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mount-util: Add a helper for remounting a bind mount

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This commit is contained in:
Krzesimir Nowak
2024-02-22 19:06:22 +01:00
parent c0b5b74ae3
commit 1927bcdc67
3 changed files with 30 additions and 0 deletions
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src/test/test-mount-util.c
+19
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@@ -213,6 +213,25 @@ TEST(bind_remount_one) {
_exit(EXIT_SUCCESS);
}
assert_se(wait_for_terminate_and_check("test-remount-one-with-mountinfo", pid, WAIT_LOG) == EXIT_SUCCESS);
pid = fork();
assert_se(pid >= 0);
if (pid == 0) {
/* child */
assert_se(detach_mount_namespace() >= 0);
assert_se(bind_remount_one("/run", MS_RDONLY, MS_RDONLY) >= 0);
assert_se(bind_remount_one("/run", MS_NOEXEC, MS_RDONLY|MS_NOEXEC) >= 0);
assert_se(bind_remount_one("/proc/idontexist", MS_RDONLY, MS_RDONLY) == -ENOENT);
assert_se(bind_remount_one("/proc/self", MS_RDONLY, MS_RDONLY) == -EINVAL);
assert_se(bind_remount_one("/", MS_RDONLY, MS_RDONLY) >= 0);
_exit(EXIT_SUCCESS);
}
assert_se(wait_for_terminate_and_check("test-remount-one", pid, WAIT_LOG) == EXIT_SUCCESS);
}