static int ssh_file_open(BlockDriverState *bs, QDict *options, int bdrv_flags,
Error **errp)
{
BDRVSSHState *s = bs->opaque;
int ret;
int ssh_flags;
ssh_state_init(s);
ssh_flags = LIBSSH2_FXF_READ;
if (bdrv_flags & BDRV_O_RDWR) {
ssh_flags |= LIBSSH2_FXF_WRITE;
}
/* Start up SSH. */
ret = connect_to_ssh(s, options, ssh_flags, 0, errp);
if (ret < 0) {
goto err;
}
/* Go non-blocking. */
libssh2_session_set_blocking(s->session, 0);
return 0;
err:
if (s->sock >= 0) {
close(s->sock);
}
s->sock = -1;
return ret;
}
static int ssh_create(const char *filename, QEMUOptionParameter *options)
{
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. */
while (options && options->name) {
if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
total_size = options->value.n;
}
options++;
}
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 int ssh_create(const char *filename, QemuOpts *opts, Error **errp)
{
int r, ret;
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 = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
BDRV_SECTOR_SIZE);
DPRINTF("total_size=%" PRIi64, total_size);
uri_options = qdict_new();
r = parse_uri(filename, uri_options, errp);
if (r < 0) {
ret = r;
goto out;
}
r = connect_to_ssh(&s, uri_options,
LIBSSH2_FXF_READ|LIBSSH2_FXF_WRITE|
LIBSSH2_FXF_CREAT|LIBSSH2_FXF_TRUNC,
0644, errp);
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_setg(errp, &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;
}
