plugin_reclaim_credential_pabc.c File Reference

reclaim-credential-plugin-pabc attribute plugin to provide the API for pabc credentials. More...

#include "gnunet_common.h"
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_reclaim_plugin.h"
#include <inttypes.h>
#include <jansson.h>
#include <pabc/pabc.h>
#include "pabc_helper.h"

Include dependency graph for plugin_reclaim_credential_pabc.c:

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Functions
static char *	pabc_value_to_string (void *cls, uint32_t type, const void *data, size_t data_size)
	Convert the 'value' of an credential to a string. More...
static int	pabc_string_to_value (void *cls, uint32_t type, const char *s, void **data, size_t *data_size)
	Convert human-readable version of a 'value' of an credential to the binary representation. More...
static uint32_t	pabc_typename_to_number (void *cls, const char *pabc_typename)
	Convert a type name to the corresponding number. More...
static const char *	pabc_number_to_typename (void *cls, uint32_t type)
	Convert a type number (i.e. More...
static void	inspect_attrs (char const *const key, char const *const value, void *ctx)
static struct GNUNET_RECLAIM_AttributeList *	pabc_parse_attributes (void *cls, const char *data, size_t data_size)
	Parse a pabc and return the respective claim value as Attribute. More...
static struct GNUNET_RECLAIM_AttributeList *	pabc_parse_attributes_c (void *cls, const struct GNUNET_RECLAIM_Credential *cred)
	Parse a pabc and return the respective claim value as Attribute. More...
static struct GNUNET_RECLAIM_AttributeList *	pabc_parse_attributes_p (void *cls, const struct GNUNET_RECLAIM_Presentation *cred)
	Parse a pabc and return the respective claim value as Attribute. More...
static char *	pabc_get_issuer (void *cls, const char *data, size_t data_size)
	Parse a pabc and return the issuer. More...
static char *	pabc_get_issuer_c (void *cls, const struct GNUNET_RECLAIM_Credential *cred)
	Parse a pabc and return the issuer. More...
static char *	pabc_get_issuer_p (void *cls, const struct GNUNET_RECLAIM_Presentation *cred)
	Parse a pabc and return the issuer. More...
static enum GNUNET_GenericReturnValue	pabc_get_expiration (void *cls, const char *data, size_t data_size, struct GNUNET_TIME_Absolute *exp)
	Parse a pabc and return the expiration. More...
static enum GNUNET_GenericReturnValue	pabc_get_expiration_c (void *cls, const struct GNUNET_RECLAIM_Credential *cred, struct GNUNET_TIME_Absolute *exp)
	Parse a pabc and return the expiration. More...
static enum GNUNET_GenericReturnValue	pabc_get_expiration_p (void *cls, const struct GNUNET_RECLAIM_Presentation *cred, struct GNUNET_TIME_Absolute *exp)
	Parse a pabc and return the expiration. More...
static enum GNUNET_GenericReturnValue	pabc_create_presentation (void *cls, const struct GNUNET_RECLAIM_Credential *credential, const struct GNUNET_RECLAIM_AttributeList *attrs, struct GNUNET_RECLAIM_Presentation **presentation)
void *	libgnunet_plugin_reclaim_credential_pabc_init (void *cls)
	Entry point for the plugin. More...
void *	libgnunet_plugin_reclaim_credential_pabc_done (void *cls)
	Exit point from the plugin. More...

Variables
struct {
const char *   name
uint32_t   number
}	pabc_cred_name_map []
	Mapping of credential type numbers to human-readable credential type names. More...

Detailed Description

reclaim-credential-plugin-pabc attribute plugin to provide the API for pabc credentials.

Author

Martin Schanzenbach

Definition in file plugin_reclaim_credential_pabc.c.

Function Documentation

pabc_value_to_string()

static char * pabc_value_to_string ( void *  cls, uint32_t  type, const void *  data, size_t  data_size  )

static

Convert the 'value' of an credential to a string.

Parameters

cls	closure, unused
type	type of the credential
data	value in binary encoding
data_size	number of bytes in data

Returns

NULL on error, otherwise human-readable representation of the value

Definition at line 47 of file plugin_reclaim_credential_pabc.c.

