netlink-packet-route 0.30.0

netlink packet types
Documentation
// SPDX-License-Identifier: MIT

use netlink_packet_core::{Emitable, Parseable};

use crate::{
    link::{
        link_flag::LinkFlags, AfSpecInet, AfSpecInet6, AfSpecUnspec,
        Inet6CacheInfo, Inet6DevConf, Inet6IfaceFlags, InetDevConf, InfoData,
        InfoKind, InfoMacVtap, LinkAttribute, LinkHeader, LinkInfo,
        LinkLayerType, LinkMessage, LinkMessageBuffer, LinkMode, LinkXdp,
        MacVtapFlags, MacVtapMacAddressMode, MacVtapMode, Map, State, Stats,
        Stats64, XdpAttached,
    },
    AddressFamily,
};

#[test]
fn test_macvtap_link_info() {
    let raw: Vec<u8> = vec![
        0x00, 0x00, 0x01, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x02, 0x10, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x03, 0x00, 0x6d, 0x74, 0x61, 0x70,
        0x30, 0x00, 0x00, 0x00, 0x08, 0x00, 0x0d, 0x00, 0xf4, 0x01, 0x00, 0x00,
        0x05, 0x00, 0x10, 0x00, 0x02, 0x00, 0x00, 0x00, 0x05, 0x00, 0x11, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x04, 0x00, 0xdc, 0x05, 0x00, 0x00,
        0x08, 0x00, 0x32, 0x00, 0x44, 0x00, 0x00, 0x00, 0x08, 0x00, 0x33, 0x00,
        0x00, 0x09, 0x00, 0x00, 0x08, 0x00, 0x1b, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x08, 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x3d, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x1f, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x08, 0x00, 0x28, 0x00, 0xff, 0xff, 0x00, 0x00, 0x08, 0x00, 0x29, 0x00,
        0x00, 0x00, 0x01, 0x00, 0x08, 0x00, 0x3a, 0x00, 0x00, 0x00, 0x01, 0x00,
        0x08, 0x00, 0x3f, 0x00, 0x00, 0x00, 0x01, 0x00, 0x08, 0x00, 0x40, 0x00,
        0x00, 0x00, 0x01, 0x00, 0x08, 0x00, 0x3b, 0x00, 0x00, 0x00, 0x01, 0x00,
        0x08, 0x00, 0x3c, 0x00, 0xff, 0xff, 0x00, 0x00, 0x08, 0x00, 0x20, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x05, 0x00, 0x21, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x0d, 0x00, 0x06, 0x00, 0x66, 0x71, 0x5f, 0x63, 0x6f, 0x64, 0x65, 0x6c,
        0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x23, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x08, 0x00, 0x2f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x30, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x27, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x24, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x0a, 0x00, 0x01, 0x00, 0x92, 0x41, 0xed, 0x4c, 0x60, 0x97, 0x00, 0x00,
        0x0a, 0x00, 0x02, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
        0xcc, 0x00, 0x17, 0x00, 0x14, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9c, 0xa3, 0x04, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x81, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x02, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x64, 0x00, 0x07, 0x00, 0x14, 0x02, 0x00, 0x00, 0x32, 0x00, 0x00, 0x00,
        0x9c, 0xa3, 0x04, 0x00, 0x81, 0x17, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x14, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x2b, 0x00, 0x05, 0x00, 0x02, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x3c, 0x00, 0x12, 0x00, 0x0c, 0x00, 0x01, 0x00,
        0x6d, 0x61, 0x63, 0x76, 0x74, 0x61, 0x70, 0x00, 0x2c, 0x00, 0x02, 0x00,
        0x08, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x06, 0x00, 0x02, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x08, 0x00, 0x07, 0x00, 0xe8, 0x03, 0x00, 0x00, 0x08, 0x00, 0x08, 0x00,
        0xe8, 0x03, 0x00, 0x00, 0x08, 0x00, 0x05, 0x00, 0x03, 0x00, 0x00, 0x00,
        0xa4, 0x01, 0x1a, 0x00, 0x8c, 0x00, 0x02, 0x00, 0x88, 0x00, 0x01, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x27, 0x00, 0x00,
        0xe8, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x14, 0x01, 0x0a, 0x00, 0x08, 0x00, 0x01, 0x00, 0xc0, 0x00, 0x00, 0x00,
        0x14, 0x00, 0x05, 0x00, 0xff, 0xff, 0x00, 0x00, 0x08, 0xb1, 0x10, 0x01,
        0xfd, 0xa4, 0x00, 0x00, 0xe8, 0x03, 0x00, 0x00, 0xf4, 0x00, 0x02, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0xdc, 0x05, 0x00, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x01, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xa0, 0x0f, 0x00, 0x00,
        0xe8, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x3a, 0x09, 0x00,
        0x80, 0x51, 0x01, 0x00, 0x03, 0x00, 0x00, 0x00, 0x58, 0x02, 0x00, 0x00,
        0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x60, 0xea, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x10, 0x27, 0x00, 0x00, 0xe8, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x80, 0xee, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x04, 0x00, 0x3e, 0x80,
    ];

