mirror of
https://github.com/the-tcpdump-group/tcpdump.git
synced 2024-11-30 21:44:49 +08:00
3dc736d939
Handle attributes for function pointers the same way we handle attributes for functions, by explicitly checking for the compiler version with #if rather than with a configure script check. That's one fewer thing that, if you're not using autoconf, has to be done in some other fashion. While we're at it, put NORETURN in the right place to have it work with Microsoft Visual Studio as well as various UN*X compilers.
478 lines
12 KiB
C
478 lines
12 KiB
C
/*
|
|
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
|
|
* 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.
|
|
*
|
|
* Support for splitting captures into multiple files with a maximum
|
|
* file size:
|
|
*
|
|
* Copyright (c) 2001
|
|
* Seth Webster <swebster@sst.ll.mit.edu>
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <netdissect-stdinc.h>
|
|
|
|
#include "netdissect.h"
|
|
#include "addrtoname.h"
|
|
#include "print.h"
|
|
|
|
struct printer {
|
|
if_printer f;
|
|
int type;
|
|
};
|
|
|
|
static const struct printer printers[] = {
|
|
{ ether_if_print, DLT_EN10MB },
|
|
#ifdef DLT_IPNET
|
|
{ ipnet_if_print, DLT_IPNET },
|
|
#endif
|
|
#ifdef DLT_IEEE802_15_4
|
|
{ ieee802_15_4_if_print, DLT_IEEE802_15_4 },
|
|
#endif
|
|
#ifdef DLT_IEEE802_15_4_NOFCS
|
|
{ ieee802_15_4_if_print, DLT_IEEE802_15_4_NOFCS },
|
|
#endif
|
|
#ifdef DLT_PPI
|
|
{ ppi_if_print, DLT_PPI },
|
|
#endif
|
|
#ifdef DLT_NETANALYZER
|
|
{ netanalyzer_if_print, DLT_NETANALYZER },
|
|
#endif
|
|
#ifdef DLT_NETANALYZER_TRANSPARENT
|
|
{ netanalyzer_transparent_if_print, DLT_NETANALYZER_TRANSPARENT },
|
|
#endif
|
|
#if defined(DLT_NFLOG) && defined(HAVE_PCAP_NFLOG_H)
|
|
{ nflog_if_print, DLT_NFLOG},
|
|
#endif
|
|
#ifdef DLT_CIP
|
|
{ cip_if_print, DLT_CIP },
|
|
#endif
|
|
#ifdef DLT_ATM_CLIP
|
|
{ cip_if_print, DLT_ATM_CLIP },
|
|
#endif
|
|
#ifdef DLT_IP_OVER_FC
|
|
{ ipfc_if_print, DLT_IP_OVER_FC },
|
|
#endif
|
|
{ null_if_print, DLT_NULL },
|
|
#ifdef DLT_LOOP
|
|
{ null_if_print, DLT_LOOP },
|
|
#endif
|
|
#ifdef DLT_APPLE_IP_OVER_IEEE1394
|
|
{ ap1394_if_print, DLT_APPLE_IP_OVER_IEEE1394 },
|
|
#endif
|
|
#if defined(DLT_BLUETOOTH_HCI_H4_WITH_PHDR) && defined(HAVE_PCAP_BLUETOOTH_H)
|
|
{ bt_if_print, DLT_BLUETOOTH_HCI_H4_WITH_PHDR},
|
|
#endif
|
|
#ifdef DLT_LANE8023
|
|
{ lane_if_print, DLT_LANE8023 },
|
|
#endif
|
|
{ arcnet_if_print, DLT_ARCNET },
|
|
#ifdef DLT_ARCNET_LINUX
|
|
{ arcnet_linux_if_print, DLT_ARCNET_LINUX },
|
|
#endif
|
|
{ raw_if_print, DLT_RAW },
|
|
#ifdef DLT_IPV4
|
|
{ raw_if_print, DLT_IPV4 },
|
|
#endif
|
|
#ifdef DLT_IPV6
|
|
{ raw_if_print, DLT_IPV6 },
|
|
#endif
|
|
#ifdef HAVE_PCAP_USB_H
|
|
#ifdef DLT_USB_LINUX
|
|
{ usb_linux_48_byte_print, DLT_USB_LINUX},
|
|
#endif /* DLT_USB_LINUX */
|
|
#ifdef DLT_USB_LINUX_MMAPPED
|
|
{ usb_linux_64_byte_print, DLT_USB_LINUX_MMAPPED},
|
|
#endif /* DLT_USB_LINUX_MMAPPED */
|
|
#endif /* HAVE_PCAP_USB_H */
|
|
#ifdef DLT_SYMANTEC_FIREWALL
|
|
{ symantec_if_print, DLT_SYMANTEC_FIREWALL },
|
|
#endif
|
|
#ifdef DLT_C_HDLC
|
|
{ chdlc_if_print, DLT_C_HDLC },
|
|
#endif
|
|
#ifdef DLT_HDLC
|
|
{ chdlc_if_print, DLT_HDLC },
|
|
#endif
|
|
#ifdef DLT_PPP_ETHER
|
|
{ pppoe_if_print, DLT_PPP_ETHER },
|
|
#endif
|
|
