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db.go
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db.go
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// Copyright 2020 Anapaya Systems
//
// 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 trust
import (
"context"
"crypto/x509"
"encoding/json"
"fmt"
"github.com/scionproto/scion/pkg/addr"
"github.com/scionproto/scion/pkg/scrypto/cppki"
)
// ChainQuery identifies a set of chains that need to be looked up.
type ChainQuery struct {
// IA is the ISD-AS identifier that must be part of the AS certificate's
// subject.
IA addr.IA
// SubjectKeyID identifies the subject key that the AS certificate must
// authenticate.
SubjectKeyID []byte
// Validity is the validity period of the chain. A certificate c fulfills
// the validity requirement if c.not_before <= Validity.not_before and
// c.not_after >= Validity.not_after.
Validity cppki.Validity
}
// MarshalJSON marshals the chain query for well formated log output.
func (q ChainQuery) MarshalJSON() ([]byte, error) {
j := struct {
IA addr.IA `json:"isd_as"`
SubjectKeyID string `json:"subject_key_id"`
Validity cppki.Validity `json:"validity"`
}{
IA: q.IA,
SubjectKeyID: fmt.Sprintf("%x", q.SubjectKeyID),
Validity: q.Validity,
}
return json.Marshal(j)
}
// DB is the database interface for trust material.
type DB interface {
// Chains looks up all chains that match the query.
Chains(context.Context, ChainQuery) ([][]*x509.Certificate, error)
// InsertChain inserts the given chain.
InsertChain(context.Context, []*x509.Certificate) (bool, error)
// SignedTRC looks up the TRC identified by the id.
SignedTRC(ctx context.Context, id cppki.TRCID) (cppki.SignedTRC, error)
// InsertTRC inserts the given TRC. Returns true if the TRC was not yet in
// the DB.
InsertTRC(ctx context.Context, trc cppki.SignedTRC) (bool, error)
}