Imported Upstream version 2.3_rc1

1 files changed, 0 insertions, 526 deletions

diff --git a/pool.c b/pool.c
deleted file mode 100644
index 84333df..0000000
--- a/pool.c
+++ /dev/null
@@ -1,526 +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
- */
-
-#include "syshead.h"
-
-#include "pool.h"
-#include "buffer.h"
-#include "error.h"
-#include "socket.h"
-#include "otime.h"
-
-#include "memdbg.h"
-
-#if P2MP
-
-static void
-ifconfig_pool_entry_free (struct ifconfig_pool_entry *ipe, bool hard)
-{
-  ipe->in_use = false;
-  if (hard && ipe->common_name)
-    {
-      free (ipe->common_name);
-      ipe->common_name = NULL;
-    }
-  if (hard)
-    ipe->last_release = 0;
-  else
-    ipe->last_release = now;
-}
-
-static int
-ifconfig_pool_find (struct ifconfig_pool *pool, const char *common_name)
-{
-  int i;
-  time_t earliest_release = 0;
-  int previous_usage = -1;
-  int new_usage = -1;
-
-  for (i = 0; i < pool->size; ++i)
-    {
-      struct ifconfig_pool_entry *ipe = &pool->list[i];
-      if (!ipe->in_use)
-	{
-	  /*
-	   * If duplicate_cn mode, take first available IP address
-	   */
-	  if (pool->duplicate_cn)
-	    {
-	      new_usage = i;
-	      break;
-	    }
-
-	  /*
-	   * Keep track of the unused IP address entry which
-	   * was released earliest.
-	   */
-	  if ((new_usage == -1 || ipe->last_release < earliest_release) && !ipe->fixed)
-	    {
-	      earliest_release = ipe->last_release;
-	      new_usage = i;
-	    }
-
-	  /*
-	   * Keep track of a possible allocation to us
-	   * from an earlier session.
-	   */
-	  if (previous_usage < 0
-	      && common_name
-	      && ipe->common_name
-	      && !strcmp (common_name, ipe->common_name))
-	    previous_usage = i;
-
-	}
-    }
-
-  if (previous_usage >= 0)
-    return previous_usage;
-
-  if (new_usage >= 0)
-    return new_usage;
-
-  return -1;
-}
-
-/*
- * Verify start/end range
- */
-bool
-ifconfig_pool_verify_range (const int msglevel, const in_addr_t start, const in_addr_t end)
-{
-  struct gc_arena gc = gc_new ();
-  bool ret = true;
-
-  if (start > end)
-    {
-      msg (msglevel, "--ifconfig-pool start IP [%s] is greater than end IP [%s]",
-	   print_in_addr_t (start, 0, &gc),
-	   print_in_addr_t (end, 0, &gc));
-      ret = false;
-    }
-  if (end - start >= IFCONFIG_POOL_MAX)
-    {
-      msg (msglevel, "--ifconfig-pool address range is too large [%s -> %s].  Current maximum is %d addresses, as defined by IFCONFIG_POOL_MAX variable.",
-	   print_in_addr_t (start, 0, &gc),
-	   print_in_addr_t (end, 0, &gc),
-	   IFCONFIG_POOL_MAX);
-      ret = false;
-    }
-  gc_free (&gc);
-  return ret;
-}
-
-struct ifconfig_pool *
-ifconfig_pool_init (int type, in_addr_t start, in_addr_t end, const bool duplicate_cn)
-{
-  struct gc_arena gc = gc_new ();
-  struct ifconfig_pool *pool = NULL;
-
-  ASSERT (start <= end && end - start < IFCONFIG_POOL_MAX);
-  ALLOC_OBJ_CLEAR (pool, struct ifconfig_pool);
