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unix: add kernel module load/unload syscalls on Linux

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InitModule loads a kernel module from an ELF image. FinitModule loads a
kernel module from a file descriptor. DeleteModule unloads a kernel
module.

These syscalls require the CAP_SYS_MODULE capability.

See http://man7.org/linux/man-pages/man2/init_module.2.html and
http://man7.org/linux/man-pages/man2/delete_module.2.html for details.

Also drop deprecated syscalls related to kernel modules from the list
of unimplemented syscalls.

Change-Id: I131e17f02c5617640f5f4073982d2b27a6d78bbf
Reviewed-on: https://go-review.googlesource.com/c/144173
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Tobias Klauser
2018-10-26 06:49:43 +00:00
committed by Tobias Klauser
parent d989b31c87
commit 731415f00d
26 changed files with 641 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/zsyscall_linux_arm.go
+51
View File
@@ -458,6 +458,21 @@ func CopyFileRange(rfd int, roff *int64, wfd int, woff *int64, len int, flags in
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func DeleteModule(name string, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(name)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_DELETE_MODULE, uintptr(unsafe.Pointer(_p0)), uintptr(flags), 0)
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int) (fd int, err error) {
r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), 0, 0)
fd = int(r0)
@@ -606,6 +621,21 @@ func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func FinitModule(fd int, params string, flags int) (err error) {
var _p0 *byte
_p0, err = BytePtrFromString(params)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_FINIT_MODULE, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(flags))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Flistxattr(fd int, dest []byte) (sz int, err error) {
var _p0 unsafe.Pointer
if len(dest) > 0 {
@@ -807,6 +837,27 @@ func Getxattr(path string, attr string, dest []byte) (sz int, err error) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func InitModule(moduleImage []byte, params string) (err error) {
var _p0 unsafe.Pointer
if len(moduleImage) > 0 {
_p0 = unsafe.Pointer(&moduleImage[0])
} else {
_p0 = unsafe.Pointer(&_zero)
}
var _p1 *byte
_p1, err = BytePtrFromString(params)
if err != nil {
return
}
_, _, e1 := Syscall(SYS_INIT_MODULE, uintptr(_p0), uintptr(len(moduleImage)), uintptr(unsafe.Pointer(_p1)))
if e1 != 0 {
err = errnoErr(e1)
}
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func InotifyAddWatch(fd int, pathname string, mask uint32) (watchdesc int, err error) {
var _p0 *byte
_p0, err = BytePtrFromString(pathname)