void cpu_switch_context_exit(void)
{
#ifdef NATIVE_AUTO_EXIT
if (sched_num_threads <= 1) {
DEBUG("cpu_switch_context_exit: last task has ended. exiting.\n");
real_exit(EXIT_SUCCESS);
}
#endif
if (_native_in_isr == 0) {
disableIRQ();
_native_in_isr = 1;
native_isr_context.uc_stack.ss_sp = __isr_stack;
native_isr_context.uc_stack.ss_size = SIGSTKSZ;
native_isr_context.uc_stack.ss_flags = 0;
makecontext(&native_isr_context, isr_cpu_switch_context_exit, 0);
if (setcontext(&native_isr_context) == -1) {
err(EXIT_FAILURE, "cpu_switch_context_exit: swapcontext");
}
errx(EXIT_FAILURE, "1 this should have never been reached!!");
}
else {
isr_cpu_switch_context_exit();
}
errx(EXIT_FAILURE, "3 this should have never been reached!!");
}
void exit(int status)
{
printf("We are in exit\n");
// char * value = getenv("PIPE_READ");
print_maps();
void __attribute__ ((noreturn)) (*real_exit)(int) = dlsym(RTLD_NEXT, "exit");
real_exit(status);
}
/**
* LPM_IDLE uses sleep() to wait for interrupts
* LPM_OFF exits process
* other modes not supported at the moment
*/
enum lpm_mode lpm_set(enum lpm_mode target)
{
enum lpm_mode last_lpm;
//DEBUG("lpm_set(%i)\n", target);
last_lpm = native_lpm;
native_lpm = target;
switch(native_lpm) { /* @contiki :-p */
case LPM_ON:
break;
case LPM_IDLE:
//DEBUG("lpm_set(): pause()\n");
//pause();
_native_lpm_sleep();
break;
/* XXX: unfinished modes: */
case LPM_SLEEP:
/*TODO: implement*/
printf("XXX: lpm_set(): LPM_SLEEP not implemented\n");
//sigsuspend();
case LPM_POWERDOWN:
/*TODO: implement*/
printf("XXX: lpm_set(): LPM_POWERDOWN not implemented\n");
//sigsuspend();
case LPM_OFF:
printf("lpm_set(): exit()\n");
real_exit(EXIT_SUCCESS);
default:
DEBUG("XXX: unsupported power mode: %i\n", native_lpm);
real_exit(EXIT_FAILURE);
}
return last_lpm;
}
void vwarnx(const char *fmt, va_list args)
{
char *m;
if ((m = make_message(fmt, args)) == NULL) {
_native_write(STDERR_FILENO, "malloc\n", 7);
real_exit(EXIT_FAILURE);
}
_native_write(STDERR_FILENO, _progname, strlen(_progname));
_native_write(STDERR_FILENO, ": ", 2);
_native_write(STDERR_FILENO, m, strlen(m));
_native_write(STDERR_FILENO, "\n", 1);
free(m);
}
void
exit(int status) throw()
{
print_trace ("%*sexit(%d)...\n", indent, "",
status);
indent+=2;
/* call the real exit function */
real_exit (status);
indent-=2;
print_trace ("%*sexit(%d)\n", indent, "",
status);
}
static int _init(dev_eth_t *ethdev)
{
dev_eth_tap_t *dev = (dev_eth_tap_t*)ethdev;
/* check device parametrs */
if (dev == NULL) {
return -ENODEV;
}
char *name = dev->tap_name;
#ifdef __MACH__ /* OSX */
char clonedev[255] = "/dev/"; /* XXX bad size */
strncpy(clonedev + 5, name, 250);
#elif defined(__FreeBSD__)
char clonedev[255] = "/dev/"; /* XXX bad size */
strncpy(clonedev + 5, name, 250);
#else /* Linux */
struct ifreq ifr;
const char *clonedev = "/dev/net/tun";
#endif
/* initialize device descriptor */
dev->promiscous = 0;
/* implicitly create the tap interface */
if ((dev->tap_fd = real_open(clonedev , O_RDWR)) == -1) {
err(EXIT_FAILURE, "open(%s)", clonedev);
}
#if (defined(__MACH__) || defined(__FreeBSD__)) /* OSX/FreeBSD */
struct ifaddrs *iflist;
if (real_getifaddrs(&iflist) == 0) {
for (struct ifaddrs *cur = iflist; cur; cur = cur->ifa_next) {
if ((cur->ifa_addr->sa_family == AF_LINK) && (strcmp(cur->ifa_name, name) == 0) && cur->ifa_addr) {
struct sockaddr_dl *sdl = (struct sockaddr_dl *)cur->ifa_addr;
memcpy(dev->addr, LLADDR(sdl), sdl->sdl_alen);
break;
}
}
real_freeifaddrs(iflist);
}
#else /* Linux */
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
strncpy(ifr.ifr_name, name, IFNAMSIZ);
if (real_ioctl(dev->tap_fd, TUNSETIFF, (void *)&ifr) == -1) {
_native_in_syscall++;
warn("ioctl TUNSETIFF");
warnx("probably the tap interface (%s) does not exist or is already in use", name);
real_exit(EXIT_FAILURE);
}
/* get MAC address */
memset(&ifr, 0, sizeof(ifr));
snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s", name);
if (real_ioctl(dev->tap_fd, SIOCGIFHWADDR, &ifr) == -1) {
_native_in_syscall++;
