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Cross-platform acltype

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The acltype property is currently hidden on FreeBSD and does not
reflect the NFSv4 style ZFS ACLs used on the platform.  This makes it
difficult to observe that a pool imported from FreeBSD on Linux has a
different type of ACL that is being ignored, and vice versa.

Add an nfsv4 acltype and expose the property on FreeBSD.

Make the default acltype nfsv4 on FreeBSD.

Setting acltype to an unhanded style is treated the same as setting
it to off.  The ACLs will not be removed, but they will be ignored.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #10520
This commit is contained in:
Ryan Moeller
2020-10-14 00:25:48 -04:00
committed by Brian Behlendorf
parent fbfc7e843a
commit 725c9e22ca
13 changed files with 116 additions and 48 deletions
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module/os/freebsd/zfs/zfs_vnops.c
+17 -1
View File
@@ -4744,6 +4744,8 @@ static int
zfs_pathconf(vnode_t *vp, int cmd, ulong_t *valp, cred_t *cr,
caller_context_t *ct)
{
znode_t *zp;
zfsvfs_t *zfsvfs;
switch (cmd) {
case _PC_LINK_MAX:
@@ -4757,11 +4759,25 @@ zfs_pathconf(vnode_t *vp, int cmd, ulong_t *valp, cred_t *cr,
*valp = (int)SPA_MINBLOCKSIZE;
return (0);
case _PC_ACL_EXTENDED:
#if 0 /* POSIX ACLs are not implemented for ZFS on FreeBSD yet. */
zp = VTOZ(vp);
zfsvfs = zp->z_zfsvfs;
ZFS_ENTER(zfsvfs);
ZFS_VERIFY_ZP(zp);
*valp = zfsvfs->z_acl_type == ZFSACLTYPE_POSIX ? 1 : 0;
ZFS_EXIT(zfsvfs);
#else
*valp = 0;
#endif
return (0);
case _PC_ACL_NFS4:
*valp = 1;
zp = VTOZ(vp);
zfsvfs = zp->z_zfsvfs;
ZFS_ENTER(zfsvfs);
ZFS_VERIFY_ZP(zp);
*valp = zfsvfs->z_acl_type == ZFS_ACLTYPE_NFSV4 ? 1 : 0;
ZFS_EXIT(zfsvfs);
return (0);
case _PC_ACL_PATH_MAX: