print-juniper.c revision 190207
1/* NetBSD: print-juniper.c,v 1.2 2007/07/24 11:53:45 drochner Exp */ 2 3/* 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that: (1) source code 6 * distributions retain the above copyright notice and this paragraph 7 * in its entirety, and (2) distributions including binary code include 8 * the above copyright notice and this paragraph in its entirety in 9 * the documentation or other materials provided with the distribution. 10 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND 11 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT 12 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 13 * FOR A PARTICULAR PURPOSE. 14 * 15 * Original code by Hannes Gredler (hannes@juniper.net) 16 */ 17 18#ifndef lint 19static const char rcsid[] _U_ = 20 "@(#) $Header: /tcpdump/master/tcpdump/print-juniper.c,v 1.34 2007-08-29 02:31:44 mcr Exp $ (LBL)"; 21#else 22__RCSID("NetBSD: print-juniper.c,v 1.3 2007/07/25 06:31:32 dogcow Exp "); 23#endif 24 25#ifdef HAVE_CONFIG_H 26#include "config.h" 27#endif 28 29#include <tcpdump-stdinc.h> 30 31#include <pcap.h> 32#include <stdio.h> 33 34#include "interface.h" 35#include "addrtoname.h" 36#include "extract.h" 37#include "ppp.h" 38#include "llc.h" 39#include "nlpid.h" 40#include "ethertype.h" 41#include "atm.h" 42 43#define JUNIPER_BPF_OUT 0 /* Outgoing packet */ 44#define JUNIPER_BPF_IN 1 /* Incoming packet */ 45#define JUNIPER_BPF_PKT_IN 0x1 /* Incoming packet */ 46#define JUNIPER_BPF_NO_L2 0x2 /* L2 header stripped */ 47#define JUNIPER_BPF_IIF 0x4 /* IIF is valid */ 48#define JUNIPER_BPF_FILTER 0x40 /* BPF filtering is supported */ 49#define JUNIPER_BPF_EXT 0x80 /* extensions present */ 50#define JUNIPER_MGC_NUMBER 0x4d4743 /* = "MGC" */ 51 52#define JUNIPER_LSQ_COOKIE_RE (1 << 3) 53#define JUNIPER_LSQ_COOKIE_DIR (1 << 2) 54#define JUNIPER_LSQ_L3_PROTO_SHIFT 4 55#define JUNIPER_LSQ_L3_PROTO_MASK (0x17 << JUNIPER_LSQ_L3_PROTO_SHIFT) 56#define JUNIPER_LSQ_L3_PROTO_IPV4 (0 << JUNIPER_LSQ_L3_PROTO_SHIFT) 57#define JUNIPER_LSQ_L3_PROTO_IPV6 (1 << JUNIPER_LSQ_L3_PROTO_SHIFT) 58#define JUNIPER_LSQ_L3_PROTO_MPLS (2 << JUNIPER_LSQ_L3_PROTO_SHIFT) 59#define JUNIPER_LSQ_L3_PROTO_ISO (3 << JUNIPER_LSQ_L3_PROTO_SHIFT) 60#define AS_PIC_COOKIE_LEN 8 61 62#define JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE 1 63#define JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE 2 64#define JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE 3 65#define JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE 4 66#define JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE 5 67 68static struct tok juniper_ipsec_type_values[] = { 69 { JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE, "ESP ENCR-AUTH" }, 70 { JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE, "ESP ENCR-AH AUTH" }, 71 { JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE, "ESP AUTH" }, 72 { JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE, "AH AUTH" }, 73 { JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE, "ESP ENCR" }, 74 { 0, NULL} 75}; 76 77static struct tok juniper_direction_values[] = { 78 { JUNIPER_BPF_IN, "In"}, 79 { JUNIPER_BPF_OUT, "Out"}, 80 { 0, NULL} 81}; 82 83/* codepoints for encoding extensions to a .pcap file */ 84enum { 85 JUNIPER_EXT_TLV_IFD_IDX = 1, 86 JUNIPER_EXT_TLV_IFD_NAME = 2, 87 JUNIPER_EXT_TLV_IFD_MEDIATYPE = 3, 88 JUNIPER_EXT_TLV_IFL_IDX = 4, 89 JUNIPER_EXT_TLV_IFL_UNIT = 5, 90 JUNIPER_EXT_TLV_IFL_ENCAPS = 6, 91 JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE = 7, 92 JUNIPER_EXT_TLV_TTP_IFL_ENCAPS = 8 93}; 94 95/* 1 byte type and 1-byte length */ 96#define JUNIPER_EXT_TLV_OVERHEAD 2 97 98struct tok jnx_ext_tlv_values[] = { 99 { JUNIPER_EXT_TLV_IFD_IDX, "Device Interface Index" }, 100 { JUNIPER_EXT_TLV_IFD_NAME,"Device Interface Name" }, 101 { JUNIPER_EXT_TLV_IFD_MEDIATYPE, "Device Media Type" }, 102 { JUNIPER_EXT_TLV_IFL_IDX, "Logical Interface Index" }, 103 { JUNIPER_EXT_TLV_IFL_UNIT,"Logical Unit Number" }, 104 { JUNIPER_EXT_TLV_IFL_ENCAPS, "Logical Interface Encapsulation" }, 105 { JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE, "TTP derived Device Media Type" }, 106 { JUNIPER_EXT_TLV_TTP_IFL_ENCAPS, "TTP derived Logical Interface Encapsulation" }, 107 { 0, NULL } 108}; 109 110struct tok jnx_flag_values[] = { 111 { JUNIPER_BPF_EXT, "Ext" }, 112 { JUNIPER_BPF_FILTER, "Filter" }, 113 { JUNIPER_BPF_IIF, "IIF" }, 114 { JUNIPER_BPF_NO_L2, "no-L2" }, 115 { JUNIPER_BPF_PKT_IN, "In" }, 116 { 0, NULL } 117}; 118 119#define JUNIPER_IFML_ETHER 1 120#define JUNIPER_IFML_FDDI 2 121#define JUNIPER_IFML_TOKENRING 3 122#define JUNIPER_IFML_PPP 4 123#define JUNIPER_IFML_FRAMERELAY 5 124#define JUNIPER_IFML_CISCOHDLC 6 125#define JUNIPER_IFML_SMDSDXI 7 126#define JUNIPER_IFML_ATMPVC 8 127#define JUNIPER_IFML_PPP_CCC 9 128#define JUNIPER_IFML_FRAMERELAY_CCC 10 129#define JUNIPER_IFML_IPIP 11 130#define JUNIPER_IFML_GRE 12 131#define JUNIPER_IFML_PIM 13 132#define JUNIPER_IFML_PIMD 14 133#define JUNIPER_IFML_CISCOHDLC_CCC 15 134#define JUNIPER_IFML_VLAN_CCC 16 135#define JUNIPER_IFML_MLPPP 17 136#define JUNIPER_IFML_MLFR 18 137#define JUNIPER_IFML_ML 19 138#define JUNIPER_IFML_LSI 20 139#define JUNIPER_IFML_DFE 21 140#define JUNIPER_IFML_ATM_CELLRELAY_CCC 22 141#define JUNIPER_IFML_CRYPTO 23 142#define JUNIPER_IFML_GGSN 24 143#define JUNIPER_IFML_LSI_PPP 25 144#define JUNIPER_IFML_LSI_CISCOHDLC 26 145#define JUNIPER_IFML_PPP_TCC 27 146#define