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
|
/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <config.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <errno.h>
#include <ccnx/forwarder/metis/io/metis_UdpTunnel.h>
#include <ccnx/forwarder/metis/io/metis_UdpConnection.h>
#include <LongBow/runtime.h>
MetisIoOperations *
metisUdpTunnel_CreateOnListener(MetisForwarder *metis, MetisListenerOps *localListener, const CPIAddress *remoteAddress)
{
assertNotNull(metis, "Parameter metis must be non-null");
assertNotNull(localListener, "Parameter localListener must be non-null");
assertNotNull(remoteAddress, "Parameter remoteAddress must be non-null");
MetisLogger *logger = metisForwarder_GetLogger(metis);
MetisIoOperations *ops = NULL;
if (localListener->getEncapType(localListener) == METIS_ENCAP_UDP) {
const CPIAddress *localAddress = localListener->getListenAddress(localListener);
CPIAddressType localType = cpiAddress_GetType(localAddress);
CPIAddressType remoteType = cpiAddress_GetType(remoteAddress);
if (localType == remoteType) {
MetisAddressPair *pair = metisAddressPair_Create(localAddress, remoteAddress);
bool isLocal = false;
int fd = localListener->getSocket(localListener);
ops = metisUdpConnection_Create(metis, fd, pair, isLocal);
metisAddressPair_Release(&pair);
} else {
if (metisLogger_IsLoggable(logger, MetisLoggerFacility_IO, PARCLogLevel_Error)) {
metisLogger_Log(logger, MetisLoggerFacility_IO, PARCLogLevel_Error, __func__,
"Local listener of type %s and remote type %s, cannot establish tunnel",
cpiAddress_TypeToString(localType),
cpiAddress_TypeToString(remoteType));
}
}
} else {
if (metisLogger_IsLoggable(logger, MetisLoggerFacility_IO, PARCLogLevel_Error)) {
metisLogger_Log(logger, MetisLoggerFacility_IO, PARCLogLevel_Error, __func__,
"Local listener %p is not type UDP, cannot establish tunnel", (void *) localListener);
}
}
return ops;
}
/*
* wrapper for metisUdpTunnel_CreateOnListener. Lookup to see if we have a listener on the local address.
* If so, call metisUdpTunnel_CreateOnListener, otherwise return NULL
*/
MetisIoOperations *
metisUdpTunnel_Create(MetisForwarder *metis, const CPIAddress *localAddress, const CPIAddress *remoteAddress)
{
MetisListenerSet *set = metisForwarder_GetListenerSet(metis);
MetisListenerOps *listener = metisListenerSet_Find(set, METIS_ENCAP_UDP, localAddress);
MetisIoOperations *ops = NULL;
if (listener) {
ops = metisUdpTunnel_CreateOnListener(metis, listener, remoteAddress);
} else {
if (metisLogger_IsLoggable(metisForwarder_GetLogger(metis), MetisLoggerFacility_IO, PARCLogLevel_Error)) {
char *str = cpiAddress_ToString(localAddress);
metisLogger_Log(metisForwarder_GetLogger(metis), MetisLoggerFacility_IO, PARCLogLevel_Error, __func__,
"Could not find listener to match address %s", str);
parcMemory_Deallocate((void **) &str);
}
}
return ops;
}
|
