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// SPDX-License-Identifier: MIT
use netlink_packet_core::{NetlinkMessage, NetlinkPayload, NLM_F_REQUEST};
use netlink_packet_generic::{
ctrl::{nlas::GenlCtrlAttrs, GenlCtrl, GenlCtrlCmd},
GenlMessage,
};
use netlink_sys::{protocols::NETLINK_GENERIC, Socket, SocketAddr};
#[test]
fn query_family_id() {
let mut socket = Socket::new(NETLINK_GENERIC).unwrap();
socket.bind_auto().unwrap();
socket.connect(&SocketAddr::new(0, 0)).unwrap();
let mut genlmsg = GenlMessage::from_payload(GenlCtrl {
cmd: GenlCtrlCmd::GetFamily,
nlas: vec![GenlCtrlAttrs::FamilyName("nlctrl".to_owned())],
});
genlmsg.finalize();
let mut nlmsg = NetlinkMessage::from(genlmsg);
nlmsg.header.flags = NLM_F_REQUEST;
nlmsg.finalize();
println!("Buffer length: {}", nlmsg.buffer_len());
let mut txbuf = vec![0u8; nlmsg.buffer_len()];
nlmsg.serialize(&mut txbuf);
socket.send(&txbuf, 0).unwrap();
let (rxbuf, _addr) = socket.recv_from_full().unwrap();
let rx_packet =
<NetlinkMessage<GenlMessage<GenlCtrl>>>::deserialize(&rxbuf).unwrap();
if let NetlinkPayload::InnerMessage(genlmsg) = rx_packet.payload {
if GenlCtrlCmd::NewFamily == genlmsg.payload.cmd {
let family_id = genlmsg
.payload
.nlas
.iter()
.find_map(|nla| {
if let GenlCtrlAttrs::FamilyId(id) = nla {
Some(*id)
} else {
None
}
})
.expect("Cannot find FamilyId attribute");
// nlctrl's family must be 0x10
assert_eq!(0x10, family_id);
} else {
panic!("Invalid payload type: {:?}", genlmsg.payload.cmd);
}
} else {
panic!("Failed to get family ID");
}
}
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