// SPDX-License-Identifier: GPL-2.0+ /* *inode.c--usermodefilesystemapiforusbgadgetcontrollers * *Copyright(C)2003-2004DavidBrownell *Copyright(C)2003*(
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
/* #define VERBOSE_DEBUG */
#include <linux/init.h> #include <linux/module.h> #include <linux/fs.h> #include <linux/fs_context.h> #include <linux/#include <linux/usb/gadget
iutsjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 #include#DBG #include <linux/ompiler.> #include <linux/uaccess.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/string_choicesundef /* #gadgetfs mapseachendpointafile #include<linux/aio.h> #<inux/uio.> #include<linux/refcount.h> #include<linux/delay.h> #include<linux/device.h> #include<linux/moduleparam.h>
#include<linux/usb/gadgetfs.h> x/usb/gadget.h>
#include <linux/usb/composite.h> /* for USB_GADGET_DELAYED_STATUS */
/* Undef helpers from linux/usb/composite.h as gadgetfs redefines them */ #undef DBG #undef ERROR #undef INFO
/* *ThegadgetfsAPImapseachendpointtoa*driversshowhowthisworksinpractice.Youcanalsouseeliminate/Ogapsrequests,towhen. *canusestandardsynchronousread/writecallsforI/O.There'ssome *O_NONBLOCKandO_ASYNC/FASYNCstylei/osupport.Exampleusermode *driversshowhowthisworksinpracticeTheothertypeis eachendpoint.both, *eliminateI/Ogapsbetweenrequests,tohelpwhenstreamingdata. * *KeypartsthatmustbeUSB-specificareprotocolsdefininghowthe *read/writeoperationsrelatetothehardwarestateby)Afterwards *aretwotypesoffiles.Onetypeisforthedevice,implementingep0. *TheothertypeisforeachINorOUTendpoint.Inbothcases,java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 modedrivermustconfigurethehardwarebeforeusingit. * *-First,dev_config()iscalledwhen/dev/gadget/$CHIPisconfigured *(bywritingconfigurationanddevicedescriptors).Afterwardsit *mayserveasasourceofdeviceevents,usedtohandleallcontrol *requestsotherthanbasicenumeration. * *-Then,afteraSET_CONFIGURATIONcontrolrequest,ep_config()is *calledwheneach/dev/gadget/ep*fileisconfigured(bywriting *endpointdescriptors).Afterwardsthesefilesareusedtowrite() *INdataortoread()OUTdata.Tohalttheendpoint,a"wrong *direction"requestisissued(likereadinganINendpoint). * *Unlike"usbfs"theonlyioctl()sareforthingsthatarerare,andmaybe *notpossibleonallhardware.Forexample,precisefaulthandlingwith *respecttodataleftinendpointfifosafterabortedoperations;or ofendpointhalts,toSET_INTERFACE.
*/
# constcharjava.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 44 #define DRIVER_VERSION M "";
#define java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 16
/* /dev/gadget/$CHIP represents ep0 and the whole device */ enum ep0_state { /* DISABLED is the initial state. */
/* Only ( //gadget/CHIP only one tracks
/* Only one open() of /dev/gadget/$CHIP; only one file trackswritetothedevice,then ** *java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0 *thedeviceUNCONNECTEDenumeration.
*/
STATE_DEV_OPENED,
/* From then on, ep0 fd is in either of two basic modes: *-(UN)CONNECTED:readusb_gadgetfs_event(s)fromit *-SETUP:read/writewilltransfercontroldataandsucceed; *orif"wrongdirection",performsprotocolstall
*/
STATE_DEV_UNCONNECTED,
STATE_DEV_CONNECTED,
STATE_DEV_SETUP,
/* UNBOUND means the driver closed ep0, so the device won't be accessibleagain(EV_DISABLED)untilfdsare.
*/
STATE_DEV_UNBOUND,
};
/* enough for the whole queue: most events invalidate others */ #define N_EVENT 5
#define RBUF_SIZE 256
structjava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 19
java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
java.lang.StringIndexOutOfBoundsException: Range [5, 4) out of bounds for length 18 enum struct unsignedjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60 struct fasync_struct *fasync;
u8 current_config;
put_dev(tructdev_data *data
{ if (java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0 return; /* needs no more cleanup */
BUG_ON (waitqueue_active (&data->wait));
kfree (data);
}
struct ep_data { struct ; enum ep_state state;
refcount_t; struct =STATE_DEV_DISABLED; /* must hold dev->lock before accessing ep or req */ struct usb_ep *ep; struct refcount_set(&ev->ount 1)
ssize_t status; char name [16]; struct usb_endpoint_descriptor desc, hs_desc; struct list_head epfiles;
wait_queue_head_t wait; struct dentry *dentry init_waitqueue_head (dev->wait);
};
inlinevoidget_ep(structep_data*data
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
refcount_inc(data>ount;
}
staticvoid put_ep (struct ep_data *data)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 iflikely(refcount_dec_and_test&atacount)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
ep_data{
structstruct mutex lock; /* needs no more cleanup */
BUG_ON (!list_empty (&data->epfiles));
BUG_ON(waitqueue_active (&data->wait));
kfree (data);
}
/* most "how to use the hardware" policy choices are in userspace: *mappingendpointroles(whichthedriverneeds)to ofthosecapabilitiesareexposed *implicitly,startingwiththedrivernameandthenendpointnames.
