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Diffstat (limited to 'fs/cifs/transport.c')
-rw-r--r--fs/cifs/transport.c54
1 files changed, 35 insertions, 19 deletions
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index af13e526b150..0046c219833d 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -1,7 +1,7 @@
/*
* fs/cifs/transport.c
*
- * Copyright (C) International Business Machines Corp., 2002,2004
+ * Copyright (C) International Business Machines Corp., 2002,2005
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -41,7 +41,7 @@ AllocMidQEntry(struct smb_hdr *smb_buffer, struct cifsSesInfo *ses)
struct mid_q_entry *temp;
if (ses == NULL) {
- cERROR(1, ("Null session passed in to AllocMidQEntry "));
+ cERROR(1, ("Null session passed in to AllocMidQEntry"));
return NULL;
}
if (ses->server == NULL) {
@@ -79,7 +79,10 @@ DeleteMidQEntry(struct mid_q_entry *midEntry)
list_del(&midEntry->qhead);
atomic_dec(&midCount);
spin_unlock(&GlobalMid_Lock);
- cifs_buf_release(midEntry->resp_buf);
+ if(midEntry->largeBuf)
+ cifs_buf_release(midEntry->resp_buf);
+ else
+ cifs_small_buf_release(midEntry->resp_buf);
mempool_free(midEntry, cifs_mid_poolp);
}
@@ -182,14 +185,14 @@ smb_send(struct socket *ssocket, struct smb_hdr *smb_buffer,
int
smb_sendv(struct socket *ssocket, struct smb_hdr *smb_buffer,
- unsigned int smb_buf_length, struct kvec * write_vector /* page list */, struct sockaddr *sin)
+ unsigned int smb_buf_length, struct kvec * write_vector
+ /* page list */, struct sockaddr *sin)
{
int rc = 0;
int i = 0;
struct msghdr smb_msg;
number_of_pages += 1; /* account for SMB header */
struct kvec * piov = kmalloc(number_of_pages * sizeof(struct kvec));
- if(i=0;i<num_pages-1;i++
unsigned len = smb_buf_length + 4;
if(ssocket == NULL)
@@ -213,7 +216,8 @@ smb_sendv(struct socket *ssocket, struct smb_hdr *smb_buffer,
dump_smb(smb_buffer, len);
while (len > 0) {
- rc = kernel_sendmsg(ssocket, &smb_msg, &iov, number_of_pages, len?);
+ rc = kernel_sendmsg(ssocket, &smb_msg, &iov, number_of_pages,
+ len);
if ((rc == -ENOSPC) || (rc == -EAGAIN)) {
i++;
if(i > 60) {
@@ -266,6 +270,9 @@ CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
+ if(ses->server->tcpStatus == CIFS_EXITING)
+ 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 */
@@ -346,11 +353,12 @@ CIFSSendRcv(const unsigned int xid, struct cifsSesInfo *ses,
}
/* BB can we sign efficiently in this path? */
- rc = cifs_sign_smb(in_buf, ses, &midQ->sequence_number);
+ rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number);
midQ->midState = MID_REQUEST_SUBMITTED;
-/* rc = smb_sendv(ses->server->ssocket, in_buf, in_buf->smb_buf_length, piovec,
- (struct sockaddr *) &(ses->server->addr.sockAddr));*/
+/* rc = smb_sendv(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
+ piovec,
+ (struct sockaddr *) &(ses->server->addr.sockAddr));*/
if(rc < 0) {
DeleteMidQEntry(midQ);
up(&ses->server->tcpSem);
@@ -396,6 +404,9 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
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 */
@@ -405,7 +416,8 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
} else {
spin_lock(&GlobalMid_Lock);
while(1) {
- if(atomic_read(&ses->server->inFlight) >= cifs_max_pending){
+ if(atomic_read(&ses->server->inFlight) >=
+ cifs_max_pending){
spin_unlock(&GlobalMid_Lock);
wait_event(ses->server->request_q,
atomic_read(&ses->server->inFlight)
@@ -475,7 +487,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
return -EIO;
}
- rc = cifs_sign_smb(in_buf, ses, &midQ->sequence_number);
+ rc = cifs_sign_smb(in_buf, ses->server, &midQ->sequence_number);
midQ->midState = MID_REQUEST_SUBMITTED;
rc = smb_send(ses->server->ssocket, in_buf, in_buf->smb_buf_length,
@@ -493,7 +505,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
up(&ses->server->tcpSem);
if (long_op == -1)
goto cifs_no_response_exit;
- else if (long_op == 2) /* writes past end of file can take looooong time */
+ else if (long_op == 2) /* writes past end of file can take loong time */
timeout = 300 * HZ;
else if (long_op == 1)
timeout = 45 * HZ; /* should be greater than
@@ -559,8 +571,7 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
}
if (receive_len > CIFSMaxBufSize + MAX_CIFS_HDR_SIZE) {
- cERROR(1,
- ("Frame too large received. Length: %d Xid: %d",
+ cERROR(1, ("Frame too large received. Length: %d Xid: %d",
receive_len, xid));
rc = -EIO;
} else { /* rcvd frame is ok */
@@ -575,15 +586,20 @@ SendReceive(const unsigned int xid, struct cifsSesInfo *ses,
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->mac_signing_key,midQ->sequence_number); /* BB fix BB */
- if(rc)
- cFYI(1,("Unexpected signature received from server"));
+ (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 reconnect uid here? */
+ /* BB special case reconnect tid and uid here? */
rc = map_smb_to_linux_error(out_buf);
/* convert ByteCount if necessary */
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2025-01-19 03:39:02 +0000