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samba-mirror/source3/modules
Jeremy Allison 6af05f10c1 Fix bug #7812 - vfs_acl_xattr/vfs_acl_tdb: ACL inheritance cannot be disabled
We were losing the incoming security descriptor revision number and
most importantly the "type" field as sent by the client. Ensure we
correctly store these in the xattr object.

Jeremy.

Autobuild-User: Jeremy Allison <jra@samba.org>
Autobuild-Date: Wed Nov 24 00:18:57 CET 2010 on sn-devel-104
2010-11-24 00:18:57 +01:00
..
charset_macosxfs.c
CP437.c
CP850.c
developer.c
getdate.c
getdate.h
getdate.y
gpfs.c s3: FILE_WRITE_DATA & friends have gone from includes.h 2010-10-28 13:37:06 +00:00
nfs4_acls.c s3: fix the build of idmap_adex, idmap_tdb2, idmap_hash and several vfs modules. 2010-10-18 14:39:39 +00:00
nfs4_acls.h s3-secdesc: remove "typedef struct security_descriptor SEC_DESC". 2010-05-18 12:30:12 +02:00
onefs_acl.c s3-security: use shared SECINFO_DACL define. 2010-06-03 11:00:12 +02:00
onefs_cbrl.c s3: Explicitly pass sconn to process_blocking_lock_queue 2010-06-12 15:42:56 +02:00
onefs_config.c s3 onefs: Fix reading over the end of the array, because the incorrect array was being read. 2009-06-15 14:11:39 -07:00
onefs_config.h
onefs_dir.c s3 onefs: update the onefs module to be compliant with stat_ex 2009-05-28 15:13:53 -07:00
onefs_notify.c s3 onefs: update the onefs module to be compliant with stat_ex 2009-05-28 15:13:53 -07:00
onefs_open.c s3-smbd: Migrated to new spoolss functions for printing. 2010-07-27 10:27:13 -04:00
onefs_shadow_copy.c
onefs_shadow_copy.h
onefs_streams.c s3: Add more helpful debugging to some of the streams code 2009-09-24 10:59:33 -07:00
onefs_system.c s3: Add more helpful debugging to some of the streams code 2009-09-24 10:59:33 -07:00
onefs.h s3-secdesc: remove "typedef struct security_descriptor SEC_DESC". 2010-05-18 12:30:12 +02:00
perfcount_onefs.c s3: Remove smbd_server_fd() 2010-08-29 21:55:25 +02:00
perfcount_test.c Fix bad use when freeing linked list. Todd Stecher (Original author) please check ! 2010-02-10 16:23:33 -08:00
README-gpfs-acl.txt
README.nfs4acls.txt
vfs_acl_common.c Fix bug #7812 - vfs_acl_xattr/vfs_acl_tdb: ACL inheritance cannot be disabled 2010-11-24 00:18:57 +01:00
vfs_acl_tdb.c Ensure we have correct parameters to use Windows ACL modules. 2010-10-16 03:36:04 +00:00
vfs_acl_xattr.c Ensure we have correct parameters to use Windows ACL modules. 2010-10-16 03:36:04 +00:00
vfs_afsacl.c s3-util_sid: use shared dom_sid_compare_auth and dom_sid_equal_X functions. 2010-09-20 14:04:37 -07:00
vfs_aio_fork.c s3: Remove smbd_server_conn from files_forall 2010-09-28 07:36:16 +02:00
vfs_aixacl2.c s3-secdesc: remove "typedef struct security_descriptor SEC_DESC". 2010-05-18 12:30:12 +02:00
vfs_aixacl_util.c Fix some warnings in the AIX ACL code. 2009-08-12 10:58:00 -07:00
vfs_aixacl.c Make the smbd VFS typesafe 2009-07-24 11:42:05 -04:00
vfs_audit.c Restructure the connect function code to always call 2009-11-30 15:53:04 -08:00
vfs_cacheprime.c Restructure the connect function code to always call 2009-11-30 15:53:04 -08:00
vfs_cap.c Move the uglyness of #ifdef REALPATH_TAKES_NULL into the vfs_default 2010-11-20 02:15:50 +01:00
vfs_catia.c Move the uglyness of #ifdef REALPATH_TAKES_NULL into the vfs_default 2010-11-20 02:15:50 +01:00
vfs_commit.c vfs_commit: print warning when no fsync support is there 2010-01-06 18:28:16 +01:00
vfs_crossrename.c s3: add vfs_crossrename 2010-03-08 17:17:58 +01:00
vfs_default_quota.c Make the smbd VFS typesafe 2009-07-24 11:42:05 -04:00
vfs_default.c Move the uglyness of #ifdef REALPATH_TAKES_NULL into the vfs_default 2010-11-20 02:15:50 +01:00
