* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
- * Original code by Hannes Gredler (hannes@juniper.net)
+ * 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"
+#include <config.h>
#endif
-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"
+
+#include <string.h>
-#include "interface.h"
+#include "netdissect.h"
#include "addrtoname.h"
#include "extract.h"
#include "ppp.h"
};
/* 1 byte type and 1-byte length */
-#define JUNIPER_EXT_TLV_OVERHEAD 2
+#define JUNIPER_EXT_TLV_OVERHEAD 2U
static const struct tok jnx_ext_tlv_values[] = {
{ JUNIPER_EXT_TLV_IFD_IDX, "Device Interface Index" },
struct juniper_cookie_table_t {
uint32_t pictype; /* pic type */
- uint8_t cookie_len; /* cookie len */
+ uint8_t cookie_len; /* cookie len */
const char *s; /* pic name */
};
{ 0, NULL}
};
-static int ip_heuristic_guess(netdissect_options *, register const u_char *, u_int);
-static int juniper_ppp_heuristic_guess(netdissect_options *, register const u_char *, u_int);
+static int ip_heuristic_guess(netdissect_options *, const u_char *, u_int);
+static int juniper_ppp_heuristic_guess(netdissect_options *, const u_char *, u_int);
static int juniper_parse_header(netdissect_options *, const u_char *, const struct pcap_pkthdr *, struct juniper_l2info_t *);
#ifdef DLT_JUNIPER_GGSN
u_int
-juniper_ggsn_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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 {
- uint8_t svc_id;
- uint8_t flags_len;
- uint8_t proto;
- uint8_t flags;
- uint8_t vlan_id[2];
- uint8_t res[2];
+ 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_if";
l2info.pictype = DLT_JUNIPER_GGSN;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
p+=l2info.header_len;
gh = (struct juniper_ggsn_header *)&l2info.cookie;
+ ND_TCHECK_SIZE(gh);
+ proto = EXTRACT_U_1(gh->proto);
if (ndo->ndo_eflag) {
- ND_PRINT((ndo, "proto %s (%u), vlan %u: ",
- tok2str(juniper_protocol_values,"Unknown",gh->proto),
- gh->proto,
- EXTRACT_16BITS(&gh->vlan_id[0])));
+ ND_PRINT("proto %s (%u), vlan %u: ",
+ tok2str(juniper_protocol_values,"Unknown",proto),
+ proto,
+ EXTRACT_BE_U_2(gh->vlan_id));
}
- switch (gh->proto) {
+ switch (proto) {
case JUNIPER_PROTO_IPV4:
ip_print(ndo, p, l2info.length);
break;
break;
default:
if (!ndo->ndo_eflag)
- ND_PRINT((ndo, "unknown GGSN proto (%u)", gh->proto));
+ ND_PRINT("unknown GGSN proto (%u)", proto);
}
return l2info.header_len;
+
+trunc:
+ ND_PRINT("[|juniper_services]");
+ return l2info.header_len;
}
#endif
#ifdef DLT_JUNIPER_ES
u_int
-juniper_es_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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 {
- uint8_t sa_index[2];
- uint8_t ttl;
- uint8_t type;
- uint8_t spi[4];
- uint8_t src_ip[4];
- uint8_t dst_ip[4];
+ 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_if";
l2info.pictype = DLT_JUNIPER_ES;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
p+=l2info.header_len;
- ih = (struct juniper_ipsec_header *)p;
+ ih = (const struct juniper_ipsec_header *)p;
- switch (ih->type) {
+ ND_TCHECK_SIZE(ih);
+ switch (EXTRACT_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 = 0;
