/**
* Notification of FS that a search probe has made progress.
* This function is used INSTEAD of the client's event handler
* for downloads where the #GNUNET_FS_DOWNLOAD_IS_PROBE flag is set.
*
* @param cls closure, always NULL (!), actual closure
* is in the client-context of the info struct
* @param info details about the event, specifying the event type
* and various bits about the event
* @return client-context (for the next progress call
* for this operation; should be set to NULL for
* SUSPEND and STOPPED events). The value returned
* will be passed to future callbacks in the respective
* field in the `struct GNUNET_FS_ProgressInfo`.
*/
void *
GNUNET_FS_search_probe_progress_ (void *cls,
const struct GNUNET_FS_ProgressInfo *info)
{
struct GNUNET_FS_SearchResult *sr = info->value.download.cctx;
struct GNUNET_TIME_Relative dur;
switch (info->status)
{
case GNUNET_FS_STATUS_DOWNLOAD_START:
/* ignore */
break;
case GNUNET_FS_STATUS_DOWNLOAD_RESUME:
/* probes should never be resumed */
GNUNET_assert (0);
break;
case GNUNET_FS_STATUS_DOWNLOAD_SUSPEND:
/* probes should never be suspended */
GNUNET_break (0);
break;
case GNUNET_FS_STATUS_DOWNLOAD_PROGRESS:
/* ignore */
break;
case GNUNET_FS_STATUS_DOWNLOAD_ERROR:
if (GNUNET_SCHEDULER_NO_TASK != sr->probe_cancel_task)
{
GNUNET_SCHEDULER_cancel (sr->probe_cancel_task);
sr->probe_cancel_task = GNUNET_SCHEDULER_NO_TASK;
}
sr->probe_cancel_task =
GNUNET_SCHEDULER_add_delayed (sr->remaining_probe_time,
&probe_failure_handler, sr);
break;
case GNUNET_FS_STATUS_DOWNLOAD_COMPLETED:
if (GNUNET_SCHEDULER_NO_TASK != sr->probe_cancel_task)
{
GNUNET_SCHEDULER_cancel (sr->probe_cancel_task);
sr->probe_cancel_task = GNUNET_SCHEDULER_NO_TASK;
}
sr->probe_cancel_task =
GNUNET_SCHEDULER_add_now (&probe_success_handler, sr);
break;
case GNUNET_FS_STATUS_DOWNLOAD_STOPPED:
if (GNUNET_SCHEDULER_NO_TASK != sr->probe_cancel_task)
{
GNUNET_SCHEDULER_cancel (sr->probe_cancel_task);
sr->probe_cancel_task = GNUNET_SCHEDULER_NO_TASK;
}
sr = NULL;
break;
case GNUNET_FS_STATUS_DOWNLOAD_ACTIVE:
if (GNUNET_SCHEDULER_NO_TASK == sr->probe_cancel_task)
{
sr->probe_active_time = GNUNET_TIME_absolute_get ();
sr->probe_cancel_task =
GNUNET_SCHEDULER_add_delayed (sr->remaining_probe_time,
&probe_failure_handler, sr);
}
break;
case GNUNET_FS_STATUS_DOWNLOAD_INACTIVE:
if (GNUNET_SCHEDULER_NO_TASK != sr->probe_cancel_task)
{
GNUNET_SCHEDULER_cancel (sr->probe_cancel_task);
sr->probe_cancel_task = GNUNET_SCHEDULER_NO_TASK;
}
dur = GNUNET_TIME_absolute_get_duration (sr->probe_active_time);
sr->remaining_probe_time =
GNUNET_TIME_relative_subtract (sr->remaining_probe_time, dur);
if (0 == sr->remaining_probe_time.rel_value_us)
sr->probe_cancel_task =
GNUNET_SCHEDULER_add_now (&probe_failure_handler, sr);
GNUNET_FS_search_result_sync_ (sr);
break;
default:
GNUNET_break (0);
return NULL;
}
return sr;
}
static struct GNUNET_TIME_Relative
get_delay (struct TrafficGenerator *tg)
{
struct GNUNET_TIME_Relative delay;
struct GNUNET_TIME_Relative time_delta;
long long int cur_rate;
long long int delta_rate;
delay.rel_value_us = 0;
/* Calculate the current transmission rate based on the type of traffic */
switch (tg->type) {
case GNUNET_ATS_TEST_TG_CONSTANT:
if (UINT32_MAX == tg->base_rate)
return GNUNET_TIME_UNIT_ZERO;
cur_rate = tg->base_rate;
