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This type represents a UTF‐16–encoded string. These strings are kept
UTF‐16–encoded rather than converted to the Unix charset to be stored in
memory; this avoids issues regarding NULL termination and conversion
between character sets. We want to be able to handle strings that are
not valid UTF‐16.
Not bumping the NDR ABI version, because there hasn’t been an NDR
release since commit c4f281e9ae.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Commit c51795c747 reorganized
ndr_pull_string() so that when we reach this DEBUG(), we don’t yet have
a string to log — ‘as’ will always be NULL. Attempting to log a NULL
string invokes undefined behaviour.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If the source string doesn’t need to be converted, there’s no reason for
it to be talloc‐allocated.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This ensures that ‘dest’ gets freed on failure.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The new name indicates that — contrary to functions such as strnlen() —
the length may include the terminator.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Using an enumeration rather than ‘uint32_t’ or ‘uint64_t’ means that
debuggers such as gdb can now associate the flag constants with their
respective types. This means that if you have an instance of these flags
types, the debugger will show you the individual flags that make up the
value rather than an inscrutable integer value.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
ndr_pull_string() prohibited this, but ndr_push_string() always masked
STR_NOTERM out. Now the set of allowed flags should be consistent
between the two functions.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This requires that, other than termination, no NUL (\0) codepoints
exist in the input string, because bytes beyon that will be lost
in the output string.
This in turn causes trouble for round-trip testing, so it is easiest
to reject it upfront (on an opt-in basis).
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
The failure to talloc_strdup("") is just an error and all other cases set the
string or given an error.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
This gives us thirty‐two new LIBNDR_ flags to play with.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Instead of ‘int’ or ‘uint32_t’, neither of which convey much meaning,
consistently use a newly added type to hold NDR_ flags.
Update the NDR 4.0.0 ABI.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The LIBNDR_FLAG_ namespace is getting dangerously full, with only a
single flag value (1 << 9) remaining for use. After that flag is put
into use, we won’t be able to add any new flags without increasing the
flag width to 64‐bit.
Up to now we’ve used a haphazard mix of int, unsigned, and uint32_t to
store these flags. Introduce a new type, ‘libndr_flags’, to be used
consistently to hold LIBNDR flags. If in the future we find we need to
move to 64‐bit flags, this type gives us an opportunity to do that.
Bump the NDR version to 4.0.0 — an major version increment, for we’re
changing the function ABI and adding the new symbol
ndr_print_libndr_flags.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
One advantage of this is that the type of the switch value is no longer
tied to the type of the NDR flags.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
smb3_file_posix_information is variable length with something behind.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Sep 27 03:38:00 UTC 2023 on atb-devel-224
Obviously it works fine, but we don't do it anywhere else.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Almost always the ACE has an `ignored` DATA_BLOB as the coda, and the
length of the coda is the length field of the blob, which is usually
zero.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
384 bytes is not a strict threshold below which claims are never to be
compressed. Windows has been known to compress claims a mere 368 bytes
in size.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Soon we will get Conditional ACEs and Resource Attribute ACES, each of
which have trailing bytes at the end of the ACE. Here's a diagram:
____ The ACE size field may indicate a size bigger
.type / | than the known parts, even when you take
.flags / | rounding to a multiple of four into account.
.size --' | This extra data is meaningful in some ACEs.
.access_mask |
.trustee (sid) _| <- known data ends here.
:
"coda" ___: <- the trailing part, Zero size unless the size
field points beyond the end of the known data.
Probably empty for ordinary ACE types.
Until now we have thrown away these extra bytes, because they have no
meaning in the ACE types we recognise. But with conditional and
resource attribute ACEs we need to catch and process these bytes, so
we add an extra field for that.
Thus we can drop the manually written ndr_pull_security_ace() that
discarded the trailing bytes, because we just allow it to be pulled
into an unused blob. In the very common case, the blob will be empty.
Microsoft does not use a common name across different ACE types to
describe this end-data -- "coda" is a Samba term.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This type behaves like a signed variant of ‘hyper’. Unlike the existing
‘dlong’ type, which has four byte alignment, ‘int64’ is aligned to eight
bytes.
Bump the NDR version to 3.0.1.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15452
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We are about to add a new enumeration constant (NUM_CHARSETS) to
charset_t. To do that we must have a default case in this switch
statement, or the compiler will refuse to compile it, stating that we
haven’t handled all the cases.
The alternative, adding a case for NUM_CHARSETS, would just look silly.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The arguments to these macros are occasionally of type size_t.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
max_length will always be greater than one, so we can use the plural.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
