153f17a9db278d33517d9888dd77848f554522a38JP Abgrall/* 253f17a9db278d33517d9888dd77848f554522a38JP Abgrall * Copyright (c) 1998-2006 The TCPDUMP project 353f17a9db278d33517d9888dd77848f554522a38JP Abgrall * 453f17a9db278d33517d9888dd77848f554522a38JP Abgrall * Redistribution and use in source and binary forms, with or without 553f17a9db278d33517d9888dd77848f554522a38JP Abgrall * modification, are permitted provided that: (1) source code 653f17a9db278d33517d9888dd77848f554522a38JP Abgrall * distributions retain the above copyright notice and this paragraph 753f17a9db278d33517d9888dd77848f554522a38JP Abgrall * in its entirety, and (2) distributions including binary code include 853f17a9db278d33517d9888dd77848f554522a38JP Abgrall * the above copyright notice and this paragraph in its entirety in 953f17a9db278d33517d9888dd77848f554522a38JP Abgrall * the documentation or other materials provided with the distribution. 1053f17a9db278d33517d9888dd77848f554522a38JP Abgrall * THIS SOFTWARE IS PROVIDED ``AS IS'' AND 1153f17a9db278d33517d9888dd77848f554522a38JP Abgrall * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT 1253f17a9db278d33517d9888dd77848f554522a38JP Abgrall * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 1353f17a9db278d33517d9888dd77848f554522a38JP Abgrall * FOR A PARTICULAR PURPOSE. 1453f17a9db278d33517d9888dd77848f554522a38JP Abgrall * 1553f17a9db278d33517d9888dd77848f554522a38JP Abgrall * support for the Cisco prop. VQP Protocol 1653f17a9db278d33517d9888dd77848f554522a38JP Abgrall * 1753f17a9db278d33517d9888dd77848f554522a38JP Abgrall * Original code by Carles Kishimoto <Carles.Kishimoto@bsc.es> 1853f17a9db278d33517d9888dd77848f554522a38JP Abgrall */ 1953f17a9db278d33517d9888dd77848f554522a38JP Abgrall 2053f17a9db278d33517d9888dd77848f554522a38JP Abgrall#ifndef lint 2153f17a9db278d33517d9888dd77848f554522a38JP Abgrallstatic const char rcsid[] _U_ = 2253f17a9db278d33517d9888dd77848f554522a38JP Abgrall "@(#) $Header: /tcpdump/master/tcpdump/print-vqp.c,v 1.3 2006-08-19 06:51:13 guy Exp $"; 2353f17a9db278d33517d9888dd77848f554522a38JP Abgrall#endif 2453f17a9db278d33517d9888dd77848f554522a38JP Abgrall 2553f17a9db278d33517d9888dd77848f554522a38JP Abgrall#ifdef HAVE_CONFIG_H 2653f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include "config.h" 2753f17a9db278d33517d9888dd77848f554522a38JP Abgrall#endif 2853f17a9db278d33517d9888dd77848f554522a38JP Abgrall 2953f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include <tcpdump-stdinc.h> 3053f17a9db278d33517d9888dd77848f554522a38JP Abgrall 3153f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include <stdio.h> 3253f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include <stdlib.h> 3353f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include <string.h> 3453f17a9db278d33517d9888dd77848f554522a38JP Abgrall 3553f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include "interface.h" 3653f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include "extract.h" 3753f17a9db278d33517d9888dd77848f554522a38JP Abgrall#include "addrtoname.h" 3853f17a9db278d33517d9888dd77848f554522a38JP Abgrall 3953f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_VERSION 1 4053f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_EXTRACT_VERSION(x) ((x)&0xFF) 4153f17a9db278d33517d9888dd77848f554522a38JP Abgrall 