예제 #1
0
struct rspamd_worker *
rspamd_fork_worker (struct rspamd_main *rspamd_main,
		struct rspamd_worker_conf *cf,
		guint index,
		struct event_base *ev_base)
{
	struct rspamd_worker *wrk;
	gint rc;
	struct rlimit rlim;

	/* Starting worker process */
	wrk = (struct rspamd_worker *) g_malloc0 (sizeof (struct rspamd_worker));

	if (!rspamd_socketpair (wrk->control_pipe)) {
		msg_err ("socketpair failure: %s", strerror (errno));
		exit (-errno);
	}

	if (!rspamd_socketpair (wrk->srv_pipe)) {
		msg_err ("socketpair failure: %s", strerror (errno));
		exit (-errno);
	}

	wrk->srv = rspamd_main;
	wrk->type = cf->type;
	wrk->cf = cf;
	REF_RETAIN (cf);
	wrk->index = index;
	wrk->ctx = cf->ctx;
	wrk->finish_actions = g_ptr_array_new ();

	wrk->pid = fork ();

	switch (wrk->pid) {
	case 0:
		/* Update pid for logging */
		rspamd_log_update_pid (cf->type, rspamd_main->logger);

		/* Init PRNG after fork */
		rc = ottery_init (rspamd_main->cfg->libs_ctx->ottery_cfg);
		if (rc != OTTERY_ERR_NONE) {
			msg_err_main ("cannot initialize PRNG: %d", rc);
			abort ();
		}

		rspamd_random_seed_fast ();
#ifdef HAVE_EVUTIL_RNG_INIT
		evutil_secure_rng_init ();
#endif

		/* Remove the inherited event base */
		event_reinit (rspamd_main->ev_base);
		event_base_free (rspamd_main->ev_base);

		/* Drop privilleges */
		rspamd_worker_drop_priv (rspamd_main);
		/* Set limits */
		rspamd_worker_set_limits (rspamd_main, cf);
		/* Re-set stack limit */
		getrlimit (RLIMIT_STACK, &rlim);
		rlim.rlim_cur = 100 * 1024 * 1024;
		rlim.rlim_max = rlim.rlim_cur;
		setrlimit (RLIMIT_STACK, &rlim);

		setproctitle ("%s process", cf->worker->name);
		rspamd_pidfile_close (rspamd_main->pfh);
		/* Do silent log reopen to avoid collisions */
		rspamd_log_close (rspamd_main->logger);
		rspamd_log_open (rspamd_main->logger);
		wrk->start_time = rspamd_get_calendar_ticks ();

#if ((GLIB_MAJOR_VERSION == 2) && (GLIB_MINOR_VERSION <= 30))
# if (GLIB_MINOR_VERSION > 20)
		/* Ugly hack for old glib */
		if (!g_thread_get_initialized ()) {
			g_thread_init (NULL);
		}
# else
		g_thread_init (NULL);
# endif
#endif
		msg_info_main ("starting %s process %P (%d)", cf->worker->name,
				getpid (), index);
		/* Close parent part of socketpair */
		close (wrk->control_pipe[0]);
		close (wrk->srv_pipe[0]);
		rspamd_socket_nonblocking (wrk->control_pipe[1]);
		rspamd_socket_nonblocking (wrk->srv_pipe[1]);
		/* Execute worker */
		cf->worker->worker_start_func (wrk);
		exit (EXIT_FAILURE);
		break;
	case -1:
		msg_err_main ("cannot fork main process. %s", strerror (errno));
		rspamd_pidfile_remove (rspamd_main->pfh);
		exit (-errno);
		break;
	default:
		/* Close worker part of socketpair */
		close (wrk->control_pipe[1]);
		close (wrk->srv_pipe[1]);
		rspamd_socket_nonblocking (wrk->control_pipe[0]);
		rspamd_socket_nonblocking (wrk->srv_pipe[0]);
		rspamd_srv_start_watching (wrk, ev_base);
		/* Insert worker into worker's table, pid is index */
		g_hash_table_insert (rspamd_main->workers, GSIZE_TO_POINTER (
				wrk->pid), wrk);
		break;
	}

