unix: support vsock for darwin

Change-Id: Id53e2b0d0dc3b83762bb4ccc001d4e40f738de73
Reviewed-on: https://go-review.googlesource.com/c/sys/+/352209
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>

unix/mkerrors.sh

@@ -54,7 +54,7 @@ includes_AIX='
 
 includes_Darwin='
 #define _DARWIN_C_SOURCE
-#define KERNEL
+#define KERNEL 1
 #define _DARWIN_USE_64_BIT_INODE
 #define __APPLE_USE_RFC_3542
 #include <stdint.h>
@@ -75,6 +75,7 @@ includes_Darwin='
 #include <sys/utsname.h>
 #include <sys/wait.h>
 #include <sys/xattr.h>
+#include <sys/vsock.h>
 #include <net/bpf.h>
 #include <net/if.h>
 #include <net/if_types.h>
@@ -82,6 +83,9 @@ includes_Darwin='
 #include <netinet/in.h>
 #include <netinet/ip.h>
 #include <termios.h>
+
+// for backwards compatibility because moved TIOCREMOTE to Kernel.framework after MacOSX12.0.sdk.
+#define TIOCREMOTE 0x80047469
 '
 
 includes_DragonFly='
@@ -466,7 +470,6 @@ ccflags="$@"
 		$2 !~ /^EQUIV_/ &&
 		$2 !~ /^EXPR_/ &&
 		$2 !~ /^EVIOC/ &&
-		$2 !~ /^EV_/ &&
 		$2 ~ /^E[A-Z0-9_]+$/ ||
 		$2 ~ /^B[0-9_]+$/ ||
 		$2 ~ /^(OLD|NEW)DEV$/ ||

unix/types_darwin.go

@@ -16,7 +16,7 @@ package unix
 
 /*
 #define __DARWIN_UNIX03 0
-#define KERNEL
+#define KERNEL 1
 #define _DARWIN_USE_64_BIT_INODE
 #include <dirent.h>
 #include <fcntl.h>
@@ -47,6 +47,7 @@ package unix
 #include <sys/un.h>
 #include <sys/utsname.h>
 #include <sys/wait.h>
+#include <sys/vsock.h>
 #include <net/bpf.h>
 #include <net/if.h>
 #include <net/if_dl.h>
@@ -153,6 +154,18 @@ type RawSockaddrAny C.struct_sockaddr_any
 
 type RawSockaddrCtl C.struct_sockaddr_ctl
 
+type RawSockaddrVM C.struct_sockaddr_vm
+
+type XVSockPCB C.struct_xvsockpcb
+
+type XSocket C.struct_xsocket
+
+type XSocket64 C.struct_xsocket64
+
+type XSockbuf C.struct_xsockbuf
+
+type XVSockPgen C.struct_xvsockpgen
+
 type _Socklen C.socklen_t
 
 type Xucred C.struct_xucred
@@ -186,6 +199,11 @@ const (
 	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
 	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
 	SizeofSockaddrCtl      = C.sizeof_struct_sockaddr_ctl
+	SizeofSockaddrVM       = C.sizeof_struct_sockaddr_vm
+	SizeofXvsockpcb        = C.sizeof_struct_xvsockpcb
+	SizeofXSocket          = C.sizeof_struct_xsocket
+	SizeofXSockbuf         = C.sizeof_struct_xsockbuf
+	SizeofXVSockPgen       = C.sizeof_struct_xvsockpgen
 	SizeofXucred           = C.sizeof_struct_xucred
 	SizeofLinger           = C.sizeof_struct_linger
 	SizeofIovec            = C.sizeof_struct_iovec

