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crate::ix!();
impl PeerManager {
pub fn process_inv_message(self: Arc<Self>,
peer: &Option<Peer>,
msg_maker: &NetMsgMaker,
mut pfrom: &mut AmoWriteGuard<Box<dyn NodeInterface>>,
msg_type: &str,
recv: &mut DataStream,
time_received: &OffsetDateTime /* micros */,
interrupt_msg_proc: &AtomicBool) {
let mut inv: Vec<Inv> = vec![];
recv.stream_into(&mut inv);
if inv.len() > MAX_INV_SZ.try_into().unwrap() {
self.misbehaving(
pfrom.get_id(),
20,
format!("inv message size = {}",inv.len()).as_str()
);
return;
}
// Reject tx INVs when the -blocksonly
// setting is enabled, or this is
// a block-relay-only peer
let mut reject_tx_invs: bool = self.ignore_incoming_txs || !pfrom.has_tx_relay();
// Allow peers with relay permission to
// send data other than blocks in blocks
// only mode
if pfrom.has_permission(NetPermissionFlags::Relay) {
reject_tx_invs = false;
}
let mut main_guard = CS_MAIN.lock();
let current_time = get_datetime();
let mut best_block: Option<&u256> = None;
for inv in inv.iter() {
if interrupt_msg_proc.load(atomic::Ordering::Relaxed) {
return;
}
// Ignore INVs that don't match
// wtxidrelay setting.
//
// Note that orphan parent fetching
// always uses MSG_TX GETDATAs
// regardless of the wtxidrelay
// setting.
//
// This is fine as no INV messages are
// involved in that process.
if create_state(pfrom.get_id()).get().wtxid_relay.load(atomic::Ordering::Relaxed) {
if inv.is_msg_tx() {
continue;
}
} else {
if inv.is_msg_wtx() {
continue;
}
}
if inv.is_msg_blk() {
let already_have: bool
= self.clone().already_have_block(&inv.hash);
log_print!(
LogFlags::NET,
"got inv: %s %s peer=%d\n",
inv.to_string(),
match already_have {
true => "have",
false => "new"
},
pfrom.get_id()
);
self.clone().update_block_availability(
pfrom.get_id(),
&inv.hash
);
if !already_have
&& !IMPORTING.load(atomic::Ordering::Relaxed)
&& !REINDEX.load(atomic::Ordering::Relaxed)
&& !self.is_block_requested(&inv.hash)
{
// Headers-first is the
// primary method of
// announcement on the
// network. If a node fell
// back to sending blocks by
// inv, it's probably for
// a re-org. The final block
// hash provided should be the
// highest, so send
// a getheaders and then fetch
// the blocks we need to catch
// up.
best_block = Some(&inv.hash);
}
} else {
if inv.is_gen_tx_msg() {
if reject_tx_invs {
log_print!(
LogFlags::NET,
"transaction (%s) inv sent in violation of protocol, disconnecting peer=%d\n",
inv.hash.to_string(),
pfrom.get_id()
);
pfrom.mark_for_disconnect();
return;
}
let gtxid: GenTxId = (inv.clone()).into();
let already_have: bool = self.clone().already_have_tx(>xid);
log_print!(
LogFlags::NET,
"got inv: %s %s peer=%d\n",
inv.to_string(),
match already_have {
true => "have",
false => "new"
},
pfrom.get_id()
);
pfrom.add_known_tx(&inv.hash);
if !already_have
&& !self.chainman.get().active_chainstate().is_initial_block_download() {
self.clone().add_tx_announcement(pfrom, >xid, current_time);
}
} else {
log_print!(
LogFlags::NET,
"Unknown inv type \"%s\" received from peer=%d\n",
inv.to_string(),
pfrom.get_id()
);
}
}
}
if best_block.is_some() {
self.connman.get_mut().push_message(
&mut *pfrom,
msg_maker.make(
NetMsgType::GETHEADERS,
&[
&self.chainman.get().active_chain().get_locator(PINDEX_BEST_HEADER.lock().clone()),
best_block.unwrap()
]
)
);
log_print!(
LogFlags::NET,
"getheaders (%d) %s to peer=%d\n",
(*PINDEX_BEST_HEADER.lock()).n_height,
best_block.unwrap().to_string(),
pfrom.get_id()
);
}
}
}