libproc: initial implements

Signed-off-by: Koichi Shiraishi <[email protected]>

Author: zchee

bsd_info_darwin_amd64.go

@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: 2021 The Go Darwin Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build ignore
+// +build ignore
+
+package libproc
+
+/*
+#cgo CFLAGS: -mmacosx-version-min=12.0
+
+#include <sys/proc_info.h>
+*/
+import "C"
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/param.h#L95
+const MaxComLen = C.MAXCOMLEN
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L63-L86
+type ProcBsdinfo C.struct_proc_bsdinfo

darwin_amd64.go

@@ -0,0 +1,60 @@
+// SPDX-FileCopyrightText: 2021 The Go Darwin Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build ignore
+// +build ignore
+
+package libproc
+
+/*
+#cgo CFLAGS: -mmacosx-version-min=12.0
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <libproc.h>
+*/
+import "C"
+
+const (
+	ProcPidpathinfoSize    = C.PROC_PIDPATHINFO_SIZE
+	ProcPidpathinfoMaxsize = C.PROC_PIDPATHINFO_MAXSIZE
+)
+
+type PID C.pid_t
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/libsyscall/wrappers/libproc/libproc.h#L41-L61
+const (
+	/*!
+	 *       @define PROC_LISTPIDSPATH_PATH_IS_VOLUME
+	 *       @discussion This flag indicates that all processes that hold open
+	 *               file references on the volume associated with the specified
+	 *               path should be returned.
+	 */
+	ProcListpidspathPathIsVolume = C.PROC_LISTPIDSPATH_PATH_IS_VOLUME
+
+	/*!
+	 *       @define PROC_LISTPIDSPATH_EXCLUDE_EVTONLY
+	 *       @discussion This flag indicates that file references that were opened
+	 *               with the O_EVTONLY flag should be excluded from the matching
+	 *               criteria.
+	 */
+	ProcListpidspathExcludeEvtonly = C.PROC_LISTPIDSPATH_EXCLUDE_EVTONLY
+)
+
+// ProcType used to specify what type of processes you are interested
+// in in other calls, such as `listpids`.
+type ProcType uint32
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L55-L61
+const (
+	ProcAllPids  ProcType = C.PROC_ALL_PIDS
+	ProcPgrpOnly ProcType = C.PROC_PGRP_ONLY
+	ProcTtyOnly  ProcType = C.PROC_TTY_ONLY
+	ProcUidOnly  ProcType = C.PROC_UID_ONLY
+	ProcRUIDOnly ProcType = C.PROC_RUID_ONLY
+	ProcPPIDOnly ProcType = C.PROC_PPID_ONLY
+	ProcKDBGOnly ProcType = C.PROC_KDBG_ONLY
+)
+
+type ProcTaskInfo C.struct_proc_taskinfo

file_info_darwin_amd64.go

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: 2021 The Go Darwin Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build ignore
+// +build ignore
+
+package libproc
+
+/*
+#cgo CFLAGS: -mmacosx-version-min=12.0
+
+#include <sys/proc_info.h>
+*/
+import "C"
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L727
+type ProcFDType C.uint32_t
+
+// defns of process file desc type
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L714-L723
+const (
+	ProxFDTypeAtalk     ProcFDType = C.PROX_FDTYPE_ATALK
+	ProxFDTypeVnode     ProcFDType = C.PROX_FDTYPE_VNODE
+	ProxFDTypeSocket    ProcFDType = C.PROX_FDTYPE_SOCKET
+	ProxFDTypePshm      ProcFDType = C.PROX_FDTYPE_PSHM
+	ProxFDTypePsem      ProcFDType = C.PROX_FDTYPE_PSEM
+	ProxFDTypeKqueue    ProcFDType = C.PROX_FDTYPE_KQUEUE
+	ProxFDTypePipe      ProcFDType = C.PROX_FDTYPE_PIPE
+	ProxFDTypeFsevents  ProcFDType = C.PROX_FDTYPE_FSEVENTS
+	ProxFDTypeNetpolicy ProcFDType = C.PROX_FDTYPE_NETPOLICY
+)

