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Accepting request 692960 from network:samba:STABLE

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OBS-URL: https://build.opensuse.org/request/show/692960
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/cifs-utils?expand=0&rev=59
This commit is contained in:
Dominique Leuenberger 2019-04-12 07:14:01 +00:00 committed by Git OBS Bridge
commit 56f0569ad1
18 changed files with 49 additions and 2346 deletions
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1120
0001-docs-cleanup-rst-formating.patch
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37
0002-mount.cifs.rst-document-new-no-handlecache-mount-opt.patch
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@ -1,37 +0,0 @@
From bfcbfaa27a6bcfea3d463e793feff5a983f344a5 Mon Sep 17 00:00:00 2001
From: Aurelien Aptel <aaptel@suse.com>
Date: Tue, 15 May 2018 10:40:48 +0200
Subject: [PATCH 02/10] mount.cifs.rst: document new (no)handlecache mount
option
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Reviewed-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <piastryyy@gmail.com>
---
mount.cifs.rst | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/mount.cifs.rst b/mount.cifs.rst
index c0f0bdb..405c459 100644
--- a/mount.cifs.rst
+++ b/mount.cifs.rst
@@ -237,6 +237,16 @@ cache=arg
The default in kernels prior to 3.7 was ``loose``. As of kernel 3.7 the
default is ``strict``.
+handlecache
+ (default) In SMB2 and above, the client often has to open the root
+ of the share (empty path) in various places during mount, path
+ revalidation and the statfs(2) system call. This option cuts
+ redundant round trip traffic (opens and closes) by simply keeping
+ the directory handle for the root around once opened.
+
+nohandlecache
+ Disable caching of the share root directory handle.
+
directio
Do not do inode data caching on files opened on this mount. This
precludes mmaping files on this mount. In some cases with fast
--
2.13.7

30
0003-manpage-update-mount.cifs-manpage-with-info-about-rd.patch
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@ -1,30 +0,0 @@
From 03a3296c79f8195f94c43a3b4feb09df75d9b90e Mon Sep 17 00:00:00 2001
From: Kenneth Dsouza <kdsouza@redhat.com>
Date: Fri, 13 Jul 2018 23:49:59 +0530
Subject: [PATCH 03/10] manpage: update mount.cifs manpage with info about rdma
option
Signed-off-by: Kenneth Dsouza <kdsouza@redhat.com>
---
mount.cifs.rst | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/mount.cifs.rst b/mount.cifs.rst
index 405c459..56c1bf9 100644
--- a/mount.cifs.rst
+++ b/mount.cifs.rst
@@ -403,6 +403,11 @@ echo_interval=n
If this option is not given then the default value of 60 seconds is used.
The minimum tunable value is 1 second and maximum can go up to 600 seconds.
+rdma
+ Use to connect to SMB Direct, only applicable when specified with
+ vers=3 or vers=3.x.
+ Here 3.x can be 3.0, 3.02 or 3.1.1.
+
serverino
Use inode numbers (unique persistent file identifiers) returned by the
server instead of automatically generating temporary inode numbers on
--
2.13.7

261
0004-checkopts-add-python-script-to-cross-check-mount-opt.patch
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@ -1,261 +0,0 @@
From 97209a56d13b8736579a58cccf00d2da4e4a0e5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Aur=C3=A9lien=20Aptel?= <aaptel@suse.com>
Date: Tue, 10 Jul 2018 17:50:42 +0200
Subject: [PATCH 04/10] checkopts: add python script to cross check mount
options
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
---
checkopts | 240 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 240 insertions(+)
create mode 100755 checkopts
diff --git a/checkopts b/checkopts
new file mode 100755
index 0000000..26ca271
--- /dev/null
+++ b/checkopts
@@ -0,0 +1,240 @@
+#!/usr/bin/env python3
+#
+# Script to check for inconsistencies between documented mount options
+# and implemented kernel options.
+# Copyright (C) 2018 Aurelien Aptel (aaptel@suse.com)
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import sys
+import re
+import subprocess
+import argparse
+from pprint import pprint as P
+
+def extract_canonical_opts(s):
+ """
+ Return list of option names present in s.
+ e.g "opt1=a|opt2=d" => ["opt1", "opt2"])
+ """
+ opts = s.split("|")
+ res = []
+ for o in opts:
+ x = o.split("=")
+ res.append(x[0])
+ return res
+
+def extract_kernel_opts(fn):
+ STATE_BASE = 0
+ STATE_DEF = 1
+ STATE_USE = 2
+ STATE_EXIT = 3
+
+ state = STATE_BASE
+ fmt2enum = {}
+ enum2code = {}
+ code = ''
+ current_opt = ''
+ rx = RX()
+
+ def code_add(s):
+ if current_opt != '':
+ if current_opt not in enum2code:
+ enum2code[current_opt] = ''
+ enum2code[current_opt] += s
+
+ with open(fn) as f:
+ for s in f.readlines():
+ if state == STATE_EXIT:
+ break
+
+ elif state == STATE_BASE:
+ if rx.search(r'cifs_mount_option_tokens.*\{', s):
+ state = STATE_DEF
+ elif rx.search(r'^cifs_parse_mount_options', s):
+ state = STATE_USE
+
+ elif state == STATE_DEF:
+ if rx.search(r'(Opt_[a-zA-Z0-9_]+)\s*,\s*"([^"]+)"', s):
+ fmt = rx.group(2)
+ opts = extract_canonical_opts(fmt)
+ assert(len(opts) == 1)
+ name = opts[0]
+ fmt2enum[name] = {'enum':rx.group(1), 'fmt':fmt}
+ elif rx.search(r'^};', s):
+ state = STATE_BASE
+
+ elif state == STATE_USE:
+ if rx.search(r'^\s*case (Opt_[a-zA-Z0-9_]+)', s):
+ current_opt = rx.group(1)
+ elif current_opt != '' and rx.search(r'^\s*default:', s):
+ state = STATE_EXIT
+ else:
+ code_add(s)
+ return fmt2enum, enum2code
+
+def chomp(s):
+ if s[-1] == '\n':
+ return s[:-1]
+ return s
+
+def extract_man_opts(fn):
+ STATE_EXIT = 0
+ STATE_BASE = 1
+ STATE_OPT = 2
+
+ state = STATE_BASE
+ rx = RX()
+ opts = {}
+
+ with open(fn) as f:
+ for s in f.readlines():
+ if state == STATE_EXIT:
+ break
+
+ elif state == STATE_BASE:
+ if rx.search(r'^OPTION', s):
+ state = STATE_OPT
+
+ elif state == STATE_OPT:
+ if rx.search('^[a-z]', s) and len(s) < 50:
+ s = chomp(s)
+ names = extract_canonical_opts(s)
+ for name in names:
+ opts[name] = s
+ elif rx.search(r'^[A-Z]+', s):
+ state = STATE_EXIT
+ return opts
+
+def format_code(s):
+ # remove common indent in the block
+ min_indent = None
+ for ln in s.split("\n"):
+ indent = 0
+ for c in ln:
+ if c == '\t': indent += 1
+ else: break
+ if min_indent is None:
+ min_indent = indent
+ elif indent > 0:
+ min_indent = min(indent, min_indent)
+ out = ''
+ lines = s.split("\n")
+ if lines[-1].strip() == '':
+ lines.pop()
+ for ln in lines:
+ out += "| %s\n" % ln[min_indent:]
+ return out
+
+def sortedset(s):
+ return sorted(list(s), key=lambda x: re.sub('^no', '', x))
+
+def opt_neg(opt):
+ if opt.startswith("no"):
+ return opt[2:]
+ else:
+ return "no"+opt
+
+def main():
+ ap = argparse.ArgumentParser(description="Cross-check mount options from cifs.ko/man page")
+ ap.add_argument("cfile", help="path to connect.c")
+ ap.add_argument("rstfile", help="path to mount.cifs.rst")
+ args = ap.parse_args()
+
+ fmt2enum, enum2code = extract_kernel_opts(args.cfile)
+ manopts = extract_man_opts(args.rstfile)
+
+ kernel_opts_set = set(fmt2enum.keys())
+ man_opts_set = set(manopts.keys())
+
+ def opt_alias_is_doc(o):
+ enum = fmt2enum[o]['enum']
+ aliases = []
+ for k,v in fmt2enum.items():
+ if k != o and v['enum'] == enum:
+ if opt_is_doc(k):
+ return k
+ return None
+
+ def opt_exists(o):
+ return o in fmt2enum
+
+ def opt_is_doc(o):
+ return o in manopts
+
+
+ print('UNDOCUMENTED OPTIONS')
+ print('====================')
+
+ undoc_opts = kernel_opts_set - man_opts_set
+ # group opts and their negations together
+ for opt in sortedset(undoc_opts):
+ fmt = fmt2enum[opt]['fmt']
+ enum = fmt2enum[opt]['enum']
+ code = format_code(enum2code[enum])
+ neg = opt_neg(opt)
+
+ if enum == 'Opt_ignore':
+ print("# skipping %s (Opt_ignore)\n"%opt)
+ continue
+
+ if opt_exists(neg) and opt_is_doc(neg):
+ print("# skipping %s (%s is documented)\n"%(opt, neg))
+ continue
+
+ alias = opt_alias_is_doc(opt)
+ if alias:
+ print("# skipping %s (alias %s is documented)\n"%(opt, alias))
+ continue
+
+ print('OPTION %s ("%s" -> %s):\n%s'%(opt, fmt, enum, code))
+
+ print('')
+ print('DOCUMENTED BUT NON-EXISTING OPTIONS')
+ print('===================================')
+
+ unex_opts = man_opts_set - kernel_opts_set
+ # group opts and their negations together
+ for opt in sortedset(unex_opts):
+ fmt = manopts[opt]
+ print('OPTION %s ("%s")' % (opt, fmt))
+
+
+ print('')
+ print('NEGATIVE OPTIONS WITHOUT POSITIVE')
+ print('=================================')
+
+ for opt in sortedset(kernel_opts_set):
+ if not opt.startswith('no'):
+ continue
+
+ neg = opt[2:]
+ if not opt_exists(neg):
+ print("OPTION %s exists but not %s"%(opt,neg))
+
+# little helper to test AND store result at the same time so you can
+# do if/elsif easily instead of nesting them when you need to do
+# captures
+class RX:
+ def __init__(self):
+ pass
+ def search(self, rx, s, flags=0):
+ self.r = re.search(rx, s, flags)
+ return self.r
+ def group(self, n):
+ return self.r.group(n)
+
+if __name__ == '__main__':
+ main()
--
2.13.7

219
0005-mount.cifs.rst-document-missing-options-correct-wron.patch
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@ -1,219 +0,0 @@
From 7325a01abc529d68756bae90cf23233392626939 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Aur=C3=A9lien=20Aptel?= <aaptel@suse.com>
Date: Tue, 10 Jul 2018 17:50:43 +0200
Subject: [PATCH 05/10] mount.cifs.rst: document missing options, correct wrong
ones
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
---
mount.cifs.rst | 111 ++++++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 79 insertions(+), 32 deletions(-)
diff --git a/mount.cifs.rst b/mount.cifs.rst
index 56c1bf9..13b3a1e 100644
--- a/mount.cifs.rst
+++ b/mount.cifs.rst
@@ -123,6 +123,11 @@ forcegid
of the gid= option. See the section on `FILE AND DIRECTORY OWNERSHIP
AND PERMISSIONS`_ below for more information.
+idsfromsid
+ Extract uid/gid from special SID instead of mapping it. See the
+ section on `FILE AND DIRECTORY OWNERSHIP AND PERMISSIONS`_ below for
+ more information.
+
port=arg
sets the port number on which the client will attempt to contact the
CIFS server. If this value is specified, look for an existing
@@ -133,8 +138,9 @@ port=arg
try to connect on port 445 first and then port 139 if that
fails. Return an error if both fail.
-servernetbiosname=arg
- Specify the server netbios name (RFC1001 name) to use when attempting
+
+netbiosname=arg
+ Specify the client netbios name (RFC1001 name) to use when attempting
to setup a session to the server. Although rarely needed for mounting
to newer servers, this option is needed for mounting to some older
servers (such as OS/2 or Windows 98 and Windows ME) since when
@@ -143,7 +149,8 @@ servernetbiosname=arg
characters long and is usually uppercased.
servern=arg
- Synonym for ``servernetbiosname``
+ Similarl to ``netbiosname`` except it specifies the netbios name of
+ the server instead of the client.
netbiosname=arg
When mounting to servers via port 139, specifies the RFC1001 source
@@ -166,6 +173,10 @@ ip=arg|addr=arg
domain=arg|dom=arg|workgroup=arg
sets the domain (workgroup) of the user.
+domainauto
+ When using NTLMv2 authentification and not providing a domain via
+ ``domain``, guess the domain from the server NTLM challenge.
+
guest
don't prompt for a password.
@@ -237,6 +248,9 @@ cache=arg
The default in kernels prior to 3.7 was ``loose``. As of kernel 3.7 the
default is ``strict``.
+nostrictsync
+ Do not flush to the server on fsync().
+
handlecache
(default) In SMB2 and above, the client often has to open the root
of the share (empty path) in various places during mount, path
@@ -247,32 +261,6 @@ handlecache
nohandlecache
Disable caching of the share root directory handle.
-directio
- Do not do inode data caching on files opened on this mount. This
- precludes mmaping files on this mount. In some cases with fast
- networks and little or no caching benefits on the client (e.g. when
- the application is doing large sequential reads bigger than page size
- without rereading the same data) this can provide better performance
- than the default behavior which caches reads (readahead) and writes
- (writebehind) through the local Linux client pagecache if oplock
- (caching token) is granted and held. Note that direct allows write
- operations larger than page size to be sent to the server. On some
- kernels this requires the cifs.ko module to be built with the
- ``CIFS_EXPERIMENTAL`` configure option.
-
- This option is will be deprecated in 3.7. Users should use
- ``cache=none`` instead on more recent kernels.
-
-strictcache
- Use for switching on strict cache mode. In this mode the client reads
- from the cache all the time it has *Oplock Level II* , otherwise -
- read from the server. As for write - the client stores a data in the
- cache in *Exclusive Oplock* case, otherwise - write directly to the
- server.
-
- This option is will be deprecated in 3.7. Users should use
- ``cache=strict`` instead on more recent kernels.
-
rwpidforward
Forward pid of a process who opened a file to any read or write
operation on that file. This prevent applications like wine(1) from
@@ -283,7 +271,7 @@ mapchars
including the colon, question mark, pipe, asterik, greater than and
less than characters) to the remap range (above 0xF000), which also
allows the CIFS client to recognize files created with such characters
- by Windows's POSIX emulation. This can also be useful when mounting to
+ by Windows's Services for Mac. This can also be useful when mounting to
most versions of Samba (which also forbids creating and opening files
whose names contain any of these seven characters). This has no effect
if the server does not support Unicode on the wire. Please note that
@@ -293,6 +281,10 @@ mapchars
nomapchars
(default) Do not translate any of these seven characters.
+mapposix
+ Translate reserved characters similarly to ``mapchars`` but use the
+ mapping from Microsoft "Services For Unix".
+
intr
currently unimplemented.
@@ -370,12 +362,42 @@ seal
Request encryption at the SMB layer. Encryption is only supported in
SMBv3 and above. The encryption algorithm used is AES-128-CCM.
+rdma
+ Connect directly to the server using SMB Direct via a RDMA adapter.
+
+resilienthandles
+ Enable resilient handles. If the server supports it, keep opened
+ files across reconenctions. Requires SMB2.1.
+
+noresilienthandles
+ (default) Disable resilient handles.
+
+persistenthandles
+ Enable persistent handles. If the server supports it, keep opened
+ files across reconnections. Persistent handles are also valid across
+ servers in a cluser and have stronger guarantees than resilient
+ handles. Requires SMB3 or above.
+
+nopersistenthandles
+ (default) Disable persistent handles.
+
+snapshot=time
+ Mount a specific snapshot of the remote share. ``time`` must be a
+ positive integer identifying the snapshot requested.
+
nobrl
Do not send byte range lock requests to the server. This is necessary
for certain applications that break with cifs style mandatory byte
range locks (and most cifs servers do not yet support requesting
advisory byte range locks).
+forcemandatorylock
+ Do not use POSIX locks even when available via unix
+ extensions. Always use cifs style mandatory locks.
+
+locallease
+ Check cache leases locally instead of querying the server.
+
sfu
When the CIFS Unix Extensions are not negotiated, attempt to create
device files and fifos in a format compatible with Services for Unix
@@ -431,8 +453,12 @@ noserverino
See section `INODE NUMBERS`_ for more information.
-nounix
- Disable the CIFS Unix Extensions for this mount. This can be useful in
+unix|linux
+ (default) Enable Unix Extensions for this mount. Requires CIFS
+ (vers=1.0) or SMB3.1.1 (vers=3.1.1) and a server supporting them.
+
+nounix|nolinux
+ Disable the Unix Extensions for this mount. This can be useful in
order to turn off multiple settings at once. This includes POSIX acls,
POSIX locks, POSIX paths, symlink support and retrieving
uids/gids/mode from the server. This can also be useful to work around
@@ -444,6 +470,23 @@ nouser_xattr
Do not allow getfattr/setfattr to get/set xattrs, even if server would
support it otherwise. The default is for xattr support to be enabled.
+nodfs
+ Do not follow Distributed FileSystem referals. IO on a file not
+ stored on the server will fail instead of connecting to the target
+ server transparently.
+
+noautotune
+ Use fixed size for kernel recv/send socket buffers.
+
+nosharesock
+ Do not try to reuse sockets if the system is already connected to
+ the server via an existing mount point. This will make the client
+ always make a new connection to the server no matter what he is
+ already connected to.
+
+noblocksend
+ Send data on the socket using non blocking operations (MSG_DONTWAIT flag).
+
rsize=bytes
Maximum amount of data that the kernel will request in a read request
in bytes. Prior to kernel 3.2.0, the default was 16k, and the maximum
@@ -472,6 +515,10 @@ wsize=bytes
this value isn't specified or it's greater or equal than the existing
one.
+max_credits=n
+ Maximum credits the SMB2 client can have. Default is 32000. Must be
+ set to a number between 20 and 60000.
+
fsc
Enable local disk caching using FS-Cache for CIFS. This option could
be useful to improve performance on a slow link, heavily loaded server
--
2.13.7

