GNUnet  0.10.x
Data Structures | Macros | Enumerations | Functions | Variables
gnunet-service-testbed_oc.c File Reference

code for handling overlay connect operations More...

#include "gnunet-service-testbed.h"
#include "gnunet-service-testbed_connectionpool.h"
#include "gnunet_transport_hello_service.h"
Include dependency graph for gnunet-service-testbed_oc.c:

Go to the source code of this file.

Data Structures

struct  ConnectivitySuggestContext
 Context information for requesting ATS to connect to a peer. More...
 
struct  LocalPeer2Context
 Context data for operations on second peer in local overlay connection contexts. More...
 
struct  RemotePeer2Context
 Context data for operations on second peer in remote overlay connection contexts. More...
 
struct  OverlayConnectContext
 Context information for connecting 2 peers in overlay. More...
 
struct  RemoteOverlayConnectCtx
 Context information for remote overlay connect operations. More...
 

Macros

#define LOG(kind, ...)   GNUNET_log_from(kind, "testbed-OC", __VA_ARGS__)
 Redefine LOG with a changed log component string. More...
 
#define PEER_EXPIRED(peer)   ((GNUNET_YES == peer->destroy_flag) && (0 == peer->reference_cnt))
 Condition for checking if given peer is ready to be destroyed. More...
 

Enumerations

enum  OverlayConnectContextType { OCC_TYPE_LOCAL, OCC_TYPE_REMOTE_SLAVE, OCC_TYPE_REMOTE_LATERAL }
 Types for context information we create for overlay connect requests. More...
 

Functions

void GST_cleanup_focc (struct ForwardedOverlayConnectContext *focc)
 Cleans up ForwardedOverlayConnectContext. More...
 
static void forwarded_overlay_connect_timeout (void *cls)
 Timeout task for cancelling a forwarded overlay connect connect. More...
 
static void forwarded_overlay_connect_listener (void *cls, const struct GNUNET_MessageHeader *msg)
 Callback to be called when forwarded overlay connection operation has a reply from the sub-controller successfull. More...
 
void GST_process_next_focc (struct RegisteredHostContext *rhc)
 Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext. More...
 
static void cleanup_occ_lp2c (struct LocalPeer2Context *lp2c)
 Cleans up any used handles in local peer2 context. More...
 
static void cleanup_occ_rp2c (struct RemotePeer2Context *rp2c)
 Cleans up any used handles in remote peer2 context. More...
 
static void cleanup_occ (struct OverlayConnectContext *occ)
 Cleanup overlay connect context structure. More...
 
static void do_cleanup_occ (void *cls)
 Task for cleaing up overlay connect context structure. More...
 
static void timeout_overlay_connect (void *cls)
 Task which will be run when overlay connect request has been timed out. More...
 
void GST_notify_client_disconnect_oc (struct GNUNET_SERVICE_Client *client)
 Notify OC subsystem that client disconnected. More...
 
static void send_overlay_connect_success_msg (struct OverlayConnectContext *occ)
 FIXME. More...
 
static void overlay_connect_notify (void *cls, const struct GNUNET_PeerIdentity *new_peer)
 Function called to notify transport users that another peer connected to us. More...
 
static void occ_cache_get_handle_ats_occ_cb (void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *my_identity, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Callback from cache with needed ATS handle set. More...
 
static void occ_cache_get_handle_ats_rocc_cb (void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *my_identity, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Callback from cache with needed ATS handle set. More...
 
static void send_hello (void *cls)
 Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to peer 1. More...
 
static void occ_hello_sent_cb (void *cls)
 Task that is run when hello has been sent If tc->reason = GNUNET_SCHEDULER_REASON_TIMEOUT then sending HELLO failed; if GNUNET_SCHEDULER_REASON_READ_READY is succeeded. More...
 
static void send_hello_thru_rocc (struct OverlayConnectContext *occ)
 Sends the HELLO of peer1 to peer2's controller through remote overlay connect request. More...
 
static void p2_transport_connect_cache_callback (void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *ignore_, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Callback from cache with needed handles set. More...
 
static void p2_transport_connect (struct OverlayConnectContext *occ)
 Connects to the transport of the other peer if it is a local peer and schedules the send hello task. More...
 
static int test_address (void *cls, const struct GNUNET_HELLO_Address *address, struct GNUNET_TIME_Absolute expiration)
 Test for checking whether HELLO message is empty. More...
 
static void hello_update_cb (void *cls, const struct GNUNET_MessageHeader *hello)
 Function called whenever there is an update to the HELLO of peers in the OverlayConnectClosure. More...
 
static void p1_transport_connect_cache_callback (void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *ignore_, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Callback from cache with needed handles set. More...
 
static void occ_cache_get_handle_core_cb (void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *my_identity, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Callback from cache with needed CORE handle set. More...
 
static void overlay_connect_get_config (void *cls, const struct GNUNET_MessageHeader *msg)
 Callback to be called when forwarded get peer config operation as part of overlay connect is successfull. More...
 
static void host_registration_comp (void *cls, const char *emsg)
 Callback which will be called after a host registration succeeded or failed. More...
 
static int reghost_match_iterator (void *cls, const struct GNUNET_HashCode *key, void *value)
 Iterator to match a registered host context. More...
 
static struct GNUNET_HashCode hash_hosts (struct GNUNET_TESTBED_Host *reg_host, struct GNUNET_TESTBED_Host *host)
 Function to generate the hashcode corresponding to a RegisteredHostContext. More...
 
static struct RegisteredHostContextregister_host (struct Slave *slave, struct GNUNET_TESTBED_Host *host)
 Checks if the given host is registered at the given slave. More...
 
static void forward_overlay_connect (const struct GNUNET_TESTBED_OverlayConnectMessage *msg, struct GNUNET_SERVICE_Client *client)
 Forwards the overlay connect request to a slave controller. More...
 
static void p2_controller_connect_cb (void *cls, struct GNUNET_TESTBED_Controller *c)
 Callback called when a connection to the controller of peer2 has been established. More...
 
void handle_overlay_connect (void *cls, const struct GNUNET_TESTBED_OverlayConnectMessage *msg)
 Handler for GNUNET_MESSAGE_TYPE_TESTBED_OVERLAY_CONNECT messages. More...
 
static void cleanup_rocc (struct RemoteOverlayConnectCtx *rocc)
 Function to cleanup RemoteOverlayConnectCtx and any associated tasks with it. More...
 
static void timeout_rocc_task (void *cls)
 Task to timeout rocc and cleanit up. More...
 
static void cache_transport_peer_connect_notify (void *cls, const struct GNUNET_PeerIdentity *new_peer)
 Function called to notify transport users that another peer connected to us. More...
 
static void attempt_connect_task (void *cls)
 Task to offer the HELLO message to the peer and ask it to connect to the peer whose identity is in RemoteOverlayConnectCtx. More...
 
static void rocc_hello_sent_cb (void *cls)
 Task that is run when hello has been sent If tc->reason = GNUNET_SCHEDULER_REASON_TIMEOUT then sending HELLO failed; if GNUNET_SCHEDULER_REASON_READ_READY is succeeded. More...
 
static void rocc_cache_get_handle_transport_cb (void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *ignore_, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Callback from cache with needed handles set. More...
 
int check_remote_overlay_connect (void *cls, const struct GNUNET_TESTBED_RemoteOverlayConnectMessage *msg)
 Check GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT messages. More...
 
void handle_remote_overlay_connect (void *cls, const struct GNUNET_TESTBED_RemoteOverlayConnectMessage *msg)
 Handler for GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT messages. More...
 
void GST_free_occq ()
 Clears all pending overlay connect contexts in queue. More...
 
void GST_free_roccq ()
 Clears all pending remote overlay connect contexts in queue. More...
 

Variables

static struct OverlayConnectContextoccq_head
 DLL head for OverlayConnectContext DLL - to be used to clean up during shutdown. More...
 
static struct OverlayConnectContextoccq_tail
 DLL tail for OverlayConnectContext DLL. More...
 
static struct RemoteOverlayConnectCtxroccq_head
 DLL head for RequectOverlayConnectContext DLL - to be used to clean up during shutdown. More...
 
static struct RemoteOverlayConnectCtxroccq_tail
 DLL tail for RequectOverlayConnectContext DLL. More...
 

Detailed Description

code for handling overlay connect operations

Author
Sree Harsha Totakura

Definition in file gnunet-service-testbed_oc.c.

Macro Definition Documentation

◆ LOG

#define LOG (   kind,
  ... 
)    GNUNET_log_from(kind, "testbed-OC", __VA_ARGS__)

Redefine LOG with a changed log component string.

Definition at line 37 of file gnunet-service-testbed_oc.c.

Referenced by handle_overlay_connect().

◆ PEER_EXPIRED

#define PEER_EXPIRED (   peer)    ((GNUNET_YES == peer->destroy_flag) && (0 == peer->reference_cnt))

Condition for checking if given peer is ready to be destroyed.

Parameters
peerthe peer to check

Definition at line 515 of file gnunet-service-testbed_oc.c.

Referenced by cleanup_occ().

Enumeration Type Documentation

◆ OverlayConnectContextType

Types for context information we create for overlay connect requests.

Enumerator
OCC_TYPE_LOCAL 

This type is used if the overlay connection is local i.e.

the connection has to be made between local peers

OCC_TYPE_REMOTE_SLAVE 

Type to be used when the first peer is local and the other peer is on a slave controller started by us.

OCC_TYPE_REMOTE_LATERAL 

Type to be used when the first peer is local and the other peer is on a controller which is not started by us.

Definition at line 76 of file gnunet-service-testbed_oc.c.

76  {
82 
88 
94 };
Type to be used when the first peer is local and the other peer is on a controller which is not start...
This type is used if the overlay connection is local i.e.
Type to be used when the first peer is local and the other peer is on a slave controller started by u...

Function Documentation

◆ GST_cleanup_focc()

void GST_cleanup_focc ( struct ForwardedOverlayConnectContext focc)

Cleans up ForwardedOverlayConnectContext.

Parameters
foccthe ForwardedOverlayConnectContext to cleanup

Definition at line 349 of file gnunet-service-testbed_oc.c.

References RegisteredHostContext::focc_dll_head, RegisteredHostContext::focc_dll_tail, GNUNET_CONTAINER_DLL_remove, GNUNET_free, GNUNET_free_non_null, ForwardedOverlayConnectContext::orig_msg, and ForwardedOverlayConnectContext::rhc.

Referenced by drop_client_entries(), forwarded_overlay_connect_listener(), forwarded_overlay_connect_timeout(), and reghost_free_iterator().

350 {
351  struct RegisteredHostContext *rhc = focc->rhc;
352 
354  rhc->focc_dll_tail,
355  focc);
357  GNUNET_free(focc);
358 }
struct ForwardedOverlayConnectContext * focc_dll_head
Head of the ForwardedOverlayConnectContext DLL.
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
This context information will be created for each host that is registered at slave controllers during...
struct GNUNET_MessageHeader * orig_msg
A copy of the original overlay connect message.
struct ForwardedOverlayConnectContext * focc_dll_tail
Tail of the ForwardedOverlayConnectContext DLL.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
struct RegisteredHostContext * rhc
Which host does this FOCC belong to?
#define GNUNET_free(ptr)
Wrapper around free.
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◆ forwarded_overlay_connect_timeout()

static void forwarded_overlay_connect_timeout ( void *  cls)
static

Timeout task for cancelling a forwarded overlay connect connect.

Parameters
clsthe struct ForwardedOperationContext

Definition at line 367 of file gnunet-service-testbed_oc.c.

References ForwardedOperationContext::cls, RegisteredHostContext::focc_dll_head, GST_cleanup_focc(), GST_forwarded_operation_timeout(), GST_process_next_focc(), LOG_DEBUG, ForwardedOverlayConnectContext::peer1, ForwardedOverlayConnectContext::peer2, and ForwardedOperationContext::timeout_task.

Referenced by GST_process_next_focc().

368 {
369  struct ForwardedOperationContext *fopc = cls;
370  struct RegisteredHostContext *rhc;
371  struct ForwardedOverlayConnectContext *focc;
372 
373  fopc->timeout_task = NULL;
374  rhc = fopc->cls;
375  focc = rhc->focc_dll_head;
376  LOG_DEBUG("Overlay linking between peers %u and %u failed\n",
377  focc->peer1,
378  focc->peer2);
379  GST_cleanup_focc(focc);
381  if (NULL != rhc->focc_dll_head)
383 }
struct GNUNET_SCHEDULER_Task * timeout_task
Task ID for the timeout task.
struct ForwardedOverlayConnectContext * focc_dll_head
Head of the ForwardedOverlayConnectContext DLL.
This context information will be created for each host that is registered at slave controllers during...
void GST_cleanup_focc(struct ForwardedOverlayConnectContext *focc)
Cleans up ForwardedOverlayConnectContext.
void GST_forwarded_operation_timeout(void *cls)
Task to free resources when forwarded operation has been timed out.
uint32_t peer2
The id of peer 2.
Context information to used during operations which forward the overlay connect message.
void * cls
Closure pointer.
void GST_process_next_focc(struct RegisteredHostContext *rhc)
Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext.
Context information for operations forwarded to subcontrollers.
#define LOG_DEBUG(...)
Debug logging shorthand.
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◆ forwarded_overlay_connect_listener()

static void forwarded_overlay_connect_listener ( void *  cls,
const struct GNUNET_MessageHeader msg 
)
static

Callback to be called when forwarded overlay connection operation has a reply from the sub-controller successfull.

We have to relay the reply msg back to the client

Parameters
clsForwardedOperationContext
msgthe peer create success message

Definition at line 395 of file gnunet-service-testbed_oc.c.

References ForwardedOperationContext::cls, RegisteredHostContext::focc_dll_head, GST_cleanup_focc(), GST_forwarded_operation_reply_relay(), and GST_process_next_focc().

Referenced by GST_process_next_focc().

397 {
398  struct ForwardedOperationContext *fopc = cls;
399  struct RegisteredHostContext *rhc;
400  struct ForwardedOverlayConnectContext *focc;
401 
402  rhc = fopc->cls;
404  focc = rhc->focc_dll_head;
405  GST_cleanup_focc(focc);
406  if (NULL != rhc->focc_dll_head)
408 }
struct ForwardedOverlayConnectContext * focc_dll_head
Head of the ForwardedOverlayConnectContext DLL.
This context information will be created for each host that is registered at slave controllers during...
void GST_cleanup_focc(struct ForwardedOverlayConnectContext *focc)
Cleans up ForwardedOverlayConnectContext.
void GST_forwarded_operation_reply_relay(void *cls, const struct GNUNET_MessageHeader *msg)
Callback to relay the reply msg of a forwarded operation back to the client.
Context information to used during operations which forward the overlay connect message.
void * cls
Closure pointer.
void GST_process_next_focc(struct RegisteredHostContext *rhc)
Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext.
Context information for operations forwarded to subcontrollers.
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◆ GST_process_next_focc()

void GST_process_next_focc ( struct RegisteredHostContext rhc)

Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext.

Parameters
rhcthe RegisteredHostContext

Definition at line 417 of file gnunet-service-testbed_oc.c.

References ForwardedOperationContext::client, ForwardedOverlayConnectContext::client, ForwardedOperationContext::cls, Slave::controller, Peer::details, RegisteredHostContext::focc_dll_head, fopcq_head, fopcq_tail, forwarded_overlay_connect_listener(), forwarded_overlay_connect_timeout(), GNUNET_assert, GNUNET_CONTAINER_DLL_insert_tail, GNUNET_free, GNUNET_new, GNUNET_SCHEDULER_add_delayed(), GNUNET_TESTBED_forward_operation_msg_(), GNUNET_YES, GST_peer_list, GST_timeout, Peer::is_remote, OP_OVERLAY_CONNECT, ForwardedOperationContext::opc, ForwardedOperationContext::operation_id, ForwardedOverlayConnectContext::operation_id, ForwardedOverlayConnectContext::orig_msg, peer, ForwardedOverlayConnectContext::peer1, Peer::remote, RegisteredHostContext::state, ForwardedOperationContext::timeout_task, ForwardedOperationContext::type, and VALID_PEER_ID.

Referenced by forwarded_overlay_connect_listener(), forwarded_overlay_connect_timeout(), and host_registration_comp().

418 {
419  struct ForwardedOperationContext *fopc;
420  struct ForwardedOverlayConnectContext *focc;
421  struct Peer *peer;
422  struct Slave *slave;
423 
424  focc = rhc->focc_dll_head;
425  GNUNET_assert(NULL != focc);
426  GNUNET_assert(RHC_DONE == rhc->state);
428  peer = GST_peer_list[focc->peer1];
430  GNUNET_assert(NULL != (slave = peer->details.remote.slave));
431  fopc = GNUNET_new(struct ForwardedOperationContext);
432  fopc->client = focc->client;
433  fopc->operation_id = focc->operation_id;
434  fopc->cls = rhc;
435  fopc->type = OP_OVERLAY_CONNECT;
436  fopc->opc =
438  focc->operation_id,
439  focc->orig_msg,
441  fopc);
442  GNUNET_free(focc->orig_msg);
443  focc->orig_msg = NULL;
446  fopc);
448  fopcq_tail,
449  fopc);
450 }
struct GNUNET_SCHEDULER_Task * timeout_task
Task ID for the timeout task.
struct ForwardedOverlayConnectContext * focc_dll_head
Head of the ForwardedOverlayConnectContext DLL.
static void forwarded_overlay_connect_listener(void *cls, const struct GNUNET_MessageHeader *msg)
Callback to be called when forwarded overlay connection operation has a reply from the sub-controller...
int is_remote
Is this peer locally created?
struct GNUNET_MessageHeader * orig_msg
A copy of the original overlay connect message.
struct Peer::@69::@71 remote
static void forwarded_overlay_connect_timeout(void *cls)
Timeout task for cancelling a forwarded overlay connect connect.
struct GNUNET_SERVICE_Client * client
The client handle.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define VALID_PEER_ID(id)
Condition to check if peer id is valid.
struct OperationContext * opc
The generated operation context.
struct Peer ** GST_peer_list
A list of peers we know about.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
Structure representing a connected(directly-linked) controller.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1237
struct ForwardedOperationContext * fopcq_head
DLL head for forwarded operation contexts.
uint64_t operation_id
The id of the operation which created this context information.
enum OperationType type
The type of the operation which is forwarded.
Context information to used during operations which forward the overlay connect message.
enum RegisteredHostContext::RHCState state
void * cls
Closure pointer.
struct GNUNET_TESTBED_Peer * peer
The peer associated with this model.
Overlay connection operation.
Definition: testbed_api.h:78
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
struct OperationContext * GNUNET_TESTBED_forward_operation_msg_(struct GNUNET_TESTBED_Controller *controller, uint64_t operation_id, const struct GNUNET_MessageHeader *msg, GNUNET_MQ_MessageCallback cc, void *cc_cls)
Sends the given message as an operation.
Definition: testbed_api.c:1362
struct ForwardedOperationContext * fopcq_tail
DLL tail for forwarded operation contexts.
struct GNUNET_TIME_Relative GST_timeout
Timeout for operations which may take some time.
union Peer::@69 details
struct GNUNET_SERVICE_Client * client
The client to which we have to reply.
Information about preferences and sessions we track per peer.
struct GNUNET_TESTBED_Controller * controller
The controller handle.
uint64_t operation_id
The id of the operation that has been forwarded.
#define GNUNET_YES
Definition: gnunet_common.h:77
Context information for operations forwarded to subcontrollers.
#define GNUNET_free(ptr)
Wrapper around free.
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◆ cleanup_occ_lp2c()

static void cleanup_occ_lp2c ( struct LocalPeer2Context lp2c)
static

Cleans up any used handles in local peer2 context.

