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309c81e7e2
When samba runs as ADDC only the main 'samba' daemon have to notify its status to systemd because our systemd unit files contains implied NotifyAccess=main since commit d1740fb3d5a72cb49e30b330bb0b01e7ef3e09cc. This commit adds a function to disable the systemd notification in the smbd and winbinddd child processes started by the main 'samba' daemon in AD DC mode to avoid warnings like: systemd[1]: samba-ad-dc.service: Got notification message from PID 26194, but reception only permitted for main PID 26187 systemd[1]: samba-ad-dc.service: Got notification message from PID 26222, but reception only permitted for main PID 26187 $ pstree -p ... ├─samba(26187)─┬─tfork(26189)(26188)───s3fs[master](26189)───tfork(26194)(26193)───smbd(26194)─┬─cleanupd(+ │ │ ├─lpqd(2623+ │ │ └─smbd-noti+ │ ├─tfork(26191)(26190)───rpc[master](26191)─┬─tfork(26198)(26195)───rpc(0)(26198) │ │ ├─tfork(26200)(26199)───rpc(1)(26200) │ │ ├─tfork(26206)(26201)───rpc(2)(26206) │ │ └─tfork(26212)(26207)───rpc(3)(26212) │ ├─tfork(26196)(26192)───nbt[master](26196) │ ├─tfork(26202)(26197)───wrepl[master](26202) │ ├─tfork(26204)(26203)───ldap[master](26204)─┬─tfork(26242)(26241)───ldap(0)(26242) │ │ ├─tfork(26244)(26243)───ldap(1)(26244) │ │ ├─tfork(26246)(26245)───ldap(2)(26246) │ │ └─tfork(26248)(26247)───ldap(3)(26248) │ ├─tfork(26208)(26205)───cldap[master](26208) │ ├─tfork(26210)(26209)───kdc[master](26210)───tfork(26218)(26215)───krb5kdc(26218) │ ├─tfork(26213)(26211)───drepl[master](26213) │ ├─tfork(26216)(26214)───winbindd[master(26216)───tfork(26222)(26219)───winbindd(26222)───wi+ │ ├─tfork(26220)(26217)───ntp_signd[maste(26220) │ ├─tfork(26223)(26221)───kcc[master](26223) │ ├─tfork(26225)(26224)───dnsupdate[maste(26225) │ └─tfork(26227)(26226)───dns[master](26227) Signed-off-by: Samuel Cabrero <scabrero@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/*
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Unix SMB/CIFS implementation.
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Samba utility functions
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Copyright (C) Andrew Tridgell 1992-1998
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Copyright (C) Jeremy Allison 2001-2002
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Copyright (C) Simo Sorce 2001
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Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2003.
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Copyright (C) James J Myers 2003
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _BECOME_DAEMON_H
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#define _BECOME_DAEMON_H
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#include <stdbool.h>
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/**
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* @file become_daemon.h
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*
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* @brief Utilities for demonising
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*/
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/**
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* @brief Close the low 3 file descriptors and open /dev/null in their place
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*
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* @param[in] stdin_too Should stdin be closed?
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* @param[in] stdout_too Should stdout be closed?
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* @param[in] stderr_too Should stderr be closed?
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**/
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void close_low_fds(bool stdin_too, bool stdout_too, bool stderr_too);
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/**
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* @brief Enable or disable daemon status systemd notifications
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*
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* When samba runs as AD DC only the main 'samba' process has to
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* notify systemd. Child processes started by the main 'samba', like
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* smbd and winbindd should call this function to disable sd_notify()
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* calls.
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*
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* @param[in] enable True to enable notifications, false to disable
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**/
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void daemon_sd_notifications(bool enable);
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/**
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* @brief Become a daemon, optionally discarding the controlling terminal
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*
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* @param[in] do_fork Should the process fork?
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* @param[in] no_session Don't start a new session
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* @param[in] log_stdour Should stdout be closed?
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**/
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void become_daemon(bool do_fork, bool no_session, bool log_stdout);
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/**
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* @brief Exit daemon and log an error message at ERR level
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*
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* Optionally report failure to systemd if systemd integration is
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* enabled.
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*
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* @param[in] msg Message to log, generated from error if NULL
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* @param[in] error Errno of error that occurred
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**/
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void exit_daemon(const char *msg, int error);
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/**
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* @brief Log at ERR level that the daemon is ready to serve connections
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*
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* Optionally report status to systemd if systemd integration is enabled.
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*
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* @param[in] daemon Name of daemon to include it message
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**/
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void daemon_ready(const char *daemon);
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/**
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* @brief Log at ERR level the specified daemon status
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*
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* For example if it is not ready to serve connections and is waiting
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* for some event to happen.
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*
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* Optionally report status to systemd if systemd integration is enabled.
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*
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* @param[in] daemon Name of daemon to include it message
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* @param[in] msg Message to log
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**/
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void daemon_status(const char *daemon, const char *msg);
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#endif /* _BECOME_DAEMON_H */
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