/* * Copyright (c) 1998-2006 The TCPDUMP project * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code * distributions retain the above copyright notice and this paragraph * in its entirety, and (2) distributions including binary code include * the above copyright notice and this paragraph in its entirety in * the documentation or other materials provided with the distribution. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE. * * support for the IEEE "slow protocols" LACP, MARKER as per 802.3ad *                                       OAM as per 802.3ah * * Original code by Hannes Gredler (hannes@juniper.net) */#ifndef lintstatic const char rcsid[] _U_ =    "@(#) $Header: /tcpdump/master/tcpdump/print-slow.c,v 1.8 2006-10-12 05:44:33 hannes Exp $";#endif#ifdef HAVE_CONFIG_H#include "config.h"#endif#include <tcpdump-stdinc.h>#include <stdio.h>#include <stdlib.h>#include <string.h>#include "interface.h"#include "extract.h"#include "addrtoname.h"#include "ether.h"#include "oui.h"struct slow_common_header_t {    u_int8_t proto_subtype;    u_int8_t version;};#define	SLOW_PROTO_LACP                     1#define	SLOW_PROTO_MARKER                   2#define SLOW_PROTO_OAM                      3#define	LACP_VERSION                        1#define	MARKER_VERSION                      1static const struct tok slow_proto_values[] = {    { SLOW_PROTO_LACP, "LACP" },    { SLOW_PROTO_MARKER, "MARKER" },    { SLOW_PROTO_OAM, "OAM" },    { 0, NULL}};static const struct tok slow_oam_flag_values[] = {    { 0x0001, "Link Fault" },    { 0x0002, "Dying Gasp" },    { 0x0004, "Critical Event" },    { 0x0008, "Local Evaluating" },    { 0x0010, "Local Stable" },    { 0x0020, "Remote Evaluating" },    { 0x0040, "Remote Stable" },    { 0, NULL}}; #define SLOW_OAM_CODE_INFO          0x00#define SLOW_OAM_CODE_EVENT_NOTIF   0x01#define SLOW_OAM_CODE_VAR_REQUEST   0x02#define SLOW_OAM_CODE_VAR_RESPONSE  0x03#define SLOW_OAM_CODE_LOOPBACK_CTRL 0x04#define SLOW_OAM_CODE_PRIVATE       0xfestatic const struct tok slow_oam_code_values[] = {    { SLOW_OAM_CODE_INFO, "Information" },    { SLOW_OAM_CODE_EVENT_NOTIF, "Event Notification" },    { SLOW_OAM_CODE_VAR_REQUEST, "Variable Request" },    { SLOW_OAM_CODE_VAR_RESPONSE, "Variable Response" },    { SLOW_OAM_CODE_LOOPBACK_CTRL, "Loopback Control" },    { SLOW_OAM_CODE_PRIVATE, "Vendor Private" },    { 0, NULL}};struct slow_oam_info_t {    u_int8_t info_type;    u_int8_t info_length;    u_int8_t oam_version;    u_int8_t revision[2];    u_int8_t state;    u_int8_t oam_config;    u_int8_t oam_pdu_config[2];    u_int8_t oui[3];    u_int8_t vendor_private[4];};#define SLOW_OAM_INFO_TYPE_END_OF_TLV 0x00#define SLOW_OAM_INFO_TYPE_LOCAL 0x01#define SLOW_OAM_INFO_TYPE_REMOTE 0x02#define SLOW_OAM_INFO_TYPE_ORG_SPECIFIC 0xfestatic const struct tok slow_oam_info_type_values[] = {    { SLOW_OAM_INFO_TYPE_END_OF_TLV, "End of TLV marker" },    { SLOW_OAM_INFO_TYPE_LOCAL, "Local" },    { SLOW_OAM_INFO_TYPE_REMOTE, "Remote" },    { SLOW_OAM_INFO_TYPE_ORG_SPECIFIC, "Organization specific" },    { 0, NULL}};#define OAM_INFO_TYPE_PARSER_MASK 0x3static const struct tok slow_oam_info_type_state_parser_values[] = {    { 0x00, "forwarding" },    { 0x01, "looping back" },    { 0x02, "discarding" },    { 0x03, "reserved" },    { 0, NULL}};#define OAM_INFO_TYPE_MUX_MASK 0x4static const struct tok slow_oam_info_type_state_mux_values[] = {    { 0x00, "forwarding" },    { 0x04, "discarding" },    { 0, NULL}};static const struct tok slow_oam_info_type_oam_config_values[] = {    { 0x01, "Active" },    { 0x02, "Unidirectional" },    { 0x04, "Remote-Loopback" },    { 0x08, "Link-Events" },    { 0x10, "Variable-Retrieval" },    { 0, NULL}};/* 11 Bits */#define OAM_INFO_TYPE_PDU_SIZE_MASK 0x7ff#define SLOW_OAM_LINK_EVENT_END_OF_TLV 0x00#define SLOW_OAM_LINK_EVENT_ERR_SYM_PER 0x01#define SLOW_OAM_LINK_EVENT_ERR_FRM 0x02#define SLOW_OAM_LINK_EVENT_ERR_FRM_PER 0x03#define SLOW_OAM_LINK_EVENT_ERR_FRM_SUMM 0x04#define SLOW_OAM_LINK_EVENT_ORG_SPECIFIC 0xfestatic const struct tok slow_oam_link_event_values[] = {    { SLOW_OAM_LINK_EVENT_END_OF_TLV, "End of TLV marker" },    { SLOW_OAM_LINK_EVENT_ERR_SYM_PER, "Errored Symbol Period Event" },    { SLOW_OAM_LINK_EVENT_ERR_FRM, "Errored Frame Event" },    { SLOW_OAM_LINK_EVENT_ERR_FRM_PER, "Errored Frame Period Event" },    { SLOW_OAM_LINK_EVENT_ERR_FRM_SUMM, "Errored Frame Seconds Summary Event" },    { SLOW_OAM_LINK_EVENT_ORG_SPECIFIC, "Organization