[SCM] Samba Shared Repository - branch master updated
Jeremy Allison
jra at samba.org
Thu Nov 4 19:50:01 UTC 2021
The branch, master has been updated
via 8082e2eb7e3 lib/dbwrap: reset deleted record to tdb_null
via 1fa006f1f71 CI: add a test for bug 14882
via c1470b120bb s3/libsmb: check for global parametric option "libsmb:client_guid"
from 141f3f5f9a5 s3: smbd: Ensure in the directory scanning loops inside rmdir_internals() we don't overwrite the 'ret' variable.
https://git.samba.org/?p=samba.git;a=shortlog;h=master
- Log -----------------------------------------------------------------
commit 8082e2eb7e33c0993135791c03823886f5aa8496
Author: Ralph Boehme <slow at samba.org>
Date: Fri Oct 29 22:03:42 2021 +0200
lib/dbwrap: reset deleted record to tdb_null
This allows the calling the following sequence of dbwrap functions:
dbwrap_delete_record(rec);
data = dbwrap_record_get_value(rec);
without triggering the assert rec->value_valid inside dbwrap_record_get_value().
Note that dbwrap_record_storev() continues to invalidate the record, so this
change somewhat blurs our semantics.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14882
Signed-off-by: Ralph Boehme <slow at samba.org>
Reviewed-by: Volker Lendecke <vl at samba.org>
Autobuild-User(master): Jeremy Allison <jra at samba.org>
Autobuild-Date(master): Thu Nov 4 19:49:47 UTC 2021 on sn-devel-184
commit 1fa006f1f71cce03d92e76efda3ff055aae4eb91
Author: Ralph Boehme <slow at samba.org>
Date: Fri Oct 29 06:27:38 2021 +0200
CI: add a test for bug 14882
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14882
Signed-off-by: Ralph Boehme <slow at samba.org>
Reviewed-by: Jeremy Allison <jra at samba.org>
commit c1470b120bb75ea73ba90dc83ab7efcbb733b1a7
Author: Stefan Metzmacher <metze at samba.org>
Date: Mon Oct 5 08:52:32 2020 +0200
s3/libsmb: check for global parametric option "libsmb:client_guid"
Useful in test.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14882
Signed-off-by: Stefan Metzmacher <metze at samba.org>
Reviewed-by: Ralph Boehme <slow at samba.org>
-----------------------------------------------------------------------
Summary of changes:
lib/dbwrap/dbwrap.c | 9 +--
source3/libsmb/clientgen.c | 9 ++-
.../script/tests/test_smbXsrv_client_dead_rec.sh | 76 ++++++++++++++++++++++
source3/selftest/tests.py | 7 ++
4 files changed, 94 insertions(+), 7 deletions(-)
create mode 100755 source3/script/tests/test_smbXsrv_client_dead_rec.sh
Changeset truncated at 500 lines:
diff --git a/lib/dbwrap/dbwrap.c b/lib/dbwrap/dbwrap.c
index cc685a2fa69..7555efaa3ab 100644
--- a/lib/dbwrap/dbwrap.c
+++ b/lib/dbwrap/dbwrap.c
@@ -110,16 +110,13 @@ NTSTATUS dbwrap_record_delete(struct db_record *rec)
{
NTSTATUS status;
- /*
- * Invalidate before rec->delete_rec() is called, give
- * rec->delete_rec() the chance to re-validate rec->value.
