Let PKI tidy associate revoked certs with their issuers (#16871)
* Refactor tidy steps into two separate helpers This refactors the tidy go routine into two separate helpers, making it clear where the boundaries of each are: variables are passed into these method and concerns are separated. As more operations are rolled into tidy, we can continue adding more helpers as appropriate. Additionally, as we move to make auto-tidy occur, we can use these as points to hook into periodic tidying. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor revInfo checking to helper This allows us to validate whether or not a revInfo entry contains a presently valid issuer, from the existing mapping. Coupled with the changeset to identify the issuer on revocation, we can begin adding capabilities to tidy to update this association, decreasing CRL build time and increasing the performance of OCSP. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor issuer fetching for revocation purposes Revocation needs to gracefully handle using the old legacy cert bundle, so fetching issuers (and parsing them) needs to be done slightly differently than other places. Refactor this from revokeCert into a common helper that can be used by tidy. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Allow tidy to associate revoked certs, issuers When revoking a certificate, we need to associate the issuer that signed its certificate back to the revInfo entry. Historically this was performed during CRL building (and still remains so), but when running without CRL building and with only OCSP, performance will degrade as the issuer needs to be found each time. Instead, allow the tidy operation to take over this role, allowing us to increase the performance of OCSP and CRL in this scenario, by decoupling issuer identification from CRL building in the ideal case. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add tests for tidy updates Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add changelog entry Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Add documentation on new tidy parameter, metrics Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> * Refactor tidy config into shared struct Finish adding metrics, status messages about new tidy operation. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
This commit is contained in:
Alexander Scheel
GitHub
parent
5fefab81f5
commit
43e722c69a
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@ -220,9 +220,10 @@ const (
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type tidyStatus struct {
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// Parameters used to initiate the operation
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safetyBuffer int
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tidyCertStore bool
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tidyRevokedCerts bool
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safetyBuffer int
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tidyCertStore bool
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tidyRevokedCerts bool
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tidyRevokedAssocs bool
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// Status
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state tidyStatusState
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@ -232,6 +233,7 @@ type tidyStatus struct {
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message string
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certStoreDeletedCount uint
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revokedCertDeletedCount uint
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missingIssuerCertCount uint
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}
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const backendHelp = `
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@ -3873,16 +3873,18 @@ func TestBackend_RevokePlusTidy_Intermediate(t *testing.T) {
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t.Fatal(err)
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}
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expectedData := map[string]interface{}{
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"safety_buffer": json.Number("1"),
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"tidy_cert_store": true,
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"tidy_revoked_certs": true,
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"state": "Finished",
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"error": nil,
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"time_started": nil,
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"time_finished": nil,
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"message": nil,
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"cert_store_deleted_count": json.Number("1"),
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"revoked_cert_deleted_count": json.Number("1"),
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"safety_buffer": json.Number("1"),
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"tidy_cert_store": true,
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"tidy_revoked_certs": true,
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"tidy_revoked_cert_issuer_associations": false,
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"state": "Finished",
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"error": nil,
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"time_started": nil,
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"time_finished": nil,
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"message": nil,
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"cert_store_deleted_count": json.Number("1"),
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"revoked_cert_deleted_count": json.Number("1"),
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"missing_issuer_cert_count": json.Number("0"),
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}
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// Let's copy the times from the response so that we can use deep.Equal()
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timeStarted, ok := tidyStatus.Data["time_started"]
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@ -1052,6 +1052,145 @@ func TestAutoRebuild(t *testing.T) {
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}
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}
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func TestTidyIssuerAssociation(t *testing.T) {
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t.Parallel()
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b, s := createBackendWithStorage(t)
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// Create a root CA.
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resp, err := CBWrite(b, s, "root/generate/internal", map[string]interface{}{
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"common_name": "root example.com",
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"issuer_name": "root",
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"key_type": "ec",
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})
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require.NoError(t, err)
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require.NotNil(t, resp)
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require.NotEmpty(t, resp.Data["certificate"])
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require.NotEmpty(t, resp.Data["issuer_id"])
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rootCert := resp.Data["certificate"].(string)
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rootID := resp.Data["issuer_id"].(issuerID)
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// Create a role for issuance.
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_, err = CBWrite(b, s, "roles/local-testing", map[string]interface{}{
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"allow_any_name": true,
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"enforce_hostnames": false,
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"key_type": "ec",
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"ttl": "75m",
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})
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require.NoError(t, err)
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// Issue a leaf cert and ensure we can revoke it.
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resp, err = CBWrite(b, s, "issue/local-testing", map[string]interface{}{
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"common_name": "testing",
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})
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require.NoError(t, err)
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require.NotNil(t, resp)
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require.NotEmpty(t, resp.Data["serial_number"])
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leafSerial := resp.Data["serial_number"].(string)
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_, err = CBWrite(b, s, "revoke", map[string]interface{}{
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"serial_number": leafSerial,
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})
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require.NoError(t, err)
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// This leaf's revInfo entry should have an issuer associated
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// with it.
