*/
#ifndef lint
-static char rcsid[] = "$Id: sys-bsd.c,v 1.1 1993/11/11 03:54:25 paulus Exp $";
+static char rcsid[] = "$Id: sys-bsd.c,v 1.5 1994/05/09 02:33:41 paulus Exp $";
#endif
/*
#include "pppd.h"
#include "ppp.h"
-static int initdisc; /* Initial TTY discipline */
-
+static int initdisc = -1; /* Initial TTY discipline */
+extern int kdebugflag;
/*
* establish_ppp - Turn the serial port into a ppp interface.
establish_ppp()
{
int pppdisc = PPPDISC;
+ int x;
if (ioctl(fd, TIOCGETD, &initdisc) < 0) {
syslog(LOG_ERR, "ioctl(TIOCGETD): %m");
syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m");
die(1);
}
+
+ /*
+ * Enable debug in the driver if requested.
+ */
+ if (kdebugflag) {
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_WARNING, "ioctl (PPPIOCGFLAGS): %m");
+ } else {
+ x |= (kdebugflag & 0xFF) * SC_DEBUG;
+ if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0)
+ syslog(LOG_WARNING, "ioctl(PPPIOCSFLAGS): %m");
+ }
+ }
}
void
disestablish_ppp()
{
- if (ioctl(fd, TIOCSETD, &initdisc) < 0)
- syslog(LOG_ERR, "ioctl(TIOCSETD): %m");
+ int x;
+ char *s;
+
+ if (initdisc >= 0) {
+ /*
+ * Check whether the link seems not to be 8-bit clean.
+ */
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) == 0) {
+ s = NULL;
+ switch (~x & (SC_RCV_B7_0|SC_RCV_B7_1|SC_RCV_EVNP|SC_RCV_ODDP)) {
+ case SC_RCV_B7_0:
+ s = "bit 7 set to 1";
+ break;
+ case SC_RCV_B7_1:
+ s = "bit 7 set to 0";
+ break;
+ case SC_RCV_EVNP:
+ s = "odd parity";
+ break;
+ case SC_RCV_ODDP:
+ s = "even parity";
+ break;
+ }
+ if (s != NULL) {
+ syslog(LOG_WARNING, "Serial link is not 8-bit clean:");
+ syslog(LOG_WARNING, "All received characters had %s", s);
+ }
+ }
+ if (ioctl(fd, TIOCSETD, &initdisc) < 0)
+ syslog(LOG_ERR, "ioctl(TIOCSETD): %m");
+ }
}
{
if (unit != 0)
MAINDEBUG((LOG_WARNING, "output: unit != 0!"));
+ if (debug)
+ log_packet(p, len, "sent ");
if (write(fd, p, len) < 0) {
syslog(LOG_ERR, "write: %m");
}
}
+
+/*
+ * ppp_set_xaccm - set the extended transmit ACCM for the interface.
+ */
+void
+ppp_set_xaccm(unit, accm)
+ int unit;
+ ext_accm accm;
+{
+ if (ioctl(fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY)
+ syslog(LOG_WARNING, "ioctl(set extended ACCM): %m");
+}
+
+
/*
* ppp_recv_config - configure the receive-side characteristics of
- * the ppp interface. At present this does nothing.
+ * the ppp interface.
*/
void
ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
u_long asyncmap;
int pcomp, accomp;
{
-#ifdef notyet
+ int x;
+
+ if (ioctl(fd, PPPIOCSMRU, (caddr_t) &mru) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSMRU): %m");
+ quit();
+ }
if (ioctl(fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) {
syslog(LOG_ERR, "ioctl(PPPIOCSRASYNCMAP): %m");
quit();
}
-
if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
quit();
syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
quit();
}
-#endif /* notyet */
}
/*
* sifvjcomp - config tcp header compression
*/
int
-sifvjcomp(u, vjcomp, cidcomp)
+sifvjcomp(u, vjcomp, cidcomp, maxcid)
+ int u, vjcomp, cidcomp, maxcid;
{
u_int x;
}
x = vjcomp ? x | SC_COMP_TCP: x &~ SC_COMP_TCP;
x = cidcomp? x & ~SC_NO_TCP_CCID: x | SC_NO_TCP_CCID;
- if(ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+ if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
+ return 0;
+ }
+ if (ioctl(fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) {
syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
return 0;
}
}
/*
- * sifup - Config the interface up.
+ * sifup - Config the interface up and enable IP packets to pass.
*/
int
sifup(u)
{
struct ifreq ifr;
+ u_int x;
+
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m");
syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
return 0;
}
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
+ return 0;
+ }
+ x |= SC_ENABLE_IP;
+ if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
+ return 0;
+ }
return 1;
}
/*
- * sifdown - Config the interface down.
+ * sifdown - Config the interface down and disable IP.
*/
int
sifdown(u)
{
struct ifreq ifr;
+ u_int x;
+ int rv;
+
+ rv = 1;
+ if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
+ rv = 0;
+ } else {
+ x &= ~SC_ENABLE_IP;
+ if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+ syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
+ rv = 0;
+ }
+ }
strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
syslog(LOG_ERR, "ioctl (SIOCGIFFLAGS): %m");
- return 0;
- }
- ifr.ifr_flags &= ~IFF_UP;
- if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
- syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
- return 0;
+ rv = 0;
+ } else {
+ ifr.ifr_flags &= ~IFF_UP;
+ if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
+ syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
+ rv = 0;
+ }
}
- return 1;
+ return rv;
}
/*
return 0;
}
+
+
+/*
+ * ppp_available - check whether the system has any ppp interfaces
+ * (in fact we check whether we can do an ioctl on ppp0).
+ */
+int
+ppp_available()
+{
+ int s, ok;
+ struct ifreq ifr;
+
+ if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
+ return 1; /* can't tell - maybe we're not root */
+
+ strncpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name));
+ ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0;
+ close(s);
+
+ return ok;
+}