659 lines
23 KiB
C
659 lines
23 KiB
C
/*
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* Copyright (c) 1998-2006 The TCPDUMP project
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code
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* distributions retain the above copyright notice and this paragraph
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* in its entirety, and (2) distributions including binary code include
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* the above copyright notice and this paragraph in its entirety in
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* the documentation or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
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* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
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* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE.
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*
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* support for the IEEE "slow protocols" LACP, MARKER as per 802.3ad
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* OAM as per 802.3ah
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*
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* Original code by Hannes Gredler (hannes@juniper.net)
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*/
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#define NETDISSECT_REWORKED
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <tcpdump-stdinc.h>
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#include "interface.h"
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#include "extract.h"
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#include "addrtoname.h"
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#include "ether.h"
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#include "oui.h"
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struct slow_common_header_t {
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uint8_t proto_subtype;
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uint8_t version;
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};
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#define SLOW_PROTO_LACP 1
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#define SLOW_PROTO_MARKER 2
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#define SLOW_PROTO_OAM 3
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#define LACP_VERSION 1
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#define MARKER_VERSION 1
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static const struct tok slow_proto_values[] = {
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{ SLOW_PROTO_LACP, "LACP" },
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{ SLOW_PROTO_MARKER, "MARKER" },
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{ SLOW_PROTO_OAM, "OAM" },
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{ 0, NULL}
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};
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static const struct tok slow_oam_flag_values[] = {
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{ 0x0001, "Link Fault" },
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{ 0x0002, "Dying Gasp" },
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{ 0x0004, "Critical Event" },
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{ 0x0008, "Local Evaluating" },
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{ 0x0010, "Local Stable" },
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{ 0x0020, "Remote Evaluating" },
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{ 0x0040, "Remote Stable" },
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{ 0, NULL}
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};
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#define SLOW_OAM_CODE_INFO 0x00
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#define SLOW_OAM_CODE_EVENT_NOTIF 0x01
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#define SLOW_OAM_CODE_VAR_REQUEST 0x02
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#define SLOW_OAM_CODE_VAR_RESPONSE 0x03
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#define SLOW_OAM_CODE_LOOPBACK_CTRL 0x04
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#define SLOW_OAM_CODE_PRIVATE 0xfe
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static const struct tok slow_oam_code_values[] = {
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{ SLOW_OAM_CODE_INFO, "Information" },
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{ SLOW_OAM_CODE_EVENT_NOTIF, "Event Notification" },
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{ SLOW_OAM_CODE_VAR_REQUEST, "Variable Request" },
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{ SLOW_OAM_CODE_VAR_RESPONSE, "Variable Response" },
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{ SLOW_OAM_CODE_LOOPBACK_CTRL, "Loopback Control" },
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{ SLOW_OAM_CODE_PRIVATE, "Vendor Private" },
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{ 0, NULL}
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};
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struct slow_oam_info_t {
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uint8_t info_type;
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uint8_t info_length;
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uint8_t oam_version;
