Add useradd for sshd

RMxxx_rgmii_toolkit.sh

@@ -1103,14 +1103,14 @@ echo "                                           :+##+.            "
         wget -O /lib/systemd/system/sshd.service "https://raw.githubusercontent.com/$GITUSER/quectel-rgmii-toolkit/$GITTREE/sshd/sshd.service"
     	ln -sf "/lib/systemd/system/sshd.service" "/lib/systemd/system/multi-user.target.wants/"
         
-        opkg install openssh-server-pam
+        opkg install openssh-server-pam shadow-useradd
         /opt/bin/ssh-keygen -A
         systemctl daemon-reload
         systemctl enable sshd
 
         sed -i "s/^.*UsePAM .*/UsePAM yes/" "/opt/etc/ssh/sshd_config"
         sed -i "s/^.*PermitRootLogin .*/PermitRootLogin yes/" "/opt/etc/ssh/sshd_config"
-        adduser -u 106 -G nogroup -h /opt/var/run -s /bin/nologin -S -D -H  sshd
+        useradd -u 106 -g nogroup -d /opt/var/run -s /bin/nologin -r -N -M sshd
 
         systemctl start sshd
 

sshd/sshd.service

@@ -4,16 +4,13 @@ Documentation=man:sshd(8) man:sshd_config(5)
 After=network.target
 
 [Service]
+Type=simple
+PIDFile=/opt/var/run/sshd.pid
 ExecStartPre=/opt/sbin/sshd -t
 ExecStart=/opt/sbin/sshd -D
-ExecReload=/opt/sbin/sshd -t
 ExecReload=/bin/kill -HUP $MAINPID
 KillMode=process
 Restart=on-failure
-RestartPreventExitStatus=255
-Type=notify
-RuntimeDirectory=sshd
-RuntimeDirectoryMode=0755
 
 [Install]
 WantedBy=multi-user.target