break;
case GNUNET_ATS_TEST_TG_LINEAR:
time_delta = GNUNET_TIME_absolute_get_duration(tg->time_start);
/* Calculate point of time in the current period */
time_delta.rel_value_us = time_delta.rel_value_us % tg->duration_period.rel_value_us;
delta_rate = ((double) time_delta.rel_value_us / tg->duration_period.rel_value_us) *
(tg->max_rate - tg->base_rate);
if ((tg->max_rate < tg->base_rate) && ((tg->max_rate - tg->base_rate) > tg->base_rate))
{
/* This will cause an underflow */
GNUNET_break (0);
}
cur_rate = tg->base_rate + delta_rate;
break;
case GNUNET_ATS_TEST_TG_RANDOM:
cur_rate = tg->base_rate + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
tg->max_rate - tg->base_rate);
break;
case GNUNET_ATS_TEST_TG_SINUS:
time_delta = GNUNET_TIME_absolute_get_duration(tg->time_start);
/* Calculate point of time in the current period */
time_delta.rel_value_us = time_delta.rel_value_us % tg->duration_period.rel_value_us;
if ((tg->max_rate - tg->base_rate) > tg->base_rate)
{
/* This will cause an underflow for second half of sinus period,
* will be detected in general when experiments are loaded */
GNUNET_break (0);
}
delta_rate = (tg->max_rate - tg->base_rate) *
sin ( (2 * M_PI) / ((double) tg->duration_period.rel_value_us) * time_delta.rel_value_us);
cur_rate = tg->base_rate + delta_rate;
break;
default:
return delay;
break;
}
if (cur_rate < 0)
{
cur_rate = 1;
}
/* Calculate the delay for the next message based on the current delay */
delay.rel_value_us = GNUNET_TIME_UNIT_SECONDS.rel_value_us * TEST_MESSAGE_SIZE / cur_rate;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Current rate is %u, calculated delay is %u \n",
cur_rate, delay.rel_value_us);
return delay;
}
static void *
progress_cb (void *cls, const struct GNUNET_FS_ProgressInfo *event)
{
switch (event->status)
{
case GNUNET_FS_STATUS_PUBLISH_PROGRESS:
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Publish is progressing (%llu/%llu at level %u off %llu)...\n",
(unsigned long long) event->value.publish.completed,
(unsigned long long) event->value.publish.size,
event->value.publish.specifics.progress.depth,
(unsigned long long) event->value.publish.specifics.
progress.offset);
break;
case GNUNET_FS_STATUS_PUBLISH_PROGRESS_DIRECTORY:
break;
case GNUNET_FS_STATUS_PUBLISH_COMPLETED:
printf ("Publishing complete, %llu kbps.\n",
(unsigned long long) (FILESIZE * 1000000LL /
(1 +
GNUNET_TIME_absolute_get_duration
(start).rel_value_us) / 1024));
start = GNUNET_TIME_absolute_get ();
unindex = GNUNET_FS_unindex_start (fs, fn, "unindex");
GNUNET_assert (unindex != NULL);
break;
case GNUNET_FS_STATUS_UNINDEX_COMPLETED:
printf ("Unindex complete, %llu kbps.\n",
(unsigned long long) (FILESIZE * 1000000LL /
(1 +
GNUNET_TIME_absolute_get_duration
(start).rel_value_us) / 1024));
GNUNET_SCHEDULER_add_now (&abort_unindex_task, NULL);
break;
case GNUNET_FS_STATUS_UNINDEX_PROGRESS:
consider_restart (event->status);
GNUNET_assert (unindex == event->value.unindex.uc);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Unindex is progressing (%llu/%llu at level %u off %llu)...\n",
(unsigned long long) event->value.unindex.completed,
(unsigned long long) event->value.unindex.size,
event->value.unindex.specifics.progress.depth,
(unsigned long long) event->value.unindex.specifics.
