//Genia's add:
int init_module(int max_games) {
maxGames = max_games;
games = kmalloc(sizeof(Game) * max_games, GFP_KERNEL);
for(int i=0,i<max_games;i++
) {
games[i].board=kmalloc(sizeof(int) * N*N, GFP_KERNEL);
Init(&(games[i].board));
games[i].currentPlayer=WHITE;
games[i].openCount=0;
games[i].isFinished=false;
games[i].isRealesed=false;
games[i].winner=NOT_FINISHED;
sema_init(&(games[i].countLock), 0);
sema_init(&(games[i].openLock), 0);
sema_init(&(games[i].readWriteLock), 0);
sema_init(&(games[i].whiteLock), 0);
sema_init(&(games[i].blackLock), 0);
sema_init(&(games[i].isFinishedLock), 0);
sema_init(&(games[i].isReleasedLock), 0);
sema_init(&(games[i].winnerLock), 0);
}
major = register_chrdev(0, "snake", &fops);
MODULE_PARM(maxGames, "i");
MODULE_PARM(games, "i");
MODULE_PARM(major, "i");
SET_MODULE_OWNER(&fops);
return 0;
}
static int create_pipe(int nr)
{
int minor_in, minor_out , ret;
if (dev_offset == -1) {
if (inminor == -1) {
minor_in = -1;
} else {
minor_in = inminor+nr;
}
if (outminor == -1) {
minor_out = -1;
} else {
minor_out = outminor+nr;
}
} else {
minor_in = 2*nr + dev_offset;
minor_out = 2*nr+1 + dev_offset;
}
/* allocate space for this pipe */
loops[nr]= kmalloc(sizeof(struct vloopback_pipe), GFP_KERNEL);
if (!loops[nr])
return -ENOMEM;
/* set up a new video device plus our private area */
loops[nr]->vloopin= video_device_alloc();
if (loops[nr]->vloopin == NULL)
return -ENOMEM;
*loops[nr]->vloopin = vloopback_template;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
video_set_drvdata(loops[nr]->vloopin,kmalloc(sizeof(struct vloopback_private),GFP_KERNEL));
#else
loops[nr]->vloopin->priv= kmalloc(sizeof(struct vloopback_private),GFP_KERNEL);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
if ((priv_ptr)video_get_drvdata(loops[nr]->vloopin) == NULL) {
#else
if (loops[nr]->vloopin->priv == NULL) {
#endif
kfree(loops[nr]->vloopin);
return -ENOMEM;
}
/* repeat for the output device */
loops[nr]->vloopout= video_device_alloc();
if (loops[nr]->vloopout == NULL) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree((priv_ptr)video_get_drvdata(loops[nr]->vloopin));
#else
kfree(loops[nr]->vloopin->priv);
#endif
kfree(loops[nr]->vloopin);
return -ENOMEM;
}
*loops[nr]->vloopout = vloopback_template;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
video_set_drvdata(loops[nr]->vloopout,kmalloc(sizeof(struct vloopback_private),GFP_KERNEL));
#else
loops[nr]->vloopout->priv= kmalloc(sizeof(struct vloopback_private),GFP_KERNEL);
#endif
if ((priv_ptr)video_get_drvdata(loops[nr]->vloopout) == NULL) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree((priv_ptr)video_get_drvdata(loops[nr]->vloopin));
#else
kfree(loops[nr]->vloopin->priv);
#endif
kfree(loops[nr]->vloopin);
kfree(loops[nr]->vloopout);
return -ENOMEM;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
((priv_ptr)video_get_drvdata(loops[nr]->vloopin))->pipenr=nr;
((priv_ptr)video_get_drvdata(loops[nr]->vloopout))->pipenr=nr;
#else
((priv_ptr)loops[nr]->vloopin->priv)->pipenr=nr;
((priv_ptr)loops[nr]->vloopout->priv)->pipenr=nr;
#endif
loops[nr]->invalid_ioctl = 0; /* tibit */
loops[nr]->buffer=NULL;
