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the message offset is largely calculated using the differences
between pointers in many places scattered throughout the code.
If we got one of these wrong, we could easily have a SIZE_MAX-ish
offset, which would be unfortunate if we came decided to display
the offset using spaces.
We can sanely limit the offset to the length of the SDDL.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
the way we parse things, we can't really distinguish between complete
nonsense and an ACL that seems to end early because of bad flags. That
is, "D:ZZ(A;;;;;WD)" looks the same as "ZZ" to the parser. But at least
we can point to the right place in the string.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The wrong number of semicolons is usually one less than count (which
counts sections separated by semicolons), except when count is zero.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This allows the messages to be more reliably presented by client tools
in a useful way.
The messages lose the trailing \n, and some were slightly tweaked (e.g.
s/Resource ACE/Resource Attribute ACE/).
They will still show up in logs for callers of sddl_decode(), but at
NOTICE level rather than WARNING.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Having it optionally NULL just complicates the code, and Coverity
rightly complained.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
As it stands, ace_conditions_compile_sddl() won't produce a message when
it succeeds (i.e. return non-NULL), so this debug is just clutter.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This will return an error message, if it can, along with an indicative
position.
For conditional ACEs the message might be accurate, and the position
fine-grained. For example, you might be able to construct the message
like this:
D:(XA;;CC;;;S-1-2-3;(@User.Title == !(@User.Title)))
^
16: unexpected operator
For non-conditional ACEs, the position typically points to the beginning
of the ACE, like this:
D:(D;OICI;GA;;;BG)(D;OICI;GA;;;AN)(A; OICI; GRGWGX;;;AU)
^
unknown error
Here the error is in the spaces either side of " OICI; ", but the pointer
points to the beginning of the ACE.
The old sddl_decode() function becomes a wrapper around the new function,
which inherits the guts of the old function.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is what Windows does, and it removes a couple of knownfails.
We can change it here cheaply without affecting the core dom_sid code,
which is good because there seem to be other places where we need the
uppercase S (for example in ldap search <SID=> queries).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
With this, Conditional ACEs and Resource Attribute ACEs in SDDL will
be parsed.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Will work when the ace_flags table is updated.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Will work when the ace_flags table is updated.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The decoding will not happen until "RA" is added to the ace_types table.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Conditional ACEs will not actually be decoded until the CALLBACK types
are added to the ace_types flag table.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
tabs not spaces.
It appears that my emacs got its configuration mixed up and was using
spaces.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Mirroring the last commit for sddl_decode_sid, we want to be able to
encode SIDs from sibling source files.
The dom_sid functions are insufficient for this because they don't know
the SDDL short aliases, like "WD".
sddl_transition_encode_sid() is used internally.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We are going to need it in for parsing SDDL for conditional ACEs and
resource ACEs, which will go in a separate file because it's huge.
This means changing the interface for `sddl_decode_sid` to that from
before 7d466a913f which introduced
sddl_transition_state to deal ease the shift to disambiguated machine/
domain/forest SIDs. Internal callers use `sddl_transition_decode_sid()`
which is the old function; external callers use the same shim pattern as
the other externally available functions.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Soon we will have Conditional ACEs and Resource Attribute ACEs. It is
expected --indeed mandatory-- that the SDDL representations of these
ACEs will contain parentheses, so we can't use '(' and ')' to decide
where ACEs stop and start.
This means shifting where we make a mutable copy of the SDDL string
from per-ACE to per-ACL, and allowing sddl_decode_ace() to decide when
its ACE is finished.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The revision has already been set at the start of this function.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
prior to this patch rights matching "FA", "FR", "FW", "FX" were
outputted as the hex string representing the bit value.
While outputting the hex string is perfectly fine, it makes it harder
to compare icacls output (which always uses the special string values)
Additionally adjust various tests to deal with use of shortcut access masks
as sddl format now uses FA, FR, FW & FX strings (like icalcs does) instead
of hex representation of the bit mask.
adjust
samba4.blackbox.samba-tool_ntacl
samba3.blackbox.large_acl
samba.tests.samba_tool.ntacl
samba.tests.ntacls
samba.tests.posixacl
so various string comparisons of the sddl format now pass
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
[abartlet@samba.org Adapted to new stricter SDDL behaviour around leading zeros in hex
numbers, eg 0x001]
value for FA should be 0x001f01ff (instead of 0x00001ff)
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
sddl_decode_sid() will stop at the first non-SID character. Windows
doesn't allow white space here, and nor do we.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Before we just ignored things like negative numbers, because they'd
end up being seen as not-numbers, so treated as flags, then as
not-flags.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We don't see this happening on Windows.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Our previous behaviour (at least with glibc) was to clip off the extra
bits, so that 0x123456789 would become 0x23456789. That's kind of the
obvious thing, but is not what Windows does, which is to saturate the
value, rounding to 0xffffffff. The effect of this is to turn on all
the flags, which quite possibly not what you meant.
Now we just return an error.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The string "S:D:P" is parsed by us and Windows into a valid struct,
which has an empty DACL with the PROTECTED flag, and an empty SACL.
This is reconstructed in canonical order as "D:PS:", which Windows
will correctly parse, but Samba has assumed the "S" is a bad DACL
flag. Now we don't make that assumption.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These occur canonically when the indentifier authority is > 2^32, but
also are accepted by Windows for any number.
There is a tricky case with an "O:" or "G:" SID that is immediately
followed by a "D:" dacl, because the "D" looks like a hex digit. When
we detect this we need to subtract one from the length.
We also need to do look out for trailing garbage. This was not an
issue before because any string caught by the strspn(...,
"-0123456789") would be either rejected or fully comsumed by
dom_sid_parse_talloc(), but with hex digits, a string like
"S-1-1-2x0xabcxxx-X" would be successfully parsed as "S-1-1-2", and
the "x0xabcxxx-X" would be skipped over. That's why we switch to using
dom_sid_parse_endp(), so we can compare the consumed length to the
expected length.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
previously a string could have anything in it, so long as every second
character was ':'.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This means that encoding an ACE in string form will now match Windows.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Mar 21 01:19:16 UTC 2023 on atb-devel-224
In future we need to pass in 3 sids to sddl_encode()
Once we pass in a machine_sid from the caller we need to
have a test on a Windows member if the .machine_rid values
really belong to the local machine sid.
At least [MS-DTYP] 2.4.2.4 Well-Known SID Structures
pretents "LA" and "LG" are relative to the local machine sid.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Mar 20 10:53:41 UTC 2023 on atb-devel-224
We should walk the sid_codes array just once.
This makes further changes easier...
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
