Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/nfs/nfs_server.c @ 12553:e64e5d843075
6937869 seeing some memory leaks from xdrrdma_create()
6920403 NFS/RDMA NFSv3 client directio READs fail for read size between 869 - 1023 bytes
6935135 NFS/RDMA ipv6 mount incorrectly if client's hostname in access_list
author | Karen Rochford <Karen.Rochford@Sun.COM> |
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date | Fri, 04 Jun 2010 08:57:54 -0500 |
parents | 32a585d893ca |
children | 6bec9720e054 |
rev | line source |
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0 | 1 /* |
2 * CDDL HEADER START | |
3 * | |
4 * The contents of this file are subject to the terms of the | |
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5 * Common Development and Distribution License (the "License"). |
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6 * You may not use this file except in compliance with the License. |
0 | 7 * |
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 * or http://www.opensolaris.org/os/licensing. | |
10 * See the License for the specific language governing permissions | |
11 * and limitations under the License. | |
12 * | |
13 * When distributing Covered Code, include this CDDL HEADER in each | |
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 * If applicable, add the following below this CDDL HEADER, with the | |
16 * fields enclosed by brackets "[]" replaced with your own identifying | |
17 * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 * | |
19 * CDDL HEADER END | |
20 */ | |
21 /* | |
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22 * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 23 */ |
24 | |
25 /* | |
26 * Copyright (c) 1983,1984,1985,1986,1987,1988,1989 AT&T. | |
27 * All rights reserved. | |
28 * Use is subject to license terms. | |
29 */ | |
30 | |
31 #include <sys/param.h> | |
32 #include <sys/types.h> | |
33 #include <sys/systm.h> | |
34 #include <sys/cred.h> | |
35 #include <sys/proc.h> | |
36 #include <sys/user.h> | |
37 #include <sys/buf.h> | |
38 #include <sys/vfs.h> | |
39 #include <sys/vnode.h> | |
40 #include <sys/pathname.h> | |
41 #include <sys/uio.h> | |
42 #include <sys/file.h> | |
43 #include <sys/stat.h> | |
44 #include <sys/errno.h> | |
45 #include <sys/socket.h> | |
46 #include <sys/sysmacros.h> | |
47 #include <sys/siginfo.h> | |
48 #include <sys/tiuser.h> | |
49 #include <sys/statvfs.h> | |
50 #include <sys/stream.h> | |
51 #include <sys/strsubr.h> | |
52 #include <sys/stropts.h> | |
53 #include <sys/timod.h> | |
54 #include <sys/t_kuser.h> | |
55 #include <sys/kmem.h> | |
56 #include <sys/kstat.h> | |
57 #include <sys/dirent.h> | |
58 #include <sys/cmn_err.h> | |
59 #include <sys/debug.h> | |
60 #include <sys/unistd.h> | |
61 #include <sys/vtrace.h> | |
62 #include <sys/mode.h> | |
63 #include <sys/acl.h> | |
64 #include <sys/sdt.h> | |
65 | |
66 #include <rpc/types.h> | |
67 #include <rpc/auth.h> | |
68 #include <rpc/auth_unix.h> | |
69 #include <rpc/auth_des.h> | |
70 #include <rpc/svc.h> | |
71 #include <rpc/xdr.h> | |
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72 #include <rpc/rpc_rdma.h> |
0 | 73 |
74 #include <nfs/nfs.h> | |
75 #include <nfs/export.h> | |
76 #include <nfs/nfssys.h> | |
77 #include <nfs/nfs_clnt.h> | |
78 #include <nfs/nfs_acl.h> | |
79 #include <nfs/nfs_log.h> | |
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80 #include <nfs/nfs_cmd.h> |
0 | 81 #include <nfs/lm.h> |
74 | 82 #include <nfs/nfs_dispatch.h> |
83 #include <nfs/nfs4_drc.h> | |
0 | 84 |
85 #include <sys/modctl.h> | |
86 #include <sys/cladm.h> | |
87 #include <sys/clconf.h> | |
88 | |
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89 #include <sys/tsol/label.h> |
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90 |
0 | 91 #define MAXHOST 32 |
92 const char *kinet_ntop6(uchar_t *, char *, size_t); | |
93 | |
94 /* | |
95 * Module linkage information. | |
96 */ | |
97 | |
98 static struct modlmisc modlmisc = { | |
99 &mod_miscops, "NFS server module" | |
100 }; | |
101 | |
102 static struct modlinkage modlinkage = { | |
103 MODREV_1, (void *)&modlmisc, NULL | |
104 }; | |
105 | |
106 char _depends_on[] = "misc/klmmod"; | |
107 | |
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108 kmem_cache_t *nfs_xuio_cache; |
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109 int nfs_loaned_buffers = 0; |
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110 |
0 | 111 int |
112 _init(void) | |
113 { | |
114 int status; | |
115 | |
116 if ((status = nfs_srvinit()) != 0) { | |
117 cmn_err(CE_WARN, "_init: nfs_srvinit failed"); | |
118 return (status); | |
119 } | |
120 | |
121 status = mod_install((struct modlinkage *)&modlinkage); | |
122 if (status != 0) { | |
123 /* | |
124 * Could not load module, cleanup previous | |
125 * initialization work. | |
126 */ | |
127 nfs_srvfini(); | |
128 } | |
129 | |
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130 /* |
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131 * Initialise some placeholders for nfssys() calls. These have |
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132 * to be declared by the nfs module, since that handles nfssys() |
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133 * calls - also used by NFS clients - but are provided by this |
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134 * nfssrv module. These also then serve as confirmation to the |
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135 * relevant code in nfs that nfssrv has been loaded, as they're |
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136 * initially NULL. |
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137 */ |
0 | 138 nfs_srv_quiesce_func = nfs_srv_quiesce_all; |
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139 nfs_srv_dss_func = rfs4_dss_setpaths; |
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140 |
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141 /* setup DSS paths here; must be done before initial server startup */ |
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142 rfs4_dss_paths = rfs4_dss_oldpaths = NULL; |
0 | 143 |
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144 /* initialize the copy reduction caches */ |
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145 |
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146 nfs_xuio_cache = kmem_cache_create("nfs_xuio_cache", |
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147 sizeof (nfs_xuio_t), 0, NULL, NULL, NULL, NULL, NULL, 0); |
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148 |
0 | 149 return (status); |
150 } | |
151 | |
152 int | |
153 _fini() | |
154 { | |
155 return (EBUSY); | |
156 } | |
157 | |
158 int | |
159 _info(struct modinfo *modinfop) | |
160 { | |
161 return (mod_info(&modlinkage, modinfop)); | |
162 } | |
163 | |
164 /* | |
165 * PUBLICFH_CHECK() checks if the dispatch routine supports | |
166 * RPC_PUBLICFH_OK, if the filesystem is exported public, and if the | |
167 * incoming request is using the public filehandle. The check duplicates | |
168 * the exportmatch() call done in checkexport(), and we should consider | |
169 * modifying those routines to avoid the duplication. For now, we optimize | |
170 * by calling exportmatch() only after checking that the dispatch routine | |
171 * supports RPC_PUBLICFH_OK, and if the filesystem is explicitly exported | |
172 * public (i.e., not the placeholder). | |
173 */ | |
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174 #define PUBLICFH_CHECK(disp, exi, fsid, xfid) \ |
0 | 175 ((disp->dis_flags & RPC_PUBLICFH_OK) && \ |
176 ((exi->exi_export.ex_flags & EX_PUBLIC) || \ | |
177 (exi == exi_public && exportmatch(exi_root, \ | |
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178 fsid, xfid)))) |
0 | 179 |
180 static void nfs_srv_shutdown_all(int); | |
181 static void rfs4_server_start(int); | |
182 static void nullfree(void); | |
183 static void rfs_dispatch(struct svc_req *, SVCXPRT *); | |
184 static void acl_dispatch(struct svc_req *, SVCXPRT *); | |
185 static void common_dispatch(struct svc_req *, SVCXPRT *, | |
186 rpcvers_t, rpcvers_t, char *, | |
187 struct rpc_disptable *); | |
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188 static void hanfsv4_failover(void); |
0 | 189 static int checkauth(struct exportinfo *, struct svc_req *, cred_t *, int, |
190 bool_t); | |
191 static char *client_name(struct svc_req *req); | |
192 static char *client_addr(struct svc_req *req, char *buf); | |
193 extern int sec_svc_getcred(struct svc_req *, cred_t *cr, char **, int *); | |
194 extern bool_t sec_svc_inrootlist(int, caddr_t, int, caddr_t *); | |
195 | |
196 #define NFSLOG_COPY_NETBUF(exi, xprt, nb) { \ | |
197 (nb)->maxlen = (xprt)->xp_rtaddr.maxlen; \ | |
198 (nb)->len = (xprt)->xp_rtaddr.len; \ | |
199 (nb)->buf = kmem_alloc((nb)->len, KM_SLEEP); \ | |
200 bcopy((xprt)->xp_rtaddr.buf, (nb)->buf, (nb)->len); \ | |
201 } | |
202 | |
203 /* | |
204 * Public Filehandle common nfs routines | |
205 */ | |
206 static int MCLpath(char **); | |
207 static void URLparse(char *); | |
208 | |
209 /* | |
210 * NFS callout table. | |
211 * This table is used by svc_getreq() to dispatch a request with | |
212 * a given prog/vers pair to an appropriate service provider | |
213 * dispatch routine. | |
214 * | |
215 * NOTE: ordering is relied upon below when resetting the version min/max | |
216 * for NFS_PROGRAM. Careful, if this is ever changed. | |
217 */ | |
218 static SVC_CALLOUT __nfs_sc_clts[] = { | |
219 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
220 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
221 }; | |
222 | |
223 static SVC_CALLOUT_TABLE nfs_sct_clts = { | |
224 sizeof (__nfs_sc_clts) / sizeof (__nfs_sc_clts[0]), FALSE, | |
225 __nfs_sc_clts | |
226 }; | |
227 | |
228 static SVC_CALLOUT __nfs_sc_cots[] = { | |
229 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
230 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
231 }; | |
232 | |
233 static SVC_CALLOUT_TABLE nfs_sct_cots = { | |
234 sizeof (__nfs_sc_cots) / sizeof (__nfs_sc_cots[0]), FALSE, __nfs_sc_cots | |
235 }; | |
236 | |
237 static SVC_CALLOUT __nfs_sc_rdma[] = { | |
238 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
239 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
240 }; | |
241 | |
242 static SVC_CALLOUT_TABLE nfs_sct_rdma = { | |
243 sizeof (__nfs_sc_rdma) / sizeof (__nfs_sc_rdma[0]), FALSE, __nfs_sc_rdma | |
244 }; | |
245 rpcvers_t nfs_versmin = NFS_VERSMIN_DEFAULT; | |
246 rpcvers_t nfs_versmax = NFS_VERSMAX_DEFAULT; | |
247 | |
248 /* | |
249 * Used to track the state of the server so that initialization | |
250 * can be done properly. | |
251 */ | |
252 typedef enum { | |
253 NFS_SERVER_STOPPED, /* server state destroyed */ | |
254 NFS_SERVER_STOPPING, /* server state being destroyed */ | |
255 NFS_SERVER_RUNNING, | |
256 NFS_SERVER_QUIESCED, /* server state preserved */ | |
257 NFS_SERVER_OFFLINE /* server pool offline */ | |
258 } nfs_server_running_t; | |
259 | |
260 static nfs_server_running_t nfs_server_upordown; | |
261 static kmutex_t nfs_server_upordown_lock; | |
262 static kcondvar_t nfs_server_upordown_cv; | |
263 | |
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264 /* |
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265 * DSS: distributed stable storage |
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266 * lists of all DSS paths: current, and before last warmstart |
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267 */ |
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268 nvlist_t *rfs4_dss_paths, *rfs4_dss_oldpaths; |
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269 |
74 | 270 int rfs4_dispatch(struct rpcdisp *, struct svc_req *, SVCXPRT *, char *); |
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271 bool_t rfs4_minorvers_mismatch(struct svc_req *, SVCXPRT *, void *); |
74 | 272 |
0 | 273 /* |
274 * RDMA wait variables. | |
275 */ | |
276 static kcondvar_t rdma_wait_cv; | |
277 static kmutex_t rdma_wait_mutex; | |
278 | |
279 /* | |
280 * Will be called at the point the server pool is being unregistered | |
281 * from the pool list. From that point onwards, the pool is waiting | |
282 * to be drained and as such the server state is stale and pertains | |
283 * to the old instantiation of the NFS server pool. | |
284 */ | |
285 void | |
286 nfs_srv_offline(void) | |
287 { | |
288 mutex_enter(&nfs_server_upordown_lock); | |
289 if (nfs_server_upordown == NFS_SERVER_RUNNING) { | |
290 nfs_server_upordown = NFS_SERVER_OFFLINE; | |
291 } | |
292 mutex_exit(&nfs_server_upordown_lock); | |
293 } | |
294 | |
295 /* | |
296 * Will be called at the point the server pool is being destroyed so | |
297 * all transports have been closed and no service threads are in | |
298 * existence. | |
299 * | |
300 * If we quiesce the server, we're shutting it down without destroying the | |
301 * server state. This allows it to warm start subsequently. | |
302 */ | |
303 void | |
304 nfs_srv_stop_all(void) | |
305 { | |
306 int quiesce = 0; | |
307 nfs_srv_shutdown_all(quiesce); | |
308 } | |
309 | |
310 /* | |
311 * This alternative shutdown routine can be requested via nfssys() | |
312 */ | |
313 void | |
314 nfs_srv_quiesce_all(void) | |
315 { | |
316 int quiesce = 1; | |
317 nfs_srv_shutdown_all(quiesce); | |
318 } | |
319 | |
320 static void | |
321 nfs_srv_shutdown_all(int quiesce) { | |
322 mutex_enter(&nfs_server_upordown_lock); | |
323 if (quiesce) { | |
324 if (nfs_server_upordown == NFS_SERVER_RUNNING || | |
325 nfs_server_upordown == NFS_SERVER_OFFLINE) { | |
326 nfs_server_upordown = NFS_SERVER_QUIESCED; | |
327 cv_signal(&nfs_server_upordown_cv); | |
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328 |
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329 /* reset DSS state, for subsequent warm restart */ |
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330 rfs4_dss_numnewpaths = 0; |
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331 rfs4_dss_newpaths = NULL; |
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332 |
0 | 333 cmn_err(CE_NOTE, "nfs_server: server is now quiesced; " |
334 "NFSv4 state has been preserved"); | |
335 } | |
336 } else { | |
337 if (nfs_server_upordown == NFS_SERVER_OFFLINE) { | |
338 nfs_server_upordown = NFS_SERVER_STOPPING; | |
339 mutex_exit(&nfs_server_upordown_lock); | |
340 rfs4_state_fini(); | |
74 | 341 rfs4_fini_drc(nfs4_drc); |
0 | 342 mutex_enter(&nfs_server_upordown_lock); |
343 nfs_server_upordown = NFS_SERVER_STOPPED; | |
344 cv_signal(&nfs_server_upordown_cv); | |
345 } | |
346 } | |
347 mutex_exit(&nfs_server_upordown_lock); | |
348 } | |
349 | |
350 static int | |
351 nfs_srv_set_sc_versions(struct file *fp, SVC_CALLOUT_TABLE **sctpp, | |
352 rpcvers_t versmin, rpcvers_t versmax) | |
353 { | |
354 struct strioctl strioc; | |
355 struct T_info_ack tinfo; | |
356 int error, retval; | |
357 | |
358 /* | |
359 * Find out what type of transport this is. | |
360 */ | |
361 strioc.ic_cmd = TI_GETINFO; | |
362 strioc.ic_timout = -1; | |
363 strioc.ic_len = sizeof (tinfo); | |
364 strioc.ic_dp = (char *)&tinfo; | |
365 tinfo.PRIM_type = T_INFO_REQ; | |
366 | |
367 error = strioctl(fp->f_vnode, I_STR, (intptr_t)&strioc, 0, K_TO_K, | |
368 CRED(), &retval); | |
369 if (error || retval) | |
370 return (error); | |
371 | |
372 /* | |
373 * Based on our query of the transport type... | |
374 * | |
375 * Reset the min/max versions based on the caller's request | |
376 * NOTE: This assumes that NFS_PROGRAM is first in the array!! | |
377 * And the second entry is the NFS_ACL_PROGRAM. | |
378 */ | |
379 switch (tinfo.SERV_type) { | |
380 case T_CLTS: | |
381 if (versmax == NFS_V4) | |
382 return (EINVAL); | |
383 __nfs_sc_clts[0].sc_versmin = versmin; | |
384 __nfs_sc_clts[0].sc_versmax = versmax; | |
385 __nfs_sc_clts[1].sc_versmin = versmin; | |
386 __nfs_sc_clts[1].sc_versmax = versmax; | |
387 *sctpp = &nfs_sct_clts; | |
388 break; | |
389 case T_COTS: | |
390 case T_COTS_ORD: | |
391 __nfs_sc_cots[0].sc_versmin = versmin; | |
392 __nfs_sc_cots[0].sc_versmax = versmax; | |
393 /* For the NFS_ACL program, check the max version */ | |
394 if (versmax > NFS_ACL_VERSMAX) | |
395 versmax = NFS_ACL_VERSMAX; | |
396 __nfs_sc_cots[1].sc_versmin = versmin; | |
397 __nfs_sc_cots[1].sc_versmax = versmax; | |
398 *sctpp = &nfs_sct_cots; | |
399 break; | |
400 default: | |
401 error = EINVAL; | |
402 } | |
403 | |
404 return (error); | |
405 } | |
406 | |
407 /* | |
408 * NFS Server system call. | |
409 * Does all of the work of running a NFS server. | |
410 * uap->fd is the fd of an open transport provider | |
411 */ | |
412 int | |
413 nfs_svc(struct nfs_svc_args *arg, model_t model) | |
414 { | |
415 file_t *fp; | |
416 SVCMASTERXPRT *xprt; | |
417 int error; | |
418 int readsize; | |
419 char buf[KNC_STRSIZE]; | |
420 size_t len; | |
421 STRUCT_HANDLE(nfs_svc_args, uap); | |
422 struct netbuf addrmask; | |
423 SVC_CALLOUT_TABLE *sctp = NULL; | |
424 | |
425 #ifdef lint | |
426 model = model; /* STRUCT macros don't always refer to it */ | |
427 #endif | |
428 | |
429 STRUCT_SET_HANDLE(uap, model, arg); | |
430 | |
431 /* Check privileges in nfssys() */ | |
432 | |
433 if ((fp = getf(STRUCT_FGET(uap, fd))) == NULL) | |
434 return (EBADF); | |
435 | |
436 /* | |
437 * Set read buffer size to rsize | |
438 * and add room for RPC headers. | |
439 */ | |