- */
- rec->value_valid = false;
-
status = rec->delete_rec(rec);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
+
+ rec->value = tdb_null;
+
return NT_STATUS_OK;
}
diff --git a/source3/libsmb/clientgen.c b/source3/libsmb/clientgen.c
index a5929ecc7df..5f0b9daf333 100644
--- a/source3/libsmb/clientgen.c
+++ b/source3/libsmb/clientgen.c
@@ -79,7 +79,14 @@ struct cli_state *cli_state_create(TALLOC_CTX *mem_ctx,
if (!GUID_all_zero(&cli_state_client_guid)) {
client_guid = cli_state_client_guid;
} else {
- client_guid = GUID_random();
+ const char *str = NULL;
+
+ str = lp_parm_const_string(-1, "libsmb", "client_guid", NULL);
+ if (str != NULL) {
+ GUID_from_string(str, &client_guid);
+ } else {
+ client_guid = GUID_random();
+ }
}
/* Check the effective uid - make sure we are not setuid */
diff --git a/source3/script/tests/test_smbXsrv_client_dead_rec.sh b/source3/script/tests/test_smbXsrv_client_dead_rec.sh
new file mode 100755
index 00000000000..0ed10e78a7a
--- /dev/null
+++ b/source3/script/tests/test_smbXsrv_client_dead_rec.sh
@@ -0,0 +1,76 @@
+#!/bin/bash
+#
+# Test smbd doesn't crash if there an existing dead record for a client with a
+# specific client-guid in smbXsrv_client_global.tdb
+#
+
+if [ $# -lt 2 ]; then
+ echo Usage: test_smbXsrv_client_dead_rec.sh SERVERCONFFILE IP SHARENAME
+ exit 1
+fi
+
+CONF=$1
+SERVER=$2
+SHARE=$3
+
+SMBCLIENT="$BINDIR/smbclient"
+SMBSTATUS="$BINDIR/smbstatus"
+
+SMBD_LOG_FILE="$SMBD_TEST_LOG"
+if [ -n "$SMBD_DONT_LOG_STDOUT" ]; then
+ SMBD_LOG_FILE=$(dirname "$SMBD_TEST_LOG")/logs/log.smbd
+fi
+SMBD_LOG_FILE=$(realpath "$SMBD_LOG_FILE")
+
+incdir=$(dirname "$0")/../../../testprogs/blackbox
+. "$incdir"/subunit.sh
+
+failed=0
+
+cd "$SELFTEST_TMPDIR" || exit 1
+
+#
+# Note if we already have any panics in the smbd log.
+#
+panic_count_0=$(grep -c PANIC "$SMBD_LOG_FILE")
+
+# Create the smbclient communication pipes.
+rm -f smbclient-stdin smbclient-stdout smbclient-stderr
+mkfifo smbclient-stdin smbclient-stdout smbclient-stderr
+
+CLI_FORCE_INTERACTIVE=1; export CLI_FORCE_INTERACTIVE
+
+# Connect a first time
+${SMBCLIENT} //"${SERVER}"/"${SHARE}" -U"${USER}"%"${PASSWORD}" \
+ --option="libsmb:client_guid=6112f7d3-9528-4a2a-8861-0ca129aae6c4" \
+ < smbclient-stdin > smbclient-stdout 2>smbclient-stderr &
+CLIENT_PID=$!
+
+exec 100>smbclient-stdin 101<smbclient-stdout 102<smbclient-stderr
+
+export UID_WRAPPER_ROOT=1
+SMBD_PID=$(UID_WRAPPER_INITIAL_RUID=0 UID_WRAPPER_INITIAL_EUID=0 "$SMBSTATUS" -p "$CONF" | awk '/^[0-9]+/ {print $1}' | sort -u)
+
+# Kill the first connection, leaves dead record in smbXsrv_client_global.tdb
+kill -KILL "$SMBD_PID"
+kill $CLIENT_PID
+
+# Connect a second time
+unset CLI_FORCE_INTERACTIVE
+${SMBCLIENT} //"${SERVER}"/"${SHARE}" -U"${USER}"%"${PASSWORD}" \
+ --option="libsmb:client_guid=6112f7d3-9528-4a2a-8861-0ca129aae6c4" \
+ -c exit
+
+rm -f smbclient-stdin smbclient-stdout aio_outstanding_testfile
+
+#
+# Ensure the panic count didn't change.
+#
+# BUG: https://bugzilla.samba.org/show_bug.cgi?id=14882
+#
+panic_count_1=$(grep -c PANIC "$SMBD_LOG_FILE")
+
+testit "check_panic" test "$panic_count_0" -eq "$panic_count_1" ||
+ failed=$(expr $failed + 1)
+
+testok "$0" "$failed"
diff --git a/source3/selftest/tests.py b/source3/selftest/tests.py
index 41ed728a03e..bb47851bbc6 100755
--- a/source3/selftest/tests.py
+++ b/source3/selftest/tests.py
@@ -1193,6 +1193,13 @@ plantestsuite("samba3.blackbox.smbclient.encryption_off", "simpleserver",
"$USERNAME", "$PASSWORD", "$SERVER",
smbclient3])
+plantestsuite("samba3.blackbox.smbXsrv_client_dead_rec", "fileserver:local",
+ [os.path.join(samba3srcdir,
+ "script/tests/test_smbXsrv_client_dead_rec.sh"),
+ configuration,
+ '$SERVER_IP',
+ "tmp"])
+
for env in ['fileserver', 'simpleserver']:
plantestsuite("samba3.blackbox.smbclient.encryption", env,
[os.path.join(samba3srcdir, "script/tests/test_smbclient_encryption.sh"),
--
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