warn("ioctl SIOCGIFHWADDR");
if (real_close(dev->tap_fd) == -1) {
warn("close");
}
real_exit(EXIT_FAILURE);
}
memcpy(dev->addr, ifr.ifr_hwaddr.sa_data, NG_ETHERNET_ADDR_LEN);
/* change mac addr so it differs from what the host is using */
dev->addr[5]++;
#endif
DEBUG("ng_tapnet_init(): dev->addr = %02x:%02x:%02x:%02x:%02x:%02x\n",
dev->addr[0], dev->addr[1], dev->addr[2],
dev->addr[3], dev->addr[4], dev->addr[5]);
/* configure signal handler for fds */
register_interrupt(SIGIO, _tap_isr);
#ifdef __MACH__
/* tuntap signalled IO is not working in OSX,
* * check http://sourceforge.net/p/tuntaposx/bugs/17/ */
_sigio_child(dev);
#else
/* configure fds to send signals on io */
if (fcntl(dev->tap_fd, F_SETOWN, _native_pid) == -1) {
err(EXIT_FAILURE, "ng_tapnet_init(): fcntl(F_SETOWN)");
}
/* set file access mode to non-blocking */
if (fcntl(dev->tap_fd, F_SETFL, O_NONBLOCK | O_ASYNC) == -1) {
err(EXIT_FAILURE, "ng_tabnet_init(): fcntl(F_SETFL)");
}
#endif /* not OSX */
DEBUG("ng_tapnet: initialized.\n");
return 0;
}
static int _init(netdev2_t *netdev)
{
DEBUG("%s:%s:%u\n", RIOT_FILE_RELATIVE, __func__, __LINE__);
netdev2_tap_t *dev = (netdev2_tap_t*)netdev;
/* check device parametrs */
if (dev == NULL) {
return -ENODEV;
}
char *name = dev->tap_name;
#ifdef __MACH__ /* OSX */
char clonedev[255] = "/dev/"; /* XXX bad size */
strncpy(clonedev + 5, name, 250);
#elif defined(__FreeBSD__)
char clonedev[255] = "/dev/"; /* XXX bad size */
strncpy(clonedev + 5, name, 250);
#else /* Linux */
struct ifreq ifr;
const char *clonedev = "/dev/net/tun";
#endif
/* initialize device descriptor */
dev->promiscous = 0;
/* implicitly create the tap interface */
if ((dev->tap_fd = real_open(clonedev, O_RDWR | O_NONBLOCK)) == -1) {
err(EXIT_FAILURE, "open(%s)", clonedev);
}
#if (defined(__MACH__) || defined(__FreeBSD__)) /* OSX/FreeBSD */
struct ifaddrs *iflist;
if (real_getifaddrs(&iflist) == 0) {
for (struct ifaddrs *cur = iflist; cur; cur = cur->ifa_next) {
if ((cur->ifa_addr->sa_family == AF_LINK) && (strcmp(cur->ifa_name, name) == 0) && cur->ifa_addr) {
struct sockaddr_dl *sdl = (struct sockaddr_dl *)cur->ifa_addr;
memcpy(dev->addr, LLADDR(sdl), sdl->sdl_alen);
break;
}
}
real_freeifaddrs(iflist);
}
#else /* Linux */
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
strncpy(ifr.ifr_name, name, IFNAMSIZ);
if (real_ioctl(dev->tap_fd, TUNSETIFF, (void *)&ifr) == -1) {
_native_in_syscall++;
warn("ioctl TUNSETIFF");
warnx("probably the tap interface (%s) does not exist or is already in use", name);
real_exit(EXIT_FAILURE);
}
/* get MAC address */
memset(&ifr, 0, sizeof(ifr));
snprintf(ifr.ifr_name, sizeof(ifr.ifr_name), "%s", name);
if (real_ioctl(dev->tap_fd, SIOCGIFHWADDR, &ifr) == -1) {
_native_in_syscall++;
warn("ioctl SIOCGIFHWADDR");
if (real_close(dev->tap_fd) == -1) {
warn("close");
}
real_exit(EXIT_FAILURE);
}
memcpy(dev->addr, ifr.ifr_hwaddr.sa_data, ETHERNET_ADDR_LEN);
/* change mac addr so it differs from what the host is using */
dev->addr[5]++;
#endif
DEBUG("gnrc_tapnet_init(): dev->addr = %02x:%02x:%02x:%02x:%02x:%02x\n",
dev->addr[0], dev->addr[1], dev->addr[2],
dev->addr[3], dev->addr[4], dev->addr[5]);
/* configure signal handler for fds */
native_async_read_setup();
native_async_read_add_handler(dev->tap_fd, NULL, _tap_isr);
#ifdef MODULE_NETSTATS_L2
memset(&netdev->stats, 0, sizeof(netstats_t));
#endif
DEBUG("gnrc_tapnet: initialized.\n");
return 0;
}
void verrx(int eval, const char *fmt, va_list args)
{
vwarnx(fmt, args);
real_exit(eval);
}
int main(int argc, char **argv)
{
(void)argc;
(void)argv;
puts("Starting the RIOT\n");
int fd,tap_fd;
const char *clonedev = "/dev/net/tun";
char *name = "tap0";
struct sockaddr_in6 servaddr, cliaddr;
struct ifreq ifr;
uint8_t buf[4096];
uint8_t scratch_raw[4096];
coap_rw_buffer_t scratch_buf = {scratch_raw, sizeof(scratch_raw)};
fd = socket(AF_INET6,SOCK_DGRAM,0);//Socket file descriptor init
bzero(&servaddr,sizeof(servaddr));
servaddr.sin6_family = AF_INET6;//inet family
servaddr.sin6_flowinfo = 0;//??
