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RDKEMW-22087: Support configurable Dropbear host key files and command-line arguments #585

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RDKEMW-22087: Support configurable Dropbear host key files and command-line arguments #585

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db951dc
RDKEMW-22087: Support configurable Dropbear host key files and comman…
leenaS-d Jul 28, 2026
97641dd
RDKEMW-22087: Support configurable Dropbear host key files and comman…
leenaS-d Jul 28, 2026
61323b3
Merge pull request #591 from rdkcentral/develop
leenaS-d Jul 30, 2026
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23 changes: 14 additions & 9 deletions lib/rdk/start_ssh.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -95,14 +95,21 @@ isMOCASSHEnable=$(/usr/bin/tr181Set -d Device.DeviceInfo.X_RDKCENTRAL-COM_RFC.F
echo "RFC_ENABLE_MOCASSH:$isMOCASSHEnable"

if [ "$COMMUNITY_BUILDS" = "true" ]; then
EXTRA_ARGS=" -B "
DROPBEAR_KEY_DIR="/opt/dropbear"
if [ ! -f ${DROPBEAR_KEY_DIR}/dropbear_rsa_host_key ] ; then
# Source Dropbear configuration
[ -f /etc/default/dropbear ] && . /etc/default/dropbear

if [ ! -z "${DROPBEAR_EXTRA_ARGS}" ]; then
EXTRA_ARGS=" ${DROPBEAR_EXTRA_ARGS} "
fi
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if [ -z "${DROPBEAR_RSAKEY_DIR}" ]; then
echo "DROPBEAR_RSAKEY_DIR is not set"
exit 1
elif [ ! -f "${DROPBEAR_RSAKEY_DIR}/dropbear_rsa_host_key" ]; then
systemctl start dropbearkey.service
fi
DROPBEAR_PARAMS="${DROPBEAR_KEY_DIR}/dropbear_rsa_host_key"
else
EXTRA_ARGS=" -s -a"
fi

DROPBEAR_PARAMS="${DROPBEAR_RSAKEY_DIR}/dropbear_rsa_host_key ${EXTRA_ARGS}"
fi
loop=1
address=""
Expand Down Expand Up @@ -145,7 +152,6 @@ if [ "$DEVICE_TYPE" = "mediaclient" ]; then
else
/bin/systemctl set-environment DROPBEAR_PARAMS="-r $DROPBEAR_PARAMS_1 -r $DROPBEAR_PARAMS_2"
fi
/bin/systemctl set-environment DROPBEAR_EXTRA_ARGS="$EXTRA_ARGS"
/bin/systemctl set-environment IP_ADDRESS_PARAM="$IP_ADDRESS_PARAM"
else
dropbear -s -b /etc/sshbanner.txt -s -a -r $DROPBEAR_PARAMS_1 -r $DROPBEAR_PARAMS_2 $IP_ADDRESS_PARAM $USE_DEVKEYS &
Expand All @@ -165,7 +171,6 @@ startDropbear()
else
/bin/systemctl set-environment DROPBEAR_PARAMS="-r $DROPBEAR_PARAMS_1 -r $DROPBEAR_PARAMS_2"
fi
/bin/systemctl set-environment DROPBEAR_EXTRA_ARGS="$EXTRA_ARGS"
else
dropbear -b /etc/sshbanner.txt -s -a -r $DROPBEAR_PARAMS_1 -r $DROPBEAR_PARAMS_2 -p $ipAddress:22 $USE_DEVKEYS &
fi
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2 changes: 1 addition & 1 deletion systemd_units/dropbear.service
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Expand Up @@ -27,7 +27,7 @@ EnvironmentFile=-/etc/default/dropbear
EnvironmentFile=/etc/device.properties
ExecStartPre=/bin/sh /lib/rdk/start_ssh.sh
ExecStartPre=/bin/systemctl import-environment USE_DEVKEYS
ExecStart=/bin/sh -c '/usr/sbin/dropbear -s -b /etc/sshbanner.txt ${DROPBEAR_PARAMS} ${DROPBEAR_EXTRA_ARGS} ${IP_ADDRESS_PARAM} ${USE_DEVKEYS}'
ExecStart=/bin/sh -c '/usr/sbin/dropbear -s -b /etc/sshbanner.txt ${DROPBEAR_PARAMS} ${IP_ADDRESS_PARAM} ${USE_DEVKEYS}'
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ExecStartPost=/bin/sh -c "rm -rf /tmp/.dropbear"
RestartSec=5s
KillSignal=SIGHUP
Expand Down