Method NewRoute

pkg/sentry/socket/netstack/stack.go:1075–1098

NewRoute implements inet.Stack.NewRoute.

(ctx context.Context, msg *nlmsg.Message)

// NewRoute implements inet.Stack.NewRoute.
func (s *Stack) NewRoute(ctx context.Context, msg *nlmsg.Message) *syserr.Error {
	localRoute, err := s.localRoute(msg)
	if err != nil {
		return err
	}
	found := false
	for _, rt := range s.Stack.GetRouteTable() {
		if localRoute.Equal(rt) {
			found = true
			break
		}
	}
	flags := msg.Header().Flags
	switch {
	case !found && flags&linux.NLM_F_CREATE == linux.NLM_F_CREATE:
		s.Stack.AddRoute(localRoute)
	case found && flags&linux.NLM_F_REPLACE != linux.NLM_F_REPLACE:
		return syserr.ErrExists
	}
	if flags&linux.NLM_F_REPLACE == linux.NLM_F_REPLACE {
		s.Stack.ReplaceRoute(localRoute)
	}
	return nil
}

// IPTables returns the stack's iptables.
func (s *Stack) IPTables() (*stack.IPTables, error) {