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https://github.com/edk2-porting/linux-next.git
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788f7183fb
Start off the conversion to xdr_stream by de-duplicating the functions that decode void arguments and encode void results. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
928 lines
24 KiB
C
928 lines
24 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Process version 3 NFS requests.
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*
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* Copyright (C) 1996, 1997, 1998 Olaf Kirch <okir@monad.swb.de>
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*/
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#include <linux/fs.h>
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#include <linux/ext2_fs.h>
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#include <linux/magic.h>
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#include "cache.h"
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#include "xdr3.h"
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#include "vfs.h"
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#define NFSDDBG_FACILITY NFSDDBG_PROC
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static int nfs3_ftypes[] = {
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0, /* NF3NON */
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S_IFREG, /* NF3REG */
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S_IFDIR, /* NF3DIR */
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S_IFBLK, /* NF3BLK */
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S_IFCHR, /* NF3CHR */
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S_IFLNK, /* NF3LNK */
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S_IFSOCK, /* NF3SOCK */
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S_IFIFO, /* NF3FIFO */
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};
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/*
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* NULL call.
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*/
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static __be32
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nfsd3_proc_null(struct svc_rqst *rqstp)
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{
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return rpc_success;
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}
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/*
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* Get a file's attributes
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*/
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static __be32
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nfsd3_proc_getattr(struct svc_rqst *rqstp)
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{
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struct nfsd_fhandle *argp = rqstp->rq_argp;
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struct nfsd3_attrstat *resp = rqstp->rq_resp;
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dprintk("nfsd: GETATTR(3) %s\n",
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SVCFH_fmt(&argp->fh));
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fh_copy(&resp->fh, &argp->fh);
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resp->status = fh_verify(rqstp, &resp->fh, 0,
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NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
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if (resp->status != nfs_ok)
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goto out;
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resp->status = fh_getattr(&resp->fh, &resp->stat);
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out:
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return rpc_success;
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}
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/*
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* Set a file's attributes
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*/
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static __be32
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nfsd3_proc_setattr(struct svc_rqst *rqstp)
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{
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struct nfsd3_sattrargs *argp = rqstp->rq_argp;
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struct nfsd3_attrstat *resp = rqstp->rq_resp;
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dprintk("nfsd: SETATTR(3) %s\n",
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SVCFH_fmt(&argp->fh));
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fh_copy(&resp->fh, &argp->fh);
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resp->status = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,
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argp->check_guard, argp->guardtime);
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return rpc_success;
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}
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/*
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* Look up a path name component
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*/
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static __be32
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nfsd3_proc_lookup(struct svc_rqst *rqstp)
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{
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struct nfsd3_diropargs *argp = rqstp->rq_argp;
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struct nfsd3_diropres *resp = rqstp->rq_resp;
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dprintk("nfsd: LOOKUP(3) %s %.*s\n",
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SVCFH_fmt(&argp->fh),
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argp->len,
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argp->name);
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fh_copy(&resp->dirfh, &argp->fh);
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fh_init(&resp->fh, NFS3_FHSIZE);
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resp->status = nfsd_lookup(rqstp, &resp->dirfh,
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argp->name, argp->len,
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&resp->fh);
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return rpc_success;
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}
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/*
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* Check file access
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*/
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static __be32
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nfsd3_proc_access(struct svc_rqst *rqstp)
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{
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struct nfsd3_accessargs *argp = rqstp->rq_argp;
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struct nfsd3_accessres *resp = rqstp->rq_resp;
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dprintk("nfsd: ACCESS(3) %s 0x%x\n",
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SVCFH_fmt(&argp->fh),
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argp->access);
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fh_copy(&resp->fh, &argp->fh);
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resp->access = argp->access;
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resp->status = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
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return rpc_success;
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}
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/*
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* Read a symlink.
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*/
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static __be32
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nfsd3_proc_readlink(struct svc_rqst *rqstp)
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{
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struct nfsd3_readlinkargs *argp = rqstp->rq_argp;
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struct nfsd3_readlinkres *resp = rqstp->rq_resp;
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dprintk("nfsd: READLINK(3) %s\n", SVCFH_fmt(&argp->fh));
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/* Read the symlink. */
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fh_copy(&resp->fh, &argp->fh);
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resp->len = NFS3_MAXPATHLEN;
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resp->status = nfsd_readlink(rqstp, &resp->fh, argp->buffer, &resp->len);
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return rpc_success;
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}
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/*
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* Read a portion of a file.