vfs_dirsort.c Check all SMB_MALLOC returns correctly. Found by Andreas Moroder <andreas.moroder@gmx.net>. 2010-09-10 11:56:26 -07:00
vfs_expand_msdfs.c s3: Remove smbd_server_fd from expand_msdfs_target 2010-08-26 22:35:52 +02:00
vfs_extd_audit.c Restructure the connect function code to always call 2009-11-30 15:53:04 -08:00
vfs_fake_perms.c Make the smbd VFS typesafe 2009-07-24 11:42:05 -04:00
vfs_fileid.c Restructure the connect function code to always call 2009-11-30 15:53:04 -08:00
vfs_full_audit.c Move the uglyness of #ifdef REALPATH_TAKES_NULL into the vfs_default 2010-11-20 02:15:50 +01:00
vfs_gpfs.c s3: Make gpfs winattrs work again 2010-10-27 15:31:59 +00:00
vfs_gpfs.h s3:gpfs: Add support for the gpfs_ftruncate call 2010-10-13 13:34:25 +00:00
vfs_hpuxacl.c s3: Lift smbd_server_conn from file_find_fd 2010-09-28 07:36:18 +02:00
vfs_hpuxacl.h s3: Attempt to fix hpuxacl module 2009-07-29 10:12:23 -07:00
vfs_irixacl.c Make the smbd VFS typesafe 2009-07-24 11:42:05 -04:00
vfs_irixacl.h
vfs_linux_xfs_sgid.c s3: Add vfs_linux_xfs_sgid 2010-06-02 12:30:51 +02:00
vfs_netatalk.c vfs_netatalk: Segfault if hide files or veto files has no ".AppleDouble" 2010-03-10 16:11:26 -08:00
vfs_notify_fam.c s3-build: fix the build of vfs_notify_fam. 2010-05-06 10:28:31 +02:00
vfs_onefs_shadow_copy.c Move the uglyness of #ifdef REALPATH_TAKES_NULL into the vfs_default 2010-11-20 02:15:50 +01:00
vfs_onefs.c Restructure the connect function code to always call 2009-11-30 15:53:04 -08:00
vfs_posixacl.c Make the smbd VFS typesafe 2009-07-24 11:42:05 -04:00
vfs_posixacl.h
vfs_prealloc.c Restructure the connect function code to always call 2009-11-30 15:53:04 -08:00
vfs_preopen.c Revert "s3: Make the implicit reference to Protocol in is_in_path() explicit" 2009-11-23 16:35:00 +01:00
vfs_readahead.c Restructure the connect function code to always call 2009-11-30 15:53:04 -08:00
vfs_readonly.c Remove the bool admin_user from conn struct. We no longer look at this to make access decisions. 2010-03-15 15:39:41 -07:00
vfs_recycle.c s3-netlogon: remove global include of netlogon.h. 2010-08-06 15:46:16 +02:00
vfs_scannedonly.c switch from mtime to ctime which is more reliable if files can be accessed outside samba as well 2010-11-20 03:07:03 +01:00
vfs_shadow_copy2.c Move the uglyness of #ifdef REALPATH_TAKES_NULL into the vfs_default 2010-11-20 02:15:50 +01:00
vfs_shadow_copy.c Make the smbd VFS typesafe 2009-07-24 11:42:05 -04:00
vfs_smb_traffic_analyzer.c libcli/security Provide a common, top level libcli/security/security.h 2010-10-12 05:54:10 +00:00
vfs_smb_traffic_analyzer.h s3: vfs_smb_traffic_analyzer.c: add VFS functions for file open and close 2010-03-16 09:52:10 -04:00
vfs_solarisacl.c Cleanup patch after "new VFS" 2009-07-25 13:12:08 -04:00
vfs_solarisacl.h
vfs_streams_depot.c s3: Do not talloc in readdir 2009-11-18 23:16:13 +01:00
vfs_streams_xattr.c s3: fix calculation of st_blocks in streams_xattr 2010-06-09 15:27:38 +02:00
vfs_syncops.c s3:vfs:syncops add option to disable module per share 2010-10-13 12:53:16 +00:00
vfs_time_audit.c Move the uglyness of #ifdef REALPATH_TAKES_NULL into the vfs_default 2010-11-20 02:15:50 +01:00
vfs_tru64acl.c Make the smbd VFS typesafe 2009-07-24 11:42:05 -04:00
vfs_tru64acl.h
vfs_tsmsm.c s3/vfs_tsmsm: remove unneeded cast to off_t 2010-11-18 14:47:59 +00:00
vfs_xattr_tdb.c Fix bug 7781 - Samba transforms ShareName to lowercase (sharename) when adding new share via MMC 2010-11-10 01:14:17 +00:00
vfs_zfsacl.c s3-secdesc: remove "typedef struct security_descriptor SEC_DESC". 2010-05-18 12:30:12 +02:00
weird.c
wscript_build s3-waf: add vfs_time_audit to the build. 2010-10-28 15:14:27 +00:00

