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#!/bin/sh /etc/rc.common
START=98
STOP=05
USE_PROCD=1
SAMBA_IFACE=""
config_get_sane() {
config_get "$@"
set -- "$(echo "$1" | tr -d '<>[]{};%?=#\n')"
}
smb_header() {
config_get_sane SAMBA_IFACE "$1" interface "lan"
# resolve interfaces
interfaces=$(
. /lib/functions/network.sh
for net in $SAMBA_IFACE; do
network_is_up "$net" || continue
network_get_device device "$net"
printf "%s " "${device:-$net}"
done
)
# we dont use netbios anymore as default and wsd/avahi is dns based
hostname="$(sed 's/\..*//' /proc/sys/kernel/hostname | tr -d '{};%?=#\n')"
config_get_sane workgroup "$1" workgroup "WORKGROUP"
config_get_sane description "$1" description "Samba on OpenWrt"
config_get_sane charset "$1" charset "UTF-8"
config_get_bool MACOS "$1" macos 0
config_get_bool DISABLE_NETBIOS "$1" disable_netbios 0
config_get_bool DISABLE_AD_DC "$1" disable_ad_dc 0
config_get_bool DISABLE_WINBIND "$1" disable_winbind 0
config_get_bool DISABLE_ASYNC_IO "$1" disable_async_io 0
config_get_bool ALLOW_LEGACY_PROTOCOLS "$1" allow_legacy_protocols 0
config_get_bool ENABLE_EXTRA_TUNING "$1" enable_extra_tuning 0
mkdir -p /var/etc
sed -e "s#|NAME|#$hostname#g" \
-e "s#|WORKGROUP|#$workgroup#g" \
-e "s#|DESCRIPTION|#$description#g" \
-e "s#|INTERFACES|#$interfaces#g" \
-e "s#|CHARSET|#$charset#g" \
/etc/samba/smb.conf.template > /var/etc/smb.conf
{
printf "\n######### Dynamic written config options #########\n"
# extra tuning options by community feedback (kinda try&error)
if [ "$ENABLE_EXTRA_TUNING" -eq 1 ]; then
socket_opt="$(grep -i 'socket options' /etc/samba/smb.conf.template | awk -F'=' '{print $2}' | tr -d '\n')"
[ -n "$socket_opt" ] && printf "\tsocket options =%s SO_KEEPALIVE\n" "$socket_opt" # add keepalive, maybe larger buffer? SO_RCVBUF=65536 SO_SNDBUF=65536
printf "\tmax xmit = 131072\n" # increase smb1 transmit size
printf "\tmin receivefile size = 131072\n" # allows zero-copy writes via fs
printf "\tfake oplocks = Yes\n" # may corrupt files for simultanous writes to the same files by multiple clients, but might also see big speed boost
printf "\tuse sendfile = Yes\n" # enable sendfile?
fi
if [ "$DISABLE_NETBIOS" -eq 1 ] || [ ! -x /usr/sbin/nmbd ]; then
printf "\tdisable netbios = yes\n"
# note: samba opens port 139 even if netbios is disabled via option above, so adjust listening ports
printf "\tsmb ports = 445\n"
fi
if [ "$DISABLE_ASYNC_IO" -eq 1 ]; then
printf "\taio read size = 0\n"
printf "\taio write size = 0\n"
fi
if [ "$ALLOW_LEGACY_PROTOCOLS" -eq 1 ]; then
logger -p daemon.info -t 'samba4-server' "Legacy Protocols allowed, don't use this option for secure environments!"
printf "\tserver min protocol = NT1\n"
printf "\tlanman auth = yes\n"
printf "\tntlm auth = ntlmv1-permitted\n"
fi
} >> /var/etc/smb.conf
[ -e /etc/samba/smb.conf ] || ln -nsf /var/etc/smb.conf /etc/samba/smb.conf
if [ ! -L /etc/samba/smb.conf ]; then
logger -p daemon.warn -t 'samba4-server' "Local custom /etc/samba/smb.conf file detected, all luci/config settings are ignored!"
