sysfs

package
v0.12.9 Latest Latest
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 Go to latest Published: Dec 11, 2023 License: Apache-2.0 Imports: 13 Imported by: 0

Documentation

Overview

Package sysfs provides functions to retrieve system and kernel metrics from the pseudo-filesystem sys.

Index

Constants

View Source 
const (
	VulnerabilityStateNotAffected = iota
	VulnerabilityStateVulnerable
	VulnerabilityStateMitigation
	VulnerabilityStateUnknown
)
View Source 
const DefaultMountPoint = fs.DefaultSysMountPoint

DefaultMountPoint is the common mount point of the sys filesystem.

Variables

View Source 
var (
	// VulnerabilityHumanEncoding allows mapping the vulnerability state (encoded as an int) onto a human friendly
	// string. It can be used by consumers of this library to expose to the user the state of the vulnerability.
	VulnerabilityHumanEncoding = map[int]string{
		VulnerabilityStateNotAffected: notAffected,
		VulnerabilityStateVulnerable:  vulnerable,
		VulnerabilityStateMitigation:  mitigation,
		VulnerabilityStateUnknown:     unknown,
	}
)

Functions

func ParseNetClassAttribute 

func ParseNetClassAttribute(devicePath, attrName string, interfaceClass *NetClassIface) error

ParseNetClassAttribute parses a given file in /sys/class/net/<iface> and sets the value in a given NetClassIface object if the value was readable. It returns an error if the file cannot be read and the error is fatal.

Types

type CPU 

type CPU string

CPU represents a path to a CPU located in `/sys/devices/system/cpu/cpu[0-9]*`.

func (CPU) Number 

func (c CPU) Number() string

Number returns the ID number of the given CPU.

func (CPU) ThermalThrottle 

func (c CPU) ThermalThrottle() (*CPUThermalThrottle, error)

ThermalThrottle gets the cpu throttle count information for a single CPU from `/sys/devices/system/cpu/cpuN/thermal_throttle`.

func (CPU) Topology 

func (c CPU) Topology() (*CPUTopology, error)

Topology gets the topology information for a single CPU from `/sys/devices/system/cpu/cpuN/topology`.

type CPUThermalThrottle 

type CPUThermalThrottle struct {
	CoreThrottleCount    uint64
	PackageThrottleCount uint64
}

CPUThermalThrottle contains data from `/sys/devices/system/cpu/cpu[0-9]*/thermal_throttle`.

type CPUTopology 

type CPUTopology struct {
	CoreID             string
	CoreSiblingsList   string
	PhysicalPackageID  string
	ThreadSiblingsList string
}

CPUTopology contains data located in `/sys/devices/system/cpu/cpu[0-9]*/topology`.

type ClassCoolingDeviceStats 

type ClassCoolingDeviceStats struct {
	Name     string // The name of the cooling device.
	Type     string // Type of the cooling device(processor/fan/...)
	MaxState int64  // Maximum cooling state of the cooling device
	CurState int64  // Current cooling state of the cooling device
}

ClassCoolingDeviceStats contains info from files in /sys/class/thermal/cooling_device[0-9]* for a single device. https://www.kernel.org/doc/Documentation/thermal/sysfs-api.txt

type ClassDRMCardAMDGPUStats 

type ClassDRMCardAMDGPUStats struct {
	Name                          string // The card name.
	GPUBusyPercent                uint64 // How busy the GPU is as a percentage.
	MemoryGTTSize                 uint64 // The size of the graphics translation table (GTT) block in bytes.
	MemoryGTTUsed                 uint64 // The used amount of the graphics translation table (GTT) block in bytes.
	MemoryVisibleVRAMSize         uint64 // The size of visible VRAM in bytes.
	MemoryVisibleVRAMUsed         uint64 // The used amount of visible VRAM in bytes.
	MemoryVRAMSize                uint64 // The size of VRAM in bytes.
	MemoryVRAMUsed                uint64 // The used amount of VRAM in bytes.
	MemoryVRAMVendor              string // The VRAM vendor name.
	PowerDPMForcePerformanceLevel string // The current power performance level.
	UniqueID                      string // The unique ID of the GPU that will persist from machine to machine.
}

ClassDRMCardAMDGPUStats contains info from files in /sys/class/drm/card<card>/device for a single amdgpu card. Not all cards expose all metrics. https://www.kernel.org/doc/html/latest/gpu/amdgpu.html

type ClassThermalZoneStats 

type ClassThermalZoneStats struct {
	Name    string  // The name of the zone from the directory structure.
	Type    string  // The type of thermal zone.
	Temp    int64   // Temperature in millidegree Celsius.
	Policy  string  // One of the various thermal governors used for a particular zone.
	Mode    *bool   // Optional: One of the predefined values in [enabled, disabled].
	Passive *uint64 // Optional: millidegrees Celsius. (0 for disabled, > 1000 for enabled+value)
}

ClassThermalZoneStats contains info from files in /sys/class/thermal/thermal_zone<zone> for a single <zone>. https://www.kernel.org/doc/Documentation/thermal/sysfs-api.txt

type ClockSource 

type ClockSource struct {
	Name      string
	Available []string
	Current   string
}