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*/
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static __be32
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nfsd3_proc_read(struct svc_rqst *rqstp)
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{
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struct nfsd3_readargs *argp = rqstp->rq_argp;
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struct nfsd3_readres *resp = rqstp->rq_resp;
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u32 max_blocksize = svc_max_payload(rqstp);
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unsigned long cnt = min(argp->count, max_blocksize);
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dprintk("nfsd: READ(3) %s %lu bytes at %Lu\n",
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SVCFH_fmt(&argp->fh),
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(unsigned long) argp->count,
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(unsigned long long) argp->offset);
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/* Obtain buffer pointer for payload.
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* 1 (status) + 22 (post_op_attr) + 1 (count) + 1 (eof)
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* + 1 (xdr opaque byte count) = 26
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*/
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resp->count = cnt;
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svc_reserve_auth(rqstp, ((1 + NFS3_POST_OP_ATTR_WORDS + 3)<<2) + resp->count +4);
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fh_copy(&resp->fh, &argp->fh);
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resp->status = nfsd_read(rqstp, &resp->fh, argp->offset,
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rqstp->rq_vec, argp->vlen, &resp->count,
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&resp->eof);
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return rpc_success;
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}
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/*
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* Write data to a file
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*/
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static __be32
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nfsd3_proc_write(struct svc_rqst *rqstp)
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{
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struct nfsd3_writeargs *argp = rqstp->rq_argp;
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struct nfsd3_writeres *resp = rqstp->rq_resp;
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unsigned long cnt = argp->len;
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unsigned int nvecs;
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dprintk("nfsd: WRITE(3) %s %d bytes at %Lu%s\n",
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SVCFH_fmt(&argp->fh),
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argp->len,
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(unsigned long long) argp->offset,
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argp->stable? " stable" : "");
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fh_copy(&resp->fh, &argp->fh);
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resp->committed = argp->stable;
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nvecs = svc_fill_write_vector(rqstp, rqstp->rq_arg.pages,
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&argp->first, cnt);
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if (!nvecs) {
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resp->status = nfserr_io;
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goto out;
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}
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resp->status = nfsd_write(rqstp, &resp->fh, argp->offset,
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rqstp->rq_vec, nvecs, &cnt,
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resp->committed, resp->verf);
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resp->count = cnt;
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out:
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return rpc_success;
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}
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/*
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* With NFSv3, CREATE processing is a lot easier than with NFSv2.
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* At least in theory; we'll see how it fares in practice when the
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* first reports about SunOS compatibility problems start to pour in...
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*/
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static __be32
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nfsd3_proc_create(struct svc_rqst *rqstp)
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{
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struct nfsd3_createargs *argp = rqstp->rq_argp;
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struct nfsd3_diropres *resp = rqstp->rq_resp;
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svc_fh *dirfhp, *newfhp = NULL;
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struct iattr *attr;
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dprintk("nfsd: CREATE(3) %s %.*s\n",
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SVCFH_fmt(&argp->fh),
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argp->len,
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argp->name);
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dirfhp = fh_copy(&resp->dirfh, &argp->fh);
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newfhp = fh_init(&resp->fh, NFS3_FHSIZE);
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attr = &argp->attrs;
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/* Unfudge the mode bits */
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attr->ia_mode &= ~S_IFMT;
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if (!(attr->ia_valid & ATTR_MODE)) {
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attr->ia_valid |= ATTR_MODE;
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attr->ia_mode = S_IFREG;
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} else {
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attr->ia_mode = (attr->ia_mode & ~S_IFMT) | S_IFREG;
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}
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/* Now create the file and set attributes */
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resp->status = do_nfsd_create(rqstp, dirfhp, argp->name, argp->len,
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attr, newfhp, argp->createmode,
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(u32 *)argp->verf, NULL, NULL);
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return rpc_success;
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}
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/*
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* Make directory. This operation is not idempotent.
