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Diffstat (limited to 'packet-trmac.c')
-rw-r--r-- | packet-trmac.c | 415 |
1 files changed, 0 insertions, 415 deletions
diff --git a/packet-trmac.c b/packet-trmac.c deleted file mode 100644 index 42472b9866..0000000000 --- a/packet-trmac.c +++ /dev/null @@ -1,415 +0,0 @@ -/* packet-trmac.c - * Routines for Token-Ring Media Access Control - * Gilbert Ramirez <gram@alumni.rice.edu> - * - * $Id$ - * - * Ethereal - Network traffic analyzer - * By Gerald Combs <gerald@ethereal.com> - * Copyright 1998 Gerald Combs - * - * 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 <string.h> -#include <glib.h> -#include <epan/packet.h> -#include "packet-frame.h" - -static int proto_trmac = -1; -static int hf_trmac_mv = -1; -static int hf_trmac_length = -1; -static int hf_trmac_srcclass = -1; -static int hf_trmac_dstclass = -1; -static int hf_trmac_sv = -1; -static int hf_trmac_errors_iso = -1; -static int hf_trmac_errors_line = -1; -static int hf_trmac_errors_internal = -1; -static int hf_trmac_errors_burst = -1; -static int hf_trmac_errors_ac = -1; -static int hf_trmac_errors_abort = -1; -static int hf_trmac_errors_noniso = -1; -static int hf_trmac_errors_lost = -1; -static int hf_trmac_errors_congestion = -1; -static int hf_trmac_errors_fc = -1; -static int hf_trmac_errors_freq = -1; -static int hf_trmac_errors_token = -1; -static int hf_trmac_naun = -1; - -static gint ett_tr_mac = -1; -static gint ett_tr_ierr_cnt = -1; -static gint ett_tr_nerr_cnt = -1; - -/* Major Vector */ -static value_string major_vector_vs[] = { - { 0x00, "Response" }, - { 0x02, "Beacon" }, - { 0x03, "Claim Token" }, - { 0x04, "Ring Purge" }, - { 0x05, "Active Monitor Present" }, - { 0x06, "Standby Monitor Present" }, - { 0x07, "Duplicate Address Test" }, - { 0x09, "Transmit Forward" }, - { 0x0B, "Remove Ring Station" }, - { 0x0C, "Change Parameters" }, - { 0x0D, "Initialize Ring Station" }, - { 0x0E, "Request Ring Station Address" }, - { 0x0F, "Request Ring Station Address" }, - { 0x10, "Request Ring Station Attachments" }, - { 0x20, "Request Initialization" }, - { 0x22, "Report Ring Station Address" }, - { 0x23, "Report Ring Station State" }, - { 0x24, "Report Ring Station Attachments" }, - { 0x25, "Report New Active Monitor" }, - { 0x26, "Report NAUN Change" }, - { 0x27, "Report Poll Error" }, - { 0x28, "Report Monitor Errors" }, - { 0x29, "Report Error" }, - { 0x2A, "Report Transmit Forward" }, - { 0x00, NULL } -}; - -/* Src. and Dest. Classes */ -static value_string classes_vs[] = { - { 0x00, "Ring Station" }, - { 0x01, "LLC Manager" }, - { 0x04, "Configuration Report Server" }, - { 0x05, "Ring Parameter Server" }, - { 0x06, "Ring Error Monitor" }, - { 0x00, NULL } -}; - - -/* Sub-vectors */ -static int -sv_text(tvbuff_t *tvb, int svoff, proto_tree *tree) -{ - int sv_length = tvb_get_guint8(tvb, svoff+0); - guint16 beacon_type, ring; - - char *beacon[] = {"Recovery mode set", "Signal loss error", - "Streaming signal not Claim Token MAC frame", - "Streaming signal, Claim Token MAC frame"}; - - proto_tree *sv_tree; - proto_item *ti; - - guchar errors[6]; /* isolating or non-isolating */ - - /* Check the SV length. - XXX - Should we do this in each case statement below, e.g. to force - an SV length of 6 for the NAUN address? */ - if (sv_length < 1) { - proto_tree_add_protocol_format(tree, proto_malformed, tvb, svoff+0, 1, - "Invalid subvector length: %d bytes", sv_length); - return sv_length; - } - - /* this just adds to the clutter on the screen... - proto_tree_add_text(tree, tvb, svoff, 1, - "Subvector Length: %d bytes", sv_length);*/ - - proto_tree_add_uint_hidden(tree, hf_trmac_sv, tvb, svoff+1, 1, tvb_get_guint8(tvb, svoff+1)); - - switch(tvb_get_guint8(tvb, svoff+1)) { - case 0x01: /* Beacon Type */ - beacon_type = tvb_get_ntohs(tvb, svoff+2); - if (beacon_type < array_length(beacon)) { - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Beacon Type: %s", beacon[beacon_type] ); - } else { - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Beacon Type: Illegal value: %d", beacon_type ); - } - break; - - case 0x02: /* NAUN */ - proto_tree_add_ether(tree, hf_trmac_naun, tvb, svoff+1, sv_length-1, - tvb_get_ptr(tvb, svoff+2, 6)); - break; - - case 0x03: /* Local Ring Number */ - ring = tvb_get_ntohs(tvb, svoff+2); - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Local Ring Number: 0x%04X (%d)", ring, ring); - break; - - case 0x04: /* Assign Physical Location */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Assign Physical Location: 0x%08X", tvb_get_ntohl(tvb, svoff+2) ); - break; - - case 0x05: /* Soft Error Report Value */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Soft Error Report Value: %d ms", 10 * tvb_get_ntohs(tvb, svoff+2) ); - break; - - case 0x06: /* Enabled Function Classes */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Enabled Function Classes: %04X", tvb_get_ntohs(tvb, svoff+2) ); - break; - - case 0x07: /* Allowed Access Priority */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Allowed Access Priority: %04X", tvb_get_ntohs(tvb, svoff+2) ); - break; - - case 0x09: /* Correlator */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Correlator: %04X", tvb_get_ntohs(tvb, svoff+2) ); - break; - - case 0x0A: /* Address of last neighbor notification */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Address of Last Neighbor Notification: %s", - ether_to_str(tvb_get_ptr(tvb, svoff+2, 6))); - break; - - case 0x0B: /* Physical Location */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Physical Location: 0x%08X", tvb_get_ntohl(tvb, svoff+2) ); - break; - - case 0x20: /* Response Code */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Response Code: 0x%04X 0x%04X", tvb_get_ntohl(tvb, svoff+2), - tvb_get_ntohl(tvb, svoff+4) ); - break; - - case 0x21: /* Reserved */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Reserved: 0x%04X", tvb_get_ntohs(tvb, svoff+2) ); - break; - - case 0x22: /* Product Instance ID */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Product Instance ID: ..."); - break; - - case 0x23: /* Ring Station Microcode Level */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Ring Station Microcode Level: ..."); - break; - - case 0x26: /* Wrap data */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Wrap Data: ... (%d bytes)", sv_length - 2); - break; - - case 0x27: /* Frame Forward */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Frame Forward: ... (%d bytes)", sv_length - 2); - break; - - case 0x29: /* Ring Station Status Subvector */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Ring Station Status Subvector: ..."); - break; - - case 0x2A: /* Transmit Status Code */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Transmit Status Code: %04X", tvb_get_ntohs(tvb, svoff+2) ); - break; - - case 0x2B: /* Group Address */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Group Address: %08X", tvb_get_ntohl(tvb, svoff+2) ); - break; - - case 0x2C: /* Functional Address */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Functional Address: %08X", tvb_get_ntohl(tvb, svoff+2) ); - break; - - case 0x2D: /* Isolating Error Counts */ - memcpy(errors, tvb_get_ptr(tvb, svoff+2, 6), 6); - ti = proto_tree_add_uint(tree, hf_trmac_errors_iso, tvb, svoff+1, sv_length-1, - errors[0] + errors[1] + errors[2] + errors[3] + errors[4]); - sv_tree = proto_item_add_subtree(ti, ett_tr_ierr_cnt); - - proto_tree_add_uint(sv_tree, hf_trmac_errors_line, tvb, svoff+2, 1, errors[0]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_internal, tvb, svoff+3, 1, errors[1]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_burst, tvb, svoff+4, 1, errors[2]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_ac, tvb, svoff+5, 1, errors[3]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_abort, tvb, svoff+6, 1, errors[4]); - - break; - - case 0x2E: /* Non-Isolating Error Counts */ - memcpy(errors, tvb_get_ptr(tvb, svoff+2, 6), 6); - ti = proto_tree_add_uint(tree, hf_trmac_errors_noniso, tvb, svoff+1, sv_length-1, - errors[0] + errors[1] + errors[2] + errors[3] + errors[4]); - sv_tree = proto_item_add_subtree(ti, ett_tr_nerr_cnt); - - proto_tree_add_uint(sv_tree, hf_trmac_errors_lost, tvb, svoff+2, 1, errors[0]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_congestion, tvb, svoff+3, 1, errors[1]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_fc, tvb, svoff+4, 1, errors[2]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_freq, tvb, svoff+5, 1, errors[3]); - proto_tree_add_uint(sv_tree, hf_trmac_errors_token, tvb, svoff+6, 