cr_rule.c File Reference

Contains the functions to manage routing rule data.

Module; CARRIERROUTE :: The Kamailio carrierroute Module.

#include "../../ut.h"
#include "cr_rule.h"

Include dependency graph for cr_rule.c:

Go to the source code of this file.

Functions

int add_backup_rule (struct route_rule *rule, struct route_rule *backup)

struct failure_route_rule * add_failure_route_rule (struct failure_route_rule **frr_head, const str *prefix, const str *host, const str *reply_code, flag_t flags, flag_t mask, const int next_domain, const str *comment)

struct route_flags * add_route_flags (struct route_flags **rf_head, const flag_t flags, const flag_t mask)

int add_route_rule (struct route_flags *rf, const str *prefix, int max_targets, double prob, const str *rewrite_hostpart, int strip, const str *rewrite_local_prefix, const str *rewrite_local_suffix, int status, int hash_index, int backup, int *backed_up, const str *comment)

void destroy_failure_route_rule (struct failure_route_rule *frr)

void destroy_route_flags (struct route_flags *rf)

void destroy_route_rule (struct route_rule *rr)

static int failure_rule_prio_cmp (struct failure_route_rule *frr1, struct failure_route_rule *frr2)

struct route_rule * find_auto_backup (struct route_flags *rf, struct route_rule *rule)

struct route_rule * find_rule_by_hash (struct route_flags *rf, int hash)

struct route_rule * find_rule_by_host (struct route_flags *rf, str *host)

int remove_backed_up (struct route_rule *rule)

Detailed Description

Contains the functions to manage routing rule data.

Module; CARRIERROUTE :: The Kamailio carrierroute Module.

Definition in file cr_rule.c.

Function Documentation

int add_backup_rule	(	struct route_rule *	rule,
		struct route_rule *	backup
	)

Definition at line 444 of file cr_rule.c.

References route_rule::backed_up, route_rule::backup, route_rule::hash_index, route_rule_p_list::hash_index, LM_ERR, route_rule_p_list::next, NULL, route_rule_p_list::rr, shm_malloc(), SHM_MEM_ERROR, and route_rule::status.

Referenced by update_route_data_recursor().

struct failure_route_rule* add_failure_route_rule	(	struct failure_route_rule **	frr_head,
		const str *	prefix,
		const str *	host,
		const str *	reply_code,
		flag_t	flags,
		flag_t	mask,
		const int	next_domain,
		const str *	comment
	)			`[read]`

Adds a failure route rule to rule list. prefix, host, reply_code, and comment must not contain NULL pointers.

Parameters:

	frr_head	pointer to the head of the failure route rule list, might be changed during insert
	prefix	the whole scan prefix
	host	the hostname last tried
	reply_code	the reply code
	flags	user defined flags
	mask	mask for user defined flags
	next_domain	continue routing with this domain
	comment	a comment for the route rule

Returns:: pointer to the failure_route_rul struct on success, NULL on failure.

See also:: add_failure_route_to_tree()

Definition at line 339 of file cr_rule.c.

References failure_route_rule::comment, destroy_failure_route_rule(), failure_rule_prio_cmp(), failure_route_rule::flags, failure_route_rule::host, failure_route_rule::mask, failure_route_rule::next, failure_route_rule::next_domain, NULL, failure_route_rule::reply_code, shm_malloc(), SHM_MEM_ERROR, and shm_str_dup().

Referenced by add_failure_route_to_tree().

struct route_flags* add_route_flags	(	struct route_flags **	rf_head,
		const flag_t	flags,
		const flag_t	mask
	)			`[read]`

Try to find a matching route_flags struct in rt and return it, add it if not found.

Parameters:

	rf_head	pointer to the head of the route flags list, might be changed during insert.
	flags	user defined flags
	mask	mask for user defined flags

Returns:: pointer to the route_flags struct on success, NULL on failure.

Definition at line 206 of file cr_rule.c.

References route_flags::flags, route_flags::mask, route_flags::next, NULL, shm_malloc(), and SHM_MEM_ERROR.

Referenced by add_route_to_tree().

int add_route_rule	(	struct route_flags *	rf,
		const str *	prefix,
		int	max_targets,
		double	prob,
		const str *	rewrite_hostpart,
		int	strip,
		const str *	rewrite_local_prefix,
		const str *	rewrite_local_suffix,
		int	status,
		int	hash_index,
		int	backup,
		int *	backed_up,
		const str *	comment
	)

Adds a route rule to rf. prefix, rewrite_hostpart, rewrite_local_prefix, rewrite_local_suffix, and comment must not contain NULL pointers.

Parameters:

	rf	the current route_flags struct
	prefix	the whole scan prefix
	max_targets	the number of targets
	prob	the weight of the rule
	rewrite_hostpart	the rewrite_host of the rule
	strip	the strip value of the rule
	rewrite_local_prefix	the rewrite prefix
	rewrite_local_suffix	the rewrite suffix
	status	the status of the rule
	hash_index	the hash index of the rule
	backup	indicates if the route is backed up by another. only useful if status==0, if set, it is the hash value of another rule
	backed_up	an NULL-termintated array of hash indices of the route for which this route is backup
	comment	a comment for the route rule

Returns:: 0 on success, -1 on failure

See also:: add_route_to_tree()

Definition at line 59 of file cr_rule.c.

