* the nested frames.
*
* Partial decoding of Big Switch Networks vendor extensions is done after the
- * oftest (OpenFlow Testing Framework) source code.
+ * oftest (OpenFlow Testing Framework) and Loxigen (library generator) source
+ * code.
*
*
* Copyright (c) 2013 The TCPDUMP project
{ BSN_SET_MIRRORING, "SET_MIRRORING" },
{ BSN_GET_MIRRORING_REQUEST, "GET_MIRRORING_REQUEST" },
{ BSN_GET_MIRRORING_REPLY, "GET_MIRRORING_REPLY" },
+ { BSN_SHELL_COMMAND, "SHELL_COMMAND" },
+ { BSN_SHELL_OUTPUT, "SHELL_OUTPUT" },
+ { BSN_SHELL_STATUS, "SHELL_STATUS" },
{ BSN_GET_INTERFACES_REQUEST, "GET_INTERFACES_REQUEST" },
{ BSN_GET_INTERFACES_REPLY, "GET_INTERFACES_REPLY" },
{ BSN_SET_PKTIN_SUPPRESSION_REQUEST, "SET_PKTIN_SUPPRESSION_REQUEST" },
{ 0, NULL }
};
+#define BSN_ACTION_MIRROR 1
+#define BSN_ACTION_SET_TUNNEL_DST 2
+ /* 3 */
+#define BSN_ACTION_CHECKSUM 4
+
+static const struct tok bsn_action_subtype_str[] = {
+ { BSN_ACTION_MIRROR, "MIRROR" },
+ { BSN_ACTION_SET_TUNNEL_DST, "SET_TUNNEL_DST" },
+ { BSN_ACTION_CHECKSUM, "CHECKSUM" },
+ { 0, NULL }
+};
+
+static const struct tok bsn_mirror_copy_stage_str[] = {
+ { 0, "INGRESS" },
+ { 1, "EGRESS" },
+ { 0, NULL },
+};
+
+static const struct tok bsn_onoff_str[] = {
+ { 0, "OFF" },
+ { 1, "ON" },
+ { 0, NULL },
+};
static const char *
vlan_str(const uint16_t vid) {
* +---------------+---------------+---------------+---------------+
* | subtype |
* +---------------+---------------+---------------+---------------+
- * | ports | pad |
+ * | report m. p. | pad |
* +---------------+---------------+---------------+---------------+
*
*/
if (len != 8)
goto corrupt;
- /* ports */
+ /* report_mirror_ports */
ND_TCHECK2(*cp, 1);
- ND_PRINT((ndo, ", ports %u", *cp));
+ ND_PRINT((ndo, ", report_mirror_ports %s", tok2str(bsn_onoff_str, "bogus (%u)", *cp)));
cp += 1;
/* pad */
ND_TCHECK2(*cp, 3);
ND_PRINT((ndo, ", vport_no %u", EXTRACT_32BITS(cp)));
cp += 4;
break;
+ case BSN_SHELL_COMMAND:
+ /*
+ * 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
+ * +---------------+---------------+---------------+---------------+
+ * | subtype |
+ * +---------------+---------------+---------------+---------------+
+ * | service |
+ * +---------------+---------------+---------------+---------------+
+ * | data ...
+ * +---------------+---------------+--------
+ *
+ */
+ if (len < 8)
+ goto corrupt;
+ /* service */
+ ND_TCHECK2(*cp, 4);
+ ND_PRINT((ndo, ", service %u", EXTRACT_32BITS(cp)));
+ cp += 4;
+ /* data */
+ ND_PRINT((ndo, ", data '"));
+ if (fn_printn(ndo, cp, len - 8, ep)) {
+ ND_PRINT((ndo, "'"));
+ goto trunc;
+ }
+ ND_PRINT((ndo, "'"));
+ cp += len - 8;
+ break;
+ case BSN_SHELL_OUTPUT:
+ /*
+ * 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
+ * +---------------+---------------+---------------+---------------+
+ * | subtype |
+ * +---------------+---------------+---------------+---------------+
+ * | data ...