{
  switch (type)
  {
  case GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC:
    return GNUNET_strndup (data, data_size);
 
  default:
    return NULL;
  }
}

References data, data_size, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, GNUNET_strndup, and type.

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_string_to_value()

static int pabc_string_to_value ( void *  cls, uint32_t  type, const char *  s, void **  data, size_t *  data_size  )

static

Convert human-readable version of a 'value' of an credential to the binary representation.

Parameters

cls	closure, unused
type	type of the credential
s	human-readable string
data	set to value in binary encoding (will be allocated)
data_size	set to number of bytes in data

Returns

GNUNET_OK on success

Definition at line 75 of file plugin_reclaim_credential_pabc.c.

{
  if (NULL == s)
    return GNUNET_SYSERR;
  switch (type)
  {
  case GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC:
    *data = GNUNET_strdup (s);
    *data_size = strlen (s) + 1;
    return GNUNET_OK;
 
  default:
    return GNUNET_SYSERR;
  }
}

References data, data_size, GNUNET_OK, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, GNUNET_strdup, GNUNET_SYSERR, and type.

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_typename_to_number()

static uint32_t pabc_typename_to_number ( void *  cls, const char *  pabc_typename  )

static

Convert a type name to the corresponding number.

Parameters

cls	closure, unused
pabc_typename	name to convert

Returns

corresponding number, UINT32_MAX on error

Definition at line 115 of file plugin_reclaim_credential_pabc.c.

{
  unsigned int i;
 
  i = 0;
  while ((NULL != pabc_cred_name_map[i].name) &&
         (0 != strcasecmp (pabc_typename, pabc_cred_name_map[i].name)))
    i++;
  return pabc_cred_name_map[i].number;
}

References name, and pabc_cred_name_map.

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_number_to_typename()

static const char * pabc_number_to_typename ( void *  cls, uint32_t  type  )

static

Convert a type number (i.e.

1) to the corresponding type string

Parameters

cls	closure, unused
type	number of a type to convert

Returns

corresponding typestring, NULL on error

Definition at line 135 of file plugin_reclaim_credential_pabc.c.

{
  unsigned int i;
 
  i = 0;
  while ((NULL != pabc_cred_name_map[i].name) && (type !=
                                                  pabc_cred_name_map[i].
                                                  number))
    i++;
  return pabc_cred_name_map[i].name;
}

References name, number, pabc_cred_name_map, and type.

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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inspect_attrs()

static void inspect_attrs ( char const *const  key, char const *const  value, void *  ctx  )

static

Definition at line 149 of file plugin_reclaim_credential_pabc.c.

{
  struct GNUNET_RECLAIM_AttributeList *attrs = ctx;
 
  if (NULL == value)
    return;
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Found attribute in PABC credential: `%s': `%s'\n",
              key, value);
  if (0 == strcmp (key, "expiration"))
    return;
  if (0 == strcmp (key, "issuer"))
    return;
  if (0 == strcmp (key, "subject"))
    return;
  GNUNET_RECLAIM_attribute_list_add (attrs,
                                     key,
                                     NULL,
                                     GNUNET_RECLAIM_ATTRIBUTE_TYPE_STRING,
                                     value,
                                     strlen (value));
}

References ctx, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GNUNET_RECLAIM_attribute_list_add(), GNUNET_RECLAIM_ATTRIBUTE_TYPE_STRING, key, and value.

Referenced by pabc_parse_attributes().

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pabc_parse_attributes()

static struct GNUNET_RECLAIM_AttributeList * pabc_parse_attributes ( void *  cls, const char *  data, size_t  data_size  )

static

Parse a pabc and return the respective claim value as Attribute.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a GNUNET_RECLAIM_Attribute, containing the new value

Definition at line 183 of file plugin_reclaim_credential_pabc.c.

{
  struct GNUNET_RECLAIM_AttributeList *attrs;
 
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Collecting PABC attributes...\n");
  attrs = GNUNET_new (struct GNUNET_RECLAIM_AttributeList);
  GNUNET_assert (PABC_OK ==
                 pabc_cred_inspect_credential (data,
                                               &inspect_attrs, attrs));
  return attrs;
}

References data, GNUNET_assert, GNUNET_ERROR_TYPE_DEBUG, GNUNET_log, GNUNET_new, and inspect_attrs().

Referenced by pabc_parse_attributes_c(), and pabc_parse_attributes_p().

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pabc_parse_attributes_c()

static struct GNUNET_RECLAIM_AttributeList * pabc_parse_attributes_c ( void *  cls, const struct GNUNET_RECLAIM_Credential *  cred  )

static

Parse a pabc and return the respective claim value as Attribute.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a GNUNET_RECLAIM_Attribute, containing the new value

Definition at line 207 of file plugin_reclaim_credential_pabc.c.

{
  if (cred->type != GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC)
    return NULL;
  return pabc_parse_attributes (cls, cred->data, cred->data_size);
}

References cred, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, and pabc_parse_attributes().

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_parse_attributes_p()

static struct GNUNET_RECLAIM_AttributeList * pabc_parse_attributes_p ( void *  cls, const struct GNUNET_RECLAIM_Presentation *  cred  )

static

Parse a pabc and return the respective claim value as Attribute.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a GNUNET_RECLAIM_Attribute, containing the new value

Definition at line 224 of file plugin_reclaim_credential_pabc.c.

{
  if (cred->type != GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC)
    return NULL;
  return pabc_parse_attributes (cls, cred->data, cred->data_size);
}

References cred, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, and pabc_parse_attributes().

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_get_issuer()

static char * pabc_get_issuer ( void *  cls, const char *  data, size_t  data_size  )

static

Parse a pabc and return the issuer.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a string, containing the isser

Definition at line 241 of file plugin_reclaim_credential_pabc.c.

{
  char *res;
  if (PABC_OK != pabc_cred_get_attr_by_name_from_cred (data,
                                                       "issuer",
                                                       &res))
    return NULL;
  return res;
}

References data, and res.

Referenced by pabc_get_issuer_c(), and pabc_get_issuer_p().

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pabc_get_issuer_c()

static char * pabc_get_issuer_c ( void *  cls, const struct GNUNET_RECLAIM_Credential *  cred  )

static

Parse a pabc and return the issuer.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a string, containing the isser

Definition at line 262 of file plugin_reclaim_credential_pabc.c.

{
  if (GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC != cred->type)
    return NULL;
  return pabc_get_issuer (cls, cred->data, cred->data_size);
}

References cred, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, and pabc_get_issuer().

Referenced by libgnunet_plugin_reclaim_credential_pabc_init(), and pabc_create_presentation().

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pabc_get_issuer_p()

static char * pabc_get_issuer_p ( void *  cls, const struct GNUNET_RECLAIM_Presentation *  cred  )

static

Parse a pabc and return the issuer.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a string, containing the isser

Definition at line 279 of file plugin_reclaim_credential_pabc.c.

{
  if (GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC != cred->type)
    return NULL;
  return pabc_get_issuer (cls, cred->data, cred->data_size);
}

References cred, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, and pabc_get_issuer().

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_get_expiration()

static enum GNUNET_GenericReturnValue pabc_get_expiration ( void *  cls, const char *  data, size_t  data_size, struct GNUNET_TIME_Absolute *  exp  )

static

Parse a pabc and return the expiration.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a string, containing the isser

Definition at line 296 of file plugin_reclaim_credential_pabc.c.

{
  char *exp_str;
  uint64_t exp_i;
 
  if (PABC_OK != pabc_cred_get_attr_by_name_from_cred (data,
                                                       "expiration",
                                                       &exp_str))
    return GNUNET_SYSERR;
 
  if (1 != sscanf (exp_str, "%llu", &exp_i))
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Invalid expiration `%s'\n", exp_str);
    GNUNET_free (exp_str);
    return GNUNET_SYSERR;
  }
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Converted expiration string `%s' to %llu",
              exp_str, exp_i);
 
  GNUNET_free (exp_str);
  exp->abs_value_us = exp_i * 1000 * 1000;
  return GNUNET_OK;
}

References GNUNET_TIME_Absolute::abs_value_us, data, GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_free, GNUNET_log, GNUNET_OK, and GNUNET_SYSERR.

