X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/c56e09a204cc3b00c41845f1d3ea7693bcef7496..a890c4489fa1bcee9f455ee28d772bb1ccf590bf:/print-slow.c diff --git a/print-slow.c b/print-slow.c index 4038b9ec..2db3581e 100644 --- a/print-slow.c +++ b/print-slow.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 1998-2005 The TCPDUMP project + * 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 @@ -13,37 +13,32 @@ * 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 lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/tcpdump/print-slow.c,v 1.1 2005-07-10 14:41:34 hannes Exp $"; -#endif - +#define NETDISSECT_REWORKED #ifdef HAVE_CONFIG_H #include "config.h" #endif #include -#include -#include -#include - #include "interface.h" #include "extract.h" #include "addrtoname.h" #include "ether.h" +#include "oui.h" -struct slow_common_header { - u_int8_t proto_subtype; - u_int8_t version; +struct slow_common_header_t { + uint8_t proto_subtype; + uint8_t version; }; #define SLOW_PROTO_LACP 1 #define SLOW_PROTO_MARKER 2 +#define SLOW_PROTO_OAM 3 #define LACP_VERSION 1 #define MARKER_VERSION 1 @@ -51,12 +46,143 @@ struct slow_common_header { static 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 0xfe + +static 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 { + uint8_t info_type; + uint8_t info_length; + uint8_t oam_version; + uint8_t revision[2]; + uint8_t state; + uint8_t oam_config; + uint8_t oam_pdu_config[2]; + uint8_t oui[3]; + uint8_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 0xfe + +static 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 0x3 +static 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 0x4 +static 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 0xfe + +static 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 { + uint8_t event_type; + uint8_t event_length; + uint8_t time_stamp[2]; + uint8_t window[8]; + uint8_t threshold[8]; + uint8_t errors[8]; + uint8_t errors_running_total[8]; + uint8_t event_running_total[4]; +}; + +struct slow_oam_variablerequest_t { + uint8_t branch; + uint8_t leaf[2]; +}; + +struct slow_oam_variableresponse_t { + uint8_t branch; + uint8_t leaf[2]; + uint8_t length; +}; + +struct slow_oam_loopbackctrl_t { + uint8_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; + uint8_t type; + uint8_t length; }; #define LACP_TLV_TERMINATOR 0x00 @@ -79,14 +205,14 @@ static const struct tok slow_tlv_values[] = { }; 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]; -}; + uint8_t sys_pri[2]; + uint8_t sys[ETHER_ADDR_LEN]; + uint8_t key[2]; + uint8_t port_pri[2]; + uint8_t port[2]; + uint8_t state; + uint8_t pad[3]; +}; static const struct tok lacp_tlv_actor_partner_info_state_values[] = { { 0x01, "Activity"}, @@ -101,85 +227,143 @@ static const struct tok lacp_tlv_actor_partner_info_state_values[] = { }; struct lacp_tlv_collector_info_t { - u_int8_t max_delay[2]; - u_int8_t pad[12]; -}; + uint8_t max_delay[2]; + uint8_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]; -}; + uint8_t req_port[2]; + uint8_t req_sys[ETHER_ADDR_LEN]; + uint8_t req_trans_id[4]; + uint8_t pad[2]; +}; struct lacp_marker_tlv_terminator_t { - u_int8_t pad[50]; -}; + uint8_t pad[50]; +}; -void -slow_print(register const u_char *pptr, register u_int len) { +static void slow_marker_lacp_print(netdissect_options *, register const u_char *, register u_int); +static void slow_oam_print(netdissect_options *, register const u_char *, register u_int); - const struct slow_common_header *slow_com_header; - const struct tlv_header_t *tlv_header; - const u_char *tptr,*tlv_tptr; - u_int tlv_len,tlen,tlv_tlen; +const struct slow_common_header_t *slow_com_header; - union { - const struct lacp_marker_tlv_terminator_t *lacp_marker_tlv_terminator; - const struct lacp_tlv_actor_partner_info_t *lacp_tlv_actor_partner_info; - const struct lacp_tlv_collector_info_t *lacp_tlv_collector_info; - const struct marker_tlv_marker_info_t *marker_tlv_marker_info; - } tlv_ptr; +void +slow_print(netdissect_options *ndo, + register const u_char *pptr, register u_int len) +{ + int print_version; - tptr=pptr; - slow_com_header = (const struct slow_common_header *)pptr; - TCHECK(*slow_com_header); + slow_com_header = (const struct slow_common_header_t *)pptr; + ND_TCHECK(*slow_com_header); /* * Sanity checking of the header. */ - if (slow_com_header->proto_subtype == SLOW_PROTO_LACP && - slow_com_header->version != LACP_VERSION) { - printf("LACP version %u packet not supported",slow_com_header->version); - return; + switch (slow_com_header->proto_subtype) { + case SLOW_PROTO_LACP: + if (slow_com_header->version != LACP_VERSION) { + ND_PRINT((ndo, "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) { + ND_PRINT((ndo, "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 (slow_com_header->proto_subtype == SLOW_PROTO_MARKER && - slow_com_header->version != MARKER_VERSION) { - printf("MARKER version %u packet not supported",slow_com_header->version); - return; + + if (print_version) { + ND_PRINT((ndo, "%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 */ + ND_PRINT((ndo, "%s, length %u", + tok2str(slow_proto_values, "unknown (%u)",slow_com_header->proto_subtype), + len)); } - printf("%sv%u, length: %u", - tok2str(slow_proto_values, "unknown (%u)",slow_com_header->proto_subtype), - slow_com_header->version, - len); + /* unrecognized subtype */ + if (print_version == -1) { + print_unknown_data(ndo, pptr, "\n\t", len); + return; + } - if (!vflag) + if (!ndo->ndo_vflag) return; - /* ok they seem to want to know everything - lets fully decode it */ - tlen=len-sizeof(struct slow_common_header); - tptr+=sizeof(const struct slow_common_header); + switch (slow_com_header->proto_subtype) { + default: /* should not happen */ + break; + + case SLOW_PROTO_OAM: + /* skip proto_subtype */ + slow_oam_print(ndo, 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(ndo, pptr, len); + break; + } + return; + +trunc: + ND_PRINT((ndo, "\n\t\t packet exceeded snapshot")); +} + +static void +slow_marker_lacp_print(netdissect_options *ndo, + register const u_char *tptr, register u_int tlen) +{ + const struct tlv_header_t *tlv_header; + const u_char *tlv_tptr; + u_int tlv_len, tlv_tlen; + + union { + const struct lacp_marker_tlv_terminator_t *lacp_marker_tlv_terminator; + const struct lacp_tlv_actor_partner_info_t *lacp_tlv_actor_partner_info; + const struct lacp_tlv_collector_info_t *lacp_tlv_collector_info; + const struct marker_tlv_marker_info_t *marker_tlv_marker_info; + } tlv_ptr; while(tlen>0) { /* did we capture enough for fully decoding the tlv header ? */ - TCHECK2(*tptr, sizeof(struct tlv_header_t)); + ND_TCHECK2(*tptr, sizeof(struct tlv_header_t)); tlv_header = (const struct tlv_header_t *)tptr; tlv_len = tlv_header->length; - printf("\n\t%s TLV (0x%02x), length: %u", + ND_PRINT((ndo, "\n\t%s TLV (0x%02x), length %u", tok2str(slow_tlv_values, "Unknown", (slow_com_header->proto_subtype << 8) + tlv_header->type), tlv_header->type, - tlv_len); + tlv_len)); if ((tlv_len < sizeof(struct tlv_header_t) || tlv_len > tlen) && tlv_header->type != LACP_TLV_TERMINATOR && tlv_header->type != MARKER_TLV_TERMINATOR) { - printf("\n\t-----trailing data-----"); - print_unknown_data(tptr+sizeof(sizeof(struct tlv_header_t)),"\n\t ",tlen); + ND_PRINT((ndo, "\n\t-----trailing data-----")); + print_unknown_data(ndo, tptr+sizeof(struct tlv_header_t), "\n\t ", tlen); return; } @@ -187,7 +371,7 @@ slow_print(register const u_char *pptr, register