GNUnet  0.10.x
Macros | Functions | Variables
gnunet-scalarproduct.c File Reference

scalarproduct client More...

#include <gcrypt.h>
#include <inttypes.h>
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_scalarproduct_service.h"
#include "gnunet_protocols.h"
#include "scalarproduct.h"
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Go to the source code of this file.

Macros

#define GCRYPT_NO_DEPRECATED
 
#define LOG(kind, ...)   GNUNET_log_from(kind, "gnunet-scalarproduct", __VA_ARGS__)
 

Functions

static void responder_callback (void *cls, enum GNUNET_SCALARPRODUCT_ResponseStatus status)
 Callback called if we are initiating a new computation session. More...
 
static void requester_callback (void *cls, enum GNUNET_SCALARPRODUCT_ResponseStatus status, gcry_mpi_t result)
 Callback called if we are initiating a new computation session. More...
 
static void shutdown_task (void *cls)
 Task run during shutdown. More...
 
static void run (void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
 Main function that will be run by the scheduler. More...
 
int main (int argc, char *const *argv)
 The main function to the scalarproduct client. More...
 

Variables

static struct GNUNET_HashCode session_key
 the session key identifying this computation More...
 
static struct GNUNET_PeerIdentity peer_id
 PeerID we want to compute a scalar product with. More...
 
static char * input_peer_id
 Option -p: destination peer identity for checking message-ids with. More...
 
static char * input_session_key
 Option -p: destination peer identity for checking message-ids with. More...
 
static char * input_elements
 Option -e: vector to calculate a scalarproduct with. More...
 
static int ret = -1
 Global return value. More...
 
static struct GNUNET_SCALARPRODUCT_ComputationHandlecomputation
 our Scalarproduct Computation handle More...
 

Detailed Description

scalarproduct client

Author
Christian M. Fuchs

Definition in file gnunet-scalarproduct.c.

Macro Definition Documentation

◆ GCRYPT_NO_DEPRECATED

#define GCRYPT_NO_DEPRECATED

Definition at line 26 of file gnunet-scalarproduct.c.

◆ LOG

#define LOG (   kind,
  ... 
)    GNUNET_log_from(kind, "gnunet-scalarproduct", __VA_ARGS__)

Definition at line 36 of file gnunet-scalarproduct.c.

Referenced by requester_callback(), responder_callback(), and run().

Function Documentation

◆ responder_callback()

static void responder_callback ( void *  cls,
enum GNUNET_SCALARPRODUCT_ResponseStatus  status 
)
static

Callback called if we are initiating a new computation session.

Parameters
clsunused
statusif our job was successfully processed

Definition at line 82 of file gnunet-scalarproduct.c.

References GNUNET_ERROR_TYPE_ERROR, GNUNET_ERROR_TYPE_INFO, GNUNET_h2s(), GNUNET_SCALARPRODUCT_STATUS_DISCONNECTED, GNUNET_SCALARPRODUCT_STATUS_FAILURE, GNUNET_SCALARPRODUCT_STATUS_INVALID_RESPONSE, GNUNET_SCALARPRODUCT_STATUS_SUCCESS, GNUNET_SCHEDULER_shutdown(), LOG, ret, and session_key.

Referenced by run().

84 {
85  switch (status)
86  {
88  ret = 0;
90  "Session %s concluded.\n",
92  break;
93 
96  "Session %s failed: invalid response\n",
98  break;
99 
102  "Session %s failed: service failure\n",
104  break;
105 
108  "Session %s failed: service disconnect!\n",
110  break;
111 
112  default:
114  "Session %s failed: return code %d\n",
116  status);
117  }
118  computation = NULL;
120 }
static int ret
Global return value.
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:517
static struct GNUNET_HashCode session_key
the session key identifying this computation
static struct GNUNET_SCALARPRODUCT_ComputationHandle * computation
our Scalarproduct Computation handle
uint16_t status
See PRISM_STATUS_*-constants.
We got disconnected from the SCALARPRODUCT service.
#define LOG(kind,...)
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◆ requester_callback()

static void requester_callback ( void *  cls,
enum GNUNET_SCALARPRODUCT_ResponseStatus  status,
gcry_mpi_t  result 
)
static

Callback called if we are initiating a new computation session.

Parameters
clsunused
statusif our job was successfully processed
resultthe result in gnu/gcry MPI format

Definition at line 131 of file gnunet-scalarproduct.c.

References buf, GNUNET_ERROR_TYPE_ERROR, GNUNET_h2s(), GNUNET_i2s(), GNUNET_SCALARPRODUCT_STATUS_DISCONNECTED, GNUNET_SCALARPRODUCT_STATUS_FAILURE, GNUNET_SCALARPRODUCT_STATUS_INVALID_RESPONSE, GNUNET_SCALARPRODUCT_STATUS_SUCCESS, GNUNET_SCHEDULER_shutdown(), LOG, LOG_GCRY, peer_id, ret, and session_key.