ClockSource contains metrics related to the clock source.

type DMIClass 

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 contains info from files in /sys/class/dmi/id.

type FS 

type FS struct {
	// contains filtered or unexported fields
}

FS represents the pseudo-filesystem sys, which provides an interface to kernel data structures.

func NewDefaultFS 

func NewDefaultFS() (FS, error)

NewDefaultFS returns a new FS mounted under the default mountPoint. It will error if the mount point can't be read.

func NewFS 

func NewFS(mountPoint string) (FS, error)

NewFS returns a new FS mounted under the given mountPoint. It will error if the mount point can't be read.

func (FS) CPUVulnerabilities 

func (fs FS) CPUVulnerabilities() (map[string]*Vulnerability, error)

CPUVulnerabilities retrieves a map of vulnerability names to their mitigations.

func (FS) CPUs 

func (fs FS) CPUs() ([]CPU, error)

CPUs returns a slice of all CPUs in `/sys/devices/system/cpu`.

func (FS) ClassCoolingDeviceStats 

func (fs FS) ClassCoolingDeviceStats() ([]ClassCoolingDeviceStats, error)

func (FS) ClassDRMCardAMDGPUStats 

func (fs FS) ClassDRMCardAMDGPUStats() ([]ClassDRMCardAMDGPUStats, error)

ClassDRMCardAMDGPUStats returns DRM card metrics for all amdgpu cards.

func (FS) ClassThermalZoneStats 

func (fs FS) ClassThermalZoneStats() ([]ClassThermalZoneStats, error)

ClassThermalZoneStats returns Thermal Zone metrics for all zones.

func (FS) ClockSources 

func (fs FS) ClockSources() ([]ClockSource, error)

ClockSources returns clocksource information including current and available clocksources read from '/sys/devices/system/clocksource'.

func (FS) DMIClass 

func (fs FS) DMIClass() (*DMIClass, error)

DMIClass returns Desktop Management Interface (DMI) information read from /sys/class/dmi.

func (FS) FibreChannelClass 

func (fs FS) FibreChannelClass() (FibreChannelClass, error)

FibreChannelClass parses everything in /sys/class/fc_host.

func (FS) InfiniBandClass 

func (fs FS) InfiniBandClass() (InfiniBandClass, error)

InfiniBandClass returns info for all InfiniBand devices read from /sys/class/infiniband.

func (FS) IsolatedCPUs 

func (fs FS) IsolatedCPUs() ([]uint16, error)

func (FS) Mdraids 

func (fs FS) Mdraids() ([]Mdraid, error)

Mdraids gathers information and statistics about mdraid devices present. Based on upstream kernel documentation https://docs.kernel.org/admin-guide/md.html.

func (FS) NVMeClass 

func (fs FS) NVMeClass() (NVMeClass, error)

NVMeClass returns info for all NVMe devices read from /sys/class/nvme.

func (FS) NetClass 

func (fs FS) NetClass() (NetClass, error)

NetClass returns info for all net interfaces (iface) read from /sys/class/net/<iface>.

func (FS) NetClassByIface 

func (fs FS) NetClassByIface(devicePath string) (*NetClassIface, error)

NetClassByIface returns info for a single net interfaces (iface).

func (FS) NetClassDevices 

func (fs FS) NetClassDevices() ([]string, error)

NetClassDevices scans /sys/class/net for devices and returns them as a list of names.

func (FS) PowerSupplyClass 

func (fs FS) PowerSupplyClass() (PowerSupplyClass, error)

PowerSupplyClass returns info for all power supplies read from /sys/class/power_supply.

func (FS) SASDeviceClass 

func (fs FS) SASDeviceClass() (SASDeviceClass, error)

SASDeviceClass parses devices in /sys/class/sas_device.

func (FS) SASEndDeviceClass 

func (fs FS) SASEndDeviceClass() (SASDeviceClass, error)

SASEndDeviceClass parses devices in /sys/class/sas_end_device. This is a subset of sas_device, and excludes expanders.

func (FS) SASExpanderClass 

func (fs FS) SASExpanderClass() (SASDeviceClass, error)

SASExpanderClass parses devices in /sys/class/sas_expander. This is a subset of sas_device, but only includes expanders.

func (FS) SASHostClass 

func (fs FS) SASHostClass() (SASHostClass, error)

SASHostClass parses host[0-9]+ devices in /sys/class/sas_host. This generally only exists so that it can pull in SAS Port and SAS PHY entries.

The sas_host class doesn't collect any obvious statistics. Each sas_host contains a scsi_host, which seems to collect a couple minor stats (ioc_reset_count and reply_queue_count), but they're not worth collecting at this time. There are more useful SAS stats in the sas_phy class.

func (FS) SASPhyClass 

func (fs FS) SASPhyClass() (SASPhyClass, error)

SASPhyClass parses entries in /sys/class/sas_phy.

func (FS) SASPortClass 

func (fs FS) SASPortClass() (SASPortClass, error)

SASPortClass parses ports in /sys/class/sas_port.

