Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 478 insertions, 0 deletions

diff --git a/epan/dissectors/packet-clique-rm.c b/epan/dissectors/packet-clique-rm.c
new file mode 100644
index 00000000..35812956
--- /dev/null
+++ b/epan/dissectors/packet-clique-rm.c
@@ -0,0 +1,478 @@
+/* packet-clique_rm.c
+ * Routines for clique reliable multicast dissector
+ * Copyright 2007, Collabora Ltd.
+ *   @author: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+
+void proto_register_clique_rm(void);
+void proto_reg_handoff_clique_rm(void);
+
+/* Initialize the protocol and registered fields */
+static int proto_clique_rm = -1;
+
+static int hf_clique_rm_version = -1;
+static int hf_clique_rm_type = -1;
+static int hf_clique_rm_sender = -1;
+static int hf_clique_rm_packet_id = -1;
+static int hf_clique_rm_depends = -1;
+static int hf_clique_rm_depend_sender = -1;
+static int hf_clique_rm_depend_packet_id = -1;
+static int hf_clique_rm_failures = -1;
+static int hf_clique_rm_failures_senders = -1;
+static int hf_clique_rm_attempt_join = -1;
+static int hf_clique_rm_attempt_join_senders = -1;
+static int hf_clique_rm_join_failures = -1;
+static int hf_clique_rm_join_failures_senders = -1;
+static int hf_clique_rm_data_flags = -1;
+static int hf_clique_rm_data_size = -1;
+static int hf_clique_rm_data_stream_id = -1;
+static int hf_clique_rm_data_data = -1;
+static int hf_clique_rm_whois_request_id = -1;
+static int hf_clique_rm_whois_reply_name = -1;
+static int hf_clique_rm_whois_reply_name_length = -1;
+static int hf_clique_rm_repair_request_sender_id = -1;
+static int hf_clique_rm_repair_request_packet_id = -1;
+
+/* Initialize the subtree pointers */
+static gint ett_clique_rm = -1;
+static gint ett_clique_rm_data = -1;
+static gint ett_clique_rm_depends = -1;
+static gint ett_clique_rm_depends_item = -1;
+static gint ett_clique_rm_failures = -1;
+static gint ett_clique_rm_join_failures = -1;
+static gint ett_clique_rm_attempt_join = -1;
+static gint ett_clique_rm_join = -1;
+
+/* Packet types */
+typedef enum {
+  /* Unreliable packets */
+  PACKET_TYPE_WHOIS_REQUEST = 0,
+  PACKET_TYPE_WHOIS_REPLY,
+  PACKET_TYPE_REPAIR_REQUEST,
+  PACKET_TYPE_SESSION,
+  /* Reliable packets */
+  FIRST_RELIABLE_PACKET = 0xf,
+  PACKET_TYPE_DATA = FIRST_RELIABLE_PACKET,
+  /* No data just acknowledgement */
+  PACKET_TYPE_NO_DATA,
+  /* Some nodes failed */
+  PACKET_TYPE_FAILURE,
+  /* Start a joining attempt */
+  PACKET_TYPE_ATTEMPT_JOIN,
+  /* The real join */
+  PACKET_TYPE_JOIN,
+  /* Leaving now, bye */
+  PACKET_TYPE_BYE,
+  PACKET_TYPE_INVALID
+} GibberRMulticastPacketType;
+
+#define IS_RELIABLE(type) (type >= FIRST_RELIABLE_PACKET)
+
+static const value_string packet_type_vals[] = {
+  { PACKET_TYPE_WHOIS_REQUEST,   "Whois request" },
+  { PACKET_TYPE_WHOIS_REPLY,     "Whois reply"   },
+  { PACKET_TYPE_REPAIR_REQUEST,  "Repair request"},
+  { PACKET_TYPE_SESSION,         "Session"       },
+  { PACKET_TYPE_DATA,            "Data"          },
+  /* No data just acknowledgement */
+  { PACKET_TYPE_NO_DATA,         "No data"       },
+  /* Some nodes failed */
+  { PACKET_TYPE_FAILURE,         "Failure"       },
+  /* Start a joining attempt */
+  { PACKET_TYPE_ATTEMPT_JOIN,    "Attempt join"  },
+  /* The real join */
+  { PACKET_TYPE_JOIN,            "Join"          },
+  /* Leaving now, bye */
+  { PACKET_TYPE_BYE,             "Bye"           },
+
+  { 0,                 NULL                 }
+};
+
+static void
+dissect_sender_array(proto_tree *clique_rm_tree, int hf_header, gint ett_header,
+    int hf_header_sender, tvbuff_t *tvb, int offset)
+{
+  guint       i, count;
