int main(void)
{
static int fd[MAX_PAR]; /* to force initialization */
struct sockaddr_atmsvc local[MAX_ADDR];
struct atmif_sioc req;
struct atm_sap sap;
struct atm_qos qos;
int listen_fd;
fd_set rset,wset;
int fds,completed = 0,connects = 0,accepts = 0;
FD_ZERO(&rset);
FD_ZERO(&wset);
if (text2sap(SAP,&sap,0) < 0) {
fprintf(stderr,"text2sap\n");
return 1;
}
if (text2qos(QOS,&qos,0) < 0) {
fprintf(stderr,"text2qos\n");
return 1;
}
listen_fd = socket(PF_ATMSVC,SOCK_DGRAM,0);
if (listen_fd < 0) {
perror("socket");
return 1;
}
req.number = ITF;
req.arg = local;
req.length = sizeof(local);
if (ioctl(listen_fd,ATM_GETADDR,&req) < 0) {
perror("ioctl");
return 1;
}
if (!req.length) {
fprintf(stderr,"No local address\n");
return 1;
}
if (setsockopt(listen_fd,SOL_ATM,SO_ATMSAP,&sap,sizeof(sap)) < 0) {
perror("setsockopt SO_ATMSAP");
return 1;
}
if (setsockopt(listen_fd,SOL_ATM,SO_ATMQOS,&qos,sizeof(qos)) < 0) {
perror("setsockopt SO_ATMQOS");
return 1;
}
if (bind(listen_fd,(struct sockaddr *) local,sizeof(*local)) < 0) {
perror("bind");
return 1;
}
if (fcntl(listen_fd,F_SETFL,O_NONBLOCK) < 0) {
perror("fnctl");
return 1;
}
if (listen(listen_fd,5) < 0) {
perror("listen");
return 1;
}
FD_SET(listen_fd,&rset);
fds = listen_fd+1;
(void) signal(SIGCHLD,SIG_IGN);
while (1) {
static struct timeval no_delay;
fd_set _rset = rset;
fd_set _wset = wset;
int ret,i,empty;
no_delay.tv_sec = 0;
no_delay.tv_usec = 100000;
ret = select(fds,&_rset,&_wset,NULL,&no_delay);
if (ret < 0) {
perror("select");
return 1;
}
if (FD_ISSET(listen_fd,&_rset)) {
pid_t pid;
pid = fork();
if (pid < 0) {
perror("fork");
return 1;
}
if (!pid) {
if (accept(listen_fd,NULL,NULL) >= 0) exit(0);
perror("accept");
return 1;
}
accepts++;
}
empty = -1;
for (i = 0; i < MAX_PAR; i++)
if (!fd[i]) empty = i;
else if (FD_ISSET(fd[i],&_wset)) {
struct sockaddr_atmsvc dummy;
if (connect(fd[i],(struct sockaddr *) &dummy,sizeof(dummy))
< 0) {
perror("connect");
return 1;
}
FD_CLR(fd[i],&wset);
fd[i] = 0;
empty = i;
if (++completed == EXIT_LIM) {
printf("%d attempted, %d completed, %d accepts\n",
connects,completed,accepts);
return 0;
}
}
if (empty != -1) {
fd[empty] = socket(PF_ATMSVC,SOCK_DGRAM,0);
if (fd[empty] < 0) {
perror("socket");
return 1;
}
if (fcntl(fd[empty],F_SETFL,O_NONBLOCK) < 0) {
perror("fnctl");
return 1;
}
if (setsockopt(fd[empty],SOL_ATM,SO_ATMSAP,&sap,sizeof(sap)) < 0) {
perror("setsockopt SO_ATMSAP");
return 1;
}
if (setsockopt(fd[empty],SOL_ATM,SO_ATMQOS,&qos,sizeof(qos)) < 0) {
perror("setsockopt SO_ATMQOS");
return 1;
}
if (connect(fd[empty],(struct sockaddr *) local,sizeof(*local)) < 0
&& errno != EINPROGRESS) {
perror("connect");
return 1;
}
FD_SET(fd[empty],&wset);
if (fds <= fd[empty]) fds = fd[empty]+1;
connects++;
}
}
return 0;
}
static int atm_parse_class_opt(struct qdisc_util *qu, int argc, char **argv,
struct nlmsghdr *n)
{
struct sockaddr_atmsvc addr;
struct atm_qos qos;
struct atm_sap sap;
unsigned char hdr[MAX_HDR_LEN];
__u32 excess = 0;
struct rtattr *tail;
int sndbuf = 0;
int hdr_len = -1;
int set_clip = 0;
int s;
memset(&addr,0,sizeof(addr));
(void) text2qos("aal5,ubr:sdu=9180,rx:none",&qos,0);
(void) text2sap("blli:l2=iso8802",&sap,0);
while (argc > 0) {
if (!strcmp(*argv,"pvc")) {
NEXT_ARG();
if (text2atm(*argv,(struct sockaddr *) &addr,
sizeof(addr),T2A_PVC | T2A_NAME) < 0) {
explain();
return -1;
}
}
else if (!strcmp(*argv,"svc")) {
NEXT_ARG();
if (text2atm(*argv,(struct sockaddr *) &addr,
sizeof(addr),T2A_SVC | T2A_NAME) < 0) {
explain();
return -1;
}
}
else if (!strcmp(*argv,"qos")) {
NEXT_ARG();
if (text2qos(*argv,&qos,0) < 0) {
explain();
return -1;
}
}
else if (!strcmp(*argv,"sndbuf")) {
char *end;
NEXT_ARG();
sndbuf = strtol(*argv,&end,0);
if (*end) {
explain();
return -1;
}
}
else if (!strcmp(*argv,"sap")) {
NEXT_ARG();
if (addr.sas_family != AF_ATMSVC ||
text2sap(*argv,&sap,T2A_NAME) < 0) {
explain();
return -1;
}
}
else if (!strcmp(*argv,"hdr")) {
unsigned char *ptr;
char *walk;
NEXT_ARG();
ptr = hdr;
for (walk = *argv; *walk; walk++) {
int tmp;
if (ptr == hdr+MAX_HDR_LEN) {
// fprintf(stderr,"header is too long\n");
return -1;
}
if (*walk == '.') continue;
if (!isxdigit(walk[0]) || !walk[1] ||
!isxdigit(walk[1])) {
explain();
return -1;
}
sscanf(walk,"%2x",&tmp);
*ptr++ = tmp;
walk++;
}
hdr_len = ptr-hdr;
}
else if (!strcmp(*argv,"excess")) {
NEXT_ARG();
if (!strcmp(*argv,"clp")) excess = 0;
else if (get_tc_classid(&excess,*argv)) {
explain();
return -1;
}
}
else if (!strcmp(*argv,"clip")) {
set_clip = 1;
}
else {
explain();
return 1;
}
argc--;
argv++;
}
s = socket(addr.sas_family,SOCK_DGRAM,0);
if (s < 0) {
// perror("socket");
return -1;
}
if (setsockopt(s,SOL_ATM,SO_ATMQOS,&qos,sizeof(qos)) < 0) {
// perror("SO_ATMQOS");
return -1;
}
if (sndbuf)
if (setsockopt(s,SOL_SOCKET,SO_SNDBUF,&sndbuf,sizeof(sndbuf)) < 0) {
// perror("SO_SNDBUF");
return -1;
}
if (addr.sas_family == AF_ATMSVC && setsockopt(s,SOL_ATM,SO_ATMSAP,
&sap,sizeof(sap)) < 0) {
// perror("SO_ATMSAP");
return -1;
}
if (connect(s,(struct sockaddr *) &addr,addr.sas_family == AF_ATMPVC ?
sizeof(struct sockaddr_atmpvc) : sizeof(addr)) < 0) {
/// perror("connect");
return -1;
}
if (set_clip)
if (ioctl(s,ATMARP_MKIP,0) < 0) {
// perror("ioctl ATMARP_MKIP");
return -1;
}
tail = NLMSG_TAIL(n);
addattr_l(n,1024,TCA_OPTIONS,NULL,0);
addattr_l(n,1024,TCA_ATM_FD,&s,sizeof(s));
if (excess) addattr_l(n,1024,TCA_ATM_EXCESS,&excess,sizeof(excess));
if (hdr_len != -1) addattr_l(n,1024,TCA_ATM_HDR,hdr,hdr_len);
tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
return 0;
}