Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/nfs/nfs_server.c @ 14183:68927c785889 default tip
4099 SMF methods without absolute paths no longer work
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Dan McDonald <danmcd@nexenta.com>
| author | Jerry Jelinek <jerry.jelinek@joyent.com> |
|---|---|
| date | Fri, 06 Sep 2013 09:20:56 -0700 |
| parents | bcbb822da4dd |
| children |
| rev | line source |
|---|---|
| 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. |
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23 * Copyright (c) 2011 Bayard G. Bell. All rights reserved. |
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24 * Copyright (c) 2013 by Delphix. All rights reserved. |
| 0 | 25 */ |
| 26 | |
| 27 /* | |
| 28 * Copyright (c) 1983,1984,1985,1986,1987,1988,1989 AT&T. | |
| 29 * All rights reserved. | |
| 30 * Use is subject to license terms. | |
| 31 */ | |
| 32 | |
| 33 #include <sys/param.h> | |
| 34 #include <sys/types.h> | |
| 35 #include <sys/systm.h> | |
| 36 #include <sys/cred.h> | |
| 37 #include <sys/proc.h> | |
| 38 #include <sys/user.h> | |
| 39 #include <sys/buf.h> | |
| 40 #include <sys/vfs.h> | |
| 41 #include <sys/vnode.h> | |
| 42 #include <sys/pathname.h> | |
| 43 #include <sys/uio.h> | |
| 44 #include <sys/file.h> | |
| 45 #include <sys/stat.h> | |
| 46 #include <sys/errno.h> | |
| 47 #include <sys/socket.h> | |
| 48 #include <sys/sysmacros.h> | |
| 49 #include <sys/siginfo.h> | |
| 50 #include <sys/tiuser.h> | |
| 51 #include <sys/statvfs.h> | |
| 52 #include <sys/stream.h> | |
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53 #include <sys/strsun.h> |
| 0 | 54 #include <sys/strsubr.h> |
| 55 #include <sys/stropts.h> | |
| 56 #include <sys/timod.h> | |
| 57 #include <sys/t_kuser.h> | |
| 58 #include <sys/kmem.h> | |
| 59 #include <sys/kstat.h> | |
| 60 #include <sys/dirent.h> | |
| 61 #include <sys/cmn_err.h> | |
| 62 #include <sys/debug.h> | |
| 63 #include <sys/unistd.h> | |
| 64 #include <sys/vtrace.h> | |
| 65 #include <sys/mode.h> | |
| 66 #include <sys/acl.h> | |
| 67 #include <sys/sdt.h> | |
| 68 | |
| 69 #include <rpc/types.h> | |
| 70 #include <rpc/auth.h> | |
| 71 #include <rpc/auth_unix.h> | |
| 72 #include <rpc/auth_des.h> | |
| 73 #include <rpc/svc.h> | |
| 74 #include <rpc/xdr.h> | |
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75 #include <rpc/rpc_rdma.h> |
| 0 | 76 |
| 77 #include <nfs/nfs.h> | |
| 78 #include <nfs/export.h> | |
| 79 #include <nfs/nfssys.h> | |
| 80 #include <nfs/nfs_clnt.h> | |
| 81 #include <nfs/nfs_acl.h> | |
| 82 #include <nfs/nfs_log.h> | |
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83 #include <nfs/nfs_cmd.h> |
| 0 | 84 #include <nfs/lm.h> |
| 74 | 85 #include <nfs/nfs_dispatch.h> |
| 86 #include <nfs/nfs4_drc.h> | |
| 0 | 87 |
| 88 #include <sys/modctl.h> | |
| 89 #include <sys/cladm.h> | |
| 90 #include <sys/clconf.h> | |
| 91 | |
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92 #include <sys/tsol/label.h> |
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93 |
| 0 | 94 #define MAXHOST 32 |
| 95 const char *kinet_ntop6(uchar_t *, char *, size_t); | |
| 96 | |
| 97 /* | |
| 98 * Module linkage information. | |
| 99 */ | |
| 100 | |
| 101 static struct modlmisc modlmisc = { | |
| 102 &mod_miscops, "NFS server module" | |
| 103 }; | |
| 104 | |
| 105 static struct modlinkage modlinkage = { | |
| 106 MODREV_1, (void *)&modlmisc, NULL | |
| 107 }; | |
| 108 | |
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109 kmem_cache_t *nfs_xuio_cache; |
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110 int nfs_loaned_buffers = 0; |
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111 |
| 0 | 112 int |
| 113 _init(void) | |
| 114 { | |
| 115 int status; | |
| 116 | |
| 117 if ((status = nfs_srvinit()) != 0) { | |
| 118 cmn_err(CE_WARN, "_init: nfs_srvinit failed"); | |
| 119 return (status); | |
| 120 } | |
| 121 | |
| 122 status = mod_install((struct modlinkage *)&modlinkage); | |
| 123 if (status != 0) { | |
| 124 /* | |
| 125 * Could not load module, cleanup previous | |
| 126 * initialization work. | |
| 127 */ | |
| 128 nfs_srvfini(); | |
| 129 } | |
| 130 | |
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131 /* |
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132 * Initialise some placeholders for nfssys() calls. These have |
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133 * to be declared by the nfs module, since that handles nfssys() |
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134 * calls - also used by NFS clients - but are provided by this |
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135 * nfssrv module. These also then serve as confirmation to the |
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136 * relevant code in nfs that nfssrv has been loaded, as they're |
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137 * initially NULL. |
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138 */ |
| 0 | 139 nfs_srv_quiesce_func = nfs_srv_quiesce_all; |
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140 nfs_srv_dss_func = rfs4_dss_setpaths; |
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141 |
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142 /* setup DSS paths here; must be done before initial server startup */ |
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143 rfs4_dss_paths = rfs4_dss_oldpaths = NULL; |
| 0 | 144 |
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145 /* initialize the copy reduction caches */ |
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146 |
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147 nfs_xuio_cache = kmem_cache_create("nfs_xuio_cache", |
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148 sizeof (nfs_xuio_t), 0, NULL, NULL, NULL, NULL, NULL, 0); |
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149 |
| 0 | 150 return (status); |
| 151 } | |
| 152 | |
| 153 int | |
| 154 _fini() | |
| 155 { | |
| 156 return (EBUSY); | |
| 157 } | |
| 158 | |
| 159 int | |
| 160 _info(struct modinfo *modinfop) | |
| 161 { | |
| 162 return (mod_info(&modlinkage, modinfop)); | |
| 163 } | |
| 164 | |
| 165 /* | |
| 166 * PUBLICFH_CHECK() checks if the dispatch routine supports | |
| 167 * RPC_PUBLICFH_OK, if the filesystem is exported public, and if the | |
| 168 * incoming request is using the public filehandle. The check duplicates | |
| 169 * the exportmatch() call done in checkexport(), and we should consider | |
| 170 * modifying those routines to avoid the duplication. For now, we optimize | |
| 171 * by calling exportmatch() only after checking that the dispatch routine | |
| 172 * supports RPC_PUBLICFH_OK, and if the filesystem is explicitly exported | |
| 173 * public (i.e., not the placeholder). | |
| 174 */ | |
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175 #define PUBLICFH_CHECK(disp, exi, fsid, xfid) \ |
| 0 | 176 ((disp->dis_flags & RPC_PUBLICFH_OK) && \ |
| 177 ((exi->exi_export.ex_flags & EX_PUBLIC) || \ | |
| 178 (exi == exi_public && exportmatch(exi_root, \ | |
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179 fsid, xfid)))) |
| 0 | 180 |
| 181 static void nfs_srv_shutdown_all(int); | |
| 182 static void rfs4_server_start(int); | |
| 183 static void nullfree(void); | |
| 184 static void rfs_dispatch(struct svc_req *, SVCXPRT *); | |
| 185 static void acl_dispatch(struct svc_req *, SVCXPRT *); | |
| 186 static void common_dispatch(struct svc_req *, SVCXPRT *, | |
| 187 rpcvers_t, rpcvers_t, char *, | |
| 188 struct rpc_disptable *); | |
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189 static void hanfsv4_failover(void); |
| 0 | 190 static int checkauth(struct exportinfo *, struct svc_req *, cred_t *, int, |
| 191 bool_t); | |
| 192 static char *client_name(struct svc_req *req); | |
| 193 static char *client_addr(struct svc_req *req, char *buf); | |
| 194 extern int sec_svc_getcred(struct svc_req *, cred_t *cr, char **, int *); | |
| 195 extern bool_t sec_svc_inrootlist(int, caddr_t, int, caddr_t *); | |
| 196 | |
| 197 #define NFSLOG_COPY_NETBUF(exi, xprt, nb) { \ | |
| 198 (nb)->maxlen = (xprt)->xp_rtaddr.maxlen; \ | |
| 199 (nb)->len = (xprt)->xp_rtaddr.len; \ | |
| 200 (nb)->buf = kmem_alloc((nb)->len, KM_SLEEP); \ | |
| 201 bcopy((xprt)->xp_rtaddr.buf, (nb)->buf, (nb)->len); \ | |
| 202 } | |
| 203 | |
| 204 /* | |
| 205 * Public Filehandle common nfs routines | |
| 206 */ | |
| 207 static int MCLpath(char **); | |
| 208 static void URLparse(char *); | |
| 209 | |
| 210 /* | |
| 211 * NFS callout table. | |
| 212 * This table is used by svc_getreq() to dispatch a request with | |
| 213 * a given prog/vers pair to an appropriate service provider | |
| 214 * dispatch routine. | |
| 215 * | |
| 216 * NOTE: ordering is relied upon below when resetting the version min/max | |
| 217 * for NFS_PROGRAM. Careful, if this is ever changed. | |
| 218 */ | |
| 219 static SVC_CALLOUT __nfs_sc_clts[] = { | |
| 220 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
| 221 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
| 222 }; | |
| 223 | |
| 224 static SVC_CALLOUT_TABLE nfs_sct_clts = { | |
| 225 sizeof (__nfs_sc_clts) / sizeof (__nfs_sc_clts[0]), FALSE, | |
| 226 __nfs_sc_clts | |
| 227 }; | |
| 228 | |
| 229 static SVC_CALLOUT __nfs_sc_cots[] = { | |
| 230 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
| 231 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
| 232 }; | |
| 233 | |
| 234 static SVC_CALLOUT_TABLE nfs_sct_cots = { | |
| 235 sizeof (__nfs_sc_cots) / sizeof (__nfs_sc_cots[0]), FALSE, __nfs_sc_cots | |
| 236 }; | |
| 237 | |
| 238 static SVC_CALLOUT __nfs_sc_rdma[] = { | |
| 239 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
| 240 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
| 241 }; | |
| 242 | |
| 243 static SVC_CALLOUT_TABLE nfs_sct_rdma = { | |
| 244 sizeof (__nfs_sc_rdma) / sizeof (__nfs_sc_rdma[0]), FALSE, __nfs_sc_rdma | |
| 245 }; | |
| 246 rpcvers_t nfs_versmin = NFS_VERSMIN_DEFAULT; | |
| 247 rpcvers_t nfs_versmax = NFS_VERSMAX_DEFAULT; | |
| 248 | |
| 249 /* | |
| 250 * Used to track the state of the server so that initialization | |
| 251 * can be done properly. | |
| 252 */ | |
| 253 typedef enum { | |
| 254 NFS_SERVER_STOPPED, /* server state destroyed */ | |
| 255 NFS_SERVER_STOPPING, /* server state being destroyed */ | |
| 256 NFS_SERVER_RUNNING, | |
| 257 NFS_SERVER_QUIESCED, /* server state preserved */ | |
| 258 NFS_SERVER_OFFLINE /* server pool offline */ | |
| 259 } nfs_server_running_t; | |
| 260 | |
| 261 static nfs_server_running_t nfs_server_upordown; | |
| 262 static kmutex_t nfs_server_upordown_lock; | |
| 263 static kcondvar_t nfs_server_upordown_cv; | |
| 264 | |
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265 /* |
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266 * DSS: distributed stable storage |
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267 * lists of all DSS paths: current, and before last warmstart |
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268 */ |
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269 nvlist_t *rfs4_dss_paths, *rfs4_dss_oldpaths; |
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270 |
| 74 | 271 int rfs4_dispatch(struct rpcdisp *, struct svc_req *, SVCXPRT *, char *); |
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272 bool_t rfs4_minorvers_mismatch(struct svc_req *, SVCXPRT *, void *); |
| 74 | 273 |
| 0 | 274 /* |
| 275 * RDMA wait variables. | |
| 276 */ | |
| 277 static kcondvar_t rdma_wait_cv; | |
| 278 static kmutex_t rdma_wait_mutex; | |
| 279 | |
| 280 /* | |
| 281 * Will be called at the point the server pool is being unregistered | |
| 282 * from the pool list. From that point onwards, the pool is waiting | |
| 283 * to be drained and as such the server state is stale and pertains | |
| 284 * to the old instantiation of the NFS server pool. | |
| 285 */ | |
| 286 void | |
| 287 nfs_srv_offline(void) | |
| 288 { | |
| 289 mutex_enter(&nfs_server_upordown_lock); | |
| 290 if (nfs_server_upordown == NFS_SERVER_RUNNING) { | |
| 291 nfs_server_upordown = NFS_SERVER_OFFLINE; | |
| 292 } | |
| 293 mutex_exit(&nfs_server_upordown_lock); | |
| 294 } | |
| 295 | |
| 296 /* | |
| 297 * Will be called at the point the server pool is being destroyed so | |
| 298 * all transports have been closed and no service threads are in | |
| 299 * existence. | |
| 300 * | |
| 301 * If we quiesce the server, we're shutting it down without destroying the | |
| 302 * server state. This allows it to warm start subsequently. | |
| 303 */ | |
| 304 void | |
| 305 nfs_srv_stop_all(void) | |
| 306 { | |
| 307 int quiesce = 0; | |
| 308 nfs_srv_shutdown_all(quiesce); | |
| 309 } | |
| 310 | |
| 311 /* | |
| 312 * This alternative shutdown routine can be requested via nfssys() | |
| 313 */ | |
| 314 void | |
| 315 nfs_srv_quiesce_all(void) | |
| 316 { | |
| 317 int quiesce = 1; | |
| 318 nfs_srv_shutdown_all(quiesce); | |
| 319 } | |
| 320 | |
| 321 static void | |
| 322 nfs_srv_shutdown_all(int quiesce) { | |
| 323 mutex_enter(&nfs_server_upordown_lock); | |
| 324 if (quiesce) { | |
| 325 if (nfs_server_upordown == NFS_SERVER_RUNNING || | |
| 326 nfs_server_upordown == NFS_SERVER_OFFLINE) { | |
| 327 nfs_server_upordown = NFS_SERVER_QUIESCED; | |
| 328 cv_signal(&nfs_server_upordown_cv); | |
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329 |
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330 /* reset DSS state, for subsequent warm restart */ |
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331 rfs4_dss_numnewpaths = 0; |
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332 rfs4_dss_newpaths = NULL; |
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333 |
| 0 | 334 cmn_err(CE_NOTE, "nfs_server: server is now quiesced; " |
| 335 "NFSv4 state has been preserved"); | |
| 336 } | |
| 337 } else { | |
| 338 if (nfs_server_upordown == NFS_SERVER_OFFLINE) { | |
| 339 nfs_server_upordown = NFS_SERVER_STOPPING; | |
| 340 mutex_exit(&nfs_server_upordown_lock); | |
| 341 rfs4_state_fini(); | |
| 74 | 342 rfs4_fini_drc(nfs4_drc); |
| 0 | 343 mutex_enter(&nfs_server_upordown_lock); |
| 344 nfs_server_upordown = NFS_SERVER_STOPPED; | |
| 345 cv_signal(&nfs_server_upordown_cv); | |
| 346 } | |
| 347 } | |
| 348 mutex_exit(&nfs_server_upordown_lock); | |
| 349 } | |
| 350 | |
| 351 static int | |
| 352 nfs_srv_set_sc_versions(struct file *fp, SVC_CALLOUT_TABLE **sctpp, | |
| 353 rpcvers_t versmin, rpcvers_t versmax) | |
| 354 { | |
| 355 struct strioctl strioc; | |
| 356 struct T_info_ack tinfo; | |
| 357 int error, retval; | |
| 358 | |
| 359 /* | |
| 360 * Find out what type of transport this is. | |
| 361 */ | |
| 362 strioc.ic_cmd = TI_GETINFO; | |
| 363 strioc.ic_timout = -1; | |
| 364 strioc.ic_len = sizeof (tinfo); | |
| 365 strioc.ic_dp = (char *)&tinfo; | |
| 366 tinfo.PRIM_type = T_INFO_REQ; | |
| 367 | |
| 368 error = strioctl(fp->f_vnode, I_STR, (intptr_t)&strioc, 0, K_TO_K, | |
| 369 CRED(), &retval); | |
| 370 if (error || retval) | |
| 371 return (error); | |
| 372 | |
| 373 /* | |
| 374 * Based on our query of the transport type... | |
| 375 * | |
| 376 * Reset the min/max versions based on the caller's request | |
| 377 * NOTE: This assumes that NFS_PROGRAM is first in the array!! | |
| 378 * And the second entry is the NFS_ACL_PROGRAM. | |
| 379 */ | |
| 380 switch (tinfo.SERV_type) { | |
| 381 case T_CLTS: | |
| 382 if (versmax == NFS_V4) | |
| 383 return (EINVAL); | |
| 384 __nfs_sc_clts[0].sc_versmin = versmin; | |
| 385 __nfs_sc_clts[0].sc_versmax = versmax; | |
| 386 __nfs_sc_clts[1].sc_versmin = versmin; | |
| 387 __nfs_sc_clts[1].sc_versmax = versmax; | |
| 388 *sctpp = &nfs_sct_clts; | |
| 389 break; | |
| 390 case T_COTS: | |
| 391 case T_COTS_ORD: | |
| 392 __nfs_sc_cots[0].sc_versmin = versmin; | |
| 393 __nfs_sc_cots[0].sc_versmax = versmax; | |
| 394 /* For the NFS_ACL program, check the max version */ | |
| 395 if (versmax > NFS_ACL_VERSMAX) | |
| 396 versmax = NFS_ACL_VERSMAX; | |
| 397 __nfs_sc_cots[1].sc_versmin = versmin; | |
| 398 __nfs_sc_cots[1].sc_versmax = versmax; | |
| 399 *sctpp = &nfs_sct_cots; | |
| 400 break; | |
| 401 default: | |
| 402 error = EINVAL; | |
| 403 } | |
| 404 | |
| 405 return (error); | |
| 406 } | |
| 407 | |
| 408 /* | |
| 409 * NFS Server system call. | |
| 410 * Does all of the work of running a NFS server. | |
| 411 * uap->fd is the fd of an open transport provider | |
| 412 */ | |
| 413 int | |
| 414 nfs_svc(struct nfs_svc_args *arg, model_t model) | |
| 415 { | |
| 416 file_t *fp; | |
| 417 SVCMASTERXPRT *xprt; | |
| 418 int error; | |
| 419 int readsize; | |
| 420 char buf[KNC_STRSIZE]; | |
| 421 size_t len; | |
| 422 STRUCT_HANDLE(nfs_svc_args, uap); | |
| 423 struct netbuf addrmask; | |
| 424 SVC_CALLOUT_TABLE *sctp = NULL; | |
| 425 | |
| 426 #ifdef lint | |
| 427 model = model; /* STRUCT macros don't always refer to it */ | |
| 428 #endif | |
| 429 | |
| 430 STRUCT_SET_HANDLE(uap, model, arg); | |
| 431 | |
| 432 /* Check privileges in nfssys() */ | |
| 433 | |
| 434 if ((fp = getf(STRUCT_FGET(uap, fd))) == NULL) | |
| 435 return (EBADF); | |
| 436 | |
| 437 /* | |
| 438 * Set read buffer size to rsize | |
| 439 * and add room for RPC headers. | |
| 440 */ | |
| 441 readsize = nfs3tsize() + (RPC_MAXDATASIZE - NFS_MAXDATA); | |
| 442 if (readsize < RPC_MAXDATASIZE) | |
| 443 readsize = RPC_MAXDATASIZE; | |
| 444 | |
| 445 error = copyinstr((const char *)STRUCT_FGETP(uap, netid), buf, | |
| 446 KNC_STRSIZE, &len); | |
| 447 if (error) { | |
| 448 releasef(STRUCT_FGET(uap, fd)); | |
| 449 return (error); | |
| 450 } | |
| 451 | |
| 452 addrmask.len = STRUCT_FGET(uap, addrmask.len); | |
| 453 addrmask.maxlen = STRUCT_FGET(uap, addrmask.maxlen); | |
| 454 addrmask.buf = kmem_alloc(addrmask.maxlen, KM_SLEEP); | |
| 455 error = copyin(STRUCT_FGETP(uap, addrmask.buf), addrmask.buf, | |
| 456 addrmask.len); | |
| 457 if (error) { | |
| 458 releasef(STRUCT_FGET(uap, fd)); | |
| 459 kmem_free(addrmask.buf, addrmask.maxlen); | |
| 460 return (error); | |
| 461 } | |
| 462 | |
| 463 nfs_versmin = STRUCT_FGET(uap, versmin); | |
| 464 nfs_versmax = STRUCT_FGET(uap, versmax); | |
| 465 | |
| 466 /* Double check the vers min/max ranges */ | |
| 467 if ((nfs_versmin > nfs_versmax) || | |
|
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468 (nfs_versmin < NFS_VERSMIN) || |
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469 (nfs_versmax > NFS_VERSMAX)) { |
| 0 | 470 nfs_versmin = NFS_VERSMIN_DEFAULT; |
| 471 nfs_versmax = NFS_VERSMAX_DEFAULT; | |
| 472 } | |
| 473 | |
| 474 if (error = | |
| 475 nfs_srv_set_sc_versions(fp, &sctp, nfs_versmin, nfs_versmax)) { | |
| 476 releasef(STRUCT_FGET(uap, fd)); | |
| 477 kmem_free(addrmask.buf, addrmask.maxlen); | |
| 478 return (error); | |
| 479 } | |
| 480 | |
