Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/nfs/nfs_server.c @ 2140:043bd360aabc
6417056 nfssrv should use doors/xdr as its IPC mech to mountd(1m)
| author | rmesta |
|---|---|
| date | Wed, 07 Jun 2006 09:06:06 -0700 |
| parents | a29bc457bcb9 |
| children | ffba0dc9ebeb |
| 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 /* | |
| 1232 | 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. |
| 0 | 23 * Use is subject to license terms. |
| 24 */ | |
| 25 | |
| 26 /* | |
| 27 * Copyright (c) 1983,1984,1985,1986,1987,1988,1989 AT&T. | |
| 28 * All rights reserved. | |
| 29 * Use is subject to license terms. | |
| 30 */ | |
| 31 | |
| 32 #pragma ident "%Z%%M% %I% %E% SMI" | |
| 33 | |
| 34 #include <sys/param.h> | |
| 35 #include <sys/types.h> | |
| 36 #include <sys/systm.h> | |
| 37 #include <sys/cred.h> | |
| 38 #include <sys/proc.h> | |
| 39 #include <sys/user.h> | |
| 40 #include <sys/buf.h> | |
| 41 #include <sys/vfs.h> | |
| 42 #include <sys/vnode.h> | |
| 43 #include <sys/pathname.h> | |
| 44 #include <sys/uio.h> | |
| 45 #include <sys/file.h> | |
| 46 #include <sys/stat.h> | |
| 47 #include <sys/errno.h> | |
| 48 #include <sys/socket.h> | |
| 49 #include <sys/sysmacros.h> | |
| 50 #include <sys/siginfo.h> | |
| 51 #include <sys/tiuser.h> | |
| 52 #include <sys/statvfs.h> | |
| 53 #include <sys/stream.h> | |
| 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> | |
| 75 | |
| 76 #include <nfs/nfs.h> | |
| 77 #include <nfs/export.h> | |
| 78 #include <nfs/nfssys.h> | |
| 79 #include <nfs/nfs_clnt.h> | |
| 80 #include <nfs/nfs_acl.h> | |
| 81 #include <nfs/nfs_log.h> | |
| 82 #include <nfs/lm.h> | |
| 74 | 83 #include <nfs/nfs_dispatch.h> |
| 84 #include <nfs/nfs4_drc.h> | |
| 0 | 85 |
| 86 #include <sys/modctl.h> | |
| 87 #include <sys/cladm.h> | |
| 88 #include <sys/clconf.h> | |
| 89 | |
| 90 #define MAXHOST 32 | |
| 91 const char *kinet_ntop6(uchar_t *, char *, size_t); | |
| 92 | |
| 93 /* | |
| 94 * Module linkage information. | |
| 95 */ | |
| 96 | |
| 97 static struct modlmisc modlmisc = { | |
| 98 &mod_miscops, "NFS server module" | |
| 99 }; | |
| 100 | |
| 101 static struct modlinkage modlinkage = { | |
| 102 MODREV_1, (void *)&modlmisc, NULL | |
| 103 }; | |
| 104 | |
| 105 char _depends_on[] = "misc/klmmod"; | |
| 106 | |
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107 /* for testing RG failover code path on non-Cluster system */ |
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108 int hanfsv4_force = 0; |
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109 |
| 0 | 110 int |
| 111 _init(void) | |
| 112 { | |
| 113 int status; | |
| 114 | |
| 115 if ((status = nfs_srvinit()) != 0) { | |
| 116 cmn_err(CE_WARN, "_init: nfs_srvinit failed"); | |
| 117 return (status); | |
| 118 } | |
| 119 | |
| 120 status = mod_install((struct modlinkage *)&modlinkage); | |
| 121 if (status != 0) { | |
| 122 /* | |
| 123 * Could not load module, cleanup previous | |
| 124 * initialization work. | |
| 125 */ | |
| 126 nfs_srvfini(); | |
| 127 } | |
| 128 | |
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129 /* |
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130 * Initialise some placeholders for nfssys() calls. These have |
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131 * to be declared by the nfs module, since that handles nfssys() |
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132 * calls - also used by NFS clients - but are provided by this |
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133 * nfssrv module. These also then serve as confirmation to the |
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134 * relevant code in nfs that nfssrv has been loaded, as they're |
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135 * initially NULL. |
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136 */ |
| 0 | 137 nfs_srv_quiesce_func = nfs_srv_quiesce_all; |
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138 nfs_srv_dss_func = rfs4_dss_setpaths; |
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139 |
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140 /* setup DSS paths here; must be done before initial server startup */ |
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141 rfs4_dss_paths = rfs4_dss_oldpaths = NULL; |
| 0 | 142 |
| 143 return (status); | |
| 144 } | |
| 145 | |
| 146 int | |
| 147 _fini() | |
| 148 { | |
| 149 return (EBUSY); | |
| 150 } | |
| 151 | |
| 152 int | |
| 153 _info(struct modinfo *modinfop) | |
| 154 { | |
| 155 return (mod_info(&modlinkage, modinfop)); | |
| 156 } | |
| 157 | |
| 158 /* | |
| 159 * PUBLICFH_CHECK() checks if the dispatch routine supports | |
| 160 * RPC_PUBLICFH_OK, if the filesystem is exported public, and if the | |
| 161 * incoming request is using the public filehandle. The check duplicates | |
| 162 * the exportmatch() call done in checkexport(), and we should consider | |
| 163 * modifying those routines to avoid the duplication. For now, we optimize | |
| 164 * by calling exportmatch() only after checking that the dispatch routine | |
| 165 * supports RPC_PUBLICFH_OK, and if the filesystem is explicitly exported | |
| 166 * public (i.e., not the placeholder). | |
| 167 */ | |
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168 #define PUBLICFH_CHECK(disp, exi, fsid, xfid) \ |
| 0 | 169 ((disp->dis_flags & RPC_PUBLICFH_OK) && \ |
| 170 ((exi->exi_export.ex_flags & EX_PUBLIC) || \ | |
| 171 (exi == exi_public && exportmatch(exi_root, \ | |
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172 fsid, xfid)))) |
| 0 | 173 |
| 174 static void nfs_srv_shutdown_all(int); | |
| 175 static void rfs4_server_start(int); | |
| 176 static void nullfree(void); | |
| 177 static void rfs_dispatch(struct svc_req *, SVCXPRT *); | |
| 178 static void acl_dispatch(struct svc_req *, SVCXPRT *); | |
| 179 static void common_dispatch(struct svc_req *, SVCXPRT *, | |
| 180 rpcvers_t, rpcvers_t, char *, | |
| 181 struct rpc_disptable *); | |
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182 static void hanfsv4_failover(void); |
| 0 | 183 static int checkauth(struct exportinfo *, struct svc_req *, cred_t *, int, |
| 184 bool_t); | |
| 185 static char *client_name(struct svc_req *req); | |
| 186 static char *client_addr(struct svc_req *req, char *buf); | |
| 187 extern int sec_svc_getcred(struct svc_req *, cred_t *cr, char **, int *); | |
| 188 extern bool_t sec_svc_inrootlist(int, caddr_t, int, caddr_t *); | |
| 189 | |
| 190 #define NFSLOG_COPY_NETBUF(exi, xprt, nb) { \ | |
| 191 (nb)->maxlen = (xprt)->xp_rtaddr.maxlen; \ | |
| 192 (nb)->len = (xprt)->xp_rtaddr.len; \ | |
| 193 (nb)->buf = kmem_alloc((nb)->len, KM_SLEEP); \ | |
| 194 bcopy((xprt)->xp_rtaddr.buf, (nb)->buf, (nb)->len); \ | |
| 195 } | |
| 196 | |
| 197 /* | |
| 198 * Public Filehandle common nfs routines | |
| 199 */ | |
| 200 static int MCLpath(char **); | |
| 201 static void URLparse(char *); | |
| 202 | |
| 203 /* | |
| 204 * NFS callout table. | |
| 205 * This table is used by svc_getreq() to dispatch a request with | |
| 206 * a given prog/vers pair to an appropriate service provider | |
| 207 * dispatch routine. | |
| 208 * | |
| 209 * NOTE: ordering is relied upon below when resetting the version min/max | |
| 210 * for NFS_PROGRAM. Careful, if this is ever changed. | |
| 211 */ | |
| 212 static SVC_CALLOUT __nfs_sc_clts[] = { | |
| 213 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
| 214 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
| 215 }; | |
| 216 | |
| 217 static SVC_CALLOUT_TABLE nfs_sct_clts = { | |
| 218 sizeof (__nfs_sc_clts) / sizeof (__nfs_sc_clts[0]), FALSE, | |
| 219 __nfs_sc_clts | |
| 220 }; | |
| 221 | |
| 222 static SVC_CALLOUT __nfs_sc_cots[] = { | |
| 223 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
| 224 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
| 225 }; | |
| 226 | |
| 227 static SVC_CALLOUT_TABLE nfs_sct_cots = { | |
| 228 sizeof (__nfs_sc_cots) / sizeof (__nfs_sc_cots[0]), FALSE, __nfs_sc_cots | |
| 229 }; | |
| 230 | |
| 231 static SVC_CALLOUT __nfs_sc_rdma[] = { | |
| 232 { NFS_PROGRAM, NFS_VERSMIN, NFS_VERSMAX, rfs_dispatch }, | |
| 233 { NFS_ACL_PROGRAM, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, acl_dispatch } | |
| 234 }; | |
| 235 | |
| 236 static SVC_CALLOUT_TABLE nfs_sct_rdma = { | |
| 237 sizeof (__nfs_sc_rdma) / sizeof (__nfs_sc_rdma[0]), FALSE, __nfs_sc_rdma | |
| 238 }; | |
| 239 rpcvers_t nfs_versmin = NFS_VERSMIN_DEFAULT; | |
| 240 rpcvers_t nfs_versmax = NFS_VERSMAX_DEFAULT; | |
| 241 | |
| 242 /* | |
| 243 * Used to track the state of the server so that initialization | |
| 244 * can be done properly. | |
| 245 */ | |
| 246 typedef enum { | |
| 247 NFS_SERVER_STOPPED, /* server state destroyed */ | |
| 248 NFS_SERVER_STOPPING, /* server state being destroyed */ | |
| 249 NFS_SERVER_RUNNING, | |
| 250 NFS_SERVER_QUIESCED, /* server state preserved */ | |
| 251 NFS_SERVER_OFFLINE /* server pool offline */ | |
| 252 } nfs_server_running_t; | |
| 253 | |
| 254 static nfs_server_running_t nfs_server_upordown; | |
| 255 static kmutex_t nfs_server_upordown_lock; | |
| 256 static kcondvar_t nfs_server_upordown_cv; | |
| 257 | |
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258 /* |
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259 * DSS: distributed stable storage |
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260 * lists of all DSS paths: current, and before last warmstart |
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261 */ |
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262 nvlist_t *rfs4_dss_paths, *rfs4_dss_oldpaths; |
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263 |
| 74 | 264 int rfs4_dispatch(struct rpcdisp *, struct svc_req *, SVCXPRT *, char *); |
| 265 | |
| 0 | 266 /* |
| 267 * RDMA wait variables. | |
| 268 */ | |
| 269 static kcondvar_t rdma_wait_cv; | |
| 270 static kmutex_t rdma_wait_mutex; | |
| 271 | |
| 272 /* | |
| 273 * Will be called at the point the server pool is being unregistered | |
| 274 * from the pool list. From that point onwards, the pool is waiting | |
| 275 * to be drained and as such the server state is stale and pertains | |
| 276 * to the old instantiation of the NFS server pool. | |
| 277 */ | |
| 278 void | |
| 279 nfs_srv_offline(void) | |
| 280 { | |
| 281 mutex_enter(&nfs_server_upordown_lock); | |
| 282 if (nfs_server_upordown == NFS_SERVER_RUNNING) { | |
| 283 nfs_server_upordown = NFS_SERVER_OFFLINE; | |
| 284 } | |
| 285 mutex_exit(&nfs_server_upordown_lock); | |
| 286 } | |
| 287 | |
| 288 /* | |
| 289 * Will be called at the point the server pool is being destroyed so | |
| 290 * all transports have been closed and no service threads are in | |
| 291 * existence. | |
| 292 * | |
| 293 * If we quiesce the server, we're shutting it down without destroying the | |
| 294 * server state. This allows it to warm start subsequently. | |
| 295 */ | |
| 296 void | |
| 297 nfs_srv_stop_all(void) | |
| 298 { | |
| 299 int quiesce = 0; | |
| 300 nfs_srv_shutdown_all(quiesce); | |
| 301 } | |
| 302 | |
| 303 /* | |
| 304 * This alternative shutdown routine can be requested via nfssys() | |
| 305 */ | |
| 306 void | |
| 307 nfs_srv_quiesce_all(void) | |
| 308 { | |
| 309 int quiesce = 1; | |
| 310 nfs_srv_shutdown_all(quiesce); | |
| 311 } | |
| 312 | |
| 313 static void | |
| 314 nfs_srv_shutdown_all(int quiesce) { | |
| 315 mutex_enter(&nfs_server_upordown_lock); | |
| 316 if (quiesce) { | |
| 317 if (nfs_server_upordown == NFS_SERVER_RUNNING || | |
| 318 nfs_server_upordown == NFS_SERVER_OFFLINE) { | |
| 319 nfs_server_upordown = NFS_SERVER_QUIESCED; | |
| 320 cv_signal(&nfs_server_upordown_cv); | |
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321 |
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322 /* reset DSS state, for subsequent warm restart */ |
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323 rfs4_dss_numnewpaths = 0; |
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324 rfs4_dss_newpaths = NULL; |
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325 |
| 0 | 326 cmn_err(CE_NOTE, "nfs_server: server is now quiesced; " |
| 327 "NFSv4 state has been preserved"); | |
| 328 } | |
| 329 } else { | |
| 330 if (nfs_server_upordown == NFS_SERVER_OFFLINE) { | |
| 331 nfs_server_upordown = NFS_SERVER_STOPPING; | |
| 332 mutex_exit(&nfs_server_upordown_lock); | |
| 333 rfs4_state_fini(); | |
| 74 | 334 rfs4_fini_drc(nfs4_drc); |
| 0 | 335 mutex_enter(&nfs_server_upordown_lock); |
| 336 nfs_server_upordown = NFS_SERVER_STOPPED; | |
| 337 cv_signal(&nfs_server_upordown_cv); | |
| 338 } | |
| 339 } | |
| 340 mutex_exit(&nfs_server_upordown_lock); | |
| 341 } | |
| 342 | |
| 343 static int | |
| 344 nfs_srv_set_sc_versions(struct file *fp, SVC_CALLOUT_TABLE **sctpp, | |
| 345 rpcvers_t versmin, rpcvers_t versmax) | |
| 346 { | |
| 347 struct strioctl strioc; | |
| 348 struct T_info_ack tinfo; | |
| 349 int error, retval; | |
| 350 | |
| 351 /* | |
| 352 * Find out what type of transport this is. | |
| 353 */ | |
| 354 strioc.ic_cmd = TI_GETINFO; | |
| 355 strioc.ic_timout = -1; | |
| 356 strioc.ic_len = sizeof (tinfo); | |
| 357 strioc.ic_dp = (char *)&tinfo; | |
| 358 tinfo.PRIM_type = T_INFO_REQ; | |
| 359 | |
| 360 error = strioctl(fp->f_vnode, I_STR, (intptr_t)&strioc, 0, K_TO_K, | |
| 361 CRED(), &retval); | |
| 362 if (error || retval) | |
| 363 return (error); | |
| 364 | |
| 365 /* | |
| 366 * Based on our query of the transport type... | |
| 367 * | |
| 368 * Reset the min/max versions based on the caller's request | |
| 369 * NOTE: This assumes that NFS_PROGRAM is first in the array!! | |
| 370 * And the second entry is the NFS_ACL_PROGRAM. | |
