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usr
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src
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linux-headers-6.8.0-88
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include
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linux
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lockd
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Filename :
xdr.h
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/* SPDX-License-Identifier: GPL-2.0 */ /* * linux/include/linux/lockd/xdr.h * * XDR types for the NLM protocol * * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> */ #ifndef LOCKD_XDR_H #define LOCKD_XDR_H #include <linux/fs.h> #include <linux/filelock.h> #include <linux/nfs.h> #include <linux/sunrpc/xdr.h> #define SM_MAXSTRLEN 1024 #define SM_PRIV_SIZE 16 struct nsm_private { unsigned char data[SM_PRIV_SIZE]; }; struct svc_rqst; #define NLM_MAXCOOKIELEN 32 #define NLM_MAXSTRLEN 1024 #define nlm_granted cpu_to_be32(NLM_LCK_GRANTED) #define nlm_lck_denied cpu_to_be32(NLM_LCK_DENIED) #define nlm_lck_denied_nolocks cpu_to_be32(NLM_LCK_DENIED_NOLOCKS) #define nlm_lck_blocked cpu_to_be32(NLM_LCK_BLOCKED) #define nlm_lck_denied_grace_period cpu_to_be32(NLM_LCK_DENIED_GRACE_PERIOD) #define nlm_drop_reply cpu_to_be32(30000) /* Lock info passed via NLM */ struct nlm_lock { char * caller; unsigned int len; /* length of "caller" */ struct nfs_fh fh; struct xdr_netobj oh; u32 svid; u64 lock_start; u64 lock_len; struct file_lock fl; }; /* * NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes. * FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to * 32 bytes. */ struct nlm_cookie { unsigned char data[NLM_MAXCOOKIELEN]; unsigned int len; }; /* * Generic lockd arguments for all but sm_notify */ struct nlm_args { struct nlm_cookie cookie; struct nlm_lock lock; u32 block; u32 reclaim; u32 state; u32 monitor; u32 fsm_access; u32 fsm_mode; }; typedef struct nlm_args nlm_args; /* * Generic lockd result */ struct nlm_res { struct nlm_cookie cookie; __be32 status; struct nlm_lock lock; }; /* * statd callback when client has rebooted */ struct nlm_reboot { char *mon; unsigned int len; u32 state; struct nsm_private priv; }; /* * Contents of statd callback when monitored host rebooted */ #define NLMSVC_XDRSIZE sizeof(struct nlm_args) bool nlmsvc_decode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_testargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_lockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_cancargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_unlockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_reboot(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_shareargs(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_decode_notify(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_encode_testres(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_encode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_encode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr); bool nlmsvc_encode_shareres(struct svc_rqst *rqstp, struct xdr_stream *xdr); #endif /* LOCKD_XDR_H */