contiki/core/net/uip-over-mesh.c

171 lines
5.7 KiB
C
Raw Normal View History

/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
Support for z80(sdcc) port. In order to support, some core modules are modified as follows: core/sys/dsc.h - If CTK_CONF_ICONS is diabled, the whole icon-related code is disabled. - DSC_HEADER is changed to remove extra semicolon. core/sys/process.h - process_data_t is expressed by void* in signatures (known bug on sdcc). core/sys/autostart.h - autostart_processes is changed to remove extra semicolon. core/sys/cc.h - CC_CONF_ASSIGN_AGGREGATE is introduced. - CC_CONF_INC_CAST_POINTER is introduced, a workaround of a kind of sdcc bug for an increment. core/net/hc.c core/net/uip_arp.c core/net/uaodv.c - Aggregation assignments are changed to uip_ipaddr_copy. core/net/psock.c core/net/uipbuf.c core/net/dhcpc.c apps/shell/shell.c core/ctk/vnc-server.c core/ctk/vnc-out.c - "register" keyword in a signature cannot be used in sdcc, CC_REGISTER_ARG is used instead. core/net/uip-over-mesh.c - An extra semicolon is removed. apps/dhcp/dhcp-dsc.c apps/shell/shell-dsc. apps/ftp/ftp-dsc.c apps/process-list/process-list-dsc.c apps/email/email-dsc.c apps/webserver/webserver-dsc.c apps/vnc/vnc-dsc.c apps/vnc/vnc-viewer.h apps/webbrowser/www-dsc.c apps/about/about-dsc.c apps/irc/irc-dsc.c apps/telnet/telnet-dsc.c apps/telnetd/telnetd-dsc.c apps/netconf/netconf-dsc.c apps/directory/directory-dsc.c pps/calc/calc-dsc.c - Modify an extern type to a real declaration, which is static to prevent a compile error. core/net/mac/xmac.c - Variables cannot be defined in a head of block on sdcc. core/ctk/ctk.h core/ctk/ctk.c apps/program-handler/program-handler.c - If CTK_CONF_ICONS is diabled, the whole icon-related code is disabled. Makefile.include - Add a set of configuration for an assembler. - $(CLEAN) variable is introduced for customized cleanup. apps/process-list/process-list.c - PROCESSLIST_CONF_HEIGHT is introduced to address smaller screen size. core/lib/ctk-filedialog.c - FILES_CONF_HEIGHT is introduced to address smaller screen size. - "register" keyword in a signature cannot be used in sdcc, CC_REGISTER_ARG is used instead. apps/vnc/vnc-viewer.c - A cast is added to prevent a compile error. - "register" keyword in a signature cannot be used in sdcc, CC_REGISTER_ARG is used instead. apps/webbrowser/webclient.c - CC_CONF_INC_CAST_POINTER is introduced, a workaround of a kind of sdcc bug for an increment. core/loader/elfloader.c - A cast is added to prevent a compile error. core/net/rime/rimeaddr.c - An initialization is added to prevent a compile error. core/net/rime/rudolph0.c - NULL is changed to 0, because NULL causes a compile error. core/net/rime/route-discovery.c - Add an argument to match the definition of nf_callbacks. cpu/z80/strcasecmp.h cpu/z80/strcasecmp.c cpu/z80/contiki-sdcc-conf.h cpu/z80/mtarch.c cpu/z80/mtarch.h cpu/z80/Makefile.z80 - New files to make compilation availble on sdcc. - Added support for multithreading.