440 readsize = nfs3tsize() + (RPC_MAXDATASIZE - NFS_MAXDATA); | |
441 if (readsize < RPC_MAXDATASIZE) | |
442 readsize = RPC_MAXDATASIZE; | |
443 | |
444 error = copyinstr((const char *)STRUCT_FGETP(uap, netid), buf, | |
445 KNC_STRSIZE, &len); | |
446 if (error) { | |
447 releasef(STRUCT_FGET(uap, fd)); | |
448 return (error); | |
449 } | |
450 | |
451 addrmask.len = STRUCT_FGET(uap, addrmask.len); | |
452 addrmask.maxlen = STRUCT_FGET(uap, addrmask.maxlen); | |
453 addrmask.buf = kmem_alloc(addrmask.maxlen, KM_SLEEP); | |
454 error = copyin(STRUCT_FGETP(uap, addrmask.buf), addrmask.buf, | |
455 addrmask.len); | |
456 if (error) { | |
457 releasef(STRUCT_FGET(uap, fd)); | |
458 kmem_free(addrmask.buf, addrmask.maxlen); | |
459 return (error); | |
460 } | |
461 | |
462 nfs_versmin = STRUCT_FGET(uap, versmin); | |
463 nfs_versmax = STRUCT_FGET(uap, versmax); | |
464 | |
465 /* Double check the vers min/max ranges */ | |
466 if ((nfs_versmin > nfs_versmax) || | |
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467 (nfs_versmin < NFS_VERSMIN) || |
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468 (nfs_versmax > NFS_VERSMAX)) { |
0 | 469 nfs_versmin = NFS_VERSMIN_DEFAULT; |
470 nfs_versmax = NFS_VERSMAX_DEFAULT; | |
471 } | |
472 | |
473 if (error = | |
474 nfs_srv_set_sc_versions(fp, &sctp, nfs_versmin, nfs_versmax)) { | |
475 releasef(STRUCT_FGET(uap, fd)); | |
476 kmem_free(addrmask.buf, addrmask.maxlen); | |
477 return (error); | |
478 } | |
479 | |
480 /* Initialize nfsv4 server */ | |
481 if (nfs_versmax == (rpcvers_t)NFS_V4) | |
482 rfs4_server_start(STRUCT_FGET(uap, delegation)); | |
483 | |
484 /* Create a transport handle. */ | |
485 error = svc_tli_kcreate(fp, readsize, buf, &addrmask, &xprt, | |
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486 sctp, NULL, NFS_SVCPOOL_ID, TRUE); |
0 | 487 |
488 if (error) | |
489 kmem_free(addrmask.buf, addrmask.maxlen); | |
490 | |
491 releasef(STRUCT_FGET(uap, fd)); | |
492 | |
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493 /* HA-NFSv4: save the cluster nodeid */ |
0 | 494 if (cluster_bootflags & CLUSTER_BOOTED) |
495 lm_global_nlmid = clconf_get_nodeid(); | |
496 | |
497 return (error); | |
498 } | |
499 | |
500 static void | |
501 rfs4_server_start(int nfs4_srv_delegation) | |
502 { | |
503 /* | |
504 * Determine if the server has previously been "started" and | |
505 * if not, do the per instance initialization | |
506 */ | |
507 mutex_enter(&nfs_server_upordown_lock); | |
508 | |
509 if (nfs_server_upordown != NFS_SERVER_RUNNING) { | |
510 /* Do we need to stop and wait on the previous server? */ | |
511 while (nfs_server_upordown == NFS_SERVER_STOPPING || | |
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512 nfs_server_upordown == NFS_SERVER_OFFLINE) |
0 | 513 cv_wait(&nfs_server_upordown_cv, |
514 &nfs_server_upordown_lock); | |
515 | |
516 if (nfs_server_upordown != NFS_SERVER_RUNNING) { | |
517 (void) svc_pool_control(NFS_SVCPOOL_ID, | |
518 SVCPSET_UNREGISTER_PROC, (void *)&nfs_srv_offline); | |
519 (void) svc_pool_control(NFS_SVCPOOL_ID, | |
520 SVCPSET_SHUTDOWN_PROC, (void *)&nfs_srv_stop_all); | |
521 | |
522 /* is this an nfsd warm start? */ | |
523 if (nfs_server_upordown == NFS_SERVER_QUIESCED) { | |
524 cmn_err(CE_NOTE, "nfs_server: " | |
525 "server was previously quiesced; " | |
526 "existing NFSv4 state will be re-used"); | |
527 | |
528 /* | |
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529 * HA-NFSv4: this is also the signal |
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530 * that a Resource Group failover has |
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531 * occurred. |
0 | 532 */ |
2390 | 533 if (cluster_bootflags & CLUSTER_BOOTED) |
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534 hanfsv4_failover(); |
0 | 535 } else { |
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536 /* cold start */ |
0 | 537 rfs4_state_init(); |
74 | 538 nfs4_drc = rfs4_init_drc(nfs4_drc_max, |
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539 nfs4_drc_hash); |
0 | 540 } |
541 | |
542 /* | |
543 * Check to see if delegation is to be | |
544 * enabled at the server | |
545 */ | |
546 if (nfs4_srv_delegation != FALSE) | |
547 rfs4_set_deleg_policy(SRV_NORMAL_DELEGATE); | |
548 | |
549 nfs_server_upordown = NFS_SERVER_RUNNING; | |
550 } | |
551 cv_signal(&nfs_server_upordown_cv); | |
552 } | |
553 mutex_exit(&nfs_server_upordown_lock); | |
554 } | |
555 | |
556 /* | |
557 * If RDMA device available, | |
558 * start RDMA listener. | |
559 */ | |
560 int | |
561 rdma_start(struct rdma_svc_args *rsa) | |
562 { | |
563 int error; | |
564 rdma_xprt_group_t started_rdma_xprts; | |
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565 rdma_stat stat; |
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566 int svc_state = 0; |
0 | 567 |
568 /* Double check the vers min/max ranges */ | |
569 if ((rsa->nfs_versmin > rsa->nfs_versmax) || | |
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570 (rsa->nfs_versmin < NFS_VERSMIN) || |
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571 (rsa->nfs_versmax > NFS_VERSMAX)) { |
0 | 572 rsa->nfs_versmin = NFS_VERSMIN_DEFAULT; |
573 rsa->nfs_versmax = NFS_VERSMAX_DEFAULT; | |
574 } | |
575 nfs_versmin = rsa->nfs_versmin; | |
576 nfs_versmax = rsa->nfs_versmax; | |
577 | |
578 /* Set the versions in the callout table */ | |
579 __nfs_sc_rdma[0].sc_versmin = rsa->nfs_versmin; | |
580 __nfs_sc_rdma[0].sc_versmax = rsa->nfs_versmax; | |
581 /* For the NFS_ACL program, check the max version */ | |
582 __nfs_sc_rdma[1].sc_versmin = rsa->nfs_versmin; | |
583 if (rsa->nfs_versmax > NFS_ACL_VERSMAX) | |
584 __nfs_sc_rdma[1].sc_versmax = NFS_ACL_VERSMAX; | |
585 else | |
586 __nfs_sc_rdma[1].sc_versmax = rsa->nfs_versmax; | |
587 | |
588 /* Initialize nfsv4 server */ | |
589 if (rsa->nfs_versmax == (rpcvers_t)NFS_V4) | |
590 rfs4_server_start(rsa->delegation); | |
591 | |
592 started_rdma_xprts.rtg_count = 0; | |
593 started_rdma_xprts.rtg_listhead = NULL; | |
594 started_rdma_xprts.rtg_poolid = rsa->poolid; | |
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595 |
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596 restart: |
0 | 597 error = svc_rdma_kcreate(rsa->netid, &nfs_sct_rdma, rsa->poolid, |
598 &started_rdma_xprts); | |
599 | |
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600 svc_state = !error; |
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601 |
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602 while (!error) { |
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603 |
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604 /* |
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605 * wait till either interrupted by a signal on |
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606 * nfs service stop/restart or signalled by a |
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607 * rdma plugin attach/detatch. |
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608 */ |
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609 |
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610 stat = rdma_kwait(); |
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611 |
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612 /* |
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613 * stop services if running -- either on a HCA detach event |
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614 * or if the nfs service is stopped/restarted. |
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615 */ |
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616 |
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617 if ((stat == RDMA_HCA_DETACH || stat == RDMA_INTR) && |
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618 svc_state) { |
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619 rdma_stop(&started_rdma_xprts); |
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620 svc_state = 0; |
0 | 621 } |
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622 |
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623 /* |
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624 * nfs service stop/restart, break out of the |
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625 * wait loop and return; |
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626 */ |
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627 if (stat == RDMA_INTR) |
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628 return (0); |
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629 |
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630 /* |
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631 * restart stopped services on a HCA attach event |
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632 * (if not already running) |
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633 */ |
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634 |
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635 if ((stat == RDMA_HCA_ATTACH) && (svc_state == 0)) |
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636 goto restart; |
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637 |
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638 /* |
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639 * loop until a nfs service stop/restart |
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640 */ |
0 | 641 } |
642 | |
643 return (error); | |
644 } | |
645 | |
646 /* ARGSUSED */ | |
74 | 647 void |
0 | 648 rpc_null(caddr_t *argp, caddr_t *resp) |
649 { | |
650 } | |
651 | |
652 /* ARGSUSED */ | |
5982 | 653 void |
654 rpc_null_v3(caddr_t *argp, caddr_t *resp, struct exportinfo *exi, | |
655 struct svc_req *req, cred_t *cr) | |
656 { | |
657 DTRACE_NFSV3_3(op__null__start, struct svc_req *, req, | |
658 cred_t *, cr, vnode_t *, NULL); | |
659 DTRACE_NFSV3_3(op__null__done, struct svc_req *, req, | |
660 cred_t *, cr, vnode_t *, NULL); | |
661 } | |
662 | |
663 /* ARGSUSED */ | |
0 | 664 static void |
665 rfs_error(caddr_t *argp, caddr_t *resp) | |
666 { | |
667 /* return (EOPNOTSUPP); */ | |
668 } | |
669 | |
670 static void | |
671 nullfree(void) | |
672 { | |
673 } | |
674 | |
675 static char *rfscallnames_v2[] = { | |
676 "RFS2_NULL", | |
677 "RFS2_GETATTR", | |
678 "RFS2_SETATTR", | |
679 "RFS2_ROOT", | |
680 "RFS2_LOOKUP", | |
681 "RFS2_READLINK", | |
682 "RFS2_READ", | |
683 "RFS2_WRITECACHE", | |
684 "RFS2_WRITE", | |
685 "RFS2_CREATE", | |
686 "RFS2_REMOVE", | |
687 "RFS2_RENAME", | |
688 "RFS2_LINK", | |
689 "RFS2_SYMLINK", | |
690 "RFS2_MKDIR", | |
691 "RFS2_RMDIR", | |
692 "RFS2_READDIR", | |
693 "RFS2_STATFS" | |
694 }; | |
695 | |
696 static struct rpcdisp rfsdisptab_v2[] = { | |
697 /* | |
698 * NFS VERSION 2 | |
699 */ | |
700 | |
701 /* RFS_NULL = 0 */ | |
702 {rpc_null, | |
703 xdr_void, NULL_xdrproc_t, 0, | |
704 xdr_void, NULL_xdrproc_t, 0, | |
705 nullfree, RPC_IDEMPOTENT, | |
74 | 706 0}, |
0 | 707 |
708 /* RFS_GETATTR = 1 */ | |
709 {rfs_getattr, | |
710 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
711 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
712 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
74 | 713 rfs_getattr_getfh}, |
0 | 714 |
715 /* RFS_SETATTR = 2 */ | |
716 {rfs_setattr, | |
717 xdr_saargs, NULL_xdrproc_t, sizeof (struct nfssaargs), | |
718 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
719 nullfree, RPC_MAPRESP, | |
74 | 720 rfs_setattr_getfh}, |
0 | 721 |
722 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
723 {rfs_error, | |
724 xdr_void, NULL_xdrproc_t, 0, | |
725 xdr_void, NULL_xdrproc_t, 0, | |
726 nullfree, RPC_IDEMPOTENT, | |
74 | 727 0}, |
0 | 728 |
729 /* RFS_LOOKUP = 4 */ | |
730 {rfs_lookup, | |
731 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
732 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
733 nullfree, RPC_IDEMPOTENT|RPC_MAPRESP|RPC_PUBLICFH_OK, | |
74 | 734 rfs_lookup_getfh}, |
0 | 735 |
736 /* RFS_READLINK = 5 */ | |
737 {rfs_readlink, | |
738 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
739 xdr_rdlnres, NULL_xdrproc_t, sizeof (struct nfsrdlnres), | |
740 rfs_rlfree, RPC_IDEMPOTENT, | |
74 | 741 rfs_readlink_getfh}, |
0 | 742 |
743 /* RFS_READ = 6 */ | |
744 {rfs_read, | |
745 xdr_readargs, NULL_xdrproc_t, sizeof (struct nfsreadargs), | |
746 xdr_rdresult, NULL_xdrproc_t, sizeof (struct nfsrdresult), | |
747 rfs_rdfree, RPC_IDEMPOTENT, | |
74 | 748 rfs_read_getfh}, |
0 | 749 |
750 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
751 {rfs_error, | |
752 xdr_void, NULL_xdrproc_t, 0, | |
753 xdr_void, NULL_xdrproc_t, 0, | |
754 nullfree, RPC_IDEMPOTENT, | |
74 | 755 0}, |
0 | 756 |
757 /* RFS_WRITE = 8 */ | |
758 {rfs_write, | |
759 xdr_writeargs, NULL_xdrproc_t, sizeof (struct nfswriteargs), | |
760 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
761 nullfree, RPC_MAPRESP, | |
74 | 762 rfs_write_getfh}, |
0 | 763 |
764 /* RFS_CREATE = 9 */ | |
765 {rfs_create, | |
766 xdr_creatargs, NULL_xdrproc_t, sizeof (struct nfscreatargs), | |
767 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
768 nullfree, RPC_MAPRESP, | |
74 | 769 rfs_create_getfh}, |
0 | 770 |
771 /* RFS_REMOVE = 10 */ | |
772 {rfs_remove, | |
773 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
774 #ifdef _LITTLE_ENDIAN | |
775 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
776 #else | |
777 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
778 #endif | |
779 nullfree, RPC_MAPRESP, | |
74 | 780 rfs_remove_getfh}, |
0 | 781 |
782 /* RFS_RENAME = 11 */ | |
783 {rfs_rename, | |
784 xdr_rnmargs, NULL_xdrproc_t, sizeof (struct nfsrnmargs), | |
785 #ifdef _LITTLE_ENDIAN | |
786 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
787 #else | |
788 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
789 #endif | |
790 nullfree, RPC_MAPRESP, | |
74 | 791 rfs_rename_getfh}, |
0 | 792 |
793 /* RFS_LINK = 12 */ | |
794 {rfs_link, | |
795 xdr_linkargs, NULL_xdrproc_t, sizeof (struct nfslinkargs), | |
796 #ifdef _LITTLE_ENDIAN | |
797 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
798 #else | |
799 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
800 #endif | |
801 nullfree, RPC_MAPRESP, | |
74 | 802 rfs_link_getfh}, |
0 | 803 |
804 /* RFS_SYMLINK = 13 */ | |
805 {rfs_symlink, | |
806 xdr_slargs, NULL_xdrproc_t, sizeof (struct nfsslargs), | |
807 #ifdef _LITTLE_ENDIAN | |
808 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
809 #else | |
810 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
811 #endif | |
812 nullfree, RPC_MAPRESP, | |
74 | 813 rfs_symlink_getfh}, |
0 | 814 |
815 /* RFS_MKDIR = 14 */ | |
816 {rfs_mkdir, | |
817 xdr_creatargs, NULL_xdrproc_t, sizeof (struct nfscreatargs), | |
818 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
819 nullfree, RPC_MAPRESP, | |
74 | 820 rfs_mkdir_getfh}, |
0 | 821 |
822 /* RFS_RMDIR = 15 */ | |
823 {rfs_rmdir, | |
824 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
825 #ifdef _LITTLE_ENDIAN | |
826 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
827 #else | |
828 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
829 #endif | |
830 nullfree, RPC_MAPRESP, | |
74 | 831 rfs_rmdir_getfh}, |
0 | 832 |
833 /* RFS_READDIR = 16 */ | |
834 {rfs_readdir, | |
835 xdr_rddirargs, NULL_xdrproc_t, sizeof (struct nfsrddirargs), | |
836 xdr_putrddirres, NULL_xdrproc_t, sizeof (struct nfsrddirres), | |
837 rfs_rddirfree, RPC_IDEMPOTENT, | |
74 | 838 rfs_readdir_getfh}, |
0 | 839 |
840 /* RFS_STATFS = 17 */ | |
841 {rfs_statfs, | |
842 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
843 xdr_statfs, xdr_faststatfs, sizeof (struct nfsstatfs), | |
844 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
74 | 845 rfs_statfs_getfh}, |
0 | 846 }; |
847 | |
848 static char *rfscallnames_v3[] = { | |
849 "RFS3_NULL", | |
850 "RFS3_GETATTR", | |
851 "RFS3_SETATTR", | |
852 "RFS3_LOOKUP", | |
853 "RFS3_ACCESS", | |
854 "RFS3_READLINK", | |
855 "RFS3_READ", | |
856 "RFS3_WRITE", | |
857 "RFS3_CREATE", | |
858 "RFS3_MKDIR", | |
859 "RFS3_SYMLINK", | |
860 "RFS3_MKNOD", | |
861 "RFS3_REMOVE", | |
862 "RFS3_RMDIR", | |
863 "RFS3_RENAME", | |
864 "RFS3_LINK", | |
865 "RFS3_READDIR", | |
866 "RFS3_READDIRPLUS", | |
867 "RFS3_FSSTAT", | |
868 "RFS3_FSINFO", | |
869 "RFS3_PATHCONF", | |
870 "RFS3_COMMIT" | |
871 }; | |
872 | |
873 static struct rpcdisp rfsdisptab_v3[] = { | |
874 /* | |
875 * NFS VERSION 3 | |
876 */ | |
877 | |
878 /* RFS_NULL = 0 */ | |
5982 | 879 {rpc_null_v3, |
0 | 880 xdr_void, NULL_xdrproc_t, 0, |
881 xdr_void, NULL_xdrproc_t, 0, | |
882 nullfree, RPC_IDEMPOTENT, | |
74 | 883 0}, |
0 | 884 |
885 /* RFS3_GETATTR = 1 */ | |
886 {rfs3_getattr, | |
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887 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (GETATTR3args), |
0 | 888 xdr_GETATTR3res, NULL_xdrproc_t, sizeof (GETATTR3res), |
889 nullfree, (RPC_IDEMPOTENT | RPC_ALLOWANON), | |
74 | 890 rfs3_getattr_getfh}, |
0 | 891 |
892 /* RFS3_SETATTR = 2 */ | |
893 {rfs3_setattr, | |
894 xdr_SETATTR3args, NULL_xdrproc_t, sizeof (SETATTR3args), | |
895 xdr_SETATTR3res, NULL_xdrproc_t, sizeof (SETATTR3res), | |
896 nullfree, 0, | |
74 | 897 rfs3_setattr_getfh}, |
0 | 898 |
899 /* RFS3_LOOKUP = 3 */ | |
900 {rfs3_lookup, | |
901 xdr_diropargs3, NULL_xdrproc_t, sizeof (LOOKUP3args), | |
902 xdr_LOOKUP3res, NULL_xdrproc_t, sizeof (LOOKUP3res), | |
903 nullfree, (RPC_IDEMPOTENT | RPC_PUBLICFH_OK), | |
74 | 904 rfs3_lookup_getfh}, |
0 | 905 |
