source3/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 3 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, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #ifndef __NFS4_ACLS_H__
  22 #define __NFS4_ACLS_H__
  23
  24 /*
  25  * Following union captures the identity as
  26  * used in the NFS4 ACL structures.
  27  */
  28 typedef union _SMB_NFS4_ACEWHOID_T {
  29         uid_t           uid;    /* User id */
  30         gid_t           gid;    /* Group id */
  31         uint32_t        special_id; /* Identifies special identities in NFS4 */
  32
  33 #define SMB_ACE4_WHO_OWNER         0x00000001 /*The owner of the file. */
  34 #define SMB_ACE4_WHO_GROUP         0x00000002 /*The group associated with the file. */
  35 #define SMB_ACE4_WHO_EVERYONE      0x00000003 /*The world. */
  36 #define SMB_ACE4_WHO_INTERACTIVE   0x00000004 /*Accessed from an interactive terminal. */
  37 #define SMB_ACE4_WHO_NETWORK       0x00000005 /*Accessed via the network. */
  38 #define SMB_ACE4_WHO_DIALUP        0x00000006 /*Accessed as a dialup user to the server. */
  39 #define SMB_ACE4_WHO_BATCH         0x00000007 /*Accessed from a batch job. */
  40 #define SMB_ACE4_WHO_ANONYMOUS     0x00000008 /*Accessed without any authentication. */
  41 #define SMB_ACE4_WHO_AUTHENTICATED 0x00000009 /*Any authenticated user (opposite of ANONYMOUS) */
  42 #define SMB_ACE4_WHO_SERVICE       0x0000000A /*Access from a system service. */
  43 #define SMB_ACE4_WHO_MAX                SMB_ACE4_WHO_SERVICE  /* largest valid ACE4_WHO */
  44         uint32_t id;
  45 } SMB_NFS4_ACEWHOID_T;
  46
  47 typedef struct _SMB_ACE4PROP_T {
  48         uint32_t flags;         /* Bit mask defining details of ACE */
  49 /*The following are constants for flags field */
  50 /* #define      SMB_ACE4_ID_NOT_VALID   0x00000001 - from aix/jfs2 */
  51 #define SMB_ACE4_ID_SPECIAL             0x00000002
  52
  53         SMB_NFS4_ACEWHOID_T     who;    /* Identifies to whom this ACE applies */
  54
  55         /* The following part of ACE has the same layout as NFSv4 wire format. */
  56
  57         uint32_t aceType;       /* Type of ACE PERMIT/ALLOW etc*/
  58 /*The constants used for the type field (acetype4) are as follows: */
  59 #define SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE        0x00000000
  60 #define SMB_ACE4_ACCESS_DENIED_ACE_TYPE 0x00000001
  61 #define SMB_ACE4_SYSTEM_AUDIT_ACE_TYPE  0x00000002
  62 #define SMB_ACE4_SYSTEM_ALARM_ACE_TYPE  0x00000003
  63 #define SMB_ACE4_MAX_TYPE       SMB_ACE4_SYSTEM_ALARM_ACE_TYPE  /* largest valid ACE4_TYPE */
  64
  65         uint32_t aceFlags;      /* Controls Inheritance and such */
  66 /*The bitmask constants used for the flag field are as follows: */
  67 #define SMB_ACE4_FILE_INHERIT_ACE             0x00000001
  68 #define SMB_ACE4_DIRECTORY_INHERIT_ACE        0x00000002
  69 #define SMB_ACE4_NO_PROPAGATE_INHERIT_ACE     0x00000004
  70 #define SMB_ACE4_INHERIT_ONLY_ACE             0x00000008
  71 #define SMB_ACE4_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
  72 #define SMB_ACE4_FAILED_ACCESS_ACE_FLAG       0x00000020
  73 #define SMB_ACE4_IDENTIFIER_GROUP             0x00000040
  74 #define SMB_ACE4_INHERITED_ACE                0x00000080
  75 #define SMB_ACE4_ALL_FLAGS      ( SMB_ACE4_FILE_INHERIT_ACE | SMB_ACE4_DIRECTORY_INHERIT_ACE \
  76 | SMB_ACE4_NO_PROPAGATE_INHERIT_ACE | SMB_ACE4_INHERIT_ONLY_ACE | SMB_ACE4_SUCCESSFUL_ACCESS_ACE_FLAG \
  77 | SMB_ACE4_FAILED_ACCESS_ACE_FLAG | SMB_ACE4_IDENTIFIER_GROUP | SMB_ACE4_INHERITED_ACE)
  78
  79         uint32_t aceMask;       /* Access rights */
  80 /*The bitmask constants used for the access mask field are as follows: */
  81 #define SMB_ACE4_READ_DATA            0x00000001
  82 #define SMB_ACE4_LIST_DIRECTORY       0x00000001
  83 #define SMB_ACE4_WRITE_DATA           0x00000002
  84 #define SMB_ACE4_ADD_FILE             0x00000002
  85 #define SMB_ACE4_APPEND_DATA          0x00000004
  86 #define SMB_ACE4_ADD_SUBDIRECTORY     0x00000004
  87 #define SMB_ACE4_READ_NAMED_ATTRS     0x00000008
  88 #define SMB_ACE4_WRITE_NAMED_ATTRS    0x00000010
  89 #define SMB_ACE4_EXECUTE              0x00000020
