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/* YFS protocol bits
*
* Copyright (C) 2018 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public Licence
* as published by the Free Software Foundation; either version
* 2 of the Licence, or (at your option) any later version.
*/
#define YFS_FS_SERVICE 2500
#define YFS_CM_SERVICE 2501
#define YFSCBMAX 1024
enum YFS_CM_Operations {
YFSCBProbe = 206, /* probe client */
YFSCBGetLock = 207, /* get contents of CM lock table */
YFSCBXStatsVersion = 209, /* get version of extended statistics */
YFSCBGetXStats = 210, /* get contents of extended statistics data */
YFSCBInitCallBackState3 = 213, /* initialise callback state, version 3 */
YFSCBProbeUuid = 214, /* check the client hasn't rebooted */
YFSCBGetServerPrefs = 215,
YFSCBGetCellServDV = 216,
YFSCBGetLocalCell = 217,
YFSCBGetCacheConfig = 218,
YFSCBGetCellByNum = 65537,
YFSCBTellMeAboutYourself = 65538, /* get client capabilities */
YFSCBCallBack = 64204,
};
struct yfs_xdr_u64 {
__be32 msw;
__be32 lsw;
} __packed;
static inline u64 xdr_to_u64(const struct yfs_xdr_u64 x)
{
return ((u64)ntohl(x.msw) << 32) | ntohl(x.lsw);
}
static inline struct yfs_xdr_u64 u64_to_xdr(const u64 x)
{
return (struct yfs_xdr_u64){ .msw = htonl(x >> 32), .lsw = htonl(x) };
}
struct yfs_xdr_vnode {
struct yfs_xdr_u64 lo;
__be32 hi;
__be32 unique;
} __packed;
struct yfs_xdr_YFSFid {
struct yfs_xdr_u64 volume;
struct yfs_xdr_vnode vnode;
} __packed;
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