openssh: Add sshd.service

For systems with a large amount of SSH traffic, it shoule be better to
run a single SSH server for all incoming connections.

And both sshd.socket and sshd.service are deployed on other distros
like ubuntu, fedora and etc.

So add sshd.service to make it possible to run a standalone SSH server.

(From OE-Core rev: 3ecebc70f957e53e3dcf1cc835ff359115db6e56)

Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-connectivity/openssh/openssh/sshd.service

@@ -0,0 +1,17 @@
+[Unit]
+Description=OpenSSH server daemon
+Wants=sshdgenkeys.service
+After=sshdgenkeys.service
+
+[Service]
+Environment="SSHD_OPTS="
+EnvironmentFile=-/etc/default/ssh
+ExecStartPre=/usr/bin/mkdir -p /var/run/sshd
+ExecStart=-@SBINDIR@/sshd -D $SSHD_OPTS
+ExecReload=@BASE_BINDIR@/kill -HUP $MAINPID
+KillMode=process
+Restart=on-failure
+RestartSec=42s
+
+[Install]
+WantedBy=multi-user.target

meta/recipes-connectivity/openssh/openssh_9.5p1.bb

@@ -16,6 +16,7 @@ SRC_URI = "http://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${PV}.tar
            file://ssh_config \
            file://init \
            ${@bb.utils.contains('DISTRO_FEATURES', 'pam', '${PAM_SRC_URI}', '', d)} \
+           file://sshd.service \
            file://sshd.socket \
            file://sshd@.service \
            file://sshdgenkeys.service \
@@ -48,7 +49,7 @@ INITSCRIPT_NAME:${PN}-sshd = "sshd"
 INITSCRIPT_PARAMS:${PN}-sshd = "defaults 9"
 
 SYSTEMD_PACKAGES = "${PN}-sshd"
-SYSTEMD_SERVICE:${PN}-sshd = "sshd.socket"
+SYSTEMD_SERVICE:${PN}-sshd = "sshd.socket sshd.service"
 
 inherit autotools-brokensep ptest
 
@@ -122,6 +123,7 @@ do_install:append () {
 
 	install -d ${D}${systemd_system_unitdir}
 	install -c -m 0644 ${WORKDIR}/sshd.socket ${D}${systemd_system_unitdir}
+	install -c -m 0644 ${WORKDIR}/sshd.service ${D}${systemd_system_unitdir}
 	install -c -m 0644 ${WORKDIR}/sshd@.service ${D}${systemd_system_unitdir}
 	install -c -m 0644 ${WORKDIR}/sshdgenkeys.service ${D}${systemd_system_unitdir}
 	sed -i -e 's,@BASE_BINDIR@,${base_bindir},g' \