break;
default:
- ND_PRINT((ndo, "ES Invalid type %u, length %u",
- ih->type,
- l2info.length));
+ ND_PRINT("ES Invalid type %u, length %u",
+ EXTRACT_U_1(ih->type),
+ l2info.length);
return l2info.header_len;
}
if (ndo->ndo_eflag) {
if (!es_type_bundle) {
- ND_PRINT((ndo, "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(ndo, &ih->src_ip),
- ipaddr_string(ndo, &ih->dst_ip),
- l2info.length));
+ ND_PRINT("ES SA, index %u, ttl %u type %s (%u), spi %u, Tunnel %s > %s, length %u\n",
+ EXTRACT_BE_U_2(ih->sa_index),
+ EXTRACT_U_1(ih->ttl),
+ tok2str(juniper_ipsec_type_values,"Unknown",EXTRACT_U_1(ih->type)),
+ EXTRACT_U_1(ih->type),
+ EXTRACT_BE_U_4(ih->spi),
+ ipaddr_string(ndo, ih->src_ip),
+ ipaddr_string(ndo, ih->dst_ip),
+ l2info.length);
} else {
- ND_PRINT((ndo, "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));
+ ND_PRINT("ES SA, index %u, ttl %u type %s (%u), length %u\n",
+ EXTRACT_BE_U_2(ih->sa_index),
+ EXTRACT_U_1(ih->ttl),
+ tok2str(juniper_ipsec_type_values,"Unknown",EXTRACT_U_1(ih->type)),
+ EXTRACT_U_1(ih->type),
+ l2info.length);
}
}
ip_print(ndo, p, l2info.length);
return l2info.header_len;
+
+trunc:
+ ND_PRINT("[|juniper_services]");
+ return l2info.header_len;
}
#endif
#ifdef DLT_JUNIPER_MONITOR
u_int
-juniper_monitor_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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 {
- uint8_t pkt_type;
- uint8_t padding;
- uint8_t iif[2];
- uint8_t service_id[4];
+ 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_if";
l2info.pictype = DLT_JUNIPER_MONITOR;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
p+=l2info.header_len;
- mh = (struct juniper_monitor_header *)p;
+ mh = (const struct juniper_monitor_header *)p;
+ ND_TCHECK_SIZE(mh);
if (ndo->ndo_eflag)
- ND_PRINT((ndo, "service-id %u, iif %u, pkt-type %u: ",
- EXTRACT_32BITS(&mh->service_id),
- EXTRACT_16BITS(&mh->iif),
- mh->pkt_type));
+ ND_PRINT("service-id %u, iif %u, pkt-type %u: ",
+ EXTRACT_BE_U_4(mh->service_id),
+ EXTRACT_BE_U_2(mh->iif),
+ EXTRACT_U_1(mh->pkt_type));
/* no proto field - lets guess by first byte of IP header*/
ip_heuristic_guess (ndo, p, l2info.length);
return l2info.header_len;
+
+trunc:
+ ND_PRINT("[|juniper_services]");
+ return l2info.header_len;
}
#endif
#ifdef DLT_JUNIPER_SERVICES
u_int
-juniper_services_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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 {
- uint8_t svc_id;
- uint8_t flags_len;
- uint8_t svc_set_id[2];
- uint8_t dir_iif[4];
+ 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_if";
l2info.pictype = DLT_JUNIPER_SERVICES;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
p+=l2info.header_len;
- sh = (struct juniper_services_header *)p;
+ sh = (const struct juniper_services_header *)p;
+ ND_TCHECK_SIZE(sh);
if (ndo->ndo_eflag)
- ND_PRINT((ndo, "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])));
+ ND_PRINT("service-id %u flags 0x%02x service-set-id 0x%04x iif %u: ",
+ EXTRACT_U_1(sh->svc_id),
+ EXTRACT_U_1(sh->flags_len),
+ EXTRACT_BE_U_2(sh->svc_set_id),
+ EXTRACT_BE_U_3(sh->dir_iif));
