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-rw-r--r--programs/starter/invokecharon.c174
-rw-r--r--programs/starter/invokecharon.h31
-rw-r--r--programs/starter/starterstroke.c161
-rw-r--r--programs/starter/starterstroke.h27
4 files changed, 393 insertions, 0 deletions
diff --git a/programs/starter/invokecharon.c b/programs/starter/invokecharon.c
new file mode 100644
index 000000000..a56a03ba8
--- /dev/null
+++ b/programs/starter/invokecharon.c
@@ -0,0 +1,174 @@
+/* strongSwan charon launcher
+ * Copyright (C) 2001-2002 Mathieu Lafon - Arkoon Network Security
+ * Copyright (C) 2006 Martin Willi - Hochschule fuer Technik Rapperswil
+ *
+ * Ported from invokepluto.c to fit charons needs.
+ *
+ * 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.
+ *
+ * RCSID $Id: invokecharon.c $
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <signal.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <freeswan.h>
+
+#include "../pluto/constants.h"
+#include "../pluto/defs.h"
+#include "../pluto/log.h"
+
+#include "confread.h"
+#include "invokecharon.h"
+#include "files.h"
+
+static int _charon_pid = 0;
+static int _stop_requested;
+
+pid_t
+starter_charon_pid(void)
+{
+ return _charon_pid;
+}
+
+void
+starter_charon_sigchild(pid_t pid)
+{
+ if (pid == _charon_pid)
+ {
+ _charon_pid = 0;
+ if (!_stop_requested)
+ {
+ plog("charon has died -- restart scheduled (%dsec)"
+ , CHARON_RESTART_DELAY);
+ alarm(CHARON_RESTART_DELAY); // restart in 5 sec
+ }
+ unlink(CHARON_PID_FILE);
+ }
+}
+
+int
+starter_stop_charon (void)
+{
+ pid_t pid;
+ int i;
+
+ pid = _charon_pid;
+ if (pid)
+ {
+ _stop_requested = 1;
+
+ /* be more and more aggressive */
+ for (i = 0; i < 20 && (pid = _charon_pid) != 0; i++)
+ {
+ if (i == 0)
+ kill(pid, SIGINT);
+ else if (i < 10)
+ kill(pid, SIGTERM);
+ else
+ kill(pid, SIGKILL);
+ usleep(20000);
+ }
+ if (_charon_pid == 0)
+ return 0;
+ plog("starter_stop_charon(): can't stop charon !!!");
+ return -1;
+ }
+ else
+ {
+ plog("stater_stop_charon(): charon is not started...");
+ }
+ return -1;
+}
+
+
+int
+starter_start_charon (starter_config_t *cfg, bool debug)
+{
+ int pid, i;
+ struct stat stb;
+ int argc = 1;
+ char *arg[] = {
+ CHARON_CMD, NULL, NULL,
+ };
+
+ if (!debug)
+ {
+ arg[argc++] = "--use-syslog";
+ }
+
+ if (_charon_pid)
+ {
+ plog("starter_start_charon(): charon already started...");
+ return -1;
+ }
+ else
+ {
+ unlink(CHARON_CTL_FILE);
+ _stop_requested = 0;
+
+ pid = fork();
+ switch (pid)
+ {
+ case -1:
+ plog("can't fork(): %s", strerror(errno));
+ return -1;
+ case 0:
+ /* child */
+ setsid();
+ sigprocmask(SIG_SETMASK, 0, NULL);
+ execv(arg[0], arg);
+ plog("can't execv(%s,...): %s", arg[0], strerror(errno));
+ exit(1);
+ default:
+ /* father */
+ _charon_pid = pid;
+ for (i = 0; i < 50 && _charon_pid; i++)
+ {
+ /* wait for charon */
+ usleep(20000);
+ if (stat(CHARON_PID_FILE, &stb) == 0)
+ {
+ DBG(DBG_CONTROL,
+ DBG_log("charon (%d) started", _charon_pid)
+ )
+ return 0;
+ }
+ }
+ if (_charon_pid)
+ {
+ /* If charon is started but with no ctl file, stop it */