50
0006-cifs-utils-support-rst2man-3.patch
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@ -1,50 +0,0 @@
From a389756f51916995d27819ea1807ab03f36d8dd7 Mon Sep 17 00:00:00 2001
From: Alexander Bokovoy <ab@samba.org>
Date: Tue, 17 Jul 2018 13:12:44 +0300
Subject: [PATCH 06/10] cifs-utils: support rst2man-3
Python3 version of rst2man is called rst2man-3
Signed-off-by: Alexander Bokovoy <ab@samba.org>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
---
Makefile.am | 2 +-
configure.ac | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/Makefile.am b/Makefile.am
index 30658e3..f37c9ae 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -16,7 +16,7 @@ man_MANS=
SUFFIXES = .rst .1 .8
-RST2MAN = rst2man --syntax-highlight=none $< $@
+RST2MAN = $(have_rst2man) --syntax-highlight=none $< $@
.rst.1:
$(RST2MAN)
diff --git a/configure.ac b/configure.ac
index b0bc2b9..8e3d6ce 100644
--- a/configure.ac
+++ b/configure.ac
@@ -252,12 +252,12 @@ fi
# if docs are not disabled, check if rst2man is available
if test $enable_man != "no"; then
- AC_CHECK_PROG(have_rst2man, rst2man, yes, no)
+ AC_CHECK_PROGS(have_rst2man, rst2man-3.6 rst2man-3.4 rst2man-3 rst2man, no)
if test $have_rst2man = "no"; then
if test $enable_man = "yes"; then
- AC_MSG_ERROR([rst2man not found: cannot generate man pages, consider installing perl.])
+ AC_MSG_ERROR([rst2man not found: cannot generate man pages, consider installing python{2,3}-docutils.])
else
- AC_MSG_WARN([rst2man not found: cannot generate man pages, consider installing perl. Disabling man page generation.])
+ AC_MSG_WARN([rst2man not found: cannot generate man pages, consider installing python{2,3}-docutils. Disabling man page generation.])
enable_man="no"
fi
else
--
2.13.7

67
0007-checkopts-report-duplicated-options-in-man-page.patch
View File

@ -1,67 +0,0 @@
From 77b028c11fee787d1235a08fd06c8b60d20eb9c0 Mon Sep 17 00:00:00 2001
From: Aurelien Aptel <aaptel@suse.com>
Date: Wed, 8 Aug 2018 11:38:15 +0200
Subject: [PATCH 07/10] checkopts: report duplicated options in man page
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
---
checkopts | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/checkopts b/checkopts
index 26ca271..88e70b1 100755
--- a/checkopts
+++ b/checkopts
@@ -98,9 +98,12 @@ def extract_man_opts(fn):
state = STATE_BASE
rx = RX()
opts = {}
+ ln = 0
with open(fn) as f:
for s in f.readlines():
+ ln += 1
+
if state == STATE_EXIT:
break
@@ -113,7 +116,9 @@ def extract_man_opts(fn):
s = chomp(s)
names = extract_canonical_opts(s)
for name in names:
- opts[name] = s
+ if name not in opts:
+ opts[name] = []
+ opts[name].append({'ln':ln, 'fmt':s})
elif rx.search(r'^[A-Z]+', s):
state = STATE_EXIT
return opts
@@ -174,6 +179,14 @@ def main():
def opt_is_doc(o):
return o in manopts
+ print('DUPLICATED DOC OPTIONS')
+ print('======================')
+
+ for opt in sortedset(man_opts_set):
+ if len(manopts[opt]) > 1:
+ lines = ", ".join([str(x['ln']) for x in manopts[opt]])
+ print("OPTION %-20.20s (lines %s)"%(opt, lines))
+ print()
print('UNDOCUMENTED OPTIONS')
print('====================')
@@ -208,8 +221,8 @@ def main():
unex_opts = man_opts_set - kernel_opts_set
# group opts and their negations together
for opt in sortedset(unex_opts):
- fmt = manopts[opt]
- print('OPTION %s ("%s")' % (opt, fmt))
+ man = manopts[opt][0]
+ print('OPTION %s ("%s") line %d' % (opt, man['fmt'], man['ln']))
print('')
--
2.13.7

