#ifndef lint
static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-juniper.c,v 1.16 2005-05-17 09:37:30 hannes Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-juniper.c,v 1.17 2005-05-22 21:18:17 hannes Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
#include <stdio.h>
#include "interface.h"
+#include "addrtoname.h"
#include "extract.h"
#include "ppp.h"
#include "llc.h"
#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) /* must be 0! */
+#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 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"},
{ DLT_JUNIPER_MFR, 4, "MFR"},
{ DLT_JUNIPER_PPPOE, 0, "PPPoE"},
{ DLT_JUNIPER_PPPOE_ATM, 0, "PPPoE ATM"},
+ { DLT_JUNIPER_GGSN, 8, "GGSN"},
+ { DLT_JUNIPER_MONITOR, 8, "MONITOR"},
+ { DLT_JUNIPER_SERVICES, 8, "AS"},
+ { DLT_JUNIPER_ES, 0, "ES"},
};
struct juniper_l2info_t {
#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
+
+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);
static int juniper_parse_header (const u_char *, const struct pcap_pkthdr *, struct juniper_l2info_t *);
+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;
+}
+
+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;
+}
+
+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;
+}
+
+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;
+}
+
u_int
juniper_pppoe_print(const struct pcap_pkthdr *h, register const u_char *p)
{
l2info->caplen = h->caplen;
l2info->direction = p[3]&JUNIPER_BPF_PKT_IN;
+ TCHECK2(p[0],4);
if (EXTRACT_24BITS(p) != JUNIPER_MGC_NUMBER) /* magic number found ? */
return 0;
else
* perform the v4/v6 heuristics
* to figure out what it is
*/
+ TCHECK2(p[8],1);
if(ip_heuristic_guess(p+8,l2info->length-8) == 0)
printf("no IP-hdr found!");
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->caplen -= 2;
break;
case DLT_JUNIPER_ATM2:
+ TCHECK2(p[0],4);
/* ATM cell relay control word present ? */
if (l2info->cookie[7] & ATM2_PKT_TYPE_MASK && *p & 0x08) {
l2info->header_len += 4;
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;
}
projects / tcpdump / commitdiff
