void *ctx;
/**
- * Message Queue for the channel.
+ * Message Queue for the channel (which we are implementing).
*/
struct GNUNET_MQ_Handle *mq;
struct GNUNET_SCHEDULER_Task *mq_cont;
/**
- * Pending envelope in case we don't have an ACK from the service.
+ * Pending envelope with a message to be transmitted to the
+ * service as soon as we are allowed to. Should only be
+ * non-NULL if @e allow_send is 0.
*/
struct GNUNET_MQ_Envelope *pending_env;
enum GNUNET_CADET_ChannelOption options;
/**
- * Are we allowed to send to the service?
+ * How many messages are we allowed to send to the service right now?
*/
unsigned int allow_send;
*/
struct GNUNET_CADET_Port
{
+
+ /**
+ * Port "number"
+ */
+ struct GNUNET_HashCode id;
+
/**
* Handle to the CADET session this port belongs to.
*/
*/
void *cls;
- /**
- * Port "number"
- */
- struct GNUNET_HashCode id;
-
/**
* Handler for incoming channels on this port
*/
GNUNET_CADET_WindowSizeEventHandler window_changes;
/**
- * Handler called when an incoming channel is destroyed..
+ * Handler called when an incoming channel is destroyed.
*/
GNUNET_CADET_DisconnectEventHandler disconnects;
struct GNUNET_CADET_Handle *h = ch->cadet;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- " destroy_channel %X of %p\n",
+ "Destroying channel %X of %p\n",
ch->ccn,
h);
GNUNET_assert (GNUNET_YES ==
if (NULL != ch->disconnects)
ch->disconnects (ch->ctx,
ch);
+ GNUNET_MQ_destroy (ch->mq);
GNUNET_free (ch);
}
}
+/**
+ * Function called during #reconnect() to destroy
+ * all channels that are still open.
+ *
+ * @param cls the `struct GNUNET_CADET_Handle`
+ * @param cid chanenl ID
+ * @param value a `struct GNUNET_CADET_Channel` to destroy
+ * @return #GNUNET_OK (continue to iterate)
+ */
+static int
+destroy_channel_on_reconnect_cb (void *cls,
+ uint32_t cid,
+ void *value)
+{
+ /* struct GNUNET_CADET_Handle *handle = cls; */
+ struct GNUNET_CADET_Channel *ch = value;
+
+ destroy_channel (ch);
+ return GNUNET_OK;
+}
+
+
/**
* Reconnect to the service, retransmit all infomation to try to restore the
* original state.
static void
schedule_reconnect (struct GNUNET_CADET_Handle *h)
{
- if (NULL == h->reconnect_task)
- {
- h->reconnect_task = GNUNET_SCHEDULER_add_delayed (h->reconnect_time,
- &reconnect_cbk, h);
- h->reconnect_time = GNUNET_TIME_STD_BACKOFF (h->reconnect_time);
- }
+ if (NULL != h->reconnect_task)
+ return;
+ GNUNET_CONTAINER_multihashmap32_iterate (h->channels,
+ &destroy_channel_on_reconnect_cb,
+ h);
+ h->reconnect_task
+ = GNUNET_SCHEDULER_add_delayed (h->reconnect_time,
+ &reconnect_cbk,
+ h);
+ h->reconnect_time
+ = GNUNET_TIME_STD_BACKOFF (h->reconnect_time);
}
notify_window_size (struct GNUNET_CADET_Channel *ch)
{
if (NULL != ch->window_changes)
- ch->window_changes (ch->ctx, ch,
+ ch->window_changes (ch->ctx,
+ ch, /* FIXME: remove 'ch'? */
ch->allow_send);
}
struct GNUNET_CADET_Channel *ch = cls;
ch->mq_cont = NULL;
+ GNUNET_assert (NULL == ch->pending_env);
GNUNET_MQ_impl_send_continue (ch->mq);
}
+
+/**
+ * Transmit the next message from our queue.
+ *
+ * @param cls Closure (channel whose mq to activate).
+ */
+static void
+cadet_mq_send_now (void *cls)
+{
+ struct GNUNET_CADET_Channel *ch = cls;
+ struct GNUNET_MQ_Envelope *env = ch->pending_env;
+
+ ch->mq_cont = NULL;
+ if (0 == ch->allow_send)
+ {
+ /* how did we get here? */
+ GNUNET_break (0);
+ return;
+ }
+ if (NULL == env)
+ {
+ /* how did we get here? */
+ GNUNET_break (0);
+ return;
+ }
+ ch->allow_send--;
+ GNUNET_MQ_impl_send_in_flight (ch->mq);
+ ch->pending_env = NULL;
+ GNUNET_MQ_notify_sent (env,
+ &cadet_mq_send_continue,
+ ch);
+ GNUNET_MQ_send (ch->cadet->mq,
+ env);
+}
+
+
/**
* Implement sending functionality of a message queue for
* us sending messages to a peer.
