You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
626 lines
14 KiB
626 lines
14 KiB
#!/bin/sh /etc/rc.common
|
|
|
|
START=90
|
|
STOP=10
|
|
|
|
USE_PROCD=1
|
|
PROG=/usr/lib/ipsec/starter
|
|
|
|
. $IPKG_INSTROOT/lib/functions.sh
|
|
. $IPKG_INSTROOT/lib/functions/network.sh
|
|
|
|
STRONGSWAN_CONF_FILE=/etc/strongswan.conf
|
|
STRONGSWAN_VAR_CONF_FILE=/var/ipsec/strongswan.conf
|
|
|
|
SWANCTL_CONF_FILE=/etc/swanctl/swanctl.conf
|
|
SWANCTL_VAR_CONF_FILE=/var/swanctl/swanctl.conf
|
|
|
|
WAIT_FOR_INTF=0
|
|
|
|
CONFIG_FAIL=0
|
|
|
|
time2seconds()
|
|
{
|
|
local timestring="$1"
|
|
local multiplier number suffix
|
|
|
|
suffix="${timestring//[0-9 ]}"
|
|
number="${timestring%%$suffix}"
|
|
[ "$number$suffix" != "$timestring" ] && return 1
|
|
case "$suffix" in
|
|
""|s)
|
|
multiplier=1 ;;
|
|
m)
|
|
multiplier=60 ;;
|
|
h)
|
|
multiplier=3600 ;;
|
|
d)
|
|
multiplier=86400 ;;
|
|
*)
|
|
return 1 ;;
|
|
esac
|
|
echo $(( number * multiplier ))
|
|
}
|
|
|
|
seconds2time()
|
|
{
|
|
local seconds="$1"
|
|
|
|
if [ $seconds -eq 0 ]; then
|
|
echo "0s"
|
|
elif [ $((seconds % 86400)) -eq 0 ]; then
|
|
echo "$((seconds / 86400))d"
|
|
elif [ $((seconds % 3600)) -eq 0 ]; then
|
|
echo "$((seconds / 3600))h"
|
|
elif [ $((seconds % 60)) -eq 0 ]; then
|
|
echo "$((seconds / 60))m"
|
|
else
|
|
echo "${seconds}s"
|
|
fi
|
|
}
|
|
|
|
file_reset() {
|
|
: > "$1"
|
|
}
|
|
|
|
xappend() {
|
|
local file="$1"
|
|
shift
|
|
|
|
echo "$@" >> "$file"
|
|
}
|
|
|
|
swan_reset() {
|
|
file_reset "$STRONGSWAN_VAR_CONF_FILE"
|
|
}
|
|
|
|
swan_xappend() {
|
|
xappend "$STRONGSWAN_VAR_CONF_FILE" "$@"
|
|
}
|
|
|
|
swan_xappend0() {
|
|
swan_xappend "$@"
|
|
}
|
|
|
|
swan_xappend1() {
|
|
swan_xappend " ""$@"
|
|
}
|
|
|
|
swan_xappend2() {
|
|
swan_xappend " ""$@"
|
|
}
|
|
|
|
swan_xappend3() {
|
|
swan_xappend " ""$@"
|
|
}
|
|
|
|
swan_xappend4() {
|
|
swan_xappend " ""$@"
|
|
}
|
|
|
|
swanctl_reset() {
|
|
file_reset "$SWANCTL_VAR_CONF_FILE"
|
|
}
|
|
|
|
swanctl_xappend() {
|
|
xappend "$SWANCTL_VAR_CONF_FILE" "$@"
|
|
}
|
|
|
|
swanctl_xappend0() {
|
|
swanctl_xappend "$@"
|
|
}
|
|
|
|
swanctl_xappend1() {
|
|
swanctl_xappend " ""$@"
|
|
}
|
|
|
|
swanctl_xappend2() {
|
|
swanctl_xappend " ""$@"
|
|
}
|
|
|
|
swanctl_xappend3() {
|
|
swanctl_xappend " ""$@"
|
|
}
|
|
|
|
swanctl_xappend4() {
|
|
swanctl_xappend " ""$@"
|
|
}
|
|
|
|
warning() {
|
|
echo "WARNING: $@" >&2
|
|
}
|
|
|
|
fatal() {
|
|
echo "ERROR: $@" >&2
|
|
CONFIG_FAIL=1
|
|
}
|
|
|
|
is_aead() {
|
|
local cipher="$1"
|
|
|
|
case "$cipher" in
|
|
aes*gcm*|aes*ccm*|aes*gmac*)
|
|
return 0 ;;
|
|
chacha20poly1305)
|
|
return 0 ;;
|
|