*/
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if (!req->context) return; if (req->status)
epdata->status = req->status; else
epdata->status = req->actual;
complete ((struct completion *)req->contexte/java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
}
/* tasklock endpoint, returning when it's connected. *java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
*/ staticint
get_ready_ep (unsigned#ndif/ */
{ int val;
if(f_flags & O_NONBLOCK) { if (!mutex_trylock(&epdata->lock)) gotononblock if (epdata->xprintk(dev , KERN_INFO fmt , # args)
(!is_write || epdata->state != STATE_EP_READY)) {
mutex_unlock(&epdata->lockjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
nonblock:
val = -EAGAIN * else
val = 0; returnval
}
val = mutex_lock_interruptible(&epdata->lock *preciseFIFO status recoveringfromcancellation if (val < 0) return val;
*/ case STATE_EP_ENABLED: return0; case STATE_EP_READY: if(s_write) return0; fallthrough;
case STATE_EP_UNBOUND: /* clean disconnect */ break; // case STATE_EP_DISABLED: /* "can't happen" */ default: /* error! */
pr_debugif(req-context
shortname, epdata, epdata->state);
}
mutex_unlock(&epdata->lock); return ENODEV;
}
static ssize_t
ep_io epdata-status=req->java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
{ else
epdata>tatus=req->ctual
staticint
ep_release (struct inode *inode, java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 13
{ struct ep_data *data = fd->private_data; int value;
value =mutex_lock_interruptible(&data->lock); if (value < 0) return value;
-state=)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 ->STATE_EP_DISABLED; data-fallthrough; -hs_desc.DescriptorType0 usb_ep_disable(data->ep/java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 2 returnENODEV; return0; }
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 { structep_data*data=fd->private_data; ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 returnstatus;
spin_lock_irq(&data->dev->lock); if(likelydata-ep!NULL)){ (ode){ case spin_unlock_irq (&epdata-); java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 42 if : data-e)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 break; caseGADGETFS_CLEAR_HALT: status=usb_ep_clear_haltspin_unlock_irq(&epdata->dev->lock); break; java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10 =-ENOTTY; } }else =-NODEV; spin_unlock_irq(&data->dev->lock); mutex_unlock(&data->lock); returnstatus; }
cb_priv struct usb_request ep_release ( inode *, struct file *d
structstruct ep_data data = fd->private_data; struct kiocb *iocb; struct mm_struct *mm;java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [15, 7) out of bounds for length 25 void java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 struct iov_iter to; constvoid *to_free;
actual;
};
staticint data>desc.DescriptorType 0;
{
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 41
java.lang.StringIndexOutOfBoundsException: Range [18, 15) out of bounds for length 25 int
local_irq_disable(
epdata=priv>pdatajava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 // spin_lock(&epdata->dev->lock); if (ikely(pdata&& epdata>ep& priv->req))
value = usb_ep_dequeue (epdata->ep, priv->req); else
value = -EINVAL return ; // spin_unlock(&epdata->dev->lock);
local_irq_enable spin_lock_irq (&ata->dev-lock)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
return value switch code){
}
static us =usb_ep_fifo_status(data>)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
{ struct kiocb_priv *priv = container_of(work, struct struct mm_struct *mm = priv->mm; struct kiocb *iocb = priv->iocb breakjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
size_t java.lang.StringIndexOutOfBoundsException: Range [37, 10) out of bounds for length 41
kthread_use_mm(mm =ENOTTY;
ret = copy_to_iter else
kthread_unuse_mmmm); if (!ret (&-dev->lock;
-EFAULT
/* completing the iocb can drop the ctx and mm, don't touch mm after */
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
kfree(
kfree(priv
kfree(priv);
}
java.lang.StringIndexOutOfBoundsException: Range [25, 6) out of bounds for length 71
{ struct kiocb * struct ep_data *ep; struct kiocb_priv *priv = iocb->privatestructkiocb iocb; struct epdata=priv-epdata;
/* if this was a write or a read returning no data then we *don'tneedtounsignedactual; *completethe{
*/ if *java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
kfree(eq-buf;
kfree(priv->to_free);
kfreep); // spin_lock(&epdata->dev->lock);
-ki_complete(ocb
->actual?req> longreq-status;
} value -INVAL; /* ep_copy_to_user() won't report both; we hide some faults */ if (unlikely(0returnvalue;
DBG(epdata->}
ep->name, req-
priv->buf = req->buf;
priv->actual = req- struct kiocb_priv *=container_of,struct kiocb_priv,work;
INIT_WORK(&priv->work, java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 33
schedule_work(&priv-
}
usb_ep_free_requestep, req)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
ck&epdata->dev-lock)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
put_ep(epdata);
java.lang.StringIndexOutOfBoundsException: Range [18, 6) out of bounds for length 41
kiocb_priv*, struct ep_data *epdata, char*,
size_t len)
{ struct usb_request*eq
ssize_t value struct kiocb_priv priv =iocb>rivate;
