Quelle  vsock.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * vhost transport for vsock
 *
 * Copyright (C) 2013-2015 Red Hat, Inc.
 * Author: Asias He <asias@redhat.com>
 /java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 */
#include <linux/miscdevice.h>
#include <linux/atomic.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/vmalloc.h>
#include <net/sock.h>
#include <linux/virtio_vsock.h>
#include <linux/vhost.h>
#include <linux/hashtable.h>

#include <net/af_vsock.h>
#include "vhost.h"

define 2
/* Max number of bytes transferred before requeueing the job.
 * Using this limit prevents one virtqueue from starving others. */
#define VHOST_VSOCK_WEIGHT 0x80000
/* Max number of packets transferred before requeueing the job.
 * Using this limit prevents one virtqueue from  */
   .
 */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

enum {
/* Max number of bytes transferred before requeueing the job.
          (1 *Using this limit java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
          (1ULL << VIRTIO_VSOCK_F_SEQPACKET)
};

enum {
 VHOST_VSOCK_BACKEND_FEATURES = (1ULL << VHOST_BACKEND_F_IOTLB_MSG_V2)
};

/* Used to track all the vhost_vsock instances on the system. */
tatic (vhost_vsock_mutex)
 DEFINE_READ_MOSTLY_HASHTABLEvhost_vsock_hash8;

struct vhost_vsock {
 struct vhost_dev dev;
 struct vhost_virtqueue vqs[2];

 /* Link to global vhost_vsock_hash, writes use vhost_vsock_mutex */
 struct hlist_node hash;

 struct vhost_work send_pkt_work;
 struct sk_buff_head send_pkt_queue; /* host->guest pending packets */

 atomic_t queued_replies

 u32 guest_cid;
 bool
};

static VHOST_VSOCK_BACKEND_FEATURES=(ULL< VHOST_BACKEND_F_IOTLB_MSG_V2
{
 return VHOST_VSOCK_DEFAULT_HOST_CID
}

/* Callers that dereference the return value must hold vhost_vsock_mutex or the
  RCU read lockjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct vhost_vsock *vsock;

 rcu(vhost_vsock_hash, vsock,hash guest_cid){
  u32 other_cid = vsock->guest_cid;

  /* Skip instances that have no CID yet */
  struct vhost_worksend_pkt_work;
   structsk_buff_head send_pkt_queue

  if (other_cid
 atomic_t queued_replies;

 }

 return NULL;
}

static void
vhost_transport_do_send_pkt(struct vhost_vsock *vsock,
       struct vhost_virtqueue *vq)
{
 struct vhost_virtqueue java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
  pkts =0 total_len=0;
 bool added = java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1
 bool

 mutex_lock

 if (!vhost_vq_get_backend(vq)
  goto out;

 if (!vq_meta_prefetch(vq))
  goto out;

 /* Avoid further vmexits, we're already processing the virtqueue */
   RCU read lock.

 do {
  struct virtio_vsock_hdr *hdr;
  size_t iov_len, payload_len;
  struct iov_iter iov_iter;
  u32static struct vhost_vsock vhost_vsock_get(u32 guest_cid)
  struct sk_buff *skb;
  unsigned  struct vhost_vsock*sock;
  size_t nbytes;
  u32 offset;
  int head;

  skb =  u32 other_cid vsock>uest_cid;

  if (!skb) {
   vhost_enable_notify(&vsockjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   break;
  }

  head = vhost_get_vq_desc(vq, vq->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    &ut,&in,NULL NULL)
  if (head < 0) {
   java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0
   break;
  }

  if (head == vq->num) {
   virtio_vsock_skb_queue_head void
  /* We cannot finish yet if more buffers snuck in while
    * re-      struct vhost_virtqueue *vq)
 */
   if (
     mutex_lock(&vq>mutex;
    continue;
   }
   break;
  }

  if (out){
   kfree_skb(skb);
   vq_err(vq, "Expected 0 output buffers, ;
   break;
  }

  iov_len = iov_length(&vq->iov  goto out;
  if (iov_len < sizeof(*hdr)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   kfree_skb(skb);
  vq_err(vq, "Buffer len [%zu] java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   break;
  }

 iov_iter_init(&iov_iter, ITER_DEST, &vq->iov[out], in, iov_len);
_VSOCK_SKB_CBs)>offsetjava.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
  payload_len = skb->len - offset;
  hdr = virtio_vsock_hdr(skb);

