Allow Axum to use HTTP2 if it finds a compatible TLS connection.

src/rust/Cargo.lock

@@ -166,6 +166,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
+
 [[package]]
 name = "autocfg"
 version = "1.3.0"
@@ -1157,6 +1163,25 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "h2"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa82e28a107a8cc405f0839610bdc9b15f1e25ec7d696aa5cf173edbcb1486ab"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "http 1.1.0",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
 [[package]]
 name = "half"
 version = "1.8.3"
@@ -1306,7 +1331,7 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2",
+ "h2 0.3.26",
  "http 0.2.12",
  "http-body 0.4.6",
  "httparse",
@@ -1329,6 +1354,7 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
+ "h2 0.4.5",
  "http 1.1.0",
  "http-body 1.0.0",
  "httparse",
@@ -2614,7 +2640,7 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "h2",
+ "h2 0.3.26",
  "http 0.2.12",
  "http-body 0.4.6",
  "hyper 0.14.29",

src/rust/lqosd/Cargo.toml

@@ -37,7 +37,7 @@ ip_network_table = {  workspace = true }
 ip_network = { workspace = true }
 zerocopy = { workspace = true }
 fxhash = "0.2.1"
-axum = { version = "0.7.5", features = ["ws"] }
+axum = { version = "0.7.5", features = ["ws", "http2"] }
 axum-extra = {  version = "0.9.3", features = ["cookie", "cookie-private"] }
 tower-http = { version = "0.5.2", features = ["fs"] }
 strum = {  version = "0.26.3", features = ["derive"] }