struct GNUNET_MQ_Envelope *env;
struct GNUNET_CADET_LocalData *cadet_msg;
-
if (NULL == h->mq)
{
/* We're currently reconnecting, pretend this worked */
GNUNET_MQ_impl_send_continue (mq);
return;
}
-
env = GNUNET_MQ_msg_nested_mh (cadet_msg,
GNUNET_MESSAGE_TYPE_CADET_LOCAL_DATA,
msg);
cadet_msg->ccn = ch->ccn;
-
+ GNUNET_assert (NULL == ch->pending_env);
+ ch->pending_env = env;
if (0 < ch->allow_send)
- {
- /* Service has allowed this message, just send it and continue accepting */
- GNUNET_MQ_send (h->mq, env);
- ch->allow_send--;
- ch->mq_cont = GNUNET_SCHEDULER_add_now (&cadet_mq_send_continue, ch);
- // notify_window_size (ch); /* FIXME add "verbose" setting? */
- }
- else
- {
- /* Service has NOT allowed this message, queue it and wait for an ACK */
- GNUNET_assert (NULL == ch->pending_env);
- ch->pending_env = env;
- }
+ ch->mq_cont
+ = GNUNET_SCHEDULER_add_now (&cadet_mq_send_now,
+ ch);
}
{
struct GNUNET_CADET_Channel *ch = cls;
- GNUNET_break_op (0);
- if (GNUNET_MQ_ERROR_NO_MATCH)
+ GNUNET_break (0);
+ if (GNUNET_MQ_ERROR_NO_MATCH == error)
{
/* Got a message we did not understand, still try to continue! */
GNUNET_CADET_receive_done (ch);
}
+ else
+ {
+ schedule_reconnect (ch->cadet);
+ }
}
{
struct GNUNET_CADET_Channel *ch = impl_state;
- LOG (GNUNET_ERROR_TYPE_WARNING,
- "Cannot cancel mq message on channel %X of %p\n",
- ch->ccn.channel_of_client,
- ch->cadet);
- GNUNET_break (0);
+ GNUNET_assert (NULL != ch->pending_env);
+ GNUNET_MQ_discard (ch->pending_env);
+ ch->pending_env = NULL;
}
GNUNET_break (0);
return;
}
- port = find_port (h, port_number);
+ port = find_port (h,
+ port_number);
if (NULL == port)
{
/* We could have closed the port but the service didn't know about it yet
size = ntohs (message->header.size);
if (sizeof (*message) + sizeof (struct GNUNET_MessageHeader) > size)
{
- GNUNET_break_op (0);
+ GNUNET_break (0);
return GNUNET_SYSERR;
}
message->ccn);
if (NULL == ch)
{
- GNUNET_break_op (0);
+ GNUNET_break (0);
return GNUNET_SYSERR;
}
message->ccn);
if (NULL == ch)
{
- GNUNET_break_op (0);
+ GNUNET_break (0);
reconnect (h);
return;
}
ntohl (ch->ccn.channel_of_client),
ch->allow_send);
notify_window_size (ch);
+ return;
}
- else
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Got an ACK on mq channel %X, sending pending message!\n",
- ntohl (ch->ccn.channel_of_client));
- GNUNET_MQ_send (h->mq,
- ch->pending_env);
- ch->allow_send--;
- ch->pending_env = NULL;
- ch->mq_cont = GNUNET_SCHEDULER_add_now (&cadet_mq_send_continue,
- ch);
- }
+ if (NULL != ch->mq_cont)
+ return; /* already working on it! */
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Got an ACK on mq channel %X, sending pending message!\n",
+ ntohl (ch->ccn.channel_of_client));
+ ch->mq_cont
+ = GNUNET_SCHEDULER_add_now (&cadet_mq_send_now,
+ ch);
}
{
struct GNUNET_CADET_Handle *h = cls;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "MQ ERROR: %u\n", error);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "MQ ERROR: %u\n",
+ error);
GNUNET_MQ_destroy (h->mq);
h->mq = NULL;
reconnect (h);
}
-/**
- * Check that message received from CADET service is well-formed.
- *
- * @param cls the `struct GNUNET_CADET_Handle`
- * @param message the message we got
- * @return #GNUNET_OK if the message is well-formed,
- * #GNUNET_SYSERR otherwise
- */
-static int
-check_get_peers (void *cls,
- const struct GNUNET_CADET_LocalInfoPeer *message)
-{
- struct GNUNET_CADET_Handle *h = cls;
- uint16_t size;
-
- if (NULL == h->info_cb.peers_cb)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- " no handler for peesr monitor message!\n");
- return GNUNET_SYSERR;
- }
-
- size = ntohs (message->header.size);
- if (sizeof (struct GNUNET_CADET_LocalInfoPeer) > size)
- {
- h->info_cb.peers_cb (h->info_cls, NULL, -1, 0, 0);
- h->info_cb.peers_cb = NULL;
- h->info_cls = NULL;
- return GNUNET_SYSERR;
- }
-
- return GNUNET_OK;
-}
-
-
/**
* Process a local reply about info on all tunnels, pass info to the user.