progress.offset);
break;
case GNUNET_FS_STATUS_PUBLISH_SUSPEND:
if (event->value.publish.pc == publish)
publish = NULL;
break;
case GNUNET_FS_STATUS_PUBLISH_RESUME:
if (NULL == publish)
{
publish = event->value.publish.pc;
return "publish-context";
}
break;
case GNUNET_FS_STATUS_UNINDEX_SUSPEND:
GNUNET_assert (event->value.unindex.uc == unindex);
unindex = NULL;
break;
case GNUNET_FS_STATUS_UNINDEX_RESUME:
GNUNET_assert (NULL == unindex);
unindex = event->value.unindex.uc;
return "unindex";
case GNUNET_FS_STATUS_PUBLISH_ERROR:
FPRINTF (stderr, "Error publishing file: %s\n",
event->value.publish.specifics.error.message);
GNUNET_break (0);
GNUNET_SCHEDULER_add_now (&abort_publish_task, NULL);
break;
case GNUNET_FS_STATUS_UNINDEX_ERROR:
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Error unindexing file: %s\n",
event->value.unindex.specifics.error.message);
GNUNET_SCHEDULER_add_now (&abort_unindex_task, NULL);
break;
case GNUNET_FS_STATUS_PUBLISH_START:
GNUNET_assert (0 == strcmp ("publish-context", event->value.publish.cctx));
GNUNET_assert (NULL == event->value.publish.pctx);
GNUNET_assert (FILESIZE == event->value.publish.size);
GNUNET_assert (0 == event->value.publish.completed);
GNUNET_assert (1 == event->value.publish.anonymity);
break;
case GNUNET_FS_STATUS_PUBLISH_STOPPED:
GNUNET_assert (publish == event->value.publish.pc);
GNUNET_assert (FILESIZE == event->value.publish.size);
GNUNET_assert (1 == event->value.publish.anonymity);
GNUNET_FS_stop (fs);
fs = NULL;
break;
case GNUNET_FS_STATUS_UNINDEX_START:
consider_restart (event->status);
GNUNET_assert (unindex == NULL);
GNUNET_assert (0 == strcmp ("unindex", event->value.unindex.cctx));
GNUNET_assert (0 == strcmp (fn, event->value.unindex.filename));
GNUNET_assert (FILESIZE == event->value.unindex.size);
GNUNET_assert (0 == event->value.unindex.completed);
break;
case GNUNET_FS_STATUS_UNINDEX_STOPPED:
GNUNET_assert (unindex == event->value.unindex.uc);
GNUNET_SCHEDULER_add_now (&abort_publish_task, NULL);
break;
default:
printf ("Unexpected event: %d\n", event->status);
break;
}
return NULL;
}
/**
* Function called when the transport service is ready to receive a
* message for the respective peer
*
* @param cls neighbour to use message from
* @param size number of bytes we can transmit
* @param buf where to copy the message
* @return number of bytes transmitted
*/
static size_t
transmit_ready (void *cls,
size_t size,
void *buf)
{
struct Neighbour *n = cls;
struct NeighbourMessageEntry *m;
size_t ret;
char *cbuf;
struct GNUNET_TIME_Relative delay;
struct GNUNET_TIME_Relative overdue;
n->th = NULL;
m = n->message_head;
if (NULL == m)
{
GNUNET_break (0);
return 0;
}
GNUNET_CONTAINER_DLL_remove (n->message_head,
n->message_tail,
m);
n->queue_size--;
if (NULL == buf)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Transmission of message of type %u and size %u failed\n",
(unsigned int)
ntohs (((struct GNUNET_MessageHeader *) &m[1])->type),
(unsigned int) m->size);
GNUNET_free (m);
process_queue (n);
return 0;
}
delay = GNUNET_TIME_absolute_get_duration (m->submission_time);
overdue = GNUNET_TIME_absolute_get_duration (m->deadline);
cbuf = buf;
GNUNET_assert (size >= m->size);
memcpy (cbuf,
&m[1],
m->size);
ret = m->size;
if (overdue.rel_value_us > GNUNET_CONSTANTS_LATENCY_WARN.rel_value_us)
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Copied overdue message of type %u and size %u into transport buffer for `%s' with delay of %s\n",
(unsigned int)
ntohs (((struct GNUNET_MessageHeader *) &m[1])->type),
(unsigned int) ret,
GNUNET_i2s (&n->peer),
GNUNET_STRINGS_relative_time_to_string (delay,
GNUNET_YES));
else
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Copied message of type %u and size %u into transport buffer for `%s' with delay of %s\n",
(unsigned int)
ntohs (((struct GNUNET_MessageHeader *) &m[1])->type),
(unsigned int) ret,
GNUNET_i2s (&n->peer),
GNUNET_STRINGS_relative_time_to_string (delay,
GNUNET_YES));
GNUNET_free (m);
n->has_excess_bandwidth = GNUNET_NO;
process_queue (n);
GNUNET_STATISTICS_update (GSC_stats,
gettext_noop
("# encrypted bytes given to transport"), ret,
GNUNET_NO);
return ret;
}
/**
* We've received a PONG. Check if it matches a pending PING and
* mark the respective address as confirmed.
