2 This file is part of GNUnet.
3 Copyright (C) 2012-2015 GNUnet e.V.
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 Boston, MA 02110-1301, USA.
21 * @author Martin Schanzenbach
22 * @file src/identity-provider/gnunet-service-identity-provider.c
23 * @brief Identity Token Service
27 #include "gnunet_util_lib.h"
28 #include "gnunet_constants.h"
29 #include "gnunet_protocols.h"
30 #include "gnunet_identity_service.h"
31 #include "gnunet_gnsrecord_lib.h"
32 #include "gnunet_namestore_service.h"
33 #include "gnunet_credential_service.h"
34 #include "gnunet_statistics_service.h"
35 #include "gnunet_gns_service.h"
36 #include "gnunet_identity_provider_plugin.h"
37 #include "gnunet_signatures.h"
38 #include "identity_provider.h"
39 #include "identity_token.h"
40 #include "identity_attribute.h"
49 * Normal operation state
51 #define STATE_POST_INIT 1
54 * Minimum interval between updates
56 #define MIN_WAIT_TIME GNUNET_TIME_UNIT_MINUTES
59 * Standard token expiration time
61 #define DEFAULT_TOKEN_EXPIRATION_INTERVAL GNUNET_TIME_UNIT_HOURS
66 static struct GNUNET_IDENTITY_Handle *identity_handle;
71 static struct GNUNET_IDENTITY_PROVIDER_PluginFunctions *TKT_database;
76 static char *db_lib_name;
79 * Token expiration interval
81 static struct GNUNET_TIME_Relative token_expiration_interval;
86 static struct GNUNET_NAMESTORE_Handle *ns_handle;
91 static struct GNUNET_GNS_Handle *gns_handle;
96 static struct GNUNET_CREDENTIAL_Handle *credential_handle;
101 static struct GNUNET_NAMESTORE_QueueEntry *ns_qe;
106 static struct GNUNET_NAMESTORE_ZoneIterator *ns_it;
111 static struct GNUNET_SCHEDULER_Task *timeout_task;
116 static struct GNUNET_SCHEDULER_Task *update_task;
120 * Currently processed token
122 static struct IdentityToken *token;
125 * Label for currently processed token
130 * Scopes for processed token
135 * Handle to the statistics service.
137 static struct GNUNET_STATISTICS_Handle *stats;
142 static const struct GNUNET_CONFIGURATION_Handle *cfg;
150 * A ticket iteration operation.
152 struct TicketIteration
157 struct TicketIteration *next;
162 struct TicketIteration *prev;
165 * Client which intiated this zone iteration
167 struct IdpClient *client;
170 * Key of the identity we are iterating over.
172 struct GNUNET_CRYPTO_EcdsaPublicKey identity;
175 * Identity is audience
177 uint32_t is_audience;
180 * The operation id fot the iteration in the response for the client
185 * Offset of the iteration used to address next result of the
186 * iteration in the store
188 * Initialy set to 0 in handle_iteration_start
189 * Incremented with by every call to handle_iteration_next
198 * Callback after an ABE bootstrap
201 * @param abe_key the ABE key that exists or was created
204 (*AbeBootstrapResult) (void *cls,
205 struct GNUNET_CRYPTO_AbeMasterKey *abe_key);
208 struct AbeBootstrapHandle
211 * Function to call when finished
213 AbeBootstrapResult proc;
221 * Key of the zone we are iterating over.
223 struct GNUNET_CRYPTO_EcdsaPrivateKey identity;
226 * Namestore Queue Entry
228 struct GNUNET_NAMESTORE_QueueEntry *ns_qe;
231 * The issuer egos ABE master key
233 struct GNUNET_CRYPTO_AbeMasterKey *abe_key;
237 * An attribute iteration operation.
239 struct AttributeIterator
242 * Next element in the DLL
244 struct AttributeIterator *next;
247 * Previous element in the DLL
249 struct AttributeIterator *prev;
252 * IDP client which intiated this zone iteration
254 struct IdpClient *client;
257 * Key of the zone we are iterating over.
259 struct GNUNET_CRYPTO_EcdsaPrivateKey identity;
262 * The issuer egos ABE master key
264 struct GNUNET_CRYPTO_AbeMasterKey *abe_key;
269 struct GNUNET_NAMESTORE_ZoneIterator *ns_it;
272 * The operation id fot the zone iteration in the response for the client
289 struct GNUNET_SERVICE_Client *client;
292 * Message queue for transmission to @e client
294 struct GNUNET_MQ_Handle *mq;
298 * Attribute iteration operations in
299 * progress initiated by this client
301 struct AttributeIterator *op_head;
305 * Attribute iteration operations
306 * in progress initiated by this client
308 struct AttributeIterator *op_tail;
311 * Head of DLL of ticket iteration ops
313 struct TicketIteration *ticket_iter_head;
316 * Tail of DLL of ticket iteration ops
318 struct TicketIteration *ticket_iter_tail;
323 struct AttributeStoreHandle
329 struct IdpClient *client;
334 struct GNUNET_CRYPTO_EcdsaPrivateKey identity;
339 struct GNUNET_CRYPTO_EcdsaPublicKey identity_pkey;
342 * The issuer egos ABE master key
344 struct GNUNET_CRYPTO_AbeMasterKey *abe_key;
349 struct GNUNET_NAMESTORE_QueueEntry *ns_qe;
352 * The attribute to store
354 struct GNUNET_IDENTITY_PROVIDER_Attribute *attribute;
364 struct VerifiedAttributeEntry
369 struct VerifiedAttributeEntry *prev;
374 struct VerifiedAttributeEntry *next;
382 struct ParallelLookup;
383 struct ParallelLookup2;
385 struct ConsumeTicketHandle
391 struct IdpClient *client;
396 struct GNUNET_IDENTITY_PROVIDER_Ticket2 ticket;
401 struct GNUNET_GNS_LookupRequest *lookup_request;
406 struct GNUNET_CRYPTO_EcdsaPrivateKey identity;
411 struct GNUNET_CRYPTO_EcdsaPublicKey identity_pub;
416 struct ParallelLookup2 *parallel_lookups_head;
421 struct ParallelLookup2 *parallel_lookups_tail;
426 struct GNUNET_SCHEDULER_Task *kill_task;
431 struct GNUNET_CRYPTO_AbeKey *key;
436 struct GNUNET_IDENTITY_PROVIDER_AttributeList *attrs;
444 struct ParallelLookup2
446 struct ParallelLookup2 *next;
448 struct ParallelLookup2 *prev;
450 struct GNUNET_GNS_LookupRequest *lookup_request;
452 struct ConsumeTicketHandle *handle;
458 struct ExchangeHandle
464 struct IdpClient *client;
469 struct TokenTicket *ticket;
474 struct IdentityToken *token;
479 struct GNUNET_GNS_LookupRequest *lookup_request;
484 struct GNUNET_CRYPTO_EcdsaPrivateKey aud_privkey;
487 * ParallelLookups DLL
489 struct ParallelLookup *parallel_lookups_head;
490 struct ParallelLookup *parallel_lookups_tail;
492 struct GNUNET_SCHEDULER_Task *kill_task;
493 struct GNUNET_CRYPTO_AbeKey *key;
506 struct ParallelLookup
508 struct ParallelLookup *next;
510 struct ParallelLookup *prev;
512 struct GNUNET_GNS_LookupRequest *lookup_request;
514 struct ExchangeHandle *handle;
520 struct TicketIssueHandle
526 struct IdpClient *client;
529 * Attributes to issue
531 struct GNUNET_IDENTITY_PROVIDER_AttributeList *attrs;
536 struct GNUNET_CRYPTO_EcdsaPrivateKey identity;
541 struct GNUNET_IDENTITY_PROVIDER_Ticket2 ticket;
546 struct GNUNET_NAMESTORE_QueueEntry *ns_qe;
564 struct IdpClient *client;
569 struct GNUNET_CRYPTO_EcdsaPrivateKey iss_key;
574 struct GNUNET_CRYPTO_EcdsaPublicKey iss_pkey;
579 struct GNUNET_CRYPTO_EcdsaPublicKey aud_key;
582 * The issuer egos ABE master key
584 struct GNUNET_CRYPTO_AbeMasterKey *abe_key;
589 struct GNUNET_TIME_Absolute expiration;
599 struct VerifiedAttributeEntry *v_attr_head;
604 struct VerifiedAttributeEntry *v_attr_tail;
614 struct GNUNET_NAMESTORE_ZoneIterator *ns_it;
619 struct GNUNET_CREDENTIAL_Request *credential_request;
624 struct GNUNET_CONTAINER_MultiHashMap *attr_map;
629 struct IdentityToken *token;
634 struct TokenTicket *ticket;
639 struct GNUNET_NAMESTORE_QueueEntry *ns_qe;
642 * The label the token is stored under
653 * DLL for ego handles to egos containing the ID_ATTRS in a map in json_t format
661 struct EgoEntry *next;
666 struct EgoEntry *prev;
671 struct GNUNET_IDENTITY_Ego *ego;
674 * Attribute map. Contains the attributes as json_t
676 struct GNUNET_CONTAINER_MultiHashMap *attr_map;
686 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
690 GNUNET_STATISTICS_destroy (stats, GNUNET_NO);
693 GNUNET_break (NULL == GNUNET_PLUGIN_unload (db_lib_name,
695 GNUNET_free (db_lib_name);
697 if (NULL != timeout_task)
698 GNUNET_SCHEDULER_cancel (timeout_task);
699 if (NULL != update_task)
700 GNUNET_SCHEDULER_cancel (update_task);
701 if (NULL != identity_handle)
702 GNUNET_IDENTITY_disconnect (identity_handle);
703 if (NULL != gns_handle)
704 GNUNET_GNS_disconnect (gns_handle);
705 if (NULL != credential_handle)
706 GNUNET_CREDENTIAL_disconnect (credential_handle);
708 GNUNET_NAMESTORE_zone_iteration_stop (ns_it);
710 GNUNET_NAMESTORE_cancel (ns_qe);
711 if (NULL != ns_handle)
712 GNUNET_NAMESTORE_disconnect (ns_handle);
724 * @param tc task context
727 do_shutdown (void *cls)
729 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
730 "Shutting down...\n");
735 * Finished storing newly bootstrapped ABE key
738 bootstrap_store_cont (void *cls,
742 struct AbeBootstrapHandle *abh = cls;
743 if (GNUNET_SYSERR == success)
745 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
746 "Failed to bootstrap ABE master %s\n",
748 abh->proc (abh->proc_cls, NULL);
749 GNUNET_free (abh->abe_key);
753 abh->proc (abh->proc_cls, abh->abe_key);
758 * Generates and stores a new ABE key
761 bootstrap_store_task (void *cls)
763 struct AbeBootstrapHandle *abh = cls;
764 struct GNUNET_GNSRECORD_Data rd[1];
766 rd[0].data_size = GNUNET_CRYPTO_cpabe_serialize_master_key (abh->abe_key,
767 (void**)&rd[0].data);
768 rd[0].record_type = GNUNET_GNSRECORD_TYPE_ABE_MASTER;
769 rd[0].flags = GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION | GNUNET_GNSRECORD_RF_PRIVATE;
770 rd[0].expiration_time = GNUNET_TIME_UNIT_HOURS.rel_value_us; //TODO sane?
