X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/ecd1d49fcd5245a35b7057327fb1d14685cc4e93..refs/heads/tcpdump-3.9:/print-juniper.c

diff --git a/print-juniper.c b/print-juniper.c
index c98c8708..fde0b935 100644
--- a/print-juniper.c
+++ b/print-juniper.c
@@ -15,7 +15,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-juniper.c,v 1.1 2004-10-19 15:59:41 hannes Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-juniper.c,v 1.8.2.22 2006-05-10 22:42:46 guy Exp $ (LBL)";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -28,20 +28,586 @@ static const char rcsid[] _U_ =
 #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 BPF_OUT           0       /* Outgoing packet */
-#define BPF_IN            1       /* Incoming packet */
-#define BPF_PKT_IN        0x1     /* Incoming packet */
-#define BPF_NO_L2         0x2     /* L2 header stripped */
+#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_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}
+};
+
+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;
+};
+
+#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 ppp_heuristic_guess(register const u_char *, u_int);
-static int juniper_parse_header (const u_char *, u_int8_t *, u_int);
+int juniper_ppp_heuristic_guess(register const u_char *, 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 *)p;
+
+        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(EXTRACT_32BITS(&ih->src_ip)),
+                       ipaddr_string(EXTRACT_32BITS(&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
@@ -51,58 +617,45 @@ static int juniper_parse_header (const u_char *, u_int8_t *, u_int);
  *     +-----+-------------------------+-------------------------------+
  */
 
+#ifdef DLT_JUNIPER_ATM1
 u_int
 juniper_atm1_print(const struct pcap_pkthdr *h, register const u_char *p)
 {
-	register u_int length = h->len;
-	register u_int caplen = h->caplen;
         u_int16_t extracted_ethertype;
-        u_int8_t direction;
-        u_int32_t cookie1;
 
-        if(juniper_parse_header(p, &direction,length) == 0)
-            return 0;
+        struct juniper_l2info_t l2info;
 
-        p+=4;
-        length-=4;
-        caplen-=4;
+        l2info.pictype = DLT_JUNIPER_ATM1;
+        if(juniper_parse_header(p, h, &l2info) == 0)
+            return l2info.header_len;
 
-        cookie1=EXTRACT_32BITS(p);
+        p+=l2info.header_len;
 
-        if (eflag) {
-            /* FIXME decode channel-id, vc-index, fmt-id
-               for once lets just hexdump the cookie */
-
-            printf("ATM1 cookie 0x%08x, ", EXTRACT_32BITS(p));
-        }
-
-        p+=4;
-        length-=4;
-        caplen-=4;
-
-        if (cookie1 & 0x80000000) { /* OAM cell ? */
-            oam_print(p,length);
+        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, length, caplen, NULL, NULL,
+            if (llc_print(p, l2info.length, l2info.caplen, NULL, NULL,
                           &extracted_ethertype) != 0)
-                return 8;
+                return l2info.header_len;
         }
 
         if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */
-            isoclns_print(p + 1, length - 1, caplen - 1);
+            isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1);
             /* FIXME check if frame was recognized */
-            return 8;
+            return l2info.header_len;
         }
 
-        if(ip_heuristic_guess(p, length) != 0) /* last try - vcmux encaps ? */
-            return 0;
+        if(ip_heuristic_guess(p, l2info.length) != 0) /* last try - vcmux encaps ? */
+            return l2info.header_len;
 
-	return (8);
+	return l2info.header_len;
 }
+#endif
 
 /*
  *     ATM2 PIC cookie format
@@ -112,75 +665,60 @@ juniper_atm1_print(const struct pcap_pkthdr *h, register const u_char *p)
  *     +-------------------------------+---------+---+-----+-----------+
  */
 
+#ifdef DLT_JUNIPER_ATM2
 u_int
 juniper_atm2_print(const struct pcap_pkthdr *h, register const u_char *p)
 {
-	register u_int length = h->len;
-	register u_int caplen = h->caplen;
         u_int16_t extracted_ethertype;
-        u_int8_t direction;
-        u_int32_t cookie1,cookie2;
-
-        if(juniper_parse_header(p, &direction,length) == 0)
-            return 0;
 
-        p+=4;
-        length-=4;
-        caplen-=4;
+        struct juniper_l2info_t l2info;
 
-        cookie1=EXTRACT_32BITS(p);
-        cookie2=EXTRACT_32BITS(p+4);
+        l2info.pictype = DLT_JUNIPER_ATM2;
+        if(juniper_parse_header(p, h, &l2info) == 0)
+            return l2info.header_len;
 
-        if (eflag) {
-            /* FIXME decode channel, fmt-id, ccrq, aal, gap cnt
-               for once lets just hexdump the cookie */
-
-            printf("ATM2 cookie 0x%08x%08x, ",
-                   EXTRACT_32BITS(p),
-                   EXTRACT_32BITS(p+4));
-        }
-
-        p+=8;
-        length-=8;
-        caplen-=8;
+        p+=l2info.header_len;
 
