static void
test_fast_handshake(void *arg)
{
/* tests for the obsolete "CREATE_FAST" handshake. */
(void) arg;
fast_handshake_state_t *state = NULL;
uint8_t client_handshake[CREATE_FAST_LEN];
uint8_t server_handshake[CREATED_FAST_LEN];
uint8_t s_keys[100], c_keys[100];
/* First, test an entire handshake. */
memset(client_handshake, 0, sizeof(client_handshake));
tt_int_op(0, OP_EQ, fast_onionskin_create(&state, client_handshake));
tt_assert(! tor_mem_is_zero((char*)client_handshake,
sizeof(client_handshake)));
tt_int_op(0, OP_EQ,
fast_server_handshake(client_handshake, server_handshake,
s_keys, 100));
const char *msg = NULL;
tt_int_op(0, OP_EQ,
fast_client_handshake(state, server_handshake, c_keys, 100, &msg));
tt_ptr_op(msg, OP_EQ, NULL);
tt_mem_op(s_keys, OP_EQ, c_keys, 100);
/* Now test a failing handshake. */
server_handshake[0] ^= 3;
tt_int_op(-1, OP_EQ,
fast_client_handshake(state, server_handshake, c_keys, 100, &msg));
tt_str_op(msg, OP_EQ, "Digest DOES NOT MATCH on fast handshake. "
"Bug or attack.");
done:
fast_handshake_state_free(state);
}
/** Release whatever storage is held in <b>state</b>, depending on its
* type, and clear its pointer. */
void
onion_handshake_state_release(onion_handshake_state_t *state)
{
switch (state->tag) {
case ONION_HANDSHAKE_TYPE_TAP:
crypto_dh_free(state->u.tap);
state->u.tap = NULL;
break;
case ONION_HANDSHAKE_TYPE_FAST:
fast_handshake_state_free(state->u.fast);
state->u.fast = NULL;
break;
case ONION_HANDSHAKE_TYPE_NTOR:
ntor_handshake_state_free(state->u.ntor);
state->u.ntor = NULL;
break;
default:
/* LCOV_EXCL_START
* This state should not even exist. */
log_warn(LD_BUG, "called with unknown handshake state type %d",
(int)state->tag);
tor_fragile_assert();
/* LCOV_EXCL_STOP */
}
}
/** Release whatever storage is held in <b>state</b>, depending on its
* type, and clear its pointer. */
void
onion_handshake_state_release(onion_handshake_state_t *state)
{
switch (state->tag) {
case ONION_HANDSHAKE_TYPE_TAP:
crypto_dh_free(state->u.tap);
state->u.tap = NULL;
break;
case ONION_HANDSHAKE_TYPE_FAST:
fast_handshake_state_free(state->u.fast);
state->u.fast = NULL;
break;
case ONION_HANDSHAKE_TYPE_NTOR:
ntor_handshake_state_free(state->u.ntor);
state->u.ntor = NULL;
break;
default:
log_warn(LD_BUG, "called with unknown handshake state type %d",
(int)state->tag);
tor_fragile_assert();
}
}