/* no proto field - lets guess by first byte of IP header*/
ip_heuristic_guess (ndo, p, l2info.length);
return l2info.header_len;
+
+trunc:
+ ND_PRINT("[|juniper_services]");
+ return l2info.header_len;
}
#endif
#ifdef DLT_JUNIPER_PPPOE
u_int
-juniper_pppoe_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_PPPOE;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
#ifdef DLT_JUNIPER_ETHER
u_int
-juniper_ether_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_ETHER;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
#ifdef DLT_JUNIPER_PPP
u_int
-juniper_ppp_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_PPP;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
#ifdef DLT_JUNIPER_FRELAY
u_int
-juniper_frelay_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_FRELAY;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
#ifdef DLT_JUNIPER_CHDLC
u_int
-juniper_chdlc_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_CHDLC;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
#ifdef DLT_JUNIPER_PPPOE_ATM
u_int
-juniper_pppoe_atm_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_PPPOE_ATM;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
p+=l2info.header_len;
- extracted_ethertype = EXTRACT_16BITS(p);
+ ND_TCHECK_2(p);
+ extracted_ethertype = EXTRACT_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) == 0)
+ l2info.caplen-ETHERTYPE_LEN,
+ NULL, NULL) == 0)
/* ether_type not known, probably it wasn't one */
- ND_PRINT((ndo, "unknown ethertype 0x%04x", extracted_ethertype));
+ ND_PRINT("unknown ethertype 0x%04x", extracted_ethertype);
return l2info.header_len;
+
+trunc:
+ ND_PRINT("[|juniper_pppoe_atm]");
+ return l2info.header_len;
}
#endif
#ifdef DLT_JUNIPER_MLPPP
u_int
-juniper_mlppp_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_MLPPP;
if (juniper_parse_header(ndo, 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 (ndo->ndo_eflag &&
- EXTRACT_16BITS(&l2info.cookie) != PPP_OSI &&
- EXTRACT_16BITS(&l2info.cookie) != (PPP_ADDRESS << 8 | PPP_CONTROL))
- ND_PRINT((ndo, "Bundle-ID %u: ", l2info.bundle));
+ EXTRACT_BE_U_2(&l2info.cookie) != PPP_OSI &&
+ EXTRACT_BE_U_2(&l2info.cookie) != (PPP_ADDRESS << 8 | PPP_CONTROL))
+ ND_PRINT("Bundle-ID %u: ", l2info.bundle);
p+=l2info.header_len;
mpls_print(ndo, p, l2info.length);
return l2info.header_len;
case JUNIPER_LSQ_L3_PROTO_ISO:
- isoclns_print(ndo, p, l2info.length, l2info.caplen);
+ isoclns_print(ndo, p, l2info.length);
return l2info.header_len;
default:
break;
}
/* zero length cookie ? */
- switch (EXTRACT_16BITS(&l2info.cookie)) {
+ switch (EXTRACT_BE_U_2(&l2info.cookie)) {
case PPP_OSI:
ppp_print(ndo, p - 2, l2info.length + 2);
break;
#ifdef DLT_JUNIPER_MFR
u_int
-juniper_mfr_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
+ memset(&l2info, 0, sizeof(l2info));
l2info.pictype = DLT_JUNIPER_MFR;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
mpls_print(ndo, p, l2info.length);
return l2info.header_len;
case JUNIPER_LSQ_L3_PROTO_ISO:
- isoclns_print(ndo, p, l2info.length, l2info.caplen);
+ isoclns_print(ndo, p, l2info.length);
return l2info.header_len;
