nfs_nfsdkrpc.c

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    1 /*-
    2  * Copyright (c) 1989, 1993
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * This code is derived from software contributed to Berkeley by
    6  * Rick Macklem at The University of Guelph.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  * 4. Neither the name of the University nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  */
   33 
   34 #include <sys/cdefs.h>
   35 __FBSDID("$FreeBSD: releng/11.0/sys/fs/nfsserver/nfs_nfsdkrpc.c 299203 2016-05-06 23:40:37Z pfg $");
   36 
   37 #include "opt_inet6.h"
   38 #include "opt_kgssapi.h"
   39 
   40 #include <fs/nfs/nfsport.h>
   41 
   42 #include <rpc/rpc.h>
   43 #include <rpc/rpcsec_gss.h>
   44 
   45 #include <nfs/nfs_fha.h>
   46 #include <fs/nfsserver/nfs_fha_new.h>
   47 
   48 #include <security/mac/mac_framework.h>
   49 
   50 NFSDLOCKMUTEX;
   51 NFSV4ROOTLOCKMUTEX;
   52 struct nfsv4lock nfsd_suspend_lock;
   53 
   54 /*
   55  * Mapping of old NFS Version 2 RPC numbers to generic numbers.
   56  */
   57 int newnfs_nfsv3_procid[NFS_V3NPROCS] = {
   58         NFSPROC_NULL,
   59         NFSPROC_GETATTR,
   60         NFSPROC_SETATTR,
   61         NFSPROC_NOOP,
   62         NFSPROC_LOOKUP,
   63         NFSPROC_READLINK,
   64         NFSPROC_READ,
   65         NFSPROC_NOOP,
   66         NFSPROC_WRITE,
   67         NFSPROC_CREATE,
   68         NFSPROC_REMOVE,
   69         NFSPROC_RENAME,
   70         NFSPROC_LINK,
   71         NFSPROC_SYMLINK,
   72         NFSPROC_MKDIR,
   73         NFSPROC_RMDIR,
   74         NFSPROC_READDIR,
   75         NFSPROC_FSSTAT,
   76         NFSPROC_NOOP,
   77         NFSPROC_NOOP,
   78         NFSPROC_NOOP,
   79         NFSPROC_NOOP,
   80 };
   81 
   82 
   83 SYSCTL_DECL(_vfs_nfsd);
   84 
   85 SVCPOOL         *nfsrvd_pool;
   86 
   87 static int      nfs_privport = 0;
   88 SYSCTL_INT(_vfs_nfsd, OID_AUTO, nfs_privport, CTLFLAG_RWTUN,
   89     &nfs_privport, 0,
   90     "Only allow clients using a privileged port for NFSv2 and 3");
   91 
   92 static int      nfs_minvers = NFS_VER2;
   93 SYSCTL_INT(_vfs_nfsd, OID_AUTO, server_min_nfsvers, CTLFLAG_RWTUN,
   94     &nfs_minvers, 0, "The lowest version of NFS handled by the server");
   95 
   96 static int      nfs_maxvers = NFS_VER4;
   97 SYSCTL_INT(_vfs_nfsd, OID_AUTO, server_max_nfsvers, CTLFLAG_RWTUN,
   98     &nfs_maxvers, 0, "The highest version of NFS handled by the server");
   99 
  100 static int nfs_proc(struct nfsrv_descript *, u_int32_t, SVCXPRT *xprt,
  101     struct nfsrvcache **);
  102 
  103 extern u_long sb_max_adj;
  104 extern int newnfs_numnfsd;
  105 extern struct proc *nfsd_master_proc;
  106 
  107 /*
  108  * NFS server system calls
  109  */
  110 
  111 static void
  112 nfssvc_program(struct svc_req *rqst, SVCXPRT *xprt)
  113 {
  114         struct nfsrv_descript nd;
  115         struct nfsrvcache *rp = NULL;
  116         int cacherep, credflavor;
  117 
  118         memset(&nd, 0, sizeof(nd));
  119         if (rqst->rq_vers == NFS_VER2) {
  120                 if (rqst->rq_proc > NFSV2PROC_STATFS ||
  121                     newnfs_nfsv3_procid[rqst->rq_proc] == NFSPROC_NOOP) {
