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/*
* 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 <stdio.h>
#include <getopt.h>
#include <LongBow/runtime.h>
#include <parc/algol/parc_Object.h>
#include <parc/security/parc_Security.h>
#include <ccnx/common/ccnx_Name.h>
#include <ccnx/api/ccnx_Portal/ccnx_Portal.h>
#include <ccnx/api/ccnx_Portal/ccnx_PortalRTA.h>
#include "iPing_Common.h"
typedef struct ccnx_ping_server {
CCNxPortal *portal;
CCNxName *prefix;
size_t payloadSize;
uint8_t generalPayload[ccnxPing_MaxPayloadSize];
} CCNxPingServer;
/**
* Create a new CCNxPortalFactory instance using a randomly generated identity saved to
* the specified keystore.
*
* @return A new CCNxPortalFactory instance which must eventually be released by calling ccnxPortalFactory_Release().
*/
static CCNxPortalFactory *_setupServerPortalFactory(void) {
const char *keystoreName = "server.keystore";
const char *keystorePassword = "keystore_password";
const char *subjectName = "server";
return ccnxPingCommon_SetupPortalFactory(keystoreName, keystorePassword, subjectName);
}
/**
* Release the references held by the `CCNxPingClient`.
*/
static bool _ccnxPingServer_Destructor(CCNxPingServer **serverPtr) {
CCNxPingServer *server = *serverPtr;
if (server->portal != NULL) {
ccnxPortal_Release(&(server->portal));
}
if (server->prefix != NULL) {
ccnxName_Release(&(server->prefix));
}
return true;
}
parcObject_Override(CCNxPingServer, PARCObject, .destructor = (PARCObjectDestructor *) _ccnxPingServer_Destructor);
parcObject_ImplementAcquire(ccnxPingServer, CCNxPingServer);
parcObject_ImplementRelease(ccnxPingServer, CCNxPingServer);
/**
* Create a new empty `CCNxPingServer` instance.
*/
static CCNxPingServer *ccnxPingServer_Create(void) {
CCNxPingServer *server = parcObject_CreateInstance(CCNxPingServer);
server->prefix = ccnxName_CreateFromCString(ccnxPing_DefaultPrefix);
server->payloadSize = ccnxPing_DefaultPayloadSize;
return server;
}
/**
* Create a `PARCBuffer` payload of the server-configured size.
*/
PARCBuffer *_ccnxPingServer_MakePayload(CCNxPingServer *server, int size) {
PARCBuffer *payload = parcBuffer_Wrap(server->generalPayload, size, 0, size);
return payload;
}
/**
* Run the `CCNxPingServer` indefinitely.
*/
static void _ccnxPingServer_Run(CCNxPingServer *server) {
CCNxPortalFactory *factory = _setupServerPortalFactory();
server->portal = ccnxPortalFactory_CreatePortal(factory, ccnxPortalRTA_Message);
ccnxPortalFactory_Release(&factory);
size_t yearInSeconds = 60 * 60 * 24 * 365;
size_t sizeIndex;
if (ccnxPortal_Listen(server->portal, server->prefix, yearInSeconds, CCNxStackTimeout_Never)) {
while (true) {
CCNxMetaMessage *request = ccnxPortal_Receive(server->portal, CCNxStackTimeout_Never);
// This should never happen.
if (request == NULL) {
break;
}
CCNxInterest *interest = ccnxMetaMessage_GetInterest(request);
if (interest != NULL) {
CCNxName *interestName = ccnxInterest_GetName(interest);
// Extract the size of the payload response from the client
sizeIndex = ccnxName_GetSegmentCount(interestName) - 2;
CCNxNameSegment *sizeSegment = ccnxName_GetSegment(interestName, sizeIndex);
char *segmentString = ccnxNameSegment_ToString(sizeSegment);
int size = atoi(segmentString);
size = size > ccnxPing_MaxPayloadSize ? ccnxPing_MaxPayloadSize : size;
PARCBuffer *payload = _ccnxPingServer_MakePayload(server, size);
CCNxContentObject *contentObject = ccnxContentObject_CreateWithNameAndPayload(interestName, payload);
CCNxMetaMessage *message = ccnxMetaMessage_CreateFromContentObject(contentObject);
if (ccnxPortal_Send(server->portal, message, CCNxStackTimeout_Never) == false) {
fprintf(stderr, "ccnxPortal_Send failed: %d\n", ccnxPortal_GetError(server->portal));
}
parcMemory_Deallocate(&segmentString);
ccnxContentObject_Release(&contentObject);
ccnxMetaMessage_Release(&message);
parcBuffer_Release(&payload);
}
ccnxMetaMessage_Release(&request);
}
}
}
/**
* Display the usage message.
*/
static void _displayUsage(char *progName) {
printf("CCNx Simple Ping Performance Test\n");
printf("\n");
printf("Usage: %s [-l locator] [-s size] \n", progName);
printf(" %s -h\n", progName);
printf("\n");
printf("Example:\n");
printf(" ccnxPing_Server -l ccnx:/some/prefix -s 1400\n");
printf("\n");
printf("Options:\n");
printf(" -h (--help) Show this help message\n");
printf(" -l (--locator) Set the locator for this server. The default is 'ccnx:/locator'. \n");
printf(
" -s (--size) Set the payload size (less than 1400 - see `ccnxPing_MaxPayloadSize` in ccnxPing_Common.h)\n");
}
/**
* Parse the command lines to initialize the state of the
*/
static bool _ccnxPingServer_ParseCommandline(CCNxPingServer *server, int argc, char *argv[argc]) {
static struct option longopts[] =
{{"locator", required_argument, NULL, 'l'}, {"size", required_argument, NULL, 's'},
{"help", no_argument, NULL, 'h'
}, {NULL, 0, NULL, 0}};
// Default value
server->payloadSize = ccnxPing_MaxPayloadSize;
int c;
while ((c = getopt_long(argc, argv, "l:s:h", longopts, NULL)) != -1) {
switch (c) {
case 'l':
server->prefix = ccnxName_CreateFromCString(optarg);
break;
case 's':
sscanf(optarg, "%zu", &(server->payloadSize));
if (server->payloadSize > ccnxPing_MaxPayloadSize) {
_displayUsage(argv[0]);
return false;
}
break;
case 'h':
_displayUsage(argv[0]);
return false;
default:
break;
}
}
return true;
};
int main(int argc, char *argv[argc]) {
parcSecurity_Init();
CCNxPingServer *server = ccnxPingServer_Create();
bool runServer = _ccnxPingServer_ParseCommandline(server, argc, argv);
if (runServer) {
_ccnxPingServer_Run(server);
}
ccnxPingServer_Release(&server);
parcSecurity_Fini();
return EXIT_SUCCESS;
}
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