esac
|
|
|
|
return 1
|
|
}
|
|
|
|
add_esp_proposal() {
|
|
local encryption_algorithm
|
|
local hash_algorithm
|
|
local dh_group
|
|
|
|
config_get encryption_algorithm "$1" encryption_algorithm
|
|
config_get hash_algorithm "$1" hash_algorithm
|
|
config_get dh_group "$1" dh_group
|
|
|
|
# check for AEAD and clobber hash_algorithm if set
|
|
if is_aead "$encryption_algorithm" && [ -n "$hash_algorithm" ]; then
|
|
fatal "Can't have $hash_algorithm with $encryption_algorithm"
|
|
hash_algorithm=
|
|
fi
|
|
|
|
[ -n "$encryption_algorithm" ] && \
|
|
crypto="${crypto:+${crypto},}${encryption_algorithm}${hash_algorithm:+-${hash_algorithm}}${dh_group:+-${dh_group}}"
|
|
}
|
|
|
|
parse_esp_proposal() {
|
|
local conf="$1"
|
|
local var="$2"
|
|
|
|
local crypto=""
|
|
|
|
config_list_foreach "$conf" crypto_proposal add_esp_proposal
|
|
|
|
export -n "$var=$crypto"
|
|
}
|
|
|
|
add_ike_proposal() {
|
|
local encryption_algorithm
|
|
local hash_algorithm
|
|
local dh_group
|
|
local prf_algorithm
|
|
|
|
config_get encryption_algorithm "$1" encryption_algorithm
|
|
config_get hash_algorithm "$1" hash_algorithm
|
|
config_get dh_group "$1" dh_group
|
|
config_get prf_algorithm "$1" prf_algorithm
|
|
|
|
# check for AEAD and clobber hash_algorithm if set
|
|
if is_aead "$encryption_algorithm" && [ -n "$hash_algorithm" ]; then
|
|
fatal "Can't have $hash_algorithm with $encryption_algorithm"
|
|
hash_algorithm=
|
|
fi
|
|
|
|
[ -n "$encryption_algorithm" ] && \
|
|
crypto="${crypto:+${crypto},}${encryption_algorithm}${hash_algorithm:+-${hash_algorithm}}${prf_algorithm:+-${prf_algorithm}}${dh_group:+-${dh_group}}"
|
|
}
|
|
|
|
parse_ike_proposal() {
|
|
local conf="$1"
|
|
local var="$2"
|
|
|
|
local crypto=""
|
|
|
|
config_list_foreach "$conf" crypto_proposal add_ike_proposal
|
|
|
|
export -n "$var=$crypto"
|
|
}
|
|
|
|
config_conn() {
|
|
# Generic ipsec conn section shared by tunnel and transport
|
|
local config_name="$1"
|
|
local mode="$2"
|
|
|
|
local local_subnet
|
|
local local_nat
|
|
local updown
|
|
local firewall
|
|
local remote_subnet
|
|
local remote_sourceip
|
|
local lifetime
|
|
local dpdaction
|
|
local closeaction
|
|
local startaction
|
|
local if_id
|
|
local rekeytime
|
|
|
|
config_get startaction "$1" startaction "route"
|
|
config_get local_subnet "$1" local_subnet ""
|
|
config_get local_nat "$1" local_nat ""
|
|
config_get updown "$1" updown ""
|
|
config_get firewall "$1" firewall ""
|
|
config_get remote_subnet "$1" remote_subnet ""
|
|
config_get remote_sourceip "$1" remote_sourceip ""
|
|
config_get lifetime "$1" lifetime ""
|
|
config_get dpdaction "$1" dpdaction "none"
