X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fsys-NeXT.c;h=ee2cece2f4e0bbfad49e480f1c3957005d01809e;hp=3f97b4cf74ed6de0330801fe6a2da58192a999ff;hb=96dad36e1d37716004171559280613739e7df29e;hpb=fbd84e94fedad26d52d3ab46de501da4945c98ca

diff --git a/pppd/sys-NeXT.c b/pppd/sys-NeXT.c
index 3f97b4c..ee2cece 100644
--- a/pppd/sys-NeXT.c
+++ b/pppd/sys-NeXT.c
@@ -20,7 +20,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: sys-NeXT.c,v 1.4 1996/01/01 23:03:23 paulus Exp $";
+static char rcsid[] = "$Id: sys-NeXT.c,v 1.8 1997/04/30 05:57:14 paulus Exp $";
 #endif
 
 #include <stdio.h>
@@ -57,6 +57,10 @@ static char rcsid[] = "$Id: sys-NeXT.c,v 1.4 1996/01/01 23:03:23 paulus Exp $";
 
 static int initdisc = -1;	/* Initial TTY discipline */
 static int initfdflags = -1;	/* Initial file descriptor flags for fd */
+static int ppp_fd = -1;		/* fd which is set to PPP discipline */
+static int loop_slave = -1;
+static int loop_master;
+static char loop_name[20];
 
 extern int errno;
 
@@ -91,8 +95,6 @@ sys_init()
 {
     openlog("pppd", LOG_PID | LOG_NDELAY, LOG_PPP);
     setlogmask(LOG_UPTO(LOG_INFO));
-    if (debug)
-	setlogmask(LOG_UPTO(LOG_DEBUG));
 
     /* Get an internet socket for doing socket ioctl's on. */
     if ((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
@@ -121,7 +123,7 @@ sys_cleanup()
     }
 
     if (default_route_gateway)
-	cifdefaultroute(0, default_route_gateway);
+	cifdefaultroute(0, 0, default_route_gateway);
     if (proxy_arp_addr)
 	cifproxyarp(0, proxy_arp_addr);
 }
@@ -149,6 +151,7 @@ ppp_available()
 {
     int s, ok;
     struct ifreq ifr;
+    extern char *no_ppp_msg;
 
     if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
 	return 1;		/* can't tell - maybe we're not root */
@@ -157,6 +160,11 @@ ppp_available()
     ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0;
     close(s);
 
+    no_ppp_msg = "\
+This system lacks kernel support for PPP.  To include PPP support\n\
+in the kernel, please follow the steps detailed in the README.NeXT\n\
+file in the ppp-2.2 distribution.\n";
+
     return ok;
 }
 
@@ -201,12 +209,14 @@ establish_ppp(fd)
     }
 
     /*
-     * Set device for non-blocking reads.
+     * Set device for non-blocking reads so PPPD can poll for
+     * input from the kernel.
      */
     if ((initfdflags = fcntl(fd, F_GETFL)) == -1
 	|| fcntl(fd, F_SETFL, initfdflags | O_NONBLOCK) == -1) {
 	syslog(LOG_WARNING, "Couldn't set device to non-blocking mode: %m");
     }
+
 }
 
 
@@ -218,41 +228,46 @@ void
 disestablish_ppp(fd)
     int fd;
 {
-    int x;
-    char *s;
-
-    /* Reset non-blocking mode on the file descriptor. */
+    /* Reset non-blocking mode on fd. */
     if (initfdflags != -1 && fcntl(fd, F_SETFL, initfdflags) < 0)
 	syslog(LOG_WARNING, "Couldn't restore device fd flags: %m");
     initfdflags = -1;
 
-    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);
-	    }
+    /* Restore old line discipline. */
+    if (initdisc >= 0 && ioctl(fd, TIOCSETD, &initdisc) < 0)
+	syslog(LOG_ERR, "ioctl(TIOCSETD): %m");
+    initdisc = -1;
+}
+
+/*
+ * Check whether the link seems not to be 8-bit clean.
+ */
+void
+clean_check()
+{
+    int x;
+    char *s;
+
+    if (ioctl(ttyfd, 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(disestablish TIOCSETD): %m");
     }
 }
 
