mirror of
https://github.com/shankar0123/certctl.git
synced 2026-06-07 17:51:29 +00:00
shankar0123
21aeed4f4e
Phase 0 closure (Path B2, post-rewrite):
addlicense sweep — adds the canonical certctl LLC copyright + BUSL-1.1
SPDX header to every production Go file. Template:
// Copyright 2026 certctl LLC. All rights reserved.
// SPDX-License-Identifier: BUSL-1.1
Coverage: 338 / 338 production Go files (cmd/ + internal/, excluding
*_test.go and **/testdata/**). Pre-sweep coverage was 22 / 338 (6.5%);
post-sweep is 338 / 338 (100%).
Normalized 22 pre-existing legacy headers (`// Copyright (c) certctl`
+ `// SPDX-License-Identifier: BSL-1.1`) and 1 file using a
`Certctl Contributors` attribution. The legacy SPDX ID `BSL-1.1`
is non-standard; the official SPDX identifier for Business Source
License 1.1 is `BUSL-1.1` (capital U). All 338 files now share the
canonical form.
Generated via:
addlicense -c "certctl LLC" -y 2026 \
-f cowork/legal/copyright-header.tpl \
-ignore '**/testdata/**' -ignore '**/*_test.go' \
cmd/ internal/
Verification:
find cmd internal -name '*.go' -not -name '*_test.go' \
-not -path '*/testdata/*' \
-exec grep -L '^// Copyright 2026 certctl LLC' {} \; | wc -l
Returns: 0
gofmt clean. Header additions are comments only, no compile impact.
Closes: cowork/certctl-architecture-diligence-audit.html#fix-RED-4
77 lines
2.6 KiB
Go
77 lines
2.6 KiB
Go
// Copyright 2026 certctl LLC. All rights reserved.
|
|
// SPDX-License-Identifier: BUSL-1.1
|
|
|
|
package main
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"crypto/x509"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
)
|
|
|
|
// Bundle-9 / Audit L-002 + L-003 (agent edition).
|
|
//
|
|
// The agent generates an ECDSA P-256 key locally and writes it to disk with
|
|
// mode 0600 in a directory it expects to be 0700. The duplication of the
|
|
// local-issuer helpers (instead of importing from internal/...) is deliberate:
|
|
//
|
|
// - cmd/agent is a separate binary with its own threat model (runs on every
|
|
// deployment target, not just the control plane). Coupling it to
|
|
// internal/connector/issuer/local would pull deployment-target footprint
|
|
// into a connector that's only relevant on the server.
|
|
// - The behavior is small and self-contained; copy-paste is cheaper than
|
|
// a refactor that introduces an internal/keystore package.
|
|
//
|
|
// If a third call site emerges, lift these into internal/keystore.
|
|
|
|
// marshalAgentKeyAndZeroize marshals an ECDSA private key to DER and invokes
|
|
// onDER with the bytes; the buffer is zeroized via builtin clear() after
|
|
// onDER returns. Caller must NOT retain the slice.
|
|
func marshalAgentKeyAndZeroize(priv *ecdsa.PrivateKey, onDER func([]byte) error) error {
|
|
if priv == nil {
|
|
return fmt.Errorf("marshalAgentKeyAndZeroize: nil private key")
|
|
}
|
|
der, err := x509.MarshalECPrivateKey(priv)
|
|
if err != nil {
|
|
return fmt.Errorf("marshal EC private key: %w", err)
|
|
}
|
|
defer clear(der)
|
|
return onDER(der)
|
|
}
|
|
|
|
// ensureAgentKeyDirSecure creates dir (and ancestors) with mode 0700 or
|
|
// asserts an existing dir is owner-only. If a pre-existing dir is more
|
|
// permissive than 0700 we tighten it to 0700 (logging-free; this is a
|
|
// startup-style invariant, not a per-request check).
|
|
func ensureAgentKeyDirSecure(dir string) error {
|
|
if dir == "" || dir == "." || dir == "/" {
|
|
return fmt.Errorf("ensureAgentKeyDirSecure: refuse empty/root dir %q", dir)
|
|
}
|
|
clean := filepath.Clean(dir)
|
|
info, err := os.Stat(clean)
|
|
switch {
|
|
case os.IsNotExist(err):
|
|
if mkErr := os.MkdirAll(clean, 0o700); mkErr != nil {
|
|
return fmt.Errorf("create agent key dir %q: %w", clean, mkErr)
|
|
}
|
|
info, err = os.Stat(clean)
|
|
if err != nil {
|
|
return fmt.Errorf("stat newly-created agent key dir %q: %w", clean, err)
|
|
}
|
|
fallthrough
|
|
case err == nil:
|
|
mode := info.Mode().Perm()
|
|
if mode == 0o700 || mode&0o077 == 0 {
|
|
return nil
|
|
}
|
|
if chmodErr := os.Chmod(clean, 0o700); chmodErr != nil {
|
|
return fmt.Errorf("tighten agent key dir %q from %#o to 0700: %w", clean, mode, chmodErr)
|
|
}
|
|
return nil
|
|
default:
|
|
return fmt.Errorf("stat agent key dir %q: %w", clean, err)
|
|
}
|
|
}
|