/*
connection.c -- connection list management
- Copyright (C) 2000-2009 Guus Sliepen <guus@tinc-vpn.org>,
+ Copyright (C) 2000-2013 Guus Sliepen <guus@tinc-vpn.org>,
2000-2005 Ivo Timmermans
2008 Max Rijevski <maksuf@gmail.com>
#include "system.h"
-#include "avl_tree.h"
+#include "list.h"
+#include "cipher.h"
#include "conf.h"
+#include "control_common.h"
#include "list.h"
#include "logger.h"
-#include "net.h" /* Don't ask. */
-#include "netutl.h"
+#include "rsa.h"
#include "subnet.h"
#include "utils.h"
#include "xalloc.h"
-avl_tree_t *connection_tree; /* Meta connections */
-connection_t *broadcast;
-
-static int connection_compare(const connection_t *a, const connection_t *b) {
- return a < b ? -1 : a == b ? 0 : 1;
-}
+list_t *connection_list;
+connection_t *everyone;
void init_connections(void) {
- connection_tree = avl_alloc_tree((avl_compare_t) connection_compare, (avl_action_t) free_connection);
- broadcast = new_connection();
- broadcast->name = xstrdup("everyone");
- broadcast->hostname = xstrdup("BROADCAST");
+ connection_list = list_alloc((list_action_t) free_connection);
+ everyone = new_connection();
+ everyone->name = xstrdup("everyone");
+ everyone->hostname = xstrdup("BROADCAST");
}
void exit_connections(void) {
- avl_delete_tree(connection_tree);
- free_connection(broadcast);
+ list_delete_list(connection_list);
+ free_connection(everyone);
}
connection_t *new_connection(void) {
- connection_t *c;
-
- c = xmalloc_and_zero(sizeof(connection_t));
-
- if(!c)
- return NULL;
-
- gettimeofday(&c->start, NULL);
-
- return c;
+ return xzalloc(sizeof(connection_t));
}
void free_connection(connection_t *c) {
- if(c->name)
- free(c->name);
+ if(!c) {
+ return;
+ }
- if(c->hostname)
- free(c->hostname);
+#ifndef DISABLE_LEGACY
+ cipher_close(c->incipher);
+ digest_close(c->indigest);
+ cipher_close(c->outcipher);
+ digest_close(c->outdigest);
+ rsa_free(c->rsa);
+#endif
- if(c->inkey)
- free(c->inkey);
+ sptps_stop(&c->sptps);
+ ecdsa_free(c->ecdsa);
- if(c->outkey)
- free(c->outkey);
+ free(c->hischallenge);
- if(c->inctx) {
- EVP_CIPHER_CTX_cleanup(c->inctx);
- free(c->inctx);
- }
+ buffer_clear(&c->inbuf);
+ buffer_clear(&c->outbuf);
- if(c->outctx) {
- EVP_CIPHER_CTX_cleanup(c->outctx);
- free(c->outctx);
- }
+ io_del(&c->io);
- if(c->mychallenge)
- free(c->mychallenge);
+ if(c->socket > 0) {
+ closesocket(c->socket);
+ }
- if(c->hischallenge)
- free(c->hischallenge);
+ free(c->name);
+ free(c->hostname);
- if(c->config_tree)
+ if(c->config_tree) {
exit_configuration(&c->config_tree);
-
- if(c->outbuf)
- free(c->outbuf);
-
- if(c->rsa_key)
- RSA_free(c->rsa_key);
+ }
free(c);
}
void connection_add(connection_t *c) {
- avl_insert(connection_tree, c);
+ list_insert_tail(connection_list, c);
}
void connection_del(connection_t *c) {
- avl_delete(connection_tree, c);
+ list_delete(connection_list, 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);
+bool dump_connections(connection_t *cdump) {
+ for list_each(connection_t, c, connection_list) {
+ send_request(cdump, "%d %d %s %s %x %d %x",
+ CONTROL, REQ_DUMP_CONNECTIONS,
+ c->name, c->hostname, c->options, c->socket,
+ bitfield_to_int(&c->status, sizeof(c->status)));
}
- logger(LOG_DEBUG, "End of connections.");
+ return send_request(cdump, "%d %d", CONTROL, REQ_DUMP_CONNECTIONS);
}