From f38036e6d2d1ba72fe247fbd2f40ae784e38e583 Mon Sep 17 00:00:00 2001
From: "Andrew J. Hesford" <ajh@sideband.org>
Date: Tue, 10 Jan 2023 10:57:51 -0500
Subject: [PATCH] mkinitcpio-nfs-utils: support NFSv4 roots

---
 .../mkinitcpio-nfs-utils/files/initcpio-hook-net    | 13 ++++++++++++-
 .../mkinitcpio-nfs-utils/files/initcpio-install-net |  2 ++
 srcpkgs/mkinitcpio-nfs-utils/template               |  2 +-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-hook-net b/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-hook-net
index 4d1ebb95605e..33382d95b728 100644
--- a/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-hook-net
+++ b/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-hook-net
@@ -84,7 +84,18 @@ nfs_mount_handler() {
         launch_interactive_shell
         msg "Trying to continue (this will most likely fail) ..."
     fi
-    nfsmount ${nfs_option:+-o ${nfs_option}} "${nfs_server}:${nfs_path}" "$1"
+
+    # nfsmount avoids problems with lockd for v2 and v3 but does not support v4;
+    # to support v4 roots, examine mount options for a v4 version spec and use
+    # the ordinary mount program. v4 doesn't need lockd for file locking anyway.
+    mount_cmd=nfsmount
+    case "${nfs_option}" in
+        nfsvers=4*|*,nfsvers=4*|vers=4*|*,vers=4*)
+            command -v mount.nfs4 >/dev/null 2>&1 && mount_cmd="mount -t nfs4"
+            ;;
+    esac
+
+    ${mount_cmd} ${nfs_option:+-o ${nfs_option}} "${nfs_server}:${nfs_path}" "$1"
 }
 
 # vim: set ft=sh ts=4 sw=4 et:
diff --git a/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-install-net b/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-install-net
index 79b678949c95..153767add8c5 100644
--- a/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-install-net
+++ b/srcpkgs/mkinitcpio-nfs-utils/files/initcpio-install-net
@@ -3,9 +3,11 @@
 build() {
     add_checked_modules '/drivers/net/'
     add_module nfsv3?
+    add_module nfsv4?
 
     add_binary "/usr/lib/initcpio/ipconfig" "/bin/ipconfig"
     add_binary "/usr/lib/initcpio/nfsmount" "/bin/nfsmount"
+    command -v mount.nfs4 >/dev/null 2>&1 && add_binary "mount.nfs4"
 
     add_runscript
 }
diff --git a/srcpkgs/mkinitcpio-nfs-utils/template b/srcpkgs/mkinitcpio-nfs-utils/template
index 7f36e1cf7fdf..05664525ebfe 100644
--- a/srcpkgs/mkinitcpio-nfs-utils/template
+++ b/srcpkgs/mkinitcpio-nfs-utils/template
@@ -1,7 +1,7 @@
 # Template file for 'mkinitcpio-nfs-utils'
 pkgname=mkinitcpio-nfs-utils
 version=0.3
-revision=3
+revision=4
 build_style=gnu-makefile
 depends="mkinitcpio"
 short_desc="Ipconfig and nfsmount tools for NFS root support in mkinitcpio"