GNUnet  0.11.x
Data Structures | Macros | Functions
gnunet-nat-auto_legacy.c File Reference
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_nat_lib.h"
#include "nat.h"
Include dependency graph for gnunet-nat-auto_legacy.c:

Go to the source code of this file.

Data Structures

struct  NatActivity
 Entry we keep for each incoming connection. More...
 
struct  ClientActivity
 Entry we keep for each connection to the gnunet-nat-service. More...
 
struct  GNUNET_NAT_Test
 Handle to a NAT test. More...
 

Macros

#define LOG(kind, ...)   GNUNET_log_from (kind, "nat", __VA_ARGS__)
 
#define NAT_SERVER_TIMEOUT   GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
 

Functions

static void reversal_cb (void *cls, const struct sockaddr *addr, socklen_t addrlen)
 Function called from GNUNET_NAT_register whenever someone asks us to do connection reversal. More...
 
static void do_udp_read (void *cls)
 Activity on our incoming socket. More...
 
static void do_read (void *cls)
 Activity on our incoming socket. More...
 
static void do_accept (void *cls)
 Activity on our listen socket. More...
 
static void mq_error_handler (void *cls, enum GNUNET_MQ_Error error)
 We got disconnected from the NAT server. More...
 
static void addr_cb (void *cls, int add_remove, const struct sockaddr *addr, socklen_t addrlen)
 Address-callback, used to send message to gnunet-nat-server. More...
 
static void do_timeout (void *cls)
 Timeout task for a nat test. More...
 
struct GNUNET_NAT_TestGNUNET_NAT_test_start (const struct GNUNET_CONFIGURATION_Handle *cfg, int is_tcp, uint16_t bnd_port, uint16_t adv_port, struct GNUNET_TIME_Relative timeout, GNUNET_NAT_TestCallback report, void *report_cls)
 Start testing if NAT traversal works using the given configuration (IPv4-only). More...
 
void GNUNET_NAT_test_stop (struct GNUNET_NAT_Test *tst)
 Stop an active NAT test. More...
 

Macro Definition Documentation

◆ LOG

#define LOG (   kind,
  ... 
)    GNUNET_log_from (kind, "nat", __VA_ARGS__)

◆ NAT_SERVER_TIMEOUT

#define NAT_SERVER_TIMEOUT   GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)

Definition at line 33 of file gnunet-nat-auto_legacy.c.

Function Documentation

◆ reversal_cb()

static void reversal_cb ( void *  cls,
const struct sockaddr *  addr,
socklen_t  addrlen 
)
static

Function called from GNUNET_NAT_register whenever someone asks us to do connection reversal.

Parameters
clsclosure, our struct GNUNET_NAT_Handle
addrpublic IP address of the other peer
addrlenactual lenght of the addr

Definition at line 186 of file gnunet-nat-auto_legacy.c.

References GNUNET_NAT_Test::data, GNUNET_ERROR_TYPE_DEBUG, GNUNET_NAT_ERROR_SUCCESS, NatActivity::h, LOG, GNUNET_NAT_Test::report, and GNUNET_NAT_Test::report_cls.

Referenced by GNUNET_NAT_test_start().

187 {
188  struct GNUNET_NAT_Test *h = cls;
189  const struct sockaddr_in *sa;
190 
191  if (sizeof(struct sockaddr_in) != addrlen)
192  return;
193  sa = (const struct sockaddr_in *) addr;
194  if (h->data != sa->sin_port)
195  {
197  "Received connection reversal request for wrong port\n");
198  return; /* wrong port */
199  }
200  /* report success */
202 }
uint16_t data
Data that should be transmitted or source-port.
void * report_cls
Closure for report.
GNUNET_NAT_TestCallback report
Function to call with success report.
static struct GNUNET_ARM_Handle * h
Connection with ARM.
Definition: gnunet-arm.c:99
#define LOG(kind,...)
Handle to a NAT test.
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◆ do_udp_read()

static void do_udp_read ( void *  cls)
static

Activity on our incoming socket.

Read data from the incoming connection.

Parameters
clsthe struct GNUNET_NAT_Test

Definition at line 212 of file gnunet-nat-auto_legacy.c.

