283 lines
8.3 KiB
Go
283 lines
8.3 KiB
Go
package cert
|
|
|
|
import (
|
|
"context"
|
|
"crypto/x509"
|
|
"fmt"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/hashicorp/vault/helper/policyutil"
|
|
"github.com/hashicorp/vault/logical"
|
|
"github.com/hashicorp/vault/logical/framework"
|
|
)
|
|
|
|
func pathListCerts(b *backend) *framework.Path {
|
|
return &framework.Path{
|
|
Pattern: "certs/?",
|
|
|
|
Callbacks: map[logical.Operation]framework.OperationFunc{
|
|
logical.ListOperation: b.pathCertList,
|
|
},
|
|
|
|
HelpSynopsis: pathCertHelpSyn,
|
|
HelpDescription: pathCertHelpDesc,
|
|
}
|
|
}
|
|
|
|
func pathCerts(b *backend) *framework.Path {
|
|
return &framework.Path{
|
|
Pattern: "certs/" + framework.GenericNameRegex("name"),
|
|
Fields: map[string]*framework.FieldSchema{
|
|
"name": &framework.FieldSchema{
|
|
Type: framework.TypeString,
|
|
Description: "The name of the certificate",
|
|
},
|
|
|
|
"certificate": &framework.FieldSchema{
|
|
Type: framework.TypeString,
|
|
Description: `The public certificate that should be trusted.
|
|
Must be x509 PEM encoded.`,
|
|
},
|
|
|
|
"allowed_names": &framework.FieldSchema{
|
|
Type: framework.TypeCommaStringSlice,
|
|
Description: `A comma-separated list of names.
|
|
At least one must exist in either the Common Name or SANs. Supports globbing.`,
|
|
},
|
|
|
|
"required_extensions": &framework.FieldSchema{
|
|
Type: framework.TypeCommaStringSlice,
|
|
Description: `A comma-separated string or array of extensions
|
|
formatted as "oid:value". Expects the extension value to be some type of ASN1 encoded string.
|
|
All values much match. Supports globbing on "value".`,
|
|
},
|
|
|
|
"display_name": &framework.FieldSchema{
|
|
Type: framework.TypeString,
|
|
Description: `The display name to use for clients using this
|
|
certificate.`,
|
|
},
|
|
|
|
"policies": &framework.FieldSchema{
|
|
Type: framework.TypeCommaStringSlice,
|
|
Description: "Comma-seperated list of policies.",
|
|
},
|
|
|
|
"lease": &framework.FieldSchema{
|
|
Type: framework.TypeInt,
|
|
Description: `Deprecated: use "ttl" instead. TTL time in
|
|
seconds. Defaults to system/backend default TTL.`,
|
|
},
|
|
|
|
"ttl": &framework.FieldSchema{
|
|
Type: framework.TypeDurationSecond,
|
|
Description: `TTL for tokens issued by this backend.
|
|
Defaults to system/backend default TTL time.`,
|
|
},
|
|
"max_ttl": &framework.FieldSchema{
|
|
Type: framework.TypeDurationSecond,
|
|
Description: `Duration in either an integer number of seconds (3600) or
|
|
an integer time unit (60m) after which the
|
|
issued token can no longer be renewed.`,
|
|
},
|
|
"period": &framework.FieldSchema{
|
|
Type: framework.TypeDurationSecond,
|
|
Description: `If set, indicates that the token generated using this role
|
|
should never expire. The token should be renewed within the
|
|
duration specified by this value. At each renewal, the token's
|
|
TTL will be set to the value of this parameter.`,
|
|
},
|
|
},
|
|
|
|
Callbacks: map[logical.Operation]framework.OperationFunc{
|
|
logical.DeleteOperation: b.pathCertDelete,
|
|
logical.ReadOperation: b.pathCertRead,
|
|
logical.UpdateOperation: b.pathCertWrite,
|
|
},
|
|
|
|
HelpSynopsis: pathCertHelpSyn,
|
|
HelpDescription: pathCertHelpDesc,
|
|
}
|
|
}
|
|
|
|
func (b *backend) Cert(ctx context.Context, s logical.Storage, n string) (*CertEntry, error) {
|
|
entry, err := s.Get(ctx, "cert/"+strings.ToLower(n))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if entry == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
var result CertEntry
|
|
if err := entry.DecodeJSON(&result); err != nil {
|
|
return nil, err
|
|
}
|
|
return &result, nil
|
|
}
|
|
|
|
func (b *backend) pathCertDelete(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
|
|
err := req.Storage.Delete(ctx, "cert/"+strings.ToLower(d.Get("name").(string)))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
func (b *backend) pathCertList(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
|
|
certs, err := req.Storage.List(ctx, "cert/")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return logical.ListResponse(certs), nil
|
|
}
|
|
|
|
func (b *backend) pathCertRead(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
|
|
cert, err := b.Cert(ctx, req.Storage, strings.ToLower(d.Get("name").(string)))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if cert == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
return &logical.Response{
