diff options
| -rw-r--r-- | sbin/isakmpd/connection.c | 183 | ||||
| -rw-r--r-- | sbin/isakmpd/connection.h | 48 |
2 files changed, 231 insertions, 0 deletions
diff --git a/sbin/isakmpd/connection.c b/sbin/isakmpd/connection.c new file mode 100644 index 00000000000..8614b0023e1 --- /dev/null +++ b/sbin/isakmpd/connection.c @@ -0,0 +1,183 @@ +/* $OpenBSD: connection.c,v 1.1 1999/05/02 05:52:48 niklas Exp $ */ +/* $EOM: connection.c,v 1.1 1999/05/01 20:21:09 niklas Exp $ */ + +/* + * Copyright (c) 1999 Niklas Hallqvist. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Ericsson Radio Systems. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * This code was written under funding by Ericsson Radio Systems. + */ + +#include <sys/queue.h> +#include <sys/time.h> +#include <stdlib.h> +#include <string.h> + +#include "sysdep.h" + +#include "conf.h" +#include "connection.h" +#include "log.h" +#include "timer.h" + +/* How often should we check that connections we require to be up, are up? */ +#define CHECK_INTERVAL 60 + +struct connection +{ + TAILQ_ENTRY (connection) link; + char *name; + struct event *ev; +}; + +TAILQ_HEAD (connection_head, connection) connections; + +/* + * This is where we setup all the connections we want there right from the + * start. + */ +void +connection_init () +{ + struct conf_list *conns; + struct conf_list_node *conn; + + TAILQ_INIT (&connections); + conns = conf_get_list ("Phase 2", "Connections"); + if (conns) + { + for (conn = TAILQ_FIRST (&conns->fields); conn; + conn = TAILQ_NEXT (conn, link)) + { + if (connection_setup (conn->field)) + log_print ("connection_init: could not setup \"%s\"", conn->field); + continue; + } + conf_free_list (conns); + } +} + +/* Check the connection in VCONN and schedule another check later. */ +static void +connection_checker (void *vconn) +{ + struct timeval now; + struct connection *conn = vconn; + + gettimeofday (&now, 0); + now.tv_sec += conf_get_num ("General", "check-interval", CHECK_INTERVAL); + conn->ev + = timer_add_event ("connection_checker", connection_checker, conn, &now); + if (!conn->ev) + log_print ("connection_checker: could not add timer event"); + sysdep_connection_check (conn->name); +} + +/* Find the connection named NAME. */ +static struct connection * +connection_lookup (char *name) +{ + struct connection *conn; + + for (conn = TAILQ_FIRST (&connections); conn; conn = TAILQ_NEXT (conn, link)) + if (strcasecmp (conn->name, name) == 0) + return conn; + return 0; +} + +/* + * Setup NAME to be a connection that should be up "always", i.e. if it dies, + * for whatever reason, it should be tried to be brought up, over and over + * again. + */ +int +connection_setup (char *name) +{ + struct connection *conn = 0; + struct timeval now; + + /* Check for trials to add duplicate connections. */ + if (connection_lookup (name)) + { + log_debug (LOG_MISC, 10, "connection_setup: cannot add \"%s\" twice", + name); + return 0; + } + + conn = calloc (1, sizeof *conn); + if (!conn) + { + log_error ("connection_setup: calloc (1, %d) failed", sizeof *conn); + goto fail; + } + + conn->name = strdup (name); + if (!conn->name) + { + log_error ("connection_setup: strdup (\"%s\") failed", name); + goto fail; + } + + gettimeofday (&now, 0); + conn->ev + = timer_add_event ("connection_checker", connection_checker, conn, &now); + if (!conn->ev) + { + log_print ("connection_setup: could not add timer event"); + goto fail; + } + + TAILQ_INSERT_TAIL (&connections, conn, link); + return 0; + + fail: + if (conn) + { + if (conn->name) + free (conn->name); + free (conn); + } + return -1; +} + +/* Remove the connection named NAME. */ +void +connection_teardown (char *name) +{ + struct connection *conn; + + conn = connection_lookup (name); + if (!conn) + return; + + TAILQ_REMOVE (&connections, conn, link); + timer_remove_event (conn->ev); + free (conn->name); + free (conn); +} diff --git a/sbin/isakmpd/connection.h b/sbin/isakmpd/connection.h new file mode 100644 index 00000000000..adefe87a5ea --- /dev/null +++ b/sbin/isakmpd/connection.h @@ -0,0 +1,48 @@ +/* $OpenBSD: connection.h,v 1.1 1999/05/02 05:52:48 niklas Exp $ */ +/* $EOM: connection.h,v 1.1 1999/05/01 20:21:09 niklas Exp $ */ + +/* + * Copyright (c) 1999 Niklas Hallqvist. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Ericsson Radio Systems. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * This code was written under funding by Ericsson Radio Systems. + */ + +/* + * The connection module deals with connections that should always be up. + */ + +#ifndef _CONNECTION_H_ +#define _CONNECTION_H_ + +extern void connection_init (void); +extern int connection_setup (char *); +extern void connection_teardown (char *); + +#endif /* _CONNECTION_H_ */ |