guix/gnu/packages/patches/hurd-xattr.patch
Jan (janneke) Nieuwenhuizen 4c26229ccb
gnu: hurd: Update to upstream Hurd-reserved xattr index.
This enables setting (and reading) passive translators when preparing a Hurd
file system from GNU/Linux.

* gnu/packages/patches/hurd-xattr.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/hurd.scm (hurd): Use it.
2020-06-08 13:51:17 +02:00

53 lines
1.6 KiB
Diff

From 75cb948c575fca3962c4cce115d31dd178bc389f Mon Sep 17 00:00:00 2001
From: "Jan (janneke) Nieuwenhuizen" <janneke@gnu.org>
Date: Tue, 12 May 2020 07:39:59 +0200
Subject: [PATCH] ext2fs: Update to upstream Hurd-reserved xattr index for
"gnu.*".
See
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3980bd3b406addb327d858aebd19e229ea340b9a
This supports setting (and reading) of passive trasnlators from
GNU/Linux, e.g.
dd if=/dev/zero of=file bs=1k count=1000
losetup /dev/loop0 file
mke2fs -t ext2 -o hurd -O ext_attr /dev/loop0
mount -t ext2 -o x-xattr-translator-records /dev/loop0 /mnt
mkdir -p /mnt/servers/socket
touch /mnt/servers/socket/1
setfattr --name=gnu.translator --value='/hurd/pflocal\0' /mnt/servers/socket/1
getfattr --name=gnu.translator /mnt/servers/socket/1
# file: 1
gnu.translator="/hurd/pflocal"
* ext2fs/xattr.c (struct _xattr_prefix): For "gnu.*", use index for
the Hurd (10).
---
ext2fs/xattr.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/ext2fs/xattr.c b/ext2fs/xattr.c
index f6ea0f39..78458214 100644
--- a/ext2fs/xattr.c
+++ b/ext2fs/xattr.c
@@ -1,6 +1,6 @@
/* Ext2 support for extended attributes
- Copyright (C) 2006, 2016 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2016, 2020 Free Software Foundation, Inc.
Written by Thadeu Lima de Souza Cascardo <cascardo@dcc.ufmg.br>
and Shengyu Zhang <lastavengers@outlook.com>
@@ -39,7 +39,7 @@ xattr_prefixes[] =
{
1, "user.", sizeof "user." - 1},
{
- 7, "gnu.", sizeof "gnu." - 1},
+ 10, "gnu.", sizeof "gnu." - 1},
{
0, NULL, 0}
};
--
2.26.0