[PATCH v2 1/8] Add definitions for the POSIX draft ACL attributes

[rick.macklem@gmail.com]

From: Rick Macklem <rmacklem@uoguelph.ca>

The Internet draft "POSIX Draft ACL support for
Network File System Version 4, Minor Version2"
https://datatracker.ietf.org/doc/draft-ietf-nfsv4-posix-acls/
describes an extension to NFSv4.2 so that POSIX
draft ACLs can get acquired and set directly,
without using the loosey NFSv4->POSIX draft mapping
algorith.  It extends the protocol with four new
attributes.

This patch adds definitions of these four attributes
to the nfs4.h file.

Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202601031506.MX594pma-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202601031639.zIQYLs4h-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202601031746.QiLqxADW-lkp@intel.com/
Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
---
 include/linux/nfs4.h | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index e947af6a3684..9d70a5e6a8d0 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -516,6 +516,39 @@ enum {
 	FATTR4_XATTR_SUPPORT		= 82,
 };
 
+/*
+ * Symbol names and values are from draft-rmacklem-nfsv4-posix-acls
+ * "POSIX Draft ACL support for Network File System Version 4, Minor version 2"
+ * Section 10.
+ */
+enum {
+	ACL_MODEL_NFS4			= 1,
+	ACL_MODEL_POSIX_DRAFT		= 2,
+	ACL_MODEL_NONE			= 3,
+};
+
+enum {
+	ACL_SCOPE_FILE_OBJECT		= 1,
+	ACL_SCOPE_FILE_SYSTEM		= 2,
+	ACL_SCOPE_SERVER		= 3,
+};
+
+enum {
+	POSIXACE4_TAG_USER_OBJ		= 1,
+	POSIXACE4_TAG_USER		= 2,
+	POSIXACE4_TAG_GROUP_OBJ		= 3,
+	POSIXACE4_TAG_GROUP		= 4,
+	POSIXACE4_TAG_MASK		= 5,
+	POSIXACE4_TAG_OTHER		= 6,
+};
+
+enum {
+	FATTR4_ACL_TRUEFORM		= 89,
+	FATTR4_ACL_TRUEFORM_SCOPE	= 90,
+	FATTR4_POSIX_DEFAULT_ACL	= 91,
+	FATTR4_POSIX_ACCESS_ACL		= 92,
+};
+
 /*
  * The following internal definitions enable processing the above
  * attribute bits within 32-bit word boundaries.
@@ -598,6 +631,10 @@ enum {
 #define FATTR4_WORD2_TIME_DELEG_ACCESS	BIT(FATTR4_TIME_DELEG_ACCESS - 64)
 #define FATTR4_WORD2_TIME_DELEG_MODIFY	BIT(FATTR4_TIME_DELEG_MODIFY - 64)
 #define FATTR4_WORD2_OPEN_ARGUMENTS	BIT(FATTR4_OPEN_ARGUMENTS - 64)
+#define FATTR4_WORD2_ACL_TRUEFORM	BIT(FATTR4_ACL_TRUEFORM - 64)
+#define FATTR4_WORD2_ACL_TRUEFORM_SCOPE	BIT(FATTR4_ACL_TRUEFORM_SCOPE - 64)
+#define FATTR4_WORD2_POSIX_DEFAULT_ACL	BIT(FATTR4_POSIX_DEFAULT_ACL - 64)
+#define FATTR4_WORD2_POSIX_ACCESS_ACL	BIT(FATTR4_POSIX_ACCESS_ACL - 64)
 
 /* MDS threshold bitmap bits */
 #define THRESHOLD_RD                    (1UL << 0)
-- 
2.49.0