* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-#ifndef lint
-static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-udp.c,v 1.142 2007-08-08 17:20:58 hannes Exp $ (LBL)";
-#endif
-
+#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
-#ifdef SEGSIZE
-#undef SEGSIZE
-#endif
-
-#include <stdio.h>
-#include <string.h>
-
#include "interface.h"
#include "addrtoname.h"
#include "extract.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 {
- 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;
/*
*/
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 {
- 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*/
#define RTCP_PT_APP 204
static void
-vat_print(const void *hdr, register const struct udphdr *up)
+vat_print(netdissect_options *ndo, const void *hdr, register const struct udphdr *up)
{
/* vat/vt audio */
- u_int ts = *(u_int16_t *)hdr;
+ u_int ts = *(uint16_t *)hdr;
if ((ts & 0xf060) != 0) {
/* probably vt */
- (void)printf("udp/vt %u %d / %d",
- (u_int32_t)(EXTRACT_16BITS(&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 */
- u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
- u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
- printf("udp/vat %u c%d %u%s",
- (u_int32_t)(EXTRACT_16BITS(&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)
- 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
-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;
- u_int32_t i0 = EXTRACT_32BITS(&((u_int *)hdr)[0]);
- u_int32_t i1 = EXTRACT_32BITS(&((u_int *)hdr)[1]);
+ 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 += 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,
- i1);
- if (vflag) {
- printf(" %u", EXTRACT_32BITS(&((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) {
- printf(" !opt");
+ ND_PRINT((ndo, " !opt"));
return;
}
ip += optlen;
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 */
- printf(" 0x%04x", ip[0] >> 16);
+ ND_PRINT((ndo, " 0x%04x", ip[0] >> 16));
}
}
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;
- u_int16_t flags;
+ uint16_t flags;
int cnt;
double ts, dts;
if ((u_char *)(rh + 1) > ep) {
- printf(" [|rtcp]");
+ ND_PRINT((ndo, " [|rtcp]"));
return (ep);
}
len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
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", EXTRACT_32BITS(&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);
}
ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
4294967296.0);
- printf(" @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
- EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&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:
- 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", EXTRACT_32BITS(&rh->rh_ssrc));
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
break;
case RTCP_PT_SDES:
- printf(" sdes %d", len);
- if (vflag)
- printf(" %u", EXTRACT_32BITS(&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:
- printf(" bye %d", len);
- if (vflag)
- printf(" %u", EXTRACT_32BITS(&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:
- printf(" type-0x%x %d", flags & 0xff, len);
+ ND_PRINT((ndo, " type-0x%x %d", flags & 0xff, len));
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) {
- printf(" [|rtcp]");
+ ND_PRINT((ndo, " [|rtcp]"));
return (ep);
}
- if (vflag)
- printf(" %u", EXTRACT_32BITS(&rr->rr_srcid));
+ 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.;
- printf(" %ul %us %uj @%.2f+%.2f",
+ 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);
+ EXTRACT_32BITS(&rr->rr_dv), ts, dts));
}
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 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((u_int16_t)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,
u_int len)
{
- size_t i;
- 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;
-
- /* 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(len);
- 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 < (len & ~1); i += 2)
- sum += *sp++;
-
- if (len & 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
static void
-udpipaddr_print(const struct ip *ip, int sport, int dport)
+udpipaddr_print(netdissect_options *ndo, const struct ip *ip, int sport, int dport)
{
#ifdef INET6
const struct ip6_hdr *ip6;
if (ip6) {
if (ip6->ip6_nxt == IPPROTO_UDP) {
if (sport == -1) {
- (void)printf("%s > %s: ",
