/* $OpenBSD: interface.h,v 1.85 2020/06/21 05:00:17 dlg Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#) $Id: interface.h,v 1.85 2020/06/21 05:00:17 dlg Exp $ (LBL) */ #ifndef tcpdump_interface_h #define tcpdump_interface_h #ifdef HAVE_OS_PROTO_H #include "os-proto.h" #endif struct tok { int v; /* value */ char *s; /* string */ }; extern int aflag; /* translate network and broadcast addresses */ extern int dflag; /* print filter code */ extern int eflag; /* print ethernet header */ extern int fflag; /* don't translate "foreign" IP address */ extern int Iflag; /* include interface in output */ extern int nflag; /* leave addresses as numbers */ extern int Nflag; /* remove domains from printed host names */ extern int oflag; /* OS fingerprint */ extern int qflag; /* quick (shorter) output */ extern int Sflag; /* print raw TCP sequence numbers */ extern int tflag; /* print packet arrival time */ extern int vflag; /* verbose */ extern int xflag; /* print packet in hex */ extern int Xflag; /* print packet in hex/ascii */ extern int packettype; /* as specified by -T */ extern char *device; /* as specified by -i */ #define PT_VAT 1 /* Visual Audio Tool */ #define PT_WB 2 /* distributed White Board */ #define PT_RPC 3 /* Remote Procedure Call */ #define PT_RTP 4 /* Real-Time Applications protocol */ #define PT_RTCP 5 /* Real-Time Applications control protocol */ #define PT_CNFP 6 /* Cisco NetFlow protocol */ #define PT_VRRP 7 /* Virtual Router Redundancy protocol */ #define PT_TCP 8 /* TCP */ #define PT_GRE 9 /* Generic Routing Encapsulation (over UDP) */ #define PT_MPLS 10 /* MPLS (over UDP) */ #define PT_TFTP 11 /* Trivial File Transfer Protocol */ #define PT_VXLAN 12 /* Virtual eXtensible Local Area Network */ #define PT_ERSPAN 13 /* GRE ERSPAN Type I or II */ #define PT_WIREGUARD 14 /* WireGuard tunnel */ #ifndef min #define min(a,b) ((a)>(b)?(b):(a)) #endif #ifndef max #define max(a,b) ((b)>(a)?(b):(a)) #endif /* * The default snapshot length. This value allows most printers to print * useful information while keeping the amount of unwanted data down. * In particular, it allows ethernet, tcp/ip headers, and a small amount * of data, or to capture IPv6 and TCP headers after pflog encapsulation. */ #define DEFAULT_SNAPLEN 116 #define IEEE802_11_SNAPLEN (DEFAULT_SNAPLEN + 30) #define IEEE802_11_RADIO_SNAPLEN (IEEE802_11_SNAPLEN + 64) #ifndef BIG_ENDIAN #define BIG_ENDIAN 4321 #define LITTLE_ENDIAN 1234 #endif #ifdef ETHER_HEADER_HAS_EA #define ESRC(ep) ((ep)->ether_shost.ether_addr_octet) #define EDST(ep) ((ep)->ether_dhost.ether_addr_octet) #else #define ESRC(ep) ((ep)->ether_shost) #define EDST(ep) ((ep)->ether_dhost) #endif #ifdef ETHER_ARP_HAS_X #define SHA(ap) ((ap)->arp_xsha) #define THA(ap) ((ap)->arp_xtha) #define SPA(ap) ((ap)->arp_xspa) #define TPA(ap) ((ap)->arp_xtpa) #else #ifdef ETHER_ARP_HAS_EA #define SHA(ap) ((ap)->arp_sha.ether_addr_octet) #define THA(ap) ((ap)->arp_tha.ether_addr_octet) #else #define SHA(ap) ((ap)->arp_sha) #define THA(ap) ((ap)->arp_tha) #endif #define SPA(ap) ((ap)->arp_spa) #define TPA(ap) ((ap)->arp_tpa) #endif #ifndef NTOHL #define NTOHL(x) (x) = ntohl(x) #define NTOHS(x) (x) = ntohs(x) #define HTONL(x) (x) = htonl(x) #define HTONS(x) (x) = htons(x) #endif #endif extern char *program_name; /* used to generate self-identifying messages */ extern int32_t thiszone; /* seconds offset from gmt to local time */ extern int snaplen; /* global pointers to beginning and end of current packet (during printing) */ extern const u_char *packetp; extern const u_char *snapend; /* * True if "l" bytes of "var" were captured. * * The "snapend - (l) <= snapend" checks to make sure "l" isn't so large * that "snapend - (l)" underflows. * * The check is for <= rather than < because "l" might be 0. */ #define TTEST2(var, l) (snapend - (l) <= snapend && \ (const u_char *)&(var) <= snapend - (l)) /* True if "var" was captured */ #define TTEST(var) TTEST2(var, sizeof(var)) /* Bail if "l" bytes of "var" were not captured */ #define TCHECK2(var, l) if (!TTEST2(var, l)) goto trunc /* Bail if "var" was not captured */ #define TCHECK(var) TCHECK2(var, sizeof(var)) struct timeval; struct bpf_timeval; extern void ts_print(const struct bpf_timeval *); extern int fn_print(const u_char *, const u_char *); extern int fn_printn(const u_char *, u_int, const u_char *); extern void relts_print(int); extern const char *tok2str(const struct tok *, const char *, int); extern char *dnaddr_string(u_short); extern void safeputs(const char *); extern void safeputchar(int); extern void printb(char *, unsigned short, char *); extern void wrapup(int); extern __dead void error(const char *, ...) __attribute__((__format__ (printf, 1, 2))); extern void warning(const char *, ...) __attribute__ ((__format__ (printf, 1, 2))); extern char *read_infile(char *); extern char *copy_argv(char * const *); extern char *isonsap_string(const u_char *); extern char *llcsap_string(u_char); extern char *protoid_string(const u_char *); extern char *dnname_string(u_short); extern char *dnnum_string(u_short); /* The printer routines. */ struct pcap_pkthdr; extern int ether_encap_print(u_short, const u_char *, u_int, u_int); extern int llc_print(const u_char *, u_int, u_int, const u_char *, const u_char *); extern int pppoe_if_print(u_short, const u_char *, u_int, u_int); extern void aarp_print(const u_char *, u_int); extern void arp_print(const u_char *, u_int, u_int); extern void atalk_print(const u_char *, u_int); extern void atalk_print_llap(const u_char *, u_int); extern void