/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2022 Alexander V. Chernikov <melifaro@FreeBSD.org>
 *
 * 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 AUTHOR 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 AUTHOR 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.
 */

/*
 * Interface-related (RTM_<NEW|DEL|GET|SET>LINK) message header and attributes.
 */

#ifndef _NETLINK_ROUTE_INTERFACE_H_
#define _NETLINK_ROUTE_INTERFACE_H_

/* Base header for all of the relevant messages */
struct ifinfomsg {
        unsigned char   ifi_family;     /* not used */
        unsigned char   __ifi_pad;
        unsigned short  ifi_type;       /* IFT_* (net/if_types.h) */
        int             ifi_index;      /* Interface index */
        unsigned        ifi_flags;      /* IFF_* flags */
        unsigned        ifi_change;     /* IFF_* change mask */
};

/* Linux-specific link-level state flag */
#define IFF_LOWER_UP    IFF_NETLINK_1

#ifndef _KERNEL
/* Compatilbility helpers */
#define _IFINFO_HDRLEN          ((int)sizeof(struct ifinfomsg))
#define IFLA_RTA(_ifi)          ((struct rtattr *)NL_ITEM_DATA(_ifi, _IFINFO_HDRLEN))
#define IFLA_PAYLOAD(_ifi)      NLMSG_PAYLOAD(_ifi, _IFINFO_HDRLEN)
#endif

enum {
        IFLA_UNSPEC     = 0,
        IFLA_ADDRESS    = 1,    /* binary: Link-level address (MAC) */
#define IFLA_ADDRESS IFLA_ADDRESS
        IFLA_BROADCAST  = 2,    /* binary: link-level broadcast address */
#define IFLA_BROADCAST IFLA_BROADCAST
        IFLA_IFNAME     = 3,    /* string: Interface name */
#define IFLA_IFNAME IFLA_IFNAME
        IFLA_MTU        = 4,    /* u32: Current interface L3 mtu */
#define IFLA_MTU IFLA_MTU
        IFLA_LINK       = 5,    /* u32: interface index */
#define IFLA_LINK IFLA_LINK
        IFLA_QDISC      = 6,    /* string: Queing policy (not supported) */
#define IFLA_QDISC IFLA_QDISC
        IFLA_STATS      = 7,    /* Interface counters */
#define IFLA_STATS IFLA_STATS
        IFLA_COST       = 8,    /* not supported */
#define IFLA_COST IFLA_COST
        IFLA_PRIORITY   = 9,    /* not supported */
#define IFLA_PRIORITY IFLA_PRIORITY
        IFLA_MASTER     = 10,   /* u32: parent interface ifindex */
#define IFLA_MASTER IFLA_MASTER
        IFLA_WIRELESS   = 11,   /* not supported */
#define IFLA_WIRELESS IFLA_WIRELESS
        IFLA_PROTINFO   = 12,   /* protocol-specific data */
#define IFLA_PROTINFO IFLA_PROTINFO
        IFLA_TXQLEN     = 13,   /* u32: transmit queue length */
#define IFLA_TXQLEN IFLA_TXQLEN
        IFLA_MAP        = 14,   /* not supported */
#define IFLA_MAP IFLA_MAP
        IFLA_WEIGHT     = 15,   /* not supported */
#define IFLA_WEIGHT IFLA_WEIGHT
        IFLA_OPERSTATE  = 16,   /* u8: ifOperStatus per RFC 2863 */
#define IFLA_OPERSTATE IFLA_OPERSTATE
        IFLA_LINKMODE   = 17,   /* u8: ifmedia (not supported) */
#define IFLA_LINKMODE IFLA_LINKMODE
        IFLA_LINKINFO   = 18,   /* nested: IFLA_INFO_ */
#define IFLA_LINKINFO IFLA_LINKINFO
        IFLA_NET_NS_PID = 19,   /* u32: vnet id (not supported) */
#define IFLA_NET_NS_PID IFLA_NET_NS_PID
        IFLA_IFALIAS    = 20,   /* string: interface description */
#define IFLA_IFALIAS IFLA_IFALIAS
        IFLA_NUM_VF     = 21,   /* not supported */
#define IFLA_NUM_VF IFLA_NUM_VF
        IFLA_VFINFO_LIST= 22,   /* not supported */
#define IFLA_VFINFO_LIST IFLA_VFINFO_LIST
        IFLA_STATS64    = 23,   /* rtnl_link_stats64: iface stats */
#define IFLA_STATS64 IFLA_STATS64
        IFLA_VF_PORTS,
        IFLA_PORT_SELF,
        IFLA_AF_SPEC,
        IFLA_GROUP, /* Group the device belongs to */
        IFLA_NET_NS_FD,
        IFLA_EXT_MASK,    /* Extended info mask, VFs, etc */
        IFLA_PROMISCUITY, /* Promiscuity count: > 0 means acts PROMISC */
#define IFLA_PROMISCUITY IFLA_PROMISCUITY
        IFLA_NUM_TX_QUEUES,
        IFLA_NUM_RX_QUEUES,
        IFLA_CARRIER,
        IFLA_PHYS_PORT_ID,
        IFLA_CARRIER_CHANGES,
        IFLA_PHYS_SWITCH_ID,
        IFLA_LINK_NETNSID,
        IFLA_PHYS_PORT_NAME,
        IFLA_PROTO_DOWN,
        IFLA_GSO_MAX_SEGS,
        IFLA_GSO_MAX_SIZE,
        IFLA_PAD,
        IFLA_XDP,
        IFLA_EVENT,
        IFLA_NEW_NETNSID,
        IFLA_IF_NETNSID,
        IFLA_TARGET_NETNSID = IFLA_IF_NETNSID, /* new alias */
        IFLA_CARRIER_UP_COUNT,
        IFLA_CARRIER_DOWN_COUNT,
        IFLA_NEW_IFINDEX,
        IFLA_MIN_MTU,
        IFLA_MAX_MTU,
        IFLA_PROP_LIST,
        IFLA_ALT_IFNAME, /* Alternative ifname */
        IFLA_PERM_ADDRESS,
        IFLA_PROTO_DOWN_REASON,
        IFLA_PARENT_DEV_NAME,
        IFLA_PARENT_DEV_BUS_NAME,
        IFLA_GRO_MAX_SIZE,
        IFLA_TSO_MAX_SEGS,
        IFLA_ALLMULTI,
        IFLA_DEVLINK_PORT,
        IFLA_GSO_IPV4_MAX_SIZE,
        IFLA_GRO_IPV4_MAX_SIZE,
        IFLA_FREEBSD,
        __IFLA_MAX
};
#define IFLA_MAX (__IFLA_MAX - 1)