-
-  pool->type = type;
-  pool->duplicate_cn = duplicate_cn;
-
-  switch (type)
-    {
-    case IFCONFIG_POOL_30NET:
-      pool->base = start & ~3;
-      pool->size = (((end | 3) + 1) - pool->base) >> 2;
-      break;
-    case IFCONFIG_POOL_INDIV:
-      pool->base = start;
-      pool->size = end - start + 1;
-      break;
-    default:
-      ASSERT (0);
-    }
-
-  ALLOC_ARRAY_CLEAR (pool->list, struct ifconfig_pool_entry, pool->size);
-
-  msg (D_IFCONFIG_POOL, "IFCONFIG POOL: base=%s size=%d",
-       print_in_addr_t (pool->base, 0, &gc),
-       pool->size);
-
-  gc_free (&gc);
-  return pool;
-}
-
-void
-ifconfig_pool_free (struct ifconfig_pool *pool)
-{
-  if (pool)
-    {
-      int i;
-      for (i = 0; i < pool->size; ++i)
-	ifconfig_pool_entry_free (&pool->list[i], true);
-      free (pool->list);
-      free (pool);
-    }
-}
-
-ifconfig_pool_handle
-ifconfig_pool_acquire (struct ifconfig_pool *pool, in_addr_t *local, in_addr_t *remote, const char *common_name)
-{
-  int i;
-
-  i = ifconfig_pool_find (pool, common_name);
-  if (i >= 0)
-    {
-      struct ifconfig_pool_entry *ipe = &pool->list[i];
-      ASSERT (!ipe->in_use);
-      ifconfig_pool_entry_free (ipe, true);
-      ipe->in_use = true;
-      if (common_name)
-	ipe->common_name = string_alloc (common_name, NULL);
-
-      switch (pool->type)
-	{
-	case IFCONFIG_POOL_30NET:
-	  {
-	    in_addr_t b = pool->base + (i << 2);
-	    *local = b + 1;
-	    *remote = b + 2;
-	    break;
-	  }
-	case IFCONFIG_POOL_INDIV:
-	  {
-	    in_addr_t b = pool->base + i;
-	    *local = 0;
-	    *remote = b;
-	    break;
-	  }
-	default:
-	  ASSERT (0);
-	}
-    }
-  return i;
-}
-
-bool
-ifconfig_pool_release (struct ifconfig_pool* pool, ifconfig_pool_handle hand, const bool hard)
-{
-  bool ret = false;
-  if (pool && hand >= 0 && hand < pool->size)
-    {
-      ifconfig_pool_entry_free (&pool->list[hand], hard);
-      ret = true;
-    }
-  return ret;
-}
-
-/*
- * private access functions
- */
-
-static ifconfig_pool_handle
-ifconfig_pool_ip_base_to_handle (const struct ifconfig_pool* pool, const in_addr_t addr)
-{
-  ifconfig_pool_handle ret = -1;
-
-  switch (pool->type)
-    {
-    case IFCONFIG_POOL_30NET:
-      {
-	ret = (addr - pool->base) >> 2;
-	break;
-      }
-    case IFCONFIG_POOL_INDIV:
-      {
-	ret = (addr - pool->base);
-	break;
-      }
-    default:
-      ASSERT (0);
-    }
-
-  if (ret < 0 || ret >= pool->size)
-    ret = -1;
-
-  return ret;
-}
-
-static in_addr_t
-ifconfig_pool_handle_to_ip_base (const struct ifconfig_pool* pool, ifconfig_pool_handle hand)
-{
-  in_addr_t ret = 0;
-
-  if (hand >= 0 && hand < pool->size)
-    {
-      switch (pool->type)
-	{
-	case IFCONFIG_POOL_30NET:
-	  {
-	    ret = pool->base + (hand << 2);;
-	    break;
-	  }
-	case IFCONFIG_POOL_INDIV:
-	  {
-	    ret = pool->base + hand;
-	    break;
-	  }
-	default:
