/**
* Type of a function to call when we receive a message
* from the service.
*
* @param cls closure
* @param msg message received, NULL on timeout or fatal error
*/
static void
message_handler (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_NSE_Handle *h = cls;
const struct GNUNET_NSE_ClientMessage *client_msg;
if (msg == NULL)
{
/* Error, timeout, death */
GNUNET_CLIENT_disconnect (h->client);
h->client = NULL;
h->reconnect_task =
GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h);
return;
}
if ((ntohs (msg->size) != sizeof (struct GNUNET_NSE_ClientMessage)) ||
(ntohs (msg->type) != GNUNET_MESSAGE_TYPE_NSE_ESTIMATE))
{
GNUNET_break (0);
return;
}
client_msg = (const struct GNUNET_NSE_ClientMessage *) msg;
h->recv_cb (h->recv_cb_cls, GNUNET_TIME_absolute_ntoh (client_msg->timestamp),
GNUNET_ntoh_double (client_msg->size_estimate),
GNUNET_ntoh_double (client_msg->std_deviation));
GNUNET_CLIENT_receive (h->client, &message_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
}
/**
* Transmit START message to service.
*
* @param cls unused
* @param size number of bytes available in buf
* @param buf where to copy the message
* @return number of bytes copied to buf
*/
static size_t
send_start (void *cls, size_t size, void *buf)
{
struct GNUNET_NSE_Handle *h = cls;
struct GNUNET_MessageHeader *msg;
h->th = NULL;
if (buf == NULL)
{
/* Connect error... */
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Shutdown while trying to transmit `%s' request.\n", "START");
reschedule_connect (h);
return 0;
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting `%s' request.\n", "START");
GNUNET_assert (size >= sizeof (struct GNUNET_MessageHeader));
msg = (struct GNUNET_MessageHeader *) buf;
msg->size = htons (sizeof (struct GNUNET_MessageHeader));
msg->type = htons (GNUNET_MESSAGE_TYPE_NSE_START);
GNUNET_CLIENT_receive (h->client, &message_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
return sizeof (struct GNUNET_MessageHeader);
}
/**
* Send the 'TEST' message to the service. If successful, prepare to
* receive the reply.
*
* @param cls the `struct GNUNET_CLIENT_TestHandle` of the test
* @param size number of bytes available in @a buf
* @param buf where to write the message
* @return number of bytes written to @a buf
*/
static size_t
write_test (void *cls, size_t size, void *buf)
{
struct GNUNET_CLIENT_TestHandle *th = cls;
struct GNUNET_MessageHeader *msg;
th->th = NULL;
if (size < sizeof (struct GNUNET_MessageHeader))
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Failed to transmit TEST request.\n");
service_test_report (th, GNUNET_NO);
return 0; /* client disconnected */
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Transmitting `%s' request.\n",
"TEST");
msg = (struct GNUNET_MessageHeader *) buf;
msg->type = htons (GNUNET_MESSAGE_TYPE_TEST);
msg->size = htons (sizeof (struct GNUNET_MessageHeader));
GNUNET_CLIENT_receive (th->client,
&confirm_handler, th,
GNUNET_TIME_absolute_get_remaining
(th->test_deadline));
return sizeof (struct GNUNET_MessageHeader);
}
/**
* Handler for ARM 'termination' reply (failure to receive).
*
* @param cls our "struct GNUNET_ARM_Handle"
* @param msg expected to be NULL
*/
static void
arm_termination_handler (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_ARM_Handle *h = cls;
struct ARMControlMessage *cm;
if (NULL != msg)
{
GNUNET_break (0);
GNUNET_CLIENT_receive (h->client, &arm_termination_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
return;
}
cm = h->thm;
h->thm = NULL;
h->currently_down = GNUNET_YES;
GNUNET_CLIENT_disconnect (h->client);
h->client = NULL;
if (NULL != cm->result_cont)
cm->result_cont (cm->cont_cls,
GNUNET_ARM_REQUEST_SENT_OK,
(const char *) &cm->msg[1],
GNUNET_ARM_RESULT_STOPPED);
GNUNET_free (cm->msg);
GNUNET_free (cm);
}
/**
* If possible, write a shutdown message to the target
* buffer and destroy the client connection.
*
* @param cls the "struct GNUNET_CLIENT_Connection" to destroy
* @param size number of bytes available in buf
* @param buf NULL on error, otherwise target buffer
* @return number of bytes written to buf
*/
static size_t
write_shutdown (void *cls, size_t size, void *buf)
{
struct GNUNET_MessageHeader *msg;
struct ShutdownContext *shutdown_ctx = cls;
if (size < sizeof (struct GNUNET_MessageHeader))
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
_("Failed to transmit shutdown request to client.\n"));
shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_SYSERR);
GNUNET_CLIENT_disconnect (shutdown_ctx->sock);
GNUNET_free (shutdown_ctx);
return 0; /* client disconnected */
}
GNUNET_CLIENT_receive (shutdown_ctx->sock, &service_shutdown_handler,
shutdown_ctx, GNUNET_TIME_UNIT_FOREVER_REL);
shutdown_ctx->cancel_task =
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_absolute_get_remaining
(shutdown_ctx->timeout),
&service_shutdown_cancel, shutdown_ctx);
msg = (struct GNUNET_MessageHeader *) buf;
msg->type = htons (GNUNET_MESSAGE_TYPE_ARM_SHUTDOWN);
msg->size = htons (sizeof (struct GNUNET_MessageHeader));
return sizeof (struct GNUNET_MessageHeader);
}
/**
* We've transmitted the iteration request. Now get ready to process
* the results (or handle transmission error).
*
* @param cls the 'struct GNUNET_PEERINFO_IteratorContext'
* @param emsg error message, NULL if transmission worked
*/
static void
iterator_start_receive (void *cls, const char *emsg)
{
struct GNUNET_PEERINFO_IteratorContext *ic = cls;
struct GNUNET_PEERINFO_Handle *h = ic->h;
GNUNET_PEERINFO_Processor cb;
void *cb_cls;
ic->ac = NULL;
if (NULL != emsg)
{
cb = ic->callback;
cb_cls = ic->callback_cls;
GNUNET_PEERINFO_iterate_cancel (ic);
reconnect (h);
if (NULL != cb)
cb (cb_cls, NULL, NULL, emsg);
return;
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Waiting for response from `%s' service.\n",
"PEERINFO");
ic->in_receive = GNUNET_YES;
if (GNUNET_NO == h->in_receive)
{
h->in_receive = GNUNET_YES;
GNUNET_CLIENT_receive (h->client, &peerinfo_handler, h,
GNUNET_TIME_absolute_get_remaining (ic->timeout));
}
}
/**
* Function called to notify a client about the socket
* begin ready to queue the message. @a buf will be
* NULL and @a size zero if the socket was closed for
* writing in the meantime.
*
* @param cls closure of type `struct TransmitGetResponseContext *`
* @param size number of bytes available in @a buf
* @param buf where the callee should write the message
* @return number of bytes written to @a buf
*/
static size_t
transmit_for_response (void *cls,
size_t size,
void *buf)
{
struct TransmitGetResponseContext *tc = cls;
uint16_t msize;
tc->client->tag = NULL;
msize = ntohs (tc->hdr->size);
if (NULL == buf)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Could not submit request, not expecting to receive a response.\n");
if (NULL != tc->rn)
tc->rn (tc->rn_cls, NULL);
GNUNET_free (tc);
return 0;
}
GNUNET_assert (size >= msize);
memcpy (buf, tc->hdr, msize);
GNUNET_CLIENT_receive (tc->client,
tc->rn,
tc->rn_cls,
GNUNET_TIME_absolute_get_remaining (tc->timeout));
GNUNET_free (tc);
return msize;
}
/**
* We can now transmit a message to NAMESTORE. Do it.
*
* @param cls the 'struct GNUNET_NAMESTORE_Handle'
* @param size number of bytes we can transmit
* @param buf where to copy the messages
* @return number of bytes copied into buf
*/
static size_t
transmit_message_to_namestore (void *cls, size_t size, void *buf)
{
struct GNUNET_NAMESTORE_Handle *h = cls;
struct PendingMessage *p;
size_t ret;
char *cbuf;
h->th = NULL;
if ((size == 0) || (buf == NULL))
{
force_reconnect (h);
return 0;
}
ret = 0;
cbuf = buf;
while ((NULL != (p = h->pending_head)) && (p->size <= size))
{
memcpy (&cbuf[ret], &p[1], p->size);
ret += p->size;
size -= p->size;
GNUNET_CONTAINER_DLL_remove (h->pending_head, h->pending_tail, p);
if (GNUNET_YES == p->is_init)
GNUNET_CLIENT_receive (h->client, &process_namestore_message, h,
GNUNET_TIME_UNIT_FOREVER_REL);
GNUNET_free (p);
}
do_transmit (h);
return ret;
}
/**
* Callback called by notify_transmit_ready; sends DNS replies
* to the DNS service.
*
* @param cls the struct GNUNET_DNS_Handle
* @param size number of bytes available in buf
* @param buf where to copy the message for transmission
* @return number of bytes copied to buf
*/
static size_t
send_response (void *cls, size_t size, void *buf)
{
struct GNUNET_DNS_Handle *dh = cls;
struct ReplyQueueEntry *qe;
size_t len;
dh->dns_transmit_handle = NULL;
if (NULL == buf)
{
disconnect (dh);
dh->reconnect_task =
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
&reconnect, dh);
return 0;
}
qe = dh->rq_head;
if (NULL == qe)
return 0;
len = ntohs (qe->msg->size);
if (len > size)
{
dh->dns_transmit_handle =
GNUNET_CLIENT_notify_transmit_ready (dh->dns_connection,
len,
GNUNET_TIME_UNIT_FOREVER_REL,
GNUNET_NO,
&send_response, dh);
return 0;
}
memcpy (buf, qe->msg, len);
GNUNET_CONTAINER_DLL_remove (dh->rq_head,
dh->rq_tail,
qe);
GNUNET_free (qe);
if (GNUNET_NO == dh->in_receive)
{
dh->in_receive = GNUNET_YES;
GNUNET_CLIENT_receive (dh->dns_connection,
&request_handler, dh,
GNUNET_TIME_UNIT_FOREVER_REL);
}
if (NULL != (qe = dh->rq_head))
{
dh->dns_transmit_handle =
GNUNET_CLIENT_notify_transmit_ready (dh->dns_connection,
ntohs (qe->msg->size),
GNUNET_TIME_UNIT_FOREVER_REL,
GNUNET_NO,
&send_response, dh);
}
return len;
}
/**
* Transmit a join request to the chat service.
