conf.c File Reference

#include "conf.h"
#include "../../mem/mem.h"
#include "../../mem/shm_mem.h"
#include "../../sr_module.h"
#include "../../proxy.h"
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

Include dependency graph for conf.c:

Go to the source code of this file.

Data Structures

struct fwd_setting

Defines

#define BUFSIZE 1000

Enumerations

enum { sfidx_request = 0, sfidx_reply, sfilter_cnt }

Functions

void conf_destroy (void)

Destroy configuration.

int conf_init (int max_id)

Initialize configuration.

struct proxy_l * conf_needs_forward (struct sip_msg *msg, int id)

Checks forwarding is needed.

int conf_parse_filter (char *settings)

Parses a configuration string for the filter Parses a configuration string for switch settings and updates the configuration structure.

int conf_parse_proxy (char *settings)

Parses a configuration string for proxy settings Parses a configuration string for proxy settings and updates the configuration structure.

int conf_parse_switch (char *settings)

Parses configuration string for the switch Parses a configuration string for switch settings and updates the configuration structure.

int conf_show (struct mi_root *rpl_tree)

Output configuration in FIFO format.

int conf_str2id (char *id_str)

Converts string to integer and checks for validity.

static int conf_str2int (char *s)

Converts a string to integer.

static int filter_methods_contains_request (int id, char *method, int method_len)

Checks if method string is in filter_methods.

static void remove_spaces (char *s)

Removes white spaces and new lines from s.

static int update_filter (int id, char *flist)

Updates filter configuration. Updates filter configuration. If filter_methods is not NULL, memory is freed. If filter methods are found, memory for the string is allocated, otherwise filter_methods is set to NULL.

static int update_proxy (int id, char *host_str, char *port_str)

static int update_switch (int id, char *param_str)

Updates switch configuration.

Variables

static int fwd_max_id = 0

static struct fwd_setting * fwd_settings = NULL

static int sfilter_mask [sfilter_cnt] = { 1, 2 }

static char * sfilter_str [sfilter_cnt]

Define Documentation

#define BUFSIZE 1000

Definition at line 37 of file conf.c.

Referenced by conf_show(), and update_filter().

Enumeration Type Documentation

anonymous enum

Enumerator:

sfidx_request
sfidx_reply
sfilter_cnt

Definition at line 41 of file conf.c.

Function Documentation

void conf_destroy ( void )

Destroy configuration.

Definition at line 556 of file conf.c.

References fwd_setting::active, free_shm_proxy(), fwd_max_id, id, proxy, and shm_free.

int conf_init ( int max_id )

Initialize configuration.

Parameters:

max_id

number of configuration statements

Returns:: 0 on success, -1 on failure

Definition at line 539 of file conf.c.

References fwd_max_id, NULL, shm_malloc(), and SHM_MEM_ERROR.

Referenced by mod_init().

struct proxy_l* conf_needs_forward	(	struct sip_msg *	msg,
		int	id
	)			`[read]`

Checks forwarding is needed.

Parameters:

	msg	the SIP message to be forwarded
	id	use configuration with this ID when checking

Returns:: pointer to proxy structure of destination if forwarding is needed, NULL otherwise

Definition at line 508 of file conf.c.

References filter_methods_contains_request(), sip_msg::first_line, NULL, fwd_setting::proxy, msg_start::request, sfidx_reply, sfidx_request, sfilter_mask, SIP_REPLY, SIP_REQUEST, msg_start::type, and msg_start::u.

Referenced by utils_forward().

int conf_parse_filter ( char * settings )

Parses a configuration string for the filter Parses a configuration string for switch settings and updates the configuration structure.

Parameters:

settings

The configuration string in the following form: <id>=<filter>[:<filter>]...[,<id>=<filter>[:<filter>]...]...

Returns:: 1 on success, -1 otherwise

Definition at line 398 of file conf.c.

References conf_str2id(), len, LM_ERR, NULL, pkg_free, pkg_malloc, PKG_MEM_ERROR, remove_spaces(), and update_filter().

Referenced by forward_fifo_filter(), and mod_init().

int conf_parse_proxy ( char * settings )

Parses a configuration string for proxy settings Parses a configuration string for proxy settings and updates the configuration structure.

Parameters:

settings,:

The configuration string in the following form: <id>=<host>:<port>[,<id>=<host>:<port>]...

Returns:: : 1 on success, -1 otherwise

Definition at line 441 of file conf.c.

References conf_str2id(), len, LM_ERR, NULL, pkg_free, pkg_malloc, PKG_MEM_ERROR, remove_spaces(), and update_proxy().

Referenced by forward_fifo_proxy(), and mod_init().

int conf_parse_switch ( char * settings )

Parses configuration string for the switch Parses a configuration string for switch settings and updates the configuration structure.

Parameters:

settings

the configuration string in the following form: <id>=<switch>[,<id>=<switch>]...

Returns:: 1 on success, -1 otherwise

Definition at line 298 of file conf.c.

References conf_str2id(), len, LM_ERR, NULL, pkg_free, pkg_malloc, PKG_MEM_ERROR, remove_spaces(), and update_switch().

Referenced by forward_fifo_switch(), and mod_init().

int conf_show ( struct mi_root * rpl_tree )

Output configuration in FIFO format.

Parameters:

rpl_tree

FIFO root

Returns:: 0 on success, -1 on failure

Definition at line 340 of file conf.c.

References fwd_setting::active, addf_mi_node_child(), buf, BUFSIZE, fwd_max_id, id, proxy_l::name, mi_root::node, NULL, proxy_l::port, fwd_setting::proxy, _str::s, sfilter_cnt, sfilter_mask, sfilter_str, and snprintf.

Referenced by forward_fifo_list().

int conf_str2id ( char * id_str )

Converts string to integer and checks for validity.