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*/
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static __be32
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nfsd3_proc_mkdir(struct svc_rqst *rqstp)
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{
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struct nfsd3_createargs *argp = rqstp->rq_argp;
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struct nfsd3_diropres *resp = rqstp->rq_resp;
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dprintk("nfsd: MKDIR(3) %s %.*s\n",
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SVCFH_fmt(&argp->fh),
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argp->len,
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argp->name);
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argp->attrs.ia_valid &= ~ATTR_SIZE;
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fh_copy(&resp->dirfh, &argp->fh);
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fh_init(&resp->fh, NFS3_FHSIZE);
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resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
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&argp->attrs, S_IFDIR, 0, &resp->fh);
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fh_unlock(&resp->dirfh);
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return rpc_success;
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}
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static __be32
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nfsd3_proc_symlink(struct svc_rqst *rqstp)
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{
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struct nfsd3_symlinkargs *argp = rqstp->rq_argp;
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struct nfsd3_diropres *resp = rqstp->rq_resp;
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if (argp->tlen == 0) {
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resp->status = nfserr_inval;
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goto out;
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}
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if (argp->tlen > NFS3_MAXPATHLEN) {
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resp->status = nfserr_nametoolong;
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goto out;
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}
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argp->tname = svc_fill_symlink_pathname(rqstp, &argp->first,
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page_address(rqstp->rq_arg.pages[0]),
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argp->tlen);
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if (IS_ERR(argp->tname)) {
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resp->status = nfserrno(PTR_ERR(argp->tname));
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goto out;
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}
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dprintk("nfsd: SYMLINK(3) %s %.*s -> %.*s\n",
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SVCFH_fmt(&argp->ffh),
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argp->flen, argp->fname,
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argp->tlen, argp->tname);
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fh_copy(&resp->dirfh, &argp->ffh);
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fh_init(&resp->fh, NFS3_FHSIZE);
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resp->status = nfsd_symlink(rqstp, &resp->dirfh, argp->fname,
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argp->flen, argp->tname, &resp->fh);
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kfree(argp->tname);
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out:
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return rpc_success;
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}
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/*
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* Make socket/fifo/device.
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*/
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static __be32
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nfsd3_proc_mknod(struct svc_rqst *rqstp)
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{
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struct nfsd3_mknodargs *argp = rqstp->rq_argp;
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struct nfsd3_diropres *resp = rqstp->rq_resp;
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int type;
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dev_t rdev = 0;
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dprintk("nfsd: MKNOD(3) %s %.*s\n",
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SVCFH_fmt(&argp->fh),
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argp->len,
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argp->name);
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fh_copy(&resp->dirfh, &argp->fh);
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fh_init(&resp->fh, NFS3_FHSIZE);
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if (argp->ftype == NF3CHR || argp->ftype == NF3BLK) {
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rdev = MKDEV(argp->major, argp->minor);
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if (MAJOR(rdev) != argp->major ||
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MINOR(rdev) != argp->minor) {
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resp->status = nfserr_inval;
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goto out;
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}
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} else if (argp->ftype != NF3SOCK && argp->ftype != NF3FIFO) {
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resp->status = nfserr_badtype;
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goto out;
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}
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type = nfs3_ftypes[argp->ftype];
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resp->status = nfsd_create(rqstp, &resp->dirfh, argp->name, argp->len,
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&argp->attrs, type, rdev, &resp->fh);
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fh_unlock(&resp->dirfh);
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out:
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return rpc_success;
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}
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/*
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* Remove file/fifo/socket etc.
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*/
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static __be32
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nfsd3_proc_remove(struct svc_rqst *rqstp)
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{
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struct nfsd3_diropargs *argp = rqstp->rq_argp;
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struct nfsd3_attrstat *resp = rqstp->rq_resp;
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dprintk("nfsd: REMOVE(3) %s %.*s\n",
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SVCFH_fmt(&argp->fh),
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argp->len,
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argp->name);
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/* Unlink. -S_IFDIR means file must not be a directory */
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fh_copy(&resp->fh, &argp->fh);
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resp->status = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR,
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argp->name, argp->len);
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fh_unlock(&resp->fh);
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return rpc_success;
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}
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/*
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* Remove a directory
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*/
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static __be32
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nfsd3_proc_rmdir(struct svc_rqst *rqstp)
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{
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struct nfsd3_diropargs *argp = rqstp->rq_argp;
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struct nfsd3_attrstat *resp = rqstp->rq_resp;
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dprintk("nfsd: RMDIR(3) %s %.*s\n",
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SVCFH_fmt(&argp->fh),
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argp->len,
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argp->name);
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fh_copy(&resp->fh, &argp->fh);
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resp->status = nfsd_unlink(rqstp, &resp->fh, S_IFDIR,
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argp->name, argp->len);
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fh_unlock(&resp->fh);
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return rpc_success;
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}
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static __be32
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nfsd3_proc_rename(struct svc_rqst *rqstp)
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{
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struct nfsd3_renameargs *argp = rqstp->rq_argp;
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struct nfsd3_renameres *resp = rqstp->rq_resp;
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dprintk("nfsd: RENAME(3) %s %.*s ->\n",
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SVCFH_fmt(&argp->ffh),
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argp->flen,
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argp->fname);
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dprintk("nfsd: -> %s %.*s\n",
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SVCFH_fmt(&argp->tfh),
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argp->tlen,
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argp->tname);
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fh_copy(&resp->ffh, &argp->ffh);
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fh_copy(&resp->tfh, &argp->tfh);
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resp->status = nfsd_rename(rqstp, &resp->ffh, argp->fname, argp->flen,
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&resp->tfh, argp->tname, argp->tlen);
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return rpc_success;
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}
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static __be32
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nfsd3_proc_link(struct svc_rqst *rqstp)
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{
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struct nfsd3_linkargs *argp = rqstp->rq_argp;
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struct nfsd3_linkres *resp = rqstp->rq_resp;
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dprintk("nfsd: LINK(3) %s ->\n",
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SVCFH_fmt(&argp->ffh));
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dprintk("nfsd: -> %s %.*s\n",
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SVCFH_fmt(&argp->tfh),
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argp->tlen,
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argp->tname);
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fh_copy(&resp->fh, &argp->ffh);
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fh_copy(&resp->tfh, &argp->tfh);
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resp->status = nfsd_link(rqstp, &resp->tfh, argp->tname, argp->tlen,
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&resp->fh);
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return rpc_success;
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}
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|
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/*
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* Read a portion of a directory.