| 481 /* Initialize nfsv4 server */ | |
| 482 if (nfs_versmax == (rpcvers_t)NFS_V4) | |
| 483 rfs4_server_start(STRUCT_FGET(uap, delegation)); | |
| 484 | |
| 485 /* Create a transport handle. */ | |
| 486 error = svc_tli_kcreate(fp, readsize, buf, &addrmask, &xprt, | |
|
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487 sctp, NULL, NFS_SVCPOOL_ID, TRUE); |
| 0 | 488 |
| 489 if (error) | |
| 490 kmem_free(addrmask.buf, addrmask.maxlen); | |
| 491 | |
| 492 releasef(STRUCT_FGET(uap, fd)); | |
| 493 | |
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494 /* HA-NFSv4: save the cluster nodeid */ |
| 0 | 495 if (cluster_bootflags & CLUSTER_BOOTED) |
| 496 lm_global_nlmid = clconf_get_nodeid(); | |
| 497 | |
| 498 return (error); | |
| 499 } | |
| 500 | |
| 501 static void | |
| 502 rfs4_server_start(int nfs4_srv_delegation) | |
| 503 { | |
| 504 /* | |
| 505 * Determine if the server has previously been "started" and | |
| 506 * if not, do the per instance initialization | |
| 507 */ | |
| 508 mutex_enter(&nfs_server_upordown_lock); | |
| 509 | |
| 510 if (nfs_server_upordown != NFS_SERVER_RUNNING) { | |
| 511 /* Do we need to stop and wait on the previous server? */ | |
| 512 while (nfs_server_upordown == NFS_SERVER_STOPPING || | |
|
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513 nfs_server_upordown == NFS_SERVER_OFFLINE) |
| 0 | 514 cv_wait(&nfs_server_upordown_cv, |
| 515 &nfs_server_upordown_lock); | |
| 516 | |
| 517 if (nfs_server_upordown != NFS_SERVER_RUNNING) { | |
| 518 (void) svc_pool_control(NFS_SVCPOOL_ID, | |
| 519 SVCPSET_UNREGISTER_PROC, (void *)&nfs_srv_offline); | |
| 520 (void) svc_pool_control(NFS_SVCPOOL_ID, | |
| 521 SVCPSET_SHUTDOWN_PROC, (void *)&nfs_srv_stop_all); | |
| 522 | |
| 523 /* is this an nfsd warm start? */ | |
| 524 if (nfs_server_upordown == NFS_SERVER_QUIESCED) { | |
| 525 cmn_err(CE_NOTE, "nfs_server: " | |
| 526 "server was previously quiesced; " | |
| 527 "existing NFSv4 state will be re-used"); | |
| 528 | |
| 529 /* | |
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530 * HA-NFSv4: this is also the signal |
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531 * that a Resource Group failover has |
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532 * occurred. |
| 0 | 533 */ |
| 2390 | 534 if (cluster_bootflags & CLUSTER_BOOTED) |
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535 hanfsv4_failover(); |
| 0 | 536 } else { |
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537 /* cold start */ |
| 0 | 538 rfs4_state_init(); |
| 74 | 539 nfs4_drc = rfs4_init_drc(nfs4_drc_max, |
|
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540 nfs4_drc_hash); |
| 0 | 541 } |
| 542 | |
| 543 /* | |
| 544 * Check to see if delegation is to be | |
| 545 * enabled at the server | |
| 546 */ | |
| 547 if (nfs4_srv_delegation != FALSE) | |
| 548 rfs4_set_deleg_policy(SRV_NORMAL_DELEGATE); | |
| 549 | |
| 550 nfs_server_upordown = NFS_SERVER_RUNNING; | |
| 551 } | |
| 552 cv_signal(&nfs_server_upordown_cv); | |
| 553 } | |
| 554 mutex_exit(&nfs_server_upordown_lock); | |
| 555 } | |
| 556 | |
| 557 /* | |
| 558 * If RDMA device available, | |
| 559 * start RDMA listener. | |
| 560 */ | |
| 561 int | |
| 562 rdma_start(struct rdma_svc_args *rsa) | |
| 563 { | |
| 564 int error; | |
| 565 rdma_xprt_group_t started_rdma_xprts; | |
|
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566 rdma_stat stat; |
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567 int svc_state = 0; |
| 0 | 568 |
| 569 /* Double check the vers min/max ranges */ | |
| 570 if ((rsa->nfs_versmin > rsa->nfs_versmax) || | |
|
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571 (rsa->nfs_versmin < NFS_VERSMIN) || |
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572 (rsa->nfs_versmax > NFS_VERSMAX)) { |
| 0 | 573 rsa->nfs_versmin = NFS_VERSMIN_DEFAULT; |
| 574 rsa->nfs_versmax = NFS_VERSMAX_DEFAULT; | |
| 575 } | |
| 576 nfs_versmin = rsa->nfs_versmin; | |
| 577 nfs_versmax = rsa->nfs_versmax; | |
| 578 | |
| 579 /* Set the versions in the callout table */ | |
| 580 __nfs_sc_rdma[0].sc_versmin = rsa->nfs_versmin; | |
| 581 __nfs_sc_rdma[0].sc_versmax = rsa->nfs_versmax; | |
| 582 /* For the NFS_ACL program, check the max version */ | |
| 583 __nfs_sc_rdma[1].sc_versmin = rsa->nfs_versmin; | |
| 584 if (rsa->nfs_versmax > NFS_ACL_VERSMAX) | |
| 585 __nfs_sc_rdma[1].sc_versmax = NFS_ACL_VERSMAX; | |
| 586 else | |
| 587 __nfs_sc_rdma[1].sc_versmax = rsa->nfs_versmax; | |
| 588 | |
| 589 /* Initialize nfsv4 server */ | |
| 590 if (rsa->nfs_versmax == (rpcvers_t)NFS_V4) | |
| 591 rfs4_server_start(rsa->delegation); | |
| 592 | |
| 593 started_rdma_xprts.rtg_count = 0; | |
| 594 started_rdma_xprts.rtg_listhead = NULL; | |
| 595 started_rdma_xprts.rtg_poolid = rsa->poolid; | |
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596 |
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597 restart: |
| 0 | 598 error = svc_rdma_kcreate(rsa->netid, &nfs_sct_rdma, rsa->poolid, |
| 599 &started_rdma_xprts); | |
| 600 | |
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601 svc_state = !error; |
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602 |
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603 while (!error) { |
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604 |
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605 /* |
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606 * wait till either interrupted by a signal on |
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607 * nfs service stop/restart or signalled by a |
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608 * rdma plugin attach/detatch. |
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609 */ |
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610 |
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611 stat = rdma_kwait(); |
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612 |
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613 /* |
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614 * stop services if running -- either on a HCA detach event |
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615 * or if the nfs service is stopped/restarted. |
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616 */ |
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617 |
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618 if ((stat == RDMA_HCA_DETACH || stat == RDMA_INTR) && |
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619 svc_state) { |
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620 rdma_stop(&started_rdma_xprts); |
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621 svc_state = 0; |
| 0 | 622 } |
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623 |
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624 /* |
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625 * nfs service stop/restart, break out of the |
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626 * wait loop and return; |
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627 */ |
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628 if (stat == RDMA_INTR) |
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629 return (0); |
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630 |
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631 /* |
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632 * restart stopped services on a HCA attach event |
|
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|
633 * (if not already running) |
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634 */ |
|
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635 |
|
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636 if ((stat == RDMA_HCA_ATTACH) && (svc_state == 0)) |
|
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637 goto restart; |
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638 |
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639 /* |
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640 * loop until a nfs service stop/restart |
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|
641 */ |
| 0 | 642 } |
| 643 | |
| 644 return (error); | |
| 645 } | |
| 646 | |
| 647 /* ARGSUSED */ | |
| 74 | 648 void |
| 0 | 649 rpc_null(caddr_t *argp, caddr_t *resp) |
| 650 { | |
| 651 } | |
| 652 | |
| 653 /* ARGSUSED */ | |
| 5982 | 654 void |
| 655 rpc_null_v3(caddr_t *argp, caddr_t *resp, struct exportinfo *exi, | |
| 656 struct svc_req *req, cred_t *cr) | |
| 657 { | |
| 658 DTRACE_NFSV3_3(op__null__start, struct svc_req *, req, | |
| 659 cred_t *, cr, vnode_t *, NULL); | |
| 660 DTRACE_NFSV3_3(op__null__done, struct svc_req *, req, | |
| 661 cred_t *, cr, vnode_t *, NULL); | |
| 662 } | |
| 663 | |
| 664 /* ARGSUSED */ | |
| 0 | 665 static void |
| 666 rfs_error(caddr_t *argp, caddr_t *resp) | |
| 667 { | |
| 668 /* return (EOPNOTSUPP); */ | |
| 669 } | |
| 670 | |
| 671 static void | |
| 672 nullfree(void) | |
| 673 { | |
| 674 } | |
| 675 | |
| 676 static char *rfscallnames_v2[] = { | |
| 677 "RFS2_NULL", | |
| 678 "RFS2_GETATTR", | |
| 679 "RFS2_SETATTR", | |
| 680 "RFS2_ROOT", | |
| 681 "RFS2_LOOKUP", | |
| 682 "RFS2_READLINK", | |
| 683 "RFS2_READ", | |
| 684 "RFS2_WRITECACHE", | |
| 685 "RFS2_WRITE", | |
| 686 "RFS2_CREATE", | |
| 687 "RFS2_REMOVE", | |
| 688 "RFS2_RENAME", | |
| 689 "RFS2_LINK", | |
| 690 "RFS2_SYMLINK", | |
| 691 "RFS2_MKDIR", | |
| 692 "RFS2_RMDIR", | |
| 693 "RFS2_READDIR", | |
| 694 "RFS2_STATFS" | |
| 695 }; | |
| 696 | |
| 697 static struct rpcdisp rfsdisptab_v2[] = { | |
| 698 /* | |
| 699 * NFS VERSION 2 | |
| 700 */ | |
| 701 | |
| 702 /* RFS_NULL = 0 */ | |
| 703 {rpc_null, | |
| 704 xdr_void, NULL_xdrproc_t, 0, | |
| 705 xdr_void, NULL_xdrproc_t, 0, | |
| 706 nullfree, RPC_IDEMPOTENT, | |
| 74 | 707 0}, |
| 0 | 708 |
| 709 /* RFS_GETATTR = 1 */ | |
| 710 {rfs_getattr, | |
| 711 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
| 712 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
| 713 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
| 74 | 714 rfs_getattr_getfh}, |
| 0 | 715 |
| 716 /* RFS_SETATTR = 2 */ | |
| 717 {rfs_setattr, | |
| 718 xdr_saargs, NULL_xdrproc_t, sizeof (struct nfssaargs), | |
| 719 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
| 720 nullfree, RPC_MAPRESP, | |
| 74 | 721 rfs_setattr_getfh}, |
| 0 | 722 |
| 723 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
| 724 {rfs_error, | |
| 725 xdr_void, NULL_xdrproc_t, 0, | |
| 726 xdr_void, NULL_xdrproc_t, 0, | |
| 727 nullfree, RPC_IDEMPOTENT, | |
| 74 | 728 0}, |
| 0 | 729 |
| 730 /* RFS_LOOKUP = 4 */ | |
| 731 {rfs_lookup, | |
| 732 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
| 733 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
| 734 nullfree, RPC_IDEMPOTENT|RPC_MAPRESP|RPC_PUBLICFH_OK, | |
| 74 | 735 rfs_lookup_getfh}, |
| 0 | 736 |
| 737 /* RFS_READLINK = 5 */ | |
| 738 {rfs_readlink, | |
| 739 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
| 740 xdr_rdlnres, NULL_xdrproc_t, sizeof (struct nfsrdlnres), | |
| 741 rfs_rlfree, RPC_IDEMPOTENT, | |
| 74 | 742 rfs_readlink_getfh}, |
| 0 | 743 |
| 744 /* RFS_READ = 6 */ | |
| 745 {rfs_read, | |
| 746 xdr_readargs, NULL_xdrproc_t, sizeof (struct nfsreadargs), | |
| 747 xdr_rdresult, NULL_xdrproc_t, sizeof (struct nfsrdresult), | |
| 748 rfs_rdfree, RPC_IDEMPOTENT, | |
| 74 | 749 rfs_read_getfh}, |
| 0 | 750 |
| 751 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
| 752 {rfs_error, | |
| 753 xdr_void, NULL_xdrproc_t, 0, | |
| 754 xdr_void, NULL_xdrproc_t, 0, | |
| 755 nullfree, RPC_IDEMPOTENT, | |
| 74 | 756 0}, |
| 0 | 757 |
| 758 /* RFS_WRITE = 8 */ | |
| 759 {rfs_write, | |
| 760 xdr_writeargs, NULL_xdrproc_t, sizeof (struct nfswriteargs), | |
| 761 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
| 762 nullfree, RPC_MAPRESP, | |
| 74 | 763 rfs_write_getfh}, |
| 0 | 764 |
| 765 /* RFS_CREATE = 9 */ | |
| 766 {rfs_create, | |
| 767 xdr_creatargs, NULL_xdrproc_t, sizeof (struct nfscreatargs), | |
| 768 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
| 769 nullfree, RPC_MAPRESP, | |
| 74 | 770 rfs_create_getfh}, |
| 0 | 771 |
| 772 /* RFS_REMOVE = 10 */ | |
| 773 {rfs_remove, | |
| 774 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
| 775 #ifdef _LITTLE_ENDIAN | |
| 776 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 777 #else | |
| 778 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 779 #endif | |
| 780 nullfree, RPC_MAPRESP, | |
| 74 | 781 rfs_remove_getfh}, |
| 0 | 782 |
| 783 /* RFS_RENAME = 11 */ | |
| 784 {rfs_rename, | |
| 785 xdr_rnmargs, NULL_xdrproc_t, sizeof (struct nfsrnmargs), | |
| 786 #ifdef _LITTLE_ENDIAN | |
| 787 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 788 #else | |
| 789 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 790 #endif | |
| 791 nullfree, RPC_MAPRESP, | |
| 74 | 792 rfs_rename_getfh}, |
| 0 | 793 |
| 794 /* RFS_LINK = 12 */ | |
| 795 {rfs_link, | |
| 796 xdr_linkargs, NULL_xdrproc_t, sizeof (struct nfslinkargs), | |
| 797 #ifdef _LITTLE_ENDIAN | |
| 798 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 799 #else | |
| 800 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 801 #endif | |
| 802 nullfree, RPC_MAPRESP, | |
| 74 | 803 rfs_link_getfh}, |
| 0 | 804 |
| 805 /* RFS_SYMLINK = 13 */ | |
| 806 {rfs_symlink, | |
| 807 xdr_slargs, NULL_xdrproc_t, sizeof (struct nfsslargs), | |
| 808 #ifdef _LITTLE_ENDIAN | |
| 809 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 810 #else | |
| 811 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 812 #endif | |
| 813 nullfree, RPC_MAPRESP, | |
| 74 | 814 rfs_symlink_getfh}, |
| 0 | 815 |
| 816 /* RFS_MKDIR = 14 */ | |
| 817 {rfs_mkdir, | |
| 818 xdr_creatargs, NULL_xdrproc_t, sizeof (struct nfscreatargs), | |
| 819 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
| 820 nullfree, RPC_MAPRESP, | |
| 74 | 821 rfs_mkdir_getfh}, |
| 0 | 822 |
| 823 /* RFS_RMDIR = 15 */ | |
| 824 {rfs_rmdir, | |
| 825 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
| 826 #ifdef _LITTLE_ENDIAN | |
| 827 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 828 #else | |
| 829 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 830 #endif | |
| 831 nullfree, RPC_MAPRESP, | |
| 74 | 832 rfs_rmdir_getfh}, |
| 0 | 833 |
| 834 /* RFS_READDIR = 16 */ | |
| 835 {rfs_readdir, | |
| 836 xdr_rddirargs, NULL_xdrproc_t, sizeof (struct nfsrddirargs), | |
| 837 xdr_putrddirres, NULL_xdrproc_t, sizeof (struct nfsrddirres), | |
| 838 rfs_rddirfree, RPC_IDEMPOTENT, | |
| 74 | 839 rfs_readdir_getfh}, |
| 0 | 840 |
| 841 /* RFS_STATFS = 17 */ | |
| 842 {rfs_statfs, | |
| 843 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
| 844 xdr_statfs, xdr_faststatfs, sizeof (struct nfsstatfs), | |
| 845 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
| 74 | 846 rfs_statfs_getfh}, |
| 0 | 847 }; |
| 848 | |
| 849 static char *rfscallnames_v3[] = { | |
| 850 "RFS3_NULL", | |
| 851 "RFS3_GETATTR", | |
| 852 "RFS3_SETATTR", | |
| 853 "RFS3_LOOKUP", | |
| 854 "RFS3_ACCESS", | |
| 855 "RFS3_READLINK", | |
| 856 "RFS3_READ", | |
| 857 "RFS3_WRITE", | |
| 858 "RFS3_CREATE", | |
| 859 "RFS3_MKDIR", | |
| 860 "RFS3_SYMLINK", | |
| 861 "RFS3_MKNOD", | |
| 862 "RFS3_REMOVE", | |
| 863 "RFS3_RMDIR", | |
| 864 "RFS3_RENAME", | |
| 865 "RFS3_LINK", | |
| 866 "RFS3_READDIR", | |
| 867 "RFS3_READDIRPLUS", | |
| 868 "RFS3_FSSTAT", | |
| 869 "RFS3_FSINFO", | |
| 870 "RFS3_PATHCONF", | |
| 871 "RFS3_COMMIT" | |
| 872 }; | |
| 873 | |
| 874 static struct rpcdisp rfsdisptab_v3[] = { | |
| 875 /* | |
| 876 * NFS VERSION 3 | |
| 877 */ | |
| 878 | |
| 879 /* RFS_NULL = 0 */ | |
| 5982 | 880 {rpc_null_v3, |
| 0 | 881 xdr_void, NULL_xdrproc_t, 0, |
| 882 xdr_void, NULL_xdrproc_t, 0, | |
| 883 nullfree, RPC_IDEMPOTENT, | |
| 74 | 884 0}, |
| 0 | 885 |
| 886 /* RFS3_GETATTR = 1 */ | |
| 887 {rfs3_getattr, | |
|
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888 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (GETATTR3args), |
| 0 | 889 xdr_GETATTR3res, NULL_xdrproc_t, sizeof (GETATTR3res), |
| 890 nullfree, (RPC_IDEMPOTENT | RPC_ALLOWANON), | |
| 74 | 891 rfs3_getattr_getfh}, |
| 0 | 892 |
| 893 /* RFS3_SETATTR = 2 */ | |
| 894 {rfs3_setattr, | |
| 895 xdr_SETATTR3args, NULL_xdrproc_t, sizeof (SETATTR3args), | |
| 896 xdr_SETATTR3res, NULL_xdrproc_t, sizeof (SETATTR3res), | |
| 897 nullfree, 0, | |
| 74 | 898 rfs3_setattr_getfh}, |
| 0 | 899 |
| 900 /* RFS3_LOOKUP = 3 */ | |
| 901 {rfs3_lookup, | |
| 902 xdr_diropargs3, NULL_xdrproc_t, sizeof (LOOKUP3args), | |
| 903 xdr_LOOKUP3res, NULL_xdrproc_t, sizeof (LOOKUP3res), | |
| 904 nullfree, (RPC_IDEMPOTENT | RPC_PUBLICFH_OK), | |
| 74 | 905 rfs3_lookup_getfh}, |
| 0 | 906 |
| 907 /* RFS3_ACCESS = 4 */ | |
| 908 {rfs3_access, | |
| 909 xdr_ACCESS3args, NULL_xdrproc_t, sizeof (ACCESS3args), | |
| 910 xdr_ACCESS3res, NULL_xdrproc_t, sizeof (ACCESS3res), | |
| 911 nullfree, RPC_IDEMPOTENT, | |
| 74 | 912 rfs3_access_getfh}, |
| 0 | 913 |
| 914 /* RFS3_READLINK = 5 */ | |
| 915 {rfs3_readlink, | |
|
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916 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (READLINK3args), |
| 0 | 917 xdr_READLINK3res, NULL_xdrproc_t, sizeof (READLINK3res), |
| 918 rfs3_readlink_free, RPC_IDEMPOTENT, | |
| 74 | 919 rfs3_readlink_getfh}, |
| 0 | 920 |
| 921 /* RFS3_READ = 6 */ | |
| 922 {rfs3_read, | |
| 923 xdr_READ3args, NULL_xdrproc_t, sizeof (READ3args), | |
| 924 xdr_READ3res, NULL_xdrproc_t, sizeof (READ3res), | |
| 925 rfs3_read_free, RPC_IDEMPOTENT, | |
| 74 | 926 rfs3_read_getfh}, |
| 0 | 927 |
| 928 /* RFS3_WRITE = 7 */ | |
| 929 {rfs3_write, | |
| 930 xdr_WRITE3args, NULL_xdrproc_t, sizeof (WRITE3args), | |
| 931 xdr_WRITE3res, NULL_xdrproc_t, sizeof (WRITE3res), | |
| 932 nullfree, 0, | |
| 74 | 933 rfs3_write_getfh}, |
| 0 | 934 |
| 935 /* RFS3_CREATE = 8 */ | |
| 936 {rfs3_create, | |
| 937 xdr_CREATE3args, NULL_xdrproc_t, sizeof (CREATE3args), | |
| 938 xdr_CREATE3res, NULL_xdrproc_t, sizeof (CREATE3res), | |
| 939 nullfree, 0, | |
| 74 | 940 rfs3_create_getfh}, |
| 0 | 941 |
| 942 /* RFS3_MKDIR = 9 */ | |
| 943 {rfs3_mkdir, | |
| 944 xdr_MKDIR3args, NULL_xdrproc_t, sizeof (MKDIR3args), | |
| 945 xdr_MKDIR3res, NULL_xdrproc_t, sizeof (MKDIR3res), | |
| 946 nullfree, 0, | |
| 74 | 947 rfs3_mkdir_getfh}, |
| 0 | 948 |
| 949 /* RFS3_SYMLINK = 10 */ | |
| 950 {rfs3_symlink, | |
| 951 xdr_SYMLINK3args, NULL_xdrproc_t, sizeof (SYMLINK3args), | |
| 952 xdr_SYMLINK3res, NULL_xdrproc_t, sizeof (SYMLINK3res), | |
| 953 nullfree, 0, | |
| 74 | 954 rfs3_symlink_getfh}, |
| 0 | 955 |
| 956 /* RFS3_MKNOD = 11 */ | |
| 957 {rfs3_mknod, | |
| 958 xdr_MKNOD3args, NULL_xdrproc_t, sizeof (MKNOD3args), | |
| 959 xdr_MKNOD3res, NULL_xdrproc_t, sizeof (MKNOD3res), | |
| 960 nullfree, 0, | |
| 74 | 961 rfs3_mknod_getfh}, |