| 371 */ | |
| 372 switch (tinfo.SERV_type) { | |
| 373 case T_CLTS: | |
| 374 if (versmax == NFS_V4) | |
| 375 return (EINVAL); | |
| 376 __nfs_sc_clts[0].sc_versmin = versmin; | |
| 377 __nfs_sc_clts[0].sc_versmax = versmax; | |
| 378 __nfs_sc_clts[1].sc_versmin = versmin; | |
| 379 __nfs_sc_clts[1].sc_versmax = versmax; | |
| 380 *sctpp = &nfs_sct_clts; | |
| 381 break; | |
| 382 case T_COTS: | |
| 383 case T_COTS_ORD: | |
| 384 __nfs_sc_cots[0].sc_versmin = versmin; | |
| 385 __nfs_sc_cots[0].sc_versmax = versmax; | |
| 386 /* For the NFS_ACL program, check the max version */ | |
| 387 if (versmax > NFS_ACL_VERSMAX) | |
| 388 versmax = NFS_ACL_VERSMAX; | |
| 389 __nfs_sc_cots[1].sc_versmin = versmin; | |
| 390 __nfs_sc_cots[1].sc_versmax = versmax; | |
| 391 *sctpp = &nfs_sct_cots; | |
| 392 break; | |
| 393 default: | |
| 394 error = EINVAL; | |
| 395 } | |
| 396 | |
| 397 return (error); | |
| 398 } | |
| 399 | |
| 400 /* | |
| 401 * NFS Server system call. | |
| 402 * Does all of the work of running a NFS server. | |
| 403 * uap->fd is the fd of an open transport provider | |
| 404 */ | |
| 405 int | |
| 406 nfs_svc(struct nfs_svc_args *arg, model_t model) | |
| 407 { | |
| 408 file_t *fp; | |
| 409 SVCMASTERXPRT *xprt; | |
| 410 int error; | |
| 411 int readsize; | |
| 412 char buf[KNC_STRSIZE]; | |
| 413 size_t len; | |
| 414 STRUCT_HANDLE(nfs_svc_args, uap); | |
| 415 struct netbuf addrmask; | |
| 416 SVC_CALLOUT_TABLE *sctp = NULL; | |
| 417 | |
| 418 #ifdef lint | |
| 419 model = model; /* STRUCT macros don't always refer to it */ | |
| 420 #endif | |
| 421 | |
| 422 STRUCT_SET_HANDLE(uap, model, arg); | |
| 423 | |
| 424 /* Check privileges in nfssys() */ | |
| 425 | |
| 426 if ((fp = getf(STRUCT_FGET(uap, fd))) == NULL) | |
| 427 return (EBADF); | |
| 428 | |
| 429 /* | |
| 430 * Set read buffer size to rsize | |
| 431 * and add room for RPC headers. | |
| 432 */ | |
| 433 readsize = nfs3tsize() + (RPC_MAXDATASIZE - NFS_MAXDATA); | |
| 434 if (readsize < RPC_MAXDATASIZE) | |
| 435 readsize = RPC_MAXDATASIZE; | |
| 436 | |
| 437 error = copyinstr((const char *)STRUCT_FGETP(uap, netid), buf, | |
| 438 KNC_STRSIZE, &len); | |
| 439 if (error) { | |
| 440 releasef(STRUCT_FGET(uap, fd)); | |
| 441 return (error); | |
| 442 } | |
| 443 | |
| 444 addrmask.len = STRUCT_FGET(uap, addrmask.len); | |
| 445 addrmask.maxlen = STRUCT_FGET(uap, addrmask.maxlen); | |
| 446 addrmask.buf = kmem_alloc(addrmask.maxlen, KM_SLEEP); | |
| 447 error = copyin(STRUCT_FGETP(uap, addrmask.buf), addrmask.buf, | |
| 448 addrmask.len); | |
| 449 if (error) { | |
| 450 releasef(STRUCT_FGET(uap, fd)); | |
| 451 kmem_free(addrmask.buf, addrmask.maxlen); | |
| 452 return (error); | |
| 453 } | |
| 454 | |
| 455 nfs_versmin = STRUCT_FGET(uap, versmin); | |
| 456 nfs_versmax = STRUCT_FGET(uap, versmax); | |
| 457 | |
| 458 /* Double check the vers min/max ranges */ | |
| 459 if ((nfs_versmin > nfs_versmax) || | |
| 460 (nfs_versmin < NFS_VERSMIN) || | |
| 461 (nfs_versmax > NFS_VERSMAX)) { | |
| 462 nfs_versmin = NFS_VERSMIN_DEFAULT; | |
| 463 nfs_versmax = NFS_VERSMAX_DEFAULT; | |
| 464 } | |
| 465 | |
| 466 if (error = | |
| 467 nfs_srv_set_sc_versions(fp, &sctp, nfs_versmin, nfs_versmax)) { | |
| 468 releasef(STRUCT_FGET(uap, fd)); | |
| 469 kmem_free(addrmask.buf, addrmask.maxlen); | |
| 470 return (error); | |
| 471 } | |
| 472 | |
| 473 /* Initialize nfsv4 server */ | |
| 474 if (nfs_versmax == (rpcvers_t)NFS_V4) | |
| 475 rfs4_server_start(STRUCT_FGET(uap, delegation)); | |
| 476 | |
| 477 /* Create a transport handle. */ | |
| 478 error = svc_tli_kcreate(fp, readsize, buf, &addrmask, &xprt, | |
| 479 sctp, NULL, NFS_SVCPOOL_ID, TRUE); | |
| 480 | |
| 481 if (error) | |
| 482 kmem_free(addrmask.buf, addrmask.maxlen); | |
| 483 | |
| 484 releasef(STRUCT_FGET(uap, fd)); | |
| 485 | |
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486 /* HA-NFSv4: save the cluster nodeid */ |
| 0 | 487 if (cluster_bootflags & CLUSTER_BOOTED) |
| 488 lm_global_nlmid = clconf_get_nodeid(); | |
| 489 | |
| 490 return (error); | |
| 491 } | |
| 492 | |
| 493 static void | |
| 494 rfs4_server_start(int nfs4_srv_delegation) | |
| 495 { | |
| 496 /* | |
| 497 * Determine if the server has previously been "started" and | |
| 498 * if not, do the per instance initialization | |
| 499 */ | |
| 500 mutex_enter(&nfs_server_upordown_lock); | |
| 501 | |
| 502 if (nfs_server_upordown != NFS_SERVER_RUNNING) { | |
| 503 /* Do we need to stop and wait on the previous server? */ | |
| 504 while (nfs_server_upordown == NFS_SERVER_STOPPING || | |
| 505 nfs_server_upordown == NFS_SERVER_OFFLINE) | |
| 506 cv_wait(&nfs_server_upordown_cv, | |
| 507 &nfs_server_upordown_lock); | |
| 508 | |
| 509 if (nfs_server_upordown != NFS_SERVER_RUNNING) { | |
| 510 (void) svc_pool_control(NFS_SVCPOOL_ID, | |
| 511 SVCPSET_UNREGISTER_PROC, (void *)&nfs_srv_offline); | |
| 512 (void) svc_pool_control(NFS_SVCPOOL_ID, | |
| 513 SVCPSET_SHUTDOWN_PROC, (void *)&nfs_srv_stop_all); | |
| 514 | |
| 515 /* is this an nfsd warm start? */ | |
| 516 if (nfs_server_upordown == NFS_SERVER_QUIESCED) { | |
| 517 cmn_err(CE_NOTE, "nfs_server: " | |
| 518 "server was previously quiesced; " | |
| 519 "existing NFSv4 state will be re-used"); | |
| 520 | |
| 521 /* | |
|
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522 * HA-NFSv4: this is also the signal |
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523 * that a Resource Group failover has |
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524 * occurred. |
| 0 | 525 */ |
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526 if (cluster_bootflags & CLUSTER_BOOTED || |
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527 hanfsv4_force) |
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528 hanfsv4_failover(); |
| 0 | 529 } else { |
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530 /* cold start */ |
| 0 | 531 rfs4_state_init(); |
| 74 | 532 nfs4_drc = rfs4_init_drc(nfs4_drc_max, |
| 533 nfs4_drc_hash, | |
| 534 nfs4_drc_lifetime); | |
| 0 | 535 } |
| 536 | |
| 537 /* | |
| 538 * Check to see if delegation is to be | |
| 539 * enabled at the server | |
| 540 */ | |
| 541 if (nfs4_srv_delegation != FALSE) | |
| 542 rfs4_set_deleg_policy(SRV_NORMAL_DELEGATE); | |
| 543 | |
| 544 nfs_server_upordown = NFS_SERVER_RUNNING; | |
| 545 } | |
| 546 cv_signal(&nfs_server_upordown_cv); | |
| 547 } | |
| 548 mutex_exit(&nfs_server_upordown_lock); | |
| 549 } | |
| 550 | |
| 551 /* | |
| 552 * If RDMA device available, | |
| 553 * start RDMA listener. | |
| 554 */ | |
| 555 int | |
| 556 rdma_start(struct rdma_svc_args *rsa) | |
| 557 { | |
| 558 int error; | |
| 559 rdma_xprt_group_t started_rdma_xprts; | |
| 560 | |
| 561 /* Double check the vers min/max ranges */ | |
| 562 if ((rsa->nfs_versmin > rsa->nfs_versmax) || | |
| 563 (rsa->nfs_versmin < NFS_VERSMIN) || | |
| 564 (rsa->nfs_versmax > NFS_VERSMAX)) { | |
| 565 rsa->nfs_versmin = NFS_VERSMIN_DEFAULT; | |
| 566 rsa->nfs_versmax = NFS_VERSMAX_DEFAULT; | |
| 567 } | |
| 568 nfs_versmin = rsa->nfs_versmin; | |
| 569 nfs_versmax = rsa->nfs_versmax; | |
| 570 | |
| 571 /* Set the versions in the callout table */ | |
| 572 __nfs_sc_rdma[0].sc_versmin = rsa->nfs_versmin; | |
| 573 __nfs_sc_rdma[0].sc_versmax = rsa->nfs_versmax; | |
| 574 /* For the NFS_ACL program, check the max version */ | |
| 575 __nfs_sc_rdma[1].sc_versmin = rsa->nfs_versmin; | |
| 576 if (rsa->nfs_versmax > NFS_ACL_VERSMAX) | |
| 577 __nfs_sc_rdma[1].sc_versmax = NFS_ACL_VERSMAX; | |
| 578 else | |
| 579 __nfs_sc_rdma[1].sc_versmax = rsa->nfs_versmax; | |
| 580 | |
| 581 /* Initialize nfsv4 server */ | |
| 582 if (rsa->nfs_versmax == (rpcvers_t)NFS_V4) | |
| 583 rfs4_server_start(rsa->delegation); | |
| 584 | |
| 585 started_rdma_xprts.rtg_count = 0; | |
| 586 started_rdma_xprts.rtg_listhead = NULL; | |
| 587 started_rdma_xprts.rtg_poolid = rsa->poolid; | |
| 588 error = svc_rdma_kcreate(rsa->netid, &nfs_sct_rdma, rsa->poolid, | |
| 589 &started_rdma_xprts); | |
| 590 | |
| 591 if (error == 0) { | |
| 592 mutex_enter(&rdma_wait_mutex); | |
| 593 if (!cv_wait_sig(&rdma_wait_cv, &rdma_wait_mutex)) { | |
| 594 rdma_stop(started_rdma_xprts); | |
| 595 } | |
| 596 mutex_exit(&rdma_wait_mutex); | |
| 597 } | |
| 598 | |
| 599 return (error); | |
| 600 } | |
| 601 | |
| 602 /* ARGSUSED */ | |
| 74 | 603 void |
| 0 | 604 rpc_null(caddr_t *argp, caddr_t *resp) |
| 605 { | |
| 606 } | |
| 607 | |
| 608 /* ARGSUSED */ | |
| 609 static void | |
| 610 rfs_error(caddr_t *argp, caddr_t *resp) | |
| 611 { | |
| 612 /* return (EOPNOTSUPP); */ | |
| 613 } | |
| 614 | |
| 615 static void | |
| 616 nullfree(void) | |
| 617 { | |
| 618 } | |
| 619 | |
| 620 static char *rfscallnames_v2[] = { | |
| 621 "RFS2_NULL", | |
| 622 "RFS2_GETATTR", | |
| 623 "RFS2_SETATTR", | |
| 624 "RFS2_ROOT", | |
| 625 "RFS2_LOOKUP", | |
| 626 "RFS2_READLINK", | |
| 627 "RFS2_READ", | |
| 628 "RFS2_WRITECACHE", | |
| 629 "RFS2_WRITE", | |
| 630 "RFS2_CREATE", | |
| 631 "RFS2_REMOVE", | |
| 632 "RFS2_RENAME", | |
| 633 "RFS2_LINK", | |
| 634 "RFS2_SYMLINK", | |
| 635 "RFS2_MKDIR", | |
| 636 "RFS2_RMDIR", | |
| 637 "RFS2_READDIR", | |
| 638 "RFS2_STATFS" | |
| 639 }; | |
| 640 | |
| 641 static struct rpcdisp rfsdisptab_v2[] = { | |
| 642 /* | |
| 643 * NFS VERSION 2 | |
| 644 */ | |
| 645 | |
| 646 /* RFS_NULL = 0 */ | |
| 647 {rpc_null, | |
| 648 xdr_void, NULL_xdrproc_t, 0, | |
| 649 xdr_void, NULL_xdrproc_t, 0, | |
| 650 nullfree, RPC_IDEMPOTENT, | |
| 74 | 651 0}, |
| 0 | 652 |
| 653 /* RFS_GETATTR = 1 */ | |
| 654 {rfs_getattr, | |
| 655 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
| 656 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
| 657 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
| 74 | 658 rfs_getattr_getfh}, |
| 0 | 659 |
| 660 /* RFS_SETATTR = 2 */ | |
| 661 {rfs_setattr, | |
| 662 xdr_saargs, NULL_xdrproc_t, sizeof (struct nfssaargs), | |
| 663 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
| 664 nullfree, RPC_MAPRESP, | |
| 74 | 665 rfs_setattr_getfh}, |
| 0 | 666 |
| 667 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
| 668 {rfs_error, | |
| 669 xdr_void, NULL_xdrproc_t, 0, | |
| 670 xdr_void, NULL_xdrproc_t, 0, | |
| 671 nullfree, RPC_IDEMPOTENT, | |
| 74 | 672 0}, |
| 0 | 673 |
| 674 /* RFS_LOOKUP = 4 */ | |
| 675 {rfs_lookup, | |
| 676 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
| 677 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
| 678 nullfree, RPC_IDEMPOTENT|RPC_MAPRESP|RPC_PUBLICFH_OK, | |
| 74 | 679 rfs_lookup_getfh}, |
| 0 | 680 |
| 681 /* RFS_READLINK = 5 */ | |
| 682 {rfs_readlink, | |
| 683 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
| 684 xdr_rdlnres, NULL_xdrproc_t, sizeof (struct nfsrdlnres), | |
| 685 rfs_rlfree, RPC_IDEMPOTENT, | |
| 74 | 686 rfs_readlink_getfh}, |
| 0 | 687 |
| 688 /* RFS_READ = 6 */ | |
| 689 {rfs_read, | |
| 690 xdr_readargs, NULL_xdrproc_t, sizeof (struct nfsreadargs), | |
| 691 xdr_rdresult, NULL_xdrproc_t, sizeof (struct nfsrdresult), | |
| 692 rfs_rdfree, RPC_IDEMPOTENT, | |
| 74 | 693 rfs_read_getfh}, |
| 0 | 694 |
| 695 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
| 696 {rfs_error, | |
| 697 xdr_void, NULL_xdrproc_t, 0, | |
| 698 xdr_void, NULL_xdrproc_t, 0, | |
| 699 nullfree, RPC_IDEMPOTENT, | |
| 74 | 700 0}, |
| 0 | 701 |
| 702 /* RFS_WRITE = 8 */ | |
| 703 {rfs_write, | |
| 704 xdr_writeargs, NULL_xdrproc_t, sizeof (struct nfswriteargs), | |
| 705 xdr_attrstat, xdr_fastattrstat, sizeof (struct nfsattrstat), | |
| 706 nullfree, RPC_MAPRESP, | |
| 74 | 707 rfs_write_getfh}, |
| 0 | 708 |
| 709 /* RFS_CREATE = 9 */ | |
| 710 {rfs_create, | |
| 711 xdr_creatargs, NULL_xdrproc_t, sizeof (struct nfscreatargs), | |
| 712 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
| 713 nullfree, RPC_MAPRESP, | |
| 74 | 714 rfs_create_getfh}, |
| 0 | 715 |
| 716 /* RFS_REMOVE = 10 */ | |
| 717 {rfs_remove, | |
| 718 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
| 719 #ifdef _LITTLE_ENDIAN | |
| 720 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 721 #else | |
| 722 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 723 #endif | |
| 724 nullfree, RPC_MAPRESP, | |
| 74 | 725 rfs_remove_getfh}, |
| 0 | 726 |
| 727 /* RFS_RENAME = 11 */ | |
| 728 {rfs_rename, | |
| 729 xdr_rnmargs, NULL_xdrproc_t, sizeof (struct nfsrnmargs), | |
| 730 #ifdef _LITTLE_ENDIAN | |
| 731 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 732 #else | |
| 733 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 734 #endif | |
| 735 nullfree, RPC_MAPRESP, | |
| 74 | 736 rfs_rename_getfh}, |
| 0 | 737 |
| 738 /* RFS_LINK = 12 */ | |
| 739 {rfs_link, | |
| 740 xdr_linkargs, NULL_xdrproc_t, sizeof (struct nfslinkargs), | |
| 741 #ifdef _LITTLE_ENDIAN | |
| 742 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 743 #else | |
| 744 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 745 #endif | |
| 746 nullfree, RPC_MAPRESP, | |
| 74 | 747 rfs_link_getfh}, |
| 0 | 748 |
| 749 /* RFS_SYMLINK = 13 */ | |
| 750 {rfs_symlink, | |
| 751 xdr_slargs, NULL_xdrproc_t, sizeof (struct nfsslargs), | |
| 752 #ifdef _LITTLE_ENDIAN | |
| 753 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 754 #else | |
| 755 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 756 #endif | |
| 757 nullfree, RPC_MAPRESP, | |
| 74 | 758 rfs_symlink_getfh}, |
| 0 | 759 |
| 760 /* RFS_MKDIR = 14 */ | |
| 761 {rfs_mkdir, | |
| 762 xdr_creatargs, NULL_xdrproc_t, sizeof (struct nfscreatargs), | |
| 763 xdr_diropres, xdr_fastdiropres, sizeof (struct nfsdiropres), | |
| 764 nullfree, RPC_MAPRESP, | |
| 74 | 765 rfs_mkdir_getfh}, |
| 0 | 766 |
| 767 /* RFS_RMDIR = 15 */ | |
| 768 {rfs_rmdir, | |