4253f17a9db278d33517d9888dd77848f554522a38JP Abgrall/* 4353f17a9db278d33517d9888dd77848f554522a38JP Abgrall * VQP common header 4453f17a9db278d33517d9888dd77848f554522a38JP Abgrall * 4553f17a9db278d33517d9888dd77848f554522a38JP Abgrall * 0 1 2 3 4653f17a9db278d33517d9888dd77848f554522a38JP Abgrall * 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 4753f17a9db278d33517d9888dd77848f554522a38JP Abgrall * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 4853f17a9db278d33517d9888dd77848f554522a38JP Abgrall * | Constant | Packet type | Error Code | nitems | 4953f17a9db278d33517d9888dd77848f554522a38JP Abgrall * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 5053f17a9db278d33517d9888dd77848f554522a38JP Abgrall * | Packet Sequence Number (4 bytes) | 5153f17a9db278d33517d9888dd77848f554522a38JP Abgrall * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ 5253f17a9db278d33517d9888dd77848f554522a38JP Abgrall */ 5353f17a9db278d33517d9888dd77848f554522a38JP Abgrall 5453f17a9db278d33517d9888dd77848f554522a38JP Abgrallstruct vqp_common_header_t { 5553f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t version; 5653f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t msg_type; 5753f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t error_code; 5853f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t nitems; 5953f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t sequence[4]; 6053f17a9db278d33517d9888dd77848f554522a38JP Abgrall}; 6153f17a9db278d33517d9888dd77848f554522a38JP Abgrall 6253f17a9db278d33517d9888dd77848f554522a38JP Abgrallstruct vqp_obj_tlv_t { 6353f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t obj_type[4]; 6453f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t obj_length[2]; 6553f17a9db278d33517d9888dd77848f554522a38JP Abgrall}; 6653f17a9db278d33517d9888dd77848f554522a38JP Abgrall 6753f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_REQ_JOIN_PORT 0x01 6853f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_RESP_VLAN 0x02 6953f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_REQ_RECONFIRM 0x03 7053f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_RESP_RECONFIRM 0x04 7153f17a9db278d33517d9888dd77848f554522a38JP Abgrall 7253f17a9db278d33517d9888dd77848f554522a38JP Abgrallstatic const struct tok vqp_msg_type_values[] = { 7353f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_REQ_JOIN_PORT, "Request, Join Port"}, 7453f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_RESP_VLAN, "Response, VLAN"}, 7553f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_REQ_RECONFIRM, "Request, Reconfirm"}, 7653f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_RESP_RECONFIRM, "Response, Reconfirm"}, 7753f17a9db278d33517d9888dd77848f554522a38JP Abgrall { 0, NULL} 7853f17a9db278d33517d9888dd77848f554522a38JP Abgrall}; 7953f17a9db278d33517d9888dd77848f554522a38JP Abgrall 8053f17a9db278d33517d9888dd77848f554522a38JP Abgrallstatic const struct tok vqp_error_code_values[] = { 8153f17a9db278d33517d9888dd77848f554522a38JP Abgrall { 0x00, "No error"}, 8253f17a9db278d33517d9888dd77848f554522a38JP Abgrall { 0x03, "Access denied"}, 8353f17a9db278d33517d9888dd77848f554522a38JP Abgrall { 0x04, "Shutdown port"}, 8453f17a9db278d33517d9888dd77848f554522a38JP Abgrall { 0x05, "Wrong VTP domain"}, 8553f17a9db278d33517d9888dd77848f554522a38JP Abgrall { 0, NULL} 