Move literally everything out of src/or

This commit won't build yet -- it just puts everything in a slightly
more logical place.

The reasoning here is that "src/core" will hold the stuff that every (or
nearly every) tor instance will need in order to do onion routing.
Other features (including some necessary ones) will live in
"src/feature".  The "src/app" directory will hold the stuff needed
to have Tor be an application you can actually run.

This commit DOES NOT refactor the former contents of src/or into a
logical set of acyclic libraries, or change any code at all.  That
will have to come in the future.

We will continue to move things around and split them in the future,
but I hope this lays a reasonable groundwork for doing so.

1 files changed, 75 insertions, 0 deletions

diff --git a/src/feature/hs/hs_circuit.h b/src/feature/hs/hs_circuit.h
new file mode 100644
index 0000000000..425070f4ca
--- /dev/null
+++ b/src/feature/hs/hs_circuit.h
@@ -0,0 +1,75 @@
+/* Copyright (c) 2017-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file hs_circuit.h
+ * \brief Header file containing circuit data for the whole HS subsytem.
+ **/
+
+#ifndef TOR_HS_CIRCUIT_H
+#define TOR_HS_CIRCUIT_H
+
+#include "or/or.h"
+#include "lib/crypt_ops/crypto_ed25519.h"
+
+#include "or/hs_service.h"
+
+/* Cleanup function when the circuit is closed or/and freed. */
+void hs_circ_cleanup(circuit_t *circ);
+
+/* Circuit API. */
+int hs_circ_service_intro_has_opened(hs_service_t *service,
+                                     hs_service_intro_point_t *ip,
+                                     const hs_service_descriptor_t *desc,
+                                     origin_circuit_t *circ);
+void hs_circ_service_rp_has_opened(const hs_service_t *service,
+                                   origin_circuit_t *circ);
+int hs_circ_launch_intro_point(hs_service_t *service,
+                               const hs_service_intro_point_t *ip,
+                               extend_info_t *ei);
+int hs_circ_launch_rendezvous_point(const hs_service_t *service,
+                                    const curve25519_public_key_t *onion_key,
+                                    const uint8_t *rendezvous_cookie);
+void hs_circ_retry_service_rendezvous_point(origin_circuit_t *circ);
+
+origin_circuit_t *hs_circ_service_get_intro_circ(
+                                      const hs_service_intro_point_t *ip);
+
+/* Cell API. */
+int hs_circ_handle_intro_established(const hs_service_t *service,
+                                     const hs_service_intro_point_t *ip,
+                                     origin_circuit_t *circ,
+                                     const uint8_t *payload,
+                                     size_t payload_len);
+int hs_circ_handle_introduce2(const hs_service_t *service,
+                              const origin_circuit_t *circ,
+                              hs_service_intro_point_t *ip,
+                              const uint8_t *subcredential,
+                              const uint8_t *payload, size_t payload_len);
+int hs_circ_send_introduce1(origin_circuit_t *intro_circ,
+                            origin_circuit_t *rend_circ,
+                            const hs_desc_intro_point_t *ip,
+                            const uint8_t *subcredential);
+int hs_circ_send_establish_rendezvous(origin_circuit_t *circ);
+
+/* e2e circuit API. */
+
+int hs_circuit_setup_e2e_rend_circ(origin_circuit_t *circ,
+                                   const uint8_t *ntor_key_seed,
+                                   size_t seed_len,
+                                   int is_service_side);
+int hs_circuit_setup_e2e_rend_circ_legacy_client(origin_circuit_t *circ,
+                                          const uint8_t *rend_cell_body);
+
+#ifdef HS_CIRCUIT_PRIVATE
+
+STATIC hs_ident_circuit_t *
+create_rp_circuit_identifier(const hs_service_t *service,
+                             const uint8_t *rendezvous_cookie,
+                             const curve25519_public_key_t *server_pk,
+                             const hs_ntor_rend_cell_keys_t *keys);
+
+#endif /* defined(HS_CIRCUIT_PRIVATE) */
+
+#endif /* !defined(TOR_HS_CIRCUIT_H) */
+