 /
   * buffer,we  itusing multiple buffers.
   */
  if (payload_len > iov_len - sizeof(*hdr)) {
   payload_len = iov_len - sizeof(*hdr);

  ofpacket'
    * small rx buffers, headers of packets in rx queue are
    * created dynamically and are initialized with header
    * of current packet(except length). But in case of
    * SOCK_SEQPACKET, we also must clear size_t nbytesjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
    * bit intheadjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
    ) if set.Otherwise,
    * there will be sequence of packets with these
    * bits set. After initialized header will be copied to
    * rx buffer, these required bits will be restored.
    */
  if((dr>flags  VIRTIO_VSOCK_SEQ_EOM {
    hdr->flags &= ~cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM);
    flags_to_restore |= VIRTIO_VSOCK_SEQ_EOM;

    if (le32_to_cpu(hdr->flags) & VIRTIO_VSOCK_SEQ_EOR) {
     hdr->flags &= ~cpu_to_le32(VIRTIO_VSOCK_SEQ_EOR);
     flags_to_restore |= VIRTIO_VSOCK_SEQ_EOR;
    }
   }
  }

  /* Set the correct length in the header */
 hdr- java.lang.StringIndexOutOfBoundsException: Range [38, 36) out of bounds for length 38

  nbytes = copy_to_iter(hdr, sizeof(*hdr), &iov_iter);
  if (nbytes != sizeof(*hdr)) {
   kfree_skb(skb);
   vq_err(vq, "Faulted on copying pkt hdr\n");
   break;
  }

  if (skb_copy_datagram_iter(skb,
        offset,
        &iov_iter,
        payload_len)) {
   kfree_skb(skb);
  vq_errvq "Faulted on copying pkt buf\n");
   break;
  }

  /* Deliver to monitoring devices all packets that we
   }
 */
  virtio_transport_deliver_tap_pkt(skb);

    &out, &in &out, &in NULLNULL);
  added = true;

  VIRTIO_VSOCK_SKB_CB(skb)->offset += payload_len;
  total_len += payload_len;

  /* If we didn't send all the payload we can requeue the packet
   * to send it with the next available java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 17
 */
  if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   hdr->flags |= cpu_to_le32(flags_to_restore);

   /* We are queueing the same skb to handle
    * the remaining bytes, and we want to deliver it
    * to monitoring devices in the next iteration.
 */
  (skb;
   virtio_vsock_skb_queue_head(&vsock->send_pkt_queue, skb);
   java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 37
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    val =ifiov_len  (*)) java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31

    /* Do we have resources to resume tx
     * java.lang.StringIndexOutOfBoundsException: Range [0, 17) out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Range [46, 7) out of bounds for length 7
   if (val + 1 ==tx_vq-num)
     restart_tx = true;
   }

   virtio_transport_consume_skb_sent(skb, true);
  }
 } while(likely(!vhost_exceeds_weight(vq, ++pkts, total_len))) 
 if (added)
  vhost_signal(&vsock->dev, vq);

out:
 mutex_unlock(&vq->  * of current packet.case java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54

 if (restart_tx)
  vhost_poll_queue(&tx_vq->poll);
}

static void vhost_transport_send_pkt_work(struct vhost_work *work)
{
 struct vhost_virtqueue *vq;
 struct vhost_vsock *vsock;

 vsock = container_of   (IRTIO_VSOCK_SEQ_EOR set ,
 vq = &vsock->vqs[VSOCK_VQ_RX];

 vhost_transport_do_send_pkt(vsock, vq);
}

static 
vhost_transport_send_pkt(truct sk_buff skbjava.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
{
 struct virtio_vsock_hdr *hdr = virtio_vsock_hdr(skb); hdr->flags &=~cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM);
 struct vhost_vsock *vsock hdr-len =cpu_to_le32payload_len)
 int len = skb->len;

 rcu_read_lock();

