The Tcpdump Group git mirrors - tcpdump/blobdiff

* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

*/

* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

*/

-#ifndef lint

-static const char rcsid[] =

- "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.106 2002-08-01 08:53:33 risso Exp $ (LBL)";

-#endif

-

+#define NETDISSECT_REWORKED

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <tcpdump-stdinc.h>

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <tcpdump-stdinc.h>

-#ifdef SEGSIZE

-#undef SEGSIZE

-#endif

-#include <arpa/tftp.h>

-

-#include <rpc/rpc.h>

-

-#include <stdio.h>

-#include <string.h>

-

#include "interface.h"

#include "addrtoname.h"

#include "interface.h"

#include "addrtoname.h"

+#include "extract.h"

#include "appletalk.h"

#include "udp.h"

#include "appletalk.h"

#include "udp.h"

#ifdef INET6

#include "ip6.h"

#endif

#ifdef INET6

#include "ip6.h"

#endif

+#include "ipproto.h"

+#include "rpc_auth.h"

+#include "rpc_msg.h"

#include "nameser.h"

#include "nfs.h"

#include "nameser.h"

#include "nfs.h"

-#include "bootp.h"

struct rtcphdr {

- u_int16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */

- u_int16_t rh_len; /* length of message (in words) */

- u_int32_t rh_ssrc; /* synchronization src id */

+ uint16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */

+ uint16_t rh_len; /* length of message (in words) */

+ uint32_t rh_ssrc; /* synchronization src id */

};

typedef struct {

};

typedef struct {

- u_int32_t upper; /* more significant 32 bits */

- u_int32_t lower; /* less significant 32 bits */

+ uint32_t upper; /* more significant 32 bits */

+ uint32_t lower; /* less significant 32 bits */

} ntp64;

/*

} ntp64;

/*

*/

struct rtcp_sr {

ntp64 sr_ntp; /* 64-bit ntp timestamp */

*/

struct rtcp_sr {

ntp64 sr_ntp; /* 64-bit ntp timestamp */

- u_int32_t sr_ts; /* reference media timestamp */

- u_int32_t sr_np; /* no. packets sent */

- u_int32_t sr_nb; /* no. bytes sent */

+ uint32_t sr_ts; /* reference media timestamp */

+ uint32_t sr_np; /* no. packets sent */

+ uint32_t sr_nb; /* no. bytes sent */

};

/*

};

/*

* Time stamps are middle 32-bits of ntp timestamp.

*/

struct rtcp_rr {

* Time stamps are middle 32-bits of ntp timestamp.

*/

struct rtcp_rr {

- u_int32_t rr_srcid; /* sender being reported */

- u_int32_t rr_nl; /* no. packets lost */

- u_int32_t rr_ls; /* extended last seq number received */

- u_int32_t rr_dv; /* jitter (delay variance) */

- u_int32_t rr_lsr; /* orig. ts from last rr from this src */

- u_int32_t rr_dlsr; /* time from recpt of last rr to xmit time */

+ uint32_t rr_srcid; /* sender being reported */

+ uint32_t rr_nl; /* no. packets lost */

+ uint32_t rr_ls; /* extended last seq number received */

+ uint32_t rr_dv; /* jitter (delay variance) */

+ uint32_t rr_lsr; /* orig. ts from last rr from this src */

+ uint32_t rr_dlsr; /* time from recpt of last rr to xmit time */

};

/*XXX*/

};

/*XXX*/

#define RTCP_PT_APP 204

static void

#define RTCP_PT_APP 204

static void

-vat_print(const void *hdr, u_int len, register const struct udphdr *up)

+vat_print(netdissect_options *ndo, const void *hdr, register const struct udphdr *up)

{

/* vat/vt audio */

{

/* vat/vt audio */

- u_int ts = *(u_int16_t *)hdr;

+ u_int ts = *(uint16_t *)hdr;

if ((ts & 0xf060) != 0) {

/* probably vt */

if ((ts & 0xf060) != 0) {

/* probably vt */

- (void)printf("udp/vt %u %d / %d",

- (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up)),

- ts & 0x3ff, ts >> 10);

+ ND_PRINT((ndo, "udp/vt %u %d / %d",

+ (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),

+ ts & 0x3ff, ts >> 10));

