hash.c File Reference

The leases hash functions. More...

#include <config.h>
#include <stdlib.h>
#include "xalloc.h"
#include "dhcpd-pools.h"

Include dependency graph for hash.c:

Macros
#define	HASH_FIND_V6(head, findv6, out)   HASH_FIND(hh, head, findv6, 16, out)
#define	HASH_ADD_V6(head, v6field, add)   HASH_ADD(hh, head, v6field, 16, add)

Functions
void	add_lease_init (struct conf_t *state __attribute__((unused)), union ipaddr_t *addr __attribute__((unused)), enum ltype type __attribute__((unused)))
	Add a lease to hash array. More...
void	add_lease_v4 (struct conf_t *state, union ipaddr_t *addr, enum ltype type)
void	add_lease_v6 (struct conf_t *state, union ipaddr_t *addr, enum ltype type)
struct leases_t *	find_lease_init (struct conf_t *state __attribute__((unused)), union ipaddr_t *addr __attribute__((unused)))
	Find pointer to lease from hash array. More...
struct leases_t *	find_lease_v4 (struct conf_t *state, union ipaddr_t *addr)
struct leases_t *	find_lease_v6 (struct conf_t *state, union ipaddr_t *addr)
void	delete_lease (struct conf_t *state, struct leases_t *lease)
	Delete a lease from hash array. More...
void	delete_all_leases (struct conf_t *state)
	Delete all leases from hash array. More...

Detailed Description

The leases hash functions.

The hash sorting is key to make analysis happen as quick as possible..

Macro Definition Documentation

HASH_ADD_V6

#define HASH_ADD_V6	(		head,
			v6field,
			add
	)		HASH_ADD(hh, head, v6field, 16, add)

Referenced by add_lease_v6().

HASH_FIND_V6

#define HASH_FIND_V6	(		head,
			findv6,
			out
	)		HASH_FIND(hh, head, findv6, 16, out)

Referenced by find_lease_v6().

Function Documentation

add_lease_init()

void add_lease_init	(	struct conf_t *state	__attribute__(unused),
		union ipaddr_t *addr	__attribute__(unused),
		enum ltype type	__attribute__(unused)
	)

Add a lease to hash array.

Parameters

addr	Binary IP to be added in leases hash.
type	Lease state of the IP.

add_lease_v4()

void add_lease_v4	(	struct conf_t *	state,
		union ipaddr_t *	addr,
		enum ltype	type
	)

Referenced by set_ipv_functions().

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add_lease_v6()

void add_lease_v6	(	struct conf_t *	state,
		union ipaddr_t *	addr,
		enum ltype	type
	)

Referenced by set_ipv_functions().

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delete_all_leases()

void delete_all_leases

(

struct conf_t *

state

)

Delete all leases from hash array.

Referenced by clean_up(), and delete_lease().

delete_lease()

void delete_lease	(	struct conf_t *	state,
		struct leases_t *	lease
	)

Delete a lease from hash array.

Parameters

lease

Pointer to lease hash.

Referenced by parse_leases().

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find_lease_init()

struct leases_t* find_lease_init	(	struct conf_t *state	__attribute__(unused),
		union ipaddr_t *addr	__attribute__(unused)
	)

Find pointer to lease from hash array.

Parameters

addr	Binary IP searched from leases hash.

Returns

A lease structure about requested IP, or NULL.

find_lease_v4()

struct leases_t* find_lease_v4	(	struct conf_t *	state,
		union ipaddr_t *	addr
	)

Referenced by set_ipv_functions().

find_lease_v6()

struct leases_t* find_lease_v6	(	struct conf_t *	state,
		union ipaddr_t *	addr
	)

Referenced by set_ipv_functions().