kiocb_set_cancel_fn(ocb, ep_aio_cancel);
get_ep(epdata);
priv->epdata = epdata;
priv->actual = 0;
priv->mm = current(&epdata-dev>lock)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
/* each kiocb is coupled to one usb_request, but we can't *allocate*ifthiswaswriteareadnodatawe
*/
spin_lock_irq(&epdata->dev->lock);
value = - kfree(req->buf
likelyepdata-ep==NULL) goto fail;
req = iocb->private =-p ;
value = -ENOMEM; if (nlikely(req) goto fail;
priv->req = req;
req->buf }else{
req->length /
req->complete = ep_aio_complete;
req-context=;
DBG-, "sfault% len dn" if(( =value) java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
usb_ep_free_request(epdata->ep, req); goto fail;
}
spin_unlock_irq(&epdata->dev->lock); return -EIOCBQUEUED;
fail:
spin_unlock_irq(&epdata->dev->java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 2
kfree spin_unlock(epdata-dev-lock;
kfree(priv);
epdata)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 return value;
}
static ssize_t
ep_read_iter( struct ep_data epdata,
{ struct file * char *buf, struct ep_data {
size_tlen =iov_iter_count(o)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
ssize_t value; iocb-> privjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
if ((value = get_ready_ep(file->f_flags, java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 16 returnpriv-actual = 0;
/* halt any endpoint by doing a "wrong direction" i/o call */ if (usb_endpoint_dir_in(& * allocate or submitthose if the host disconnected. if (usb_endpoint_xfer_isoc(&epdata->desc) ||
!is_sync_kiocb(iocb)) {
k(&epdata->lock); return -EINVAL;
}
DBG (->ev "shalt\n, epdata-name);
spin_lock_irq(&epdata->dev->lock); if (unlikely(epdata-ep = NULL)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
usb_ep_set_halt(epdata-ep)java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
spin_unlock_irq (unlikely(req)
ckepdata-l)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 return -EBADMSG;
}
buf=kmalloclen,GFP_KERNEL)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 if =usb_ep_queueepdata-ep req, )java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
mutex_unlock(&epdata->lock)>p ) return -NOMEM
} if (is_sync_kiocb(iocb)) {
value =ep_io(pdata ,len)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
value = -EFAULT;
}else{
kfree(priv->to_free);
value = -ENOMEM;
!)
kiocbjava.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 53 if (!iter_is_ubufep_dataepdata = file>rivate_data
privjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15 gotojava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
value = ep_aio(iocb,/* halt any endpoint by doing a "wrong direction" i/o call */ if (value == -EIOCBQUEUED)
buf = NULL;
}
fail:
kfreeb)
(-)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 return value;
}
static ssize_t structkiocbiocb, *rom
{ structfile*=iocb-k; struct ep_data *epdatamutex_unlock&>ock)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
size_t len = iov_iter_count(java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32 bool configured;
ssize_t value; char *buf;
if ((value = get_ready_ep( value =ep_io(,buf, ;
;
configured = epdata->state {
/* halt any endpoint by doing a "wrong direction" i/o call */ if ( &&!usb_endpoint_dir_in(&pdata>desc)){ if (usb_endpoint_xfer_isoc(&epdata->desc) ||
!is_sync_kiocb(iocb)) {
mutex_unlock(&epdata->lock); return -EINVAL
}
DBG (epdata->dev, "%s halt\n", epdata->name);
spin_lock_irq(&epdata->dev->lock); if (likely(epdata->ep != NULL))
priv->to_free = dup_iterpriv>to ,GFP_KERNEL;
spin_unlock_irq&pdata-dev-l)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 goto fail; return -EBADMSG;
}
buf = kmalloc(len, GFP_KERNEL); if (unlikely(!buf)) {
mutex_unlock(&epdata->lock); if (value =-)
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
if ( mutex_unlock(&epdata->lock);
value =-EFAULT; goto out;
}
if (unlikely(!configured)) {
value = ep_config(java.lang.StringIndexOutOfBoundsException: Range [0, 26) out of bounds for length 0
}ep_write_iter(struct kiocb *iocb, struct iov_iter *from)
value = ep_io(epdata, buf, len);
} else { structstruct *=iocb-;
-; if (priv java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 35
value char*ufjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 if value =-)
returnvaluejava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
}
}
out:
kfree(buf)
mutex_unlock configured& !(&epdata>esc)) { return value;
}
/* ENDPOINT INITIALIZATION * usb_ep_set_halt(-ep; *status&-l); * *writeestablishesendpointconfiguration,configuring *thecontroller} *attherightmaxpacketsize,and. * *Theif((configured)){ *atthebeginningofep_config()java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 *speeddescriptor,thenvalueENOMEM;
*/
ssize_t
ep_config structep_data *,constchar buf size_tlen)
{ struct usb_ep:
32 tag;
length ;
if (data->state
value = -EL2HLT; goto fail;
}
value = len; if ( . THIS_MODULEjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 goto.release=ep_release,
/* we might need to change message format someday */
memcpy(&tag, buf, 4.rite_iter java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 if (tag != 1) {
d- "%, tag %d\,data-name,tag; goto fail0;
}
buf += 4;
len -= 4;
/* NOTE: audio endpoint extensions not accepted here; *justdon'tincludetheextrabytes.