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uint8_t revision[2];
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uint8_t state;
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uint8_t oam_config;
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uint8_t oam_pdu_config[2];
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uint8_t oui[3];
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uint8_t vendor_private[4];
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};
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#define SLOW_OAM_INFO_TYPE_END_OF_TLV 0x00
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#define SLOW_OAM_INFO_TYPE_LOCAL 0x01
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#define SLOW_OAM_INFO_TYPE_REMOTE 0x02
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#define SLOW_OAM_INFO_TYPE_ORG_SPECIFIC 0xfe
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static const struct tok slow_oam_info_type_values[] = {
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{ SLOW_OAM_INFO_TYPE_END_OF_TLV, "End of TLV marker" },
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{ SLOW_OAM_INFO_TYPE_LOCAL, "Local" },
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{ SLOW_OAM_INFO_TYPE_REMOTE, "Remote" },
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{ SLOW_OAM_INFO_TYPE_ORG_SPECIFIC, "Organization specific" },
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{ 0, NULL}
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};
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#define OAM_INFO_TYPE_PARSER_MASK 0x3
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static const struct tok slow_oam_info_type_state_parser_values[] = {
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{ 0x00, "forwarding" },
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{ 0x01, "looping back" },
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{ 0x02, "discarding" },
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{ 0x03, "reserved" },
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{ 0, NULL}
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};
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#define OAM_INFO_TYPE_MUX_MASK 0x4
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static const struct tok slow_oam_info_type_state_mux_values[] = {
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{ 0x00, "forwarding" },
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{ 0x04, "discarding" },
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{ 0, NULL}
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};
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static const struct tok slow_oam_info_type_oam_config_values[] = {
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{ 0x01, "Active" },
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{ 0x02, "Unidirectional" },
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{ 0x04, "Remote-Loopback" },
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{ 0x08, "Link-Events" },
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{ 0x10, "Variable-Retrieval" },
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{ 0, NULL}
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};
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/* 11 Bits */
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#define OAM_INFO_TYPE_PDU_SIZE_MASK 0x7ff
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#define SLOW_OAM_LINK_EVENT_END_OF_TLV 0x00
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#define SLOW_OAM_LINK_EVENT_ERR_SYM_PER 0x01
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#define SLOW_OAM_LINK_EVENT_ERR_FRM 0x02
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#define SLOW_OAM_LINK_EVENT_ERR_FRM_PER 0x03
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#define SLOW_OAM_LINK_EVENT_ERR_FRM_SUMM 0x04
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#define SLOW_OAM_LINK_EVENT_ORG_SPECIFIC 0xfe
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static const struct tok slow_oam_link_event_values[] = {
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{ SLOW_OAM_LINK_EVENT_END_OF_TLV, "End of TLV marker" },
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{ SLOW_OAM_LINK_EVENT_ERR_SYM_PER, "Errored Symbol Period Event" },
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{ SLOW_OAM_LINK_EVENT_ERR_FRM, "Errored Frame Event" },
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{ SLOW_OAM_LINK_EVENT_ERR_FRM_PER, "Errored Frame Period Event" },
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{ SLOW_OAM_LINK_EVENT_ERR_FRM_SUMM, "Errored Frame Seconds Summary Event" },
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{ SLOW_OAM_LINK_EVENT_ORG_SPECIFIC, "Organization specific" },
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{ 0, NULL}
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};
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struct slow_oam_link_event_t {
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uint8_t event_type;
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uint8_t event_length;
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uint8_t time_stamp[2];
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uint8_t window[8];
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uint8_t threshold[8];
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uint8_t errors[8];
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uint8_t errors_running_total[8];