*
* @param sender peer sending the PONG
* @param hdr the PONG
*/
void
GST_validation_handle_pong (const struct GNUNET_PeerIdentity *sender,
const struct GNUNET_MessageHeader *hdr)
{
const struct TransportPongMessage *pong;
struct ValidationEntry *ve;
const char *tname;
const char *addr;
size_t addrlen;
size_t slen;
size_t size;
struct GNUNET_HELLO_Message *hello;
struct GNUNET_HELLO_Address address;
if (ntohs (hdr->size) < sizeof (struct TransportPongMessage))
{
GNUNET_break_op (0);
return;
}
GNUNET_STATISTICS_update (GST_stats,
gettext_noop ("# PONG messages received"), 1,
GNUNET_NO);
pong = (const struct TransportPongMessage *) hdr;
tname = (const char *) &pong[1];
size = ntohs (hdr->size) - sizeof (struct TransportPongMessage);
addr = memchr (tname, '\0', size);
if (NULL == addr)
{
GNUNET_break_op (0);
return;
}
addr++;
slen = strlen (tname) + 1;
addrlen = size - slen;
address.peer = *sender;
address.address = addr;
address.address_length = addrlen;
address.transport_name = tname;
ve = find_validation_entry (NULL, &address);
if ((NULL == ve) || (ve->expecting_pong == GNUNET_NO))
{
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
("# PONGs dropped, no matching pending validation"),
1, GNUNET_NO);
return;
}
/* now check that PONG is well-formed */
if (0 != memcmp (&ve->pid, sender, sizeof (struct GNUNET_PeerIdentity)))
{
GNUNET_break_op (0);
return;
}
if (GNUNET_OK !=
GNUNET_CRYPTO_rsa_verify (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_PONG_OWN,
&pong->purpose, &pong->signature,
&ve->public_key))
{
GNUNET_break_op (0);
return;
}
if (GNUNET_TIME_absolute_get_remaining
(GNUNET_TIME_absolute_ntoh (pong->expiration)).rel_value == 0)
{
GNUNET_STATISTICS_update (GST_stats,
gettext_noop
("# PONGs dropped, signature expired"), 1,
GNUNET_NO);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Address validated for peer `%s' with plugin `%s': `%s'\n",
GNUNET_i2s (sender), tname, GST_plugins_a2s (ve->address));
/* validity achieved, remember it! */
ve->expecting_pong = GNUNET_NO;
ve->valid_until = GNUNET_TIME_relative_to_absolute (HELLO_ADDRESS_EXPIRATION);
ve->latency = GNUNET_TIME_absolute_get_duration (ve->send_time);
{
struct GNUNET_ATS_Information ats;
ats.type = htonl (GNUNET_ATS_QUALITY_NET_DELAY);
ats.value = htonl ((uint32_t) ve->latency.rel_value);
GNUNET_ATS_address_update (GST_ats, ve->address, NULL, &ats, 1);
}
/* build HELLO to store in PEERINFO */
ve->copied = GNUNET_NO;
hello = GNUNET_HELLO_create (&ve->public_key, &add_valid_peer_address, ve);
GNUNET_PEERINFO_add_peer (GST_peerinfo, hello, NULL, NULL);
GNUNET_free (hello);
}
static int
testDirectory (unsigned int i)
{
