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Diffstat (limited to 'contrib/tcpdump/print-juniper.c')
| -rw-r--r-- | contrib/tcpdump/print-juniper.c | 1457 |
1 files changed, 1457 insertions, 0 deletions
diff --git a/contrib/tcpdump/print-juniper.c b/contrib/tcpdump/print-juniper.c new file mode 100644 index 0000000..08a929f --- /dev/null +++ b/contrib/tcpdump/print-juniper.c @@ -0,0 +1,1457 @@ +/* NetBSD: print-juniper.c,v 1.2 2007/07/24 11:53:45 drochner Exp */ + +/* + * 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@juniper.net) + */ + +#ifndef lint +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/tcpdump/print-juniper.c,v 1.34 2007-08-29 02:31:44 mcr Exp $ (LBL)"; +#else +__RCSID("NetBSD: print-juniper.c,v 1.3 2007/07/25 06:31:32 dogcow Exp "); +#endif + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <tcpdump-stdinc.h> + +#include <pcap.h> +#include <stdio.h> + +#include "interface.h" +#include "addrtoname.h" +#include "extract.h" +#include "ppp.h" +#include "llc.h" +#include "nlpid.h" +#include "ethertype.h" +#include "atm.h" + +#define JUNIPER_BPF_OUT 0 /* Outgoing packet */ +#define JUNIPER_BPF_IN 1 /* Incoming packet */ +#define JUNIPER_BPF_PKT_IN 0x1 /* Incoming packet */ +#define JUNIPER_BPF_NO_L2 0x2 /* L2 header stripped */ +#define JUNIPER_BPF_IIF 0x4 /* IIF is valid */ +#define JUNIPER_BPF_FILTER 0x40 /* BPF filtering is supported */ +#define JUNIPER_BPF_EXT 0x80 /* extensions present */ +#define JUNIPER_MGC_NUMBER 0x4d4743 /* = "MGC" */ + +#define JUNIPER_LSQ_COOKIE_RE (1 << 3) +#define JUNIPER_LSQ_COOKIE_DIR (1 << 2) +#define JUNIPER_LSQ_L3_PROTO_SHIFT 4 +#define JUNIPER_LSQ_L3_PROTO_MASK (0x17 << JUNIPER_LSQ_L3_PROTO_SHIFT) +#define JUNIPER_LSQ_L3_PROTO_IPV4 (0 << JUNIPER_LSQ_L3_PROTO_SHIFT) +#define JUNIPER_LSQ_L3_PROTO_IPV6 (1 << JUNIPER_LSQ_L3_PROTO_SHIFT) +#define JUNIPER_LSQ_L3_PROTO_MPLS (2 << JUNIPER_LSQ_L3_PROTO_SHIFT) +#define JUNIPER_LSQ_L3_PROTO_ISO (3 << JUNIPER_LSQ_L3_PROTO_SHIFT) +#define AS_PIC_COOKIE_LEN 8 + +#define JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE 1 +#define JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE 2 +#define JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE 3 +#define JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE 4 +#define JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE 5 + +static struct tok juniper_ipsec_type_values[] = { + { JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE, "ESP ENCR-AUTH" }, + { JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE, "ESP ENCR-AH AUTH" }, + { JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE, "ESP AUTH" }, + { JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE, "AH AUTH" }, + { JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE, "ESP ENCR" }, + { 0, NULL} +}; + +static struct tok juniper_direction_values[] = { + { JUNIPER_BPF_IN, "In"}, + { JUNIPER_BPF_OUT, "Out"}, + { 0, NULL} +}; + +/* codepoints for encoding extensions to a .pcap file */ +enum { + JUNIPER_EXT_TLV_IFD_IDX = 1, + JUNIPER_EXT_TLV_IFD_NAME = 2, + JUNIPER_EXT_TLV_IFD_MEDIATYPE = 3, + JUNIPER_EXT_TLV_IFL_IDX = 4, + JUNIPER_EXT_TLV_IFL_UNIT = 5, + JUNIPER_EXT_TLV_IFL_ENCAPS = 6, + JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE = 7, + JUNIPER_EXT_TLV_TTP_IFL_ENCAPS = 8 +}; + +/* 1 byte type and 1-byte length */ +#define JUNIPER_EXT_TLV_OVERHEAD 2 + +struct tok jnx_ext_tlv_values[] = { + { JUNIPER_EXT_TLV_IFD_IDX, "Device Interface Index" }, + { JUNIPER_EXT_TLV_IFD_NAME,"Device Interface Name" }, + { JUNIPER_EXT_TLV_IFD_MEDIATYPE, "Device Media Type" }, + { JUNIPER_EXT_TLV_IFL_IDX, "Logical Interface Index" }, + { JUNIPER_EXT_TLV_IFL_UNIT,"Logical Unit Number" }, + { JUNIPER_EXT_TLV_IFL_ENCAPS, "Logical Interface Encapsulation" }, + { JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE, "TTP derived Device Media Type" }, + { JUNIPER_EXT_TLV_TTP_IFL_ENCAPS, "TTP derived Logical Interface Encapsulation" }, + { 0, NULL } +}; + +struct tok jnx_flag_values[] = { + { JUNIPER_BPF_EXT, "Ext" }, + { JUNIPER_BPF_FILTER, "Filter" }, + { JUNIPER_BPF_IIF, "IIF" }, + { JUNIPER_BPF_NO_L2, "no-L2" }, + { JUNIPER_BPF_PKT_IN, "In" }, + { 0, NULL } +}; + +#define JUNIPER_IFML_ETHER 1 +#define JUNIPER_IFML_FDDI 2 +#define JUNIPER_IFML_TOKENRING 3 +#define JUNIPER_IFML_PPP 4 +#define JUNIPER_IFML_FRAMERELAY 5 +#define JUNIPER_IFML_CISCOHDLC 6 +#define JUNIPER_IFML_SMDSDXI 7 +#define JUNIPER_IFML_ATMPVC 8 +#define JUNIPER_IFML_PPP_CCC 9 +#define JUNIPER_IFML_FRAMERELAY_CCC 10 +#define JUNIPER_IFML_IPIP 11 +#define JUNIPER_IFML_GRE 12 +#define JUNIPER_IFML_PIM 13 +#define JUNIPER_IFML_PIMD 14 +#define JUNIPER_IFML_CISCOHDLC_CCC 15 +#define JUNIPER_IFML_VLAN_CCC 16 +#define JUNIPER_IFML_MLPPP 17 +#define JUNIPER_IFML_MLFR 18 +#define JUNIPER_IFML_ML 