Parameters
lp2cthe local peer2 context information

Definition at line 459 of file gnunet-service-testbed_oc.c.

References ConnectivitySuggestContext::cgh_p2_ats, ConnectivitySuggestContext::cgh_p2_th, ConnectivitySuggestContext::csh, GNUNET_ATS_connectivity_suggest_cancel(), GNUNET_TRANSPORT_offer_hello_cancel(), GST_connection_pool_get_handle_done(), LocalPeer2Context::ohh, and LocalPeer2Context::tcc.

Referenced by cleanup_occ(), and overlay_connect_notify().

460 {
461  if (NULL != lp2c->ohh)
462  {
464  lp2c->ohh = NULL;
465  }
466  if (NULL != lp2c->tcc.cgh_p2_th)
467  {
469  lp2c->tcc.cgh_p2_th = NULL;
470  }
471  if (NULL != lp2c->tcc.cgh_p2_ats)
472  {
474  lp2c->tcc.cgh_p2_ats = NULL;
475  }
476  if (NULL != lp2c->tcc.csh)
477  {
479  lp2c->tcc.csh = NULL;
480  }
481 }
struct GNUNET_TRANSPORT_OfferHelloHandle * ohh
The handle for offering the HELLO of the first peer to the second peer.
void GNUNET_ATS_connectivity_suggest_cancel(struct GNUNET_ATS_ConnectivitySuggestHandle *sh)
We no longer care about being connected to a peer.
void GNUNET_TRANSPORT_offer_hello_cancel(struct GNUNET_TRANSPORT_OfferHelloHandle *ohh)
Cancel the request to transport to offer the HELLO message.
struct GNUNET_ATS_ConnectivitySuggestHandle * csh
The ATS handle for the connectivity suggestion.
struct GST_ConnectionPool_GetHandle * cgh_p2_th
The GetCacheHandle for the peer2's transport handle (used to offer the HELLO to the peer)...
void GST_connection_pool_get_handle_done(struct GST_ConnectionPool_GetHandle *gh)
Relinquish a GST_ConnectionPool_GetHandle object.
struct GST_ConnectionPool_GetHandle * cgh_p2_ats
The GetCacheHandle for the peer2's ATS handle.
struct ConnectivitySuggestContext tcc
The transport ConnectivitySuggestContext.
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◆ cleanup_occ_rp2c()

static void cleanup_occ_rp2c ( struct RemotePeer2Context rp2c)
static

Cleans up any used handles in remote peer2 context.

Relinquishes the remote controller connection if it has been established on-demand.

Parameters
rp2cthe remote peer2 context information

Definition at line 491 of file gnunet-service-testbed_oc.c.

References GNUNET_TESTBED_forward_operation_msg_cancel_(), GST_neighbour_get_connection_cancel(), GST_neighbour_release_connection(), RemotePeer2Context::ncn, RemotePeer2Context::opc, RemotePeer2Context::p2c, and RemotePeer2Context::p2n.

Referenced by cleanup_occ(), and overlay_connect_notify().

492 {
493  if (NULL != rp2c->opc)
494  {
496  rp2c->opc = NULL;
497  }
498  if (NULL != rp2c->ncn)
499  {
501  rp2c->ncn = NULL;
502  }
503  if ((NULL != rp2c->p2c) && (NULL != rp2c->p2n))
504  {
506  rp2c->p2n = NULL;
507  }
508 }
struct NeighbourConnectNotification * ncn
Notification handle acquire to connect to a remote controller.
struct GNUNET_TESTBED_Controller * p2c
Controller of peer 2; If OCC_TYPE_REMOTE_LATERAL is the type of overlay connection then this can be N...
void GNUNET_TESTBED_forward_operation_msg_cancel_(struct OperationContext *opc)
Function to cancel an operation created by simply forwarding an operation message.
Definition: testbed_api.c:1399
struct Neighbour * p2n
The neighbour handle.
struct OperationContext * opc
Operation context for the suboperation we start to get the identity of the second peer...
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◆ cleanup_occ()

static void cleanup_occ ( struct OverlayConnectContext occ)
static

Cleanup overlay connect context structure.

Parameters
occthe overlay connect context

Definition at line 524 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::cgh_ch, OverlayConnectContext::cgh_p1th, cleanup_occ_lp2c(), cleanup_occ_rp2c(), OverlayConnectContext::cleanup_task, OverlayConnectContext::emsg, OverlayConnectContext::ghh, GNUNET_assert, GNUNET_CONTAINER_DLL_remove, GNUNET_free, GNUNET_free_non_null, GNUNET_SCHEDULER_cancel(), GNUNET_TRANSPORT_hello_get_cancel(), GST_connection_pool_get_handle_done(), GST_destroy_peer(), GST_peer_list, OverlayConnectContext::hello, OverlayConnectContext::local, LOG_DEBUG, OCC_TYPE_LOCAL, OCC_TYPE_REMOTE_LATERAL, OCC_TYPE_REMOTE_SLAVE, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_id, OverlayConnectContext::p2ctx, OverlayConnectContext::peer, PEER_EXPIRED, Peer::reference_cnt, OverlayConnectContext::remote, OverlayConnectContext::send_hello_task, OverlayConnectContext::timeout_task, and OverlayConnectContext::type.

Referenced by do_cleanup_occ(), GST_free_occq(), GST_notify_client_disconnect_oc(), and timeout_overlay_connect().

525 {
526  struct Peer *peer2;
527 
528  LOG_DEBUG("0x%llx: Cleaning up occ\n",
529  occ->op_id);
532  if (NULL != occ->send_hello_task)
534  if (NULL != occ->cleanup_task)
536  if (NULL != occ->timeout_task)
538  if (NULL != occ->cgh_ch)
540  if (NULL != occ->ghh)
543  GNUNET_assert(NULL != GST_peer_list);
544  GNUNET_assert(occ->peer->reference_cnt > 0);
545  occ->peer->reference_cnt--;
546  if (PEER_EXPIRED(occ->peer))
547  GST_destroy_peer(occ->peer);
548  switch (occ->type)
549  {
550  case OCC_TYPE_LOCAL:
551  peer2 = GST_peer_list[occ->other_peer_id];
552  GNUNET_assert(peer2->reference_cnt > 0);
553  peer2->reference_cnt--;
554  if (PEER_EXPIRED(peer2))
555  GST_destroy_peer(peer2);
557  break;
558 
562  break;
563  }
565  occq_tail,
566  occ);
567  GNUNET_free(occ);
568 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
uint64_t op_id
The id of the operation responsible for creating this context.
Type to be used when the first peer is local and the other peer is on a controller which is not start...
struct GST_ConnectionPool_GetHandle * cgh_ch
The GST_ConnectionPool_GetHandle for registering callback to notify CORE level peer connects and to g...
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
struct Peer ** GST_peer_list
A list of peers we know about.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
struct RemotePeer2Context remote
Context information to be used if the second peer is remote.
struct GST_ConnectionPool_GetHandle * cgh_p1th
The GST_ConnectionPool_GetHandle for the peer1's transport handle.
char * emsg
The error message we send if this overlay connect operation has timed out.
static struct OverlayConnectContext * occq_tail
DLL tail for OverlayConnectContext DLL.
struct Peer * peer
the first peer which is to expect an overlay connection from the second peer.
struct GNUNET_TRANSPORT_HelloGetHandle * ghh
Get GetHelloHandle to acquire a HELLO of the first peer.
enum OverlayConnectContextType type
The type of this context information.
struct LocalPeer2Context local
Context information to be used if the second peer is local.
struct GNUNET_MessageHeader * hello
HELLO of the first peer.
uint32_t reference_cnt
References to peers are using in forwarded overlay contexts and remote overlay connect contexts...
This type is used if the overlay connection is local i.e.
static struct OverlayConnectContext * occq_head
DLL head for OverlayConnectContext DLL - to be used to clean up during shutdown.
struct GNUNET_SCHEDULER_Task * send_hello_task
The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to connect to peer 2...
Type to be used when the first peer is local and the other peer is on a slave controller started by u...
uint32_t other_peer_id
The id of the second peer which has to connect to the first peer.
void GST_destroy_peer(struct Peer *peer)
Function to destroy a peer.
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
Information about preferences and sessions we track per peer.
#define PEER_EXPIRED(peer)
Condition for checking if given peer is ready to be destroyed.
struct GNUNET_SCHEDULER_Task * cleanup_task
The id of the cleanup task.
static void cleanup_occ_lp2c(struct LocalPeer2Context *lp2c)
Cleans up any used handles in local peer2 context.
void GST_connection_pool_get_handle_done(struct GST_ConnectionPool_GetHandle *gh)
Relinquish a GST_ConnectionPool_GetHandle object.
static void cleanup_occ_rp2c(struct RemotePeer2Context *rp2c)
Cleans up any used handles in remote peer2 context.
void GNUNET_TRANSPORT_hello_get_cancel(struct GNUNET_TRANSPORT_HelloGetHandle *ghh)
Stop receiving updates about changes to our HELLO message.
#define LOG_DEBUG(...)
Debug logging shorthand.
#define GNUNET_free(ptr)
Wrapper around free.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
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◆ do_cleanup_occ()

static void do_cleanup_occ ( void *  cls)
static

Task for cleaing up overlay connect context structure.

Parameters
clsthe overlay connect context

Definition at line 577 of file gnunet-service-testbed_oc.c.

References cleanup_occ(), and OverlayConnectContext::cleanup_task.

Referenced by occ_cache_get_handle_core_cb(), and overlay_connect_notify().

578 {
579  struct OverlayConnectContext *occ = cls;
580 
581  occ->cleanup_task = NULL;
582  cleanup_occ(occ);
583 }
Context information for connecting 2 peers in overlay.
static void cleanup_occ(struct OverlayConnectContext *occ)
Cleanup overlay connect context structure.
struct GNUNET_SCHEDULER_Task * cleanup_task
The id of the cleanup task.
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◆ timeout_overlay_connect()

static void timeout_overlay_connect ( void *  cls)
static

Task which will be run when overlay connect request has been timed out.

Parameters
clsthe OverlayConnectContext

Definition at line 592 of file gnunet-service-testbed_oc.c.

References cleanup_occ(), OverlayConnectContext::client, OverlayConnectContext::emsg, GNUNET_assert, GST_send_operation_fail_msg(), OverlayConnectContext::op_id, and OverlayConnectContext::timeout_task.

Referenced by handle_overlay_connect(), occ_cache_get_handle_ats_occ_cb(), occ_cache_get_handle_core_cb(), overlay_connect_get_config(), p1_transport_connect_cache_callback(), and p2_transport_connect_cache_callback().

593 {
594  struct OverlayConnectContext *occ = cls;
595 
596  GNUNET_assert(NULL != occ->timeout_task);
597  occ->timeout_task = NULL;
598  /* LOG (GNUNET_ERROR_TYPE_WARNING, */
599  /* "0x%llx: Timeout while connecting peers %u and %u: %s\n", occ->op_id, */
600  /* occ->peer->id, occ->other_peer_id, occ->emsg); */
602  occ->op_id,
603  occ->emsg);
604  cleanup_occ(occ);
605 }
uint64_t op_id
The id of the operation responsible for creating this context.
void GST_send_operation_fail_msg(struct GNUNET_SERVICE_Client *client, uint64_t operation_id, const char *emsg)
Send operation failure message to client.
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
char * emsg
The error message we send if this overlay connect operation has timed out.
struct GNUNET_SERVICE_Client * client
The client which has requested for overlay connection.
static void cleanup_occ(struct OverlayConnectContext *occ)
Cleanup overlay connect context structure.
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◆ GST_notify_client_disconnect_oc()

void GST_notify_client_disconnect_oc ( struct GNUNET_SERVICE_Client client)

Notify OC subsystem that client disconnected.

Parameters
clientthe client that disconnected

Definition at line 614 of file gnunet-service-testbed_oc.c.

References cleanup_occ(), ForwardedOperationContext::client, OverlayConnectContext::client, fopcq_head, GNUNET_SCHEDULER_cancel(), GST_forwarded_operation_timeout(), ForwardedOperationContext::next, OverlayConnectContext::next, and ForwardedOperationContext::timeout_task.

Referenced by client_disconnect_cb().

615 {
616  struct ForwardedOperationContext *fopc;
617  struct ForwardedOperationContext *fopcn;
618  struct OverlayConnectContext *occ;
619  struct OverlayConnectContext *occn;
620 
621  for (fopc = fopcq_head; NULL != fopc; fopc = fopcn)
622  {
623  fopcn = fopc->next;
624  if (fopc->client == client)
625  {
628  }
629  }
630  for (occ = occq_head; NULL != occ; occ = occn)
631  {
632  occn = occ->next;
633  if (occ->client == client)
634  cleanup_occ(occ);
635  }
636  // FIXME: implement clean up for client_keep replacements!
637 }
struct GNUNET_SCHEDULER_Task * timeout_task
Task ID for the timeout task.
Context information for connecting 2 peers in overlay.
struct OverlayConnectContext * next
The next pointer for maintaining a DLL of all OverlayConnectContexts.
void GST_forwarded_operation_timeout(void *cls)
Task to free resources when forwarded operation has been timed out.
struct GNUNET_SERVICE_Client * client
The client which has requested for overlay connection.
struct ForwardedOperationContext * fopcq_head
DLL head for forwarded operation contexts.
static void cleanup_occ(struct OverlayConnectContext *occ)
Cleanup overlay connect context structure.
static struct OverlayConnectContext * occq_head
DLL head for OverlayConnectContext DLL - to be used to clean up during shutdown.
struct GNUNET_SERVICE_Client * client
The client to which we have to reply.
struct ForwardedOperationContext * next
The next pointer for DLL.
Context information for operations forwarded to subcontrollers.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
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◆ send_overlay_connect_success_msg()

static void send_overlay_connect_success_msg ( struct OverlayConnectContext occ)
static

FIXME.

Definition at line 646 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::client, env, GNUNET_TESTBED_ConnectionEventMessage::event_type, GNUNET_htonll(), GNUNET_MESSAGE_TYPE_TESTBED_PEER_CONNECT_EVENT, GNUNET_MQ_msg, GNUNET_MQ_send(), GNUNET_SERVICE_client_get_mq(), GNUNET_TESTBED_ET_CONNECT, Peer::id, LOG_DEBUG, msg, OverlayConnectContext::op_id, GNUNET_TESTBED_ConnectionEventMessage::operation_id, OverlayConnectContext::other_peer_id, OverlayConnectContext::peer, GNUNET_TESTBED_ConnectionEventMessage::peer1, and GNUNET_TESTBED_ConnectionEventMessage::peer2.

Referenced by occ_cache_get_handle_core_cb(), and overlay_connect_notify().

647 {
648  struct GNUNET_MQ_Envelope *env;
650 
651  LOG_DEBUG("0x%llx: Peers connected - Sending overlay connect success\n",
652  occ->op_id);
653  env = GNUNET_MQ_msg(msg,
656  msg->peer1 = htonl(occ->peer->id);
657  msg->peer2 = htonl(occ->other_peer_id);
658  msg->operation_id = GNUNET_htonll(occ->op_id);
660  env);
661 }
uint64_t op_id
The id of the operation responsible for creating this context.
Event notification from a controller to a client.
Definition: testbed.h:461
struct GNUNET_MessageHeader * msg
Definition: 005.c:2
#define GNUNET_MESSAGE_TYPE_TESTBED_PEER_CONNECT_EVENT
Message for peer connect events.
struct GNUNET_MQ_Handle * GNUNET_SERVICE_client_get_mq(struct GNUNET_SERVICE_Client *c)
Obtain the message queue of c.
Definition: service.c:2424
uint32_t id
Our local reference id for this peer.
#define GNUNET_MQ_msg(mvar, type)
Allocate a GNUNET_MQ_Envelope.
Definition: gnunet_mq_lib.h:67
struct GNUNET_SERVICE_Client * client
The client which has requested for overlay connection.
struct Peer * peer
the first peer which is to expect an overlay connection from the second peer.
uint32_t peer2
Second peer.
Definition: testbed.h:481
uint64_t operation_id
Operation ID that is used to identify this operation.
Definition: testbed.h:486
uint64_t GNUNET_htonll(uint64_t n)
Convert unsigned 64-bit integer to network byte order.
Definition: common_endian.c:35
uint32_t peer1
First peer.
Definition: testbed.h:476
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
int32_t event_type
'enum GNUNET_TESTBED_EventType' (in NBO); either GNUNET_TESTBED_ET_CONNECT or GNUNET_TESTBED_ET_DISCO...
Definition: testbed.h:471
A connection between two peers was established.
uint32_t other_peer_id
The id of the second peer which has to connect to the first peer.
void GNUNET_MQ_send(struct GNUNET_MQ_Handle *mq, struct GNUNET_MQ_Envelope *ev)
Send a message with the given message queue.
Definition: mq.c:351
#define LOG_DEBUG(...)
Debug logging shorthand.
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◆ overlay_connect_notify()

static void overlay_connect_notify ( void *  cls,
const struct GNUNET_PeerIdentity new_peer 
)
static

Function called to notify transport users that another peer connected to us.