unix/ztypes_darwin_amd64.go

@@ -209,6 +209,92 @@ type RawSockaddrCtl struct {
 	Sc_reserved [5]uint32
 }
 
+type RawSockaddrVM struct {
+	Len       uint8
+	Family    uint8
+	Reserved1 uint16
+	Port      uint32
+	Cid       uint32
+}
+
+type XVSockPCB struct {
+	Xv_len           uint32
+	Xv_vsockpp       uint64
+	Xvp_local_cid    uint32
+	Xvp_local_port   uint32
+	Xvp_remote_cid   uint32
+	Xvp_remote_port  uint32
+	Xvp_rxcnt        uint32
+	Xvp_txcnt        uint32
+	Xvp_peer_rxhiwat uint32
+	Xvp_peer_rxcnt   uint32
+	Xvp_last_pid     int32
+	Xvp_gencnt       uint64
+	Xv_socket        XSocket
+	_                [4]byte
+}
+
+type XSocket struct {
+	Xso_len      uint32
+	Xso_so       uint32
+	So_type      int16
+	So_options   int16
+	So_linger    int16
+	So_state     int16
+	So_pcb       uint32
+	Xso_protocol int32
+	Xso_family   int32
+	So_qlen      int16
+	So_incqlen   int16
+	So_qlimit    int16
+	So_timeo     int16
+	So_error     uint16
+	So_pgid      int32
+	So_oobmark   uint32
+	So_rcv       XSockbuf
+	So_snd       XSockbuf
+	So_uid       uint32
+}
+
+type XSocket64 struct {
+	Xso_len      uint32
+	_            [8]byte
+	So_type      int16
+	So_options   int16
+	So_linger    int16
+	So_state     int16
+	_            [8]byte
+	Xso_protocol int32
+	Xso_family   int32
+	So_qlen      int16
+	So_incqlen   int16
+	So_qlimit    int16
+	So_timeo     int16
+	So_error     uint16
+	So_pgid      int32
+	So_oobmark   uint32
+	So_rcv       XSockbuf
+	So_snd       XSockbuf
+	So_uid       uint32
+}
+
+type XSockbuf struct {
+	Cc    uint32
+	Hiwat uint32
+	Mbcnt uint32
+	Mbmax uint32
+	Lowat int32
+	Flags int16
+	Timeo int16
+}
+
+type XVSockPgen struct {
+	Len   uint32
+	Count uint64
+	Gen   uint64
+	Sogen uint64
+}
+
 type _Socklen uint32
 
 type Xucred struct {
@@ -287,6 +373,11 @@ const (
 	SizeofSockaddrUnix     = 0x6a
 	SizeofSockaddrDatalink = 0x14
 	SizeofSockaddrCtl      = 0x20
+	SizeofSockaddrVM       = 0xc
+	SizeofXvsockpcb        = 0xa8
+	SizeofXSocket          = 0x64
+	SizeofXSockbuf         = 0x18
+	SizeofXVSockPgen       = 0x20
 	SizeofXucred           = 0x4c
 	SizeofLinger           = 0x8
 	SizeofIovec            = 0x10

unix/ztypes_darwin_arm64.go

@@ -209,6 +209,92 @@ type RawSockaddrCtl struct {
 	Sc_reserved [5]uint32
 }
 
+type RawSockaddrVM struct {
+	Len       uint8
+	Family    uint8
+	Reserved1 uint16
+	Port      uint32
+	Cid       uint32
+}
+
+type XVSockPCB struct {
+	Xv_len           uint32
+	Xv_vsockpp       uint64
+	Xvp_local_cid    uint32
+	Xvp_local_port   uint32
+	Xvp_remote_cid   uint32
+	Xvp_remote_port  uint32
+	Xvp_rxcnt        uint32
+	Xvp_txcnt        uint32
+	Xvp_peer_rxhiwat uint32
+	Xvp_peer_rxcnt   uint32
+	Xvp_last_pid     int32
+	Xvp_gencnt       uint64
+	Xv_socket        XSocket
+	_                [4]byte
+}
+
+type XSocket struct {
+	Xso_len      uint32
+	Xso_so       uint32
+	So_type      int16
+	So_options   int16
+	So_linger    int16
+	So_state     int16
+	So_pcb       uint32
+	Xso_protocol int32
+	Xso_family   int32
+	So_qlen      int16
+	So_incqlen   int16
+	So_qlimit    int16
+	So_timeo     int16
+	So_error     uint16
+	So_pgid      int32
+	So_oobmark   uint32
+	So_rcv       XSockbuf
+	So_snd       XSockbuf
+	So_uid       uint32
+}
+
+type XSocket64 struct {
+	Xso_len      uint32
+	_            [8]byte
+	So_type      int16
+	So_options   int16
+	So_linger    int16
+	So_state     int16
+	_            [8]byte
+	Xso_protocol int32
+	Xso_family   int32
+	So_qlen      int16
+	So_incqlen   int16
+	So_qlimit    int16
+	So_timeo     int16
+	So_error     uint16
+	So_pgid      int32
+	So_oobmark   uint32
+	So_rcv       XSockbuf
+	So_snd       XSockbuf
+	So_uid       uint32
+}
+
+type XSockbuf struct {
+	Cc    uint32
+	Hiwat uint32
+	Mbcnt uint32
+	Mbmax uint32
+	Lowat int32
+	Flags int16
+	Timeo int16
+}
+
+type XVSockPgen struct {
+	Len   uint32
+	Count uint64
+	Gen   uint64
+	Sogen uint64
+}
+
 type _Socklen uint32
 
 type Xucred struct {
@@ -287,6 +373,11 @@ const (
 	SizeofSockaddrUnix     = 0x6a
 	SizeofSockaddrDatalink = 0x14
 	SizeofSockaddrCtl      = 0x20
+	SizeofSockaddrVM       = 0xc
+	SizeofXvsockpcb        = 0xa8
+	SizeofXSocket          = 0x64
+	SizeofXSockbuf         = 0x18
+	SizeofXVSockPgen       = 0x20
 	SizeofXucred           = 0x4c
 	SizeofLinger           = 0x8
 	SizeofIovec            = 0x10