- ip6addr_string(&ip6->ip6_src),
- ip6addr_string(&ip6->ip6_dst));
+ ND_PRINT((ndo, "%s > %s: ",
+ ip6addr_string(ndo, &ip6->ip6_src),
+ ip6addr_string(ndo, &ip6->ip6_dst)));
} else {
- (void)printf("%s.%s > %s.%s: ",
- ip6addr_string(&ip6->ip6_src),
+ ND_PRINT((ndo, "%s.%s > %s.%s: ",
+ ip6addr_string(ndo, &ip6->ip6_src),
udpport_string(sport),
- ip6addr_string(&ip6->ip6_dst),
- udpport_string(dport));
+ ip6addr_string(ndo, &ip6->ip6_dst),
+ udpport_string(dport)));
}
} else {
if (sport != -1) {
- (void)printf("%s > %s: ",
+ ND_PRINT((ndo, "%s > %s: ",
udpport_string(sport),
- udpport_string(dport));
+ udpport_string(dport)));
}
}
} else
{
if (ip->ip_p == IPPROTO_UDP) {
if (sport == -1) {
- (void)printf("%s > %s: ",
- ipaddr_string(&ip->ip_src),
- ipaddr_string(&ip->ip_dst));
+ ND_PRINT((ndo, "%s > %s: ",
+ ipaddr_string(ndo, &ip->ip_src),
+ ipaddr_string(ndo, &ip->ip_dst)));
} else {
- (void)printf("%s.%s > %s.%s: ",
- ipaddr_string(&ip->ip_src),
+ ND_PRINT((ndo, "%s.%s > %s.%s: ",
+ ipaddr_string(ndo, &ip->ip_src),
udpport_string(sport),
- ipaddr_string(&ip->ip_dst),
- udpport_string(dport));
+ ipaddr_string(ndo, &ip->ip_dst),
+ udpport_string(dport)));
}
} else {
if (sport != -1) {
- (void)printf("%s > %s: ",
+ ND_PRINT((ndo, "%s > %s: ",
udpport_string(sport),
- udpport_string(dport));
+ udpport_string(dport)));
}
}
}
}
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;
- u_int16_t sport, dport, ulen;
+ uint16_t sport, dport, ulen;
#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
ip6 = NULL;
#endif /*INET6*/
cp = (u_char *)(up + 1);
- if (!TTEST(up->uh_dport)) {
- udpipaddr_print(ip, -1, -1);
- (void)printf("[|udp]");
+ if (!ND_TTEST(up->uh_dport)) {
+ udpipaddr_print(ndo, ip, -1, -1);
+ ND_PRINT((ndo, "[|udp]"));
return;
}
dport = EXTRACT_16BITS(&up->uh_dport);
if (length < sizeof(struct udphdr)) {
- udpipaddr_print(ip, sport, dport);
- (void)printf("truncated-udp %d", length);
+ udpipaddr_print(ndo, ip, sport, dport);
+ ND_PRINT((ndo, "truncated-udp %d", length));
return;
}
length -= sizeof(struct udphdr);
- if (cp > snapend) {
- udpipaddr_print(ip, sport, dport);
- (void)printf("[|udp]");
+ if (cp > ndo->ndo_snapend) {
+ udpipaddr_print(ndo, ip, sport, dport);
+ ND_PRINT((ndo, "[|udp]"));
return;
}
ulen = EXTRACT_16BITS(&up->uh_ulen);
if (ulen < 8) {
- udpipaddr_print(ip, sport, dport);
- (void)printf("truncated-udplength %d", ulen);
+ udpipaddr_print(ndo, ip, sport, dport);
+ ND_PRINT((ndo, "truncated-udplength %d", ulen));
return;
}
- if (packettype) {
+ if (ndo->ndo_packettype) {
register struct sunrpc_msg *rp;
enum sunrpc_msg_type direction;
- switch (packettype) {
+ switch (ndo->ndo_packettype) {
case PT_VAT:
- udpipaddr_print(ip, sport, dport);
- vat_print((void *)(up + 1), up);
+ udpipaddr_print(ndo, ip, sport, dport);
+ vat_print(ndo, (void *)(up + 1), up);
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:
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,
+ sunrpcrequest_print(ndo, (u_char *)rp, length,
(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:
- 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:
- 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:
- 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:
- udpipaddr_print(ip, sport, dport);
- cnfp_print(cp, (const u_char *)ip);
+ udpipaddr_print(ndo, ip, sport, dport);
+ cnfp_print(ndo, cp, (const u_char *)ip);
break;
case PT_TFTP:
- udpipaddr_print(ip, sport, dport);
- tftp_print(cp, length);
+ udpipaddr_print(ndo, ip, sport, dport);
+ tftp_print(ndo, cp, length);
break;
case PT_AODV:
- udpipaddr_print(ip, sport, dport);
- aodv_print((const u_char *)(up + 1), length,
+ 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;
}
- if (!qflag) {
+ 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 (TTEST(rp->rm_direction)) {
+ if (ND_TTEST(rp->rm_direction)) {
direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
if (dport == NFS_PORT && direction == SUNRPC_CALL) {
- nfsreq_print((u_char *)rp, length,
+ ND_PRINT((ndo, "NFS request xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
+ nfsreq_print_noaddr(ndo, (u_char *)rp, length,
(u_char *)ip);
return;
}
if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
- nfsreply_print((u_char *)rp, length,
+ ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
