This program must be compiled with the -D_BSD and -lbsd options. For example, use the cc prog.c -o prog -D_BSD -lbsd command.
/*
* ATM Sockets SVC Client Example
*
* This program opens a opens an best effort SVC and sends data on it.
*
*/
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/ndd_var.h>
#include <sys/atmsock.h>
#define BUFF_SIZE 8192
char buff[BUFF_SIZE];
main(argc, argv)
int argc;
char *argv[];
{
int s; // Socket file descriptor
int error; // Function return code
int i;
sockaddr_ndd_atm_t addr; // ATM Socket Address
unsigned long size; // Size of socket argument
aal_parm_t aal_parm; // AAL parameters
blli_t blli[3]; // Broadband Lower Layer Info
traffic_des_t traffic; // Traffic Descriptor
bearer_t bearer; // Broadband Bearer Capability
int o[20]; // Temorary variable for ATM
// address
cause_t cause; // Cause of failure
// Create a socket in the AF_NDD domain of type SOCK_CONN_DGRAM
// and NDD_PROT_ATM protocol.
s = socket(AF_NDD, SOCK_CONN_DGRAM, NDD_PROT_ATM);
if (s == -1) { // Socket either returns the file descriptor
perror("socket"); // or a -1 to indicate an error.
exit(-1);
}
// The bind command associates this socket with a particular
// ATM device, as specified by addr.sndd_atm_nddname.
addr.sndd_atm_len = sizeof(addr);
addr.sndd_atm_family = AF_NDD;
strcpy( addr.sndd_atm_nddname, "atm0" ); // The name of the ATM device
// which is to be used.
error = bind( s, (struct sockaddr *)&addr, sizeof(addr) );
if (error) { // An error from bind would indicate the
perror("bind"); // requested ATM device is not available.
exit(-1); // Check smitty devices.
} /* endif */
// Set the AAL parameters.
// See the ATM UNI 3.0 for valid combinations.
bzero( aal_parm, sizeof(aal_parm_t) );
aal_parm.length = sizeof(aal_5_t);
aal_parm.aal_type = CM_AAL_5;
aal_parm.aal_info.aal5.fwd_max_sdu_size = 9188;
aal_parm.aal_info.aal5.bak_max_sdu_size = 9188;
aal_parm.aal_info.aal5.mode = CM_MESSAGE_MODE;
aal_parm.aal_info.aal5.sscs_type = CM_NULL_SSCS;
error = setsockopt( s, 0, SO_ATM_AAL_PARM, (void *)&aal_parm,
sizeof(aal_parm_t) );
if (error) {
perror("setsockopt SO_AAL_PARM");
exit(-1);
} /* endif */
// Up to three BLLI may be specified in the setup message.
// If a BLLI contains valid information, its length must be
// set to sizeof(blli_t). Otherwise set its length to 0.
bzero(blli, sizeof(blli_t) * 3);
blli[0].length = sizeof(blli_t); // Only use the first BLLI
blli[1].length = 0;
blli[2].length = 0;
// This call will be delivered to the application that is
// listening for calls that match these two parameters.
blli[0].L2_prot = CM_L2_PROT_USER;
blli[0].L2_info = 1;
// Fields that are not used must be set to NOT_SPECIFIED_B (byte)
blli[0].L2_mode = NOT_SPECIFIED_B;
blli[0].L2_win_size = NOT_SPECIFIED_B;
blli[0].L3_prot = NOT_SPECIFIED_B;
blli[0].L3_mode = NOT_SPECIFIED_B;
blli[0].L3_def_pkt_size = NOT_SPECIFIED_B;
blli[0].L3_pkt_win_size = NOT_SPECIFIED_B;
blli[0].L3_info = NOT_SPECIFIED_B;
blli[0].ipi = NOT_SPECIFIED_B;
blli[0].snap_oui[0] = NOT_SPECIFIED_B;
blli[0].snap_oui[1] = NOT_SPECIFIED_B;
blli[0].snap_oui[2] = NOT_SPECIFIED_B;
blli[0].snap_pid[0] = NOT_SPECIFIED_B;
blli[0].snap_pid[1] = NOT_SPECIFIED_B;
blli[1].length = 0; /* sizeof(blli_t); */
blli[2].length = 0;
error = setsockopt( s, 0, SO_ATM_BLLI, (void *)&blli,
sizeof(blli) );
if (error) {
perror("setsockopt SO_ATM_BLLI");
exit(-1);
} /* endif */
// Set the Traffic Descriptor
// See the ATM UNI 3.0 for valid settings.
bzero( traffic, sizeof(traffic_des_t) );
// Here we specify a 25 Mbps best effort connection. Best effort
// indicates that the adapter should not enforce the transmission
// rate. Note that the minimum rate will be depend on what
// best effort rate queues have bet configured for the ATM adapter.
// See SMIT for details.
traffic.best_effort = TRUE; // No rate enforcement
traffic.fwd_peakrate_lp = 25000; // Kbps
traffic.bak_peakrate_lp = 25000; // Kbps
traffic.tagging_bak = FALSE;
traffic.tagging_fwd = FALSE;
// Fields that are not used must be set to NOT_SPECIFIED_L (long)
traffic.fwd_peakrate_hp = NOT_SPECIFIED_L;
traffic.bak_peakrate_hp = NOT_SPECIFIED_L;
traffic.fwd_sus_rate_hp = NOT_SPECIFIED_L;
traffic.bak_sus_rate_hp = NOT_SPECIFIED_L;
traffic.fwd_sus_rate_lp = NOT_SPECIFIED_L;
traffic.bak_sus_rate_lp = NOT_SPECIFIED_L;
traffic.fwd_bur_size_hp = NOT_SPECIFIED_L;
traffic.bak_bur_size_hp = NOT_SPECIFIED_L;
traffic.fwd_bur_size_lp = NOT_SPECIFIED_L;
traffic.bak_bur_size_lp = NOT_SPECIFIED_L;
error = setsockopt( s, 0, SO_ATM_TRAFFIC_DES, (void *)&traffic,
sizeof(traffic_des_t) );
if (error) {
perror("set traffic");
exit(-1);
} /* endif */
// Set the Broadband Bearer Capability
// See the UNI 3.0 for valid combinations
bearer.bearer_class = CM_CLASS_C;
bearer.traffic_type = NOT_SPECIFIED_B;
bearer.timing = NOT_SPECIFIED_B;
bearer.clipping = CM_NOT_SUSCEPTIBLE;
bearer.connection_cfg = CM_CON_CFG_PTP;
error = setsockopt( s, 0, SO_ATM_BEARER, (void *)&bearer,
sizeof(bearer_t) );
if (error) {
perror("set bearer");
exit(-1);
} /* endif */
printf("Input ATM address to be called:\n");
i = scanf( "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x",
&o[0], &o[1], &o[2], &o[3], &o[4],
&o[5], &o[6], &o[7], &o[8], &o[9],
&o[10], &o[11], &o[12], &o[13], &o[14],
&o[15], &o[16], &o[17], &o[18], &o[19] );
if (i != 20) {
printf("invalid atm address\n");
exit(-1);
}
for (i=0; i<20; i++) {
addr.sndd_atm_addr.number.addr[i] = o[i];
} /* endfor */
addr.sndd_atm_addr.length = ATM_ADDR_LEN;
addr.sndd_atm_addr.type = CM_INTL_ADDR_TYPE;
addr.sndd_atm_addr.plan_id = CM_NSAP;
addr.sndd_atm_addr.pres_ind = NOT_SPECIFIED_B;
addr.sndd_atm_addr.screening = NOT_SPECIFIED_B;
addr.sndd_atm_vc_type = CONN_SVC;
error = connect( s, (struct sockaddr *)&addr, sizeof(addr) );
if (error) {
perror("connect");
// If a connect fails, the cause structure may contain useful
// information for determining the reason of the failure.
// See the ATM UNI 3.0 for a description of the cause values.
size = sizeof(cause_t);
error = getsockopt(s, 0, SO_ATM_CAUSE, (void *)&cause, &size);
if (error) {
perror("SO_ATM_CAUSE");
} else {
printf("cause = %d\n", cause.cause );
} /* endif */
exit(-1);
} /* endif */
while (1) {
error = send( s, buff, BUFF_SIZE, 0 );
if (error == -1) {
// If a send fails, the cause structure may contain useful
// information for determining the reason of the failure.
// The connection might have been closed by the other party,
// or the physical network might have been disconnected.
// See the ATM UNI 3.0 for a description of the cause values.
// If the send failed for some other reason, the errno will
// indicate this.
perror("send");
size = sizeof(cause_t);
error = getsockopt(s, 0, SO_ATM_CAUSE, (void *)&cause, &size);
if (error) {
perror("SO_ATM_CAUSE");
} else {
printf("cause = %d\n", cause.cause );
}
exit(-1);
} else {
printf("sent %d bytes\n", error );
}
sleep(1);
}
}