159
0008-mount.cifs.rst-more-cleanups.patch
View File

@ -1,159 +0,0 @@
From 06503ef4490a3dde4e8297cf1c5cb336ba43aafa Mon Sep 17 00:00:00 2001
From: Aurelien Aptel <aaptel@suse.com>
Date: Wed, 8 Aug 2018 11:38:16 +0200
Subject: [PATCH 08/10] mount.cifs.rst: more cleanups
* remove duplicates (netbiosname, rdma)
* remove snapshot
* document nostrictsync, domain, domainauto better
* point to vers= when talking about version requirements
* typos
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
---
mount.cifs.rst | 61 ++++++++++++++++++++++++++++------------------------------
1 file changed, 29 insertions(+), 32 deletions(-)
diff --git a/mount.cifs.rst b/mount.cifs.rst
index 13b3a1e..3504477 100644
--- a/mount.cifs.rst
+++ b/mount.cifs.rst
@@ -138,25 +138,20 @@ port=arg
try to connect on port 445 first and then port 139 if that
fails. Return an error if both fail.
-
netbiosname=arg
- Specify the client netbios name (RFC1001 name) to use when attempting
- to setup a session to the server. Although rarely needed for mounting
+ When mounting to servers via port 139, specifies the RFC1001 source
+ name to use to represent the client netbios machine during the netbios
+ session initialization.
+
+servern=arg
+ Similar to ``netbiosname`` except it specifies the netbios name of
+ the server instead of the client. Although rarely needed for mounting
to newer servers, this option is needed for mounting to some older
servers (such as OS/2 or Windows 98 and Windows ME) since when
connecting over port 139 they, unlike most newer servers, do not
support a default server name. A server name can be up to 15
characters long and is usually uppercased.
-servern=arg
- Similarl to ``netbiosname`` except it specifies the netbios name of
- the server instead of the client.
-
-netbiosname=arg
- When mounting to servers via port 139, specifies the RFC1001 source
- name to use to represent the client netbios machine name when doing
- the RFC1001 netbios session initialize.
-
file_mode=arg
If the server does not support the CIFS Unix extensions this overrides
the default file mode.
@@ -171,11 +166,14 @@ ip=arg|addr=arg
rarely needs to be specified by the user.
domain=arg|dom=arg|workgroup=arg
- sets the domain (workgroup) of the user.
+ Sets the domain (workgroup) of the user. If no domains are given,
+ the empty domain will be used. Use ``domainauto`` to automatically
+ guess the domain of the server you are connecting to.
domainauto
- When using NTLMv2 authentification and not providing a domain via
+ When using NTLM authentication and not providing a domain via
``domain``, guess the domain from the server NTLM challenge.
+ This behavior used to be the default on kernels older than 2.6.36.
guest
don't prompt for a password.
@@ -249,7 +247,14 @@ cache=arg
default is ``strict``.
nostrictsync
- Do not flush to the server on fsync().
+ Do not ask the server to flush on fsync().
+ Some servers perform non-buffered writes by default in which case
+ flushing is redundant. In workloads where a client is performing a
+ lot of small write + fsync combinations and where network latency is
+ much higher than the server latency, this brings a 2x performance
+ improvement.
+ This option is also a good candidate in scenarios where we want
+ performance over consistency.
handlecache
(default) In SMB2 and above, the client often has to open the root
@@ -359,15 +364,16 @@ sec=arg
automatically if it's enabled in */proc/fs/cifs/SecurityFlags*.
seal
- Request encryption at the SMB layer. Encryption is only supported in
- SMBv3 and above. The encryption algorithm used is AES-128-CCM.
+ Request encryption at the SMB layer. The encryption algorithm used
+ is AES-128-CCM. Requires SMB3 or above (see ``vers``).
rdma
- Connect directly to the server using SMB Direct via a RDMA adapter.
+ Connect directly to the server using SMB Direct via a RDMA
+ adapter. Requires SMB3 or above (see ``vers``).
resilienthandles
Enable resilient handles. If the server supports it, keep opened
- files across reconenctions. Requires SMB2.1.
+ files across reconnections. Requires SMB2.1 (see ``vers``).
noresilienthandles
(default) Disable resilient handles.
@@ -375,16 +381,12 @@ noresilienthandles
persistenthandles
Enable persistent handles. If the server supports it, keep opened
files across reconnections. Persistent handles are also valid across
- servers in a cluser and have stronger guarantees than resilient
- handles. Requires SMB3 or above.
+ servers in a cluster and have stronger guarantees than resilient
+ handles. Requires SMB3 or above (see ``vers``).
nopersistenthandles
(default) Disable persistent handles.
-snapshot=time
- Mount a specific snapshot of the remote share. ``time`` must be a
- positive integer identifying the snapshot requested.
-
nobrl
Do not send byte range lock requests to the server. This is necessary
for certain applications that break with cifs style mandatory byte
@@ -396,7 +398,7 @@ forcemandatorylock
extensions. Always use cifs style mandatory locks.
locallease
- Check cache leases locally instead of querying the server.
+ Check cached leases locally instead of querying the server.
sfu
When the CIFS Unix Extensions are not negotiated, attempt to create
@@ -425,11 +427,6 @@ echo_interval=n
If this option is not given then the default value of 60 seconds is used.
The minimum tunable value is 1 second and maximum can go up to 600 seconds.
-rdma
- Use to connect to SMB Direct, only applicable when specified with
- vers=3 or vers=3.x.
- Here 3.x can be 3.0, 3.02 or 3.1.1.
-
serverino
Use inode numbers (unique persistent file identifiers) returned by the
server instead of automatically generating temporary inode numbers on
@@ -471,7 +468,7 @@ nouser_xattr
support it otherwise. The default is for xattr support to be enabled.
nodfs
- Do not follow Distributed FileSystem referals. IO on a file not
+ Do not follow Distributed FileSystem referrals. IO on a file not
stored on the server will fail instead of connecting to the target
server transparently.
--
2.13.7