906 /* RFS3_ACCESS = 4 */ | |
907 {rfs3_access, | |
908 xdr_ACCESS3args, NULL_xdrproc_t, sizeof (ACCESS3args), | |
909 xdr_ACCESS3res, NULL_xdrproc_t, sizeof (ACCESS3res), | |
910 nullfree, RPC_IDEMPOTENT, | |
74 | 911 rfs3_access_getfh}, |
0 | 912 |
913 /* RFS3_READLINK = 5 */ | |
914 {rfs3_readlink, | |
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915 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (READLINK3args), |
0 | 916 xdr_READLINK3res, NULL_xdrproc_t, sizeof (READLINK3res), |
917 rfs3_readlink_free, RPC_IDEMPOTENT, | |
74 | 918 rfs3_readlink_getfh}, |
0 | 919 |
920 /* RFS3_READ = 6 */ | |
921 {rfs3_read, | |
922 xdr_READ3args, NULL_xdrproc_t, sizeof (READ3args), | |
923 xdr_READ3res, NULL_xdrproc_t, sizeof (READ3res), | |
924 rfs3_read_free, RPC_IDEMPOTENT, | |
74 | 925 rfs3_read_getfh}, |
0 | 926 |
927 /* RFS3_WRITE = 7 */ | |
928 {rfs3_write, | |
929 xdr_WRITE3args, NULL_xdrproc_t, sizeof (WRITE3args), | |
930 xdr_WRITE3res, NULL_xdrproc_t, sizeof (WRITE3res), | |
931 nullfree, 0, | |
74 | 932 rfs3_write_getfh}, |
0 | 933 |
934 /* RFS3_CREATE = 8 */ | |
935 {rfs3_create, | |
936 xdr_CREATE3args, NULL_xdrproc_t, sizeof (CREATE3args), | |
937 xdr_CREATE3res, NULL_xdrproc_t, sizeof (CREATE3res), | |
938 nullfree, 0, | |
74 | 939 rfs3_create_getfh}, |
0 | 940 |
941 /* RFS3_MKDIR = 9 */ | |
942 {rfs3_mkdir, | |
943 xdr_MKDIR3args, NULL_xdrproc_t, sizeof (MKDIR3args), | |
944 xdr_MKDIR3res, NULL_xdrproc_t, sizeof (MKDIR3res), | |
945 nullfree, 0, | |
74 | 946 rfs3_mkdir_getfh}, |
0 | 947 |
948 /* RFS3_SYMLINK = 10 */ | |
949 {rfs3_symlink, | |
950 xdr_SYMLINK3args, NULL_xdrproc_t, sizeof (SYMLINK3args), | |
951 xdr_SYMLINK3res, NULL_xdrproc_t, sizeof (SYMLINK3res), | |
952 nullfree, 0, | |
74 | 953 rfs3_symlink_getfh}, |
0 | 954 |
955 /* RFS3_MKNOD = 11 */ | |
956 {rfs3_mknod, | |
957 xdr_MKNOD3args, NULL_xdrproc_t, sizeof (MKNOD3args), | |
958 xdr_MKNOD3res, NULL_xdrproc_t, sizeof (MKNOD3res), | |
959 nullfree, 0, | |
74 | 960 rfs3_mknod_getfh}, |
0 | 961 |
962 /* RFS3_REMOVE = 12 */ | |
963 {rfs3_remove, | |
964 xdr_diropargs3, NULL_xdrproc_t, sizeof (REMOVE3args), | |
965 xdr_REMOVE3res, NULL_xdrproc_t, sizeof (REMOVE3res), | |
966 nullfree, 0, | |
74 | 967 rfs3_remove_getfh}, |
0 | 968 |
969 /* RFS3_RMDIR = 13 */ | |
970 {rfs3_rmdir, | |
971 xdr_diropargs3, NULL_xdrproc_t, sizeof (RMDIR3args), | |
972 xdr_RMDIR3res, NULL_xdrproc_t, sizeof (RMDIR3res), | |
973 nullfree, 0, | |
74 | 974 rfs3_rmdir_getfh}, |
0 | 975 |
976 /* RFS3_RENAME = 14 */ | |
977 {rfs3_rename, | |
978 xdr_RENAME3args, NULL_xdrproc_t, sizeof (RENAME3args), | |
979 xdr_RENAME3res, NULL_xdrproc_t, sizeof (RENAME3res), | |
980 nullfree, 0, | |
74 | 981 rfs3_rename_getfh}, |
0 | 982 |
983 /* RFS3_LINK = 15 */ | |
984 {rfs3_link, | |
985 xdr_LINK3args, NULL_xdrproc_t, sizeof (LINK3args), | |
986 xdr_LINK3res, NULL_xdrproc_t, sizeof (LINK3res), | |
987 nullfree, 0, | |
74 | 988 rfs3_link_getfh}, |
0 | 989 |
990 /* RFS3_READDIR = 16 */ | |
991 {rfs3_readdir, | |
992 xdr_READDIR3args, NULL_xdrproc_t, sizeof (READDIR3args), | |
993 xdr_READDIR3res, NULL_xdrproc_t, sizeof (READDIR3res), | |
994 rfs3_readdir_free, RPC_IDEMPOTENT, | |
74 | 995 rfs3_readdir_getfh}, |
0 | 996 |
997 /* RFS3_READDIRPLUS = 17 */ | |
998 {rfs3_readdirplus, | |
999 xdr_READDIRPLUS3args, NULL_xdrproc_t, sizeof (READDIRPLUS3args), | |
1000 xdr_READDIRPLUS3res, NULL_xdrproc_t, sizeof (READDIRPLUS3res), | |
1001 rfs3_readdirplus_free, RPC_AVOIDWORK, | |
74 | 1002 rfs3_readdirplus_getfh}, |
0 | 1003 |
1004 /* RFS3_FSSTAT = 18 */ | |
1005 {rfs3_fsstat, | |
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1006 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (FSSTAT3args), |
0 | 1007 xdr_FSSTAT3res, NULL_xdrproc_t, sizeof (FSSTAT3res), |
1008 nullfree, RPC_IDEMPOTENT, | |
74 | 1009 rfs3_fsstat_getfh}, |
0 | 1010 |
1011 /* RFS3_FSINFO = 19 */ | |
1012 {rfs3_fsinfo, | |
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1013 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (FSINFO3args), |
0 | 1014 xdr_FSINFO3res, NULL_xdrproc_t, sizeof (FSINFO3res), |
1015 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON, | |
74 | 1016 rfs3_fsinfo_getfh}, |
0 | 1017 |
1018 /* RFS3_PATHCONF = 20 */ | |
1019 {rfs3_pathconf, | |
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1020 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (PATHCONF3args), |
0 | 1021 xdr_PATHCONF3res, NULL_xdrproc_t, sizeof (PATHCONF3res), |
1022 nullfree, RPC_IDEMPOTENT, | |
74 | 1023 rfs3_pathconf_getfh}, |
0 | 1024 |
1025 /* RFS3_COMMIT = 21 */ | |
1026 {rfs3_commit, | |
1027 xdr_COMMIT3args, NULL_xdrproc_t, sizeof (COMMIT3args), | |
1028 xdr_COMMIT3res, NULL_xdrproc_t, sizeof (COMMIT3res), | |
1029 nullfree, RPC_IDEMPOTENT, | |
74 | 1030 rfs3_commit_getfh}, |
0 | 1031 }; |
1032 | |
1033 static char *rfscallnames_v4[] = { | |
1034 "RFS4_NULL", | |
1035 "RFS4_COMPOUND", | |
1036 "RFS4_NULL", | |
1037 "RFS4_NULL", | |
1038 "RFS4_NULL", | |
1039 "RFS4_NULL", | |
1040 "RFS4_NULL", | |
1041 "RFS4_NULL", | |
1042 "RFS4_CREATE" | |
1043 }; | |
1044 | |
1045 static struct rpcdisp rfsdisptab_v4[] = { | |
1046 /* | |
1047 * NFS VERSION 4 | |
1048 */ | |
1049 | |
1050 /* RFS_NULL = 0 */ | |
1051 {rpc_null, | |
1052 xdr_void, NULL_xdrproc_t, 0, | |
1053 xdr_void, NULL_xdrproc_t, 0, | |
74 | 1054 nullfree, RPC_IDEMPOTENT, 0}, |
0 | 1055 |
1056 /* RFS4_compound = 1 */ | |
1057 {rfs4_compound, | |
806 | 1058 xdr_COMPOUND4args_srv, NULL_xdrproc_t, sizeof (COMPOUND4args), |
1059 xdr_COMPOUND4res_srv, NULL_xdrproc_t, sizeof (COMPOUND4res), | |
74 | 1060 rfs4_compound_free, 0, 0}, |
0 | 1061 }; |
1062 | |
1063 union rfs_args { | |
1064 /* | |
1065 * NFS VERSION 2 | |
1066 */ | |
1067 | |
1068 /* RFS_NULL = 0 */ | |
1069 | |
1070 /* RFS_GETATTR = 1 */ | |
1071 fhandle_t nfs2_getattr_args; | |
1072 | |
1073 /* RFS_SETATTR = 2 */ | |
1074 struct nfssaargs nfs2_setattr_args; | |
1075 | |
1076 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
1077 | |
1078 /* RFS_LOOKUP = 4 */ | |
1079 struct nfsdiropargs nfs2_lookup_args; | |
1080 | |
1081 /* RFS_READLINK = 5 */ | |
1082 fhandle_t nfs2_readlink_args; | |
1083 | |
1084 /* RFS_READ = 6 */ | |
1085 struct nfsreadargs nfs2_read_args; | |
1086 | |
1087 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
1088 | |
1089 /* RFS_WRITE = 8 */ | |
1090 struct nfswriteargs nfs2_write_args; | |
1091 | |
1092 /* RFS_CREATE = 9 */ | |
1093 struct nfscreatargs nfs2_create_args; | |
1094 | |
1095 /* RFS_REMOVE = 10 */ | |
1096 struct nfsdiropargs nfs2_remove_args; | |
1097 | |
1098 /* RFS_RENAME = 11 */ | |
1099 struct nfsrnmargs nfs2_rename_args; | |
1100 | |
1101 /* RFS_LINK = 12 */ | |
1102 struct nfslinkargs nfs2_link_args; | |
1103 | |
1104 /* RFS_SYMLINK = 13 */ | |
1105 struct nfsslargs nfs2_symlink_args; | |
1106 | |
1107 /* RFS_MKDIR = 14 */ | |
1108 struct nfscreatargs nfs2_mkdir_args; | |
1109 | |
1110 /* RFS_RMDIR = 15 */ | |
1111 struct nfsdiropargs nfs2_rmdir_args; | |
1112 | |
1113 /* RFS_READDIR = 16 */ | |
1114 struct nfsrddirargs nfs2_readdir_args; | |
1115 | |
1116 /* RFS_STATFS = 17 */ | |
1117 fhandle_t nfs2_statfs_args; | |
1118 | |
1119 /* | |
1120 * NFS VERSION 3 | |
1121 */ | |
1122 | |
1123 /* RFS_NULL = 0 */ | |
1124 | |
1125 /* RFS3_GETATTR = 1 */ | |
1126 GETATTR3args nfs3_getattr_args; | |
1127 | |
1128 /* RFS3_SETATTR = 2 */ | |
1129 SETATTR3args nfs3_setattr_args; | |
1130 | |
1131 /* RFS3_LOOKUP = 3 */ | |
1132 LOOKUP3args nfs3_lookup_args; | |
1133 | |
1134 /* RFS3_ACCESS = 4 */ | |
1135 ACCESS3args nfs3_access_args; | |
1136 | |
1137 /* RFS3_READLINK = 5 */ | |
1138 READLINK3args nfs3_readlink_args; | |
1139 | |
1140 /* RFS3_READ = 6 */ | |
1141 READ3args nfs3_read_args; | |
1142 | |
1143 /* RFS3_WRITE = 7 */ | |
1144 WRITE3args nfs3_write_args; | |
1145 | |
1146 /* RFS3_CREATE = 8 */ | |
1147 CREATE3args nfs3_create_args; | |
1148 | |
1149 /* RFS3_MKDIR = 9 */ | |
1150 MKDIR3args nfs3_mkdir_args; | |
1151 | |
1152 /* RFS3_SYMLINK = 10 */ | |
1153 SYMLINK3args nfs3_symlink_args; | |
1154 | |
1155 /* RFS3_MKNOD = 11 */ | |
1156 MKNOD3args nfs3_mknod_args; | |
1157 | |
1158 /* RFS3_REMOVE = 12 */ | |
1159 REMOVE3args nfs3_remove_args; | |
1160 | |
1161 /* RFS3_RMDIR = 13 */ | |
1162 RMDIR3args nfs3_rmdir_args; | |
1163 | |
1164 /* RFS3_RENAME = 14 */ | |
1165 RENAME3args nfs3_rename_args; | |
1166 | |
1167 /* RFS3_LINK = 15 */ | |
1168 LINK3args nfs3_link_args; | |
1169 | |
1170 /* RFS3_READDIR = 16 */ | |
1171 READDIR3args nfs3_readdir_args; | |
1172 | |
1173 /* RFS3_READDIRPLUS = 17 */ | |
1174 READDIRPLUS3args nfs3_readdirplus_args; | |
1175 | |
1176 /* RFS3_FSSTAT = 18 */ | |
1177 FSSTAT3args nfs3_fsstat_args; | |
1178 | |
1179 /* RFS3_FSINFO = 19 */ | |
1180 FSINFO3args nfs3_fsinfo_args; | |
1181 | |
1182 /* RFS3_PATHCONF = 20 */ | |
1183 PATHCONF3args nfs3_pathconf_args; | |
1184 | |
1185 /* RFS3_COMMIT = 21 */ | |
1186 COMMIT3args nfs3_commit_args; | |
1187 | |
1188 /* | |
1189 * NFS VERSION 4 | |
1190 */ | |
1191 | |
1192 /* RFS_NULL = 0 */ | |
1193 | |
1194 /* COMPUND = 1 */ | |
1195 COMPOUND4args nfs4_compound_args; | |
1196 }; | |
1197 | |
1198 union rfs_res { | |
1199 /* | |
1200 * NFS VERSION 2 | |
1201 */ | |
1202 | |
1203 /* RFS_NULL = 0 */ | |
1204 | |
1205 /* RFS_GETATTR = 1 */ | |
1206 struct nfsattrstat nfs2_getattr_res; | |
1207 | |
1208 /* RFS_SETATTR = 2 */ | |
1209 struct nfsattrstat nfs2_setattr_res; | |
1210 | |
1211 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
1212 | |
1213 /* RFS_LOOKUP = 4 */ | |
1214 struct nfsdiropres nfs2_lookup_res; | |
1215 | |
1216 /* RFS_READLINK = 5 */ | |
1217 struct nfsrdlnres nfs2_readlink_res; | |
1218 | |
1219 /* RFS_READ = 6 */ | |
1220 struct nfsrdresult nfs2_read_res; | |
1221 | |
1222 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
1223 | |
1224 /* RFS_WRITE = 8 */ | |
1225 struct nfsattrstat nfs2_write_res; | |
1226 | |
1227 /* RFS_CREATE = 9 */ | |
1228 struct nfsdiropres nfs2_create_res; | |
1229 | |
1230 /* RFS_REMOVE = 10 */ | |
1231 enum nfsstat nfs2_remove_res; | |
1232 | |
1233 /* RFS_RENAME = 11 */ | |
1234 enum nfsstat nfs2_rename_res; | |
1235 | |
1236 /* RFS_LINK = 12 */ | |
1237 enum nfsstat nfs2_link_res; | |
1238 | |
1239 /* RFS_SYMLINK = 13 */ | |
1240 enum nfsstat nfs2_symlink_res; | |
1241 | |
1242 /* RFS_MKDIR = 14 */ | |
1243 struct nfsdiropres nfs2_mkdir_res; | |
1244 | |
1245 /* RFS_RMDIR = 15 */ | |
1246 enum nfsstat nfs2_rmdir_res; | |
1247 | |
1248 /* RFS_READDIR = 16 */ | |
1249 struct nfsrddirres nfs2_readdir_res; | |
1250 | |
1251 /* RFS_STATFS = 17 */ | |
1252 struct nfsstatfs nfs2_statfs_res; | |
1253 | |
1254 /* | |
1255 * NFS VERSION 3 | |
1256 */ | |
1257 | |
1258 /* RFS_NULL = 0 */ | |
1259 | |
1260 /* RFS3_GETATTR = 1 */ | |
1261 GETATTR3res nfs3_getattr_res; | |
1262 | |
1263 /* RFS3_SETATTR = 2 */ | |
1264 SETATTR3res nfs3_setattr_res; | |
1265 | |
1266 /* RFS3_LOOKUP = 3 */ | |
1267 LOOKUP3res nfs3_lookup_res; | |
1268 | |
1269 /* RFS3_ACCESS = 4 */ | |
1270 ACCESS3res nfs3_access_res; | |
1271 | |
1272 /* RFS3_READLINK = 5 */ | |
1273 READLINK3res nfs3_readlink_res; | |
1274 | |
1275 /* RFS3_READ = 6 */ | |
1276 READ3res nfs3_read_res; | |
1277 | |
1278 /* RFS3_WRITE = 7 */ | |
1279 WRITE3res nfs3_write_res; | |
1280 | |
1281 /* RFS3_CREATE = 8 */ | |
1282 CREATE3res nfs3_create_res; | |
1283 | |
1284 /* RFS3_MKDIR = 9 */ | |
1285 MKDIR3res nfs3_mkdir_res; | |
1286 | |
1287 /* RFS3_SYMLINK = 10 */ | |
1288 SYMLINK3res nfs3_symlink_res; | |
1289 | |
1290 /* RFS3_MKNOD = 11 */ | |
1291 MKNOD3res nfs3_mknod_res; | |
1292 | |
1293 /* RFS3_REMOVE = 12 */ | |
1294 REMOVE3res nfs3_remove_res; | |
1295 | |
1296 /* RFS3_RMDIR = 13 */ | |
1297 RMDIR3res nfs3_rmdir_res; | |
1298 | |
1299 /* RFS3_RENAME = 14 */ | |
1300 RENAME3res nfs3_rename_res; | |
1301 | |
1302 /* RFS3_LINK = 15 */ | |
1303 LINK3res nfs3_link_res; | |
1304 | |
1305 /* RFS3_READDIR = 16 */ | |
1306 READDIR3res nfs3_readdir_res; | |
1307 | |
1308 /* RFS3_READDIRPLUS = 17 */ | |
1309 READDIRPLUS3res nfs3_readdirplus_res; | |
1310 | |
1311 /* RFS3_FSSTAT = 18 */ | |
1312 FSSTAT3res nfs3_fsstat_res; | |
1313 | |
1314 /* RFS3_FSINFO = 19 */ | |
1315 FSINFO3res nfs3_fsinfo_res; | |
1316 | |
1317 /* RFS3_PATHCONF = 20 */ | |
1318 PATHCONF3res nfs3_pathconf_res; | |
1319 | |
1320 /* RFS3_COMMIT = 21 */ | |
1321 COMMIT3res nfs3_commit_res; | |
1322 | |
1323 /* | |
1324 * NFS VERSION 4 | |
1325 */ | |
1326 | |
1327 /* RFS_NULL = 0 */ | |
1328 | |
1329 /* RFS4_COMPOUND = 1 */ | |
1330 COMPOUND4res nfs4_compound_res; | |
1331 | |
1332 }; | |
1333 | |
1334 static struct rpc_disptable rfs_disptable[] = { | |
1335 {sizeof (rfsdisptab_v2) / sizeof (rfsdisptab_v2[0]), | |
1336 rfscallnames_v2, | |
1337 &rfsproccnt_v2_ptr, rfsdisptab_v2}, | |
1338 {sizeof (rfsdisptab_v3) / sizeof (rfsdisptab_v3[0]), | |
1339 rfscallnames_v3, | |
1340 &rfsproccnt_v3_ptr, rfsdisptab_v3}, | |
1341 {sizeof (rfsdisptab_v4) / sizeof (rfsdisptab_v4[0]), | |
1342 rfscallnames_v4, | |
1343 &rfsproccnt_v4_ptr, rfsdisptab_v4}, | |
1344 }; | |
1345 | |
1346 /* | |
1347 * If nfs_portmon is set, then clients are required to use privileged | |
1348 * ports (ports < IPPORT_RESERVED) in order to get NFS services. | |
1349 * | |
1350 * N.B.: this attempt to carry forward the already ill-conceived notion | |
1351 * of privileged ports for TCP/UDP is really quite ineffectual. Not only | |
1352 * is it transport-dependent, it's laughably easy to spoof. If you're | |
1353 * really interested in security, you must start with secure RPC instead. | |
1354 */ | |
1355 static int nfs_portmon = 0; | |
1356 | |
1357 #ifdef DEBUG | |
1358 static int cred_hits = 0; | |
1359 static int cred_misses = 0; | |
1360 #endif | |
1361 | |
1362 | |
1363 #ifdef DEBUG | |
1364 /* | |
1365 * Debug code to allow disabling of rfs_dispatch() use of | |
1366 * fastxdrargs() and fastxdrres() calls for testing purposes. | |
1367 */ | |
1368 static int rfs_no_fast_xdrargs = 0; | |
1369 static int rfs_no_fast_xdrres = 0; | |
1370 #endif | |
1371 | |
1372 union acl_args { | |
1373 /* | |
1374 * ACL VERSION 2 | |
1375 */ | |
1376 | |
1377 /* ACL2_NULL = 0 */ | |
1378 | |
1379 /* ACL2_GETACL = 1 */ | |
1380 GETACL2args acl2_getacl_args; | |
1381 | |
1382 /* ACL2_SETACL = 2 */ | |
1383 SETACL2args acl2_setacl_args; | |
1384 | |
1385 /* ACL2_GETATTR = 3 */ | |
1386 GETATTR2args acl2_getattr_args; | |
1387 | |
1388 /* ACL2_ACCESS = 4 */ | |
1389 ACCESS2args acl2_access_args; | |
1390 | |
1391 /* ACL2_GETXATTRDIR = 5 */ | |
1392 GETXATTRDIR2args acl2_getxattrdir_args; | |
1393 | |
1394 /* | |
1395 * ACL VERSION 3 | |
1396 */ | |
1397 | |
1398 /* ACL3_NULL = 0 */ | |
1399 | |
1400 /* ACL3_GETACL = 1 */ | |
1401 GETACL3args acl3_getacl_args; | |
1402 | |
1403 /* ACL3_SETACL = 2 */ | |
1404 SETACL3args acl3_setacl; | |
1405 | |
1406 /* ACL3_GETXATTRDIR = 3 */ | |
1407 GETXATTRDIR3args acl3_getxattrdir_args; | |
1408 | |
1409 }; | |
1410 | |
1411 union acl_res { | |
1412 /* | |
1413 * ACL VERSION 2 | |
1414 */ | |
1415 | |
1416 /* ACL2_NULL = 0 */ | |
1417 | |
1418 /* ACL2_GETACL = 1 */ | |
1419 GETACL2res acl2_getacl_res; | |
1420 | |
1421 /* ACL2_SETACL = 2 */ | |
1422 SETACL2res acl2_setacl_res; | |
1423 | |
1424 /* ACL2_GETATTR = 3 */ | |
1425 GETATTR2res acl2_getattr_res; | |
1426 | |
1427 /* ACL2_ACCESS = 4 */ | |
1428 ACCESS2res acl2_access_res; | |
1429 | |
1430 /* ACL2_GETXATTRDIR = 5 */ | |
1431 GETXATTRDIR2args acl2_getxattrdir_res; | |
1432 | |
1433 /* | |
1434 * ACL VERSION 3 | |
1435 */ | |
1436 | |
1437 /* ACL3_NULL = 0 */ | |
1438 | |
1439 /* ACL3_GETACL = 1 */ | |
1440 GETACL3res acl3_getacl_res; | |
1441 | |
1442 /* ACL3_SETACL = 2 */ | |
1443 SETACL3res acl3_setacl_res; | |
1444 | |
1445 /* ACL3_GETXATTRDIR = 3 */ | |
1446 GETXATTRDIR3res acl3_getxattrdir_res; | |
1447 | |
1448 }; | |
1449 | |
1450 static bool_t | |
1451 auth_tooweak(struct svc_req *req, char *res) | |
1452 { | |
1453 | |
1454 if (req->rq_vers == NFS_VERSION && req->rq_proc == RFS_LOOKUP) { | |
1455 struct nfsdiropres *dr = (struct nfsdiropres *)res; | |
1456 if (dr->dr_status == WNFSERR_CLNT_FLAVOR) | |
1457 return (TRUE); | |
1458 } else if (req->rq_vers == NFS_V3 && req->rq_proc == NFSPROC3_LOOKUP) { | |
1459 LOOKUP3res *resp = (LOOKUP3res *)res; | |
1460 if (resp->status == WNFSERR_CLNT_FLAVOR) | |
1461 return (TRUE); | |
1462 } | |
1463 return (FALSE); | |
1464 } | |
1465 | |
74 | 1466 |
0 | 1467 static void |
1468 common_dispatch(struct svc_req *req, SVCXPRT *xprt, rpcvers_t min_vers, | |
1469 rpcvers_t max_vers, char *pgmname, | |
1470 struct rpc_disptable *disptable) | |
1471 { | |
1472 int which; | |
1473 rpcvers_t vers; | |
1474 char *args; | |
1475 union { | |
1476 union rfs_args ra; | |
1477 union acl_args aa; | |
1478 } args_buf; | |
1479 char *res; | |
1480 union { | |
1481 union rfs_res rr; | |
1482 union acl_res ar; | |
1483 } res_buf; | |
1484 struct rpcdisp *disp = NULL; | |
1485 int dis_flags = 0; | |
1486 cred_t *cr; | |
1487 int error = 0; | |
1488 int anon_ok; | |
1489 struct exportinfo *exi = NULL; | |
1490 unsigned int nfslog_rec_id; | |
1491 int dupstat; | |
1492 struct dupreq *dr; | |
1493 int authres; | |
1494 bool_t publicfh_ok = FALSE; | |
1495 enum_t auth_flavor; | |
1496 bool_t dupcached = FALSE; | |
1497 struct netbuf nb; | |
1498 bool_t logging_enabled = FALSE; | |
1499 struct exportinfo *nfslog_exi = NULL; | |
1232 | 1500 char **procnames; |
1501 char cbuf[INET6_ADDRSTRLEN]; /* to hold both IPv4 and IPv6 addr */ | |
0 | 1502 |
1503 vers = req->rq_vers; | |