771 abh->ns_qe = GNUNET_NAMESTORE_records_store (ns_handle,
776 &bootstrap_store_cont,
781 * Error checking for ABE master
784 bootstrap_abe_error (void *cls)
786 struct AbeBootstrapHandle *abh = cls;
788 abh->proc (abh->proc_cls, NULL);
794 * Handle ABE lookup in namestore
797 bootstrap_abe_result (void *cls,
798 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
800 unsigned int rd_count,
801 const struct GNUNET_GNSRECORD_Data *rd)
803 struct AbeBootstrapHandle *abh = cls;
804 struct GNUNET_CRYPTO_AbeMasterKey *abe_key;
807 for (i=0;i<rd_count;i++) {
808 if (GNUNET_GNSRECORD_TYPE_ABE_MASTER != rd[i].record_type)
810 abe_key = GNUNET_CRYPTO_cpabe_deserialize_master_key ((void**)rd[i].data,
812 abh->proc (abh->proc_cls, abe_key);
817 //No ABE master found, bootstrapping...
818 abh->abe_key = GNUNET_CRYPTO_cpabe_create_master_key ();
819 GNUNET_SCHEDULER_add_now (&bootstrap_store_task, abh);
823 * Bootstrap ABE master if it does not yet exists.
824 * Will call the AbeBootstrapResult processor when done.
827 bootstrap_abe (const struct GNUNET_CRYPTO_EcdsaPrivateKey *identity,
828 AbeBootstrapResult proc,
831 struct AbeBootstrapHandle *abh;
833 abh = GNUNET_new (struct AbeBootstrapHandle);
836 abh->identity = *identity;
837 abh->ns_qe = GNUNET_NAMESTORE_records_lookup (ns_handle,
840 &bootstrap_abe_error,
842 &bootstrap_abe_result,
849 static struct GNUNET_MQ_Envelope*
850 create_exchange_result_message (const char* token,
852 uint64_t ticket_nonce,
855 struct GNUNET_MQ_Envelope *env;
856 struct ExchangeResultMessage *erm;
857 uint16_t token_len = strlen (token) + 1;
859 env = GNUNET_MQ_msg_extra (erm,
861 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_EXCHANGE_RESULT);
862 erm->ticket_nonce = htonl (ticket_nonce);
864 GNUNET_memcpy (&erm[1], token, token_len);
869 static struct GNUNET_MQ_Envelope*
870 create_issue_result_message (const char* label,
875 struct GNUNET_MQ_Envelope *env;
876 struct IssueResultMessage *irm;
880 GNUNET_asprintf (&tmp_str, "%s,%s,%s", label, ticket, token);
881 len = strlen (tmp_str) + 1;
882 env = GNUNET_MQ_msg_extra (irm,
884 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ISSUE_RESULT);
886 GNUNET_memcpy (&irm[1], tmp_str, strlen (tmp_str) + 1);
887 GNUNET_free (tmp_str);
892 cleanup_issue_handle (struct IssueHandle *handle)
894 if (NULL != handle->attr_map)
895 GNUNET_CONTAINER_multihashmap_destroy (handle->attr_map);
896 if (NULL != handle->scopes)
897 GNUNET_free (handle->scopes);
898 if (NULL != handle->token)
899 token_destroy (handle->token);
900 if (NULL != handle->ticket)
901 ticket_destroy (handle->ticket);
902 if (NULL != handle->label)
903 GNUNET_free (handle->label);
904 if (NULL != handle->ns_it)
905 GNUNET_NAMESTORE_zone_iteration_stop (handle->ns_it);
906 if (NULL != handle->credential_request)
907 GNUNET_CREDENTIAL_request_cancel (handle->credential_request);
908 GNUNET_free (handle);
912 store_record_issue_cont (void *cls,
916 struct IssueHandle *handle = cls;
917 struct GNUNET_MQ_Envelope *env;
921 handle->ns_qe = NULL;
922 if (GNUNET_SYSERR == success)
924 cleanup_issue_handle (handle);
925 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s\n",
927 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
930 if (GNUNET_OK != ticket_serialize (handle->ticket,
934 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s\n",
935 "Error serializing ticket\n");
936 cleanup_issue_handle (handle);
937 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
940 if (GNUNET_OK != token_to_string (handle->token,
944 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s\n",
945 "Error serializing token\n");
946 GNUNET_free (ticket_str);
947 cleanup_issue_handle (handle);
948 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
951 env = create_issue_result_message (handle->label,
955 GNUNET_MQ_send (handle->client->mq,
957 cleanup_issue_handle (handle);
958 GNUNET_free (ticket_str);
959 GNUNET_free (token_str);
963 create_sym_key_from_ecdh(const struct GNUNET_HashCode *new_key_hash,
964 struct GNUNET_CRYPTO_SymmetricSessionKey *skey,
965 struct GNUNET_CRYPTO_SymmetricInitializationVector *iv)
967 struct GNUNET_CRYPTO_HashAsciiEncoded new_key_hash_str;
969 GNUNET_CRYPTO_hash_to_enc (new_key_hash,
971 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating symmetric rsa key from %s\n", (char*)&new_key_hash_str);
972 static const char ctx_key[] = "gnuid-aes-ctx-key";
973 GNUNET_CRYPTO_kdf (skey, sizeof (struct GNUNET_CRYPTO_SymmetricSessionKey),
974 new_key_hash, sizeof (struct GNUNET_HashCode),
975 ctx_key, strlen (ctx_key),
977 static const char ctx_iv[] = "gnuid-aes-ctx-iv";
978 GNUNET_CRYPTO_kdf (iv, sizeof (struct GNUNET_CRYPTO_SymmetricInitializationVector),
979 new_key_hash, sizeof (struct GNUNET_HashCode),
980 ctx_iv, strlen (ctx_iv),
986 serialize_abe_keyinfo (const struct IssueHandle *handle,
987 const struct GNUNET_CRYPTO_AbeKey *rp_key,
988 struct GNUNET_CRYPTO_EcdhePrivateKey **ecdh_privkey,
992 char *serialized_key;
994 struct GNUNET_CRYPTO_EcdhePublicKey ecdh_pubkey;
997 struct GNUNET_CRYPTO_SymmetricSessionKey skey;
998 struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
999 struct GNUNET_HashCode new_key_hash;
1002 size = GNUNET_CRYPTO_cpabe_serialize_key (rp_key,
1003 (void**)&serialized_key);
1004 buf = GNUNET_malloc (strlen (handle->scopes) + 1 + size);
1007 strlen (handle->scopes) + 1);
1008 GNUNET_memcpy (buf + strlen (handle->scopes) + 1,
1011 // ECDH keypair E = eG
1012 *ecdh_privkey = GNUNET_CRYPTO_ecdhe_key_create();
1013 GNUNET_CRYPTO_ecdhe_key_get_public (*ecdh_privkey,
1015 enc_keyinfo = GNUNET_malloc (size + strlen (handle->scopes) + 1);
1016 // Derived key K = H(eB)
1017 GNUNET_assert (GNUNET_OK == GNUNET_CRYPTO_ecdh_ecdsa (*ecdh_privkey,
1020 create_sym_key_from_ecdh(&new_key_hash, &skey, &iv);
1021 enc_size = GNUNET_CRYPTO_symmetric_encrypt (buf,
1022 size + strlen (handle->scopes) + 1,
1025 *result = GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_EcdhePublicKey)+
1027 GNUNET_memcpy (*result,
1029 sizeof (struct GNUNET_CRYPTO_EcdhePublicKey));
1030 GNUNET_memcpy (*result + sizeof (struct GNUNET_CRYPTO_EcdhePublicKey),
1033 GNUNET_free (enc_keyinfo);
1034 return sizeof (struct GNUNET_CRYPTO_EcdhePublicKey)+enc_size;
1038 cleanup_exchange_handle (struct ExchangeHandle *handle)
1040 if (NULL != handle->ticket)
1041 ticket_destroy (handle->ticket);
1042 if (NULL != handle->token)
1043 token_destroy (handle->token);
1044 GNUNET_free (handle);
1049 * Build a token and store it
1051 * @param cls the IssueHandle
1054 sign_and_return_token (void *cls)
1056 struct ExchangeHandle *handle = cls;
1057 struct GNUNET_MQ_Envelope *env;
1062 time = GNUNET_TIME_absolute_get().abs_value_us;
1063 exp_time = time + token_expiration_interval.rel_value_us;
1065 token_add_attr_int (handle->token, "nbf", time);
1066 token_add_attr_int (handle->token, "iat", time);
1067 token_add_attr_int (handle->token, "exp", exp_time);
1070 GNUNET_assert (GNUNET_OK == token_to_string (handle->token,
1071 &handle->aud_privkey,
1074 env = create_exchange_result_message (token_str,
1076 handle->ticket->payload->nonce,
1078 GNUNET_MQ_send (handle->client->mq,
1080 cleanup_exchange_handle (handle);
1081 GNUNET_free (token_str);
1086 * Build an ABE key and store it
1088 * @param cls the IssueHandle
1091 issue_ticket (void *cls)
1093 struct GNUNET_CRYPTO_EcdsaPublicKey pub_key;
1094 struct GNUNET_CRYPTO_EcdhePrivateKey *ecdhe_privkey;