*
* @param cls closure, pointer to the 'struct GNUNET_CHAT_Room'
* @param size number of bytes available in buf
* @param buf where the callee should write the message
* @return number of bytes written to buf
*/
static size_t
transmit_join_request (void *cls, size_t size, void *buf)
{
struct GNUNET_CHAT_Room *chat_room = cls;
struct JoinRequestMessage *join_msg;
char *room;
char *meta;
size_t room_len;
ssize_t meta_len;
size_t size_of_join;
if (NULL == buf)
{
#if DEBUG_CHAT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Could not transmit join request, retrying...\n");
#endif
rejoin_room (chat_room);
return 0;
}
#if DEBUG_CHAT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Transmitting join request to the service\n");
#endif
room_len = strlen (chat_room->room_name);
meta_len =
GNUNET_CONTAINER_meta_data_get_serialized_size (chat_room->member_info);
size_of_join = sizeof (struct JoinRequestMessage) + meta_len + room_len;
GNUNET_assert (size >= size_of_join);
join_msg = buf;
join_msg->header.size = htons (size);
join_msg->header.type = htons (GNUNET_MESSAGE_TYPE_CHAT_JOIN_REQUEST);
join_msg->msg_options = htonl (chat_room->msg_options);
join_msg->room_name_len = htons (room_len);
join_msg->reserved = htons (0);
join_msg->reserved2 = htonl (0);
GNUNET_CRYPTO_rsa_key_get_public (chat_room->my_private_key,
&join_msg->public_key);
room = (char *) &join_msg[1];
memcpy (room, chat_room->room_name, room_len);
meta = &room[room_len];
if (GNUNET_SYSERR ==
GNUNET_CONTAINER_meta_data_serialize (chat_room->member_info, &meta,
meta_len,
GNUNET_CONTAINER_META_DATA_SERIALIZE_FULL))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Could not serialize metadata\n"));
return 0;
}
GNUNET_CLIENT_receive (chat_room->client, &receive_results, chat_room,
GNUNET_TIME_UNIT_FOREVER_REL);
return size_of_join;
}
/**
* Transmit the next pending message, called by notify_transmit_ready
*
* @param cls the DHT handle
* @param size number of bytes available in @a buf for transmission
* @param buf where to copy messages for the service
* @return number of bytes written to @a buf
*/
static size_t
transmit_pending (void *cls,
size_t size,
void *buf)
{
struct GNUNET_DHT_Handle *handle = cls;
struct PendingMessage *head;
size_t tsize;
handle->th = NULL;
if (NULL == buf)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Transmission to DHT service failed! Reconnecting!\n");
do_disconnect (handle);
return 0;
}
if (NULL == (head = handle->pending_head))
return 0;
tsize = ntohs (head->msg->size);
if (size < tsize)
{
process_pending_messages (handle);
return 0;
}
memcpy (buf, head->msg, tsize);
GNUNET_CONTAINER_DLL_remove (handle->pending_head, handle->pending_tail,
head);
head->in_pending_queue = GNUNET_NO;
if (NULL != head->cont)
{
head->cont (head->cont_cls, NULL);
head->cont = NULL;
head->cont_cls = NULL;
}
if (GNUNET_YES == head->free_on_send)
GNUNET_free (head);
process_pending_messages (handle);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Forwarded request of %u bytes to DHT service\n", (unsigned int) tsize);
if (GNUNET_NO == handle->in_receive)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Starting to process replies from DHT\n");
handle->in_receive = GNUNET_YES;
GNUNET_CLIENT_receive (handle->client, &service_message_handler, handle,
GNUNET_TIME_UNIT_FOREVER_REL);
}
return tsize;
}
/**
* Function called on each response from the FS
* service with information about indexed files.
*
* @param cls closure (of type "struct GNUNET_FS_GetIndexedContext*")
* @param msg message with indexing information
*/
static void
handle_index_info (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_FS_GetIndexedContext *gic = cls;
const struct IndexInfoMessage *iim;
uint16_t msize;
const char *filename;
if (NULL == msg)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
_
("Failed to receive response for `%s' request from `%s' service.\n"),
"GET_INDEXED", "fs");
(void) gic->iterator (gic->iterator_cls, NULL, NULL);
GNUNET_FS_get_indexed_files_cancel (gic);
return;
}
if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_END)
{
/* normal end-of-list */
(void) gic->iterator (gic->iterator_cls, NULL, NULL);
GNUNET_FS_get_indexed_files_cancel (gic);
return;
}
msize = ntohs (msg->size);
iim = (const struct IndexInfoMessage *) msg;
filename = (const char *) &iim[1];
if ((ntohs (msg->type) != GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_ENTRY) ||
(msize <= sizeof (struct IndexInfoMessage)) ||
(filename[msize - sizeof (struct IndexInfoMessage) - 1] != '\0'))
{
/* bogus reply */
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
_
("Failed to receive valid response for `%s' request from `%s' service.\n"),
"GET_INDEXED", "fs");
(void) gic->iterator (gic->iterator_cls, NULL, NULL);
GNUNET_FS_get_indexed_files_cancel (gic);
return;
}
if (GNUNET_OK != gic->iterator (gic->iterator_cls, filename, &iim->file_id))
{
GNUNET_FS_get_indexed_files_cancel (gic);
return;
}
/* get more */
GNUNET_CLIENT_receive (gic->client, &handle_index_info, gic,
GNUNET_CONSTANTS_SERVICE_TIMEOUT);
}
/**
* Callback function for data received from the network. Note that
* both "available" and "errCode" would be 0 if the read simply timed out.
*
* @param cls closure
* @param buf pointer to received data
* @param available number of bytes availabe in "buf",
* possibly 0 (on errors)
* @param addr address of the sender
* @param addrlen size of addr
* @param errCode value of errno (on errors receiving)
*/
static void
receive_helper (void *cls, const void *buf, size_t available,
const struct sockaddr *addr, socklen_t addrlen, int errCode)
{
struct GNUNET_CLIENT_Connection *client = cls;
struct GNUNET_TIME_Relative remaining;
GNUNET_CLIENT_MessageHandler receive_handler;
void *receive_handler_cls;
GNUNET_assert (GNUNET_NO == client->msg_complete);
GNUNET_assert (GNUNET_YES == client->in_receive);
client->in_receive = GNUNET_NO;
if ((0 == available) || (NULL == client->connection) || (0 != errCode))
{
/* signal timeout! */
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Timeout in receive_helper, available %u, client->connection %s, errCode `%s'\n",
(unsigned int) available, NULL == client->connection ? "NULL" : "non-NULL",
STRERROR (errCode));
if (NULL != (receive_handler = client->receiver_handler))
{
receive_handler_cls = client->receiver_handler_cls;
client->receiver_handler = NULL;
receive_handler (receive_handler_cls, NULL);
}
return;
}
/* FIXME: optimize for common fast case where buf contains the
* entire message and we need no copying... */
/* slow path: append to array */
if (client->received_size < client->received_pos + available)
GNUNET_array_grow (client->received_buf, client->received_size,
client->received_pos + available);
memcpy (&client->received_buf[client->received_pos], buf, available);
client->received_pos += available;
check_complete (client);
/* check for timeout */
remaining = GNUNET_TIME_absolute_get_remaining (client->receive_timeout);
if (0 == remaining.rel_value)
{
/* signal timeout! */
if (NULL != client->receiver_handler)
client->receiver_handler (client->receiver_handler_cls, NULL);
return;
}
/* back to receive -- either for more data or to call callback! */
GNUNET_CLIENT_receive (client, client->receiver_handler,
client->receiver_handler_cls, remaining);
}
/**
* We got a response or disconnect after asking regex
* to do the search. Handle it.
