add missing new lib

app-libs/parentchain-specs/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "ita-parentchain-specs"
+version = "0.1.0"
+authors = ["Integritee AG <[email protected]>"]
+edition = "2021"
+
+[dependencies]
+hex = { version = "0.4.3", default-features = false, features = ["alloc"] }
+itp-types = { path = "../../core-primitives/types", default-features = false }
+log = { version = "0.4", default-features = false }
+
+[features]
+default = ["std"]
+std = [
+    "hex/std",
+    "log/std",
+]

app-libs/parentchain-specs/src/lib.rs

@@ -0,0 +1,56 @@
+/*
+	Copyright 2021 Integritee AG
+
+	Licensed under the Apache License, Version 2.0 (the "License");
+	you may not use this file except in compliance with the License.
+	You may obtain a copy of the License at
+
+		http://www.apache.org/licenses/LICENSE-2.0
+
+	Unless required by applicable law or agreed to in writing, software
+	distributed under the License is distributed on an "AS IS" BASIS,
+	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+	See the License for the specific language governing permissions and
+	limitations under the License.
+
+*/
+// chain specs which can't be derived from chain state trustlessly by the light client
+// we hardcode them here so they can't be changed by an adversarial enclave operator
+
+#![cfg_attr(all(not(target_env = "sgx"), not(feature = "std")), no_std)]
+#![cfg_attr(target_env = "sgx", feature(rustc_private))]
+use itp_types::parentchain::{Balance, Hash};
+use log::warn;
+
+const PASEO_RELAY_GENESIS_HASH_HEX: &str =
+	"77afd6190f1554ad45fd0d31aee62aacc33c6db0ea801129acb813f913e0764f";
+const INTEGRITEE_PASEO_GENESIS_HASH_HEX: &str =
+	"1b69c462cd7dfea0e855c2008b66490cc8bbe90bc80b297ec0896a1c0941ce15";
+const INTEGRITEE_KUSAMA_GENESIS_HASH_HEX: &str =
+	"cdedc8eadbfa209d3f207bba541e57c3c58a667b05a2e1d1e86353c9000758da";
+
+/// modify this for testing if necessary
+const LOCAL_TEST_GENESIS_HASH_HEX: &str =
+	"6ca6d29ad6c4a200c4af356f74f03d6467dbc8a6e9ef225a2e672a990e1c7ead";
+pub struct MinimalChainSpec {}
+
+impl MinimalChainSpec {
+	pub fn decimals(genesis_hash: Hash) -> u8 {
+		let genesis_hash_hex = hex::encode(genesis_hash);
+		match genesis_hash_hex.as_ref() {
+			PASEO_RELAY_GENESIS_HASH_HEX => 10,
+			INTEGRITEE_PASEO_GENESIS_HASH_HEX | INTEGRITEE_KUSAMA_GENESIS_HASH_HEX => 12,
+			LOCAL_TEST_GENESIS_HASH_HEX => 10,
+			_ => {
+				warn!(
+					"parentchain spec for genesis {} unknown. defaulting to 12 decimals",
+					genesis_hash_hex
+				);
+				12
+			},
+		}
+	}
+	pub fn one_unit(genesis_hash: Hash) -> Balance {
+		10u128.pow(Self::decimals(genesis_hash) as u32)
+	}
+}