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| -rw-r--r-- | print-juniper.c | 1626 |
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diff --git a/print-juniper.c b/print-juniper.c new file mode 100644 index 0000000..2fc0b55 --- /dev/null +++ b/print-juniper.c @@ -0,0 +1,1626 @@ +/* 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@gredler.at) + */ + +/* \summary: DLT_JUNIPER_* printers */ + +#ifndef lint +#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 "netdissect-stdinc.h" + +#include <string.h> + +#define ND_LONGJMP_FROM_TCHECK +#include "netdissect.h" +#include "addrtoname.h" +#include "extract.h" +#include "ppp.h" +#include "llc.h" +#include "nlpid.h" +#include "ethertype.h" +#include "atm.h" + +/* + * If none of the Juniper DLT_s are defined, there's nothing to do. + */ +#if defined(DLT_JUNIPER_GGSN) || defined(DLT_JUNIPER_ES) || \ + defined(DLT_JUNIPER_MONITOR) || defined(DLT_JUNIPER_SERVICES) || \ + defined(DLT_JUNIPER_PPPOE) || defined(DLT_JUNIPER_ETHER) || \ + defined(DLT_JUNIPER_PPP) || defined(DLT_JUNIPER_FRELAY) || \ + defined(DLT_JUNIPER_CHDLC) || defined(DLT_JUNIPER_PPPOE_ATM) || \ + defined(DLT_JUNIPER_MLPPP) || defined(DLT_JUNIPER_MFR) || \ + defined(DLT_JUNIPER_MLFR) || defined(DLT_JUNIPER_ATM1) || \ + defined(DLT_JUNIPER_ATM2) +#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 + +#ifdef DLT_JUNIPER_ES +static const 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} +}; +#endif + +static const 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 2U + +static const 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 } +}; + +static const 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 + +static const 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 + +static const 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 { + uint32_t pictype; /* pic type */ + uint8_t cookie_len; /* cookie len */ + const char *s; /* pic name */ +}; + +static const 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 { + uint32_t length; + uint32_t caplen; + uint32_t pictype; + uint8_t direction; + u_int header_len; + uint8_t cookie_len; + uint8_t cookie_type; + uint8_t cookie[8]; + u_int bundle; + uint16_t proto; + uint8_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 + +#ifdef DLT_JUNIPER_GGSN +static const struct tok juniper_protocol_values[] = { + { JUNIPER_PROTO_NULL, "Null" }, + { JUNIPER_PROTO_IPV4, "IPv4" }, + { JUNIPER_PROTO_IPV6, "IPv6" }, + { 0, NULL} +}; +#endif + +static int ip_heuristic_guess(netdissect_options *, const u_char *, u_int); +#ifdef DLT_JUNIPER_ATM2 +static int juniper_ppp_heuristic_guess(netdissect_options *, const u_char *, u_int); +#endif +static int juniper_parse_header(netdissect_options *, const u_char *, const struct pcap_pkthdr *, struct juniper_l2info_t *); + +#ifdef DLT_JUNIPER_GGSN +void +juniper_ggsn_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_ggsn_header { + nd_uint8_t svc_id; + nd_uint8_t flags_len; + nd_uint8_t proto; + nd_uint8_t flags; + nd_uint16_t vlan_id; + nd_byte res[2]; + }; + const struct juniper_ggsn_header *gh; + uint8_t proto; + + ndo->ndo_protocol = "juniper_ggsn"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_GGSN; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + gh = (struct juniper_ggsn_header *)&l2info.cookie; + + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + proto = EXTRACT_U_1(gh->proto); + if (ndo->ndo_eflag) { + ND_PRINT("proto %s (%u), vlan %u: ", + tok2str(juniper_protocol_values,"Unknown",proto), + proto, + EXTRACT_BE_U_2(gh->vlan_id)); + } + + switch (proto) { + case JUNIPER_PROTO_IPV4: + ip_print(ndo, p, l2info.length); + break; + case JUNIPER_PROTO_IPV6: + ip6_print(ndo, p, l2info.length); + break; + default: + if (!ndo->ndo_eflag) + ND_PRINT("unknown GGSN proto (%u)", proto); + } + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_ES +void +juniper_es_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_ipsec_header { + nd_uint16_t sa_index; + nd_uint8_t ttl; + nd_uint8_t type; + nd_uint32_t