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From 797dafce1bb9c3bb16da043f654391dc29075a1a Mon Sep 17 00:00:00 2001
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From: Michal Sekletar <msekleta@redhat.com>
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Date: Mon, 28 Aug 2017 17:33:24 +0200
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Subject: [PATCH] tmpfiles: with "e" don't attempt to set permissions when file
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doesn't exist
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tmpfiles.d option "e" when run through systemd-tmpfiles --create should
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apply configured permissions (uid,gid) only to already existing
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files. When file doesn't exist we bail out with error. Instead we should
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silently ignore non-existing files.
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$ useradd test
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$ cat /etc/tmpfiles.d/foobar.conf
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e /tmp/test - test test 1d
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$ ls -l /tmp/test
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ls: cannot access '/tmp/test': No such file or directory
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Before:
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$ systemd-tmpfiles --create /etc/tmpfiles.d/foobar.conf
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Adjusting owner and mode for /tmp/test failed: No such file or directory
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$ echo $?
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1
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After:
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$ systemd-tmpfiles --create /etc/tmpfiles.d/foobar.conf
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$ echo $?
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0
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(cherry picked from commit 3caf791a1702c97b99d2647c9d465af404f2913d)
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Conflicts:
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src/tmpfiles/tmpfiles.c
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Resolves: #1445732
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---
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src/tmpfiles/tmpfiles.c | 16 ++++++++++++++--
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1 file changed, 14 insertions(+), 2 deletions(-)
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diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
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index df7676b572..ed35b8cf0d 100644
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--- a/src/tmpfiles/tmpfiles.c
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+++ b/src/tmpfiles/tmpfiles.c
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@@ -585,8 +585,20 @@ static int path_set_perms(Item *i, const char *path) {
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* O_PATH. */
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fd = open(path, O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH|O_NOATIME);
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- if (fd < 0)
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- return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path);
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+ if (fd < 0) {
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+ int level = LOG_ERR, r = -errno;
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+
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+ /* Option "e" operates only on existing objects. Do not
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+ * print errors about non-existent files or directories */
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+ if (i->type == EMPTY_DIRECTORY && errno == ENOENT) {
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+ level = LOG_DEBUG;
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+ r = 0;
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+ }
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+
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+ log_full_errno(level, errno, "Adjusting owner and mode for %s failed: %m", path);
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+
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+ return r;
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+ }
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if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0)
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return log_error_errno(errno, "Failed to fstat() file %s: %m", path);
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