} else {

/* probably vat */

} else {

/* probably vat */

- u_int32_t i0 = (u_int32_t)ntohl(((u_int *)hdr)[0]);

- u_int32_t i1 = (u_int32_t)ntohl(((u_int *)hdr)[1]);

- printf("udp/vat %u c%d %u%s",

- (u_int32_t)(ntohs(up->uh_ulen) - sizeof(*up) - 8),

+ uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);

+ uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);

+ ND_PRINT((ndo, "udp/vat %u c%d %u%s",

+ (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),

i0 & 0xffff,

- i1, i0 & 0x800000? "*" : "");

+ i1, i0 & 0x800000? "*" : ""));

/* audio format */

if (i0 & 0x1f0000)

/* audio format */

if (i0 & 0x1f0000)

- printf(" f%d", (i0 >> 16) & 0x1f);

+ ND_PRINT((ndo, " f%d", (i0 >> 16) & 0x1f));

if (i0 & 0x3f000000)

- printf(" s%d", (i0 >> 24) & 0x3f);

+ ND_PRINT((ndo, " s%d", (i0 >> 24) & 0x3f));

}

static void

}

static void

-rtp_print(const void *hdr, u_int len, register const struct udphdr *up)

+rtp_print(netdissect_options *ndo, const void *hdr, u_int len,

+ register const struct udphdr *up)

{

/* rtp v1 or v2 */

u_int *ip = (u_int *)hdr;

u_int hasopt, hasext, contype, hasmarker;

{

/* rtp v1 or v2 */

u_int *ip = (u_int *)hdr;

u_int hasopt, hasext, contype, hasmarker;

- u_int32_t i0 = (u_int32_t)ntohl(((u_int *)hdr)[0]);

- u_int32_t i1 = (u_int32_t)ntohl(((u_int *)hdr)[1]);

- u_int dlen = ntohs(up->uh_ulen) - sizeof(*up) - 8;

+ uint32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);

+ uint32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);

+ u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;

const char * ptype;

ip += 2;

const char * ptype;

ip += 2;

ip += 1;

len -= 1;

}

ip += 1;

len -= 1;

}

- printf("udp/%s %d c%d %s%s %d %u",

+ ND_PRINT((ndo, "udp/%s %d c%d %s%s %d %u",

ptype,

dlen,

contype,

(hasopt || hasext)? "+" : "",

hasmarker? "*" : "",

i0 & 0xffff,

ptype,

dlen,

contype,

(hasopt || hasext)? "+" : "",

hasmarker? "*" : "",

i0 & 0xffff,

- i1);

- if (vflag) {

- printf(" %u", (u_int32_t)ntohl(((u_int *)hdr)[2]));

+ i1));

+ if (ndo->ndo_vflag) {

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(&((u_int *)hdr)[2])));

if (hasopt) {

u_int i2, optlen;

do {

i2 = ip[0];

optlen = (i2 >> 16) & 0xff;

if (optlen == 0 || optlen > len) {

if (hasopt) {

u_int i2, optlen;

do {

i2 = ip[0];

optlen = (i2 >> 16) & 0xff;

if (optlen == 0 || optlen > len) {

- printf(" !opt");

+ ND_PRINT((ndo, " !opt"));

return;

}

ip += optlen;

return;

}

ip += optlen;

i2 = ip[0];

extlen = (i2 & 0xffff) + 1;

if (extlen > len) {

i2 = ip[0];

extlen = (i2 & 0xffff) + 1;

if (extlen > len) {

- printf(" !ext");

+ ND_PRINT((ndo, " !ext"));

return;

}

ip += extlen;

}

if (contype == 0x1f) /*XXX H.261 */

return;

}

ip += extlen;

}

if (contype == 0x1f) /*XXX H.261 */

- printf(" 0x%04x", ip[0] >> 16);

+ ND_PRINT((ndo, " 0x%04x", ip[0] >> 16));

}

static const u_char *

}

static const u_char *

-rtcp_print(const u_char *hdr, const u_char *ep)

+rtcp_print(netdissect_options *ndo, const u_char *hdr, const u_char *ep)

{

/* rtp v2 control (rtcp) */

struct rtcp_rr *rr = 0;

struct rtcp_sr *sr;

struct rtcphdr *rh = (struct rtcphdr *)hdr;

u_int len;

