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tcpdump/print-lmp.c
Francois-Xavier Le Bail 5cea270318 Remove all storage class specifier 'register' 
Let the compiler do the optimizations (or not) based on build options.

Avoid 'value has been optimized out' messages in gdb using '-O0'.
2017-12-13 19:17:47 +01:00

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/*
* 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: http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <netdissect-stdinc.h>
#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 {
uint8_t version_res[2];
uint8_t flags;
uint8_t msg_type;
uint8_t length[2];
uint8_t reserved[2];
};
#define LMP_VERSION 1
#define LMP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
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 {
uint8_t ctype;
uint8_t class_num;
uint8_t length[2];
};
#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 = EXTRACT_U_1(obj_tptr + offset);
subobj_len = EXTRACT_U_1(obj_tptr + offset + 1);
ND_PRINT((ndo, "\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((ndo, " (too short)"));
break;
}
if ((subobj_len % 4) != 0) {
ND_PRINT((ndo, " (not a multiple of 4)"));
break;
}
if (total_subobj_len < subobj_len) {
ND_PRINT((ndo, " (goes past the end of the object)"));
break;
}
switch(subobj_type) {
case INT_SWITCHING_TYPE_SUBOBJ:
ND_PRINT((ndo, "\n\t Switching Type: %s (%u)",
tok2str(gmpls_switch_cap_values,
"Unknown",
EXTRACT_U_1(obj_tptr + offset + 2)),
EXTRACT_U_1(obj_tptr + offset + 2)));
ND_PRINT((ndo, "\n\t Encoding Type: %s (%u)",
tok2str(gmpls_encoding_values,
"Unknown",
EXTRACT_U_1(obj_tptr + offset + 3)),
EXTRACT_U_1(obj_tptr + offset + 3)));
bw.i = EXTRACT_BE_U_4(obj_tptr + offset + 4);
ND_PRINT((ndo, "\n\t Min Reservable Bandwidth: %.3f Mbps",
bw.f*8/1000000));
bw.i = EXTRACT_BE_U_4(obj_tptr + offset + 8);
ND_PRINT((ndo, "\n\t Max Reservable Bandwidth: %.3f Mbps",
bw.f*8/1000000));
break;
case WAVELENGTH_SUBOBJ:
ND_PRINT((ndo, "\n\t Wavelength: %u",
EXTRACT_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 len)
{
const struct lmp_common_header *lmp_com_header;
const struct lmp_object_header *lmp_obj_header;
const u_char *tptr,*obj_tptr;
u_int 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;
tptr=pptr;
lmp_com_header = (const struct lmp_common_header *)pptr;
ND_TCHECK(*lmp_com_header);
/*
* Sanity checking of the header.
*/
if (LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]) != LMP_VERSION) {
ND_PRINT((ndo, "LMP version %u packet not supported",
LMP_EXTRACT_VERSION(lmp_com_header->version_res[0])));
return;
}
/* in non-verbose mode just lets print the basic Message Type*/
if (ndo->ndo_vflag < 1) {
ND_PRINT((ndo, "LMPv%u %s Message, length: %u",
LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]),
tok2str(lmp_msg_type_values, "unknown (%u)",lmp_com_header->msg_type),
len));
return;
}
/* ok they seem to want to know everything - lets fully decode it */
tlen=EXTRACT_BE_U_2(lmp_com_header->length);
ND_PRINT((ndo, "\n\tLMPv%u, msg-type: %s, Flags: [%s], length: %u",
LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]),
tok2str(lmp_msg_type_values, "unknown, type: %u",lmp_com_header->msg_type),
bittok2str(lmp_header_flag_values,"none",lmp_com_header->flags),
tlen));
if (tlen < sizeof(struct lmp_common_header)) {
ND_PRINT((ndo, " (too short)"));
return;
}
if (tlen > len) {
ND_PRINT((ndo, " (too long)"));
tlen = len;
}
tptr+=sizeof(struct lmp_common_header);
tlen-=sizeof(struct lmp_common_header);
