Split most of dirserv.c into several new modules

In dirauth:
  * bwauth.c reads and uses bandwidth files
  * guardfraction.c reads and uses the guardfraction file
  * reachability.c tests relay reachability
  * recommend_pkg.c handles the recommended-packages lines.
  * recv_descs.c handles fingerprint files and processing incoming
    routerinfos that relays upload to us
  * voteflag.c computes flag thresholds and sets those thresholds on
    routerstatuses when computing votes

In control:
  * fmt_serverstatus.c generates the ancient "v1 server status"
    format that controllers expect.

In nodelist:
  * routerstatus_fmt.c formats routerstatus entries for a consensus,
    a vote, or for the controller.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/feature/nodelist/fmt_routerstatus.h b/src/feature/nodelist/fmt_routerstatus.h
new file mode 100644
index 0000000000..1a6630d266
--- /dev/null
+++ b/src/feature/nodelist/fmt_routerstatus.h
@@ -0,0 +1,41 @@
+/* Copyright (c) 2001 Matej Pfajfar.
+ * Copyright (c) 2001-2004, Roger Dingledine.
+ * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
+ * Copyright (c) 2007-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file fmt_routerstatus.h
+ * \brief Header file for fmt_routerstatus.c.
+ **/
+
+#ifndef TOR_FMT_ROUTERSTATUS_H
+#define TOR_FMT_ROUTERSTATUS_H
+
+/** An enum to describe what format we're generating a routerstatus line in.
+ */
+typedef enum {
+  /** For use in a v2 opinion */
+  NS_V2,
+  /** For use in a consensus networkstatus document (ns flavor) */
+  NS_V3_CONSENSUS,
+  /** For use in a vote networkstatus document */
+  NS_V3_VOTE,
+  /** For passing to the controlport in response to a GETINFO request */
+  NS_CONTROL_PORT,
+  /** For use in a consensus networkstatus document (microdesc flavor) */
+  NS_V3_CONSENSUS_MICRODESC
+} routerstatus_format_type_t;
+
+/** Maximum allowable length of a version line in a networkstatus. */
+#define MAX_V_LINE_LEN 128
+
+char *routerstatus_format_entry(
+                              const routerstatus_t *rs,
+                              const char *version,
+                              const char *protocols,
+                              routerstatus_format_type_t format,
+                              int consensus_method,
+                              const vote_routerstatus_t *vrs);
+
+#endif /* !defined(TOR_FMT_ROUTERSTATUS_H) */