#include "nfs.h"
+static const char vat_tstr[] = " [|vat]";
+static const char rtp_tstr[] = " [|rtp]";
+static const char rtcp_tstr[] = " [|rtcp]";
+static const char udp_tstr[] = " [|udp]";
+
struct rtcphdr {
- 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 */
+ nd_uint16_t rh_flags; /* T:2 P:1 CNT:5 PT:8 */
+ nd_uint16_t rh_len; /* length of message (in words) */
+ nd_uint32_t rh_ssrc; /* synchronization src id */
};
typedef struct {
- uint32_t upper; /* more significant 32 bits */
- uint32_t lower; /* less significant 32 bits */
+ nd_uint32_t upper; /* more significant 32 bits */
+ nd_uint32_t lower; /* less significant 32 bits */
} ntp64;
/*
*/
struct rtcp_sr {
ntp64 sr_ntp; /* 64-bit ntp timestamp */
- uint32_t sr_ts; /* reference media timestamp */
- uint32_t sr_np; /* no. packets sent */
- uint32_t sr_nb; /* no. bytes sent */
+ nd_uint32_t sr_ts; /* reference media timestamp */
+ nd_uint32_t sr_np; /* no. packets sent */
+ nd_uint32_t sr_nb; /* no. bytes sent */
};
/*
* Time stamps are middle 32-bits of ntp timestamp.
*/
struct rtcp_rr {
- 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 */
+ nd_uint32_t rr_srcid; /* sender being reported */
+ nd_uint32_t rr_nl; /* no. packets lost */
+ nd_uint32_t rr_ls; /* extended last seq number received */
+ nd_uint32_t rr_dv; /* jitter (delay variance) */
+ nd_uint32_t rr_lsr; /* orig. ts from last rr from this src */
+ nd_uint32_t rr_dlsr; /* time from recpt of last rr to xmit time */
};
/*XXX*/
vat_print(netdissect_options *ndo, const void *hdr, register const struct udphdr *up)
{
/* vat/vt audio */
- u_int ts = EXTRACT_16BITS(hdr);
+ u_int ts;
+
+ ND_TCHECK_2((const u_int *)hdr);
+ ts = EXTRACT_BE_U_2(hdr);
if ((ts & 0xf060) != 0) {
/* probably vt */
+ ND_TCHECK_2(up->uh_ulen);
ND_PRINT((ndo, "udp/vt %u %d / %d",
- (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up)),
+ (uint32_t)(EXTRACT_BE_U_2(up->uh_ulen) - sizeof(*up)),
ts & 0x3ff, ts >> 10));
} else {
/* probably vat */
- uint32_t i0 = EXTRACT_32BITS(&((const u_int *)hdr)[0]);
- uint32_t i1 = EXTRACT_32BITS(&((const u_int *)hdr)[1]);
+ uint32_t i0, i1;
+
+ ND_TCHECK_4(&((const u_int *)hdr)[0]);
+ i0 = EXTRACT_BE_U_4(&((const u_int *)hdr)[0]);
+ ND_TCHECK_4(&((const u_int *)hdr)[1]);
+ i1 = EXTRACT_BE_U_4(&((const u_int *)hdr)[1]);
+ ND_TCHECK_2(up->uh_ulen);
ND_PRINT((ndo, "udp/vat %u c%d %u%s",
- (uint32_t)(EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8),
+ (uint32_t)(EXTRACT_BE_U_2(up->uh_ulen) - sizeof(*up) - 8),
i0 & 0xffff,
i1, i0 & 0x800000? "*" : ""));
/* audio format */
if (i0 & 0x3f000000)
ND_PRINT((ndo, " s%d", (i0 >> 24) & 0x3f));
}
+
+trunc:
+ ND_PRINT((ndo, "%s", vat_tstr));
}
static void
{
/* rtp v1 or v2 */
const u_int *ip = (const u_int *)hdr;