while(tlen>0) {
/* did we capture enough for fully decoding the object header ? */
ND_TCHECK_LEN(tptr, sizeof(struct lmp_object_header));
lmp_obj_header = (const struct lmp_object_header *)tptr;
lmp_obj_len=EXTRACT_BE_U_2(lmp_obj_header->length);
lmp_obj_ctype=(lmp_obj_header->ctype)&0x7f;
ND_PRINT((ndo, "\n\t %s Object (%u), Class-Type: %s (%u) Flags: [%snegotiable], length: %u",
tok2str(lmp_obj_values,
"Unknown",
lmp_obj_header->class_num),
lmp_obj_header->class_num,
tok2str(lmp_ctype_values,
"Unknown",
((lmp_obj_header->class_num)<<8)+lmp_obj_ctype),
lmp_obj_ctype,
(lmp_obj_header->ctype)&0x80 ? "" : "non-",
lmp_obj_len));
if (lmp_obj_len < 4) {
ND_PRINT((ndo, " (too short)"));
return;
}
if ((lmp_obj_len % 4) != 0) {
ND_PRINT((ndo, " (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(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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Control Channel ID: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t IPv4 Link ID: %s (0x%08x)",
ipaddr_string(ndo, obj_tptr),
EXTRACT_BE_U_4(obj_tptr)));
break;
case LMP_CTYPE_IPV6_LOC:
case LMP_CTYPE_IPV6_RMT:
if (obj_tlen != 16) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t IPv6 Link ID: %s (0x%08x)",
ip6addr_string(ndo, obj_tptr),
EXTRACT_BE_U_4(obj_tptr)));
break;
case LMP_CTYPE_UNMD_LOC:
case LMP_CTYPE_UNMD_RMT:
if (obj_tlen != 4) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Link ID: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Message ID: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr),
EXTRACT_BE_U_4(obj_tptr)));
break;
case LMP_CTYPE_2:
if (obj_tlen != 4) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Message ID Ack: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Node ID: %s (0x%08x)",
ipaddr_string(ndo, obj_tptr),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Hello Interval: %u\n\t Hello Dead Interval: %u",
EXTRACT_BE_U_2(obj_tptr),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Tx Seq: %u, Rx Seq: %u",
EXTRACT_BE_U_4(obj_tptr),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: [%s]",
bittok2str(lmp_obj_te_link_flag_values,
"none",
EXTRACT_U_1(obj_tptr))));
ND_PRINT((ndo, "\n\t Local Link-ID: %s (0x%08x)"
"\n\t Remote Link-ID: %s (0x%08x)",
ipaddr_string(ndo, obj_tptr+4),
EXTRACT_BE_U_4(obj_tptr + 4),
ipaddr_string(ndo, obj_tptr+8),
EXTRACT_BE_U_4(obj_tptr + 8)));
break;
case LMP_CTYPE_IPV6:
if (obj_tlen != 36) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: [%s]",
bittok2str(lmp_obj_te_link_flag_values,
"none",
EXTRACT_U_1(obj_tptr))));
ND_PRINT((ndo, "\n\t Local Link-ID: %s (0x%08x)"
"\n\t Remote Link-ID: %s (0x%08x)",
ip6addr_string(ndo, obj_tptr+4),
EXTRACT_BE_U_4(obj_tptr + 4),
ip6addr_string(ndo, obj_tptr+20),
EXTRACT_BE_U_4(obj_tptr + 20)));
break;
case LMP_CTYPE_UNMD:
if (obj_tlen != 12) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: [%s]",
bittok2str(lmp_obj_te_link_flag_values,
"none",
EXTRACT_U_1(obj_tptr))));
ND_PRINT((ndo, "\n\t Local Link-ID: %u (0x%08x)"
"\n\t Remote Link-ID: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr + 4),
EXTRACT_BE_U_4(obj_tptr + 4),
EXTRACT_BE_U_4(obj_tptr + 8),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: [%s]",
bittok2str(lmp_obj_data_link_flag_values,
"none",
EXTRACT_U_1(obj_tptr))));
ND_PRINT((ndo, "\n\t Local Interface ID: %s (0x%08x)"
"\n\t Remote Interface ID: %s (0x%08x)",
ipaddr_string(ndo, obj_tptr+4),
EXTRACT_BE_U_4(obj_tptr + 4),