References data, GNUNET_NAT_Test::data, GNUNET_ERROR_TYPE_DEBUG, GNUNET_NAT_ERROR_SUCCESS, GNUNET_NETWORK_fdset_isset(), GNUNET_NETWORK_socket_recv(), GNUNET_SCHEDULER_add_read_net(), GNUNET_SCHEDULER_get_task_context(), GNUNET_TIME_UNIT_FOREVER_REL, LOG, GNUNET_NAT_Test::lsock, GNUNET_NAT_Test::ltask, GNUNET_SCHEDULER_TaskContext::read_ready, GNUNET_NAT_Test::report, GNUNET_NAT_Test::report_cls, tc, and GNUNET_SCHEDULER_TaskContext::write_ready.

Referenced by GNUNET_NAT_test_start().

213 {
214  struct GNUNET_NAT_Test *tst = cls;
215  uint16_t data;
216  const struct GNUNET_SCHEDULER_TaskContext *tc;
217 
220  tst->lsock,
221  &do_udp_read,
222  tst);
223  if ((NULL != tc->write_ready) &&
225  (sizeof(data) ==
226  GNUNET_NETWORK_socket_recv (tst->lsock, &data, sizeof(data))))
227  {
228  if (data == tst->data)
230  else
232  "Received data mismatches expected value\n");
233  }
234  else
236  "Failed to receive data from inbound connection\n");
237 }
const struct GNUNET_SCHEDULER_TaskContext * GNUNET_SCHEDULER_get_task_context(void)
Obtain the reasoning why the current task was started.
Definition: scheduler.c:747
uint16_t data
Data that should be transmitted or source-port.
Context information passed to each scheduler task.
ssize_t GNUNET_NETWORK_socket_recv(const struct GNUNET_NETWORK_Handle *desc, void *buffer, size_t length)
Read data from a connected socket (always non-blocking).
Definition: network.c:787
static struct GNUNET_SCHEDULER_TaskContext tc
Task context of the current task.
Definition: scheduler.c:418
void * report_cls
Closure for report.
const struct GNUNET_NETWORK_FDSet * write_ready
Set of file descriptors ready for writing; note that additional bits may be set that were not in the ...
const struct GNUNET_NETWORK_FDSet * read_ready
Set of file descriptors ready for reading; note that additional bits may be set that were not in the ...
GNUNET_NAT_TestCallback report
Function to call with success report.
#define LOG(kind,...)
#define GNUNET_TIME_UNIT_FOREVER_REL
Constant used to specify "forever".
static void do_udp_read(void *cls)
Activity on our incoming socket.
Handle to a NAT test.
struct GNUNET_SCHEDULER_Task * ltask
Identity of task for the listen socket (if any)
struct GNUNET_NETWORK_Handle * lsock
Handle to listen socket, or NULL.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_read_net(struct GNUNET_TIME_Relative delay, struct GNUNET_NETWORK_Handle *rfd, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay or when the specified file descriptor is ready f...
Definition: scheduler.c:1486
int GNUNET_NETWORK_fdset_isset(const struct GNUNET_NETWORK_FDSet *fds, const struct GNUNET_NETWORK_Handle *desc)
Check whether a socket is part of the fd set.
Definition: network.c:1029
uint32_t data
The data value.
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◆ do_read()

static void do_read ( void *  cls)
static

Activity on our incoming socket.

Read data from the incoming connection.

Parameters
clsthe struct NatActivity

Definition at line 247 of file gnunet-nat-auto_legacy.c.

References data, GNUNET_NAT_Test::data, GNUNET_CONTAINER_DLL_remove, GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_NAT_ERROR_SUCCESS, GNUNET_NETWORK_fdset_isset(), GNUNET_NETWORK_socket_close(), GNUNET_NETWORK_socket_recv(), GNUNET_SCHEDULER_get_task_context(), NatActivity::h, LOG, GNUNET_NAT_Test::na_head, GNUNET_NAT_Test::na_tail, GNUNET_SCHEDULER_TaskContext::read_ready, GNUNET_NAT_Test::report, GNUNET_NAT_Test::report_cls, NatActivity::rtask, NatActivity::sock, tc, and GNUNET_SCHEDULER_TaskContext::write_ready.

Referenced by do_accept().