*
* @param cls the `struct GNUNET_REGEX_Search` to handle reply for
* @param msg NULL on disconnect, otherwise presumably a response
*/
static void
handle_search_response (void *cls,
const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_REGEX_Search *s = cls;
const struct ResultMessage *result;
uint16_t size;
uint16_t gpl;
uint16_t ppl;
if (NULL == msg)
{
GNUNET_CLIENT_disconnect (s->client);
s->client = GNUNET_CLIENT_connect ("regex", s->cfg);
retry_search (s);
return;
}
size = ntohs (msg->size);
if ( (GNUNET_MESSAGE_TYPE_REGEX_RESULT == ntohs (msg->type)) &&
(size >= sizeof (struct ResultMessage)) )
{
result = (const struct ResultMessage *) msg;
gpl = ntohs (result->get_path_length);
ppl = ntohs (result->put_path_length);
if (size == (sizeof (struct ResultMessage) +
(gpl + ppl) * sizeof (struct GNUNET_PeerIdentity)))
{
const struct GNUNET_PeerIdentity *pid;
GNUNET_CLIENT_receive (s->client,
&handle_search_response, s,
GNUNET_TIME_UNIT_FOREVER_REL);
pid = &result->id;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Got regex result %s\n",
GNUNET_i2s (pid));
s->callback (s->callback_cls,
pid,
&pid[1], gpl,
&pid[1 + gpl], ppl);
return;
}
}
GNUNET_break (0);
GNUNET_CLIENT_disconnect (s->client);
s->client = GNUNET_CLIENT_connect ("regex", s->cfg);
retry_search (s);
}
/**
* Handler for notification messages received from ARM.
*
* @param cls our "struct GNUNET_ARM_MonitorHandle"
* @param msg the message received from the arm service
*/
static void
monitor_notify_handler (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_ARM_MonitorHandle *h = cls;
uint16_t msize;
const struct GNUNET_ARM_StatusMessage *res;
enum GNUNET_ARM_ServiceStatus status;
if (NULL == msg)
{
LOG (GNUNET_ERROR_TYPE_INFO,
_("Monitoring client was disconnected from arm service, trying to reconnect.\n"));
reconnect_arm_monitor_later (h);
return;
}
msize = ntohs (msg->size);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Processing message of type %u and size %u from arm service\n",
ntohs (msg->type), msize);
switch (ntohs (msg->type))
{
case GNUNET_MESSAGE_TYPE_ARM_STATUS:
if (msize <= sizeof (struct GNUNET_ARM_StatusMessage))
{
GNUNET_break (0);
reconnect_arm_monitor_later (h);
return;
}
if (NULL != h->init_timeout_task_id)
{
GNUNET_SCHEDULER_cancel (h->init_timeout_task_id);
h->init_timeout_task_id = NULL;
}
res = (const struct GNUNET_ARM_StatusMessage *) msg;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received response from ARM for service `%s': %u\n",
(const char *) &res[1], ntohs (msg->type));
status = (enum GNUNET_ARM_ServiceStatus) ntohl (res->status);
GNUNET_CLIENT_receive (h->monitor, &monitor_notify_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
if (NULL != h->service_status)
h->service_status (h->cls, (const char *) &res[1], status);
break;
default:
reconnect_arm_monitor_later (h);
return;
}
}
/**
* This receives packets from the DNS service and calls the application to
* handle it.
*
* @param cls the struct GNUNET_DNS_Handle
* @param msg message from the service (request)
*/
static void
request_handler (void *cls,
const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_DNS_Handle *dh = cls;
const struct GNUNET_DNS_Request *req;
struct GNUNET_DNS_RequestHandle *rh;
size_t payload_length;
/* the service disconnected, reconnect after short wait */
if (msg == NULL)
{
disconnect (dh);
dh->reconnect_task =
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
&reconnect, dh);
return;
}
if ( (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_DNS_CLIENT_REQUEST) ||
(ntohs (msg->size) < sizeof (struct GNUNET_DNS_Request)) )
{
/* the service did something strange, reconnect immediately */
GNUNET_break (0);
disconnect (dh);
dh->reconnect_task = GNUNET_SCHEDULER_add_now (&reconnect, dh);
return;
}
req = (const struct GNUNET_DNS_Request *) msg;
GNUNET_break (ntohl (req->reserved) == 0);
payload_length = ntohs (req->header.size) - sizeof (struct GNUNET_DNS_Request);
GNUNET_CLIENT_receive (dh->dns_connection,
&request_handler, dh,
GNUNET_TIME_UNIT_FOREVER_REL);
/* finally, pass request to callback for answers */
rh = GNUNET_new (struct GNUNET_DNS_RequestHandle);
rh->dh =dh;
rh->request_id = req->request_id;
rh->generation = dh->generation;
dh->pending_requests++;
dh->rh (dh->rh_cls,
rh,
payload_length,
(const char*) &req[1]);
}
/**
* Task executed once we are done transmitting the INIT message.
* Starts our 'receive' loop.
*
* @param cls the 'struct GNUNET_CORE_Handle'
* @param success were we successful
*/
static void
init_done_task (void *cls, int success)
{
struct GNUNET_CORE_Handle *h = cls;
if (GNUNET_SYSERR == success)
return; /* shutdown */
if (GNUNET_NO == success)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Failed to exchange INIT with core, retrying\n");
if (h->reconnect_task == GNUNET_SCHEDULER_NO_TASK)
reconnect_later (h);
return;
}
GNUNET_CLIENT_receive (h->client, &main_notify_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
}
/**
* Transmit next message to service.