go.mod

@@ -1,3 +1,8 @@
 module go-darwin.dev/libproc
 
 go 1.17
+
+require (
+	go-darwin.dev/sys v0.0.0-20210627024002-32d42754375c
+	golang.org/x/sys v0.0.0-20210616094352-59db8d763f22
+)

go.sum

@@ -0,0 +1,4 @@
+go-darwin.dev/sys v0.0.0-20210627024002-32d42754375c h1:xG0zQnKQMsBPcBl1qe1ubT3qwHEPYpWohgUU94698e4=
+go-darwin.dev/sys v0.0.0-20210627024002-32d42754375c/go.mod h1:1KrBulURjz9K38r1eSysg/zBcdiEtaEDNPGbag0u5K0=
+golang.org/x/sys v0.0.0-20210616094352-59db8d763f22 h1:RqytpXGR1iVNX7psjB3ff8y7sNFinVFvkx1c8SjBkio=
+golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

kmesg_buffer_darwin_amd64.go

@@ -0,0 +1,18 @@
+// SPDX-FileCopyrightText: 2021 The Go Darwin Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build ignore
+// +build ignore
+
+package libproc
+
+/*
+#cgo CFLAGS: -mmacosx-version-min=12.0
+
+#include <sys/msgbuf.h>
+*/
+import "C"
+
+const (
+	MaxMsgBSize = C.MAX_MSG_BSIZE
+)

libproc.go

@@ -0,0 +1,85 @@
+// SPDX-FileCopyrightText: 2021 The Go Darwin Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build darwin && amd64 && gc
+// +build darwin,amd64,gc
+
+package libproc
+
+import (
+	_ "runtime" // for go:linkname
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+
+	"go-darwin.dev/sys"
+)
+
+// ProcListallpids retursn the list all pids.
+func ProcListallpids() (numPids int, err error) {
+	r1, _, kret := procListallpids()
+	if sys.KernReturn(kret) != sys.KernSuccess {
+		return 0, sys.KernErrno(sys.KernReturn(kret))
+	}
+
+	numPids = int(r1 / sys.Sizeof_C_int)
+	return
+}
+
+//go:nosplit
+func procListallpids() (r1, r2 uintptr, err unix.Errno) {
+	return sys.Syscall(libc_proc_listallpids_trampoline_addr, uintptr(0), uintptr(0), uintptr(0))
+}
+
+var libc_proc_listallpids_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_proc_listallpids proc_listallpids "/usr/lib/libproc.dylib"
+
+// ProcPidpath given a pid, returns the full executable name including directory
+// paths and the longer-than-16-chars executable name.
+func ProcPidpath(pid PID) (path string, err error) {
+	buffer := make([]byte, ProcPidpathinfoSize)
+	_, _, kret := procPidpath(pid, unsafe.Pointer(&buffer[0]), uint32(ProcPidpathinfoMaxsize))
+	if sys.KernReturn(kret) != sys.KernSuccess {
+		return "", sys.KernErrno(sys.KernReturn(kret))
+	}
+
+	path = sys.GoString(&buffer[0])
+	return
+}
+
+//go:nosplit