+ plog("charon too long to start... - kill kill");
+ for (i = 0; i < 20 && (pid = _charon_pid) != 0; i++)
+ {
+ if (i == 0)
+ kill(pid, SIGINT);
+ else if (i < 10)
+ kill(pid, SIGTERM);
+ else
+ kill(pid, SIGKILL);
+ usleep(20000);
+ }
+ }
+ else
+ {
+ plog("charon refused to be started");
+ }
+ return -1;
+ }
+ }
+ return -1;
+}
diff --git a/programs/starter/invokecharon.h b/programs/starter/invokecharon.h
new file mode 100644
index 000000000..b18dba362
--- /dev/null
+++ b/programs/starter/invokecharon.h
@@ -0,0 +1,31 @@
+/* strongSwan charon launcher
+ * Copyright (C) 2001-2002 Mathieu Lafon - Arkoon Network Security
+ * Copyright (C) 2006 Martin Willi - Hochschule fuer Technik Rapperswil
+ *
+ * Ported from invokepluto.h to fit charons needs.
+ *
+ * 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.
+ *
+ * RCSID $Id: invokecharon.h $
+ */
+
+#ifndef _STARTER_CHARON_H_
+#define _STARTER_CHARON_H_
+
+#define CHARON_RESTART_DELAY 5
+
+extern void starter_charon_sigchild (pid_t pid);
+extern pid_t starter_charon_pid (void);
+extern int starter_stop_charon (void);
+extern int starter_start_charon(struct starter_config *cfg, bool debug);
+
+#endif /* _STARTER_CHARON_H_ */
+
diff --git a/programs/starter/starterstroke.c b/programs/starter/starterstroke.c
new file mode 100644
index 000000000..115741404
--- /dev/null
+++ b/programs/starter/starterstroke.c
@@ -0,0 +1,161 @@
+/* Stroke for charon is the counterpart to whack from pluto
+ * Copyright (C) 2006 Martin Willi - Hochschule fuer Technik Rapperswil
+ *
+ * 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.
+ *
+ * RCSID $Id: starterstroke.c $
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <linux/stddef.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <freeswan.h>
+
+#include "../pluto/constants.h"
+#include "../pluto/defs.h"
+#include "../pluto/log.h"
+
+#include "../charon/stroke/stroke.h"
+
+#include "starterstroke.h"
+#include "confread.h"
+#include "files.h"
+
+static char* push_string(stroke_msg_t **strm, char *string)
+{
+ stroke_msg_t *stroke_msg;
+ size_t string_length;
+
+ if (string == NULL)
+ {
+ return NULL;
+ }
+ stroke_msg = *strm;
+ string_length = strlen(string) + 1;
+ stroke_msg->length += string_length;
+
+ stroke_msg = realloc(stroke_msg, stroke_msg->length);
+ strcpy((char*)stroke_msg + stroke_msg->length - string_length, string);
+
+ *strm = stroke_msg;
+ return (char*)(u_int)stroke_msg->length - string_length;
+}
+
+static int
+send_stroke_msg (stroke_msg_t *msg)
+{
+ struct sockaddr_un ctl_addr = { AF_UNIX, CHARON_CTL_FILE };
+ int sock;
+
+ sock = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (sock < 0)
+ {
+ plog("socket() failed: %s", strerror(errno));
+ return -1;
+ }
+ if (connect(sock, (struct sockaddr *)&ctl_addr,
+ offsetof(struct sockaddr_un, sun_path) + strlen(ctl_addr.sun_path)) < 0)
+ {
+ plog("connect(charon_ctl) failed: %s", strerror(errno));
+ close(sock);
+ return -1;
+ }
+
+ /* send message */
+ if (write(sock, msg, msg->length) != msg->length)
