/* isi-nameservice.c * Dissector for ISI's Name Service resource * Copyright 2011, Klaus Kurzmann * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include "packet-isi.h" #include "isi-nameservice.h" static const value_string isi_nameservice_id[] = { {0x01, "PNS_NAME_QUERY_REQ"}, {0x02, "PNS_NAME_QUERY_RESP"}, {0x03, "PNS_NAME_ADD_IND"}, {0x04, "PNS_NAME_REMOVE_IND"}, {0x05, "PNS_NAME_ADD_REQ"}, {0x06, "PNS_NAME_ADD_RESP"}, {0x07, "PNS_NAME_REMOVE_REQ"}, {0x08, "PNS_NAME_REMOVE_RESP"}, {0x00, NULL} }; static const value_string isi_nameservice_reason[] = { {0x00, "PN_NAME_OK"}, {0x01, "PN_NAME_NOT_ALLOWED"}, {0x02, "PN_NAME_NO_ROOM"}, {0x03, "PN_NAME_UNKNOWN"}, }; static dissector_handle_t isi_nameservice_handle; static void dissect_isi_nameservice(tvbuff_t *tvb, packet_info *pinfo, proto_item *tree); static gint32 hf_isi_nameservice_cmd = -1; static gint32 hf_isi_nameservice_name = -1; static gint32 hf_isi_nameservice_dev = -1; static gint32 hf_isi_nameservice_obj = -1; static gint32 hf_isi_nameservice_flags = -1; static gint32 hf_isi_nameservice_reason = -1; static gint32 hf_isi_nameservice_bitmask = -1; static gint32 hf_isi_nameservice_matches_total = -1; static gint32 hf_isi_nameservice_matches = -1; void proto_reg_handoff_isi_nameservice(void) { static gboolean initialized=FALSE; if(!initialized) { isi_nameservice_handle = create_dissector_handle(dissect_isi_nameservice, proto_isi); dissector_add_uint("isi.resource", 0xdb, isi_nameservice_handle); } } void proto_register_isi_nameservice(void) { static hf_register_info hf[] = { { &hf_isi_nameservice_cmd, { "Command", "isi.nameservice.cmd", FT_UINT8, BASE_HEX, isi_nameservice_id, 0x0, "Command", HFILL }}, { &hf_isi_nameservice_name, { "Name", "isi.nameservice.name", FT_UINT32, BASE_HEX, NULL, 0x0, "Name", HFILL }}, { &hf_isi_nameservice_dev, { "Dev", "isi.nameservice.dev", FT_UINT8, BASE_HEX, NULL, 0x0, "Dev", HFILL }}, { &hf_isi_nameservice_obj, { "Object", "isi.nameservice.obj", FT_UINT8, BASE_HEX, NULL, 0x0, "Object", HFILL }}, { &hf_isi_nameservice_flags, { "Flags", "isi.nameservice.flags", FT_UINT8, BASE_HEX, NULL, 0x0, "Flags", HFILL }}, { &hf_isi_nameservice_reason, { "Reason", "isi.nameservice.reason", FT_UINT8, BASE_HEX, isi_nameservice_reason, 0x0, "Reason", HFILL }}, { &hf_isi_nameservice_bitmask, { "Bitmask", "isi.nameservice.bitmask", FT_UINT32, BASE_HEX, NULL, 0x0, "Bitmask", HFILL }}, { &hf_isi_nameservice_matches_total, { "Total Matches", "isi.nameservice.total_matches", FT_UINT16, BASE_DEC, NULL, 0x0, "Matches", HFILL }}, { &hf_isi_nameservice_matches, { "Matches in Message", "isi.nameservice.matches_in_message", FT_UINT16, BASE_DEC, NULL, 0x0, "Matches", HFILL }} }; proto_register_field_array(proto_isi, hf, array_length(hf)); register_dissector("isi.nameservice", dissect_isi_nameservice, proto_isi); } static void dissect_isi_nameservice_name(guint32 count, guint32 offset, tvbuff_t *tvb, packet_info *pinfo, proto_item *tree) { guint32 nr; for(nr = 0; nr < count; nr++, count--) { proto_tree *subtree = proto_tree_add_subtree_format(tree, tvb, offset, 0x08, ett_isi_msg, NULL, "Entry %d", nr + 1);; proto_tree_add_item(subtree, hf_isi_nameservice_name, tvb, 3, 4, FALSE); proto_tree_add_item(subtree, hf_isi_nameservice_dev, tvb, 8, 1, FALSE); proto_tree_add_item(subtree, hf_isi_nameservice_obj, tvb, 9, 1, FALSE); proto_tree_add_item(subtree, hf_isi_nameservice_flags, tvb, 10, 1, FALSE); } } static void dissect_isi_nameservice(tvbuff_t *tvb, packet_info *pinfo, proto_item *isitree) { proto_item *item = NULL; proto_tree *tree = NULL; guint8 cmd; if(isitree) { tree = proto_tree_add_subtree_format(isitree, tvb, 0, -1, ett_isi_msg, &item, "Payload"); proto_tree_add_item(tree, hf_isi_nameservice_cmd, tvb, 0, 1, FALSE); cmd = tvb_get_guint8(tvb, 0); switch (cmd) { case 0x01: /* PNS_NAME_QUERY_REQ */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Query Request"); proto_tree_add_item(tree, hf_isi_nameservice_name, tvb, 3, 4, FALSE); proto_tree_add_item(tree, hf_isi_nameservice_bitmask, tvb, 8, 4, FALSE); break; case 0x02: /* PNS_NAME_QUERY_RESP */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Query Response"); proto_tree_add_item(tree, hf_isi_nameservice_matches_total, tvb, 1, 2, FALSE); proto_tree_add_item(tree, hf_isi_nameservice_matches, tvb, 3, 2, FALSE); dissect_isi_nameservice_name(hf_isi_nameservice_matches, 5, tvb, pinfo, tree); break; case 0x03: /* PNS_NAME_ADD_IND */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Add Indication"); proto_tree_add_item(tree, hf_isi_nameservice_matches_total, tvb, 1, 2, FALSE); proto_tree_add_item(tree, hf_isi_nameservice_matches, tvb, 3, 2, FALSE); dissect_isi_nameservice_name(hf_isi_nameservice_matches, 5, tvb, pinfo, tree); break; case 0x04: /* PNS_NAME_REMOVE_IND */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Remove Indication"); proto_tree_add_item(tree, hf_isi_nameservice_matches_total, tvb, 1, 2, FALSE); proto_tree_add_item(tree, hf_isi_nameservice_matches, tvb, 3, 2, FALSE); dissect_isi_nameservice_name(hf_isi_nameservice_matches, 5, tvb, pinfo, tree); break; case 0x05: /* PNS_NAME_ADD_REQ */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Add Request"); dissect_isi_nameservice_name(1, 5, tvb, pinfo, tree); break; case 0x06: /* PNS_NAME_ADD_RESPONSE */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Add Response"); proto_tree_add_item(tree, hf_isi_nameservice_reason, tvb, 1, 1, FALSE); break; case 0x07: /* PNS_NAME_REMOVE_REQ */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Remove Request"); proto_tree_add_item(tree, hf_isi_nameservice_name, tvb, 3, 4, FALSE); break; case 0x08: /* PNS_NAME_REMOVE_RESP */ col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Remove Response"); proto_tree_add_item(tree, hf_isi_nameservice_reason, tvb, 1, 1, FALSE); break; case 0xF0: /* COMMON_MESSAGE */ dissect_isi_common("Nameservice", tvb, pinfo, tree); break; default: col_set_str(pinfo->cinfo, COL_INFO, "unknown Nameservice packet"); expert_add_info_format(pinfo, item, &ei_isi_unknown_packet, "unsupported packet"); break; } } }