adb974068b
sys/nfs, since it is now shared by the two NFS servers. Suggested by: rmacklem Sponsored by: Spectra Logic MFC after: 2 weeks
273 lines
6.4 KiB
C
273 lines
6.4 KiB
C
/*-
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* Copyright (c) 2008 Isilon Inc http://www.isilon.com/
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* Copyright (c) 2013 Spectra Logic Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <fs/nfs/nfsport.h>
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#include <rpc/rpc.h>
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#include <nfs/nfs_fha.h>
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#include <fs/nfs/xdr_subs.h>
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#include <fs/nfs/nfs.h>
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#include <fs/nfs/nfsproto.h>
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#include <fs/nfs/nfsm_subs.h>
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#include <fs/nfsserver/nfs_fha_new.h>
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static void fhanew_init(void *foo);
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static void fhanew_uninit(void *foo);
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rpcproc_t fhanew_get_procnum(rpcproc_t procnum);
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int fhanew_realign(struct mbuf **mb, int malloc_flags);
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int fhanew_get_fh(fhandle_t *fh, int v3, struct mbuf **md, caddr_t *dpos);
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int fhanew_is_read(rpcproc_t procnum);
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int fhanew_is_write(rpcproc_t procnum);
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int fhanew_get_offset(struct mbuf **md, caddr_t *dpos, int v3,
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struct fha_info *info);
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int fhanew_no_offset(rpcproc_t procnum);
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void fhanew_set_locktype(rpcproc_t procnum, struct fha_info *info);
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static int fhenew_stats_sysctl(SYSCTL_HANDLER_ARGS);
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static struct fha_params fhanew_softc;
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SYSCTL_DECL(_vfs_nfsd);
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extern int newnfs_nfsv3_procid[];
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extern SVCPOOL *nfsrvd_pool;
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SYSINIT(nfs_fhanew, SI_SUB_ROOT_CONF, SI_ORDER_ANY, fhanew_init, NULL);
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SYSUNINIT(nfs_fhanew, SI_SUB_ROOT_CONF, SI_ORDER_ANY, fhanew_uninit, NULL);
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static void
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fhanew_init(void *foo)
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{
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struct fha_params *softc;
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softc = &fhanew_softc;
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bzero(softc, sizeof(*softc));
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/*
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* Setup the callbacks for this FHA personality.
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*/
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softc->callbacks.get_procnum = fhanew_get_procnum;
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softc->callbacks.realign = fhanew_realign;
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softc->callbacks.get_fh = fhanew_get_fh;
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softc->callbacks.is_read = fhanew_is_read;
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softc->callbacks.is_write = fhanew_is_write;
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softc->callbacks.get_offset = fhanew_get_offset;
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softc->callbacks.no_offset = fhanew_no_offset;
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softc->callbacks.set_locktype = fhanew_set_locktype;
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softc->callbacks.fhe_stats_sysctl = fhenew_stats_sysctl;
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snprintf(softc->server_name, sizeof(softc->server_name),
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FHANEW_SERVER_NAME);
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softc->pool = &nfsrvd_pool;
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/*
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* Initialize the sysctl context list for the fha module.