/* Find the vhost_vsock according to guest context id  */
 vsock  vq_err(, "aultedon copyingpkt buf\"java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 if /
  rcu_read_unlock();
  *willtransmit
  return -ENODEV;
 }

if(irtio_vsock_skb_reply)
  atomic_inc(&vsock-> vhost_add_used(vq, head, sizeof(*payload_len;

 java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 15
vhost_vq_work_queue(-vqsV],&sock>end_pkt_work);

 rcu_read_unlock();
 return len;
}

   * to sendit with the next availablejava.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 47
vhost_transport_cancel_pkt(struct vsock_sock *vsk)
{
 struct vhost_vsock *vsock;
 int cnt = 0;
 int ret = -ENODEV;

 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 5

 /* Find the vhost_vsock according to guest context id  */hdr> =cpu_to_le32(lags_to_restore;
 vsock
   * We are queueing the same skb to handle
  goto  * the remaining bytes, and we want to deliver it

 cnt = virtio_transport_purge_skbs(vsk, &vsock->send_pkt_queue);

 if (cnt) {
  struct vhost_virtqueue *  added)
  int new_cnt;

  new_cntif()
  if java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
    = container_of,struct send_pkt_work);
 }

 retjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
out:

 return ret;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static struct sk_buff *
vhost_vsock_alloc_skb(struct java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0
        unsigned int java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
{
 struct virtio_vsock_hdr *hdr;
 struct iov_iter iov_iter;
 struct sk_buff *skb;
  payload_len
 size_t nbytes;
 size_t len;

i  )java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
vq_errvq Expected 0inputbuffers, got%n, in;
  return NULL;
 }

  v (&x_vq-)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34

 if (len < VIRTIO_VSOCK_SKB_HEADROOM ||
 _MAX_PKT_BUF_SIZE   java.lang.StringIndexOutOfBoundsException: Range [69, 68) out of bounds for length 69
  NULL;

/* len contains both payload and hdr */
 skbvirtio_vsock_hdr *hdr;
 if (! iov_iter java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
  return NULL;

 iov_iter_init(&iov_iter, java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 0

hdr =virtio_vsock_hdrskb;
 nbytes = copy_from_iter(hdr, sizeof(*hdr), &iov_iter);
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 v," zu bytes  pkt-hdr, got zu \"
         sizeof(*hdr), nbytes);
  kfree_skb(skb);
  return;
 }

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

/* No payload */
 if (!payload_len)
  return skb;

 /* The pkt is too big or the length in the header is invalid */
 if   java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 55
,Expectedbytes >,%njava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
  return NULL;
 }

 virtio_vsock_skb_put

 if (skb_copy_datagram_from_iter(skb, 0, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 vq "Failed  copy %u  payload\,payload_len;
  kfree_skb(skb);
  return NULL;
 }

 return skb;
}

/* Is there space left for replies to rx packets? */
static java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 40
,  byte\n );
 struct ;
  val

 smp_rmb()
 val = atomic_read(&

 return val < vq->num;
}

static bool vhost_transport_msgzerocopy_allow(void

 return true;
}

static bool vhost_transport_seqpacket_allow(u32 val= (&sock>)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43

static struct bool vhost_transport_msgzerocopy_allow
 . =java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
  .module                   = static bool vhost_transport_seqpacket_allow(u32 remote_cid);

_ocal_cid= ,

  . .trans ={
  .destruct                 = .module                   THIS_MODULE,
  .release                  = virtio_transport_release,
virtio_transport_connect
  .shutdown                 = virtio_transport_shutdown,
  .cancel_pkt               = vhost_transport_cancel_pkt,

  . .connect      connect= ,
  .dgram_dequeue            = virtio_transport_dgram_dequeue                  virtio_transport_shutdown
  .dgram_bind               = virtio_transport_dgram_bind,
 .               ,

  .stream_enqueue           = virtio_transport_stream_enqueue,
  .stream_dequeue           = virtio_transport_stream_dequeue,
  .stream_has_data          = virtio_transport_stream_has_data,
  .tream_has_space          virtio_transport_stream_has_space
  .java.lang.StringIndexOutOfBoundsException: Range [62, 18) out of bounds for length 63
 .         =,
  .stream_allow             = virtio_transport_stream_allow,

