external-protocol: rename and update cni-protocol
cni-protocol can be used for both cni and netavark and also for many other things, such as vpn's that lack customized protocol supports for openwrt as a general externally managed protocol, so it was due to rename it. I also added one extra option, search domain, which is optional and updated scripts retrieving ip address and routing information. Signed-off-by: Oskari Rauta <oskari.rauta@gmail.com>
This commit is contained in:
Oskari Rauta
Tianling Shen
parent
c8d171cf30
commit
a0d7e40494
|
|
@ -1,70 +0,0 @@
|
|||
include $(TOPDIR)/rules.mk
|
||||
|
||||
PKG_NAME:=cni-protocol
|
||||
PKG_VERSION:=20231008
|
||||
PKG_RELEASE:=1
|
||||
|
||||
PKG_MAINTAINER:=Oskari Rauta <oskari.rauta@gmail.com>
|
||||
|
||||
include $(INCLUDE_DIR)/package.mk
|
||||
|
||||
define Package/cni-protocol
|
||||
SECTION:=net
|
||||
CATEGORY:=Network
|
||||
TITLE:=cni netifd protocol
|
||||
PKGARCH:=all
|
||||
endef
|
||||
|
||||
define Package/cni-protocol/description
|
||||
protocol support for netavark/cni networks for netifd
|
||||
makes defining networks for podman and other similar
|
||||
systems easier and simple.
|
||||
|
||||
with protocol, a network where firewall and portmapper
|
||||
management is disabled, control of firewalling, whether
|
||||
it was exposing ports, and forwarding to them from wan,
|
||||
or limiting/accepting access to other networks such
|
||||
as lan can made through openwrt's own firewalling
|
||||
configuration.
|
||||
|
||||
example configuration could be as following:
|
||||
- lan network: 10.0.0.0/16 (255.255.0.0)
|
||||
- container network: 10.129.0.1/24 (255.255.255.0)
|
||||
|
||||
Add a network configuration for your container network
|
||||
using cni protocol. Then create firewall zone for it.
|
||||
|
||||
You could create a new container/pod with static ip
|
||||
address 10.129.0.2 (as 10.129.0.1 as container network's
|
||||
gateway).
|
||||
|
||||
Easily define permissions so that local networks can
|
||||
connect to cni network, but not the other way around.
|
||||
Also you want to allow forwarding from/to wan.
|
||||
|
||||
Now, as cni cannot access local dns, make a rule for
|
||||
your firewall to accept connections from cni network
|
||||
to port 53 (dns).
|
||||
|
||||
Now all you have to do, is make redirects to your firewall
|
||||
and point them to 10.129.0.2 and connections from wan are
|
||||
redirectered to containers/pods.
|
||||
|
||||
Protocol has 2 settings: device and delay. Sometimes polling
|
||||
interfaces takes some time, and in that case you might want
|
||||
to add few seconds to delay. Otherwise, it can be excluded
|
||||
from configuration.
|
||||
endef
|
||||
|
||||
define Build/Configure
|
||||
endef
|
||||
|
||||
define Build/Compile
|
||||
endef
|
||||
|
||||
define Package/cni-protocol/install
|
||||
$(INSTALL_DIR) $(1)/lib/netifd/proto
|
||||
$(INSTALL_BIN) ./files/cni.sh $(1)/lib/netifd/proto/cni.sh
|
||||
endef
|
||||
|
||||
$(eval $(call BuildPackage,cni-protocol))
|
||||
|
|
@ -1,68 +0,0 @@
|
|||
#!/bin/sh
|
||||
|
||||
[ -n "$INCLUDE_ONLY" ] || {
|
||||
. /lib/functions.sh
|
||||
. ../netifd-proto.sh
|
||||
init_proto "$@"
|
||||
}
|
||||
|
||||
proto_cni_init_config() {
|
||||
no_device=0
|
||||
available=0
|
||||
|
||||
proto_config_add_string "device:device"
|
||||
proto_config_add_int "delay"
|
||||
}
|
||||
|
||||
proto_cni_setup() {
|
||||
local cfg="$1"
|
||||
local iface="$2"
|
||||
local device delay
|
||||
|
||||
json_get_vars device delay
|
||||
|
||||
[ -n "$device" ] || {
|
||||
echo "No cni interface specified"
|
||||
proto_notify_error "$cfg" NO_DEVICE
|
||||
proto_set_available "$cfg" 0
|
||||
return 1
|
||||
}
|
||||
|
||||
[ -n "$delay" ] && sleep "$delay"
|
||||
|
||||
[ -L "/sys/class/net/${iface}" ] || {
|
||||
echo "The specified interface $iface is not present"
|
||||
proto_notify_error "$cfg" NO_DEVICE
|
||||
proto_set_available "$cfg" 0
|
||||
return 1
|
||||
}
|
||||
|
||||
local ipaddr netmask broadcast route routemask routesrc
|
||||
|
||||
