* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#ifndef lint
-static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.115 2003-05-01 18:02:13 guy Exp $ (LBL)";
-#endif
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef SEGSIZE
#undef SEGSIZE
#endif
-#include <arpa/tftp.h>
-
-#include <rpc/rpc.h>
#include <stdio.h>
#include <string.h>
#ifdef INET6
#include "ip6.h"
#endif
+#include "ipproto.h"
+#include "rpc_auth.h"
+#include "rpc_msg.h"
#include "nameser.h"
#include "nfs.h"
static int udp_cksum(register const struct ip *ip,
register const struct udphdr *up,
- register int len)
+ register u_int len)
{
- union phu {
- struct phdr {
- u_int32_t src;
- u_int32_t dst;
- u_char mbz;
- u_char proto;
- u_int16_t len;
- } ph;
- u_int16_t pa[6];
- } phu;
- register const u_int16_t *sp;
-
- /* pseudo-header.. */
- phu.ph.len = htons(len);
- phu.ph.mbz = 0;
- phu.ph.proto = IPPROTO_UDP;
- memcpy(&phu.ph.src, &ip->ip_src.s_addr, sizeof(u_int32_t));
- if (IP_HL(ip) == 5)
- memcpy(&phu.ph.dst, &ip->ip_dst.s_addr, sizeof(u_int32_t));
- else
- phu.ph.dst = ip_finddst(ip);
-
- sp = &phu.pa[0];
- return in_cksum((u_short *)up, len,
- sp[0]+sp[1]+sp[2]+sp[3]+sp[4]+sp[5]);
+ return (nextproto4_cksum(ip, (const u_int8_t *)(void *)up, len,
+ IPPROTO_UDP));
}
#ifdef INET6
static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,
- int len)
+ u_int len)
{
- int i, tlen;
- register const u_int16_t *sp;
- u_int32_t sum;
- union {
- struct {
- struct in6_addr ph_src;
- struct in6_addr ph_dst;
- u_int32_t ph_len;
- u_int8_t ph_zero[3];
- u_int8_t ph_nxt;
- } ph;
- u_int16_t pa[20];
- } phu;
-
- tlen = EXTRACT_16BITS(&ip6->ip6_plen) + sizeof(struct ip6_hdr) -
- ((const char *)up - (const char*)ip6);
-
- /* pseudo-header */
- memset(&phu, 0, sizeof(phu));
- phu.ph.ph_src = ip6->ip6_src;
- phu.ph.ph_dst = ip6->ip6_dst;
- phu.ph.ph_len = htonl(tlen);
- phu.ph.ph_nxt = IPPROTO_UDP;
-
- sum = 0;
- for (i = 0; i < sizeof(phu.pa) / sizeof(phu.pa[0]); i++)
- sum += phu.pa[i];
-
- sp = (const u_int16_t *)up;
-
- for (i = 0; i < (tlen & ~1); i += 2)
- sum += *sp++;
-
- if (tlen & 1)
- sum += htons((*(const u_int8_t *)sp) << 8);
-
- while (sum > 0xffff)
- sum = (sum & 0xffff) + (sum >> 16);
- sum = ~sum & 0xffff;
-
- return (sum);
+ return (nextproto6_cksum(ip6, (const u_int8_t *)(void *)up, len,
+ IPPROTO_UDP));
}
#endif
-
-/* XXX probably should use getservbyname() and cache answers */
-#define TFTP_PORT 69 /*XXX*/
-#define KERBEROS_PORT 88 /*XXX*/
-#define SUNRPC_PORT 111 /*XXX*/
-#define SNMP_PORT 161 /*XXX*/
-#define NTP_PORT 123 /*XXX*/
-#define SNMPTRAP_PORT 162 /*XXX*/
-#define ISAKMP_PORT 500 /*XXX*/
-#define TIMED_PORT 525 /*XXX*/
-#define RIP_PORT 520 /*XXX*/
-#define LDP_PORT 646
-#define KERBEROS_SEC_PORT 750 /*XXX*/
-#define L2TP_PORT 1701 /*XXX*/
-#define ISAKMP_PORT_USER1 7500 /*XXX - nonstandard*/
-#define ISAKMP_PORT_USER2 8500 /*XXX - nonstandard*/