ipaddr_string(ndo, obj_tptr+8),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: [%s]",
bittok2str(lmp_obj_data_link_flag_values,
"none",
EXTRACT_U_1(obj_tptr))));
ND_PRINT((ndo, "\n\t Local Interface ID: %s (0x%08x)"
"\n\t Remote Interface ID: %s (0x%08x)",
ip6addr_string(ndo, obj_tptr+4),
EXTRACT_BE_U_4(obj_tptr + 4),
ip6addr_string(ndo, obj_tptr+20),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: [%s]",
bittok2str(lmp_obj_data_link_flag_values,
"none",
EXTRACT_U_1(obj_tptr))));
ND_PRINT((ndo, "\n\t Local Interface ID: %u (0x%08x)"
"\n\t Remote Interface ID: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr + 4),
EXTRACT_BE_U_4(obj_tptr + 4),
EXTRACT_BE_U_4(obj_tptr + 8),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: %s",
bittok2str(lmp_obj_begin_verify_flag_values,
"none",
EXTRACT_BE_U_2(obj_tptr))));
ND_PRINT((ndo, "\n\t Verify Interval: %u",
EXTRACT_BE_U_2(obj_tptr + 2)));
ND_PRINT((ndo, "\n\t Data links: %u",
EXTRACT_BE_U_4(obj_tptr + 4)));
ND_PRINT((ndo, "\n\t Encoding type: %s",
tok2str(gmpls_encoding_values, "Unknown", EXTRACT_U_1((obj_tptr + 8)))));
ND_PRINT((ndo, "\n\t Verify Transport Mechanism: %u (0x%x)%s",
EXTRACT_BE_U_2(obj_tptr + 10),
EXTRACT_BE_U_2(obj_tptr + 10),
EXTRACT_BE_U_2(obj_tptr + 10)&8000 ? " (Payload test messages capable)" : ""));
bw.i = EXTRACT_BE_U_4(obj_tptr + 12);
ND_PRINT((ndo, "\n\t Transmission Rate: %.3f Mbps",bw.f*8/1000000));
ND_PRINT((ndo, "\n\t Wavelength: %u",
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Verify Dead Interval: %u"
"\n\t Verify Transport Response: %u",
EXTRACT_BE_U_2(obj_tptr),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Verify ID: %u",
EXTRACT_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((ndo, "\n\t Interface ID: %s (0x%08x)",
ipaddr_string(ndo, obj_tptr+offset),
EXTRACT_BE_U_4(obj_tptr + offset)));
ND_PRINT((ndo, "\n\t\t Active: %s (%u)",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>31) ?
"Allocated" : "Non-allocated",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>31)));
ND_PRINT((ndo, "\n\t\t Direction: %s (%u)",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>30)&0x1 ?
"Transmit" : "Receive",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>30)&0x1));
ND_PRINT((ndo, "\n\t\t Channel Status: %s (%u)",
tok2str(lmp_obj_channel_status_values,
"Unknown",
EXTRACT_BE_U_4(obj_tptr + offset + 4)&0x3FFFFFF),
EXTRACT_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((ndo, "\n\t Interface ID: %s (0x%08x)",
ip6addr_string(ndo, obj_tptr+offset),
EXTRACT_BE_U_4(obj_tptr + offset)));
ND_PRINT((ndo, "\n\t\t Active: %s (%u)",
(EXTRACT_BE_U_4(obj_tptr + offset + 16)>>31) ?
"Allocated" : "Non-allocated",
(EXTRACT_BE_U_4(obj_tptr + offset + 16)>>31)));
ND_PRINT((ndo, "\n\t\t Direction: %s (%u)",
(EXTRACT_BE_U_4(obj_tptr + offset + 16)>>30)&0x1 ?
"Transmit" : "Receive",
(EXTRACT_BE_U_4(obj_tptr + offset + 16)>>30)&0x1));
ND_PRINT((ndo, "\n\t\t Channel Status: %s (%u)",
tok2str(lmp_obj_channel_status_values,
"Unknown",
EXTRACT_BE_U_4(obj_tptr + offset + 16)&0x3FFFFFF),
EXTRACT_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((ndo, "\n\t Interface ID: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr + offset),
EXTRACT_BE_U_4(obj_tptr + offset)));
ND_PRINT((ndo, "\n\t\t Active: %s (%u)",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>31) ?
"Allocated" : "Non-allocated",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>31)));
ND_PRINT((ndo, "\n\t\t Direction: %s (%u)",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>30)&0x1 ?