| 769 xdr_diropargs, NULL_xdrproc_t, sizeof (struct nfsdiropargs), | |
| 770 #ifdef _LITTLE_ENDIAN | |
| 771 xdr_enum, xdr_fastenum, sizeof (enum nfsstat), | |
| 772 #else | |
| 773 xdr_enum, NULL_xdrproc_t, sizeof (enum nfsstat), | |
| 774 #endif | |
| 775 nullfree, RPC_MAPRESP, | |
| 74 | 776 rfs_rmdir_getfh}, |
| 0 | 777 |
| 778 /* RFS_READDIR = 16 */ | |
| 779 {rfs_readdir, | |
| 780 xdr_rddirargs, NULL_xdrproc_t, sizeof (struct nfsrddirargs), | |
| 781 xdr_putrddirres, NULL_xdrproc_t, sizeof (struct nfsrddirres), | |
| 782 rfs_rddirfree, RPC_IDEMPOTENT, | |
| 74 | 783 rfs_readdir_getfh}, |
| 0 | 784 |
| 785 /* RFS_STATFS = 17 */ | |
| 786 {rfs_statfs, | |
| 787 xdr_fhandle, xdr_fastfhandle, sizeof (fhandle_t), | |
| 788 xdr_statfs, xdr_faststatfs, sizeof (struct nfsstatfs), | |
| 789 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
| 74 | 790 rfs_statfs_getfh}, |
| 0 | 791 }; |
| 792 | |
| 793 static char *rfscallnames_v3[] = { | |
| 794 "RFS3_NULL", | |
| 795 "RFS3_GETATTR", | |
| 796 "RFS3_SETATTR", | |
| 797 "RFS3_LOOKUP", | |
| 798 "RFS3_ACCESS", | |
| 799 "RFS3_READLINK", | |
| 800 "RFS3_READ", | |
| 801 "RFS3_WRITE", | |
| 802 "RFS3_CREATE", | |
| 803 "RFS3_MKDIR", | |
| 804 "RFS3_SYMLINK", | |
| 805 "RFS3_MKNOD", | |
| 806 "RFS3_REMOVE", | |
| 807 "RFS3_RMDIR", | |
| 808 "RFS3_RENAME", | |
| 809 "RFS3_LINK", | |
| 810 "RFS3_READDIR", | |
| 811 "RFS3_READDIRPLUS", | |
| 812 "RFS3_FSSTAT", | |
| 813 "RFS3_FSINFO", | |
| 814 "RFS3_PATHCONF", | |
| 815 "RFS3_COMMIT" | |
| 816 }; | |
| 817 | |
| 818 static struct rpcdisp rfsdisptab_v3[] = { | |
| 819 /* | |
| 820 * NFS VERSION 3 | |
| 821 */ | |
| 822 | |
| 823 /* RFS_NULL = 0 */ | |
| 824 {rpc_null, | |
| 825 xdr_void, NULL_xdrproc_t, 0, | |
| 826 xdr_void, NULL_xdrproc_t, 0, | |
| 827 nullfree, RPC_IDEMPOTENT, | |
| 74 | 828 0}, |
| 0 | 829 |
| 830 /* RFS3_GETATTR = 1 */ | |
| 831 {rfs3_getattr, | |
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832 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (GETATTR3args), |
| 0 | 833 xdr_GETATTR3res, NULL_xdrproc_t, sizeof (GETATTR3res), |
| 834 nullfree, (RPC_IDEMPOTENT | RPC_ALLOWANON), | |
| 74 | 835 rfs3_getattr_getfh}, |
| 0 | 836 |
| 837 /* RFS3_SETATTR = 2 */ | |
| 838 {rfs3_setattr, | |
| 839 xdr_SETATTR3args, NULL_xdrproc_t, sizeof (SETATTR3args), | |
| 840 xdr_SETATTR3res, NULL_xdrproc_t, sizeof (SETATTR3res), | |
| 841 nullfree, 0, | |
| 74 | 842 rfs3_setattr_getfh}, |
| 0 | 843 |
| 844 /* RFS3_LOOKUP = 3 */ | |
| 845 {rfs3_lookup, | |
| 846 xdr_diropargs3, NULL_xdrproc_t, sizeof (LOOKUP3args), | |
| 847 xdr_LOOKUP3res, NULL_xdrproc_t, sizeof (LOOKUP3res), | |
| 848 nullfree, (RPC_IDEMPOTENT | RPC_PUBLICFH_OK), | |
| 74 | 849 rfs3_lookup_getfh}, |
| 0 | 850 |
| 851 /* RFS3_ACCESS = 4 */ | |
| 852 {rfs3_access, | |
| 853 xdr_ACCESS3args, NULL_xdrproc_t, sizeof (ACCESS3args), | |
| 854 xdr_ACCESS3res, NULL_xdrproc_t, sizeof (ACCESS3res), | |
| 855 nullfree, RPC_IDEMPOTENT, | |
| 74 | 856 rfs3_access_getfh}, |
| 0 | 857 |
| 858 /* RFS3_READLINK = 5 */ | |
| 859 {rfs3_readlink, | |
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860 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (READLINK3args), |
| 0 | 861 xdr_READLINK3res, NULL_xdrproc_t, sizeof (READLINK3res), |
| 862 rfs3_readlink_free, RPC_IDEMPOTENT, | |
| 74 | 863 rfs3_readlink_getfh}, |
| 0 | 864 |
| 865 /* RFS3_READ = 6 */ | |
| 866 {rfs3_read, | |
| 867 xdr_READ3args, NULL_xdrproc_t, sizeof (READ3args), | |
| 868 xdr_READ3res, NULL_xdrproc_t, sizeof (READ3res), | |
| 869 rfs3_read_free, RPC_IDEMPOTENT, | |
| 74 | 870 rfs3_read_getfh}, |
| 0 | 871 |
| 872 /* RFS3_WRITE = 7 */ | |
| 873 {rfs3_write, | |
| 874 xdr_WRITE3args, NULL_xdrproc_t, sizeof (WRITE3args), | |
| 875 xdr_WRITE3res, NULL_xdrproc_t, sizeof (WRITE3res), | |
| 876 nullfree, 0, | |
| 74 | 877 rfs3_write_getfh}, |
| 0 | 878 |
| 879 /* RFS3_CREATE = 8 */ | |
| 880 {rfs3_create, | |
| 881 xdr_CREATE3args, NULL_xdrproc_t, sizeof (CREATE3args), | |
| 882 xdr_CREATE3res, NULL_xdrproc_t, sizeof (CREATE3res), | |
| 883 nullfree, 0, | |
| 74 | 884 rfs3_create_getfh}, |
| 0 | 885 |
| 886 /* RFS3_MKDIR = 9 */ | |
| 887 {rfs3_mkdir, | |
| 888 xdr_MKDIR3args, NULL_xdrproc_t, sizeof (MKDIR3args), | |
| 889 xdr_MKDIR3res, NULL_xdrproc_t, sizeof (MKDIR3res), | |
| 890 nullfree, 0, | |
| 74 | 891 rfs3_mkdir_getfh}, |
| 0 | 892 |
| 893 /* RFS3_SYMLINK = 10 */ | |
| 894 {rfs3_symlink, | |
| 895 xdr_SYMLINK3args, NULL_xdrproc_t, sizeof (SYMLINK3args), | |
| 896 xdr_SYMLINK3res, NULL_xdrproc_t, sizeof (SYMLINK3res), | |
| 897 nullfree, 0, | |
| 74 | 898 rfs3_symlink_getfh}, |
| 0 | 899 |
| 900 /* RFS3_MKNOD = 11 */ | |
| 901 {rfs3_mknod, | |
| 902 xdr_MKNOD3args, NULL_xdrproc_t, sizeof (MKNOD3args), | |
| 903 xdr_MKNOD3res, NULL_xdrproc_t, sizeof (MKNOD3res), | |
| 904 nullfree, 0, | |
| 74 | 905 rfs3_mknod_getfh}, |
| 0 | 906 |
| 907 /* RFS3_REMOVE = 12 */ | |
| 908 {rfs3_remove, | |
| 909 xdr_diropargs3, NULL_xdrproc_t, sizeof (REMOVE3args), | |
| 910 xdr_REMOVE3res, NULL_xdrproc_t, sizeof (REMOVE3res), | |
| 911 nullfree, 0, | |
| 74 | 912 rfs3_remove_getfh}, |
| 0 | 913 |
| 914 /* RFS3_RMDIR = 13 */ | |
| 915 {rfs3_rmdir, | |
| 916 xdr_diropargs3, NULL_xdrproc_t, sizeof (RMDIR3args), | |
| 917 xdr_RMDIR3res, NULL_xdrproc_t, sizeof (RMDIR3res), | |
| 918 nullfree, 0, | |
| 74 | 919 rfs3_rmdir_getfh}, |
| 0 | 920 |
| 921 /* RFS3_RENAME = 14 */ | |
| 922 {rfs3_rename, | |
| 923 xdr_RENAME3args, NULL_xdrproc_t, sizeof (RENAME3args), | |
| 924 xdr_RENAME3res, NULL_xdrproc_t, sizeof (RENAME3res), | |
| 925 nullfree, 0, | |
| 74 | 926 rfs3_rename_getfh}, |
| 0 | 927 |
| 928 /* RFS3_LINK = 15 */ | |
| 929 {rfs3_link, | |
| 930 xdr_LINK3args, NULL_xdrproc_t, sizeof (LINK3args), | |
| 931 xdr_LINK3res, NULL_xdrproc_t, sizeof (LINK3res), | |
| 932 nullfree, 0, | |
| 74 | 933 rfs3_link_getfh}, |
| 0 | 934 |
| 935 /* RFS3_READDIR = 16 */ | |
| 936 {rfs3_readdir, | |
| 937 xdr_READDIR3args, NULL_xdrproc_t, sizeof (READDIR3args), | |
| 938 xdr_READDIR3res, NULL_xdrproc_t, sizeof (READDIR3res), | |
| 939 rfs3_readdir_free, RPC_IDEMPOTENT, | |
| 74 | 940 rfs3_readdir_getfh}, |
| 0 | 941 |
| 942 /* RFS3_READDIRPLUS = 17 */ | |
| 943 {rfs3_readdirplus, | |
| 944 xdr_READDIRPLUS3args, NULL_xdrproc_t, sizeof (READDIRPLUS3args), | |
| 945 xdr_READDIRPLUS3res, NULL_xdrproc_t, sizeof (READDIRPLUS3res), | |
| 946 rfs3_readdirplus_free, RPC_AVOIDWORK, | |
| 74 | 947 rfs3_readdirplus_getfh}, |
| 0 | 948 |
| 949 /* RFS3_FSSTAT = 18 */ | |
| 950 {rfs3_fsstat, | |
|
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|
951 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (FSSTAT3args), |
| 0 | 952 xdr_FSSTAT3res, NULL_xdrproc_t, sizeof (FSSTAT3res), |
| 953 nullfree, RPC_IDEMPOTENT, | |
| 74 | 954 rfs3_fsstat_getfh}, |
| 0 | 955 |
| 956 /* RFS3_FSINFO = 19 */ | |
| 957 {rfs3_fsinfo, | |
|
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|
958 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (FSINFO3args), |
| 0 | 959 xdr_FSINFO3res, NULL_xdrproc_t, sizeof (FSINFO3res), |
| 960 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON, | |
| 74 | 961 rfs3_fsinfo_getfh}, |
| 0 | 962 |
| 963 /* RFS3_PATHCONF = 20 */ | |
| 964 {rfs3_pathconf, | |
|
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|
965 xdr_nfs_fh3_server, NULL_xdrproc_t, sizeof (PATHCONF3args), |
| 0 | 966 xdr_PATHCONF3res, NULL_xdrproc_t, sizeof (PATHCONF3res), |
| 967 nullfree, RPC_IDEMPOTENT, | |
| 74 | 968 rfs3_pathconf_getfh}, |
| 0 | 969 |
| 970 /* RFS3_COMMIT = 21 */ | |
| 971 {rfs3_commit, | |
| 972 xdr_COMMIT3args, NULL_xdrproc_t, sizeof (COMMIT3args), | |
| 973 xdr_COMMIT3res, NULL_xdrproc_t, sizeof (COMMIT3res), | |
| 974 nullfree, RPC_IDEMPOTENT, | |
| 74 | 975 rfs3_commit_getfh}, |
| 0 | 976 }; |
| 977 | |
| 978 static char *rfscallnames_v4[] = { | |
| 979 "RFS4_NULL", | |
| 980 "RFS4_COMPOUND", | |
| 981 "RFS4_NULL", | |
| 982 "RFS4_NULL", | |
| 983 "RFS4_NULL", | |
| 984 "RFS4_NULL", | |
| 985 "RFS4_NULL", | |
| 986 "RFS4_NULL", | |
| 987 "RFS4_CREATE" | |
| 988 }; | |
| 989 | |
| 990 static struct rpcdisp rfsdisptab_v4[] = { | |
| 991 /* | |
| 992 * NFS VERSION 4 | |
| 993 */ | |
| 994 | |
| 995 /* RFS_NULL = 0 */ | |
| 996 {rpc_null, | |
| 997 xdr_void, NULL_xdrproc_t, 0, | |
| 998 xdr_void, NULL_xdrproc_t, 0, | |
| 74 | 999 nullfree, RPC_IDEMPOTENT, 0}, |
| 0 | 1000 |
| 1001 /* RFS4_compound = 1 */ | |
| 1002 {rfs4_compound, | |
| 806 | 1003 xdr_COMPOUND4args_srv, NULL_xdrproc_t, sizeof (COMPOUND4args), |
| 1004 xdr_COMPOUND4res_srv, NULL_xdrproc_t, sizeof (COMPOUND4res), | |
| 74 | 1005 rfs4_compound_free, 0, 0}, |
| 0 | 1006 }; |
| 1007 | |
| 1008 union rfs_args { | |
| 1009 /* | |
| 1010 * NFS VERSION 2 | |
| 1011 */ | |
| 1012 | |
| 1013 /* RFS_NULL = 0 */ | |
| 1014 | |
| 1015 /* RFS_GETATTR = 1 */ | |
| 1016 fhandle_t nfs2_getattr_args; | |
| 1017 | |
| 1018 /* RFS_SETATTR = 2 */ | |
| 1019 struct nfssaargs nfs2_setattr_args; | |
| 1020 | |
| 1021 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
| 1022 | |
| 1023 /* RFS_LOOKUP = 4 */ | |
| 1024 struct nfsdiropargs nfs2_lookup_args; | |
| 1025 | |
| 1026 /* RFS_READLINK = 5 */ | |
| 1027 fhandle_t nfs2_readlink_args; | |
| 1028 | |
| 1029 /* RFS_READ = 6 */ | |
| 1030 struct nfsreadargs nfs2_read_args; | |
| 1031 | |
| 1032 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
| 1033 | |
| 1034 /* RFS_WRITE = 8 */ | |
| 1035 struct nfswriteargs nfs2_write_args; | |
| 1036 | |
| 1037 /* RFS_CREATE = 9 */ | |
| 1038 struct nfscreatargs nfs2_create_args; | |
| 1039 | |
| 1040 /* RFS_REMOVE = 10 */ | |
| 1041 struct nfsdiropargs nfs2_remove_args; | |
| 1042 | |
| 1043 /* RFS_RENAME = 11 */ | |
| 1044 struct nfsrnmargs nfs2_rename_args; | |
| 1045 | |
| 1046 /* RFS_LINK = 12 */ | |
| 1047 struct nfslinkargs nfs2_link_args; | |
| 1048 | |
| 1049 /* RFS_SYMLINK = 13 */ | |
| 1050 struct nfsslargs nfs2_symlink_args; | |
| 1051 | |
| 1052 /* RFS_MKDIR = 14 */ | |
| 1053 struct nfscreatargs nfs2_mkdir_args; | |
| 1054 | |
| 1055 /* RFS_RMDIR = 15 */ | |
| 1056 struct nfsdiropargs nfs2_rmdir_args; | |
| 1057 | |
| 1058 /* RFS_READDIR = 16 */ | |
| 1059 struct nfsrddirargs nfs2_readdir_args; | |
| 1060 | |
| 1061 /* RFS_STATFS = 17 */ | |
| 1062 fhandle_t nfs2_statfs_args; | |
| 1063 | |
| 1064 /* | |
| 1065 * NFS VERSION 3 | |
| 1066 */ | |
| 1067 | |
| 1068 /* RFS_NULL = 0 */ | |
| 1069 | |
| 1070 /* RFS3_GETATTR = 1 */ | |
| 1071 GETATTR3args nfs3_getattr_args; | |
| 1072 | |
| 1073 /* RFS3_SETATTR = 2 */ | |
| 1074 SETATTR3args nfs3_setattr_args; | |
| 1075 | |
| 1076 /* RFS3_LOOKUP = 3 */ | |
| 1077 LOOKUP3args nfs3_lookup_args; | |
| 1078 | |
| 1079 /* RFS3_ACCESS = 4 */ | |
| 1080 ACCESS3args nfs3_access_args; | |
| 1081 | |
| 1082 /* RFS3_READLINK = 5 */ | |
| 1083 READLINK3args nfs3_readlink_args; | |
| 1084 | |
| 1085 /* RFS3_READ = 6 */ | |
| 1086 READ3args nfs3_read_args; | |
| 1087 | |
| 1088 /* RFS3_WRITE = 7 */ | |
| 1089 WRITE3args nfs3_write_args; | |
| 1090 | |
| 1091 /* RFS3_CREATE = 8 */ | |
| 1092 CREATE3args nfs3_create_args; | |
| 1093 | |
| 1094 /* RFS3_MKDIR = 9 */ | |
| 1095 MKDIR3args nfs3_mkdir_args; | |
| 1096 | |
| 1097 /* RFS3_SYMLINK = 10 */ | |
| 1098 SYMLINK3args nfs3_symlink_args; | |
| 1099 | |
| 1100 /* RFS3_MKNOD = 11 */ | |
| 1101 MKNOD3args nfs3_mknod_args; | |
| 1102 | |
| 1103 /* RFS3_REMOVE = 12 */ | |
| 1104 REMOVE3args nfs3_remove_args; | |
| 1105 | |
| 1106 /* RFS3_RMDIR = 13 */ | |
| 1107 RMDIR3args nfs3_rmdir_args; | |
| 1108 | |
| 1109 /* RFS3_RENAME = 14 */ | |
| 1110 RENAME3args nfs3_rename_args; | |
| 1111 | |
| 1112 /* RFS3_LINK = 15 */ | |
| 1113 LINK3args nfs3_link_args; | |
| 1114 | |
| 1115 /* RFS3_READDIR = 16 */ | |
| 1116 READDIR3args nfs3_readdir_args; | |
| 1117 | |
| 1118 /* RFS3_READDIRPLUS = 17 */ | |
| 1119 READDIRPLUS3args nfs3_readdirplus_args; | |
| 1120 | |
| 1121 /* RFS3_FSSTAT = 18 */ | |
| 1122 FSSTAT3args nfs3_fsstat_args; | |
| 1123 | |
| 1124 /* RFS3_FSINFO = 19 */ | |
| 1125 FSINFO3args nfs3_fsinfo_args; | |
| 1126 | |
| 1127 /* RFS3_PATHCONF = 20 */ | |
| 1128 PATHCONF3args nfs3_pathconf_args; | |
| 1129 | |
| 1130 /* RFS3_COMMIT = 21 */ | |
| 1131 COMMIT3args nfs3_commit_args; | |
| 1132 | |
| 1133 /* | |
| 1134 * NFS VERSION 4 | |
| 1135 */ | |
| 1136 | |
| 1137 /* RFS_NULL = 0 */ | |
| 1138 | |
| 1139 /* COMPUND = 1 */ | |
| 1140 COMPOUND4args nfs4_compound_args; | |
| 1141 }; | |
| 1142 | |
| 1143 union rfs_res { | |
| 1144 /* | |
| 1145 * NFS VERSION 2 | |
| 1146 */ | |
| 1147 | |
| 1148 /* RFS_NULL = 0 */ | |
| 1149 | |
| 1150 /* RFS_GETATTR = 1 */ | |
| 1151 struct nfsattrstat nfs2_getattr_res; | |
| 1152 | |
| 1153 /* RFS_SETATTR = 2 */ | |
| 1154 struct nfsattrstat nfs2_setattr_res; | |
| 1155 | |
| 1156 /* RFS_ROOT = 3 *** NO LONGER SUPPORTED *** */ | |
| 1157 | |
| 1158 /* RFS_LOOKUP = 4 */ | |
| 1159 struct nfsdiropres nfs2_lookup_res; | |
| 1160 | |
| 1161 /* RFS_READLINK = 5 */ | |
| 1162 struct nfsrdlnres nfs2_readlink_res; | |
| 1163 | |
| 1164 /* RFS_READ = 6 */ | |
| 1165 struct nfsrdresult nfs2_read_res; | |
| 1166 | |
| 1167 /* RFS_WRITECACHE = 7 *** NO LONGER SUPPORTED *** */ | |
| 1168 | |
| 1169 /* RFS_WRITE = 8 */ | |
| 1170 struct nfsattrstat nfs2_write_res; | |
| 1171 | |
| 1172 /* RFS_CREATE = 9 */ | |
| 1173 struct nfsdiropres nfs2_create_res; | |
| 1174 | |
| 1175 /* RFS_REMOVE = 10 */ | |
| 1176 enum nfsstat nfs2_remove_res; | |
| 1177 | |
| 1178 /* RFS_RENAME = 11 */ | |
| 1179 enum nfsstat nfs2_rename_res; | |
| 1180 | |
| 1181 /* RFS_LINK = 12 */ | |
| 1182 enum nfsstat nfs2_link_res; | |
| 1183 | |
| 1184 /* RFS_SYMLINK = 13 */ | |
| 1185 enum nfsstat nfs2_symlink_res; | |
| 1186 | |
| 1187 /* RFS_MKDIR = 14 */ | |
| 1188 struct nfsdiropres nfs2_mkdir_res; | |
| 1189 | |
