utils: Move conn_tdb.c to utils/

That's a wrapper that only smbstatus and net status use by now.

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): Fri Apr 12 00:37:05 UTC 2019 on sn-devel-144

5 files changed, 227 insertions, 2 deletions

diff --git a/source3/utils/conn_tdb.c b/source3/utils/conn_tdb.c
new file mode 100644
index 00000000000..2d8d2d9e042
--- /dev/null
+++ b/source3/utils/conn_tdb.c
@@ -0,0 +1,173 @@
+/*
+   Unix SMB/CIFS implementation.
+   Low-level connections.tdb access functions
+   Copyright (C) Volker Lendecke 2007
+
+   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 "includes.h"
+#include "system/filesys.h"
+#include "smbd/globals.h"
+#include "dbwrap/dbwrap.h"
+#include "dbwrap/dbwrap_open.h"
+#include "dbwrap/dbwrap_rbt.h"
+#include "messages.h"
+#include "conn_tdb.h"
+#include "util_tdb.h"
+
+struct connections_forall_state {
+	struct db_context *session_by_pid;
+	int (*fn)(const struct connections_key *key,
+		  const struct connections_data *data,
+		  void *private_data);
+	void *private_data;
+	int count;
+};
+
+struct connections_forall_session {
+	uid_t uid;
+	gid_t gid;
+	fstring machine;
+	fstring addr;
+	uint16_t cipher;
+	uint16_t dialect;
+	uint8_t signing_flags;
+};
+
+static int collect_sessions_fn(struct smbXsrv_session_global0 *global,
+			       void *connections_forall_state)
+{
+	NTSTATUS status;
+	struct connections_forall_state *state =
+		(struct connections_forall_state*)connections_forall_state;
+
+	uint32_t id = global->session_global_id;
+	struct connections_forall_session sess;
+
+	if (global->auth_session_info == NULL) {
+		sess.uid = -1;
+		sess.gid = -1;
+	} else {
+		sess.uid = global->auth_session_info->unix_token->uid;
+		sess.gid = global->auth_session_info->unix_token->gid;
+	}
+	fstrcpy(sess.machine, global->channels[0].remote_name);
+	fstrcpy(sess.addr, global->channels[0].remote_address);
+	sess.cipher = global->channels[0].encryption_cipher;
+	sess.dialect = global->connection_dialect;
+	sess.signing_flags = global->signing_flags;
+
+	status = dbwrap_store(state->session_by_pid,
+			      make_tdb_data((void*)&id, sizeof(id)),
+			      make_tdb_data((void*)&sess, sizeof(sess)),
+			      TDB_INSERT);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0, ("Failed to store record: %s\n", nt_errstr(status)));
+	}
+	return 0;
+}
+
+static int traverse_tcon_fn(struct smbXsrv_tcon_global0 *global,
+			    void *connections_forall_state)
+{
+	NTSTATUS status;
+	struct connections_forall_state *state =
+		(struct connections_forall_state*)connections_forall_state;
+
+	struct connections_key key;
+	struct connections_data data;
+
+	uint32_t sess_id = global->session_global_id;
+	struct connections_forall_session sess = {
+		.uid = -1,
+		.gid = -1,
+	};
+
+	TDB_DATA val = tdb_null;
+
+	/*
+	 * Note: that share_name is defined as array without a pointer.
+	 * that's why it's always a valid pointer here.
+	 */
+	if (strlen(global->share_name) == 0) {
+		/*
+		 * when a smbXsrv_tcon is created it's created
+		 * with emtpy share_name first in order to allocate
+		 * an id, before filling in the details.
+		 */
+		return 0;
+	}
+
+	status = dbwrap_fetch(state->session_by_pid, state,
+			      make_tdb_data((void*)&sess_id, sizeof(sess_id)),
+			      &val);
+	if (NT_STATUS_IS_OK(status)) {
+		memcpy((uint8_t *)&sess, val.dptr, val.dsize);
+	}
+
+	ZERO_STRUCT(key);
+	ZERO_STRUCT(data);
+
+	key.pid = data.pid = global->server_id;
+	key.cnum = data.cnum = global->tcon_global_id;
+	fstrcpy(key.name, global->share_name);
+	fstrcpy(data.servicename, global->share_name);
+	data.uid = sess.uid;
+	data.gid = sess.gid;
+	fstrcpy(data.addr, sess.addr);
+	fstrcpy(data.machine, sess.machine);
+	data.start = nt_time_to_unix(global->creation_time);
+	data.encryption_flags = global->encryption_flags;
+	data.cipher = sess.cipher;
+	data.dialect = sess.dialect;
+	data.signing_flags = global->signing_flags;
+
+	state->count++;
+
+	return state->fn(&key, &data, state->private_data);
+}
+
+int connections_forall_read(int (*fn)(const struct connections_key *key,
+				      const struct connections_data *data,
+				      void *private_data),
+			    void *private_data)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct connections_forall_state *state =
+		talloc_zero(talloc_tos(), struct connections_forall_state);
+	NTSTATUS status;
+	int ret = -1;
+
+	state->session_by_pid = db_open_rbt(state);
+	state->fn = fn;
+	state->private_data = private_data;
+	status = smbXsrv_session_global_traverse(collect_sessions_fn, state);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0, ("Failed to traverse sessions: %s\n",
+			  nt_errstr(status)));
+		goto done;
+	}
+
+	status = smbXsrv_tcon_global_traverse(traverse_tcon_fn, state);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(0, ("Failed to traverse tree connects: %s\n",
+			  nt_errstr(status)));
+		goto done;
+	}
+	ret = state->count;
+done:
+	talloc_free(frame);
+	return ret;
+}
diff --git a/source3/utils/conn_tdb.h b/source3/utils/conn_tdb.h
new file mode 100644
index 00000000000..34f00198c28
--- /dev/null
+++ b/source3/utils/conn_tdb.h
@@ -0,0 +1,47 @@
+/*
+   Unix SMB/CIFS implementation.
+   Low-level connections.tdb access functions
+   Copyright (C) Volker Lendecke 2007
+
+   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/>.
+*/
+
+/* key and data in the connections database - used in smbstatus and smbd */
+struct connections_key {
+	struct server_id pid;
+	int cnum;
+	fstring name;
+};
+
+struct connections_data {
+	struct server_id pid;
+	int cnum;
+	uid_t uid;
+	gid_t gid;
+	fstring servicename;
+	fstring addr;
+	fstring machine;
+	time_t start;
+	uint8_t encryption_flags;
+	uint16_t cipher;
+	uint16_t dialect;
+	uint8_t signing_flags;
+};
+
+/* The following definitions come from lib/conn_tdb.c  */
+
+int connections_forall_read(int (*fn)(const struct connections_key *key,
+				      const struct connections_data *data,
+				      void *private_data),
+			    void *private_data);
diff --git a/source3/utils/net_status.c b/source3/utils/net_status.c
index 0d658a0c36e..939c3635d54 100644
--- a/source3/utils/net_status.c
+++ b/source3/utils/net_status.c
@@ -21,7 +21,7 @@
 #include "utils/net.h"
 #include "session.h"
 #include "messages.h"
-#include "lib/conn_tdb.h"
+#include "conn_tdb.h"
 