*
const struct GNUNET_CADET_LocalInfoPeer *msg)
{
struct GNUNET_CADET_Handle *h = cls;
- h->info_cb.peers_cb (h->info_cls, &msg->destination,
+
+ if (NULL == h->info_cb.peers_cb)
+ return;
+ h->info_cb.peers_cb (h->info_cls,
+ &msg->destination,
(int) ntohs (msg->tunnel),
- (unsigned int ) ntohs (msg->paths),
+ (unsigned int) ntohs (msg->paths),
0);
}
check_get_peer (void *cls,
const struct GNUNET_CADET_LocalInfoPeer *message)
{
- struct GNUNET_CADET_Handle *h = cls;
- const size_t msize = sizeof (struct GNUNET_CADET_LocalInfoPeer);
- struct GNUNET_PeerIdentity *paths_array;
+ size_t msize = sizeof (struct GNUNET_CADET_LocalInfoPeer);
+ const struct GNUNET_PeerIdentity *paths_array;
size_t esize;
unsigned int epaths;
unsigned int paths;
unsigned int peers;
- if (NULL == h->info_cb.peer_cb)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- " no handler for peer monitor message!\n");
- goto clean_cls;
- }
-
- /* Verify message sanity */
esize = ntohs (message->header.size);
if (esize < msize)
{
- GNUNET_break_op (0);
- h->info_cb.peer_cb (h->info_cls, NULL, 0, 0, 0, NULL);
- goto clean_cls;
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
}
if (0 != ((esize - msize) % sizeof (struct GNUNET_PeerIdentity)))
{
- GNUNET_break_op (0);
- h->info_cb.peer_cb (h->info_cls, NULL, 0, 0, 0, NULL);
- goto clean_cls;
-
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
}
peers = (esize - msize) / sizeof (struct GNUNET_PeerIdentity);
- epaths = (unsigned int) ntohs (message->paths);
- paths_array = (struct GNUNET_PeerIdentity *) &message[1];
+ epaths = ntohs (message->paths);
+ paths_array = (const struct GNUNET_PeerIdentity *) &message[1];
paths = 0;
- for (int i = 0; i < peers; i++)
- {
- if (0 == memcmp (&paths_array[i], &message->destination,
+ for (unsigned int i = 0; i < peers; i++)
+ if (0 == memcmp (&paths_array[i],
+ &message->destination,
sizeof (struct GNUNET_PeerIdentity)))
- {
paths++;
- }
- }
if (paths != epaths)
{
- GNUNET_break_op (0);
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "p:%u, e: %u\n", paths, epaths);
- h->info_cb.peer_cb (h->info_cls, NULL, 0, 0, 0, NULL);
- goto clean_cls;
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
}
-
return GNUNET_OK;
-
-clean_cls:
- h->info_cb.peer_cb = NULL;
- h->info_cls = NULL;
- return GNUNET_SYSERR;
}
const struct GNUNET_CADET_LocalInfoPeer *message)
{
struct GNUNET_CADET_Handle *h = cls;
- struct GNUNET_PeerIdentity *paths_array;
+ const struct GNUNET_PeerIdentity *paths_array;
unsigned int paths;
unsigned int path_length;
int neighbor;
unsigned int peers;
- paths = (unsigned int) ntohs (message->paths);
- paths_array = (struct GNUNET_PeerIdentity *) &message[1];
+ if (NULL == h->info_cb.peer_cb)
+ return;
+ paths = ntohs (message->paths);
+ paths_array = (const struct GNUNET_PeerIdentity *) &message[1];
peers = (ntohs (message->header.size) - sizeof (*message))
/ sizeof (struct GNUNET_PeerIdentity);
path_length = 0;
neighbor = GNUNET_NO;
- for (int i = 0; i < peers; i++)
+ for (unsigned int i = 0; i < peers; i++)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " %s\n", GNUNET_i2s (&paths_array[i]));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ " %s\n",
+ GNUNET_i2s (&paths_array[i]));
path_length++;
if (0 == memcmp (&paths_array[i], &message->destination,
sizeof (struct GNUNET_PeerIdentity)))
}
/* Call Callback with tunnel info. */
- paths_array = (struct GNUNET_PeerIdentity *) &message[1];
+ paths_array = (const struct GNUNET_PeerIdentity *) &message[1];
h->info_cb.peer_cb (h->info_cls,
&message->destination,
(int) ntohs (message->tunnel),
}
-/**
- * Check that message received from CADET service is well-formed.
- *
- * @param cls the `struct GNUNET_CADET_Handle`
- * @param msg the message we got
- * @return #GNUNET_OK if the message is well-formed,
- * #GNUNET_SYSERR otherwise
- */
-static int
-check_get_tunnels (void *cls,
- const struct GNUNET_CADET_LocalInfoTunnel *msg)
-{
- struct GNUNET_CADET_Handle *h = cls;
- uint16_t size;
-
- if (NULL == h->info_cb.tunnels_cb)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- " no handler for tunnels monitor message!\n");
- return GNUNET_SYSERR;
- }
-
- size = ntohs (msg->header.size);
- if (sizeof (struct GNUNET_CADET_LocalInfoTunnel) > size)
- {
- h->info_cb.tunnels_cb (h->info_cls, NULL, 0, 0, 0, 0);
- h->info_cb.tunnels_cb = NULL;
- h->info_cls = NULL;
- return GNUNET_SYSERR;
- }
- return GNUNET_OK;
-}
-
-
/**
* Process a local reply about info on all tunnels, pass info to the user.
*
{
struct GNUNET_CADET_Handle *h = cls;
+ if (NULL == h->info_cb.tunnels_cb)
+ return;
h->info_cb.tunnels_cb (h->info_cls,
&msg->destination,
ntohl (msg->channels),
check_get_tunnel (void *cls,
const struct GNUNET_CADET_LocalInfoTunnel *msg)
{
- struct GNUNET_CADET_Handle *h = cls;
unsigned int ch_n;
unsigned int c_n;
size_t esize;
size_t msize;
- if (NULL == h->info_cb.tunnel_cb)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- " no handler for tunnel monitor message!\n");
- goto clean_cls;
- }
-
/* Verify message sanity */
msize = ntohs (msg->header.size);
esize = sizeof (struct GNUNET_CADET_LocalInfoTunnel);
if (esize > msize)
{
- GNUNET_break_op (0);
- h->info_cb.tunnel_cb (h->info_cls,
- NULL, 0, 0, NULL, NULL, 0, 0);
- goto clean_cls;
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
}
ch_n = ntohl (msg->channels);
c_n = ntohl (msg->connections);
(unsigned int) esize,
ch_n,
c_n);
- h->info_cb.tunnel_cb (h->info_cls,
- NULL, 0, 0, NULL, NULL, 0, 0);
- goto clean_cls;
+ return GNUNET_SYSERR;
}
-
return GNUNET_OK;
-
-clean_cls:
- h->info_cb.tunnel_cb = NULL;
- h->info_cls = NULL;
- return GNUNET_SYSERR;
}
const struct GNUNET_CADET_ConnectionTunnelIdentifier *conns;
const struct GNUNET_CADET_ChannelTunnelNumber *chns;
+ if (NULL == h->info_cb.tunnel_cb)
+ return;
+
ch_n = ntohl (msg->channels);
c_n = ntohl (msg->connections);
}
-/**
- * Function called during #reconnect() to destroy
- * all channels that are still open.