1095 struct IssueHandle *handle = cls;
1096 struct GNUNET_GNSRECORD_Data code_record[1];
1097 struct GNUNET_CRYPTO_AbeKey *rp_key;
1099 char *code_record_data;
1107 size_t code_record_len;
1111 GNUNET_asprintf (&nonce_str, "%lu", handle->nonce);
1112 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Request nonce: %s\n", nonce_str);
1114 GNUNET_CRYPTO_ecdsa_key_get_public (&handle->iss_key,
1116 handle->ticket = ticket_create (handle->nonce,
1121 time = GNUNET_TIME_absolute_get().abs_value_us;
1122 exp_time = time + token_expiration_interval.rel_value_us;
1124 token_add_attr_int (handle->token, "nbf", time);
1125 token_add_attr_int (handle->token, "iat", time);
1126 token_add_attr_int (handle->token, "exp", exp_time);
1127 token_add_attr (handle->token, "nonce", nonce_str);
1129 //Create new ABE key for RP
1130 attrs_len = (GNUNET_CONTAINER_multihashmap_size (handle->attr_map) + 1) * sizeof (char*);
1131 attrs = GNUNET_malloc (attrs_len);
1133 scopes_tmp = GNUNET_strdup (handle->scopes);
1134 for (scope = strtok (scopes_tmp, ","); NULL != scope; scope = strtok (NULL, ",")) {
1138 rp_key = GNUNET_CRYPTO_cpabe_create_key (handle->abe_key,
1140 code_record_len = serialize_abe_keyinfo (handle,
1144 code_record[0].data = code_record_data;
1145 code_record[0].data_size = code_record_len;
1146 code_record[0].expiration_time = exp_time;
1147 code_record[0].record_type = GNUNET_GNSRECORD_TYPE_ABE_KEY;
1148 code_record[0].flags = GNUNET_GNSRECORD_RF_NONE;
1152 handle->ns_qe = GNUNET_NAMESTORE_records_store (ns_handle,
1157 &store_record_issue_cont,
1159 GNUNET_free (ecdhe_privkey);
1160 GNUNET_free (nonce_str);
1161 GNUNET_free (code_record_data);
1165 * Credential to JSON
1166 * @param cred the credential
1167 * @return the resulting json, NULL if failed
1170 credential_to_json (struct GNUNET_CREDENTIAL_Credential *cred)
1175 char attribute[cred->issuer_attribute_len + 1];
1178 issuer = GNUNET_CRYPTO_ecdsa_public_key_to_string (&cred->issuer_key);
1181 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1182 "Issuer in credential malformed\n");
1185 subject = GNUNET_CRYPTO_ecdsa_public_key_to_string (&cred->subject_key);
1186 if (NULL == subject)
1188 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1189 "Subject in credential malformed\n");
1190 GNUNET_free (issuer);
1193 GNUNET_STRINGS_base64_encode ((char*)&cred->signature,
1194 sizeof (struct GNUNET_CRYPTO_EcdsaSignature),
1197 cred->issuer_attribute,
1198 cred->issuer_attribute_len);
1199 attribute[cred->issuer_attribute_len] = '\0';
1200 cred_obj = json_object ();
1201 json_object_set_new (cred_obj, "issuer", json_string (issuer));
1202 json_object_set_new (cred_obj, "subject", json_string (subject));
1203 json_object_set_new (cred_obj, "attribute", json_string (attribute));
1204 json_object_set_new (cred_obj, "signature", json_string (signature));
1205 json_object_set_new (cred_obj, "expiration", json_integer (cred->expiration.abs_value_us));
1206 GNUNET_free (issuer);
1207 GNUNET_free (subject);
1208 GNUNET_free (signature);
1214 handle_vattr_collection (void* cls,
1215 unsigned int d_count,
1216 struct GNUNET_CREDENTIAL_Delegation *dc,
1217 unsigned int c_count,
1218 struct GNUNET_CREDENTIAL_Credential *cred)
1220 struct IssueHandle *handle = cls;
1221 struct VerifiedAttributeEntry *vattr;
1225 handle->credential_request = NULL;
1229 GNUNET_SCHEDULER_add_now (&issue_ticket, handle);
1232 cred_array = json_array();
1233 for (i=0;i<c_count;i++)
1235 cred_json = credential_to_json (cred);
1236 if (NULL == cred_json)
1238 json_array_append (cred_array, cred_json);
1239 token_add_attr_json (handle->token,
1240 handle->v_attr_head->name,
1243 json_decref (cred_array);
1244 vattr = handle->v_attr_head;
1246 GNUNET_CONTAINER_DLL_remove (handle->v_attr_head,
1247 handle->v_attr_tail,
1249 GNUNET_free (vattr->name);
1250 GNUNET_free (vattr);
1252 if (NULL == handle->v_attr_head)
1254 GNUNET_SCHEDULER_add_now (&issue_ticket, handle);
1257 handle->credential_request = GNUNET_CREDENTIAL_collect (credential_handle,
1259 handle->v_attr_head->name,
1261 &handle_vattr_collection,
1268 attr_collect_error (void *cls)
1270 struct IssueHandle *handle = cls;
1272 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Adding attribute Error!\n");
1273 handle->ns_it = NULL;
1274 GNUNET_SCHEDULER_add_now (&issue_ticket, handle);
1279 attr_collect_finished (void *cls)
1281 struct IssueHandle *handle = cls;
1283 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding attribute END: \n");
1284 handle->ns_it = NULL;
1286 if (NULL == handle->v_attr_head)
1288 GNUNET_SCHEDULER_add_now (&issue_ticket, handle);
1291 handle->credential_request = GNUNET_CREDENTIAL_collect (credential_handle,
1293 handle->v_attr_head->name,
1295 &handle_vattr_collection,
1300 * Collect attributes for token
1303 attr_collect (void *cls,
1304 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
1306 unsigned int rd_count,
1307 const struct GNUNET_GNSRECORD_Data *rd)
1309 struct IssueHandle *handle = cls;
1312 struct GNUNET_HashCode key;
1314 GNUNET_CRYPTO_hash (label,
1318 if (0 == rd_count ||
1319 ( (NULL != handle->attr_map) &&
1320 (GNUNET_YES != GNUNET_CONTAINER_multihashmap_contains (handle->attr_map,
1325 GNUNET_NAMESTORE_zone_iterator_next (handle->ns_it);
1329 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding attribute: %s\n", label);
1333 if (rd->record_type == GNUNET_GNSRECORD_TYPE_ID_ATTR)
1335 data = GNUNET_GNSRECORD_value_to_string (rd->record_type,
1338 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding value: %s\n", data);
1339 token_add_attr (handle->token,
1344 GNUNET_NAMESTORE_zone_iterator_next (handle->ns_it);
1349 for (; i < rd_count; i++)
1351 if (rd->record_type == GNUNET_GNSRECORD_TYPE_ID_ATTR)
1353 data = GNUNET_GNSRECORD_value_to_string (rd[i].record_type,
1356 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding value: %s\n", data);
1357 token_add_attr (handle->token, label, data);
1362 GNUNET_NAMESTORE_zone_iterator_next (handle->ns_it);
1366 process_parallel_lookup (void *cls, uint32_t rd_count,
1367 const struct GNUNET_GNSRECORD_Data *rd)
1369 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
1370 "Parallel lookup finished (count=%u)\n", rd_count);
1371 struct ParallelLookup *parallel_lookup = cls;
1372 struct ExchangeHandle *handle = parallel_lookup->handle;
1376 GNUNET_CONTAINER_DLL_remove (handle->parallel_lookups_head,
1377 handle->parallel_lookups_tail,
1379 GNUNET_free (parallel_lookup);
1382 if (rd->record_type == GNUNET_GNSRECORD_TYPE_ID_ATTR)
1384 GNUNET_CRYPTO_cpabe_decrypt (rd->data,
1388 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE, "Adding value: %s\n", data);
1389 token_add_attr (handle->token,
1390 parallel_lookup->label,
1396 for (; i < rd_count; i++)
1398 if (rd[i].record_type == GNUNET_GNSRECORD_TYPE_ID_ATTR)
1400 data = GNUNET_GNSRECORD_value_to_string (rd[i].record_type,
1403 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE, "Adding value: %s\n", data);
1404 token_add_attr (handle->token, parallel_lookup->label, data);
1409 if (NULL != handle->parallel_lookups_head)
1410 return; //Wait for more
1412 GNUNET_SCHEDULER_cancel (handle->kill_task);
1413 GNUNET_SCHEDULER_add_now (&sign_and_return_token, handle);
1417 abort_parallel_lookups (void *cls)
1419 struct ExchangeHandle *handle = cls;
1420 struct ParallelLookup *lu;
1421 struct ParallelLookup *tmp;
1423 for (lu = handle->parallel_lookups_head;