{

/* rtp v2 control (rtcp) */

struct rtcp_rr *rr = 0;

struct rtcp_sr *sr;

struct rtcphdr *rh = (struct rtcphdr *)hdr;

u_int len;

- u_int16_t flags;

+ uint16_t flags;

int cnt;

double ts, dts;

if ((u_char *)(rh + 1) > ep) {

int cnt;

double ts, dts;

if ((u_char *)(rh + 1) > ep) {

- printf(" [|rtcp]");

+ ND_PRINT((ndo, " [|rtcp]"));

return (ep);

}

return (ep);

}

- len = (ntohs(rh->rh_len) + 1) * 4;

- flags = ntohs(rh->rh_flags);

+ len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;

+ flags = EXTRACT_16BITS(&rh->rh_flags);

cnt = (flags >> 8) & 0x1f;

switch (flags & 0xff) {

case RTCP_PT_SR:

sr = (struct rtcp_sr *)(rh + 1);

cnt = (flags >> 8) & 0x1f;

switch (flags & 0xff) {

case RTCP_PT_SR:

sr = (struct rtcp_sr *)(rh + 1);

- printf(" sr");

+ ND_PRINT((ndo, " sr"));

if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))

- printf(" [%d]", len);

- if (vflag)

- printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));

+ ND_PRINT((ndo, " [%d]", len));

+ if (ndo->ndo_vflag)

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));

if ((u_char *)(sr + 1) > ep) {

- printf(" [|rtcp]");

+ ND_PRINT((ndo, " [|rtcp]"));

return (ep);

}

return (ep);

}

- ts = (double)((u_int32_t)ntohl(sr->sr_ntp.upper)) +

- ((double)((u_int32_t)ntohl(sr->sr_ntp.lower)) /

+ ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +

+ ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /

4294967296.0);

- printf(" @%.2f %u %up %ub", ts, (u_int32_t)ntohl(sr->sr_ts),

- (u_int32_t)ntohl(sr->sr_np), (u_int32_t)ntohl(sr->sr_nb));

+ ND_PRINT((ndo, " @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),

+ EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb)));

rr = (struct rtcp_rr *)(sr + 1);

break;

case RTCP_PT_RR:

rr = (struct rtcp_rr *)(sr + 1);

break;

case RTCP_PT_RR:

- printf(" rr");

+ ND_PRINT((ndo, " rr"));

if (len != cnt * sizeof(*rr) + sizeof(*rh))

- printf(" [%d]", len);

+ ND_PRINT((ndo, " [%d]", len));

rr = (struct rtcp_rr *)(rh + 1);

- if (vflag)

- printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));

+ if (ndo->ndo_vflag)

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));

break;

case RTCP_PT_SDES:

break;

case RTCP_PT_SDES:

- printf(" sdes %d", len);

- if (vflag)

- printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));

+ ND_PRINT((ndo, " sdes %d", len));

+ if (ndo->ndo_vflag)

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));

cnt = 0;

break;

case RTCP_PT_BYE:

cnt = 0;

break;

case RTCP_PT_BYE:

- printf(" bye %d", len);

- if (vflag)

- printf(" %u", (u_int32_t)ntohl(rh->rh_ssrc));

+ ND_PRINT((ndo, " bye %d", len));

+ if (ndo->ndo_vflag)

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));

cnt = 0;

break;

default:

cnt = 0;

break;

default:

- printf(" type-0x%x %d", flags & 0xff, len);

+ ND_PRINT((ndo, " type-0x%x %d", flags & 0xff, len));

cnt = 0;

break;

}

if (cnt > 1)

cnt = 0;

break;

}

if (cnt > 1)

- printf(" c%d", cnt);

+ ND_PRINT((ndo, " c%d", cnt));

while (--cnt >= 0) {

if ((u_char *)(rr + 1) > ep) {

while (--cnt >= 0) {

if ((u_char *)(rr + 1) > ep) {

- printf(" [|rtcp]");

+ ND_PRINT((ndo, " [|rtcp]"));

return (ep);

}

return (ep);

}

- if (vflag)

- printf(" %u", (u_int32_t)ntohl(rr->rr_srcid));

