void
ccnl_simu_phase_two(void *ptr, void *dummy)
{
phaseOne = 0;
ccnl_set_timer(0, ccnl_simu_client_start, char2relay('A'), 0);
ccnl_set_timer(500000, ccnl_simu_client_start, char2relay('B'), 0);
}
void
ccnl_simu_add_fwd(char node, const char *name, char dstnode)
{
struct ccnl_relay_s *relay = char2relay(node), *dst = char2relay(dstnode);
struct ccnl_forward_s *fwd;
sockunion sun;
char *cp;
DEBUGMSG(TRACE, "ccnl_simu_add_fwd\n");
sun.eth.sll_family = AF_PACKET;
memcpy(sun.eth.sll_addr, dst->ifs[0].addr.eth.sll_addr, ETH_ALEN);
fwd = (struct ccnl_forward_s *) ccnl_calloc(1, sizeof(*fwd));
// fwd->prefix = ccnl_path_to_prefix(name);
cp = ccnl_strdup(name);
fwd->prefix = ccnl_URItoPrefix(cp, theSuite, NULL, NULL);
ccnl_free(cp);
fwd->suite = theSuite;
fwd->face = ccnl_get_face_or_create(relay, 0, &sun.sa, sizeof(sun.eth));
#ifdef USE_FRAG
// fwd->face->frag = ccnl_frag_new(CCNL_FRAG_SEQUENCED2012, 1500);
fwd->face->frag = ccnl_frag_new(CCNL_FRAG_CCNx2013, 1200);
#endif
fwd->face->flags |= CCNL_FACE_FLAGS_STATIC;
fwd->next = relay->fib;
relay->fib = fwd;
}
void
ccnl_client_TX(char node, char *name, int seqn, int nonce)
{
char tmp[512];
struct ccnl_prefix_s *p;
struct ccnl_buf_s *buf;
struct ccnl_relay_s *relay = char2relay(node);
DEBUGMSG(TRACE, "ccnl_client_tx node=%c: request %s #%d\n",
node, name, seqn);
if (!relay)
return;
sprintf(tmp, "%s/.%d", name, seqn);
// p = ccnl_path_to_prefix(tmp);
// p->suite = suite;
p = ccnl_URItoPrefix(tmp, theSuite, NULL, NULL);
DEBUGMSG(TRACE, " create interest for %s\n", ccnl_prefix_to_path(p));
buf = ccnl_mkSimpleInterest(p, &nonce);
free_prefix(p);
// inject it into the relay:
if (buf) {
ccnl_core_RX(relay, -1, buf->data, buf->datalen, 0, 0);
ccnl_free(buf);
}
}
void
ccnl_simu_add2cache(char node, const char *name, int seqn, void *data, int len)
{
struct ccnl_relay_s *relay;
char tmp[100];
struct ccnl_prefix_s *p;
struct ccnl_buf_s *buf;
int dataoffset;
struct ccnl_content_s *c;
relay = char2relay(node);
if (!relay)
return;
sprintf(tmp, "%s/.%d", name, seqn);
DEBUGMSG(VERBOSE, " %s\n", tmp);
// p = ccnl_path_to_prefix(tmp);
// p->suite = suite;
p = ccnl_URItoPrefix(tmp, theSuite, NULL, NULL);
DEBUGMSG(VERBOSE, " %s\n", ccnl_prefix_to_path(p));
buf = ccnl_mkSimpleContent(p, data, len, &dataoffset);
c = ccnl_content_new(relay, theSuite, &buf, &p,
NULL, buf->data + dataoffset, len);
if (c)
ccnl_content_add2cache(relay, c);
return;
}
void
ccnl_simu_add2cache(char node, const char *name, int seqn, void *data, int len)
{
struct ccnl_relay_s *relay;
char tmp[100];
int dataoffset;
struct ccnl_content_s *c;
struct ccnl_pkt_s *pkt;
relay = char2relay(node);
if (!relay)
return;
sprintf(tmp, "%s/.%d", name, seqn);
DEBUGMSG(VERBOSE, " %s\n", tmp);
// p = ccnl_path_to_prefix(tmp);
// p->suite = suite;
pkt = ccnl_calloc(1, sizeof(*pkt));
pkt->pfx = ccnl_URItoPrefix(tmp, theSuite, NULL, NULL);
DEBUGMSG(VERBOSE, " %s\n", ccnl_prefix_to_path(pkt->pfx));
pkt->buf = ccnl_mkSimpleContent(pkt->pfx, data, len, &dataoffset);
pkt->content = pkt->buf->data + dataoffset;
pkt->contlen = len;
c = ccnl_content_new(relay, &pkt);
if (c)
ccnl_content_add2cache(relay, c);
return;
}
void
ccnl_simu_init_node(char node, const char *addr,
int max_cache_entries, int mtu)
{
struct ccnl_relay_s *relay = char2relay(node);
struct ccnl_if_s *i;
DEBUGMSG(TRACE, "ccnl_simu_init_node\n");
relay->id = relay - relays;
relay->max_cache_entries = node == 'C' ? -1 : max_cache_entries;
// add (fake) eth0 interface with index 0:
i = &relay->ifs[0];
i->addr.eth.sll_family = AF_PACKET;
memcpy(i->addr.eth.sll_addr, addr, ETH_ALEN);
if (mtu)
i->mtu = mtu;
else
i->mtu = 4096;
i->reflect = 1;
i->fwdalli = 1;
relay->ifcount++;
#ifdef USE_SCHEDULER
i->sched = ccnl_sched_pktrate_new(ccnl_interface_CTS, relay,
inter_packet_interval);
relay->defaultFaceScheduler = ccnl_simu_defaultFaceScheduler;
#endif
if (node == 'A' || node == 'B') {
struct ccnl_client_s *client = ccnl_calloc(1,
sizeof(struct ccnl_client_s));
client->lastseq = SIMU_NUMBER_OF_CHUNKS-1;
client->last_received = -1;
client->name = node == 'A' ?
