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Commit Graph

133043 Commits

Author SHA1 Message Date
Andrew Bartlett
334afc7157 pytest:sddl Samba had the wrong value for FA, now fix the tests
The tests that were in SddlWindowsFlagsAreDifferent have the behaviour
we want, and as we aim for Samba flags no longer being different, we
shift them to SddlNonCanonical. The tests in SddlSambaDoesItsOwnThing
are removed because they showed Samba's old behaviour around FA.

This will create knownfails, which will be fixed by the commit fixing the
value of "FA".

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
c0d477738e libcli:security:sddl: accept only 8-4-4-4-12 GUIDs
Before we would take strings in a variety of lengths and formats,
which is not what Windows does or [MS-DTYP] says.

This was found by looking at evolved fuzz seeds. Note the 16 and 32
byte sequences in GUID position below:

$ hd $(ls -t seeds/fuzz_sddl_parse/* | head -1)| head
00000000  44 3a 41 52 50 50 50 50  50 28 4f 4c 3b 3b 46 57  |D:ARPPPPP(OL;;FW|
00000010  3b 30 7e ff ff ff ff ff  ff ff 2d 31 38 f5 ff ff  |;0~.......-18...|
00000020  fb 3b 3b 52 43 29 28 4f  44 3b 3b 46 57 3b 3b 3b  |.;;RC)(OD;;FW;;;|
00000030  52 43 29 28 4f 44 3b 3b  46 57 3b 30 30 ff ff ff  |RC)(OD;;FW;00...|
00000040  fb 30 e9 9b 3c cf e6 f5  ff ff fb 3b 3b 52 43 29  |.0..<......;;RC)|
00000050  28 4f 44 3b 3b 46 57 43  52 3b 3b 3b 52 43 29 28  |(OD;;FWCR;;;RC)(|
00000060  4f 44 3b 3b 46 58 47 52  3b 3b 33 43 43 35 38 37  |OD;;FXGR;;3CC587|
00000070  32 35 44 44 44 44 44 44  44 44 44 44 44 44 44 44  |25DDDDDDDDDDDDDD|
00000080  44 44 44 44 44 44 44 44  44 44 3b 52 43 29 28 4f  |DDDDDDDDDD;RC)(O|
00000090  44 3b 3b 46 58 3b 3b 3b  52 43 29 28 4f 44 3b 3b  |D;;FX;;;RC)(OD;;|

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
4c1d9e92e1 pytest:large_ldap: use a valid ACE
Real ACEs don't have {} around their GUIDs. This will soon be banned.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
2e90ba7ec6 pytest:sddl: test we only accept normal GUIDs
By normal GUID, I mean ones like f30e3bbf-9ff0-11d1-b603-0000f80367c1,
with four hyphens and no curly braces.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
46793d384e libcli:security:sddl_decode_access allows spaces between flags
because Windows does.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
ec2d2f8ea8 pytest:sddl: tests around spaces in access flags and SIDs
It turns out that in accesss flags Windows will allow leading spaces
and spaces separating flags but not trailing spaces.

We choose to follow this in part because we found it happening in the
wild in our tests for upgradeprovision until a few commits ago.

Windows will also allow spaces in some parts of SIDs.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
0528da54b8 pytest:sddl debugging: should_fail test says how it failed
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
e7445aa677 libcli:security: sddl_decode_ace: don't allow junk after SID
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>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
c67f2292cb libcli/security: sddl_decode_access rejects trailing rubbish
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>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
faf1b80a90 libcli:security: sddl_map_flags rejects trailing nonsense
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
96fe7ebe3f s3:torture: sid2unixid2: DEBUG blames the right function
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
396d280546 s3:torture:LOCAL-IDMAP-TDB-COMMON: avoid talloc stacktrace
The short version is:

Running LOCAL-IDMAP-TDB-COMMON
test_getnewid1: PASSED!
test_setmap1: PASSED!
test_unixid2sid1: PASSED!
test_sid2unixid1: could not create uid map!
TEST LOCAL-IDMAP-TDB-COMMON FAILED!
LOCAL-IDMAP-TDB-COMMON took 0.029819 secs

Freed frame ../../source3/torture/torture.c:15748, expected ../../source3/torture/test_idmap_tdb_common.c:986.
===============================================================
INTERNAL ERROR: Frame not freed in order. in pid 3692106 (4.19.0pre1-DEVELOPERBUILD)
If you are running a recent Samba version, and if you think this problem is not yet fixed in the latest versions, please consider reporting this bug, see https://wiki.samba.org/index.php/Bug_Reporting
===============================================================
PANIC (pid 3692106): Frame not freed in order. in 4.19.0pre1-DEVELOPERBUILD
BACKTRACE: 11 stack frames:
 #0 bin/shared/private/libgenrand-samba4.so(log_stack_trace+0x32) [0x7f2f39b430ba]
 #1 bin/shared/private/libgenrand-samba4.so(smb_panic_log+0x1dd) [0x7f2f39b43037]
 #2 bin/shared/private/libgenrand-samba4.so(smb_panic+0x1c) [0x7f2f39b43056]
 #3 bin/shared/libsamba-util.so.0(+0x75309) [0x7f2f3a659309]
 #4 bin/shared/private/libtalloc-samba4.so(+0x5cc6) [0x7f2f3a758cc6]
 #5 bin/shared/private/libtalloc-samba4.so(+0x6173) [0x7f2f3a759173]
 #6 bin/shared/private/libtalloc-samba4.so(_talloc_free+0x10c) [0x7f2f3a75a54b]
 #7 /data/samba/samba-review/bin/smbtorture3(main+0xa97) [0x55cb3dc8cedc]
 #8 /lib/x86_64-linux-gnu/libc.so.6(+0x29d90) [0x7f2f396d4d90]
 #9 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80) [0x7f2f396d4e40]
 #10 /data/samba/samba-review/bin/smbtorture3(_start+0x25) [0x55cb3dc59895]
smb_panic(): calling panic action [/data/samba/samba-review/selftest/gdb_backtrace 3692106]

