Fore pca-200E adapter: connect to atm socket

Hi,

I am new. 
I have a PC running freeBSD4.5 with 
Fore 200E adapter. The aim is to build on
top of the ATM HARP socket part of the ss7
stack something like ATM/AAL5/SSCOP/SSCF/MTP3-B... I will only need to have some functionalities for every layer implemented. 
My application will have to use only a fix PVC
value. In my set up I have now loopback the NIC (fiber connects Tx and RX). Through the
atm commands I have set pvc in the card and 
IP address of a not-existing other end host.
When running ping towards the not existing
host I have the expected behaviour with the
route to host found but obviously not 
response. So far so good.

I have now started to use the sample programs reported in the HARP source code and
modified as reported below, to use a fixed
PVC value. I'd like to do a simple client -server application to start practice with the
socket. The client program however doesn't
start because the function connect() returns
the error connect: Invalid argument.
I guess that the values of satm that I pass to
the function connect() are not correct.
Does anyone know what's wrong?
Do you know where I van find some more docs
and examples apart from what is available at
HARP site?

Thanks
Gianluca


* 

* ATM API sample client application 

* 

* This application will open an ATM socket to a server, send a text string 

* in a PDU and then read one PDU from the socket and print its contents. 

* 

*/ 

#include <stdio.h> 

#include <sys/param.h> 

#include <sys/types.h> 

#include <sys/socket.h> 

#include <net/if.h> 

#include <netatm/atm.h> 

#define MAX_LEN 4096 /* Maximum PDU length */ 

#define MY_APPL "Client" 


Atm_addr_pvc pvc_addr = {0,0,0,56}; //vpi 0, vci 56 

static char message[] = "A message from the client"; 

main(argc, argv) 

int argc; 

char **argv; 

{ 

struct sockaddr_atm satm; 

struct t_atm_aal5 aal5; 

struct t_atm_net_intf netintf; 

struct t_atm_app_name appname; 

char buffer[MAX_LEN+1]; 

int s, n, optlen; 

/* 

* Create socket 

*/ 

s = socket(AF_ATM, SOCK_SEQPACKET, ATM_PROTO_AAL5); 


if (s < 0) { 

perror("socket"); 

exit(1); 

} 

/* 

* Set up destination SAP 

*/ 

bzero((caddr_t) &satm, sizeof(satm)); 

satm.satm_family = AF_ATM; 

#if (defined(BSD) && (BSD >= 199103)) 

satm.satm_len = sizeof(satm); 

#endif 

/* PVC address */ 

satm.satm_addr.t_atm_sap_addr.SVE_tag_addr = T_ATM_PRESENT; 

satm.satm_addr.t_atm_sap_addr.SVE_tag_selector = T_ATM_PRESENT; 

satm.satm_addr.t_atm_sap_addr.address_format = T_ATM_PVC_ADDR; 

satm.satm_addr.t_atm_sap_addr.address_length = sizeof(pvc_addr); 

bcopy((caddr_t)&pvc_addr, 

(caddr_t)satm.satm_addr.t_atm_sap_addr.address, 

sizeof(Atm_addr_pvc)); 




/* 

* Set up connection parameters 

*/ 


aal5.forward_max_SDU_size = MAX_LEN; 

aal5.backward_max_SDU_size = MAX_LEN; 

aal5.SSCS_type = T_ATM_NULL; 

optlen = sizeof(aal5); 

if (setsockopt(s, T_ATM_SIGNALING, T_ATM_AAL5, (caddr_t)&aal5, 

optlen) < 0) { 

perror("setsockopt(aal5)"); 

exit(1); 

} 


strncpy(netintf.net_intf, "ni0", IFNAMSIZ); 

optlen = sizeof(netintf); 

if (setsockopt(s, T_ATM_SIGNALING, T_ATM_NET_INTF, (caddr_t)&netintf, 

optlen) < 0) { 

perror("setsockopt(net_intf)"); 

exit(1); 

} 


strncpy(appname.app_name, MY_APPL, T_ATM_APP_NAME_LEN); 

optlen = sizeof(appname); 

if (setsockopt(s, T_ATM_SIGNALING, T_ATM_APP_NAME, (caddr_t)&appname, 

optlen) < 0) { 

perror("setsockopt(app_name)"); 

exit(1); 

} 

/* 

* Connect the socket 

*/ 


if (connect(s, (struct sockaddr *) &satm, sizeof(satm)) < 0) { 

perror("connect"); 

exit(1); 

} 

/* 

* Exchange message with peer 

*/ 

if (write(s, message, sizeof(message)) != sizeof(message)) { 

perror("write"); 

exit(1); 

} 

if ((n = read(s, buffer, MAX_LEN)) < 0) { 

perror("read"); 

exit(1); 

} 

buffer[n] = '\0'; 

printf("received %d bytes: <%s>\n", n, buffer); 

/* 

* Finish up 

*/ 

if (close(s) < 0) { 

perror("close"); 

exit(1); 

} 

exit(0); 

} 


 
-- 

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