1425 GNUNET_GNS_lookup_cancel (lu->lookup_request);
1426 GNUNET_free (lu->label);
1428 GNUNET_CONTAINER_DLL_remove (handle->parallel_lookups_head,
1429 handle->parallel_lookups_tail,
1434 GNUNET_SCHEDULER_add_now (&sign_and_return_token, handle);
1439 process_lookup_result (void *cls, uint32_t rd_count,
1440 const struct GNUNET_GNSRECORD_Data *rd)
1442 struct ExchangeHandle *handle = cls;
1443 struct GNUNET_HashCode new_key_hash;
1444 struct GNUNET_CRYPTO_SymmetricSessionKey enc_key;
1445 struct GNUNET_CRYPTO_SymmetricInitializationVector enc_iv;
1446 struct GNUNET_CRYPTO_EcdhePublicKey *ecdh_key;
1447 struct ParallelLookup *parallel_lookup;
1453 handle->lookup_request = NULL;
1456 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1457 "Number of keys %d != 1.",
1459 cleanup_exchange_handle (handle);
1460 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1465 ecdh_key = (struct GNUNET_CRYPTO_EcdhePublicKey *)rd->data;
1467 buf = GNUNET_malloc (rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey));
1469 //Calculate symmetric key from ecdh parameters
1470 GNUNET_assert (GNUNET_OK ==
1471 GNUNET_CRYPTO_ecdsa_ecdh (&handle->aud_privkey,
1474 create_sym_key_from_ecdh (&new_key_hash,
1477 size = GNUNET_CRYPTO_symmetric_decrypt (rd->data + sizeof (struct GNUNET_CRYPTO_EcdhePublicKey),
1478 rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey),
1483 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1484 "Decrypted bytes: %zd Expected bytes: %zd\n",
1485 size, rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey));
1487 scopes = GNUNET_strdup (buf);
1488 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
1489 "Scopes %s\n", scopes);
1490 handle->key = GNUNET_CRYPTO_cpabe_deserialize_key ((void*)(buf + strlen (scopes) + 1),
1491 rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey)
1492 - strlen (scopes) - 1);
1494 for (scope = strtok (scopes, ","); NULL != scope; scope = strtok (NULL, ","))
1496 GNUNET_asprintf (&lookup_query,
1499 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
1500 "Looking up %s\n", lookup_query);
1501 parallel_lookup = GNUNET_new (struct ParallelLookup);
1502 parallel_lookup->handle = handle;
1503 parallel_lookup->label = GNUNET_strdup (scope);
1504 parallel_lookup->lookup_request
1505 = GNUNET_GNS_lookup (gns_handle,
1507 &handle->ticket->payload->identity_key,
1508 GNUNET_GNSRECORD_TYPE_ID_ATTR,
1509 GNUNET_GNS_LO_LOCAL_MASTER,
1510 &process_parallel_lookup,
1512 GNUNET_CONTAINER_DLL_insert (handle->parallel_lookups_head,
1513 handle->parallel_lookups_tail,
1516 handle->kill_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES,3),
1517 &abort_parallel_lookups,
1522 * Checks a exchange message
1524 * @param cls client sending the message
1525 * @param xm message of type `struct ExchangeMessage`
1526 * @return #GNUNET_OK if @a xm is well-formed
1529 check_exchange_message (void *cls,
1530 const struct ExchangeMessage *xm)
1534 size = ntohs (xm->header.size);
1535 if (size <= sizeof (struct ExchangeMessage))
1538 return GNUNET_SYSERR;
1545 * Handler for exchange message
1548 * @param client who sent the message
1549 * @param message the message
1552 handle_exchange_message (void *cls,
1553 const struct ExchangeMessage *xm)
1555 struct ExchangeHandle *xchange_handle;
1556 struct IdpClient *idp = cls;
1560 ticket = (const char *) &xm[1];
1561 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1562 "Received EXCHANGE of `%s' from client\n",
1564 xchange_handle = GNUNET_malloc (sizeof (struct ExchangeHandle));
1565 xchange_handle->aud_privkey = xm->aud_privkey;
1566 xchange_handle->r_id = xm->id;
1567 if (GNUNET_SYSERR == ticket_parse (ticket,
1568 &xchange_handle->aud_privkey,
1569 &xchange_handle->ticket))
1571 GNUNET_free (xchange_handle);
1572 GNUNET_SERVICE_client_drop (idp->client);
1575 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking for ABE key under %s\n",
1576 xchange_handle->ticket->payload->label);
1577 GNUNET_asprintf (&lookup_query,
1579 xchange_handle->ticket->payload->label);
1580 GNUNET_SERVICE_client_continue (idp->client);
1581 xchange_handle->client = idp;
1582 xchange_handle->token = token_create (&xchange_handle->ticket->payload->identity_key,
1583 &xchange_handle->ticket->payload->identity_key);
1584 xchange_handle->lookup_request
1585 = GNUNET_GNS_lookup (gns_handle,
1587 &xchange_handle->ticket->payload->identity_key,
1588 GNUNET_GNSRECORD_TYPE_ABE_KEY,
1589 GNUNET_GNS_LO_LOCAL_MASTER,
1590 &process_lookup_result,
1592 GNUNET_free (lookup_query);
1597 attr_collect_task (void *cls)
1599 struct IssueHandle *issue_handle = cls;
1601 issue_handle->ns_it = GNUNET_NAMESTORE_zone_iteration_start (ns_handle,
1602 &issue_handle->iss_key,
1603 &attr_collect_error,
1607 &attr_collect_finished,
1612 abe_key_lookup_error (void *cls)
1614 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1615 "Error looking for ABE master!\n");
1616 GNUNET_SCHEDULER_add_now (&do_shutdown, cls);
1620 abe_key_lookup_result (void *cls,
1621 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
1623 unsigned int rd_count,
1624 const struct GNUNET_GNSRECORD_Data *rd)
1626 struct IssueHandle *handle = cls;
1629 for (i=0;i<rd_count;i++) {
1630 if (GNUNET_GNSRECORD_TYPE_ABE_MASTER != rd[i].record_type)
1632 handle->abe_key = GNUNET_CRYPTO_cpabe_deserialize_master_key ((void**)rd[i].data,
1634 GNUNET_SCHEDULER_add_now (&attr_collect_task, handle);
1637 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1638 "No ABE master found!\n");
1639 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1645 * Checks an issue message
1647 * @param cls client sending the message
1648 * @param im message of type `struct IssueMessage`
1649 * @return #GNUNET_OK if @a im is well-formed
1652 check_issue_message(void *cls,
1653 const struct IssueMessage *im)
1657 size = ntohs (im->header.size);
1658 if (size <= sizeof (struct IssueMessage))
1661 return GNUNET_SYSERR;
1663 scopes = (char *) &im[1];
1664 if ('\0' != scopes[size - sizeof (struct IssueMessage) - 1])
1666 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1667 "Malformed scopes received!\n");
1669 return GNUNET_SYSERR;
1677 * Handler for issue message
1680 * @param client who sent the message
1681 * @param message the message
1684 handle_issue_message (void *cls,
1685 const struct IssueMessage *im)
1691 struct GNUNET_HashCode key;
1692 struct IssueHandle *issue_handle;
1693 struct IdpClient *idp = cls;
1695 scopes = (const char *) &im[1];
1696 //v_attrs = (const char *) &im[1] + ntohl(im->scope_len);
1697 issue_handle = GNUNET_malloc (sizeof (struct IssueHandle));
1698 issue_handle->attr_map = GNUNET_CONTAINER_multihashmap_create (5,
1700 scopes_tmp = GNUNET_strdup (scopes);
1702 for (scope = strtok (scopes_tmp, ","); NULL != scope; scope = strtok (NULL, ","))
1704 GNUNET_CRYPTO_hash (scope,
1707 GNUNET_CONTAINER_multihashmap_put (issue_handle->attr_map,
1710 GNUNET_CONTAINER_MULTIHASHMAPOPTION_REPLACE);
1712 GNUNET_free (scopes_tmp);
1713 /*scopes_tmp = GNUNET_strdup (v_attrs);
1715 for (scope = strtok (scopes_tmp, ","); NULL != scope; scope = strtok (NULL, ","))
1717 vattr_entry = GNUNET_new (struct VerifiedAttributeEntry);
1718 vattr_entry->name = GNUNET_strdup (scope);
1719 GNUNET_CONTAINER_DLL_insert (issue_handle->v_attr_head,
1720 issue_handle->v_attr_tail,
1723 GNUNET_free (scopes_tmp);*/
1727 issue_handle->r_id = im->id;
1728 issue_handle->aud_key = im->aud_key;
1729 issue_handle->iss_key = im->iss_key;
