The branch, master has been updated
via 3f1c958f6fa s3:modules: Fix virusfilter_vfs_openat
via a25c714c34d s3:selftest: Add test for virus scanner
via 547b4c595a8 selftest: Fix trailing whitespace in Samba3.pm
via 2fd518e5cc6 docs-xml:manpages: Document 'dummy' virusfilter and
'virusfilter:infected files'
via 9f34babec7c s3:modules: Implement dummy virus scanner that uses
filename matching
via 9693f7ea738 selftest: Do not force -d0 for smbd/nmbd/winbindd
from 434e6d4b4b4 smbd: Only file_free() a self-created fsp in
create_file_unixpath()
https://git.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 3f1c958f6fa9d2991185f4e281a377a295d09f9c
Author: Pavel Filipenský <pfili...@redhat.com>
Date: Mon Feb 7 23:06:10 2022 +0100
s3:modules: Fix virusfilter_vfs_openat
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14971
Signed-off-by: Pavel Filipenský <pfili...@redhat.com>
Pair-Programmed-With: Andreas Schneider <a...@samba.org>
Reviewed-by: Jeremy Allison <j...@samba.org>
Reviewed-by: Andreas Schneider <a...@samba.org>
Autobuild-User(master): Jeremy Allison <j...@samba.org>
Autobuild-Date(master): Thu Feb 10 22:09:06 UTC 2022 on sn-devel-184
commit a25c714c34d3e00e0f3c29d2acfa98cf9cdbc544
Author: Pavel Filipenský <pfili...@redhat.com>
Date: Tue Feb 8 15:35:48 2022 +0100
s3:selftest: Add test for virus scanner
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14971
Signed-off-by: Pavel Filipenský <pfili...@redhat.com>
Pair-Programmed-With: Andreas Schneider <a...@samba.org>
Reviewed-by: Jeremy Allison <j...@samba.org>
Reviewed-by: Andreas Schneider <a...@samba.org>
commit 547b4c595a8513a4be99177edbaa39ce43840f7a
Author: Pavel Filipenský <pfili...@redhat.com>
Date: Tue Feb 8 15:34:56 2022 +0100
selftest: Fix trailing whitespace in Samba3.pm
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14971
Signed-off-by: Pavel Filipenský <pfili...@redhat.com>
Reviewed-by: Jeremy Allison <j...@samba.org>
Reviewed-by: Andreas Schneider <a...@samba.org>
commit 2fd518e5cc63221c162c9b3f8526b9b7c9e34969
Author: Pavel Filipenský <pfili...@redhat.com>
Date: Tue Feb 8 22:35:29 2022 +0100
docs-xml:manpages: Document 'dummy' virusfilter and 'virusfilter:infected
files'
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14971
Signed-off-by: Pavel Filipenský <pfili...@redhat.com>
Reviewed-by: Jeremy Allison <j...@samba.org>
Reviewed-by: Andreas Schneider <a...@samba.org>
commit 9f34babec7c6aca3d91f226705d3b3996792e5f1
Author: Pavel Filipenský <pfili...@redhat.com>
Date: Tue Feb 8 12:07:03 2022 +0100
s3:modules: Implement dummy virus scanner that uses filename matching
Bug: https://bugzilla.samba.org/show_bug.cgi?id=14971
Signed-off-by: Pavel Filipenský <pfili...@redhat.com>
Reviewed-by: Jeremy Allison <j...@samba.org>
Reviewed-by: Andreas Schneider <a...@samba.org>
commit 9693f7ea7383c6a51ab58b7c8255b30206f18a3b
Author: Andreas Schneider <a...@samba.org>
Date: Wed Feb 9 16:33:10 2022 +0100
selftest: Do not force -d0 for smbd/nmbd/winbindd
We have the env variable SERVER_LOG_LEVEL which allows you to change
the log level on the command line. If we force -d0 this will not work.
