Skip to content

⚡ Bolt: Optimize regex compilation in TLS tracer #161

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mayankpande88 merged 1 commit into from
Jan 9, 2026
Merged

⚡ Bolt: Optimize regex compilation in TLS tracer #161

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 6 additions & 7 deletions ebpftracer/tls.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,12 @@ const (

var (
opensslVersionRe = regexp.MustCompile(`OpenSSL\s(\d\.\d+\.\d+)`)
// Regex to find libraries that look like libssl or libcrypto, even with version numbers.
// e.g., libssl.so.3, libcrypto-74fbf0e0.so.3
libSslRe = regexp.MustCompile(`libssl\.so(\.\d+)*`)
libCryptoRe = regexp.MustCompile(`libcrypto\.so(\.\d+)*`)
// A more specific regex for psycopg2's bundled libs
psycopg2LibRe = regexp.MustCompile(`lib(ssl|crypto)-[a-f0-9]+\.so\.\d+`)
)

func (t *Tracer) AttachOpenSslUprobes(pid uint32) []link.Link {
Expand Down Expand Up @@ -271,13 +277,6 @@ func getSslLibPathAndVersion(pid uint32) (string, string) {
}
defer f.Close()

// Regex to find libraries that look like libssl or libcrypto, even with version numbers.
// e.g., libssl.so.3, libcrypto-74fbf0e0.so.3
libSslRe := regexp.MustCompile(`libssl\.so(\.\d+)*`)
libCryptoRe := regexp.MustCompile(`libcrypto\.so(\.\d+)*`)
// A more specific regex for psycopg2's bundled libs
psycopg2LibRe := regexp.MustCompile(`lib(ssl|crypto)-[a-f0-9]+\.so\.\d+`)

scanner := bufio.NewScanner(f)
scanner.Split(bufio.ScanLines)
var libsslPath, libcryptoPath string
Expand Down