syscall: add aix to syscall_unix_test.go

This file was forgotten during the port of aix/ppc64. In order to make
its tests passed, a few things were added:
- Add termios.h to zerrors
- Add AF_LOCAL = AF_UNIX as this constant doesn't exits natively on AIX
- Fix the alignment in cmsghdr structure.

TestPassFD doesn't work on AIX TL<2 because getsockname isn't working as
expected with unix socket.

Change-Id: I928705bfc78ada29e66df61fe97d8f379f8c739b
Reviewed-on: https://go-review.googlesource.com/c/go/+/171339
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/syscall/mkerrors.sh

@@ -28,6 +28,7 @@ includes_AIX='
 #include <sys/protosw.h>
 #include <sys/ptrace.h>
 #include <sys/stropts.h>
+#include <termios.h>
 '
 
 includes_Darwin='

src/syscall/sockcmsg_unix.go

@@ -18,6 +18,9 @@ func cmsgAlignOf(salen int) int {
 	salign := sizeofPtr
 
 	switch runtime.GOOS {
+	case "aix":
+		// There is no alignment on AIX.
+		salign = 1
 	case "darwin", "dragonfly", "solaris":
 		// NOTE: It seems like 64-bit Darwin, DragonFly BSD and
 		// Solaris kernels still require 32-bit aligned access to

src/syscall/syscall_aix.go

@@ -28,6 +28,11 @@ const (
 	SYS_FCNTL
 )
 
+const (
+	// AF_LOCAL doesn't exist on AIX
+	AF_LOCAL = AF_UNIX
+)
+
 func (ts *StTimespec_t) Unix() (sec int64, nsec int64) {
 	return int64(ts.Sec), int64(ts.Nsec)
 }
@@ -601,6 +606,7 @@ func PtraceDetach(pid int) (err error) { return ptrace64(PT_DETACH, int64(pid),
 //sys	Geteuid() (euid int)
 //sys	Getegid() (egid int)
 //sys	Getppid() (ppid int)
+//sys	Getpriority(which int, who int) (n int, err error)
 //sysnb	Getrlimit(which int, lim *Rlimit) (err error)
 //sysnb	Getuid() (uid int)
 //sys	Kill(pid int, signum Signal) (err error)
@@ -623,6 +629,7 @@ func PtraceDetach(pid int) (err error) { return ptrace64(PT_DETACH, int64(pid),
 //sysnb	Seteuid(euid int) (err error)
 //sysnb	Setgid(gid int) (err error)
 //sysnb	Setpgid(pid int, pgid int) (err error)
+//sys	Setpriority(which int, who int, prio int) (err error)
 //sysnb	Setregid(rgid int, egid int) (err error)
 //sysnb	Setreuid(ruid int, euid int) (err error)
 //sysnb	Setrlimit(which int, lim *Rlimit) (err error)

src/syscall/syscall_unix_test.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 dragonfly freebsd linux netbsd openbsd solaris
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package syscall_test
 
@@ -17,6 +17,7 @@ import (
 	"os/exec"
 	"path/filepath"
 	"runtime"
+	"strconv"
 	"syscall"
 	"testing"
 	"time"
@@ -131,6 +132,26 @@ func TestFcntlFlock(t *testing.T) {
 func TestPassFD(t *testing.T) {
 	testenv.MustHaveExec(t)
 
+	if runtime.GOOS == "aix" {
+		// Unix network isn't properly working on AIX 7.2 with Technical Level < 2
+		out, err := exec.Command("oslevel", "-s").Output()
+		if err != nil {
+			t.Skipf("skipping on AIX because oslevel -s failed: %v", err)
+		}
+		if len(out) < len("7200-XX-ZZ-YYMM") { // AIX 7.2, Tech Level XX, Service Pack ZZ, date YYMM
+			t.Skip("skipping on AIX because oslevel -s hasn't the right length")
+		}
+		aixVer := string(out[:4])
+		tl, err := strconv.Atoi(string(out[5:7]))
+		if err != nil {
+			t.Skipf("skipping on AIX because oslevel -s output cannot be parsed: %v", err)
+		}
+		if aixVer < "7200" || (aixVer == "7200" && tl < 2) {
+			t.Skip("skipped on AIX versions previous to 7.2 TL 2")
+		}
+
+	}
+
 	if os.Getenv("GO_WANT_HELPER_PROCESS") == "1" {
 		passFDChild()
 		return

