1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
import ipaddress
import random
 
import flask
import pyroute2
from docker_plugin_api.NetworkDriverEntities import *
from docker_plugin_api.Plugin import Blueprint, InputValidationException
 
from .NetworkDriverData import *
 
app = Blueprint('NetworkDriver', __name__)
 
 
def genid(size=8, chars='0123456789abcdef'):
    return ''.join([random.choice(chars) for _ in range(size)])
 
 
@app.route('/NetworkDriver.GetCapabilities', methods=['POST'])
def GetCapabilities():
    return {
        'Scope': 'local',
        'ConnectivityScope': 'global',
    }
 
 
@app.route('/NetworkDriver.CreateNetwork', methods=['POST'])
def CreateNetwork():
    network = NetworkCreateEntity(**flask.request.get_json(force=True))
    try:
        for option, value in network.Options['com.docker.network.generic'].items():
            if option not in network.Options:
                network.Options[option] = value
    except KeyError:
        pass
    networks[network.NetworkID] = network
    return {}
 
 
@app.route('/NetworkDriver.DeleteNetwork', methods=['POST'])
def DeleteNetwork():
    network = NetworkDeleteEntity(**flask.request.get_json(force=True))
    del networks[network.NetworkID]
    return {}
 
 
@app.route('/NetworkDriver.CreateEndpoint', methods=['POST'])
def CreateEndpoint():
    endpoint = EndpointCreateEntity(**flask.request.get_json(force=True))
 
    endpoints['{}-{}'.format(endpoint.NetworkID, endpoint.EndpointID)] = endpoint
    return {
        'Interface': {
        }
    }
 
 
@app.route('/NetworkDriver.EndpointOperInfo', methods=['POST'])
def EndpointOperInfo():
    endpoint = EndpointOperInfoEntity(**flask.request.get_json(force=True))
    return {
        'Value': {
        }
    }
 
 
@app.route('/NetworkDriver.DeleteEndpoint', methods=['POST'])
def DeleteEndpoint():
    entity = EndpointDeleteEntity(**flask.request.get_json(force=True))
    endpoint = endpoints['{}-{}'.format(entity.NetworkID, entity.EndpointID)]
 
    try:
        with pyroute2.IPRoute() as ip:
            iface = ip.link_lookup(ifname=endpoint.Interface.Peer)[0]
            if iface:
                ip.link('del', index=iface)
        del endpoint.Interface.Name
        del endpoint.Interface.Peer
    except AttributeError:
        pass
 
    del endpoints['{}-{}'.format(endpoint.NetworkID, endpoint.EndpointID)]
    return {}
 
 
@app.route('/NetworkDriver.Join', methods=['POST'])
def Join():
    join = JoinEntity(**flask.request.get_json(force=True))
    network = networks[join.NetworkID]
    endpoint = endpoints['{}-{}'.format(join.NetworkID, join.EndpointID)]
 
    ifname0 = 'veth{}'.format(genid())
    ifname1 = 'veth{}'.format(genid())
    with pyroute2.IPRoute() as ip:
        ip.link('add', ifname=ifname0, peer=ifname1, kind='veth')
        idx = ip.link_lookup(ifname=ifname0)[0]
        if endpoint.Interface.MacAddress:
            ip.link('set', index=idx, address=endpoint.Interface.MacAddress)
        ip.link('set', index=idx, state='up')
        if endpoint.Interface.Address:
            addr = ipaddress.ip_interface(endpoint.Interface.Address)
            ip.addr('add', index=idx, address=addr.ip.compressed, mask=addr.network.prefixlen)
        if endpoint.Interface.AddressIPv6:
            addr = ipaddress.ip_interface(endpoint.Interface.AddressIPv6)
            ip.addr('add', index=idx, address=addr.ip.compressed, mask=addr.network.prefixlen)
        endpoint.Interface.Name = ifname0
 
        idx = ip.link_lookup(ifname=ifname1)[0]
        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))
        endpoint.Interface.Peer = ifname1
 
    gw4 = None
    for net4 in network.IPv4:
        try:
            gw4 = ipaddress.ip_interface(net4.Gateway)
            break
        except:
            pass
    gw6 = None
    for net6 in network.IPv6:
        try:
            gw6 = ipaddress.ip_interface(net6.Gateway)
            break
        except:
            pass
 
    result = {
        'InterfaceName': {
            'SrcName': ifname0,
            'DstPrefix': 'eth',
        },
    }
    if gw4 is not None:
        result['Gateway'] = gw4.ip.compressed
    if gw6 is not None:
        result['GatewayIPv6'] = gw6.ip.compressed
    return result
 
 
@app.route('/NetworkDriver.Leave', methods=['POST'])
def Leave():
    leave = LeaveEntity(**flask.request.get_json(force=True))
    endpoint = endpoints['{}-{}'.format(leave.NetworkID, leave.EndpointID)]
 
    try:
        with pyroute2.IPRoute() as ip:
            iface = ip.link_lookup(ifname=endpoint.Interface.Peer)[0]
            if iface:
                ip.link('del', index=iface)
        del endpoint.Interface.Name
        del endpoint.Interface.Peer
    except AttributeError:
        pass
 
    return {}
 
 
@app.route('/NetworkDriver.DiscoverNew', methods=['POST'])
def DiscoverNew():
    entity = DiscoverNewEntity(**flask.request.get_json(force=True))
    return {}
 
 
@app.route('/NetworkDriver.DiscoverDelete', methods=['POST'])
def DiscoverDelete():
    entity = DiscoverDeleteEntity(**flask.request.get_json(force=True))
    return {}
 
 
@app.route('/NetworkDriver.ProgramExternalConnectivity', methods=['POST'])
def ProgramExternalConnectivity():
    entity = ProgramExternalConnectivityEntity(**flask.request.get_json(force=True))
    return {}
 
 
@app.route('/NetworkDriver.RevokeExternalConnectivity', methods=['POST'])
def RevokeExternalConnectivity():
    entity = RevokeExternalConnectivityEntity(**flask.request.get_json(force=True))
    return {}