+ nfsreply_print_noaddr(ndo, (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))) {
- if (vflag)
- fputs("kip ", stdout);
- llap_print(cp, length);
+ if (ndo->ndo_vflag)
+ ND_PRINT((ndo, "kip "));
+ llap_print(ndo, cp, length);
return;
}
}
- udpipaddr_print(ip, sport, dport);
-
- if (IP_V(ip) == 4 && (vflag > 1) && !Kflag && !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 && !Kflag && !fragmented) {
- int sum = up->uh_sum;
- /* for IPv6, UDP checksum is mandatory */
- if (TTEST2(cp[0], length)) {
- sum = udp6_cksum(ip6, up, length + sizeof(struct udphdr));
- 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))
- ns_print((const u_char *)(up + 1), length, 0);
+ ns_print(ndo, (const u_char *)(up + 1), length, 0);
else if (ISPORT(MULTICASTDNS_PORT))
- ns_print((const u_char *)(up + 1), length, 1);
+ ns_print(ndo, (const u_char *)(up + 1), length, 1);
else if (ISPORT(TIMED_PORT))
- timed_print((const u_char *)(up + 1));
+ timed_print(ndo, (const u_char *)(up + 1));
else if (ISPORT(TFTP_PORT))
- tftp_print((const u_char *)(up + 1), length);
+ tftp_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
- bootp_print((const u_char *)(up + 1), length);
+ bootp_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(RIP_PORT))
- rip_print((const u_char *)(up + 1), length);
+ rip_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(AODV_PORT))
- aodv_print((const u_char *)(up + 1), length,
+ aodv_print(ndo, (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);
+ isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
else if (ISPORT(ISAKMP_PORT_NATT))
- isakmp_rfc3948_print(gndo, (const u_char *)(up + 1), length, bp2);
+ 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(gndo, (const u_char *)(up + 1), length, bp2);
+ isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
#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));
+ 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))
- 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), 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))
- 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))
- 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);
- }
+ 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.
*/
- 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) ||
ISPORT(RADIUS_NEW_ACCOUNTING_PORT) )
- radius_print((const u_char *)(up+1), length);
+ 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);
+ lwres_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(LDP_PORT))
- ldp_print((const u_char *)(up + 1), length);
+ ldp_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(OLSR_PORT))
- olsr_print((const u_char *)(up + 1), length,
+ 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((const u_char *)(up + 1), length);
+ lspping_print(ndo, (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);
+ bfd_print(ndo, (const u_char *)(up+1), length, dport);
else if (ISPORT(LMP_PORT))
- lmp_print((const u_char *)(up + 1), length);
+ lmp_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(VQP_PORT))
- vqp_print((const u_char *)(up + 1), length);
+ vqp_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(SFLOW_PORT))
- sflow_print((const u_char *)(up + 1), length);
+ sflow_print(ndo, (const u_char *)(up + 1), length);
else if (dport == LWAPP_CONTROL_PORT)
- lwapp_control_print((const u_char *)(up + 1), length, 1);
+ lwapp_control_print(ndo, (const u_char *)(up + 1), length, 1);
else if (sport == LWAPP_CONTROL_PORT)
- lwapp_control_print((const u_char *)(up + 1), length, 0);
+ lwapp_control_print(ndo, (const u_char *)(up + 1), length, 0);
else if (ISPORT(LWAPP_DATA_PORT))
- lwapp_data_print((const u_char *)(up + 1), length);
+ lwapp_data_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(SIP_PORT))
- sip_print((const u_char *)(up + 1), length);
+ sip_print(ndo, (const u_char *)(up + 1), length);
else if (ISPORT(SYSLOG_PORT))
- syslog_print((const u_char *)(up + 1), length);
+ 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
- (void)printf("UDP, length %u",
- (u_int32_t)(ulen - sizeof(*up)));
+ ND_PRINT((ndo, "UDP, length %u",
+ (uint32_t)(ulen - sizeof(*up))));
#undef ISPORT
} else
- (void)printf("UDP, length %u", (u_int32_t)(ulen - sizeof(*up)));
+ ND_PRINT((ndo, "UDP, length %u", (uint32_t)(ulen - sizeof(*up))));
}
projects / tcpdump / blobdiff