- *
- * @param cls the `struct GNUNET_CADET_Handle`
- * @param cid chanenl ID
- * @param value a `struct GNUNET_CADET_Channel` to destroy
- * @return #GNUNET_OK (continue to iterate)
- */
-static int
-destroy_channel_on_reconnect_cb (void *cls,
- uint32_t cid,
- void *value)
-{
- /* struct GNUNET_CADET_Handle *handle = cls; */
- struct GNUNET_CADET_Channel *ch = value;
-
- destroy_channel (ch);
- return GNUNET_OK;
-}
-
-
/**
* Reconnect to the service, retransmit all infomation to try to restore the
* original state.
GNUNET_MESSAGE_TYPE_CADET_LOCAL_ACK,
struct GNUNET_CADET_LocalAck,
h),
- GNUNET_MQ_hd_var_size (get_peers,
- GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEERS,
- struct GNUNET_CADET_LocalInfoPeer,
- h),
+ GNUNET_MQ_hd_fixed_size (get_peers,
+ GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEERS,
+ struct GNUNET_CADET_LocalInfoPeer,
+ h),
GNUNET_MQ_hd_var_size (get_peer,
GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEER,
struct GNUNET_CADET_LocalInfoPeer,
h),
- GNUNET_MQ_hd_var_size (get_tunnels,
- GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_TUNNELS,
- struct GNUNET_CADET_LocalInfoTunnel,
- h),
+ GNUNET_MQ_hd_fixed_size (get_tunnels,
+ GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_TUNNELS,
+ struct GNUNET_CADET_LocalInfoTunnel,
+ h),
GNUNET_MQ_hd_var_size (get_tunnel,
GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_TUNNEL,
struct GNUNET_CADET_LocalInfoTunnel,
GNUNET_MQ_handler_end ()
};
- GNUNET_CONTAINER_multihashmap32_iterate (h->channels,
- &destroy_channel_on_reconnect_cb,
- h);
- if (NULL != h->mq)
- {
- GNUNET_MQ_destroy (h->mq);
- h->mq = NULL;
- }
h->mq = GNUNET_CLIENT_connect (h->cfg,
"cadet",
handlers,
GNUNET_CONTAINER_multihashmap_remove (p->cadet->ports,
&p->id,
p));
+ GNUNET_free (p->handlers);
GNUNET_free (p);
}
struct GNUNET_CADET_LocalChannelDestroyMessage *msg;
struct GNUNET_MQ_Envelope *env;
- env = GNUNET_MQ_msg (msg,
- GNUNET_MESSAGE_TYPE_CADET_LOCAL_CHANNEL_DESTROY);
- msg->ccn = channel->ccn;
- GNUNET_MQ_send (h->mq,
- env);
+ if (NULL != h->mq)
+ {
+ env = GNUNET_MQ_msg (msg,
+ GNUNET_MESSAGE_TYPE_CADET_LOCAL_CHANNEL_DESTROY);
+ msg->ccn = channel->ccn;
+ GNUNET_MQ_send (h->mq,
+ env);
+ }
destroy_channel (channel);
}
/*
This file is part of GNUnet.
- Copyright (C) 2012 GNUnet e.V.
+ Copyright (C) 2012, 2017 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
* @file cadet/gnunet-cadet.c
* @brief Print information about cadet tunnels and peers.
* @author Bartlomiej Polot
+ * @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "cadet.h"
-/**
- * Option -m.
- */
-static int monitor_mode;
-
/**
* Option -P.
*/
*/
static char *target_port = "default";
-/**
- * Data pending in netcat mode.
- */
-static size_t data_size;
-
/**
* Cadet handle.
*/
*/
static struct GNUNET_CADET_Channel *ch;
-/**
- * Transmit handle.
- */
-static struct GNUNET_CADET_TransmitHandle *th;
-
/**
* HashCode of the given port string
*/
*/
struct GNUNET_CADET_Port *lp;
-/**
- * Shutdown task handle.
- */
-static struct GNUNET_SCHEDULER_Task *sd;
-
/**
* Task for reading from stdin.
*/
static struct GNUNET_SCHEDULER_Task *job;
+/**
+ * Wait for input on STDIO and send it out over the #ch.
+ */
static void
listen_stdio (void);
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Shutdown\n");
- if (NULL != th)
- {
- GNUNET_CADET_notify_transmit_ready_cancel (th);
- th = NULL;
- }
if (NULL != ch)
{
GNUNET_CADET_channel_destroy (ch);
ch = NULL;
}
- else if (NULL != target_id) {
- // FIXME: would be nicer to have proper NACK support from cadet_api
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Connection refused to %s\n",
- target_id);
- }
if (NULL != mh)
{
GNUNET_CADET_disconnect (mh);
/**
- * Function called to notify a client about the connection
- * begin ready to queue more data. "buf" will be
- * NULL and "size" zero if the connection was closed for
- * writing in the meantime.
