]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print.c
CHANGES: Add/move change(s) backported to 4.99
[tcpdump] / print.c
diff --git a/print.c b/print.c
index 87a442318891f04f6eece001f2ffa2d790085d6e..07cb3429b98963d1837da9de066805645fc1eb08 100644 (file)
--- a/print.c
+++ b/print.c
@@ -25,9 +25,7 @@
  *     Seth Webster <[email protected]>
  */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
 
 #include <stdlib.h>
 #include <string.h>
 
 #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[] = {
-#ifdef DLT_C_HDLC
-       { chdlc_if_print,       DLT_C_HDLC },
-#endif
-#ifdef DLT_HDLC
-       { chdlc_if_print,       DLT_HDLC },
-#endif
-#if defined(DLT_PFLOG) && defined(HAVE_NET_IF_PFLOG_H)
-       { pflog_if_print,       DLT_PFLOG },
-#endif
-#ifdef DLT_LTALK
-       { ltalk_if_print,       DLT_LTALK },
-#endif
-       { NULL,                 0 },
-};
-
-static const struct void_printer void_printers[] = {
+static const struct printer printers[] = {
 #ifdef DLT_APPLE_IP_OVER_IEEE1394
        { ap1394_if_print,      DLT_APPLE_IP_OVER_IEEE1394 },
 #endif
@@ -86,6 +63,12 @@ static const struct void_printer void_printers[] = {
 #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
@@ -181,6 +164,9 @@ static const struct void_printer void_printers[] = {
 #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
@@ -197,6 +183,9 @@ static const struct void_printer void_printers[] = {
 #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
@@ -210,8 +199,8 @@ static const struct void_printer void_printers[] = {
        { ppp_hdlc_if_print,    DLT_PPP_SERIAL },
 #endif
        { ppp_if_print,         DLT_PPP },
-#ifdef DLT_PPP_WITHDIRECTION
-       { ppp_if_print,         DLT_PPP_WITHDIRECTION },
+#ifdef DLT_PPP_PPPD
+       { ppp_if_print,         DLT_PPP_PPPD },
 #endif
 #ifdef DLT_PPP_ETHER
        { pppoe_if_print,       DLT_PPP_ETHER },
@@ -273,17 +262,15 @@ static int        ndo_printf(netdissect_options *ndo,
 void
 init_print(netdissect_options *ndo, uint32_t localnet, uint32_t mask)
 {
-
        init_addrtoname(ndo, localnet, mask);
-       init_checksum();
 }
 
-uint_if_printer
-lookup_uint_printer(int type)
+if_printer
+lookup_printer(int type)
 {
-       const struct uint_printer *p;
+       const struct printer *p;
 
-       for (p = uint_printers; p->f; ++p)
+       for (p = printers; p->f; ++p)
                if (type == p->type)
                        return p->f;
 
@@ -305,7 +292,7 @@ lookup_uint_printer(int type)
         * that.
         */
        if (type == DLT_USER2) {
-               for (p = uint_printers; p->f; ++p)
+               for (p = printers; p->f; ++p)
                        if (DLT_PKTAP == p->type)
                                return p->f;
        }
@@ -315,82 +302,40 @@ lookup_uint_printer(int type)
        /* NOTREACHED */
 }
 
-void_if_printer
-lookup_void_printer(int type)
-{
-       const struct void_printer *p;
-
-       for (p = void_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 = void_printers; p->f; ++p)
-                       if (DLT_PKTAP == p->type)
-                               return p->f;
-       }
-#endif
-
-       return NULL;
-       /* 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)
 {
-       if_printer_t printer;
+       if_printer printer;
 
-       printer = lookup_printer(ndo, type);
-       if (printer.printer == NULL)
-               printer.void_printer = unsupported_if_print;
+       printer = lookup_printer(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)
 {
-       u_int hdrlen;
+       u_int hdrlen = 0;
        int invalid_header = 0;
 
+#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);
 
@@ -447,7 +392,16 @@ pretty_print_packet(netdissect_options *ndo, const struct pcap_pkthdr *h,
         * bigger lengths.
         */
 
-       ts_print(ndo, &h->ts);
+       /*
+        * 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
@@ -456,21 +410,27 @@ pretty_print_packet(netdissect_options *ndo, const struct pcap_pkthdr *h,
         * of the netdissect_options structure.
         */
        ndo->ndo_snapend = sp + h->caplen;
+       ndo->ndo_packetp = sp;
 
        ndo->ndo_protocol = "";
        ndo->ndo_ll_hdr_len = 0;
-       if (setjmp(ndo->ndo_truncated) == 0) {
+       switch (setjmp(ndo->ndo_early_end)) {
+       case 0:
                /* Print the packet. */
-               if (ndo->ndo_void_printer == TRUE) {
-                       (ndo->ndo_if_printer.void_printer)(ndo, h, sp);
-                       hdrlen = ndo->ndo_ll_hdr_len;
-               } else
-                       hdrlen = (ndo->ndo_if_printer.uint_printer)(ndo, h, sp);
-       } else {
+               (ndo->ndo_if_printer)(ndo, h, sp);
+               break;
+       case ND_TRUNCATED:
                /* A printer quit because the packet was truncated; report it */
-               ND_PRINT(" [|%s]", ndo->ndo_protocol);
-               hdrlen = ndo->ndo_ll_hdr_len;
+               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;
 
        /*
         * Empty the stack of packet information, freeing all pushed buffers;
@@ -481,10 +441,14 @@ pretty_print_packet(netdissect_options *ndo, const struct pcap_pkthdr *h,
        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.