src/syscall/zerrors_aix_ppc64.go

@@ -54,12 +54,28 @@ const (
 	B600                          = 0x8
 	B75                           = 0x2
 	B9600                         = 0xd
+	BRKINT                        = 0x2
 	CFLUSH                        = 0xf
+	CLOCAL                        = 0x800
+	CREAD                         = 0x80
+	CS5                           = 0x0
+	CS6                           = 0x10
+	CS7                           = 0x20
+	CS8                           = 0x30
 	CSIOCGIFCONF                  = -0x3fef96dc
+	CSIZE                         = 0x30
+	CSMAP_DIR                     = "/usr/lib/nls/csmap/"
 	CSTART                        = '\021'
 	CSTOP                         = '\023'
+	CSTOPB                        = 0x40
 	CSUSP                         = 0x1a
 	ECHO                          = 0x8
+	ECHOCTL                       = 0x20000
+	ECHOE                         = 0x10
+	ECHOK                         = 0x20
+	ECHOKE                        = 0x80000
+	ECHONL                        = 0x40
+	ECHOPRT                       = 0x40000
 	ECH_ICMPID                    = 0x2
 	ETHERNET_CSMACD               = 0x6
 	EVENP                         = 0x80
@@ -108,11 +124,15 @@ const (
 	F_ULOCK                       = 0x0
 	F_UNLCK                       = 0x3
 	F_WRLCK                       = 0x2
+	HUPCL                         = 0x400
+	ICANON                        = 0x2
 	ICMP6_FILTER                  = 0x26
 	ICMP6_SEC_SEND_DEL            = 0x46
 	ICMP6_SEC_SEND_GET            = 0x47
 	ICMP6_SEC_SEND_SET            = 0x44
 	ICMP6_SEC_SEND_SET_CGA_ADDR   = 0x45
+	ICRNL                         = 0x100
+	IEXTEN                        = 0x200000
 	IFA_FIRSTALIAS                = 0x2000
 	IFA_ROUTE                     = 0x1
 	IFF_64BIT                     = 0x4000000
@@ -216,6 +236,12 @@ const (
 	IFT_X25DDN                    = 0x4
 	IFT_X25PLE                    = 0x28
 	IFT_XETHER                    = 0x1a
+	IGNBRK                        = 0x1
+	IGNCR                         = 0x80
+	IGNPAR                        = 0x4
+	IMAXBEL                       = 0x10000
+	INLCR                         = 0x40
+	INPCK                         = 0x10
 	IN_CLASSA_HOST                = 0xffffff
 	IN_CLASSA_MAX                 = 0x80
 	IN_CLASSA_NET                 = 0xff000000
@@ -369,6 +395,11 @@ const (
 	IP_TTL                        = 0x4
 	IP_UNBLOCK_SOURCE             = 0x3b
 	IP_UNICAST_HOPS               = 0x4
+	ISIG                          = 0x1
+	ISTRIP                        = 0x20
+	IXANY                         = 0x1000
+	IXOFF                         = 0x400
+	IXON                          = 0x200
 	I_FLUSH                       = 0x20005305
 	LNOFLSH                       = 0x8000
 	LOCK_EX                       = 0x2
@@ -413,7 +444,16 @@ const (
 	MS_INVALIDATE                 = 0x40
 	MS_PER_SEC                    = 0x3e8
 	MS_SYNC                       = 0x20
+	NOFLSH                        = 0x80
 	NOFLUSH                       = 0x80000000
+	OCRNL                         = 0x8
+	OFDEL                         = 0x80
+	OFILL                         = 0x40
+	ONLCR                         = 0x4
+	ONLRET                        = 0x20
+	ONOCR                         = 0x10
+	ONOEOT                        = 0x80000
+	OPOST                         = 0x1
 	O_ACCMODE                     = 0x23
 	O_APPEND                      = 0x8
 	O_CIO                         = 0x80
@@ -448,6 +488,10 @@ const (
 	O_TRUNC                       = 0x200
 	O_TTY_INIT                    = 0x0
 	O_WRONLY                      = 0x1
+	PARENB                        = 0x100
+	PAREXT                        = 0x100000
+	PARMRK                        = 0x8
+	PARODD                        = 0x200
 	PENDIN                        = 0x20000000
 	PRIO_PGRP                     = 0x1
 	PRIO_PROCESS                  = 0x0
@@ -794,6 +838,9 @@ const (
 	S_RESFMT8                     = 0x2c000000
 	S_WRBAND                      = 0x80
 	S_WRNORM                      = 0x40
+	TCIFLUSH                      = 0x0
+	TCIOFLUSH                     = 0x2
+	TCOFLUSH                      = 0x1
 	TCP_24DAYS_WORTH_OF_SLOWTICKS = 0x3f4800
 	TCP_ACLADD                    = 0x23
 	TCP_ACLBIND                   = 0x26
@@ -834,6 +881,7 @@ const (
 	TCP_STDURG                    = 0x10
 	TCP_TIMESTAMP_OPTLEN          = 0xc
 	TCP_UNSETPRIV                 = 0x28
+	TCSAFLUSH                     = 0x2
 	TIOCCBRK                      = 0x2000747a
 	TIOCCDTR                      = 0x20007478
 	TIOCCONS                      = 0xffffffff80047462
@@ -897,7 +945,28 @@ const (
 	TIOCSWINSZ                    = 0xffffffff80087467
 	TIOCUCNTL                     = 0xffffffff80047466
 	TOSTOP                        = 0x10000
+	VDISCRD                       = 0xc
+	VDSUSP                        = 0xa
+	VEOF                          = 0x4
+	VEOL                          = 0x5
+	VEOL2                         = 0x6
+	VERASE                        = 0x2
+	VINTR                         = 0x0
+	VKILL                         = 0x3
+	VLNEXT                        = 0xe
+	VMIN                          = 0x4
+	VQUIT                         = 0x1
+	VREPRINT                      = 0xb
+	VSTART                        = 0x7
+	VSTOP                         = 0x8
+	VSTRT                         = 0x7
+	VSUSP                         = 0x9
+	VT0                           = 0x0
+	VT1                           = 0x8000
 	VTDELAY                       = 0x2000
+	VTDLY                         = 0x8000
+	VTIME                         = 0x5
+	VWERSE                        = 0xd
 	WPARSTART                     = 0x1
 	WPARSTOP                      = 0x2
 	WPARTTYNAME                   = "Global"