+ * +---------------+---------------+--------
+ *
+ */
+ /* already checked that len >= 4 */
+ /* data */
+ ND_PRINT((ndo, ", data '"));
+ if (fn_printn(ndo, cp, len - 4, ep)) {
+ ND_PRINT((ndo, "'"));
+ goto trunc;
+ }
+ ND_PRINT((ndo, "'"));
+ cp += len - 4;
+ break;
+ case BSN_SHELL_STATUS:
+ /*
+ * 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
+ * +---------------+---------------+---------------+---------------+
+ * | subtype |
+ * +---------------+---------------+---------------+---------------+
+ * | status |
+ * +---------------+---------------+---------------+---------------+
+ *
+ */
+ if (len != 8)
+ goto corrupt;
+ /* status */
+ ND_TCHECK2(*cp, 4);
+ ND_PRINT((ndo, ", status 0x%08x", EXTRACT_32BITS(cp)));
+ cp += 4;
+ break;
default:
ND_TCHECK2(*cp, len - 4);
cp += len - 4;
return ep;
}
+static const u_char *
+of10_bsn_actions_print(netdissect_options *ndo,
+ const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp0 = cp;
+ uint32_t subtype, vlan_tag;
+
+ if (len < 4)
+ goto corrupt;
+ /* subtype */
+ ND_TCHECK2(*cp, 4);
+ subtype = EXTRACT_32BITS(cp);
+ cp += 4;
+ ND_PRINT((ndo, "\n\t subtype %s", tok2str(bsn_action_subtype_str, "unknown (0x%08x)", subtype)));
+ switch (subtype) {
+ case BSN_ACTION_MIRROR:
+ /*
+ * 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
+ * +---------------+---------------+---------------+---------------+
+ * | subtype |
+ * +---------------+---------------+---------------+---------------+
+ * | dest_port |
+ * +---------------+---------------+---------------+---------------+
+ * | vlan_tag |
+ * +---------------+---------------+---------------+---------------+
+ * | copy_stage | pad |
+ * +---------------+---------------+---------------+---------------+
+ *
+ */
+ if (len != 16)
+ goto corrupt;
+ /* dest_port */
+ ND_TCHECK2(*cp, 4);
+ ND_PRINT((ndo, ", dest_port %u", EXTRACT_32BITS(cp)));
+ cp += 4;
+ /* vlan_tag */
+ ND_TCHECK2(*cp, 4);
+ vlan_tag = EXTRACT_32BITS(cp);
+ cp += 4;
+ switch (vlan_tag >> 16) {
+ case 0:
+ ND_PRINT((ndo, ", vlan_tag none"));
+ break;
+ case ETHERTYPE_8021Q:
+ ND_PRINT((ndo, ", vlan_tag 802.1Q (%s)", ieee8021q_tci_string(vlan_tag & 0xffff)));
+ break;
+ default:
+ ND_PRINT((ndo, ", vlan_tag unknown (0x%04x)", vlan_tag >> 16));
+ }
+ /* copy_stage */
+ ND_TCHECK2(*cp, 1);
+ ND_PRINT((ndo, ", copy_stage %s", tok2str(bsn_mirror_copy_stage_str, "unknown (%u)", *cp)));
+ cp += 1;
+ /* pad */
+ ND_TCHECK2(*cp, 3);
+ cp += 3;
+ break;
+ default:
+ ND_TCHECK2(*cp, len - 4);
+ cp += len - 4;
+ }
+
+ return cp;
+
+corrupt:
+ ND_PRINT((ndo, "%s", cstr));
+ ND_TCHECK2(*cp0, len);
+ return cp0 + len;
+trunc:
+ ND_PRINT((ndo, "%s", tstr));
+ return ep;
+}
+
+static const u_char *
+of10_vendor_action_print(netdissect_options *ndo,
+ const u_char *cp, const u_char *ep, const u_int len) {
+ uint32_t vendor;
+ const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, const u_int);
+
+ if (len < 4)
+ goto corrupt;
+ /* vendor */
+ ND_TCHECK2(*cp, 4);
+ vendor = EXTRACT_32BITS(cp);
+ cp += 4;
+ ND_PRINT((ndo, ", vendor 0x%08x (%s)", vendor, of_vendor_name(vendor)));
+ /* data */
+ decoder =
+ vendor == OUI_BSN ? of10_bsn_actions_print :
+ of10_data_print;
+ return decoder(ndo, cp, ep, len - 4);
+
+corrupt: /* skip the undersized data */
+ ND_PRINT((ndo, "%s", cstr));
+ ND_TCHECK2(*cp, len);
+ return cp + len;
+trunc:
+ ND_PRINT((ndo, "%s", tstr));
+ return ep;
+}
+
static const u_char *
of10_vendor_message_print(netdissect_options *ndo,
const u_char *cp, const u_char *ep, const u_int len) {
cp += 4;
break;
case OFPAT_VENDOR:
- if (ep == (cp = of10_vendor_data_print(ndo, cp, ep, alen - 4)))
+ if (ep == (cp = of10_vendor_action_print(ndo, cp, ep, alen - 4)))
return ep; /* end of snapshot */
break;
case OFPAT_STRIP_VLAN:
projects / tcpdump / blobdiff