1504 | |
1505 if (vers < min_vers || vers > max_vers) { | |
1506 svcerr_progvers(req->rq_xprt, min_vers, max_vers); | |
1507 error++; | |
1508 cmn_err(CE_NOTE, "%s: bad version number %u", pgmname, vers); | |
1509 goto done; | |
1510 } | |
1511 vers -= min_vers; | |
1512 | |
1513 which = req->rq_proc; | |
1514 if (which < 0 || which >= disptable[(int)vers].dis_nprocs) { | |
1515 svcerr_noproc(req->rq_xprt); | |
1516 error++; | |
1517 goto done; | |
1518 } | |
1519 | |
1520 (*(disptable[(int)vers].dis_proccntp))[which].value.ui64++; | |
1521 | |
1522 disp = &disptable[(int)vers].dis_table[which]; | |
1232 | 1523 procnames = disptable[(int)vers].dis_procnames; |
0 | 1524 |
1525 auth_flavor = req->rq_cred.oa_flavor; | |
1232 | 1526 |
0 | 1527 /* |
1528 * Deserialize into the args struct. | |
1529 */ | |
1530 args = (char *)&args_buf; | |
74 | 1531 |
0 | 1532 #ifdef DEBUG |
1533 if (rfs_no_fast_xdrargs || (auth_flavor == RPCSEC_GSS) || | |
1534 disp->dis_fastxdrargs == NULL_xdrproc_t || | |
1610
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1535 !SVC_GETARGS(xprt, disp->dis_fastxdrargs, (char *)&args)) |
0 | 1536 #else |
1537 if ((auth_flavor == RPCSEC_GSS) || | |
1538 disp->dis_fastxdrargs == NULL_xdrproc_t || | |
1610
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1539 !SVC_GETARGS(xprt, disp->dis_fastxdrargs, (char *)&args)) |
0 | 1540 #endif |
1610
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1541 { |
0 | 1542 bzero(args, disp->dis_argsz); |
1543 if (!SVC_GETARGS(xprt, disp->dis_xdrargs, args)) { | |
4635
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1544 error++; |
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1545 /* |
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1546 * Check if we are outside our capabilities. |
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1547 */ |
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1548 if (rfs4_minorvers_mismatch(req, xprt, (void *)args)) |
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1549 goto done; |
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1550 |
0 | 1551 svcerr_decode(xprt); |
1232 | 1552 cmn_err(CE_NOTE, |
1553 "Failed to decode arguments for %s version %u " | |
1554 "procedure %s client %s%s", | |
1555 pgmname, vers + min_vers, procnames[which], | |
1556 client_name(req), client_addr(req, cbuf)); | |
0 | 1557 goto done; |
1558 } | |
1559 } | |
1560 | |
1561 /* | |
74 | 1562 * If Version 4 use that specific dispatch function. |
0 | 1563 */ |
74 | 1564 if (req->rq_vers == 4) { |
1565 error += rfs4_dispatch(disp, req, xprt, args); | |
1566 goto done; | |
1567 } | |
1568 | |
1569 dis_flags = disp->dis_flags; | |
0 | 1570 |
1571 /* | |
1572 * Find export information and check authentication, | |
1573 * setting the credential if everything is ok. | |
1574 */ | |
1575 if (disp->dis_getfh != NULL) { | |
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1576 void *fh; |
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1577 fsid_t *fsid; |
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1578 fid_t *fid, *xfid; |
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1579 fhandle_t *fh2; |
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1580 nfs_fh3 *fh3; |
0 | 1581 |
1582 fh = (*disp->dis_getfh)(args); | |
1610
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1583 switch (req->rq_vers) { |
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1584 case NFS_VERSION: |
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1585 fh2 = (fhandle_t *)fh; |
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1586 fsid = &fh2->fh_fsid; |
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1587 fid = (fid_t *)&fh2->fh_len; |
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1588 xfid = (fid_t *)&fh2->fh_xlen; |
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1589 break; |
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1590 case NFS_V3: |
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1591 fh3 = (nfs_fh3 *)fh; |
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1592 fsid = &fh3->fh3_fsid; |
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1593 fid = FH3TOFIDP(fh3); |
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1594 xfid = FH3TOXFIDP(fh3); |
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|
1595 break; |
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1596 } |
0 | 1597 |
1598 /* | |
1599 * Fix for bug 1038302 - corbin | |
1600 * There is a problem here if anonymous access is | |
1601 * disallowed. If the current request is part of the | |
1602 * client's mount process for the requested filesystem, | |
1603 * then it will carry root (uid 0) credentials on it, and | |
1604 * will be denied by checkauth if that client does not | |
1605 * have explicit root=0 permission. This will cause the | |
1606 * client's mount operation to fail. As a work-around, | |
1607 * we check here to see if the request is a getattr or | |
1608 * statfs operation on the exported vnode itself, and | |
1609 * pass a flag to checkauth with the result of this test. | |
1610 * | |
1611 * The filehandle refers to the mountpoint itself if | |
1612 * the fh_data and fh_xdata portions of the filehandle | |
1613 * are equal. | |
1614 * | |
1615 * Added anon_ok argument to checkauth(). | |
1616 */ | |
1617 | |
1610
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1618 if ((dis_flags & RPC_ALLOWANON) && EQFID(fid, xfid)) |
0 | 1619 anon_ok = 1; |
1620 else | |
1621 anon_ok = 0; | |
1622 | |
1623 cr = xprt->xp_cred; | |
1624 ASSERT(cr != NULL); | |
1625 #ifdef DEBUG | |
1626 if (crgetref(cr) != 1) { | |
1627 crfree(cr); | |
1628 cr = crget(); | |
1629 xprt->xp_cred = cr; | |
1630 cred_misses++; | |
1631 } else | |
1632 cred_hits++; | |
1633 #else | |
1634 if (crgetref(cr) != 1) { | |
1635 crfree(cr); | |
1636 cr = crget(); | |
1637 xprt->xp_cred = cr; | |
1638 } | |
1639 #endif | |
1640 | |
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1641 exi = checkexport(fsid, xfid); |
74 | 1642 |
0 | 1643 if (exi != NULL) { |
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1644 publicfh_ok = PUBLICFH_CHECK(disp, exi, fsid, xfid); |
0 | 1645 |
1646 /* | |
1647 * Don't allow non-V4 clients access | |
1648 * to pseudo exports | |
1649 */ | |
1650 if (PSEUDO(exi)) { | |
1651 svcerr_weakauth(xprt); | |
1652 error++; | |
1653 goto done; | |
1654 } | |
1655 | |
1656 authres = checkauth(exi, req, cr, anon_ok, publicfh_ok); | |
1657 /* | |
1658 * authres > 0: authentication OK - proceed | |
1659 * authres == 0: authentication weak - return error | |
1660 * authres < 0: authentication timeout - drop | |
1661 */ | |
1662 if (authres <= 0) { | |
1663 if (authres == 0) { | |
1664 svcerr_weakauth(xprt); | |
1665 error++; | |
1666 } | |
1667 goto done; | |
1668 } | |
1669 } | |
1670 } else | |
1671 cr = NULL; | |
1672 | |
1673 if ((dis_flags & RPC_MAPRESP) && (auth_flavor != RPCSEC_GSS)) { | |
1674 res = (char *)SVC_GETRES(xprt, disp->dis_ressz); | |
1675 if (res == NULL) | |
1676 res = (char *)&res_buf; | |
1677 } else | |
1678 res = (char *)&res_buf; | |
1679 | |
1680 if (!(dis_flags & RPC_IDEMPOTENT)) { | |
1681 dupstat = SVC_DUP_EXT(xprt, req, res, disp->dis_ressz, &dr, | |
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1682 &dupcached); |
0 | 1683 |
1684 switch (dupstat) { | |
1685 case DUP_ERROR: | |
1686 svcerr_systemerr(xprt); | |
1687 error++; | |
1688 goto done; | |
1689 /* NOTREACHED */ | |
1690 case DUP_INPROGRESS: | |
1691 if (res != (char *)&res_buf) | |
1692 SVC_FREERES(xprt); | |
1693 error++; | |
1694 goto done; | |
1695 /* NOTREACHED */ | |
1696 case DUP_NEW: | |
1697 case DUP_DROP: | |
1698 curthread->t_flag |= T_DONTPEND; | |
74 | 1699 |
0 | 1700 (*disp->dis_proc)(args, res, exi, req, cr); |
74 | 1701 |
0 | 1702 curthread->t_flag &= ~T_DONTPEND; |
1703 if (curthread->t_flag & T_WOULDBLOCK) { | |
1704 curthread->t_flag &= ~T_WOULDBLOCK; | |
1705 SVC_DUPDONE_EXT(xprt, dr, res, NULL, | |
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1706 disp->dis_ressz, DUP_DROP); |
0 | 1707 if (res != (char *)&res_buf) |
1708 SVC_FREERES(xprt); | |
1709 error++; | |
1710 goto done; | |
1711 } | |
1712 if (dis_flags & RPC_AVOIDWORK) { | |
1713 SVC_DUPDONE_EXT(xprt, dr, res, NULL, | |
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1714 disp->dis_ressz, DUP_DROP); |
0 | 1715 } else { |
1716 SVC_DUPDONE_EXT(xprt, dr, res, | |
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1717 disp->dis_resfree == nullfree ? NULL : |
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1718 disp->dis_resfree, |
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1719 disp->dis_ressz, DUP_DONE); |
0 | 1720 dupcached = TRUE; |
1721 } | |
1722 break; | |
1723 case DUP_DONE: | |
1724 break; | |
1725 } | |
1726 | |
1727 } else { | |
1728 curthread->t_flag |= T_DONTPEND; | |
74 | 1729 |
0 | 1730 (*disp->dis_proc)(args, res, exi, req, cr); |
74 | 1731 |
0 | 1732 curthread->t_flag &= ~T_DONTPEND; |
1733 if (curthread->t_flag & T_WOULDBLOCK) { | |
1734 curthread->t_flag &= ~T_WOULDBLOCK; | |
1735 if (res != (char *)&res_buf) | |
1736 SVC_FREERES(xprt); | |
1737 error++; | |
1738 goto done; | |
1739 } | |
1740 } | |
1741 | |
1742 if (auth_tooweak(req, res)) { | |
1743 svcerr_weakauth(xprt); | |
1744 error++; | |
1745 goto done; | |
1746 } | |
1747 | |
1748 /* | |
1749 * Check to see if logging has been enabled on the server. | |
1750 * If so, then obtain the export info struct to be used for | |
1751 * the later writing of the log record. This is done for | |
1752 * the case that a lookup is done across a non-logged public | |
1753 * file system. | |
1754 */ | |
1755 if (nfslog_buffer_list != NULL) { | |
1756 nfslog_exi = nfslog_get_exi(exi, req, res, &nfslog_rec_id); | |
1757 /* | |
1758 * Is logging enabled? | |
1759 */ | |
1760 logging_enabled = (nfslog_exi != NULL); | |
1761 | |
1762 /* | |
1763 * Copy the netbuf for logging purposes, before it is | |
1764 * freed by svc_sendreply(). | |
1765 */ | |
1766 if (logging_enabled) { | |
1767 NFSLOG_COPY_NETBUF(nfslog_exi, xprt, &nb); | |
1768 /* | |
1769 * If RPC_MAPRESP flag set (i.e. in V2 ops) the | |
1770 * res gets copied directly into the mbuf and | |
1771 * may be freed soon after the sendreply. So we | |
1772 * must copy it here to a safe place... | |
1773 */ | |
1774 if (res != (char *)&res_buf) { | |
1775 bcopy(res, (char *)&res_buf, disp->dis_ressz); | |
1776 } | |
1777 } | |
1778 } | |
1779 | |
1780 /* | |
1781 * Serialize and send results struct | |
1782 */ | |
1783 #ifdef DEBUG | |
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1784 if (rfs_no_fast_xdrres == 0 && res != (char *)&res_buf) |
0 | 1785 #else |
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1786 if (res != (char *)&res_buf) |
0 | 1787 #endif |
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1788 { |
0 | 1789 if (!svc_sendreply(xprt, disp->dis_fastxdrres, res)) { |
1790 cmn_err(CE_NOTE, "%s: bad sendreply", pgmname); | |
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1791 svcerr_systemerr(xprt); |
0 | 1792 error++; |
1793 } | |
1794 } else { | |
1795 if (!svc_sendreply(xprt, disp->dis_xdrres, res)) { | |
1796 cmn_err(CE_NOTE, "%s: bad sendreply", pgmname); | |
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1797 svcerr_systemerr(xprt); |
0 | 1798 error++; |
1799 } | |
1800 } | |
1801 | |
1802 /* | |
1803 * Log if needed | |
1804 */ | |
1805 if (logging_enabled) { | |
1806 nfslog_write_record(nfslog_exi, req, args, (char *)&res_buf, | |
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1807 cr, &nb, nfslog_rec_id, NFSLOG_ONE_BUFFER); |
0 | 1808 exi_rele(nfslog_exi); |
1809 kmem_free((&nb)->buf, (&nb)->len); | |
1810 } | |
1811 | |
1812 /* | |
1813 * Free results struct. With the addition of NFS V4 we can | |
1814 * have non-idempotent procedures with functions. | |
1815 */ | |
1816 if (disp->dis_resfree != nullfree && dupcached == FALSE) { | |
1817 (*disp->dis_resfree)(res); | |
1818 } | |
1819 | |
1820 done: | |
1821 /* | |
1822 * Free arguments struct | |
1823 */ | |
1824 if (disp) { | |
1825 if (!SVC_FREEARGS(xprt, disp->dis_xdrargs, args)) { | |
1826 cmn_err(CE_NOTE, "%s: bad freeargs", pgmname); | |
1827 error++; | |
1828 } | |
1829 } else { | |
1830 if (!SVC_FREEARGS(xprt, (xdrproc_t)0, (caddr_t)0)) { | |
1831 cmn_err(CE_NOTE, "%s: bad freeargs", pgmname); | |
1832 error++; | |
1833 } | |
1834 } | |
1835 | |
1836 if (exi != NULL) | |
1837 exi_rele(exi); | |
1838 | |
1839 global_svstat_ptr[req->rq_vers][NFS_BADCALLS].value.ui64 += error; | |
1840 | |
1841 global_svstat_ptr[req->rq_vers][NFS_CALLS].value.ui64++; | |
1842 } | |
1843 | |
1844 static void | |
1845 rfs_dispatch(struct svc_req *req, SVCXPRT *xprt) | |
1846 { | |
1847 common_dispatch(req, xprt, NFS_VERSMIN, NFS_VERSMAX, | |
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1848 "NFS", rfs_disptable); |
0 | 1849 } |
1850 | |
1851 static char *aclcallnames_v2[] = { | |
1852 "ACL2_NULL", | |
1853 "ACL2_GETACL", | |
1854 "ACL2_SETACL", | |
1855 "ACL2_GETATTR", | |
1856 "ACL2_ACCESS", | |
1857 "ACL2_GETXATTRDIR" | |
1858 }; | |
1859 | |
1860 static struct rpcdisp acldisptab_v2[] = { | |
1861 /* | |
1862 * ACL VERSION 2 | |
1863 */ | |
1864 | |
1865 /* ACL2_NULL = 0 */ | |
1866 {rpc_null, | |
1867 xdr_void, NULL_xdrproc_t, 0, | |
1868 xdr_void, NULL_xdrproc_t, 0, | |
1869 nullfree, RPC_IDEMPOTENT, | |
1870 0}, | |
1871 | |
1872 /* ACL2_GETACL = 1 */ | |
1873 {acl2_getacl, | |
1874 xdr_GETACL2args, xdr_fastGETACL2args, sizeof (GETACL2args), | |
1875 xdr_GETACL2res, NULL_xdrproc_t, sizeof (GETACL2res), | |
1876 acl2_getacl_free, RPC_IDEMPOTENT, | |
1877 acl2_getacl_getfh}, | |
1878 | |
1879 /* ACL2_SETACL = 2 */ | |
1880 {acl2_setacl, | |
1881 xdr_SETACL2args, NULL_xdrproc_t, sizeof (SETACL2args), | |
1882 #ifdef _LITTLE_ENDIAN | |
1883 xdr_SETACL2res, xdr_fastSETACL2res, sizeof (SETACL2res), | |
1884 #else | |
1885 xdr_SETACL2res, NULL_xdrproc_t, sizeof (SETACL2res), | |
1886 #endif | |
1887 nullfree, RPC_MAPRESP, | |
1888 acl2_setacl_getfh}, | |
1889 | |
1890 /* ACL2_GETATTR = 3 */ | |
1891 {acl2_getattr, | |
1892 xdr_GETATTR2args, xdr_fastGETATTR2args, sizeof (GETATTR2args), | |
1893 #ifdef _LITTLE_ENDIAN | |
1894 xdr_GETATTR2res, xdr_fastGETATTR2res, sizeof (GETATTR2res), | |
1895 #else | |
1896 xdr_GETATTR2res, NULL_xdrproc_t, sizeof (GETATTR2res), | |
1897 #endif | |
1898 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
1899 acl2_getattr_getfh}, | |
1900 | |
1901 /* ACL2_ACCESS = 4 */ | |
1902 {acl2_access, | |
1903 xdr_ACCESS2args, xdr_fastACCESS2args, sizeof (ACCESS2args), | |
1904 #ifdef _LITTLE_ENDIAN | |
1905 xdr_ACCESS2res, xdr_fastACCESS2res, sizeof (ACCESS2res), | |
1906 #else | |
1907 xdr_ACCESS2res, NULL_xdrproc_t, sizeof (ACCESS2res), | |
1908 #endif | |
1909 nullfree, RPC_IDEMPOTENT|RPC_MAPRESP, | |
1910 acl2_access_getfh}, | |
1911 | |
1912 /* ACL2_GETXATTRDIR = 5 */ | |
1913 {acl2_getxattrdir, | |
1914 xdr_GETXATTRDIR2args, NULL_xdrproc_t, sizeof (GETXATTRDIR2args), | |
1915 xdr_GETXATTRDIR2res, NULL_xdrproc_t, sizeof (GETXATTRDIR2res), | |
1916 nullfree, RPC_IDEMPOTENT, | |
1917 acl2_getxattrdir_getfh}, | |
1918 }; | |
1919 | |
1920 static char *aclcallnames_v3[] = { | |
1921 "ACL3_NULL", | |
1922 "ACL3_GETACL", | |
1923 "ACL3_SETACL", | |
1924 "ACL3_GETXATTRDIR" | |
1925 }; | |
1926 | |
1927 static struct rpcdisp acldisptab_v3[] = { | |
1928 /* | |
1929 * ACL VERSION 3 | |
1930 */ | |
1931 | |
1932 /* ACL3_NULL = 0 */ | |
1933 {rpc_null, | |
1934 xdr_void, NULL_xdrproc_t, 0, | |
1935 xdr_void, NULL_xdrproc_t, 0, | |
1936 nullfree, RPC_IDEMPOTENT, | |
1937 0}, | |
1938 | |
1939 /* ACL3_GETACL = 1 */ | |
1940 {acl3_getacl, | |
1941 xdr_GETACL3args, NULL_xdrproc_t, sizeof (GETACL3args), | |
1942 xdr_GETACL3res, NULL_xdrproc_t, sizeof (GETACL3res), | |
1943 acl3_getacl_free, RPC_IDEMPOTENT, | |
1944 acl3_getacl_getfh}, | |
1945 | |
1946 /* ACL3_SETACL = 2 */ | |
1947 {acl3_setacl, | |
1948 xdr_SETACL3args, NULL_xdrproc_t, sizeof (SETACL3args), | |
1949 xdr_SETACL3res, NULL_xdrproc_t, sizeof (SETACL3res), | |
1950 nullfree, 0, | |
1951 acl3_setacl_getfh}, | |
1952 | |
1953 /* ACL3_GETXATTRDIR = 3 */ | |
1954 {acl3_getxattrdir, | |
1955 xdr_GETXATTRDIR3args, NULL_xdrproc_t, sizeof (GETXATTRDIR3args), | |
1956 xdr_GETXATTRDIR3res, NULL_xdrproc_t, sizeof (GETXATTRDIR3res), | |
1957 nullfree, RPC_IDEMPOTENT, | |
1958 acl3_getxattrdir_getfh}, | |
1959 }; | |
1960 | |
1961 static struct rpc_disptable acl_disptable[] = { | |
1962 {sizeof (acldisptab_v2) / sizeof (acldisptab_v2[0]), | |
1963 aclcallnames_v2, | |
1964 &aclproccnt_v2_ptr, acldisptab_v2}, | |
1965 {sizeof (acldisptab_v3) / sizeof (acldisptab_v3[0]), | |
1966 aclcallnames_v3, | |
1967 &aclproccnt_v3_ptr, acldisptab_v3}, | |
1968 }; | |
1969 | |
1970 static void | |
1971 acl_dispatch(struct svc_req *req, SVCXPRT *xprt) | |
1972 { | |
1973 common_dispatch(req, xprt, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, | |
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1974 "ACL", acl_disptable); |
0 | 1975 } |
1976 | |
1977 int | |
1978 checkwin(int flavor, int window, struct svc_req *req) | |
1979 { | |
1980 struct authdes_cred *adc; | |
1981 | |
1982 switch (flavor) { | |
1983 case AUTH_DES: | |
1984 adc = (struct authdes_cred *)req->rq_clntcred; | |
1985 if (adc->adc_fullname.window > window) | |
1986 return (0); | |
1987 break; | |
1988 | |
1989 default: | |
1990 break; | |
1991 } | |
1992 return (1); | |
1993 } | |
1994 | |
1995 | |
