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Diffstat (limited to 'xlators/nfs/server/src/nfs3.h')
| -rw-r--r-- | xlators/nfs/server/src/nfs3.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/xlators/nfs/server/src/nfs3.h b/xlators/nfs/server/src/nfs3.h new file mode 100644 index 000000000..1ec5a20a8 --- /dev/null +++ b/xlators/nfs/server/src/nfs3.h @@ -0,0 +1,202 @@ +/* + Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com> + 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 + <http://www.gnu.org/licenses/>. +*/ + +#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 <sys/statvfs.h> + +#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; +}; + +#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; + + /* 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 |