enum {
        IFLAF_UNSPEC            = 0,
        IFLAF_ORIG_IFNAME       = 1,    /* string, original interface name at creation */
        IFLAF_ORIG_HWADDR       = 2,    /* binary, original hardware address */
        IFLAF_CAPS              = 3,    /* bitset, interface capabilities */
        __IFLAF_MAX
};
#define IFLAF_MAX (__IFLAF_MAX - 1)

/*
 * Attributes that can be used as filters:
 *  IFLA_IFNAME, IFLA_GROUP, IFLA_ALT_IFNAME
 * Headers that can be used as filters:
 *  ifi_index, ifi_type
 */

/*
 * IFLA_OPERSTATE.
 * The values below represent the possible
 * states of ifOperStatus defined by RFC 2863
 */
enum {
        IF_OPER_UNKNOWN         = 0, /* status can not be determined */
        IF_OPER_NOTPRESENT      = 1, /* some (hardware) component not present */
        IF_OPER_DOWN            = 2, /* down */
        IF_OPER_LOWERLAYERDOWN  = 3, /* some lower-level interface is down */
        IF_OPER_TESTING         = 4, /* in some test mode */
        IF_OPER_DORMANT         = 5, /* "up" but waiting for some condition (802.1X) */
        IF_OPER_UP              = 6, /* ready to pass packets */
};

