2 * Unix SMB/CIFS implementation.
4 * Copyright (C) Volker Lendecke 2015
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "smbd_cleanupd.h"
22 #include "lib/util_procid.h"
23 #include "lib/util/tevent_ntstatus.h"
24 #include "lib/util/debug.h"
25 #include "smbprofile.h"
27 #include "locking/proto.h"
29 struct smbd_cleanupd_state {
33 static void smbd_cleanupd_shutdown(struct messaging_context *msg,
34 void *private_data, uint32_t msg_type,
35 struct server_id server_id,
37 static void smbd_cleanupd_process_exited(struct messaging_context *msg,
38 void *private_data, uint32_t msg_type,
39 struct server_id server_id,
41 static void smbd_cleanupd_unlock(struct messaging_context *msg,
42 void *private_data, uint32_t msg_type,
43 struct server_id server_id,
46 struct tevent_req *smbd_cleanupd_send(TALLOC_CTX *mem_ctx,
47 struct tevent_context *ev,
48 struct messaging_context *msg,
51 struct tevent_req *req;
52 struct smbd_cleanupd_state *state;
55 req = tevent_req_create(mem_ctx, &state, struct smbd_cleanupd_state);
59 state->parent_pid = parent_pid;
61 status = messaging_register(msg, req, MSG_SHUTDOWN,
62 smbd_cleanupd_shutdown);
63 if (tevent_req_nterror(req, status)) {
64 return tevent_req_post(req, ev);
67 status = messaging_register(msg, req, MSG_SMB_NOTIFY_CLEANUP,
68 smbd_cleanupd_process_exited);
69 if (tevent_req_nterror(req, status)) {
70 return tevent_req_post(req, ev);
73 status = messaging_register(msg, NULL, MSG_SMB_UNLOCK,
74 smbd_cleanupd_unlock);
75 if (tevent_req_nterror(req, status)) {
76 return tevent_req_post(req, ev);
82 static void smbd_cleanupd_shutdown(struct messaging_context *msg,
83 void *private_data, uint32_t msg_type,
84 struct server_id server_id,
87 struct tevent_req *req = talloc_get_type_abort(
88 private_data, struct tevent_req);
92 static void smbd_cleanupd_unlock(struct messaging_context *msg,
93 void *private_data, uint32_t msg_type,
94 struct server_id server_id,
97 DBG_WARNING("Cleaning up brl and lock database after unclean "
100 message_send_all(msg, MSG_SMB_UNLOCK, NULL, 0, NULL);
102 brl_revalidate(msg, private_data, msg_type, server_id, data);
105 static void smbd_cleanupd_process_exited(struct messaging_context *msg,
106 void *private_data, uint32_t msg_type,
107 struct server_id server_id,
110 struct tevent_req *req = talloc_get_type_abort(
111 private_data, struct tevent_req);
112 struct smbd_cleanupd_state *state = tevent_req_data(
113 req, struct smbd_cleanupd_state);
115 struct server_id child_id;
116 bool unclean_shutdown;
119 if (data->length != (sizeof(pid) + sizeof(unclean_shutdown))) {
120 DBG_WARNING("Got invalid length: %zu\n", data->length);
124 memcpy(&pid, data->data, sizeof(pid));
125 memcpy(&unclean_shutdown, data->data + sizeof(pid),
126 sizeof(unclean_shutdown));
128 DBG_DEBUG("%d exited %sclean\n", (int)pid,
129 unclean_shutdown ? "un" : "");
132 * Get child_id before messaging_cleanup which wipes the
133 * unique_id. Not that it really matters here for functionality (the
134 * child should have properly cleaned up :-)) though, but it looks
137 child_id = pid_to_procid(pid);
139 smbprofile_cleanup(pid, state->parent_pid);
141 ret = messaging_cleanup(msg, pid);
143 if ((ret != 0) && (ret != ENOENT)) {
144 DBG_DEBUG("messaging_cleanup returned %s\n", strerror(ret));
147 if (!serverid_deregister(child_id)) {
148 DEBUG(1, ("Could not remove pid %d from serverid.tdb\n",
153 NTSTATUS smbd_cleanupd_recv(struct tevent_req *req)
155 return tevent_req_simple_recv_ntstatus(req);