*
* Copyright (C) International Business Machines Corp., 2002,2005
* Author(s): Steve French (sfrench@us.ibm.com)
- * Jeremy Allison (jra@samba.org) 2006.
- *
+ *
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
extern kmem_cache_t *cifs_oplock_cachep;
static struct mid_q_entry *
-AllocMidQEntry(const struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
+AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
{
struct mid_q_entry *temp;
rc = 0;
}
- /* Don't want to modify the buffer as a
- side effect of this call. */
- smb_buffer->smb_buf_length = smb_buf_length;
-
return rc;
}
unsigned int len = iov[0].iov_len;
unsigned int total_len;
int first_vec = 0;
- unsigned int smb_buf_length = smb_buffer->smb_buf_length;
if(ssocket == NULL)
return -ENOTSOCK; /* BB eventually add reconnect code here */
} else
rc = 0;
- /* Don't want to modify the buffer as a
- side effect of this call. */
- smb_buffer->smb_buf_length = smb_buf_length;
-
return rc;
}
-static int wait_for_free_request(struct cifsSesInfo *ses, const int long_op)
+int
+SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
+ struct kvec *iov, int n_vec, int * pRespBufType /* ret */,
+ const int long_op)
{
+ int rc = 0;
+ unsigned int receive_len;
+ unsigned long timeout;
+ struct mid_q_entry *midQ;
+ struct smb_hdr *in_buf = iov[0].iov_base;
+
+ *pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */
+
+ if (ses == NULL) {
+ cERROR(1,("Null smb session"));
+ return -EIO;
+ }
+ if(ses->server == NULL) {
+ cERROR(1,("Null tcp session"));
+ return -EIO;
+ }
+
+ if(ses->server->tcpStatus == CifsExiting)
+ return -ENOENT;
+
+ /* Ensure that we do not send more than 50 overlapping requests
+ to the same server. We may make this configurable later or
+ use ses->maxReq */
if(long_op == -1) {
/* oplock breaks must not be held up */
atomic_inc(&ses->server->inFlight);
return -ENOENT;
}
- /* can not count locking commands against total since
- they are allowed to block on server */
+ /* can not count locking commands against total since
+ they are allowed to block on server */
+ if(long_op < 3) {
/* update # of requests on the wire to server */
- if (long_op < 3)
atomic_inc(&ses->server->inFlight);
+ }
spin_unlock(&GlobalMid_Lock);
break;
}
}
}
- return 0;
-}
+ /* make sure that we sign in the same order that we send on this socket
+ and avoid races inside tcp sendmsg code that could cause corruption
+ of smb data */
+
+ down(&ses->server->tcpSem);
-static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf,
- struct mid_q_entry **ppmidQ)
-{
if (ses->server->tcpStatus == CifsExiting) {
- return -ENOENT;
+ rc = -ENOENT;
+ goto out_unlock2;
} else if (ses->server->tcpStatus == CifsNeedReconnect) {
cFYI(1,("tcp session dead - return to caller to retry"));
- return -EAGAIN;
+ rc = -EAGAIN;
+ goto out_unlock2;
} else if (ses->status != CifsGood) {
/* check if SMB session is bad because we are setting it up */
if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) &&
(in_buf->Command != SMB_COM_NEGOTIATE)) {
- return -EAGAIN;
+ rc = -EAGAIN;
+ goto out_unlock2;
} /* else ok - we are setting up session */
}
- *ppmidQ = AllocMidQEntry(in_buf, ses);
- if (*ppmidQ == NULL) {
- return -ENOMEM;
- }
- return 0;
-}
-
-static int wait_for_response(struct cifsSesInfo *ses,
- struct mid_q_entry *midQ,
- unsigned long timeout,
- unsigned long time_to_wait)
-{
- unsigned long curr_timeout;
-
- for (;;) {
- curr_timeout = timeout + jiffies;
- wait_event(ses->server->response_q,
- (!(midQ->midState == MID_REQUEST_SUBMITTED)) ||
- time_after(jiffies, curr_timeout) ||
- ((ses->server->tcpStatus != CifsGood) &&
- (ses->server->tcpStatus != CifsNew)));
-
- if (time_after(jiffies, curr_timeout) &&
- (midQ->midState == MID_REQUEST_SUBMITTED) &&
- ((ses->server->tcpStatus == CifsGood) ||
- (ses->server->tcpStatus == CifsNew))) {
-
- unsigned long lrt;
-
- /* We timed out. Is the server still
- sending replies ? */
- spin_lock(&GlobalMid_Lock);
- lrt = ses->server->lstrp;
- spin_unlock(&GlobalMid_Lock);
-
- /* Calculate time_to_wait past last receive time.
