return 0;
}
-static int allocate_mid(struct cifsSesInfo *ses, struct smb_hdr *in_buf,
+static int allocate_mid(struct cifs_ses *ses, struct smb_hdr *in_buf,
struct mid_q_entry **ppmidQ)
{
if (ses->server->tcpStatus == CifsExiting) {
* the result. Caller is responsible for dealing with timeouts.
*/
int
-cifs_call_async(struct TCP_Server_Info *server, struct smb_hdr *in_buf,
- mid_callback_t *callback, void *cbdata)
+cifs_call_async(struct TCP_Server_Info *server, struct kvec *iov,
+ unsigned int nvec, mid_callback_t *callback, void *cbdata,
+ bool ignore_pend)
{
int rc;
struct mid_q_entry *mid;
+ struct smb_hdr *hdr = (struct smb_hdr *)iov[0].iov_base;
- rc = wait_for_free_request(server, CIFS_ASYNC_OP);
+ rc = wait_for_free_request(server, ignore_pend ? CIFS_ASYNC_OP : 0);
if (rc)
return rc;
/* enable signing if server requires it */
- if (server->secMode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
- in_buf->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
+ if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED))
+ hdr->Flags2 |= SMBFLG2_SECURITY_SIGNATURE;
mutex_lock(&server->srv_mutex);
- mid = AllocMidQEntry(in_buf, server);
+ mid = AllocMidQEntry(hdr, server);
if (mid == NULL) {
mutex_unlock(&server->srv_mutex);
return -ENOMEM;
list_add_tail(&mid->qhead, &server->pending_mid_q);
spin_unlock(&GlobalMid_Lock);
- rc = cifs_sign_smb(in_buf, server, &mid->sequence_number);
+ rc = cifs_sign_smb2(iov, nvec, server, &mid->sequence_number);
if (rc) {
mutex_unlock(&server->srv_mutex);
goto out_err;
#ifdef CONFIG_CIFS_STATS2
atomic_inc(&server->inSend);
#endif
- rc = smb_send(server, in_buf, be32_to_cpu(in_buf->smb_buf_length));
+ rc = smb_sendv(server, iov, nvec);
#ifdef CONFIG_CIFS_STATS2
atomic_dec(&server->inSend);
mid->when_sent = jiffies;
*
*/
int
-SendReceiveNoRsp(const unsigned int xid, struct cifsSesInfo *ses,
+SendReceiveNoRsp(const unsigned int xid, struct cifs_ses *ses,
struct smb_hdr *in_buf, int flags)
{
int rc;
}
static int
-sync_mid_result(struct mid_q_entry *mid, struct TCP_Server_Info *server)
+cifs_sync_mid_result(struct mid_q_entry *mid, struct TCP_Server_Info *server)
{
int rc = 0;
mid->mid, mid->midState);
spin_lock(&GlobalMid_Lock);
- /* ensure that it's no longer on the pending_mid_q */
- list_del_init(&mid->qhead);
-
switch (mid->midState) {
case MID_RESPONSE_RECEIVED:
spin_unlock(&GlobalMid_Lock);
return rc;
- case MID_REQUEST_SUBMITTED:
- /* socket is going down, reject all calls */
- if (server->tcpStatus == CifsExiting) {
- cERROR(1, "%s: canceling mid=%d cmd=0x%x state=%d",
- __func__, mid->mid, mid->command, mid->midState);
- rc = -EHOSTDOWN;
- break;
- }
case MID_RETRY_NEEDED:
rc = -EAGAIN;
break;
case MID_RESPONSE_MALFORMED:
rc = -EIO;
break;
+ case MID_SHUTDOWN:
+ rc = -EHOSTDOWN;
+ break;
default:
+ list_del_init(&mid->qhead);
cERROR(1, "%s: invalid mid state mid=%d state=%d", __func__,
mid->mid, mid->midState);
rc = -EIO;
}
int
-SendReceive2(const unsigned int xid, struct cifsSesInfo *ses,
+cifs_check_receive(struct mid_q_entry *mid, struct TCP_Server_Info *server,
+ bool log_error)
+{