A SAS port in this context is a collection of SAS PHYs operating together. For example, it's common to have 8-lane SAS cards that have 2 external connectors, each of which carries 4 SAS lanes over a SFF-8088 or SFF-8644 connector. While it's possible to split those 4 lanes into 4 different cables wired directly into individual drives, it's more common to connect them all to a SAS expander. This gives you 4x the bandwidth between the expander and the SAS host, and is represented by a sas-port object which contains 4 sas-phy objects.

func (FS) SCSITapeClass 

func (fs FS) SCSITapeClass() (SCSITapeClass, error)

SCSITapeClass parses st[0-9]+ devices in /sys/class/scsi_tape.

func (FS) SystemCpufreq 

func (fs FS) SystemCpufreq() ([]SystemCPUCpufreqStats, error)

SystemCpufreq returns CPU frequency metrics for all CPUs.

func (FS) VMStatNUMA 

func (fs FS) VMStatNUMA() (map[int]VMStat, error)

type FibreChannelClass 

type FibreChannelClass map[string]FibreChannelHost

type FibreChannelCounters 

type FibreChannelCounters struct {
	DumpedFrames          uint64 // /sys/class/fc_host/<Name>/statistics/dumped_frames
	ErrorFrames           uint64 // /sys/class/fc_host/<Name>/statistics/error_frames
	InvalidCRCCount       uint64 // /sys/class/fc_host/<Name>/statistics/invalid_crc_count
	RXFrames              uint64 // /sys/class/fc_host/<Name>/statistics/rx_frames
	RXWords               uint64 // /sys/class/fc_host/<Name>/statistics/rx_words
	TXFrames              uint64 // /sys/class/fc_host/<Name>/statistics/tx_frames
	TXWords               uint64 // /sys/class/fc_host/<Name>/statistics/tx_words
	SecondsSinceLastReset uint64 // /sys/class/fc_host/<Name>/statistics/seconds_since_last_reset
	InvalidTXWordCount    uint64 // /sys/class/fc_host/<Name>/statistics/invalid_tx_word_count
	LinkFailureCount      uint64 // /sys/class/fc_host/<Name>/statistics/link_failure_count
	LossOfSyncCount       uint64 // /sys/class/fc_host/<Name>/statistics/loss_of_sync_count
	LossOfSignalCount     uint64 // /sys/class/fc_host/<Name>/statistics/loss_of_signal_count
	NosCount              uint64 // /sys/class/fc_host/<Name>/statistics/nos_count
	FCPPacketAborts       uint64 // / sys/class/fc_host/<Name>/statistics/fcp_packet_aborts
}

type FibreChannelHost 

type FibreChannelHost struct {
	Name             string               // /sys/class/fc_host/<Name>
	Speed            string               // /sys/class/fc_host/<Name>/speed
	PortState        string               // /sys/class/fc_host/<Name>/port_state
	PortType         string               // /sys/class/fc_host/<Name>/port_type
	SymbolicName     string               // /sys/class/fc_host/<Name>/symbolic_name
	NodeName         string               // /sys/class/fc_host/<Name>/node_name
	PortID           string               // /sys/class/fc_host/<Name>/port_id
	PortName         string               // /sys/class/fc_host/<Name>/port_name
	FabricName       string               // /sys/class/fc_host/<Name>/fabric_name
	DevLossTMO       string               // /sys/class/fc_host/<Name>/dev_loss_tmo
	SupportedClasses string               // /sys/class/fc_host/<Name>/supported_classes
	SupportedSpeeds  string               // /sys/class/fc_host/<Name>/supported_speeds
	Counters         FibreChannelCounters // /sys/class/fc_host/<Name>/statistics/*
}

type InfiniBandClass 

type InfiniBandClass map[string]InfiniBandDevice

InfiniBandClass is a collection of every InfiniBand device in /sys/class/infiniband.

The map keys are the names of the InfiniBand devices.

type InfiniBandCounters 

type InfiniBandCounters struct {
	LegacyPortMulticastRcvPackets  *uint64 // counters_ext/port_multicast_rcv_packets
	LegacyPortMulticastXmitPackets *uint64 // counters_ext/port_multicast_xmit_packets
	LegacyPortRcvData64            *uint64 // counters_ext/port_rcv_data_64
	LegacyPortRcvPackets64         *uint64 // counters_ext/port_rcv_packets_64
	LegacyPortUnicastRcvPackets    *uint64 // counters_ext/port_unicast_rcv_packets
	LegacyPortUnicastXmitPackets   *uint64 // counters_ext/port_unicast_xmit_packets
	LegacyPortXmitData64           *uint64 // counters_ext/port_xmit_data_64
	LegacyPortXmitPackets64        *uint64 // counters_ext/port_xmit_packets_64

