1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_FS_ZFS_ACL_H 28 #define _SYS_FS_ZFS_ACL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef _KERNEL 33 #include <sys/isa_defs.h> 34 #include <sys/types32.h> 35 #endif 36 #include <sys/acl.h> 37 #include <sys/dmu.h> 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 struct znode_phys; 44 45 #define ACCESS_UNDETERMINED -1 46 47 #define ACE_SLOT_CNT 6 48 49 typedef struct zfs_znode_acl { 50 uint64_t z_acl_extern_obj; /* ext acl pieces */ 51 uint32_t z_acl_count; /* Number of ACEs */ 52 uint16_t z_acl_version; /* acl version */ 53 uint16_t z_acl_state; /* goop */ 54 ace_t z_ace_data[ACE_SLOT_CNT]; /* 6 standard ACEs */ 55 } zfs_znode_acl_t; 56 57 #define ACL_DATA_ALLOCED 0x1 58 59 /* 60 * Max ACL size is prepended deny for all entries + the 61 * canonical six tacked on * the end. 62 */ 63 #define MAX_ACL_SIZE (MAX_ACL_ENTRIES * 2 + 6) 64 65 typedef struct zfs_acl { 66 int z_slots; /* number of allocated slots for ACEs */ 67 int z_acl_count; 68 uint_t z_state; 69 ace_t *z_acl; 70 } zfs_acl_t; 71 72 #define ZFS_ACL_SIZE(aclcnt) (sizeof (ace_t) * (aclcnt)) 73 74 /* 75 * Property values for acl_mode and acl_inherit. 76 * 77 * acl_mode can take discard, noallow, groupmask and passthrough. 78 * whereas acl_inherit has secure instead of groupmask. 79 */ 80 81 #define DISCARD 0 82 #define NOALLOW 1 83 #define GROUPMASK 2 84 #define PASSTHROUGH 3 85 #define SECURE 4 86 87 struct znode; 88 89 #ifdef _KERNEL 90 void zfs_perm_init(struct znode *, struct znode *, int, vattr_t *, 91 dmu_tx_t *, cred_t *); 92 int zfs_getacl(struct znode *, vsecattr_t *, cred_t *); 93 int zfs_mode_update(struct znode *, uint64_t, dmu_tx_t *); 94 int zfs_setacl(struct znode *, vsecattr_t *, cred_t *); 95 void zfs_acl_rele(void *); 96 void zfs_ace_byteswap(ace_t *, int); 97 extern int zfs_zaccess(struct znode *, int, cred_t *); 98 extern int zfs_zaccess_rwx(struct znode *, mode_t, cred_t *); 99 extern int zfs_acl_access(struct znode *, int, cred_t *); 100 int zfs_acl_chmod_setattr(struct znode *, uint64_t, dmu_tx_t *); 101 int zfs_zaccess_delete(struct znode *, struct znode *, cred_t *); 102 int zfs_zaccess_rename(struct znode *, struct znode *, 103 struct znode *, struct znode *, cred_t *cr); 104 int zfs_zaccess_v4_perm(struct znode *, int, cred_t *); 105 void zfs_acl_free(zfs_acl_t *); 106 zfs_acl_t *zfs_acl_node_read(struct znode *); 107 108 #endif 109 110 #ifdef __cplusplus 111 } 112 #endif 113 #endif /* _SYS_FS_ZFS_ACL_H */ 114