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uint8_t event_running_total[4];
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};
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struct slow_oam_variablerequest_t {
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uint8_t branch;
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uint8_t leaf[2];
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};
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struct slow_oam_variableresponse_t {
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uint8_t branch;
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uint8_t leaf[2];
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uint8_t length;
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};
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struct slow_oam_loopbackctrl_t {
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uint8_t command;
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};
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static const struct tok slow_oam_loopbackctrl_cmd_values[] = {
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{ 0x01, "Enable OAM Remote Loopback" },
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{ 0x02, "Disable OAM Remote Loopback" },
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{ 0, NULL}
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};
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struct tlv_header_t {
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uint8_t type;
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uint8_t length;
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};
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#define LACP_TLV_TERMINATOR 0x00
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#define LACP_TLV_ACTOR_INFO 0x01
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#define LACP_TLV_PARTNER_INFO 0x02
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#define LACP_TLV_COLLECTOR_INFO 0x03
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#define MARKER_TLV_TERMINATOR 0x00
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#define MARKER_TLV_MARKER_INFO 0x01
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static const struct tok slow_tlv_values[] = {
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{ (SLOW_PROTO_LACP << 8) + LACP_TLV_TERMINATOR, "Terminator"},
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{ (SLOW_PROTO_LACP << 8) + LACP_TLV_ACTOR_INFO, "Actor Information"},
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{ (SLOW_PROTO_LACP << 8) + LACP_TLV_PARTNER_INFO, "Partner Information"},
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{ (SLOW_PROTO_LACP << 8) + LACP_TLV_COLLECTOR_INFO, "Collector Information"},
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{ (SLOW_PROTO_MARKER << 8) + MARKER_TLV_TERMINATOR, "Terminator"},
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{ (SLOW_PROTO_MARKER << 8) + MARKER_TLV_MARKER_INFO, "Marker Information"},
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{ 0, NULL}
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};
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struct lacp_tlv_actor_partner_info_t {
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uint8_t sys_pri[2];
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uint8_t sys[ETHER_ADDR_LEN];
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uint8_t key[2];
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uint8_t port_pri[2];
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uint8_t port[2];
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uint8_t state;
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uint8_t pad[3];
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};
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static const struct tok lacp_tlv_actor_partner_info_state_values[] = {
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{ 0x01, "Activity"},
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{ 0x02, "Timeout"},
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{ 0x04, "Aggregation"},
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{ 0x08, "Synchronization"},
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{ 0x10, "Collecting"},
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{ 0x20, "Distributing"},
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{ 0x40, "Default"},
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{ 0x80, "Expired"},
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{ 0, NULL}
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};
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struct lacp_tlv_collector_info_t {
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uint8_t max_delay[2];
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uint8_t pad[12];
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};
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struct marker_tlv_marker_info_t {
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uint8_t req_port[2];
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uint8_t req_sys[ETHER_ADDR_LEN];
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uint8_t req_trans_id[4];
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uint8_t pad[2];
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};
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struct lacp_marker_tlv_terminator_t {