Referenced by run().

134 {
135  unsigned char *buf;
136  gcry_error_t rc;
137 
138  switch (status)
139  {
141  if (0 == (rc = gcry_mpi_aprint(GCRYMPI_FMT_HEX, &buf, NULL, result)))
142  {
143  ret = 0;
144  fprintf(stdout,
145  "%s\n",
146  buf);
147  fflush(stdout);
148  }
149  else
151  "gcry_mpi_aprint",
152  rc);
153  break;
154 
157  "Session %s with peer %s failed: invalid response received\n",
159  GNUNET_i2s(&peer_id));
160  break;
161 
164  "Session %s with peer %s failed: API failure\n",
166  GNUNET_i2s(&peer_id));
167  break;
168 
171  "Session %s with peer %s was disconnected from service.\n",
173  GNUNET_i2s(&peer_id));
174  break;
175 
176  default:
178  "Session %s with peer %s failed: return code %d\n",
181  status);
182  }
183  computation = NULL;
185 }
static int ret
Global return value.
#define LOG_GCRY(level, cmd, rc)
Log an error message at log-level &#39;level&#39; that indicates a failure of the command &#39;cmd&#39; with the mess...
Definition: scalarproduct.h:35
const char * GNUNET_h2s(const struct GNUNET_HashCode *hc)
Convert a hash value to a string (for printing debug messages).
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:517
static struct GNUNET_HashCode session_key
the session key identifying this computation
static struct GNUNET_SCALARPRODUCT_ComputationHandle * computation
our Scalarproduct Computation handle
uint16_t status
See PRISM_STATUS_*-constants.
static char buf[2048]
static struct GNUNET_PeerIdentity peer_id
PeerID we want to compute a scalar product with.
static int result
Global testing status.
We got disconnected from the SCALARPRODUCT service.
#define LOG(kind,...)
const char * GNUNET_i2s(const struct GNUNET_PeerIdentity *pid)
Convert a peer identity to a string (for printing debug messages).
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◆ shutdown_task()

static void shutdown_task ( void *  cls)
static

Task run during shutdown.

Parameters
clsunused
tcunused

Definition at line 195 of file gnunet-scalarproduct.c.

References GNUNET_SCALARPRODUCT_cancel(), and ret.

Referenced by run().

196 {
197  if (NULL != computation)
198  {
200  ret = 1; /* aborted */
201  }
202 }
static int ret
Global return value.
void GNUNET_SCALARPRODUCT_cancel(struct GNUNET_SCALARPRODUCT_ComputationHandle *h)
Cancel an ongoing computation or revoke our collaboration offer.
static struct GNUNET_SCALARPRODUCT_ComputationHandle * computation
our Scalarproduct Computation handle
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◆ run()

static void run ( void *  cls,
char *const *  args,
const char *  cfgfile,
const struct GNUNET_CONFIGURATION_Handle cfg 
)
static

Main function that will be run by the scheduler.

Parameters
clsclosure
argsremaining command-line arguments
cfgfilename of the configuration file used (for saving, can be NULL!)
cfgconfiguration

Definition at line 214 of file gnunet-scalarproduct.c.

References _, end, GNUNET_CRYPTO_eddsa_public_key_from_string(), GNUNET_CRYPTO_hash(), GNUNET_ERROR_TYPE_ERROR, GNUNET_free, GNUNET_htonll(), GNUNET_malloc, GNUNET_OK, GNUNET_SCALARPRODUCT_accept_computation(), GNUNET_SCALARPRODUCT_start_computation(), GNUNET_SCHEDULER_add_shutdown(), input_elements, input_peer_id, input_session_key, GNUNET_SCALARPRODUCT_Element::key, LOG, peer_id, GNUNET_PeerIdentity::public_key, requester_callback(), responder_callback(), ret, session_key, shutdown_task(), and GNUNET_SCALARPRODUCT_Element::value.

Referenced by main().