- *
- * FIXME
+ * Task run in stdio mode, after some data is available at stdin.
*
- * @param cls closure
- * @param size number of bytes available in buf
- * @param buf where the callee should write the message
- * @return number of bytes written to buf
+ * @param cls Closure (unused).
*/
-static size_t
-data_ready (void *cls, size_t size, void *buf)
+static void
+read_stdio (void *cls)
{
+ struct GNUNET_MQ_Envelope *env;
struct GNUNET_MessageHeader *msg;
- size_t total_size;
+ char buf[60000];
+ ssize_t data_size;
- th = NULL;
-
- if (NULL == buf || 0 == size)
+ rd_task = NULL;
+ data_size = read (0,
+ buf,
+ 60000);
+ if (data_size < 1)
{
GNUNET_SCHEDULER_shutdown();
- return 0;
+ return;
}
-
- total_size = data_size + sizeof (struct GNUNET_MessageHeader);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "sending %u bytes\n",
+ "Read %u bytes from stdio\n",
(unsigned int) data_size);
- GNUNET_assert (size >= total_size);
-
- msg = buf;
- msg->size = htons (total_size);
- msg->type = htons (GNUNET_MESSAGE_TYPE_CADET_CLI);
- GNUNET_memcpy (&msg[1], cls, data_size);
+ env = GNUNET_MQ_msg_extra (msg,
+ data_size,
+ GNUNET_MESSAGE_TYPE_CADET_CLI);
+ GNUNET_memcpy (&msg[1],
+ buf,
+ data_size);
+ GNUNET_MQ_send (GNUNET_CADET_get_mq (ch),
+ env);
if (GNUNET_NO == echo)
{
listen_stdio ();
{
echo_time = GNUNET_TIME_absolute_get ();
}
-
- return total_size;
-}
-
-
-/**
- * Task run in stdio mode, after some data is available at stdin.
- *
- * @param cls Closure (unused).
- */
-static void
-read_stdio (void *cls)
-{
- static char buf[60000];
-
- rd_task = NULL;
- data_size = read (0, buf, 60000);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "stdio read %u bytes\n",
- (unsigned int) data_size);
- if (data_size < 1)
- {
- GNUNET_SCHEDULER_shutdown();
- return;
- }
- GNUNET_assert (NULL == th);
- th = GNUNET_CADET_notify_transmit_ready (ch, GNUNET_NO,
- GNUNET_TIME_UNIT_FOREVER_REL,
- sizeof (struct GNUNET_MessageHeader)
- + data_size,
- &data_ready, buf);
}
/**
- * Start listening to stdin
+ * Wait for input on STDIO and send it out over the #ch.
*/
static void
-listen_stdio (void)
+listen_stdio ()
{
struct GNUNET_NETWORK_FDSet *rs;
+ /* FIXME: why use 'rs' here, seems overly complicated... */
rs = GNUNET_NETWORK_fdset_create ();
- GNUNET_NETWORK_fdset_set_native (rs, 0);
+ GNUNET_NETWORK_fdset_set_native (rs,
+ 0); /* STDIN */
rd_task = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- rs, NULL,
- &read_stdio, NULL);
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ rs,
+ NULL,
+ &read_stdio,
+ NULL);
GNUNET_NETWORK_fdset_destroy (rs);
}
*
* It must NOT call #GNUNET_CADET_channel_destroy on the channel.
*
- * @param cls closure (set from #GNUNET_CADET_connect)
+ * @param cls closure
* @param channel connection to the other end (henceforth invalid)
- * @param channel_ctx place where local state associated
- * with the channel is stored
*/
static void
channel_ended (void *cls,
- const struct GNUNET_CADET_Channel *channel,
- void *channel_ctx)
+ const struct GNUNET_CADET_Channel *channel)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Channel ended!\n");
- if (channel != ch)
- {
- GNUNET_break (0);
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "ended: %p, expected: %p\n", channel, ch);
- }
- else
- {
- ch = NULL;
- }
- if (NULL != th)
- {
- GNUNET_CADET_notify_transmit_ready_cancel (th);
- th = NULL;
- }
-
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Channel ended!\n");
+ GNUNET_assert (channel == ch);
+ ch = NULL;
GNUNET_SCHEDULER_shutdown ();
}
* @param cls closure
* @param channel new handle to the channel
* @param initiator peer that started the channel
- * @param port Port this channel is for.
- * @param options CadetOption flag field, with all active option bits set to 1.
- *
- * @return initial channel context for the channel
- * (can be NULL -- that's not an error)
+ * @return initial channel context for the channel, we use @a channel
*/
static void *
channel_incoming (void *cls,
struct GNUNET_CADET_Channel *channel,
- const struct GNUNET_PeerIdentity *initiator,
- const struct GNUNET_HashCode *port,
- enum GNUNET_CADET_ChannelOption options)
+ const struct GNUNET_PeerIdentity *initiator)
{
- GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
- "Connected from %s\n",
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Incomming connection from %s\n",
GNUNET_i2s_full (initiator));
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Incoming channel %p on port %s\n",
- channel, GNUNET_h2s (port));
- if (NULL != ch)
- {
- GNUNET_break (0);
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "A channel already exists (%p)\n", ch);
- /*
- * From now on multiple channels will be sending data to us
- * making the service of this command unpredictable in its
- * current implementation. So for now let's just bail out.
- */
- GNUNET_SCHEDULER_shutdown();
- return NULL;
- }
- if (NULL == listen_port)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Not listening to channels\n");
- return NULL;
- }
- // Closing the listen port currently breaks open connections.
