void _sigchld(int sig, short what, void *data) {
int pid;
int *fds = (int *)data;
printf("SIGCHLD\n");
while ((pid = waitpid(-1, NULL, WNOHANG)) > 0) {
startproc(fds[1]);
}
}
int main() {
struct bufferevent *bev;
int childfd[2];
int pid;
event_init();
pipe(childfd);
/* have a bufferevent watch our child's stdout */
bev = bufferevent_new(childfd[0], bufread, NULL, NULL, "childwatch");
bufferevent_enable(bev, EV_READ);
startproc(childfd[1]);
filewatch();
struct event sigevent;
signal_set(&sigevent, SIGCHLD, _sigchld, &childfd);
signal_add(&sigevent, NULL);
event_dispatch();
return 0;
}
/*
* Process private IOCTL messages (typically from scctrl)
*/
int sc_ioctl(int card, scs_ioctl *data)
{
int status;
RspMessage *rcvmsg;
char *spid;
char *dn;
char switchtype;
char speed;
rcvmsg = kmalloc(sizeof(RspMessage), GFP_KERNEL);
if (!rcvmsg)
return -ENOMEM;
switch(data->command) {
case SCIOCRESET: /* Perform a hard reset of the adapter */
{
pr_debug("%s: SCIOCRESET: ioctl received\n",
sc_adapter[card]->devicename);
sc_adapter[card]->StartOnReset = 0;
return (reset(card));
}
case SCIOCLOAD:
{
char *srec;
srec = kmalloc(SCIOC_SRECSIZE, GFP_KERNEL);
if (!srec) {
kfree(rcvmsg);
return -ENOMEM;
}
pr_debug("%s: SCIOLOAD: ioctl received\n",
sc_adapter[card]->devicename);
if(sc_adapter[card]->EngineUp) {
pr_debug("%s: SCIOCLOAD: command failed, LoadProc while engine running.\n",
sc_adapter[card]->devicename);
kfree(rcvmsg);
kfree(srec);
return -1;
}
/*
* Get the SRec from user space
*/
if (copy_from_user(srec, data->dataptr, sizeof(srec))) {
kfree(rcvmsg);
kfree(srec);
return -EFAULT;
}
status = send_and_receive(card, CMPID, cmReqType2, cmReqClass0, cmReqLoadProc,
0, sizeof(srec), srec, rcvmsg, SAR_TIMEOUT);
kfree(rcvmsg);
kfree(srec);
if(status) {
pr_debug("%s: SCIOCLOAD: command failed, status = %d\n",
sc_adapter[card]->devicename, status);
return -1;
}
else {
pr_debug("%s: SCIOCLOAD: command successful\n",
sc_adapter[card]->devicename);
return 0;
}
}
case SCIOCSTART:
{
pr_debug("%s: SCIOSTART: ioctl received\n",
sc_adapter[card]->devicename);
if(sc_adapter[card]->EngineUp) {
pr_debug("%s: SCIOCSTART: command failed, engine already running.\n",
sc_adapter[card]->devicename);
return -1;
}
sc_adapter[card]->StartOnReset = 1;
startproc(card);
return 0;
}
case SCIOCSETSWITCH:
{
pr_debug("%s: SCIOSETSWITCH: ioctl received\n",
sc_adapter[card]->devicename);
/*
* Get the switch type from user space
*/
if (copy_from_user(&switchtype, data->dataptr, sizeof(char))) {
kfree(rcvmsg);
return -EFAULT;
}
pr_debug("%s: SCIOCSETSWITCH: setting switch type to %d\n",
sc_adapter[card]->devicename,
switchtype);
status = send_and_receive(card, CEPID, ceReqTypeCall, ceReqClass0, ceReqCallSetSwitchType,
