source/modules/nfs4_acls.h

   1 /*
   2  * NFS4 ACL handling
   3  *
   4  * Copyright (C) Jim McDonough, 2006
   5  * Reused & renamed some parts of AIX 5.3 sys/acl.h structures
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #ifndef __NFS4_ACLS_H__
  23 #define __NFS4_ACLS_H__
  24
  25 #define SMB_ACLTYPE_NONE 0
  26 #define SMB_ACLTYPE_UNKNOWN 1
  27 #define SMB_ACLTYPE_POSIX 2
  28 #define SMB_ACLTYPE_NFS4 4
  29
  30 /*
  31  * Following union captures the identity as
  32  * used in the NFS4 ACL structures.
  33  */
  34 typedef union _SMB_NFS4_ACEWHOID_T {
  35         uid_t   uid;    /* User id */
  36         gid_t   gid;    /* Group id */
  37         uint32  special_id;     /* Identifies special identities in NFS4 */
  38
  39 #define SMB_ACE4_WHO_OWNER         0x00000001 /*The owner of the file. */
  40 #define SMB_ACE4_WHO_GROUP         0x00000002 /*The group associated with the file. */
  41 #define SMB_ACE4_WHO_EVERYONE      0x00000003 /*The world. */
  42 #define SMB_ACE4_WHO_INTERACTIVE   0x00000004 /*Accessed from an interactive terminal. */
  43 #define SMB_ACE4_WHO_NETWORK       0x00000005 /*Accessed via the network. */
  44 #define SMB_ACE4_WHO_DIALUP        0x00000006 /*Accessed as a dialup user to the server. */
  45 #define SMB_ACE4_WHO_BATCH         0x00000007 /*Accessed from a batch job. */
  46 #define SMB_ACE4_WHO_ANONYMOUS     0x00000008 /*Accessed without any authentication. */
  47 #define SMB_ACE4_WHO_AUTHENTICATED 0x00000009 /*Any authenticated user (opposite of ANONYMOUS) */
  48 #define SMB_ACE4_WHO_SERVICE       0x0000000A /*Access from a system service. */
  49 #define SMB_ACE4_WHO_MAX                SMB_ACE4_WHO_SERVICE  /* largest valid ACE4_WHO */
  50         uint32 id;
  51 } SMB_NFS4_ACEWHOID_T;
  52
  53 typedef struct _SMB_ACE4PROP_T {
  54         uint32  flags;  /* Bit mask defining details of ACE */
  55 /*The following are constants for flags field */
  56 /* #define      SMB_ACE4_ID_NOT_VALID   0x00000001 - from aix/jfs2 */
  57 #define SMB_ACE4_ID_SPECIAL             0x00000002
  58
  59         SMB_NFS4_ACEWHOID_T     who;    /* Identifies to whom this ACE applies */
  60
  61         /* The following part of ACE has the same layout as NFSv4 wire format. */
  62
  63         uint32  aceType;        /* Type of ACE PERMIT/ALLOW etc*/
  64 /*The constants used for the type field (acetype4) are as follows: */
  65 #define SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE        0x00000000
  66 #define SMB_ACE4_ACCESS_DENIED_ACE_TYPE 0x00000001
  67 #define SMB_ACE4_SYSTEM_AUDIT_ACE_TYPE  0x00000002
  68 #define SMB_ACE4_SYSTEM_ALARM_ACE_TYPE  0x00000003
  69 #define SMB_ACE4_MAX_TYPE       ACE4_SYSTEM_ALARM_ACE_TYPE  /* largest valid ACE4_TYPE */
  70
  71         uint32  aceFlags;       /* Controls Inheritance and such */
  72 /*The bitmask constants used for the flag field are as follows: */
  73 #define SMB_ACE4_FILE_INHERIT_ACE             0x00000001
  74 #define SMB_ACE4_DIRECTORY_INHERIT_ACE        0x00000002
  75 #define SMB_ACE4_NO_PROPAGATE_INHERIT_ACE     0x00000004
  76 #define SMB_ACE4_INHERIT_ONLY_ACE             0x00000008
  77 #define SMB_ACE4_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