    let expected = LinkMessage {
        header: LinkHeader {
            interface_family: AddressFamily::Unspec,
            index: 12,
            link_layer_type: LinkLayerType::Ether,
            flags: LinkFlags::Broadcast | LinkFlags::Multicast,
            change_mask: LinkFlags::empty(),
        },
        attributes: vec![
            LinkAttribute::IfName("mtap0".to_string()),
            LinkAttribute::TxQueueLen(500),
            LinkAttribute::OperState(State::Down),
            LinkAttribute::Mode(LinkMode::Default),
            LinkAttribute::Mtu(1500),
            LinkAttribute::MinMtu(68),
            LinkAttribute::MaxMtu(2304),
            LinkAttribute::Group(0),
            LinkAttribute::Promiscuity(0),
            LinkAttribute::AllMulticast(0),
            LinkAttribute::NumTxQueues(1),
            LinkAttribute::GsoMaxSegs(65535),
            LinkAttribute::GsoMaxSize(65536),
            LinkAttribute::GroMaxSize(65536),
            LinkAttribute::GsoIpv4MaxSize(65536),
            LinkAttribute::GroIpv4MaxSize(65536),
            LinkAttribute::TsoMaxSize(65536),
            LinkAttribute::TsoMaxSegs(65535),
            LinkAttribute::NumRxQueues(1),
            LinkAttribute::Carrier(1),
            LinkAttribute::Qdisc("fq_codel".to_string()),
            LinkAttribute::CarrierChanges(0),
            LinkAttribute::CarrierUpCount(0),
            LinkAttribute::CarrierDownCount(0),
            LinkAttribute::ProtoDown(0),
            LinkAttribute::Map(Map {
                memory_start: 0,
                memory_end: 0,
                base_address: 0,
                irq: 0,
                dma: 0,
                port: 0,
            }),
            LinkAttribute::Address(vec![146, 65, 237, 76, 96, 151]),
            LinkAttribute::Broadcast(vec![255, 255, 255, 255, 255, 255]),
            LinkAttribute::Stats64(Stats64 {
                rx_packets: 532,
                tx_packets: 50,
                rx_bytes: 304028,
                tx_bytes: 6017,
                rx_errors: 0,
                tx_errors: 0,
                rx_dropped: 0,
                tx_dropped: 0,
                multicast: 532,
                collisions: 0,
                rx_length_errors: 0,
                rx_over_errors: 0,
                rx_crc_errors: 0,
                rx_frame_errors: 0,
                rx_fifo_errors: 0,
                rx_missed_errors: 0,
                tx_aborted_errors: 0,
                tx_carrier_errors: 0,
                tx_fifo_errors: 0,
                tx_heartbeat_errors: 0,
                tx_window_errors: 0,
                rx_compressed: 0,
                tx_compressed: 0,
                rx_nohandler: 0,
                rx_otherhost_dropped: 0,
            }),
            LinkAttribute::Stats(Stats {
                rx_packets: 532,
                tx_packets: 50,
                rx_bytes: 304028,
                tx_bytes: 6017,
                rx_errors: 0,
                tx_errors: 0,
                rx_dropped: 0,
                tx_dropped: 0,
                multicast: 532,
                collisions: 0,
                rx_length_errors: 0,
                rx_over_errors: 0,
                rx_crc_errors: 0,
                rx_frame_errors: 0,
                rx_fifo_errors: 0,
                rx_missed_errors: 0,
                tx_aborted_errors: 0,
                tx_carrier_errors: 0,
                tx_fifo_errors: 0,
                tx_heartbeat_errors: 0,
                tx_window_errors: 0,
                rx_compressed: 0,
                tx_compressed: 0,
                rx_nohandler: 0,
            }),
            LinkAttribute::Xdp(vec![LinkXdp::Attached(XdpAttached::None)]),
            LinkAttribute::LinkInfo(vec![
                LinkInfo::Kind(InfoKind::MacVtap),
                LinkInfo::Data(InfoData::MacVtap(vec![
                    InfoMacVtap::Mode(MacVtapMode::Private),
                    InfoMacVtap::Flags(MacVtapFlags::empty()),
                    InfoMacVtap::MacAddrCount(0),
                    InfoMacVtap::BcQueueLen(1000),
                    InfoMacVtap::BcQueueLenUsed(1000),
                ])),
            ]),
            LinkAttribute::Link(3),
            LinkAttribute::AfSpecUnspec(vec![
                AfSpecUnspec::Inet(vec![AfSpecInet::DevConf(InetDevConf {
                    forwarding: 1,
                    mc_forwarding: 0,
                    proxy_arp: 0,
                    accept_redirects: 1,
                    secure_redirects: 1,
