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Commit 257a65d7 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: remove checks for ses->status == CifsExiting
  cifs: add check for kmalloc in parse_dacl
  cifs: don't send an echo request unless NegProt has been done
  cifs: enable signing flag in SMB header when server has it on
  cifs: Possible slab memory corruption while updating extended stats (repost)
  CIFS: Fix variable types in cifs_iovec_read/write (try #2)
  cifs: fix length vs. total_read confusion in cifs_demultiplex_thread
parents 8dbdea84 d402539b

fs/cifs/cifsacl.c

+4 −0
Original line number Diff line number Diff line
@@ -372,6 +372,10 @@ static void parse_dacl(struct cifs_acl *pdacl, char *end_of_acl, 


		ppace = kmalloc(num_aces * sizeof(struct cifs_ace *),

				GFP_KERNEL);

		if (!ppace) {

			cERROR(1, "DACL memory allocation error");

			return;

		}



		for (i = 0; i < num_aces; ++i) {

			ppace[i] = (struct cifs_ace *) (acl_base + acl_size);

fs/cifs/cifssmb.c

+1 −4
Original line number Diff line number Diff line
@@ -136,9 +136,6 @@ cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command) 
		}

	}



	if (ses->status == CifsExiting)

		return -EIO;



	/*

	 * Give demultiplex thread up to 10 seconds to reconnect, should be

	 * greater than cifs socket timeout which is 7 seconds
@@ -156,7 +153,7 @@ cifs_reconnect_tcon(struct cifsTconInfo *tcon, int smb_command) 
		 * retrying until process is killed or server comes

		 * back on-line

		 */

		if (!tcon->retry || ses->status == CifsExiting) {

		if (!tcon->retry) {

			cFYI(1, "gave up waiting on reconnect in smb_init");

			return -EHOSTDOWN;

		}

fs/cifs/connect.c

+13 −9
Original line number Diff line number Diff line
@@ -337,8 +337,12 @@ cifs_echo_request(struct work_struct *work) 
	struct TCP_Server_Info *server = container_of(work,

					struct TCP_Server_Info, echo.work);



	/* no need to ping if we got a response recently */

	if (time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))

	/*

	 * We cannot send an echo until the NEGOTIATE_PROTOCOL request is done.

	 * Also, no need to ping if we got a response recently

	 */

	if (server->tcpStatus != CifsGood ||

	    time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))

		goto requeue_echo;



	rc = CIFSSMBEcho(server);
@@ -578,12 +582,12 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) 
		else if (reconnect == 1)

			continue;



		length += 4; /* account for rfc1002 hdr */

		total_read += 4; /* account for rfc1002 hdr */





		dump_smb(smb_buffer, length);

		if (checkSMB(smb_buffer, smb_buffer->Mid, total_read+4)) {

			cifs_dump_mem("Bad SMB: ", smb_buffer, 48);

		dump_smb(smb_buffer, total_read);

		if (checkSMB(smb_buffer, smb_buffer->Mid, total_read)) {

			cifs_dump_mem("Bad SMB: ", smb_buffer,

					total_read < 48 ? total_read : 48);

			continue;

		}
@@ -633,11 +637,11 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server) 
				mid_entry->largeBuf = isLargeBuf;

multi_t2_fnd:

				mid_entry->midState = MID_RESPONSE_RECEIVED;

				list_del_init(&mid_entry->qhead);

				mid_entry->callback(mid_entry);

#ifdef CONFIG_CIFS_STATS2

				mid_entry->when_received = jiffies;

#endif

				list_del_init(&mid_entry->qhead);

				mid_entry->callback(mid_entry);

				break;

			}

			mid_entry = NULL;

fs/cifs/file.c

+6 −5
Original line number Diff line number Diff line
@@ -1662,10 +1662,10 @@ static ssize_t 
cifs_iovec_write(struct file *file, const struct iovec *iov,

		 unsigned long nr_segs, loff_t *poffset)

{

	size_t total_written = 0;

	unsigned int written = 0;

	unsigned long num_pages, npages;

	size_t copied, len, cur_len, i;

	unsigned int written;

	unsigned long num_pages, npages, i;

	size_t copied, len, cur_len;

	ssize_t total_written = 0;

	struct kvec *to_send;

	struct page **pages;

	struct iov_iter it;
@@ -1821,7 +1821,8 @@ cifs_iovec_read(struct file *file, const struct iovec *iov, 
{

	int rc;

	int xid;

	unsigned int total_read, bytes_read = 0;

	ssize_t total_read;

	unsigned int bytes_read = 0;

	size_t len, cur_len;

	int iov_offset = 0;

	struct cifs_sb_info *cifs_sb;

fs/cifs/transport.c

+4 −0
Original line number Diff line number Diff line
@@ -359,6 +359,10 @@ cifs_call_async(struct TCP_Server_Info *server, struct smb_hdr *in_buf, 
	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;



	mutex_lock(&server->srv_mutex);

	mid = AllocMidQEntry(in_buf, server);

	if (mid == NULL) {