/*
protocol_misc.c -- handle the meta-protocol, miscellaneous functions
- Copyright (C) 1999-2002 Ivo Timmermans <ivo@o2w.nl>,
- 2000-2002 Guus Sliepen <guus@sliepen.eu.org>
+ Copyright (C) 2014-2017 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
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: protocol_misc.c,v 1.1.4.4 2002/06/21 10:11:19 guus Exp $
+ 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.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#include "config.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <errno.h>
-
-#include <utils.h>
+#include "system.h"
#include "conf.h"
+#include "connection.h"
+#include "logger.h"
+#include "meshlink_internal.h"
+#include "meta.h"
#include "net.h"
#include "netutl.h"
#include "protocol.h"
-#include "meta.h"
-#include "connection.h"
+#include "utils.h"
-#include "system.h"
+int maxoutbufsize = 0;
/* Status and error notification routines */
-int send_status(connection_t *c, int statusno, char *statusstring)
-{
-cp
- if(!statusstring)
- statusstring = status_text[statusno];
-cp
- return send_request(c, "%d %d %s", STATUS, statusno, statusstring);
-}
+bool status_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
+ assert(request);
+ assert(*request);
-int status_h(connection_t *c)
-{
- int statusno;
- char statusstring[MAX_STRING_SIZE];
-cp
- if(sscanf(c->buffer, "%*d %d "MAX_STRING, &statusno, statusstring) != 2)
- {
- syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "STATUS",
- c->name, c->hostname);
- return -1;
- }
-
- if(debug_lvl >= DEBUG_STATUS)
- {
- syslog(LOG_NOTICE, _("Status message from %s (%s): %s: %s"),
- c->name, c->hostname, status_text[statusno], statusstring);
- }
-
-cp
- return 0;
-}
+ int statusno;
+ char statusstring[MAX_STRING_SIZE];
-int send_error(connection_t *c, int err, char *errstring)
-{
-cp
- if(!errstring)
- errstring = strerror(err);
- return send_request(c, "%d %d %s", ERROR, err, errstring);
-}
+ if(sscanf(request, "%*d %d " MAX_STRING, &statusno, statusstring) != 2) {
+ logger(mesh, MESHLINK_ERROR, "Got bad %s from %s", "STATUS", c->name);
+ return false;
+ }
-int error_h(connection_t *c)
-{
- int err;
- char errorstring[MAX_STRING_SIZE];
-cp
- if(sscanf(c->buffer, "%*d %d "MAX_STRING, &err, errorstring) != 2)
- {
- syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "ERROR",
- c->name, c->hostname);
- return -1;
- }
-
- if(debug_lvl >= DEBUG_ERROR)
- {
- syslog(LOG_NOTICE, _("Error message from %s (%s): %s: %s"),
- c->name, c->hostname, strerror(err), errorstring);
- }
-
- terminate_connection(c, c->status.active);
-cp
- return 0;
-}
+ logger(mesh, MESHLINK_INFO, "Status message from %s: %d: %s", c->name, statusno, statusstring);
-int send_termreq(connection_t *c)
-{
-cp
- return send_request(c, "%d", TERMREQ);
+ return true;
}
-int termreq_h(connection_t *c)
-{
-cp
- terminate_connection(c, c->status.active);
-cp
- return 0;
+bool error_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
+ assert(request);
+ assert(*request);
+
+ int err;
+ char errorstring[MAX_STRING_SIZE];
+
+ if(sscanf(request, "%*d %d " MAX_STRING, &err, errorstring) != 2) {
+ logger(mesh, MESHLINK_ERROR, "Got bad %s from %s", "ERROR", c->name);
+ return false;
+ }
+
+ logger(mesh, MESHLINK_INFO, "Error message from %s: %d: %s", c->name, err, errorstring);
+
+ return false;
}
-int send_ping(connection_t *c)
-{
-cp
- c->status.pinged = 1;
- c->last_ping_time = now;
-cp
- return send_request(c, "%d", PING);
+bool termreq_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
+ (void)mesh;
+ (void)c;
+ (void)request;
+
+ assert(request);
+ assert(*request);
+
+ return false;
}
-int ping_h(connection_t *c)
-{
-cp
- return send_pong(c);
+bool send_ping(meshlink_handle_t *mesh, connection_t *c) {
+ c->status.pinged = true;
+ c->last_ping_time = mesh->loop.now.tv_sec;
+
+ return send_request(mesh, c, NULL, "%d", PING);
}
-int send_pong(connection_t *c)
-{
-cp
- return send_request(c, "%d", PONG);
+bool ping_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
+ (void)request;
+
+ assert(request);
+ assert(*request);
+
+ return send_pong(mesh, c);
}
-int pong_h(connection_t *c)
-{
-cp
- c->status.pinged = 0;
-
- /* Succesful connection, reset timeout if this is an outgoing connection. */
-
- if(c->outgoing)
- c->outgoing->timeout = 0;
-cp
- return 0;
+bool send_pong(meshlink_handle_t *mesh, connection_t *c) {
+ return send_request(mesh, c, NULL, "%d", PONG);
}
-/* Sending and receiving packets via TCP */
+bool pong_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
+ (void)mesh;
+ (void)request;
-int send_tcppacket(connection_t *c, vpn_packet_t *packet)
-{
- int x;
-cp
- /* Evil hack. */
+ assert(request);
+ assert(*request);
- x = send_request(c, "%d %hd", PACKET, packet->len);
+ c->status.pinged = false;
- if(x)
- return x;
-cp
- return send_meta(c, packet->data, packet->len);
-}
+ /* Successful connection, reset timeout if this is an outgoing connection. */
+
+ if(c->outgoing) {
+ reset_outgoing(c->outgoing);
+ }
-int tcppacket_h(connection_t *c)
-{
- short int len;
-cp
- if(sscanf(c->buffer, "%*d %hd", &len) != 1)
- {
- syslog(LOG_ERR, _("Got bad %s from %s (%s)"), "PACKET", c->name, c->hostname);
- return -1;
- }
-
- /* Set reqlen to len, this will tell receive_meta() that a tcppacket is coming. */
-
- c->tcplen = len;
-cp
- return 0;
+ return true;
}
-/* Status strings */
+/* Sending and receiving packets via TCP */
+
+bool tcppacket_h(meshlink_handle_t *mesh, connection_t *c, const char *request) {
+ assert(request);
+ assert(*request);
-char (*status_text[]) = {
- "Warning",
-};
+ short int len;
-/* Error strings */
+ if(sscanf(request, "%*d %hd", &len) != 1) {
+ logger(mesh, MESHLINK_ERROR, "Got bad %s from %s", "PACKET", c->name);
+ return false;
+ }
-char (*error_text[]) = {
- "Error",
-};
+ // This should never happen with MeshLink.
+ return false;
+}
projects / meshlink / blobdiff