*
* @param cls The 'struct GNUNET_PSYCSTORE_Handle'.
* @param size Number of bytes available in buf.
* @param buf Where to copy the message.
* @return Number of bytes copied to buf.
*/
static size_t
send_next_message (void *cls, size_t size, void *buf)
{
struct GNUNET_PSYCSTORE_Handle *h = cls;
struct GNUNET_PSYCSTORE_OperationHandle *op = h->transmit_head;
size_t ret;
h->th = NULL;
if (NULL == op)
return 0;
ret = ntohs (op->msg->size);
if (ret > size)
{
reschedule_connect (h);
return 0;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Sending message of type %d to PSYCstore service. ID: %" PRIu64 "\n",
ntohs (op->msg->type), op->op_id);
memcpy (buf, op->msg, ret);
GNUNET_CONTAINER_DLL_remove (h->transmit_head, h->transmit_tail, op);
if (NULL == op->res_cb && NULL == op->data_cb)
{
GNUNET_free (op);
}
else
{
GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, op);
}
if (NULL != h->transmit_head)
transmit_next (h);
if (GNUNET_NO == h->in_receive)
{
h->in_receive = GNUNET_YES;
GNUNET_CLIENT_receive (h->client, &message_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
}
return ret;
}
static void
task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct sockaddr_in sa;
struct sockaddr *sap[2];
socklen_t slens[2];
/* test that ill-configured client fails instantly */
GNUNET_assert (NULL == GNUNET_CLIENT_connect ("invalid-service", cfg));
/* test IPC between client and server */
sap[0] = (struct sockaddr *) &sa;
slens[0] = sizeof (sa);
sap[1] = NULL;
slens[1] = 0;
memset (&sa, 0, sizeof (sa));
#if HAVE_SOCKADDR_IN_SIN_LEN
sa.sin_len = sizeof (sa);
#endif
sa.sin_family = AF_INET;
sa.sin_port = htons (PORT);
server =
GNUNET_SERVER_create (NULL, NULL, sap, slens,
GNUNET_TIME_relative_multiply
(GNUNET_TIME_UNIT_MILLISECONDS, 10000), GNUNET_NO);
GNUNET_assert (server != NULL);
handlers[0].callback_cls = cls;
handlers[1].callback_cls = cls;
GNUNET_SERVER_add_handlers (server, handlers);
client = GNUNET_CLIENT_connect (MYNAME, cfg);
GNUNET_assert (client != NULL);
GNUNET_assert (NULL !=
GNUNET_CLIENT_notify_transmit_ready (client,
sizeof (struct
GNUNET_MessageHeader),
GNUNET_TIME_relative_multiply
(GNUNET_TIME_UNIT_SECONDS,5),
GNUNET_NO, &make_msg,
NULL));
GNUNET_CLIENT_receive (client, &recv_bounce, cls,
GNUNET_TIME_relative_multiply
(GNUNET_TIME_UNIT_MILLISECONDS, 10000));
}
/**
* Transmit the next pending message, called by notify_transmit_ready
*
* @param cls the closure
* @param size size of pending data
* @param buf buffer with pending data
* @return size data transmitted
*/
static size_t
transmit_pending (void *cls, size_t size, void *buf)
{
struct GNUNET_GNS_Handle *handle = cls;
char *cbuf = buf;
struct PendingMessage *p;
size_t tsize;
handle->th = NULL;
if ((0 == size) || (NULL == buf))
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Transmission to GNS service failed!\n");
force_reconnect (handle);
return 0;
}
if (NULL == (p = handle->pending_head))
return 0;
tsize = 0;
while ((NULL != (p = handle->pending_head)) && (p->size <= size))
{
memcpy (&cbuf[tsize], &p[1], p->size);
tsize += p->size;
size -= p->size;
p->transmitted = GNUNET_YES;
GNUNET_CONTAINER_DLL_remove (handle->pending_head,
handle->pending_tail,
p);
if (GNUNET_YES != handle->in_receive)
{
GNUNET_CLIENT_receive (handle->client, &process_message, handle,
GNUNET_TIME_UNIT_FOREVER_REL);
handle->in_receive = GNUNET_YES;
}
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Sending %u bytes\n",
(unsigned int) tsize);
process_pending_messages (handle);
return tsize;
}
/**
* Type of a function to call when we receive a message
* from the service.
*
* @param cls closure
* @param msg message received, NULL on timeout or fatal error
*/
static void
handle_client_message (void *cls,
const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_MQ_Handle *mq = cls;
struct ClientConnectionState *state;
state = mq->impl_state;
if (NULL == msg)
{
GNUNET_MQ_inject_error (mq, GNUNET_MQ_ERROR_READ);
return;
}
GNUNET_CLIENT_receive (state->connection, handle_client_message, mq,
GNUNET_TIME_UNIT_FOREVER_REL);
GNUNET_MQ_inject_message (mq, msg);
}
/**
* Transmit the monitoring initialization message to the arm service.
*
* @param cls closure with the 'struct GNUNET_ARM_MonitorHandle'
* @param size number of bytes available in buf
* @param buf where the callee should write the message
* @return number of bytes written to buf
*/
static size_t
transmit_monitoring_init_message (void *cls, size_t size, void *buf)
{
struct GNUNET_ARM_MonitorHandle *h = cls;
struct GNUNET_MessageHeader *msg;
uint16_t msize;
GNUNET_assert (NULL == h->reconnect_task);
GNUNET_assert (NULL == h->init_timeout_task_id);
h->cth = NULL;
if (NULL == buf)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Transmission failed, initiating reconnect\n");
reconnect_arm_monitor_later (h);
return 0;
}
msize = sizeof (struct GNUNET_MessageHeader);
if (size < msize)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Request is too big (%u < %u), not sending it\n", size, msize);
h->cth = GNUNET_CLIENT_notify_transmit_ready (h->monitor, msize,
GNUNET_TIME_UNIT_FOREVER_REL, GNUNET_NO,
transmit_monitoring_init_message, h);
return 0;
}
msg = buf;
msg->size = htons (msize);
msg->type = htons (GNUNET_MESSAGE_TYPE_ARM_MONITOR);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Transmitting ARM monitoring init message with %u bytes to arm.\n",
(unsigned int) msize);
h->init_timeout_task_id = GNUNET_SCHEDULER_add_delayed (
INIT_TIMEOUT, init_timeout_task, h);
GNUNET_CLIENT_receive (h->monitor, &monitor_notify_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
return msize;
}
/**
* Transmit request from queue to datastore service.