#if defined(DLT_PFLOG) && defined(HAVE_NET_IF_PFLOG_H)
|
|
{ pflog_if_print, DLT_PFLOG },
|
|
#endif
|
|
{ token_if_print, DLT_IEEE802 },
|
|
{ fddi_if_print, DLT_FDDI },
|
|
#ifdef DLT_LINUX_SLL
|
|
{ sll_if_print, DLT_LINUX_SLL },
|
|
#endif
|
|
#ifdef DLT_FR
|
|
{ fr_if_print, DLT_FR },
|
|
#endif
|
|
#ifdef DLT_FRELAY
|
|
{ fr_if_print, DLT_FRELAY },
|
|
#endif
|
|
#ifdef DLT_MFR
|
|
{ mfr_if_print, DLT_MFR },
|
|
#endif
|
|
{ atm_if_print, DLT_ATM_RFC1483 },
|
|
#ifdef DLT_SUNATM
|
|
{ sunatm_if_print, DLT_SUNATM },
|
|
#endif
|
|
#ifdef DLT_ENC
|
|
{ enc_if_print, DLT_ENC },
|
|
#endif
|
|
{ sl_if_print, DLT_SLIP },
|
|
#ifdef DLT_SLIP_BSDOS
|
|
{ sl_bsdos_if_print, DLT_SLIP_BSDOS },
|
|
#endif
|
|
#ifdef DLT_LTALK
|
|
{ ltalk_if_print, DLT_LTALK },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_ATM1
|
|
{ juniper_atm1_print, DLT_JUNIPER_ATM1 },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_ATM2
|
|
{ juniper_atm2_print, DLT_JUNIPER_ATM2 },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_MFR
|
|
{ juniper_mfr_print, DLT_JUNIPER_MFR },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_MLFR
|
|
{ juniper_mlfr_print, DLT_JUNIPER_MLFR },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_MLPPP
|
|
{ juniper_mlppp_print, DLT_JUNIPER_MLPPP },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_PPPOE
|
|
{ juniper_pppoe_print, DLT_JUNIPER_PPPOE },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_PPPOE_ATM
|
|
{ juniper_pppoe_atm_print, DLT_JUNIPER_PPPOE_ATM },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_GGSN
|
|
{ juniper_ggsn_print, DLT_JUNIPER_GGSN },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_ES
|
|
{ juniper_es_print, DLT_JUNIPER_ES },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_MONITOR
|
|
{ juniper_monitor_print, DLT_JUNIPER_MONITOR },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_SERVICES
|
|
{ juniper_services_print, DLT_JUNIPER_SERVICES },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_ETHER
|
|
{ juniper_ether_print, DLT_JUNIPER_ETHER },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_PPP
|
|
{ juniper_ppp_print, DLT_JUNIPER_PPP },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_FRELAY
|
|
{ juniper_frelay_print, DLT_JUNIPER_FRELAY },
|
|
#endif
|
|
#ifdef DLT_JUNIPER_CHDLC
|
|
{ juniper_chdlc_print, DLT_JUNIPER_CHDLC },
|
|
#endif
|
|
#ifdef DLT_PKTAP
|
|
{ pktap_if_print, DLT_PKTAP },
|
|
#endif
|
|
#ifdef DLT_IEEE802_11_RADIO
|
|
{ ieee802_11_radio_if_print, DLT_IEEE802_11_RADIO },
|
|
#endif
|
|
#ifdef DLT_IEEE802_11
|
|
{ ieee802_11_if_print, DLT_IEEE802_11},
|
|
#endif
|
|
#ifdef DLT_IEEE802_11_RADIO_AVS
|
|
{ ieee802_11_radio_avs_if_print, DLT_IEEE802_11_RADIO_AVS },
|
|
#endif
|
|
#ifdef DLT_PRISM_HEADER
|
|
{ prism_if_print, DLT_PRISM_HEADER },
|
|
#endif
|
|
{ ppp_if_print, DLT_PPP },
|
|
#ifdef DLT_PPP_WITHDIRECTION
|
|
{ ppp_if_print, DLT_PPP_WITHDIRECTION },
|
|
#endif
|
|
#ifdef DLT_PPP_BSDOS
|
|
{ ppp_bsdos_if_print, DLT_PPP_BSDOS },
|
|
#endif
|
|
#ifdef DLT_PPP_SERIAL
|
|
{ ppp_hdlc_if_print, DLT_PPP_SERIAL },
|
|
#endif
|
|
{ NULL, 0 },
|
|
};
|
|
|
|
static void ndo_default_print(netdissect_options *ndo, const u_char *bp,
|
|
u_int length);
|
|
|
|
static void NORETURN ndo_error(netdissect_options *ndo,
|
|
FORMAT_STRING(const char *fmt), ...)