-        if (cookie2 & ATM2_PKT_TYPE_MASK) { /* OAM cell ? */
-            oam_print(p,length);
-            return 12;
+        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, length, caplen, NULL, NULL,
+            if (llc_print(p, l2info.length, l2info.caplen, NULL, NULL,
                           &extracted_ethertype) != 0)
-                return 12;
+                return l2info.header_len;
         }
 
-        if (direction != BPF_PKT_IN && /* ether-over-1483 encaps ? */
-            (cookie1 & ATM2_GAP_COUNT_MASK)) {
-            ether_print(p, length, caplen);
-            return 12;
+        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, length - 1, caplen - 1);
+            isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1);
             /* FIXME check if frame was recognized */
-            return 12;
+            return l2info.header_len;
         }
 
-        if(ppp_heuristic_guess(p, length) != 0) /* PPPoA vcmux encaps ? */
-            return 12;
+        if(juniper_ppp_heuristic_guess(p, l2info.length) != 0) /* PPPoA vcmux encaps ? */
+            return l2info.header_len;
 
-        if(ip_heuristic_guess(p, length) != 0) /* last try - vcmux encaps ? */
-            return 12;
+        if(ip_heuristic_guess(p, l2info.length) != 0) /* last try - vcmux encaps ? */
+            return l2info.header_len;
 
-	return (12);
+	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
-ppp_heuristic_guess(register const u_char *p, u_int length) {
+juniper_ppp_heuristic_guess(register const u_char *p, u_int length) {
 
     switch(EXTRACT_16BITS(p)) {
     case PPP_IP :
@@ -193,7 +731,7 @@ ppp_heuristic_guess(register const u_char *p, u_int length) {
     case PPP_LCP :
     case PPP_PAP :
     case PPP_CHAP :
-    case PPP_MP :
+    case PPP_ML :
 #ifdef INET6
     case PPP_IPV6 :
     case PPP_IPV6CP :
@@ -223,8 +761,8 @@ ip_heuristic_guess(register const u_char *p, u_int length) {
     case 0x4d:
     case 0x4e:
     case 0x4f:
-        ip_print(p, length);
-        break;
+	    ip_print(gndo, p, length);
+	    break;
 #ifdef INET6
     case 0x60:
     case 0x61:
@@ -253,23 +791,41 @@ ip_heuristic_guess(register const u_char *p, u_int length) {
 }
 
 static int
-juniper_parse_header (const u_char *p, u_int8_t *direction, u_int length) {
+juniper_parse_header (const u_char *p, const struct pcap_pkthdr *h, struct juniper_l2info_t *l2info) {
 
-    *direction = p[3]&BPF_PKT_IN;
-    
-    if (EXTRACT_24BITS(p) != 0x4d4743) /* magic number found ? */
-        return -1;
+    struct juniper_cookie_table_t *lp = juniper_cookie_table;
+    u_int idx, offset;
+#ifdef DLT_JUNIPER_ATM2
+    u_int32_t control_word;
+#endif
+
+    l2info->header_len = 0;
+    l2info->cookie_len = 0;
+    l2info->proto = 0;
+
+
+    l2info->length = h->len;
+    l2info->caplen = h->caplen;
+    l2info->direction = p[3]&JUNIPER_BPF_PKT_IN;
     
-    if (*direction == BPF_PKT_IN) {
-        if (eflag)
-            printf("%3s ", "In");
-    }
-    else {
-        if (eflag)
-            printf("%3s ", "Out");
-    }
+    TCHECK2(p[0],4);
+    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));
 
-    if ((p[3] & BPF_NO_L2 ) == BPF_NO_L2 ) {            
+    /* extensions present ?  - calculate how much bytes to skip */
+    if ((p[3] & JUNIPER_BPF_EXT ) == JUNIPER_BPF_EXT ) {
+        offset = 6 + EXTRACT_16BITS(p+4);
+        if (eflag>1)
+            printf("ext-len %u, ",EXTRACT_16BITS(p+4));
+    } else
+        offset = 4;
+
+    if ((p[3] & JUNIPER_BPF_NO_L2 ) == JUNIPER_BPF_NO_L2 ) {            
         if (eflag)
             printf("no-L2-hdr, ");
 
@@ -277,11 +833,200 @@ juniper_parse_header (const u_char *p, u_int8_t *direction, u_int length) {
          * perform the v4/v6 heuristics
          * to figure out what it is
          */
-        if(ip_heuristic_guess(p+8,length-8) == 0)
+        TCHECK2(p[offset+4],1);
+        if(ip_heuristic_guess(p+offset+4,l2info->length-(offset+4)) == 0)
             printf("no IP-hdr found!");
 
+        l2info->header_len=offset+4;
         return 0; /* stop parsing the output further */
         
     }
+    l2info->header_len = offset;
+    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_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:
+ */