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OpenZFS 3254 - add support in zfs for aclmode=restricted

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Authored-by: Paul B. Henson <henson@acm.org>
Reviewed by: Albert Lee <trisk@nexenta.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Approved by: Richard Lowe <richlowe@richlowe.net>
Ported-by: Paul B. Henson <henson@acm.org>

OpenZFS-issue: https://www.illumos.org/issues/3254
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/71dbfc287c
Closes #10266
This commit is contained in:
Paul B. Henson 2019-12-05 00:45:14 +00:00 committed by Brian Behlendorf
parent a1af567bb6
commit 7bf3e1fa0f
3 changed files with 9 additions and 8 deletions
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2
man/man8/zfsprops.8
View File

@ -601,7 +601,7 @@ The
property does not apply to POSIX ACLs. property does not apply to POSIX ACLs.
.It Xo .It Xo
.Sy aclmode Ns = Ns Sy discard Ns | Ns Sy groupmask Ns | Ns .Sy aclmode Ns = Ns Sy discard Ns | Ns Sy groupmask Ns | Ns
.Sy passthrough Ns .Sy passthrough Ns | Ns Sy restricted Ns
.Xc .Xc
Controls how an ACL is modified during chmod(2) and how inherited ACEs Controls how an ACL is modified during chmod(2) and how inherited ACEs
are modified by the file creation mode. are modified by the file creation mode.

6
module/os/linux/zfs/zfs_vnops.c
View File

@ -3077,6 +3077,12 @@ top:
uint64_t acl_obj; uint64_t acl_obj;
new_mode = (pmode & S_IFMT) | (vap->va_mode & ~S_IFMT); new_mode = (pmode & S_IFMT) | (vap->va_mode & ~S_IFMT);
if (ZTOZSB(zp)->z_acl_mode == ZFS_ACL_RESTRICTED &&
!(zp->z_pflags & ZFS_ACL_TRIVIAL)) {
err = EPERM;
goto out;
}
if ((err = zfs_acl_chmod_setattr(zp, &aclp, new_mode))) if ((err = zfs_acl_chmod_setattr(zp, &aclp, new_mode)))
goto out; goto out;

9
module/zcommon/zfs_prop.c
View File

@ -176,13 +176,6 @@ zfs_prop_init(void)
{ NULL } { NULL }
}; };
static zprop_index_t acl_mode_table[] = {
{ "discard", ZFS_ACL_DISCARD },
{ "groupmask", ZFS_ACL_GROUPMASK },
{ "passthrough", ZFS_ACL_PASSTHROUGH },
{ NULL }
};
static zprop_index_t acl_inherit_table[] = { static zprop_index_t acl_inherit_table[] = {
{ "discard", ZFS_ACL_DISCARD }, { "discard", ZFS_ACL_DISCARD },
{ "noallow", ZFS_ACL_NOALLOW }, { "noallow", ZFS_ACL_NOALLOW },
@ -349,9 +342,11 @@ zfs_prop_init(void)
PROP_INHERIT, ZFS_TYPE_FILESYSTEM, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"discard | groupmask | passthrough | restricted", "ACLMODE", "discard | groupmask | passthrough | restricted", "ACLMODE",
acl_mode_table); acl_mode_table);
#ifndef __FreeBSD__
zprop_register_index(ZFS_PROP_ACLTYPE, "acltype", ZFS_ACLTYPE_OFF, zprop_register_index(ZFS_PROP_ACLTYPE, "acltype", ZFS_ACLTYPE_OFF,
PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
"noacl | posixacl", "ACLTYPE", acltype_table); "noacl | posixacl", "ACLTYPE", acltype_table);
#endif
zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit", zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit",
ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
"discard | noallow | restricted | passthrough | passthrough-x", "discard | noallow | restricted | passthrough | passthrough-x",