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Diffstat (limited to '')
| -rw-r--r-- | print-lmp.c | 1137 |
1 files changed, 1137 insertions, 0 deletions
diff --git a/print-lmp.c b/print-lmp.c new file mode 100644 index 0000000..925f3b0 --- /dev/null +++ b/print-lmp.c @@ -0,0 +1,1137 @@ +/* + * 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. + * + * Original code by Hannes Gredler (hannes@gredler.at) + * Support for LMP service discovery extensions (defined by OIF UNI 1.0) + * added by Manu Pathak (mapathak@cisco.com), May 2005 + */ + +/* \summary: Link Management Protocol (LMP) printer */ + +/* specification: RFC 4204 */ +/* OIF UNI 1.0: https://web.archive.org/web/20160401194747/http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "netdissect-stdinc.h" + +#define ND_LONGJMP_FROM_TCHECK +#include "netdissect.h" +#include "extract.h" +#include "addrtoname.h" +#include "gmpls.h" + + +/* + * LMP common header + * + * 0 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Vers | (Reserved) | Flags | Msg Type | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | LMP Length | (Reserved) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +struct lmp_common_header { + nd_uint16_t version_res; + nd_uint8_t flags; + nd_uint8_t msg_type; + nd_uint16_t length; + nd_byte reserved[2]; +}; + +#define LMP_VERSION 1 +#define LMP_EXTRACT_VERSION(x) (((x)&0xf000)>>12) + +static const struct tok lmp_header_flag_values[] = { + { 0x01, "Control Channel Down"}, + { 0x02, "LMP restart"}, + { 0, NULL} +}; + +static const struct tok lmp_obj_te_link_flag_values[] = { + { 0x01, "Fault Management Supported"}, + { 0x02, "Link Verification Supported"}, + { 0, NULL} +}; + +static const struct tok lmp_obj_data_link_flag_values[] = { + { 0x01, "Data Link Port"}, + { 0x02, "Allocated for user traffic"}, + { 0x04, "Failed link"}, + { 0, NULL} +}; + +static const struct tok lmp_obj_channel_status_values[] = { + { 1, "Signal Okay"}, + { 2, "Signal Degraded"}, + { 3, "Signal Fail"}, + { 0, NULL} +}; + +static const struct tok lmp_obj_begin_verify_flag_values[] = { + { 0x0001, "Verify all links"}, + { 0x0002, "Data link type"}, + { 0, NULL} +}; + +static const struct tok lmp_obj_begin_verify_error_values[] = { + { 0x01, "Link Verification Procedure Not supported"}, + { 0x02, "Unwilling to verify"}, + { 0x04, "Unsupported verification transport mechanism"}, + { 0x08, "Link-Id configuration error"}, + { 0x10, "Unknown object c-type"}, + { 0, NULL} +}; + +static const struct tok lmp_obj_link_summary_error_values[] = { + { 0x01, "Unacceptable non-negotiable LINK-SUMMARY parameters"}, + { 0x02, "Renegotiate LINK-SUMMARY parameters"}, + { 0x04, "Invalid TE-LINK Object"}, + { 0x08, "Invalid DATA-LINK Object"}, + { 0x10, "Unknown TE-LINK Object c-type"}, + { 0x20, "Unknown DATA-LINK Object c-type"}, + { 0, NULL} +}; + +/* Service Config Supported Protocols Flags */ +static const struct tok lmp_obj_service_config_sp_flag_values[] = { + { 0x01, "RSVP Supported"}, + { 0x02, "LDP Supported"}, + { 0, NULL} +}; + +/* Service Config Client Port Service Attribute Transparency Flags */ +static const struct tok lmp_obj_service_config_cpsa_tp_flag_values[] = { + { 0x01, "Path/VC Overhead Transparency Supported"}, + { 0x02, "Line/MS Overhead Transparency Supported"}, + { 0x04, "Section/RS Overhead Transparency Supported"}, + { 0, NULL} +}; + +/* Service Config Client Port Service Attribute Contiguous Concatenation Types Flags */ +static const struct tok lmp_obj_service_config_cpsa_cct_flag_values[] = { + { 0x01, "Contiguous Concatenation Types Supported"}, + { 0, NULL} +}; + +/* Service Config Network Service Attributes Transparency Flags */ +static const struct tok lmp_obj_service_config_nsa_transparency_flag_values[] = { + { 