mirror of
https://github.com/danderson/netboot.git
synced 2025-10-16 01:51:19 +02:00
68 lines
1.9 KiB
Go
68 lines
1.9 KiB
Go
// Copyright 2016 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pixiecore
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import (
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"bytes"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net"
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"strconv"
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"go.universe.tf/netboot/tftp"
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)
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func (s *Server) serveTFTP(l net.PacketConn) {
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ts := tftp.Server{
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Handler: s.handleTFTP,
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InfoLog: func(msg string) { s.debug("TFTP", msg) },
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TransferLog: s.logTFTPTransfer,
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}
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err := ts.Serve(l)
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if err != nil {
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// TODO: fatal errors that return from one of the handler
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// goroutines should plumb the error back to the
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// coordinating goroutine, so that it can do an orderly
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// shutdown and return the error from Serve(). This "log +
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// randomly stop a piece of pixiecore" is a terrible
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// kludge.
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s.log("TFTP", "Server shut down unexpectedly: %s", err)
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}
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}
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func (s *Server) logTFTPTransfer(clientAddr net.Addr, path string, err error) {
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if err != nil {
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s.log("TFTP", "Send of %q to %s failed: %s", path, clientAddr, err)
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} else {
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s.log("TFTP", "Sent %q to %s", path, clientAddr)
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}
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}
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func (s *Server) handleTFTP(path string, clientAddr net.Addr) (io.ReadCloser, int64, error) {
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i, err := strconv.Atoi(path)
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if err != nil {
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return nil, 0, errors.New("not found")
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}
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bs, ok := s.Ipxe[Firmware(i)]
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if !ok {
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return nil, 0, fmt.Errorf("unknown firmware type %d", i)
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}
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return ioutil.NopCloser(bytes.NewBuffer(bs)), int64(len(bs)), nil
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}
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