Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 601 insertions, 0 deletions

diff --git a/epan/dissectors/packet-reload-framing.c b/epan/dissectors/packet-reload-framing.c
new file mode 100644
index 00000000..eac1744c
--- /dev/null
+++ b/epan/dissectors/packet-reload-framing.c
@@ -0,0 +1,601 @@
+/* packet-reload-framing.c
+ * Routines for REsource LOcation And Discovery (RELOAD) Framing
+ * Author: Stephane Bryant <sbryant@glycon.org>
+ * Copyright 2010 Stonyfish Inc.
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Please refer to the following specs for protocol detail:
+ * - draft-ietf-p2psip-base-15
+ * - RFC 6940 (does this incorporate all changes between
+ *   draft-ietf-p2psip-base-15 and RFC 6940, if any?)
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/expert.h>
+#include <epan/tap.h>
+#include <epan/exported_pdu.h>
+#include "packet-tcp.h"
+
+void proto_register_reload_framing(void);
+void proto_reg_handoff_reload_framing(void);
+
+/* Initialize the protocol and registered fields */
+static int proto_reload_framing = -1;
+
+static int hf_reload_framing_type = -1;
+static int hf_reload_framing_sequence = -1;
+static int hf_reload_framing_ack_sequence = -1;
+static int hf_reload_framing_message = -1;
+static int hf_reload_framing_message_length = -1;
+static int hf_reload_framing_message_data = -1;
+static int hf_reload_framing_received = -1;
+static int hf_reload_framing_parsed_received = -1;
+static int hf_reload_framing_duplicate = -1;
+static int hf_reload_framing_response_in = -1;
+static int hf_reload_framing_response_to = -1;
+static int hf_reload_framing_time = -1;
+
+static dissector_handle_t reload_handle;
+static dissector_handle_t reload_framing_tcp_handle;
+static dissector_handle_t reload_framing_udp_handle;
+
+static gint exported_pdu_tap = -1;
+
+/* Structure containing transaction specific information */
+typedef struct _reload_frame_t {
+  guint32  data_frame;
+  guint32  ack_frame;
+  nstime_t req_time;
+} reload_frame_t;
+
+/* Structure containing conversation specific information */
+typedef struct _reload_frame_conv_info_t {
+  wmem_tree_t *transaction_pdus;
+} reload_conv_info_t;
+
+
+/* RELOAD Message classes = (message_code & 0x1) (response = request +1) */
+#define DATA            128
+#define ACK             129
+
+
+/* Initialize the subtree pointers */
+static gint ett_reload_framing = -1;
+static gint ett_reload_framing_message = -1;
+static gint ett_reload_framing_received = -1;
+
+static expert_field ei_reload_no_dissector = EI_INIT;
+
+#define UDP_PORT_RELOAD                 6084
+#define TCP_PORT_RELOAD                 6084
+
+#define MIN_HDR_LENGTH                             9
+#define MIN_RELOADDATA_HDR_LENGTH                  38
+
+#define RELOAD_TOKEN                    0xd2454c4f
+
+static const value_string types[] = {
+  {DATA, "DATA"},
+  {ACK,  "ACK"},
+  {0x00, NULL}
+};
+
+static guint
+get_reload_framing_message_length(packet_info *pinfo _U_, tvbuff_t *tvb,
+                                  int offset, void *data _U_)
+{
+  /* Get the type */
+  guint32 length = 9;
+
+
+  if (tvb_get_guint8(tvb, offset) == DATA) {
+    length = 1 + 4 + 3 + tvb_get_ntoh24(tvb, 1 + 4);
+  }
+
+  return length;
+}
+
+
+static int
+dissect_reload_framing_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gboolean from_dtls)
+{
+  proto_item         *ti;
+  proto_tree         *reload_framing_tree;
+  guint32             relo_token;
+  guint32             message_length = 0;
+  wmem_tree_key_t     transaction_id_key[4];
+  guint32            *key_save, len_save;
+  guint32             sequence;
+  guint               effective_length;
+  guint16             offset;
+  conversation_t     *conversation;
+  reload_conv_info_t *reload_framing_info = NULL;
+  reload_frame_t *    reload_frame;