specific" },    { 0, NULL}};struct slow_oam_link_event_t {    u_int8_t event_type;    u_int8_t event_length;    u_int8_t time_stamp[2];    u_int8_t window[8];    u_int8_t threshold[8];    u_int8_t errors[8];    u_int8_t errors_running_total[8];    u_int8_t event_running_total[4];};struct slow_oam_variablerequest_t {    u_int8_t branch;    u_int8_t leaf[2];};struct slow_oam_variableresponse_t {    u_int8_t branch;    u_int8_t leaf[2];    u_int8_t length;};struct slow_oam_loopbackctrl_t {    u_int8_t command;};static const struct tok slow_oam_loopbackctrl_cmd_values[] = {    { 0x01, "Enable OAM Remote Loopback" },    { 0x02, "Disable OAM Remote Loopback" },    { 0, NULL}};struct tlv_header_t {    u_int8_t type;    u_int8_t length;};#define LACP_TLV_TERMINATOR     0x00#define LACP_TLV_ACTOR_INFO     0x01#define LACP_TLV_PARTNER_INFO   0x02#define LACP_TLV_COLLECTOR_INFO 0x03#define MARKER_TLV_TERMINATOR   0x00#define MARKER_TLV_MARKER_INFO  0x01static const struct tok slow_tlv_values[] = {    { (SLOW_PROTO_LACP << 8) + LACP_TLV_TERMINATOR, "Terminator"},    { (SLOW_PROTO_LACP << 8) + LACP_TLV_ACTOR_INFO, "Actor Information"},    { (SLOW_PROTO_LACP << 8) + LACP_TLV_PARTNER_INFO, "Partner Information"},    { (SLOW_PROTO_LACP << 8) + LACP_TLV_COLLECTOR_INFO, "Collector Information"},    { (SLOW_PROTO_MARKER << 8) + MARKER_TLV_TERMINATOR, "Terminator"},    { (SLOW_PROTO_MARKER << 8) + MARKER_TLV_MARKER_INFO, "Marker Information"},    { 0, NULL}};struct lacp_tlv_actor_partner_info_t {    u_int8_t sys_pri[2];    u_int8_t sys[ETHER_ADDR_LEN];    u_int8_t key[2];    u_int8_t port_pri[2];    u_int8_t port[2];    u_int8_t state;    u_int8_t pad[3];};          static const struct tok lacp_tlv_actor_partner_info_state_values[] = {    { 0x01, "Activity"},    { 0x02, "Timeout"},    { 0x04, "Aggregation"},    { 0x08, "Synchronization"},    { 0x10, "Collecting"},    { 0x20, "Distributing"},    { 0x40, "Default"},    { 0x80, "Expired"},    { 0, NULL}};struct lacp_tlv_collector_info_t {    u_int8_t max_delay[2];    u_int8_t pad[12];}; struct marker_tlv_marker_info_t {    u_int8_t req_port[2];    u_int8_t req_sys[ETHER_ADDR_LEN];    u_int8_t req_trans_id[4];    u_int8_t pad[2];}; struct lacp_marker_tlv_terminator_t {    u_int8_t pad[50];}; void slow_marker_lacp_print(register const u_char *, register u_int);void slow_oam_print(register const u_char *, register u_int);const struct slow_common_header_t *slow_com_header;voidslow_print(register const u_char *pptr, register u_int len) {    int print_version;    slow_com_header = (const struct slow_common_header_t *)pptr;    TCHECK(*slow_com_header);    /*     * Sanity checking of the header.     */    switch (slow_com_header->proto_subtype) {    case SLOW_PROTO_LACP:        if (slow_com_header->version != LACP_VERSION) {            printf("LACP version %u packet not supported",slow_com_header->version);            return;        }        print_version = 1;        break;    case SLOW_PROTO_MARKER:        if (slow_com_header->version != MARKER_VERSION) {            printf("MARKER version %u packet not supported",slow_com_header->version);            return;        }        print_version = 1;        break;    case SLOW_PROTO_OAM: /* fall through */        print_version = 0;        break;    default:        /* print basic information and exit */        print_version = -1;        break;    }    if (print_version) {        printf("%sv%u, length %u",               tok2str(slow_proto_values, "unknown (%u)",slow_com_header->proto_subtype),               slow_com_header->version,               len);    } else {        /* some slow protos don't have a version number in the header */        printf("%s, length %u",               tok2str(slow_proto_values, "unknown (%u)",slow_com_header->proto_subtype),               len);    }    /* unrecognized subtype */    if (print_version == -1) {        print_unknown_data(pptr, "\n\t", len);        return;    }    if (!vflag)        return;    switch (slow_com_header->proto_subtype) {    default: /* should not happen */        break;    case SLOW_PROTO_OAM:        /* skip proto_subtype */        slow_oam_print(pptr+1, len-1);        break;    case SLOW_PROTO_LACP:   /* LACP and MARKER share the same semantics */    case SLOW_PROTO_MARKER:        /* skip slow_common_header */        len -= sizeof(const struct slow_common_header_t);        pptr += sizeof(const struct slow_common_header_t);        slow_marker_lacp_print(pptr, len);