0x01, "Standard SOH/RSOH Transparency Supported"}, + { 0x02, "Standard LOH/MSOH Transparency Supported"}, + { 0, NULL} +}; + +/* Service Config Network Service Attributes TCM Monitoring Flags */ +static const struct tok lmp_obj_service_config_nsa_tcm_flag_values[] = { + { 0x01, "Transparent Tandem Connection Monitoring Supported"}, + { 0, NULL} +}; + +/* Network Service Attributes Network Diversity Flags */ +static const struct tok lmp_obj_service_config_nsa_network_diversity_flag_values[] = { + { 0x01, "Node Diversity Supported"}, + { 0x02, "Link Diversity Supported"}, + { 0x04, "SRLG Diversity Supported"}, + { 0, NULL} +}; + +#define LMP_MSGTYPE_CONFIG 1 +#define LMP_MSGTYPE_CONFIG_ACK 2 +#define LMP_MSGTYPE_CONFIG_NACK 3 +#define LMP_MSGTYPE_HELLO 4 +#define LMP_MSGTYPE_VERIFY_BEGIN 5 +#define LMP_MSGTYPE_VERIFY_BEGIN_ACK 6 +#define LMP_MSGTYPE_VERIFY_BEGIN_NACK 7 +#define LMP_MSGTYPE_VERIFY_END 8 +#define LMP_MSGTYPE_VERIFY_END_ACK 9 +#define LMP_MSGTYPE_TEST 10 +#define LMP_MSGTYPE_TEST_STATUS_SUCCESS 11 +#define LMP_MSGTYPE_TEST_STATUS_FAILURE 12 +#define LMP_MSGTYPE_TEST_STATUS_ACK 13 +#define LMP_MSGTYPE_LINK_SUMMARY 14 +#define LMP_MSGTYPE_LINK_SUMMARY_ACK 15 +#define LMP_MSGTYPE_LINK_SUMMARY_NACK 16 +#define LMP_MSGTYPE_CHANNEL_STATUS 17 +#define LMP_MSGTYPE_CHANNEL_STATUS_ACK 18 +#define LMP_MSGTYPE_CHANNEL_STATUS_REQ 19 +#define LMP_MSGTYPE_CHANNEL_STATUS_RESP 20 +/* LMP Service Discovery message types defined by UNI 1.0 */ +#define LMP_MSGTYPE_SERVICE_CONFIG 50 +#define LMP_MSGTYPE_SERVICE_CONFIG_ACK 51 +#define LMP_MSGTYPE_SERVICE_CONFIG_NACK 52 + +static const struct tok lmp_msg_type_values[] = { + { LMP_MSGTYPE_CONFIG, "Config"}, + { LMP_MSGTYPE_CONFIG_ACK, "Config ACK"}, + { LMP_MSGTYPE_CONFIG_NACK, "Config NACK"}, + { LMP_MSGTYPE_HELLO, "Hello"}, + { LMP_MSGTYPE_VERIFY_BEGIN, "Begin Verify"}, + { LMP_MSGTYPE_VERIFY_BEGIN_ACK, "Begin Verify ACK"}, + { LMP_MSGTYPE_VERIFY_BEGIN_NACK, "Begin Verify NACK"}, + { LMP_MSGTYPE_VERIFY_END, "End Verify"}, + { LMP_MSGTYPE_VERIFY_END_ACK, "End Verify ACK"}, + { LMP_MSGTYPE_TEST, "Test"}, + { LMP_MSGTYPE_TEST_STATUS_SUCCESS, "Test Status Success"}, + { LMP_MSGTYPE_TEST_STATUS_FAILURE, "Test Status Failure"}, + { LMP_MSGTYPE_TEST_STATUS_ACK, "Test Status ACK"}, + { LMP_MSGTYPE_LINK_SUMMARY, "Link Summary"}, + { LMP_MSGTYPE_LINK_SUMMARY_ACK, "Link Summary ACK"}, + { LMP_MSGTYPE_LINK_SUMMARY_NACK, "Link Summary NACK"}, + { LMP_MSGTYPE_CHANNEL_STATUS, "Channel Status"}, + { LMP_MSGTYPE_CHANNEL_STATUS_ACK, "Channel Status ACK"}, + { LMP_MSGTYPE_CHANNEL_STATUS_REQ, "Channel Status Request"}, + { LMP_MSGTYPE_CHANNEL_STATUS_RESP, "Channel Status Response"}, + { LMP_MSGTYPE_SERVICE_CONFIG, "Service Config"}, + { LMP_MSGTYPE_SERVICE_CONFIG_ACK, "Service Config ACK"}, + { LMP_MSGTYPE_SERVICE_CONFIG_NACK, "Service Config NACK"}, + { 0, NULL} +}; + +/* + * LMP object header + * + * 0 1 2 3 + * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |N| C-Type | Class | Length | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | | + * // (object contents) // + * | | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + +struct lmp_object_header { + nd_uint8_t ctype; + nd_uint8_t class_num; + nd_uint16_t length; +}; + +#define LMP_OBJ_CC_ID 1 +#define LMP_OBJ_NODE_ID 2 +#define LMP_OBJ_LINK_ID 3 +#define LMP_OBJ_INTERFACE_ID 4 +#define LMP_OBJ_MESSAGE_ID 5 +#define LMP_OBJ_CONFIG 6 +#define LMP_OBJ_HELLO 7 +#define LMP_OBJ_VERIFY_BEGIN 8 +#define LMP_OBJ_VERIFY_BEGIN_ACK 9 +#define LMP_OBJ_VERIFY_ID 10 +#define LMP_OBJ_TE_LINK 11 +#define LMP_OBJ_DATA_LINK 12 +#define LMP_OBJ_CHANNEL_STATUS 13 +#define LMP_OBJ_CHANNEL_STATUS_REQ 14 +#define LMP_OBJ_ERROR_CODE 20 + +#define LMP_OBJ_SERVICE_CONFIG 51 /* defined in UNI 1.0 */ + +static const struct tok