"Transmit" : "Receive",
(EXTRACT_BE_U_4(obj_tptr + offset + 4)>>30)&0x1));
ND_PRINT((ndo, "\n\t\t Channel Status: %s (%u)",
tok2str(lmp_obj_channel_status_values,
"Unknown",
EXTRACT_BE_U_4(obj_tptr + offset + 4)&0x3FFFFFF),
EXTRACT_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((ndo, "\n\t Interface ID: %s (0x%08x)",
ipaddr_string(ndo, obj_tptr+offset),
EXTRACT_BE_U_4(obj_tptr + offset)));
offset+=4;
}
break;
case LMP_CTYPE_IPV6:
offset = 0;
while (offset+16 <= obj_tlen) {
ND_PRINT((ndo, "\n\t Interface ID: %s (0x%08x)",
ip6addr_string(ndo, obj_tptr+offset),
EXTRACT_BE_U_4(obj_tptr + offset)));
offset+=16;
}
break;
case LMP_CTYPE_UNMD:
offset = 0;
while (offset+4 <= obj_tlen) {
ND_PRINT((ndo, "\n\t Interface ID: %u (0x%08x)",
EXTRACT_BE_U_4(obj_tptr + offset),
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Error Code: %s",
bittok2str(lmp_obj_begin_verify_error_values,
"none",
EXTRACT_BE_U_4(obj_tptr))));
break;
case LMP_CTYPE_LINK_SUMMARY_ERROR:
if (obj_tlen != 4) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Error Code: %s",
bittok2str(lmp_obj_link_summary_error_values,
"none",
EXTRACT_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((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Flags: %s",
bittok2str(lmp_obj_service_config_sp_flag_values,
"none",
EXTRACT_U_1(obj_tptr))));
ND_PRINT((ndo, "\n\t UNI Version: %u",
EXTRACT_U_1(obj_tptr + 1)));
break;
case LMP_CTYPE_SERVICE_CONFIG_CPSA:
if (obj_tlen != 16) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
link_type = EXTRACT_U_1(obj_tptr);
ND_PRINT((ndo, "\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((ndo, "\n\t Signal Type: %s (%u)",
tok2str(lmp_sd_service_config_cpsa_signal_type_sdh_values,
"Unknown",
EXTRACT_U_1(obj_tptr + 1)),
EXTRACT_U_1(obj_tptr + 1)));
break;
case LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET:
ND_PRINT((ndo, "\n\t Signal Type: %s (%u)",
tok2str(lmp_sd_service_config_cpsa_signal_type_sonet_values,
"Unknown",
EXTRACT_U_1(obj_tptr + 1)),
EXTRACT_U_1(obj_tptr + 1)));
break;
}
ND_PRINT((ndo, "\n\t Transparency: %s",
bittok2str(lmp_obj_service_config_cpsa_tp_flag_values,
"none",
EXTRACT_U_1(obj_tptr + 2))));
ND_PRINT((ndo, "\n\t Contiguous Concatenation Types: %s",
bittok2str(lmp_obj_service_config_cpsa_cct_flag_values,
"none",
EXTRACT_U_1(obj_tptr + 3))));
ND_PRINT((ndo, "\n\t Minimum NCC: %u",
EXTRACT_BE_U_2(obj_tptr + 4)));
ND_PRINT((ndo, "\n\t Maximum NCC: %u",
EXTRACT_BE_U_2(obj_tptr + 6)));
ND_PRINT((ndo, "\n\t Minimum NVC:%u",
EXTRACT_BE_U_2(obj_tptr + 8)));
ND_PRINT((ndo, "\n\t Maximum NVC:%u",
EXTRACT_BE_U_2(obj_tptr + 10)));
ND_PRINT((ndo, "\n\t Local Interface ID: %s (0x%08x)",
ipaddr_string(ndo, obj_tptr+12),
EXTRACT_BE_U_4(obj_tptr + 12)));
break;
case LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM:
if (obj_tlen != 8) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Transparency Flags: %s",
bittok2str(
lmp_obj_service_config_nsa_transparency_flag_values,
"none",
EXTRACT_BE_U_4(obj_tptr))));
ND_PRINT((ndo, "\n\t TCM Monitoring Flags: %s",
bittok2str(
lmp_obj_service_config_nsa_tcm_flag_values,
"none",
EXTRACT_U_1(obj_tptr + 7))));
break;
case LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY:
if (obj_tlen != 4) {
ND_PRINT((ndo, " (not correct for object)"));
break;
}
ND_PRINT((ndo, "\n\t Diversity: Flags: %s",
bittok2str(
lmp_obj_service_config_nsa_network_diversity_flag_values,
"none",
EXTRACT_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));
tptr+=lmp_obj_len;
tlen-=lmp_obj_len;
}
return;
trunc:
ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
}
/*
* Local Variables:
* c-style: whitesmith
* c-basic-offset: 8
* End:
*/
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