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uint8_t pad[50];
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};
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static void slow_marker_lacp_print(netdissect_options *, register const u_char *, register u_int);
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static void slow_oam_print(netdissect_options *, register const u_char *, register u_int);
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const struct slow_common_header_t *slow_com_header;
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void
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slow_print(netdissect_options *ndo,
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register const u_char *pptr, register u_int len) {
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int print_version;
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slow_com_header = (const struct slow_common_header_t *)pptr;
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ND_TCHECK(*slow_com_header);
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/*
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* Sanity checking of the header.
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*/
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switch (slow_com_header->proto_subtype) {
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case SLOW_PROTO_LACP:
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if (slow_com_header->version != LACP_VERSION) {
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ND_PRINT((ndo, "LACP version %u packet not supported",slow_com_header->version));
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return;
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}
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print_version = 1;
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break;
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case SLOW_PROTO_MARKER:
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if (slow_com_header->version != MARKER_VERSION) {
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ND_PRINT((ndo, "MARKER version %u packet not supported",slow_com_header->version));
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return;
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}
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print_version = 1;
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break;
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case SLOW_PROTO_OAM: /* fall through */
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print_version = 0;
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break;
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default:
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/* print basic information and exit */
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print_version = -1;
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break;
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}
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if (print_version) {
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ND_PRINT((ndo, "%sv%u, length %u",
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tok2str(slow_proto_values, "unknown (%u)",slow_com_header->proto_subtype),
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slow_com_header->version,
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len));
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} else {
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/* some slow protos don't have a version number in the header */
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ND_PRINT((ndo, "%s, length %u",
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tok2str(slow_proto_values, "unknown (%u)",slow_com_header->proto_subtype),
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len));
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}
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/* unrecognized subtype */
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if (print_version == -1) {
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print_unknown_data(ndo, pptr, "\n\t", len);
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return;
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}
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if (!ndo->ndo_vflag)
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return;
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switch (slow_com_header->proto_subtype) {
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default: /* should not happen */
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break;
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case SLOW_PROTO_OAM:
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/* skip proto_subtype */
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slow_oam_print(ndo, pptr+1, len-1);
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break;
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case SLOW_PROTO_LACP: /* LACP and MARKER share the same semantics */
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case SLOW_PROTO_MARKER:
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/* skip slow_common_header */
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len -= sizeof(const struct slow_common_header_t);
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pptr += sizeof(const struct slow_common_header_t);
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slow_marker_lacp_print(ndo, pptr, len);
