160 lines
3.6 KiB
Go
160 lines
3.6 KiB
Go
package consul
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import (
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"fmt"
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"github.com/hashicorp/consul/acl"
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"github.com/hashicorp/consul/agent/connect"
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"github.com/hashicorp/consul/agent/consul/state"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/go-memdb"
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)
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// ConnectCA manages the Connect CA.
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type ConnectCA struct {
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// srv is a pointer back to the server.
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srv *Server
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}
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// ConfigurationGet returns the configuration for the CA.
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func (s *ConnectCA) ConfigurationGet(
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args *structs.DCSpecificRequest,
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reply *structs.CAConfiguration) error {
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if done, err := s.srv.forward("ConnectCA.ConfigurationGet", args, args, reply); done {
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return err
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}
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// This action requires operator read access.
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rule, err := s.srv.resolveToken(args.Token)
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if err != nil {
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return err
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}
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if rule != nil && !rule.OperatorRead() {
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return acl.ErrPermissionDenied
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}
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state := s.srv.fsm.State()
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_, config, err := state.CAConfig()
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if err != nil {
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return err
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}
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*reply = *config
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return nil
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}
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// ConfigurationSet updates the configuration for the CA.
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func (s *ConnectCA) ConfigurationSet(
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args *structs.CARequest,
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reply *interface{}) error {
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if done, err := s.srv.forward("ConnectCA.ConfigurationSet", args, args, reply); done {
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return err
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}
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// This action requires operator read access.
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rule, err := s.srv.resolveToken(args.Token)
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if err != nil {
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return err
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}
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if rule != nil && !rule.OperatorWrite() {
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return acl.ErrPermissionDenied
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}
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// Commit
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// todo(kyhavlov): trigger a bootstrap here when the provider changes
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args.Op = structs.CAOpSetConfig
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resp, err := s.srv.raftApply(structs.ConnectCARequestType, args)
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if err != nil {
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return err
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}
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if respErr, ok := resp.(error); ok {
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return respErr
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}
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return nil
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}
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// Roots returns the currently trusted root certificates.
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func (s *ConnectCA) Roots(
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args *structs.DCSpecificRequest,
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reply *structs.IndexedCARoots) error {
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// Forward if necessary
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if done, err := s.srv.forward("ConnectCA.Roots", args, args, reply); done {
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return err
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}
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return s.srv.blockingQuery(
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&args.QueryOptions, &reply.QueryMeta,
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func(ws memdb.WatchSet, state *state.Store) error {
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index, roots, err := state.CARoots(ws)
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if err != nil {
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return err
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}
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reply.Index, reply.Roots = index, roots
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if reply.Roots == nil {
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reply.Roots = make(structs.CARoots, 0)
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}
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// The API response must NEVER contain the secret information
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// such as keys and so on. We use a whitelist below to copy the
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// specific fields we want to expose.
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for i, r := range reply.Roots {
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// IMPORTANT: r must NEVER be modified, since it is a pointer
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// directly to the structure in the memdb store.
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reply.Roots[i] = &structs.CARoot{
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ID: r.ID,
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Name: r.Name,
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RootCert: r.RootCert,
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RaftIndex: r.RaftIndex,
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Active: r.Active,
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}
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if r.Active {
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reply.ActiveRootID = r.ID
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}
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}
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return nil
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},
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)
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}
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// Sign signs a certificate for a service.
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func (s *ConnectCA) Sign(
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args *structs.CASignRequest,
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reply *structs.IssuedCert) error {
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if done, err := s.srv.forward("ConnectCA.Sign", args, args, reply); done {
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return err
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}
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// Parse the CSR
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csr, err := connect.ParseCSR(args.CSR)
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if err != nil {
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return err
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}
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// Parse the SPIFFE ID
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spiffeId, err := connect.ParseCertURI(csr.URIs[0])
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if err != nil {
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return err
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}
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serviceId, ok := spiffeId.(*connect.SpiffeIDService)
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if !ok {
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return fmt.Errorf("SPIFFE ID in CSR must be a service ID")
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}
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// todo(kyhavlov): more validation on the CSR before signing
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cert, err := s.srv.signConnectCert(serviceId, csr)
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if err != nil {
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return err
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}
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// Set the response
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*reply = *cert
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return nil
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}
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