X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/f5d8a72d30c80c4a964c4e16bdde398b577ed47c..c115ab8ae92fd369ac227e93419e76fd6ae8e75c:/print-openflow-1.0.c

diff --git a/print-openflow-1.0.c b/print-openflow-1.0.c
index 6f86709d..a36c32f3 100644
--- a/print-openflow-1.0.c
+++ b/print-openflow-1.0.c
@@ -26,7 +26,8 @@
  * 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
@@ -670,9 +671,33 @@ static const struct tok bsn_subtype_str[] = {
 	{ 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;
 
@@ -684,7 +709,8 @@ vlan_str(const uint16_t vid) {
 }
 
 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;
@@ -692,7 +718,8 @@ pcp_str(const uint8_t pcp) {
 
 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)
@@ -709,7 +736,8 @@ of10_bitmap_print(netdissect_options *ndo,
 
 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 */
@@ -726,7 +754,8 @@ trunc:
 
 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;
 
@@ -798,15 +827,15 @@ of10_bsn_message_print(netdissect_options *ndo,
 		 * +---------------+---------------+---------------+---------------+
 		 * |                            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);
@@ -846,6 +875,73 @@ of10_bsn_message_print(netdissect_options *ndo,
 		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;
@@ -861,9 +957,113 @@ trunc:
 	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);
 
@@ -892,7 +1092,8 @@ trunc:
 /* 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)
@@ -916,7 +1117,8 @@ trunc:
 
 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 */
@@ -938,7 +1140,8 @@ trunc:
 /* [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;
 
@@ -1012,7 +1215,8 @@ trunc:
 /* [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;
@@ -1087,7 +1291,8 @@ trunc:
 /* 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;
@@ -1134,7 +1339,8 @@ trunc:
 /* [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;
@@ -1238,7 +1444,8 @@ trunc:
 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;
@@ -1377,7 +1584,7 @@ of10_actions_print(netdissect_options *ndo,
 			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:
@@ -1403,7 +1610,8 @@ trunc:
 /* [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)));
@@ -1440,7 +1648,8 @@ trunc:
 /* [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 */
@@ -1497,7 +1706,8 @@ trunc:
 /* 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))));
@@ -1533,7 +1743,8 @@ trunc:
 /* [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;
@@ -1616,7 +1827,8 @@ trunc:
 /* 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 */
@@ -1662,7 +1874,8 @@ trunc:
 /* 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;
@@ -1743,7 +1956,8 @@ trunc:
 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 */
@@ -1774,7 +1988,8 @@ trunc:
 /* 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;
 
@@ -1832,7 +2047,8 @@ trunc:
 /* 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;
 
@@ -1916,7 +2132,8 @@ trunc:
 /* 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;
 
@@ -1963,7 +2180,8 @@ trunc:
 /* 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;
 
@@ -2002,7 +2220,8 @@ trunc:
 /* [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;
@@ -2039,7 +2258,8 @@ trunc:
 /* [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))));
@@ -2071,7 +2291,8 @@ trunc:
 /* [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 */
@@ -2124,7 +2345,8 @@ trunc:
 /* [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;
 
@@ -2156,7 +2378,8 @@ trunc:
 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