119370Spst/* 298948Sobrien * CDDL HEADER START 3130809Smarcel * 419370Spst * The contents of this file are subject to the terms of the 519370Spst * Common Development and Distribution License (the "License"). 698948Sobrien * You may not use this file except in compliance with the License. 719370Spst * 898948Sobrien * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 998948Sobrien * or http://www.opensolaris.org/os/licensing. 1098948Sobrien * See the License for the specific language governing permissions 1198948Sobrien * and limitations under the License. 1219370Spst * 1398948Sobrien * When distributing Covered Code, include this CDDL HEADER in each 1498948Sobrien * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1598948Sobrien * If applicable, add the following below this CDDL HEADER, with the 1698948Sobrien * fields enclosed by brackets "[]" replaced with your own identifying 1719370Spst * information: Portions Copyright [yyyy] [name of copyright owner] 1898948Sobrien * 1998948Sobrien * CDDL HEADER END 2098948Sobrien */ 2198948Sobrien/* 2219370Spst * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 2319370Spst * Use is subject to license terms. 2419370Spst */ 2519370Spst 2619370Spst#ifndef _SYS_FS_ZFS_FUID_H 2719370Spst#define _SYS_FS_ZFS_FUID_H 2819370Spst 2919370Spst#include <sys/types.h> 3019370Spst#ifdef _KERNEL 3119370Spst#include <sys/kidmap.h> 3219370Spst#include <sys/dmu.h> 3319370Spst#include <sys/zfs_vfsops.h> 3419370Spst#endif 3519370Spst#include <sys/avl.h> 3619370Spst#include <sys/list.h> 3719370Spst 3819370Spst#ifdef __cplusplus 3919370Spstextern "C" { 4019370Spst#endif 4119370Spst 4219370Spsttypedef enum { 4319370Spst ZFS_OWNER, 4419370Spst ZFS_GROUP, 45130809Smarcel ZFS_ACE_USER, 4619370Spst ZFS_ACE_GROUP 4719370Spst} zfs_fuid_type_t; 4819370Spst 4919370Spst/* 5019370Spst * Estimate space needed for one more fuid table entry. 5198948Sobrien * for now assume its current size + 1K 5219370Spst */ 5319370Spst#define FUID_SIZE_ESTIMATE(z) ((z)->z_fuid_size + (SPA_MINBLOCKSIZE << 1)) 5419370Spst 5519370Spst#define FUID_INDEX(x) ((x) >> 32) 5619370Spst#define FUID_RID(x) ((x) & 0xffffffff) 5798948Sobrien#define FUID_ENCODE(idx, rid) (((uint64_t)(idx) << 32) | (rid)) 5819370Spst/* 5998948Sobrien * FUIDs cause problems for the intent log 60130809Smarcel * we need to replay the creation of the FUID, 6119370Spst * but we can't count on the idmapper to be around 6219370Spst * and during replay the FUID index may be different than 6319370Spst * before. Also, if an ACL has 100 ACEs and 12 different 6498948Sobrien * domains we don't want to log 100 domain strings, but rather 6519370Spst * just the unique 12. 6619370Spst */ 6719370Spst 6819370Spst/* 6998948Sobrien * The FUIDs in the log will index into 7098948Sobrien * domain string table and the bottom half will be the rid. 7198948Sobrien * Used for mapping ephemeral uid/gid during ACL setting to FUIDs 7298948Sobrien */ 7319370Spsttypedef struct zfs_fuid { 7498948Sobrien list_node_t z_next; 7519370Spst uint64_t z_id; /* uid/gid being converted to fuid */ 7698948Sobrien uint64_t z_domidx; /* index in AVL domain table */ 7798948Sobrien uint64_t z_logfuid; /* index for domain in log */ 7898948Sobrien} zfs_fuid_t; 7998948Sobrien 8098948Sobrien/* list of unique domains */ 8119370Spsttypedef struct zfs_fuid_domain { 8298948Sobrien list_node_t z_next; 8319370Spst uint64_t z_domidx; /* AVL tree idx */ 8498948Sobrien const char *z_domain; /* domain string */ 8519370Spst} zfs_fuid_domain_t; 8698948Sobrien 8719370Spst/* 8898948Sobrien * FUID information necessary for logging create, setattr, and setacl. 8998948Sobrien */ 9019370Spsttypedef struct zfs_fuid_info { 9198948Sobrien list_t z_fuids; 9298948Sobrien list_t z_domains; 9398948Sobrien uint64_t z_fuid_owner; 9498948Sobrien uint64_t z_fuid_group; 9519370Spst char **z_domain_table; /* Used during replay */ 9619370Spst uint32_t z_fuid_cnt; /* How many fuids in z_fuids */ 9719370Spst uint32_t z_domain_cnt; /* How many domains */ 9819370Spst size_t z_domain_str_sz; /* len of domain strings z_domain list */ 9919370Spst} zfs_fuid_info_t; 10019370Spst 10119370Spst#ifdef _KERNEL 10219370Spststruct znode; 10398948Sobrienextern uid_t zfs_fuid_map_id(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t); 10419370Spstextern void zfs_fuid_node_add(zfs_fuid_info_t **, const char *, uint32_t, 10519370Spst uint64_t, uint64_t, zfs_fuid_type_t); 10619370Spstextern void zfs_fuid_destroy(zfsvfs_t *); 10719370Spstextern uint64_t zfs_fuid_create_cred(zfsvfs_t *, zfs_fuid_type_t, 10819370Spst cred_t *, zfs_fuid_info_t **); 10919370Spstextern uint64_t zfs_fuid_create(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t, 11019370Spst zfs_fuid_info_t **); 11119370Spstextern void zfs_fuid_map_ids(struct znode *zp, cred_t *cr, 11219370Spst uid_t *uid, uid_t *gid); 11319370Spstextern zfs_fuid_info_t *zfs_fuid_info_alloc(void); 11419370Spstextern void zfs_fuid_info_free(zfs_fuid_info_t *); 11519370Spstextern boolean_t zfs_groupmember(zfsvfs_t *, uint64_t, cred_t *); 11619370Spstvoid zfs_fuid_sync(zfsvfs_t *, dmu_tx_t *); 11719370Spstextern int zfs_fuid_find_by_domain(zfsvfs_t *, const char *domain, 11819370Spst char **retdomain, boolean_t addok); 11946283Sdfrextern const char *zfs_fuid_find_by_idx(zfsvfs_t *zfsvfs, uint32_t idx); 12046283Sdfrextern void zfs_fuid_txhold(zfsvfs_t *zfsvfs, dmu_tx_t *tx); 12119370Spst#endif 12219370Spst 12346283Sdfrchar *zfs_fuid_idx_domain(avl_tree_t *, uint32_t); 12446283Sdfrvoid zfs_fuid_avl_tree_create(avl_tree_t *, avl_tree_t *); 12519370Spstuint64_t zfs_fuid_table_load(objset_t *, uint64_t, avl_tree_t *, avl_tree_t *); 12619370Spstvoid zfs_fuid_table_destroy(avl_tree_t *, avl_tree_t *); 12719370Spst 12846283Sdfr#ifdef __cplusplus 12946283Sdfr} 13046283Sdfr#endif 13146283Sdfr 13246283Sdfr#endif /* _SYS_FS_ZFS_FUID_H */ 13319370Spst