Parameters
clsclosure
new_peerthe peer that connected

Definition at line 672 of file gnunet-service-testbed_oc.c.

References cleanup_occ_lp2c(), cleanup_occ_rp2c(), OverlayConnectContext::cleanup_task, do_cleanup_occ(), OverlayConnectContext::emsg, GNUNET_assert, GNUNET_free, GNUNET_free_non_null, GNUNET_i2s(), GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_cancel(), GNUNET_strdup, OverlayConnectContext::local, LOG_DEBUG, OCC_TYPE_LOCAL, OCC_TYPE_REMOTE_LATERAL, OCC_TYPE_REMOTE_SLAVE, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_identity, OverlayConnectContext::p2ctx, OverlayConnectContext::peer_identity, OverlayConnectContext::remote, OverlayConnectContext::send_hello_task, send_overlay_connect_success_msg(), OverlayConnectContext::timeout_task, and OverlayConnectContext::type.

Referenced by handle_overlay_connect(), and overlay_connect_get_config().

674 {
675  struct OverlayConnectContext *occ = cls;
676  char *new_peer_str;
677  char *other_peer_str;
678 
679  LOG_DEBUG("Overlay connect notify\n");
680  if (0 ==
681  memcmp(new_peer, &occ->peer_identity,
682  sizeof(struct GNUNET_PeerIdentity)))
683  return;
684  new_peer_str = GNUNET_strdup(GNUNET_i2s(new_peer));
685  other_peer_str = GNUNET_strdup(GNUNET_i2s(&occ->other_peer_identity));
686  if (0 !=
687  memcmp(new_peer,
688  &occ->other_peer_identity,
689  sizeof(struct GNUNET_PeerIdentity)))
690  {
691  LOG_DEBUG("Unexpected peer %s connected when expecting peer %s\n",
692  new_peer_str,
693  other_peer_str);
694  GNUNET_free(new_peer_str);
695  GNUNET_free(other_peer_str);
696  return;
697  }
698  GNUNET_free(new_peer_str);
699  LOG_DEBUG("0x%llx: Peer %s connected to peer %s\n",
700  occ->op_id,
701  other_peer_str,
702  GNUNET_i2s(&occ->peer_identity));
703  GNUNET_free(other_peer_str);
704  if (NULL != occ->send_hello_task)
705  {
707  occ->send_hello_task = NULL;
708  }
709  GNUNET_assert(NULL != occ->timeout_task);
711  occ->timeout_task = NULL;
712  switch (occ->type)
713  {
714  case OCC_TYPE_LOCAL:
716  break;
717 
721  break;
722  }
724  occ->emsg = NULL;
727  occ);
728 }
uint64_t op_id
The id of the operation responsible for creating this context.
Type to be used when the first peer is local and the other peer is on a controller which is not start...
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
struct RemotePeer2Context remote
Context information to be used if the second peer is remote.
char * emsg
The error message we send if this overlay connect operation has timed out.
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
enum OverlayConnectContextType type
The type of this context information.
struct LocalPeer2Context local
Context information to be used if the second peer is local.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
This type is used if the overlay connection is local i.e.
struct GNUNET_SCHEDULER_Task * send_hello_task
The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to connect to peer 2...
Type to be used when the first peer is local and the other peer is on a slave controller started by u...
static void send_overlay_connect_success_msg(struct OverlayConnectContext *occ)
FIXME.
The identity of the host (wraps the signing key of the peer).
struct GNUNET_PeerIdentity peer_identity
The peer identity of the first peer.
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
struct GNUNET_SCHEDULER_Task * cleanup_task
The id of the cleanup task.
static void cleanup_occ_lp2c(struct LocalPeer2Context *lp2c)
Cleans up any used handles in local peer2 context.
static void cleanup_occ_rp2c(struct RemotePeer2Context *rp2c)
Cleans up any used handles in remote peer2 context.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
static void do_cleanup_occ(void *cls)
Task for cleaing up overlay connect context structure.
#define LOG_DEBUG(...)
Debug logging shorthand.
#define GNUNET_free(ptr)
Wrapper around free.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
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◆ occ_cache_get_handle_ats_occ_cb()

static void occ_cache_get_handle_ats_occ_cb ( void *  cls,
struct GNUNET_CORE_Handle ch,
struct GNUNET_TRANSPORT_CoreHandle th,
struct GNUNET_ATS_ConnectivityHandle ac,
const struct GNUNET_PeerIdentity my_identity,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Callback from cache with needed ATS handle set.

Parameters
clsa struct OverlayConnectCtx *
chthe handle to CORE. Can be NULL if it is not requested
ththe handle to TRANSPORT. Can be NULL if it is not requested
acthe handle to ATS. Can be NULL if it is not requested
my_identitythe identity of our peer
cfgconfiguration of the peer

Definition at line 742 of file gnunet-service-testbed_oc.c.

References ConnectivitySuggestContext::csh, OverlayConnectContext::emsg, GNUNET_asprintf(), GNUNET_assert, GNUNET_ATS_connectivity_suggest(), GNUNET_free_non_null, GNUNET_i2s(), GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_cancel(), Peer::id, OverlayConnectContext::local, OCC_TYPE_LOCAL, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_identity, OverlayConnectContext::p2ctx, OverlayConnectContext::peer, OverlayConnectContext::peer_identity, LocalPeer2Context::tcc, timeout_overlay_connect(), OverlayConnectContext::timeout_task, and OverlayConnectContext::type.

Referenced by occ_hello_sent_cb().

748 {
749  struct OverlayConnectContext *occ = cls;
750  struct LocalPeer2Context *lp2c;
751 
753  GNUNET_assert(NULL != occ->timeout_task);
755  if (NULL == ac)
756  {
757  GNUNET_asprintf(&occ->emsg,
758  "0x%llx: Failed to connect to ATS of peer with id: %u",
759  occ->op_id,
760  occ->peer->id);
762  occ->timeout_task =
764  occ);
765  return;
766  }
767  occ->emsg = NULL;
768 
769  GNUNET_asprintf(&occ->emsg,
770  "0x%llx: Timeout during GNUNET_ATS_connectivity_suggest() at peer %s",
771  occ->op_id,
773 
774  lp2c = &occ->p2ctx.local;
775  lp2c->tcc.csh =
777  &occ->peer_identity,
778  1);
779 }
uint64_t op_id
The id of the operation responsible for creating this context.
Context data for operations on second peer in local overlay connection contexts.
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
uint32_t id
Our local reference id for this peer.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
char * emsg
The error message we send if this overlay connect operation has timed out.
static void timeout_overlay_connect(void *cls)
Task which will be run when overlay connect request has been timed out.
struct GNUNET_ATS_ConnectivitySuggestHandle * GNUNET_ATS_connectivity_suggest(struct GNUNET_ATS_ConnectivityHandle *ch, const struct GNUNET_PeerIdentity *peer, uint32_t strength)
We would like to receive address suggestions for a peer.
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
struct Peer * peer
the first peer which is to expect an overlay connection from the second peer.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
enum OverlayConnectContextType type
The type of this context information.
struct LocalPeer2Context local
Context information to be used if the second peer is local.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
This type is used if the overlay connection is local i.e.
struct GNUNET_ATS_ConnectivitySuggestHandle * csh
The ATS handle for the connectivity suggestion.
struct GNUNET_PeerIdentity peer_identity
The peer identity of the first peer.
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
struct ConnectivitySuggestContext tcc
The transport ConnectivitySuggestContext.
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◆ occ_cache_get_handle_ats_rocc_cb()

static void occ_cache_get_handle_ats_rocc_cb ( void *  cls,
struct GNUNET_CORE_Handle ch,
struct GNUNET_TRANSPORT_CoreHandle th,
struct GNUNET_ATS_ConnectivityHandle ac,
const struct GNUNET_PeerIdentity my_identity,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Callback from cache with needed ATS handle set.

Parameters
clsa struct RemoteOverlayConnectCtx *
chthe handle to CORE. Can be NULL if it is not requested
ththe handle to TRANSPORT. Can be NULL if it is not requested
acthe handle to ATS. Can be NULL if it is not requested
my_identitythe identity of our peer

Definition at line 792 of file gnunet-service-testbed_oc.c.

References RemoteOverlayConnectCtx::a_id, ConnectivitySuggestContext::csh, GNUNET_ATS_connectivity_suggest(), send_hello(), and RemoteOverlayConnectCtx::tcc.

Referenced by rocc_hello_sent_cb().

798 {
799  struct RemoteOverlayConnectCtx *rocc = cls;
800 
801  rocc->tcc.csh =
803  &rocc->a_id,
804  1);
805 }
struct GNUNET_PeerIdentity a_id
The peer identity of peer A.
struct ConnectivitySuggestContext tcc
The transport try connect context.
struct GNUNET_ATS_ConnectivitySuggestHandle * GNUNET_ATS_connectivity_suggest(struct GNUNET_ATS_ConnectivityHandle *ch, const struct GNUNET_PeerIdentity *peer, uint32_t strength)
We would like to receive address suggestions for a peer.
Context information for remote overlay connect operations.
struct GNUNET_ATS_ConnectivitySuggestHandle * csh
The ATS handle for the connectivity suggestion.
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◆ send_hello()

static void send_hello ( void *  cls)
static

Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to peer 1.

Task to offer HELLO of peer 1 to peer 2.

Parameters
clsthe OverlayConnectContext

If peer2 is local it is offered using its TRANSPORT connection; if remote the HELLO is sent remotely by using send_hello_thru_rocc()

Parameters
clsthe OverlayConnectContext

Definition at line 903 of file gnunet-service-testbed_oc.c.

References ConnectivitySuggestContext::cfg, GNUNET_assert, GNUNET_break, GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u32(), GNUNET_free, GNUNET_i2s(), GNUNET_SCHEDULER_add_delayed(), GNUNET_strdup, GNUNET_TIME_relative_multiply(), GNUNET_TIME_UNIT_MILLISECONDS, GNUNET_TRANSPORT_offer_hello(), OverlayConnectContext::hello, OverlayConnectContext::local, LOG_DEBUG, occ_hello_sent_cb(), OCC_TYPE_LOCAL, LocalPeer2Context::ohh, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_identity, OverlayConnectContext::p2ctx, OverlayConnectContext::peer_identity, OverlayConnectContext::send_hello_task, send_hello_thru_rocc(), LocalPeer2Context::tcc, OverlayConnectContext::timeout_task, and OverlayConnectContext::type.

Referenced by occ_cache_get_handle_ats_rocc_cb(), p2_transport_connect(), and p2_transport_connect_cache_callback().

904 {
905  struct OverlayConnectContext *occ = cls;
906  struct LocalPeer2Context *lp2c;
907  char *other_peer_str;
908 
909  occ->send_hello_task = NULL;
910  GNUNET_assert(NULL != occ->timeout_task);
911  GNUNET_assert(NULL != occ->hello);
912  if (OCC_TYPE_LOCAL != occ->type)
913  {
915  return;
916  }
917  lp2c = &occ->p2ctx.local;
918  other_peer_str = GNUNET_strdup(GNUNET_i2s(&occ->other_peer_identity));
919  LOG_DEBUG("0x%llx: Offering HELLO of %s to %s\n",
920  occ->op_id,
921  GNUNET_i2s(&occ->peer_identity),
922  other_peer_str);
923  GNUNET_free(other_peer_str);
924  lp2c->ohh =
926  occ->hello,
928  occ);
929  if (NULL == lp2c->ohh)
930  {
931  GNUNET_break(0);
932  occ->send_hello_task =
935  100 +
938  &send_hello, occ);
939  }
940 }
uint64_t op_id
The id of the operation responsible for creating this context.
static void send_hello_thru_rocc(struct OverlayConnectContext *occ)
Sends the HELLO of peer1 to peer2's controller through remote overlay connect request.
Context data for operations on second peer in local overlay connection contexts.
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
struct GNUNET_TRANSPORT_OfferHelloHandle * ohh
The handle for offering the HELLO of the first peer to the second peer.
Context information for connecting 2 peers in overlay.
uint32_t GNUNET_CRYPTO_random_u32(enum GNUNET_CRYPTO_Quality mode, uint32_t i)
Produce a random value.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur...
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1237
enum OverlayConnectContextType type
The type of this context information.
struct LocalPeer2Context local
Context information to be used if the second peer is local.
static void send_hello(void *cls)
Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to peer 1...
struct GNUNET_MessageHeader * hello
HELLO of the first peer.
struct GNUNET_TIME_Relative GNUNET_TIME_relative_multiply(struct GNUNET_TIME_Relative rel, unsigned long long factor)
Multiply relative time by a given factor.
Definition: time.c:440
const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration of the peer from cache.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
#define GNUNET_TIME_UNIT_MILLISECONDS
One millisecond.
This type is used if the overlay connection is local i.e.
struct GNUNET_SCHEDULER_Task * send_hello_task
The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to connect to peer 2...
struct GNUNET_PeerIdentity peer_identity
The peer identity of the first peer.
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
static void occ_hello_sent_cb(void *cls)
Task that is run when hello has been sent If tc->reason = GNUNET_SCHEDULER_REASON_TIMEOUT then sendin...
struct GNUNET_TRANSPORT_OfferHelloHandle * GNUNET_TRANSPORT_offer_hello(const struct GNUNET_CONFIGURATION_Handle *cfg, const struct GNUNET_MessageHeader *hello, GNUNET_SCHEDULER_TaskCallback cont, void *cont_cls)
Offer the transport service the HELLO of another peer.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
#define LOG_DEBUG(...)
Debug logging shorthand.
No good quality of the operation is needed (i.e., random numbers can be pseudo-random).
#define GNUNET_free(ptr)
Wrapper around free.
struct ConnectivitySuggestContext tcc
The transport ConnectivitySuggestContext.
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◆ occ_hello_sent_cb()

static void occ_hello_sent_cb ( void *  cls)
static

Task that is run when hello has been sent If tc->reason = GNUNET_SCHEDULER_REASON_TIMEOUT then sending HELLO failed; if GNUNET_SCHEDULER_REASON_READ_READY is succeeded.

Parameters
clsthe overlay connect context

Definition at line 826 of file gnunet-service-testbed_oc.c.

References ConnectivitySuggestContext::cgh_p2_ats, Peer::details, OverlayConnectContext::emsg, GNUNET_asprintf(), GNUNET_assert, GNUNET_free_non_null, GNUNET_i2s(), GST_connection_pool_get_handle(), GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY, GST_peer_list, Peer::local, OverlayConnectContext::local, occ_cache_get_handle_ats_occ_cb(), OCC_TYPE_LOCAL, LocalPeer2Context::ohh, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_id, OverlayConnectContext::other_peer_identity, OverlayConnectContext::p2ctx, OverlayConnectContext::send_hello_task, LocalPeer2Context::tcc, OverlayConnectContext::timeout_task, and OverlayConnectContext::type.

Referenced by send_hello().

827 {
828  struct OverlayConnectContext *occ = cls;
829  struct LocalPeer2Context *lp2c;
830  struct Peer *peer2;
831 
833  GNUNET_assert(NULL != occ->timeout_task);
834  lp2c = &occ->p2ctx.local;
835  lp2c->ohh = NULL;
836 
837  GNUNET_assert(NULL == occ->send_hello_task);
839 
840  GNUNET_asprintf(&occ->emsg,
841  "0x%llx: Timeout while acquiring ATS of %s from cache",
842  occ->op_id,
844  GNUNET_assert(NULL != (peer2 = GST_peer_list[occ->other_peer_id]));
845  lp2c->tcc.cgh_p2_ats =
847  peer2->details.local.cfg,
850  occ, NULL, NULL, NULL);
851 }
uint64_t op_id
The id of the operation responsible for creating this context.
Context data for operations on second peer in local overlay connection contexts.
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
struct GNUNET_TRANSPORT_OfferHelloHandle * ohh
The handle for offering the HELLO of the first peer to the second peer.
static void occ_cache_get_handle_ats_occ_cb(void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *my_identity, const struct GNUNET_CONFIGURATION_Handle *cfg)
Callback from cache with needed ATS handle set.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
struct Peer ** GST_peer_list
A list of peers we know about.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
char * emsg
The error message we send if this overlay connect operation has timed out.
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
struct Peer::@69::@70 local
enum OverlayConnectContextType type
The type of this context information.
struct LocalPeer2Context local
Context information to be used if the second peer is local.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
This type is used if the overlay connection is local i.e.
struct GNUNET_SCHEDULER_Task * send_hello_task
The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to connect to peer 2...
uint32_t other_peer_id
The id of the second peer which has to connect to the first peer.
union Peer::@69 details
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
Information about preferences and sessions we track per peer.
struct GST_ConnectionPool_GetHandle * GST_connection_pool_get_handle(unsigned int peer_id, const struct GNUNET_CONFIGURATION_Handle *cfg, enum GST_ConnectionPool_Service service, GST_connection_pool_connection_ready_cb cb, void *cb_cls, const struct GNUNET_PeerIdentity *target, GST_connection_pool_peer_connect_notify connect_notify_cb, void *connect_notify_cb_cls)
Get a connection handle to service.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
struct GST_ConnectionPool_GetHandle * cgh_p2_ats
The GetCacheHandle for the peer2's ATS handle.
struct ConnectivitySuggestContext tcc
The transport ConnectivitySuggestContext.
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◆ send_hello_thru_rocc()

static void send_hello_thru_rocc ( struct OverlayConnectContext occ)
static

Sends the HELLO of peer1 to peer2's controller through remote overlay connect request.

Parameters
occthe overlay connect context. Its type must be either OCC_TYPE_REMOTE_SLAVE or OCC_TYPE_REMOTE_LATERAL

Definition at line 862 of file gnunet-service-testbed_oc.c.

References GNUNET_assert, GNUNET_free, GNUNET_htonll(), GNUNET_i2s(), GNUNET_malloc, GNUNET_memcpy, GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT, GNUNET_strdup, GNUNET_TESTBED_queue_message_(), OverlayConnectContext::hello, LOG_DEBUG, msg, OCC_TYPE_LOCAL, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_id, OverlayConnectContext::other_peer_identity, RemotePeer2Context::p2c, OverlayConnectContext::p2ctx, OverlayConnectContext::peer_identity, OverlayConnectContext::remote, GNUNET_MessageHeader::size, and OverlayConnectContext::type.

Referenced by send_hello().