u_int len) { tlv_tlen=tlv_len-sizeof(struct tlv_header_t); /* did we capture enough for fully decoding the tlv ? */ - TCHECK2(*tptr, tlv_len); + ND_TCHECK2(*tptr, tlv_len); switch((slow_com_header->proto_subtype << 8) + tlv_header->type) { @@ -196,34 +380,34 @@ slow_print(register const u_char *pptr, register u_int len) { case ((SLOW_PROTO_LACP << 8) + LACP_TLV_PARTNER_INFO): tlv_ptr.lacp_tlv_actor_partner_info = (const struct lacp_tlv_actor_partner_info_t *)tlv_tptr; - printf("\n\t System %s, System Priority %u, Key %u" \ + ND_PRINT((ndo, "\n\t System %s, System Priority %u, Key %u" \ ", Port %u, Port Priority %u\n\t State Flags [%s]", - etheraddr_string(tlv_ptr.lacp_tlv_actor_partner_info->sys), + etheraddr_string(ndo, tlv_ptr.lacp_tlv_actor_partner_info->sys), EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->sys_pri), EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->key), EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->port), EXTRACT_16BITS(tlv_ptr.lacp_tlv_actor_partner_info->port_pri), bittok2str(lacp_tlv_actor_partner_info_state_values, "none", - tlv_ptr.lacp_tlv_actor_partner_info->state)); + tlv_ptr.lacp_tlv_actor_partner_info->state))); break; case ((SLOW_PROTO_LACP << 8) + LACP_TLV_COLLECTOR_INFO): tlv_ptr.lacp_tlv_collector_info = (const struct lacp_tlv_collector_info_t *)tlv_tptr; - printf("\n\t Max Delay %u", - EXTRACT_16BITS(tlv_ptr.lacp_tlv_collector_info->max_delay)); + ND_PRINT((ndo, "\n\t Max Delay %u", + EXTRACT_16BITS(tlv_ptr.lacp_tlv_collector_info->max_delay))); break; case ((SLOW_PROTO_MARKER << 8) + MARKER_TLV_MARKER_INFO): tlv_ptr.marker_tlv_marker_info = (const struct marker_tlv_marker_info_t *)tlv_tptr; - printf("\n\t Request System %s, Request Port %u, Request Transaction ID 0x%08x", - etheraddr_string(tlv_ptr.marker_tlv_marker_info->req_sys), + ND_PRINT((ndo, "\n\t Request System %s, Request Port %u, Request Transaction ID 0x%08x", + etheraddr_string(ndo, tlv_ptr.marker_tlv_marker_info->req_sys), EXTRACT_16BITS(tlv_ptr.marker_tlv_marker_info->req_port), - EXTRACT_32BITS(tlv_ptr.marker_tlv_marker_info->req_trans_id)); + EXTRACT_32BITS(tlv_ptr.marker_tlv_marker_info->req_trans_id))); break; @@ -235,30 +419,240 @@ slow_print(register const u_char *pptr, register u_int len) { tlv_len = sizeof(tlv_ptr.lacp_marker_tlv_terminator->pad) + sizeof(struct tlv_header_t); /* tell the user that we modified the length field */ - if (vflag>1) - printf(" (=%u)",tlv_len); + if (ndo->ndo_vflag>1) + ND_PRINT((ndo, " (=%u)", tlv_len)); /* we have messed around with the length field - now we need to check * again if there are enough bytes on the wire for the hexdump */ - TCHECK2(tlv_ptr.lacp_marker_tlv_terminator->pad[0], + ND_TCHECK2(tlv_ptr.lacp_marker_tlv_terminator->pad[0], sizeof(tlv_ptr.lacp_marker_tlv_terminator->pad)); } break; default: - if (vflag <= 1) - print_unknown_data(tlv_tptr,"\n\t ",tlv_tlen); + if (ndo->ndo_vflag <= 1) + print_unknown_data(ndo, tlv_tptr, "\n\t ", tlv_tlen); break; } - /* do we want to see an additionally hexdump ? */ - if (vflag > 1) - print_unknown_data(tptr+sizeof(sizeof(struct tlv_header_t)),"\n\t ", + /* do we want to see an additional hexdump ? */ + if (ndo->ndo_vflag > 1) { + print_unknown_data(ndo, tptr+sizeof(struct tlv_header_t), "\n\t ", tlv_len-sizeof(struct tlv_header_t)); + } tptr+=tlv_len; tlen-=tlv_len; } return; trunc: - printf("\n\t\t packet exceeded snapshot"); + ND_PRINT((ndo, "\n\t\t packet exceeded snapshot")); +} + +static void +slow_oam_print(netdissect_options *ndo, + register const u_char *tptr, register u_int tlen) +{ + u_int hexdump; + + struct slow_oam_common_header_t { + uint8_t flags[2]; + uint8_t code; + }; + + 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; }