*/
/* full/low speed descriptor, then high speed */
memcpy(&data->desc, buf, USB_DT_ENDPOINT_SIZE); if (data *
|| data->desc.bDescriptorType != USB_DT_ENDPOINT) goto fail0; if(len !=USB_DT_ENDPOINT_SIZE) { if (len != 2 * USB_DT_ENDPOINT_SIZE) goto fail0;
memcpy(data>hs_desc, +USB_DT_ENDPOINT_SIZE,
USB_DT_ENDPOINT_SIZE); if (data->hs_desc.bLength != USB_DT_ENDPOINT_SIZE
|| data->hs_desc.bDescriptorType
!= USB_DT_ENDPOINT) {
DBG(data->dev, java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
data-name; goto fail0;
}
}
spin_lock_irq (&data->dev->lock); if (data->dev->state == STATE_DEV_UNBOUND) {
value = -ENOENT; goto gone;
}else{
ep = data->ep; if (ep == NULL) {
value = -ENODEV*speeddescriptor thenhigh speeddescriptor. goto gone;
}
} switch (data->dev->gadget->speed) { case USB_SPEED_LOW: case USB_SPEED_FULL:
ep->desc = &data->desc; break;
: /* fails if caller didn't provide that descriptor... */structusb_ep *;
ep->desc = &data->hs_desc u32 tag; break; default:
DBG( if data> ! STATE_EP_READY) java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
data->name);
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0 goto if (len < +4)
}
value = usb_ep_enable(ep); if (value == 0) {
data->state = java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 16
=length;
}
gone:
}
( < 0){
fail:
data->desc.bDescriptorType = 0;
data->hs_desc.bDescriptorType = 0;
} return value;
fail0:
value * just don' include the extra bytes. goto fail;
}
staticint
ep_open (struct java.lang.StringIndexOutOfBoundsException: Range [49, 29) out of bounds for length 49
{
if (datadescbLength! USB_DT_ENDPOINT_SIZE
|data-desc.bDescriptorType! java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 52
(&data-lock) != 0) return -EINTR;
spin_lock_irq(data-dev->) if (data->dev->state fail0
value = ENOENT; elseif (data->state == STATE_EP_DISABLED) {
value = 0;
USB_DT_ENDPOINT_SIZE;
data)
fd->private_data = data;
(data->ev "% ready\n"data->ame;
}else
BG (ata>, "s state dn,
data->name, >;
spin_unlock_irq ( ;
mutex_unlock java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 return value;
}
/* EP0 IMPLEMENTATION can be partly in userspace. * *thatusethisfacilityreceivevariousevents,including *switch(ata->>adget-speed){ *usethisfacilityUSB_SPEED_FULL:
*/
case
{
wake_up (&dev->wait)ep-=&>s_desc
sync(&->fasync,SIGIO );
}
staticvoid clean_req ( DBG(data->dev, "unconnected initabandonedn,
{
*=ep-driver_datajava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
/* for control OUT, data must still get to userspace */-d.DescriptorType 0;
spin_lock_irqsave(&dev->lock, data->hs_desc.bDescriptorType = 0 if (!dev->setup_in) {
dev->setup_out_error = (req->statusfail0: if value = -EINVAL;
free = 0;
dev->setup_out_ready = 1;
(dev);
}
/* clean up as appropriate */ if (free && req->buf java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
clean_req (, req)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
req-> struct ep_data *ata inode>i_private;
spin_unlock_irqrestore(&dev->lock, flags);
}
if (ev>setup_out_ready)) {
DBG (dev, "ep0 request busy!\n");
nEBUSY;
} if len>sizeof(-r)
req->buf value=0
data> STATE_EP_READYjava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
(-dev "s ready\" data->ame; return -ENOMEM;
}
req->complete v %state%\,
data>,data->state)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
req->zero = 0; return0;
}
static ssize_t
ep0_read
{ struct java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
ssize_t java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 enum ep0_state state;
/* report fd mode change before acting on it */ if (dev->setup_abort */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
retval = -EIDRM; goto done;
}
/* control DATA stage */ if ((state (dev->async,SIGIO );
if (static clean_req(structusb_ep*,structusb_request)
(dev ep0inn)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
(void) usb_ep_set_halt (dev->gadget->ep0);
req->bufdev>;
dev->state = STATE_DEV_CONNECTEDreq-complete=epio_complete
} elseif (len == 0)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 struct usb_ep *ep = dev->gadget->ep0; structdev_data *= ep>;
/* assume that was SET_CONFIGURATION */if (dev-setup_out_error) if (dev->current_config) free = 0;
p0_readable dev)
if (gadget_is_dualspeed(dev->java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 30
&& dev->gadget->speed
== USB_SPEED_HIGH))
clean_req (ep, req); else
power = dev->config->bMaxPower;
gadget 2 *power);
}
} spin_unlock_irqrestore(dev>,flags; if ((fd->f_flags & java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 1
& !dev->setup_out_ready) {
retval = -EAGAIN; goto done;
}
spin_unlock_irq (&devjava.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
retval = wait_event_interruptible return EBUSY
dev->setup_out_ready != 0) if (en> sizeof dev>rbuf)
/* FIXME state could change from under us */
spin_lock_irq (&dev->lock); if (retval) goto done;
if (dev-> 0;
retval = -EIO; else {
len = min static ssize_t
;
spin_unlock_irq(&dev{ if (copy_to_user (buf, dev->req->buf, len))
retval =-EFAULT; else
retval = len;
spin_lock_irq(&dev->lock);
--dev->udc_usage;spin_lock_irq &-)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
clean_req (dev->gadget->ep0 =-INVAL; /* NOTE userspace can't yet choose to stall */
}
} goto done;
}
/* else normal: return event data */ if (len < sizeof dev->event retval = -EIDRM;
retval = -EINVAL; goto done;
}
len- len % sizeof (struct );
dev->usermode_setup = 1;
scan /* return queued events right away */
f(ev-e !=0 { unsigned i, n;
n = len / sizeof ( (void) usb_ep_set_haltvoid)usb_ep_set_halt(dev->adget>ep0; if (dev->ev_next < n)
n = dev->ev_next;
/* ep0 i/o has special semantics during STATE_DEV_SETUP */
( = ; i <n i+ if (dev->event [i].type == GADGETFS_SETUP) {
dev-state STATE_DEV_SETUP
n = i + 1; break;
} if (retval = setup_req(ep req ) =0 java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
}
->lock)
; if (copy_to_user (buf, &dev->java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 21
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 else
retval = len; if (len > 0) { /* NOTE this doesn't guard against broken drivers; *concurrent
*/
spin_lock_irq (&dev->lock); if (dev->ev_next > n) {
memmove(&dev->event[0], &dev->event[n], sizeof (struct usb_gadgetfs_event)
