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systemd-tmpfiles: Fix IGNORE_DIRECTORY_PATH age handling

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If one has a config like:
d /tmp 1777 root root -
X /tmp/important_mount

All files below /tmp/important_mount will be deleted as the
/tmp/important_mount item will spuriously inherit a max age of 0
from /tmp.
/tmp has a max age of 0 but age_set is (of course) false.

This affects also the PrivateTmp feature of systemd.
All tmp files of such services will be deleted unconditionally
and can cause service failures and data loss.

Fix this by checking ->age_set in the IGNORE_DIRECTORY_PATH logic.
This commit is contained in:
Richard Weinberger 2014-09-09 11:09:37 +02:00 committed by Tom Gundersen
parent 37161c5148
commit 9ed2a35e93
1 changed files with 1 additions and 1 deletions
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src/tmpfiles/tmpfiles.c
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@ -1576,7 +1576,7 @@ static int read_config_file(const char *fn, bool ignore_enoent) {
candidate_item = j;
}
if (candidate_item) {
if (candidate_item && candidate_item->age_set) {
i->age = candidate_item->age;
i->age_set = true;
}