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*/
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static __be32
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nfsd3_proc_readdir(struct svc_rqst *rqstp)
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{
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struct nfsd3_readdirargs *argp = rqstp->rq_argp;
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struct nfsd3_readdirres *resp = rqstp->rq_resp;
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int count = 0;
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struct page **p;
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caddr_t page_addr = NULL;
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dprintk("nfsd: READDIR(3) %s %d bytes at %d\n",
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SVCFH_fmt(&argp->fh),
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argp->count, (u32) argp->cookie);
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/* Make sure we've room for the NULL ptr & eof flag, and shrink to
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* client read size */
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count = (argp->count >> 2) - 2;
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|
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/* Read directory and encode entries on the fly */
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fh_copy(&resp->fh, &argp->fh);
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resp->buflen = count;
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resp->common.err = nfs_ok;
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resp->buffer = argp->buffer;
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resp->rqstp = rqstp;
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resp->status = nfsd_readdir(rqstp, &resp->fh, (loff_t *)&argp->cookie,
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&resp->common, nfs3svc_encode_entry);
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memcpy(resp->verf, argp->verf, 8);
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count = 0;
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for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
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page_addr = page_address(*p);
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|
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if (((caddr_t)resp->buffer >= page_addr) &&
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((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
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count += (caddr_t)resp->buffer - page_addr;
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break;
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}
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count += PAGE_SIZE;
|
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}
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resp->count = count >> 2;
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if (resp->offset) {
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loff_t offset = argp->cookie;
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|
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if (unlikely(resp->offset1)) {
|
|
/* we ended up with offset on a page boundary */
|
|
*resp->offset = htonl(offset >> 32);
|
|
*resp->offset1 = htonl(offset & 0xffffffff);
|
|
resp->offset1 = NULL;
|
|
} else {
|
|
xdr_encode_hyper(resp->offset, offset);
|
|
}
|
|
resp->offset = NULL;
|
|
}
|
|
|
|
return rpc_success;
|
|
}
|
|
|
|
/*
|
|
* Read a portion of a directory, including file handles and attrs.
|
|
* For now, we choose to ignore the dircount parameter.
|
|
*/
|
|
static __be32
|
|
nfsd3_proc_readdirplus(struct svc_rqst *rqstp)
|
|
{
|
|
struct nfsd3_readdirargs *argp = rqstp->rq_argp;
|
|
struct nfsd3_readdirres *resp = rqstp->rq_resp;
|
|
int count = 0;
|
|
loff_t offset;
|
|
struct page **p;
|
|
caddr_t page_addr = NULL;
|
|
|
|
dprintk("nfsd: READDIR+(3) %s %d bytes at %d\n",
|
|
SVCFH_fmt(&argp->fh),
|
|
argp->count, (u32) argp->cookie);
|
|
|
|
/* Convert byte count to number of words (i.e. >> 2),
|
|