1730 GNUNET_CRYPTO_ecdsa_key_get_public (&im->iss_key,
1731 &issue_handle->iss_pkey);
1732 issue_handle->expiration = GNUNET_TIME_absolute_ntoh (im->expiration);
1733 issue_handle->nonce = ntohl (im->nonce);
1734 GNUNET_SERVICE_client_continue (idp->client);
1735 issue_handle->client = idp;
1736 issue_handle->scopes = GNUNET_strdup (scopes);
1737 issue_handle->token = token_create (&issue_handle->iss_pkey,
1738 &issue_handle->aud_key);
1740 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_STRONG,
1742 GNUNET_STRINGS_base64_encode ((char*)&rnd_key,
1744 &issue_handle->label);
1745 issue_handle->ns_qe = GNUNET_NAMESTORE_records_lookup (ns_handle,
1746 &issue_handle->iss_key,
1748 &abe_key_lookup_error,
1750 &abe_key_lookup_result,
1755 cleanup_ticket_issue_handle (struct TicketIssueHandle *handle)
1757 if (NULL != handle->attrs)
1758 attribute_list_destroy (handle->attrs);
1759 if (NULL != handle->ns_qe)
1760 GNUNET_NAMESTORE_cancel (handle->ns_qe);
1761 GNUNET_free (handle);
1766 send_ticket_result (struct IdpClient *client,
1768 const struct GNUNET_IDENTITY_PROVIDER_Ticket2 *ticket,
1769 const struct GNUNET_IDENTITY_PROVIDER_AttributeList *attrs)
1771 struct TicketResultMessage *irm;
1772 struct GNUNET_MQ_Envelope *env;
1774 struct GNUNET_IDENTITY_PROVIDER_Ticket2 *ticket_buf;
1777 attrs_size = attribute_list_serialize_get_size (attrs);
1779 env = GNUNET_MQ_msg_extra (irm,
1780 sizeof (struct GNUNET_IDENTITY_PROVIDER_Ticket2) + attrs_size,
1781 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_RESULT);
1782 ticket_buf = (struct GNUNET_IDENTITY_PROVIDER_Ticket2 *)&irm[1];
1783 *ticket_buf = *ticket;
1784 attrs_buf = (char*)&ticket_buf[1];
1785 attribute_list_serialize (attrs,
1787 irm->id = htonl (r_id);
1789 GNUNET_MQ_send (client->mq,
1794 store_ticket_issue_cont (void *cls,
1798 struct TicketIssueHandle *handle = cls;
1800 handle->ns_qe = NULL;
1801 if (GNUNET_SYSERR == success)
1803 cleanup_ticket_issue_handle (handle);
1804 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s\n",
1806 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
1809 send_ticket_result (handle->client,
1813 cleanup_ticket_issue_handle (handle);
1819 serialize_abe_keyinfo2 (const struct TicketIssueHandle *handle,
1820 const struct GNUNET_CRYPTO_AbeKey *rp_key,
1821 struct GNUNET_CRYPTO_EcdhePrivateKey **ecdh_privkey,
1824 struct GNUNET_CRYPTO_EcdhePublicKey ecdh_pubkey;
1825 struct GNUNET_IDENTITY_PROVIDER_AttributeListEntry *le;
1827 char *serialized_key;
1833 struct GNUNET_CRYPTO_SymmetricSessionKey skey;
1834 struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
1835 struct GNUNET_HashCode new_key_hash;
1838 size = GNUNET_CRYPTO_cpabe_serialize_key (rp_key,
1839 (void**)&serialized_key);
1841 for (le = handle->attrs->list_head; NULL != le; le = le->next) {
1842 attrs_str_len += strlen (le->attribute->name) + 1;
1844 buf = GNUNET_malloc (attrs_str_len + size);
1846 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
1847 "Writing attributes\n");
1848 for (le = handle->attrs->list_head; NULL != le; le = le->next) {
1849 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
1850 "%s\n", le->attribute->name);
1853 GNUNET_memcpy (write_ptr,
1854 le->attribute->name,
1855 strlen (le->attribute->name));
1856 write_ptr[strlen (le->attribute->name)] = ',';
1857 write_ptr += strlen (le->attribute->name) + 1;
1860 write_ptr[0] = '\0'; //replace last , with a 0-terminator
1862 GNUNET_memcpy (write_ptr,
1865 // ECDH keypair E = eG
1866 *ecdh_privkey = GNUNET_CRYPTO_ecdhe_key_create();
1867 GNUNET_CRYPTO_ecdhe_key_get_public (*ecdh_privkey,
1869 enc_keyinfo = GNUNET_malloc (size + attrs_str_len);
1870 // Derived key K = H(eB)
1871 GNUNET_assert (GNUNET_OK == GNUNET_CRYPTO_ecdh_ecdsa (*ecdh_privkey,
1872 &handle->ticket.audience,
1874 create_sym_key_from_ecdh(&new_key_hash, &skey, &iv);
1875 enc_size = GNUNET_CRYPTO_symmetric_encrypt (buf,
1876 size + attrs_str_len,
1879 *result = GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_EcdhePublicKey)+
1881 GNUNET_memcpy (*result,
1883 sizeof (struct GNUNET_CRYPTO_EcdhePublicKey));
1884 GNUNET_memcpy (*result + sizeof (struct GNUNET_CRYPTO_EcdhePublicKey),
1887 GNUNET_free (enc_keyinfo);
1888 return sizeof (struct GNUNET_CRYPTO_EcdhePublicKey)+enc_size;
1894 issue_ticket_after_abe_bootstrap (void *cls,
1895 struct GNUNET_CRYPTO_AbeMasterKey *abe_key)
1897 struct TicketIssueHandle *ih = cls;
1898 struct GNUNET_IDENTITY_PROVIDER_AttributeListEntry *le;
1899 struct GNUNET_CRYPTO_EcdhePrivateKey *ecdhe_privkey;
1900 struct GNUNET_GNSRECORD_Data code_record[1];
1901 struct GNUNET_CRYPTO_AbeKey *rp_key;
1902 char *code_record_data;
1907 size_t code_record_len;
1909 //Create new ABE key for RP
1911 for (le = ih->attrs->list_head; NULL != le; le = le->next)
1913 attrs = GNUNET_malloc ((attrs_len + 1)*sizeof (char*));
1915 for (le = ih->attrs->list_head; NULL != le; le = le->next) {
1916 attrs[i] = (char*) le->attribute->name;
1920 rp_key = GNUNET_CRYPTO_cpabe_create_key (abe_key,
1923 //TODO review this wireformat
1924 code_record_len = serialize_abe_keyinfo2 (ih,
1928 code_record[0].data = code_record_data;
1929 code_record[0].data_size = code_record_len;
1930 code_record[0].expiration_time = GNUNET_TIME_UNIT_DAYS.rel_value_us;
1931 code_record[0].record_type = GNUNET_GNSRECORD_TYPE_ABE_KEY;
1932 code_record[0].flags = GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION;
1934 label = GNUNET_STRINGS_data_to_string_alloc (&ih->ticket.rnd,
1937 ih->ns_qe = GNUNET_NAMESTORE_records_store (ns_handle,
1942 &store_ticket_issue_cont,
1944 GNUNET_free (ecdhe_privkey);
1945 GNUNET_free (label);
1946 GNUNET_free (code_record_data);
1951 * Checks a ticket issue message
1953 * @param cls client sending the message
1954 * @param im message of type `struct TicketIssueMessage`
1955 * @return #GNUNET_OK if @a im is well-formed
1958 check_ticket_issue_message(void *cls,
1959 const struct TicketIssueMessage *im)
1963 size = ntohs (im->header.size);
1964 if (size <= sizeof (struct TicketIssueMessage))
1967 return GNUNET_SYSERR;
1975 * Handler for ticket issue message
1978 * @param client who sent the message
1979 * @param message the message
1982 handle_ticket_issue_message (void *cls,
1983 const struct TicketIssueMessage *im)
1985 struct TicketIssueHandle *ih;
1986 struct IdpClient *idp = cls;
1989 ih = GNUNET_new (struct TicketIssueHandle);
1990 attrs_len = ntohs (im->attr_len);
1991 ih->attrs = attribute_list_deserialize ((char*)&im[1], attrs_len);
1992 ih->r_id = ntohl (im->id);
1994 ih->identity = im->identity;
1995 GNUNET_CRYPTO_ecdsa_key_get_public (&ih->identity,
1996 &ih->ticket.identity);
1997 ih->ticket.audience = im->rp;
1999 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_STRONG,
2001 bootstrap_abe (&ih->identity, &issue_ticket_after_abe_bootstrap, ih);
2002 GNUNET_SERVICE_client_continue (idp->client);
2009 cleanup_as_handle (struct AttributeStoreHandle *handle)
2011 if (NULL != handle->attribute)
2012 GNUNET_free (handle->attribute);
2013 if (NULL != handle->abe_key)
2014 GNUNET_free (handle->abe_key);
2015 GNUNET_free (handle);
2019 * Checks a ticket consume message
2021 * @param cls client sending the message
2022 * @param im message of type `struct ConsumeTicketMessage`
2023 * @return #GNUNET_OK if @a im is well-formed
2026 check_consume_ticket_message(void *cls,
2027 const struct ConsumeTicketMessage *cm)
2031 size = ntohs (cm->header.size);
2032 if (size <= sizeof (struct ConsumeTicketMessage))