Referenced by pabc_get_expiration_c(), and pabc_get_expiration_p().

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pabc_get_expiration_c()

static enum GNUNET_GenericReturnValue pabc_get_expiration_c ( void *  cls, const struct GNUNET_RECLAIM_Credential *  cred, struct GNUNET_TIME_Absolute *  exp  )

static

Parse a pabc and return the expiration.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a string, containing the isser

Definition at line 334 of file plugin_reclaim_credential_pabc.c.

{
  if (cred->type != GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC)
    return GNUNET_NO;
  return pabc_get_expiration (cls, cred->data, cred->data_size, exp);
}

References cred, GNUNET_NO, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, and pabc_get_expiration().

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_get_expiration_p()

static enum GNUNET_GenericReturnValue pabc_get_expiration_p ( void *  cls, const struct GNUNET_RECLAIM_Presentation *  cred, struct GNUNET_TIME_Absolute *  exp  )

static

Parse a pabc and return the expiration.

Parameters

cls	the plugin
cred	the pabc credential

Returns

a string, containing the isser

Definition at line 352 of file plugin_reclaim_credential_pabc.c.

{
  if (cred->type != GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC)
    return GNUNET_NO;
  return pabc_get_expiration (cls, cred->data, cred->data_size, exp);
}

References cred, GNUNET_NO, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, and pabc_get_expiration().

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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pabc_create_presentation()

static enum GNUNET_GenericReturnValue pabc_create_presentation ( void *  cls, const struct GNUNET_RECLAIM_Credential *  credential, const struct GNUNET_RECLAIM_AttributeList *  attrs, struct GNUNET_RECLAIM_Presentation **  presentation  )

static

Definition at line 363 of file plugin_reclaim_credential_pabc.c.

{
  struct pabc_context *ctx = NULL;
  struct pabc_user_context *usr_ctx = NULL;
  struct pabc_public_parameters *pp = NULL;
  struct pabc_credential *cred = NULL;
  struct pabc_blinded_proof *proof = NULL;
  struct GNUNET_RECLAIM_AttributeListEntry *ale;
  char *issuer;
  char *subject;
  enum pabc_status status;
 
  if (GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC != credential->type)
    return GNUNET_NO;
 
 
  PABC_ASSERT (pabc_new_ctx (&ctx));
  issuer = pabc_get_issuer_c (cls, credential);
  if (NULL == issuer)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "No issuer found in credential\n");
    pabc_free_ctx (&ctx);
    return GNUNET_SYSERR;
  }
  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Got issuer for credential: %s\n", issuer);
  status = PABC_load_public_parameters (ctx, issuer, &pp);
  if (status != PABC_OK)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to read public parameters.\n");
    pabc_free_ctx (&ctx);
    GNUNET_free (issuer);
    return GNUNET_SYSERR;
  }
  if (PABC_OK != pabc_cred_get_attr_by_name_from_cred (credential->data,
                                                       "subject",
                                                       &subject))
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to get subject.\n");
    pabc_free_ctx (&ctx);
    GNUNET_free (issuer);
    return GNUNET_SYSERR;
  }
  status = PABC_read_usr_ctx (subject, issuer, ctx, pp, &usr_ctx);
  GNUNET_free (issuer);
  GNUNET_free (subject);
  if (PABC_OK != status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to read user context.\n");
    pabc_free_public_parameters (ctx, &pp);
    return GNUNET_SYSERR;
  }
 
  status = pabc_new_credential (ctx, pp, &cred);
  if (status != PABC_OK)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to allocate credential.\n");
    pabc_free_user_context (ctx, pp, &usr_ctx);
    pabc_free_public_parameters (ctx, &pp);
    return GNUNET_SYSERR;
  }
 
  status = pabc_decode_credential (ctx, pp, cred, credential->data);
  if (status != PABC_OK)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to decode credential.\n");
    pabc_free_credential (ctx, pp, &cred);
    pabc_free_user_context (ctx, pp, &usr_ctx);
    pabc_free_public_parameters (ctx, &pp);
    return GNUNET_SYSERR;
  }
 
  status = pabc_new_proof (ctx, pp, &proof);
  if (status != PABC_OK)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to allocate proof.\n");
    pabc_free_credential (ctx, pp, &cred);
    pabc_free_user_context (ctx, pp, &usr_ctx);
    pabc_free_public_parameters (ctx, &pp);
    return GNUNET_SYSERR;
  }
 