| 0 | 962 |
| 963 /* RFS3_REMOVE = 12 */ | |
| 964 {rfs3_remove, | |
| 965 xdr_diropargs3, NULL_xdrproc_t, sizeof (REMOVE3args), | |
| 966 xdr_REMOVE3res, NULL_xdrproc_t, sizeof (REMOVE3res), | |
| 967 nullfree, 0, | |
| 74 | 968 rfs3_remove_getfh}, |
| 0 | 969 |
| 970 /* RFS3_RMDIR = 13 */ | |
| 971 {rfs3_rmdir, | |
| 972 xdr_diropargs3, NULL_xdrproc_t, sizeof (RMDIR3args), | |
| 973 xdr_RMDIR3res, NULL_xdrproc_t, sizeof (RMDIR3res), | |
| 974 nullfree, 0, | |
| 74 | 975 rfs3_rmdir_getfh}, |
| 0 | 976 |
| 977 /* RFS3_RENAME = 14 */ | |
| 978 {rfs3_rename, | |
| 979 xdr_RENAME3args, NULL_xdrproc_t, sizeof (RENAME3args), | |
| 980 xdr_RENAME3res, NULL_xdrproc_t, sizeof (RENAME3res), | |
| 981 nullfree, 0, | |
| 74 | 982 rfs3_rename_getfh}, |
| 0 | 983 |
| 984 /* RFS3_LINK = 15 */ | |
| 985 {rfs3_link, | |
| 986 xdr_LINK3args, NULL_xdrproc_t, sizeof (LINK3args), | |
| 987 xdr_LINK3res, NULL_xdrproc_t, sizeof (LINK3res), | |
| 988 nullfree, 0, | |
| 74 | 989 rfs3_link_getfh}, |
| 0 | 990 |
| 991 /* RFS3_READDIR = 16 */ | |
| 992 {rfs3_readdir, | |
| 993 xdr_READDIR3args, NULL_xdrproc_t, sizeof (READDIR3args), | |
| 994 xdr_READDIR3res, NULL_xdrproc_t, sizeof (READDIR3res), | |
| 995 rfs3_readdir_free, RPC_IDEMPOTENT, | |
| 74 | 996 rfs3_readdir_getfh}, |
| 0 | 997 |
| 998 /* RFS3_READDIRPLUS = 17 */ | |
| 999 {rfs3_readdirplus, | |
| 1000 xdr_READDIRPLUS3args, NULL_xdrproc_t, sizeof (READDIRPLUS3args), | |
| 1001 xdr_READDIRPLUS3res, NULL_xdrproc_t, sizeof (READDIRPLUS3res), | |
| 1002 rfs3_readdirplus_free, RPC_AVOIDWORK, | |
| 74 | 1003 rfs3_readdirplus_getfh}, |
| 0 | 1004 |
| 1005 /* RFS3_FSSTAT = 18 */ | |
| 1006 {rfs3_fsstat, | |
|
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1007 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (FSSTAT3args), |
| 0 | 1008 xdr_FSSTAT3res, NULL_xdrproc_t, sizeof (FSSTAT3res), |
| 1009 nullfree, RPC_IDEMPOTENT, | |
| 74 | 1010 rfs3_fsstat_getfh}, |
| 0 | 1011 |
| 1012 /* RFS3_FSINFO = 19 */ | |
| 1013 {rfs3_fsinfo, | |
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1014 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (FSINFO3args), |
| 0 | 1015 xdr_FSINFO3res, NULL_xdrproc_t, sizeof (FSINFO3res), |
| 1016 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON, | |
| 74 | 1017 rfs3_fsinfo_getfh}, |
| 0 | 1018 |
| 1019 /* RFS3_PATHCONF = 20 */ | |
| 1020 {rfs3_pathconf, | |
|
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1021 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (PATHCONF3args), |
| 0 | 1022 xdr_PATHCONF3res, NULL_xdrproc_t, sizeof (PATHCONF3res), |
| 1023 nullfree, RPC_IDEMPOTENT, | |
| 74 | 1024 rfs3_pathconf_getfh}, |
| 0 | 1025 |
| 1026 /* RFS3_COMMIT = 21 */ | |
| 1027 {rfs3_commit, | |
| 1028 xdr_COMMIT3args, NULL_xdrproc_t, sizeof (COMMIT3args), | |
| 1029 xdr_COMMIT3res, NULL_xdrproc_t, sizeof (COMMIT3res), | |
| 1030 nullfree, RPC_IDEMPOTENT, | |
| 74 | 1031 rfs3_commit_getfh}, |
| 0 | 1032 }; |
| 1033 | |
| 1034 static char *rfscallnames_v4[] = { | |
| 1035 "RFS4_NULL", | |
| 1036 "RFS4_COMPOUND", | |
| 1037 "RFS4_NULL", | |
| 1038 "RFS4_NULL", | |
| 1039 "RFS4_NULL", | |
| 1040 "RFS4_NULL", | |
| 1041 "RFS4_NULL", | |
| 1042 "RFS4_NULL", | |
| 1043 "RFS4_CREATE" | |
| 1044 }; | |
| 1045 | |
| 1046 static struct rpcdisp rfsdisptab_v4[] = { | |
| 1047 /* | |
| 1048 * NFS VERSION 4 | |
| 1049 */ | |
| 1050 | |
| 1051 /* RFS_NULL = 0 */ | |
| 1052 {rpc_null, | |
| 1053 xdr_void, NULL_xdrproc_t, 0, | |
| 1054 xdr_void, NULL_xdrproc_t, 0, | |
| 74 | 1055 nullfree, RPC_IDEMPOTENT, 0}, |
| 0 | 1056 |
| 1057 /* RFS4_compound = 1 */ | |
| 1058 {rfs4_compound, | |
| 806 | 1059 xdr_COMPOUND4args_srv, NULL_xdrproc_t, sizeof (COMPOUND4args), |
| 1060 xdr_COMPOUND4res_srv, NULL_xdrproc_t, sizeof (COMPOUND4res), | |
| 74 | 1061 rfs4_compound_free, 0, 0}, |
| 0 | 1062 }; |
| 1063 | |
| 1064 union rfs_args { | |
| 1065 /* | |
| 1066 * NFS VERSION 2 | |
| 1067 */ | |
| 1068 | |
| 1069 /* RFS_NULL = 0 */ | |
| 1070 | |
| 1071 /* RFS_GETATTR = 1 */ | |
| 1072 fhandle_t nfs2_getattr_args; | |
| 1073 | |
| 1074 /* RFS_SETATTR = 2 */ | |
| 1075 struct nfssaargs nfs2_setattr_args; | |
| 1076 | |
| 1077 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
| 1078 | |
| 1079 /* RFS_LOOKUP = 4 */ | |
| 1080 struct nfsdiropargs nfs2_lookup_args; | |
| 1081 | |
| 1082 /* RFS_READLINK = 5 */ | |
| 1083 fhandle_t nfs2_readlink_args; | |
| 1084 | |
| 1085 /* RFS_READ = 6 */ | |
| 1086 struct nfsreadargs nfs2_read_args; | |
| 1087 | |
| 1088 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
| 1089 | |
| 1090 /* RFS_WRITE = 8 */ | |
| 1091 struct nfswriteargs nfs2_write_args; | |
| 1092 | |
| 1093 /* RFS_CREATE = 9 */ | |
| 1094 struct nfscreatargs nfs2_create_args; | |
| 1095 | |
| 1096 /* RFS_REMOVE = 10 */ | |
| 1097 struct nfsdiropargs nfs2_remove_args; | |
| 1098 | |
| 1099 /* RFS_RENAME = 11 */ | |
| 1100 struct nfsrnmargs nfs2_rename_args; | |
| 1101 | |
| 1102 /* RFS_LINK = 12 */ | |
| 1103 struct nfslinkargs nfs2_link_args; | |
| 1104 | |
| 1105 /* RFS_SYMLINK = 13 */ | |
| 1106 struct nfsslargs nfs2_symlink_args; | |
| 1107 | |
| 1108 /* RFS_MKDIR = 14 */ | |
| 1109 struct nfscreatargs nfs2_mkdir_args; | |
| 1110 | |
| 1111 /* RFS_RMDIR = 15 */ | |
| 1112 struct nfsdiropargs nfs2_rmdir_args; | |
| 1113 | |
| 1114 /* RFS_READDIR = 16 */ | |
| 1115 struct nfsrddirargs nfs2_readdir_args; | |
| 1116 | |
| 1117 /* RFS_STATFS = 17 */ | |
| 1118 fhandle_t nfs2_statfs_args; | |
| 1119 | |
| 1120 /* | |
| 1121 * NFS VERSION 3 | |
| 1122 */ | |
| 1123 | |
| 1124 /* RFS_NULL = 0 */ | |
| 1125 | |
| 1126 /* RFS3_GETATTR = 1 */ | |
| 1127 GETATTR3args nfs3_getattr_args; | |
| 1128 | |
| 1129 /* RFS3_SETATTR = 2 */ | |
| 1130 SETATTR3args nfs3_setattr_args; | |
| 1131 | |
| 1132 /* RFS3_LOOKUP = 3 */ | |
| 1133 LOOKUP3args nfs3_lookup_args; | |
| 1134 | |
| 1135 /* RFS3_ACCESS = 4 */ | |
| 1136 ACCESS3args nfs3_access_args; | |
| 1137 | |
| 1138 /* RFS3_READLINK = 5 */ | |
| 1139 READLINK3args nfs3_readlink_args; | |
| 1140 | |
| 1141 /* RFS3_READ = 6 */ | |
| 1142 READ3args nfs3_read_args; | |
| 1143 | |
| 1144 /* RFS3_WRITE = 7 */ | |
| 1145 WRITE3args nfs3_write_args; | |
| 1146 | |
| 1147 /* RFS3_CREATE = 8 */ | |
| 1148 CREATE3args nfs3_create_args; | |
| 1149 | |
| 1150 /* RFS3_MKDIR = 9 */ | |
| 1151 MKDIR3args nfs3_mkdir_args; | |
| 1152 | |
| 1153 /* RFS3_SYMLINK = 10 */ | |
| 1154 SYMLINK3args nfs3_symlink_args; | |
| 1155 | |
| 1156 /* RFS3_MKNOD = 11 */ | |
| 1157 MKNOD3args nfs3_mknod_args; | |
| 1158 | |
| 1159 /* RFS3_REMOVE = 12 */ | |
| 1160 REMOVE3args nfs3_remove_args; | |
| 1161 | |
| 1162 /* RFS3_RMDIR = 13 */ | |
| 1163 RMDIR3args nfs3_rmdir_args; | |
| 1164 | |
| 1165 /* RFS3_RENAME = 14 */ | |
| 1166 RENAME3args nfs3_rename_args; | |
| 1167 | |
| 1168 /* RFS3_LINK = 15 */ | |
| 1169 LINK3args nfs3_link_args; | |
| 1170 | |
| 1171 /* RFS3_READDIR = 16 */ | |
| 1172 READDIR3args nfs3_readdir_args; | |
| 1173 | |
| 1174 /* RFS3_READDIRPLUS = 17 */ | |
| 1175 READDIRPLUS3args nfs3_readdirplus_args; | |
| 1176 | |
| 1177 /* RFS3_FSSTAT = 18 */ | |
| 1178 FSSTAT3args nfs3_fsstat_args; | |
| 1179 | |
| 1180 /* RFS3_FSINFO = 19 */ | |
| 1181 FSINFO3args nfs3_fsinfo_args; | |
| 1182 | |
| 1183 /* RFS3_PATHCONF = 20 */ | |
| 1184 PATHCONF3args nfs3_pathconf_args; | |
| 1185 | |
| 1186 /* RFS3_COMMIT = 21 */ | |
| 1187 COMMIT3args nfs3_commit_args; | |
| 1188 | |
| 1189 /* | |
| 1190 * NFS VERSION 4 | |
| 1191 */ | |
| 1192 | |
| 1193 /* RFS_NULL = 0 */ | |
| 1194 | |
| 1195 /* COMPUND = 1 */ | |
| 1196 COMPOUND4args nfs4_compound_args; | |
| 1197 }; | |
| 1198 | |
| 1199 union rfs_res { | |
| 1200 /* | |
| 1201 * NFS VERSION 2 | |
| 1202 */ | |
| 1203 | |
| 1204 /* RFS_NULL = 0 */ | |
| 1205 | |
| 1206 /* RFS_GETATTR = 1 */ | |
| 1207 struct nfsattrstat nfs2_getattr_res; | |
| 1208 | |
| 1209 /* RFS_SETATTR = 2 */ | |
| 1210 struct nfsattrstat nfs2_setattr_res; | |
| 1211 | |
| 1212 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
| 1213 | |
| 1214 /* RFS_LOOKUP = 4 */ | |
| 1215 struct nfsdiropres nfs2_lookup_res; | |
| 1216 | |
| 1217 /* RFS_READLINK = 5 */ | |
| 1218 struct nfsrdlnres nfs2_readlink_res; | |
| 1219 | |
| 1220 /* RFS_READ = 6 */ | |
| 1221 struct nfsrdresult nfs2_read_res; | |
| 1222 | |
| 1223 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
| 1224 | |
| 1225 /* RFS_WRITE = 8 */ | |
| 1226 struct nfsattrstat nfs2_write_res; | |
| 1227 | |
| 1228 /* RFS_CREATE = 9 */ | |
| 1229 struct nfsdiropres nfs2_create_res; | |
| 1230 | |
| 1231 /* RFS_REMOVE = 10 */ | |
| 1232 enum nfsstat nfs2_remove_res; | |
| 1233 | |
| 1234 /* RFS_RENAME = 11 */ | |
| 1235 enum nfsstat nfs2_rename_res; | |
| 1236 | |
| 1237 /* RFS_LINK = 12 */ | |
| 1238 enum nfsstat nfs2_link_res; | |
| 1239 | |
| 1240 /* RFS_SYMLINK = 13 */ | |
| 1241 enum nfsstat nfs2_symlink_res; | |
| 1242 | |
| 1243 /* RFS_MKDIR = 14 */ | |
| 1244 struct nfsdiropres nfs2_mkdir_res; | |
| 1245 | |
| 1246 /* RFS_RMDIR = 15 */ | |
| 1247 enum nfsstat nfs2_rmdir_res; | |
| 1248 | |
| 1249 /* RFS_READDIR = 16 */ | |
| 1250 struct nfsrddirres nfs2_readdir_res; | |
| 1251 | |
| 1252 /* RFS_STATFS = 17 */ | |
| 1253 struct nfsstatfs nfs2_statfs_res; | |
| 1254 | |
| 1255 /* | |
| 1256 * NFS VERSION 3 | |
| 1257 */ | |
| 1258 | |
| 1259 /* RFS_NULL = 0 */ | |
| 1260 | |
| 1261 /* RFS3_GETATTR = 1 */ | |
| 1262 GETATTR3res nfs3_getattr_res; | |
| 1263 | |
| 1264 /* RFS3_SETATTR = 2 */ | |
| 1265 SETATTR3res nfs3_setattr_res; | |
| 1266 | |
| 1267 /* RFS3_LOOKUP = 3 */ | |
| 1268 LOOKUP3res nfs3_lookup_res; | |
| 1269 | |
| 1270 /* RFS3_ACCESS = 4 */ | |
| 1271 ACCESS3res nfs3_access_res; | |
| 1272 | |
| 1273 /* RFS3_READLINK = 5 */ | |
| 1274 READLINK3res nfs3_readlink_res; | |
| 1275 | |
| 1276 /* RFS3_READ = 6 */ | |
| 1277 READ3res nfs3_read_res; | |
| 1278 | |
| 1279 /* RFS3_WRITE = 7 */ | |
| 1280 WRITE3res nfs3_write_res; | |
| 1281 | |
| 1282 /* RFS3_CREATE = 8 */ | |
| 1283 CREATE3res nfs3_create_res; | |
| 1284 | |
| 1285 /* RFS3_MKDIR = 9 */ | |
| 1286 MKDIR3res nfs3_mkdir_res; | |
| 1287 | |
| 1288 /* RFS3_SYMLINK = 10 */ | |
| 1289 SYMLINK3res nfs3_symlink_res; | |
| 1290 | |
| 1291 /* RFS3_MKNOD = 11 */ | |
| 1292 MKNOD3res nfs3_mknod_res; | |
| 1293 | |
| 1294 /* RFS3_REMOVE = 12 */ | |
| 1295 REMOVE3res nfs3_remove_res; | |
| 1296 | |
| 1297 /* RFS3_RMDIR = 13 */ | |
| 1298 RMDIR3res nfs3_rmdir_res; | |
| 1299 | |
| 1300 /* RFS3_RENAME = 14 */ | |
| 1301 RENAME3res nfs3_rename_res; | |
| 1302 | |
| 1303 /* RFS3_LINK = 15 */ | |
| 1304 LINK3res nfs3_link_res; | |
| 1305 | |
| 1306 /* RFS3_READDIR = 16 */ | |
| 1307 READDIR3res nfs3_readdir_res; | |
| 1308 | |
| 1309 /* RFS3_READDIRPLUS = 17 */ | |
| 1310 READDIRPLUS3res nfs3_readdirplus_res; | |
| 1311 | |
| 1312 /* RFS3_FSSTAT = 18 */ | |
| 1313 FSSTAT3res nfs3_fsstat_res; | |
| 1314 | |
| 1315 /* RFS3_FSINFO = 19 */ | |
| 1316 FSINFO3res nfs3_fsinfo_res; | |
| 1317 | |
| 1318 /* RFS3_PATHCONF = 20 */ | |
| 1319 PATHCONF3res nfs3_pathconf_res; | |
| 1320 | |
| 1321 /* RFS3_COMMIT = 21 */ | |
| 1322 COMMIT3res nfs3_commit_res; | |
| 1323 | |
| 1324 /* | |
| 1325 * NFS VERSION 4 | |
| 1326 */ | |
| 1327 | |
| 1328 /* RFS_NULL = 0 */ | |
| 1329 | |
| 1330 /* RFS4_COMPOUND = 1 */ | |
| 1331 COMPOUND4res nfs4_compound_res; | |
| 1332 | |
| 1333 }; | |
| 1334 | |
| 1335 static struct rpc_disptable rfs_disptable[] = { | |
| 1336 {sizeof (rfsdisptab_v2) / sizeof (rfsdisptab_v2[0]), | |
| 1337 rfscallnames_v2, | |
| 1338 &rfsproccnt_v2_ptr, rfsdisptab_v2}, | |
| 1339 {sizeof (rfsdisptab_v3) / sizeof (rfsdisptab_v3[0]), | |
| 1340 rfscallnames_v3, | |
| 1341 &rfsproccnt_v3_ptr, rfsdisptab_v3}, | |
| 1342 {sizeof (rfsdisptab_v4) / sizeof (rfsdisptab_v4[0]), | |
| 1343 rfscallnames_v4, | |
| 1344 &rfsproccnt_v4_ptr, rfsdisptab_v4}, | |
| 1345 }; | |
| 1346 | |
| 1347 /* | |
| 1348 * If nfs_portmon is set, then clients are required to use privileged | |
| 1349 * ports (ports < IPPORT_RESERVED) in order to get NFS services. | |
| 1350 * | |
| 1351 * N.B.: this attempt to carry forward the already ill-conceived notion | |
| 1352 * of privileged ports for TCP/UDP is really quite ineffectual. Not only | |
| 1353 * is it transport-dependent, it's laughably easy to spoof. If you're | |
| 1354 * really interested in security, you must start with secure RPC instead. | |
| 1355 */ | |
| 1356 static int nfs_portmon = 0; | |
| 1357 | |
| 1358 #ifdef DEBUG | |
| 1359 static int cred_hits = 0; | |
| 1360 static int cred_misses = 0; | |
| 1361 #endif | |
| 1362 | |
| 1363 | |
| 1364 #ifdef DEBUG | |
| 1365 /* | |
| 1366 * Debug code to allow disabling of rfs_dispatch() use of | |
| 1367 * fastxdrargs() and fastxdrres() calls for testing purposes. | |
| 1368 */ | |
| 1369 static int rfs_no_fast_xdrargs = 0; | |
| 1370 static int rfs_no_fast_xdrres = 0; | |
| 1371 #endif | |
| 1372 | |
| 1373 union acl_args { | |
| 1374 /* | |
| 1375 * ACL VERSION 2 | |
| 1376 */ | |
| 1377 | |
| 1378 /* ACL2_NULL = 0 */ | |
| 1379 | |
| 1380 /* ACL2_GETACL = 1 */ | |
| 1381 GETACL2args acl2_getacl_args; | |
| 1382 | |
| 1383 /* ACL2_SETACL = 2 */ | |
| 1384 SETACL2args acl2_setacl_args; | |
| 1385 | |
| 1386 /* ACL2_GETATTR = 3 */ | |
| 1387 GETATTR2args acl2_getattr_args; | |
| 1388 | |
| 1389 /* ACL2_ACCESS = 4 */ | |
| 1390 ACCESS2args acl2_access_args; | |
| 1391 | |
| 1392 /* ACL2_GETXATTRDIR = 5 */ | |
| 1393 GETXATTRDIR2args acl2_getxattrdir_args; | |
| 1394 | |
| 1395 /* | |
| 1396 * ACL VERSION 3 | |
| 1397 */ | |
| 1398 | |
| 1399 /* ACL3_NULL = 0 */ | |
| 1400 | |
| 1401 /* ACL3_GETACL = 1 */ | |
| 1402 GETACL3args acl3_getacl_args; | |
| 1403 | |
| 1404 /* ACL3_SETACL = 2 */ | |
| 1405 SETACL3args acl3_setacl; | |
| 1406 | |
| 1407 /* ACL3_GETXATTRDIR = 3 */ | |
| 1408 GETXATTRDIR3args acl3_getxattrdir_args; | |
| 1409 | |
| 1410 }; | |
| 1411 | |
| 1412 union acl_res { | |
| 1413 /* | |
| 1414 * ACL VERSION 2 | |
| 1415 */ | |
| 1416 | |
| 1417 /* ACL2_NULL = 0 */ | |
| 1418 | |
| 1419 /* ACL2_GETACL = 1 */ | |
| 1420 GETACL2res acl2_getacl_res; | |
| 1421 | |
| 1422 /* ACL2_SETACL = 2 */ | |
| 1423 SETACL2res acl2_setacl_res; | |
| 1424 | |
| 1425 /* ACL2_GETATTR = 3 */ | |
| 1426 GETATTR2res acl2_getattr_res; | |
| 1427 | |
| 1428 /* ACL2_ACCESS = 4 */ | |
| 1429 ACCESS2res acl2_access_res; | |
| 1430 | |
| 1431 /* ACL2_GETXATTRDIR = 5 */ | |
| 1432 GETXATTRDIR2args acl2_getxattrdir_res; | |
| 1433 | |
| 1434 /* | |
| 1435 * ACL VERSION 3 | |
| 1436 */ | |
| 1437 | |
| 1438 /* ACL3_NULL = 0 */ | |
| 1439 | |
| 1440 /* ACL3_GETACL = 1 */ | |
| 1441 GETACL3res acl3_getacl_res; | |
| 1442 | |
| 1443 /* ACL3_SETACL = 2 */ | |
| 1444 SETACL3res acl3_setacl_res; | |
| 1445 | |
| 1446 /* ACL3_GETXATTRDIR = 3 */ | |
| 1447 GETXATTRDIR3res acl3_getxattrdir_res; | |
| 1448 | |
| 1449 }; | |
| 1450 | |
| 1451 static bool_t | |
| 1452 auth_tooweak(struct svc_req *req, char *res) | |
| 1453 { | |
| 1454 | |
| 1455 if (req->rq_vers == NFS_VERSION && req->rq_proc == RFS_LOOKUP) { | |
| 1456 struct nfsdiropres *dr = (struct nfsdiropres *)res; | |
|
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1457 if ((enum wnfsstat)dr->dr_status == WNFSERR_CLNT_FLAVOR) |
| 0 | 1458 return (TRUE); |
| 1459 } else if (req->rq_vers == NFS_V3 && req->rq_proc == NFSPROC3_LOOKUP) { | |
| 1460 LOOKUP3res *resp = (LOOKUP3res *)res; | |
|
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1461 if ((enum wnfsstat)resp->status == WNFSERR_CLNT_FLAVOR) |
| 0 | 1462 return (TRUE); |
| 1463 } | |
| 1464 return (FALSE); | |
| 1465 } | |
| 1466 | |
| 74 | 1467 |
| 0 | 1468 static void |
| 1469 common_dispatch(struct svc_req *req, SVCXPRT *xprt, rpcvers_t min_vers, | |
| 1470 rpcvers_t max_vers, char *pgmname, | |
| 1471 struct rpc_disptable *disptable) | |
| 1472 { | |
| 1473 int which; | |
| 1474 rpcvers_t vers; | |
| 1475 char *args; | |
| 1476 union { | |
| 1477 union rfs_args ra; | |
| 1478 union acl_args aa; | |
| 1479 } args_buf; | |
| 1480 char *res; | |
| 1481 union { | |
| 1482 union rfs_res rr; | |
| 1483 union acl_res ar; | |
| 1484 } res_buf; | |
| 1485 struct rpcdisp *disp = NULL; | |
| 1486 int dis_flags = 0; | |
| 1487 cred_t *cr; | |
| 1488 int error = 0; | |
| 1489 int anon_ok; | |
| 1490 struct exportinfo *exi = NULL; | |
| 1491 unsigned int nfslog_rec_id; | |
| 1492 int dupstat; | |
| 1493 struct dupreq *dr; | |
| 1494 int authres; | |
| 1495 bool_t publicfh_ok = FALSE; | |
| 1496 enum_t auth_flavor; | |
| 1497 bool_t dupcached = FALSE; | |
| 1498 struct netbuf nb; | |
| 1499 bool_t logging_enabled = FALSE; | |
| 1500 struct exportinfo *nfslog_exi = NULL; | |
| 1232 | 1501 char **procnames; |
| 1502 char cbuf[INET6_ADDRSTRLEN]; /* to hold both IPv4 and IPv6 addr */ | |
| 0 | 1503 |
| 1504 vers = req->rq_vers; | |
| 1505 | |
| 1506 if (vers < min_vers || vers > max_vers) { | |
| 1507 svcerr_progvers(req->rq_xprt, min_vers, max_vers); | |
| 1508 error++; | |
| 1509 cmn_err(CE_NOTE, "%s: bad version number %u", pgmname, vers); | |
| 1510 goto done; | |
| 1511 } | |
| 1512 vers -= min_vers; | |
| 1513 | |
| 1514 which = req->rq_proc; | |
| 1515 if (which < 0 || which >= disptable[(int)vers].dis_nprocs) { | |
| 1516 svcerr_noproc(req->rq_xprt); | |
| 1517 error++; | |
| 1518 goto done; | |
| 1519 } | |
| 1520 | |
| 1521 (*(disptable[(int)vers].dis_proccntp))[which].value.ui64++; | |
| 1522 | |
| 1523 disp = &disptable[(int)vers].dis_table[which]; | |
| 1232 | 1524 procnames = disptable[(int)vers].dis_procnames; |
| 0 | 1525 |
| 1526 auth_flavor = req->rq_cred.oa_flavor; | |
| 1232 | 1527 |
| 0 | 1528 /* |
| 1529 * Deserialize into the args struct. | |
| 1530 */ | |
| 1531 args = (char *)&args_buf; | |
| 74 | 1532 |
| 0 | 1533 #ifdef DEBUG |
| 1534 if (rfs_no_fast_xdrargs || (auth_flavor == RPCSEC_GSS) || | |
| 1535 disp->dis_fastxdrargs == NULL_xdrproc_t || | |
|
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1536 !SVC_GETARGS(xprt, disp->dis_fastxdrargs, (char *)&args)) |
| 0 | 1537 #else |
| 1538 if ((auth_flavor == RPCSEC_GSS) || | |
| 1539 disp->dis_fastxdrargs == NULL_xdrproc_t || | |
|
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1540 !SVC_GETARGS(xprt, disp->dis_fastxdrargs, (char *)&args)) |
| 0 | 1541 #endif |
|
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|
1542 { |
| 0 | 1543 bzero(args, disp->dis_argsz); |
| 1544 if (!SVC_GETARGS(xprt, disp->dis_xdrargs, args)) { | |
|
4635
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|
1545 error++; |
|
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maheshvs
parents:
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diff
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|
1546 /* |
|
5372e33d8533
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maheshvs
parents:
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diff
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|
1547 * Check if we are outside our capabilities. |
|
