unix: add Linux watchdog structures and missing constants
This CL also adds the type-safe wrappers IoctlGetWatchdogInfo
and IoctlWatchdogKeepalive around the raw ioctl interface.
Change-Id: I98e3970807b28832e49524700b17b6b6f75d91ed
Reviewed-on: https://go-review.googlesource.com/c/sys/+/259497
Run-TryBot: Matt Layher <mdlayher@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Terin Stock <terinjokes@gmail.com>
Reviewed-by: Florian Lehner <lehner.florian86@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
diff --git a/unix/linux/types.go b/unix/linux/types.go
index 1888a49..9778b0a 100644
--- a/unix/linux/types.go
+++ b/unix/linux/types.go
@@ -120,6 +120,7 @@
#include <linux/stat.h>
#include <linux/taskstats.h>
#include <linux/tipc.h>
+#include <linux/watchdog.h>
#include <linux/vm_sockets.h>
// abi/abi.h generated by mkall.go.
@@ -2510,3 +2511,7 @@
CAN_RAW_FD_FRAMES = C.CAN_RAW_FD_FRAMES
CAN_RAW_JOIN_FILTERS = C.CAN_RAW_JOIN_FILTERS
)
+
+// Watchdog API
+
+type WatchdogInfo C.struct_watchdog_info
diff --git a/unix/mkerrors.sh b/unix/mkerrors.sh
index 1bef714..9bd8cd8 100755
--- a/unix/mkerrors.sh
+++ b/unix/mkerrors.sh
@@ -546,7 +546,7 @@
$2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
$2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
$2 ~ /^FSOPT_/ ||
- $2 ~ /^WDIOC_/ ||
+ $2 ~ /^WDIO[CFS]_/ ||
$2 ~ /^NFN/ ||
$2 ~ /^XDP_/ ||
$2 ~ /^RWF_/ ||
diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go
index 94dafa4..122e7eb 100644
--- a/unix/syscall_linux.go
+++ b/unix/syscall_linux.go
@@ -106,6 +106,15 @@
return &value, err
}
+// IoctlGetWatchdogInfo fetches information about a watchdog device from the
+// Linux watchdog API. For more information, see:
+// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
+func IoctlGetWatchdogInfo(fd int) (*WatchdogInfo, error) {
+ var value WatchdogInfo
+ err := ioctl(fd, WDIOC_GETSUPPORT, uintptr(unsafe.Pointer(&value)))
+ return &value, err
+}
+
func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) {
var value RTCWkAlrm
err := ioctl(fd, RTC_WKALM_RD, uintptr(unsafe.Pointer(&value)))
@@ -137,6 +146,13 @@
return err
}
+// IoctlWatchdogKeepalive issues a keepalive ioctl to a watchdog device. For
+// more information, see:
+// https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html.
+func IoctlWatchdogKeepalive(fd int) error {
+ return ioctl(fd, WDIOC_KEEPALIVE, 0)
+}
+
//sys Linkat(olddirfd int, oldpath string, newdirfd int, newpath string, flags int) (err error)
func Link(oldpath string, newpath string) (err error) {
diff --git a/unix/zerrors_linux.go b/unix/zerrors_linux.go
index 79e032f..780d689 100644
--- a/unix/zerrors_linux.go
+++ b/unix/zerrors_linux.go
@@ -2357,6 +2357,23 @@
WCONTINUED = 0x8
WDIOC_SETPRETIMEOUT = 0xc0045708
WDIOC_SETTIMEOUT = 0xc0045706
+ WDIOF_ALARMONLY = 0x400
+ WDIOF_CARDRESET = 0x20
+ WDIOF_EXTERN1 = 0x4
+ WDIOF_EXTERN2 = 0x8
+ WDIOF_FANFAULT = 0x2
+ WDIOF_KEEPALIVEPING = 0x8000
+ WDIOF_MAGICCLOSE = 0x100
+ WDIOF_OVERHEAT = 0x1
+ WDIOF_POWEROVER = 0x40
+ WDIOF_POWERUNDER = 0x10
+ WDIOF_PRETIMEOUT = 0x200
+ WDIOF_SETTIMEOUT = 0x80
+ WDIOF_UNKNOWN = -0x1
+ WDIOS_DISABLECARD = 0x1
+ WDIOS_ENABLECARD = 0x2
+ WDIOS_TEMPPANIC = 0x4
+ WDIOS_UNKNOWN = -0x1
WEXITED = 0x4
WIN_ACKMEDIACHANGE = 0xdb
WIN_CHECKPOWERMODE1 = 0xe5
diff --git a/unix/ztypes_linux.go b/unix/ztypes_linux.go
index a92a501..2309ffc 100644
--- a/unix/ztypes_linux.go
+++ b/unix/ztypes_linux.go
@@ -2567,3 +2567,9 @@
CAN_RAW_FD_FRAMES = 0x5
CAN_RAW_JOIN_FILTERS = 0x6
)
+
+type WatchdogInfo struct {
+ Options uint32
+ Version uint32
+ Identity [32]uint8
+}
