diff --git a/fixtures.ttar b/fixtures.ttar index 5e7eeef4a..2149ff1de 100644 --- a/fixtures.ttar +++ b/fixtures.ttar @@ -3477,6 +3477,122 @@ Mode: 664 Directory: fixtures/sys/class Mode: 775 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Directory: fixtures/sys/class/dmi +Mode: 775 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Directory: fixtures/sys/class/dmi/id +Mode: 775 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/bios_date +Lines: 1 +04/12/2021 +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/bios_release +Lines: 1 +2.2 +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/bios_vendor +Lines: 1 +Dell Inc. +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/bios_version +Lines: 1 +2.2.4 +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/board_name +Lines: 1 +07PXPY +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/board_serial +Lines: 1 +.7N62AI2.GRTCL6944100GP. +Mode: 400 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/board_vendor +Lines: 1 +Dell Inc. +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/board_version +Lines: 1 +A01 +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/chassis_asset_tag +Lines: 1 + +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/chassis_serial +Lines: 1 +7N62AI2 +Mode: 400 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/chassis_type +Lines: 1 +23 +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/chassis_vendor +Lines: 1 +Dell Inc. +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/chassis_version +Lines: 1 + +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/modalias +Lines: 1 +dmi:bvnDellInc.:bvr2.2.4:bd04/12/2021:br2.2:svnDellInc.:pnPowerEdgeR6515:pvr:rvnDellInc.:rn07PXPY:rvrA01:cvnDellInc.:ct23:cvr: +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/product_family +Lines: 1 +PowerEdge +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/product_name +Lines: 1 +PowerEdge R6515 +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/product_serial +Lines: 1 +7N62AI2 +Mode: 400 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/product_sku +Lines: 1 +SKU=NotProvided;ModelName=PowerEdge R6515 +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/product_uuid +Lines: 1 +83340ca8-cb49-4474-8c29-d2088ca84dd9 +Mode: 400 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/product_version +Lines: 1 + +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/sys_vendor +Lines: 1 +Dell Inc. +Mode: 444 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +Path: fixtures/sys/class/dmi/id/uevent +Lines: 1 +MODALIAS=dmi:bvnDellInc.:bvr2.2.4:bd04/12/2021:br2.2:svnDellInc.:pnPowerEdgeR6515:pvr:rvnDellInc.:rn07PXPY:rvrA01:cvnDellInc.:ct23:cvr: +Mode: 644 +# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Directory: fixtures/sys/class/drm Mode: 755 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/sysfs/class_dmi.go b/sysfs/class_dmi.go new file mode 100644 index 000000000..f263c8f50 --- /dev/null +++ b/sysfs/class_dmi.go @@ -0,0 +1,132 @@ +// Copyright 2021 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build linux + +package sysfs + +import ( + "fmt" + "io/ioutil" + "os" + "path/filepath" + "strings" + + "github.com/prometheus/procfs/internal/util" +) + +const dmiClassPath = "class/dmi/id" + +// DMIClass contains info from files in /sys/class/dmi/id. +type DMIClass struct { + BiosDate *string // /sys/class/dmi/id/bios_date + BiosRelease *string // /sys/class/dmi/id/bios_release + BiosVendor *string // /sys/class/dmi/id/bios_vendor + BiosVersion *string // /sys/class/dmi/id/bios_version + BoardAssetTag *string // /sys/class/dmi/id/board_asset_tag + BoardName *string // /sys/class/dmi/id/board_name + BoardSerial *string // /sys/class/dmi/id/board_serial + BoardVendor *string // /sys/class/dmi/id/board_vendor + BoardVersion *string // /sys/class/dmi/id/board_version + ChassisAssetTag *string // /sys/class/dmi/id/chassis_asset_tag + ChassisSerial *string // /sys/class/dmi/id/chassis_serial + ChassisType *string // /sys/class/dmi/id/chassis_type + ChassisVendor *string // /sys/class/dmi/id/chassis_vendor + ChassisVersion *string // /sys/class/dmi/id/chassis_version + ProductFamily *string // /sys/class/dmi/id/product_family + ProductName *string // /sys/class/dmi/id/product_name + ProductSerial *string // /sys/class/dmi/id/product_serial + ProductSKU *string // /sys/class/dmi/id/product_sku + ProductUUID *string // /sys/class/dmi/id/product_uuid + ProductVersion *string // /sys/class/dmi/id/product_version + SystemVendor *string // /sys/class/dmi/id/sys_vendor +} + +// DMIClass returns Desktop Management Interface (DMI) information read from /sys/class/dmi. +func (fs FS) DMIClass() (*DMIClass, error) { + path := fs.sys.Path(dmiClassPath) + + files, err := ioutil.ReadDir(path) + if err != nil { + return nil, fmt.Errorf("failed to read directory %q: %w", path, err) + } + + var dmi DMIClass + for _, f := range files { + if f.IsDir() { + continue + } + + name := f.Name() + if name == "modalias" || name == "uevent" { + continue + } + + filename := filepath.Join(path, name) + value, err := util.SysReadFile(filename) + if err != nil { + if os.IsPermission(err) && (strings.Contains(name, "serial") || name == "product_uuid") { + // Only root is allowed to read the serial files! + continue + } + return nil, fmt.Errorf("failed to read file %q: %w", filename, err) + } + + switch name { + case "bios_date": + dmi.BiosDate = &value + case "bios_release": + dmi.BiosRelease = &value + case "bios_vendor": + dmi.BiosVendor = &value + case "bios_version": + dmi.BiosVersion = &value + case "board_asset_tag": + dmi.BoardAssetTag = &value + case "board_name": + dmi.BoardName = &value + case "board_serial": + dmi.BoardSerial = &value + case "board_vendor": + dmi.BoardVendor = &value + case "board_version": + dmi.BoardVersion = &value + case "chassis_asset_tag": + dmi.ChassisAssetTag = &value + case "chassis_serial": + dmi.ChassisSerial = &value + case "chassis_type": + dmi.ChassisType = &value + case "chassis_vendor": + dmi.ChassisVendor = &value + case "chassis_version": + dmi.ChassisVersion = &value + case "product_family": + dmi.ProductFamily = &value + case "product_name": + dmi.ProductName = &value + case "product_serial": + dmi.ProductSerial = &value + case "product_sku": + dmi.ProductSKU = &value + case "product_uuid": + dmi.ProductUUID = &value + case "product_version": + dmi.ProductVersion = &value + case "sys_vendor": + dmi.SystemVendor = &value + } + } + + return &dmi, nil +} diff --git a/sysfs/class_dmi_test.go b/sysfs/class_dmi_test.go new file mode 100644 index 000000000..9e3d1187b --- /dev/null +++ b/sysfs/class_dmi_test.go @@ -0,0 +1,80 @@ +// Copyright 2021 The Prometheus Authors +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build linux + +package sysfs + +import ( + "testing" + + "github.com/google/go-cmp/cmp" +) + +func TestDMIClass(t *testing.T) { + fs, err := NewFS(sysTestFixtures) + if err != nil { + t.Fatal(err) + } + + got, err := fs.DMIClass() + if err != nil { + t.Fatal(err) + } + + empty := "" + biosDate := "04/12/2021" + biosRelease := "2.2" + biosVendor := "Dell Inc." + biosVersion := "2.2.4" + boardName := "07PXPY" + boardSerial := ".7N62AI2.GRTCL6944100GP." + boardVendor := "Dell Inc." + boardVersion := "A01" + chassisSerial := "7N62AI2" + chassisType := "23" + chassisVendor := "Dell Inc." + productFamily := "PowerEdge" + productName := "PowerEdge R6515" + productSerial := "7N62AI2" + productSKU := "SKU=NotProvided;ModelName=PowerEdge R6515" + productUUID := "83340ca8-cb49-4474-8c29-d2088ca84dd9" + systemVendor := "Dell Inc." + + want := &DMIClass{ + BiosDate: &biosDate, + BiosRelease: &biosRelease, + BiosVendor: &biosVendor, + BiosVersion: &biosVersion, + BoardName: &boardName, + BoardSerial: &boardSerial, + BoardVendor: &boardVendor, + BoardVersion: &boardVersion, + ChassisAssetTag: &empty, + ChassisSerial: &chassisSerial, + ChassisType: &chassisType, + ChassisVendor: &chassisVendor, + ChassisVersion: &empty, + ProductFamily: &productFamily, + ProductName: &productName, + ProductSerial: &productSerial, + ProductSKU: &productSKU, + ProductUUID: &productUUID, + ProductVersion: &empty, + SystemVendor: &systemVendor, + } + + if diff := cmp.Diff(want, got); diff != "" { + t.Fatalf("unexpected DMI class (-want +got):\n%s", diff) + } +}