*/
-#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"
struct printer {
if_printer f;
};
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 },
+ { atm_if_print, DLT_ATM_RFC1483 },
+#ifdef DLT_DSA_TAG_BRCM
+ { brcm_tag_if_print, DLT_DSA_TAG_BRCM },
#endif
-#ifdef DLT_IPV6
- { raw_if_print, DLT_IPV6 },
+#ifdef DLT_DSA_TAG_BRCM_PREPEND
+ { brcm_tag_prepend_if_print, DLT_DSA_TAG_BRCM_PREPEND },
#endif
-#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_SYMANTEC_FIREWALL
- { symantec_if_print, DLT_SYMANTEC_FIREWALL },
+#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 },
#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_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 },
-#ifdef DLT_SUNATM
- { sunatm_if_print, DLT_SUNATM },
+#ifdef DLT_IEEE802_11_RADIO_AVS
+ { ieee802_11_radio_avs_if_print, DLT_IEEE802_11_RADIO_AVS },
#endif
-#ifdef DLT_ENC
- { enc_if_print, DLT_ENC },
+#ifdef DLT_IEEE802_11_RADIO
+ { ieee802_11_radio_if_print, DLT_IEEE802_11_RADIO },
#endif
- { sl_if_print, DLT_SLIP },
-#ifdef DLT_SLIP_BSDOS
- { sl_bsdos_if_print, DLT_SLIP_BSDOS },
+#ifdef DLT_IEEE802_15_4
+ { ieee802_15_4_if_print, DLT_IEEE802_15_4 },
#endif
-#ifdef DLT_LTALK
- { ltalk_if_print, DLT_LTALK },
+#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 },
#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_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 },
+#ifdef DLT_LTALK
+ { ltalk_if_print, DLT_LTALK },
#endif
-#ifdef DLT_JUNIPER_PPP
- { juniper_ppp_if_print, DLT_JUNIPER_PPP },
+#ifdef DLT_MFR
+ { mfr_if_print, DLT_MFR },
#endif
-#ifdef DLT_JUNIPER_FRELAY
- { juniper_frelay_if_print, DLT_JUNIPER_FRELAY },
+#ifdef DLT_NETANALYZER
+ { netanalyzer_if_print, DLT_NETANALYZER },
#endif
-#ifdef DLT_JUNIPER_CHDLC
- { juniper_chdlc_if_print, DLT_JUNIPER_CHDLC },
+#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_IEEE802_11_RADIO
- { ieee802_11_radio_if_print, DLT_IEEE802_11_RADIO },
+#ifdef DLT_PPI
+ { ppi_if_print, DLT_PPI },
#endif
-#ifdef DLT_IEEE802_11
- { ieee802_11_if_print, DLT_IEEE802_11},
+#ifdef DLT_PPP_SERIAL
+ { ppp_hdlc_if_print, DLT_PPP_SERIAL },
#endif
-#ifdef DLT_IEEE802_11_RADIO_AVS
- { ieee802_11_radio_avs_if_print, DLT_IEEE802_11_RADIO_AVS },
+ { 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
- { ppp_if_print, DLT_PPP },
-#ifdef DLT_PPP_WITHDIRECTION
- { ppp_if_print, DLT_PPP_WITHDIRECTION },
+ { raw_if_print, DLT_RAW },
+#ifdef DLT_IPV4
+ { raw_if_print, DLT_IPV4 },
#endif
-#ifdef DLT_PPP_BSDOS
- { ppp_bsdos_if_print, DLT_PPP_BSDOS },
+#ifdef DLT_IPV6
+ { raw_if_print, DLT_IPV6 },
#endif
-#ifdef DLT_PPP_SERIAL
- { ppp_hdlc_if_print, DLT_PPP_SERIAL },
+#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
- { NULL, 0 },
+#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,
- 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);
-
+// Both localnet and mask are in network byte order.
