Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 265 insertions, 0 deletions

diff --git a/epan/dissectors/packet-lanforge.c b/epan/dissectors/packet-lanforge.c
new file mode 100644
index 00000000..a90f8a88
--- /dev/null
+++ b/epan/dissectors/packet-lanforge.c
@@ -0,0 +1,265 @@
+/* packet-lanforge.c
+ * Routines for "LANforge traffic generator IP protocol" dissection
+ * Copyright 2008
+ * Ben Greear <greearb@candelatech.com>
+ *
+ * Based on pktgen dissectory by:
+ * Francesco Fondelli <francesco dot fondelli, gmail dot com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+/* LANforge generates network traffic for load & performance testing.
+ * See http://www.candelatech.com for more info.
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+
+void proto_register_lanforge(void);
+void proto_reg_handoff_lanforge(void);
+
+/* magic num used for heuristic */
+#define LANFORGE_MAGIC 0x1a2b3c4d
+
+/* Initialize the protocol and registered fields */
+static int proto_lanforge = -1;
+
+/* lanforge header */
+static int hf_lanforge_crc = -1;
+static int hf_lanforge_magic = -1;
+static int hf_lanforge_src_session = -1;
+static int hf_lanforge_dst_session = -1;
+static int hf_lanforge_pld_len_l = -1;
+static int hf_lanforge_pld_len_h = -1;
+static int hf_lanforge_pld_len = -1;
+static int hf_lanforge_pld_pattern = -1;
+static int hf_lanforge_seq = -1;
+static int hf_lanforge_tx_time_s = -1;
+static int hf_lanforge_tx_time_ns = -1;
+static int hf_lanforge_timestamp = -1;
+
+/* Initialize the subtree pointer */
+static gint ett_lanforge = -1;
+
+/* entry point */
+static gboolean dissect_lanforge(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+    proto_item *ti;
+    proto_tree *lanforge_tree;
+    guint32 offset = 0;
+    guint32 magic, pld_len, pld_len_h;
+
+    /* check for min size */
+    if(tvb_captured_length(tvb) < 28) {  /* Not a LANforge packet. */
+        return FALSE;
+    }
+
+    /* check for magic number */
+    magic = tvb_get_ntohl(tvb, 4);
+    if(magic != LANFORGE_MAGIC){
+        /* Not a LANforge packet. */
+        return FALSE;
+    }
+
+    /* Make entries in Protocol column and Info column on summary display */
+
+    col_set_str(pinfo->cinfo, COL_PROTOCOL, "LANforge");
+
+    col_add_fstr(pinfo->cinfo, COL_INFO, "Seq: %u", tvb_get_ntohl(tvb, 16));
+
+    /* create display subtree for the protocol */
+
+    ti = proto_tree_add_item(tree, proto_lanforge, tvb, 0, -1, ENC_NA);
+
+    lanforge_tree = proto_item_add_subtree(ti, ett_lanforge);
+
+    /* add items to the subtree */
+
+    proto_tree_add_item(lanforge_tree, hf_lanforge_crc, tvb, offset, 4, ENC_BIG_ENDIAN);
+    offset+=4;
+
+    proto_tree_add_item(lanforge_tree, hf_lanforge_magic, tvb, offset, 4, ENC_BIG_ENDIAN);
+    offset+=4;
+
+    proto_tree_add_item(lanforge_tree, hf_lanforge_src_session, tvb, offset, 2, ENC_BIG_ENDIAN);
+    offset+=2;
+
+    proto_tree_add_item(lanforge_tree, hf_lanforge_dst_session, tvb, offset, 2, ENC_BIG_ENDIAN);
+    offset+=2;
+
+    proto_tree_add_item_ret_uint(lanforge_tree, hf_lanforge_pld_len_l,
+            tvb, offset, 2, ENC_BIG_ENDIAN, &pld_len);
+    offset+=2;
+    proto_tree_add_item_ret_uint(lanforge_tree, hf_lanforge_pld_len_h,
+            tvb, offset, 1, ENC_BIG_ENDIAN, &pld_len_h);
+    offset+=1;
+    pld_len |= (pld_len_h << 16);
+    proto_tree_add_uint(lanforge_tree, hf_lanforge_pld_len, tvb, offset-3, 3, pld_len);
+
+    proto_tree_add_item(lanforge_tree, hf_lanforge_pld_pattern, tvb, offset, 1, ENC_BIG_ENDIAN);
+    offset+=1;
+
+    proto_tree_add_item(lanforge_tree, hf_lanforge_seq, tvb, offset, 4, ENC_BIG_ENDIAN);
+    offset+=4;
+
+    proto_tree_add_item(lanforge_tree, hf_lanforge_tx_time_s, tvb, offset, 4, ENC_BIG_ENDIAN);
+    offset+=4;
+    proto_tree_add_item(lanforge_tree, hf_lanforge_tx_time_ns, tvb, offset, 4, ENC_BIG_ENDIAN);
+    offset+=4;
+    proto_tree_add_item(lanforge_tree, hf_lanforge_timestamp,
+            tvb, offset - 8, 8, ENC_TIME_SECS_NSECS|ENC_BIG_ENDIAN);