+  guint8              type;
+
+  offset = 0;
+  effective_length = tvb_captured_length(tvb);
+
+  /* First, make sure we have enough data to do the check. */
+  if (effective_length < MIN_HDR_LENGTH)
+    return 0;
+
+  conversation = find_conversation_pinfo(pinfo, 0);
+  if (conversation)
+    reload_framing_info = (reload_conv_info_t *)conversation_get_proto_data(conversation, proto_reload_framing);
+
+  /* Get the type
+   * https://tools.ietf.org/html/draft-ietf-p2psip-base-12
+   * 5.6.2.  Framing Header
+   */
+  type = tvb_get_guint8(tvb, 0);
+
+  switch(type) {
+  case DATA:
+    /* in the data type, check the reload token to be sure this
+    *  is a reLoad packet
+    */
+    if (effective_length < 12)  /* [type + seq + length + token] */
+      return 0;
+
+    relo_token = tvb_get_ntohl(tvb,1 + 4 + 3);
+    if (relo_token != RELOAD_TOKEN) {
+      return 0;
+    }
+    message_length = tvb_get_ntoh24(tvb, 1 + 4);
+    if (message_length < MIN_RELOADDATA_HDR_LENGTH) {
+      return 0;
+    }
+    break;
+  case ACK:
+    /* Require previous ACK (i.e., reload_framing_info attached to conversation). */
+    if (effective_length < 9 || ! reload_framing_info) {
+      return 0;
+    }
+    break;
+  default:
+    return 0;
+  }
+
+  if (from_dtls && have_tap_listener(exported_pdu_tap)) {
+    exp_pdu_data_t *exp_pdu_data = export_pdu_create_common_tags(pinfo, "reload-framing", EXP_PDU_TAG_DISSECTOR_NAME);
+
+    exp_pdu_data->tvb_captured_length = effective_length;
+    exp_pdu_data->tvb_reported_length = tvb_reported_length(tvb);
+    exp_pdu_data->pdu_tvb = tvb;
+
+    tap_queue_packet(exported_pdu_tap, pinfo, exp_pdu_data);
+  }
+
+  /* The message seems to be a valid RELOAD framing message! */
+
+  col_set_str(pinfo->cinfo, COL_PROTOCOL, "RELOAD Frame");
+  col_clear(pinfo->cinfo, COL_INFO);
+
+  /* Create the transaction key which may be used to track the conversation */
+
+  sequence = tvb_get_ntohl(tvb, 1);
+  transaction_id_key[0].length = 1;
+  transaction_id_key[0].key = &sequence; /* sequence number */
+
+  /* When the wmem_tree_* functions iterate through the keys, they
+   * perform pointer arithmetic with guint32s, so we have to divide
+   * our length fields by that to make things work, but we still want
+   * to g_malloc and memcpy the entire amounts, since those both operate
+   * in raw bytes. */
+  if (type==DATA) {
+    transaction_id_key[1].length = 1;
+    transaction_id_key[1].key    = &pinfo->srcport;
+    transaction_id_key[2].length = (pinfo->src.len) / (guint)sizeof(guint32);
+    transaction_id_key[2].key    = (guint32 *)g_malloc(pinfo->src.len);
+    memcpy(transaction_id_key[2].key, pinfo->src.data, pinfo->src.len);
+  }
+  else {
+    transaction_id_key[1].length = 1;
+    transaction_id_key[1].key    = &pinfo->destport;
+    transaction_id_key[2].length = (pinfo->dst.len) / (guint)sizeof(guint32);
+    transaction_id_key[2].key    = (guint32 *)g_malloc(pinfo->dst.len);
+    memcpy(transaction_id_key[2].key, pinfo->dst.data, pinfo->dst.len);
+  }
+  transaction_id_key[3].length=0;
+  transaction_id_key[3].key=NULL;
+  /* The tree functions are destructive to this part of the key, so save the
+   * proper values here and restore them after each call. */
+  key_save = transaction_id_key[2].key;
+  len_save = transaction_id_key[2].length;
+
+  if (!conversation) {
+    conversation = conversation_new(pinfo->num, &pinfo->src, &pinfo->dst,
+                                    conversation_pt_to_conversation_type(pinfo->ptype), pinfo->srcport, pinfo->destport, 0);
+  }
+
+  /*
+   * Do we already have a state structure for this conv
+   */
+  if (!reload_framing_info) {
+    /* No.  Attach that information to the conversation, and add
+     * it to the list of information structures.