JUNIPER_IFML_FRAMERELAY_TCC 28 147#define JUNIPER_IFML_CISCOHDLC_TCC 29 148#define JUNIPER_IFML_ETHERNET_CCC 30 149#define JUNIPER_IFML_VT 31 150#define JUNIPER_IFML_EXTENDED_VLAN_CCC 32 151#define JUNIPER_IFML_ETHER_OVER_ATM 33 152#define JUNIPER_IFML_MONITOR 34 153#define JUNIPER_IFML_ETHERNET_TCC 35 154#define JUNIPER_IFML_VLAN_TCC 36 155#define JUNIPER_IFML_EXTENDED_VLAN_TCC 37 156#define JUNIPER_IFML_CONTROLLER 38 157#define JUNIPER_IFML_MFR 39 158#define JUNIPER_IFML_LS 40 159#define JUNIPER_IFML_ETHERNET_VPLS 41 160#define JUNIPER_IFML_ETHERNET_VLAN_VPLS 42 161#define JUNIPER_IFML_ETHERNET_EXTENDED_VLAN_VPLS 43 162#define JUNIPER_IFML_LT 44 163#define JUNIPER_IFML_SERVICES 45 164#define JUNIPER_IFML_ETHER_VPLS_OVER_ATM 46 165#define JUNIPER_IFML_FR_PORT_CCC 47 166#define JUNIPER_IFML_FRAMERELAY_EXT_CCC 48 167#define JUNIPER_IFML_FRAMERELAY_EXT_TCC 49 168#define JUNIPER_IFML_FRAMERELAY_FLEX 50 169#define JUNIPER_IFML_GGSNI 51 170#define JUNIPER_IFML_ETHERNET_FLEX 52 171#define JUNIPER_IFML_COLLECTOR 53 172#define JUNIPER_IFML_AGGREGATOR 54 173#define JUNIPER_IFML_LAPD 55 174#define JUNIPER_IFML_PPPOE 56 175#define JUNIPER_IFML_PPP_SUBORDINATE 57 176#define JUNIPER_IFML_CISCOHDLC_SUBORDINATE 58 177#define JUNIPER_IFML_DFC 59 178#define JUNIPER_IFML_PICPEER 60 179 180struct tok juniper_ifmt_values[] = { 181 { JUNIPER_IFML_ETHER, "Ethernet" }, 182 { JUNIPER_IFML_FDDI, "FDDI" }, 183 { JUNIPER_IFML_TOKENRING, "Token-Ring" }, 184 { JUNIPER_IFML_PPP, "PPP" }, 185 { JUNIPER_IFML_PPP_SUBORDINATE, "PPP-Subordinate" }, 186 { JUNIPER_IFML_FRAMERELAY, "Frame-Relay" }, 187 { JUNIPER_IFML_CISCOHDLC, "Cisco-HDLC" }, 188 { JUNIPER_IFML_SMDSDXI, "SMDS-DXI" }, 189 { JUNIPER_IFML_ATMPVC, "ATM-PVC" }, 190 { JUNIPER_IFML_PPP_CCC, "PPP-CCC" }, 191 { JUNIPER_IFML_FRAMERELAY_CCC, "Frame-Relay-CCC" }, 192 { JUNIPER_IFML_FRAMERELAY_EXT_CCC, "Extended FR-CCC" }, 193 { JUNIPER_IFML_IPIP, "IP-over-IP" }, 194 { JUNIPER_IFML_GRE, "GRE" }, 195 { JUNIPER_IFML_PIM, "PIM-Encapsulator" }, 196 { JUNIPER_IFML_PIMD, "PIM-Decapsulator" }, 197 { JUNIPER_IFML_CISCOHDLC_CCC, "Cisco-HDLC-CCC" }, 198 { JUNIPER_IFML_VLAN_CCC, "VLAN-CCC" }, 199 { JUNIPER_IFML_EXTENDED_VLAN_CCC, "Extended-VLAN-CCC" }, 200 { JUNIPER_IFML_MLPPP, "Multilink-PPP" }, 201 { JUNIPER_IFML_MLFR, "Multilink-FR" }, 202 { JUNIPER_IFML_MFR, "Multilink-FR-UNI-NNI" }, 203 { JUNIPER_IFML_ML, "Multilink" }, 204 { JUNIPER_IFML_LS, "LinkService" }, 205 { JUNIPER_IFML_LSI, "LSI" }, 206 { JUNIPER_IFML_ATM_CELLRELAY_CCC, "ATM-CCC-Cell-Relay" }, 207 { JUNIPER_IFML_CRYPTO, "IPSEC-over-IP" }, 208 { JUNIPER_IFML_GGSN, "GGSN" }, 209 { JUNIPER_IFML_PPP_TCC, "PPP-TCC" }, 210 { JUNIPER_IFML_FRAMERELAY_TCC, "Frame-Relay-TCC" }, 211 { JUNIPER_IFML_FRAMERELAY_EXT_TCC, "Extended FR-TCC" }, 212 { JUNIPER_IFML_CISCOHDLC_TCC, "Cisco-HDLC-TCC" }, 213 { JUNIPER_IFML_ETHERNET_CCC, "Ethernet-CCC" }, 214 { JUNIPER_IFML_VT, "VPN-Loopback-tunnel" }, 215 { JUNIPER_IFML_ETHER_OVER_ATM, "Ethernet-over-ATM" }, 216 { JUNIPER_IFML_ETHER_VPLS_OVER_ATM, "Ethernet-VPLS-over-ATM" }, 217 { JUNIPER_IFML_MONITOR, "Monitor" }, 218 { JUNIPER_IFML_ETHERNET_TCC, "Ethernet-TCC" }, 219 { JUNIPER_IFML_VLAN_TCC, "VLAN-TCC" }, 220 { JUNIPER_IFML_EXTENDED_VLAN_TCC, "Extended-VLAN-TCC" }, 221 { JUNIPER_IFML_CONTROLLER, "Controller" }, 222 { JUNIPER_IFML_ETHERNET_VPLS, "VPLS" }, 223 { JUNIPER_IFML_ETHERNET_VLAN_VPLS, "VLAN-VPLS" }, 224 { JUNIPER_IFML_ETHERNET_EXTENDED_VLAN_VPLS, "Extended-VLAN-VPLS" }, 225 { JUNIPER_IFML_LT, "Logical-tunnel" }, 226 { JUNIPER_IFML_SERVICES, "General-Services" }, 227 { JUNIPER_IFML_PPPOE, "PPPoE" }, 228 { JUNIPER_IFML_ETHERNET_FLEX, "Flexible-Ethernet-Services" }, 229 { JUNIPER_IFML_FRAMERELAY_FLEX, "Flexible-FrameRelay" }, 230 { JUNIPER_IFML_COLLECTOR, "Flow-collection" }, 231 { JUNIPER_IFML_PICPEER, "PIC Peer" }, 232 { JUNIPER_IFML_DFC, "Dynamic-Flow-Capture" }, 233 {0, NULL} 234}; 235 236#define JUNIPER_IFLE_ATM_SNAP 2 237#define JUNIPER_IFLE_ATM_NLPID 3 238#define JUNIPER_IFLE_ATM_VCMUX 4 239#define JUNIPER_IFLE_ATM_LLC 5 240#define JUNIPER_IFLE_ATM_PPP_VCMUX 6 241#define JUNIPER_IFLE_ATM_PPP_LLC 7 242#define JUNIPER_IFLE_ATM_PPP_FUNI 8 243#define JUNIPER_IFLE_ATM_CCC 9 244#define JUNIPER_IFLE_FR_NLPID 10 245#define JUNIPER_IFLE_FR_SNAP 11 246#define JUNIPER_IFLE_FR_PPP 12 247#define JUNIPER_IFLE_FR_CCC 13 248#define JUNIPER_IFLE_ENET2 14 249#define JUNIPER_IFLE_IEEE8023_SNAP 15 250#define JUNIPER_IFLE_IEEE8023_LLC 16 251#define JUNIPER_IFLE_PPP 17 252#define JUNIPER_IFLE_CISCOHDLC 18 253#define JUNIPER_IFLE_PPP_CCC 19 254#define JUNIPER_IFLE_IPIP_NULL 20 255#define JUNIPER_IFLE_PIM_NULL 21 256#define JUNIPER_IFLE_GRE_NULL 22 257#define JUNIPER_IFLE_GRE_PPP 23 258#define JUNIPER_IFLE_PIMD_DECAPS 24 259#define JUNIPER_IFLE_CISCOHDLC_CCC 25 260#define JUNIPER_IFLE_ATM_CISCO_NLPID 26 261#define JUNIPER_IFLE_VLAN_CCC 27 262#define JUNIPER_IFLE_MLPPP 28 263#define JUNIPER_IFLE_MLFR 29 264#define JUNIPER_IFLE_LSI_NULL 30 265#define JUNIPER_IFLE_AGGREGATE_UNUSED 31 266#define JUNIPER_IFLE_ATM_CELLRELAY_CCC 32 267#define JUNIPER_IFLE_CRYPTO 33 268#define JUNIPER_IFLE_GGSN 34 269#define JUNIPER_IFLE_ATM_TCC 35 270#define JUNIPER_IFLE_FR_TCC 36 271#define JUNIPER_IFLE_PPP_TCC 37 272#define JUNIPER_IFLE_CISCOHDLC_TCC 38 273#define JUNIPER_IFLE_ETHERNET_CCC 39 274#define JUNIPER_IFLE_VT 40 275#define JUNIPER_IFLE_ATM_EOA_LLC 41 276#define JUNIPER_IFLE_EXTENDED_VLAN_CCC 42 277#define JUNIPER_IFLE_ATM_SNAP_TCC 43 278#define JUNIPER_IFLE_MONITOR 44 279#define JUNIPER_IFLE_ETHERNET_TCC 45 280#define JUNIPER_IFLE_VLAN_TCC 46 281#define JUNIPER_IFLE_EXTENDED_VLAN_TCC 47 282#define JUNIPER_IFLE_MFR 48 283#define JUNIPER_IFLE_ETHERNET_VPLS 49 284#define JUNIPER_IFLE_ETHERNET_VLAN_VPLS 50 285#define JUNIPER_IFLE_ETHERNET_EXTENDED_VLAN_VPLS 51 286#define JUNIPER_IFLE_SERVICES 52 287#define JUNIPER_IFLE_ATM_ETHER_VPLS_ATM_LLC 53 288#define JUNIPER_IFLE_FR_PORT_CCC 54 289#define JUNIPER_IFLE_ATM_MLPPP_LLC 55 290#define JUNIPER_IFLE_ATM_EOA_CCC 56 291#define JUNIPER_IFLE_LT_VLAN 57 292#define JUNIPER_IFLE_COLLECTOR 58 293#define JUNIPER_IFLE_AGGREGATOR 59 294#define JUNIPER_IFLE_LAPD 60 295#define JUNIPER_IFLE_ATM_PPPOE_LLC 61 296#define JUNIPER_IFLE_ETHERNET_PPPOE 62 297#define JUNIPER_IFLE_PPPOE 63 298#define JUNIPER_IFLE_PPP_SUBORDINATE 64 299#define JUNIPER_IFLE_CISCOHDLC_SUBORDINATE 65 300#define JUNIPER_IFLE_DFC 66 301#define JUNIPER_IFLE_PICPEER 67 302 303struct tok juniper_ifle_values[] = { 304 { JUNIPER_IFLE_AGGREGATOR, "Aggregator" }, 305 { JUNIPER_IFLE_ATM_CCC, "CCC over ATM" }, 306 { JUNIPER_IFLE_ATM_CELLRELAY_CCC, "ATM CCC Cell Relay" }, 307 { JUNIPER_IFLE_ATM_CISCO_NLPID, "CISCO compatible NLPID" }, 308 { JUNIPER_IFLE_ATM_EOA_CCC, "Ethernet over ATM CCC" }, 309 { JUNIPER_IFLE_ATM_EOA_LLC, "Ethernet over ATM LLC" }, 310 { JUNIPER_IFLE_ATM_ETHER_VPLS_ATM_LLC, "Ethernet VPLS over ATM LLC" }, 311 { JUNIPER_IFLE_ATM_LLC, "ATM LLC" }, 312 { JUNIPER_IFLE_ATM_MLPPP_LLC, "MLPPP over ATM LLC" }, 313 { JUNIPER_IFLE_ATM_NLPID, "ATM NLPID" }, 314 { JUNIPER_IFLE_ATM_PPPOE_LLC, "PPPoE over ATM LLC" }, 315 { JUNIPER_IFLE_ATM_PPP_FUNI, "PPP over FUNI" }, 316 { JUNIPER_IFLE_ATM_PPP_LLC, "PPP over ATM LLC" }, 317 { JUNIPER_IFLE_ATM_PPP_VCMUX, "PPP over ATM VCMUX" }, 318 { JUNIPER_IFLE_ATM_SNAP, "ATM SNAP" }, 319 { JUNIPER_IFLE_ATM_SNAP_TCC, "ATM SNAP TCC" }, 320 { JUNIPER_IFLE_ATM_TCC, "ATM VCMUX TCC" }, 321 { JUNIPER_IFLE_ATM_VCMUX, "ATM VCMUX" }, 322 { JUNIPER_IFLE_CISCOHDLC, "C-HDLC" }, 323 { JUNIPER_IFLE_CISCOHDLC_CCC, "C-HDLC CCC" }, 324 { JUNIPER_IFLE_CISCOHDLC_SUBORDINATE, "C-HDLC via dialer" }, 325 { JUNIPER_IFLE_CISCOHDLC_TCC, "C-HDLC TCC" }, 326 { JUNIPER_IFLE_COLLECTOR, "Collector" }, 327 { JUNIPER_IFLE_CRYPTO, "Crypto" }, 328 { JUNIPER_IFLE_ENET2, "Ethernet" }, 329 { JUNIPER_IFLE_ETHERNET_CCC, "Ethernet CCC" }, 330 { JUNIPER_IFLE_ETHERNET_EXTENDED_VLAN_VPLS, "Extended VLAN VPLS" }, 331 { JUNIPER_IFLE_ETHERNET_PPPOE, "PPPoE over Ethernet" }, 332 { JUNIPER_IFLE_ETHERNET_TCC, "Ethernet TCC" }, 333 { JUNIPER_IFLE_ETHERNET_VLAN_VPLS, "VLAN VPLS" }, 334 { JUNIPER_IFLE_ETHERNET_VPLS, "VPLS" }, 335 { JUNIPER_IFLE_EXTENDED_VLAN_CCC, "Extended VLAN CCC" }, 336 { JUNIPER_IFLE_EXTENDED_VLAN_TCC, "Extended VLAN TCC" }, 337 { JUNIPER_IFLE_FR_CCC, "FR CCC" }, 338 { JUNIPER_IFLE_FR_NLPID, "FR NLPID" }, 339 { JUNIPER_IFLE_FR_PORT_CCC, "FR CCC" }, 340 { JUNIPER_IFLE_FR_PPP, "FR PPP" }, 341 { JUNIPER_IFLE_FR_SNAP, "FR SNAP" }, 342 { JUNIPER_IFLE_FR_TCC, "FR TCC" }, 343 { JUNIPER_IFLE_GGSN, "GGSN" }, 344 { JUNIPER_IFLE_GRE_NULL, "GRE NULL" }, 345 { JUNIPER_IFLE_GRE_PPP, "PPP over GRE" }, 346 { JUNIPER_IFLE_IPIP_NULL, "IPIP" }, 347 { JUNIPER_IFLE_LAPD, "LAPD" }, 348 { JUNIPER_IFLE_LSI_NULL, "LSI Null" }, 349 { JUNIPER_IFLE_LT_VLAN, "LT VLAN" }, 350 { JUNIPER_IFLE_MFR, "MFR" }, 351 { JUNIPER_IFLE_MLFR, "MLFR" }, 352 { JUNIPER_IFLE_MLPPP, "MLPPP" }, 353 { JUNIPER_IFLE_MONITOR, "Monitor" }, 354 { JUNIPER_IFLE_PIMD_DECAPS, "PIMd" }, 355 { JUNIPER_IFLE_PIM_NULL, "PIM Null" }, 356 { JUNIPER_IFLE_PPP, "PPP" }, 357 { JUNIPER_IFLE_PPPOE, "PPPoE" }, 358 { JUNIPER_IFLE_PPP_CCC, "PPP CCC" }, 359 { JUNIPER_IFLE_PPP_SUBORDINATE, "" }, 360 { JUNIPER_IFLE_PPP_TCC, "PPP TCC" }, 361 { JUNIPER_IFLE_SERVICES, "General Services" }, 362 { JUNIPER_IFLE_VLAN_CCC, "VLAN CCC" }, 363 { JUNIPER_IFLE_VLAN_TCC, "VLAN TCC" }, 364 { JUNIPER_IFLE_VT, "VT" }, 365 {0, NULL} 366}; 367 368struct juniper_cookie_table_t { 369 u_int32_t pictype; /* pic type */ 370 u_int8_t cookie_len; /* cookie len */ 371 const char *s; /* pic name */ 372}; 373 374static struct juniper_cookie_table_t juniper_cookie_table[] = { 375#ifdef DLT_JUNIPER_ATM1 376 { DLT_JUNIPER_ATM1, 4, "ATM1"}, 377#endif 378#ifdef DLT_JUNIPER_ATM2 379 { DLT_JUNIPER_ATM2, 8, "ATM2"}, 380#endif 381#ifdef DLT_JUNIPER_MLPPP 382 { DLT_JUNIPER_MLPPP, 2, "MLPPP"}, 383#endif 384#ifdef DLT_JUNIPER_MLFR 385 { DLT_JUNIPER_MLFR, 2, "MLFR"}, 386#endif 387#ifdef DLT_JUNIPER_MFR 388 { DLT_JUNIPER_MFR, 4, "MFR"}, 389#endif 390#ifdef DLT_JUNIPER_PPPOE 391 { DLT_JUNIPER_PPPOE, 0, "PPPoE"}, 392#endif 393#ifdef DLT_JUNIPER_PPPOE_ATM 394 { DLT_JUNIPER_PPPOE_ATM, 0, "PPPoE ATM"}, 395#endif 396#ifdef DLT_JUNIPER_GGSN 397 { DLT_JUNIPER_GGSN, 8, "GGSN"}, 398#endif 399#ifdef DLT_JUNIPER_MONITOR 400 { DLT_JUNIPER_MONITOR, 8, "MONITOR"}, 401#endif 402#ifdef DLT_JUNIPER_SERVICES 403 { DLT_JUNIPER_SERVICES, 8, "AS"}, 404#endif 405#ifdef DLT_JUNIPER_ES 406 { DLT_JUNIPER_ES, 0, "ES"}, 407#endif 408 { 0, 0, NULL } 409}; 410 411struct juniper_l2info_t { 412 u_int32_t length; 413 u_int32_t caplen; 414 u_int32_t pictype; 415 u_int8_t direction; 416 u_int8_t header_len; 417 u_int8_t cookie_len; 418 u_int8_t cookie_type; 419 u_int8_t cookie[8]; 420 u_int8_t bundle; 421 u_int16_t proto; 422 u_int8_t flags; 423}; 424 425#define LS_COOKIE_ID 0x54 426#define AS_COOKIE_ID 0x47 427#define LS_MLFR_COOKIE_LEN 4 428#define ML_MLFR_COOKIE_LEN 2 429#define LS_MFR_COOKIE_LEN 6 430#define ATM1_COOKIE_LEN 4 431#define ATM2_COOKIE_LEN 8 432 433#define ATM2_PKT_TYPE_MASK 0x70 434#define ATM2_GAP_COUNT_MASK 0x3F 435 436#define JUNIPER_PROTO_NULL 1 437#define JUNIPER_PROTO_IPV4 2 438#define JUNIPER_PROTO_IPV6 6 439 440#define MFR_BE_MASK 0xc0 441 442static struct tok juniper_protocol_values[] = { 443 { JUNIPER_PROTO_NULL, "Null" }, 444 { JUNIPER_PROTO_IPV4, "IPv4" }, 445 { JUNIPER_PROTO_IPV6, "IPv6" }, 446 { 0, NULL} 447}; 448 449int ip_heuristic_guess(register const u_char *, u_int); 450int juniper_ppp_heuristic_guess(register const u_char *, u_int); 451int juniper_read_tlv_value(const u_char *, u_int, u_int); 452static int juniper_parse_header (const u_char *, const struct pcap_pkthdr *, struct juniper_l2info_t *); 453 454#ifdef DLT_JUNIPER_GGSN 455u_int 456juniper_ggsn_print(const struct pcap_pkthdr *h, register const u_char *p) 457{ 458 struct juniper_l2info_t l2info; 459 struct juniper_ggsn_header { 460 u_int8_t svc_id; 461 u_int8_t flags_len; 462 u_int8_t proto; 463 u_int8_t flags; 464 u_int8_t vlan_id[2]; 465 u_int8_t res[2]; 466 }; 467 const struct juniper_ggsn_header *gh; 468 469 l2info.pictype = DLT_JUNIPER_GGSN; 470 if(juniper_parse_header(p, h, &l2info) == 0) 471 return l2info.header_len; 472 473 p+=l2info.header_len; 474 gh = (struct juniper_ggsn_header *)&l2info.cookie; 475 476 if (eflag) { 477 printf("proto %s (%u), vlan %u: ", 478 tok2str(juniper_protocol_values,"Unknown",gh->proto), 479 gh->proto, 480 EXTRACT_16BITS(&gh->vlan_id[0])); 481 } 482 483 switch (gh->proto) { 484 case JUNIPER_PROTO_IPV4: 485 ip_print(gndo, p, l2info.length); 486 break; 487#ifdef INET6 488 case JUNIPER_PROTO_IPV6: 489 ip6_print(p, l2info.length); 490 break; 491#endif /* INET6 */ 492 default: 493 if (!eflag) 494 printf("unknown GGSN proto (%u)", gh->proto); 495 } 496 497 return l2info.header_len; 498} 499#endif 500 501#ifdef DLT_JUNIPER_ES 502u_int 503juniper_es_print(const struct pcap_pkthdr *h, register const u_char *p) 504{ 505 struct juniper_l2info_t l2info; 506 struct juniper_ipsec_header { 507 u_int8_t sa_index[2]; 508 u_int8_t ttl; 509 u_int8_t type; 510 u_int8_t spi[4]; 511 u_int8_t src_ip[4]; 512 u_int8_t dst_ip[4]; 513 }; 514 u_int rewrite_len,es_type_bundle; 515 const struct juniper_ipsec_header *ih; 516 517 l2info.pictype = DLT_JUNIPER_ES; 518 if(juniper_parse_header(p, h, &l2info) == 0) 519 return l2info.header_len; 520 521 p+=l2info.header_len; 522 ih = (struct juniper_ipsec_header *)p; 523 524 switch (ih->type) { 525 case JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE: 526 case JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE: 527 rewrite_len = 0; 528 es_type_bundle = 1; 529 break; 530 case JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE: 531 case JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE: 532 case JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE: 533 rewrite_len = 16; 534 es_type_bundle = 0; 535 default: 536 printf("ES Invalid type %u, length %u", 537 ih->type, 538 l2info.length); 539 return l2info.header_len; 540 } 541 542 l2info.length-=rewrite_len; 543 p+=rewrite_len; 544 545 if (eflag) { 546 if (!es_type_bundle) { 547 printf("ES SA, index %u, ttl %u type %s (%u), spi %u, Tunnel %s > %s, length %u\n", 548 EXTRACT_16BITS(&ih->sa_index), 549 ih->ttl, 550 tok2str(juniper_ipsec_type_values,"Unknown",ih->type), 551 ih->type, 552 EXTRACT_32BITS(&ih->spi), 553 ipaddr_string(&ih->src_ip), 554 ipaddr_string(&ih->dst_ip), 555 l2info.length); 556 } else { 557 printf("ES SA, index %u, ttl %u type %s (%u), length %u\n", 558 EXTRACT_16BITS(&ih->sa_index), 559 ih->ttl, 560 tok2str(juniper_ipsec_type_values,"Unknown",ih->type), 561 ih->type, 562 l2info.length); 563 } 564 } 565 566 ip_print(gndo, p, l2info.length); 567 return l2info.header_len; 568} 569#endif 570 571#ifdef DLT_JUNIPER_MONITOR 572u_int 573juniper_monitor_print(const struct pcap_pkthdr *h, register const u_char *p) 574{ 575 struct juniper_l2info_t l2info; 576 struct juniper_monitor_header { 577 u_int8_t pkt_type; 578 u_int8_t padding; 579 u_int8_t iif[2]; 580 u_int8_t service_id[4]; 581 }; 582 const struct juniper_monitor_header *mh; 583 584 l2info.pictype = DLT_JUNIPER_MONITOR; 585 if(juniper_parse_header(p, h, &l2info) == 0) 586 return l2info.header_len; 587 588 p+=l2info.header_len; 589 mh = (struct juniper_monitor_header *)p; 590 591 if (eflag) 592 printf("service-id %u, iif %u, pkt-type %u: ", 593 EXTRACT_32BITS(&mh->service_id), 594 EXTRACT_16BITS(&mh->iif), 595 mh->pkt_type); 596 597 /* no proto field - lets guess by first byte of IP header*/ 598 ip_heuristic_guess(p, l2info.length); 599 600 return l2info.header_len; 601} 602#endif 603 604#ifdef DLT_JUNIPER_SERVICES 605u_int 606juniper_services_print(const struct pcap_pkthdr *h, register const u_char *p) 607{ 608 struct juniper_l2info_t l2info; 609 struct juniper_services_header { 610 u_int8_t svc_id; 611 u_int8_t flags_len; 612 u_int8_t svc_set_id[2]; 613 u_int8_t dir_iif[4]; 614 }; 615 const struct juniper_services_header *sh; 616 617 l2info.pictype = DLT_JUNIPER_SERVICES; 618 if(juniper_parse_header(p, h, &l2info) == 0) 619 return l2info.header_len; 620 621 p+=l2info.header_len; 622 sh = (struct juniper_services_header *)p; 623 624 if (eflag) 625 printf("service-id %u flags 0x%02x service-set-id 0x%04x iif %u: ", 626 sh->svc_id, 627 sh->flags_len, 628 EXTRACT_16BITS(&sh->svc_set_id), 629 EXTRACT_24BITS(&sh->dir_iif[1])); 630 631 /* no proto field - lets guess by first byte of IP header*/ 