1 files changed, 294 insertions, 0 deletions
diff --git a/main/openvpn/src/openvpn/forward-inline.h b/main/openvpn/src/openvpn/forward-inline.h
new file mode 100644
index 00000000..5853ce29
--- /dev/null
+++ b/main/openvpn/src/openvpn/forward-inline.h
@@ -0,0 +1,294 @@
+/*
+ *  OpenVPN -- An application to securely tunnel IP networks
+ *             over a single TCP/UDP port, with support for SSL/TLS-based
+ *             session authentication and key exchange,
+ *             packet encryption, packet authentication, and
+ *             packet compression.
+ *
+ *  Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  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 (see the file COPYING included with this
+ *  distribution); if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef FORWARD_INLINE_H
+#define FORWARD_INLINE_H
+
+/*
+ * Inline functions
+ */
+
+/*
+ * Does TLS session need service?
+ */
+static inline void
+check_tls (struct context *c)
+{
+#if defined(ENABLE_CRYPTO) && defined(ENABLE_SSL)
+  void check_tls_dowork (struct context *c);
+  if (c->c2.tls_multi)
+    check_tls_dowork (c);
+#endif
+}
+
+/*
+ * TLS errors are fatal in TCP mode.
+ * Also check for --tls-exit trigger.
+ */
+static inline void
+check_tls_errors (struct context *c)
+{
+#if defined(ENABLE_CRYPTO) && defined(ENABLE_SSL)
+  void check_tls_errors_co (struct context *c);
+  void check_tls_errors_nco (struct context *c);
+  if (c->c2.tls_multi && c->c2.tls_exit_signal)
+    {
+      if (link_socket_connection_oriented (c->c2.link_socket))
+	{
+	  if (c->c2.tls_multi->n_soft_errors)
+	    check_tls_errors_co (c);
+	}
+      else
+	{
+	  if (c->c2.tls_multi->n_hard_errors)
+	    check_tls_errors_nco (c);
+	}
+    }
+#endif
+}
+
+/*
+ * Check for possible incoming configuration
+ * messages on the control channel.
+ */
+static inline void
+check_incoming_control_channel (struct context *c)
+{
+#if P2MP
+  void check_incoming_control_channel_dowork (struct context *c);
+  if (tls_test_payload_len (c->c2.tls_multi) > 0)
+    check_incoming_control_channel_dowork (c);
+#endif
+}
+
+/*
+ * Options like --up-delay need to be triggered by this function which
+ * checks for connection establishment.
+ */
+static inline void
+check_connection_established (struct context *c)
+{
+  void check_connection_established_dowork (struct context *c);
+  if (event_timeout_defined (&c->c2.wait_for_connect))
+    check_connection_established_dowork (c);
+}
+
+/*
+ * Should we add routes?
+ */
+static inline void
+check_add_routes (struct context *c)
+{
+  void check_add_routes_dowork (struct context *c);
+  if (event_timeout_trigger (&c->c2.route_wakeup, &c->c2.timeval, ETT_DEFAULT))
+    check_add_routes_dowork (c);
+}
+
+/*
+ * Should we exit due to inactivity timeout?
+ */
+static inline void
+check_inactivity_timeout (struct context *c)
+{
+  void check_inactivity_timeout_dowork (struct context *c);
+
+  if (c->options.inactivity_timeout
+      && event_timeout_trigger (&c->c2.inactivity_interval, &c->c2.timeval, ETT_DEFAULT))
+    check_inactivity_timeout_dowork (c);
+}
+
+#if P2MP
+
+static inline void
+check_server_poll_timeout (struct context *c)
+{
+  void check_server_poll_timeout_dowork (struct context *c);
+
+  if (c->options.server_poll_timeout
+      && event_timeout_trigger (&c->c2.server_poll_interval, &c->c2.timeval, ETT_DEFAULT))
+    check_server_poll_timeout_dowork (c);
+}
+
+/*
+ * Scheduled exit?
+ */
+static inline void
+check_scheduled_exit (struct context *c)
+{
+  void check_scheduled_exit_dowork (struct context *c);
+
+  if (event_timeout_defined (&c->c2.scheduled_exit))
+    {
+      if (event_timeout_trigger (&c->c2.scheduled_exit, &c->c2.timeval, ETT_DEFAULT))
+	check_scheduled_exit_dowork (c);
+    }
+}
+#endif
+
+/*
+ * Should we write timer-triggered status file.