+     */
+    reload_framing_info = wmem_new(wmem_file_scope(), reload_conv_info_t);
+    reload_framing_info->transaction_pdus = wmem_tree_new(wmem_file_scope());
+    conversation_add_proto_data(conversation, proto_reload_framing, reload_framing_info);
+  }
+
+  if (!pinfo->fd->visited) {
+    if ((reload_frame = (reload_frame_t *)
+           wmem_tree_lookup32_array(reload_framing_info->transaction_pdus, transaction_id_key)) == NULL) {
+      transaction_id_key[2].key    = key_save;
+      transaction_id_key[2].length = len_save;
+      reload_frame = wmem_new(wmem_file_scope(), reload_frame_t);
+      reload_frame->data_frame = 0;
+      reload_frame->ack_frame  = 0;
+      reload_frame->req_time   = pinfo->abs_ts;
+      wmem_tree_insert32_array(reload_framing_info->transaction_pdus, transaction_id_key, (void *)reload_frame);
+    }
+    transaction_id_key[2].key    = key_save;
+    transaction_id_key[2].length = len_save;
+
+    /* check whether the message is a request or a response */
+
+    if (type == DATA) {
+      /* This is a data */
+      if (reload_frame->data_frame == 0) {
+        reload_frame->data_frame = pinfo->num;
+      }
+    }
+    else {
+      /* This is a catch-all for all non-request messages */
+      if (reload_frame->ack_frame == 0) {
+        reload_frame->ack_frame = pinfo->num;
+      }
+    }
+  }
+  else {
+    reload_frame=(reload_frame_t *)wmem_tree_lookup32_array(reload_framing_info->transaction_pdus, transaction_id_key);
+    transaction_id_key[2].key    = key_save;
+    transaction_id_key[2].length = len_save;
+  }
+  g_free(transaction_id_key[2].key);
+
+  if (!reload_frame) {
+    /* create a "fake" pana_trans structure */
+    reload_frame = wmem_new(pinfo->pool, reload_frame_t);
+    reload_frame->data_frame = (type==DATA) ? pinfo->num : 0;
+    reload_frame->ack_frame  = (type!=DATA) ? pinfo->num : 0;
+    reload_frame->req_time   = pinfo->abs_ts;
+  }
+
+  ti = proto_tree_add_item(tree, proto_reload_framing, tvb, 0, -1, ENC_NA);
+
+  reload_framing_tree = proto_item_add_subtree(ti, ett_reload_framing);
+
+  col_add_str(pinfo->cinfo, COL_INFO, val_to_str_const(type, types, "Unknown"));
+  proto_item_append_text(ti, ": %s", val_to_str_const(type, types, "Unknown"));
+
+  /* Retransmission control */
+  if (type == DATA) {
+    if (reload_frame->data_frame != pinfo->num) {
+      proto_item *it;
+      it = proto_tree_add_uint(reload_framing_tree, hf_reload_framing_duplicate, tvb, 0, 0, reload_frame->data_frame);
+      proto_item_set_generated(it);
+    }
+    if (reload_frame->ack_frame) {
+      proto_item *it;
+      it = proto_tree_add_uint(reload_framing_tree, hf_reload_framing_response_in, tvb, 0, 0, reload_frame->ack_frame);
+      proto_item_set_generated(it);
+    }
+  }
+  else {
+    /* This is a response */
+    if (reload_frame->ack_frame != pinfo->num) {
+      proto_item *it;
+      it = proto_tree_add_uint(reload_framing_tree, hf_reload_framing_duplicate, tvb, 0, 0, reload_frame->ack_frame);
+      proto_item_set_generated(it);
+    }
+
+    if (reload_frame->data_frame) {
+      proto_item *it;
