Update list of Geneve option classes.

[tcpdump] / print-geneve.c

diff --git a/print-geneve.c b/print-geneve.c
index cf6d9d1e74fb2f7a9eb87d54efc04fd96e397dfd..c4645dbee09dfb4b4b56b05630d697dded7e966f 100644 (file)
--- a/print-geneve.c
+++ b/print-geneve.c
@@ -19,14 +19,14 @@
 #include "config.h"
 #endif
 
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
 
-#include "interface.h"
+#include "netdissect.h"
 #include "extract.h"
 #include "ethertype.h"
 
 /*
- * Geneve header, draft-gross-geneve-02
+ * Geneve header, draft-ietf-nvo3-geneve
  *
  *    0                   1                   2                   3
  *    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
@@ -76,12 +76,25 @@ static const struct tok geneve_flag_values[] = {
 static const char *
 format_opt_class(uint16_t opt_class)
 {
-    if (opt_class <= 0xff)
-        return "Standard";
-    else if (opt_class == 0xffff)
-        return "Experimental";
-    else
-        return "Unknown";
+    switch (opt_class) {
+    case 0x0100:
+        return "Linux";
+    case 0x0101:
+        return "Open vSwitch";
+    case 0x0102:
+        return "Open Virtual Networking (OVN)";
+    case 0x0103:
+        return "In-band Network Telemetry (INT)";
+    case 0x0104:
+        return "VMware";
+    default:
+        if (opt_class <= 0x00ff)
+            return "Standard";
+        else if (opt_class >= 0xfff0)
+            return "Experimental";
+    }
+
+    return "Unknown";
 }
 
 static void
@@ -111,14 +124,14 @@ geneve_opts_print(netdissect_options *ndo, const u_char *bp, u_int len)
         }
 
         if (ndo->ndo_vflag > 1 && opt_len > 4) {
-            const uint32_t *print_data = (const uint32_t *)(bp + 4);
+            const uint32_t *data = (const uint32_t *)(bp + 4);
             int i;
 
             ND_PRINT((ndo, " data"));
 
             for (i = 4; i < opt_len; i += 4) {
-                ND_PRINT((ndo, " %08x", EXTRACT_32BITS(print_data)));
-                print_data++;
+                ND_PRINT((ndo, " %08x", EXTRACT_32BITS(data)));
+                data++;
             }
         }
 
@@ -131,7 +144,7 @@ void
 geneve_print(netdissect_options *ndo, const u_char *bp, u_int len)
 {
     uint8_t ver_opt;
-    uint version;
+    u_int version;
     uint8_t flags;
     uint16_t prot;
     uint32_t vni;
@@ -183,7 +196,7 @@ geneve_print(netdissect_options *ndo, const u_char *bp, u_int len)
 
     if (len < opts_len) {
         ND_PRINT((ndo, " truncated-geneve - %u bytes missing",
-                  len - opts_len));
+                  opts_len - len));
         return;
     }