	return wrk;
}
예제 #2
0
static gint
lua_worker_spawn_process (lua_State *L)
{
	struct rspamd_worker *w = lua_check_worker (L, 1);
	struct rspamd_lua_process_cbdata *cbdata;
	struct rspamd_abstract_worker_ctx *actx;
	struct rspamd_srv_command srv_cmd;
	const gchar *cmdline = NULL, *input = NULL;
	gsize inputlen = 0;
	pid_t pid;
	GError *err = NULL;
	gint func_cbref, cb_cbref;

	if (!rspamd_lua_parse_table_arguments (L, 2, &err,
			"func=F;exec=S;stdin=V;*on_complete=F", &func_cbref,
			&cmdline, &inputlen, &input, &cb_cbref)) {
		msg_err ("cannot get parameters list: %e", err);

		if (err) {
			g_error_free (err);
		}

		return 0;
	}

	cbdata = g_malloc0 (sizeof (*cbdata));
	cbdata->cb_cbref = cb_cbref;
	cbdata->func_cbref = func_cbref;

	if (input) {
		cbdata->out_buf = g_string_new_len (input, inputlen);
		cbdata->out_pos = 0;
	}

	if (rspamd_socketpair (cbdata->sp, TRUE) == -1) {
		msg_err ("cannot spawn socketpair: %s", strerror (errno));
		luaL_unref (L, LUA_REGISTRYINDEX, cbdata->func_cbref);
		luaL_unref (L, LUA_REGISTRYINDEX, cbdata->cb_cbref);
		g_free (cbdata);

		return 0;
	}

	actx = w->ctx;
	cbdata->wrk = w;
	cbdata->L = L;
	cbdata->ev_base = actx->ev_base;
	cbdata->sz = (guint64)-1;

	pid = fork ();

	if (pid == -1) {
		msg_err ("cannot spawn process: %s", strerror (errno));
		close (cbdata->sp[0]);
		close (cbdata->sp[1]);
		luaL_unref (L, LUA_REGISTRYINDEX, cbdata->func_cbref);
		luaL_unref (L, LUA_REGISTRYINDEX, cbdata->cb_cbref);
		g_free (cbdata);

		return 0;
	}
	else if (pid == 0) {
		/* Child */
		gint rc;
		gchar inbuf[4];

		rspamd_log_update_pid (w->cf->type, w->srv->logger);
		rc = ottery_init (w->srv->cfg->libs_ctx->ottery_cfg);

		if (rc != OTTERY_ERR_NONE) {
			msg_err ("cannot initialize PRNG: %d", rc);
			abort ();
		}
		rspamd_random_seed_fast ();
#ifdef HAVE_EVUTIL_RNG_INIT
		evutil_secure_rng_init ();
#endif

		close (cbdata->sp[0]);
		/* Here we assume that we can block on writing results */
		rspamd_socket_blocking (cbdata->sp[1]);
		event_reinit (cbdata->ev_base);
		g_hash_table_remove_all (w->signal_events);
		rspamd_worker_unblock_signals ();
		rspamd_lua_execute_lua_subprocess (L, cbdata);

		/* Wait for parent to reply and exit */
		rc = read (cbdata->sp[1], inbuf, sizeof (inbuf));

		if (memcmp (inbuf, "\0\0\0\0", 4) == 0) {
			exit (EXIT_SUCCESS);
		}
		else {
			msg_err ("got invalid reply from parent");

			exit (EXIT_FAILURE);
		}

	}

	cbdata->cpid = pid;
	cbdata->io_buf = g_string_sized_new (8);
	/* Notify main */
	memset (&srv_cmd, 0, sizeof (srv_cmd));
	srv_cmd.type = RSPAMD_SRV_ON_FORK;
	srv_cmd.cmd.on_fork.state = child_create;
	srv_cmd.cmd.on_fork.cpid = pid;
	srv_cmd.cmd.on_fork.ppid = getpid ();
	rspamd_srv_send_command (w, cbdata->ev_base, &srv_cmd, -1, NULL, NULL);

	close (cbdata->sp[1]);
	rspamd_socket_nonblocking (cbdata->sp[0]);
	/* Parent */
	rspamd_worker_set_signal_handler (SIGCHLD, w, cbdata->ev_base,
			rspamd_lua_cld_handler,
			cbdata);

