X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/9d046ee0503d4c8cbfcb200c88986de876f6cae7..5ef0bcb5edd748de9d9af13c40da0395dfdd94e8:/print.c

diff --git a/print.c b/print.c
index 71502c2d..6e4cf893 100644
--- a/print.c
+++ b/print.c
@@ -42,57 +42,28 @@
 
 #include "pcap-missing.h"
 
-struct uint_printer {
-	uint_if_printer f;
+struct printer {
+	if_printer f;
 	int type;
 };
 
-struct void_printer {
-	void_if_printer f;
-	int type;
-};
-
-static const struct uint_printer uint_printers[] = {
-	{ ether_if_print,	DLT_EN10MB },
-#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_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
-#ifdef DLT_NFLOG
-	{ 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
-#ifdef DLT_LANE8023
-	{ lane_if_print,	DLT_LANE8023 },
+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
-#ifdef DLT_IPOIB
-	{ ipoib_if_print,       DLT_IPOIB },
+	{ 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 },
@@ -100,36 +71,55 @@ static const struct uint_printer uint_printers[] = {
 #ifdef DLT_HDLC
 	{ chdlc_if_print,	DLT_HDLC },
 #endif
-#ifdef DLT_PPP_ETHER
-	{ pppoe_if_print,	DLT_PPP_ETHER },
+#ifdef DLT_ATM_CLIP
+	{ cip_if_print,		DLT_ATM_CLIP },
 #endif
-#if defined(DLT_PFLOG) && defined(HAVE_NET_IF_PFLOG_H)
-	{ pflog_if_print,	DLT_PFLOG },
+#ifdef DLT_CIP
+	{ cip_if_print,		DLT_CIP },
 #endif
-	{ token_if_print,	DLT_IEEE802 },
-	{ fddi_if_print,	DLT_FDDI },
-#ifdef DLT_LINUX_SLL
-	{ sll_if_print,		DLT_LINUX_SLL },
+#ifdef DLT_DSA_TAG_DSA
+	{ dsa_if_print,		DLT_DSA_TAG_DSA },
 #endif
-#ifdef DLT_LINUX_SLL2
-	{ sll2_if_print,	DLT_LINUX_SLL2 },
+#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_MFR
-	{ mfr_if_print,		DLT_MFR },
+#ifdef DLT_IEEE802_11
+	{ ieee802_11_if_print,	DLT_IEEE802_11},
 #endif
-	{ atm_if_print,		DLT_ATM_RFC1483 },
-	{ sl_if_print,		DLT_SLIP },
-#ifdef DLT_SLIP_BSDOS
-	{ sl_bsdos_if_print,	DLT_SLIP_BSDOS },
+#ifdef DLT_IEEE802_11_RADIO_AVS
+	{ ieee802_11_radio_avs_if_print, DLT_IEEE802_11_RADIO_AVS },
 #endif
-#ifdef DLT_LTALK
-	{ ltalk_if_print,	DLT_LTALK },
+#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 },
@@ -137,6 +127,21 @@ static const struct uint_printer uint_printers[] = {
 #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
@@ -146,54 +151,48 @@ static const struct uint_printer uint_printers[] = {
 #ifdef DLT_JUNIPER_MLPPP
 	{ juniper_mlppp_if_print, DLT_JUNIPER_MLPPP },
 #endif
-#ifdef DLT_JUNIPER_PPPOE
-	{ juniper_pppoe_if_print, DLT_JUNIPER_PPPOE },
+#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_GGSN
-	{ juniper_ggsn_if_print, DLT_JUNIPER_GGSN },
-#endif
-#ifdef DLT_JUNIPER_ES
-	{ juniper_es_if_print,	DLT_JUNIPER_ES },
-#endif
-#ifdef DLT_JUNIPER_MONITOR
-	{ juniper_monitor_if_print, DLT_JUNIPER_MONITOR },