make test TESTS="samba" SERVER_LOG_LEVEL=10
Signed-off-by: Andreas Schneider <a...@samba.org>
Reviewed-by: Jeremy Allison <j...@samba.org>
-----------------------------------------------------------------------
Summary of changes:
docs-xml/manpages/vfs_virusfilter.8.xml | 12 +++
selftest/target/Samba3.pm | 20 ++++-
source3/modules/vfs_virusfilter.c | 18 ++++-
source3/modules/vfs_virusfilter_common.h | 4 +
source3/modules/vfs_virusfilter_dummy.c | 58 ++++++++++++++
source3/modules/wscript_build | 1 +
source3/script/tests/test_virus_scanner.sh | 124 +++++++++++++++++++++++++++++
source3/selftest/tests.py | 9 +++
8 files changed, 239 insertions(+), 7 deletions(-)
create mode 100644 source3/modules/vfs_virusfilter_dummy.c
create mode 100755 source3/script/tests/test_virus_scanner.sh
Changeset truncated at 500 lines:
diff --git a/docs-xml/manpages/vfs_virusfilter.8.xml
b/docs-xml/manpages/vfs_virusfilter.8.xml
index 329a35af68a..88f91d73a42 100644
--- a/docs-xml/manpages/vfs_virusfilter.8.xml
+++ b/docs-xml/manpages/vfs_virusfilter.8.xml
@@ -48,6 +48,10 @@
scanner</para></listitem>
<listitem><para><emphasis>clamav</emphasis>, the ClamAV
scanner</para></listitem>
+ <listitem><para><emphasis>dummy</emphasis>, dummy scanner
used in
+ tests. Checks against the <emphasis>infected files</emphasis>
+ parameter and flags any name that matches as infected.
+ </para></listitem>
</itemizedlist>
</listitem>
</varlistentry>
@@ -264,6 +268,14 @@
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>virusfilter:infected files = empty</term>
+ <listitem>
+ <para>Files that virusfilter <emphasis>dummy</emphasis> flags
as infected.</para>
+ <para>If this option is not set, the default is empty.</para>
+ </listitem>
+ </varlistentry>
+
<varlistentry>
<term>virusfilter:block access on error = false</term>
<listitem>
diff --git a/selftest/target/Samba3.pm b/selftest/target/Samba3.pm
index 7bb007c959d..2cc2d13d9e0 100755
--- a/selftest/target/Samba3.pm
+++ b/selftest/target/Samba3.pm
@@ -199,7 +199,7 @@ sub getlog_env_app($$$)
close(LOG);
return "" if $out eq $title;
-
+
return $out;
}
@@ -1694,6 +1694,9 @@ sub setup_fileserver
my $veto_sharedir="$share_dir/veto";
push(@dirs,$veto_sharedir);
+ my $virusfilter_sharedir="$share_dir/virusfilter";
+ push(@dirs,$virusfilter_sharedir);
+
my $ip4 = Samba::get_ipv4_addr("FILESERVER");
my $fileserver_options = "
kernel change notify = yes
@@ -1818,6 +1821,15 @@ sub setup_fileserver
path = $veto_sharedir
delete veto files = yes
+[virusfilter]
+ path = $virusfilter_sharedir
+ vfs objects = acl_xattr virusfilter
+ virusfilter:scanner = dummy
+ virusfilter:min file size = 0
+ virusfilter:infected files = *infected*
+ virusfilter:infected file action = rename
+ virusfilter:scan on close = yes
+
[homes]
comment = Home directories
browseable = No
@@ -2158,7 +2170,7 @@ sub make_bin_cmd
{
my ($self, $binary, $env_vars, $options, $valgrind, $dont_log_stdout) =
@_;
- my @optargs = ("-d0");
+ my @optargs = ();
if (defined($options)) {
@optargs = split(/ /, $options);
}
@@ -2467,7 +2479,7 @@ sub provision($$)
my $nmbdsockdir="$prefix_abs/nmbd";
unlink($nmbdsockdir);
- ##
+ ##
## create the test directory layout
##
die ("prefix_abs = ''") if $prefix_abs eq "";
@@ -3331,7 +3343,7 @@ sub provision($$)
unless (open(PASSWD, ">$nss_wrapper_passwd")) {
warn("Unable to open $nss_wrapper_passwd");
return undef;
- }
+ }
print PASSWD "nobody:x:$uid_nobody:$gid_nobody:nobody
gecos:$prefix_abs:/bin/false
$unix_name:x:$unix_uid:$unix_gids[0]:$unix_name gecos:$prefix_abs:/bin/false