- // Is this an intentional departure from POSIX socket behavior?
- //
- if (NULL != lp) {
- /* Now that we have our circuit up and running, let's not
- * get confused by further incoming connect requests.
- * You need to start another 'gnunet-cadet -o' process
- * to receive those.
- */
- GNUNET_CADET_close_port (lp);
- lp = NULL;
- }
+ GNUNET_assert (NULL == ch);
+ GNUNET_assert (NULL != lp);
+ GNUNET_CADET_close_port (lp);
+ lp = NULL;
ch = channel;
if (GNUNET_NO == echo)
- {
listen_stdio ();
- return NULL;
- }
- data_size = 0;
- return NULL;
+ return channel;
}
+
/**
* @brief Send an echo request to the remote peer.
*
static void
send_echo (void *cls)
{
+ struct GNUNET_MQ_Envelope *env;
+ struct GNUNET_MessageHeader *msg;
+
echo_task = NULL;
if (NULL == ch)
return;
- GNUNET_assert (NULL == th);
- th = GNUNET_CADET_notify_transmit_ready (ch, GNUNET_NO,
- GNUNET_TIME_UNIT_FOREVER_REL,
- sizeof (struct GNUNET_MessageHeader),
- &data_ready, NULL);
+ env = GNUNET_MQ_msg (msg,
+ GNUNET_MESSAGE_TYPE_CADET_CLI);
+ GNUNET_MQ_send (GNUNET_CADET_get_mq (ch),
+ env);
}
request_dump (void *cls)
{
GNUNET_CADET_request_dump (mh);
- GNUNET_SCHEDULER_cancel (sd);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
- &shutdown_task, NULL);
+ GNUNET_SCHEDULER_shutdown ();
}
/**
- * Call CADET's monitor API, get info of one connection.
+ * Function called whenever a message is received.
*
- * @param cls Closure (unused).
+ * Each time the function must call #GNUNET_CADET_receive_done on the channel
+ * in order to receive the next message. This doesn't need to be immediate:
+ * can be delayed if some processing is done on the message.
+ *
+ * @param cls should match #ch
+ * @param message The actual message.
+ * @return #GNUNET_OK to keep the channel open,
+ * #GNUNET_SYSERR to close it (signal serious error).
*/
-static void
-create_channel (void *cls)
+static int
+check_data (void *cls,
+ const struct GNUNET_MessageHeader *message)
{
- struct GNUNET_PeerIdentity pid;
- enum GNUNET_CADET_ChannelOption opt;
-
- GNUNET_assert (NULL == ch);
-
- if (GNUNET_OK !=
- GNUNET_CRYPTO_eddsa_public_key_from_string (target_id,
- strlen (target_id),
- &pid.public_key))
- {
- FPRINTF (stderr,
- _("Invalid target `%s'\n"),
- target_id);
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting to `%s'\n", target_id);
- opt = GNUNET_CADET_OPTION_DEFAULT | GNUNET_CADET_OPTION_RELIABLE;
- GNUNET_CRYPTO_hash (target_port, strlen(target_port), &porthash);
- ch = GNUNET_CADET_channel_create (mh, NULL, &pid, &porthash, opt);
- if (GNUNET_NO == echo)
- listen_stdio ();
- else
- echo_task = GNUNET_SCHEDULER_add_now (&send_echo, NULL);
+ return GNUNET_OK; /* all is well-formed */
}
* in order to receive the next message. This doesn't need to be immediate:
* can be delayed if some processing is done on the message.
*
- * @param cls Closure (set from #GNUNET_CADET_connect).
- * @param channel Connection to the other end.
- * @param channel_ctx Place to store local state associated with the channel.
+ * @param cls NULL
* @param message The actual message.
- * @return #GNUNET_OK to keep the channel open,
- * #GNUNET_SYSERR to close it (signal serious error).
*/
-static int
-data_callback (void *cls,
- struct GNUNET_CADET_Channel *channel,
- void **channel_ctx,
- const struct GNUNET_MessageHeader *message)
+static void
+handle_data (void *cls,
+ const struct GNUNET_MessageHeader *message)
{
+ size_t payload_size = ntohs (message->size) - sizeof (*message);
uint16_t len;
ssize_t done;
uint16_t off;
const char *buf;
- GNUNET_break (ch == channel);
- GNUNET_CADET_receive_done (channel);
+ GNUNET_CADET_receive_done (ch);
if (GNUNET_YES == echo)
{
if (NULL != listen_port)
{
- /* Just listening to echo incoming messages*/
- if (NULL != th)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Last echo reply not yet sent, dropping current reply.\n");
- return GNUNET_OK;
- }
- th = GNUNET_CADET_notify_transmit_ready (channel, GNUNET_NO,
- GNUNET_TIME_UNIT_FOREVER_REL,
- sizeof (struct GNUNET_MessageHeader),
- &data_ready, NULL);
- return GNUNET_OK;
+ struct GNUNET_MQ_Envelope *env;
+ struct GNUNET_MessageHeader *msg;
+
+ env = GNUNET_MQ_msg_extra (msg,
+ payload_size,
+ GNUNET_MESSAGE_TYPE_CADET_CLI);
+ GNUNET_memcpy (&msg[1],
+ &message[1],
+ payload_size);
+ GNUNET_MQ_send (GNUNET_CADET_get_mq (ch),
+ env);
+ return;
}
else
{
latency = GNUNET_TIME_absolute_get_duration (echo_time);
echo_time = GNUNET_TIME_UNIT_FOREVER_ABS;
- FPRINTF (stdout, "time: %s\n",
- GNUNET_STRINGS_relative_time_to_string (latency, GNUNET_NO));
+ GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
+ "time: %s\n",
+ GNUNET_STRINGS_relative_time_to_string (latency,
+ GNUNET_NO));
echo_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
- &send_echo, NULL);
+ &send_echo,
+ NULL);
}
}
len = ntohs (message->size) - sizeof (*message);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got %u bytes\n", len);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Got %u bytes\n",
+ len);
buf = (const char *) &message[1];
off = 0;
while (off < len)
{
- done = write (1, &buf[off], len - off);
+ done = write (1,
+ &buf[off],
+ len - off);
if (done <= 0)
{
if (-1 == done)
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
"write");
- return GNUNET_SYSERR;
+ GNUNET_SCHEDULER_shutdown ();
+ return;
}
off += done;
}
- return GNUNET_OK;
}
{
if (NULL == peer)
{
- if (GNUNET_YES != monitor_mode)
- {
- GNUNET_SCHEDULER_shutdown();
- }
+ GNUNET_SCHEDULER_shutdown();
return;
}
- FPRINTF (stdout, "%s tunnel: %c, paths: %u\n",
- GNUNET_i2s_full (peer), tunnel ? 'Y' : 'N', n_paths);
+ FPRINTF (stdout,
+ "%s tunnel: %c, paths: %u\n",
+ GNUNET_i2s_full (peer),
+ tunnel ? 'Y' : 'N',
+ n_paths);
}
+
/**
* Method called to retrieve information about a specific peer
* known to the service.
