Moving files, first attempt at gcrypt compatibility, more interface

[tinc] / lib / node.c

diff --git a/lib/node.c b/lib/node.c
new file mode 100644 (file)
index 0000000..47d346d
--- /dev/null
+++ b/lib/node.c
@@ -0,0 +1,188 @@
+/*
+    node.c -- node tree management
+    Copyright (C) 2001-2002 Guus Sliepen <guus@sliepen.warande.net>,
+                  2001-2002 Ivo Timmermans <itimmermans@bigfoot.com>
+
+    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.
+
+    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; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id: node.c,v 1.1 2002/04/28 12:46:25 zarq Exp $
+*/
+
+#include "config.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+#include <avl_tree.h>
+#include "node.h"
+#include "netutl.h"
+#include "net.h"
+#include <utils.h>
+#include <xalloc.h>
+#include <hooks.h>
+
+#include "logging.h"
+
+#include "system.h"
+
+avl_tree_t *node_tree;         /* Known nodes, sorted by name */
+avl_tree_t *node_udp_tree;     /* Known nodes, sorted by address and port */
+
+node_t *myself;
+
+int node_compare(node_t *a, node_t *b)
+{
+  return strcmp(a->name, b->name);
+}
+
+int node_udp_compare(node_t *a, node_t *b)
+{
+  int result;
+cp
+  result = sockaddrcmp(&a->address, &b->address);
+
+  if(result)
+    return result;
+
+  return (a->name && b->name)?strcmp(a->name, b->name):0;
+}
+
+void init_nodes(void)
+{
+cp
+  node_tree = avl_alloc_tree((avl_compare_t)node_compare, NULL);
+  node_udp_tree = avl_alloc_tree((avl_compare_t)node_udp_compare, NULL);
+cp
+}
+
+void exit_nodes(void)
+{
+cp
+  avl_delete_tree(node_tree);
+  avl_delete_tree(node_udp_tree);
+cp
+}
+
+node_t *new_node(void)
+{
+  node_t *n = (node_t *)xmalloc_and_zero(sizeof(*n));
+cp
+  n->subnet_tree = new_subnet_tree();
+  n->edge_tree = new_edge_tree();
+  n->queue = list_alloc((list_action_t)free);
+cp
+  return n;
+}
+
+void free_node(node_t *n)
+{
+cp
+  if(n->queue)
+    list_delete_list(n->queue);
+  if(n->name)
+    free(n->name);
+  if(n->hostname)
+    free(n->hostname);
+  if(n->key)
+    free(n->key);
+  if(n->subnet_tree)
+    free_subnet_tree(n->subnet_tree);
+  if(n->edge_tree)
+    free_edge_tree(n->edge_tree);
+  free(n);
+cp
+}
+
+void node_add(node_t *n)
+{
+cp
+  avl_insert(node_tree, n);
+  avl_insert(node_udp_tree, n);
+
+  run_hooks("node-add", n);
+cp
+}
+
+void node_del(node_t *n)
+{
+  avl_node_t *node, *next;
+  edge_t *e;
+  subnet_t *s;
+cp
+  for(node = n->subnet_tree->head; node; node = next)
+    {
+      next = node->next;
+      s = (subnet_t *)node->data;
+      subnet_del(n, s);
+    }
+
+  for(node = n->subnet_tree->head; node; node = next)
+    {
+      next = node->next;
+      e = (edge_t *)node->data;
+      edge_del(e);
+    }
+cp
+  avl_delete(node_tree, n);
+  avl_delete(node_udp_tree, n);
+
+  run_hooks("node-del", n);
+cp
+}
+
+node_t *lookup_node(char *name)
+{
+  node_t n;
+cp
+  n.name = name;
+  return avl_search(node_tree, &n);
+}
+
+node_t *lookup_node_udp(sockaddr_t *sa)
+{
+  node_t n;
+cp
+  n.address = *sa;
+  n.name = NULL;
+
+  return avl_search(node_udp_tree, &n);
+}
+
+void dump_nodes(void)
+{
+  avl_node_t *node;
+  node_t *n;
+cp
+  log(0, TLOG_DEBUG,
+      _("Nodes:"));
+
+  for(node = node_tree->head; node; node = node->next)
+    {
+      n = (node_t *)node->data;
+#ifdef USE_OPENSSL
+      syslog(LOG_DEBUG, _(" %s at %s cipher %d digest %d maclength %d compression %d options %lx status %04x nexthop %s via %s"),
+             n->name, n->hostname, n->cipher?n->cipher->nid:0, n->digest?n->digest->type:0, n->maclength, n->compression, n->options,
+             n->status, n->nexthop?n->nexthop->name:"-", n->via?n->via->name:"-");
+#endif
+#ifdef USE_GCRYPT
+      syslog(LOG_DEBUG, _(" %s at %s cipher %d digest %d maclength %d compression %d options %lx status %04x nexthop %s via %s"),
+             n->name, n->hostname, n->cipher?-1:0, n->digest?-1:0, n->maclength, n->compression, n->options,
+             n->status, n->nexthop?n->nexthop->name:"-", n->via?n->via->name:"-");
+#endif
+    }
+    
+  syslog(LOG_DEBUG, _("End of nodes."));
+cp
+}