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// Copyright 2019 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 linux
package unix
import (
"reflect"
"testing"
"unsafe"
)
func Test_anyToSockaddr(t *testing.T) {
tests := []struct {
name string
rsa *RawSockaddrAny
sa Sockaddr
err error
}{
{
name: "AF_TIPC bad addrtype",
rsa: &RawSockaddrAny{
Addr: RawSockaddr{
Family: AF_TIPC,
},
},
err: EINVAL,
},
{
name: "AF_TIPC NameSeq",
rsa: sockaddrTIPCToAny(RawSockaddrTIPC{
Family: AF_TIPC,
Addrtype: TIPC_SERVICE_RANGE,
Scope: 1,
Addr: (&TIPCServiceRange{
Type: 1,
Lower: 2,
Upper: 3,
}).tipcAddr(),
}),
sa: &SockaddrTIPC{
Scope: 1,
Addr: &TIPCServiceRange{
Type: 1,
Lower: 2,
Upper: 3,
},
},
},
{
name: "AF_TIPC Name",
rsa: sockaddrTIPCToAny(RawSockaddrTIPC{
Family: AF_TIPC,
Addrtype: TIPC_SERVICE_ADDR,
Scope: 2,
Addr: (&TIPCServiceName{
Type: 1,
Instance: 2,
Domain: 3,
}).tipcAddr(),
}),
sa: &SockaddrTIPC{
Scope: 2,
Addr: &TIPCServiceName{
Type: 1,
Instance: 2,
Domain: 3,
},
},
},
{
name: "AF_TIPC ID",
rsa: sockaddrTIPCToAny(RawSockaddrTIPC{
Family: AF_TIPC,
Addrtype: TIPC_SOCKET_ADDR,
Scope: 3,
Addr: (&TIPCSocketAddr{
Ref: 1,
Node: 2,
}).tipcAddr(),
}),
sa: &SockaddrTIPC{
Scope: 3,
Addr: &TIPCSocketAddr{
Ref: 1,
Node: 2,
},
},
},
{
name: "AF_MAX EAFNOSUPPORT",
rsa: &RawSockaddrAny{
Addr: RawSockaddr{
Family: AF_MAX,
},
},
err: EAFNOSUPPORT,
},
// TODO: expand to support other families.
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// TODO: parameterize fd (and its setup) when needed.
sa, err := anyToSockaddr(0, tt.rsa)
if err != tt.err {
t.Fatalf("unexpected error: %v, want: %v", err, tt.err)
}
if !reflect.DeepEqual(sa, tt.sa) {
t.Fatalf("unexpected Sockaddr:\n got: %#v\nwant: %#v", sa, tt.sa)
}
})
}
}
func TestSockaddrTIPC_sockaddr(t *testing.T) {
tests := []struct {
name string
sa *SockaddrTIPC
raw *RawSockaddrTIPC
err error
}{
{
name: "no fields set",
sa: &SockaddrTIPC{},
err: EINVAL,
},
{
name: "ID",
sa: &SockaddrTIPC{
Scope: 1,
Addr: &TIPCSocketAddr{
Ref: 1,
Node: 2,
},
},
raw: &RawSockaddrTIPC{
Family: AF_TIPC,
Addrtype: TIPC_SOCKET_ADDR,
Scope: 1,
Addr: (&TIPCSocketAddr{
Ref: 1,
Node: 2,
}).tipcAddr(),
},
},
{
name: "NameSeq",
sa: &SockaddrTIPC{
Scope: 2,
Addr: &TIPCServiceRange{
Type: 1,
Lower: 2,
Upper: 3,
},
},
raw: &RawSockaddrTIPC{
Family: AF_TIPC,
Addrtype: TIPC_SERVICE_RANGE,
Scope: 2,
Addr: (&TIPCServiceRange{
Type: 1,
Lower: 2,
Upper: 3,
}).tipcAddr(),
},
},
{
name: "Name",
sa: &SockaddrTIPC{
Scope: 3,
Addr: &TIPCServiceName{
Type: 1,
Instance: 2,
Domain: 3,
},
},
raw: &RawSockaddrTIPC{
Family: AF_TIPC,
Addrtype: TIPC_SERVICE_ADDR,
Scope: 3,
Addr: (&TIPCServiceName{
Type: 1,
Instance: 2,
Domain: 3,
}).tipcAddr(),
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
out, l, err := tt.sa.sockaddr()
if err != tt.err {
t.Fatalf("unexpected error: %v, want: %v", err, tt.err)
}
// Must be 0 on error or a fixed size otherwise.
if (tt.err != nil && l != 0) || (tt.raw != nil && l != SizeofSockaddrTIPC) {
t.Fatalf("unexpected Socklen: %d", l)
}
if out == nil {
// No pointer to cast, return early.
return
}
raw := (*RawSockaddrTIPC)(out)
if !reflect.DeepEqual(raw, tt.raw) {
t.Fatalf("unexpected RawSockaddrTIPC:\n got: %#v\nwant: %#v", raw, tt.raw)
}
})
}
}
func sockaddrTIPCToAny(in RawSockaddrTIPC) *RawSockaddrAny {
var out RawSockaddrAny
// Explicitly copy the contents of in into out to produce the correct
// sockaddr structure, without relying on unsafe casting to a type of a
// larger size.
copy(
(*(*[SizeofSockaddrAny]byte)(unsafe.Pointer(&out)))[:],
(*(*[SizeofSockaddrTIPC]byte)(unsafe.Pointer(&in)))[:],
)
return &out
}