863 {
865  char *other_peer_str;
866  uint16_t msize;
867  uint16_t hello_size;
868 
870  GNUNET_assert(NULL != occ->hello);
871  other_peer_str = GNUNET_strdup(GNUNET_i2s(&occ->other_peer_identity));
872  LOG_DEBUG("0x%llx: Offering HELLO of %s (size: %u) to %s via Remote Overlay Request\n",
873  occ->op_id,
874  GNUNET_i2s(&occ->peer_identity),
875  ntohs(occ->hello->size),
876  other_peer_str);
877  GNUNET_free(other_peer_str);
878  hello_size = ntohs(occ->hello->size);
879  msize = sizeof(struct GNUNET_TESTBED_RemoteOverlayConnectMessage) + hello_size;
880  msg = GNUNET_malloc(msize);
881  msg->header.type =
883  msg->header.size = htons(msize);
884  msg->peer = htonl(occ->other_peer_id);
885  msg->operation_id = GNUNET_htonll(occ->op_id);
886  msg->peer_identity = occ->peer_identity;
887  GNUNET_memcpy(msg->hello,
888  occ->hello,
889  hello_size);
891  &msg->header);
892 }
uint64_t op_id
The id of the operation responsible for creating this context.
Message sent from host controller of a peer(A) to the host controller of another peer(B) to request B...
Definition: testbed.h:396
struct GNUNET_MessageHeader * msg
Definition: 005.c:2
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
struct RemotePeer2Context remote
Context information to be used if the second peer is remote.
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format...
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
struct GNUNET_TESTBED_Controller * p2c
Controller of peer 2; If OCC_TYPE_REMOTE_LATERAL is the type of overlay connection then this can be N...
#define GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT
Message to request a controller to make one of its peer to connect to another peer using the containe...
enum OverlayConnectContextType type
The type of this context information.
struct GNUNET_MessageHeader * hello
HELLO of the first peer.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
This type is used if the overlay connection is local i.e.
uint64_t GNUNET_htonll(uint64_t n)
Convert unsigned 64-bit integer to network byte order.
Definition: common_endian.c:35
void GNUNET_TESTBED_queue_message_(struct GNUNET_TESTBED_Controller *controller, struct GNUNET_MessageHeader *msg)
Queues a message in send queue for sending to the service.
Definition: testbed_api.c:1328
uint32_t other_peer_id
The id of the second peer which has to connect to the first peer.
struct GNUNET_PeerIdentity peer_identity
The peer identity of the first peer.
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
#define LOG_DEBUG(...)
Debug logging shorthand.
#define GNUNET_malloc(size)
Wrapper around malloc.
#define GNUNET_free(ptr)
Wrapper around free.
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◆ p2_transport_connect_cache_callback()

static void p2_transport_connect_cache_callback ( void *  cls,
struct GNUNET_CORE_Handle ch,
struct GNUNET_TRANSPORT_CoreHandle th,
struct GNUNET_ATS_ConnectivityHandle ac,
const struct GNUNET_PeerIdentity ignore_,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Callback from cache with needed handles set.

Parameters
clsthe closure passed to GST_cache_get_handle_transport()
chthe handle to CORE. Can be NULL if it is not requested
ththe handle to TRANSPORT. Can be NULL if it is not requested
acthe handle to ATS. Can be NULL if it is not requested
ignore_peer identity which is ignored in this callback
cfgconfiguration of the peer

Definition at line 954 of file gnunet-service-testbed_oc.c.

References ConnectivitySuggestContext::cfg, OverlayConnectContext::emsg, GNUNET_asprintf(), GNUNET_assert, GNUNET_i2s(), GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_cancel(), OverlayConnectContext::local, OCC_TYPE_LOCAL, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_identity, OverlayConnectContext::p2ctx, send_hello(), OverlayConnectContext::send_hello_task, LocalPeer2Context::tcc, ConnectivitySuggestContext::th_, timeout_overlay_connect(), OverlayConnectContext::timeout_task, and OverlayConnectContext::type.

Referenced by p2_transport_connect().

960 {
961  struct OverlayConnectContext *occ = cls;
962 
964  if (NULL == th)
965  {
966  GNUNET_asprintf(&occ->emsg,
967  "0x%llx: Cannot connect to TRANSPORT of %s",
968  occ->op_id,
971  occ->timeout_task =
973  return;
974  }
975  occ->p2ctx.local.tcc.th_ = th;
976  occ->p2ctx.local.tcc.cfg = cfg;
977  GNUNET_asprintf(&occ->emsg,
978  "0x%llx: Timeout while offering HELLO to %s",
979  occ->op_id,
982 }
uint64_t op_id
The id of the operation responsible for creating this context.
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
char * emsg
The error message we send if this overlay connect operation has timed out.
static void timeout_overlay_connect(void *cls)
Task which will be run when overlay connect request has been timed out.
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
enum OverlayConnectContextType type
The type of this context information.
struct LocalPeer2Context local
Context information to be used if the second peer is local.
static void send_hello(void *cls)
Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to peer 1...
const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration of the peer from cache.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
This type is used if the overlay connection is local i.e.
static struct GNUNET_CONFIGURATION_Handle * cfg
Our configuration.
Definition: gnunet-arm.c:104
struct GNUNET_SCHEDULER_Task * send_hello_task
The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to connect to peer 2...
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
struct GNUNET_TRANSPORT_CoreHandle * th_
The transport handle obtained from cache.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
struct ConnectivitySuggestContext tcc
The transport ConnectivitySuggestContext.
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◆ p2_transport_connect()

static void p2_transport_connect ( struct OverlayConnectContext occ)
static

Connects to the transport of the other peer if it is a local peer and schedules the send hello task.

Parameters
occthe overlay connect context

Definition at line 992 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::cgh_p1th, ConnectivitySuggestContext::cgh_p2_th, Peer::details, OverlayConnectContext::emsg, OverlayConnectContext::ghh, GNUNET_asprintf(), GNUNET_assert, GNUNET_ERROR_TYPE_DEBUG, GNUNET_i2s(), GNUNET_log, GNUNET_SCHEDULER_add_now(), GST_connection_pool_get_handle(), GST_CONNECTIONPOOL_SERVICE_TRANSPORT, GST_peer_list, OverlayConnectContext::hello, Peer::local, OverlayConnectContext::local, OCC_TYPE_LOCAL, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_id, OverlayConnectContext::other_peer_identity, OverlayConnectContext::p1th_, p2_transport_connect_cache_callback(), OverlayConnectContext::p2ctx, send_hello(), OverlayConnectContext::send_hello_task, LocalPeer2Context::tcc, and OverlayConnectContext::type.

Referenced by hello_update_cb(), and occ_cache_get_handle_core_cb().

993 {
994  struct Peer *peer2;
995 
996  /* HUH? Why to *obtain* HELLO? Seems we use this to *SEND* the
997  HELLO! */
999  "Connecting to transport of peer %s to obtain HELLO\n",
1001  GNUNET_assert(NULL == occ->emsg);
1002  GNUNET_assert(NULL != occ->hello);
1003  GNUNET_assert(NULL == occ->ghh);
1004  GNUNET_assert(NULL == occ->p1th_);
1005  GNUNET_assert(NULL == occ->cgh_p1th);
1006  if (OCC_TYPE_LOCAL == occ->type)
1007  {
1008  GNUNET_assert(NULL != (peer2 = GST_peer_list[occ->other_peer_id]));
1009  occ->p2ctx.local.tcc.cgh_p2_th =
1011  peer2->details.local.cfg,
1014  occ, NULL, NULL, NULL);
1015  return;
1016  }
1017  GNUNET_asprintf(&occ->emsg,
1018  "0x%llx: Timeout while offering HELLO to %s",
1019  occ->op_id,
1022 }
uint64_t op_id
The id of the operation responsible for creating this context.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
struct Peer ** GST_peer_list
A list of peers we know about.
struct GST_ConnectionPool_GetHandle * cgh_p1th
The GST_ConnectionPool_GetHandle for the peer1's transport handle.
char * emsg
The error message we send if this overlay connect operation has timed out.
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
struct Peer::@69::@70 local
struct GNUNET_TRANSPORT_CoreHandle * p1th_
Transport handle of the first peer obtained from cache to get its HELLO.
struct GNUNET_TRANSPORT_HelloGetHandle * ghh
Get GetHelloHandle to acquire a HELLO of the first peer.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
enum OverlayConnectContextType type
The type of this context information.
struct LocalPeer2Context local
Context information to be used if the second peer is local.
static void send_hello(void *cls)
Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to peer 1...
struct GNUNET_MessageHeader * hello
HELLO of the first peer.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
This type is used if the overlay connection is local i.e.
static void p2_transport_connect_cache_callback(void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *ignore_, const struct GNUNET_CONFIGURATION_Handle *cfg)
Callback from cache with needed handles set.
struct GNUNET_SCHEDULER_Task * send_hello_task
The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to connect to peer 2...
uint32_t other_peer_id
The id of the second peer which has to connect to the first peer.
union Peer::@69 details
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
Information about preferences and sessions we track per peer.
struct GST_ConnectionPool_GetHandle * GST_connection_pool_get_handle(unsigned int peer_id, const struct GNUNET_CONFIGURATION_Handle *cfg, enum GST_ConnectionPool_Service service, GST_connection_pool_connection_ready_cb cb, void *cb_cls, const struct GNUNET_PeerIdentity *target, GST_connection_pool_peer_connect_notify connect_notify_cb, void *connect_notify_cb_cls)
Get a connection handle to service.
#define GNUNET_log(kind,...)
struct GST_ConnectionPool_GetHandle * cgh_p2_th
The GetCacheHandle for the peer2's transport handle (used to offer the HELLO to the peer)...
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
struct ConnectivitySuggestContext tcc
The transport ConnectivitySuggestContext.
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◆ test_address()

static int test_address ( void *  cls,
const struct GNUNET_HELLO_Address address,
struct GNUNET_TIME_Absolute  expiration 
)
static

Test for checking whether HELLO message is empty.

Parameters
clsempty flag to set
addressthe HELLO
expirationexpiration of the HELLO
Returns
GNUNET_OK

Definition at line 1034 of file gnunet-service-testbed_oc.c.

References GNUNET_NO, and GNUNET_OK.

Referenced by GNUNET_ATS_solver_generate_property_start(), and hello_update_cb().

1037 {
1038  int *empty = cls;
1039 
1040  *empty = GNUNET_NO;
1041  return GNUNET_OK;
1042 }
#define GNUNET_NO
Definition: gnunet_common.h:78
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
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◆ hello_update_cb()

static void hello_update_cb ( void *  cls,
const struct GNUNET_MessageHeader hello 
)
static

Function called whenever there is an update to the HELLO of peers in the OverlayConnectClosure.

If we have a valid HELLO, we connect to the peer 2's transport and offer peer 1's HELLO and ask peer 2 to connect to peer 1

Parameters
clsclosure
helloour updated HELLO

Definition at line 1054 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::cgh_p1th, OverlayConnectContext::emsg, OverlayConnectContext::ghh, GNUNET_free_non_null, GNUNET_HELLO_iterate_addresses(), GNUNET_i2s(), GNUNET_malloc, GNUNET_memcpy, GNUNET_NO, GNUNET_TRANSPORT_hello_get_cancel(), GNUNET_YES, GST_cache_add_hello(), GST_connection_pool_get_handle_done(), OverlayConnectContext::hello, Peer::id, LOG_DEBUG, OverlayConnectContext::op_id, OverlayConnectContext::p1th_, p2_transport_connect(), OverlayConnectContext::peer, OverlayConnectContext::peer_identity, GNUNET_MessageHeader::size, and test_address().

Referenced by p1_transport_connect_cache_callback().

1056 {
1057  struct OverlayConnectContext *occ = cls;
1058  int empty;
1059  uint16_t msize;
1060 
1061  msize = ntohs(hello->size);
1062  empty = GNUNET_YES;
1064  hello, GNUNET_NO,
1065  &test_address,
1066  &empty);
1067  if (GNUNET_YES == empty)
1068  {
1069  LOG_DEBUG("0x%llx: HELLO of %s is empty\n",
1070  occ->op_id,
1071  GNUNET_i2s(&occ->peer_identity));
1072  return;
1073  }
1074  LOG_DEBUG("0x%llx: Received HELLO of %s\n",
1075  occ->op_id,
1076  GNUNET_i2s(&occ->peer_identity));
1077  occ->hello = GNUNET_malloc(msize);
1078  GST_cache_add_hello(occ->peer->id, hello);
1079  GNUNET_memcpy(occ->hello, hello, msize);
1081  occ->ghh = NULL;
1083  occ->cgh_p1th = NULL;
1084  occ->p1th_ = NULL;
1085  GNUNET_free_non_null(occ->emsg);
1086  occ->emsg = NULL;
1087  p2_transport_connect(occ);
1088 }
uint64_t op_id
The id of the operation responsible for creating this context.
A HELLO message is used to exchange information about transports with other peers.
static void p2_transport_connect(struct OverlayConnectContext *occ)
Connects to the transport of the other peer if it is a local peer and schedules the send hello task...
Context information for connecting 2 peers in overlay.
uint32_t id
Our local reference id for this peer.
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
#define GNUNET_NO
Definition: gnunet_common.h:78
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
struct GST_ConnectionPool_GetHandle * cgh_p1th
The GST_ConnectionPool_GetHandle for the peer1's transport handle.
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format...
char * emsg
The error message we send if this overlay connect operation has timed out.
struct GNUNET_TRANSPORT_CoreHandle * p1th_
Transport handle of the first peer obtained from cache to get its HELLO.
struct Peer * peer
the first peer which is to expect an overlay connection from the second peer.
struct GNUNET_HELLO_Message * GNUNET_HELLO_iterate_addresses(const struct GNUNET_HELLO_Message *msg, int return_modified, GNUNET_HELLO_AddressIterator it, void *it_cls)
Iterate over all of the addresses in the HELLO.
Definition: hello.c:252
struct GNUNET_TRANSPORT_HelloGetHandle * ghh
Get GetHelloHandle to acquire a HELLO of the first peer.
struct GNUNET_MessageHeader * hello
HELLO of the first peer.
struct GNUNET_PeerIdentity peer_identity
The peer identity of the first peer.
static int test_address(void *cls, const struct GNUNET_HELLO_Address *address, struct GNUNET_TIME_Absolute expiration)
Test for checking whether HELLO message is empty.
#define GNUNET_YES
Definition: gnunet_common.h:77
void GST_connection_pool_get_handle_done(struct GST_ConnectionPool_GetHandle *gh)
Relinquish a GST_ConnectionPool_GetHandle object.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
void GNUNET_TRANSPORT_hello_get_cancel(struct GNUNET_TRANSPORT_HelloGetHandle *ghh)
Stop receiving updates about changes to our HELLO message.
#define LOG_DEBUG(...)
Debug logging shorthand.
#define GNUNET_malloc(size)
Wrapper around malloc.
void GST_cache_add_hello(const unsigned int peer_id, const struct GNUNET_MessageHeader *hello)
Caches the HELLO of the given peer.
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◆ p1_transport_connect_cache_callback()

static void p1_transport_connect_cache_callback ( void *  cls,
struct GNUNET_CORE_Handle ch,
struct GNUNET_TRANSPORT_CoreHandle th,
struct GNUNET_ATS_ConnectivityHandle ac,
const struct GNUNET_PeerIdentity ignore_,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Callback from cache with needed handles set.

Parameters
clsthe closure passed to GST_cache_get_handle_transport()
chthe handle to CORE. Can be NULL if it is not requested
ththe handle to TRANSPORT. Can be NULL if it is not requested
acthe handle to ATS. Can be NULL if it is not requested
ignore_peer identity which is ignored in this callback

Definition at line 1101 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::cgh_p1th, OverlayConnectContext::emsg, OverlayConnectContext::ghh, GNUNET_asprintf(), GNUNET_assert, GNUNET_free_non_null, GNUNET_i2s(), GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_cancel(), GNUNET_TRANSPORT_AC_ANY, GNUNET_TRANSPORT_hello_get(), hello_update_cb(), OverlayConnectContext::op_id, OverlayConnectContext::p1th_, OverlayConnectContext::peer_identity, timeout_overlay_connect(), and OverlayConnectContext::timeout_task.

Referenced by occ_cache_get_handle_core_cb().

1107 {
1108  struct OverlayConnectContext *occ = cls;
1109 
1110  GNUNET_free_non_null(occ->emsg);
1111  occ->emsg = NULL;
1112  if (NULL == th)
1113  {
1114  GNUNET_asprintf(&occ->emsg,
1115  "0x%llx: Cannot connect to TRANSPORT of %s",
1116  occ->op_id,
1117  GNUNET_i2s(&occ->peer_identity));
1119  occ->timeout_task =
1121  return;
1122  }
1123  GNUNET_assert(NULL == occ->p1th_);
1124  GNUNET_assert(NULL != occ->cgh_p1th);
1125  occ->p1th_ = th;
1126  GNUNET_asprintf(&occ->emsg,
1127  "0x%llx: Timeout while acquiring HELLO of peer %s",
1128  occ->op_id,
1129  GNUNET_i2s(&occ->peer_identity));
1130  occ->ghh = GNUNET_TRANSPORT_hello_get(cfg,
1132  &hello_update_cb,
1133  occ);
1134 }
uint64_t op_id
The id of the operation responsible for creating this context.
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
static void hello_update_cb(void *cls, const struct GNUNET_MessageHeader *hello)
Function called whenever there is an update to the HELLO of peers in the OverlayConnectClosure.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
struct GST_ConnectionPool_GetHandle * cgh_p1th
The GST_ConnectionPool_GetHandle for the peer1's transport handle.
char * emsg
The error message we send if this overlay connect operation has timed out.
static void timeout_overlay_connect(void *cls)
Task which will be run when overlay connect request has been timed out.
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
struct GNUNET_TRANSPORT_CoreHandle * p1th_
Transport handle of the first peer obtained from cache to get its HELLO.
struct GNUNET_TRANSPORT_HelloGetHandle * ghh
Get GetHelloHandle to acquire a HELLO of the first peer.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
struct GNUNET_PeerIdentity peer_identity
The peer identity of the first peer.
struct GNUNET_TRANSPORT_HelloGetHandle * GNUNET_TRANSPORT_hello_get(const struct GNUNET_CONFIGURATION_Handle *cfg, enum GNUNET_TRANSPORT_AddressClass ac, GNUNET_TRANSPORT_HelloUpdateCallback rec, void *rec_cls)
Obtain updates on changes to the HELLO message for this peer.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
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◆ occ_cache_get_handle_core_cb()

static void occ_cache_get_handle_core_cb ( void *  cls,
struct GNUNET_CORE_Handle ch,
struct GNUNET_TRANSPORT_CoreHandle th,
struct GNUNET_ATS_ConnectivityHandle ac,
const struct GNUNET_PeerIdentity my_identity,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Callback from cache with needed CORE handle set.