src/syscall/zsyscall_aix_ppc64.go

@@ -60,6 +60,7 @@ import "unsafe"
 //go:cgo_import_dynamic libc_Geteuid geteuid "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Getegid getegid "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Getppid getppid "libc.a/shr_64.o"
+//go:cgo_import_dynamic libc_Getpriority getpriority "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Getrlimit getrlimit "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Getuid getuid "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Kill kill "libc.a/shr_64.o"
@@ -82,6 +83,7 @@ import "unsafe"
 //go:cgo_import_dynamic libc_Seteuid seteuid "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Setgid setgid "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Setpgid setpgid "libc.a/shr_64.o"
+//go:cgo_import_dynamic libc_Setpriority setpriority "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Setregid setregid "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Setreuid setreuid "libc.a/shr_64.o"
 //go:cgo_import_dynamic libc_Setrlimit setrlimit "libc.a/shr_64.o"
@@ -150,6 +152,7 @@ import "unsafe"
 //go:linkname libc_Geteuid libc_Geteuid
 //go:linkname libc_Getegid libc_Getegid
 //go:linkname libc_Getppid libc_Getppid
+//go:linkname libc_Getpriority libc_Getpriority
 //go:linkname libc_Getrlimit libc_Getrlimit
 //go:linkname libc_Getuid libc_Getuid
 //go:linkname libc_Kill libc_Kill
@@ -172,6 +175,7 @@ import "unsafe"
 //go:linkname libc_Seteuid libc_Seteuid
 //go:linkname libc_Setgid libc_Setgid
 //go:linkname libc_Setpgid libc_Setpgid
+//go:linkname libc_Setpriority libc_Setpriority
 //go:linkname libc_Setregid libc_Setregid
 //go:linkname libc_Setreuid libc_Setreuid
 //go:linkname libc_Setrlimit libc_Setrlimit
@@ -243,6 +247,7 @@ var (
 	libc_Geteuid,
 	libc_Getegid,
 	libc_Getppid,
+	libc_Getpriority,
 	libc_Getrlimit,
 	libc_Getuid,
 	libc_Kill,
@@ -265,6 +270,7 @@ var (
 	libc_Seteuid,
 	libc_Setgid,
 	libc_Setpgid,
+	libc_Setpriority,
 	libc_Setregid,
 	libc_Setreuid,
 	libc_Setrlimit,
@@ -898,6 +904,17 @@ func Getppid() (ppid int) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Getpriority(which int, who int) (n int, err error) {
+	r0, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_Getpriority)), 2, uintptr(which), uintptr(who), 0, 0, 0, 0)
+	n = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Getrlimit(which int, lim *Rlimit) (err error) {
 	_, _, e1 := rawSyscall6(uintptr(unsafe.Pointer(&libc_Getrlimit)), 2, uintptr(which), uintptr(unsafe.Pointer(lim)), 0, 0, 0, 0)
 	if e1 != 0 {
@@ -1198,6 +1215,16 @@ func Setpgid(pid int, pgid int) (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func Setpriority(which int, who int, prio int) (err error) {
+	_, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_Setpriority)), 3, uintptr(which), uintptr(who), uintptr(prio), 0, 0, 0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Setregid(rgid int, egid int) (err error) {
 	_, _, e1 := rawSyscall6(uintptr(unsafe.Pointer(&libc_Setregid)), 2, uintptr(rgid), uintptr(egid), 0, 0, 0, 0)
 	if e1 != 0 {