- ts = (double)((u_int32_t)ntohl(rr->rr_lsr)) / 65536.;

- dts = (double)((u_int32_t)ntohl(rr->rr_dlsr)) / 65536.;

- printf(" %ul %us %uj @%.2f+%.2f",

- (u_int32_t)ntohl(rr->rr_nl) & 0x00ffffff,

- (u_int32_t)ntohl(rr->rr_ls),

- (u_int32_t)ntohl(rr->rr_dv), ts, dts);

+ if (ndo->ndo_vflag)

+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rr->rr_srcid)));

+ ts = (double)(EXTRACT_32BITS(&rr->rr_lsr)) / 65536.;

+ dts = (double)(EXTRACT_32BITS(&rr->rr_dlsr)) / 65536.;

+ ND_PRINT((ndo, " %ul %us %uj @%.2f+%.2f",

+ EXTRACT_32BITS(&rr->rr_nl) & 0x00ffffff,

+ EXTRACT_32BITS(&rr->rr_ls),

+ EXTRACT_32BITS(&rr->rr_dv), ts, dts));

}

return (hdr + len);

}

return (hdr + len);

}

-static int udp_cksum(register const struct ip *ip,

+static int udp_cksum(netdissect_options *ndo, 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(ndo, ip, (const uint8_t *)(void *)up, len, len,

+ IPPROTO_UDP);

}

#ifdef INET6

static int udp6_cksum(const struct ip6_hdr *ip6, const struct udphdr *up,

}

#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 = ntohs(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 uint8_t *)(void *)up, len, len,

+ IPPROTO_UDP);

}

#endif

}

#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 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(netdissect_options *ndo, const struct ip *ip, int sport, int dport)

{

#ifdef INET6

const struct ip6_hdr *ip6;

{

#ifdef INET6

const struct ip6_hdr *ip6;

if (ip6) {

if (ip6->ip6_nxt == IPPROTO_UDP) {

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) {

+ ND_PRINT((ndo, "%s > %s: ",

+ ip6addr_string(ndo, &ip6->ip6_src),

+ ip6addr_string(ndo, &ip6->ip6_dst)));

+ } else {

+ ND_PRINT((ndo, "%s.%s > %s.%s: ",

+ ip6addr_string(ndo, &ip6->ip6_src),

+ udpport_string(sport),

+ ip6addr_string(ndo, &ip6->ip6_dst),

+ udpport_string(dport)));

+ }

} else {

- (void)printf("%s > %s: ",

- udpport_string(sport), udpport_string(dport));

+ if (sport != -1) {

+ ND_PRINT((ndo, "%s > %s: ",

+ udpport_string(sport),

+ udpport_string(dport)));

+ }

}

} else

#endif /*INET6*/

{

if (ip->ip_p == IPPROTO_UDP) {

}

} 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) {

+ ND_PRINT((ndo, "%s > %s: ",

+ ipaddr_string(ndo, &ip->ip_src),

+ ipaddr_string(ndo, &ip->ip_dst)));

+ } else {

+ ND_PRINT((ndo, "%s.%s > %s.%s: ",

+ ipaddr_string(ndo, &ip->ip_src),

+ udpport_string(sport),

+ ipaddr_string(ndo, &ip->ip_dst),

+ udpport_string(dport)));

+ }

} else {

- (void)printf("%s > %s: ",

- udpport_string(sport), udpport_string(dport));

+ if (sport != -1) {

+ ND_PRINT((ndo, "%s > %s: ",

+ udpport_string(sport),

+ udpport_string(dport)));

+ }

}

void

}

void

-udp_print(register const u_char *bp, u_int length,

+udp_print(netdissect_options *ndo, register const u_char *bp, u_int length,

register const u_char *bp2, int fragmented)

{

register const struct udphdr *up;

register const struct ip *ip;

register const u_char *cp;

register const u_char *ep = bp + length;

register const u_char *bp2, int fragmented)

{

register const struct udphdr *up;

register const struct ip *ip;

register const u_char *cp;

register const u_char *ep = bp + length;

- u_int16_t sport, dport, ulen;

+ uint16_t sport, dport, ulen;

#ifdef INET6

register const struct ip6_hdr *ip6;