- Although we prefer not to time out if the
- server is still responding - we will time
- out if the server takes more than 15 (or 45
- or 180) seconds to respond to this request
- and has not responded to any request from
- other threads on the client within 10 seconds */
- lrt += time_to_wait;
- if (time_after(jiffies, lrt)) {
- /* No replies for time_to_wait. */
- cERROR(1,("server not responding"));
- return -1;
- }
- } else {
- return 0;
- }
- }
-}
-
-int
-SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
- struct kvec *iov, int n_vec, int * pRespBufType /* ret */,
- const int long_op)
-{
- int rc = 0;
- unsigned int receive_len;
- unsigned long timeout;
- struct mid_q_entry *midQ;
- struct smb_hdr *in_buf = iov[0].iov_base;
-
- *pRespBufType = CIFS_NO_BUFFER; /* no response buf yet */
-
- if ((ses == NULL) || (ses->server == NULL)) {
- cifs_small_buf_release(in_buf);
- cERROR(1,("Null session"));
- return -EIO;
- }
-
- if(ses->server->tcpStatus == CifsExiting) {
- cifs_small_buf_release(in_buf);
- return -ENOENT;
- }
-
- /* Ensure that we do not send more than 50 overlapping requests
- to the same server. We may make this configurable later or
- use ses->maxReq */
-
- rc = wait_for_free_request(ses, long_op);
- if (rc) {
- cifs_small_buf_release(in_buf);
- return rc;
- }
-
- /* make sure that we sign in the same order that we send on this socket
- and avoid races inside tcp sendmsg code that could cause corruption
- of smb data */
-
- down(&ses->server->tcpSem);
-
- rc = allocate_mid(ses, in_buf, &midQ);
- if (rc) {
+ midQ = AllocMidQEntry(in_buf, ses);
+ if (midQ == NULL) {
up(&ses->server->tcpSem);
- cifs_small_buf_release(in_buf);
- /* Update # of requests on wire to server */
- atomic_dec(&ses->server->inFlight);
- wake_up(&ses->server->request_q);
- return rc;
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
+ return -ENOMEM;
}
rc = cifs_sign_smb2(iov, n_vec, ses->server, &midQ->sequence_number);
atomic_dec(&ses->server->inSend);
midQ->when_sent = jiffies;
#endif
-
- up(&ses->server->tcpSem);
- cifs_small_buf_release(in_buf);
-
- if(rc < 0)
- goto out;
-
+ if(rc < 0) {
+ DeleteMidQEntry(midQ);
+ up(&ses->server->tcpSem);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
+ return rc;
+ } else
+ up(&ses->server->tcpSem);
if (long_op == -1)
- goto out;
+ goto cifs_no_response_exit2;
else if (long_op == 2) /* writes past end of file can take loong time */
timeout = 180 * HZ;
else if (long_op == 1)
timeout = 45 * HZ; /* should be greater than
servers oplock break timeout (about 43 seconds) */
- else
+ else if (long_op > 2) {
+ timeout = MAX_SCHEDULE_TIMEOUT;
+ } else
timeout = 15 * HZ;
-
/* wait for 15 seconds or until woken up due to response arriving or
due to last connection to this server being unmounted */
if (signal_pending(current)) {
}
/* No user interrupts in wait - wreaks havoc with performance */
- wait_for_response(ses, midQ, timeout, 10 * HZ);
+ if(timeout != MAX_SCHEDULE_TIMEOUT) {
+ timeout += jiffies;
+ wait_event(ses->server->response_q,