	/* Add result pipe waiting */
	event_set (&cbdata->ev, cbdata->sp[0], EV_READ | EV_PERSIST,
			rspamd_lua_subprocess_io, cbdata);
	event_base_set (cbdata->ev_base, &cbdata->ev);
	/* TODO: maybe add timeout? */
	event_add (&cbdata->ev, NULL);

	return 0;
}
예제 #3
0
파일: lua_fann.c 프로젝트: croessner/rspamd
/**
 * @method rspamd_fann:train_threaded(inputs, outputs, callback, event_base, {params})
 * Trains neural network with batch of samples. Inputs and outputs should be tables of
 * equal size, each row in table should be N inputs and M outputs, e.g.
 *     {{0, 1, 1}, ...} -> {{0}, {1} ...}
 * @param {table} inputs input samples
 * @param {table} outputs output samples
 * @param {callback} function that is called when train is completed
 */
static gint
lua_fann_train_threaded (lua_State *L)
{
#ifndef WITH_FANN
	return 0;
#else
	struct fann *f = rspamd_lua_check_fann (L, 1);
	guint ninputs, noutputs, ndata, i, j;
	struct lua_fann_train_cbdata *cbdata;
	struct event_base *ev_base = lua_check_ev_base (L, 5);
	GError *err = NULL;
	const guint max_epochs_default = 1000;
	const gdouble desired_mse_default = 0.0001;

	if (f != NULL && lua_type (L, 2) == LUA_TTABLE &&
			lua_type (L, 3) == LUA_TTABLE && lua_type (L, 4) == LUA_TFUNCTION &&
			ev_base != NULL) {
		/* First check sanity, call for table.getn for that */
		ndata = rspamd_lua_table_size (L, 2);
		ninputs = fann_get_num_input (f);
		noutputs = fann_get_num_output (f);
		cbdata = g_malloc0 (sizeof (*cbdata));
		cbdata->L = L;
		cbdata->f = f;
		cbdata->train = rspamd_fann_create_train (ndata, ninputs, noutputs);
		lua_pushvalue (L, 4);
		cbdata->cbref = luaL_ref (L, LUA_REGISTRYINDEX);

		if (rspamd_socketpair (cbdata->pair, 0) == -1) {
			msg_err ("cannot open socketpair: %s", strerror (errno));
			cbdata->pair[0] = -1;
			cbdata->pair[1] = -1;
			goto err;
		}

		for (i = 0; i < ndata; i ++) {
			lua_rawgeti (L, 2, i + 1);

			if (rspamd_lua_table_size (L, -1) != ninputs) {
				msg_err ("invalid number of inputs: %d, %d expected",
						rspamd_lua_table_size (L, -1), ninputs);
				goto err;
			}

			for (j = 0; j < ninputs; j ++) {
				lua_rawgeti (L, -1, j + 1);
				cbdata->train->input[i][j] = lua_tonumber (L, -1);
				lua_pop (L, 1);
			}

			lua_pop (L, 1);
			lua_rawgeti (L, 3, i + 1);

			if (rspamd_lua_table_size (L, -1) != noutputs) {
				msg_err ("invalid number of outputs: %d, %d expected",
						rspamd_lua_table_size (L, -1), noutputs);
				goto err;
			}

			for (j = 0; j < noutputs; j++) {
				lua_rawgeti (L, -1, j + 1);
				cbdata->train->output[i][j] = lua_tonumber (L, -1);
				lua_pop (L, 1);
			}
		}

		cbdata->max_epochs = max_epochs_default;
		cbdata->desired_mse = desired_mse_default;

		if (lua_type (L, 5) == LUA_TTABLE) {
			rspamd_lua_parse_table_arguments (L, 5, NULL,
					"max_epochs=I;desired_mse=N",
					&cbdata->max_epochs, &cbdata->desired_mse);
		}