References route_rule::backed_up, route_rule::backup, route_rule::comment, destroy_route_rule(), route_rule_p_list::hash_index, route_rule::hash_index, route_rule::host, LM_INFO, route_rule::local_prefix, route_rule::local_suffix, route_flags::max_targets, route_rule::next, route_rule_p_list::next, NULL, route_rule::orig_prob, route_rule::prefix, route_rule::prob, route_flags::rule_list, shm_malloc(), SHM_MEM_ERROR, shm_str_dup(), route_rule::status, and route_rule::strip.

Referenced by add_route_to_tree().

void destroy_failure_route_rule ( struct failure_route_rule * frr )

Destroys failure route rule frr by freeing all its memory.

Parameters:

frr

route rule to be destroyed

Definition at line 400 of file cr_rule.c.

References failure_route_rule::comment, failure_route_rule::host, failure_route_rule::prefix, failure_route_rule::reply_code, _str::s, and shm_free.

Referenced by add_failure_route_rule(), and destroy_failure_route_rule_list().

void destroy_route_flags ( struct route_flags * rf )

Destroys route_flags in shared memory by freing all its memory.

Parameters:

rf

route_flags struct to be destroyed

Definition at line 251 of file cr_rule.c.

References destroy_route_rule(), route_rule::next, NULL, route_flags::rule_list, route_flags::rules, and shm_free.

Referenced by destroy_route_flags_list().

void destroy_route_rule ( struct route_rule * rr )

Destroys route rule rr by freeing all its memory.

Parameters:

rr

route rule to be destroyed

Definition at line 166 of file cr_rule.c.

References route_rule::backed_up, route_rule::backup, route_rule::comment, route_rule::host, route_rule::local_prefix, route_rule::local_suffix, route_rule_p_list::next, route_rule::prefix, _str::s, and shm_free.

Referenced by add_route_rule(), destroy_route_flags(), and update_route_data_recursor().

static int failure_rule_prio_cmp	(	struct failure_route_rule *	frr1,
		struct failure_route_rule *	frr2
	)			`[static]`

Compares the priority of two failure route rules.

Parameters:

	frr1	first failure rule
	frr2	second failure rule

Returns:: 0 if frr1 and frr2 have the same priority, -1 if frr1 has higher priority than frr2, 1 if frr1 has lower priority than frr2.

See also:: add_failure_route_to_tree()

Definition at line 277 of file cr_rule.c.

References failure_route_rule::host, _str::len, failure_route_rule::mask, failure_route_rule::reply_code, and _str::s.

Referenced by add_failure_route_rule().

struct route_rule* find_auto_backup	(	struct route_flags *	rf,
		struct route_rule *	rule
	)			`[read]`

Definition at line 516 of file cr_rule.c.

References route_rule::backed_up, route_rule::hash_index, route_rule::next, NULL, route_flags::rule_list, and route_rule::status.

Referenced by update_route_data_recursor().

struct route_rule* find_rule_by_hash	(	struct route_flags *	rf,
		int	hash
	)			`[read]`

Definition at line 418 of file cr_rule.c.

References route_rule::hash_index, route_rule::next, NULL, and route_flags::rule_list.

Referenced by fixup_rule_backup(), and update_route_data_recursor().

struct route_rule* find_rule_by_host	(	struct route_flags *	rf,
		str *	host
	)			`[read]`

Definition at line 431 of file cr_rule.c.

References route_rule::host, route_rule::next, NULL, route_flags::rule_list, and str_strcmp().

Referenced by update_route_data_recursor().

int remove_backed_up ( struct route_rule * rule )

Definition at line 489 of file cr_rule.c.

References route_rule::backed_up, route_rule::backup, route_rule::hash_index, route_rule_p_list::hash_index, route_rule_p_list::next, NULL, route_rule_p_list::rr, and shm_free.

Referenced by update_route_data_recursor().


Functions
int	add_backup_rule (struct route_rule rule, struct route_rule backup)
struct failure_route_rule *	add_failure_route_rule (struct failure_route_rule *frr_head, const str prefix, const str host, const str reply_code, flag_t flags, flag_t mask, const int next_domain, const str *comment)
struct route_flags *	add_route_flags (struct route_flags **rf_head, const flag_t flags, const flag_t mask)
int	add_route_rule (struct route_flags rf, const str prefix, int max_targets, double prob, const str rewrite_hostpart, int strip, const str rewrite_local_prefix, const str rewrite_local_suffix, int status, int hash_index, int backup, int backed_up, const str *comment)
void	destroy_failure_route_rule (struct failure_route_rule *frr)
void	destroy_route_flags (struct route_flags *rf)
void	destroy_route_rule (struct route_rule *rr)
static int	failure_rule_prio_cmp (struct failure_route_rule frr1, struct failure_route_rule frr2)
struct route_rule *	find_auto_backup (struct route_flags rf, struct route_rule rule)
struct route_rule *	find_rule_by_hash (struct route_flags *rf, int hash)
struct route_rule *	find_rule_by_host (struct route_flags rf, str host)
int	remove_backed_up (struct route_rule *rule)