cmd

Documentation

Overview

Package cmd implements the subcommands of xdp_loader.

Index

• func RedirectLinkPath(iface string) string
• func RedirectMapPath(iface string) string
• func RedirectPinDir(iface string) string
• func RedirectProgramPath(iface string) string
• func TunnelHostLinkPath(iface string) string
• func TunnelHostMapPath(iface string) string
• func TunnelHostProgramPath(iface string) string
• func TunnelPinDir(iface string) string
• func TunnelVethLinkPath(iface string) string
• func TunnelVethMapPath(iface string) string
• func TunnelVethProgramPath(iface string) string
• type DropCommand
  • func (pc *DropCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus
  • func (*DropCommand) Name() string
  • func (pc *DropCommand) SetFlags(fs *flag.FlagSet)
  • func (*DropCommand) Synopsis() string
  • func (*DropCommand) Usage() string
• type PassCommand
  • func (pc *PassCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus
  • func (*PassCommand) Name() string
  • func (pc *PassCommand) SetFlags(fs *flag.FlagSet)
  • func (*PassCommand) Synopsis() string
  • func (*PassCommand) Usage() string
• type RedirectHostCommand
  • func (rc *RedirectHostCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus
  • func (*RedirectHostCommand) Name() string
  • func (rc *RedirectHostCommand) SetFlags(fs *flag.FlagSet)
  • func (*RedirectHostCommand) Synopsis() string
  • func (*RedirectHostCommand) Usage() string
• type TcpdumpCommand
  • func (pc *TcpdumpCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus
  • func (*TcpdumpCommand) Name() string
  • func (pc *TcpdumpCommand) SetFlags(fs *flag.FlagSet)
  • func (*TcpdumpCommand) Synopsis() string
  • func (*TcpdumpCommand) Usage() string
• type TunnelCommand
  • func (tn *TunnelCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus
  • func (*TunnelCommand) Name() string
  • func (tn *TunnelCommand) SetFlags(fs *flag.FlagSet)
  • func (*TunnelCommand) Synopsis() string
  • func (*TunnelCommand) Usage() string

Functions

func RedirectLinkPath

func RedirectLinkPath(iface string) string

RedirectLinkPath returns the path where the eBPF link will be pinned when xdp_loader is run against iface.

func RedirectMapPath

func RedirectMapPath(iface string) string

RedirectMapPath returns the path where the eBPF map will be pinned when xdp_loader is run against iface.

func RedirectPinDir

func RedirectPinDir(iface string) string

RedirectPinDir returns the directory to which eBPF objects will be pinned when xdp_loader is run against iface.

func RedirectProgramPath

func RedirectProgramPath(iface string) string

RedirectProgramPath returns the path where the eBPF program will be pinned when xdp_loader is run against iface.

func TunnelHostLinkPath

func TunnelHostLinkPath(iface string) string

TunnelHostLinkPath returns the path where the eBPF link will be pinned when xdp_loader is run against iface.

func TunnelHostMapPath

func TunnelHostMapPath(iface string) string

TunnelHostMapPath returns the path where the eBPF map will be pinned when xdp_loader is run against iface.

func TunnelHostProgramPath

func TunnelHostProgramPath(iface string) string

TunnelHostProgramPath returns the path where the eBPF program will be pinned when xdp_loader is run against iface.

func TunnelPinDir

func TunnelPinDir(iface string) string

TunnelPinDir returns the directory to which eBPF objects will be pinned when xdp_loader is run against iface.

func TunnelVethLinkPath

func TunnelVethLinkPath(iface string) string

TunnelVethLinkPath returns the path where the eBPF link should be pinned when xdp_loader is run against iface.

func TunnelVethMapPath

func TunnelVethMapPath(iface string) string

TunnelVethMapPath returns the path where the eBPF map should be pinned when xdp_loader is run against iface.

func TunnelVethProgramPath

func TunnelVethProgramPath(iface string) string

TunnelVethProgramPath returns the path where the eBPF program should be pinned when xdp_loader is run against iface.

