| 1 | /* |
| 2 | * Copyright (c) 1988-1990 The Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that: (1) source code distributions |
| 7 | * retain the above copyright notice and this paragraph in its entirety, (2) |
| 8 | * distributions including binary code include the above copyright notice and |
| 9 | * this paragraph in its entirety in the documentation or other materials |
| 10 | * provided with the distribution, and (3) all advertising materials mentioning |
| 11 | * features or use of this software display the following acknowledgement: |
| 12 | * ``This product includes software developed by the University of California, |
| 13 | * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| 14 | * the University nor the names of its contributors may be used to endorse |
| 15 | * or promote products derived from this software without specific prior |
| 16 | * written permission. |
| 17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| 18 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| 19 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 20 | */ |
| 21 | |
| 22 | #ifndef lint |
| 23 | static char rcsid[] = |
| 24 | "@(#) $Header: /a/cvs/386BSD/src/contrib/tcpdump/tcpdump/print-udp.c,v 1.1.1.1 1993/06/12 14:42:06 rgrimes Exp $ (LBL)"; |
| 25 | #endif |
| 26 | |
| 27 | #include <sys/param.h> |
| 28 | #include <sys/types.h> |
| 29 | #include <sys/socket.h> |
| 30 | #include <netinet/in.h> |
| 31 | #include <netinet/in_systm.h> |
| 32 | #include <netinet/ip.h> |
| 33 | #include <netinet/ip_var.h> |
| 34 | #include <netinet/udp.h> |
| 35 | #include <netinet/udp_var.h> |
| 36 | |
| 37 | #include <arpa/nameser.h> |
| 38 | #include <arpa/tftp.h> |
| 39 | #include <errno.h> |
| 40 | #include <sys/time.h> |
| 41 | #include <rpc/rpc.h> |
| 42 | |
| 43 | #include "interface.h" |
| 44 | /* These must come after interface.h for BSD. */ |
| 45 | #if BSD >= 199006 |
| 46 | #include <sys/ucred.h> |
| 47 | #include <nfs/nfsv2.h> |
| 48 | #endif |
| 49 | #include <nfs/nfs.h> |
| 50 | |
| 51 | #include "addrtoname.h" |
| 52 | #include "appletalk.h" |
| 53 | |
| 54 | #include "bootp.h" |
| 55 | |
| 56 | /* XXX probably should use getservbyname() and cache answers */ |
| 57 | #define TFTP_PORT 69 /*XXX*/ |
| 58 | #define SUNRPC_PORT 111 /*XXX*/ |
| 59 | #define SNMP_PORT 161 /*XXX*/ |
| 60 | #define NTP_PORT 123 /*XXX*/ |
| 61 | #define SNMPTRAP_PORT 162 /*XXX*/ |
| 62 | #define RIP_PORT 520 /*XXX*/ |
| 63 | |
| 64 | void |
| 65 | udp_print(up, length, ip) |
| 66 | register struct udphdr *up; |
| 67 | int length; |
| 68 | register struct ip *ip; |
| 69 | { |
| 70 | register u_char *cp = (u_char *)(up + 1); |
| 71 | |
| 72 | if (cp > snapend) { |
| 73 | printf("[|udp]"); |
| 74 | return; |
| 75 | } |
| 76 | if (length < sizeof(struct udphdr)) { |
| 77 | (void)printf(" truncated-udp %d", length); |
| 78 | return; |
| 79 | } |
| 80 | length -= sizeof(struct udphdr); |
| 81 | |
| 82 | NTOHS(up->uh_sport); |
| 83 | NTOHS(up->uh_dport); |
| 84 | NTOHS(up->uh_ulen); |
| 85 | |
| 86 | if (! qflag) { |
| 87 | register struct rpc_msg *rp; |
| 88 | enum msg_type direction; |
| 89 | |
| 90 | rp = (struct rpc_msg *)(up + 1); |
| 91 | direction = (enum msg_type)ntohl(rp->rm_direction); |
| 92 | if (up->uh_dport == NFS_PORT && direction == CALL) { |
| 93 | nfsreq_print(rp, length, ip); |
| 94 | return; |
| 95 | } |
| 96 | else if (up->uh_sport == NFS_PORT && direction == REPLY) { |
| 97 | nfsreply_print(rp, length, ip); |
| 98 | return; |
| 99 | } |
| 100 | #ifdef notdef |
| 101 | else if (up->uh_dport == SUNRPC_PORT && direction == CALL) { |
| 102 | sunrpcrequest_print(rp, length, ip); |
| 103 | return; |
| 104 | } |
| 105 | #endif |
| 106 | else if (cp[2] == 2 && (atalk_port(up->uh_sport) || |
| 107 | atalk_port(up->uh_dport))) { |
| 108 | ddp_print((struct atDDP *)(&cp[3]), length - 3); |
| 109 | return; |
| 110 | } |
| 111 | } |
| 112 | (void)printf("%s.%s > %s.%s:", |
| 113 | ipaddr_string(&ip->ip_src), udpport_string(up->uh_sport), |
| 114 | ipaddr_string(&ip->ip_dst), udpport_string(up->uh_dport)); |
| 115 | |
| 116 | if (!qflag) { |
| 117 | #define ISPORT(p) (up->uh_dport == (p) || up->uh_sport == (p)) |
| 118 | if (ISPORT(NAMESERVER_PORT)) |
| 119 | ns_print((HEADER *)(up + 1), length); |
| 120 | else if (ISPORT(TFTP_PORT)) |
| 121 | tftp_print((struct tftphdr *)(up + 1), length); |
| 122 | else if (ISPORT(IPPORT_BOOTPC) || ISPORT(IPPORT_BOOTPS)) |
| 123 | bootp_print((struct bootp *)(up + 1), length, |
| 124 | up->uh_sport, up->uh_dport); |
| 125 | else if (up->uh_dport == RIP_PORT) |
| 126 | rip_print((u_char *)(up + 1), length); |
| 127 | else if (ISPORT(SNMP_PORT) || ISPORT(SNMPTRAP_PORT)) |
| 128 | snmp_print((u_char *)(up + 1), length); |
| 129 | else if (ISPORT(NTP_PORT)) |
| 130 | ntp_print((struct ntpdata *)(up + 1), length); |
| 131 | else |
| 132 | (void)printf(" udp %d", up->uh_ulen - sizeof(*up)); |
| 133 | #undef ISPORT |
| 134 | } else |
| 135 | (void)printf(" udp %d", up->uh_ulen - sizeof(*up)); |
| 136 | } |