248 {
249  struct NatActivity *na = cls;
250  struct GNUNET_NAT_Test *tst;
251  uint16_t data;
252  const struct GNUNET_SCHEDULER_TaskContext *tc;
253 
255  na->rtask = NULL;
256  tst = na->h;
258  if ((NULL != tc->write_ready) &&
260  (sizeof(data) ==
261  GNUNET_NETWORK_socket_recv (na->sock, &data, sizeof(data))))
262  {
263  if (data == tst->data)
265  else
267  "Received data does not match expected value\n");
268  }
269  else
271  "Failed to receive data from inbound connection\n");
273  GNUNET_free (na);
274 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
const struct GNUNET_SCHEDULER_TaskContext * GNUNET_SCHEDULER_get_task_context(void)
Obtain the reasoning why the current task was started.
Definition: scheduler.c:747
uint16_t data
Data that should be transmitted or source-port.
Context information passed to each scheduler task.
ssize_t GNUNET_NETWORK_socket_recv(const struct GNUNET_NETWORK_Handle *desc, void *buffer, size_t length)
Read data from a connected socket (always non-blocking).
Definition: network.c:787
struct GNUNET_NETWORK_Handle * sock
Socket of the incoming connection.
static struct GNUNET_SCHEDULER_TaskContext tc
Task context of the current task.
Definition: scheduler.c:418
void * report_cls
Closure for report.
const struct GNUNET_NETWORK_FDSet * write_ready
Set of file descriptors ready for writing; note that additional bits may be set that were not in the ...
struct NatActivity * na_tail
Tail of list of nat activities.
const struct GNUNET_NETWORK_FDSet * read_ready
Set of file descriptors ready for reading; note that additional bits may be set that were not in the ...
GNUNET_NAT_TestCallback report
Function to call with success report.
struct GNUNET_SCHEDULER_Task * rtask
Task reading from the incoming connection.
Entry we keep for each incoming connection.
#define LOG(kind,...)
struct NatActivity * na_head
Head of list of nat activities.
Handle to a NAT test.
struct GNUNET_NAT_Test * h
Handle of the master context.
int GNUNET_NETWORK_fdset_isset(const struct GNUNET_NETWORK_FDSet *fds, const struct GNUNET_NETWORK_Handle *desc)
Check whether a socket is part of the fd set.
Definition: network.c:1029
uint32_t data
The data value.
int GNUNET_NETWORK_socket_close(struct GNUNET_NETWORK_Handle *desc)
Close a socket.
Definition: network.c:560
#define GNUNET_free(ptr)
Wrapper around free.
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◆ do_accept()

static void do_accept ( void *  cls)
static

Activity on our listen socket.

Accept the incoming connection.

Parameters
clsthe struct GNUNET_NAT_Test

Definition at line 284 of file gnunet-nat-auto_legacy.c.

References do_read(), GNUNET_CONTAINER_DLL_insert, GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_INFO, GNUNET_log_strerror, GNUNET_NETWORK_socket_accept(), GNUNET_new, GNUNET_SCHEDULER_add_read_net(), GNUNET_TIME_UNIT_FOREVER_REL, NatActivity::h, LOG, GNUNET_NAT_Test::lsock, GNUNET_NAT_Test::ltask, GNUNET_NAT_Test::na_head, GNUNET_NAT_Test::na_tail, NatActivity::rtask, and NatActivity::sock.

Referenced by GNUNET_NAT_test_start().

285 {
286  struct GNUNET_NAT_Test *tst = cls;
287  struct GNUNET_NETWORK_Handle *s;
288  struct NatActivity *wl;
289 
291  tst->lsock,
292  &do_accept,
293  tst);
294  s = GNUNET_NETWORK_socket_accept (tst->lsock, NULL, NULL);
295  if (NULL == s)
296  {
298  return; /* odd error */
299  }
301  "Got an inbound connection, waiting for data\n");
302  wl = GNUNET_new (struct NatActivity);
303  wl->sock = s;
304  wl->h = tst;
306  wl->sock,
307  &do_read,
308  wl);
310 }
#define GNUNET_CONTAINER_DLL_insert(head, tail, element)
Insert an element at the head of a DLL.
struct GNUNET_NETWORK_Handle * sock
Socket of the incoming connection.
static void do_read(void *cls)
Activity on our incoming socket.
struct NatActivity * na_tail
Tail of list of nat activities.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
struct GNUNET_SCHEDULER_Task * rtask
Task reading from the incoming connection.
Entry we keep for each incoming connection.
struct GNUNET_NETWORK_Handle * GNUNET_NETWORK_socket_accept(const struct GNUNET_NETWORK_Handle *desc, struct sockaddr *address, socklen_t *address_len)
Accept a new connection on a socket.
Definition: network.c:430
#define GNUNET_log_strerror(level, cmd)
Log an error message at log-level 'level' that indicates a failure of the command 'cmd' with the mess...
#define LOG(kind,...)
struct NatActivity * na_head
Head of list of nat activities.
#define GNUNET_TIME_UNIT_FOREVER_REL
Constant used to specify "forever".
static void do_accept(void *cls)
Activity on our listen socket.
Handle to a NAT test.
struct GNUNET_SCHEDULER_Task * ltask
Identity of task for the listen socket (if any)
struct GNUNET_NETWORK_Handle * lsock
Handle to listen socket, or NULL.
handle to a socket
Definition: network.c:52
struct GNUNET_NAT_Test * h
Handle of the master context.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_read_net(struct GNUNET_TIME_Relative delay, struct GNUNET_NETWORK_Handle *rfd, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay or when the specified file descriptor is ready f...
Definition: scheduler.c:1486
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◆ mq_error_handler()

