unix: add EthtoolDrvinfo and IoctlGetEthtoolDrvinfo on linux
Add type EthtoolDrvinfo and the type-safe IoctlGetEthtoolDrvinfo ioctl
wrapper func to retrieve it.
Change-Id: Ia514df89175939d9b0c2c4ddace621882e86b21a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/308989
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Matt Layher <mdlayher@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
diff --git a/unix/linux/types.go b/unix/linux/types.go
index 7efe890..17fbb72 100644
--- a/unix/linux/types.go
+++ b/unix/linux/types.go
@@ -3645,6 +3645,8 @@
ETHTOOL_A_TUNNEL_INFO_MAX = C.ETHTOOL_A_TUNNEL_INFO_MAX
)
+type EthtoolDrvinfo C.struct_ethtool_drvinfo
+
type (
HIDRawReportDescriptor C.struct_hidraw_report_descriptor
HIDRawDevInfo C.struct_hidraw_devinfo
diff --git a/unix/mkpost.go b/unix/mkpost.go
index c6b8951..f1a92dd 100644
--- a/unix/mkpost.go
+++ b/unix/mkpost.go
@@ -95,6 +95,15 @@
b = bytes.Replace(b, s, newNames, 1)
}
+ // Convert []int8 to []byte in EthtoolDrvinfo
+ convertEthtoolDrvinfoNames := regexp.MustCompile(`(Driver|Version|Fw_version|Bus_info|Erom_version|Reserved2)(\s+)\[(\d+)\]u?int8`)
+ ethtoolDrvinfoTypes := regexp.MustCompile(`type EthtoolDrvinfo struct {[^}]*}`)
+ ethtoolDrvinfoStructs := ethtoolDrvinfoTypes.FindAll(b, -1)
+ for _, s := range ethtoolDrvinfoStructs {
+ newNames := convertEthtoolDrvinfoNames.ReplaceAll(s, []byte("$1$2[$3]byte"))
+ b = bytes.Replace(b, s, newNames, 1)
+ }
+
// Convert []int8 to []byte in ctl_info ioctl interface
convertCtlInfoName := regexp.MustCompile(`(Name)(\s+)\[(\d+)\]int8`)
ctlInfoType := regexp.MustCompile(`type CtlInfo struct {[^}]*}`)
diff --git a/unix/syscall_linux.go b/unix/syscall_linux.go
index fe37eaf..c61c963 100644
--- a/unix/syscall_linux.go
+++ b/unix/syscall_linux.go
@@ -106,6 +106,31 @@
return &value, err
}
+type ifreqEthtool struct {
+ name [IFNAMSIZ]byte
+ data unsafe.Pointer
+}
+
+// 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
+ }
+
+ 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)
+ 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.
diff --git a/unix/ztypes_linux.go b/unix/ztypes_linux.go
index c769e73..3bfc6f7 100644
--- a/unix/ztypes_linux.go
+++ b/unix/ztypes_linux.go
@@ -3698,6 +3698,21 @@
ETHTOOL_A_TUNNEL_INFO_MAX = 0x2
)
+type EthtoolDrvinfo struct {
+ Cmd uint32
+ Driver [32]byte
+ Version [32]byte
+ Fw_version [32]byte
+ Bus_info [32]byte
+ Erom_version [32]byte
+ Reserved2 [12]byte
+ N_priv_flags uint32
+ N_stats uint32
+ Testinfo_len uint32
+ Eedump_len uint32
+ Regdump_len uint32
+}
+
type (
HIDRawReportDescriptor struct {
Size uint32