  78 #define SMB_ACE4_FAILED_ACCESS_ACE_FLAG       0x00000020
  79 #define SMB_ACE4_IDENTIFIER_GROUP             0x00000040
  80 #define SMB_ACE4_ALL_FLAGS      ( SMB_ACE4_FILE_INHERIT_ACE | SMB_ACE4_DIRECTORY_INHERIT_ACE \
  81 | SMB_ACE4_NO_PROPAGATE_INHERIT_ACE | SMB_ACE4_INHERIT_ONLY_ACE | SMB_ACE4_SUCCESSFUL_ACCESS_ACE_FLAG \
  82 | SMB_ACE4_FAILED_ACCESS_ACE_FLAG | SMB_ACE4_IDENTIFIER_GROUP )
  83
  84         uint32  aceMask;        /* Access rights */
  85 /*The bitmask constants used for the access mask field are as follows: */
  86 #define SMB_ACE4_READ_DATA            0x00000001
  87 #define SMB_ACE4_LIST_DIRECTORY       0x00000001
  88 #define SMB_ACE4_WRITE_DATA           0x00000002
  89 #define SMB_ACE4_ADD_FILE             0x00000002
  90 #define SMB_ACE4_APPEND_DATA          0x00000004
  91 #define SMB_ACE4_ADD_SUBDIRECTORY     0x00000004
  92 #define SMB_ACE4_READ_NAMED_ATTRS     0x00000008
  93 #define SMB_ACE4_WRITE_NAMED_ATTRS    0x00000010
  94 #define SMB_ACE4_EXECUTE              0x00000020
  95 #define SMB_ACE4_DELETE_CHILD         0x00000040
  96 #define SMB_ACE4_READ_ATTRIBUTES      0x00000080
  97 #define SMB_ACE4_WRITE_ATTRIBUTES     0x00000100
  98 #define SMB_ACE4_DELETE               0x00010000
  99 #define SMB_ACE4_READ_ACL             0x00020000
 100 #define SMB_ACE4_WRITE_ACL            0x00040000
 101 #define SMB_ACE4_WRITE_OWNER          0x00080000
 102 #define SMB_ACE4_SYNCHRONIZE          0x00100000
 103 #define SMB_ACE4_ALL_MASKS      ( SMB_ACE4_READ_DATA | SMB_ACE4_LIST_DIRECTORY \
 104 | SMB_ACE4_WRITE_DATA | SMB_ACE4_ADD_FILE | SMB_ACE4_APPEND_DATA | SMB_ACE4_ADD_SUBDIRECTORY \
 105 | SMB_ACE4_READ_NAMED_ATTRS | SMB_ACE4_WRITE_NAMED_ATTRS | SMB_ACE4_EXECUTE | SMB_ACE4_DELETE_CHILD \
 106 | SMB_ACE4_READ_ATTRIBUTES | SMB_ACE4_WRITE_ATTRIBUTES | SMB_ACE4_DELETE | SMB_ACE4_READ_ACL \
 107 | SMB_ACE4_WRITE_ACL | SMB_ACE4_WRITE_OWNER | SMB_ACE4_SYNCHRONIZE )
 108 } SMB_ACE4PROP_T;
 109
 110 /*
 111  * Never allocate these structures on your own
 112  * use create_smb4acl instead
 113  */
 114 typedef struct _SMB4ACL_T {char dontuse;} SMB4ACL_T;
 115 typedef struct _SMB4ACE_T {char dontuse;} SMB4ACE_T;
 116
 117 SMB4ACL_T *smb_create_smb4acl(void);
 118
 119 /* prop's contents are copied */
 120 /* it doesn't change the order, appends */
 121 SMB4ACE_T *smb_add_ace4(SMB4ACL_T *acl, SMB_ACE4PROP_T *prop);
 122
 123 SMB_ACE4PROP_T *smb_get_ace4(SMB4ACE_T *ace);
 124
 125 /* Returns NULL if none - or error */
 126 SMB4ACE_T *smb_first_ace4(SMB4ACL_T *acl);
 127
 128 /* Returns NULL in the end - or error */
 129 SMB4ACE_T *smb_next_ace4(SMB4ACE_T *ace);
 130
 131 uint32 smb_get_naces(SMB4ACL_T *acl);
 132
 133 size_t smb_get_nt_acl_nfs4(files_struct *fsp,
 134         uint32 security_info,
 135         SEC_DESC **ppdesc, SMB4ACL_T *acl);
 136
 137 /* Callback function needed to set the native acl
 138  * when applicable */
 139 typedef BOOL (*set_nfs4acl_native_fn_t)(files_struct *, SMB4ACL_T *);
 140
 141 BOOL smb_set_nt_acl_nfs4(files_struct *fsp,
 142         uint32 security_info_sent,
 143         SEC_DESC *psd,
 144         set_nfs4acl_native_fn_t set_nfs4_native);
 145
 146 #endif /* __NFS4_ACLS_H__ */