static void mq_error_handler ( void *  cls,
enum GNUNET_MQ_Error  error 
)
static

We got disconnected from the NAT server.

Stop waiting for a reply.

Parameters
clsthe struct ClientActivity
errorerror code

Definition at line 321 of file gnunet-nat-auto_legacy.c.

References GNUNET_NAT_Test::ca_head, GNUNET_NAT_Test::ca_tail, GNUNET_CONTAINER_DLL_remove, GNUNET_free, GNUNET_MQ_destroy(), ClientActivity::h, and ClientActivity::mq.

Referenced by addr_cb().

322 {
323  struct ClientActivity *ca = cls;
324  struct GNUNET_NAT_Test *tst = ca->h;
325 
327  GNUNET_MQ_destroy (ca->mq);
328  GNUNET_free (ca);
329 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
struct GNUNET_MQ_Handle * mq
Socket of the incoming connection.
struct ClientActivity * ca_tail
Tail of list of client activities.
struct ClientActivity * ca_head
Head of list of client activities.
struct GNUNET_NAT_Test * h
Handle to overall NAT test.
Handle to a NAT test.
void GNUNET_MQ_destroy(struct GNUNET_MQ_Handle *mq)
Destroy the message queue.
Definition: mq.c:824
Entry we keep for each connection to the gnunet-nat-service.
#define GNUNET_free(ptr)
Wrapper around free.
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◆ addr_cb()

static void addr_cb ( void *  cls,
int  add_remove,
const struct sockaddr *  addr,
socklen_t  addrlen 
)
static

Address-callback, used to send message to gnunet-nat-server.

Parameters
clsclosure
add_removeGNUNET_YES to mean the new public IP address, GNUNET_NO to mean the previous (now invalid) one
addreither the previous or the new public IP address
addrlenactual length of the addr

Definition at line 342 of file gnunet-nat-auto_legacy.c.

References _, GNUNET_NAT_Test::ca_head, GNUNET_NAT_Test::ca_tail, GNUNET_NAT_Test::cfg, GNUNET_NAT_TestMessage::data, GNUNET_NAT_Test::data, GNUNET_NAT_TestMessage::dport, GNUNET_NAT_TestMessage::dst_ipv4, env, GNUNET_a2s(), GNUNET_CLIENT_connect(), GNUNET_CONTAINER_DLL_insert, GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_ERROR_TYPE_INFO, GNUNET_free, GNUNET_log, GNUNET_MESSAGE_TYPE_NAT_TEST, GNUNET_MQ_msg, GNUNET_MQ_send(), GNUNET_new, GNUNET_YES, NatActivity::h, ClientActivity::h, GNUNET_NAT_TestMessage::is_tcp, GNUNET_NAT_Test::is_tcp, LOG, ClientActivity::mq, mq_error_handler(), and msg.

Referenced by GNUNET_NAT_test_start().

