Add pkg/metrics/text, a small Prometheus text-format writer, and use it
for frpc's /metrics. The endpoint lives only on metricsServer and is
covered by its Basic Auth, like the other endpoints there.
The package emits the Go runtime families and, on Linux, the process
families read from /proc. Their names, types and help strings match
client_golang's default collectors, so existing Go runtime dashboards
keep working. It deliberately emits no frp_ business metrics and none of
client_golang's promhttp_ handler metrics.
Writing the subset ourselves keeps client_golang and protobuf out of the
frpc binary; both are still used by frps and by the tests here.
x/crypto v0.56.0 fixes two denial-of-service bugs in golang.org/x/crypto/ssh
channel handling (GO-2026-6354 / CVE-2026-78662, GO-2026-6355 /
CVE-2026-56855), reachable through the frps SSH tunnel gateway in pkg/ssh.
v0.55.0 fixes GO-2026-6303 / CVE-2026-56854. v0.56.0 requires Go 1.26, so the
go directive, CI and Docker builders move from 1.25 to 1.26; Go 1.25 stopped
receiving security fixes when Go 1.27 was released.
Also bumps github.com/Azure/go-ntlmssp to v0.1.1 (GO-2026-5543 /
CVE-2026-32952).
Claude-Session: https://claude.ai/code/session_01FV4GkYDtbatepp2KH3s247
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Use net/http Server.Protocols and the merged golib listener path instead of the deprecated h2c handler. Keep HTTP/1.1 and cleartext HTTP/2 prior-knowledge support, while intentionally dropping HTTP/1.1 Upgrade: h2c.
- Update go.mod to use github.com/quic-go/quic-go v0.53.0
- Replace quic.Connection interface with *quic.Conn struct
- Replace quic.Stream interface with *quic.Stream struct
- Update all affected files to use new API:
- pkg/util/net/conn.go: Update QuicStreamToNetConn function and wrapQuicStream struct
- server/service.go: Update HandleQUICListener function parameter
- client/visitor/xtcp.go: Update QUICTunnelSession struct field
- client/connector.go: Update defaultConnectorImpl struct field
Fixes#4852
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
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