loops[nr]->width=0;
loops[nr]->height=0;
loops[nr]->palette=0;
loops[nr]->frameswrite=0;
loops[nr]->framesread=0;
loops[nr]->framesdumped=0;
loops[nr]->wopen=0;
loops[nr]->ropen=0;
loops[nr]->frame=0;
loops[nr]->pendingread=0;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
((priv_ptr)video_get_drvdata(loops[nr]->vloopin))->in=1;
((priv_ptr)video_get_drvdata(loops[nr]->vloopout))->in=0;
#else
((priv_ptr)loops[nr]->vloopin->priv)->in=1;
((priv_ptr)loops[nr]->vloopout->priv)->in=0;
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
loops[nr]->vloopin->type=0;
#endif
sprintf(loops[nr]->vloopin->name, "Video loopback %d input", nr);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
loops[nr]->vloopout->type=VID_TYPE_CAPTURE;
#endif
sprintf(loops[nr]->vloopout->name, "Video loopback %d output", nr);
init_waitqueue_head(&loops[nr]->wait);
init_MUTEX(&loops[nr]->lock);
ret = video_register_device(loops[nr]->vloopout, VFL_TYPE_GRABBER, minor_out);
if ((ret ==-1) || (ret == -23)) {
info("error registering device %s", loops[nr]->vloopout->name);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopin)));
video_unregister_device(loops[nr]->vloopin);
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopout)));
#else
kfree(loops[nr]->vloopin->priv);
video_unregister_device(loops[nr]->vloopin);
kfree(loops[nr]->vloopout->priv);
#endif
kfree(loops[nr]->vloopout);
kfree(loops[nr]);
loops[nr]=NULL;
return ret;
}
ret = video_register_device(loops[nr]->vloopin, VFL_TYPE_GRABBER, minor_in);
if ((ret == -1 ) || ( ret == -23 )) {
info("error registering device %s",loops[nr]->vloopin->name);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopin)));
kfree(((priv_ptr)video_get_drvdata(loops[nr]->vloopout)));
#else
kfree(loops[nr]->vloopin->priv);
kfree(loops[nr]->vloopout->priv);
#endif
kfree(loops[nr]->vloopin);
kfree(loops[nr]->vloopout);
kfree(loops[nr]);
loops[nr]=NULL;
return ret;
}
loops[nr]->ioctldata=kmalloc(1024, GFP_KERNEL);
loops[nr]->ioctlretdata=kmalloc(1024, GFP_KERNEL);
return 0;
}
/****************************************************************************
* init stuff
****************************************************************************/
MODULE_AUTHOR("J.B. Vreeken ([email protected])");
MODULE_DESCRIPTION("Video4linux loopback device.");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(pipes, int, 000);
#else
MODULE_PARM(pipes, "i");
#endif
MODULE_PARM_DESC(pipes, "Nr of pipes to create (each pipe uses two video devices)");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(spares, int, 000);
#else
MODULE_PARM(spares, "i");
#endif
MODULE_PARM_DESC(spares, "Nr of spare pipes that should be created");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(dev_offset, int, 000);
#else
MODULE_PARM(dev_offset_param, "i");
#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(inminor, int, 000);
#else
MODULE_PARM(inminor, "i");
#endif
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(outminor, int, 000);
#else
MODULE_PARM(outminor, "i");
#endif
MODULE_PARM_DESC(dev_offset, "Prefered offset for video device numbers");
MODULE_LICENSE("GPL");
MODULE_VERSION( VLOOPBACK_VERSION );