  // now we can parse the attributes to disclose and configure the proof
  for (ale = attrs->list_head; NULL != ale; ale = ale->next)
  {
    status = pabc_set_disclosure_by_attribute_name (ctx, pp, proof,
                                                    ale->attribute->name,
                                                    PABC_DISCLOSED, cred);
    if (status != PABC_OK)
    {
      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                  "Failed to configure proof.\n");
      pabc_free_credential (ctx, pp, &cred);
      pabc_free_user_context (ctx, pp, &usr_ctx);
      pabc_free_public_parameters (ctx, &pp);
      return GNUNET_SYSERR;
    }
  }
 
  // and finally -> sign the proof
  status = pabc_gen_proof (ctx, usr_ctx, pp, proof, cred);
  if (status != PABC_OK)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to sign proof.\n");
    pabc_free_proof (ctx, pp, &proof);
    pabc_free_credential (ctx, pp, &cred);
    pabc_free_user_context (ctx, pp, &usr_ctx);
    pabc_free_public_parameters (ctx, &pp);
    return GNUNET_SYSERR;
  }
  // print the result
  char *json = NULL;
  char *ppid = NULL;
  char *userid = NULL;
  GNUNET_assert (PABC_OK == pabc_cred_get_userid_from_cred (credential->data,
                                                            &userid));
  GNUNET_assert (PABC_OK == pabc_cred_get_ppid_from_cred (credential->data,
                                                          &ppid));
  pabc_cred_encode_proof (ctx, pp, proof, userid, ppid,  &json);
  GNUNET_free (ppid);
  GNUNET_free (userid);
  if (PABC_OK != status)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Failed to serialize proof.\n");
    pabc_free_proof (ctx, pp, &proof);
    pabc_free_credential (ctx, pp, &cred);
    pabc_free_user_context (ctx, pp, &usr_ctx);
    pabc_free_public_parameters (ctx, &pp);
    return GNUNET_SYSERR;
  }
  char *json_enc;
  GNUNET_STRINGS_base64_encode (json,
                                strlen (json) + 1,
                                &json_enc);
  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
              "Presentation: %s\n", json_enc);
  // clean up
  *presentation = GNUNET_RECLAIM_presentation_new (
    GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC,
    json_enc,
    strlen (json_enc) + 1);
  GNUNET_free (json_enc);
  PABC_FREE_NULL (json);
  pabc_free_proof (ctx, pp, &proof);
  pabc_free_credential (ctx, pp, &cred);
  pabc_free_user_context (ctx, pp, &usr_ctx);
  pabc_free_public_parameters (ctx, &pp);
  return GNUNET_OK;
}

References GNUNET_RECLAIM_AttributeListEntry::attribute, cred, credential, ctx, GNUNET_assert, GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_ERROR, GNUNET_free, GNUNET_log, GNUNET_NO, GNUNET_OK, GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC, GNUNET_RECLAIM_presentation_new(), GNUNET_STRINGS_base64_encode(), GNUNET_SYSERR, GNUNET_RECLAIM_AttributeList::list_head, GNUNET_RECLAIM_Attribute::name, GNUNET_RECLAIM_AttributeListEntry::next, pabc_get_issuer_c(), PABC_load_public_parameters(), PABC_read_usr_ctx(), proof, status, and subject.

Referenced by libgnunet_plugin_reclaim_credential_pabc_init().

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libgnunet_plugin_reclaim_credential_pabc_init()

void * libgnunet_plugin_reclaim_credential_pabc_init

(

void *

cls

)

Entry point for the plugin.

