[SR-Users] Reg. shared library linking during compiling time

[Daniel-Constantin Mierla]

Hello,

some guidelines to write a new module are available at:
- http://www.asipto.com/pub/kamailio-devel-guide/#c16_devel_new_module

Cheers,
Daniel

On 2/8/13 8:06 AM, kiran bhosale wrote:
> madhumanjusha at integramicro.com wrote:
>> Hello All,
>> Please find below steps...and kindly let me know the error solution.
>>
>> STEP 1::
>> Under modules I created a directory name b2bentities
>> /root/kamailio-3.3.2/modules/b2bentities
>> $ls
>> b2bentities.so  b2b_server.c  b2b_server.d  b2b_server.h b2b_server.o
>> dialog.h  librpath.lst  makecfg.lst  Makefile
>>
>> In b2b_server.h
>> #ifndef SERVER_H
>> #define SERVER_H
>> #endif
>>
>> int b2b_dlg_reply();
>>
>>
>>
>> In b2b_server.c I wrote following code ::
>>
>> int b2b_dlg_reply()
>> {
>>         LOG(L_INFO,"Hello am in b2bua module\n");
>>         return 0;
>> }
>>
>> Also,I added below code to the same file as per steps given in kamailio
>> server's developer's guide.
>> In developer's guide,they told to initialize parameters as per module's
>> requirement but i made them all empty and null...
>> for example
>> static int mod_init(void)
>> {
>>         LOG(L_INFO,"IN mod_init\n");
>>         return 0;
>> }
>>
>> static cmd_export_t commands[] = {
>> };
>>
>>
>> static param_export_t params[]={
>> };
>>
>> struct module_exports exports = {
>>     "b2bentities",    // module name
>>     NULL, // dlopen flags
>>     commands,        // exported functions
>>     params,      // exported parameters
>>     NULL,            // exported statistics
>>     NULL,            // exported MI functions
>>     NULL,            // exported pseudo-variables
>>     NULL,            // extra processes
>>     mod_init,        // module init function (before fork. kids will 
>> inherit)
>>     NULL,            // reply processing function
>>     NULL,            // destroy function
>>     child_init       // child init function
>> };
>>
>>
>> STEP 2::
>> In kamailio core
>> file : In receive.c
>> Method Name : In receive_msg
>>
>> i did this way...
>>
>> In receive.c add follow piece of code::
>>
>> #include "modules/b2bentities/b2b_server.h"
>>
>> int receive_msg(....)
>> {
>>    /*my code*/
>>     int b2b_ret;
>>         int (*ptr)();
>>         ptr= b2b_dlg_reply;
>>         if(msg->REQ_METHOD!=METHOD_REGISTER)
>>         {
>>
>>                 b2b_ret=(*ptr)();
>>                 if(b2b_ret!=0)
>>                 {
>>                         LOG(L_INFO,"B2B Dialogue reply function 
>> failed\n");
>>                         exit(1);
>>                 }
>>                 else
>>                 {
>>                         LOG(L_INFO,"B2B Dialogue reply function 
>> success\n");
>>                         exit(1);
>>                 }
>>
>>         }
>>
>>
>> }
>>
>> STEP 3::
>> I even added kamailio.cfg  load module "b2bentities.so"
>>
>>
>>
>> STEP 4::
>> Final step,when I do make all.....
>> its giving me the following error ::
>> [root at kamserver kamailio-3.3.2]# make all
>> CC (gcc) [kamailio]             receive.o
>> LD (gcc) [kamailio]             kamailio
>> receive.o: In function `receive_msg':
>> /root/kamailio-3.3.2/receive.c:163: undefined reference to 
>> `b2b_dlg_reply'
>> collect2: ld returned 1 exit status
>> make: *** [kamailio] Error 1
>>
>>
>>
>> My doubt:
>> Where should my b2bentities.so should be linked during compiling time?
>> Please tell me the steps for it.
>>
>> Thanks & Regards,
>> Manjusha A.
>> Integra Micro Software Services (P) Ltd.
>>
>>
>>
>>
>>
>>
>>
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>>
> seems that you want to create your custom module. have you checked the 
> makefile of your module. in order to develop the custom module just 
> copy the existing module and make relevant changes there. this is 
> genuine way . for this u need to include makefile.lst ,Makefile in 
> your module. so best way is to copy the smallest module (e.g.) pdb 
> module and make changes.
>
>
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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio World Conference, April 16-17, 2013, Berlin
  - http://conference.kamailio.com -