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maheshvs
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|
1548 */ |
|
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|
1549 if (rfs4_minorvers_mismatch(req, xprt, (void *)args)) |
|
5372e33d8533
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|
1550 goto done; |
|
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1551 |
| 0 | 1552 svcerr_decode(xprt); |
| 1232 | 1553 cmn_err(CE_NOTE, |
| 1554 "Failed to decode arguments for %s version %u " | |
| 1555 "procedure %s client %s%s", | |
| 1556 pgmname, vers + min_vers, procnames[which], | |
| 1557 client_name(req), client_addr(req, cbuf)); | |
| 0 | 1558 goto done; |
| 1559 } | |
| 1560 } | |
| 1561 | |
| 1562 /* | |
| 74 | 1563 * If Version 4 use that specific dispatch function. |
| 0 | 1564 */ |
| 74 | 1565 if (req->rq_vers == 4) { |
| 1566 error += rfs4_dispatch(disp, req, xprt, args); | |
| 1567 goto done; | |
| 1568 } | |
| 1569 | |
| 1570 dis_flags = disp->dis_flags; | |
| 0 | 1571 |
| 1572 /* | |
| 1573 * Find export information and check authentication, | |
| 1574 * setting the credential if everything is ok. | |
| 1575 */ | |
| 1576 if (disp->dis_getfh != NULL) { | |
|
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1577 void *fh; |
|
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1578 fsid_t *fsid; |
|
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|
1579 fid_t *fid, *xfid; |
|
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1580 fhandle_t *fh2; |
|
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1581 nfs_fh3 *fh3; |
| 0 | 1582 |
| 1583 fh = (*disp->dis_getfh)(args); | |
|
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1584 switch (req->rq_vers) { |
|
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|
1585 case NFS_VERSION: |
|
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|
1586 fh2 = (fhandle_t *)fh; |
|
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1587 fsid = &fh2->fh_fsid; |
|
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1588 fid = (fid_t *)&fh2->fh_len; |
|
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1589 xfid = (fid_t *)&fh2->fh_xlen; |
|
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|
1590 break; |
|
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|
1591 case NFS_V3: |
|
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1592 fh3 = (nfs_fh3 *)fh; |
|
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1593 fsid = &fh3->fh3_fsid; |
|
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1594 fid = FH3TOFIDP(fh3); |
|
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1595 xfid = FH3TOXFIDP(fh3); |
|
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1596 break; |
|
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|
1597 } |
| 0 | 1598 |
| 1599 /* | |
| 1600 * Fix for bug 1038302 - corbin | |
| 1601 * There is a problem here if anonymous access is | |
| 1602 * disallowed. If the current request is part of the | |
| 1603 * client's mount process for the requested filesystem, | |
| 1604 * then it will carry root (uid 0) credentials on it, and | |
| 1605 * will be denied by checkauth if that client does not | |
| 1606 * have explicit root=0 permission. This will cause the | |
| 1607 * client's mount operation to fail. As a work-around, | |
| 1608 * we check here to see if the request is a getattr or | |
| 1609 * statfs operation on the exported vnode itself, and | |
| 1610 * pass a flag to checkauth with the result of this test. | |
| 1611 * | |
| 1612 * The filehandle refers to the mountpoint itself if | |
| 1613 * the fh_data and fh_xdata portions of the filehandle | |
| 1614 * are equal. | |
| 1615 * | |
| 1616 * Added anon_ok argument to checkauth(). | |
| 1617 */ | |
| 1618 | |
|
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1619 if ((dis_flags & RPC_ALLOWANON) && EQFID(fid, xfid)) |
| 0 | 1620 anon_ok = 1; |
| 1621 else | |
| 1622 anon_ok = 0; | |
| 1623 | |
| 1624 cr = xprt->xp_cred; | |
| 1625 ASSERT(cr != NULL); | |
| 1626 #ifdef DEBUG | |
| 1627 if (crgetref(cr) != 1) { | |
| 1628 crfree(cr); | |
| 1629 cr = crget(); | |
| 1630 xprt->xp_cred = cr; | |
| 1631 cred_misses++; | |
| 1632 } else | |
| 1633 cred_hits++; | |
| 1634 #else | |
| 1635 if (crgetref(cr) != 1) { | |
| 1636 crfree(cr); | |
| 1637 cr = crget(); | |
| 1638 xprt->xp_cred = cr; | |
| 1639 } | |
| 1640 #endif | |
| 1641 | |
|
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1642 exi = checkexport(fsid, xfid); |
| 74 | 1643 |
| 0 | 1644 if (exi != NULL) { |
|
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1645 publicfh_ok = PUBLICFH_CHECK(disp, exi, fsid, xfid); |
| 0 | 1646 |
| 1647 /* | |
| 1648 * Don't allow non-V4 clients access | |
| 1649 * to pseudo exports | |
| 1650 */ | |
| 1651 if (PSEUDO(exi)) { | |
| 1652 svcerr_weakauth(xprt); | |
| 1653 error++; | |
| 1654 goto done; | |
| 1655 } | |
| 1656 | |
| 1657 authres = checkauth(exi, req, cr, anon_ok, publicfh_ok); | |
| 1658 /* | |
| 1659 * authres > 0: authentication OK - proceed | |
| 1660 * authres == 0: authentication weak - return error | |
| 1661 * authres < 0: authentication timeout - drop | |
| 1662 */ | |
| 1663 if (authres <= 0) { | |
| 1664 if (authres == 0) { | |
| 1665 svcerr_weakauth(xprt); | |
| 1666 error++; | |
| 1667 } | |
| 1668 goto done; | |
| 1669 } | |
| 1670 } | |
| 1671 } else | |
| 1672 cr = NULL; | |
| 1673 | |
| 1674 if ((dis_flags & RPC_MAPRESP) && (auth_flavor != RPCSEC_GSS)) { | |
| 1675 res = (char *)SVC_GETRES(xprt, disp->dis_ressz); | |
| 1676 if (res == NULL) | |
| 1677 res = (char *)&res_buf; | |
| 1678 } else | |
| 1679 res = (char *)&res_buf; | |
| 1680 | |
| 1681 if (!(dis_flags & RPC_IDEMPOTENT)) { | |
| 1682 dupstat = SVC_DUP_EXT(xprt, req, res, disp->dis_ressz, &dr, | |
|
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|
1683 &dupcached); |
| 0 | 1684 |
| 1685 switch (dupstat) { | |
| 1686 case DUP_ERROR: | |
| 1687 svcerr_systemerr(xprt); | |
| 1688 error++; | |
| 1689 goto done; | |
| 1690 /* NOTREACHED */ | |
| 1691 case DUP_INPROGRESS: | |
| 1692 if (res != (char *)&res_buf) | |
| 1693 SVC_FREERES(xprt); | |
| 1694 error++; | |
| 1695 goto done; | |
| 1696 /* NOTREACHED */ | |
| 1697 case DUP_NEW: | |
| 1698 case DUP_DROP: | |
| 1699 curthread->t_flag |= T_DONTPEND; | |
| 74 | 1700 |
| 0 | 1701 (*disp->dis_proc)(args, res, exi, req, cr); |
| 74 | 1702 |
| 0 | 1703 curthread->t_flag &= ~T_DONTPEND; |
| 1704 if (curthread->t_flag & T_WOULDBLOCK) { | |
| 1705 curthread->t_flag &= ~T_WOULDBLOCK; | |
| 1706 SVC_DUPDONE_EXT(xprt, dr, res, NULL, | |
|
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1707 disp->dis_ressz, DUP_DROP); |
| 0 | 1708 if (res != (char *)&res_buf) |
| 1709 SVC_FREERES(xprt); | |
| 1710 error++; | |
| 1711 goto done; | |
| 1712 } | |
| 1713 if (dis_flags & RPC_AVOIDWORK) { | |
| 1714 SVC_DUPDONE_EXT(xprt, dr, res, NULL, | |
|
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1715 disp->dis_ressz, DUP_DROP); |
| 0 | 1716 } else { |
| 1717 SVC_DUPDONE_EXT(xprt, dr, res, | |
|
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1718 disp->dis_resfree == nullfree ? NULL : |
|
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1719 disp->dis_resfree, |
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|
1720 disp->dis_ressz, DUP_DONE); |
| 0 | 1721 dupcached = TRUE; |
| 1722 } | |
| 1723 break; | |
| 1724 case DUP_DONE: | |
| 1725 break; | |
| 1726 } | |
| 1727 | |
| 1728 } else { | |
| 1729 curthread->t_flag |= T_DONTPEND; | |
| 74 | 1730 |
| 0 | 1731 (*disp->dis_proc)(args, res, exi, req, cr); |
| 74 | 1732 |
| 0 | 1733 curthread->t_flag &= ~T_DONTPEND; |
| 1734 if (curthread->t_flag & T_WOULDBLOCK) { | |
| 1735 curthread->t_flag &= ~T_WOULDBLOCK; | |
| 1736 if (res != (char *)&res_buf) | |
| 1737 SVC_FREERES(xprt); | |
| 1738 error++; | |
| 1739 goto done; | |
| 1740 } | |
| 1741 } | |
| 1742 | |
| 1743 if (auth_tooweak(req, res)) { | |
| 1744 svcerr_weakauth(xprt); | |
| 1745 error++; | |
| 1746 goto done; | |
| 1747 } | |
| 1748 | |
| 1749 /* | |
| 1750 * Check to see if logging has been enabled on the server. | |
| 1751 * If so, then obtain the export info struct to be used for | |
| 1752 * the later writing of the log record. This is done for | |
| 1753 * the case that a lookup is done across a non-logged public | |
| 1754 * file system. | |
| 1755 */ | |
| 1756 if (nfslog_buffer_list != NULL) { | |
| 1757 nfslog_exi = nfslog_get_exi(exi, req, res, &nfslog_rec_id); | |
| 1758 /* | |
| 1759 * Is logging enabled? | |
| 1760 */ | |
| 1761 logging_enabled = (nfslog_exi != NULL); | |
| 1762 | |
| 1763 /* | |
| 1764 * Copy the netbuf for logging purposes, before it is | |
| 1765 * freed by svc_sendreply(). | |
| 1766 */ | |
| 1767 if (logging_enabled) { | |
| 1768 NFSLOG_COPY_NETBUF(nfslog_exi, xprt, &nb); | |
| 1769 /* | |
| 1770 * If RPC_MAPRESP flag set (i.e. in V2 ops) the | |
| 1771 * res gets copied directly into the mbuf and | |
| 1772 * may be freed soon after the sendreply. So we | |
| 1773 * must copy it here to a safe place... | |
| 1774 */ | |
| 1775 if (res != (char *)&res_buf) { | |
| 1776 bcopy(res, (char *)&res_buf, disp->dis_ressz); | |
| 1777 } | |
| 1778 } | |
| 1779 } | |
| 1780 | |
| 1781 /* | |
| 1782 * Serialize and send results struct | |
| 1783 */ | |
| 1784 #ifdef DEBUG | |
|
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1785 if (rfs_no_fast_xdrres == 0 && res != (char *)&res_buf) |
| 0 | 1786 #else |
|
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1787 if (res != (char *)&res_buf) |
| 0 | 1788 #endif |
|
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1789 { |
| 0 | 1790 if (!svc_sendreply(xprt, disp->dis_fastxdrres, res)) { |
| 1791 cmn_err(CE_NOTE, "%s: bad sendreply", pgmname); | |
|
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1792 svcerr_systemerr(xprt); |
| 0 | 1793 error++; |
| 1794 } | |
| 1795 } else { | |
| 1796 if (!svc_sendreply(xprt, disp->dis_xdrres, res)) { | |
| 1797 cmn_err(CE_NOTE, "%s: bad sendreply", pgmname); | |
|
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1798 svcerr_systemerr(xprt); |
| 0 | 1799 error++; |
| 1800 } | |
| 1801 } | |
| 1802 | |
| 1803 /* | |
| 1804 * Log if needed | |
| 1805 */ | |
| 1806 if (logging_enabled) { | |
| 1807 nfslog_write_record(nfslog_exi, req, args, (char *)&res_buf, | |
|
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|
1808 cr, &nb, nfslog_rec_id, NFSLOG_ONE_BUFFER); |
| 0 | 1809 exi_rele(nfslog_exi); |
| 1810 kmem_free((&nb)->buf, (&nb)->len); | |
| 1811 } | |
| 1812 | |
| 1813 /* | |
| 1814 * Free results struct. With the addition of NFS V4 we can | |
| 1815 * have non-idempotent procedures with functions. | |
| 1816 */ | |
| 1817 if (disp->dis_resfree != nullfree && dupcached == FALSE) { | |
| 1818 (*disp->dis_resfree)(res); | |
| 1819 } | |
| 1820 | |
| 1821 done: | |
| 1822 /* | |
| 1823 * Free arguments struct | |
| 1824 */ | |
| 1825 if (disp) { | |
| 1826 if (!SVC_FREEARGS(xprt, disp->dis_xdrargs, args)) { | |
| 1827 cmn_err(CE_NOTE, "%s: bad freeargs", pgmname); | |
| 1828 error++; | |
| 1829 } | |
| 1830 } else { | |
| 1831 if (!SVC_FREEARGS(xprt, (xdrproc_t)0, (caddr_t)0)) { | |
| 1832 cmn_err(CE_NOTE, "%s: bad freeargs", pgmname); | |
| 1833 error++; | |
| 1834 } | |
| 1835 } | |
| 1836 | |
| 1837 if (exi != NULL) | |
| 1838 exi_rele(exi); | |
| 1839 | |
| 1840 global_svstat_ptr[req->rq_vers][NFS_BADCALLS].value.ui64 += error; | |
| 1841 | |
| 1842 global_svstat_ptr[req->rq_vers][NFS_CALLS].value.ui64++; | |
| 1843 } | |
| 1844 | |
| 1845 static void | |
| 1846 rfs_dispatch(struct svc_req *req, SVCXPRT *xprt) | |
| 1847 { | |
| 1848 common_dispatch(req, xprt, NFS_VERSMIN, NFS_VERSMAX, | |
|
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1849 "NFS", rfs_disptable); |
| 0 | 1850 } |
| 1851 | |
| 1852 static char *aclcallnames_v2[] = { | |
| 1853 "ACL2_NULL", | |
| 1854 "ACL2_GETACL", | |
| 1855 "ACL2_SETACL", | |
| 1856 "ACL2_GETATTR", | |
| 1857 "ACL2_ACCESS", | |
| 1858 "ACL2_GETXATTRDIR" | |
| 1859 }; | |
| 1860 | |
| 1861 static struct rpcdisp acldisptab_v2[] = { | |
| 1862 /* | |
| 1863 * ACL VERSION 2 | |
| 1864 */ | |
| 1865 | |
| 1866 /* ACL2_NULL = 0 */ | |
| 1867 {rpc_null, | |
| 1868 xdr_void, NULL_xdrproc_t, 0, | |
| 1869 xdr_void, NULL_xdrproc_t, 0, | |
| 1870 nullfree, RPC_IDEMPOTENT, | |
| 1871 0}, | |
| 1872 | |
| 1873 /* ACL2_GETACL = 1 */ | |
| 1874 {acl2_getacl, | |
| 1875 xdr_GETACL2args, xdr_fastGETACL2args, sizeof (GETACL2args), | |
| 1876 xdr_GETACL2res, NULL_xdrproc_t, sizeof (GETACL2res), | |
| 1877 acl2_getacl_free, RPC_IDEMPOTENT, | |
| 1878 acl2_getacl_getfh}, | |
| 1879 | |
| 1880 /* ACL2_SETACL = 2 */ | |
| 1881 {acl2_setacl, | |
| 1882 xdr_SETACL2args, NULL_xdrproc_t, sizeof (SETACL2args), | |
| 1883 #ifdef _LITTLE_ENDIAN | |
| 1884 xdr_SETACL2res, xdr_fastSETACL2res, sizeof (SETACL2res), | |
| 1885 #else | |
| 1886 xdr_SETACL2res, NULL_xdrproc_t, sizeof (SETACL2res), | |
| 1887 #endif | |
| 1888 nullfree, RPC_MAPRESP, | |
| 1889 acl2_setacl_getfh}, | |
| 1890 | |
| 1891 /* ACL2_GETATTR = 3 */ | |
| 1892 {acl2_getattr, | |
| 1893 xdr_GETATTR2args, xdr_fastGETATTR2args, sizeof (GETATTR2args), | |
| 1894 #ifdef _LITTLE_ENDIAN | |
| 1895 xdr_GETATTR2res, xdr_fastGETATTR2res, sizeof (GETATTR2res), | |
| 1896 #else | |
| 1897 xdr_GETATTR2res, NULL_xdrproc_t, sizeof (GETATTR2res), | |
| 1898 #endif | |
| 1899 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
| 1900 acl2_getattr_getfh}, | |
| 1901 | |
| 1902 /* ACL2_ACCESS = 4 */ | |
| 1903 {acl2_access, | |
| 1904 xdr_ACCESS2args, xdr_fastACCESS2args, sizeof (ACCESS2args), | |
| 1905 #ifdef _LITTLE_ENDIAN | |
| 1906 xdr_ACCESS2res, xdr_fastACCESS2res, sizeof (ACCESS2res), | |
| 1907 #else | |
| 1908 xdr_ACCESS2res, NULL_xdrproc_t, sizeof (ACCESS2res), | |
| 1909 #endif | |
| 1910 nullfree, RPC_IDEMPOTENT|RPC_MAPRESP, | |
| 1911 acl2_access_getfh}, | |
| 1912 | |
| 1913 /* ACL2_GETXATTRDIR = 5 */ | |
| 1914 {acl2_getxattrdir, | |
| 1915 xdr_GETXATTRDIR2args, NULL_xdrproc_t, sizeof (GETXATTRDIR2args), | |
| 1916 xdr_GETXATTRDIR2res, NULL_xdrproc_t, sizeof (GETXATTRDIR2res), | |
| 1917 nullfree, RPC_IDEMPOTENT, | |
| 1918 acl2_getxattrdir_getfh}, | |
| 1919 }; | |
| 1920 | |
| 1921 static char *aclcallnames_v3[] = { | |
| 1922 "ACL3_NULL", | |
| 1923 "ACL3_GETACL", | |
| 1924 "ACL3_SETACL", | |
| 1925 "ACL3_GETXATTRDIR" | |
| 1926 }; | |
| 1927 | |
| 1928 static struct rpcdisp acldisptab_v3[] = { | |
| 1929 /* | |
| 1930 * ACL VERSION 3 | |
| 1931 */ | |
| 1932 | |
| 1933 /* ACL3_NULL = 0 */ | |
| 1934 {rpc_null, | |
| 1935 xdr_void, NULL_xdrproc_t, 0, | |
| 1936 xdr_void, NULL_xdrproc_t, 0, | |
| 1937 nullfree, RPC_IDEMPOTENT, | |
| 1938 0}, | |
| 1939 | |
| 1940 /* ACL3_GETACL = 1 */ | |
| 1941 {acl3_getacl, | |
| 1942 xdr_GETACL3args, NULL_xdrproc_t, sizeof (GETACL3args), | |
| 1943 xdr_GETACL3res, NULL_xdrproc_t, sizeof (GETACL3res), | |
| 1944 acl3_getacl_free, RPC_IDEMPOTENT, | |
| 1945 acl3_getacl_getfh}, | |
| 1946 | |
| 1947 /* ACL3_SETACL = 2 */ | |
| 1948 {acl3_setacl, | |
| 1949 xdr_SETACL3args, NULL_xdrproc_t, sizeof (SETACL3args), | |
| 1950 xdr_SETACL3res, NULL_xdrproc_t, sizeof (SETACL3res), | |
| 1951 nullfree, 0, | |
| 1952 acl3_setacl_getfh}, | |
| 1953 | |
| 1954 /* ACL3_GETXATTRDIR = 3 */ | |
| 1955 {acl3_getxattrdir, | |
| 1956 xdr_GETXATTRDIR3args, NULL_xdrproc_t, sizeof (GETXATTRDIR3args), | |
| 1957 xdr_GETXATTRDIR3res, NULL_xdrproc_t, sizeof (GETXATTRDIR3res), | |
| 1958 nullfree, RPC_IDEMPOTENT, | |
| 1959 acl3_getxattrdir_getfh}, | |
| 1960 }; | |
| 1961 | |
| 1962 static struct rpc_disptable acl_disptable[] = { | |
| 1963 {sizeof (acldisptab_v2) / sizeof (acldisptab_v2[0]), | |
| 1964 aclcallnames_v2, | |
| 1965 &aclproccnt_v2_ptr, acldisptab_v2}, | |
| 1966 {sizeof (acldisptab_v3) / sizeof (acldisptab_v3[0]), | |
| 1967 aclcallnames_v3, | |
| 1968 &aclproccnt_v3_ptr, acldisptab_v3}, | |
| 1969 }; | |
| 1970 | |
| 1971 static void | |
| 1972 acl_dispatch(struct svc_req *req, SVCXPRT *xprt) | |
| 1973 { | |
| 1974 common_dispatch(req, xprt, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, | |
|
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1975 "ACL", acl_disptable); |
| 0 | 1976 } |
| 1977 | |
| 1978 int | |
| 1979 checkwin(int flavor, int window, struct svc_req *req) | |
| 1980 { | |
| 1981 struct authdes_cred *adc; | |
| 1982 | |
| 1983 switch (flavor) { | |
| 1984 case AUTH_DES: | |
| 1985 adc = (struct authdes_cred *)req->rq_clntcred; | |
| 1986 if (adc->adc_fullname.window > window) | |
| 1987 return (0); | |
| 1988 break; | |
| 1989 | |
| 1990 default: | |
| 1991 break; | |
| 1992 } | |
| 1993 return (1); | |
| 1994 } | |
| 1995 | |
| 1996 | |
| 1997 /* | |
| 1998 * checkauth() will check the access permission against the export | |
| 1999 * information. Then map root uid/gid to appropriate uid/gid. | |
| 2000 * | |
| 2001 * This routine is used by NFS V3 and V2 code. | |
| 2002 */ | |
| 2003 static int | |
| 2004 checkauth(struct exportinfo *exi, struct svc_req *req, cred_t *cr, int anon_ok, | |
| 2005 bool_t publicfh_ok) | |
| 2006 { | |
| 2007 int i, nfsflavor, rpcflavor, stat, access; | |
| 2008 struct secinfo *secp; | |
| 2009 caddr_t principal; | |
| 2010 char buf[INET6_ADDRSTRLEN]; /* to hold both IPv4 and IPv6 addr */ | |
| 2011 int anon_res = 0; | |
| 2012 | |
| 2013 /* | |
|
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2014 * Check for privileged port number |
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2015 * N.B.: this assumes that we know the format of a netbuf. |
| 0 | 2016 */ |
| 2017 if (nfs_portmon) { | |
| 2018 struct sockaddr *ca; | |
| 2019 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; | |
| 2020 | |
| 2021 if (ca == NULL) | |
| 2022 return (0); | |
| 2023 | |
| 2024 if ((ca->sa_family == AF_INET && | |
| 2025 ntohs(((struct sockaddr_in *)ca)->sin_port) >= | |
| 2026 IPPORT_RESERVED) || | |
| 2027 (ca->sa_family == AF_INET6 && | |
| 2028 ntohs(((struct sockaddr_in6 *)ca)->sin6_port) >= | |
| 2029 IPPORT_RESERVED)) { | |
| 2030 cmn_err(CE_NOTE, | |
| 2031 "nfs_server: client %s%ssent NFS request from " | |
| 2032 "unprivileged port", | |
| 2033 client_name(req), client_addr(req, buf)); | |
| 2034 return (0); | |
| 2035 } | |
| 2036 } | |
| 2037 | |
| 2038 /* | |
| 2039 * return 1 on success or 0 on failure | |
| 2040 */ | |
| 2041 stat = sec_svc_getcred(req, cr, &principal, &nfsflavor); | |
| 2042 | |
| 2043 /* | |
| 2044 * A failed AUTH_UNIX svc_get_cred() implies we couldn't set | |
| 2045 * the credentials; below we map that to anonymous. | |
| 2046 */ | |
| 2047 if (!stat && nfsflavor != AUTH_UNIX) { | |
| 2048 cmn_err(CE_NOTE, | |
| 2049 "nfs_server: couldn't get unix cred for %s", | |
| 2050 client_name(req)); | |
| 2051 return (0); | |
| 2052 } | |
| 2053 | |
| 2054 /* | |
| 2055 * Short circuit checkauth() on operations that support the | |
