bugfix from Aaron Campbel <[email protected]>:

[tcpdump] / print-atm.c

diff --git a/print-atm.c b/print-atm.c
index f9731c548e6932ae628270caca11fbd1e75620fd..c6e5d704790b52c3a0cf87caa1af54c02c106a28 100644 (file)
--- a/print-atm.c
+++ b/print-atm.c
@@ -18,6 +18,10 @@
  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
+#ifndef lint
+static const char rcsid[] _U_ =
+    "@(#) $Header: /tcpdump/master/tcpdump/print-atm.c,v 1.38.2.6 2006-01-25 13:27:24 hannes Exp $ (LBL)";
+#endif
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -37,12 +41,62 @@
 #include "atmuni31.h"
 #include "llc.h"
 
-#ifndef lint
-static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-atm.c,v 1.34 2003-11-15 00:39:16 guy Exp $ (LBL)";
-#endif
 #include "ether.h"
 
+struct tok oam_f_values[] = {
+    { OAMF4SC, "OAM F4 (segment)" },
+    { OAMF4EC, "OAM F4 (end)" },
+    { 0, NULL }
+};
+
+struct tok oam_celltype_values[] = {
+    { 0x1, "Fault Management" },
+    { 0x2, "Performance Management" },
+    { 0x8, "activate/deactivate" },
+    { 0xf, "System Management" },
+    { 0, NULL }
+};
+
+struct tok oam_fm_functype_values[] = {
+    { 0x0, "AIS" },
+    { 0x1, "RDI" },
+    { 0x4, "Continuity Check" },
+    { 0x8, "Loopback" },
+    { 0, NULL }
+};
+
+struct tok oam_pm_functype_values[] = {
+    { 0x0, "Forward Monitoring" },
+    { 0x1, "Backward Reporting" },
+    { 0x2, "Monitoring and Reporting" },
+    { 0, NULL }
+};
+
+struct tok oam_ad_functype_values[] = {
+    { 0x0, "Performance Monitoring" },
+    { 0x1, "Continuity Check" },
+    { 0, NULL }
+};
+
+static const struct tok *oam_functype_values[16] = {
+    NULL,
+    oam_fm_functype_values, /* 1 */
+    oam_pm_functype_values, /* 2 */
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    oam_ad_functype_values, /* 8 */
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
 /*
  * Print an RFC 1483 LLC-encapsulated ATM frame.
  */
@@ -58,7 +112,7 @@ atm_llc_print(const u_char *p, int length, int caplen)
                        printf("(LLC %s) ",
                etherproto_string(htons(extracted_ethertype)));
                }
-               if (!xflag && !qflag)
+               if (!suppress_default_print)
                        default_print(p, caplen);
        }
 }
@@ -72,7 +126,7 @@ atm_llc_print(const u_char *p, int length, int caplen)
 /*
  * This is the top level routine of the printer.  'p' points
  * to the LLC/SNAP header of the packet, 'h->ts' is the timestamp,
- * 'h->length' is the length of the packet off the wire, and 'h->caplen'
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
  * is the number of bytes actually captured.
  */
 u_int
@@ -88,6 +142,14 @@ atm_if_print(const struct pcap_pkthdr *h, const u_char *p)
                return (caplen);
        }
 
+        /* Cisco Style NLPID ? */
+        if (*p == LLC_UI) {
+            if (eflag)
+                printf("CNLPID ");
+            isoclns_print(p+1, length-1, caplen-1);
+            return hdrlen;
+        }
+
        /*
         * Extract the presumed LLC header into a variable, for quick
         * testing.
@@ -207,12 +269,9 @@ atm_print(u_int vpi, u_int vci, u_int traftype, const u_char *p, u_int length,
                        printf("broadcast sig: ");
                        return;
 
-               case OAMF4SC:
-                       printf("oamF4(segment): ");
-                       return;
-
+               case OAMF4SC: /* fall through */
                case OAMF4EC:
-                       printf("oamF4(end): ");
+                        oam_print(p, length, ATM_OAM_HEC);
                        return;
 
                case METAC:
@@ -241,3 +300,37 @@ atm_print(u_int vpi, u_int vci, u_int traftype, const u_char *p, u_int length,
                break;
        }
 }
+
+int 
+oam_print (const u_char *p, u_int length, u_int hec) {
+
+    u_int32_t cell_header;
+    u_int16_t cell_type, func_type,vpi,vci,payload,clp;
+
+    cell_header = EXTRACT_32BITS(p+hec);
+    cell_type = ((*(p+4+hec))>>4) & 0x0f;
+    func_type = *(p+4+hec) & 0x0f;
+
+    vpi = (cell_header>>20)&0xff;
+    vci = (cell_header>>4)&0xffff;
+    payload = (cell_header>>1)&0x7;
+    clp = cell_header&0x1;
+
+    printf("%s, vpi %u, vci %u, payload %u, clp %u, ",
+           tok2str(oam_f_values, "OAM F5", vci),
+           vpi, vci, payload, clp);
+
+    printf("cell-type %s (%u)",
+           tok2str(oam_celltype_values, "unknown", cell_type),
+           cell_type);
+
+    if (oam_functype_values[cell_type] == NULL)
+        printf(", func-type unknown (%u)", func_type);
+    else
+        printf(", func-type %s (%u)",
+               bittok2str(oam_functype_values[cell_type],"none",func_type),
+               func_type);
+
+    printf(", length %u",length);
+    return 1;
+}