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, 58 insertions, 0 deletions

diff --git a/src/feature/hs/hs_stats.c b/src/feature/hs/hs_stats.c
new file mode 100644
index 0000000000..c8a99b19d4
--- /dev/null
+++ b/src/feature/hs/hs_stats.c
@@ -0,0 +1,58 @@
+/* Copyright (c) 2016-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file hs_stats.c
+ * \brief Keeps stats about the activity of our onion service(s).
+ **/
+
+#include "or/or.h"
+#include "or/hs_stats.h"
+#include "or/hs_service.h"
+
+/** Number of v3 INTRODUCE2 cells received */
+static uint32_t n_introduce2_v3 = 0;
+/** Number of v2 INTRODUCE2 cells received */
+static uint32_t n_introduce2_v2 = 0;
+/** Number of attempts to make a circuit to a rendezvous point */
+static uint32_t n_rendezvous_launches = 0;
+
+/** Note that we received another INTRODUCE2 cell. */
+void
+hs_stats_note_introduce2_cell(int is_hsv3)
+{
+  if (is_hsv3) {
+    n_introduce2_v3++;
+  } else {
+    n_introduce2_v2++;
+  }
+}
+
+/** Return the number of v3 INTRODUCE2 cells we have received. */
+uint32_t
+hs_stats_get_n_introduce2_v3_cells(void)
+{
+  return n_introduce2_v3;
+}
+
+/** Return the number of v2 INTRODUCE2 cells we have received. */
+uint32_t
+hs_stats_get_n_introduce2_v2_cells(void)
+{
+  return n_introduce2_v2;
+}
+
+/** Note that we attempted to launch another circuit to a rendezvous point. */
+void
+hs_stats_note_service_rendezvous_launch(void)
+{
+  n_rendezvous_launches++;
+}
+
+/** Return the number of rendezvous circuits we have attempted to launch. */
+uint32_t
+hs_stats_get_n_rendezvous_launches(void)
+{
+  return n_rendezvous_launches;
+}
+