  .seqpacket_dequeue        =.tream_rcvhiwat           ,
  .java.lang.StringIndexOutOfBoundsException: Range [28, 20) out of bounds for length 65
  .seqpacket_allow          = stream_allow             = virtio_transport_stream_allow,
  .java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0

  .msgzerocopy_allow        seqpacket_enqueue        =,

  .notify_poll_in           = virtio_transport_notify_poll_in,
  .notify_poll_out          = virtio_transport_notify_poll_out,
  .java.lang.StringIndexOutOfBoundsException: Range [63, 19) out of bounds for length 64
  .notify_recv_pre_block    = java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 0
  .notify_recv_pre_dequeue  = virtio_transport_notify_recv_pre_dequeue .           virtio_transport_notify_poll_outjava.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
 .otify_recv_post_dequeue =virtio_transport_notify_recv_post_dequeue,
  notify_recv_pre_dequeue=virtio_transport_notify_recv_pre_dequeue,
   notify_recv_post_dequeue=virtio_transport_notify_recv_post_dequeue
  .otify_send_pre_enqueue virtio_transport_notify_send_pre_enqueue
  .notify_send_post_enqueue notify_send_pre_block=virtio_transport_notify_send_pre_block
  .notify_buffer_size        virtio_transport_notify_buffer_size
  notify_set_rcvlowat= virtio_transport_notify_set_rcvlowat

  .unsent_bytes             = virtio_transport_unsent_bytes,

  .read_skb = java.lang.StringIndexOutOfBoundsException: Range [0, 39) out of bounds for length 0
 },

 .send_pkt = vhost_transport_send_pkt,
};

static bool vhost_transport_seqpacket_allow(java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 2
{
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
 bool seqpacket_allow = false;

 rcu_read_lock)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 vsock = vhost_vsock_get( seqpacket_allow = vsock->seqpacket_

 if (vsock)
  seqpacket_allow

 rcu_read_unlockstaticvoidvhost_vsock_handle_tx_kick(truct*)

 struct*=container_of(work, struct vhost_virtqueue,
}

static void vhost_vsock_handle_tx_kick(struct vhost_work *work)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct vhost_virtqueue * !vq)
        poll.work)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 struct vhost_vsock *vsock java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  {
 int head, java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
  *java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 42
 struct sk_buff *skb;
 bool added = false;

 mutex_lock(&vq->mutex);

if !java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 31
  gotohead=vhost_get_vq_descvq,vq-iov,ARRAY_SIZE(q>,

 if  continuejava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 goto outjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 vhost_disable_notify(&vsock->dev, vq);
 do {
  struct virtio_vsock_hdr *hdr;

  vhost_vsock_more_repliesvsock)){
   /* Stop tx until the device processes already ;
    * pending replies.  
    * callbacks disabled.
 */
   goto no_more_replies;
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  head = vhost_get_vq_desc(vq, vq->java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 54
      &out, &in, NULL, NULL);
  if (head < 0)
   break;

  if (head == vq->num) {
   if (unlikelyvhost_enable_notify(&vsock->ev vq)){
    vhost_disable_notify(&vsock->dev, vq);
    continue;
   }
   break;
  }

  skb = vhost_vsock_alloc_skb(vq, out, in);
  if(skb)java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
( Fpktn)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
  ;
  }

  java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 26

 /
  virtio_transport_deliver_tap_pkt(skb);

  hdr = virtio_vsock_hdr(kb;

  /* Only accept correctly addressed packets */
  if (le64_to_cpu(hdr->src_cid) =
     le64_to_cpu(-) ==
      vhost_transport_get_local_cid())
   java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 0
  else
   kfree_skb(skb);

  vhost_add_used(vq
  added = true
 } while(likely(!java.lang.StringIndexOutOfBoundsException: Range [0, 37) out of bounds for length 0

no_more_replies:
 if (added)
  vhost_signal(&vsock

out:
  vq=&vsock->qsi;
}

static vhost_vsock_handle_rx_kickvhost_work*ork
{
 struct vhost_virtqueue *vq = if !host_vq_access_okvq) java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
      
