Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func NewIPv6UDPConn ¶
NewIPv6UDPConn returns a UDPv6-only connection bound to both the interface and port given based on a IPv6 DGRAM socket. As a bonus, you can actually listen on a multicast address instead of being punted to the wildcard
The interface must already be configured.
Types ¶
type DebugLogger ¶
type DebugLogger struct {
// Printfer is used for actual output of the logger
Printfer
}
DebugLogger is a wrapper for Printfer to implement interface Logger. DHCP messages are printed in the long format.
func (DebugLogger) PrintMessage ¶
func (d DebugLogger) PrintMessage(prefix string, message *dhcpv6.Message)
PrintMessage prints a DHCP message in the long format via predefined Printfer
func (DebugLogger) Printf ¶
func (d DebugLogger) Printf(format string, v ...interface{})
Printf prints a log message as-is via predefined Printfer
type EmptyLogger ¶
type EmptyLogger struct{}
EmptyLogger prints nothing
func (EmptyLogger) PrintMessage ¶
func (e EmptyLogger) PrintMessage(prefix string, message *dhcpv6.Message)
PrintMessage is just a dummy function that does nothing
func (EmptyLogger) Printf ¶
func (e EmptyLogger) Printf(format string, v ...interface{})
Printf is just a dummy function that does nothing
type Handler ¶
Handler is a type that defines the handler function to be called every time a valid DHCPv6 message is received
type Logger ¶
type Logger interface {
// PrintMessage print _all_ DHCP messages
PrintMessage(prefix string, message *dhcpv6.Message)
// Printf is use to print the rest debugging information
Printf(format string, v ...interface{})
}
Logger is a handler which will be used to output logging messages
type Printfer ¶
type Printfer interface {
// Printf is the function for logging output. Arguments are handled in the manner of fmt.Printf.
Printf(format string, v ...interface{})
}
Printfer is used for actual output of the logger. For example *log.Logger is a Printfer.
type Server ¶
type Server struct {
// contains filtered or unexported fields
}
Server represents a DHCPv6 server object
func NewServer ¶
func NewServer(ifname string, addr *net.UDPAddr, handler Handler, opt ...ServerOpt) (*Server, error)
NewServer initializes and returns a new Server object, listening on `addr`.
- If `addr` is a multicast group, the group will be additionally joined
- If `addr` is the wildcard address on the DHCPv6 server port (`[::]:547), the multicast groups All_DHCP_Relay_Agents_and_Servers(`[ff02::1:2]`) and All_DHCP_Servers(`[ff05::1:3]:547`) will be joined.
- If `addr` is nil, IPv6 unspec on the DHCP server port is used and the above behaviour applies
If `WithConn` is used with a non-nil address, `addr` and `ifname` have no effect. In such case, joining the multicast group is the caller's responsibility.
type ServerOpt ¶
type ServerOpt func(s *Server)
A ServerOpt configures a Server.
func WithConn ¶
func WithConn(conn net.PacketConn) ServerOpt
WithConn configures a server with the given connection.
func WithDebugLogger ¶
func WithDebugLogger() ServerOpt
WithDebugLogger logs multi-line full DHCPv6 messages when sent & received.
func WithLogger ¶
WithLogger set the logger (see interface Logger).
func WithSummaryLogger ¶
func WithSummaryLogger() ServerOpt
WithSummaryLogger logs one-line DHCPv6 message summaries when sent & received.
type ShortSummaryLogger ¶
type ShortSummaryLogger struct {
// Printfer is used for actual output of the logger
Printfer
}
ShortSummaryLogger is a wrapper for Printfer to implement interface Logger. DHCP messages are printed in the short format.
func (ShortSummaryLogger) PrintMessage ¶
func (s ShortSummaryLogger) PrintMessage(prefix string, message *dhcpv6.Message)
PrintMessage prints a DHCP message in the short format via predefined Printfer
func (ShortSummaryLogger) Printf ¶
func (s ShortSummaryLogger) Printf(format string, v ...interface{})
Printf prints a log message as-is via predefined Printfer
Source Files