-#define RX_PORT_LOW 7000 /*XXX*/
-#define RX_PORT_HIGH 7009 /*XXX*/
-#define NETBIOS_NS_PORT 137
-#define NETBIOS_DGRAM_PORT 138
-#define CISCO_AUTORP_PORT 496 /*XXX*/
-#define RADIUS_PORT 1645
-#define RADIUS_NEW_PORT 1812
-#define RADIUS_ACCOUNTING_PORT 1646
-#define RADIUS_NEW_ACCOUNTING_PORT 1813
-#define HSRP_PORT 1985 /*XXX*/
-#define LWRES_PORT 921
-#define ZEPHYR_SRV_PORT 2103
-#define ZEPHYR_CLT_PORT 2104
-
-#ifdef INET6
-#define RIPNG_PORT 521 /*XXX*/
-#define DHCP6_SERV_PORT 546 /*XXX*/
-#define DHCP6_CLI_PORT 547 /*XXX*/
-#endif
-
static void
-udpipaddr_print(const struct ip *ip, u_int16_t sport, u_int16_t dport)
+udpipaddr_print(const struct ip *ip, int sport, int dport)
{
#ifdef INET6
const struct ip6_hdr *ip6;
if (ip6) {
if (ip6->ip6_nxt == IPPROTO_UDP) {
- (void)printf("%s.%s > %s.%s: ",
- ip6addr_string(&ip6->ip6_src),
- udpport_string(sport),
- ip6addr_string(&ip6->ip6_dst),
- udpport_string(dport));
+ if (sport == -1) {
+ (void)printf("%s > %s: ",
+ ip6addr_string(&ip6->ip6_src),
+ ip6addr_string(&ip6->ip6_dst));
+ } else {
+ (void)printf("%s.%s > %s.%s: ",
+ ip6addr_string(&ip6->ip6_src),
+ udpport_string(sport),
+ ip6addr_string(&ip6->ip6_dst),
+ udpport_string(dport));
+ }
} else {
- (void)printf("%s > %s: ",
- udpport_string(sport), udpport_string(dport));
+ if (sport != -1) {
+ (void)printf("%s > %s: ",
+ udpport_string(sport),
+ udpport_string(dport));
+ }
}
} else
#endif /*INET6*/
{
if (ip->ip_p == IPPROTO_UDP) {
- (void)printf("%s.%s > %s.%s: ",
- ipaddr_string(&ip->ip_src),
- udpport_string(sport),
- ipaddr_string(&ip->ip_dst),
- udpport_string(dport));
+ if (sport == -1) {
+ (void)printf("%s > %s: ",
+ ipaddr_string(&ip->ip_src),
+ ipaddr_string(&ip->ip_dst));
+ } else {
+ (void)printf("%s.%s > %s.%s: ",
+ ipaddr_string(&ip->ip_src),
+ udpport_string(sport),
+ ipaddr_string(&ip->ip_dst),
+ udpport_string(dport));
+ }
} else {
- (void)printf("%s > %s: ",
- udpport_string(sport), udpport_string(dport));
+ if (sport != -1) {
+ (void)printf("%s > %s: ",
+ udpport_string(sport),
+ udpport_string(dport));
+ }
}
}
}
ip6 = NULL;
#endif /*INET6*/
cp = (u_char *)(up + 1);
- if (cp > snapend) {
- (void)printf("%s > %s: [|udp]",
- ipaddr_string(&ip->ip_src), ipaddr_string(&ip->ip_dst));
+ if (!TTEST(up->uh_dport)) {
+ udpipaddr_print(ip, -1, -1);
+ (void)printf("[|udp]");
return;
}
+
+ sport = EXTRACT_16BITS(&up->uh_sport);
+ dport = EXTRACT_16BITS(&up->uh_dport);
+
if (length < sizeof(struct udphdr)) {
- (void)printf("%s > %s: truncated-udp %d",
- ipaddr_string(&ip->ip_src), ipaddr_string(&ip->ip_dst),
- length);
+ udpipaddr_print(ip, sport, dport);
+ (void)printf("truncated-udp %d", length);
return;
}
length -= sizeof(struct udphdr);
- sport = EXTRACT_16BITS(&up->uh_sport);
- dport = EXTRACT_16BITS(&up->uh_dport);
+ if (cp > snapend) {
+ udpipaddr_print(ip, sport, dport);
+ (void)printf("[|udp]");
