17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 51cc55349Srmesta * Common Development and Distribution License (the "License"). 61cc55349Srmesta * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 2189621fe1SMarcel Telka 227c478bd9Sstevel@tonic-gate /* 2389621fe1SMarcel Telka * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved. 24f7db5903SVitaliy Gusev * Copyright 2016 Nexenta Systems, Inc. All rights reserved. 251a444326SJason King * Copyright 2016 Jason King. 26*0dfe541eSEvan Layton * Copyright 2018 Nexenta Systems, Inc. All rights reserved. 277c478bd9Sstevel@tonic-gate */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 30b4203d75SMarcel Telka /* All Rights Reserved */ 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #ifndef _NFS_EXPORT_H 337c478bd9Sstevel@tonic-gate #define _NFS_EXPORT_H 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #include <nfs/nfs_sec.h> 361cc55349Srmesta #include <nfs/auth.h> 377c478bd9Sstevel@tonic-gate #include <sys/vnode.h> 387c478bd9Sstevel@tonic-gate #include <nfs/nfs4.h> 39b89a8333Snatalie li - Sun Microsystems - Irvine United States #include <sys/kiconv.h> 4071da0c32SMarcel Telka #include <sys/avl.h> 41*0dfe541eSEvan Layton #include <sys/zone.h> 42*0dfe541eSEvan Layton 43*0dfe541eSEvan Layton #ifdef _KERNEL 44*0dfe541eSEvan Layton #include <sys/pkp_hash.h> /* for PKP_HASH_SIZE */ 45*0dfe541eSEvan Layton #endif /* _KERNEL */ 467c478bd9Sstevel@tonic-gate 477c478bd9Sstevel@tonic-gate #ifdef __cplusplus 487c478bd9Sstevel@tonic-gate extern "C" { 497c478bd9Sstevel@tonic-gate #endif 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate /* 527c478bd9Sstevel@tonic-gate * nfs pseudo flavor number is owned by IANA. Need to make sure the 537c478bd9Sstevel@tonic-gate * Solaris specific NFS_FLAVOR_NOMAP number will not overlap with any 547c478bd9Sstevel@tonic-gate * new IANA defined pseudo flavor numbers. The chance for the overlap 557c478bd9Sstevel@tonic-gate * is very small since the growth of new flavor numbers is expected 567c478bd9Sstevel@tonic-gate * to be limited. 577c478bd9Sstevel@tonic-gate */ 587c478bd9Sstevel@tonic-gate #define NFS_FLAVOR_NOMAP 999999 /* no nfs flavor mapping */ 597c478bd9Sstevel@tonic-gate 608a429e7eSms /* 618a429e7eSms * As duplicate flavors can be passed into exportfs in the arguments, we 628a429e7eSms * allocate a cleaned up array with non duplicate flavors on the stack. 638a429e7eSms * So we need to know how much to allocate. 648a429e7eSms */ 658a429e7eSms #define MAX_FLAVORS 6 /* none, sys, dh, krb5, krb5i krb5p */ 668a429e7eSms 677c478bd9Sstevel@tonic-gate /* 687c478bd9Sstevel@tonic-gate * Note: exported_lock is currently used to ensure the integrity of 697c478bd9Sstevel@tonic-gate * the secinfo fields. 707c478bd9Sstevel@tonic-gate */ 717c478bd9Sstevel@tonic-gate struct secinfo { 727c478bd9Sstevel@tonic-gate seconfig_t s_secinfo; /* /etc/nfssec.conf entry */ 737c478bd9Sstevel@tonic-gate unsigned int s_flags; /* flags (see below) */ 748a429e7eSms int32_t s_refcnt; /* reference count for tracking */ 757c478bd9Sstevel@tonic-gate /* how many children (self included) */ 767c478bd9Sstevel@tonic-gate /* use this flavor. */ 77f7db5903SVitaliy Gusev int s_window; /* window */ 78b89a8333Snatalie li - Sun Microsystems - Irvine United States uint_t s_rootid; /* UID to use for authorized roots */ 797c478bd9Sstevel@tonic-gate int s_rootcnt; /* count of root names */ 807c478bd9Sstevel@tonic-gate caddr_t *s_rootnames; /* array of root names */ 817c478bd9Sstevel@tonic-gate /* they are strings for AUTH_DES and */ 827c478bd9Sstevel@tonic-gate /* rpc_gss_principal_t for RPCSEC_GSS */ 837c478bd9Sstevel@tonic-gate }; 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32 867c478bd9Sstevel@tonic-gate struct secinfo32 { 877c478bd9Sstevel@tonic-gate seconfig32_t s_secinfo; /* /etc/nfssec.conf entry */ 887c478bd9Sstevel@tonic-gate uint32_t s_flags; /* flags (see below) */ 898a429e7eSms int32_t s_refcnt; /* reference count for tracking */ 907c478bd9Sstevel@tonic-gate /* how many children (self included) */ 917c478bd9Sstevel@tonic-gate /* use this flavor. */ 92f7db5903SVitaliy Gusev int32_t s_window; /* window */ 93b89a8333Snatalie li - Sun Microsystems - Irvine United States uint32_t s_rootid; /* UID to use for authorized roots */ 947c478bd9Sstevel@tonic-gate int32_t s_rootcnt; /* count of root names */ 957c478bd9Sstevel@tonic-gate caddr32_t s_rootnames; /* array of root names */ 967c478bd9Sstevel@tonic-gate /* they are strings for AUTH_DES and */ 977c478bd9Sstevel@tonic-gate /* rpc_gss_principal_t for RPCSEC_GSS */ 987c478bd9Sstevel@tonic-gate }; 997c478bd9Sstevel@tonic-gate #endif /* _SYSCALL32 */ 1007c478bd9Sstevel@tonic-gate 1017c478bd9Sstevel@tonic-gate /* 1027c478bd9Sstevel@tonic-gate * security negotiation related 1037c478bd9Sstevel@tonic-gate */ 1047c478bd9Sstevel@tonic-gate 1057c478bd9Sstevel@tonic-gate #define SEC_QUERY 0x01 /* query sec modes */ 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate struct sec_ol { 1087c478bd9Sstevel@tonic-gate int sec_flags; /* security nego flags */ 1097c478bd9Sstevel@tonic-gate uint_t sec_index; /* index into sec flavor array */ 1107c478bd9Sstevel@tonic-gate }; 1117c478bd9Sstevel@tonic-gate 1127c478bd9Sstevel@tonic-gate /* 1137c478bd9Sstevel@tonic-gate * Per-mode flags (secinfo.s_flags) 1147c478bd9Sstevel@tonic-gate */ 1157c478bd9Sstevel@tonic-gate #define M_RO 0x01 /* exported ro to all */ 1167c478bd9Sstevel@tonic-gate #define M_ROL 0x02 /* exported ro to all listed */ 1177c478bd9Sstevel@tonic-gate #define M_RW 0x04 /* exported rw to all */ 1187c478bd9Sstevel@tonic-gate #define M_RWL 0x08 /* exported ro to all listed */ 1197c478bd9Sstevel@tonic-gate #define M_ROOT 0x10 /* root list is defined */ 1207c478bd9Sstevel@tonic-gate #define M_4SEC_EXPORTED 0x20 /* this is an explicitly shared flavor */ 121b89a8333Snatalie li - Sun Microsystems - Irvine United States #define M_NONE 0x40 /* none list is defined */ 1225cb0d679SMarcel Telka #define M_MAP 0x80 /* uidmap and/or gidmap is defined */ 1237c478bd9Sstevel@tonic-gate 1247c478bd9Sstevel@tonic-gate /* invalid secinfo reference count */ 1257c478bd9Sstevel@tonic-gate #define SEC_REF_INVALID(p) ((p)->s_refcnt < 1) 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate /* last secinfo reference */ 1287c478bd9Sstevel@tonic-gate #define SEC_REF_LAST(p) ((p)->s_refcnt == 1) 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate /* sec flavor explicitly shared for the exported node */ 1317c478bd9Sstevel@tonic-gate #define SEC_REF_EXPORTED(p) ((p)->s_flags & M_4SEC_EXPORTED) 1327c478bd9Sstevel@tonic-gate 1337c478bd9Sstevel@tonic-gate /* the only reference count left is for referring itself */ 1347c478bd9Sstevel@tonic-gate #define SEC_REF_SELF(p) (SEC_REF_LAST(p) && SEC_REF_EXPORTED(p)) 1357c478bd9Sstevel@tonic-gate 1367c478bd9Sstevel@tonic-gate /* 1377c478bd9Sstevel@tonic-gate * The export information passed to exportfs() (Version 2) 1387c478bd9Sstevel@tonic-gate */ 1397c478bd9Sstevel@tonic-gate #define EX_CURRENT_VERSION 2 /* current version of exportdata struct */ 1407c478bd9Sstevel@tonic-gate 1417c478bd9Sstevel@tonic-gate struct exportdata { 1427c478bd9Sstevel@tonic-gate int ex_version; /* structure version */ 1437c478bd9Sstevel@tonic-gate char *ex_path; /* exported path */ 1447c478bd9Sstevel@tonic-gate size_t ex_pathlen; /* path length */ 1457c478bd9Sstevel@tonic-gate int ex_flags; /* flags */ 1467c478bd9Sstevel@tonic-gate unsigned int ex_anon; /* uid for unauthenticated requests */ 1477c478bd9Sstevel@tonic-gate int ex_seccnt; /* count of security modes */ 1487c478bd9Sstevel@tonic-gate struct secinfo *ex_secinfo; /* security mode info */ 1497c478bd9Sstevel@tonic-gate char *ex_index; /* index file for public filesystem */ 1507c478bd9Sstevel@tonic-gate char *ex_log_buffer; /* path to logging buffer file */ 1517c478bd9Sstevel@tonic-gate size_t ex_log_bufferlen; /* buffer file path len */ 1527c478bd9Sstevel@tonic-gate char *ex_tag; /* tag used to identify log config */ 1537c478bd9Sstevel@tonic-gate size_t ex_taglen; /* tag length */ 1547c478bd9Sstevel@tonic-gate }; 1557c478bd9Sstevel@tonic-gate 1567c478bd9Sstevel@tonic-gate #ifdef _SYSCALL32 1577c478bd9Sstevel@tonic-gate struct exportdata32 { 1587c478bd9Sstevel@tonic-gate int32_t ex_version; /* structure version */ 1597c478bd9Sstevel@tonic-gate caddr32_t ex_path; /* exported path */ 1607c478bd9Sstevel@tonic-gate int32_t ex_pathlen; /* path length */ 1617c478bd9Sstevel@tonic-gate int32_t ex_flags; /* flags */ 1627c478bd9Sstevel@tonic-gate uint32_t ex_anon; /* uid for unauthenticated requests */ 1637c478bd9Sstevel@tonic-gate int32_t ex_seccnt; /* count of security modes */ 1647c478bd9Sstevel@tonic-gate caddr32_t ex_secinfo; /* security mode info */ 1657c478bd9Sstevel@tonic-gate caddr32_t ex_index; /* index file for public filesystem */ 1667c478bd9Sstevel@tonic-gate caddr32_t ex_log_buffer; /* path to logging buffer file */ 1677c478bd9Sstevel@tonic-gate int32_t ex_log_bufferlen; /* buffer file path len */ 1687c478bd9Sstevel@tonic-gate caddr32_t ex_tag; /* tag used to identify log config */ 1697c478bd9Sstevel@tonic-gate int32_t ex_taglen; /* tag length */ 1707c478bd9Sstevel@tonic-gate }; 1717c478bd9Sstevel@tonic-gate #endif /* _SYSCALL32 */ 1727c478bd9Sstevel@tonic-gate 1737c478bd9Sstevel@tonic-gate /* 1747c478bd9Sstevel@tonic-gate * exported vfs flags. 1757c478bd9Sstevel@tonic-gate */ 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate #define EX_NOSUID 0x01 /* exported with unsetable set[ug]ids */ 1787c478bd9Sstevel@tonic-gate #define EX_ACLOK 0x02 /* exported with maximal access if acl exists */ 1797c478bd9Sstevel@tonic-gate #define EX_PUBLIC 0x04 /* exported with public filehandle */ 1807c478bd9Sstevel@tonic-gate #define EX_NOSUB 0x08 /* no nfs_getfh or MCL below export point */ 1817c478bd9Sstevel@tonic-gate #define EX_INDEX 0x10 /* exported with index file specified */ 1827c478bd9Sstevel@tonic-gate #define EX_LOG 0x20 /* logging enabled */ 1837c478bd9Sstevel@tonic-gate #define EX_LOG_ALLOPS 0x40 /* logging of all RPC operations enabled */ 1847c478bd9Sstevel@tonic-gate /* by default only operations which affect */ 1857c478bd9Sstevel@tonic-gate /* transaction logging are enabled */ 1867c478bd9Sstevel@tonic-gate #define EX_PSEUDO 0x80 /* pseudo filesystem export */ 1877c478bd9Sstevel@tonic-gate #ifdef VOLATILE_FH_TEST 1887c478bd9Sstevel@tonic-gate #define EX_VOLFH 0x100 /* XXX nfsv4 fh may expire anytime */ 1897c478bd9Sstevel@tonic-gate #define EX_VOLRNM 0x200 /* XXX nfsv4 fh expire at rename */ 1907c478bd9Sstevel@tonic-gate #define EX_VOLMIG 0x400 /* XXX nfsv4 fh expire at migration */ 1917c478bd9Sstevel@tonic-gate #define EX_NOEXPOPEN 0x800 /* XXX nfsv4 fh no expire with open */ 1927c478bd9Sstevel@tonic-gate #endif /* VOLATILE_FH_TEST */ 1937c478bd9Sstevel@tonic-gate 194b89a8333Snatalie li - Sun Microsystems - Irvine United States #define EX_CHARMAP 0x1000 /* NFS may need a character