2 * Copyright (c) 1989, 1993, 1995
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
32 * from nfs_vfsops.c 8.12 (Berkeley) 5/20/95
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 #include "opt_bootp.h"
40 #include "opt_nfsroot.h"
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/kernel.h>
47 #include <sys/clock.h>
49 #include <sys/limits.h>
51 #include <sys/malloc.h>
53 #include <sys/module.h>
54 #include <sys/mount.h>
56 #include <sys/socket.h>
57 #include <sys/socketvar.h>
58 #include <sys/sockio.h>
59 #include <sys/sysctl.h>
60 #include <sys/vnode.h>
61 #include <sys/signalvar.h>
64 #include <vm/vm_extern.h>
68 #include <net/route.h>
69 #include <netinet/in.h>
71 #include <fs/nfs/nfsport.h>
72 #include <fs/nfsclient/nfsnode.h>
73 #include <fs/nfsclient/nfsmount.h>
74 #include <fs/nfsclient/nfs.h>
75 #include <nfs/nfsdiskless.h>
77 FEATURE(nfscl, "NFSv4 client");
79 extern int nfscl_ticks;
80 extern struct timeval nfsboottime;
81 extern int nfsrv_useacl;
82 extern int nfscl_debuglevel;
83 extern enum nfsiod_state ncl_iodwant[NFS_MAXASYNCDAEMON];
84 extern struct nfsmount *ncl_iodmount[NFS_MAXASYNCDAEMON];
85 extern struct mtx ncl_iod_mutex;
88 MALLOC_DEFINE(M_NEWNFSREQ, "newnfsclient_req", "NFS request header");
89 MALLOC_DEFINE(M_NEWNFSMNT, "newnfsmnt", "NFS mount struct");
91 SYSCTL_DECL(_vfs_nfs);
92 static int nfs_ip_paranoia = 1;
93 SYSCTL_INT(_vfs_nfs, OID_AUTO, nfs_ip_paranoia, CTLFLAG_RW,
94 &nfs_ip_paranoia, 0, "");
95 static int nfs_tprintf_initial_delay = NFS_TPRINTF_INITIAL_DELAY;
96 SYSCTL_INT(_vfs_nfs, NFS_TPRINTF_INITIAL_DELAY,
97 downdelayinitial, CTLFLAG_RW, &nfs_tprintf_initial_delay, 0, "");
98 /* how long between console messages "nfs server foo not responding" */
99 static int nfs_tprintf_delay = NFS_TPRINTF_DELAY;
100 SYSCTL_INT(_vfs_nfs, NFS_TPRINTF_DELAY,
101 downdelayinterval, CTLFLAG_RW, &nfs_tprintf_delay, 0, "");
104 SYSCTL_INT(_vfs_nfs, OID_AUTO, debug, CTLFLAG_RW, &nfs_debug, 0,
105 "Toggle debug flag");
108 static int nfs_mountroot(struct mount *);
109 static void nfs_sec_name(char *, int *);
110 static void nfs_decode_args(struct mount *mp, struct nfsmount *nmp,
111 struct nfs_args *argp, const char *, struct ucred *,
113 static int mountnfs(struct nfs_args *, struct mount *,
114 struct sockaddr *, char *, u_char *, int, u_char *, int,
115 u_char *, int, struct vnode **, struct ucred *,
116 struct thread *, int, int, int);
117 static void nfs_getnlminfo(struct vnode *, uint8_t *, size_t *,
118 struct sockaddr_storage *, int *, off_t *,
120 static vfs_mount_t nfs_mount;
121 static vfs_cmount_t nfs_cmount;
122 static vfs_unmount_t nfs_unmount;
123 static vfs_root_t nfs_root;
124 static vfs_statfs_t nfs_statfs;
125 static vfs_sync_t nfs_sync;
126 static vfs_sysctl_t nfs_sysctl;
127 static vfs_purge_t nfs_purge;
130 * nfs vfs operations.
132 static struct vfsops nfs_vfsops = {
133 .vfs_init = ncl_init,
134 .vfs_mount = nfs_mount,
135 .vfs_cmount = nfs_cmount,
136 .vfs_root = nfs_root,
137 .vfs_statfs = nfs_statfs,
138 .vfs_sync = nfs_sync,
139 .vfs_uninit = ncl_uninit,
140 .vfs_unmount = nfs_unmount,
141 .vfs_sysctl = nfs_sysctl,
142 .vfs_purge = nfs_purge,
144 VFS_SET(nfs_vfsops, nfs, VFCF_NETWORK | VFCF_SBDRY);
146 /* So that loader and kldload(2) can find us, wherever we are.. */
147 MODULE_VERSION(nfs, 1);
148 MODULE_DEPEND(nfs, nfscommon, 1, 1, 1);
149 MODULE_DEPEND(nfs, krpc, 1, 1, 1);
150 MODULE_DEPEND(nfs, nfssvc, 1, 1, 1);
151 MODULE_DEPEND(nfs, nfslock, 1, 1, 1);
154 * This structure is now defined in sys/nfs/nfs_diskless.c so that it
155 * can be shared by both NFS clients. It is declared here so that it
156 * will be defined for kernels built without NFS_ROOT, although it
157 * isn't used in that case.
159 #if !defined(NFS_ROOT)
160 struct nfs_diskless nfs_diskless = { { { 0 } } };
161 struct nfsv3_diskless nfsv3_diskless = { { { 0 } } };
162 int nfs_diskless_valid = 0;
165 SYSCTL_INT(_vfs_nfs, OID_AUTO, diskless_valid, CTLFLAG_RD,
166 &nfs_diskless_valid, 0,
167 "Has the diskless struct been filled correctly");
169 SYSCTL_STRING(_vfs_nfs, OID_AUTO, diskless_rootpath, CTLFLAG_RD,
170 nfsv3_diskless.root_hostnam, 0, "Path to nfs root");
172 SYSCTL_OPAQUE(_vfs_nfs, OID_AUTO, diskless_rootaddr, CTLFLAG_RD,
173 &nfsv3_diskless.root_saddr, sizeof(nfsv3_diskless.root_saddr),
174 "%Ssockaddr_in", "Diskless root nfs address");
177 void newnfsargs_ntoh(struct nfs_args *);
178 static int nfs_mountdiskless(char *,
179 struct sockaddr_in *, struct nfs_args *,
180 struct thread *, struct vnode **, struct mount *);
181 static void nfs_convert_diskless(void);
182 static void nfs_convert_oargs(struct nfs_args *args,
183 struct onfs_args *oargs);
186 newnfs_iosize(struct nfsmount *nmp)
190 /* First, set the upper limit for iosize */
191 if (nmp->nm_flag & NFSMNT_NFSV4) {
192 maxio = NFS_MAXBSIZE;
193 } else if (nmp->nm_flag & NFSMNT_NFSV3) {
194 if (nmp->nm_sotype == SOCK_DGRAM)
195 maxio = NFS_MAXDGRAMDATA;
197 maxio = NFS_MAXBSIZE;
199 maxio = NFS_V2MAXDATA;
201 if (nmp->nm_rsize > maxio || nmp->nm_rsize == 0)
202 nmp->nm_rsize = maxio;
203 if (nmp->nm_rsize > NFS_MAXBSIZE)
204 nmp->nm_rsize = NFS_MAXBSIZE;
205 if (nmp->nm_readdirsize > maxio || nmp->nm_readdirsize == 0)
206 nmp->nm_readdirsize = maxio;
207 if (nmp->nm_readdirsize > nmp->nm_rsize)
208 nmp->nm_readdirsize = nmp->nm_rsize;
209 if (nmp->nm_wsize > maxio || nmp->nm_wsize == 0)
210 nmp->nm_wsize = maxio;
211 if (nmp->nm_wsize > NFS_MAXBSIZE)
212 nmp->nm_wsize = NFS_MAXBSIZE;
215 * Calculate the size used for io buffers. Use the larger
216 * of the two sizes to minimise nfs requests but make sure
217 * that it is at least one VM page to avoid wasting buffer
218 * space. It must also be at least NFS_DIRBLKSIZ, since
219 * that is the buffer size used for directories.