+#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_JUNIPER_ETHER
-	{ juniper_ether_if_print,	DLT_JUNIPER_ETHER },
-#endif
-#ifdef DLT_JUNIPER_PPP
-	{ juniper_ppp_if_print,	DLT_JUNIPER_PPP },
+#ifdef DLT_LTALK
+	{ ltalk_if_print,	DLT_LTALK },
 #endif
-#ifdef DLT_JUNIPER_FRELAY
-	{ juniper_frelay_if_print,	DLT_JUNIPER_FRELAY },
+#ifdef DLT_MFR
+	{ mfr_if_print,		DLT_MFR },
 #endif
-#ifdef DLT_JUNIPER_CHDLC
-	{ juniper_chdlc_if_print,	DLT_JUNIPER_CHDLC },
+#ifdef DLT_NETANALYZER
+	{ netanalyzer_if_print, DLT_NETANALYZER },
 #endif
-#ifdef DLT_PKTAP
-	{ pktap_if_print,	DLT_PKTAP },
+#ifdef DLT_NETANALYZER_TRANSPARENT
+	{ netanalyzer_transparent_if_print, DLT_NETANALYZER_TRANSPARENT },
 #endif
-#ifdef DLT_IEEE802_11_RADIO
-	{ ieee802_11_radio_if_print,	DLT_IEEE802_11_RADIO },
+#ifdef DLT_NFLOG
+	{ nflog_if_print,	DLT_NFLOG},
 #endif
-#ifdef DLT_IEEE802_11
-	{ ieee802_11_if_print,	DLT_IEEE802_11},
+	{ null_if_print,	DLT_NULL },
+#ifdef DLT_LOOP
+	{ null_if_print,	DLT_LOOP },
 #endif
-#ifdef DLT_IEEE802_11_RADIO_AVS
-	{ ieee802_11_radio_avs_if_print,	DLT_IEEE802_11_RADIO_AVS },
+#if defined(DLT_PFLOG) && defined(HAVE_NET_IF_PFLOG_H)
+	{ pflog_if_print,	DLT_PFLOG },
 #endif
-#ifdef DLT_PRISM_HEADER
-	{ prism_if_print,	DLT_PRISM_HEADER },
+#ifdef DLT_PKTAP
+	{ pktap_if_print,	DLT_PKTAP },
 #endif
-	{ ppp_if_print,		DLT_PPP },
-#ifdef DLT_PPP_WITHDIRECTION
-	{ ppp_if_print,		DLT_PPP_WITHDIRECTION },
+#ifdef DLT_PPI
+	{ ppi_if_print,		DLT_PPI },
 #endif
 #ifdef DLT_PPP_BSDOS
 	{ ppp_bsdos_if_print,	DLT_PPP_BSDOS },
@@ -201,40 +200,15 @@ static const struct uint_printer uint_printers[] = {
 #ifdef DLT_PPP_SERIAL
 	{ ppp_hdlc_if_print,	DLT_PPP_SERIAL },
 #endif
-#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_VSOCK
-	{ vsock_if_print,	DLT_VSOCK },
-#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
-	{ NULL,			0 },
-};
-
-static const struct void_printer void_printers[] = {
-#ifdef DLT_APPLE_IP_OVER_IEEE1394
-	{ ap1394_if_print,	DLT_APPLE_IP_OVER_IEEE1394 },
-#endif
-#ifdef DLT_BLUETOOTH_HCI_H4_WITH_PHDR
-	{ bt_if_print,		DLT_BLUETOOTH_HCI_H4_WITH_PHDR},
-#endif
-#ifdef DLT_ENC
-	{ enc_if_print,		DLT_ENC },
+	{ ppp_if_print,		DLT_PPP },
+#ifdef DLT_PPP_PPPD
+	{ ppp_if_print,		DLT_PPP_PPPD },
 #endif
-#ifdef DLT_IPNET
-	{ ipnet_if_print,	DLT_IPNET },
+#ifdef DLT_PPP_ETHER
+	{ pppoe_if_print,	DLT_PPP_ETHER },
 #endif
-	{ null_if_print,	DLT_NULL },
-#ifdef DLT_LOOP
-	{ null_if_print,	DLT_LOOP },
+#ifdef DLT_PRISM_HEADER
+	{ prism_if_print,	DLT_PRISM_HEADER },
 #endif
 	{ raw_if_print,		DLT_RAW },
 #ifdef DLT_IPV4
@@ -243,18 +217,32 @@ static const struct void_printer void_printers[] = {
 #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 },
 };
 
@@ -281,49 +269,12 @@ init_print(netdissect_options *ndo, uint32_t localnet, uint32_t mask)
 	init_checksum();
 }
 
