*
* [OF10] http://www.openflow.org/documents/openflow-spec-v1.0.0.pdf
*
+ * Most functions in this file take 3 arguments into account:
+ * * cp -- the pointer to the first octet to decode
+ * * len -- the length of the current structure as declared on the wire
+ * * ep -- the pointer to the end of the captured frame
+ * They return either the pointer to the next not-yet-decoded part of the frame
+ * or the value of ep, which means the current frame processing is over as it
+ * has been fully decoded or is invalid or truncated. This way it is possible
+ * to chain and nest such functions uniformly to decode an OF1.0 message, which
+ * consists of several layers of nested structures.
+ *
* Decoding of Ethernet frames nested in OFPT_PACKET_IN and OFPT_PACKET_OUT
* messages is done only when the verbosity level set by command-line argument
* is "-vvv" or higher. In that case the verbosity level is temporarily
* 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
* POSSIBILITY OF SUCH DAMAGE.
*/
-#define NETDISSECT_REWORKED
+/* \summary: OpenFlow protocol version 1.0 printer */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
-#include "interface.h"
+#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
#include "ether.h"
#include "openflow.h"
static const char tstr[] = " [|openflow]";
-static const char cstr[] = " (corrupt)";
#define OFPT_HELLO 0x00
#define OFPT_ERROR 0x01
{ 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) {
+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;
if (len < 4)
- goto corrupt;
+ goto invalid;
/* subtype */
ND_TCHECK2(*cp, 4);
subtype = EXTRACT_32BITS(cp);
*
*/
if (len != 12)
- goto corrupt;
+ goto invalid;
/* index */
ND_TCHECK2(*cp, 1);
ND_PRINT((ndo, ", index %u", *cp));
*
*/
if (len != 12)
- goto corrupt;
+ goto invalid;
/* index */
ND_TCHECK2(*cp, 1);
ND_PRINT((ndo, ", index %u", *cp));
* +---------------+---------------+---------------+---------------+
* | subtype |
* +---------------+---------------+---------------+---------------+
- * | ports | pad |
+ * | report m. p. | pad |
* +---------------+---------------+---------------+---------------+
*
*/
if (len != 8)
- goto corrupt;
- /* ports */
+ goto invalid;
+ /* 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);
*
*/
if (len != 4)
- goto corrupt;
+ goto invalid;
break;
case BSN_VIRTUAL_PORT_REMOVE_REQUEST:
/*
*
*/
if (len != 8)
- goto corrupt;
+ goto invalid;
/* vport_no */
ND_TCHECK2(*cp, 4);
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 invalid;
+ /* 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 invalid;
+ /* 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 cp;
-corrupt: /* skip the undersized data */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the undersized data */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len);
return cp0 + len;
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 invalid;
+ /* 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 invalid;
+ /* 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;
+
+invalid:
+ ND_PRINT((ndo, "%s", istr));
+ 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 invalid;
+ /* 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);
+
+invalid: /* skip the undersized data */
+ ND_PRINT((ndo, "%s", istr));
+ 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);
if (len < 4)
- goto corrupt;
+ goto invalid;
/* vendor */
ND_TCHECK2(*cp, 4);
vendor = EXTRACT_32BITS(cp);
of10_data_print;
return decoder(ndo, cp, ep, len - 4);
-corrupt: /* skip the undersized data */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the undersized data */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp, len);
return cp + len;
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)
- goto corrupt;
+ goto invalid;
/* vendor */
ND_TCHECK2(*cp, 4);
vendor = EXTRACT_32BITS(cp);
/* data */
return of10_data_print(ndo, cp, ep, len - 4);
-corrupt: /* skip the undersized data */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the undersized data */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp, len);
return cp + len;
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 */
/* [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;
while (len) {
if (len < OF_PHY_PORT_LEN)
- goto corrupt;
+ goto invalid;
/* port_no */
ND_TCHECK2(*cp, 2);
ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
} /* while */
return cp;
-corrupt: /* skip the undersized trailing data */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the undersized trailing data */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
u_char plen_bogus = 0, skip = 0;
if (len < OF_QUEUE_PROP_HEADER_LEN)
- goto corrupt;
+ goto invalid;
/* property */
ND_TCHECK2(*cp, 2);
property = EXTRACT_16BITS(cp);
cp += 2;
