iptm

Documentation

Index

• Variables
• type IptEntry
• type IptablesManager
  • func NewIptablesManager() *IptablesManager
  • func (iptMgr *IptablesManager) Add(entry *IptEntry) error
  • func (iptMgr *IptablesManager) AddAllChains() error
  • func (iptMgr *IptablesManager) AddAllRulesToChains() error
  • func (iptMgr *IptablesManager) AddChain(chain string) error
  • func (iptMgr *IptablesManager) CheckAndAddForwardChain() error
  • func (iptMgr *IptablesManager) Delete(entry *IptEntry) error
  • func (iptMgr *IptablesManager) DeleteChain(chain string) error
  • func (iptMgr *IptablesManager) Exists(entry *IptEntry) (bool, error)
  • func (iptMgr *IptablesManager) GetChainLineNumber(chain string, parentChain string) (int, error)
  • func (iptMgr *IptablesManager) InitNpmChains() error
  • func (iptMgr *IptablesManager) Restore(configFile string) error
  • func (iptMgr *IptablesManager) Run(entry *IptEntry) (int, error)
  • func (iptMgr *IptablesManager) Save(configFile string) error
  • func (iptMgr *IptablesManager) UninitNpmChains() error

Variables

var (
	// IptablesAzureChainList contains list of all NPM chains
	IptablesAzureChainList = []string{
		util.IptablesAzureChain,
		util.IptablesAzureAcceptChain,
		util.IptablesAzureIngressChain,
		util.IptablesAzureEgressChain,
		util.IptablesAzureIngressPortChain,
		util.IptablesAzureIngressFromChain,
		util.IptablesAzureEgressPortChain,
		util.IptablesAzureEgressToChain,
		util.IptablesAzureIngressDropsChain,
		util.IptablesAzureEgressDropsChain,
	}
)

Types

type IptEntry

type IptEntry struct {
	Command               string
	Name                  string
	Chain                 string
	Flag                  string
	LockWaitTimeInSeconds string
	IsJumpEntry           bool
	Specs                 []string
}

IptEntry represents an iptables rule.

type IptablesManager

type IptablesManager struct {
	OperationFlag string
}

IptablesManager stores iptables entries.

func NewIptablesManager

func NewIptablesManager() *IptablesManager

NewIptablesManager creates a new instance for IptablesManager object.

func (*IptablesManager) Add

func (iptMgr *IptablesManager) Add(entry *IptEntry) error

Add adds a rule in iptables.

func (*IptablesManager) AddAllChains

func (iptMgr *IptablesManager) AddAllChains() error

AddAllChains adds all NPM chains

func (*IptablesManager) AddAllRulesToChains

func (iptMgr *IptablesManager) AddAllRulesToChains() error

AddAllRulesToChains Checks and adds all the rules in NPM chains

func (*IptablesManager) AddChain

func (iptMgr *IptablesManager) AddChain(chain string) error

AddChain adds a chain to iptables.

func (*IptablesManager) CheckAndAddForwardChain

func (iptMgr *IptablesManager) CheckAndAddForwardChain() error

CheckAndAddForwardChain initializes and reconciles Azure-NPM chain in right order

func (*IptablesManager) Delete

func (iptMgr *IptablesManager) Delete(entry *IptEntry) error

Delete removes a rule in iptables.

func (*IptablesManager) DeleteChain

func (iptMgr *IptablesManager) DeleteChain(chain string) error

DeleteChain deletes a chain from iptables.

func (*IptablesManager) Exists

func (iptMgr *IptablesManager) Exists(entry *IptEntry) (bool, error)

Exists checks if a rule exists in iptables.

func (*IptablesManager) GetChainLineNumber

func (iptMgr *IptablesManager) GetChainLineNumber(chain string, parentChain string) (int, error)

GetChainLineNumber given a Chain and its parent chain returns line number

func (*IptablesManager) InitNpmChains

func (iptMgr *IptablesManager) InitNpmChains() error

InitNpmChains initializes Azure NPM chains in iptables.

func (*IptablesManager) Restore

func (iptMgr *IptablesManager) Restore(configFile string) error

Restore restores iptables configuration from /var/log/iptables.conf

func (*IptablesManager) Run

func (iptMgr *IptablesManager) Run(entry *IptEntry) (int, error)

Run execute an iptables command to update iptables.

func (*IptablesManager) Save

func (iptMgr *IptablesManager) Save(configFile string) error

Save saves current iptables configuration to /var/log/iptables.conf

func (*IptablesManager) UninitNpmChains

func (iptMgr *IptablesManager) UninitNpmChains() error

UninitNpmChains uninitializes Azure NPM chains in iptables.