+ dump_smb(mid->resp_buf,
+ min_t(u32, 92, be32_to_cpu(mid->resp_buf->smb_buf_length)));
+
+ /* convert the length into a more usable form */
+ if (server->sec_mode & (SECMODE_SIGN_REQUIRED | SECMODE_SIGN_ENABLED)) {
+ /* FIXME: add code to kill session */
+ if (cifs_verify_signature(mid->resp_buf, server,
+ mid->sequence_number + 1) != 0)
+ cERROR(1, "Unexpected SMB signature");
+ }
+
+ /* BB special case reconnect tid and uid here? */
+ return map_smb_to_linux_error(mid->resp_buf, log_error);
+}
+
+int
+SendReceive2(const unsigned int xid, struct cifs_ses *ses,
struct kvec *iov, int n_vec, int *pRespBufType /* ret */,
const int flags)
{
int rc = 0;
int long_op;
- unsigned int receive_len;
struct mid_q_entry *midQ;
struct smb_hdr *in_buf = iov[0].iov_base;
cifs_small_buf_release(in_buf);
- rc = sync_mid_result(midQ, ses->server);
+ rc = cifs_sync_mid_result(midQ, ses->server);
if (rc != 0) {
atomic_dec(&ses->server->inFlight);
wake_up(&ses->server->request_q);
return rc;
}
- receive_len = be32_to_cpu(midQ->resp_buf->smb_buf_length);
-
- if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) {
- cERROR(1, "Frame too large received. Length: %d Xid: %d",
- receive_len, xid);
+ if (!midQ->resp_buf || midQ->midState != MID_RESPONSE_RECEIVED) {
rc = -EIO;
+ cFYI(1, "Bad MID state?");
goto out;
}
- /* rcvd frame is ok */
-
- if (midQ->resp_buf &&
- (midQ->midState == MID_RESPONSE_RECEIVED)) {
-
- iov[0].iov_base = (char *)midQ->resp_buf;
- if (midQ->largeBuf)
- *pRespBufType = CIFS_LARGE_BUFFER;
- else
- *pRespBufType = CIFS_SMALL_BUFFER;
- iov[0].iov_len = receive_len + 4;
-
- dump_smb(midQ->resp_buf, 80);
- /* 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(midQ->resp_buf,
- ses->server,
- midQ->sequence_number+1);
- if (rc) {
- cERROR(1, "Unexpected SMB signature");
- /* BB FIXME add code to kill session */
- }
- }
-
- /* BB special case reconnect tid and uid here? */
- rc = map_smb_to_linux_error(midQ->resp_buf,
- flags & CIFS_LOG_ERROR);
+ iov[0].iov_base = (char *)midQ->resp_buf;
+ iov[0].iov_len = be32_to_cpu(midQ->resp_buf->smb_buf_length) + 4;
+ if (midQ->largeBuf)
+ *pRespBufType = CIFS_LARGE_BUFFER;
+ else
+ *pRespBufType = CIFS_SMALL_BUFFER;
- if ((flags & CIFS_NO_RESP) == 0)
- midQ->resp_buf = NULL; /* mark it so buf will
- not be freed by
- delete_mid */
- } else {
- rc = -EIO;
- cFYI(1, "Bad MID state?");
- }
+ rc = cifs_check_receive(midQ, ses->server, flags & CIFS_LOG_ERROR);
+ /* mark it so buf will not be freed by delete_mid */
+ if ((flags & CIFS_NO_RESP) == 0)
+ midQ->resp_buf = NULL;
out:
delete_mid(midQ);
atomic_dec(&ses->server->inFlight);
}
int
-SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
+SendReceive(const unsigned int xid, struct cifs_ses *ses,
struct smb_hdr *in_buf, struct smb_hdr *out_buf,
int *pbytes_returned, const int long_op)
{
int rc = 0;
- unsigned int receive_len;
struct mid_q_entry *midQ;
if (ses == NULL) {
spin_unlock(&GlobalMid_Lock);
}
- rc = sync_mid_result(midQ, ses->server);
+ rc = cifs_sync_mid_result(midQ, ses->server);
if (rc != 0) {
atomic_dec(&ses->server->inFlight);