int tunnel,
int neighbor,
unsigned int n_paths,
- struct GNUNET_PeerIdentity *paths)
+ const struct GNUNET_PeerIdentity *paths)
{
unsigned int i;
- struct GNUNET_PeerIdentity *p;
+ const struct GNUNET_PeerIdentity *p;
- FPRINTF (stdout, "%s [TUNNEL: %s, NEIGHBOR: %s, PATHS: %u]\n",
+ FPRINTF (stdout,
+ "%s [TUNNEL: %s, NEIGHBOR: %s, PATHS: %u]\n",
GNUNET_i2s_full (peer),
- tunnel ? "Y" : "N", neighbor ? "Y" : "N", n_paths);
+ tunnel ? "Y" : "N",
+ neighbor ? "Y" : "N",
+ n_paths);
p = paths;
for (i = 0; i < n_paths && NULL != p;)
{
- FPRINTF (stdout, "%s ", GNUNET_i2s (p));
- if (0 == memcmp (p, peer, sizeof (*p)))
+ FPRINTF (stdout,
+ "%s ",
+ GNUNET_i2s (p));
+ if (0 == memcmp (p,
+ peer,
+ sizeof (*p)))
{
FPRINTF (stdout, "\n");
i++;
{
if (NULL == peer)
{
- if (GNUNET_YES != monitor_mode)
- {
- GNUNET_SCHEDULER_shutdown();
- }
+ GNUNET_SCHEDULER_shutdown();
return;
}
- FPRINTF (stdout, "%s [ENC: %s, CON: %s] CHs: %u, CONNs: %u\n",
+ FPRINTF (stdout,
+ "%s [ENC: %s, CON: %s] CHs: %u, CONNs: %u\n",
GNUNET_i2s_full (peer),
- enc_2s (estate), conn_2s (cstate),
- channels, connections);
+ enc_2s (estate),
+ conn_2s (cstate),
+ channels,
+ connections);
}
FPRINTF (stdout, "\tencryption state: %s\n", enc_2s (estate));
FPRINTF (stdout, "\tconnection state: %s\n", conn_2s (cstate));
}
- if (GNUNET_YES != monitor_mode)
- {
- GNUNET_SCHEDULER_shutdown ();
- }
- return;
+ GNUNET_SCHEDULER_shutdown ();
}
const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
- static const struct GNUNET_CADET_MessageHandler handlers[] = {
- {&data_callback, GNUNET_MESSAGE_TYPE_CADET_CLI, 0},
- {NULL, 0, 0} /* FIXME add option to monitor msg types */
+ struct GNUNET_MQ_MessageHandler handlers[] = {
+ GNUNET_MQ_hd_var_size (data,
+ GNUNET_MESSAGE_TYPE_CADET_CLI,
+ struct GNUNET_MessageHeader,
+ NULL),
+ GNUNET_MQ_handler_end ()
};
/* FIXME add option to monitor apps */
target_id = args[0];
- if (target_id && args[1]) target_port = args[1];
+ if (target_id && args[1])
+ target_port = args[1];
if ( (0 != (request_peers | request_tunnels)
- || 0 != monitor_mode
|| NULL != tunnel_id
|| NULL != conn_id
|| NULL != channel_id)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"requesting debug dump\n");
- GNUNET_SCHEDULER_add_now (&request_dump, NULL);
- }
- else if (NULL != target_id)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Creating channel to %s\n",
- target_id);
- GNUNET_SCHEDULER_add_now (&create_channel, NULL);
+ job = GNUNET_SCHEDULER_add_now (&request_dump,
+ NULL);
}
else if (NULL != peer_id)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Show peer\n");
- job = GNUNET_SCHEDULER_add_now (&show_peer, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Show peer\n");
+ job = GNUNET_SCHEDULER_add_now (&show_peer,
+ NULL);
}
else if (NULL != tunnel_id)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Show tunnel\n");
- job = GNUNET_SCHEDULER_add_now (&show_tunnel, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Show tunnel\n");
+ job = GNUNET_SCHEDULER_add_now (&show_tunnel,
+ NULL);
}
else if (NULL != channel_id)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Show channel\n");
- job = GNUNET_SCHEDULER_add_now (&show_channel, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Show channel\n");
+ job = GNUNET_SCHEDULER_add_now (&show_channel,
+ NULL);
}
else if (NULL != conn_id)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Show connection\n");
- job = GNUNET_SCHEDULER_add_now (&show_connection, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Show connection\n");
+ job = GNUNET_SCHEDULER_add_now (&show_connection,
+ NULL);
}
else if (GNUNET_YES == request_peers)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Show all peers\n");
- job = GNUNET_SCHEDULER_add_now (&get_peers, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Show all peers\n");
+ job = GNUNET_SCHEDULER_add_now (&get_peers,
+ NULL);
}
else if (GNUNET_YES == request_tunnels)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Show all tunnels\n");