+ (!(midQ->midState & MID_REQUEST_SUBMITTED)) ||
+ time_after(jiffies, timeout) ||
+ ((ses->server->tcpStatus != CifsGood) &&
+ (ses->server->tcpStatus != CifsNew)));
+ } else {
+ wait_event(ses->server->response_q,
+ (!(midQ->midState & MID_REQUEST_SUBMITTED)) ||
+ ((ses->server->tcpStatus != CifsGood) &&
+ (ses->server->tcpStatus != CifsNew)));
+ }
spin_lock(&GlobalMid_Lock);
if (midQ->resp_buf) {
}
spin_unlock(&GlobalMid_Lock);
DeleteMidQEntry(midQ);
- /* Update # of requests on wire to server */
- atomic_dec(&ses->server->inFlight);
- wake_up(&ses->server->request_q);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
return rc;
}
cFYI(1,("Bad MID state?"));
}
}
+cifs_no_response_exit2:
+ DeleteMidQEntry(midQ);
-out:
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
- DeleteMidQEntry(midQ);
- atomic_dec(&ses->server->inFlight);
- wake_up(&ses->server->request_q);
+ return rc;
+
+out_unlock2:
+ up(&ses->server->tcpSem);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
return rc;
}
/* Ensure that we do not send more than 50 overlapping requests
to the same server. We may make this configurable later or
use ses->maxReq */
+ if(long_op == -1) {
+ /* oplock breaks must not be held up */
+ atomic_inc(&ses->server->inFlight);
+ } else {
+ spin_lock(&GlobalMid_Lock);
+ while(1) {
+ if(atomic_read(&ses->server->inFlight) >=
+ cifs_max_pending){
+ spin_unlock(&GlobalMid_Lock);
+#ifdef CONFIG_CIFS_STATS2
+ atomic_inc(&ses->server->num_waiters);
+#endif
+ wait_event(ses->server->request_q,
+ atomic_read(&ses->server->inFlight)
+ < cifs_max_pending);
+#ifdef CONFIG_CIFS_STATS2
+ atomic_dec(&ses->server->num_waiters);
+#endif
+ spin_lock(&GlobalMid_Lock);
+ } else {
+ if(ses->server->tcpStatus == CifsExiting) {
+ spin_unlock(&GlobalMid_Lock);
+ return -ENOENT;
+ }
- rc = wait_for_free_request(ses, long_op);
- if (rc)
- return rc;
-
+ /* can not count locking commands against total since
+ they are allowed to block on server */
+
+ if(long_op < 3) {
+ /* update # of requests on the wire to server */
+ atomic_inc(&ses->server->inFlight);
+ }
+ spin_unlock(&GlobalMid_Lock);
+ break;
+ }
+ }
+ }
/* make sure that we sign in the same order that we send on this socket
and avoid races inside tcp sendmsg code that could cause corruption
of smb data */
down(&ses->server->tcpSem);
- rc = allocate_mid(ses, in_buf, &midQ);
- if (rc) {
+ if (ses->server->tcpStatus == CifsExiting) {
+ rc = -ENOENT;
+ goto out_unlock;
+ } else if (ses->server->tcpStatus == CifsNeedReconnect) {
+ cFYI(1,("tcp session dead - return to caller to retry"));
+ rc = -EAGAIN;
+ goto out_unlock;
+ } else if (ses->status != CifsGood) {
+ /* check if SMB session is bad because we are setting it up */
+ if((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) &&
+ (in_buf->Command != SMB_COM_NEGOTIATE)) {
+ rc = -EAGAIN;
+ goto out_unlock;
+ } /* else ok - we are setting up session */
+ }
+ midQ = AllocMidQEntry(in_buf, ses);
+ if (midQ == NULL) {
up(&ses->server->tcpSem);
- /* Update # of requests on wire to server */