+ return;
+ }
+
ulen = EXTRACT_16BITS(&up->uh_ulen);
if (ulen < 8) {
- (void)printf("%s > %s: truncated-udplength %d",
- ipaddr_string(&ip->ip_src),
- ipaddr_string(&ip->ip_dst),
- ulen);
+ udpipaddr_print(ip, sport, dport);
+ (void)printf("truncated-udplength %d", ulen);
return;
}
if (packettype) {
- register struct rpc_msg *rp;
- enum msg_type direction;
+ register struct sunrpc_msg *rp;
+ enum sunrpc_msg_type direction;
switch (packettype) {
break;
case PT_RPC:
- rp = (struct rpc_msg *)(up + 1);
- direction = (enum msg_type)EXTRACT_32BITS(&rp->rm_direction);
- if (direction == CALL)
+ rp = (struct sunrpc_msg *)(up + 1);
+ direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
+ if (direction == SUNRPC_CALL)
sunrpcrequest_print((u_char *)rp, length,
(u_char *)ip);
else
udpipaddr_print(ip, sport, dport);
cnfp_print(cp, (const u_char *)ip);
break;
+
+ case PT_TFTP:
+ udpipaddr_print(ip, sport, dport);
+ tftp_print(cp, length);
+ break;
+
+ case PT_AODV:
+ udpipaddr_print(ip, sport, dport);
+ aodv_print((const u_char *)(up + 1), length,
+#ifdef INET6
+ ip6 != NULL);
+#else
+ 0);
+#endif
+ break;
+
+ case PT_RADIUS:
+ udpipaddr_print(ip, sport, dport);
+ radius_print(cp, length);
+ break;
+
+ case PT_VXLAN:
+ udpipaddr_print(ip, sport, dport);
+ vxlan_print((const u_char *)(up + 1), length);
+ break;
+
+ case PT_PGM:
+ case PT_PGM_ZMTP1:
+ udpipaddr_print(ip, sport, dport);
+ pgm_print(cp, length, bp2);
+ break;
+ case PT_LMP:
+ udpipaddr_print(ip, sport, dport);
+ lmp_print(cp, length);
+ break;
}
return;
}
if (!qflag) {
- register struct rpc_msg *rp;
- enum msg_type direction;
+ register struct sunrpc_msg *rp;
+ enum sunrpc_msg_type direction;
- rp = (struct rpc_msg *)(up + 1);
+ rp = (struct sunrpc_msg *)(up + 1);
if (TTEST(rp->rm_direction)) {
- direction = (enum msg_type)EXTRACT_32BITS(&rp->rm_direction);
- if (dport == NFS_PORT && direction == CALL) {
+ direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
+ if (dport == NFS_PORT && direction == SUNRPC_CALL) {
nfsreq_print((u_char *)rp, length,
(u_char *)ip);
return;
}
- if (sport == NFS_PORT && direction == REPLY) {
+ if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
nfsreply_print((u_char *)rp, length,
(u_char *)ip);
return;
}
#ifdef notdef
- if (dport == SUNRPC_PORT && direction == CALL) {
+ if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
return;
}
}
udpipaddr_print(ip, sport, dport);
- if (IP_V(ip) == 4 && vflag && !fragmented) {
- int sum = up->uh_sum;
- if (sum == 0) {
- (void)printf("[no cksum] ");
- } else if (TTEST2(cp[0], length)) {
- sum = udp_cksum(ip, up, length + sizeof(struct udphdr));
- if (sum != 0)
- (void)printf("[bad udp cksum %x!] ", sum);
- else
- (void)printf("[udp sum ok] ");
+ if (vflag && !Kflag && !fragmented) {
+ /* Check the checksum, if possible. */
+ u_int16_t sum, udp_sum;
+
+ /*
+ * XXX - do this even if vflag == 1?
