Make rand a dev-dependency

.travis.yml

@@ -3,7 +3,7 @@ rust:
   - stable
   - beta
   - 1.22.0
-  - 1.29.2
+  - 1.34.2
 cache: cargo
 
 before_install:
@@ -13,5 +13,5 @@ before_install:
 script:
   - cargo build --verbose
   - cargo test --verbose
-  - if [ "$(rustup show | grep default | grep 1.29.2)" != "" ]; then cd fuzz && cargo test --verbose && ./travis-fuzz.sh; fi
+  - if [ "$(rustup show | grep default | grep 1.34.2)" != "" ]; then cd fuzz && cargo test --verbose && ./travis-fuzz.sh; fi
   - if [ "$(rustup show | grep default | grep stable)" != "" ]; then cd net-tokio && cargo build --verbose; fi

Cargo.toml

@@ -24,7 +24,6 @@ max_level_debug = []
 [dependencies]
 bitcoin = "0.18"
 bitcoin_hashes = "0.3"
-rand = "0.4"
 secp256k1 = "0.12"
 
 [dev-dependencies.bitcoin]
@@ -33,6 +32,7 @@ features = ["bitcoinconsensus"]
 
 [dev-dependencies]
 hex = "0.3"
+rand = "0.4"
 
 [profile.dev]
 opt-level = 1

fuzz/fuzz_targets/chanmon_deser_target.rs

@@ -8,7 +8,6 @@ extern crate lightning;
 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
 
 use lightning::ln::channelmonitor;
-use lightning::util::reset_rng_state;
 use lightning::util::ser::{ReadableArgs, Writer};
 
 mod utils;
@@ -30,7 +29,6 @@ impl Writer for VecWriter {
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	let logger = Arc::new(test_logger::TestLogger::new("".to_owned()));
 	if let Ok((latest_block_hash, monitor)) = <(Sha256dHash, channelmonitor::ChannelMonitor)>::read(&mut Cursor::new(data), logger.clone()) {
 		let mut w = VecWriter(Vec::new());

fuzz/fuzz_targets/chanmon_fail_consistency.rs

@@ -37,7 +37,7 @@ use lightning::ln::channelmonitor::{ChannelMonitorUpdateErr, HTLCUpdate};
 use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage};
 use lightning::ln::router::{Route, RouteHop};
 use lightning::ln::msgs::{CommitmentUpdate, ChannelMessageHandler, ErrorAction, HandleError, UpdateAddHTLC, LocalFeatures};
-use lightning::util::{reset_rng_state, fill_bytes, events};
+use lightning::util::events;
 use lightning::util::logger::Logger;
 use lightning::util::config::UserConfig;
 use lightning::util::events::{EventsProvider, MessageSendEventsProvider};
@@ -52,6 +52,7 @@ use secp256k1::Secp256k1;
 use std::cmp::Ordering;
 use std::collections::HashSet;
 use std::sync::{Arc,Mutex};
+use std::sync::atomic;
 use std::io::Cursor;
 
 struct FuzzEstimator {}
@@ -91,6 +92,8 @@ impl channelmonitor::ManyChannelMonitor for TestChannelMonitor {
 
 struct KeyProvider {
 	node_id: u8,
+	session_id: atomic::AtomicU8,
+	channel_id: atomic::AtomicU8,
 }
 impl KeysInterface for KeyProvider {
 	fn get_node_secret(&self) -> SecretKey {
@@ -121,22 +124,18 @@ impl KeysInterface for KeyProvider {
 	}
 
 	fn get_session_key(&self) -> SecretKey {
-		let mut session_key = [0; 32];
-		fill_bytes(&mut session_key);
-		SecretKey::from_slice(&session_key).unwrap()
+		let id = self.session_id.fetch_add(1, atomic::Ordering::Relaxed);
+		SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, id, 10, self.node_id]).unwrap()
 	}
 
 	fn get_channel_id(&self) -> [u8; 32] {
-		let mut channel_id = [0; 32];
-		fill_bytes(&mut channel_id);
-		channel_id
+		let id = self.channel_id.fetch_add(1, atomic::Ordering::Relaxed);
+		[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, id, 11, self.node_id]
 	}
 }
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
-
 	let fee_est = Arc::new(FuzzEstimator{});
 	let broadcast = Arc::new(TestBroadcaster{});
 
@@ -146,7 +145,7 @@ pub fn do_test(data: &[u8]) {
 			let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
 			let monitor = Arc::new(TestChannelMonitor::new(watch.clone(), broadcast.clone(), logger.clone(), fee_est.clone()));
 
-			let keys_manager = Arc::new(KeyProvider { node_id: $node_id });
+			let keys_manager = Arc::new(KeyProvider { node_id: $node_id, session_id: atomic::AtomicU8::new(0), channel_id: atomic::AtomicU8::new(0) });
 			let mut config = UserConfig::new();
 			config.channel_options.fee_proportional_millionths = 0;
 			config.channel_options.announced_channel = true;

fuzz/fuzz_targets/msg_targets/msg_accept_channel_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::AcceptChannel, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_announcement_signatures_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::AnnouncementSignatures, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_channel_announcement_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg_exact!(msgs::ChannelAnnouncement, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_channel_reestablish_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::ChannelReestablish, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_channel_update_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg_exact!(msgs::ChannelUpdate, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_closing_signed_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::ClosingSigned, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_commitment_signed_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::CommitmentSigned, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_decoded_onion_error_packet_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::DecodedOnionErrorPacket, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_error_message_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg_hole!(msgs::ErrorMessage, data, 32, 2);
 }
 

fuzz/fuzz_targets/msg_targets/msg_funding_created_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::FundingCreated, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_funding_locked_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::FundingLocked, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_funding_signed_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::FundingSigned, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_init_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::Init, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_node_announcement_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg_exact!(msgs::NodeAnnouncement, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_onion_hop_data_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg_hole!(msgs::OnionHopData, data, 1+8+8+4, 12);
 }
 

fuzz/fuzz_targets/msg_targets/msg_open_channel_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::OpenChannel, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_ping_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg_simple!(msgs::Ping, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_pong_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg_simple!(msgs::Pong, data);
 }
 

fuzz/fuzz_targets/msg_targets/msg_revoke_and_ack_target.rs

@@ -4,14 +4,12 @@
 extern crate lightning;
 
 use lightning::ln::msgs;
-use lightning::util::reset_rng_state;
 
 mod utils;
 use utils::VecWriter;
 
 #[inline]
 pub fn do_test(data: &[u8]) {
-	reset_rng_state();
 	test_msg!(msgs::RevokeAndACK, data);
 }