-uint_if_printer
-lookup_uint_printer(int type)
-{
-	const struct uint_printer *p;
-
-	for (p = uint_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 = uint_printers; p->f; ++p)
-			if (DLT_PKTAP == p->type)
-				return p->f;
-	}
-#endif
-
-	return NULL;
-	/* NOTREACHED */
-}
-
-void_if_printer
-lookup_void_printer(int type)
+if_printer
+lookup_printer(int type)
 {
-	const struct void_printer *p;
+	const struct printer *p;
 
-	for (p = void_printers; p->f; ++p)
+	for (p = printers; p->f; ++p)
 		if (type == p->type)
 			return p->f;
 
@@ -345,7 +296,7 @@ lookup_void_printer(int type)
 	 * that.
 	 */
 	if (type == DLT_USER2) {
-		for (p = void_printers; p->f; ++p)
+		for (p = printers; p->f; ++p)
 			if (DLT_PKTAP == p->type)
 				return p->f;
 	}
@@ -355,44 +306,20 @@ lookup_void_printer(int type)
 	/* NOTREACHED */
 }
 
-if_printer_t
-lookup_printer(netdissect_options *ndo, int type)
-{
-	if_printer_t printer;
-
-	printer.void_printer = lookup_void_printer(type);
-	ndo->ndo_void_printer = TRUE;
-	if (printer.void_printer == NULL) {
-		printer.uint_printer = lookup_uint_printer(type);
-		ndo->ndo_void_printer = FALSE;
-	}
-	return printer;
-}
-
 int
 has_printer(int type)
 {
-	return (lookup_void_printer(type) != NULL ||
-		lookup_uint_printer(type) != NULL);
+	return (lookup_printer(type) != NULL);
 }
 
-if_printer_t
-get_if_printer(netdissect_options *ndo, int type)
+if_printer
+get_if_printer(int type)
 {
-	const char *dltname;
-	if_printer_t printer;
-
-	printer = lookup_printer(ndo, type);
-	if (printer.printer == NULL) {
-		dltname = pcap_datalink_val_to_name(type);
-		if (dltname != NULL)
-			(*ndo->ndo_error)(ndo, S_ERR_ND_NO_PRINTER,
-					  "packet printing is not supported for link type %s: use -w",
-					  dltname);
-		else
-			(*ndo->ndo_error)(ndo, S_ERR_ND_NO_PRINTER,
-					  "packet printing is not supported for link type %d: use -w", type);
-	}
+	if_printer printer;
+
+	printer = lookup_printer(type);
+	if (printer == NULL)
+		printer = unsupported_if_print;
 	return printer;
 }
 
@@ -400,7 +327,7 @@ void
 pretty_print_packet(netdissect_options *ndo, const struct pcap_pkthdr *h,
 		    const u_char *sp, u_int packets_captured)
 {
-	u_int hdrlen;
+	u_int hdrlen = 0;
 	int invalid_header = 0;
 
 	if (ndo->ndo_packet_number)
@@ -470,19 +397,15 @@ pretty_print_packet(netdissect_options *ndo, const struct pcap_pkthdr *h,
 	ndo->ndo_snapend = sp + h->caplen;
 
 	ndo->ndo_protocol = "";
-	ndo->ndo_ll_header_length = 0;
+	ndo->ndo_ll_hdr_len = 0;
 	if (setjmp(ndo->ndo_truncated) == 0) {
 		/* Print the packet. */
-		if (ndo->ndo_void_printer == TRUE) {
-			(ndo->ndo_if_printer.void_printer)(ndo, h, sp);
-			hdrlen = ndo->ndo_ll_header_length;
-		} else
-			hdrlen = (ndo->ndo_if_printer.uint_printer)(ndo, h, sp);
+		(ndo->ndo_if_printer)(ndo, h, sp);
 	} else {
 		/* A printer quit because the packet was truncated; report it */
-		ND_PRINT(" [|%s]", ndo->ndo_protocol);
-		hdrlen = ndo->ndo_ll_header_length;
+		nd_print_trunc(ndo);
 	}
+	hdrlen = ndo->ndo_ll_hdr_len;
 
 	/*
 	 * Empty the stack of packet information, freeing all pushed buffers;