346 {
347  struct GNUNET_NAT_Test *h = cls;
348  struct ClientActivity *ca;
349  struct GNUNET_MQ_Envelope *env;
350  struct GNUNET_NAT_TestMessage *msg;
351  const struct sockaddr_in *sa;
352 
353  if (GNUNET_YES != add_remove)
354  return;
355  if (addrlen != sizeof(struct sockaddr_in))
356  {
358  "NAT test ignores IPv6 address `%s' returned from NAT library\n",
359  GNUNET_a2s (addr, addrlen));
360  return; /* ignore IPv6 here */
361  }
363  "Asking gnunet-nat-server to connect to `%s'\n",
364  GNUNET_a2s (addr, addrlen));
365 
366  ca = GNUNET_new (struct ClientActivity);
367  ca->h = h;
368  ca->mq = GNUNET_CLIENT_connect (h->cfg,
369  "gnunet-nat-server",
370  NULL,
372  ca);
373  if (NULL == ca->mq)
374  {
375  GNUNET_free (ca);
377  _ ("Failed to connect to `gnunet-nat-server'\n"));
378  return;
379  }
381  sa = (const struct sockaddr_in *) addr;
383  msg->dst_ipv4 = sa->sin_addr.s_addr;
384  msg->dport = sa->sin_port;
385  msg->data = h->data;
386  msg->is_tcp = htonl ((uint32_t) h->is_tcp);
387  GNUNET_MQ_send (ca->mq, env);
388 }
const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration used.
struct GNUNET_MessageHeader * msg
Definition: 005.c:2
#define GNUNET_CONTAINER_DLL_insert(head, tail, element)
Insert an element at the head of a DLL.
uint32_t dst_ipv4
IPv4 target IP address.
Definition: nat.h:48
uint16_t data
Data that should be transmitted or source-port.
struct GNUNET_MQ_Handle * GNUNET_CLIENT_connect(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *service_name, const struct GNUNET_MQ_MessageHandler *handlers, GNUNET_MQ_ErrorHandler error_handler, void *error_handler_cls)
Create a message queue to connect to a GNUnet service.
Definition: client.c:1057
struct GNUNET_MQ_Handle * mq
Socket of the incoming connection.
int32_t is_tcp
GNUNET_YES for TCP, GNUNET_NO for UDP.
Definition: nat.h:63
#define GNUNET_MQ_msg(mvar, type)
Allocate a GNUNET_MQ_Envelope.
Definition: gnunet_mq_lib.h:67
#define GNUNET_MESSAGE_TYPE_NAT_TEST
Message to ask NAT server to perform traversal test.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
static struct GNUNET_ARM_Handle * h
Connection with ARM.
Definition: gnunet-arm.c:99
#define _(String)
GNU gettext support macro.
Definition: platform.h:181
uint16_t dport
Port to use, 0 to send dummy ICMP response.
Definition: nat.h:53
struct ClientActivity * ca_tail
Tail of list of client activities.
struct ClientActivity * ca_head
Head of list of client activities.
#define LOG(kind,...)
const char * GNUNET_a2s(const struct sockaddr *addr, socklen_t addrlen)
Convert a "struct sockaddr*" (IPv4 or IPv6 address) to a string (for printing debug messages)...
static void mq_error_handler(void *cls, enum GNUNET_MQ_Error error)
We got disconnected from the NAT server.
struct GNUNET_MQ_Envelope * env
Definition: 005.c:1
struct GNUNET_NAT_Test * h
Handle to overall NAT test.
Handle to a NAT test.
Request to test NAT traversal, sent to the gnunet-nat-server (not the service!).
Definition: nat.h:38
#define GNUNET_log(kind,...)
#define GNUNET_YES
Definition: gnunet_common.h:77
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:353
Entry we keep for each connection to the gnunet-nat-service.
int is_tcp
GNUNET_YES if we're testing TCP
#define GNUNET_free(ptr)
Wrapper around free.
uint16_t data
Data to send OR advertised-port (in NBO) to use for dummy ICMP.
Definition: nat.h:58
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◆ do_timeout()

static void do_timeout ( void *  cls)
static

Timeout task for a nat test.

Calls the report-callback with a timeout return value

Destroys the nat handle after the callback has been processed.

Parameters
clshandle to the timed out NAT test

Definition at line 400 of file gnunet-nat-auto_legacy.c.

References GNUNET_NAT_ERROR_SUCCESS, GNUNET_NAT_ERROR_TIMEOUT, nh, GNUNET_NAT_Test::report, GNUNET_NAT_Test::report_cls, GNUNET_NAT_Test::status, and GNUNET_NAT_Test::ttask.

Referenced by GNUNET_NAT_test_start().