@@ -426,6 +441,15 @@ set_up_tty(fd, local)
 	cfsetispeed(&tios, speed);
     } else {
 	speed = cfgetospeed(&tios);
+	/*
+	 * We can't proceed if the serial port speed is B0,
+	 * since that implies that the serial port is disabled.
+	 */
+	if (speed == B0) {
+	    syslog(LOG_ERR, "Baud rate for %s is 0; need explicit baud rate",
+		   devnam);
+	    die(1);
+	}
     }
 
     if (modem) {
@@ -494,7 +518,7 @@ output(unit, p, len)
     int len;
 {
     if (debug)
-	log_packet(p, len, "sent ");
+	log_packet(p, len, "sent ", LOG_DEBUG);
 
     if (write(ttyfd, p, len) < 0) {
 	if (errno == EWOULDBLOCK || errno == ENOBUFS
@@ -777,24 +801,9 @@ sifdown(u)
     rv = 1;
     npi.protocol = PPP_IP;
     npi.mode = NPMODE_ERROR;
-    if (ioctl(ttyfd, PPPIOCSNPMODE, (caddr_t) &npi) < 0) {
-	if (errno != ENOTTY) {
-	    syslog(LOG_ERR, "ioctl(PPPIOCSNPMODE): %m");
-	    rv = 0;
-	} else {
-	    /* backwards compatibility */
-	    if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
-		syslog(LOG_ERR, "ioctl (PPPIOCGFLAGS): %m");
-		rv = 0;
-	    } else {
-		x &= ~SC_ENABLE_IP;
-		if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
-		    syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
-		    rv = 0;
-		}
-	    }
-	}
-    }
+    ioctl(ttyfd, PPPIOCSNPMODE, (caddr_t) &npi);
+    /* ignore errors, because ttyfd might have been closed by now. */
+
 
     strncpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
     if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
@@ -889,9 +898,9 @@ cifaddr(u, o, h)
  * sifdefaultroute - assign a default route through the address given.
  */
 int
-sifdefaultroute(u, g)
+sifdefaultroute(u, l, g)
     int u;
-    u_int32_t g;
+    u_int32_t l, g;
 {
     return dodefaultroute(g, 's');
 }
@@ -900,9 +909,9 @@ sifdefaultroute(u, g)
  * cifdefaultroute - delete a default route through the address given.
  */
 int
-cifdefaultroute(u, g)
+cifdefaultroute(u, l, g)
     int u;
-    u_int32_t g;
+    u_int32_t l, g;
 {
     return dodefaultroute(g, 'c');
 }
@@ -1228,9 +1237,9 @@ strdup(s)
 
 #define WTMPFILE        "/usr/adm/wtmp"
 
-int
+void
 logwtmp(line, name, host)
-    char *line, *name, *host;
+    const char *line, *name, *host;
 {
     int fd;
     struct stat buf;
@@ -1424,3 +1433,247 @@ int sigaction(int sig, const struct sigaction *act, struct sigaction *oact)
 }
 
