cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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xdr.h (2926B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * linux/include/linux/lockd/xdr.h
      4 *
      5 * XDR types for the NLM protocol
      6 *
      7 * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de>
      8 */
      9
     10#ifndef LOCKD_XDR_H
     11#define LOCKD_XDR_H
     12
     13#include <linux/fs.h>
     14#include <linux/nfs.h>
     15#include <linux/sunrpc/xdr.h>
     16
     17#define SM_MAXSTRLEN		1024
     18#define SM_PRIV_SIZE		16
     19
     20struct nsm_private {
     21	unsigned char		data[SM_PRIV_SIZE];
     22};
     23
     24struct svc_rqst;
     25
     26#define NLM_MAXCOOKIELEN    	32
     27#define NLM_MAXSTRLEN		1024
     28
     29#define	nlm_granted		cpu_to_be32(NLM_LCK_GRANTED)
     30#define	nlm_lck_denied		cpu_to_be32(NLM_LCK_DENIED)
     31#define	nlm_lck_denied_nolocks	cpu_to_be32(NLM_LCK_DENIED_NOLOCKS)
     32#define	nlm_lck_blocked		cpu_to_be32(NLM_LCK_BLOCKED)
     33#define	nlm_lck_denied_grace_period	cpu_to_be32(NLM_LCK_DENIED_GRACE_PERIOD)
     34
     35#define nlm_drop_reply		cpu_to_be32(30000)
     36
     37/* Lock info passed via NLM */
     38struct nlm_lock {
     39	char *			caller;
     40	unsigned int		len; 	/* length of "caller" */
     41	struct nfs_fh		fh;
     42	struct xdr_netobj	oh;
     43	u32			svid;
     44	struct file_lock	fl;
     45};
     46
     47/*
     48 *	NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes.
     49 *	FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to
     50 *	32 bytes.
     51 */
     52 
     53struct nlm_cookie
     54{
     55	unsigned char data[NLM_MAXCOOKIELEN];
     56	unsigned int len;
     57};
     58
     59/*
     60 * Generic lockd arguments for all but sm_notify
     61 */
     62struct nlm_args {
     63	struct nlm_cookie	cookie;
     64	struct nlm_lock		lock;
     65	u32			block;
     66	u32			reclaim;
     67	u32			state;
     68	u32			monitor;
     69	u32			fsm_access;
     70	u32			fsm_mode;
     71};
     72
     73typedef struct nlm_args nlm_args;
     74
     75/*
     76 * Generic lockd result
     77 */
     78struct nlm_res {
     79	struct nlm_cookie	cookie;
     80	__be32			status;
     81	struct nlm_lock		lock;
     82};
     83
     84/*
     85 * statd callback when client has rebooted
     86 */
     87struct nlm_reboot {
     88	char			*mon;
     89	unsigned int		len;
     90	u32			state;
     91	struct nsm_private	priv;
     92};
     93
     94/*
     95 * Contents of statd callback when monitored host rebooted
     96 */
     97#define NLMSVC_XDRSIZE		sizeof(struct nlm_args)
     98
     99bool	nlmsvc_decode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    100bool	nlmsvc_decode_testargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    101bool	nlmsvc_decode_lockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    102bool	nlmsvc_decode_cancargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    103bool	nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    104bool	nlmsvc_decode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    105bool	nlmsvc_decode_reboot(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    106bool	nlmsvc_decode_shareargs(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    107bool	nlmsvc_decode_notify(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    108
    109bool	nlmsvc_encode_testres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    110bool	nlmsvc_encode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    111bool	nlmsvc_encode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    112bool	nlmsvc_encode_shareres(struct svc_rqst *rqstp, struct xdr_stream *xdr);
    113
    114#endif /* LOCKD_XDR_H */