221 iosize = imax(nmp->nm_rsize, nmp->nm_wsize);
222 iosize = imax(iosize, PAGE_SIZE);
223 iosize = imax(iosize, NFS_DIRBLKSIZ);
224 nmp->nm_mountp->mnt_stat.f_iosize = iosize;
229 nfs_convert_oargs(struct nfs_args *args, struct onfs_args *oargs)
232 args->version = NFS_ARGSVERSION;
233 args->addr = oargs->addr;
234 args->addrlen = oargs->addrlen;
235 args->sotype = oargs->sotype;
236 args->proto = oargs->proto;
237 args->fh = oargs->fh;
238 args->fhsize = oargs->fhsize;
239 args->flags = oargs->flags;
240 args->wsize = oargs->wsize;
241 args->rsize = oargs->rsize;
242 args->readdirsize = oargs->readdirsize;
243 args->timeo = oargs->timeo;
244 args->retrans = oargs->retrans;
245 args->readahead = oargs->readahead;
246 args->hostname = oargs->hostname;
250 nfs_convert_diskless(void)
253 bcopy(&nfs_diskless.myif, &nfsv3_diskless.myif,
254 sizeof(struct ifaliasreq));
255 bcopy(&nfs_diskless.mygateway, &nfsv3_diskless.mygateway,
256 sizeof(struct sockaddr_in));
257 nfs_convert_oargs(&nfsv3_diskless.root_args,&nfs_diskless.root_args);
258 if (nfsv3_diskless.root_args.flags & NFSMNT_NFSV3) {
259 nfsv3_diskless.root_fhsize = NFSX_MYFH;
260 bcopy(nfs_diskless.root_fh, nfsv3_diskless.root_fh, NFSX_MYFH);
262 nfsv3_diskless.root_fhsize = NFSX_V2FH;
263 bcopy(nfs_diskless.root_fh, nfsv3_diskless.root_fh, NFSX_V2FH);
265 bcopy(&nfs_diskless.root_saddr,&nfsv3_diskless.root_saddr,
266 sizeof(struct sockaddr_in));
267 bcopy(nfs_diskless.root_hostnam, nfsv3_diskless.root_hostnam, MNAMELEN);
268 nfsv3_diskless.root_time = nfs_diskless.root_time;
269 bcopy(nfs_diskless.my_hostnam, nfsv3_diskless.my_hostnam,
271 nfs_diskless_valid = 3;
278 nfs_statfs(struct mount *mp, struct statfs *sbp)
282 struct nfsmount *nmp = VFSTONFS(mp);
283 struct nfsvattr nfsva;
286 int error = 0, attrflag, gotfsinfo = 0, ret;
291 error = vfs_busy(mp, MBF_NOWAIT);
294 error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np, LK_EXCLUSIVE);
300 mtx_lock(&nmp->nm_mtx);
301 if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp)) {
302 mtx_unlock(&nmp->nm_mtx);
303 error = nfsrpc_fsinfo(vp, &fs, td->td_ucred, td, &nfsva,
308 mtx_unlock(&nmp->nm_mtx);
310 error = nfsrpc_statfs(vp, &sb, &fs, td->td_ucred, td, &nfsva,
313 NFSCL_DEBUG(2, "statfs=%d\n", error);
315 ret = nfsrpc_getattrnovp(nmp, nmp->nm_fh, nmp->nm_fhsize, 1,
316 td->td_ucred, td, &nfsva, NULL, NULL);
319 * Just set default values to get things going.
321 NFSBZERO((caddr_t)&nfsva, sizeof (struct nfsvattr));
322 nfsva.na_vattr.va_type = VDIR;
323 nfsva.na_vattr.va_mode = 0777;
324 nfsva.na_vattr.va_nlink = 100;
325 nfsva.na_vattr.va_uid = (uid_t)0;
326 nfsva.na_vattr.va_gid = (gid_t)0;
327 nfsva.na_vattr.va_fileid = 2;
328 nfsva.na_vattr.va_gen = 1;
329 nfsva.na_vattr.va_blocksize = NFS_FABLKSIZE;
330 nfsva.na_vattr.va_size = 512 * 1024;
333 (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
335 mtx_lock(&nmp->nm_mtx);
336 if (gotfsinfo || (nmp->nm_flag & NFSMNT_NFSV4))
337 nfscl_loadfsinfo(nmp, &fs);
338 nfscl_loadsbinfo(nmp, &sb, sbp);
339 sbp->f_iosize = newnfs_iosize(nmp);
340 mtx_unlock(&nmp->nm_mtx);
341 if (sbp != &mp->mnt_stat) {
342 bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
343 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
345 strncpy(&sbp->f_fstypename[0], mp->mnt_vfc->vfc_name, MFSNAMELEN);
346 } else if (NFS_ISV4(vp)) {
347 error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
355 * nfs version 3 fsinfo rpc call
358 ncl_fsinfo(struct nfsmount *nmp, struct vnode *vp, struct ucred *cred,
362 struct nfsvattr nfsva;
365 error = nfsrpc_fsinfo(vp, &fs, cred, td, &nfsva, &attrflag, NULL);
368 (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0,
370 mtx_lock(&nmp->nm_mtx);
371 nfscl_loadfsinfo(nmp, &fs);
372 mtx_unlock(&nmp->nm_mtx);
378 * Mount a remote root fs via. nfs. This depends on the info in the
379 * nfs_diskless structure that has been filled in properly by some primary
381 * It goes something like this:
382 * - do enough of "ifconfig" by calling ifioctl() so that the system
383 * can talk to the server
384 * - If nfs_diskless.mygateway is filled in, use that address as
386 * - build the rootfs mount point and call mountnfs() to do the rest.
388 * It is assumed to be safe to read, modify, and write the nfsv3_diskless
389 * structure, as well as other global NFS client variables here, as
390 * nfs_mountroot() will be called once in the boot before any other NFS
391 * client activity occurs.
394 nfs_mountroot(struct mount *mp)
396 struct thread *td = curthread;
397 struct nfsv3_diskless *nd = &nfsv3_diskless;
406 #if defined(BOOTP_NFSROOT) && defined(BOOTP)
407 bootpc_init(); /* use bootp to get nfs_diskless filled in */
408 #elif defined(NFS_ROOT)
409 nfs_setup_diskless();
412 if (nfs_diskless_valid == 0)
414 if (nfs_diskless_valid == 1)
415 nfs_convert_diskless();
418 * XXX splnet, so networks will receive...
423 * Do enough of ifconfig(8) so that the critical net interface can
424 * talk to the server.
426 error = socreate(nd->myif.ifra_addr.sa_family, &so, nd->root_args.sotype, 0,
429 panic("nfs_mountroot: socreate(%04x): %d",
430 nd->myif.ifra_addr.sa_family, error);
432 #if 0 /* XXX Bad idea */
434 * We might not have been told the right interface, so we pass
435 * over the first ten interfaces of the same kind, until we get
436 * one of them configured.
439 for (i = strlen(nd->myif.ifra_name) - 1;
440 nd->myif.ifra_name[i] >= '0' &&
441 nd->myif.ifra_name[i] <= '9';
442 nd->myif.ifra_name[i] ++) {
443 error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
448 error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
450 panic("nfs_mountroot: SIOCAIFADDR: %d", error);
451 if ((cp = kern_getenv("boot.netif.mtu")) != NULL) {
452 ir.ifr_mtu = strtol(cp, NULL, 10);
453 bcopy(nd->myif.ifra_name, ir.ifr_name, IFNAMSIZ);
455 error = ifioctl(so, SIOCSIFMTU, (caddr_t)&ir, td);
457 printf("nfs_mountroot: SIOCSIFMTU: %d", error);
462 * If the gateway field is filled in, set it as the default route.
463 * Note that pxeboot will set a default route of 0 if the route
464 * is not set by the DHCP server. Check also for a value of 0
465 * to avoid panicking inappropriately in that situation.
467 if (nd->mygateway.sin_len != 0 &&
468 nd->mygateway.sin_addr.s_addr != 0) {
469 struct sockaddr_in mask, sin;
471 bzero((caddr_t)&mask, sizeof(mask));
473 sin.sin_family = AF_INET;
474 sin.sin_len = sizeof(sin);
475 /* XXX MRT use table 0 for this sort of thing */
476 CURVNET_SET(TD_TO_VNET(td));
477 error = rtrequest_fib(RTM_ADD, (struct sockaddr *)&sin,
478 (struct sockaddr *)&nd->mygateway,
479 (struct sockaddr *)&mask,
480 RTF_UP | RTF_GATEWAY, NULL, RT_DEFAULT_FIB);
483 panic("nfs_mountroot: RTM_ADD: %d", error);
487 * Create the rootfs mount point.
489 nd->root_args.fh = nd->root_fh;
490 nd->root_args.fhsize = nd->root_fhsize;
491 l = ntohl(nd->root_saddr.sin_addr.s_addr);
492 snprintf(buf, sizeof(buf), "%ld.%ld.%ld.%ld:%s",
493 (l >> 24) & 0xff, (l >> 16) & 0xff,
494 (l >> 8) & 0xff, (l >> 0) & 0xff, nd->root_hostnam);
495 printf("NFS ROOT: %s\n", buf);
496 nd->root_args.hostname = buf;
497 if ((error = nfs_mountdiskless(buf,
498 &nd->root_saddr, &nd->root_args, td, &vp, mp)) != 0) {
503 * This is not really an nfs issue, but it is much easier to
504 * set hostname here and then let the "/etc/rc.xxx" files
505 * mount the right /var based upon its preset value.
507 mtx_lock(&prison0.pr_mtx);
508 strlcpy(prison0.pr_hostname, nd->my_hostnam,
509 sizeof(prison0.pr_hostname));
510 mtx_unlock(&prison0.pr_mtx);
511 inittodr(ntohl(nd->root_time));
516 * Internal version of mount system call for diskless setup.
