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service: refuse using PID 1 as MAINPID for a service

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This commit is contained in:
Lennart Poettering 2017-02-28 16:08:40 +01:00
parent e8b509d3be
commit 6939ce648a
1 changed files with 2 additions and 0 deletions
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2
src/core/service.c
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@ -3093,6 +3093,8 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags, FDSet *fds)
log_unit_warning(u, "Failed to parse MAINPID= field in notification message: %s", e);
else if (pid == s->control_pid)
log_unit_warning(u, "A control process cannot also be the main process");
else if (pid == getpid() || pid == 1)
log_unit_warning(u, "Service manager can't be main process, ignoring sd_notify() MAINPID= field");
else {
service_set_main_pid(s, pid);
unit_watch_pid(UNIT(s), pid);