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unix: add bindings for keyutils syscalls

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This CL adds support for the ADD_KEY, REQUESET_KEY, and KEYCTL syscalls.
These syscalls allow access to the kernel keyring facilities. In C code,
these syscalls are wrapped by the libkeyutils package. See:
	http://man7.org/linux/man-pages/man7/keyutils.7.html

The ADD_KEY and REQUEST_KEY calls are fairly straightforward, but the
KEYCTL syscall is a multiplexor for a number of key management
functions. See:
	http://man7.org/linux/man-pages/man3/keyctl.3.html

The Go bindings for the KEYCTL functions attempt to replicate what
libkeyutils does. This is done via generated helper functions.

Change-Id: If8c97d4ef5bce14c43dee3e6772ded42dc3c595a
Reviewed-on: https://go-review.googlesource.com/41415
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Joe Richey joerichey@google.com
2017-05-18 22:39:15 +00:00
committed by Brad Fitzpatrick
parent e62c3de784
commit a2e06a18b0
36 changed files with 21483 additions and 19191 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/zsyscall_linux_arm64.go
+151
View File
@@ -186,6 +186,104 @@ func wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func KeyctlInt(cmd int, arg2 int, arg3 int, arg4 int, arg5 int) (ret int, err error) {
r0, _, e1 := Syscall6(SYS_KEYCTL, uintptr(cmd), uintptr(arg2), uintptr(arg3), uintptr(arg4), uintptr(arg5), 0)
ret = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func KeyctlBuffer(cmd int, arg2 int, buf []byte, arg5 int) (ret int, err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_KEYCTL, uintptr(cmd), uintptr(arg2), uintptr(_p0), uintptr(len(buf)), uintptr(arg5), 0)
ret = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func keyctlJoin(cmd int, arg2 string) (ret int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(arg2)
if err != nil {
return
}
r0, _, e1 := Syscall(SYS_KEYCTL, uintptr(cmd), uintptr(unsafe.Pointer(_p0)), 0)
ret = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func keyctlSearch(cmd int, arg2 int, arg3 string, arg4 string, arg5 int) (ret int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(arg3)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(arg4)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_KEYCTL, uintptr(cmd), uintptr(arg2), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(arg5), 0)
ret = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func keyctlIOV(cmd int, arg2 int, payload []Iovec, arg5 int) (err error) {
var _p0 unsafe.Pointer
if len(payload) > 0 {
_p0 = unsafe.Pointer(&payload[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
_, _, e1 := Syscall6(SYS_KEYCTL, uintptr(cmd), uintptr(arg2), uintptr(_p0), uintptr(len(payload)), uintptr(arg5), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func keyctlDH(cmd int, arg2 *KeyctlDHParams, buf []byte) (ret int, err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
_p0 = unsafe.Pointer(&buf[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_KEYCTL, uintptr(cmd), uintptr(unsafe.Pointer(arg2)), uintptr(_p0), uintptr(len(buf)), 0, 0)
ret = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
_, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
if e1 != 0 {
@@ -251,6 +349,33 @@ func Acct(path string) (err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func AddKey(keyType string, description string, payload []byte, ringid int) (id int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(keyType)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(description)
if err != nil {
return
}
var _p2 unsafe.Pointer
if len(payload) > 0 {
_p2 = unsafe.Pointer(&payload[0])
} else {
_p2 = unsafe.Pointer(&_zero)
}
r0, _, e1 := Syscall6(SYS_ADD_KEY, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(_p2), uintptr(len(payload)), uintptr(ringid), 0)
id = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Adjtimex(buf *Timex) (state int, err error) {
r0, _, e1 := Syscall(SYS_ADJTIMEX, uintptr(unsafe.Pointer(buf)), 0, 0)
state = int(r0)
@@ -851,6 +976,32 @@ func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err e
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func RequestKey(keyType string, description string, callback string, destRingid int) (id int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(keyType)
if err != nil {
return
}
var _p1 *byte
_p1, err = BytePtrFromString(description)
if err != nil {
return
}
var _p2 *byte
_p2, err = BytePtrFromString(callback)
if err != nil {
return
}
r0, _, e1 := Syscall6(SYS_REQUEST_KEY, uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), uintptr(unsafe.Pointer(_p2)), uintptr(destRingid), 0, 0)
id = int(r0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setdomainname(p []byte) (err error) {
var _p0 unsafe.Pointer
if len(p) > 0 {