|
|
Data: map[string]interface{}{
|
|
"certificate": cert.Certificate,
|
|
"display_name": cert.DisplayName,
|
|
"policies": cert.Policies,
|
|
"ttl": cert.TTL / time.Second,
|
|
"max_ttl": cert.MaxTTL / time.Second,
|
|
"period": cert.Period / time.Second,
|
|
"allowed_names": cert.AllowedNames,
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
func (b *backend) pathCertWrite(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
|
|
name := strings.ToLower(d.Get("name").(string))
|
|
certificate := d.Get("certificate").(string)
|
|
displayName := d.Get("display_name").(string)
|
|
policies := policyutil.ParsePolicies(d.Get("policies"))
|
|
allowedNames := d.Get("allowed_names").([]string)
|
|
requiredExtensions := d.Get("required_extensions").([]string)
|
|
|
|
var resp logical.Response
|
|
|
|
// Parse the ttl (or lease duration)
|
|
systemDefaultTTL := b.System().DefaultLeaseTTL()
|
|
ttl := time.Duration(d.Get("ttl").(int)) * time.Second
|
|
if ttl == 0 {
|
|
ttl = time.Duration(d.Get("lease").(int)) * time.Second
|
|
}
|
|
if ttl > systemDefaultTTL {
|
|
resp.AddWarning(fmt.Sprintf("Given ttl of %d seconds is greater than current mount/system default of %d seconds", ttl/time.Second, systemDefaultTTL/time.Second))
|
|
}
|
|
|
|
if ttl < time.Duration(0) {
|
|
return logical.ErrorResponse("ttl cannot be negative"), nil
|
|
}
|
|
|
|
// Parse max_ttl
|
|
systemMaxTTL := b.System().MaxLeaseTTL()
|
|
maxTTL := time.Duration(d.Get("max_ttl").(int)) * time.Second
|
|
if maxTTL > systemMaxTTL {
|
|
resp.AddWarning(fmt.Sprintf("Given max_ttl of %d seconds is greater than current mount/system default of %d seconds", maxTTL/time.Second, systemMaxTTL/time.Second))
|
|
}
|
|
|
|
if maxTTL < time.Duration(0) {
|
|
return logical.ErrorResponse("max_ttl cannot be negative"), nil
|
|
}
|
|
|
|
if maxTTL != 0 && ttl > maxTTL {
|
|
return logical.ErrorResponse("ttl should be shorter than max_ttl"), nil
|
|
}
|
|
|
|
// Parse period
|
|
period := time.Duration(d.Get("period").(int)) * time.Second
|
|
if period > systemMaxTTL {
|
|
resp.AddWarning(fmt.Sprintf("Given period of %d seconds is greater than the backend's maximum TTL of %d seconds", period/time.Second, systemMaxTTL/time.Second))
|
|
}
|
|
|
|
if period < time.Duration(0) {
|
|
return logical.ErrorResponse("period cannot be negative"), nil
|
|
}
|
|
|
|
// Default the display name to the certificate name if not given
|
|
if displayName == "" {
|
|
displayName = name
|
|
}
|
|
|
|
parsed := parsePEM([]byte(certificate))
|
|
if len(parsed) == 0 {
|
|
return logical.ErrorResponse("failed to parse certificate"), nil
|
|
}
|
|
|
|
// If the certificate is not a CA cert, then ensure that x509.ExtKeyUsageClientAuth is set
|
|
if !parsed[0].IsCA && parsed[0].ExtKeyUsage != nil {
|
|
var clientAuth bool
|
|
for _, usage := range parsed[0].ExtKeyUsage {
|
|
if usage == x509.ExtKeyUsageClientAuth || usage == x509.ExtKeyUsageAny {
|
|
clientAuth = true
|
|
break
|
|
}
|
|
}
|
|
if !clientAuth {
|
|
return logical.ErrorResponse("non-CA certificates should have TLS client authentication set as an extended key usage"), nil
|
|
}
|
|
}
|
|
|
|
certEntry := &CertEntry{
|
|
Name: name,
|
|
Certificate: certificate,
|
|
DisplayName: displayName,
|
|
Policies: policies,
|
|
AllowedNames: allowedNames,
|
|
RequiredExtensions: requiredExtensions,
|
|
TTL: ttl,
|
|
MaxTTL: maxTTL,
|
|
Period: period,
|
|
}
|
|
|
|
// Store it
|
|
entry, err := logical.StorageEntryJSON("cert/"+name, certEntry)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if err := req.Storage.Put(ctx, entry); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(resp.Warnings) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
return &resp, nil
|
|
}
|
|
|
|
type CertEntry struct {
|
|
Name string
|
|
Certificate string
|
|
DisplayName string
|
|
Policies []string
|
|
TTL time.Duration
|
|
MaxTTL time.Duration
|
|
Period time.Duration
|
|
AllowedNames []string
|
|
RequiredExtensions []string
|
|
}
|
|
|
|
const pathCertHelpSyn = `
|
|
Manage trusted certificates used for authentication.
|
|
`
|
|
|
|
const pathCertHelpDesc = `
|
|
This endpoint allows you to create, read, update, and delete trusted certificates
|
|
that are allowed to authenticate.
|
|
|
|
Deleting a certificate will not revoke auth for prior authenticated connections.
|
|
To do this, do a revoke on "login". If you don't need to revoke login immediately,
|
|
then the next renew will cause the lease to expire.
|
|
`
|