mirror of
https://github.com/safing/portmaster
synced 2025-09-02 02:29:12 +00:00
85 lines
2.4 KiB
Go
85 lines
2.4 KiB
Go
package docks
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import (
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"context"
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"errors"
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"fmt"
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"time"
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"github.com/safing/portbase/container"
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"github.com/safing/portbase/formats/varint"
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"github.com/safing/portmaster/spn/cabin"
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"github.com/safing/portmaster/spn/terminal"
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)
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const (
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hubVerificationPurpose = "hub identify verification"
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)
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// VerifyConnectedHub verifies the connected Hub.
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func (crane *Crane) VerifyConnectedHub(callerCtx context.Context) error {
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if !crane.ship.IsMine() || crane.nextTerminalID != 0 || crane.Public() {
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return errors.New("hub verification can only be executed in init phase by the client")
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}
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// Create verification request.
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v, request, err := cabin.CreateVerificationRequest(hubVerificationPurpose, "", "")
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if err != nil {
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return fmt.Errorf("failed to create verification request: %w", err)
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}
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// Send it.
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msg := container.New(
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varint.Pack8(CraneMsgTypeVerify),
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request,
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)
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msg.PrependLength()
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err = crane.ship.Load(msg.CompileData())
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if err != nil {
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return terminal.ErrShipSunk.With("failed to send verification request: %w", err)
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}
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// Wait for reply.
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var reply *container.Container
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select {
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case reply = <-crane.unloading:
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case <-time.After(2 * time.Minute):
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// Use a big timeout here, as this might keep servers from joining the
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// network at all, as every servers needs to verify every server, no
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// matter how far away.
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return terminal.ErrTimeout.With("waiting for verification reply")
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case <-crane.ctx.Done():
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return terminal.ErrShipSunk.With("waiting for verification reply")
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case <-callerCtx.Done():
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return terminal.ErrShipSunk.With("waiting for verification reply")
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}
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// Verify reply.
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return v.Verify(reply.CompileData(), crane.ConnectedHub)
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}
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func (crane *Crane) handleCraneVerification(request *container.Container) *terminal.Error {
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// Check if we have an identity.
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if crane.identity == nil {
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return terminal.ErrIncorrectUsage.With("cannot handle verification request without designated identity")
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}
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response, err := crane.identity.SignVerificationRequest(
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request.CompileData(),
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hubVerificationPurpose,
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"", "",
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)
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if err != nil {
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return terminal.ErrInternalError.With("failed to sign verification request: %w", err)
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}
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msg := container.New(response)
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// Manually send reply.
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msg.PrependLength()
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err = crane.ship.Load(msg.CompileData())
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if err != nil {
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return terminal.ErrShipSunk.With("failed to send verification reply: %w", err)
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}
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return nil
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}
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