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
1d9712283b pytest:sddl: add tests for long DACLs, differing flag interpretations
Windows converts hex numbers into flags differently, and has different
ideas of what constitutes "FA", and possibly others.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
de6d470063 pytest:sddl: let hex numbers differ in case (0xa == 0xA)
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
030ce22f52 pytest:sddl: helpers to exchange SDDL strings with Windows testprogram
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
d9e1fa3456 libcli/security: SDDL parse tests to run on Windows
The C version tests the public SDDL API on Windows which seems to follow
Active Directory closely, though case in hex numbers is reversed vis-a-vis
defaultSecurityDescriptor.

The python version is less refined and tests powershell functions.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
97353c0091 pytest:sddl: SDDL strings where Windows behaviour differs
These ones we might want to match. They are understandable behaviours,
like matching lowercase flags and coping with whitespace in some
places. These tests are set up to document the differences without
overwhelming the knownfails.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
fb588d768b pytest:sddl: Add negative tests of unparseable strings
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
a2009b56b5 pytest:sddl: allow tests to make negative assertions
If the subclass has `should_succeed = False`, all the cases
in that class will be tested to ensure they can't be
successfully parsed.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
ba6f401340 pytest:sddl: split each string into it's own test
This of course allows for fine-grained knownfails.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
eac400b4db pytest:sddl: tweak some test strings
Adding, diversifying, and disambiguating. The leading portion of the
test stirngs will soon be used in the test name, and strings that
don't differ in the first hundred characters will cause naming
clashes. There is no good reason for them all to test the same flags
in the same order.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
4652d2766a pytest/sddl: split tests into canonical and non-canonical
The examples in the canonical list are already in the form that
Windows and Samba will use for that SD. We check the round trip.

The examples in the non-canonical list will change in a round trip, so
we also give the string we think they should end up as. These have
been checked on Windows.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
1107952c2b pytest/sddl: remove unused imports
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
ec85c1fdff pytest/sddl: rework to allow multiple lists, no early stop
The test will fail right now because it makes round trip assertions.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
4a24c52056 pytest/sddl: assert sddl string equality
It's not that I think our SD equality check will miss anything, but we
are here to test things like that.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
f87f63997f pytest/sddl: remove duplicate test case
The other copy is on line 102.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
298821a8ed pytest/sddl: give test more of a name
I think it worked, but the convention is that tests have a test_ prefix,
and it woudn't be surpoising if something somewhere decides to depend on
that.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
35bf8ff4f4 pytests/sddl: clarify boundaries between sddl cases
It is now easier to see where one SD ends and another starts.

Best looked at with -b or --word-diff.


Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
67500da148 pytest:posixacl: expect canonical ACE flag format
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
c08959d135 pytest:samba-tool ntacl: expect canonical ACE flag format
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
a655e7e496 py:provision: use canonical representation of ACE flags
This is because in ceetain places we compare strings rather than security
descriptors.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
e521b0a26a pytest:ntacls: adapt for canonical flag format
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
82b3281fff s3:test_larg_acl: adapt for the canonical ACE flags format
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
75a089dc46 test:bb/samba-tool ntacl: let return acl flag lack hex padding
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
16d2687cc7 libcli/security: do not pad sddl flags with zeros
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>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
251da186bf libcli/security: ace type is not enum not flags
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
56da318cee libcli/security: disallow sddl access masks greater than 32 bits
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>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
11add4d631 libcli/security: allow decimal/octal numbers in SDDL access mask
This follows Windows and [MS-DTYP].

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
5abd687fce lib/sec/sddl: allow empty non-trailing ACL with flags
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>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
7c97df1786 pytest:sddl: test empty DACL with flags
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
b621c59f64 libcli/sec/sddl decode: allow hex numbers in SIDs
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>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
22fe657c8a libcli/sec/sddl decode: don't ignore random junk.
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>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
4f5737cbf2 libcli/security/dom_sid: use (unsigned char) in isdigit()
The man page notes:

       The standards require that the argument c for these functions
       is either EOF or a value that is representable in the type
       unsigned char.  If the argument c is of type char, it must be
       cast to unsigned char, as in the following example:

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
1149d39159 libcli/security/dom_sid: hex but not octal is OK for sub-auth
Following Windows, the numbers that would be octal (e.g. "0123") are
converted to decimal by skipping over the zeros.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
67ff4ca200 libcli/security: avoid overflow in subauths
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
b3cff5636b libcli/security: stricter identauth parsing
We don't want octal numbers or overflows.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
6f37f8324c libcli/security: avoid overflow in revision number
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
2398faef23 libcli/security/dom_sid: remove a couple of lost comments
The second one came with code obsoleting the "BIG NOTE" about 10 years
ago, but that code later wandered off somewhere else.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
fe8ce9e34e pytest:sid_strings: Do bad SIDs fail differently in simple-bind?
No.

That's good and expected because a failure here should fall back to the
next thing in the simple bind pecking order (canonical names).

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00
Douglas Bagnall
a4bbd944ee pytest:sid_strings: do bad SIDS work in search filters?
Yes.

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-04-28 02:15:36 +00:00