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Commit bea851b8 authored by Steve French's avatar Steve French
Browse files

smb3: Fix mode on mkdir on smb311 mounts 



mkdir was not passing the mode on smb3.11 mounts with posix extensions

Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 662bf5bc

fs/cifs/cifsglob.h

+4 −0
Original line number Diff line number Diff line
@@ -315,6 +315,10 @@ struct smb_version_operations { 
	/* send echo request */

	int (*echo)(struct TCP_Server_Info *);

	/* create directory */

	int (*posix_mkdir)(const unsigned int xid, struct inode *inode,

			umode_t mode, struct cifs_tcon *tcon,

			const char *full_path,

			struct cifs_sb_info *cifs_sb);

	int (*mkdir)(const unsigned int, struct cifs_tcon *, const char *,

		     struct cifs_sb_info *);

	/* set info on created directory */

fs/cifs/inode.c

+11 −2
Original line number Diff line number Diff line
@@ -1575,6 +1575,17 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode) 
		goto mkdir_out;

	}



	server = tcon->ses->server;



#ifdef CONFIG_CIFS_SMB311

	if ((server->ops->posix_mkdir) && (tcon->posix_extensions)) {

		rc = server->ops->posix_mkdir(xid, inode, mode, tcon, full_path,

					      cifs_sb);

		d_drop(direntry); /* for time being always refresh inode info */

		goto mkdir_out;

	}

#endif /* SMB311 */



	if (cap_unix(tcon->ses) && (CIFS_UNIX_POSIX_PATH_OPS_CAP &

				le64_to_cpu(tcon->fsUnixInfo.Capability))) {

		rc = cifs_posix_mkdir(inode, direntry, mode, full_path, cifs_sb,
@@ -1583,8 +1594,6 @@ int cifs_mkdir(struct inode *inode, struct dentry *direntry, umode_t mode) 
			goto mkdir_out;

	}



	server = tcon->ses->server;



	if (!server->ops->mkdir) {

		rc = -ENOSYS;

		goto mkdir_out;

fs/cifs/smb2ops.c

+1 −0
Original line number Diff line number Diff line
@@ -3313,6 +3313,7 @@ struct smb_version_operations smb311_operations = { 
	.set_compression = smb2_set_compression,

	.mkdir = smb2_mkdir,

	.mkdir_setinfo = smb2_mkdir_setinfo,

	.posix_mkdir = smb311_posix_mkdir,

	.rmdir = smb2_rmdir,

	.unlink = smb2_unlink,

	.rename = smb2_rename_path,

fs/cifs/smb2pdu.c

+153 −0
Original line number Diff line number Diff line
@@ -1911,6 +1911,159 @@ alloc_path_with_tree_prefix(__le16 **out_path, int *out_size, int *out_len, 
	return 0;

}



#ifdef CONFIG_CIFS_SMB311

int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,

			       umode_t mode, struct cifs_tcon *tcon,

			       const char *full_path,

			       struct cifs_sb_info *cifs_sb)

{

	struct smb_rqst rqst;

	struct smb2_create_req *req;

	struct smb2_create_rsp *rsp;

	struct TCP_Server_Info *server;

	struct cifs_ses *ses = tcon->ses;

	struct kvec iov[3]; /* make sure at least one for each open context */

	struct kvec rsp_iov = {NULL, 0};

	int resp_buftype;

	int uni_path_len;

	__le16 *copy_path = NULL;

	int copy_size;

	int rc = 0;

	unsigned int n_iov = 2;

	__u32 file_attributes = 0;

	char *pc_buf = NULL;

	int flags = 0;

	unsigned int total_len;

	__le16 *path = cifs_convert_path_to_utf16(full_path, cifs_sb);



	if (!path)

		return -ENOMEM;



	cifs_dbg(FYI, "mkdir\n");



	if (ses && (ses->server))

		server = ses->server;

	else

		return -EIO;



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



	if (rc)

		return rc;



	if (smb3_encryption_required(tcon))

		flags |= CIFS_TRANSFORM_REQ;





	req->ImpersonationLevel = IL_IMPERSONATION;

	req->DesiredAccess = cpu_to_le32(FILE_WRITE_ATTRIBUTES);

	/* File attributes ignored on open (used in create though) */

	req->FileAttributes = cpu_to_le32(file_attributes);

	req->ShareAccess = FILE_SHARE_ALL_LE;

	req->CreateDisposition = cpu_to_le32(FILE_CREATE);

	req->CreateOptions = cpu_to_le32(CREATE_NOT_FILE);



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

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

	iov[0].iov_len = total_len - 1;



	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

	 * the SMB2 header, the file name includes a prefix that will

	 * be processed during DFS name normalization as specified in

	 * section 3.3.5.9. Otherwise, the file name is relative to

	 * the share that is identified by the TreeId in the SMB2

	 * header.