19 +#define JUNIPER_IFML_LSI 20 +#define JUNIPER_IFML_DFE 21 +#define JUNIPER_IFML_ATM_CELLRELAY_CCC 22 +#define JUNIPER_IFML_CRYPTO 23 +#define JUNIPER_IFML_GGSN 24 +#define JUNIPER_IFML_LSI_PPP 25 +#define JUNIPER_IFML_LSI_CISCOHDLC 26 +#define JUNIPER_IFML_PPP_TCC 27 +#define JUNIPER_IFML_FRAMERELAY_TCC 28 +#define JUNIPER_IFML_CISCOHDLC_TCC 29 +#define JUNIPER_IFML_ETHERNET_CCC 30 +#define JUNIPER_IFML_VT 31 +#define JUNIPER_IFML_EXTENDED_VLAN_CCC 32 +#define JUNIPER_IFML_ETHER_OVER_ATM 33 +#define JUNIPER_IFML_MONITOR 34 +#define JUNIPER_IFML_ETHERNET_TCC 35 +#define JUNIPER_IFML_VLAN_TCC 36 +#define JUNIPER_IFML_EXTENDED_VLAN_TCC 37 +#define JUNIPER_IFML_CONTROLLER 38 +#define JUNIPER_IFML_MFR 39 +#define JUNIPER_IFML_LS 40 +#define JUNIPER_IFML_ETHERNET_VPLS 41 +#define JUNIPER_IFML_ETHERNET_VLAN_VPLS 42 +#define JUNIPER_IFML_ETHERNET_EXTENDED_VLAN_VPLS 43 +#define JUNIPER_IFML_LT 44 +#define JUNIPER_IFML_SERVICES 45 +#define JUNIPER_IFML_ETHER_VPLS_OVER_ATM 46 +#define JUNIPER_IFML_FR_PORT_CCC 47 +#define JUNIPER_IFML_FRAMERELAY_EXT_CCC 48 +#define JUNIPER_IFML_FRAMERELAY_EXT_TCC 49 +#define JUNIPER_IFML_FRAMERELAY_FLEX 50 +#define JUNIPER_IFML_GGSNI 51 +#define JUNIPER_IFML_ETHERNET_FLEX 52 +#define JUNIPER_IFML_COLLECTOR 53 +#define JUNIPER_IFML_AGGREGATOR 54 +#define JUNIPER_IFML_LAPD 55 +#define JUNIPER_IFML_PPPOE 56 +#define JUNIPER_IFML_PPP_SUBORDINATE 57 +#define JUNIPER_IFML_CISCOHDLC_SUBORDINATE 58 +#define JUNIPER_IFML_DFC 59 +#define JUNIPER_IFML_PICPEER 60 + +struct tok juniper_ifmt_values[] = { + { JUNIPER_IFML_ETHER, "Ethernet" }, + { JUNIPER_IFML_FDDI, "FDDI" }, + { JUNIPER_IFML_TOKENRING, "Token-Ring" }, + { JUNIPER_IFML_PPP, "PPP" }, + { JUNIPER_IFML_PPP_SUBORDINATE, "PPP-Subordinate" }, + { JUNIPER_IFML_FRAMERELAY, "Frame-Relay" }, + { JUNIPER_IFML_CISCOHDLC, "Cisco-HDLC" }, + { JUNIPER_IFML_SMDSDXI, "SMDS-DXI" }, + { JUNIPER_IFML_ATMPVC, "ATM-PVC" }, + { JUNIPER_IFML_PPP_CCC, "PPP-CCC" }, + { JUNIPER_IFML_FRAMERELAY_CCC, "Frame-Relay-CCC" }, + { JUNIPER_IFML_FRAMERELAY_EXT_CCC, "Extended FR-CCC" }, + { JUNIPER_IFML_IPIP, "IP-over-IP" }, + { JUNIPER_IFML_GRE, "GRE" }, + { JUNIPER_IFML_PIM, "PIM-Encapsulator" }, + { JUNIPER_IFML_PIMD, "PIM-Decapsulator" }, + { JUNIPER_IFML_CISCOHDLC_CCC, "Cisco-HDLC-CCC" }, + { JUNIPER_IFML_VLAN_CCC, "VLAN-CCC" }, + { JUNIPER_IFML_EXTENDED_VLAN_CCC, "Extended-VLAN-CCC" }, + { JUNIPER_IFML_MLPPP, "Multilink-PPP" }, + { JUNIPER_IFML_MLFR, "Multilink-FR" }, + { JUNIPER_IFML_MFR, "Multilink-FR-UNI-NNI" }, + { JUNIPER_IFML_ML, "Multilink" }, + { JUNIPER_IFML_LS, "LinkService" }, + { JUNIPER_IFML_LSI, "LSI" }, + { JUNIPER_IFML_ATM_CELLRELAY_CCC, "ATM-CCC-Cell-Relay" }, + { JUNIPER_IFML_CRYPTO, "IPSEC-over-IP" }, + { JUNIPER_IFML_GGSN, "GGSN" }, + { JUNIPER_IFML_PPP_TCC, "PPP-TCC" }, + { JUNIPER_IFML_FRAMERELAY_TCC, "Frame-Relay-TCC" }, + { JUNIPER_IFML_FRAMERELAY_EXT_TCC, "Extended FR-TCC" }, + { JUNIPER_IFML_CISCOHDLC_TCC, "Cisco-HDLC-TCC" }, + { JUNIPER_IFML_ETHERNET_CCC, "Ethernet-CCC" }, + { JUNIPER_IFML_VT, "VPN-Loopback-tunnel" }, + { JUNIPER_IFML_ETHER_OVER_ATM, "Ethernet-over-ATM" }, + { JUNIPER_IFML_ETHER_VPLS_OVER_ATM, "Ethernet-VPLS-over-ATM" }, + { JUNIPER_IFML_MONITOR, "Monitor" }, + { JUNIPER_IFML_ETHERNET_TCC, "Ethernet-TCC" }, + { JUNIPER_IFML_VLAN_TCC, "VLAN-TCC" }, + { JUNIPER_IFML_EXTENDED_VLAN_TCC, "Extended-VLAN-TCC" }, + { JUNIPER_IFML_CONTROLLER, "Controller" }, + { JUNIPER_IFML_ETHERNET_VPLS, "VPLS" }, + { JUNIPER_IFML_ETHERNET_VLAN_VPLS, "VLAN-VPLS" }, + { JUNIPER_IFML_ETHERNET_EXTENDED_VLAN_VPLS, "Extended-VLAN-VPLS" }, + { JUNIPER_IFML_LT, "Logical-tunnel" }, + { JUNIPER_IFML_SERVICES, "General-Services" }, + { JUNIPER_IFML_PPPOE, "PPPoE" }, + { JUNIPER_IFML_ETHERNET_FLEX, "Flexible-Ethernet-Services" }, + { JUNIPER_IFML_FRAMERELAY_FLEX, "Flexible-FrameRelay" }, + { JUNIPER_IFML_COLLECTOR, "Flow-collection" }, + { JUNIPER_IFML_PICPEER, "PIC Peer" }, + { JUNIPER_IFML_DFC, "Dynamic-Flow-Capture" }, + {0, NULL} +}; + +#define JUNIPER_IFLE_ATM_SNAP 2 +#define JUNIPER_IFLE_ATM_NLPID 3 +#define JUNIPER_IFLE_ATM_VCMUX 4 +#define JUNIPER_IFLE_ATM_LLC 5 +#define JUNIPER_IFLE_ATM_PPP_VCMUX 6 +#define JUNIPER_IFLE_ATM_PPP_LLC 7 +#define JUNIPER_IFLE_ATM_PPP_FUNI 8 +#define JUNIPER_IFLE_ATM_CCC 9 +#define JUNIPER_IFLE_FR_NLPID 10 +#define JUNIPER_IFLE_FR_SNAP 11 +#define JUNIPER_IFLE_FR_PPP 12 +#define JUNIPER_IFLE_FR_CCC 13 +#define JUNIPER_IFLE_ENET2 14 +#define JUNIPER_IFLE_IEEE8023_SNAP 15 +#define JUNIPER_IFLE_IEEE8023_LLC 16 +#define JUNIPER_IFLE_PPP 17 +#define JUNIPER_IFLE_CISCOHDLC 18 +#define JUNIPER_IFLE_PPP_CCC 19 +#define JUNIPER_IFLE_IPIP_NULL 20 +#define JUNIPER_IFLE_PIM_NULL 21 +#define JUNIPER_IFLE_GRE_NULL 22 +#define JUNIPER_IFLE_GRE_PPP 23 +#define JUNIPER_IFLE_PIMD_DECAPS 24 +#define JUNIPER_IFLE_CISCOHDLC_CCC 