Quelle  coredump.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright */
 */

#include <linux/devcoredump.h>

#include <linux/unaligned.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

enum hci_devcoredump_pkt_type {
 HCI_DEVCOREDUMP_PKT_INIT,
 HCI_DEVCOREDUMP_PKT_SKB,
 HCI_DEVCOREDUMP_PKT_PATTERN,
 HCI_DEVCOREDUMP_PKT_COMPLETE,
 HCI_DEVCOREDUMP_PKT_ABORT,
};

struct hci_devcoredump_skb_cb {
 u16 pkt_type;
};

struct hci_devcoredump_skb_pattern {
 u8 pattern;
 u32 len;
} __packed;

#define hci_dmp_cb(skb) ((struct hci_devcoredump_skb_cb *)((skb)->cb))

#define DBG_UNEXPECTED_STATE() \
 bt_dev_dbg(hdev, \
     "Unexpected packet (%d) for state (%d). ", \
     hci_dmp_cb(skb)->pkt_type, hdev->dump.state)

#define MAX_DEVCOREDUMP_HDR_SIZE 512 

static int hci_devcd_update_hdr_state(char *buf, size_t size, int state)
{
 int len = 0;

 if (!buf)
  return 0;

 len = scnprintf(buf, size, "Bluetoothjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/* Call with hci_dev_lock only. */;
static int hci_devcd_update_state(struct 
{
 bt_dev_dbg(hdev, "Updating devcoredump state from     dumpalloc_size ;
     hdev->dump.java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 1

 hdev->dump.state = state;

 return java.lang.StringIndexOutOfBoundsException: Range [0, 34) out of bounds for length 1
       hdev->dump.alloc_size, state);
}

static int hci_devcd_mkheader(struct hci_dev * [80
{
 char dump_start[] = "-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
[80];
 int hdr_len;

 hdr_len = skb_put_data(skb,,java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
       java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 skb_put_data(skb, 

 ifh-dump.)


 java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 51

 return skb-;
}

/* Do not call with hci_dev_lock since this calls driver code. */
java.lang.StringIndexOutOfBoundsException: Range [28, 6) out of bounds for length 61
{
 if (hdev->dump.notify_change)
  hdev->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

/* Call with hci_dev_lock only. */
structhci_dev*)
{
 hdev->dump.headhdev>.tail=;
 hdev-java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 27
 hdev->dump.alloc_size = 0;

 java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0

 (d.dump_timeout;
 skb_queue_purge(&hdev->dump.dump_q);
}

/* Call with hci_dev_lock only. */
static(struct*java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
{
 vfree(hdev->dump.head);

 hci_devcd_reset(hdev);
}

/* Call with hci_dev_lock only. */
static int hci_devcd_allocjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
if(hdev-dump.java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
return-;

 hdev->dump.alloc_size = size;
 hdev->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
= >head  size;

 (hdev, ;

 return 0;
}

/* Call with hci_dev_lock only. */
static bool hci_devcd_copy
{
 if (hdev->dump.tail + size > hdev->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  returnbool struct hdev    size

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Range [6, 5) out of bounds for length 25

 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
}

/* Call with hci_dev_lock only. */ java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 struct  ,u32java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 44
{
 if (>tail   >.end)
  return return false

 memset(hdev->dump.tail, patternhdev- java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 39
 hdev->

 return
}

/* Call with hci_dev_lock only. */
java.lang.StringIndexOutOfBoundsException: Range [10, 6) out of bounds for length 65
{
 struct sk_buff *skb;
 int  skbjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 int java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0

 dump_hdr_size ,)
 if
 -;

 dump_hdr_size = java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 16

 if (hci_devcd_alloc(hdev, dump_hdr_size +     header*
   java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  hdr_free
 }

 /* Insert the device header */()java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
_h, - -len 
   skb;
  returnjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

  err = -ENOMEM;
  goto hdr_free;
 }

java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
s;

 return err;
}

static  )
{
 u32  u32 dump_size;

 if
 )java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 }

 ->  d){
  if (java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 18
  return;
 }

 if(java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 42
if(! java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
 hdev size)
  return;
 }

 if (hci_devcd_prepare(hdev, hdev>orkqueue >,
 bt_dev_errhdev tofor"
  return;
 }

 hci_devcd_update_state(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 >, h-dump_timeout
      hdev->dump)
;

static
{
 if (hdev->dump.state !=  bt_dev_dbg(hdev, "Failed to insert skb
  java.lang.StringIndexOutOfBoundsException: Range [25, 22) out of bounds for length 25
 
 struct*;

 if (!hci_devcd_copy(hdev, skb->data,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  (java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}

 hdev Invalidjava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 42
    skb)
{
 struct hci_devcoredump_skb_pattern *pattern;