|
|
config_get closeaction "$1" closeaction "none"
|
|
config_get if_id "$1" if_id ""
|
|
config_get rekeytime "$1" rekeytime ""
|
|
|
|
local esp_proposal
|
|
parse_esp_proposal "$1" esp_proposal
|
|
|
|
# translate from ipsec to swanctl
|
|
case "$startaction" in
|
|
add)
|
|
startaction="none" ;;
|
|
route)
|
|
startaction="trap" ;;
|
|
start|none|trap)
|
|
# already using new syntax
|
|
;;
|
|
*)
|
|
fatal "Startaction $startaction unknown"
|
|
startaction=
|
|
;;
|
|
esac
|
|
|
|
case "$closeaction" in
|
|
none|clear)
|
|
closeaction="none" ;;
|
|
hold)
|
|
closeaction="trap" ;;
|
|
restart)
|
|
closeaction="start" ;;
|
|
trap|start)
|
|
# already using new syntax
|
|
;;
|
|
*)
|
|
fatal "Closeaction $closeaction unknown"
|
|
closeaction=
|
|
;;
|
|
esac
|
|
|
|
[ -n "$closeaction" -a "$closeaction" != "none" ] && warning "Closeaction $closeaction can cause instability"
|
|
|
|
case "$dpdaction" in
|
|
none)
|
|
dpddelay="0s"
|
|
dpdaction=
|
|
;;
|
|
clear)
|
|
;;
|
|
hold)
|
|
dpdaction="trap" ;;
|
|
restart)
|
|
dpdaction="start" ;;
|
|
trap|start)
|
|
# already using new syntax
|
|
;;
|
|
*)
|
|
fatal "Dpdaction $dpdaction unknown"
|
|
dpdaction=
|
|
;;
|
|
esac
|
|
|
|
[ -n "$local_nat" ] && local_subnet="$local_nat"
|
|
|
|
swanctl_xappend3 "$config_name {"
|
|
|
|
[ -n "$local_subnet" ] && swanctl_xappend4 "local_ts = $local_subnet"
|
|
[ -n "$remote_subnet" ] && swanctl_xappend4 "remote_ts = $remote_subnet"
|
|
[ -n "$if_id" ] && { swanctl_xappend4 "if_id_in = $if_id" ; swanctl_xappend4 "if_id_out = $if_id" ; }
|
|
[ -n "$startaction" -a "$startaction" != "none" ] && swanctl_xappend4 "start_action = $startaction"
|
|
[ -n "$closeaction" -a "$closeaction" != "none" ] && swanctl_xappend4 "close_action = $closeaction"
|
|
swanctl_xappend4 "esp_proposals = $esp_proposal"
|
|
swanctl_xappend4 "mode = $mode"
|
|
|
|
if [ -n "$lifetime" ]; then
|
|
swanctl_xappend4 "life_time = $lifetime"
|
|
elif [ -n "$rekeytime" ]; then
|
|
swanctl_xappend4 "life_time = $(seconds2time $(((110 * $(time2seconds $rekeytime)) / 100)))"
|
|
fi
|
|
[ -n "$rekeytime" ] && swanctl_xappend4 "rekey_time = $rekeytime"
|
|
|
|
[ -n "$updown" ] && swanctl_xappend4 "updown = $updown"
|
|
[ -n "$dpdaction" ] && swanctl_xappend4 "dpd_action = $dpdaction"
|
|
|
|
swanctl_xappend3 "}"
|
|
}
|
|
|
|
config_tunnel() {
|
|
config_conn "$1" "tunnel"
|
|
}
|
|
|
|
config_transport() {
|
|
config_conn "$1" "transport"
|
|
}
|
|
|
|
config_remote() {
|
|
local config_name="$1"
|
|
|
|
local enabled
|
|
local gateway
|
|
local local_gateway
|
|
local local_sourceip
|
|
local local_leftip
|
|
local remote_gateway
|
|
local pre_shared_key
