Signed-off-by: Dong Xu Wang <wdon...@linux.vnet.ibm.com>
---
block/ssh.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 69 insertions(+)
diff --git a/block/ssh.c b/block/ssh.c
index d7e7bf8..7f1d5d7 100644
--- a/block/ssh.c
+++ b/block/ssh.c
@@ -709,6 +709,73 @@ static int ssh_create(const char *filename,
QEMUOptionParameter *options)
return ret;
}
+static QemuOptsList ssh_create_opts = {
+ .name = "ssh-create-opts",
+ .head = QTAILQ_HEAD_INITIALIZER(ssh_create_opts.head),
+ .desc = {
+ {
+ .name = BLOCK_OPT_SIZE,
+ .type = QEMU_OPT_SIZE,
+ .help = "Virtual disk size"
+ },
+ { /* end of list */ }
+ }
+};
+
+static int ssh_create_new(const char *filename, QemuOpts *opts)
+{
+ int r, ret;
+ Error *local_err = NULL;
+ int64_t total_size = 0;
+ QDict *uri_options = NULL;
+ BDRVSSHState s;
+ ssize_t r2;
+ char c[1] = { '\0' };
+
+ ssh_state_init(&s);
+
+ /* Get desired file size. */
+ total_size = qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0);
+ DPRINTF("total_size=%" PRIi64, total_size);
+
+ uri_options = qdict_new();
+ r = parse_uri(filename, uri_options, &local_err);
+ if (r < 0) {
+ qerror_report_err(local_err);
+ error_free(local_err);
+ ret = r;
+ goto out;
+ }
+
+ r = connect_to_ssh(&s, uri_options,
+ LIBSSH2_FXF_READ|LIBSSH2_FXF_WRITE|
+ LIBSSH2_FXF_CREAT|LIBSSH2_FXF_TRUNC, 0644);
+ if (r < 0) {
+ ret = r;
+ goto out;
+ }
+
+ if (total_size > 0) {
+ libssh2_sftp_seek64(s.sftp_handle, total_size-1);
+ r2 = libssh2_sftp_write(s.sftp_handle, c, 1);
+ if (r2 < 0) {
+ sftp_error_report(&s, "truncate failed");
+ ret = -EINVAL;
+ goto out;
+ }
+ s.attrs.filesize = total_size;
+ }
+
+ ret = 0;
+
+ out:
+ ssh_state_free(&s);
+ if (uri_options != NULL) {
+ QDECREF(uri_options);
+ }
+ return ret;
+}
+
static void ssh_close(BlockDriverState *bs)
{
BDRVSSHState *s = bs->opaque;
@@ -1051,6 +1118,7 @@ static BlockDriver bdrv_ssh = {
.bdrv_parse_filename = ssh_parse_filename,
.bdrv_file_open = ssh_file_open,
.bdrv_create = ssh_create,
+ .bdrv_create_new = ssh_create_new,
.bdrv_close = ssh_close,
.bdrv_has_zero_init = ssh_has_zero_init,
.bdrv_co_readv = ssh_co_readv,
@@ -1058,6 +1126,7 @@ static BlockDriver bdrv_ssh = {
.bdrv_getlength = ssh_getlength,
.bdrv_co_flush_to_disk = ssh_co_flush,
.create_options = ssh_create_options,
+ .bdrv_create_opts = &ssh_create_opts,
};
static void bdrv_ssh_init(void)
--
1.7.11.7