+ {
+ plog("write(charon_ctl) failed: %s", strerror(errno));
+ close(sock);
+ return -1;
+ }
+
+ close(sock);
+ return 0;
+}
+
+static char *
+connection_name(starter_conn_t *conn)
+{
+ /* if connection name is '%auto', create a new name like conn_xxxxx */
+ static char buf[32];
+
+ if (streq(conn->name, "%auto"))
+ {
+ sprintf(buf, "conn_%ld", conn->id);
+ return buf;
+ }
+ return conn->name;
+}
+
+
+int starter_stroke_add_conn(starter_conn_t *conn)
+{
+ stroke_msg_t *msg = malloc(sizeof(stroke_msg_t));
+ int res;
+
+ msg->length = sizeof(stroke_msg_t);
+ msg->type = STR_ADD_CONN;
+
+ msg->add_conn.name = push_string(&msg, connection_name(conn));
+
+ msg->add_conn.me.id = push_string(&msg, conn->left.id);
+ msg->add_conn.me.cert = push_string(&msg, conn->left.cert);
+ msg->add_conn.me.address = push_string(&msg, inet_ntoa(conn->left.addr.u.v4.sin_addr));
+ msg->add_conn.me.subnet = push_string(&msg, inet_ntoa(conn->left.subnet.addr.u.v4.sin_addr));
+ msg->add_conn.me.subnet_mask = conn->left.subnet.maskbits;
+
+ msg->add_conn.other.id = push_string(&msg, conn->right.id);
+ msg->add_conn.other.cert = push_string(&msg, conn->right.cert);
+ msg->add_conn.other.address = push_string(&msg, inet_ntoa(conn->right.addr.u.v4.sin_addr));
+ msg->add_conn.other.subnet = push_string(&msg, inet_ntoa(conn->right.subnet.addr.u.v4.sin_addr));
+ msg->add_conn.other.subnet_mask = conn->right.subnet.maskbits;
+
+ res = send_stroke_msg(msg);
+ free(msg);
+ return res;
+}
+
+int starter_stroke_del_conn(starter_conn_t *conn)
+{
+ return 0;
+}
+int starter_stroke_route_conn(starter_conn_t *conn)
+{
+ stroke_msg_t *msg = malloc(sizeof(stroke_msg_t));
+ int res;
+
+ msg->length = sizeof(stroke_msg_t);
+ msg->type = STR_INSTALL;
+ msg->install.name = push_string(&msg, connection_name(conn));
+ res = send_stroke_msg(msg);
+ free(msg);
+ return res;
+}
+
+int starter_stroke_initiate_conn(starter_conn_t *conn)
+{
+ stroke_msg_t *msg = malloc(sizeof(stroke_msg_t));
+ int res;
+
+ msg->length = sizeof(stroke_msg_t);
+ msg->type = STR_INITIATE;
+ msg->initiate.name = push_string(&msg, connection_name(conn));
+ res = send_stroke_msg(msg);
+ free(msg);
+ return res;
+}
diff --git a/programs/starter/starterstroke.h b/programs/starter/starterstroke.h
new file mode 100644
index 000000000..10fc8b84f
--- /dev/null
+++ b/programs/starter/starterstroke.h
@@ -0,0 +1,27 @@
+/* Stroke for charon is the counterpart to whack from pluto
+ * Copyright (C) 2006 Martin Willi - Hochschule fuer Technik Rapperswil
+ *
+ * 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.
+ *
+ * RCSID $Id: starterstroke.h $
+ */
+
+#ifndef _STARTER_STROKE_H_
+#define _STARTER_STROKE_H_
+
+#include "confread.h"
+
+extern int starter_stroke_add_conn(starter_conn_t *conn);
+extern int starter_stroke_del_conn(starter_conn_t *conn);
+extern int starter_stroke_route_conn(starter_conn_t *conn);
+extern int starter_stroke_initiate_conn(starter_conn_t *conn);
+
+#endif /* _STARTER_STROKE_H_ */
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