| 1190 /* RFS_RMDIR = 15 */ | |
| 1191 enum nfsstat nfs2_rmdir_res; | |
| 1192 | |
| 1193 /* RFS_READDIR = 16 */ | |
| 1194 struct nfsrddirres nfs2_readdir_res; | |
| 1195 | |
| 1196 /* RFS_STATFS = 17 */ | |
| 1197 struct nfsstatfs nfs2_statfs_res; | |
| 1198 | |
| 1199 /* | |
| 1200 * NFS VERSION 3 | |
| 1201 */ | |
| 1202 | |
| 1203 /* RFS_NULL = 0 */ | |
| 1204 | |
| 1205 /* RFS3_GETATTR = 1 */ | |
| 1206 GETATTR3res nfs3_getattr_res; | |
| 1207 | |
| 1208 /* RFS3_SETATTR = 2 */ | |
| 1209 SETATTR3res nfs3_setattr_res; | |
| 1210 | |
| 1211 /* RFS3_LOOKUP = 3 */ | |
| 1212 LOOKUP3res nfs3_lookup_res; | |
| 1213 | |
| 1214 /* RFS3_ACCESS = 4 */ | |
| 1215 ACCESS3res nfs3_access_res; | |
| 1216 | |
| 1217 /* RFS3_READLINK = 5 */ | |
| 1218 READLINK3res nfs3_readlink_res; | |
| 1219 | |
| 1220 /* RFS3_READ = 6 */ | |
| 1221 READ3res nfs3_read_res; | |
| 1222 | |
| 1223 /* RFS3_WRITE = 7 */ | |
| 1224 WRITE3res nfs3_write_res; | |
| 1225 | |
| 1226 /* RFS3_CREATE = 8 */ | |
| 1227 CREATE3res nfs3_create_res; | |
| 1228 | |
| 1229 /* RFS3_MKDIR = 9 */ | |
| 1230 MKDIR3res nfs3_mkdir_res; | |
| 1231 | |
| 1232 /* RFS3_SYMLINK = 10 */ | |
| 1233 SYMLINK3res nfs3_symlink_res; | |
| 1234 | |
| 1235 /* RFS3_MKNOD = 11 */ | |
| 1236 MKNOD3res nfs3_mknod_res; | |
| 1237 | |
| 1238 /* RFS3_REMOVE = 12 */ | |
| 1239 REMOVE3res nfs3_remove_res; | |
| 1240 | |
| 1241 /* RFS3_RMDIR = 13 */ | |
| 1242 RMDIR3res nfs3_rmdir_res; | |
| 1243 | |
| 1244 /* RFS3_RENAME = 14 */ | |
| 1245 RENAME3res nfs3_rename_res; | |
| 1246 | |
| 1247 /* RFS3_LINK = 15 */ | |
| 1248 LINK3res nfs3_link_res; | |
| 1249 | |
| 1250 /* RFS3_READDIR = 16 */ | |
| 1251 READDIR3res nfs3_readdir_res; | |
| 1252 | |
| 1253 /* RFS3_READDIRPLUS = 17 */ | |
| 1254 READDIRPLUS3res nfs3_readdirplus_res; | |
| 1255 | |
| 1256 /* RFS3_FSSTAT = 18 */ | |
| 1257 FSSTAT3res nfs3_fsstat_res; | |
| 1258 | |
| 1259 /* RFS3_FSINFO = 19 */ | |
| 1260 FSINFO3res nfs3_fsinfo_res; | |
| 1261 | |
| 1262 /* RFS3_PATHCONF = 20 */ | |
| 1263 PATHCONF3res nfs3_pathconf_res; | |
| 1264 | |
| 1265 /* RFS3_COMMIT = 21 */ | |
| 1266 COMMIT3res nfs3_commit_res; | |
| 1267 | |
| 1268 /* | |
| 1269 * NFS VERSION 4 | |
| 1270 */ | |
| 1271 | |
| 1272 /* RFS_NULL = 0 */ | |
| 1273 | |
| 1274 /* RFS4_COMPOUND = 1 */ | |
| 1275 COMPOUND4res nfs4_compound_res; | |
| 1276 | |
| 1277 }; | |
| 1278 | |
| 1279 static struct rpc_disptable rfs_disptable[] = { | |
| 1280 {sizeof (rfsdisptab_v2) / sizeof (rfsdisptab_v2[0]), | |
| 1281 rfscallnames_v2, | |
| 1282 &rfsproccnt_v2_ptr, rfsdisptab_v2}, | |
| 1283 {sizeof (rfsdisptab_v3) / sizeof (rfsdisptab_v3[0]), | |
| 1284 rfscallnames_v3, | |
| 1285 &rfsproccnt_v3_ptr, rfsdisptab_v3}, | |
| 1286 {sizeof (rfsdisptab_v4) / sizeof (rfsdisptab_v4[0]), | |
| 1287 rfscallnames_v4, | |
| 1288 &rfsproccnt_v4_ptr, rfsdisptab_v4}, | |
| 1289 }; | |
| 1290 | |
| 1291 /* | |
| 1292 * If nfs_portmon is set, then clients are required to use privileged | |
| 1293 * ports (ports < IPPORT_RESERVED) in order to get NFS services. | |
| 1294 * | |
| 1295 * N.B.: this attempt to carry forward the already ill-conceived notion | |
| 1296 * of privileged ports for TCP/UDP is really quite ineffectual. Not only | |
| 1297 * is it transport-dependent, it's laughably easy to spoof. If you're | |
| 1298 * really interested in security, you must start with secure RPC instead. | |
| 1299 */ | |
| 1300 static int nfs_portmon = 0; | |
| 1301 | |
| 1302 #ifdef DEBUG | |
| 1303 static int cred_hits = 0; | |
| 1304 static int cred_misses = 0; | |
| 1305 #endif | |
| 1306 | |
| 1307 | |
| 1308 #ifdef DEBUG | |
| 1309 /* | |
| 1310 * Debug code to allow disabling of rfs_dispatch() use of | |
| 1311 * fastxdrargs() and fastxdrres() calls for testing purposes. | |
| 1312 */ | |
| 1313 static int rfs_no_fast_xdrargs = 0; | |
| 1314 static int rfs_no_fast_xdrres = 0; | |
| 1315 #endif | |
| 1316 | |
| 1317 union acl_args { | |
| 1318 /* | |
| 1319 * ACL VERSION 2 | |
| 1320 */ | |
| 1321 | |
| 1322 /* ACL2_NULL = 0 */ | |
| 1323 | |
| 1324 /* ACL2_GETACL = 1 */ | |
| 1325 GETACL2args acl2_getacl_args; | |
| 1326 | |
| 1327 /* ACL2_SETACL = 2 */ | |
| 1328 SETACL2args acl2_setacl_args; | |
| 1329 | |
| 1330 /* ACL2_GETATTR = 3 */ | |
| 1331 GETATTR2args acl2_getattr_args; | |
| 1332 | |
| 1333 /* ACL2_ACCESS = 4 */ | |
| 1334 ACCESS2args acl2_access_args; | |
| 1335 | |
| 1336 /* ACL2_GETXATTRDIR = 5 */ | |
| 1337 GETXATTRDIR2args acl2_getxattrdir_args; | |
| 1338 | |
| 1339 /* | |
| 1340 * ACL VERSION 3 | |
| 1341 */ | |
| 1342 | |
| 1343 /* ACL3_NULL = 0 */ | |
| 1344 | |
| 1345 /* ACL3_GETACL = 1 */ | |
| 1346 GETACL3args acl3_getacl_args; | |
| 1347 | |
| 1348 /* ACL3_SETACL = 2 */ | |
| 1349 SETACL3args acl3_setacl; | |
| 1350 | |
| 1351 /* ACL3_GETXATTRDIR = 3 */ | |
| 1352 GETXATTRDIR3args acl3_getxattrdir_args; | |
| 1353 | |
| 1354 }; | |
| 1355 | |
| 1356 union acl_res { | |
| 1357 /* | |
| 1358 * ACL VERSION 2 | |
| 1359 */ | |
| 1360 | |
| 1361 /* ACL2_NULL = 0 */ | |
| 1362 | |
| 1363 /* ACL2_GETACL = 1 */ | |
| 1364 GETACL2res acl2_getacl_res; | |
| 1365 | |
| 1366 /* ACL2_SETACL = 2 */ | |
| 1367 SETACL2res acl2_setacl_res; | |
| 1368 | |
| 1369 /* ACL2_GETATTR = 3 */ | |
| 1370 GETATTR2res acl2_getattr_res; | |
| 1371 | |
| 1372 /* ACL2_ACCESS = 4 */ | |
| 1373 ACCESS2res acl2_access_res; | |
| 1374 | |
| 1375 /* ACL2_GETXATTRDIR = 5 */ | |
| 1376 GETXATTRDIR2args acl2_getxattrdir_res; | |
| 1377 | |
| 1378 /* | |
| 1379 * ACL VERSION 3 | |
| 1380 */ | |
| 1381 | |
| 1382 /* ACL3_NULL = 0 */ | |
| 1383 | |
| 1384 /* ACL3_GETACL = 1 */ | |
| 1385 GETACL3res acl3_getacl_res; | |
| 1386 | |
| 1387 /* ACL3_SETACL = 2 */ | |
| 1388 SETACL3res acl3_setacl_res; | |
| 1389 | |
| 1390 /* ACL3_GETXATTRDIR = 3 */ | |
| 1391 GETXATTRDIR3res acl3_getxattrdir_res; | |
| 1392 | |
| 1393 }; | |
| 1394 | |
| 1395 static bool_t | |
| 1396 auth_tooweak(struct svc_req *req, char *res) | |
| 1397 { | |
| 1398 | |
| 1399 if (req->rq_vers == NFS_VERSION && req->rq_proc == RFS_LOOKUP) { | |
| 1400 struct nfsdiropres *dr = (struct nfsdiropres *)res; | |
| 1401 if (dr->dr_status == WNFSERR_CLNT_FLAVOR) | |
| 1402 return (TRUE); | |
| 1403 } else if (req->rq_vers == NFS_V3 && req->rq_proc == NFSPROC3_LOOKUP) { | |
| 1404 LOOKUP3res *resp = (LOOKUP3res *)res; | |
| 1405 if (resp->status == WNFSERR_CLNT_FLAVOR) | |
| 1406 return (TRUE); | |
| 1407 } | |
| 1408 return (FALSE); | |
| 1409 } | |
| 1410 | |
| 74 | 1411 |
| 0 | 1412 static void |
| 1413 common_dispatch(struct svc_req *req, SVCXPRT *xprt, rpcvers_t min_vers, | |
| 1414 rpcvers_t max_vers, char *pgmname, | |
| 1415 struct rpc_disptable *disptable) | |
| 1416 { | |
| 1417 int which; | |
| 1418 rpcvers_t vers; | |
| 1419 char *args; | |
| 1420 union { | |
| 1421 union rfs_args ra; | |
| 1422 union acl_args aa; | |
| 1423 } args_buf; | |
| 1424 char *res; | |
| 1425 union { | |
| 1426 union rfs_res rr; | |
| 1427 union acl_res ar; | |
| 1428 } res_buf; | |
| 1429 struct rpcdisp *disp = NULL; | |
| 1430 int dis_flags = 0; | |
| 1431 cred_t *cr; | |
| 1432 int error = 0; | |
| 1433 int anon_ok; | |
| 1434 struct exportinfo *exi = NULL; | |
| 1435 unsigned int nfslog_rec_id; | |
| 1436 int dupstat; | |
| 1437 struct dupreq *dr; | |
| 1438 int authres; | |
| 1439 bool_t publicfh_ok = FALSE; | |
| 1440 enum_t auth_flavor; | |
| 1441 bool_t dupcached = FALSE; | |
| 1442 struct netbuf nb; | |
| 1443 bool_t logging_enabled = FALSE; | |
| 1444 struct exportinfo *nfslog_exi = NULL; | |
| 1232 | 1445 char **procnames; |
| 1446 char cbuf[INET6_ADDRSTRLEN]; /* to hold both IPv4 and IPv6 addr */ | |
| 0 | 1447 |
| 1448 vers = req->rq_vers; | |
| 1449 | |
| 1450 if (vers < min_vers || vers > max_vers) { | |
| 1451 svcerr_progvers(req->rq_xprt, min_vers, max_vers); | |
| 1452 error++; | |
| 1453 cmn_err(CE_NOTE, "%s: bad version number %u", pgmname, vers); | |
| 1454 goto done; | |
| 1455 } | |
| 1456 vers -= min_vers; | |
| 1457 | |
| 1458 which = req->rq_proc; | |
| 1459 if (which < 0 || which >= disptable[(int)vers].dis_nprocs) { | |
| 1460 svcerr_noproc(req->rq_xprt); | |
| 1461 error++; | |
| 1462 goto done; | |
| 1463 } | |
| 1464 | |
| 1465 (*(disptable[(int)vers].dis_proccntp))[which].value.ui64++; | |
| 1466 | |
| 1467 disp = &disptable[(int)vers].dis_table[which]; | |
| 1232 | 1468 procnames = disptable[(int)vers].dis_procnames; |
| 0 | 1469 |
| 1470 auth_flavor = req->rq_cred.oa_flavor; | |
| 1232 | 1471 |
| 0 | 1472 /* |
| 1473 * Deserialize into the args struct. | |
| 1474 */ | |
| 1475 args = (char *)&args_buf; | |
| 74 | 1476 |
| 0 | 1477 #ifdef DEBUG |
| 1478 if (rfs_no_fast_xdrargs || (auth_flavor == RPCSEC_GSS) || | |
| 1479 disp->dis_fastxdrargs == NULL_xdrproc_t || | |
|
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1480 !SVC_GETARGS(xprt, disp->dis_fastxdrargs, (char *)&args)) |
| 0 | 1481 #else |
| 1482 if ((auth_flavor == RPCSEC_GSS) || | |
| 1483 disp->dis_fastxdrargs == NULL_xdrproc_t || | |
|
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1484 !SVC_GETARGS(xprt, disp->dis_fastxdrargs, (char *)&args)) |
| 0 | 1485 #endif |
|
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1486 { |
| 0 | 1487 bzero(args, disp->dis_argsz); |
| 1488 if (!SVC_GETARGS(xprt, disp->dis_xdrargs, args)) { | |
| 1489 svcerr_decode(xprt); | |
| 1490 error++; | |
| 1232 | 1491 cmn_err(CE_NOTE, |
| 1492 "Failed to decode arguments for %s version %u " | |
| 1493 "procedure %s client %s%s", | |
| 1494 pgmname, vers + min_vers, procnames[which], | |
| 1495 client_name(req), client_addr(req, cbuf)); | |
| 0 | 1496 goto done; |
| 1497 } | |
| 1498 } | |
| 1499 | |
| 1500 /* | |
| 74 | 1501 * If Version 4 use that specific dispatch function. |
| 0 | 1502 */ |
| 74 | 1503 if (req->rq_vers == 4) { |
| 1504 error += rfs4_dispatch(disp, req, xprt, args); | |
| 1505 goto done; | |
| 1506 } | |
| 1507 | |
| 1508 dis_flags = disp->dis_flags; | |
| 0 | 1509 |
| 1510 /* | |
| 1511 * Find export information and check authentication, | |
| 1512 * setting the credential if everything is ok. | |
| 1513 */ | |
| 1514 if (disp->dis_getfh != NULL) { | |
|
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1515 void *fh; |
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1516 fsid_t *fsid; |
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1517 fid_t *fid, *xfid; |
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1518 fhandle_t *fh2; |
|
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1519 nfs_fh3 *fh3; |
| 0 | 1520 |
| 1521 fh = (*disp->dis_getfh)(args); | |
|
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1522 switch (req->rq_vers) { |
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1523 case NFS_VERSION: |
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1524 fh2 = (fhandle_t *)fh; |
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1525 fsid = &fh2->fh_fsid; |
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1526 fid = (fid_t *)&fh2->fh_len; |
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1527 xfid = (fid_t *)&fh2->fh_xlen; |
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1528 break; |
|
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1529 case NFS_V3: |
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1530 fh3 = (nfs_fh3 *)fh; |
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1531 fsid = &fh3->fh3_fsid; |
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1532 fid = FH3TOFIDP(fh3); |
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1533 xfid = FH3TOXFIDP(fh3); |
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1534 break; |
|
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|
1535 } |
| 0 | 1536 |
| 1537 /* | |
| 1538 * Fix for bug 1038302 - corbin | |
| 1539 * There is a problem here if anonymous access is | |
| 1540 * disallowed. If the current request is part of the | |
| 1541 * client's mount process for the requested filesystem, | |
| 1542 * then it will carry root (uid 0) credentials on it, and | |
| 1543 * will be denied by checkauth if that client does not | |
| 1544 * have explicit root=0 permission. This will cause the | |
| 1545 * client's mount operation to fail. As a work-around, | |
| 1546 * we check here to see if the request is a getattr or | |
| 1547 * statfs operation on the exported vnode itself, and | |
| 1548 * pass a flag to checkauth with the result of this test. | |
| 1549 * | |
| 1550 * The filehandle refers to the mountpoint itself if | |
| 1551 * the fh_data and fh_xdata portions of the filehandle | |
| 1552 * are equal. | |
| 1553 * | |
| 1554 * Added anon_ok argument to checkauth(). | |
| 1555 */ | |
| 1556 | |
|
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1557 if ((dis_flags & RPC_ALLOWANON) && EQFID(fid, xfid)) |
| 0 | 1558 anon_ok = 1; |
| 1559 else | |
| 1560 anon_ok = 0; | |
| 1561 | |
| 1562 cr = xprt->xp_cred; | |
| 1563 ASSERT(cr != NULL); | |
| 1564 #ifdef DEBUG | |
| 1565 if (crgetref(cr) != 1) { | |
| 1566 crfree(cr); | |
| 1567 cr = crget(); | |
| 1568 xprt->xp_cred = cr; | |
| 1569 cred_misses++; | |
| 1570 } else | |
| 1571 cred_hits++; | |
| 1572 #else | |
| 1573 if (crgetref(cr) != 1) { | |
| 1574 crfree(cr); | |
| 1575 cr = crget(); | |
| 1576 xprt->xp_cred = cr; | |
| 1577 } | |
| 1578 #endif | |
| 1579 | |
|
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1580 exi = checkexport(fsid, xfid); |
| 74 | 1581 |
| 0 | 1582 if (exi != NULL) { |
|
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1583 publicfh_ok = PUBLICFH_CHECK(disp, exi, fsid, xfid); |
| 0 | 1584 |
| 1585 /* | |
| 1586 * Don't allow non-V4 clients access | |
| 1587 * to pseudo exports | |
| 1588 */ | |
| 1589 if (PSEUDO(exi)) { | |
| 1590 svcerr_weakauth(xprt); | |
| 1591 error++; | |
| 1592 goto done; | |
