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Adding uIP 1.0

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@310 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2007-08-26 23:18:13 +00:00
parent 84dc5ff412
commit e23644692d
6 changed files with 350 additions and 2 deletions
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3
arch/sim/src/Makefile
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@ -49,6 +49,9 @@ CSRCS = up_initialize.c up_idle.c up_interruptcontext.c \
ifeq ($(CONFIG_FS_FAT),y)
CSRCS += up_blockdevice.c up_deviceimage.c
endif
ifeq ($(CONFIG_NET_UIP),y)
CSRCS += up_uipdriver.c
endif
COBJS = $(CSRCS:.c=$(OBJEXT))

2
arch/sim/src/up_blockdevice.c
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@ -14,7 +14,7 @@
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name Gregory Nutt nor the names of its contributors may be
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*

8
arch/sim/src/up_idle.c
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@ -14,7 +14,7 @@
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name Gregory Nutt nor the names of its contributors may be
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
@ -80,5 +80,11 @@ void up_idle(void)
*/
sched_process_timer();
/* Run the network if enabled */
#ifdef CONFIG_NET_UIP
uipdriver_loop();
#endif
}

3
arch/sim/src/up_initialize.c
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@ -86,4 +86,7 @@ void up_initialize(void)
devnull_register(); /* Standard /dev/null */
up_devconsole(); /* Our private /dev/console */
up_registerblockdevice(); /* Our simulated block device /dev/blkdev */
#ifdef CONFIG_NET_UIP
uipdriver_init(); /* Our "real" netwok driver */
#endif
}

7
arch/sim/src/up_internal.h
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@ -107,5 +107,12 @@ extern void up_registerblockdevice(void);
extern char *up_deviceimage(void);
/* up_uipdriver.c *********************************************************/
#ifdef CONFIG_NET_UIP
extern int uipdriver_init(void);
extern void uipdriver_loop(void);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_UP_INTERNAL_H */

329
arch/sim/src/up_uipdriver.c Normal file
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@ -0,0 +1,329 @@
/****************************************************************************
* up_uipdriver.c
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Based on code from uIP which also has a BSD-like license:
*
* Copyright (c) 2001, Adam Dunkels.
* 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 NuttX 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 COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <debug.h>
#include <net/uip/uip.h>
#include <net/uip/uip-arch.h>
#include <net/uip/uip-arp.h>
#ifdef linux
# include <sys/ioctl.h>
# include <linux/if.h>
# include <linux/if_tun.h>
# define DEVTAP "/dev/net/tun"
#else /* linux */
# define DEVTAP "/dev/tap0"
#endif /* linux */
#include "up_internal.h"
/****************************************************************************
* Private Definitions
****************************************************************************/
#define BUF ((struct uip_eth_hdr *)&uip_buf[0])
#define UIP_DRIPADDR0 192
#define UIP_DRIPADDR1 168
#define UIP_DRIPADDR2 0
#define UIP_DRIPADDR3 1
/****************************************************************************
* Private Types
****************************************************************************/
struct timer
{
uint32 interval;
uint32 start;
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_DEBUG
static int drop = 0;
#endif
static int fd;
static struct timer periodic_timer;
static struct timer arp_timer;
/****************************************************************************
* Private Functions
****************************************************************************/
static uint32 gettime( void )
{
struct timespec tm;
(void)clock_gettime(CLOCK_REALTIME, &tm);
return tm.tv_sec*1000 + tm.tv_nsec/1000000;
}
static void timer_set( struct timer *t, unsigned int interval )
{
t->interval = interval;
t->start = gettime();
}
static boolean timer_expired( struct timer *t )
{
return (gettime() - t->start) >= t->interval;
}
void timer_reset(struct timer *t)
{
t->start += t->interval;
}
static void tapdev_init(void)
{
char buf[1024];
fd = open(DEVTAP, O_RDWR);
if(fd == -1)
{
lib_rawprintf("tapdev: tapdev_init: open");
return;
}
#ifdef linux
{
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP|IFF_NO_PI;
if (ioctl(fd, TUNSETIFF, (void *) &ifr) < 0)
{
lib_rawprintf(buf);
return;
}
}
#endif /* Linux */
snprintf(buf, sizeof(buf), "ifconfig tap0 inet %d.%d.%d.%d",
UIP_DRIPADDR0, UIP_DRIPADDR1, UIP_DRIPADDR2, UIP_DRIPADDR3);
system(buf);
}
static unsigned int tapdev_read(void)
{
fd_set fdset;
struct timeval tv;
int ret;
tv.tv_sec = 0;
tv.tv_usec = 1000;
FD_ZERO(&fdset);
FD_SET(fd, &fdset);
ret = select(fd + 1, &fdset, NULL, NULL, &tv);
if(ret == 0)
{
return 0;
}
ret = read(fd, uip_buf, UIP_BUFSIZE);
if(ret == -1)
{
lib_rawprintf("tap_dev: tapdev_read: read");
}
dbg("tap_dev: tapdev_read: read %d bytes\n", ret);
{
int i;
for(i = 0; i < 20; i++)
{
vdbg("%x ", uip_buf[i]);
}
vdbg("\n");
}
#ifdef CONFIG_DEBUG
check_checksum(uip_buf, ret);
#endif
return ret;
}
static void tapdev_send(void)
{
int ret;
#ifdef CONFIG_DEBUG
dbg("tapdev_send: sending %d bytes\n", uip_len);
check_checksum(uip_buf, uip_len);
drop++;
if(drop % 8 == 7)
{
dbg("Dropped a packet!\n");
return;
}
#endif
ret = write(fd, uip_buf, uip_len);
if(ret == -1)
{
perror("tap_dev: tapdev_send: writev");
exit(1);
}
}
/****************************************************************************
* Public Functions
****************************************************************************/
void uipdriver_loop(void)
{
int i;
uip_len = tapdev_read();
if (uip_len > 0)
{
if (BUF->type == htons(UIP_ETHTYPE_IP))
{
uip_arp_ipin();
uip_input();
/* If the above function invocation resulted in data that
* should be sent out on the network, the global variable
* uip_len is set to a value > 0.
*/
if (uip_len > 0)
{
uip_arp_out();
tapdev_send();
}
}
else if (BUF->type == htons(UIP_ETHTYPE_ARP))
{
uip_arp_arpin();
/* If the above function invocation resulted in data that
* should be sent out on the network, the global variable
* uip_len is set to a value > 0.
*/
if (uip_len > 0)
{
tapdev_send();
}
}
}
else if (timer_expired(&periodic_timer))
{
timer_reset(&periodic_timer);
for(i = 0; i < UIP_CONNS; i++)
{
uip_periodic(i);
/* If the above function invocation resulted in data that
* should be sent out on the network, the global variable
* uip_len is set to a value > 0.
*/
if (uip_len > 0)
{
uip_arp_out();
tapdev_send();
}
}
#if UIP_UDP
for(i = 0; i < UIP_UDP_CONNS; i++)
{
uip_udp_periodic(i);
/* If the above function invocation resulted in data that
* should be sent out on the network, the global variable
* uip_len is set to a value > 0.
*/
if (uip_len > 0)
{
uip_arp_out();
tapdev_send();
}
}
#endif /* UIP_UDP */
/* Call the ARP timer function every 10 seconds. */
if (timer_expired(&arp_timer))
{
timer_reset(&arp_timer);
uip_arp_timer();
}
}
}
int uipdriver_init(void)
{
timer_set(&periodic_timer, CLK_TCK / 2);
timer_set(&arp_timer, CLK_TCK * 10);
tapdev_init();
uip_init();
return OK;
}