/* IFLA_STATS */
struct rtnl_link_stats {
        uint32_t rx_packets;    /* total RX packets (IFCOUNTER_IPACKETS) */
        uint32_t tx_packets;    /* total TX packets (IFCOUNTER_OPACKETS) */
        uint32_t rx_bytes;      /* total RX bytes (IFCOUNTER_IBYTES) */
        uint32_t tx_bytes;      /* total TX bytes (IFCOUNTER_OBYTES) */
        uint32_t rx_errors;     /* RX errors (IFCOUNTER_IERRORS) */
        uint32_t tx_errors;     /* RX errors (IFCOUNTER_OERRORS) */
        uint32_t rx_dropped;    /* RX drop (no space in ring/no bufs) (IFCOUNTER_IQDROPS) */
        uint32_t tx_dropped;    /* TX drop (IFCOUNTER_OQDROPS) */
        uint32_t multicast;     /* RX multicast packets (IFCOUNTER_IMCASTS) */
        uint32_t collisions;    /* not supported */
        uint32_t rx_length_errors;      /* not supported */
        uint32_t rx_over_errors;        /* not supported */
        uint32_t rx_crc_errors;         /* not supported */
        uint32_t rx_frame_errors;       /* not supported */
        uint32_t rx_fifo_errors;        /* not supported */
        uint32_t rx_missed_errors;      /* not supported */
        uint32_t tx_aborted_errors;     /* not supported */
        uint32_t tx_carrier_errors;     /* not supported */
        uint32_t tx_fifo_errors;        /* not supported */
        uint32_t tx_heartbeat_errors;   /* not supported */
        uint32_t tx_window_errors;      /* not supported */
        uint32_t rx_compressed;         /* not supported */
        uint32_t tx_compressed;         /* not supported */
        uint32_t rx_nohandler;  /* dropped due to no proto handler (IFCOUNTER_NOPROTO) */
};

/* IFLA_STATS64 */
struct rtnl_link_stats64 {
        uint64_t rx_packets;    /* total RX packets (IFCOUNTER_IPACKETS) */
        uint64_t tx_packets;    /* total TX packets (IFCOUNTER_OPACKETS) */
        uint64_t rx_bytes;      /* total RX bytes (IFCOUNTER_IBYTES) */
        uint64_t tx_bytes;      /* total TX bytes (IFCOUNTER_OBYTES) */
        uint64_t rx_errors;     /* RX errors (IFCOUNTER_IERRORS) */
        uint64_t tx_errors;     /* RX errors (IFCOUNTER_OERRORS) */
        uint64_t rx_dropped;    /* RX drop (no space in ring/no bufs) (IFCOUNTER_IQDROPS) */
        uint64_t tx_dropped;    /* TX drop (IFCOUNTER_OQDROPS) */
        uint64_t multicast;     /* RX multicast packets (IFCOUNTER_IMCASTS) */
        uint64_t collisions;    /* not supported */
        uint64_t rx_length_errors;      /* not supported */
        uint64_t rx_over_errors;        /* not supported */
        uint64_t rx_crc_errors;         /* not supported */
        uint64_t rx_frame_errors;       /* not supported */
        uint64_t rx_fifo_errors;        /* not supported */
        uint64_t rx_missed_errors;      /* not supported */
        uint64_t tx_aborted_errors;     /* not supported */
        uint64_t tx_carrier_errors;     /* not supported */
        uint64_t tx_fifo_errors;        /* not supported */
        uint64_t tx_heartbeat_errors;   /* not supported */
        uint64_t tx_window_errors;      /* not supported */
        uint64_t rx_compressed;         /* not supported */
        uint64_t tx_compressed;         /* not supported */
        uint64_t rx_nohandler;  /* dropped due to no proto handler (IFCOUNTER_NOPROTO) */
};

/* IFLA_LINKINFO child nlattr types */
enum {
        IFLA_INFO_UNSPEC,
        IFLA_INFO_KIND          = 1, /* string, link type ("vlan") */
        IFLA_INFO_DATA          = 2, /* Per-link-type custom data */
        IFLA_INFO_XSTATS        = 3,
        IFLA_INFO_SLAVE_KIND    = 4,
        IFLA_INFO_SLAVE_DATA    = 5,
        __IFLA_INFO_MAX,
};
#define IFLA_INFO_MAX   (__IFLA_INFO_MAX - 1)

