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test: Add test for closing intro circuits when storing a new descriptor
This is client side and related to 27471 for previous commit that fixes this issue. Signed-off-by: David Goulet <dgoulet@torproject.org>
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@ -885,6 +885,107 @@ test_desc_has_arrived_cleanup(void *arg)
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UNMOCK(router_have_minimum_dir_info);
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}
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static void
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test_close_intro_circuits_new_desc(void *arg)
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{
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int ret;
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ed25519_keypair_t service_kp;
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circuit_t *circ = NULL;
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origin_circuit_t *ocirc = NULL;
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hs_descriptor_t *desc1 = NULL, *desc2 = NULL;
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(void) arg;
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hs_init();
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/* This is needed because of the client cache expiration timestamp is based
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* on having a consensus. See cached_client_descriptor_has_expired(). */
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MOCK(networkstatus_get_live_consensus,
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mock_networkstatus_get_live_consensus);
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/* Set consensus time */
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parse_rfc1123_time("Sat, 26 Oct 1985 13:00:00 UTC",
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&mock_ns.valid_after);
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parse_rfc1123_time("Sat, 26 Oct 1985 14:00:00 UTC",
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&mock_ns.fresh_until);
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parse_rfc1123_time("Sat, 26 Oct 1985 16:00:00 UTC",
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&mock_ns.valid_until);
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/* Generate service keypair */
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tt_int_op(0, OP_EQ, ed25519_keypair_generate(&service_kp, 0));
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/* Create and add to the global list a dummy client introduction circuits.
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* We'll then make sure the hs_ident is attached to a dummy descriptor. */
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circ = dummy_origin_circuit_new(0);
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tt_assert(circ);
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circ->purpose = CIRCUIT_PURPOSE_C_INTRODUCING;
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ocirc = TO_ORIGIN_CIRCUIT(circ);
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/* Build the first descriptor and cache it. */
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{
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char *encoded;
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desc1 = hs_helper_build_hs_desc_with_ip(&service_kp);
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tt_assert(desc1);
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ret = hs_desc_encode_descriptor(desc1, &service_kp, NULL, &encoded);
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tt_int_op(ret, OP_EQ, 0);
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tt_assert(encoded);
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/* Store it */
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ret = hs_cache_store_as_client(encoded, &service_kp.pubkey);
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tt_int_op(ret, OP_EQ, 0);
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tor_free(encoded);
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tt_assert(hs_cache_lookup_as_client(&service_kp.pubkey));
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}
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/* We'll pick one introduction point and associate it with the circuit. */
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{
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const hs_desc_intro_point_t *ip =
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smartlist_get(desc1->encrypted_data.intro_points, 0);
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tt_assert(ip);
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ocirc->hs_ident = hs_ident_circuit_new(&service_kp.pubkey,
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HS_IDENT_CIRCUIT_INTRO);
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ed25519_pubkey_copy(ô->hs_ident->intro_auth_pk,
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&ip->auth_key_cert->signed_key);
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}
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/* Before we are about to clean up the intro circuits, make sure it is
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* actually there. */
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tt_assert(circuit_get_next_intro_circ(NULL, true));
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/* Build the second descriptor for the same service and cache it. */
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{
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char *encoded;
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desc2 = hs_helper_build_hs_desc_with_ip(&service_kp);
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tt_assert(desc2);
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tt_mem_op(&desc1->plaintext_data.signing_pubkey, OP_EQ,
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&desc2->plaintext_data.signing_pubkey, ED25519_PUBKEY_LEN);
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/* To replace the existing descriptor, the revision counter needs to be
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* bigger. */
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desc2->plaintext_data.revision_counter =
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desc1->plaintext_data.revision_counter + 1;
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ret = hs_desc_encode_descriptor(desc2, &service_kp, NULL, &encoded);
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tt_int_op(ret, OP_EQ, 0);
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tt_assert(encoded);
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hs_cache_store_as_client(encoded, &service_kp.pubkey);
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tt_int_op(ret, OP_EQ, 0);
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tor_free(encoded);
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tt_assert(hs_cache_lookup_as_client(&service_kp.pubkey));
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}
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/* Once stored, our intro circuit should be closed because it is related to
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* an old introduction point that doesn't exists anymore. */
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tt_assert(!circuit_get_next_intro_circ(NULL, true));
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done:
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circuit_free(circ);
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hs_descriptor_free(desc1);
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hs_descriptor_free(desc2);
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hs_free_all();
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UNMOCK(networkstatus_get_live_consensus);
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}
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struct testcase_t hs_client_tests[] = {
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{ "e2e_rend_circuit_setup_legacy", test_e2e_rend_circuit_setup_legacy,
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TT_FORK, NULL, NULL },
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@ -902,6 +1003,8 @@ struct testcase_t hs_client_tests[] = {
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TT_FORK, NULL, NULL },
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{ "desc_has_arrived_cleanup", test_desc_has_arrived_cleanup,
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TT_FORK, NULL, NULL },
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{ "close_intro_circuits_new_desc", test_close_intro_circuits_new_desc,
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TT_FORK, NULL, NULL },
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END_OF_TESTCASES
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};
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