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-rw-r--r--epan/dissectors/packet-hyperscsi.c223
1 files changed, 223 insertions, 0 deletions
diff --git a/epan/dissectors/packet-hyperscsi.c b/epan/dissectors/packet-hyperscsi.c
new file mode 100644
index 0000000000..f4ed93349a
--- /dev/null
+++ b/epan/dissectors/packet-hyperscsi.c
@@ -0,0 +1,223 @@
+/* packet-ip.c
+ * Routines for dissassembly of the Hyper SCSI protocol.
+ *
+ * $Id$
+ *
+ * Ethereal - Network traffic analyzer
+ * By Gerald Combs <gerald@ethereal.com>
+ * Copyright 1998 Gerald Combs
+ * Copyright 2002 Richard Sharpe <rsharpe@richardsharpe.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <glib.h>
+
+#ifdef NEED_SNPRINTF_H
+# include "snprintf.h"
+#endif
+
+#include <epan/packet.h>
+
+static int proto_hyperscsi;
+
+static int hf_hs_cmd = -1;
+static int hf_hs_ver = -1;
+static int hf_hs_res = -1;
+static int hf_hs_tagno = -1;
+static int hf_hs_lastfrag = -1;
+static int hf_hs_fragno = -1;
+
+static gint ett_hyperscsi = -1;
+static gint ett_hs_hdr = -1;
+static gint ett_hs_pdu = -1;
+
+static const true_false_string tfs_lastfrag = {
+ "Last Fragment",
+ "Not Last Fragment"
+};
+
+#define HSCSI_OPCODE_REQUEST 0x00
+#define HSCSI_OPCODE_REPLY 0x01
+#define HSCSI_OPCODE_DEV_DISCOVERY 0x10
+#define HSCSI_OPCODE_ADN_REQUEST 0x11
+#define HSCSI_OPCODE_ADN_REPLY 0x12
+#define HSCSI_OPCODE_DISCONNECT 0x13
+#define HSCSI_OPCODE_ACK_SNR 0x20
+#define HSCSI_OPCODE_ACK_REPLY 0x21
+#define HSCSI_OPCODE_ADDR_REPORT 0x30
+#define HSCSI_OPCODE_ADDR_REPLY 0x31
+#define HSCSI_OPCODE_LOCAL_REQUEST 0x32
+#define HSCSI_OPCODE_LOCAL_REPLY 0x33
+#define HSCSI_OPCODE_REMOTE_REQUEST 0x34
+#define HSCSI_OPCODE_REMOTE_REPLY 0x35
+
+static const value_string hscsi_opcodes[] = {
+ { HSCSI_OPCODE_REQUEST, "Command Block Encap Request"},
+ { HSCSI_OPCODE_REPLY, "Command Block Encap Reply"},
+ { HSCSI_OPCODE_DEV_DISCOVERY, "Device Discovery Reply"},
+ { HSCSI_OPCODE_ADN_REQUEST, "Auth/Device Neg Request"},
+ { HSCSI_OPCODE_ADN_REPLY, "Auth/Device Neg Reply"},
+ { HSCSI_OPCODE_DISCONNECT, "Disconnect Request"},
+ { HSCSI_OPCODE_ACK_SNR, "Flow Control Setup/Ack Request"},
+ { HSCSI_OPCODE_ACK_REPLY, "Flow Control Ack Reply"},
+ { 0, NULL}
+};
+
+#define OPCODE_MASK 0x7F
+
+static void
+dissect_hyperscsi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
+{
+ guint hs_hdr1, hs_hdr2, hs_hdr3;
+ guint8 hs_res;
+ guint16 hs_tagno;
+ guint16 hs_fragno;
+ gint offset = 0;
+ proto_tree *hs_hdr_tree, *hs_pdu_tree;
+ proto_tree *hs_tree = NULL;
+ proto_item *ti;
+ guint8 hs_cmd, hs_ver;
+ char *opcode_str;
+
+ if (check_col(pinfo->cinfo, COL_PROTOCOL))
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "HYPERSCSI");
+ if (check_col(pinfo->cinfo, COL_INFO))
+ col_clear(pinfo->cinfo, COL_INFO);
+
+ if (tree) {
+ ti = proto_tree_add_item(tree, proto_hyperscsi, tvb, offset, -1, FALSE);
+ hs_tree = proto_item_add_subtree(ti, ett_hyperscsi);