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*/
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sysctl_ctx_init(&softc->sysctl_ctx);
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softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
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SYSCTL_STATIC_CHILDREN(_vfs_nfsd), OID_AUTO, "fha", CTLFLAG_RD,
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0, "fha node");
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if (softc->sysctl_tree == NULL) {
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printf("%s: unable to allocate sysctl tree\n", __func__);
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return;
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}
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fha_init(softc);
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}
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static void
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fhanew_uninit(void *foo)
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{
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struct fha_params *softc;
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softc = &fhanew_softc;
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fha_uninit(softc);
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}
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rpcproc_t
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fhanew_get_procnum(rpcproc_t procnum)
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{
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if (procnum > NFSV2PROC_STATFS)
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return (-1);
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return (newnfs_nfsv3_procid[procnum]);
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}
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int
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fhanew_realign(struct mbuf **mb, int malloc_flags)
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{
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return (newnfs_realign(mb, malloc_flags));
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}
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int
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fhanew_get_fh(fhandle_t *fh, int v3, struct mbuf **md, caddr_t *dpos)
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{
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struct nfsrv_descript lnd, *nd;
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uint32_t *tl;
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int error, len;
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error = 0;
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len = 0;
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nd = &lnd;
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nd->nd_md = *md;
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nd->nd_dpos = *dpos;
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if (v3) {
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NFSM_DISSECT_NONBLOCK(tl, uint32_t *, NFSX_UNSIGNED);
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if ((len = fxdr_unsigned(int, *tl)) <= 0 || len > NFSX_FHMAX) {
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error = EBADRPC;
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goto nfsmout;
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}
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} else {
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len = NFSX_V2FH;
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}
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if (len != 0) {
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NFSM_DISSECT_NONBLOCK(tl, uint32_t *, len);
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bcopy(tl, fh, len);
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} else
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bzero(fh, sizeof(*fh));
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nfsmout:
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*md = nd->nd_md;
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*dpos = nd->nd_dpos;
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return (error);
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}
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int
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fhanew_is_read(rpcproc_t procnum)
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{
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if (procnum == NFSPROC_READ)
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return (1);
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else
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return (0);
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}
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int
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fhanew_is_write(rpcproc_t procnum)
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{
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if (procnum == NFSPROC_WRITE)
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return (1);
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else
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return (0);
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}
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int
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fhanew_get_offset(struct mbuf **md, caddr_t *dpos, int v3,
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struct fha_info *info)
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{
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struct nfsrv_descript lnd, *nd;
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uint32_t *tl;
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int error;
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error = 0;
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nd = &lnd;
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nd->nd_md = *md;
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nd->nd_dpos = *dpos;
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if (v3) {
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NFSM_DISSECT_NONBLOCK(tl, uint32_t *, 2 * NFSX_UNSIGNED);
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info->offset = fxdr_hyper(tl);
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} else {
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NFSM_DISSECT_NONBLOCK(tl, uint32_t *, NFSX_UNSIGNED);
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info->offset = fxdr_unsigned(uint32_t, *tl);
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}
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nfsmout:
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*md = nd->nd_md;
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*dpos = nd->nd_dpos;
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return (error);
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}
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int
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fhanew_no_offset(rpcproc_t procnum)
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{
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if (procnum == NFSPROC_FSSTAT ||
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procnum == NFSPROC_FSINFO ||
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procnum == NFSPROC_PATHCONF ||
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procnum == NFSPROC_NOOP ||
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procnum == NFSPROC_NULL)
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return (1);
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else
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return (0);
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}
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void
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fhanew_set_locktype(rpcproc_t procnum, struct fha_info *info)
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{
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switch (procnum) {
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case NFSPROC_NULL:
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case NFSPROC_GETATTR:
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case NFSPROC_LOOKUP:
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case NFSPROC_ACCESS:
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case NFSPROC_READLINK:
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case NFSPROC_READ:
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case NFSPROC_READDIR:
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case NFSPROC_READDIRPLUS:
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case NFSPROC_WRITE:
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info->locktype = LK_SHARED;
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break;
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case NFSPROC_SETATTR:
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case NFSPROC_CREATE:
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case NFSPROC_MKDIR:
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case NFSPROC_SYMLINK:
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case NFSPROC_MKNOD:
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case NFSPROC_REMOVE:
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case NFSPROC_RMDIR:
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case NFSPROC_RENAME:
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case NFSPROC_LINK:
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case NFSPROC_FSSTAT:
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case NFSPROC_FSINFO:
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case NFSPROC_PATHCONF:
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case NFSPROC_COMMIT:
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case NFSPROC_NOOP:
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info->locktype = LK_EXCLUSIVE;
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break;
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}
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}
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static int
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fhenew_stats_sysctl(SYSCTL_HANDLER_ARGS)
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{
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return (fhe_stats_sysctl(oidp, arg1, arg2, req, &fhanew_softc));
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}
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SVCTHREAD *
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fhanew_assign(SVCTHREAD *this_thread, struct svc_req *req)
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{
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return (fha_assign(this_thread, req, &fhanew_softc));
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}
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