spi; + nd_ipv4 src_ip; + nd_ipv4 dst_ip; + }; + u_int rewrite_len,es_type_bundle; + const struct juniper_ipsec_header *ih; + + ndo->ndo_protocol = "juniper_es"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_ES; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + ih = (const struct juniper_ipsec_header *)p; + + ND_TCHECK_SIZE(ih); + switch (GET_U_1(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; + break; + default: + ND_PRINT("ES Invalid type %u, length %u", + GET_U_1(ih->type), + l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + l2info.length-=rewrite_len; + p+=rewrite_len; + + if (ndo->ndo_eflag) { + if (!es_type_bundle) { + ND_PRINT("ES SA, index %u, ttl %u type %s (%u), spi %u, Tunnel %s > %s, length %u\n", + GET_BE_U_2(ih->sa_index), + GET_U_1(ih->ttl), + tok2str(juniper_ipsec_type_values,"Unknown",GET_U_1(ih->type)), + GET_U_1(ih->type), + GET_BE_U_4(ih->spi), + GET_IPADDR_STRING(ih->src_ip), + GET_IPADDR_STRING(ih->dst_ip), + l2info.length); + } else { + ND_PRINT("ES SA, index %u, ttl %u type %s (%u), length %u\n", + GET_BE_U_2(ih->sa_index), + GET_U_1(ih->ttl), + tok2str(juniper_ipsec_type_values,"Unknown",GET_U_1(ih->type)), + GET_U_1(ih->type), + l2info.length); + } + } + + ip_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_MONITOR +void +juniper_monitor_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_monitor_header { + nd_uint8_t pkt_type; + nd_byte padding; + nd_uint16_t iif; + nd_uint32_t service_id; + }; + const struct juniper_monitor_header *mh; + + ndo->ndo_protocol = "juniper_monitor"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_MONITOR; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + mh = (const struct juniper_monitor_header *)p; + + ND_TCHECK_SIZE(mh); + if (ndo->ndo_eflag) + ND_PRINT("service-id %u, iif %u, pkt-type %u: ", + GET_BE_U_4(mh->service_id), + GET_BE_U_2(mh->iif), + GET_U_1(mh->pkt_type)); + + /* no proto field - lets guess by first byte of IP header*/ + ip_heuristic_guess (ndo, p, l2info.length); + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_SERVICES +void +juniper_services_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + struct juniper_services_header { + nd_uint8_t svc_id; + nd_uint8_t flags_len; + nd_uint16_t svc_set_id; + nd_byte pad; + nd_uint24_t dir_iif; + }; + const struct juniper_services_header *sh; + + ndo->ndo_protocol = "juniper_services"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_SERVICES; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + sh = (const struct juniper_services_header *)p; + + ND_TCHECK_SIZE(sh); + if (ndo->ndo_eflag) + ND_PRINT("service-id %u flags 0x%02x service-set-id 0x%04x iif %u: ", + GET_U_1(sh->svc_id), + GET_U_1(sh->flags_len), + GET_BE_U_2(sh->svc_set_id), + GET_BE_U_3(sh->dir_iif)); + + /* no proto field - lets guess by first byte of IP header*/ + ip_heuristic_guess (ndo, p, l2info.length); + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_PPPOE +void +juniper_pppoe_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_pppoe"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_PPPOE; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + /* this DLT contains nothing but raw ethernet frames */ + ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL); + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_ETHER +void +juniper_ether_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_ether"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_ETHER; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + /* this DLT contains nothing but raw Ethernet frames */ + ndo->ndo_ll_hdr_len += + l2info.header_len + + ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL); +} +#endif + +#ifdef DLT_JUNIPER_PPP +void +juniper_ppp_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_ppp"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_PPP; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + /* this DLT contains nothing but raw ppp frames */ + ppp_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_FRELAY +void +juniper_frelay_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_frelay"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_FRELAY; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + /* this DLT contains nothing but raw frame-relay frames */ + fr_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_CHDLC +void +juniper_chdlc_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_chdlc"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_CHDLC; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + /* this DLT contains nothing but raw c-hdlc frames */ + chdlc_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_PPPOE_ATM +void +juniper_pppoe_atm_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + uint16_t extracted_ethertype; + + ndo->ndo_protocol = "juniper_pppoe_atm"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_PPPOE_ATM; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + + extracted_ethertype = GET_BE_U_2(p); + /* this DLT contains nothing but raw PPPoE frames, + * prepended with a type field*/ + if (ethertype_print(ndo, extracted_ethertype, + p+ETHERTYPE_LEN, + l2info.length-ETHERTYPE_LEN, + l2info.caplen-ETHERTYPE_LEN, + NULL, NULL) == 0) + /* ether_type not known, probably it wasn't one */ + ND_PRINT("unknown ethertype 0x%04x", extracted_ethertype); + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_MLPPP +void +juniper_mlppp_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_mlppp"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_MLPPP; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + /* suppress Bundle-ID if frame was captured on a child-link + * best indicator if the cookie looks like a proto */ + if (ndo->ndo_eflag && + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + EXTRACT_BE_U_2(&l2info.cookie) != PPP_OSI && + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + EXTRACT_BE_U_2(&l2info.cookie) != (PPP_ADDRESS << 8 | PPP_CONTROL)) + ND_PRINT("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(ndo, p, l2info.length); + else + ip_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + case JUNIPER_LSQ_L3_PROTO_IPV6: + ip6_print(ndo, p,l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + case JUNIPER_LSQ_L3_PROTO_MPLS: + mpls_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + case JUNIPER_LSQ_L3_PROTO_ISO: + isoclns_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + default: + break; + } + + /* zero length cookie ? */ + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + switch (EXTRACT_BE_U_2(&l2info.cookie)) { + case PPP_OSI: + ppp_print(ndo, p - 2, l2info.length + 2); + break; + case (PPP_ADDRESS << 8 | PPP_CONTROL): /* fall through */ + default: + ppp_print(ndo, p, l2info.length); + break; + } + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + + +#ifdef DLT_JUNIPER_MFR +void +juniper_mfr_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_mfr"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_MFR; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + + /* child-link ? */ + if (l2info.cookie_len == 0) { + mfr_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + /* first try the LSQ protos */ + if (l2info.cookie_len == AS_PIC_COOKIE_LEN) { + switch(l2info.proto) { + case JUNIPER_LSQ_L3_PROTO_IPV4: + ip_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + case JUNIPER_LSQ_L3_PROTO_IPV6: + ip6_print(ndo, p,l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + case JUNIPER_LSQ_L3_PROTO_MPLS: + mpls_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + case JUNIPER_LSQ_L3_PROTO_ISO: + isoclns_print(ndo, p, l2info.length); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + default: + break; + } + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + /* suppress Bundle-ID if frame was captured on a child-link */ + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + if (ndo->ndo_eflag && EXTRACT_BE_U_4(l2info.cookie) != 1) + ND_PRINT("Bundle-ID %u, ", l2info.bundle); + switch (l2info.proto) { + case (LLCSAP_ISONS<<8 | LLCSAP_ISONS): + /* At least one byte