* Bump speed over serial to 115200 (Tmote sky only).
* Linux fread workaround. * IP address detection. * Use SIGALRM rather than select timeout.
This commit is contained in:
bg-
parent
290489ac10
commit
d90f2d9824
@ -28,7 +28,7 @@
|
||||
*
|
||||
* This file is part of the uIP TCP/IP stack.
|
||||
*
|
||||
* $Id: tunslip.c,v 1.4 2006/09/26 15:45:09 bg- Exp $
|
||||
* $Id: tunslip.c,v 1.5 2006/12/01 15:09:57 bg- Exp $
|
||||
*
|
||||
*/
|
||||
|
||||
@ -435,6 +435,7 @@ ssystem(const char *fmt, ...)
|
||||
vsnprintf(cmd, sizeof(cmd), fmt, ap);
|
||||
va_end(ap);
|
||||
printf("%s\n", cmd);
|
||||
fflush(stdout);
|
||||
return system(cmd);
|
||||
}
|
||||
|
||||
@ -459,11 +460,20 @@ serial_to_tun(FILE *inslip, int outfd)
|
||||
int ret;
|
||||
unsigned char c;
|
||||
|
||||
#ifdef linux
|
||||
ret = fread(&c, 1, 1, inslip);
|
||||
if(ret == -1 || ret == 0) err(1, "serial_to_tun: read");
|
||||
goto after_fread;
|
||||
#endif
|
||||
|
||||
read_more:
|
||||
if(inbufptr >= sizeof(uip.inbuf)) {
|
||||
inbufptr = 0;
|
||||
}
|
||||
ret = fread(&c, 1, 1, inslip);
|
||||
#ifdef linux
|
||||
after_fread:
|
||||
#endif
|
||||
if(ret == -1) err(1, "serial_to_tun: read");
|
||||
if(ret == 0) {
|
||||
clearerr(inslip);
|
||||
@ -488,14 +498,27 @@ serial_to_tun(FILE *inslip, int outfd)
|
||||
if(memcmp(&ipa, &uip.inbuf[4], sizeof(ipa)) == 0)
|
||||
break;
|
||||
|
||||
memcpy(&ipa, &uip.inbuf[4], sizeof(ipa));
|
||||
/* New address. */
|
||||
if(ipa.s_addr != 0) {
|
||||
#ifdef linux
|
||||
ssystem("route add -net %s netmask %s dev %s",
|
||||
inet_ntoa(ipa), "255.255.255.255", tundev);
|
||||
ssystem("route delete -net %s netmask %s dev %s",
|
||||
inet_ntoa(ipa), "255.255.255.255", tundev);
|
||||
#else
|
||||
ssystem("route add -net %s -netmask %s -interface %s",
|
||||
inet_ntoa(ipa), "255.255.255.255", tundev);
|
||||
ssystem("route delete -net %s -netmask %s -interface %s",
|
||||
inet_ntoa(ipa), "255.255.255.255", tundev);
|
||||
#endif
|
||||
}
|
||||
|
||||
memcpy(&ipa, &uip.inbuf[4], sizeof(ipa));
|
||||
if(ipa.s_addr != 0) {
|
||||
#ifdef linux
|
||||
ssystem("route add -net %s netmask %s dev %s",
|
||||
inet_ntoa(ipa), "255.255.255.255", tundev);
|
||||
#else
|
||||
ssystem("route add -net %s -netmask %s -interface %s",
|
||||
inet_ntoa(ipa), "255.255.255.255", tundev);
|
||||
#endif
|
||||
}
|
||||
break;
|
||||
} else if(ecode < 0) {
|
||||
/*
|
||||
@ -661,7 +684,8 @@ tun_to_serial(int infd, int outfd)
|
||||
write_to_serial(outfd, uip.inbuf, size);
|
||||
}
|
||||
|
||||
#define BAUDRATE B57600
|
||||
#define BAUDRATE B115200
|
||||
//#define BAUDRATE B57600
|
||||
//#define BAUDRATE B38400
|
||||
//#define BAUDRATE B19200
|
||||
|
||||
@ -779,6 +803,27 @@ sigcleanup(int signo)
|
||||
exit(0); /* exit(0) will call cleanup() */
|
||||
}
|
||||
|
||||
static int got_sigalarm;
|
||||
|
||||
void
|
||||
sigalarm(int signo)
|
||||
{
|
||||
got_sigalarm = 1;
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
sigalarm_reset()
|
||||
{
|
||||
#ifdef linux
|
||||
#define TIMEOUT (997*1000)