0, sizeof(char),&switchtype, rcvmsg, SAR_TIMEOUT);
if(!status && !(rcvmsg->rsp_status)) {
pr_debug("%s: SCIOCSETSWITCH: command successful\n",
sc_adapter[card]->devicename);
kfree(rcvmsg);
return 0;
}
else {
pr_debug("%s: SCIOCSETSWITCH: command failed (status = %d)\n",
sc_adapter[card]->devicename, status);
kfree(rcvmsg);
return status;
}
}
case SCIOCGETSWITCH:
{
pr_debug("%s: SCIOGETSWITCH: ioctl received\n",
sc_adapter[card]->devicename);
/*
* Get the switch type from the board
*/
status = send_and_receive(card, CEPID, ceReqTypeCall, ceReqClass0,
ceReqCallGetSwitchType, 0, 0, NULL, rcvmsg, SAR_TIMEOUT);
if (!status && !(rcvmsg->rsp_status)) {
pr_debug("%s: SCIOCGETSWITCH: command successful\n",
sc_adapter[card]->devicename);
}
else {
pr_debug("%s: SCIOCGETSWITCH: command failed (status = %d)\n",
sc_adapter[card]->devicename, status);
kfree(rcvmsg);
return status;
}
switchtype = rcvmsg->msg_data.byte_array[0];
/*
* Package the switch type and send to user space
*/
if (copy_to_user(data->dataptr, &switchtype,
sizeof(char))) {
kfree(rcvmsg);
return -EFAULT;
}
kfree(rcvmsg);
return 0;
}
case SCIOCGETSPID:
{
pr_debug("%s: SCIOGETSPID: ioctl received\n",
sc_adapter[card]->devicename);
spid = kmalloc(SCIOC_SPIDSIZE, GFP_KERNEL);
if(!spid) {
kfree(rcvmsg);
return -ENOMEM;
}
/*
* Get the spid from the board
*/
status = send_and_receive(card, CEPID, ceReqTypeCall, ceReqClass0, ceReqCallGetSPID,
data->channel, 0, NULL, rcvmsg, SAR_TIMEOUT);
if (!status) {
pr_debug("%s: SCIOCGETSPID: command successful\n",
sc_adapter[card]->devicename);
}
else {
pr_debug("%s: SCIOCGETSPID: command failed (status = %d)\n",
sc_adapter[card]->devicename, status);
kfree(rcvmsg);
return status;
}
strcpy(spid, rcvmsg->msg_data.byte_array);
/*
* Package the switch type and send to user space
*/
if (copy_to_user(data->dataptr, spid, SCIOC_SPIDSIZE)) {
kfree(spid);
kfree(rcvmsg);
return -EFAULT;
}
kfree(spid);
kfree(rcvmsg);
return 0;
}
case SCIOCSETSPID:
{
pr_debug("%s: DCBIOSETSPID: ioctl received\n",
sc_adapter[card]->devicename);
spid = kmalloc(SCIOC_SPIDSIZE, GFP_KERNEL);
if(!spid) {
kfree(rcvmsg);
return -ENOMEM;
}
/*
* Get the spid from user space
*/
if (copy_from_user(spid, data->dataptr, SCIOC_SPIDSIZE)) {
kfree(rcvmsg);
return -EFAULT;
}
pr_debug("%s: SCIOCSETSPID: setting channel %d spid to %s\n",
sc_adapter[card]->devicename, data->channel, spid);
status = send_and_receive(card, CEPID, ceReqTypeCall,
ceReqClass0, ceReqCallSetSPID, data->channel,
strlen(spid), spid, rcvmsg, SAR_TIMEOUT);
if(!status && !(rcvmsg->rsp_status)) {
pr_debug("%s: SCIOCSETSPID: command successful\n",
sc_adapter[card]->devicename);
kfree(rcvmsg);
kfree(spid);
return 0;
}
else {
pr_debug("%s: SCIOCSETSPID: command failed (status = %d)\n",
