53 lines
2.5 KiB
Diff
53 lines
2.5 KiB
Diff
From 578dc69f2a60d6282acc2d06ce8a3bf8a9d8ada0 Mon Sep 17 00:00:00 2001
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From: Yu Watanabe <watanabe.yu+github@gmail.com>
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Date: Fri, 6 Mar 2020 15:56:28 +0900
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Subject: [PATCH 0007/6858] execute: Fix migration from DynamicUser=yes to no
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Closes #12131.
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Reference: https://github.com/systemd/systemd/pull/15033/commits/578dc69f2a60d6282acc2d06ce8a3bf8a9d8ada0
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Conflict: remove the last arguement "NULL" of function "chase_symlinks"
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---
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src/core/execute.c | 13 +++++++++++--
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1 file changed, 11 insertions(+), 2 deletions(-)
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diff --git a/src/core/execute.c b/src/core/execute.c
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index 4595bb12dc..46b5c99ada 100644
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--- a/src/core/execute.c
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+++ b/src/core/execute.c
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@@ -2247,7 +2247,7 @@ static int setup_exec_directory(
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if (type != EXEC_DIRECTORY_CONFIGURATION &&
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readlink_and_make_absolute(p, &target) >= 0) {
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- _cleanup_free_ char *q = NULL;
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+ _cleanup_free_ char *q = NULL, *q_resolved = NULL, *target_resolved = NULL;
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/* This already exists and is a symlink? Interesting. Maybe it's one created
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* by DynamicUser=1 (see above)?
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@@ -2256,13 +2256,22 @@ static int setup_exec_directory(
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* since they all support the private/ symlink logic at least in some
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* configurations, see above. */
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+ r = chase_symlinks(target, NULL, 0, &target_resolved);
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+ if (r < 0)
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+ goto fail;
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+
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q = path_join(params->prefix[type], "private", *rt);
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if (!q) {
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r = -ENOMEM;
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goto fail;
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}
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- if (path_equal(q, target)) {
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+ /* /var/lib or friends may be symlinks. So, let's chase them also. */
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+ r = chase_symlinks(q, NULL, CHASE_NONEXISTENT, &q_resolved);
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+ if (r < 0)
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+ goto fail;
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+
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+ if (path_equal(q_resolved, target_resolved)) {
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/* Hmm, apparently DynamicUser= was once turned on for this service,
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* but is no longer. Let's move the directory back up. */
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--
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2.23.0
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