1 files changed, 0 insertions, 86 deletions
diff --git a/src/or/proto_cell.c b/src/or/proto_cell.c
deleted file mode 100644
index 41554bd1b0..0000000000
--- a/src/or/proto_cell.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* 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 */
-
-#include "or/or.h"
-#include "lib/container/buffers.h"
-#include "or/proto_cell.h"
-
-#include "or/connection_or.h"
-
-#include "or/var_cell_st.h"
-
-/** True iff the cell command <b>command</b> is one that implies a
- * variable-length cell in Tor link protocol <b>linkproto</b>. */
-static inline int
-cell_command_is_var_length(uint8_t command, int linkproto)
-{
-  /* If linkproto is v2 (2), CELL_VERSIONS is the only variable-length cells
-   * work as implemented here. If it's 1, there are no variable-length cells.
-   * Tor does not support other versions right now, and so can't negotiate
-   * them.
-   */
-  switch (linkproto) {
-  case 1:
-    /* Link protocol version 1 has no variable-length cells. */
-    return 0;
-  case 2:
-    /* In link protocol version 2, VERSIONS is the only variable-length cell */
-    return command == CELL_VERSIONS;
-  case 0:
-  case 3:
-  default:
-    /* In link protocol version 3 and later, and in version "unknown",
-     * commands 128 and higher indicate variable-length. VERSIONS is
-     * grandfathered in. */
-    return command == CELL_VERSIONS || command >= 128;
-  }
-}
-
-/** Check <b>buf</b> for a variable-length cell according to the rules of link
- * protocol version <b>linkproto</b>.  If one is found, pull it off the buffer
- * and assign a newly allocated var_cell_t to *<b>out</b>, and return 1.
- * Return 0 if whatever is on the start of buf_t is not a variable-length
- * cell.  Return 1 and set *<b>out</b> to NULL if there seems to be the start
- * of a variable-length cell on <b>buf</b>, but the whole thing isn't there
- * yet. */
-int
-fetch_var_cell_from_buf(buf_t *buf, var_cell_t **out, int linkproto)
-{
-  char hdr[VAR_CELL_MAX_HEADER_SIZE];
-  var_cell_t *result;
-  uint8_t command;
-  uint16_t length;
-  const int wide_circ_ids = linkproto >= MIN_LINK_PROTO_FOR_WIDE_CIRC_IDS;
-  const int circ_id_len = get_circ_id_size(wide_circ_ids);
-  const unsigned header_len = get_var_cell_header_size(wide_circ_ids);
-  *out = NULL;
-  if (buf_datalen(buf) < header_len)
-    return 0;
-  buf_peek(buf, hdr, header_len);
-
-  command = get_uint8(hdr + circ_id_len);
-  if (!(cell_command_is_var_length(command, linkproto)))
-    return 0;
-
-  length = ntohs(get_uint16(hdr + circ_id_len + 1));
-  if (buf_datalen(buf) < (size_t)(header_len+length))
-    return 1;
-
-  result = var_cell_new(length);
-  result->command = command;
-  if (wide_circ_ids)
-    result->circ_id = ntohl(get_uint32(hdr));
-  else
-    result->circ_id = ntohs(get_uint16(hdr));
-
-  buf_drain(buf, header_len);
-  buf_peek(buf, (char*) result->payload, length);
-  buf_drain(buf, length);
-
-  *out = result;
-  return 1;
-}
-