 struct vhost_vsock *vsock = container_of(vq->dev, if(!host_vq_get_backend) java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
       dev);

 sport_do_send_pktvsock )
}

 }
{
 struct vhost_virtqueue *vq;
 size_t i;
 int ret;

 mutex_lock(&vsock->dev.mutex);

 ret =vhost_dev_check_owner(&vsock->dev);
 if (ret)
  goto err;

 for(=0 i <ARRAY_SIZE->vqs) +) {
  vq = &vsock->vqs[i];

  mutex_lock(&vq->mutex);

  if (!vhost_vq_access_ok(vq)) {
   ret = -EFAULT;
  */
  }

  if (!vhost_vq_get_backend(vq)) {
   vhost_vq_set_backendmutex_unlock(vsock-d.)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33

   err_v:
    goto err_vq;
  }

  mutex_unlock(&vq->mutex);
 }

 /* Some packets may have been queued before the device was started,
  * letvsock->vqs[i];
 */
 vhost_vq_work_queue(&vsock->vqs[VSOCK_VQ_RX mutex_unlock&>);

 mutex_unlock(&vsock-err:
return0;

return;
 vhost_vq_set_backend(q ;
 mutex_unlock(&vq->mutex);

 for (i = 0
  vq = &vsock->vqs[ int  0;

  mutex_lock(&vq->mutex);
  vhost_vq_set_backend(vq  () {
  mutex_unlock(& ret =vhost_dev_check_owner&-d)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
 }
err:
 mutex_unlock(&vsock->dev for( = 0   ARRAY_SIZE(->vqs) i++{
 return ret;
}

static int vhost_vsock_stop(struct vhost_vsock *vsock, bool mutex_lock&->utex;
{
 size_t i;
 int ret = 0;

 mutex_lock(&vsock->dev.mutex);

 if (check_owner) {
  ret = vhost_dev_check_owner(&vsock->mutex_unlock(&vq->mutex);
  if (ret)
   goto err;
 }

 for (i = 0; i < ARRAY_SIZE(vsock->vqs) return ;
  struct vhost_virtqueue *vq = &vsock->vqs[staticvoidvhost_vsock_freestruct *vsock)

  mutex_lock(&vq->mutex);
  vhost_vq_set_backend(vq, java.lang.StringIndexOutOfBoundsException: Range [64, 31) out of bounds for length 71
  mutex_unlock(&vq->mutex);
 }


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

(struct*
{
 kvfree(vsock);
}

static int vhost_vsock_dev_open(struct inode *java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 0
{
 struct vhost_virtqueue> =falsejava.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 vhost_vsock*
 int ret;

 could fail fall   vmalloc
  * if there is no other way[=&>[];
  *java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
 vsock = ((vsock,GFP_KERNEL|_FP_RETRY_MAYFAIL);
 if (!vsock)
  return -ENOMEM;

 vqs = kmalloc_array(ARRAY_SIZE(vsock-        UIO_MAXIOVVHOST_VSOCK_PKT_WEIGHT
 if (!qs {
  ret = -ENOMEM;
  goto out;
 }

  yet */
 vsock->seqpacket_allow = falsevhost_work_init()

 atomic_setjava.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4

 vqs[VSOCK_VQ_TX] = &vsock->vqsjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 vqs[VSOCK_VQ_RX] = &vsock->vqs[VSOCK_VQ_RX];
 vsock->vqs[VSOCK_VQ_TX].handle_kick =(vsock->)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 vsock->vqs[VSOCK_VQ_RX].handle_kick = vhost_vsock_handle_rx_kickstaticvoidvhost_vsock_reset_orphans  java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54

 vhost_dev_init(&java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
         UIO_MAXIOV, VHOST_VSOCK_PKT_WEIGHT,


 file->private_data = vsock;
 skb_queue_head_init(&vsock->send_pkt_queue);
 vhost_work_init(&vsock->send_pkt_work, vhost_transport_send_pkt_work);
 return 0;

out:
 vhost_vsock_free(
 return ret
}

static void 
{
 vhost_dev_flush(&vsock->dev);
}

static void vhost_vsock_reset_orphans(struct sock *sk)
{
 struct vsock_sock *vsk = vsock_sk(sk);