Parameters
clsthe closure passed to GST_cache_get_handle_transport()
chthe handle to CORE. Can be NULL if it is not requested
ththe handle to TRANSPORT. Can be NULL if it is not requested
acthe handle to ATS. Can be NULL if it is not requested
my_identitythe identity of our peer

Definition at line 1147 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::cgh_p1th, OverlayConnectContext::cleanup_task, Peer::details, do_cleanup_occ(), OverlayConnectContext::emsg, GNUNET_asprintf(), GNUNET_assert, GNUNET_copy_message(), GNUNET_CORE_get_mq(), GNUNET_free_non_null, GNUNET_i2s(), GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_cancel(), GST_cache_lookup_hello(), GST_connection_pool_get_handle(), GST_CONNECTIONPOOL_SERVICE_TRANSPORT, OverlayConnectContext::hello, Peer::id, Peer::local, LOG_DEBUG, my_identity, OverlayConnectContext::op_id, OverlayConnectContext::other_peer_identity, p1_transport_connect_cache_callback(), p2_transport_connect(), OverlayConnectContext::peer, OverlayConnectContext::peer_identity, send_overlay_connect_success_msg(), timeout_overlay_connect(), and OverlayConnectContext::timeout_task.

Referenced by handle_overlay_connect(), and overlay_connect_get_config().

1153 {
1154  struct OverlayConnectContext *occ = cls;
1155  const struct GNUNET_MessageHeader *hello;
1156 
1157  GNUNET_assert(NULL != occ->timeout_task);
1158  GNUNET_free_non_null(occ->emsg);
1159  if ((NULL == ch) || (NULL == my_identity))
1160  {
1161  GNUNET_asprintf(&occ->emsg,
1162  "0x%llx: Failed to connect to CORE of peer with "
1163  "id: %u",
1164  occ->op_id,
1165  occ->peer->id);
1167  occ->timeout_task =
1169  return;
1170  }
1171  occ->emsg = NULL;
1172  if (NULL !=
1173  GNUNET_CORE_get_mq(ch,
1174  &occ->other_peer_identity))
1175  {
1176  LOG_DEBUG("0x%llx: Target peer already connected\n",
1177  occ->op_id);
1179  occ->timeout_task = NULL;
1182  return;
1183  }
1184  occ->peer_identity = *my_identity;
1185  LOG_DEBUG("0x%llx: Acquiring HELLO of peer %s\n",
1186  occ->op_id,
1187  GNUNET_i2s(&occ->peer_identity));
1188  /* Lookup for HELLO in hello cache */
1189  if (NULL != (hello = GST_cache_lookup_hello(occ->peer->id)))
1190  {
1191  LOG_DEBUG("0x%llx: HELLO of peer %s found in cache\n",
1192  occ->op_id,
1193  GNUNET_i2s(&occ->peer_identity));
1194  occ->hello = GNUNET_copy_message(hello);
1195  p2_transport_connect(occ);
1196  return;
1197  }
1198  GNUNET_asprintf(&occ->emsg,
1199  "0x%llx: Timeout while acquiring TRANSPORT of %s from cache",
1200  occ->op_id,
1201  GNUNET_i2s(&occ->peer_identity));
1202  occ->cgh_p1th =
1204  occ->peer->details.local.cfg,
1207  occ,
1208  NULL, NULL, NULL);
1209 }
uint64_t op_id
The id of the operation responsible for creating this context.
static void p2_transport_connect(struct OverlayConnectContext *occ)
Connects to the transport of the other peer if it is a local peer and schedules the send hello task...
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
uint32_t id
Our local reference id for this peer.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
static struct GNUNET_PeerIdentity my_identity
Identity of this peer.
struct GST_ConnectionPool_GetHandle * cgh_p1th
The GST_ConnectionPool_GetHandle for the peer1's transport handle.
char * emsg
The error message we send if this overlay connect operation has timed out.
static void timeout_overlay_connect(void *cls)
Task which will be run when overlay connect request has been timed out.
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
struct Peer::@69::@70 local
struct Peer * peer
the first peer which is to expect an overlay connection from the second peer.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
struct GNUNET_MessageHeader * hello
HELLO of the first peer.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
const struct GNUNET_MessageHeader * GST_cache_lookup_hello(const unsigned int peer_id)
Looks up in the hello cache and returns the HELLO of the given peer.
static void p1_transport_connect_cache_callback(void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *ignore_, const struct GNUNET_CONFIGURATION_Handle *cfg)
Callback from cache with needed handles set.
static void send_overlay_connect_success_msg(struct OverlayConnectContext *occ)
FIXME.
struct GNUNET_MQ_Handle * GNUNET_CORE_get_mq(const struct GNUNET_CORE_Handle *h, const struct GNUNET_PeerIdentity *pid)
Obtain the message queue for a connected peer.
Definition: core_api.c:759
struct GNUNET_PeerIdentity peer_identity
The peer identity of the first peer.
union Peer::@69 details
struct GST_ConnectionPool_GetHandle * GST_connection_pool_get_handle(unsigned int peer_id, const struct GNUNET_CONFIGURATION_Handle *cfg, enum GST_ConnectionPool_Service service, GST_connection_pool_connection_ready_cb cb, void *cb_cls, const struct GNUNET_PeerIdentity *target, GST_connection_pool_peer_connect_notify connect_notify_cb, void *connect_notify_cb_cls)
Get a connection handle to service.
struct GNUNET_SCHEDULER_Task * cleanup_task
The id of the cleanup task.
Header for all communications.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
static void do_cleanup_occ(void *cls)
Task for cleaing up overlay connect context structure.
#define LOG_DEBUG(...)
Debug logging shorthand.
struct GNUNET_MessageHeader * GNUNET_copy_message(const struct GNUNET_MessageHeader *msg)
Create a copy of the given message.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
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◆ overlay_connect_get_config()

static void overlay_connect_get_config ( void *  cls,
const struct GNUNET_MessageHeader msg 
)
static

Callback to be called when forwarded get peer config operation as part of overlay connect is successfull.

Connection to Peer 1's core is made and is checked for new connection from peer 2

Parameters
clsForwardedOperationContext
msgthe peer create success message

Definition at line 1221 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::cgh_ch, Peer::details, OverlayConnectContext::emsg, GNUNET_asprintf(), GNUNET_assert, GNUNET_free_non_null, GNUNET_MESSAGE_TYPE_TESTBED_PEER_INFORMATION, GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_cancel(), GST_connection_pool_get_handle(), GST_CONNECTIONPOOL_SERVICE_CORE, Peer::id, Peer::local, occ_cache_get_handle_core_cb(), OCC_TYPE_LOCAL, OverlayConnectContext::op_id, RemotePeer2Context::opc, OverlayConnectContext::other_peer_identity, overlay_connect_notify(), OverlayConnectContext::p2ctx, OverlayConnectContext::peer, GNUNET_TESTBED_PeerConfigurationInformationMessage::peer_identity, OverlayConnectContext::remote, timeout_overlay_connect(), OverlayConnectContext::timeout_task, OverlayConnectContext::type, and GNUNET_MessageHeader::type.

Referenced by p2_controller_connect_cb().

1223 {
1224  struct OverlayConnectContext *occ = cls;
1225  struct RemotePeer2Context *rp2c;
1227 
1229  rp2c = &occ->p2ctx.remote;
1230  rp2c->opc = NULL;
1231  GNUNET_assert(NULL != occ->timeout_task);
1233  {
1235  occ->timeout_task =
1237  }
1238  cmsg =
1240  occ->other_peer_identity = cmsg->peer_identity;
1241  GNUNET_free_non_null(occ->emsg);
1242  GNUNET_asprintf(&occ->emsg,
1243  "0x%llx: Timeout while connecting to CORE of peer with "
1244  "id: %u",
1245  occ->op_id,
1246  occ->peer->id);
1247  occ->cgh_ch =
1249  occ->peer->details.local.cfg,
1252  occ,
1253  &occ->other_peer_identity,
1255  occ);
1256  return;
1257 }
static void occ_cache_get_handle_core_cb(void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *my_identity, const struct GNUNET_CONFIGURATION_Handle *cfg)
Callback from cache with needed CORE handle set.
uint64_t op_id
The id of the operation responsible for creating this context.
struct GST_ConnectionPool_GetHandle * cgh_ch
The GST_ConnectionPool_GetHandle for registering callback to notify CORE level peer connects and to g...
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
uint32_t id
Our local reference id for this peer.
Peer configuration and identity reply from controller to a client.
Definition: testbed.h:584
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
Context data for operations on second peer in remote overlay connection contexts. ...
struct RemotePeer2Context remote
Context information to be used if the second peer is remote.
char * emsg
The error message we send if this overlay connect operation has timed out.
static void timeout_overlay_connect(void *cls)
Task which will be run when overlay connect request has been timed out.
static void overlay_connect_notify(void *cls, const struct GNUNET_PeerIdentity *new_peer)
Function called to notify transport users that another peer connected to us.
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
uint16_t type
The type of the message (GNUNET_MESSAGE_TYPE_XXXX), in big-endian format.
struct Peer::@69::@70 local
struct Peer * peer
the first peer which is to expect an overlay connection from the second peer.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
enum OverlayConnectContextType type
The type of this context information.
#define GNUNET_MESSAGE_TYPE_TESTBED_PEER_INFORMATION
Message containing the peer's information.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
struct GNUNET_PeerIdentity peer_identity
Identity of the peer.
Definition: testbed.h:603
This type is used if the overlay connection is local i.e.
union Peer::@69 details
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
struct GST_ConnectionPool_GetHandle * GST_connection_pool_get_handle(unsigned int peer_id, const struct GNUNET_CONFIGURATION_Handle *cfg, enum GST_ConnectionPool_Service service, GST_connection_pool_connection_ready_cb cb, void *cb_cls, const struct GNUNET_PeerIdentity *target, GST_connection_pool_peer_connect_notify connect_notify_cb, void *connect_notify_cb_cls)
Get a connection handle to service.
struct OperationContext * opc
Operation context for the suboperation we start to get the identity of the second peer...
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
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◆ host_registration_comp()

static void host_registration_comp ( void *  cls,
const char *  emsg 
)
static

Callback which will be called after a host registration succeeded or failed.

Parameters
clsthe RegisteredHostContext
emsgthe error message; NULL if host registration is successful

Definition at line 1267 of file gnunet-service-testbed_oc.c.

References GST_process_next_focc(), RegisteredHostContext::RHC_DONE, and RegisteredHostContext::state.

Referenced by register_host().

1268 {
1269  struct RegisteredHostContext *rhc = cls;
1270 
1271  rhc->state = RHC_DONE;
1272  GST_process_next_focc(rhc);
1273 }
This context information will be created for each host that is registered at slave controllers during...
enum RegisteredHostContext::RHCState state
void GST_process_next_focc(struct RegisteredHostContext *rhc)
Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext.
State where we attempt to do the overlay connection again.
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◆ reghost_match_iterator()

static int reghost_match_iterator ( void *  cls,
const struct GNUNET_HashCode key,
void *  value 
)
static

Iterator to match a registered host context.

Parameters
clspointer 2 pointer of RegisteredHostContext
keycurrent key code
valuevalue in the hash map
Returns
GNUNET_YES if we should continue to iterate, GNUNET_NO if not.

Definition at line 1287 of file gnunet-service-testbed_oc.c.

References GNUNET_free, GNUNET_NO, GNUNET_YES, RegisteredHostContext::host, RegisteredHostContext::reg_host, and value.

Referenced by register_host().

1290 {
1291  struct RegisteredHostContext **rh = cls;
1292  struct RegisteredHostContext *rh_val = value;
1293 
1294  if ((rh_val->host == (*rh)->host) && (rh_val->reg_host == (*rh)->reg_host))
1295  {
1296  GNUNET_free(*rh);
1297  *rh = rh_val;
1298  return GNUNET_NO;
1299  }
1300  return GNUNET_YES;
1301 }
This context information will be created for each host that is registered at slave controllers during...
#define GNUNET_NO
Definition: gnunet_common.h:78
struct GNUNET_TESTBED_Host * host
The host of the controller which has to connect to the above rhost.
static char * value
Value of the record to add/remove.
struct GNUNET_TESTBED_Host * reg_host
The host which is being registered.
#define GNUNET_YES
Definition: gnunet_common.h:77
#define GNUNET_free(ptr)
Wrapper around free.
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◆ hash_hosts()

static struct GNUNET_HashCode hash_hosts ( struct GNUNET_TESTBED_Host reg_host,
struct GNUNET_TESTBED_Host host 
)
static

Function to generate the hashcode corresponding to a RegisteredHostContext.

Parameters
reg_hostthe host which is being registered in RegisteredHostContext
hostthe host of the controller which has to connect to the above rhost
Returns
the hashcode

Definition at line 1312 of file gnunet-service-testbed_oc.c.

References GNUNET_CRYPTO_hash(), and GNUNET_TESTBED_host_get_id_().

Referenced by register_host().

1314 {
1315  struct GNUNET_HashCode hash;
1316  uint32_t host_ids[2];
1317 
1318  host_ids[0] = GNUNET_TESTBED_host_get_id_(reg_host);
1319  host_ids[1] = GNUNET_TESTBED_host_get_id_(host);
1320  GNUNET_CRYPTO_hash(host_ids, sizeof(host_ids), &hash);
1321  return hash;
1322 }
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
Definition: crypto_hash.c:44
uint32_t GNUNET_TESTBED_host_get_id_(const struct GNUNET_TESTBED_Host *host)
Obtain the host's unique global ID.
A 512-bit hashcode.
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◆ register_host()

static struct RegisteredHostContext* register_host ( struct Slave slave,
struct GNUNET_TESTBED_Host host 
)
static

Checks if the given host is registered at the given slave.

Parameters
slavethe slave where registration has to be checked. The check is actually done through a locally maintained hashmap. No communication with the slave is involved.
hostthe host to register
Returns
If the given host is not registered already or the registration is pending, it returns the registration context. Any overlay connects to be forwarded should be queued in the context so that they can be executed when the registration is completed. If the given host is already registered, NULL is returned.

Definition at line 1339 of file gnunet-service-testbed_oc.c.

References GNUNET_assert, GNUNET_CONTAINER_multihashmap_contains(), GNUNET_CONTAINER_multihashmap_get_multiple(), GNUNET_CONTAINER_multihashmap_put(), GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE, GNUNET_new, GNUNET_NO, GNUNET_SYSERR, GST_host_list, GST_queue_host_registration(), hash_hosts(), RegisteredHostContext::host, Slave::host_id, host_registration_comp(), RegisteredHostContext::reg_host, Slave::reghost_map, reghost_match_iterator(), RegisteredHostContext::RHC_DONE, RegisteredHostContext::RHC_INIT, and RegisteredHostContext::state.

Referenced by forward_overlay_connect().

1341 {
1342  struct GNUNET_HashCode hash;
1343  struct RegisteredHostContext *rhc;
1344 
1345  rhc = GNUNET_new(struct RegisteredHostContext);
1346  rhc->reg_host = host;
1347  rhc->host = GST_host_list[slave->host_id];
1348  GNUNET_assert(NULL != rhc->reg_host);
1349  GNUNET_assert(NULL != rhc->host);
1350  rhc->state = RHC_INIT;
1351  hash = hash_hosts(rhc->reg_host, rhc->host);
1352  if ((GNUNET_NO ==
1354  &hash)) ||
1355  (GNUNET_SYSERR !=
1357  &hash,
1359  &rhc)))
1360  {
1361  /* create and add a new registerd host context */
1362  /* add the focc to its queue */
1364  &hash,
1365  rhc,
1369  rhc,
1370  rhc->reg_host);
1371  }
1372  else
1373  {
1374  /* rhc is now set to the existing one from the hash map by
1375  * reghost_match_iterator() */
1376  /* if queue is empty then ignore creating focc and proceed with normal
1377  * forwarding */
1378  if (RHC_DONE == rhc->state)
1379  return NULL;
1380  }
1381  return rhc;
1382 }
struct GNUNET_CONTAINER_MultiHashMap * reghost_map
Hashmap to hold Registered host contexts.
This context information will be created for each host that is registered at slave controllers during...
static struct GNUNET_HashCode hash_hosts(struct GNUNET_TESTBED_Host *reg_host, struct GNUNET_TESTBED_Host *host)
Function to generate the hashcode corresponding to a RegisteredHostContext.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
void GST_queue_host_registration(struct Slave *slave, GNUNET_TESTBED_HostRegistrationCompletion cb, void *cb_cls, struct GNUNET_TESTBED_Host *host)
Adds a host registration's request to a slave's registration queue.
#define GNUNET_NO
Definition: gnunet_common.h:78
#define GNUNET_new(type)
Allocate a struct or union of the given type.
int GNUNET_CONTAINER_multihashmap_contains(const struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key)
Check if the map contains any value under the given key (including values that are NULL)...
struct GNUNET_TESTBED_Host * host
The host of the controller which has to connect to the above rhost.
struct GNUNET_TESTBED_Host ** GST_host_list
Array of hosts.
A 512-bit hashcode.
enum RegisteredHostContext::RHCState state
#define GNUNET_SYSERR
Definition: gnunet_common.h:76
struct GNUNET_TESTBED_Host * reg_host
The host which is being registered.
int GNUNET_CONTAINER_multihashmap_put(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, void *value, enum GNUNET_CONTAINER_MultiHashMapOption opt)
Store a key-value pair in the map.
static int reghost_match_iterator(void *cls, const struct GNUNET_HashCode *key, void *value)
Iterator to match a registered host context.
Allow multiple values with the same key.
int GNUNET_CONTAINER_multihashmap_get_multiple(struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key, GNUNET_CONTAINER_MulitHashMapIteratorCallback it, void *it_cls)
Iterate over all entries in the map that match a particular key.
uint32_t host_id
The id of the host this controller is running on.
State where we attempt to do the overlay connection again.
static void host_registration_comp(void *cls, const char *emsg)
Callback which will be called after a host registration succeeded or failed.
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◆ forward_overlay_connect()

static void forward_overlay_connect ( const struct GNUNET_TESTBED_OverlayConnectMessage msg,
struct GNUNET_SERVICE_Client client 
)
static

Forwards the overlay connect request to a slave controller.