25
0009-mount.cifs.rst-document-vers-3-mount-option.patch
View File

@ -1,25 +0,0 @@
From 439cd76f72a2dd3c65fd7d30ece460cde6b9675d Mon Sep 17 00:00:00 2001
From: Pavel Shilovsky <pshilov@microsoft.com>
Date: Fri, 17 Aug 2018 11:08:58 -0700
Subject: [PATCH 09/10] mount.cifs.rst: document vers=3 mount option
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
---
mount.cifs.rst | 1 +
1 file changed, 1 insertion(+)
diff --git a/mount.cifs.rst b/mount.cifs.rst
index 3504477..6587e16 100644
--- a/mount.cifs.rst
+++ b/mount.cifs.rst
@@ -592,6 +592,7 @@ vers=arg
- 2.1 - The SMBv2.1 protocol that was introduced in Microsoft Windows 7 and Windows Server 2008R2.
- 3.0 - The SMBv3.0 protocol that was introduced in Microsoft Windows 8 and Windows Server 2012.
- 3.1.1 or 3.11 - The SMBv3.1.1 protocol that was introduced in Microsoft Windows Server 2016.
+ - 3 - The SMBv3.0 protocol version and above.
Note too that while this option governs the protocol version used, not
all features of each version are available.
--
2.13.7

25
0010-mount.cifs.rst-document-vers-3.02-mount-option.patch
View File

@ -1,25 +0,0 @@
From 3c7e8c3663f50c2d2df6158cc4d22c4fccdc8ae8 Mon Sep 17 00:00:00 2001
From: Pavel Shilovsky <pshilov@microsoft.com>
Date: Fri, 17 Aug 2018 11:13:45 -0700
Subject: [PATCH 10/10] mount.cifs.rst: document vers=3.02 mount option
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
---
mount.cifs.rst | 1 +
1 file changed, 1 insertion(+)
diff --git a/mount.cifs.rst b/mount.cifs.rst
index 6587e16..a0faf7f 100644
--- a/mount.cifs.rst
+++ b/mount.cifs.rst
@@ -591,6 +591,7 @@ vers=arg
different dialect (2.000) that is not supported.
- 2.1 - The SMBv2.1 protocol that was introduced in Microsoft Windows 7 and Windows Server 2008R2.
- 3.0 - The SMBv3.0 protocol that was introduced in Microsoft Windows 8 and Windows Server 2012.
+ - 3.02 - The SMBv3.0.2 protocol that was introduced in Microsoft Windows 8.1 and Windows Server 2012R2.
- 3.1.1 or 3.11 - The SMBv3.1.1 protocol that was introduced in Microsoft Windows Server 2016.
- 3 - The SMBv3.0 protocol version and above.
--
2.13.7