| 2056 * public filehandle, and if the request for that operation | |
| 2057 * is using the public filehandle. Note that we must call | |
| 2058 * sec_svc_getcred() first so that xp_cookie is set to the | |
| 2059 * right value. Normally xp_cookie is just the RPC flavor | |
| 2060 * of the the request, but in the case of RPCSEC_GSS it | |
| 2061 * could be a pseudo flavor. | |
| 2062 */ | |
| 2063 if (publicfh_ok) | |
| 2064 return (1); | |
| 2065 | |
| 2066 rpcflavor = req->rq_cred.oa_flavor; | |
| 2067 /* | |
| 2068 * Check if the auth flavor is valid for this export | |
| 2069 */ | |
| 2070 access = nfsauth_access(exi, req); | |
| 2071 if (access & NFSAUTH_DROP) | |
| 2072 return (-1); /* drop the request */ | |
| 2073 | |
| 2074 if (access & NFSAUTH_DENIED) { | |
| 2075 /* | |
| 2076 * If anon_ok == 1 and we got NFSAUTH_DENIED, it was | |
| 2077 * probably due to the flavor not matching during the | |
| 2078 * the mount attempt. So map the flavor to AUTH_NONE | |
| 2079 * so that the credentials get mapped to the anonymous | |
| 2080 * user. | |
| 2081 */ | |
| 2082 if (anon_ok == 1) | |
| 2083 rpcflavor = AUTH_NONE; | |
| 2084 else | |
| 2085 return (0); /* deny access */ | |
| 2086 | |
| 2087 } else if (access & NFSAUTH_MAPNONE) { | |
| 2088 /* | |
| 2089 * Access was granted even though the flavor mismatched | |
| 2090 * because AUTH_NONE was one of the exported flavors. | |
| 2091 */ | |
| 2092 rpcflavor = AUTH_NONE; | |
| 2093 | |
| 2094 } else if (access & NFSAUTH_WRONGSEC) { | |
| 2095 /* | |
|
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2096 * NFSAUTH_WRONGSEC is used for NFSv4. If we get here, |
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2097 * it means a client ignored the list of allowed flavors |
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2098 * returned via the MOUNT protocol. So we just disallow it! |
| 0 | 2099 */ |
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2100 return (0); |
| 0 | 2101 } |
| 2102 | |
| 2103 switch (rpcflavor) { | |
| 2104 case AUTH_NONE: | |
| 2105 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
|
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2106 exi->exi_export.ex_anon); |
| 0 | 2107 (void) crsetgroups(cr, 0, NULL); |
| 2108 break; | |
| 2109 | |
| 2110 case AUTH_UNIX: | |
| 2111 if (!stat || crgetuid(cr) == 0 && !(access & NFSAUTH_ROOT)) { | |
| 2112 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
|
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2113 exi->exi_export.ex_anon); |
| 0 | 2114 (void) crsetgroups(cr, 0, NULL); |
|
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2115 } else if (!stat || crgetuid(cr) == 0 && |
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2116 access & NFSAUTH_ROOT) { |
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2117 /* |
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2118 * It is root, so apply rootid to get real UID |
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2119 * Find the secinfo structure. We should be able |
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2120 * to find it by the time we reach here. |
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2121 * nfsauth_access() has done the checking. |
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2122 */ |
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2123 secp = NULL; |
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2124 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { |
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2125 struct secinfo *sptr; |
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2126 sptr = &exi->exi_export.ex_secinfo[i]; |
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2127 if (sptr->s_secinfo.sc_nfsnum == nfsflavor) { |
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2128 secp = sptr; |
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2129 break; |
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2130 } |
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2131 } |
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2132 if (secp != NULL) { |
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2133 (void) crsetugid(cr, secp->s_rootid, |
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2134 secp->s_rootid); |
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2135 (void) crsetgroups(cr, 0, NULL); |
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2136 } |
| 0 | 2137 } |
| 2138 break; | |
| 2139 | |
| 2140 case AUTH_DES: | |
| 2141 case RPCSEC_GSS: | |
| 2142 /* | |
| 2143 * Find the secinfo structure. We should be able | |
| 2144 * to find it by the time we reach here. | |
| 2145 * nfsauth_access() has done the checking. | |
| 2146 */ | |
| 2147 secp = NULL; | |
| 2148 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { | |
| 2149 if (exi->exi_export.ex_secinfo[i].s_secinfo.sc_nfsnum == | |
| 2150 nfsflavor) { | |
| 2151 secp = &exi->exi_export.ex_secinfo[i]; | |
| 2152 break; | |
| 2153 } | |
| 2154 } | |
| 2155 | |
| 2156 if (!secp) { | |
| 2157 cmn_err(CE_NOTE, "nfs_server: client %s%shad " | |
| 2158 "no secinfo data for flavor %d", | |
| 2159 client_name(req), client_addr(req, buf), | |
| 2160 nfsflavor); | |
| 2161 return (0); | |
| 2162 } | |
| 2163 | |
| 2164 if (!checkwin(rpcflavor, secp->s_window, req)) { | |
| 2165 cmn_err(CE_NOTE, | |
| 2166 "nfs_server: client %s%sused invalid " | |
| 2167 "auth window value", | |
| 2168 client_name(req), client_addr(req, buf)); | |
| 2169 return (0); | |
| 2170 } | |
| 2171 | |
| 2172 /* | |
| 2173 * Map root principals listed in the share's root= list to root, | |
| 2174 * and map any others principals that were mapped to root by RPC | |
| 2175 * to anon. | |
| 2176 */ | |
| 2177 if (principal && sec_svc_inrootlist(rpcflavor, principal, | |
|
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2178 secp->s_rootcnt, secp->s_rootnames)) { |
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2179 if (crgetuid(cr) == 0 && secp->s_rootid == 0) |
| 0 | 2180 return (1); |
| 2181 | |
|
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2182 |
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2183 (void) crsetugid(cr, secp->s_rootid, secp->s_rootid); |
| 0 | 2184 |
| 2185 /* | |
| 2186 * NOTE: If and when kernel-land privilege tracing is | |
| 2187 * added this may have to be replaced with code that | |
| 2188 * retrieves root's supplementary groups (e.g., using | |
| 2189 * kgss_get_group_info(). In the meantime principals | |
| 2190 * mapped to uid 0 get all privileges, so setting cr's | |
| 2191 * supplementary groups for them does nothing. | |
| 2192 */ | |
| 2193 (void) crsetgroups(cr, 0, NULL); | |
| 2194 | |
| 2195 return (1); | |
| 2196 } | |
| 2197 | |
| 2198 /* | |
| 2199 * Not a root princ, or not in root list, map UID 0/nobody to | |
| 2200 * the anon ID for the share. (RPC sets cr's UIDs and GIDs to | |
| 2201 * UID_NOBODY and GID_NOBODY, respectively.) | |
| 2202 */ | |
| 2203 if (crgetuid(cr) != 0 && | |
| 2204 (crgetuid(cr) != UID_NOBODY || crgetgid(cr) != GID_NOBODY)) | |
| 2205 return (1); | |
| 2206 | |
| 2207 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
|
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2208 exi->exi_export.ex_anon); |
| 0 | 2209 (void) crsetgroups(cr, 0, NULL); |
| 2210 break; | |
| 2211 default: | |
| 2212 return (0); | |
| 2213 } /* switch on rpcflavor */ | |
| 2214 | |
| 2215 /* | |
| 2216 * Even if anon access is disallowed via ex_anon == -1, we allow | |
| 2217 * this access if anon_ok is set. So set creds to the default | |
| 2218 * "nobody" id. | |
| 2219 */ | |
| 2220 if (anon_res != 0) { | |
| 2221 if (anon_ok == 0) { | |
| 2222 cmn_err(CE_NOTE, | |
| 2223 "nfs_server: client %s%ssent wrong " | |
| 2224 "authentication for %s", | |
| 2225 client_name(req), client_addr(req, buf), | |
| 2226 exi->exi_export.ex_path ? | |
| 2227 exi->exi_export.ex_path : "?"); | |
| 2228 return (0); | |
| 2229 } | |
| 2230 | |
| 2231 if (crsetugid(cr, UID_NOBODY, GID_NOBODY) != 0) | |
| 2232 return (0); | |
| 2233 } | |
| 2234 | |
| 2235 return (1); | |
| 2236 } | |
| 2237 | |
| 2238 /* | |
| 2239 * returns 0 on failure, -1 on a drop, -2 on wrong security flavor, | |
| 2240 * and 1 on success | |
| 2241 */ | |
| 2242 int | |
| 2243 checkauth4(struct compound_state *cs, struct svc_req *req) | |
| 2244 { | |
| 2245 int i, rpcflavor, access; | |
| 2246 struct secinfo *secp; | |
| 2247 char buf[MAXHOST + 1]; | |
| 2248 int anon_res = 0, nfsflavor; | |
| 2249 struct exportinfo *exi; | |
| 2250 cred_t *cr; | |
| 2251 caddr_t principal; | |
| 2252 | |
| 2253 exi = cs->exi; | |
| 2254 cr = cs->cr; | |
| 2255 principal = cs->principal; | |
| 2256 nfsflavor = cs->nfsflavor; | |
| 2257 | |
| 2258 ASSERT(cr != NULL); | |
| 2259 | |
| 2260 rpcflavor = req->rq_cred.oa_flavor; | |
| 2261 cs->access &= ~CS_ACCESS_LIMITED; | |
| 2262 | |
| 2263 /* | |
|
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2264 * Check for privileged port number |
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2265 * N.B.: this assumes that we know the format of a netbuf. |
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2266 */ |
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2267 if (nfs_portmon) { |
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2268 struct sockaddr *ca; |
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2269 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; |
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2270 |
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2271 if (ca == NULL) |
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2272 return (0); |
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2273 |
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2274 if ((ca->sa_family == AF_INET && |
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2275 ntohs(((struct sockaddr_in *)ca)->sin_port) >= |
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2276 IPPORT_RESERVED) || |
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2277 (ca->sa_family == AF_INET6 && |
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2278 ntohs(((struct sockaddr_in6 *)ca)->sin6_port) >= |
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2279 IPPORT_RESERVED)) { |
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2280 cmn_err(CE_NOTE, |
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2281 "nfs_server: client %s%ssent NFSv4 request from " |
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2282 "unprivileged port", |
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2283 client_name(req), client_addr(req, buf)); |
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2284 return (0); |
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2285 } |
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2286 } |
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2287 |
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2288 /* |
| 0 | 2289 * Check the access right per auth flavor on the vnode of |
| 2290 * this export for the given request. | |
| 2291 */ | |
| 2292 access = nfsauth4_access(cs->exi, cs->vp, req); | |
| 2293 | |
| 2294 if (access & NFSAUTH_WRONGSEC) | |
| 2295 return (-2); /* no access for this security flavor */ | |
| 2296 | |
| 2297 if (access & NFSAUTH_DROP) | |
| 2298 return (-1); /* drop the request */ | |
| 2299 | |
| 2300 if (access & NFSAUTH_DENIED) { | |
| 2301 | |
| 2302 if (exi->exi_export.ex_seccnt > 0) | |
| 2303 return (0); /* deny access */ | |
| 2304 | |
| 2305 } else if (access & NFSAUTH_LIMITED) { | |
| 2306 | |
| 2307 cs->access |= CS_ACCESS_LIMITED; | |
| 2308 | |
| 2309 } else if (access & NFSAUTH_MAPNONE) { | |
| 2310 /* | |
| 2311 * Access was granted even though the flavor mismatched | |
| 2312 * because AUTH_NONE was one of the exported flavors. | |
| 2313 */ | |
| 2314 rpcflavor = AUTH_NONE; | |
| 2315 } | |
| 2316 | |
| 2317 /* | |
| 2318 * XXX probably need to redo some of it for nfsv4? | |
| 2319 * return 1 on success or 0 on failure | |
| 2320 */ | |
| 2321 | |
| 2322 switch (rpcflavor) { | |
| 2323 case AUTH_NONE: | |
| 2324 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
|
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2325 exi->exi_export.ex_anon); |
| 0 | 2326 (void) crsetgroups(cr, 0, NULL); |
| 2327 break; | |
| 2328 | |
| 2329 case AUTH_UNIX: | |
| 2330 if (crgetuid(cr) == 0 && !(access & NFSAUTH_ROOT)) { | |
| 2331 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
|
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2332 exi->exi_export.ex_anon); |
| 0 | 2333 (void) crsetgroups(cr, 0, NULL); |
|
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2334 } else if (crgetuid(cr) == 0 && access & NFSAUTH_ROOT) { |
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2335 /* |
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2336 * It is root, so apply rootid to get real UID |
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2337 * Find the secinfo structure. We should be able |
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2338 * to find it by the time we reach here. |
|
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2339 * nfsauth_access() has done the checking. |
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2340 */ |
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2341 secp = NULL; |
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2342 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { |
|
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2343 struct secinfo *sptr; |
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2344 sptr = &exi->exi_export.ex_secinfo[i]; |
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2345 if (sptr->s_secinfo.sc_nfsnum == nfsflavor) { |
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2346 secp = &exi->exi_export.ex_secinfo[i]; |
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2347 break; |
|
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2348 } |
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2349 } |
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2350 if (secp != NULL) { |
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2351 (void) crsetugid(cr, secp->s_rootid, |
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2352 secp->s_rootid); |
|
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2353 (void) crsetgroups(cr, 0, NULL); |
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2354 } |
| 0 | 2355 } |
| 2356 break; | |
| 2357 | |
| 2358 default: | |
| 2359 /* | |
| 2360 * Find the secinfo structure. We should be able | |
| 2361 * to find it by the time we reach here. | |
| 2362 * nfsauth_access() has done the checking. | |
| 2363 */ | |
| 2364 secp = NULL; | |
| 2365 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { | |
| 2366 if (exi->exi_export.ex_secinfo[i].s_secinfo.sc_nfsnum == | |
| 2367 nfsflavor) { | |
| 2368 secp = &exi->exi_export.ex_secinfo[i]; | |
| 2369 break; | |
| 2370 } | |
| 2371 } | |
| 2372 | |
| 2373 if (!secp) { | |
| 2374 cmn_err(CE_NOTE, "nfs_server: client %s%shad " | |
| 2375 "no secinfo data for flavor %d", | |
| 2376 client_name(req), client_addr(req, buf), | |
| 2377 nfsflavor); | |
| 2378 return (0); | |
| 2379 } | |
| 2380 | |
| 2381 if (!checkwin(rpcflavor, secp->s_window, req)) { | |
| 2382 cmn_err(CE_NOTE, | |
| 2383 "nfs_server: client %s%sused invalid " | |
| 2384 "auth window value", | |
| 2385 client_name(req), client_addr(req, buf)); | |
| 2386 return (0); | |
| 2387 } | |
| 2388 | |
| 2389 /* | |
| 2390 * Map root principals listed in the share's root= list to root, | |
| 2391 * and map any others principals that were mapped to root by RPC | |
|
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2392 * to anon. If not going to anon, set to rootid (root_mapping). |
| 0 | 2393 */ |
| 2394 if (principal && sec_svc_inrootlist(rpcflavor, principal, | |
|
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2395 secp->s_rootcnt, secp->s_rootnames)) { |
|
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2396 if (crgetuid(cr) == 0 && secp->s_rootid == 0) |
| 0 | 2397 return (1); |
| 2398 | |
|
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2399 (void) crsetugid(cr, secp->s_rootid, secp->s_rootid); |
| 0 | 2400 |
| 2401 /* | |
| 2402 * NOTE: If and when kernel-land privilege tracing is | |
| 2403 * added this may have to be replaced with code that | |
| 2404 * retrieves root's supplementary groups (e.g., using | |
| 2405 * kgss_get_group_info(). In the meantime principals | |
| 2406 * mapped to uid 0 get all privileges, so setting cr's | |
| 2407 * supplementary groups for them does nothing. | |
| 2408 */ | |
| 2409 (void) crsetgroups(cr, 0, NULL); | |
| 2410 | |
| 2411 return (1); | |
| 2412 } | |
| 2413 | |
| 2414 /* | |
| 2415 * Not a root princ, or not in root list, map UID 0/nobody to | |
| 2416 * the anon ID for the share. (RPC sets cr's UIDs and GIDs to | |
| 2417 * UID_NOBODY and GID_NOBODY, respectively.) | |
| 2418 */ | |
| 2419 if (crgetuid(cr) != 0 && | |
| 2420 (crgetuid(cr) != UID_NOBODY || crgetgid(cr) != GID_NOBODY)) | |
| 2421 return (1); | |
| 2422 | |
| 2423 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
|
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2424 exi->exi_export.ex_anon); |
| 0 | 2425 (void) crsetgroups(cr, 0, NULL); |
| 2426 break; | |
| 2427 } /* switch on rpcflavor */ | |
| 2428 | |
| 2429 /* | |
| 2430 * Even if anon access is disallowed via ex_anon == -1, we allow | |
| 2431 * this access if anon_ok is set. So set creds to the default | |
| 2432 * "nobody" id. | |
| 2433 */ | |
| 2434 | |
| 2435 if (anon_res != 0) { | |
| 2436 cmn_err(CE_NOTE, | |
|
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2437 "nfs_server: client %s%ssent wrong " |
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2438 "authentication for %s", |
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2439 client_name(req), client_addr(req, buf), |
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2440 exi->exi_export.ex_path ? |
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2441 exi->exi_export.ex_path : "?"); |
| 0 | 2442 return (0); |
| 2443 } | |
| 2444 | |
| 2445 return (1); | |
| 2446 } | |
| 2447 | |
| 2448 | |
| 2449 static char * | |
| 2450 client_name(struct svc_req *req) | |
| 2451 { | |
| 2452 char *hostname = NULL; | |
| 2453 | |
| 2454 /* | |
| 2455 * If it's a Unix cred then use the | |
| 2456 * hostname from the credential. | |
| 2457 */ | |
| 2458 if (req->rq_cred.oa_flavor == AUTH_UNIX) { | |
| 2459 hostname = ((struct authunix_parms *) | |
| 2460 req->rq_clntcred)->aup_machname; | |
| 2461 } | |
| 2462 if (hostname == NULL) | |
| 2463 hostname = ""; | |
| 2464 | |
| 2465 return (hostname); | |
| 2466 } | |
| 2467 | |
| 2468 static char * | |
| 2469 client_addr(struct svc_req *req, char *buf) | |