	ExcessiveBufferOverrunErrors *uint64 // counters/excessive_buffer_overrun_errors
	LinkDowned                   *uint64 // counters/link_downed
	LinkErrorRecovery            *uint64 // counters/link_error_recovery
	LocalLinkIntegrityErrors     *uint64 // counters/local_link_integrity_errors
	MulticastRcvPackets          *uint64 // counters/multicast_rcv_packets
	MulticastXmitPackets         *uint64 // counters/multicast_xmit_packets
	PortRcvConstraintErrors      *uint64 // counters/port_rcv_constraint_errors
	PortRcvData                  *uint64 // counters/port_rcv_data
	PortRcvDiscards              *uint64 // counters/port_rcv_discards
	PortRcvErrors                *uint64 // counters/port_rcv_errors
	PortRcvPackets               *uint64 // counters/port_rcv_packets
	PortRcvRemotePhysicalErrors  *uint64 // counters/port_rcv_remote_physical_errors
	PortRcvSwitchRelayErrors     *uint64 // counters/port_rcv_switch_relay_errors
	PortXmitConstraintErrors     *uint64 // counters/port_xmit_constraint_errors
	PortXmitData                 *uint64 // counters/port_xmit_data
	PortXmitDiscards             *uint64 // counters/port_xmit_discards
	PortXmitPackets              *uint64 // counters/port_xmit_packets
	PortXmitWait                 *uint64 // counters/port_xmit_wait
	SymbolError                  *uint64 // counters/symbol_error
	UnicastRcvPackets            *uint64 // counters/unicast_rcv_packets
	UnicastXmitPackets           *uint64 // counters/unicast_xmit_packets
	VL15Dropped                  *uint64 // counters/VL15_dropped
}

InfiniBandCounters contains counter values from files in /sys/class/infiniband/<Name>/ports/<Port>/counters or /sys/class/infiniband/<Name>/ports/<Port>/counters_ext for a single port of one InfiniBand device.

type InfiniBandDevice 

type InfiniBandDevice struct {
	Name            string
	BoardID         string // /sys/class/infiniband/<Name>/board_id
	FirmwareVersion string // /sys/class/infiniband/<Name>/fw_ver
	HCAType         string // /sys/class/infiniband/<Name>/hca_type
	Ports           map[uint]InfiniBandPort
}

InfiniBandDevice contains info from files in /sys/class/infiniband for a single InfiniBand device.

type InfiniBandHwCounters 

type InfiniBandHwCounters struct {
	DuplicateRequest        *uint64 // hw_counters/duplicate_request
	ImpliedNakSeqErr        *uint64 // hw_counters/implied_nak_seq_err
	Lifespan                *uint64 // hw_counters/lifespan
	LocalAckTimeoutErr      *uint64 // hw_counters/local_ack_timeout_err
	NpCnpSent               *uint64 // hw_counters/np_cnp_sent
	NpEcnMarkedRocePackets  *uint64 // hw_counters/np_ecn_marked_roce_packets
	OutOfBuffer             *uint64 // hw_counters/out_of_buffer
	OutOfSequence           *uint64 // hw_counters/out_of_sequence
	PacketSeqErr            *uint64 // hw_counters/packet_seq_err
	ReqCqeError             *uint64 // hw_counters/req_cqe_error
	ReqCqeFlushError        *uint64 // hw_counters/req_cqe_flush_error
	ReqRemoteAccessErrors   *uint64 // hw_counters/req_remote_access_errors
	ReqRemoteInvalidRequest *uint64 // hw_counters/req_remote_invalid_request
	RespCqeError            *uint64 // hw_counters/resp_cqe_error
	RespCqeFlushError       *uint64 // hw_counters/resp_cqe_flush_error
	RespLocalLengthError    *uint64 // hw_counters/resp_local_length_error
	RespRemoteAccessErrors  *uint64 // hw_counters/resp_remote_access_errors
	RnrNakRetryErr          *uint64 // hw_counters/rnr_nak_retry_err
	RoceAdpRetrans          *uint64 // hw_counters/roce_adp_retrans
	RoceAdpRetransTo        *uint64 // hw_counters/roce_adp_retrans_to
	RoceSlowRestart         *uint64 // hw_counters/roce_slow_restart
	RoceSlowRestartCnps     *uint64 // hw_counters/roce_slow_restart_cnps
	RoceSlowRestartTrans    *uint64 // hw_counters/roce_slow_restart_trans
	RpCnpHandled            *uint64 // hw_counters/rp_cnp_handled
	RpCnpIgnored            *uint64 // hw_counters/rp_cnp_ignored
	RxAtomicRequests        *uint64 // hw_counters/rx_atomic_requests
	RxDctConnect            *uint64 // hw_counters/rx_dct_connect
	RxIcrcEncapsulated      *uint64 // hw_counters/rx_icrc_encapsulated
	RxReadRequests          *uint64 // hw_counters/rx_read_requests
	RxWriteRequests         *uint64 // hw_counters/rx_write_requests
}

InfiniBandHwCounters contains counter value from files in /sys/class/infiniband/<Name>/ports/<Port>/hw_counters for a single port of one InfiniBand device.

type InfiniBandPort 

type InfiniBandPort struct {
	Name        string
	Port        uint
	State       string // String representation from /sys/class/infiniband/<Name>/ports/<Port>/state
	StateID     uint   // ID from /sys/class/infiniband/<Name>/ports/<Port>/state
	PhysState   string // String representation from /sys/class/infiniband/<Name>/ports/<Port>/phys_state
	PhysStateID uint   // String representation from /sys/class/infiniband/<Name>/ports/<Port>/phys_state
	Rate        uint64 // in bytes/second from /sys/class/infiniband/<Name>/ports/<Port>/rate
	Counters    InfiniBandCounters
	HwCounters  InfiniBandHwCounters
}

InfiniBandPort contains info from files in /sys/class/infiniband/<Name>/ports/<Port> for a single port of one InfiniBand device.

type Mdraid 

type Mdraid struct {
	Device          string            // Kernel device name of array.
	Level           string            // mdraid level.
	ArrayState      string            // State of the array.
	MetadataVersion string            // mdraid metadata version.
	Disks           uint64            // Number of devices in a fully functional array.
	Components      []MdraidComponent // mdraid component devices.
	UUID            string            // UUID of the array.