- atomic_dec(&ses->server->inFlight);
- wake_up(&ses->server->request_q);
- return rc;
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
+ return -ENOMEM;
}
if (in_buf->smb_buf_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
- cERROR(1, ("Illegal length, greater than maximum frame, %d",
+ up(&ses->server->tcpSem);
+ cERROR(1,
+ ("Illegal length, greater than maximum frame, %d ",
in_buf->smb_buf_length));
DeleteMidQEntry(midQ);
- up(&ses->server->tcpSem);
- /* Update # of requests on wire to server */
- atomic_dec(&ses->server->inFlight);
- wake_up(&ses->server->request_q);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
return -EIO;
}
atomic_dec(&ses->server->inSend);
midQ->when_sent = jiffies;
#endif
- up(&ses->server->tcpSem);
-
- if(rc < 0)
- goto out;
-
+ if(rc < 0) {
+ DeleteMidQEntry(midQ);
+ up(&ses->server->tcpSem);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
+ return rc;
+ } else
+ up(&ses->server->tcpSem);
if (long_op == -1)
- goto out;
+ goto cifs_no_response_exit;
else if (long_op == 2) /* writes past end of file can take loong time */
timeout = 180 * HZ;
else if (long_op == 1)
timeout = 45 * HZ; /* should be greater than
servers oplock break timeout (about 43 seconds) */
- else
+ else if (long_op > 2) {
+ timeout = MAX_SCHEDULE_TIMEOUT;
+ } else
timeout = 15 * HZ;
/* wait for 15 seconds or until woken up due to response arriving or
due to last connection to this server being unmounted */
}
/* No user interrupts in wait - wreaks havoc with performance */
- wait_for_response(ses, midQ, timeout, 10 * HZ);
+ if(timeout != MAX_SCHEDULE_TIMEOUT) {
+ timeout += jiffies;
+ wait_event(ses->server->response_q,
+ (!(midQ->midState & MID_REQUEST_SUBMITTED)) ||
+ time_after(jiffies, timeout) ||
+ ((ses->server->tcpStatus != CifsGood) &&
+ (ses->server->tcpStatus != CifsNew)));
+ } else {
+ wait_event(ses->server->response_q,
+ (!(midQ->midState & MID_REQUEST_SUBMITTED)) ||
+ ((ses->server->tcpStatus != CifsGood) &&
+ (ses->server->tcpStatus != CifsNew)));
+ }
spin_lock(&GlobalMid_Lock);
if (midQ->resp_buf) {
}
spin_unlock(&GlobalMid_Lock);
DeleteMidQEntry(midQ);
- /* Update # of requests on wire to server */
- atomic_dec(&ses->server->inFlight);
- wake_up(&ses->server->request_q);
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
+ }
return rc;
}
cERROR(1,("Bad MID state?"));
}
}
-
-out:
-
+cifs_no_response_exit:
DeleteMidQEntry(midQ);
- atomic_dec(&ses->server->inFlight);
- wake_up(&ses->server->request_q);
-
- return rc;
-}
-
-/* Send an NT_CANCEL SMB to cause the POSIX blocking lock to return. */
-
-static int
-send_nt_cancel(struct cifsTconInfo *tcon, struct smb_hdr *in_buf,
- struct mid_q_entry *midQ)
-{
- int rc = 0;
- struct cifsSesInfo *ses = tcon->ses;
- __u16 mid = in_buf->Mid;
-
- header_assemble(in_buf, SMB_COM_NT_CANCEL, tcon, 0);
- in_buf->Mid = mid;
- down(&ses->server->tcpSem);
- rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number);
- if (rc) {
- up(&ses->server->tcpSem);
- return rc;
- }
- rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
- (struct sockaddr *) &(ses->server->addr.sockAddr));
- up(&ses->server->tcpSem);
- return rc;
-}
-
-/* We send a LOCKINGX_CANCEL_LOCK to cause the Windows
- blocking lock to return. */
-
-static int
-send_lock_cancel(const unsigned int xid, struct cifsTconInfo *tcon,
- struct smb_hdr *in_buf,
- struct smb_hdr *out_buf)
-{
- int bytes_returned;
- struct cifsSesInfo *ses = tcon->ses;
- LOCK_REQ *pSMB = (LOCK_REQ *)in_buf;
-
- /* We just modify the current in_buf to change
- the type of lock from LOCKING_ANDX_SHARED_LOCK
- or LOCKING_ANDX_EXCLUSIVE_LOCK to
- LOCKING_ANDX_CANCEL_LOCK. */
-
- pSMB->LockType = LOCKING_ANDX_CANCEL_LOCK|LOCKING_ANDX_LARGE_FILES;
- pSMB->Timeout = 0;
- pSMB->hdr.Mid = GetNextMid(ses->server);
-
- return SendReceive(xid, ses, in_buf, out_buf,
- &bytes_returned, 0);
-}
-
-int
-SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon,
- struct smb_hdr *in_buf, struct smb_hdr *out_buf,
- int *pbytes_returned)
-{
- int rc = 0;
- int rstart = 0;
- unsigned int receive_len;
- struct mid_q_entry *midQ;
- struct cifsSesInfo *ses;
-
- if (tcon == NULL || tcon->ses == NULL) {
- cERROR(1,("Null smb session"));
- return -EIO;
- }
- ses = tcon->ses;
-
- if(ses->server == NULL) {
- cERROR(1,("Null tcp session"));
- return -EIO;
- }
-
- if(ses->server->tcpStatus == CifsExiting)
- return -ENOENT;
-
- /* Ensure that we do not send more than 50 overlapping requests
- to the same server. We may make this configurable later or
- use ses->maxReq */
- rc = wait_for_free_request(ses, 3);
- if (rc)
- return rc;
-
- /* make sure that we sign in the same order that we send on this socket
- and avoid races inside tcp sendmsg code that could cause corruption
- of smb data */
-
- down(&ses->server->tcpSem);
-
- rc = allocate_mid(ses, in_buf, &midQ);
- if (rc) {
- up(&ses->server->tcpSem);
- return rc;
- }
-
- if (in_buf->smb_buf_length > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE - 4) {
- up(&ses->server->tcpSem);
- cERROR(1, ("Illegal length, greater than maximum frame, %d",
- in_buf->smb_buf_length));
- DeleteMidQEntry(midQ);
- return -EIO;
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
}
- rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number);
+ return rc;
- midQ->midState = MID_REQUEST_SUBMITTED;
-#ifdef CONFIG_CIFS_STATS2
- atomic_inc(&ses->server->inSend);
-#endif
- rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
- (struct sockaddr *) &(ses->server->addr.sockAddr));
-#ifdef CONFIG_CIFS_STATS2
- atomic_dec(&ses->server->inSend);
- midQ->when_sent = jiffies;
-#endif
+out_unlock:
up(&ses->server->tcpSem);
-
- if(rc < 0) {
- DeleteMidQEntry(midQ);
- return rc;
- }
-
- /* Wait for a reply - allow signals to interrupt. */
- rc = wait_event_interruptible(ses->server->response_q,
- (!(midQ->midState == MID_REQUEST_SUBMITTED)) ||
- ((ses->server->tcpStatus != CifsGood) &&
- (ses->server->tcpStatus != CifsNew)));
-
- /* Were we interrupted by a signal ? */
- if ((rc == -ERESTARTSYS) &&
