64 lines
2.2 KiB
Diff
64 lines
2.2 KiB
Diff
From bedb539662380d6a120db1e8dbb63b55d2ecac2c Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
|
|
Date: Wed, 11 Dec 2013 22:00:33 -0500
|
|
Subject: [PATCH] nspawn: complain and continue if machine has same id
|
|
|
|
If --link-journal=host or --link-journal=guest is used, this totally
|
|
cannot work and we exit with an error. If however --link-journal=auto
|
|
or --link-journal=no is used, just display a warning.
|
|
|
|
Having the same machine id can happen if booting from the same
|
|
filesystem as the host. Since other things mostly function correctly,
|
|
let's allow that.
|
|
|
|
https://bugs.freedesktop.org/show_bug.cgi?id=68369
|
|
---
|
|
src/nspawn/nspawn.c | 23 +++++++++++++++++++----
|
|
1 file changed, 19 insertions(+), 4 deletions(-)
|
|
|
|
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
|
|
index 7346253..618f9c3 100644
|
|
--- a/src/nspawn/nspawn.c
|
|
+++ b/src/nspawn/nspawn.c
|
|
@@ -811,14 +811,11 @@ static int setup_hostname(void) {
|
|
}
|
|
|
|
static int setup_journal(const char *directory) {
|
|
- sd_id128_t machine_id;
|
|
+ sd_id128_t machine_id, this_id;
|
|
_cleanup_free_ char *p = NULL, *b = NULL, *q = NULL, *d = NULL;
|
|
char *id;
|
|
int r;
|
|
|
|
- if (arg_link_journal == LINK_NO)
|
|
- return 0;
|
|
-
|
|
p = strappend(directory, "/etc/machine-id");
|
|
if (!p)
|
|
return log_oom();
|
|
@@ -842,6 +839,24 @@ static int setup_journal(const char *directory) {
|
|
return r;
|
|
}
|
|
|
|
+ r = sd_id128_get_machine(&this_id);
|
|
+ if (r < 0) {
|
|
+ log_error("Failed to retrieve machine ID: %s", strerror(-r));
|
|
+ return r;
|
|
+ }
|
|
+
|
|
+ if (sd_id128_equal(machine_id, this_id)) {
|
|
+ log_full(arg_link_journal == LINK_AUTO ? LOG_WARNING : LOG_ERR,
|
|
+ "Host and machine ids are equal (%s): refusing to link journals", id);
|
|
+ if (arg_link_journal == LINK_AUTO)
|
|
+ return 0;
|
|
+ return
|
|
+ -EEXIST;
|
|
+ }
|
|
+
|
|
+ if (arg_link_journal == LINK_NO)
|
|
+ return 0;
|
|
+
|
|
free(p);
|
|
p = strappend("/var/log/journal/", id);
|
|
q = strjoin(directory, "/var/log/journal/", id, NULL);
|