lmp_obj_values[] = { + { LMP_OBJ_CC_ID, "Control Channel ID" }, + { LMP_OBJ_NODE_ID, "Node ID" }, + { LMP_OBJ_LINK_ID, "Link ID" }, + { LMP_OBJ_INTERFACE_ID, "Interface ID" }, + { LMP_OBJ_MESSAGE_ID, "Message ID" }, + { LMP_OBJ_CONFIG, "Configuration" }, + { LMP_OBJ_HELLO, "Hello" }, + { LMP_OBJ_VERIFY_BEGIN, "Verify Begin" }, + { LMP_OBJ_VERIFY_BEGIN_ACK, "Verify Begin ACK" }, + { LMP_OBJ_VERIFY_ID, "Verify ID" }, + { LMP_OBJ_TE_LINK, "TE Link" }, + { LMP_OBJ_DATA_LINK, "Data Link" }, + { LMP_OBJ_CHANNEL_STATUS, "Channel Status" }, + { LMP_OBJ_CHANNEL_STATUS_REQ, "Channel Status Request" }, + { LMP_OBJ_ERROR_CODE, "Error Code" }, + { LMP_OBJ_SERVICE_CONFIG, "Service Config" }, + + { 0, NULL} +}; + +#define INT_SWITCHING_TYPE_SUBOBJ 1 +#define WAVELENGTH_SUBOBJ 2 + +static const struct tok lmp_data_link_subobj[] = { + { INT_SWITCHING_TYPE_SUBOBJ, "Interface Switching Type" }, + { WAVELENGTH_SUBOBJ , "Wavelength" }, + { 0, NULL} +}; + +#define LMP_CTYPE_IPV4 1 +#define LMP_CTYPE_IPV6 2 + +#define LMP_CTYPE_LOC 1 +#define LMP_CTYPE_RMT 2 +#define LMP_CTYPE_UNMD 3 + +#define LMP_CTYPE_IPV4_LOC 1 +#define LMP_CTYPE_IPV4_RMT 2 +#define LMP_CTYPE_IPV6_LOC 3 +#define LMP_CTYPE_IPV6_RMT 4 +#define LMP_CTYPE_UNMD_LOC 5 +#define LMP_CTYPE_UNMD_RMT 6 + +#define LMP_CTYPE_1 1 +#define LMP_CTYPE_2 2 + +#define LMP_CTYPE_HELLO_CONFIG 1 +#define LMP_CTYPE_HELLO 1 + +#define LMP_CTYPE_BEGIN_VERIFY_ERROR 1 +#define LMP_CTYPE_LINK_SUMMARY_ERROR 2 + +/* C-Types for Service Config Object */ +#define LMP_CTYPE_SERVICE_CONFIG_SP 1 +#define LMP_CTYPE_SERVICE_CONFIG_CPSA 2 +#define LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM 3 +#define LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY 4 + +/* + * Different link types allowed in the Client Port Service Attributes + * subobject defined for LMP Service Discovery in the UNI 1.0 spec + */ +#define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH 5 /* UNI 1.0 Sec 9.4.2 */ +#define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET 6 /* UNI 1.0 Sec 9.4.2 */ + +/* + * the ctypes are not globally unique so for + * translating it to strings we build a table based + * on objects offsetted by the ctype + */ + +static const struct tok lmp_ctype_values[] = { + { 256*LMP_OBJ_CC_ID+LMP_CTYPE_LOC, "Local" }, + { 256*LMP_OBJ_CC_ID+LMP_CTYPE_RMT, "Remote" }, + { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_LOC, "Local" }, + { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_RMT, "Remote" }, + { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" }, + { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" }, + { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" }, + { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" }, + { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" }, + { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" }, + { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" }, + { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" }, + { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" }, + { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" }, + { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" }, + { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" }, + { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_1, "1" }, + { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_2, "2" }, + { 256*LMP_OBJ_CONFIG+LMP_CTYPE_1, "1" }, + { 256*LMP_OBJ_HELLO+LMP_CTYPE_1, "1" }, + { 256*LMP_OBJ_VERIFY_BEGIN+LMP_CTYPE_1, "1" }, + { 256*LMP_OBJ_VERIFY_BEGIN_ACK+LMP_CTYPE_1, "1" }, + { 