fi
}
smb_add_share() {
config_get_sane name "$1" name
config_get_sane path "$1" path
config_get_sane users "$1" users
config_get_sane create_mask "$1" create_mask
config_get_sane dir_mask "$1" dir_mask
config_get_sane browseable "$1" browseable
config_get_sane read_only "$1" read_only
config_get_sane writeable "$1" writeable
config_get_sane guest_ok "$1" guest_ok
config_get_sane guest_only "$1" guest_only
config_get_sane inherit_owner "$1" inherit_owner
config_get_sane vfs_objects "$1" vfs_objects
config_get_bool timemachine "$1" timemachine 0
config_get_sane timemachine_maxsize "$1" timemachine_maxsize
config_get_bool force_root "$1" force_root 0
config_get_sane write_list "$1" write_list
config_get_sane read_list "$1" read_list
[ -z "$name" ] || [ -z "$path" ] && return
{
printf "\n[$name]\n\tpath = %s\n" "$path"
if [ "$force_root" -eq 1 ]; then
printf "\tforce user = root\n"
printf "\tforce group = root\n"
else
[ -n "$users" ] && printf "\tvalid users = %s\n" "$users"
fi
[ -n "$create_mask" ] && printf "\tcreate mask = %s\n" "$create_mask"
[ -n "$dir_mask" ] && printf "\tdirectory mask = %s\n" "$dir_mask"
[ -n "$browseable" ] && printf "\tbrowseable = %s\n" "$browseable"
[ -n "$read_only" ] && printf "\tread only = %s\n" "$read_only"
[ -n "$writeable" ] && printf "\twriteable = %s\n" "$writeable"
[ -n "$guest_ok" ] && printf "\tguest ok = %s\n" "$guest_ok"
[ -n "$guest_only" ] && printf "\tguest only = %s\n" "$guest_only"
[ -n "$inherit_owner" ] && printf "\tinherit owner = %s\n" "$inherit_owner"
[ -n "$write_list" ] && printf "\twrite list = %s\n" "$write_list"
[ -n "$read_list" ] && printf "\tread list = %s\n" "$read_list"
if [ "$MACOS" -eq 1 ]; then
vfs_objects="catia fruit streams_xattr $vfs_objects"
printf "\tfruit:encoding = native\n"
printf "\tfruit:metadata = stream\n"
printf "\tfruit:veto_appledouble = no\n"
# avoid mixed shares order for aapl
if [ "$timemachine" -eq 1 ]; then
printf "\tfruit:time machine = yes\n"
[ -n "$timemachine_maxsize" ] && printf "\tfruit:time machine max size = %sG\n" "${timemachine_maxsize}"
fi
fi
# always enable io_uring if we can ("should" fail silently via samba module load if no kernel support)
if [ "$DISABLE_ASYNC_IO" -ne 1 ] && [ -e /usr/lib/samba/vfs/io_uring.so ] ; then
logger -p daemon.info -t 'samba4-server' "io_uring module found, enabling VFS io_uring. (also needs Kernel 5.4+ Support)"
# make sure its last in list
if [ -n "$vfs_objects" ]; then
vfs_objects="$vfs_objects io_uring"
else
vfs_objects="io_uring"
fi
fi
[ -n "$vfs_objects" ] && printf "\tvfs objects = %s\n" "$vfs_objects"
} >> /var/etc/smb.conf
}
init_config() {
# Create samba dirs
[ -d /var/lib/samba ] || mkdir -m 755 -p /var/lib/samba
[ -d /var/cache/samba ] || mkdir -m 755 -p /var/cache/samba
[ -d /var/lock ] || mkdir -m 755 -p /var/lock
[ -d /var/run/samba ] || mkdir -p /var/run/samba
[ -d /var/log/samba ] || mkdir -p /var/log/samba
chmod 0755 /var/lock
chmod 0755 /var/lib/samba
chmod 0755 /var/cache/samba
config_load samba4
config_foreach smb_header samba
config_foreach smb_add_share sambashare
}
service_triggers() {
# PROCD_RELOAD_DELAY=1000
procd_add_reload_trigger "dhcp" "system" "samba4"
for i in $SAMBA_IFACE; do
procd_add_reload_interface_trigger "$i"
done
}
start_service() {
init_config
if [ ! -e /etc/samba/smb.conf ]; then
logger -p daemon.error -t 'samba4-server' "missing config /etc/samba/smb.conf!"
exit 1
fi
config_get_sane nice_value extra samba_nice 0
# start main AD-DC daemon, will spawn (smbd,nmbd,winbindd) as needed/configured.
if [ "$DISABLE_AD_DC" -ne 1 ] && [ -x /usr/sbin/samba ]; then
procd_open_instance
procd_set_param command /usr/sbin/samba -F
procd_set_param nice "$nice_value"
procd_set_param respawn
procd_set_param file /etc/samba/smb.conf
procd_set_param limits nofile=16384
procd_close_instance
else
# start fileserver daemon
procd_open_instance
procd_set_param command /usr/sbin/smbd -F
procd_set_param nice "$nice_value"
procd_set_param respawn
procd_set_param file /etc/samba/smb.conf
procd_set_param limits nofile=16384
procd_close_instance
# start netbios daemon
if [ "$DISABLE_NETBIOS" -ne 1 ] && [ -x /usr/sbin/nmbd ]; then
procd_open_instance
procd_set_param command /usr/sbin/nmbd -F
procd_set_param nice "$nice_value"
procd_set_param respawn
procd_set_param file /etc/samba/smb.conf
procd_close_instance
fi
# start winbind daemon
if [ "$DISABLE_WINBIND" -ne 1 ] && [ -x /usr/sbin/winbindd ]; then
procd_open_instance
procd_set_param command /usr/sbin/winbindd -F
procd_set_param nice "$nice_value"
procd_set_param respawn
procd_set_param file /etc/samba/smb.conf
procd_close_instance
fi
fi
}