|
|
PRINTFLIKE(2, 3);
|
|
static void ndo_warning(netdissect_options *ndo,
|
|
FORMAT_STRING(const char *fmt), ...)
|
|
PRINTFLIKE(2, 3);
|
|
|
|
static int ndo_printf(netdissect_options *ndo,
|
|
FORMAT_STRING(const char *fmt), ...)
|
|
PRINTFLIKE(2, 3);
|
|
|
|
void
|
|
init_print(netdissect_options *ndo, uint32_t localnet, uint32_t mask,
|
|
uint32_t timezone_offset)
|
|
{
|
|
|
|
thiszone = timezone_offset;
|
|
init_addrtoname(ndo, localnet, mask);
|
|
init_checksum();
|
|
}
|
|
|
|
if_printer
|
|
lookup_printer(int type)
|
|
{
|
|
const struct printer *p;
|
|
|
|
for (p = printers; p->f; ++p)
|
|
if (type == p->type)
|
|
return p->f;
|
|
|
|
#if defined(DLT_USER2) && defined(DLT_PKTAP)
|
|
/*
|
|
* Apple incorrectly chose to use DLT_USER2 for their PKTAP
|
|
* header.
|
|
*
|
|
* We map DLT_PKTAP, whether it's DLT_USER2 as it is on Darwin-
|
|
* based OSes or the same value as LINKTYPE_PKTAP as it is on
|
|
* other OSes, to LINKTYPE_PKTAP, so files written with
|
|
* this version of libpcap for a DLT_PKTAP capture have a link-
|
|
* layer header type of LINKTYPE_PKTAP.
|
|
*
|
|
* However, files written on OS X Mavericks for a DLT_PKTAP
|
|
* capture have a link-layer header type of LINKTYPE_USER2.
|
|
* If we don't have a printer for DLT_USER2, and type is
|
|
* DLT_USER2, we look up the printer for DLT_PKTAP and use
|
|
* that.
|
|
*/
|
|
if (type == DLT_USER2) {
|
|
for (p = printers; p->f; ++p)
|
|
if (DLT_PKTAP == p->type)
|
|
return p->f;
|
|
}
|
|
#endif
|
|
|
|
return NULL;
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
int
|
|
has_printer(int type)
|
|
{
|
|
return (lookup_printer(type) != NULL);
|
|
}
|
|
|
|
if_printer
|
|
get_if_printer(netdissect_options *ndo, int type)
|
|
{
|
|
const char *dltname;
|
|
if_printer printer;
|
|
|
|
printer = lookup_printer(type);
|
|
if (printer == NULL) {
|
|
dltname = pcap_datalink_val_to_name(type);
|
|
if (dltname != NULL)
|
|
(*ndo->ndo_error)(ndo,
|
|
"packet printing is not supported for link type %s: use -w",
|
|
dltname);
|
|
else
|
|
(*ndo->ndo_error)(ndo,
|
|
"packet printing is not supported for link type %d: use -w", type);
|
|
}
|
|
return printer;
|
|
}
|
|
|
|
void
|
|
pretty_print_packet(netdissect_options *ndo, const struct pcap_pkthdr *h,
|
|
const u_char *sp, u_int packets_captured)
|
|
{
|
|
u_int hdrlen;
|
|
|
|
if(ndo->ndo_packet_number)
|
|
ND_PRINT((ndo, "%5u ", packets_captured));
|
|
|
|
ts_print(ndo, &h->ts);
|
|
|
|
/*
|
|
* Printers must check that they're not walking off the end of
|
|
* the packet.
|
|
* Rather than pass it all the way down, we set this member
|
|
* of the netdissect_options structure.
|
|
*/
|
|
ndo->ndo_snapend = sp + h->caplen;
|
|
|
|
hdrlen = (ndo->ndo_if_printer)(ndo, h, sp);
|
|
|
|
/*
|
|
* Restore the original snapend, as a printer might have
|
|
* changed it.
