Commit 4f33bc35 authored by Ronnie Sahlberg's avatar Ronnie Sahlberg Committed by Steve French
Browse files

cifs: remove rfc1002 header from smb2_create_req 



Signed-off-by: default avatarRonnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
Acked-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: default avatarAurelien Aptel <aaptel@suse.com>
parent 88ea5cb7

fs/cifs/smb2pdu.c

+12 −18
Original line number Diff line number Diff line
@@ -1525,11 +1525,10 @@ add_lease_context(struct TCP_Server_Info *server, struct kvec *iov, 
	req->RequestedOplockLevel = SMB2_OPLOCK_LEVEL_LEASE;

	if (!req->CreateContextsOffset)

		req->CreateContextsOffset = cpu_to_le32(

				sizeof(struct smb2_create_req) - 4 +

				sizeof(struct smb2_create_req) +

				iov[num - 1].iov_len);

	le32_add_cpu(&req->CreateContextsLength,

		     server->vals->create_lease_size);

	inc_rfc1001_len(&req->hdr, server->vals->create_lease_size);

	*num_iovec = num + 1;

	return 0;

}
@@ -1609,10 +1608,9 @@ add_durable_v2_context(struct kvec *iov, unsigned int *num_iovec, 
	iov[num].iov_len = sizeof(struct create_durable_v2);

	if (!req->CreateContextsOffset)

		req->CreateContextsOffset =

			cpu_to_le32(sizeof(struct smb2_create_req) - 4 +

			cpu_to_le32(sizeof(struct smb2_create_req) +

								iov[1].iov_len);

	le32_add_cpu(&req->CreateContextsLength, sizeof(struct create_durable_v2));

	inc_rfc1001_len(&req->hdr, sizeof(struct create_durable_v2));

	*num_iovec = num + 1;

	return 0;

}
@@ -1633,12 +1631,10 @@ add_durable_reconnect_v2_context(struct kvec *iov, unsigned int *num_iovec, 
	iov[num].iov_len = sizeof(struct create_durable_handle_reconnect_v2);

	if (!req->CreateContextsOffset)

		req->CreateContextsOffset =

			cpu_to_le32(sizeof(struct smb2_create_req) - 4 +

			cpu_to_le32(sizeof(struct smb2_create_req) +

								iov[1].iov_len);

	le32_add_cpu(&req->CreateContextsLength,

			sizeof(struct create_durable_handle_reconnect_v2));

	inc_rfc1001_len(&req->hdr,

			sizeof(struct create_durable_handle_reconnect_v2));

	*num_iovec = num + 1;

	return 0;

}
@@ -1669,10 +1665,9 @@ add_durable_context(struct kvec *iov, unsigned int *num_iovec, 
	iov[num].iov_len = sizeof(struct create_durable);

	if (!req->CreateContextsOffset)

		req->CreateContextsOffset =

			cpu_to_le32(sizeof(struct smb2_create_req) - 4 +

			cpu_to_le32(sizeof(struct smb2_create_req) +

								iov[1].iov_len);

	le32_add_cpu(&req->CreateContextsLength, sizeof(struct create_durable));

	inc_rfc1001_len(&req->hdr, sizeof(struct create_durable));

	*num_iovec = num + 1;

	return 0;

}
@@ -1743,6 +1738,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, 
	__u32 file_attributes = 0;

	char *dhc_buf = NULL, *lc_buf = NULL;

	int flags = 0;

	unsigned int total_len;



	cifs_dbg(FYI, "create/open\n");
@@ -1751,7 +1747,8 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, 
	else

		return -EIO;



	rc = small_smb2_init(SMB2_CREATE, tcon, (void **) &req);

	rc = smb2_plain_req_init(SMB2_CREATE, tcon, (void **) &req, &total_len);



	if (rc)

		return rc;
@@ -1772,12 +1769,10 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, 
	req->CreateOptions = cpu_to_le32(oparms->create_options & CREATE_OPTIONS_MASK);



	iov[0].iov_base = (char *)req;

	/* 4 for rfc1002 length field */

	iov[0].iov_len = get_rfc1002_length(req) + 4;

	/* -1 since last byte is buf[0] which is sent below (path) */

	iov[0].iov_len--;

	iov[0].iov_len = total_len - 1;



	req->NameOffset = cpu_to_le16(sizeof(struct smb2_create_req) - 4);

	req->NameOffset = cpu_to_le16(sizeof(struct smb2_create_req));



	/* [MS-SMB2] 2.2.13 NameOffset:

	 * If SMB2_FLAGS_DFS_OPERATIONS is set in the Flags field of
@@ -1790,7 +1785,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, 
	if (tcon->share_flags & SHI1005_FLAGS_DFS) {

		int name_len;



		req->hdr.sync_hdr.Flags |= SMB2_FLAGS_DFS_OPERATIONS;

		req->sync_hdr.Flags |= SMB2_FLAGS_DFS_OPERATIONS;

		rc = alloc_path_with_tree_prefix(&copy_path, &copy_size,

						 &name_len,

						 tcon->treeName, path);
@@ -1817,8 +1812,6 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, 


	iov[1].iov_len = uni_path_len;

	iov[1].iov_base = path;

	/* -1 since last byte is buf[0] which was counted in smb2_buf_len */

	inc_rfc1001_len(req, uni_path_len - 1);



	if (!server->oplocks)

		*oplock = SMB2_OPLOCK_LEVEL_NONE;
@@ -1856,7 +1849,8 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path, 
		dhc_buf = iov[n_iov-1].iov_base;

	}



	rc = SendReceive2(xid, ses, iov, n_iov, &resp_buftype, flags, &rsp_iov);

	rc = smb2_send_recv(xid, ses, iov, n_iov, &resp_buftype, flags,

			    &rsp_iov);

	cifs_small_buf_release(req);

	rsp = (struct smb2_create_rsp *)rsp_iov.iov_base;

fs/cifs/smb2pdu.h

+1 −1
Original line number Diff line number Diff line
@@ -496,7 +496,7 @@ struct smb2_tree_disconnect_rsp { 
#define SVHDX_OPEN_DEVICE_CONTEXT	0x83CE6F1AD851E0986E34401CC9BCFCE9



struct smb2_create_req {

	struct smb2_hdr hdr;

	struct smb2_sync_hdr sync_hdr;

	__le16 StructureSize;	/* Must be 57 */

	__u8   SecurityFlags;

	__u8   RequestedOplockLevel;

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