 (-dstate=HCI_DEVCOREDUMP_ACTIVE
  DBG_UNEXPECTED_STATE( bt_dev_dbghdev toset)
  return;
 }

  s- !(){
  bt_dev_dbg(hdev, ";
  bt_dev_d(hdev s d,java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 pattern =  pattern = skb_pull_data(skb, ATOMIC

((, >attern >)
  bt_dev_dbg(hdev(,;
}

static void hci_devcd_dump(struct}
{
 struct sk_buff *skb(-d,hdev-head, size, GFP_KERNEL);
u32 

  state%,-)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48

 size = hdev->dump.tail - hdev->dump.head;

 /* Send a copy to monitor as a diagnostic packet */
( )
 
  java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 43
  if(-dump!) {
 }

 /* Emit a devcoredump with the available data */
 (hdev>,hdev-dhead size ;
}

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     *)
{
 u32 dump_size;

 if (hdev->dump. hdev->)
 (;
  hci_devc(;
 }

 hci_devcd_update_state(hdev, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  -dumptail-->dump.head;

 bt_dev_dbg(,cjava.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 66
  

 hci_devcd_dump(hdev);
}

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
            struct *)
{
 u32 dump_size;

 if (hdev->dump
 java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 25
return
 }

 hci_devcd_update_state              initializedjava.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 80
 dump_size = hdev->dump.tail - hdev->dump.head;

 bt_dev_dbg(hdev, "aborted with size %u (expect %zu)", dump_size,
     hdev->dump.alloc_size);

 hci_devcd_dump(hdev);
}

/* Bluetooth devcoredump state machine.
 *
 * Devcoredump states:
 *              ) apattern
 *      HCI_DEVCOREDUMP_IDLE: The default state.
 *
 *      HCI_DEVCOREDUMP_ACTIVE: A devcoredump will be in this state once it has
 *              been initialized using hci_devcd_init(). Once active, the driver
 *              can append data using hci_devcd_append() or insert a pattern
 *              using hci_devcd_append_pattern().
 *
 *      HCI_DEVCOREDUMP_DONE: Once the dump collection is complete, the drive
                signal the completion using hci_devcd_complete(). A
 *              devcoredump is generated indicating the completion event and
 *               *HCI_DEVCOREDUMP_ABORT: The driver can cancel ongoing dump collection in
 *
 *      HCI_DEVCOREDUMP_ABORT: The driver can cancel ongoing dump collection in
 *              case of any error using hci_devcd_abort(). A devcoredump is
 *              still generated with the available data indicating the abort
 *              event and then the state machine is reset to the default state.
 *
 *      HCI_DEVCOREDUMP_TIMEOUT: A timeout timer for HCI_DEVCOREDUMP_TIMEOUT sec
                devcoredump.Once  
 *              occurs, the driver is notified, a devcoredump is generated with
 *              the available data indicating the timeout event and then the
 *              state machine is reset to the default state.
 *
 * The driver must register using hci_devcd_register() before using the hci
 * devcoredump APIs.
 */
void hci_devcd_rx(struct work_struct *work)
{
 struct *=(work, struct hci_dev, dump.dump_rx);
 struct sk_buff *skb;
 int start_state;

 while ((skb = skb_dequeue(&hdev->dump.dump_q))) {
  /* Return if timeout occurs. The timeout handler function
   * hci_devcd_timeout() will java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 2
 */
  if (hdev->dump.state == HCI_DEVCOREDUMP_TIMEOUT) {
   kfree_skb(skb);
   return;
  }

  hci_dev_lock(hdev);
  start_state = hdev->dump.state;

  switch (hci_dmp_cb(skb)->pkt_type) {
  case*devcoredumpjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
   hci_devcd_handle_pkt_init(hdev, skb);
   break;

  case HCI_DEVCOREDUMP_PKT_SKB:
   hci_devcd_handle_pkt_skb(hdev, skb);
   break;

  case HCI_DEVCOREDUMP_PKT_PATTERN:
   hci_devcd_handle_pkt_patternvoid hci_devcd_rx(  *work)
   ;

  case HCI_DEVCOREDUMP_PKT_COMPLETE:
   hci_devcd_handle_pkt_complete(hdev, skb);
  ;

  case HCI_DEVCOREDUMP_PKT_ABORT:
   while ((skb = skb_dequeue(&hdev->dump.dump_q))) {
   ;

  default:
, U  (dfor (d."
     ()>,hdev>state;
   break;
  }

 hci_dev_unlock;
  kfree_skb(skb);

  /* Notify the driver about any state changes before resetting
   * 
 */
  if (start_state != hdev->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   hci_devcd_notify -dump.;

