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unix: add IoctlLoopConfigure on linux

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LOOP_CONFIGURE ioctl is used to setup and configure all loop device
parameters in a single step.
Add to the unix package a new function that exposes LOOP_CONFIGURE.

Fixes golang/go#63962

Change-Id: Ia169d268b52b1384febc6bff9c707b721ab2bb24
GitHub-Last-Rev: f9cc4c94cb654afd596df6e28a0d0a1bf60d15eb
GitHub-Pull-Request: golang/sys#181
Reviewed-on: https://go-review.googlesource.com/c/sys/+/540075
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Alexandru Matei
2023-11-18 01:08:36 +00:00
committed by Gopher Robot
parent 11eadc05e9
commit 13b15b780d
5 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
unix/ioctl_linux.go
+5
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@@ -231,3 +231,8 @@ func IoctlLoopGetStatus64(fd int) (*LoopInfo64, error) {
func IoctlLoopSetStatus64(fd int, value *LoopInfo64) error {
return ioctlPtr(fd, LOOP_SET_STATUS64, unsafe.Pointer(value))
}
// IoctlLoopConfigure configures all loop device parameters in a single step
func IoctlLoopConfigure(fd int, value *LoopConfig) error {
return ioctlPtr(fd, LOOP_CONFIGURE, unsafe.Pointer(value))
}
unix/linux/types.go
+1
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@@ -3027,6 +3027,7 @@ const (
type LoopInfo C.struct_loop_info
type LoopInfo64 C.struct_loop_info64
type LoopConfig C.struct_loop_config
// AF_TIPC
unix/mkerrors.sh
+1
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@@ -519,6 +519,7 @@ ccflags="$@"
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
$2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
$2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
$2 == "LOOP_CONFIGURE" ||
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|MCAST|EVFILT|NOTE|SHUT|PROT|MAP|MREMAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR|LOCAL|TCPOPT|UDP)_/ ||
$2 ~ /^NFC_(GENL|PROTO|COMM|RF|SE|DIRECTION|LLCP|SOCKPROTO)_/ ||
$2 ~ /^NFC_.*_(MAX)?SIZE$/ ||
unix/zerrors_linux.go
+1
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@@ -1801,6 +1801,7 @@ const (
LOCK_SH = 0x1
LOCK_UN = 0x8
LOOP_CLR_FD = 0x4c01
LOOP_CONFIGURE = 0x4c0a
LOOP_CTL_ADD = 0x4c80
LOOP_CTL_GET_FREE = 0x4c82
LOOP_CTL_REMOVE = 0x4c81
unix/ztypes_linux.go
+6
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@@ -3005,6 +3005,12 @@ type LoopInfo64 struct {
Encrypt_key [32]uint8
Init [2]uint64
}
type LoopConfig struct {
Fd uint32
Size uint32
Info LoopInfo64
_ [8]uint64
}
type TIPCSocketAddr struct {
Ref uint32