forked from osmocom/wireshark
![Michael Mann](/assets/img/avatar_default.png)
Similar to the "tcp.port" changes in I99604f95d426ad345f4b494598d94178b886eb67, convert dissectors that use "udp.port". More cleanup done on dissectors that use both TCP and UDP dissector tables, so that less preference callbacks exist. Change-Id: If07be9b9e850c244336a7069599cd554ce312dd3 Reviewed-on: https://code.wireshark.org/review/18120 Petri-Dish: Michael Mann <mmann78@netscape.net> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michael Mann <mmann78@netscape.net>
195 lines
5.8 KiB
C
195 lines
5.8 KiB
C
/* packet-bjnp.c
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* Routines for Canon BJNP packet disassembly.
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*
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* Copyright 2009, Stig Bjorlykke <stig@bjorlykke.org>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#define PNAME "Canon BJNP"
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#define PSNAME "BJNP"
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#define PFNAME "bjnp"
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#define BJNP_PORT_RANGE "8611-8614"
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/* dev_type */
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#define PRINTER_COMMAND 0x01
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#define SCANNER_COMMAND 0x02
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#define PRINTER_RESPONSE 0x81
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#define SCANNER_RESPONSE 0x82
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/* cmd_code */
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#define CMD_DISCOVER 0x01
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#define CMD_PRINT_JOB_DET 0x10
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#define CMD_CLOSE 0x11
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#define CMD_GET_STATUS 0x20
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#define CMD_PRINT 0x21
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#define CMD_GET_ID 0x30
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#define CMD_SCAN_JOB 0x32
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void proto_register_bjnp(void);
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void proto_reg_handoff_bjnp(void);
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static int proto_bjnp = -1;
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static int hf_bjnp_id = -1;
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static int hf_dev_type = -1;
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static int hf_cmd_code = -1;
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static int hf_seq_no = -1;
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static int hf_session_id = -1;
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static int hf_payload_len = -1;
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static int hf_payload = -1;
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static gint ett_bjnp = -1;
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static dissector_handle_t bjnp_handle;
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static const value_string dev_type_vals[] = {
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{ PRINTER_COMMAND, "Printer Command" },
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{ SCANNER_COMMAND, "Scanner Command" },
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{ PRINTER_RESPONSE, "Printer Response" },
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{ SCANNER_RESPONSE, "Scanner Response" },
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{ 0, NULL }
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};
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static const value_string cmd_code_vals[] = {
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{ CMD_DISCOVER, "Discover" },
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{ CMD_PRINT_JOB_DET, "Print Job Details" },
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{ CMD_CLOSE, "Request Closure" },
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{ CMD_GET_STATUS, "Get Printer Status" },
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{ CMD_PRINT, "Print" },
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{ CMD_GET_ID, "Get Printer Identity" },
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{ CMD_SCAN_JOB, "Scan Job Details" },
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{ 0, NULL }
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};
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static int dissect_bjnp (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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proto_tree *bjnp_tree;
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proto_item *ti;
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gint offset = 0;
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guint32 payload_len;
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guint8 dev_type, cmd_code;
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gchar *info;
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/* If it does not start with a printable character it's not BJNP */
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if(!g_ascii_isprint(tvb_get_guint8(tvb, 0)))
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return 0;
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col_set_str (pinfo->cinfo, COL_PROTOCOL, PSNAME);
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col_clear (pinfo->cinfo, COL_INFO);
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ti = proto_tree_add_item (tree, proto_bjnp, tvb, offset, -1, ENC_NA);
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bjnp_tree = proto_item_add_subtree (ti, ett_bjnp);
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proto_tree_add_item (bjnp_tree, hf_bjnp_id, tvb, offset, 4, ENC_ASCII|ENC_NA);
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offset += 4;
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dev_type = tvb_get_guint8 (tvb, offset);
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proto_tree_add_item (bjnp_tree, hf_dev_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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cmd_code = tvb_get_guint8 (tvb, offset);
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proto_tree_add_item (bjnp_tree, hf_cmd_code, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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info = wmem_strdup_printf(wmem_packet_scope(), "%s: %s",
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val_to_str (dev_type, dev_type_vals, "Unknown type (%d)"),
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val_to_str (cmd_code, cmd_code_vals, "Unknown code (%d)"));
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proto_item_append_text (ti, ", %s", info);
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col_add_str (pinfo->cinfo, COL_INFO, info);
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proto_tree_add_item (bjnp_tree, hf_seq_no, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item (bjnp_tree, hf_session_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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payload_len = tvb_get_ntohl (tvb, offset);
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proto_tree_add_item (bjnp_tree, hf_payload_len, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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if (payload_len > 0) {
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/* TBD: Dissect various commands */
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proto_tree_add_item (bjnp_tree, hf_payload, tvb, offset, payload_len, ENC_NA);
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offset += payload_len;
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}
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return offset;
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}
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void proto_register_bjnp (void)
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{
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static hf_register_info hf[] = {
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{ &hf_bjnp_id,
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{ "Id", "bjnp.id", FT_STRING, BASE_NONE,
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NULL, 0x0, NULL, HFILL } },
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{ &hf_dev_type,
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{ "Type", "bjnp.type", FT_UINT8, BASE_DEC,
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VALS(dev_type_vals), 0x0, NULL, HFILL } },
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{ &hf_cmd_code,
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{ "Code", "bjnp.code", FT_UINT8, BASE_DEC,
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VALS(cmd_code_vals), 0x0, NULL, HFILL } },
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{ &hf_seq_no,
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{ "Sequence Number", "bjnp.seq_no", FT_UINT32, BASE_DEC,
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NULL, 0x0, NULL, HFILL } },
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{ &hf_session_id,
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{ "Session Id", "bjnp.session_id", FT_UINT16, BASE_DEC,
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NULL, 0x0, NULL, HFILL } },
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{ &hf_payload_len,
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{ "Payload Length", "bjnp.payload_len", FT_UINT32, BASE_DEC,
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NULL, 0x0, NULL, HFILL } },
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{ &hf_payload,
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{ "Payload", "bjnp.payload", FT_BYTES, BASE_NONE,
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NULL, 0x0, NULL, HFILL } },
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};
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static gint *ett[] = {
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&ett_bjnp
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};
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proto_bjnp = proto_register_protocol (PNAME, PSNAME, PFNAME);
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bjnp_handle = register_dissector (PFNAME, dissect_bjnp, proto_bjnp);
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proto_register_field_array (proto_bjnp, hf, array_length (hf));
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proto_register_subtree_array (ett, array_length (ett));
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}
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void proto_reg_handoff_bjnp (void)
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{
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dissector_add_uint_range_with_preference("udp.port", BJNP_PORT_RANGE, bjnp_handle);
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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