samba/samba-systemd-notification.patch

From 9dd1a4809b1b6d65bfb2258b443b0fe36e0a32f7 Mon Sep 17 00:00:00 2001
From: Alexander Bokovoy <ab@samba.org>
Date: Sat, 24 Oct 2020 16:52:43 +0300
Subject: [PATCH] daemons: report status to systemd even when running in
 foreground

When systemd launches samba services, the configuration we have in
systemd service files expects that the main process (/usr/sbin/*)
would use sd_notify() to report back its status. However, we only use
sd_notify() when running become_daemon().

As a result, samba/smbd/winbindd/nmbd processes never report back its
status and the status updates from other childs (smbd, winbindd, etc)
are not accepted as we now have implied NotifyAccess=main since commit
d1740fb3d5a72cb49e30b330bb0b01e7ef3e09cc

This leads to a timeout and killing samba process by systemd. Situation
is reproducible in Fedora 33, for example.

Make sure that we have required status updates for all daemons in case
we aren't runnning in interactive mode.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=14552

Signed-off-by: Alexander Bokovoy <ab@samba.org>
---
 source3/nmbd/nmbd.c         | 4 +++-
 source3/smbd/server.c       | 4 +++-
 source3/winbindd/winbindd.c | 5 ++++-
 source4/smbd/server.c       | 4 +++-
 4 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/source3/nmbd/nmbd.c b/source3/nmbd/nmbd.c
index 0b881d13f7b..f6aeba1f714 100644
--- a/source3/nmbd/nmbd.c
+++ b/source3/nmbd/nmbd.c
@@ -1009,6 +1009,8 @@ static bool open_sockets(bool isdaemon, int port)
 	if (is_daemon && !opt_interactive) {
 		DEBUG(3, ("Becoming a daemon.\n"));
 		become_daemon(Fork, no_process_group, log_stdout);
+	} else if (!opt_interactive) {
+		daemon_status("nmbd", "Starting process...");
 	}
 
 #ifdef HAVE_SETPGID
@@ -1135,7 +1137,7 @@ static bool open_sockets(bool isdaemon, int port)
 		exit_daemon( "NMBD failed to setup packet server.", EACCES);
 	}
 
-	if (is_daemon && !opt_interactive) {
+	if (!opt_interactive) {
 		daemon_ready("nmbd");
 	}
 
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 153dd3c9323..3d9db5d8407 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -1893,6 +1893,8 @@ extern void build_options(bool screen);
 	if (is_daemon && !interactive) {
 		DEBUG(3, ("Becoming a daemon.\n"));
 		become_daemon(Fork, no_process_group, log_stdout);
+	} else {
+		daemon_status("smbd", "Starting process ...");
 	}
 
 #ifdef HAVE_SETPGID
@@ -2100,7 +2102,7 @@ extern void build_options(bool screen);
 		exit_daemon("Samba cannot setup ep pipe", EACCES);
 	}
 
-	if (is_daemon && !interactive) {
+	if (!interactive) {
 		daemon_ready("smbd");
 	}
 
diff --git a/source3/winbindd/winbindd.c b/source3/winbindd/winbindd.c
index 4397a1bc0d1..1e08237905a 100644
--- a/source3/winbindd/winbindd.c
+++ b/source3/winbindd/winbindd.c
@@ -1880,8 +1880,11 @@ int main(int argc, const char **argv)
 	BlockSignals(False, SIGHUP);
 	BlockSignals(False, SIGCHLD);
 
-	if (!interactive)
+	if (!interactive) {
 		become_daemon(Fork, no_process_group, log_stdout);
+	} else {
+		daemon_status("winbindd", "Starting process ...");
+	}
 
 	pidfile_create(lp_pid_directory(), "winbindd");
 
diff --git a/source4/smbd/server.c b/source4/smbd/server.c
index 95acb99b86c..ee2e7508bb3 100644
--- a/source4/smbd/server.c
+++ b/source4/smbd/server.c
@@ -648,6 +648,8 @@ static int binary_smbd_main(const char *binary_name,
 	if (opt_daemon) {
 		DBG_NOTICE("Becoming a daemon.\n");
 		become_daemon(opt_fork, opt_no_process_group, false);
+	} else if (!opt_interactive) {
+		daemon_status("samba", "Starting process...");
 	}
 
 	/* Create the memory context to hang everything off. */
@@ -931,7 +933,7 @@ static int binary_smbd_main(const char *binary_name,
 		}
 	}
 
-	if (opt_daemon) {
+	if (!opt_interactive) {
 		daemon_ready("samba");
 	}
 
-- 
2.28.0