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entry, err := s.Get(ctx, revokedPath+normalizeSerial(leafSerial))
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require.NoError(t, err)
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require.NotNil(t, entry)
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require.NotNil(t, entry.Value)
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var leafInfo revocationInfo
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err = entry.DecodeJSON(&leafInfo)
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require.NoError(t, err)
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require.Equal(t, rootID, leafInfo.CertificateIssuer)
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// Now remove the root and run tidy.
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_, err = CBDelete(b, s, "issuer/default")
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require.NoError(t, err)
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_, err = CBWrite(b, s, "tidy", map[string]interface{}{
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"tidy_revoked_cert_issuer_associations": true,
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})
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require.NoError(t, err)
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// Wait for tidy to finish.
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for {
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time.Sleep(125 * time.Millisecond)
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resp, err = CBRead(b, s, "tidy-status")
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require.NoError(t, err)
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require.NotNil(t, resp)
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require.NotNil(t, resp.Data)
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require.NotEmpty(t, resp.Data["state"])
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state := resp.Data["state"].(string)
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if state == "Finished" {
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break
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}
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if state == "Error" {
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t.Fatalf("unexpected state for tidy operation: Error:\nStatus: %v", resp.Data)
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}
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}
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// Ensure we don't have an association on this leaf any more.
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entry, err = s.Get(ctx, revokedPath+normalizeSerial(leafSerial))
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require.NoError(t, err)
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require.NotNil(t, entry)
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require.NotNil(t, entry.Value)
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err = entry.DecodeJSON(&leafInfo)
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require.NoError(t, err)
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require.Empty(t, leafInfo.CertificateIssuer)
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// Now, re-import the root and try again.
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resp, err = CBWrite(b, s, "issuers/import/bundle", map[string]interface{}{
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"pem_bundle": rootCert,
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})
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require.NoError(t, err)
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require.NotNil(t, resp)
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require.NotNil(t, resp.Data)
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require.NotNil(t, resp.Data["imported_issuers"])
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importedIssuers := resp.Data["imported_issuers"].([]string)
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require.Equal(t, 1, len(importedIssuers))
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newRootID := importedIssuers[0]
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require.NotEmpty(t, newRootID)
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// Re-run tidy...
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_, err = CBWrite(b, s, "tidy", map[string]interface{}{
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"tidy_revoked_cert_issuer_associations": true,
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})
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require.NoError(t, err)
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// Wait for tidy to finish.
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for {
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time.Sleep(125 * time.Millisecond)
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resp, err = CBRead(b, s, "tidy-status")
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require.NoError(t, err)
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require.NotNil(t, resp)
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require.NotNil(t, resp.Data)
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require.NotEmpty(t, resp.Data["state"])
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state := resp.Data["state"].(string)
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if state == "Finished" {
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break
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}
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if state == "Error" {
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t.Fatalf("unexpected state for tidy operation: Error:\nStatus: %v", resp.Data)
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}
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}
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// Finally, double-check we associated things correctly.
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entry, err = s.Get(ctx, revokedPath+normalizeSerial(leafSerial))
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require.NoError(t, err)
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require.NotNil(t, entry)
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require.NotNil(t, entry.Value)
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err = entry.DecodeJSON(&leafInfo)
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require.NoError(t, err)
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require.Equal(t, newRootID, string(leafInfo.CertificateIssuer))
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}
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func requestCrlFromBackend(t *testing.T, s logical.Storage, b *backend) *logical.Response {
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crlReq := &logical.Request{
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Operation: logical.ReadOperation,
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@ -222,6 +222,50 @@ func (cb *crlBuilder) _doRebuild(ctx context.Context, b *backend, request *logic
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return nil
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}
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// Helper function to fetch a map of issuerID->parsed cert for revocation
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// usage. Unlike other paths, this needs to handle the legacy bundle
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// more gracefully than rejecting it outright.
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func fetchIssuerMapForRevocationChecking(sc *storageContext) (map[issuerID]*x509.Certificate, error) {
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var err error
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var issuers []issuerID
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if !sc.Backend.useLegacyBundleCaStorage() {
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issuers, err = sc.listIssuers()
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if err != nil {
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return nil, fmt.Errorf("could not fetch issuers list: %v", err)
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}
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} else {
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// Hack: this isn't a real issuerID, but it works for fetchCAInfo
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// since it resolves the reference.
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issuers = []issuerID{legacyBundleShimID}
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}
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issuerIDCertMap := make(map[issuerID]*x509.Certificate, len(issuers))
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for _, issuer := range issuers {
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_, bundle, caErr := sc.fetchCertBundleByIssuerId(issuer, false)
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if caErr != nil {
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return nil, fmt.Errorf("error fetching CA certificate for issuer id %v: %s", issuer, caErr)
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}
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if bundle == nil {
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return nil, fmt.Errorf("faulty reference: %v - CA info not found", issuer)
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}
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parsedBundle, err := parseCABundle(sc.Context, sc.Backend, bundle)
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if err != nil {
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return nil, errutil.InternalError{Err: err.Error()}
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}
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if parsedBundle.Certificate == nil {
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return nil, errutil.InternalError{Err: "stored CA information not able to be parsed"}
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}
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issuerIDCertMap[issuer] = parsedBundle.Certificate
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}
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return issuerIDCertMap, nil
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}
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// Revokes a cert, and tries to be smart about error recovery
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func revokeCert(ctx context.Context, b *backend, req *logical.Request, serial string, fromLease bool) (*logical.Response, error) {
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// As this backend is self-contained and this function does not hook into
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@ -237,53 +281,20 @@ func revokeCert(ctx context.Context, b *backend, req *logical.Request, serial st
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// to gracefully degrade to the legacy cert bundle when it is required, as
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// secondary PR clusters might not have been upgraded, but still need to
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// handle revoking certs.
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var err error
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var issuers []issuerID
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sc := b.makeStorageContext(ctx, req.Storage)
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if !b.useLegacyBundleCaStorage() {
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issuers, err = sc.listIssuers()
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if err != nil {
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return logical.ErrorResponse(fmt.Sprintf("could not fetch issuers list: %v", err)), nil
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}
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} else {
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// Hack: this isn't a real issuerID, but it works for fetchCAInfo
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// since it resolves the reference.
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issuers = []issuerID{legacyBundleShimID}
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issuerIDCertMap, err := fetchIssuerMapForRevocationChecking(sc)
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if err != nil {
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return nil, err
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}
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issuerIDCertMap := make(map[issuerID]*x509.Certificate, len(issuers))
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for _, issuer := range issuers {
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_, bundle, caErr := sc.fetchCertBundleByIssuerId(issuer, false)
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if caErr != nil {
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switch caErr.(type) {
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case errutil.UserError:
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return logical.ErrorResponse(fmt.Sprintf("could not fetch the CA certificate for issuer id %v: %s", issuer, caErr)), nil
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default:
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return nil, fmt.Errorf("error fetching CA certificate for issuer id %v: %s", issuer, caErr)
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}
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}
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if bundle == nil {
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return nil, fmt.Errorf("faulty reference: %v - CA info not found", issuer)
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}
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parsedBundle, err := parseCABundle(ctx, b, bundle)
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if err != nil {
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return nil, errutil.InternalError{Err: err.Error()}
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}
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if parsedBundle.Certificate == nil {
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return nil, errutil.InternalError{Err: "stored CA information not able to be parsed"}
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}
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// Ensure we don't revoke an issuer via this API; use /issuer/:issuer_ref/revoke
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// instead.
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for issuer, certificate := range issuerIDCertMap {
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colonSerial := strings.ReplaceAll(strings.ToLower(serial), "-", ":")
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if colonSerial == serialFromCert(parsedBundle.Certificate) {
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if colonSerial == serialFromCert(certificate) {
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return logical.ErrorResponse(fmt.Sprintf("adding issuer (id: %v) to its own CRL is not allowed", issuer)), nil
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}
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issuerIDCertMap[issuer] = parsedBundle.Certificate
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}
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alreadyRevoked := false
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@ -683,6 +694,17 @@ func buildCRLs(ctx context.Context, b *backend, req *logical.Request, forceNew b
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return nil
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}
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func isRevInfoIssuerValid(revInfo *revocationInfo, issuerIDCertMap map[issuerID]*x509.Certificate) bool {
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if len(revInfo.CertificateIssuer) > 0 {
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issuerId := revInfo.CertificateIssuer
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if _, issuerExists := issuerIDCertMap[issuerId]; issuerExists {
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return true
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}
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}
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return false
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}
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func associateRevokedCertWithIsssuer(revInfo *revocationInfo, revokedCert *x509.Certificate, issuerIDCertMap map[issuerID]*x509.Certificate) bool {
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for issuerId, issuerCert := range issuerIDCertMap {
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if bytes.Equal(revokedCert.RawIssuer, issuerCert.RawSubject) {
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@ -782,12 +804,9 @@ func getRevokedCertEntries(ctx context.Context, req *logical.Request, issuerIDCe
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// prefer it to manually checking each issuer signature, assuming it
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// appears valid. It's highly unlikely for two different issuers
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// to have the same id (after the first was deleted).
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if len(revInfo.CertificateIssuer) > 0 {
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issuerId := revInfo.CertificateIssuer
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if _, issuerExists := issuerIDCertMap[issuerId]; issuerExists {
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revokedCertsMap[issuerId] = append(revokedCertsMap[issuerId], newRevCert)
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continue
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}
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if isRevInfoIssuerValid(&revInfo, issuerIDCertMap) {
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revokedCertsMap[revInfo.CertificateIssuer] = append(revokedCertsMap[revInfo.CertificateIssuer], newRevCert)
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continue
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// Otherwise, fall through and update the entry.
