Imported Upstream version 2.3_rc1

1 files changed, 0 insertions, 450 deletions

diff --git a/multi.h b/multi.h
deleted file mode 100644
index 08964a2..0000000
--- a/multi.h
+++ /dev/null
@@ -1,450 +0,0 @@
-/*
- *  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 MULTI_H
-#define MULTI_H
-
-#if P2MP_SERVER
-
-#include "init.h"
-#include "forward.h"
-#include "mroute.h"
-#include "mbuf.h"
-#include "list.h"
-#include "schedule.h"
-#include "pool.h"
-#include "mudp.h"
-#include "mtcp.h"
-#include "perf.h"
-
-/*
- * Walk (don't run) through the routing table,
- * deleting old entries, and possibly multi_instance
- * structs as well which have been marked for deletion.
- */
-struct multi_reap
-{
-  int bucket_base;
-  int buckets_per_pass;
-  time_t last_call;
-};
-
-/*
- * One multi_instance object per client instance.
- */
-struct multi_instance {
-  struct schedule_entry se;    /* this must be the first element of the structure */
-  struct gc_arena gc;
-  bool defined;
-  bool halt;
-  int refcount;
-  int route_count;             /* number of routes (including cached routes) owned by this instance */
-  time_t created;
-  struct timeval wakeup;       /* absolute time */
-  struct mroute_addr real;
-  ifconfig_pool_handle vaddr_handle;
-  const char *msg_prefix;
-
-  /* queued outgoing data in Server/TCP mode */
-  unsigned int tcp_rwflags;
-  struct mbuf_set *tcp_link_out_deferred;
-  bool socket_set_called;
-
-  in_addr_t reporting_addr;       /* IP address shown in status listing */
-
-  bool did_open_context;
-  bool did_real_hash;
-  bool did_iter;
-#ifdef MANAGEMENT_DEF_AUTH
-  bool did_cid_hash;
-  struct buffer_list *cc_config;
-#endif
-  bool connection_established_flag;
-  bool did_iroutes;
-  int n_clients_delta; /* added to multi_context.n_clients when instance is closed */
-
-  struct context context;
-};
-
-/*
- * One multi_context object per server daemon thread.
- */
-struct multi_context {
-# define MC_UNDEF                      0
-# define MC_SINGLE_THREADED            (1<<0)
-# define MC_MULTI_THREADED_MASTER      (1<<1)
-# define MC_MULTI_THREADED_WORKER      (1<<2)
-# define MC_MULTI_THREADED_SCHEDULER   (1<<3)
-# define MC_WORK_THREAD                (MC_MULTI_THREADED_WORKER|MC_MULTI_THREADED_SCHEDULER)
-  int thread_mode;
-
-  struct hash *hash;   /* client instances indexed by real address */
-  struct hash *vhash;  /* client instances indexed by virtual address */
-  struct hash *iter;   /* like real address hash but optimized for iteration */
-  struct schedule *schedule;
-  struct mbuf_set *mbuf;
-  struct multi_tcp *mtcp;
-  struct ifconfig_pool *ifconfig_pool;
-  struct frequency_limit *new_connection_limiter;
-  struct mroute_helper *route_helper;
-  struct multi_reap *reaper;
-  struct mroute_addr local;
-  bool enable_c2c;
-  int max_clients;
-  int tcp_queue_limit;
-  int status_file_version;
-  int n_clients; /* current number of authenticated clients */
-
-#ifdef MANAGEMENT_DEF_AUTH
-  struct hash *cid_hash;
-  unsigned long cid_counter;
-#endif
-
-  struct multi_instance *pending;
-  struct multi_instance *earliest_wakeup;
-  struct multi_instance **mpp_touched;
-  struct context_buffers *context_buffers;
-  time_t per_second_trigger;
-
-  struct context top;
-};
-
-/*
- * Host route
- */
-struct multi_route
-{
-  struct mroute_addr addr;
-  struct multi_instance *instance;
-
-# define MULTI_ROUTE_CACHE   (1<<0)
-# define MULTI_ROUTE_AGEABLE (1<<1)
-  unsigned int flags;
-
-  unsigned int cache_generation;
-  time_t last_reference;
-};
-
-/*
- * top level function, called by openvpn.c
- */
-void tunnel_server (struct context *top);
-
-const char *multi_instance_string (const struct multi_instance *mi, bool null, struct gc_arena *gc);
-
-/*
- * Called by mtcp.c, mudp.c, or other (to be written) protocol drivers
- */
-
-void multi_init (struct multi_context *m, struct context *t, bool tcp_mode, int thread_mode);
-void multi_uninit (struct multi_context *m);
-