+      nstime_t    ns;
+
+      it = proto_tree_add_uint(reload_framing_tree, hf_reload_framing_response_to, tvb, 0, 0, reload_frame->data_frame);
+      proto_item_set_generated(it);
+
+      nstime_delta(&ns, &pinfo->abs_ts, &reload_frame->req_time);
+      it = proto_tree_add_time(reload_framing_tree, hf_reload_framing_time, tvb, 0, 0, &ns);
+      proto_item_set_generated(it);
+    }
+  }
+
+  /*
+   * Message dissection
+   */
+  proto_tree_add_item(reload_framing_tree, hf_reload_framing_type, tvb, offset , 1, ENC_BIG_ENDIAN);
+  offset += 1;
+  switch (type) {
+
+  case DATA:
+  {
+    tvbuff_t   *next_tvb;
+    proto_item *ti_message;
+    proto_tree *message_tree;
+
+    proto_tree_add_item(reload_framing_tree, hf_reload_framing_sequence, tvb, offset , 4, ENC_BIG_ENDIAN);
+    offset += 4;
+    ti_message = proto_tree_add_item(reload_framing_tree, hf_reload_framing_message, tvb, offset, 3+message_length, ENC_NA);
+    proto_item_append_text(ti_message, " (opaque<%d>)", message_length);
+    message_tree =  proto_item_add_subtree(ti_message, ett_reload_framing_message);
+    proto_tree_add_item(message_tree, hf_reload_framing_message_length, tvb, offset, 3, ENC_BIG_ENDIAN);
+    offset += 3;
+    proto_tree_add_item(message_tree, hf_reload_framing_message_data, tvb, offset, message_length, ENC_NA);
+    next_tvb = tvb_new_subset_length_caplen(tvb, offset, effective_length - offset, message_length);
+    if (reload_handle == NULL) {
+      expert_add_info(pinfo, ti, &ei_reload_no_dissector);
+      return tvb_captured_length(tvb);
+    }
+    call_dissector_only(reload_handle, next_tvb, pinfo, tree, NULL);
+  }
+  break;
+
+  case ACK:
+  {
+    proto_item *ti_received;
+
+    proto_tree_add_uint(reload_framing_tree, hf_reload_framing_ack_sequence, tvb, offset , 4, sequence);
+    offset += 4;
+
+    ti_received = proto_tree_add_item(reload_framing_tree, hf_reload_framing_received, tvb, offset , 4, ENC_BIG_ENDIAN);
+    {
+      guint32     received;
+      int         last_received      = -1;
+      unsigned int         indx      = 0;
+      proto_tree *received_tree;
+      proto_item *ti_parsed_received = NULL;
+
+      received = tvb_get_ntohl(tvb, offset);
+      while ((indx<32) && (received<<indx) != 0) {
+        if (received &(1U<<(31-indx))) {
+          if (indx==0) {
+            received_tree = proto_item_add_subtree(ti_received, ett_reload_framing_received);
+            ti_parsed_received = proto_tree_add_item(received_tree, hf_reload_framing_parsed_received, tvb, offset, 4, ENC_NA);
+            proto_item_append_text(ti_parsed_received, "[%u", (sequence -32+indx));
+            last_received = indx;
+          }
+          else {
+            if (received &(1U<<(31-indx+1))) {
+              indx++;
+              /* the previous one is also acked: in the middle of a range: skip */
+              continue;
+            }
+            else {
+              /* 1st acked in a series */
+              if (last_received<0) {
+                /* 1st acked ever */
+                received_tree = proto_item_add_subtree(ti_received, ett_reload_framing_received);
