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systemd/SOURCES/0436-udevadm-trigger-also-c...

57 lines
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From 4007f494b2e4c45f2d59948af3f4053258d3f127 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Fri, 28 Oct 2022 09:06:02 +0900
Subject: [PATCH] udevadm-trigger: also check with the original syspath if
device is renamed
For older kernels that synthetic UUID is not supported, we need to also
check the original device name, as udevd broadcasts uevent with new
sysname.
Fixes #25115.
(cherry picked from commit 1193448cb68e5a90cab027e16a093bbd367e9494)
Related: RHEL-5988
---
src/udev/udevadm-trigger.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
index 3909fa237c..40ee5085a0 100644
--- a/src/udev/udevadm-trigger.c
+++ b/src/udev/udevadm-trigger.c
@@ -176,6 +176,32 @@ static int device_monitor_handler(sd_device_monitor *m, sd_device *dev, void *us
_cleanup_free_ char *saved = NULL;
saved = set_remove(settle_path_or_ids, syspath);
+ if (!saved) {
+ const char *old_sysname;
+
+ /* When the device is renamed, the new name is broadcast, and the old name is saved
+ * in INTERFACE_OLD. */
+
+ if (sd_device_get_property_value(dev, "INTERFACE_OLD", &old_sysname) >= 0) {
+ _cleanup_free_ char *dir = NULL, *old_syspath = NULL;
+
+ r = path_extract_directory(syspath, &dir);
+ if (r < 0) {
+ log_device_debug_errno(dev, r,
+ "Failed to extract directory from '%s', ignoring: %m",
+ syspath);
+ return 0;
+ }
+
+ old_syspath = path_join(dir, old_sysname);
+ if (!old_syspath) {
+ log_oom_debug();
+ return 0;
+ }
+
+ saved = set_remove(settle_path_or_ids, old_syspath);
+ }
+ }
if (!saved) {
log_device_debug(dev, "Got uevent for unexpected device, ignoring.");
return 0;