Todo:: check if we can use the functions from ut.h params: id_str: ID as string to be converted to int. returns: >=0 on success -1 otherwise

Definition at line 121 of file conf.c.

References conf_str2int(), fwd_max_id, and LM_ERR.

Referenced by conf_parse_filter(), conf_parse_proxy(), and conf_parse_switch().

static int conf_str2int ( char * s ) [static]

Converts a string to integer.

Todo:: check if we can use the functions from ut.h params: s: The string to be converted to int. returns: >=0 on success -1 otherwise

Definition at line 96 of file conf.c.

References LM_ERR, and NULL.

Referenced by conf_str2id(), and update_proxy().

static int filter_methods_contains_request	(	int	id,
		char *	method,
		int	method_len
	)			`[static]`

Checks if method string is in filter_methods.

Parameters:

	id	use configuration with this ID when checking
	method	method string to be searched for
	method_len	length of method string

Returns:: 1 if method is found in filter_methods, 0 otherwise

Definition at line 486 of file conf.c.

References fwd_setting::filter_methods, and NULL.

Referenced by conf_needs_forward().

static void remove_spaces ( char * s ) [static]

Removes white spaces and new lines from s.

Todo:: check if we can use the functions from ut.h Removes white spaces and new lines from s, the contents of s are modified.

Parameters:

s

the string.

Definition at line 75 of file conf.c.

Referenced by conf_parse_filter(), conf_parse_proxy(), and conf_parse_switch().

static int update_filter	(	int	id,
		char *	flist
	)			`[static]`

Updates filter configuration. Updates filter configuration. If filter_methods is not NULL, memory is freed. If filter methods are found, memory for the string is allocated, otherwise filter_methods is set to NULL.

Parameters:

	id	update the configuration with this ID.
	flist	a list of filter names.

Returns:: 0 on success, -1 otherwise

Definition at line 170 of file conf.c.

References buf, BUFSIZE, fwd_setting::filter_methods, len, LM_ERR, NULL, fwd_setting::sfilter, sfilter_cnt, sfilter_mask, sfilter_str, shm_free, shm_malloc(), SHM_MEM_ERROR, and snprintf.

Referenced by conf_parse_filter().

static int update_proxy	(	int	id,
		char *	host_str,
		char *	port_str
	)			`[static]`

Updates proxy configuration

Parameters:

	id	update the configuration with this ID.
	host_str	the destination host.
	port_str	the port number as string.

Returns:: 0 on success, -1 otherwise

Definition at line 240 of file conf.c.

References conf_str2int(), free_shm_proxy(), _str::len, LM_ERR, mk_shm_proxy(), NULL, port, PROTO_UDP, fwd_setting::proxy, proxy, _str::s, shm_free, shm_malloc(), and SHM_MEM_ERROR.

Referenced by conf_parse_proxy().

static int update_switch	(	int	id,
		char *	param_str
	)			`[static]`

Updates switch configuration.

Parameters:

	id	Update the configuration with this ID.
	param_str	can be either "off" or "on".

Returns:: 0 on success, -1 otherwise

Definition at line 140 of file conf.c.

References fwd_setting::active, LM_ERR, and NULL.

Referenced by conf_parse_switch().

Variable Documentation

int fwd_max_id = 0 [static]

Definition at line 66 of file conf.c.

Referenced by conf_destroy(), conf_init(), conf_show(), and conf_str2id().

struct fwd_setting* fwd_settings = NULL [static]

Definition at line 65 of file conf.c.

int sfilter_mask[sfilter_cnt] = { 1, 2 } [static]

special filter masks

Definition at line 48 of file conf.c.

Referenced by conf_needs_forward(), conf_show(), and update_filter().

char* sfilter_str[sfilter_cnt] [static]

Initial value:

 {
   "REQUEST",
   "REPLY"
}

special filter names

Definition at line 51 of file conf.c.

Referenced by conf_show(), and update_filter().


Data Structures
struct	fwd_setting
Defines
#define	BUFSIZE 1000
Enumerations
enum	{ sfidx_request = 0, sfidx_reply, sfilter_cnt }
Functions
void	conf_destroy (void)
	Destroy configuration.
int	conf_init (int max_id)
	Initialize configuration.
struct proxy_l *	conf_needs_forward (struct sip_msg *msg, int id)
	Checks forwarding is needed.
int	conf_parse_filter (char *settings)
	Parses a configuration string for the filter Parses a configuration string for switch settings and updates the configuration structure.
int	conf_parse_proxy (char *settings)
	Parses a configuration string for proxy settings Parses a configuration string for proxy settings and updates the configuration structure.
int	conf_parse_switch (char *settings)
	Parses configuration string for the switch Parses a configuration string for switch settings and updates the configuration structure.
int	conf_show (struct mi_root *rpl_tree)
	Output configuration in FIFO format.
int	conf_str2id (char *id_str)
	Converts string to integer and checks for validity.
static int	conf_str2int (char *s)
	Converts a string to integer.
static int	filter_methods_contains_request (int id, char *method, int method_len)
	Checks if method string is in filter_methods.
static void	remove_spaces (char *s)
	Removes white spaces and new lines from s.
static int	update_filter (int id, char *flist)
	Updates filter configuration. Updates filter configuration. If filter_methods is not NULL, memory is freed. If filter methods are found, memory for the string is allocated, otherwise filter_methods is set to NULL.
static int	update_proxy (int id, char host_str, char port_str)
static int	update_switch (int id, char *param_str)
	Updates switch configuration.
Variables
static int	fwd_max_id = 0
static struct fwd_setting *	fwd_settings = NULL
static int	sfilter_mask [sfilter_cnt] = { 1, 2 }
static char *	sfilter_str [sfilter_cnt]