Configuring NFS4 ACLs in Samba3
===============================
Created: Peter Somogyi, 2006-JUN-06
Last modified: Peter Somogyi, 2006-JUL-20
Revision no.: 4 
-------------------------------


Parameters in smb.conf:
=======================

Each parameter must have a prefix "nfs4:".
Each one affects the behaviour only when _setting_ an acl on a file/dir:

mode = [simple|special]
- simple: don't use OWNER@ and GROUP@ special IDs in ACEs. - default
- special: use OWNER@ and GROUP@ special IDs in ACEs instead of simple user&group ids.
Note: EVERYONE@ is always processed (if found such an ACE).
Note2: special mode will have side effect when _only_ chown is performed. Later this may be worked out.

Use "simple" mode when the share is used mainly by windows users and unix side is not significant. You will loose unix bits in this case.
It's strongly advised setting "store dos attributes = yes" in smb.conf.

chown = [true|false]
- true => enable changing owner and group - default.
- false => disable support for changing owner or group

acedup = [dontcare|reject|ignore|merge]
- dontcare: copy ACEs as they come, don't care with "duplicate" records. Default.
- reject: stop operation, exit acl setter operation with an error
- ignore: don't include the second matching ACE
- merge: OR 2 ace.flag fields and 2 ace.mask fields of the 2 duplicate ACEs into 1 ACE

Two ACEs are considered here "duplicate" when their type and id fields are matching.

Example:

[smbtest]
path = /tests/psomogyi/smbtest
writable = yes
vfs objects = aixacl2
nfs4: mode = special
nfs4: chown = yes
nfs4: acedup = merge

Configuring AIX ACL support
==============================

Binaries: (default install path is [samba]/lib/vfs/)
- aixacl.so: provides AIXC ACL support only, can be compiled and works on all AIX platforms
- aixacl2.so: provides AIXC and JFS2-NFS4 ACL support, can be compiled and works only under AIX 5.3 and newer.
NFS4 acl currently has support only under JFS2 (ext. attr. format must be set to v2).
aixacl2.so always detects support for NFS4 acls and redirects to POSIX ACL handling automatically when NFS4 is not supported for a path.

Adding "vfs objects = aixacl2" to a share should be done only in case when NFS4 is really supported by the filesystem.
(Otherwise you may get performance loss.)

For configuration see also the example above.

General notes
=============

NFS4 handling logic is separated from AIX/jfs2 ACL parsing.

Samba and its VFS modules dosn't reorder ACEs. Windows clients do that (and the smbcacl tool). MSDN also says deny ACEs must come first.
NFS4 ACL's validity is checked by the system API, not by Samba.
NFS4 ACL rights are enforced by the OS or filesystem, not by Samba.

The flag INHERITED_ACE is never set (not required, as doesn't do WinNT/98/me, only since Win2k).
Win2k GUI behaves strangely when detecting inheritance (sometimes it doesn't detect, 
but after adding an ace it shows that - it's some GUI error).

Unknown (unmappable) SIDs are not accepted.

TODOs
=====
- Creator Owner & Group SID handling (same way as posix)
- the 4 generic rights bits support (GENERIC_RIGHT_READ_ACCESS, WRITE, EXEC, ALL)
- chown & no ACL, but we have ONWER@ and GROUP@
- DIALUP, ANONYMOUS, ... builtin SIDs
- audit & alarm support - in theory it's forwarded so it should work, but currently there's no platform which supports them to test
- support for a real NFS4 client (we don't have an accepted API yet)