2035 return GNUNET_SYSERR;
2041 process_parallel_lookup2 (void *cls, uint32_t rd_count,
2042 const struct GNUNET_GNSRECORD_Data *rd)
2044 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
2045 "Parallel lookup finished (count=%u)\n", rd_count);
2046 struct ParallelLookup2 *parallel_lookup = cls;
2047 struct ConsumeTicketHandle *handle = parallel_lookup->handle;
2048 struct ConsumeTicketResultMessage *crm;
2049 struct GNUNET_MQ_Envelope *env;
2050 struct GNUNET_IDENTITY_PROVIDER_AttributeListEntry *attr_le;
2056 GNUNET_CONTAINER_DLL_remove (handle->parallel_lookups_head,
2057 handle->parallel_lookups_tail,
2059 GNUNET_free (parallel_lookup);
2061 GNUNET_break(0);//TODO
2062 if (rd->record_type == GNUNET_GNSRECORD_TYPE_ID_ATTR)
2064 attr_len = GNUNET_CRYPTO_cpabe_decrypt (rd->data,
2068 attr_le = GNUNET_new (struct GNUNET_IDENTITY_PROVIDER_AttributeListEntry);
2069 attr_le->attribute = attribute_deserialize (data,
2071 GNUNET_CONTAINER_DLL_insert (handle->attrs->list_head,
2072 handle->attrs->list_tail,
2076 if (NULL != handle->parallel_lookups_head)
2077 return; //Wait for more
2079 GNUNET_SCHEDULER_cancel (handle->kill_task);
2080 attrs_len = attribute_list_serialize_get_size (handle->attrs);
2081 env = GNUNET_MQ_msg_extra (crm,
2083 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_CONSUME_TICKET_RESULT);
2084 crm->id = htonl (handle->r_id);
2085 crm->attrs_len = htons (attrs_len);
2086 crm->identity = handle->ticket.identity;
2087 data_tmp = (char *) &crm[1];
2088 attribute_list_serialize (handle->attrs,
2090 GNUNET_MQ_send (handle->client->mq, env);
2094 abort_parallel_lookups2 (void *cls)
2096 struct ConsumeTicketHandle *handle = cls;
2097 struct ParallelLookup2 *lu;
2098 struct ParallelLookup2 *tmp;
2099 struct AttributeResultMessage *arm;
2100 struct GNUNET_MQ_Envelope *env;
2102 for (lu = handle->parallel_lookups_head;
2104 GNUNET_GNS_lookup_cancel (lu->lookup_request);
2105 GNUNET_free (lu->label);
2107 GNUNET_CONTAINER_DLL_remove (handle->parallel_lookups_head,
2108 handle->parallel_lookups_tail,
2113 env = GNUNET_MQ_msg (arm,
2114 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_RESULT);
2115 arm->id = htonl (handle->r_id);
2116 arm->attr_len = htons (0);
2117 GNUNET_MQ_send (handle->client->mq, env);
2122 cleanup_consume_ticket_handle (struct ConsumeTicketHandle *handle)
2124 if (NULL != handle->key)
2125 GNUNET_free (handle->key);
2126 GNUNET_free (handle);
2131 process_consume_abe_key (void *cls, uint32_t rd_count,
2132 const struct GNUNET_GNSRECORD_Data *rd)
2134 struct ConsumeTicketHandle *handle = cls;
2135 struct GNUNET_HashCode new_key_hash;
2136 struct GNUNET_CRYPTO_SymmetricSessionKey enc_key;
2137 struct GNUNET_CRYPTO_SymmetricInitializationVector enc_iv;
2138 struct GNUNET_CRYPTO_EcdhePublicKey *ecdh_key;
2139 struct ParallelLookup2 *parallel_lookup;
2145 handle->lookup_request = NULL;
2148 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2149 "Number of keys %d != 1.",
2151 cleanup_consume_ticket_handle (handle);
2152 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
2157 ecdh_key = (struct GNUNET_CRYPTO_EcdhePublicKey *)rd->data;
2159 buf = GNUNET_malloc (rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey));
2161 //Calculate symmetric key from ecdh parameters
2162 GNUNET_assert (GNUNET_OK ==
2163 GNUNET_CRYPTO_ecdsa_ecdh (&handle->identity,
2166 create_sym_key_from_ecdh (&new_key_hash,
2169 size = GNUNET_CRYPTO_symmetric_decrypt (rd->data + sizeof (struct GNUNET_CRYPTO_EcdhePublicKey),
2170 rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey),
2175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2176 "Decrypted bytes: %zd Expected bytes: %zd\n",
2177 size, rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey));
2179 scopes = GNUNET_strdup (buf);
2180 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
2181 "Scopes %s\n", scopes);
2182 handle->key = GNUNET_CRYPTO_cpabe_deserialize_key ((void*)(buf + strlen (scopes) + 1),
2183 rd->data_size - sizeof (struct GNUNET_CRYPTO_EcdhePublicKey)
2184 - strlen (scopes) - 1);
2186 for (scope = strtok (scopes, ","); NULL != scope; scope = strtok (NULL, ","))
2188 GNUNET_asprintf (&lookup_query,
2191 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
2192 "Looking up %s\n", lookup_query);
2193 parallel_lookup = GNUNET_new (struct ParallelLookup2);
2194 parallel_lookup->handle = handle;
2195 parallel_lookup->label = GNUNET_strdup (scope);
2196 parallel_lookup->lookup_request
2197 = GNUNET_GNS_lookup (gns_handle,
2199 &handle->ticket.identity,
2200 GNUNET_GNSRECORD_TYPE_ID_ATTR,
2201 GNUNET_GNS_LO_LOCAL_MASTER,
2202 &process_parallel_lookup2,
2204 GNUNET_CONTAINER_DLL_insert (handle->parallel_lookups_head,
2205 handle->parallel_lookups_tail,
2208 handle->kill_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES,3),
2209 &abort_parallel_lookups2,
2216 * Handler for ticket issue message
2219 * @param client who sent the message
2220 * @param message the message
2223 handle_consume_ticket_message (void *cls,
2224 const struct ConsumeTicketMessage *cm)
2226 struct ConsumeTicketHandle *ch;
2227 struct IdpClient *idp = cls;
2231 ch = GNUNET_new (struct ConsumeTicketHandle);
2232 ch->r_id = ntohl (cm->id);
2234 ch->identity = cm->identity;
2235 ch->attrs = GNUNET_new (struct GNUNET_IDENTITY_PROVIDER_AttributeList);
2236 GNUNET_CRYPTO_ecdsa_key_get_public (&ch->identity,
2238 ch->ticket = *((struct GNUNET_IDENTITY_PROVIDER_Ticket2*)&cm[1]);
2239 rnd_label = GNUNET_STRINGS_data_to_string_alloc (&ch->ticket.rnd,
2241 GNUNET_asprintf (&lookup_query,
2244 GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
2245 "Looking for ABE key under %s\n", lookup_query);
2248 = GNUNET_GNS_lookup (gns_handle,
2250 &ch->ticket.identity,
2251 GNUNET_GNSRECORD_TYPE_ABE_KEY,
2252 GNUNET_GNS_LO_LOCAL_MASTER,
2253 &process_consume_abe_key,
2255 GNUNET_free (lookup_query);
2256 GNUNET_SERVICE_client_continue (idp->client);
2260 attr_store_cont (void *cls,
2264 struct AttributeStoreHandle *as_handle = cls;
2265 struct GNUNET_MQ_Envelope *env;
2266 struct AttributeStoreResponseMessage *acr_msg;
2268 if (GNUNET_SYSERR == success)
2270 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2271 "Failed to store attribute %s\n",
2273 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
2277 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2278 "Sending ATTRIBUTE_STORE_RESPONSE message\n");
2279 env = GNUNET_MQ_msg (acr_msg,
2280 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_STORE_RESPONSE);
2281 acr_msg->id = htonl (as_handle->r_id);
2282 acr_msg->op_result = htonl (GNUNET_OK);
2283 GNUNET_MQ_send (as_handle->client->mq,
2285 cleanup_as_handle (as_handle);
2289 attr_store_task (void *cls)
2291 struct AttributeStoreHandle *as_handle = cls;
2292 struct GNUNET_GNSRECORD_Data rd[1];
2296 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2297 "Storing attribute\n");
2298 buf_size = attribute_serialize_get_size (as_handle->attribute);
2299 buf = GNUNET_malloc (buf_size);
2301 attribute_serialize (as_handle->attribute,
2305 * Encrypt the attribute value and store in namestore
2307 rd[0].data_size = GNUNET_CRYPTO_cpabe_encrypt (buf,
2309 as_handle->attribute->name, //Policy
2311 (void**)&rd[0].data);
2313 rd[0].record_type = GNUNET_GNSRECORD_TYPE_ID_ATTR;
2314 rd[0].flags = GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION;
2315 rd[0].expiration_time = GNUNET_TIME_UNIT_HOURS.rel_value_us; //TODO sane?