Before forwarding, any hosts which are needed to be known by the slave controller to execute the overlay connect request are registered at slave.

Parameters
msgthe overlay connect request message to be forwarded
clientthe client to which the status of the forwarded request has to be notified

Definition at line 1395 of file gnunet-service-testbed_oc.c.

References ForwardedOperationContext::client, ForwardedOverlayConnectContext::client, Route::dest, Peer::details, RegisteredHostContext::focc_dll_head, RegisteredHostContext::focc_dll_tail, fopcq_head, fopcq_tail, GNUNET_assert, GNUNET_CONTAINER_DLL_insert_tail, GNUNET_copy_message(), GNUNET_new, GNUNET_ntohll(), GNUNET_SCHEDULER_add_delayed(), GNUNET_TESTBED_forward_operation_msg_(), GNUNET_YES, GST_find_dest_route(), GST_forwarded_operation_reply_relay(), GST_forwarded_operation_timeout(), GST_host_list, GST_peer_list, GST_timeout, GNUNET_TESTBED_OverlayConnectMessage::header, Peer::is_remote, LOG_DEBUG, OP_OVERLAY_CONNECT, ForwardedOperationContext::opc, ForwardedOperationContext::operation_id, ForwardedOverlayConnectContext::operation_id, GNUNET_TESTBED_OverlayConnectMessage::operation_id, ForwardedOverlayConnectContext::orig_msg, peer, ForwardedOverlayConnectContext::peer1, GNUNET_TESTBED_OverlayConnectMessage::peer1, ForwardedOverlayConnectContext::peer2, GNUNET_TESTBED_OverlayConnectMessage::peer2, ForwardedOverlayConnectContext::peer2_host_id, GNUNET_TESTBED_OverlayConnectMessage::peer2_host_id, register_host(), Peer::remote, ForwardedOverlayConnectContext::rhc, ForwardedOperationContext::timeout_task, ForwardedOperationContext::type, VALID_HOST_ID, and VALID_PEER_ID.

Referenced by handle_overlay_connect().

1397 {
1398  struct ForwardedOperationContext *fopc;
1399  struct Route *route_to_peer2_host;
1400  struct Route *route_to_peer1_host;
1401  struct Peer *peer;
1402  struct RegisteredHostContext *rhc;
1403  struct ForwardedOverlayConnectContext *focc;
1404  uint64_t op_id;
1405  uint32_t peer2_host_id;
1406  uint32_t p1;
1407  uint32_t p2;
1408 
1409  p1 = ntohl(msg->peer1);
1410  p2 = ntohl(msg->peer2);
1411  op_id = GNUNET_ntohll(msg->operation_id);
1412  peer2_host_id = ntohl(msg->peer2_host_id);
1414  GNUNET_assert(VALID_HOST_ID(peer2_host_id));
1415  peer = GST_peer_list[p1];
1417  LOG_DEBUG("0x%llx: Forwarding overlay connect\n", op_id);
1418  route_to_peer2_host = GST_find_dest_route(peer2_host_id);
1419  route_to_peer1_host = GST_find_dest_route
1420  (peer->details.remote.remote_host_id);
1421  GNUNET_assert(NULL != route_to_peer1_host);
1422  if ((NULL != route_to_peer2_host) &&
1423  (route_to_peer1_host->dest == route_to_peer2_host->dest))
1424  goto forward;
1425  /* Peer2 is either with us OR peer1 and peer2 can be reached through
1426  different subtrees OR peer2 is on a subtree unknown to us */
1427  if (NULL != (rhc = register_host(peer->details.remote.slave,
1428  GST_host_list[peer2_host_id])))
1429  {
1430  LOG_DEBUG("Queueing forwarding FOCC for connecting peers %u and %u\n", p1, p2);
1432  focc->rhc = rhc;
1433  focc->peer1 = p1;
1434  focc->peer2 = p2;
1435  focc->peer2_host_id = peer2_host_id;
1436  focc->orig_msg = GNUNET_copy_message(&msg->header);
1437  focc->operation_id = op_id;
1438  focc->client = client;
1440  rhc->focc_dll_tail,
1441  focc);
1442  return;
1443  }
1444 
1445 forward:
1446  LOG_DEBUG("Forwarding without FOCC for connecting peers %u and %u\n", p1, p2);
1447  fopc = GNUNET_new(struct ForwardedOperationContext);
1448  fopc->client = client;
1449  fopc->operation_id = op_id;
1450  fopc->type = OP_OVERLAY_CONNECT;
1451  fopc->opc =
1453  slave->controller, op_id,
1454  &msg->header,
1456  fopc);
1457  fopc->timeout_task =
1460  fopc);
1462  fopcq_tail,
1463  fopc);
1464 }
struct GNUNET_SCHEDULER_Task * timeout_task
Task ID for the timeout task.
struct ForwardedOverlayConnectContext * focc_dll_head
Head of the ForwardedOverlayConnectContext DLL.
This context information will be created for each host that is registered at slave controllers during...
int is_remote
Is this peer locally created?
struct GNUNET_MessageHeader * orig_msg
A copy of the original overlay connect message.
struct Peer::@69::@71 remote
struct GNUNET_SERVICE_Client * client
The client handle.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define VALID_PEER_ID(id)
Condition to check if peer id is valid.
struct OperationContext * opc
The generated operation context.
struct ForwardedOverlayConnectContext * focc_dll_tail
Tail of the ForwardedOverlayConnectContext DLL.
struct Peer ** GST_peer_list
A list of peers we know about.
uint64_t operation_id
Operation ID that is used to identify this operation.
Definition: testbed.h:378
#define GNUNET_new(type)
Allocate a struct or union of the given type.
void GST_forwarded_operation_reply_relay(void *cls, const struct GNUNET_MessageHeader *msg)
Callback to relay the reply msg of a forwarded operation back to the client.
void GST_forwarded_operation_timeout(void *cls)
Task to free resources when forwarded operation has been timed out.
uint32_t peer2
The id of peer 2.
uint32_t peer2
Unique ID for the second peer.
Definition: testbed.h:383
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1237
struct ForwardedOperationContext * fopcq_head
DLL head for forwarded operation contexts.
uint64_t operation_id
The id of the operation which created this context information.
uint32_t peer1
Unique ID for the first peer.
Definition: testbed.h:373
struct GNUNET_TESTBED_Host ** GST_host_list
Array of hosts.
enum OperationType type
The type of the operation which is forwarded.
Context information to used during operations which forward the overlay connect message.
uint32_t peer2_host_id
The ID of the host which runs peer2.
Definition: testbed.h:388
A routing entry.
struct Route * GST_find_dest_route(uint32_t host_id)
Finds the route with directly connected host as destination through which the destination host can be...
static struct RegisteredHostContext * register_host(struct Slave *slave, struct GNUNET_TESTBED_Host *host)
Checks if the given host is registered at the given slave.
uint32_t peer2_host_id
Id of the host where peer2 is running.
struct GNUNET_TESTBED_Peer * peer
The peer associated with this model.
Overlay connection operation.
Definition: testbed_api.h:78
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
struct OperationContext * GNUNET_TESTBED_forward_operation_msg_(struct GNUNET_TESTBED_Controller *controller, uint64_t operation_id, const struct GNUNET_MessageHeader *msg, GNUNET_MQ_MessageCallback cc, void *cc_cls)
Sends the given message as an operation.
Definition: testbed_api.c:1362
#define VALID_HOST_ID(id)
Condition to check if host id is valid.
struct ForwardedOperationContext * fopcq_tail
DLL tail for forwarded operation contexts.
struct GNUNET_MessageHeader header
Type is GNUNET_MESSAGE_TYPE_TESTBED_OVERLAY_CONNECT.
Definition: testbed.h:368
struct GNUNET_TIME_Relative GST_timeout
Timeout for operations which may take some time.
union Peer::@69 details
struct GNUNET_SERVICE_Client * client
The client to which we have to reply.
Information about preferences and sessions we track per peer.
struct RegisteredHostContext * rhc
Which host does this FOCC belong to?
uint64_t operation_id
The id of the operation that has been forwarded.
#define GNUNET_YES
Definition: gnunet_common.h:77
Context information for operations forwarded to subcontrollers.
uint32_t dest
destination host
#define LOG_DEBUG(...)
Debug logging shorthand.
uint64_t GNUNET_ntohll(uint64_t n)
Convert unsigned 64-bit integer to host byte order.
Definition: common_endian.c:48
struct GNUNET_MessageHeader * GNUNET_copy_message(const struct GNUNET_MessageHeader *msg)
Create a copy of the given message.
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◆ p2_controller_connect_cb()

static void p2_controller_connect_cb ( void *  cls,
struct GNUNET_TESTBED_Controller c 
)
static

Callback called when a connection to the controller of peer2 has been established.

Parameters
clsthe overlay connect contexts
chandle to the controller connection

Definition at line 1475 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::emsg, GNUNET_asprintf(), GNUNET_assert, GNUNET_free_non_null, GNUNET_htonll(), GNUNET_MESSAGE_TYPE_TESTBED_GET_PEER_INFORMATION, GNUNET_TESTBED_forward_operation_msg_(), GNUNET_TESTBED_PeerGetConfigurationMessage::header, RemotePeer2Context::ncn, OCC_TYPE_LOCAL, OverlayConnectContext::op_id, RemotePeer2Context::opc, GNUNET_TESTBED_PeerGetConfigurationMessage::operation_id, OverlayConnectContext::other_peer_id, overlay_connect_get_config(), RemotePeer2Context::p2c, OverlayConnectContext::p2ctx, GNUNET_TESTBED_PeerGetConfigurationMessage::peer_id, OverlayConnectContext::remote, GNUNET_MessageHeader::size, OverlayConnectContext::type, and GNUNET_MessageHeader::type.

Referenced by handle_overlay_connect().

1477 {
1478  struct OverlayConnectContext *occ = cls;
1479  struct RemotePeer2Context *rp2c;
1481 
1483  rp2c = &occ->p2ctx.remote;
1484  rp2c->ncn = NULL;
1485  rp2c->p2c = c;
1486  cmsg.header.size =
1487  htons(sizeof(struct GNUNET_TESTBED_PeerGetConfigurationMessage));
1488  cmsg.header.type =
1490  cmsg.peer_id = htonl(occ->other_peer_id);
1491  cmsg.operation_id = GNUNET_htonll(occ->op_id);
1492  rp2c->opc =
1494  occ->op_id,
1495  &cmsg.header,
1497  occ);
1498  GNUNET_free_non_null(occ->emsg);
1499  GNUNET_asprintf(&occ->emsg,
1500  "0x%llx: Timeout while getting peer identity of peer "
1501  "with id: %u",
1502  occ->op_id,
1503  occ->other_peer_id);
1504 }
uint64_t op_id
The id of the operation responsible for creating this context.
struct NeighbourConnectNotification * ncn
Notification handle acquire to connect to a remote controller.
Message sent from client to testing service to obtain the configuration of a peer.
Definition: testbed.h:563
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
Context data for operations on second peer in remote overlay connection contexts. ...
struct RemotePeer2Context remote
Context information to be used if the second peer is remote.
char * emsg
The error message we send if this overlay connect operation has timed out.
struct GNUNET_TESTBED_Controller * p2c
Controller of peer 2; If OCC_TYPE_REMOTE_LATERAL is the type of overlay connection then this can be N...
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
enum OverlayConnectContextType type
The type of this context information.
static void overlay_connect_get_config(void *cls, const struct GNUNET_MessageHeader *msg)
Callback to be called when forwarded get peer config operation as part of overlay connect is successf...
This type is used if the overlay connection is local i.e.
uint64_t GNUNET_htonll(uint64_t n)
Convert unsigned 64-bit integer to network byte order.
Definition: common_endian.c:35
#define GNUNET_MESSAGE_TYPE_TESTBED_GET_PEER_INFORMATION
Message to get a peer's information.
struct OperationContext * GNUNET_TESTBED_forward_operation_msg_(struct GNUNET_TESTBED_Controller *controller, uint64_t operation_id, const struct GNUNET_MessageHeader *msg, GNUNET_MQ_MessageCallback cc, void *cc_cls)
Sends the given message as an operation.
Definition: testbed_api.c:1362
uint32_t other_peer_id
The id of the second peer which has to connect to the first peer.
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
struct OperationContext * opc
Operation context for the suboperation we start to get the identity of the second peer...
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◆ handle_overlay_connect()

void handle_overlay_connect ( void *  cls,
const struct GNUNET_TESTBED_OverlayConnectMessage msg 
)

Handler for GNUNET_MESSAGE_TYPE_TESTBED_OVERLAY_CONNECT messages.

Parameters
clsidentification of the client
msgthe actual message

Definition at line 1514 of file gnunet-service-testbed_oc.c.

References OverlayConnectContext::cgh_ch, OverlayConnectContext::client, Peer::details, OverlayConnectContext::emsg, forward_overlay_connect(), GNUNET_asprintf(), GNUNET_assert, GNUNET_break, GNUNET_CONTAINER_DLL_insert_tail, GNUNET_ERROR_TYPE_WARNING, GNUNET_free, GNUNET_new, GNUNET_ntohll(), GNUNET_SCHEDULER_add_delayed(), GNUNET_SERVICE_client_continue(), GNUNET_SERVICE_client_drop(), GNUNET_TESTING_peer_get_identity(), GNUNET_YES, GST_connection_pool_get_handle(), GST_CONNECTIONPOOL_SERVICE_CORE, GST_create_neighbour(), GST_get_neighbour(), GST_host_list, GST_neighbour_get_connection(), GST_peer_list, GST_timeout, Peer::id, Peer::is_remote, Peer::local, LOG, LOG_DEBUG, RemotePeer2Context::ncn, occ_cache_get_handle_core_cb(), OCC_TYPE_LOCAL, OCC_TYPE_REMOTE_LATERAL, OCC_TYPE_REMOTE_SLAVE, OverlayConnectContext::op_id, GNUNET_TESTBED_OverlayConnectMessage::operation_id, OverlayConnectContext::other_peer_id, OverlayConnectContext::other_peer_identity, overlay_connect_notify(), p2_controller_connect_cb(), RemotePeer2Context::p2c, OverlayConnectContext::p2ctx, RemotePeer2Context::p2n, peer, OverlayConnectContext::peer, GNUNET_TESTBED_OverlayConnectMessage::peer1, GNUNET_TESTBED_OverlayConnectMessage::peer2, GNUNET_TESTBED_OverlayConnectMessage::peer2_host_id, Peer::reference_cnt, Peer::remote, OverlayConnectContext::remote, timeout_overlay_connect(), OverlayConnectContext::timeout_task, OverlayConnectContext::type, VALID_HOST_ID, and VALID_PEER_ID.