+ * TCP does, and we do so for UDP-over-IPv6.
+ */
+ if (IP_V(ip) == 4 && (vflag > 1)) {
+ udp_sum = EXTRACT_16BITS(&up->uh_sum);
+ if (udp_sum == 0) {
+ (void)printf("[no cksum] ");
+ } else if (TTEST2(cp[0], length)) {
+ sum = udp_cksum(ip, up, length + sizeof(struct udphdr));
+
+ if (sum != 0) {
+ (void)printf("[bad udp cksum 0x%04x -> 0x%04x!] ",
+ udp_sum,
+ in_cksum_shouldbe(udp_sum, sum));
+ } else
+ (void)printf("[udp sum ok] ");
+ }
}
- }
#ifdef INET6
- if (IP_V(ip) == 6 && ip6->ip6_plen && vflag && !fragmented) {
- int sum = up->uh_sum;
- /* for IPv6, UDP checksum is mandatory */
- if (TTEST2(cp[0], length)) {
- sum = udp6_cksum(ip6, up, length);
- if (sum != 0)
- (void)printf("[bad udp cksum %x!] ", sum);
- else
- (void)printf("[udp sum ok] ");
+ else if (IP_V(ip) == 6 && ip6->ip6_plen) {
+ /* for IPv6, UDP checksum is mandatory */
+ if (TTEST2(cp[0], length)) {
+ sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));
+ udp_sum = EXTRACT_16BITS(&up->uh_sum);
+
+ if (sum != 0) {
+ (void)printf("[bad udp cksum 0x%04x -> 0x%04x!] ",
+ udp_sum,
+ in_cksum_shouldbe(udp_sum, sum));
+ } else
+ (void)printf("[udp sum ok] ");
+ }
}
- }
#endif
+ }
if (!qflag) {
#define ISPORT(p) (dport == (p) || sport == (p))
- if (ISPORT(NAMESERVER_PORT) || ISPORT(MULTICASTDNS_PORT))
- ns_print((const u_char *)(up + 1), length);
+ if (ISPORT(NAMESERVER_PORT))
+ ns_print((const u_char *)(up + 1), length, 0);
+ else if (ISPORT(MULTICASTDNS_PORT))
+ ns_print((const u_char *)(up + 1), length, 1);
else if (ISPORT(TIMED_PORT))
timed_print((const u_char *)(up + 1));
else if (ISPORT(TFTP_PORT))
bootp_print((const u_char *)(up + 1), length);
else if (ISPORT(RIP_PORT))
rip_print((const u_char *)(up + 1), length);
- else if (ISPORT(ISAKMP_PORT))
- isakmp_print((const u_char *)(up + 1), length, bp2);
+ else if (ISPORT(AODV_PORT))
+ aodv_print((const u_char *)(up + 1), length,
+#ifdef INET6
+ ip6 != NULL);
+#else
+ 0);
+#endif
+ else if (ISPORT(ISAKMP_PORT))
+ isakmp_print(gndo, (const u_char *)(up + 1), length, bp2);
+ else if (ISPORT(ISAKMP_PORT_NATT))
+ isakmp_rfc3948_print(gndo, (const u_char *)(up + 1), length, bp2);
#if 1 /*???*/
- else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
- isakmp_print((const u_char *)(up + 1), length, bp2);
+ else if (ISPORT(ISAKMP_PORT_USER1) || ISPORT(ISAKMP_PORT_USER2))
+ isakmp_print(gndo, (const u_char *)(up + 1), length, bp2);
#endif
else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
snmp_print((const u_char *)(up + 1), length);
else if (ISPORT(NETBIOS_DGRAM_PORT))
nbt_udp138_print((const u_char *)(up + 1), length);
#endif
- else if (dport == 3456)
+ else if (dport == VAT_PORT)
vat_print((const void *)(up + 1), up);
else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT))
zephyr_print((const void *)(up + 1), length);
#ifdef INET6
else if (ISPORT(RIPNG_PORT))
ripng_print((const u_char *)(up + 1), length);
- else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT)) {
- dhcp6_print((const u_char *)(up + 1), length,
- sport, dport);
- }
+ else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT))
+ dhcp6_print((const u_char *)(up + 1), length);
+ else if (ISPORT(AHCP_PORT))
+ ahcp_print((const u_char *)(up + 1), length);
+ else if (ISPORT(BABEL_PORT) || ISPORT(BABEL_PORT_OLD))
+ babel_print((const u_char *)(up + 1), length);
#endif /*INET6*/
/*
* Kludge in test for whiteboard packets.