2316 as_handle->ns_qe = GNUNET_NAMESTORE_records_store (ns_handle,
2317 &as_handle->identity,
2318 as_handle->attribute->name,
2323 GNUNET_free ((void*)rd[0].data);
2329 store_after_abe_bootstrap (void *cls,
2330 struct GNUNET_CRYPTO_AbeMasterKey *abe_key)
2332 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2333 "Finished ABE bootstrap\n");
2334 struct AttributeStoreHandle *ash = cls;
2335 ash->abe_key = abe_key;
2336 GNUNET_SCHEDULER_add_now (&attr_store_task, ash);
2340 * Checks a store message
2342 * @param cls client sending the message
2343 * @param sam message of type `struct AttributeStoreMessage`
2344 * @return #GNUNET_OK if @a im is well-formed
2347 check_attribute_store_message(void *cls,
2348 const struct AttributeStoreMessage *sam)
2352 size = ntohs (sam->header.size);
2353 if (size <= sizeof (struct AttributeStoreMessage))
2356 return GNUNET_SYSERR;
2364 * Handler for store message
2367 * @param client who sent the message
2368 * @param message the message
2371 handle_attribute_store_message (void *cls,
2372 const struct AttributeStoreMessage *sam)
2374 struct AttributeStoreHandle *as_handle;
2375 struct IdpClient *idp = cls;
2377 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2378 "Received ATTRIBUTE_STORE message\n");
2380 data_len = ntohs (sam->attr_len);
2382 as_handle = GNUNET_new (struct AttributeStoreHandle);
2383 as_handle->attribute = attribute_deserialize ((char*)&sam[1],
2386 as_handle->r_id = ntohl (sam->id);
2387 as_handle->identity = sam->identity;
2388 GNUNET_CRYPTO_ecdsa_key_get_public (&sam->identity,
2389 &as_handle->identity_pkey);
2391 GNUNET_SERVICE_client_continue (idp->client);
2392 as_handle->client = idp;
2393 bootstrap_abe (&as_handle->identity, &store_after_abe_bootstrap, as_handle);
2397 cleanup_iter_handle (struct AttributeIterator *ai)
2399 if (NULL != ai->abe_key)
2400 GNUNET_free (ai->abe_key);
2401 GNUNET_CONTAINER_DLL_remove (ai->client->op_head,
2402 ai->client->op_tail,
2408 attr_iter_error (void *cls)
2410 //struct AttributeIterator *ai = cls;
2412 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2413 "Failed to iterate over attributes\n");
2414 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
2418 attr_iter_finished (void *cls)
2420 struct AttributeIterator *ai = cls;
2421 struct GNUNET_MQ_Envelope *env;
2422 struct AttributeResultMessage *arm;
2424 env = GNUNET_MQ_msg (arm,
2425 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_RESULT);
2426 arm->id = htonl (ai->request_id);
2427 arm->attr_len = htons (0);
2428 GNUNET_MQ_send (ai->client->mq, env);
2429 cleanup_iter_handle (ai);
2433 attr_iter_cb (void *cls,
2434 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
2436 unsigned int rd_count,
2437 const struct GNUNET_GNSRECORD_Data *rd)
2439 struct AttributeIterator *ai = cls;
2440 struct AttributeResultMessage *arm;
2441 struct GNUNET_CRYPTO_AbeKey *key;
2442 struct GNUNET_MQ_Envelope *env;
2443 ssize_t msg_extra_len;
2450 GNUNET_NAMESTORE_zone_iterator_next (ai->ns_it);
2454 if (GNUNET_GNSRECORD_TYPE_ID_ATTR != rd->record_type) {
2455 GNUNET_NAMESTORE_zone_iterator_next (ai->ns_it);
2458 attrs[0] = (char*)label;
2460 key = GNUNET_CRYPTO_cpabe_create_key (ai->abe_key,
2462 msg_extra_len = GNUNET_CRYPTO_cpabe_decrypt (rd->data,
2466 GNUNET_CRYPTO_cpabe_delete_key (key);
2467 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2468 "Found attribute: %s\n", label);
2469 env = GNUNET_MQ_msg_extra (arm,
2471 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_RESULT);
2472 arm->id = htonl (ai->request_id);
2473 arm->attr_len = htons (msg_extra_len);
2474 GNUNET_CRYPTO_ecdsa_key_get_public (zone,
2476 data_tmp = (char *) &arm[1];
2477 GNUNET_memcpy (data_tmp,
2480 GNUNET_MQ_send (ai->client->mq, env);
2481 GNUNET_free (attr_ser);
2486 iterate_after_abe_bootstrap (void *cls,
2487 struct GNUNET_CRYPTO_AbeMasterKey *abe_key)
2489 struct AttributeIterator *ai = cls;
2490 ai->abe_key = abe_key;
2491 ai->ns_it = GNUNET_NAMESTORE_zone_iteration_start (ns_handle,
2497 &attr_iter_finished,
2503 * Handles a #GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ITERATION_START message
2505 * @param cls the client sending the message
2506 * @param zis_msg message from the client
2509 handle_iteration_start (void *cls,
2510 const struct AttributeIterationStartMessage *ais_msg)
2512 struct IdpClient *idp = cls;
2513 struct AttributeIterator *ai;
2515 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2516 "Received ATTRIBUTE_ITERATION_START message\n");
2517 ai = GNUNET_new (struct AttributeIterator);
2518 ai->request_id = ntohl (ais_msg->id);
2520 ai->identity = ais_msg->identity;
2522 GNUNET_CONTAINER_DLL_insert (idp->op_head,
2525 bootstrap_abe (&ai->identity, &iterate_after_abe_bootstrap, ai);
2526 GNUNET_SERVICE_client_continue (idp->client);
2531 * Handles a #GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ITERATION_STOP message
2533 * @param cls the client sending the message
2534 * @param ais_msg message from the client
2537 handle_iteration_stop (void *cls,
2538 const struct AttributeIterationStopMessage *ais_msg)
2540 struct IdpClient *idp = cls;
2541 struct AttributeIterator *ai;
2544 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2545 "Received `%s' message\n",
2546 "ATTRIBUTE_ITERATION_STOP");
2547 rid = ntohl (ais_msg->id);
2548 for (ai = idp->op_head; NULL != ai; ai = ai->next)
2549 if (ai->request_id == rid)
2554 GNUNET_SERVICE_client_drop (idp->client);
2557 GNUNET_CONTAINER_DLL_remove (idp->op_head,
2561 GNUNET_SERVICE_client_continue (idp->client);
2566 * Handles a #GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_ITERATION_NEXT message
2568 * @param cls the client sending the message
2569 * @param message message from the client
2572 handle_iteration_next (void *cls,
2573 const struct AttributeIterationNextMessage *ais_msg)
2575 struct IdpClient *idp = cls;
2576 struct AttributeIterator *ai;
2579 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2580 "Received ATTRIBUTE_ITERATION_NEXT message\n");
2581 rid = ntohl (ais_msg->id);
2582 for (ai = idp->op_head; NULL != ai; ai = ai->next)
2583 if (ai->request_id == rid)
2588 GNUNET_SERVICE_client_drop (idp->client);
2591 GNUNET_NAMESTORE_zone_iterator_next (ai->ns_it);
2592 GNUNET_SERVICE_client_continue (idp->client);
2596 * Ticket iteration processor result
2598 enum ZoneIterationResult
2607 * Continue to iterate with next iteration_next call
2609 IT_SUCCESS_MORE_AVAILABLE = 1,
2612 * Iteration complete
2614 IT_SUCCESS_NOT_MORE_RESULTS_AVAILABLE = 2
2619 * Context for ticket iteration
2621 struct TicketIterationProcResult
2624 * The ticket iteration handle
2626 struct TicketIteration *ti;
2629 * Iteration result: iteration done?
2630 * #IT_SUCCESS_MORE_AVAILABLE: if there may be more results overall but
2631 * we got one for now and have sent it to the client
2632 * #IT_SUCCESS_NOT_MORE_RESULTS_AVAILABLE: if there are no further results,
2633 * #IT_START: if we are still trying to find a result.