default:
break;
}
/* suppress Bundle-ID if frame was captured on a child-link */
- if (ndo->ndo_eflag && EXTRACT_32BITS(l2info.cookie) != 1)
- ND_PRINT((ndo, "Bundle-ID %u, ", l2info.bundle));
+ 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):
- isoclns_print(ndo, p + 1, l2info.length - 1, l2info.caplen - 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, l2info.caplen + 1);
+ isoclns_print(ndo, p - 1, l2info.length + 1);
break;
default:
- ND_PRINT((ndo, "unknown protocol 0x%04x, length %u", l2info.proto, l2info.length));
+ ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length);
}
return l2info.header_len;
#ifdef DLT_JUNIPER_MLFR
u_int
-juniper_mlfr_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+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_if";
l2info.pictype = DLT_JUNIPER_MLFR;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
p+=l2info.header_len;
/* suppress Bundle-ID if frame was captured on a child-link */
- if (ndo->ndo_eflag && EXTRACT_32BITS(l2info.cookie) != 1)
- ND_PRINT((ndo, "Bundle-ID %u, ", l2info.bundle));
+ 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, l2info.caplen);
+ 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, l2info.caplen + 1);
+ isoclns_print(ndo, p - 1, l2info.length + 1);
break;
default:
- ND_PRINT((ndo, "unknown protocol 0x%04x, length %u", l2info.proto, l2info.length));
+ ND_PRINT("unknown protocol 0x%04x, length %u", l2info.proto, l2info.length);
}
return l2info.header_len;
#ifdef DLT_JUNIPER_ATM1
u_int
-juniper_atm1_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+juniper_atm1_if_print(netdissect_options *ndo,
+ const struct pcap_pkthdr *h, const u_char *p)
{
- uint16_t extracted_ethertype;
+ int llc_hdrlen;
struct juniper_l2info_t l2info;
+ ndo->ndo_protocol = "juniper_atm1_if";
l2info.pictype = DLT_JUNIPER_ATM1;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
return l2info.header_len;
}
- if (EXTRACT_24BITS(p) == 0xfefe03 || /* NLPID encaps ? */
- EXTRACT_24BITS(p) == 0xaaaa03) { /* SNAP encaps ? */
+ ND_TCHECK_3(p);
+ if (EXTRACT_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */
+ EXTRACT_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */
- if (llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL,
- &extracted_ethertype) != 0)
+ llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
+ if (llc_hdrlen > 0)
return l2info.header_len;
}
- if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */
- isoclns_print(ndo, p + 1, l2info.length - 1, l2info.caplen - 1);
+ if (EXTRACT_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */
+ isoclns_print(ndo, p + 1, l2info.length - 1);
/* FIXME check if frame was recognized */
return l2info.header_len;
}
return l2info.header_len;
return l2info.header_len;
+
+trunc:
+ ND_PRINT("[|juniper_atm1]");
+ return l2info.header_len;
}
#endif
#ifdef DLT_JUNIPER_ATM2
u_int
-juniper_atm2_print(netdissect_options *ndo,
- const struct pcap_pkthdr *h, register const u_char *p)
+juniper_atm2_if_print(netdissect_options *ndo,
+ const struct pcap_pkthdr *h, const u_char *p)
{
- uint16_t extracted_ethertype;
