Affected by GO-2022-0368 and 4 other vulnerabilities

GO-2022-0368: Improper random number generation in github.com/coredns/coredns

GO-2024-3130: CoreDNS vulnerable to TuDoor Attacks in github.com/coredns/coredns

GO-2025-3743: CoreDNS Vulnerable to DoQ Memory Exhaustion via Stream Amplification in github.com/coredns/coredns

GO-2025-3942: CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion in github.com/coredns/coredns

GO-2026-4289: CoreDNS gRPC/HTTPS/HTTP3 servers lack resource limits, enabling DoS via unbounded connections and oversized messages in github.com/coredns/coredns

up

package

v1.6.4 Latest Latest Go to latest Published: Sep 27, 2019 License: Apache-2.0 Imports: 2 Imported by: 75

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/coredns/coredns

Links

Documentation ¶

Overview ¶

Package up is used to run a function for some duration. If a new function is added while a previous run is still ongoing, nothing new will be executed.

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Func ¶

type Func func() error

Func is used to determine if a target is alive. If so this function must return nil.

type Probe ¶

type Probe struct {
	sync.Mutex
	// contains filtered or unexported fields
}

Probe is used to run a single Func until it returns true (indicating a target is healthy). If an Func is already in progress no new one will be added, i.e. there is always a maximum of 1 checks in flight. When failures start to happen we will back off every second failure up to maximum of 4 intervals.

func New ¶

func New() *Probe

New returns a pointer to an initialized Probe.

func (*Probe) Do ¶

func (p *Probe) Do(f Func)

Do will probe target, if a probe is already in progress this is a noop.

func (*Probe) Start ¶

func (p *Probe) Start(interval time.Duration)

Start will initialize the probe manager, after which probes can be initiated with Do.

func (*Probe) Stop ¶

func (p *Probe) Stop()

Stop stops the probing.

Source Files ¶

View all Source files

up.go

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