void
-init_print(netdissect_options *ndo, uint32_t localnet, uint32_t mask,
- uint32_t timezone_offset)
+init_print(netdissect_options *ndo, uint32_t localnet, uint32_t mask)
{
-
- thiszone = timezone_offset;
init_addrtoname(ndo, localnet, mask);
- init_checksum();
}
if_printer
}
if_printer
-get_if_printer(netdissect_options *ndo, int type)
+get_if_printer(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);
- }
+ if (printer == NULL)
+ printer = unsupported_if_print;
return printer;
}
+#ifdef ENABLE_INSTRUMENT_FUNCTIONS
+extern int profile_func_level;
+static int pretty_print_packet_level = -1;
+#endif
+
void
pretty_print_packet(netdissect_options *ndo, const struct pcap_pkthdr *h,
- const u_char *sp, u_int packets_captured)
+ const u_char *sp, u_int packets_captured)
{
- u_int hdrlen;
+ u_int hdrlen = 0;
+ int invalid_header = 0;
- if(ndo->ndo_packet_number)
+ if (ndo->ndo_print_sampling && packets_captured % ndo->ndo_print_sampling != 0)
+ return;
+
+#ifdef ENABLE_INSTRUMENT_FUNCTIONS
+ if (pretty_print_packet_level == -1)
+ pretty_print_packet_level = profile_func_level;
+#endif
+
+ if (ndo->ndo_packet_number)
ND_PRINT("%5u ", packets_captured);
+ if (ndo->ndo_lengths)
+ ND_PRINT("caplen %u len %u ", h->caplen, h->len);
+
/* Sanity checks on packet length / capture length */
- ndo->ndo_invalid_header = 0;
- if(h->caplen == 0) {
- ndo->ndo_invalid_header = 1;
+ if (h->caplen == 0) {
+ invalid_header = 1;
ND_PRINT("[Invalid header: caplen==0");
}
if (h->len == 0) {
- if (!ndo->ndo_invalid_header) {
- ndo->ndo_invalid_header = 1;
+ if (!invalid_header) {
+ invalid_header = 1;
ND_PRINT("[Invalid header:");
} else
ND_PRINT(",");
ND_PRINT(" len==0");
} else if (h->len < h->caplen) {
- if (!ndo->ndo_invalid_header) {
- ndo->ndo_invalid_header = 1;
+ if (!invalid_header) {
+ invalid_header = 1;
ND_PRINT("[Invalid header:");
} else
ND_PRINT(",");
ND_PRINT(" len(%u) < caplen(%u)", h->len, h->caplen);
}
- if (ndo->ndo_invalid_header) {
+ 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;
}
- ts_print(ndo, &h->ts);
+ /*
+ * 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
* 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;
+#ifdef ENABLE_INSTRUMENT_FUNCTIONS
+ /* truncation => reassignment */
+ profile_func_level = pretty_print_packet_level;
+#endif
+ break;
+ }
+ hdrlen = ndo->ndo_ll_hdr_len;
- hdrlen = (ndo->ndo_if_printer)(ndo, h, sp);
+ /*
+ * 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.
+ * Restore the originals snapend and packetp, as a printer
+ * might have changed them.
+ *
+ * XXX - nd_pop_all_packet_info() should have restored the
+ * original values, but, just in case....
*/
ndo->ndo_snapend = sp + h->caplen;
+ ndo->ndo_packetp = sp;
if (ndo->ndo_Xflag) {
/*
* Print the raw packet data in hex and ASCII.
*/
if (h->caplen > hdrlen)
hex_and_ascii_print(ndo, "\n\t", sp + hdrlen,
- h->caplen - hdrlen);
+ h->caplen - hdrlen);
}
} else if (ndo->ndo_xflag) {
/*
/*
* Include the link-layer header.
*/
- hex_print(ndo, "\n\t", sp, h->caplen);
+ hex_print(ndo, "\n\t", sp, h->caplen);
} else {
/*
* Don't include the link-layer header - and if
*/
if (h->caplen > hdrlen)
hex_print(ndo, "\n\t", sp + hdrlen,
- h->caplen - hdrlen);
+ h->caplen - hdrlen);
}
} else if (ndo->ndo_Aflag) {
/*
}
ND_PRINT("\n");
+ nd_free_all(ndo);
}
/*
}
/* VARARGS */
-static void
-ndo_error(netdissect_options *ndo, const char *fmt, ...)
+static void NORETURN PRINTFLIKE(3, 4)
+ndo_error(netdissect_options *ndo, status_exit_codes_t status,
+ FORMAT_STRING(const char *fmt), ...)
{
va_list ap;
- if(ndo->program_name)
+ if (ndo->program_name)
(void)fprintf(stderr, "%s: ", ndo->program_name);
va_start(ap, fmt);
(void)vfprintf(stderr, fmt, ap);
(void)fputc('\n', stderr);
}
nd_cleanup();
- exit(1);
+ exit(status);
/* NOTREACHED */
}
/* VARARGS */
-static void
-ndo_warning(netdissect_options *ndo, const char *fmt, ...)
+static void PRINTFLIKE(2, 3)
+ndo_warning(netdissect_options *ndo, FORMAT_STRING(const char *fmt), ...)
{
va_list ap;
- if(ndo->program_name)
+ if (ndo->program_name)
(void)fprintf(stderr, "%s: ", ndo->program_name);
(void)fprintf(stderr, "WARNING: ");
va_start(ap, fmt);
}
}
-static int
-ndo_printf(netdissect_options *ndo, const char *fmt, ...)
+/* VARARGS */
+static int PRINTFLIKE(2, 3)
+ndo_printf(netdissect_options *ndo, FORMAT_STRING(const char *fmt), ...)
{
va_list args;
int ret;
va_end(args);
if (ret < 0)
- ndo_error(ndo, "Unable to write output: %s", pcap_strerror(errno));
+ ndo_error(ndo, S_ERR_ND_WRITE_FILE,
+ "Unable to write output: %s", pcap_strerror(errno));
return (ret);
}
ndo->ndo_error=ndo_error;
ndo->ndo_warning=ndo_warning;
}
-/*
- * Local Variables:
- * c-style: whitesmith
- * c-basic-offset: 8
- * End:
- */
projects / tcpdump / blobdiff