/* Copyright (c) 2010 Gluster, Inc. This file is part of GlusterFS. GlusterFS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. GlusterFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #ifndef _NFS3_H_ #define _NFS3_H_ #ifndef _CONFIG_H #define _CONFIG_H #include "config.h" #endif #include "rpcsvc.h" #include "dict.h" #include "xlator.h" #include "iobuf.h" #include "nfs.h" #include "nfs3-fh.h" #include "nfs-common.h" #include "xdr-nfs3.h" #include "mem-pool.h" #include #define GF_NFS3 GF_NFS"-nfsv3" #define GF_NFS3_PORT 38467 #define GF_NFS3_DEFAULT_MEMFACTOR 15 #define GF_NFS3_IOBPOOL_MULT GF_NFS_CONCURRENT_OPS_MULT #define GF_NFS3_CLTABLE_BUCKETS_MULT 2 #define GF_NFS3_FDTABLE_BUCKETS_MULT 2 /* Static values used for FSINFO FIXME: This should be configurable */ #define GF_NFS3_RTMAX (64 * GF_UNIT_KB) #define GF_NFS3_RTPREF (64 * GF_UNIT_KB) #define GF_NFS3_RTMULT (4 * GF_UNIT_KB) #define GF_NFS3_WTMAX (64 * GF_UNIT_KB) #define GF_NFS3_WTPREF (64 * GF_UNIT_KB) #define GF_NFS3_WTMULT (4 * GF_UNIT_KB) #define GF_NFS3_DTMIN (4 * GF_UNIT_KB) #define GF_NFS3_DTPREF (64 * GF_UNIT_KB) #define GF_NFS3_MAXFILE (1 * GF_UNIT_PB) /* FIXME: Handle time resolutions */ #define GF_NFS3_TIMEDELTA_SECS {1,0} #define GF_NFS3_TIMEDELTA_NSECS {0,1} #define GF_NFS3_TIMEDELTA_MSECS {0,1000000} #define GF_NFS3_FS_PROP (FSF3_LINK | FSF3_SYMLINK | FSF3_HOMOGENEOUS | FSF3_CANSETTIME) #define GF_NFS3_DIRFD_VALID 1 #define GF_NFS3_DIRFD_INVALID 0 #define GF_NFS3_VOLACCESS_RW 1 #define GF_NFS3_VOLACCESS_RO 2 #define GF_NFS3_FDCACHE_SIZE 512 /* This should probably be moved to a more generic layer so that if needed * different versions of NFS protocol can use the same thing. */ struct nfs3_fd_entry { fd_t *cachedfd; struct list_head list; }; /* Per subvolume nfs3 specific state */ struct nfs3_export { xlator_t *subvol; int access; int trusted_sync; int trusted_write; }; #define GF_NFS3_DEFAULT_VOLACCESS (GF_NFS3_VOLACCESS_RW) /* The NFSv3 protocol state */ struct nfs3_state { /* The NFS xlator pointer. The NFS xlator can be running * multiple versions of the NFS protocol. */ xlator_t *nfsx; /* The iob pool from which memory allocations are made for receiving * and sending network messages. */ struct iobuf_pool *iobpool; /* List of child subvolumes for the NFSv3 protocol. * Right now, is simply referring to the list of children in nfsx above. */ xlator_list_t *exportslist; struct nfs3_export *exports; /* Mempool for allocations of struct nfs3_local */ struct mem_pool *localpool; /* Server start-up timestamp, currently used for write verifier. */ uint64_t serverstart; /* NFSv3 Protocol configurables */ size_t readsize; size_t writesize; size_t readdirsize; /* Size of the iobufs used, depends on the sizes of the three params * above. */ size_t iobsize; unsigned int memfactor; struct list_head fdlru; gf_lock_t fdlrulock; int fdcount; }; typedef int (*nfs3_resume_fn_t) (void *cs); /* Structure used to communicate state between a fop and its callback. * Not all members are used at all times. Usage is fop and NFS request * dependent. * * I wish we could have a smaller structure for communicating state * between callers and callbacks. It could be broken into smaller parts * but I feel that will lead to a proliferation of types/structures and then * we'll just be tracking down which structure is used by which fop, not * to mention that having one type allows me to used a single mem-pool. * Imagine the chaos if we need a mem-pool for each one of those sub-structures. */ struct nfs3_local { rpcsvc_request_t *req; xlator_t *vol; nfs3_resume_fn_t resume_fn; xlator_t *nfsx; struct nfs3_state *nfs3state; /* The list hook to attach this call state to the inode's queue till * the opening of the fd on the inode completes. */ struct list_head openwait_q; /* Per-NFSv3 Op state */ struct nfs3_fh parent; struct nfs3_fh fh; fd_t *fd; uint32_t accessbits; int operrno; count3 dircount; count3 maxcount; struct statvfs fsstat; gf_dirent_t entries; struct iatt stbuf; struct iatt preparent; struct iatt postparent; int32_t setattr_valid; nfstime3 timestamp; loc_t oploc; int writetype; count3 datacount; offset3 dataoffset; struct iobuf *iob; createmode3 createmode; uint64_t cookieverf; int sattrguardcheck; char *pathname; ftype3 mknodtype; specdata3 devnums; cookie3 cookie; struct iovec datavec; mode_t mode; /* NFSv3 FH resolver state */ struct nfs3_fh resolvefh; loc_t resolvedloc; int resolve_ret; int resolve_errno; int hashidx; fd_t *resolve_dir_fd; char *resolventry; }; typedef struct nfs3_local nfs3_call_state_t; extern rpcsvc_program_t * nfs3svc_init (xlator_t *nfsx); #endif