static int __init vloopback_init(void)
{
int i,ret;
info("Video4linux loopback driver v"VLOOPBACK_VERSION);
if (pipes==-1) pipes=1;
if (pipes > MAX_PIPES) {
pipes=MAX_PIPES;
info("Nr of pipes is limited to: %d", MAX_PIPES);
}
for (i=0; i<pipes; i++) {
ret = create_pipe(i);
if (ret == 0) {
info("Loopback %d registered, input: video%d, output: video%d",
i, loops[i]->vloopin->minor,
loops[i]->vloopout->minor);
nr_o_pipes=i+1;
}else{
return ret;
}
}
return 0;
}
static int create_pipe(int nr)
{
int minor_in, minor_out , ret;
if (debug > LOG_NODEBUG)
info("Video loopback %d", nr);
if (dev_offset == -1) {
minor_in = minor_out = -1; /* autoassign */
} else {
minor_in = 2 * nr + dev_offset;
minor_out = 2 * nr + 1 + dev_offset;
}
/* allocate space for this pipe */
loops[nr]= kmalloc(sizeof(struct vloopback_pipe), GFP_KERNEL);
if (!loops[nr])
return -ENOMEM;
/* set up a new video device plus our private area */
loops[nr]->vloopin = video_device_alloc();
if (loops[nr]->vloopin == NULL)
return -ENOMEM;
*loops[nr]->vloopin = vloopback_template;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
priv_ptr ptr_in = kmalloc(sizeof(struct vloopback_private),
GFP_KERNEL);
if (ptr_in == NULL) {
kfree(ptr_in);
#else
loops[nr]->vloopin->vd_private_data = kmalloc(sizeof(struct vloopback_private),
GFP_KERNEL);
if (loops[nr]->vloopin->vd_private_data == NULL) {
kfree(loops[nr]->vloopin);
#endif
return -ENOMEM;
}
/* repeat for the output device */
loops[nr]->vloopout = video_device_alloc();
if (loops[nr]->vloopout == NULL) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
kfree(ptr_in);
#else
kfree(loops[nr]->vloopin->vd_private_data);
#endif
kfree(loops[nr]->vloopin);
return -ENOMEM;
}
*loops[nr]->vloopout = vloopback_template;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
priv_ptr ptr_out = kmalloc(sizeof(struct vloopback_private),
GFP_KERNEL);
if (ptr_out == NULL) {
kfree(ptr_in);
kfree(ptr_out);
#else
loops[nr]->vloopout->vd_private_data = kmalloc(sizeof(struct vloopback_private),
GFP_KERNEL);
if (loops[nr]->vloopout->vd_private_data == NULL) {
kfree(loops[nr]->vloopin->vd_private_data);
#endif
kfree(loops[nr]->vloopin);
kfree(loops[nr]->vloopout);
return -ENOMEM;
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
ptr_in->pipenr = nr;
ptr_out->pipenr = nr;
#else
((priv_ptr)loops[nr]->vloopin->vd_private_data)->pipenr = nr;
((priv_ptr)loops[nr]->vloopout->vd_private_data)->pipenr = nr;
#endif
loops[nr]->invalid_ioctl = 0; /* tibit */
loops[nr]->buffer = NULL;
loops[nr]->width = 0;
loops[nr]->height = 0;
loops[nr]->palette = 0;
loops[nr]->frameswrite = 0;
loops[nr]->framesread = 0;
loops[nr]->framesdumped = 0;
loops[nr]->wopen = 0;
loops[nr]->ropen = 0;
loops[nr]->frame = 0;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
ptr_in->in = 1;
ptr_out->in = 0;
dev_set_drvdata(&loops[nr]->vloopin->dev, ptr_in);
dev_set_drvdata(&loops[nr]->vloopout->dev, ptr_out);
#else
((priv_ptr)loops[nr]->vloopin->vd_private_data)->in = 1;
((priv_ptr)loops[nr]->vloopout->vd_private_data)->in = 0;
#endif
sprintf(loops[nr]->vloopin->name, "Video loopback %d input", nr);
