/* $OpenBSD: lldpctl.h,v 1.1 2025/05/02 06:12:53 dlg Exp $ */

/*
 * Copyright (c) 2024 David Gwynne <dlg@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#define LLDP_CTL_PATH           "/var/run/lldp.sock"

enum lldp_ctl_msg {
        LLDP_CTL_MSG_PING,
        LLDP_CTL_MSG_PONG,

        LLDP_CTL_MSG_MSAP_REQ,          /* ctl -> daemon */
        LLDP_CTL_MSG_MSAP,              /* daemon -> ctl */
        LLDP_CTL_MSG_MSAP_END,          /* daemon -> ctl */

        LLDP_CTL_MSG_ACTR_REQ,          /* ctl -> daemon */
        LLDP_CTL_MSG_ACTR,              /* daemon -> ctl */
        LLDP_CTL_MSG_ACTR_END,          /* daemon -> ctl */
};

enum agent_counter {
        statsAgeoutsTotal,
        statsFramesDiscardedTotal,
        statsFramesInErrorsTotal,
        statsFramesInTotal,
        statsFramesOutTotal,
        statsTLVsDiscardedTotal,
        statsTLVsUnrecognisedTotal,
        lldpduLengthErrors,

        AGENT_COUNTER_NCOUNTERS
};

struct lldp_ctl_msg_msap_req {
        char                    ifname[IFNAMSIZ];
        unsigned int            gen;
};

struct lldp_ctl_msg_msap {
        char                    ifname[IFNAMSIZ];
        unsigned int            gen;
        struct ether_addr       saddr;
        struct ether_addr       daddr;

        struct timespec         created;
        struct timespec         updated;

        uint64_t                packets;
        uint64_t                updates;

        /* followed by the pdu */
};

struct lldp_ctl_msg_actrs_req {
        unsigned int            which;
#define LLDP_ACTRS_ALL                  0
#define LLDP_ACTRS_DAEMON               1
#define LLDP_ACTRS_IFACE                2
        char                    ifname[IFNAMSIZ];
};

struct lldp_ctl_msg_actrs {
        char                    ifname[IFNAMSIZ];
        uint64_t                ctrs[AGENT_COUNTER_NCOUNTERS];
};