| 2470 { | |
| 2471 struct sockaddr *ca; | |
| 2472 uchar_t *b; | |
| 2473 char *frontspace = ""; | |
| 2474 | |
| 2475 /* | |
| 2476 * We assume we are called in tandem with client_name and the | |
| 2477 * format string looks like "...client %s%sblah blah..." | |
| 2478 * | |
| 2479 * If it's a Unix cred then client_name returned | |
| 2480 * a host name, so we need insert a space between host name | |
| 2481 * and IP address. | |
| 2482 */ | |
| 2483 if (req->rq_cred.oa_flavor == AUTH_UNIX) | |
| 2484 frontspace = " "; | |
| 2485 | |
| 2486 /* | |
| 2487 * Convert the caller's IP address to a dotted string | |
| 2488 */ | |
| 2489 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; | |
| 2490 | |
| 2491 if (ca->sa_family == AF_INET) { | |
|
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2492 b = (uchar_t *)&((struct sockaddr_in *)ca)->sin_addr; |
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2493 (void) sprintf(buf, "%s(%d.%d.%d.%d) ", frontspace, |
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2494 b[0] & 0xFF, b[1] & 0xFF, b[2] & 0xFF, b[3] & 0xFF); |
| 0 | 2495 } else if (ca->sa_family == AF_INET6) { |
| 2496 struct sockaddr_in6 *sin6; | |
| 2497 sin6 = (struct sockaddr_in6 *)ca; | |
| 2498 (void) kinet_ntop6((uchar_t *)&sin6->sin6_addr, | |
|
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2499 buf, INET6_ADDRSTRLEN); |
| 0 | 2500 |
| 2501 } else { | |
| 2502 | |
| 2503 /* | |
| 2504 * No IP address to print. If there was a host name | |
| 2505 * printed, then we print a space. | |
| 2506 */ | |
| 2507 (void) sprintf(buf, frontspace); | |
| 2508 } | |
| 2509 | |
| 2510 return (buf); | |
| 2511 } | |
| 2512 | |
| 2513 /* | |
| 2514 * NFS Server initialization routine. This routine should only be called | |
| 2515 * once. It performs the following tasks: | |
| 2516 * - Call sub-initialization routines (localize access to variables) | |
| 2517 * - Initialize all locks | |
| 2518 * - initialize the version 3 write verifier | |
| 2519 */ | |
| 2520 int | |
| 2521 nfs_srvinit(void) | |
| 2522 { | |
| 2523 int error; | |
| 2524 | |
| 2525 error = nfs_exportinit(); | |
| 2526 if (error != 0) | |
| 2527 return (error); | |
| 2528 error = rfs4_srvrinit(); | |
| 2529 if (error != 0) { | |
| 2530 nfs_exportfini(); | |
| 2531 return (error); | |
| 2532 } | |
| 2533 rfs_srvrinit(); | |
| 2534 rfs3_srvrinit(); | |
| 2535 nfsauth_init(); | |
| 2536 | |
| 2537 /* Init the stuff to control start/stop */ | |
| 2538 nfs_server_upordown = NFS_SERVER_STOPPED; | |
| 2539 mutex_init(&nfs_server_upordown_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 2540 cv_init(&nfs_server_upordown_cv, NULL, CV_DEFAULT, NULL); | |
| 2541 mutex_init(&rdma_wait_mutex, NULL, MUTEX_DEFAULT, NULL); | |
| 2542 cv_init(&rdma_wait_cv, NULL, CV_DEFAULT, NULL); | |
| 2543 | |
| 2544 return (0); | |
| 2545 } | |
| 2546 | |
| 2547 /* | |
| 2548 * NFS Server finalization routine. This routine is called to cleanup the | |
| 2549 * initialization work previously performed if the NFS server module could | |
| 2550 * not be loaded correctly. | |
| 2551 */ | |
| 2552 void | |
| 2553 nfs_srvfini(void) | |
| 2554 { | |
| 2555 nfsauth_fini(); | |
| 2556 rfs3_srvrfini(); | |
| 2557 rfs_srvrfini(); | |
| 2558 nfs_exportfini(); | |
| 2559 | |
| 2560 mutex_destroy(&nfs_server_upordown_lock); | |
| 2561 cv_destroy(&nfs_server_upordown_cv); | |
| 2562 mutex_destroy(&rdma_wait_mutex); | |
| 2563 cv_destroy(&rdma_wait_cv); | |
| 2564 } | |
| 2565 | |
| 2566 /* | |
| 2567 * Set up an iovec array of up to cnt pointers. | |
| 2568 */ | |
| 2569 | |
| 2570 void | |
| 2571 mblk_to_iov(mblk_t *m, int cnt, struct iovec *iovp) | |
| 2572 { | |
| 2573 while (m != NULL && cnt-- > 0) { | |
| 2574 iovp->iov_base = (caddr_t)m->b_rptr; | |
| 2575 iovp->iov_len = (m->b_wptr - m->b_rptr); | |
| 2576 iovp++; | |
| 2577 m = m->b_cont; | |
| 2578 } | |
| 2579 } | |
| 2580 | |
| 2581 /* | |
| 2582 * Common code between NFS Version 2 and NFS Version 3 for the public | |
| 2583 * filehandle multicomponent lookups. | |
| 2584 */ | |
| 2585 | |
| 2586 /* | |
| 2587 * Public filehandle evaluation of a multi-component lookup, following | |
| 2588 * symbolic links, if necessary. This may result in a vnode in another | |
| 2589 * filesystem, which is OK as long as the other filesystem is exported. | |
| 2590 * | |
| 2591 * Note that the exi will be set either to NULL or a new reference to the | |
| 2592 * exportinfo struct that corresponds to the vnode of the multi-component path. | |
| 2593 * It is the callers responsibility to release this reference. | |
| 2594 */ | |
| 2595 int | |
| 2596 rfs_publicfh_mclookup(char *p, vnode_t *dvp, cred_t *cr, vnode_t **vpp, | |
| 2597 struct exportinfo **exi, struct sec_ol *sec) | |
| 2598 { | |
| 2599 int pathflag; | |
| 2600 vnode_t *mc_dvp = NULL; | |
| 2601 vnode_t *realvp; | |
| 2602 int error; | |
| 2603 | |
| 2604 *exi = NULL; | |
| 2605 | |
| 2606 /* | |
| 2607 * check if the given path is a url or native path. Since p is | |
| 2608 * modified by MCLpath(), it may be empty after returning from | |
| 2609 * there, and should be checked. | |
| 2610 */ | |
| 2611 if ((pathflag = MCLpath(&p)) == -1) | |
| 2612 return (EIO); | |
| 2613 | |
| 2614 /* | |
| 2615 * If pathflag is SECURITY_QUERY, turn the SEC_QUERY bit | |
| 2616 * on in sec->sec_flags. This bit will later serve as an | |
| 2617 * indication in makefh_ol() or makefh3_ol() to overload the | |
| 2618 * filehandle to contain the sec modes used by the server for | |
| 2619 * the path. | |
| 2620 */ | |
| 2621 if (pathflag == SECURITY_QUERY) { | |
| 2622 if ((sec->sec_index = (uint_t)(*p)) > 0) { | |
| 2623 sec->sec_flags |= SEC_QUERY; | |
| 2624 p++; | |
| 2625 if ((pathflag = MCLpath(&p)) == -1) | |
| 2626 return (EIO); | |
| 2627 } else { | |
| 2628 cmn_err(CE_NOTE, | |
| 2629 "nfs_server: invalid security index %d, " | |
| 2630 "violating WebNFS SNEGO protocol.", sec->sec_index); | |
| 2631 return (EIO); | |
| 2632 } | |
| 2633 } | |
| 2634 | |
| 2635 if (p[0] == '\0') { | |
| 2636 error = ENOENT; | |
| 2637 goto publicfh_done; | |
| 2638 } | |
| 2639 | |
| 2640 error = rfs_pathname(p, &mc_dvp, vpp, dvp, cr, pathflag); | |
| 2641 | |
| 2642 /* | |
| 2643 * If name resolves to "/" we get EINVAL since we asked for | |
| 2644 * the vnode of the directory that the file is in. Try again | |
| 2645 * with NULL directory vnode. | |
| 2646 */ | |
| 2647 if (error == EINVAL) { | |
| 2648 error = rfs_pathname(p, NULL, vpp, dvp, cr, pathflag); | |
| 2649 if (!error) { | |
| 2650 ASSERT(*vpp != NULL); | |
| 2651 if ((*vpp)->v_type == VDIR) { | |
| 2652 VN_HOLD(*vpp); | |
| 2653 mc_dvp = *vpp; | |
| 2654 } else { | |
| 2655 /* | |
| 2656 * This should not happen, the filesystem is | |
| 2657 * in an inconsistent state. Fail the lookup | |
| 2658 * at this point. | |
| 2659 */ | |
| 2660 VN_RELE(*vpp); | |
| 2661 error = EINVAL; | |
| 2662 } | |
| 2663 } | |
| 2664 } | |
| 2665 | |
| 2666 if (error) | |
| 2667 goto publicfh_done; | |
| 2668 | |
| 2669 if (*vpp == NULL) { | |
| 2670 error = ENOENT; | |
| 2671 goto publicfh_done; | |
| 2672 } | |
| 2673 | |
| 2674 ASSERT(mc_dvp != NULL); | |
| 2675 ASSERT(*vpp != NULL); | |
| 2676 | |
| 2677 if ((*vpp)->v_type == VDIR) { | |
| 2678 do { | |
| 2679 /* | |
| 2680 * *vpp may be an AutoFS node, so we perform | |
| 2681 * a VOP_ACCESS() to trigger the mount of the intended | |
| 2682 * filesystem, so we can perform the lookup in the | |
| 2683 * intended filesystem. | |
| 2684 */ | |
| 5331 | 2685 (void) VOP_ACCESS(*vpp, 0, 0, cr, NULL); |
| 0 | 2686 |
| 2687 /* | |
| 2688 * If vnode is covered, get the | |
| 2689 * the topmost vnode. | |
| 2690 */ | |
| 2691 if (vn_mountedvfs(*vpp) != NULL) { | |
| 2692 error = traverse(vpp); | |
| 2693 if (error) { | |
| 2694 VN_RELE(*vpp); | |
| 2695 goto publicfh_done; | |
| 2696 } | |
| 2697 } | |
| 2698 | |
| 5331 | 2699 if (VOP_REALVP(*vpp, &realvp, NULL) == 0 && |
| 2700 realvp != *vpp) { | |
| 0 | 2701 /* |
| 2702 * If realvp is different from *vpp | |
| 2703 * then release our reference on *vpp, so that | |
| 2704 * the export access check be performed on the | |
| 2705 * real filesystem instead. | |
| 2706 */ | |
| 2707 VN_HOLD(realvp); | |
| 2708 VN_RELE(*vpp); | |
| 2709 *vpp = realvp; | |
|
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|
2710 } else { |
|
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|
2711 break; |
|
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diff
changeset
|
2712 } |
| 0 | 2713 /* LINTED */ |
| 2714 } while (TRUE); | |
| 2715 | |
| 2716 /* | |
| 2717 * Let nfs_vptexi() figure what the real parent is. | |
| 2718 */ | |
| 2719 VN_RELE(mc_dvp); | |
| 2720 mc_dvp = NULL; | |
| 2721 | |
| 2722 } else { | |
| 2723 /* | |
| 2724 * If vnode is covered, get the | |
| 2725 * the topmost vnode. | |
| 2726 */ | |
| 2727 if (vn_mountedvfs(mc_dvp) != NULL) { | |
| 2728 error = traverse(&mc_dvp); | |
| 2729 if (error) { | |
|
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|
2730 VN_RELE(*vpp); |
|
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diff
changeset
|
2731 goto publicfh_done; |
| 0 | 2732 } |
| 2733 } | |
| 2734 | |
| 5331 | 2735 if (VOP_REALVP(mc_dvp, &realvp, NULL) == 0 && |
| 2736 realvp != mc_dvp) { | |
| 0 | 2737 /* |
| 2738 * *vpp is a file, obtain realvp of the parent | |
| 2739 * directory vnode. | |
| 2740 */ | |
| 2741 VN_HOLD(realvp); | |
| 2742 VN_RELE(mc_dvp); | |
| 2743 mc_dvp = realvp; | |
| 2744 } | |
| 2745 } | |
| 2746 | |
| 2747 /* | |
| 2748 * The pathname may take us from the public filesystem to another. | |
| 2749 * If that's the case then just set the exportinfo to the new export | |
| 2750 * and build filehandle for it. Thanks to per-access checking there's | |
| 2751 * no security issues with doing this. If the client is not allowed | |
| 2752 * access to this new export then it will get an access error when it | |
| 2753 * tries to use the filehandle | |
| 2754 */ | |
| 2755 if (error = nfs_check_vpexi(mc_dvp, *vpp, kcred, exi)) { | |
| 2756 VN_RELE(*vpp); | |
| 2757 goto publicfh_done; | |
| 2758 } | |
| 2759 | |
| 2760 /* | |
| 2761 * Not allowed access to pseudo exports. | |
| 2762 */ | |
| 2763 if (PSEUDO(*exi)) { | |
| 2764 error = ENOENT; | |
| 2765 VN_RELE(*vpp); | |
| 2766 goto publicfh_done; | |
| 2767 } | |
| 2768 | |
| 2769 /* | |
| 2770 * Do a lookup for the index file. We know the index option doesn't | |
| 2771 * allow paths through handling in the share command, so mc_dvp will | |
| 2772 * be the parent for the index file vnode, if its present. Use | |
| 2773 * temporary pointers to preserve and reuse the vnode pointers of the | |
| 2774 * original directory in case there's no index file. Note that the | |
| 2775 * index file is a native path, and should not be interpreted by | |
| 2776 * the URL parser in rfs_pathname() | |
| 2777 */ | |
| 2778 if (((*exi)->exi_export.ex_flags & EX_INDEX) && | |
| 2779 ((*vpp)->v_type == VDIR) && (pathflag == URLPATH)) { | |
| 2780 vnode_t *tvp, *tmc_dvp; /* temporary vnode pointers */ | |
| 2781 | |
| 2782 tmc_dvp = mc_dvp; | |
| 2783 mc_dvp = tvp = *vpp; | |
| 2784 | |
| 2785 error = rfs_pathname((*exi)->exi_export.ex_index, NULL, vpp, | |
| 2786 mc_dvp, cr, NATIVEPATH); | |
| 2787 | |
| 2788 if (error == ENOENT) { | |
| 2789 *vpp = tvp; | |
| 2790 mc_dvp = tmc_dvp; | |
| 2791 error = 0; | |
| 2792 } else { /* ok or error other than ENOENT */ | |
| 2793 if (tmc_dvp) | |
| 2794 VN_RELE(tmc_dvp); | |
| 2795 if (error) | |
| 2796 goto publicfh_done; | |
| 2797 | |
| 2798 /* | |
| 2799 * Found a valid vp for index "filename". Sanity check | |
| 2800 * for odd case where a directory is provided as index | |
| 2801 * option argument and leads us to another filesystem | |
| 2802 */ | |
| 2803 | |
| 2804 /* Release the reference on the old exi value */ | |
|
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|
2805 ASSERT(*exi != NULL); |
| 0 | 2806 exi_rele(*exi); |
| 2807 | |
| 2808 if (error = nfs_check_vpexi(mc_dvp, *vpp, kcred, exi)) { | |
| 2809 VN_RELE(*vpp); | |
| 2810 goto publicfh_done; | |
| 2811 } | |
| 2812 } | |
| 2813 } | |
| 2814 | |
| 2815 publicfh_done: | |
| 2816 if (mc_dvp) | |
| 2817 VN_RELE(mc_dvp); | |
| 2818 | |
| 2819 return (error); | |
| 2820 } | |
| 2821 | |
| 2822 /* | |
| 2823 * Evaluate a multi-component path | |
| 2824 */ | |
| 2825 int | |
| 2826 rfs_pathname( | |
| 2827 char *path, /* pathname to evaluate */ | |
| 2828 vnode_t **dirvpp, /* ret for ptr to parent dir vnode */ | |
| 2829 vnode_t **compvpp, /* ret for ptr to component vnode */ | |
| 2830 vnode_t *startdvp, /* starting vnode */ | |
| 2831 cred_t *cr, /* user's credential */ | |
| 2832 int pathflag) /* flag to identify path, e.g. URL */ | |
| 2833 { | |
| 2834 char namebuf[TYPICALMAXPATHLEN]; | |
| 2835 struct pathname pn; | |
| 2836 int error; | |
| 2837 | |
| 2838 /* | |
| 2839 * If pathname starts with '/', then set startdvp to root. | |
| 2840 */ | |
| 2841 if (*path == '/') { | |
| 2842 while (*path == '/') | |
| 2843 path++; | |
| 2844 | |
| 2845 startdvp = rootdir; | |
| 2846 } | |
| 2847 | |
| 2848 error = pn_get_buf(path, UIO_SYSSPACE, &pn, namebuf, sizeof (namebuf)); | |
| 2849 if (error == 0) { | |
| 2850 /* | |
| 2851 * Call the URL parser for URL paths to modify the original | |
| 2852 * string to handle any '%' encoded characters that exist. | |
| 2853 * Done here to avoid an extra bcopy in the lookup. | |
| 2854 * We need to be careful about pathlen's. We know that | |
| 2855 * rfs_pathname() is called with a non-empty path. However, | |
| 2856 * it could be emptied due to the path simply being all /'s, | |
| 2857 * which is valid to proceed with the lookup, or due to the | |
| 2858 * URL parser finding an encoded null character at the | |
| 2859 * beginning of path which should not proceed with the lookup. | |
| 2860 */ | |
| 2861 if (pn.pn_pathlen != 0 && pathflag == URLPATH) { | |
| 2862 URLparse(pn.pn_path); | |
| 2863 if ((pn.pn_pathlen = strlen(pn.pn_path)) == 0) | |
| 2864 return (ENOENT); | |
| 2865 } | |
| 2866 VN_HOLD(startdvp); | |
| 2867 error = lookuppnvp(&pn, NULL, NO_FOLLOW, dirvpp, compvpp, | |
| 2868 rootdir, startdvp, cr); | |
| 2869 } | |
| 2870 if (error == ENAMETOOLONG) { | |
| 2871 /* | |
| 2872 * This thread used a pathname > TYPICALMAXPATHLEN bytes long. | |
| 2873 */ | |
| 2874 if (error = pn_get(path, UIO_SYSSPACE, &pn)) | |
| 2875 return (error); | |
| 2876 if (pn.pn_pathlen != 0 && pathflag == URLPATH) { | |
| 2877 URLparse(pn.pn_path); | |
| 2878 if ((pn.pn_pathlen = strlen(pn.pn_path)) == 0) { | |
| 2879 pn_free(&pn); | |
| 2880 return (ENOENT); | |
| 2881 } | |
| 2882 } | |
| 2883 VN_HOLD(startdvp); | |
| 2884 error = lookuppnvp(&pn, NULL, NO_FOLLOW, dirvpp, compvpp, | |
| 2885 rootdir, startdvp, cr); | |
| 2886 pn_free(&pn); | |
| 2887 } | |
| 2888 | |
| 2889 return (error); | |
| 2890 } | |
| 2891 | |
| 2892 /* | |
| 2893 * Adapt the multicomponent lookup path depending on the pathtype | |
| 2894 */ | |
| 2895 static int | |
| 2896 MCLpath(char **path) | |
| 2897 { | |
| 2898 unsigned char c = (unsigned char)**path; | |
| 2899 | |
| 2900 /* | |
| 2901 * If the MCL path is between 0x20 and 0x7E (graphic printable | |
| 2902 * character of the US-ASCII coded character set), its a URL path, | |
| 2903 * per RFC 1738. | |
| 2904 */ | |
| 2905 if (c >= 0x20 && c <= 0x7E) | |
| 2906 return (URLPATH); | |
| 2907 | |
| 2908 /* | |
| 2909 * If the first octet of the MCL path is not an ASCII character | |
| 2910 * then it must be interpreted as a tag value that describes the | |
| 2911 * format of the remaining octets of the MCL path. | |
| 2912 * | |
| 2913 * If the first octet of the MCL path is 0x81 it is a query | |
| 2914 * for the security info. | |
| 2915 */ | |
| 2916 switch (c) { | |
| 2917 case 0x80: /* native path, i.e. MCL via mount protocol */ | |
| 2918 (*path)++; | |
| 2919 return (NATIVEPATH); | |
| 2920 case 0x81: /* security query */ | |
| 2921 (*path)++; | |
| 2922 return (SECURITY_QUERY); | |
| 2923 default: | |
| 2924 return (-1); | |
| 2925 } | |
| 2926 } | |
| 2927 | |
| 2928 #define fromhex(c) ((c >= '0' && c <= '9') ? (c - '0') : \ | |
| 2929 ((c >= 'A' && c <= 'F') ? (c - 'A' + 10) :\ | |
| 2930 ((c >= 'a' && c <= 'f') ? (c - 'a' + 10) : 0))) | |
| 2931 | |
| 2932 /* | |
| 5331 | 2933 * The implementation of URLparse guarantees that the final string will |
| 0 | 2934 * fit in the original one. Replaces '%' occurrences followed by 2 characters |
| 2935 * with its corresponding hexadecimal character. | |
| 2936 */ | |
| 2937 static void | |
| 2938 URLparse(char *str) | |
| 2939 { | |
| 2940 char *p, *q; | |
| 2941 | |
| 2942 p = q = str; | |
| 2943 while (*p) { | |
| 2944 *q = *p; | |
| 2945 if (*p++ == '%') { | |
| 2946 if (*p) { | |
| 2947 *q = fromhex(*p) * 16; | |
| 2948 p++; | |
| 2949 if (*p) { | |
| 2950 *q += fromhex(*p); | |
| 2951 p++; | |
| 2952 } | |
| 2953 } | |
| 2954 } | |
| 2955 q++; | |
| 2956 } | |
| 2957 *q = '\0'; | |
| 2958 } | |
| 2959 | |
| 2960 | |
| 2961 /* | |
| 2962 * Get the export information for the lookup vnode, and verify its | |
| 2963 * useable. | |
| 2964 */ | |
| 2965 int | |
| 2966 nfs_check_vpexi(vnode_t *mc_dvp, vnode_t *vp, cred_t *cr, | |
|
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|
2967 struct exportinfo **exi) |
| 0 | 2968 { |
| 2969 int walk; | |
| 2970 int error = 0; | |
|
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|
2971 |
|
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|
2972 *exi = nfs_vptoexi(mc_dvp, vp, cr, &walk, NULL, FALSE); |
|
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|
2973 if (*exi == NULL) |
| 0 | 2974 error = EACCES; |
| 2975 else { | |
| 2976 /* | |
| 2977 * If nosub is set for this export then | |
| 2978 * a lookup relative to the public fh | |
| 2979 * must not terminate below the | |
| 2980 * exported directory. | |
| 2981 */ | |
|
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|
2982 if ((*exi)->exi_export.ex_flags & EX_NOSUB && walk > 0) |
| 0 | 2983 error = EACCES; |
| 2984 } | |
|
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2985 |
| 0 | 2986 return (error); |
| 2987 } | |
|
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2988 |
|
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2989 /* |
|
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2990 * Do the main work of handling HA-NFSv4 Resource Group failover on |
|
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2991 * Sun Cluster. |
|
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2992 * We need to detect whether any RG admin paths have been added or removed, |
|
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2993 * and adjust resources accordingly. |
|
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2994 * Currently we're using a very inefficient algorithm, ~ 2 * O(n**2). In |
