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When an open file handle is used to change timestamps we fail to return
updated values to clients until next open is issued. Unless we fill in
the timestamps subsequent calls like GETINFO cannot see the latest value
causing incorrect results. Therefore copy those timestamp values as soon
as it is set on the backend.
Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We used to log the following message for both adding and dropping
capability:
DBG_INFO("added capability %d\n", capability);
For better clarity indicate the change as "added" or "dropped"
based on available functional arguments.
Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Autobuild-User(master): Anoop C S <anoopcs@samba.org>
Autobuild-Date(master): Sat Jan 20 18:43:10 UTC 2024 on atb-devel-224
We know the buffer size up-front, create a struct for that. Also, I
think if we ever hit another /proc pattern this is very likely on a
different OS that could be handled by an #ifdef.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This bases File-Ids on the inode numbers again. The whole stuff was
added because at that time Apple clients
1. would be upset by inode number reusage and
2. had a client side bug in their fallback implemetentation that
assigns File-Ids on the client side in case the server provides
File-Ids of 0.
After discussion with folks at Apple it should be safe these days to
rely on the Mac to generate its own File-Ids and let Samba return 0
File-Ids.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
It gets confusing if we call it "imaginary" or "instantiation"
in different places.
Signed-off-by: Jones Syue <jonessyue@qnap.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Jan 10 18:42:02 UTC 2022 on sn-devel-184
CLOCK_MONOTONIC (which we previously used) is reset
when the system is rebooted.
CLOCK_REALTIME is a "wall clock" time. It's still affected by NTP
changes (for Linux we should probably use CLOCK_TAI instead
but that is Linux-specific). For most systems CLOCK_REALTIME
will be good enough.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This first gets the clock_gettime_mono() value, converts to an NTTIME (as
this is what is stored in the dos attribute EA), then mixes in 8 bits of
randomness shifted up by 55 bits to cope with poor resolution clocks to
avoid duplicate inodes.
Using 8 bits of randomness on top of an NTTIME gives us around 114
years headroom. We can now guarentee returning a itime-based
fileid in a normal share (storing dos attributes in an EA).
Remove knownfail.d/fileid-unique
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14928
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Jan 8 06:35:22 UTC 2022 on sn-devel-184
LOCK_MAND will be deprecated in the Linux kernel, so stop using this
feature and remove the kernel_flock function.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
On MacOS sysconf(_SC_NGROUPS_MAX) always returns 16. However, this is not
the value used by getgroups(2). MacOS uses nested groups but getgroups(2)
will return the flattened list which can easily exceed 16 groups. In my
testing getgroups() already returns 16 groups on a freshly installed
system. And on a 10.14 system the root user is in more than 16 groups by
default which makes it impossible to run smbd without this change.
Setting _DARWIN_UNLIMITED_GETGROUPS allows getgroups() to return more than
16 groups. This also changes set_unix_security_ctx() to only set up to
16 groups since that is the limit for initgroups() according to the manpage.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=8773
Signed-off-by: Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Sep 9 17:43:19 UTC 2021 on sn-devel-184
It's always called with sizeof(buf)
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Feb 9 04:16:43 UTC 2021 on sn-devel-184
Fix clang compilation error:
error: format string is not a string literal [-Werror,-Wformat-nonliteral]
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
This routine looked fishy: We do cap_vals[num_cap_vals++] = XXX based
on #ifdefs and capabilities. Then later on we did a check that we did
not overwrite the stack. The change I did is to just count the number
of num_cap_vals++, right now it's 5. I know it is in different switch
branches, but with the #ifdefs it's a bit clumsy to read the exact
number of actual num_cap_vals++ that can happen in one run. On debian
buster, cap_val_t is an int, so this is not really wasting too much.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Commit 810397f89a, and possibly others, broke the build for macOS and
other environments which don't have st_[acm]tim fields on 'struct stat'.
Multiple places in the codebase used the config.h values to determine
how to access the nanosecond or microsecond values of the stat
timestamps, so rather than add more, centralize them all into
lib/util/time.c.
Also allow pvfs_fileinfo.c to read nanosecond-granularity timestamps on
platforms where it didn't before, since its #if branches were not
complete.
Signed-off-by: Matthew DeVore <matvore@google.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Sat Aug 15 08:51:09 UTC 2020 on sn-devel-184
MS-SMB2 and the smbd code refer to this field as share_access. Use the
same name in the function argument.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
st_ex_file_id is an immutable, never reused numeric identifier for objects in a
filesystem.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
st_ex_itime is an immutable original birth time aka instantiation time. Set when
a file is created, never changes thereafter. May not be set by the client.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This checks for posix_fallocate unless we are sitting on an ancient glibc.
With this we don't need HAVE_BROKEN_POSIX_FALLOCATE anymore,
HAVE_POSIX_FALLOCATE will only be defined if we have a valid [g]libc.
./configure tested on Debian, FreeBSD (which does have posix_fallocate) and
OpenBSD (which does not have posix_fallocate). Also tested with changing the
not have an old-enough glibc around. All did the right thing.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If setlen == 0 then the second argument must be ignored.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12747
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
This was added by Jeremy with 3cf31a194f, do the (C) accordingly
sys_popen is a pretty isolated functionality, and I'd like to use it
soon without "includes.h", needed by "proto.h"
Except for one malloc->talloc this is supposed to be a 1:1 copy
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>
Add sys_realpath() function that captures the OS variations
on realpath().
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
If Samba is configured with FALLOC_FL_PUNCH_HOLE support, then allow
sys_fallocate() to propogate the flag to syscall invocation.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The Linux fallocate syscall offers a mode parameter which can take the
following flags:
FALLOC_FL_KEEP_SIZE
FALLOC_FL_PUNCH_HOLE (since 2.6.38)
FALLOC_FL_COLLAPSE_RANGE (since 3.15)
FALLOC_FL_ZERO_RANGE (since 3.14)
The flags are not exclusive, e.g. FALLOC_FL_PUNCH_HOLE must be specified
alongside FALLOC_FL_KEEP_SIZE.
Samba currently takes a vfs_fallocate_mode enum parameter for the VFS
fallocate hook, taking either an EXTEND_SIZE or KEEP_SIZE value. This
commit changes the fallocate hook such that it accepts a uint32_t flags
parameter, in preparation for PUNCH_HOLE and ZERO_RANGE support.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The Linux kernel has a bug in that it can give spurious
wakeups on a non-blocking UDP socket for a non-deliverable packet.
When nmbd was changed to use non-blocking sockets it
became vulnerable to a spurious wakeup from poll/epoll.
Fix sys_recvfile() to return on EWOULDBLOCK/EAGAIN.
CVE-2014-0244
https://bugzilla.samba.org/show_bug.cgi?id=10633
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
printing.c was the last user of this syslog wrapper.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Autobuild-User(master): Günther Deschner <gd@samba.org>
Autobuild-Date(master): Wed Nov 20 10:19:32 CET 2013 on sn-devel-104
AIX uses struct stat64 with struct timespec64, so direct assignment does
not work any more.
Pair-Programmed-With: Volker Lendecke <vl@samba.org>
Signed-off-by: Christian Ambach <ambi@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Aug 2 09:47:43 CEST 2013 on sn-devel-104
