user_chk::UserId Class Reference

Encapsulates a unique identifier for a DHCP client. More...

#include <user.h>

Public Types
enum	UserIdType { HW_ADDRESS = 0 , DUID = 1 }
	Defines the supported types of user ids. More...

Public Member Functions
	UserId (UserIdType id_type, const std::string &id_str)
	Constructor.
	UserId (UserIdType id_type, const std::vector< uint8_t > &id)
	Constructor.
	~UserId ()
	Destructor.
const std::vector< uint8_t > &	getId () const
	Returns a const reference to the actual id value.
UserIdType	getType () const
	Returns the user id type.
bool	operator!= (const UserId &other) const
	Compares two UserIds for inequality.
bool	operator< (const UserId &other) const
	Performs less than comparison of two UserIds.
bool	operator== (const UserId &other) const
	Compares two UserIds for equality.
std::string	toText (char delim_char=0x0) const
	Returns textual representation of the id.

Static Public Member Functions
static UserIdType	lookupType (const std::string &type_str)
	Returns the id type for a given text label.
static std::string	lookupTypeStr (UserIdType type)
	Returns the text label for a given id type.

Static Public Attributes
static const char *	DUID_STR = "DUID"
	Define the text label DUID id type.
static const char *	HW_ADDRESS_STR = "HW_ADDR"
	Defines the text label hardware address id type.

Detailed Description

Encapsulates a unique identifier for a DHCP client.

This class provides a generic wrapper around the information used to uniquely identify the requester in a DHCP request packet. It provides the necessary operators such that it can be used as a key within STL containers such as maps. It supports both IPv4 and IPv6 clients.

Definition at line 27 of file user.h.

Member Enumeration Documentation

UserIdType

enum user_chk::UserId::UserIdType

Defines the supported types of user ids.

Enumerator
HW_ADDRESS	Hardware addresses (MAC) are used for IPv4 clients.
DUID	DUIDs are used for IPv6 clients.

Definition at line 32 of file user.h.

Constructor & Destructor Documentation

UserId() [1/2]

user_chk::UserId::UserId	(	UserIdType	id_type,
		const std::vector< uint8_t > &	id )

Constructor.

Constructs a UserId from an id type and id vector.

Parameters

id_type	The type of user id contained in vector
id	a vector of unsigned bytes containing the id

Exceptions

isc::BadValue

if the vector is empty.

Definition at line 26 of file user.cc.

References isc_throw.

UserId() [2/2]

user_chk::UserId::UserId	(	UserIdType	id_type,
		const std::string &	id_str )

Constructor.

Constructs a UserId from an id type and id string.

Parameters

id_type	The type of user id contained in string. The string is expected to contain an even number of hex digits with or without colon (':') as a delimiter.
id_str	string of hex digits representing the user's id

Exceptions

isc::BadValue

if the string is empty, contains non valid hex digits, or an odd number of hex digits.

Definition at line 33 of file user.cc.

References isc::util::encode::decodeHex(), DUID, isc::dhcp::HTYPE_ETHER, HW_ADDRESS, and isc_throw.

Here is the call graph for this function:

~UserId()

user_chk::UserId::~UserId

(

)

Destructor.

Definition at line 70 of file user.cc.

Member Function Documentation

getId()

const std::vector< uint8_t > & user_chk::UserId::getId

(

)

const

Returns a const reference to the actual id value.

Definition at line 74 of file user.cc.

getType()

UserId::UserIdType user_chk::UserId::getType

(

)

const

Returns the user id type.

Definition at line 79 of file user.cc.

lookupType()

UserId::UserIdType user_chk::UserId::lookupType ( const std::string & type_str )

static

Returns the id type for a given text label.

Parameters

type_str

The text label for which the id value is desired

Exceptions

isc::BadValue

if type_str is not a valid text label.

Definition at line 136 of file user.cc.

References DUID, DUID_STR, HW_ADDRESS, HW_ADDRESS_STR, and isc_throw.

Referenced by user_chk::UserFile::makeUser().

lookupTypeStr()

std::string user_chk::UserId::lookupTypeStr ( UserIdType type )

static

Returns the text label for a given id type.

Parameters

type	The id type value for which the label is desired

Exceptions

isc::BadValue

if type is not valid.

Definition at line 118 of file user.cc.

References DUID, DUID_STR, HW_ADDRESS, HW_ADDRESS_STR, and isc_throw.

Referenced by user_chk::operator<<().

operator!=()

bool user_chk::UserId::operator!=

(

const UserId &

other

)

const

Compares two UserIds for inequality.

Definition at line 107 of file user.cc.

operator<()

bool user_chk::UserId::operator<

(

const UserId &

other

)

const

Performs less than comparison of two UserIds.

Definition at line 111 of file user.cc.

operator==()

bool user_chk::UserId::operator==

(

const UserId &

other

)

const

Compares two UserIds for equality.

Definition at line 102 of file user.cc.

toText()

std::string user_chk::UserId::toText

(

char

delim_char = 0x0

)

const

Returns textual representation of the id.

Outputs a string of hex digits representing the id with an optional delimiter between digit pairs (i.e. bytes).

Without a delimiter: "0c220F"

with colon as a delimiter: "0c:22:0F"

Parameters

delim_char

The delimiter to place in between "bytes". It defaults to none. (e.g. 00010203ff)

Definition at line 84 of file user.cc.

Member Data Documentation

DUID_STR

const char * user_chk::UserId::DUID_STR = "DUID"

static

Define the text label DUID id type.

Definition at line 42 of file user.h.

Referenced by lookupType(), lookupTypeStr(), and pkt6_send().

HW_ADDRESS_STR

const char * user_chk::UserId::HW_ADDRESS_STR = "HW_ADDR"

static

Defines the text label hardware address id type.

Definition at line 40 of file user.h.

Referenced by lookupType(), lookupTypeStr(), and pkt4_send().

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The documentation for this class was generated from the following files:

• user.h
• user.cc