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}
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@ -9,11 +9,20 @@ import (
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"time"
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"github.com/armon/go-metrics"
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"github.com/hashicorp/go-hclog"
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"github.com/hashicorp/vault/sdk/framework"
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"github.com/hashicorp/vault/sdk/helper/consts"
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"github.com/hashicorp/vault/sdk/logical"
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)
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type tidyConfig struct {
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CertStore bool `json:"tidy_cert_store"`
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RevokedCerts bool `json:"tidy_revoked_certs"`
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IssuerAssocs bool `json:"tidy_revoked_cert_issuer_associations"`
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SafetyBuffer time.Duration `json:"safety_buffer"`
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}
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func pathTidy(b *backend) *framework.Path {
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return &framework.Path{
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Pattern: "tidy$",
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@ -36,6 +45,13 @@ and expired certificates, removing them both from the CRL and from storage. The
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CRL will be rotated if this causes any values to be removed.`,
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},
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"tidy_revoked_cert_issuer_associations": {
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Type: framework.TypeBool,
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Description: `Set to true to validate issuer associations
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on revocation entries. This helps increase the performance of CRL building
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and OCSP responses.`,
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},
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"safety_buffer": {
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Type: framework.TypeDurationSecond,
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Description: `The amount of extra time that must have passed
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@ -75,8 +91,8 @@ func pathTidyStatus(b *backend) *framework.Path {
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func (b *backend) pathTidyWrite(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
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safetyBuffer := d.Get("safety_buffer").(int)
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tidyCertStore := d.Get("tidy_cert_store").(bool)
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tidyRevokedCerts := d.Get("tidy_revoked_certs").(bool)
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tidyRevocationList := d.Get("tidy_revocation_list").(bool)
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tidyRevokedCerts := d.Get("tidy_revoked_certs").(bool) || d.Get("tidy_revocation_list").(bool)
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tidyRevokedAssocs := d.Get("tidy_revoked_cert_issuer_associations").(bool)
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if safetyBuffer < 1 {
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return logical.ErrorResponse("safety_buffer must be greater than zero"), nil
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@ -84,6 +100,13 @@ func (b *backend) pathTidyWrite(ctx context.Context, req *logical.Request, d *fr
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bufferDuration := time.Duration(safetyBuffer) * time.Second
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config := &tidyConfig{
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CertStore: tidyCertStore,
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RevokedCerts: tidyRevokedCerts,
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IssuerAssocs: tidyRevokedAssocs,
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SafetyBuffer: bufferDuration,
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}
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if !atomic.CompareAndSwapUint32(b.tidyCASGuard, 0, 1) {
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||||
resp := &logical.Response{}
|
||||
resp.AddWarning("Tidy operation already in progress.")
|
||||
|
|
@ -96,151 +119,39 @@ func (b *backend) pathTidyWrite(ctx context.Context, req *logical.Request, d *fr
|
|||
Storage: req.Storage,
|
||||
}
|
||||
|
||||
b.startTidyOperation(req, config)
|
||||
|
||||
resp := &logical.Response{}
|
||||
if !tidyCertStore && !tidyRevokedCerts && !tidyRevokedAssocs {
|
||||
resp.AddWarning("No targets to tidy; specify tidy_cert_store=true or tidy_revoked_certs=true or tidy_revoked_cert_issuer_associations=true to start a tidy operation.")
|
||||
} else {
|
||||
resp.AddWarning("Tidy operation successfully started. Any information from the operation will be printed to Vault's server logs.")
|
||||
}
|
||||
|
||||
return logical.RespondWithStatusCode(resp, req, http.StatusAccepted)
|
||||
}
|
||||
|
||||
func (b *backend) startTidyOperation(req *logical.Request, config *tidyConfig) {
|
||||
go func() {
|
||||
defer atomic.StoreUint32(b.tidyCASGuard, 0)
|
||||
|
||||
b.tidyStatusStart(safetyBuffer, tidyCertStore, tidyRevokedCerts || tidyRevocationList)
|
||||
b.tidyStatusStart(config)
|
||||
|
||||
// Don't cancel when the original client request goes away
|
||||
ctx = context.Background()
|
||||
// Don't cancel when the original client request goes away.
