Documentation
¶
Overview ¶
Package system provides a portable interface to low-level system networking operations.
Index ¶
Constants ¶
This section is empty.
Variables ¶
var ErrLinkChange = errors.New("link state change")
ErrLinkChange is a sentinel value which indicates a link state change.
Functions ¶
This section is empty.
Types ¶
type Conn ¶
type Conn interface {
ReadFrom() (ndp.Message, *ipv6.ControlMessage, net.IP, error)
SetReadDeadline(t time.Time) error
WriteTo(m ndp.Message, cm *ipv6.ControlMessage, dst net.IP) error
}
A Conn abstracts IPv6 NDP socket operations for purposes of testing.
type DialContext ¶
type DialContext struct {
Conn Conn
Interface *net.Interface
IP net.IP
// contains filtered or unexported fields
}
A DialContext stores data used in the context of a Dialer.Dial closure.
type Dialer ¶
type Dialer struct {
// DialFunc specifies a function which will override the default dialing
// logic to produce an arbitrary DialContext. DialFunc should only be
// set in tests.
DialFunc func() *DialContext
// contains filtered or unexported fields
}
A Dialer can create Conns which can be reinitialized on certain errors.
func (*Dialer) Dial ¶
func (d *Dialer) Dial(ctx context.Context, fn func(ctx context.Context, dctx *DialContext) error) error
Dial creates a Conn and invokes fn with a populated DialContext for the caller's use. If fn returns an error which is considered retryable, Dial will attempt to re-dial the Conn and invoke fn again.
type State ¶
type State interface {
IPv6Autoconf(iface string) (bool, error)
IPv6Forwarding(iface string) (bool, error)
}
State is a type which can manipulate the low-level IPv6 parameters of a system.
type TestState ¶
type TestState struct {
// Global settings for any interface name.
Autoconf, Forwarding bool
Error error
// Alternatively, you may configure parameters individually on a
// per-interface basis. Note that these configurations will override any
// global configurations set above.
Interfaces map[string]TestStateInterface
}
A TestState is a State which is primarily useful in tests.
func (TestState) IPv6Autoconf ¶
IPv6Autoconf implements State.
type TestStateInterface ¶
type TestStateInterface struct {
Autoconf, Forwarding bool
}
A TestStateInterface sets the State configuration for a simulated network interface.
Source Files