1/*- 2 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 3 * Copyright (c) 2013 Spectra Logic Corporation 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/sysproto.h> 33#include <sys/kernel.h> 34#include <sys/vnode.h> 35#include <sys/malloc.h> 36#include <sys/mount.h> 37#include <sys/mbuf.h> 38#include <sys/sysctl.h> 39 40#include <rpc/rpc.h> 41#include <nfs/xdr_subs.h> 42#include <nfs/nfsproto.h> 43#include <nfs/nfs_fha.h> 44#include <nfsserver/nfs.h> 45#include <nfsserver/nfsm_subs.h> 46#include <nfsserver/nfs_fha_old.h> 47 48static void fhaold_init(void *foo); 49static void fhaold_uninit(void *foo); 50rpcproc_t fhaold_get_procnum(rpcproc_t procnum); 51int fhaold_realign(struct mbuf **mb, int malloc_flags); 52int fhaold_get_fh(fhandle_t *fh, int v3, struct mbuf **md, caddr_t *dpos); 53int fhaold_is_read(rpcproc_t procnum); 54int fhaold_is_write(rpcproc_t procnum); 55int fhaold_get_offset(struct mbuf **md, caddr_t *dpos, int v3, 56 struct fha_info *info); 57int fhaold_no_offset(rpcproc_t procnum); 58void fhaold_set_locktype(rpcproc_t procnum, struct fha_info *info); 59static int fheold_stats_sysctl(SYSCTL_HANDLER_ARGS); 60 61static struct fha_params fhaold_softc; 62 63SYSCTL_DECL(_vfs_nfsrv); 64 65extern SVCPOOL *nfsrv_pool; 66 67SYSINIT(nfs_fhaold, SI_SUB_ROOT_CONF, SI_ORDER_ANY, fhaold_init, NULL); 68SYSUNINIT(nfs_fhaold, SI_SUB_ROOT_CONF, SI_ORDER_ANY, fhaold_uninit, NULL); 69 70static void 71fhaold_init(void *foo) 72{ 73 struct fha_params *softc; 74 75 softc = &fhaold_softc; 76 77 bzero(softc, sizeof(*softc)); 78 79 /* 80 * Setup the callbacks for this FHA personality. 81 */ 82 softc->callbacks.get_procnum = fhaold_get_procnum; 83 softc->callbacks.realign = fhaold_realign; 84 softc->callbacks.get_fh = fhaold_get_fh; 85 softc->callbacks.is_read = fhaold_is_read; 86 softc->callbacks.is_write = fhaold_is_write; 87 softc->callbacks.get_offset = fhaold_get_offset; 88 softc->callbacks.no_offset = fhaold_no_offset; 89 softc->callbacks.set_locktype = fhaold_set_locktype; 90 softc->callbacks.fhe_stats_sysctl = fheold_stats_sysctl; 91 92 snprintf(softc->server_name, sizeof(softc->server_name), 93 FHAOLD_SERVER_NAME); 94 95 softc->pool = &nfsrv_pool; 96 97 /* 98 * Initialize the sysctl context list for the fha module. 99 */ 100 sysctl_ctx_init(&softc->sysctl_ctx); 101 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 102 SYSCTL_STATIC_CHILDREN(_vfs_nfsrv), OID_AUTO, "fha", CTLFLAG_RD, 103 0, "fha node"); 104 if (softc->sysctl_tree == NULL) { 105 printf("%s: unable to allocate sysctl tree\n", __func__); 106 return; 107 } 108 fha_init(softc); 109} 110 111static void 112fhaold_uninit(void *foo) 113{ 114 struct fha_params *softc; 115 116 softc = &fhaold_softc; 117 118 fha_uninit(softc); 119} 120 121 122rpcproc_t 123fhaold_get_procnum(rpcproc_t procnum) 124{ 125 if (procnum > NFSV2PROC_STATFS) 126 return (-1); 127 128 return (nfsrv_nfsv3_procid[procnum]); 129} 130 131int 132fhaold_realign(struct mbuf **mb, int malloc_flags) 133{ 134 return (nfs_realign(mb, malloc_flags)); 135} 136 137int 138fhaold_get_fh(fhandle_t *fh, int v3, struct mbuf **md, caddr_t *dpos) 139{ 140 return (nfsm_srvmtofh_xx(fh, v3, md, dpos)); 141} 142 143int 144fhaold_is_read(rpcproc_t procnum) 145{ 146 if (procnum == NFSPROC_READ) 147 return (1); 148 else 149 return (0); 150} 151 152int 153fhaold_is_write(rpcproc_t procnum) 154{ 155 if (procnum == NFSPROC_WRITE) 156 return (1); 157 else 158 return (0); 159} 160 161int 162fhaold_get_offset(struct mbuf **md, caddr_t *dpos, int v3, 163 struct fha_info *info) 164{ 165 uint32_t *tl; 166 167 if (v3) { 168 tl = nfsm_dissect_xx_nonblock(2 * NFSX_UNSIGNED, md, dpos); 169 if (tl == NULL) 170 goto out; 171 info->offset = fxdr_hyper(tl); 172 } else { 173 tl = nfsm_dissect_xx_nonblock(NFSX_UNSIGNED, md, dpos); 174 if (tl == NULL) 175 goto out; 176 info->offset = fxdr_unsigned(uint32_t, *tl); 177 } 178 179 return (0); 180out: 181 return (-1); 182} 183 184int 185fhaold_no_offset(rpcproc_t procnum) 186{ 187 if (procnum == NFSPROC_FSSTAT || 188 procnum == NFSPROC_FSINFO || 189 procnum == NFSPROC_PATHCONF || 190 procnum == NFSPROC_NOOP || 191 procnum == NFSPROC_NULL) 192 return (1); 193 else 194 return (0); 195} 196 197void 198fhaold_set_locktype(rpcproc_t procnum, struct fha_info *info) 199{ 200 switch (procnum) { 201 case NFSPROC_NULL: 202 case NFSPROC_GETATTR: 203 case NFSPROC_LOOKUP: 204 case NFSPROC_ACCESS: 205 case NFSPROC_READLINK: 206 case NFSPROC_READ: 207 case NFSPROC_READDIR: 208 case NFSPROC_READDIRPLUS: 209 case NFSPROC_WRITE: 210 info->locktype = LK_SHARED; 211 break; 212 case NFSPROC_SETATTR: 213 case NFSPROC_CREATE: 214 case NFSPROC_MKDIR: 215 case NFSPROC_SYMLINK: 216 case NFSPROC_MKNOD: 217 case NFSPROC_REMOVE: 218 case NFSPROC_RMDIR: 219 case NFSPROC_RENAME: 220 case NFSPROC_LINK: 221 case NFSPROC_FSSTAT: 222 case NFSPROC_FSINFO: 223 case NFSPROC_PATHCONF: 224 case NFSPROC_COMMIT: 225 case NFSPROC_NOOP: 226 info->locktype = LK_EXCLUSIVE; 227 break; 228 } 229} 230 231static int 232fheold_stats_sysctl(SYSCTL_HANDLER_ARGS) 233{ 234 return (fhe_stats_sysctl(oidp, arg1, arg2, req, &fhaold_softc)); 235} 236 237SVCTHREAD * 238fhaold_assign(SVCTHREAD *this_thread, struct svc_req *req) 239{ 240 return (fha_assign(this_thread, req, &fhaold_softc)); 241} 242