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feat(network): implement Bitswap protocol support for libp2p network backend #9916

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feat(network): implement Bitswap protocol support for libp2p network backend #9916

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32184ea
network(libp2p): register Bitswap (/ipfs/bitswap/1.2.0) when --ipfs-s…
yashranaway Oct 2, 2025
9f60dd9
Merge branch 'paritytech:master' into master
yashranaway Oct 15, 2025
4ed3c47
network: Add proper Bitswap NetworkBehaviour implementation
yashranaway Oct 15, 2025
b75d9ee
bitswap: Update handle_message function to accept a slice instead of …
yashranaway Oct 16, 2025
4ebf997
Merge branch 'master' into master
yashranaway Oct 16, 2025
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1 change: 1 addition & 0 deletions polkadot-bulletin-chain
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Submodule polkadot-bulletin-chain added at e9e2f8
9 changes: 5 additions & 4 deletions substrate/client/network/src/bitswap/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,7 @@ const MAX_WANTED_BLOCKS: usize = 16;
/// Bitswap protocol name
const PROTOCOL_NAME: &'static str = "/ipfs/bitswap/1.2.0";


/// Prefix represents all metadata of a CID, without the actual content.
#[derive(PartialEq, Eq, Clone, Debug)]
struct Prefix {
Expand Down Expand Up @@ -121,7 +122,7 @@ impl<B: BlockT> BitswapRequestHandler<B> {
while let Some(request) = self.request_receiver.next().await {
let IncomingRequest { peer, payload, pending_response } = request;

match self.handle_message(&peer, &payload) {
match self.handle_message(&peer, payload.as_slice()) {
Ok(response) => {
let response = OutgoingResponse {
result: Ok(response),
Expand All @@ -135,7 +136,7 @@ impl<B: BlockT> BitswapRequestHandler<B> {
},
Err(_) => debug!(
target: LOG_TARGET,
"Failed to handle light client request from {peer}: {}",
"Failed to handle bitswap request from {peer}: {}",
BitswapError::SendResponse,
),
}
Expand Down Expand Up @@ -167,9 +168,9 @@ impl<B: BlockT> BitswapRequestHandler<B> {
fn handle_message(
&mut self,
peer: &PeerId,
payload: &Vec<u8>,
payload: &[u8],
) -> Result<Vec<u8>, BitswapError> {
let request = schema::bitswap::Message::decode(&payload[..])?;
let request = schema::bitswap::Message::decode(payload)?;

trace!(target: LOG_TARGET, "Received request: {:?} from {}", request, peer);

Expand Down
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