/* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
 * Junior University
 *
 * We are making the OpenFlow specification and associated documentation
 * (Software) available for public use and benefit with the expectation
 * that others will use, modify and enhance the Software and contribute
 * those enhancements back to the community. However, since we would
 * like to make the Software available for broadest use, with as few
 * restrictions as possible permission is hereby granted, free of
 * charge, to any person obtaining a copy of this Software to deal in
 * the Software under the copyrights without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * The name and trademarks of copyright holder(s) may NOT be used in
 * advertising or publicity pertaining to the Software or any
 * derivatives without specific, written prior permission.
 */

#ifndef NICIRA_EXT_H
#define NICIRA_EXT_H 1

#include "openflow.h"

/* The following vendor extensions, proposed by Nicira Networks, are not yet
 * ready for standardization (and may never be), so they are not included in
 * openflow.h. */

#define NX_VENDOR_ID 0x00002320

enum nicira_type {
    /* Switch status request.  The request body is an ASCII string that
     * specifies a prefix of the key names to include in the output; if it is
     * the null string, then all key-value pairs are included. */
    NXT_STATUS_REQUEST,

    /* Switch status reply.  The reply body is an ASCII string of key-value
     * pairs in the form "key=value\n". */
    NXT_STATUS_REPLY
};

struct nicira_header {
    struct ofp_header header;
    uint32_t vendor_id;         /* NX_VENDOR_ID. */
    uint32_t subtype;           /* One of NXT_* above. */
};
OFP_ASSERT(sizeof(struct nicira_header) == sizeof(struct ofp_vendor) + 4);

#endif /* nicira-ext.h */