nfs_nfsdkrpc.c revision 249596
1191783Srmacklem/*- 2191783Srmacklem * Copyright (c) 1989, 1993 3191783Srmacklem * The Regents of the University of California. All rights reserved. 4191783Srmacklem * 5191783Srmacklem * This code is derived from software contributed to Berkeley by 6191783Srmacklem * Rick Macklem at The University of Guelph. 7191783Srmacklem * 8191783Srmacklem * Redistribution and use in source and binary forms, with or without 9191783Srmacklem * modification, are permitted provided that the following conditions 10191783Srmacklem * are met: 11191783Srmacklem * 1. Redistributions of source code must retain the above copyright 12191783Srmacklem * notice, this list of conditions and the following disclaimer. 13191783Srmacklem * 2. Redistributions in binary form must reproduce the above copyright 14191783Srmacklem * notice, this list of conditions and the following disclaimer in the 15191783Srmacklem * documentation and/or other materials provided with the distribution. 16191783Srmacklem * 4. Neither the name of the University nor the names of its contributors 17191783Srmacklem * may be used to endorse or promote products derived from this software 18191783Srmacklem * without specific prior written permission. 19191783Srmacklem * 20191783Srmacklem * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21191783Srmacklem * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22191783Srmacklem * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23191783Srmacklem * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24191783Srmacklem * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25191783Srmacklem * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26191783Srmacklem * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27191783Srmacklem * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28191783Srmacklem * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29191783Srmacklem * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30191783Srmacklem * SUCH DAMAGE. 31191783Srmacklem * 32191783Srmacklem */ 33191783Srmacklem 34191783Srmacklem#include <sys/cdefs.h> 35191783Srmacklem__FBSDID("$FreeBSD: head/sys/fs/nfsserver/nfs_nfsdkrpc.c 249596 2013-04-17 22:42:43Z ken $"); 36191783Srmacklem 37191783Srmacklem#include "opt_inet6.h" 38191783Srmacklem#include "opt_kgssapi.h" 39191783Srmacklem 40191783Srmacklem#include <fs/nfs/nfsport.h> 41191783Srmacklem 42191783Srmacklem#include <rpc/rpc.h> 43191783Srmacklem#include <rpc/rpcsec_gss.h> 44191783Srmacklem 45249596Sken#include <nfs/nfs_fha.h> 46249592Sken#include <fs/nfsserver/nfs_fha_new.h> 47249592Sken 48193511Srwatson#include <security/mac/mac_framework.h> 49193511Srwatson 50191783SrmacklemNFSDLOCKMUTEX; 51241561SrmacklemNFSV4ROOTLOCKMUTEX; 52241561Srmacklemstruct nfsv4lock nfsd_suspend_lock; 53191783Srmacklem 54191783Srmacklem/* 55191783Srmacklem * Mapping of old NFS Version 2 RPC numbers to generic numbers. 56191783Srmacklem */ 57249592Skenint newnfs_nfsv3_procid[NFS_V3NPROCS] = { 58191783Srmacklem NFSPROC_NULL, 59191783Srmacklem NFSPROC_GETATTR, 60191783Srmacklem NFSPROC_SETATTR, 61191783Srmacklem NFSPROC_NOOP, 62191783Srmacklem NFSPROC_LOOKUP, 63191783Srmacklem NFSPROC_READLINK, 64191783Srmacklem NFSPROC_READ, 65191783Srmacklem NFSPROC_NOOP, 66191783Srmacklem NFSPROC_WRITE, 67191783Srmacklem NFSPROC_CREATE, 68191783Srmacklem NFSPROC_REMOVE, 69191783Srmacklem NFSPROC_RENAME, 70191783Srmacklem NFSPROC_LINK, 71191783Srmacklem NFSPROC_SYMLINK, 72191783Srmacklem NFSPROC_MKDIR, 73191783Srmacklem NFSPROC_RMDIR, 74191783Srmacklem NFSPROC_READDIR, 75191783Srmacklem NFSPROC_FSSTAT, 76191783Srmacklem NFSPROC_NOOP, 77191783Srmacklem NFSPROC_NOOP, 78191783Srmacklem NFSPROC_NOOP, 79191783Srmacklem NFSPROC_NOOP, 80191783Srmacklem}; 81191783Srmacklem 82191783Srmacklem 83221615SrmacklemSYSCTL_DECL(_vfs_nfsd); 84191783Srmacklem 85191783SrmacklemSVCPOOL *nfsrvd_pool; 86191783Srmacklem 87191783Srmacklemstatic int nfs_privport = 0; 88221615SrmacklemSYSCTL_INT(_vfs_nfsd, OID_AUTO, nfs_privport, CTLFLAG_RW, 89191783Srmacklem &nfs_privport, 0, 90191783Srmacklem "Only allow clients using a privileged port for NFSv2 and 3"); 91191783Srmacklem 92192782Srmacklemstatic int nfs_minvers = NFS_VER2; 93221615SrmacklemSYSCTL_INT(_vfs_nfsd, OID_AUTO, server_min_nfsvers, CTLFLAG_RW, 94192782Srmacklem &nfs_minvers, 0, "The lowest version of NFS handled by the server"); 95192782Srmacklem 96192782Srmacklemstatic int nfs_maxvers = NFS_VER4; 97221615SrmacklemSYSCTL_INT(_vfs_nfsd, OID_AUTO, server_max_nfsvers, CTLFLAG_RW, 98192782Srmacklem &nfs_maxvers, 0, "The highest version of NFS handled by the server"); 99192782Srmacklem 100191783Srmacklemstatic int nfs_proc(struct nfsrv_descript *, u_int32_t, struct socket *, 101191783Srmacklem u_int64_t, struct nfsrvcache **); 102191783Srmacklem 103191783Srmacklemextern u_long sb_max_adj; 104191783Srmacklemextern int newnfs_numnfsd; 105217432Srmacklemextern struct proc *nfsd_master_proc; 106191783Srmacklem 107191783Srmacklem/* 108191783Srmacklem * NFS server system calls 109191783Srmacklem */ 110191783Srmacklem 111191783Srmacklemstatic void 112191783Srmacklemnfssvc_program(struct svc_req *rqst, SVCXPRT *xprt) 113191783Srmacklem{ 114191783Srmacklem struct nfsrv_descript nd; 115191783Srmacklem struct nfsrvcache *rp = NULL; 116192121Srmacklem int cacherep, credflavor; 117191783Srmacklem 118191783Srmacklem memset(&nd, 0, sizeof(nd)); 119191783Srmacklem if (rqst->rq_vers == NFS_VER2) { 120191783Srmacklem if (rqst->rq_proc > NFSV2PROC_STATFS) { 121191783Srmacklem svcerr_noproc(rqst); 122191783Srmacklem svc_freereq(rqst); 123224086Szack goto out; 124191783Srmacklem } 125191783Srmacklem nd.nd_procnum = newnfs_nfsv3_procid[rqst->rq_proc]; 126191783Srmacklem nd.nd_flag = ND_NFSV2; 127191783Srmacklem } else if (rqst->rq_vers == NFS_VER3) { 128191783Srmacklem if (rqst->rq_proc >= NFS_V3NPROCS) { 129191783Srmacklem svcerr_noproc(rqst); 130191783Srmacklem svc_freereq(rqst); 131224086Szack goto out; 132191783Srmacklem } 133191783Srmacklem nd.nd_procnum = rqst->rq_proc; 