* and reserve room for the NULL ptr & eof flag (-2 words) */
|
|
resp->count = (argp->count >> 2) - 2;
|
|
|
|
/* Read directory and encode entries on the fly */
|
|
fh_copy(&resp->fh, &argp->fh);
|
|
|
|
resp->common.err = nfs_ok;
|
|
resp->buffer = argp->buffer;
|
|
resp->buflen = resp->count;
|
|
resp->rqstp = rqstp;
|
|
offset = argp->cookie;
|
|
|
|
resp->status = fh_verify(rqstp, &resp->fh, S_IFDIR, NFSD_MAY_NOP);
|
|
if (resp->status != nfs_ok)
|
|
goto out;
|
|
|
|
if (resp->fh.fh_export->ex_flags & NFSEXP_NOREADDIRPLUS) {
|
|
resp->status = nfserr_notsupp;
|
|
goto out;
|
|
}
|
|
|
|
resp->status = nfsd_readdir(rqstp, &resp->fh, &offset,
|
|
&resp->common, nfs3svc_encode_entry_plus);
|
|
memcpy(resp->verf, argp->verf, 8);
|
|
for (p = rqstp->rq_respages + 1; p < rqstp->rq_next_page; p++) {
|
|
page_addr = page_address(*p);
|
|
|
|
if (((caddr_t)resp->buffer >= page_addr) &&
|
|
((caddr_t)resp->buffer < page_addr + PAGE_SIZE)) {
|
|
count += (caddr_t)resp->buffer - page_addr;
|
|
break;
|
|
}
|
|
count += PAGE_SIZE;
|
|
}
|
|
resp->count = count >> 2;
|
|
if (resp->offset) {
|
|
if (unlikely(resp->offset1)) {
|
|
/* we ended up with offset on a page boundary */
|
|
*resp->offset = htonl(offset >> 32);
|
|
*resp->offset1 = htonl(offset & 0xffffffff);
|
|
resp->offset1 = NULL;
|
|
} else {
|
|
xdr_encode_hyper(resp->offset, offset);
|
|
}
|
|
resp->offset = NULL;
|
|
}
|
|
|
|
out:
|
|
return rpc_success;
|
|
}
|
|
|
|
/*
|
|
* Get file system stats
|
|
*/
|
|
static __be32
|
|
nfsd3_proc_fsstat(struct svc_rqst *rqstp)
|
|
{
|
|
struct nfsd_fhandle *argp = rqstp->rq_argp;
|
|
struct nfsd3_fsstatres *resp = rqstp->rq_resp;
|
|
|
|
dprintk("nfsd: FSSTAT(3) %s\n",
|
|
SVCFH_fmt(&argp->fh));
|
|
|
|
resp->status = nfsd_statfs(rqstp, &argp->fh, &resp->stats, 0);
|
|
fh_put(&argp->fh);
|
|
return rpc_success;
|
|
}
|
|
|
|
/*
|
|
* Get file system info
|
|
*/
|
|
static __be32
|
|
nfsd3_proc_fsinfo(struct svc_rqst *rqstp)
|
|
{
|
|
struct nfsd_fhandle *argp = rqstp->rq_argp;
|
|
struct nfsd3_fsinfores *resp = rqstp->rq_resp;
|
|
u32 max_blocksize = svc_max_payload(rqstp);
|
|
|
|
dprintk("nfsd: FSINFO(3) %s\n",
|
|
SVCFH_fmt(&argp->fh));
|
|
|
|
resp->f_rtmax = max_blocksize;
|
|
resp->f_rtpref = max_blocksize;
|
|
resp->f_rtmult = PAGE_SIZE;
|
|
resp->f_wtmax = max_blocksize;
|
|
resp->f_wtpref = max_blocksize;
|
|
resp->f_wtmult = PAGE_SIZE;
|
|
resp->f_dtpref = max_blocksize;
|
|
resp->f_maxfilesize = ~(u32) 0;
|
|
resp->f_properties = NFS3_FSF_DEFAULT;
|
|
|
|
resp->status = fh_verify(rqstp, &argp->fh, 0,
|
|
NFSD_MAY_NOP | NFSD_MAY_BYPASS_GSS_ON_ROOT);
|
|
|
|
/* Check special features of the file system. May request
|
|
* different read/write sizes for file systems known to have
|
|
* problems with large blocks */
|
|
if (resp->status == nfs_ok) {
|
|
struct super_block *sb = argp->fh.fh_dentry->d_sb;
|
|
|
|
/* Note that we don't care for remote fs's here */
|
|
if (sb->s_magic == MSDOS_SUPER_MAGIC) {
|
|
resp->f_properties = NFS3_FSF_BILLYBOY;
|
|
}
|
|
resp->f_maxfilesize = sb->s_maxbytes;
|
|
}
|
|
|
|
fh_put(&argp->fh);
|
|
return rpc_success;
|
|
}
|
|
|
|
/*
|
|
* Get pathconf info for the specified file
|
|
*/
|
|
static __be32
|
|
nfsd3_proc_pathconf(struct svc_rqst *rqstp)
|
|
{
|
|
struct nfsd_fhandle *argp = rqstp->rq_argp;
|
|
struct nfsd3_pathconfres *resp = rqstp->rq_resp;
|
|
|
|
dprintk("nfsd: PATHCONF(3) %s\n",
|
|
SVCFH_fmt(&argp->fh));
|
|
|
|
/* Set default pathconf */
|
|
resp->p_link_max = 255; /* at least */
|
|
resp->p_name_max = 255; /* at least */
|
|
resp->p_no_trunc = 0;
|
|
resp->p_chown_restricted = 1;
|
|
resp->p_case_insensitive = 0;
|
|
resp->p_case_preserving = 1;
|
|
|
|
resp->status = fh_verify(rqstp, &argp->fh, 0, NFSD_MAY_NOP);
|
|
|
|
if (resp->status == nfs_ok) {
|
|
struct super_block *sb = argp->fh.fh_dentry->d_sb;
|
|
|
|
/* Note that we don't care for remote fs's here */
|
|
switch (sb->s_magic) {
|
|
case EXT2_SUPER_MAGIC:
|
|
resp->p_link_max = EXT2_LINK_MAX;
|
|
resp->p_name_max = EXT2_NAME_LEN;
|
|
break;
|
|
case MSDOS_SUPER_MAGIC:
|
|
resp->p_case_insensitive = 1;
|
|
resp->p_case_preserving = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
fh_put(&argp->fh);
|
|
return rpc_success;
|
|
}
|
|
|
|
/*
|
|
* Commit a file (range) to stable storage.