1996 /* | |
1997 * checkauth() will check the access permission against the export | |
1998 * information. Then map root uid/gid to appropriate uid/gid. | |
1999 * | |
2000 * This routine is used by NFS V3 and V2 code. | |
2001 */ | |
2002 static int | |
2003 checkauth(struct exportinfo *exi, struct svc_req *req, cred_t *cr, int anon_ok, | |
2004 bool_t publicfh_ok) | |
2005 { | |
2006 int i, nfsflavor, rpcflavor, stat, access; | |
2007 struct secinfo *secp; | |
2008 caddr_t principal; | |
2009 char buf[INET6_ADDRSTRLEN]; /* to hold both IPv4 and IPv6 addr */ | |
2010 int anon_res = 0; | |
2011 | |
2012 /* | |
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2013 * Check for privileged port number |
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2014 * N.B.: this assumes that we know the format of a netbuf. |
0 | 2015 */ |
2016 if (nfs_portmon) { | |
2017 struct sockaddr *ca; | |
2018 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; | |
2019 | |
2020 if (ca == NULL) | |
2021 return (0); | |
2022 | |
2023 if ((ca->sa_family == AF_INET && | |
2024 ntohs(((struct sockaddr_in *)ca)->sin_port) >= | |
2025 IPPORT_RESERVED) || | |
2026 (ca->sa_family == AF_INET6 && | |
2027 ntohs(((struct sockaddr_in6 *)ca)->sin6_port) >= | |
2028 IPPORT_RESERVED)) { | |
2029 cmn_err(CE_NOTE, | |
2030 "nfs_server: client %s%ssent NFS request from " | |
2031 "unprivileged port", | |
2032 client_name(req), client_addr(req, buf)); | |
2033 return (0); | |
2034 } | |
2035 } | |
2036 | |
2037 /* | |
2038 * return 1 on success or 0 on failure | |
2039 */ | |
2040 stat = sec_svc_getcred(req, cr, &principal, &nfsflavor); | |
2041 | |
2042 /* | |
2043 * A failed AUTH_UNIX svc_get_cred() implies we couldn't set | |
2044 * the credentials; below we map that to anonymous. | |
2045 */ | |
2046 if (!stat && nfsflavor != AUTH_UNIX) { | |
2047 cmn_err(CE_NOTE, | |
2048 "nfs_server: couldn't get unix cred for %s", | |
2049 client_name(req)); | |
2050 return (0); | |
2051 } | |
2052 | |
2053 /* | |
2054 * Short circuit checkauth() on operations that support the | |
2055 * public filehandle, and if the request for that operation | |
2056 * is using the public filehandle. Note that we must call | |
2057 * sec_svc_getcred() first so that xp_cookie is set to the | |
2058 * right value. Normally xp_cookie is just the RPC flavor | |
2059 * of the the request, but in the case of RPCSEC_GSS it | |
2060 * could be a pseudo flavor. | |
2061 */ | |
2062 if (publicfh_ok) | |
2063 return (1); | |
2064 | |
2065 rpcflavor = req->rq_cred.oa_flavor; | |
2066 /* | |
2067 * Check if the auth flavor is valid for this export | |
2068 */ | |
2069 access = nfsauth_access(exi, req); | |
2070 if (access & NFSAUTH_DROP) | |
2071 return (-1); /* drop the request */ | |
2072 | |
2073 if (access & NFSAUTH_DENIED) { | |
2074 /* | |
2075 * If anon_ok == 1 and we got NFSAUTH_DENIED, it was | |
2076 * probably due to the flavor not matching during the | |
2077 * the mount attempt. So map the flavor to AUTH_NONE | |
2078 * so that the credentials get mapped to the anonymous | |
2079 * user. | |
2080 */ | |
2081 if (anon_ok == 1) | |
2082 rpcflavor = AUTH_NONE; | |
2083 else | |
2084 return (0); /* deny access */ | |
2085 | |
2086 } else if (access & NFSAUTH_MAPNONE) { | |
2087 /* | |
2088 * Access was granted even though the flavor mismatched | |
2089 * because AUTH_NONE was one of the exported flavors. | |
2090 */ | |
2091 rpcflavor = AUTH_NONE; | |
2092 | |
2093 } else if (access & NFSAUTH_WRONGSEC) { | |
2094 /* | |
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2095 * NFSAUTH_WRONGSEC is used for NFSv4. If we get here, |
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2096 * it means a client ignored the list of allowed flavors |
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2097 * returned via the MOUNT protocol. So we just disallow it! |
0 | 2098 */ |
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2099 return (0); |
0 | 2100 } |
2101 | |
2102 switch (rpcflavor) { | |
2103 case AUTH_NONE: | |
2104 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
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2105 exi->exi_export.ex_anon); |
0 | 2106 (void) crsetgroups(cr, 0, NULL); |
2107 break; | |
2108 | |
2109 case AUTH_UNIX: | |
2110 if (!stat || crgetuid(cr) == 0 && !(access & NFSAUTH_ROOT)) { | |
2111 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
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2112 exi->exi_export.ex_anon); |
0 | 2113 (void) crsetgroups(cr, 0, NULL); |
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2114 } else if (!stat || crgetuid(cr) == 0 && |
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2115 access & NFSAUTH_ROOT) { |
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2116 /* |
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2117 * It is root, so apply rootid to get real UID |
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2118 * Find the secinfo structure. We should be able |
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2119 * to find it by the time we reach here. |
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2120 * nfsauth_access() has done the checking. |
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2121 */ |
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2122 secp = NULL; |
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2123 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { |
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2124 struct secinfo *sptr; |
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2125 sptr = &exi->exi_export.ex_secinfo[i]; |
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2126 if (sptr->s_secinfo.sc_nfsnum == nfsflavor) { |
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2127 secp = sptr; |
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2128 break; |
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2129 } |
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2130 } |
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2131 if (secp != NULL) { |
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2132 (void) crsetugid(cr, secp->s_rootid, |
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2133 secp->s_rootid); |
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2134 (void) crsetgroups(cr, 0, NULL); |
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2135 } |
0 | 2136 } |
2137 break; | |
2138 | |
2139 case AUTH_DES: | |
2140 case RPCSEC_GSS: | |
2141 /* | |
2142 * Find the secinfo structure. We should be able | |
2143 * to find it by the time we reach here. | |
2144 * nfsauth_access() has done the checking. | |
2145 */ | |
2146 secp = NULL; | |
2147 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { | |
2148 if (exi->exi_export.ex_secinfo[i].s_secinfo.sc_nfsnum == | |
2149 nfsflavor) { | |
2150 secp = &exi->exi_export.ex_secinfo[i]; | |
2151 break; | |
2152 } | |
2153 } | |
2154 | |
2155 if (!secp) { | |
2156 cmn_err(CE_NOTE, "nfs_server: client %s%shad " | |
2157 "no secinfo data for flavor %d", | |
2158 client_name(req), client_addr(req, buf), | |
2159 nfsflavor); | |
2160 return (0); | |
2161 } | |
2162 | |
2163 if (!checkwin(rpcflavor, secp->s_window, req)) { | |
2164 cmn_err(CE_NOTE, | |
2165 "nfs_server: client %s%sused invalid " | |
2166 "auth window value", | |
2167 client_name(req), client_addr(req, buf)); | |
2168 return (0); | |
2169 } | |
2170 | |
2171 /* | |
2172 * Map root principals listed in the share's root= list to root, | |
2173 * and map any others principals that were mapped to root by RPC | |
2174 * to anon. | |
2175 */ | |
2176 if (principal && sec_svc_inrootlist(rpcflavor, principal, | |
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2177 secp->s_rootcnt, secp->s_rootnames)) { |
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2178 if (crgetuid(cr) == 0 && secp->s_rootid == 0) |
0 | 2179 return (1); |
2180 | |
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2181 |
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2182 (void) crsetugid(cr, secp->s_rootid, secp->s_rootid); |
0 | 2183 |
2184 /* | |
2185 * NOTE: If and when kernel-land privilege tracing is | |
2186 * added this may have to be replaced with code that | |
2187 * retrieves root's supplementary groups (e.g., using | |
2188 * kgss_get_group_info(). In the meantime principals | |
2189 * mapped to uid 0 get all privileges, so setting cr's | |
2190 * supplementary groups for them does nothing. | |
2191 */ | |
2192 (void) crsetgroups(cr, 0, NULL); | |
2193 | |
2194 return (1); | |
2195 } | |
2196 | |
2197 /* | |
2198 * Not a root princ, or not in root list, map UID 0/nobody to | |
2199 * the anon ID for the share. (RPC sets cr's UIDs and GIDs to | |
2200 * UID_NOBODY and GID_NOBODY, respectively.) | |
2201 */ | |
2202 if (crgetuid(cr) != 0 && | |
2203 (crgetuid(cr) != UID_NOBODY || crgetgid(cr) != GID_NOBODY)) | |
2204 return (1); | |
2205 | |
2206 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
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2207 exi->exi_export.ex_anon); |
0 | 2208 (void) crsetgroups(cr, 0, NULL); |
2209 break; | |
2210 default: | |
2211 return (0); | |
2212 } /* switch on rpcflavor */ | |
2213 | |
2214 /* | |
2215 * Even if anon access is disallowed via ex_anon == -1, we allow | |
2216 * this access if anon_ok is set. So set creds to the default | |
2217 * "nobody" id. | |
2218 */ | |
2219 if (anon_res != 0) { | |
2220 if (anon_ok == 0) { | |
2221 cmn_err(CE_NOTE, | |
2222 "nfs_server: client %s%ssent wrong " | |
2223 "authentication for %s", | |
2224 client_name(req), client_addr(req, buf), | |
2225 exi->exi_export.ex_path ? | |
2226 exi->exi_export.ex_path : "?"); | |
2227 return (0); | |
2228 } | |
2229 | |
2230 if (crsetugid(cr, UID_NOBODY, GID_NOBODY) != 0) | |
2231 return (0); | |
2232 } | |
2233 | |
2234 return (1); | |
2235 } | |
2236 | |
2237 /* | |
2238 * returns 0 on failure, -1 on a drop, -2 on wrong security flavor, | |
2239 * and 1 on success | |
2240 */ | |
2241 int | |
2242 checkauth4(struct compound_state *cs, struct svc_req *req) | |
2243 { | |
2244 int i, rpcflavor, access; | |
2245 struct secinfo *secp; | |
2246 char buf[MAXHOST + 1]; | |
2247 int anon_res = 0, nfsflavor; | |
2248 struct exportinfo *exi; | |
2249 cred_t *cr; | |
2250 caddr_t principal; | |
2251 | |
2252 exi = cs->exi; | |
2253 cr = cs->cr; | |
2254 principal = cs->principal; | |
2255 nfsflavor = cs->nfsflavor; | |
2256 | |
2257 ASSERT(cr != NULL); | |
2258 | |
2259 rpcflavor = req->rq_cred.oa_flavor; | |
2260 cs->access &= ~CS_ACCESS_LIMITED; | |
2261 | |
2262 /* | |
9987
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2263 * Check for privileged port number |
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2264 * N.B.: this assumes that we know the format of a netbuf. |
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2265 */ |
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2266 if (nfs_portmon) { |
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2267 struct sockaddr *ca; |
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2268 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; |
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2269 |
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2270 if (ca == NULL) |
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2271 return (0); |
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2272 |
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2273 if ((ca->sa_family == AF_INET && |
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2274 ntohs(((struct sockaddr_in *)ca)->sin_port) >= |
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2275 IPPORT_RESERVED) || |
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2276 (ca->sa_family == AF_INET6 && |
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2277 ntohs(((struct sockaddr_in6 *)ca)->sin6_port) >= |
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2278 IPPORT_RESERVED)) { |
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2279 cmn_err(CE_NOTE, |
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2280 "nfs_server: client %s%ssent NFSv4 request from " |
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2281 "unprivileged port", |
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2282 client_name(req), client_addr(req, buf)); |
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2283 return (0); |
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2284 } |
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2285 } |
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2286 |
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2287 /* |
0 | 2288 * Check the access right per auth flavor on the vnode of |
2289 * this export for the given request. | |
2290 */ | |
2291 access = nfsauth4_access(cs->exi, cs->vp, req); | |
2292 | |
2293 if (access & NFSAUTH_WRONGSEC) | |
2294 return (-2); /* no access for this security flavor */ | |
2295 | |
2296 if (access & NFSAUTH_DROP) | |
2297 return (-1); /* drop the request */ | |
2298 | |
2299 if (access & NFSAUTH_DENIED) { | |
2300 | |
2301 if (exi->exi_export.ex_seccnt > 0) | |
2302 return (0); /* deny access */ | |
2303 | |
2304 } else if (access & NFSAUTH_LIMITED) { | |
2305 | |
2306 cs->access |= CS_ACCESS_LIMITED; | |
2307 | |
2308 } else if (access & NFSAUTH_MAPNONE) { | |
2309 /* | |
2310 * Access was granted even though the flavor mismatched | |
2311 * because AUTH_NONE was one of the exported flavors. | |
2312 */ | |
2313 rpcflavor = AUTH_NONE; | |
2314 } | |
2315 | |
2316 /* | |
2317 * XXX probably need to redo some of it for nfsv4? | |
2318 * return 1 on success or 0 on failure | |
2319 */ | |
2320 | |
2321 switch (rpcflavor) { | |
2322 case AUTH_NONE: | |
2323 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
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2324 exi->exi_export.ex_anon); |
0 | 2325 (void) crsetgroups(cr, 0, NULL); |
2326 break; | |
2327 | |
2328 case AUTH_UNIX: | |
2329 if (crgetuid(cr) == 0 && !(access & NFSAUTH_ROOT)) { | |
2330 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
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2331 exi->exi_export.ex_anon); |
0 | 2332 (void) crsetgroups(cr, 0, NULL); |
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2333 } else if (crgetuid(cr) == 0 && access & NFSAUTH_ROOT) { |
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2334 /* |
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2335 * It is root, so apply rootid to get real UID |
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2336 * Find the secinfo structure. We should be able |
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2337 * to find it by the time we reach here. |
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2338 * nfsauth_access() has done the checking. |
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2339 */ |
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2340 secp = NULL; |
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2341 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { |
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2342 struct secinfo *sptr; |
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2343 sptr = &exi->exi_export.ex_secinfo[i]; |
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2344 if (sptr->s_secinfo.sc_nfsnum == nfsflavor) { |
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2345 secp = &exi->exi_export.ex_secinfo[i]; |
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2346 break; |
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2347 } |
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2348 } |
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2349 if (secp != NULL) { |
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2350 (void) crsetugid(cr, secp->s_rootid, |
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2351 secp->s_rootid); |
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2352 (void) crsetgroups(cr, 0, NULL); |
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2353 } |
0 | 2354 } |
2355 break; | |
2356 | |
2357 default: | |
2358 /* | |
2359 * Find the secinfo structure. We should be able | |
2360 * to find it by the time we reach here. | |
2361 * nfsauth_access() has done the checking. | |
2362 */ | |
2363 secp = NULL; | |
2364 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { | |
2365 if (exi->exi_export.ex_secinfo[i].s_secinfo.sc_nfsnum == | |
2366 nfsflavor) { | |
2367 secp = &exi->exi_export.ex_secinfo[i]; | |
2368 break; | |
2369 } | |
2370 } | |
2371 | |
2372 if (!secp) { | |
2373 cmn_err(CE_NOTE, "nfs_server: client %s%shad " | |
2374 "no secinfo data for flavor %d", | |
2375 client_name(req), client_addr(req, buf), | |
2376 nfsflavor); | |
2377 return (0); | |
2378 } | |
2379 | |
2380 if (!checkwin(rpcflavor, secp->s_window, req)) { | |
2381 cmn_err(CE_NOTE, | |
2382 "nfs_server: client %s%sused invalid " | |
2383 "auth window value", | |
2384 client_name(req), client_addr(req, buf)); | |
2385 return (0); | |
2386 } | |
2387 | |
2388 /* | |
2389 * Map root principals listed in the share's root= list to root, | |
2390 * and map any others principals that were mapped to root by RPC | |
7961
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2391 * to anon. If not going to anon, set to rootid (root_mapping). |
0 | 2392 */ |
2393 if (principal && sec_svc_inrootlist(rpcflavor, principal, | |
