gre: add support for MikroTik Ethernet-over-IP hack.

[tcpdump] / print-zeromq.c

diff --git a/print-zeromq.c b/print-zeromq.c
index 2cf9d6c3ffabdfaaec75be0a960bf1af4c3624f9..cdeecff8daba3c51753dc41e3adb4cf4da6481f6 100644 (file)
--- a/print-zeromq.c
+++ b/print-zeromq.c
@@ -26,6 +26,7 @@
  */
 
 /* \summary: ZeroMQ Message Transport Protocol (ZMTP) printer */
+/* specification: https://rfc.zeromq.org/spec/13/ */
 
 #ifdef HAVE_CONFIG_H
 #include <config.h>
@@ -42,6 +43,18 @@
  */
 #define VBYTES 128
 
+static const struct tok flags_bm[] = {
+       { 0x01, "MORE"  },
+       { 0x02, "R1" },
+       { 0x04, "R2" },
+       { 0x08, "R3" },
+       { 0x10, "R4" },
+       { 0x20, "R5" },
+       { 0x40, "R6" },
+       { 0x80, "R7" },
+       { 0, NULL }
+};
+
 /*
  * Below is an excerpt from the "13/ZMTP" specification:
  *
@@ -104,16 +117,7 @@ zmtp1_print_frame(netdissect_options *ndo, const u_char *cp, const u_char *ep)
        if (ndo->ndo_vflag) {
                uint64_t body_len_printed = ND_MIN(body_len_captured, body_len_declared);
 
-               ND_PRINT(" (%s|%s|%s|%s|%s|%s|%s|%s)",
-                       flags & 0x80 ? "MBZ" : "-",
-                       flags & 0x40 ? "MBZ" : "-",
-                       flags & 0x20 ? "MBZ" : "-",
-                       flags & 0x10 ? "MBZ" : "-",
-                       flags & 0x08 ? "MBZ" : "-",
-                       flags & 0x04 ? "MBZ" : "-",
-                       flags & 0x02 ? "MBZ" : "-",
-                       flags & 0x01 ? "MORE" : "-");
-
+               ND_PRINT(" (%s)", bittok2str(flags_bm, "none", flags));
                if (ndo->ndo_vflag == 1)
                        body_len_printed = ND_MIN(VBYTES + 1, body_len_printed);
                if (body_len_printed > 1) {
@@ -133,8 +137,7 @@ zmtp1_print_frame(netdissect_options *ndo, const u_char *cp, const u_char *ep)
        return cp + body_len_declared;
 
 trunc:
-       nd_print_trunc(ndo);
-       return ep;
+       nd_trunc_longjmp(ndo);
 }
 
 void
@@ -201,8 +204,7 @@ zmtp1_print_intermediate_part(netdissect_options *ndo, const u_char *cp, const u
        return cp + frame_offset;
 
 trunc:
-       nd_print_trunc(ndo);
-       return cp + len;
+       nd_trunc_longjmp(ndo);
 }
 
 void