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break;
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}
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return;
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trunc:
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ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
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}
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static void
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slow_marker_lacp_print(netdissect_options *ndo,
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register const u_char *tptr, register u_int tlen) {
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const struct tlv_header_t *tlv_header;
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const u_char *tlv_tptr;
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u_int tlv_len, tlv_tlen;
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union {
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const struct lacp_marker_tlv_terminator_t *lacp_marker_tlv_terminator;
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const struct lacp_tlv_actor_partner_info_t *lacp_tlv_actor_partner_info;
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const struct lacp_tlv_collector_info_t *lacp_tlv_collector_info;
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const struct marker_tlv_marker_info_t *marker_tlv_marker_info;
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} tlv_ptr;
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while(tlen>0) {
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/* did we capture enough for fully decoding the tlv header ? */
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ND_TCHECK2(*tptr, sizeof(struct tlv_header_t));
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tlv_header = (const struct tlv_header_t *)tptr;
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tlv_len = tlv_header->length;
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ND_PRINT((ndo, "\n\t%s TLV (0x%02x), length %u",
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tok2str(slow_tlv_values,
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"Unknown",
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(slow_com_header->proto_subtype << 8) + tlv_header->type),
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tlv_header->type,
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tlv_len));
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if ((tlv_len < sizeof(struct tlv_header_t) ||
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tlv_len > tlen) &&
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tlv_header->type != LACP_TLV_TERMINATOR &&
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tlv_header->type != MARKER_TLV_TERMINATOR) {
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ND_PRINT((ndo, "\n\t-----trailing data-----"));
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print_unknown_data(ndo, tptr+sizeof(struct tlv_header_t), "\n\t ", tlen);
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return;
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}
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tlv_tptr=tptr+sizeof(struct tlv_header_t);
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tlv_tlen=tlv_len-sizeof(struct tlv_header_t);
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/* did we capture enough for fully decoding the tlv ? */
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ND_TCHECK2(*tptr, tlv_len);
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switch((slow_com_header->proto_subtype << 8) + tlv_header->type) {
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/* those two TLVs have the same structure -> fall through */
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case ((SLOW_PROTO_LACP << 8) + LACP_TLV_ACTOR_INFO):
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case ((SLOW_PROTO_LACP << 8) + LACP_TLV_PARTNER_INFO):
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tlv_ptr.lacp_tlv_actor_partner_info = (const struct lacp_tlv_actor_partner_info_t *)tlv_tptr;
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ND_PRINT((ndo, "\n\t System %s, System Priority %u, Key %u" \
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", Port %u, Port Priority %u\n\t State Flags [%s]",
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etheraddr_string(ndo, tlv_ptr.lacp_tlv_actor_partner_info->sys),
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EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->sys_pri),
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EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->key),
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EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->port),
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EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->port_pri),
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bittok2str(lacp_tlv_actor_partner_info_state_values,
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"none",
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tlv_ptr.lacp_tlv_actor_partner_info->state)));
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break;
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case ((SLOW_PROTO_LACP << 8) + LACP_TLV_COLLECTOR_INFO):
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tlv_ptr.lacp_tlv_collector_info = (const struct lacp_tlv_collector_info_t *)tlv_tptr;