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2394 secp->s_rootcnt, secp->s_rootnames)) { |
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2395 if (crgetuid(cr) == 0 && secp->s_rootid == 0) |
0 | 2396 return (1); |
2397 | |
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2398 (void) crsetugid(cr, secp->s_rootid, secp->s_rootid); |
0 | 2399 |
2400 /* | |
2401 * NOTE: If and when kernel-land privilege tracing is | |
2402 * added this may have to be replaced with code that | |
2403 * retrieves root's supplementary groups (e.g., using | |
2404 * kgss_get_group_info(). In the meantime principals | |
2405 * mapped to uid 0 get all privileges, so setting cr's | |
2406 * supplementary groups for them does nothing. | |
2407 */ | |
2408 (void) crsetgroups(cr, 0, NULL); | |
2409 | |
2410 return (1); | |
2411 } | |
2412 | |
2413 /* | |
2414 * Not a root princ, or not in root list, map UID 0/nobody to | |
2415 * the anon ID for the share. (RPC sets cr's UIDs and GIDs to | |
2416 * UID_NOBODY and GID_NOBODY, respectively.) | |
2417 */ | |
2418 if (crgetuid(cr) != 0 && | |
2419 (crgetuid(cr) != UID_NOBODY || crgetgid(cr) != GID_NOBODY)) | |
2420 return (1); | |
2421 | |
2422 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
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2423 exi->exi_export.ex_anon); |
0 | 2424 (void) crsetgroups(cr, 0, NULL); |
2425 break; | |
2426 } /* switch on rpcflavor */ | |
2427 | |
2428 /* | |
2429 * Even if anon access is disallowed via ex_anon == -1, we allow | |
2430 * this access if anon_ok is set. So set creds to the default | |
2431 * "nobody" id. | |
2432 */ | |
2433 | |
2434 if (anon_res != 0) { | |
2435 cmn_err(CE_NOTE, | |
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2436 "nfs_server: client %s%ssent wrong " |
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2437 "authentication for %s", |
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2438 client_name(req), client_addr(req, buf), |
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2439 exi->exi_export.ex_path ? |
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2440 exi->exi_export.ex_path : "?"); |
0 | 2441 return (0); |
2442 } | |
2443 | |
2444 return (1); | |
2445 } | |
2446 | |
2447 | |
2448 static char * | |
2449 client_name(struct svc_req *req) | |
2450 { | |
2451 char *hostname = NULL; | |
2452 | |
2453 /* | |
2454 * If it's a Unix cred then use the | |
2455 * hostname from the credential. | |
2456 */ | |
2457 if (req->rq_cred.oa_flavor == AUTH_UNIX) { | |
2458 hostname = ((struct authunix_parms *) | |
2459 req->rq_clntcred)->aup_machname; | |
2460 } | |
2461 if (hostname == NULL) | |
2462 hostname = ""; | |
2463 | |
2464 return (hostname); | |
2465 } | |
2466 | |
2467 static char * | |
2468 client_addr(struct svc_req *req, char *buf) | |
2469 { | |
2470 struct sockaddr *ca; | |
2471 uchar_t *b; | |
2472 char *frontspace = ""; | |
2473 | |
2474 /* | |
2475 * We assume we are called in tandem with client_name and the | |
2476 * format string looks like "...client %s%sblah blah..." | |
2477 * | |
2478 * If it's a Unix cred then client_name returned | |
2479 * a host name, so we need insert a space between host name | |
2480 * and IP address. | |
2481 */ | |
2482 if (req->rq_cred.oa_flavor == AUTH_UNIX) | |
2483 frontspace = " "; | |
2484 | |
2485 /* | |
2486 * Convert the caller's IP address to a dotted string | |
2487 */ | |
2488 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; | |
2489 | |
2490 if (ca->sa_family == AF_INET) { | |
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2491 b = (uchar_t *)&((struct sockaddr_in *)ca)->sin_addr; |
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2492 (void) sprintf(buf, "%s(%d.%d.%d.%d) ", frontspace, |
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2493 b[0] & 0xFF, b[1] & 0xFF, b[2] & 0xFF, b[3] & 0xFF); |
0 | 2494 } else if (ca->sa_family == AF_INET6) { |
2495 struct sockaddr_in6 *sin6; | |
2496 sin6 = (struct sockaddr_in6 *)ca; | |
2497 (void) kinet_ntop6((uchar_t *)&sin6->sin6_addr, | |
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2498 buf, INET6_ADDRSTRLEN); |
0 | 2499 |
2500 } else { | |
2501 | |
2502 /* | |
2503 * No IP address to print. If there was a host name | |
2504 * printed, then we print a space. | |
2505 */ | |
2506 (void) sprintf(buf, frontspace); | |
2507 } | |
2508 | |
2509 return (buf); | |
2510 } | |
2511 | |
2512 /* | |
2513 * NFS Server initialization routine. This routine should only be called | |
2514 * once. It performs the following tasks: | |
2515 * - Call sub-initialization routines (localize access to variables) | |
2516 * - Initialize all locks | |
2517 * - initialize the version 3 write verifier | |
2518 */ | |
2519 int | |
2520 nfs_srvinit(void) | |
2521 { | |
2522 int error; | |
2523 | |
2524 error = nfs_exportinit(); | |
2525 if (error != 0) | |
2526 return (error); | |
2527 error = rfs4_srvrinit(); | |
2528 if (error != 0) { | |
2529 nfs_exportfini(); | |
2530 return (error); | |
2531 } | |
2532 rfs_srvrinit(); | |
2533 rfs3_srvrinit(); | |
2534 nfsauth_init(); | |
2535 | |
2536 /* Init the stuff to control start/stop */ | |
2537 nfs_server_upordown = NFS_SERVER_STOPPED; | |
2538 mutex_init(&nfs_server_upordown_lock, NULL, MUTEX_DEFAULT, NULL); | |
2539 cv_init(&nfs_server_upordown_cv, NULL, CV_DEFAULT, NULL); | |
2540 mutex_init(&rdma_wait_mutex, NULL, MUTEX_DEFAULT, NULL); | |
2541 cv_init(&rdma_wait_cv, NULL, CV_DEFAULT, NULL); | |
2542 | |
2543 return (0); | |
2544 } | |
2545 | |
2546 /* | |
2547 * NFS Server finalization routine. This routine is called to cleanup the | |
2548 * initialization work previously performed if the NFS server module could | |
2549 * not be loaded correctly. | |
2550 */ | |
2551 void | |
2552 nfs_srvfini(void) | |
2553 { | |
2554 nfsauth_fini(); | |
2555 rfs3_srvrfini(); | |
2556 rfs_srvrfini(); | |
2557 nfs_exportfini(); | |
2558 | |
2559 mutex_destroy(&nfs_server_upordown_lock); | |
2560 cv_destroy(&nfs_server_upordown_cv); | |
2561 mutex_destroy(&rdma_wait_mutex); | |
2562 cv_destroy(&rdma_wait_cv); | |
2563 } | |
2564 | |
2565 /* | |
2566 * Set up an iovec array of up to cnt pointers. | |
2567 */ | |
2568 | |
2569 void | |
2570 mblk_to_iov(mblk_t *m, int cnt, struct iovec *iovp) | |
2571 { | |
2572 while (m != NULL && cnt-- > 0) { | |
2573 iovp->iov_base = (caddr_t)m->b_rptr; | |
2574 iovp->iov_len = (m->b_wptr - m->b_rptr); | |
2575 iovp++; | |
2576 m = m->b_cont; | |
2577 } | |
2578 } | |
2579 | |
2580 /* | |
2581 * Common code between NFS Version 2 and NFS Version 3 for the public | |
2582 * filehandle multicomponent lookups. | |
2583 */ | |
2584 | |
2585 /* | |
2586 * Public filehandle evaluation of a multi-component lookup, following | |
2587 * symbolic links, if necessary. This may result in a vnode in another | |
2588 * filesystem, which is OK as long as the other filesystem is exported. | |
2589 * | |
2590 * Note that the exi will be set either to NULL or a new reference to the | |
2591 * exportinfo struct that corresponds to the vnode of the multi-component path. | |
2592 * It is the callers responsibility to release this reference. | |
2593 */ | |
2594 int | |
2595 rfs_publicfh_mclookup(char *p, vnode_t *dvp, cred_t *cr, vnode_t **vpp, | |
2596 struct exportinfo **exi, struct sec_ol *sec) | |
2597 { | |
2598 int pathflag; | |
2599 vnode_t *mc_dvp = NULL; | |
2600 vnode_t *realvp; | |
2601 int error; | |
2602 | |
2603 *exi = NULL; | |
2604 | |
2605 /* | |
2606 * check if the given path is a url or native path. Since p is | |
2607 * modified by MCLpath(), it may be empty after returning from | |
2608 * there, and should be checked. | |
2609 */ | |
2610 if ((pathflag = MCLpath(&p)) == -1) | |
2611 return (EIO); | |
2612 | |
2613 /* | |
2614 * If pathflag is SECURITY_QUERY, turn the SEC_QUERY bit | |
2615 * on in sec->sec_flags. This bit will later serve as an | |
2616 * indication in makefh_ol() or makefh3_ol() to overload the | |
2617 * filehandle to contain the sec modes used by the server for | |
2618 * the path. | |
2619 */ | |
2620 if (pathflag == SECURITY_QUERY) { | |
2621 if ((sec->sec_index = (uint_t)(*p)) > 0) { | |
2622 sec->sec_flags |= SEC_QUERY; | |
2623 p++; | |
2624 if ((pathflag = MCLpath(&p)) == -1) | |
2625 return (EIO); | |
2626 } else { | |
2627 cmn_err(CE_NOTE, | |
2628 "nfs_server: invalid security index %d, " | |
2629 "violating WebNFS SNEGO protocol.", sec->sec_index); | |
2630 return (EIO); | |
2631 } | |
2632 } | |
2633 | |
2634 if (p[0] == '\0') { | |
2635 error = ENOENT; | |
2636 goto publicfh_done; | |
2637 } | |
2638 | |
2639 error = rfs_pathname(p, &mc_dvp, vpp, dvp, cr, pathflag); | |
2640 | |
2641 /* | |
2642 * If name resolves to "/" we get EINVAL since we asked for | |
2643 * the vnode of the directory that the file is in. Try again | |
2644 * with NULL directory vnode. | |
2645 */ | |
2646 if (error == EINVAL) { | |
2647 error = rfs_pathname(p, NULL, vpp, dvp, cr, pathflag); | |
2648 if (!error) { | |
2649 ASSERT(*vpp != NULL); | |
2650 if ((*vpp)->v_type == VDIR) { | |
2651 VN_HOLD(*vpp); | |
2652 mc_dvp = *vpp; | |
2653 } else { | |
2654 /* | |
2655 * This should not happen, the filesystem is | |
2656 * in an inconsistent state. Fail the lookup | |
2657 * at this point. | |
2658 */ | |
2659 VN_RELE(*vpp); | |
2660 error = EINVAL; | |
2661 } | |
2662 } | |
2663 } | |
2664 | |
2665 if (error) | |
2666 goto publicfh_done; | |
2667 | |
2668 if (*vpp == NULL) { | |
2669 error = ENOENT; | |
2670 goto publicfh_done; | |
2671 } | |
2672 | |
2673 ASSERT(mc_dvp != NULL); | |
2674 ASSERT(*vpp != NULL); | |
2675 | |
2676 if ((*vpp)->v_type == VDIR) { | |
2677 do { | |
2678 /* | |
2679 * *vpp may be an AutoFS node, so we perform | |
2680 * a VOP_ACCESS() to trigger the mount of the intended | |
2681 * filesystem, so we can perform the lookup in the | |
2682 * intended filesystem. | |
2683 */ | |
5331 | 2684 (void) VOP_ACCESS(*vpp, 0, 0, cr, NULL); |
0 | 2685 |
2686 /* | |
2687 * If vnode is covered, get the | |
2688 * the topmost vnode. | |
2689 */ | |
2690 if (vn_mountedvfs(*vpp) != NULL) { | |
2691 error = traverse(vpp); | |
2692 if (error) { | |
2693 VN_RELE(*vpp); | |
2694 goto publicfh_done; | |
2695 } | |
2696 } | |
2697 | |
5331 | 2698 if (VOP_REALVP(*vpp, &realvp, NULL) == 0 && |
2699 realvp != *vpp) { | |
0 | 2700 /* |
2701 * If realvp is different from *vpp | |
2702 * then release our reference on *vpp, so that | |
2703 * the export access check be performed on the | |
2704 * real filesystem instead. | |
2705 */ | |
2706 VN_HOLD(realvp); | |
2707 VN_RELE(*vpp); | |
2708 *vpp = realvp; | |
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2709 } else { |
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2710 break; |
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2711 } |
0 | 2712 /* LINTED */ |
2713 } while (TRUE); | |
2714 | |
2715 /* | |
2716 * Let nfs_vptexi() figure what the real parent is. | |
2717 */ | |
2718 VN_RELE(mc_dvp); | |
2719 mc_dvp = NULL; | |
2720 | |
2721 } else { | |
2722 /* | |
2723 * If vnode is covered, get the | |
2724 * the topmost vnode. | |
2725 */ | |
2726 if (vn_mountedvfs(mc_dvp) != NULL) { | |
2727 error = traverse(&mc_dvp); | |
2728 if (error) { | |
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2729 VN_RELE(*vpp); |
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2730 goto publicfh_done; |
0 | 2731 } |
2732 } | |
2733 | |
5331 | 2734 if (VOP_REALVP(mc_dvp, &realvp, NULL) == 0 && |
2735 realvp != mc_dvp) { | |
0 | 2736 /* |
2737 * *vpp is a file, obtain realvp of the parent | |
2738 * directory vnode. | |
2739 */ | |
2740 VN_HOLD(realvp); | |
2741 VN_RELE(mc_dvp); | |
2742 mc_dvp = realvp; | |
2743 } | |
2744 } | |
2745 | |
2746 /* | |
2747 * The pathname may take us from the public filesystem to another. | |
2748 * If that's the case then just set the exportinfo to the new export | |
2749 * and build filehandle for it. Thanks to per-access checking there's | |
2750 * no security issues with doing this. If the client is not allowed | |
2751 * access to this new export then it will get an access error when it | |
2752 * tries to use the filehandle | |
2753 */ | |
2754 if (error = nfs_check_vpexi(mc_dvp, *vpp, kcred, exi)) { | |
2755 VN_RELE(*vpp); | |
2756 goto publicfh_done; | |
2757 } | |
2758 | |
2759 /* | |
2760 * Not allowed access to pseudo exports. | |
2761 */ | |
2762 if (PSEUDO(*exi)) { | |
2763 error = ENOENT; | |
2764 VN_RELE(*vpp); | |
2765 goto publicfh_done; | |
2766 } | |
2767 | |
2768 /* | |
2769 * Do a lookup for the index file. We know the index option doesn't | |
2770 * allow paths through handling in the share command, so mc_dvp will | |
2771 * be the parent for the index file vnode, if its present. Use | |
2772 * temporary pointers to preserve and reuse the vnode pointers of the | |
2773 * original directory in case there's no index file. Note that the | |
2774 * index file is a native path, and should not be interpreted by | |
2775 * the URL parser in rfs_pathname() | |
2776 */ | |
2777 if (((*exi)->exi_export.ex_flags & EX_INDEX) && | |
2778 ((*vpp)->v_type == VDIR) && (pathflag == URLPATH)) { | |
2779 vnode_t *tvp, *tmc_dvp; /* temporary vnode pointers */ | |
2780 | |
2781 tmc_dvp = mc_dvp; | |
2782 mc_dvp = tvp = *vpp; | |
2783 | |
2784 error = rfs_pathname((*exi)->exi_export.ex_index, NULL, vpp, | |
2785 mc_dvp, cr, NATIVEPATH); | |
2786 | |
2787 if (error == ENOENT) { | |
2788 *vpp = tvp; | |
2789 mc_dvp = tmc_dvp; | |
2790 error = 0; | |
2791 } else { /* ok or error other than ENOENT */ | |
2792 if (tmc_dvp) | |
2793 VN_RELE(tmc_dvp); | |
2794 if (error) | |
2795 goto publicfh_done; | |
2796 | |
2797 /* | |
2798 * Found a valid vp for index "filename". Sanity check | |
2799 * for odd case where a directory is provided as index | |
2800 * option argument and leads us to another filesystem | |
2801 */ | |
2802 | |
2803 /* Release the reference on the old exi value */ | |
2804 ASSERT(*exi != NULL); | |
2805 exi_rele(*exi); | |
2806 | |
2807 if (error = nfs_check_vpexi(mc_dvp, *vpp, kcred, exi)) { | |
2808 VN_RELE(*vpp); | |
2809 goto publicfh_done; | |
2810 } | |
2811 } | |
2812 } | |
2813 | |
2814 publicfh_done: | |
2815 if (mc_dvp) | |
2816 VN_RELE(mc_dvp); | |
2817 | |
2818 return (error); | |
2819 } | |
2820 | |
2821 /* | |
2822 * Evaluate a multi-component path | |
2823 */ | |
2824 int | |
2825 rfs_pathname( | |
2826 char *path, /* pathname to evaluate */ | |
2827 vnode_t **dirvpp, /* ret for ptr to parent dir vnode */ | |
2828 vnode_t **compvpp, /* ret for ptr to component vnode */ | |
2829 vnode_t *startdvp, /* starting vnode */ | |
2830 cred_t *cr, /* user's credential */ | |
2831 int pathflag) /* flag to identify path, e.g. URL */ | |
2832 { | |
2833 char namebuf[TYPICALMAXPATHLEN]; | |
2834 struct pathname pn; | |
2835 int error; | |
2836 | |
2837 /* | |
2838 * If pathname starts with '/', then set startdvp to root. | |
2839 */ | |
2840 if (*path == '/') { | |
2841 while (*path == '/') | |
2842 path++; | |
2843 | |
2844 startdvp = rootdir; | |
2845 } | |
2846 | |
2847 error = pn_get_buf(path, UIO_SYSSPACE, &pn, namebuf, sizeof (namebuf)); | |
2848 if (error == 0) { | |
2849 /* | |
2850 * Call the URL parser for URL paths to modify the original | |
2851 * string to handle any '%' encoded characters that exist. | |
2852 * Done here to avoid an extra bcopy in the lookup. | |
2853 * We need to be careful about pathlen's. We know that | |
2854 * rfs_pathname() is called with a non-empty path. However, | |
2855 * it could be emptied due to the path simply being all /'s, | |
2856 * which is valid to proceed with the lookup, or due to the | |
2857 * URL parser finding an encoded null character at the | |
2858 * beginning of path which should not proceed with the lookup. | |
2859 */ | |
2860 if (pn.pn_pathlen != 0 && pathflag == URLPATH) { | |
2861 URLparse(pn.pn_path); | |
2862 if ((pn.pn_pathlen = strlen(pn.pn_path)) == 0) | |
2863 return (ENOENT); | |
2864 } | |
2865 VN_HOLD(startdvp); | |
2866 error = lookuppnvp(&pn, NULL, NO_FOLLOW, dirvpp, compvpp, | |
2867 rootdir, startdvp, cr); | |
2868 } | |
2869 if (error == ENAMETOOLONG) { | |
2870 /* | |
2871 * This thread used a pathname > TYPICALMAXPATHLEN bytes long. | |
2872 */ | |
2873 if (error = pn_get(path, UIO_SYSSPACE, &pn)) | |
2874 return (error); | |
2875 if (pn.pn_pathlen != 0 && pathflag == URLPATH) { | |
2876 URLparse(pn.pn_path); | |
2877 if ((pn.pn_pathlen = strlen(pn.pn_path)) == 0) { | |
2878 pn_free(&pn); | |
2879 return (ENOENT); | |
2880 } | |
2881 } | |
2882 VN_HOLD(startdvp); | |
2883 error = lookuppnvp(&pn, NULL, NO_FOLLOW, dirvpp, compvpp, | |
2884 rootdir, startdvp, cr); | |
2885 pn_free(&pn); | |
2886 } | |
2887 | |
2888 return (error); | |
2889 } | |
2890 | |
2891 /* | |
2892 * Adapt the multicomponent lookup path depending on the pathtype | |
2893 */ | |
2894 static int | |
2895 MCLpath(char **path) | |
2896 { | |
2897 unsigned char c = (unsigned char)**path; | |
2898 | |
2899 /* | |
2900 * If the MCL path is between 0x20 and 0x7E (graphic printable | |
2901 * character of the US-ASCII coded character set), its a URL path, | |
2902 * per RFC 1738. | |
2903 */ | |
2904 if (c >= 0x20 && c <= 0x7E) | |
2905 return (URLPATH); | |
2906 | |
2907 /* | |
2908 * If the first octet of the MCL path is not an ASCII character | |
2909 * then it must be interpreted as a tag value that describes the | |
2910 * format of the remaining octets of the MCL path. | |
2911 * | |