|
|
*/
|
|
static __be32
|
|
nfsd3_proc_commit(struct svc_rqst *rqstp)
|
|
{
|
|
struct nfsd3_commitargs *argp = rqstp->rq_argp;
|
|
struct nfsd3_commitres *resp = rqstp->rq_resp;
|
|
|
|
dprintk("nfsd: COMMIT(3) %s %u@%Lu\n",
|
|
SVCFH_fmt(&argp->fh),
|
|
argp->count,
|
|
(unsigned long long) argp->offset);
|
|
|
|
if (argp->offset > NFS_OFFSET_MAX) {
|
|
resp->status = nfserr_inval;
|
|
goto out;
|
|
}
|
|
|
|
fh_copy(&resp->fh, &argp->fh);
|
|
resp->status = nfsd_commit(rqstp, &resp->fh, argp->offset,
|
|
argp->count, resp->verf);
|
|
out:
|
|
return rpc_success;
|
|
}
|
|
|
|
|
|
/*
|
|
* NFSv3 Server procedures.
|
|
* Only the results of non-idempotent operations are cached.
|
|
*/
|
|
#define nfs3svc_decode_fhandleargs nfs3svc_decode_fhandle
|
|
#define nfs3svc_encode_attrstatres nfs3svc_encode_attrstat
|
|
#define nfs3svc_encode_wccstatres nfs3svc_encode_wccstat
|
|
#define nfsd3_mkdirargs nfsd3_createargs
|
|
#define nfsd3_readdirplusargs nfsd3_readdirargs
|
|
#define nfsd3_fhandleargs nfsd_fhandle
|
|
#define nfsd3_attrstatres nfsd3_attrstat
|
|
#define nfsd3_wccstatres nfsd3_attrstat
|
|
#define nfsd3_createres nfsd3_diropres
|
|
|
|
#define ST 1 /* status*/
|
|
#define FH 17 /* filehandle with length */
|
|
#define AT 21 /* attributes */
|
|
#define pAT (1+AT) /* post attributes - conditional */
|
|
#define WC (7+pAT) /* WCC attributes */
|
|
|
|
static const struct svc_procedure nfsd_procedures3[22] = {
|
|
[NFS3PROC_NULL] = {
|
|
.pc_func = nfsd3_proc_null,
|
|
.pc_decode = nfssvc_decode_voidarg,
|
|
.pc_encode = nfssvc_encode_voidres,
|
|
.pc_argsize = sizeof(struct nfsd_voidargs),
|
|
.pc_ressize = sizeof(struct nfsd_voidres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST,
|
|
},
|
|
[NFS3PROC_GETATTR] = {
|
|
.pc_func = nfsd3_proc_getattr,
|
|
.pc_decode = nfs3svc_decode_fhandleargs,
|
|
.pc_encode = nfs3svc_encode_attrstatres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_fhandleargs),
|
|
.pc_ressize = sizeof(struct nfsd3_attrstatres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+AT,
|
|
},
|
|
[NFS3PROC_SETATTR] = {
|
|
.pc_func = nfsd3_proc_setattr,
|
|
.pc_decode = nfs3svc_decode_sattrargs,
|
|
.pc_encode = nfs3svc_encode_wccstatres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_sattrargs),
|
|
.pc_ressize = sizeof(struct nfsd3_wccstatres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+WC,
|
|
},
|
|
[NFS3PROC_LOOKUP] = {
|
|
.pc_func = nfsd3_proc_lookup,
|
|
.pc_decode = nfs3svc_decode_diropargs,
|
|
.pc_encode = nfs3svc_encode_diropres,
|
|
.pc_release = nfs3svc_release_fhandle2,
|
|
.pc_argsize = sizeof(struct nfsd3_diropargs),
|
|
.pc_ressize = sizeof(struct nfsd3_diropres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+FH+pAT+pAT,
|
|
},
|
|
[NFS3PROC_ACCESS] = {
|
|
.pc_func = nfsd3_proc_access,
|
|
.pc_decode = nfs3svc_decode_accessargs,
|
|
.pc_encode = nfs3svc_encode_accessres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_accessargs),
|
|
.pc_ressize = sizeof(struct nfsd3_accessres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+pAT+1,