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ND_PRINT((ndo, "\n\t Max Delay %u",
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EXTRACT_16BITS(tlv_ptr.lacp_tlv_collector_info->max_delay)));
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break;
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case ((SLOW_PROTO_MARKER << 8) + MARKER_TLV_MARKER_INFO):
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tlv_ptr.marker_tlv_marker_info = (const struct marker_tlv_marker_info_t *)tlv_tptr;
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ND_PRINT((ndo, "\n\t Request System %s, Request Port %u, Request Transaction ID 0x%08x",
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etheraddr_string(ndo, tlv_ptr.marker_tlv_marker_info->req_sys),
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EXTRACT_16BITS(tlv_ptr.marker_tlv_marker_info->req_port),
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EXTRACT_32BITS(tlv_ptr.marker_tlv_marker_info->req_trans_id)));
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break;
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/* those two TLVs have the same structure -> fall through */
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case ((SLOW_PROTO_LACP << 8) + LACP_TLV_TERMINATOR):
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case ((SLOW_PROTO_MARKER << 8) + LACP_TLV_TERMINATOR):
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tlv_ptr.lacp_marker_tlv_terminator = (const struct lacp_marker_tlv_terminator_t *)tlv_tptr;
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if (tlv_len == 0) {
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tlv_len = sizeof(tlv_ptr.lacp_marker_tlv_terminator->pad) +
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sizeof(struct tlv_header_t);
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/* tell the user that we modified the length field */
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if (ndo->ndo_vflag>1)
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ND_PRINT((ndo, " (=%u)", tlv_len));
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/* we have messed around with the length field - now we need to check
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* again if there are enough bytes on the wire for the hexdump */
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ND_TCHECK2(tlv_ptr.lacp_marker_tlv_terminator->pad[0],
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sizeof(tlv_ptr.lacp_marker_tlv_terminator->pad));
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}
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break;
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default:
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if (ndo->ndo_vflag <= 1)
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print_unknown_data(ndo, tlv_tptr, "\n\t ", tlv_tlen);
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break;
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}
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/* do we want to see an additional hexdump ? */
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if (ndo->ndo_vflag > 1) {
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print_unknown_data(ndo, tptr+sizeof(struct tlv_header_t), "\n\t ",
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tlv_len-sizeof(struct tlv_header_t));
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}
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tptr+=tlv_len;
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tlen-=tlv_len;
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}
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return;
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trunc:
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ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
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}
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static void
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slow_oam_print(netdissect_options *ndo,
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register const u_char *tptr, register u_int tlen) {
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u_int hexdump;
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struct slow_oam_common_header_t {
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uint8_t flags[2];
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uint8_t code;
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|
};
|
|
|
|
struct slow_oam_tlv_header_t {
|
|
uint8_t type;
|
|
uint8_t length;
|
|
};
|
|
|
|
union {
|
|
const struct slow_oam_common_header_t *slow_oam_common_header;
|
|
const struct slow_oam_tlv_header_t *slow_oam_tlv_header;
|
|
} ptr;
|
|
|
|
union {
|
|
const struct slow_oam_info_t *slow_oam_info;
|
|
const struct slow_oam_link_event_t *slow_oam_link_event;
|
|
const struct slow_oam_variablerequest_t *slow_oam_variablerequest;
|
|
const struct slow_oam_variableresponse_t *slow_oam_variableresponse;
|
|
const struct slow_oam_loopbackctrl_t *slow_oam_loopbackctrl;
|
|
} tlv;
|
|
|
|
ptr.slow_oam_common_header = (struct slow_oam_common_header_t *)tptr;
|
|
tptr += sizeof(struct slow_oam_common_header_t);
|
|
tlen -= sizeof(struct slow_oam_common_header_t);
|
|
|
|
ND_PRINT((ndo, "\n\tCode %s OAM PDU, Flags [%s]",
|
|
tok2str(slow_oam_code_values, "Unknown (%u)", ptr.slow_oam_common_header->code),
|
|
bittok2str(slow_oam_flag_values,
|
|
"none",
|
|
