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This just simulates a threadpool, but executes the
job functions inline (blocking) in the main thread.
This will be used to work arround some OS limitations,
e.g. if per thread credentials or per thread working directory
are not supported.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This should in future not be used directly, we'll provide
wrapper pools, which will provide impersonation for
path based async calls.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This is handled by using the root_ev_ctx in order to register
the signal event.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
For now they just add debugging, but that will change shortly.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Jun 18 11:46:36 CEST 2018 on sn-devel-144
In future this will an impersonation wrapper tevent_context based on the
user session.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
They already call change_to_root_user(), which can be removed
later.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
For now these are just the same as smbd_server_connection->ev_ctx,
but this will change in future and we'll use impersonation wrappers.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This will replace smbd_server_connection->ev_ctx in the next commits.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is the same pointer and we don't have a lot of callers,
so we can just use one pointer.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is the same pointer and we don't have a lot of callers,
so we can just use one pointer.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
That makes it clearer that no tevent_context wrapper is used here
and the related code should really run without any (active) impersonation
as before.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
These are the two opcodes with DO_CHDIR, we don't want the
set_current_case_sensitive() logic for them,
so we don't need the full set_current_service() anymore.
The AS_USER case is already handled before, set_current_case_sensitive()
is called directly before change_to_user(), which already
calls chdir_current_service().
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
change_to_user() will soon call chdir_current_service() and we should
make sure conn->case_sensitive is prepared before calling vfs_ChDir().
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is just an optimization and it makes it clearer
that calling change_to_root_user() just before change_to_guest()
is useless and confusing.
We call change_to_guest() before set_current_service() now,
but that has no impact as we pass 'do_chdir=false'
as AS_GUEST is never mixed with AS_USER or DO_CHDIR.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Thu Jun 14 23:38:55 CEST 2018 on sn-devel-144
We already call allow_access() when we accept the connection
in smbd_add_connection().
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
result_independent_of_operands: "(outsize - 4 & 0xffffff) >> 16 >> 8" is
0 regardless of the values of its operands. This occurs as the bitwise
first operand of "&".
So we should just pass a variable to silence the warning. However for
this, we should calculate it correctly and use size_t for it.
Found by Coverity.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
One dependency of includes.h less
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Apr 24 22:26:22 CEST 2018 on sn-devel-144
pthreadpool_tevent_init() doesn't start any thread yet, it only
allocates a bit of memory.
It's easier to start this in a central place, so that it's
available to all VFS modules.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
The loop is unnecessary, both susv4 as well as the Linux manpage
explicitly say:
> These functions shall not return an error code of [EINTR].
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is required because we need a new pointer for LDB after the fork,
and with LMDB we can not longer rely on tdb_reopen_all() to do that
for us.
This can not be done in reinit_after_fork() due to the dependency loop
this would create.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Dec 5 04:58:26 CET 2017 on sn-devel-144
When setting up the chain, always use 'next->' variables
not the 'req->' one.
Bug discovered by 连一汉 <lianyihan@360.cn>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13041
Signed-off-by: Jeremy Allison <jra@samba.org>
We always return in the if-branch before. The else is redundant
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This prepares the same logic we've implemented in messages_dgm for clustering
that is used in 6d3c064f1a: We need to reply for messages from ctdb in nested
event contexts properly.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reported to the Samba Team by Yihan Lian <lianyihan@360.cn>, a security
researcher of Qihoo 360 GearTeam. Thanks a lot!
smb1_parse_chain() incorrectly used talloc_tos() for the memory
context of the chained smb1 requests. This gets freed between
requests so if a chained request goes async, the saved request
array also is freed, which causes a crash on resume.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12836
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Torture test to follow.
Signed-off-by: Per Forlin <per.forlin@gmail.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
rpmlint has a check for this and prefers to call chdir() before
chroot(). If not it will complain with
missing-call-to-chdir-with-chroot. The old code equivalent secure. See
http://unixwiz.net/techtips/chroot-practices.html
This removes several unneeded talloc_tos() calls.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Feb 13 03:50:54 CET 2016 on sn-devel-144
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Jan 22 11:06:05 CET 2016 on sn-devel-144
This is in preperation of connection passing where we have to set
seq_low to the mid from the negprot we've handed over.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Wed Oct 7 00:54:34 CEST 2015 on sn-devel-104
Add an option to wait_for_read_send(), so that the request, upon
calling back, report whether the socket actually contains data
or is in EOF/error state. EOF is signalled via the EPIPE error.
This is useful for clients which do not expect data to arrive but
wait for readability to detect a closed socket (i.e. they do not
intend to actually read the socket when it's readable). Actual data
arrival would indicate a bug in this case, so the check can
be used to print an error message.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11397
Signed-off-by: Uri Simchoni <urisimchoni@gmail.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11373
Guenther
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Guenther Deschner <gd@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