632 ip_heuristic_guess(p, l2info.length); 633 634 return l2info.header_len; 635} 636#endif 637 638#ifdef DLT_JUNIPER_PPPOE 639u_int 640juniper_pppoe_print(const struct pcap_pkthdr *h, register const u_char *p) 641{ 642 struct juniper_l2info_t l2info; 643 644 l2info.pictype = DLT_JUNIPER_PPPOE; 645 if(juniper_parse_header(p, h, &l2info) == 0) 646 return l2info.header_len; 647 648 p+=l2info.header_len; 649 /* this DLT contains nothing but raw ethernet frames */ 650 ether_print(p, l2info.length, l2info.caplen); 651 return l2info.header_len; 652} 653#endif 654 655#ifdef DLT_JUNIPER_ETHER 656u_int 657juniper_ether_print(const struct pcap_pkthdr *h, register const u_char *p) 658{ 659 struct juniper_l2info_t l2info; 660 661 l2info.pictype = DLT_JUNIPER_ETHER; 662 if(juniper_parse_header(p, h, &l2info) == 0) 663 return l2info.header_len; 664 665 p+=l2info.header_len; 666 /* this DLT contains nothing but raw Ethernet frames */ 667 ether_print(p, l2info.length, l2info.caplen); 668 return l2info.header_len; 669} 670#endif 671 672#ifdef DLT_JUNIPER_PPP 673u_int 674juniper_ppp_print(const struct pcap_pkthdr *h, register const u_char *p) 675{ 676 struct juniper_l2info_t l2info; 677 678 l2info.pictype = DLT_JUNIPER_PPP; 679 if(juniper_parse_header(p, h, &l2info) == 0) 680 return l2info.header_len; 681 682 p+=l2info.header_len; 683 /* this DLT contains nothing but raw ppp frames */ 684 ppp_print(p, l2info.length); 685 return l2info.header_len; 686} 687#endif 688 689#ifdef DLT_JUNIPER_FRELAY 690u_int 691juniper_frelay_print(const struct pcap_pkthdr *h, register const u_char *p) 692{ 693 struct juniper_l2info_t l2info; 694 695 l2info.pictype = DLT_JUNIPER_FRELAY; 696 if(juniper_parse_header(p, h, &l2info) == 0) 697 return l2info.header_len; 698 699 p+=l2info.header_len; 700 /* this DLT contains nothing but raw frame-relay frames */ 701 fr_print(p, l2info.length); 702 return l2info.header_len; 703} 704#endif 705 706#ifdef DLT_JUNIPER_CHDLC 707u_int 708juniper_chdlc_print(const struct pcap_pkthdr *h, register const u_char *p) 709{ 710 struct juniper_l2info_t l2info; 711 712 l2info.pictype = DLT_JUNIPER_CHDLC; 713 if(juniper_parse_header(p, h, &l2info) == 0) 714 return l2info.header_len; 715 716 p+=l2info.header_len; 717 /* this DLT contains nothing but raw c-hdlc frames */ 718 chdlc_print(p, l2info.length); 719 return l2info.header_len; 720} 721#endif 722 723#ifdef DLT_JUNIPER_PPPOE_ATM 724u_int 725juniper_pppoe_atm_print(const struct pcap_pkthdr *h, register const u_char *p) 726{ 727 struct juniper_l2info_t l2info; 728 u_int16_t extracted_ethertype; 729 730 l2info.pictype = DLT_JUNIPER_PPPOE_ATM; 731 if(juniper_parse_header(p, h, &l2info) == 0) 732 return l2info.header_len; 733 734 p+=l2info.header_len; 735 736 extracted_ethertype = EXTRACT_16BITS(p); 737 /* this DLT contains nothing but raw PPPoE frames, 738 * prepended with a type field*/ 739 if (ether_encap_print(extracted_ethertype, 740 p+ETHERTYPE_LEN, 741 l2info.length-ETHERTYPE_LEN, 742 l2info.caplen-ETHERTYPE_LEN, 743 &extracted_ethertype) == 0) 744 /* ether_type not known, probably it wasn't one */ 745 printf("unknown ethertype 0x%04x", extracted_ethertype); 746 747 return l2info.header_len; 748} 749#endif 750 751#ifdef DLT_JUNIPER_MLPPP 752u_int 753juniper_mlppp_print(const struct pcap_pkthdr *h, register const u_char *p) 754{ 755 struct juniper_l2info_t l2info; 756 757 l2info.pictype = DLT_JUNIPER_MLPPP; 758 if(juniper_parse_header(p, h, &l2info) == 0) 759 return l2info.header_len; 760 761 /* suppress Bundle-ID if frame was captured on a child-link 762 * best indicator if the cookie looks like a proto */ 763 if (eflag && 764 EXTRACT_16BITS(&l2info.cookie) != PPP_OSI && 765 EXTRACT_16BITS(&l2info.cookie) != (PPP_ADDRESS << 8 | PPP_CONTROL)) 766 printf("Bundle-ID %u: ",l2info.bundle); 767 768 p+=l2info.header_len; 769 770 /* first try the LSQ protos */ 771 switch(l2info.proto) { 772 case JUNIPER_LSQ_L3_PROTO_IPV4: 773 /* IP traffic going to the RE would not have a cookie 774 * -> this must be incoming IS-IS over PPP 775 */ 776 if (l2info.cookie[4] == (JUNIPER_LSQ_COOKIE_RE|JUNIPER_LSQ_COOKIE_DIR)) 777 ppp_print(p, l2info.length); 778 else 779 ip_print(gndo, p, l2info.length); 780 return l2info.header_len; 781#ifdef INET6 782 case JUNIPER_LSQ_L3_PROTO_IPV6: 783 ip6_print(p,l2info.length); 784 return l2info.header_len; 785#endif 786 case JUNIPER_LSQ_L3_PROTO_MPLS: 787 mpls_print(p,l2info.length); 788 return l2info.header_len; 789 case JUNIPER_LSQ_L3_PROTO_ISO: 790 isoclns_print(p,l2info.length,l2info.caplen); 791 return l2info.header_len; 792 default: 793 break; 794 } 795 796 /* zero length cookie ? */ 797 switch (EXTRACT_16BITS(&l2info.cookie)) { 798 case PPP_OSI: 799 ppp_print(p-2,l2info.length+2); 800 break; 801 case (PPP_ADDRESS << 8 | PPP_CONTROL): /* fall through */ 802 default: 803 ppp_print(p,l2info.length); 804 break; 805 } 806 807 return l2info.header_len; 808} 809#endif 810 811 812#ifdef DLT_JUNIPER_MFR 813u_int 814juniper_mfr_print(const struct pcap_pkthdr *h, register const u_char *p) 815{ 816 struct juniper_l2info_t l2info; 817 818 l2info.pictype = DLT_JUNIPER_MFR; 819 if(juniper_parse_header(p, h, &l2info) == 0) 820 return l2info.header_len; 821 822 p+=l2info.header_len; 823 824 /* child-link ? */ 825 if (l2info.cookie_len == 0) { 826 mfr_print(p,l2info.length); 827 return l2info.header_len; 828 } 829 830 /* first try the LSQ protos */ 831 if (l2info.cookie_len == AS_PIC_COOKIE_LEN) { 