|
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2995 * order to scale, the list and array of paths need to be held in more |
|
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2996 * suitable data structures. |
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|
2997 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2998 static void |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2999 hanfsv4_failover(void) |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3000 { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3001 int i, start_grace, numadded_paths = 0; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3002 char **added_paths = NULL; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3003 rfs4_dss_path_t *dss_path; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3004 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3005 /* |
| 2390 | 3006 * Note: currently, rfs4_dss_pathlist cannot be NULL, since |
| 3007 * it will always include an entry for NFS4_DSS_VAR_DIR. If we | |
| 3008 * make the latter dynamically specified too, the following will | |
| 3009 * need to be adjusted. | |
| 3010 */ | |
| 3011 | |
| 3012 /* | |
|
2035
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3013 * First, look for removed paths: RGs that have been failed-over |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3014 * away from this node. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3015 * Walk the "currently-serving" rfs4_dss_pathlist and, for each |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3016 * path, check if it is on the "passed-in" rfs4_dss_newpaths array |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3017 * from nfsd. If not, that RG path has been removed. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3018 * |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3019 * Note that nfsd has sorted rfs4_dss_newpaths for us, and removed |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3020 * any duplicates. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3021 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3022 dss_path = rfs4_dss_pathlist; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3023 do { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3024 int found = 0; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3025 char *path = dss_path->path; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3026 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3027 /* used only for non-HA so may not be removed */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3028 if (strcmp(path, NFS4_DSS_VAR_DIR) == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3029 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3030 continue; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3031 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3032 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3033 for (i = 0; i < rfs4_dss_numnewpaths; i++) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3034 int cmpret; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3035 char *newpath = rfs4_dss_newpaths[i]; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3036 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3037 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3038 * Since nfsd has sorted rfs4_dss_newpaths for us, |
| 2390 | 3039 * once the return from strcmp is negative we know |
|
2035
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3040 * we've passed the point where "path" should be, |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3041 * and can stop searching: "path" has been removed. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3042 */ |
| 2390 | 3043 cmpret = strcmp(path, newpath); |
|
2035
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3044 if (cmpret < 0) |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3045 break; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3046 if (cmpret == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3047 found = 1; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3048 break; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3049 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3050 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3051 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3052 if (found == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3053 unsigned index = dss_path->index; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3054 rfs4_servinst_t *sip = dss_path->sip; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3055 rfs4_dss_path_t *path_next = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3056 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3057 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3058 * This path has been removed. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3059 * We must clear out the servinst reference to |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3060 * it, since it's now owned by another |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3061 * node: we should not attempt to touch it. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3062 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3063 ASSERT(dss_path == sip->dss_paths[index]); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3064 sip->dss_paths[index] = NULL; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3065 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3066 /* remove from "currently-serving" list, and destroy */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3067 remque(dss_path); |
| 2390 | 3068 /* allow for NUL */ |
| 3069 kmem_free(dss_path->path, strlen(dss_path->path) + 1); | |
|
2035
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3070 kmem_free(dss_path, sizeof (rfs4_dss_path_t)); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3071 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3072 dss_path = path_next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3073 } else { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3074 /* path was found; not removed */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3075 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3076 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3077 } while (dss_path != rfs4_dss_pathlist); |
|
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 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3080 * 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
|
3081 * to this node. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3082 * Walk the "passed-in" rfs4_dss_newpaths array from nfsd and, |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3083 * for each path, check if it is on the "currently-serving" |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3084 * 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
|
3085 * |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3086 * 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
|
3087 * |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3088 * Note: numadded_paths <= rfs4_dss_numnewpaths, which gives us |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3089 * 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
|
3090 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3091 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3092 /* probably more space than we need, but guaranteed to be enough */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3093 if (rfs4_dss_numnewpaths > 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3094 size_t sz = rfs4_dss_numnewpaths * sizeof (char *); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3095 added_paths = kmem_zalloc(sz, KM_SLEEP); |
|
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 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3098 /* walk the "passed-in" rfs4_dss_newpaths array from nfsd */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3099 for (i = 0; i < rfs4_dss_numnewpaths; i++) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3100 int found = 0; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3101 char *newpath = rfs4_dss_newpaths[i]; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3102 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3103 dss_path = rfs4_dss_pathlist; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3104 do { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3105 char *path = dss_path->path; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3106 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3107 /* used only for non-HA */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3108 if (strcmp(path, NFS4_DSS_VAR_DIR) == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3109 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3110 continue; |
|
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 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3113 if (strncmp(path, newpath, strlen(path)) == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3114 found = 1; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3115 break; |
|
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 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3118 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3119 } while (dss_path != rfs4_dss_pathlist); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3120 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3121 if (found == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3122 added_paths[numadded_paths] = newpath; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3123 numadded_paths++; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3124 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3125 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3126 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3127 /* did we find any added paths? */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3128 if (numadded_paths > 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3129 /* create a new server instance, and start its grace period */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3130 start_grace = 1; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3131 rfs4_servinst_create(start_grace, numadded_paths, added_paths); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3132 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3133 /* read in the stable storage state from these paths */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3134 rfs4_dss_readstate(numadded_paths, added_paths); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3135 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3136 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3137 * Multiple failovers during a grace period will cause |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3138 * clients of the same resource group to be partitioned |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3139 * into different server instances, with different |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3140 * grace periods. Since clients of the same resource |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
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diff
changeset
|
3141 * group must be subject to the same grace period, |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
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parents:
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diff
changeset
|
3142 * we need to reset all currently active grace periods. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3143 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3144 rfs4_grace_reset_all(); |
|
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 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3147 if (rfs4_dss_numnewpaths > 0) |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3148 kmem_free(added_paths, rfs4_dss_numnewpaths * sizeof (char *)); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
3149 } |
|
9871
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 /* |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3152 * 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
|
3153 * 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
|
3154 */ |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3155 ts_label_t * |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3156 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
|
3157 { |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3158 zone_t *zone; |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3159 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
|
3160 char *path; |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3161 |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3162 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
|
3163 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
|
3164 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
|
3165 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
|
3166 } else { |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3167 /* |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3168 * 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
|
3169 * 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
|
3170 * 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
|
3171 * 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
|
3172 */ |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3173 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
|
3174 if (path == NULL) { |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3175 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
|
3176 return (NULL); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3177 } |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3178 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
|
3179 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
|
3180 } |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3181 /* |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3182 * 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
|
3183 * 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
|
3184 * 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
|
3185 * 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
|
3186 */ |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3187 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
|
3188 label_hold(zone_label); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3189 zone_rele(zone); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3190 return (zone_label); |
|
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 /* |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3194 * 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
|
3195 * 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
|
3196 */ |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3197 boolean_t |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3198 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
|
3199 struct exportinfo *exi) |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
8695
diff
changeset
|
3200 { |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
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diff
changeset
|
3201 bslabel_t *slabel; |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
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diff
changeset
|
3202 ts_label_t *tslabel; |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
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diff
changeset
|
3203 boolean_t result; |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
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diff
changeset
|
3204 |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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diff
changeset
|
3205 if ((tslabel = nfs_getflabel(vp, exi)) == NULL) { |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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diff
changeset
|
3206 return (B_FALSE); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
parents:
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diff
changeset
|
3207 } |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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parents:
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diff
changeset
|
3208 slabel = label2bslabel(tslabel); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
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diff
changeset
|
3209 DTRACE_PROBE4(tx__rfs__log__info__labelcheck, char *, |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
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diff
changeset
|
3210 "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>
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diff
changeset
|
3211 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>
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diff
changeset
|
3212 |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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diff
changeset
|
3213 if (flag == EQUALITY_CHECK) |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
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diff
changeset
|
3214 result = blequal(clabel, slabel); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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diff
changeset
|
3215 else |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
Jarrett Lu <Jarrett.Lu@Sun.COM>
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diff
changeset
|
3216 result = bldominates(clabel, slabel); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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diff
changeset
|
3217 label_rele(tslabel); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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diff
changeset
|
3218 return (result); |
|
6f02df7ca581
6746299 assertion !vn_ismntpt(vp) fail in snv_98
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diff
changeset
|
3219 } |
|
11539
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
|
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 /* |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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9987
diff
changeset
|
3222 * 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>
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9987
diff
changeset
|
3223 * 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>
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9987
diff
changeset
|
3224 * 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>
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changeset
|
3225 */ |
|
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 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
