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authorloli10K <[email protected]>2019-02-09 00:44:15 +0100
committerMatthew Ahrens <[email protected]>2019-02-08 15:44:15 -0800
commitd8d418ff0cc90776182534bce10b01e9487b63e4 (patch)
treeb7db149cf6bfc701f7b3637359c192b2575c83c8 /lib/libzfs/libzfs_dataset.c
parent4417096956f7439322c65d9e70a4526df45ea8d0 (diff)
ZVOLs should not be allowed to have children
zfs create, receive and rename can bypass this hierarchy rule. Update both userland and kernel module to prevent this issue and use pyzfs unit tests to exercise the ioctls directly. Note: this commit slightly changes zfs_ioc_create() ABI. This allow to differentiate a generic error (EINVAL) from the specific case where we tried to create a dataset below a ZVOL (ZFS_ERR_WRONG_PARENT). Reviewed-by: Paul Dagnelie <[email protected]> Reviewed-by: Matt Ahrens <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Tom Caputi <[email protected]> Signed-off-by: loli10K <[email protected]>
Diffstat (limited to 'lib/libzfs/libzfs_dataset.c')
-rw-r--r--lib/libzfs/libzfs_dataset.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/lib/libzfs/libzfs_dataset.c b/lib/libzfs/libzfs_dataset.c
index 6445c9d7a..be86e5692 100644
--- a/lib/libzfs/libzfs_dataset.c
+++ b/lib/libzfs/libzfs_dataset.c
@@ -3809,11 +3809,6 @@ zfs_create(libzfs_handle_t *hdl, const char *path, zfs_type_t type,
"no such parent '%s'"), parent);
return (zfs_error(hdl, EZFS_NOENT, errbuf));
- case EINVAL:
- zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
- "parent '%s' is not a filesystem"), parent);
- return (zfs_error(hdl, EZFS_BADTYPE, errbuf));
-
case ENOTSUP:
zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
"pool must be upgraded to set this "