401 {
402  struct GNUNET_NAT_Test *nh = cls;
403 
404  nh->ttask = NULL;
405  nh->report (nh->report_cls,
408  : nh->status);
409 }
void * report_cls
Closure for report.
GNUNET_NAT_TestCallback report
Function to call with success report.
static struct GNUNET_NAT_Handle * nh
Handle to NAT operation.
Definition: gnunet-nat.c:80
struct GNUNET_SCHEDULER_Task * ttask
Task identifier for the timeout (if any)
Handle to a NAT test.
enum GNUNET_NAT_StatusCode status
Status code to be reported to the timeout/status call.
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◆ GNUNET_NAT_test_start()

struct GNUNET_NAT_Test* GNUNET_NAT_test_start ( const struct GNUNET_CONFIGURATION_Handle cfg,
int  is_tcp,
uint16_t  bnd_port,
uint16_t  adv_port,
struct GNUNET_TIME_Relative  timeout,
GNUNET_NAT_TestCallback  report,
void *  report_cls 
)

Start testing if NAT traversal works using the given configuration (IPv4-only).

ALL failures are reported directly to the report callback

Parameters
cfgconfiguration for the NAT traversal
is_tcpGNUNET_YES to test TCP, GNUNET_NO to test UDP
bnd_portport to bind to, 0 for connection reversal
adv_portexternally advertised port to use
timeoutdelay after which the test should be aborted
reportfunction to call with the result of the test
report_clsclosure for report
Returns
handle to cancel NAT test or NULL. The error is always indicated via the report callback

Definition at line 428 of file gnunet-nat-auto_legacy.c.

References _, addr_cb(), GNUNET_NAT_Test::adv_port, cfg, GNUNET_NAT_Test::cfg, GNUNET_NAT_Test::data, do_accept(), do_timeout(), do_udp_read(), GNUNET_a2s(), GNUNET_break, GNUNET_ERROR_TYPE_ERROR, GNUNET_ERROR_TYPE_INFO, GNUNET_log, GNUNET_NAT_ERROR_INTERNAL_NETWORK_ERROR, GNUNET_NAT_ERROR_NAT_REGISTER_FAILED, GNUNET_NAT_ERROR_SUCCESS, GNUNET_NAT_register(), GNUNET_NETWORK_socket_bind(), GNUNET_NETWORK_socket_close(), GNUNET_NETWORK_socket_create(), GNUNET_NETWORK_socket_listen(), GNUNET_new, GNUNET_OK, GNUNET_SCHEDULER_add_delayed(), GNUNET_SCHEDULER_add_now(), GNUNET_SCHEDULER_add_read_net(), GNUNET_SCHEDULER_cancel(), GNUNET_TIME_UNIT_FOREVER_REL, GNUNET_YES, GNUNET_NAT_Test::is_tcp, LOG, GNUNET_NAT_Test::lsock, GNUNET_NAT_Test::ltask, GNUNET_NAT_Test::nat, nh, GNUNET_NAT_Test::report, GNUNET_NAT_Test::report_cls, reversal_cb(), GNUNET_NAT_Test::status, and GNUNET_NAT_Test::ttask.

Referenced by reversal_test().

