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[systemd] Fix timestamps in udev. Contributes to JB#45952
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These may cause problems when unlocking and mounting encrypted /home.
The patch is in upstream version 234.

Signed-off-by: Tomi Leppänen <tomi.leppanen@jolla.com>
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Tomin1 committed May 27, 2019
1 parent eabe60c commit a71affc
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@@ -0,0 +1,110 @@
From 1f7927f916609fa99f472a6fe2e1e4df7c37d965 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 27 Jun 2017 02:17:39 +0200
Subject: [PATCH] udev: fix some incorrect usages of CLOCK_BOOTTIME (#6198)

CLOCK_BOOTTIME should only be used if we actually want the clock to
count on while we are suspended, and it is hence not useful for normal
code execution time limits, fix that.

Moreover, a couple of uses were even more broken, as
clock_bottime_or_monotonic() was called where actually
now(clock_boottime_or_monotic()) was supposed to be called. Ouch!

Fixes: #5903
---
src/udev/udev-event.c | 10 +++++-----
src/udev/udevd.c | 12 ++++++------
2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index 476122278..894bbbad2 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -56,7 +56,7 @@ struct udev_event *udev_event_new(struct udev_device *dev) {
event->udev = udev;
udev_list_init(udev, &event->run_list, false);
udev_list_init(udev, &event->seclabel_list, false);
- event->birth_usec = clock_boottime_or_monotonic();
+ event->birth_usec = now(CLOCK_MONOTONIC);
return event;
}

@@ -496,7 +496,7 @@ static void spawn_read(struct udev_event *event,
if (timeout_usec > 0) {
usec_t age_usec;

- age_usec = clock_boottime_or_monotonic() - event->birth_usec;
+ age_usec = now(CLOCK_MONOTONIC) - event->birth_usec;
if (age_usec >= timeout_usec) {
log_error("timeout '%s'", cmd);
return;
@@ -647,13 +647,13 @@ static int spawn_wait(struct udev_event *event,
if (timeout_usec > 0) {
usec_t usec, age_usec;

- usec = now(clock_boottime_or_monotonic());
+ usec = now(CLOCK_MONOTONIC);
age_usec = usec - event->birth_usec;
if (age_usec < timeout_usec) {
if (timeout_warn_usec > 0 && timeout_warn_usec < timeout_usec && age_usec < timeout_warn_usec) {
spawn.timeout_warn = timeout_warn_usec - age_usec;

- r = sd_event_add_time(e, NULL, clock_boottime_or_monotonic(),
+ r = sd_event_add_time(e, NULL, CLOCK_MONOTONIC,
usec + spawn.timeout_warn, USEC_PER_SEC,
on_spawn_timeout_warning, &spawn);
if (r < 0)
@@ -662,7 +662,7 @@ static int spawn_wait(struct udev_event *event,

spawn.timeout = timeout_usec - age_usec;

- r = sd_event_add_time(e, NULL, clock_boottime_or_monotonic(),
+ r = sd_event_add_time(e, NULL, CLOCK_MONOTONIC,
usec + spawn.timeout, USEC_PER_SEC, on_spawn_timeout, &spawn);
if (r < 0)
return r;
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 28ac44fb8..7ff7d4b88 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -275,12 +275,12 @@ static void worker_attach_event(struct worker *worker, struct event *event) {

e = worker->manager->event;

- assert_se(sd_event_now(e, clock_boottime_or_monotonic(), &usec) >= 0);
+ assert_se(sd_event_now(e, CLOCK_MONOTONIC, &usec) >= 0);

- (void) sd_event_add_time(e, &event->timeout_warning, clock_boottime_or_monotonic(),
+ (void) sd_event_add_time(e, &event->timeout_warning, CLOCK_MONOTONIC,
usec + arg_event_timeout_warn_usec, USEC_PER_SEC, on_event_timeout_warning, event);

- (void) sd_event_add_time(e, &event->timeout, clock_boottime_or_monotonic(),
+ (void) sd_event_add_time(e, &event->timeout, CLOCK_MONOTONIC,
usec + arg_event_timeout_usec, USEC_PER_SEC, on_event_timeout, event);
}

@@ -746,9 +746,9 @@ static void manager_exit(Manager *manager) {
event_queue_cleanup(manager, EVENT_QUEUED);
manager_kill_workers(manager);

- assert_se(sd_event_now(manager->event, clock_boottime_or_monotonic(), &usec) >= 0);
+ assert_se(sd_event_now(manager->event, CLOCK_MONOTONIC, &usec) >= 0);

- r = sd_event_add_time(manager->event, NULL, clock_boottime_or_monotonic(),
+ r = sd_event_add_time(manager->event, NULL, CLOCK_MONOTONIC,
usec + 30 * USEC_PER_SEC, USEC_PER_SEC, on_exit_timeout, manager);
if (r < 0)
return;
@@ -782,7 +782,7 @@ static void event_queue_start(Manager *manager) {
manager->exit || manager->stop_exec_queue)
return;

- assert_se(sd_event_now(manager->event, clock_boottime_or_monotonic(), &usec) >= 0);
+ assert_se(sd_event_now(manager->event, CLOCK_MONOTONIC, &usec) >= 0);
/* check for changed config, every 3 seconds at most */
if (manager->last_usec == 0 ||
(usec - manager->last_usec) > 3 * USEC_PER_SEC) {
--
2.21.0

3 changes: 3 additions & 0 deletions rpm/systemd.spec
Expand Up @@ -44,6 +44,7 @@ Patch30: systemd-backport-fix-deserialization-of-dev_t.patch
Patch31: systemd-backport-rework-serialization.patch
Patch32: systemd-239-dhcp6-client-CVE-2018-15688-fix.patch
Patch33: systemd-235-Remove-extra-BindsTo.patch
Patch34: systemd-234-udev-fix-some-incorrect-usages-of-CLOCK_BOOTTIME-619.patch

Patch99: systemd-225_fix_build_with_glibc228.patch

Expand Down Expand Up @@ -216,7 +217,9 @@ This package includes tests for systemd.
%patch31 -p1
# DHCP6 client CVE-2018-15688 fix
%patch32 -p1
# home encryption related patches
%patch33 -p1
%patch34 -p1
#systemd-225_fix_build_with_glibc228.patch
%patch99 -p1

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