-void multi_top_init (struct multi_context *m, const struct context *top, const bool alloc_buffers);
-void multi_top_free (struct multi_context *m);
-
-struct multi_instance *multi_create_instance (struct multi_context *m, const struct mroute_addr *real);
-void multi_close_instance (struct multi_context *m, struct multi_instance *mi, bool shutdown);
-
-bool multi_process_timeout (struct multi_context *m, const unsigned int mpp_flags);
-
-#define MPP_PRE_SELECT             (1<<0)
-#define MPP_CONDITIONAL_PRE_SELECT (1<<1)
-#define MPP_CLOSE_ON_SIGNAL        (1<<2)
-#define MPP_RECORD_TOUCH           (1<<3)
-bool multi_process_post (struct multi_context *m, struct multi_instance *mi, const unsigned int flags);
-
-bool multi_process_incoming_link (struct multi_context *m, struct multi_instance *instance, const unsigned int mpp_flags);
-bool multi_process_incoming_tun (struct multi_context *m, const unsigned int mpp_flags);
-
-void multi_process_drop_outgoing_tun (struct multi_context *m, const unsigned int mpp_flags);
-
-void multi_print_status (struct multi_context *m, struct status_output *so, const int version);
-
-struct multi_instance *multi_get_queue (struct mbuf_set *ms);
-
-void multi_add_mbuf (struct multi_context *m,
-		     struct multi_instance *mi,
-		     struct mbuf_buffer *mb);
-
-void multi_ifconfig_pool_persist (struct multi_context *m, bool force);
-
-bool multi_process_signal (struct multi_context *m);
-
-void multi_close_instance_on_signal (struct multi_context *m, struct multi_instance *mi);
-
-void init_management_callback_multi (struct multi_context *m);
-void uninit_management_callback_multi (struct multi_context *m);
-
-/*
- * Return true if our output queue is not full
- */
-static inline bool
-multi_output_queue_ready (const struct multi_context *m,
-			  const struct multi_instance *mi)
-{
-  if (mi->tcp_link_out_deferred)
-    return mbuf_len (mi->tcp_link_out_deferred) <= m->tcp_queue_limit;
-  else
-    return true;
-}
-
-/*
- * Determine which instance has pending output
- * and prepare the output for sending in
- * the to_link buffer.
- */
-static inline struct multi_instance *
-multi_process_outgoing_link_pre (struct multi_context *m)
-{
-  struct multi_instance *mi = NULL;
-
-  if (m->pending)
-    mi = m->pending;
-  else if (mbuf_defined (m->mbuf))
-    mi = multi_get_queue (m->mbuf);
-  return mi;
-}
-
-/*
- * Per-client route quota management
- */
-
-void route_quota_exceeded (const struct multi_context *m, const struct multi_instance *mi);
-
-static inline void
-route_quota_inc (struct multi_instance *mi)
-{
-  ++mi->route_count;
-}
-
-static inline void
-route_quota_dec (struct multi_instance *mi)
-{
-  --mi->route_count;
-}
-
-/* can we add a new route? */
-static inline bool
-route_quota_test (const struct multi_context *m, const struct multi_instance *mi)
-{
-  if (mi->route_count >= mi->context.options.max_routes_per_client)
-    {
-      route_quota_exceeded (m, mi);
-      return false;
-    }
-  else
-    return true;
-}
-
-/*
- * Instance reference counting
- */
-
-static inline void
-multi_instance_inc_refcount (struct multi_instance *mi)
-{
-  ++mi->refcount;
-}
-
-static inline void
-multi_instance_dec_refcount (struct multi_instance *mi)
-{
-  if (--mi->refcount <= 0)
-    {
-      gc_free (&mi->gc);
-      free (mi);
-    }
-}
-
-static inline void
-multi_route_del (struct multi_route *route)
-{
-  struct multi_instance *mi = route->instance;
-  route_quota_dec (mi);
-  multi_instance_dec_refcount (mi);
-  free (route);
-}
-
-static inline bool
-multi_route_defined (const struct multi_context *m,
-		     const struct multi_route *r)
-{
-  if (r->instance->halt)
-    return false;
-  else if ((r->flags & MULTI_ROUTE_CACHE)
-	   && r->cache_generation != m->route_helper->cache_generation)
-    return false;
-  else if ((r->flags & MULTI_ROUTE_AGEABLE)
-	   && r->last_reference + m->route_helper->ageable_ttl_secs < now)
-    return false;
-  else
-    return true;
-}
-
-/*
- * Set a msg() function prefix with our current client instance ID.