25 +#define JUNIPER_IFLE_ATM_CISCO_NLPID 26 +#define JUNIPER_IFLE_VLAN_CCC 27 +#define JUNIPER_IFLE_MLPPP 28 +#define JUNIPER_IFLE_MLFR 29 +#define JUNIPER_IFLE_LSI_NULL 30 +#define JUNIPER_IFLE_AGGREGATE_UNUSED 31 +#define JUNIPER_IFLE_ATM_CELLRELAY_CCC 32 +#define JUNIPER_IFLE_CRYPTO 33 +#define JUNIPER_IFLE_GGSN 34 +#define JUNIPER_IFLE_ATM_TCC 35 +#define JUNIPER_IFLE_FR_TCC 36 +#define JUNIPER_IFLE_PPP_TCC 37 +#define JUNIPER_IFLE_CISCOHDLC_TCC 38 +#define JUNIPER_IFLE_ETHERNET_CCC 39 +#define JUNIPER_IFLE_VT 40 +#define JUNIPER_IFLE_ATM_EOA_LLC 41 +#define JUNIPER_IFLE_EXTENDED_VLAN_CCC 42 +#define JUNIPER_IFLE_ATM_SNAP_TCC 43 +#define JUNIPER_IFLE_MONITOR 44 +#define JUNIPER_IFLE_ETHERNET_TCC 45 +#define JUNIPER_IFLE_VLAN_TCC 46 +#define JUNIPER_IFLE_EXTENDED_VLAN_TCC 47 +#define JUNIPER_IFLE_MFR 48 +#define JUNIPER_IFLE_ETHERNET_VPLS 49 +#define JUNIPER_IFLE_ETHERNET_VLAN_VPLS 50 +#define JUNIPER_IFLE_ETHERNET_EXTENDED_VLAN_VPLS 51 +#define JUNIPER_IFLE_SERVICES 52 +#define JUNIPER_IFLE_ATM_ETHER_VPLS_ATM_LLC 53 +#define JUNIPER_IFLE_FR_PORT_CCC 54 +#define JUNIPER_IFLE_ATM_MLPPP_LLC 55 +#define JUNIPER_IFLE_ATM_EOA_CCC 56 +#define JUNIPER_IFLE_LT_VLAN 57 +#define JUNIPER_IFLE_COLLECTOR 58 +#define JUNIPER_IFLE_AGGREGATOR 59 +#define JUNIPER_IFLE_LAPD 60 +#define JUNIPER_IFLE_ATM_PPPOE_LLC 61 +#define JUNIPER_IFLE_ETHERNET_PPPOE 62 +#define JUNIPER_IFLE_PPPOE 63 +#define JUNIPER_IFLE_PPP_SUBORDINATE 64 +#define JUNIPER_IFLE_CISCOHDLC_SUBORDINATE 65 +#define JUNIPER_IFLE_DFC 66 +#define JUNIPER_IFLE_PICPEER 67 + +struct tok juniper_ifle_values[] = { + { JUNIPER_IFLE_AGGREGATOR, "Aggregator" }, + { JUNIPER_IFLE_ATM_CCC, "CCC over ATM" }, + { JUNIPER_IFLE_ATM_CELLRELAY_CCC, "ATM CCC Cell Relay" }, + { JUNIPER_IFLE_ATM_CISCO_NLPID, "CISCO compatible NLPID" }, + { JUNIPER_IFLE_ATM_EOA_CCC, "Ethernet over ATM CCC" }, + { JUNIPER_IFLE_ATM_EOA_LLC, "Ethernet over ATM LLC" }, + { JUNIPER_IFLE_ATM_ETHER_VPLS_ATM_LLC, "Ethernet VPLS over ATM LLC" }, + { JUNIPER_IFLE_ATM_LLC, "ATM LLC" }, + { JUNIPER_IFLE_ATM_MLPPP_LLC, "MLPPP over ATM LLC" }, + { JUNIPER_IFLE_ATM_NLPID, "ATM NLPID" }, + { JUNIPER_IFLE_ATM_PPPOE_LLC, "PPPoE over ATM LLC" }, + { JUNIPER_IFLE_ATM_PPP_FUNI, "PPP over FUNI" }, + { JUNIPER_IFLE_ATM_PPP_LLC, "PPP over ATM LLC" }, + { JUNIPER_IFLE_ATM_PPP_VCMUX, "PPP over ATM VCMUX" }, + { JUNIPER_IFLE_ATM_SNAP, "ATM SNAP" }, + { JUNIPER_IFLE_ATM_SNAP_TCC, "ATM SNAP TCC" }, + { JUNIPER_IFLE_ATM_TCC, "ATM VCMUX TCC" }, + { JUNIPER_IFLE_ATM_VCMUX, "ATM VCMUX" }, + { JUNIPER_IFLE_CISCOHDLC, "C-HDLC" }, + { JUNIPER_IFLE_CISCOHDLC_CCC, "C-HDLC CCC" }, + { JUNIPER_IFLE_CISCOHDLC_SUBORDINATE, "C-HDLC via dialer" }, + { JUNIPER_IFLE_CISCOHDLC_TCC, "C-HDLC TCC" }, + { JUNIPER_IFLE_COLLECTOR, "Collector" }, + { JUNIPER_IFLE_CRYPTO, "Crypto" }, + { JUNIPER_IFLE_ENET2, "Ethernet" }, + { JUNIPER_IFLE_ETHERNET_CCC, "Ethernet CCC" }, + { JUNIPER_IFLE_ETHERNET_EXTENDED_VLAN_VPLS, "Extended VLAN VPLS" }, + { JUNIPER_IFLE_ETHERNET_PPPOE, "PPPoE over Ethernet" }, + { JUNIPER_IFLE_ETHERNET_TCC, "Ethernet TCC" }, + { JUNIPER_IFLE_ETHERNET_VLAN_VPLS, "VLAN VPLS" }, + { JUNIPER_IFLE_ETHERNET_VPLS, "VPLS" }, + { JUNIPER_IFLE_EXTENDED_VLAN_CCC, "Extended VLAN CCC" }, + { JUNIPER_IFLE_EXTENDED_VLAN_TCC, "Extended VLAN TCC" }, + { JUNIPER_IFLE_FR_CCC, "FR CCC" }, + { JUNIPER_IFLE_FR_NLPID, "FR NLPID" }, + { JUNIPER_IFLE_FR_PORT_CCC, "FR CCC" }, + { JUNIPER_IFLE_FR_PPP, "FR PPP" }, + { JUNIPER_IFLE_FR_SNAP, "FR SNAP" }, + { JUNIPER_IFLE_FR_TCC, "FR TCC" }, + { JUNIPER_IFLE_GGSN, "GGSN" }, + { JUNIPER_IFLE_GRE_NULL, "GRE NULL" }, + { JUNIPER_IFLE_GRE_PPP, "PPP over GRE" }, + { JUNIPER_IFLE_IPIP_NULL, "IPIP" }, + { JUNIPER_IFLE_LAPD, "LAPD" }, + { JUNIPER_IFLE_LSI_NULL, "LSI Null" }, + { JUNIPER_IFLE_LT_VLAN, "LT VLAN" }, + { JUNIPER_IFLE_MFR, "MFR" }, + { JUNIPER_IFLE_MLFR, "MLFR" }, + { JUNIPER_IFLE_MLPPP, "MLPPP" }, + { JUNIPER_IFLE_MONITOR, "Monitor" }, + { JUNIPER_IFLE_PIMD_DECAPS, "PIMd" }, + { JUNIPER_IFLE_PIM_NULL, "PIM Null" }, + { JUNIPER_IFLE_PPP, "PPP" }, + { JUNIPER_IFLE_PPPOE, "PPPoE" }, + { JUNIPER_IFLE_PPP_CCC, "PPP CCC" }, + { JUNIPER_IFLE_PPP_SUBORDINATE, "" }, + { JUNIPER_IFLE_PPP_TCC, "PPP TCC" }, + { JUNIPER_IFLE_SERVICES, "General Services" }, + { JUNIPER_IFLE_VLAN_CCC, "VLAN CCC" }, + { JUNIPER_IFLE_VLAN_TCC, "VLAN TCC" }, + { JUNIPER_IFLE_VT, "VT" }, + {0, NULL} +}; + +struct juniper_cookie_table_t { + u_int32_t pictype; /* pic type */ + u_int8_t cookie_len; /* cookie len */ + const char *s; /* pic name */ +}; + +static struct juniper_cookie_table_t juniper_cookie_table[] = { +#ifdef DLT_JUNIPER_ATM1 + { DLT_JUNIPER_ATM1, 4, "ATM1"}, +#endif +#ifdef DLT_JUNIPER_ATM2 + { DLT_JUNIPER_ATM2, 8, "ATM2"}, +#endif +#ifdef DLT_JUNIPER_MLPPP + { DLT_JUNIPER_MLPPP, 2, "MLPPP"}, +#endif +#ifdef DLT_JUNIPER_MLFR + { DLT_JUNIPER_MLFR, 2, "MLFR"}, +#endif +#ifdef DLT_JUNIPER_MFR + { DLT_JUNIPER_MFR, 4, "MFR"}, +#endif +#ifdef DLT_JUNIPER_PPPOE + { DLT_JUNIPER_PPPOE, 0, "PPPoE"}, +#endif +#ifdef DLT_JUNIPER_PPPOE_ATM + { DLT_JUNIPER_PPPOE_ATM, 0, "PPPoE ATM"}, +#endif +#ifdef DLT_JUNIPER_GGSN + { DLT_JUNIPER_GGSN, 8, "GGSN"}, +#endif +#ifdef DLT_JUNIPER_MONITOR + { DLT_JUNIPER_MONITOR, 8, "MONITOR"}, +#endif +#ifdef DLT_JUNIPER_SERVICES + { DLT_JUNIPER_SERVICES, 8, "AS"}, +#endif +#ifdef DLT_JUNIPER_ES + { DLT_JUNIPER_ES, 0, "ES"}, +#endif + { 0, 0, NULL } +}; + +struct juniper_l2info_t { + u_int32_t length; + u_int32_t caplen; + u_int32_t pictype; + u_int8_t direction; + u_int8_t header_len; + u_int8_t cookie_len; + u_int8_t cookie_type; + u_int8_t cookie[8]; + u_int8_t bundle; + u_int16_t proto; + u_int8_t flags; +}; + +#define LS_COOKIE_ID 0x54 +#define AS_COOKIE_ID 0x47 +#define LS_MLFR_COOKIE_LEN 4 +#define ML_MLFR_COOKIE_LEN 2 +#define LS_MFR_COOKIE_LEN 6 +#define ATM1_COOKIE_LEN 4 +#define ATM2_COOKIE_LEN 8 + +#define ATM2_PKT_TYPE_MASK 0x70 +#define ATM2_GAP_COUNT_MASK 0x3F + +#define JUNIPER_PROTO_NULL 1 +#define JUNIPER_PROTO_IPV4 2 +#define JUNIPER_PROTO_IPV6 6 + +#define MFR_BE_MASK 0xc0 + +static struct tok juniper_protocol_values[] = { + { JUNIPER_PROTO_NULL, "Null" }, + { JUNIPER_PROTO_IPV4, "IPv4" }, + { JUNIPER_PROTO_IPV6, "IPv6" }, + { 0, NULL} +}; + +int ip_heuristic_guess(register const u_char *, u_int); +int juniper_ppp_heuristic_guess(register const u_char *, u_int); +int juniper_read_tlv_value(const u_char *, u_int, u_int); +static int juniper_parse_header (const u_char *, const struct pcap_pkthdr *, struct juniper_l2info_t *); + +#ifdef DLT_JUNIPER_GGSN +u_int +juniper_ggsn_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_ggsn_header { + u_int8_t svc_id; + u_int8_t flags_len; + u_int8_t proto; + u_int8_t flags; + u_int8_t vlan_id[2]; + u_int8_t res[2]; + }; + const struct juniper_ggsn_header *gh; + + l2info.pictype = DLT_JUNIPER_GGSN; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + gh = (struct juniper_ggsn_header *)&l2info.cookie; + + if (eflag) { + printf("proto %s (%u), vlan %u: ", + tok2str(juniper_protocol_values,"Unknown",gh->proto), + gh->proto, + EXTRACT_16BITS(&gh->vlan_id[0])); + } + + switch (gh->proto) { + case JUNIPER_PROTO_IPV4: + ip_print(gndo, p, l2info.length); + break; +#ifdef INET6 + case JUNIPER_PROTO_IPV6: + ip6_print(p, l2info.length); + break; +#endif /* INET6 */ + default: + if (!eflag) + printf("unknown GGSN proto (%u)", gh->proto); + } + + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_ES +u_int +juniper_es_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_ipsec_header { + u_int8_t sa_index[2]; + u_int8_t ttl; + u_int8_t type; + u_int8_t spi[4]; + u_int8_t src_ip[4]; + u_int8_t dst_ip[4]; + }; + u_int rewrite_len,es_type_bundle; + const struct juniper_ipsec_header *ih; + + l2info.pictype = DLT_JUNIPER_ES; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + ih = (struct juniper_ipsec_header *)p; + + switch (ih->type) { + case JUNIPER_IPSEC_O_ESP_ENCRYPT_ESP_AUTHEN_TYPE: + case JUNIPER_IPSEC_O_ESP_ENCRYPT_AH_AUTHEN_TYPE: + rewrite_len = 0; + es_type_bundle = 1; + break; + case JUNIPER_IPSEC_O_ESP_AUTHENTICATION_TYPE: + case JUNIPER_IPSEC_O_AH_AUTHENTICATION_TYPE: + case JUNIPER_IPSEC_O_ESP_ENCRYPTION_TYPE: + rewrite_len = 16; + es_type_bundle = 0; + default: + printf("ES Invalid type %u, length %u", + ih->type, + l2info.length); + return l2info.header_len; + } + + l2info.length-=rewrite_len; + p+=rewrite_len; + + if (eflag) { + if (!es_type_bundle) { + printf("ES SA, index %u, ttl %u type %s (%u), spi %u, Tunnel %s > %s, length %u\n", + EXTRACT_16BITS(&ih->sa_index), + ih->ttl, + tok2str(juniper_ipsec_type_values,"Unknown",ih->type), + ih->type, + EXTRACT_32BITS(&ih->spi), + ipaddr_string(&ih->src_ip), + ipaddr_string(&ih->dst_ip), + l2info.length); + } else { + printf("ES SA, index %u, ttl %u type %s (%u), length %u\n", + EXTRACT_16BITS(&ih->sa_index), + ih->ttl, + tok2str(juniper_ipsec_type_values,"Unknown",ih->type), + ih->type, + l2info.length); + } + } + + ip_print(gndo, p, l2info.length); + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_MONITOR +u_int +juniper_monitor_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_monitor_header { + u_int8_t pkt_type; + u_int8_t padding; + u_int8_t iif[2]; + u_int8_t service_id[4]; + }; + const struct juniper_monitor_header *mh; + + l2info.pictype = DLT_JUNIPER_MONITOR; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + mh = (struct juniper_monitor_header *)p; + + if (eflag) + printf("service-id %u, iif %u, pkt-type %u: ", + EXTRACT_32BITS(&mh->service_id), + EXTRACT_16BITS(&mh->iif), + mh->pkt_type); + + /* no proto field - lets guess by first byte of IP header*/ + ip_heuristic_guess(p, l2info.length); + + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_SERVICES +u_int +juniper_services_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_services_header { + u_int8_t svc_id; + u_int8_t flags_len; + u_int8_t svc_set_id[2]; + u_int8_t dir_iif[4]; + }; + const struct juniper_services_header *sh; + + l2info.pictype = DLT_JUNIPER_SERVICES; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + sh = (struct juniper_services_header *)p; + + if (eflag) + printf("service-id %u flags 0x%02x service-set-id 0x%04x iif %u: ", + sh->svc_id, + sh->flags_len, + EXTRACT_16BITS(&sh->svc_set_id), + EXTRACT_24BITS(&sh->dir_iif[1])); + + /* no proto field - lets guess by first byte of IP header*/ + ip_heuristic_guess(p, l2info.length); + + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_PPPOE +u_int +juniper_pppoe_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_PPPOE; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + /* this DLT contains nothing but raw ethernet frames */ + ether_print(p, l2info.length, l2info.caplen); + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_ETHER +u_int +juniper_ether_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_ETHER; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + /* this DLT contains nothing but raw Ethernet frames */ + ether_print(p, l2info.length, l2info.caplen); + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_PPP +u_int +juniper_ppp_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_PPP; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + /* this DLT contains nothing but raw ppp frames */ + ppp_print(p, l2info.length); + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_FRELAY +u_int +juniper_frelay_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_FRELAY; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + /* this DLT contains nothing but raw frame-relay frames */ + fr_print(p, l2info.length); + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_CHDLC +u_int +juniper_chdlc_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_CHDLC; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + /* this DLT contains nothing but raw c-hdlc frames */ + chdlc_print(p, l2info.length); + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_PPPOE_ATM +u_int +juniper_pppoe_atm_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + u_int16_t extracted_ethertype; + + l2info.pictype = DLT_JUNIPER_PPPOE_ATM; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + + extracted_ethertype = EXTRACT_16BITS(p); + /* this DLT contains nothing but raw PPPoE frames, + * prepended with a type field*/ + if (ether_encap_print(extracted_ethertype, + p+ETHERTYPE_LEN, + l2info.length-ETHERTYPE_LEN, + l2info.caplen-ETHERTYPE_LEN, + &extracted_ethertype) == 0) + /* ether_type not known, probably it wasn't one */ + printf("unknown ethertype 0x%04x", extracted_ethertype); + + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_MLPPP +u_int +juniper_mlppp_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_MLPPP; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + /* suppress Bundle-ID if frame was captured on a child-link + * best indicator if the cookie looks like a proto */ + if (eflag && + EXTRACT_16BITS(&l2info.cookie) != PPP_OSI && + EXTRACT_16BITS(&l2info.cookie) != (PPP_ADDRESS << 8 | PPP_CONTROL)) + printf("Bundle-ID %u: ",l2info.bundle); + + p+=l2info.header_len; + + /* first try the LSQ protos */ + switch(l2info.proto) { + case JUNIPER_LSQ_L3_PROTO_IPV4: + /* IP traffic going to the RE would not have a cookie + * -> this must be incoming IS-IS over PPP + */ + if (l2info.cookie[4] == (JUNIPER_LSQ_COOKIE_RE|JUNIPER_LSQ_COOKIE_DIR)) + ppp_print(p, l2info.length); + else + ip_print(gndo, p, l2info.length); + return l2info.header_len; +#ifdef INET6 + case JUNIPER_LSQ_L3_PROTO_IPV6: + ip6_print(p,l2info.length); + return l2info.header_len; +#endif + case JUNIPER_LSQ_L3_PROTO_MPLS: + mpls_print(p,l2info.length); + return l2info.header_len; + case JUNIPER_LSQ_L3_PROTO_ISO: + isoclns_print(p,l2info.length,l2info.caplen); + return l2info.header_len; + default: + break; + } + + /* zero length cookie ? */ + switch (EXTRACT_16BITS(&l2info.cookie)) { + case PPP_OSI: + ppp_print(p-2,l2info.length+2); + break; + case (PPP_ADDRESS << 8 | PPP_CONTROL): /* fall through */ + default: + ppp_print(p,l2info.length); + break; + } + + return l2info.header_len; +} +#endif + + +#ifdef DLT_JUNIPER_MFR +u_int +juniper_mfr_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_MFR; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + + /* child-link ? */ + if (l2info.cookie_len == 0) { + mfr_print(p,l2info.length); + return l2info.header_len; + } + + /* first try the LSQ protos */ + if (l2info.cookie_len == AS_PIC_COOKIE_LEN) { + switch(l2info.proto) { + case JUNIPER_LSQ_L3_PROTO_IPV4: + ip_print(gndo, p, l2info.length); + return l2info.header_len; +#ifdef INET6 + case JUNIPER_LSQ_L3_PROTO_IPV6: + ip6_print(p,l2info.length); + return l2info.header_len; +#endif + case JUNIPER_LSQ_L3_PROTO_MPLS: + mpls_print(p,l2info.length); + return l2info.header_len; + case JUNIPER_LSQ_L3_PROTO_ISO: + isoclns_print(p,l2info.length,l2info.caplen); + return l2info.header_len; + default: + break; + } + return l2info.header_len; + } + + /* suppress Bundle-ID if frame was captured on a child-link */ + if (eflag && EXTRACT_32BITS(l2info.cookie) != 1) printf("Bundle-ID %u, ",l2info.bundle); + switch (l2info.proto) { + case (LLCSAP_ISONS<<8 | LLCSAP_ISONS): + isoclns_print(p+1, l2info.length-1, l2info.caplen-1); + break; + case (LLC_UI<<8 | NLPID_Q933): + case (LLC_UI<<8 | NLPID_IP): + case (LLC_UI<<8 | NLPID_IP6): + /* pass IP{4,6} to the OSI layer for proper link-layer printing */ + isoclns_print(p-1, l2info.length+1, l2info.caplen+1); + break; + default: + printf("unknown protocol 0x%04x, length %u",l2info.proto, l2info.length); + } + + return l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_MLFR +u_int +juniper_mlfr_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_MLFR; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + + /* suppress Bundle-ID if frame was captured on a child-link */ + if (eflag && EXTRACT_32BITS(l2info.cookie) != 1) printf("Bundle-ID %u, ",l2info.bundle); + switch (l2info.proto) { + case (LLC_UI): + case (LLC_UI<<8): + isoclns_print(p, l2info.length, l2info.caplen); + break; + case (LLC_UI<<8 | NLPID_Q933): + case (LLC_UI<<8 | NLPID_IP): + case (LLC_UI<<8 | NLPID_IP6): + /* pass IP{4,6} to the OSI layer for proper link-layer printing */ + isoclns_print(p-1, l2info.length+1, l2info.caplen+1); + break; + default: + printf("unknown protocol 0x%04x, length %u",l2info.proto, l2info.length); + } + + return l2info.header_len; +} +#endif + +/* + * ATM1 PIC cookie format + * + * +-----+-------------------------+-------------------------------+ + * |fmtid| vc index | channel ID | + * +-----+-------------------------+-------------------------------+ + */ + +#ifdef DLT_JUNIPER_ATM1 +u_int +juniper_atm1_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + u_int16_t extracted_ethertype; + + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_ATM1; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + + if (l2info.cookie[0] == 0x80) { /* OAM cell ? */ + oam_print(p,l2info.length,ATM_OAM_NOHEC); + return l2info.header_len; + } + + if (EXTRACT_24BITS(p) == 0xfefe03 || /* NLPID encaps ? */ + EXTRACT_24BITS(p) == 0xaaaa03) { /* SNAP encaps ? */ + + if (llc_print(p, l2info.length, l2info.caplen, NULL, NULL, + &extracted_ethertype) != 0) + return l2info.header_len; + } + + if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */ + isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1); + /* FIXME check if frame was recognized */ + return l2info.header_len; + } + + if(ip_heuristic_guess(p, l2info.length) != 0) /* last try - vcmux encaps ? */ + return l2info.header_len; + + return l2info.header_len; +} +#endif + +/* + * ATM2 PIC cookie format + * + * +-------------------------------+---------+---+-----+-----------+ + * | channel ID | reserv |AAL| CCRQ| gap cnt | + * +-------------------------------+---------+---+-----+-----------+ + */ + +#ifdef DLT_JUNIPER_ATM2 +u_int +juniper_atm2_print(const struct pcap_pkthdr *h, register const u_char *p) +{ + u_int16_t extracted_ethertype; + + struct juniper_l2info_t l2info; + + l2info.pictype = DLT_JUNIPER_ATM2; + if(juniper_parse_header(p, h, &l2info) == 0) + return l2info.header_len; + + p+=l2info.header_len; + + if (l2info.cookie[7] & ATM2_PKT_TYPE_MASK) { /* OAM cell ? */ + oam_print(p,l2info.length,ATM_OAM_NOHEC); + return l2info.header_len; + } + + if (EXTRACT_24BITS(p) == 0xfefe03 || /* NLPID encaps ? */ + EXTRACT_24BITS(p) == 0xaaaa03) { /* SNAP encaps ? */ + + if (llc_print(p, l2info.length, l2info.caplen, NULL, NULL, + &extracted_ethertype) != 0) + return l2info.header_len; + } + + if (l2info.direction != JUNIPER_BPF_PKT_IN && /* ether-over-1483 encaps ? */ + (EXTRACT_32BITS(l2info.cookie) & ATM2_GAP_COUNT_MASK)) { + ether_print(p, l2info.length, l2info.caplen); + return l2info.header_len; + } + + if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */ + isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1); + /* FIXME check if frame was recognized */ + return l2info.header_len; + } + + if(juniper_ppp_heuristic_guess(p, l2info.length) != 0) /* PPPoA vcmux encaps ? */ + return l2info.header_len; + + if(ip_heuristic_guess(p, l2info.length) != 0) /* last try - vcmux encaps ? */ + return l2info.header_len; + + return l2info.header_len; +} +#endif + + +/* try to guess, based on all PPP protos that are supported in + * a juniper router if the payload data is encapsulated using PPP */ +int +juniper_ppp_heuristic_guess(register const u_char *p, u_int length) { + + switch(EXTRACT_16BITS(p)) { + case PPP_IP : + case PPP_OSI : + case PPP_MPLS_UCAST : + case PPP_MPLS_MCAST : + case PPP_IPCP : + case PPP_OSICP : + case PPP_MPLSCP : + case PPP_LCP : + case PPP_PAP : + case PPP_CHAP : + case PPP_ML : +#ifdef INET6 + case PPP_IPV6 : + case PPP_IPV6CP : +#endif + ppp_print(p, length); + break; + + default: + return 0; /* did not find a ppp header */ + break; + } + return 1; /* we printed a ppp packet */ +} + +int +ip_heuristic_guess(register const u_char *p, u_int length) { + + switch(p[0]) { + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4a: + case 0x4b: + case 0x4c: + case 0x4d: + case 0x4e: + case 0x4f: + ip_print(gndo, p, length); + break; +#ifdef INET6 + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6a: + case 0x6b: + case 0x6c: + case 0x6d: + case 0x6e: + case 0x6f: + ip6_print(p, length); + break; +#endif + default: + return 0; /* did not find a ip header */ + break; + } + return 1; /* we printed an v4/v6 packet */ +} + +int +juniper_read_tlv_value(const u_char *p, u_int tlv_type, u_int tlv_len) { + + int tlv_value; + + /* TLVs < 128 are little endian encoded */ + if (tlv_type < 128) { + switch (tlv_len) { + case 1: + tlv_value = *p; + break; + case 2: + tlv_value = EXTRACT_LE_16BITS(p); + break; + case 3: + tlv_value = EXTRACT_LE_24BITS(p); + break; + case 4: + tlv_value = EXTRACT_LE_32BITS(p); + break; + default: + tlv_value = -1; + break; + } + } else { + /* TLVs >= 128 are big endian encoded */ + switch (tlv_len) { + case 1: + tlv_value = *p; + break; + case 2: + tlv_value = EXTRACT_16BITS(p); + break; + case 3: + tlv_value = EXTRACT_24BITS(p); + break; + case 4: + tlv_value = EXTRACT_32BITS(p); + break; + default: + tlv_value = -1; + break; + } + } + return tlv_value; +} + +static int +juniper_parse_header (const u_char *p, const struct pcap_pkthdr *h, struct juniper_l2info_t *l2info) { + + struct juniper_cookie_table_t *lp = juniper_cookie_table; + u_int idx, jnx_ext_len, jnx_header_len = 0; + u_int8_t tlv_type,tlv_len; + u_int32_t control_word; + int tlv_value; + const u_char *tptr; + + + l2info->header_len = 0; + l2info->cookie_len = 0; + l2info->proto = 0; + + + l2info->length = h->len; + l2info->caplen = h->caplen; + TCHECK2(p[0],4); + l2info->flags = p[3]; + l2info->direction = p[3]&JUNIPER_BPF_PKT_IN; + + if (EXTRACT_24BITS(p) != JUNIPER_MGC_NUMBER) { /* magic number found ? */ + printf("no magic-number found!"); + return 0; + } + + if (eflag) /* print direction */ + printf("%3s ",tok2str(juniper_direction_values,"---",l2info->direction)); + + /* magic number + flags */ + jnx_header_len = 4; + + if (vflag>1) + printf("\n\tJuniper PCAP Flags [%s]", + bittok2str(jnx_flag_values, "none", l2info->flags)); + + /* extensions present ? - calculate how much bytes to skip */ + if ((l2info->flags & JUNIPER_BPF_EXT ) == JUNIPER_BPF_EXT ) { + + tptr = p+jnx_header_len; + + /* ok to read extension length ? */ + TCHECK2(tptr[0], 2); + jnx_ext_len = EXTRACT_16BITS(tptr); + jnx_header_len += 2; + tptr +=2; + + /* nail up the total length - + * just in case something goes wrong + * with TLV parsing */ + jnx_header_len += jnx_ext_len; + + if (vflag>1) + printf(", PCAP Extension(s) total length %u", + jnx_ext_len); + + TCHECK2(tptr[0], jnx_ext_len); + while (jnx_ext_len > JUNIPER_EXT_TLV_OVERHEAD) { + tlv_type = *(tptr++); + tlv_len = *(tptr++); + tlv_value = 0; + + /* sanity check */ + if (tlv_type == 0 || tlv_len == 0) + break; + + if (vflag>1) + printf("\n\t %s Extension TLV #%u, length %u, value ", + tok2str(jnx_ext_tlv_values,"Unknown",tlv_type), + tlv_type, + tlv_len); + + tlv_value = juniper_read_tlv_value(tptr, tlv_type, tlv_len); + switch (tlv_type) { + case JUNIPER_EXT_TLV_IFD_NAME: + /* FIXME */ + break; + case JUNIPER_EXT_TLV_IFD_MEDIATYPE: + case JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE: + if (tlv_value != -1) { + if (vflag>1) + printf("%s (%u)", + tok2str(juniper_ifmt_values, "Unknown", tlv_value), + tlv_value); + } + break; + case JUNIPER_EXT_TLV_IFL_ENCAPS: + case JUNIPER_EXT_TLV_TTP_IFL_ENCAPS: + if (tlv_value != -1) { + if (vflag>1) + printf("%s (%u)", + tok2str(juniper_ifle_values, "Unknown", tlv_value), + tlv_value); + } + break; + case JUNIPER_EXT_TLV_IFL_IDX: /* fall through */ + case JUNIPER_EXT_TLV_IFL_UNIT: + case JUNIPER_EXT_TLV_IFD_IDX: + default: + if (tlv_value != -1) { + if (vflag>1) + printf("%u",tlv_value); + } + break; + } + + tptr+=tlv_len; + jnx_ext_len -= tlv_len+JUNIPER_EXT_TLV_OVERHEAD; + } + + if (vflag>1) + printf("\n\t-----original packet-----\n\t"); + } + + if ((l2info->flags & JUNIPER_BPF_NO_L2 ) == JUNIPER_BPF_NO_L2 ) { + if (eflag) + printf("no-L2-hdr, "); + + /* there is no link-layer present - + * perform the v4/v6 heuristics + * to figure out what it is + */ + TCHECK2(p[jnx_header_len+4],1); + if(ip_heuristic_guess(p+jnx_header_len+4,l2info->length-(jnx_header_len+4)) == 0) + printf("no IP-hdr found!"); + + l2info->header_len=jnx_header_len+4; + return 0; /* stop parsing the output further */ + + } + l2info->header_len = jnx_header_len; + p+=l2info->header_len; + l2info->length -= l2info->header_len; + l2info->caplen -= l2info->header_len; + + /* search through the cookie table and copy values matching for our PIC type */ + while (lp->s != NULL) { + if (lp->pictype == l2info->pictype) { + + l2info->cookie_len += lp->cookie_len; + + switch (p[0]) { + case LS_COOKIE_ID: + l2info->cookie_type = LS_COOKIE_ID; + l2info->cookie_len += 2; + break; + case AS_COOKIE_ID: + l2info->cookie_type = AS_COOKIE_ID; + l2info->cookie_len = 8; + break; + + default: + l2info->bundle = l2info->cookie[0]; + break; + } + + +#ifdef DLT_JUNIPER_MFR + /* MFR child links don't carry cookies */ + if (l2info->pictype == DLT_JUNIPER_MFR && + (p[0] & MFR_BE_MASK) == MFR_BE_MASK) { + l2info->cookie_len = 0; + } +#endif + + l2info->header_len += l2info->cookie_len; + l2info->length -= l2info->cookie_len; + l2info->caplen -= l2info->cookie_len; + + if (eflag) + printf("%s-PIC, cookie-len %u", + lp->s, + l2info->cookie_len); + + if (l2info->cookie_len > 0) { + TCHECK2(p[0],l2info->cookie_len); + if (eflag) + printf(", cookie 0x"); + for (idx = 0; idx < l2info->cookie_len; idx++) { + l2info->cookie[idx] = p[idx]; /* copy cookie data */ + if (eflag) printf("%02x",p[idx]); + } + } + + if (eflag) printf(": "); /* print demarc b/w L2/L3*/ + + + l2info->proto = EXTRACT_16BITS(p+l2info->cookie_len); + break; + } + ++lp; + } + p+=l2info->cookie_len; + + /* DLT_ specific parsing */ + switch(l2info->pictype) { +#ifdef DLT_JUNIPER_MLPPP + case DLT_JUNIPER_MLPPP: + switch (l2info->cookie_type) { + case LS_COOKIE_ID: + l2info->bundle = l2info->cookie[1]; + break; + case AS_COOKIE_ID: + l2info->bundle = (EXTRACT_16BITS(&l2info->cookie[6])>>3)&0xfff; + l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK; + break; + default: + l2info->bundle = l2info->cookie[0]; + break; + } + break; +#endif +#ifdef DLT_JUNIPER_MLFR + case DLT_JUNIPER_MLFR: + switch (l2info->cookie_type) { + case LS_COOKIE_ID: + l2info->bundle = l2info->cookie[1]; + l2info->proto = EXTRACT_16BITS(p); + l2info->header_len += 2; + l2info->length -= 2; + l2info->caplen -= 2; + break; + case AS_COOKIE_ID: + l2info->bundle = (EXTRACT_16BITS(&l2info->cookie[6])>>3)&0xfff; + l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK; + break; + default: + l2info->bundle = l2info->cookie[0]; + l2info->header_len += 2; + l2info->length -= 2; + l2info->caplen -= 2; + break; + } + break; +#endif +#ifdef DLT_JUNIPER_MFR + case DLT_JUNIPER_MFR: + switch (l2info->cookie_type) { + case LS_COOKIE_ID: + l2info->bundle = l2info->cookie[1]; + l2info->proto = EXTRACT_16BITS(p); + l2info->header_len += 2; + l2info->length -= 2; + l2info->caplen -= 2; + break; + case AS_COOKIE_ID: + l2info->bundle = (EXTRACT_16BITS(&l2info->cookie[6])>>3)&0xfff; + l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK; + break; + default: + l2info->bundle = l2info->cookie[0]; + break; + } + break; +#endif +#ifdef DLT_JUNIPER_ATM2 + case DLT_JUNIPER_ATM2: + TCHECK2(p[0],4); + /* ATM cell relay control word present ? */ + if (l2info->cookie[7] & ATM2_PKT_TYPE_MASK) { + control_word = EXTRACT_32BITS(p); + /* some control word heuristics */ + switch(control_word) { + case 0: /* zero control word */ + case 0x08000000: /* < JUNOS 7.4 control-word */ + case 0x08380000: /* cntl word plus cell length (56) >= JUNOS 7.4*/ + l2info->header_len += 4; + break; + default: + break; + } + + if (eflag) + printf("control-word 0x%08x ", control_word); + } + break; +#endif +#ifdef DLT_JUNIPER_GGSN + case DLT_JUNIPER_GGSN: + break; +#endif +#ifdef DLT_JUNIPER_ATM1 + case DLT_JUNIPER_ATM1: + break; +#endif +#ifdef DLT_JUNIPER_PPP + case DLT_JUNIPER_PPP: + break; +#endif +#ifdef DLT_JUNIPER_CHDLC + case DLT_JUNIPER_CHDLC: + break; +#endif +#ifdef DLT_JUNIPER_ETHER + case DLT_JUNIPER_ETHER: + break; +#endif +#ifdef DLT_JUNIPER_FRELAY + case DLT_JUNIPER_FRELAY: + break; +#endif + + default: + printf("Unknown Juniper DLT_ type %u: ", l2info->pictype); + break; + } + + if (eflag > 1) + printf("hlen %u, proto 0x%04x, ",l2info->header_len,l2info->proto); + + return 1; /* everything went ok so far. continue parsing */ + trunc: + printf("[|juniper_hdr], length %u",h->len); + return 0; +} + + +/* + * Local Variables: + * c-style: whitesmith + * c-basic-offset: 4 + * End: + */ |