435 {
436  struct GNUNET_NAT_Test *nh;
437  struct sockaddr_in sa;
438  const struct sockaddr *addrs[] = { (const struct sockaddr *) &sa };
439  const socklen_t addrlens[] = { sizeof(sa) };
440 
441  memset (&sa, 0, sizeof(sa));
442  sa.sin_family = AF_INET;
443  sa.sin_port = htons (bnd_port);
444 #if HAVE_SOCKADDR_IN_SIN_LEN
445  sa.sin_len = sizeof(sa);
446 #endif
447 
448  nh = GNUNET_new (struct GNUNET_NAT_Test);
449  nh->cfg = cfg;
450  nh->is_tcp = is_tcp;
451  nh->data = bnd_port;
452  nh->adv_port = adv_port;
453  nh->report = report;
454  nh->report_cls = report_cls;
456  if (0 == bnd_port)
457  {
458  nh->nat = GNUNET_NAT_register (cfg,
459  is_tcp,
460  0,
461  0,
462  NULL,
463  NULL,
464  &addr_cb,
465  &reversal_cb,
466  nh,
467  NULL);
468  }
469  else
470  {
471  nh->lsock =
473  (is_tcp == GNUNET_YES) ? SOCK_STREAM
474  : SOCK_DGRAM,
475  0);
476  if ((nh->lsock == NULL) ||
478  (const struct sockaddr *) &sa,
479  sizeof(sa))))
480  {
481  GNUNET_log (
483  _ ("Failed to create listen socket bound to `%s' for NAT test: %s\n"),
484  GNUNET_a2s ((const struct sockaddr *) &sa, sizeof(sa)),
485  strerror (errno));
486  if (NULL != nh->lsock)
487  {
489  nh->lsock = NULL;
490  }
493  return nh;
494  }
495  if (GNUNET_YES == is_tcp)
496  {
499  nh->lsock,
500  &do_accept,
501  nh);
502  }
503  else
504  {
506  nh->lsock,
507  &do_udp_read,
508  nh);
509  }
511  "NAT test listens on port %u (%s)\n",
512  bnd_port,
513  (GNUNET_YES == is_tcp) ? "tcp" : "udp");
514  nh->nat = GNUNET_NAT_register (cfg,
515  is_tcp,
516  adv_port,
517  1,
518  addrs,
519  addrlens,
520  &addr_cb,
521  NULL,
522  nh,
523  NULL);
524  if (NULL == nh->nat)
525  {
527  _ ("NAT test failed to start NAT library\n"));
528  if (NULL != nh->ltask)
529  {
531  nh->ltask = NULL;
532  }
533  if (NULL != nh->lsock)
534  {
536  nh->lsock = NULL;
537  }
540  return nh;
541  }
542  }
543  nh->ttask = GNUNET_SCHEDULER_add_delayed (timeout, &do_timeout, nh);
544  return nh;
545 }
int GNUNET_NETWORK_socket_listen(const struct GNUNET_NETWORK_Handle *desc, int backlog)
Listen on a socket.
Definition: network.c:708
NAT test failed to initiate.
const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration used.
static const struct GNUNET_CONFIGURATION_Handle * cfg
Configuration we are using.
Definition: gnunet-abd.c:36
uint16_t data
Data that should be transmitted or source-port.
int GNUNET_NETWORK_socket_bind(struct GNUNET_NETWORK_Handle *desc, const struct sockaddr *address, socklen_t address_len)
Bind a socket to a particular address.
Definition: network.c:485
void * report_cls
Closure for report.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
#define GNUNET_new(type)
Allocate a struct or union of the given type.
GNUNET_NAT_TestCallback report
Function to call with success report.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur...
struct GNUNET_NAT_Handle * nat
Handle to NAT traversal in use.
#define _(String)
GNU gettext support macro.
Definition: platform.h:181
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:1253
uint16_t adv_port
Advertised port to the other 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:1280
#define LOG(kind,...)
#define GNUNET_TIME_UNIT_FOREVER_REL
Constant used to specify "forever".
const char * GNUNET_a2s(const struct sockaddr *addr, socklen_t addrlen)
Convert a "struct sockaddr*" (IPv4 or IPv6 address) to a string (for printing debug messages)...
static void do_udp_read(void *cls)
Activity on our incoming socket.
static struct GNUNET_NAT_Handle * nh
Handle to NAT operation.
Definition: gnunet-nat.c:80
Failure in network subsystem, check permissions.
static void do_accept(void *cls)
Activity on our listen socket.
static void addr_cb(void *cls, int add_remove, const struct sockaddr *addr, socklen_t addrlen)
Address-callback, used to send message to gnunet-nat-server.
struct GNUNET_SCHEDULER_Task * ttask
Task identifier for the timeout (if any)
struct GNUNET_NAT_Handle * GNUNET_NAT_register(const struct GNUNET_CONFIGURATION_Handle *cfg, const char *config_section, uint8_t proto, unsigned int num_addrs, const struct sockaddr **addrs, const socklen_t *addrlens, GNUNET_NAT_AddressCallback address_callback, GNUNET_NAT_ReversalCallback reversal_callback, void *callback_cls)
Attempt to enable port redirection and detect public IP address contacting UPnP or NAT-PMP routers on...
Definition: nat_api.c:378
Handle to a NAT test.
static void do_timeout(void *cls)
Timeout task for a nat test.
static void reversal_cb(void *cls, const struct sockaddr *addr, socklen_t addrlen)
Function called from GNUNET_NAT_register whenever someone asks us to do connection reversal...
struct GNUNET_SCHEDULER_Task * ltask
Identity of task for the listen socket (if any)
#define GNUNET_log(kind,...)
struct GNUNET_NETWORK_Handle * lsock
Handle to listen socket, or NULL.
enum GNUNET_NAT_StatusCode status
Status code to be reported to the timeout/status call.
#define GNUNET_YES
Definition: gnunet_common.h:77
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_read_net(struct GNUNET_TIME_Relative delay, struct GNUNET_NETWORK_Handle *rfd, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay or when the specified file descriptor is ready f...
Definition: scheduler.c:1486
int is_tcp
GNUNET_YES if we're testing TCP
int GNUNET_NETWORK_socket_close(struct GNUNET_NETWORK_Handle *desc)
Close a socket.
Definition: network.c:560
struct GNUNET_NETWORK_Handle * GNUNET_NETWORK_socket_create(int domain, int type, int protocol)
Create a new socket.
Definition: network.c:912
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:966
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◆ GNUNET_NAT_test_stop()

