nodetainted

Documentation

Index

• func DecodeKernelTaintsFromBitMask(bitmask uint64) []string
• func DecodeKernelTaintsFromLetters(letters string) []string
• func GetOtherTaintedBits(taintsMask uint64, taintedBitsByModules map[int]bool) []int
• func GetTaintMsg(bit int) string
• func GetTaintedBitsByModules(tainters map[string]string) (map[int]bool, error)
• func RemoveAllExceptNumbers(incomingStr string) string
• type KernelTaint
• type NodeTainted
  • func NewNodeTaintedTester(context *clientsholder.Context, node string) *NodeTainted
  • func (nt *NodeTainted) GetKernelTaintsMask() (uint64, error)
  • func (nt *NodeTainted) GetTainterModules(allowList map[string]bool) (tainters map[string]string, taintBits map[int]bool, err error)

Functions

func DecodeKernelTaintsFromBitMask

func DecodeKernelTaintsFromBitMask(bitmask uint64) []string

func DecodeKernelTaintsFromLetters

func DecodeKernelTaintsFromLetters(letters string) []string

func GetOtherTaintedBits

func GetOtherTaintedBits(taintsMask uint64, taintedBitsByModules map[int]bool) []int

GetOtherTaintedBits helper function to get the tainted bits that are not related to any module.

func GetTaintMsg

func GetTaintMsg(bit int) string

func GetTaintedBitsByModules

func GetTaintedBitsByModules(tainters map[string]string) (map[int]bool, error)

GetTaintedBitsByModules helper function to gets, for each module, the taint bits from its taint letters.

func RemoveAllExceptNumbers

func RemoveAllExceptNumbers(incomingStr string) string

Types

type KernelTaint

type KernelTaint struct {
	Description string
	Letters     string
}

type NodeTainted

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

NodeTainted holds information about tainted nodes.

func NewNodeTaintedTester

func NewNodeTaintedTester(context *clientsholder.Context, node string) *NodeTainted

NewNodeTainted creates a new NodeTainted tester

func (*NodeTainted) GetKernelTaintsMask

func (nt *NodeTainted) GetKernelTaintsMask() (uint64, error)

func (*NodeTainted) GetTainterModules

func (nt *NodeTainted) GetTainterModules(allowList map[string]bool) (tainters map[string]string, taintBits map[int]bool, err error)

GetTainterModules runs a command in the node to get all the modules that have set a kernel taint bit. Returns:

• tainters: maps a module to a string of taints letters. Each letter maps to a single bit in the taint mask. Tainters that appear in the allowlist will not be added to this map.
• taintBits: bits (pos) of kernel taints caused by all modules (included the allowlisted ones).