|
|
},
|
|
[NFS3PROC_READLINK] = {
|
|
.pc_func = nfsd3_proc_readlink,
|
|
.pc_decode = nfs3svc_decode_readlinkargs,
|
|
.pc_encode = nfs3svc_encode_readlinkres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_readlinkargs),
|
|
.pc_ressize = sizeof(struct nfsd3_readlinkres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+pAT+1+NFS3_MAXPATHLEN/4,
|
|
},
|
|
[NFS3PROC_READ] = {
|
|
.pc_func = nfsd3_proc_read,
|
|
.pc_decode = nfs3svc_decode_readargs,
|
|
.pc_encode = nfs3svc_encode_readres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_readargs),
|
|
.pc_ressize = sizeof(struct nfsd3_readres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+pAT+4+NFSSVC_MAXBLKSIZE/4,
|
|
},
|
|
[NFS3PROC_WRITE] = {
|
|
.pc_func = nfsd3_proc_write,
|
|
.pc_decode = nfs3svc_decode_writeargs,
|
|
.pc_encode = nfs3svc_encode_writeres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_writeargs),
|
|
.pc_ressize = sizeof(struct nfsd3_writeres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+WC+4,
|
|
},
|
|
[NFS3PROC_CREATE] = {
|
|
.pc_func = nfsd3_proc_create,
|
|
.pc_decode = nfs3svc_decode_createargs,
|
|
.pc_encode = nfs3svc_encode_createres,
|
|
.pc_release = nfs3svc_release_fhandle2,
|
|
.pc_argsize = sizeof(struct nfsd3_createargs),
|
|
.pc_ressize = sizeof(struct nfsd3_createres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+(1+FH+pAT)+WC,
|
|
},
|
|
[NFS3PROC_MKDIR] = {
|
|
.pc_func = nfsd3_proc_mkdir,
|
|
.pc_decode = nfs3svc_decode_mkdirargs,
|
|
.pc_encode = nfs3svc_encode_createres,
|
|
.pc_release = nfs3svc_release_fhandle2,
|
|
.pc_argsize = sizeof(struct nfsd3_mkdirargs),
|
|
.pc_ressize = sizeof(struct nfsd3_createres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+(1+FH+pAT)+WC,
|
|
},
|
|
[NFS3PROC_SYMLINK] = {
|
|
.pc_func = nfsd3_proc_symlink,
|
|
.pc_decode = nfs3svc_decode_symlinkargs,
|
|
.pc_encode = nfs3svc_encode_createres,
|
|
.pc_release = nfs3svc_release_fhandle2,
|
|
.pc_argsize = sizeof(struct nfsd3_symlinkargs),
|
|
.pc_ressize = sizeof(struct nfsd3_createres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+(1+FH+pAT)+WC,
|
|
},
|
|
[NFS3PROC_MKNOD] = {
|
|
.pc_func = nfsd3_proc_mknod,
|
|
.pc_decode = nfs3svc_decode_mknodargs,
|
|
.pc_encode = nfs3svc_encode_createres,
|
|
.pc_release = nfs3svc_release_fhandle2,
|
|
.pc_argsize = sizeof(struct nfsd3_mknodargs),
|
|
.pc_ressize = sizeof(struct nfsd3_createres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+(1+FH+pAT)+WC,
|
|
},
|
|
[NFS3PROC_REMOVE] = {
|
|
.pc_func = nfsd3_proc_remove,
|
|
.pc_decode = nfs3svc_decode_diropargs,
|
|
.pc_encode = nfs3svc_encode_wccstatres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_diropargs),
|
|
.pc_ressize = sizeof(struct nfsd3_wccstatres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+WC,
|
|
},
|
|
[NFS3PROC_RMDIR] = {
|
|
.pc_func = nfsd3_proc_rmdir,
|
|
.pc_decode = nfs3svc_decode_diropargs,
|
|
.pc_encode = nfs3svc_encode_wccstatres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_diropargs),
|
|