 #endif
+
+
+/*
+ * Code following is added for 2.3 compatibility
+ */
+
+/*
+ * get_idle_time - return how long the link has been idle.
+ */
+int
+get_idle_time(u, ip)
+    int u;
+    struct ppp_idle *ip;
+{
+  return (ioctl(ttyfd, PPPIOCGIDLE, ip) >= 0); 
+}
+
+
+/*
+ * get_loop_output - read characters from the loopback, form them
+ * into frames, and detect when we want to bring the real link up.
+ * Return value is 1 if we need to bring up the link, 0 otherwise.
+ */
+int
+get_loop_output()
+{
+
+#if 0
+    int rv = 0;
+    int n;
+
+    while ((n = read(loop_master, inbuf, sizeof(inbuf))) >= 0) {
+	if (loop_chars(inbuf, n))
+	    rv = 1;
+    }
+
+    if (n == 0) {
+	syslog(LOG_ERR, "eof on loopback");
+	die(1);
+    } else if (errno != EWOULDBLOCK){
+	syslog(LOG_ERR, "read from loopback: %m");
+	die(1);
+    }
+
+    return rv;
+#endif
+
+    return 0;
+}
+
+/*
+ * sifnpmode - Set the mode for handling packets for a given NP.
+ */
+int
+sifnpmode(u, proto, mode)
+    int u;
+    int proto;
+    enum NPmode mode;
+{
+    struct npioctl npi;
+
+    npi.protocol = proto;
+    npi.mode = mode;
+    if (ioctl(ttyfd, PPPIOCSNPMODE, &npi) < 0) {
+	syslog(LOG_ERR, "ioctl(set NP %d mode to %d): %m", proto, mode);
+	return 0;
+    }
+    return 1;
+}
+
+
+/*
+ * open_ppp_loopback - open the device we use for getting
+ * packets in demand mode, and connect it to a ppp interface.
+ * Here we use a pty.
+ */
+void
+open_ppp_loopback()
+{
+
+#if 0
+    int flags;
+    struct termios tios;
+    int pppdisc = PPPDISC;
+
+    syslog(LOG_ERR, "open_ppp_loopback called!");
+    die(1);
+
+    if (openpty(&loop_master, &loop_slave, loop_name, NULL, NULL) < 0) {
+	syslog(LOG_ERR, "No free pty for loopback");
+	die(1);
+    }
+    SYSDEBUG((LOG_DEBUG, "using %s for loopback", loop_name));
+
+    if (tcgetattr(loop_slave, &tios) == 0) {
+	tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB);
+	tios.c_cflag |= CS8 | CREAD;
+	tios.c_iflag = IGNPAR;
+	tios.c_oflag = 0;
+	tios.c_lflag = 0;
+	if (tcsetattr(loop_slave, TCSAFLUSH, &tios) < 0)
+	    syslog(LOG_WARNING, "couldn't set attributes on loopback: %m");
+    }
+
+    if ((flags = fcntl(loop_master, F_GETFL)) != -1) 
+	if (fcntl(loop_master, F_SETFL, flags | O_NONBLOCK) == -1)
+	    syslog(LOG_WARNING, "couldn't set loopback to nonblock: %m");
+
+    ttyfd = loop_slave;
+    if (ioctl(ttyfd, TIOCSETD, &pppdisc) < 0) {
+	syslog(LOG_ERR, "ioctl(TIOCSETD): %m");
+	die(1);
+    }
+
+    /*
+     * Find out which interface we were given.
+     */
+    if (ioctl(ttyfd, PPPIOCGUNIT, &ifunit) < 0) {	
+	syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m");
+	die(1);
+    }
+
+    /*
+     * Enable debug in the driver if requested.
+     */
+    if (kdebugflag) {
+	if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &flags) < 0) {
+	    syslog(LOG_WARNING, "ioctl (PPPIOCGFLAGS): %m");
+	} else {
+	    flags |= (kdebugflag & 0xFF) * SC_DEBUG;
+	    if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &flags) < 0)
+		syslog(LOG_WARNING, "ioctl(PPPIOCSFLAGS): %m");
+	}
+    }
+
+#endif
+
+}
+
+/*
+ * restore_loop - reattach the ppp unit to the loopback.
+ */
+void
+restore_loop()
+{
+    int x;
+
+    /*
+     * Transfer the ppp interface back to the loopback.
+     */
+    if (ioctl(ttyfd, PPPIOCXFERUNIT, 0) < 0) {
+	syslog(LOG_ERR, "ioctl(transfer ppp unit): %m");
+	die(1);
+    }
+    x = PPPDISC;
+    if (ioctl(loop_slave, TIOCSETD, &x) < 0) {
+	syslog(LOG_ERR, "ioctl(TIOCSETD): %m");
+	die(1);
+    }
+
+    /*
+     * Check that we got the same unit again.
+     */
+    if (ioctl(loop_slave, PPPIOCGUNIT, &x) < 0) {	
+	syslog(LOG_ERR, "ioctl(PPPIOCGUNIT): %m");
+	die(1);
+    }
+    if (x != ifunit) {
+	syslog(LOG_ERR, "transfer_ppp failed: wanted unit %d, got %d",
+	       ifunit, x);
+	die(1);
+    }
+    ttyfd = loop_slave;
+}
+
+
+/*
+ * sys_check_options - check the options that the user specified
+ */
+void
+sys_check_options()
+{
+  /*
+   * We don't support demand dialing yet.
+   */
+  if(demand)
+    {
+      syslog(LOG_WARNING, "PPP-2.3 for NeXTSTEP does not yet support demand dialing\n");
+      demand = 0;
+    }
+}
+
+
+/*
+ * sys_close - Clean up in a child process before execing.
+ */
+void
+sys_close()
+{
+    close(sockfd);
+    if (loop_slave >= 0) {
+	close(loop_slave);
+	close(loop_master);
+    }
+    closelog();
+}
+
+
+/*
+ * wait_loop_output - wait until there is data available on the
+ * loopback, for the length of time specified by *timo (indefinite
+ * if timo is NULL).
+ */
+void wait_loop_output(timo)
+    struct timeval *timo;
+{
+    fd_set ready;
+    int n;
+
+    FD_ZERO(&ready);
+    FD_SET(loop_master, &ready);
+    n = select(loop_master + 1, &ready, NULL, &ready, timo);
+    if (n < 0 && errno != EINTR) {
+	syslog(LOG_ERR, "select: %m");
+	die(1);
+    }
+}
+
+
+/*
+ * wait_time - wait for a given length of time or until a
+ * signal is received.
+ */
+void wait_time(timo)
+    struct timeval *timo;
+{
+    int n;
+
+    n = select(0, NULL, NULL, NULL, timo);
+    if (n < 0 && errno != EINTR) {
+	syslog(LOG_ERR, "select: %m");
+	die(1);
+    }
+}