*/
- else if (dport == 4567)
+ else if (dport == WB_PORT)
wb_print((const void *)(up + 1), length);
else if (ISPORT(CISCO_AUTORP_PORT))
cisco_autorp_print((const void *)(up + 1), length);
hsrp_print((const u_char *)(up + 1), length);
else if (ISPORT(LWRES_PORT))
lwres_print((const u_char *)(up + 1), length);
- else if (ISPORT(LDP_PORT))
+ else if (ISPORT(LDP_PORT))
ldp_print((const u_char *)(up + 1), length);
+ else if (ISPORT(OLSR_PORT))
+ olsr_print((const u_char *)(up + 1), length,
+#if INET6
+ (IP_V(ip) == 6) ? 1 : 0);
+#else
+ 0);
+#endif
+ else if (ISPORT(MPLS_LSP_PING_PORT))
+ lspping_print((const u_char *)(up + 1), length);
+ else if (dport == BFD_CONTROL_PORT ||
+ dport == BFD_ECHO_PORT )
+ bfd_print((const u_char *)(up+1), length, dport);
+ else if (ISPORT(LMP_PORT))
+ lmp_print((const u_char *)(up + 1), length);
+ else if (ISPORT(VQP_PORT))
+ vqp_print((const u_char *)(up + 1), length);
+ else if (ISPORT(SFLOW_PORT))
+ sflow_print((const u_char *)(up + 1), length);
+ else if (dport == LWAPP_CONTROL_PORT)
+ lwapp_control_print((const u_char *)(up + 1), length, 1);
+ else if (sport == LWAPP_CONTROL_PORT)
+ lwapp_control_print((const u_char *)(up + 1), length, 0);
+ else if (ISPORT(LWAPP_DATA_PORT))
+ lwapp_data_print((const u_char *)(up + 1), length);
+ else if (ISPORT(SIP_PORT))
+ sip_print((const u_char *)(up + 1), length);
+ else if (ISPORT(SYSLOG_PORT))
+ syslog_print((const u_char *)(up + 1), length);
+ else if (ISPORT(OTV_PORT))
+ otv_print((const u_char *)(up + 1), length);
+ else if (ISPORT(VXLAN_PORT))
+ vxlan_print((const u_char *)(up + 1), length);
else
- (void)printf("udp %u",
+ (void)printf("UDP, length %u",
(u_int32_t)(ulen - sizeof(*up)));
#undef ISPORT
} else
- (void)printf("udp %u", (u_int32_t)(ulen - sizeof(*up)));
+ (void)printf("UDP, length %u", (u_int32_t)(ulen - sizeof(*up)));
}
+
+
+/*
+ * Local Variables:
+ * c-style: whitesmith
+ * c-basic-offset: 8
+ * End:
+ */
+
projects / tcpdump / blobdiff