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The Python level message has a reference to an LDB, which should be NULL,
or the same as the dn's LDB, lest one of them is freed early.
The message LDB will be NULL until a DN is set, and if the DN is replaced,
the LDB is also be replaced (see py_ldb_msg_set_dn), so it is *unlikely*
for these to get out of sync. In addition, fetching msg.dn via python
compares the LDBs at that point (py_ldb_msg_get_dn).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
for self->dn only. The other dn is a different story, next commit.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The `if (!pyldb_Dn_Check(pydn2))` might seem redundant, but we
need it to return Py_NotImplemented before the _OR_RAISE macro
raises TypeError.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We treat self as PyObject, and only trust its DN once it has been
laundered by PyErr_LDB_DN_OR_RAISE().
There are more of these to come in the next few commits, but these are
the simplest ones (on a textual level -- the others are simple too, but
look different).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This changes what happens all over the place
(lib/ldb/pyldb.c, source4/dns_server/pydns.c, source4/dsdb/pydsdb.c),
but causes no problems because it just checks what we always assumed.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is vital in our backup code, which needs to actually close the
LMDB at the correct point.
The Python ldb object itself is left in more or less the same state as
one that has not connected to a server or database (it is a very
simple wrapper in itself), and can be reconnected using the .connect()
method.
Pair-programmed-with: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This will help avoid use-after-free of the internally cached ldb within
struct ldb_dn by ensuring that it lives as long.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
While Active Directory does not support yet RFC 8009 encryption and
checksum types, it is possible to verify these checksums when running
with both MIT Kerberos and Heimdal Kerberos. This matters for FreeIPA
domain controller which uses them by default.
[2023/06/16 21:51:04.923873, 10, pid=51149, effective(0, 0), real(0, 0)]
../../lib/krb5_wrap/krb5_samba.c:1496(smb_krb5_kt_open_relative)
smb_krb5_open_keytab: resolving: FILE:/etc/samba/samba.keytab
[2023/06/16 21:51:04.924196, 2, pid=51149, effective(0, 0), real(0, 0),
class=auth] ../../auth/kerberos/kerberos_pac.c:66(check_pac_checksum)
check_pac_checksum: Checksum Type 20 is not supported
[2023/06/16 21:51:04.924228, 5, pid=51149, effective(0, 0), real(0, 0),
class=auth] ../../auth/kerberos/kerberos_pac.c:353(kerberos_decode_pac)
PAC Decode: Failed to verify the service signature: Invalid argument
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This honours MS-GKDI 3.1.4.1.1 Creating a New Root Key
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
We allow a fallback to ldb_strerror() even if there was an LDB context,
allowing failing functions to reset a previous error string but not
set a new one.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Now that pyldb-util is a private library to Samba, we have no excuses not to
consolidate helper functions like this.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This method does not take keyword arguments.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
We have the same function in tevent, no need to duplicate code. More lines just
due to clang-format.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Mar 22 06:07:42 UTC 2024 on atb-devel-224
We have the same function in tevent, no need to duplicate code.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
push should not have changed the struct, so it is valid to
try to print it also.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
It can be very hard to known where transitive checks fail, and this
will help.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15515
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
By printing into a buffer, we might notice some errors.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This LDB_FREE() seems to predate TALLOC_FREE(), and was identical
until TALLOC_FREE was optimised to avoid calling talloc_free(NULL) in
b9fcfc6399.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The comparison we make is unconventional, and makes no difference in
normal usage, where we just want to know whether two DNs are the same
or not. But with over 100 callers, it is possible that something
somewhere is attempting a sort.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
In the best case, this would have leaked.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
To avoid all the same logic, subtly different.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The two callers of this function want two very different things, the
common point was wanting to call smb_krb5_kt_seek_and_delete_old_entries()
however this is now done earlier in sdb_kt_copy() with
smb_krb5_remove_obsolete_keytab_entries() or an unlink() in
libnet_export_keytab().
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jo Sutton <josutton@catalyst.net.nz>
This just adds the key directly, it is not related to if salting is used or not.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jo Sutton <josutton@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jo Sutton <josutton@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Mar 5 03:55:33 UTC 2024 on atb-devel-224
We need to change the internal types assumed in Samba for the opaque
integers to "unsigned long long" as this is what ldb.set_opaque() will
create, and we want to move to this interface rather than have a
duplicate.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jo Sutton <josutton@catalyst.net.nz>
Just in case this LDB is given away into the C code, that opaque must live
as long as the LDB itself, not the python wrapper object.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jo Sutton <josutton@catalyst.net.nz>
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Sun Mar 3 23:33:44 UTC 2024 on atb-devel-224
We are about to modify ldb.set_opaque() to accept only certain types,
and ldb.Ldb is not one of those types.