	// The following item is only valid for raid0, 4, 5, 6 and 10.
	ChunkSize uint64 // Chunk size

	// The following items are only valid for raid1, 4, 5, 6 and 10.
	DegradedDisks uint64  // Number of degraded disks in the array.
	SyncAction    string  // Current sync action.
	SyncCompleted float64 // Fraction (0-1) representing the completion status of current sync operation.
}

Mdraid holds info parsed from relevant files in the /sys/block/md*/md directory.

type MdraidComponent 

type MdraidComponent struct {
	Device string // Kernel device name.
	State  string // Current state of device.
}

type NVMeClass 

type NVMeClass map[string]NVMeDevice

NVMeClass is a collection of every NVMe device in /sys/class/nvme.

The map keys are the names of the NVMe devices.

type NVMeDevice 

type NVMeDevice struct {
	Name             string
	Serial           string // /sys/class/nvme/<Name>/serial
	Model            string // /sys/class/nvme/<Name>/model
	State            string // /sys/class/nvme/<Name>/state
	FirmwareRevision string // /sys/class/nvme/<Name>/firmware_rev
}

NVMeDevice contains info from files in /sys/class/nvme for a single NVMe device.

type NetClass 

type NetClass map[string]NetClassIface

NetClass is collection of info for every interface (iface) in /sys/class/net. The map keys are interface (iface) names.

type NetClassIface 

type NetClassIface struct {
	Name             string // Interface name
	AddrAssignType   *int64 // /sys/class/net/<iface>/addr_assign_type
	AddrLen          *int64 // /sys/class/net/<iface>/addr_len
	Address          string // /sys/class/net/<iface>/address
	Broadcast        string // /sys/class/net/<iface>/broadcast
	Carrier          *int64 // /sys/class/net/<iface>/carrier
	CarrierChanges   *int64 // /sys/class/net/<iface>/carrier_changes
	CarrierUpCount   *int64 // /sys/class/net/<iface>/carrier_up_count
	CarrierDownCount *int64 // /sys/class/net/<iface>/carrier_down_count
	DevID            *int64 // /sys/class/net/<iface>/dev_id
	Dormant          *int64 // /sys/class/net/<iface>/dormant
	Duplex           string // /sys/class/net/<iface>/duplex
	Flags            *int64 // /sys/class/net/<iface>/flags
	IfAlias          string // /sys/class/net/<iface>/ifalias
	IfIndex          *int64 // /sys/class/net/<iface>/ifindex
	IfLink           *int64 // /sys/class/net/<iface>/iflink
	LinkMode         *int64 // /sys/class/net/<iface>/link_mode
	MTU              *int64 // /sys/class/net/<iface>/mtu
	NameAssignType   *int64 // /sys/class/net/<iface>/name_assign_type
	NetDevGroup      *int64 // /sys/class/net/<iface>/netdev_group
	OperState        string // /sys/class/net/<iface>/operstate
	PhysPortID       string // /sys/class/net/<iface>/phys_port_id
	PhysPortName     string // /sys/class/net/<iface>/phys_port_name
	PhysSwitchID     string // /sys/class/net/<iface>/phys_switch_id
	Speed            *int64 // /sys/class/net/<iface>/speed
	TxQueueLen       *int64 // /sys/class/net/<iface>/tx_queue_len
	Type             *int64 // /sys/class/net/<iface>/type
}

NetClassIface contains info from files in /sys/class/net/<iface> for single interface (iface).

