lib/NetworkDriver.py

@@ -15,7 +15,7 @@
    return ''.join([random.choice(chars) for _ in range(size)])


def create_interface(endpoint, network) -> str:
def create_interface(endpoint, network) -> tuple[str, str]:
    ifname0 = 'veth{}'.format(genid())
    ifname1 = 'veth{}'.format(genid())

@@ -37,10 +37,19 @@
        ip.link('set', index=idx, state='up')
        if 'parent' in network.Options:
            id_parent = ip.link_lookup(ifname=network.Options['parent'])[0]
            print(ip.link("set", index=idx, master=id_parent))
            ip.link("set", index=idx, master=id_parent)
        endpoint.Interface.Peer = ifname1

    return ifname0
    return ifname0, ifname1


def delete_interface(interface):
    try:
        with pyroute2.IPRoute() as ip:
            idx = ip.link_lookup(ifname=interface)[0]
            ip.link("delete", index=idx)
    except:
        pass


@app.route('/NetworkDriver.GetCapabilities', methods=['POST'])
@@ -48,6 +57,21 @@
    return {
        'Scope': 'local',
        'ConnectivityScope': 'global',
        'GwAllocChecker': True,
    }


@app.route('/NetworkDriver.GwAllocCheck', methods=['POST'])
def GwAllocCheck():
    request = GwAllocCheckEntity(**flask.request.get_json(force=True))
    skip_ipv4 = skip_ipv6 = request.Options.get('com.docker.network.generic', {}).get('nogw') == '1'
    if request.Options.get('com.docker.network.generic', {}).get('nogw4') == '1':
        skip_ipv4 = True
    if request.Options.get('com.docker.network.generic', {}).get('nogw6') == '1':
        skip_ipv6 = True
    return {
        'SkipIPv4': skip_ipv4,
        'SkipIPv6': skip_ipv6,
    }


@@ -108,7 +132,10 @@
    network = networks[join.NetworkID]
    endpoint = endpoints['{}-{}'.format(join.NetworkID, join.EndpointID)]

    interface = create_interface(endpoint, network)
    interface, interface_external = create_interface(endpoint, network)

    endpoint.internal_interface_name = interface
    endpoint.external_interface_name = interface_external

    gw4 = None
    for net4 in network.IPv4:
@@ -130,17 +157,35 @@
            'SrcName': interface,
            'DstPrefix': 'eth',
        },
        'StaticRoutes': [],
    }
    if gw4 is not None:
        result['Gateway'] = gw4.ip.compressed
    if gw6 is not None:
        result['GatewayIPv6'] = gw6.ip.compressed
    gw4 = endpoint.Options.get("gw4", network.Options.get("gw4", None))
    if gw4 is not None:
        result['StaticRoutes'].append({
            'Destination': gw4 + '/32',
            'RouteType': 1,
        })
        result['Gateway'] = gw4
    gw6 = endpoint.Options.get("gw6", network.Options.get("gw6", None))
    if gw6 is not None:
        result['StaticRoutes'].append({
            'Destination': gw6 + '/128',
            'RouteType': 1,
        })
        result['GatewayIPv6'] = gw6
    return result


@app.route('/NetworkDriver.Leave', methods=['POST'])
def Leave():
    leave = LeaveEntity(**flask.request.get_json(force=True))
    endpoint = endpoints.get('{}-{}'.format(leave.NetworkID, leave.EndpointID), None)
    if endpoint is not None and endpoint.external_interface_name:
        delete_interface(endpoint.external_interface_name)
    return {}