#endif

#ifdef INET6

register const struct ip6_hdr *ip6;

#endif

- if (ep > snapend)

- ep = snapend;

+ if (ep > ndo->ndo_snapend)

+ ep = ndo->ndo_snapend;

up = (struct udphdr *)bp;

ip = (struct ip *)bp2;

#ifdef INET6

up = (struct udphdr *)bp;

ip = (struct ip *)bp2;

#ifdef INET6

else

ip6 = NULL;

#endif /*INET6*/

else

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 (!ND_TTEST(up->uh_dport)) {

+ udpipaddr_print(ndo, ip, -1, -1);

+ ND_PRINT((ndo, "[|udp]"));

return;

}

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(ndo, ip, sport, dport);

+ ND_PRINT((ndo, "truncated-udp %d", length));

+ return;

+ }

+ ulen = EXTRACT_16BITS(&up->uh_ulen);

+ if (ulen < sizeof(struct udphdr)) {

+ udpipaddr_print(ndo, ip, sport, dport);

+ ND_PRINT((ndo, "truncated-udplength %d", ulen));

return;

}

return;

}

+ ulen -= sizeof(struct udphdr);

length -= sizeof(struct udphdr);

+ if (ulen < length)

+ length = ulen;

- sport = ntohs(up->uh_sport);

- dport = ntohs(up->uh_dport);

- ulen = ntohs(up->uh_ulen);

- if (ulen < 8) {

- (void)printf("%s > %s: truncated-udplength %d",

- ipaddr_string(&ip->ip_src),

- ipaddr_string(&ip->ip_dst),

- ulen);

+ cp = (u_char *)(up + 1);

+ if (cp > ndo->ndo_snapend) {

+ udpipaddr_print(ndo, ip, sport, dport);

+ ND_PRINT((ndo, "[|udp]"));

return;

}

return;

}

- if (packettype) {

- register struct rpc_msg *rp;

- enum msg_type direction;

- switch (packettype) {

+ if (ndo->ndo_packettype) {

+ register struct sunrpc_msg *rp;

+ enum sunrpc_msg_type direction;

+

+ switch (ndo->ndo_packettype) {

case PT_VAT:

- udpipaddr_print(ip, sport, dport);

- vat_print((void *)(up + 1), length, up);

+ udpipaddr_print(ndo, ip, sport, dport);

+ vat_print(ndo, (void *)(up + 1), up);

break;

case PT_WB:

break;

case PT_WB:

- udpipaddr_print(ip, sport, dport);

- wb_print((void *)(up + 1), length);

+ udpipaddr_print(ndo, ip, sport, dport);

+ wb_print(ndo, (void *)(up + 1), length);

break;

case PT_RPC:

break;

case PT_RPC:

- rp = (struct rpc_msg *)(up + 1);

- direction = (enum msg_type)ntohl(rp->rm_direction);

- if (direction == CALL)

- sunrpcrequest_print((u_char *)rp, length,

+ rp = (struct sunrpc_msg *)(up + 1);

+ direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);

+ if (direction == SUNRPC_CALL)

+ sunrpcrequest_print(ndo, (u_char *)rp, length,

(u_char *)ip);

else

(u_char *)ip);

else

- nfsreply_print((u_char *)rp, length,

+ nfsreply_print(ndo, (u_char *)rp, length,

(u_char *)ip); /*XXX*/

break;

case PT_RTP:

(u_char *)ip); /*XXX*/

break;

case PT_RTP:

- udpipaddr_print(ip, sport, dport);

- rtp_print((void *)(up + 1), length, up);

+ udpipaddr_print(ndo, ip, sport, dport);

+ rtp_print(ndo, (void *)(up + 1), length, up);

break;

case PT_RTCP:

break;

case PT_RTCP:

- udpipaddr_print(ip, sport, dport);

+ udpipaddr_print(ndo, ip, sport, dport);

while (cp < ep)

- cp = rtcp_print(cp, ep);

+ cp = rtcp_print(ndo, cp, ep);

break;

case PT_SNMP:

break;

case PT_SNMP:

- udpipaddr_print(ip, sport, dport);

- snmp_print((const u_char *)(up + 1), length);

+ udpipaddr_print(ndo, ip, sport, dport);