|
|
local auth_method
|
|
local keyingtries
|
|
local dpddelay
|
|
local inactivity
|
|
local keyexchange
|
|
local reqid
|
|
local packet_marker
|
|
local fragmentation
|
|
local mobike
|
|
local local_cert
|
|
local local_key
|
|
local ca_cert
|
|
local rekeytime
|
|
|
|
config_get_bool enabled "$1" enabled 0
|
|
[ $enabled -eq 0 ] && return
|
|
|
|
config_get gateway "$1" gateway
|
|
config_get pre_shared_key "$1" pre_shared_key
|
|
config_get auth_method "$1" authentication_method
|
|
config_get local_identifier "$1" local_identifier ""
|
|
config_get remote_identifier "$1" remote_identifier ""
|
|
config_get local_sourceip "$1" local_sourceip ""
|
|
config_get local_leftip "$1" local_leftip "%any"
|
|
config_get keyingtries "$1" keyingtries "3"
|
|
config_get dpddelay "$1" dpddelay "30s"
|
|
config_get inactivity "$1" inactivity
|
|
config_get keyexchange "$1" keyexchange "ikev2"
|
|
config_get reqid "$1" reqid
|
|
config_get packet_marker "$1" packet_marker
|
|
config_get fragmentation "$1" fragmentation "yes"
|
|
config_get_bool mobike "$1" mobike 1
|
|
config_get local_cert "$1" local_cert ""
|
|
config_get local_key "$1" local_key ""
|
|
config_get ca_cert "$1" ca_cert ""
|
|
config_get rekeytime "$1" rekeytime
|
|
config_get overtime "$1" overtime
|
|
|
|
case "$fragmentation" in
|
|
0)
|
|
fragmentation="no" ;;
|
|
1)
|
|
fragmentation="yes" ;;
|
|
yes|accept|force|no)
|
|
# already using new syntax
|
|
;;
|
|
*)
|
|
fatal "Fragmentation $fragmentation not supported"
|
|
fragmentation=
|
|
;;
|
|
esac
|
|
|
|
[ "$gateway" = "any" ] && remote_gateway="%any" || remote_gateway="$gateway"
|
|
|
|
[ -z "$local_gateway" ] && {
|
|
local ipdest
|
|
|
|
[ "$remote_gateway" = "%any" ] && ipdest="1.1.1.1" || ipdest="$remote_gateway"
|
|
local_gateway=`ip -o route get $ipdest | awk '/ src / { gsub(/^.* src /,""); gsub(/ .*$/, ""); print $0}'`
|
|
}
|
|
|
|
local ike_proposal
|
|
parse_ike_proposal "$1" ike_proposal
|
|
|
|
[ -n "$firewall" ] && fatal "Firewall not supported"
|
|
|
|
swanctl_xappend0 "# config for $config_name"
|
|
swanctl_xappend0 "connections {"
|
|
swanctl_xappend1 "$config_name {"
|
|
swanctl_xappend2 "local_addrs = $local_leftip"
|
|
swanctl_xappend2 "remote_addrs = $remote_gateway"
|
|
|
|
[ -n "$local_sourceip" ] && swanctl_xappend2 "vips = $local_sourceip"
|
|
[ -n "$fragmentation" ] && swanctl_xappend2 "fragmentation = $fragmentation"
|
|
|
|
swanctl_xappend2 "local {"
|
|
swanctl_xappend3 "auth = $auth_method"
|
|
|
|
[ -n "$local_identifier" ] && swanctl_xappend3 "id = \"$local_identifier\""
|
|
[ "$auth_method" = pubkey ] && swanctl_xappend3 "certs = $local_cert"
|
|