ND_PRINT((ndo, ", len %u", plen));
if (plen < OF_QUEUE_PROP_HEADER_LEN || plen > len)
- goto corrupt;
+ goto invalid;
/* pad */
ND_TCHECK2(*cp, 4);
cp += 4;
} /* while */
return cp;
-corrupt: /* skip the rest of queue properties */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the rest of queue properties */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
while (len) {
if (len < OF_PACKET_QUEUE_LEN)
- goto corrupt;
+ goto invalid;
/* queue_id */
ND_TCHECK2(*cp, 4);
ND_PRINT((ndo, "\n\t queue_id %u", EXTRACT_32BITS(cp)));
cp += 2;
ND_PRINT((ndo, ", len %u", desclen));
if (desclen < OF_PACKET_QUEUE_LEN || desclen > len)
- goto corrupt;
+ goto invalid;
/* pad */
ND_TCHECK2(*cp, 2);
cp += 2;
} /* while */
return cp;
-corrupt: /* skip the rest of queues */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the rest of queues */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
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;
u_char alen_bogus = 0, skip = 0;
if (len < OF_ACTION_HEADER_LEN)
- goto corrupt;
+ goto invalid;
/* type */
ND_TCHECK2(*cp, 2);
type = EXTRACT_16BITS(cp);
ND_PRINT((ndo, ", len %u", alen));
/* On action size underrun/overrun skip the rest of the action list. */
if (alen < OF_ACTION_HEADER_LEN || alen > len)
- goto corrupt;
+ goto invalid;
/* On action size inappropriate for the given type or invalid type just skip
* the current action, as the basic length constraint has been met. */
switch (type) {
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:
} /* while */
return cp;
-corrupt: /* skip the rest of actions */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the rest of actions */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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)));
/* [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;
case OFPST_DESC:
case OFPST_TABLE:
if (len)
- goto corrupt;
+ goto invalid;
return cp;
case OFPST_FLOW:
case OFPST_AGGREGATE:
if (len != OF_FLOW_STATS_REQUEST_LEN)
- goto corrupt;
+ goto invalid;
/* match */
if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep)))
return ep; /* end of snapshot */
return cp + 2;
case OFPST_PORT:
if (len != OF_PORT_STATS_REQUEST_LEN)
- goto corrupt;
+ goto invalid;
/* port_no */
ND_TCHECK2(*cp, 2);
ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
return cp + 6;
case OFPST_QUEUE:
if (len != OF_QUEUE_STATS_REQUEST_LEN)
- goto corrupt;
+ goto invalid;
/* port_no */
ND_TCHECK2(*cp, 2);
ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
}
return cp;
-corrupt: /* skip the message body */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the message body */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
+ goto invalid;
/* mfr_desc */
ND_TCHECK2(*cp, DESC_STR_LEN);
ND_PRINT((ndo, "\n\t mfr_desc '"));
ND_PRINT((ndo, "'"));
return cp + DESC_STR_LEN;
-corrupt: /* skip the message body */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the message body */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp, len);
return cp + len;
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;
while (len) {
if (len < OF_FLOW_STATS_LEN)
- goto corrupt;
+ goto invalid;
/* length */
ND_TCHECK2(*cp, 2);
entry_len = EXTRACT_16BITS(cp);
ND_PRINT((ndo, "\n\t length %u", entry_len));
if (entry_len < OF_FLOW_STATS_LEN || entry_len > len)
- goto corrupt;
+ goto invalid;
cp += 2;
/* table_id */
ND_TCHECK2(*cp, 1);
} /* while */
return cp;
-corrupt: /* skip the rest of flow statistics entries */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the rest of flow statistics entries */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
+ goto invalid;
/* packet_count */
ND_TCHECK2(*cp, 8);
ND_PRINT((ndo, "\n\t packet_count %" PRIu64, EXTRACT_64BITS(cp)));
ND_TCHECK2(*cp, 4);
return cp + 4;
-corrupt: /* skip the message body */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the message body */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp, len);
return cp + len;
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;
while (len) {
if (len < OF_TABLE_STATS_LEN)
- goto corrupt;
+ goto invalid;
/* table_id */
ND_TCHECK2(*cp, 1);
ND_PRINT((ndo, "\n\t table_id %s", tok2str(tableid_str, "%u", *cp)));
} /* while */
return cp;
-corrupt: /* skip the undersized trailing data */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the undersized trailing data */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
while (len) {
if (len < OF_PORT_STATS_LEN)
- goto corrupt;
+ goto invalid;
/* port_no */
ND_TCHECK2(*cp, 2);
ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
} /* while */
return cp;
-corrupt: /* skip the undersized trailing data */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the undersized trailing data */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