256*LMP_OBJ_VERIFY_ID+LMP_CTYPE_1, "1" }, + { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV4, "IPv4" }, + { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV6, "IPv6" }, + { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_UNMD, "Unnumbered" }, + { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV4, "IPv4" }, + { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV6, "IPv6" }, + { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_UNMD, "Unnumbered" }, + { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV4, "IPv4" }, + { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV6, "IPv6" }, + { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_UNMD, "Unnumbered" }, + { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV4, "IPv4" }, + { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV6, "IPv6" }, + { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_UNMD, "Unnumbered" }, + { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_1, "1" }, + { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_2, "2" }, + { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_SP, "1" }, + { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_CPSA, "2" }, + { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM, "3" }, + { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY, "4" }, + { 0, NULL} +}; + +static int +lmp_print_data_link_subobjs(netdissect_options *ndo, const u_char *obj_tptr, + int total_subobj_len, int offset) +{ + int hexdump = FALSE; + int subobj_type, subobj_len; + + union { /* int to float conversion buffer */ + float f; + uint32_t i; + } bw; + + while (total_subobj_len > 0 && hexdump == FALSE ) { + subobj_type = GET_U_1(obj_tptr + offset); + subobj_len = GET_U_1(obj_tptr + offset + 1); + ND_PRINT("\n\t Subobject, Type: %s (%u), Length: %u", + tok2str(lmp_data_link_subobj, + "Unknown", + subobj_type), + subobj_type, + subobj_len); + if (subobj_len < 4) { + ND_PRINT(" (too short)"); + break; + } + if ((subobj_len % 4) != 0) { + ND_PRINT(" (not a multiple of 4)"); + break; + } + if (total_subobj_len < subobj_len) { + ND_PRINT(" (goes past the end of the object)"); + break; + } + switch(subobj_type) { + case INT_SWITCHING_TYPE_SUBOBJ: + ND_PRINT("\n\t Switching Type: %s (%u)", + tok2str(gmpls_switch_cap_values, + "Unknown", + GET_U_1(obj_tptr + offset + 2)), + GET_U_1(obj_tptr + offset + 2)); + ND_PRINT("\n\t Encoding Type: %s (%u)", + tok2str(gmpls_encoding_values, + "Unknown", + GET_U_1(obj_tptr + offset + 3)), + GET_U_1(obj_tptr + offset + 3)); + bw.i = GET_BE_U_4(obj_tptr + offset + 4); + ND_PRINT("\n\t Min Reservable Bandwidth: %.3f Mbps", + bw.f*8/1000000); + bw.i = GET_BE_U_4(obj_tptr + offset + 8); + ND_PRINT("\n\t Max Reservable Bandwidth: %.3f Mbps", + bw.f*8/1000000); + break; + case WAVELENGTH_SUBOBJ: + ND_PRINT("\n\t Wavelength: %u", + GET_BE_U_4(obj_tptr + offset + 4)); + break; + default: + /* Any Unknown Subobject ==> Exit loop */ + hexdump=TRUE; + break; + } + total_subobj_len-=subobj_len; + offset+=subobj_len; + } + return (hexdump); +} + +void +lmp_print(netdissect_options *ndo, + const u_char *pptr, u_int length) +{ + const struct lmp_common_header *lmp_com_header; + const u_char *tptr,*obj_tptr; + u_int version_res, tlen, lmp_obj_len, lmp_obj_ctype, obj_tlen; + int hexdump; + u_int offset; + u_int link_type; + + union { /* int to float conversion buffer */ + float f; + uint32_t i; + } bw; + + ndo->ndo_protocol = "lmp"; + tptr=pptr; + lmp_com_header = (const struct lmp_common_header *)pptr; + ND_TCHECK_SIZE(lmp_com_header); + + version_res = GET_BE_U_2(lmp_com_header->version_res); + + /* + * Sanity checking of the header. + */ + if (LMP_EXTRACT_VERSION(version_res) != LMP_VERSION) { + ND_PRINT("LMP version %u packet not supported", + LMP_EXTRACT_VERSION(version_res)); + return; + } + + /* in non-verbose mode just lets print the basic Message Type*/ + if (ndo->ndo_vflag < 1) { + ND_PRINT("LMPv%u %s Message, length: %u", + LMP_EXTRACT_VERSION(version_res), + tok2str(lmp_msg_type_values, "unknown (%u)",GET_U_1(lmp_com_header->msg_type)), + length); + return; + } + + /* ok they seem to want to know everything - lets fully decode it */ + + tlen=GET_BE_U_2(lmp_com_header->length); + + ND_PRINT("\n\tLMPv%u, msg-type: %s, Flags: [%s], length: %u", + LMP_EXTRACT_VERSION(version_res), + tok2str(lmp_msg_type_values, "unknown, type: %u",GET_U_1(lmp_com_header->msg_type)), + bittok2str(lmp_header_flag_values,"none",GET_U_1(lmp_com_header->flags)), + tlen); + if (tlen < sizeof(struct lmp_common_header)) { + ND_PRINT(" (too short)"); + return; + } + if (tlen > length) { + ND_PRINT(" (too long)"); + tlen = length; + } + + tptr+=sizeof(struct lmp_common_header); + tlen-=sizeof(struct lmp_common_header); + + while(tlen>0) { + const struct lmp_object_header *lmp_obj_header = + (const struct lmp_object_header *)tptr; + lmp_obj_len=GET_BE_U_2(lmp_obj_header->length); + lmp_obj_ctype=GET_U_1(lmp_obj_header->ctype)&0x7f; + + ND_PRINT("\n\t %s Object (%u), Class-Type: %s (%u) Flags: [%snegotiable], length: %u", + tok2str(lmp_obj_values, + "Unknown", + GET_U_1(lmp_obj_header->class_num)), + GET_U_1(lmp_obj_header->class_num), + tok2str(lmp_ctype_values, + "Unknown", + (GET_U_1(lmp_obj_header->class_num)<<8)+lmp_obj_ctype), + lmp_obj_ctype, + GET_U_1(lmp_obj_header->ctype)&0x80 ? "" : "non-", + lmp_obj_len); + + if (lmp_obj_len < 4) { + ND_PRINT(" (too short)"); + return; + } + if ((lmp_obj_len % 4) != 0) { + ND_PRINT(" (not a multiple of 4)"); + return; + } + + obj_tptr=tptr+sizeof(struct lmp_object_header); + obj_tlen=lmp_obj_len-sizeof(struct lmp_object_header); + + /* did we capture enough for fully decoding the object ? */ + ND_TCHECK_LEN(tptr, lmp_obj_len); + hexdump=FALSE; + + switch(GET_U_1(lmp_obj_header->class_num)) { + + case LMP_OBJ_CC_ID: + switch(lmp_obj_ctype) { + case LMP_CTYPE_LOC: + case LMP_CTYPE_RMT: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Control Channel ID: %u (0x%08x)", + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_LINK_ID: + case LMP_OBJ_INTERFACE_ID: + switch(lmp_obj_ctype) { + case LMP_CTYPE_IPV4_LOC: + case LMP_CTYPE_IPV4_RMT: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t IPv4 Link ID: %s (0x%08x)", + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_4(obj_tptr)); + break; + case LMP_CTYPE_IPV6_LOC: + case LMP_CTYPE_IPV6_RMT: + if (obj_tlen != 16) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t IPv6 Link ID: %s (0x%08x)", + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_4(obj_tptr)); + break; + case LMP_CTYPE_UNMD_LOC: + case LMP_CTYPE_UNMD_RMT: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Link ID: %u (0x%08x)", + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr)); + break; + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_MESSAGE_ID: + switch(lmp_obj_ctype) { + case LMP_CTYPE_1: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Message ID: %u (0x%08x)", + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr)); + break; + case LMP_CTYPE_2: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Message ID Ack: %u (0x%08x)", + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr)); + break; + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_NODE_ID: + switch(lmp_obj_ctype) { + case LMP_CTYPE_LOC: + case LMP_CTYPE_RMT: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Node ID: %s (0x%08x)", + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_4(obj_tptr)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_CONFIG: + switch(lmp_obj_ctype) { + case LMP_CTYPE_HELLO_CONFIG: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Hello Interval: %u\n\t Hello Dead Interval: %u", + GET_BE_U_2(obj_tptr), + GET_BE_U_2(obj_tptr + 2)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_HELLO: + switch(lmp_obj_ctype) { + case