blacklists.c File Reference

Kamailio Blacklist functions. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fnmatch.h>
#include <time.h>
#include <unistd.h>
#include "mem/mem.h"
#include "mem/shm_mem.h"
#include "mi/mi.h"
#include "dprint.h"
#include "blacklists.h"
#include "timer.h"
#include "ut.h"

Include dependency graph for blacklists.c:

Go to the source code of this file.

Functions
int	add_list_to_head (struct bl_head *head, struct bl_rule *first, struct bl_rule *last, int truncate, int expire_limit)
int	add_rule_to_list (struct bl_rule **first, struct bl_rule **last, struct net *ip_net, str *body, unsigned short port, unsigned short proto, int flags)
	adds a new rule to a list of rules
int	check_against_blacklist (struct ip_addr *ip, str *text, unsigned short port, unsigned short proto)
static int	check_against_rule_list (struct ip_addr *ip, str *text, unsigned short port, unsigned short proto, int i)
struct bl_head *	create_bl_head (int owner, int flags, struct bl_rule *head, struct bl_rule *tail, str *name)
static void	delete_expired (struct bl_head *elem, unsigned int ticks)
static void	delete_expired_routine (unsigned int ticks, void *param)
void	destroy_black_lists (void)
struct bl_head *	get_bl_head_by_name (str *name)
int	init_black_lists (void)
static int	ip_class_compare (struct net *net1, struct net *net2)
int	mark_for_search (struct bl_head *list, int unsigned set)
static struct mi_root *	mi_print_blacklists (struct mi_root *cmd, void *param)
int	preinit_black_lists (void)
static int	reload_permanent_list (struct bl_rule *first, struct bl_rule *last, struct bl_head *head)
void	reset_bl_markers (void)
static void	rm_dups (struct bl_head *head, struct bl_rule **first, struct bl_rule **last)
Variables
static unsigned int	bl_default_marker = 0
static unsigned int	bl_marker = 0
static struct bl_head *	blst_heads = 0
static unsigned int	max_heads = 8*sizeof(bl_marker)
static mi_export_t	mi_bl_cmds []
static unsigned int	no_shm = 1
static unsigned int	used_heads = 0

---

Detailed Description

Kamailio Blacklist functions.

Definition in file blacklists.c.

---

Function Documentation

int add_list_to_head	(	struct bl_head *	head,
		struct bl_rule *	first,
		struct bl_rule *	last,
		int	truncate,
		int	expire_limit
	)

Definition at line 488 of file blacklists.c.

References BL_DO_EXPIRE, BL_READONLY_LIST, bl_head::count_read, bl_head::count_write, bl_rule::expire_end, bl_head::first, bl_head::flags, get_ticks(), bl_head::last, _str::len, LM_CRIT, LM_DBG, bl_head::lock, bl_head::name, bl_rule::next, NULL, reload_permanent_list(), rm_dups(), _str::s, and sleep_us().

Referenced by get_next_su().

int add_rule_to_list	(	struct bl_rule **	first,
		struct bl_rule **	last,
		struct net *	ip_net,
		str *	body,
		unsigned short	port,
		unsigned short	proto,
		int	flags
	)

adds a new rule to a list of rules

Definition at line 339 of file blacklists.c.

References bl_rule::body, bl_rule::expire_end, bl_rule::flags, ip_class_compare(), bl_rule::ip_net, _str::len, LM_ERR, bl_rule::next, no_shm, NULL, pkg_malloc, bl_rule::port, bl_rule::proto, _str::s, and shm_malloc().

Referenced by get_next_su(), and init_black_lists().

int check_against_blacklist	(	struct ip_addr *	ip,
		str *	text,
		unsigned short	port,
		unsigned short	proto
	)

Definition at line 665 of file blacklists.c.

References bl_marker, check_against_rule_list(), and used_heads.

Referenced by check_blacklists().

static int check_against_rule_list	(	struct ip_addr *	ip,
		str *	text,
		unsigned short	port,
		unsigned short	proto,
		int	i
	)			[inline, static]

Definition at line 618 of file blacklists.c.

References BL_READONLY_LIST, BLR_APPLY_CONTRARY, bl_rule::body, bl_head::count_read, bl_rule::flags, bl_rule::ip_net, LM_DBG, lock, matchnet(), bl_head::name, bl_rule::next, NULL, bl_rule::port, bl_rule::proto, PROTO_NONE, _str::s, and sleep_us().

Referenced by check_against_blacklist().

struct bl_head* create_bl_head	(	int	owner,
		int	flags,
		struct bl_rule *	head,
		struct bl_rule *	tail,
		str *	name
	)			[read]

Definition at line 154 of file blacklists.c.

References BL_BY_DEFAULT, bl_default_marker, BL_DO_EXPIRE, BL_READONLY_LIST, bl_head::first, bl_head::flags, get_bl_head_by_name(), bl_head::last, _str::len, LM_CRIT, LM_ERR, lock, max_heads, bl_head::name, no_shm, NULL, bl_head::owner, pkg_malloc, _str::s, shm_free, shm_malloc(), and used_heads.

Referenced by init_black_lists(), and resolv_blacklist_init().

static void delete_expired	(	struct bl_head *	elem,
		unsigned int	ticks
	)			[inline, static]

Definition at line 250 of file blacklists.c.