|
3227 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
|
3228 { |
|
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 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
|
3230 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
|
3231 |
|
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
|
3232 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:
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>
parents:
9987
diff
changeset
|
3234 /* |
|
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 * 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
|
3236 * 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
|
3237 */ |
|
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 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
|
3239 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
|
3240 |
|
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 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
|
3242 (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
|
3243 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
|
3244 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
|
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 |
|
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 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
|
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 |
|
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 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
|
3251 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
|
3252 { |
|
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
|
3253 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>
parents:
9987
diff
changeset
|
3254 |
|
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
|
3255 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>
parents:
9987
diff
changeset
|
3256 |
|
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
|
3257 bzero(nfsuiop, sizeof (nfs_xuio_t)); |
|
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
|
3258 nfsuiop->nu_vp = 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
|
3259 |
|
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
|
3260 /* |
|
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
|
3261 * 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>
parents:
9987
diff
changeset
|
3262 * if multiple mblks refer to multiple iov's. |
|
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
|
3263 * This is done in uio_to_mblk(). |
|
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
|
3264 */ |
|
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
|
3265 |
|
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
|
3266 nfsuiop->nu_ref = 1; |
|
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
|
3267 |
|
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
|
3268 nfsuiop->nu_frtn.free_func = rfs_free_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
|
3269 nfsuiop->nu_frtn.free_arg = (char *)nfsuiop; |
|
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
|
3270 |
|
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
|
3271 nfsuiop->nu_uio.xu_type = UIOTYPE_ZEROCOPY; |
|
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
|
3272 |
|
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
|
3273 return (&nfsuiop->nu_uio); |
|
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
|
3274 } |
|
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
|
3275 |
|
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
|
3276 mblk_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
|
3277 uio_to_mblk(uio_t *uiop) |
|
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
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|
3278 { |
|
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
|
3279 struct iovec *iovp; |
|
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
|
3280 int i; |
|
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
|
3281 mblk_t *mp, *mp1; |
|
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
|
3282 nfs_xuio_t *nfsuiop = (nfs_xuio_t *)uiop; |
|
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
|
3283 |
|
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
|
3284 if (uiop->uio_iovcnt == 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
|
3285 return (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
|
3286 |
|
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
|
3287 iovp = uiop->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
|
3288 mp = mp1 = esballoca((uchar_t *)iovp->iov_base, iovp->iov_len, |
|
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
|
3289 BPRI_MED, &nfsuiop->nu_frtn); |
|
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
|
3290 ASSERT(mp != 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
|
3291 |
|
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
|
3292 mp->b_wptr += iovp->iov_len; |
|
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
|
3293 mp->b_datap->db_type = M_DATA; |
|
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
|
3294 |
|
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
|
3295 for (i = 1; i < uiop->uio_iovcnt; i++) { |
|
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
|
3296 iovp = (uiop->uio_iov + i); |
|
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
|
3297 |
|
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
|
3298 mp1->b_cont = esballoca( |
|
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
|
3299 (uchar_t *)iovp->iov_base, iovp->iov_len, BPRI_MED, |
|
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
|
3300 &nfsuiop->nu_frtn); |
|
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
|
3301 |
|
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
|
3302 mp1 = mp1->b_cont; |
|
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
|
3303 ASSERT(mp1 != NULL); |
|
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
|
3304 mp1->b_wptr += iovp->iov_len; |
|
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
|
3305 mp1->b_datap->db_type = M_DATA; |
|
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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changeset
|
3306 } |
|
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
|
3307 |
|
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
|
3308 nfsuiop->nu_ref = uiop->uio_iovcnt; |
|
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
|
3309 |
|
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
|
3310 return (mp); |
|
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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changeset
|
3311 } |
|
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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changeset
|
3312 |
|
14028
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3313 /* |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3314 * Allocate memory to hold data for a read request of len bytes. |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3315 * |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3316 * We don't allocate buffers greater than kmem_max_cached in size to avoid |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3317 * allocating memory from the kmem_oversized arena. If we allocate oversized |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3318 * buffers, we incur heavy cross-call activity when freeing these large buffers |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3319 * in the TCP receive path. Note that we can't set b_wptr here since the |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3320 * length of the data returned may differ from the length requested when |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
Sebastien Roy <seb@delphix.com>
parents:
13985
diff
changeset
|
3321 * reading the end of a file; we set b_wptr in rfs_rndup_mblks() once the |
|
bcbb822da4dd
3630 NFS server should not allocate oversized buffers
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|
3322 * length of the read is known. |
|
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|
3323 */ |
|
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|
3324 mblk_t * |
|
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diff
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|
3325 rfs_read_alloc(uint_t len, struct iovec **iov, int *iovcnt) |
|
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|
3326 { |
|
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diff
changeset
|
3327 struct iovec *iovarr; |
|
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|
3328 mblk_t *mp, **mpp = ∓ |
|
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|
3329 size_t mpsize; |
|
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|
3330 uint_t remain = len; |
|
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|
3331 int i, err = 0; |
|
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3630 NFS server should not allocate oversized buffers
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|
3332 |
|
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|
3333 *iovcnt = howmany(len, kmem_max_cached); |
|
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|
3334 |
|
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|
3335 iovarr = kmem_alloc(*iovcnt * sizeof (struct iovec), KM_SLEEP); |
|
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|
3336 *iov = iovarr; |
|
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|
3337 |
|
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changeset
|
3338 for (i = 0; i < *iovcnt; remain -= mpsize, i++) { |
|
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3630 NFS server should not allocate oversized buffers
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changeset
|
3339 ASSERT(remain <= len); |
|
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3630 NFS server should not allocate oversized buffers
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diff
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|
3340 /* |
|
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|
3341 * We roundup the size we allocate to a multiple of |
|
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|
3342 * BYTES_PER_XDR_UNIT (4 bytes) so that the call to |
|
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changeset
|
3343 * xdrmblk_putmblk() never fails. |
|
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|
3344 */ |
|
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diff
changeset
|
3345 ASSERT(kmem_max_cached % BYTES_PER_XDR_UNIT == 0); |
|
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changeset
|
3346 mpsize = MIN(kmem_max_cached, remain); |
|
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changeset
|
3347 *mpp = allocb_wait(RNDUP(mpsize), BPRI_MED, STR_NOSIG, &err); |
|
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changeset
|
3348 ASSERT(*mpp != NULL); |
|
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3630 NFS server should not allocate oversized buffers
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|
3349 ASSERT(err == 0); |
|
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3630 NFS server should not allocate oversized buffers
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|
3350 |
|
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changeset
|
3351 iovarr[i].iov_base = (caddr_t)(*mpp)->b_rptr; |
|
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|
3352 iovarr[i].iov_len = mpsize; |
|
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|
3353 mpp = &(*mpp)->b_cont; |
|
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|
3354 } |
|
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|
3355 return (mp); |
|
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|
3356 } |
|
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changeset
|
3357 |
|
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|
3358 void |
|
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|
3359 rfs_rndup_mblks(mblk_t *mp, uint_t len, int buf_loaned) |
|
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|
3360 { |
|
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|
3361 int i; |
|
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|
3362 int alloc_err = 0; |
|
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|
3363 mblk_t *rmp; |
|
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|
3364 uint_t mpsize, remainder; |
|
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|
3365 |
|
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changeset
|
3366 remainder = P2NPHASE(len, BYTES_PER_XDR_UNIT); |
|
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|
3367 |
|
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|
3368 /* |
|
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|
3369 * Non copy-reduction case. This function assumes that blocks were |
|
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changeset
|
3370 * allocated in multiples of BYTES_PER_XDR_UNIT bytes, which makes this |
|
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changeset
|
3371 * padding safe without bounds checking. |
|
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diff
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|
3372 */ |
|
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changeset
|
3373 if (!buf_loaned) { |
|
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diff
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|
3374 /* |
|
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diff
changeset
|
3375 * Set the size of each mblk in the chain until we've consumed |
|
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|
3376 * the specified length for all but the last one. |
|
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|
3377 */ |
|
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changeset
|
3378 while ((mpsize = MBLKSIZE(mp)) < len) { |
|
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diff
changeset
|
3379 ASSERT(mpsize % BYTES_PER_XDR_UNIT == 0); |
|
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|
3380 mp->b_wptr += mpsize; |
|
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|
3381 len -= mpsize; |
|
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changeset
|
3382 mp = mp->b_cont; |
|
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|
3383 ASSERT(mp != NULL); |
|
bcbb822da4dd
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Sebastien Roy <seb@delphix.com>
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diff
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|
3384 } |
|
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3630 NFS server should not allocate oversized buffers
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diff
changeset
|
3385 |
|
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diff
changeset
|
3386 ASSERT(len + remainder <= mpsize); |
|
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diff
changeset
|
3387 mp->b_wptr += len; |
|
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|
3388 for (i = 0; i < remainder; i++) |
|
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3630 NFS server should not allocate oversized buffers
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diff
changeset
|
3389 *mp->b_wptr++ = '\0'; |
|
11539
10d35fc3d7fd
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parents:
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diff
changeset
|
3390 return; |
|
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chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
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diff
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|
3391 } |
|
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
|
3392 |
|
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diff
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|
3393 /* |
|
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changeset
|
3394 * No remainder mblk required. |
|
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diff
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|
3395 */ |
|
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|
3396 if (remainder == 0) |
|
11539
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6873106 Need a mechanism to share buffers between fs modules
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diff
changeset
|
3397 return; |
|
10d35fc3d7fd
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changeset
|
3398 |
|
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diff
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|
3399 /* |
|
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diff
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|
3400 * Get to the last mblk in the chain. |
|
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diff
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|
3401 */ |
|
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|
3402 while (mp->b_cont != NULL) |
|
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|
3403 mp = mp->b_cont; |
|
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changeset
|
3404 |
|
10d35fc3d7fd
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|
3405 /* |
|
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|
3406 * In case of copy-reduction mblks, the size of the mblks are fixed |
|
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|
3407 * and are of the size of the loaned buffers. Allocate a remainder |
|
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|
3408 * mblk and chain it to the data buffers. This is sub-optimal, but not |
|
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|
3409 * expected to happen commonly. |
|
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|
3410 */ |
|
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changeset
|
3411 rmp = allocb_wait(remainder, BPRI_MED, STR_NOSIG, &alloc_err); |
|
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|
3412 ASSERT(rmp != NULL); |
|
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6873106 Need a mechanism to share buffers between fs modules
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|
3413 ASSERT(alloc_err == 0); |
|
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changeset
|
3414 |
|
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changeset
|
3415 for (i = 0; i < remainder; i++) |
|
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|
3416 *rmp->b_wptr++ = '\0'; |
|
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
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changeset
|
3417 |
|
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changeset
|
3418 rmp->b_datap->db_type = M_DATA; |
|
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changeset
|
3419 mp->b_cont = rmp; |
|
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|
3420 } |