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test: Add test for closing intro circuits when storing a new descriptor

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This is client side and related to 27471 for previous commit that fixes this
issue.

Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit is contained in:
David Goulet 2018-10-12 10:30:33 -04:00
parent 9ba16c4d03
commit 8b2e72106a
1 changed files with 103 additions and 0 deletions
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103
src/test/test_hs_client.c
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@ -885,6 +885,107 @@ test_desc_has_arrived_cleanup(void *arg)
UNMOCK(router_have_minimum_dir_info);
}
static void
test_close_intro_circuits_new_desc(void *arg)
{
int ret;
ed25519_keypair_t service_kp;
circuit_t *circ = NULL;
origin_circuit_t *ocirc = NULL;
hs_descriptor_t *desc1 = NULL, *desc2 = NULL;
(void) arg;
hs_init();
/* This is needed because of the client cache expiration timestamp is based
* on having a consensus. See cached_client_descriptor_has_expired(). */
MOCK(networkstatus_get_live_consensus,
mock_networkstatus_get_live_consensus);
/* Set consensus time */
parse_rfc1123_time("Sat, 26 Oct 1985 13:00:00 UTC",
&mock_ns.valid_after);
parse_rfc1123_time("Sat, 26 Oct 1985 14:00:00 UTC",
&mock_ns.fresh_until);
parse_rfc1123_time("Sat, 26 Oct 1985 16:00:00 UTC",
&mock_ns.valid_until);
/* Generate service keypair */
tt_int_op(0, OP_EQ, ed25519_keypair_generate(&service_kp, 0));
/* Create and add to the global list a dummy client introduction circuits.
* We'll then make sure the hs_ident is attached to a dummy descriptor. */
circ = dummy_origin_circuit_new(0);
tt_assert(circ);
circ->purpose = CIRCUIT_PURPOSE_C_INTRODUCING;
ocirc = TO_ORIGIN_CIRCUIT(circ);
/* Build the first descriptor and cache it. */
{
char *encoded;
desc1 = hs_helper_build_hs_desc_with_ip(&service_kp);
tt_assert(desc1);
ret = hs_desc_encode_descriptor(desc1, &service_kp, NULL, &encoded);
tt_int_op(ret, OP_EQ, 0);
tt_assert(encoded);
/* Store it */
ret = hs_cache_store_as_client(encoded, &service_kp.pubkey);
tt_int_op(ret, OP_EQ, 0);
tor_free(encoded);
tt_assert(hs_cache_lookup_as_client(&service_kp.pubkey));
}
/* We'll pick one introduction point and associate it with the circuit. */
{
const hs_desc_intro_point_t *ip =
smartlist_get(desc1->encrypted_data.intro_points, 0);
tt_assert(ip);
ocirc->hs_ident = hs_ident_circuit_new(&service_kp.pubkey,
HS_IDENT_CIRCUIT_INTRO);
ed25519_pubkey_copy(&ocirc->hs_ident->intro_auth_pk,
&ip->auth_key_cert->signed_key);
}
/* Before we are about to clean up the intro circuits, make sure it is
* actually there. */
tt_assert(circuit_get_next_intro_circ(NULL, true));
/* Build the second descriptor for the same service and cache it. */
{
char *encoded;
desc2 = hs_helper_build_hs_desc_with_ip(&service_kp);
tt_assert(desc2);
tt_mem_op(&desc1->plaintext_data.signing_pubkey, OP_EQ,
&desc2->plaintext_data.signing_pubkey, ED25519_PUBKEY_LEN);
/* To replace the existing descriptor, the revision counter needs to be
* bigger. */
desc2->plaintext_data.revision_counter =
desc1->plaintext_data.revision_counter + 1;
ret = hs_desc_encode_descriptor(desc2, &service_kp, NULL, &encoded);
tt_int_op(ret, OP_EQ, 0);
tt_assert(encoded);
hs_cache_store_as_client(encoded, &service_kp.pubkey);
tt_int_op(ret, OP_EQ, 0);
tor_free(encoded);
tt_assert(hs_cache_lookup_as_client(&service_kp.pubkey));
}
/* Once stored, our intro circuit should be closed because it is related to
* an old introduction point that doesn't exists anymore. */
tt_assert(!circuit_get_next_intro_circ(NULL, true));
done:
circuit_free(circ);
hs_descriptor_free(desc1);
hs_descriptor_free(desc2);
hs_free_all();
UNMOCK(networkstatus_get_live_consensus);
}
struct testcase_t hs_client_tests[] = {
{ "e2e_rend_circuit_setup_legacy", test_e2e_rend_circuit_setup_legacy,
TT_FORK, NULL, NULL },
@ -902,6 +1003,8 @@ struct testcase_t hs_client_tests[] = {
TT_FORK, NULL, NULL },
{ "desc_has_arrived_cleanup", test_desc_has_arrived_cleanup,
TT_FORK, NULL, NULL },
{ "close_intro_circuits_new_desc", test_close_intro_circuits_new_desc,
TT_FORK, NULL, NULL },
END_OF_TESTCASES
};