xdr.h
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上传日期:2009-04-28
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- /*
- * 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/nfs.h>
- #include <linux/sunrpc/xdr.h>
- #define NLM_MAXCOOKIELEN 32
- #define NLM_MAXSTRLEN 1024
- #define nlm_granted __constant_htonl(NLM_LCK_GRANTED)
- #define nlm_lck_denied __constant_htonl(NLM_LCK_DENIED)
- #define nlm_lck_denied_nolocks __constant_htonl(NLM_LCK_DENIED_NOLOCKS)
- #define nlm_lck_blocked __constant_htonl(NLM_LCK_BLOCKED)
- #define nlm_lck_denied_grace_period __constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD)
- /* Lock info passed via NLM */
- struct nlm_lock {
- char * caller;
- int len; /* length of "caller" */
- struct nfs_fh fh;
- struct xdr_netobj oh;
- 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;
- u32 status;
- struct nlm_lock lock;
- };
- /*
- * statd callback when client has rebooted
- */
- struct nlm_reboot {
- char * mon;
- int len;
- u32 state;
- u32 addr;
- u32 vers;
- u32 proto;
- };
- /*
- * Contents of statd callback when monitored host rebooted
- */
- #define NLMSVC_XDRSIZE sizeof(struct nlm_args)
- int nlmsvc_decode_testargs(struct svc_rqst *, u32 *, struct nlm_args *);
- int nlmsvc_encode_testres(struct svc_rqst *, u32 *, struct nlm_res *);
- int nlmsvc_decode_lockargs(struct svc_rqst *, u32 *, struct nlm_args *);
- int nlmsvc_decode_cancargs(struct svc_rqst *, u32 *, struct nlm_args *);
- int nlmsvc_decode_unlockargs(struct svc_rqst *, u32 *, struct nlm_args *);
- int nlmsvc_encode_res(struct svc_rqst *, u32 *, struct nlm_res *);
- int nlmsvc_decode_res(struct svc_rqst *, u32 *, struct nlm_res *);
- int nlmsvc_encode_void(struct svc_rqst *, u32 *, void *);
- int nlmsvc_decode_void(struct svc_rqst *, u32 *, void *);
- int nlmsvc_decode_shareargs(struct svc_rqst *, u32 *, struct nlm_args *);
- int nlmsvc_encode_shareres(struct svc_rqst *, u32 *, struct nlm_res *);
- int nlmsvc_decode_notify(struct svc_rqst *, u32 *, struct nlm_args *);
- int nlmsvc_decode_reboot(struct svc_rqst *, u32 *, struct nlm_reboot *);
- /*
- int nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *);
- int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
- int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *);
- int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *);
- */
- #endif /* LOCKD_XDR_H */