ipaddr=$(ip -4 -o a show "$iface" | awk '{ print $4 }' | cut -d '/' -f1)
|
||||
netmask=$(ip -4 -o a show "$iface" | awk '{ print $4 }' | cut -d '/' -f2)
|
||||
broadcast=$(ip -4 -o a show "$iface" | awk '{ print $6 }')
|
||||
route=$(ip -4 -o r show dev "$iface" | awk '{ print $1 }' | cut -d '/' -f1)
|
||||
routemask=$(ip -4 -o r show dev "$iface" | awk '{ print $1 }' | cut -d '/' -f2)
|
||||
routesrc=$(ip -4 -o r show dev "$iface" | awk '{ print $7 }')
|
||||
|
||||
[ -z "$ipaddr" ] && {
|
||||
echo "interface $iface does not have ip address"
|
||||
proto_notify_error "$cfg" NO_IPADDRESS
|
||||
return 1
|
||||
}
|
||||
|
||||
proto_init_update "$iface" 1
|
||||
[ -n "$ipaddr" ] && proto_add_ipv4_address "$ipaddr" "$netmask" "$broadcast" ""
|
||||
[ -n "$route" ] && proto_add_ipv4_route "$route" "$routemask" "" "$routesrc" ""
|
||||
proto_send_update "$cfg"
|
||||
}
|
||||
|
||||
proto_cni_teardown() {
|
||||
local cfg="$1"
|
||||
return 0
|
||||
}
|
||||
|
||||
[ -n "$INCLUDE_ONLY" ] || {
|
||||
add_protocol cni
|
||||
}
|
||||
|
|
@ -0,0 +1,87 @@
|
|||
include $(TOPDIR)/rules.mk
|
||||
|
||||
PKG_NAME:=external-protocol
|
||||
PKG_VERSION:=20231119
|
||||
PKG_RELEASE:=1
|
||||
|
||||
PKG_MAINTAINER:=Oskari Rauta <oskari.rauta@gmail.com>
|
||||
|
||||
include $(INCLUDE_DIR)/package.mk
|
||||
|
||||
define Package/external-protocol
|
||||
SECTION:=net
|
||||
CATEGORY:=Network
|
||||
TITLE:=externally managed protocol
|
||||
PKGARCH:=all
|
||||
endef
|
||||
|
||||
define Package/external-protocol/description
|
||||
external protocol is a general protocol for assisting
|
||||
setup of many virtual devices that lack proper
|
||||
protocol support in openwrt. Such as netavark, cni and
|
||||
netbird for example. External protocol is supposed
|
||||
to be managed with external software, not directly.
|
||||
|
||||
external protocol works automaticly on the background
|
||||
and sets up netifd details when interface comes up or
|
||||
goes down. This allows one to easily add interface to
|
||||
a firewall zone.
|
||||
|
||||
as a example use case, podman, with network where it's
|
||||
internal firewall and portmapper are disabled, control
|
||||
of firewalling, whether it was exposing ports or
|
||||
limiting/accepting access between networks, such as
|
||||
lan can be made through openwrt's own firewalling
|
||||
configuration if you used external protocol.
|
||||
|
||||
podman example configuration could be as following:
|
||||
- lan network: 10.0.0.0/16 (255.255.0.0)
|
||||
- container network: 10.129.0.1/24 (255.255.255.0)
|
||||
|
||||
Add a network configuration for your container network
|
||||
using external protocol. Then create firewall zone for it.
|
||||
|
||||
You could create a new container/pod with static ip
|
||||
address 10.129.0.2 (as 10.129.0.1 as container network's
|
||||
gateway).
|
||||
|
||||
Easily define permissions so that local networks can
|
||||
connect to container network, but not the other way around.
|
||||
Also you want to allow forwarding from/to wan.
|
||||
|
||||
Now, as container cannot access local dns, make a rule for
|
||||
your firewall to accept connections from container network
|
||||
to port 53 (dns).
|
||||
|
||||
Now all you have to do, is make redirects to your firewall
|
||||
and point them to 10.129.0.2 and connections from wan are
|
||||
redirectered to containers/pods.
|
||||
|
||||
external protocol also works for other applications as
|
||||
well that are using veth/tun/etc devices and don't have
|
||||
a hand-tailored protocol available, such as vpn service
|
||||
netbird.
|
||||
|
||||
Protocol has 3 settings: device, searchdomain and delay.
|
||||
Sometimes polling interfaces takes some time, and in
|
||||
that case you might want to add few seconds to delay.
|
||||
Otherwise, it can be excluded from configuration.
|
||||
Option for searchdomain is also completely optional.
|
||||
|
||||
package was previously known as cni protocol but as
|
||||
it can be used on so many other things, naming became
|
||||
mis-leading and it was renamed to external protocol.