268
allow-dns-resolver-key-to-expire.patch
View File

@ -1,268 +0,0 @@
From paulo@paulo.ac Wed Feb 13 18:09:41 2019
Return-path: <linux-cifs-owner@vger.kernel.org>
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From: Paulo Alcantara <paulo@paulo.ac>
To: linux-cifs@vger.kernel.org
Cc: smfrench@gmail.com, aaptel@suse.com, piastryyy@gmail.com,
Paulo Alcantara <paulo@paulo.ac>,
Paulo Alcantara <palcantara@suse.de>
Subject: [PATCH] cifs: Allow DNS resolver key to expire
Date: Wed, 13 Feb 2019 16:09:41 -0200
Message-Id: <20190213180941.2587-1-paulo@paulo.ac>
X-Mailer: git-send-email 2.20.1
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: linux-cifs-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-cifs.vger.kernel.org>
X-Mailing-List: linux-cifs@vger.kernel.org
This patch introduces a new '--expire' option that allows the user to
set a timeout value for the dns resolver key -- which is typically
useful for hostnames that may get their ip addresses changed under
long running mounts.
The default timeout value is set to 10 minutes.
Signed-off-by: Paulo Alcantara <palcantara@suse.de>
---
cifs.upcall.c | 88 +++++++++++++++++++++++++++++++++-------------
cifs.upcall.rst.in | 5 ++-
2 files changed, 67 insertions(+), 26 deletions(-)
diff --git a/cifs.upcall.c b/cifs.upcall.c
index 89563fd42adc..c92ee62f6764 100644
--- a/cifs.upcall.c
+++ b/cifs.upcall.c
@@ -63,6 +63,8 @@
static krb5_context context;
static const char *prog = "cifs.upcall";
+#define DNS_RESOLVER_DEFAULT_TIMEOUT 600 /* 10 minutes */
+
typedef enum _sectype {
NONE = 0,
KRB5,
@@ -749,19 +751,48 @@ decode_key_description(const char *desc, struct decoded_args *arg)
return retval;
}
-static int cifs_resolver(const key_serial_t key, const char *key_descr)
+static int setup_key(const key_serial_t key, const void *data, size_t datalen)
+{
+ int rc;
+
+ rc = keyctl_instantiate(key, data, datalen, 0);
+ if (rc) {
+ switch (errno) {
+ case ENOMEM:
+ case EDQUOT:
+ rc = keyctl_clear(key);
+ if (rc) {
+ syslog(LOG_ERR, "%s: keyctl_clear: %s",
+ __func__, strerror(errno));
+ return rc;
+ }
+ rc = keyctl_instantiate(key, data, datalen, 0);
+ break;
+ default:
+ ;
+ }
+ }
+ if (rc) {
+ syslog(LOG_ERR, "%s: keyctl_instantiate: %s",
+ __func__, strerror(errno));
+ }
+ return rc;
+}
+
+static int cifs_resolver(const key_serial_t key, const char *key_descr,
+ const char *key_buf, unsigned expire_time)
{
int c;
struct addrinfo *addr;
char ip[INET6_ADDRSTRLEN];
void *p;
- const char *keyend = key_descr;
+ const char *keyend = key_buf;
/* skip next 4 ';' delimiters to get to description */
for (c = 1; c <= 4; c++) {
keyend = index(keyend + 1, ';');
if (!keyend) {
syslog(LOG_ERR, "invalid key description: %s",
- key_descr);
+ key_buf);
return 1;
}
}
@@ -787,15 +818,21 @@ static int cifs_resolver(const key_serial_t key, const char *key_descr)
return 1;
}
- /* setup key */
- c = keyctl_instantiate(key, ip, strlen(ip) + 1, 0);
- if (c == -1) {
- syslog(LOG_ERR, "%s: keyctl_instantiate: %s", __func__,
- strerror(errno));
- freeaddrinfo(addr);
- return 1;
- }
+ /* needed for keyctl_set_timeout() */
+ request_key("keyring", key_descr, NULL, KEY_SPEC_THREAD_KEYRING);
+ c = setup_key(key, ip, strlen(ip) + 1);
+ if (c) {
+ freeaddrinfo(addr);
+ return 1;
+ }
+ c = keyctl_set_timeout(key, expire_time);
+ if (c) {
+ syslog(LOG_ERR, "%s: keyctl_set_timeout: %s", __func__,
+ strerror(errno));
+ freeaddrinfo(addr);
+ return 1;
+ }
freeaddrinfo(addr);
return 0;
}
@@ -864,7 +901,7 @@ lowercase_string(char *c)
static void usage(void)
{
- fprintf(stderr, "Usage: %s [ -K /path/to/keytab] [-k /path/to/krb5.conf] [-E] [-t] [-v] [-l] key_serial\n", prog);
+ fprintf(stderr, "Usage: %s [ -K /path/to/keytab] [-k /path/to/krb5.conf] [-E] [-t] [-v] [-l] [-e nsecs] key_serial\n", prog);
}
static const struct option long_options[] = {
@@ -874,6 +911,7 @@ static const struct option long_options[] = {
{"trust-dns", 0, NULL, 't'},
{"keytab", 1, NULL, 'K'},
{"version", 0, NULL, 'v'},
+ {"expire", 1, NULL, 'e'},
{NULL, 0, NULL, 0}
};
@@ -897,13 +935,15 @@ int main(const int argc, char *const argv[])
char *env_cachename = NULL;
krb5_ccache ccache = NULL;
struct passwd *pw;
+ unsigned expire_time = DNS_RESOLVER_DEFAULT_TIMEOUT;
+ const char *key_descr = NULL;
hostbuf[0] = '\0';
memset(&arg, 0, sizeof(arg));
openlog(prog, 0, LOG_DAEMON);
- while ((c = getopt_long(argc, argv, "cEk:K:ltv", long_options, NULL)) != -1) {
+ while ((c = getopt_long(argc, argv, "cEk:K:ltve:", long_options, NULL)) != -1) {
switch (c) {
case 'c':
/* legacy option -- skip it */
@@ -931,6 +971,9 @@ int main(const int argc, char *const argv[])
rc = 0;
printf("version: %s\n", VERSION);
goto out;
+ case 'e':
+ expire_time = strtoul(optarg, NULL, 10);
+ break;
default:
syslog(LOG_ERR, "unknown option: %c", c);
goto out;
@@ -965,9 +1008,12 @@ int main(const int argc, char *const argv[])
syslog(LOG_DEBUG, "key description: %s", buf);
- if ((strncmp(buf, "cifs.resolver", sizeof("cifs.resolver") - 1) == 0) ||
- (strncmp(buf, "dns_resolver", sizeof("dns_resolver") - 1) == 0)) {
- rc = cifs_resolver(key, buf);
+ if (strncmp(buf, "cifs.resolver", sizeof("cifs.resolver") - 1) == 0)
+ key_descr = ".cifs.resolver";
+ else if (strncmp(buf, "dns_resolver", sizeof("dns_resolver") - 1) == 0)
+ key_descr = ".dns_resolver";
+ if (key_descr) {
+ rc = cifs_resolver(key, key_descr, buf, expire_time);
goto out;
}
@@ -1193,16 +1239,8 @@ retry_new_hostname:
memcpy(&(keydata->data) + keydata->sesskey_len,
secblob.data, secblob.length);
- /* setup key */
- rc = keyctl_instantiate(key, keydata, datalen, 0);
- if (rc == -1) {
- syslog(LOG_ERR, "keyctl_instantiate: %s", strerror(errno));
- goto out;
- }
+ rc = setup_key(key, keydata, datalen);
- /* BB: maybe we need use timeout for key: for example no more then
- * ticket lifietime? */
- /* keyctl_set_timeout( key, 60); */
out:
/*
* on error, negatively instantiate the key ourselves so that we can
diff --git a/cifs.upcall.rst.in b/cifs.upcall.rst.in
index 1b8df3f31d94..08ce324fc5f6 100644
--- a/cifs.upcall.rst.in
+++ b/cifs.upcall.rst.in
@@ -13,7 +13,7 @@ SYNOPSIS
cifs.upcall [--trust-dns|-t] [--version|-v] [--legacy-uid|-l]
[--krb5conf=/path/to/krb5.conf|-k /path/to/krb5.conf]
- [--keytab=/path/to/keytab|-K /path/to/keytab] {keyid}
+ [--keytab=/path/to/keytab|-K /path/to/keytab] [--expire|-e nsecs] {keyid}
***********
DESCRIPTION
@@ -85,6 +85,9 @@ OPTIONS
user. Set this option if you want cifs.upcall to use the older uid=
parameter instead of the creduid= parameter.
+--expire|-e
+ Override default timeout value (600 seconds) for ``dns_resolver`` key.
+
--version|-v
Print version number and exit.
--
2.20.1

3
cifs-utils-6.8.tar.bz2
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24
cifs-utils.changes
View File