|
||||
ctx := context.Background()
|
||||
|
||||
logger := b.Logger().Named("tidy")
|
||||
|
||||
doTidy := func() error {
|
||||
if tidyCertStore {
|
||||
serials, err := req.Storage.List(ctx, "certs/")
|
||||
if err != nil {
|
||||
return fmt.Errorf("error fetching list of certs: %w", err)
|
||||
if config.CertStore {
|
||||
if err := b.doTidyCertStore(ctx, req, logger, config); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
serialCount := len(serials)
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "cert_store_total_entries"}, float32(serialCount))
|
||||
for i, serial := range serials {
|
||||
b.tidyStatusMessage(fmt.Sprintf("Tidying certificate store: checking entry %d of %d", i, serialCount))
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "cert_store_current_entry"}, float32(i))
|
||||
|
||||
certEntry, err := req.Storage.Get(ctx, "certs/"+serial)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error fetching certificate %q: %w", serial, err)
|
||||
}
|
||||
|
||||
if certEntry == nil {
|
||||
logger.Warn("certificate entry is nil; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting nil entry with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncCertStoreCount()
|
||||
continue
|
||||
}
|
||||
|
||||
if certEntry.Value == nil || len(certEntry.Value) == 0 {
|
||||
logger.Warn("certificate entry has no value; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting entry with nil value with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncCertStoreCount()
|
||||
continue
|
||||
}
|
||||
|
||||
cert, err := x509.ParseCertificate(certEntry.Value)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to parse stored certificate with serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
if time.Now().After(cert.NotAfter.Add(bufferDuration)) {
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting serial %q from storage: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncCertStoreCount()
|
||||
}
|
||||
}
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "cert_store_total_entries_remaining"}, float32(uint(serialCount)-b.tidyStatus.certStoreDeletedCount))
|
||||
}
|
||||
|
||||
if tidyRevokedCerts || tidyRevocationList {
|
||||
b.revokeStorageLock.Lock()
|
||||
defer b.revokeStorageLock.Unlock()
|
||||
|
||||
rebuildCRL := false
|
||||
|
||||
revokedSerials, err := req.Storage.List(ctx, "revoked/")
|
||||
if err != nil {
|
||||
return fmt.Errorf("error fetching list of revoked certs: %w", err)
|
||||
}
|
||||
|
||||
revokedSerialsCount := len(revokedSerials)
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_total_entries"}, float32(revokedSerialsCount))
|
||||
|
||||
var revInfo revocationInfo
|
||||
for i, serial := range revokedSerials {
|
||||
b.tidyStatusMessage(fmt.Sprintf("Tidying revoked certificates: checking certificate %d of %d", i, len(revokedSerials)))
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_current_entry"}, float32(i))
|
||||
|
||||
revokedEntry, err := req.Storage.Get(ctx, "revoked/"+serial)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to fetch revoked cert with serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
if revokedEntry == nil {
|
||||
logger.Warn("revoked entry is nil; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "revoked/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting nil revoked entry with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncRevokedCertCount()
|
||||
continue
|
||||
}
|
||||
|
||||
if revokedEntry.Value == nil || len(revokedEntry.Value) == 0 {
|
||||
logger.Warn("revoked entry has nil value; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "revoked/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting revoked entry with nil value with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncRevokedCertCount()
|
||||
continue
|
||||
}
|
||||
|
||||
err = revokedEntry.DecodeJSON(&revInfo)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error decoding revocation entry for serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
revokedCert, err := x509.ParseCertificate(revInfo.CertificateBytes)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to parse stored revoked certificate with serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
// Only remove the entries from revoked/ and certs/ if we're
|
||||
// past its NotAfter value. This is because we use the
|
||||
// information on revoked/ to build the CRL and the
|
||||
// information on certs/ for lookup.
|
||||
if time.Now().After(revokedCert.NotAfter.Add(bufferDuration)) {
|
||||
if err := req.Storage.Delete(ctx, "revoked/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting serial %q from revoked list: %w", serial, err)
|
||||
}
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting serial %q from store when tidying revoked: %w", serial, err)
|
||||
}
|
||||
rebuildCRL = true
|
||||
b.tidyStatusIncRevokedCertCount()
|
||||
}
|
||||
}
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_total_entries_remaining"}, float32(uint(revokedSerialsCount)-b.tidyStatus.revokedCertDeletedCount))
|
||||
if rebuildCRL {
|
||||
// Expired certificates isn't generally an important
|
||||
// reason to trigger a CRL rebuild for. Check if
|
||||
// automatic CRL rebuilds have been enabled and defer
|
||||
// the rebuild if so.
|
||||
sc := b.makeStorageContext(ctx, req.Storage)
|
||||
config, err := sc.getRevocationConfig()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if !config.AutoRebuild {
|
||||
if err := b.crlBuilder.rebuild(ctx, b, req, false); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
if config.RevokedCerts || config.IssuerAssocs {
|
||||
if err := b.doTidyRevocationStore(ctx, req, logger, config); err != nil {
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -254,15 +165,192 @@ func (b *backend) pathTidyWrite(ctx context.Context, req *logical.Request, d *fr
|
|||
b.tidyStatusStop(nil)
|
||||
}
|
||||
}()
|
||||
}
|
||||
|
||||
resp := &logical.Response{}
|
||||
if !tidyCertStore && !tidyRevokedCerts && !tidyRevocationList {
|
||||
resp.AddWarning("No targets to tidy; specify tidy_cert_store=true or tidy_revoked_certs=true to start a tidy operation.")
|
||||
} else {
|
||||
resp.AddWarning("Tidy operation successfully started. Any information from the operation will be printed to Vault's server logs.")