+ snmp_print(ndo, (const u_char *)(up + 1), length);

break;

case PT_CNFP:

break;

case PT_CNFP:

- udpipaddr_print(ip, sport, dport);

- cnfp_print(cp, length, (const u_char *)ip);

+ udpipaddr_print(ndo, ip, sport, dport);

+ cnfp_print(ndo, cp);

+ break;

+

+ case PT_TFTP:

+ udpipaddr_print(ndo, ip, sport, dport);

+ tftp_print(ndo, cp, length);

+ break;

+

+ case PT_AODV:

+ udpipaddr_print(ndo, ip, sport, dport);

+ aodv_print(ndo, (const u_char *)(up + 1), length,

+#ifdef INET6

+ ip6 != NULL);

+#else

+ 0);

+#endif

+ break;

+

+ case PT_RADIUS:

+ udpipaddr_print(ndo, ip, sport, dport);

+ radius_print(ndo, cp, length);

+ break;

+

+ case PT_VXLAN:

+ udpipaddr_print(ndo, ip, sport, dport);

+ vxlan_print(ndo, (const u_char *)(up + 1), length);

+ break;

+

+ case PT_PGM:

+ case PT_PGM_ZMTP1:

+ udpipaddr_print(ndo, ip, sport, dport);

+ pgm_print(ndo, cp, length, bp2);

+ break;

+ case PT_LMP:

+ udpipaddr_print(ndo, ip, sport, dport);

+ lmp_print(ndo, cp, length);

break;

}

return;

}

break;

}

return;

}

- if (!qflag) {

- register struct rpc_msg *rp;

- enum msg_type direction;

-

- rp = (struct rpc_msg *)(up + 1);

- if (TTEST(rp->rm_direction)) {

- direction = (enum msg_type)ntohl(rp->rm_direction);

- if (dport == NFS_PORT && direction == CALL) {

- nfsreq_print((u_char *)rp, length,

+ udpipaddr_print(ndo, ip, sport, dport);

+ if (!ndo->ndo_qflag) {

+ register struct sunrpc_msg *rp;

+ enum sunrpc_msg_type direction;

+

+ rp = (struct sunrpc_msg *)(up + 1);

+ if (ND_TTEST(rp->rm_direction)) {

+ direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);

+ if (dport == NFS_PORT && direction == SUNRPC_CALL) {

+ ND_PRINT((ndo, "NFS request xid %u ", EXTRACT_32BITS(&rp->rm_xid)));

+ nfsreq_print_noaddr(ndo, (u_char *)rp, length,

(u_char *)ip);

return;

}

(u_char *)ip);

return;

}

- if (sport == NFS_PORT && direction == REPLY) {

- nfsreply_print((u_char *)rp, length,

+ if (sport == NFS_PORT && direction == SUNRPC_REPLY) {

+ ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_32BITS(&rp->rm_xid)));

+ nfsreply_print_noaddr(ndo, (u_char *)rp, length,

(u_char *)ip);

return;

}

#ifdef notdef

(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;

}

#endif

}

sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);

return;

}

#endif

}

- if (TTEST(((struct LAP *)cp)->type) &&

+ if (ND_TTEST(((struct LAP *)cp)->type) &&

((struct LAP *)cp)->type == lapDDP &&

(atalk_port(sport) || atalk_port(dport))) {

((struct LAP *)cp)->type == lapDDP &&

(atalk_port(sport) || atalk_port(dport))) {

- if (vflag)

- fputs("kip ", stdout);

- llap_print(cp, length);

+ if (ndo->ndo_vflag)

+ ND_PRINT((ndo, "kip "));

+ llap_print(ndo, cp, length);

return;

}

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 (ndo->ndo_vflag && !ndo->ndo_Kflag && !fragmented) {

+ /* Check the checksum, if possible. */

+ uint16_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 && (ndo->ndo_vflag > 1)) {

+ udp_sum = EXTRACT_16BITS(&up->uh_sum);

+ if (udp_sum == 0) {

+ ND_PRINT((ndo, "[no cksum] "));

+ } else if (ND_TTEST2(cp[0], length)) {

+ sum = udp_cksum(ndo, ip, up, length + sizeof(struct udphdr));

+

+ if (sum != 0) {

+ ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",

+ udp_sum,

+ in_cksum_shouldbe(udp_sum, sum)));