		/* Now we can call training in a separate thread */
		rspamd_socket_nonblocking (cbdata->pair[0]);
		event_set (&cbdata->io, cbdata->pair[0], EV_READ, lua_fann_thread_notify,
				cbdata);
		event_base_set (ev_base, &cbdata->io);
		/* TODO: add timeout */
		event_add (&cbdata->io, NULL);
		cbdata->t = rspamd_create_thread ("fann train", lua_fann_train_thread,
				cbdata, &err);

		if (cbdata->t == NULL) {
			msg_err ("cannot create training thread: %e", err);

			if (err) {
				g_error_free (err);
			}

			goto err;
		}
	}
	else {
		return luaL_error (L, "invalid arguments");
	}

	return 0;

err:
	if (cbdata->pair[0] != -1) {
		close (cbdata->pair[0]);
	}
	if (cbdata->pair[1] != -1) {
		close (cbdata->pair[1]);
	}

	fann_destroy_train (cbdata->train);
	luaL_unref (L, LUA_REGISTRYINDEX, cbdata->cbref);
	g_free (cbdata);
	return luaL_error (L, "invalid arguments");
#endif
}
예제 #4
0
파일: worker_util.c 프로젝트: mwidz/rspamd
struct rspamd_worker *
rspamd_fork_worker (struct rspamd_main *rspamd_main,
		struct rspamd_worker_conf *cf,
		guint index)
{
	struct rspamd_worker *cur;
	/* Starting worker process */
	cur = (struct rspamd_worker *) g_malloc0 (sizeof (struct rspamd_worker));

	if (!rspamd_socketpair (cur->control_pipe)) {
		msg_err ("socketpair failure: %s", strerror (errno));
		exit (-errno);
	}

	cur->srv = rspamd_main;
	cur->type = cf->type;
	cur->cf = g_malloc (sizeof (struct rspamd_worker_conf));
	memcpy (cur->cf, cf, sizeof (struct rspamd_worker_conf));
	cur->index = index;
	cur->ctx = cf->ctx;

	cur->pid = fork ();

	switch (cur->pid) {
	case 0:
		/* Update pid for logging */
		rspamd_log_update_pid (cf->type, rspamd_main->logger);
		/* Lock statfile pool if possible XXX */
		/* Init PRNG after fork */
		ottery_init (NULL);
		g_random_set_seed (ottery_rand_uint32 ());
		/* Drop privilleges */
		rspamd_worker_drop_priv (rspamd_main);
		/* Set limits */
		rspamd_worker_set_limits (rspamd_main, cf);
		setproctitle ("%s process", cf->worker->name);
		rspamd_pidfile_close (rspamd_main->pfh);
		/* Do silent log reopen to avoid collisions */
		rspamd_log_close (rspamd_main->logger);
		rspamd_log_open (rspamd_main->logger);
		cur->start_time = rspamd_get_calendar_ticks ();

#if ((GLIB_MAJOR_VERSION == 2) && (GLIB_MINOR_VERSION <= 30))
# if (GLIB_MINOR_VERSION > 20)
		/* Ugly hack for old glib */
		if (!g_thread_get_initialized ()) {
			g_thread_init (NULL);
		}
# else
		g_thread_init (NULL);
# endif
#endif
		msg_info_main ("starting %s process %P", cf->worker->name, getpid ());
		/* Close parent part of socketpair */
		close (cur->control_pipe[0]);
		rspamd_socket_nonblocking (cur->control_pipe[1]);
		/* Execute worker */
		cf->worker->worker_start_func (cur);
		break;
	case -1:
		msg_err_main ("cannot fork main process. %s", strerror (errno));
		rspamd_pidfile_remove (rspamd_main->pfh);
		exit (-errno);
		break;
	default:
		/* Close worker part of socketpair */
		close (cur->control_pipe[1]);
		rspamd_socket_nonblocking (cur->control_pipe[0]);
		/* Insert worker into worker's table, pid is index */
		g_hash_table_insert (rspamd_main->workers, GSIZE_TO_POINTER (
				cur->pid), cur);
		break;
	}

	return cur;
}