/*
connection.c -- connection list management
- Copyright (C) 2000-2012 Guus Sliepen <guus@tinc-vpn.org>,
- 2000-2005 Ivo Timmermans
- 2008 Max Rijevski <maksuf@gmail.com>
+ Copyright (C) 2000-2013 Guus Sliepen <guus@meshlink.io>
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
#include "system.h"
-#include "avl_tree.h"
+#include "list.h"
#include "conf.h"
+#include "connection.h"
+#include "list.h"
#include "logger.h"
-#include "subnet.h"
+#include "meshlink_internal.h"
#include "utils.h"
#include "xalloc.h"
-avl_tree_t *connection_tree; /* Meta connections */
-connection_t *everyone;
-
-static int connection_compare(const connection_t *a, const connection_t *b) {
- return a < b ? -1 : a == b ? 0 : 1;
+void init_connections(meshlink_handle_t *mesh) {
+ mesh->connections = list_alloc((list_action_t) free_connection);
+ mesh->everyone = new_connection();
+ mesh->everyone->name = xstrdup("mesh->everyone");
+ mesh->everyone->hostname = xstrdup("BROADCAST");
}
-void init_connections(void) {
- connection_tree = avl_alloc_tree((avl_compare_t) connection_compare, (avl_action_t) free_connection);
- everyone = new_connection();
- everyone->name = xstrdup("everyone");
- everyone->hostname = xstrdup("BROADCAST");
-}
+void exit_connections(meshlink_handle_t *mesh) {
+ if(mesh->connections)
+ list_delete_list(mesh->connections);
-void exit_connections(void) {
- avl_delete_tree(connection_tree);
- free_connection(everyone);
+ free_connection(mesh->everyone);
+
+ mesh->connections = NULL;
+ mesh->everyone = NULL;
}
connection_t *new_connection(void) {
- connection_t *c;
-
- c = xmalloc_and_zero(sizeof(connection_t));
+ return xzalloc(sizeof(connection_t));
+}
+void free_connection(connection_t *c) {
if(!c)
- return NULL;
+ return;
- gettimeofday(&c->start, NULL);
+ sptps_stop(&c->sptps);
+ ecdsa_free(c->ecdsa);
- return c;
-}
+ buffer_clear(&c->inbuf);
+ buffer_clear(&c->outbuf);
-void free_connection_partially(connection_t *c) {
- free(c->inkey);
- free(c->outkey);
- free(c->mychallenge);
- free(c->hischallenge);
- free(c->outbuf);
-
- c->inkey = NULL;
- c->outkey = NULL;
- c->mychallenge = NULL;
- c->hischallenge = NULL;
- c->outbuf = NULL;
-
- c->buflen = 0;
- c->reqlen = 0;
- c->tcplen = 0;
- c->allow_request = 0;
- c->outbuflen = 0;
- c->outbufsize = 0;
- c->outbufstart = 0;
-
- if(c->inctx) {
- EVP_CIPHER_CTX_cleanup(c->inctx);
- free(c->inctx);
- c->inctx = NULL;
- }
-
- if(c->outctx) {
- EVP_CIPHER_CTX_cleanup(c->outctx);
- free(c->outctx);
- c->outctx = NULL;
- }
-
- if(c->rsa_key) {
- RSA_free(c->rsa_key);
- c->rsa_key = NULL;
- }
-}
+ if(c->io.cb)
+ abort();
-void free_connection(connection_t *c) {
- free_connection_partially(c);
+ if(c->socket > 0)
+ closesocket(c->socket);
free(c->name);
free(c->hostname);
free(c);
}
-void connection_add(connection_t *c) {
- avl_insert(connection_tree, c);
-}
-
-void connection_del(connection_t *c) {
- avl_delete(connection_tree, c);
+void connection_add(meshlink_handle_t *mesh, connection_t *c) {
+ c->mesh = mesh;
+ list_insert_tail(mesh->connections, c);
}
-void dump_connections(void) {
- avl_node_t *node;
- connection_t *c;
-
- logger(LOG_DEBUG, "Connections:");
-
- for(node = connection_tree->head; node; node = node->next) {
- c = node->data;
- logger(LOG_DEBUG, " %s at %s options %x socket %d status %04x outbuf %d/%d/%d",
- c->name, c->hostname, c->options, c->socket, bitfield_to_int(&c->status, sizeof c->status),
- c->outbufsize, c->outbufstart, c->outbuflen);
- }
-
- logger(LOG_DEBUG, "End of connections.");
+void connection_del(meshlink_handle_t *mesh, connection_t *c) {
+ io_del(&mesh->loop, &c->io);
+ list_delete(mesh->connections, c);
}