|
||||
#else
|
||||
#define TIMEOUT (2451*1000)
|
||||
#endif
|
||||
ualarm(TIMEOUT, TIMEOUT);
|
||||
got_sigalarm = 0;
|
||||
}
|
||||
|
||||
void
|
||||
ifconf(const char *tundev, const char *ipaddr, const char *netmask)
|
||||
{
|
||||
@ -790,8 +835,12 @@ ifconf(const char *tundev, const char *ipaddr, const char *netmask)
|
||||
if (strcmp(ipaddr, "0.0.0.0") != 0)
|
||||
ssystem("route add -net %s netmask %s dev %s",
|
||||
inet_ntoa(netname), netmask, tundev);
|
||||
#else
|
||||
#ifdef mac_something
|
||||
ssystem("ifconfig %s inet `hostname` %s up", tundev, ipaddr);
|
||||
#else
|
||||
ssystem("ifconfig %s inet up", tundev);
|
||||
#endif
|
||||
if (strcmp(ipaddr, "0.0.0.0") != 0)
|
||||
ssystem("route add -net %s -netmask %s -interface %s",
|
||||
inet_ntoa(netname), netmask, tundev);
|
||||
@ -808,8 +857,6 @@ main(int argc, char **argv)
|
||||
int tunfd, slipfd, maxfd;
|
||||
int ret;
|
||||
fd_set rset, wset;
|
||||
struct timeval timeout;
|
||||
const char helo[6] = { SLIP_END, '?', 'I', 'P', 'A', SLIP_END };
|
||||
FILE *inslip;
|
||||
const char *siodev = NULL;
|
||||
const char *dhcp_server = NULL;
|
||||
@ -948,6 +995,7 @@ main(int argc, char **argv)
|
||||
signal(SIGHUP, sigcleanup);
|
||||
signal(SIGTERM, sigcleanup);
|
||||
signal(SIGINT, sigcleanup);
|
||||
signal(SIGALRM, sigalarm);
|
||||
ifconf(tundev, ipaddr, netmask);
|
||||
|
||||
while(1) {
|
||||
@ -955,6 +1003,16 @@ main(int argc, char **argv)
|
||||
FD_ZERO(&rset);
|
||||
FD_ZERO(&wset);
|
||||
|
||||
if(got_sigalarm) {
|
||||
/* Send "?IPA". */
|
||||
slip_send(slipfd, '?');
|
||||
slip_send(slipfd, 'I');
|
||||
slip_send(slipfd, 'P');
|
||||
slip_send(slipfd, 'A');
|
||||
slip_send(slipfd, SLIP_END);
|
||||
got_sigalarm = 0;
|
||||
}
|
||||
|
||||
if (!slip_empty()) /* Anything to flush? */
|
||||
FD_SET(slipfd, &wset);
|
||||
|
||||
@ -971,32 +1029,28 @@ main(int argc, char **argv)
|
||||
}
|
||||
}
|
||||
|
||||
timeout.tv_sec = 1;
|
||||
timeout.tv_usec = 450*1000;
|
||||
ret = select(maxfd + 1, &rset, &wset, NULL, &timeout);
|
||||
if(ret == -1)
|
||||
ret = select(maxfd + 1, &rset, &wset, NULL, NULL);
|
||||
if(ret == -1 && errno != EINTR)
|
||||
err(1, "select");
|
||||
else if(ret == 0 && slip_empty()) {
|
||||
ret = write(slipfd, helo, sizeof(helo));
|
||||
if(ret != sizeof(helo))
|
||||
err(1, "write helo");
|
||||
} else if(ret > 0) {
|
||||
else if(ret > 0) {
|
||||
if(FD_ISSET(slipfd, &rset))
|
||||
serial_to_tun(inslip, tunfd);
|
||||
|
||||
if(FD_ISSET(slipfd, &wset))
|
||||
if(FD_ISSET(slipfd, &wset)) {
|
||||
slip_flushbuf(slipfd);
|
||||
sigalarm_reset();
|
||||
}
|
||||
|
||||
if(slip_empty() && FD_ISSET(tunfd, &rset)) {
|
||||
tun_to_serial(tunfd, slipfd);
|
||||
slip_flushbuf(slipfd);
|
||||
sigalarm_reset();
|
||||
}
|
||||
|
||||
if(dhsock != -1 && slip_empty() && FD_ISSET(dhsock, &rset)) {
|
||||
relay_dhcp_to_client(slipfd);
|
||||
slip_flushbuf(slipfd);
|
||||
}
|
||||
} else
|
||||
err(1, "select");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user