swanctl_xappend2 "}"
|
|
|
|
swanctl_xappend2 "remote {"
|
|
swanctl_xappend3 "auth = $auth_method"
|
|
[ -n "$remote_identifier" ] && swanctl_xappend3 "id = \"$remote_identifier\""
|
|
swanctl_xappend2 "}"
|
|
|
|
swanctl_xappend2 "children {"
|
|
|
|
config_list_foreach "$1" tunnel config_tunnel
|
|
|
|
config_list_foreach "$1" transport config_transport
|
|
|
|
swanctl_xappend2 "}"
|
|
|
|
case "$keyexchange" in
|
|
ike)
|
|
;;
|
|
ikev1)
|
|
swanctl_xappend2 "version = 1" ;;
|
|
ikev2)
|
|
swanctl_xappend2 "version = 2" ;;
|
|
*)
|
|
fatal "Keyexchange $keyexchange not supported"
|
|
keyexchange=
|
|
;;
|
|
esac
|
|
|
|
[ $mobike -eq 1 ] && swanctl_xappend2 "mobike = yes" || swanctl_xappend2 "mobike = no"
|
|
|
|
if [ -n "$rekeytime" ]; then
|
|
swanctl_xappend2 "rekey_time = $rekeytime"
|
|
|
|
if [ -z "$overtime" ]; then
|
|
overtime=$(seconds2time $(($(time2seconds $rekeytime) / 10)))
|
|
fi
|
|
fi
|
|
[ -n "$overtime" ] && swanctl_xappend2 "over_time = $overtime"
|
|
|
|
swanctl_xappend2 "proposals = $ike_proposal"
|
|
[ -n "$dpddelay" ] && swanctl_xappend2 "dpd_delay = $dpddelay"
|
|
[ "$keyingtries" = "%forever" ] && swanctl_xappend2 "keyingtries = 0" || swanctl_xappend2 "keyingtries = $keyingtries"
|
|
|
|
swanctl_xappend1 "}"
|
|
swanctl_xappend0 "}"
|
|
|
|
if [ "$auth_method" = pubkey ]; then
|
|
swanctl_xappend0 ""
|
|
|
|
swanctl_xappend0 "secrets {"
|
|
swanctl_xappend1 "rsa {"
|
|
swanctl_xappend2 "filename = $local_key"
|
|
swanctl_xappend1 "}"
|
|
swanctl_xappend0 "}"
|
|
|
|
swanctl_xappend0 ""
|
|
|
|
if [ -n "$ca_cert" ]; then
|
|
swanctl_xappend0 "authorities {"
|
|
swanctl_xappend1 "$config_name {"
|
|
swanctl_xappend2 "cacert = $ca_cert"
|
|
swanctl_xappend1 "}"
|
|
swanctl_xappend0 "}"
|
|
fi
|
|
|
|
elif [ "$auth_method" = psk ]; then
|
|
swanctl_xappend0 ""
|
|
|
|
swanctl_xappend0 "secrets {"
|
|
swanctl_xappend1 "ike {"
|
|
swanctl_xappend2 "secret = $pre_shared_key"
|
|
if [ -z "$local_id" ]; then
|
|
swanctl_xappend2 "id1 = $local_id"
|
|
if [ -z "$remote_id" ]; then
|
|
swanctl_xappend2 "id2 = $remote_id"
|
|
fi
|
|
fi
|
|
else
|
|
fatal "AuthenticationMode $auth_mode not supported"
|
|
fi
|
|
|
|
swanctl_xappend0 ""
|
|
}
|
|
|
|
do_preamble() {
|
|
swanctl_xappend0 "# generated by /etc/init.d/swanctl"
|
|
}
|
|
|
|
config_ipsec() {
|
|
local debug
|
|
local rtinstall_enabled
|
|
local routing_tables_ignored
|
|
local routing_table
|
|
local routing_table_id
|
|
local interface
|
|
local device_list
|
|
|
|
config_get debug "$1" debug 0
|
|
config_get_bool rtinstall_enabled "$1" rtinstall_enabled 1
|
|
[ $rtinstall_enabled -eq 1 ] && install_routes=yes || install_routes=no