sc_adapter[card]->devicename, status);
kfree(rcvmsg);
kfree(spid);
return status;
}
}
case SCIOCGETDN:
{
pr_debug("%s: SCIOGETDN: ioctl received\n",
sc_adapter[card]->devicename);
/*
* Get the dn from the board
*/
status = send_and_receive(card, CEPID, ceReqTypeCall, ceReqClass0, ceReqCallGetMyNumber,
data->channel, 0, NULL, rcvmsg, SAR_TIMEOUT);
if (!status) {
pr_debug("%s: SCIOCGETDN: command successful\n",
sc_adapter[card]->devicename);
}
else {
pr_debug("%s: SCIOCGETDN: command failed (status = %d)\n",
sc_adapter[card]->devicename, status);
kfree(rcvmsg);
return status;
}
dn = kmalloc(SCIOC_DNSIZE, GFP_KERNEL);
if (!dn) {
kfree(rcvmsg);
return -ENOMEM;
}
strcpy(dn, rcvmsg->msg_data.byte_array);
kfree(rcvmsg);
/*
* Package the dn and send to user space
*/
if (copy_to_user(data->dataptr, dn, SCIOC_DNSIZE)) {
kfree(dn);
return -EFAULT;
}
kfree(dn);
return 0;
}
case SCIOCSETDN:
{
pr_debug("%s: SCIOSETDN: ioctl received\n",
sc_adapter[card]->devicename);
dn = kmalloc(SCIOC_DNSIZE, GFP_KERNEL);
if (!dn) {
kfree(rcvmsg);
return -ENOMEM;
}
/*
* Get the spid from user space
*/
if (copy_from_user(dn, data->dataptr, SCIOC_DNSIZE)) {
kfree(rcvmsg);
kfree(dn);
return -EFAULT;
}
pr_debug("%s: SCIOCSETDN: setting channel %d dn to %s\n",
sc_adapter[card]->devicename, data->channel, dn);
status = send_and_receive(card, CEPID, ceReqTypeCall,
ceReqClass0, ceReqCallSetMyNumber, data->channel,
strlen(dn),dn,rcvmsg, SAR_TIMEOUT);
if(!status && !(rcvmsg->rsp_status)) {
pr_debug("%s: SCIOCSETDN: command successful\n",
sc_adapter[card]->devicename);
kfree(rcvmsg);
kfree(dn);
return 0;
}
else {
pr_debug("%s: SCIOCSETDN: command failed (status = %d)\n",
sc_adapter[card]->devicename, status);
kfree(rcvmsg);
kfree(dn);
return status;
}
}
case SCIOCTRACE:
pr_debug("%s: SCIOTRACE: ioctl received\n",
sc_adapter[card]->devicename);
/* sc_adapter[card]->trace = !sc_adapter[card]->trace;
pr_debug("%s: SCIOCTRACE: tracing turned %s\n",
sc_adapter[card]->devicename,
sc_adapter[card]->trace ? "ON" : "OFF"); */
break;
case SCIOCSTAT:
{
boardInfo *bi;
pr_debug("%s: SCIOSTAT: ioctl received\n",
sc_adapter[card]->devicename);
bi = kmalloc (sizeof(boardInfo), GFP_KERNEL);
if (!bi) {
kfree(rcvmsg);
return -ENOMEM;
}
kfree(rcvmsg);
GetStatus(card, bi);
if (copy_to_user(data->dataptr, bi, sizeof(boardInfo))) {
kfree(bi);
return -EFAULT;
}
kfree(bi);
return 0;
}
case SCIOCGETSPEED:
{
pr_debug("%s: SCIOGETSPEED: ioctl received\n",
sc_adapter[card]->devicename);
/*
* Get the speed from the board
*/
status = send_and_receive(card, CEPID, ceReqTypeCall, ceReqClass0,
ceReqCallGetCallType, data->channel, 0, NULL, rcvmsg, SAR_TIMEOUT);
if (!status && !(rcvmsg->rsp_status)) {