1, errors[4]); - break; - - case 0x30: /* Error Code */ - proto_tree_add_text(tree, tvb, svoff+1, sv_length-1, - "Error Code: %04X", tvb_get_ntohs(tvb, svoff+2) ); - break; - - default: /* Unknown */ - proto_tree_add_text(tree, tvb, svoff+1, 1, - "Unknown Sub-Vector: 0x%02X", tvb_get_guint8(tvb, svoff+1)); - } - return sv_length; -} - -static void -dissect_trmac(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) -{ - proto_tree *mac_tree = NULL; - proto_item *ti; - int mv_length, sv_offset, sv_additional; - guint8 mv_val; - char *mv_text; - - if (check_col(pinfo->cinfo, COL_PROTOCOL)) - col_set_str(pinfo->cinfo, COL_PROTOCOL, "TR MAC"); - if (check_col(pinfo->cinfo, COL_INFO)) - col_clear(pinfo->cinfo, COL_INFO); - - mv_val = tvb_get_guint8(tvb, 3); - - /* Interpret the major vector */ - mv_text = val_to_str(mv_val, major_vector_vs, "Unknown Major Vector: %u"); - - if (check_col(pinfo->cinfo, COL_INFO)) - col_add_str(pinfo->cinfo, COL_INFO, mv_text); - - if (tree) { - mv_length = tvb_get_ntohs(tvb, 0); - ti = proto_tree_add_item(tree, proto_trmac, tvb, 0, mv_length, FALSE); - mac_tree = proto_item_add_subtree(ti, ett_tr_mac); - - proto_tree_add_uint(mac_tree, hf_trmac_mv, tvb, 3, 1, mv_val); - proto_tree_add_uint_format(mac_tree, hf_trmac_length, tvb, 0, 2, mv_length, - "Total Length: %d bytes", mv_length); - proto_tree_add_uint(mac_tree, hf_trmac_srcclass, tvb, 2, 1, tvb_get_guint8(tvb, 2) & 0x0f); - proto_tree_add_uint(mac_tree, hf_trmac_dstclass, tvb, 2, 1, tvb_get_guint8(tvb, 2) >> 4 ); - - /* interpret the subvectors */ - sv_offset = 4; - while (sv_offset < mv_length) { - sv_additional = sv_text(tvb, sv_offset, mac_tree); - - /* if this is a bad packet, we could get a 0-length added here, - * looping forever */ - if (sv_additional > 0) - sv_offset += sv_additional; - else - break; - } - } -} - -void -proto_register_trmac(void) -{ - static hf_register_info hf[] = { - { &hf_trmac_mv, - { "Major Vector", "trmac.mvec", FT_UINT8, BASE_HEX, major_vector_vs, 0x0, - "", HFILL }}, - - { &hf_trmac_length, - { "Total Length", "trmac.length", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_srcclass, - { "Source Class", "trmac.srcclass", FT_UINT8, BASE_HEX, classes_vs, 0x0, - "", HFILL }}, - - { &hf_trmac_dstclass, - { "Destination Class", "trmac.dstclass", FT_UINT8, BASE_HEX, classes_vs, 0x0, - "", HFILL }}, - - { &hf_trmac_sv, - { "Sub-Vector", "trmac.svec", FT_UINT8, BASE_HEX, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_iso, - { "Isolating Errors", "trmac.errors.iso", FT_UINT16, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_line, - { "Line Errors", "trmac.errors.line", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_internal, - { "Internal Errors", "trmac.errors.internal", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_burst, - { "Burst Errors", "trmac.errors.burst", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_ac, - { "A/C Errors", "trmac.errors.ac", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_abort, - { "Abort Delimiter Transmitted Errors", "trmac.errors.abort", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_noniso, - { "Non-Isolating Errors", "trmac.errors.noniso", FT_UINT16, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_lost, - { "Lost Frame Errors", "trmac.errors.lost", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_congestion, - { "Receiver Congestion Errors", "trmac.errors.congestion", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_fc, - { "Frame-Copied Errors", "trmac.errors.fc", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_freq, - { "Frequency Errors", "trmac.errors.freq", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_errors_token, - { "Token Errors", "trmac.errors.token", FT_UINT8, BASE_DEC, NULL, 0x0, - "", HFILL }}, - - { &hf_trmac_naun, - { "NAUN", "trmac.naun", FT_ETHER, BASE_DEC, NULL, 0x0, - "", HFILL }}, - }; - static gint *ett[] = { - &ett_tr_mac, - &ett_tr_ierr_cnt, - &ett_tr_nerr_cnt, - }; - - proto_trmac = proto_register_protocol("Token-Ring Media Access Control", - "TR MAC", "trmac"); - proto_register_field_array(proto_trmac, hf, array_length(hf)); - proto_register_subtree_array(ett, array_length(ett)); - - register_dissector("trmac", dissect_trmac, proto_trmac); -} |