|
|
|
|
# prepare extra charon config option ignore_routing_tables
|
|
for routing_table in $(config_get "$1" "ignore_routing_tables"); do
|
|
if [ "$routing_table" -ge 0 ] 2>/dev/null; then
|
|
routing_table_id=$routing_table
|
|
else
|
|
routing_table_id=$(sed -n '/[ \t]*[0-9]\+[ \t]\+'$routing_table'[ \t]*$/s/[ \t]*\([0-9]\+\).*/\1/p' /etc/iproute2/rt_tables)
|
|
fi
|
|
|
|
[ -n "$routing_table_id" ] && append routing_tables_ignored "$routing_table_id"
|
|
done
|
|
|
|
local interface_list=$(config_get "$1" "interface")
|
|
if [ -z "$interface_list" ]; then
|
|
WAIT_FOR_INTF=0
|
|
else
|
|
for interface in $interface_list; do
|
|
network_get_device device $interface
|
|
[ -n "$device" ] && append device_list "$device" ","
|
|
done
|
|
[ -n "$device_list" ] && WAIT_FOR_INTF=0 || WAIT_FOR_INTF=1
|
|
fi
|
|
}
|
|
|
|
do_postamble() {
|
|
swan_xappend0 "# generated by /etc/init.d/swanctl"
|
|
swan_xappend0 "charon {"
|
|
swan_xappend1 "install_routes = $install_routes"
|
|
[ -n "$routing_tables_ignored" ] && swan_xappend1 "ignore_routing_tables = $routing_tables_ignored"
|
|
[ -n "$device_list" ] && swan_xappend1 "interfaces_use = $device_list"
|
|
swan_xappend1 "start-scripts {"
|
|
swan_xappend2 "load-all = /usr/sbin/swanctl --load-all --noprompt"
|
|
swan_xappend1 "}"
|
|
swan_xappend1 "syslog {"
|
|
swan_xappend2 "identifier = ipsec"
|
|
swan_xappend2 "daemon {"
|
|
swan_xappend3 "default = $debug"
|
|
swan_xappend2 "}"
|
|
swan_xappend1 "}"
|
|
swan_xappend0 "}"
|
|
}
|
|
|
|
prepare_env() {
|
|
mkdir -p /var/ipsec /var/swanctl
|
|
|
|
swan_reset
|
|
swanctl_reset
|
|
do_preamble
|
|
|
|
config_load ipsec
|
|
config_foreach config_ipsec ipsec
|
|
config_foreach config_remote remote
|
|
|
|
do_postamble
|
|
}
|
|
|
|
service_running() {
|
|
swanctl --stats > /dev/null 2>&1
|
|
}
|
|
|
|
reload_service() {
|
|
running && {
|
|
prepare_env
|
|
[ $WAIT_FOR_INTF -eq 0 ] && {
|
|
swanctl --load-all --noprompt
|
|
return
|
|
}
|
|
}
|
|
|
|
start
|
|
}
|
|
|
|
stop_service() {
|
|
swan_reset
|
|
swanctl_reset
|
|
}
|
|
|
|
service_triggers() {
|
|
procd_add_reload_trigger "ipsec"
|
|
config load "ipsec"
|
|
}
|
|
|
|
start_service() {
|
|
prepare_env
|
|
|
|
[ $WAIT_FOR_INTF -eq 1 ] && return
|
|
|
|
if [ $CONFIG_FAIL -ne 0 ]; then
|
|
procd_set_param error "Invalid configuration"
|
|
return
|
|
fi
|
|
|
|
procd_open_instance
|
|
|
|
procd_set_param command $PROG --daemon charon --nofork
|
|
|
|
procd_set_param file $SWANCTL_CONF_FILE
|
|
procd_append_param file /etc/swanctl/conf.d/*.conf
|
|
procd_append_param file $STRONGSWAN_CONF_FILE
|
|
|
|
procd_set_param respawn
|
|
|
|
procd_close_instance
|
|
}
|