Commit 6ee19e57 authored by Nick Mathewson's avatar Nick Mathewson 🦀
Browse files

Merge branch 'bug31107_040' into bug31107_041

parents 4596ead2 da8ba501

changes/bug31107

0 → 100644
+4 −0
Original line number Diff line number Diff line 
  o Minor bugfixes (logging, protocol violations):

    - Do not log a nonfatal assertion failure when receiving a VERSIONS

      cell on a connection using the obsolete v1 link protocol. Log a

      protocol_warn instead. Fixes bug 31107; bugfix on 0.2.4.4-alpha.

src/core/or/channeltls.c

+9 −1
Original line number Diff line number Diff line
@@ -1106,7 +1106,15 @@ channel_tls_handle_cell(cell_t *cell, or_connection_t *conn) 
      /* do nothing */

      break;

    case CELL_VERSIONS:

      tor_fragile_assert();

      /* A VERSIONS cell should always be a variable-length cell, and

       * so should never reach this function (which handles constant-sized

       * cells). But if the connection is using the (obsolete) v1 link

       * protocol, all cells will be treated as constant-sized, and so

       * it's possible we'll reach this code.

       */

      log_fn(LOG_PROTOCOL_WARN, LD_CHANNEL,

             "Received unexpected VERSIONS cell on a channel using link "

             "protocol %d; ignoring.", conn->link_proto);

      break;

    case CELL_NETINFO:

      ++stats_n_netinfo_cells_processed;