sprintf(loops[nr]->vloopout->name, "Video loopback %d output", nr);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27)
loops[nr]->vloopin->type = 0;
loops[nr]->vloopout->type = VID_TYPE_CAPTURE;
#endif
loops[nr]->vloopout->minor = minor_out;
loops[nr]->vloopin->minor = minor_in;
init_waitqueue_head(&loops[nr]->wait);
init_MUTEX(&loops[nr]->lock);
ret = video_register_device(loops[nr]->vloopin, VFL_TYPE_GRABBER, minor_in);
if ((ret == -1 ) || ( ret == -23 )) {
info("error registering device %s", loops[nr]->vloopin->name);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
kfree(ptr_in);
dev_set_drvdata(&loops[nr]->vloopin->dev, NULL);
#else
kfree(loops[nr]->vloopin->vd_private_data);
#endif
kfree(loops[nr]->vloopin);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
kfree(ptr_out);
dev_set_drvdata(&loops[nr]->vloopout->dev, NULL);
#else
kfree(loops[nr]->vloopout->vd_private_data);
#endif
kfree(loops[nr]->vloopout);
kfree(loops[nr]);
loops[nr] = NULL;
return ret;
}
ret = video_register_device(loops[nr]->vloopout, VFL_TYPE_GRABBER, minor_out);
if ((ret ==-1) || (ret == -23)) {
info("error registering device %s", loops[nr]->vloopout->name);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
kfree(ptr_in);
dev_set_drvdata(&loops[nr]->vloopin->dev, NULL);
#else
kfree(loops[nr]->vloopin->vd_private_data);
#endif
video_unregister_device(loops[nr]->vloopin);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
kfree(ptr_out);
dev_set_drvdata(&loops[nr]->vloopout->dev, NULL);
#else
kfree(loops[nr]->vloopout->vd_private_data);
#endif
kfree(loops[nr]->vloopout);
kfree(loops[nr]);
loops[nr] = NULL;
return ret;
}
loops[nr]->ioctldata = kmalloc(1024, GFP_KERNEL);
loops[nr]->ioctlretdata = kmalloc(1024, GFP_KERNEL);
return 0;
}
/****************************************************************************
* init stuff
****************************************************************************/
MODULE_AUTHOR("J.B. Vreeken ([email protected])");
MODULE_DESCRIPTION("Video4linux loopback device.");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(pipes, int, 000);
#else
MODULE_PARM(pipes, "i");
#endif
MODULE_PARM_DESC(pipes, " Nr of pipes to create (each pipe uses two video devices)");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(spares, int, 000);
#else
MODULE_PARM(spares, "i");
#endif
MODULE_PARM_DESC(spares, " Nr of spare pipes that should be created");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(num_buffers, int, 000);
#else
MODULE_PARM(num_buffers, "i");
#endif
MODULE_PARM_DESC(num_buffers, " Prefered numbers of internal buffers to map (default 2)");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(dev_offset, int, 000);
#else
MODULE_PARM(dev_offset_param, "i");
#endif
MODULE_PARM_DESC(dev_offset, " Prefered offset for video device numbers");
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)
module_param(debug, int, 000);
#else
MODULE_PARM(debug_param, "i");
#endif
MODULE_PARM_DESC(debug, " Enable module debug level 0-3 (by default 0)");
MODULE_LICENSE("GPL");
MODULE_VERSION( VLOOPBACK_VERSION );
static int __init vloopback_init(void)
{
int i, ret;
info("video4linux loopback driver v"VLOOPBACK_VERSION);