|
||||
func (b *backend) doTidyCertStore(ctx context.Context, req *logical.Request, logger hclog.Logger, config *tidyConfig) error {
|
||||
serials, err := req.Storage.List(ctx, "certs/")
|
||||
if err != nil {
|
||||
return fmt.Errorf("error fetching list of certs: %w", err)
|
||||
}
|
||||
|
||||
return logical.RespondWithStatusCode(resp, req, http.StatusAccepted)
|
||||
serialCount := len(serials)
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "cert_store_total_entries"}, float32(serialCount))
|
||||
for i, serial := range serials {
|
||||
b.tidyStatusMessage(fmt.Sprintf("Tidying certificate store: checking entry %d of %d", i, serialCount))
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "cert_store_current_entry"}, float32(i))
|
||||
|
||||
certEntry, err := req.Storage.Get(ctx, "certs/"+serial)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error fetching certificate %q: %w", serial, err)
|
||||
}
|
||||
|
||||
if certEntry == nil {
|
||||
logger.Warn("certificate entry is nil; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting nil entry with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncCertStoreCount()
|
||||
continue
|
||||
}
|
||||
|
||||
if certEntry.Value == nil || len(certEntry.Value) == 0 {
|
||||
logger.Warn("certificate entry has no value; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting entry with nil value with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncCertStoreCount()
|
||||
continue
|
||||
}
|
||||
|
||||
cert, err := x509.ParseCertificate(certEntry.Value)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to parse stored certificate with serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
if time.Now().After(cert.NotAfter.Add(config.SafetyBuffer)) {
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting serial %q from storage: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncCertStoreCount()
|
||||
}
|
||||
}
|
||||
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "cert_store_total_entries_remaining"}, float32(uint(serialCount)-b.tidyStatus.certStoreDeletedCount))
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (b *backend) doTidyRevocationStore(ctx context.Context, req *logical.Request, logger hclog.Logger, config *tidyConfig) error {
|
||||
b.revokeStorageLock.Lock()
|
||||
defer b.revokeStorageLock.Unlock()
|
||||
|
||||
// Fetch and parse our issuers so we can associate them if necessary.
|
||||
sc := b.makeStorageContext(ctx, req.Storage)
|
||||
issuerIDCertMap, err := fetchIssuerMapForRevocationChecking(sc)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
rebuildCRL := false
|
||||
|
||||
revokedSerials, err := req.Storage.List(ctx, "revoked/")
|
||||
if err != nil {
|
||||
return fmt.Errorf("error fetching list of revoked certs: %w", err)
|
||||
}
|
||||
|
||||
revokedSerialsCount := len(revokedSerials)
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_total_entries"}, float32(revokedSerialsCount))
|
||||
|
||||
fixedIssuers := 0
|
||||
|
||||
var revInfo revocationInfo
|
||||
for i, serial := range revokedSerials {
|
||||
b.tidyStatusMessage(fmt.Sprintf("Tidying revoked certificates: checking certificate %d of %d", i, len(revokedSerials)))
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_current_entry"}, float32(i))
|
||||
|
||||
revokedEntry, err := req.Storage.Get(ctx, "revoked/"+serial)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to fetch revoked cert with serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
if revokedEntry == nil {
|
||||
logger.Warn("revoked entry is nil; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "revoked/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting nil revoked entry with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncRevokedCertCount()
|
||||
continue
|
||||
}
|
||||
|
||||
if revokedEntry.Value == nil || len(revokedEntry.Value) == 0 {
|
||||
logger.Warn("revoked entry has nil value; tidying up since it is no longer useful for any server operations", "serial", serial)
|
||||
if err := req.Storage.Delete(ctx, "revoked/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting revoked entry with nil value with serial %s: %w", serial, err)
|
||||
}
|
||||
b.tidyStatusIncRevokedCertCount()
|
||||
continue
|
||||
}
|
||||
|
||||
err = revokedEntry.DecodeJSON(&revInfo)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error decoding revocation entry for serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
revokedCert, err := x509.ParseCertificate(revInfo.CertificateBytes)
|
||||
if err != nil {
|
||||
return fmt.Errorf("unable to parse stored revoked certificate with serial %q: %w", serial, err)
|
||||
}
|
||||
|
||||
// Tidy operations over revoked certs should execute prior to
|
||||
// tidyRevokedCerts as that may remove the entry. If that happens,
|
||||
// we won't persist the revInfo changes (as it was deleted instead).
|
||||
var storeCert bool
|
||||
if config.IssuerAssocs {
|
||||
if !isRevInfoIssuerValid(&revInfo, issuerIDCertMap) {
|
||||
b.tidyStatusIncMissingIssuerCertCount()
|
||||
revInfo.CertificateIssuer = issuerID("")
|
||||
storeCert = true
|
||||
if associateRevokedCertWithIsssuer(&revInfo, revokedCert, issuerIDCertMap) {
|
||||
fixedIssuers += 1
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if config.RevokedCerts {
|
||||
// Only remove the entries from revoked/ and certs/ if we're
|
||||
// past its NotAfter value. This is because we use the
|
||||
// information on revoked/ to build the CRL and the
|
||||
// information on certs/ for lookup.
|
||||
if time.Now().After(revokedCert.NotAfter.Add(config.SafetyBuffer)) {
|
||||
if err := req.Storage.Delete(ctx, "revoked/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting serial %q from revoked list: %w", serial, err)
|
||||
}
|
||||
if err := req.Storage.Delete(ctx, "certs/"+serial); err != nil {
|
||||
return fmt.Errorf("error deleting serial %q from store when tidying revoked: %w", serial, err)
|
||||
}
|
||||
rebuildCRL = true
|
||||
storeCert = false
|
||||
b.tidyStatusIncRevokedCertCount()
|
||||
}
|
||||
}
|
||||
|
||||
// If the entry wasn't removed but was otherwise modified,
|
||||
// go ahead and write it back out.