|
||||
endef
|
||||
|
||||
define Build/Configure
|
||||
endef
|
||||
|
||||
define Build/Compile
|
||||
endef
|
||||
|
||||
define Package/external-protocol/install
|
||||
$(INSTALL_DIR) $(1)/lib/netifd/proto
|
||||
$(INSTALL_BIN) ./files/external.sh $(1)/lib/netifd/proto/external.sh
|
||||
endef
|
||||
|
||||
$(eval $(call BuildPackage,external-protocol))
|
||||
|
|
@ -0,0 +1,141 @@
|
|||
#!/bin/sh
|
||||
|
||||
[ -n "$INCLUDE_ONLY" ] || {
|
||||
. /lib/functions.sh
|
||||
. ../netifd-proto.sh
|
||||
init_proto "$@"
|
||||
}
|
||||
|
||||
proto_external_init_config() {
|
||||
no_device=0
|
||||
available=0
|
||||
|
||||
proto_config_add_string "device:device"
|
||||
proto_config_add_string "searchdomain"
|
||||
proto_config_add_int "delay"
|
||||
}
|
||||
|
||||
proto_external_setup() {
|
||||
local cfg="$1"
|
||||
local iface="$2"
|
||||
local device searchdomain delay
|
||||
|
||||
json_get_vars device searchdomain delay
|
||||
|
||||
[ -n "$device" ] || {
|
||||
echo "External protocol interface is not specified"
|
||||
proto_notify_error "$cfg" NO_DEVICE
|
||||
proto_set_available "$cfg" 0
|
||||
return 1
|
||||
}
|
||||
|
||||
[ -n "$delay" ] && sleep "$delay"
|
||||
|
||||
[ -L "/sys/class/net/${iface}" ] || {
|
||||
echo "External protocol interface $iface is not present"
|
||||
proto_notify_error "$cfg" NO_DEVICE
|
||||
proto_set_available "$cfg" 0
|
||||
return 1
|
||||
}
|
||||
|
||||
IP4ADDRS=
|
||||
IP6ADDRS=
|
||||
|
||||
local addresses="$(ip -json address list dev "$iface")"
|
||||
json_init
|
||||
json_load "{\"addresses\":${addresses}}"
|
||||
|
||||
if json_is_a addresses array; then
|
||||
json_select addresses
|
||||
json_select 1
|
||||
|
||||
if json_is_a addr_info array; then
|
||||
json_select addr_info
|
||||
|
||||
local i=1
|
||||
while json_is_a ${i} object; do
|
||||
json_select ${i}
|
||||
json_get_vars scope family local prefixlen broadcast
|
||||
|
||||
if [ "${scope}" == "global" ]; then
|
||||
case "${family}" in
|
||||
inet)
|
||||
append IP4ADDRS "$local/$prefixlen/$broadcast/"
|
||||
;;
|
||||
|
||||
inet6)
|
||||
append IP6ADDRS "$local/$prefixlen/$broadcast///"
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
|
||||
json_select ..
|
||||
i=$(( i + 1 ))
|
||||
done
|
||||
fi
|
||||
fi
|
||||
|
||||
IP4ROUTES=
|
||||
IP6ROUTES=
|
||||
|
||||
local routes="$(ip -json route list dev "$iface")"
|
||||
json_init
|
||||
json_load "{\"routes\":${routes}}"
|
||||
|
||||
if json_is_a routes array;then
|
||||
json_select routes
|
||||
|
||||
local i=1
|
||||
while json_is_a ${i} object; do
|
||||
json_select ${i}
|
||||
json_get_vars dst gateway metric prefsrc
|
||||
|
||||
case "${dst}" in
|
||||
*:*/*)
|
||||
append IP6ROUTES "$dst/$gateway/$metric///$prefsrc"
|
||||
;;
|
||||
*.*/*)
|
||||
append IP4ROUTES "$dst/$gateway/$metric///$prefsrc"
|
||||
;;
|
||||
*:*)
|
||||
append IP6ROUTES "$dst/128/$gateway/$metric///$prefsrc"
|
||||
;;
|
||||
*.*)
|
||||
append IP4ROUTES "$dst/32/$gateway/$metric///$prefsrc"
|
||||
;;
|
||||
esac
|
||||
|
||||
json_select ..
|
||||
i=$(( i + 1 ))
|
||||
done
|
||||
fi
|
||||
|
||||
[ -z "${IP4ADDRS}" -a -z "${IP6ADDRS}" ] && {
|
||||
echo "interface $iface does not have ip address"
|
||||
proto_notify_error "$cfg" NO_IPADDRESS
|
||||
return 1
|
||||
}
|
||||
|
||||
proto_init_update "$iface" 1
|
||||
|
||||
PROTO_IPADDR="${IP4ADDRS}"
|
||||
PROTO_IP6ADDR="${IP6ADDRS}"
|
||||
|
||||
PROTO_ROUTE="${IP4ROUTES}"
|
||||
PROTO_ROUTE6="${IP6ROUTES}"
|
||||
|
||||
[ -n "$searchdomain" ] && proto_add_dns_search "$searchdomain"
|
||||
|
||||
echo "$iface is up"
|
||||
|
||||
proto_send_update "$cfg"
|
||||
}
|
||||
|
||||
proto_external_teardown() {
|
||||
local cfg="$1"
|
||||
return 0
|
||||
}
|
||||
|
||||
[ -n "$INCLUDE_ONLY" ] || {
|
||||
add_protocol external
|
||||
}
|
||||
Loading…
Reference in New Issue