8653f17a9db278d33517d9888dd77848f554522a38JP Abgrall}; 8753f17a9db278d33517d9888dd77848f554522a38JP Abgrall 8853f17a9db278d33517d9888dd77848f554522a38JP Abgrall/* FIXME the heading 0x0c looks ugly - those must be flags etc. */ 8953f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_IP_ADDRESS 0x0c01 9053f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_PORT_NAME 0x0c02 9153f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_VLAN_NAME 0x0c03 9253f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_VTP_DOMAIN 0x0c04 9353f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_ETHERNET_PKT 0x0c05 9453f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_MAC_NULL 0x0c06 9553f17a9db278d33517d9888dd77848f554522a38JP Abgrall#define VQP_OBJ_MAC_ADDRESS 0x0c08 9653f17a9db278d33517d9888dd77848f554522a38JP Abgrall 9753f17a9db278d33517d9888dd77848f554522a38JP Abgrallstatic const struct tok vqp_obj_values[] = { 9853f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_IP_ADDRESS, "Client IP Address" }, 9953f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_PORT_NAME, "Port Name" }, 10053f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_VLAN_NAME, "VLAN Name" }, 10153f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_VTP_DOMAIN, "VTP Domain" }, 10253f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_ETHERNET_PKT, "Ethernet Packet" }, 10353f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_MAC_NULL, "MAC Null" }, 10453f17a9db278d33517d9888dd77848f554522a38JP Abgrall { VQP_OBJ_MAC_ADDRESS, "MAC Address" }, 10553f17a9db278d33517d9888dd77848f554522a38JP Abgrall { 0, NULL} 10653f17a9db278d33517d9888dd77848f554522a38JP Abgrall}; 10753f17a9db278d33517d9888dd77848f554522a38JP Abgrall 10853f17a9db278d33517d9888dd77848f554522a38JP Abgrallvoid 10953f17a9db278d33517d9888dd77848f554522a38JP Abgrallvqp_print(register const u_char *pptr, register u_int len) 11053f17a9db278d33517d9888dd77848f554522a38JP Abgrall{ 11153f17a9db278d33517d9888dd77848f554522a38JP Abgrall const struct vqp_common_header_t *vqp_common_header; 11253f17a9db278d33517d9888dd77848f554522a38JP Abgrall const struct vqp_obj_tlv_t *vqp_obj_tlv; 11353f17a9db278d33517d9888dd77848f554522a38JP Abgrall 11453f17a9db278d33517d9888dd77848f554522a38JP Abgrall const u_char *tptr; 11553f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int16_t vqp_obj_len; 11653f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int32_t vqp_obj_type; 11753f17a9db278d33517d9888dd77848f554522a38JP Abgrall int tlen; 11853f17a9db278d33517d9888dd77848f554522a38JP Abgrall u_int8_t nitems; 11953f17a9db278d33517d9888dd77848f554522a38JP Abgrall 12053f17a9db278d33517d9888dd77848f554522a38JP Abgrall tptr=pptr; 12153f17a9db278d33517d9888dd77848f554522a38JP Abgrall tlen = len; 12253f17a9db278d33517d9888dd77848f554522a38JP Abgrall vqp_common_header = (const struct vqp_common_header_t *)pptr; 12353f17a9db278d33517d9888dd77848f554522a38JP Abgrall TCHECK(*vqp_common_header); 12453f17a9db278d33517d9888dd77848f554522a38JP Abgrall 12553f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* 12653f17a9db278d33517d9888dd77848f554522a38JP Abgrall * Sanity checking of the header. 