*
* @param cls the 'struct GNUNET_DATASTORE_Handle'
* @param size number of bytes that can be copied to buf
* @param buf where to copy the drop message
* @return number of bytes written to buf
*/
static size_t
transmit_request (void *cls, size_t size, void *buf)
{
struct GNUNET_DATASTORE_Handle *h = cls;
struct GNUNET_DATASTORE_QueueEntry *qe;
size_t msize;
h->th = NULL;
if (NULL == (qe = h->queue_head))
return 0; /* no entry in queue */
if (buf == NULL)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Failed to transmit request to DATASTORE.\n");
GNUNET_STATISTICS_update (h->stats,
gettext_noop ("# transmission request failures"),
1, GNUNET_NO);
do_disconnect (h);
return 0;
}
if (size < (msize = qe->message_size))
{
process_queue (h);
return 0;
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting %u byte request to DATASTORE\n",
msize);
memcpy (buf, &qe[1], msize);
qe->was_transmitted = GNUNET_YES;
GNUNET_SCHEDULER_cancel (qe->task);
qe->task = GNUNET_SCHEDULER_NO_TASK;
GNUNET_assert (GNUNET_NO == h->in_receive);
h->in_receive = GNUNET_YES;
GNUNET_CLIENT_receive (h->client, &receive_cb, h,
GNUNET_TIME_absolute_get_remaining (qe->timeout));
#if INSANE_STATISTICS
GNUNET_STATISTICS_update (h->stats,
gettext_noop ("# bytes sent to datastore"), 1,
GNUNET_NO);
#endif
return msize;
}
static size_t
transmit_initial_message (void *cls, size_t size, void *buf)
{
struct GNUNET_MessageHeader msg;
GNUNET_assert (ok == 1);
ok = 2;
GNUNET_assert (size >= sizeof (struct GNUNET_MessageHeader));
msg.type = htons (MY_TYPE);
msg.size = htons (sizeof (struct GNUNET_MessageHeader));
memcpy (buf, &msg, sizeof (struct GNUNET_MessageHeader));
GNUNET_assert (NULL !=
GNUNET_CLIENT_notify_transmit_ready (cc,
sizeof (struct
GNUNET_MessageHeader),
TIMEOUT, GNUNET_YES,
&transmit_second_message,
NULL));
GNUNET_CLIENT_receive (cc, &first_reply_handler, NULL, TIMEOUT);
return sizeof (struct GNUNET_MessageHeader);
}
/**
* Transmit next message to service.
*
* @param cls the `struct GNUNET_IDENTITY_Handle`.
* @param size number of bytes available in @a buf
* @param buf where to copy the message
* @return number of bytes copied to buf
*/
static size_t
send_next_message (void *cls,
size_t size,
void *buf)
{
struct GNUNET_IDENTITY_Handle *h = cls;
struct GNUNET_IDENTITY_Operation *op = h->op_head;
size_t ret;
h->th = NULL;
if (NULL == op)
return 0;
ret = ntohs (op->msg->size);
if (ret > size)
{
reschedule_connect (h);
return 0;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Sending message of type %d to identity service\n",
ntohs (op->msg->type));
memcpy (buf, op->msg, ret);
if ( (NULL == op->cont) &&
(NULL == op->cb) )
{
GNUNET_CONTAINER_DLL_remove (h->op_head,
h->op_tail,
op);
GNUNET_free (op);
transmit_next (h);
}
if (GNUNET_NO == h->in_receive)
{
h->in_receive = GNUNET_YES;
GNUNET_CLIENT_receive (h->client,
&message_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
}
return ret;
}
/**
* Handler receiving response to service shutdown requests.
* First call with NULL: service misbehaving, or something.
* First call with GNUNET_MESSAGE_TYPE_ARM_SHUTDOWN:
* - service will shutdown
* Second call with NULL:
* - service has now really shut down.
*
* @param cls closure
* @param msg NULL, indicating socket closure.
*/
static void
service_shutdown_handler (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct ShutdownContext *shutdown_ctx = cls;
if (msg == NULL)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Service shutdown complete.\n");
if (shutdown_ctx->cont != NULL)
shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_NO);
GNUNET_SCHEDULER_cancel (shutdown_ctx->cancel_task);
GNUNET_CLIENT_disconnect (shutdown_ctx->sock);
GNUNET_free (shutdown_ctx);
return;
}
GNUNET_assert (ntohs (msg->size) ==
sizeof (struct GNUNET_MessageHeader));
switch (ntohs (msg->type))
{
case GNUNET_MESSAGE_TYPE_ARM_SHUTDOWN:
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Received confirmation for service shutdown.\n");
shutdown_ctx->confirmed = GNUNET_YES;
GNUNET_CLIENT_receive (shutdown_ctx->sock,
&service_shutdown_handler, shutdown_ctx,
GNUNET_TIME_UNIT_FOREVER_REL);
break;
default: /* Fall through */
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Service shutdown refused!\n");
if (shutdown_ctx->cont != NULL)
shutdown_ctx->cont (shutdown_ctx->cont_cls, GNUNET_YES);
GNUNET_SCHEDULER_cancel (shutdown_ctx->cancel_task);
GNUNET_CLIENT_disconnect (shutdown_ctx->sock);
GNUNET_free (shutdown_ctx);
break;
}
}
/**
* Send the 'TEST' message to the service. If successful, prepare to
* receive the reply.