2007-08-30 14:39:16 +00:00
* $Id: uip-over-mesh.c,v 1.5 2007/08/30 14:39:17 matsutsuka Exp $
*/
/**
* \file
* Code for tunnelling uIP packets over the mesh routing module
* \author
* Adam Dunkels <adam@sics.se>
*/
2007-03-26 22:45:49 +00:00
#include <stdio.h>
#include "net/hc.h"
#include "net/uip-fw.h"
#include "net/rime/route-discovery.h"
#include "net/rime/route.h"
#define ROUTE_TIMEOUT CLOCK_SECOND * 4
static struct queuebuf *queued_packet;
static rimeaddr_t queued_receiver;
Support for z80(sdcc) port. In order to support, some core modules are modified as follows: core/sys/dsc.h - If CTK_CONF_ICONS is diabled, the whole icon-related code is disabled. - DSC_HEADER is changed to remove extra semicolon. core/sys/process.h - process_data_t is expressed by void* in signatures (known bug on sdcc). core/sys/autostart.h - autostart_processes is changed to remove extra semicolon. core/sys/cc.h - CC_CONF_ASSIGN_AGGREGATE is introduced. - CC_CONF_INC_CAST_POINTER is introduced, a workaround of a kind of sdcc bug for an increment. core/net/hc.c core/net/uip_arp.c core/net/uaodv.c - Aggregation assignments are changed to uip_ipaddr_copy. core/net/psock.c core/net/uipbuf.c core/net/dhcpc.c apps/shell/shell.c core/ctk/vnc-server.c core/ctk/vnc-out.c - "register" keyword in a signature cannot be used in sdcc, CC_REGISTER_ARG is used instead. core/net/uip-over-mesh.c - An extra semicolon is removed. apps/dhcp/dhcp-dsc.c apps/shell/shell-dsc. apps/ftp/ftp-dsc.c apps/process-list/process-list-dsc.c apps/email/email-dsc.c apps/webserver/webserver-dsc.c apps/vnc/vnc-dsc.c apps/vnc/vnc-viewer.h apps/webbrowser/www-dsc.c apps/about/about-dsc.c apps/irc/irc-dsc.c apps/telnet/telnet-dsc.c apps/telnetd/telnetd-dsc.c apps/netconf/netconf-dsc.c apps/directory/directory-dsc.c pps/calc/calc-dsc.c - Modify an extern type to a real declaration, which is static to prevent a compile error. core/net/mac/xmac.c - Variables cannot be defined in a head of block on sdcc. core/ctk/ctk.h core/ctk/ctk.c apps/program-handler/program-handler.c - If CTK_CONF_ICONS is diabled, the whole icon-related code is disabled. Makefile.include - Add a set of configuration for an assembler. - $(CLEAN) variable is introduced for customized cleanup. apps/process-list/process-list.c - PROCESSLIST_CONF_HEIGHT is introduced to address smaller screen size. core/lib/ctk-filedialog.c - FILES_CONF_HEIGHT is introduced to address smaller screen size. - "register" keyword in a signature cannot be used in sdcc, CC_REGISTER_ARG is used instead. apps/vnc/vnc-viewer.c - A cast is added to prevent a compile error. - "register" keyword in a signature cannot be used in sdcc, CC_REGISTER_ARG is used instead. apps/webbrowser/webclient.c - CC_CONF_INC_CAST_POINTER is introduced, a workaround of a kind of sdcc bug for an increment. core/loader/elfloader.c - A cast is added to prevent a compile error. core/net/rime/rimeaddr.c - An initialization is added to prevent a compile error. core/net/rime/rudolph0.c - NULL is changed to 0, because NULL causes a compile error. core/net/rime/route-discovery.c - Add an argument to match the definition of nf_callbacks. cpu/z80/strcasecmp.h cpu/z80/strcasecmp.c cpu/z80/contiki-sdcc-conf.h cpu/z80/mtarch.c cpu/z80/mtarch.h cpu/z80/Makefile.z80 - New files to make compilation availble on sdcc. - Added support for multithreading.