wake_up(&ses->server->request_q);
return rc;
}
- receive_len = be32_to_cpu(midQ->resp_buf->smb_buf_length);
-
- if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) {
- cERROR(1, "Frame too large received. Length: %d Xid: %d",
- receive_len, xid);
- rc = -EIO;
- goto out;
- }
-
- /* rcvd frame is ok */
-
- if (midQ->resp_buf && out_buf
- && (midQ->midState == MID_RESPONSE_RECEIVED)) {
- out_buf->smb_buf_length = cpu_to_be32(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,
- midQ->sequence_number+1);
- if (rc) {
- cERROR(1, "Unexpected SMB signature");
- /* BB FIXME add code to kill session */
- }
- }
-
- *pbytes_returned = be32_to_cpu(out_buf->smb_buf_length);
-
- /* BB special case reconnect tid and uid here? */
- rc = map_smb_to_linux_error(out_buf, 0 /* no log */ );
- } else {
+ if (!midQ->resp_buf || !out_buf ||
+ midQ->midState != MID_RESPONSE_RECEIVED) {
rc = -EIO;
cERROR(1, "Bad MID state?");
+ goto out;
}
+ *pbytes_returned = be32_to_cpu(midQ->resp_buf->smb_buf_length);
+ memcpy(out_buf, midQ->resp_buf, *pbytes_returned + 4);
+ rc = cifs_check_receive(midQ, ses->server, 0);
out:
delete_mid(midQ);
atomic_dec(&ses->server->inFlight);
blocking lock to return. */
static int
-send_lock_cancel(const unsigned int xid, struct cifsTconInfo *tcon,
+send_lock_cancel(const unsigned int xid, struct cifs_tcon *tcon,
struct smb_hdr *in_buf,
struct smb_hdr *out_buf)
{
int bytes_returned;
- struct cifsSesInfo *ses = tcon->ses;
+ struct cifs_ses *ses = tcon->ses;
LOCK_REQ *pSMB = (LOCK_REQ *)in_buf;
/* We just modify the current in_buf to change
}
int
-SendReceiveBlockingLock(const unsigned int xid, struct cifsTconInfo *tcon,
+SendReceiveBlockingLock(const unsigned int xid, struct cifs_tcon *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;
+ struct cifs_ses *ses;
if (tcon == NULL || tcon->ses == NULL) {
cERROR(1, "Null smb session");
rstart = 1;
}
- rc = sync_mid_result(midQ, ses->server);
+ rc = cifs_sync_mid_result(midQ, ses->server);
if (rc != 0)
return rc;
- receive_len = be32_to_cpu(midQ->resp_buf->smb_buf_length);
- if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) {
- cERROR(1, "Frame too large received. Length: %d Xid: %d",
- receive_len, xid);
- rc = -EIO;
- goto out;
- }
-
/* rcvd frame is ok */
-
- if ((out_buf == NULL) || (midQ->midState != MID_RESPONSE_RECEIVED)) {
+ if (out_buf == NULL || midQ->midState != MID_RESPONSE_RECEIVED) {
rc = -EIO;
cERROR(1, "Bad MID state?");
goto out;
}
- out_buf->smb_buf_length = cpu_to_be32(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,
- midQ->sequence_number+1);
- if (rc) {
- cERROR(1, "Unexpected SMB signature");
- /* BB FIXME add code to kill session */
- }
- }
-
- *pbytes_returned = be32_to_cpu(out_buf->smb_buf_length);
-
- /* BB special case reconnect tid and uid here? */
- rc = map_smb_to_linux_error(out_buf, 0 /* no log */ );
-
+ *pbytes_returned = be32_to_cpu(midQ->resp_buf->smb_buf_length);
+ memcpy(out_buf, midQ->resp_buf, *pbytes_returned + 4);
+ rc = cifs_check_receive(midQ, ses->server, 0);
out:
delete_mid(midQ);
if (rstart && rc == -EACCES)
projects / ~andy / linux / blobdiff