+                ti_parsed_received = proto_tree_add_item(received_tree, hf_reload_framing_parsed_received, tvb, offset, 4, ENC_NA);
+                proto_item_append_text(ti_parsed_received, "[%u",(sequence-32+indx));
+              }
+              else {
+                proto_item_append_text(ti_parsed_received, ",%u",(sequence-32+indx));
+              }
+              last_received = indx;
+
+            }
+          }
+        }
+        else if (indx>0) {
+          if ((indx>1) && (received &(1U<<(31-indx+1))) && (received &(1U<<(31-indx+2)))) {
+            /* end of a series */
+            if ((indx>2) && (received &(1U<<(31-indx+3)))) {
+              proto_item_append_text(ti_parsed_received,"-%u",(sequence-32+indx-1));
+            }
+            else {
+              /* just a pair */
+              proto_item_append_text(ti_received, ",%u", (sequence-32+indx-1));
+            }
+          }
+          else {
+            indx++;
+            continue;
+          }
+        }
+        indx++;
+      }
+      if (last_received>=0) {
+        if ((indx>1) && (received &(1U<<(31-indx+1)))  && (received &(1U<<(31-indx+2)))) {
+          /* end of a series */
+          if ((indx>2) && (received &(1U<<(31-indx+3)))) {
+            proto_item_append_text(ti_parsed_received,"-%u",(sequence-32+indx-1));
+          }
+          else {
+            /* just a pair */
+            proto_item_append_text(ti_parsed_received, ",%u", (sequence-32+indx-1));
+          }
+        }
+        proto_item_append_text(ti_parsed_received, "]");
+        proto_item_set_generated(ti_parsed_received);
+      }
+    }
+  }
+  break;
+
+  default:
+    DISSECTOR_ASSERT_NOT_REACHED();
+  }
+
+  return tvb_captured_length(tvb);
+}
+
+static int
+dissect_reload_framing(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+  return dissect_reload_framing_message(tvb, pinfo, tree, FALSE);
+}
+
+static int
+dissect_reload_framing_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
+{
+  /* XXX: Check if we have a valid RELOAD Frame Type ? */
+  tcp_dissect_pdus(tvb, pinfo, tree, TRUE, MIN_HDR_LENGTH,
+                   get_reload_framing_message_length, dissect_reload_framing, data);
+  return tvb_captured_length(tvb);
+}
+
+/* ToDo: If a TCP connection is identified heuristically as reload-framing, then
+ *        the code should be such that reload-framing PDUs can be re-assembled (as is
+ *        done for a TCP connection identified as reload-framing because of
+ *        the TCP port used).
+ */
+static gboolean
+dissect_reload_framing_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+  if (dissect_reload_framing_message(tvb, pinfo, tree, FALSE) == 0) {
+    /*
+     * It wasn't a valid RELOAD message, and wasn't
+     * dissected as such.
+     */
+    return FALSE;
+  }
+  return TRUE;
+}
+
+static gboolean
+dissect_reload_framing_heur_dtls(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+  if (dissect_reload_framing_message(tvb, pinfo, tree, TRUE) == 0) {
+    /*
+     * It wasn't a valid RELOAD message, and wasn't
+     * dissected as such.