pr_debug("%s: SCIOCGETSPEED: command successful\n",
sc_adapter[card]->devicename);
}
else {
pr_debug("%s: SCIOCGETSPEED: command failed (status = %d)\n",
sc_adapter[card]->devicename, status);
kfree(rcvmsg);
return status;
}
speed = rcvmsg->msg_data.byte_array[0];
kfree(rcvmsg);
/*
* Package the switch type and send to user space
*/
if (copy_to_user(data->dataptr, &speed, sizeof(char)))
return -EFAULT;
return 0;
}
case SCIOCSETSPEED:
pr_debug("%s: SCIOCSETSPEED: ioctl received\n",
sc_adapter[card]->devicename);
break;
case SCIOCLOOPTST:
pr_debug("%s: SCIOCLOOPTST: ioctl received\n",
sc_adapter[card]->devicename);
break;
default:
kfree(rcvmsg);
return -1;
}
kfree(rcvmsg);
return 0;
}
void
main(int argc, char *argv[])
{
Filsys *fs;
int ream, fsok;
int newbufsize, nocheck;
char buf[NAMELEN];
int pid, ctl;
progname = "kfs";
procname = "init";
/*
* insulate from invoker's environment and keep it from swapping
*/
rfork(RFNAMEG|RFNOTEG|RFREND);
confinit();
sfd = -1;
ream = 0;
newbufsize = 0;
nocheck = 0;
wrenfile = "/dev/sdC0/fs";
pid = getpid();
snprint(buf, sizeof buf, "/proc/%d/ctl", pid);
ctl = open(buf, OWRITE);
fprint(ctl, "noswap\n");
close(ctl);
buf[0] = '\0';
ARGBEGIN{
case 'b':
newbufsize = atol(ARGF());
break;
case 'c':
nocheck = 1;
break;
case 'f':
wrenfile = ARGF();
break;
case 'm':
nwren = atol(ARGF());
break;
case 'n':
strncpy(buf, ARGF(), NAMELEN-1);
buf[NAMELEN-1] = '\0';
break;
case 'p':
cmdmode = atol(ARGF());
break;
case 'r':
ream = 1;
break;
case 's':
sfd = 0;
rfd = dup(1, -1);
close(1);
if(open("/dev/cons", OWRITE) < 0)
open("#c/cons", OWRITE);
break;
case 'B':
conf.niobuf = strtoul(ARGF(), 0, 0);
break;
case 'C':
chat = 1;
break;
default:
usage();
}ARGEND
if(argc != 0)
usage();
cmdfd = 2;
if (access(wrenfile, AREAD|AWRITE) == -1)
sysfatal("%s cannot access device", wrenfile);
formatinit();
sublockinit();
if(buf[0])
sprint(service, "kfs.%s", buf);
else
strcpy(service, "kfs");
chan = chaninit(service);
consinit();
tlocks = ialloc(NTLOCK * sizeof *tlocks);
uid = ialloc(conf.nuid * sizeof(*uid));
uidspace = ialloc(conf.uidspace * sizeof(*uidspace));
gidspace = ialloc(conf.gidspace * sizeof(*gidspace));
/*
* init global locks
*/
wlock(&mainlock); wunlock(&mainlock);
/*
* init the file system, ream it if needed, and get the block sizes
*/
ream = fsinit(ream, newbufsize);
iobufinit();
for(fs=filesys; fs->name; fs++)
if(fs->flags & FREAM){ /* set by fsinit if reamed */
ream++;
rootream(fs->dev, getraddr(fs->dev));
superream(fs->dev, superaddr(fs->dev));
}
boottime = time(nil);
consserve();
fsok = superok(filesys[0].dev, superaddr(filesys[0].dev), 0);
if(!nocheck && !ream && !fsok)
cmd_exec("check fq");
startproc(forkserve, "srv");
startproc(syncproc, "sync");
exits(0);
}