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Append client version info to graffiti (#7558)

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* #7201


  


Co-Authored-By: Tan Chee Keong <tanck@sigmaprime.io>

Co-Authored-By: chonghe <44791194+chong-he@users.noreply.github.com>

Co-Authored-By: Jimmy Chen <jimmy@sigmaprime.io>

Co-Authored-By: Tan Chee Keong <tanck2005@gmail.com>
This commit is contained in:
chonghe
2025-12-16 11:19:28 +08:00
committed by GitHub
parent afa6457acf
commit 86c2b7cfbe
14 changed files with 392 additions and 47 deletions
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55
beacon_node/execution_layer/src/engine_api.rs
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@@ -763,8 +763,12 @@ pub struct ClientVersionV1 {
}
impl ClientVersionV1 {
pub fn calculate_graffiti(&self, lighthouse_commit_prefix: CommitPrefix) -> Graffiti {
let graffiti_string = format!(
pub fn calculate_graffiti(
&self,
lighthouse_commit_prefix: CommitPrefix,
validator_graffiti: Option<Graffiti>,
) -> Graffiti {
let append_graffiti_full = format!(
"{}{}LH{}",
self.code,
self.commit
@@ -778,6 +782,53 @@ impl ClientVersionV1 {
.unwrap_or("0000")
.to_lowercase(),
);
// Implement the special case here:
// https://hackmd.io/@wmoBhF17RAOH2NZ5bNXJVg/BJX2c9gja#SPECIAL-CASE-the-flexible-standard
let append_graffiti_one_byte = format!(
"{}{}LH{}",
self.code,
self.commit
.0
.get(..2)
.unwrap_or(self.commit.0.as_str())
.to_lowercase(),
lighthouse_commit_prefix
.0
.get(..2)
.unwrap_or("00")
.to_lowercase(),
);
let append_graffiti_no_commit = format!("{}LH", self.code);
let append_graffiti_only_el = format!("{}", self.code);
let graffiti_string = if let Some(graffiti) = validator_graffiti {
let graffiti_length = graffiti.as_utf8_lossy().len();
let graffiti_str = graffiti.as_utf8_lossy();
// 12 characters for append_graffiti_full, plus one character for spacing
// that leaves user specified graffiti to be 32-12-1 = 19 characters max, i.e., <20
if graffiti_length < 20 {
format!("{} {}", append_graffiti_full, graffiti_str)
// user-specified graffiti is between 20-23 characters
} else if (20..24).contains(&graffiti_length) {
format!("{} {}", append_graffiti_one_byte, graffiti_str)
// user-specified graffiti is between 24-27 characters
} else if (24..28).contains(&graffiti_length) {
format!("{} {}", append_graffiti_no_commit, graffiti_str)
// user-specified graffiti is between 28-29 characters
} else if (28..30).contains(&graffiti_length) {
format!("{} {}", append_graffiti_only_el, graffiti_str)
// if user-specified graffiti is between 30-32 characters, append nothing
} else {
return graffiti;
}
} else {
// if no validator_graffiti (user doesn't specify), use the full client version info graffiti
append_graffiti_full
};
let mut graffiti_bytes = [0u8; GRAFFITI_BYTES_LEN];
let bytes_to_copy = std::cmp::min(graffiti_string.len(), GRAFFITI_BYTES_LEN);
graffiti_bytes[..bytes_to_copy]