/* Encapsulation Types */
enum {
        IFLA_TUNNEL_NONE,
        IFLA_TUNNEL_GRE_UDP,    /* GRE UDP Encapsulation */
        __IFLA_TUNNEL_MAX,
};

#define IFLA_TUNNEL_MAX (__IFLA_TUNNEL_MAX - 1)

/* IFLA_INFO_DATA vlan attributes */
enum {
        IFLA_VLAN_UNSPEC,
        IFLA_VLAN_ID,
        IFLA_VLAN_FLAGS,
        IFLA_VLAN_EGRESS_QOS,
        IFLA_VLAN_INGRESS_QOS,
        IFLA_VLAN_PROTOCOL,
        __IFLA_VLAN_MAX,
};

#define IFLA_VLAN_MAX   (__IFLA_VLAN_MAX - 1)
struct ifla_vlan_flags {
        uint32_t flags;
        uint32_t mask;
};

/* IFLA_INFO_DATA gif attributes */
enum {
        IFLA_IPTUN_UNSPEC,
        IFLA_IPTUN_LOCAL,
        IFLA_IPTUN_REMOTE,
        IFLA_IPTUN_FLAGS,
        __IFLA_IPTUN_MAX,
};
#define IFLA_IPTUN_MAX  (__IFLA_IPTUN_MAX - 1)

/* IFLA_INFO_DATA gre attributes */
enum {
        IFLA_GRE_UNSPEC,
        IFLA_GRE_LOCAL,
        IFLA_GRE_REMOTE,
        IFLA_GRE_FLAGS,
        IFLA_GRE_OKEY,
        IFLA_GRE_ENCAP_TYPE,
        IFLA_GRE_ENCAP_SPORT,
        __IFLA_GRE_MAX,
};

#define IFLA_GRE_MAX    (__IFLA_GRE_MAX - 1)

/* IFLA_INFO_DATA geneve attributes */
enum {
        IFLA_GENEVE_UNSPEC,
        IFLA_GENEVE_ID,
        IFLA_GENEVE_PROTOCOL,
        IFLA_GENEVE_LOCAL,
        IFLA_GENEVE_REMOTE,
        IFLA_GENEVE_LOCAL_PORT,
        IFLA_GENEVE_PORT,
        IFLA_GENEVE_PORT_RANGE,
        IFLA_GENEVE_DF,
        IFLA_GENEVE_TTL,
        IFLA_GENEVE_TTL_INHERIT,
        IFLA_GENEVE_DSCP_INHERIT,
        IFLA_GENEVE_COLLECT_METADATA,
        IFLA_GENEVE_FTABLE_LEARN,
        IFLA_GENEVE_FTABLE_FLUSH,
        IFLA_GENEVE_FTABLE_MAX,
        IFLA_GENEVE_FTABLE_TIMEOUT,
        IFLA_GENEVE_FTABLE_COUNT,
        IFLA_GENEVE_FTABLE_NOSPACE_CNT,
        IFLA_GENEVE_FTABLE_LOCK_UP_FAIL_CNT,
        IFLA_GENEVE_MC_IFNAME,
        IFLA_GENEVE_MC_IFINDEX,
        IFLA_GENEVE_TXCSUM_CNT,
        IFLA_GENEVE_TSO_CNT,
        IFLA_GENEVE_RXCSUM_CNT,
        __IFLA_GENEVE_MAX,
};
#define IFLA_GENEVE_MAX (__IFLA_GENEVE_MAX - 1)

enum ifla_geneve_df {
        IFLA_GENEVE_DF_UNSET,
        IFLA_GENEVE_DF_SET,
        IFLA_GENEVE_DF_INHERIT,
        __IFLA_GENEVE_DF_MAX,
};
#define IFLA_GENEVE_DF_MAX      (__IFLA_GENEVE_DF_MAX - 1)

struct ifla_geneve_port_range {
        uint16_t low;
        uint16_t high;
};

#endif