while (len) {
if (len < OF_QUEUE_STATS_LEN)
- goto corrupt;
+ goto invalid;
/* port_no */
ND_TCHECK2(*cp, 2);
ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp))));
} /* while */
return cp;
-corrupt: /* skip the undersized trailing data */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the undersized trailing data */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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;
/* [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;
actions_len = EXTRACT_16BITS(cp);
cp += 2;
if (actions_len > len - OF_PACKET_OUT_LEN)
- goto corrupt;
+ goto invalid;
/* actions */
if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, actions_len)))
return ep; /* end of snapshot */
/* data */
return of10_packet_data_print(ndo, cp, ep, len - OF_PACKET_OUT_LEN - actions_len);
-corrupt: /* skip the rest of the message body */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the rest of the message body */
+ ND_PRINT((ndo, "%s", istr));
ND_TCHECK2(*cp0, len0);
return cp0 + len0;
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))));
/* [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
* possible, check that message length meets the constraint, in remaining
* cases check that the length is OK to begin decoding and leave any final
* verification up to a lower-layer function. When the current message is
- * corrupt, proceed to the next message. */
+ * invalid, proceed to the next message. */
/* [OF10] Section 5.1 */
ND_PRINT((ndo, "\n\tversion 1.0, type %s, length %u, xid 0x%08x",
case OFPT_BARRIER_REQUEST: /* [OF10] Section 5.3.7 */
case OFPT_BARRIER_REPLY: /* ibid */
if (len != OF_HEADER_LEN)
- goto corrupt;
+ goto invalid;
break;
/* OpenFlow header and fixed-size message body. */
case OFPT_SET_CONFIG: /* [OF10] Section 5.3.2 */
case OFPT_GET_CONFIG_REPLY: /* ibid */
if (len != OF_SWITCH_CONFIG_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
/* flags */
return cp + 2;
case OFPT_PORT_MOD:
if (len != OF_PORT_MOD_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_port_mod_print(ndo, cp, ep);
case OFPT_QUEUE_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.4 */
if (len != OF_QUEUE_GET_CONFIG_REQUEST_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
/* port */
return cp + 2;
case OFPT_FLOW_REMOVED:
if (len != OF_FLOW_REMOVED_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_flow_removed_print(ndo, cp, ep);
case OFPT_PORT_STATUS: /* [OF10] Section 5.4.3 */
if (len != OF_PORT_STATUS_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
/* reason */
/* OpenFlow header, fixed-size message body and n * fixed-size data units. */
case OFPT_FEATURES_REPLY:
if (len < OF_SWITCH_FEATURES_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_features_reply_print(ndo, cp, ep, len);
/* OpenFlow header, fixed-size message body and variable-size data. */
case OFPT_ERROR:
if (len < OF_ERROR_MSG_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_error_print(ndo, cp, ep, len);
case OFPT_VENDOR:
/* [OF10] Section 5.5.4 */
if (len < OF_VENDOR_HEADER_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
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)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_packet_in_print(ndo, cp, ep, len);
/* c. OpenFlow header, fixed-size message body and variable-size data. */
case OFPT_STATS_REQUEST:
if (len < OF_STATS_REQUEST_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_stats_request_print(ndo, cp, ep, len);
/* d. OpenFlow header, fixed-size message body and variable-size data. */
case OFPT_STATS_REPLY:
if (len < OF_STATS_REPLY_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_stats_reply_print(ndo, cp, ep, len);
/* OpenFlow header and n * variable-size data units and variable-size data. */
case OFPT_PACKET_OUT:
if (len < OF_PACKET_OUT_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_packet_out_print(ndo, cp, ep, len);
/* OpenFlow header, fixed-size message body and n * variable-size data units. */
case OFPT_FLOW_MOD:
if (len < OF_FLOW_MOD_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
return of10_flow_mod_print(ndo, cp, ep, len);
/* OpenFlow header, fixed-size message body and n * variable-size data units. */
case OFPT_QUEUE_GET_CONFIG_REPLY: /* [OF10] Section 5.3.4 */
if (len < OF_QUEUE_GET_CONFIG_REPLY_LEN)
- goto corrupt;
+ goto invalid;
if (ndo->ndo_vflag < 1)
goto next_message;
/* port */
} /* switch (type) */
goto next_message;
-corrupt: /* skip the message body */
- ND_PRINT((ndo, "%s", cstr));
+invalid: /* skip the message body */
+ ND_PRINT((ndo, "%s", istr));
next_message:
ND_TCHECK2(*cp0, len0 - OF_HEADER_LEN);
return cp0 + len0 - OF_HEADER_LEN;
projects / tcpdump / blobdiff