Parameters

cls

NULL

Returns

the exported block API

Definition at line 535 of file plugin_reclaim_credential_pabc.c.

{
  struct GNUNET_RECLAIM_CredentialPluginFunctions *api;
 
  api = GNUNET_new (struct GNUNET_RECLAIM_CredentialPluginFunctions);
  api->value_to_string = &pabc_value_to_string;
  api->string_to_value = &pabc_string_to_value;
  api->typename_to_number = &pabc_typename_to_number;
  api->number_to_typename = &pabc_number_to_typename;
  api->get_attributes = &pabc_parse_attributes_c;
  api->get_issuer = &pabc_get_issuer_c;
  api->get_expiration = &pabc_get_expiration_c;
  api->value_to_string_p = &pabc_value_to_string;
  api->string_to_value_p = &pabc_string_to_value;
  api->typename_to_number_p = &pabc_typename_to_number;
  api->number_to_typename_p = &pabc_number_to_typename;
  api->get_attributes_p = &pabc_parse_attributes_p;
  api->get_issuer_p = &pabc_get_issuer_p;
  api->get_expiration_p = &pabc_get_expiration_p;
  api->create_presentation = &pabc_create_presentation;
  return api;
}

References GNUNET_RECLAIM_CredentialPluginFunctions::create_presentation, GNUNET_RECLAIM_CredentialPluginFunctions::get_attributes, GNUNET_RECLAIM_CredentialPluginFunctions::get_attributes_p, GNUNET_RECLAIM_CredentialPluginFunctions::get_expiration, GNUNET_RECLAIM_CredentialPluginFunctions::get_expiration_p, GNUNET_RECLAIM_CredentialPluginFunctions::get_issuer, GNUNET_RECLAIM_CredentialPluginFunctions::get_issuer_p, GNUNET_new, GNUNET_RECLAIM_CredentialPluginFunctions::number_to_typename, GNUNET_RECLAIM_CredentialPluginFunctions::number_to_typename_p, pabc_create_presentation(), pabc_get_expiration_c(), pabc_get_expiration_p(), pabc_get_issuer_c(), pabc_get_issuer_p(), pabc_number_to_typename(), pabc_parse_attributes_c(), pabc_parse_attributes_p(), pabc_string_to_value(), pabc_typename_to_number(), pabc_value_to_string(), GNUNET_RECLAIM_CredentialPluginFunctions::string_to_value, GNUNET_RECLAIM_CredentialPluginFunctions::string_to_value_p, GNUNET_RECLAIM_CredentialPluginFunctions::typename_to_number, GNUNET_RECLAIM_CredentialPluginFunctions::typename_to_number_p, GNUNET_RECLAIM_CredentialPluginFunctions::value_to_string, and GNUNET_RECLAIM_CredentialPluginFunctions::value_to_string_p.

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libgnunet_plugin_reclaim_credential_pabc_done()

void * libgnunet_plugin_reclaim_credential_pabc_done

(

void *

cls

)

Exit point from the plugin.

Parameters

cls	the return value from libgnunet_plugin_block_test_init()

Returns

NULL

Definition at line 568 of file plugin_reclaim_credential_pabc.c.

{
  struct GNUNET_RECLAIM_CredentialPluginFunctions *api = cls;
 
  GNUNET_free (api);
  return NULL;
}

References GNUNET_RECLAIM_CredentialPluginFunctions::cls, and GNUNET_free.

Variable Documentation

name

const char* name

Definition at line 102 of file plugin_reclaim_credential_pabc.c.

Referenced by pabc_number_to_typename(), and pabc_typename_to_number().

number

uint32_t number

Definition at line 103 of file plugin_reclaim_credential_pabc.c.

Referenced by pabc_number_to_typename().

struct { ... } pabc_cred_name_map[]

Initial value:

= { { "PABC", GNUNET_RECLAIM_CREDENTIAL_TYPE_PABC },
                           { NULL, UINT32_MAX } }

Mapping of credential type numbers to human-readable credential type names.

Referenced by pabc_number_to_typename(), and pabc_typename_to_number().