From e91eac244982a8728f370000c353b16e18174ec9 Mon Sep 17 00:00:00 2001 From: Xin LI Date: Tue, 6 Jan 2015 19:03:11 +0000 Subject: Vendor import of tcpdump 4.6.2. --- print-openflow-1.0.c | 2078 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 2078 insertions(+) create mode 100644 print-openflow-1.0.c (limited to 'print-openflow-1.0.c') diff --git a/print-openflow-1.0.c b/print-openflow-1.0.c new file mode 100644 index 000000000000..a26f2dc0cdb3 --- /dev/null +++ b/print-openflow-1.0.c @@ -0,0 +1,2078 @@ +/* + * This module implements decoding of OpenFlow protocol version 1.0 (wire + * protocol 0x01). The decoder implements terse (default), detailed (-v) and + * full (-vv) output formats and, as much as each format implies, detects and + * tries to work around sizing anomalies inside the messages. The decoder marks + * up bogus values of selected message fields and decodes partially captured + * messages up to the snapshot end. It is based on the specification below: + * + * [OF10] http://www.openflow.org/documents/openflow-spec-v1.0.0.pdf + * + * 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 + * decremented by 3 during the nested frame decoding. For example, running + * tcpdump with "-vvvv" will do full decoding of OpenFlow and "-v" decoding of + * the nested frames. + * + * + * Copyright (c) 2013 The TCPDUMP project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#define NETDISSECT_REWORKED +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include + +#include "interface.h" +#include "extract.h" +#include "addrtoname.h" +#include "ether.h" +#include "ethertype.h" +#include "ipproto.h" +#include "openflow.h" + +static const char tstr[] = " [|openflow]"; +static const char cstr[] = " (corrupt)"; + +#define OFPT_HELLO 0x00 +#define OFPT_ERROR 0x01 +#define OFPT_ECHO_REQUEST 0x02 +#define OFPT_ECHO_REPLY 0x03 +#define OFPT_VENDOR 0x04 +#define OFPT_FEATURES_REQUEST 0x05 +#define OFPT_FEATURES_REPLY 0x06 +#define OFPT_GET_CONFIG_REQUEST 0x07 +#define OFPT_GET_CONFIG_REPLY 0x08 +#define OFPT_SET_CONFIG 0x09 +#define OFPT_PACKET_IN 0x0a +#define OFPT_FLOW_REMOVED 0x0b +#define OFPT_PORT_STATUS 0x0c +#define OFPT_PACKET_OUT 0x0d +#define OFPT_FLOW_MOD 0x0e +#define OFPT_PORT_MOD 0x0f +#define OFPT_STATS_REQUEST 0x10 +#define OFPT_STATS_REPLY 0x11 +#define OFPT_BARRIER_REQUEST 0x12 +#define OFPT_BARRIER_REPLY 0x13 +#define OFPT_QUEUE_GET_CONFIG_REQUEST 0x14 +#define OFPT_QUEUE_GET_CONFIG_REPLY 0x15 +static const struct tok ofpt_str[] = { + { OFPT_HELLO, "HELLO" }, + { OFPT_ERROR, "ERROR" }, + { OFPT_ECHO_REQUEST, "ECHO_REQUEST" }, + { OFPT_ECHO_REPLY, "ECHO_REPLY" }, + { OFPT_VENDOR, "VENDOR" }, + { OFPT_FEATURES_REQUEST, "FEATURES_REQUEST" }, + { OFPT_FEATURES_REPLY, "FEATURES_REPLY" }, + { OFPT_GET_CONFIG_REQUEST, "GET_CONFIG_REQUEST" }, + { OFPT_GET_CONFIG_REPLY, "GET_CONFIG_REPLY" }, + { OFPT_SET_CONFIG, "SET_CONFIG" }, + { OFPT_PACKET_IN, "PACKET_IN" }, + { OFPT_FLOW_REMOVED, "FLOW_REMOVED" }, + { OFPT_PORT_STATUS, "PORT_STATUS" }, + { OFPT_PACKET_OUT, "PACKET_OUT" }, + { OFPT_FLOW_MOD, "FLOW_MOD" }, + { OFPT_PORT_MOD, "PORT_MOD" }, + { OFPT_STATS_REQUEST, "STATS_REQUEST" }, + { OFPT_STATS_REPLY, "STATS_REPLY" }, + { OFPT_BARRIER_REQUEST, "BARRIER_REQUEST" }, + { OFPT_BARRIER_REPLY, "BARRIER_REPLY" }, + { OFPT_QUEUE_GET_CONFIG_REQUEST, "QUEUE_GET_CONFIG_REQUEST" }, + { OFPT_QUEUE_GET_CONFIG_REPLY, "QUEUE_GET_CONFIG_REPLY" }, + { 0, NULL } +}; + +#define OFPPC_PORT_DOWN (1 << 0) +#define OFPPC_NO_STP (1 << 1) +#define OFPPC_NO_RECV (1 << 2) +#define OFPPC_NO_RECV_STP (1 << 3) +#define OFPPC_NO_FLOOD (1 << 4) +#define OFPPC_NO_FWD (1 << 5) +#define OFPPC_NO_PACKET_IN (1 << 6) +static const struct tok ofppc_bm[] = { + { OFPPC_PORT_DOWN, "PORT_DOWN" }, + { OFPPC_NO_STP, "NO_STP" }, + { OFPPC_NO_RECV, "NO_RECV" }, + { OFPPC_NO_RECV_STP, "NO_RECV_STP" }, + { OFPPC_NO_FLOOD, "NO_FLOOD" }, + { OFPPC_NO_FWD, "NO_FWD" }, + { OFPPC_NO_PACKET_IN, "NO_PACKET_IN" }, + { 0, NULL } +}; +#define OFPPC_U (~(OFPPC_PORT_DOWN | OFPPC_NO_STP | OFPPC_NO_RECV | \ + OFPPC_NO_RECV_STP | OFPPC_NO_FLOOD | OFPPC_NO_FWD | \ + OFPPC_NO_PACKET_IN)) + +#define OFPPS_LINK_DOWN (1 << 0) +#define OFPPS_STP_LISTEN (0 << 8) +#define OFPPS_STP_LEARN (1 << 8) +#define OFPPS_STP_FORWARD (2 << 8) +#define OFPPS_STP_BLOCK (3 << 8) +#define OFPPS_STP_MASK (3 << 8) +static const struct tok ofpps_bm[] = { + { OFPPS_LINK_DOWN, "LINK_DOWN" }, + { OFPPS_STP_LISTEN, "STP_LISTEN" }, + { OFPPS_STP_LEARN, "STP_LEARN" }, + { OFPPS_STP_FORWARD, "STP_FORWARD" }, + { OFPPS_STP_BLOCK, "STP_BLOCK" }, + { 0, NULL } +}; +#define OFPPS_U (~(OFPPS_LINK_DOWN | OFPPS_STP_LISTEN | OFPPS_STP_LEARN | \ + OFPPS_STP_FORWARD | OFPPS_STP_BLOCK)) + +#define OFPP_MAX 0xff00 +#define OFPP_IN_PORT 0xfff8 +#define OFPP_TABLE 0xfff9 +#define OFPP_NORMAL 0xfffa +#define OFPP_FLOOD 0xfffb +#define OFPP_ALL 0xfffc +#define OFPP_CONTROLLER 0xfffd +#define OFPP_LOCAL 0xfffe +#define OFPP_NONE 0xffff +static const struct tok ofpp_str[] = { + { OFPP_MAX, "MAX" }, + { OFPP_IN_PORT, "IN_PORT" }, + { OFPP_TABLE, "TABLE" }, + { OFPP_NORMAL, "NORMAL" }, + { OFPP_FLOOD, "FLOOD" }, + { OFPP_ALL, "ALL" }, + { OFPP_CONTROLLER, "CONTROLLER" }, + { OFPP_LOCAL, "LOCAL" }, + { OFPP_NONE, "NONE" }, + { 0, NULL } +}; + +#define OFPPF_10MB_HD (1 << 0) +#define OFPPF_10MB_FD (1 << 1) +#define OFPPF_100MB_HD (1 << 2) +#define OFPPF_100MB_FD (1 << 3) +#define OFPPF_1GB_HD (1 << 4) +#define OFPPF_1GB_FD (1 << 5) +#define OFPPF_10GB_FD (1 << 6) +#define OFPPF_COPPER (1 << 7) +#define OFPPF_FIBER (1 << 8) +#define OFPPF_AUTONEG (1 << 9) +#define OFPPF_PAUSE (1 << 10) +#define OFPPF_PAUSE_ASYM (1 << 11) +static const struct tok ofppf_bm[] = { + { OFPPF_10MB_HD, "10MB_HD" }, + { OFPPF_10MB_FD, "10MB_FD" }, + { OFPPF_100MB_HD, "100MB_HD" }, + { OFPPF_100MB_FD, "100MB_FD" }, + { OFPPF_1GB_HD, "1GB_HD" }, + { OFPPF_1GB_FD, "1GB_FD" }, + { OFPPF_10GB_FD, "10GB_FD" }, + { OFPPF_COPPER, "COPPER" }, + { OFPPF_FIBER, "FIBER" }, + { OFPPF_AUTONEG, "AUTONEG" }, + { OFPPF_PAUSE, "PAUSE" }, + { OFPPF_PAUSE_ASYM, "PAUSE_ASYM" }, + { 0, NULL } +}; +#define OFPPF_U (~(OFPPF_10MB_HD | OFPPF_10MB_FD | OFPPF_100MB_HD | \ + OFPPF_100MB_FD | OFPPF_1GB_HD | OFPPF_1GB_FD | \ + OFPPF_10GB_FD | OFPPF_COPPER | OFPPF_FIBER | \ + OFPPF_AUTONEG | OFPPF_PAUSE | OFPPF_PAUSE_ASYM)) + +#define OFPQT_NONE 0x0000 +#define OFPQT_MIN_RATE 0x0001 +static const struct tok ofpqt_str[] = { + { OFPQT_NONE, "NONE" }, + { OFPQT_MIN_RATE, "MIN_RATE" }, + { 0, NULL } +}; + +#define OFPFW_IN_PORT (1 << 0) +#define OFPFW_DL_VLAN (1 << 1) +#define OFPFW_DL_SRC (1 << 2) +#define OFPFW_DL_DST (1 << 3) +#define OFPFW_DL_TYPE (1 << 4) +#define OFPFW_NW_PROTO (1 << 5) +#define OFPFW_TP_SRC (1 << 6) +#define OFPFW_TP_DST (1 << 7) +#define OFPFW_NW_SRC_SHIFT 8 +#define OFPFW_NW_SRC_BITS 6 +#define OFPFW_NW_SRC_MASK (((1 << OFPFW_NW_SRC_BITS) - 1) << OFPFW_NW_SRC_SHIFT) +#define OFPFW_NW_DST_SHIFT 14 +#define OFPFW_NW_DST_BITS 6 +#define OFPFW_NW_DST_MASK (((1 << OFPFW_NW_DST_BITS) - 1) << OFPFW_NW_DST_SHIFT) +#define OFPFW_DL_VLAN_PCP (1 << 20) +#define OFPFW_NW_TOS (1 << 21) +#define OFPFW_ALL ((1 << 22) - 1) +static const struct tok ofpfw_bm[] = { + { OFPFW_IN_PORT, "IN_PORT" }, + { OFPFW_DL_VLAN, "DL_VLAN" }, + { OFPFW_DL_SRC, "DL_SRC" }, + { OFPFW_DL_DST, "DL_DST" }, + { OFPFW_DL_TYPE, "DL_TYPE" }, + { OFPFW_NW_PROTO, "NW_PROTO" }, + { OFPFW_TP_SRC, "TP_SRC" }, + { OFPFW_TP_DST, "TP_DST" }, + { OFPFW_DL_VLAN_PCP, "DL_VLAN_PCP" }, + { OFPFW_NW_TOS, "NW_TOS" }, + { 0, NULL } +}; +/* The above array does not include bits 8~13 (OFPFW_NW_SRC_*) and 14~19 + * (OFPFW_NW_DST_*), which are not a part of the bitmap and require decoding + * other than that of tok2str(). The macro below includes these bits such that + * they are not reported as bogus in the decoding. */ +#define OFPFW_U (~(OFPFW_ALL)) + +#define OFPAT_OUTPUT 0x0000 +#define OFPAT_SET_VLAN_VID 0x0001 +#define OFPAT_SET_VLAN_PCP 0x0002 +#define OFPAT_STRIP_VLAN 0x0003 +#define OFPAT_SET_DL_SRC 0x0004 +#define OFPAT_SET_DL_DST 0x0005 +#define OFPAT_SET_NW_SRC 0x0006 +#define OFPAT_SET_NW_DST 0x0007 +#define OFPAT_SET_NW_TOS 0x0008 +#define OFPAT_SET_TP_SRC 0x0009 +#define OFPAT_SET_TP_DST 0x000a +#define OFPAT_ENQUEUE 0x000b +#define OFPAT_VENDOR 0xffff +static const struct tok ofpat_str[] = { + { OFPAT_OUTPUT, "OUTPUT" }, + { OFPAT_SET_VLAN_VID, "SET_VLAN_VID" }, + { OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" }, + { OFPAT_STRIP_VLAN, "STRIP_VLAN" }, + { OFPAT_SET_DL_SRC, "SET_DL_SRC" }, + { OFPAT_SET_DL_DST, "SET_DL_DST" }, + { OFPAT_SET_NW_SRC, "SET_NW_SRC" }, + { OFPAT_SET_NW_DST, "SET_NW_DST" }, + { OFPAT_SET_NW_TOS, "SET_NW_TOS" }, + { OFPAT_SET_TP_SRC, "SET_TP_SRC" }, + { OFPAT_SET_TP_DST, "SET_TP_DST" }, + { OFPAT_ENQUEUE, "ENQUEUE" }, + { OFPAT_VENDOR, "VENDOR" }, + { 0, NULL } +}; + +/* bit-shifted, w/o vendor action */ +static const struct tok ofpat_bm[] = { + { 1 << OFPAT_OUTPUT, "OUTPUT" }, + { 1 << OFPAT_SET_VLAN_VID, "SET_VLAN_VID" }, + { 1 << OFPAT_SET_VLAN_PCP, "SET_VLAN_PCP" }, + { 1 << OFPAT_STRIP_VLAN, "STRIP_VLAN" }, + { 1 << OFPAT_SET_DL_SRC, "SET_DL_SRC" }, + { 1 << OFPAT_SET_DL_DST, "SET_DL_DST" }, + { 1 << OFPAT_SET_NW_SRC, "SET_NW_SRC" }, + { 1 << OFPAT_SET_NW_DST, "SET_NW_DST" }, + { 1 << OFPAT_SET_NW_TOS, "SET_NW_TOS" }, + { 1 << OFPAT_SET_TP_SRC, "SET_TP_SRC" }, + { 1 << OFPAT_SET_TP_DST, "SET_TP_DST" }, + { 1 << OFPAT_ENQUEUE, "ENQUEUE" }, + { 0, NULL } +}; +#define OFPAT_U (~(1 << OFPAT_OUTPUT | 1 << OFPAT_SET_VLAN_VID | \ + 1 << OFPAT_SET_VLAN_PCP | 1 << OFPAT_STRIP_VLAN | \ + 1 << OFPAT_SET_DL_SRC | 1 << OFPAT_SET_DL_DST | \ + 1 << OFPAT_SET_NW_SRC | 1 << OFPAT_SET_NW_DST | \ + 1 << OFPAT_SET_NW_TOS | 1 << OFPAT_SET_TP_SRC | \ + 1 << OFPAT_SET_TP_DST | 1 << OFPAT_ENQUEUE)) + +#define OFPC_FLOW_STATS (1 << 0) +#define OFPC_TABLE_STATS (1 << 1) +#define OFPC_PORT_STATS (1 << 2) +#define OFPC_STP (1 << 3) +#define OFPC_RESERVED (1 << 4) +#define OFPC_IP_REASM (1 << 5) +#define OFPC_QUEUE_STATS (1 << 6) +#define OFPC_ARP_MATCH_IP (1 << 7) +static const struct tok ofp_capabilities_bm[] = { + { OFPC_FLOW_STATS, "FLOW_STATS" }, + { OFPC_TABLE_STATS, "TABLE_STATS" }, + { OFPC_PORT_STATS, "PORT_STATS" }, + { OFPC_STP, "STP" }, + { OFPC_RESERVED, "RESERVED" }, /* not in the mask below */ + { OFPC_IP_REASM, "IP_REASM" }, + { OFPC_QUEUE_STATS, "QUEUE_STATS" }, + { OFPC_ARP_MATCH_IP, "ARP_MATCH_IP" }, + { 0, NULL } +}; +#define OFPCAP_U (~(OFPC_FLOW_STATS | OFPC_TABLE_STATS | OFPC_PORT_STATS | \ + OFPC_STP | OFPC_IP_REASM | OFPC_QUEUE_STATS | \ + OFPC_ARP_MATCH_IP)) + +#define OFPC_FRAG_NORMAL 0x0000 +#define OFPC_FRAG_DROP 0x0001 +#define OFPC_FRAG_REASM 0x0002 +#define OFPC_FRAG_MASK 0x0003 +static const struct tok ofp_config_str[] = { + { OFPC_FRAG_NORMAL, "FRAG_NORMAL" }, + { OFPC_FRAG_DROP, "FRAG_DROP" }, + { OFPC_FRAG_REASM, "FRAG_REASM" }, + { 0, NULL } +}; + +#define OFPFC_ADD 0x0000 +#define OFPFC_MODIFY 0x0001 +#define OFPFC_MODIFY_STRICT 0x0002 +#define OFPFC_DELETE 0x0003 +#define OFPFC_DELETE_STRICT 0x0004 +static const struct tok ofpfc_str[] = { + { OFPFC_ADD, "ADD" }, + { OFPFC_MODIFY, "MODIFY" }, + { OFPFC_MODIFY_STRICT, "MODIFY_STRICT" }, + { OFPFC_DELETE, "DELETE" }, + { OFPFC_DELETE_STRICT, "DELETE_STRICT" }, + { 0, NULL } +}; + +static const struct tok bufferid_str[] = { + { 0xffffffff, "NONE" }, + { 0, NULL } +}; + +#define OFPFF_SEND_FLOW_REM (1 << 0) +#define OFPFF_CHECK_OVERLAP (1 << 1) +#define OFPFF_EMERG (1 << 2) +static const struct tok ofpff_bm[] = { + { OFPFF_SEND_FLOW_REM, "SEND_FLOW_REM" }, + { OFPFF_CHECK_OVERLAP, "CHECK_OVERLAP" }, + { OFPFF_EMERG, "EMERG" }, + { 0, NULL } +}; +#define OFPFF_U (~(OFPFF_SEND_FLOW_REM | OFPFF_CHECK_OVERLAP | OFPFF_EMERG)) + +#define OFPST_DESC 0x0000 +#define OFPST_FLOW 0x0001 +#define OFPST_AGGREGATE 0x0002 +#define OFPST_TABLE 0x0003 +#define OFPST_PORT 0x0004 +#define OFPST_QUEUE 0x0005 +#define OFPST_VENDOR 0xffff +static const struct tok ofpst_str[] = { + { OFPST_DESC, "DESC" }, + { OFPST_FLOW, "FLOW" }, + { OFPST_AGGREGATE, "AGGREGATE" }, + { OFPST_TABLE, "TABLE" }, + { OFPST_PORT, "PORT" }, + { OFPST_QUEUE, "QUEUE" }, + { OFPST_VENDOR, "VENDOR" }, + { 0, NULL } +}; + +static const struct tok tableid_str[] = { + { 0xfe, "EMERG" }, + { 0xff, "ALL" }, + { 0, NULL } +}; + +#define OFPQ_ALL 0xffffffff +static const struct tok ofpq_str[] = { + { OFPQ_ALL, "ALL" }, + { 0, NULL } +}; + +#define OFPSF_REPLY_MORE 0x0001 +static const struct tok ofpsf_reply_bm[] = { + { OFPSF_REPLY_MORE, "MORE" }, + { 0, NULL } +}; +#define OFPSF_REPLY_U (~(OFPSF_REPLY_MORE)) + +#define OFPR_NO_MATCH 0x00 +#define OFPR_ACTION 0x01 +static const struct tok ofpr_str[] = { + { OFPR_NO_MATCH, "NO_MATCH" }, + { OFPR_ACTION, "ACTION" }, + { 0, NULL } +}; + +#define OFPRR_IDLE_TIMEOUT 0x00 +#define OFPRR_HARD_TIMEOUT 0x01 +#define OFPRR_DELETE 0x02 +static const struct tok ofprr_str[] = { + { OFPRR_IDLE_TIMEOUT, "IDLE_TIMEOUT" }, + { OFPRR_HARD_TIMEOUT, "HARD_TIMEOUT" }, + { OFPRR_DELETE, "DELETE" }, + { 0, NULL } +}; + +#define OFPPR_ADD 0x00 +#define OFPPR_DELETE 0x01 +#define OFPPR_MODIFY 0x02 +static const struct tok ofppr_str[] = { + { OFPPR_ADD, "ADD" }, + { OFPPR_DELETE, "DELETE" }, + { OFPPR_MODIFY, "MODIFY" }, + { 0, NULL } +}; + +#define OFPET_HELLO_FAILED 0x0000 +#define OFPET_BAD_REQUEST 0x0001 +#define OFPET_BAD_ACTION 0x0002 +#define OFPET_FLOW_MOD_FAILED 0x0003 +#define OFPET_PORT_MOD_FAILED 0x0004 +#define OFPET_QUEUE_OP_FAILED 0x0005 +static const struct tok ofpet_str[] = { + { OFPET_HELLO_FAILED, "HELLO_FAILED" }, + { OFPET_BAD_REQUEST, "BAD_REQUEST" }, + { OFPET_BAD_ACTION, "BAD_ACTION" }, + { OFPET_FLOW_MOD_FAILED, "FLOW_MOD_FAILED" }, + { OFPET_PORT_MOD_FAILED, "PORT_MOD_FAILED" }, + { OFPET_QUEUE_OP_FAILED, "QUEUE_OP_FAILED" }, + { 0, NULL } +}; + +#define OFPHFC_INCOMPATIBLE 0x0000 +#define OFPHFC_EPERM 0x0001 +static const struct tok ofphfc_str[] = { + { OFPHFC_INCOMPATIBLE, "INCOMPATIBLE" }, + { OFPHFC_EPERM, "EPERM" }, + { 0, NULL } +}; + +#define OFPBRC_BAD_VERSION 0x0000 +#define OFPBRC_BAD_TYPE 0x0001 +#define OFPBRC_BAD_STAT 0x0002 +#define OFPBRC_BAD_VENDOR 0x0003 +#define OFPBRC_BAD_SUBTYPE 0x0004 +#define OFPBRC_EPERM 0x0005 +#define OFPBRC_BAD_LEN 0x0006 +#define OFPBRC_BUFFER_EMPTY 0x0007 +#define OFPBRC_BUFFER_UNKNOWN 0x0008 +static const struct tok ofpbrc_str[] = { + { OFPBRC_BAD_VERSION, "BAD_VERSION" }, + { OFPBRC_BAD_TYPE, "BAD_TYPE" }, + { OFPBRC_BAD_STAT, "BAD_STAT" }, + { OFPBRC_BAD_VENDOR, "BAD_VENDOR" }, + { OFPBRC_BAD_SUBTYPE, "BAD_SUBTYPE" }, + { OFPBRC_EPERM, "EPERM" }, + { OFPBRC_BAD_LEN, "BAD_LEN" }, + { OFPBRC_BUFFER_EMPTY, "BUFFER_EMPTY" }, + { OFPBRC_BUFFER_UNKNOWN, "BUFFER_UNKNOWN" }, + { 0, NULL } +}; + +#define OFPBAC_BAD_TYPE 0x0000 +#define OFPBAC_BAD_LEN 0x0001 +#define OFPBAC_BAD_VENDOR 0x0002 +#define OFPBAC_BAD_VENDOR_TYPE 0x0003 +#define OFPBAC_BAD_OUT_PORT 0x0004 +#define OFPBAC_BAD_ARGUMENT 0x0005 +#define OFPBAC_EPERM 0x0006 +#define OFPBAC_TOO_MANY 0x0007 +#define OFPBAC_BAD_QUEUE 0x0008 +static const struct tok ofpbac_str[] = { + { OFPBAC_BAD_TYPE, "BAD_TYPE" }, + { OFPBAC_BAD_LEN, "BAD_LEN" }, + { OFPBAC_BAD_VENDOR, "BAD_VENDOR" }, + { OFPBAC_BAD_VENDOR_TYPE, "BAD_VENDOR_TYPE" }, + { OFPBAC_BAD_OUT_PORT, "BAD_OUT_PORT" }, + { OFPBAC_BAD_ARGUMENT, "BAD_ARGUMENT" }, + { OFPBAC_EPERM, "EPERM" }, + { OFPBAC_TOO_MANY, "TOO_MANY" }, + { OFPBAC_BAD_QUEUE, "BAD_QUEUE" }, + { 0, NULL } +}; + +#define OFPFMFC_ALL_TABLES_FULL 0x0000 +#define OFPFMFC_OVERLAP 0x0001 +#define OFPFMFC_EPERM 0x0002 +#define OFPFMFC_BAD_EMERG_TIMEOUT 0x0003 +#define OFPFMFC_BAD_COMMAND 0x0004 +#define OFPFMFC_UNSUPPORTED 0x0005 +static const struct tok ofpfmfc_str[] = { + { OFPFMFC_ALL_TABLES_FULL, "ALL_TABLES_FULL" }, + { OFPFMFC_OVERLAP, "OVERLAP" }, + { OFPFMFC_EPERM, "EPERM" }, + { OFPFMFC_BAD_EMERG_TIMEOUT, "BAD_EMERG_TIMEOUT" }, + { OFPFMFC_BAD_COMMAND, "BAD_COMMAND" }, + { OFPFMFC_UNSUPPORTED, "UNSUPPORTED" }, + { 0, NULL } +}; + +#define OFPPMFC_BAD_PORT 0x0000 +#define OFPPMFC_BAD_HW_ADDR 0x0001 +static const struct tok ofppmfc_str[] = { + { OFPPMFC_BAD_PORT, "BAD_PORT" }, + { OFPPMFC_BAD_HW_ADDR, "BAD_HW_ADDR" }, + { 0, NULL } +}; + +#define OFPQOFC_BAD_PORT 0x0000 +#define OFPQOFC_BAD_QUEUE 0x0001 +#define OFPQOFC_EPERM 0x0002 +static const struct tok ofpqofc_str[] = { + { OFPQOFC_BAD_PORT, "BAD_PORT" }, + { OFPQOFC_BAD_QUEUE, "BAD_QUEUE" }, + { OFPQOFC_EPERM, "EPERM" }, + { 0, NULL } +}; + +static const struct tok empty_str[] = { + { 0, NULL } +}; + +/* lengths (fixed or minimal) of particular protocol structures */ +#define OF_SWITCH_CONFIG_LEN 12 +#define OF_PHY_PORT_LEN 48 +#define OF_SWITCH_FEATURES_LEN 32 +#define OF_PORT_STATUS_LEN 64 +#define OF_PORT_MOD_LEN 32 +#define OF_PACKET_IN_LEN 20 +#define OF_ACTION_OUTPUT_LEN 8 +#define OF_ACTION_VLAN_VID_LEN 8 +#define OF_ACTION_VLAN_PCP_LEN 8 +#define OF_ACTION_DL_ADDR_LEN 16 +#define OF_ACTION_NW_ADDR_LEN 8 +#define OF_ACTION_TP_PORT_LEN 8 +#define OF_ACTION_NW_TOS_LEN 8 +#define OF_ACTION_VENDOR_HEADER_LEN 8 +#define OF_ACTION_HEADER_LEN 8 +#define OF_PACKET_OUT_LEN 16 +#define OF_MATCH_LEN 40 +#define OF_FLOW_MOD_LEN 72 +#define OF_FLOW_REMOVED_LEN 88 +#define OF_ERROR_MSG_LEN 12 +#define OF_STATS_REQUEST_LEN 12 +#define OF_STATS_REPLY_LEN 12 +#define OF_DESC_STATS_LEN 1056 +#define OF_FLOW_STATS_REQUEST_LEN 44 +#define OF_FLOW_STATS_LEN 88 +#define OF_AGGREGATE_STATS_REQUEST_LEN 44 +#define OF_AGGREGATE_STATS_REPLY_LEN 24 +#define OF_TABLE_STATS_LEN 64 +#define OF_PORT_STATS_REQUEST_LEN 8 +#define OF_PORT_STATS_LEN 104 +#define OF_VENDOR_HEADER_LEN 12 +#define OF_QUEUE_PROP_HEADER_LEN 8 +#define OF_QUEUE_PROP_MIN_RATE_LEN 16 +#define OF_PACKET_QUEUE_LEN 8 +#define OF_QUEUE_GET_CONFIG_REQUEST_LEN 12 +#define OF_QUEUE_GET_CONFIG_REPLY_LEN 16 +#define OF_ACTION_ENQUEUE_LEN 16 +#define OF_QUEUE_STATS_REQUEST_LEN 8 +#define OF_QUEUE_STATS_LEN 32 + +/* miscellaneous constants from [OF10] */ +#define OFP_MAX_TABLE_NAME_LEN 32 +#define OFP_MAX_PORT_NAME_LEN 16 +#define DESC_STR_LEN 256 +#define SERIAL_NUM_LEN 32 +#define OFP_VLAN_NONE 0xffff + +static const char * +vlan_str(const uint16_t vid) { + static char buf[sizeof("65535 (bogus)")]; + const char *fmt; + + if (vid == OFP_VLAN_NONE) + return "NONE"; + fmt = (vid > 0 && vid < 0x0fff) ? "%u" : "%u (bogus)"; + snprintf(buf, sizeof(buf), fmt, vid); + return buf; +} + +static const char * +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 char *sep = " ("; + + if (v == 0) + return; + /* assigned bits */ + for (; t->s != NULL; t++) + if (v & t->v) { + ND_PRINT((ndo, "%s%s", sep, t->s)); + sep = ", "; + } + /* unassigned bits? */ + ND_PRINT((ndo, v & u ? ") (bogus)" : ")")); +} + +static const u_char * +of10_data_print(netdissect_options *ndo, + const u_char *cp, const u_char *ep, const u_int len) { + if (len == 0) + return cp; + /* data */ + ND_PRINT((ndo, "\n\t data (%u octets)", len)); + ND_TCHECK2(*cp, len); + if (ndo->ndo_vflag >= 2) + hex_and_ascii_print(ndo, "\n\t ", 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, + const u_char *cp, const u_char *ep, const u_int len) { + if (len < 4) + goto corrupt; + /* vendor */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", vendor 0x%08x", EXTRACT_32BITS(cp))); + cp += 4; + /* data */ + return of10_data_print(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_packet_data_print(netdissect_options *ndo, + const u_char *cp, const u_char *ep, const u_int len) { + if (len == 0) + return cp; + /* data */ + ND_PRINT((ndo, "\n\t data (%u octets)", len)); + if (ndo->ndo_vflag < 3) + return cp + len; + ND_TCHECK2(*cp, len); + ndo->ndo_vflag -= 3; + ND_PRINT((ndo, ", frame decoding below\n")); + ether_print(ndo, cp, len, ndo->ndo_snapend - cp, NULL, NULL); + ndo->ndo_vflag += 3; + return cp + len; + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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 *cp0 = cp; + const u_int len0 = len; + + while (len) { + if (len < OF_PHY_PORT_LEN) + goto corrupt; + /* port_no */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* hw_addr */ + ND_TCHECK2(*cp, ETHER_ADDR_LEN); + ND_PRINT((ndo, ", hw_addr %s", etheraddr_string(ndo, cp))); + cp += ETHER_ADDR_LEN; + /* name */ + ND_TCHECK2(*cp, OFP_MAX_PORT_NAME_LEN); + ND_PRINT((ndo, ", name '")); + fn_print(ndo, cp, cp + OFP_MAX_PORT_NAME_LEN); + ND_PRINT((ndo, "'")); + cp += OFP_MAX_PORT_NAME_LEN; + + if (ndo->ndo_vflag < 2) { + ND_TCHECK2(*cp, 24); + cp += 24; + goto next_port; + } + /* config */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t config 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U); + cp += 4; + /* state */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t state 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofpps_bm, EXTRACT_32BITS(cp), OFPPS_U); + cp += 4; + /* curr */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t curr 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); + cp += 4; + /* advertised */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t advertised 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); + cp += 4; + /* supported */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t supported 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); + cp += 4; + /* peer */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t peer 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); + cp += 4; +next_port: + len -= OF_PHY_PORT_LEN; + } /* while */ + return cp; + +corrupt: /* skip the undersized trailing data */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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 *cp0 = cp; + const u_int len0 = len; + uint16_t property, plen, rate; + + while (len) { + u_char plen_bogus = 0, skip = 0; + + if (len < OF_QUEUE_PROP_HEADER_LEN) + goto corrupt; + /* property */ + ND_TCHECK2(*cp, 2); + property = EXTRACT_16BITS(cp); + cp += 2; + ND_PRINT((ndo, "\n\t property %s", tok2str(ofpqt_str, "invalid (0x%04x)", property))); + /* len */ + ND_TCHECK2(*cp, 2); + plen = EXTRACT_16BITS(cp); + cp += 2; + ND_PRINT((ndo, ", len %u", plen)); + if (plen < OF_QUEUE_PROP_HEADER_LEN || plen > len) + goto corrupt; + /* pad */ + ND_TCHECK2(*cp, 4); + cp += 4; + /* property-specific constraints and decoding */ + switch (property) { + case OFPQT_NONE: + plen_bogus = plen != OF_QUEUE_PROP_HEADER_LEN; + break; + case OFPQT_MIN_RATE: + plen_bogus = plen != OF_QUEUE_PROP_MIN_RATE_LEN; + break; + default: + skip = 1; + } + if (plen_bogus) { + ND_PRINT((ndo, " (bogus)")); + skip = 1; + } + if (skip) { + ND_TCHECK2(*cp, plen - 4); + cp += plen - 4; + goto next_property; + } + if (property == OFPQT_MIN_RATE) { /* the only case of property decoding */ + /* rate */ + ND_TCHECK2(*cp, 2); + rate = EXTRACT_16BITS(cp); + cp += 2; + if (rate > 1000) + ND_PRINT((ndo, ", rate disabled")); + else + ND_PRINT((ndo, ", rate %u.%u%%", rate / 10, rate % 10)); + /* pad */ + ND_TCHECK2(*cp, 6); + cp += 6; + } +next_property: + len -= plen; + } /* while */ + return cp; + +corrupt: /* skip the rest of queue properties */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* 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 *cp0 = cp; + const u_int len0 = len; + uint16_t desclen; + + while (len) { + if (len < OF_PACKET_QUEUE_LEN) + goto corrupt; + /* queue_id */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t queue_id %u", EXTRACT_32BITS(cp))); + cp += 4; + /* len */ + ND_TCHECK2(*cp, 2); + desclen = EXTRACT_16BITS(cp); + cp += 2; + ND_PRINT((ndo, ", len %u", desclen)); + if (desclen < OF_PACKET_QUEUE_LEN || desclen > len) + goto corrupt; + /* pad */ + ND_TCHECK2(*cp, 2); + cp += 2; + /* properties */ + if (ndo->ndo_vflag < 2) { + ND_TCHECK2(*cp, desclen - OF_PACKET_QUEUE_LEN); + cp += desclen - OF_PACKET_QUEUE_LEN; + goto next_queue; + } + if (ep == (cp = of10_queue_props_print(ndo, cp, ep, desclen - OF_PACKET_QUEUE_LEN))) + return ep; /* end of snapshot */ +next_queue: + len -= desclen; + } /* while */ + return cp; + +corrupt: /* skip the rest of queues */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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) { + uint32_t wildcards; + uint16_t dl_type; + uint8_t nw_proto; + u_char nw_bits; + const char *field_name; + + /* wildcards */ + ND_TCHECK2(*cp, 4); + wildcards = EXTRACT_32BITS(cp); + if (wildcards & OFPFW_U) + ND_PRINT((ndo, "%swildcards 0x%08x (bogus)", pfx, wildcards)); + cp += 4; + /* in_port */ + ND_TCHECK2(*cp, 2); + if (! (wildcards & OFPFW_IN_PORT)) + ND_PRINT((ndo, "%smatch in_port %s", pfx, tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* dl_src */ + ND_TCHECK2(*cp, ETHER_ADDR_LEN); + if (! (wildcards & OFPFW_DL_SRC)) + ND_PRINT((ndo, "%smatch dl_src %s", pfx, etheraddr_string(ndo, cp))); + cp += ETHER_ADDR_LEN; + /* dl_dst */ + ND_TCHECK2(*cp, ETHER_ADDR_LEN); + if (! (wildcards & OFPFW_DL_DST)) + ND_PRINT((ndo, "%smatch dl_dst %s", pfx, etheraddr_string(ndo, cp))); + cp += ETHER_ADDR_LEN; + /* dl_vlan */ + ND_TCHECK2(*cp, 2); + if (! (wildcards & OFPFW_DL_VLAN)) + ND_PRINT((ndo, "%smatch dl_vlan %s", pfx, vlan_str(EXTRACT_16BITS(cp)))); + cp += 2; + /* dl_vlan_pcp */ + ND_TCHECK2(*cp, 1); + if (! (wildcards & OFPFW_DL_VLAN_PCP)) + ND_PRINT((ndo, "%smatch dl_vlan_pcp %s", pfx, pcp_str(*cp))); + cp += 1; + /* pad1 */ + ND_TCHECK2(*cp, 1); + cp += 1; + /* dl_type */ + ND_TCHECK2(*cp, 2); + dl_type = EXTRACT_16BITS(cp); + cp += 2; + if (! (wildcards & OFPFW_DL_TYPE)) + ND_PRINT((ndo, "%smatch dl_type 0x%04x", pfx, dl_type)); + /* nw_tos */ + ND_TCHECK2(*cp, 1); + if (! (wildcards & OFPFW_NW_TOS)) + ND_PRINT((ndo, "%smatch nw_tos 0x%02x", pfx, *cp)); + cp += 1; + /* nw_proto */ + ND_TCHECK2(*cp, 1); + nw_proto = *cp; + cp += 1; + if (! (wildcards & OFPFW_NW_PROTO)) { + field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_ARP + ? "arp_opcode" : "nw_proto"; + ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, nw_proto)); + } + /* pad2 */ + ND_TCHECK2(*cp, 2); + cp += 2; + /* nw_src */ + ND_TCHECK2(*cp, 4); + nw_bits = (wildcards & OFPFW_NW_SRC_MASK) >> OFPFW_NW_SRC_SHIFT; + if (nw_bits < 32) + ND_PRINT((ndo, "%smatch nw_src %s/%u", pfx, ipaddr_string(ndo, cp), 32 - nw_bits)); + cp += 4; + /* nw_dst */ + ND_TCHECK2(*cp, 4); + nw_bits = (wildcards & OFPFW_NW_DST_MASK) >> OFPFW_NW_DST_SHIFT; + if (nw_bits < 32) + ND_PRINT((ndo, "%smatch nw_dst %s/%u", pfx, ipaddr_string(ndo, cp), 32 - nw_bits)); + cp += 4; + /* tp_src */ + ND_TCHECK2(*cp, 2); + if (! (wildcards & OFPFW_TP_SRC)) { + field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP + && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP + ? "icmp_type" : "tp_src"; + ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, EXTRACT_16BITS(cp))); + } + cp += 2; + /* tp_dst */ + ND_TCHECK2(*cp, 2); + if (! (wildcards & OFPFW_TP_DST)) { + field_name = ! (wildcards & OFPFW_DL_TYPE) && dl_type == ETHERTYPE_IP + && ! (wildcards & OFPFW_NW_PROTO) && nw_proto == IPPROTO_ICMP + ? "icmp_code" : "tp_dst"; + ND_PRINT((ndo, "%smatch %s %u", pfx, field_name, EXTRACT_16BITS(cp))); + } + return cp + 2; + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [OF10] Section 5.2.4 */ +static const u_char * +of10_actions_print(netdissect_options *ndo, + const char *pfx, const u_char *cp, const u_char *ep, + u_int len) { + const u_char *cp0 = cp; + const u_int len0 = len; + uint16_t type, alen, output_port; + + while (len) { + u_char alen_bogus = 0, skip = 0; + + if (len < OF_ACTION_HEADER_LEN) + goto corrupt; + /* type */ + ND_TCHECK2(*cp, 2); + type = EXTRACT_16BITS(cp); + cp += 2; + ND_PRINT((ndo, "%saction type %s", pfx, tok2str(ofpat_str, "invalid (0x%04x)", type))); + /* length */ + ND_TCHECK2(*cp, 2); + alen = EXTRACT_16BITS(cp); + cp += 2; + 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; + /* 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) { + case OFPAT_OUTPUT: + case OFPAT_SET_VLAN_VID: + case OFPAT_SET_VLAN_PCP: + case OFPAT_STRIP_VLAN: + case OFPAT_SET_NW_SRC: + case OFPAT_SET_NW_DST: + case OFPAT_SET_NW_TOS: + case OFPAT_SET_TP_SRC: + case OFPAT_SET_TP_DST: + alen_bogus = alen != 8; + break; + case OFPAT_SET_DL_SRC: + case OFPAT_SET_DL_DST: + case OFPAT_ENQUEUE: + alen_bogus = alen != 16; + break; + case OFPAT_VENDOR: + alen_bogus = alen % 8 != 0; /* already >= 8 so far */ + break; + default: + skip = 1; + } + if (alen_bogus) { + ND_PRINT((ndo, " (bogus)")); + skip = 1; + } + if (skip) { + ND_TCHECK2(*cp, alen - 4); + cp += alen - 4; + goto next_action; + } + /* OK to decode the rest of the action structure */ + switch (type) { + case OFPAT_OUTPUT: + /* port */ + ND_TCHECK2(*cp, 2); + output_port = EXTRACT_16BITS(cp); + cp += 2; + ND_PRINT((ndo, ", port %s", tok2str(ofpp_str, "%u", output_port))); + /* max_len */ + ND_TCHECK2(*cp, 2); + if (output_port == OFPP_CONTROLLER) + ND_PRINT((ndo, ", max_len %u", EXTRACT_16BITS(cp))); + cp += 2; + break; + case OFPAT_SET_VLAN_VID: + /* vlan_vid */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", vlan_vid %s", vlan_str(EXTRACT_16BITS(cp)))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 2); + cp += 2; + break; + case OFPAT_SET_VLAN_PCP: + /* vlan_pcp */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, ", vlan_pcp %s", pcp_str(*cp))); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 3); + cp += 3; + break; + case OFPAT_SET_DL_SRC: + case OFPAT_SET_DL_DST: + /* dl_addr */ + ND_TCHECK2(*cp, ETHER_ADDR_LEN); + ND_PRINT((ndo, ", dl_addr %s", etheraddr_string(ndo, cp))); + cp += ETHER_ADDR_LEN; + /* pad */ + ND_TCHECK2(*cp, 6); + cp += 6; + break; + case OFPAT_SET_NW_SRC: + case OFPAT_SET_NW_DST: + /* nw_addr */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", nw_addr %s", ipaddr_string(ndo, cp))); + cp += 4; + break; + case OFPAT_SET_NW_TOS: + /* nw_tos */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, ", nw_tos 0x%02x", *cp)); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 3); + cp += 3; + break; + case OFPAT_SET_TP_SRC: + case OFPAT_SET_TP_DST: + /* nw_tos */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", tp_port %u", EXTRACT_16BITS(cp))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 2); + cp += 2; + break; + case OFPAT_ENQUEUE: + /* port */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 6); + cp += 6; + /* queue_id */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", queue_id %s", tok2str(ofpq_str, "%u", EXTRACT_32BITS(cp)))); + cp += 4; + break; + case OFPAT_VENDOR: + if (ep == (cp = of10_vendor_data_print(ndo, cp, ep, alen - 4))) + return ep; /* end of snapshot */ + break; + case OFPAT_STRIP_VLAN: + /* pad */ + ND_TCHECK2(*cp, 4); + cp += 4; + break; + } /* switch */ +next_action: + len -= alen; + } /* while */ + return cp; + +corrupt: /* skip the rest of actions */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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) { + /* datapath_id */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, "\n\t dpid 0x%016" PRIx64, EXTRACT_64BITS(cp))); + cp += 8; + /* n_buffers */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", n_buffers %u", EXTRACT_32BITS(cp))); + cp += 4; + /* n_tables */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, ", n_tables %u", *cp)); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 3); + cp += 3; + /* capabilities */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t capabilities 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofp_capabilities_bm, EXTRACT_32BITS(cp), OFPCAP_U); + cp += 4; + /* actions */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t actions 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofpat_bm, EXTRACT_32BITS(cp), OFPAT_U); + cp += 4; + /* ports */ + return of10_phy_ports_print(ndo, cp, ep, len - OF_SWITCH_FEATURES_LEN); + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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) { + uint16_t command; + + /* match */ + if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep))) + return ep; /* end of snapshot */ + /* cookie */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, "\n\t cookie 0x%016" PRIx64, EXTRACT_64BITS(cp))); + cp += 8; + /* command */ + ND_TCHECK2(*cp, 2); + command = EXTRACT_16BITS(cp); + ND_PRINT((ndo, ", command %s", tok2str(ofpfc_str, "invalid (0x%04x)", command))); + cp += 2; + /* idle_timeout */ + ND_TCHECK2(*cp, 2); + if (EXTRACT_16BITS(cp)) + ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp))); + cp += 2; + /* hard_timeout */ + ND_TCHECK2(*cp, 2); + if (EXTRACT_16BITS(cp)) + ND_PRINT((ndo, ", hard_timeout %u", EXTRACT_16BITS(cp))); + cp += 2; + /* priority */ + ND_TCHECK2(*cp, 2); + if (EXTRACT_16BITS(cp)) + ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp))); + cp += 2; + /* buffer_id */ + ND_TCHECK2(*cp, 4); + if (command == OFPFC_ADD || command == OFPFC_MODIFY || + command == OFPFC_MODIFY_STRICT) + ND_PRINT((ndo, ", buffer_id %s", tok2str(bufferid_str, "0x%08x", EXTRACT_32BITS(cp)))); + cp += 4; + /* out_port */ + ND_TCHECK2(*cp, 2); + if (command == OFPFC_DELETE || command == OFPFC_DELETE_STRICT) + ND_PRINT((ndo, ", out_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* flags */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp))); + of10_bitmap_print(ndo, ofpff_bm, EXTRACT_16BITS(cp), OFPFF_U); + cp += 2; + /* actions */ + return of10_actions_print(ndo, "\n\t ", cp, ep, len - OF_FLOW_MOD_LEN); + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* ibid */ +static const u_char * +of10_port_mod_print(netdissect_options *ndo, + 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)))); + cp += 2; + /* hw_addr */ + ND_TCHECK2(*cp, ETHER_ADDR_LEN); + ND_PRINT((ndo, ", hw_addr %s", etheraddr_string(ndo, cp))); + cp += ETHER_ADDR_LEN; + /* config */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t config 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U); + cp += 4; + /* mask */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t mask 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppc_bm, EXTRACT_32BITS(cp), OFPPC_U); + cp += 4; + /* advertise */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t advertise 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofppf_bm, EXTRACT_32BITS(cp), OFPPF_U); + cp += 4; + /* pad */ + ND_TCHECK2(*cp, 4); + return cp + 4; + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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 *cp0 = cp; + const u_int len0 = len; + uint16_t type; + + /* type */ + ND_TCHECK2(*cp, 2); + type = EXTRACT_16BITS(cp); + cp += 2; + ND_PRINT((ndo, "\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type))); + /* flags */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp))); + if (EXTRACT_16BITS(cp)) + ND_PRINT((ndo, " (bogus)")); + cp += 2; + /* type-specific body of one of fixed lengths */ + len -= OF_STATS_REQUEST_LEN; + switch(type) { + case OFPST_DESC: + case OFPST_TABLE: + if (len) + goto corrupt; + return cp; + case OFPST_FLOW: + case OFPST_AGGREGATE: + if (len != OF_FLOW_STATS_REQUEST_LEN) + goto corrupt; + /* match */ + if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep))) + return ep; /* end of snapshot */ + /* table_id */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, "\n\t table_id %s", tok2str(tableid_str, "%u", *cp))); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 1); + cp += 1; + /* out_port */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", out_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + return cp + 2; + case OFPST_PORT: + if (len != OF_PORT_STATS_REQUEST_LEN) + goto corrupt; + /* port_no */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 6); + return cp + 6; + case OFPST_QUEUE: + if (len != OF_QUEUE_STATS_REQUEST_LEN) + goto corrupt; + /* port_no */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 2); + cp += 2; + /* queue_id */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", queue_id %s", tok2str(ofpq_str, "%u", EXTRACT_32BITS(cp)))); + return cp + 4; + case OFPST_VENDOR: + return of10_vendor_data_print(ndo, cp, ep, len); + } + return cp; + +corrupt: /* skip the message body */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* 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) { + if (len != OF_DESC_STATS_LEN) + goto corrupt; + /* mfr_desc */ + ND_TCHECK2(*cp, DESC_STR_LEN); + ND_PRINT((ndo, "\n\t mfr_desc '")); + fn_print(ndo, cp, cp + DESC_STR_LEN); + ND_PRINT((ndo, "'")); + cp += DESC_STR_LEN; + /* hw_desc */ + ND_TCHECK2(*cp, DESC_STR_LEN); + ND_PRINT((ndo, "\n\t hw_desc '")); + fn_print(ndo, cp, cp + DESC_STR_LEN); + ND_PRINT((ndo, "'")); + cp += DESC_STR_LEN; + /* sw_desc */ + ND_TCHECK2(*cp, DESC_STR_LEN); + ND_PRINT((ndo, "\n\t sw_desc '")); + fn_print(ndo, cp, cp + DESC_STR_LEN); + ND_PRINT((ndo, "'")); + cp += DESC_STR_LEN; + /* serial_num */ + ND_TCHECK2(*cp, SERIAL_NUM_LEN); + ND_PRINT((ndo, "\n\t serial_num '")); + fn_print(ndo, cp, cp + SERIAL_NUM_LEN); + ND_PRINT((ndo, "'")); + cp += SERIAL_NUM_LEN; + /* dp_desc */ + ND_TCHECK2(*cp, DESC_STR_LEN); + ND_PRINT((ndo, "\n\t dp_desc '")); + fn_print(ndo, cp, cp + DESC_STR_LEN); + ND_PRINT((ndo, "'")); + return cp + DESC_STR_LEN; + +corrupt: /* skip the message body */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp, len); + return cp + len; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* 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 *cp0 = cp; + const u_int len0 = len; + uint16_t entry_len; + + while (len) { + if (len < OF_FLOW_STATS_LEN) + goto corrupt; + /* 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; + cp += 2; + /* table_id */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, ", table_id %s", tok2str(tableid_str, "%u", *cp))); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 1); + cp += 1; + /* match */ + if (ep == (cp = of10_match_print(ndo, "\n\t ", cp, ep))) + return ep; /* end of snapshot */ + /* duration_sec */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t duration_sec %u", EXTRACT_32BITS(cp))); + cp += 4; + /* duration_nsec */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", duration_nsec %u", EXTRACT_32BITS(cp))); + cp += 4; + /* priority */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp))); + cp += 2; + /* idle_timeout */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp))); + cp += 2; + /* hard_timeout */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", hard_timeout %u", EXTRACT_16BITS(cp))); + cp += 2; + /* pad2 */ + ND_TCHECK2(*cp, 6); + cp += 6; + /* cookie */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", cookie 0x%016" PRIx64, EXTRACT_64BITS(cp))); + cp += 8; + /* packet_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", packet_count %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* byte_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* actions */ + if (ep == (cp = of10_actions_print(ndo, "\n\t ", cp, ep, entry_len - OF_FLOW_STATS_LEN))) + return ep; /* end of snapshot */ + + len -= entry_len; + } /* while */ + return cp; + +corrupt: /* skip the rest of flow statistics entries */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* ibid */ +static const u_char * +of10_aggregate_stats_reply_print(netdissect_options *ndo, + const u_char *cp, const u_char *ep, + const u_int len) { + if (len != OF_AGGREGATE_STATS_REPLY_LEN) + goto corrupt; + /* packet_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, "\n\t packet_count %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* byte_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* flow_count */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", flow_count %u", EXTRACT_32BITS(cp))); + cp += 4; + /* pad */ + ND_TCHECK2(*cp, 4); + return cp + 4; + +corrupt: /* skip the message body */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp, len); + return cp + len; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* 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 *cp0 = cp; + const u_int len0 = len; + + while (len) { + if (len < OF_TABLE_STATS_LEN) + goto corrupt; + /* table_id */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, "\n\t table_id %s", tok2str(tableid_str, "%u", *cp))); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 3); + cp += 3; + /* name */ + ND_TCHECK2(*cp, OFP_MAX_TABLE_NAME_LEN); + ND_PRINT((ndo, ", name '")); + fn_print(ndo, cp, cp + OFP_MAX_TABLE_NAME_LEN); + ND_PRINT((ndo, "'")); + cp += OFP_MAX_TABLE_NAME_LEN; + /* wildcards */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t wildcards 0x%08x", EXTRACT_32BITS(cp))); + of10_bitmap_print(ndo, ofpfw_bm, EXTRACT_32BITS(cp), OFPFW_U); + cp += 4; + /* max_entries */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t max_entries %u", EXTRACT_32BITS(cp))); + cp += 4; + /* active_count */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", active_count %u", EXTRACT_32BITS(cp))); + cp += 4; + /* lookup_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", lookup_count %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* matched_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", matched_count %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + + len -= OF_TABLE_STATS_LEN; + } /* while */ + return cp; + +corrupt: /* skip the undersized trailing data */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* 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 *cp0 = cp; + const u_int len0 = len; + + while (len) { + if (len < OF_PORT_STATS_LEN) + goto corrupt; + /* port_no */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + if (ndo->ndo_vflag < 2) { + ND_TCHECK2(*cp, OF_PORT_STATS_LEN - 2); + cp += OF_PORT_STATS_LEN - 2; + goto next_port; + } + /* pad */ + ND_TCHECK2(*cp, 6); + cp += 6; + /* rx_packets */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", rx_packets %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* tx_packets */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", tx_packets %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* rx_bytes */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", rx_bytes %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* tx_bytes */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", tx_bytes %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* rx_dropped */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", rx_dropped %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* tx_dropped */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", tx_dropped %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* rx_errors */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", rx_errors %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* tx_errors */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", tx_errors %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* rx_frame_err */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", rx_frame_err %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* rx_over_err */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", rx_over_err %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* rx_crc_err */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", rx_crc_err %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* collisions */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", collisions %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; +next_port: + len -= OF_PORT_STATS_LEN; + } /* while */ + return cp; + +corrupt: /* skip the undersized trailing data */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* 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 *cp0 = cp; + const u_int len0 = len; + + while (len) { + if (len < OF_QUEUE_STATS_LEN) + goto corrupt; + /* port_no */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 2); + cp += 2; + /* queue_id */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", queue_id %u", EXTRACT_32BITS(cp))); + cp += 4; + /* tx_bytes */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", tx_bytes %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* tx_packets */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", tx_packets %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* tx_errors */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", tx_errors %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + + len -= OF_QUEUE_STATS_LEN; + } /* while */ + return cp; + +corrupt: /* skip the undersized trailing data */ + ND_PRINT((ndo, "%s", cstr)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* 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 *cp0 = cp; + uint16_t type; + + /* type */ + ND_TCHECK2(*cp, 2); + type = EXTRACT_16BITS(cp); + ND_PRINT((ndo, "\n\t type %s", tok2str(ofpst_str, "invalid (0x%04x)", type))); + cp += 2; + /* flags */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", flags 0x%04x", EXTRACT_16BITS(cp))); + of10_bitmap_print(ndo, ofpsf_reply_bm, EXTRACT_16BITS(cp), OFPSF_REPLY_U); + cp += 2; + + if (ndo->ndo_vflag > 0) { + const u_char *(*decoder)(netdissect_options *, const u_char *, const u_char *, u_int) = + type == OFPST_DESC ? of10_desc_stats_reply_print : + type == OFPST_FLOW ? of10_flow_stats_reply_print : + type == OFPST_AGGREGATE ? of10_aggregate_stats_reply_print : + type == OFPST_TABLE ? of10_table_stats_reply_print : + type == OFPST_PORT ? of10_port_stats_reply_print : + type == OFPST_QUEUE ? of10_queue_stats_reply_print : + type == OFPST_VENDOR ? of10_vendor_data_print : + NULL; + if (decoder != NULL) + return decoder(ndo, cp, ep, len - OF_STATS_REPLY_LEN); + } + ND_TCHECK2(*cp0, len); + return cp0 + len; + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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 *cp0 = cp; + const u_int len0 = len; + uint16_t actions_len; + + /* buffer_id */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t buffer_id 0x%08x", EXTRACT_32BITS(cp))); + cp += 4; + /* in_port */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", in_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* actions_len */ + ND_TCHECK2(*cp, 2); + actions_len = EXTRACT_16BITS(cp); + cp += 2; + if (actions_len > len - OF_PACKET_OUT_LEN) + goto corrupt; + /* 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)); + ND_TCHECK2(*cp0, len0); + return cp0 + len0; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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) { + /* buffer_id */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, "\n\t buffer_id %s", tok2str(bufferid_str, "0x%08x", EXTRACT_32BITS(cp)))); + cp += 4; + /* total_len */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", total_len %u", EXTRACT_16BITS(cp))); + cp += 2; + /* in_port */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", in_port %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* reason */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, ", reason %s", tok2str(ofpr_str, "invalid (0x%02x)", *cp))); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 1); + cp += 1; + /* data */ + /* 2 mock octets count in OF_PACKET_IN_LEN but not in len */ + return of10_packet_data_print(ndo, cp, ep, len - (OF_PACKET_IN_LEN - 2)); + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [OF10] Section 5.4.2 */ +static const u_char * +of10_flow_removed_print(netdissect_options *ndo, + 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 */ + /* cookie */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, "\n\t cookie 0x%016" PRIx64, EXTRACT_64BITS(cp))); + cp += 8; + /* priority */ + ND_TCHECK2(*cp, 2); + if (EXTRACT_16BITS(cp)) + ND_PRINT((ndo, ", priority %u", EXTRACT_16BITS(cp))); + cp += 2; + /* reason */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, ", reason %s", tok2str(ofprr_str, "unknown (0x%02x)", *cp))); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 1); + cp += 1; + /* duration_sec */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", duration_sec %u", EXTRACT_32BITS(cp))); + cp += 4; + /* duration_nsec */ + ND_TCHECK2(*cp, 4); + ND_PRINT((ndo, ", duration_nsec %u", EXTRACT_32BITS(cp))); + cp += 4; + /* idle_timeout */ + ND_TCHECK2(*cp, 2); + if (EXTRACT_16BITS(cp)) + ND_PRINT((ndo, ", idle_timeout %u", EXTRACT_16BITS(cp))); + cp += 2; + /* pad2 */ + ND_TCHECK2(*cp, 2); + cp += 2; + /* packet_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", packet_count %" PRIu64, EXTRACT_64BITS(cp))); + cp += 8; + /* byte_count */ + ND_TCHECK2(*cp, 8); + ND_PRINT((ndo, ", byte_count %" PRIu64, EXTRACT_64BITS(cp))); + return cp + 8; + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +/* [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) { + uint16_t type; + const struct tok *code_str; + + /* type */ + ND_TCHECK2(*cp, 2); + type = EXTRACT_16BITS(cp); + cp += 2; + ND_PRINT((ndo, "\n\t type %s", tok2str(ofpet_str, "invalid (0x%04x)", type))); + /* code */ + ND_TCHECK2(*cp, 2); + code_str = + type == OFPET_HELLO_FAILED ? ofphfc_str : + type == OFPET_BAD_REQUEST ? ofpbrc_str : + type == OFPET_BAD_ACTION ? ofpbac_str : + type == OFPET_FLOW_MOD_FAILED ? ofpfmfc_str : + type == OFPET_PORT_MOD_FAILED ? ofppmfc_str : + type == OFPET_QUEUE_OP_FAILED ? ofpqofc_str : + empty_str; + ND_PRINT((ndo, ", code %s", tok2str(code_str, "invalid (0x%04x)", EXTRACT_16BITS(cp)))); + cp += 2; + /* data */ + return of10_data_print(ndo, cp, ep, len - OF_ERROR_MSG_LEN); + +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} + +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 u_char *cp0 = cp; + const u_int len0 = len; + /* Thus far message length is not less than the basic header size, but most + * message types have additional assorted constraints on the length. Wherever + * 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. */ + + /* [OF10] Section 5.1 */ + ND_PRINT((ndo, "\n\tversion 1.0, type %s, length %u, xid 0x%08x", + tok2str(ofpt_str, "invalid (0x%02x)", type), len, xid)); + switch (type) { + /* OpenFlow header only. */ + case OFPT_FEATURES_REQUEST: /* [OF10] Section 5.3.1 */ + case OFPT_GET_CONFIG_REQUEST: /* [OF10] Section 5.3.2 */ + case OFPT_BARRIER_REQUEST: /* [OF10] Section 5.3.7 */ + case OFPT_BARRIER_REPLY: /* ibid */ + if (len != OF_HEADER_LEN) + goto corrupt; + 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; + if (ndo->ndo_vflag < 1) + goto next_message; + /* flags */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t flags %s", tok2str(ofp_config_str, "invalid (0x%04x)", EXTRACT_16BITS(cp)))); + cp += 2; + /* miss_send_len */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, ", miss_send_len %u", EXTRACT_16BITS(cp))); + return cp + 2; + case OFPT_PORT_MOD: + if (len != OF_PORT_MOD_LEN) + goto corrupt; + 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; + if (ndo->ndo_vflag < 1) + goto next_message; + /* port */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 2); + return cp + 2; + case OFPT_FLOW_REMOVED: + if (len != OF_FLOW_REMOVED_LEN) + goto corrupt; + 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; + if (ndo->ndo_vflag < 1) + goto next_message; + /* reason */ + ND_TCHECK2(*cp, 1); + ND_PRINT((ndo, "\n\t reason %s", tok2str(ofppr_str, "invalid (0x%02x)", *cp))); + cp += 1; + /* pad */ + ND_TCHECK2(*cp, 7); + cp += 7; + /* desc */ + return of10_phy_ports_print(ndo, cp, ep, OF_PHY_PORT_LEN); + + /* OpenFlow header, fixed-size message body and n * fixed-size data units. */ + case OFPT_FEATURES_REPLY: + if (len < OF_SWITCH_FEATURES_LEN) + goto corrupt; + if (ndo->ndo_vflag < 1) + goto next_message; + return of10_features_reply_print(ndo, cp, ep, len); + + /* OpenFlow header and variable-size data. */ + case OFPT_HELLO: /* [OF10] Section 5.5.1 */ + case OFPT_ECHO_REQUEST: /* [OF10] Section 5.5.2 */ + case OFPT_ECHO_REPLY: /* [OF10] Section 5.5.3 */ + if (ndo->ndo_vflag < 1) + goto next_message; + return of10_data_print(ndo, cp, ep, len - OF_HEADER_LEN); + + /* OpenFlow header, fixed-size message body and variable-size data. */ + case OFPT_ERROR: + if (len < OF_ERROR_MSG_LEN) + goto corrupt; + 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; + if (ndo->ndo_vflag < 1) + goto next_message; + return of10_vendor_data_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; + if (ndo->ndo_vflag < 1) + goto next_message; + return of10_packet_in_print(ndo, cp, ep, len); + + /* a. OpenFlow header. */ + /* b. OpenFlow header and one of the fixed-size message bodies. */ + /* c. OpenFlow header, fixed-size message body and variable-size data. */ + case OFPT_STATS_REQUEST: + if (len < OF_STATS_REQUEST_LEN) + goto corrupt; + if (ndo->ndo_vflag < 1) + goto next_message; + return of10_stats_request_print(ndo, cp, ep, len); + + /* a. OpenFlow header and fixed-size message body. */ + /* b. OpenFlow header and n * fixed-size data units. */ + /* c. OpenFlow header and n * variable-size data units. */ + /* d. OpenFlow header, fixed-size message body and variable-size data. */ + case OFPT_STATS_REPLY: + if (len < OF_STATS_REPLY_LEN) + goto corrupt; + 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; + 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; + 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; + if (ndo->ndo_vflag < 1) + goto next_message; + /* port */ + ND_TCHECK2(*cp, 2); + ND_PRINT((ndo, "\n\t port_no %s", tok2str(ofpp_str, "%u", EXTRACT_16BITS(cp)))); + cp += 2; + /* pad */ + ND_TCHECK2(*cp, 6); + cp += 6; + /* queues */ + return of10_queues_print(ndo, cp, ep, len - OF_QUEUE_GET_CONFIG_REPLY_LEN); + } /* switch (type) */ + goto next_message; + +corrupt: /* skip the message body */ + ND_PRINT((ndo, "%s", cstr)); +next_message: + ND_TCHECK2(*cp0, len0 - OF_HEADER_LEN); + return cp0 + len0 - OF_HEADER_LEN; +trunc: + ND_PRINT((ndo, "%s", tstr)); + return ep; +} -- cgit v1.2.3