52 lines
2.3 KiB
Diff
52 lines
2.3 KiB
Diff
|
From 61c761bc2c35fb244d46fbbde97161f5927071dc Mon Sep 17 00:00:00 2001
|
||
|
|
From: Stefan Berger <stefanb@us.ibm.com>
|
||
|
|
Date: Tue, 25 Oct 2016 15:09:49 -0400
|
||
|
|
Subject: [PATCH] dracut-install: preserve extended attributes when copying
|
||
|
|
files
|
||
|
|
|
||
|
|
Preserve extended attributes when copying files using dracut-install.
|
||
|
|
|
||
|
|
The copying of extended attributes avoids file execution denials when
|
||
|
|
the Linux Integrity Measurement's Appraisal mode is active. In that mode
|
||
|
|
executables need their file signatures copied. In particular, this patch
|
||
|
|
solves the problem that dependent libaries are not included in the
|
||
|
|
initramfs since the copied programs could not be executed due to missing
|
||
|
|
signatures. The following audit record shows the type of failure that
|
||
|
|
is now prevented:
|
||
|
|
|
||
|
|
type=INTEGRITY_DATA msg=audit(1477409025.492:30065): pid=922 uid=0
|
||
|
|
auid=4294967295 ses=4294967295
|
||
|
|
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
|
||
|
|
op="appraise_data" cause="IMA-signature-required"
|
||
|
|
comm="ld-linux-x86-64"
|
||
|
|
name="/var/tmp/dracut.R6ySa4/initramfs/usr/bin/journalctl"
|
||
|
|
dev="dm-0" ino=37136 res=0
|
||
|
|
|
||
|
|
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
|
||
|
|
---
|
||
|
|
install/dracut-install.c | 4 ++--
|
||
|
|
1 file changed, 2 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/install/dracut-install.c b/install/dracut-install.c
|
||
|
|
index fe30bba..c0f1c17 100644
|
||
|
|
--- a/install/dracut-install.c
|
||
|
|
+++ b/install/dracut-install.c
|
||
|
|
@@ -294,7 +294,7 @@ static int cp(const char *src, const char *dst)
|
||
|
|
normal_copy:
|
||
|
|
pid = fork();
|
||
|
|
if (pid == 0) {
|
||
|
|
- execlp("cp", "cp", "--reflink=auto", "--sparse=auto", "--preserve=mode,timestamps", "-fL", src, dst,
|
||
|
|
+ execlp("cp", "cp", "--reflink=auto", "--sparse=auto", "--preserve=mode,timestamps,xattr", "-fL", src, dst,
|
||
|
|
NULL);
|
||
|
|
_exit(EXIT_FAILURE);
|
||
|
|
}
|
||
|
|
@@ -302,7 +302,7 @@ static int cp(const char *src, const char *dst)
|
||
|
|
while (waitpid(pid, &ret, 0) < 0) {
|
||
|
|
if (errno != EINTR) {
|
||
|
|
ret = -1;
|
||
|
|
- log_error("Failed: cp --reflink=auto --sparse=auto --preserve=mode,timestamps -fL %s %s", src,
|
||
|
|
+ log_error("Failed: cp --reflink=auto --sparse=auto --preserve=mode,timestamps,xattr -fL %s %s", src,
|
||
|
|
dst);
|
||
|
|
break;
|
||
|
|
}
|