LMP_CTYPE_HELLO: + if (obj_tlen != 8) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Tx Seq: %u, Rx Seq: %u", + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr + 4)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_TE_LINK: + switch(lmp_obj_ctype) { + case LMP_CTYPE_IPV4: + if (obj_tlen != 12) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: [%s]", + bittok2str(lmp_obj_te_link_flag_values, + "none", + GET_U_1(obj_tptr))); + + ND_PRINT("\n\t Local Link-ID: %s (0x%08x)" + "\n\t Remote Link-ID: %s (0x%08x)", + GET_IPADDR_STRING(obj_tptr+4), + GET_BE_U_4(obj_tptr + 4), + GET_IPADDR_STRING(obj_tptr+8), + GET_BE_U_4(obj_tptr + 8)); + break; + + case LMP_CTYPE_IPV6: + if (obj_tlen != 36) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: [%s]", + bittok2str(lmp_obj_te_link_flag_values, + "none", + GET_U_1(obj_tptr))); + + ND_PRINT("\n\t Local Link-ID: %s (0x%08x)" + "\n\t Remote Link-ID: %s (0x%08x)", + GET_IP6ADDR_STRING(obj_tptr+4), + GET_BE_U_4(obj_tptr + 4), + GET_IP6ADDR_STRING(obj_tptr+20), + GET_BE_U_4(obj_tptr + 20)); + break; + + case LMP_CTYPE_UNMD: + if (obj_tlen != 12) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: [%s]", + bittok2str(lmp_obj_te_link_flag_values, + "none", + GET_U_1(obj_tptr))); + + ND_PRINT("\n\t Local Link-ID: %u (0x%08x)" + "\n\t Remote Link-ID: %u (0x%08x)", + GET_BE_U_4(obj_tptr + 4), + GET_BE_U_4(obj_tptr + 4), + GET_BE_U_4(obj_tptr + 8), + GET_BE_U_4(obj_tptr + 8)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_DATA_LINK: + switch(lmp_obj_ctype) { + case LMP_CTYPE_IPV4: + if (obj_tlen < 12) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: [%s]", + bittok2str(lmp_obj_data_link_flag_values, + "none", + GET_U_1(obj_tptr))); + ND_PRINT("\n\t Local Interface ID: %s (0x%08x)" + "\n\t Remote Interface ID: %s (0x%08x)", + GET_IPADDR_STRING(obj_tptr+4), + GET_BE_U_4(obj_tptr + 4), + GET_IPADDR_STRING(obj_tptr+8), + GET_BE_U_4(obj_tptr + 8)); + + if (lmp_print_data_link_subobjs(ndo, obj_tptr, obj_tlen - 12, 12)) + hexdump=TRUE; + break; + + case LMP_CTYPE_IPV6: + if (obj_tlen < 36) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: [%s]", + bittok2str(lmp_obj_data_link_flag_values, + "none", + GET_U_1(obj_tptr))); + ND_PRINT("\n\t Local Interface ID: %s (0x%08x)" + "\n\t Remote Interface ID: %s (0x%08x)", + GET_IP6ADDR_STRING(obj_tptr+4), + GET_BE_U_4(obj_tptr + 4), + GET_IP6ADDR_STRING(obj_tptr+20), + GET_BE_U_4(obj_tptr + 20)); + + if (lmp_print_data_link_subobjs(ndo, obj_tptr, obj_tlen - 36, 36)) + hexdump=TRUE; + break; + + case LMP_CTYPE_UNMD: + if (obj_tlen < 12) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: [%s]", + bittok2str(lmp_obj_data_link_flag_values, + "none", + GET_U_1(obj_tptr))); + ND_PRINT("\n\t Local Interface ID: %u (0x%08x)" + "\n\t Remote Interface ID: %u (0x%08x)", + GET_BE_U_4(obj_tptr + 4), + GET_BE_U_4(obj_tptr + 4), + GET_BE_U_4(obj_tptr + 8), + GET_BE_U_4(obj_tptr + 8)); + + if (lmp_print_data_link_subobjs(ndo, obj_tptr, obj_tlen - 12, 12)) + hexdump=TRUE; + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_VERIFY_BEGIN: + switch(lmp_obj_ctype) { + case LMP_CTYPE_1: + if (obj_tlen != 20) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: %s", + bittok2str(lmp_obj_begin_verify_flag_values, + "none", + GET_BE_U_2(obj_tptr))); + ND_PRINT("\n\t Verify Interval: %u", + GET_BE_U_2(obj_tptr + 2)); + ND_PRINT("\n\t Data links: %u", + GET_BE_U_4(obj_tptr + 4)); + ND_PRINT("\n\t Encoding type: %s", + tok2str(gmpls_encoding_values, "Unknown", GET_U_1((obj_tptr + 8)))); + ND_PRINT("\n\t Verify Transport Mechanism: %u (0x%x)%s", + GET_BE_U_2(obj_tptr + 10), + GET_BE_U_2(obj_tptr + 10), + GET_BE_U_2(obj_tptr + 10)&8000 ? " (Payload test messages capable)" : ""); + bw.i = GET_BE_U_4(obj_tptr + 