+func procPidpath(pid PID, buffer unsafe.Pointer, buffersize uint32) (r1, r2 uintptr, err unix.Errno) {
+	return sys.Syscall(libc_proc_pidpath_trampoline_addr, uintptr(pid), uintptr(buffer), uintptr(buffersize))
+}
+
+var libc_proc_pidpath_trampoline_addr uintptr
+
+//go:cgo_import_dynamic libc_proc_pidpath proc_pidpath "/usr/lib/libproc.dylib"
+
+// $ pushd internal/gen > /dev/null 2>&1; go run main.go -fname /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/libproc.h; popd > /dev/null 2>&1
+// TODO(zchee): int proc_listpidspath(uint32_t type, uint32_t typeinfo, const char * path, uint32_t pathflags, void * buffer, int buffersize)
+// TODO(zchee): int proc_listpids(uint32_t type, uint32_t typeinfo, void * buffer, int buffersize)
+// TODO(zchee): int proc_listpgrppids(pid_t pgrpid, void * buffer, int buffersize)
+// TODO(zchee): int proc_listchildpids(pid_t ppid, void * buffer, int buffersize)
+// TODO(zchee): int proc_pidinfo(int pid, int flavor, uint64_t arg, void * buffer, int buffersize)
+// TODO(zchee): int proc_pidfdinfo(int pid, int fd, int flavor, void * buffer, int buffersize)
+// TODO(zchee): int proc_pidfileportinfo(int pid, uint32_t fileport, int flavor, void * buffer, int buffersize)
+// TODO(zchee): int proc_name(int pid, void * buffer, uint32_t buffersize)
+// TODO(zchee): int proc_regionfilename(int pid, uint64_t address, void * buffer, uint32_t buffersize)
+// TODO(zchee): int proc_kmsgbuf(void * buffer, uint32_t buffersize)
+// TODO(zchee): int proc_pidpath_audittoken(audit_token_t * audittoken, void * buffer, uint32_t buffersize)
+// TODO(zchee): int proc_libversion(int * major, int * minor)
+// TODO(zchee): int proc_pid_rusage(int pid, int flavor, rusage_info_t * buffer)
+// TODO(zchee): int proc_setpcontrol(const int control)
+// TODO(zchee): int proc_setpcontrol(const int control)
+// TODO(zchee): int proc_track_dirty(pid_t pid, uint32_t flags)
+// TODO(zchee): int proc_set_dirty(pid_t pid, _Bool dirty)
+// TODO(zchee): int proc_get_dirty(pid_t pid, uint32_t * flags)
+// TODO(zchee): int proc_clear_dirty(pid_t pid, uint32_t flags)
+// TODO(zchee): int proc_terminate(pid_t pid, int * sig)
+// TODO(zchee): int proc_set_no_smt()
+// TODO(zchee): int proc_setthread_no_smt()
+// TODO(zchee): int proc_set_csm(uint32_t flags)
+// TODO(zchee): int proc_setthread_csm(uint32_t flags)
+// TODO(zchee): int proc_udata_info(int pid, int flavor, void * buffer, int buffersize)