 int net_status_usage(struct net_context *c, int argc, const char **argv)
 {
diff --git a/source3/utils/status.c b/source3/utils/status.c
index d18033778dc..71717857d13 100644
--- a/source3/utils/status.c
+++ b/source3/utils/status.c
@@ -44,7 +44,7 @@
 #include "librpc/gen_ndr/open_files.h"
 #include "smbd/smbd.h"
 #include "librpc/gen_ndr/notify.h"
-#include "lib/conn_tdb.h"
+#include "conn_tdb.h"
 #include "serverid.h"
 #include "status_profile.h"
 #include "smbd/notifyd/notifyd.h"
diff --git a/source3/utils/wscript_build b/source3/utils/wscript_build
index 414d3f91f2e..9d9aa56bf37 100644
--- a/source3/utils/wscript_build
+++ b/source3/utils/wscript_build
@@ -4,6 +4,9 @@ bld.SAMBA3_SUBSYSTEM('PASSWD_UTIL',
                     source='passwd_util.c',
                     deps='samba-util')
 
+bld.SAMBA3_SUBSYSTEM('CONN_TDB',
+                     source='conn_tdb.c')
+
 bld.SAMBA3_BINARY('profiles',
                  source='profiles.c',
                  deps='''
@@ -263,6 +266,7 @@ bld.SAMBA3_BINARY('net',
                  printing_migrate
                  trusts_util
                  IDMAP_AUTORID_TDB
+                 CONN_TDB
                  jansson
                  common_auth
                  ''')
@@ -301,4 +305,5 @@ bld.SAMBA3_BINARY('smbstatus',
                       smbd_base
                       LOCKING
                       PROFILE
+                      CONN_TDB
                       ''')