type PowerSupply 

type PowerSupply struct {
	Name                     string // Power Supply Name
	Authentic                *int64 // /sys/class/power_supply/<Name>/authentic
	Calibrate                *int64 // /sys/class/power_supply/<Name>/calibrate
	Capacity                 *int64 // /sys/class/power_supply/<Name>/capacity
	CapacityAlertMax         *int64 // /sys/class/power_supply/<Name>/capacity_alert_max
	CapacityAlertMin         *int64 // /sys/class/power_supply/<Name>/capacity_alert_min
	CapacityLevel            string // /sys/class/power_supply/<Name>/capacity_level
	ChargeAvg                *int64 // /sys/class/power_supply/<Name>/charge_avg
	ChargeControlLimit       *int64 // /sys/class/power_supply/<Name>/charge_control_limit
	ChargeControlLimitMax    *int64 // /sys/class/power_supply/<Name>/charge_control_limit_max
	ChargeCounter            *int64 // /sys/class/power_supply/<Name>/charge_counter
	ChargeEmpty              *int64 // /sys/class/power_supply/<Name>/charge_empty
	ChargeEmptyDesign        *int64 // /sys/class/power_supply/<Name>/charge_empty_design
	ChargeFull               *int64 // /sys/class/power_supply/<Name>/charge_full
	ChargeFullDesign         *int64 // /sys/class/power_supply/<Name>/charge_full_design
	ChargeNow                *int64 // /sys/class/power_supply/<Name>/charge_now
	ChargeTermCurrent        *int64 // /sys/class/power_supply/<Name>/charge_term_current
	ChargeType               string // /sys/class/power_supply/<Name>/charge_type
	ConstantChargeCurrent    *int64 // /sys/class/power_supply/<Name>/constant_charge_current
	ConstantChargeCurrentMax *int64 // /sys/class/power_supply/<Name>/constant_charge_current_max
	ConstantChargeVoltage    *int64 // /sys/class/power_supply/<Name>/constant_charge_voltage
	ConstantChargeVoltageMax *int64 // /sys/class/power_supply/<Name>/constant_charge_voltage_max
	CurrentAvg               *int64 // /sys/class/power_supply/<Name>/current_avg
	CurrentBoot              *int64 // /sys/class/power_supply/<Name>/current_boot
	CurrentMax               *int64 // /sys/class/power_supply/<Name>/current_max
	CurrentNow               *int64 // /sys/class/power_supply/<Name>/current_now
	CycleCount               *int64 // /sys/class/power_supply/<Name>/cycle_count
	EnergyAvg                *int64 // /sys/class/power_supply/<Name>/energy_avg
	EnergyEmpty              *int64 // /sys/class/power_supply/<Name>/energy_empty
	EnergyEmptyDesign        *int64 // /sys/class/power_supply/<Name>/energy_empty_design
	EnergyFull               *int64 // /sys/class/power_supply/<Name>/energy_full
	EnergyFullDesign         *int64 // /sys/class/power_supply/<Name>/energy_full_design
	EnergyNow                *int64 // /sys/class/power_supply/<Name>/energy_now
	Health                   string // /sys/class/power_supply/<Name>/health
	InputCurrentLimit        *int64 // /sys/class/power_supply/<Name>/input_current_limit
	Manufacturer             string // /sys/class/power_supply/<Name>/manufacturer
	ModelName                string // /sys/class/power_supply/<Name>/model_name
	Online                   *int64 // /sys/class/power_supply/<Name>/online
	PowerAvg                 *int64 // /sys/class/power_supply/<Name>/power_avg
	PowerNow                 *int64 // /sys/class/power_supply/<Name>/power_now
	PrechargeCurrent         *int64 // /sys/class/power_supply/<Name>/precharge_current
	Present                  *int64 // /sys/class/power_supply/<Name>/present
	Scope                    string // /sys/class/power_supply/<Name>/scope
	SerialNumber             string // /sys/class/power_supply/<Name>/serial_number
	Status                   string // /sys/class/power_supply/<Name>/status
	Technology               string // /sys/class/power_supply/<Name>/technology
	Temp                     *int64 // /sys/class/power_supply/<Name>/temp
	TempAlertMax             *int64 // /sys/class/power_supply/<Name>/temp_alert_max
	TempAlertMin             *int64 // /sys/class/power_supply/<Name>/temp_alert_min
	TempAmbient              *int64 // /sys/class/power_supply/<Name>/temp_ambient
	TempAmbientMax           *int64 // /sys/class/power_supply/<Name>/temp_ambient_max
	TempAmbientMin           *int64 // /sys/class/power_supply/<Name>/temp_ambient_min
	TempMax                  *int64 // /sys/class/power_supply/<Name>/temp_max
	TempMin                  *int64 // /sys/class/power_supply/<Name>/temp_min
	TimeToEmptyAvg           *int64 // /sys/class/power_supply/<Name>/time_to_empty_avg
	TimeToEmptyNow           *int64 // /sys/class/power_supply/<Name>/time_to_empty_now
	TimeToFullAvg            *int64 // /sys/class/power_supply/<Name>/time_to_full_avg
	TimeToFullNow            *int64 // /sys/class/power_supply/<Name>/time_to_full_now
	Type                     string // /sys/class/power_supply/<Name>/type
	UsbType                  string // /sys/class/power_supply/<Name>/usb_type
	VoltageAvg               *int64 // /sys/class/power_supply/<Name>/voltage_avg
	VoltageBoot              *int64 // /sys/class/power_supply/<Name>/voltage_boot
	VoltageMax               *int64 // /sys/class/power_supply/<Name>/voltage_max
	VoltageMaxDesign         *int64 // /sys/class/power_supply/<Name>/voltage_max_design
	VoltageMin               *int64 // /sys/class/power_supply/<Name>/voltage_min
	VoltageMinDesign         *int64 // /sys/class/power_supply/<Name>/voltage_min_design
	VoltageNow               *int64 // /sys/class/power_supply/<Name>/voltage_now
	VoltageOCV               *int64 // /sys/class/power_supply/<Name>/voltage_ocv
}

PowerSupply contains info from files in /sys/class/power_supply for a single power supply.

type PowerSupplyClass 

type PowerSupplyClass map[string]PowerSupply

PowerSupplyClass is a collection of every power supply in /sys/class/power_supply.