134191783Srmacklem nd.nd_flag = ND_NFSV3; 135191783Srmacklem } else { 136191783Srmacklem if (rqst->rq_proc != NFSPROC_NULL && 137191783Srmacklem rqst->rq_proc != NFSV4PROC_COMPOUND) { 138191783Srmacklem svcerr_noproc(rqst); 139191783Srmacklem svc_freereq(rqst); 140224086Szack goto out; 141191783Srmacklem } 142191783Srmacklem nd.nd_procnum = rqst->rq_proc; 143191783Srmacklem nd.nd_flag = ND_NFSV4; 144191783Srmacklem } 145191783Srmacklem 146191783Srmacklem /* 147191783Srmacklem * Note: we want rq_addr, not svc_getrpccaller for nd_nam2 - 148191783Srmacklem * NFS_SRVMAXDATA uses a NULL value for nd_nam2 to detect TCP 149191783Srmacklem * mounts. 150191783Srmacklem */ 151191783Srmacklem nd.nd_mrep = rqst->rq_args; 152191783Srmacklem rqst->rq_args = NULL; 153249592Sken newnfs_realign(&nd.nd_mrep, M_WAITOK); 154191783Srmacklem nd.nd_md = nd.nd_mrep; 155191783Srmacklem nd.nd_dpos = mtod(nd.nd_md, caddr_t); 156191783Srmacklem nd.nd_nam = svc_getrpccaller(rqst); 157191783Srmacklem nd.nd_nam2 = rqst->rq_addr; 158191783Srmacklem nd.nd_mreq = NULL; 159191783Srmacklem nd.nd_cred = NULL; 160191783Srmacklem 161191783Srmacklem if (nfs_privport && (nd.nd_flag & ND_NFSV4) == 0) { 162191783Srmacklem /* Check if source port is privileged */ 163191783Srmacklem u_short port; 164191783Srmacklem struct sockaddr *nam = nd.nd_nam; 165191783Srmacklem struct sockaddr_in *sin; 166191783Srmacklem 167191783Srmacklem sin = (struct sockaddr_in *)nam; 168191783Srmacklem /* 169191783Srmacklem * INET/INET6 - same code: 170191783Srmacklem * sin_port and sin6_port are at same offset 171191783Srmacklem */ 172191783Srmacklem port = ntohs(sin->sin_port); 173191783Srmacklem if (port >= IPPORT_RESERVED && 174191783Srmacklem nd.nd_procnum != NFSPROC_NULL) { 175191783Srmacklem#ifdef INET6 176191783Srmacklem char b6[INET6_ADDRSTRLEN]; 177191783Srmacklem#if defined(KLD_MODULE) 178191783Srmacklem /* Do not use ip6_sprintf: the nfs module should work without INET6. */ 179191783Srmacklem#define ip6_sprintf(buf, a) \ 180191783Srmacklem (sprintf((buf), "%x:%x:%x:%x:%x:%x:%x:%x", \ 181191783Srmacklem (a)->s6_addr16[0], (a)->s6_addr16[1], \ 182191783Srmacklem (a)->s6_addr16[2], (a)->s6_addr16[3], \ 183191783Srmacklem (a)->s6_addr16[4], (a)->s6_addr16[5], \ 184191783Srmacklem (a)->s6_addr16[6], (a)->s6_addr16[7]), \ 185191783Srmacklem (buf)) 186191783Srmacklem#endif 187191783Srmacklem#endif 188191783Srmacklem printf("NFS request from unprivileged port (%s:%d)\n", 189191783Srmacklem#ifdef INET6 190191783Srmacklem sin->sin_family == AF_INET6 ? 191191783Srmacklem ip6_sprintf(b6, &satosin6(sin)->sin6_addr) : 192191783Srmacklem#if defined(KLD_MODULE) 193191783Srmacklem#undef ip6_sprintf 194191783Srmacklem#endif 195191783Srmacklem#endif 196191783Srmacklem inet_ntoa(sin->sin_addr), port); 197191783Srmacklem svcerr_weakauth(rqst); 198191783Srmacklem svc_freereq(rqst); 199191783Srmacklem m_freem(nd.nd_mrep); 200224086Szack goto out; 201191783Srmacklem } 202191783Srmacklem } 203191783Srmacklem 204191783Srmacklem if (nd.nd_procnum != NFSPROC_NULL) { 205192121Srmacklem if (!svc_getcred(rqst, &nd.nd_cred, &credflavor)) { 206191783Srmacklem svcerr_weakauth(rqst); 207191783Srmacklem svc_freereq(rqst); 208191783Srmacklem m_freem(nd.nd_mrep); 209224086Szack goto out; 210191783Srmacklem } 211192121Srmacklem 212192121Srmacklem /* Set the flag based on credflavor */ 213192121Srmacklem if (credflavor == RPCSEC_GSS_KRB5) { 214192121Srmacklem nd.nd_flag |= ND_GSS; 215192121Srmacklem } else if (credflavor == RPCSEC_GSS_KRB5I) { 216192121Srmacklem nd.nd_flag |= (ND_GSS | ND_GSSINTEGRITY); 217192121Srmacklem } else if (credflavor == RPCSEC_GSS_KRB5P) { 218192121Srmacklem nd.nd_flag |= (ND_GSS | ND_GSSPRIVACY); 219192121Srmacklem } else if (credflavor != AUTH_SYS) { 220192121Srmacklem svcerr_weakauth(rqst); 221192121Srmacklem svc_freereq(rqst); 222192121Srmacklem m_freem(nd.nd_mrep); 223224086Szack goto out; 224192121Srmacklem } 225192121Srmacklem 226191783Srmacklem#ifdef MAC 227191783Srmacklem mac_cred_associate_nfsd(nd.nd_cred); 228191783Srmacklem#endif 229241561Srmacklem /* 230241561Srmacklem * Get a refcnt (shared lock) on nfsd_suspend_lock. 231241561Srmacklem * NFSSVC_SUSPENDNFSD will take an exclusive lock on 232241561Srmacklem * nfsd_suspend_lock to suspend these threads. 233241561Srmacklem * This must be done here, before the check of 234241561Srmacklem * nfsv4root exports by nfsvno_v4rootexport(). 235241561Srmacklem */ 236241561Srmacklem NFSLOCKV4ROOTMUTEX(); 237241561Srmacklem nfsv4_getref(&nfsd_suspend_lock, NULL, NFSV4ROOTLOCKMUTEXPTR, 238241561Srmacklem NULL); 239241561Srmacklem NFSUNLOCKV4ROOTMUTEX(); 240241561Srmacklem 241192780Srmacklem if ((nd.nd_flag & ND_NFSV4) != 0) { 242191783Srmacklem nd.nd_repstat = nfsvno_v4rootexport(&nd); 243192780Srmacklem if (nd.nd_repstat != 0) { 244241561Srmacklem NFSLOCKV4ROOTMUTEX(); 245241561Srmacklem nfsv4_relref(&nfsd_suspend_lock); 246241561Srmacklem NFSUNLOCKV4ROOTMUTEX(); 247192780Srmacklem svcerr_weakauth(rqst); 248192780Srmacklem svc_freereq(rqst); 249192780Srmacklem m_freem(nd.nd_mrep); 250224086Szack goto out; 251192780Srmacklem } 252192780Srmacklem } 253191783Srmacklem 254191783Srmacklem cacherep = nfs_proc(&nd, rqst->rq_xid, xprt->xp_socket, 255191783Srmacklem xprt->xp_sockref, &rp); 256241561Srmacklem NFSLOCKV4ROOTMUTEX(); 257241561Srmacklem nfsv4_relref(&nfsd_suspend_lock); 258241561Srmacklem NFSUNLOCKV4ROOTMUTEX(); 259191783Srmacklem } else { 260191783Srmacklem NFSMGET(nd.nd_mreq); 261191783Srmacklem nd.nd_mreq->m_len = 0; 262191783Srmacklem cacherep = RC_REPLY; 263191783Srmacklem } 264191783Srmacklem if (nd.nd_mrep != NULL) 265191783Srmacklem m_freem(nd.nd_mrep); 266191783Srmacklem 267191783Srmacklem if (nd.nd_cred != NULL) 268191783Srmacklem crfree(nd.nd_cred); 269191783Srmacklem 270191783Srmacklem if (cacherep == RC_DROPIT) { 271191783Srmacklem if (nd.nd_mreq != NULL) 272191783Srmacklem m_freem(nd.nd_mreq); 273191783Srmacklem svc_freereq(rqst); 274224086Szack goto out; 275191783Srmacklem } 276191783Srmacklem 277191783Srmacklem if (nd.nd_mreq == NULL) { 278191783Srmacklem svcerr_decode(rqst); 279191783Srmacklem svc_freereq(rqst); 280224086Szack goto out; 281191783Srmacklem } 282191783Srmacklem 283191783Srmacklem if (nd.nd_repstat & NFSERR_AUTHERR) { 284191783Srmacklem svcerr_auth(rqst, nd.nd_repstat & ~NFSERR_AUTHERR); 285191783Srmacklem if (nd.nd_mreq != NULL) 286191783Srmacklem m_freem(nd.nd_mreq); 287191783Srmacklem } else if (!svc_sendreply_mbuf(rqst, nd.nd_mreq)) { 288191783Srmacklem svcerr_systemerr(rqst); 289191783Srmacklem } 290191783Srmacklem if (rp != NULL) 291191783Srmacklem nfsrvd_sentcache(rp, xprt->xp_socket, 0); 292191783Srmacklem svc_freereq(rqst); 293224086Szack 294224086Szackout: 295224086Szack NFSEXITCODE(0); 296191783Srmacklem} 297191783Srmacklem 298191783Srmacklem/* 299191783Srmacklem * Check the cache and, optionally, do the RPC. 300191783Srmacklem * Return the appropriate cache response. 301191783Srmacklem */ 302191783Srmacklemstatic int 303191783Srmacklemnfs_proc(struct nfsrv_descript *nd, u_int32_t xid, struct socket *so, 304191783Srmacklem u_int64_t sockref, struct nfsrvcache **rpp) 305191783Srmacklem{ 306191783Srmacklem struct thread *td = curthread; 307191783Srmacklem int cacherep = RC_DOIT, isdgram; 308191783Srmacklem 309191783Srmacklem *rpp = NULL; 310191783Srmacklem if (nd->nd_nam2 == NULL) { 311191783Srmacklem nd->nd_flag |= ND_STREAMSOCK; 312191783Srmacklem isdgram = 0; 313191783Srmacklem } else { 314191783Srmacklem isdgram = 1; 315191783Srmacklem } 316191783Srmacklem 317191783Srmacklem /* 318192780Srmacklem * Two cases: 319191783Srmacklem * 1 - For NFSv2 over UDP, if we are near our malloc/mget 320191783Srmacklem * limit, just drop the request. There is no 321191783Srmacklem * NFSERR_RESOURCE or NFSERR_DELAY for NFSv2 and the 322191783Srmacklem * client will timeout/retry over UDP in a little while. 323192780Srmacklem * 2 - nd_repstat == 0 && nd_mreq == NULL, which 324191783Srmacklem * means a normal nfs rpc, so check the cache 325191783Srmacklem */ 326191783Srmacklem if ((nd->nd_flag & ND_NFSV2) && nd->nd_nam2 != NULL && 327191783Srmacklem nfsrv_mallocmget_limit()) { 328191783Srmacklem cacherep = RC_DROPIT; 329191783Srmacklem } else { 330191783Srmacklem /* 331191783Srmacklem * For NFSv3, play it safe and assume that the client is 332191783Srmacklem * doing retries on the same TCP connection. 333191783Srmacklem */ 334191783Srmacklem if ((nd->nd_flag & (ND_NFSV4 | ND_STREAMSOCK)) == 335191783Srmacklem ND_STREAMSOCK) 336191783Srmacklem nd->nd_flag |= ND_SAMETCPCONN; 337191783Srmacklem nd->nd_retxid = xid; 338191783Srmacklem nd->nd_tcpconntime = NFSD_MONOSEC; 339191783Srmacklem nd->nd_sockref = sockref; 340191783Srmacklem cacherep = nfsrvd_getcache(nd, so); 341191783Srmacklem } 342191783Srmacklem 343191783Srmacklem /* 344191783Srmacklem * Handle the request. There are three cases. 