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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>
This gives the caller the option to fail immediately if
TEVENT_FD_ERROR appear even with pending bytes in the
recv queue.
Servers typically want to activate this in order to avoid
pointless work, while clients typically want to read
pending responses from the recv queue.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This makes the logic introduced to fix bug #15202 simpler.
While developing this I noticed that a lot of callers
rely on the fact that they can read the pending bytes out
of the recv queue before EOF is reported.
So I changed the code handle TEVENT_FD_ERROR together with
TEVENT_FD_READ in a way that keep the existing callers happy.
In the next step we'll add a way to let callers opt-in in order
to fail immediately if TEVENT_FD_ERROR appears (even if there
are pending bytes remaining in the recv queue).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15202
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This mostly cosmetic, but now that we have TEVENT_FD_ERROR we should use it.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Unless err_on_readability is true, we use TEVENT_FD_READ only
to detect errors. Now that we have TEVENT_FD_ERROR we should use it.
As a side effect it makes the code much simpler and clearer, as
we can directly map TEVENT_FD_ERROR to EPIPE.
In addition the err_on_readability=true case is now also
clearer, where we just map TEVENT_FD_READ to EPIPE.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This mostly cosmetic, but now that we have TEVENT_FD_ERROR we should use it.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is nicer than calling getsockopt(state->fd, SOL_SOCKET, SO_ERROR)
directly.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is just a copy of the existing code...
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These are copies of the static functions in lib/tsocket/tsocket_bsd.c,
which we will replace in the next commit.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
- the epoll backend is no longer limited to 2 event handlers
per low level fd.
- finally add support for TEVENT_FD_ERROR
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Oct 13 10:45:51 UTC 2023 on atb-devel-224
After 12 years we finally got TEVENT_FD_ERROR support :-)
TEVENT_FD_WRITE event handlers never get errors reported
instead the event handler is silently disabled.
There are likely callers relying on that behavior, so
we are not able to chance it.
Now TEVENT_FD_WRITE can be used together with TEVENT_FD_ERROR
in order to get errors reported without waiting for TEVENT_FD_READ.
TEVENT_FD_ERROR can also be used alone in order to detect errors
on sockets in order to cleanup resources.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The tests the interaction of multiple event handlers on
the same low level fd.
It shows that poll and epoll backends behave in the
same fair way.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This allows any number of event handlers per low level fd.
It means the epoll backend behaves like the poll backend now.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Backends may require to map individual tevent_fd instances to
a single low level kernel state (e.g. for epoll).
This generic infrastructure adds helper functions using
a generic (sub)part of struct tevent_fd.
The new code will allow us to support more than 2 tevent_fd
instances per fd, which makes sure all backends can provide
a similar behavior. This will be important when we add
TEVENT_FD_ERROR as a 3rd kind of fd event.
The aim is to use this in order to replace the limited implementation
we already have in tevent_epoll.c.
As these helpers are typically called from within
'void tevent_fd_set_flags(struct tevent_fd *fde, uint16_t flags)'
there's no way to report errors. So in order avoid additional
error handling complexity the helpers try to avoid
any allocations which may fail. It also means the logic in
tevent_epoll.c doesn't have to change much.
These are implemented as static line functions in order to avoid
the function call overhead, which showed up in profiles of the
early implementation.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
It means tevent_trace_fd_callback(TEVENT_EVENT_TRACE_DETACH)
is always called and similar future changes are only
needed in one place.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
It turns out that the overhead of DLIST_DEMOTE() implemented
as DLIST_REMOVE();DLIST_ADD_END(), is very high if the list
contains only 1 or 2 elements.
The next commits will make use of DLIST_DEMOTE_SHORT() for
multiplexing multiple tevent_fd structures for a single fd
and the most important and common case is a list with just
one element.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
‘id’ is an unsigned variable, and so it can never be less than zero.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Commit 6b4d94c987 was a previous attempt
to fix this issue.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The rpcecho server is useful in development and testing, but should never
have been allowed into production, as it includes the facility to
do a blocking sleep() in the single-threaded rpc worker.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15474
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
‘tm’ must be initialized prior to calling strptime().
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