pdbtest:x:$uid_pdbtest:$gid_nogroup:pdbtest gecos:$prefix_abs:/bin/false
diff --git a/source3/modules/vfs_virusfilter.c
b/source3/modules/vfs_virusfilter.c
index 9fafe4e5d41..d1554967ad1 100644
--- a/source3/modules/vfs_virusfilter.c
+++ b/source3/modules/vfs_virusfilter.c
@@ -35,12 +35,14 @@
enum virusfilter_scanner_enum {
VIRUSFILTER_SCANNER_CLAMAV,
+ VIRUSFILTER_SCANNER_DUMMY,
VIRUSFILTER_SCANNER_FSAV,
VIRUSFILTER_SCANNER_SOPHOS
};
static const struct enum_list scanner_list[] = {
{ VIRUSFILTER_SCANNER_CLAMAV, "clamav" },
+ { VIRUSFILTER_SCANNER_DUMMY, "dummy" },
{ VIRUSFILTER_SCANNER_FSAV, "fsav" },
{ VIRUSFILTER_SCANNER_SOPHOS, "sophos" },
{ -1, NULL }
@@ -199,6 +201,7 @@ static int virusfilter_vfs_connect(
int snum = SNUM(handle->conn);
struct virusfilter_config *config = NULL;
const char *exclude_files = NULL;
+ const char *infected_files = NULL;
const char *temp_quarantine_dir_mode = NULL;
const char *infected_file_command = NULL;
const char *scan_error_command = NULL;
@@ -255,6 +258,12 @@ static int virusfilter_vfs_connect(
set_namearray(&config->exclude_files, exclude_files);
}
+ infected_files = lp_parm_const_string(
+ snum, "virusfilter", "infected files", NULL);
+ if (infected_files != NULL) {
+ set_namearray(&config->infected_files, infected_files);
+ }
+
config->cache_entry_limit = lp_parm_int(
snum, "virusfilter", "cache entry limit", 100);
@@ -537,6 +546,9 @@ static int virusfilter_vfs_connect(
case VIRUSFILTER_SCANNER_CLAMAV:
ret = virusfilter_clamav_init(config);
break;
+ case VIRUSFILTER_SCANNER_DUMMY:
+ ret = virusfilter_dummy_init(config);
+ break;
default:
DBG_ERR("Unhandled scanner %d\n", backend);
return -1;
@@ -1297,21 +1309,21 @@ static int virusfilter_vfs_openat(struct
vfs_handle_struct *handle,
*/
goto virusfilter_vfs_open_next;
}
- ret = S_ISREG(smb_fname->st.st_ex_mode);
+ ret = S_ISREG(sbuf.st_ex_mode);
if (ret == 0) {
DBG_INFO("Not scanned: Directory or special file: %s/%s\n",
cwd_fname, fname);
goto virusfilter_vfs_open_next;
}
if (config->max_file_size > 0 &&
- smb_fname->st.st_ex_size > config->max_file_size)
+ sbuf.st_ex_size > config->max_file_size)
{
DBG_INFO("Not scanned: file size > max file size: %s/%s\n",
cwd_fname, fname);
goto virusfilter_vfs_open_next;
}
if (config->min_file_size > 0 &&
- smb_fname->st.st_ex_size < config->min_file_size)
+ sbuf.st_ex_size < config->min_file_size)
{
DBG_INFO("Not scanned: file size < min file size: %s/%s\n",
cwd_fname, fname);
diff --git a/source3/modules/vfs_virusfilter_common.h
b/source3/modules/vfs_virusfilter_common.h
index f71b0b949a7..463a9d74e9c 100644
--- a/source3/modules/vfs_virusfilter_common.h
+++ b/source3/modules/vfs_virusfilter_common.h
@@ -83,6 +83,9 @@ struct virusfilter_config {
/* Exclude files */
name_compare_entry *exclude_files;
+ /* Infected files */
+ name_compare_entry *infected_files;
+
/* Scan result cache */
struct virusfilter_cache *cache;
int cache_entry_limit;
@@ -149,5 +152,6 @@ struct virusfilter_backend {
int virusfilter_sophos_init(struct virusfilter_config *config);
int virusfilter_fsav_init(struct virusfilter_config *config);
int virusfilter_clamav_init(struct virusfilter_config *config);
+int virusfilter_dummy_init(struct virusfilter_config *config);
#endif /* _VIRUSFILTER_COMMON_H */
diff --git a/source3/modules/vfs_virusfilter_dummy.c
b/source3/modules/vfs_virusfilter_dummy.c
new file mode 100644
index 00000000000..03405cd6629
--- /dev/null
+++ b/source3/modules/vfs_virusfilter_dummy.c
@@ -0,0 +1,58 @@
+/*
+ Samba-VirusFilter VFS modules
+ Dummy scanner with infected files support.
+ Copyright (C) 2022 Pavel Filipenský <pfili...@redhat.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/>.
+*/
+
+#include "modules/vfs_virusfilter_utils.h"
+
+static virusfilter_result virusfilter_dummy_scan(
+ struct vfs_handle_struct *handle,
+ struct virusfilter_config *config,
+ const struct files_struct *fsp,
+ char **reportp)
+{
+ bool ok;
+
+ DBG_INFO("Scanning file: %s\n", fsp_str_dbg(fsp));
+ ok = is_in_path(fsp->fsp_name->base_name,
+ config->infected_files,
+ false);
+ return ok ? VIRUSFILTER_RESULT_INFECTED : VIRUSFILTER_RESULT_CLEAN;
+}
+
+static struct virusfilter_backend_fns virusfilter_backend_dummy = {
+ .connect = NULL,
+ .disconnect = NULL,
+ .scan_init = NULL,
+ .scan = virusfilter_dummy_scan,
+ .scan_end = NULL,
+};
+
+int virusfilter_dummy_init(struct virusfilter_config *config)
+{
+ struct virusfilter_backend *backend = NULL;
+
+ backend = talloc_zero(config, struct virusfilter_backend);
+ if (backend == NULL) {
+ return -1;
+ }
+
+ backend->fns = &virusfilter_backend_dummy;
+ backend->name = "dummy";
+ config->backend = backend;
+ return 0;
+}
diff --git a/source3/modules/wscript_build b/source3/modules/wscript_build
index 40df4539392..ff318c3fa06 100644
--- a/source3/modules/wscript_build
+++ b/source3/modules/wscript_build
@@ -591,6 +591,7 @@ bld.SAMBA3_MODULE('vfs_virusfilter',
vfs_virusfilter_sophos.c
vfs_virusfilter_fsav.c
vfs_virusfilter_clamav.c
+ vfs_virusfilter_dummy.c
''',
deps='samba-util VFS_VIRUSFILTER_UTILS',
init_function='',
diff --git a/source3/script/tests/test_virus_scanner.sh
b/source3/script/tests/test_virus_scanner.sh
new file mode 100755
index 00000000000..2234ea6ca89
--- /dev/null
+++ b/source3/script/tests/test_virus_scanner.sh
@@ -0,0 +1,124 @@
+#!/bin/sh
+# Copyright (c) 2022 Pavel Filipenský <pfili...@redhat.com>
+# shellcheck disable=1091
+
+if [ $# -lt 4 ]; then
+cat <<EOF
+Usage: $0 SERVER_IP SHARE LOCAL_PATH SMBCLIENT
+EOF
+exit 1;
+fi
+
+SERVER_IP=${1}
+SHARE=${2}
+LOCAL_PATH=${3}
+SMBCLIENT=${4}
+
+SMBCLIENT="${VALGRIND} ${SMBCLIENT}"
+
+failed=0
+sharedir="${LOCAL_PATH}/${SHARE}"
+
+incdir="$(dirname "$0")/../../../testprogs/blackbox"
+. "${incdir}/subunit.sh"
+
+check_infected_read()
+{
+ rm -rf "${sharedir:?}"/*
+
+ if ! touch "${sharedir}/infected.txt"; then
+ echo "ERROR: Cannot create ${sharedir}/infected.txt"
+ return 1
+ fi
+
+ ${SMBCLIENT} "//${SERVER_IP}/${SHARE}" -U"${USER}"%"${PASSWORD}" -c "get
infected.txt ${sharedir}/infected.download.txt"
+
+ # check that virusfilter:rename prefix/suffix was added
+ if [ ! -f "${sharedir}/virusfilter.infected.txt.infected" ]; then
+ echo "ERROR: ${sharedir}/virusfilter.infected.txt.infected is missing."
+ return 1
+ fi
+
+ # check that file was not downloaded
+ if [ -f "${sharedir}/infected.download.txt" ]; then
+ echo "ERROR: {sharedir}/infected.download.txt should not exist."
+ return 1
+ fi
+
+ return 0
+}
+
+check_infected_write()
+{
+ rm -rf "${sharedir:?}"/*
+ smbfile=infected.upload.txt
+ smbfilerenamed="virusfilter.${smbfile}.infected"
+
+ # non empty file is needed
+ # vsf_virusfilter performs a scan only if fsp->fsp_flags.modified
+ if ! echo "Hello Virus!" > "${sharedir}/infected.txt"; then
+ echo "ERROR: Cannot create ${sharedir}/infected.txt"
+ return 1
+ fi
+
+ ${SMBCLIENT} "//${SERVER_IP}/${SHARE}" -U"${USER}"%"${PASSWORD}" -c "put
${sharedir}/infected.txt ${smbfile}"
+
+ # check that virusfilter:rename prefix/suffix was added
+ if [ ! -f "${sharedir}/${smbfilerenamed}" ]; then
+ echo "ERROR: ${sharedir}/${smbfilerenamed} is missing."
+ return 1
+ fi
+
+ # check that file was not uploaded
+ if [ -f "${sharedir}/infected.upload.txt" ]; then
+ echo "ERROR: {sharedir}/${smbfile} should not exist."
+ return 1
+ fi
+
+ return 0
+}
+
+check_healthy_read()
+{
+ rm -rf "${sharedir:?}"/*
+
+ if ! echo "Hello Samba!" > "${sharedir}/healthy.txt"; then
+ echo "ERROR: Cannot create ${sharedir}/healthy.txt"
+ return 1
+ fi
+
+ ${SMBCLIENT} //"${SERVER_IP}"/"${SHARE}" -U"${USER}"%"${PASSWORD}" -c "get
healthy.txt ${sharedir}/healthy.download.txt"
+
+ if ! cmp "${sharedir}/healthy.txt" "${sharedir}/healthy.download.txt"; then
+ echo "ERROR: cmp ${sharedir}/healthy.txt
${sharedir}/healthy.download.txt FAILED"
+ return 1
+ fi
+
+ return 0
+}
+
+check_healthy_write()
+{
+ rm -rf "${sharedir:?}"/*
+
+ if ! echo "Hello Samba!" > "${sharedir}/healthy.txt"; then
+ echo "ERROR: Cannot create ${sharedir}/healthy.txt"
+ return 1
+ fi
+
+ ${SMBCLIENT} //"${SERVER_IP}"/"${SHARE}" -U"${USER}"%"${PASSWORD}" -c "put
${sharedir}/healthy.txt healthy.upload.txt"
+
+ if ! cmp "${sharedir}/healthy.txt" "${sharedir}/healthy.upload.txt"; then
+ echo "ERROR: cmp ${sharedir}/healthy.txt
${sharedir}/healthy.upload.txt FAILED"
+ return 1
+ fi
+
+ return 0
+}
+
+testit "check_infected_read" check_infected_read || failed=$((failed + 1))
+testit "check_infected_write" check_infected_write || failed=$((failed + 1))
+testit "check_healthy_read" check_healthy_read || failed=$((failed + 1))
+testit "check_healthy_write" check_healthy_write || failed=$((failed + 1))
+
+testok "$0" "$failed"
diff --git a/source3/selftest/tests.py b/source3/selftest/tests.py
index cab64969491..95192ae19ae 100755
--- a/source3/selftest/tests.py
+++ b/source3/selftest/tests.py
@@ -1256,6 +1256,15 @@ plantestsuite("samba3.blackbox.smbXsrv_client_dead_rec",
"fileserver:local",
'$SERVER_IP',
"tmp"])
+env = 'fileserver'
+plantestsuite("samba3.blackbox.virus_scanner", "%s:local" % (env),
+ [os.path.join(samba3srcdir,
+ "script/tests/test_virus_scanner.sh"),
+ '$SERVER_IP',
+ "virusfilter",
+ '$LOCAL_PATH',
+ smbclient3])
+
for env in ['fileserver', 'simpleserver']:
plantestsuite("samba3.blackbox.smbclient.encryption", env,
[os.path.join(samba3srcdir,
"script/tests/test_smbclient_encryption.sh"),
--
Samba Shared Repository
