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/*
* ZLint Copyright 2024 Regents of the University of Michigan
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package cabf_br
import (
"strings"
"github.com/zmap/zcrypto/x509"
"github.com/zmap/zlint/v3/lint"
"github.com/zmap/zlint/v3/util"
)
func init() {
lint.RegisterCertificateLint(&lint.CertificateLint{
LintMetadata: lint.LintMetadata{
Name: "e_dnsname_contains_prohibited_reserved_label",
Description: "FQDNs MUST consist solely of Domain Labels that are P‐Labels or Non‐Reserved LDH Labels",
Citation: "BRs: 7.1.4.2.1",
Source: lint.CABFBaselineRequirements,
EffectiveDate: util.NoReservedDomainLabelsDate,
},
Lint: NewDNSNameContainsProhibitedReservedLabel,
})
}
type DNSNameContainsProhibitedReservedLabel struct{}
func NewDNSNameContainsProhibitedReservedLabel() lint.LintInterface {
return &DNSNameContainsProhibitedReservedLabel{}
}
func (l *DNSNameContainsProhibitedReservedLabel) CheckApplies(c *x509.Certificate) bool {
return util.IsSubscriberCert(c) && util.DNSNamesExist(c)
}
func (l *DNSNameContainsProhibitedReservedLabel) Execute(c *x509.Certificate) *lint.LintResult {
for _, dns := range c.DNSNames {
labels := strings.Split(dns, ".")
for _, label := range labels {
if util.HasReservedLabelPrefix(label) && !util.HasXNLabelPrefix(label) {
return &lint.LintResult{Status: lint.Error}
}
}
}
return &lint.LintResult{Status: lint.Pass}
}
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