| 1593 } | |
| 1594 | |
| 1595 authres = checkauth(exi, req, cr, anon_ok, publicfh_ok); | |
| 1596 /* | |
| 1597 * authres > 0: authentication OK - proceed | |
| 1598 * authres == 0: authentication weak - return error | |
| 1599 * authres < 0: authentication timeout - drop | |
| 1600 */ | |
| 1601 if (authres <= 0) { | |
| 1602 if (authres == 0) { | |
| 1603 svcerr_weakauth(xprt); | |
| 1604 error++; | |
| 1605 } | |
| 1606 goto done; | |
| 1607 } | |
| 1608 } | |
| 1609 } else | |
| 1610 cr = NULL; | |
| 1611 | |
| 1612 if ((dis_flags & RPC_MAPRESP) && (auth_flavor != RPCSEC_GSS)) { | |
| 1613 res = (char *)SVC_GETRES(xprt, disp->dis_ressz); | |
| 1614 if (res == NULL) | |
| 1615 res = (char *)&res_buf; | |
| 1616 } else | |
| 1617 res = (char *)&res_buf; | |
| 1618 | |
| 1619 if (!(dis_flags & RPC_IDEMPOTENT)) { | |
| 1620 dupstat = SVC_DUP_EXT(xprt, req, res, disp->dis_ressz, &dr, | |
| 1621 &dupcached); | |
| 1622 | |
| 1623 switch (dupstat) { | |
| 1624 case DUP_ERROR: | |
| 1625 svcerr_systemerr(xprt); | |
| 1626 error++; | |
| 1627 goto done; | |
| 1628 /* NOTREACHED */ | |
| 1629 case DUP_INPROGRESS: | |
| 1630 if (res != (char *)&res_buf) | |
| 1631 SVC_FREERES(xprt); | |
| 1632 error++; | |
| 1633 goto done; | |
| 1634 /* NOTREACHED */ | |
| 1635 case DUP_NEW: | |
| 1636 case DUP_DROP: | |
| 1637 curthread->t_flag |= T_DONTPEND; | |
| 74 | 1638 |
| 0 | 1639 (*disp->dis_proc)(args, res, exi, req, cr); |
| 74 | 1640 |
| 0 | 1641 curthread->t_flag &= ~T_DONTPEND; |
| 1642 if (curthread->t_flag & T_WOULDBLOCK) { | |
| 1643 curthread->t_flag &= ~T_WOULDBLOCK; | |
| 1644 SVC_DUPDONE_EXT(xprt, dr, res, NULL, | |
| 1645 disp->dis_ressz, DUP_DROP); | |
| 1646 if (res != (char *)&res_buf) | |
| 1647 SVC_FREERES(xprt); | |
| 1648 error++; | |
| 1649 goto done; | |
| 1650 } | |
| 1651 if (dis_flags & RPC_AVOIDWORK) { | |
| 1652 SVC_DUPDONE_EXT(xprt, dr, res, NULL, | |
| 1653 disp->dis_ressz, DUP_DROP); | |
| 1654 } else { | |
| 1655 SVC_DUPDONE_EXT(xprt, dr, res, | |
| 1656 disp->dis_resfree == nullfree ? NULL : | |
| 1657 disp->dis_resfree, | |
| 1658 disp->dis_ressz, DUP_DONE); | |
| 1659 dupcached = TRUE; | |
| 1660 } | |
| 1661 break; | |
| 1662 case DUP_DONE: | |
| 1663 break; | |
| 1664 } | |
| 1665 | |
| 1666 } else { | |
| 1667 curthread->t_flag |= T_DONTPEND; | |
| 74 | 1668 |
| 0 | 1669 (*disp->dis_proc)(args, res, exi, req, cr); |
| 74 | 1670 |
| 0 | 1671 curthread->t_flag &= ~T_DONTPEND; |
| 1672 if (curthread->t_flag & T_WOULDBLOCK) { | |
| 1673 curthread->t_flag &= ~T_WOULDBLOCK; | |
| 1674 if (res != (char *)&res_buf) | |
| 1675 SVC_FREERES(xprt); | |
| 1676 error++; | |
| 1677 goto done; | |
| 1678 } | |
| 1679 } | |
| 1680 | |
| 1681 if (auth_tooweak(req, res)) { | |
| 1682 svcerr_weakauth(xprt); | |
| 1683 error++; | |
| 1684 goto done; | |
| 1685 } | |
| 1686 | |
| 1687 /* | |
| 1688 * Check to see if logging has been enabled on the server. | |
| 1689 * If so, then obtain the export info struct to be used for | |
| 1690 * the later writing of the log record. This is done for | |
| 1691 * the case that a lookup is done across a non-logged public | |
| 1692 * file system. | |
| 1693 */ | |
| 1694 if (nfslog_buffer_list != NULL) { | |
| 1695 nfslog_exi = nfslog_get_exi(exi, req, res, &nfslog_rec_id); | |
| 1696 /* | |
| 1697 * Is logging enabled? | |
| 1698 */ | |
| 1699 logging_enabled = (nfslog_exi != NULL); | |
| 1700 | |
| 1701 /* | |
| 1702 * Copy the netbuf for logging purposes, before it is | |
| 1703 * freed by svc_sendreply(). | |
| 1704 */ | |
| 1705 if (logging_enabled) { | |
| 1706 NFSLOG_COPY_NETBUF(nfslog_exi, xprt, &nb); | |
| 1707 /* | |
| 1708 * If RPC_MAPRESP flag set (i.e. in V2 ops) the | |
| 1709 * res gets copied directly into the mbuf and | |
| 1710 * may be freed soon after the sendreply. So we | |
| 1711 * must copy it here to a safe place... | |
| 1712 */ | |
| 1713 if (res != (char *)&res_buf) { | |
| 1714 bcopy(res, (char *)&res_buf, disp->dis_ressz); | |
| 1715 } | |
| 1716 } | |
| 1717 } | |
| 1718 | |
| 1719 /* | |
| 1720 * Serialize and send results struct | |
| 1721 */ | |
| 1722 #ifdef DEBUG | |
|
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1723 if (rfs_no_fast_xdrres == 0 && res != (char *)&res_buf) |
| 0 | 1724 #else |
|
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1725 if (res != (char *)&res_buf) |
| 0 | 1726 #endif |
|
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1727 { |
| 0 | 1728 if (!svc_sendreply(xprt, disp->dis_fastxdrres, res)) { |
| 1729 cmn_err(CE_NOTE, "%s: bad sendreply", pgmname); | |
| 1730 error++; | |
| 1731 } | |
| 1732 } else { | |
| 1733 if (!svc_sendreply(xprt, disp->dis_xdrres, res)) { | |
| 1734 cmn_err(CE_NOTE, "%s: bad sendreply", pgmname); | |
| 1735 error++; | |
| 1736 } | |
| 1737 } | |
| 1738 | |
| 1739 /* | |
| 1740 * Log if needed | |
| 1741 */ | |
| 1742 if (logging_enabled) { | |
| 1743 nfslog_write_record(nfslog_exi, req, args, (char *)&res_buf, | |
| 1744 cr, &nb, nfslog_rec_id, NFSLOG_ONE_BUFFER); | |
| 1745 exi_rele(nfslog_exi); | |
| 1746 kmem_free((&nb)->buf, (&nb)->len); | |
| 1747 } | |
| 1748 | |
| 1749 /* | |
| 1750 * Free results struct. With the addition of NFS V4 we can | |
| 1751 * have non-idempotent procedures with functions. | |
| 1752 */ | |
| 1753 if (disp->dis_resfree != nullfree && dupcached == FALSE) { | |
| 1754 (*disp->dis_resfree)(res); | |
| 1755 } | |
| 1756 | |
| 1757 done: | |
| 1758 /* | |
| 1759 * Free arguments struct | |
| 1760 */ | |
| 1761 if (disp) { | |
| 1762 if (!SVC_FREEARGS(xprt, disp->dis_xdrargs, args)) { | |
| 1763 cmn_err(CE_NOTE, "%s: bad freeargs", pgmname); | |
| 1764 error++; | |
| 1765 } | |
| 1766 } else { | |
| 1767 if (!SVC_FREEARGS(xprt, (xdrproc_t)0, (caddr_t)0)) { | |
| 1768 cmn_err(CE_NOTE, "%s: bad freeargs", pgmname); | |
| 1769 error++; | |
| 1770 } | |
| 1771 } | |
| 1772 | |
| 1773 if (exi != NULL) | |
| 1774 exi_rele(exi); | |
| 1775 | |
| 1776 global_svstat_ptr[req->rq_vers][NFS_BADCALLS].value.ui64 += error; | |
| 1777 | |
| 1778 global_svstat_ptr[req->rq_vers][NFS_CALLS].value.ui64++; | |
| 1779 } | |
| 1780 | |
| 1781 static void | |
| 1782 rfs_dispatch(struct svc_req *req, SVCXPRT *xprt) | |
| 1783 { | |
| 1784 common_dispatch(req, xprt, NFS_VERSMIN, NFS_VERSMAX, | |
| 1232 | 1785 "NFS", rfs_disptable); |
| 0 | 1786 } |
| 1787 | |
| 1788 static char *aclcallnames_v2[] = { | |
| 1789 "ACL2_NULL", | |
| 1790 "ACL2_GETACL", | |
| 1791 "ACL2_SETACL", | |
| 1792 "ACL2_GETATTR", | |
| 1793 "ACL2_ACCESS", | |
| 1794 "ACL2_GETXATTRDIR" | |
| 1795 }; | |
| 1796 | |
| 1797 static struct rpcdisp acldisptab_v2[] = { | |
| 1798 /* | |
| 1799 * ACL VERSION 2 | |
| 1800 */ | |
| 1801 | |
| 1802 /* ACL2_NULL = 0 */ | |
| 1803 {rpc_null, | |
| 1804 xdr_void, NULL_xdrproc_t, 0, | |
| 1805 xdr_void, NULL_xdrproc_t, 0, | |
| 1806 nullfree, RPC_IDEMPOTENT, | |
| 1807 0}, | |
| 1808 | |
| 1809 /* ACL2_GETACL = 1 */ | |
| 1810 {acl2_getacl, | |
| 1811 xdr_GETACL2args, xdr_fastGETACL2args, sizeof (GETACL2args), | |
| 1812 xdr_GETACL2res, NULL_xdrproc_t, sizeof (GETACL2res), | |
| 1813 acl2_getacl_free, RPC_IDEMPOTENT, | |
| 1814 acl2_getacl_getfh}, | |
| 1815 | |
| 1816 /* ACL2_SETACL = 2 */ | |
| 1817 {acl2_setacl, | |
| 1818 xdr_SETACL2args, NULL_xdrproc_t, sizeof (SETACL2args), | |
| 1819 #ifdef _LITTLE_ENDIAN | |
| 1820 xdr_SETACL2res, xdr_fastSETACL2res, sizeof (SETACL2res), | |
| 1821 #else | |
| 1822 xdr_SETACL2res, NULL_xdrproc_t, sizeof (SETACL2res), | |
| 1823 #endif | |
| 1824 nullfree, RPC_MAPRESP, | |
| 1825 acl2_setacl_getfh}, | |
| 1826 | |
| 1827 /* ACL2_GETATTR = 3 */ | |
| 1828 {acl2_getattr, | |
| 1829 xdr_GETATTR2args, xdr_fastGETATTR2args, sizeof (GETATTR2args), | |
| 1830 #ifdef _LITTLE_ENDIAN | |
| 1831 xdr_GETATTR2res, xdr_fastGETATTR2res, sizeof (GETATTR2res), | |
| 1832 #else | |
| 1833 xdr_GETATTR2res, NULL_xdrproc_t, sizeof (GETATTR2res), | |
| 1834 #endif | |
| 1835 nullfree, RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_MAPRESP, | |
| 1836 acl2_getattr_getfh}, | |
| 1837 | |
| 1838 /* ACL2_ACCESS = 4 */ | |
| 1839 {acl2_access, | |
| 1840 xdr_ACCESS2args, xdr_fastACCESS2args, sizeof (ACCESS2args), | |
| 1841 #ifdef _LITTLE_ENDIAN | |
| 1842 xdr_ACCESS2res, xdr_fastACCESS2res, sizeof (ACCESS2res), | |
| 1843 #else | |
| 1844 xdr_ACCESS2res, NULL_xdrproc_t, sizeof (ACCESS2res), | |
| 1845 #endif | |
| 1846 nullfree, RPC_IDEMPOTENT|RPC_MAPRESP, | |
| 1847 acl2_access_getfh}, | |
| 1848 | |
| 1849 /* ACL2_GETXATTRDIR = 5 */ | |
| 1850 {acl2_getxattrdir, | |
| 1851 xdr_GETXATTRDIR2args, NULL_xdrproc_t, sizeof (GETXATTRDIR2args), | |
| 1852 xdr_GETXATTRDIR2res, NULL_xdrproc_t, sizeof (GETXATTRDIR2res), | |
| 1853 nullfree, RPC_IDEMPOTENT, | |
| 1854 acl2_getxattrdir_getfh}, | |
| 1855 }; | |
| 1856 | |
| 1857 static char *aclcallnames_v3[] = { | |
| 1858 "ACL3_NULL", | |
| 1859 "ACL3_GETACL", | |
| 1860 "ACL3_SETACL", | |
| 1861 "ACL3_GETXATTRDIR" | |
| 1862 }; | |
| 1863 | |
| 1864 static struct rpcdisp acldisptab_v3[] = { | |
| 1865 /* | |
| 1866 * ACL VERSION 3 | |
| 1867 */ | |
| 1868 | |
| 1869 /* ACL3_NULL = 0 */ | |
| 1870 {rpc_null, | |
| 1871 xdr_void, NULL_xdrproc_t, 0, | |
| 1872 xdr_void, NULL_xdrproc_t, 0, | |
| 1873 nullfree, RPC_IDEMPOTENT, | |
| 1874 0}, | |
| 1875 | |
| 1876 /* ACL3_GETACL = 1 */ | |
| 1877 {acl3_getacl, | |
| 1878 xdr_GETACL3args, NULL_xdrproc_t, sizeof (GETACL3args), | |
| 1879 xdr_GETACL3res, NULL_xdrproc_t, sizeof (GETACL3res), | |
| 1880 acl3_getacl_free, RPC_IDEMPOTENT, | |
| 1881 acl3_getacl_getfh}, | |
| 1882 | |
| 1883 /* ACL3_SETACL = 2 */ | |
| 1884 {acl3_setacl, | |
| 1885 xdr_SETACL3args, NULL_xdrproc_t, sizeof (SETACL3args), | |
| 1886 xdr_SETACL3res, NULL_xdrproc_t, sizeof (SETACL3res), | |
| 1887 nullfree, 0, | |
| 1888 acl3_setacl_getfh}, | |
| 1889 | |
| 1890 /* ACL3_GETXATTRDIR = 3 */ | |
| 1891 {acl3_getxattrdir, | |
| 1892 xdr_GETXATTRDIR3args, NULL_xdrproc_t, sizeof (GETXATTRDIR3args), | |
| 1893 xdr_GETXATTRDIR3res, NULL_xdrproc_t, sizeof (GETXATTRDIR3res), | |
| 1894 nullfree, RPC_IDEMPOTENT, | |
| 1895 acl3_getxattrdir_getfh}, | |
| 1896 }; | |
| 1897 | |
| 1898 static struct rpc_disptable acl_disptable[] = { | |
| 1899 {sizeof (acldisptab_v2) / sizeof (acldisptab_v2[0]), | |
| 1900 aclcallnames_v2, | |
| 1901 &aclproccnt_v2_ptr, acldisptab_v2}, | |
| 1902 {sizeof (acldisptab_v3) / sizeof (acldisptab_v3[0]), | |
| 1903 aclcallnames_v3, | |
| 1904 &aclproccnt_v3_ptr, acldisptab_v3}, | |
| 1905 }; | |
| 1906 | |
| 1907 static void | |
| 1908 acl_dispatch(struct svc_req *req, SVCXPRT *xprt) | |
| 1909 { | |
| 1910 common_dispatch(req, xprt, NFS_ACL_VERSMIN, NFS_ACL_VERSMAX, | |
| 1232 | 1911 "ACL", acl_disptable); |
| 0 | 1912 } |
| 1913 | |
| 1914 int | |
| 1915 checkwin(int flavor, int window, struct svc_req *req) | |
| 1916 { | |
| 1917 struct authdes_cred *adc; | |
| 1918 | |
| 1919 switch (flavor) { | |
| 1920 case AUTH_DES: | |
| 1921 adc = (struct authdes_cred *)req->rq_clntcred; | |
| 1922 if (adc->adc_fullname.window > window) | |
| 1923 return (0); | |
| 1924 break; | |
| 1925 | |
| 1926 default: | |
| 1927 break; | |
| 1928 } | |
| 1929 return (1); | |
| 1930 } | |
| 1931 | |
| 1932 | |
| 1933 /* | |
| 1934 * checkauth() will check the access permission against the export | |
| 1935 * information. Then map root uid/gid to appropriate uid/gid. | |
| 1936 * | |
| 1937 * This routine is used by NFS V3 and V2 code. | |
| 1938 */ | |
| 1939 static int | |
| 1940 checkauth(struct exportinfo *exi, struct svc_req *req, cred_t *cr, int anon_ok, | |
| 1941 bool_t publicfh_ok) | |
| 1942 { | |
| 1943 int i, nfsflavor, rpcflavor, stat, access; | |
| 1944 struct secinfo *secp; | |
| 1945 caddr_t principal; | |
| 1946 char buf[INET6_ADDRSTRLEN]; /* to hold both IPv4 and IPv6 addr */ | |
| 1947 int anon_res = 0; | |
| 1948 | |
| 1949 /* | |
| 1950 * Check for privileged port number | |
| 1951 * N.B.: this assumes that we know the format of a netbuf. | |
| 1952 */ | |
| 1953 if (nfs_portmon) { | |
| 1954 struct sockaddr *ca; | |
| 1955 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; | |
| 1956 | |
| 1957 if (ca == NULL) | |
| 1958 return (0); | |
| 1959 | |
| 1960 if ((ca->sa_family == AF_INET && | |
| 1961 ntohs(((struct sockaddr_in *)ca)->sin_port) >= | |
| 1962 IPPORT_RESERVED) || | |
| 1963 (ca->sa_family == AF_INET6 && | |
| 1964 ntohs(((struct sockaddr_in6 *)ca)->sin6_port) >= | |
| 1965 IPPORT_RESERVED)) { | |
| 1966 cmn_err(CE_NOTE, | |
| 1967 "nfs_server: client %s%ssent NFS request from " | |
| 1968 "unprivileged port", | |
| 1969 client_name(req), client_addr(req, buf)); | |
| 1970 return (0); | |
| 1971 } | |
| 1972 } | |
| 1973 | |
| 1974 /* | |
| 1975 * return 1 on success or 0 on failure | |
| 1976 */ | |
| 1977 stat = sec_svc_getcred(req, cr, &principal, &nfsflavor); | |
| 1978 | |
| 1979 /* | |
| 1980 * A failed AUTH_UNIX svc_get_cred() implies we couldn't set | |
| 1981 * the credentials; below we map that to anonymous. | |
| 1982 */ | |
| 1983 if (!stat && nfsflavor != AUTH_UNIX) { | |
| 1984 cmn_err(CE_NOTE, | |
| 1985 "nfs_server: couldn't get unix cred for %s", | |
| 1986 client_name(req)); | |
| 1987 return (0); | |
| 1988 } | |
| 1989 | |
| 1990 /* | |
| 1991 * Short circuit checkauth() on operations that support the | |
| 1992 * public filehandle, and if the request for that operation | |
| 1993 * is using the public filehandle. Note that we must call | |
| 1994 * sec_svc_getcred() first so that xp_cookie is set to the | |
| 1995 * right value. Normally xp_cookie is just the RPC flavor | |
| 1996 * of the the request, but in the case of RPCSEC_GSS it | |
| 1997 * could be a pseudo flavor. | |
| 1998 */ | |
| 1999 if (publicfh_ok) | |
| 2000 return (1); | |
| 2001 | |