+  int         len;
+  proto_item *ti;
+  proto_tree *tree;
+
+
+  count = tvb_get_guint8(tvb, offset);
+  len   = 1 + 4 * count;
+  ti    = proto_tree_add_item(clique_rm_tree, hf_header, tvb, offset, 1, ENC_BIG_ENDIAN);
+  proto_item_set_len(ti, len);
+  tree  = proto_item_add_subtree(ti, ett_header);
+  offset++;
+
+  for (i = 0; i < count; i++, offset += 4)
+    proto_tree_add_item(tree, hf_header_sender, tvb, offset, 4, ENC_BIG_ENDIAN);
+}
+
+static void
+dissect_data_packet(proto_tree *clique_rm_tree, tvbuff_t *tvb, int offset)
+{
+  proto_tree *tree;
+
+  tree = proto_tree_add_subtree(clique_rm_tree, tvb, offset, -1, ett_clique_rm_data, NULL, "Data");
+
+  proto_tree_add_item(tree, hf_clique_rm_data_flags, tvb, offset, 1, ENC_BIG_ENDIAN);
+  offset += 1;
+
+  proto_tree_add_item(tree, hf_clique_rm_data_stream_id, tvb, offset, 2,
+      ENC_BIG_ENDIAN);
+  offset += 2;
+
+  proto_tree_add_item(tree, hf_clique_rm_data_size, tvb, offset, 4, ENC_BIG_ENDIAN);
+  offset += 4;
+
+
+  proto_tree_add_item(tree, hf_clique_rm_data_data, tvb, offset, -1, ENC_NA);
+}
+
+static int
+dissect_depends(proto_tree *clique_rm_tree, tvbuff_t *tvb, int offset)
+{
+  proto_item *ti;
+  proto_tree *tree, *depend_tree;
+  guint       ii, count;
+  int         len;
+
+  count = tvb_get_guint8(tvb, offset);
+  len   = 1 + count * 8;
+
+  ti = proto_tree_add_item(clique_rm_tree,
+          hf_clique_rm_depends, tvb, offset, 1, ENC_BIG_ENDIAN);
+  proto_item_set_len(ti, len);
+  offset += 1;
+
+  tree = proto_item_add_subtree(ti, ett_clique_rm_depends);
+  for (ii = 0; ii < count; ii++)
+  {
+     depend_tree = proto_tree_add_subtree_format(tree, tvb, offset, 8,
+                    ett_clique_rm_depends_item, NULL, "Depend item %d", ii+1);
+
+     proto_tree_add_item(depend_tree, hf_clique_rm_depend_sender,
+           tvb, offset, 4, ENC_BIG_ENDIAN);
+     proto_tree_add_item(depend_tree, hf_clique_rm_depend_packet_id,
+           tvb, offset+4, 4, ENC_BIG_ENDIAN);
+     offset += 8;
+  }
+
+  return len;
+}
+
+/* Code to actually dissect the packets */
+static void
+dissect_reliable_packet(proto_tree *clique_rm_tree, guint8 type, tvbuff_t *tvb, int offset)
+{
+  if (!clique_rm_tree)
+    return; /* no col_..() or expert...() calls in following */
+
+  proto_tree_add_item(clique_rm_tree, hf_clique_rm_packet_id, tvb, offset, 4,
+     ENC_BIG_ENDIAN);
+  offset += 4;
+
+  offset += dissect_depends(clique_rm_tree, tvb, offset);
+
+  switch (type)
+    {
+      case PACKET_TYPE_DATA:
+        dissect_data_packet(clique_rm_tree, tvb, offset);
+        break;
+      case PACKET_TYPE_NO_DATA:
+        break;
+      case PACKET_TYPE_FAILURE:
+        dissect_sender_array(clique_rm_tree, hf_clique_rm_failures,
+            ett_clique_rm_failures, hf_clique_rm_failures_senders, tvb, offset);
+        break;
+      case PACKET_TYPE_ATTEMPT_JOIN:
+        dissect_sender_array(clique_rm_tree, hf_clique_rm_attempt_join,
+            ett_clique_rm_attempt_join, hf_clique_rm_attempt_join_senders, tvb, offset);
+        break;
+      case PACKET_TYPE_JOIN:
+        dissect_sender_array(clique_rm_tree, hf_clique_rm_join_failures,
+            ett_clique_rm_join_failures, hf_clique_rm_join_failures_senders, tvb, offset);
+        break;
+      case PACKET_TYPE_BYE:
+        break;
+      default:
+        break;
+    }
+}
+
+static void
+dissect_unreliable_packet(proto_tree *clique_rm_tree, guint8 type, tvbuff_t *tvb, int offset)
+{
+  guint len;
+
+  if (!clique_rm_tree)
+    return; /* no col_..() or expert...() calls in following */
+
+  switch (type)
+    {
+      case PACKET_TYPE_WHOIS_REQUEST:
+        proto_tree_add_item(clique_rm_tree,