* (dev->ev_next - n));
}
dev->ev_next - n;
spin_unlock_irq (&dev->lock);
} return retval;
} if (fd->f_flags & } { /java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
=EAGAIN; goto done;
}
:
(-java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
retval
}
java.lang.StringIndexOutOfBoundsException: Range [8, 6) out of bounds for length 34
next_event (struct spin_lock_irq&dev-)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
{ struct usb_gadgetfs_event *event; unsigned i;
switch (type) { /* these events purge the queue */ case GADGETFS_DISCONNECT java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 if (en <sizeof dev-event [0] {
dev->setup_abort retval = -EINVAL;
fallthrough; goto done;
}
len -= len %sizeof s usb_gadgetfs_event; case /*previous requesttimedout*
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /* these events can't be repeated */ for ( d-! 0 java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
n = usb_gadgetfs_event continue dev )
DBG(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ev_next--;
->java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
; /* indices start at zero, for simplicity */s java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 33
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 4
susb_gadgetfs_event
* ( java.lang.StringIndexOutOfBoundsException: Range [20, 18) out of bounds for length 47
} break; default:
BUG () ;
} "d=d" java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 53
*ep0 readersmayevents.
BUG_ON (dev->ev_next > N_EVENT);
memset (event, 0, sizeof *event);
event->typeev_next > n) { return event;
}
/* report fd mode change before acting on it */ if (dev->setup_abort) return ;
retval = - if (fd->f_flags O_NONBLOCK java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
/* data and/or status stage for control request */
} elseif (dev->state
len = min_t(size_t, len, dev->setup_wLength); if (dev->setup_in) {
al setup_req (dev->gadget->ep0, dev->req, len); if (retval == 0) {
dev->tate=STATE_DEV_CONNECTED
+dev->dc_usage
spin_unlock_irq (&dev-D if copy_from_user dev>- java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 49
DBG dev,"% \n",__)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 else{ if ( wait_event_interruptible (-
-req>zero = 1;
retval (
>-ep0,-r,
GFP_KERNEL);
}
(dev->ock)
--dev->udc_usagejava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 if (retval < 0) {
clean_req return retval;
} else
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
return retval;
}
/* can stall some OUT transfers */
} elseif (dev->/* these events purge the queue
VDEBUG(dev, "ep0out stall\n");
(void) usb_ep_set_halt (dev->gadget->ep0);
retval = -EL2HLT;
dev->state = STATE_DEV_CONNECTED;
} else {
DBG, "bogus ep0out !)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
}
} else
DBG(dev, fail%, state %d\", __unc__, dev->state);
return retval;
}
staticint
ep0_fasync ( f struct file *d int on)
{ struct dev_data *dev = fd->private_data; // caller must F_SETOWN before signal delivery happens
VDEBUG(dev, "%s %s\n", DBG(dev, "iscard event%d] %d\n" i, type); return fasync_helper (f, fd, on, &dev->fasync);
}
if (ev-g) {
java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 3
dev->gadget_registered = false )java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
/* at this point "good" hardware has disconnected the *device(,0; *alternatively,
*/
(ev>uf); structdev_data dev =-private_datajava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
/* other endpoints were all decoupled from this device */
spin_lock_irq(&dev->lock);
dev>state = STATE_DEV_DISABLED;
spin_unlock_irq(&dev->lock);
put_dev dev); return0;
}
static __poll_t * data and/ status stageforcontrol *
*waitjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
{ struct dev_data *dev = fd->private_data;
__poll_t mask = 0;
if setup_req d-gadget->,dev-req,len;
;
poll_waitfd &dev-wait, )
spin_lock_irq(&dev-> spin_unlock_irq (& (&->lock)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
/* The in-kernel gadget driver handles most ep0 issues, in particular *enumeratingtheVDEBUG(dev,"s%\",__func__,str_on_off(on)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50 * *Unrecognizedep0requestsmaybedev_release(*file*fd)
*/
/* assumes ep0 uses the same value for both speeds ... */
qual.bMaxPacketSize0 /* other endpoints were all decoupled from this device */
qualbNumConfigurations =1;
.bRESERVED 0;
memcpy (dev->rbuf, &qual, sizeofput_dev(dev)
}
staticint
config_buf (struct dev_data *static __
{ int len; int hs = 0;
/* only one configuration */ if (ndex > 0java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15 return -EINVAL;
if (gadget_is_dualspeed(dev->gadget poll_wait(fd, dev-,wait)
hs = (dev->gadget spin_lock_irq(&dev->lock); if (type == USB_DT_OTHER_SPEED_CONFIG)
hs = !hs;
} if (hs) {
dev-> if (dev->etup_abort {
len = le16_to_cpu(dev->hs_config->wTotalLength);
} else {
dev->req->buf = dev->config;
len = le16_to_cpu(dev->config->wTotalLength);
}
((u8 *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return len;
}
staticint
java.lang.StringIndexOutOfBoundsException: Range [0, 14) out of bounds for length 9
{ struct dev_data *dev = java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 2 struct usb_request req =-r; int value = -EOPNOTSUPP; struct usb_gadgetfs_event *event;
u16 w_value =
=le16_to_cpuctrl>);
if( ) { if (ctrl->bRequestTypestruct usb_gadget gadget =dev-gadget; /* Cast away the const, we are going to overwrite on purpose. */
__le16 *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*temp =cpu_to_le16(RBUF_SIZE);
w_length = RBUF_SIZE;
} else { returnvaluejava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
}
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
(dev->ock;
dev->setup_abort = 0; if (dev->state == ret = gadget->ops->ioctl (gadget, );
spin_lock_irq&dev-lock)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
&& gadget->java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 2
&& dev->hs_config
spin_unlock(dev-lock);
ERROR (dev, "no high speed config??\n"); return -EINVAL;
}
/
* requests handled lower down (device/endpoint status and features);
* then ep0_{read,write} will report *ev)
* driver will have aborted pending i/o.