345191783Srmacklem * RC_DOIT - do the RPC 346191783Srmacklem * RC_REPLY - return the reply already created 347191783Srmacklem * RC_DROPIT - just throw the request away 348191783Srmacklem */ 349191783Srmacklem if (cacherep == RC_DOIT) { 350191783Srmacklem nfsrvd_dorpc(nd, isdgram, td); 351191783Srmacklem if (nd->nd_repstat == NFSERR_DONTREPLY) 352191783Srmacklem cacherep = RC_DROPIT; 353191783Srmacklem else 354191783Srmacklem cacherep = RC_REPLY; 355191783Srmacklem *rpp = nfsrvd_updatecache(nd, so); 356191783Srmacklem } 357224086Szack 358224086Szack NFSEXITCODE2(0, nd); 359191783Srmacklem return (cacherep); 360191783Srmacklem} 361191783Srmacklem 362191783Srmacklem/* 363191783Srmacklem * Adds a socket to the list for servicing by nfsds. 364191783Srmacklem */ 365191783Srmacklemint 366191783Srmacklemnfsrvd_addsock(struct file *fp) 367191783Srmacklem{ 368191783Srmacklem int siz; 369191783Srmacklem struct socket *so; 370224086Szack int error = 0; 371191783Srmacklem SVCXPRT *xprt; 372191783Srmacklem static u_int64_t sockref = 0; 373191783Srmacklem 374191783Srmacklem so = fp->f_data; 375191783Srmacklem 376191783Srmacklem siz = sb_max_adj; 377191783Srmacklem error = soreserve(so, siz, siz); 378224086Szack if (error) 379224086Szack goto out; 380191783Srmacklem 381191783Srmacklem /* 382191783Srmacklem * Steal the socket from userland so that it doesn't close 383191783Srmacklem * unexpectedly. 384191783Srmacklem */ 385191783Srmacklem if (so->so_type == SOCK_DGRAM) 386191783Srmacklem xprt = svc_dg_create(nfsrvd_pool, so, 0, 0); 387191783Srmacklem else 388191783Srmacklem xprt = svc_vc_create(nfsrvd_pool, so, 0, 0); 389191783Srmacklem if (xprt) { 390191783Srmacklem fp->f_ops = &badfileops; 391191783Srmacklem fp->f_data = NULL; 392191783Srmacklem xprt->xp_sockref = ++sockref; 393192782Srmacklem if (nfs_minvers == NFS_VER2) 394192782Srmacklem svc_reg(xprt, NFS_PROG, NFS_VER2, nfssvc_program, 395192782Srmacklem NULL); 396192782Srmacklem if (nfs_minvers <= NFS_VER3 && nfs_maxvers >= NFS_VER3) 397192782Srmacklem svc_reg(xprt, NFS_PROG, NFS_VER3, nfssvc_program, 398192782Srmacklem NULL); 399192782Srmacklem if (nfs_maxvers >= NFS_VER4) 400192782Srmacklem svc_reg(xprt, NFS_PROG, NFS_VER4, nfssvc_program, 401192782Srmacklem NULL); 402194408Srmacklem SVC_RELEASE(xprt); 403191783Srmacklem } 404191783Srmacklem 405224086Szackout: 406224086Szack NFSEXITCODE(error); 407224086Szack return (error); 408191783Srmacklem} 409191783Srmacklem 410191783Srmacklem/* 411191783Srmacklem * Called by nfssvc() for nfsds. Just loops around servicing rpc requests 412191783Srmacklem * until it is killed by a signal. 413191783Srmacklem */ 414191783Srmacklemint 415191783Srmacklemnfsrvd_nfsd(struct thread *td, struct nfsd_nfsd_args *args) 416191783Srmacklem{ 417192017Srmacklem char principal[MAXHOSTNAMELEN + 5]; 418224086Szack int error = 0; 419191783Srmacklem bool_t ret2, ret3, ret4; 420191783Srmacklem 421192017Srmacklem error = copyinstr(args->principal, principal, sizeof (principal), 422192017Srmacklem NULL); 423192017Srmacklem if (error) 424224086Szack goto out; 425191783Srmacklem 426191783Srmacklem /* 427191783Srmacklem * Only the first nfsd actually does any work. The RPC code 428191783Srmacklem * adds threads to it as needed. Any extra processes offered 429191783Srmacklem * by nfsd just exit. If nfsd is new enough, it will call us 430191783Srmacklem * once with a structure that specifies how many threads to 431191783Srmacklem * use. 432191783Srmacklem */ 433191783Srmacklem NFSD_LOCK(); 434191783Srmacklem if (newnfs_numnfsd == 0) { 435191783Srmacklem newnfs_numnfsd++; 436191783Srmacklem 437191783Srmacklem NFSD_UNLOCK(); 438191783Srmacklem 439192017Srmacklem /* An empty string implies AUTH_SYS only. */ 440192017Srmacklem if (principal[0] != '\0') { 441223309Srmacklem ret2 = rpc_gss_set_svc_name_call(principal, 442223309Srmacklem "kerberosv5", GSS_C_INDEFINITE, NFS_PROG, NFS_VER2); 443223309Srmacklem ret3 = rpc_gss_set_svc_name_call(principal, 444223309Srmacklem "kerberosv5", GSS_C_INDEFINITE, NFS_PROG, NFS_VER3); 445223309Srmacklem ret4 = rpc_gss_set_svc_name_call(principal, 446223309Srmacklem "kerberosv5", GSS_C_INDEFINITE, NFS_PROG, NFS_VER4); 447191783Srmacklem 448223309Srmacklem if (!ret2 || !ret3 || !ret4) 449223309Srmacklem printf("nfsd: can't register svc name\n"); 450191783Srmacklem } 451191783Srmacklem 452192017Srmacklem nfsrvd_pool->sp_minthreads = args->minthreads; 453192017Srmacklem nfsrvd_pool->sp_maxthreads = args->maxthreads; 454191783Srmacklem 455191783Srmacklem svc_run(nfsrvd_pool); 456191783Srmacklem 457192017Srmacklem if (principal[0] != '\0') { 458223309Srmacklem rpc_gss_clear_svc_name_call(NFS_PROG, NFS_VER2); 459223309Srmacklem rpc_gss_clear_svc_name_call(NFS_PROG, NFS_VER3); 460223309Srmacklem rpc_gss_clear_svc_name_call(NFS_PROG, NFS_VER4); 461192017Srmacklem } 462191783Srmacklem 463191783Srmacklem NFSD_LOCK(); 464191783Srmacklem newnfs_numnfsd--; 465191783Srmacklem nfsrvd_init(1); 466191783Srmacklem } 467191783Srmacklem NFSD_UNLOCK(); 468191783Srmacklem 469224086Szackout: 470224086Szack NFSEXITCODE(error); 471224086Szack return (error); 472191783Srmacklem} 473191783Srmacklem 474191783Srmacklem/* 475191783Srmacklem * Initialize the data structures for the server. 476191783Srmacklem * Handshake with any new nfsds starting up to avoid any chance of 477191783Srmacklem * corruption. 478191783Srmacklem */ 479191783Srmacklemvoid 480191783Srmacklemnfsrvd_init(int terminating) 481191783Srmacklem{ 482191783Srmacklem 483191783Srmacklem NFSD_LOCK_ASSERT(); 484191783Srmacklem 485191783Srmacklem if (terminating) { 486217432Srmacklem nfsd_master_proc = NULL; 487191783Srmacklem NFSD_UNLOCK(); 488191783Srmacklem svcpool_destroy(nfsrvd_pool); 489191783Srmacklem nfsrvd_pool = NULL; 490191783Srmacklem NFSD_LOCK(); 491191783Srmacklem } 492191783Srmacklem 493191783Srmacklem NFSD_UNLOCK(); 494191783Srmacklem 495221615Srmacklem nfsrvd_pool = svcpool_create("nfsd", SYSCTL_STATIC_CHILDREN(_vfs_nfsd)); 496191783Srmacklem nfsrvd_pool->sp_rcache = NULL; 497249592Sken nfsrvd_pool->sp_assign = fhanew_assign; 498249592Sken nfsrvd_pool->sp_done = fha_nd_complete; 499191783Srmacklem 500191783Srmacklem NFSD_LOCK(); 501191783Srmacklem} 502191783Srmacklem 503