Pass in a value that is supported and whose lifetime is guaranteed to
outlive the Ldb object.
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These exposed the private LDB modules API to python, and was
untested and broken since LDB was made async internally as
it never called ldb_wait() on the result.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This is now checked by PyArg_ParseTupleAndKeywords().
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
While these style of macros are against our coding style, it is still better
to have them in a single place, and while pyldb.h is technically public
Samba is the only user of the C bindings.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
We need to drop the reference to the list we created if we
are going to fail.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This will allow some packagers to set this to a directory that does
not mention Samba, or to put a version string in to avoid loading
old modules.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This is only parsed once now and there is no confusion with the main build, so we can set it without checking.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
We no longer need aspects of our build that made sense for the standalone
operation of LDB now that ldb is only provided as part of Samba.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This is not a simple replacement as we are merging the standalone build features with
the main Samba build features.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This code impacts on LDB, which is now built from the main build
so we need to combined this with the check that was in lib/ldb
or else we get conflicts.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Samba will either provide the LDB to the system, or use a
private ldb, we will not use any other LDB from the system.
This is essentially equilvilant to the patch Debian has used
for Samba 4.17 and later, named "Force-LDB-as-standalone.patch"
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Likewise, let the SAMBA_LIBRARY code handle being a private library
rather than in the library declaration.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Only Samba has ever used these utility functions, other applications can
still use our ldb python bindings, they just can not provide ldb
C bindings.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This is the last test left in the independent ldb testsuite,
removing this from there allows the test target to be removed.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This allows skip and knownfail entries to be honoured, as well
as enabling the removal of the standalone LDB build system.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
These tests now print subunit rather than the default output
as this is what the Samba selftest system needs.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Tests that are declared in the tests.py files in the main Samba build
are able to use the common knownfail, flapping and skip systems.
This will also allow the independent ldb build to be removed without
loss of the tests.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
You perhaps never want to manually create results (as in `x = Result()`)
-- except maybe in tests -- and that would be why we never added it in
the first place (or rather, we never noticed that it ws missing).
But we do want to sometimes go `isinstance(x, ldb.Result)`, and that
is how we noticed it was missing now.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The underlying function should return -1 and set errno when given invalid
strings, but we were not looking and have decided on 0 for error.
It would be a pain to change this function to return -1. Apart from the
API fuss, it is sometimes used unchecked to set an unsigned number and
an unchecked 0 is better than UINT*_MAX in those contexts.
It is probably not easy to get an -1 from a timegm() -- most
implementations will happily convert overflows for you, so e.g. the
15th month would be March of the next year. But EOVERFLOW is mentioned
in the manpages.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
A signed char, passed to snprintf(), will be promoted to an ‘int’, and
then interpreted (according to the format string) as an ‘unsigned int’.
Any negative values passed in will thus be interpreted as large unsigned
values, too large to be represented in the two characters allocated for
them. In practice, they will always be represented as ‘\xFF’.
Cast these characters to ‘unsigned char’, and use the appropriate length
modifier for that type.
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The condition ‘c > 0x1F’ is clearly meant to test whether a character is
a control code or not. While it works for ASCII characters, when ‘char’
is signed it fails for codepoints above 0x7f, which get represented as
negative values. Make this calculation work as it was (presumably)
intended by casting to ‘unsigned char’.
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These comments refer to controls being added, but in these functions the
controls are actually being *searched* for.
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
A C compiler would not be allowed to apply the tail call optimization in
this situation, because it would change the observed behaviour of the
program.
Signed-off-by: Jo Sutton <josutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
- documentation fixes
- build with Python 3.12 (bug #15513)
- a lot of additional error checking in
the python bindings
- minor code fixes
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15513
Signed-off-by: Jule Anger <janger@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
It means the completely zero'ed structure is detected
as zero address, as AF_UNSPEC is 0.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
gpfswrap_add_trace() seems not to have a format string that could
understand the %.*s notation.
While there this removes >4k of r/w memory from every smbd.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Jan 4 17:06:19 UTC 2024 on atb-devel-224
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): Fri Dec 22 06:31:29 UTC 2023 on atb-devel-224
The encoder, being cautious not to overstep the arbitrary 10000 byte
boundary, might not encode an exactly 10000 byte condition. This
is an off-by-one, but in the safe direction.
Credit to OSS-Fuzz.
REF: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=65118
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Dec 22 00:51:13 UTC 2023 on atb-devel-224
A u16string is supposed to contain UTF‐16 code units, but
ndr_pull_u16string() and ndr_push_u16string() fail to correctly ensure
this on big‐endian systems. Code that relies on the u16string array
containing correct values will then fail.