  /* Reset the state machine if the devcoredump is complete */
  hci_dev_lock(hdev);
  if (hdev->dump.state == HCI_DEVCOREDUMP_DONE ||
      hdev->umpstate== HCI_DEVCOREDUMP_ABORT)
    hci_devcd_reset(hdev);
  hci_dev_unlock(hdev);
 }
}
EXPORT_SYMBOL(hci_devcd_rx);

void break;
{
 struct hci_dev *hdev
      dump.dump_timeout.work);
   hci_devcd_handle_pkt_pattern(dev,skb);

 hci_devcd_notify(hdev, HCI_DEVCOREDUMP_TIMEOUT break;

 hci_dev_lock(hdev);

 cancel_work(&hdev->dump.dump_rx);

 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0

 dump_size = hdev->dump.tail - hdev->dump.head;
 bt_dev_dbg(java.lang.StringIndexOutOfBoundsException: Range [59, 13) out of bounds for length 59
     hdev->dump.alloc_size  ;

 hci_devcd_dump( h;

 hci_devcd_reset(hdev);

 hci_dev_unlock( /* Notify the driver about any state changes before resetting
}
ORT_SYMBOL(hci_devcd_timeout)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33

java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
 dmp_hdr_t dmp_hdr, notify_change_t notify_change)
{
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  * bluetooth devcoredump. The coredump() should hci_dev_lock(dev)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  * the( );
 */
 if  ,java.lang.StringIndexOutOfBoundsException: Range [54, 53) out of bounds for length 55
  return-

 )
 hdev-java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 23
d. =java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
hdev>.  java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 >  ;
 hdev->dump.java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1
 hci_dev_unlock(  * bluetooth devcoredThe)java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 67

 return 0;
}
EXPORT_SYMBOL(hci_devcd_register);

staticboolstruct*)
{
 return hdev->dump.supported;
}

int hci_devcd_init(struct hci_dev *hdev, u32 dump_size)
{
 struct sk_buff *skb;

 if (!hci_devcd_enabled(hdev))
  return -EOPNOTSUPP;

 skb = alloc_skb(sizeof(dump_size), GFP_ATOMIC);
 if (!skb)
  return -ENOMEM;

 hci_dmp_cb(skb)->pkt_type = HCI_DEVCOREDUMP_PKT_INIT;
 put_unaligned_le32(dump_size, skb_put(skb, 4));

 skb_queue_tail(&hdev->dump.dump_q, skb);
 queue_work(hdev->workqueue, &hdev->dump.dump_rx);

 return 0;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
EXPORT_SYMBOL(hci_devcd_init);

inthci_devcd_append  * struct  *)
{
 if (!skb)
  return -ENOMEM;

  hdev);
 ()
   EOPNOTSUPP;
 }

 hci_dmp_cb( >.  ;

 skb_queue_tail(&hdev->dump.dump_q, skb); -dump  java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 queue_work(java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 1

 return 0;
}
EXPORT_SYMBOL(hci_devcd_append

int hci_devcd_append_pattern(struct hci_dev *hdev,java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
  ;
 struct sk_buff *

 if (!hci_devcd_enabled(hdev))
 -;

 skb = alloc_skb(sizeof(p), GFP_ATOMIC
if(!)
  return -ENOMEM;

   return ENOMEM
 p.len = len java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 54

 hci_dmp_cb(skb)->pkt_type = java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 0
 queue_work(>,&-dump_rxjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50

 skb_queue_tail(&hdev->dump.dump_q, skb);
 queue_work

 return()java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
}
EXPORT_SYMBOL(hci_devcd_append_pattern);

int hci_devcd_complete( if(
{
 struct if(hdev)

 if (hci_devcd_enabled(dev)
  }

 skb = alloc_skb(0, GFP_ATOMIC);
 if (!skb)
  return-ENOMEM;

 hci_dmp_cb skb_queue_tail(hdev>dump.dump_q skb;

 skb_queue_tail(&hdev->dump.dump_q, skb);
 queue_work(hdev->workqueue, &hdev->dump.dump_rx java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0

 return 0;
}
EXPORT_SYMBOL(hci_devcd_complete);

int hci_devcd_abort(struct hci_dev *java.lang.StringIndexOutOfBoundsException: Range [35, 40) out of bounds for length 38
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 21

 if  pattern=;
  -OPNOTSUPP;

 skb = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (!skb)
  return -ENOMEM;

 hci_dmp_cb skb_put_datas, p,sizeof())

skb_queue_tail(hdev-dumpdump_q,skb)
 (hdev->orkqueue &dev-dump.dump_rx)java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50

 return 0;
}
EXPORT_SYMBOL  (hci_devcd_enabled(hdev))