void GNUNET_NAT_test_stop ( struct GNUNET_NAT_Test tst)

Stop an active NAT test.

Parameters
tsttest to stop.

Definition at line 554 of file gnunet-nat-auto_legacy.c.

References GNUNET_NAT_Test::ca_head, GNUNET_NAT_Test::ca_tail, GNUNET_CONTAINER_DLL_remove, GNUNET_ERROR_TYPE_DEBUG, GNUNET_free, GNUNET_MQ_destroy(), GNUNET_NAT_unregister(), GNUNET_NETWORK_socket_close(), GNUNET_SCHEDULER_cancel(), LOG, GNUNET_NAT_Test::lsock, GNUNET_NAT_Test::ltask, ClientActivity::mq, GNUNET_NAT_Test::na_head, GNUNET_NAT_Test::na_tail, GNUNET_NAT_Test::nat, NatActivity::rtask, NatActivity::sock, and GNUNET_NAT_Test::ttask.

Referenced by GNUNET_NAT_autoconfig_cancel(), and result_callback().

555 {
556  struct NatActivity *pos;
557  struct ClientActivity *cpos;
558 
559  LOG (GNUNET_ERROR_TYPE_DEBUG, "Stopping NAT test\n");
560  while (NULL != (cpos = tst->ca_head))
561  {
562  GNUNET_CONTAINER_DLL_remove (tst->ca_head, tst->ca_tail, cpos);
563  GNUNET_MQ_destroy (cpos->mq);
564  GNUNET_free (cpos);
565  }
566  while (NULL != (pos = tst->na_head))
567  {
568  GNUNET_CONTAINER_DLL_remove (tst->na_head, tst->na_tail, pos);
571  GNUNET_free (pos);
572  }
573  if (NULL != tst->ttask)
574  {
576  tst->ttask = NULL;
577  }
578  if (NULL != tst->ltask)
579  {
581  tst->ltask = NULL;
582  }
583  if (NULL != tst->lsock)
584  {
586  tst->lsock = NULL;
587  }
588  if (NULL != tst->nat)
589  {
590  GNUNET_NAT_unregister (tst->nat);
591  tst->nat = NULL;
592  }
593  GNUNET_free (tst);
594 }
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
struct GNUNET_MQ_Handle * mq
Socket of the incoming connection.
struct GNUNET_NETWORK_Handle * sock
Socket of the incoming connection.
struct NatActivity * na_tail
Tail of list of nat activities.
struct GNUNET_NAT_Handle * nat
Handle to NAT traversal in use.
struct GNUNET_SCHEDULER_Task * rtask
Task reading from the incoming connection.
Entry we keep for each incoming connection.
struct ClientActivity * ca_tail
Tail of list of client activities.
struct ClientActivity * ca_head
Head of list of client activities.
#define LOG(kind,...)
struct NatActivity * na_head
Head of list of nat activities.
void GNUNET_NAT_unregister(struct GNUNET_NAT_Handle *nh)
Stop port redirection and public IP address detection for the given handle.
Definition: nat_api.c:692
struct GNUNET_SCHEDULER_Task * ttask
Task identifier for the timeout (if any)
struct GNUNET_SCHEDULER_Task * ltask
Identity of task for the listen socket (if any)
struct GNUNET_NETWORK_Handle * lsock
Handle to listen socket, or NULL.
void GNUNET_MQ_destroy(struct GNUNET_MQ_Handle *mq)
Destroy the message queue.
Definition: mq.c:824
Entry we keep for each connection to the gnunet-nat-service.
int GNUNET_NETWORK_socket_close(struct GNUNET_NETWORK_Handle *desc)
Close a socket.
Definition: network.c:560
#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:966
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