*
* @param cls the 'struct GNUNET_CLIENT_Connection' of the connection to test
* @param size number of bytes available in buf
* @param buf where to write the message
* @return number of bytes written to buf
*/
static size_t
write_test (void *cls, size_t size, void *buf)
{
struct GNUNET_CLIENT_Connection *client = cls;
struct GNUNET_MessageHeader *msg;
if (size < sizeof (struct GNUNET_MessageHeader))
{
LOG (GNUNET_ERROR_TYPE_DEBUG, _("Failure to transmit TEST request.\n"));
service_test_error (client->test_cb, client->test_cb_cls);
GNUNET_CLIENT_disconnect (client);
return 0; /* client disconnected */
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting `%s' request.\n", "TEST");
msg = (struct GNUNET_MessageHeader *) buf;
msg->type = htons (GNUNET_MESSAGE_TYPE_TEST);
msg->size = htons (sizeof (struct GNUNET_MessageHeader));
GNUNET_CLIENT_receive (client, &confirm_handler, client,
GNUNET_TIME_absolute_get_remaining
(client->test_deadline));
return sizeof (struct GNUNET_MessageHeader);
}
/**
* Listen for incoming messages on this chat room. Also, support servers going
* away/coming back (i.e. rejoin chat room to keep server state up to date).
*
* @param cls closure, pointer to the 'struct GNUNET_CHAT_Room'
* @param msg message received, NULL on timeout or fatal error
*/
static void
receive_results (void *cls, const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_CHAT_Room *chat_room = cls;
#if DEBUG_CHAT
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got a message from the service\n");
#endif
if (0 != (GNUNET_SCHEDULER_REASON_SHUTDOWN & GNUNET_SCHEDULER_get_reason ()))
return;
if (NULL == msg)
{
GNUNET_break (0);
rejoin_room (chat_room);
return;
}
process_result (chat_room, msg);
if (NULL == chat_room->client)
return; /* fatal error */
/* continue receiving */
GNUNET_CLIENT_receive (chat_room->client, &receive_results, chat_room,
GNUNET_TIME_UNIT_FOREVER_REL);
}
/**
* Transmit a queued message to the session's client.
*
* @param cls consensus session
* @param size number of bytes available in @a buf
* @param buf where the callee should write the message
* @return number of bytes written to buf
*/
static size_t
connection_client_transmit_queued (void *cls,
size_t size,
void *buf)
{
struct GNUNET_MQ_Handle *mq = cls;
const struct GNUNET_MessageHeader *msg;
struct ClientConnectionState *state = mq->impl_state;
size_t msg_size;
GNUNET_assert (NULL != mq);
msg = GNUNET_MQ_impl_current (mq);
if (NULL == buf)
{
GNUNET_MQ_inject_error (mq, GNUNET_MQ_ERROR_READ);
return 0;
}
if ( (GNUNET_YES == state->receive_requested) &&
(GNUNET_NO == state->receive_active) )
{
state->receive_active = GNUNET_YES;
GNUNET_CLIENT_receive (state->connection, handle_client_message, mq,
GNUNET_TIME_UNIT_FOREVER_REL);
}
msg_size = ntohs (msg->size);
GNUNET_assert (size >= msg_size);
memcpy (buf, msg, msg_size);
state->th = NULL;
GNUNET_MQ_impl_send_continue (mq);
return msg_size;
}
/**
* Handler for notification messages received from the core.
*
* @param cls our `struct GNUNET_CORE_Handle`
* @param msg the message received from the core service
*/
static void
main_notify_handler (void *cls,
const struct GNUNET_MessageHeader *msg)
{
struct GNUNET_CORE_Handle *h = cls;
const struct InitReplyMessage *m;
const struct ConnectNotifyMessage *cnm;
const struct DisconnectNotifyMessage *dnm;
const struct NotifyTrafficMessage *ntm;
const struct GNUNET_MessageHeader *em;
const struct SendMessageReady *smr;
const struct GNUNET_CORE_MessageHandler *mh;
GNUNET_CORE_StartupCallback init;
struct PeerRecord *pr;
struct GNUNET_CORE_TransmitHandle *th;
unsigned int hpos;
int trigger;
uint16_t msize;
uint16_t et;
if (NULL == msg)
{
LOG (GNUNET_ERROR_TYPE_INFO,
_("Client was disconnected from core service, trying to reconnect.\n"));
reconnect_later (h);
return;
}
msize = ntohs (msg->size);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Processing message of type %u and size %u from core service\n",
ntohs (msg->type), msize);
switch (ntohs (msg->type))
{
case GNUNET_MESSAGE_TYPE_CORE_INIT_REPLY:
if (ntohs (msg->size) != sizeof (struct InitReplyMessage))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
m = (const struct InitReplyMessage *) msg;
GNUNET_break (0 == ntohl (m->reserved));
/* start our message processing loop */
if (GNUNET_YES == h->currently_down)
{
h->currently_down = GNUNET_NO;
trigger_next_request (h, GNUNET_NO);
}
h->retry_backoff = GNUNET_TIME_UNIT_MILLISECONDS;
h->me = m->my_identity;
if (NULL != (init = h->init))
{
/* mark so we don't call init on reconnect */
h->init = NULL;
LOG (GNUNET_ERROR_TYPE_DEBUG, "Connected to core service of peer `%s'.\n",
GNUNET_i2s (&h->me));
init (h->cls, &h->me);
}
else
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Successfully reconnected to core service.\n");
}
/* fake 'connect to self' */
pr = GNUNET_CONTAINER_multipeermap_get (h->peers, &h->me);
GNUNET_assert (NULL == pr);
pr = GNUNET_new (struct PeerRecord);
pr->peer = h->me;
pr->ch = h;
GNUNET_assert (GNUNET_YES ==
GNUNET_CONTAINER_multipeermap_put (h->peers,
&h->me, pr,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
if (NULL != h->connects)
h->connects (h->cls, &h->me);
break;
case GNUNET_MESSAGE_TYPE_CORE_NOTIFY_CONNECT:
if (msize < sizeof (struct ConnectNotifyMessage))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
cnm = (const struct ConnectNotifyMessage *) msg;
if (msize !=
sizeof (struct ConnectNotifyMessage))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received notification about connection from `%s'.\n",
GNUNET_i2s (&cnm->peer));
if (0 == memcmp (&h->me, &cnm->peer, sizeof (struct GNUNET_PeerIdentity)))
{
/* connect to self!? */
GNUNET_break (0);
return;
}
pr = GNUNET_CONTAINER_multipeermap_get (h->peers, &cnm->peer);
if (NULL != pr)
{
GNUNET_break (0);
reconnect_later (h);
return;
}
pr = GNUNET_new (struct PeerRecord);
pr->peer = cnm->peer;
pr->ch = h;
GNUNET_assert (GNUNET_YES ==
GNUNET_CONTAINER_multipeermap_put (h->peers,
&cnm->peer, pr,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
if (NULL != h->connects)
h->connects (h->cls, &cnm->peer);
break;
case GNUNET_MESSAGE_TYPE_CORE_NOTIFY_DISCONNECT:
if (msize != sizeof (struct DisconnectNotifyMessage))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
dnm = (const struct DisconnectNotifyMessage *) msg;
if (0 == memcmp (&h->me, &dnm->peer, sizeof (struct GNUNET_PeerIdentity)))
{
/* connection to self!? */
GNUNET_break (0);
return;
}
GNUNET_break (0 == ntohl (dnm->reserved));
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received notification about disconnect from `%s'.\n",
GNUNET_i2s (&dnm->peer));
pr = GNUNET_CONTAINER_multipeermap_get (h->peers, &dnm->peer);
if (NULL == pr)
{
GNUNET_break (0);
reconnect_later (h);
return;
}
trigger = ((pr->prev != NULL) || (pr->next != NULL) ||
(h->ready_peer_head == pr));
disconnect_and_free_peer_entry (h, &dnm->peer, pr);
if (trigger)
trigger_next_request (h, GNUNET_NO);
break;
case GNUNET_MESSAGE_TYPE_CORE_NOTIFY_INBOUND:
if (msize < sizeof (struct NotifyTrafficMessage))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
ntm = (const struct NotifyTrafficMessage *) msg;
if ((msize <
sizeof (struct NotifyTrafficMessage) +
sizeof (struct GNUNET_MessageHeader)) )
{
GNUNET_break (0);
reconnect_later (h);
return;
}
em = (const struct GNUNET_MessageHeader *) &ntm[1];
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received message of type %u and size %u from peer `%4s'\n",
ntohs (em->type), ntohs (em->size), GNUNET_i2s (&ntm->peer));
if ((GNUNET_NO == h->inbound_hdr_only) &&
(msize !=
ntohs (em->size) + sizeof (struct NotifyTrafficMessage)))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
et = ntohs (em->type);
for (hpos = 0; hpos < h->hcnt; hpos++)
{
mh = &h->handlers[hpos];
if (mh->type != et)
continue;
if ((mh->expected_size != ntohs (em->size)) && (mh->expected_size != 0))
{
LOG (GNUNET_ERROR_TYPE_ERROR,
"Unexpected message size %u for message of type %u from peer `%4s'\n",
htons (em->size), mh->type, GNUNET_i2s (&ntm->peer));
GNUNET_break_op (0);
continue;
}
pr = GNUNET_CONTAINER_multipeermap_get (h->peers, &ntm->peer);
if (NULL == pr)
{
GNUNET_break (0);
reconnect_later (h);
return;
}
if (GNUNET_OK !=
h->handlers[hpos].callback (h->cls, &ntm->peer, em))
{
/* error in processing, do not process other messages! */
break;
}
}
if (NULL != h->inbound_notify)
h->inbound_notify (h->cls, &ntm->peer, em);
break;
case GNUNET_MESSAGE_TYPE_CORE_NOTIFY_OUTBOUND:
if (msize < sizeof (struct NotifyTrafficMessage))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
ntm = (const struct NotifyTrafficMessage *) msg;
if ((msize <
sizeof (struct NotifyTrafficMessage) +
sizeof (struct GNUNET_MessageHeader)) )
{
GNUNET_break (0);
reconnect_later (h);
return;
}
em = (const struct GNUNET_MessageHeader *) &ntm[1];
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received notification about transmission to `%s'.\n",
GNUNET_i2s (&ntm->peer));
if ((GNUNET_NO == h->outbound_hdr_only) &&
(msize !=
ntohs (em->size) + sizeof (struct NotifyTrafficMessage)))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
if (NULL == h->outbound_notify)
{
GNUNET_break (0);
break;
}
h->outbound_notify (h->cls, &ntm->peer, em);
break;
case GNUNET_MESSAGE_TYPE_CORE_SEND_READY:
if (msize != sizeof (struct SendMessageReady))
{
GNUNET_break (0);
reconnect_later (h);
return;
}
smr = (const struct SendMessageReady *) msg;
pr = GNUNET_CONTAINER_multipeermap_get (h->peers, &smr->peer);
if (NULL == pr)
{
GNUNET_break (0);
reconnect_later (h);
return;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received notification about transmission readiness to `%s'.\n",
GNUNET_i2s (&smr->peer));
if (NULL == pr->th.peer)
{
/* request must have been cancelled between the original request
* and the response from core, ignore core's readiness */
break;
}
th = &pr->th;
if (ntohs (smr->smr_id) != th->smr_id)
{
/* READY message is for expired or cancelled message,
* ignore! (we should have already sent another request) */
break;
}
if ((NULL != pr->prev) || (NULL != pr->next) || (h->ready_peer_head == pr))
{
/* we should not already be on the ready list... */
GNUNET_break (0);
reconnect_later (h);
return;
}
GNUNET_CONTAINER_DLL_insert (h->ready_peer_head, h->ready_peer_tail, pr);
trigger_next_request (h, GNUNET_NO);
break;
default:
reconnect_later (h);
return;
}
GNUNET_CLIENT_receive (h->client, &main_notify_handler, h,
GNUNET_TIME_UNIT_FOREVER_REL);
}