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authorLennart Poettering <lennart@poettering.net>2014-04-28 18:11:40 +0200
committerLennart Poettering <lennart@poettering.net>2014-04-28 18:36:59 +0200
commit0b36bbc42d3a408531517a02acaf56105b863d55 (patch)
treeec62c51ca3c892fbcb2ba8df8013fb82c033d6b3
parent687ed1237b20a6db174fd0b372df20fa9a3a23c2 (diff)
machine-id: only look into KVM uuid when we are not running in a
container
-rw-r--r--src/core/machine-id-setup.c53
1 files changed, 27 insertions, 26 deletions
diff --git a/src/core/machine-id-setup.c b/src/core/machine-id-setup.c
index d459afe900..2a58e48d6f 100644
--- a/src/core/machine-id-setup.c
+++ b/src/core/machine-id-setup.c
@@ -93,32 +93,9 @@ static int generate(char id[34], const char *root) {
}
}
- /* If that didn't work, see if we are running in qemu/kvm and a
- * machine ID was passed in via -uuid on the qemu/kvm command
- * line */
-
- r = detect_vm(&vm_id);
- if (r > 0 && streq(vm_id, "kvm")) {
- char uuid[37];
-
- fd = open("/sys/class/dmi/id/product_uuid", O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
- if (fd >= 0) {
- k = loop_read(fd, uuid, 36, false);
- safe_close(fd);
-
- if (k >= 36) {
- r = shorten_uuid(id, uuid);
- if (r >= 0) {
- log_info("Initializing machine ID from KVM UUID.");
- return 0;
- }
- }
- }
- }
-
- /* If that didn't work either, see if we are running in a
- * container, and a machine ID was passed in via
- * $container_uuid the way libvirt/LXC does it */
+ /* If that didn't work, see if we are running in a container,
+ * and a machine ID was passed in via $container_uuid the way
+ * libvirt/LXC does it */
r = detect_container(NULL);
if (r > 0) {
_cleanup_free_ char *e = NULL;
@@ -133,6 +110,30 @@ static int generate(char id[34], const char *root) {
}
}
}
+
+ } else {
+ /* If we are not running in a container, see if we are
+ * running in qemu/kvm and a machine ID was passed in
+ * via -uuid on the qemu/kvm command line */
+
+ r = detect_vm(&vm_id);
+ if (r > 0 && streq(vm_id, "kvm")) {
+ char uuid[37];
+
+ fd = open("/sys/class/dmi/id/product_uuid", O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
+ if (fd >= 0) {
+ k = loop_read(fd, uuid, 36, false);
+ safe_close(fd);
+
+ if (k >= 36) {
+ r = shorten_uuid(id, uuid);
+ if (r >= 0) {
+ log_info("Initializing machine ID from KVM UUID.");
+ return 0;
+ }
+ }
+ }
+ }
}
/* If that didn't work, generate a random machine id */