Types

type DropCommand

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

DropCommand is a subcommand for dropping packets.

func (*DropCommand) Execute

func (pc *DropCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus

Execute implements subcommands.Command.Execute.

func (*DropCommand) Name

func (*DropCommand) Name() string

Name implements subcommands.Command.Name.

func (*DropCommand) SetFlags

func (pc *DropCommand) SetFlags(fs *flag.FlagSet)

SetFlags implements subcommands.Command.SetFlags.

func (*DropCommand) Synopsis

func (*DropCommand) Synopsis() string

Synopsis implements subcommands.Command.Synopsis.

func (*DropCommand) Usage

func (*DropCommand) Usage() string

Usage implements subcommands.Command.Usage.

type PassCommand

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

PassCommand is a subcommand for passing packets to the kernel network stack.

func (*PassCommand) Execute

func (pc *PassCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus

Execute implements subcommands.Command.Execute.

func (*PassCommand) Name

func (*PassCommand) Name() string

Name implements subcommands.Command.Name.

func (*PassCommand) SetFlags

func (pc *PassCommand) SetFlags(fs *flag.FlagSet)

SetFlags implements subcommands.Command.SetFlags.

func (*PassCommand) Synopsis

func (*PassCommand) Synopsis() string

Synopsis implements subcommands.Command.Synopsis.

func (*PassCommand) Usage

func (*PassCommand) Usage() string

Usage implements subcommands.Command.Usage.

type RedirectHostCommand

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

RedirectHostCommand is a subcommand for redirecting incoming packets based on a pinned eBPF map. It redirects all non-SSH traffic to a single AF_XDP socket.

func (*RedirectHostCommand) Execute

func (rc *RedirectHostCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus

Execute implements subcommands.Command.Execute.

func (*RedirectHostCommand) Name

func (*RedirectHostCommand) Name() string

Name implements subcommands.Command.Name.

func (*RedirectHostCommand) SetFlags

func (rc *RedirectHostCommand) SetFlags(fs *flag.FlagSet)

SetFlags implements subcommands.Command.SetFlags.

func (*RedirectHostCommand) Synopsis

func (*RedirectHostCommand) Synopsis() string

Synopsis implements subcommands.Command.Synopsis.

func (*RedirectHostCommand) Usage

func (*RedirectHostCommand) Usage() string

Usage implements subcommands.Command.Usage.

type TcpdumpCommand

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

TcpdumpCommand is a subcommand for capturing incoming packets.

func (*TcpdumpCommand) Execute

func (pc *TcpdumpCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus

Execute implements subcommands.Command.Execute.

func (*TcpdumpCommand) Name

func (*TcpdumpCommand) Name() string

Name implements subcommands.Command.Name.

func (*TcpdumpCommand) SetFlags

func (pc *TcpdumpCommand) SetFlags(fs *flag.FlagSet)

SetFlags implements subcommands.Command.SetFlags.

func (*TcpdumpCommand) Synopsis

func (*TcpdumpCommand) Synopsis() string

Synopsis implements subcommands.Command.Synopsis.

func (*TcpdumpCommand) Usage

func (*TcpdumpCommand) Usage() string

Usage implements subcommands.Command.Usage.

type TunnelCommand

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

TunnelCommand is a subcommand for tunneling traffic between two NICs. It is intended as a fast path between the host NIC and the veth of a container.

SSH traffic is not tunneled. It is passed through to the Linux network stack.

func (*TunnelCommand) Execute

func (tn *TunnelCommand) Execute(context.Context, *flag.FlagSet, ...any) subcommands.ExitStatus

Execute implements subcommands.Command.Execute.

func (*TunnelCommand) Name

func (*TunnelCommand) Name() string

Name implements subcommands.Command.Name.

func (*TunnelCommand) SetFlags

func (tn *TunnelCommand) SetFlags(fs *flag.FlagSet)

SetFlags implements subcommands.Command.SetFlags.

func (*TunnelCommand) Synopsis

func (*TunnelCommand) Synopsis() string

Synopsis implements subcommands.Command.Synopsis.

func (*TunnelCommand) Usage

func (*TunnelCommand) Usage() string

Usage implements subcommands.Command.Usage.