|
||||
if storeCert {
|
||||
revokedEntry, err = logical.StorageEntryJSON("revoked/"+serial, revInfo)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error building entry to persist changes to serial %v from revoked list: %v", serial, err)
|
||||
}
|
||||
|
||||
err = req.Storage.Put(ctx, revokedEntry)
|
||||
if err != nil {
|
||||
return fmt.Errorf("error persisting changes to serial %v from revoked list: %v", serial, err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_total_entries_remaining"}, float32(uint(revokedSerialsCount)-b.tidyStatus.revokedCertDeletedCount))
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_entries_incorrect_issuers"}, float32(b.tidyStatus.missingIssuerCertCount))
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "revoked_cert_entries_fixed_issuers"}, float32(fixedIssuers))
|
||||
|
||||
if rebuildCRL {
|
||||
// Expired certificates isn't generally an important
|
||||
// reason to trigger a CRL rebuild for. Check if
|
||||
// automatic CRL rebuilds have been enabled and defer
|
||||
// the rebuild if so.
|
||||
config, err := sc.getRevocationConfig()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if !config.AutoRebuild {
|
||||
if err := b.crlBuilder.rebuild(ctx, b, req, false); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (b *backend) pathTidyStatusRead(_ context.Context, _ *logical.Request, _ *framework.FieldData) (*logical.Response, error) {
|
||||
|
|
@ -287,6 +375,7 @@ func (b *backend) pathTidyStatusRead(_ context.Context, _ *logical.Request, _ *f
|
|||
"message": nil,
|
||||
"cert_store_deleted_count": nil,
|
||||
"revoked_cert_deleted_count": nil,
|
||||
"missing_issuer_cert_count": nil,
|
||||
},
|
||||
}
|
||||
|
||||
|
|
@ -297,10 +386,12 @@ func (b *backend) pathTidyStatusRead(_ context.Context, _ *logical.Request, _ *f
|
|||
resp.Data["safety_buffer"] = b.tidyStatus.safetyBuffer
|
||||
resp.Data["tidy_cert_store"] = b.tidyStatus.tidyCertStore
|
||||
resp.Data["tidy_revoked_certs"] = b.tidyStatus.tidyRevokedCerts
|
||||
resp.Data["tidy_revoked_cert_issuer_associations"] = b.tidyStatus.tidyRevokedAssocs
|
||||
resp.Data["time_started"] = b.tidyStatus.timeStarted
|
||||
resp.Data["message"] = b.tidyStatus.message
|
||||
resp.Data["cert_store_deleted_count"] = b.tidyStatus.certStoreDeletedCount
|
||||
resp.Data["revoked_cert_deleted_count"] = b.tidyStatus.revokedCertDeletedCount
|
||||
resp.Data["missing_issuer_cert_count"] = b.tidyStatus.missingIssuerCertCount
|
||||
|
||||
switch b.tidyStatus.state {
|
||||
case tidyStatusStarted:
|
||||
|
|
@ -320,16 +411,17 @@ func (b *backend) pathTidyStatusRead(_ context.Context, _ *logical.Request, _ *f
|
|||
return resp, nil
|
||||
}
|
||||
|
||||
func (b *backend) tidyStatusStart(safetyBuffer int, tidyCertStore, tidyRevokedCerts bool) {
|
||||
func (b *backend) tidyStatusStart(config *tidyConfig) {
|
||||
b.tidyStatusLock.Lock()
|
||||
defer b.tidyStatusLock.Unlock()
|
||||
|
||||
b.tidyStatus = &tidyStatus{
|
||||
safetyBuffer: safetyBuffer,
|
||||
tidyCertStore: tidyCertStore,
|
||||
tidyRevokedCerts: tidyRevokedCerts,
|
||||
state: tidyStatusStarted,
|
||||
timeStarted: time.Now(),
|
||||
safetyBuffer: int(config.SafetyBuffer / time.Second),
|
||||
tidyCertStore: config.CertStore,
|
||||
tidyRevokedCerts: config.RevokedCerts,
|
||||
tidyRevokedAssocs: config.IssuerAssocs,
|
||||
state: tidyStatusStarted,
|
||||
timeStarted: time.Now(),
|
||||
}
|
||||
|
||||
metrics.SetGauge([]string{"secrets", "pki", "tidy", "start_time_epoch"}, float32(b.tidyStatus.timeStarted.Unix()))
|
||||
|
|
@ -380,6 +472,13 @@ func (b *backend) tidyStatusIncRevokedCertCount() {
|
|||
b.tidyStatus.revokedCertDeletedCount++
|
||||
}
|
||||
|
||||
func (b *backend) tidyStatusIncMissingIssuerCertCount() {
|
||||
b.tidyStatusLock.Lock()
|
||||
defer b.tidyStatusLock.Unlock()
|
||||
|
||||
b.tidyStatus.missingIssuerCertCount++
|
||||
}
|
||||
|
||||
const pathTidyHelpSyn = `
|
||||
Tidy up the backend by removing expired certificates, revocation information,
|
||||
or both.
