int dm_simplecmd(int task, const char *name, int no_flush, uint16_t udev_flags)
{
int r = 0;
int udev_wait_flag = (task == DM_DEVICE_RESUME ||
task == DM_DEVICE_REMOVE);
#ifdef LIBDM_API_COOKIE
uint32_t cookie = 0;
#endif
struct dm_task *dmt;
if (!(dmt = dm_task_create(task)))
return 0;
if (!dm_task_set_name(dmt, name))
goto out;
dm_task_no_open_count(dmt);
dm_task_skip_lockfs(dmt);
if (no_flush)
dm_task_no_flush(dmt);
#ifdef LIBDM_API_COOKIE
if (!udev_sync)
udev_flags |= DM_UDEV_DISABLE_LIBRARY_FALLBACK;
if (udev_wait_flag && !dm_task_set_cookie(dmt, &cookie, udev_flags))
goto out;
#endif
r = dm_task_run(dmt);
#ifdef LIBDM_API_COOKIE
if (udev_wait_flag)
dm_udev_wait(cookie);
#endif
out:
dm_task_destroy(dmt);
return r;
}
static int
dm_simplecmd (int task, const char *name, int no_flush, int need_sync, uint16_t udev_flags, int deferred_remove) {
int r = 0;
int udev_wait_flag = (need_sync && (task == DM_DEVICE_RESUME ||
task == DM_DEVICE_REMOVE));
uint32_t cookie = 0;
struct dm_task *dmt;
if (!(dmt = dm_task_create (task)))
return 0;
if (!dm_task_set_name (dmt, name))
goto out;
dm_task_no_open_count(dmt);
dm_task_skip_lockfs(dmt); /* for DM_DEVICE_RESUME */
#ifdef LIBDM_API_FLUSH
if (no_flush)
dm_task_no_flush(dmt); /* for DM_DEVICE_SUSPEND/RESUME */
#endif
#ifdef LIBDM_API_DEFERRED
if (do_deferred(deferred_remove))
dm_task_deferred_remove(dmt);
#endif
if (udev_wait_flag &&
!dm_task_set_cookie(dmt, &cookie,
DM_UDEV_DISABLE_LIBRARY_FALLBACK | udev_flags))
goto out;
r = dm_task_run (dmt);
if (udev_wait_flag)
dm_udev_wait(cookie);
out:
dm_task_destroy (dmt);
return r;
}
static int
dm_addmap (int task, const char *target, struct multipath *mpp,
char * params, int ro) {
int r = 0;
struct dm_task *dmt;
char *prefixed_uuid = NULL;
uint32_t cookie = 0;
if (!(dmt = dm_task_create (task)))
return 0;
if (!dm_task_set_name (dmt, mpp->alias))
goto addout;
if (!dm_task_add_target (dmt, 0, mpp->size, target, params))
goto addout;
if (ro)
dm_task_set_ro(dmt);
if (task == DM_DEVICE_CREATE) {
if (strlen(mpp->wwid) > 0) {
prefixed_uuid = MALLOC(UUID_PREFIX_LEN +
strlen(mpp->wwid) + 1);
if (!prefixed_uuid) {
condlog(0, "cannot create prefixed uuid : %s",
strerror(errno));
goto addout;
}
sprintf(prefixed_uuid, UUID_PREFIX "%s", mpp->wwid);
if (!dm_task_set_uuid(dmt, prefixed_uuid))
goto freeout;
}
dm_task_skip_lockfs(dmt);
#ifdef LIBDM_API_FLUSH
dm_task_no_flush(dmt);
#endif
}
if (mpp->attribute_flags & (1 << ATTR_MODE) &&
!dm_task_set_mode(dmt, mpp->mode))
goto freeout;
if (mpp->attribute_flags & (1 << ATTR_UID) &&
!dm_task_set_uid(dmt, mpp->uid))
goto freeout;
if (mpp->attribute_flags & (1 << ATTR_GID) &&
!dm_task_set_gid(dmt, mpp->gid))
goto freeout;
condlog(4, "%s: %s [0 %llu %s %s]", mpp->alias,
task == DM_DEVICE_RELOAD ? "reload" : "addmap", mpp->size,
target, params);
dm_task_no_open_count(dmt);
if (task == DM_DEVICE_CREATE &&
!dm_task_set_cookie(dmt, &cookie,
DM_UDEV_DISABLE_LIBRARY_FALLBACK))
goto freeout;
r = dm_task_run (dmt);
if (task == DM_DEVICE_CREATE)
dm_udev_wait(cookie);
freeout:
if (prefixed_uuid)
FREE(prefixed_uuid);
addout:
dm_task_destroy (dmt);
return r;
}