+          hf_clique_rm_whois_request_id, tvb, offset, 4, ENC_BIG_ENDIAN);
+        break;
+      case PACKET_TYPE_WHOIS_REPLY:
+        len = tvb_get_guint8(tvb, offset);
+        proto_tree_add_item(clique_rm_tree,
+          hf_clique_rm_whois_reply_name_length, tvb, offset, 1, ENC_BIG_ENDIAN);
+        offset += 1;
+        proto_tree_add_item(clique_rm_tree,
+          hf_clique_rm_whois_reply_name, tvb, offset, len, ENC_ASCII);
+        break;
+      case PACKET_TYPE_REPAIR_REQUEST:
+        proto_tree_add_item(clique_rm_tree,
+          hf_clique_rm_repair_request_sender_id, tvb, offset, 4, ENC_BIG_ENDIAN);
+        offset += 4;
+
+        proto_tree_add_item(clique_rm_tree,
+          hf_clique_rm_repair_request_packet_id, tvb, offset, 4, ENC_BIG_ENDIAN);
+        break;
+      case PACKET_TYPE_SESSION:
+        dissect_depends(clique_rm_tree, tvb, offset);
+        break;
+      default:
+        break;
+    }
+}
+
+
+static gboolean
+dissect_clique_rm(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+  proto_item *ti;
+  proto_tree *clique_rm_tree;
+  guint8      version;
+  guint8      type;
+  int         offset = 0;
+  guint64     qword;
+
+  if (tvb_captured_length(tvb) < 12)
+    return FALSE;
+
+  qword = tvb_get_ntoh48(tvb,0);
+  /* ASCII str for 'Clique' = 0x436c69717565 */
+  if(qword != G_GUINT64_CONSTANT (0x436c69717565))
+    return FALSE;
+  offset += 6;
+
+  version = tvb_get_guint8(tvb, offset);
+  if (version != 1)
+    return FALSE;
+  offset++;
+
+  type = tvb_get_guint8(tvb, offset);
+  offset++;
+
+  col_set_str(pinfo->cinfo, COL_PROTOCOL, "Clique-rm");
+  col_add_fstr(pinfo->cinfo, COL_INFO, "%s",
+               val_to_str(type, packet_type_vals, "Unknown (0x%02x)"));
+
+  /* rewind back to just behind the prefix */
+  offset = 6;
+
+  ti = proto_tree_add_item(tree, proto_clique_rm, tvb, 0, -1, ENC_NA);
+  clique_rm_tree = proto_item_add_subtree(ti, ett_clique_rm);
+
+  proto_tree_add_item(clique_rm_tree, hf_clique_rm_version, tvb, offset, 1,
+                      ENC_BIG_ENDIAN);
+  offset++;
+
+  proto_tree_add_item(clique_rm_tree, hf_clique_rm_type, tvb, offset, 1,
+                      ENC_BIG_ENDIAN);
+  offset++;
+
+  col_append_fstr(pinfo->cinfo, COL_INFO, ", sender: 0x%x",
+                    tvb_get_ntohl(tvb, offset));
+
+  proto_tree_add_item(clique_rm_tree, hf_clique_rm_sender, tvb, offset,
+                      4, ENC_BIG_ENDIAN);
+  offset += 4;
+
+  if (IS_RELIABLE(type)) {
+    col_append_fstr(pinfo->cinfo, COL_INFO, ", id: 0x%x",
+                      tvb_get_ntohl(tvb, offset));
+
+    dissect_reliable_packet(clique_rm_tree,   type, tvb, offset);
+  } else {
+    dissect_unreliable_packet(clique_rm_tree, type, tvb, offset);
+  }
+
+  return TRUE;
+}
+
+
+/* Register the protocol with Wireshark */
+
+void
+proto_register_clique_rm(void)
+{
+
+/* Setup list of header fields  See Section 1.6.1 for details*/
+  static hf_register_info hf[] = {
+    { &hf_clique_rm_version,
+      { "Version",           "clique_rm.version",
+        FT_UINT8, BASE_DEC, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_type,
+      { "Type",           "clique_rm.type",
+        FT_UINT8, BASE_HEX, VALS(packet_type_vals), 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_sender,
+      { "Sender",           "clique_rm.sender",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_packet_id,
+      { "Packet id",           "clique_rm.packet_id",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_depends,
+      { "Depends",           "clique_rm.depends",
+        FT_UINT8, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_depend_sender,
