Adding upstream version 4.99.4.upstream/4.99.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 573 insertions, 0 deletions

diff --git a/print.c b/print.c
new file mode 100644
index 0000000..9c0ab86
--- /dev/null
+++ b/print.c
@@ -0,0 +1,573 @@
+/*
+ * 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 <setjmp.h>
+
+#include "netdissect-stdinc.h"
+
+#include "netdissect.h"
+#include "addrtoname.h"
+#include "print.h"
+#include "netdissect-alloc.h"
+
+#include "pcap-missing.h"
+
+struct printer {
+	if_printer f;
+	int type;
+};
+
+static const struct printer printers[] = {
+#ifdef DLT_APPLE_IP_OVER_IEEE1394
+	{ ap1394_if_print,	DLT_APPLE_IP_OVER_IEEE1394 },
+#endif
+	{ arcnet_if_print,	DLT_ARCNET },
+#ifdef DLT_ARCNET_LINUX
+	{ arcnet_linux_if_print, DLT_ARCNET_LINUX },
+#endif
+	{ atm_if_print,		DLT_ATM_RFC1483 },
+#ifdef DLT_DSA_TAG_BRCM
+	{ brcm_tag_if_print,	DLT_DSA_TAG_BRCM },
+#endif
+#ifdef DLT_DSA_TAG_BRCM_PREPEND
+	{ brcm_tag_prepend_if_print, DLT_DSA_TAG_BRCM_PREPEND },
+#endif
+#ifdef DLT_BLUETOOTH_HCI_H4_WITH_PHDR
+	{ bt_if_print,		DLT_BLUETOOTH_HCI_H4_WITH_PHDR},
+#endif
+#ifdef DLT_C_HDLC
+	{ chdlc_if_print,	DLT_C_HDLC },
+#endif
+#ifdef DLT_HDLC
+	{ chdlc_if_print,	DLT_HDLC },
+#endif
+#ifdef DLT_ATM_CLIP
+	{ cip_if_print,		DLT_ATM_CLIP },
+#endif
+#ifdef DLT_CIP
+	{ cip_if_print,		DLT_CIP },
+#endif
+#ifdef DLT_DSA_TAG_DSA
+	{ dsa_if_print,		DLT_DSA_TAG_DSA },
+#endif
+#ifdef DLT_DSA_TAG_EDSA
+	{ edsa_if_print,	DLT_DSA_TAG_EDSA },
+#endif
+#ifdef DLT_ENC
+	{ enc_if_print,		DLT_ENC },
+#endif
+	{ ether_if_print,	DLT_EN10MB },
+	{ fddi_if_print,	DLT_FDDI },
+#ifdef DLT_FR
+	{ fr_if_print,		DLT_FR },
+#endif
+#ifdef DLT_FRELAY
+	{ fr_if_print,		DLT_FRELAY },
+#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_IEEE802_11_RADIO
+	{ ieee802_11_radio_if_print,	DLT_IEEE802_11_RADIO },
+#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_IEEE802_15_4_TAP
+	{ ieee802_15_4_tap_if_print, DLT_IEEE802_15_4_TAP },
+#endif
+#ifdef DLT_IP_OVER_FC
+	{ ipfc_if_print,	DLT_IP_OVER_FC },
+#endif
+#ifdef DLT_IPNET
+	{ ipnet_if_print,	DLT_IPNET },
+#endif
+#ifdef DLT_IPOIB
+	{ ipoib_if_print,       DLT_IPOIB },
+#endif
+#ifdef DLT_JUNIPER_ATM1
+	{ juniper_atm1_if_print, DLT_JUNIPER_ATM1 },
+#endif
+#ifdef DLT_JUNIPER_ATM2
+	{ juniper_atm2_if_print, DLT_JUNIPER_ATM2 },
+#endif
+#ifdef DLT_JUNIPER_CHDLC
+	{ juniper_chdlc_if_print,	DLT_JUNIPER_CHDLC },
+#endif
+#ifdef DLT_JUNIPER_ES
+	{ juniper_es_if_print,	DLT_JUNIPER_ES },
+#endif
+#ifdef DLT_JUNIPER_ETHER
+	{ juniper_ether_if_print,	DLT_JUNIPER_ETHER },
+#endif
+#ifdef DLT_JUNIPER_FRELAY