519 nfs_mountdiskless(char *path,
520 struct sockaddr_in *sin, struct nfs_args *args, struct thread *td,
521 struct vnode **vpp, struct mount *mp)
523 struct sockaddr *nam;
528 * Find the directory path in "path", which also has the server's
529 * name/ip address in it.
531 dirpath = strchr(path, ':');
533 dirlen = strlen(++dirpath);
536 nam = sodupsockaddr((struct sockaddr *)sin, M_WAITOK);
537 if ((error = mountnfs(args, mp, nam, path, NULL, 0, dirpath, dirlen,
538 NULL, 0, vpp, td->td_ucred, td, NFS_DEFAULT_NAMETIMEO,
539 NFS_DEFAULT_NEGNAMETIMEO, 0)) != 0) {
540 printf("nfs_mountroot: mount %s on /: %d\n", path, error);
547 nfs_sec_name(char *sec, int *flagsp)
549 if (!strcmp(sec, "krb5"))
550 *flagsp |= NFSMNT_KERB;
551 else if (!strcmp(sec, "krb5i"))
552 *flagsp |= (NFSMNT_KERB | NFSMNT_INTEGRITY);
553 else if (!strcmp(sec, "krb5p"))
554 *flagsp |= (NFSMNT_KERB | NFSMNT_PRIVACY);
558 nfs_decode_args(struct mount *mp, struct nfsmount *nmp, struct nfs_args *argp,
559 const char *hostname, struct ucred *cred, struct thread *td)
568 * Set read-only flag if requested; otherwise, clear it if this is
569 * an update. If this is not an update, then either the read-only
570 * flag is already clear, or this is a root mount and it was set
571 * intentionally at some previous point.
573 if (vfs_getopt(mp->mnt_optnew, "ro", NULL, NULL) == 0) {
575 mp->mnt_flag |= MNT_RDONLY;
577 } else if (mp->mnt_flag & MNT_UPDATE) {
579 mp->mnt_flag &= ~MNT_RDONLY;
584 * Silently clear NFSMNT_NOCONN if it's a TCP mount, it makes
585 * no sense in that context. Also, set up appropriate retransmit
586 * and soft timeout behavior.
588 if (argp->sotype == SOCK_STREAM) {
589 nmp->nm_flag &= ~NFSMNT_NOCONN;
590 nmp->nm_timeo = NFS_MAXTIMEO;
591 if ((argp->flags & NFSMNT_NFSV4) != 0)
592 nmp->nm_retry = INT_MAX;
594 nmp->nm_retry = NFS_RETRANS_TCP;
597 /* Also clear RDIRPLUS if NFSv2, it crashes some servers */
598 if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0) {
599 argp->flags &= ~NFSMNT_RDIRPLUS;
600 nmp->nm_flag &= ~NFSMNT_RDIRPLUS;
603 /* Re-bind if rsrvd port requested and wasn't on one */
604 adjsock = !(nmp->nm_flag & NFSMNT_RESVPORT)
605 && (argp->flags & NFSMNT_RESVPORT);
606 /* Also re-bind if we're switching to/from a connected UDP socket */
607 adjsock |= ((nmp->nm_flag & NFSMNT_NOCONN) !=
608 (argp->flags & NFSMNT_NOCONN));
610 /* Update flags atomically. Don't change the lock bits. */
611 nmp->nm_flag = argp->flags | nmp->nm_flag;
614 if ((argp->flags & NFSMNT_TIMEO) && argp->timeo > 0) {
615 nmp->nm_timeo = (argp->timeo * NFS_HZ + 5) / 10;
616 if (nmp->nm_timeo < NFS_MINTIMEO)
617 nmp->nm_timeo = NFS_MINTIMEO;
618 else if (nmp->nm_timeo > NFS_MAXTIMEO)
619 nmp->nm_timeo = NFS_MAXTIMEO;
622 if ((argp->flags & NFSMNT_RETRANS) && argp->retrans > 1) {
623 nmp->nm_retry = argp->retrans;
624 if (nmp->nm_retry > NFS_MAXREXMIT)
625 nmp->nm_retry = NFS_MAXREXMIT;
628 if ((argp->flags & NFSMNT_WSIZE) && argp->wsize > 0) {
629 nmp->nm_wsize = argp->wsize;
631 * Clip at the power of 2 below the size. There is an
632 * issue (not isolated) that causes intermittent page
633 * faults if this is not done.
635 if (nmp->nm_wsize > NFS_FABLKSIZE)
636 nmp->nm_wsize = 1 << (fls(nmp->nm_wsize) - 1);
638 nmp->nm_wsize = NFS_FABLKSIZE;
641 if ((argp->flags & NFSMNT_RSIZE) && argp->rsize > 0) {
642 nmp->nm_rsize = argp->rsize;
644 * Clip at the power of 2 below the size. There is an
645 * issue (not isolated) that causes intermittent page
646 * faults if this is not done.
648 if (nmp->nm_rsize > NFS_FABLKSIZE)
649 nmp->nm_rsize = 1 << (fls(nmp->nm_rsize) - 1);
651 nmp->nm_rsize = NFS_FABLKSIZE;
654 if ((argp->flags & NFSMNT_READDIRSIZE) && argp->readdirsize > 0) {
655 nmp->nm_readdirsize = argp->readdirsize;
658 if ((argp->flags & NFSMNT_ACREGMIN) && argp->acregmin >= 0)
659 nmp->nm_acregmin = argp->acregmin;
661 nmp->nm_acregmin = NFS_MINATTRTIMO;
662 if ((argp->flags & NFSMNT_ACREGMAX) && argp->acregmax >= 0)
663 nmp->nm_acregmax = argp->acregmax;
665 nmp->nm_acregmax = NFS_MAXATTRTIMO;
666 if ((argp->flags & NFSMNT_ACDIRMIN) && argp->acdirmin >= 0)
667 nmp->nm_acdirmin = argp->acdirmin;
669 nmp->nm_acdirmin = NFS_MINDIRATTRTIMO;
670 if ((argp->flags & NFSMNT_ACDIRMAX) && argp->acdirmax >= 0)
671 nmp->nm_acdirmax = argp->acdirmax;
673 nmp->nm_acdirmax = NFS_MAXDIRATTRTIMO;
674 if (nmp->nm_acdirmin > nmp->nm_acdirmax)
675 nmp->nm_acdirmin = nmp->nm_acdirmax;
676 if (nmp->nm_acregmin > nmp->nm_acregmax)
677 nmp->nm_acregmin = nmp->nm_acregmax;
679 if ((argp->flags & NFSMNT_READAHEAD) && argp->readahead >= 0) {
680 if (argp->readahead <= NFS_MAXRAHEAD)
681 nmp->nm_readahead = argp->readahead;
683 nmp->nm_readahead = NFS_MAXRAHEAD;
685 if ((argp->flags & NFSMNT_WCOMMITSIZE) && argp->wcommitsize >= 0) {
686 if (argp->wcommitsize < nmp->nm_wsize)
687 nmp->nm_wcommitsize = nmp->nm_wsize;
689 nmp->nm_wcommitsize = argp->wcommitsize;
692 adjsock |= ((nmp->nm_sotype != argp->sotype) ||
693 (nmp->nm_soproto != argp->proto));
695 if (nmp->nm_client != NULL && adjsock) {
696 int haslock = 0, error = 0;
698 if (nmp->nm_sotype == SOCK_STREAM) {
699 error = newnfs_sndlock(&nmp->nm_sockreq.nr_lock);
704 newnfs_disconnect(&nmp->nm_sockreq);
706 newnfs_sndunlock(&nmp->nm_sockreq.nr_lock);
707 nmp->nm_sotype = argp->sotype;
708 nmp->nm_soproto = argp->proto;
709 if (nmp->nm_sotype == SOCK_DGRAM)
710 while (newnfs_connect(nmp, &nmp->nm_sockreq,
712 printf("newnfs_args: retrying connect\n");
713 (void) nfs_catnap(PSOCK, 0, "nfscon");
717 nmp->nm_sotype = argp->sotype;
718 nmp->nm_soproto = argp->proto;
721 if (hostname != NULL) {
722 strlcpy(nmp->nm_hostname, hostname,
723 sizeof(nmp->nm_hostname));
724 p = strchr(nmp->nm_hostname, ':');
730 static const char *nfs_opts[] = { "from", "nfs_args",
731 "noac", "noatime", "noexec", "suiddir", "nosuid", "nosymfollow", "union",
732 "noclusterr", "noclusterw", "multilabel", "acls", "force", "update",
733 "async", "noconn", "nolockd", "conn", "lockd", "intr", "rdirplus",
734 "readdirsize", "soft", "hard", "mntudp", "tcp", "udp", "wsize", "rsize",
735 "retrans", "actimeo", "acregmin", "acregmax", "acdirmin", "acdirmax",
736 "resvport", "readahead", "hostname", "timeo", "timeout", "addr", "fh",
737 "nfsv3", "sec", "principal", "nfsv4", "gssname", "allgssname", "dirpath",
738 "minorversion", "nametimeo", "negnametimeo", "nocto", "noncontigwr",
739 "pnfs", "wcommitsize",
743 * Parse the "from" mountarg, passed by the generic mount(8) program
744 * or the mountroot code. This is used when rerooting into NFS.
746 * Note that the "hostname" is actually a "hostname:/share/path" string.
749 nfs_mount_parse_from(struct vfsoptlist *opts, char **hostnamep,
750 struct sockaddr_in **sinp, char *dirpath, size_t dirpathsize, int *dirlenp)
752 char *nam, *delimp, *hostp, *spec;
753 int error, have_bracket = 0, offset, rv, speclen;
754 struct sockaddr_in *sin;
757 error = vfs_getopt(opts, "from", (void **)&spec, &speclen);
760 nam = malloc(MNAMELEN + 1, M_TEMP, M_WAITOK);
763 * This part comes from sbin/mount_nfs/mount_nfs.c:getnfsargs().
765 if (*spec == '[' && (delimp = strchr(spec + 1, ']')) != NULL &&
766 *(delimp + 1) == ':') {
770 } else if ((delimp = strrchr(spec, ':')) != NULL) {
773 } else if ((delimp = strrchr(spec, '@')) != NULL) {
774 printf("%s: path@server syntax is deprecated, "
775 "use server:path\n", __func__);
778 printf("%s: no <host>:<dirpath> nfs-name\n", __func__);
785 * If there has been a trailing slash at mounttime it seems
786 * that some mountd implementations fail to remove the mount
787 * entries from their mountlist while unmounting.
789 for (speclen = strlen(spec);
790 speclen > 1 && spec[speclen - 1] == '/';
792 spec[speclen - 1] = '\0';
793 if (strlen(hostp) + strlen(spec) + 1 > MNAMELEN) {
794 printf("%s: %s:%s: name too long", __func__, hostp, spec);
798 /* Make both '@' and ':' notations equal */
799 if (*hostp != '\0') {
804 memmove(nam + offset, hostp, len);
806 nam[len + offset++] = ']';
807 nam[len + offset++] = ':';
808 memmove(nam + len + offset, spec, speclen);
809 nam[len + speclen + offset] = '\0';
816 sin = malloc(sizeof(*sin), M_SONAME, M_WAITOK);
817 rv = inet_pton(AF_INET, hostp, &sin->sin_addr);
819 printf("%s: cannot parse '%s', inet_pton() returned %d\n",
820 __func__, hostp, rv);
826 sin->sin_len = sizeof(*sin);
827 sin->sin_family = AF_INET;
829 * XXX: hardcoded port number.
831 sin->sin_port = htons(2049);
833 *hostnamep = strdup(nam, M_NEWNFSMNT);
835 strlcpy(dirpath, spec, dirpathsize);
836 *dirlenp = strlen(dirpath);
846 * It seems a bit dumb to copyinstr() the host and path here and then
847 * bcopy() them in mountnfs(), but I wanted to detect errors before
848 * doing the getsockaddr() call because getsockaddr() allocates an mbuf and
849 * an error after that means that I have to release the mbuf.
853 nfs_mount(struct mount *mp)
855 struct nfs_args args = {
856 .version = NFS_ARGSVERSION,
858 .addrlen = sizeof (struct sockaddr_in),
859 .sotype = SOCK_STREAM,
863 .flags = NFSMNT_RESVPORT,
866 .readdirsize = NFS_READDIRSIZE,
868 .retrans = NFS_RETRANS,
869 .readahead = NFS_DEFRAHEAD,
870 .wcommitsize = 0, /* was: NQ_DEFLEASE */
872 .acregmin = NFS_MINATTRTIMO,
873 .acregmax = NFS_MAXATTRTIMO,
874 .acdirmin = NFS_MINDIRATTRTIMO,
875 .acdirmax = NFS_MAXDIRATTRTIMO,
877 int error = 0, ret, len;
878 struct sockaddr *nam = NULL;
882 u_char nfh[NFSX_FHMAX], krbname[100], dirpath[100], srvkrbname[100];
883 char *cp, *opt, *name, *secname;
884 int nametimeo = NFS_DEFAULT_NAMETIMEO;
885 int negnametimeo = NFS_DEFAULT_NEGNAMETIMEO;
887 int dirlen, has_nfs_args_opt, has_nfs_from_opt,
888 krbnamelen, srvkrbnamelen;
891 has_nfs_args_opt = 0;
892 has_nfs_from_opt = 0;
893 hst = malloc(MNAMELEN, M_TEMP, M_WAITOK);
894 if (vfs_filteropt(mp->mnt_optnew, nfs_opts)) {
900 if ((mp->mnt_flag & (MNT_ROOTFS | MNT_UPDATE)) == MNT_ROOTFS &&
901 nfs_diskless_valid != 0) {
902 error = nfs_mountroot(mp);
909 * The old mount_nfs program passed the struct nfs_args
910 * from userspace to kernel. The new mount_nfs program
911 * passes string options via nmount() from userspace to kernel
912 * and we populate the struct nfs_args in the kernel.
914 if (vfs_getopt(mp->mnt_optnew, "nfs_args", NULL, NULL) == 0) {
915 error = vfs_copyopt(mp->mnt_optnew, "nfs_args", &args,
920 if (args.version != NFS_ARGSVERSION) {
921 error = EPROGMISMATCH;
924 has_nfs_args_opt = 1;
927 /* Handle the new style options. */
928 if (vfs_getopt(mp->mnt_optnew, "noac", NULL, NULL) == 0) {
929 args.acdirmin = args.acdirmax =
930 args.acregmin = args.acregmax = 0;
931 args.flags |= NFSMNT_ACDIRMIN | NFSMNT_ACDIRMAX |
932 NFSMNT_ACREGMIN | NFSMNT_ACREGMAX;
934 if (vfs_getopt(mp->mnt_optnew, "noconn", NULL, NULL) == 0)
935 args.flags |= NFSMNT_NOCONN;
936 if (vfs_getopt(mp->mnt_optnew, "conn", NULL, NULL) == 0)
937 args.flags &= ~NFSMNT_NOCONN;
938 if (vfs_getopt(mp->mnt_optnew, "nolockd", NULL, NULL) == 0)
939 args.flags |= NFSMNT_NOLOCKD;
940 if (vfs_getopt(mp->mnt_optnew, "lockd", NULL, NULL) == 0)
941 args.flags &= ~NFSMNT_NOLOCKD;
942 if (vfs_getopt(mp->mnt_optnew, "intr", NULL, NULL) == 0)
943 args.flags |= NFSMNT_INT;
944 if (vfs_getopt(mp->mnt_optnew, "rdirplus", NULL, NULL) == 0)
945 args.flags |= NFSMNT_RDIRPLUS;
946 if (vfs_getopt(mp->mnt_optnew, "resvport", NULL, NULL) == 0)
947 args.flags |= NFSMNT_RESVPORT;
948 if (vfs_getopt(mp->mnt_optnew, "noresvport", NULL, NULL) == 0)
949 args.flags &= ~NFSMNT_RESVPORT;
950 if (vfs_getopt(mp->mnt_optnew, "soft", NULL, NULL) == 0)
951 args.flags |= NFSMNT_SOFT;
952 if (vfs_getopt(mp->mnt_optnew, "hard", NULL, NULL) == 0)
953 args.flags &= ~NFSMNT_SOFT;
954 if (vfs_getopt(mp->mnt_optnew, "mntudp", NULL, NULL) == 0)
955 args.sotype = SOCK_DGRAM;
956 if (vfs_getopt(mp->mnt_optnew, "udp", NULL, NULL) == 0)
957 args.sotype = SOCK_DGRAM;
958 if (vfs_getopt(mp->mnt_optnew, "tcp", NULL, NULL) == 0)
959 args.sotype = SOCK_STREAM;
960 if (vfs_getopt(mp->mnt_optnew, "nfsv3", NULL, NULL) == 0)
961 args.flags |= NFSMNT_NFSV3;
962 if (vfs_getopt(mp->mnt_optnew, "nfsv4", NULL, NULL) == 0) {
963 args.flags |= NFSMNT_NFSV4;
964 args.sotype = SOCK_STREAM;
966 if (vfs_getopt(mp->mnt_optnew, "allgssname", NULL, NULL) == 0)
967 args.flags |= NFSMNT_ALLGSSNAME;
968 if (vfs_getopt(mp->mnt_optnew, "nocto", NULL, NULL) == 0)
969 args.flags |= NFSMNT_NOCTO;
970 if (vfs_getopt(mp->mnt_optnew, "noncontigwr", NULL, NULL) == 0)
971 args.flags |= NFSMNT_NONCONTIGWR;
972 if (vfs_getopt(mp->mnt_optnew, "pnfs", NULL, NULL) == 0)
973 args.flags |= NFSMNT_PNFS;
974 if (vfs_getopt(mp->mnt_optnew, "readdirsize", (void **)&opt, NULL) == 0) {
976 vfs_mount_error(mp, "illegal readdirsize");
980 ret = sscanf(opt, "%d", &args.readdirsize);
981 if (ret != 1 || args.readdirsize <= 0) {
982 vfs_mount_error(mp, "illegal readdirsize: %s",
987 args.flags |= NFSMNT_READDIRSIZE;
989 if (vfs_getopt(mp->mnt_optnew, "readahead", (void **)&opt, NULL) == 0) {
991 vfs_mount_error(mp, "illegal readahead");
995 ret = sscanf(opt, "%d", &args.readahead);
996 if (ret != 1 || args.readahead <= 0) {
997 vfs_mount_error(mp, "illegal readahead: %s",
1002 args.flags |= NFSMNT_READAHEAD;
1004 if (vfs_getopt(mp->mnt_optnew, "wsize", (void **)&opt, NULL) == 0) {
1006 vfs_mount_error(mp, "illegal wsize");
1010 ret = sscanf(opt, "%d", &args.wsize);
1011 if (ret != 1 || args.wsize <= 0) {
1012 vfs_mount_error(mp, "illegal wsize: %s",
1017 args.flags |= NFSMNT_WSIZE;
1019 if (vfs_getopt(mp->mnt_optnew, "rsize", (void **)&opt, NULL) == 0) {
1021 vfs_mount_error(mp, "illegal rsize");
1025 ret = sscanf(opt, "%d", &args.rsize);
1026 if (ret != 1 || args.rsize <= 0) {
1027 vfs_mount_error(mp, "illegal wsize: %s",
1032 args.flags |= NFSMNT_RSIZE;
1034 if (vfs_getopt(mp->mnt_optnew, "retrans", (void **)&opt, NULL) == 0) {
1036 vfs_mount_error(mp, "illegal retrans");
1040 ret = sscanf(opt, "%d", &args.retrans);
1041 if (ret != 1 || args.retrans <= 0) {
1042 vfs_mount_error(mp, "illegal retrans: %s",
1047 args.flags |= NFSMNT_RETRANS;
1049 if (vfs_getopt(mp->mnt_optnew, "actimeo", (void **)&opt, NULL) == 0) {
1050 ret = sscanf(opt, "%d", &args.acregmin);
1051 if (ret != 1 || args.acregmin < 0) {
1052 vfs_mount_error(mp, "illegal actimeo: %s",
1057 args.acdirmin = args.acdirmax = args.acregmax = args.acregmin;
1058 args.flags |= NFSMNT_ACDIRMIN | NFSMNT_ACDIRMAX |
1059 NFSMNT_ACREGMIN | NFSMNT_ACREGMAX;
1061 if (vfs_getopt(mp->mnt_optnew, "acregmin", (void **)&opt, NULL) == 0) {
1062 ret = sscanf(opt, "%d", &args.acregmin);
1063 if (ret != 1 || args.acregmin < 0) {
1064 vfs_mount_error(mp, "illegal acregmin: %s",
1069 args.flags |= NFSMNT_ACREGMIN;
1071 if (vfs_getopt(mp->mnt_optnew, "acregmax", (void **)&opt, NULL) == 0) {
1072 ret = sscanf(opt, "%d", &args.acregmax);
1073 if (ret != 1 || args.acregmax < 0) {
1074 vfs_mount_error(mp, "illegal acregmax: %s",
1079 args.flags |= NFSMNT_ACREGMAX;
1081 if (vfs_getopt(mp->mnt_optnew, "acdirmin", (void **)&opt, NULL) == 0) {
1082 ret = sscanf(opt, "%d", &args.acdirmin);
1083 if (ret != 1 || args.acdirmin < 0) {
1084 vfs_mount_error(mp, "illegal acdirmin: %s",
1089 args.flags |= NFSMNT_ACDIRMIN;
1091 if (vfs_getopt(mp->mnt_optnew, "acdirmax", (void **)&opt, NULL) == 0) {
1092 ret = sscanf(opt, "%d", &args.acdirmax);
1093 if (ret != 1 || args.acdirmax < 0) {
1094 vfs_mount_error(mp, "illegal acdirmax: %s",
1099 args.flags |= NFSMNT_ACDIRMAX;
1101 if (vfs_getopt(mp->mnt_optnew, "wcommitsize", (void **)&opt, NULL) == 0) {
1102 ret = sscanf(opt, "%d", &args.wcommitsize);
1103 if (ret != 1 || args.wcommitsize < 0) {
1104 vfs_mount_error(mp, "illegal wcommitsize: %s", opt);
1108 args.flags |= NFSMNT_WCOMMITSIZE;
1110 if (vfs_getopt(mp->mnt_optnew, "timeo", (void **)&opt, NULL) == 0) {
1111 ret = sscanf(opt, "%d", &args.timeo);
1112 if (ret != 1 || args.timeo <= 0) {
1113 vfs_mount_error(mp, "illegal timeo: %s",
1118 args.flags |= NFSMNT_TIMEO;
1120 if (vfs_getopt(mp->mnt_optnew, "timeout", (void **)&opt, NULL) == 0) {
1121 ret = sscanf(opt, "%d", &args.timeo);
1122 if (ret != 1 || args.timeo <= 0) {
1123 vfs_mount_error(mp, "illegal timeout: %s",
1128 args.flags |= NFSMNT_TIMEO;
1130 if (vfs_getopt(mp->mnt_optnew, "nametimeo", (void **)&opt, NULL) == 0) {
1131 ret = sscanf(opt, "%d", &nametimeo);
1132 if (ret != 1 || nametimeo < 0) {
1133 vfs_mount_error(mp, "illegal nametimeo: %s", opt);
1138 if (vfs_getopt(mp->mnt_optnew, "negnametimeo", (void **)&opt, NULL)
1140 ret = sscanf(opt, "%d", &negnametimeo);
1141 if (ret != 1 || negnametimeo < 0) {
1142 vfs_mount_error(mp, "illegal negnametimeo: %s",
1148 if (vfs_getopt(mp->mnt_optnew, "minorversion", (void **)&opt, NULL) ==
1150 ret = sscanf(opt, "%d", &minvers);
1151 if (ret != 1 || minvers < 0 || minvers > 1 ||
1152 (args.flags & NFSMNT_NFSV4) == 0) {
1153 vfs_mount_error(mp, "illegal minorversion: %s", opt);
1158 if (vfs_getopt(mp->mnt_optnew, "sec",
1159 (void **) &secname, NULL) == 0)
1160 nfs_sec_name(secname, &args.flags);
1162 if (mp->mnt_flag & MNT_UPDATE) {
1163 struct nfsmount *nmp = VFSTONFS(mp);
1171 * If a change from TCP->UDP is done and there are thread(s)
1172 * that have I/O RPC(s) in progress with a transfer size
1173 * greater than NFS_MAXDGRAMDATA, those thread(s) will be
1174 * hung, retrying the RPC(s) forever. Usually these threads
1175 * will be seen doing an uninterruptible sleep on wait channel
1178 if (args.sotype == SOCK_DGRAM && nmp->nm_sotype == SOCK_STREAM)
1179 tprintf(td->td_proc, LOG_WARNING,
1180 "Warning: mount -u that changes TCP->UDP can result in hung threads\n");
1183 * When doing an update, we can't change version,
1184 * security, switch lockd strategies or change cookie
1187 args.flags = (args.flags &
1193 NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/)) |
1200 NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/));
1201 nfs_decode_args(mp, nmp, &args, NULL, td->td_ucred, td);
1206 * Make the nfs_ip_paranoia sysctl serve as the default connection
1207 * or no-connection mode for those protocols that support
1208 * no-connection mode (the flag will be cleared later for protocols
1209 * that do not support no-connection mode). This will allow a client
1210 * to receive replies from a different IP then the request was
1211 * sent to. Note: default value for nfs_ip_paranoia is 1 (paranoid),
1214 if (nfs_ip_paranoia == 0)
1215 args.flags |= NFSMNT_NOCONN;
1217 if (has_nfs_args_opt != 0) {
1219 * In the 'nfs_args' case, the pointers in the args
1220 * structure are in userland - we copy them in here.
1222 if (args.fhsize < 0 || args.fhsize > NFSX_V3FHMAX) {
1223 vfs_mount_error(mp, "Bad file handle");
1227 error = copyin((caddr_t)args.fh, (caddr_t)nfh,
1231 error = copyinstr(args.hostname, hst, MNAMELEN - 1, &hstlen);
1234 bzero(&hst[hstlen], MNAMELEN - hstlen);
1235 args.hostname = hst;
1236 /* getsockaddr() call must be after above copyin() calls */
1237 error = getsockaddr(&nam, (caddr_t)args.addr,
1241 } else if (nfs_mount_parse_from(mp->mnt_optnew,
1242 &args.hostname, (struct sockaddr_in **)&nam, dirpath,
1243 sizeof(dirpath), &dirlen) == 0) {
1244 has_nfs_from_opt = 1;
1245 bcopy(args.hostname, hst, MNAMELEN);
1246 hst[MNAMELEN - 1] = '\0';
1249 * This only works with NFSv4 for now.
1252 args.flags |= NFSMNT_NFSV4;
1253 args.sotype = SOCK_STREAM;
1255 if (vfs_getopt(mp->mnt_optnew, "fh", (void **)&args.fh,
1256 &args.fhsize) == 0) {
1257 if (args.fhsize < 0 || args.fhsize > NFSX_FHMAX) {
1258 vfs_mount_error(mp, "Bad file handle");
1262 bcopy(args.fh, nfh, args.fhsize);
1266 (void) vfs_getopt(mp->mnt_optnew, "hostname",
1267 (void **)&args.hostname, &len);
1268 if (args.hostname == NULL) {
1269 vfs_mount_error(mp, "Invalid hostname");
1273 if (len >= MNAMELEN) {
1274 vfs_mount_error(mp, "Hostname too long");
1278 bcopy(args.hostname, hst, len);
1282 if (vfs_getopt(mp->mnt_optnew, "principal", (void **)&name, NULL) == 0)
1283 strlcpy(srvkrbname, name, sizeof (srvkrbname));
1285 snprintf(srvkrbname, sizeof (srvkrbname), "nfs@%s", hst);
1286 cp = strchr(srvkrbname, ':');
1290 srvkrbnamelen = strlen(srvkrbname);
1292 if (vfs_getopt(mp->mnt_optnew, "gssname", (void **)&name, NULL) == 0)
1293 strlcpy(krbname, name, sizeof (krbname));
1296 krbnamelen = strlen(krbname);
1298 if (has_nfs_from_opt == 0) {
1299 if (vfs_getopt(mp->mnt_optnew,
1300 "dirpath", (void **)&name, NULL) == 0)
1301 strlcpy(dirpath, name, sizeof (dirpath));
1304 dirlen = strlen(dirpath);
1307 if (has_nfs_args_opt == 0 && has_nfs_from_opt == 0) {
1308 if (vfs_getopt(mp->mnt_optnew, "addr",
1309 (void **)&args.addr, &args.addrlen) == 0) {
1310 if (args.addrlen > SOCK_MAXADDRLEN) {
1311 error = ENAMETOOLONG;
1314 nam = malloc(args.addrlen, M_SONAME, M_WAITOK);
1315 bcopy(args.addr, nam, args.addrlen);
1316 nam->sa_len = args.addrlen;
1318 vfs_mount_error(mp, "No server address");
1325 error = mountnfs(&args, mp, nam, hst, krbname, krbnamelen, dirpath,
1326 dirlen, srvkrbname, srvkrbnamelen, &vp, td->td_ucred, td,
1327 nametimeo, negnametimeo, minvers);
1331 mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED | MNTK_NO_IOPF |
1333 if ((VFSTONFS(mp)->nm_flag & NFSMNT_NFSV4) != 0)
1334 mp->mnt_kern_flag |= MNTK_NULL_NOCACHE;
1346 * It seems a bit dumb to copyinstr() the host and path here and then
1347 * bcopy() them in mountnfs(), but I wanted to detect errors before
1348 * doing the getsockaddr() call because getsockaddr() allocates an mbuf and
1349 * an error after that means that I have to release the mbuf.
1353 nfs_cmount(struct mntarg *ma, void *data, uint64_t flags)
1356 struct nfs_args args;
1358 error = copyin(data, &args, sizeof (struct nfs_args));
1362 ma = mount_arg(ma, "nfs_args", &args, sizeof args);
1364 error = kernel_mount(ma, flags);
1369 * Common code for mount and mountroot
1372 mountnfs(struct nfs_args *argp, struct mount *mp, struct sockaddr *nam,
1373 char *hst, u_char *krbname, int krbnamelen, u_char *dirpath, int dirlen,
1374 u_char *srvkrbname, int srvkrbnamelen, struct vnode **vpp,
1375 struct ucred *cred, struct thread *td, int nametimeo, int negnametimeo,
1378 struct nfsmount *nmp;
1380 int error, trycnt, ret;
1381 struct nfsvattr nfsva;
1382 struct nfsclclient *clp;
1383 struct nfsclds *dsp, *tdsp;
1385 static u_int64_t clval = 0;
1387 NFSCL_DEBUG(3, "in mnt\n");
1389 if (mp->mnt_flag & MNT_UPDATE) {
1391 printf("%s: MNT_UPDATE is no longer handled here\n", __func__);
1392 FREE(nam, M_SONAME);
1395 MALLOC(nmp, struct nfsmount *, sizeof (struct nfsmount) +
1396 krbnamelen + dirlen + srvkrbnamelen + 2,
1397 M_NEWNFSMNT, M_WAITOK | M_ZERO);
1398 TAILQ_INIT(&nmp->nm_bufq);
1399 TAILQ_INIT(&nmp->nm_sess);
1401 clval = (u_int64_t)nfsboottime.tv_sec;
1402 nmp->nm_clval = clval++;
1403 nmp->nm_krbnamelen = krbnamelen;
1404 nmp->nm_dirpathlen = dirlen;
1405 nmp->nm_srvkrbnamelen = srvkrbnamelen;
1406 if (td->td_ucred->cr_uid != (uid_t)0) {
1408 * nm_uid is used to get KerberosV credentials for
1409 * the nfsv4 state handling operations if there is
1410 * no host based principal set. Use the uid of
1411 * this user if not root, since they are doing the
1412 * mount. I don't think setting this for root will
1413 * work, since root normally does not have user
1414 * credentials in a credentials cache.
1416 nmp->nm_uid = td->td_ucred->cr_uid;
1419 * Just set to -1, so it won't be used.
1421 nmp->nm_uid = (uid_t)-1;
1424 /* Copy and null terminate all the names */
1425 if (nmp->nm_krbnamelen > 0) {
1426 bcopy(krbname, nmp->nm_krbname, nmp->nm_krbnamelen);
1427 nmp->nm_name[nmp->nm_krbnamelen] = '\0';
1429 if (nmp->nm_dirpathlen > 0) {
1430 bcopy(dirpath, NFSMNT_DIRPATH(nmp),
1431 nmp->nm_dirpathlen);
1432 nmp->nm_name[nmp->nm_krbnamelen + nmp->nm_dirpathlen
1435 if (nmp->nm_srvkrbnamelen > 0) {
1436 bcopy(srvkrbname, NFSMNT_SRVKRBNAME(nmp),
1437 nmp->nm_srvkrbnamelen);
1438 nmp->nm_name[nmp->nm_krbnamelen + nmp->nm_dirpathlen
1439 + nmp->nm_srvkrbnamelen + 2] = '\0';
1441 nmp->nm_sockreq.nr_cred = crhold(cred);
1442 mtx_init(&nmp->nm_sockreq.nr_mtx, "nfssock", NULL, MTX_DEF);
1444 nmp->nm_getinfo = nfs_getnlminfo;
1445 nmp->nm_vinvalbuf = ncl_vinvalbuf;
1448 nmp->nm_mountp = mp;
1449 mtx_init(&nmp->nm_mtx, "NFSmount lock", NULL, MTX_DEF | MTX_DUPOK);
1452 * Since nfs_decode_args() might optionally set them, these
1453 * need to be set to defaults before the call, so that the
1454 * optional settings aren't overwritten.
1456 nmp->nm_nametimeo = nametimeo;
1457 nmp->nm_negnametimeo = negnametimeo;
1458 nmp->nm_timeo = NFS_TIMEO;
1459 nmp->nm_retry = NFS_RETRANS;
1460 nmp->nm_readahead = NFS_DEFRAHEAD;
1462 /* This is empirical approximation of sqrt(hibufspace) * 256. */
1463 nmp->nm_wcommitsize = NFS_MAXBSIZE / 256;
1464 while ((long)nmp->nm_wcommitsize * nmp->nm_wcommitsize < hibufspace)
1465 nmp->nm_wcommitsize *= 2;
1466 nmp->nm_wcommitsize *= 256;
1468 if ((argp->flags & NFSMNT_NFSV4) != 0)
1469 nmp->nm_minorvers = minvers;
1471 nmp->nm_minorvers = 0;
1473 nfs_decode_args(mp, nmp, argp, hst, cred, td);
1476 * V2 can only handle 32 bit filesizes. A 4GB-1 limit may be too
1477 * high, depending on whether we end up with negative offsets in
1478 * the client or server somewhere. 2GB-1 may be safer.
1480 * For V3, ncl_fsinfo will adjust this as necessary. Assume maximum
1481 * that we can handle until we find out otherwise.
1483 if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0)
1484 nmp->nm_maxfilesize = 0xffffffffLL;
1486 nmp->nm_maxfilesize = OFF_MAX;
1488 if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0) {
1489 nmp->nm_wsize = NFS_WSIZE;
1490 nmp->nm_rsize = NFS_RSIZE;
1491 nmp->nm_readdirsize = NFS_READDIRSIZE;
1493 nmp->nm_numgrps = NFS_MAXGRPS;
1494 nmp->nm_tprintf_delay = nfs_tprintf_delay;
1495 if (nmp->nm_tprintf_delay < 0)
1496 nmp->nm_tprintf_delay = 0;
1497 nmp->nm_tprintf_initial_delay = nfs_tprintf_initial_delay;
1498 if (nmp->nm_tprintf_initial_delay < 0)
1499 nmp->nm_tprintf_initial_delay = 0;
1500 nmp->nm_fhsize = argp->fhsize;
1501 if (nmp->nm_fhsize > 0)
1502 bcopy((caddr_t)argp->fh, (caddr_t)nmp->nm_fh, argp->fhsize);
1503 bcopy(hst, mp->mnt_stat.f_mntfromname, MNAMELEN);
1505 /* Set up the sockets and per-host congestion */
1506 nmp->nm_sotype = argp->sotype;
1507 nmp->nm_soproto = argp->proto;
1508 nmp->nm_sockreq.nr_prog = NFS_PROG;
1509 if ((argp->flags & NFSMNT_NFSV4))
1510 nmp->nm_sockreq.nr_vers = NFS_VER4;
1511 else if ((argp->flags & NFSMNT_NFSV3))
1512 nmp->nm_sockreq.nr_vers = NFS_VER3;
1514 nmp->nm_sockreq.nr_vers = NFS_VER2;
1517 if ((error = newnfs_connect(nmp, &nmp->nm_sockreq, cred, td, 0)))
1519 /* For NFSv4.1, get the clientid now. */
1520 if (nmp->nm_minorvers > 0) {
1521 NFSCL_DEBUG(3, "at getcl\n");
1522 error = nfscl_getcl(mp, cred, td, 0, &clp);
1523 NFSCL_DEBUG(3, "aft getcl=%d\n", error);
1528 if (nmp->nm_fhsize == 0 && (nmp->nm_flag & NFSMNT_NFSV4) &&
1529 nmp->nm_dirpathlen > 0) {
1530 NFSCL_DEBUG(3, "in dirp\n");
1532 * If the fhsize on the mount point == 0 for V4, the mount
1533 * path needs to be looked up.
1537 error = nfsrpc_getdirpath(nmp, NFSMNT_DIRPATH(nmp),
1539 NFSCL_DEBUG(3, "aft dirp=%d\n", error);
1541 (void) nfs_catnap(PZERO, error, "nfsgetdirp");
1542 } while (error && --trycnt > 0);
1544 error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
1550 * A reference count is needed on the nfsnode representing the
1551 * remote root. If this object is not persistent, then backward
1552 * traversals of the mount point (i.e. "..") will not work if
1553 * the nfsnode gets flushed out of the cache. Ufs does not have
1554 * this problem, because one can identify root inodes by their
1555 * number == UFS_ROOTINO (2).
1557 if (nmp->nm_fhsize > 0) {
1559 * Set f_iosize to NFS_DIRBLKSIZ so that bo_bsize gets set
1560 * non-zero for the root vnode. f_iosize will be set correctly
1561 * by nfs_statfs() before any I/O occurs.
1563 mp->mnt_stat.f_iosize = NFS_DIRBLKSIZ;
1564 error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np,
1571 * Get file attributes and transfer parameters for the
1572 * mountpoint. This has the side effect of filling in
1573 * (*vpp)->v_type with the correct value.
1575 ret = nfsrpc_getattrnovp(nmp, nmp->nm_fh, nmp->nm_fhsize, 1,
1576 cred, td, &nfsva, NULL, &lease);
1579 * Just set default values to get things going.
1581 NFSBZERO((caddr_t)&nfsva, sizeof (struct nfsvattr));
1582 nfsva.na_vattr.va_type = VDIR;
1583 nfsva.na_vattr.va_mode = 0777;
1584 nfsva.na_vattr.va_nlink = 100;
1585 nfsva.na_vattr.va_uid = (uid_t)0;
1586 nfsva.na_vattr.va_gid = (gid_t)0;
1587 nfsva.na_vattr.va_fileid = 2;
1588 nfsva.na_vattr.va_gen = 1;
1589 nfsva.na_vattr.va_blocksize = NFS_FABLKSIZE;
1590 nfsva.na_vattr.va_size = 512 * 1024;
1593 (void) nfscl_loadattrcache(vpp, &nfsva, NULL, NULL, 0, 1);
1594 if (nmp->nm_minorvers > 0) {
1595 NFSCL_DEBUG(3, "lease=%d\n", (int)lease);
1597 clp->nfsc_renew = NFSCL_RENEW(lease);
1598 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew;
1599 clp->nfsc_clientidrev++;
1600 if (clp->nfsc_clientidrev == 0)
1601 clp->nfsc_clientidrev++;
1604 * Mount will succeed, so the renew thread can be
1607 nfscl_start_renewthread(clp);
1608 nfscl_clientrelease(clp);
1610 if (argp->flags & NFSMNT_NFSV3)
1611 ncl_fsinfo(nmp, *vpp, cred, td);
1613 /* Mark if the mount point supports NFSv4 ACLs. */
1614 if ((argp->flags & NFSMNT_NFSV4) != 0 && nfsrv_useacl != 0 &&
1616 NFSISSET_ATTRBIT(&nfsva.na_suppattr, NFSATTRBIT_ACL)) {
1618 mp->mnt_flag |= MNT_NFS4ACLS;
1623 * Lose the lock but keep the ref.
1625 NFSVOPUNLOCK(*vpp, 0);
1632 nfscl_clientrelease(clp);
1633 newnfs_disconnect(&nmp->nm_sockreq);
1634 crfree(nmp->nm_sockreq.nr_cred);
1635 if (nmp->nm_sockreq.nr_auth != NULL)
1636 AUTH_DESTROY(nmp->nm_sockreq.nr_auth);
1637 mtx_destroy(&nmp->nm_sockreq.nr_mtx);
1638 mtx_destroy(&nmp->nm_mtx);
1639 if (nmp->nm_clp != NULL) {
1641 LIST_REMOVE(nmp->nm_clp, nfsc_list);
1643 free(nmp->nm_clp, M_NFSCLCLIENT);
1645 TAILQ_FOREACH_SAFE(dsp, &nmp->nm_sess, nfsclds_list, tdsp)
1646 nfscl_freenfsclds(dsp);
1647 FREE(nmp, M_NEWNFSMNT);
1648 FREE(nam, M_SONAME);
1653 * unmount system call
1656 nfs_unmount(struct mount *mp, int mntflags)
1659 struct nfsmount *nmp;
1660 int error, flags = 0, i, trycnt = 0;
1661 struct nfsclds *dsp, *tdsp;
1665 if (mntflags & MNT_FORCE)
1666 flags |= FORCECLOSE;
1669 * Goes something like this..
1670 * - Call vflush() to clear out vnodes for this filesystem
1671 * - Close the socket
1672 * - Free up the data structures
1674 /* In the forced case, cancel any outstanding requests. */
1675 if (mntflags & MNT_FORCE) {
1676 error = newnfs_nmcancelreqs(nmp);
1679 /* For a forced close, get rid of the renew thread now */
1680 nfscl_umount(nmp, td);
1682 /* We hold 1 extra ref on the root vnode; see comment in mountnfs(). */
1684 error = vflush(mp, 1, flags, td);
1685 if ((mntflags & MNT_FORCE) && error != 0 && ++trycnt < 30)
1686 (void) nfs_catnap(PSOCK, error, "newndm");
1687 } while ((mntflags & MNT_FORCE) && error != 0 && trycnt < 30);
1692 * We are now committed to the unmount.
1694 if ((mntflags & MNT_FORCE) == 0)
1695 nfscl_umount(nmp, td);
1696 /* Make sure no nfsiods are assigned to this mount. */
1697 mtx_lock(&ncl_iod_mutex);
1698 for (i = 0; i < NFS_MAXASYNCDAEMON; i++)
1699 if (ncl_iodmount[i] == nmp) {
1700 ncl_iodwant[i] = NFSIOD_AVAILABLE;
1701 ncl_iodmount[i] = NULL;
1703 mtx_unlock(&ncl_iod_mutex);
1704 newnfs_disconnect(&nmp->nm_sockreq);
1705 crfree(nmp->nm_sockreq.nr_cred);
1706 FREE(nmp->nm_nam, M_SONAME);
1707 if (nmp->nm_sockreq.nr_auth != NULL)
1708 AUTH_DESTROY(nmp->nm_sockreq.nr_auth);
1709 mtx_destroy(&nmp->nm_sockreq.nr_mtx);
1710 mtx_destroy(&nmp->nm_mtx);
1711 TAILQ_FOREACH_SAFE(dsp, &nmp->nm_sess, nfsclds_list, tdsp)
1712 nfscl_freenfsclds(dsp);
1713 FREE(nmp, M_NEWNFSMNT);
1719 * Return root of a filesystem
1722 nfs_root(struct mount *mp, int flags, struct vnode **vpp)
1725 struct nfsmount *nmp;
1730 error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np, flags);
1735 * Get transfer parameters and attributes for root vnode once.
1737 mtx_lock(&nmp->nm_mtx);
1738 if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp)) {
1739 mtx_unlock(&nmp->nm_mtx);
1740 ncl_fsinfo(nmp, vp, curthread->td_ucred, curthread);
1742 mtx_unlock(&nmp->nm_mtx);
1743 if (vp->v_type == VNON)
1745 vp->v_vflag |= VV_ROOT;
1751 * Flush out the buffer cache
1755 nfs_sync(struct mount *mp, int waitfor)
1757 struct vnode *vp, *mvp;
1759 int error, allerror = 0;
1765 * If a forced dismount is in progress, return from here so that
1766 * the umount(2) syscall doesn't get stuck in VFS_SYNC() before
1767 * calling VFS_UNMOUNT().
1769 if ((mp->mnt_kern_flag & MNTK_UNMOUNTF) != 0) {
1776 * Force stale buffer cache information to be flushed.
1779 MNT_VNODE_FOREACH_ALL(vp, mp, mvp) {
1780 /* XXX Racy bv_cnt check. */
1781 if (NFSVOPISLOCKED(vp) || vp->v_bufobj.bo_dirty.bv_cnt == 0 ||
1782 waitfor == MNT_LAZY) {
1786 if (vget(vp, LK_EXCLUSIVE | LK_INTERLOCK, td)) {
1787 MNT_VNODE_FOREACH_ALL_ABORT(mp, mvp);
1790 error = VOP_FSYNC(vp, waitfor, td);
1793 NFSVOPUNLOCK(vp, 0);
1800 nfs_sysctl(struct mount *mp, fsctlop_t op, struct sysctl_req *req)
1802 struct nfsmount *nmp = VFSTONFS(mp);
1806 bzero(&vq, sizeof(vq));
1809 case VFS_CTL_NOLOCKS:
1810 val = (nmp->nm_flag & NFSMNT_NOLOCKS) ? 1 : 0;
1811 if (req->oldptr != NULL) {
1812 error = SYSCTL_OUT(req, &val, sizeof(val));
1816 if (req->newptr != NULL) {
1817 error = SYSCTL_IN(req, &val, sizeof(val));
1821 nmp->nm_flag |= NFSMNT_NOLOCKS;
1823 nmp->nm_flag &= ~NFSMNT_NOLOCKS;
1828 mtx_lock(&nmp->nm_mtx);
1829 if (nmp->nm_state & NFSSTA_TIMEO)
1830 vq.vq_flags |= VQ_NOTRESP;
1831 mtx_unlock(&nmp->nm_mtx);
1833 if (!(nmp->nm_flag & NFSMNT_NOLOCKS) &&
1834 (nmp->nm_state & NFSSTA_LOCKTIMEO))
1835 vq.vq_flags |= VQ_NOTRESPLOCK;
1837 error = SYSCTL_OUT(req, &vq, sizeof(vq));
1840 if (req->oldptr != NULL) {
1841 error = SYSCTL_OUT(req, &nmp->nm_tprintf_initial_delay,
1842 sizeof(nmp->nm_tprintf_initial_delay));
1846 if (req->newptr != NULL) {
1847 error = vfs_suser(mp, req->td);
1850 error = SYSCTL_IN(req, &nmp->nm_tprintf_initial_delay,
1851 sizeof(nmp->nm_tprintf_initial_delay));
1854 if (nmp->nm_tprintf_initial_delay < 0)
1855 nmp->nm_tprintf_initial_delay = 0;
1865 * Purge any RPCs in progress, so that they will all return errors.
1866 * This allows dounmount() to continue as far as VFS_UNMOUNT() for a
1870 nfs_purge(struct mount *mp)
1872 struct nfsmount *nmp = VFSTONFS(mp);
1874 newnfs_nmcancelreqs(nmp);
1878 * Extract the information needed by the nlm from the nfs vnode.
1881 nfs_getnlminfo(struct vnode *vp, uint8_t *fhp, size_t *fhlenp,
1882 struct sockaddr_storage *sp, int *is_v3p, off_t *sizep,
1883 struct timeval *timeop)
1885 struct nfsmount *nmp;
1886 struct nfsnode *np = VTONFS(vp);
1888 nmp = VFSTONFS(vp->v_mount);
1890 *fhlenp = (size_t)np->n_fhp->nfh_len;
1892 bcopy(np->n_fhp->nfh_fh, fhp, np->n_fhp->nfh_len);
1894 bcopy(nmp->nm_nam, sp, min(nmp->nm_nam->sa_len, sizeof(*sp)));
1896 *is_v3p = NFS_ISV3(vp);
1898 *sizep = np->n_size;
1899 if (timeop != NULL) {
1900 timeop->tv_sec = nmp->nm_timeo / NFS_HZ;
1901 timeop->tv_usec = (nmp->nm_timeo % NFS_HZ) * (1000000 / NFS_HZ);
1906 * This function prints out an option name, based on the conditional
1909 static __inline void nfscl_printopt(struct nfsmount *nmp, int testval,
1910 char *opt, char **buf, size_t *blen)
1914 if (testval != 0 && *blen > strlen(opt)) {
1915 len = snprintf(*buf, *blen, "%s", opt);
1916 if (len != strlen(opt))
1924 * This function printf out an options integer value.
1926 static __inline void nfscl_printoptval(struct nfsmount *nmp, int optval,
1927 char *opt, char **buf, size_t *blen)
1931 if (*blen > strlen(opt) + 1) {
1932 /* Could result in truncated output string. */
1933 len = snprintf(*buf, *blen, "%s=%d", opt, optval);
1942 * Load the option flags and values into the buffer.
1944 void nfscl_retopts(struct nfsmount *nmp, char *buffer, size_t buflen)
1951 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NFSV4) != 0, "nfsv4", &buf,
1953 if ((nmp->nm_flag & NFSMNT_NFSV4) != 0) {
1954 nfscl_printoptval(nmp, nmp->nm_minorvers, ",minorversion", &buf,
1956 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_PNFS) != 0, ",pnfs",
1959 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NFSV3) != 0, "nfsv3", &buf,
1961 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0,
1962 "nfsv2", &buf, &blen);
1963 nfscl_printopt(nmp, nmp->nm_sotype == SOCK_STREAM, ",tcp", &buf, &blen);
1964 nfscl_printopt(nmp, nmp->nm_sotype != SOCK_STREAM, ",udp", &buf, &blen);
1965 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_RESVPORT) != 0, ",resvport",
1967 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCONN) != 0, ",noconn",
1969 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_SOFT) == 0, ",hard", &buf,
1971 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_SOFT) != 0, ",soft", &buf,
1973 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_INT) != 0, ",intr", &buf,
1975 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCTO) == 0, ",cto", &buf,
1977 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCTO) != 0, ",nocto", &buf,
1979 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NONCONTIGWR) != 0,
1980 ",noncontigwr", &buf, &blen);
1981 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NOLOCKD | NFSMNT_NFSV4)) ==
1982 0, ",lockd", &buf, &blen);
1983 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NOLOCKD | NFSMNT_NFSV4)) ==
1984 NFSMNT_NOLOCKD, ",nolockd", &buf, &blen);
1985 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_RDIRPLUS) != 0, ",rdirplus",
1987 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_KERB) == 0, ",sec=sys",
1989 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
1990 NFSMNT_PRIVACY)) == NFSMNT_KERB, ",sec=krb5", &buf, &blen);
1991 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
1992 NFSMNT_PRIVACY)) == (NFSMNT_KERB | NFSMNT_INTEGRITY), ",sec=krb5i",
1994 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
1995 NFSMNT_PRIVACY)) == (NFSMNT_KERB | NFSMNT_PRIVACY), ",sec=krb5p",
1997 nfscl_printoptval(nmp, nmp->nm_acdirmin, ",acdirmin", &buf, &blen);
1998 nfscl_printoptval(nmp, nmp->nm_acdirmax, ",acdirmax", &buf, &blen);
1999 nfscl_printoptval(nmp, nmp->nm_acregmin, ",acregmin", &buf, &blen);
2000 nfscl_printoptval(nmp, nmp->nm_acregmax, ",acregmax", &buf, &blen);
2001 nfscl_printoptval(nmp, nmp->nm_nametimeo, ",nametimeo", &buf, &blen);
2002 nfscl_printoptval(nmp, nmp->nm_negnametimeo, ",negnametimeo", &buf,
2004 nfscl_printoptval(nmp, nmp->nm_rsize, ",rsize", &buf, &blen);
2005 nfscl_printoptval(nmp, nmp->nm_wsize, ",wsize", &buf, &blen);
2006 nfscl_printoptval(nmp, nmp->nm_readdirsize, ",readdirsize", &buf,
2008 nfscl_printoptval(nmp, nmp->nm_readahead, ",readahead", &buf, &blen);
2009 nfscl_printoptval(nmp, nmp->nm_wcommitsize, ",wcommitsize", &buf,
2011 nfscl_printoptval(nmp, nmp->nm_timeo, ",timeout", &buf, &blen);
2012 nfscl_printoptval(nmp, nmp->nm_retry, ",retrans", &buf, &blen);