- u_int hasopt, hasext, contype, hasmarker;
- uint32_t i0 = EXTRACT_32BITS(&((const u_int *)hdr)[0]);
- uint32_t i1 = EXTRACT_32BITS(&((const u_int *)hdr)[1]);
- u_int dlen = EXTRACT_16BITS(&up->uh_ulen) - sizeof(*up) - 8;
+ u_int hasopt, hasext, contype, hasmarker, dlen;
+ uint32_t i0, i1;
const char * ptype;
+ ND_TCHECK_4(&((const u_int *)hdr)[0]);
+ i0 = EXTRACT_BE_U_4(&((const u_int *)hdr)[0]);
+ ND_TCHECK_4(&((const u_int *)hdr)[1]);
+ i1 = EXTRACT_BE_U_4(&((const u_int *)hdr)[1]);
+ ND_TCHECK_2(up->uh_ulen);
+ dlen = EXTRACT_BE_U_2(up->uh_ulen) - sizeof(*up) - 8;
ip += 2;
len >>= 2;
len -= 2;
i0 & 0xffff,
i1));
if (ndo->ndo_vflag) {
- ND_PRINT((ndo, " %u", EXTRACT_32BITS(&((const u_int *)hdr)[2])));
+ ND_TCHECK_4(&((const u_int *)hdr)[2]);
+ ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(&((const u_int *)hdr)[2])));
if (hasopt) {
u_int i2, optlen;
do {
- i2 = EXTRACT_32BITS(ip);
+ ND_TCHECK_4(ip);
+ i2 = EXTRACT_BE_U_4(ip);
optlen = (i2 >> 16) & 0xff;
if (optlen == 0 || optlen > len) {
ND_PRINT((ndo, " !opt"));
}
if (hasext) {
u_int i2, extlen;
- i2 = EXTRACT_32BITS(ip);
+ ND_TCHECK_4(ip);
+ i2 = EXTRACT_BE_U_4(ip);
extlen = (i2 & 0xffff) + 1;
if (extlen > len) {
ND_PRINT((ndo, " !ext"));
}
ip += extlen;
}
+ ND_TCHECK_4(ip);
if (contype == 0x1f) /*XXX H.261 */
- ND_PRINT((ndo, " 0x%04x", EXTRACT_32BITS(ip) >> 16));
+ ND_PRINT((ndo, " 0x%04x", EXTRACT_BE_U_4(ip) >> 16));
}
+
+trunc:
+ ND_PRINT((ndo, "%s", rtp_tstr));
}
static const u_char *
uint16_t flags;
int cnt;
double ts, dts;
- if ((const u_char *)(rh + 1) > ep) {
- ND_PRINT((ndo, " [|rtcp]"));
- return (ep);
- }
- len = (EXTRACT_16BITS(&rh->rh_len) + 1) * 4;
- flags = EXTRACT_16BITS(&rh->rh_flags);
+ if ((const u_char *)(rh + 1) > ep)
+ goto trunc;
+ ND_TCHECK(*rh);
+ len = (EXTRACT_BE_U_2(rh->rh_len) + 1) * 4;
+ flags = EXTRACT_BE_U_2(rh->rh_flags);
cnt = (flags >> 8) & 0x1f;
switch (flags & 0xff) {
case RTCP_PT_SR:
if (len != cnt * sizeof(*rr) + sizeof(*sr) + sizeof(*rh))
ND_PRINT((ndo, " [%d]", len));
if (ndo->ndo_vflag)
- ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
- if ((const u_char *)(sr + 1) > ep) {
- ND_PRINT((ndo, " [|rtcp]"));
- return (ep);
- }
- ts = (double)(EXTRACT_32BITS(&sr->sr_ntp.upper)) +
- ((double)(EXTRACT_32BITS(&sr->sr_ntp.lower)) /
- 4294967296.0);
- ND_PRINT((ndo, " @%.2f %u %up %ub", ts, EXTRACT_32BITS(&sr->sr_ts),
- EXTRACT_32BITS(&sr->sr_np), EXTRACT_32BITS(&sr->sr_nb)));
+ ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(rh->rh_ssrc)));
+ if ((const u_char *)(sr + 1) > ep)
+ goto trunc;
+ ND_TCHECK(*sr);
+ ts = (double)(EXTRACT_BE_U_4(sr->sr_ntp.upper)) +
+ ((double)(EXTRACT_BE_U_4(sr->sr_ntp.lower)) /
+ 4294967296.0);
+ ND_PRINT((ndo, " @%.2f %u %up %ub", ts, EXTRACT_BE_U_4(sr->sr_ts),
+ EXTRACT_BE_U_4(sr->sr_np), EXTRACT_BE_U_4(sr->sr_nb)));
