This file implements the ipset module. More...

#include "config.h"
#include "ipset/ipset.h"
#include "util/regional.h"
#include "util/net_help.h"
#include "util/config_file.h"
#include "services/cache/dns.h"
#include "sldns/sbuffer.h"
#include "sldns/wire2str.h"
#include "sldns/parseutil.h"
#include <libmnl/libmnl.h>
#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter/ipset/ip_set.h>

Macros
#define	BUFF_LEN 256

Typedefs
typedef struct mnl_socket *	filter_dev

Functions
static int	error_response (struct module_qstate *qstate, int id, int rcode)
	Return an error. More...

static void *	open_filter ()

static int	add_to_ipset (filter_dev dev, const char setname, const void ipaddr, int af)

static void	ipset_add_rrset_data (struct ipset_env ie, struct packed_rrset_data d, const char setname, int af, const char dname)

static int	ipset_check_zones_for_rrset (struct module_env env, struct ipset_env ie, struct ub_packed_rrset_key rrset, const char qname, int qlen, const char *setname, int af)

static int	ipset_update (struct module_env env, struct dns_msg return_msg, struct query_info qinfo, struct ipset_env *ie)

int	ipset_startup (struct module_env *env, int id)
	Startup the ipset module.

void	ipset_destartup (struct module_env *env, int id)
	Destartup the ipset module.

int	ipset_init (struct module_env *env, int id)
	Init the ipset module.

void	ipset_deinit (struct module_env *ATTR_UNUSED(env), int ATTR_UNUSED(id))

static int	ipset_new (struct module_qstate *qstate, int id)

void	ipset_operate (struct module_qstate qstate, enum module_ev event, int id, struct outbound_entry outbound)
	Operate on an event on a query (in qstate).

void	ipset_inform_super (struct module_qstate ATTR_UNUSED(qstate), int ATTR_UNUSED(id), struct module_qstate ATTR_UNUSED(super))

void	ipset_clear (struct module_qstate *qstate, int id)
	clear the ipset query-specific contents out of qstate

size_t	ipset_get_mem (struct module_env *env, int id)
	return memory estimate for ipset module

struct module_func_block *	ipset_get_funcblock (void)
	Get the function block with pointers to the ipset functions. More...

Variables
static struct module_func_block	ipset_block
	The ipset function block. More...

Detailed Description

This file implements the ipset module.

It can handle packets by putting the A and AAAA addresses that are configured in unbound.conf as type ipset (local-zone statements) into a firewall rule IPSet. For firewall blacklist and whitelist usage.

Function Documentation

◆ error_response()

static int error_response	(	struct module_qstate *	qstate,
		int	id,
		int	rcode
	)

static

Return an error.

Parameters

qstate	our query state
id	module id
rcode	error code (DNS errcode).

Returns: : 0 for use by caller, to make notation easy, like: return error_response(..).

References module_qstate::ext_state, module_finished, module_qstate::return_msg, module_qstate::return_rcode, sldns_lookup_by_id(), sldns_rcodes, VERB_QUERY, and verbose().

◆ ipset_get_funcblock()

struct module_func_block* ipset_get_funcblock ( void )

Get the function block with pointers to the ipset functions.

Returns: the function block for "ipset".

References ipset_block.

Referenced by module_funcs_avail().

Variable Documentation

◆ ipset_block

struct module_func_block ipset_block

static

Initial value:

= {
        "ipset",
        &ipset_startup, &ipset_destartup, &ipset_init, &ipset_deinit,
        &ipset_operate, &ipset_inform_super, &ipset_clear, &ipset_get_mem
}

The ipset function block.

Referenced by ipset_get_funcblock().

Macros

Typedefs