+/*
+ * Copyright (C) 2012 Martin Willi
+ * Copyright (C) 2012 revosec AG
+ *
+ * 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 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * 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.
+ */
+
+#include "load_tester_control.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <daemon.h>
+#include <threading/thread.h>
+#include <processing/jobs/callback_job.h>
+
+typedef struct private_load_tester_control_t private_load_tester_control_t;
+
+/**
+ * Private data of an load_tester_control_t object.
+ */
+struct private_load_tester_control_t {
+
+ /**
+ * Public load_tester_control_t interface.
+ */
+ load_tester_control_t public;
+
+ /**
+ * Load tester unix socket file descriptor
+ */
+ int socket;
+};
+
+/**
+ * Open load-tester listening socket
+ */
+static bool open_socket(private_load_tester_control_t *this)
+{
+ struct sockaddr_un addr;
+ mode_t old;
+
+ addr.sun_family = AF_UNIX;
+ strcpy(addr.sun_path, LOAD_TESTER_SOCKET);
+
+ this->socket = socket(AF_UNIX, SOCK_SEQPACKET, 0);
+ if (this->socket == -1)
+ {
+ DBG1(DBG_CFG, "creating load-tester socket failed");
+ return FALSE;
+ }
+ unlink(addr.sun_path);
+ old = umask(~(S_IRWXU | S_IRWXG));
+ if (bind(this->socket, (struct sockaddr*)&addr, sizeof(addr)) < 0)
+ {
+ DBG1(DBG_CFG, "binding load-tester socket failed: %s", strerror(errno));
+ close(this->socket);
+ return FALSE;
+ }
+ umask(old);
+ if (chown(addr.sun_path, charon->caps->get_uid(charon->caps),
+ charon->caps->get_gid(charon->caps)) != 0)
+ {
+ DBG1(DBG_CFG, "changing load-tester socket permissions failed: %s",
+ strerror(errno));
+ }
+ if (listen(this->socket, 10) < 0)
+ {
+ DBG1(DBG_CFG, "listening on load-tester socket failed: %s", strerror(errno));
+ close(this->socket);
+ unlink(addr.sun_path);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/**
+ * Initiate load-test, write progress to stream
+ */
+static job_requeue_t initiate(FILE *stream)
+{
+ enumerator_t *enumerator;
+ peer_cfg_t *peer_cfg;
+ child_cfg_t *child_cfg;
+ u_int i, count;
+ char buf[16] = "";
+
+ fflush(stream);
+ if (fgets(buf, sizeof(buf), stream) == NULL)
+ {
+ return JOB_REQUEUE_NONE;
+ }
+ if (sscanf(buf, "%u", &count) != 1)
+ {
+ return JOB_REQUEUE_NONE;
+ }
+
+ peer_cfg = charon->backends->get_peer_cfg_by_name(charon->backends,
+ "load-test");
+ if (!peer_cfg)
+ {
+ return JOB_REQUEUE_NONE;
+ }
+ enumerator = peer_cfg->create_child_cfg_enumerator(peer_cfg);
+ if (!enumerator->enumerate(enumerator, &child_cfg))
+ {
+ enumerator->destroy(enumerator);
+ return JOB_REQUEUE_NONE;
+ }
+ enumerator->destroy(enumerator);
+
+ for (i = 0; i < count; i++)
+ {
+ if (charon->controller->initiate(charon->controller,
+ peer_cfg->get_ref(peer_cfg),
+ child_cfg->get_ref(child_cfg),
+ controller_cb_empty, NULL, 0) == SUCCESS)
+ {
+ fprintf(stream, ".");
+ }
+ else
+ {
+ fprintf(stream, "!");
+ }
+ fflush(stream);
+ }
+ peer_cfg->destroy(peer_cfg);
+ fprintf(stream, "\n");
+
+ return JOB_REQUEUE_NONE;
+}
+
+/**
+ * Accept load-tester control connections, dispatch
+ */
+static job_requeue_t receive(private_load_tester_control_t *this)
+{
+ struct sockaddr_un addr;
+ int fd, len = sizeof(addr);
+ bool oldstate;
+ FILE *stream;
+
+ oldstate = thread_cancelability(TRUE);
+ fd = accept(this->socket, (struct sockaddr*)&addr, &len);
+ thread_cancelability(oldstate);
+
+ if (fd != -1)
+ {
+ stream = fdopen(fd, "r+");
+ if (stream)
+ {
+ DBG1(DBG_CFG, "client connected");
+ lib->processor->queue_job(lib->processor,
+ (job_t*)callback_job_create_with_prio(
+ (callback_job_cb_t)initiate, stream, (void*)fclose,
+ (callback_job_cancel_t)return_false, JOB_PRIO_CRITICAL));
+ }
+ else
+ {
+ close(fd);
+ }
+ }
+ return JOB_REQUEUE_FAIR;
+}
+
+METHOD(load_tester_control_t, destroy, void,
+ private_load_tester_control_t *this)
+{
+ if (this->socket != -1)
+ {
+ close(this->socket);
+ }
+ free(this);
+}
+
+/**
+ * See header
+ */
+load_tester_control_t *load_tester_control_create()
+{
+ private_load_tester_control_t *this;
+
+ INIT(this,
+ .public = {
+ .destroy = _destroy,
+ },
+ );
+
+ if (open_socket(this))
+ {
+ lib->processor->queue_job(lib->processor, (job_t*)
+ callback_job_create_with_prio((callback_job_cb_t)receive, this, NULL,
+ (callback_job_cancel_t)return_false, JOB_PRIO_CRITICAL));
+ }
+ else
+ {
+ this->socket = -1;
+ }
+
+ return &this->public;
+}
projects / strongswan.git / commitdiff