Fix ndr_pull_u16string() and ndr_push_u16string() to work on big‐endian
systems, ensuring that other code can use these strings without having
to worry about first encoding them to little‐endian.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The PUSH_*() macros already cast their arguments to the expected type,
so we don’t need to cast the arguments *again* prior to invoking the
macros.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If we’re just passing a parameter to another macro which we know
correctly parenthesizes its arguments, then we don’t need to
parenthesize the parameter ourselves.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These macros are now consistent with PUSH_BE_U8() and with the
PUSH_LE_*() macros.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is more portable than using preprocessor conditionals.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We also prodive a samba_copyright_string() helper similar to
samba_version_string().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15377
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Björn Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Dec 15 10:44:42 UTC 2023 on atb-devel-224
The corresponding code was removed with commit
11b3c6826d.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The call to memset_s() was supposed to replace the use of
ZERO_ARRAY_LEN(), but somehow both lines have crept in.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Do not use old macros which are not descriptive by the name.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Joseph Sutton <josephsutton@catalyst.net.nz>
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): Thu Nov 30 01:03:29 UTC 2023 on atb-devel-224
Our code won’t use this, but NIST’s test vectors are based on handing a
fixed buffer to the key derivation function.
View with ‘git show -b’.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is less error prone than having to ensure it’s cleaned up in every
error path.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We are going to need to alter the structure of this function a little
bit.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Rename smb2_key_derivation() to samba_gnutls_sp800_108_derive_key() and
move it to GNUTLS_HELPERS.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Using -1 as log level is not compatible without our infrastructure.
As all backends are initialized with .log_level = -1, which means
they don't log the message, but now they all try to handle the
startup message even if they are not configured.
E.g. is means that systemd's journalctl get the message twice
now, first via the syslog and also the systemd backend.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15377
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Björn Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
By default the priority for syslog/systemd is derived from
the log level of the debug message.
But for things like startup messages we want to
change the priority temporary, like this:
debug_set_forced_log_priority(DBGLVL_NOTICE);
D_ERR("Startup...\n");
debug_set_forced_log_priority(-1);
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15377
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Björn Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is in line with ‘talloc_str[n]dup()’.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
this is log level -1 and lowest syslog priority. This is used for start up
messages and copyright notices, which should always be printed but which are no
errors or warnings.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15377
Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This function returns the length in bytes — at most ‘n’ — of a UTF‐16
string excluding the null terminator.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Change ‘<’ to ‘<=’ so that we check the final UTF‐16 code unit in our
search for the null terminator. This makes no difference to the result:
if we’ve reached the final code unit without finding a terminator, the
final code unit will be included in the length whether it is a null
terminator or not.
Why make this change? We’re about to factor out this loop into a new
function, utf16_len_n(), where including the final code unit *will*
matter.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This function returns the length in bytes of a UTF‐16 string excluding
the null terminator.
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>
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>
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>
This matches the behaviour of Windows.
NOTE: This commit finally works again!
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15482
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The existing implementation did not differentiate between the case where
the relevant component was not present, and that where talloc_strndup()
failed. To correct this situation, put the result into an out parameter
on success and return an error on failure.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15482
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Consider the non-conforment utf-8 sequence "\xf5\x80\x80\x80", which
would encode 0x140000. We would set the high byte of the first
surrogate to 0xd8 | (0x130000 >> 18), or 0xdc, which is an invalid
start for a high surrogate, making the sequence as a whole invalid (as
you would expect -- the Unicode range was set precisely to that
covered by utf-16 surrogates).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
At present, if we meet a string like "hello \xed\xa7\x96 world", the
bytes in the middle will be converted into half of a surrogate pair,
and the UTF-16 will be invalid. It is better to error out immediately,
because the UTF-8 string is already invalid.
https://learn.microsoft.com/en-us/windows/win32/api/Stringapiset/nf-stringapiset-widechartomultibyte#remarks
is a citation for the statement about this being a pre-Vista
problem.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
because it wasn't entirely obvious (a zero length string returns a
length 1 result).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Previous commit to the "embarrassing" line was ce10a7a673 "Fix
typo in comment", which did not completely fix the typo in the
comment.
But there are no gotos anymore, so no embarrassment, however spelt.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Typically once the smb.conf starts to be loaded,
loadparm_s3_init_globals() will be called and a memory context for
strings on the static Globals will be created. But we might call
lpcfg_set_cmdline() before we load the smb.conf file, so we (via a
helper pointer) call loadparm_s3_init_globals() to get that
initialisation done earlier, ensuring that all allocations on Globals is
done on a memory context that we can later TALLOC_FREE() before exit().
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
