X-Git-Url: http://git.meshlink.io/?p=meshlink;a=blobdiff_plain;f=src%2Fprotocol_misc.c;h=af3caddf8957f38006a540ddc331cfe0823efcdd;hp=36054f0a4edc925061e5c8dd5c86c039a680c210;hb=be83b0af60449c7b35d17d97f2e6dc12f611e831;hpb=0b9175e998c2180e5d73ef3d644a49d620c68cad diff --git a/src/protocol_misc.c b/src/protocol_misc.c index 36054f0a..af3caddf 100644 --- a/src/protocol_misc.c +++ b/src/protocol_misc.c @@ -1,7 +1,6 @@ /* protocol_misc.c -- handle the meta-protocol, miscellaneous functions - Copyright (C) 1999-2002 Ivo Timmermans , - 2000-2002 Guus Sliepen + Copyright (C) 2014-2017 Guus Sliepen 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 @@ -13,194 +12,132 @@ 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 1.1.4.8 2003/07/06 22:11:33 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 -#include -#include -#include -#include - -#include +#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 "logger.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(); +bool status_h(meshlink_handle_t *mesh, connection_t *c, const char *request) { + assert(request); + assert(*request); - if(!statusstring) - statusstring = status_text[statusno]; - - return send_request(c, "%d %d %s", STATUS, statusno, statusstring); -} - -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) { - logger(DEBUG_ALWAYS, LOG_ERR, _("Got bad %s from %s (%s)"), "STATUS", - c->name, c->hostname); - return -1; + if(sscanf(request, "%*d %d " MAX_STRING, &statusno, statusstring) != 2) { + logger(mesh, MESHLINK_ERROR, "Got bad %s from %s", "STATUS", c->name); + return false; } - logger(DEBUG_STATUS, LOG_NOTICE, _("Status message from %s (%s): %s: %s"), - c->name, c->hostname, status_text[statusno], statusstring); + logger(mesh, MESHLINK_INFO, "Status message from %s: %d: %s", c->name, statusno, statusstring); - return 0; + return true; } -int send_error(connection_t *c, int err, char *errstring) -{ - cp(); - - if(!errstring) - errstring = strerror(err); +bool error_h(meshlink_handle_t *mesh, connection_t *c, const char *request) { + assert(request); + assert(*request); - return send_request(c, "%d %d %s", ERROR, err, errstring); -} - -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) { - logger(DEBUG_ALWAYS, LOG_ERR, _("Got bad %s from %s (%s)"), "ERROR", - c->name, c->hostname); - return -1; + 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(DEBUG_ERROR, LOG_NOTICE, _("Error message from %s (%s): %s: %s"), - c->name, c->hostname, strerror(err), errorstring); + logger(mesh, MESHLINK_INFO, "Error message from %s: %d: %s", c->name, err, errorstring); - terminate_connection(c, c->status.active); - - return 0; + return false; } -int send_termreq(connection_t *c) -{ - cp(); +bool termreq_h(meshlink_handle_t *mesh, connection_t *c, const char *request) { + (void)mesh; + (void)c; + (void)request; - return send_request(c, "%d", TERMREQ); -} + assert(request); + assert(*request); -int termreq_h(connection_t *c) -{ - cp(); + return false; +} - terminate_connection(c, c->status.active); +bool send_ping(meshlink_handle_t *mesh, connection_t *c) { + c->status.pinged = true; + c->last_ping_time = mesh->loop.now.tv_sec; - return 0; + return send_request(mesh, c, NULL, "%d", PING); } -int send_ping(connection_t *c) -{ - cp(); +bool ping_h(meshlink_handle_t *mesh, connection_t *c, const char *request) { + (void)request; - c->status.pinged = 1; - c->last_ping_time = now; + assert(request); + assert(*request); - return send_request(c, "%d", PING); + return send_pong(mesh, c); } -int ping_h(connection_t *c) -{ - cp(); - - return send_pong(c); +bool send_pong(meshlink_handle_t *mesh, connection_t *c) { + return send_request(mesh, c, NULL, "%d", PONG); } -int send_pong(connection_t *c) -{ - cp(); +bool pong_h(meshlink_handle_t *mesh, connection_t *c, const char *request) { + (void)mesh; + (void)request; - return send_request(c, "%d", PONG); -} + assert(request); + assert(*request); -int pong_h(connection_t *c) -{ - cp(); + c->status.pinged = false; - c->status.pinged = 0; + /* Successful connection, reset timeout if this is an outgoing connection. */ - /* Succesful connection, reset timeout if this is an outgoing connection. */ - - if(c->outgoing) + // TODO: completely remove this outgoing, let the autoconnect algorithm handle it + if(c->outgoing) { c->outgoing->timeout = 0; + c->outgoing->state = OUTGOING_START; - return 0; -} - -/* Sending and receiving packets via TCP */ - -int send_tcppacket(connection_t *c, vpn_packet_t *packet) -{ - int x; + if(c->outgoing->ai) { + freeaddrinfo(c->outgoing->ai); + } - cp(); - - /* Evil hack. */ + c->outgoing->ai = NULL; + c->outgoing->aip = NULL; + } - x = send_request(c, "%d %hd", PACKET, packet->len); + return true; +} - if(x) - return x; +/* Sending and receiving packets via TCP */ - return send_meta(c, packet->data, packet->len); -} +bool tcppacket_h(meshlink_handle_t *mesh, connection_t *c, const char *request) { + assert(request); + assert(*request); -int tcppacket_h(connection_t *c) -{ short int len; - cp(); - - if(sscanf(c->buffer, "%*d %hd", &len) != 1) { - logger(DEBUG_ALWAYS, LOG_ERR, _("Got bad %s from %s (%s)"), "PACKET", c->name, - c->hostname); - return -1; + if(sscanf(request, "%*d %hd", &len) != 1) { + logger(mesh, MESHLINK_ERROR, "Got bad %s from %s", "PACKET", c->name); + return false; } - /* Set reqlen to len, this will tell receive_meta() that a tcppacket is coming. */ - - c->tcplen = len; - - return 0; + // This should never happen with MeshLink. + return false; } - -/* Status strings */ - -char (*status_text[]) = { - "Warning", -}; - -/* Error strings */ - -char (*error_text[]) = { - "Error", -};