@ -1,3 +1,27 @@
-------------------------------------------------------------------
Wed Apr 10 11:07:07 UTC 2019 - Aurelien Aptel <aaptel@suse.com>
- Update to cifs-utils 6.9; (bsc#1132087).
* adds fixes for Azure
* new smbinfo utility
* remove cifs-utils-6.8.tar.bz2
* remove cifs-utils-6.8.tar.bz2.asc
* add cifs-utils-6.9.tar.bz2
* add cifs-utils-6.9.tar.bz2.asc
- Remove backports that are already in 6.9; (fate#325270); (bsc#1130528);
* remove 0001-docs-cleanup-rst-formating.patch
* remove 0002-mount.cifs.rst-document-new-no-handlecache-mount-opt.patch
* remove 0003-manpage-update-mount.cifs-manpage-with-info-about-rd.patch
* remove 0004-checkopts-add-python-script-to-cross-check-mount-opt.patch
* remove 0005-mount.cifs.rst-document-missing-options-correct-wron.patch
* remove 0006-cifs-utils-support-rst2man-3.patch
* remove 0007-checkopts-report-duplicated-options-in-man-page.patch
* remove 0008-mount.cifs.rst-more-cleanups.patch
* remove 0009-mount.cifs.rst-document-vers-3-mount-option.patch
* remove 0010-mount.cifs.rst-document-vers-3.02-mount-option.patch
* remove allow-dns-resolver-key-to-expire.patch
* remove suse-document-new-vers-default-SMB2.1.patch
-------------------------------------------------------------------
Tue Mar 12 13:39:46 UTC 2019 - palcantara@suse.de

33
cifs-utils.spec
View File

@ -12,12 +12,12 @@
# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.
# Please submit bugfixes or comments via https://bugs.opensuse.org/
# Please submit bugfixes or comments via http://bugs.opensuse.org/
#
Name: cifs-utils
Version: 6.8
Version: 6.9
Release: 0
Summary: Utilities for doing and managing mounts of the Linux CIFS filesystem
License: GPL-3.0-or-later
@ -32,19 +32,6 @@ Source6: cifs-utils.keyring
Source100: README.cifstab.migration
Source1: cifs.init
Patch0: 0001-docs-cleanup-rst-formating.patch
Patch1: 0002-mount.cifs.rst-document-new-no-handlecache-mount-opt.patch
Patch2: 0003-manpage-update-mount.cifs-manpage-with-info-about-rd.patch
Patch3: 0004-checkopts-add-python-script-to-cross-check-mount-opt.patch
Patch4: 0005-mount.cifs.rst-document-missing-options-correct-wron.patch
Patch5: 0006-cifs-utils-support-rst2man-3.patch
Patch6: 0007-checkopts-report-duplicated-options-in-man-page.patch
Patch7: 0008-mount.cifs.rst-more-cleanups.patch
Patch8: 0009-mount.cifs.rst-document-vers-3-mount-option.patch
Patch9: 0010-mount.cifs.rst-document-vers-3.02-mount-option.patch
Patch10: suse-document-new-vers-default-SMB2.1.patch
Patch11: allow-dns-resolver-key-to-expire.patch
# cifs-utils 6.8 switched to python for man page generation
# we need to require either py2 or py3 package
# some products do not have a py2/py3 versions
@ -101,7 +88,7 @@ the Linux CIFS filesystem.
%package devel
Summary: Files needed for building plugins for cifs-utils
Group: Development/Libraries
Group: Development/Libraries/C and C++
%description devel
The SMB/CIFS protocol is a standard file sharing protocol widely deployed
@ -125,18 +112,6 @@ provide these credentials to the kernel automatically at login.
%prep
%setup -q
cp -a ${RPM_SOURCE_DIR}/README.cifstab.migration .
%patch0 -p1
%patch1 -p1
%patch2 -p1
%patch3 -p1
%patch4 -p1
%patch5 -p1
%patch6 -p1
%patch7 -p1
%patch8 -p1
%patch9 -p1
%patch10 -p1
%patch11 -p1
%build
export CFLAGS="%{optflags} -D_GNU_SOURCE -fpie"
@ -187,7 +162,9 @@ touch %{buildroot}/%{_sysconfdir}/sysconfig/network/if-{down,up}.d/${script} \
%{_mandir}/man8/cifs.idmap.8%{ext_man}
%{_bindir}/cifscreds
%{_sbindir}/cifs.upcall
%{_bindir}/smbinfo
%{_mandir}/man1/cifscreds.1%{ext_man}
%{_mandir}/man1/smbinfo.1%{ext_man}
%{_mandir}/man8/cifs.upcall.8%{ext_man}
%{_mandir}/man8/mount.cifs.8%{ext_man}
%dir %{_sysconfdir}/request-key.d

37
suse-document-new-vers-default-SMB2.1.patch
View File

@ -1,37 +0,0 @@
Index: cifs-utils-6.8/mount.cifs.c
===================================================================
--- cifs-utils-6.8.orig/mount.cifs.c
+++ cifs-utils-6.8/mount.cifs.c
@@ -2099,6 +2099,10 @@ mount_retry:
switch (errno) {
case ECONNREFUSED:
case EHOSTUNREACH:
+ if (currentaddress) {
+ fprintf(stderr, "mount error(%d): could not connect to %s",
+ errno, currentaddress);
+ }
currentaddress = nextaddress;
if (currentaddress) {
nextaddress = strchr(currentaddress, ',');
@@ -2110,6 +2114,12 @@ mount_retry:
fprintf(stderr,
"mount error: %s filesystem not supported by the system\n", cifs_fstype);
break;
+ case EHOSTDOWN:
+ fprintf(stderr,
+ "mount error: Server abruptly closed the connection.\n"
+ "This can happen if the server does not support the SMB version you are trying to use.\n"
+ "The default SMB version recently changed from SMB1 to SMB2.1 and above. Try mounting with vers=1.0.\n");
+ break;
case ENXIO:
if (!already_uppercased &&
uppercase_string(parsed_info->host) &&
@@ -2126,7 +2136,7 @@ mount_retry:
strerror(errno));
fprintf(stderr,
"Refer to the %s(8) manual page (e.g. man "
- "%s)\n", thisprogram, thisprogram);
+ "%s) and kernel log messages (dmesg)\n", thisprogram, thisprogram);
rc = EX_FAIL;
goto mount_exit;
}