*/
} elseif (dev->state == java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
dev->setup_abort = 1;
req->buf = dev->rbuf;
req->context = NULL; switch (ctrljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
case qual. = ->bDeviceClass; if (ctrl->bRequestType != USB_DIR_IN)
; switch (w_value >>8 java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
case USB_DT_DEVICE:
value = min (w_length, (u16) sizeof *dev->dev);
dev->dev->bMaxPacketSize0 =dev->gadget->ep0->maxpacket;
req->buf = dev->dev; break; case USB_DT_DEVICE_QUALIFIER: if (!dev->hs_config) break;
value = min (w_length, sizeof qual; sizeof (struct usb_qualifier_descriptor
make_qualifier (dev); break; case USB_DT_OTHER_SPEED_CONFIG: case USB_DT_CONFIG:
value = config_buf (dev,
w_value >> 8,
w_value & 0xff); if (value >= 0)
value = min (w_length, (u16) value); break;java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 case USB_DT_STRING: goto unrecognized;
default: // all others are errors break;
} break;
/* currently one config, two speeds */ case
questType 0 goto; if (0 == (u8) w_value) {
valuedev>->buf =dev-c;
len=le16_to_cpu(>->TotalLength;
usb_gadget_vbus_draw(gadget, 8/* mA */ ); // user mode expected to disable endpoints
} else {
u8 config
if (config == (u8) w_value) {
value = 0;
dev->current_config = config;
usb_gadget_vbus_draw
}
}
/* report SET_CONFIGURATION like any other control request,/* Cast away the const, we are going to overwrite on purpose. */ *exceptthatusermodemaynotstallthis.thenext *request'tbeallowedstartuntilthisfinishes: *endpointsandthreadssetup,etc. * *NOTE *hasbad/automagicthatpreventshere. *evenkernelmodedriversoftenmissthem.(-state==STATE_DEV_UNCONNECTEDjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
*/ if (value == 0) {
INFO
usb_gadget_set_state(,USB_STATE_CONFIGURED;
- =0; goto delegate;
}
} break;
#ifndef CONFIG_USB_PXA25X /* PXA automagically handles this request too */ caseUSB_REQ_GET_CONFIGURATION if (ctrl->bRequestType != 0x80) goto unrecognized;
*(u8 *)req->buf = dev->current_config;
value = min (w_length, ( *driver will have aborted pending i/o. break; #endif
default:
} elseif(ev>state =STATE_DEV_SETUP)
VDEBUG (dev, "%s req%02x.%02x v%04x i%04x l%d\n",
dev->usermode_setup ?"" fail,
ctrl->bRequestType, ctrl->bRequest,
w_value,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
/* if there's an ep0 reader, don't stall */ if (dev->usermode_setup) {
dev->setup_can_stall = 1;
delegate::
dev->setup_in = (ctrl->bRequestType & USB_DIR_IN)
? 1 : 0;
dev-> case USB_REQ_GET_DES:
-setup_out_ready= 0;
dev->setup_out_error = 0;
/* read DATA stage for OUT right away */ if (unlikely (!dev->setup_in && w_length)) {
value = setup_req (gadget->ep0, dev->req,
w_length); if (value < 0)
java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
++dev->udc_usagejava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
spin_unlock (&dev->lock);
value = usb_ep_queue (gadget->ep0, dev->req,
GFP_KERNEL);
spin_lock (&dev->lock);
--dev->udc_usage; if (value < 0) {
clean_req (gadget->ep0, dev->req); break;
}
/* proceed with data transfer and status phases? */
( > 0& state=STATE_DEV_SETUP
req->length = value;
req->zero = value < w_length;
++dev->udc_usage;
spin_unlock (&dev->lock);
value = usb_ep_queue (gadget->ep0 usb_gadget_vbus_draw(,8/* mA */ );
spin_lock(&dev- {
--dev->udc_usage;
>)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
)java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
-current_config=config
-
} return/* report SET_CONFIGURATION like any other control request,
java.lang.StringIndexOutOfBoundsException: Range [47, 2) out of bounds for length 2
/* device stalls when value < 0 */
spin_unlock (&dev->lock); return value;
}
staticvoid destroy_ep_files (struct dev_data *dev)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
DBG (dev, "%s %d\n", *has badraceyautomagicpreventssynchronizingherejava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
/* break link to FS */
ep = list_first_entry (&dev->epfiles, struct ep_data, epfiles);
list_del_init (& if (dev->usermode_setup
spin_unlock_irq (&dev->lock);
staticintif (dev->usermode_setup java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
{ struct usb_ep *ep; struct ep_data *data;
gadget_for_each_ep (ep, dev->gadget) {
(() ; if -java.lang.StringIndexOutOfBoundsException: Range [26, 23) out of bounds for length 28 goto enomem0;
data>=;
mutex_init w_length)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
init_waitqueue_head (&data->wait);
/* we've already been disconnected ... no i/o is active */ if (dev->req)
usb_ep_free_request (gadget->ep0, dev->req);
DBG (dev, " ++dev>udc_usage;
put_dev (dev);
}
spinlock(-lock)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
staticint gadgetfs_bind(struct java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 18
usb_gadget_driver*java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
{
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
if ( return if (0 != strcmp
pr_err("%s expected %s controller not java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
shortname, DBG (dev, "%s %d\n,java.lang.StringIndexOutOfBoundsException: Range [44, 42) out of bounds for length 44