12753f17a9db278d33517d9888dd77848f554522a38JP Abgrall */ 12853f17a9db278d33517d9888dd77848f554522a38JP Abgrall if (VQP_EXTRACT_VERSION(vqp_common_header->version) != VQP_VERSION) { 12953f17a9db278d33517d9888dd77848f554522a38JP Abgrall printf("VQP version %u packet not supported", 13053f17a9db278d33517d9888dd77848f554522a38JP Abgrall VQP_EXTRACT_VERSION(vqp_common_header->version)); 13153f17a9db278d33517d9888dd77848f554522a38JP Abgrall return; 13253f17a9db278d33517d9888dd77848f554522a38JP Abgrall } 13353f17a9db278d33517d9888dd77848f554522a38JP Abgrall 13453f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* in non-verbose mode just lets print the basic Message Type */ 13553f17a9db278d33517d9888dd77848f554522a38JP Abgrall if (vflag < 1) { 13653f17a9db278d33517d9888dd77848f554522a38JP Abgrall printf("VQPv%u %s Message, error-code %s (%u), length %u", 13753f17a9db278d33517d9888dd77848f554522a38JP Abgrall VQP_EXTRACT_VERSION(vqp_common_header->version), 13853f17a9db278d33517d9888dd77848f554522a38JP Abgrall tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type), 13953f17a9db278d33517d9888dd77848f554522a38JP Abgrall tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code), 14053f17a9db278d33517d9888dd77848f554522a38JP Abgrall vqp_common_header->error_code, 14153f17a9db278d33517d9888dd77848f554522a38JP Abgrall len); 14253f17a9db278d33517d9888dd77848f554522a38JP Abgrall return; 14353f17a9db278d33517d9888dd77848f554522a38JP Abgrall } 14453f17a9db278d33517d9888dd77848f554522a38JP Abgrall 14553f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* ok they seem to want to know everything - lets fully decode it */ 14653f17a9db278d33517d9888dd77848f554522a38JP Abgrall nitems = vqp_common_header->nitems; 14753f17a9db278d33517d9888dd77848f554522a38JP Abgrall printf("\n\tVQPv%u, %s Message, error-code %s (%u), seq 0x%08x, items %u, length %u", 14853f17a9db278d33517d9888dd77848f554522a38JP Abgrall VQP_EXTRACT_VERSION(vqp_common_header->version), 14953f17a9db278d33517d9888dd77848f554522a38JP Abgrall tok2str(vqp_msg_type_values, "unknown (%u)",vqp_common_header->msg_type), 15053f17a9db278d33517d9888dd77848f554522a38JP Abgrall tok2str(vqp_error_code_values, "unknown (%u)",vqp_common_header->error_code), 15153f17a9db278d33517d9888dd77848f554522a38JP Abgrall vqp_common_header->error_code, 15253f17a9db278d33517d9888dd77848f554522a38JP Abgrall EXTRACT_32BITS(&vqp_common_header->sequence), 15353f17a9db278d33517d9888dd77848f554522a38JP Abgrall nitems, 15453f17a9db278d33517d9888dd77848f554522a38JP Abgrall len); 15553f17a9db278d33517d9888dd77848f554522a38JP Abgrall 15653f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* skip VQP Common header */ 15753f17a9db278d33517d9888dd77848f554522a38JP Abgrall tptr+=sizeof(const struct vqp_common_header_t); 15853f17a9db278d33517d9888dd77848f554522a38JP Abgrall tlen-=sizeof(const struct vqp_common_header_t); 15953f17a9db278d33517d9888dd77848f554522a38JP Abgrall 16053f17a9db278d33517d9888dd77848f554522a38JP Abgrall while (nitems > 0 && tlen > 0) { 16153f17a9db278d33517d9888dd77848f554522a38JP Abgrall 16253f17a9db278d33517d9888dd77848f554522a38JP Abgrall vqp_obj_tlv = (const struct vqp_obj_tlv_t *)tptr; 16353f17a9db278d33517d9888dd77848f554522a38JP Abgrall vqp_obj_type = EXTRACT_32BITS(vqp_obj_tlv->obj_type); 16453f17a9db278d33517d9888dd77848f554522a38JP Abgrall vqp_obj_len = EXTRACT_16BITS(vqp_obj_tlv->obj_length); 16553f17a9db278d33517d9888dd77848f554522a38JP Abgrall tptr+=sizeof(struct vqp_obj_tlv_t); 16653f17a9db278d33517d9888dd77848f554522a38JP