atm_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void bootp_print(const u_char *, u_int, u_short, u_short); extern void bgp_print(const u_char *, int); extern void decnet_print(const u_char *, u_int, u_int); extern void default_print(const u_char *, u_int); extern void default_print_unaligned(const u_char *, u_int); extern void dvmrp_print(const u_char *, u_int); extern void egp_print(const u_char *, u_int, const u_char *); extern void enc_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void pflog_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void pflog_old_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void pfsync_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void pfsync_ip_print(const u_char *, u_int, const u_char *); extern void ether_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void ether_tryprint(const u_char *, u_int, int); extern void fddi_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void ppp_ether_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void gre_print(const u_char *, u_int); extern void vxlan_print(const u_char *, u_int); extern void nsh_print(const u_char *, u_int); extern void nhrp_print(const u_char *, u_int); extern void icmp_print(const u_char *, u_int, const u_char *); extern void ieee802_11_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void ieee802_11_radio_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void iapp_print(const u_char *, u_int); extern void igrp_print(const u_char *, u_int, const u_char *); extern void ip_print(const u_char *, u_int); extern void ipx_print(const u_char *, u_int); extern void isoclns_print(const u_char *, u_int, u_int, const u_char *, const u_char *); extern void krb_print(const u_char *, u_int); extern void netbeui_print(u_short, const u_char *, const u_char *); extern void ipx_netbios_print(const u_char *, const u_char *); extern void nbt_tcp_print(const u_char *, int); extern void nbt_udp137_print(const u_char *data, int); extern void nbt_udp138_print(const u_char *data, int); extern char *smb_errstr(int, int); extern void print_data(const unsigned char *, int); extern void l2tp_print(const u_char *dat, u_int length); extern void vrrp_print(const u_char *bp, u_int len, int ttl); extern void carp_print(const u_char *bp, u_int len, int ttl); extern void hsrp_print(const u_char *, u_int); extern void vqp_print(const u_char *, u_int); extern void nfsreply_print(const u_char *, u_int, const u_char *); extern void nfsreq_print(const u_char *, u_int, const u_char *); extern void ns_print(const u_char *, u_int, int); extern void ntp_print(const u_char *, u_int); extern void loop_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void null_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void ospf_print(const u_char *, u_int, const u_char *); extern void mobile_print(const u_char *, u_int); extern void pim_print(const u_char *, u_int); extern void ppp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void ppp_hdlc_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void ppp_print(const u_char *, u_int); extern void ppp_hdlc_print(const u_char *, u_int); extern void raw_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void rip_print(const u_char *, u_int); extern void sl_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void sl_bsdos_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void snmp_print(const u_char *, u_int); extern void sunrpcrequest_print(const u_char *, u_int, const u_char *); extern void cnfp_print(const u_char *, u_int); extern void tcp_print(const u_char *, u_int, const u_char *); extern void tftp_print(const u_char *, u_int); extern void wg_print(const u_char *, u_int); extern void timed_print(const u_char *, u_int); extern void udp_print(const u_char *, u_int, const void *); extern void wb_print(const void *, u_int); extern void ike_print(const u_char *, u_int); extern void udpencap_print(const u_char *, u_int, const u_char *); extern void ah_print(const u_char *, u_int, const u_char *); extern void esp_print(const u_char *, u_int, const u_char *); extern void cdp_print(const u_char *, u_int, u_int, int); extern void stp_print(const u_char *, u_int); extern void radius_print(const u_char *, u_int); extern void lwres_print(const u_char *, u_int); extern void ether_print(const u_char *, u_int); extern void etherip_print(const u_char *, u_int, u_int); extern void ipcomp_print(const u_char *, u_int, const u_char *); extern void mpls_print(const u_char *, u_int); extern void lldp_print(const u_char *, u_int); extern void slow_print(const u_char *, u_int); extern void gtp_print(const u_char *, u_int, u_short, u_short); extern void ofp_print(const u_char *, u_int); extern void ofp_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void usbpcap_if_print(u_char *, const struct pcap_pkthdr *, const u_char *); extern void ip6_print(const u_char *, u_int); extern void ip6_opt_print(const u_char *, int); extern int hbhopt_print(const u_char *); extern int dstopt_print(const u_char *); extern int frag6_print(const u_char *, const u_char *); extern void icmp6_print(const u_char *, u_int, const u_char *); extern void ripng_print(const u_char *, int); extern int rt6_print(const u_char *, const u_char *); extern void ospf6_print(const u_char *, u_int); extern void dhcp6_print(const u_char *, u_int); extern uint32_t in_cksum_add(const void *, size_t, uint32_t); extern uint16_t in_cksum_fini(uint32_t); extern uint16_t in_cksum(const void *, size_t, uint32_t); extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t); extern uint32_t wg_match(const u_char *, u_int);