diff options
Diffstat (limited to 'freebsd/contrib/tcpdump/print-slow.c')
| -rw-r--r-- | freebsd/contrib/tcpdump/print-slow.c | 663 |
1 files changed, 663 insertions, 0 deletions
diff --git a/freebsd/contrib/tcpdump/print-slow.c b/freebsd/contrib/tcpdump/print-slow.c new file mode 100644 index 00000000..f4430887 --- /dev/null +++ b/freebsd/contrib/tcpdump/print-slow.c @@ -0,0 +1,663 @@ +#include <machine/rtems-bsd-user-space.h> + +/* + * 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 lint +static 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 1 + +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 { + 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 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 { + 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 0x01 + +static 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; + +void +slow_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); + break; + } + return; + +trunc: + printf("\n\t\t packet exceeded snapshot"); +} + +void slow_marker_lacp_print(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)); + tlv_header = (const struct tlv_header_t *)tptr; + tlv_len = tlv_header->length; + + printf("\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); + + 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(struct tlv_header_t),"\n\t ",tlen); + return; + } + + tlv_tptr=tptr+sizeof(struct tlv_header_t); + tlv_tlen=tlv_len-sizeof(struct tlv_header_t); + + /* did we capture enough for fully decoding the tlv ? */ + TCHECK2(*tptr, tlv_len); + + switch((slow_com_header->proto_subtype << 8) + tlv_header->type) { + + /* those two TLVs have the same structure -> fall through */ + case ((SLOW_PROTO_LACP << 8) + LACP_TLV_ACTOR_INFO): + 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" \ + ", Port %u, Port Priority %u\n\t State Flags [%s]", + etheraddr_string(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)); + + 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)); + + 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), + EXTRACT_16BITS(tlv_ptr.marker_tlv_marker_info->req_port), + EXTRACT_32BITS(tlv_ptr.marker_tlv_marker_info->req_trans_id)); + + break; + + /* those two TLVs have the same structure -> fall through */ + case ((SLOW_PROTO_LACP << 8) + LACP_TLV_TERMINATOR): + case ((SLOW_PROTO_MARKER << 8) + LACP_TLV_TERMINATOR): + tlv_ptr.lacp_marker_tlv_terminator = (const struct lacp_marker_tlv_terminator_t *)tlv_tptr; + if (tlv_len == 0) { + 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); + /* 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], + sizeof(tlv_ptr.lacp_marker_tlv_terminator->pad)); + } + + break; + + default: + if (vflag <= 1) + print_unknown_data(tlv_tptr,"\n\t ",tlv_tlen); + break; + } + /* do we want to see an additional hexdump ? */ + if (vflag > 1) { + print_unknown_data(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"); +} + +void slow_oam_print(register const u_char *tptr, register u_int tlen) { + + u_int hexdump; + + struct slow_oam_common_header_t { + u_int8_t flags[2]; + u_int8_t code; + }; + + struct slow_oam_tlv_header_t { + u_int8_t type; + u_int8_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); + + printf("\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; + printf("\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) { + printf("\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)) { + printf("\n\t ERROR: illegal length - should be %lu", + (unsigned long) sizeof(struct slow_oam_info_t)); + return; + } + + printf("\n\t OAM-Version %u, Revision %u", + tlv.slow_oam_info->oam_version, + EXTRACT_16BITS(&tlv.slow_oam_info->revision)); + + printf("\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)); + printf("\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); + printf("\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 (vflag > 1 || hexdump==TRUE) { + print_unknown_data(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; + printf("\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) { + printf("\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)) { + printf("\n\t ERROR: illegal length - should be %lu", + (unsigned long) sizeof(struct slow_oam_link_event_t)); + return; + } + + printf("\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 (vflag > 1 || hexdump==TRUE) { + print_unknown_data(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; + printf("\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 (vflag <= 1) { + print_unknown_data(tptr,"\n\t ", tlen); + } + break; + } + return; +} |