adds new contact-info with forward compatible sockets

The commit implement new ContactInfo where
* Ports and IP addresses are specified separately so that unique IP
  addresses can only be specified once.
* Different sockets (tvu, tpu, etc) are specified by opaque u8 tags so
  that adding and removing sockets is backward and forward compatible.
* solana_version::Version is also embedded in so that it won't need to
  be gossiped separately.
* NodeInstance is also rolled in by adding a field identifying when the
  instance was first created so that it won't need to be gossiped
  separately.

Update plan:
* Once the cluster is able to ingest the new type (i.e. this patch), a
  2nd patch will start gossiping the new ContactInfo along with the
  LegacyContactInfo.
* Once all nodes in the cluster gossip the new ContactInfo, a 3rd patch
  will start solely using the new ContactInfo while still gossiping the
  old LegacyContactInfo.
* Once all nodes in the cluster solely use the new ContactInfo, a 4th
  patch will stop gossiping the old LegacyContactInfo.

frozen-abi/src/abi_example.rs

@@ -464,6 +464,12 @@ impl AbiExample for SocketAddr {
     }
 }
 
+impl AbiExample for IpAddr {
+    fn example() -> Self {
+        IpAddr::V4(Ipv4Addr::UNSPECIFIED)
+    }
+}
+
 // This is a control flow indirection needed for digesting all variants of an enum
 pub trait AbiEnumVisitor: Serialize {
     fn visit_for_abi(&self, digester: &mut AbiDigester) -> DigestResult;

gossip/Cargo.toml

@@ -47,6 +47,7 @@ solana-thin-client = { path = "../thin-client", version = "=1.15.0" }
 solana-tpu-client = { path = "../tpu-client", version = "=1.15.0", default-features = false }
 solana-version = { path = "../version", version = "=1.15.0" }
 solana-vote-program = { path = "../programs/vote", version = "=1.15.0" }
+static_assertions = "1.1.0"
 thiserror = "1.0"
 
 [dev-dependencies]

gossip/src/cluster_info.rs

@@ -267,7 +267,7 @@ pub fn make_accounts_hashes_message(
 pub(crate) type Ping = ping_pong::Ping<[u8; GOSSIP_PING_TOKEN_SIZE]>;
 
 // TODO These messages should go through the gpu pipeline for spam filtering
-#[frozen_abi(digest = "Aui5aMV3SK41tRQN14sgCMK3qp6r9dboLXNAHEBKFzii")]
+#[frozen_abi(digest = "avtjwK4ZjdAVfR8ZqqJkxbbe7SXSvhX5Cv7hnNjbZ7g")]
 #[derive(Serialize, Deserialize, Debug, AbiEnumVisitor, AbiExample)]
 #[allow(clippy::large_enum_variant)]
 pub(crate) enum Protocol {
@@ -377,6 +377,7 @@ impl Sanitize for Protocol {
 fn retain_staked(values: &mut Vec<CrdsValue>, stakes: &HashMap<Pubkey, u64>) {
     values.retain(|value| {
         match value.data {
+            CrdsData::ContactInfo(_) => true,
             CrdsData::LegacyContactInfo(_) => true,
             // May Impact new validators starting up without any stake yet.
             CrdsData::Vote(_, _) => true,

gossip/src/cluster_info_metrics.rs

@@ -641,6 +641,8 @@ pub(crate) fn submit_gossip_stats(
             crds_stats.pull.counts[10],
             i64
         ),
+        ("ContactInfo-push", crds_stats.push.counts[11], i64),
+        ("ContactInfo-pull", crds_stats.pull.counts[11], i64),
         (
             "all-push",
             crds_stats.push.counts.iter().sum::<usize>(),
@@ -684,6 +686,8 @@ pub(crate) fn submit_gossip_stats(
             crds_stats.pull.fails[10],
             i64
         ),
+        ("ContactInfo-push", crds_stats.push.fails[11], i64),
+        ("ContactInfo-pull", crds_stats.pull.fails[11], i64),
         ("all-push", crds_stats.push.fails.iter().sum::<usize>(), i64),
         ("all-pull", crds_stats.pull.fails.iter().sum::<usize>(), i64),
     );