs);
+ parent_cid = vmdk_read_cid(blk_bs(blk), 0);
+ blk_unref(blk);
snprintf(parent_desc_line, BUF_SIZE,
"parentFileNameHint=\"%s\"", backing_file);
}
goto exit;
}
}
- assert(new_bs == NULL);
- ret = bdrv_open(&new_bs, filename, NULL, NULL,
- BDRV_O_RDWR | BDRV_O_PROTOCOL, NULL, &local_err);
- if (ret < 0) {
+
+ new_blk = blk_new_open(filename, NULL, NULL,
+ BDRV_O_RDWR | BDRV_O_PROTOCOL, &local_err);
+ if (new_blk == NULL) {
error_propagate(errp, local_err);
+ ret = -EIO;
goto exit;
}
- ret = bdrv_pwrite(new_bs, desc_offset, desc, desc_len);
+
+ blk_set_allow_write_beyond_eof(new_blk, true);
+
+ ret = blk_pwrite(new_blk, desc_offset, desc, desc_len);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not write description");
goto exit;
/* bdrv_pwrite write padding zeros to align to sector, we don't need that
* for description file */
if (desc_offset == 0) {
- ret = bdrv_truncate(new_bs, desc_len);
+ ret = blk_truncate(new_blk, desc_len);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not truncate file");
}
}
exit:
- if (new_bs) {
- bdrv_unref(new_bs);
+ if (new_blk) {
+ blk_unref(new_blk);
}
g_free(adapter_type);
g_free(backing_file);
int ret = 0;
for (i = 0; i < s->num_extents; i++) {
- err = bdrv_co_flush(s->extents[i].file);
+ err = bdrv_co_flush(s->extents[i].file->bs);
if (err < 0) {
ret = err;
}
int64_t r;
BDRVVmdkState *s = bs->opaque;
- ret = bdrv_get_allocated_file_size(bs->file);
+ ret = bdrv_get_allocated_file_size(bs->file->bs);
if (ret < 0) {
return ret;
}
if (s->extents[i].file == bs->file) {
continue;
}
- r = bdrv_get_allocated_file_size(s->extents[i].file);
+ r = bdrv_get_allocated_file_size(s->extents[i].file->bs);
if (r < 0) {
return r;
}
* return 0. */
for (i = 0; i < s->num_extents; i++) {
if (s->extents[i].flat) {
- if (!bdrv_has_zero_init(s->extents[i].file)) {
+ if (!bdrv_has_zero_init(s->extents[i].file->bs)) {
return 0;
}
}
ImageInfo *info = g_new0(ImageInfo, 1);
*info = (ImageInfo){
- .filename = g_strdup(extent->file->filename),
+ .filename = g_strdup(extent->file->bs->filename),
.format = g_strdup(extent->type),
.virtual_size = extent->sectors * BDRV_SECTOR_SIZE,
.compressed = extent->compressed,
PRId64 "\n", sector_num);
break;
}
- if (ret == VMDK_OK && cluster_offset >= bdrv_getlength(extent->file)) {
+ if (ret == VMDK_OK &&
+ cluster_offset >= bdrv_getlength(extent->file->bs))
+ {
fprintf(stderr,
"ERROR: cluster offset for sector %"
PRId64 " points after EOF\n", sector_num);
ImageInfoList **next;
*spec_info = (ImageInfoSpecific){
- .kind = IMAGE_INFO_SPECIFIC_KIND_VMDK,
- {
- .vmdk = g_new0(ImageInfoSpecificVmdk, 1),
+ .type = IMAGE_INFO_SPECIFIC_KIND_VMDK,
+ .u = {
+ .vmdk.data = g_new0(ImageInfoSpecificVmdk, 1),
},
};
- *spec_info->vmdk = (ImageInfoSpecificVmdk) {
+ *spec_info->u.vmdk.data = (ImageInfoSpecificVmdk) {
.create_type = g_strdup(s->create_type),
.cid = s->cid,
.parent_cid = s->parent_cid,
};
- next = &spec_info->vmdk->extents;
+ next = &spec_info->u.vmdk.data->extents;
for (i = 0; i < s->num_extents; i++) {
*next = g_new0(ImageInfoList, 1);
(*next)->value = vmdk_get_extent_info(&s->extents[i]);
int i;
for (i = 0; i < s->num_extents; i++) {
- bdrv_detach_aio_context(s->extents[i].file);
+ bdrv_detach_aio_context(s->extents[i].file->bs);
}
}
int i;
for (i = 0; i < s->num_extents; i++) {
- bdrv_attach_aio_context(s->extents[i].file, new_context);
+ bdrv_attach_aio_context(s->extents[i].file->bs, new_context);
}
}
Code Review / kvmfornfv.git / blobdiff