832 switch(l2info.proto) { 833 case JUNIPER_LSQ_L3_PROTO_IPV4: 834 ip_print(gndo, p, l2info.length); 835 return l2info.header_len; 836#ifdef INET6 837 case JUNIPER_LSQ_L3_PROTO_IPV6: 838 ip6_print(p,l2info.length); 839 return l2info.header_len; 840#endif 841 case JUNIPER_LSQ_L3_PROTO_MPLS: 842 mpls_print(p,l2info.length); 843 return l2info.header_len; 844 case JUNIPER_LSQ_L3_PROTO_ISO: 845 isoclns_print(p,l2info.length,l2info.caplen); 846 return l2info.header_len; 847 default: 848 break; 849 } 850 return l2info.header_len; 851 } 852 853 /* suppress Bundle-ID if frame was captured on a child-link */ 854 if (eflag && EXTRACT_32BITS(l2info.cookie) != 1) printf("Bundle-ID %u, ",l2info.bundle); 855 switch (l2info.proto) { 856 case (LLCSAP_ISONS<<8 | LLCSAP_ISONS): 857 isoclns_print(p+1, l2info.length-1, l2info.caplen-1); 858 break; 859 case (LLC_UI<<8 | NLPID_Q933): 860 case (LLC_UI<<8 | NLPID_IP): 861 case (LLC_UI<<8 | NLPID_IP6): 862 /* pass IP{4,6} to the OSI layer for proper link-layer printing */ 863 isoclns_print(p-1, l2info.length+1, l2info.caplen+1); 864 break; 865 default: 866 printf("unknown protocol 0x%04x, length %u",l2info.proto, l2info.length); 867 } 868 869 return l2info.header_len; 870} 871#endif 872 873#ifdef DLT_JUNIPER_MLFR 874u_int 875juniper_mlfr_print(const struct pcap_pkthdr *h, register const u_char *p) 876{ 877 struct juniper_l2info_t l2info; 878 879 l2info.pictype = DLT_JUNIPER_MLFR; 880 if(juniper_parse_header(p, h, &l2info) == 0) 881 return l2info.header_len; 882 883 p+=l2info.header_len; 884 885 /* suppress Bundle-ID if frame was captured on a child-link */ 886 if (eflag && EXTRACT_32BITS(l2info.cookie) != 1) printf("Bundle-ID %u, ",l2info.bundle); 887 switch (l2info.proto) { 888 case (LLC_UI): 889 case (LLC_UI<<8): 890 isoclns_print(p, l2info.length, l2info.caplen); 891 break; 892 case (LLC_UI<<8 | NLPID_Q933): 893 case (LLC_UI<<8 | NLPID_IP): 894 case (LLC_UI<<8 | NLPID_IP6): 895 /* pass IP{4,6} to the OSI layer for proper link-layer printing */ 896 isoclns_print(p-1, l2info.length+1, l2info.caplen+1); 897 break; 898 default: 899 printf("unknown protocol 0x%04x, length %u",l2info.proto, l2info.length); 900 } 901 902 return l2info.header_len; 903} 904#endif 905 906/* 907 * ATM1 PIC cookie format 908 * 909 * +-----+-------------------------+-------------------------------+ 910 * |fmtid| vc index | channel ID | 911 * +-----+-------------------------+-------------------------------+ 912 */ 913 914#ifdef DLT_JUNIPER_ATM1 915u_int 916juniper_atm1_print(const struct pcap_pkthdr *h, register const u_char *p) 917{ 918 u_int16_t extracted_ethertype; 919 920 struct juniper_l2info_t l2info; 921 922 l2info.pictype = DLT_JUNIPER_ATM1; 923 if(juniper_parse_header(p, h, &l2info) == 0) 924 return l2info.header_len; 925 926 p+=l2info.header_len; 927 928 if (l2info.cookie[0] == 0x80) { /* OAM cell ? */ 929 oam_print(p,l2info.length,ATM_OAM_NOHEC); 930 return l2info.header_len; 931 } 932 933 if (EXTRACT_24BITS(p) == 0xfefe03 || /* NLPID encaps ? */ 934 EXTRACT_24BITS(p) == 0xaaaa03) { /* SNAP encaps ? */ 935 936 if (llc_print(p, l2info.length, l2info.caplen, NULL, NULL, 937 &extracted_ethertype) != 0) 938 return l2info.header_len; 939 } 940 941 if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */ 942 isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1); 943 /* FIXME check if frame was recognized */ 944 return l2info.header_len; 945 } 946 947 if(ip_heuristic_guess(p, l2info.length) != 0) /* last try - vcmux encaps ? */ 948 return l2info.header_len; 949 950 return l2info.header_len; 951} 952#endif 953 954/* 955 * ATM2 PIC cookie format 956 * 957 * +-------------------------------+---------+---+-----+-----------+ 958 * | channel ID | reserv |AAL| CCRQ| gap cnt | 959 * +-------------------------------+---------+---+-----+-----------+ 960 */ 961 962#ifdef DLT_JUNIPER_ATM2 963u_int 964juniper_atm2_print(const struct pcap_pkthdr *h, register const u_char *p) 965{ 966 u_int16_t extracted_ethertype; 967 968 struct juniper_l2info_t l2info; 969 970 l2info.pictype = DLT_JUNIPER_ATM2; 971 if(juniper_parse_header(p, h, &l2info) == 0) 972 return l2info.header_len; 973 974 p+=l2info.header_len; 975 976 if (l2info.cookie[7] & ATM2_PKT_TYPE_MASK) { /* OAM cell ? */ 977 oam_print(p,l2info.length,ATM_OAM_NOHEC); 978 return l2info.header_len; 979 } 980 981 if (EXTRACT_24BITS(p) == 0xfefe03 || /* NLPID encaps ? */ 982 EXTRACT_24BITS(p) == 0xaaaa03) { /* SNAP encaps ? */ 983 984 if (llc_print(p, l2info.length, l2info.caplen, NULL, NULL, 985 &extracted_ethertype) != 0) 986 return l2info.header_len; 987 } 988 989 if (l2info.direction != JUNIPER_BPF_PKT_IN && /* ether-over-1483 encaps ? */ 990 (EXTRACT_32BITS(l2info.cookie) & ATM2_GAP_COUNT_MASK)) { 991 ether_print(p, l2info.length, l2info.caplen); 992 return l2info.header_len; 993 } 994 995 if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */ 996 isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1); 997 /* FIXME check if frame was recognized */ 998 return l2info.header_len; 999 } 1000 1001 if(juniper_ppp_heuristic_guess(p, l2info.length) != 0) /* PPPoA vcmux encaps ? */ 1002 return l2info.header_len; 1003 1004 if(ip_heuristic_guess(p, l2info.length) != 0) /* last try - vcmux encaps ? */ 1005 return l2info.header_len; 1006 1007 return l2info.header_len; 1008} 1009#endif 1010 1011 1012/* try to guess, based on all PPP protos that are supported in 1013 * a juniper router if the