  122                         svcerr_noproc(rqst);
  123                         svc_freereq(rqst);
  124                         goto out;
  125                 }
  126                 nd.nd_procnum = newnfs_nfsv3_procid[rqst->rq_proc];
  127                 nd.nd_flag = ND_NFSV2;
  128         } else if (rqst->rq_vers == NFS_VER3) {
  129                 if (rqst->rq_proc >= NFS_V3NPROCS) {
  130                         svcerr_noproc(rqst);
  131                         svc_freereq(rqst);
  132                         goto out;
  133                 }
  134                 nd.nd_procnum = rqst->rq_proc;
  135                 nd.nd_flag = ND_NFSV3;
  136         } else {
  137                 if (rqst->rq_proc != NFSPROC_NULL &&
  138                     rqst->rq_proc != NFSV4PROC_COMPOUND) {
  139                         svcerr_noproc(rqst);
  140                         svc_freereq(rqst);
  141                         goto out;
  142                 }
  143                 nd.nd_procnum = rqst->rq_proc;
  144                 nd.nd_flag = ND_NFSV4;
  145         }
  146 
  147         /*
  148          * Note: we want rq_addr, not svc_getrpccaller for nd_nam2 -
  149          * NFS_SRVMAXDATA uses a NULL value for nd_nam2 to detect TCP
  150          * mounts.
  151          */
  152         nd.nd_mrep = rqst->rq_args;
  153         rqst->rq_args = NULL;
  154         newnfs_realign(&nd.nd_mrep, M_WAITOK);
  155         nd.nd_md = nd.nd_mrep;
  156         nd.nd_dpos = mtod(nd.nd_md, caddr_t);
  157         nd.nd_nam = svc_getrpccaller(rqst);
  158         nd.nd_nam2 = rqst->rq_addr;
  159         nd.nd_mreq = NULL;
  160         nd.nd_cred = NULL;
  161 
  162         if (nfs_privport && (nd.nd_flag & ND_NFSV4) == 0) {
  163                 /* Check if source port is privileged */
  164                 u_short port;
  165                 struct sockaddr *nam = nd.nd_nam;
  166                 struct sockaddr_in *sin;
  167 
  168                 sin = (struct sockaddr_in *)nam;
  169                 /*
  170                  * INET/INET6 - same code:
  171                  *    sin_port and sin6_port are at same offset
  172                  */
  173                 port = ntohs(sin->sin_port);
  174                 if (port >= IPPORT_RESERVED &&
  175                     nd.nd_procnum != NFSPROC_NULL) {
  176 #ifdef INET6
  177                         char b6[INET6_ADDRSTRLEN];
  178 #if defined(KLD_MODULE)
  179                         /* Do not use ip6_sprintf: the nfs module should work without INET6. */
  180 #define ip6_sprintf(buf, a)                                             \
  181                         (sprintf((buf), "%x:%x:%x:%x:%x:%x:%x:%x",      \
  182                             (a)->s6_addr16[0], (a)->s6_addr16[1],       \
  183                             (a)->s6_addr16[2], (a)->s6_addr16[3],       \
  184                             (a)->s6_addr16[4], (a)->s6_addr16[5],       \
  185                             (a)->s6_addr16[6], (a)->s6_addr16[7]),      \
  186                             (buf))
  187 #endif
  188 #endif
  189                         printf("NFS request from unprivileged port (%s:%d)\n",
  190 #ifdef INET6
  191                             sin->sin_family == AF_INET6 ?