-	  ASSERT (0);
-	}
-    }
-
-  return ret;
-}
-
-static void
-ifconfig_pool_set (struct ifconfig_pool* pool, const char *cn, const in_addr_t addr, const bool fixed)
-{
-  ifconfig_pool_handle h = ifconfig_pool_ip_base_to_handle (pool, addr);
-  if (h >= 0)
-    {
-      struct ifconfig_pool_entry *e = &pool->list[h];
-      ifconfig_pool_entry_free (e, true);
-      e->in_use = false;
-      e->common_name = string_alloc (cn, NULL);
-      e->last_release = now;
-      e->fixed = fixed;
-    }
-}
-
-static void
-ifconfig_pool_list (const struct ifconfig_pool* pool, struct status_output *out)
-{
-  if (pool && out)
-    {
-      struct gc_arena gc = gc_new ();
-      int i;
-
-      for (i = 0; i < pool->size; ++i)
-	{
-	  const struct ifconfig_pool_entry *e = &pool->list[i];
-	  if (e->common_name)
-	    {
-	      const in_addr_t ip = ifconfig_pool_handle_to_ip_base (pool, i);
-	      status_printf (out, "%s,%s",
-			     e->common_name,
-			     print_in_addr_t (ip, 0, &gc));
-	    }
-	}
-      gc_free (&gc);
-    }
-}
-
-static void
-ifconfig_pool_msg (const struct ifconfig_pool* pool, int msglevel)
-{
-  struct status_output *so = status_open (NULL, 0, msglevel, NULL, 0);
-  ASSERT (so);
-  status_printf (so, "IFCONFIG POOL LIST");
-  ifconfig_pool_list (pool, so);
-  status_close (so);
-}
-
-/*
- * Deal with reading/writing the ifconfig pool database to a file
- */
-
-struct ifconfig_pool_persist *
-ifconfig_pool_persist_init (const char *filename, int refresh_freq)
-{
-  struct ifconfig_pool_persist *ret;
-
-  ASSERT (filename);
-
-  ALLOC_OBJ_CLEAR (ret, struct ifconfig_pool_persist);
-  if (refresh_freq > 0)
-    {
-      ret->fixed = false;
-      ret->file = status_open (filename, refresh_freq, -1, NULL, STATUS_OUTPUT_READ|STATUS_OUTPUT_WRITE);
-    }
-  else
-    {
-      ret->fixed = true;
-      ret->file = status_open (filename, 0, -1, NULL, STATUS_OUTPUT_READ);
-    }
-  return ret;
-}
-
-void
-ifconfig_pool_persist_close (struct ifconfig_pool_persist *persist)
-{
-  if (persist)
-    {
-      if (persist->file)
-	status_close (persist->file);
-      free (persist);
-    }
-}
-
-bool
-ifconfig_pool_write_trigger (struct ifconfig_pool_persist *persist)
-{
-  if (persist->file)
-    return status_trigger (persist->file);
-  else
-    return false;
-}
-
-void
-ifconfig_pool_read (struct ifconfig_pool_persist *persist, struct ifconfig_pool *pool)
-{
-  const int buf_size = 128;
-
-  update_time ();
-  if (persist && persist->file && pool)
-    {
-      struct gc_arena gc = gc_new ();
-      struct buffer in = alloc_buf_gc (256, &gc);
-      char *cn_buf;
-      char *ip_buf;
-      int line = 0;
-
-      ALLOC_ARRAY_CLEAR_GC (cn_buf, char, buf_size, &gc);
-      ALLOC_ARRAY_CLEAR_GC (ip_buf, char, buf_size, &gc);
-
-      while (true)
-	{
-	  ASSERT (buf_init (&in, 0));
-	  if (!status_read (persist->file, &in))
-	    break;
-	  ++line;
-	  if (BLEN (&in))
