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author | OpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com> | 2021-08-27 09:10:27 -0400 |
---|---|---|
committer | GitHub <noreply@github.com> | 2021-08-27 09:10:27 -0400 |
commit | 69cdf5d8035672e8bc7141cac0207e4b0f0e80cd (patch) | |
tree | bd2f9184eb3f7ca4aa7d3323b6fec350aae56209 /vendor/golang.org/x/sys/unix/ioctl_linux.go | |
parent | 6f61ef87afe6695ca6cbd6e3b818ef619b6d54da (diff) | |
parent | f5ce02b227f43feb7a02b09890facf198448621e (diff) | |
download | podman-69cdf5d8035672e8bc7141cac0207e4b0f0e80cd.tar.gz podman-69cdf5d8035672e8bc7141cac0207e4b0f0e80cd.tar.bz2 podman-69cdf5d8035672e8bc7141cac0207e4b0f0e80cd.zip |
Merge pull request #11330 from containers/dependabot/go_modules/github.com/containers/image/v5-5.16.0
Bump github.com/containers/image/v5 from 5.15.2 to 5.16.0
Diffstat (limited to 'vendor/golang.org/x/sys/unix/ioctl_linux.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/ioctl_linux.go | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/vendor/golang.org/x/sys/unix/ioctl_linux.go b/vendor/golang.org/x/sys/unix/ioctl_linux.go index 48773f730..1dadead21 100644 --- a/vendor/golang.org/x/sys/unix/ioctl_linux.go +++ b/vendor/golang.org/x/sys/unix/ioctl_linux.go @@ -5,7 +5,6 @@ package unix import ( - "runtime" "unsafe" ) @@ -22,56 +21,42 @@ func IoctlRetInt(fd int, req uint) (int, error) { func IoctlGetUint32(fd int, req uint) (uint32, error) { var value uint32 - err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) + err := ioctlPtr(fd, req, unsafe.Pointer(&value)) return value, err } func IoctlGetRTCTime(fd int) (*RTCTime, error) { var value RTCTime - err := ioctl(fd, RTC_RD_TIME, uintptr(unsafe.Pointer(&value))) + err := ioctlPtr(fd, RTC_RD_TIME, unsafe.Pointer(&value)) return &value, err } func IoctlSetRTCTime(fd int, value *RTCTime) error { - err := ioctl(fd, RTC_SET_TIME, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err + return ioctlPtr(fd, RTC_SET_TIME, unsafe.Pointer(value)) } func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) { var value RTCWkAlrm - err := ioctl(fd, RTC_WKALM_RD, uintptr(unsafe.Pointer(&value))) + err := ioctlPtr(fd, RTC_WKALM_RD, unsafe.Pointer(&value)) return &value, err } func IoctlSetRTCWkAlrm(fd int, value *RTCWkAlrm) error { - err := ioctl(fd, RTC_WKALM_SET, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err -} - -type ifreqEthtool struct { - name [IFNAMSIZ]byte - data unsafe.Pointer + return ioctlPtr(fd, RTC_WKALM_SET, unsafe.Pointer(value)) } // IoctlGetEthtoolDrvinfo fetches ethtool driver information for the network // device specified by ifname. func IoctlGetEthtoolDrvinfo(fd int, ifname string) (*EthtoolDrvinfo, error) { - // Leave room for terminating NULL byte. - if len(ifname) >= IFNAMSIZ { - return nil, EINVAL + ifr, err := NewIfreq(ifname) + if err != nil { + return nil, err } - value := EthtoolDrvinfo{ - Cmd: ETHTOOL_GDRVINFO, - } - ifreq := ifreqEthtool{ - data: unsafe.Pointer(&value), - } - copy(ifreq.name[:], ifname) - err := ioctl(fd, SIOCETHTOOL, uintptr(unsafe.Pointer(&ifreq))) - runtime.KeepAlive(ifreq) + value := EthtoolDrvinfo{Cmd: ETHTOOL_GDRVINFO} + ifrd := ifr.withData(unsafe.Pointer(&value)) + + err = ioctlIfreqData(fd, SIOCETHTOOL, &ifrd) return &value, err } @@ -80,7 +65,7 @@ func IoctlGetEthtoolDrvinfo(fd int, ifname string) (*EthtoolDrvinfo, error) { // 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))) + err := ioctlPtr(fd, WDIOC_GETSUPPORT, unsafe.Pointer(&value)) return &value, err } @@ -88,6 +73,7 @@ func IoctlGetWatchdogInfo(fd int) (*WatchdogInfo, error) { // more information, see: // https://www.kernel.org/doc/html/latest/watchdog/watchdog-api.html. func IoctlWatchdogKeepalive(fd int) error { + // arg is ignored and not a pointer, so ioctl is fine instead of ioctlPtr. return ioctl(fd, WDIOC_KEEPALIVE, 0) } @@ -95,9 +81,7 @@ func IoctlWatchdogKeepalive(fd int) error { // range of data conveyed in value to the file associated with the file // descriptor destFd. See the ioctl_ficlonerange(2) man page for details. func IoctlFileCloneRange(destFd int, value *FileCloneRange) error { - err := ioctl(destFd, FICLONERANGE, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err + return ioctlPtr(destFd, FICLONERANGE, unsafe.Pointer(value)) } // IoctlFileClone performs an FICLONE ioctl operation to clone the entire file @@ -148,7 +132,7 @@ func IoctlFileDedupeRange(srcFd int, value *FileDedupeRange) error { rawinfo.Reserved = value.Info[i].Reserved } - err := ioctl(srcFd, FIDEDUPERANGE, uintptr(unsafe.Pointer(&buf[0]))) + err := ioctlPtr(srcFd, FIDEDUPERANGE, unsafe.Pointer(&buf[0])) // Output for i := range value.Info { @@ -166,31 +150,47 @@ func IoctlFileDedupeRange(srcFd int, value *FileDedupeRange) error { } func IoctlHIDGetDesc(fd int, value *HIDRawReportDescriptor) error { - err := ioctl(fd, HIDIOCGRDESC, uintptr(unsafe.Pointer(value))) - runtime.KeepAlive(value) - return err + return ioctlPtr(fd, HIDIOCGRDESC, unsafe.Pointer(value)) } func IoctlHIDGetRawInfo(fd int) (*HIDRawDevInfo, error) { var value HIDRawDevInfo - err := ioctl(fd, HIDIOCGRAWINFO, uintptr(unsafe.Pointer(&value))) + err := ioctlPtr(fd, HIDIOCGRAWINFO, unsafe.Pointer(&value)) return &value, err } func IoctlHIDGetRawName(fd int) (string, error) { var value [_HIDIOCGRAWNAME_LEN]byte - err := ioctl(fd, _HIDIOCGRAWNAME, uintptr(unsafe.Pointer(&value[0]))) + err := ioctlPtr(fd, _HIDIOCGRAWNAME, unsafe.Pointer(&value[0])) return ByteSliceToString(value[:]), err } func IoctlHIDGetRawPhys(fd int) (string, error) { var value [_HIDIOCGRAWPHYS_LEN]byte - err := ioctl(fd, _HIDIOCGRAWPHYS, uintptr(unsafe.Pointer(&value[0]))) + err := ioctlPtr(fd, _HIDIOCGRAWPHYS, unsafe.Pointer(&value[0])) return ByteSliceToString(value[:]), err } func IoctlHIDGetRawUniq(fd int) (string, error) { var value [_HIDIOCGRAWUNIQ_LEN]byte - err := ioctl(fd, _HIDIOCGRAWUNIQ, uintptr(unsafe.Pointer(&value[0]))) + err := ioctlPtr(fd, _HIDIOCGRAWUNIQ, unsafe.Pointer(&value[0])) return ByteSliceToString(value[:]), err } + +// IoctlIfreq performs an ioctl using an Ifreq structure for input and/or +// output. See the netdevice(7) man page for details. +func IoctlIfreq(fd int, req uint, value *Ifreq) error { + // It is possible we will add more fields to *Ifreq itself later to prevent + // misuse, so pass the raw *ifreq directly. + return ioctlPtr(fd, req, unsafe.Pointer(&value.raw)) +} + +// TODO(mdlayher): export if and when IfreqData is exported. + +// ioctlIfreqData performs an ioctl using an ifreqData structure for input +// and/or output. See the netdevice(7) man page for details. +func ioctlIfreqData(fd int, req uint, value *ifreqData) error { + // The memory layout of IfreqData (type-safe) and ifreq (not type-safe) are + // identical so pass *IfreqData directly. + return ioctlPtr(fd, req, unsafe.Pointer(value)) +} |