  192                             ip6_sprintf(b6, &satosin6(sin)->sin6_addr) :
  193 #if defined(KLD_MODULE)
  194 #undef ip6_sprintf
  195 #endif
  196 #endif
  197                             inet_ntoa(sin->sin_addr), port);
  198                         svcerr_weakauth(rqst);
  199                         svc_freereq(rqst);
  200                         m_freem(nd.nd_mrep);
  201                         goto out;
  202                 }
  203         }
  204 
  205         if (nd.nd_procnum != NFSPROC_NULL) {
  206                 if (!svc_getcred(rqst, &nd.nd_cred, &credflavor)) {
  207                         svcerr_weakauth(rqst);
  208                         svc_freereq(rqst);
  209                         m_freem(nd.nd_mrep);
  210                         goto out;
  211                 }
  212 
  213                 /* Set the flag based on credflavor */
  214                 if (credflavor == RPCSEC_GSS_KRB5) {
  215                         nd.nd_flag |= ND_GSS;
  216                 } else if (credflavor == RPCSEC_GSS_KRB5I) {
  217                         nd.nd_flag |= (ND_GSS | ND_GSSINTEGRITY);
  218                 } else if (credflavor == RPCSEC_GSS_KRB5P) {
  219                         nd.nd_flag |= (ND_GSS | ND_GSSPRIVACY);
  220                 } else if (credflavor != AUTH_SYS) {
  221                         svcerr_weakauth(rqst);
  222                         svc_freereq(rqst);
  223                         m_freem(nd.nd_mrep);
  224                         goto out;
  225                 }
  226 
  227 #ifdef MAC
  228                 mac_cred_associate_nfsd(nd.nd_cred);
  229 #endif
  230                 /*
  231                  * Get a refcnt (shared lock) on nfsd_suspend_lock.
  232                  * NFSSVC_SUSPENDNFSD will take an exclusive lock on
  233                  * nfsd_suspend_lock to suspend these threads.
  234                  * The call to nfsv4_lock() that precedes nfsv4_getref()
  235                  * ensures that the acquisition of the exclusive lock
  236                  * takes priority over acquisition of the shared lock by
  237                  * waiting for any exclusive lock request to complete.
  238                  * This must be done here, before the check of
  239                  * nfsv4root exports by nfsvno_v4rootexport().
  240                  */
  241                 NFSLOCKV4ROOTMUTEX();
  242                 nfsv4_lock(&nfsd_suspend_lock, 0, NULL, NFSV4ROOTLOCKMUTEXPTR,
  243                     NULL);
  244                 nfsv4_getref(&nfsd_suspend_lock, NULL, NFSV4ROOTLOCKMUTEXPTR,
  245                     NULL);
  246                 NFSUNLOCKV4ROOTMUTEX();
  247 
  248                 if ((nd.nd_flag & ND_NFSV4) != 0) {
  249                         nd.nd_repstat = nfsvno_v4rootexport(&nd);
  250                         if (nd.nd_repstat != 0) {
  251                                 NFSLOCKV4ROOTMUTEX();
  252                                 nfsv4_relref(&nfsd_suspend_lock);
  253                                 NFSUNLOCKV4ROOTMUTEX();
  254                                 svcerr_weakauth(rqst);
  255                                 svc_freereq(rqst);
  256                                 m_freem(nd.nd_mrep);
  257                                 goto out;
  258                         }
  259                 }
  260 
  261                 cacherep = nfs_proc(&nd, rqst->rq_xid, xprt, &rp);
  262                 NFSLOCKV4ROOTMUTEX();
  263                 nfsv4_relref(&nfsd_suspend_lock);
  264                 NFSUNLOCKV4ROOTMUTEX();
  265         } else {
  266                 NFSMGET(nd.nd_mreq);
  267                 nd.nd_mreq->m_len = 0;
  268                 cacherep = RC_REPLY;
  269         }
  270         if (nd.nd_mrep != NULL)
  271                 m_freem(nd.nd_mrep);
  272 
  273         if (nd.nd_cred != NULL)
  274                 crfree(nd.nd_cred);
  275 
  276         if (cacherep == RC_DROPIT) {
  277                 if (nd.nd_mreq != NULL)
  278                         m_freem(nd.nd_mreq);
  279                 svc_freereq(rqst);
  280                 goto out;
  281         }
  282 
  283         if (nd.nd_mreq == NULL) {
  284                 svcerr_decode(rqst);
  285                 svc_freereq(rqst);
  286                 goto out;
  287         }
  288 
  289         if (nd.nd_repstat & NFSERR_AUTHERR) {
  290                 svcerr_auth(rqst, nd.nd_repstat & ~NFSERR_AUTHERR);
  291                 if (nd.nd_mreq != NULL)
  292                         m_freem(nd.nd_mreq);
  293         } else if (!svc_sendreply_mbuf(rqst, nd.nd_mreq)) {
  294                 svcerr_systemerr(rqst);
  295         }
  296         if (rp != NULL) {
  297                 nfsrvd_sentcache(rp, (rqst->rq_reply_seq != 0 ||
  298                     SVC_ACK(xprt, NULL)), rqst->rq_reply_seq);
  299         }
  300         svc_freereq(rqst);
  301 
  302 out:
  303         if (softdep_ast_cleanup != NULL)
  304                 softdep_ast_cleanup();
  305         NFSEXITCODE(0);
  306 }
  307 
  308 /*
  309  * Check the cache and, optionally, do the RPC.
