260 lines
6.9 KiB
C
260 lines
6.9 KiB
C
/* $NetBSD: print-udp.c,v 1.3 1995/03/06 19:11:36 mycroft Exp $ */
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/*
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* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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static char rcsid[] =
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"@(#) Header: print-udp.c,v 1.37 94/06/10 17:01:42 mccanne Exp (LBL)";
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#endif
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_var.h>
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#include <netinet/udp.h>
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#include <netinet/udp_var.h>
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#undef NOERROR /* Solaris sucks */
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#include <arpa/nameser.h>
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#include <arpa/tftp.h>
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#ifdef SOLARIS
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#include <tiuser.h>
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#endif
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#include <rpc/rpc.h>
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#include <errno.h>
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#include <stdio.h>
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#include "interface.h"
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#include "addrtoname.h"
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#include "appletalk.h"
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#include "nfsv2.h"
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#include "bootp.h"
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extern int packettype;
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static void
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vat_print(const void *hdr, int len, register const struct udphdr *up)
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{
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/* vat/vt audio */
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u_int ts = *(u_short *)hdr;
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if ((ts & 0xf060) != 0) {
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/* probably vt */
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(void)printf(" udp/vt %d %d / %d",
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ntohs(up->uh_ulen) - sizeof(*up),
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ts & 0x3ff, ts >> 10);
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} else {
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/* probably vat */
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u_int i0 = ((u_int *)hdr)[0];
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u_int i1 = ((u_int *)hdr)[1];
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printf(" udp/vat %d c%d %u%s",
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ntohs(up->uh_ulen) - sizeof(*up) - 8,
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i0 & 0xffff,
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i1, i0 & 0x800000? "*" : "");
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/* audio format */
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if (i0 & 0x1f0000)
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printf(" f%d", (i0 >> 16) & 0x1f);
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if (i0 & 0x3f000000)
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printf(" s%d", (i0 >> 24) & 0x3f);
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}
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}
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static void
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rtp_print(const void *hdr, int len, register const struct udphdr *up)
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{
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/* rtp v1 video */
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u_int *ip = (u_int *)hdr;
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u_int i0 = ((u_int *)hdr)[0];
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u_int i1 = ((u_int *)hdr)[1];
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u_int hasopt = i0 & 0x800000;
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u_int contype = (i0 >> 16) & 0x3f;
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printf(" udp/rtp %d c%d %s%s %d",
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ntohs(up->uh_ulen) - sizeof(*up) - 8,
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contype,
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hasopt? "+" : "",
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i0 & 0x400000? "*" : "",
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i0 & 0xffff);
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if (contype == 31) {
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ip += 2;
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len >>= 2;
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len -= 2;
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if (hasopt) {
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u_int i2, optlen;
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do {
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i2 = ip[0];
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optlen = (i2 >> 16) & 0xff;
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if (optlen == 0 || optlen > len) {
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printf(" !opt");
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return;
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}
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ip += optlen;
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} while ((int)i2 >= 0);
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}
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printf(" 0x%04x", ip[0] >> 16);
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}
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if (vflag)
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printf(" %u", i1);
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}
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/* XXX probably should use getservbyname() and cache answers */
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#define TFTP_PORT 69 /*XXX*/
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#define SUNRPC_PORT 111 /*XXX*/
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#define SNMP_PORT 161 /*XXX*/
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#define NTP_PORT 123 /*XXX*/
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#define SNMPTRAP_PORT 162 /*XXX*/
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#define RIP_PORT 520 /*XXX*/
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void
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udp_print(register const u_char *bp, int length, register const u_char *bp2)
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{
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register const struct udphdr *up;
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register const struct ip *ip;
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register const u_char *cp;
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u_short sport, dport, ulen;
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up = (struct udphdr *)bp;
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ip = (struct ip *)bp2;
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cp = (u_char *)(up + 1);
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if (cp > snapend) {
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printf("[|udp]");
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return;
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}
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if (length < sizeof(struct udphdr)) {
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(void)printf(" truncated-udp %d", length);
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return;
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}
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length -= sizeof(struct udphdr);
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sport = ntohs(up->uh_sport);
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dport = ntohs(up->uh_dport);
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ulen = ntohs(up->uh_ulen);
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if (packettype) {
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register struct rpc_msg *rp;
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enum msg_type direction;
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switch (packettype) {
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case 1:
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(void)printf("%s.%s > %s.%s:",
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ipaddr_string(&ip->ip_src),
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udpport_string(sport),
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ipaddr_string(&ip->ip_dst),
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udpport_string(dport));
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vat_print((void *)(up + 1), length, up);
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break;
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case 2:
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(void)printf("%s.%s > %s.%s:",
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ipaddr_string(&ip->ip_src),
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udpport_string(sport),
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ipaddr_string(&ip->ip_dst),
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udpport_string(dport));
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wb_print((void *)(up + 1), length);
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break;
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case 3:
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rp = (struct rpc_msg *)(up + 1);
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direction = (enum msg_type)ntohl(rp->rm_direction);
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if (direction == CALL)
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sunrpcrequest_print((u_char *)rp, length,
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(u_char *)ip);
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else
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nfsreply_print((u_char *)rp, length,
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(u_char *)ip); /*XXX*/
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break;
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case 4:
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(void)printf("%s.%s > %s.%s:",
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ipaddr_string(&ip->ip_src),
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udpport_string(sport),
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ipaddr_string(&ip->ip_dst),
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udpport_string(dport));
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rtp_print((void *)(up + 1), length, up);
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break;
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}
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return;
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}
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if (! qflag) {
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register struct rpc_msg *rp;
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enum msg_type direction;
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rp = (struct rpc_msg *)(up + 1);
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direction = (enum msg_type)ntohl(rp->rm_direction);
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if (dport == NFS_PORT && direction == CALL) {
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nfsreq_print((u_char *)rp, length, (u_char *)ip);
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return;
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}
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else if (sport == NFS_PORT && direction == REPLY) {
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nfsreply_print((u_char *)rp, length, (u_char *)ip);
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return;
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}
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#ifdef notdef
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else if (dport == SUNRPC_PORT && direction == CALL) {
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sunrpcrequest_print((u_char *)rp, length, (u_char *)ip);
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return;
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}
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#endif
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else if (((struct LAP *)cp)->type == lapDDP &&
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(atalk_port(sport) || atalk_port(dport))) {
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if (vflag)
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fputs("kip ", stdout);
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atalk_print(cp, length);
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return;
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}
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}
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(void)printf("%s.%s > %s.%s:",
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ipaddr_string(&ip->ip_src), udpport_string(sport),
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ipaddr_string(&ip->ip_dst), udpport_string(dport));
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if (!qflag) {
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#define ISPORT(p) (dport == (p) || sport == (p))
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if (ISPORT(NAMESERVER_PORT))
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ns_print((const u_char *)(up + 1), length);
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else if (ISPORT(TFTP_PORT))
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tftp_print((const u_char *)(up + 1), length);
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else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS))
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bootp_print((const u_char *)(up + 1), length,
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sport, dport);
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else if (dport == RIP_PORT)
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rip_print((const u_char *)(up + 1), length);
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else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT))
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snmp_print((const u_char *)(up + 1), length);
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else if (ISPORT(NTP_PORT))
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ntp_print((const u_char *)(up + 1), length);
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else if (dport == 3456)
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vat_print((const void *)(up + 1), length, up);
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/*
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* Kludge in test for whiteboard packets.
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*/
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else if (dport == 4567)
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wb_print((const void *)(up + 1), length);
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else
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(void)printf(" udp %d", ulen - sizeof(*up));
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#undef ISPORT
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} else
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(void)printf(" udp %d", ulen - sizeof(*up));
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}
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