set conversion */ 1951a444326SJason King #define EX_NOACLFAB 0x2000 /* If set, NFSv2 and v3 servers won't */ 1961a444326SJason King /* fabricate an aclent_t ACL on file systems */ 1971a444326SJason King /* that don't support aclent_t ACLs */ 198f7db5903SVitaliy Gusev #define EX_NOHIDE 0x4000 /* traversable from exported parent */ 199b89a8333Snatalie li - Sun Microsystems - Irvine United States 2007c478bd9Sstevel@tonic-gate #ifdef _KERNEL 2017c478bd9Sstevel@tonic-gate 2027c478bd9Sstevel@tonic-gate #define RPC_IDEMPOTENT 0x1 /* idempotent or not */ 2037c478bd9Sstevel@tonic-gate /* 2047c478bd9Sstevel@tonic-gate * Be very careful about which NFS procedures get the RPC_ALLOWANON bit. 2055cb0d679SMarcel Telka * Right now, if this bit is on, we ignore the results of per NFS request 2067c478bd9Sstevel@tonic-gate * access control. 2077c478bd9Sstevel@tonic-gate */ 2087c478bd9Sstevel@tonic-gate #define RPC_ALLOWANON 0x2 /* allow anonymous access */ 2097c478bd9Sstevel@tonic-gate #define RPC_MAPRESP 0x4 /* use mapped response buffer */ 2107c478bd9Sstevel@tonic-gate #define RPC_AVOIDWORK 0x8 /* do work avoidance for dups */ 2117c478bd9Sstevel@tonic-gate #define RPC_PUBLICFH_OK 0x10 /* allow use of public filehandle */ 2127c478bd9Sstevel@tonic-gate 2137c478bd9Sstevel@tonic-gate /* 2147c478bd9Sstevel@tonic-gate * RPC_ALL is an or of all above bits to be used with "don't care" 2157c478bd9Sstevel@tonic-gate * nfsv4 ops. The flags of an nfsv4 request is the bit-AND of the 2167c478bd9Sstevel@tonic-gate * per-op flags. 2177c478bd9Sstevel@tonic-gate */ 2187c478bd9Sstevel@tonic-gate #define RPC_ALL (RPC_IDEMPOTENT|RPC_ALLOWANON|RPC_AVOIDWORK|RPC_PUBLICFH_OK) 2197c478bd9Sstevel@tonic-gate 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate #ifdef VOLATILE_FH_TEST 2227c478bd9Sstevel@tonic-gate struct ex_vol_rename { 2237c478bd9Sstevel@tonic-gate nfs_fh4_fmt_t vrn_fh_fmt; 2247c478bd9Sstevel@tonic-gate struct ex_vol_rename *vrn_next; 2257c478bd9Sstevel@tonic-gate }; 2267c478bd9Sstevel@tonic-gate #endif /* VOLATILE_FH_TEST */ 2277c478bd9Sstevel@tonic-gate 2283ccecb66SThomas Haynes /* 22971da0c32SMarcel Telka * An auth cache client entry. This is the umbrella structure and contains all 23071da0c32SMarcel Telka * related auth_cache entries in the authc_tree AVL tree. 23171da0c32SMarcel Telka */ 23271da0c32SMarcel Telka struct auth_cache_clnt { 23371da0c32SMarcel Telka avl_node_t authc_link; 23471da0c32SMarcel Telka struct netbuf authc_addr; /* address of the client */ 23571da0c32SMarcel Telka krwlock_t authc_lock; /* protects authc_tree */ 23671da0c32SMarcel Telka avl_tree_t authc_tree; /* auth_cache entries */ 23771da0c32SMarcel Telka }; 23871da0c32SMarcel Telka 23971da0c32SMarcel Telka /* 24071da0c32SMarcel Telka * An auth cache entry can exist in 6 states. 24171da0c32SMarcel Telka * 24271da0c32SMarcel Telka * A NEW entry was recently allocated and added to the cache. It does not 24371da0c32SMarcel Telka * contain the valid auth state yet. 2443ccecb66SThomas Haynes * 24571da0c32SMarcel Telka * A WAITING entry is one which is actively engaging the user land mountd code 24671da0c32SMarcel Telka * to authenticate or re-authenticate it. The auth state might not be valid 24771da0c32SMarcel Telka * yet. The other threads should wait on auth_cv until the retrieving thread 24871da0c32SMarcel Telka * finishes the retrieval and changes the auth cache entry to FRESH, or NEW (in 24971da0c32SMarcel Telka * a case this entry had no valid auth state yet). 2503ccecb66SThomas Haynes * 25171da0c32SMarcel Telka * A REFRESHING entry is one which is actively engaging the user land mountd 25271da0c32SMarcel Telka * code to re-authenticate the cache entry. There is currently no other thread 25371da0c32SMarcel Telka * waiting for the results of the refresh. 2543ccecb66SThomas Haynes * 25571da0c32SMarcel Telka * A FRESH entry is one which is valid (it is either newly retrieved or has 25671da0c32SMarcel Telka * been refreshed at least once). 2573ccecb66SThomas Haynes * 25871da0c32SMarcel Telka * A STALE entry is one which has been detected to be too old. The transition 25971da0c32SMarcel Telka * from FRESH to STALE prevents multiple threads from submitting refresh 26071da0c32SMarcel Telka * requests. 2613ccecb66SThomas Haynes * 26271da0c32SMarcel Telka * An INVALID entry is one which was either STALE or REFRESHING and was deleted 26371da0c32SMarcel Telka * out of the encapsulating exi. Since we can't delete it yet, we mark it as 26471da0c32SMarcel Telka * INVALID, which lets the refresh thread know not to work on it and free it 26571da0c32SMarcel Telka * instead. 26671da0c32SMarcel Telka * 26771da0c32SMarcel Telka * Note that the auth state of the entry is valid, even if the entry is STALE. 26871da0c32SMarcel Telka * Just as you can eat stale bread, you can consume a stale cache entry. The 26971da0c32SMarcel Telka * only time the contents change could be during the transition from REFRESHING 27071da0c32SMarcel Telka * or WAITING to FRESH. 