if (pipes == -1)
pipes = 1;
if (pipes > MAX_PIPES) {
pipes = MAX_PIPES;
info("Nr of pipes is limited to: %d", MAX_PIPES);
}
if (num_buffers < N_BUFFS) {
num_buffers = N_BUFFS;
info("Nr of buffer set to default value %d", N_BUFFS);
}
for (i = 0; i < pipes; i++) {
ret = create_pipe(i);
if (ret == 0) {
info("Loopback %d registered, input: video%d,"
" output: video%d",
i, loops[i]->vloopin->minor,
loops[i]->vloopout->minor);
info("Loopback %d , Using %d buffers", i, num_buffers);
nr_o_pipes = i + 1;
} else {
return ret;
}
}
return 0;
}
unsigned int nf_aodv_hook(unsigned int hooknum,
struct sk_buff **skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn) (struct sk_buff *))
{
int i;
/* We are only interested in IP packets */
if ((*skb)->nh.iph == NULL)
goto accept;
/* We want AODV control messages to go through directly to the
* AODV socket.... */
if ((*skb)->nh.iph && (*skb)->nh.iph->protocol == IPPROTO_UDP)
if ((*skb)->sk)
if ((*skb)->sk->dport == htons(AODV_PORT) ||
(*skb)->sk->sport == htons(AODV_PORT))
goto accept;
/* Check which hook the packet is on... */
switch (hooknum) {
case NF_IP_PRE_ROUTING:
/* Loop through all AODV enabled interfaces and see if the packet
* is bound to any of them. */
for (i = 0; i < nif; i++)
if (ifindices[i] == in->ifindex) {
(*skb)->nfmark = 3;
goto queue;
}
break;
case NF_IP_LOCAL_OUT:
for (i = 0; i < nif; i++)
if (ifindices[i] == out->ifindex) {
(*skb)->nfmark = 4;
goto queue;
}
break;
case NF_IP_POST_ROUTING:
/* Re-route all packets before sending on interface. This will
make sure queued packets are routed on a newly installed
route (after a successful RREQ-cycle). FIXME: Make sure
only "buffered" packets are re-routed. But how? */
if ((*skb)->nfmark == 3 || (*skb)->nfmark == 4) {
#ifdef USE_OLD_ROUTE_ME_HARDER
route_me_harder((*skb));
#else
ip_route_me_harder(skb);
#endif
}
return NF_ACCEPT;
default:
}
accept:
(*skb)->nfmark = 2;
return NF_ACCEPT;
queue:
return NF_QUEUE;
}
/*
* Called when the module is inserted in the kernel.
*/
char *ifname[MAX_INTERFACES] = { "eth0" };
MODULE_PARM(ifname, "1-" __MODULE_STRING(MAX_INTERFACES) "s");
int init_module()
{
struct net_device *dev = NULL;
int i;
EXPORT_NO_SYMBOLS;
nf_hook1.list.next = NULL;
nf_hook1.list.prev = NULL;
nf_hook1.hook = nf_aodv_hook;
nf_hook1.pf = PF_INET;
nf_hook1.hooknum = NF_IP_PRE_ROUTING;
nf_register_hook(&nf_hook1);
nf_hook2.list.next = NULL;
nf_hook2.list.prev = NULL;
nf_hook2.hook = nf_aodv_hook;
nf_hook2.pf = PF_INET;
nf_hook2.hooknum = NF_IP_LOCAL_OUT;
nf_register_hook(&nf_hook2);
nf_hook3.list.next = NULL;
nf_hook3.list.prev = NULL;
nf_hook3.hook = nf_aodv_hook;
nf_hook3.pf = PF_INET;
nf_hook3.hooknum = NF_IP_POST_ROUTING;
nf_register_hook(&nf_hook3);
for (i = 0; i < MAX_INTERFACES; i++) {
if (!ifname[i])
break;
dev = dev_get_by_name(ifname[i]);
if (!dev) {
printk("kaodv: No device %s available, ignoring!\n", ifname[i]);
dev_put(dev);
continue;
}
ifindices[nif++] = dev->ifindex;
dev_put(dev);
}
return 0;
}
/*
* Called when removing the module from memory...
*/
void cleanup_module()
{
nf_unregister_hook(&nf_hook1);
nf_unregister_hook(&nf_hook2);
nf_unregister_hook(&nf_hook3);
}