d63027b668
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
279 lines
6.5 KiB
C
279 lines
6.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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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(uint64_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, "NFS File Handle Affinity (FHA)");
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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(uint64_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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uint8_t *buf;
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uint64_t t;
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int error, len, i;
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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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t = 0;
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if (len != 0) {
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NFSM_DISSECT_NONBLOCK(buf, uint8_t *, len);
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for (i = 0; i < len; i++)
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t ^= ((uint64_t)buf[i] << (i & 7) * 8);
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}
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*fh = t;
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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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