+      { "Sender",           "clique_rm.depends.sender",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_depend_packet_id,
+      { "Packet id",           "clique_rm.depends.packet_id",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_failures,
+      { "Failures",           "clique_rm.failures",
+        FT_UINT8, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_failures_senders,
+      { "Sender",           "clique_rm.failures.sender",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_attempt_join,
+      { "New attempt join senders", "clique_rm.attempt_join",
+        FT_UINT8, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_attempt_join_senders,
+      { "Sender",           "clique_rm.attempt_join.sender",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_join_failures,
+      { "Join failures",           "clique_rm.join_failures",
+        FT_UINT8, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_join_failures_senders,
+      { "Sender",           "clique_rm.join_failures.sender",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_data_flags,
+      { "Data flags",           "clique_rm.data.flags",
+        FT_UINT8, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_data_size,
+      { "Data total size",           "clique_rm.data.size",
+        FT_UINT32, BASE_DEC, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_data_stream_id,
+      { "Data stream id",           "clique_rm.data.stream_id",
+        FT_UINT16, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_data_data,
+      { "Raw data",           "clique_rm.data.data",
+        FT_BYTES, BASE_NONE, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_whois_request_id,
+      { "Whois request id",           "clique_rm.whois_request.id",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_whois_reply_name_length,
+      { "Whois reply name length",    "clique_rm.whois_reply.length",
+        FT_UINT8, BASE_DEC, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_whois_reply_name,
+      { "Whois reply name",           "clique_rm.whois_reply.name",
+        FT_STRINGZ, BASE_NONE, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_repair_request_sender_id,
+      { "Repair request for sender",
+        "clique_rm.repair_request.sender_id",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+    { &hf_clique_rm_repair_request_packet_id,
+      { "Repair request for packet",
+        "clique_rm.repair_request.packet_id",
+        FT_UINT32, BASE_HEX, NULL, 0x0,
+        NULL, HFILL }
+    },
+  };
+
+/* Setup protocol subtree array */
+  static gint *ett[] = {
+    &ett_clique_rm,
+    &ett_clique_rm_depends,
+    &ett_clique_rm_depends_item,
+    &ett_clique_rm_data,
+    &ett_clique_rm_failures,
+    &ett_clique_rm_join_failures,
+    &ett_clique_rm_attempt_join,
+    &ett_clique_rm_join,
+  };
+
+/* Register the protocol name and description */
+  proto_clique_rm = proto_register_protocol("Clique Reliable Multicast Protocol", "Clique-rm", "clique-rm");
+
+/* Required function calls to register the header fields and subtrees used */
+  proto_register_field_array(proto_clique_rm, hf, array_length(hf));
+  proto_register_subtree_array(ett, array_length(ett));
+
+}
+
+void
+proto_reg_handoff_clique_rm(void)
+{
+  heur_dissector_add("udp", dissect_clique_rm, "Clique RM over UDP", "clique_rm_udp", proto_clique_rm, HEURISTIC_ENABLE);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local Variables:
+ * c-basic-offset: 2
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set shiftwidth=2 tabstop=8 expandtab:
+ * :indentSize=2:tabSize=8:noTabs=true:
+ */