2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1989, 1993, 1995
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Rick Macklem at The University of Guelph.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * from nfs_vfsops.c 8.12 (Berkeley) 5/20/95
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
41 #include "opt_bootp.h"
42 #include "opt_nfsroot.h"
44 #include <sys/param.h>
45 #include <sys/systm.h>
46 #include <sys/kernel.h>
49 #include <sys/clock.h>
51 #include <sys/limits.h>
53 #include <sys/malloc.h>
55 #include <sys/module.h>
56 #include <sys/mount.h>
58 #include <sys/socket.h>
59 #include <sys/socketvar.h>
60 #include <sys/sockio.h>
61 #include <sys/sysctl.h>
62 #include <sys/vnode.h>
63 #include <sys/signalvar.h>
66 #include <vm/vm_extern.h>
70 #include <net/route.h>
71 #include <netinet/in.h>
73 #include <fs/nfs/nfsport.h>
74 #include <fs/nfsclient/nfsnode.h>
75 #include <fs/nfsclient/nfsmount.h>
76 #include <fs/nfsclient/nfs.h>
77 #include <nfs/nfsdiskless.h>
79 FEATURE(nfscl, "NFSv4 client");
81 extern int nfscl_ticks;
82 extern struct timeval nfsboottime;
83 extern int nfsrv_useacl;
84 extern int nfscl_debuglevel;
85 extern enum nfsiod_state ncl_iodwant[NFS_MAXASYNCDAEMON];
86 extern struct nfsmount *ncl_iodmount[NFS_MAXASYNCDAEMON];
87 extern struct mtx ncl_iod_mutex;
89 extern struct mtx nfsrv_dslock_mtx;
91 MALLOC_DEFINE(M_NEWNFSREQ, "newnfsclient_req", "NFS request header");
92 MALLOC_DEFINE(M_NEWNFSMNT, "newnfsmnt", "NFS mount struct");
94 SYSCTL_DECL(_vfs_nfs);
95 static int nfs_ip_paranoia = 1;
96 SYSCTL_INT(_vfs_nfs, OID_AUTO, nfs_ip_paranoia, CTLFLAG_RW,
97 &nfs_ip_paranoia, 0, "");
98 static int nfs_tprintf_initial_delay = NFS_TPRINTF_INITIAL_DELAY;
99 SYSCTL_INT(_vfs_nfs, NFS_TPRINTF_INITIAL_DELAY,
100 downdelayinitial, CTLFLAG_RW, &nfs_tprintf_initial_delay, 0, "");
101 /* how long between console messages "nfs server foo not responding" */
102 static int nfs_tprintf_delay = NFS_TPRINTF_DELAY;
103 SYSCTL_INT(_vfs_nfs, NFS_TPRINTF_DELAY,
104 downdelayinterval, CTLFLAG_RW, &nfs_tprintf_delay, 0, "");
107 SYSCTL_INT(_vfs_nfs, OID_AUTO, debug, CTLFLAG_RW, &nfs_debug, 0,
108 "Toggle debug flag");
111 static int nfs_mountroot(struct mount *);
112 static void nfs_sec_name(char *, int *);
113 static void nfs_decode_args(struct mount *mp, struct nfsmount *nmp,
114 struct nfs_args *argp, const char *, struct ucred *,
116 static int mountnfs(struct nfs_args *, struct mount *,
117 struct sockaddr *, char *, u_char *, int, u_char *, int,
118 u_char *, int, struct vnode **, struct ucred *,
119 struct thread *, int, int, int);
120 static void nfs_getnlminfo(struct vnode *, uint8_t *, size_t *,
121 struct sockaddr_storage *, int *, off_t *,
123 static vfs_mount_t nfs_mount;
124 static vfs_cmount_t nfs_cmount;
125 static vfs_unmount_t nfs_unmount;
126 static vfs_root_t nfs_root;
127 static vfs_statfs_t nfs_statfs;
128 static vfs_sync_t nfs_sync;
129 static vfs_sysctl_t nfs_sysctl;
130 static vfs_purge_t nfs_purge;
133 * nfs vfs operations.
135 static struct vfsops nfs_vfsops = {
136 .vfs_init = ncl_init,
137 .vfs_mount = nfs_mount,
138 .vfs_cmount = nfs_cmount,
139 .vfs_root = nfs_root,
140 .vfs_statfs = nfs_statfs,
141 .vfs_sync = nfs_sync,
142 .vfs_uninit = ncl_uninit,
143 .vfs_unmount = nfs_unmount,
144 .vfs_sysctl = nfs_sysctl,
145 .vfs_purge = nfs_purge,
147 VFS_SET(nfs_vfsops, nfs, VFCF_NETWORK | VFCF_SBDRY);
149 /* So that loader and kldload(2) can find us, wherever we are.. */
150 MODULE_VERSION(nfs, 1);
151 MODULE_DEPEND(nfs, nfscommon, 1, 1, 1);
152 MODULE_DEPEND(nfs, krpc, 1, 1, 1);
153 MODULE_DEPEND(nfs, nfssvc, 1, 1, 1);
154 MODULE_DEPEND(nfs, nfslock, 1, 1, 1);
157 * This structure is now defined in sys/nfs/nfs_diskless.c so that it
158 * can be shared by both NFS clients. It is declared here so that it
159 * will be defined for kernels built without NFS_ROOT, although it
160 * isn't used in that case.
162 #if !defined(NFS_ROOT)
163 struct nfs_diskless nfs_diskless = { { { 0 } } };
164 struct nfsv3_diskless nfsv3_diskless = { { { 0 } } };
165 int nfs_diskless_valid = 0;
168 SYSCTL_INT(_vfs_nfs, OID_AUTO, diskless_valid, CTLFLAG_RD,
169 &nfs_diskless_valid, 0,
170 "Has the diskless struct been filled correctly");
172 SYSCTL_STRING(_vfs_nfs, OID_AUTO, diskless_rootpath, CTLFLAG_RD,
173 nfsv3_diskless.root_hostnam, 0, "Path to nfs root");
175 SYSCTL_OPAQUE(_vfs_nfs, OID_AUTO, diskless_rootaddr, CTLFLAG_RD,
176 &nfsv3_diskless.root_saddr, sizeof(nfsv3_diskless.root_saddr),
177 "%Ssockaddr_in", "Diskless root nfs address");
180 void newnfsargs_ntoh(struct nfs_args *);
181 static int nfs_mountdiskless(char *,
182 struct sockaddr_in *, struct nfs_args *,
183 struct thread *, struct vnode **, struct mount *);
184 static void nfs_convert_diskless(void);
185 static void nfs_convert_oargs(struct nfs_args *args,
186 struct onfs_args *oargs);
189 newnfs_iosize(struct nfsmount *nmp)
193 /* First, set the upper limit for iosize */
194 if (nmp->nm_flag & NFSMNT_NFSV4) {
195 maxio = NFS_MAXBSIZE;
196 } else if (nmp->nm_flag & NFSMNT_NFSV3) {
197 if (nmp->nm_sotype == SOCK_DGRAM)
198 maxio = NFS_MAXDGRAMDATA;
200 maxio = NFS_MAXBSIZE;
202 maxio = NFS_V2MAXDATA;
204 if (nmp->nm_rsize > maxio || nmp->nm_rsize == 0)
205 nmp->nm_rsize = maxio;
206 if (nmp->nm_rsize > NFS_MAXBSIZE)
207 nmp->nm_rsize = NFS_MAXBSIZE;
208 if (nmp->nm_readdirsize > maxio || nmp->nm_readdirsize == 0)
209 nmp->nm_readdirsize = maxio;
210 if (nmp->nm_readdirsize > nmp->nm_rsize)
211 nmp->nm_readdirsize = nmp->nm_rsize;
212 if (nmp->nm_wsize > maxio || nmp->nm_wsize == 0)
213 nmp->nm_wsize = maxio;
214 if (nmp->nm_wsize > NFS_MAXBSIZE)
215 nmp->nm_wsize = NFS_MAXBSIZE;
218 * Calculate the size used for io buffers. Use the larger
219 * of the two sizes to minimise nfs requests but make sure
220 * that it is at least one VM page to avoid wasting buffer
221 * space. It must also be at least NFS_DIRBLKSIZ, since
222 * that is the buffer size used for directories.
224 iosize = imax(nmp->nm_rsize, nmp->nm_wsize);
225 iosize = imax(iosize, PAGE_SIZE);
226 iosize = imax(iosize, NFS_DIRBLKSIZ);
227 nmp->nm_mountp->mnt_stat.f_iosize = iosize;
232 nfs_convert_oargs(struct nfs_args *args, struct onfs_args *oargs)
235 args->version = NFS_ARGSVERSION;
236 args->addr = oargs->addr;
237 args->addrlen = oargs->addrlen;
238 args->sotype = oargs->sotype;
239 args->proto = oargs->proto;
240 args->fh = oargs->fh;
241 args->fhsize = oargs->fhsize;
242 args->flags = oargs->flags;
243 args->wsize = oargs->wsize;
244 args->rsize = oargs->rsize;
245 args->readdirsize = oargs->readdirsize;
246 args->timeo = oargs->timeo;
247 args->retrans = oargs->retrans;
248 args->readahead = oargs->readahead;
249 args->hostname = oargs->hostname;
253 nfs_convert_diskless(void)
256 bcopy(&nfs_diskless.myif, &nfsv3_diskless.myif,
257 sizeof(struct ifaliasreq));
258 bcopy(&nfs_diskless.mygateway, &nfsv3_diskless.mygateway,
259 sizeof(struct sockaddr_in));
260 nfs_convert_oargs(&nfsv3_diskless.root_args,&nfs_diskless.root_args);
261 if (nfsv3_diskless.root_args.flags & NFSMNT_NFSV3) {
262 nfsv3_diskless.root_fhsize = NFSX_MYFH;
263 bcopy(nfs_diskless.root_fh, nfsv3_diskless.root_fh, NFSX_MYFH);
265 nfsv3_diskless.root_fhsize = NFSX_V2FH;
266 bcopy(nfs_diskless.root_fh, nfsv3_diskless.root_fh, NFSX_V2FH);
268 bcopy(&nfs_diskless.root_saddr,&nfsv3_diskless.root_saddr,
269 sizeof(struct sockaddr_in));
270 bcopy(nfs_diskless.root_hostnam, nfsv3_diskless.root_hostnam, MNAMELEN);
271 nfsv3_diskless.root_time = nfs_diskless.root_time;
272 bcopy(nfs_diskless.my_hostnam, nfsv3_diskless.my_hostnam,
274 nfs_diskless_valid = 3;
281 nfs_statfs(struct mount *mp, struct statfs *sbp)
285 struct nfsmount *nmp = VFSTONFS(mp);
286 struct nfsvattr nfsva;
289 int error = 0, attrflag, gotfsinfo = 0, ret;
294 error = vfs_busy(mp, MBF_NOWAIT);
297 error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np, LK_EXCLUSIVE);
303 mtx_lock(&nmp->nm_mtx);
304 if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp)) {
305 mtx_unlock(&nmp->nm_mtx);
306 error = nfsrpc_fsinfo(vp, &fs, td->td_ucred, td, &nfsva,
311 mtx_unlock(&nmp->nm_mtx);
313 error = nfsrpc_statfs(vp, &sb, &fs, td->td_ucred, td, &nfsva,
316 NFSCL_DEBUG(2, "statfs=%d\n", error);
318 ret = nfsrpc_getattrnovp(nmp, nmp->nm_fh, nmp->nm_fhsize, 1,
319 td->td_ucred, td, &nfsva, NULL, NULL);
322 * Just set default values to get things going.
324 NFSBZERO((caddr_t)&nfsva, sizeof (struct nfsvattr));
325 nfsva.na_vattr.va_type = VDIR;
326 nfsva.na_vattr.va_mode = 0777;
327 nfsva.na_vattr.va_nlink = 100;
328 nfsva.na_vattr.va_uid = (uid_t)0;
329 nfsva.na_vattr.va_gid = (gid_t)0;
330 nfsva.na_vattr.va_fileid = 2;
331 nfsva.na_vattr.va_gen = 1;
332 nfsva.na_vattr.va_blocksize = NFS_FABLKSIZE;
333 nfsva.na_vattr.va_size = 512 * 1024;
336 (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0, 1);
338 mtx_lock(&nmp->nm_mtx);
339 if (gotfsinfo || (nmp->nm_flag & NFSMNT_NFSV4))
340 nfscl_loadfsinfo(nmp, &fs);
341 nfscl_loadsbinfo(nmp, &sb, sbp);
342 sbp->f_iosize = newnfs_iosize(nmp);
343 mtx_unlock(&nmp->nm_mtx);
344 if (sbp != &mp->mnt_stat) {
345 bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN);
346 bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN);
348 strncpy(&sbp->f_fstypename[0], mp->mnt_vfc->vfc_name, MFSNAMELEN);
349 } else if (NFS_ISV4(vp)) {
350 error = nfscl_maperr(td, error, (uid_t)0, (gid_t)0);
358 * nfs version 3 fsinfo rpc call
361 ncl_fsinfo(struct nfsmount *nmp, struct vnode *vp, struct ucred *cred,
365 struct nfsvattr nfsva;
368 error = nfsrpc_fsinfo(vp, &fs, cred, td, &nfsva, &attrflag, NULL);
371 (void) nfscl_loadattrcache(&vp, &nfsva, NULL, NULL, 0,
373 mtx_lock(&nmp->nm_mtx);
374 nfscl_loadfsinfo(nmp, &fs);
375 mtx_unlock(&nmp->nm_mtx);
381 * Mount a remote root fs via. nfs. This depends on the info in the
382 * nfs_diskless structure that has been filled in properly by some primary
384 * It goes something like this:
385 * - do enough of "ifconfig" by calling ifioctl() so that the system
386 * can talk to the server
387 * - If nfs_diskless.mygateway is filled in, use that address as
389 * - build the rootfs mount point and call mountnfs() to do the rest.
391 * It is assumed to be safe to read, modify, and write the nfsv3_diskless
392 * structure, as well as other global NFS client variables here, as
393 * nfs_mountroot() will be called once in the boot before any other NFS
394 * client activity occurs.
397 nfs_mountroot(struct mount *mp)
399 struct thread *td = curthread;
400 struct nfsv3_diskless *nd = &nfsv3_diskless;
409 #if defined(BOOTP_NFSROOT) && defined(BOOTP)
410 bootpc_init(); /* use bootp to get nfs_diskless filled in */
411 #elif defined(NFS_ROOT)
412 nfs_setup_diskless();
415 if (nfs_diskless_valid == 0)
417 if (nfs_diskless_valid == 1)
418 nfs_convert_diskless();
421 * Do enough of ifconfig(8) so that the critical net interface can
422 * talk to the server.
424 error = socreate(nd->myif.ifra_addr.sa_family, &so, nd->root_args.sotype, 0,
427 panic("nfs_mountroot: socreate(%04x): %d",
428 nd->myif.ifra_addr.sa_family, error);
430 #if 0 /* XXX Bad idea */
432 * We might not have been told the right interface, so we pass
433 * over the first ten interfaces of the same kind, until we get
434 * one of them configured.
437 for (i = strlen(nd->myif.ifra_name) - 1;
438 nd->myif.ifra_name[i] >= '0' &&
439 nd->myif.ifra_name[i] <= '9';
440 nd->myif.ifra_name[i] ++) {
441 error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
446 error = ifioctl(so, SIOCAIFADDR, (caddr_t)&nd->myif, td);
448 panic("nfs_mountroot: SIOCAIFADDR: %d", error);
449 if ((cp = kern_getenv("boot.netif.mtu")) != NULL) {
450 ir.ifr_mtu = strtol(cp, NULL, 10);
451 bcopy(nd->myif.ifra_name, ir.ifr_name, IFNAMSIZ);
453 error = ifioctl(so, SIOCSIFMTU, (caddr_t)&ir, td);
455 printf("nfs_mountroot: SIOCSIFMTU: %d", error);
460 * If the gateway field is filled in, set it as the default route.
461 * Note that pxeboot will set a default route of 0 if the route
462 * is not set by the DHCP server. Check also for a value of 0
463 * to avoid panicking inappropriately in that situation.
465 if (nd->mygateway.sin_len != 0 &&
466 nd->mygateway.sin_addr.s_addr != 0) {
467 struct sockaddr_in mask, sin;
469 bzero((caddr_t)&mask, sizeof(mask));
471 sin.sin_family = AF_INET;
472 sin.sin_len = sizeof(sin);
473 /* XXX MRT use table 0 for this sort of thing */
474 CURVNET_SET(TD_TO_VNET(td));
475 error = rtrequest_fib(RTM_ADD, (struct sockaddr *)&sin,
476 (struct sockaddr *)&nd->mygateway,
477 (struct sockaddr *)&mask,
478 RTF_UP | RTF_GATEWAY, NULL, RT_DEFAULT_FIB);
481 panic("nfs_mountroot: RTM_ADD: %d", error);
485 * Create the rootfs mount point.
487 nd->root_args.fh = nd->root_fh;
488 nd->root_args.fhsize = nd->root_fhsize;
489 l = ntohl(nd->root_saddr.sin_addr.s_addr);
490 snprintf(buf, sizeof(buf), "%ld.%ld.%ld.%ld:%s",
491 (l >> 24) & 0xff, (l >> 16) & 0xff,
492 (l >> 8) & 0xff, (l >> 0) & 0xff, nd->root_hostnam);
493 printf("NFS ROOT: %s\n", buf);
494 nd->root_args.hostname = buf;
495 if ((error = nfs_mountdiskless(buf,
496 &nd->root_saddr, &nd->root_args, td, &vp, mp)) != 0) {
501 * This is not really an nfs issue, but it is much easier to
502 * set hostname here and then let the "/etc/rc.xxx" files
503 * mount the right /var based upon its preset value.
505 mtx_lock(&prison0.pr_mtx);
506 strlcpy(prison0.pr_hostname, nd->my_hostnam,
507 sizeof(prison0.pr_hostname));
508 mtx_unlock(&prison0.pr_mtx);
509 inittodr(ntohl(nd->root_time));
514 * Internal version of mount system call for diskless setup.
517 nfs_mountdiskless(char *path,
518 struct sockaddr_in *sin, struct nfs_args *args, struct thread *td,
519 struct vnode **vpp, struct mount *mp)
521 struct sockaddr *nam;
526 * Find the directory path in "path", which also has the server's
527 * name/ip address in it.
529 dirpath = strchr(path, ':');
531 dirlen = strlen(++dirpath);
534 nam = sodupsockaddr((struct sockaddr *)sin, M_WAITOK);
535 if ((error = mountnfs(args, mp, nam, path, NULL, 0, dirpath, dirlen,
536 NULL, 0, vpp, td->td_ucred, td, NFS_DEFAULT_NAMETIMEO,
537 NFS_DEFAULT_NEGNAMETIMEO, 0)) != 0) {
538 printf("nfs_mountroot: mount %s on /: %d\n", path, error);
545 nfs_sec_name(char *sec, int *flagsp)
547 if (!strcmp(sec, "krb5"))
548 *flagsp |= NFSMNT_KERB;
549 else if (!strcmp(sec, "krb5i"))
550 *flagsp |= (NFSMNT_KERB | NFSMNT_INTEGRITY);
551 else if (!strcmp(sec, "krb5p"))
552 *flagsp |= (NFSMNT_KERB | NFSMNT_PRIVACY);
556 nfs_decode_args(struct mount *mp, struct nfsmount *nmp, struct nfs_args *argp,
557 const char *hostname, struct ucred *cred, struct thread *td)
563 * Set read-only flag if requested; otherwise, clear it if this is
564 * an update. If this is not an update, then either the read-only
565 * flag is already clear, or this is a root mount and it was set
566 * intentionally at some previous point.
568 if (vfs_getopt(mp->mnt_optnew, "ro", NULL, NULL) == 0) {
570 mp->mnt_flag |= MNT_RDONLY;
572 } else if (mp->mnt_flag & MNT_UPDATE) {
574 mp->mnt_flag &= ~MNT_RDONLY;
579 * Silently clear NFSMNT_NOCONN if it's a TCP mount, it makes
580 * no sense in that context. Also, set up appropriate retransmit
581 * and soft timeout behavior.
583 if (argp->sotype == SOCK_STREAM) {
584 nmp->nm_flag &= ~NFSMNT_NOCONN;
585 nmp->nm_timeo = NFS_MAXTIMEO;
586 if ((argp->flags & NFSMNT_NFSV4) != 0)
587 nmp->nm_retry = INT_MAX;
589 nmp->nm_retry = NFS_RETRANS_TCP;
592 /* Also clear RDIRPLUS if NFSv2, it crashes some servers */
593 if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0) {
594 argp->flags &= ~NFSMNT_RDIRPLUS;
595 nmp->nm_flag &= ~NFSMNT_RDIRPLUS;
598 /* Clear ONEOPENOWN for NFSv2, 3 and 4.0. */
599 if (nmp->nm_minorvers == 0) {
600 argp->flags &= ~NFSMNT_ONEOPENOWN;
601 nmp->nm_flag &= ~NFSMNT_ONEOPENOWN;
604 /* Re-bind if rsrvd port requested and wasn't on one */
605 adjsock = !(nmp->nm_flag & NFSMNT_RESVPORT)
606 && (argp->flags & NFSMNT_RESVPORT);
607 /* Also re-bind if we're switching to/from a connected UDP socket */
608 adjsock |= ((nmp->nm_flag & NFSMNT_NOCONN) !=
609 (argp->flags & NFSMNT_NOCONN));
611 /* Update flags atomically. Don't change the lock bits. */
612 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", "oneopenown",
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, "oneopenown", NULL, NULL) == 0)
975 args.flags |= NFSMNT_ONEOPENOWN;
976 if (vfs_getopt(mp->mnt_optnew, "readdirsize", (void **)&opt, NULL) == 0) {
978 vfs_mount_error(mp, "illegal readdirsize");
982 ret = sscanf(opt, "%d", &args.readdirsize);
983 if (ret != 1 || args.readdirsize <= 0) {
984 vfs_mount_error(mp, "illegal readdirsize: %s",
989 args.flags |= NFSMNT_READDIRSIZE;
991 if (vfs_getopt(mp->mnt_optnew, "readahead", (void **)&opt, NULL) == 0) {
993 vfs_mount_error(mp, "illegal readahead");
997 ret = sscanf(opt, "%d", &args.readahead);
998 if (ret != 1 || args.readahead <= 0) {
999 vfs_mount_error(mp, "illegal readahead: %s",
1004 args.flags |= NFSMNT_READAHEAD;
1006 if (vfs_getopt(mp->mnt_optnew, "wsize", (void **)&opt, NULL) == 0) {
1008 vfs_mount_error(mp, "illegal wsize");
1012 ret = sscanf(opt, "%d", &args.wsize);
1013 if (ret != 1 || args.wsize <= 0) {
1014 vfs_mount_error(mp, "illegal wsize: %s",
1019 args.flags |= NFSMNT_WSIZE;
1021 if (vfs_getopt(mp->mnt_optnew, "rsize", (void **)&opt, NULL) == 0) {
1023 vfs_mount_error(mp, "illegal rsize");
1027 ret = sscanf(opt, "%d", &args.rsize);
1028 if (ret != 1 || args.rsize <= 0) {
1029 vfs_mount_error(mp, "illegal wsize: %s",
1034 args.flags |= NFSMNT_RSIZE;
1036 if (vfs_getopt(mp->mnt_optnew, "retrans", (void **)&opt, NULL) == 0) {
1038 vfs_mount_error(mp, "illegal retrans");
1042 ret = sscanf(opt, "%d", &args.retrans);
1043 if (ret != 1 || args.retrans <= 0) {
1044 vfs_mount_error(mp, "illegal retrans: %s",
1049 args.flags |= NFSMNT_RETRANS;
1051 if (vfs_getopt(mp->mnt_optnew, "actimeo", (void **)&opt, NULL) == 0) {
1052 ret = sscanf(opt, "%d", &args.acregmin);
1053 if (ret != 1 || args.acregmin < 0) {
1054 vfs_mount_error(mp, "illegal actimeo: %s",
1059 args.acdirmin = args.acdirmax = args.acregmax = args.acregmin;
1060 args.flags |= NFSMNT_ACDIRMIN | NFSMNT_ACDIRMAX |
1061 NFSMNT_ACREGMIN | NFSMNT_ACREGMAX;
1063 if (vfs_getopt(mp->mnt_optnew, "acregmin", (void **)&opt, NULL) == 0) {
1064 ret = sscanf(opt, "%d", &args.acregmin);
1065 if (ret != 1 || args.acregmin < 0) {
1066 vfs_mount_error(mp, "illegal acregmin: %s",
1071 args.flags |= NFSMNT_ACREGMIN;
1073 if (vfs_getopt(mp->mnt_optnew, "acregmax", (void **)&opt, NULL) == 0) {
1074 ret = sscanf(opt, "%d", &args.acregmax);
1075 if (ret != 1 || args.acregmax < 0) {
1076 vfs_mount_error(mp, "illegal acregmax: %s",
1081 args.flags |= NFSMNT_ACREGMAX;
1083 if (vfs_getopt(mp->mnt_optnew, "acdirmin", (void **)&opt, NULL) == 0) {
1084 ret = sscanf(opt, "%d", &args.acdirmin);
1085 if (ret != 1 || args.acdirmin < 0) {
1086 vfs_mount_error(mp, "illegal acdirmin: %s",
1091 args.flags |= NFSMNT_ACDIRMIN;
1093 if (vfs_getopt(mp->mnt_optnew, "acdirmax", (void **)&opt, NULL) == 0) {
1094 ret = sscanf(opt, "%d", &args.acdirmax);
1095 if (ret != 1 || args.acdirmax < 0) {
1096 vfs_mount_error(mp, "illegal acdirmax: %s",
1101 args.flags |= NFSMNT_ACDIRMAX;
1103 if (vfs_getopt(mp->mnt_optnew, "wcommitsize", (void **)&opt, NULL) == 0) {
1104 ret = sscanf(opt, "%d", &args.wcommitsize);
1105 if (ret != 1 || args.wcommitsize < 0) {
1106 vfs_mount_error(mp, "illegal wcommitsize: %s", opt);
1110 args.flags |= NFSMNT_WCOMMITSIZE;
1112 if (vfs_getopt(mp->mnt_optnew, "timeo", (void **)&opt, NULL) == 0) {
1113 ret = sscanf(opt, "%d", &args.timeo);
1114 if (ret != 1 || args.timeo <= 0) {
1115 vfs_mount_error(mp, "illegal timeo: %s",
1120 args.flags |= NFSMNT_TIMEO;
1122 if (vfs_getopt(mp->mnt_optnew, "timeout", (void **)&opt, NULL) == 0) {
1123 ret = sscanf(opt, "%d", &args.timeo);
1124 if (ret != 1 || args.timeo <= 0) {
1125 vfs_mount_error(mp, "illegal timeout: %s",
1130 args.flags |= NFSMNT_TIMEO;
1132 if (vfs_getopt(mp->mnt_optnew, "nametimeo", (void **)&opt, NULL) == 0) {
1133 ret = sscanf(opt, "%d", &nametimeo);
1134 if (ret != 1 || nametimeo < 0) {
1135 vfs_mount_error(mp, "illegal nametimeo: %s", opt);
1140 if (vfs_getopt(mp->mnt_optnew, "negnametimeo", (void **)&opt, NULL)
1142 ret = sscanf(opt, "%d", &negnametimeo);
1143 if (ret != 1 || negnametimeo < 0) {
1144 vfs_mount_error(mp, "illegal negnametimeo: %s",
1150 if (vfs_getopt(mp->mnt_optnew, "minorversion", (void **)&opt, NULL) ==
1152 ret = sscanf(opt, "%d", &minvers);
1153 if (ret != 1 || minvers < 0 || minvers > 1 ||
1154 (args.flags & NFSMNT_NFSV4) == 0) {
1155 vfs_mount_error(mp, "illegal minorversion: %s", opt);
1160 if (vfs_getopt(mp->mnt_optnew, "sec",
1161 (void **) &secname, NULL) == 0)
1162 nfs_sec_name(secname, &args.flags);
1164 if (mp->mnt_flag & MNT_UPDATE) {
1165 struct nfsmount *nmp = VFSTONFS(mp);
1173 * If a change from TCP->UDP is done and there are thread(s)
1174 * that have I/O RPC(s) in progress with a transfer size
1175 * greater than NFS_MAXDGRAMDATA, those thread(s) will be
1176 * hung, retrying the RPC(s) forever. Usually these threads
1177 * will be seen doing an uninterruptible sleep on wait channel
1180 if (args.sotype == SOCK_DGRAM && nmp->nm_sotype == SOCK_STREAM)
1181 tprintf(td->td_proc, LOG_WARNING,
1182 "Warning: mount -u that changes TCP->UDP can result in hung threads\n");
1185 * When doing an update, we can't change version,
1186 * security, switch lockd strategies, change cookie
1187 * translation or switch oneopenown.
1189 args.flags = (args.flags &
1196 NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/)) |
1204 NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/));
1205 nfs_decode_args(mp, nmp, &args, NULL, td->td_ucred, td);
1210 * Make the nfs_ip_paranoia sysctl serve as the default connection
1211 * or no-connection mode for those protocols that support
1212 * no-connection mode (the flag will be cleared later for protocols
1213 * that do not support no-connection mode). This will allow a client
1214 * to receive replies from a different IP then the request was
1215 * sent to. Note: default value for nfs_ip_paranoia is 1 (paranoid),
1218 if (nfs_ip_paranoia == 0)
1219 args.flags |= NFSMNT_NOCONN;
1221 if (has_nfs_args_opt != 0) {
1223 * In the 'nfs_args' case, the pointers in the args
1224 * structure are in userland - we copy them in here.
1226 if (args.fhsize < 0 || args.fhsize > NFSX_V3FHMAX) {
1227 vfs_mount_error(mp, "Bad file handle");
1231 error = copyin((caddr_t)args.fh, (caddr_t)nfh,
1235 error = copyinstr(args.hostname, hst, MNAMELEN - 1, &hstlen);
1238 bzero(&hst[hstlen], MNAMELEN - hstlen);
1239 args.hostname = hst;
1240 /* getsockaddr() call must be after above copyin() calls */
1241 error = getsockaddr(&nam, (caddr_t)args.addr,
1245 } else if (nfs_mount_parse_from(mp->mnt_optnew,
1246 &args.hostname, (struct sockaddr_in **)&nam, dirpath,
1247 sizeof(dirpath), &dirlen) == 0) {
1248 has_nfs_from_opt = 1;
1249 bcopy(args.hostname, hst, MNAMELEN);
1250 hst[MNAMELEN - 1] = '\0';
1253 * This only works with NFSv4 for now.
1256 args.flags |= NFSMNT_NFSV4;
1257 args.sotype = SOCK_STREAM;
1259 if (vfs_getopt(mp->mnt_optnew, "fh", (void **)&args.fh,
1260 &args.fhsize) == 0) {
1261 if (args.fhsize < 0 || args.fhsize > NFSX_FHMAX) {
1262 vfs_mount_error(mp, "Bad file handle");
1266 bcopy(args.fh, nfh, args.fhsize);
1270 (void) vfs_getopt(mp->mnt_optnew, "hostname",
1271 (void **)&args.hostname, &len);
1272 if (args.hostname == NULL) {
1273 vfs_mount_error(mp, "Invalid hostname");
1277 if (len >= MNAMELEN) {
1278 vfs_mount_error(mp, "Hostname too long");
1282 bcopy(args.hostname, hst, len);
1286 if (vfs_getopt(mp->mnt_optnew, "principal", (void **)&name, NULL) == 0)
1287 strlcpy(srvkrbname, name, sizeof (srvkrbname));
1289 snprintf(srvkrbname, sizeof (srvkrbname), "nfs@%s", hst);
1290 cp = strchr(srvkrbname, ':');
1294 srvkrbnamelen = strlen(srvkrbname);
1296 if (vfs_getopt(mp->mnt_optnew, "gssname", (void **)&name, NULL) == 0)
1297 strlcpy(krbname, name, sizeof (krbname));
1300 krbnamelen = strlen(krbname);
1302 if (has_nfs_from_opt == 0) {
1303 if (vfs_getopt(mp->mnt_optnew,
1304 "dirpath", (void **)&name, NULL) == 0)
1305 strlcpy(dirpath, name, sizeof (dirpath));
1308 dirlen = strlen(dirpath);
1311 if (has_nfs_args_opt == 0 && has_nfs_from_opt == 0) {
1312 if (vfs_getopt(mp->mnt_optnew, "addr",
1313 (void **)&args.addr, &args.addrlen) == 0) {
1314 if (args.addrlen > SOCK_MAXADDRLEN) {
1315 error = ENAMETOOLONG;
1318 nam = malloc(args.addrlen, M_SONAME, M_WAITOK);
1319 bcopy(args.addr, nam, args.addrlen);
1320 nam->sa_len = args.addrlen;
1322 vfs_mount_error(mp, "No server address");
1329 error = mountnfs(&args, mp, nam, hst, krbname, krbnamelen, dirpath,
1330 dirlen, srvkrbname, srvkrbnamelen, &vp, td->td_ucred, td,
1331 nametimeo, negnametimeo, minvers);
1335 mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED | MNTK_NO_IOPF |
1337 if ((VFSTONFS(mp)->nm_flag & NFSMNT_NFSV4) != 0)
1338 mp->mnt_kern_flag |= MNTK_NULL_NOCACHE;
1350 * It seems a bit dumb to copyinstr() the host and path here and then
1351 * bcopy() them in mountnfs(), but I wanted to detect errors before
1352 * doing the getsockaddr() call because getsockaddr() allocates an mbuf and
1353 * an error after that means that I have to release the mbuf.
1357 nfs_cmount(struct mntarg *ma, void *data, uint64_t flags)
1360 struct nfs_args args;
1362 error = copyin(data, &args, sizeof (struct nfs_args));
1366 ma = mount_arg(ma, "nfs_args", &args, sizeof args);
1368 error = kernel_mount(ma, flags);
1373 * Common code for mount and mountroot
1376 mountnfs(struct nfs_args *argp, struct mount *mp, struct sockaddr *nam,
1377 char *hst, u_char *krbname, int krbnamelen, u_char *dirpath, int dirlen,
1378 u_char *srvkrbname, int srvkrbnamelen, struct vnode **vpp,
1379 struct ucred *cred, struct thread *td, int nametimeo, int negnametimeo,
1382 struct nfsmount *nmp;
1384 int error, trycnt, ret;
1385 struct nfsvattr nfsva;
1386 struct nfsclclient *clp;
1387 struct nfsclds *dsp, *tdsp;
1389 static u_int64_t clval = 0;
1391 NFSCL_DEBUG(3, "in mnt\n");
1393 if (mp->mnt_flag & MNT_UPDATE) {
1395 printf("%s: MNT_UPDATE is no longer handled here\n", __func__);
1396 free(nam, M_SONAME);
1399 nmp = malloc(sizeof (struct nfsmount) +
1400 krbnamelen + dirlen + srvkrbnamelen + 2,
1401 M_NEWNFSMNT, M_WAITOK | M_ZERO);
1402 TAILQ_INIT(&nmp->nm_bufq);
1403 TAILQ_INIT(&nmp->nm_sess);
1405 clval = (u_int64_t)nfsboottime.tv_sec;
1406 nmp->nm_clval = clval++;
1407 nmp->nm_krbnamelen = krbnamelen;
1408 nmp->nm_dirpathlen = dirlen;
1409 nmp->nm_srvkrbnamelen = srvkrbnamelen;
1410 if (td->td_ucred->cr_uid != (uid_t)0) {
1412 * nm_uid is used to get KerberosV credentials for
1413 * the nfsv4 state handling operations if there is
1414 * no host based principal set. Use the uid of
1415 * this user if not root, since they are doing the
1416 * mount. I don't think setting this for root will
1417 * work, since root normally does not have user
1418 * credentials in a credentials cache.
1420 nmp->nm_uid = td->td_ucred->cr_uid;
1423 * Just set to -1, so it won't be used.
1425 nmp->nm_uid = (uid_t)-1;
1428 /* Copy and null terminate all the names */
1429 if (nmp->nm_krbnamelen > 0) {
1430 bcopy(krbname, nmp->nm_krbname, nmp->nm_krbnamelen);
1431 nmp->nm_name[nmp->nm_krbnamelen] = '\0';
1433 if (nmp->nm_dirpathlen > 0) {
1434 bcopy(dirpath, NFSMNT_DIRPATH(nmp),
1435 nmp->nm_dirpathlen);
1436 nmp->nm_name[nmp->nm_krbnamelen + nmp->nm_dirpathlen
1439 if (nmp->nm_srvkrbnamelen > 0) {
1440 bcopy(srvkrbname, NFSMNT_SRVKRBNAME(nmp),
1441 nmp->nm_srvkrbnamelen);
1442 nmp->nm_name[nmp->nm_krbnamelen + nmp->nm_dirpathlen
1443 + nmp->nm_srvkrbnamelen + 2] = '\0';
1445 nmp->nm_sockreq.nr_cred = crhold(cred);
1446 mtx_init(&nmp->nm_sockreq.nr_mtx, "nfssock", NULL, MTX_DEF);
1448 nmp->nm_getinfo = nfs_getnlminfo;
1449 nmp->nm_vinvalbuf = ncl_vinvalbuf;
1452 nmp->nm_mountp = mp;
1453 mtx_init(&nmp->nm_mtx, "NFSmount lock", NULL, MTX_DEF | MTX_DUPOK);
1456 * Since nfs_decode_args() might optionally set them, these
1457 * need to be set to defaults before the call, so that the
1458 * optional settings aren't overwritten.
1460 nmp->nm_nametimeo = nametimeo;
1461 nmp->nm_negnametimeo = negnametimeo;
1462 nmp->nm_timeo = NFS_TIMEO;
1463 nmp->nm_retry = NFS_RETRANS;
1464 nmp->nm_readahead = NFS_DEFRAHEAD;
1466 /* This is empirical approximation of sqrt(hibufspace) * 256. */
1467 nmp->nm_wcommitsize = NFS_MAXBSIZE / 256;
1468 while ((long)nmp->nm_wcommitsize * nmp->nm_wcommitsize < hibufspace)
1469 nmp->nm_wcommitsize *= 2;
1470 nmp->nm_wcommitsize *= 256;
1472 if ((argp->flags & NFSMNT_NFSV4) != 0)
1473 nmp->nm_minorvers = minvers;
1475 nmp->nm_minorvers = 0;
1477 nfs_decode_args(mp, nmp, argp, hst, cred, td);
1480 * V2 can only handle 32 bit filesizes. A 4GB-1 limit may be too
1481 * high, depending on whether we end up with negative offsets in
1482 * the client or server somewhere. 2GB-1 may be safer.
1484 * For V3, ncl_fsinfo will adjust this as necessary. Assume maximum
1485 * that we can handle until we find out otherwise.
1487 if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0)
1488 nmp->nm_maxfilesize = 0xffffffffLL;
1490 nmp->nm_maxfilesize = OFF_MAX;
1492 if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0) {
1493 nmp->nm_wsize = NFS_WSIZE;
1494 nmp->nm_rsize = NFS_RSIZE;
1495 nmp->nm_readdirsize = NFS_READDIRSIZE;
1497 nmp->nm_numgrps = NFS_MAXGRPS;
1498 nmp->nm_tprintf_delay = nfs_tprintf_delay;
1499 if (nmp->nm_tprintf_delay < 0)
1500 nmp->nm_tprintf_delay = 0;
1501 nmp->nm_tprintf_initial_delay = nfs_tprintf_initial_delay;
1502 if (nmp->nm_tprintf_initial_delay < 0)
1503 nmp->nm_tprintf_initial_delay = 0;
1504 nmp->nm_fhsize = argp->fhsize;
1505 if (nmp->nm_fhsize > 0)
1506 bcopy((caddr_t)argp->fh, (caddr_t)nmp->nm_fh, argp->fhsize);
1507 bcopy(hst, mp->mnt_stat.f_mntfromname, MNAMELEN);
1509 /* Set up the sockets and per-host congestion */
1510 nmp->nm_sotype = argp->sotype;
1511 nmp->nm_soproto = argp->proto;
1512 nmp->nm_sockreq.nr_prog = NFS_PROG;
1513 if ((argp->flags & NFSMNT_NFSV4))
1514 nmp->nm_sockreq.nr_vers = NFS_VER4;
1515 else if ((argp->flags & NFSMNT_NFSV3))
1516 nmp->nm_sockreq.nr_vers = NFS_VER3;
1518 nmp->nm_sockreq.nr_vers = NFS_VER2;
1521 if ((error = newnfs_connect(nmp, &nmp->nm_sockreq, cred, td, 0)))
1523 /* For NFSv4.1, get the clientid now. */
1524 if (nmp->nm_minorvers > 0) {
1525 NFSCL_DEBUG(3, "at getcl\n");
1526 error = nfscl_getcl(mp, cred, td, 0, &clp);
1527 NFSCL_DEBUG(3, "aft getcl=%d\n", error);
1532 if (nmp->nm_fhsize == 0 && (nmp->nm_flag & NFSMNT_NFSV4) &&
1533 nmp->nm_dirpathlen > 0) {
1534 NFSCL_DEBUG(3, "in dirp\n");
1536 * If the fhsize on the mount point == 0 for V4, the mount
1537 * path needs to be looked up.
1541 error = nfsrpc_getdirpath(nmp, NFSMNT_DIRPATH(nmp),
1543 NFSCL_DEBUG(3, "aft dirp=%d\n", error);
1545 (void) nfs_catnap(PZERO, error, "nfsgetdirp");
1546 } while (error && --trycnt > 0);
1552 * A reference count is needed on the nfsnode representing the
1553 * remote root. If this object is not persistent, then backward
1554 * traversals of the mount point (i.e. "..") will not work if
1555 * the nfsnode gets flushed out of the cache. Ufs does not have
1556 * this problem, because one can identify root inodes by their
1557 * number == UFS_ROOTINO (2).
1559 if (nmp->nm_fhsize > 0) {
1561 * Set f_iosize to NFS_DIRBLKSIZ so that bo_bsize gets set
1562 * non-zero for the root vnode. f_iosize will be set correctly
1563 * by nfs_statfs() before any I/O occurs.
1565 mp->mnt_stat.f_iosize = NFS_DIRBLKSIZ;
1566 error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np,
1573 * Get file attributes and transfer parameters for the
1574 * mountpoint. This has the side effect of filling in
1575 * (*vpp)->v_type with the correct value.
1577 ret = nfsrpc_getattrnovp(nmp, nmp->nm_fh, nmp->nm_fhsize, 1,
1578 cred, td, &nfsva, NULL, &lease);
1581 * Just set default values to get things going.
1583 NFSBZERO((caddr_t)&nfsva, sizeof (struct nfsvattr));
1584 nfsva.na_vattr.va_type = VDIR;
1585 nfsva.na_vattr.va_mode = 0777;
1586 nfsva.na_vattr.va_nlink = 100;
1587 nfsva.na_vattr.va_uid = (uid_t)0;
1588 nfsva.na_vattr.va_gid = (gid_t)0;
1589 nfsva.na_vattr.va_fileid = 2;
1590 nfsva.na_vattr.va_gen = 1;
1591 nfsva.na_vattr.va_blocksize = NFS_FABLKSIZE;
1592 nfsva.na_vattr.va_size = 512 * 1024;
1595 (void) nfscl_loadattrcache(vpp, &nfsva, NULL, NULL, 0, 1);
1596 if (nmp->nm_minorvers > 0) {
1597 NFSCL_DEBUG(3, "lease=%d\n", (int)lease);
1599 clp->nfsc_renew = NFSCL_RENEW(lease);
1600 clp->nfsc_expire = NFSD_MONOSEC + clp->nfsc_renew;
1601 clp->nfsc_clientidrev++;
1602 if (clp->nfsc_clientidrev == 0)
1603 clp->nfsc_clientidrev++;
1606 * Mount will succeed, so the renew thread can be
1609 nfscl_start_renewthread(clp);
1610 nfscl_clientrelease(clp);
1612 if (argp->flags & NFSMNT_NFSV3)
1613 ncl_fsinfo(nmp, *vpp, cred, td);
1615 /* Mark if the mount point supports NFSv4 ACLs. */
1616 if ((argp->flags & NFSMNT_NFSV4) != 0 && nfsrv_useacl != 0 &&
1618 NFSISSET_ATTRBIT(&nfsva.na_suppattr, NFSATTRBIT_ACL)) {
1620 mp->mnt_flag |= MNT_NFS4ACLS;
1625 * Lose the lock but keep the ref.
1627 NFSVOPUNLOCK(*vpp, 0);
1634 nfscl_clientrelease(clp);
1635 newnfs_disconnect(&nmp->nm_sockreq);
1636 crfree(nmp->nm_sockreq.nr_cred);
1637 if (nmp->nm_sockreq.nr_auth != NULL)
1638 AUTH_DESTROY(nmp->nm_sockreq.nr_auth);
1639 mtx_destroy(&nmp->nm_sockreq.nr_mtx);
1640 mtx_destroy(&nmp->nm_mtx);
1641 if (nmp->nm_clp != NULL) {
1643 LIST_REMOVE(nmp->nm_clp, nfsc_list);
1645 free(nmp->nm_clp, M_NFSCLCLIENT);
1647 TAILQ_FOREACH_SAFE(dsp, &nmp->nm_sess, nfsclds_list, tdsp) {
1648 if (dsp != TAILQ_FIRST(&nmp->nm_sess) &&
1649 dsp->nfsclds_sockp != NULL)
1650 newnfs_disconnect(dsp->nfsclds_sockp);
1651 nfscl_freenfsclds(dsp);
1653 free(nmp, M_NEWNFSMNT);
1654 free(nam, M_SONAME);
1659 * unmount system call
1662 nfs_unmount(struct mount *mp, int mntflags)
1665 struct nfsmount *nmp;
1666 int error, flags = 0, i, trycnt = 0;
1667 struct nfsclds *dsp, *tdsp;
1671 if (mntflags & MNT_FORCE)
1672 flags |= FORCECLOSE;
1676 * Goes something like this..
1677 * - Call vflush() to clear out vnodes for this filesystem
1678 * - Close the socket
1679 * - Free up the data structures
1681 /* In the forced case, cancel any outstanding requests. */
1682 if (mntflags & MNT_FORCE) {
1684 if (nfsv4_findmirror(nmp) != NULL)
1689 error = newnfs_nmcancelreqs(nmp);
1692 /* For a forced close, get rid of the renew thread now */
1693 nfscl_umount(nmp, td);
1695 /* We hold 1 extra ref on the root vnode; see comment in mountnfs(). */
1697 error = vflush(mp, 1, flags, td);
1698 if ((mntflags & MNT_FORCE) && error != 0 && ++trycnt < 30)
1699 (void) nfs_catnap(PSOCK, error, "newndm");
1700 } while ((mntflags & MNT_FORCE) && error != 0 && trycnt < 30);
1705 * We are now committed to the unmount.
1707 if ((mntflags & MNT_FORCE) == 0)
1708 nfscl_umount(nmp, td);
1710 mtx_lock(&nmp->nm_mtx);
1711 nmp->nm_privflag |= NFSMNTP_FORCEDISM;
1712 mtx_unlock(&nmp->nm_mtx);
1714 /* Make sure no nfsiods are assigned to this mount. */
1716 for (i = 0; i < NFS_MAXASYNCDAEMON; i++)
1717 if (ncl_iodmount[i] == nmp) {
1718 ncl_iodwant[i] = NFSIOD_AVAILABLE;
1719 ncl_iodmount[i] = NULL;
1724 * We can now set mnt_data to NULL and wait for
1725 * nfssvc(NFSSVC_FORCEDISM) to complete.
1727 mtx_lock(&mountlist_mtx);
1728 mtx_lock(&nmp->nm_mtx);
1729 mp->mnt_data = NULL;
1730 mtx_unlock(&mountlist_mtx);
1731 while ((nmp->nm_privflag & NFSMNTP_CANCELRPCS) != 0)
1732 msleep(nmp, &nmp->nm_mtx, PVFS, "nfsfdism", 0);
1733 mtx_unlock(&nmp->nm_mtx);
1735 newnfs_disconnect(&nmp->nm_sockreq);
1736 crfree(nmp->nm_sockreq.nr_cred);
1737 free(nmp->nm_nam, M_SONAME);
1738 if (nmp->nm_sockreq.nr_auth != NULL)
1739 AUTH_DESTROY(nmp->nm_sockreq.nr_auth);
1740 mtx_destroy(&nmp->nm_sockreq.nr_mtx);
1741 mtx_destroy(&nmp->nm_mtx);
1742 TAILQ_FOREACH_SAFE(dsp, &nmp->nm_sess, nfsclds_list, tdsp) {
1743 if (dsp != TAILQ_FIRST(&nmp->nm_sess) &&
1744 dsp->nfsclds_sockp != NULL)
1745 newnfs_disconnect(dsp->nfsclds_sockp);
1746 nfscl_freenfsclds(dsp);
1748 free(nmp, M_NEWNFSMNT);
1754 * Return root of a filesystem
1757 nfs_root(struct mount *mp, int flags, struct vnode **vpp)
1760 struct nfsmount *nmp;
1765 error = ncl_nget(mp, nmp->nm_fh, nmp->nm_fhsize, &np, flags);
1770 * Get transfer parameters and attributes for root vnode once.
1772 mtx_lock(&nmp->nm_mtx);
1773 if (NFSHASNFSV3(nmp) && !NFSHASGOTFSINFO(nmp)) {
1774 mtx_unlock(&nmp->nm_mtx);
1775 ncl_fsinfo(nmp, vp, curthread->td_ucred, curthread);
1777 mtx_unlock(&nmp->nm_mtx);
1778 if (vp->v_type == VNON)
1780 vp->v_vflag |= VV_ROOT;
1786 * Flush out the buffer cache
1790 nfs_sync(struct mount *mp, int waitfor)
1792 struct vnode *vp, *mvp;
1794 int error, allerror = 0;
1800 * If a forced dismount is in progress, return from here so that
1801 * the umount(2) syscall doesn't get stuck in VFS_SYNC() before
1802 * calling VFS_UNMOUNT().
1804 if (NFSCL_FORCEDISM(mp)) {
1811 * Force stale buffer cache information to be flushed.
1814 MNT_VNODE_FOREACH_ALL(vp, mp, mvp) {
1815 /* XXX Racy bv_cnt check. */
1816 if (NFSVOPISLOCKED(vp) || vp->v_bufobj.bo_dirty.bv_cnt == 0 ||
1817 waitfor == MNT_LAZY) {
1821 if (vget(vp, LK_EXCLUSIVE | LK_INTERLOCK, td)) {
1822 MNT_VNODE_FOREACH_ALL_ABORT(mp, mvp);
1825 error = VOP_FSYNC(vp, waitfor, td);
1828 NFSVOPUNLOCK(vp, 0);
1835 nfs_sysctl(struct mount *mp, fsctlop_t op, struct sysctl_req *req)
1837 struct nfsmount *nmp = VFSTONFS(mp);
1841 bzero(&vq, sizeof(vq));
1844 case VFS_CTL_NOLOCKS:
1845 val = (nmp->nm_flag & NFSMNT_NOLOCKS) ? 1 : 0;
1846 if (req->oldptr != NULL) {
1847 error = SYSCTL_OUT(req, &val, sizeof(val));
1851 if (req->newptr != NULL) {
1852 error = SYSCTL_IN(req, &val, sizeof(val));
1856 nmp->nm_flag |= NFSMNT_NOLOCKS;
1858 nmp->nm_flag &= ~NFSMNT_NOLOCKS;
1863 mtx_lock(&nmp->nm_mtx);
1864 if (nmp->nm_state & NFSSTA_TIMEO)
1865 vq.vq_flags |= VQ_NOTRESP;
1866 mtx_unlock(&nmp->nm_mtx);
1868 if (!(nmp->nm_flag & NFSMNT_NOLOCKS) &&
1869 (nmp->nm_state & NFSSTA_LOCKTIMEO))
1870 vq.vq_flags |= VQ_NOTRESPLOCK;
1872 error = SYSCTL_OUT(req, &vq, sizeof(vq));
1875 if (req->oldptr != NULL) {
1876 error = SYSCTL_OUT(req, &nmp->nm_tprintf_initial_delay,
1877 sizeof(nmp->nm_tprintf_initial_delay));
1881 if (req->newptr != NULL) {
1882 error = vfs_suser(mp, req->td);
1885 error = SYSCTL_IN(req, &nmp->nm_tprintf_initial_delay,
1886 sizeof(nmp->nm_tprintf_initial_delay));
1889 if (nmp->nm_tprintf_initial_delay < 0)
1890 nmp->nm_tprintf_initial_delay = 0;
1900 * Purge any RPCs in progress, so that they will all return errors.
1901 * This allows dounmount() to continue as far as VFS_UNMOUNT() for a
1905 nfs_purge(struct mount *mp)
1907 struct nfsmount *nmp = VFSTONFS(mp);
1909 newnfs_nmcancelreqs(nmp);
1913 * Extract the information needed by the nlm from the nfs vnode.
1916 nfs_getnlminfo(struct vnode *vp, uint8_t *fhp, size_t *fhlenp,
1917 struct sockaddr_storage *sp, int *is_v3p, off_t *sizep,
1918 struct timeval *timeop)
1920 struct nfsmount *nmp;
1921 struct nfsnode *np = VTONFS(vp);
1923 nmp = VFSTONFS(vp->v_mount);
1925 *fhlenp = (size_t)np->n_fhp->nfh_len;
1927 bcopy(np->n_fhp->nfh_fh, fhp, np->n_fhp->nfh_len);
1929 bcopy(nmp->nm_nam, sp, min(nmp->nm_nam->sa_len, sizeof(*sp)));
1931 *is_v3p = NFS_ISV3(vp);
1933 *sizep = np->n_size;
1934 if (timeop != NULL) {
1935 timeop->tv_sec = nmp->nm_timeo / NFS_HZ;
1936 timeop->tv_usec = (nmp->nm_timeo % NFS_HZ) * (1000000 / NFS_HZ);
1941 * This function prints out an option name, based on the conditional
1944 static __inline void nfscl_printopt(struct nfsmount *nmp, int testval,
1945 char *opt, char **buf, size_t *blen)
1949 if (testval != 0 && *blen > strlen(opt)) {
1950 len = snprintf(*buf, *blen, "%s", opt);
1951 if (len != strlen(opt))
1959 * This function printf out an options integer value.
1961 static __inline void nfscl_printoptval(struct nfsmount *nmp, int optval,
1962 char *opt, char **buf, size_t *blen)
1966 if (*blen > strlen(opt) + 1) {
1967 /* Could result in truncated output string. */
1968 len = snprintf(*buf, *blen, "%s=%d", opt, optval);
1977 * Load the option flags and values into the buffer.
1979 void nfscl_retopts(struct nfsmount *nmp, char *buffer, size_t buflen)
1986 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NFSV4) != 0, "nfsv4", &buf,
1988 if ((nmp->nm_flag & NFSMNT_NFSV4) != 0) {
1989 nfscl_printoptval(nmp, nmp->nm_minorvers, ",minorversion", &buf,
1991 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_PNFS) != 0, ",pnfs",
1993 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_ONEOPENOWN) != 0 &&
1994 nmp->nm_minorvers > 0, ",oneopenown", &buf, &blen);
1996 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NFSV3) != 0, "nfsv3", &buf,
1998 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0,
1999 "nfsv2", &buf, &blen);
2000 nfscl_printopt(nmp, nmp->nm_sotype == SOCK_STREAM, ",tcp", &buf, &blen);
2001 nfscl_printopt(nmp, nmp->nm_sotype != SOCK_STREAM, ",udp", &buf, &blen);
2002 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_RESVPORT) != 0, ",resvport",
2004 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCONN) != 0, ",noconn",
2006 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_SOFT) == 0, ",hard", &buf,
2008 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_SOFT) != 0, ",soft", &buf,
2010 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_INT) != 0, ",intr", &buf,
2012 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCTO) == 0, ",cto", &buf,
2014 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NOCTO) != 0, ",nocto", &buf,
2016 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_NONCONTIGWR) != 0,
2017 ",noncontigwr", &buf, &blen);
2018 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NOLOCKD | NFSMNT_NFSV4)) ==
2019 0, ",lockd", &buf, &blen);
2020 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_NOLOCKD | NFSMNT_NFSV4)) ==
2021 NFSMNT_NOLOCKD, ",nolockd", &buf, &blen);
2022 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_RDIRPLUS) != 0, ",rdirplus",
2024 nfscl_printopt(nmp, (nmp->nm_flag & NFSMNT_KERB) == 0, ",sec=sys",
2026 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
2027 NFSMNT_PRIVACY)) == NFSMNT_KERB, ",sec=krb5", &buf, &blen);
2028 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
2029 NFSMNT_PRIVACY)) == (NFSMNT_KERB | NFSMNT_INTEGRITY), ",sec=krb5i",
2031 nfscl_printopt(nmp, (nmp->nm_flag & (NFSMNT_KERB | NFSMNT_INTEGRITY |
2032 NFSMNT_PRIVACY)) == (NFSMNT_KERB | NFSMNT_PRIVACY), ",sec=krb5p",
2034 nfscl_printoptval(nmp, nmp->nm_acdirmin, ",acdirmin", &buf, &blen);
2035 nfscl_printoptval(nmp, nmp->nm_acdirmax, ",acdirmax", &buf, &blen);
2036 nfscl_printoptval(nmp, nmp->nm_acregmin, ",acregmin", &buf, &blen);
2037 nfscl_printoptval(nmp, nmp->nm_acregmax, ",acregmax", &buf, &blen);
2038 nfscl_printoptval(nmp, nmp->nm_nametimeo, ",nametimeo", &buf, &blen);
2039 nfscl_printoptval(nmp, nmp->nm_negnametimeo, ",negnametimeo", &buf,
2041 nfscl_printoptval(nmp, nmp->nm_rsize, ",rsize", &buf, &blen);
2042 nfscl_printoptval(nmp, nmp->nm_wsize, ",wsize", &buf, &blen);
2043 nfscl_printoptval(nmp, nmp->nm_readdirsize, ",readdirsize", &buf,
2045 nfscl_printoptval(nmp, nmp->nm_readahead, ",readahead", &buf, &blen);
2046 nfscl_printoptval(nmp, nmp->nm_wcommitsize, ",wcommitsize", &buf,
2048 nfscl_printoptval(nmp, nmp->nm_timeo, ",timeout", &buf, &blen);
2049 nfscl_printoptval(nmp, nmp->nm_retry, ",retrans", &buf, &blen);