rr = (const struct rtcp_rr *)(sr + 1);
break;
case RTCP_PT_RR:
ND_PRINT((ndo, " [%d]", len));
rr = (const struct rtcp_rr *)(rh + 1);
if (ndo->ndo_vflag)
- ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
+ ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(rh->rh_ssrc)));
break;
case RTCP_PT_SDES:
ND_PRINT((ndo, " sdes %d", len));
if (ndo->ndo_vflag)
- ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
+ ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(rh->rh_ssrc)));
cnt = 0;
break;
case RTCP_PT_BYE:
ND_PRINT((ndo, " bye %d", len));
if (ndo->ndo_vflag)
- ND_PRINT((ndo, " %u", EXTRACT_32BITS(&rh->rh_ssrc)));
+ ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(rh->rh_ssrc)));
cnt = 0;
break;
default:
if (cnt > 1)
ND_PRINT((ndo, " c%d", cnt));
while (--cnt >= 0) {
- if ((const u_char *)(rr + 1) > ep) {
- ND_PRINT((ndo, " [|rtcp]"));
- return (ep);
- }
+ if ((const u_char *)(rr + 1) > ep)
+ goto trunc;
+ ND_TCHECK(*rr);
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, " %u", EXTRACT_BE_U_4(rr->rr_srcid)));
+ ts = (double)(EXTRACT_BE_U_4(rr->rr_lsr)) / 65536.;
+ dts = (double)(EXTRACT_BE_U_4(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));
+ EXTRACT_BE_U_4(rr->rr_nl) & 0x00ffffff,
+ EXTRACT_BE_U_4(rr->rr_ls),
+ EXTRACT_BE_U_4(rr->rr_dv), ts, dts));
}
return (hdr + len);
+
+trunc:
+ ND_PRINT((ndo, "%s", rtcp_tstr));
+ return ep;
}
static int udp_cksum(netdissect_options *ndo, register const struct ip *ip,
}
}
} else {
- if (ip->ip_p == IPPROTO_UDP) {
+ if (EXTRACT_U_1(ip->ip_p) == IPPROTO_UDP) {
if (sport == -1) {
ND_PRINT((ndo, "%s > %s: ",
ipaddr_string(ndo, &ip->ip_src),
ip6 = NULL;
if (!ND_TTEST(up->uh_dport)) {
udpipaddr_print(ndo, ip, -1, -1);
- ND_PRINT((ndo, "[|udp]"));
- return;
+ goto trunc;
}
- sport = EXTRACT_16BITS(&up->uh_sport);
- dport = EXTRACT_16BITS(&up->uh_dport);
+ sport = EXTRACT_BE_U_2(up->uh_sport);
+ dport = EXTRACT_BE_U_2(up->uh_dport);
if (length < sizeof(struct udphdr)) {
udpipaddr_print(ndo, ip, sport, dport);
ND_PRINT((ndo, "truncated-udp %d", length));
return;
}
- ulen = EXTRACT_16BITS(&up->uh_ulen);
+ if (!ND_TTEST(up->uh_ulen)) {
+ udpipaddr_print(ndo, ip, sport, dport);
+ goto trunc;
+ }
+ ulen = EXTRACT_BE_U_2(up->uh_ulen);
if (ulen < sizeof(struct udphdr)) {
udpipaddr_print(ndo, ip, sport, dport);
ND_PRINT((ndo, "truncated-udplength %d", ulen));
cp = (const u_char *)(up + 1);
if (cp > ndo->ndo_snapend) {
udpipaddr_print(ndo, ip, sport, dport);
- ND_PRINT((ndo, "[|udp]"));
- return;
+ goto trunc;
}
if (ndo->ndo_packettype) {
case PT_RPC:
rp = (const struct sunrpc_msg *)(up + 1);
- direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
+ direction = (enum sunrpc_msg_type) EXTRACT_BE_U_4(&rp->rm_direction);
if (direction == SUNRPC_CALL)
- sunrpcrequest_print(ndo, (const u_char *)rp, length,
+ sunrpc_print(ndo, (const u_char *)rp, length,
(const u_char *)ip);
else
nfsreply_print(ndo, (const u_char *)rp, length,
rp = (const struct sunrpc_msg *)(up + 1);
if (ND_TTEST(rp->rm_direction)) {
- direction = (enum sunrpc_msg_type)EXTRACT_32BITS(&rp->rm_direction);
+ direction = (enum sunrpc_msg_type) EXTRACT_BE_U_4(&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, (const u_char *)rp, length,
+ ND_PRINT((ndo, "NFS request xid %u ", EXTRACT_BE_U_4(&rp->rm_xid)));
+ nfsreq_noaddr_print(ndo, (const u_char *)rp, length,
(const u_char *)ip);
return;
}
if (sport == NFS_PORT && direction == SUNRPC_REPLY) {
- ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_32BITS(&rp->rm_xid)));
- nfsreply_print_noaddr(ndo, (const u_char *)rp, length,
+ ND_PRINT((ndo, "NFS reply xid %u ", EXTRACT_BE_U_4(&rp->rm_xid)));
+ nfsreply_noaddr_print(ndo, (const u_char *)rp, length,
(const u_char *)ip);
return;
}
#ifdef notdef
if (dport == SUNRPC_PORT && direction == SUNRPC_CALL) {
- sunrpcrequest_print((const u_char *)rp, length, (const u_char *)ip);
+ sunrpc_print((const u_char *)rp, length, (const u_char *)ip);
return;
}
#endif
* 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);
+ udp_sum = EXTRACT_BE_U_2(up->uh_sum);
if (udp_sum == 0) {
ND_PRINT((ndo, "[no cksum] "));
} else if (ND_TTEST2(cp[0], length)) {
/* for IPv6, UDP checksum is mandatory */
if (ND_TTEST2(cp[0], length)) {
sum = udp6_cksum(ndo, ip6, up, length + sizeof(struct udphdr));
- udp_sum = EXTRACT_16BITS(&up->uh_sum);
+ udp_sum = EXTRACT_BE_U_2(up->uh_sum);
if (sum != 0) {
ND_PRINT((ndo, "[bad udp cksum 0x%04x -> 0x%04x!] ",
if (!ndo->ndo_qflag) {
if (IS_SRC_OR_DST_PORT(NAMESERVER_PORT))
- ns_print(ndo, (const u_char *)(up + 1), length, 0);
+ domain_print(ndo, (const u_char *)(up + 1), length, 0);
else if (IS_SRC_OR_DST_PORT(MULTICASTDNS_PORT))
- ns_print(ndo, (const u_char *)(up + 1), length, 1);
+ domain_print(ndo, (const u_char *)(up + 1), length, 1);
else if (IS_SRC_OR_DST_PORT(TIMED_PORT))
timed_print(ndo, (const u_char *)(up + 1));
else if (IS_SRC_OR_DST_PORT(TFTP_PORT))
isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_NATT))
isakmp_rfc3948_print(ndo, (const u_char *)(up + 1), length, bp2);
-#if 1 /*???*/
else if (IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER1) || IS_SRC_OR_DST_PORT(ISAKMP_PORT_USER2))
isakmp_print(ndo, (const u_char *)(up + 1), length, bp2);
-#endif
else if (IS_SRC_OR_DST_PORT(SNMP_PORT) || IS_SRC_OR_DST_PORT(SNMPTRAP_PORT))
snmp_print(ndo, (const u_char *)(up + 1), length);
else if (IS_SRC_OR_DST_PORT(NTP_PORT))
else
ND_PRINT((ndo, "UDP, length %u", ulen));
}
+ return;
+
+trunc:
+ ND_PRINT((ndo, "%s", udp_tstr));
}
projects / tcpdump / blobdiff