struct GNUNET_FS_DirectoryBuilder *db;
char *data;
size_t dlen;
struct GNUNET_FS_Uri **uris;
struct GNUNET_CONTAINER_MetaData **mds;
struct GNUNET_CONTAINER_MetaData *meta;
struct PCLS cls;
char *emsg;
int p;
int q;
char uri[512];
char txt[128];
int ret = 0;
struct GNUNET_TIME_Absolute start;
const char *s;
cls.max = i;
uris = GNUNET_malloc (sizeof (struct GNUNET_FS_Uri *) * i);
mds = GNUNET_malloc (sizeof (struct GNUNET_CONTAINER_MetaData *) * i);
meta = GNUNET_CONTAINER_meta_data_create ();
GNUNET_CONTAINER_meta_data_insert (meta, "<test>", EXTRACTOR_METATYPE_TITLE,
EXTRACTOR_METAFORMAT_UTF8, "text/plain",
"A title", strlen ("A title") + 1);
GNUNET_CONTAINER_meta_data_insert (meta, "<test>",
EXTRACTOR_METATYPE_AUTHOR_NAME,
EXTRACTOR_METAFORMAT_UTF8, "text/plain",
"An author", strlen ("An author") + 1);
for (p = 0; p < i; p++)
{
mds[p] = GNUNET_CONTAINER_meta_data_create ();
for (q = 0; q <= p; q++)
{
GNUNET_snprintf (txt, sizeof (txt), "%u -- %u\n", p, q);
GNUNET_CONTAINER_meta_data_insert (mds[p], "<test>",
#if HAVE_EXTRACTOR_H && HAVE_LIBEXTRACTOR
q % EXTRACTOR_metatype_get_max (),
#else
q % 128,
#endif
EXTRACTOR_METAFORMAT_UTF8,
"text/plain", txt, strlen (txt) + 1);
}
GNUNET_snprintf (uri, sizeof (uri),
"gnunet://fs/chk/C282GG70GKK41O4551011DO413KFBVTVMQG1OG30I0K4045N0G41HAPB82G680A02JRVVFO8URVRU2F159011DO41000000022RG820.RNVVVVOOLCLK065B5D04HTNVNSIB2AI022RG8200HSLK1CO1000ATQ98824DMA2032LIMG50CG0K057NVUVG200000H000004400000.%u",
p);
emsg = NULL;
uris[p] = GNUNET_FS_uri_parse (uri, &emsg);
if (uris[p] == NULL)
{
GNUNET_CONTAINER_meta_data_destroy (mds[p]);
while (--p > 0)
{
GNUNET_CONTAINER_meta_data_destroy (mds[p]);
GNUNET_FS_uri_destroy (uris[p]);
}
GNUNET_free (mds);
GNUNET_free (uris);
GNUNET_free (emsg);
GNUNET_CONTAINER_meta_data_destroy (meta);
ABORT (); /* error in testcase */
}
GNUNET_assert (emsg == NULL);
}
start = GNUNET_TIME_absolute_get ();
db = GNUNET_FS_directory_builder_create (meta);
for (p = 0; p < i; p++)
GNUNET_FS_directory_builder_add (db, uris[p], mds[p], NULL);
GNUNET_FS_directory_builder_finish (db, &dlen, (void **) &data);
s = GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration
(start),
GNUNET_YES);
FPRINTF (stdout,
"Creating directory with %u entires and total size %llu took %s\n",
i, (unsigned long long) dlen, s);
if (i < 100)
{
cls.pos = 0;
cls.uri = uris;
cls.md = mds;
GNUNET_FS_directory_list_contents (dlen, data, 0, &processor, &cls);
GNUNET_assert (cls.pos == i);
}
GNUNET_free (data);
GNUNET_CONTAINER_meta_data_destroy (meta);
for (p = 0; p < i; p++)
{
GNUNET_CONTAINER_meta_data_destroy (mds[p]);
GNUNET_FS_uri_destroy (uris[p]);
}
GNUNET_free (uris);
GNUNET_free (mds);
return ret;
}