libproc.s

@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: 2021 The Go Darwin Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build darwin && amd64 && gc
+// +build darwin,amd64,gc
+
+#include "textflag.h"
+
+// int proc_listallpids(void * buffer, int buffersize)
+GLOBL ·libc_proc_listallpids_trampoline_addr(SB), RODATA, $8
+DATA ·libc_proc_listallpids_trampoline_addr(SB)/8, $libc_proc_listallpids_trampoline<>(SB)
+
+TEXT libc_proc_listallpids_trampoline<>(SB), NOSPLIT, $0-0
+	JMP libc_proc_listallpids(SB)
+
+// int proc_pidpath(int pid, void * buffer, uint32_t buffersize)
+GLOBL ·libc_proc_pidpath_trampoline_addr(SB), RODATA, $8
+DATA ·libc_proc_pidpath_trampoline_addr(SB)/8, $libc_proc_pidpath_trampoline<>(SB)
+
+TEXT libc_proc_pidpath_trampoline<>(SB), NOSPLIT, $0-0
+	JMP libc_proc_pidpath(SB)

net_info_darwin_amd64.go

@@ -0,0 +1,121 @@
+// SPDX-FileCopyrightText: 2021 The Go Darwin Authors
+// SPDX-License-Identifier: BSD-3-Clause
+
+//go:build ignore
+// +build ignore
+
+// for in4in6_addr
+// +godefs map struct_in_addr  [4]byte // in_addr
+
+// for in_sockinfo
+// +godefs map struct___1 InsiV4 // insi_v4
+// +godefs map struct___2 InsiV6 // insi_v6
+
+package libproc
+
+/*
+#cgo CFLAGS: -mmacosx-version-min=12.0
+
+#include <stdlib.h>
+
+#include <sys/proc_info.h>
+
+struct insi_v4 {
+	u_char in4_tos;
+};
+
+struct insi_v6 {
+	uint8_t                 in6_hlim;
+	int                     in6_cksum;
+	u_short                 in6_ifindex;
+	short                   in6_hops;
+};
+
+// local host table entry
+union insi_laddr {
+	struct in4in6_addr      ina_46;
+	struct in6_addr         ina_6;
+};
+*/
+import "C"
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L614-L617
+type SocketFDinfo C.struct_socket_fdinfo
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L298-L304
+type ProcFileinfo C.struct_proc_fileinfo
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L714-L723
+const (
+	SockinfoGeneric   = C.SOCKINFO_GENERIC
+	SockinfoIn        = C.SOCKINFO_IN
+	SockinfoKernCtl   = C.SOCKINFO_KERN_CTL
+	SockinfoKernEvent = C.SOCKINFO_KERN_EVENT
+	SockinfoNdrv      = C.SOCKINFO_NDRV
+	SockinfoTCP       = C.SOCKINFO_TCP
+	SockinfoUn        = C.SOCKINFO_UN
+	SockinfoVsock     = C.SOCKINFO_VSOCK
+)
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L583-L612
+type SocketInfo C.struct_socket_info
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L332-L357
+type VInfoStat C.struct_vinfo_stat
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L562-L570
+type SockbufInfo C.struct_sockbuf_info
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/socket.h#L612-L619
+type SockProto C.struct_sockproto
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L414-L417
+type In4In6Addr C.struct_in4in6_addr
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L419-L447
+type InSockinfo C.struct_in_sockinfo
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L438-L440
+type InsiV4 C.struct_insi_v4
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L441-L446
+type InsiV6 C.struct_insi_v6
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L434-L437
+type InsiLaddr C.union_insi_laddr
+
+type TCPSIState C.int
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L459-L470
+const (
+	TSI_S_CLOSED       TCPSIState = C.TSI_S_CLOSED       // closed
+	TSI_S_LISTEN       TCPSIState = C.TSI_S_LISTEN       // listening for connection
+	TSI_S_SYN_SENT     TCPSIState = C.TSI_S_SYN_SENT     // active, have sent syn
+	TSI_S_SYN_RECEIVED TCPSIState = C.TSI_S_SYN_RECEIVED // have send and received syn
+	TSI_S_ESTABLISHED  TCPSIState = C.TSI_S_ESTABLISHED  // established
+	TSI_S__CLOSE_WAIT  TCPSIState = C.TSI_S__CLOSE_WAIT  // rcvd fin, waiting for close
+	TSI_S_FIN_WAIT_1   TCPSIState = C.TSI_S_FIN_WAIT_1   // have closed, sent fin
+	TSI_S_CLOSING      TCPSIState = C.TSI_S_CLOSING      // closed xchd FIN; await FIN ACK
+	TSI_S_LAST_ACK     TCPSIState = C.TSI_S_LAST_ACK     // had fin and close; await FIN ACK
+	TSI_S_FIN_WAIT_2   TCPSIState = C.TSI_S_FIN_WAIT_2   // have closed, fin is acked
+	TSI_S_TIME_WAIT    TCPSIState = C.TSI_S_TIME_WAIT    // in 2*msl quiet wait after close
+	TSI_S_RESERVED     TCPSIState = C.TSI_S_RESERVED     // pseudo state: reserved
+)
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L472-L480
+type TCPSockinfo C.struct_tcp_sockinfo
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L487-L498
+type UnSocinfo C.struct_un_sockinfo
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L504-L508
+type NdrvInfo C.struct_ndrv_info
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L514-L518
+type KernEventInfo C.struct_kern_event_info
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L524-L532
+type KernCTLInfo C.struct_kern_ctl_info
+
+// https://github.com/apple-opensource/xnu/blob/7195.101.1/bsd/sys/proc_info.h#L538-L543
+type VsockSockinfo C.struct_vsock_sockinfo