  310  * Return the appropriate cache response.
  311  */
  312 static int
  313 nfs_proc(struct nfsrv_descript *nd, u_int32_t xid, SVCXPRT *xprt,
  314     struct nfsrvcache **rpp)
  315 {
  316         struct thread *td = curthread;
  317         int cacherep = RC_DOIT, isdgram, taglen = -1;
  318         struct mbuf *m;
  319         u_char tag[NFSV4_SMALLSTR + 1], *tagstr = NULL;
  320         u_int32_t minorvers = 0;
  321         uint32_t ack;
  322 
  323         *rpp = NULL;
  324         if (nd->nd_nam2 == NULL) {
  325                 nd->nd_flag |= ND_STREAMSOCK;
  326                 isdgram = 0;
  327         } else {
  328                 isdgram = 1;
  329         }
  330 
  331         /*
  332          * Two cases:
  333          * 1 - For NFSv2 over UDP, if we are near our malloc/mget
  334          *     limit, just drop the request. There is no
  335          *     NFSERR_RESOURCE or NFSERR_DELAY for NFSv2 and the
  336          *     client will timeout/retry over UDP in a little while.
  337          * 2 - nd_repstat == 0 && nd_mreq == NULL, which
  338          *     means a normal nfs rpc, so check the cache
  339          */
  340         if ((nd->nd_flag & ND_NFSV2) && nd->nd_nam2 != NULL &&
  341             nfsrv_mallocmget_limit()) {
  342                 cacherep = RC_DROPIT;
  343         } else {
  344                 /*
  345                  * For NFSv3, play it safe and assume that the client is
  346                  * doing retries on the same TCP connection.
  347                  */
  348                 if ((nd->nd_flag & (ND_NFSV4 | ND_STREAMSOCK)) ==
  349                     ND_STREAMSOCK)
  350                         nd->nd_flag |= ND_SAMETCPCONN;
  351                 nd->nd_retxid = xid;
  352                 nd->nd_tcpconntime = NFSD_MONOSEC;
  353                 nd->nd_sockref = xprt->xp_sockref;
  354                 if ((nd->nd_flag & ND_NFSV4) != 0)
  355                         nfsd_getminorvers(nd, tag, &tagstr, &taglen,
  356                             &minorvers);
  357                 if ((nd->nd_flag & ND_NFSV41) != 0)
  358                         /* NFSv4.1 caches replies in the session slots. */
  359                         cacherep = RC_DOIT;
  360                 else {
  361                         cacherep = nfsrvd_getcache(nd);
  362                         ack = 0;
  363                         SVC_ACK(xprt, &ack);
  364                         nfsrc_trimcache(xprt->xp_sockref, ack, 0);
  365                 }
  366         }
  367 
  368         /*
  369          * Handle the request. There are three cases.
  370          * RC_DOIT - do the RPC
  371          * RC_REPLY - return the reply already created
  372          * RC_DROPIT - just throw the request away
  373          */
  374         if (cacherep == RC_DOIT) {
  375                 if ((nd->nd_flag & ND_NFSV41) != 0)
  376                         nd->nd_xprt = xprt;
  377                 nfsrvd_dorpc(nd, isdgram, tagstr, taglen, minorvers, td);
  378                 if ((nd->nd_flag & ND_NFSV41) != 0) {
  379                         if (nd->nd_repstat != NFSERR_REPLYFROMCACHE &&
  380                             (nd->nd_flag & ND_SAVEREPLY) != 0) {
  381                                 /* Cache a copy of the reply. */
  382                                 m = m_copym(nd->nd_mreq, 0, M_COPYALL,
  383                                     M_WAITOK);
  384                         } else
  385                                 m = NULL;
  386                         if ((nd->nd_flag & ND_HASSEQUENCE) != 0)
  387                                 nfsrv_cache_session(nd->nd_sessionid,
  388                                     nd->nd_slotid, nd->nd_repstat, &m);
  389                         if (nd->nd_repstat == NFSERR_REPLYFROMCACHE)
  390                                 nd->nd_repstat = 0;
  391                         cacherep = RC_REPLY;
  392                 } else {
  393                         if (nd->nd_repstat == NFSERR_DONTREPLY)
  394                                 cacherep = RC_DROPIT;
  395                         else
  396                                 cacherep = RC_REPLY;
  397                         *rpp = nfsrvd_updatecache(nd);
  398                 }
  399         }
  400         if (tagstr != NULL && taglen > NFSV4_SMALLSTR)
  401                 free(tagstr, M_TEMP);
  402 
  403         NFSEXITCODE2(0, nd);
  404         return (cacherep);
  405 }
  406 
  407 static void
  408 nfssvc_loss(SVCXPRT *xprt)
  409 {
  410         uint32_t ack;
  411 
  412         ack = 0;
  413         SVC_ACK(xprt, &ack);
  414         nfsrc_trimcache(xprt->xp_sockref, ack, 1);
  415 }
  416 
  417 /*
  418  * Adds a socket to the list for servicing by nfsds.
  419  */
  420 int
  421 nfsrvd_addsock(struct file *fp)
  422 {
  423         int siz;
  424         struct socket *so;
  425         int error = 0;
  426         SVCXPRT *xprt;
  427         static u_int64_t sockref = 0;
  428 
  429         so = fp->f_data;
  430 
  431         siz = sb_max_adj;
  432         error = soreserve(so, siz, siz);
  433         if (error)
  434                 goto out;
  435 
  436         /*
  437          * Steal the socket from userland so that it doesn't close
  438          * unexpectedly.
  439          */
  440         if (so->so_type == SOCK_DGRAM)
  441                 xprt = svc_dg_create(nfsrvd_pool, so, 0, 0);
  442         else
  443                 xprt = svc_vc_create(nfsrvd_pool, so, 0, 0);
  444         if (xprt) {
  445                 fp->f_ops = &badfileops;
  446                 fp->f_data = NULL;
  447                 xprt->xp_sockref = ++sockref;
  448                 if (nfs_minvers == NFS_VER2)
  449                         svc_reg(xprt, NFS_PROG, NFS_VER2, nfssvc_program,
  450                             NULL);
  451                 if (nfs_minvers <= NFS_VER3 && nfs_maxvers >= NFS_VER3)
  452                         svc_reg(xprt, NFS_PROG, NFS_VER3, nfssvc_program,
  453                             NULL);
  454                 if (nfs_maxvers >= NFS_VER4)
  455                         svc_reg(xprt, NFS_PROG, NFS_VER4, nfssvc_program,
  456                             NULL);
  457                 if (so->so_type == SOCK_STREAM)
  458                         svc_loss_reg(xprt, nfssvc_loss);
  459                 SVC_RELEASE(xprt);
  460         }
  461 
  462 out:
  463         NFSEXITCODE(error);
  464         return (error);
  465 }
  466 
  467 /*
  468  * Called by nfssvc() for nfsds. Just loops around servicing rpc requests
  469  * until it is killed by a signal.
  470  */
  471 int
  472 nfsrvd_nfsd(struct thread *td, struct nfsd_nfsd_args *args)
  473 {
  474         char principal[MAXHOSTNAMELEN + 5];
  475         struct proc *p;
  476         int error = 0;
  477         bool_t ret2, ret3, ret4;
  478 
  479         error = copyinstr(args->principal, principal, sizeof (principal),
  480             NULL);
  481         if (error)
  482                 goto out;
  483 
  484         /*
  485          * Only the first nfsd actually does any work. The RPC code
  486          * adds threads to it as needed. Any extra processes offered
  487          * by nfsd just exit. If nfsd is new enough, it will call us
  488          * once with a structure that specifies how many threads to
  489          * use.
  490          */
  491         NFSD_LOCK();
  492         if (newnfs_numnfsd == 0) {
  493                 p = td->td_proc;
  494                 PROC_LOCK(p);
  495                 p->p_flag2 |= P2_AST_SU;
  496                 PROC_UNLOCK(p);
  497                 newnfs_numnfsd++;
  498 
  499                 NFSD_UNLOCK();
  500 
  501                 /* An empty string implies AUTH_SYS only. */
  502                 if (principal[0] != '\0') {
  503                         ret2 = rpc_gss_set_svc_name_call(principal,
  504                             "kerberosv5", GSS_C_INDEFINITE, NFS_PROG, NFS_VER2);
  505                         ret3 = rpc_gss_set_svc_name_call(principal,
  506                             "kerberosv5", GSS_C_INDEFINITE, NFS_PROG, NFS_VER3);
  507                         ret4 = rpc_gss_set_svc_name_call(principal,
  508                             "kerberosv5", GSS_C_INDEFINITE, NFS_PROG, NFS_VER4);
  509 
  510                         if (!ret2 || !ret3 || !ret4)
  511                                 printf("nfsd: can't register svc name\n");
  512                 }
  513 
  514                 nfsrvd_pool->sp_minthreads = args->minthreads;
  515                 nfsrvd_pool->sp_maxthreads = args->maxthreads;
  516                         
  517                 svc_run(nfsrvd_pool);
  518 
  519                 if (principal[0] != '\0') {
  520                         rpc_gss_clear_svc_name_call(NFS_PROG, NFS_VER2);
  521                         rpc_gss_clear_svc_name_call(NFS_PROG, NFS_VER3);
  522                         rpc_gss_clear_svc_name_call(NFS_PROG, NFS_VER4);
  523                 }
  524 
  525                 NFSD_LOCK();
  526                 newnfs_numnfsd--;
  527                 nfsrvd_init(1);
  528                 PROC_LOCK(p);
  529                 p->p_flag2 &= ~P2_AST_SU;
  530                 PROC_UNLOCK(p);
  531         }
  532         NFSD_UNLOCK();
  533 
  534 out:
  535         NFSEXITCODE(error);
  536         return (error);
  537 }
  538 
  539 /*
  540  * Initialize the data structures for the server.
  541  * Handshake with any new nfsds starting up to avoid any chance of
  542  * corruption.
  543  */
  544 void
  545 nfsrvd_init(int terminating)
  546 {
  547 
  548         NFSD_LOCK_ASSERT();
  549 
  550         if (terminating) {
  551                 nfsd_master_proc = NULL;
  552                 NFSD_UNLOCK();
  553                 nfsrv_freeallbackchannel_xprts();
  554                 svcpool_destroy(nfsrvd_pool);
  555                 nfsrvd_pool = NULL;
  556                 NFSD_LOCK();
  557         }
  558 
  559         NFSD_UNLOCK();
  560 
  561         nfsrvd_pool = svcpool_create("nfsd", SYSCTL_STATIC_CHILDREN(_vfs_nfsd));
  562         nfsrvd_pool->sp_rcache = NULL;
  563         nfsrvd_pool->sp_assign = fhanew_assign;
  564         nfsrvd_pool->sp_done = fha_nd_complete;
  565 
  566         NFSD_LOCK();
  567 }
  568
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FreeBSD/Linux Kernel Cross Reference sys/fs/nfsserver/nfs_nfsdkrpc.c

FreeBSD/Linux Kernel Cross Reference
sys/fs/nfsserver/nfs_nfsdkrpc.c