The map keys are the names of the power supplies.

type RaplZone 

type RaplZone struct {
	Name           string // name of RAPL zone from file "name"
	Index          int    // index (different value for duplicate names)
	Path           string // filesystem path of RaplZone
	MaxMicrojoules uint64 // max RAPL microjoule value
}

RaplZone stores the information for one RAPL power zone.

func GetRaplZones 

func GetRaplZones(fs FS) ([]RaplZone, error)

GetRaplZones returns a slice of RaplZones. When RAPL files are not present, returns nil with error. - https://www.kernel.org/doc/Documentation/power/powercap/powercap.txt

func (RaplZone) GetEnergyMicrojoules 

func (rz RaplZone) GetEnergyMicrojoules() (uint64, error)

GetEnergyMicrojoules returns the current microjoule value from the zone energy counter https://www.kernel.org/doc/Documentation/power/powercap/powercap.txt

type SASDevice 

type SASDevice struct {
	Name         string   // /sys/class/sas_device/<Name>
	SASAddress   string   // /sys/class/sas_device/<Name>/sas_address
	SASPhys      []string // /sys/class/sas_device/<Name>/device/phy-*
	SASPorts     []string // /sys/class/sas_device/<Name>/device/ports-*
	BlockDevices []string // /sys/class/sas_device/<Name>/device/target*/*/block/*
}

type SASDeviceClass 

type SASDeviceClass map[string]*SASDevice

func (*SASDeviceClass) GetByName 

func (sdc *SASDeviceClass) GetByName(name string) *SASDevice

GetByName returns the SASDevice with the provided name.

func (*SASDeviceClass) GetByPhy 

func (sdc *SASDeviceClass) GetByPhy(name string) *SASDevice

GetByPhy finds the SASDevice that contains the provided PHY name.

func (*SASDeviceClass) GetByPort 

func (sdc *SASDeviceClass) GetByPort(name string) *SASDevice

GetByPort finds the SASDevice that contains the provided SAS Port name.

type SASHost 

type SASHost struct {
	Name     string   // /sys/class/sas_host/<Name>
	SASPhys  []string // /sys/class/sas_host/<Name>/device/phy-*
	SASPorts []string // /sys/class/sas_host/<Name>/device/ports-*
}

type SASHostClass 

type SASHostClass map[string]*SASHost

func (*SASHostClass) GetByName 

func (shc *SASHostClass) GetByName(hostName string) *SASHost

GetByName returns the SASHost with the provided name.

func (*SASHostClass) GetByPhy 

func (shc *SASHostClass) GetByPhy(phyName string) *SASHost

GetByPhy finds the SASHost that contains the provided PHY name.

func (*SASHostClass) GetByPort 

func (shc *SASHostClass) GetByPort(portName string) *SASHost

GetByPort finds the SASHost that contains the provided SAS Port name.

type SASPhy 

type SASPhy struct {
	Name                       string   // /sys/class/sas_phy/<Name>
	SASAddress                 string   // /sys/class/sas_phy/<Name>/sas_address
	SASPort                    string   // /sys/class/sas_phy/<Name>/device/ports
	DeviceType                 string   // /sys/class/sas_phy/<Name>/device_type
	InitiatorPortProtocols     []string // /sys/class/sas_phy/<Name>/initiator_port_protocols
	InvalidDwordCount          int      // /sys/class/sas_phy/<Name>/invalid_dword_count
	LossOfDwordSyncCount       int      // /sys/class/sas_phy/<Name>/loss_of_dword_sync_count
	MaximumLinkrate            float64  // /sys/class/sas_phy/<Name>/maximum_linkrate
	MaximumLinkrateHW          float64  // /sys/class/sas_phy/<Name>/maximum_linkrate_hw
	MinimumLinkrate            float64  // /sys/class/sas_phy/<Name>/minimum_linkrate
	MinimumLinkrateHW          float64  // /sys/class/sas_phy/<Name>/minimum_linkrate_hw
	NegotiatedLinkrate         float64  // /sys/class/sas_phy/<Name>/negotiated_linkrate
	PhyIdentifier              string   // /sys/class/sas_phy/<Name>/phy_identifier
	PhyResetProblemCount       int      // /sys/class/sas_phy/<Name>/phy_reset_problem_count
	RunningDisparityErrorCount int      // /sys/class/sas_phy/<Name>/running_disparity_error_count
	TargetPortProtocols        []string // /sys/class/sas_phy/<Name>/target_port_protocols
}

type SASPhyClass 

type SASPhyClass map[string]*SASPhy

func (*SASPhyClass) GetByName 

func (spc *SASPhyClass) GetByName(name string) *SASPhy

GetByName returns the SASPhy with the provided name.