+ } else

+ ND_PRINT((ndo, "[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 (ND_TTEST2(cp[0], length)) {

+ sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));

+ udp_sum = EXTRACT_16BITS(&up->uh_sum);

+

+ if (sum != 0) {

+ ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",

+ udp_sum,

+ in_cksum_shouldbe(udp_sum, sum)));

+ } else

+ ND_PRINT((ndo, "[udp sum ok] "));

+ }

}

- }

#endif

+ }

- if (!qflag) {

+ if (!ndo->ndo_qflag) {

#define ISPORT(p) (dport == (p) || sport == (p))

if (ISPORT(NAMESERVER_PORT))

#define ISPORT(p) (dport == (p) || sport == (p))

if (ISPORT(NAMESERVER_PORT))

- ns_print((const u_char *)(up + 1), length);

+ ns_print(ndo, (const u_char *)(up + 1), length, 0);

+ else if (ISPORT(MULTICASTDNS_PORT))

+ ns_print(ndo, (const u_char *)(up + 1), length, 1);

else if (ISPORT(TIMED_PORT))

- timed_print((const u_char *)(up + 1), length);

+ timed_print(ndo, (const u_char *)(up + 1));

else if (ISPORT(TFTP_PORT))

- tftp_print((const u_char *)(up + 1), length);

- else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))

- bootp_print((const u_char *)(up + 1), length,

- sport, dport);

+ tftp_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(BOOTPC_PORT) || ISPORT(BOOTPS_PORT))

+ bootp_print(ndo, (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);

+ rip_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(AODV_PORT))

+ aodv_print(ndo, (const u_char *)(up + 1), length,

+#ifdef INET6

+ ip6 != NULL);

+#else

+ 0);

+#endif

+ else if (ISPORT(ISAKMP_PORT))

+ isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);

+ else if (ISPORT(ISAKMP_PORT_NATT))

+ isakmp_rfc3948_print(ndo, (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(ndo, (const u_char *)(up + 1), length, bp2);

#endif

else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))

#endif

else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))

- snmp_print((const u_char *)(up + 1), length);

+ snmp_print(ndo, (const u_char *)(up + 1), length);

else if (ISPORT(NTP_PORT))

- ntp_print((const u_char *)(up + 1), length);

+ ntp_print(ndo, (const u_char *)(up + 1), length);

else if (ISPORT(KERBEROS_PORT) || ISPORT(KERBEROS_SEC_PORT))

- krb_print((const void *)(up + 1), length);

+ krb_print(ndo, (const void *)(up + 1));

else if (ISPORT(L2TP_PORT))

- l2tp_print((const u_char *)(up + 1), length);

+ l2tp_print(ndo, (const u_char *)(up + 1), length);

#ifdef TCPDUMP_DO_SMB

else if (ISPORT(NETBIOS_NS_PORT))

#ifdef TCPDUMP_DO_SMB

else if (ISPORT(NETBIOS_NS_PORT))

- nbt_udp137_print((const u_char *)(up + 1), length);

+ nbt_udp137_print(ndo, (const u_char *)(up + 1), length);

else if (ISPORT(NETBIOS_DGRAM_PORT))

- nbt_udp138_print((const u_char *)(up + 1), length);

+ nbt_udp138_print(ndo, (const u_char *)(up + 1), length);

#endif

- else if (dport == 3456)

- vat_print((const void *)(up + 1), length, up);

+ else if (dport == VAT_PORT)

+ vat_print(ndo, (const void *)(up + 1), up);

else if (ISPORT(ZEPHYR_SRV_PORT) || ISPORT(ZEPHYR_CLT_PORT))

- zephyr_print((const void *)(up + 1), length);

+ zephyr_print(ndo, (const void *)(up + 1), length);

/*

* Since there are 10 possible ports to check, I think

* a <> test would be more efficient

*/

else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||

(dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))

/*

* Since there are 10 possible ports to check, I think

* a <> test would be more efficient

*/

else if ((sport >= RX_PORT_LOW && sport <= RX_PORT_HIGH) ||

(dport >= RX_PORT_LOW && dport <= RX_PORT_HIGH))