  90 #define SMB_ACE4_DELETE_CHILD         0x00000040
  91 #define SMB_ACE4_READ_ATTRIBUTES      0x00000080
  92 #define SMB_ACE4_WRITE_ATTRIBUTES     0x00000100
  93 #define SMB_ACE4_DELETE               0x00010000
  94 #define SMB_ACE4_READ_ACL             0x00020000
  95 #define SMB_ACE4_WRITE_ACL            0x00040000
  96 #define SMB_ACE4_WRITE_OWNER          0x00080000
  97 #define SMB_ACE4_SYNCHRONIZE          0x00100000
  98 #define SMB_ACE4_ALL_MASKS      ( SMB_ACE4_READ_DATA | SMB_ACE4_LIST_DIRECTORY \
  99 | SMB_ACE4_WRITE_DATA | SMB_ACE4_ADD_FILE | SMB_ACE4_APPEND_DATA | SMB_ACE4_ADD_SUBDIRECTORY \
 100 | SMB_ACE4_READ_NAMED_ATTRS | SMB_ACE4_WRITE_NAMED_ATTRS | SMB_ACE4_EXECUTE | SMB_ACE4_DELETE_CHILD \
 101 | SMB_ACE4_READ_ATTRIBUTES | SMB_ACE4_WRITE_ATTRIBUTES | SMB_ACE4_DELETE | SMB_ACE4_READ_ACL \
 102 | SMB_ACE4_WRITE_ACL | SMB_ACE4_WRITE_OWNER | SMB_ACE4_SYNCHRONIZE )
 103 } SMB_ACE4PROP_T;
 104
 105 struct SMB4ACL_T;
 106 struct SMB4ACE_T;
 107
 108 enum smbacl4_mode_enum {e_simple=0, e_special=1};
 109 enum smbacl4_acedup_enum {e_dontcare=0, e_reject=1, e_ignore=2, e_merge=3};
 110
 111 struct smbacl4_vfs_params {
 112         enum smbacl4_mode_enum mode;
 113         bool do_chown;
 114         enum smbacl4_acedup_enum acedup;
 115         bool map_full_control;
 116 };
 117
 118 int smbacl4_get_vfs_params(struct connection_struct *conn,
 119                            struct smbacl4_vfs_params *params);
 120
 121 int nfs4_acl_stat(struct vfs_handle_struct *handle,
 122                   struct smb_filename *smb_fname);
 123
 124 int nfs4_acl_fstat(struct vfs_handle_struct *handle,
 125                    struct files_struct *fsp,
 126                    SMB_STRUCT_STAT *sbuf);
 127
 128 int nfs4_acl_lstat(struct vfs_handle_struct *handle,
 129                    struct smb_filename *smb_fname);
 130
 131 int nfs4_acl_fstatat(struct vfs_handle_struct *handle,
 132                      const struct files_struct *dirfsp,
 133                      const struct smb_filename *smb_fname,
 134                      SMB_STRUCT_STAT *sbuf,
 135                      int flags);
 136
 137 struct SMB4ACL_T *smb_create_smb4acl(TALLOC_CTX *mem_ctx);
 138
 139 /* prop's contents are copied */
 140 /* it doesn't change the order, appends */
 141 struct SMB4ACE_T *smb_add_ace4(struct SMB4ACL_T *theacl, SMB_ACE4PROP_T *prop);
 142
 143 SMB_ACE4PROP_T *smb_get_ace4(struct SMB4ACE_T *ace);
 144
 145 /* Returns NULL if none - or error */
 146 struct SMB4ACE_T *smb_first_ace4(struct SMB4ACL_T *theacl);
 147
 148 /* Returns NULL in the end - or error */
 149 struct SMB4ACE_T *smb_next_ace4(struct SMB4ACE_T *ace);
 150
 151 uint32_t smb_get_naces(struct SMB4ACL_T *theacl);
 152
 153 uint16_t smbacl4_get_controlflags(struct SMB4ACL_T *theacl);
 154
 155 bool smbacl4_set_controlflags(struct SMB4ACL_T *theacl, uint16_t controlflags);
 156
 157 bool nfs_ace_is_inherit(SMB_ACE4PROP_T *ace);
 158
 159 NTSTATUS smb_fget_nt_acl_nfs4(files_struct *fsp,
 160         const struct smbacl4_vfs_params *pparams,
 161         uint32_t security_info,
 162         TALLOC_CTX *mem_ctx,
 163         struct security_descriptor **ppdesc, struct SMB4ACL_T *theacl);
 164
 165 NTSTATUS smb_get_nt_acl_nfs4(connection_struct *conn,
 166         const struct smb_filename *smb_fname,
 167         const struct smbacl4_vfs_params *pparams,
 168         uint32_t security_info,
 169         TALLOC_CTX *mem_ctx,
 170         struct security_descriptor **ppdesc, struct SMB4ACL_T *theacl);
 171
 172 /* Callback function needed to set the native acl
 173  * when applicable */
 174 typedef bool (*set_nfs4acl_native_fn_t)(vfs_handle_struct *handle,
 175                                         files_struct *,
 176                                         struct SMB4ACL_T *);
 177
 178 NTSTATUS smb_set_nt_acl_nfs4(vfs_handle_struct *handle, files_struct *fsp,
 179         const struct smbacl4_vfs_params *pparams,
 180         uint32_t security_info_sent,
 181         const struct security_descriptor *psd,
 182         set_nfs4acl_native_fn_t set_nfs4_native);
 183
 184 #endif /* __NFS4_ACLS_H__ */