"/ccnl/simu/movie1" : "/ccnl/simu/movie2";
relay->aux = (void *) client;
}
ccnl_set_timer(1000000, ccnl_ageing, relay, 0);
}
void
ccnl_simu_client_kick(char node, int ndx)
{
struct ccnl_relay_s *relay = char2relay(node);
struct ccnl_client_s *cl = relay->aux;
if (cl->nextseq > cl->lastseq)
return;
if (!cl->to_handlers[ndx]) {
cl->onthefly[ndx] = cl->nextseq;
cl->nextseq++;
cl->nonces[ndx] = random();
cl->to_handlers[ndx] = ccnl_set_timer(TIMEOUT, ccnl_simu_client_timeout,
relay, cl->to_handlers + ndx);
cl->threadcnt++;
// printf("number of threads: %d\n", cl->threadcnt);
ccnl_client_TX(node, cl->name, cl->onthefly[ndx], cl->nonces[ndx]);
}
}
int
ccnl_simu_init(int max_cache_entries)
{
static char dat[SIMU_CHUNK_SIZE];
static char init_was_visited;
int i;
if (init_was_visited)
return 0;
init_was_visited = 1;
DEBUGMSG(TRACE, "ccnl_simu_init\n");
#ifdef USE_SCHEDULER
// initialize the scheduling subsystem
ccnl_sched_init();
#endif
// define each node's eth address:
ccnl_simu_init_node('A', "\x00\x00\x00\x00\x00\x0a",
max_cache_entries);
ccnl_simu_init_node('B', "\x00\x00\x00\x00\x00\x0b",
max_cache_entries);
ccnl_simu_init_node('C', "\x00\x00\x00\x00\x00\x0c",
max_cache_entries);
ccnl_simu_init_node('1', "\x00\x00\x00\x00\x00\x01",
max_cache_entries);
ccnl_simu_init_node('2', "\x00\x00\x00\x00\x00\x02",
max_cache_entries);
// install the system's forwarding pointers:
ccnl_simu_add_fwd('A', "/ccnl/simu", '2');
ccnl_simu_add_fwd('B', "/ccnl/simu", '2');
ccnl_simu_add_fwd('2', "/ccnl/simu", '1');
ccnl_simu_add_fwd('1', "/ccnl/simu", 'C');
/*
for (i = 0; i < 5; i++)
ccnl_dump(0, CCNL_RELAY, relays+i);
*/
// turn node 'C' into a repository for three movies
sprintf(dat, "%d", (int) sizeof(dat));
for (i = 0; i < SIMU_NUMBER_OF_CHUNKS; i++) {
ccnl_simu_add2cache('C', "/ccnl/simu/movie1", i, dat, sizeof(dat));
ccnl_simu_add2cache('C', "/ccnl/simu/movie2", i, dat, sizeof(dat));
ccnl_simu_add2cache('C', "/ccnl/simu/movie3", i, dat, sizeof(dat));
}
ccnl_set_timer(5000, ccnl_simu_ethernet, 0, 0);
// start clients:
ccnl_set_timer( 500000, ccnl_simu_client_start, char2relay('A'), 0);
ccnl_set_timer(1000000, ccnl_simu_client_start, char2relay('B'), 0);
phaseOne = 1;
printf("Press ENTER to start the simulation\n");
while (getchar() != '\n');
return 0;
}