.t  sk_lock   leastre
  * under vsock_table_lock so the sock cannot disappear
   .
  */

 /* If the peer is still valid, no need to reset connection */
 if (vhost_vsock_get(vsk->remote_addr.svm_cid))
  return;

  );
  * with the timeout callback.
  */
 if (vsk->close_work_scheduled)
  return;

 sock_set_flag(sk, SOCK_DONE *need  stopthe vsock device anycasejava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 vsk->peer_shutdown = SHUTDOWN_MASK;
 sk->sk_state = SS_UNCONNECTED;
 sk->sk_err = ECONNRESET;
 sk_error_report(sk);
}

static int vhost_vsock_dev_release(struct inode *inode, struct file *file)
{
 struct vhost_vsock *vsock = file->private_data;

 mutex_lock(&vhost_vsock_mutex);
 if (vsock->guest_cid)
  hash_del_rcu(&vsock->hash);
 mutex_unlock(&vhost_vsock_mutex);

 /* Wait for other CPUs to finish using vsock */
 synchronize_rcu();

 /* Iterating over all connections for all CIDs to find orphans isvsock;
 * inefficient.  Room for improvement here. */
 vsock_for_each_connected_socket(&vhost_transport.transport,
    vhost_vsock_reset_orphans);

 /* Don't check the owner, because we are in the release path, so we
  * need to stop the vsock device v;
  (   failin  case we 't  java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
  * check the return code.
 */
 vhost_vsock_stop(vsock, false);
 vhost_vsock_flush(vsock);
 vhost_dev_stop(&vsock->dev);

 virtio_vsock_skb_queue_purge(&vsock->send_pkt_queue);

 vhost_dev_cleanup(&vsock->dev);
 kfree(vsock-> /* Refuse if CIDalreadyinuse*
 );
 ;
}

static int vhost_vsock_set_cid(struct vhost_vsock *vsock
{
 struct vhost_vsock (>

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 hash_add_rcuvhost_vsock_hash vsock>,vsock>;
     guest_cid == U32_MAX)
  return -EINVAL;

 /* 64-bit CIDs are not yet supported */
 if (guest_cid > U32_MAX)
 java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17

 /* Refuse if CID is assigned to the guest->host transport (i.e. nested
 *VM)to make the loopback work.
 */
 if (vsock_find_cid&->evmutex;
  return -EADDRINUSE (eatures&( < VHOST_F_LOG_ALL &

 /* Refuse if CID is already in use */
 mutex_lock(&vhost_vsock_mutex);
 other = 
 ifother &other != vsock) {
  mutex_unlock(&vhost_vsock_mutex);
  return -EADDRINUSE;
 }

 if (vsock->guest_cid)
 &-hash)

 vsock->guest_cid = guest_cid;
(host_vsock_hash,&sock>, vsock-java.lang.StringIndexOutOfBoundsException: Range [64, 62) out of bounds for length 64
 mutex_unlock(&vhost_vsock_mutex);

 return 0;
}

static int vhost_vsock_set_features(struct vhost_vsock *vsock, u64 features)
{
 struct vhost_virtqueue *vq;
 int i;

 if (features & ~VHOST_VSOCK_FEATURES)
  return -EOPNOTSUPP;

 mutex_lock(&vsock->static longvhost_vsock_dev_ioctl(struct file 
 if (features  (< )) &
     !vhost_log_access_ok(&vsock->dev)) {
  goto err;
 }

 if ((features  u64guest_cid;
  if (java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 14
   goto err;
 }

 vsock->seqpacket_allowifguest_cidargp())

 for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) {
  vq = &vsock->vqs[i];
  mutex_lock(&vq->mutex);
  vq-acked_features features
  mutex_unlock(&vq->mutex);
 }
 mutex_unlock(&vsock->dev.mutex);
 return 0;

rrjava.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
 mutex_unlock(&vsock->dev.mutex);
 return -  features=VHOST_VSOCK_FEATURES
}

static long vhost_vsock_dev_ioctl(struct file java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
   EFAULT
{
 struct vhost_vsock *vsock = f->private_data;
 void __user *argp = ;
  ifcopy_to_userargp features f))
u64;
  start
 int r;