+	{ juniper_frelay_if_print,	DLT_JUNIPER_FRELAY },
+#endif
+#ifdef DLT_JUNIPER_GGSN
+	{ juniper_ggsn_if_print, DLT_JUNIPER_GGSN },
+#endif
+#ifdef DLT_JUNIPER_MFR
+	{ juniper_mfr_if_print,	DLT_JUNIPER_MFR },
+#endif
+#ifdef DLT_JUNIPER_MLFR
+	{ juniper_mlfr_if_print, DLT_JUNIPER_MLFR },
+#endif
+#ifdef DLT_JUNIPER_MLPPP
+	{ juniper_mlppp_if_print, DLT_JUNIPER_MLPPP },
+#endif
+#ifdef DLT_JUNIPER_MONITOR
+	{ juniper_monitor_if_print, DLT_JUNIPER_MONITOR },
+#endif
+#ifdef DLT_JUNIPER_PPP
+	{ juniper_ppp_if_print,	DLT_JUNIPER_PPP },
+#endif
+#ifdef DLT_JUNIPER_PPPOE_ATM
+	{ juniper_pppoe_atm_if_print, DLT_JUNIPER_PPPOE_ATM },
+#endif
+#ifdef DLT_JUNIPER_PPPOE
+	{ juniper_pppoe_if_print, DLT_JUNIPER_PPPOE },
+#endif
+#ifdef DLT_JUNIPER_SERVICES
+	{ juniper_services_if_print, DLT_JUNIPER_SERVICES },
+#endif
+#ifdef DLT_LTALK
+	{ ltalk_if_print,	DLT_LTALK },
+#endif
+#ifdef DLT_MFR
+	{ mfr_if_print,		DLT_MFR },
+#endif
+#ifdef DLT_NETANALYZER
+	{ netanalyzer_if_print, DLT_NETANALYZER },
+#endif
+#ifdef DLT_NETANALYZER_TRANSPARENT
+	{ netanalyzer_transparent_if_print, DLT_NETANALYZER_TRANSPARENT },
+#endif
+#ifdef DLT_NFLOG
+	{ nflog_if_print,	DLT_NFLOG},
+#endif
+	{ null_if_print,	DLT_NULL },
+#ifdef DLT_LOOP
+	{ null_if_print,	DLT_LOOP },
+#endif
+#ifdef DLT_PFLOG
+	{ pflog_if_print,	DLT_PFLOG },
+#endif
+#ifdef DLT_PKTAP
+	{ pktap_if_print,	DLT_PKTAP },
+#endif
+#ifdef DLT_PPI
+	{ ppi_if_print,		DLT_PPI },
+#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
+	{ ppp_if_print,		DLT_PPP },
+#ifdef DLT_PPP_PPPD
+	{ ppp_if_print,		DLT_PPP_PPPD },
+#endif
+#ifdef DLT_PPP_ETHER
+	{ pppoe_if_print,	DLT_PPP_ETHER },
+#endif
+#ifdef DLT_PRISM_HEADER
+	{ prism_if_print,	DLT_PRISM_HEADER },
+#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 DLT_SLIP_BSDOS
+	{ sl_bsdos_if_print,	DLT_SLIP_BSDOS },
+#endif
+	{ sl_if_print,		DLT_SLIP },
+#ifdef DLT_LINUX_SLL
+	{ sll_if_print,		DLT_LINUX_SLL },
+#endif
+#ifdef DLT_LINUX_SLL2
+	{ sll2_if_print,	DLT_LINUX_SLL2 },
+#endif
+#ifdef DLT_SUNATM
+	{ sunatm_if_print,	DLT_SUNATM },
+#endif
+#ifdef DLT_SYMANTEC_FIREWALL
+	{ symantec_if_print,	DLT_SYMANTEC_FIREWALL },
+#endif
+	{ token_if_print,	DLT_IEEE802 },
+#ifdef DLT_USB_LINUX
+	{ usb_linux_48_byte_if_print, DLT_USB_LINUX},
+#endif /* DLT_USB_LINUX */
+#ifdef DLT_USB_LINUX_MMAPPED
+	{ usb_linux_64_byte_if_print, DLT_USB_LINUX_MMAPPED},
+#endif /* DLT_USB_LINUX_MMAPPED */
+#ifdef DLT_VSOCK
+	{ vsock_if_print,	DLT_VSOCK },
+#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,
+		     status_exit_codes_t status,
+		     FORMAT_STRING(const char *fmt), ...)
