trigger.h File Reference

Execute scripts when a server event occurs. More...

#include <freeradius-devel/server/cf_util.h>
#include <freeradius-devel/server/module.h>
#include <freeradius-devel/server/request.h>
#include <freeradius-devel/unlang/interpret.h>
#include <freeradius-devel/util/pair.h>
#include <freeradius-devel/util/talloc.h>

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Typedefs
typedef int(*	fr_trigger_worker_t) (request_t *request, module_method_t process, void *ctx)

Functions
int	trigger (unlang_interpret_t *intp, CONF_SECTION const *cs, char const *name, bool rate_limit, fr_pair_list_t *args))
	Execute a trigger - call an executable to process an event.
void	trigger_args_afrom_server (TALLOC_CTX *ctx, fr_pair_list_t *list, char const *server, uint16_t port)
	Create trigger arguments to describe the server the pool connects to.
bool	trigger_enabled (void)
	Return whether triggers are enabled.
int	trigger_init (CONF_SECTION const *cs)

Detailed Description

Execute scripts when a server event occurs.

Id

de2c36ed9fefd90863c15814de366d55619fbb6d

Copyright

2015 The FreeRADIUS server project

Definition in file trigger.h.

Typedef Documentation

fr_trigger_worker_t

typedef int(* fr_trigger_worker_t) (request_t *request, module_method_t process, void *ctx)

Definition at line 49 of file trigger.h.

Function Documentation

trigger()

int trigger	(	unlang_interpret_t *	intp,
		CONF_SECTION const *	cs,
		char const *	name,
		bool	rate_limit,
		fr_pair_list_t *	args
	)

Execute a trigger - call an executable to process an event.

A trigger ties a state change (e.g. connection up) in a module to an action (e.g. send an SNMP trap) defined in raqddb/triggers.conf or in the trigger section of a module, and can be created with one call to trigger().

The trigger function expands the configuration item, and runs the given function (exec, sql insert, etc.) asynchronously, allowing the server to keep processing packets while the action is being taken.

The name of each trigger is based on the module or portion of the server which runs the trigger, and is usually taken from the state when the module has a state change.

Triggers are separate from logs, because log messages are generally informational, are not time sensitive, and usually require log files to be parsed and filtered in order to find relevant information.

In contrast, triggers are something specific which the administrator needs to be notified about immediately and can't wait to post-process a log file.

Note

Calls to this function will be ignored if trigger_init has not been called.

Parameters

[in]	intp	Interpreter to run the trigger with. If this is NULL the trigger will be executed synchronously.
[in]	cs	to search for triggers in. If cs is not NULL, the portion after the last '.' in name is used for the trigger. If cs is NULL, the entire name is used to find the trigger in the global trigger section.
[in]	name	the path relative to the global trigger section ending in the trigger name e.g. module.ldap.pool.start.
[in]	rate_limit	whether to rate limit triggers.
[in]	args	to make available via the %trigger(<arg>) xlat.

Returns

• 0 on success.
• -1 on failure.

Definition at line 143 of file trigger.c.

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trigger_args_afrom_server()

void trigger_args_afrom_server	(	TALLOC_CTX *	ctx,
		fr_pair_list_t *	list,
		char const *	server,
		uint16_t	port
	)

Create trigger arguments to describe the server the pool connects to.

Note

trigger_init must be called before calling this function, else it will return NULL.

Parameters

[in]	ctx	to allocate fr_pair_t s in.
[out]	list	to append Pool-Server and Pool-Port pairs to
[in]	server	we're connecting to.
[in]	port	on that server.

Definition at line 397 of file trigger.c.

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trigger_enabled()

bool trigger_enabled

(

void

)

Return whether triggers are enabled.

Definition at line 94 of file trigger.c.

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trigger_init()

int trigger_init

(

CONF_SECTION const *

cs

)

Definition at line 492 of file trigger.c.

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