Set default linktype LINUX_SLL2 when capturing on the "any" device

[tcpdump] / tcpdump.c

diff --git a/tcpdump.c b/tcpdump.c
index 2f126391258578dfac27d5a983529b455e6f4f8b..06d3d9b9d624758f5ba26703b08a1a61eb589347 100644 (file)
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -941,7 +941,7 @@ tstamp_precision_to_string(int precision)
  * necessary to make the standard I/O library work with an fdopen()ed
  * FILE * from that descriptor.
  *
- * A long time ago, in a galaxy far far away, AT&T decided that, instead
+ * A long time ago in a galaxy far, far away, AT&T decided that, instead
  * of providing separate APIs for getting and setting the FD_ flags on a
  * descriptor, getting and setting the O_ flags on a descriptor, and
  * locking files, they'd throw them all into a kitchen-sink fcntl() call
@@ -1796,6 +1796,8 @@ main(int argc, char **argv)
                                ndo->ndo_packettype = PT_PTP;
                        else if (ascii_strcasecmp(optarg, "someip") == 0)
                                ndo->ndo_packettype = PT_SOMEIP;
+                       else if (ascii_strcasecmp(optarg, "domain") == 0)
+                               ndo->ndo_packettype = PT_DOMAIN;
                        else
                                error("unknown packet type `%s'", optarg);
                        break;
@@ -1930,6 +1932,14 @@ main(int argc, char **argv)
                show_remote_devices_and_exit();
 #endif
 
+#if defined(DLT_LINUX_SLL2) && defined(HAVE_PCAP_SET_DATALINK)
+/* Set default linktype DLT_LINUX_SLL2 when capturing on the "any" device */
+               if (device != NULL &&
+                   strncmp (device, "any", strlen("any")) == 0
+                   && yflag_dlt == -1)
+                       yflag_dlt = DLT_LINUX_SLL2;
+#endif
+
        switch (ndo->ndo_tflag) {
 
        case 0: /* Default */
@@ -2178,7 +2188,8 @@ main(int argc, char **argv)
                        }
 #endif
                        (void)fprintf(stderr, "%s: data link type %s\n",
-                                     program_name, yflag_dlt_name);
+                                     program_name,
+                                     pcap_datalink_val_to_name(yflag_dlt));
                        (void)fflush(stderr);
                }
                i = pcap_snapshot(pd);
@@ -2459,7 +2470,7 @@ DIAG_ON_CLANG(assign-enum)
                 */
                if (!ndo->ndo_vflag && !WFileName) {
                        (void)fprintf(stderr,
-                           "%s: verbose output suppressed, use -v or -vv for full protocol decode\n",
+                           "%s: verbose output suppressed, use -v[v]... for full protocol decode\n",
                            program_name);
                } else
                        (void)fprintf(stderr, "%s: ", program_name);
@@ -3126,7 +3137,9 @@ print_version(void)
        (void)fprintf (stderr, "Compiled with AddressSanitizer/GCC.\n");
 #elif defined(__has_feature)
 #  if __has_feature(address_sanitizer)
-       (void)fprintf (stderr, "Compiled with AddressSanitizer/CLang.\n");
+       (void)fprintf (stderr, "Compiled with AddressSanitizer/Clang.\n");
+#  elif __has_feature(memory_sanitizer)
+       (void)fprintf (stderr, "Compiled with MemorySanitizer/Clang.\n");
 #  endif
 #endif /* __SANITIZE_ADDRESS__ or __has_feature */
 }
@@ -3137,7 +3150,7 @@ print_usage(void)
 {
        print_version();
        (void)fprintf(stderr,
-"Usage: %s [-aAbd" D_FLAG "efhH" I_FLAG J_FLAG "KlLnNOpqStu" U_FLAG "vxX#]" B_FLAG_USAGE " [ -c count ] [--count]\n", program_name);
+"Usage: %s [-Abd" D_FLAG "efhH" I_FLAG J_FLAG "KlLnNOpqStu" U_FLAG "vxX#]" B_FLAG_USAGE " [ -c count ] [--count]\n", program_name);
        (void)fprintf(stderr,
 "\t\t[ -C file_size ] [ -E algo:secret ] [ -F file ] [ -G seconds ]\n");
        (void)fprintf(stderr,