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Commit 366ed846 authored by Shirish Pargaonkar's avatar Shirish Pargaonkar Committed by Steve French
Browse files

cifs: Use smb 2 - 3 and cifsacl mount options setacl function 



Added set acl function. Very similar to set cifs acl function for smb1.

Signed-off-by: default avatarShirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
Reviewed-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
parent dac95340

fs/cifs/smb2ops.c

+60 −3
Original line number Diff line number Diff line
@@ -1370,6 +1370,63 @@ get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb, 
	return pntsd;

}



#ifdef CONFIG_CIFS_ACL

static int

set_smb2_acl(struct cifs_ntsd *pnntsd, __u32 acllen,

		struct inode *inode, const char *path, int aclflag)

{

	u8 oplock = SMB2_OPLOCK_LEVEL_NONE;

	unsigned int xid;

	int rc, access_flags = 0;

	struct cifs_tcon *tcon;

	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);

	struct tcon_link *tlink = cifs_sb_tlink(cifs_sb);

	struct cifs_fid fid;

	struct cifs_open_parms oparms;

	__le16 *utf16_path;



	cifs_dbg(FYI, "set smb3 acl for path %s\n", path);

	if (IS_ERR(tlink))

		return PTR_ERR(tlink);



	tcon = tlink_tcon(tlink);

	xid = get_xid();



	if (backup_cred(cifs_sb))

		oparms.create_options = CREATE_OPEN_BACKUP_INTENT;

	else

		oparms.create_options = 0;



	if (aclflag == CIFS_ACL_OWNER || aclflag == CIFS_ACL_GROUP)

		access_flags = WRITE_OWNER;

	else

		access_flags = WRITE_DAC;



	utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);

	if (!utf16_path)

		return -ENOMEM;



	oparms.tcon = tcon;

	oparms.desired_access = access_flags;

	oparms.disposition = FILE_OPEN;

	oparms.path = path;

	oparms.fid = &fid;

	oparms.reconnect = false;



	rc = SMB2_open(xid, &oparms, utf16_path, &oplock, NULL, NULL);

	kfree(utf16_path);

	if (!rc) {

		rc = SMB2_set_acl(xid, tlink_tcon(tlink), fid.persistent_fid,

			    fid.volatile_fid, pnntsd, acllen, aclflag);

		SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);

	}



	cifs_put_tlink(tlink);

	free_xid(xid);

	return rc;

}

#endif /* CIFS_ACL */



/* Retrieve an ACL from the server */

static struct cifs_ntsd *

get_smb2_acl(struct cifs_sb_info *cifs_sb,
@@ -2498,7 +2555,7 @@ struct smb_version_operations smb20_operations = { 
#ifdef CONFIG_CIFS_ACL

	.get_acl = get_smb2_acl,

	.get_acl_by_fid = get_smb2_acl_by_fid,

/*	.set_acl = set_smb3_acl, */

	.set_acl = set_smb2_acl,

#endif /* CIFS_ACL */

};
@@ -2587,7 +2644,7 @@ struct smb_version_operations smb21_operations = { 
#ifdef CONFIG_CIFS_ACL

	.get_acl = get_smb2_acl,

	.get_acl_by_fid = get_smb2_acl_by_fid,

/*	.set_acl = set_smb3_acl, */

	.set_acl = set_smb2_acl,

#endif /* CIFS_ACL */

};
@@ -2686,7 +2743,7 @@ struct smb_version_operations smb30_operations = { 
#ifdef CONFIG_CIFS_ACL

	.get_acl = get_smb2_acl,

	.get_acl_by_fid = get_smb2_acl_by_fid,

/*	.set_acl = set_smb3_acl, */

	.set_acl = set_smb2_acl,

#endif /* CIFS_ACL */

};