+		     PRINTFLIKE(3, 4);
+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)
+{
+
+	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(int type)
+{
+	if_printer printer;
+
+	printer = lookup_printer(type);
+	if (printer == NULL)
+		printer = unsupported_if_print;
+	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 = 0;
+	int invalid_header = 0;
+
+	if (ndo->ndo_packet_number)
+		ND_PRINT("%5u  ", packets_captured);
+
+	/* Sanity checks on packet length / capture length */
+	if (h->caplen == 0) {
+		invalid_header = 1;
+		ND_PRINT("[Invalid header: caplen==0");
+	}
+	if (h->len == 0) {
+		if (!invalid_header) {
+			invalid_header = 1;
+			ND_PRINT("[Invalid header:");
+		} else
+			ND_PRINT(",");
+		ND_PRINT(" len==0");
+	} else if (h->len < h->caplen) {
+		if (!invalid_header) {
+			invalid_header = 1;
+			ND_PRINT("[Invalid header:");
+		} else
+			ND_PRINT(",");
+		ND_PRINT(" len(%u) < caplen(%u)", h->len, h->caplen);
+	}
+	if (h->caplen > MAXIMUM_SNAPLEN) {
+		if (!invalid_header) {
+			invalid_header = 1;
+			ND_PRINT("[Invalid header:");
+		} else
+			ND_PRINT(",");
+		ND_PRINT(" caplen(%u) > %u", h->caplen, MAXIMUM_SNAPLEN);
+	}
+	if (h->len > MAXIMUM_SNAPLEN) {
+		if (!invalid_header) {
+			invalid_header = 1;
+			ND_PRINT("[Invalid header:");
+		} else
+			ND_PRINT(",");
+		ND_PRINT(" len(%u) > %u", h->len, MAXIMUM_SNAPLEN);
+	}
+	if (invalid_header) {
+		ND_PRINT("]\n");
+		return;
+	}
+
+	/*
+	 * At this point:
+	 *   capture length != 0,
+	 *   packet length != 0,
+	 *   capture length <= MAXIMUM_SNAPLEN,
+	 *   packet length <= MAXIMUM_SNAPLEN,
+	 *   packet length >= capture length.
+	 *
+	 * Currently, there is no D-Bus printer, thus no need for
+	 * bigger lengths.
+	 */
+
+	/*
+	 * The header /usr/include/pcap/pcap.h in OpenBSD declares h->ts as
+	 * struct bpf_timeval, not struct timeval. The former comes from
+	 * /usr/include/net/bpf.h and uses 32-bit unsigned types instead of
+	 * the types used in struct timeval.
+	 */
+	struct timeval tvbuf;
+	tvbuf.tv_sec = h->ts.tv_sec;
+	tvbuf.tv_usec = h->ts.tv_usec;
+	ts_print(ndo, &tvbuf);
+
+	/*
+	 * 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;
+	ndo->ndo_packetp = sp;
+
+	ndo->ndo_protocol = "";
+	ndo->ndo_ll_hdr_len = 0;
+	switch (setjmp(ndo->ndo_early_end)) {
+	case 0:
+		/* Print the packet. */
+		(ndo->ndo_if_printer)(ndo, h, sp);
+		break;
+	case ND_TRUNCATED:
+		/* A printer quit because the packet was truncated; report it */
+		nd_print_trunc(ndo);
+		/* Print the full packet */
+		ndo->ndo_ll_hdr_len = 0;
+		break;
+	}
+	hdrlen = ndo->ndo_ll_hdr_len;
+
+	/*
+	 * Empty the stack of packet information, freeing all pushed buffers;
+	 * if we got here by a printer quitting, we need to release anything
+	 * that didn't get released because we longjmped out of the code
+	 * before it popped the packet information.
+	 */
+	nd_pop_all_packet_info(ndo);
+
+	/*
+	 * 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("\n");
+	nd_free_all(ndo);
+}
+
+/*
+ * 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, status_exit_codes_t status,
+	  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(status);
+	/* 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, S_ERR_ND_WRITE_FILE,
+			  "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;
+}