+     */
+    return FALSE;
+  }
+  return TRUE;
+}
+
+void
+proto_register_reload_framing(void)
+{
+
+  static hf_register_info hf[] = {
+    { &hf_reload_framing_type,
+      { "type (FramedMessageType)", "reload_framing.type", FT_UINT8,
+        BASE_DEC, VALS(types),  0x0,  NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_sequence,
+      { "sequence (uint32)", "reload_framing.sequence", FT_UINT32,
+        BASE_DEC, NULL, 0x0,  NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_ack_sequence,
+      { "ack_sequence (uint32)", "reload_framing.ack_sequence", FT_UINT32,
+        BASE_DEC, NULL, 0x0,  NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_message,
+      { "message", "reload_framing.message", FT_NONE,
+        BASE_NONE, NULL, 0x0,  NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_message_length,
+      { "length (uint24)", "reload_framing.message.length", FT_UINT32,
+        BASE_DEC, NULL, 0x0,  NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_message_data,
+      { "data", "reload_framing.message.data", FT_BYTES,
+        BASE_NONE, NULL, 0x0,  NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_received,
+      { "received (uint32)", "reload_framing.received", FT_UINT32,
+        BASE_HEX, NULL, 0x0,  NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_parsed_received,
+      { "Acked Frames:",  "reload_framing.parsed_received", FT_NONE,
+        BASE_NONE, NULL, 0x0, NULL, HFILL
+      }
+    },
+    { &hf_reload_framing_response_in,
+      { "Response In",  "reload_framing.response-in", FT_FRAMENUM,
+        BASE_NONE, NULL, 0x0, "The response to this RELOAD Request is in this frame", HFILL
+      }
+    },
+    { &hf_reload_framing_response_to,
+      { "Request In", "reload_framing.response-to", FT_FRAMENUM,
+        BASE_NONE, NULL, 0x0, "This is a response to the RELOAD Request in this frame", HFILL
+      }
+    },
+    { &hf_reload_framing_time,
+      { "Time", "reload_framing.time", FT_RELATIVE_TIME,
+        BASE_NONE, NULL, 0x0, "The time between the Request and the Response", HFILL
+      }
+    },
+    { &hf_reload_framing_duplicate,
+      { "Duplicated original message in", "reload_framing.duplicate", FT_FRAMENUM,
+        BASE_NONE, NULL, 0x0, "This is a duplicate of RELOAD message in this frame", HFILL
+      }
+    },
+  };
+
+  /* Setup protocol subtree array */
+  static gint *ett[] = {
+    &ett_reload_framing,
+    &ett_reload_framing_message,
+    &ett_reload_framing_received,
+  };
+
+  static ei_register_info ei[] = {
+     { &ei_reload_no_dissector, { "reload_framing.no_dissector", PI_PROTOCOL, PI_WARN, "Can not find reload dissector", EXPFILL }},
+  };
+
+  expert_module_t* expert_reload_framing;
+
+  /* Register the protocol name and description */
+  proto_reload_framing = proto_register_protocol("REsource LOcation And Discovery Framing", "RELOAD FRAMING", "reload-framing");
+
+  /* Required function calls to register the header fields and subtrees used */
+  proto_register_field_array(proto_reload_framing, hf, array_length(hf));
+  proto_register_subtree_array(ett, array_length(ett));
+  expert_reload_framing = expert_register_protocol(proto_reload_framing);
+  expert_register_field_array(expert_reload_framing, ei, array_length(ei));
+
+  reload_framing_udp_handle = register_dissector("reload-framing", dissect_reload_framing, proto_reload_framing);
+  reload_framing_tcp_handle = register_dissector("reload-framing.tcp", dissect_reload_framing_tcp, proto_reload_framing);
+
+}
+
+void
+proto_reg_handoff_reload_framing(void)
+{
+  reload_handle = find_dissector_add_dependency("reload", proto_reload_framing);
+
+  dissector_add_uint_with_preference("tcp.port", TCP_PORT_RELOAD, reload_framing_tcp_handle);
+  dissector_add_uint_with_preference("udp.port", UDP_PORT_RELOAD, reload_framing_udp_handle);
+
+  heur_dissector_add("udp",  dissect_reload_framing_heur, "RELOAD Framing over UDP", "reload_framing_udp", proto_reload_framing, HEURISTIC_ENABLE);
+  heur_dissector_add("tcp",  dissect_reload_framing_heur, "RELOAD Framing over TCP", "reload_framing_tcp", proto_reload_framing, HEURISTIC_ENABLE);
+  heur_dissector_add("dtls", dissect_reload_framing_heur_dtls, "RELOAD Framing over DTLS", "reload_framing_dtls", proto_reload_framing, HEURISTIC_ENABLE);
+
+  exported_pdu_tap = find_tap_id(EXPORT_PDU_TAP_NAME_LAYER_7);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 2
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=2 tabstop=8 expandtab:
+ * :indentSize=2:tabSize=8:noTabs=true:
+ */