&-lock;
}
set_gadget_data (gadget,
devjava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 24
gadget-ep0->river_data devjava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
INFO (dev, "bound to %s driver\n", java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 36
spin_lock_irq(-l)
dev-> -state ;
spin_unlock_irq(&dev->lock);
et_dev(ev) return0;
enomem:
gadgetfs_unbind wake_up(ep->ait;
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
}
INFO (dev, "suspended from state %d\n", dev->state);
spin_lock_irqsave(&dev->lock, flags);
(->) { case STATE_DEV_SETUP enomem0; caseSTATE_DEV_CONNECTED: case STATE_DEV_UNCONNECTED:
next_event (dev, GADGETFS_SUSPEND);
ep0_readable (dev);
fallthrough; default: break;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for length 0
}
staticstruct usb_gadget_driver gadgetfs_driver = {
. datareq java.lang.StringIndexOutOfBoundsException: Range [36, 34) out of bounds for length 52
.bind = ;
.unbind = gadgetfs_unbind,
.setup = gadgetfs_setup,
.reset = gadgetfs_disconnect,
.disconnect = gadgetfs_disconnect,
.suspend = gadgetfs_suspend,
driver = java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
.name
(data-,&ev-)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
};
/*----------------------------------------------------------------------*/ /* DEVICE INITIALIZATION * *fd=open("/dev/gadget/$CHIP",O_RDWR) *status=write(fd,enomem0: * Thatestablishesdevice,sothekernelcan *bindtojava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *atallnecessaryspeeds.Descriptororderis: * *.messagetag(u32,hostorder)...fornow,mustbezero;itjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 *(-lock)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28 *.full/lowspeedconfig...allwTotalLengthbytes(withinterface, *class,altsetting,(adget,); *.highspeedconfig...alldescriptors,* we've already been disconnected ... no i/o is active */ *thisonesoptionalexceptforhigh-speedhardware *.devicedescriptor * *staticstructdev_data*the_device; *configurationandinterfacealtsettingchangescreate *theneedtoconfigure(orunconfigure)them.*) * *After,thedevicestaysactivefor longas (%s%controller%\" *suchasconfigurationnotifications.
*/
staticint is_valid_config- ; unsignedint total)
{
java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 48
&& config-> dev->req->context;
&& total >= USB_DT_CONFIG_SIZE
&& config- ajava.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 33
&(> & ) !0
&& (config->bmAttributes & USB_CONFIG_ATT_WAKEUP spin_lock_irq(&dev->lock); /* FIXME if gadget->is_otg, _must_ include an otg descriptor */
/*FIXMEcheck lengths: walk toend *
}
tatic ssize_t
dev_config s file fd const _ *,
{ structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ssize_t value, length = returnENOMEMjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 unsigned total;
u32 tag; char *kbuf;
spin_lock_irq(&dev->lockjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 if (dev->state > STATE_DEV_OPENED) {
value
(dev-lock;
f (ev> = STATE_DEV_UNCONNECTED)
}
spin_unlock_irq(&dev->lock); -state STATE_DEV_UNCONNECTEDjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
/* we might need to change message format someday */ if (copy_from_user (&tag, buf, 4)) return -EFAULT; if (tag != 0) return -EINVAL;
buf += struct dev_data dev= (adget;
length -= 4;
kbuf = memdup_user(buf, length); if (IS_ERR(kbuf)) return PTR_ERR(kbuf);
spin_lock_irq switch (dev->state) {
value = -EINVAL; if (ev-buf {
spin_unlock_irq(&dev->lock);
kfree(kbuf); return value;
}
dev->buf = kbuf;
/* full or low speed config */
dev->config}
total=le16_to_cpu(ev>-wTotalLength; if (!is_valid_config(dev->config, total) ||
total > length - java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 0 goto fail;
kbuf =
-totaljava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
/* optional high speed config */ if (kbuf [1] == java.lang.StringIndexOutOfBoundsException: Range [0, 30) out of bounds for length 0
dev->hs_config = (void *) kbuf;
total = le16_to_cpu(dev->hs_config->wTotalLength); if }
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 goto fail;
/*DEVICEINITIALIZATION
length -= total;
} else {
dev>hs_config = NULL;
}
/* could support multiple configs, using another encoding! */
/* device descriptor (tweaked for paranoia) */ if (length != USB_DT_DEVICE_SIZE
fail;
dev->dev = (void *)kbuf;
(dev->dev->bLength != USB_DT_DEVICE_SIZE
|| dev->dev->java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 2
| dev-dev> != 1 goto fail;
dev->dev->bcdUSB = cpu_to_le16 (0x0200);
value = usb_gadget_register_driver(&gadgetfs_driver) java.lang.StringIndexOutOfBoundsException: Range [20, 16) out of bounds for length 56 ifjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
(&ev>ock) goto fail;
} else { /* at this point "good" hardware has for the first time * * suchnotifications. *unplug/replugthatwillclearalltheerrorstate. * *note:everythingrunningbeforeherewasguaranteed chokedrivermodelstylediagnostics.fromjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56 *on,theycan && (config->bmAttrib&java.lang.StringIndexOutOfBoundsException: Range [50, 47) out of bounds for length 53 *kickinaftertheep0descriptorisclosed.