-	    {
-	      int c = *BSTR(&in);
-	      if (c == '#' || c == ';')
-		continue;
-	      if (buf_parse (&in, ',', cn_buf, buf_size)
-		  && buf_parse (&in, ',', ip_buf, buf_size))
-		{
-		  bool succeeded;
-		  const in_addr_t addr = getaddr (GETADDR_HOST_ORDER, ip_buf, 0, &succeeded, NULL);
-		  if (succeeded)
-		    {
-		      ifconfig_pool_set (pool, cn_buf, addr, persist->fixed);
-		    }
-		}
-	    }
-	}
-
-      ifconfig_pool_msg (pool, D_IFCONFIG_POOL);
-  
-      gc_free (&gc);
-    }
-}
-
-void
-ifconfig_pool_write (struct ifconfig_pool_persist *persist, const struct ifconfig_pool *pool)
-{
-  if (persist && persist->file && (status_rw_flags (persist->file) & STATUS_OUTPUT_WRITE) && pool)
-    {
-      status_reset (persist->file);
-      ifconfig_pool_list (pool, persist->file);
-      status_flush (persist->file);
-    }
-}
-
-/*
- * TESTING ONLY
- */
-
-#ifdef IFCONFIG_POOL_TEST
-
-#define DUP_CN
-
-void
-ifconfig_pool_test (in_addr_t start, in_addr_t end)
-{
-  struct gc_arena gc = gc_new ();
-  struct ifconfig_pool *p = ifconfig_pool_init (IFCONFIG_POOL_30NET, start, end); 
-  /*struct ifconfig_pool *p = ifconfig_pool_init (IFCONFIG_POOL_INDIV, start, end);*/
-  ifconfig_pool_handle array[256];
-  int i;
-
-  CLEAR (array);
-
-  msg (M_INFO | M_NOPREFIX, "************ 1");
-  for (i = 0; i < (int) SIZE (array); ++i)
-    {
-      char *cn;
-      ifconfig_pool_handle h;
-      in_addr_t local, remote;
-      char buf[256];
-      openvpn_snprintf (buf, sizeof(buf), "common-name-%d", i);
-#ifdef DUP_CN
-      cn = NULL;
-#else
-      cn = buf;
-#endif
-      h = ifconfig_pool_acquire (p, &local, &remote, cn);
-      if (h < 0)
-	break;
-      msg (M_INFO | M_NOPREFIX, "IFCONFIG_POOL TEST pass 1: l=%s r=%s cn=%s",
-	   print_in_addr_t (local, 0, &gc),
-	   print_in_addr_t (remote, 0, &gc),
-	   cn);
-      array[i] = h;
-      
-    }
-
-  msg (M_INFO | M_NOPREFIX, "************* 2");
-  for (i = (int) SIZE (array) / 16; i < (int) SIZE (array) / 8; ++i)
-    {
-      msg (M_INFO, "Attempt to release %d cn=%s", array[i], p->list[i].common_name);
-      if (!ifconfig_pool_release (p, array[i]))
-	break;
-      msg (M_INFO, "Succeeded");
-    }
-
-  CLEAR (array);
-
-  msg (M_INFO | M_NOPREFIX, "**************** 3");
-  for (i = 0; i < (int) SIZE (array); ++i)
-    {
-      char *cn;
-      ifconfig_pool_handle h;
-      in_addr_t local, remote;
-      char buf[256];
-      snprintf (buf, sizeof(buf), "common-name-%d", i+24); 
-#ifdef DUP_CN
-      cn = NULL;
-#else
-      cn = buf;
-#endif
-      h = ifconfig_pool_acquire (p, &local, &remote, cn);
-      if (h < 0)
-	break;
-      msg (M_INFO | M_NOPREFIX, "IFCONFIG_POOL TEST pass 3: l=%s r=%s cn=%s",
-	   print_in_addr_t (local, 0, &gc),
-	   print_in_addr_t (remote, 0, &gc),
-	   cn);
-      array[i] = h;
-      
-    }
-
-  ifconfig_pool_free (p);
-  gc_free (&gc);
-}
-
-#endif
-
-#endif