12); + ND_PRINT("\n\t Transmission Rate: %.3f Mbps",bw.f*8/1000000); + ND_PRINT("\n\t Wavelength: %u", + GET_BE_U_4(obj_tptr + 16)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_VERIFY_BEGIN_ACK: + switch(lmp_obj_ctype) { + case LMP_CTYPE_1: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Verify Dead Interval: %u" + "\n\t Verify Transport Response: %u", + GET_BE_U_2(obj_tptr), + GET_BE_U_2(obj_tptr + 2)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_VERIFY_ID: + switch(lmp_obj_ctype) { + case LMP_CTYPE_1: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Verify ID: %u", + GET_BE_U_4(obj_tptr)); + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_CHANNEL_STATUS: + switch(lmp_obj_ctype) { + case LMP_CTYPE_IPV4: + offset = 0; + /* Decode pairs: <Interface_ID (4 bytes), Channel_status (4 bytes)> */ + while (offset+8 <= obj_tlen) { + ND_PRINT("\n\t Interface ID: %s (0x%08x)", + GET_IPADDR_STRING(obj_tptr+offset), + GET_BE_U_4(obj_tptr + offset)); + + ND_PRINT("\n\t\t Active: %s (%u)", + (GET_BE_U_4(obj_tptr + offset + 4)>>31) ? + "Allocated" : "Non-allocated", + (GET_BE_U_4(obj_tptr + offset + 4)>>31)); + + ND_PRINT("\n\t\t Direction: %s (%u)", + (GET_BE_U_4(obj_tptr + offset + 4)>>30)&0x1 ? + "Transmit" : "Receive", + (GET_BE_U_4(obj_tptr + offset + 4)>>30)&0x1); + + ND_PRINT("\n\t\t Channel Status: %s (%u)", + tok2str(lmp_obj_channel_status_values, + "Unknown", + GET_BE_U_4(obj_tptr + offset + 4)&0x3FFFFFF), + GET_BE_U_4(obj_tptr + offset + 4)&0x3FFFFFF); + offset+=8; + } + break; + + case LMP_CTYPE_IPV6: + offset = 0; + /* Decode pairs: <Interface_ID (16 bytes), Channel_status (4 bytes)> */ + while (offset+20 <= obj_tlen) { + ND_PRINT("\n\t Interface ID: %s (0x%08x)", + GET_IP6ADDR_STRING(obj_tptr+offset), + GET_BE_U_4(obj_tptr + offset)); + + ND_PRINT("\n\t\t Active: %s (%u)", + (GET_BE_U_4(obj_tptr + offset + 16)>>31) ? + "Allocated" : "Non-allocated", + (GET_BE_U_4(obj_tptr + offset + 16)>>31)); + + ND_PRINT("\n\t\t Direction: %s (%u)", + (GET_BE_U_4(obj_tptr + offset + 16)>>30)&0x1 ? + "Transmit" : "Receive", + (GET_BE_U_4(obj_tptr + offset + 16)>>30)&0x1); + + ND_PRINT("\n\t\t Channel Status: %s (%u)", + tok2str(lmp_obj_channel_status_values, + "Unknown", + GET_BE_U_4(obj_tptr + offset + 16)&0x3FFFFFF), + GET_BE_U_4(obj_tptr + offset + 16)&0x3FFFFFF); + offset+=20; + } + break; + + case LMP_CTYPE_UNMD: + offset = 0; + /* Decode pairs: <Interface_ID (4 bytes), Channel_status (4 bytes)> */ + while (offset+8 <= obj_tlen) { + ND_PRINT("\n\t Interface ID: %u (0x%08x)", + GET_BE_U_4(obj_tptr + offset), + GET_BE_U_4(obj_tptr + offset)); + + ND_PRINT("\n\t\t Active: %s (%u)", + (GET_BE_U_4(obj_tptr + offset + 4)>>31) ? + "Allocated" : "Non-allocated", + (GET_BE_U_4(obj_tptr + offset + 4)>>31)); + + ND_PRINT("\n\t\t Direction: %s (%u)", + (GET_BE_U_4(obj_tptr + offset + 4)>>30)&0x1 ? + "Transmit" : "Receive", + (GET_BE_U_4(obj_tptr + offset + 4)>>30)&0x1); + + ND_PRINT("\n\t\t Channel Status: %s (%u)", + tok2str(lmp_obj_channel_status_values, + "Unknown", + GET_BE_U_4(obj_tptr + offset + 4)&0x3FFFFFF), + GET_BE_U_4(obj_tptr + offset + 4)&0x3FFFFFF); + offset+=8; + } + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_CHANNEL_STATUS_REQ: + switch(lmp_obj_ctype) { + case LMP_CTYPE_IPV4: + offset = 0; + while (offset+4 <= obj_tlen) { + ND_PRINT("\n\t Interface ID: %s (0x%08x)", + GET_IPADDR_STRING(obj_tptr+offset), + GET_BE_U_4(obj_tptr + offset)); + offset+=4; + } + break; + + case LMP_CTYPE_IPV6: + offset = 0; + while (offset+16 <= obj_tlen) { + ND_PRINT("\n\t Interface ID: %s (0x%08x)", + GET_IP6ADDR_STRING(obj_tptr+offset), + GET_BE_U_4(obj_tptr + offset)); + offset+=16; + } + break; + + case LMP_CTYPE_UNMD: + offset = 0; + while (offset+4 <= obj_tlen) { + ND_PRINT("\n\t Interface