From f105c14266609e62c68b9e67e19044c555f11933 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Tue, 17 Oct 2023 18:54:56 +0100
Subject: [PATCH] adding MOVE_MOUNT* constants for linux to use with
 SYS_move_mount syscall.

close #3387
---
 libc-test/build.rs                   |  3 +++
 libc-test/semver/linux-gnu.txt       |  9 +++++++++
 src/unix/linux_like/linux/gnu/mod.rs | 13 ++++++++++++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index ffb972cb4145e..2f9d894b19318 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -3862,6 +3862,9 @@ fn test_linux(target: &str) {
             // FIXME: Requires more recent kernel headers
             "HWTSTAMP_TX_ONESTEP_P2P" if musl => true, // linux v5.6+
 
+            // kernel 6.5 minimum
+            "MOVE_MOUNT_BENEATH" => true,
+
             _ => false,
         }
     });
diff --git a/libc-test/semver/linux-gnu.txt b/libc-test/semver/linux-gnu.txt
index c37333b964046..04b07ec7f3983 100644
--- a/libc-test/semver/linux-gnu.txt
+++ b/libc-test/semver/linux-gnu.txt
@@ -140,6 +140,15 @@ MOD_OFFSET
 MOD_STATUS
 MOD_TAI
 MOD_TIMECONST
+MOVE_MOUNT__MASK
+MOVE_MOUNT_BENEATH
+MOVE_MOUNT_F_AUTOMOUNTS
+MOVE_MOUNT_F_EMPTY_PATH
+MOVE_MOUNT_F_SYMLINKS
+MOVE_MOUNT_SET_GROUP
+MOVE_MOUNT_T_AUTOMOUNTS
+MOVE_MOUNT_T_EMPTY_PATH
+MOVE_MOUNT_T_SYMLINKS
 MPOL_BIND
 MPOL_DEFAULT
 MPOL_F_NUMA_BALANCING
diff --git a/src/unix/linux_like/linux/gnu/mod.rs b/src/unix/linux_like/linux/gnu/mod.rs
index 175a49cd6696c..d81c835744276 100644
--- a/src/unix/linux_like/linux/gnu/mod.rs
+++ b/src/unix/linux_like/linux/gnu/mod.rs
@@ -1029,7 +1029,18 @@ pub const STATX_ATTR_DAX: ::c_int = 0x00200000;
 
 pub const SOMAXCONN: ::c_int = 4096;
 
-//sys/timex.h
+// linux/mount.h
+pub const MOVE_MOUNT_F_SYMLINKS: ::c_uint = 0x00000001;
+pub const MOVE_MOUNT_F_AUTOMOUNTS: ::c_uint = 0x00000002;
+pub const MOVE_MOUNT_F_EMPTY_PATH: ::c_uint = 0x00000004;
+pub const MOVE_MOUNT_T_SYMLINKS: ::c_uint = 0x00000010;
+pub const MOVE_MOUNT_T_AUTOMOUNTS: ::c_uint = 0x00000020;
+pub const MOVE_MOUNT_T_EMPTY_PATH: ::c_uint = 0x00000040;
+pub const MOVE_MOUNT_SET_GROUP: ::c_uint = 0x00000100;
+pub const MOVE_MOUNT_BENEATH: ::c_uint = 0x00000200;
+pub const MOVE_MOUNT__MASK: ::c_uint = 0x00000377;
+
+// sys/timex.h
 pub const ADJ_OFFSET: ::c_uint = 0x0001;
 pub const ADJ_FREQUENCY: ::c_uint = 0x0002;
 pub const ADJ_MAXERROR: ::c_uint = 0x0004;