- (midQ->midState == MID_REQUEST_SUBMITTED) &&
- ((ses->server->tcpStatus == CifsGood) ||
- (ses->server->tcpStatus == CifsNew))) {
-
- if (in_buf->Command == SMB_COM_TRANSACTION2) {
- /* POSIX lock. We send a NT_CANCEL SMB to cause the
- blocking lock to return. */
-
- rc = send_nt_cancel(tcon, in_buf, midQ);
- if (rc) {
- DeleteMidQEntry(midQ);
- return rc;
- }
- } else {
- /* Windows lock. We send a LOCKINGX_CANCEL_LOCK
- to cause the blocking lock to return. */
-
- rc = send_lock_cancel(xid, tcon, in_buf, out_buf);
-
- /* If we get -ENOLCK back the lock may have
- already been removed. Don't exit in this case. */
- if (rc && rc != -ENOLCK) {
- DeleteMidQEntry(midQ);
- return rc;
- }
- }
-
- /* Wait 5 seconds for the response. */
- if (wait_for_response(ses, midQ, 5 * HZ, 5 * HZ)==0) {
- /* We got the response - restart system call. */
- rstart = 1;
- }
- }
-
- spin_lock(&GlobalMid_Lock);
- if (midQ->resp_buf) {
- spin_unlock(&GlobalMid_Lock);
- receive_len = midQ->resp_buf->smb_buf_length;
- } else {
- cERROR(1,("No response for cmd %d mid %d",
- midQ->command, midQ->mid));
- if(midQ->midState == MID_REQUEST_SUBMITTED) {
- if(ses->server->tcpStatus == CifsExiting)
- rc = -EHOSTDOWN;
- else {
- ses->server->tcpStatus = CifsNeedReconnect;
- midQ->midState = MID_RETRY_NEEDED;
- }
- }
-
- if (rc != -EHOSTDOWN) {
- if(midQ->midState == MID_RETRY_NEEDED) {
- rc = -EAGAIN;
- cFYI(1,("marking request for retry"));
- } else {
- rc = -EIO;
- }
- }
- spin_unlock(&GlobalMid_Lock);
- DeleteMidQEntry(midQ);
- return rc;
+ /* If not lock req, update # of requests on wire to server */
+ if(long_op < 3) {
+ atomic_dec(&ses->server->inFlight);
+ wake_up(&ses->server->request_q);
}
-
- if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) {
- cERROR(1, ("Frame too large received. Length: %d Xid: %d",
- receive_len, xid));
- rc = -EIO;
- } else { /* rcvd frame is ok */
-
- if (midQ->resp_buf && out_buf
- && (midQ->midState == MID_RESPONSE_RECEIVED)) {
- out_buf->smb_buf_length = receive_len;
- memcpy((char *)out_buf + 4,
- (char *)midQ->resp_buf + 4,
- receive_len);
- dump_smb(out_buf, 92);
- /* convert the length into a more usable form */
- if((receive_len > 24) &&
- (ses->server->secMode & (SECMODE_SIGN_REQUIRED |
- SECMODE_SIGN_ENABLED))) {
- rc = cifs_verify_signature(out_buf,
- ses->server->mac_signing_key,
- midQ->sequence_number+1);
- if(rc) {
- cERROR(1,("Unexpected SMB signature"));
- /* BB FIXME add code to kill session */
- }
- }
-
- *pbytes_returned = out_buf->smb_buf_length;
-
- /* BB special case reconnect tid and uid here? */
- rc = map_smb_to_linux_error(out_buf);
-
- /* convert ByteCount if necessary */
- if (receive_len >=
- sizeof (struct smb_hdr) -
- 4 /* do not count RFC1001 header */ +
- (2 * out_buf->WordCount) + 2 /* bcc */ )
- BCC(out_buf) = le16_to_cpu(BCC_LE(out_buf));
- } else {
- rc = -EIO;
- cERROR(1,("Bad MID state?"));
- }
- }
- DeleteMidQEntry(midQ);
- if (rstart && rc == -EACCES)
- return -ERESTARTSYS;
return rc;
}
git://git.onelab.eu / linux-2.6.git / blobdiff