* 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
{ 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) {
+vlan_str(const uint16_t vid)
+{
static char buf[sizeof("65535 (bogus)")];
const char *fmt;
}
static const char *
-pcp_str(const uint8_t pcp) {
+pcp_str(const uint8_t pcp)
+{
static char buf[sizeof("255 (bogus)")];
snprintf(buf, sizeof(buf), pcp <= 7 ? "%u" : "%u (bogus)", pcp);
return buf;
static void
of10_bitmap_print(netdissect_options *ndo,
- const struct tok *t, const uint32_t v, const uint32_t u) {
+ const struct tok *t, const uint32_t v, const uint32_t u)
+{
const char *sep = " (";
if (v == 0)
static const u_char *
of10_data_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
if (len == 0)
return cp;
/* data */
static const u_char *
of10_bsn_message_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
const u_char *cp0 = cp;
uint32_t subtype;
* +---------------+---------------+---------------+---------------+
* | 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) {
+ 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 *, u_int);
/* Vendor ID is mandatory, data is optional. */
static const u_char *
of10_vendor_data_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
uint32_t vendor;
if (len < 4)
static const u_char *
of10_packet_data_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
if (len == 0)
return cp;
/* data */
/* [OF10] Section 5.2.1 */
static const u_char *
of10_phy_ports_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
/* [OF10] Section 5.2.2 */
static const u_char *
of10_queue_props_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
uint16_t property, plen, rate;
/* ibid */
static const u_char *
of10_queues_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
uint16_t desclen;
/* [OF10] Section 5.2.3 */
static const u_char *
of10_match_print(netdissect_options *ndo,
- const char *pfx, const u_char *cp, const u_char *ep) {
+ const char *pfx, const u_char *cp, const u_char *ep)
+{
uint32_t wildcards;
uint16_t dl_type;
uint8_t nw_proto;
static const u_char *
of10_actions_print(netdissect_options *ndo,
const char *pfx, const u_char *cp, const u_char *ep,
- u_int len) {
+ u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
uint16_t type, alen, output_port;
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:
/* [OF10] Section 5.3.1 */
static const u_char *
of10_features_reply_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
/* datapath_id */
ND_TCHECK2(*cp, 8);
ND_PRINT((ndo, "\n\t dpid 0x%016" PRIx64, EXTRACT_64BITS(cp)));
/* [OF10] Section 5.3.3 */
static const u_char *
of10_flow_mod_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
uint16_t command;
/* match */
/* ibid */
static const u_char *
of10_port_mod_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep) {
+ const u_char *cp, const u_char *ep)
+{
/* port_no */
ND_TCHECK2(*cp, 2);
ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
/* [OF10] Section 5.3.5 */
static const u_char *
of10_stats_request_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
uint16_t type;
/* ibid */
static const u_char *
of10_desc_stats_reply_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
if (len != OF_DESC_STATS_LEN)
goto corrupt;
/* mfr_desc */
/* ibid */
static const u_char *
of10_flow_stats_reply_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
uint16_t entry_len;
static const u_char *
of10_aggregate_stats_reply_print(netdissect_options *ndo,
const u_char *cp, const u_char *ep,
- const u_int len) {
+ const u_int len)
+{
if (len != OF_AGGREGATE_STATS_REPLY_LEN)
goto corrupt;
/* packet_count */
/* ibid */
static const u_char *
of10_table_stats_reply_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
/* ibid */
static const u_char *
of10_port_stats_reply_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
/* ibid */
static const u_char *
of10_queue_stats_reply_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, u_int len) {
+ const u_char *cp, const u_char *ep, u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
/* ibid */
static const u_char *
of10_stats_reply_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
const u_char *cp0 = cp;
uint16_t type;
/* [OF10] Section 5.3.6 */
static const u_char *
of10_packet_out_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
uint16_t actions_len;
/* [OF10] Section 5.4.1 */
static const u_char *
of10_packet_in_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
/* buffer_id */
ND_TCHECK2(*cp, 4);
ND_PRINT((ndo, "\n\t buffer_id %s", tok2str(bufferid_str, "0x%08x", EXTRACT_32BITS(cp))));
/* [OF10] Section 5.4.2 */
static const u_char *
of10_flow_removed_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep) {
+ const u_char *cp, const u_char *ep)
+{
/* match */
if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
return ep; /* end of snapshot */
/* [OF10] Section 5.4.4 */
static const u_char *
of10_error_print(netdissect_options *ndo,
- const u_char *cp, const u_char *ep, const u_int len) {
+ const u_char *cp, const u_char *ep, const u_int len)
+{
uint16_t type;
const struct tok *code_str;
const u_char *
of10_header_body_print(netdissect_options *ndo,
const u_char *cp, const u_char *ep, const uint8_t type,
- const uint16_t len, const uint32_t xid) {
+ const uint16_t len, const uint32_t xid)
+{
const u_char *cp0 = cp;
const u_int len0 = len;
/* Thus far message length is not less than the basic header size, but most
projects / tcpdump / blobdiff