+ int llc_hdrlen;
struct juniper_l2info_t l2info;
+ ndo->ndo_protocol = "juniper_atm2_if";
l2info.pictype = DLT_JUNIPER_ATM2;
if (juniper_parse_header(ndo, p, h, &l2info) == 0)
return l2info.header_len;
return l2info.header_len;
}
- if (EXTRACT_24BITS(p) == 0xfefe03 || /* NLPID encaps ? */
- EXTRACT_24BITS(p) == 0xaaaa03) { /* SNAP encaps ? */
+ ND_TCHECK_3(p);
+ if (EXTRACT_BE_U_3(p) == 0xfefe03 || /* NLPID encaps ? */
+ EXTRACT_BE_U_3(p) == 0xaaaa03) { /* SNAP encaps ? */
- if (llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL,
- &extracted_ethertype) != 0)
+ llc_hdrlen = llc_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
+ if (llc_hdrlen > 0)
return l2info.header_len;
}
if (l2info.direction != JUNIPER_BPF_PKT_IN && /* ether-over-1483 encaps ? */
- (EXTRACT_32BITS(l2info.cookie) & ATM2_GAP_COUNT_MASK)) {
+ (EXTRACT_BE_U_4(l2info.cookie) & ATM2_GAP_COUNT_MASK)) {
ether_print(ndo, p, l2info.length, l2info.caplen, NULL, NULL);
return l2info.header_len;
}
- if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */
- isoclns_print(ndo, p + 1, l2info.length - 1, l2info.caplen - 1);
+ if (EXTRACT_U_1(p) == 0x03) { /* Cisco style NLPID encaps ? */
+ isoclns_print(ndo, p + 1, l2info.length - 1);
/* FIXME check if frame was recognized */
return l2info.header_len;
}
return l2info.header_len;
return l2info.header_len;
+
+trunc:
+ ND_PRINT("[|juniper_atm2]");
+ return l2info.header_len;
}
#endif
* a juniper router if the payload data is encapsulated using PPP */
static int
juniper_ppp_heuristic_guess(netdissect_options *ndo,
- register const u_char *p, u_int length)
+ const u_char *p, u_int length)
{
- switch(EXTRACT_16BITS(p)) {
+ switch(EXTRACT_BE_U_2(p)) {
case PPP_IP :
case PPP_OSI :
case PPP_MPLS_UCAST :
case PPP_PAP :
case PPP_CHAP :
case PPP_ML :
-#ifdef INET6
case PPP_IPV6 :
case PPP_IPV6CP :
-#endif
ppp_print(ndo, p, length);
break;
static int
ip_heuristic_guess(netdissect_options *ndo,
- register const u_char *p, u_int length)
+ const u_char *p, u_int length)
{
- switch(p[0]) {
+ switch(EXTRACT_U_1(p)) {
case 0x45:
case 0x46:
case 0x47:
if (tlv_type < 128) {
switch (tlv_len) {
case 1:
- tlv_value = *p;
+ tlv_value = EXTRACT_U_1(p);
break;
case 2:
- tlv_value = EXTRACT_LE_16BITS(p);
+ tlv_value = EXTRACT_LE_U_2(p);
break;
case 3:
- tlv_value = EXTRACT_LE_24BITS(p);
+ tlv_value = EXTRACT_LE_U_3(p);
break;
case 4:
- tlv_value = EXTRACT_LE_32BITS(p);
+ tlv_value = EXTRACT_LE_U_4(p);
break;
default:
tlv_value = -1;
/* TLVs >= 128 are big endian encoded */
switch (tlv_len) {
case 1:
- tlv_value = *p;
+ tlv_value = EXTRACT_U_1(p);
break;
case 2:
- tlv_value = EXTRACT_16BITS(p);
+ tlv_value = EXTRACT_BE_U_2(p);
break;
case 3:
- tlv_value = EXTRACT_24BITS(p);
+ tlv_value = EXTRACT_BE_U_3(p);
break;
case 4:
- tlv_value = EXTRACT_32BITS(p);
+ tlv_value = EXTRACT_BE_U_4(p);
break;
default:
tlv_value = -1;
l2info->length = h->len;
l2info->caplen = h->caplen;
- ND_TCHECK2(p[0], 4);
- l2info->flags = p[3];
- l2info->direction = p[3]&JUNIPER_BPF_PKT_IN;
+ ND_TCHECK_4(p);
+ l2info->flags = EXTRACT_U_1(p + 3);
+ l2info->direction = EXTRACT_U_1(p + 3) & JUNIPER_BPF_PKT_IN;
