diff --git a/Cargo.lock b/Cargo.lock
index b16781dced..aaf4c8029d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2525,6 +2525,7 @@ dependencies = [
  "iroh-net",
  "iroh-test",
  "lru",
+ "mainline",
  "parking_lot",
  "pkarr",
  "rcgen 0.12.1",
@@ -2545,6 +2546,7 @@ dependencies = [
  "tower_governor",
  "tracing",
  "tracing-subscriber",
+ "ttl_cache",
  "url",
  "z32",
 ]
@@ -2873,6 +2875,26 @@ dependencies = [
  "linked-hash-map",
 ]
 
+[[package]]
+name = "mainline"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "907bd8136f5eb985f3c0faa70051d4809c7e0cfbcc5700bec2ceb5df0de118ca"
+dependencies = [
+ "bytes",
+ "crc",
+ "ed25519-dalek",
+ "flume",
+ "lru",
+ "rand",
+ "serde",
+ "serde_bencode",
+ "serde_bytes",
+ "sha1_smol",
+ "thiserror",
+ "tracing",
+]
+
 [[package]]
 name = "match_cfg"
 version = "0.1.0"
@@ -3501,6 +3523,7 @@ checksum = "242ae92dfb9d2ba3aaa9caf4723e72043bc50729ad05a763771771ba03196ffb"
 dependencies = [
  "bytes",
  "ed25519-dalek",
+ "mainline",
  "rand",
  "reqwest",
  "self_cell",
@@ -4560,6 +4583,25 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_bencode"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a70dfc7b7438b99896e7f8992363ab8e2c4ba26aa5ec675d32d1c3c2c33d413e"
+dependencies = [
+ "serde",
+ "serde_bytes",
+]
+
+[[package]]
+name = "serde_bytes"
+version = "0.11.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b8497c313fd43ab992087548117643f6fcd935cbf36f176ffda0aacf9591734"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.198"
@@ -4673,6 +4715,12 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "sha1_smol"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae1a47186c03a32177042e55dbc5fd5aee900b8e0069a8d70fba96a9375cd012"
+
 [[package]]
 name = "sha2"
 version = "0.10.8"