+ */
+static inline void
+check_status_file (struct context *c)
+{
+  void check_status_file_dowork (struct context *c);
+
+  if (c->c1.status_output)
+    {
+      if (status_trigger_tv (c->c1.status_output, &c->c2.timeval))
+	check_status_file_dowork (c);
+    }
+}
+
+#ifdef ENABLE_FRAGMENT
+/*
+ * Should we deliver a datagram fragment to remote?
+ */
+static inline void
+check_fragment (struct context *c)
+{
+  void check_fragment_dowork (struct context *c);
+  if (c->c2.fragment)
+    check_fragment_dowork (c);
+}
+#endif
+
+#if P2MP
+
+/*
+ * see if we should send a push_request in response to --pull
+ */
+static inline void
+check_push_request (struct context *c)
+{
+  void check_push_request_dowork (struct context *c);
+  if (event_timeout_trigger (&c->c2.push_request_interval, &c->c2.timeval, ETT_DEFAULT))
+    check_push_request_dowork (c);
+}
+
+#endif
+
+#ifdef ENABLE_CRYPTO
+/*
+ * Should we persist our anti-replay packet ID state to disk?
+ */
+static inline void
+check_packet_id_persist_flush (struct context *c)
+{
+  if (packet_id_persist_enabled (&c->c1.pid_persist)
+      && event_timeout_trigger (&c->c2.packet_id_persist_interval, &c->c2.timeval, ETT_DEFAULT))
+    packet_id_persist_save (&c->c1.pid_persist);
+}
+#endif
+
+/*
+ * Set our wakeup to 0 seconds, so we will be rescheduled
+ * immediately.
+ */
+static inline void
+context_immediate_reschedule (struct context *c)
+{
+  c->c2.timeval.tv_sec = 0;    /* ZERO-TIMEOUT */
+  c->c2.timeval.tv_usec = 0;
+}
+
+static inline void
+context_reschedule_sec (struct context *c, int sec)
+{
+  if (sec < 0)
+    sec = 0;
+  if (sec < c->c2.timeval.tv_sec)
+    {
+      c->c2.timeval.tv_sec = sec;
+      c->c2.timeval.tv_usec = 0;
+    }
+}
+
+static inline struct link_socket_info *
+get_link_socket_info (struct context *c)
+{
+  if (c->c2.link_socket_info)
+    return c->c2.link_socket_info;
+  else
+    return &c->c2.link_socket->info;
+}
+
+static inline void
+register_activity (struct context *c, const int size)
+{
+  if (c->options.inactivity_timeout)
+    {
+      c->c2.inactivity_bytes += size;
+      if (c->c2.inactivity_bytes >= c->options.inactivity_minimum_bytes)
+	{
+	  c->c2.inactivity_bytes = 0;
+	  event_timeout_reset (&c->c2.inactivity_interval);
+	}
+    }
+}
+
+/*
+ * Return the io_wait() flags appropriate for
+ * a point-to-point tunnel.
+ */
+static inline unsigned int
+p2p_iow_flags (const struct context *c)
+{
+  unsigned int flags = (IOW_SHAPER|IOW_CHECK_RESIDUAL|IOW_FRAG|IOW_READ|IOW_WAIT_SIGNAL);
+  if (c->c2.to_link.len > 0)
+    flags |= IOW_TO_LINK;
+  if (c->c2.to_tun.len > 0)
+    flags |= IOW_TO_TUN;
+  return flags;
+}
+
+/*
+ * This is the core I/O wait function, used for all I/O waits except
+ * for TCP in server mode.
+ */
+static inline void
+io_wait (struct context *c, const unsigned int flags)
+{
+  void io_wait_dowork (struct context *c, const unsigned int flags);
+
+  if (c->c2.fast_io && (flags & (IOW_TO_TUN|IOW_TO_LINK|IOW_MBUF)))
+    {
+      /* fast path -- only for TUN/TAP/UDP writes */
+      unsigned int ret = 0;
+      if (flags & IOW_TO_TUN)
+	ret |= TUN_WRITE;
+      if (flags & (IOW_TO_LINK|IOW_MBUF))
+	ret |= SOCKET_WRITE;
+      c->c2.event_set_status = ret;
+    }
+  else
+    {
+      /* slow path */
+      io_wait_dowork (c, flags);
+    }
+}
+
+#define CONNECTION_ESTABLISHED(c) (get_link_socket_info(c)->connection_established)
+
+#endif /* EVENT_INLINE_H */