2912 * If the first octet of the MCL path is 0x81 it is a query | |
2913 * for the security info. | |
2914 */ | |
2915 switch (c) { | |
2916 case 0x80: /* native path, i.e. MCL via mount protocol */ | |
2917 (*path)++; | |
2918 return (NATIVEPATH); | |
2919 case 0x81: /* security query */ | |
2920 (*path)++; | |
2921 return (SECURITY_QUERY); | |
2922 default: | |
2923 return (-1); | |
2924 } | |
2925 } | |
2926 | |
2927 #define fromhex(c) ((c >= '0' && c <= '9') ? (c - '0') : \ | |
2928 ((c >= 'A' && c <= 'F') ? (c - 'A' + 10) :\ | |
2929 ((c >= 'a' && c <= 'f') ? (c - 'a' + 10) : 0))) | |
2930 | |
2931 /* | |
5331 | 2932 * The implementation of URLparse guarantees that the final string will |
0 | 2933 * fit in the original one. Replaces '%' occurrences followed by 2 characters |
2934 * with its corresponding hexadecimal character. | |
2935 */ | |
2936 static void | |
2937 URLparse(char *str) | |
2938 { | |
2939 char *p, *q; | |
2940 | |
2941 p = q = str; | |
2942 while (*p) { | |
2943 *q = *p; | |
2944 if (*p++ == '%') { | |
2945 if (*p) { | |
2946 *q = fromhex(*p) * 16; | |
2947 p++; | |
2948 if (*p) { | |
2949 *q += fromhex(*p); | |
2950 p++; | |
2951 } | |
2952 } | |
2953 } | |
2954 q++; | |
2955 } | |
2956 *q = '\0'; | |
2957 } | |
2958 | |
2959 | |
2960 /* | |
2961 * Get the export information for the lookup vnode, and verify its | |
2962 * useable. | |
2963 */ | |
2964 int | |
2965 nfs_check_vpexi(vnode_t *mc_dvp, vnode_t *vp, cred_t *cr, | |
2966 struct exportinfo **exi) | |
2967 { | |
2968 int walk; | |
2969 int error = 0; | |
2970 | |
2971 *exi = nfs_vptoexi(mc_dvp, vp, cr, &walk, NULL, FALSE); | |
2972 if (*exi == NULL) | |
2973 error = EACCES; | |
2974 else { | |
2975 /* | |
2976 * If nosub is set for this export then | |
2977 * a lookup relative to the public fh | |
2978 * must not terminate below the | |
2979 * exported directory. | |
2980 */ | |
2981 if ((*exi)->exi_export.ex_flags & EX_NOSUB && walk > 0) | |
2982 error = EACCES; | |
2983 } | |
2984 | |
2985 return (error); | |
2986 } | |
2035
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2987 |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2988 /* |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2989 * Do the main work of handling HA-NFSv4 Resource Group failover on |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2990 * Sun Cluster. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
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|
2991 * We need to detect whether any RG admin paths have been added or removed, |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
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|
2992 * and adjust resources accordingly. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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|
2993 * Currently we're using a very inefficient algorithm, ~ 2 * O(n**2). In |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2994 * order to scale, the list and array of paths need to be held in more |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
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|
2995 * suitable data structures. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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diff
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|
2996 */ |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2997 static void |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2998 hanfsv4_failover(void) |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
2999 { |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3000 int i, start_grace, numadded_paths = 0; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3001 char **added_paths = NULL; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3002 rfs4_dss_path_t *dss_path; |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3003 |
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|
3004 /* |
2390 | 3005 * Note: currently, rfs4_dss_pathlist cannot be NULL, since |
3006 * it will always include an entry for NFS4_DSS_VAR_DIR. If we | |
3007 * make the latter dynamically specified too, the following will | |
3008 * need to be adjusted. | |
3009 */ | |
3010 | |
3011 /* | |
2035
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3012 * First, look for removed paths: RGs that have been failed-over |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3013 * away from this node. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3014 * Walk the "currently-serving" rfs4_dss_pathlist and, for each |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3015 * path, check if it is on the "passed-in" rfs4_dss_newpaths array |
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3016 * from nfsd. If not, that RG path has been removed. |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3017 * |
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|
3018 * Note that nfsd has sorted rfs4_dss_newpaths for us, and removed |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3019 * any duplicates. |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3020 */ |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3021 dss_path = rfs4_dss_pathlist; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3022 do { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
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|
3023 int found = 0; |
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|
3024 char *path = dss_path->path; |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3025 |
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|
3026 /* used only for non-HA so may not be removed */ |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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3027 if (strcmp(path, NFS4_DSS_VAR_DIR) == 0) { |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3028 dss_path = dss_path->next; |
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|
3029 continue; |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3030 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3031 |
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|
3032 for (i = 0; i < rfs4_dss_numnewpaths; i++) { |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3033 int cmpret; |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3034 char *newpath = rfs4_dss_newpaths[i]; |
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PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3035 |
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|
3036 /* |
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|
3037 * Since nfsd has sorted rfs4_dss_newpaths for us, |
2390 | 3038 * once the return from strcmp is negative we know |
2035
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3039 * we've passed the point where "path" should be, |
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|
3040 * and can stop searching: "path" has been removed. |
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|
3041 */ |
2390 | 3042 cmpret = strcmp(path, newpath); |
2035
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|
3043 if (cmpret < 0) |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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|
3044 break; |
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|
3045 if (cmpret == 0) { |
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diff
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|
3046 found = 1; |
a29bc457bcb9
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diff
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|
3047 break; |
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|
3048 } |
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|
3049 } |
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|
3050 |
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|
3051 if (found == 0) { |
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|
3052 unsigned index = dss_path->index; |
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|
3053 rfs4_servinst_t *sip = dss_path->sip; |
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|
3054 rfs4_dss_path_t *path_next = dss_path->next; |
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|
3055 |
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|
3056 /* |
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|
3057 * This path has been removed. |
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|
3058 * We must clear out the servinst reference to |
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|
3059 * it, since it's now owned by another |
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|
3060 * node: we should not attempt to touch it. |
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|
3061 */ |
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|
3062 ASSERT(dss_path == sip->dss_paths[index]); |
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3063 sip->dss_paths[index] = NULL; |
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|
3064 |
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|
3065 /* remove from "currently-serving" list, and destroy */ |
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|
3066 remque(dss_path); |
2390 | 3067 /* allow for NUL */ |
3068 kmem_free(dss_path->path, strlen(dss_path->path) + 1); | |
2035
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3069 kmem_free(dss_path, sizeof (rfs4_dss_path_t)); |
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|
3070 |
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3071 dss_path = path_next; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3072 } else { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3073 /* path was found; not removed */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3074 dss_path = dss_path->next; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3075 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3076 } while (dss_path != rfs4_dss_pathlist); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3077 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3078 /* |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3079 * Now, look for added paths: RGs that have been failed-over |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3080 * to this node. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3081 * Walk the "passed-in" rfs4_dss_newpaths array from nfsd and, |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3082 * for each path, check if it is on the "currently-serving" |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3083 * rfs4_dss_pathlist. If not, that RG path has been added. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3084 * |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3085 * Note: we don't do duplicate detection here; nfsd does that for us. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3086 * |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3087 * Note: numadded_paths <= rfs4_dss_numnewpaths, which gives us |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3088 * an upper bound for the size needed for added_paths[numadded_paths]. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3089 */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3090 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3091 /* probably more space than we need, but guaranteed to be enough */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3092 if (rfs4_dss_numnewpaths > 0) { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3093 size_t sz = rfs4_dss_numnewpaths * sizeof (char *); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3094 added_paths = kmem_zalloc(sz, KM_SLEEP); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3095 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3096 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3097 /* walk the "passed-in" rfs4_dss_newpaths array from nfsd */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3098 for (i = 0; i < rfs4_dss_numnewpaths; i++) { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3099 int found = 0; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3100 char *newpath = rfs4_dss_newpaths[i]; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3101 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3102 dss_path = rfs4_dss_pathlist; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3103 do { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3104 char *path = dss_path->path; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3105 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3106 /* used only for non-HA */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3107 if (strcmp(path, NFS4_DSS_VAR_DIR) == 0) { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3108 dss_path = dss_path->next; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3109 continue; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3110 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3111 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3112 if (strncmp(path, newpath, strlen(path)) == 0) { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3113 found = 1; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3114 break; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3115 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3116 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3117 dss_path = dss_path->next; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3118 } while (dss_path != rfs4_dss_pathlist); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3119 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3120 if (found == 0) { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3121 added_paths[numadded_paths] = newpath; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3122 numadded_paths++; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3123 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3124 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3125 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3126 /* did we find any added paths? */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3127 if (numadded_paths > 0) { |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3128 /* create a new server instance, and start its grace period */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3129 start_grace = 1; |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3130 rfs4_servinst_create(start_grace, numadded_paths, added_paths); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3131 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3132 /* read in the stable storage state from these paths */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3133 rfs4_dss_readstate(numadded_paths, added_paths); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3134 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3135 /* |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3136 * Multiple failovers during a grace period will cause |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3137 * clients of the same resource group to be partitioned |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3138 * into different server instances, with different |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3139 * grace periods. Since clients of the same resource |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3140 * group must be subject to the same grace period, |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3141 * we need to reset all currently active grace periods. |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3142 */ |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3143 rfs4_grace_reset_all(); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3144 } |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3145 |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3146 if (rfs4_dss_numnewpaths > 0) |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3147 kmem_free(added_paths, rfs4_dss_numnewpaths * sizeof (char *)); |
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3148 } |
9871