.pc_ressize = sizeof(struct nfsd3_wccstatres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+WC,
|
|
},
|
|
[NFS3PROC_RENAME] = {
|
|
.pc_func = nfsd3_proc_rename,
|
|
.pc_decode = nfs3svc_decode_renameargs,
|
|
.pc_encode = nfs3svc_encode_renameres,
|
|
.pc_release = nfs3svc_release_fhandle2,
|
|
.pc_argsize = sizeof(struct nfsd3_renameargs),
|
|
.pc_ressize = sizeof(struct nfsd3_renameres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+WC+WC,
|
|
},
|
|
[NFS3PROC_LINK] = {
|
|
.pc_func = nfsd3_proc_link,
|
|
.pc_decode = nfs3svc_decode_linkargs,
|
|
.pc_encode = nfs3svc_encode_linkres,
|
|
.pc_release = nfs3svc_release_fhandle2,
|
|
.pc_argsize = sizeof(struct nfsd3_linkargs),
|
|
.pc_ressize = sizeof(struct nfsd3_linkres),
|
|
.pc_cachetype = RC_REPLBUFF,
|
|
.pc_xdrressize = ST+pAT+WC,
|
|
},
|
|
[NFS3PROC_READDIR] = {
|
|
.pc_func = nfsd3_proc_readdir,
|
|
.pc_decode = nfs3svc_decode_readdirargs,
|
|
.pc_encode = nfs3svc_encode_readdirres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_readdirargs),
|
|
.pc_ressize = sizeof(struct nfsd3_readdirres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
},
|
|
[NFS3PROC_READDIRPLUS] = {
|
|
.pc_func = nfsd3_proc_readdirplus,
|
|
.pc_decode = nfs3svc_decode_readdirplusargs,
|
|
.pc_encode = nfs3svc_encode_readdirres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_readdirplusargs),
|
|
.pc_ressize = sizeof(struct nfsd3_readdirres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
},
|
|
[NFS3PROC_FSSTAT] = {
|
|
.pc_func = nfsd3_proc_fsstat,
|
|
.pc_decode = nfs3svc_decode_fhandleargs,
|
|
.pc_encode = nfs3svc_encode_fsstatres,
|
|
.pc_argsize = sizeof(struct nfsd3_fhandleargs),
|
|
.pc_ressize = sizeof(struct nfsd3_fsstatres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+pAT+2*6+1,
|
|
},
|
|
[NFS3PROC_FSINFO] = {
|
|
.pc_func = nfsd3_proc_fsinfo,
|
|
.pc_decode = nfs3svc_decode_fhandleargs,
|
|
.pc_encode = nfs3svc_encode_fsinfores,
|
|
.pc_argsize = sizeof(struct nfsd3_fhandleargs),
|
|
.pc_ressize = sizeof(struct nfsd3_fsinfores),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+pAT+12,
|
|
},
|
|
[NFS3PROC_PATHCONF] = {
|
|
.pc_func = nfsd3_proc_pathconf,
|
|
.pc_decode = nfs3svc_decode_fhandleargs,
|
|
.pc_encode = nfs3svc_encode_pathconfres,
|
|
.pc_argsize = sizeof(struct nfsd3_fhandleargs),
|
|
.pc_ressize = sizeof(struct nfsd3_pathconfres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+pAT+6,
|
|
},
|
|
[NFS3PROC_COMMIT] = {
|
|
.pc_func = nfsd3_proc_commit,
|
|
.pc_decode = nfs3svc_decode_commitargs,
|
|
.pc_encode = nfs3svc_encode_commitres,
|
|
.pc_release = nfs3svc_release_fhandle,
|
|
.pc_argsize = sizeof(struct nfsd3_commitargs),
|
|
.pc_ressize = sizeof(struct nfsd3_commitres),
|
|
.pc_cachetype = RC_NOCACHE,
|
|
.pc_xdrressize = ST+WC+2,
|
|
},
|
|
};
|
|
|
|
static unsigned int nfsd_count3[ARRAY_SIZE(nfsd_procedures3)];
|
|
const struct svc_version nfsd_version3 = {
|
|
.vs_vers = 3,
|
|
.vs_nproc = 22,
|
|
.vs_proc = nfsd_procedures3,
|
|
.vs_dispatch = nfsd_dispatch,
|
|
.vs_count = nfsd_count3,
|
|
.vs_xdrsize = NFS3_SVC_XDRSIZE,
|
|
};
|