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https://github.com/golang/go
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69275eef5e
This changes fixes two issues with regard to handling routing messages as follows: - Misparsing on platforms (such as FreeBSD) supporting multiple architectures in the same kernel (kern.supported_archs="amd64 i386") - Misparsing with unimplemented messages such as route, interface address state notifications To fix those issues, this change implements all the required socket address parsers, adds a processor architecture identifying function to FreeBSD and tests. Fixes #9707. Fixes #8203. Change-Id: I7ed7b4a0b6f10f54b29edc681a2f35603f2d8d45 Reviewed-on: https://go-review.googlesource.com/4330 Reviewed-by: Ian Lance Taylor <iant@golang.org>
75 lines
2.1 KiB
Go
75 lines
2.1 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build darwin dragonfly freebsd
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package syscall_test
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import (
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"fmt"
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"syscall"
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)
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func parseRoutingMessageHeader(m syscall.RoutingMessage) (addrFlags, error) {
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switch m := m.(type) {
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case *syscall.RouteMessage:
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errno := syscall.Errno(uintptr(m.Header.Errno))
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if errno != 0 {
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return 0, fmt.Errorf("%T: %v, %#v", m, errno, m.Header)
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}
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return addrFlags(m.Header.Addrs), nil
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case *syscall.InterfaceMessage:
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return addrFlags(m.Header.Addrs), nil
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case *syscall.InterfaceAddrMessage:
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return addrFlags(m.Header.Addrs), nil
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case *syscall.InterfaceMulticastAddrMessage:
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return addrFlags(m.Header.Addrs), nil
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default:
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panic(fmt.Sprintf("unknown routing message type: %T", m))
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}
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}
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func parseRoutingSockaddrs(m syscall.RoutingMessage) ([]syscall.Sockaddr, error) {
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switch m := m.(type) {
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case *syscall.RouteMessage:
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sas, err := syscall.ParseRoutingSockaddr(m)
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if err != nil {
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return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
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}
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if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
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return nil, err
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}
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return sas, nil
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case *syscall.InterfaceMessage:
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sas, err := syscall.ParseRoutingSockaddr(m)
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if err != nil {
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return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
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}
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if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
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return nil, err
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}
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return sas, nil
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case *syscall.InterfaceAddrMessage:
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sas, err := syscall.ParseRoutingSockaddr(m)
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if err != nil {
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return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
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}
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if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
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return nil, err
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}
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return sas, nil
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case *syscall.InterfaceMulticastAddrMessage:
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sas, err := syscall.ParseRoutingSockaddr(m)
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if err != nil {
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return nil, fmt.Errorf("%T: %v, %#v", m, err, m.Data)
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}
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if err = sockaddrs(sas).match(addrFlags(m.Header.Addrs)); err != nil {
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return nil, err
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}
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return sas, nil
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default:
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panic(fmt.Sprintf("unknown routing message type: %T", m))
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}
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}
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