| 2002 rpcflavor = req->rq_cred.oa_flavor; | |
| 2003 /* | |
| 2004 * Check if the auth flavor is valid for this export | |
| 2005 */ | |
| 2006 access = nfsauth_access(exi, req); | |
| 2007 if (access & NFSAUTH_DROP) | |
| 2008 return (-1); /* drop the request */ | |
| 2009 | |
| 2010 if (access & NFSAUTH_DENIED) { | |
| 2011 /* | |
| 2012 * If anon_ok == 1 and we got NFSAUTH_DENIED, it was | |
| 2013 * probably due to the flavor not matching during the | |
| 2014 * the mount attempt. So map the flavor to AUTH_NONE | |
| 2015 * so that the credentials get mapped to the anonymous | |
| 2016 * user. | |
| 2017 */ | |
| 2018 if (anon_ok == 1) | |
| 2019 rpcflavor = AUTH_NONE; | |
| 2020 else | |
| 2021 return (0); /* deny access */ | |
| 2022 | |
| 2023 } else if (access & NFSAUTH_MAPNONE) { | |
| 2024 /* | |
| 2025 * Access was granted even though the flavor mismatched | |
| 2026 * because AUTH_NONE was one of the exported flavors. | |
| 2027 */ | |
| 2028 rpcflavor = AUTH_NONE; | |
| 2029 | |
| 2030 } else if (access & NFSAUTH_WRONGSEC) { | |
| 2031 /* | |
| 2032 * NFSAUTH_WRONGSEC is used for NFSv4. Since V2/V3 already | |
| 2033 * negotiates the security flavor thru MOUNT protocol, the | |
| 2034 * only way it can get NFSAUTH_WRONGSEC here is from | |
| 2035 * NFS_ACL for V4. This could be for a limited view, so | |
| 2036 * map it to RO access. V4 lookup/readdir will take care | |
| 2037 * of the limited view portion. | |
| 2038 */ | |
| 2039 access |= NFSAUTH_RO; | |
| 2040 access &= ~NFSAUTH_WRONGSEC; | |
| 2041 } | |
| 2042 | |
| 2043 switch (rpcflavor) { | |
| 2044 case AUTH_NONE: | |
| 2045 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
| 2046 exi->exi_export.ex_anon); | |
| 2047 (void) crsetgroups(cr, 0, NULL); | |
| 2048 break; | |
| 2049 | |
| 2050 case AUTH_UNIX: | |
| 2051 if (!stat || crgetuid(cr) == 0 && !(access & NFSAUTH_ROOT)) { | |
| 2052 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
| 2053 exi->exi_export.ex_anon); | |
| 2054 (void) crsetgroups(cr, 0, NULL); | |
| 2055 } | |
| 2056 break; | |
| 2057 | |
| 2058 case AUTH_DES: | |
| 2059 case RPCSEC_GSS: | |
| 2060 /* | |
| 2061 * Find the secinfo structure. We should be able | |
| 2062 * to find it by the time we reach here. | |
| 2063 * nfsauth_access() has done the checking. | |
| 2064 */ | |
| 2065 secp = NULL; | |
| 2066 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { | |
| 2067 if (exi->exi_export.ex_secinfo[i].s_secinfo.sc_nfsnum == | |
| 2068 nfsflavor) { | |
| 2069 secp = &exi->exi_export.ex_secinfo[i]; | |
| 2070 break; | |
| 2071 } | |
| 2072 } | |
| 2073 | |
| 2074 if (!secp) { | |
| 2075 cmn_err(CE_NOTE, "nfs_server: client %s%shad " | |
| 2076 "no secinfo data for flavor %d", | |
| 2077 client_name(req), client_addr(req, buf), | |
| 2078 nfsflavor); | |
| 2079 return (0); | |
| 2080 } | |
| 2081 | |
| 2082 if (!checkwin(rpcflavor, secp->s_window, req)) { | |
| 2083 cmn_err(CE_NOTE, | |
| 2084 "nfs_server: client %s%sused invalid " | |
| 2085 "auth window value", | |
| 2086 client_name(req), client_addr(req, buf)); | |
| 2087 return (0); | |
| 2088 } | |
| 2089 | |
| 2090 /* | |
| 2091 * Map root principals listed in the share's root= list to root, | |
| 2092 * and map any others principals that were mapped to root by RPC | |
| 2093 * to anon. | |
| 2094 */ | |
| 2095 if (principal && sec_svc_inrootlist(rpcflavor, principal, | |
| 2096 secp->s_rootcnt, secp->s_rootnames)) { | |
| 2097 if (crgetuid(cr) == 0) | |
| 2098 return (1); | |
| 2099 | |
| 2100 (void) crsetugid(cr, 0, 0); | |
| 2101 | |
| 2102 /* | |
| 2103 * NOTE: If and when kernel-land privilege tracing is | |
| 2104 * added this may have to be replaced with code that | |
| 2105 * retrieves root's supplementary groups (e.g., using | |
| 2106 * kgss_get_group_info(). In the meantime principals | |
| 2107 * mapped to uid 0 get all privileges, so setting cr's | |
| 2108 * supplementary groups for them does nothing. | |
| 2109 */ | |
| 2110 (void) crsetgroups(cr, 0, NULL); | |
| 2111 | |
| 2112 return (1); | |
| 2113 } | |
| 2114 | |
| 2115 /* | |
| 2116 * Not a root princ, or not in root list, map UID 0/nobody to | |
| 2117 * the anon ID for the share. (RPC sets cr's UIDs and GIDs to | |
| 2118 * UID_NOBODY and GID_NOBODY, respectively.) | |
| 2119 */ | |
| 2120 if (crgetuid(cr) != 0 && | |
| 2121 (crgetuid(cr) != UID_NOBODY || crgetgid(cr) != GID_NOBODY)) | |
| 2122 return (1); | |
| 2123 | |
| 2124 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
| 2125 exi->exi_export.ex_anon); | |
| 2126 (void) crsetgroups(cr, 0, NULL); | |
| 2127 break; | |
| 2128 default: | |
| 2129 return (0); | |
| 2130 } /* switch on rpcflavor */ | |
| 2131 | |
| 2132 /* | |
| 2133 * Even if anon access is disallowed via ex_anon == -1, we allow | |
| 2134 * this access if anon_ok is set. So set creds to the default | |
| 2135 * "nobody" id. | |
| 2136 */ | |
| 2137 if (anon_res != 0) { | |
| 2138 if (anon_ok == 0) { | |
| 2139 cmn_err(CE_NOTE, | |
| 2140 "nfs_server: client %s%ssent wrong " | |
| 2141 "authentication for %s", | |
| 2142 client_name(req), client_addr(req, buf), | |
| 2143 exi->exi_export.ex_path ? | |
| 2144 exi->exi_export.ex_path : "?"); | |
| 2145 return (0); | |
| 2146 } | |
| 2147 | |
| 2148 if (crsetugid(cr, UID_NOBODY, GID_NOBODY) != 0) | |
| 2149 return (0); | |
| 2150 } | |
| 2151 | |
| 2152 return (1); | |
| 2153 } | |
| 2154 | |
| 2155 /* | |
| 2156 * returns 0 on failure, -1 on a drop, -2 on wrong security flavor, | |
| 2157 * and 1 on success | |
| 2158 */ | |
| 2159 int | |
| 2160 checkauth4(struct compound_state *cs, struct svc_req *req) | |
| 2161 { | |
| 2162 int i, rpcflavor, access; | |
| 2163 struct secinfo *secp; | |
| 2164 char buf[MAXHOST + 1]; | |
| 2165 int anon_res = 0, nfsflavor; | |
| 2166 struct exportinfo *exi; | |
| 2167 cred_t *cr; | |
| 2168 caddr_t principal; | |
| 2169 | |
| 2170 exi = cs->exi; | |
| 2171 cr = cs->cr; | |
| 2172 principal = cs->principal; | |
| 2173 nfsflavor = cs->nfsflavor; | |
| 2174 | |
| 2175 ASSERT(cr != NULL); | |
| 2176 | |
| 2177 rpcflavor = req->rq_cred.oa_flavor; | |
| 2178 cs->access &= ~CS_ACCESS_LIMITED; | |
| 2179 | |
| 2180 /* | |
| 2181 * Check the access right per auth flavor on the vnode of | |
| 2182 * this export for the given request. | |
| 2183 */ | |
| 2184 access = nfsauth4_access(cs->exi, cs->vp, req); | |
| 2185 | |
| 2186 if (access & NFSAUTH_WRONGSEC) | |
| 2187 return (-2); /* no access for this security flavor */ | |
| 2188 | |
| 2189 if (access & NFSAUTH_DROP) | |
| 2190 return (-1); /* drop the request */ | |
| 2191 | |
| 2192 if (access & NFSAUTH_DENIED) { | |
| 2193 | |
| 2194 if (exi->exi_export.ex_seccnt > 0) | |
| 2195 return (0); /* deny access */ | |
| 2196 | |
| 2197 } else if (access & NFSAUTH_LIMITED) { | |
| 2198 | |
| 2199 cs->access |= CS_ACCESS_LIMITED; | |
| 2200 | |
| 2201 } else if (access & NFSAUTH_MAPNONE) { | |
| 2202 /* | |
| 2203 * Access was granted even though the flavor mismatched | |
| 2204 * because AUTH_NONE was one of the exported flavors. | |
| 2205 */ | |
| 2206 rpcflavor = AUTH_NONE; | |
| 2207 } | |
| 2208 | |
| 2209 /* | |
| 2210 * XXX probably need to redo some of it for nfsv4? | |
| 2211 * return 1 on success or 0 on failure | |
| 2212 */ | |
| 2213 | |
| 2214 switch (rpcflavor) { | |
| 2215 case AUTH_NONE: | |
| 2216 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
| 2217 exi->exi_export.ex_anon); | |
| 2218 (void) crsetgroups(cr, 0, NULL); | |
| 2219 break; | |
| 2220 | |
| 2221 case AUTH_UNIX: | |
| 2222 if (crgetuid(cr) == 0 && !(access & NFSAUTH_ROOT)) { | |
| 2223 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
| 2224 exi->exi_export.ex_anon); | |
| 2225 (void) crsetgroups(cr, 0, NULL); | |
| 2226 } | |
| 2227 break; | |
| 2228 | |
| 2229 default: | |
| 2230 /* | |
| 2231 * Find the secinfo structure. We should be able | |
| 2232 * to find it by the time we reach here. | |
| 2233 * nfsauth_access() has done the checking. | |
| 2234 */ | |
| 2235 secp = NULL; | |
| 2236 for (i = 0; i < exi->exi_export.ex_seccnt; i++) { | |
| 2237 if (exi->exi_export.ex_secinfo[i].s_secinfo.sc_nfsnum == | |
| 2238 nfsflavor) { | |
| 2239 secp = &exi->exi_export.ex_secinfo[i]; | |
| 2240 break; | |
| 2241 } | |
| 2242 } | |
| 2243 | |
| 2244 if (!secp) { | |
| 2245 cmn_err(CE_NOTE, "nfs_server: client %s%shad " | |
| 2246 "no secinfo data for flavor %d", | |
| 2247 client_name(req), client_addr(req, buf), | |
| 2248 nfsflavor); | |
| 2249 return (0); | |
| 2250 } | |
| 2251 | |
| 2252 if (!checkwin(rpcflavor, secp->s_window, req)) { | |
| 2253 cmn_err(CE_NOTE, | |
| 2254 "nfs_server: client %s%sused invalid " | |
| 2255 "auth window value", | |
| 2256 client_name(req), client_addr(req, buf)); | |
| 2257 return (0); | |
| 2258 } | |
| 2259 | |
| 2260 /* | |
| 2261 * Map root principals listed in the share's root= list to root, | |
| 2262 * and map any others principals that were mapped to root by RPC | |
| 2263 * to anon. | |
| 2264 */ | |
| 2265 if (principal && sec_svc_inrootlist(rpcflavor, principal, | |
| 2266 secp->s_rootcnt, secp->s_rootnames)) { | |
| 2267 if (crgetuid(cr) == 0) | |
| 2268 return (1); | |
| 2269 | |
| 2270 (void) crsetugid(cr, 0, 0); | |
| 2271 | |
| 2272 /* | |
| 2273 * NOTE: If and when kernel-land privilege tracing is | |
| 2274 * added this may have to be replaced with code that | |
| 2275 * retrieves root's supplementary groups (e.g., using | |
| 2276 * kgss_get_group_info(). In the meantime principals | |
| 2277 * mapped to uid 0 get all privileges, so setting cr's | |
| 2278 * supplementary groups for them does nothing. | |
| 2279 */ | |
| 2280 (void) crsetgroups(cr, 0, NULL); | |
| 2281 | |
| 2282 return (1); | |
| 2283 } | |
| 2284 | |
| 2285 /* | |
| 2286 * Not a root princ, or not in root list, map UID 0/nobody to | |
| 2287 * the anon ID for the share. (RPC sets cr's UIDs and GIDs to | |
| 2288 * UID_NOBODY and GID_NOBODY, respectively.) | |
| 2289 */ | |
| 2290 if (crgetuid(cr) != 0 && | |
| 2291 (crgetuid(cr) != UID_NOBODY || crgetgid(cr) != GID_NOBODY)) | |
| 2292 return (1); | |
| 2293 | |
| 2294 anon_res = crsetugid(cr, exi->exi_export.ex_anon, | |
| 2295 exi->exi_export.ex_anon); | |
| 2296 (void) crsetgroups(cr, 0, NULL); | |
| 2297 break; | |
| 2298 } /* switch on rpcflavor */ | |
| 2299 | |
| 2300 /* | |
| 2301 * Even if anon access is disallowed via ex_anon == -1, we allow | |
| 2302 * this access if anon_ok is set. So set creds to the default | |
| 2303 * "nobody" id. | |
| 2304 */ | |
| 2305 | |
| 2306 if (anon_res != 0) { | |
| 2307 cmn_err(CE_NOTE, | |
| 2308 "nfs_server: client %s%ssent wrong " | |
| 2309 "authentication for %s", | |
| 2310 client_name(req), client_addr(req, buf), | |
| 2311 exi->exi_export.ex_path ? | |
| 2312 exi->exi_export.ex_path : "?"); | |
| 2313 return (0); | |
| 2314 } | |
| 2315 | |
| 2316 return (1); | |
| 2317 } | |
| 2318 | |
| 2319 | |
| 2320 static char * | |
| 2321 client_name(struct svc_req *req) | |
| 2322 { | |
| 2323 char *hostname = NULL; | |
| 2324 | |
| 2325 /* | |
| 2326 * If it's a Unix cred then use the | |
| 2327 * hostname from the credential. | |
| 2328 */ | |
| 2329 if (req->rq_cred.oa_flavor == AUTH_UNIX) { | |
| 2330 hostname = ((struct authunix_parms *) | |
| 2331 req->rq_clntcred)->aup_machname; | |
| 2332 } | |
| 2333 if (hostname == NULL) | |
| 2334 hostname = ""; | |
| 2335 | |
| 2336 return (hostname); | |
| 2337 } | |
| 2338 | |
| 2339 static char * | |
| 2340 client_addr(struct svc_req *req, char *buf) | |
| 2341 { | |
| 2342 struct sockaddr *ca; | |
| 2343 uchar_t *b; | |
| 2344 char *frontspace = ""; | |
| 2345 | |
| 2346 /* | |
| 2347 * We assume we are called in tandem with client_name and the | |
| 2348 * format string looks like "...client %s%sblah blah..." | |
| 2349 * | |
| 2350 * If it's a Unix cred then client_name returned | |
| 2351 * a host name, so we need insert a space between host name | |
| 2352 * and IP address. | |
| 2353 */ | |
| 2354 if (req->rq_cred.oa_flavor == AUTH_UNIX) | |
| 2355 frontspace = " "; | |
| 2356 | |
| 2357 /* | |
| 2358 * Convert the caller's IP address to a dotted string | |
| 2359 */ | |
| 2360 ca = (struct sockaddr *)svc_getrpccaller(req->rq_xprt)->buf; | |
| 2361 | |
| 2362 if (ca->sa_family == AF_INET) { | |
| 2363 b = (uchar_t *)&((struct sockaddr_in *)ca)->sin_addr; | |
| 2364 (void) sprintf(buf, "%s(%d.%d.%d.%d) ", frontspace, | |
| 2365 b[0] & 0xFF, b[1] & 0xFF, b[2] & 0xFF, b[3] & 0xFF); | |
| 2366 } else if (ca->sa_family == AF_INET6) { | |
| 2367 struct sockaddr_in6 *sin6; | |
| 2368 sin6 = (struct sockaddr_in6 *)ca; | |
| 2369 (void) kinet_ntop6((uchar_t *)&sin6->sin6_addr, | |
| 2370 buf, INET6_ADDRSTRLEN); | |
| 2371 | |
| 2372 } else { | |
| 2373 | |
| 2374 /* | |
| 2375 * No IP address to print. If there was a host name | |
| 2376 * printed, then we print a space. | |
| 2377 */ | |
| 2378 (void) sprintf(buf, frontspace); | |
| 2379 } | |
| 2380 | |
| 2381 return (buf); | |
| 2382 } | |
| 2383 | |
| 2384 /* | |
| 2385 * NFS Server initialization routine. This routine should only be called | |
| 2386 * once. It performs the following tasks: | |
| 2387 * - Call sub-initialization routines (localize access to variables) | |
| 2388 * - Initialize all locks | |
| 2389 * - initialize the version 3 write verifier | |
| 2390 */ | |
| 2391 int | |
| 2392 nfs_srvinit(void) | |
| 2393 { | |
| 2394 int error; | |
| 2395 | |
| 2396 error = nfs_exportinit(); | |
| 2397 if (error != 0) | |
| 2398 return (error); | |
| 2399 error = rfs4_srvrinit(); | |
| 2400 if (error != 0) { | |
| 2401 nfs_exportfini(); | |
| 2402 return (error); | |
| 2403 } | |
| 2404 rfs_srvrinit(); | |
| 2405 rfs3_srvrinit(); | |
| 2406 nfsauth_init(); | |
| 2407 | |
| 2408 /* Init the stuff to control start/stop */ | |
| 2409 nfs_server_upordown = NFS_SERVER_STOPPED; | |
| 2410 mutex_init(&nfs_server_upordown_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 2411 cv_init(&nfs_server_upordown_cv, NULL, CV_DEFAULT, NULL); | |
| 2412 mutex_init(&rdma_wait_mutex, NULL, MUTEX_DEFAULT, NULL); | |
| 2413 cv_init(&rdma_wait_cv, NULL, CV_DEFAULT, NULL); | |
| 2414 | |
| 2415 return (0); | |
| 2416 } | |
| 2417 | |
| 2418 /* | |
| 2419 * NFS Server finalization routine. This routine is called to cleanup the | |
| 2420 * initialization work previously performed if the NFS server module could | |
| 2421 * not be loaded correctly. | |
| 2422 */ | |
| 2423 void | |
| 2424 nfs_srvfini(void) | |
| 2425 { | |
| 2426 nfsauth_fini(); | |
| 2427 rfs3_srvrfini(); | |
| 2428 rfs_srvrfini(); | |
| 2429 nfs_exportfini(); | |
| 2430 | |
| 2431 mutex_destroy(&nfs_server_upordown_lock); | |
| 2432 cv_destroy(&nfs_server_upordown_cv); | |
| 2433 mutex_destroy(&rdma_wait_mutex); | |
| 2434 cv_destroy(&rdma_wait_cv); | |
| 2435 } | |
| 2436 | |
| 2437 /* | |
| 2438 * Set up an iovec array of up to cnt pointers. | |
| 2439 */ | |
| 2440 | |
| 2441 void | |
| 2442 mblk_to_iov(mblk_t *m, int cnt, struct iovec *iovp) | |
| 2443 { | |
| 2444 while (m != NULL && cnt-- > 0) { | |
| 2445 iovp->iov_base = (caddr_t)m->b_rptr; | |
| 2446 iovp->iov_len = (m->b_wptr - m->b_rptr); | |
| 2447 iovp++; | |
| 2448 m = m->b_cont; | |
| 2449 } | |
| 2450 } | |
| 2451 | |
| 2452 /* | |
| 2453 * Common code between NFS Version 2 and NFS Version 3 for the public | |
| 2454 * filehandle multicomponent lookups. | |
| 2455 */ | |
| 2456 | |
| 2457 /* | |
| 2458 * Public filehandle evaluation of a multi-component lookup, following | |
| 2459 * symbolic links, if necessary. This may result in a vnode in another | |
| 2460 * filesystem, which is OK as long as the other filesystem is exported. | |
| 2461 * | |
| 2462 * Note that the exi will be set either to NULL or a new reference to the | |
| 2463 * exportinfo struct that corresponds to the vnode of the multi-component path. | |
| 2464 * It is the callers responsibility to release this reference. | |
| 2465 */ | |
| 2466 int | |
| 2467 rfs_publicfh_mclookup(char *p, vnode_t *dvp, cred_t *cr, vnode_t **vpp, | |
| 2468 struct exportinfo **exi, struct sec_ol *sec) | |
| 2469 { | |
| 2470 int pathflag; | |
| 2471 vnode_t *mc_dvp = NULL; | |
| 2472 vnode_t *realvp; | |
| 2473 int error; | |
| 2474 | |
| 2475 *exi = NULL; | |
| 2476 | |
| 2477 /* | |
| 2478 * check if the given path is a url or native path. Since p is | |
| 2479 * modified by MCLpath(), it may be empty after returning from | |
| 2480 * there, and should be checked. | |
| 2481 */ | |
| 2482 if ((pathflag = MCLpath(&p)) == -1) | |
| 2483 return (EIO); | |
| 2484 | |
| 2485 /* | |
| 2486 * If pathflag is SECURITY_QUERY, turn the SEC_QUERY bit | |
| 2487 * on in sec->sec_flags. This bit will later serve as an | |
| 2488 * indication in makefh_ol() or makefh3_ol() to overload the | |
| 2489 * filehandle to contain the sec modes used by the server for | |
| 2490 * the path. | |
| 2491 */ | |
| 2492 if (pathflag == SECURITY_QUERY) { | |
| 2493 if ((sec->sec_index = (uint_t)(*p)) > 0) { | |
| 2494 sec->sec_flags |= SEC_QUERY; | |
| 2495 p++; | |
| 2496 if ((pathflag = MCLpath(&p)) == -1) | |
| 2497 return (EIO); | |
| 2498 } else { | |
| 2499 cmn_err(CE_NOTE, | |
| 2500 "nfs_server: invalid security index %d, " | |
| 2501 "violating WebNFS SNEGO protocol.", sec->sec_index); | |
| 2502 return (EIO); | |
| 2503 } | |
| 2504 } | |
| 2505 | |
| 2506 if (p[0] == '\0') { | |
| 2507 error = ENOENT; | |
| 2508 goto publicfh_done; | |
| 2509 } | |
| 2510 | |
| 2511 error = rfs_pathname(p, &mc_dvp, vpp, dvp, cr, pathflag); | |
| 2512 | |
| 2513 /* | |
| 2514 * If name resolves to "/" we get EINVAL since we asked for | |
| 2515 * the vnode of the directory that the file is in. Try again | |
| 2516 * with NULL directory vnode. | |
| 2517 */ | |
| 2518 if (error == EINVAL) { | |
| 2519 error = rfs_pathname(p, NULL, vpp, dvp, cr, pathflag); | |
| 2520 if (!error) { | |
| 2521 ASSERT(*vpp != NULL); | |
| 2522 if ((*vpp)->v_type == VDIR) { | |
| 2523 VN_HOLD(*vpp); | |
| 2524 mc_dvp = *vpp; | |
| 2525 } else { | |
| 2526 /* | |
| 2527 * This should not happen, the filesystem is | |
| 2528 * in an inconsistent state. Fail the lookup | |
| 2529 * at this point. | |
| 2530 */ | |
| 2531 VN_RELE(*vpp); | |
| 2532 error = EINVAL; | |
| 2533 } | |
| 2534 } | |
| 2535 } | |
| 2536 | |
| 2537 if (error) | |
| 2538 goto publicfh_done; | |
| 2539 | |
| 2540 if (*vpp == NULL) { | |
| 2541 error = ENOENT; | |
| 2542 goto publicfh_done; | |
| 2543 } | |
| 2544 | |
| 2545 ASSERT(mc_dvp != NULL); | |
| 2546 ASSERT(*vpp != NULL); | |
| 2547 | |
| 2548 if ((*vpp)->v_type == VDIR) { | |
| 2549 do { | |
| 2550 /* | |
| 2551 * *vpp may be an AutoFS node, so we perform | |
| 2552 * a VOP_ACCESS() to trigger the mount of the intended | |
| 2553 * filesystem, so we can perform the lookup in the | |
| 2554 * intended filesystem. | |
| 2555 */ | |
| 2556 (void) VOP_ACCESS(*vpp, 0, 0, cr); | |
| 2557 | |
| 2558 /* | |
| 2559 * If vnode is covered, get the | |
| 2560 * the topmost vnode. | |
| 2561 */ | |
| 2562 if (vn_mountedvfs(*vpp) != NULL) { | |
| 2563 error = traverse(vpp); | |
| 2564 if (error) { | |
| 2565 VN_RELE(*vpp); | |
| 2566 goto publicfh_done; | |
| 2567 } | |
| 2568 } | |
| 2569 | |
| 2570 if (VOP_REALVP(*vpp, &realvp) == 0 && realvp != *vpp) { | |
| 2571 /* | |
| 2572 * If realvp is different from *vpp | |
| 2573 * then release our reference on *vpp, so that | |
| 2574 * the export access check be performed on the | |
| 2575 * real filesystem instead. | |
| 2576 */ | |
| 2577 VN_HOLD(realvp); | |
| 2578 VN_RELE(*vpp); | |
| 2579 *vpp = realvp; | |
| 2580 } else | |
| 2581 break; | |
| 2582 /* LINTED */ | |
| 2583 } while (TRUE); | |
| 2584 | |
| 2585 /* | |
| 2586 * Let nfs_vptexi() figure what the real parent is. | |
| 2587 */ | |
| 2588 VN_RELE(mc_dvp); | |
| 2589 mc_dvp = NULL; | |
| 2590 | |
| 2591 } else { | |
| 2592 /* | |
| 2593 * If vnode is covered, get the | |
| 2594 * the topmost vnode. | |
| 2595 */ | |
| 2596 if (vn_mountedvfs(mc_dvp) != NULL) { | |
| 2597 error = traverse(&mc_dvp); | |
| 2598 if (error) { | |
| 2599 VN_RELE(*vpp); | |
| 2600 goto publicfh_done; | |
| 2601 } | |
| 2602 } | |
| 2603 | |
| 2604 if (VOP_REALVP(mc_dvp, &realvp) == 0 && realvp != mc_dvp) { | |
| 2605 /* | |
| 2606 * *vpp is a file, obtain realvp of the parent | |
| 2607 * directory vnode. | |
| 2608 */ | |
| 2609 VN_HOLD(realvp); | |
| 2610 VN_RELE(mc_dvp); | |
| 2611 mc_dvp = realvp; | |
| 2612 } | |
| 2613 } | |
| 2614 | |
| 2615 /* | |
| 2616 * The pathname may take us from the public filesystem to another. | |
| 2617 * If that's the case then just set the exportinfo to the new export | |
| 2618 * and build filehandle for it. Thanks to per-access checking there's | |
| 2619 * no security issues with doing this. If the client is not allowed | |
| 2620 * access to this new export then it will get an access error when it | |
| 2621 * tries to use the filehandle | |
| 2622 */ | |
| 2623 if (error = nfs_check_vpexi(mc_dvp, *vpp, kcred, exi)) { | |
| 2624 VN_RELE(*vpp); | |
| 2625 goto publicfh_done; | |
| 2626 } | |
| 2627 | |
| 2628 /* | |
| 2629 * Not allowed access to pseudo exports. | |
| 2630 */ | |
| 2631 if (PSEUDO(*exi)) { | |
| 2632 error = ENOENT; | |
| 2633 VN_RELE(*vpp); | |
| 2634 goto publicfh_done; | |
| 2635 } | |
| 2636 | |
| 2637 /* | |
| 2638 * Do a lookup for the index file. We know the index option doesn't | |
| 2639 * allow paths through handling in the share command, so mc_dvp will | |
| 2640 * be the parent for the index file vnode, if its present. Use | |
| 2641 * temporary pointers to preserve and reuse the vnode pointers of the | |
| 2642 * original directory in case there's no index file. Note that the | |
| 2643 * index file is a native path, and should not be interpreted by | |
| 2644 * the URL parser in rfs_pathname() | |
| 2645 */ | |
| 2646 if (((*exi)->exi_export.ex_flags & EX_INDEX) && | |
| 2647 ((*vpp)->v_type == VDIR) && (pathflag == URLPATH)) { | |
| 2648 vnode_t *tvp, *tmc_dvp; /* temporary vnode pointers */ | |
| 2649 | |
| 2650 tmc_dvp = mc_dvp; | |
| 2651 mc_dvp = tvp = *vpp; | |
| 2652 | |
| 2653 error = rfs_pathname((*exi)->exi_export.ex_index, NULL, vpp, | |
| 2654 mc_dvp, cr, NATIVEPATH); | |
| 2655 | |
| 2656 if (error == ENOENT) { | |
| 2657 *vpp = tvp; | |
| 2658 mc_dvp = tmc_dvp; | |
| 2659 error = 0; | |
| 2660 } else { /* ok or error other than ENOENT */ | |
| 2661 if (tmc_dvp) | |
| 2662 VN_RELE(tmc_dvp); | |
| 2663 if (error) | |
| 2664 goto publicfh_done; | |
| 2665 | |
| 2666 /* | |
| 2667 * Found a valid vp for index "filename". Sanity check | |
| 2668 * for odd case where a directory is provided as index | |
| 2669 * option argument and leads us to another filesystem | |
| 2670 */ | |
| 2671 | |
| 2672 /* Release the reference on the old exi value */ | |
| 2673 ASSERT(*exi != NULL); | |
| 2674 exi_rele(*exi); | |
| 2675 | |
| 2676 if (error = nfs_check_vpexi(mc_dvp, *vpp, kcred, exi)) { | |
| 2677 VN_RELE(*vpp); | |
| 2678 goto publicfh_done; | |
| 2679 } | |
| 2680 } | |
| 2681 } | |
| 2682 | |
| 2683 publicfh_done: | |
| 2684 if (mc_dvp) | |
| 2685 VN_RELE(mc_dvp); | |
| 2686 | |
| 2687 return (error); | |
| 2688 } | |
| 2689 | |
| 2690 /* | |
| 2691 * Evaluate a multi-component path | |
| 2692 */ | |
| 2693 int | |
| 2694 rfs_pathname( | |
| 2695 char *path, /* pathname to evaluate */ | |
| 2696 vnode_t **dirvpp, /* ret for ptr to parent dir vnode */ | |
| 2697 vnode_t **compvpp, /* ret for ptr to component vnode */ | |
| 2698 vnode_t *startdvp, /* starting vnode */ | |
| 2699 cred_t *cr, /* user's credential */ | |
| 2700 int pathflag) /* flag to identify path, e.g. URL */ | |
| 2701 { | |
| 2702 char namebuf[TYPICALMAXPATHLEN]; | |
| 2703 struct pathname pn; | |
| 2704 int error; | |
| 2705 | |
| 2706 /* | |
| 2707 * If pathname starts with '/', then set startdvp to root. | |
| 2708 */ | |
| 2709 if (*path == '/') { | |
| 2710 while (*path == '/') | |
| 2711 path++; | |
| 2712 | |
| 2713 startdvp = rootdir; | |
| 2714 } | |
| 2715 | |
| 2716 error = pn_get_buf(path, UIO_SYSSPACE, &pn, namebuf, sizeof (namebuf)); | |
| 2717 if (error == 0) { | |
| 2718 /* | |
| 2719 * Call the URL parser for URL paths to modify the original | |
| 2720 * string to handle any '%' encoded characters that exist. | |
| 2721 * Done here to avoid an extra bcopy in the lookup. | |
| 2722 * We need to be careful about pathlen's. We know that | |
| 2723 * rfs_pathname() is called with a non-empty path. However, | |
| 2724 * it could be emptied due to the path simply being all /'s, | |
| 2725 * which is valid to proceed with the lookup, or due to the | |
| 2726 * URL parser finding an encoded null character at the | |
| 2727 * beginning of path which should not proceed with the lookup. | |
| 2728 */ | |
| 2729 if (pn.pn_pathlen != 0 && pathflag == URLPATH) { | |
| 2730 URLparse(pn.pn_path); | |
| 2731 if ((pn.pn_pathlen = strlen(pn.pn_path)) == 0) | |
| 2732 return (ENOENT); | |
| 2733 } | |
| 2734 VN_HOLD(startdvp); | |
| 2735 error = lookuppnvp(&pn, NULL, NO_FOLLOW, dirvpp, compvpp, | |
| 2736 rootdir, startdvp, cr); | |
| 2737 } | |
| 2738 if (error == ENAMETOOLONG) { | |
| 2739 /* | |
| 2740 * This thread used a pathname > TYPICALMAXPATHLEN bytes long. | |
| 2741 */ | |
| 2742 if (error = pn_get(path, UIO_SYSSPACE, &pn)) | |
| 2743 return (error); | |
| 2744 if (pn.pn_pathlen != 0 && pathflag == URLPATH) { | |
| 2745 URLparse(pn.pn_path); | |
| 2746 if ((pn.pn_pathlen = strlen(pn.pn_path)) == 0) { | |
| 2747 pn_free(&pn); | |
| 2748 return (ENOENT); | |
| 2749 } | |
| 2750 } | |
| 2751 VN_HOLD(startdvp); | |
| 2752 error = lookuppnvp(&pn, NULL, NO_FOLLOW, dirvpp, compvpp, | |
| 2753 rootdir, startdvp, cr); | |
| 2754 pn_free(&pn); | |
| 2755 } | |
| 2756 | |
| 2757 return (error); | |
| 2758 } | |
| 2759 | |
| 2760 /* | |
| 2761 * Adapt the multicomponent lookup path depending on the pathtype | |
| 2762 */ | |
| 2763 static int | |
| 2764 MCLpath(char **path) | |
| 2765 { | |
| 2766 unsigned char c = (unsigned char)**path; | |
| 2767 | |
| 2768 /* | |
| 2769 * If the MCL path is between 0x20 and 0x7E (graphic printable | |
| 2770 * character of the US-ASCII coded character set), its a URL path, | |
| 2771 * per RFC 1738. | |
| 2772 */ | |
| 2773 if (c >= 0x20 && c <= 0x7E) | |
| 2774 return (URLPATH); | |
| 2775 | |
| 2776 /* | |
| 2777 * If the first octet of the MCL path is not an ASCII character | |
| 2778 * then it must be interpreted as a tag value that describes the | |
| 2779 * format of the remaining octets of the MCL path. | |
| 2780 * | |
| 2781 * If the first octet of the MCL path is 0x81 it is a query | |
| 2782 * for the security info. | |
| 2783 */ | |
| 2784 switch (c) { | |
| 2785 case 0x80: /* native path, i.e. MCL via mount protocol */ | |
| 2786 (*path)++; | |
| 2787 return (NATIVEPATH); | |
| 2788 case 0x81: /* security query */ | |
| 2789 (*path)++; | |
| 2790 return (SECURITY_QUERY); | |
| 2791 default: | |
| 2792 return (-1); | |
| 2793 } | |
| 2794 } | |
| 2795 | |
| 2796 #define fromhex(c) ((c >= '0' && c <= '9') ? (c - '0') : \ | |
| 2797 ((c >= 'A' && c <= 'F') ? (c - 'A' + 10) :\ | |
| 2798 ((c >= 'a' && c <= 'f') ? (c - 'a' + 10) : 0))) | |
| 2799 | |
| 2800 /* | |
| 2801 * The implementation of URLparse gaurantees that the final string will | |
| 2802 * fit in the original one. Replaces '%' occurrences followed by 2 characters | |
| 2803 * with its corresponding hexadecimal character. | |
| 2804 */ | |
| 2805 static void | |
| 2806 URLparse(char *str) | |
| 2807 { | |
| 2808 char *p, *q; | |
| 2809 | |
| 2810 p = q = str; | |
| 2811 while (*p) { | |
| 2812 *q = *p; | |
| 2813 if (*p++ == '%') { | |
| 2814 if (*p) { | |
| 2815 *q = fromhex(*p) * 16; | |
| 2816 p++; | |
| 2817 if (*p) { | |
| 2818 *q += fromhex(*p); | |
| 2819 p++; | |
| 2820 } | |
| 2821 } | |
| 2822 } | |
| 2823 q++; | |
| 2824 } | |
| 2825 *q = '\0'; | |
| 2826 } | |
| 2827 | |
| 2828 | |
| 2829 /* | |
| 2830 * Get the export information for the lookup vnode, and verify its | |
| 2831 * useable. | |
| 2832 */ | |
| 2833 int | |
| 2834 nfs_check_vpexi(vnode_t *mc_dvp, vnode_t *vp, cred_t *cr, | |
| 2835 struct exportinfo **exi) | |
| 2836 { | |
| 2837 int walk; | |
| 2838 int error = 0; | |
| 2839 | |
| 2840 *exi = nfs_vptoexi(mc_dvp, vp, cr, &walk, NULL, FALSE); | |
| 2841 if (*exi == NULL) | |
| 2842 error = EACCES; | |
| 2843 else { | |
| 2844 /* | |
| 2845 * If nosub is set for this export then | |
| 2846 * a lookup relative to the public fh | |
| 2847 * must not terminate below the | |
| 2848 * exported directory. | |
| 2849 */ | |
| 2850 if ((*exi)->exi_export.ex_flags & EX_NOSUB && walk > 0) | |
| 2851 error = EACCES; | |
| 2852 } | |
| 2853 | |
| 2854 return (error); | |
| 2855 } | |
|
2035
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2856 |
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2857 /* |
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2858 * Do the main work of handling HA-NFSv4 Resource Group failover on |
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2859 * Sun Cluster. |
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2860 * We need to detect whether any RG admin paths have been added or removed, |
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2861 * and adjust resources accordingly. |
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2862 * Currently we're using a very inefficient algorithm, ~ 2 * O(n**2). In |
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2863 * order to scale, the list and array of paths need to be held in more |
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2864 * suitable data structures. |
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2865 */ |
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2866 static void |
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2867 hanfsv4_failover(void) |
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2868 { |
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2869 int i, start_grace, numadded_paths = 0; |
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changeset
|
2870 char **added_paths = NULL; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2871 rfs4_dss_path_t *dss_path; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2872 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2873 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2874 * 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
|
2875 * away from this node. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2876 * 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
|
2877 * 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
|
2878 * 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
|
2879 * |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2880 * 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
|
2881 * any duplicates. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2882 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2883 dss_path = rfs4_dss_pathlist; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2884 do { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2885 int found = 0; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2886 char *path = dss_path->path; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2887 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2888 /* 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
|
2889 if (strcmp(path, NFS4_DSS_VAR_DIR) == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2890 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2891 continue; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2892 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2893 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2894 for (i = 0; i < rfs4_dss_numnewpaths; i++) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2895 int cmpret; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2896 size_t ncmp; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2897 char *newpath = rfs4_dss_newpaths[i]; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2898 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2899 ncmp = MAX(strlen(path), strlen(newpath)); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2900 cmpret = strncmp(path, newpath, ncmp); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2901 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2902 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2903 * Since nfsd has sorted rfs4_dss_newpaths for us, |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2904 * once the return from strncmp is negative we know |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2905 * we've passed the point where "path" should be, |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2906 * and can stop searching: "path" has been removed. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2907 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2908 if (cmpret < 0) |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2909 break; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2910 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2911 if (cmpret == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2912 found = 1; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2913 break; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2914 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2915 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2916 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2917 if (found == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2918 unsigned index = dss_path->index; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2919 rfs4_servinst_t *sip = dss_path->sip; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2920 rfs4_dss_path_t *path_next = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2921 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2922 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2923 * This path has been removed. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2924 * We must clear out the servinst reference to |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2925 * it, since it's now owned by another |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2926 * node: we should not attempt to touch it. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2927 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2928 ASSERT(dss_path == sip->dss_paths[index]); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2929 sip->dss_paths[index] = NULL; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2930 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2931 /* remove from "currently-serving" list, and destroy */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2932 remque(dss_path); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2933 kmem_free(dss_path, sizeof (rfs4_dss_path_t)); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2934 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2935 dss_path = path_next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2936 } else { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2937 /* path was found; not removed */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2938 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2939 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2940 } while (dss_path != rfs4_dss_pathlist); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2941 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2942 /* |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2943 * 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
|
2944 * to this node. |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2945 * 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
|
2946 * 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
|
2947 * 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
|
2948 * |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2949 * 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
|
2950 * |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2951 * Note: numadded_paths <= rfs4_dss_numnewpaths, which gives us |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2952 * 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
|
2953 */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2954 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2955 /* 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
|
2956 if (rfs4_dss_numnewpaths > 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2957 size_t sz = rfs4_dss_numnewpaths * sizeof (char *); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2958 added_paths = kmem_zalloc(sz, KM_SLEEP); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2959 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2960 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2961 /* 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
|
2962 for (i = 0; i < rfs4_dss_numnewpaths; i++) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2963 int found = 0; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2964 char *newpath = rfs4_dss_newpaths[i]; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2965 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2966 dss_path = rfs4_dss_pathlist; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2967 do { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2968 char *path = dss_path->path; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2969 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2970 /* used only for non-HA */ |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2971 if (strcmp(path, NFS4_DSS_VAR_DIR) == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2972 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2973 continue; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2974 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2975 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2976 if (strncmp(path, newpath, strlen(path)) == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2977 found = 1; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2978 break; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2979 } |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2980 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2981 dss_path = dss_path->next; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2982 } while (dss_path != rfs4_dss_pathlist); |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2983 |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2984 if (found == 0) { |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2985 added_paths[numadded_paths] = newpath; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
changeset
|
2986 numadded_paths++; |
|
a29bc457bcb9
PSARC/2006/313 NFSv4: nfsd "-s" distributed stable storage
calum
parents:
1610
diff
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|
2987 } |
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2988 } |
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2989 |
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2990 /* did we find any added paths? */ |
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2991 if (numadded_paths > 0) { |
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2992 /* create a new server instance, and start its grace period */ |
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2993 start_grace = 1; |
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2994 rfs4_servinst_create(start_grace, numadded_paths, added_paths); |
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2995 |
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2996 /* read in the stable storage state from these paths */ |
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2997 rfs4_dss_readstate(numadded_paths, added_paths); |
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2998 |
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2999 /* |
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3000 * Multiple failovers during a grace period will cause |
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3001 * clients of the same resource group to be partitioned |
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3002 * into different server instances, with different |
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3003 * grace periods. Since clients of the same resource |
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3004 * group must be subject to the same grace period, |
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3005 * we need to reset all currently active grace periods. |
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3006 */ |
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3007 rfs4_grace_reset_all(); |
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3008 } |
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3009 |
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3010 if (rfs4_dss_numnewpaths > 0) |
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3011 kmem_free(added_paths, rfs4_dss_numnewpaths * sizeof (char *)); |
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3012 } |