|
||||
|
|
@ -419,6 +518,7 @@ The result includes the following fields:
|
|||
* 'safety_buffer': the value of this parameter when initiating the tidy operation
|
||||
* 'tidy_cert_store': the value of this parameter when initiating the tidy operation
|
||||
* 'tidy_revoked_certs': the value of this parameter when initiating the tidy operation
|
||||
* 'tidy_revoked_cert_issuer_associations': the value of this parameter when initiating the tidy operation
|
||||
* 'state': one of "Inactive", "Running", "Finished", "Error"
|
||||
* 'error': the error message, if the operation ran into an error
|
||||
* 'time_started': the time the operation started
|
||||
|
|
@ -427,4 +527,5 @@ The result includes the following fields:
|
|||
"Tidying revoked certificates: checking certificate N of TOTAL"
|
||||
* 'cert_store_deleted_count': The number of certificate storage entries deleted
|
||||
* 'revoked_cert_deleted_count': The number of revoked certificate entries deleted
|
||||
* 'missing_issuer_cert_count': The number of revoked certificates which were missing a valid issuer reference
|
||||
`
|
||||
|
|
|
|||
|
|
@ -0,0 +1,3 @@
|
|||
```release-note:improvement
|
||||
secrets/pki: Allow tidy to associate revoked certs with their issuers for OCSP performance
|
||||
```
|
||||
|
|
@ -3123,16 +3123,21 @@ expiration time.
|
|||
|
||||
#### Parameters
|
||||
|
||||
- `tidy_cert_store` `(bool: false)` Specifies whether to tidy up the certificate
|
||||
- `tidy_cert_store` `(bool: false)` - Specifies whether to tidy up the certificate
|
||||
store.
|
||||
|
||||
- `tidy_revoked_certs` `(bool: false)` Set to true to remove all invalid and
|
||||
- `tidy_revoked_certs` `(bool: false)` - Set to true to remove all invalid and
|
||||
expired certificates from storage. A revoked storage entry is considered
|
||||
invalid if the entry is empty, or the value within the entry is empty. If a
|
||||
certificate is removed due to expiry, the entry will also be removed from the
|
||||
CRL, and the CRL will be rotated.
|
||||
|
||||
- `safety_buffer` `(string: "")` Specifies a duration using [duration format strings](/docs/concepts/duration-format)
|
||||
- `tidy_revoked_cert_issuer_associations` `(bool: false)` - Set to true to associate
|
||||
revoked certificates with their corresponding issuers; this improves the
|
||||
performance of OCSP and CRL building, by shifting work to a tidy operation
|
||||
instead.
|
||||
|
||||
- `safety_buffer` `(string: "")` - Specifies a duration using [duration format strings](/docs/concepts/duration-format)
|
||||
used as a safety buffer to ensure certificates are not expunged prematurely; as an example, this can keep
|
||||
certificates from being removed from the CRL that, due to clock skew, might
|
||||
still be considered valid on other hosts. For a certificate to be expunged,
|
||||
|
|
|
|||
|
|
@ -321,8 +321,10 @@ These metrics relate to the supported [secrets engines][secrets-engines].
|
|||
| `secrets.pki.tidy.revoked_cert_deleted_count` | Number of entries deleted from the certificate store for revoked certificates | entry | counter |
|
||||
| `secrets.pki.tidy.revoked_cert_total_entries` | Number of entries in the certificate store for revoked certificates to verify during the tidy operation | entry | gauge |
|
||||
| `secrets.pki.tidy.revoked_cert_total_entries_remaining` | Number of entries in the certificate store for revoked certificates that are left after the tidy operation (checked but not removed). | entry | gauge |
|
||||
| `secrets.pki.tidy.revoked_cert_total_entries_incorrect_issuers` | Number of entries in the certificate store which had incorrect issuer information (total). | entry | gauge |
|
||||
| `secrets.pki.tidy.revoked_cert_total_entries_fixed_issuers` | Number of entries in the certificate store which had incorrect issuer information that was fixed during this tidy operation. | entry | gauge |
|
||||
| `secrets.pki.tidy.start_time_epoch` | Start time (as seconds since Jan 1 1970) when the PKI tidy operation is active, 0 otherwise | seconds | gauge |
|
||||
| `secrets.pki.tidy.success` | Number of times the PKI tidy operation has completed succcessfully | operations | counter |
|
||||
| `secrets.pki.tidy.success` | Number of times the PKI tidy operation has completed successfully. | operations | counter |
|
||||
| `vault.secret.kv.count` (cluster, namespace, mount_point) | Number of entries in each key-value secret engine. | paths | gauge |
|
||||
| `vault.secret.lease.creation` (cluster, namespace, secret_engine, mount_point, creation_ttl) | Counts the number of leases created by secret engines. | leases | counter |
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue