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/*
Unix SMB/CIFS implementation.
Make sure that for offline files pread and pwrite trigger a notify
Copyright (C) Volker Lendecke 2011
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 "torture/proto.h"
#include "libcli/security/security.h"
#include "lib/util/tevent_ntstatus.h"
#include "libsmb/libsmb.h"
extern char *test_filename;
struct notify_online_state {
struct tevent_context *ev;
struct cli_state *cli;
uint16_t dnum;
const char *fname;
uint16_t fnum;
bool got_notify;
};
static void notify_online_opened_dir(struct tevent_req *subreq);
static void notify_online_notify_callback(struct tevent_req *subreq);
static void notify_online_opened_file(struct tevent_req *subreq);
static void notify_online_sent_read(struct tevent_req *subreq);
static void notify_online_sent_closefile(struct tevent_req *subreq);
static void notify_online_waited(struct tevent_req *subreq);
static void notify_online_sent_closedir(struct tevent_req *subreq);
static struct tevent_req *notify_online_send(
TALLOC_CTX *mem_ctx, struct tevent_context *ev,
struct cli_state *cli, const char *dname, const char *fname)
{
struct tevent_req *req, *subreq;
struct notify_online_state *state;
req = tevent_req_create(mem_ctx, &state, struct notify_online_state);
if (req == NULL) {
return NULL;
}
state->ev = ev;
state->cli = cli;
state->fname = fname;
subreq = cli_ntcreate_send(
state, ev, cli, dname, EXTENDED_RESPONSE_REQUIRED,
SEC_FILE_READ_DATA, 0,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
FILE_OPEN, 0, SMB2_IMPERSONATION_IMPERSONATION, 0);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, notify_online_opened_dir, req);
return req;
}
static void notify_online_opened_dir(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct notify_online_state *state = tevent_req_data(
req, struct notify_online_state);
NTSTATUS status;
status = cli_ntcreate_recv(subreq, &state->dnum, NULL);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
subreq = cli_notify_send(state, state->ev, state->cli, state->dnum,
128, FILE_NOTIFY_CHANGE_ATTRIBUTES, false);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, notify_online_notify_callback, req);
subreq = cli_ntcreate_send(
state, state->ev, state->cli, state->fname, 0,
GENERIC_READ_ACCESS, FILE_ATTRIBUTE_NORMAL,
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
FILE_OPEN, FILE_NON_DIRECTORY_FILE,
SMB2_IMPERSONATION_IMPERSONATION, 0);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, notify_online_opened_file, req);
}
static void notify_online_notify_callback(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct notify_online_state *state = tevent_req_data(
req, struct notify_online_state);
NTSTATUS status;
uint32_t num_changes;
struct notify_change *changes;
status = cli_notify_recv(subreq, state, &num_changes, &changes);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
if ((num_changes == 1)
&& (changes[0].action == NOTIFY_ACTION_MODIFIED)
&& (strcmp(changes[0].name, state->fname) == 0)) {
state->got_notify = true;
}
tevent_req_done(req);
}
static void notify_online_opened_file(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct notify_online_state *state = tevent_req_data(
req, struct notify_online_state);
NTSTATUS status;
status = cli_ntcreate_recv(subreq, &state->fnum, NULL);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
subreq = cli_read_andx_send(
state, state->ev, state->cli, state->fnum, 0, 1);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, notify_online_sent_read, req);
}
static void notify_online_sent_read(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct notify_online_state *state = tevent_req_data(
req, struct notify_online_state);
NTSTATUS status;
ssize_t received;
uint8_t *buf;
status = cli_read_andx_recv(subreq, &received, &buf);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
subreq = cli_close_send(
state, state->ev, state->cli, state->fnum);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, notify_online_sent_closefile, req);
}
static void notify_online_sent_closefile(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct notify_online_state *state = tevent_req_data(
req, struct notify_online_state);
NTSTATUS status;
status = cli_close_recv(subreq);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
subreq = tevent_wakeup_send(
state, state->ev, timeval_current_ofs(10, 0));
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, notify_online_waited, req);
}
static void notify_online_waited(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct notify_online_state *state = tevent_req_data(
req, struct notify_online_state);
tevent_wakeup_recv(subreq);
TALLOC_FREE(subreq);
subreq = cli_close_send(
state, state->ev, state->cli, state->dnum);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, notify_online_sent_closedir, req);
}
static void notify_online_sent_closedir(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
NTSTATUS status;
status = cli_close_recv(subreq);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
}
static NTSTATUS notify_online_recv(struct tevent_req *req, bool *got_notify)
{
struct notify_online_state *state = tevent_req_data(
req, struct notify_online_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
*got_notify = state->got_notify;
return NT_STATUS_OK;
}
static NTSTATUS notify_online(struct cli_state *cli,
const char *dirname, const char *filename,
bool *got_notify)
{
TALLOC_CTX *frame = talloc_stackframe();
struct tevent_context *ev;
struct tevent_req *req;
NTSTATUS status = NT_STATUS_NO_MEMORY;
ev = samba_tevent_context_init(frame);
if (ev == NULL) {
goto fail;
}
req = notify_online_send(frame, ev, cli, dirname, filename);
if (req == NULL) {
goto fail;
}
if (!tevent_req_poll_ntstatus(req, ev, &status)) {
goto fail;
}
status = notify_online_recv(req, got_notify);
fail:
TALLOC_FREE(frame);
return status;
}
bool run_notify_online(int dummy)
{
struct cli_state *cli;
NTSTATUS status;
char *p;
const char *dir;
const char *file;
bool got_notify = false;
printf("Starting NOTIFY_ONLINE\n");
if (test_filename == NULL) {
fprintf(stderr, "<-f filename> missing\n");
return false;
}
if (!torture_open_connection(&cli, 0)) {
return false;
}
p = strrchr(test_filename, '/');
if (p != NULL) {
dir = SMB_STRNDUP(test_filename, p-test_filename);
file = SMB_STRDUP(p+1);
} else {
dir = "";
file = test_filename;
}
status = notify_online(cli, dir, file, &got_notify);
d_printf("notify_online returned %s (%d)\n", nt_errstr(status),
(int)got_notify);
torture_close_connection(cli);
return NT_STATUS_IS_OK(status) && got_notify;
}
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