2007-08-30 14:39:16 +00:00
static struct route_discovery_conn route_discovery;
static struct uc_conn dataconn;
2007-03-29 22:21:56 +00:00
#define DEBUG 0
#if DEBUG
#include <stdio.h>
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif
/*---------------------------------------------------------------------------*/
static void
recv_data(struct uc_conn *c, rimeaddr_t *from)
{
uip_len = rimebuf_copyto(&uip_buf[UIP_LLH_LEN]);
/* uip_len = hc_inflate(&uip_buf[UIP_LLH_LEN], uip_len);*/
2007-03-29 22:21:56 +00:00
PRINTF("uip-over-mesh: %d.%d: recv_data with len %d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1], uip_len);
tcpip_input();
}
/*---------------------------------------------------------------------------*/
static void
send_data(rimeaddr_t *next)
{
2007-03-29 22:21:56 +00:00
PRINTF("uip-over-mesh: %d.%d: send_data with len %d\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
rimebuf_totlen());
uc_send(&dataconn, next);
}
/*---------------------------------------------------------------------------*/
static void
new_route(struct route_discovery_conn *c, rimeaddr_t *to)
{
struct route_entry *rt;
if(queued_packet) {
2007-03-29 22:21:56 +00:00
PRINTF("uip-over-mesh: new route, sending queued packet\n");
queuebuf_to_rimebuf(queued_packet);
queuebuf_free(queued_packet);
queued_packet = NULL;
rt = route_lookup(&queued_receiver);
if(rt) {
send_data(&queued_receiver);
}
}
}
/*---------------------------------------------------------------------------*/
static void
timedout(struct route_discovery_conn *c)
{
2007-03-29 22:21:56 +00:00
PRINTF("uip-over-mesh: packet timed out\n");
if(queued_packet) {
2007-03-29 22:21:56 +00:00
PRINTF("uip-over-mesh: freeing queued packet\n");
queuebuf_free(queued_packet);
2007-03-29 22:21:56 +00:00
queued_packet = NULL;
}
}
/*---------------------------------------------------------------------------*/
static const struct uc_callbacks data_callbacks = { recv_data };
static const struct route_discovery_callbacks rdc = { new_route, timedout };
/*---------------------------------------------------------------------------*/
void
uip_over_mesh_init(u16_t channels)
{
/* printf("Our address is %d.%d (%d.%d.%d.%d)\n",
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
uip_hostaddr.u8[0], uip_hostaddr.u8[1],
uip_hostaddr.u8[2], uip_hostaddr.u8[3]); */
uc_open(&dataconn, channels, &data_callbacks);
2007-03-29 22:21:56 +00:00
route_discovery_open(&route_discovery, CLOCK_SECOND / 4,
channels + 1, &rdc);
tcpip_set_forwarding(1);
}
/*---------------------------------------------------------------------------*/
u8_t
uip_over_mesh_send(void)
{
rimeaddr_t receiver;
struct route_entry *rt;
/* This function is called by the uip-fw module to send out an IP
packet. We try to send the IP packet to the next hop route, or we
queue the packet and send out a route request for the final
receiver of the packet. */
receiver.u16[0] = ((struct uip_udpip_hdr *)&uip_buf[UIP_LLH_LEN])->destipaddr.u16[1];
2007-03-29 22:21:56 +00:00
PRINTF("uIP over mesh send to %d.%d with len %d\n",
receiver.u8[0], receiver.u8[1],
uip_len);
/* uip_len = hc_compress(&uip_buf[UIP_LLH_LEN], uip_len);*/
rimebuf_copyfrom(&uip_buf[UIP_LLH_LEN], uip_len);
rt = route_lookup(&receiver);
if(rt == NULL) {
2007-03-29 22:21:56 +00:00
PRINTF("uIP over mesh no route to %d.%d\n", receiver.u8[0], receiver.u8[1]);
if(queued_packet == NULL) {
queued_packet = queuebuf_new_from_rimebuf();
rimeaddr_copy(&queued_receiver, &receiver);
route_discovery_discover(&route_discovery, &receiver, ROUTE_TIMEOUT);
} else if(!rimeaddr_cmp(&queued_receiver, &receiver)) {
route_discovery_discover(&route_discovery, &receiver, ROUTE_TIMEOUT);
}
} else {
send_data(&rt->nexthop);
}
return UIP_FW_OK;
}
/*---------------------------------------------------------------------------*/