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3149 |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3150 /* |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3151 * Used by NFSv3 and NFSv4 server to query label of |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3152 * a pathname component during lookup/access ops. |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3153 */ |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3154 ts_label_t * |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3155 nfs_getflabel(vnode_t *vp, struct exportinfo *exi) |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3156 { |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3157 zone_t *zone; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3158 ts_label_t *zone_label; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3159 char *path; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3160 |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3161 mutex_enter(&vp->v_lock); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3162 if (vp->v_path != NULL) { |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3163 zone = zone_find_by_any_path(vp->v_path, B_FALSE); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3164 mutex_exit(&vp->v_lock); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3165 } else { |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3166 /* |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3167 * v_path not cached. Fall back on pathname of exported |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3168 * file system as we rely on pathname from which we can |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3169 * derive a label. The exported file system portion of |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3170 * path is sufficient to obtain a label. |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3171 */ |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3172 path = exi->exi_export.ex_path; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3173 if (path == NULL) { |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3174 mutex_exit(&vp->v_lock); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3175 return (NULL); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3176 } |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3177 zone = zone_find_by_any_path(path, B_FALSE); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3178 mutex_exit(&vp->v_lock); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3179 } |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3180 /* |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3181 * Caller has verified that the file is either |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3182 * exported or visible. So if the path falls in |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3183 * global zone, admin_low is returned; otherwise |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3184 * the zone's label is returned. |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3185 */ |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3186 zone_label = zone->zone_slabel; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3187 label_hold(zone_label); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3188 zone_rele(zone); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3189 return (zone_label); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3190 } |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3191 |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3192 /* |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3193 * TX NFS routine used by NFSv3 and NFSv4 to do label check |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3194 * on client label and server's file object lable. |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3195 */ |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3196 boolean_t |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3197 do_rfs_label_check(bslabel_t *clabel, vnode_t *vp, int flag, |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3198 struct exportinfo *exi) |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3199 { |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3200 bslabel_t *slabel; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3201 ts_label_t *tslabel; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3202 boolean_t result; |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3203 |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3204 if ((tslabel = nfs_getflabel(vp, exi)) == NULL) { |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3205 return (B_FALSE); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3206 } |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3207 slabel = label2bslabel(tslabel); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3208 DTRACE_PROBE4(tx__rfs__log__info__labelcheck, char *, |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3209 "comparing server's file label(1) with client label(2) (vp(3))", |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3210 bslabel_t *, slabel, bslabel_t *, clabel, vnode_t *, vp); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3211 |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3212 if (flag == EQUALITY_CHECK) |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3213 result = blequal(clabel, slabel); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3214 else |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3215 result = bldominates(clabel, slabel); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3216 label_rele(tslabel); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3217 return (result); |
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3218 } |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3219 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3220 /* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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9987
diff
changeset
|
3221 * Callback function to return the loaned buffers. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3222 * Calls VOP_RETZCBUF() only after all uio_iov[] |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3223 * buffers are returned. nu_ref maintains the count. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3224 */ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3225 void |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3226 rfs_free_xuio(void *free_arg) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3227 { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3228 uint_t ref; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3229 nfs_xuio_t *nfsuiop = (nfs_xuio_t *)free_arg; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3230 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3231 ref = atomic_dec_uint_nv(&nfsuiop->nu_ref); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
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diff
changeset
|
3232 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3233 /* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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9987
diff
changeset
|
3234 * Call VOP_RETZCBUF() only when all the iov buffers |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3235 * are sent OTW. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3236 */ |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3237 if (ref != 0) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3238 return; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3239 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3240 if (((uio_t *)nfsuiop)->uio_extflg & UIO_XUIO) { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3241 (void) VOP_RETZCBUF(nfsuiop->nu_vp, (xuio_t *)free_arg, NULL, |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3242 NULL); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3243 VN_RELE(nfsuiop->nu_vp); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3244 } |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3245 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3246 kmem_cache_free(nfs_xuio_cache, free_arg); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3247 } |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3248 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3249 xuio_t * |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3250 rfs_setup_xuio(vnode_t *vp) |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3251 { |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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9987
diff
changeset
|
3252 nfs_xuio_t *nfsuiop; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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diff
changeset
|
3253 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
9987
diff
changeset
|
3254 nfsuiop = kmem_cache_alloc(nfs_xuio_cache, KM_SLEEP); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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diff
changeset
|
3255 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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9987
diff
changeset
|
3256 bzero(nfsuiop, sizeof (nfs_xuio_t)); |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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diff
changeset
|
3257 nfsuiop->nu_vp = vp; |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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diff
changeset
|
3258 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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diff
changeset
|
3259 /* |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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parents:
9987
diff
changeset
|
3260 * ref count set to 1. more may be added |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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diff
changeset
|
3261 * if multiple mblks refer to multiple iov's. |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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diff
changeset
|
3262 * This is done in uio_to_mblk(). |
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diff
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|
3263 */ |
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6873106 Need a mechanism to share buffers between fs modules
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|
3264 |
10d35fc3d7fd
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changeset
|
3265 nfsuiop->nu_ref = 1; |
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6873106 Need a mechanism to share buffers between fs modules
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|
3266 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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diff
changeset
|
3267 nfsuiop->nu_frtn.free_func = rfs_free_xuio; |
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|
3268 nfsuiop->nu_frtn.free_arg = (char *)nfsuiop; |
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|
3269 |
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|
3270 nfsuiop->nu_uio.xu_type = UIOTYPE_ZEROCOPY; |
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|
3271 |
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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|
3272 return (&nfsuiop->nu_uio); |
10d35fc3d7fd
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|
3273 } |
10d35fc3d7fd
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|
3274 |
10d35fc3d7fd
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|
3275 mblk_t * |
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|
3276 uio_to_mblk(uio_t *uiop) |
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|
3277 { |
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|
3278 struct iovec *iovp; |
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|
3279 int i; |
10d35fc3d7fd
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|
3280 mblk_t *mp, *mp1; |
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|
3281 nfs_xuio_t *nfsuiop = (nfs_xuio_t *)uiop; |
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|
3282 |
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|
3283 if (uiop->uio_iovcnt == 0) |
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|
3284 return (NULL); |
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|
3285 |
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|
3286 iovp = uiop->uio_iov; |
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|
3287 mp = mp1 = esballoca((uchar_t *)iovp->iov_base, iovp->iov_len, |
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3288 BPRI_MED, &nfsuiop->nu_frtn); |
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|
3289 ASSERT(mp != NULL); |
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6873106 Need a mechanism to share buffers between fs modules
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|
3290 |
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|
3291 mp->b_wptr += iovp->iov_len; |
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3292 mp->b_datap->db_type = M_DATA; |
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|
3293 |
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6873106 Need a mechanism to share buffers between fs modules
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|
3294 for (i = 1; i < uiop->uio_iovcnt; i++) { |
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|
3295 iovp = (uiop->uio_iov + i); |
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6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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|
3296 |
10d35fc3d7fd
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chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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|
3297 mp1->b_cont = esballoca( |
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chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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|
3298 (uchar_t *)iovp->iov_base, iovp->iov_len, BPRI_MED, |
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|
3299 &nfsuiop->nu_frtn); |
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chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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|
3300 |
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|
3301 mp1 = mp1->b_cont; |
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|
3302 ASSERT(mp1 != NULL); |
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3303 mp1->b_wptr += iovp->iov_len; |
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3304 mp1->b_datap->db_type = M_DATA; |
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|
3305 } |
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|
3306 |
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|
3307 nfsuiop->nu_ref = uiop->uio_iovcnt; |
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|
3308 |
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|
3309 return (mp); |
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|
3310 } |
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|
3311 |
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|
3312 void |
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|
3313 rfs_rndup_mblks(mblk_t *mp, uint_t len, int buf_loaned) |
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|
3314 { |
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|
3315 int i, rndup; |
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3316 int alloc_err = 0; |
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|
3317 mblk_t *rmp; |
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|
3318 |
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|
3319 rndup = BYTES_PER_XDR_UNIT - (len % BYTES_PER_XDR_UNIT); |
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|
3320 |
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|
3321 /* single mblk_t non copy-reduction case */ |
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|
3322 if (!buf_loaned) { |
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3323 mp->b_wptr += len; |
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|
3324 if (rndup != BYTES_PER_XDR_UNIT) { |
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|
3325 for (i = 0; i < rndup; i++) |
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|
3326 *mp->b_wptr++ = '\0'; |
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|
3327 } |
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|
3328 return; |
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|
3329 } |
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|
3330 |
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|
3331 /* no need for extra rndup */ |
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3332 if (rndup == BYTES_PER_XDR_UNIT) |
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3333 return; |
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|
3334 |
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3335 while (mp->b_cont) |
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3336 mp = mp->b_cont; |
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3337 |
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|
3338 /* |
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3339 * In case of copy-reduction mblks, the size of the mblks |
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3340 * are fixed and are of the size of the loaned buffers. |
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3341 * Allocate a roundup mblk and chain it to the data |
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3342 * buffers. This is sub-optimal, but not expected to |
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3343 * happen in regular common workloads. |
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3344 */ |
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3345 |
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3346 rmp = allocb_wait(rndup, BPRI_MED, STR_NOSIG, &alloc_err); |
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3347 ASSERT(rmp != NULL); |
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3348 ASSERT(alloc_err == 0); |
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3349 |
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|
3350 for (i = 0; i < rndup; i++) |
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|
3351 *rmp->b_wptr++ = '\0'; |
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|
3352 |
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|
3353 rmp->b_datap->db_type = M_DATA; |
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3354 mp->b_cont = rmp; |
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3355 } |