1516 {
1517  struct GNUNET_SERVICE_Client *client = cls;
1518  struct Peer *peer;
1519  struct Peer *peer2;
1520  struct OverlayConnectContext *occ;
1521  struct Neighbour *p2n;
1522  uint64_t operation_id;
1523  uint32_t p1;
1524  uint32_t p2;
1525  uint32_t peer2_host_id;
1526 
1527  p1 = ntohl(msg->peer1);
1528  p2 = ntohl(msg->peer2);
1529  if (!VALID_PEER_ID(p1))
1530  {
1531  GNUNET_break(0);
1533  return;
1534  }
1535  peer = GST_peer_list[p1];
1536  operation_id = GNUNET_ntohll(msg->operation_id);
1537  LOG_DEBUG
1538  ("Received overlay connect for peers %u and %u with op id: 0x%llx\n",
1539  p1,
1540  p2,
1541  operation_id);
1542  peer2_host_id = ntohl(msg->peer2_host_id);
1543  if (GNUNET_YES == peer->is_remote)
1544  {
1545  if (!VALID_HOST_ID(peer2_host_id))
1546  {
1547  GNUNET_break(0);
1549  return;
1550  }
1551  forward_overlay_connect(msg, client);
1553  return;
1554  }
1555  p2n = NULL;
1556  occ = GNUNET_new(struct OverlayConnectContext);
1557  occ->type = OCC_TYPE_LOCAL;
1558  if (!VALID_PEER_ID(p2)) /* May be peer2 is on a another controller */
1559  {
1560  if (NULL == (p2n = GST_get_neighbour(peer2_host_id)))
1561  {
1562  if (!VALID_HOST_ID(peer2_host_id))
1563  {
1564  GNUNET_break(0);
1566  "0x%llx: Peer %u's host not in our neighbours list\n",
1567  operation_id, p2);
1569  GNUNET_free(occ);
1570  return;
1571  }
1572  p2n = GST_create_neighbour(GST_host_list[peer2_host_id]);
1573  }
1575  occ->p2ctx.remote.p2n = p2n;
1576  }
1577  else if (GNUNET_YES == GST_peer_list[p2]->is_remote)
1578  {
1579  occ->type = OCC_TYPE_REMOTE_SLAVE;
1580  occ->p2ctx.remote.p2c = GST_peer_list[p2]->details.remote.slave->controller;
1581  }
1583  occq_tail,
1584  occ);
1585  occ->client = client;
1586  occ->other_peer_id = p2;
1588  occ->peer = GST_peer_list[p1];
1589  occ->op_id = operation_id;
1590  GNUNET_assert(NULL == occ->timeout_task);
1591  occ->timeout_task =
1594  occ);
1595  switch (occ->type)
1596  {
1598  GNUNET_asprintf(&occ->emsg,
1599  "0x%llx: Timeout while acquiring connection to peer %u's "
1600  "host: %u\n",
1601  occ->op_id,
1602  occ->other_peer_id,
1603  peer2_host_id);
1604  occ->p2ctx.remote.ncn
1607  occ);
1608  break;
1609 
1610  case OCC_TYPE_REMOTE_SLAVE:
1612  occ->p2ctx.remote.p2c);
1613  break;
1614 
1615  case OCC_TYPE_LOCAL:
1616  peer2 = GST_peer_list[occ->other_peer_id];
1617  peer2->reference_cnt++;
1619  &occ->other_peer_identity);
1620  GNUNET_asprintf(&occ->emsg,
1621  "0x%llx: Timeout while connecting to CORE of peer with "
1622  "id: %u",
1623  occ->op_id,
1624  occ->peer->id);
1625  occ->cgh_ch =
1627  occ->peer->details.local.cfg,
1630  &occ->other_peer_identity,
1631  &overlay_connect_notify, occ);
1632  break;
1633  }
1635 }
A connected controller which is not our child.
static void occ_cache_get_handle_core_cb(void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *my_identity, const struct GNUNET_CONFIGURATION_Handle *cfg)
Callback from cache with needed CORE handle set.
int is_remote
Is this peer locally created?
struct NeighbourConnectNotification * ncn
Notification handle acquire to connect to a remote controller.
uint64_t op_id
The id of the operation responsible for creating this context.
struct Peer::@69::@71 remote
Type to be used when the first peer is local and the other peer is on a controller which is not start...
struct GST_ConnectionPool_GetHandle * cgh_ch
The GST_ConnectionPool_GetHandle for registering callback to notify CORE level peer connects and to g...
struct GNUNET_SCHEDULER_Task * timeout_task
The id of the overlay connect timeout task.
Context information for connecting 2 peers in overlay.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
uint32_t id
Our local reference id for this peer.
#define VALID_PEER_ID(id)
Condition to check if peer id is valid.
struct Peer ** GST_peer_list
A list of peers we know about.
uint64_t operation_id
Operation ID that is used to identify this operation.
Definition: testbed.h:378
#define LOG(kind,...)
Redefine LOG with a changed log component string.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct RemotePeer2Context remote
Context information to be used if the second peer is remote.
char * emsg
The error message we send if this overlay connect operation has timed out.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur...
static void timeout_overlay_connect(void *cls)
Task which will be run when overlay connect request has been timed out.
struct GNUNET_SERVICE_Client * client
The client which has requested for overlay connection.
Handle to a client that is connected to a service.
Definition: service.c:246
static void overlay_connect_notify(void *cls, const struct GNUNET_PeerIdentity *new_peer)
Function called to notify transport users that another peer connected to us.
struct GNUNET_TESTBED_Controller * p2c
Controller of peer 2; If OCC_TYPE_REMOTE_LATERAL is the type of overlay connection then this can be N...
static struct OverlayConnectContext * occq_tail
DLL tail for OverlayConnectContext DLL.
uint32_t peer2
Unique ID for the second peer.
Definition: testbed.h:383
int GNUNET_asprintf(char **buf, const char *format,...)
Like asprintf, just portable.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1237
struct Peer::@69::@70 local
struct Peer * peer
the first peer which is to expect an overlay connection from the second peer.
uint32_t peer1
Unique ID for the first peer.
Definition: testbed.h:373
struct GNUNET_TESTBED_Host ** GST_host_list
Array of hosts.
uint32_t peer2_host_id
The ID of the host which runs peer2.
Definition: testbed.h:388
enum OverlayConnectContextType type
The type of this context information.
struct Neighbour * p2n
The neighbour handle.
struct GNUNET_PeerIdentity other_peer_identity
The peer identity of the other peer.
void GNUNET_SERVICE_client_drop(struct GNUNET_SERVICE_Client *c)
Ask the server to disconnect from the given client.
Definition: service.c:2315
uint32_t reference_cnt
References to peers are using in forwarded overlay contexts and remote overlay connect contexts...
This type is used if the overlay connection is local i.e.
static struct OverlayConnectContext * occq_head
DLL head for OverlayConnectContext DLL - to be used to clean up during shutdown.
struct GNUNET_TESTBED_Peer * peer
The peer associated with this model.
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
Type to be used when the first peer is local and the other peer is on a slave controller started by u...
#define VALID_HOST_ID(id)
Condition to check if host id is valid.
uint32_t other_peer_id
The id of the second peer which has to connect to the first peer.
static void forward_overlay_connect(const struct GNUNET_TESTBED_OverlayConnectMessage *msg, struct GNUNET_SERVICE_Client *client)
Forwards the overlay connect request to a slave controller.
struct GNUNET_TIME_Relative GST_timeout
Timeout for operations which may take some time.
union Peer::@69 details
union OverlayConnectContext::@72 p2ctx
Context information for operations on the second peer.
Information about preferences and sessions we track per peer.
struct GST_ConnectionPool_GetHandle * GST_connection_pool_get_handle(unsigned int peer_id, const struct GNUNET_CONFIGURATION_Handle *cfg, enum GST_ConnectionPool_Service service, GST_connection_pool_connection_ready_cb cb, void *cb_cls, const struct GNUNET_PeerIdentity *target, GST_connection_pool_peer_connect_notify connect_notify_cb, void *connect_notify_cb_cls)
Get a connection handle to service.
void GNUNET_TESTING_peer_get_identity(struct GNUNET_TESTING_Peer *peer, struct GNUNET_PeerIdentity *id)
Obtain the peer identity from a peer handle.
Definition: testing.c:1333
#define GNUNET_YES
Definition: gnunet_common.h:77
static void p2_controller_connect_cb(void *cls, struct GNUNET_TESTBED_Controller *c)
Callback called when a connection to the controller of peer2 has been established.
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2234
#define LOG_DEBUG(...)
Debug logging shorthand.
uint64_t GNUNET_ntohll(uint64_t n)
Convert unsigned 64-bit integer to host byte order.
Definition: common_endian.c:48
#define GNUNET_free(ptr)
Wrapper around free.
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◆ cleanup_rocc()

static void cleanup_rocc ( struct RemoteOverlayConnectCtx rocc)
static

Function to cleanup RemoteOverlayConnectCtx and any associated tasks with it.

Parameters
roccthe RemoteOverlayConnectCtx

Definition at line 1645 of file gnunet-service-testbed_oc.c.

References RemoteOverlayConnectCtx::attempt_connect_task_id, ConnectivitySuggestContext::cgh_p2_ats, ConnectivitySuggestContext::cgh_p2_th, ConnectivitySuggestContext::csh, Peer::destroy_flag, GNUNET_assert, GNUNET_ATS_connectivity_suggest_cancel(), GNUNET_CONTAINER_DLL_remove, GNUNET_free, GNUNET_free_non_null, GNUNET_SCHEDULER_cancel(), GNUNET_TRANSPORT_offer_hello_cancel(), GNUNET_YES, GST_connection_pool_get_handle_done(), GST_destroy_peer(), RemoteOverlayConnectCtx::hello, LOG_DEBUG, RemoteOverlayConnectCtx::ohh, RemoteOverlayConnectCtx::op_id, RemoteOverlayConnectCtx::peer, Peer::reference_cnt, RemoteOverlayConnectCtx::tcc, and RemoteOverlayConnectCtx::timeout_rocc_task_id.

Referenced by cache_transport_peer_connect_notify(), GST_free_roccq(), rocc_cache_get_handle_transport_cb(), and timeout_rocc_task().

1646 {
1647  LOG_DEBUG("0x%llx: Cleaning up rocc\n",
1648  rocc->op_id);
1649  if (NULL != rocc->attempt_connect_task_id)
1651  if (NULL != rocc->timeout_rocc_task_id)
1653  if (NULL != rocc->ohh)
1655  if (NULL != rocc->tcc.csh)
1659  GNUNET_assert(rocc->peer->reference_cnt > 0);
1660  rocc->peer->reference_cnt--;
1661  if ((GNUNET_YES == rocc->peer->destroy_flag) &&
1662  (0 == rocc->peer->reference_cnt))
1663  GST_destroy_peer(rocc->peer);
1664  GNUNET_free_non_null(rocc->hello);
1666  roccq_tail,
1667  rocc);
1668  GNUNET_free(rocc);
1669 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
static struct RemoteOverlayConnectCtx * roccq_head
DLL head for RequectOverlayConnectContext DLL - to be used to clean up during shutdown.
uint32_t destroy_flag
While destroying a peer, due to the fact that there could be references to this peer, we delay the peer destroy to a further time.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
struct ConnectivitySuggestContext tcc
The transport try connect context.
#define GNUNET_free_non_null(ptr)
Free the memory pointed to by ptr if ptr is not NULL.
void GNUNET_ATS_connectivity_suggest_cancel(struct GNUNET_ATS_ConnectivitySuggestHandle *sh)
We no longer care about being connected to a peer.
struct GNUNET_TRANSPORT_OfferHelloHandle * ohh
The handle for offering HELLO.
struct GNUNET_SCHEDULER_Task * timeout_rocc_task_id
Task to timeout RequestOverlayConnect.
static struct RemoteOverlayConnectCtx * roccq_tail
DLL tail for RequectOverlayConnectContext DLL.
uint64_t op_id
The id of the operation responsible for creating this context.
uint32_t reference_cnt
References to peers are using in forwarded overlay contexts and remote overlay connect contexts...
void GNUNET_TRANSPORT_offer_hello_cancel(struct GNUNET_TRANSPORT_OfferHelloHandle *ohh)
Cancel the request to transport to offer the HELLO message.
struct GNUNET_ATS_ConnectivitySuggestHandle * csh
The ATS handle for the connectivity suggestion.
void GST_destroy_peer(struct Peer *peer)
Function to destroy a peer.
struct GNUNET_MessageHeader * hello
Peer A's HELLO.
struct GST_ConnectionPool_GetHandle * cgh_p2_th
The GetCacheHandle for the peer2's transport handle (used to offer the HELLO to the peer)...
#define GNUNET_YES
Definition: gnunet_common.h:77
void GST_connection_pool_get_handle_done(struct GST_ConnectionPool_GetHandle *gh)
Relinquish a GST_ConnectionPool_GetHandle object.
struct Peer * peer
The peer handle of peer B.
#define LOG_DEBUG(...)
Debug logging shorthand.
#define GNUNET_free(ptr)
Wrapper around free.
struct GST_ConnectionPool_GetHandle * cgh_p2_ats
The GetCacheHandle for the peer2's ATS handle.
struct GNUNET_SCHEDULER_Task * attempt_connect_task_id
Task for offering HELLO of A to B and doing try_connect.
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956
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◆ timeout_rocc_task()

static void timeout_rocc_task ( void *  cls)
static

Task to timeout rocc and cleanit up.

Parameters
clsthe RemoteOverlayConnectCtx

Definition at line 1678 of file gnunet-service-testbed_oc.c.

References cleanup_rocc(), GNUNET_assert, LOG_DEBUG, RemoteOverlayConnectCtx::op_id, and RemoteOverlayConnectCtx::timeout_rocc_task_id.

Referenced by handle_remote_overlay_connect(), and rocc_cache_get_handle_transport_cb().

1679 {
1680  struct RemoteOverlayConnectCtx *rocc = cls;
1681 
1682  GNUNET_assert(rocc->timeout_rocc_task_id != NULL);
1683  rocc->timeout_rocc_task_id = NULL;
1684  LOG_DEBUG("0x%llx: rocc timed out\n",
1685  rocc->op_id);
1686  cleanup_rocc(rocc);
1687 }
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
static void cleanup_rocc(struct RemoteOverlayConnectCtx *rocc)
Function to cleanup RemoteOverlayConnectCtx and any associated tasks with it.
struct GNUNET_SCHEDULER_Task * timeout_rocc_task_id
Task to timeout RequestOverlayConnect.
uint64_t op_id
The id of the operation responsible for creating this context.
Context information for remote overlay connect operations.
#define LOG_DEBUG(...)
Debug logging shorthand.
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◆ cache_transport_peer_connect_notify()

static void cache_transport_peer_connect_notify ( void *  cls,
const struct GNUNET_PeerIdentity new_peer 
)
static

Function called to notify transport users that another peer connected to us.

Parameters
clsthe RemoteOverlayConnectContext
new_peerthe peer that connected

Definition at line 1698 of file gnunet-service-testbed_oc.c.

References RemoteOverlayConnectCtx::a_id, attempt_connect_task(), cleanup_rocc(), GNUNET_assert, GNUNET_i2s(), LOG_DEBUG, and RemoteOverlayConnectCtx::op_id.

Referenced by handle_remote_overlay_connect().

1700 {
1701  struct RemoteOverlayConnectCtx *rocc = cls;
1702 
1703  LOG_DEBUG("0x%llx: Request Overlay connect notify\n",
1704  rocc->op_id);
1705  GNUNET_assert(0 ==
1706  memcmp(new_peer, &rocc->a_id,
1707  sizeof(struct GNUNET_PeerIdentity)));
1708  LOG_DEBUG("0x%llx: Peer %s connected\n",
1709  rocc->op_id,
1710  GNUNET_i2s(&rocc->a_id));
1711  cleanup_rocc(rocc);
1712 }
struct GNUNET_PeerIdentity a_id
The peer identity of peer A.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
static void cleanup_rocc(struct RemoteOverlayConnectCtx *rocc)
Function to cleanup RemoteOverlayConnectCtx and any associated tasks with it.
uint64_t op_id
The id of the operation responsible for creating this context.
Context information for remote overlay connect operations.
The identity of the host (wraps the signing key of the peer).
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
#define LOG_DEBUG(...)
Debug logging shorthand.
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◆ attempt_connect_task()

static void attempt_connect_task ( void *  cls)
static

Task to offer the HELLO message to the peer and ask it to connect to the peer whose identity is in RemoteOverlayConnectCtx.

Parameters
clsthe RemoteOverlayConnectCtx

Definition at line 1759 of file gnunet-service-testbed_oc.c.

References RemoteOverlayConnectCtx::a_id, RemoteOverlayConnectCtx::attempt_connect_task_id, ConnectivitySuggestContext::cfg, GNUNET_assert, GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CRYPTO_random_u32(), GNUNET_i2s(), GNUNET_SCHEDULER_add_delayed(), GNUNET_TIME_relative_multiply(), GNUNET_TIME_UNIT_MILLISECONDS, GNUNET_TRANSPORT_offer_hello(), RemoteOverlayConnectCtx::hello, Peer::id, LOG_DEBUG, RemoteOverlayConnectCtx::ohh, RemoteOverlayConnectCtx::op_id, RemoteOverlayConnectCtx::peer, rocc_hello_sent_cb(), and RemoteOverlayConnectCtx::tcc.

Referenced by cache_transport_peer_connect_notify(), and rocc_cache_get_handle_transport_cb().

1760 {
1761  struct RemoteOverlayConnectCtx *rocc = cls;
1762 
1763  GNUNET_assert(NULL != rocc->attempt_connect_task_id);
1764  rocc->attempt_connect_task_id = NULL;
1765  LOG_DEBUG("0x%llx: Offering HELLO of peer %s to remote peer with id: %u\n",
1766  rocc->op_id,
1767  GNUNET_i2s(&rocc->a_id),
1768  rocc->peer->id);
1769  rocc->ohh =
1771  rocc->hello,
1773  rocc);
1774  if (NULL == rocc->ohh)
1775  rocc->attempt_connect_task_id =
1778  100 +
1781  &attempt_connect_task, rocc);
1782 }
struct GNUNET_PeerIdentity a_id
The peer identity of peer A.
static void attempt_connect_task(void *cls)
Task to offer the HELLO message to the peer and ask it to connect to the peer whose identity is in Re...
uint32_t GNUNET_CRYPTO_random_u32(enum GNUNET_CRYPTO_Quality mode, uint32_t i)
Produce a random value.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
uint32_t id
Our local reference id for this peer.
struct ConnectivitySuggestContext tcc
The transport try connect context.
struct GNUNET_TRANSPORT_OfferHelloHandle * ohh
The handle for offering HELLO.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1237
struct GNUNET_TIME_Relative GNUNET_TIME_relative_multiply(struct GNUNET_TIME_Relative rel, unsigned long long factor)
Multiply relative time by a given factor.
Definition: time.c:440
const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration of the peer from cache.
uint64_t op_id
The id of the operation responsible for creating this context.
#define GNUNET_TIME_UNIT_MILLISECONDS
One millisecond.
Context information for remote overlay connect operations.
static void rocc_hello_sent_cb(void *cls)
Task that is run when hello has been sent If tc->reason = GNUNET_SCHEDULER_REASON_TIMEOUT then sendin...
struct GNUNET_TRANSPORT_OfferHelloHandle * GNUNET_TRANSPORT_offer_hello(const struct GNUNET_CONFIGURATION_Handle *cfg, const struct GNUNET_MessageHeader *hello, GNUNET_SCHEDULER_TaskCallback cont, void *cont_cls)
Offer the transport service the HELLO of another peer.
struct GNUNET_MessageHeader * hello
Peer A's HELLO.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
struct Peer * peer
The peer handle of peer B.
#define LOG_DEBUG(...)
Debug logging shorthand.
No good quality of the operation is needed (i.e., random numbers can be pseudo-random).
struct GNUNET_SCHEDULER_Task * attempt_connect_task_id
Task for offering HELLO of A to B and doing try_connect.
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◆ rocc_hello_sent_cb()

static void rocc_hello_sent_cb ( void *  cls)
static

Task that is run when hello has been sent If tc->reason = GNUNET_SCHEDULER_REASON_TIMEOUT then sending HELLO failed; if GNUNET_SCHEDULER_REASON_READ_READY is succeeded.

Parameters
clsthe overlay connect context

Definition at line 1733 of file gnunet-service-testbed_oc.c.

References RemoteOverlayConnectCtx::a_id, RemoteOverlayConnectCtx::attempt_connect_task_id, ConnectivitySuggestContext::cgh_p2_ats, Peer::details, GNUNET_assert, GNUNET_i2s(), GST_connection_pool_get_handle(), GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY, Peer::id, Peer::local, LOG_DEBUG, occ_cache_get_handle_ats_rocc_cb(), RemoteOverlayConnectCtx::ohh, RemoteOverlayConnectCtx::op_id, RemoteOverlayConnectCtx::peer, and RemoteOverlayConnectCtx::tcc.

Referenced by attempt_connect_task().