- rx_print((const void *)(up + 1), length, sport, dport,

+ rx_print(ndo, (const void *)(up + 1), length, sport, dport,

(u_char *) ip);

#ifdef INET6

else if (ISPORT(RIPNG_PORT))

(u_char *) ip);

#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);

- }

+ ripng_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(DHCP6_SERV_PORT) || ISPORT(DHCP6_CLI_PORT))

+ dhcp6_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(AHCP_PORT))

+ ahcp_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(BABEL_PORT) || ISPORT(BABEL_PORT_OLD))

+ babel_print(ndo, (const u_char *)(up + 1), length);

#endif /*INET6*/

/*

* Kludge in test for whiteboard packets.

*/

#endif /*INET6*/

/*

* Kludge in test for whiteboard packets.

*/

- else if (dport == 4567)

- wb_print((const void *)(up + 1), length);

+ else if (dport == WB_PORT)

+ wb_print(ndo, (const void *)(up + 1), length);

else if (ISPORT(CISCO_AUTORP_PORT))

- cisco_autorp_print((const void *)(up + 1), length);

+ cisco_autorp_print(ndo, (const void *)(up + 1), length);

else if (ISPORT(RADIUS_PORT) ||

ISPORT(RADIUS_NEW_PORT) ||

ISPORT(RADIUS_ACCOUNTING_PORT) ||

else if (ISPORT(RADIUS_PORT) ||

ISPORT(RADIUS_NEW_PORT) ||

ISPORT(RADIUS_ACCOUNTING_PORT) ||

- ISPORT(RADIUS_NEW_ACCOUNTING_PORT) )

- radius_print((const u_char *)(up+1), length);

+ ISPORT(RADIUS_NEW_ACCOUNTING_PORT) ||

+ ISPORT(RADIUS_COA_PORT) )

+ radius_print(ndo, (const u_char *)(up+1), length);

else if (dport == HSRP_PORT)

- hsrp_print((const u_char *)(up + 1), length);

+ hsrp_print(ndo, (const u_char *)(up + 1), length);

else if (ISPORT(LWRES_PORT))

- lwres_print((const u_char *)(up + 1), length);

- else

- (void)printf("udp %u",

- (u_int32_t)(ulen - sizeof(*up)));

+ lwres_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(LDP_PORT))

+ ldp_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(OLSR_PORT))

+ olsr_print(ndo, (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(ndo, (const u_char *)(up + 1), length);

+ else if (dport == BFD_CONTROL_PORT ||

+ dport == BFD_ECHO_PORT )

+ bfd_print(ndo, (const u_char *)(up+1), length, dport);

+ else if (ISPORT(LMP_PORT))

+ lmp_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(VQP_PORT))

+ vqp_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(SFLOW_PORT))

+ sflow_print(ndo, (const u_char *)(up + 1), length);

+ else if (dport == LWAPP_CONTROL_PORT)

+ lwapp_control_print(ndo, (const u_char *)(up + 1), length, 1);

+ else if (sport == LWAPP_CONTROL_PORT)

+ lwapp_control_print(ndo, (const u_char *)(up + 1), length, 0);

+ else if (ISPORT(LWAPP_DATA_PORT))

+ lwapp_data_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(SIP_PORT))

+ sip_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(SYSLOG_PORT))

+ syslog_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(OTV_PORT))

+ otv_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(VXLAN_PORT))

+ vxlan_print(ndo, (const u_char *)(up + 1), length);

+ else if (ISPORT(GENEVE_PORT))

+ geneve_print(ndo, (const u_char *)(up + 1), length);

+ else {

+ if (ulen > length)

+ ND_PRINT((ndo, "UDP, bad length %u > %u",

+ ulen, length));

+ else

+ ND_PRINT((ndo, "UDP, length %u", ulen));

+ }

#undef ISPORT

- } else

- (void)printf("udp %u", (u_int32_t)(ulen - sizeof(*up)));

+ } else {

+ if (ulen > length)

+ ND_PRINT((ndo, "UDP, bad length %u > %u",

+ ulen, length));

+ else

+ ND_PRINT((ndo, "UDP, length %u", ulen));

+ }

}

+

+/*

+ * Local Variables:

+ * c-style: whitesmith

+ * c-basic-offset: 8

+ * End:

+ */

+