+ }
+
+ hs_hdr1 = tvb_get_guint8(tvb, offset);
+ offset++;
+ hs_hdr2 = tvb_get_guint8(tvb, offset);
+ offset++;
+ hs_hdr3 = tvb_get_guint8(tvb, offset);
+ offset++;
+
+ hs_res = hs_hdr1 >> 4;
+ hs_tagno = ((hs_hdr1 & 0x0F) << 5 ) | (hs_hdr2 >> 3);
+ hs_fragno = ((hs_hdr2 &0X03) << 8 ) | hs_hdr3;
+
+ /*
+ * Add the header ... three bytes
+ */
+
+ if (tree) {
+ ti = proto_tree_add_text(hs_tree, tvb, 0, 3, "HyperSCSI Header");
+ hs_hdr_tree = proto_item_add_subtree(ti, ett_hs_hdr);
+
+ /*
+ * Now, add the header items
+ */
+
+ proto_tree_add_uint(hs_hdr_tree, hf_hs_res, tvb, 0, 1, hs_res);
+ proto_tree_add_uint(hs_hdr_tree, hf_hs_tagno, tvb, 0, 2, hs_tagno);
+ proto_tree_add_item(hs_hdr_tree, hf_hs_lastfrag, tvb, 1, 1, FALSE);
+ proto_tree_add_uint(hs_hdr_tree, hf_hs_fragno, tvb, 1, 2, hs_fragno);
+
+ }
+
+ /*
+ * Now, add the PDU
+ */
+
+ hs_ver = tvb_get_guint8(tvb, offset++);
+
+ hs_cmd = tvb_get_guint8(tvb, offset++);
+
+ hs_cmd &= OPCODE_MASK;
+
+ opcode_str = match_strval(hs_cmd, hscsi_opcodes);
+
+ if (!opcode_str)
+ opcode_str = "Unknown HyperSCSI Request or Response";
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_append_str(pinfo->cinfo, COL_INFO, (char *)opcode_str);
+ }
+
+ if (tree) {
+ ti = proto_tree_add_text(hs_tree, tvb, 3, -1, "HyperSCSI PDU");
+ hs_pdu_tree = proto_item_add_subtree(ti, ett_hs_pdu);
+
+ proto_tree_add_uint(hs_pdu_tree, hf_hs_ver, tvb, 3, 1, hs_ver);
+
+ proto_tree_add_uint_format(hs_pdu_tree, hf_hs_cmd, tvb, 4, 1, hs_cmd, "HyperSCSI Command: %s", opcode_str);
+ }
+
+}
+
+void
+proto_register_hyperscsi(void)
+{
+
+ static hf_register_info hf[] = {
+ { &hf_hs_res,
+ { "Reserved", "hyperscsi.reserved", FT_UINT8, BASE_DEC, NULL, 0x0,
+ "", HFILL}},
+
+ { &hf_hs_tagno,
+ { "Tag No", "hyperscsi.tagno", FT_UINT16, BASE_DEC, NULL, 0x0,
+ "", HFILL }},
+
+ { &hf_hs_lastfrag,
+ { "Last Fragment", "hyperscsi.lastfrag", FT_BOOLEAN, 8, TFS(&tfs_lastfrag), 0x04, "", HFILL}},
+
+ { &hf_hs_fragno,
+ { "Fragment No", "hyperscsi.fragno", FT_UINT16, BASE_DEC, NULL, 0x0,
+ "", HFILL}},
+
+ { &hf_hs_ver,
+ { "HyperSCSI Version", "hyperscsi.version", FT_UINT8, BASE_DEC, NULL,
+ 0x0, "", HFILL}},
+
+ { &hf_hs_cmd,
+ { "HyperSCSI Command", "hyperscsi.cmd", FT_UINT8, BASE_DEC, NULL, 0x0,
+ "", HFILL}},
+ };
+
+ static gint *ett[] = {
+ &ett_hyperscsi,
+ &ett_hs_hdr,
+ &ett_hs_pdu,
+ };
+
+ proto_hyperscsi = proto_register_protocol("HyperSCSI", "HyperSCSI", "hyperscsi");
+ proto_register_field_array(proto_hyperscsi, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+
+ register_dissector("hyperscsi", dissect_hyperscsi, proto_hyperscsi);
+}
+
+#define ETHERTYPE_HYPERSCSI 0x889A
+
+void
+proto_reg_handoff_hyperscsi(void)
+{
+ dissector_handle_t hs_handle;
+
+ hs_handle = find_dissector("hyperscsi");
+ dissector_add("ethertype", ETHERTYPE_HYPERSCSI, hs_handle);
+
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 02:40:41 +0000