                    send_redirects: 1,
                    shared_media: 1,
                    rp_filter: 2,
                    accept_source_route: 0,
                    bootp_relay: 0,
                    log_martians: 0,
                    tag: 0,
                    arpfilter: 0,
                    medium_id: 0,
                    noxfrm: 0,
                    nopolicy: 0,
                    force_igmp_version: 0,
                    arp_announce: 0,
                    arp_ignore: 0,
                    promote_secondaries: 1,
                    arp_accept: 0,
                    arp_notify: 0,
                    accept_local: 0,
                    src_vmark: 0,
                    proxy_arp_pvlan: 0,
                    route_localnet: 0,
                    igmpv2_unsolicited_report_interval: 10000,
                    igmpv3_unsolicited_report_interval: 1000,
                    ignore_routes_with_linkdown: 0,
                    drop_unicast_in_l2_multicast: 0,
                    drop_gratuitous_arp: 0,
                    bc_forwarding: 0,
                    arp_evict_nocarrier: 1,
                })]),
                AfSpecUnspec::Inet6(vec![
                    AfSpecInet6::Flags(
                        Inet6IfaceFlags::Otherconf | Inet6IfaceFlags::RaManaged,
                    ),
                    AfSpecInet6::CacheInfo(Inet6CacheInfo {
                        max_reasm_len: 65535,
                        tstamp: 17871112,
                        reachable_time: 42237,
                        retrans_time: 1000,
                    }),
                    AfSpecInet6::DevConf(Inet6DevConf {
                        forwarding: 0,
                        hoplimit: 64,
                        mtu6: 1500,
                        accept_ra: 1,
                        accept_redirects: 1,
                        autoconf: 1,
                        dad_transmits: 1,
                        rtr_solicits: -1,
                        rtr_solicit_interval: 4000,
                        rtr_solicit_delay: 1000,
                        use_tempaddr: 0,
                        temp_valid_lft: 604800,
                        temp_prefered_lft: 86400,
                        regen_max_retry: 3,
                        max_desync_factor: 600,
                        max_addresses: 16,
                        force_mld_version: 0,
                        accept_ra_defrtr: 1,
                        accept_ra_pinfo: 1,
                        accept_ra_rtr_pref: 1,
                        rtr_probe_interval: 60000,
                        accept_ra_rt_info_max_plen: 0,
                        proxy_ndp: 0,
                        optimistic_dad: 0,
                        accept_source_route: 0,
                        mc_forwarding: 0,
                        disable_ipv6: 0,
                        accept_dad: 1,
                        force_tllao: 0,
                        ndisc_notify: 0,
                        mldv1_unsolicited_report_interval: 10000,
                        mldv2_unsolicited_report_interval: 1000,
                        suppress_frag_ndisc: 1,
                        accept_ra_from_local: 0,
                        use_optimistic: 0,
                        accept_ra_mtu: 1,
                        stable_secret: 0,
                        use_oif_addrs_only: 0,
                        accept_ra_min_hop_limit: 1,
                        ignore_routes_with_linkdown: 0,
                        drop_unicast_in_l2_multicast: 0,
                        drop_unsolicited_na: 0,
                        keep_addr_on_down: 0,
                        rtr_solicit_max_interval: 3600000,
                        seg6_enabled: 0,
                        seg6_require_hmac: 0,
                        enhanced_dad: 1,
                        addr_gen_mode: 0,
                        disable_policy: 0,
                        accept_ra_rt_info_min_plen: 0,
                        ndisc_tclass: 0,
                        rpl_seg_enabled: 0,
                        ra_defrtr_metric: 1024,
                        ioam6_enabled: 0,
                        ioam6_id: 65535,
                        ioam6_id_wide: -1,
                        ndisc_evict_nocarrier: 1,
                        accept_untracked_na: 0,
                        accept_ra_min_lft: 0,
                        force_forwarding: 0,
                    }),
                ]),
            ]),
            LinkAttribute::DevlinkPort(vec![]),
        ],
    };