servaddr.sin6_addr.s6_addr[0] = (uint8_t)0x30;//IPv6 Address 1
servaddr.sin6_addr.s6_addr[1] = (uint8_t)0x00;
servaddr.sin6_addr.s6_addr[2] = (uint8_t)0x00;//IPv6 Address 2
servaddr.sin6_addr.s6_addr[3] = (uint8_t)0x00;
servaddr.sin6_addr.s6_addr[4] = (uint8_t)0x00;//IPv6 Address 3
servaddr.sin6_addr.s6_addr[5] = (uint8_t)0x00;
servaddr.sin6_addr.s6_addr[6] = (uint8_t)0x00;//IPv6 Address 4
servaddr.sin6_addr.s6_addr[7] = (uint8_t)0x00;
servaddr.sin6_addr.s6_addr[8] = (uint8_t)0x11;//IPv6 Address 5
servaddr.sin6_addr.s6_addr[9] = (uint8_t)0x11;
servaddr.sin6_addr.s6_addr[10] = (uint8_t)0x22;//IPv6 Address 6
servaddr.sin6_addr.s6_addr[11] = (uint8_t)0x22;
servaddr.sin6_addr.s6_addr[12] = (uint8_t)0x33;//IPv6 Address 7
servaddr.sin6_addr.s6_addr[13] = (uint8_t)0x33;
servaddr.sin6_addr.s6_addr[14] = (uint8_t)0x00;//IPv6 Address 8
servaddr.sin6_addr.s6_addr[15] = (uint8_t)0x01;
servaddr.sin6_port = htons(PORT); //PORT (5683)
bind(fd,(struct sockaddr *)&servaddr, sizeof(servaddr));
//Set TAP device up, give it local ipv6 address
/* implicitly create the tap interface */
if ((tap_fd = real_open(clonedev , O_RDWR)) == -1) {
err(EXIT_FAILURE, "open(%s)", clonedev);
}
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
strncpy(ifr.ifr_name, name, IFNAMSIZ);
if (real_ioctl(tap_fd, TUNSETIFF, (void *)&ifr) == -1) {
_native_in_syscall++;
warn("ioctl TUNSETIFF");
warnx("probably the tap interface (%s) does not exist or is already in use", name);
real_exit(EXIT_FAILURE);
}
//TODO Add Global IP
endpoint_setup();
while(1)
{
int n, rc;
socklen_t len = sizeof(cliaddr);
coap_packet_t pkt;
n = recvfrom(fd, buf, sizeof(buf), 0, (struct sockaddr *)&cliaddr, &len);
//#ifdef DEBUG
printf("Received: ");
coap_dump(buf, n, true);
printf("\n");
//#endif
if (0 != (rc = coap_parse(&pkt, buf, n)))
printf("Bad packet rc=%d\n", rc);
else
{
size_t rsplen = sizeof(buf);
coap_packet_t rsppkt;
#ifdef DEBUG
coap_dumpPacket(&pkt);
#endif
coap_handle_req(&scratch_buf, &pkt, &rsppkt);
if (0 != (rc = coap_build(buf, &rsplen, &rsppkt)))
printf("coap_build failed rc=%d\n", rc);
else
{
#ifdef DEBUG
printf("Sending: ");
coap_dump(buf, rsplen, true);
printf("\n");
#endif
#ifdef DEBUG
coap_dumpPacket(&rsppkt);
#endif
sendto(fd, buf, rsplen, 0, (struct sockaddr *)&cliaddr, sizeof(cliaddr));
}
}
}
}
