diff options
Diffstat (limited to 'src/pkg/syscall/route_bsd.go')
| -rw-r--r-- | src/pkg/syscall/route_bsd.go | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/src/pkg/syscall/route_bsd.go b/src/pkg/syscall/route_bsd.go index 62c5ce1a3..638073592 100644 --- a/src/pkg/syscall/route_bsd.go +++ b/src/pkg/syscall/route_bsd.go @@ -2,7 +2,7 @@ // 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 +// +build darwin dragonfly freebsd netbsd openbsd // Routing sockets and messages @@ -13,10 +13,14 @@ 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 { + // NOTE: It seems like 64-bit Darwin kernel still requires + // 32-bit aligned access to BSD subsystem. Also NetBSD 6 + // kernel and beyond require 64-bit aligned access to routing + // facilities. + if darwin64Bit { salign = 4 + } else if netbsd32Bit { + salign = 8 } if salen == 0 { return salign @@ -142,6 +146,12 @@ func (m *InterfaceAddrMessage) sockaddr() (sas []Sockaddr) { return nil } b := m.Data[:] + // We still see AF_UNSPEC in socket addresses on some + // platforms. To identify each address family correctly, we + // will use the address family of RTAX_NETMASK as a preferred + // one on the 32-bit NetBSD kernel, also use the length of + // RTAX_NETMASK socket address on the FreeBSD kernel. + preferredFamily := uint8(AF_UNSPEC) for i := uint(0); i < RTAX_MAX; i++ { if m.Header.Addrs&rtaIfaMask&(1<<i) == 0 { continue @@ -149,14 +159,29 @@ func (m *InterfaceAddrMessage) sockaddr() (sas []Sockaddr) { rsa := (*RawSockaddr)(unsafe.Pointer(&b[0])) switch i { case RTAX_IFA: + if rsa.Family == AF_UNSPEC { + rsa.Family = preferredFamily + } 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 + switch rsa.Family { + case AF_UNSPEC: + switch rsa.Len { + case SizeofSockaddrInet4: + rsa.Family = AF_INET + case SizeofSockaddrInet6: + rsa.Family = AF_INET6 + default: + rsa.Family = AF_INET // an old fashion, AF_UNSPEC means AF_INET + } + case AF_INET, AF_INET6: + preferredFamily = rsa.Family + default: + return nil } sa, err := anyToSockaddr((*RawSockaddrAny)(unsafe.Pointer(rsa))) if err != nil { |