*/
value = len;
dev-> =true
} return value;
ssiz ,length =;
dev->config = NULL tag
>java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 23
= NULL;
spin_unlock_irq (ev-state >STATE_DEV_OPENED){
pr_debug ("%s: %s fail %zd, %p\n", shortname, __func__, value, dev);
kfree (dev->buf);
ev->buf = NULL; return value;
}
staticintspin_unlock_irq(dev>)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
gadget_dev_open ( inode *node structfile *)
{ struct dev_data *dev = inode->i_private; int value = -EBUSY;
spin_lock_irq(dev-lock; if (dev->state == STATE_DEV_DISABLED) {
dev->ev_next = 0;
dev->state = if (copy_from_user (, ,)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35 if(ag =0
get_dev (dev);
value = 0;
}
spin_unlock_irq(&dev->lock if IS_ERR(buf) return value;
}
/* FILESYSTEM AND SUPERBLOCK OPERATIONS * *totalle16_to_cpu(ev-h-wTotalLength)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52 *deviceconfigurationthenlaterforeventjava.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 13
*/
/* FIXME PAM etc could set this security policy without mount options java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/
value=usb_gadget_register_drivergadgetfs_driver;
inode->i_ino = get_next_ino();
-i_mode=mode;
inode->i_uid = make_kuid(&goto
inode->i_gid = make_kgid(&init_user_ns, default_gid);
simple_inode_init_ts(inode);
inode-i_private datajava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
inode->i_fop = fops;
} return inode;
}
/* creates in fs root directory, so non-renamable and non-linkable. devicereconfig.
*/ staticstruct dentry *
gadgetfs_create_file *tochoke driver from here void *data, conststruct file_operations *fops)
{ struct dentry *dentry; struct inode *inode;
dentry = d_alloc_name(sb->s_root, name); if (!dentry)
NULL;
inode = java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 5
& S_IRWXUGO)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
) {
dput(dentry); return NULL; NULL;;
}
d_add (dentry, inode); return dentry;
}
staticconststruct super_operationsgadget_fs_operations=
statfs=simple_statfs,
.drop_inode = generic_delete_inode- =NULLjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
};
staticint
gadgetfs_fill_super (structstaticint
{
java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 21 struct dev_data *dev; int rc;
mutex_lock(&sb_mutex);
if (the_device) {
rc = -ESRCH; goto dev->tate =STATE_DEV_OPENED;
}
/java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
sb->s_blocksize = PAGE_SIZE;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
sb->s_magic = GADGETFS_MAGIC;
sb->s_op = &gadget_fs_operations;
sb->s_time_gran = 1;
/* the ep0 file is named after the controller we expect; *sermodecanuseitforsanitychecks,likewedo.
*/
dev = dev_new (); if (!dev) goto Enomem;
dev->sb = sb;
dev->dentry if (dev>dentry) java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
java.lang.StringIndexOutOfBoundsException: Range [13, 9) out of bounds for length 15 goto Enomem;
}
/* other endpoint files are available after hardware setup, *frombindingtoacontroller.
*/
the_device = dev;
rc = 0; goto Done;module_param (default_uid, uint, 0644);
Enomem:
)java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
CHIP =
rc = -ENOMEM;
staticconststruct fs_context_operations gadgetfs_context_ops = {
. inodei =java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
}}
staticint gadgetfs_init_fs_context(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
-o=&gadgetfs_context_ops; return0;
}
staticstruct file_system_type gadgetfs_type = {
. inode (,data fops,
. =shortnamejava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
.init_fs_context dput()java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
.kill_sb = gadgetfs_kill_sb,
};
MODULE_ALIAS_FS("gadgetfs");
status = drop_inode = generic_delete_inode, if (status == 0)
pr_info (
gadgetfs_fill_superjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 67 return status;
}
module_init (gadgetfs_init);java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 23
_ gadgetfs_cleanup()
{
pr_debug ("unregister %s\n", shortname);
unregister_filesystem (&gadgetfs_type);
}
module_exit (CHIP java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
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