* tcpdump with "-vvvv" will do full decoding of OpenFlow and "-v" decoding of
* the nested frames.
*
+ * Partial decoding of Big Switch Networks vendor extensions is done after the
+ * oftest (OpenFlow Testing Framework) source code.
+ *
*
* Copyright (c) 2013 The TCPDUMP project
* All rights reserved.
#include "ether.h"
#include "ethertype.h"
#include "ipproto.h"
+#include "oui.h"
#include "openflow.h"
static const char tstr[] = " [|openflow]";
#define SERIAL_NUM_LEN 32
#define OFP_VLAN_NONE 0xffff
+/* vendor extensions */
+#define BSN_SET_IP_MASK 0
+#define BSN_GET_IP_MASK_REQUEST 1
+#define BSN_GET_IP_MASK_REPLY 2
+#define BSN_SET_MIRRORING 3
+#define BSN_GET_MIRRORING_REQUEST 4
+#define BSN_GET_MIRRORING_REPLY 5
+#define BSN_SHELL_COMMAND 6
+#define BSN_SHELL_OUTPUT 7
+#define BSN_SHELL_STATUS 8
+#define BSN_GET_INTERFACES_REQUEST 9
+#define BSN_GET_INTERFACES_REPLY 10
+#define BSN_SET_PKTIN_SUPPRESSION_REQUEST 11
+#define BSN_SET_L2_TABLE_REQUEST 12
+#define BSN_GET_L2_TABLE_REQUEST 13
+#define BSN_GET_L2_TABLE_REPLY 14
+#define BSN_VIRTUAL_PORT_CREATE_REQUEST 15
+#define BSN_VIRTUAL_PORT_CREATE_REPLY 16
+#define BSN_VIRTUAL_PORT_REMOVE_REQUEST 17
+#define BSN_BW_ENABLE_SET_REQUEST 18
+#define BSN_BW_ENABLE_GET_REQUEST 19
+#define BSN_BW_ENABLE_GET_REPLY 20
+#define BSN_BW_CLEAR_DATA_REQUEST 21
+#define BSN_BW_CLEAR_DATA_REPLY 22
+#define BSN_BW_ENABLE_SET_REPLY 23
+#define BSN_SET_L2_TABLE_REPLY 24
+#define BSN_SET_PKTIN_SUPPRESSION_REPLY 25
+#define BSN_VIRTUAL_PORT_REMOVE_REPLY 26
+#define BSN_HYBRID_GET_REQUEST 27
+#define BSN_HYBRID_GET_REPLY 28
+ /* 29 */
+ /* 30 */
+#define BSN_PDU_TX_REQUEST 31
+#define BSN_PDU_TX_REPLY 32
+#define BSN_PDU_RX_REQUEST 33
+#define BSN_PDU_RX_REPLY 34
+#define BSN_PDU_RX_TIMEOUT 35
+
+static const struct tok bsn_subtype_str[] = {
+ { BSN_SET_IP_MASK, "SET_IP_MASK" },
+ { BSN_GET_IP_MASK_REQUEST, "GET_IP_MASK_REQUEST" },
+ { BSN_GET_IP_MASK_REPLY, "GET_IP_MASK_REPLY" },
+ { BSN_SET_MIRRORING, "SET_MIRRORING" },
+ { BSN_GET_MIRRORING_REQUEST, "GET_MIRRORING_REQUEST" },
+ { BSN_GET_MIRRORING_REPLY, "GET_MIRRORING_REPLY" },
+ { BSN_GET_INTERFACES_REQUEST, "GET_INTERFACES_REQUEST" },
+ { BSN_GET_INTERFACES_REPLY, "GET_INTERFACES_REPLY" },
+ { BSN_SET_PKTIN_SUPPRESSION_REQUEST, "SET_PKTIN_SUPPRESSION_REQUEST" },
+ { BSN_SET_L2_TABLE_REQUEST, "SET_L2_TABLE_REQUEST" },
+ { BSN_GET_L2_TABLE_REQUEST, "GET_L2_TABLE_REQUEST" },
+ { BSN_GET_L2_TABLE_REPLY, "GET_L2_TABLE_REPLY" },
+ { BSN_VIRTUAL_PORT_CREATE_REQUEST, "VIRTUAL_PORT_CREATE_REQUEST" },
+ { BSN_VIRTUAL_PORT_CREATE_REPLY, "VIRTUAL_PORT_CREATE_REPLY" },
+ { BSN_VIRTUAL_PORT_REMOVE_REQUEST, "VIRTUAL_PORT_REMOVE_REQUEST" },
+ { BSN_BW_ENABLE_SET_REQUEST, "BW_ENABLE_SET_REQUEST" },
+ { BSN_BW_ENABLE_GET_REQUEST, "BW_ENABLE_GET_REQUEST" },
