lint_crl_no_critical_reason_codes.go

Documentation: github.com/letsencrypt/boulder/linter/lints/cabf_br

     1  package cabfbr
     2  
     3  import (
     4  	"github.com/zmap/zcrypto/encoding/asn1"
     5  	"github.com/zmap/zcrypto/x509"
     6  	"github.com/zmap/zlint/v3/lint"
     7  	"github.com/zmap/zlint/v3/util"
     8  )
     9  
    10  type crlCriticalReasonCodes struct{}
    11  
    12  /************************************************
    13  Baseline Requirements: 7.2.2.1:
    14  If present, [the reasonCode] extension MUST NOT be marked critical.
    15  ************************************************/
    16  
    17  func init() {
    18  	lint.RegisterRevocationListLint(&lint.RevocationListLint{
    19  		LintMetadata: lint.LintMetadata{
    20  			Name:          "e_crl_no_critical_reason_codes",
    21  			Description:   "CRL entry reasonCode extension MUST NOT be marked critical",
    22  			Citation:      "BRs: 7.2.2.1",
    23  			Source:        lint.CABFBaselineRequirements,
    24  			EffectiveDate: util.CABFBRs_1_8_0_Date,
    25  		},
    26  		Lint: NewCrlCriticalReasonCodes,
    27  	})
    28  }
    29  
    30  func NewCrlCriticalReasonCodes() lint.RevocationListLintInterface {
    31  	return &crlCriticalReasonCodes{}
    32  }
    33  
    34  func (l *crlCriticalReasonCodes) CheckApplies(c *x509.RevocationList) bool {
    35  	return true
    36  }
    37  
    38  func (l *crlCriticalReasonCodes) Execute(c *x509.RevocationList) *lint.LintResult {
    39  	reasonCodeOID := asn1.ObjectIdentifier{2, 5, 29, 21} // id-ce-reasonCode
    40  	for _, rc := range c.RevokedCertificates {
    41  		for _, ext := range rc.Extensions {
    42  			if ext.Id.Equal(reasonCodeOID) && ext.Critical {
    43  				return &lint.LintResult{
    44  					Status:  lint.Error,
    45  					Details: "CRL entry reasonCode extension MUST NOT be marked critical",
    46  				}
    47  			}
    48  		}
    49  	}
    50  	return &lint.LintResult{Status: lint.Pass}
    51  }
    52
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