is required */ + ND_TCHECK_LEN(p, 1); + isoclns_print(ndo, p + 1, l2info.length - 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(ndo, p - 1, l2info.length + 1); + break; + default: + ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length); + } + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +#ifdef DLT_JUNIPER_MLFR +void +juniper_mlfr_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_mlfr"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_MLFR; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + + /* suppress Bundle-ID if frame was captured on a child-link */ + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + if (ndo->ndo_eflag && EXTRACT_BE_U_4(l2info.cookie) != 1) + ND_PRINT("Bundle-ID %u, ", l2info.bundle); + switch (l2info.proto) { + case (LLC_UI): + case (LLC_UI<<8): + isoclns_print(ndo, p, l2info.length); + 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(ndo, p - 1, l2info.length + 1); + break; + default: + ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length); + } + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +/* + * ATM1 PIC cookie format + * + * +-----+-------------------------+-------------------------------+ + * |fmtid| vc index | channel ID | + * +-----+-------------------------+-------------------------------+ + */ + +#ifdef DLT_JUNIPER_ATM1 +void +juniper_atm1_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + int llc_hdrlen; + + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_atm1"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_ATM1; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + + if (l2info.cookie[0] == 0x80) { /* OAM cell ? */ + oam_print(ndo, p, l2info.length, ATM_OAM_NOHEC); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + if (GET_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */ + GET_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */ + + llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL); + if (llc_hdrlen > 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + } + + if (GET_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */ + /* At least one byte is required */ + ND_TCHECK_LEN(p, 1); + isoclns_print(ndo, p + 1, l2info.length - 1); + /* FIXME check if frame was recognized */ + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + if (ip_heuristic_guess(ndo, p, l2info.length) != 0) { /* last try - vcmux encaps ? */ + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + ndo->ndo_ll_hdr_len += l2info.header_len; +} +#endif + +/* + * ATM2 PIC cookie format + * + * +-------------------------------+---------+---+-----+-----------+ + * | channel ID | reserv |AAL| CCRQ| gap cnt | + * +-------------------------------+---------+---+-----+-----------+ + */ + +#ifdef DLT_JUNIPER_ATM2 +void +juniper_atm2_if_print(netdissect_options *ndo, + const struct pcap_pkthdr *h, const u_char *p) +{ + int llc_hdrlen; + + struct juniper_l2info_t l2info; + + ndo->ndo_protocol = "juniper_atm2"; + memset(&l2info, 0, sizeof(l2info)); + l2info.pictype = DLT_JUNIPER_ATM2; + if (juniper_parse_header(ndo, p, h, &l2info) == 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + p+=l2info.header_len; + + if (l2info.cookie[7] & ATM2_PKT_TYPE_MASK) { /* OAM cell ? */ + oam_print(ndo, p, l2info.length, ATM_OAM_NOHEC); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + if (GET_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */ + GET_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */ + + llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL); + if (llc_hdrlen > 0) { + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + } + + if (l2info.direction != JUNIPER_BPF_PKT_IN && /* ether-over-1483 encaps ? */ + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + (EXTRACT_BE_U_4(l2info.cookie) & ATM2_GAP_COUNT_MASK)) { + ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL); + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + if (GET_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */ + /* At least one byte is required */ + ND_TCHECK_LEN(p, 1); + isoclns_print(ndo, p + 1, l2info.length - 1); + /* FIXME check if frame was recognized */ + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + if(juniper_ppp_heuristic_guess(ndo, p, l2info.length) != 0) { /* PPPoA vcmux encaps ? */ + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + if (ip_heuristic_guess(ndo, p, l2info.length) != 0) { /* last try - vcmux encaps ? */ + ndo->ndo_ll_hdr_len += l2info.header_len; + return; + } + + ndo->ndo_ll_hdr_len += l2info.header_len; +} + +/* try to guess, based on all PPP protos that are supported in + * a juniper router if the payload data is encapsulated using PPP */ +static int +juniper_ppp_heuristic_guess(netdissect_options *ndo, + const u_char *p, u_int length) +{ + switch(GET_BE_U_2(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 : + case PPP_IPV6 : + case PPP_IPV6CP : + ppp_print(ndo, p, length); + break; + + default: + return 0; /* did not find a ppp header */ + break; + } + return 1; /* we printed a ppp packet */ +} +#endif + +static int +ip_heuristic_guess(netdissect_options *ndo, + const u_char *p, u_int length) +{ + switch(GET_U_1(p)) { + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4a: + case 0x4b: + case 0x4c: + case 0x4d: + case 0x4e: + case 0x4f: + ip_print(ndo, p, length); + break; + 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(ndo, p, length); + break; + default: + return 0; /* did not find a ip header */ + break; + } + return 1; /* we printed an v4/v6 packet */ +} + +static int +juniper_read_tlv_value(netdissect_options *ndo, + 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 = GET_U_1(p); + break; + case 2: + tlv_value = GET_LE_U_2(p); + break; + case 3: + tlv_value = GET_LE_U_3(p); + break; + case 4: + tlv_value = GET_LE_U_4(p); + break; + default: + tlv_value = -1; + break; + } + } else { + /* TLVs >= 128 are big endian encoded */ + switch (tlv_len) { + case 1: + tlv_value = GET_U_1(p); + break; + case 2: + tlv_value = GET_BE_U_2(p); + break; + case 3: + tlv_value = GET_BE_U_3(p); + break; + case 4: + tlv_value = GET_BE_U_4(p); + break; + default: + tlv_value = -1; + break; + } + } + return tlv_value; +} + +static int +juniper_parse_header(netdissect_options *ndo, + const u_char *p, const struct pcap_pkthdr *h, struct juniper_l2info_t *l2info) +{ + const struct juniper_cookie_table_t *lp; + u_int idx, extension_length, jnx_header_len = 0; + uint8_t tlv_type,tlv_len; +#ifdef DLT_JUNIPER_ATM2 + uint32_t control_word; +#endif + 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; + l2info->flags = GET_U_1(p + 3); + l2info->direction = GET_U_1(p + 3) & JUNIPER_BPF_PKT_IN; + + if (GET_BE_U_3(p) != JUNIPER_MGC_NUMBER) { /* magic number found ? */ + ND_PRINT("no magic-number found!"); + return 0; + } + + if (ndo->ndo_eflag) /* print direction */ + ND_PRINT("%3s ", tok2str(juniper_direction_values, "---", l2info->direction)); + + /* magic number + flags */ + jnx_header_len = 4; + + if (ndo->ndo_vflag > 1) + ND_PRINT("\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 ? */ + extension_length = GET_BE_U_2(tptr); + jnx_header_len += 2; + tptr +=2; + + /* nail up the total length - + * just in case something goes wrong + * with TLV parsing */ + jnx_header_len += extension_length; + + if (ndo->ndo_vflag > 1) + ND_PRINT(", PCAP Extension(s) total length %u", extension_length); + + ND_TCHECK_LEN(tptr, extension_length); + while (extension_length > JUNIPER_EXT_TLV_OVERHEAD) { + tlv_type = GET_U_1(tptr); + tptr++; + tlv_len = GET_U_1(tptr); + tptr++; + tlv_value = 0; + + /* sanity checks */ + if (tlv_type == 0 || tlv_len == 0) + break; + ND_LCHECK_U(extension_length, tlv_len + JUNIPER_EXT_TLV_OVERHEAD); + + if (ndo->ndo_vflag > 1) + ND_PRINT("\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(ndo, 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 (ndo->ndo_vflag > 1) + ND_PRINT("%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 (ndo->ndo_vflag > 1) + ND_PRINT("%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 (ndo->ndo_vflag > 1) + ND_PRINT("%u", tlv_value); + } + break; + } + + tptr+=tlv_len; + extension_length -= tlv_len+JUNIPER_EXT_TLV_OVERHEAD; + } + + if (ndo->ndo_vflag > 1) + ND_PRINT("\n\t-----original packet-----\n\t"); + } + + if ((l2info->flags & JUNIPER_BPF_NO_L2 ) == JUNIPER_BPF_NO_L2 ) { + if (ndo->ndo_eflag) + ND_PRINT("no-L2-hdr, "); + + /* there is no link-layer present - + * perform the v4/v6 heuristics + * to figure out what it is + */ + ND_TCHECK_1(p + (jnx_header_len + 4)); + if (ip_heuristic_guess(ndo, p + jnx_header_len + 4, + l2info->length - (jnx_header_len + 4)) == 0) + ND_PRINT("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 for one matching our PIC type */ + lp = NULL; + for (const struct juniper_cookie_table_t *table_lp = juniper_cookie_table; + table_lp->s != NULL; table_lp++) { + if (table_lp->pictype == l2info->pictype) { + lp = table_lp; + break; + } + } + + /* If we found one matching our PIC type, copy its values */ + if (lp != NULL) { + l2info->cookie_len += lp->cookie_len; + + switch (GET_U_1(p)) { + 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 && + (GET_U_1(p) & 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 (ndo->ndo_eflag) + ND_PRINT("%s-PIC, cookie-len %u", + lp->s, + l2info->cookie_len); + + if (l2info->cookie_len > 8) { + nd_print_invalid(ndo); + return 0; + } + + if (l2info->cookie_len > 0) { + ND_TCHECK_LEN(p, l2info->cookie_len); + if (ndo->ndo_eflag) + ND_PRINT(", cookie 0x"); + for (idx = 0; idx < l2info->cookie_len; idx++) { + l2info->cookie[idx] = GET_U_1(p + idx); /* copy cookie data */ + if (ndo->ndo_eflag) ND_PRINT("%02x", GET_U_1(p + idx)); + } + } + + if (ndo->ndo_eflag) ND_PRINT(": "); /* print demarc b/w L2/L3*/ + + + l2info->proto = GET_BE_U_2(p + l2info->cookie_len); + } + 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: + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + l2info->bundle = (EXTRACT_BE_U_2(&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 = GET_BE_U_2(p); + l2info->header_len += 2; + l2info->length -= 2; + l2info->caplen -= 2; + break; + case AS_COOKIE_ID: + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + l2info->bundle = (EXTRACT_BE_U_2(&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 = GET_BE_U_2(p); + l2info->header_len += 2; + l2info->length -= 2; + l2info->caplen -= 2; + break; + case AS_COOKIE_ID: + /* use EXTRACT_, not GET_ (not packet buffer pointer) */ + l2info->bundle = (EXTRACT_BE_U_2(&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: + ND_TCHECK_4(p); + /* ATM cell relay control word present ? */ + if (l2info->cookie[7] & ATM2_PKT_TYPE_MASK) { + control_word = GET_BE_U_4(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 (ndo->ndo_eflag) + ND_PRINT("control-word 0x%08x ", control_word); + } + break; +#endif +#ifdef DLT_JUNIPER_ES + case DLT_JUNIPER_ES: + break; +#endif +#ifdef DLT_JUNIPER_GGSN + case DLT_JUNIPER_GGSN: + break; +#endif +#ifdef DLT_JUNIPER_SERVICES + case DLT_JUNIPER_SERVICES: + 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 +#ifdef DLT_JUNIPER_MONITOR + case DLT_JUNIPER_MONITOR: + break; +#endif +#ifdef DLT_JUNIPER_PPPOE + case DLT_JUNIPER_PPPOE: + break; +#endif +#ifdef DLT_JUNIPER_PPPOE_ATM + case DLT_JUNIPER_PPPOE_ATM: + break; +#endif + + default: + ND_PRINT("Unknown Juniper DLT_ type %u: ", l2info->pictype); + break; + } + + if (ndo->ndo_eflag) + ND_PRINT("hlen %u, proto 0x%04x, ", l2info->header_len, l2info->proto); + + return 1; /* everything went ok so far. continue parsing */ +invalid: + nd_print_invalid(ndo); + return 0; +} +#endif /* defined(DLT_JUNIPER_GGSN) || defined(DLT_JUNIPER_ES) || \ + defined(DLT_JUNIPER_MONITOR) || defined(DLT_JUNIPER_SERVICES) || \ + defined(DLT_JUNIPER_PPPOE) || defined(DLT_JUNIPER_ETHER) || \ + defined(DLT_JUNIPER_PPP) || defined(DLT_JUNIPER_FRELAY) || \ + defined(DLT_JUNIPER_CHDLC) || defined(DLT_JUNIPER_PPPOE_ATM) || \ + defined(DLT_JUNIPER_MLPPP) || defined(DLT_JUNIPER_MFR) || \ + defined(DLT_JUNIPER_MLFR) || defined(DLT_JUNIPER_ATM1) || \ + defined(DLT_JUNIPER_ATM2) */ |