- if (EXTRACT_24BITS(p) != JUNIPER_MGC_NUMBER) { /* magic number found ? */
- ND_PRINT((ndo, "no magic-number found!"));
+ if (EXTRACT_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((ndo, "%3s ", tok2str(juniper_direction_values, "---", l2info->direction)));
+ ND_PRINT("%3s ", tok2str(juniper_direction_values, "---", l2info->direction));
/* magic number + flags */
jnx_header_len = 4;
if (ndo->ndo_vflag > 1)
- ND_PRINT((ndo, "\n\tJuniper PCAP Flags [%s]",
- bittok2str(jnx_flag_values, "none", l2info->flags)));
+ 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 ? */
- ND_TCHECK2(tptr[0], 2);
- jnx_ext_len = EXTRACT_16BITS(tptr);
+ ND_TCHECK_2(tptr);
+ jnx_ext_len = EXTRACT_BE_U_2(tptr);
jnx_header_len += 2;
tptr +=2;
jnx_header_len += jnx_ext_len;
if (ndo->ndo_vflag > 1)
- ND_PRINT((ndo, ", PCAP Extension(s) total length %u", jnx_ext_len));
+ ND_PRINT(", PCAP Extension(s) total length %u", jnx_ext_len);
- ND_TCHECK2(tptr[0], jnx_ext_len);
+ ND_TCHECK_LEN(tptr, jnx_ext_len);
while (jnx_ext_len > JUNIPER_EXT_TLV_OVERHEAD) {
- tlv_type = *(tptr++);
- tlv_len = *(tptr++);
+ tlv_type = EXTRACT_U_1(tptr);
+ tptr++;
+ tlv_len = EXTRACT_U_1(tptr);
+ tptr++;
tlv_value = 0;
- /* sanity check */
+ /* sanity checks */
if (tlv_type == 0 || tlv_len == 0)
break;
+ if (tlv_len+JUNIPER_EXT_TLV_OVERHEAD > jnx_ext_len)
+ goto trunc;
if (ndo->ndo_vflag > 1)
- ND_PRINT((ndo, "\n\t %s Extension TLV #%u, length %u, value ",
+ ND_PRINT("\n\t %s Extension TLV #%u, length %u, value ",
tok2str(jnx_ext_tlv_values,"Unknown",tlv_type),
tlv_type,
- tlv_len));
+ tlv_len);
tlv_value = juniper_read_tlv_value(tptr, tlv_type, tlv_len);
switch (tlv_type) {
case JUNIPER_EXT_TLV_TTP_IFD_MEDIATYPE:
if (tlv_value != -1) {
if (ndo->ndo_vflag > 1)
- ND_PRINT((ndo, "%s (%u)",
+ ND_PRINT("%s (%u)",
tok2str(juniper_ifmt_values, "Unknown", tlv_value),
- 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((ndo, "%s (%u)",
+ ND_PRINT("%s (%u)",
tok2str(juniper_ifle_values, "Unknown", tlv_value),
- tlv_value));
+ tlv_value);
}
break;
case JUNIPER_EXT_TLV_IFL_IDX: /* fall through */
default:
if (tlv_value != -1) {
if (ndo->ndo_vflag > 1)
- ND_PRINT((ndo, "%u", tlv_value));
+ ND_PRINT("%u", tlv_value);
}
break;
}
}
if (ndo->ndo_vflag > 1)
- ND_PRINT((ndo, "\n\t-----original packet-----\n\t"));
+ 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((ndo, "no-L2-hdr, "));
+ ND_PRINT("no-L2-hdr, ");
/* there is no link-layer present -
* perform the v4/v6 heuristics
* to figure out what it is
*/
- ND_TCHECK2(p[jnx_header_len + 4], 1);
+ 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((ndo, "no IP-hdr found!"));
+ ND_PRINT("no IP-hdr found!");
l2info->header_len=jnx_header_len+4;
return 0; /* stop parsing the output further */
l2info->caplen -= l2info->header_len;
/* search through the cookie table and copy values matching for our PIC type */
+ ND_TCHECK_1(p);
while (lp->s != NULL) {
if (lp->pictype == l2info->pictype) {
l2info->cookie_len += lp->cookie_len;
- switch (p[0]) {
+ switch (EXTRACT_U_1(p)) {
case LS_COOKIE_ID:
l2info->cookie_type = LS_COOKIE_ID;