    assert_eq!(
        expected,
        LinkMessage::parse(&LinkMessageBuffer::new(&raw)).unwrap()
    );

    let mut buf = vec![0; expected.buffer_len()];

    expected.emit(&mut buf);

    assert_eq!(buf, raw);
}

// nlmon of command:
//      ip link set macvtap0 type macvtap \
//          macaddr add 00:23:45:67:89:1e
//
// With modification on the IFLA_INFO_KIND length because iproute has bug on
// it.
#[test]
fn test_macvtap_modify_mac_addr_mode() {
    let raw: Vec<u8> = vec![
        0x00, 0x00, 0x00, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x12, 0x00, 0x0c, 0x00, 0x01, 0x00,
        0x6d, 0x61, 0x63, 0x76, 0x74, 0x61, 0x70, 0x00, 0x18, 0x00, 0x02, 0x00,
        0x08, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00, 0x04, 0x00,
        0x00, 0x23, 0x45, 0x67, 0x89, 0x1e, 0x00, 0x00,
    ];

    let expected = LinkMessage {
        header: LinkHeader {
            interface_family: AddressFamily::Unspec,
            index: 224,
            link_layer_type: LinkLayerType::Netrom,
            flags: LinkFlags::empty(),
            change_mask: LinkFlags::empty(),
        },
        attributes: vec![LinkAttribute::LinkInfo(vec![
            LinkInfo::Kind(InfoKind::MacVtap),
            LinkInfo::Data(InfoData::MacVtap(vec![
                InfoMacVtap::MacAddrMode(MacVtapMacAddressMode::Add),
                InfoMacVtap::MacAddr([0, 35, 69, 103, 137, 30]),
            ])),
        ])],
    };

    assert_eq!(
        expected,
        LinkMessage::parse(&LinkMessageBuffer::new(&raw)).unwrap()
    );

    let mut buf = vec![0; expected.buffer_len()];

    expected.emit(&mut buf);

    assert_eq!(buf, raw);
}