ID: %u (0x%08x)", + GET_BE_U_4(obj_tptr + offset), + GET_BE_U_4(obj_tptr + offset)); + offset+=4; + } + break; + + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_ERROR_CODE: + switch(lmp_obj_ctype) { + case LMP_CTYPE_BEGIN_VERIFY_ERROR: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Error Code: %s", + bittok2str(lmp_obj_begin_verify_error_values, + "none", + GET_BE_U_4(obj_tptr))); + break; + + case LMP_CTYPE_LINK_SUMMARY_ERROR: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Error Code: %s", + bittok2str(lmp_obj_link_summary_error_values, + "none", + GET_BE_U_4(obj_tptr))); + break; + default: + hexdump=TRUE; + } + break; + + case LMP_OBJ_SERVICE_CONFIG: + switch (lmp_obj_ctype) { + case LMP_CTYPE_SERVICE_CONFIG_SP: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + ND_PRINT("\n\t Flags: %s", + bittok2str(lmp_obj_service_config_sp_flag_values, + "none", + GET_U_1(obj_tptr))); + + ND_PRINT("\n\t UNI Version: %u", + GET_U_1(obj_tptr + 1)); + + break; + + case LMP_CTYPE_SERVICE_CONFIG_CPSA: + if (obj_tlen != 16) { + ND_PRINT(" (not correct for object)"); + break; + } + + link_type = GET_U_1(obj_tptr); + + ND_PRINT("\n\t Link Type: %s (%u)", + tok2str(lmp_sd_service_config_cpsa_link_type_values, + "Unknown", link_type), + link_type); + + switch (link_type) { + case LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH: + ND_PRINT("\n\t Signal Type: %s (%u)", + tok2str(lmp_sd_service_config_cpsa_signal_type_sdh_values, + "Unknown", + GET_U_1(obj_tptr + 1)), + GET_U_1(obj_tptr + 1)); + break; + + case LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET: + ND_PRINT("\n\t Signal Type: %s (%u)", + tok2str(lmp_sd_service_config_cpsa_signal_type_sonet_values, + "Unknown", + GET_U_1(obj_tptr + 1)), + GET_U_1(obj_tptr + 1)); + break; + } + + ND_PRINT("\n\t Transparency: %s", + bittok2str(lmp_obj_service_config_cpsa_tp_flag_values, + "none", + GET_U_1(obj_tptr + 2))); + + ND_PRINT("\n\t Contiguous Concatenation Types: %s", + bittok2str(lmp_obj_service_config_cpsa_cct_flag_values, + "none", + GET_U_1(obj_tptr + 3))); + + ND_PRINT("\n\t Minimum NCC: %u", + GET_BE_U_2(obj_tptr + 4)); + + ND_PRINT("\n\t Maximum NCC: %u", + GET_BE_U_2(obj_tptr + 6)); + + ND_PRINT("\n\t Minimum NVC:%u", + GET_BE_U_2(obj_tptr + 8)); + + ND_PRINT("\n\t Maximum NVC:%u", + GET_BE_U_2(obj_tptr + 10)); + + ND_PRINT("\n\t Local Interface ID: %s (0x%08x)", + GET_IPADDR_STRING(obj_tptr+12), + GET_BE_U_4(obj_tptr + 12)); + + break; + + case LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM: + if (obj_tlen != 8) { + ND_PRINT(" (not correct for object)"); + break; + } + + ND_PRINT("\n\t Transparency Flags: %s", + bittok2str( + lmp_obj_service_config_nsa_transparency_flag_values, + "none", + GET_BE_U_4(obj_tptr))); + + ND_PRINT("\n\t TCM Monitoring Flags: %s", + bittok2str( + lmp_obj_service_config_nsa_tcm_flag_values, + "none", + GET_U_1(obj_tptr + 7))); + + break; + + case LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY: + if (obj_tlen != 4) { + ND_PRINT(" (not correct for object)"); + break; + } + + ND_PRINT("\n\t Diversity: Flags: %s", + bittok2str( + lmp_obj_service_config_nsa_network_diversity_flag_values, + "none", + GET_U_1(obj_tptr + 3))); + break; + + default: + hexdump = TRUE; + } + + break; + + default: + if (ndo->ndo_vflag <= 1) + print_unknown_data(ndo,obj_tptr,"\n\t ",obj_tlen); + break; + } + /* do we want to see an additionally hexdump ? */ + if (ndo->ndo_vflag > 1 || hexdump==TRUE) + print_unknown_data(ndo,tptr+sizeof(struct lmp_object_header),"\n\t ", + lmp_obj_len-sizeof(struct lmp_object_header)); + + if (tlen < lmp_obj_len) { + ND_PRINT(" [remaining objects length %u < %u]", tlen, lmp_obj_len); + nd_print_invalid(ndo); + break; + } + tptr+=lmp_obj_len; + tlen-=lmp_obj_len; + } +} |