payload data is encapsulated using PPP */ 1014int 1015juniper_ppp_heuristic_guess(register const u_char *p, u_int length) { 1016 1017 switch(EXTRACT_16BITS(p)) { 1018 case PPP_IP : 1019 case PPP_OSI : 1020 case PPP_MPLS_UCAST : 1021 case PPP_MPLS_MCAST : 1022 case PPP_IPCP : 1023 case PPP_OSICP : 1024 case PPP_MPLSCP : 1025 case PPP_LCP : 1026 case PPP_PAP : 1027 case PPP_CHAP : 1028 case PPP_ML : 1029#ifdef INET6 1030 case PPP_IPV6 : 1031 case PPP_IPV6CP : 1032#endif 1033 ppp_print(p, length); 1034 break; 1035 1036 default: 1037 return 0; /* did not find a ppp header */ 1038 break; 1039 } 1040 return 1; /* we printed a ppp packet */ 1041} 1042 1043int 1044ip_heuristic_guess(register const u_char *p, u_int length) { 1045 1046 switch(p[0]) { 1047 case 0x45: 1048 case 0x46: 1049 case 0x47: 1050 case 0x48: 1051 case 0x49: 1052 case 0x4a: 1053 case 0x4b: 1054 case 0x4c: 1055 case 0x4d: 1056 case 0x4e: 1057 case 0x4f: 1058 ip_print(gndo, p, length); 1059 break; 1060#ifdef INET6 1061 case 0x60: 1062 case 0x61: 1063 case 0x62: 1064 case 0x63: 1065 case 0x64: 1066 case 0x65: 1067 case 0x66: 1068 case 0x67: 1069 case 0x68: 1070 case 0x69: 1071 case 0x6a: 1072 case 0x6b: 1073 case 0x6c: 1074 case 0x6d: 1075 case 0x6e: 1076 case 0x6f: 1077 ip6_print(p, length); 1078 break; 1079#endif 1080 default: 1081 return 0; /* did not find a ip header */ 1082 break; 1083 } 1084 return 1; /* we printed an v4/v6 packet */ 1085} 1086 1087int 1088juniper_read_tlv_value(const u_char *p, u_int tlv_type, u_int tlv_len) { 1089 1090 int tlv_value; 1091 1092 /* TLVs < 128 are little endian encoded */ 1093 if (tlv_type < 128) { 1094 switch (tlv_len) { 1095 case 1: 1096 tlv_value = *p; 1097 break; 1098 case 2: 1099 tlv_value = EXTRACT_LE_16BITS(p); 1100 break; 1101 case 3: 1102 tlv_value = EXTRACT_LE_24BITS(p); 1103 break; 1104 case 4: 1105 tlv_value = EXTRACT_LE_32BITS(p); 1106 break; 1107 default: 1108 tlv_value = -1; 1109 break; 1110 } 1111 } else { 1112 /* TLVs >= 128 are big endian encoded */ 1113 switch (tlv_len) { 1114 case 1: 1115 tlv_value = *p; 1116 break; 1117 case 2: 1118 tlv_value = EXTRACT_16BITS(p); 1119 break; 1120 case 3: 1121 tlv_value = EXTRACT_24BITS(p); 1122 break; 1123 case 4: 1124 tlv_value = EXTRACT_32BITS(p); 1125 break; 1126 default: 1127 tlv_value = -1; 1128 break; 1129 } 1130 } 1131 return tlv_value; 1132} 1133 1134static int 1135juniper_parse_header (const u_char *p, const struct pcap_pkthdr *h, struct juniper_l2info_t *l2info) { 1136 1137 struct juniper_cookie_table_t *lp = juniper_cookie_table; 1138 u_int idx, jnx_ext_len, jnx_header_len = 0; 1139 u_int8_t tlv_type,tlv_len; 1140 u_int32_t control_word; 1141 int tlv_value; 1142 const u_char *tptr; 1143 1144 1145 l2info->header_len = 0; 1146 l2info->cookie_len = 0; 1147 l2info->proto = 0; 1148 1149 1150 l2info->length = h->len; 1151 l2info->caplen = h->caplen; 1152 TCHECK2(p[0],4); 1153 l2info->flags = p[3]; 1154 l2info->direction = p[3]&JUNIPER_BPF_PKT_IN; 1155 1156 if (EXTRACT_24BITS(p) != JUNIPER_MGC_NUMBER) { /* magic number found ? */ 1157 printf("no magic-number found!"); 1158 return 0; 1159 } 1160 1161 if (eflag) /* print direction */ 1162 printf("%3s ",tok2str(juniper_direction_values,"---",l2info->direction)); 1163 1164 /* magic number + flags */ 1165 jnx_header_len = 4; 1166 1167 if (vflag>1) 1168 printf("\n\tJuniper PCAP Flags [%s]", 1169 bittok2str(jnx_flag_values, "none", l2info->flags)); 1170 1171 /* extensions present ? - calculate how much bytes to skip */ 1172 if ((l2info->flags & JUNIPER_BPF_EXT ) == JUNIPER_BPF_EXT ) { 1173 1174 tptr = p+jnx_header_len; 1175 1176 /* ok to read extension length ? */ 1177 TCHECK2(tptr[0], 2); 1178 jnx_ext_len = EXTRACT_16BITS(tptr); 1179 jnx_header_len += 2; 1180 tptr +=2; 1181 1182 /* nail up the total length - 1183 * just in case something goes wrong 1184 * with TLV parsing */ 1185 jnx_header_len += jnx_ext_len; 1186 1187 if (vflag>1) 1188 printf(", PCAP Extension(s) total length %u", 1189 jnx_ext_len); 1190 1191 TCHECK2(tptr[0], jnx_ext_len); 1192 while (jnx_ext_len > JUNIPER_EXT_TLV_OVERHEAD) { 1193 tlv_type = *(tptr++); 1194 tlv_len = *(tptr++); 1195 tlv_value = 0; 1196 1197 /* sanity check */ 1198 if (tlv_type == 0 || tlv_len == 0) 1199 break; 1200 1201 if (vflag>1) 1202 printf("\n\t %s Extension TLV #%u, length %u, value ", 1203 tok2str(jnx_ext_tlv_values,"Unknown",tlv_type), 1204 tlv_type, 1205 tlv_len); 1206 1207 tlv_value = juniper_read_tlv_value(tptr, tlv_type, tlv_len); 1208 switch (tlv_type) { 1209 case JUNIPER_EXT_TLV_IFD_NAME: 1210 /* FIXME */ 1211 break; 1212 case JUNIPER_EXT_TLV_IFD_MEDIATYPE: 1213 case JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE: 1214 if (tlv_value != -1) { 1215 if (vflag>1) 1216 printf("%s (%u)", 1217 tok2str(juniper_ifmt_values, "Unknown", tlv_value), 1218 tlv_value); 1219 } 1220 break; 1221 case JUNIPER_EXT_TLV_IFL_ENCAPS: 1222 case JUNIPER_EXT_TLV_TTP_IFL_ENCAPS: 1223 if (tlv_value != -1) { 1224 if (vflag>1) 1225 printf("%s (%u)", 1226 tok2str(juniper_ifle_values, "Unknown", tlv_value), 1227 tlv_value); 1228 } 1229 break; 1230 case JUNIPER_EXT_TLV_IFL_IDX: /* fall through */ 1231 case JUNIPER_EXT_TLV_IFL_UNIT: 1232 case JUNIPER_EXT_TLV_IFD_IDX: 1233 default: 1234 if (tlv_value != -1) { 1235 if (vflag>1) 1236 printf("%u",tlv_value); 1237 } 1238 break; 1239 } 1240 1241 tptr+=tlv_len; 1242 jnx_ext_len -= tlv_len+JUNIPER_EXT_TLV_OVERHEAD; 1243 } 1244 1245 if (vflag>1) 1246 printf("\n\t-----original