res_pjsip_empty_info.c File Reference

#include "asterisk.h"
#include <pjsip.h>
#include <pjsip_ua.h>
#include "asterisk/res_pjsip.h"
#include "asterisk/res_pjsip_session.h"
#include "asterisk/module.h"

Include dependency graph for res_pjsip_empty_info.c:

Go to the source code of this file.

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
struct ast_module *	AST_MODULE_SELF_SYM (void)
static int	empty_info_incoming_request (struct ast_sip_session *session, struct pjsip_rx_data *rdata)
static int	load_module (void)
static void	send_response (struct ast_sip_session *session, struct pjsip_rx_data *rdata, int code)
static int	unload_module (void)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "PJSIP Empty INFO Support" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND, .requires = "res_pjsip,res_pjsip_session", }
static const struct ast_module_info *	ast_module_info = &__mod_info
static struct ast_sip_session_supplement	empty_info_supplement

Function Documentation

__reg_module()

static void __reg_module ( void  )

static

Definition at line 86 of file res_pjsip_empty_info.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 86 of file res_pjsip_empty_info.c.

AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM

(

void

)

Definition at line 86 of file res_pjsip_empty_info.c.

empty_info_incoming_request()

static int empty_info_incoming_request ( struct ast_sip_session *  session, struct pjsip_rx_data *  rdata  )

static

Definition at line 47 of file res_pjsip_empty_info.c.

{
    if (!rdata->msg_info.ctype) {
        /* Need to return 200 OK on empty body */
        /* Some SBCs use empty INFO as a KEEPALIVE */
        send_response(session, rdata, 200);
        return 1;
    }
 
    /* Let another module respond */
    return 0;
 
}

References send_response(), and session.

load_module()

static int load_module ( void  )

static

Definition at line 68 of file res_pjsip_empty_info.c.

{
    ast_sip_session_register_supplement(&empty_info_supplement);
    return AST_MODULE_LOAD_SUCCESS;
}

References AST_MODULE_LOAD_SUCCESS, ast_sip_session_register_supplement, and empty_info_supplement.

send_response()

static void send_response ( struct ast_sip_session *  session, struct pjsip_rx_data *  rdata, int  code  )

static

Definition at line 35 of file res_pjsip_empty_info.c.

{
    pjsip_tx_data *tdata;
    pjsip_dialog *dlg = session->inv_session->dlg;
 
    if (pjsip_dlg_create_response(dlg, rdata, code, NULL, &tdata) == PJ_SUCCESS) {
        struct pjsip_transaction *tsx = pjsip_rdata_get_tsx(rdata);
        pjsip_dlg_send_response(dlg, tsx, tdata);
    }
}

References NULL, and session.

Referenced by empty_info_incoming_request().

unload_module()

static int unload_module ( void  )

static

Definition at line 74 of file res_pjsip_empty_info.c.

{
    ast_sip_session_unregister_supplement(&empty_info_supplement);
    return 0;
}

References ast_sip_session_unregister_supplement(), and empty_info_supplement.

Variable Documentation

__mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "PJSIP Empty INFO Support" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND, .requires = "res_pjsip,res_pjsip_session", }

static

Definition at line 86 of file res_pjsip_empty_info.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 86 of file res_pjsip_empty_info.c.

empty_info_supplement

struct ast_sip_session_supplement empty_info_supplement

static

Initial value:

= {
    .method = "INFO",
    .priority = AST_SIP_SUPPLEMENT_PRIORITY_LAST,
    .incoming_request = empty_info_incoming_request,
}

Definition at line 62 of file res_pjsip_empty_info.c.

                                                                 {
    .method = "INFO",
    .priority = AST_SIP_SUPPLEMENT_PRIORITY_LAST,
    .incoming_request = empty_info_incoming_request,
};

Referenced by load_module(), and unload_module().