/*
* Block driver for the VMDK format
- *
+ *
* Copyright (c) 2004 Fabrice Bellard
* Copyright (c) 2005 Filip Navara
- *
+ *
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* THE SOFTWARE.
*/
-#include "vl.h"
+#include "qemu-common.h"
#include "block_int.h"
#define VMDK3_MAGIC (('C' << 24) | ('O' << 16) | ('W' << 8) | 'D')
#define CHECK_CID 1
-#define SECTOR_SIZE 512
+#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 HEADER_SIZE 512 // first sector of 512 bytes
static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
{
BDRVVmdkState *s = bs->opaque;
char desc[DESC_SIZE];
uint32_t cid;
- char *p_name, *cid_str;
+ char *p_name, *cid_str;
size_t cid_str_size;
/* the descriptor offset = 0x200 */
{
int snp_fd, p_fd;
uint32_t p_cid;
- char *p_name, *gd_buf, *rgd_buf;
+ char *p_name, *gd_buf, *rgd_buf;
const char *real_filename, *temp_str;
VMDK4Header header;
uint32_t gde_entries, gd_size;
gt_size = (int64_t)header.num_gtes_per_gte * header.granularity * SECTOR_SIZE;
if (!gt_size)
goto fail;
- gde_entries = (uint32_t)(capacity / gt_size); // number of gde/rgde
+ gde_entries = (uint32_t)(capacity / gt_size); // number of gde/rgde
gd_size = gde_entries * sizeof(uint32_t);
/* write RGD */
fail_gd:
qemu_free(gd_buf);
- fail_rgd:
+ fail_rgd:
qemu_free(rgd_buf);
fail:
close(p_fd);
static int vmdk_parent_open(BlockDriverState *bs, const char * filename)
{
BDRVVmdkState *s = bs->opaque;
- char *p_name;
+ char *p_name;
char desc[DESC_SIZE];
char parent_img_name[1024];
p_name += sizeof("parentFileNameHint") + 1;
if ((end_name = strchr(p_name,'\"')) == 0)
return -1;
-
+ if ((end_name - p_name) > sizeof (s->hd->backing_file) - 1)
+ return -1;
+
strncpy(s->hd->backing_file, p_name, end_name - p_name);
if (stat(s->hd->backing_file, &file_buf) != 0) {
path_combine(parent_img_name, sizeof(parent_img_name),
if (parent_open)
// Parent must be opened as RO.
flags = BDRV_O_RDONLY;
- fprintf(stderr, "(VMDK) image open: flags=0x%x filename=%s\n", flags, bs->filename);
ret = bdrv_file_open(&s->hd, filename, flags);
if (ret < 0)
s->l1_entry_sectors = s->l2_size * s->cluster_sectors;
if (s->l1_entry_sectors <= 0)
goto fail;
- s->l1_size = (bs->total_sectors + s->l1_entry_sectors - 1)
+ 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;
int min_index, i, j;
uint32_t min_count, *l2_table, tmp = 0;
uint64_t cluster_offset;
- int status;
if (m_data)
m_data->valid = 0;
}
}
l2_table = s->l2_cache + (min_index * s->l2_size);
- if (bdrv_pread(s->hd, (int64_t)l2_offset * 512, l2_table, s->l2_size * sizeof(uint32_t)) !=
+ if (bdrv_pread(s->hd, (int64_t)l2_offset * 512, l2_table, s->l2_size * sizeof(uint32_t)) !=
s->l2_size * sizeof(uint32_t))
return 0;
cluster_offset = le32_to_cpu(l2_table[l2_index]);
if (!cluster_offset) {
- struct stat file_buf;
-
if (!allocate)
return 0;
// Avoid the L2 tables update for the images that have snapshots.
if (!s->is_parent) {
- status = stat(s->hd->filename, &file_buf);
- if (status == -1) {
- fprintf(stderr, "(VMDK) Fail file stat: filename =%s size=0x%llx errno=%s\n",
- s->hd->filename, (uint64_t)file_buf.st_size, strerror(errno));
- return 0;
- }
- cluster_offset = file_buf.st_size;
+ cluster_offset = bdrv_getlength(s->hd);
bdrv_truncate(s->hd, cluster_offset + (s->cluster_sectors << 9));
cluster_offset >>= 9;
return cluster_offset;
}
-static int vmdk_is_allocated(BlockDriverState *bs, int64_t sector_num,
+static int vmdk_is_allocated(BlockDriverState *bs, int64_t sector_num,
int nb_sectors, int *pnum)
{
BDRVVmdkState *s = bs->opaque;
return (cluster_offset != 0);
}
-static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
+static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors)
{
BDRVVmdkState *s = bs->opaque;
return 0;
}
-static int vmdk_write(BlockDriverState *bs, int64_t sector_num,
+static int vmdk_write(BlockDriverState *bs, int64_t sector_num,
const uint8_t *buf, int nb_sectors)
{
BDRVVmdkState *s = bs->opaque;
if (sector_num > bs->total_sectors) {
fprintf(stderr,
- "(VMDK) Wrong offset: sector_num=0x%llx total_sectors=0x%llx\n",
+ "(VMDK) Wrong offset: sector_num=0x%" PRIx64
+ " total_sectors=0x%" PRIx64 "\n",
sector_num, bs->total_sectors);
return -1;
}
"# The Disk Data Base \n"
"#DDB\n"
"\n"
- "ddb.virtualHWVersion = \"4\"\n"
+ "ddb.virtualHWVersion = \"%d\"\n"
"ddb.geometry.cylinders = \"%lu\"\n"
"ddb.geometry.heads = \"16\"\n"
"ddb.geometry.sectors = \"63\"\n"
header.check_bytes[1] = 0x20;
header.check_bytes[2] = 0xd;
header.check_bytes[3] = 0xa;
-
- /* write all the data */
+
+ /* write all the data */
write(fd, &magic, sizeof(magic));
write(fd, &header, sizeof(header));
for (i = 0, tmp = header.rgd_offset + gd_size;
i < gt_count; i++, tmp += gt_size)
write(fd, &tmp, sizeof(tmp));
-
+
/* write backup grain directory */
lseek(fd, le64_to_cpu(header.gd_offset) << 9, SEEK_SET);
for (i = 0, tmp = header.gd_offset + gd_size;
if ((temp_str = strrchr(real_filename, ':')) != NULL)
real_filename = temp_str + 1;
sprintf(desc, desc_template, time(NULL), (unsigned long)total_size,
- real_filename, total_size / (63 * 16));
+ real_filename, (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4), total_size / (63 * 16));
/* write the descriptor */
lseek(fd, le64_to_cpu(header.desc_offset) << 9, SEEK_SET);
qemu_free(s->l1_table);
qemu_free(s->l2_cache);
- bdrv_delete(s->hd);
// try to close parent image, if exist
vmdk_parent_close(s->hd);
+ bdrv_delete(s->hd);
}
static void vmdk_flush(BlockDriverState *bs)
projects / qemu.git / blobdiff