packet-----\n\t"); 1247 } 1248 1249 if ((l2info->flags & JUNIPER_BPF_NO_L2 ) == JUNIPER_BPF_NO_L2 ) { 1250 if (eflag) 1251 printf("no-L2-hdr, "); 1252 1253 /* there is no link-layer present - 1254 * perform the v4/v6 heuristics 1255 * to figure out what it is 1256 */ 1257 TCHECK2(p[jnx_header_len+4],1); 1258 if(ip_heuristic_guess(p+jnx_header_len+4,l2info->length-(jnx_header_len+4)) == 0) 1259 printf("no IP-hdr found!"); 1260 1261 l2info->header_len=jnx_header_len+4; 1262 return 0; /* stop parsing the output further */ 1263 1264 } 1265 l2info->header_len = jnx_header_len; 1266 p+=l2info->header_len; 1267 l2info->length -= l2info->header_len; 1268 l2info->caplen -= l2info->header_len; 1269 1270 /* search through the cookie table and copy values matching for our PIC type */ 1271 while (lp->s != NULL) { 1272 if (lp->pictype == l2info->pictype) { 1273 1274 l2info->cookie_len += lp->cookie_len; 1275 1276 switch (p[0]) { 1277 case LS_COOKIE_ID: 1278 l2info->cookie_type = LS_COOKIE_ID; 1279 l2info->cookie_len += 2; 1280 break; 1281 case AS_COOKIE_ID: 1282 l2info->cookie_type = AS_COOKIE_ID; 1283 l2info->cookie_len = 8; 1284 break; 1285 1286 default: 1287 l2info->bundle = l2info->cookie[0]; 1288 break; 1289 } 1290 1291 1292#ifdef DLT_JUNIPER_MFR 1293 /* MFR child links don't carry cookies */ 1294 if (l2info->pictype == DLT_JUNIPER_MFR && 1295 (p[0] & MFR_BE_MASK) == MFR_BE_MASK) { 1296 l2info->cookie_len = 0; 1297 } 1298#endif 1299 1300 l2info->header_len += l2info->cookie_len; 1301 l2info->length -= l2info->cookie_len; 1302 l2info->caplen -= l2info->cookie_len; 1303 1304 if (eflag) 1305 printf("%s-PIC, cookie-len %u", 1306 lp->s, 1307 l2info->cookie_len); 1308 1309 if (l2info->cookie_len > 0) { 1310 TCHECK2(p[0],l2info->cookie_len); 1311 if (eflag) 1312 printf(", cookie 0x"); 1313 for (idx = 0; idx < l2info->cookie_len; idx++) { 1314 l2info->cookie[idx] = p[idx]; /* copy cookie data */ 1315 if (eflag) printf("%02x",p[idx]); 1316 } 1317 } 1318 1319 if (eflag) printf(": "); /* print demarc b/w L2/L3*/ 1320 1321 1322 l2info->proto = EXTRACT_16BITS(p+l2info->cookie_len); 1323 break; 1324 } 1325 ++lp; 1326 } 1327 p+=l2info->cookie_len; 1328 1329 /* DLT_ specific parsing */ 1330 switch(l2info->pictype) { 1331#ifdef DLT_JUNIPER_MLPPP 1332 case DLT_JUNIPER_MLPPP: 1333 switch (l2info->cookie_type) { 1334 case LS_COOKIE_ID: 1335 l2info->bundle = l2info->cookie[1]; 1336 break; 1337 case AS_COOKIE_ID: 1338 l2info->bundle = (EXTRACT_16BITS(&l2info->cookie[6])>>3)&0xfff; 1339 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK; 1340 break; 1341 default: 1342 l2info->bundle = l2info->cookie[0]; 1343 break; 1344 } 1345 break; 1346#endif 1347#ifdef DLT_JUNIPER_MLFR 1348 case DLT_JUNIPER_MLFR: 1349 switch (l2info->cookie_type) { 1350 case LS_COOKIE_ID: 1351 l2info->bundle = l2info->cookie[1]; 1352 l2info->proto = EXTRACT_16BITS(p); 1353 l2info->header_len += 2; 1354 l2info->length -= 2; 1355 l2info->caplen -= 2; 1356 break; 1357 case AS_COOKIE_ID: 1358 l2info->bundle = (EXTRACT_16BITS(&l2info->cookie[6])>>3)&0xfff; 1359 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK; 1360 break; 1361 default: 1362 l2info->bundle = l2info->cookie[0]; 1363 l2info->header_len += 2; 1364 l2info->length -= 2; 1365 l2info->caplen -= 2; 1366 break; 1367 } 1368 break; 1369#endif 1370#ifdef DLT_JUNIPER_MFR 1371 case DLT_JUNIPER_MFR: 1372 switch (l2info->cookie_type) { 1373 case LS_COOKIE_ID: 1374 l2info->bundle = l2info->cookie[1]; 1375 l2info->proto = EXTRACT_16BITS(p); 1376 l2info->header_len += 2; 1377 l2info->length -= 2; 1378 l2info->caplen -= 2; 1379 break; 1380 case AS_COOKIE_ID: 1381 l2info->bundle = (EXTRACT_16BITS(&l2info->cookie[6])>>3)&0xfff; 1382 l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK; 1383 break; 1384 default: 1385 l2info->bundle = l2info->cookie[0]; 1386 break; 1387 } 1388 break; 1389#endif 1390#ifdef DLT_JUNIPER_ATM2 1391 case DLT_JUNIPER_ATM2: 1392 TCHECK2(p[0],4); 1393 /* ATM cell relay control word present ? */ 1394 if (l2info->cookie[7] & ATM2_PKT_TYPE_MASK) { 1395 control_word = EXTRACT_32BITS(p); 1396 /* some control word heuristics */ 1397 switch(control_word) { 1398 case 0: /* zero control word */ 1399 case 0x08000000: /* < JUNOS 7.4 control-word */ 1400 case 0x08380000: /* cntl word plus cell length (56) >= JUNOS 7.4*/ 1401 l2info->header_len += 4; 1402 break; 1403 default: 1404 break; 1405 } 1406 1407 if (eflag) 1408 printf("control-word 0x%08x ", control_word); 1409 } 1410 break; 1411#endif 1412#ifdef DLT_JUNIPER_GGSN 1413 case DLT_JUNIPER_GGSN: 1414 break; 1415#endif 1416#ifdef DLT_JUNIPER_ATM1 1417 case DLT_JUNIPER_ATM1: 1418 break; 1419#endif 1420#ifdef DLT_JUNIPER_PPP 1421 case DLT_JUNIPER_PPP: 1422 break; 1423#endif 1424#ifdef DLT_JUNIPER_CHDLC 1425 case DLT_JUNIPER_CHDLC: 1426 break; 1427#endif 1428#ifdef DLT_JUNIPER_ETHER 1429 case DLT_JUNIPER_ETHER: 1430 break; 1431#endif 1432#ifdef DLT_JUNIPER_FRELAY 1433 case DLT_JUNIPER_FRELAY: 1434 break; 1435#endif 1436 1437 default: 1438 printf("Unknown Juniper DLT_ type %u: ", l2info->pictype); 1439 break; 1440 } 1441 1442 if (eflag > 1) 1443 printf("hlen %u, proto 0x%04x, ",l2info->header_len,l2info->proto); 1444 1445 return 1; /* everything went ok so far. continue parsing */ 1446 trunc: 1447 printf("[|juniper_hdr], length %u",h->len); 1448 return 0; 1449} 1450 1451 1452/* 1453 * Local Variables: 1454 * c-style: whitesmith 1455 * c-basic-offset: 4 1456 * End: 1457 */ 1458