Abgrall tlen-=sizeof(struct vqp_obj_tlv_t); 16753f17a9db278d33517d9888dd77848f554522a38JP Abgrall 16853f17a9db278d33517d9888dd77848f554522a38JP Abgrall printf("\n\t %s Object (0x%08x), length %u, value: ", 16953f17a9db278d33517d9888dd77848f554522a38JP Abgrall tok2str(vqp_obj_values, "Unknown", vqp_obj_type), 17053f17a9db278d33517d9888dd77848f554522a38JP Abgrall vqp_obj_type, vqp_obj_len); 17153f17a9db278d33517d9888dd77848f554522a38JP Abgrall 17253f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* basic sanity check */ 17353f17a9db278d33517d9888dd77848f554522a38JP Abgrall if (vqp_obj_type == 0 || vqp_obj_len ==0) { 17453f17a9db278d33517d9888dd77848f554522a38JP Abgrall return; 17553f17a9db278d33517d9888dd77848f554522a38JP Abgrall } 17653f17a9db278d33517d9888dd77848f554522a38JP Abgrall 17753f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* did we capture enough for fully decoding the object ? */ 17853f17a9db278d33517d9888dd77848f554522a38JP Abgrall if (!TTEST2(*tptr, vqp_obj_len)) 17953f17a9db278d33517d9888dd77848f554522a38JP Abgrall goto trunc; 18053f17a9db278d33517d9888dd77848f554522a38JP Abgrall 18153f17a9db278d33517d9888dd77848f554522a38JP Abgrall switch(vqp_obj_type) { 18253f17a9db278d33517d9888dd77848f554522a38JP Abgrall case VQP_OBJ_IP_ADDRESS: 18353f17a9db278d33517d9888dd77848f554522a38JP Abgrall printf("%s (0x%08x)", ipaddr_string(tptr), EXTRACT_32BITS(tptr)); 18453f17a9db278d33517d9888dd77848f554522a38JP Abgrall break; 18553f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* those objects have similar semantics - fall through */ 18653f17a9db278d33517d9888dd77848f554522a38JP Abgrall case VQP_OBJ_PORT_NAME: 18753f17a9db278d33517d9888dd77848f554522a38JP Abgrall case VQP_OBJ_VLAN_NAME: 18853f17a9db278d33517d9888dd77848f554522a38JP Abgrall case VQP_OBJ_VTP_DOMAIN: 18953f17a9db278d33517d9888dd77848f554522a38JP Abgrall case VQP_OBJ_ETHERNET_PKT: 19053f17a9db278d33517d9888dd77848f554522a38JP Abgrall safeputs((const char *)tptr, vqp_obj_len); 19153f17a9db278d33517d9888dd77848f554522a38JP Abgrall break; 19253f17a9db278d33517d9888dd77848f554522a38JP Abgrall /* those objects have similar semantics - fall through */ 19353f17a9db278d33517d9888dd77848f554522a38JP Abgrall case VQP_OBJ_MAC_ADDRESS: 19453f17a9db278d33517d9888dd77848f554522a38JP Abgrall case VQP_OBJ_MAC_NULL: 19553f17a9db278d33517d9888dd77848f554522a38JP Abgrall printf("%s", etheraddr_string(tptr)); 19653f17a9db278d33517d9888dd77848f554522a38JP Abgrall break; 19753f17a9db278d33517d9888dd77848f554522a38JP Abgrall default: 19853f17a9db278d33517d9888dd77848f554522a38JP Abgrall if (vflag <= 1) 19953f17a9db278d33517d9888dd77848f554522a38JP Abgrall print_unknown_data(tptr, "\n\t ", vqp_obj_len); 20053f17a9db278d33517d9888dd77848f554522a38JP Abgrall break; 20153f17a9db278d33517d9888dd77848f554522a38JP Abgrall } 20253f17a9db278d33517d9888dd77848f554522a38JP Abgrall tptr += vqp_obj_len; 20353f17a9db278d33517d9888dd77848f554522a38JP Abgrall tlen -= vqp_obj_len; 20453f17a9db278d33517d9888dd77848f554522a38JP Abgrall nitems--; 20553f17a9db278d33517d9888dd77848f554522a38JP Abgrall } 20653f17a9db278d33517d9888dd77848f554522a38JP Abgrall return; 20753f17a9db278d33517d9888dd77848f554522a38JP Abgralltrunc: 20853f17a9db278d33517d9888dd77848f554522a38JP Abgrall printf("\n\t[|VQP]"); 20953f17a9db278d33517d9888dd77848f554522a38JP Abgrall} 210