type SASPort 

type SASPort struct {
	Name       string   // /sys/class/sas_device/<Name>
	SASPhys    []string // /sys/class/sas_device/<Name>/device/phy-*
	Expanders  []string // /sys/class/sas_port/<Name>/device/expander-*
	EndDevices []string // /sys/class/sas_port/<Name>/device/end_device-*
}

type SASPortClass 

type SASPortClass map[string]*SASPort

func (*SASPortClass) GetByEndDevice 

func (spc *SASPortClass) GetByEndDevice(name string) *SASPort

GetByEndDevice finds the SASPort that contains the provided SAS end device name.

func (*SASPortClass) GetByExpander 

func (spc *SASPortClass) GetByExpander(name string) *SASPort

GetByExpander finds the SASPort that contains the provided SAS expander name.

func (*SASPortClass) GetByName 

func (spc *SASPortClass) GetByName(name string) *SASPort

GetByName returns the SASPort with the provided name.

func (*SASPortClass) GetByPhy 

func (spc *SASPortClass) GetByPhy(name string) *SASPort

GetByPhy finds the SASPort that contains the provided PHY name.

type SCSITape 

type SCSITape struct {
	Name     string           // /sys/class/scsi_tape/<Name>
	Counters SCSITapeCounters // /sys/class/scsi_tape/<Name>/statistics/*
}

type SCSITapeClass 

type SCSITapeClass map[string]SCSITape

type SCSITapeCounters 

type SCSITapeCounters struct {
	WriteNs      uint64 // /sys/class/scsi_tape/<Name>/stats/write_ns
	ReadByteCnt  uint64 // /sys/class/scsi_tape/<Name>/stats/read_byte_cnt
	IoNs         uint64 // /sys/class/scsi_tape/<Name>/stats/io_ns
	WriteCnt     uint64 // /sys/class/scsi_tape/<Name>/stats/write_cnt
	ResidCnt     uint64 // /sys/class/scsi_tape/<Name>/stats/resid_cnt
	ReadNs       uint64 // /sys/class/scsi_tape/<Name>/stats/read_ns
	InFlight     uint64 // /sys/class/scsi_tape/<Name>/stats/in_flight
	OtherCnt     uint64 // /sys/class/scsi_tape/<Name>/stats/other_cnt
	ReadCnt      uint64 // /sys/class/scsi_tape/<Name>/stats/read_cnt
	WriteByteCnt uint64 // /sys/class/scsi_tape/<Name>/stats/write_byte_cnt
}

type SystemCPUCpufreqStats 

type SystemCPUCpufreqStats struct {
	Name                     string
	CpuinfoCurrentFrequency  *uint64
	CpuinfoMinimumFrequency  *uint64
	CpuinfoMaximumFrequency  *uint64
	CpuinfoTransitionLatency *uint64
	ScalingCurrentFrequency  *uint64
	ScalingMinimumFrequency  *uint64
	ScalingMaximumFrequency  *uint64
	AvailableGovernors       string
	Driver                   string
	Governor                 string
	RelatedCpus              string
	SetSpeed                 string
}

SystemCPUCpufreqStats contains stats from `/sys/devices/system/cpu/cpu[0-9]*/cpufreq/...`.

type VMStat 

type VMStat struct {
	NrFreePages                uint64
	NrZoneInactiveAnon         uint64
	NrZoneActiveAnon           uint64
	NrZoneInactiveFile         uint64
	NrZoneActiveFile           uint64
	NrZoneUnevictable          uint64
	NrZoneWritePending         uint64
	NrMlock                    uint64
	NrPageTablePages           uint64
	NrKernelStack              uint64
	NrBounce                   uint64
	NrZspages                  uint64
	NrFreeCma                  uint64
	NumaHit                    uint64
	NumaMiss                   uint64
	NumaForeign                uint64
	NumaInterleave             uint64
	NumaLocal                  uint64
	NumaOther                  uint64
	NrInactiveAnon             uint64
	NrActiveAnon               uint64
	NrInactiveFile             uint64
	NrActiveFile               uint64
	NrUnevictable              uint64
	NrSlabReclaimable          uint64
	NrSlabUnreclaimable        uint64
	NrIsolatedAnon             uint64
	NrIsolatedFile             uint64
	WorkingsetNodes            uint64
	WorkingsetRefault          uint64
	WorkingsetActivate         uint64
	WorkingsetRestore          uint64
	WorkingsetNodereclaim      uint64
	NrAnonPages                uint64
	NrMapped                   uint64
	NrFilePages                uint64
	NrDirty                    uint64
	NrWriteback                uint64
	NrWritebackTemp            uint64
	NrShmem                    uint64
	NrShmemHugepages           uint64
	NrShmemPmdmapped           uint64
	NrFileHugepages            uint64
	NrFilePmdmapped            uint64
	NrAnonTransparentHugepages uint64
	NrVmscanWrite              uint64
	NrVmscanImmediateReclaim   uint64
	NrDirtied                  uint64
	NrWritten                  uint64
	NrKernelMiscReclaimable    uint64
	NrFollPinAcquired          uint64
	NrFollPinReleased          uint64
}

type Vulnerability 

type Vulnerability struct {
	CodeName   string
	State      int
	Mitigation string
}

Vulnerability represents a single vulnerability extracted from /sys/devices/system/cpu/vulnerabilities/.

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