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Guenther
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Guenther
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This will reduce the noise from merges of the rest of the
libcli/security code, without this commit changing what code
is actually used.
This includes (along with other security headers) dom_sid.h and
security_token.h
Andrew Bartlett
Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Tue Oct 12 05:54:10 UTC 2010 on sn-devel-104
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Guenther
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Guenther
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Guenther
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Guenther
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Jeremy.
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struct current_user current_user;"."
As requested by Volker, split this into smaller commits.
Jeremy.
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Use accessor functions to get to this value. Tidies up much of
the user context code. Volker, please look at the changes in smbd/uid.c
to familiarize yourself with these changes as I think they make the
logic in there cleaner.
Cause smbd/posix_acls.c code to look at current user context, not
stored context on the conn struct - allows correct use of these
function calls under a become_root()/unbecome_root() pair.
Jeremy.
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Jeremy.
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This often times means explicitly denying certain operations on a stream
as they are not supported or don't make sense at a particular level. At
some point in the future these can be enabled, but for now it's better to
remove ambiguity
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This patch introduces two new temporary helper functions
vfs_stat_smb_fname and vfs_lstat_smb_fname. They basically allowed me
to call the new smb_filename version of stat, while avoiding plumbing
it through callers that are still too inconvenient. As the conversion
moves along, I will be able to remove callers of this, with the goal
being to remove all callers.
There was also a bug in create_synthetic_smb_fname_split (also a
temporary utility function) that caused it to incorrectly handle
filenames with ':'s in them when in posix mode. This is now fixed.
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Fix a couple more unix_convert uses to filename_convert.
Fix bug in acl_group_override() where an uninitialized
struct could be used. Move unix_convert with wildcard
use in SMBsearch reply to boilerplate code.
Jeremy.
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I used the smb_filename struct everywhere that was feasible for the
first pass. There are still some places in this path that need to be
changed to use smb_filename, but this is a good start.
I also:
- Removed fname/path arguments from a few functions that weren't
really using them.
- Added a utility function for detecting whether an smb_filename is a
stream.
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The reason we couldn't delete was we were erroring out early
if requestor was not the owner of the file we wanted to delete,
instead of checking if the requestor owned the directory as well.
If either of these is true, we must go on and check the ACL.
Karolin, this is a must for 3.4.0 and also 3.3.next. I'll update
the bug report with patches for 3.4.0 and 3.3.next and ask vl
to review.
Jeremy.
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This patch introduces
struct stat_ex {
dev_t st_ex_dev;
ino_t st_ex_ino;
mode_t st_ex_mode;
nlink_t st_ex_nlink;
uid_t st_ex_uid;
gid_t st_ex_gid;
dev_t st_ex_rdev;
off_t st_ex_size;
struct timespec st_ex_atime;
struct timespec st_ex_mtime;
struct timespec st_ex_ctime;
struct timespec st_ex_btime; /* birthtime */
blksize_t st_ex_blksize;
blkcnt_t st_ex_blocks;
};
typedef struct stat_ex SMB_STRUCT_STAT;
It is really large because due to the friendly libc headers playing macro
tricks with fields like st_ino, so I renamed them to st_ex_xxx.
Why this change? To support birthtime, we already have quite a few #ifdef's at
places where it does not really belong. With a stat struct that we control, we
can consolidate the nanosecond timestamps and the birthtime deep in the VFS
stat calls.
At this moment it is triggered by a request to support the birthtime field for
GPFS. GPFS does not extend the system level struct stat, but instead has a
separate call that gets us the additional information beyond posix. Without
being able to do that within the VFS stat calls, that support would have to be
scattered around the main smbd code.
It will very likely break all the onefs modules, but I think the changes will
be reasonably easy to do.
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Jeremy
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delete file
This fixes the generic rename/delete problem for 3.3.0 and above.
Fixed slightly differently to discussions, user viewable modified
ACLs are not a good idea :-).
Jeremy.
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calculation of SEC_FLAG_MAXIMUM_ALLOWED much easier
for files.
Jeremy.
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No functional change, this is a preparation for more current_user ref removal
(This used to be commit dcaedf345e62ab74ea87f0a3fa1e3199c75c5445)
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With at least NFSv4 ACLs around the write permission for the owner is a bogus
check if we can delete a file in a directory. Like in Windows, there are two
ways which can grant us such: First, the DELETE permission on the file itself,
or if that does not help, the DELETE_CHILD permission on the directory. It
might be a bit more code that runs, but essentially we should end up with the
same set of syscalls in the non-acl case.
(This used to be commit daa9b056645a45edfb3a70e3536011ebe5678970)
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Michael
(This used to be commit 7d5fb873bde0a84de522650945effeaf602c759e)
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This is a security descriptor level function only.
Michael
(This used to be commit 5931540fa1681f026fed42df387d17e43c493c47)
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conn holds the current user info
(This used to be commit 093bc5f2b33ebf90e04bc17e51b1695b1b932bf2)
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being (correctly) used in the can_read/can_write checks for hide unreadable/unwritable
and this is more properly done using the functions in smbd/file_access.c.
Preparing to do NT access checks on all file access.
Jeremy.
(This used to be commit 6bfb06ad95963ae2acb67c4694a98282d3b29faa)
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there as it no longer uses explicit POSIX ACL calls.
Jeremy.
(This used to be commit ac1eac9b0d07b7b3d341c06ef1a8fd8f3c05a618)
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Up to now, get_nt_acl() took a files_struct pointer (fsp) and
a file name. All the underlying functions should need and now
do need (after the previous preparatory work), is a connection_struct
and a file name. The connection_struct is already there in the
vfs_handle passed to the vfs functions. So the files_struct
argument can be eliminated.
This eliminates the need of calling open_file_stat in a couple
of places to produce the fsp needed.
Michael
(This used to be commit b5f600fab53c9d159a958c59795db3ba4a8acc63)
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Calling can_access_file could lead to orphaned open files
when SMB_VFS_GET_NT_ACL returned ENOSYS (not implemented).
Michael
(This used to be commit f4f700cf0c1657c36e801fab20fe7b1a4efcb714)
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(This used to be commit dcbe1bf942d017a3cd5084c6ef605a13912f795b)
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Do directory vs file open before entering open_file_stat
(This used to be commit cd62122916defbfb57468c3b82a60b766fc4652e)
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to a new source file of their own.
Michael
(This used to be commit 9dd18bb534bca6b5de6cad9580b48681b36c0832)
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