mirror of
https://github.com/samba-team/samba.git
synced 2024-12-23 17:34:34 +03:00
49859ac11d
To be used in smbtorture, avoid having to include almost all of smbd just for this Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
248 lines
6.2 KiB
C
248 lines
6.2 KiB
C
/*
|
|
* Unix SMB/CIFS implementation.
|
|
*
|
|
* Copyright (C) Volker Lendecke 2014
|
|
*
|
|
* 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 "librpc/gen_ndr/notify.h"
|
|
#include "librpc/gen_ndr/messaging.h"
|
|
#include "lib/dbwrap/dbwrap.h"
|
|
#include "lib/dbwrap/dbwrap_rbt.h"
|
|
#include "lib/util/server_id.h"
|
|
#include "messages.h"
|
|
#include "proto.h"
|
|
#include "globals.h"
|
|
#include "tdb.h"
|
|
#include "util_tdb.h"
|
|
#include "lib/util/server_id_db.h"
|
|
#include "smbd/notifyd/notifyd.h"
|
|
|
|
struct notify_context {
|
|
struct server_id notifyd;
|
|
struct messaging_context *msg_ctx;
|
|
|
|
struct smbd_server_connection *sconn;
|
|
void (*callback)(struct smbd_server_connection *sconn,
|
|
void *private_data, struct timespec when,
|
|
const struct notify_event *ctx);
|
|
};
|
|
|
|
static void notify_handler(struct messaging_context *msg, void *private_data,
|
|
uint32_t msg_type, struct server_id src,
|
|
DATA_BLOB *data);
|
|
static int notify_context_destructor(struct notify_context *ctx);
|
|
|
|
struct notify_context *notify_init(
|
|
TALLOC_CTX *mem_ctx, struct messaging_context *msg,
|
|
struct smbd_server_connection *sconn,
|
|
void (*callback)(struct smbd_server_connection *sconn,
|
|
void *, struct timespec,
|
|
const struct notify_event *))
|
|
{
|
|
struct server_id_db *names_db;
|
|
struct notify_context *ctx;
|
|
NTSTATUS status;
|
|
|
|
ctx = talloc(mem_ctx, struct notify_context);
|
|
if (ctx == NULL) {
|
|
return NULL;
|
|
}
|
|
ctx->msg_ctx = msg;
|
|
|
|
ctx->sconn = sconn;
|
|
ctx->callback = callback;
|
|
|
|
names_db = messaging_names_db(msg);
|
|
if (!server_id_db_lookup_one(names_db, "notify-daemon",
|
|
&ctx->notifyd)) {
|
|
DBG_WARNING("No notify daemon around\n");
|
|
TALLOC_FREE(ctx);
|
|
return NULL;
|
|
}
|
|
|
|
{
|
|
struct server_id_buf tmp;
|
|
DBG_DEBUG("notifyd=%s\n",
|
|
server_id_str_buf(ctx->notifyd, &tmp));
|
|
}
|
|
|
|
if (callback != NULL) {
|
|
status = messaging_register(msg, ctx, MSG_PVFS_NOTIFY,
|
|
notify_handler);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DBG_WARNING("messaging_register failed: %s\n",
|
|
nt_errstr(status));
|
|
TALLOC_FREE(ctx);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
talloc_set_destructor(ctx, notify_context_destructor);
|
|
|
|
return ctx;
|
|
}
|
|
|
|
static int notify_context_destructor(struct notify_context *ctx)
|
|
{
|
|
if (ctx->callback != NULL) {
|
|
messaging_deregister(ctx->msg_ctx, MSG_PVFS_NOTIFY, ctx);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void notify_handler(struct messaging_context *msg, void *private_data,
|
|
uint32_t msg_type, struct server_id src,
|
|
DATA_BLOB *data)
|
|
{
|
|
struct notify_context *ctx = talloc_get_type_abort(
|
|
private_data, struct notify_context);
|
|
struct notify_event_msg *event_msg;
|
|
struct notify_event event;
|
|
|
|
if (data->length < offsetof(struct notify_event_msg, path) + 1) {
|
|
DBG_WARNING("message too short: %zu\n", data->length);
|
|
return;
|
|
}
|
|
if (data->data[data->length-1] != 0) {
|
|
DBG_WARNING("path not 0-terminated\n");
