src/test/rend_test_helpers.c

   1 /* Copyright (c) 2014-2019, The Tor Project, Inc. */
   2 /* See LICENSE for licensing information */
   3
   4 #include "core/or/or.h"
   5 #include "lib/crypt_ops/crypto_rand.h"
   6 #include "test/test.h"
   7 #include "feature/rend/rendcommon.h"
   8 #include "test/rend_test_helpers.h"
   9
  10 #include "core/or/extend_info_st.h"
  11 #include "feature/rend/rend_intro_point_st.h"
  12 #include "feature/rend/rend_service_descriptor_st.h"
  13
  14 void
  15 generate_desc(int time_diff, rend_encoded_v2_service_descriptor_t **desc,
  16               char **service_id, int intro_points)
  17 {
  18   rend_service_descriptor_t *generated = NULL;
  19   smartlist_t *descs = smartlist_new();
  20   time_t now;
  21
  22   now = time(NULL) + time_diff;
  23   create_descriptor(&generated, service_id, intro_points);
  24   generated->timestamp = now;
  25
  26   rend_encode_v2_descriptors(descs, generated, now, 0, REND_NO_AUTH, NULL,
  27                              NULL);
  28   tor_assert(smartlist_len(descs) > 1);
  29   *desc = smartlist_get(descs, 0);
  30   smartlist_set(descs, 0, NULL);
  31
  32   SMARTLIST_FOREACH(descs, rend_encoded_v2_service_descriptor_t *, d,
  33                     rend_encoded_v2_service_descriptor_free(d));
  34   smartlist_free(descs);
  35   rend_service_descriptor_free(generated);
  36 }
  37
  38 void
  39 create_descriptor(rend_service_descriptor_t **generated, char **service_id,
  40                   int intro_points)
  41 {
  42   crypto_pk_t *pk1 = NULL;
  43   crypto_pk_t *pk2 = NULL;
  44   int i;
  45
  46   *service_id = tor_malloc(REND_SERVICE_ID_LEN_BASE32+1);
  47   pk1 = pk_generate(0);
  48   pk2 = pk_generate(1);
  49
  50   *generated = tor_malloc_zero(sizeof(rend_service_descriptor_t));
  51   (*generated)->pk = crypto_pk_dup_key(pk1);
  52   rend_get_service_id((*generated)->pk, *service_id);
  53
  54   (*generated)->version = 2;
  55   (*generated)->protocols = 42;
  56   (*generated)->intro_nodes = smartlist_new();
  57
  58   for (i = 0; i < intro_points; i++) {
  59     rend_intro_point_t *intro = tor_malloc_zero(sizeof(rend_intro_point_t));
  60     crypto_pk_t *okey = pk_generate(2 + i);
  61     intro->extend_info = tor_malloc_zero(sizeof(extend_info_t));
  62     intro->extend_info->onion_key = okey;
  63     crypto_pk_get_digest(intro->extend_info->onion_key,
  64                          intro->extend_info->identity_digest);
  65     intro->extend_info->nickname[0] = '$';
  66     base16_encode(intro->extend_info->nickname + 1,
  67                   sizeof(intro->extend_info->nickname) - 1,
  68                   intro->extend_info->identity_digest, DIGEST_LEN);
  69     tor_addr_from_ipv4h(&intro->extend_info->addr, crypto_rand_int(65536));
  70     intro->extend_info->port = 1 + crypto_rand_int(65535);
  71     intro->intro_key = crypto_pk_dup_key(pk2);
  72     smartlist_add((*generated)->intro_nodes, intro);
  73   }
  74
  75   crypto_pk_free(pk1);
  76   crypto_pk_free(pk2);
  77 }
  78
  79 rend_data_t *
  80 mock_rend_data(const char *onion_address)
  81 {
  82   rend_data_v2_t *v2_data = tor_malloc_zero(sizeof(*v2_data));
  83   rend_data_t *rend_query = &v2_data->base_;
  84   rend_query->version = 2;
  85
  86   strlcpy(v2_data->onion_address, onion_address,
  87           sizeof(v2_data->onion_address));
  88   v2_data->auth_type = REND_NO_AUTH;
  89   rend_query->hsdirs_fp = smartlist_new();
  90   smartlist_add(rend_query->hsdirs_fp, tor_memdup("aaaaaaaaaaaaaaaaaaaaaaaa",
  91                                                  DIGEST_LEN));
  92   return rend_query;
  93 }
  94