mirror of
https://github.com/edgelesssys/constellation.git
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114 lines
3.6 KiB
Go
114 lines
3.6 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package attestationconfigapi
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import (
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"encoding/json"
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"fmt"
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"path"
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"sort"
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"strings"
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"github.com/edgelesssys/constellation/v2/internal/attestation/variant"
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)
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// AttestationURLPath is the URL path to the attestation versions.
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const AttestationURLPath = "constellation/v1/attestation"
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// SEVSNPVersion tracks the latest version of each component of the Azure SEVSNP.
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type SEVSNPVersion struct {
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// Bootloader is the latest version of the Azure SEVSNP bootloader.
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Bootloader uint8 `json:"bootloader"`
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// TEE is the latest version of the Azure SEVSNP TEE.
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TEE uint8 `json:"tee"`
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// SNP is the latest version of the Azure SEVSNP SNP.
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SNP uint8 `json:"snp"`
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// Microcode is the latest version of the Azure SEVSNP microcode.
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Microcode uint8 `json:"microcode"`
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}
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// SEVSNPVersionAPI is the request to get the version information of the specific version in the config api.
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// Because variant is not part of the marshalled JSON, fetcher and client methods need to fill the variant property.
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// Once we switch to v2 of the API we should embed the variant in the object.
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// That would remove the possibility of some fetcher/client code forgetting to set the variant.
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type SEVSNPVersionAPI struct {
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Version string `json:"-"`
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Variant variant.Variant `json:"-"`
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SEVSNPVersion
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}
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// JSONPath returns the path to the JSON file for the request to the config api.
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func (i SEVSNPVersionAPI) JSONPath() string {
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return path.Join(AttestationURLPath, i.Variant.String(), i.Version)
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}
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// ValidateRequest validates the request.
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func (i SEVSNPVersionAPI) ValidateRequest() error {
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if !strings.HasSuffix(i.Version, ".json") {
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return fmt.Errorf("version has no .json suffix")
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}
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return nil
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}
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// Validate is a No-Op at the moment.
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func (i SEVSNPVersionAPI) Validate() error {
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return nil
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}
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// SEVSNPVersionList is the request to list all versions in the config api.
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// Because variant is not part of the marshalled JSON, fetcher and client methods need to fill the variant property.
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// Once we switch to v2 of the API we could embed the variant in the object and remove some code from fetcher & client.
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// That would remove the possibility of some fetcher/client code forgetting to set the variant.
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type SEVSNPVersionList struct {
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variant variant.Variant
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list []string
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}
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// MarshalJSON marshals the i's list property to JSON.
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func (i SEVSNPVersionList) MarshalJSON() ([]byte, error) {
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return json.Marshal(i.list)
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}
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// UnmarshalJSON unmarshals a list of strings into i's list property.
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func (i *SEVSNPVersionList) UnmarshalJSON(data []byte) error {
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return json.Unmarshal(data, &i.list)
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}
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// List returns i's list property.
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func (i SEVSNPVersionList) List() []string { return i.list }
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// JSONPath returns the path to the JSON file for the request to the config api.
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func (i SEVSNPVersionList) JSONPath() string {
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return path.Join(AttestationURLPath, i.variant.String(), "list")
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}
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// ValidateRequest is a NoOp as there is no input.
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func (i SEVSNPVersionList) ValidateRequest() error {
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return nil
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}
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// SortReverse sorts the list of versions in reverse order.
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func (i *SEVSNPVersionList) SortReverse() {
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sort.Sort(sort.Reverse(sort.StringSlice(i.list)))
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}
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// addVersion adds new to i's list and sorts the element in descending order.
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func (i *SEVSNPVersionList) addVersion(new string) {
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i.list = append(i.list, new)
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i.list = variant.RemoveDuplicate(i.list)
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i.SortReverse()
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}
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// Validate validates the response.
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func (i SEVSNPVersionList) Validate() error {
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if len(i.list) < 1 {
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return fmt.Errorf("no versions found in /list")
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}
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return nil
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}
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