|
|
*/
|
|
ndo->ndo_snapend = sp + h->caplen;
|
|
if (ndo->ndo_Xflag) {
|
|
/*
|
|
* Print the raw packet data in hex and ASCII.
|
|
*/
|
|
if (ndo->ndo_Xflag > 1) {
|
|
/*
|
|
* Include the link-layer header.
|
|
*/
|
|
hex_and_ascii_print(ndo, "\n\t", sp, h->caplen);
|
|
} else {
|
|
/*
|
|
* Don't include the link-layer header - and if
|
|
* we have nothing past the link-layer header,
|
|
* print nothing.
|
|
*/
|
|
if (h->caplen > hdrlen)
|
|
hex_and_ascii_print(ndo, "\n\t", sp + hdrlen,
|
|
h->caplen - hdrlen);
|
|
}
|
|
} else if (ndo->ndo_xflag) {
|
|
/*
|
|
* Print the raw packet data in hex.
|
|
*/
|
|
if (ndo->ndo_xflag > 1) {
|
|
/*
|
|
* Include the link-layer header.
|
|
*/
|
|
hex_print(ndo, "\n\t", sp, h->caplen);
|
|
} else {
|
|
/*
|
|
* Don't include the link-layer header - and if
|
|
* we have nothing past the link-layer header,
|
|
* print nothing.
|
|
*/
|
|
if (h->caplen > hdrlen)
|
|
hex_print(ndo, "\n\t", sp + hdrlen,
|
|
h->caplen - hdrlen);
|
|
}
|
|
} else if (ndo->ndo_Aflag) {
|
|
/*
|
|
* Print the raw packet data in ASCII.
|
|
*/
|
|
if (ndo->ndo_Aflag > 1) {
|
|
/*
|
|
* Include the link-layer header.
|
|
*/
|
|
ascii_print(ndo, sp, h->caplen);
|
|
} else {
|
|
/*
|
|
* Don't include the link-layer header - and if
|
|
* we have nothing past the link-layer header,
|
|
* print nothing.
|
|
*/
|
|
if (h->caplen > hdrlen)
|
|
ascii_print(ndo, sp + hdrlen, h->caplen - hdrlen);
|
|
}
|
|
}
|
|
|
|
ND_PRINT((ndo, "\n"));
|
|
}
|
|
|
|
/*
|
|
* By default, print the specified data out in hex and ASCII.
|
|
*/
|
|
static void
|
|
ndo_default_print(netdissect_options *ndo, const u_char *bp, u_int length)
|
|
{
|
|
hex_and_ascii_print(ndo, "\n\t", bp, length); /* pass on lf and indentation string */
|
|
}
|
|
|
|
/* VARARGS */
|
|
static void
|
|
ndo_error(netdissect_options *ndo, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
if(ndo->program_name)
|
|
(void)fprintf(stderr, "%s: ", ndo->program_name);
|
|
va_start(ap, fmt);
|
|
(void)vfprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
if (*fmt) {
|
|
fmt += strlen(fmt);
|
|
if (fmt[-1] != '\n')
|
|
(void)fputc('\n', stderr);
|
|
}
|
|
nd_cleanup();
|
|
exit(1);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
/* VARARGS */
|
|
static void
|
|
ndo_warning(netdissect_options *ndo, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
if(ndo->program_name)
|
|
(void)fprintf(stderr, "%s: ", ndo->program_name);
|
|
(void)fprintf(stderr, "WARNING: ");
|
|
va_start(ap, fmt);
|
|
(void)vfprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
if (*fmt) {
|
|
fmt += strlen(fmt);
|
|
if (fmt[-1] != '\n')
|
|
(void)fputc('\n', stderr);
|
|
}
|
|
}
|
|
|
|
static int
|
|
ndo_printf(netdissect_options *ndo, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
int ret;
|
|
|
|
va_start(args, fmt);
|
|
ret = vfprintf(stdout, fmt, args);
|
|
va_end(args);
|
|
|
|
if (ret < 0)
|
|
ndo_error(ndo, "Unable to write output: %s", pcap_strerror(errno));
|
|
return (ret);
|
|
}
|
|
|
|
void
|
|
ndo_set_function_pointers(netdissect_options *ndo)
|
|
{
|
|
ndo->ndo_default_print=ndo_default_print;
|
|
ndo->ndo_printf=ndo_printf;
|
|
ndo->ndo_error=ndo_error;
|
|
ndo->ndo_warning=ndo_warning;
|
|
}
|
|
/*
|
|
* Local Variables:
|
|
* c-style: whitesmith
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|