- */
-
-static inline void
-set_prefix (struct multi_instance *mi)
-{
-#ifdef MULTI_DEBUG_EVENT_LOOP
-  if (mi->msg_prefix)
-    printf ("[%s]\n", mi->msg_prefix);
-#endif
-  msg_set_prefix (mi->msg_prefix);
-}
-
-static inline void
-clear_prefix (void)
-{
-#ifdef MULTI_DEBUG_EVENT_LOOP
-  printf ("[NULL]\n");
-#endif
-  msg_set_prefix (NULL);
-}
-
-/*
- * Instance Reaper
- *
- * Reaper constants.  The reaper is the process where the virtual address
- * and virtual route hash table is scanned for dead entries which are
- * then removed.  The hash table could potentially be quite large, so we
- * don't want to reap in a single pass.
- */
-
-#define REAP_MAX_WAKEUP   10  /* Do reap pass at least once per n seconds */
-#define REAP_DIVISOR     256  /* How many passes to cover whole hash table */
-#define REAP_MIN          16  /* Minimum number of buckets per pass */
-#define REAP_MAX        1024  /* Maximum number of buckets per pass */
-
-/*
- * Mark a cached host route for deletion after this
- * many seconds without any references.
- */
-#define MULTI_CACHE_ROUTE_TTL 60
-
-static inline void
-multi_reap_process (const struct multi_context *m)
-{
-  void multi_reap_process_dowork (const struct multi_context *m);
-  if (m->reaper->last_call != now)
-    multi_reap_process_dowork (m);
-}
-
-static inline void
-multi_process_per_second_timers (struct multi_context *m)
-{
-  if (m->per_second_trigger != now)
-    {
-      void multi_process_per_second_timers_dowork (struct multi_context *m);
-      multi_process_per_second_timers_dowork (m);
-      m->per_second_trigger = now;
-    }
-}
-
-/*
- * Compute earliest timeout expiry from the set of
- * all instances.  Output:
- *
- * m->earliest_wakeup : instance needing the earliest service.
- * dest               : earliest timeout as a delta in relation
- *                      to current time.
- */
-static inline void
-multi_get_timeout (struct multi_context *m, struct timeval *dest)
-{
-  struct timeval tv, current;
-
-  CLEAR (tv);
-  m->earliest_wakeup = (struct multi_instance *) schedule_get_earliest_wakeup (m->schedule, &tv);
-  if (m->earliest_wakeup)
-    {
-      ASSERT (!openvpn_gettimeofday (&current, NULL));
-      tv_delta (dest, &current, &tv);
-      if (dest->tv_sec >= REAP_MAX_WAKEUP)
-	{
-	  m->earliest_wakeup = NULL;
-	  dest->tv_sec = REAP_MAX_WAKEUP;
-	  dest->tv_usec = 0;
-	}
-    }
-  else
-    {
-      dest->tv_sec = REAP_MAX_WAKEUP;
-      dest->tv_usec = 0;
-    }
-}
-
-/*
- * Send a packet to TUN/TAP interface.
- */
-static inline bool
-multi_process_outgoing_tun (struct multi_context *m, const unsigned int mpp_flags)
-{
-  struct multi_instance *mi = m->pending;
-  bool ret = true;
-
-  ASSERT (mi);
-#ifdef MULTI_DEBUG_EVENT_LOOP
-  printf ("%s -> TUN len=%d\n",
-	  id(mi),
-	  mi->context.c2.to_tun.len);
-#endif
-  set_prefix (mi);
-  process_outgoing_tun (&mi->context);
-  ret = multi_process_post (m, mi, mpp_flags);
-  clear_prefix ();
-  return ret;
-}
-
-static inline bool
-multi_process_outgoing_link_dowork (struct multi_context *m, struct multi_instance *mi, const unsigned int mpp_flags)
-{
-  bool ret = true;
-  set_prefix (mi);
-  process_outgoing_link (&mi->context);
-  ret = multi_process_post (m, mi, mpp_flags);
-  clear_prefix ();
-  return ret;
-}
-
-/*
- * Check for signals.
- */
-#define MULTI_CHECK_SIG(m) EVENT_LOOP_CHECK_SIGNAL (&(m)->top, multi_process_signal, (m))
-
-static inline void
-multi_set_pending (struct multi_context *m, struct multi_instance *mi)
-{
-  m->pending = mi;
-}
-
-static inline void
-multi_release_io_lock (struct multi_context *m)
-{
-}
-
-#endif /* P2MP_SERVER */
-#endif /* MULTI_H */