- job = GNUNET_SCHEDULER_add_now (&get_tunnels, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Show all tunnels\n");
+ job = GNUNET_SCHEDULER_add_now (&get_tunnels,
+ NULL);
}
- else if (NULL == listen_port)
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting to CADET service\n");
+ mh = GNUNET_CADET_connecT (cfg);
+ GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
+ NULL);
+ if (NULL == mh)
{
- FPRINTF (stderr, "No action requested\n");
+ GNUNET_SCHEDULER_shutdown ();
return;
}
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting to CADET service\n");
- mh = GNUNET_CADET_connect (cfg,
- NULL, /* cls */
- &channel_ended, /* cleaner */
- handlers);
- if (NULL == mh)
- GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
- else
- sd = GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL);
-
if (NULL != listen_port)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Opening CADET listen port\n");
- GNUNET_CRYPTO_hash (listen_port, strlen(listen_port), &porthash);
- lp = GNUNET_CADET_open_port (mh, &porthash, &channel_incoming, NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Opening CADET listen port\n");
+ GNUNET_CRYPTO_hash (listen_port,
+ strlen (listen_port),
+ &porthash);
+ lp = GNUNET_CADET_open_porT (mh,
+ &porthash,
+ &channel_incoming,
+ NULL,
+ NULL /* window changes */,
+ &channel_ended,
+ handlers);
+ }
+ if (NULL != target_id)
+ {
+ struct GNUNET_PeerIdentity pid;
+ enum GNUNET_CADET_ChannelOption opt;
+
+ if (GNUNET_OK !=
+ GNUNET_CRYPTO_eddsa_public_key_from_string (target_id,
+ strlen (target_id),
+ &pid.public_key))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
+ _("Invalid target `%s'\n"),
+ target_id);
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connecting to `%s:%s'\n",
+ target_id,
+ target_port);
+ opt = GNUNET_CADET_OPTION_DEFAULT | GNUNET_CADET_OPTION_RELIABLE;
+ GNUNET_CRYPTO_hash (target_port,
+ strlen(target_port),
+ &porthash);
+ ch = GNUNET_CADET_channel_creatE (mh,
+ NULL,
+ &pid,
+ &porthash,
+ opt,
+ NULL /* window changes */,
+ &channel_ended,
+ handlers);
+ if (GNUNET_YES == echo)
+ {
+ echo_task = GNUNET_SCHEDULER_add_now (&send_echo,
+ NULL);
+ }
+ else
+ {
+ listen_stdio ();
+ }
+ }
+
+ if ( (NULL == lp) &&
+ (NULL == job) &&
+ (NULL == ch) )
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
+ _("No action requested\n"));
+ GNUNET_SCHEDULER_shutdown ();
+ return;
}
}
* @return 0 ok, 1 on error
*/
int
-main (int argc, char *const *argv)
+main (int argc,
+ char *const *argv)
{
int res;
const char helpstr[] = "Create channels and retreive info about cadets status.";
static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-// {'a', "channel", "TUNNEL_ID:CHANNEL_ID",
-// gettext_noop ("provide information about a particular channel"),
-// GNUNET_YES, &GNUNET_GETOPT_set_string, &channel_id},
{'C', "connection", "CONNECTION_ID",
gettext_noop ("provide information about a particular connection"),
GNUNET_YES, &GNUNET_GETOPT_set_string, &conn_id},
{'d', "dump", NULL,
gettext_noop ("dump debug information to STDERR"),
GNUNET_NO, &GNUNET_GETOPT_set_one, &dump},
-// {'m', "monitor", NULL,
-// gettext_noop ("provide information about all events (continuously)"),
-// GNUNET_NO, &GNUNET_GETOPT_set_one, &monitor_mode},
- {'o', "open-port", NULL,
+ {'o', "open-port", "PORT",
gettext_noop ("port to listen to"),
GNUNET_YES, &GNUNET_GETOPT_set_string, &listen_port},
{'p', "peer", "PEER_ID",
GNUNET_GETOPT_OPTION_END
};
- monitor_mode = GNUNET_NO;
-
- if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_get_utf8_args (argc, argv,
+ &argc, &argv))
return 2;
- res = GNUNET_PROGRAM_run (argc, argv, "gnunet-cadet (OPTIONS | TARGET PORT)",
+ res = GNUNET_PROGRAM_run (argc, argv,
+ "gnunet-cadet (OPTIONS | TARGET PORT)",
gettext_noop (helpstr),
options, &run, NULL);
if (GNUNET_OK == res)
return 0;
- else
- return 1;
+ return 1;
}
/* end of gnunet-cadet.c */
projects / oweals / gnunet.git / commitdiff