2635 int res_iteration_finished;
2642 * Process ticket from database
2644 * @param cls struct TicketIterationProcResult
2645 * @param ticket the ticket
2646 * @param attrs the attributes
2649 ticket_iterate_proc (void *cls,
2650 const struct GNUNET_IDENTITY_PROVIDER_Ticket2 *ticket,
2651 const struct GNUNET_IDENTITY_PROVIDER_AttributeList *attrs)
2653 struct TicketIterationProcResult *proc = cls;
2657 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2658 "Iteration done\n");
2659 proc->res_iteration_finished = IT_SUCCESS_NOT_MORE_RESULTS_AVAILABLE;
2662 if ((NULL == ticket) || (NULL == attrs))
2665 proc->res_iteration_finished = IT_START;
2669 proc->res_iteration_finished = IT_SUCCESS_MORE_AVAILABLE;
2670 send_ticket_result (proc->ti->client,
2678 * Perform ticket iteration step
2680 * @param ti ticket iterator to process
2683 run_ticket_iteration_round (struct TicketIteration *ti)
2685 struct TicketIterationProcResult proc;
2686 struct GNUNET_MQ_Envelope *env;
2687 struct TicketResultMessage *trm;
2690 memset (&proc, 0, sizeof (proc));
2692 proc.res_iteration_finished = IT_START;
2693 while (IT_START == proc.res_iteration_finished)
2695 if (GNUNET_SYSERR ==
2696 (ret = TKT_database->iterate_tickets (TKT_database->cls,
2700 &ticket_iterate_proc,
2706 if (GNUNET_NO == ret)
2707 proc.res_iteration_finished = IT_SUCCESS_NOT_MORE_RESULTS_AVAILABLE;
2710 if (IT_SUCCESS_MORE_AVAILABLE == proc.res_iteration_finished)
2712 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2713 "More results available\n");
2714 return; /* more later */
2716 /* send empty response to indicate end of list */
2717 env = GNUNET_MQ_msg (trm,
2718 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_RESULT);
2719 trm->id = htonl (ti->r_id);
2720 GNUNET_MQ_send (ti->client->mq,
2722 GNUNET_CONTAINER_DLL_remove (ti->client->ticket_iter_head,
2723 ti->client->ticket_iter_tail,
2729 * Handles a #GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_ITERATION_START message
2731 * @param cls the client sending the message
2732 * @param tis_msg message from the client
2735 handle_ticket_iteration_start (void *cls,
2736 const struct TicketIterationStartMessage *tis_msg)
2738 struct IdpClient *client = cls;
2739 struct TicketIteration *ti;
2741 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2742 "Received TICKET_ITERATION_START message\n");
2743 ti = GNUNET_new (struct TicketIteration);
2744 ti->r_id = ntohl (tis_msg->id);
2746 ti->client = client;
2747 ti->identity = tis_msg->identity;
2748 ti->is_audience = ntohl (tis_msg->is_audience);
2750 GNUNET_CONTAINER_DLL_insert (client->ticket_iter_head,
2751 client->ticket_iter_tail,
2753 run_ticket_iteration_round (ti);
2754 GNUNET_SERVICE_client_continue (client->client);
2759 * Handles a #GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_ITERATION_STOP message
2761 * @param cls the client sending the message
2762 * @param tis_msg message from the client
2765 handle_ticket_iteration_stop (void *cls,
2766 const struct TicketIterationStopMessage *tis_msg)
2768 struct IdpClient *client = cls;
2769 struct TicketIteration *ti;
2772 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2773 "Received `%s' message\n",
2774 "TICKET_ITERATION_STOP");
2775 rid = ntohl (tis_msg->id);
2776 for (ti = client->ticket_iter_head; NULL != ti; ti = ti->next)
2777 if (ti->r_id == rid)
2782 GNUNET_SERVICE_client_drop (client->client);
2785 GNUNET_CONTAINER_DLL_remove (client->ticket_iter_head,
2786 client->ticket_iter_tail,
2789 GNUNET_SERVICE_client_continue (client->client);
2794 * Handles a #GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_ITERATION_NEXT message
2796 * @param cls the client sending the message
2797 * @param message message from the client
2800 handle_ticket_iteration_next (void *cls,
2801 const struct TicketIterationNextMessage *tis_msg)
2803 struct IdpClient *client = cls;
2804 struct TicketIteration *ti;
2807 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2808 "Received TICKET_ITERATION_NEXT message\n");
2809 rid = ntohl (tis_msg->id);
2810 for (ti = client->ticket_iter_head; NULL != ti; ti = ti->next)
2811 if (ti->r_id == rid)
2816 GNUNET_SERVICE_client_drop (client->client);
2819 run_ticket_iteration_round (ti);
2820 GNUNET_SERVICE_client_continue (client->client);
2827 * Main function that will be run
2829 * @param cls closure
2830 * @param args remaining command-line arguments
2831 * @param cfgfile name of the configuration file used (for saving, can be NULL)
2832 * @param c configuration
2836 const struct GNUNET_CONFIGURATION_Handle *c,
2837 struct GNUNET_SERVICE_Handle *server)
2842 stats = GNUNET_STATISTICS_create ("identity-provider", cfg);
2844 //Connect to identity and namestore services
2845 ns_handle = GNUNET_NAMESTORE_connect (cfg);
2846 if (NULL == ns_handle)
2848 GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "error connecting to namestore");
2851 gns_handle = GNUNET_GNS_connect (cfg);
2852 if (NULL == gns_handle)
2854 GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "error connecting to gns");
2856 credential_handle = GNUNET_CREDENTIAL_connect (cfg);
2857 if (NULL == credential_handle)
2859 GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "error connecting to credential");
2861 identity_handle = GNUNET_IDENTITY_connect (cfg,
2865 /* Loading DB plugin */
2867 GNUNET_CONFIGURATION_get_value_string (cfg,
2868 "identity-provider",
2871 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2872 "No database backend configured\n");
2873 GNUNET_asprintf (&db_lib_name,
2874 "libgnunet_plugin_identity_provider_%s",
2876 TKT_database = GNUNET_PLUGIN_load (db_lib_name,
2878 GNUNET_free (database);
2879 if (NULL == TKT_database)
2881 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2882 "Could not load database backend `%s'\n",
2884 GNUNET_SCHEDULER_shutdown ();
2889 GNUNET_CONFIGURATION_get_value_time (cfg,
2890 "identity-provider",
2891 "TOKEN_EXPIRATION_INTERVAL",
2892 &token_expiration_interval))
2894 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2895 "Time window for zone iteration: %s\n",
2896 GNUNET_STRINGS_relative_time_to_string (token_expiration_interval,
2899 token_expiration_interval = DEFAULT_TOKEN_EXPIRATION_INTERVAL;
2902 GNUNET_SCHEDULER_add_shutdown (&do_shutdown, NULL);
2906 * Called whenever a client is disconnected.
2908 * @param cls closure
2909 * @param client identification of the client
2910 * @param app_ctx @a client
2913 client_disconnect_cb (void *cls,
2914 struct GNUNET_SERVICE_Client *client,
2917 struct IdpClient *idp = app_ctx;
2918 struct AttributeIterator *ai;
2920 //TODO other operations
2922 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2923 "Client %p disconnected\n",
2926 while (NULL != (ai = idp->op_head))
2928 GNUNET_CONTAINER_DLL_remove (idp->op_head,
2938 * Add a client to our list of active clients.
2941 * @param client client to add
2942 * @param mq message queue for @a client
2943 * @return internal namestore client structure for this client
2946 client_connect_cb (void *cls,
2947 struct GNUNET_SERVICE_Client *client,
2948 struct GNUNET_MQ_Handle *mq)
2950 struct IdpClient *idp;
2951 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2952 "Client %p connected\n",
2954 idp = GNUNET_new (struct IdpClient);
2955 idp->client = client;
2963 * Define "main" method using service macro.
2966 ("identity-provider",
2967 GNUNET_SERVICE_OPTION_NONE,
2970 &client_disconnect_cb,
2972 GNUNET_MQ_hd_var_size (issue_message,
2973 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ISSUE,
2974 struct IssueMessage,
2976 GNUNET_MQ_hd_var_size (exchange_message,
2977 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_EXCHANGE,
2978 struct ExchangeMessage,
2980 GNUNET_MQ_hd_var_size (attribute_store_message,
2981 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_STORE,
2982 struct AttributeStoreMessage,
2984 GNUNET_MQ_hd_fixed_size (iteration_start,
2985 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_ITERATION_START,
2986 struct AttributeIterationStartMessage,
2988 GNUNET_MQ_hd_fixed_size (iteration_next,
2989 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_ITERATION_NEXT,
2990 struct AttributeIterationNextMessage,
2992 GNUNET_MQ_hd_fixed_size (iteration_stop,
2993 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_ATTRIBUTE_ITERATION_STOP,
2994 struct AttributeIterationStopMessage,
2996 GNUNET_MQ_hd_var_size (ticket_issue_message,
2997 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_ISSUE,
2998 struct TicketIssueMessage,
3000 GNUNET_MQ_hd_var_size (consume_ticket_message,
3001 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_CONSUME_TICKET,
3002 struct ConsumeTicketMessage,
3004 GNUNET_MQ_hd_fixed_size (ticket_iteration_start,
3005 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_ITERATION_START,
3006 struct TicketIterationStartMessage,
3008 GNUNET_MQ_hd_fixed_size (ticket_iteration_next,
3009 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_ITERATION_NEXT,
3010 struct TicketIterationNextMessage,
3012 GNUNET_MQ_hd_fixed_size (ticket_iteration_stop,
3013 GNUNET_MESSAGE_TYPE_IDENTITY_PROVIDER_TICKET_ITERATION_STOP,
3014 struct TicketIterationStopMessage,
3017 GNUNET_MQ_handler_end());
3018 /* end of gnunet-service-identity-provider.c */