218 {
219  char *begin = input_elements;
220  char *end;
221  unsigned int i;
222  struct GNUNET_SCALARPRODUCT_Element *elements;
223  uint32_t element_count = 0;
224 
225  if (NULL == input_elements)
226  {
228  _("You must specify at least one message ID to check!\n"));
229  return;
230  }
231  if ((NULL == input_session_key) ||
232  (0 == strlen(input_session_key)))
233  {
235  _("This program needs a session identifier for comparing vectors.\n"));
236  return;
237  }
239  strlen(input_session_key),
240  &session_key);
241  if ((NULL != input_peer_id) &&
242  (GNUNET_OK !=
244  strlen(input_peer_id),
245  &peer_id.public_key)))
246  {
248  _("Tried to set initiator mode, as peer ID was given. "
249  "However, `%s' is not a valid peer identifier.\n"),
250  input_peer_id);
251  return;
252  }
253  if (('\'' == *begin) &&
254  ('\'' == begin[strlen(begin) - 1]))
255  {
256  begin[strlen(begin) - 1] = '\0';
257  if (strlen(begin) > 0)
258  begin++;
259  }
260  for (end = begin; 0 != *end; end++)
261  if (*end == ';')
262  element_count++;
263  if (0 == element_count)
264  {
266  _("Need elements to compute the scalarproduct, got none.\n"));
267  return;
268  }
269 
270  elements = GNUNET_malloc(sizeof(struct GNUNET_SCALARPRODUCT_Element) * element_count);
271 
272  for (i = 0; i < element_count; i++)
273  {
274  struct GNUNET_SCALARPRODUCT_Element element;
275  char* separator = NULL;
276 
277  /* get the length of the current key,value; tupel */
278  for (end = begin; *end != ';'; end++)
279  if (*end == ',')
280  separator = end;
281 
282  /* final element */
283  if ((NULL == separator) ||
284  (begin == separator) ||
285  (separator == end - 1))
286  {
288  _("Malformed input, could not parse `%s'\n"),
289  begin);
290  GNUNET_free(elements);
291  return;
292  }
293  *separator = 0;
294  /* read the element's key */
295  GNUNET_CRYPTO_hash(begin,
296  strlen(begin),
297  &element.key);
298 
299  /* read the element's value */
300  if (1 !=
301  sscanf(separator + 1,
302  "%" SCNd64 ";",
303  &element.value))
304  {
306  _("Could not convert `%s' to int64_t.\n"),
307  begin);
308  GNUNET_free(elements);
309  return;
310  }
311  element.value = GNUNET_htonll(element.value);
312  elements[i] = element;
313  begin = end + 1;
314  }
315 
316  if (((NULL != input_peer_id) &&
317  (NULL == (computation
319  &session_key,
320  &peer_id,
321  elements, element_count,
323  NULL)))) ||
324  ((NULL == input_peer_id) &&
325  (NULL == (computation
327  &session_key,
328  elements, element_count,
330  NULL)))))
331  {
332  fprintf(stderr,
333  _("Failed to initiate computation, were all keys unique?\n"));
334  GNUNET_free(elements);
335  return;
336  }
337  GNUNET_free(elements);
339  NULL);
340  ret = 0;
341 }
static int ret
Global return value.
static char * input_peer_id
Option -p: destination peer identity for checking message-ids with.
static void shutdown_task(void *cls)
Task run during shutdown.
static int end
Set if we are to shutdown all services (including ARM).
Definition: gnunet-arm.c:34
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_shutdown(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run on shutdown, that is when a CTRL-C signal is received, or when GNUNET_SCHEDULER_shutdown() is being invoked.
Definition: scheduler.c:1284
struct GNUNET_SCALARPRODUCT_ComputationHandle * GNUNET_SCALARPRODUCT_accept_computation(const struct GNUNET_CONFIGURATION_Handle *cfg, const struct GNUNET_HashCode *key, const struct GNUNET_SCALARPRODUCT_Element *elements, uint32_t element_count, GNUNET_SCALARPRODUCT_ContinuationWithStatus cont, void *cont_cls)
Used by Bob&#39;s client to cooperate with Alice,.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
static char * input_session_key
Option -p: destination peer identity for checking message-ids with.
#define _(String)
GNU gettext support macro.
Definition: platform.h:181
static struct GNUNET_HashCode session_key
the session key identifying this computation
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
static struct GNUNET_SCALARPRODUCT_ComputationHandle * computation
our Scalarproduct Computation handle
static void responder_callback(void *cls, enum GNUNET_SCALARPRODUCT_ResponseStatus status)
Callback called if we are initiating a new computation session.
static struct GNUNET_PeerIdentity peer_id
PeerID we want to compute a scalar product with.
uint64_t GNUNET_htonll(uint64_t n)
Convert unsigned 64-bit integer to network byte order.
Definition: common_endian.c:35
int GNUNET_CRYPTO_eddsa_public_key_from_string(const char *enc, size_t enclen, struct GNUNET_CRYPTO_EddsaPublicKey *pub)
Convert a string representing a public key to a public key.
Definition: crypto_ecc.c:501
static void requester_callback(void *cls, enum GNUNET_SCALARPRODUCT_ResponseStatus status, gcry_mpi_t result)
Callback called if we are initiating a new computation session.
static char * input_elements
Option -e: vector to calculate a scalarproduct with.
#define LOG(kind,...)
struct GNUNET_SCALARPRODUCT_ComputationHandle * GNUNET_SCALARPRODUCT_start_computation(const struct GNUNET_CONFIGURATION_Handle *cfg, const struct GNUNET_HashCode *session_key, const struct GNUNET_PeerIdentity *peer, const struct GNUNET_SCALARPRODUCT_Element *elements, uint32_t element_count, GNUNET_SCALARPRODUCT_DatumProcessor cont, void *cont_cls)
Request by Alice&#39;s client for computing a scalar product.
#define GNUNET_malloc(size)
Wrapper around malloc.
An element key-value pair for scalarproduct.
#define GNUNET_free(ptr)
Wrapper around free.
struct GNUNET_CRYPTO_EddsaPublicKey public_key
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◆ main()

int main ( int  argc,
char *const *  argv 
)