l2info->cookie_len += 2;
#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) {
+ (EXTRACT_U_1(p) & MFR_BE_MASK) == MFR_BE_MASK) {
l2info->cookie_len = 0;
}
#endif
l2info->caplen -= l2info->cookie_len;
if (ndo->ndo_eflag)
- ND_PRINT((ndo, "%s-PIC, cookie-len %u",
+ ND_PRINT("%s-PIC, cookie-len %u",
lp->s,
- l2info->cookie_len));
+ l2info->cookie_len);
if (l2info->cookie_len > 0) {
- ND_TCHECK2(p[0], l2info->cookie_len);
+ ND_TCHECK_LEN(p, l2info->cookie_len);
if (ndo->ndo_eflag)
- ND_PRINT((ndo, ", cookie 0x"));
+ ND_PRINT(", cookie 0x");
for (idx = 0; idx < l2info->cookie_len; idx++) {
- l2info->cookie[idx] = p[idx]; /* copy cookie data */
- if (ndo->ndo_eflag) ND_PRINT((ndo, "%02x", p[idx]));
+ l2info->cookie[idx] = EXTRACT_U_1(p + idx); /* copy cookie data */
+ if (ndo->ndo_eflag) ND_PRINT("%02x", EXTRACT_U_1(p + idx));
}
}
- if (ndo->ndo_eflag) ND_PRINT((ndo, ": ")); /* print demarc b/w L2/L3*/
+ if (ndo->ndo_eflag) ND_PRINT(": "); /* print demarc b/w L2/L3*/
- l2info->proto = EXTRACT_16BITS(p+l2info->cookie_len);
+ ND_TCHECK_2(p + l2info->cookie_len);
+ l2info->proto = EXTRACT_BE_U_2(p + l2info->cookie_len);
break;
}
++lp;
l2info->bundle = l2info->cookie[1];
break;
case AS_COOKIE_ID:
- l2info->bundle = (EXTRACT_16BITS(&l2info->cookie[6])>>3)&0xfff;
+ l2info->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
break;
default:
case DLT_JUNIPER_MLFR:
switch (l2info->cookie_type) {
case LS_COOKIE_ID:
+ ND_TCHECK_2(p);
l2info->bundle = l2info->cookie[1];
- l2info->proto = EXTRACT_16BITS(p);
+ l2info->proto = EXTRACT_BE_U_2(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->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
break;
default:
case DLT_JUNIPER_MFR:
switch (l2info->cookie_type) {
case LS_COOKIE_ID:
+ ND_TCHECK_2(p);
l2info->bundle = l2info->cookie[1];
- l2info->proto = EXTRACT_16BITS(p);
+ l2info->proto = EXTRACT_BE_U_2(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->bundle = (EXTRACT_BE_U_2(&l2info->cookie[6])>>3)&0xfff;
l2info->proto = (l2info->cookie[5])&JUNIPER_LSQ_L3_PROTO_MASK;
break;
default:
#endif
#ifdef DLT_JUNIPER_ATM2
case DLT_JUNIPER_ATM2:
- ND_TCHECK2(p[0], 4);
+ ND_TCHECK_4(p);
/* ATM cell relay control word present ? */
if (l2info->cookie[7] & ATM2_PKT_TYPE_MASK) {
- control_word = EXTRACT_32BITS(p);
+ control_word = EXTRACT_BE_U_4(p);
/* some control word heuristics */
switch(control_word) {
case 0: /* zero control word */
}
if (ndo->ndo_eflag)
- ND_PRINT((ndo, "control-word 0x%08x ", control_word));
+ ND_PRINT("control-word 0x%08x ", control_word);
}
break;
#endif
#endif
default:
- ND_PRINT((ndo, "Unknown Juniper DLT_ type %u: ", l2info->pictype));
+ ND_PRINT("Unknown Juniper DLT_ type %u: ", l2info->pictype);
break;
}
if (ndo->ndo_eflag > 1)
- ND_PRINT((ndo, "hlen %u, proto 0x%04x, ", l2info->header_len, l2info->proto));
+ ND_PRINT("hlen %u, proto 0x%04x, ", l2info->header_len, l2info->proto);
return 1; /* everything went ok so far. continue parsing */
trunc:
- ND_PRINT((ndo, "[|juniper_hdr], length %u", h->len));
+ ND_PRINT("[|juniper_hdr], length %u", h->len);
return 0;
}
projects / tcpdump / blobdiff