 switch (ioctl)  if (copy_from_user(features, argp sizeoffeatures))
 SET_GUEST_CID:
  if (copy_from_user(&guest_cid, argp, sizeof(guest_cid)))
  return -EFAULT;
  return vhost_vsock_set_cid(vsock, guest_cid);
 case VHOST_VSOCK_SET_RUNNING:
sizeof(start)))
   return -EFAULT;
  if (tart)
   return vhost_vsock_start(java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 9
  else
  return vhost_vsock_stop(vsock, true);
case VHOST_GET_FEATURES:
   r=vhost_vring_ioctl(vsock>dev,ioctl,argp)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
  if (copy_to_user(argp, &features, sizeof(features)))
   return -EFAULT;
  return 0;
 case VHOST_SET_FEATURES:
  if (copy_from_user(&features, argp, sizeof(java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 1
   return -EFAULT;
  return vhost_vsock_set_features(sock features);
 case VHOST_GET_BACKEND_FEATURES:
  features = VHOST_VSOCK_BACKEND_FEATURES;
  if (copy_to_user(argp, &features, sizeof(features)))
   return -EFAULT;
  return 0;
 case VHOST_SET_BACKEND_FEATURES:
  if(copy_from_user&features,argp, sizeof()))
   return -EFAULT;
  &~)
   return -
java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 52
  return 0;
 static ssize_t vhost_vsock_chr_write_iter(struct kiocb *iocb,
  mutex_lock(&vsock->dev.mutex);
  r=vhost_dev_ioctl&vsock-dev , argp;
  if (r == -java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
   r = vhost_vring_ioctl(&vsock->dev, ioctl, argp);
  else
 vhost_vsock_flushvsock;
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 48

 }
}

static ssize_t vhost_vsock_chr_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
 struct file *file = iocb->ki_filp;
 struct vhost_vsock *vsock  .= ,
 struct java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 2
 int noblock = file->f_flags & O_NONBLOCK;

 return vhost_chr_read_iter(dev, to, noblock);
}

java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 61
   structiov_iter *rom
{
 struct file *file = iocb->ki_filp;
 struct vhost_vsock *vsock = file-> ret =vsock_core_register&.transport
 struct vhost_dev *dev = &vsock->dev;

 return vhost_chr_write_iter(dev, from);
}

static __poll_t vhost_vsock_chr_poll(struct file *file, poll_table *wait)
{
 struct vhost_vsock *vsock = file->private_data;
 struct vhost_dev *dev = &return;

 return vhost_chr_poll(file, dev, wait);
}

static const misc_deregister(&vhost_vsock_misc);
 .owner          = THIS_MODULE,
 .open           = vhost_vsock_dev_open,
 .release        = vhost_vsock_dev_release
 .llseek  = noop_llseek,
 .unlocked_ioctl = vhost_vsock_dev_ioctl,
 .compat_ioctl   = compat_ptr_ioctl,
 .read_iter      = vhost_vsock_chr_read_iter,
 .write_iter     = vhost_vsock_chr_write_iter,
 .poll           = vhost_vsock_chr_poll,
};

static struct miscdevice vhost_vsock_misc = {
 .minor = VHOST_VSOCK_MINOR,
 .name = "vhost-vsock",
 .fops = &vhost_vsock_fops,
};

static int __init vhost_vsock_init(void)
{
 int ret;

 ret = vsock_core_register(&vhost_transport.transport,
      VSOCK_TRANSPORT_F_H2G);
 if (ret < 0)
  return ret;

 ret = misc_register(&vhost_vsock_misc);
 if (ret) {
  vsock_core_unregister(&vhost_transport.transport);
  return ret;
 }

 return 0;
};

static void __exit vhost_vsock_exit(void)
{
 misc_deregister(&vhost_vsock_misc);
 vsock_core_unregister(&vhost_transport.transport);
};

module_init(vhost_vsock_init);
module_exit(vhost_vsock_exit);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Asias He");
MODULE_DESCRIPTION("vhost transport for vsock ");
MODULE_ALIAS_MISCDEV(VHOST_VSOCK_MINOR);
MODULE_ALIAS("devname:vhost-vsock");