|
|
return;
|
|
}
|
|
|
|
event_msg = (struct notify_event_msg *)data->data;
|
|
|
|
event.action = event_msg->action;
|
|
event.path = event_msg->path;
|
|
event.private_data = event_msg->private_data;
|
|
|
|
DBG_DEBUG("Got notify_event action=%"PRIu32", private_data=%p, "
|
|
"path=%s\n",
|
|
event.action,
|
|
event.private_data,
|
|
event.path);
|
|
|
|
ctx->callback(ctx->sconn, event.private_data, event_msg->when, &event);
|
|
}
|
|
|
|
NTSTATUS notify_add(struct notify_context *ctx,
|
|
const char *path, uint32_t filter, uint32_t subdir_filter,
|
|
void *private_data)
|
|
{
|
|
struct notify_rec_change_msg msg = {};
|
|
struct iovec iov[2];
|
|
size_t pathlen;
|
|
NTSTATUS status;
|
|
|
|
if (ctx == NULL) {
|
|
return NT_STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
DBG_DEBUG("path=[%s], filter=%"PRIu32", subdir_filter=%"PRIu32", "
|
|
"private_data=%p\n",
|
|
path,
|
|
filter,
|
|
subdir_filter,
|
|
private_data);
|
|
|
|
pathlen = strlen(path)+1;
|
|
|
|
clock_gettime_mono(&msg.instance.creation_time);
|
|
msg.instance.filter = filter;
|
|
msg.instance.subdir_filter = subdir_filter;
|
|
msg.instance.private_data = private_data;
|
|
|
|
iov[0].iov_base = &msg;
|
|
iov[0].iov_len = offsetof(struct notify_rec_change_msg, path);
|
|
iov[1].iov_base = discard_const_p(char, path);
|
|
iov[1].iov_len = pathlen;
|
|
|
|
status = messaging_send_iov(
|
|
ctx->msg_ctx, ctx->notifyd, MSG_SMB_NOTIFY_REC_CHANGE,
|
|
iov, ARRAY_SIZE(iov), NULL, 0);
|
|
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DBG_DEBUG("messaging_send_iov returned %s\n",
|
|
nt_errstr(status));
|
|
return status;
|
|
}
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
NTSTATUS notify_remove(struct notify_context *ctx, void *private_data,
|
|
char *path)
|
|
{
|
|
struct notify_rec_change_msg msg = {};
|
|
struct iovec iov[2];
|
|
NTSTATUS status;
|
|
|
|
/* see if change notify is enabled at all */
|
|
if (ctx == NULL) {
|
|
return NT_STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
msg.instance.private_data = private_data;
|
|
|
|
iov[0].iov_base = &msg;
|
|
iov[0].iov_len = offsetof(struct notify_rec_change_msg, path);
|
|
iov[1].iov_base = path;
|
|
iov[1].iov_len = strlen(path)+1;
|
|
|
|
status = messaging_send_iov(
|
|
ctx->msg_ctx, ctx->notifyd, MSG_SMB_NOTIFY_REC_CHANGE,
|
|
iov, ARRAY_SIZE(iov), NULL, 0);
|
|
|
|
return status;
|
|
}
|
|
|
|
void notify_trigger(struct notify_context *ctx,
|
|
uint32_t action, uint32_t filter,
|
|
const char *dir, const char *name)
|
|
{
|
|
struct notify_trigger_msg msg;
|
|
struct iovec iov[4];
|
|
char slash = '/';
|
|
|
|
DBG_DEBUG("notify_trigger called action=0x%"PRIx32", "
|
|
"filter=0x%"PRIx32", dir=%s, name=%s\n",
|
|
action,
|
|
filter,
|
|
dir,
|
|
name);
|
|
|
|
if (ctx == NULL) {
|
|
return;
|
|
}
|
|
|
|
msg.when = timespec_current();
|
|
msg.action = action;
|
|
msg.filter = filter;
|
|
|
|
iov[0].iov_base = &msg;
|
|
iov[0].iov_len = offsetof(struct notify_trigger_msg, path);
|
|
iov[1].iov_base = discard_const_p(char, dir);
|
|
iov[1].iov_len = strlen(dir);
|
|
iov[2].iov_base = &slash;
|
|
iov[2].iov_len = 1;
|
|
iov[3].iov_base = discard_const_p(char, name);
|
|
iov[3].iov_len = strlen(name)+1;
|
|
|
|
messaging_send_iov(
|
|
ctx->msg_ctx, ctx->notifyd, MSG_SMB_NOTIFY_TRIGGER,
|
|
iov, ARRAY_SIZE(iov), NULL, 0);
|
|
}
|