The main function to the scalarproduct client.

Parameters
argcnumber of arguments from the command line
argvcommand line arguments
Returns
0 ok, 1 on error

Definition at line 352 of file gnunet-scalarproduct.c.

References gettext_noop, GNUNET_GETOPT_OPTION_END, GNUNET_GETOPT_option_string(), GNUNET_OK, GNUNET_PROGRAM_run(), input_elements, input_peer_id, input_session_key, ret, and run().

353 {
356  "elements",
357  "\"key1,val1;key2,val2;...,keyn,valn;\"",
358  gettext_noop("A comma separated list of elements to compare as vector with our remote peer."),
359  &input_elements),
360 
362  "elements",
363  "\"key1,val1;key2,val2;...,keyn,valn;\"",
364  gettext_noop("A comma separated list of elements to compare as vector with our remote peer."),
365  &input_elements),
366 
368  "peer",
369  "PEERID",
370  gettext_noop("[Optional] peer to calculate our scalarproduct with. If this parameter is not given, the service will wait for a remote peer to compute the request."),
371  &input_peer_id),
372 
374  "key",
375  "TRANSACTION_ID",
376  gettext_noop("Transaction ID shared with peer."),
378 
380  };
381 
382  return (GNUNET_OK ==
383  GNUNET_PROGRAM_run(argc,
384  argv,
385  "gnunet-scalarproduct",
386  gettext_noop("Calculate the Vectorproduct with a GNUnet peer."),
387  options, &run, NULL)) ? ret : 1;
388 }
static int ret
Global return value.
static char * input_peer_id
Option -p: destination peer identity for checking message-ids with.
struct GNUNET_GETOPT_CommandLineOption options[]
Definition: 002.c:5
static void run(void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
Main function that will be run by the scheduler.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
Definition of a command line option.
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_OPTION_END
Definition: 002.c:13
static char * input_session_key
Option -p: destination peer identity for checking message-ids with.
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_option_string(char shortName, const char *name, const char *argumentHelp, const char *description, char **str)
Allow user to specify a string.
int GNUNET_PROGRAM_run(int argc, char *const *argv, const char *binaryName, const char *binaryHelp, const struct GNUNET_GETOPT_CommandLineOption *options, GNUNET_PROGRAM_Main task, void *task_cls)
Run a standard GNUnet command startup sequence (initialize loggers and configuration, parse options).
Definition: program.c:367
static char * input_elements
Option -e: vector to calculate a scalarproduct with.
#define gettext_noop(String)
Definition: gettext.h:69
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Variable Documentation

◆ session_key

struct GNUNET_HashCode session_key
static

the session key identifying this computation

Definition at line 42 of file gnunet-scalarproduct.c.

Referenced by GNUNET_SCALARPRODUCT_accept_computation(), GNUNET_SCALARPRODUCT_start_computation(), requester_callback(), responder_callback(), and run().

◆ peer_id

struct GNUNET_PeerIdentity peer_id
static

PeerID we want to compute a scalar product with.

Definition at line 47 of file gnunet-scalarproduct.c.

Referenced by requester_callback(), and run().

◆ input_peer_id

char* input_peer_id
static

Option -p: destination peer identity for checking message-ids with.

Definition at line 52 of file gnunet-scalarproduct.c.

Referenced by main(), and run().

◆ input_session_key

char* input_session_key
static

Option -p: destination peer identity for checking message-ids with.

Definition at line 57 of file gnunet-scalarproduct.c.

Referenced by main(), and run().

◆ input_elements

char* input_elements
static

Option -e: vector to calculate a scalarproduct with.

Definition at line 62 of file gnunet-scalarproduct.c.

Referenced by main(), and run().

◆ ret

int ret = -1
static

Global return value.

Definition at line 67 of file gnunet-scalarproduct.c.

Referenced by main(), requester_callback(), responder_callback(), run(), and shutdown_task().

◆ computation

struct GNUNET_SCALARPRODUCT_ComputationHandle* computation
static

our Scalarproduct Computation handle

Definition at line 72 of file gnunet-scalarproduct.c.