EXTRACT_16BITS(&ptr.slow_oam_common_header->flags))));
|
|
|
|
switch (ptr.slow_oam_common_header->code) {
|
|
case SLOW_OAM_CODE_INFO:
|
|
while (tlen > 0) {
|
|
ptr.slow_oam_tlv_header = (const struct slow_oam_tlv_header_t *)tptr;
|
|
ND_PRINT((ndo, "\n\t %s Information Type (%u), length %u",
|
|
tok2str(slow_oam_info_type_values, "Reserved",
|
|
ptr.slow_oam_tlv_header->type),
|
|
ptr.slow_oam_tlv_header->type,
|
|
ptr.slow_oam_tlv_header->length));
|
|
|
|
hexdump = FALSE;
|
|
switch (ptr.slow_oam_tlv_header->type) {
|
|
case SLOW_OAM_INFO_TYPE_END_OF_TLV:
|
|
if (ptr.slow_oam_tlv_header->length != 0) {
|
|
ND_PRINT((ndo, "\n\t ERROR: illegal length - should be 0"));
|
|
}
|
|
return;
|
|
|
|
case SLOW_OAM_INFO_TYPE_LOCAL: /* identical format - fall through */
|
|
case SLOW_OAM_INFO_TYPE_REMOTE:
|
|
tlv.slow_oam_info = (const struct slow_oam_info_t *)tptr;
|
|
|
|
if (tlv.slow_oam_info->info_length !=
|
|
sizeof(struct slow_oam_info_t)) {
|
|
ND_PRINT((ndo, "\n\t ERROR: illegal length - should be %lu",
|
|
(unsigned long) sizeof(struct slow_oam_info_t)));
|
|
return;
|
|
}
|
|
|
|
ND_PRINT((ndo, "\n\t OAM-Version %u, Revision %u",
|
|
tlv.slow_oam_info->oam_version,
|
|
EXTRACT_16BITS(&tlv.slow_oam_info->revision)));
|
|
|
|
ND_PRINT((ndo, "\n\t State-Parser-Action %s, State-MUX-Action %s",
|
|
tok2str(slow_oam_info_type_state_parser_values, "Reserved",
|
|
tlv.slow_oam_info->state & OAM_INFO_TYPE_PARSER_MASK),
|
|
tok2str(slow_oam_info_type_state_mux_values, "Reserved",
|
|
tlv.slow_oam_info->state & OAM_INFO_TYPE_MUX_MASK)));
|
|
ND_PRINT((ndo, "\n\t OAM-Config Flags [%s], OAM-PDU-Config max-PDU size %u",
|
|
bittok2str(slow_oam_info_type_oam_config_values, "none",
|
|
tlv.slow_oam_info->oam_config),
|
|
EXTRACT_16BITS(&tlv.slow_oam_info->oam_pdu_config) &
|
|
OAM_INFO_TYPE_PDU_SIZE_MASK));
|
|
ND_PRINT((ndo, "\n\t OUI %s (0x%06x), Vendor-Private 0x%08x",
|
|
tok2str(oui_values, "Unknown",
|
|
EXTRACT_24BITS(&tlv.slow_oam_info->oui)),
|
|
EXTRACT_24BITS(&tlv.slow_oam_info->oui),
|
|
EXTRACT_32BITS(&tlv.slow_oam_info->vendor_private)));
|
|
break;
|
|
|
|
case SLOW_OAM_INFO_TYPE_ORG_SPECIFIC:
|
|
hexdump = TRUE;
|
|
break;
|
|
|
|
default:
|
|
hexdump = TRUE;
|
|
break;
|
|
}
|
|
|
|
/* infinite loop check */
|
|
if (!ptr.slow_oam_tlv_header->length) {
|
|
return;
|
|
}
|
|
|
|
/* do we also want to see a hex dump ? */
|
|
if (ndo->ndo_vflag > 1 || hexdump==TRUE) {
|
|
print_unknown_data(ndo, tptr, "\n\t ",
|
|
ptr.slow_oam_tlv_header->length);
|
|
}
|
|
|
|
tlen -= ptr.slow_oam_tlv_header->length;
|
|
tptr += ptr.slow_oam_tlv_header->length;
|
|
}
|
|
break;
|
|
|
|
case SLOW_OAM_CODE_EVENT_NOTIF:
|
|
while (tlen > 0) {
|
|
ptr.slow_oam_tlv_header = (const struct slow_oam_tlv_header_t *)tptr;
|
|
ND_PRINT((ndo, "\n\t %s Link Event Type (%u), length %u",
|
|
tok2str(slow_oam_link_event_values, "Reserved",
|
|
ptr.slow_oam_tlv_header->type),
|
|
ptr.slow_oam_tlv_header->type,
|
|
ptr.slow_oam_tlv_header->length));
|
|
|
|
hexdump = FALSE;
|
|
switch (ptr.slow_oam_tlv_header->type) {
|
|
case SLOW_OAM_LINK_EVENT_END_OF_TLV:
|
|
if (ptr.slow_oam_tlv_header->length != 0) {
|
|
ND_PRINT((ndo, "\n\t ERROR: illegal length - should be 0"));
|
|
}
|
|
return;
|
|
|
|
case SLOW_OAM_LINK_EVENT_ERR_SYM_PER: /* identical format - fall through */
|
|
case SLOW_OAM_LINK_EVENT_ERR_FRM:
|
|
case SLOW_OAM_LINK_EVENT_ERR_FRM_PER:
|
|
case SLOW_OAM_LINK_EVENT_ERR_FRM_SUMM:
|
|
tlv.slow_oam_link_event = (const struct slow_oam_link_event_t *)tptr;
|
|
|
|
if (tlv.slow_oam_link_event->event_length !=
|
|
sizeof(struct slow_oam_link_event_t)) {
|
|
ND_PRINT((ndo, "\n\t ERROR: illegal length - should be %lu",
|
|
(unsigned long) sizeof(struct slow_oam_link_event_t)));
|
|
return;
|
|
}
|
|
|
|
ND_PRINT((ndo, "\n\t Timestamp %u ms, Errored Window %" PRIu64
|
|
"\n\t Errored Threshold %" PRIu64
|
|
"\n\t Errors %" PRIu64
|
|
"\n\t Error Running Total %" PRIu64
|
|
"\n\t Event Running Total %u",
|
|
EXTRACT_16BITS(&tlv.slow_oam_link_event->time_stamp)*100,
|
|
EXTRACT_64BITS(&tlv.slow_oam_link_event->window),
|
|
EXTRACT_64BITS(&tlv.slow_oam_link_event->threshold),
|
|
EXTRACT_64BITS(&tlv.slow_oam_link_event->errors),
|
|
EXTRACT_64BITS(&tlv.slow_oam_link_event->errors_running_total),
|
|
EXTRACT_32BITS(&tlv.slow_oam_link_event->event_running_total)));
|
|
break;
|
|
|
|
case SLOW_OAM_LINK_EVENT_ORG_SPECIFIC:
|
|
hexdump = TRUE;
|
|
break;
|
|
|
|
default:
|
|
hexdump = TRUE;
|
|
break;
|
|
}
|
|
|
|
/* infinite loop check */
|
|
if (!ptr.slow_oam_tlv_header->length) {
|
|
return;
|
|
}
|
|
|
|
/* do we also want to see a hex dump ? */
|
|
if (ndo->ndo_vflag > 1 || hexdump==TRUE) {
|
|
print_unknown_data(ndo, tptr, "\n\t ",
|
|
ptr.slow_oam_tlv_header->length);
|
|
}
|
|
|
|
tlen -= ptr.slow_oam_tlv_header->length;
|
|
tptr += ptr.slow_oam_tlv_header->length;
|
|
}
|
|
break;
|
|
|
|
case SLOW_OAM_CODE_LOOPBACK_CTRL:
|
|
tlv.slow_oam_loopbackctrl = (const struct slow_oam_loopbackctrl_t *)tptr;
|
|
ND_PRINT((ndo, "\n\t Command %s (%u)",
|
|
tok2str(slow_oam_loopbackctrl_cmd_values,
|
|
"Unknown",
|
|
tlv.slow_oam_loopbackctrl->command),
|
|
tlv.slow_oam_loopbackctrl->command));
|
|
tptr ++;
|
|
tlen --;
|
|
break;
|
|
|
|
/*
|
|
* FIXME those are the defined codes that lack a decoder
|
|
* you are welcome to contribute code ;-)
|
|
*/
|
|
case SLOW_OAM_CODE_VAR_REQUEST:
|
|
case SLOW_OAM_CODE_VAR_RESPONSE:
|
|
case SLOW_OAM_CODE_PRIVATE:
|
|
default:
|
|
if (ndo->ndo_vflag <= 1) {
|
|
print_unknown_data(ndo, tptr, "\n\t ", tlen);
|
|
}
|
|
break;
|
|
}
|
|
return;
|
|
}
|