27171da0c32SMarcel Telka * 27271da0c32SMarcel Telka * Valid state transitions: 27371da0c32SMarcel Telka * 27471da0c32SMarcel Telka * alloc 27571da0c32SMarcel Telka * | 27671da0c32SMarcel Telka * v 27771da0c32SMarcel Telka * +-----+ 27871da0c32SMarcel Telka * +--->| NEW |------>free 27971da0c32SMarcel Telka * | +-----+ 28071da0c32SMarcel Telka * | | 28171da0c32SMarcel Telka * | v 28271da0c32SMarcel Telka * | +---------+ 28371da0c32SMarcel Telka * +<-| WAITING | 28471da0c32SMarcel Telka * ^ +---------+ 28571da0c32SMarcel Telka * | | 28671da0c32SMarcel Telka * | v 28771da0c32SMarcel Telka * | +<--------------------------+<---------------+ 28871da0c32SMarcel Telka * | | ^ | 28971da0c32SMarcel Telka * | v | | 29071da0c32SMarcel Telka * | +-------+ +-------+ +------------+ +---------+ 29171da0c32SMarcel Telka * +---| FRESH |--->| STALE |--->| REFRESHING |--->| WAITING | 29271da0c32SMarcel Telka * +-------+ +-------+ +------------+ +---------+ 29371da0c32SMarcel Telka * | | | 29471da0c32SMarcel Telka * | v | 29571da0c32SMarcel Telka * v +---------+ | 29671da0c32SMarcel Telka * free<-----| INVALID |<--------+ 29771da0c32SMarcel Telka * +---------+ 2983ccecb66SThomas Haynes */ 2993ccecb66SThomas Haynes typedef enum auth_state { 3003ccecb66SThomas Haynes NFS_AUTH_FRESH, 3013ccecb66SThomas Haynes NFS_AUTH_STALE, 3023ccecb66SThomas Haynes NFS_AUTH_REFRESHING, 30371da0c32SMarcel Telka NFS_AUTH_INVALID, 30471da0c32SMarcel Telka NFS_AUTH_NEW, 30571da0c32SMarcel Telka NFS_AUTH_WAITING 3063ccecb66SThomas Haynes } auth_state_t; 3073ccecb66SThomas Haynes 3087c478bd9Sstevel@tonic-gate /* 3097c478bd9Sstevel@tonic-gate * An authorization cache entry 3103ccecb66SThomas Haynes * 3113ccecb66SThomas Haynes * Either the state in auth_state will protect the 3123ccecb66SThomas Haynes * contents or auth_lock must be held. 3137c478bd9Sstevel@tonic-gate */ 3147c478bd9Sstevel@tonic-gate struct auth_cache { 31571da0c32SMarcel Telka avl_node_t auth_link; 31671da0c32SMarcel Telka struct auth_cache_clnt *auth_clnt; 3177c478bd9Sstevel@tonic-gate int auth_flavor; 31812fb3699SMarcel Telka cred_t *auth_clnt_cred; 3195cb0d679SMarcel Telka uid_t auth_srv_uid; 3205cb0d679SMarcel Telka gid_t auth_srv_gid; 32189621fe1SMarcel Telka uint_t auth_srv_ngids; 32289621fe1SMarcel Telka gid_t *auth_srv_gids; 3237c478bd9Sstevel@tonic-gate int auth_access; 3247c478bd9Sstevel@tonic-gate time_t auth_time; 3253ccecb66SThomas Haynes time_t auth_freshness; 3263ccecb66SThomas Haynes auth_state_t auth_state; 3273ccecb66SThomas Haynes kmutex_t auth_lock; 32871da0c32SMarcel Telka kcondvar_t auth_cv; 3297c478bd9Sstevel@tonic-gate }; 3307c478bd9Sstevel@tonic-gate 3317c478bd9Sstevel@tonic-gate #define AUTH_TABLESIZE 32 3327c478bd9Sstevel@tonic-gate 3337c478bd9Sstevel@tonic-gate /* 3347c478bd9Sstevel@tonic-gate * Structure containing log file meta-data. 3357c478bd9Sstevel@tonic-gate */ 3367c478bd9Sstevel@tonic-gate struct log_file { 3377c478bd9Sstevel@tonic-gate unsigned int lf_flags; /* flags (see below) */ 3387c478bd9Sstevel@tonic-gate int lf_writers; /* outstanding writers */ 3397c478bd9Sstevel@tonic-gate int lf_refcnt; /* references to this struct */ 3407c478bd9Sstevel@tonic-gate caddr_t lf_path; /* buffer file location */ 3417c478bd9Sstevel@tonic-gate vnode_t *lf_vp; /* vnode for the buffer file */ 3427c478bd9Sstevel@tonic-gate kmutex_t lf_lock; 3437c478bd9Sstevel@tonic-gate kcondvar_t lf_cv_waiters; 3447c478bd9Sstevel@tonic-gate }; 3457c478bd9Sstevel@tonic-gate 3467c478bd9Sstevel@tonic-gate /* 3477c478bd9Sstevel@tonic-gate * log_file and log_buffer flags. 3487c478bd9Sstevel@tonic-gate */ 3497c478bd9Sstevel@tonic-gate #define L_WAITING 0x01 /* flush of in-core data to stable */ 3507c478bd9Sstevel@tonic-gate /* storage in progress */ 3517c478bd9Sstevel@tonic-gate #define L_PRINTED 0x02 /* error message printed to console */ 3527c478bd9Sstevel@tonic-gate #define L_ERROR 0x04 /* error condition detected */ 3537c478bd9Sstevel@tonic-gate 3547c478bd9Sstevel@tonic-gate /* 3557c478bd9Sstevel@tonic-gate * The logging buffer information. 3567c478bd9Sstevel@tonic-gate * This structure may be shared by multiple exportinfo structures, 3577c478bd9Sstevel@tonic-gate * if they share the same buffer file. 3587c478bd9Sstevel@tonic-gate * This structure contains the basic information about the buffer, such 3597c478bd9Sstevel@tonic-gate * as it's location in the filesystem. 3607c478bd9Sstevel@tonic-gate * 3617c478bd9Sstevel@tonic-gate * 'lb_lock' protects all the fields in this structure except for 'lb_path', 3627c478bd9Sstevel@tonic-gate * and 'lb_next'. 3637c478bd9Sstevel@tonic-gate * 'lb_path' is a write-once/read-many field which needs no locking, it is 3647c478bd9Sstevel@tonic-gate * set before the structure is linked to any exportinfo structure. 3657c478bd9Sstevel@tonic-gate * 'lb_next' is protected by the log_buffer_list_lock. 3667c478bd9Sstevel@tonic-gate */ 3677c478bd9Sstevel@tonic-gate struct log_buffer { 3687c478bd9Sstevel@tonic-gate unsigned int lb_flags; /* L_ONLIST set? */ 3697c478bd9Sstevel@tonic-gate int lb_refcnt; /* references to this struct */ 3707c478bd9Sstevel@tonic-gate unsigned int lb_rec_id; /* used to generate unique id */ 3717c478bd9Sstevel@tonic-gate caddr_t lb_path; /* buffer file pathname */ 3727c478bd9Sstevel@tonic-gate struct log_file *lb_logfile; /* points to log_file structure */ 3737c478bd9Sstevel@tonic-gate kmutex_t lb_lock; 3747c478bd9Sstevel@tonic-gate struct log_buffer *lb_next; 3757c478bd9Sstevel@tonic-gate kcondvar_t lb_cv_waiters; 3767c478bd9Sstevel@tonic-gate caddr_t lb_records; /* linked list of records to write */ 3777c478bd9Sstevel@tonic-gate int lb_num_recs; /* # of records to write */ 3787c478bd9Sstevel@tonic-gate ssize_t lb_size_queued; /* number of bytes queued for write */ 3797c478bd9Sstevel@tonic-gate }; 3807c478bd9Sstevel@tonic-gate 3817c478bd9Sstevel@tonic-gate #define LOG_BUFFER_HOLD(lbp) { \ 3827c478bd9Sstevel@tonic-gate mutex_enter(&(lbp)->lb_lock); \ 3837c478bd9Sstevel@tonic-gate (lbp)->lb_refcnt++; \ 3847c478bd9Sstevel@tonic-gate mutex_exit(&(lbp)->lb_lock); \ 3857c478bd9Sstevel@tonic-gate } 3867c478bd9Sstevel@tonic-gate 3877c478bd9Sstevel@tonic-gate #define LOG_BUFFER_RELE(lbp) { \ 3887c478bd9Sstevel@tonic-gate log_buffer_rele(lbp); \ 3897c478bd9Sstevel@tonic-gate } 3907c478bd9Sstevel@tonic-gate 391b89a8333Snatalie li - Sun Microsystems - Irvine United States /* 392b89a8333Snatalie li - Sun Microsystems - Irvine United States * Structure for character set conversion mapping based on client address. 393b89a8333Snatalie li - Sun Microsystems - Irvine United States */ 394b89a8333Snatalie li - Sun Microsystems - Irvine United States struct charset_cache { 395b89a8333Snatalie li - Sun Microsystems - Irvine United States struct charset_cache *next; 396b89a8333Snatalie li - Sun Microsystems - Irvine United States kiconv_t inbound; 397b89a8333Snatalie li - Sun Microsystems - Irvine United States kiconv_t outbound; 398b89a8333Snatalie li - Sun Microsystems - Irvine United States struct sockaddr client_addr; 399b89a8333Snatalie li - Sun Microsystems - Irvine United States }; 400b89a8333Snatalie li - Sun Microsystems - Irvine United States 401992d2facSpf /* Forward declarations */ 402992d2facSpf struct exportinfo; 403992d2facSpf struct exp_visible; 4042f172c55SRobert Thurlow struct svc_req; 405992d2facSpf 406992d2facSpf /* 407992d2facSpf * Treenodes are used to build tree representing every node which is part 4083f238301SPavel Filipensky * of nfs server pseudo namespace. They are connected with both exportinfo 4093f238301SPavel Filipensky * and exp_visible struct. They were introduced to avoid lookup of ".." 4103f238301SPavel Filipensky * in the underlying file system during unshare, which was failing if the 4113f238301SPavel Filipensky * file system was forcibly unmounted or if the directory was removed. 4123f238301SPavel Filipensky * One exp_visible_t can be shared via several treenode_t, i.e. 4133f238301SPavel Filipensky * different tree_vis can point to the same exp_visible_t. 4143f238301SPavel Filipensky * This will happen if some directory is on two different shared paths: 4153f238301SPavel Filipensky * E.g. after share /tmp/a/b1 and share /tmp/a/b2 there will be two treenodes 4163f238301SPavel Filipensky * corresponding to /tmp/a and both will have same value in tree_vis. 417992d2facSpf * 418992d2facSpf * 419992d2facSpf * 420992d2facSpf * NEW DATA STRUCT ORIGINAL DATA STRUCT 421992d2facSpf * 422992d2facSpf * ns_root +---+ +----------+ 423992d2facSpf * | / | |PSEUDO EXP|-->+---+ +---+ +---+ 424992d2facSpf * +---+--------- ----+----------+ | a |-->| k |-->| b | 425992d2facSpf * /\ +---+ +---+ +---+ 426992d2facSpf * / \ . . . 427992d2facSpf * +---+...\......... ..................... . . 428992d2facSpf * *| a | \ +----------+ . . 429992d2facSpf * +---+-----\------- ----|REAL EXP a| . . 430992d2facSpf * / \ +----------+ . . 431992d2facSpf * / +===+... ............................. . 432992d2facSpf * / *| k | +----------+ . 433992d2facSpf * / +===+--- ----|REAL EXP k| . 434992d2facSpf * / +----------+ . 435992d2facSpf * +===+................ ..................................... 436992d2facSpf * *| b | +----------+ 437992d2facSpf * +===+---------------- ----|REAL EXP b|-->+---+ 438992d2facSpf * \ +----------+ | d | 439992d2facSpf * +===+............. ...................+---+ 440992d2facSpf * | d | +----------+ 441992d2facSpf * +===+------------- ----|PSEUDO EXP|-->+---+ +---+ 442992d2facSpf * / +----------+ | e |-->| g | 443992d2facSpf * +---+................. ...................+---+ +---+ 444992d2facSpf * | e | . 445992d2facSpf * +---+ . 446992d2facSpf * \ . 447992d2facSpf * +---+.............. ............................ 448992d2facSpf * *| g | +----------+ 449992d2facSpf * +---+-------------- ----|REAL EXP g| 450992d2facSpf * +----------+ 451992d2facSpf * 452992d2facSpf * 453992d2facSpf * 454992d2facSpf * +===+ +---+ +---+ 455992d2facSpf * | b |..mountpoint | e |..directory/file *| a |..node is shared 456992d2facSpf * +===+ (VROOT) +---+ +---+ 457992d2facSpf * 458992d2facSpf * 459992d2facSpf * Bi-directional interconnect: 460992d2facSpf * treenode_t::tree_exi --------- exportinfo_t::exi_tree 4613f238301SPavel Filipensky * One-way direction connection: 4623f238301SPavel Filipensky * treenode_t::tree_vis .........> exp_visible_t 463992d2facSpf */ 464c076b414SPavel Filipensky /* Access to treenode_t is under protection of exported_lock RW_LOCK */ 465992d2facSpf typedef struct treenode { 466992d2facSpf /* support for generic n-ary trees */ 467992d2facSpf struct treenode *tree_parent; 468992d2facSpf struct treenode *tree_child_first; 469992d2facSpf struct treenode *tree_sibling; /* next sibling */ 470992d2facSpf /* private, nfs specific part */ 471992d2facSpf struct exportinfo *tree_exi; 472992d2facSpf struct exp_visible *tree_vis; 473992d2facSpf } treenode_t; 474992d2facSpf 475992d2facSpf /* 476*0dfe541eSEvan Layton * Now that we have links to chase, we can get the zone rootvp just from 477*0dfe541eSEvan Layton * an export. No current-zone-context needed. 478*0dfe541eSEvan Layton */ 479*0dfe541eSEvan Layton #define EXI_TO_ZONEROOTVP(exi) ((exi)->exi_ne->exi_root->exi_vp) 480*0dfe541eSEvan Layton 481*0dfe541eSEvan Layton /* 482*0dfe541eSEvan Layton * TREE_ROOT checks if the node corresponds to a filesystem root or 483*0dfe541eSEvan Layton * the zone's root directory. 484992d2facSpf * TREE_EXPORTED checks if the node is explicitly shared 485992d2facSpf */ 486992d2facSpf 487992d2facSpf #define TREE_ROOT(t) \ 488*0dfe541eSEvan Layton ((t)->tree_exi != NULL && \ 489*0dfe541eSEvan Layton (((t)->tree_exi->exi_vp->v_flag & VROOT) || \ 490*0dfe541eSEvan Layton VN_CMP(EXI_TO_ZONEROOTVP((t)->tree_exi), (t)->tree_exi->exi_vp))) 491992d2facSpf 492992d2facSpf #define TREE_EXPORTED(t) \ 493992d2facSpf ((t)->tree_exi && !PSEUDO((t)->tree_exi)) 494992d2facSpf 4950616fd7fSPavel Filipensky #define EXPTABLESIZE 256 4960616fd7fSPavel Filipensky 4970616fd7fSPavel Filipensky struct exp_hash { 4980616fd7fSPavel Filipensky struct exportinfo *prev; /* ptr to the previous exportinfo */ 4990616fd7fSPavel Filipensky struct exportinfo *next; /* ptr to the next exportinfo */ 5000616fd7fSPavel Filipensky struct exportinfo **bckt; /* backpointer to the hash bucket */ 5010616fd7fSPavel Filipensky }; 5027c478bd9Sstevel@tonic-gate 5037c478bd9Sstevel@tonic-gate /* 5047c478bd9Sstevel@tonic-gate * A node associated with an export entry on the 5057c478bd9Sstevel@tonic-gate * list of exported filesystems. 5067c478bd9Sstevel@tonic-gate * 5077c478bd9Sstevel@tonic-gate * exi_count+exi_lock protects an individual exportinfo from being freed 5087c478bd9Sstevel@tonic-gate * when in use. 5093ccecb66SThomas Haynes * 5107c478bd9Sstevel@tonic-gate * You must have the writer lock on exported_lock to add/delete an exportinfo 5117c478bd9Sstevel@tonic-gate * structure to/from the list. 5127c478bd9Sstevel@tonic-gate * 5137c478bd9Sstevel@tonic-gate * exi_volatile_dev maps to VSW_VOLATILEDEV. It means that the 5147c478bd9Sstevel@tonic-gate * underlying fs devno can change on each mount. When set, the server 5157c478bd9Sstevel@tonic-gate * should not use va_fsid for a GETATTR(FATTR4_FSID) reply. It must 5167c478bd9Sstevel@tonic-gate * use exi_fsid because it is guaranteed to be persistent. This isn't 5177c478bd9Sstevel@tonic-gate * in any way related to NFS4 volatile filehandles. 51871da0c32SMarcel Telka * 51971da0c32SMarcel Telka * The exi_cache_lock protects the exi_cache AVL trees. 5207c478bd9Sstevel@tonic-gate */ 5217c478bd9Sstevel@tonic-gate struct exportinfo { 5227c478bd9Sstevel@tonic-gate struct exportdata exi_export; 5237c478bd9Sstevel@tonic-gate fsid_t exi_fsid; 5247c478bd9Sstevel@tonic-gate struct fid exi_fid; 5250616fd7fSPavel Filipensky struct exp_hash fid_hash; 5260616fd7fSPavel Filipensky struct exp_hash path_hash; 527992d2facSpf struct treenode *exi_tree; 5287c478bd9Sstevel@tonic-gate fhandle_t exi_fh; 5297c478bd9Sstevel@tonic-gate krwlock_t exi_cache_lock; 5307c478bd9Sstevel@tonic-gate kmutex_t exi_lock; 5317c478bd9Sstevel@tonic-gate uint_t exi_count; 532*0dfe541eSEvan Layton zoneid_t exi_zoneid; 5337c478bd9Sstevel@tonic-gate vnode_t *exi_vp; 5347c478bd9Sstevel@tonic-gate vnode_t *exi_dvp; 53571da0c32SMarcel Telka avl_tree_t *exi_cache[AUTH_TABLESIZE]; 5367c478bd9Sstevel@tonic-gate struct log_buffer *exi_logbuffer; 5377c478bd9Sstevel@tonic-gate struct exp_visible *exi_visible; 538b89a8333Snatalie li - Sun Microsystems - Irvine United States struct charset_cache *exi_charset; 5397c478bd9Sstevel@tonic-gate unsigned exi_volatile_dev:1; 5402f172c55SRobert Thurlow unsigned exi_moved:1; 541*0dfe541eSEvan Layton int exi_id; 542*0dfe541eSEvan Layton avl_node_t exi_id_link; 543*0dfe541eSEvan Layton /* 544*0dfe541eSEvan Layton * Soft-reference/backpointer to zone's nfs_export_t. 545*0dfe541eSEvan Layton * This allows us access to the zone's rootvp (stored in 546*0dfe541eSEvan Layton * exi_ne->exi_root->exi_vp) even if the current thread isn't in 547*0dfe541eSEvan Layton * same-zone context. 548*0dfe541eSEvan Layton */ 549*0dfe541eSEvan Layton struct nfs_export *exi_ne; 5507c478bd9Sstevel@tonic-gate #ifdef VOLATILE_FH_TEST 5517c478bd9Sstevel@tonic-gate uint32_t exi_volatile_id; 5527c478bd9Sstevel@tonic-gate struct ex_vol_rename *exi_vol_rename; 5537c478bd9Sstevel@tonic-gate kmutex_t exi_vol_rename_lock; 554*0dfe541eSEvan Layton #endif /* VOLATILE_FH_TEST -- keep last! */ 5557c478bd9Sstevel@tonic-gate }; 5567c478bd9Sstevel@tonic-gate 557af9f9769Sjasmith typedef struct exportinfo exportinfo_t; 558af9f9769Sjasmith typedef struct exportdata exportdata_t; 559af9f9769Sjasmith typedef struct secinfo secinfo_t; 560af9f9769Sjasmith 5617c478bd9Sstevel@tonic-gate /* 5627c478bd9Sstevel@tonic-gate * exp_visible is a visible list per filesystem. It is for filesystems 5637c478bd9Sstevel@tonic-gate * that may need a limited view of its contents. A pseudo export and 5647c478bd9Sstevel@tonic-gate * a real export at the mount point (VROOT) which has a subtree shared 5657c478bd9Sstevel@tonic-gate * has a visible list. 5667c478bd9Sstevel@tonic-gate * 5674a695956SMarcel Telka * The exi_visible field is NULL for normal, non-pseudo filesystems 5687c478bd9Sstevel@tonic-gate * which do not have any subtree exported. If the field is non-null, 5697c478bd9Sstevel@tonic-gate * it points to a list of visible entries, identified by vis_fid and/or 5707c478bd9Sstevel@tonic-gate * vis_ino. The presence of a "visible" list means that if this export 5717c478bd9Sstevel@tonic-gate * can only have a limited view, it can only view the entries in the 5727c478bd9Sstevel@tonic-gate * exp_visible list. The directories in the fid list comprise paths that 5737c478bd9Sstevel@tonic-gate * lead to exported directories. 5747c478bd9Sstevel@tonic-gate * 5757c478bd9Sstevel@tonic-gate * The vis_count field records the number of paths in this filesystem 5767c478bd9Sstevel@tonic-gate * that use this directory. The vis_exported field is non-zero if the 5777c478bd9Sstevel@tonic-gate * entry is an exported directory (leaf node). 578c076b414SPavel Filipensky * 579c076b414SPavel Filipensky * exp_visible itself is not reference counted. Each exp_visible is 580c076b414SPavel Filipensky * referenced twice: 581c076b414SPavel Filipensky * 1) from treenode::tree_vis 582c076b414SPavel Filipensky * 2) linked from exportinfo::exi_visible 583c076b414SPavel Filipensky * The 'owner' of exp_visible is the exportinfo structure. exp_visible should 584c076b414SPavel Filipensky * be always freed only from exportinfo_t, never from treenode::tree_vis. 5857c478bd9Sstevel@tonic-gate */ 5867c478bd9Sstevel@tonic-gate 5877c478bd9Sstevel@tonic-gate struct exp_visible { 5887c478bd9Sstevel@tonic-gate vnode_t *vis_vp; 5897c478bd9Sstevel@tonic-gate fid_t vis_fid; 5907c478bd9Sstevel@tonic-gate u_longlong_t vis_ino; 5917c478bd9Sstevel@tonic-gate int vis_count; 5927c478bd9Sstevel@tonic-gate int vis_exported; 5937c478bd9Sstevel@tonic-gate struct exp_visible *vis_next; 594af9f9769Sjasmith struct secinfo *vis_secinfo; 595af9f9769Sjasmith int vis_seccnt; 5964a695956SMarcel Telka timespec_t vis_change; 5977c478bd9Sstevel@tonic-gate }; 598af9f9769Sjasmith typedef struct exp_visible exp_visible_t; 5997c478bd9Sstevel@tonic-gate 6007c478bd9Sstevel@tonic-gate #define PSEUDO(exi) ((exi)->exi_export.ex_flags & EX_PSEUDO) 6010616fd7fSPavel Filipensky #define EXP_LINKED(exi) ((exi)->fid_hash.bckt != NULL) 6027c478bd9Sstevel@tonic-gate 6037c478bd9Sstevel@tonic-gate #define EQFSID(fsidp1, fsidp2) \ 6047c478bd9Sstevel@tonic-gate (((fsidp1)->val[0] == (fsidp2)->val[0]) && \ 6057c478bd9Sstevel@tonic-gate ((fsidp1)->val[1] == (fsidp2)->val[1])) 6067c478bd9Sstevel@tonic-gate 6077c478bd9Sstevel@tonic-gate #define EQFID(fidp1, fidp2) \ 6087c478bd9Sstevel@tonic-gate ((fidp1)->fid_len == (fidp2)->fid_len && \ 6097c46fb7fSek bcmp((char *)(fidp1)->fid_data, (char *)(fidp2)->fid_data, \ 6107c478bd9Sstevel@tonic-gate (uint_t)(fidp1)->fid_len) == 0) 6117c478bd9Sstevel@tonic-gate 6127c478bd9Sstevel@tonic-gate #define exportmatch(exi, fsid, fid) \ 6137c478bd9Sstevel@tonic-gate (EQFSID(&(exi)->exi_fsid, (fsid)) && EQFID(&(exi)->exi_fid, (fid))) 6147c478bd9Sstevel@tonic-gate 6157c478bd9Sstevel@tonic-gate /* 6167c478bd9Sstevel@tonic-gate * Returns true iff exported filesystem is read-only to the given host. 6177c478bd9Sstevel@tonic-gate * 6187c478bd9Sstevel@tonic-gate * Note: this macro should be as fast as possible since it's called 6197c478bd9Sstevel@tonic-gate * on each NFS modification request. 6207c478bd9Sstevel@tonic-gate */ 6215cb0d679SMarcel Telka #define rdonly(ro, vp) ((ro) || vn_is_readonly(vp)) 6225cb0d679SMarcel Telka #define rdonly4(req, cs) \ 6235cb0d679SMarcel Telka (vn_is_readonly((cs)->vp) || \ 6245cb0d679SMarcel Telka (nfsauth4_access((cs)->exi, (cs)->vp, (req), (cs)->basecr, NULL, \ 62589621fe1SMarcel Telka NULL, NULL, NULL) & (NFSAUTH_RO | NFSAUTH_LIMITED))) 6267c478bd9Sstevel@tonic-gate 6277c478bd9Sstevel@tonic-gate extern int nfsauth4_access(struct exportinfo *, vnode_t *, 62889621fe1SMarcel Telka struct svc_req *, cred_t *, uid_t *, gid_t *, uint_t *, gid_t **); 6297c478bd9Sstevel@tonic-gate extern int nfsauth4_secinfo_access(struct exportinfo *, 63089621fe1SMarcel Telka struct svc_req *, int, int, cred_t *); 63171da0c32SMarcel Telka extern int nfsauth_cache_clnt_compar(const void *, const void *); 6327c478bd9Sstevel@tonic-gate extern int nfs_fhbcmp(char *, char *, int); 633*0dfe541eSEvan Layton extern void nfs_exportinit(void); 6347c478bd9Sstevel@tonic-gate extern void nfs_exportfini(void); 635*0dfe541eSEvan Layton extern void nfs_export_zone_init(nfs_globals_t *); 636*0dfe541eSEvan Layton extern void nfs_export_zone_fini(nfs_globals_t *); 637*0dfe541eSEvan Layton extern void nfs_export_zone_shutdown(nfs_globals_t *); 638*0dfe541eSEvan Layton extern int nfs_export_get_rootfh(nfs_globals_t *); 6395cb0d679SMarcel Telka extern int chk_clnt_sec(struct exportinfo *, struct svc_req *); 6407c478bd9Sstevel@tonic-gate extern int makefh(fhandle_t *, struct vnode *, struct exportinfo *); 6417c478bd9Sstevel@tonic-gate extern int makefh_ol(fhandle_t *, struct exportinfo *, uint_t); 6427c478bd9Sstevel@tonic-gate extern int makefh3(nfs_fh3 *, struct vnode *, struct exportinfo *); 6437c478bd9Sstevel@tonic-gate extern int makefh3_ol(nfs_fh3 *, struct exportinfo *, uint_t); 6447c478bd9Sstevel@tonic-gate extern vnode_t *nfs_fhtovp(fhandle_t *, struct exportinfo *); 6457c478bd9Sstevel@tonic-gate extern vnode_t *nfs3_fhtovp(nfs_fh3 *, struct exportinfo *); 6467c478bd9Sstevel@tonic-gate extern struct exportinfo *checkexport(fsid_t *, struct fid *); 6475cb0d679SMarcel Telka extern struct exportinfo *checkexport4(fsid_t *, struct fid *, vnode_t *); 6483ccecb66SThomas Haynes extern void exi_hold(struct exportinfo *); 6497c478bd9Sstevel@tonic-gate extern void exi_rele(struct exportinfo *); 6507c478bd9Sstevel@tonic-gate extern struct exportinfo *nfs_vptoexi(vnode_t *, vnode_t *, cred_t *, int *, 6517c478bd9Sstevel@tonic-gate int *, bool_t); 6527c478bd9Sstevel@tonic-gate extern int nfs_check_vpexi(vnode_t *, vnode_t *, cred_t *, 6537c478bd9Sstevel@tonic-gate struct exportinfo **); 654*0dfe541eSEvan Layton extern vnode_t *untraverse(vnode_t *, vnode_t *); 6552f172c55SRobert Thurlow extern int vn_is_nfs_reparse(vnode_t *, cred_t *); 6562f172c55SRobert Thurlow extern int client_is_downrev(struct svc_req *); 6572f172c55SRobert Thurlow extern char *build_symlink(vnode_t *, cred_t *, size_t *); 6587c478bd9Sstevel@tonic-gate 659*0dfe541eSEvan Layton extern fhandle_t nullfh2; /* for comparing V2 filehandles */ 660*0dfe541eSEvan Layton 661*0dfe541eSEvan Layton typedef struct nfs_export { 662*0dfe541eSEvan Layton /* Root of nfs pseudo namespace */ 663*0dfe541eSEvan Layton treenode_t *ns_root; 664*0dfe541eSEvan Layton 665*0dfe541eSEvan Layton nfs_globals_t *ne_globals; /* "up" pointer */ 666*0dfe541eSEvan Layton 667*0dfe541eSEvan Layton struct exportinfo *exptable_path_hash[PKP_HASH_SIZE]; 668*0dfe541eSEvan Layton struct exportinfo *exptable[EXPTABLESIZE]; 669*0dfe541eSEvan Layton 670*0dfe541eSEvan Layton /* 671*0dfe541eSEvan Layton * Read/Write lock that protects the exportinfo list. This lock 672*0dfe541eSEvan Layton * must be held when searching or modifiying the exportinfo list. 673*0dfe541eSEvan Layton */ 674*0dfe541eSEvan Layton krwlock_t exported_lock; 675*0dfe541eSEvan Layton 676*0dfe541eSEvan Layton /* "public" and default (root) location for public filehandle */ 677*0dfe541eSEvan Layton struct exportinfo *exi_public; 678*0dfe541eSEvan Layton struct exportinfo *exi_root; 679*0dfe541eSEvan Layton /* For checking default public file handle */ 680*0dfe541eSEvan Layton fid_t exi_rootfid; 681*0dfe541eSEvan Layton /* For comparing V2 filehandles */ 682*0dfe541eSEvan Layton fhandle_t nullfh2; 683*0dfe541eSEvan Layton 684*0dfe541eSEvan Layton /* The change attribute value of the root of nfs pseudo namespace */ 685*0dfe541eSEvan Layton timespec_t ns_root_change; 686*0dfe541eSEvan Layton } nfs_export_t; 687*0dfe541eSEvan Layton 6887c478bd9Sstevel@tonic-gate /* 6897c478bd9Sstevel@tonic-gate * Functions that handle the NFSv4 server namespace 6907c478bd9Sstevel@tonic-gate */ 6913f238301SPavel Filipensky extern exportinfo_t *vis2exi(treenode_t *); 6927c478bd9Sstevel@tonic-gate extern int treeclimb_export(struct exportinfo *); 693*0dfe541eSEvan Layton extern void treeclimb_unexport(nfs_export_t *, struct exportinfo *); 6947c478bd9Sstevel@tonic-gate extern int nfs_visible(struct exportinfo *, vnode_t *, int *); 6954a695956SMarcel Telka extern int nfs_visible_inode(struct exportinfo *, ino64_t, 696*0dfe541eSEvan Layton struct exp_visible **); 6977c478bd9Sstevel@tonic-gate extern int has_visible(struct exportinfo *, vnode_t *); 6987c478bd9Sstevel@tonic-gate extern void free_visible(struct exp_visible *); 6997c478bd9Sstevel@tonic-gate extern int nfs_exported(struct exportinfo *, vnode_t *); 700*0dfe541eSEvan Layton extern struct exportinfo *pseudo_exportfs(nfs_export_t *, vnode_t *, fid_t *, 701*0dfe541eSEvan Layton struct exp_visible *, struct exportdata *); 7025cb0d679SMarcel Telka extern int vop_fid_pseudo(vnode_t *, fid_t *); 7037c478bd9Sstevel@tonic-gate extern int nfs4_vget_pseudo(struct exportinfo *, vnode_t **, fid_t *); 7044a695956SMarcel Telka extern bool_t nfs_visible_change(struct exportinfo *, vnode_t *, 705*0dfe541eSEvan Layton timespec_t *); 706*0dfe541eSEvan Layton extern void tree_update_change(nfs_export_t *, treenode_t *, timespec_t *); 707*0dfe541eSEvan Layton extern void rfs4_clean_state_exi(nfs_export_t *, struct exportinfo *); 708*0dfe541eSEvan Layton 7097c478bd9Sstevel@tonic-gate /* 7107c478bd9Sstevel@tonic-gate * Functions that handle the NFSv4 server namespace security flavors 7117c478bd9Sstevel@tonic-gate * information. 7127c478bd9Sstevel@tonic-gate */ 7137c478bd9Sstevel@tonic-gate extern void srv_secinfo_exp2pseu(struct exportdata *, struct exportdata *); 714af9f9769Sjasmith extern void srv_secinfo_list_free(struct secinfo *, int); 7157c478bd9Sstevel@tonic-gate 716*0dfe541eSEvan Layton extern nfs_export_t *nfs_get_export(); 717*0dfe541eSEvan Layton extern void export_link(nfs_export_t *, struct exportinfo *); 718*0dfe541eSEvan Layton extern void export_unlink(nfs_export_t *, struct exportinfo *); 719*0dfe541eSEvan Layton 7207c478bd9Sstevel@tonic-gate /* 721*0dfe541eSEvan Layton * exi_id support 7227c478bd9Sstevel@tonic-gate */ 723*0dfe541eSEvan Layton extern kmutex_t nfs_exi_id_lock; 724*0dfe541eSEvan Layton extern avl_tree_t exi_id_tree; 725*0dfe541eSEvan Layton extern int exi_id_get_next(void); 7267c478bd9Sstevel@tonic-gate 7277c478bd9Sstevel@tonic-gate /* 7287c478bd9Sstevel@tonic-gate * Two macros for identifying public filehandles. 7297c478bd9Sstevel@tonic-gate * A v2 public filehandle is 32 zero bytes. 7307c478bd9Sstevel@tonic-gate * A v3 public filehandle is zero length. 7317c478bd9Sstevel@tonic-gate */ 7327c478bd9Sstevel@tonic-gate #define PUBLIC_FH2(fh) \ 7337c478bd9Sstevel@tonic-gate ((fh)->fh_fsid.val[1] == 0 && \ 7347c478bd9Sstevel@tonic-gate bcmp((fh), &nullfh2, sizeof (fhandle_t)) == 0) 7357c478bd9Sstevel@tonic-gate 7367c478bd9Sstevel@tonic-gate #define PUBLIC_FH3(fh) \ 7377c478bd9Sstevel@tonic-gate ((fh)->fh3_length == 0) 7387c478bd9Sstevel@tonic-gate 7397c478bd9Sstevel@tonic-gate extern int makefh4(nfs_fh4 *, struct vnode *, struct exportinfo *); 7407c478bd9Sstevel@tonic-gate extern vnode_t *nfs4_fhtovp(nfs_fh4 *, struct exportinfo *, nfsstat4 *); 7417c478bd9Sstevel@tonic-gate 7427c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 7437c478bd9Sstevel@tonic-gate 7447c478bd9Sstevel@tonic-gate #ifdef __cplusplus 7457c478bd9Sstevel@tonic-gate } 7467c478bd9Sstevel@tonic-gate #endif 7477c478bd9Sstevel@tonic-gate 7487c478bd9Sstevel@tonic-gate #endif /* _NFS_EXPORT_H */ 749