+ { BSN_BW_ENABLE_GET_REPLY, "BW_ENABLE_GET_REPLY" },
+ { BSN_BW_CLEAR_DATA_REQUEST, "BW_CLEAR_DATA_REQUEST" },
+ { BSN_BW_CLEAR_DATA_REPLY, "BW_CLEAR_DATA_REPLY" },
+ { BSN_BW_ENABLE_SET_REPLY, "BW_ENABLE_SET_REPLY" },
+ { BSN_SET_L2_TABLE_REPLY, "SET_L2_TABLE_REPLY" },
+ { BSN_SET_PKTIN_SUPPRESSION_REPLY, "SET_PKTIN_SUPPRESSION_REPLY" },
+ { BSN_VIRTUAL_PORT_REMOVE_REPLY, "VIRTUAL_PORT_REMOVE_REPLY" },
+ { BSN_HYBRID_GET_REQUEST, "HYBRID_GET_REQUEST" },
+ { BSN_HYBRID_GET_REPLY, "HYBRID_GET_REPLY" },
+ { BSN_PDU_TX_REQUEST, "PDU_TX_REQUEST" },
+ { BSN_PDU_TX_REPLY, "PDU_TX_REPLY" },
+ { BSN_PDU_RX_REQUEST, "PDU_RX_REQUEST" },
+ { BSN_PDU_RX_REPLY, "PDU_RX_REPLY" },
+ { BSN_PDU_RX_TIMEOUT, "PDU_RX_TIMEOUT" },
+ { 0, NULL }
+};
+
+
static const char *
vlan_str(const uint16_t vid) {
static char buf[sizeof("65535 (bogus)")];
return ep;
}
+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 *cp0 = cp;
+ uint32_t subtype;
+
+ 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_subtype_str, "unknown (0x%08x)", subtype)));
+ switch (subtype) {
+ case BSN_GET_IP_MASK_REQUEST:
+ /*
+ * 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 |
+ * +---------------+---------------+---------------+---------------+
+ * | index | pad |
+ * +---------------+---------------+---------------+---------------+
+ * | pad |
+ * +---------------+---------------+---------------+---------------+
+ *
+ */
+ if (len != 12)
+ goto corrupt;
+ /* index */
+ ND_TCHECK2(*cp, 1);
+ ND_PRINT((ndo, ", index %u", *cp));
+ cp += 1;
+ /* pad */
+ ND_TCHECK2(*cp, 7);
+ cp += 7;
+ break;
+ case BSN_SET_IP_MASK:
+ case BSN_GET_IP_MASK_REPLY:
+ /*
+ * 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 |
+ * +---------------+---------------+---------------+---------------+
+ * | index | pad |
+ * +---------------+---------------+---------------+---------------+
+ * | mask |
+ * +---------------+---------------+---------------+---------------+
+ *
+ */
+ if (len != 12)
+ goto corrupt;
+ /* index */
+ ND_TCHECK2(*cp, 1);
+ ND_PRINT((ndo, ", index %u", *cp));
+ cp += 1;
+ /* pad */
+ ND_TCHECK2(*cp, 3);
+ cp += 3;
+ /* mask */
+ ND_TCHECK2(*cp, 4);
+ ND_PRINT((ndo, ", mask %s", ipaddr_string(ndo, cp)));
+ cp += 4;
+ break;
+ case BSN_SET_MIRRORING:
+ case BSN_GET_MIRRORING_REQUEST:
+ case BSN_GET_MIRRORING_REPLY:
+ /*
+ * 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 |
+ * +---------------+---------------+---------------+---------------+
+ * | ports | pad |
+ * +---------------+---------------+---------------+---------------+
+ *
+ */
+ if (len != 8)
+ goto corrupt;
+ /* ports */
+ ND_TCHECK2(*cp, 1);
+ ND_PRINT((ndo, ", ports %u", *cp));
+ cp += 1;
+ /* pad */
+ ND_TCHECK2(*cp, 3);
+ cp += 3;
+ break;
+ case BSN_GET_INTERFACES_REQUEST:
+ /*
+ * 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 |
+ * +---------------+---------------+---------------+---------------+
+ *
+ */
+ if (len != 4)
+ goto corrupt;
+ break;
+ default:
+ ND_TCHECK2(*cp, len - 4);
+ cp += len - 4;
+ }
+ return cp;
+
+corrupt: /* skip the undersized data */
+ 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_message_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 *, 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_message_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;
+}
+
/* Vendor ID is mandatory, data is optional. */
static const u_char *
of10_vendor_data_print(netdissect_options *ndo,
goto corrupt;
if (ndo->ndo_vflag < 1)
goto next_message;
- return of10_vendor_data_print(ndo, cp, ep, len - OF_HEADER_LEN);
+ return of10_vendor_message_print(ndo, cp, ep, len - OF_HEADER_LEN);
case OFPT_PACKET_IN:
/* 2 mock octets count in OF_PACKET_IN_LEN but not in len */
if (len < OF_PACKET_IN_LEN - 2)
IP (tos 0x0, ttl 64, id 53965, offset 0, flags [DF], proto TCP (6), length 104)
10.0.0.80.6633 > 86.139.225.177.57145: Flags [P.], cksum 0xddb3 (correct), seq 3804035784:3804035836, ack 3936946676, win 136, options [nop,nop,TS val 256259488 ecr 12980962], length 52: OpenFlow
version 1.0, type VENDOR, length 24, xid 0x00000018, vendor 0x005c16c7 (Big Switch Networks)
- data (12 octets)
+ subtype GET_IP_MASK_REQUEST, index 0
version 1.0, type VENDOR, length 20, xid 0x00000019, vendor 0x005c16c7 (Big Switch Networks)
- data (8 octets)
+ subtype GET_MIRRORING_REQUEST, ports 0
version 1.0, type BARRIER_REQUEST, length 8, xid 0x0000001a
IP (tos 0x0, ttl 44, id 2943, offset 0, flags [DF], proto TCP (6), length 76)
86.139.225.177.57145 > 10.0.0.80.6633: Flags [P.], cksum 0xf75f (correct), seq 1:25, ack 52, win 54, options [nop,nop,TS val 12980987 ecr 256259488], length 24: OpenFlow
version 1.0, type VENDOR, length 24, xid 0x00000018, vendor 0x005c16c7 (Big Switch Networks)
- data (12 octets)
+ subtype GET_IP_MASK_REPLY, index 0, mask 255.255.255.255
IP (tos 0x0, ttl 64, id 53966, offset 0, flags [DF], proto TCP (6), length 52)
10.0.0.80.6633 > 86.139.225.177.57145: Flags [.], cksum 0x42b3 (incorrect -> 0x0ee3), ack 25, win 136, options [nop,nop,TS val 256259628 ecr 12980987], length 0
IP (tos 0x0, ttl 44, id 2944, offset 0, flags [DF], proto TCP (6), length 80)
86.139.225.177.57145 > 10.0.0.80.6633: Flags [P.], cksum 0xf55e (correct), seq 25:53, ack 52, win 54, options [nop,nop,TS val 12981023 ecr 256259628], length 28: OpenFlow
version 1.0, type VENDOR, length 20, xid 0x00000019, vendor 0x005c16c7 (Big Switch Networks)
- data (8 octets)
+ subtype GET_MIRRORING_REPLY, ports 0
version 1.0, type BARRIER_REPLY, length 8, xid 0x0000001a
projects / tcpdump / commitdiff