1734 {
1735  struct RemoteOverlayConnectCtx *rocc = cls;
1736 
1737  rocc->ohh = NULL;
1738  GNUNET_assert(NULL == rocc->attempt_connect_task_id);
1739  LOG_DEBUG("0x%llx: HELLO of peer %s delivered to local peer with id: %u\n",
1740  rocc->op_id,
1741  GNUNET_i2s(&rocc->a_id),
1742  rocc->peer->id);
1743  rocc->tcc.cgh_p2_ats =
1745  rocc->peer->details.local.cfg,
1748  rocc, NULL, NULL, NULL);
1749 }
struct GNUNET_PeerIdentity a_id
The peer identity of peer A.
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
uint32_t id
Our local reference id for this peer.
struct ConnectivitySuggestContext tcc
The transport try connect context.
struct GNUNET_TRANSPORT_OfferHelloHandle * ohh
The handle for offering HELLO.
struct Peer::@69::@70 local
uint64_t op_id
The id of the operation responsible for creating this context.
Context information for remote overlay connect operations.
static void occ_cache_get_handle_ats_rocc_cb(void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *my_identity, const struct GNUNET_CONFIGURATION_Handle *cfg)
Callback from cache with needed ATS handle set.
union Peer::@69 details
struct GST_ConnectionPool_GetHandle * GST_connection_pool_get_handle(unsigned int peer_id, const struct GNUNET_CONFIGURATION_Handle *cfg, enum GST_ConnectionPool_Service service, GST_connection_pool_connection_ready_cb cb, void *cb_cls, const struct GNUNET_PeerIdentity *target, GST_connection_pool_peer_connect_notify connect_notify_cb, void *connect_notify_cb_cls)
Get a connection handle to service.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
struct Peer * peer
The peer handle of peer B.
#define LOG_DEBUG(...)
Debug logging shorthand.
struct GST_ConnectionPool_GetHandle * cgh_p2_ats
The GetCacheHandle for the peer2's ATS handle.
struct GNUNET_SCHEDULER_Task * attempt_connect_task_id
Task for offering HELLO of A to B and doing try_connect.
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◆ rocc_cache_get_handle_transport_cb()

static void rocc_cache_get_handle_transport_cb ( void *  cls,
struct GNUNET_CORE_Handle ch,
struct GNUNET_TRANSPORT_CoreHandle th,
struct GNUNET_ATS_ConnectivityHandle ac,
const struct GNUNET_PeerIdentity ignore_,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Callback from cache with needed handles set.

Parameters
clsthe closure passed to GST_cache_get_handle_transport()
chthe handle to CORE. Can be NULL if it is not requested
ththe handle to TRANSPORT. Can be NULL if it is not requested
acthe handle to ATS. Can be NULL if it is not requested
ignore_peer identity which is ignored in this callback

Definition at line 1795 of file gnunet-service-testbed_oc.c.

References RemoteOverlayConnectCtx::a_id, attempt_connect_task(), RemoteOverlayConnectCtx::attempt_connect_task_id, ConnectivitySuggestContext::cfg, cleanup_rocc(), GNUNET_i2s(), GNUNET_SCHEDULER_add_now(), GNUNET_TRANSPORT_core_get_mq(), Peer::id, LOG_DEBUG, RemoteOverlayConnectCtx::op_id, RemoteOverlayConnectCtx::peer, RemoteOverlayConnectCtx::tcc, ConnectivitySuggestContext::th_, timeout_rocc_task(), and RemoteOverlayConnectCtx::timeout_rocc_task_id.

Referenced by handle_remote_overlay_connect().

1801 {
1802  struct RemoteOverlayConnectCtx *rocc = cls;
1803 
1804  if (NULL == th)
1805  {
1806  rocc->timeout_rocc_task_id =
1808  return;
1809  }
1810  rocc->tcc.th_ = th;
1811  rocc->tcc.cfg = cfg;
1812  if (NULL !=
1814  &rocc->a_id))
1815  {
1816  LOG_DEBUG("0x%llx: Target peer %s already connected to local peer: %u\n",
1817  rocc->op_id,
1818  GNUNET_i2s(&rocc->a_id),
1819  rocc->peer->id);
1820  cleanup_rocc(rocc);
1821  return;
1822  }
1823  rocc->attempt_connect_task_id =
1825 }
struct GNUNET_PeerIdentity a_id
The peer identity of peer A.
static void attempt_connect_task(void *cls)
Task to offer the HELLO message to the peer and ask it to connect to the peer whose identity is in Re...
uint32_t id
Our local reference id for this peer.
struct ConnectivitySuggestContext tcc
The transport try connect context.
static void cleanup_rocc(struct RemoteOverlayConnectCtx *rocc)
Function to cleanup RemoteOverlayConnectCtx and any associated tasks with it.
struct GNUNET_SCHEDULER_Task * timeout_rocc_task_id
Task to timeout RequestOverlayConnect.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1264
const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration of the peer from cache.
uint64_t op_id
The id of the operation responsible for creating this context.
static struct GNUNET_CONFIGURATION_Handle * cfg
Our configuration.
Definition: gnunet-arm.c:104
Context information for remote overlay connect operations.
struct GNUNET_MQ_Handle * GNUNET_TRANSPORT_core_get_mq(struct GNUNET_TRANSPORT_CoreHandle *handle, const struct GNUNET_PeerIdentity *peer)
Checks if a given peer is connected to us and get the message queue.
static void timeout_rocc_task(void *cls)
Task to timeout rocc and cleanit up.
struct GNUNET_TRANSPORT_CoreHandle * th_
The transport handle obtained from cache.
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
struct Peer * peer
The peer handle of peer B.
#define LOG_DEBUG(...)
Debug logging shorthand.
struct GNUNET_SCHEDULER_Task * attempt_connect_task_id
Task for offering HELLO of A to B and doing try_connect.
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◆ check_remote_overlay_connect()

int check_remote_overlay_connect ( void *  cls,
const struct GNUNET_TESTBED_RemoteOverlayConnectMessage msg 
)

Check GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT messages.

Parameters
clsidentification of the client
msgthe actual message
Returns
GNUNET_OK if msg is well-formed

Definition at line 1836 of file gnunet-service-testbed_oc.c.

References GNUNET_break, GNUNET_break_op, GNUNET_MESSAGE_TYPE_HELLO, GNUNET_OK, GNUNET_SYSERR, GST_peer_list, GST_peer_list_size, GNUNET_TESTBED_RemoteOverlayConnectMessage::header, GNUNET_TESTBED_RemoteOverlayConnectMessage::hello, GNUNET_TESTBED_RemoteOverlayConnectMessage::peer, peer_id, GNUNET_MessageHeader::size, and GNUNET_MessageHeader::type.

1838 {
1839  uint32_t peer_id;
1840  uint16_t msize;
1841  uint16_t hsize;
1842 
1843  msize = ntohs(msg->header.size);
1844  if (GNUNET_MESSAGE_TYPE_HELLO != ntohs(msg->hello->type))
1845  {
1846  GNUNET_break(0);
1847  return GNUNET_SYSERR;
1848  }
1849  hsize = ntohs(msg->hello->size);
1850  if ((sizeof(struct GNUNET_TESTBED_RemoteOverlayConnectMessage) + hsize) != msize)
1851  {
1852  GNUNET_break(0);
1853  return GNUNET_SYSERR;
1854  }
1855  peer_id = ntohl(msg->peer);
1856  if ((peer_id >= GST_peer_list_size) ||
1857  (NULL == GST_peer_list[peer_id]))
1858  {
1859  GNUNET_break_op(0);
1860  return GNUNET_SYSERR;
1861  }
1862  return GNUNET_OK;
1863 }
Message sent from host controller of a peer(A) to the host controller of another peer(B) to request B...
Definition: testbed.h:396
struct Peer ** GST_peer_list
A list of peers we know about.
unsigned int GST_peer_list_size
The size of the peer list.
static char * peer_id
Option –peer.
Definition: gnunet-cadet.c:42
struct GNUNET_MessageHeader hello[0]
To be followed by the HELLO message of A.
Definition: testbed.h:420
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format...
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur...
uint16_t type
The type of the message (GNUNET_MESSAGE_TYPE_XXXX), in big-endian format.
uint32_t peer
The Unique ID of B.
Definition: testbed.h:405
#define GNUNET_break_op(cond)
Use this for assertion violations caused by other peers (i.e.
#define GNUNET_SYSERR
Definition: gnunet_common.h:76
#define GNUNET_MESSAGE_TYPE_HELLO
HELLO message with friend only flag used for communicating peer addresses.
struct GNUNET_MessageHeader header
Type is GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT.
Definition: testbed.h:400

◆ handle_remote_overlay_connect()

void handle_remote_overlay_connect ( void *  cls,
const struct GNUNET_TESTBED_RemoteOverlayConnectMessage msg 
)

Handler for GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT messages.

Parameters
clsidentification of the client
msgthe actual message

Definition at line 1873 of file gnunet-service-testbed_oc.c.

References RemoteOverlayConnectCtx::a_id, cache_transport_peer_connect_notify(), ConnectivitySuggestContext::cgh_p2_th, Peer::details, GNUNET_CONTAINER_DLL_insert_tail, GNUNET_copy_message(), GNUNET_i2s(), GNUNET_malloc, GNUNET_memcpy, GNUNET_new, GNUNET_ntohll(), GNUNET_SCHEDULER_add_delayed(), GNUNET_SERVICE_client_continue(), GNUNET_strlcpy(), GNUNET_TESTBED_queue_message_(), GNUNET_TESTING_peer_get_identity(), GNUNET_YES, GST_connection_pool_get_handle(), GST_CONNECTIONPOOL_SERVICE_TRANSPORT, GST_peer_list, GST_timeout, GNUNET_TESTBED_RemoteOverlayConnectMessage::header, RemoteOverlayConnectCtx::hello, GNUNET_TESTBED_RemoteOverlayConnectMessage::hello, Peer::is_remote, Peer::local, LOG_DEBUG, RemoteOverlayConnectCtx::op_id, GNUNET_TESTBED_RemoteOverlayConnectMessage::operation_id, peer, RemoteOverlayConnectCtx::peer, GNUNET_TESTBED_RemoteOverlayConnectMessage::peer, peer_id, GNUNET_TESTBED_RemoteOverlayConnectMessage::peer_identity, Peer::reference_cnt, Peer::remote, rocc_cache_get_handle_transport_cb(), GNUNET_MessageHeader::size, RemoteOverlayConnectCtx::tcc, timeout_rocc_task(), and RemoteOverlayConnectCtx::timeout_rocc_task_id.

1875 {
1876  struct GNUNET_SERVICE_Client *client = cls;
1877  struct RemoteOverlayConnectCtx *rocc;
1878  struct Peer *peer;
1879  struct GNUNET_PeerIdentity pid;
1880  static char pid_str[16];
1881  uint32_t peer_id;
1882  uint16_t hsize;
1883 
1884  hsize = ntohs(msg->hello->size);
1885  peer_id = ntohl(msg->peer);
1886  peer = GST_peer_list[peer_id];
1887  if (GNUNET_YES == peer->is_remote)
1888  {
1889  struct GNUNET_MessageHeader *msg2;
1890 
1891  msg2 = GNUNET_copy_message(&msg->header);
1892  GNUNET_TESTBED_queue_message_(peer->details.remote.slave->controller,
1893  msg2);
1895  return;
1896  }
1897  rocc = GNUNET_new(struct RemoteOverlayConnectCtx);
1898  rocc->op_id = GNUNET_ntohll(msg->operation_id);
1900  roccq_tail,
1901  rocc);
1902  rocc->a_id = msg->peer_identity;
1904  &pid);
1905  (void)GNUNET_strlcpy(pid_str,
1906  GNUNET_i2s(&pid),
1907  sizeof(pid_str));
1908  LOG_DEBUG("0x%llx: Remote overlay connect %s to peer %s with hello size: %u\n",
1909  rocc->op_id,
1910  pid_str,
1911  GNUNET_i2s(&rocc->a_id),
1912  hsize);
1913  rocc->peer = peer;
1914  rocc->peer->reference_cnt++;
1915  rocc->hello = GNUNET_malloc(hsize);
1916  GNUNET_memcpy(rocc->hello,
1917  msg->hello,
1918  hsize);
1919  rocc->tcc.cgh_p2_th =
1921  rocc->peer->details.local.cfg,
1924  rocc,
1925  &rocc->a_id,
1927  rocc);
1928  rocc->timeout_rocc_task_id =
1931  rocc);
1933 }
static struct RemoteOverlayConnectCtx * roccq_head
DLL head for RequectOverlayConnectContext DLL - to be used to clean up during shutdown.
int is_remote
Is this peer locally created?
struct GNUNET_PeerIdentity a_id
The peer identity of peer A.
struct Peer::@69::@71 remote
struct ConnectivitySuggestContext tcc
The transport try connect context.
struct Peer ** GST_peer_list
A list of peers we know about.
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
static char * peer_id
Option –peer.
Definition: gnunet-cadet.c:42
struct GNUNET_MessageHeader hello[0]
To be followed by the HELLO message of A.
Definition: testbed.h:420
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct GNUNET_PeerIdentity peer_identity
Identity of A.
Definition: testbed.h:415
uint16_t size
The length of the struct (in bytes, including the length field itself), in big-endian format...
Handle to a client that is connected to a service.
Definition: service.c:246
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1237
struct Peer::@69::@70 local
uint32_t peer
The Unique ID of B.
Definition: testbed.h:405
struct GNUNET_SCHEDULER_Task * timeout_rocc_task_id
Task to timeout RequestOverlayConnect.
static struct RemoteOverlayConnectCtx * roccq_tail
DLL tail for RequectOverlayConnectContext DLL.
uint64_t operation_id
The Operation ID that is used to identify this operation.
Definition: testbed.h:410
uint64_t op_id
The id of the operation responsible for creating this context.
uint32_t reference_cnt
References to peers are using in forwarded overlay contexts and remote overlay connect contexts...
static void rocc_cache_get_handle_transport_cb(void *cls, struct GNUNET_CORE_Handle *ch, struct GNUNET_TRANSPORT_CoreHandle *th, struct GNUNET_ATS_ConnectivityHandle *ac, const struct GNUNET_PeerIdentity *ignore_, const struct GNUNET_CONFIGURATION_Handle *cfg)
Callback from cache with needed handles set.
Context information for remote overlay connect operations.
struct GNUNET_TESTBED_Peer * peer
The peer associated with this model.
void GNUNET_TESTBED_queue_message_(struct GNUNET_TESTBED_Controller *controller, struct GNUNET_MessageHeader *msg)
Queues a message in send queue for sending to the service.
Definition: testbed_api.c:1328
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
The identity of the host (wraps the signing key of the peer).
struct GNUNET_TIME_Relative GST_timeout
Timeout for operations which may take some time.
union Peer::@69 details
Information about preferences and sessions we track per peer.
struct GST_ConnectionPool_GetHandle * GST_connection_pool_get_handle(unsigned int peer_id, const struct GNUNET_CONFIGURATION_Handle *cfg, enum GST_ConnectionPool_Service service, GST_connection_pool_connection_ready_cb cb, void *cb_cls, const struct GNUNET_PeerIdentity *target, GST_connection_pool_peer_connect_notify connect_notify_cb, void *connect_notify_cb_cls)
Get a connection handle to service.
void GNUNET_TESTING_peer_get_identity(struct GNUNET_TESTING_Peer *peer, struct GNUNET_PeerIdentity *id)
Obtain the peer identity from a peer handle.
Definition: testing.c:1333
struct GNUNET_MessageHeader * hello
Peer A's HELLO.
Header for all communications.
struct GST_ConnectionPool_GetHandle * cgh_p2_th
The GetCacheHandle for the peer2's transport handle (used to offer the HELLO to the peer)...
#define GNUNET_YES
Definition: gnunet_common.h:77
static void cache_transport_peer_connect_notify(void *cls, const struct GNUNET_PeerIdentity *new_peer)
Function called to notify transport users that another peer connected to us.
static void timeout_rocc_task(void *cls)
Task to timeout rocc and cleanit up.
static struct GNUNET_PeerIdentity pid
Identity of the peer we transmit to / connect to.
size_t GNUNET_strlcpy(char *dst, const char *src, size_t n)
Like strlcpy but portable.
Definition: strings.c:219
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
void GNUNET_SERVICE_client_continue(struct GNUNET_SERVICE_Client *c)
Continue receiving further messages from the given client.
Definition: service.c:2234
struct Peer * peer
The peer handle of peer B.
#define LOG_DEBUG(...)
Debug logging shorthand.
#define GNUNET_malloc(size)
Wrapper around malloc.
uint64_t GNUNET_ntohll(uint64_t n)
Convert unsigned 64-bit integer to host byte order.
Definition: common_endian.c:48
struct GNUNET_MessageHeader header
Type is GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT.
Definition: testbed.h:400
struct GNUNET_MessageHeader * GNUNET_copy_message(const struct GNUNET_MessageHeader *msg)
Create a copy of the given message.
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◆ GST_free_occq()

void GST_free_occq ( void  )

Clears all pending overlay connect contexts in queue.

Definition at line 1940 of file gnunet-service-testbed_oc.c.

References cleanup_occ().

Referenced by handle_shutdown_peers(), and shutdown_task().

1941 {
1942  struct OverlayConnectContext *occ;
1943 
1944  while (NULL != (occ = occq_head))
1945  cleanup_occ(occ);
1946 }
Context information for connecting 2 peers in overlay.
static void cleanup_occ(struct OverlayConnectContext *occ)
Cleanup overlay connect context structure.
static struct OverlayConnectContext * occq_head
DLL head for OverlayConnectContext DLL - to be used to clean up during shutdown.
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◆ GST_free_roccq()

void GST_free_roccq ( void  )

Clears all pending remote overlay connect contexts in queue.

Definition at line 1953 of file gnunet-service-testbed_oc.c.

References cleanup_rocc().

Referenced by handle_shutdown_peers(), and shutdown_task().

1954 {
1955  struct RemoteOverlayConnectCtx *rocc;
1956 
1957  while (NULL != (rocc = roccq_head))
1958  cleanup_rocc(rocc);
1959 }
static struct RemoteOverlayConnectCtx * roccq_head
DLL head for RequectOverlayConnectContext DLL - to be used to clean up during shutdown.
static void cleanup_rocc(struct RemoteOverlayConnectCtx *rocc)
Function to cleanup RemoteOverlayConnectCtx and any associated tasks with it.
Context information for remote overlay connect operations.
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Variable Documentation

◆ occq_head

struct OverlayConnectContext* occq_head
static

DLL head for OverlayConnectContext DLL - to be used to clean up during shutdown.

Definition at line 324 of file gnunet-service-testbed_oc.c.

◆ occq_tail

struct OverlayConnectContext* occq_tail
static

DLL tail for OverlayConnectContext DLL.

Definition at line 329 of file gnunet-service-testbed_oc.c.

◆ roccq_head

struct RemoteOverlayConnectCtx* roccq_head
static

DLL head for RequectOverlayConnectContext DLL - to be used to clean up during shutdown.

Definition at line 335 of file gnunet-service-testbed_oc.c.

◆ roccq_tail

struct RemoteOverlayConnectCtx* roccq_tail
static

DLL tail for RequectOverlayConnectContext DLL.

Definition at line 340 of file gnunet-service-testbed_oc.c.