References bl_head::count_read, bl_head::count_write, bl_rule::expire_end, bl_head::first, bl_head::last, bl_head::lock, bl_rule::next, NULL, shm_free, and sleep_us().

Referenced by delete_expired_routine().

static void delete_expired_routine	(	unsigned int	ticks,
		void *	param
	)			[static]

Definition at line 308 of file blacklists.c.

References BL_DO_EXPIRE, delete_expired(), and used_heads.

Referenced by init_black_lists().

void destroy_black_lists

(

void

)

Definition at line 218 of file blacklists.c.

References bl_head::first, bl_head::last, lock, bl_rule::next, no_shm, NULL, shm_free, and used_heads.

Referenced by cleanup().

struct bl_head* get_bl_head_by_name

(

str *

name

)

[read]

Definition at line 573 of file blacklists.c.

References _str::len, bl_head::name, NULL, _str::s, and used_heads.

Referenced by create_bl_head(), and fix_actions().

int init_black_lists

(

void

)

Definition at line 81 of file blacklists.c.

References add_rule_to_list(), bl_default_marker, bl_rule::body, create_bl_head(), delete_expired_routine(), bl_head::first, bl_rule::flags, bl_rule::ip_net, LM_CRIT, LM_ERR, max_heads, bl_head::name, bl_rule::next, no_shm, NULL, bl_head::owner, pkg_free, bl_rule::port, bl_rule::proto, register_mi_mod(), register_timer(), shm_malloc(), and used_heads.

Referenced by main().

static int ip_class_compare	(	struct net *	net1,
		struct net *	net2
	)			[inline, static]

Definition at line 320 of file blacklists.c.

References ip_addr::addr32, ip_addr::af, net::ip, ip_addr::len, net::mask, and ip_addr::u.

Referenced by add_rule_to_list(), and rm_dups().

int mark_for_search	(	struct bl_head *	list,
		int unsigned	set
	)

Definition at line 588 of file blacklists.c.

References bl_marker, and used_heads.

Referenced by do_action().

static struct mi_root * mi_print_blacklists	(	struct mi_root *	cmd,
		void *	param
	)			[static, read]

Definition at line 679 of file blacklists.c.

References add_mi_attr(), add_mi_node_child(), BL_DO_EXPIRE, BL_READONLY_LIST, bl_rule::body, bl_head::count_read, bl_rule::expire_end, bl_rule::flags, free_mi_tree(), init_mi_tree(), int2str(), net::ip, ip_addr2a(), bl_rule::ip_net, _str::len, len, lock, net::mask, MI_DUP_VALUE, MI_OK_LEN, MI_OK_S, bl_head::name, bl_rule::next, mi_root::node, NULL, bl_rule::port, bl_rule::proto, _str::s, sleep_us(), and used_heads.

int preinit_black_lists

(

void

)

Definition at line 64 of file blacklists.c.

References LM_ERR, max_heads, NULL, pkg_malloc, and used_heads.

Referenced by main().

static int reload_permanent_list	(	struct bl_rule *	first,
		struct bl_rule *	last,
		struct bl_head *	head
	)			[inline, static]

Definition at line 450 of file blacklists.c.

References bl_head::count_read, bl_head::count_write, bl_head::first, bl_head::last, bl_head::lock, bl_rule::next, shm_free, and sleep_us().

Referenced by add_list_to_head().

void reset_bl_markers

(

void

)

Definition at line 611 of file blacklists.c.

References bl_default_marker, and bl_marker.

Referenced by run_top_route().

static void rm_dups	(	struct bl_head *	head,
		struct bl_rule **	first,
		struct bl_rule **	last
	)			[inline, static]

Definition at line 410 of file blacklists.c.

References bl_rule::body, bl_head::first, bl_rule::flags, ip_class_compare(), bl_rule::ip_net, _str::len, bl_rule::next, no_shm, NULL, pkg_free, bl_rule::port, bl_rule::proto, _str::s, and shm_free.

Referenced by add_list_to_head().

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Variable Documentation

unsigned int bl_default_marker = 0 [static]

Definition at line 46 of file blacklists.c.

Referenced by create_bl_head(), init_black_lists(), and reset_bl_markers().

unsigned int bl_marker = 0 [static]

Definition at line 45 of file blacklists.c.

Referenced by check_against_blacklist(), mark_for_search(), and reset_bl_markers().

struct bl_head* blst_heads = 0 [static]

Definition at line 44 of file blacklists.c.

unsigned int max_heads = 8*sizeof(bl_marker) [static]

Definition at line 48 of file blacklists.c.

Referenced by create_bl_head(), init_black_lists(), and preinit_black_lists().

mi_export_t mi_bl_cmds[] [static]

Initial value:

 {
   { "list_blacklists", mi_print_blacklists,  MI_NO_INPUT_FLAG  ,  0,  0 },
   { 0, 0, 0, 0, 0}
}

Definition at line 57 of file blacklists.c.

unsigned int no_shm = 1 [static]

Definition at line 50 of file blacklists.c.

Referenced by add_rule_to_list(), create_bl_head(), destroy_black_lists(), init_black_lists(), and rm_dups().

unsigned int used_heads = 0 [static]

Definition at line 49 of file blacklists.c.

Referenced by check_against_blacklist(), create_bl_head(), delete_expired_routine(), destroy_black_lists(), get_bl_head_by_name(), init_black_lists(), mark_for_search(), mi_print_blacklists(), and preinit_black_lists().