+
+    if(tvb_reported_length_remaining(tvb, offset) > 0) /* random data */
+        call_data_dissector(tvb_new_subset_remaining(tvb, offset), pinfo,
+                lanforge_tree);
+
+    return TRUE;
+}
+
+
+/* Register the protocol with Wireshark */
+void proto_register_lanforge(void)
+{
+    /* Setup list of header fields */
+
+    static hf_register_info hf[] = {
+
+        { &hf_lanforge_crc,
+          {
+              "CRC", "lanforge.CRC",
+              FT_UINT32, BASE_HEX, NULL, 0x0,
+              "The LANforge CRC number", HFILL
+          }
+        },
+
+        { &hf_lanforge_magic,
+          {
+              "Magic number", "lanforge.magic",
+              FT_UINT32, BASE_HEX, NULL, 0x0,
+              "The LANforge magic number", HFILL
+          }
+        },
+
+        { &hf_lanforge_src_session,
+          {
+              "Source session ID", "lanforge.source-session-id",
+              FT_UINT16, BASE_DEC, NULL, 0x0,
+              "The LANforge source session ID", HFILL
+          }
+        },
+
+        { &hf_lanforge_dst_session,
+          {
+              "Dest session ID", "lanforge.dest-session-id",
+              FT_UINT16, BASE_DEC, NULL, 0x0,
+              "The LANforge dest session ID", HFILL
+          }
+        },
+
+        { &hf_lanforge_pld_len_l,
+          {
+              "Payload Length(L)", "lanforge.pld-len-L",
+              FT_UINT16, BASE_DEC, NULL, 0x0,
+              "The LANforge payload length (low bytes)", HFILL
+          }
+        },
+
+        { &hf_lanforge_pld_len_h,
+          {
+              "Payload Length(H)", "lanforge.pld-len-H",
+              FT_UINT8, BASE_DEC, NULL, 0x0,
+              "The LANforge payload length (high byte)", HFILL
+          }
+        },
+
+        { &hf_lanforge_pld_len,
+          {
+              "Payload Length", "lanforge.pld-length",
+              FT_UINT32, BASE_DEC, NULL, 0x0,
+              "The LANforge payload length", HFILL
+          }
+        },
+
+        { &hf_lanforge_pld_pattern,
+          {
+              "Payload Pattern", "lanforge.pld-pattern",
+              FT_UINT16, BASE_DEC, NULL, 0x0,
+              "The LANforge payload pattern", HFILL
+          }
+        },
+
+        { &hf_lanforge_seq,
+          {
+              "Sequence Number", "lanforge.seqno",
+              FT_UINT32, BASE_DEC, NULL, 0x0,
+              "The LANforge Sequence Number", HFILL
+          }
+        },
+
+        { &hf_lanforge_tx_time_s,
+          {
+              "Timestamp Secs", "lanforge.ts-secs",
+              FT_UINT32, BASE_DEC, NULL, 0x0,
+              NULL, HFILL
+          }
+        },
+
+        { &hf_lanforge_tx_time_ns,
+          {
+              "Timestamp nsecs", "lanforge.ts-nsecs",
+              FT_UINT32, BASE_DEC, NULL, 0x0,
+              NULL, HFILL
+          }
+        },
+
+        { &hf_lanforge_timestamp,
+          {
+              "Timestamp", "lanforge.timestamp",
+              FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0,
+              NULL, HFILL
+          }
+        }
+    };
+
+    /* Setup protocol subtree array */
+
+    static gint *ett[] = {
+        &ett_lanforge
+    };
+
+    /* Register the protocol name and description */
+
+    proto_lanforge = proto_register_protocol("LANforge Traffic Generator", "LANforge", "lanforge");
+
+    /* Required function calls to register the header fields and subtrees used */
+
+    proto_register_field_array(proto_lanforge, hf, array_length(hf));
+    proto_register_subtree_array(ett, array_length(ett));
+}
+
+
+void proto_reg_handoff_lanforge(void)
+{
+    /* Register as a heuristic UDP dissector */
+    heur_dissector_add("udp", dissect_lanforge, "LANforge over UDP", "lanforge_udp", proto_lanforge, HEURISTIC_ENABLE);
+    heur_dissector_add("tcp", dissect_lanforge, "LANforge over TCP", "lanforge_tcp", proto_lanforge, HEURISTIC_ENABLE);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */