1/*-
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 */
33
34#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 */
33
34#include <sys/cdefs.h>
|
35__FBSDID("$FreeBSD: head/sys/fs/nfs/nfs_commonport.c 224079 2011-07-16 08:05:21Z zack $");
| 35__FBSDID("$FreeBSD: head/sys/fs/nfs/nfs_commonport.c 224086 2011-07-16 08:51:09Z zack $");
|
36
37/*
38 * Functions that need to be different for different versions of BSD
39 * kernel should be kept here, along with any global storage specific
40 * to this BSD variant.
41 */
42#include <fs/nfs/nfsport.h>
43#include <sys/sysctl.h>
44#include <vm/vm.h>
45#include <vm/vm_object.h>
46#include <vm/vm_page.h>
47#include <vm/vm_param.h>
48#include <vm/vm_map.h>
49#include <vm/vm_kern.h>
50#include <vm/vm_extern.h>
51#include <vm/uma.h>
52#include <vm/uma_int.h>
53
54extern int nfscl_ticks;
55extern int nfsrv_nfsuserd;
56extern struct nfssockreq nfsrv_nfsuserdsock;
57extern void (*nfsd_call_recall)(struct vnode *, int, struct ucred *,
58 struct thread *);
59extern int nfsrv_useacl;
60struct mount nfsv4root_mnt;
61int newnfs_numnfsd = 0;
62struct nfsstats newnfsstats;
63int nfs_numnfscbd = 0;
64char nfsv4_callbackaddr[INET6_ADDRSTRLEN];
65struct callout newnfsd_callout;
66void (*nfsd_call_servertimer)(void) = NULL;
67void (*ncl_call_invalcaches)(struct vnode *) = NULL;
68
69static int nfs_realign_test;
70static int nfs_realign_count;
71
72SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "New NFS filesystem");
73SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test,
74 0, "Number of realign tests done");
75SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count,
76 0, "Number of mbuf realignments done");
77SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW,
78 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr),
79 "NFSv4 callback addr for server to use");
80
81/*
82 * Defines for malloc
83 * (Here for FreeBSD, since they allocate storage.)
84 */
85MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache");
86MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id");
87MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state",
88 "NFSD V4 State (Openowner, Open, Lockowner, Delegation");
89MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock");
90MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file");
91MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string");
92MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map");
93MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header");
94MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle");
95MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner");
96MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open");
97MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation");
98MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client");
99MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner");
100MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock");
101MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "New nfs vnode");
102MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "New nfs Direct IO buffer");
103MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff",
104 "New NFS directory offset data");
105MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback",
106 "New NFS local lock rollback");
107
108/*
109 * Definition of mutex locks.
110 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list
111 * and assorted other nfsd structures.
112 * Giant is used to protect the nfsd list and count, which is just
113 * updated when nfsd's start/stop and is grabbed for nfsrvd_dorpc()
114 * for the VFS ops.
115 */
116struct mtx newnfsd_mtx;
117struct mtx nfs_sockl_mutex;
118struct mtx nfs_state_mutex;
119struct mtx nfs_nameid_mutex;
120struct mtx nfs_req_mutex;
121struct mtx nfs_slock_mutex;
122
123/* local functions */
124static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *);
125
126#ifdef __NO_STRICT_ALIGNMENT
127/*
128 * These architectures don't need re-alignment, so just return.
129 */
130void
131newnfs_realign(struct mbuf **pm)
132{
133
134 return;
135}
136#else /* !__NO_STRICT_ALIGNMENT */
137/*
138 * newnfs_realign:
139 *
140 * Check for badly aligned mbuf data and realign by copying the unaligned
141 * portion of the data into a new mbuf chain and freeing the portions
142 * of the old chain that were replaced.
143 *
144 * We cannot simply realign the data within the existing mbuf chain
145 * because the underlying buffers may contain other rpc commands and
146 * we cannot afford to overwrite them.
147 *
148 * We would prefer to avoid this situation entirely. The situation does
149 * not occur with NFS/UDP and is supposed to only occassionally occur
150 * with TCP. Use vfs.nfs.realign_count and realign_test to check this.
151 *
152 */
153void
154newnfs_realign(struct mbuf **pm)
155{
156 struct mbuf *m, *n;
157 int off, space;
158
159 ++nfs_realign_test;
160 while ((m = *pm) != NULL) {
161 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) {
162 /*
163 * NB: we can't depend on m_pkthdr.len to help us
164 * decide what to do here. May not be worth doing
165 * the m_length calculation as m_copyback will
166 * expand the mbuf chain below as needed.
167 */
168 space = m_length(m, NULL);
169 if (space >= MINCLSIZE) {
170 /* NB: m_copyback handles space > MCLBYTES */
171 n = m_getcl(M_WAITOK, MT_DATA, 0);
172 } else
173 n = m_get(M_WAITOK, MT_DATA);
174 if (n == NULL)
175 return;
176 /*
177 * Align the remainder of the mbuf chain.
178 */
179 n->m_len = 0;
180 off = 0;
181 while (m != NULL) {
182 m_copyback(n, off, m->m_len, mtod(m, caddr_t));
183 off += m->m_len;
184 m = m->m_next;
185 }
186 m_freem(*pm);
187 *pm = n;
188 ++nfs_realign_count;
189 break;
190 }
191 pm = &m->m_next;
192 }
193}
194#endif /* __NO_STRICT_ALIGNMENT */
195
196#ifdef notdef
197static void
198nfsrv_object_create(struct vnode *vp, struct thread *td)
199{
200
201 if (vp == NULL || vp->v_type != VREG)
202 return;
203 (void) vfs_object_create(vp, td, td->td_ucred);
204}
205#endif
206
207/*
208 * Look up a file name. Basically just initialize stuff and call namei().
209 */
210int
211nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p)
212{
213 int error;
214
215 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF | MPSAFE, UIO_USERSPACE, fname,
216 p);
217 error = namei(ndp);
218 if (!error) {
219 NDFREE(ndp, NDF_ONLY_PNBUF);
220 }
221 return (error);
222}
223
224/*
225 * Copy NFS uid, gids to the cred structure.
226 */
227void
228newnfs_copycred(struct nfscred *nfscr, struct ucred *cr)
229{
230
231 KASSERT(nfscr->nfsc_ngroups >= 0,
232 ("newnfs_copycred: negative nfsc_ngroups"));
233 cr->cr_uid = nfscr->nfsc_uid;
234 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups);
235}
236
237/*
238 * Map args from nfsmsleep() to msleep().
239 */
240int
241nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg,
242 struct timespec *ts)
243{
244 u_int64_t nsecval;
245 int error, timeo;
246
247 if (ts) {
248 timeo = hz * ts->tv_sec;
249 nsecval = (u_int64_t)ts->tv_nsec;
250 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) /
251 1000000000;
252 timeo += (int)nsecval;
253 } else {
254 timeo = 0;
255 }
256 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo);
257 return (error);
258}
259
260/*
261 * Get the file system info for the server. For now, just assume FFS.
262 */
263void
264nfsvno_getfs(struct nfsfsinfo *sip, int isdgram)
265{
266 int pref;
267
268 /*
269 * XXX
270 * There should be file system VFS OP(s) to get this information.
271 * For now, assume ufs.
272 */
273 if (isdgram)
274 pref = NFS_MAXDGRAMDATA;
275 else
276 pref = NFS_MAXDATA;
277 sip->fs_rtmax = NFS_MAXDATA;
278 sip->fs_rtpref = pref;
279 sip->fs_rtmult = NFS_FABLKSIZE;
280 sip->fs_wtmax = NFS_MAXDATA;
281 sip->fs_wtpref = pref;
282 sip->fs_wtmult = NFS_FABLKSIZE;
283 sip->fs_dtpref = pref;
284 sip->fs_maxfilesize = 0xffffffffffffffffull;
285 sip->fs_timedelta.tv_sec = 0;
286 sip->fs_timedelta.tv_nsec = 1;
287 sip->fs_properties = (NFSV3FSINFO_LINK |
288 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS |
289 NFSV3FSINFO_CANSETTIME);
290}
291
292/*
293 * Do the pathconf vnode op.
294 */
295int
296nfsvno_pathconf(struct vnode *vp, int flag, register_t *retf,
297 struct ucred *cred, struct thread *p)
298{
299 int error;
300
301 error = VOP_PATHCONF(vp, flag, retf);
302 if (error == EOPNOTSUPP || error == EINVAL) {
303 /*
304 * Some file systems return EINVAL for name arguments not
305 * supported and some return EOPNOTSUPP for this case.
306 * So the NFSv3 Pathconf RPC doesn't fail for these cases,
307 * just fake them.
308 */
309 switch (flag) {
310 case _PC_LINK_MAX:
311 *retf = LINK_MAX;
312 break;
313 case _PC_NAME_MAX:
314 *retf = NAME_MAX;
315 break;
316 case _PC_CHOWN_RESTRICTED:
317 *retf = 1;
318 break;
319 case _PC_NO_TRUNC:
320 *retf = 1;
321 break;
322 default:
323 /*
324 * Only happens if a _PC_xxx is added to the server,
325 * but this isn't updated.
326 */
327 *retf = 0;
328 printf("nfsrvd pathconf flag=%d not supp\n", flag);
329 };
330 error = 0;
331 }
| 36
37/*
38 * Functions that need to be different for different versions of BSD
39 * kernel should be kept here, along with any global storage specific
40 * to this BSD variant.
41 */
42#include <fs/nfs/nfsport.h>
43#include <sys/sysctl.h>
44#include <vm/vm.h>
45#include <vm/vm_object.h>
46#include <vm/vm_page.h>
47#include <vm/vm_param.h>
48#include <vm/vm_map.h>
49#include <vm/vm_kern.h>
50#include <vm/vm_extern.h>
51#include <vm/uma.h>
52#include <vm/uma_int.h>
53
54extern int nfscl_ticks;
55extern int nfsrv_nfsuserd;
56extern struct nfssockreq nfsrv_nfsuserdsock;
57extern void (*nfsd_call_recall)(struct vnode *, int, struct ucred *,
58 struct thread *);
59extern int nfsrv_useacl;
60struct mount nfsv4root_mnt;
61int newnfs_numnfsd = 0;
62struct nfsstats newnfsstats;
63int nfs_numnfscbd = 0;
64char nfsv4_callbackaddr[INET6_ADDRSTRLEN];
65struct callout newnfsd_callout;
66void (*nfsd_call_servertimer)(void) = NULL;
67void (*ncl_call_invalcaches)(struct vnode *) = NULL;
68
69static int nfs_realign_test;
70static int nfs_realign_count;
71
72SYSCTL_NODE(_vfs, OID_AUTO, nfs, CTLFLAG_RW, 0, "New NFS filesystem");
73SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_test, CTLFLAG_RW, &nfs_realign_test,
74 0, "Number of realign tests done");
75SYSCTL_INT(_vfs_nfs, OID_AUTO, realign_count, CTLFLAG_RW, &nfs_realign_count,
76 0, "Number of mbuf realignments done");
77SYSCTL_STRING(_vfs_nfs, OID_AUTO, callback_addr, CTLFLAG_RW,
78 nfsv4_callbackaddr, sizeof(nfsv4_callbackaddr),
79 "NFSv4 callback addr for server to use");
80
81/*
82 * Defines for malloc
83 * (Here for FreeBSD, since they allocate storage.)
84 */
85MALLOC_DEFINE(M_NEWNFSRVCACHE, "NFSD srvcache", "NFSD Server Request Cache");
86MALLOC_DEFINE(M_NEWNFSDCLIENT, "NFSD V4client", "NFSD V4 Client Id");
87MALLOC_DEFINE(M_NEWNFSDSTATE, "NFSD V4state",
88 "NFSD V4 State (Openowner, Open, Lockowner, Delegation");
89MALLOC_DEFINE(M_NEWNFSDLOCK, "NFSD V4lock", "NFSD V4 byte range lock");
90MALLOC_DEFINE(M_NEWNFSDLOCKFILE, "NFSD lckfile", "NFSD Open/Lock file");
91MALLOC_DEFINE(M_NEWNFSSTRING, "NFSD string", "NFSD V4 long string");
92MALLOC_DEFINE(M_NEWNFSUSERGROUP, "NFSD usrgroup", "NFSD V4 User/group map");
93MALLOC_DEFINE(M_NEWNFSDREQ, "NFS req", "NFS request header");
94MALLOC_DEFINE(M_NEWNFSFH, "NFS fh", "NFS file handle");
95MALLOC_DEFINE(M_NEWNFSCLOWNER, "NFSCL owner", "NFSCL Open Owner");
96MALLOC_DEFINE(M_NEWNFSCLOPEN, "NFSCL open", "NFSCL Open");
97MALLOC_DEFINE(M_NEWNFSCLDELEG, "NFSCL deleg", "NFSCL Delegation");
98MALLOC_DEFINE(M_NEWNFSCLCLIENT, "NFSCL client", "NFSCL Client");
99MALLOC_DEFINE(M_NEWNFSCLLOCKOWNER, "NFSCL lckown", "NFSCL Lock Owner");
100MALLOC_DEFINE(M_NEWNFSCLLOCK, "NFSCL lck", "NFSCL Lock");
101MALLOC_DEFINE(M_NEWNFSV4NODE, "NEWNFSnode", "New nfs vnode");
102MALLOC_DEFINE(M_NEWNFSDIRECTIO, "NEWdirectio", "New nfs Direct IO buffer");
103MALLOC_DEFINE(M_NEWNFSDIROFF, "NFSCL diroffdiroff",
104 "New NFS directory offset data");
105MALLOC_DEFINE(M_NEWNFSDROLLBACK, "NFSD rollback",
106 "New NFS local lock rollback");
107
108/*
109 * Definition of mutex locks.
110 * newnfsd_mtx is used in nfsrvd_nfsd() to protect the nfs socket list
111 * and assorted other nfsd structures.
112 * Giant is used to protect the nfsd list and count, which is just
113 * updated when nfsd's start/stop and is grabbed for nfsrvd_dorpc()
114 * for the VFS ops.
115 */
116struct mtx newnfsd_mtx;
117struct mtx nfs_sockl_mutex;
118struct mtx nfs_state_mutex;
119struct mtx nfs_nameid_mutex;
120struct mtx nfs_req_mutex;
121struct mtx nfs_slock_mutex;
122
123/* local functions */
124static int nfssvc_call(struct thread *, struct nfssvc_args *, struct ucred *);
125
126#ifdef __NO_STRICT_ALIGNMENT
127/*
128 * These architectures don't need re-alignment, so just return.
129 */
130void
131newnfs_realign(struct mbuf **pm)
132{
133
134 return;
135}
136#else /* !__NO_STRICT_ALIGNMENT */
137/*
138 * newnfs_realign:
139 *
140 * Check for badly aligned mbuf data and realign by copying the unaligned
141 * portion of the data into a new mbuf chain and freeing the portions
142 * of the old chain that were replaced.
143 *
144 * We cannot simply realign the data within the existing mbuf chain
145 * because the underlying buffers may contain other rpc commands and
146 * we cannot afford to overwrite them.
147 *
148 * We would prefer to avoid this situation entirely. The situation does
149 * not occur with NFS/UDP and is supposed to only occassionally occur
150 * with TCP. Use vfs.nfs.realign_count and realign_test to check this.
151 *
152 */
153void
154newnfs_realign(struct mbuf **pm)
155{
156 struct mbuf *m, *n;
157 int off, space;
158
159 ++nfs_realign_test;
160 while ((m = *pm) != NULL) {
161 if ((m->m_len & 0x3) || (mtod(m, intptr_t) & 0x3)) {
162 /*
163 * NB: we can't depend on m_pkthdr.len to help us
164 * decide what to do here. May not be worth doing
165 * the m_length calculation as m_copyback will
166 * expand the mbuf chain below as needed.
167 */
168 space = m_length(m, NULL);
169 if (space >= MINCLSIZE) {
170 /* NB: m_copyback handles space > MCLBYTES */
171 n = m_getcl(M_WAITOK, MT_DATA, 0);
172 } else
173 n = m_get(M_WAITOK, MT_DATA);
174 if (n == NULL)
175 return;
176 /*
177 * Align the remainder of the mbuf chain.
178 */
179 n->m_len = 0;
180 off = 0;
181 while (m != NULL) {
182 m_copyback(n, off, m->m_len, mtod(m, caddr_t));
183 off += m->m_len;
184 m = m->m_next;
185 }
186 m_freem(*pm);
187 *pm = n;
188 ++nfs_realign_count;
189 break;
190 }
191 pm = &m->m_next;
192 }
193}
194#endif /* __NO_STRICT_ALIGNMENT */
195
196#ifdef notdef
197static void
198nfsrv_object_create(struct vnode *vp, struct thread *td)
199{
200
201 if (vp == NULL || vp->v_type != VREG)
202 return;
203 (void) vfs_object_create(vp, td, td->td_ucred);
204}
205#endif
206
207/*
208 * Look up a file name. Basically just initialize stuff and call namei().
209 */
210int
211nfsrv_lookupfilename(struct nameidata *ndp, char *fname, NFSPROC_T *p)
212{
213 int error;
214
215 NDINIT(ndp, LOOKUP, FOLLOW | LOCKLEAF | MPSAFE, UIO_USERSPACE, fname,
216 p);
217 error = namei(ndp);
218 if (!error) {
219 NDFREE(ndp, NDF_ONLY_PNBUF);
220 }
221 return (error);
222}
223
224/*
225 * Copy NFS uid, gids to the cred structure.
226 */
227void
228newnfs_copycred(struct nfscred *nfscr, struct ucred *cr)
229{
230
231 KASSERT(nfscr->nfsc_ngroups >= 0,
232 ("newnfs_copycred: negative nfsc_ngroups"));
233 cr->cr_uid = nfscr->nfsc_uid;
234 crsetgroups(cr, nfscr->nfsc_ngroups, nfscr->nfsc_groups);
235}
236
237/*
238 * Map args from nfsmsleep() to msleep().
239 */
240int
241nfsmsleep(void *chan, void *mutex, int prio, const char *wmesg,
242 struct timespec *ts)
243{
244 u_int64_t nsecval;
245 int error, timeo;
246
247 if (ts) {
248 timeo = hz * ts->tv_sec;
249 nsecval = (u_int64_t)ts->tv_nsec;
250 nsecval = ((nsecval * ((u_int64_t)hz)) + 500000000) /
251 1000000000;
252 timeo += (int)nsecval;
253 } else {
254 timeo = 0;
255 }
256 error = msleep(chan, (struct mtx *)mutex, prio, wmesg, timeo);
257 return (error);
258}
259
260/*
261 * Get the file system info for the server. For now, just assume FFS.
262 */
263void
264nfsvno_getfs(struct nfsfsinfo *sip, int isdgram)
265{
266 int pref;
267
268 /*
269 * XXX
270 * There should be file system VFS OP(s) to get this information.
271 * For now, assume ufs.
272 */
273 if (isdgram)
274 pref = NFS_MAXDGRAMDATA;
275 else
276 pref = NFS_MAXDATA;
277 sip->fs_rtmax = NFS_MAXDATA;
278 sip->fs_rtpref = pref;
279 sip->fs_rtmult = NFS_FABLKSIZE;
280 sip->fs_wtmax = NFS_MAXDATA;
281 sip->fs_wtpref = pref;
282 sip->fs_wtmult = NFS_FABLKSIZE;
283 sip->fs_dtpref = pref;
284 sip->fs_maxfilesize = 0xffffffffffffffffull;
285 sip->fs_timedelta.tv_sec = 0;
286 sip->fs_timedelta.tv_nsec = 1;
287 sip->fs_properties = (NFSV3FSINFO_LINK |
288 NFSV3FSINFO_SYMLINK | NFSV3FSINFO_HOMOGENEOUS |
289 NFSV3FSINFO_CANSETTIME);
290}
291
292/*
293 * Do the pathconf vnode op.
294 */
295int
296nfsvno_pathconf(struct vnode *vp, int flag, register_t *retf,
297 struct ucred *cred, struct thread *p)
298{
299 int error;
300
301 error = VOP_PATHCONF(vp, flag, retf);
302 if (error == EOPNOTSUPP || error == EINVAL) {
303 /*
304 * Some file systems return EINVAL for name arguments not
305 * supported and some return EOPNOTSUPP for this case.
306 * So the NFSv3 Pathconf RPC doesn't fail for these cases,
307 * just fake them.
308 */
309 switch (flag) {
310 case _PC_LINK_MAX:
311 *retf = LINK_MAX;
312 break;
313 case _PC_NAME_MAX:
314 *retf = NAME_MAX;
315 break;
316 case _PC_CHOWN_RESTRICTED:
317 *retf = 1;
318 break;
319 case _PC_NO_TRUNC:
320 *retf = 1;
321 break;
322 default:
323 /*
324 * Only happens if a _PC_xxx is added to the server,
325 * but this isn't updated.
326 */
327 *retf = 0;
328 printf("nfsrvd pathconf flag=%d not supp\n", flag);
329 };
330 error = 0;
331 }
|
| 332 NFSEXITCODE(error);
|
332 return (error);
333}
334
335/* Fake nfsrv_atroot. Just return 0 */
336int
337nfsrv_atroot(struct vnode *vp, long *retp)
338{
339
340 return (0);
341}
342
343/*
344 * Set the credentials to refer to root.
345 * If only the various BSDen could agree on whether cr_gid is a separate
346 * field or cr_groups[0]...
347 */
348void
349newnfs_setroot(struct ucred *cred)
350{
351
352 cred->cr_uid = 0;
353 cred->cr_groups[0] = 0;
354 cred->cr_ngroups = 1;
355}
356
357/*
358 * Get the client credential. Used for Renew and recovery.
359 */
360struct ucred *
361newnfs_getcred(void)
362{
363 struct ucred *cred;
364 struct thread *td = curthread;
365
366 cred = crdup(td->td_ucred);
367 newnfs_setroot(cred);
368 return (cred);
369}
370
371/*
372 * Nfs timer routine
373 * Call the nfsd's timer function once/sec.
374 */
375void
376newnfs_timer(void *arg)
377{
378 static time_t lasttime = 0;
379 /*
380 * Call the server timer, if set up.
381 * The argument indicates if it is the next second and therefore
382 * leases should be checked.
383 */
384 if (lasttime != NFSD_MONOSEC) {
385 lasttime = NFSD_MONOSEC;
386 if (nfsd_call_servertimer != NULL)
387 (*nfsd_call_servertimer)();
388 }
389 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL);
390}
391
392
393/*
394 * Sleep for a short period of time unless errval == NFSERR_GRACE, where
395 * the sleep should be for 5 seconds.
396 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on
397 * an event that never gets a wakeup. Only return EINTR or 0.
398 */
399int
400nfs_catnap(int prio, int errval, const char *wmesg)
401{
402 static int non_event;
403 int ret;
404
405 if (errval == NFSERR_GRACE)
406 ret = tsleep(&non_event, prio, wmesg, 5 * hz);
407 else
408 ret = tsleep(&non_event, prio, wmesg, 1);
409 if (ret != EINTR)
410 ret = 0;
411 return (ret);
412}
413
414/*
415 * Get referral. For now, just fail.
416 */
417struct nfsreferral *
418nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno)
419{
420
421 return (NULL);
422}
423
424static int
425nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap)
426{
427 int error;
428
429 error = nfssvc_call(td, uap, td->td_ucred);
| 333 return (error);
334}
335
336/* Fake nfsrv_atroot. Just return 0 */
337int
338nfsrv_atroot(struct vnode *vp, long *retp)
339{
340
341 return (0);
342}
343
344/*
345 * Set the credentials to refer to root.
346 * If only the various BSDen could agree on whether cr_gid is a separate
347 * field or cr_groups[0]...
348 */
349void
350newnfs_setroot(struct ucred *cred)
351{
352
353 cred->cr_uid = 0;
354 cred->cr_groups[0] = 0;
355 cred->cr_ngroups = 1;
356}
357
358/*
359 * Get the client credential. Used for Renew and recovery.
360 */
361struct ucred *
362newnfs_getcred(void)
363{
364 struct ucred *cred;
365 struct thread *td = curthread;
366
367 cred = crdup(td->td_ucred);
368 newnfs_setroot(cred);
369 return (cred);
370}
371
372/*
373 * Nfs timer routine
374 * Call the nfsd's timer function once/sec.
375 */
376void
377newnfs_timer(void *arg)
378{
379 static time_t lasttime = 0;
380 /*
381 * Call the server timer, if set up.
382 * The argument indicates if it is the next second and therefore
383 * leases should be checked.
384 */
385 if (lasttime != NFSD_MONOSEC) {
386 lasttime = NFSD_MONOSEC;
387 if (nfsd_call_servertimer != NULL)
388 (*nfsd_call_servertimer)();
389 }
390 callout_reset(&newnfsd_callout, nfscl_ticks, newnfs_timer, NULL);
391}
392
393
394/*
395 * Sleep for a short period of time unless errval == NFSERR_GRACE, where
396 * the sleep should be for 5 seconds.
397 * Since lbolt doesn't exist in FreeBSD-CURRENT, just use a timeout on
398 * an event that never gets a wakeup. Only return EINTR or 0.
399 */
400int
401nfs_catnap(int prio, int errval, const char *wmesg)
402{
403 static int non_event;
404 int ret;
405
406 if (errval == NFSERR_GRACE)
407 ret = tsleep(&non_event, prio, wmesg, 5 * hz);
408 else
409 ret = tsleep(&non_event, prio, wmesg, 1);
410 if (ret != EINTR)
411 ret = 0;
412 return (ret);
413}
414
415/*
416 * Get referral. For now, just fail.
417 */
418struct nfsreferral *
419nfsv4root_getreferral(struct vnode *vp, struct vnode *dvp, u_int32_t fileno)
420{
421
422 return (NULL);
423}
424
425static int
426nfssvc_nfscommon(struct thread *td, struct nfssvc_args *uap)
427{
428 int error;
429
430 error = nfssvc_call(td, uap, td->td_ucred);
|
| 431 NFSEXITCODE(error);
|
430 return (error);
431}
432
433static int
434nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred)
435{
436 int error = EINVAL;
437 struct nfsd_idargs nid;
438
439 if (uap->flag & NFSSVC_IDNAME) {
440 error = copyin(uap->argp, (caddr_t)&nid, sizeof (nid));
441 if (error)
| 432 return (error);
433}
434
435static int
436nfssvc_call(struct thread *p, struct nfssvc_args *uap, struct ucred *cred)
437{
438 int error = EINVAL;
439 struct nfsd_idargs nid;
440
441 if (uap->flag & NFSSVC_IDNAME) {
442 error = copyin(uap->argp, (caddr_t)&nid, sizeof (nid));
443 if (error)
|
442 return (error);
| 444 goto out;
|
443 error = nfssvc_idname(&nid);
| 445 error = nfssvc_idname(&nid);
|
444 return (error);
| 446 goto out;
|
445 } else if (uap->flag & NFSSVC_GETSTATS) {
446 error = copyout(&newnfsstats,
447 CAST_USER_ADDR_T(uap->argp), sizeof (newnfsstats));
448 if (error == 0) {
449 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) {
450 newnfsstats.attrcache_hits = 0;
451 newnfsstats.attrcache_misses = 0;
452 newnfsstats.lookupcache_hits = 0;
453 newnfsstats.lookupcache_misses = 0;
454 newnfsstats.direofcache_hits = 0;
455 newnfsstats.direofcache_misses = 0;
456 newnfsstats.accesscache_hits = 0;
457 newnfsstats.accesscache_misses = 0;
458 newnfsstats.biocache_reads = 0;
459 newnfsstats.read_bios = 0;
460 newnfsstats.read_physios = 0;
461 newnfsstats.biocache_writes = 0;
462 newnfsstats.write_bios = 0;
463 newnfsstats.write_physios = 0;
464 newnfsstats.biocache_readlinks = 0;
465 newnfsstats.readlink_bios = 0;
466 newnfsstats.biocache_readdirs = 0;
467 newnfsstats.readdir_bios = 0;
468 newnfsstats.rpcretries = 0;
469 newnfsstats.rpcrequests = 0;
470 newnfsstats.rpctimeouts = 0;
471 newnfsstats.rpcunexpected = 0;
472 newnfsstats.rpcinvalid = 0;
473 bzero(newnfsstats.rpccnt,
474 sizeof(newnfsstats.rpccnt));
475 }
476 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) {
477 newnfsstats.srvrpc_errs = 0;
478 newnfsstats.srv_errs = 0;
479 newnfsstats.srvcache_inproghits = 0;
480 newnfsstats.srvcache_idemdonehits = 0;
481 newnfsstats.srvcache_nonidemdonehits = 0;
482 newnfsstats.srvcache_misses = 0;
483 newnfsstats.srvcache_tcppeak = 0;
484 newnfsstats.srvcache_size = 0;
485 newnfsstats.srvclients = 0;
486 newnfsstats.srvopenowners = 0;
487 newnfsstats.srvopens = 0;
488 newnfsstats.srvlockowners = 0;
489 newnfsstats.srvlocks = 0;
490 newnfsstats.srvdelegates = 0;
491 newnfsstats.clopenowners = 0;
492 newnfsstats.clopens = 0;
493 newnfsstats.cllockowners = 0;
494 newnfsstats.cllocks = 0;
495 newnfsstats.cldelegates = 0;
496 newnfsstats.cllocalopenowners = 0;
497 newnfsstats.cllocalopens = 0;
498 newnfsstats.cllocallockowners = 0;
499 newnfsstats.cllocallocks = 0;
500 bzero(newnfsstats.srvrpccnt,
501 sizeof(newnfsstats.srvrpccnt));
502 bzero(newnfsstats.cbrpccnt,
503 sizeof(newnfsstats.cbrpccnt));
504 }
505 }
| 447 } else if (uap->flag & NFSSVC_GETSTATS) {
448 error = copyout(&newnfsstats,
449 CAST_USER_ADDR_T(uap->argp), sizeof (newnfsstats));
450 if (error == 0) {
451 if ((uap->flag & NFSSVC_ZEROCLTSTATS) != 0) {
452 newnfsstats.attrcache_hits = 0;
453 newnfsstats.attrcache_misses = 0;
454 newnfsstats.lookupcache_hits = 0;
455 newnfsstats.lookupcache_misses = 0;
456 newnfsstats.direofcache_hits = 0;
457 newnfsstats.direofcache_misses = 0;
458 newnfsstats.accesscache_hits = 0;
459 newnfsstats.accesscache_misses = 0;
460 newnfsstats.biocache_reads = 0;
461 newnfsstats.read_bios = 0;
462 newnfsstats.read_physios = 0;
463 newnfsstats.biocache_writes = 0;
464 newnfsstats.write_bios = 0;
465 newnfsstats.write_physios = 0;
466 newnfsstats.biocache_readlinks = 0;
467 newnfsstats.readlink_bios = 0;
468 newnfsstats.biocache_readdirs = 0;
469 newnfsstats.readdir_bios = 0;
470 newnfsstats.rpcretries = 0;
471 newnfsstats.rpcrequests = 0;
472 newnfsstats.rpctimeouts = 0;
473 newnfsstats.rpcunexpected = 0;
474 newnfsstats.rpcinvalid = 0;
475 bzero(newnfsstats.rpccnt,
476 sizeof(newnfsstats.rpccnt));
477 }
478 if ((uap->flag & NFSSVC_ZEROSRVSTATS) != 0) {
479 newnfsstats.srvrpc_errs = 0;
480 newnfsstats.srv_errs = 0;
481 newnfsstats.srvcache_inproghits = 0;
482 newnfsstats.srvcache_idemdonehits = 0;
483 newnfsstats.srvcache_nonidemdonehits = 0;
484 newnfsstats.srvcache_misses = 0;
485 newnfsstats.srvcache_tcppeak = 0;
486 newnfsstats.srvcache_size = 0;
487 newnfsstats.srvclients = 0;
488 newnfsstats.srvopenowners = 0;
489 newnfsstats.srvopens = 0;
490 newnfsstats.srvlockowners = 0;
491 newnfsstats.srvlocks = 0;
492 newnfsstats.srvdelegates = 0;
493 newnfsstats.clopenowners = 0;
494 newnfsstats.clopens = 0;
495 newnfsstats.cllockowners = 0;
496 newnfsstats.cllocks = 0;
497 newnfsstats.cldelegates = 0;
498 newnfsstats.cllocalopenowners = 0;
499 newnfsstats.cllocalopens = 0;
500 newnfsstats.cllocallockowners = 0;
501 newnfsstats.cllocallocks = 0;
502 bzero(newnfsstats.srvrpccnt,
503 sizeof(newnfsstats.srvrpccnt));
504 bzero(newnfsstats.cbrpccnt,
505 sizeof(newnfsstats.cbrpccnt));
506 }
507 }
|
506 return (error);
| 508 goto out;
|
507 } else if (uap->flag & NFSSVC_NFSUSERDPORT) {
508 u_short sockport;
509
510 error = copyin(uap->argp, (caddr_t)&sockport,
511 sizeof (u_short));
512 if (!error)
513 error = nfsrv_nfsuserdport(sockport, p);
514 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) {
515 nfsrv_nfsuserddelport();
516 error = 0;
517 }
| 509 } else if (uap->flag & NFSSVC_NFSUSERDPORT) {
510 u_short sockport;
511
512 error = copyin(uap->argp, (caddr_t)&sockport,
513 sizeof (u_short));
514 if (!error)
515 error = nfsrv_nfsuserdport(sockport, p);
516 } else if (uap->flag & NFSSVC_NFSUSERDDELPORT) {
517 nfsrv_nfsuserddelport();
518 error = 0;
519 }
|
| 520
521out:
522 NFSEXITCODE(error);
|
518 return (error);
519}
520
521/*
522 * called by all three modevent routines, so that it gets things
523 * initialized soon enough.
524 */
525void
526newnfs_portinit(void)
527{
528 static int inited = 0;
529
530 if (inited)
531 return;
532 inited = 1;
533 /* Initialize SMP locks used by both client and server. */
534 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF);
535 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF);
536}
537
538/*
539 * Determine if the file system supports NFSv4 ACLs.
540 * Return 1 if it does, 0 otherwise.
541 */
542int
543nfs_supportsnfsv4acls(struct vnode *vp)
544{
545 int error;
546 register_t retval;
547
548 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls");
549
550 if (nfsrv_useacl == 0)
551 return (0);
552 error = nfsvno_pathconf(vp, _PC_ACL_NFS4, &retval, NULL, NULL);
553 if (error == 0 && retval != 0)
554 return (1);
555 return (0);
556}
557
558extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *);
559
560/*
561 * Called once to initialize data structures...
562 */
563static int
564nfscommon_modevent(module_t mod, int type, void *data)
565{
566 int error = 0;
567 static int loaded = 0;
568
569 switch (type) {
570 case MOD_LOAD:
571 if (loaded)
| 523 return (error);
524}
525
526/*
527 * called by all three modevent routines, so that it gets things
528 * initialized soon enough.
529 */
530void
531newnfs_portinit(void)
532{
533 static int inited = 0;
534
535 if (inited)
536 return;
537 inited = 1;
538 /* Initialize SMP locks used by both client and server. */
539 mtx_init(&newnfsd_mtx, "newnfsd_mtx", NULL, MTX_DEF);
540 mtx_init(&nfs_state_mutex, "nfs_state_mutex", NULL, MTX_DEF);
541}
542
543/*
544 * Determine if the file system supports NFSv4 ACLs.
545 * Return 1 if it does, 0 otherwise.
546 */
547int
548nfs_supportsnfsv4acls(struct vnode *vp)
549{
550 int error;
551 register_t retval;
552
553 ASSERT_VOP_LOCKED(vp, "nfs supports nfsv4acls");
554
555 if (nfsrv_useacl == 0)
556 return (0);
557 error = nfsvno_pathconf(vp, _PC_ACL_NFS4, &retval, NULL, NULL);
558 if (error == 0 && retval != 0)
559 return (1);
560 return (0);
561}
562
563extern int (*nfsd_call_nfscommon)(struct thread *, struct nfssvc_args *);
564
565/*
566 * Called once to initialize data structures...
567 */
568static int
569nfscommon_modevent(module_t mod, int type, void *data)
570{
571 int error = 0;
572 static int loaded = 0;
573
574 switch (type) {
575 case MOD_LOAD:
576 if (loaded)
|
572 return (0);
| 577 goto out;
|
573 newnfs_portinit();
574 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF);
575 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF);
576 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF);
577 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF);
578 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL,
579 MTX_DEF);
580 callout_init(&newnfsd_callout, CALLOUT_MPSAFE);
581 newnfs_init();
582 nfsd_call_nfscommon = nfssvc_nfscommon;
583 loaded = 1;
584 break;
585
586 case MOD_UNLOAD:
587 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != 0 ||
588 nfs_numnfscbd != 0) {
589 error = EBUSY;
590 break;
591 }
592
593 nfsd_call_nfscommon = NULL;
594 callout_drain(&newnfsd_callout);
595 /* and get rid of the mutexes */
596 mtx_destroy(&nfs_nameid_mutex);
597 mtx_destroy(&newnfsd_mtx);
598 mtx_destroy(&nfs_state_mutex);
599 mtx_destroy(&nfs_sockl_mutex);
600 mtx_destroy(&nfs_slock_mutex);
601 mtx_destroy(&nfs_req_mutex);
602 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx);
603 loaded = 0;
604 break;
605 default:
606 error = EOPNOTSUPP;
607 break;
608 }
| 578 newnfs_portinit();
579 mtx_init(&nfs_nameid_mutex, "nfs_nameid_mutex", NULL, MTX_DEF);
580 mtx_init(&nfs_sockl_mutex, "nfs_sockl_mutex", NULL, MTX_DEF);
581 mtx_init(&nfs_slock_mutex, "nfs_slock_mutex", NULL, MTX_DEF);
582 mtx_init(&nfs_req_mutex, "nfs_req_mutex", NULL, MTX_DEF);
583 mtx_init(&nfsrv_nfsuserdsock.nr_mtx, "nfsuserd", NULL,
584 MTX_DEF);
585 callout_init(&newnfsd_callout, CALLOUT_MPSAFE);
586 newnfs_init();
587 nfsd_call_nfscommon = nfssvc_nfscommon;
588 loaded = 1;
589 break;
590
591 case MOD_UNLOAD:
592 if (newnfs_numnfsd != 0 || nfsrv_nfsuserd != 0 ||
593 nfs_numnfscbd != 0) {
594 error = EBUSY;
595 break;
596 }
597
598 nfsd_call_nfscommon = NULL;
599 callout_drain(&newnfsd_callout);
600 /* and get rid of the mutexes */
601 mtx_destroy(&nfs_nameid_mutex);
602 mtx_destroy(&newnfsd_mtx);
603 mtx_destroy(&nfs_state_mutex);
604 mtx_destroy(&nfs_sockl_mutex);
605 mtx_destroy(&nfs_slock_mutex);
606 mtx_destroy(&nfs_req_mutex);
607 mtx_destroy(&nfsrv_nfsuserdsock.nr_mtx);
608 loaded = 0;
609 break;
610 default:
611 error = EOPNOTSUPP;
612 break;
613 }
|
| 614
615out:
616 NFSEXITCODE(error);
|
609 return error;
610}
611static moduledata_t nfscommon_mod = {
612 "nfscommon",
613 nfscommon_modevent,
614 NULL,
615};
616DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY);
617
618/* So that loader and kldload(2) can find us, wherever we are.. */
619MODULE_VERSION(nfscommon, 1);
620MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1);
621MODULE_DEPEND(nfscommon, krpc, 1, 1, 1);
622
| 617 return error;
618}
619static moduledata_t nfscommon_mod = {
620 "nfscommon",
621 nfscommon_modevent,
622 NULL,
623};
624DECLARE_MODULE(nfscommon, nfscommon_mod, SI_SUB_VFS, SI_ORDER_ANY);
625
626/* So that loader and kldload(2) can find us, wherever we are.. */
627MODULE_VERSION(nfscommon, 1);
628MODULE_DEPEND(nfscommon, nfssvc, 1, 1, 1);
629MODULE_DEPEND(nfscommon, krpc, 1, 1, 1);
630
|