iter_donotq.h File Reference

This file contains functions to assist the iterator module. More...

#include "util/rbtree.h"

Data Structures
struct	iter_donotq
	Iterator donotqueryaddresses structure. More...
struct	iter_donotq_addr
	Iterator donotquery address. More...
Functions
struct iter_donotq *	donotq_create ()
	Create donotqueryaddresses structure.
void	donotq_delete (struct iter_donotq *donotq)
	Delete donotqueryaddresses structure.
int	donotq_apply_cfg (struct iter_donotq *donotq, struct config_file *cfg)
	Process donotqueryaddresses config.
int	donotq_lookup (struct iter_donotq *donotq, struct sockaddr_storage *addr, socklen_t addrlen)
	See if an address is blocked.
size_t	donotq_get_mem (struct iter_donotq *donotq)
	Get memory used by donotqueryaddresses structure.
int	donotq_cmp (const void *k1, const void *k2)
	compare two donotq entries

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Detailed Description

This file contains functions to assist the iterator module.

Keep track of the donotquery addresses and lookup fast.

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Function Documentation

struct iter_donotq* donotq_create

(

)

[read]

Create donotqueryaddresses structure.

Returns:

new structure or NULL on error.

References donotq_delete(), iter_donotq::region, and regional_create().

Referenced by iter_apply_cfg().

void donotq_delete

(

struct iter_donotq *

donotq

)

Delete donotqueryaddresses structure.

Parameters:

donotq,:

to delete.

References iter_donotq::region, regional_destroy(), and iter_donotq::tree.

Referenced by donotq_create(), and iter_deinit().

int donotq_apply_cfg	(	struct iter_donotq *	donotq,
		struct config_file *	cfg
	)

Process donotqueryaddresses config.

Parameters:

	donotq,:	where to store.
	cfg,:	config options.

Returns:

0 on error.

References config_file::do_ip6, donotq_cmp(), donotq_init_parents(), donotq_str_cfg(), config_file::donotquery_localhost, rbtree_create(), read_donotq(), and iter_donotq::tree.

Referenced by iter_apply_cfg().

int donotq_lookup	(	struct iter_donotq *	donotq,
		struct sockaddr_storage *	addr,
		socklen_t	addrlen
	)

See if an address is blocked.

Parameters:

	donotq,:	structure for address storage.
	addr,:	address to check
	addrlen,:	length of addr.

Returns:

: true if the address must not be queried. false if unlisted.

References iter_donotq_addr::addr, addr_in_common(), addr_is_ip6(), iter_donotq_addr::addrlen, rbnode_t::key, iter_donotq_addr::net, iter_donotq_addr::node, iter_donotq_addr::parent, rbtree_find_less_equal(), and iter_donotq::tree.

Referenced by iter_filter_unsuitable().

size_t donotq_get_mem

(

struct iter_donotq *

donotq

)

Get memory used by donotqueryaddresses structure.

Parameters:

donotq,:

structure for address storage.

Returns:

bytes in use.

References iter_donotq::region, and regional_get_mem().

Referenced by iter_get_mem().