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Diffstat (limited to 'gcc-4.8.1/libgo/go/syscall/route_bsd.go')
-rw-r--r--gcc-4.8.1/libgo/go/syscall/route_bsd.go201
1 files changed, 0 insertions, 201 deletions
diff --git a/gcc-4.8.1/libgo/go/syscall/route_bsd.go b/gcc-4.8.1/libgo/go/syscall/route_bsd.go
deleted file mode 100644
index e17d976b1..000000000
--- a/gcc-4.8.1/libgo/go/syscall/route_bsd.go
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin freebsd netbsd openbsd
-
-// Routing sockets and messages
-
-package syscall
-
-import (
- "unsafe"
-)
-
-// Round the length of a raw sockaddr up to align it properly.
-func rsaAlignOf(salen int) int {
- salign := sizeofPtr
- // NOTE: It seems like 64-bit Darwin kernel still requires 32-bit
- // aligned access to BSD subsystem.
- if darwinAMD64 {
- salign = 4
- }
- if salen == 0 {
- return salign
- }
- return (salen + salign - 1) & ^(salign - 1)
-}
-
-// RouteRIB returns routing information base, as known as RIB,
-// which consists of network facility information, states and
-// parameters.
-func RouteRIB(facility, param int) ([]byte, error) {
- mib := []_C_int{CTL_NET, AF_ROUTE, 0, 0, _C_int(facility), _C_int(param)}
-
- // Find size.
- n := uintptr(0)
- if err := sysctl(mib, nil, &n, nil, 0); err != nil {
- return nil, err
- }
- if n == 0 {
- return nil, nil
- }
-
- tab := make([]byte, n)
- if err := sysctl(mib, &tab[0], &n, nil, 0); err != nil {
- return nil, err
- }
-
- return tab[:n], nil
-}
-
-// RoutingMessage represents a routing message.
-type RoutingMessage interface {
- sockaddr() []Sockaddr
-}
-
-const anyMessageLen = int(unsafe.Sizeof(anyMessage{}))
-
-type anyMessage struct {
- Msglen uint16
- Version uint8
- Type uint8
-}
-
-// RouteMessage represents a routing message containing routing
-// entries.
-type RouteMessage struct {
- Header RtMsghdr
- Data []byte
-}
-
-const rtaRtMask = RTA_DST | RTA_GATEWAY | RTA_NETMASK | RTA_GENMASK
-
-func (m *RouteMessage) sockaddr() []Sockaddr {
- var (
- af int
- sas [4]Sockaddr
- )
-
- buf := m.Data[:]
- for i := uint(0); i < RTAX_MAX; i++ {
- if m.Header.Addrs&rtaRtMask&(1<<i) == 0 {
- continue
- }
- rsa := (*RawSockaddr)(unsafe.Pointer(&buf[0]))
- switch i {
- case RTAX_DST, RTAX_GATEWAY:
- sa, err := anyToSockaddr((*RawSockaddrAny)(unsafe.Pointer(rsa)))
- if err != nil {
- return nil
- }
- if i == RTAX_DST {
- af = int(rsa.Family)
- }
- sas[i] = sa
- case RTAX_NETMASK, RTAX_GENMASK:
- switch af {
- case AF_INET:
- rsa4 := (*RawSockaddrInet4)(unsafe.Pointer(&buf[0]))
- sa := new(SockaddrInet4)
- for j := 0; rsa4.Len > 0 && j < int(rsa4.Len)-int(unsafe.Offsetof(rsa4.Addr)); j++ {
- sa.Addr[j] = rsa4.Addr[j]
- }
- sas[i] = sa
- case AF_INET6:
- rsa6 := (*RawSockaddrInet6)(unsafe.Pointer(&buf[0]))
- sa := new(SockaddrInet6)
- for j := 0; rsa6.Len > 0 && j < int(rsa6.Len)-int(unsafe.Offsetof(rsa6.Addr)); j++ {
- sa.Addr[j] = rsa6.Addr[j]
- }
- sas[i] = sa
- }
- }
- buf = buf[rsaAlignOf(int(rsa.Len)):]
- }
-
- return sas[:]
-}
-
-// InterfaceMessage represents a routing message containing
-// network interface entries.
-type InterfaceMessage struct {
- Header IfMsghdr
- Data []byte
-}
-
-func (m *InterfaceMessage) sockaddr() (sas []Sockaddr) {
- if m.Header.Addrs&RTA_IFP == 0 {
- return nil
- }
- sa, err := anyToSockaddr((*RawSockaddrAny)(unsafe.Pointer(&m.Data[0])))
- if err != nil {
- return nil
- }
- return append(sas, sa)
-}
-
-// InterfaceAddrMessage represents a routing message containing
-// network interface address entries.
-type InterfaceAddrMessage struct {
- Header IfaMsghdr
- Data []byte
-}
-
-const rtaIfaMask = RTA_IFA | RTA_NETMASK | RTA_BRD
-
-func (m *InterfaceAddrMessage) sockaddr() (sas []Sockaddr) {
- if m.Header.Addrs&rtaIfaMask == 0 {
- return nil
- }
-
- buf := m.Data[:]
- for i := uint(0); i < RTAX_MAX; i++ {
- if m.Header.Addrs&rtaIfaMask&(1<<i) == 0 {
- continue
- }
- rsa := (*RawSockaddr)(unsafe.Pointer(&buf[0]))
- switch i {
- case RTAX_IFA:
- sa, err := anyToSockaddr((*RawSockaddrAny)(unsafe.Pointer(rsa)))
- if err != nil {
- return nil
- }
- sas = append(sas, sa)
- case RTAX_NETMASK:
- if rsa.Family == AF_UNSPEC {
- rsa.Family = AF_INET // an old fasion, AF_UNSPEC means AF_INET
- }
- sa, err := anyToSockaddr((*RawSockaddrAny)(unsafe.Pointer(rsa)))
- if err != nil {
- return nil
- }
- sas = append(sas, sa)
- case RTAX_BRD:
- // nothing to do
- }
- buf = buf[rsaAlignOf(int(rsa.Len)):]
- }
-
- return sas
-}
-
-// ParseRoutingMessage parses buf as routing messages and returns
-// the slice containing the RoutingMessage interfaces.
-func ParseRoutingMessage(buf []byte) (msgs []RoutingMessage, err error) {
- for len(buf) >= anyMessageLen {
- any := (*anyMessage)(unsafe.Pointer(&buf[0]))
- if any.Version != RTM_VERSION {
- return nil, EINVAL
- }
- msgs = append(msgs, any.toRoutingMessage(buf))
- buf = buf[any.Msglen:]
- }
- return msgs, nil
-}
-
-// ParseRoutingMessage parses msg's payload as raw sockaddrs and
-// returns the slice containing the Sockaddr interfaces.
-func ParseRoutingSockaddr(msg RoutingMessage) (sas []Sockaddr, err error) {
- return append(sas, msg.sockaddr()...), nil
-}