	 */

	if (tcon->share_flags & SHI1005_FLAGS_DFS) {

		int name_len;



		req->sync_hdr.Flags |= SMB2_FLAGS_DFS_OPERATIONS;

		rc = alloc_path_with_tree_prefix(&copy_path, &copy_size,

						 &name_len,

						 tcon->treeName, path);

		if (rc) {

			cifs_small_buf_release(req);

			return rc;

		}

		req->NameLength = cpu_to_le16(name_len * 2);

		uni_path_len = copy_size;

		path = copy_path;

	} else {

		uni_path_len = (2 * UniStrnlen((wchar_t *)path, PATH_MAX)) + 2;

		/* MUST set path len (NameLength) to 0 opening root of share */

		req->NameLength = cpu_to_le16(uni_path_len - 2);

		if (uni_path_len % 8 != 0) {

			copy_size = roundup(uni_path_len, 8);

			copy_path = kzalloc(copy_size, GFP_KERNEL);

			if (!copy_path) {

				cifs_small_buf_release(req);

				return -ENOMEM;

			}

			memcpy((char *)copy_path, (const char *)path,

			       uni_path_len);

			uni_path_len = copy_size;

			path = copy_path;

		}

	}



	iov[1].iov_len = uni_path_len;

	iov[1].iov_base = path;

	req->RequestedOplockLevel = SMB2_OPLOCK_LEVEL_NONE;



	if (tcon->posix_extensions) {

		if (n_iov > 2) {

			struct create_context *ccontext =

			    (struct create_context *)iov[n_iov-1].iov_base;

			ccontext->Next =

				cpu_to_le32(iov[n_iov-1].iov_len);

		}



		rc = add_posix_context(iov, &n_iov, mode);

		if (rc) {

			cifs_small_buf_release(req);

			kfree(copy_path);

			return rc;

		}

		pc_buf = iov[n_iov-1].iov_base;

	}





	memset(&rqst, 0, sizeof(struct smb_rqst));

	rqst.rq_iov = iov;

	rqst.rq_nvec = n_iov;



	rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags,

			    &rsp_iov);



	cifs_small_buf_release(req);

	rsp = (struct smb2_create_rsp *)rsp_iov.iov_base;



	if (rc != 0) {

		cifs_stats_fail_inc(tcon, SMB2_CREATE_HE);

		trace_smb3_posix_mkdir_err(xid, tcon->tid, ses->Suid,

				    CREATE_NOT_FILE, FILE_WRITE_ATTRIBUTES, rc);

		goto smb311_mkdir_exit;

	} else

		trace_smb3_posix_mkdir_done(xid, rsp->PersistentFileId, tcon->tid,

				     ses->Suid, CREATE_NOT_FILE,

				     FILE_WRITE_ATTRIBUTES);



	SMB2_close(xid, tcon, rsp->PersistentFileId, rsp->VolatileFileId);



	/* Eventually save off posix specific response info and timestaps */



smb311_mkdir_exit:

	kfree(copy_path);

	kfree(pc_buf);

	free_rsp_buf(resp_buftype, rsp);

	return rc;



}

#endif /* SMB311 */



int

SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,

	  __u8 *oplock, struct smb2_file_all_info *buf,

fs/cifs/smb2proto.h

+4 −0
Original line number Diff line number Diff line
@@ -79,6 +79,10 @@ extern int smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon, 
			      struct cifs_sb_info *cifs_sb, bool set_alloc);

extern int smb2_set_file_info(struct inode *inode, const char *full_path,

			      FILE_BASIC_INFO *buf, const unsigned int xid);

extern int smb311_posix_mkdir(const unsigned int xid, struct inode *inode,

			       umode_t mode, struct cifs_tcon *tcon,

			       const char *full_path,

			       struct cifs_sb_info *cifs_sb);

extern int smb2_mkdir(const unsigned int xid, struct cifs_tcon *tcon,

		      const char *name, struct cifs_sb_info *cifs_sb);

extern void smb2_mkdir_setinfo(struct inode *inode, const char *full_path,