diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/iscsi.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/block/iscsi.c b/block/iscsi.c index 041ee07de3..d8382fdd5d 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -957,6 +957,56 @@ static int iscsi_has_zero_init(BlockDriverState *bs) return 0; } +static int iscsi_create(const char *filename, QEMUOptionParameter *options) +{ + int ret = 0; + int64_t total_size = 0; + BlockDriverState bs; + IscsiLun *iscsilun = NULL; + + memset(&bs, 0, sizeof(BlockDriverState)); + + /* Read out options */ + while (options && options->name) { + if (!strcmp(options->name, "size")) { + total_size = options->value.n / BDRV_SECTOR_SIZE; + } + options++; + } + + bs.opaque = g_malloc0(sizeof(struct IscsiLun)); + iscsilun = bs.opaque; + + ret = iscsi_open(&bs, filename, 0); + if (ret != 0) { + goto out; + } + if (iscsilun->type != TYPE_DISK) { + ret = -ENODEV; + goto out; + } + if (bs.total_sectors < total_size) { + ret = -ENOSPC; + } + + ret = 0; +out: + if (iscsilun->iscsi != NULL) { + iscsi_destroy_context(iscsilun->iscsi); + } + g_free(bs.opaque); + return ret; +} + +static QEMUOptionParameter iscsi_create_options[] = { + { + .name = BLOCK_OPT_SIZE, + .type = OPT_SIZE, + .help = "Virtual disk size" + }, + { NULL } +}; + static BlockDriver bdrv_iscsi = { .format_name = "iscsi", .protocol_name = "iscsi", @@ -964,6 +1014,8 @@ static BlockDriver bdrv_iscsi = { .instance_size = sizeof(IscsiLun), .bdrv_file_open = iscsi_open, .bdrv_close = iscsi_close, + .bdrv_create = iscsi_create, + .create_options = iscsi_create_options, .bdrv_getlength = iscsi_getlength, |