describe new options, don't describe obsolete ones

[ppp.git] / pppd / sys-NeXT.c

diff --git a/pppd/sys-NeXT.c b/pppd/sys-NeXT.c
index a23f611251457806b012c49c0439b158fbfb3d3f..3f97b4cf74ed6de0330801fe6a2da58192a999ff 100644 (file)
--- a/pppd/sys-NeXT.c
+++ b/pppd/sys-NeXT.c
@@ -20,7 +20,7 @@
  */
 
 #ifndef lint
-static char rcsid[] = "$Id: sys-NeXT.c,v 1.1 1995/08/10 06:48:34 paulus Exp $";
+static char rcsid[] = "$Id: sys-NeXT.c,v 1.4 1996/01/01 23:03:23 paulus Exp $";
 #endif
 
 #include <stdio.h>
@@ -56,6 +56,7 @@ static char rcsid[] = "$Id: sys-NeXT.c,v 1.1 1995/08/10 06:48:34 paulus Exp $";
 #include "pppd.h"
 
 static int initdisc = -1;      /* Initial TTY discipline */
+static int initfdflags = -1;   /* Initial file descriptor flags for fd */
 
 extern int errno;
 
@@ -64,12 +65,24 @@ static struct termios inittermios; /* Initial TTY termios */
 
 static char *lock_file;
 
-int sockfd;                    /* socket for doing interface ioctls */
+static int sockfd;             /* socket for doing interface ioctls */
 
 #if defined(i386) && defined(HAS_BROKEN_IOCTL)
 #define        ioctl   myioctl
 #endif
 
+static int if_is_up;           /* the interface is currently up */
+static u_int32_t default_route_gateway;        /* gateway addr for default route */
+static u_int32_t proxy_arp_addr;       /* remote addr for proxy arp */
+
+/* Prototypes for procedures local to this file. */
+static int translate_speed __P((int));
+static int baud_rate_of __P((int));
+static int dodefaultroute __P((u_int32_t, int));
+static int get_ether_addr __P((u_int32_t, struct sockaddr *));
+static int ether_by_host __P((char *, struct ether_addr *));
+
+
 /*
  * sys_init - System-dependent initialization.
  */
@@ -88,6 +101,31 @@ sys_init()
     }
 }
 
+/*
+ * sys_cleanup - restore any system state we modified before exiting:
+ * mark the interface down, delete default route and/or proxy arp entry.
+ * This should call die() because it's called from die().
+ */
+void
+sys_cleanup()
+{
+    struct ifreq ifr;
+
+    if (if_is_up) {
+       strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+       if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) >= 0
+           && ((ifr.ifr_flags & IFF_UP) != 0)) {
+           ifr.ifr_flags &= ~IFF_UP;
+           ioctl(sockfd, SIOCSIFFLAGS, &ifr);
+       }
+    }
+
+    if (default_route_gateway)
+       cifdefaultroute(0, default_route_gateway);
+    if (proxy_arp_addr)
+       cifproxyarp(0, proxy_arp_addr);
+}
+
 /*
  * note_debug_level - note a change in the debug level.
  */
@@ -126,7 +164,8 @@ ppp_available()
  * establish_ppp - Turn the serial port into a ppp interface.
  */
 void
-establish_ppp()
+establish_ppp(fd)
+    int fd;
 {
     int pppdisc = PPPDISC;
     int x;
@@ -160,6 +199,14 @@ establish_ppp()
                syslog(LOG_WARNING, "ioctl(PPPIOCSFLAGS): %m");
        }
     }
+
+    /*
+     * Set device for non-blocking reads.
+     */
+    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");
+    }
 }
 
 
@@ -168,11 +215,17 @@ establish_ppp()
  * This shouldn't call die() because it's called from die().
  */
 void
-disestablish_ppp()
+disestablish_ppp(fd)
+    int fd;
 {
     int x;
     char *s;
 
+    /* Reset non-blocking mode on the file descriptor. */
+    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.
@@ -281,6 +334,12 @@ struct speed {
 #ifdef B57600
     { 57600, B57600 },
 #endif
+/*
+#ifndef B115200
+#warning Defining B115200
+#define B115200 20
+#endif
+*/
 #ifdef B115200
     { 115200, B115200 },
 #endif
@@ -308,7 +367,7 @@ translate_speed(bps)
 /*
  * Translate from a speed_t to bits/second.
  */
-int
+static int
 baud_rate_of(speed)
     int speed;
 {
@@ -328,6 +387,7 @@ baud_rate_of(speed)
  * at the requested speed, etc.  If `local' is true, set CLOCAL
  * regardless of whether the modem option was specified.
  */
+void
 set_up_tty(fd, local)
     int fd, local;
 {
@@ -347,14 +407,15 @@ set_up_tty(fd, local)
     tios.c_cflag |= CS8 | CREAD | HUPCL;
     if (local || !modem)
        tios.c_cflag |= CLOCAL;
+
     tios.c_iflag = IGNBRK | IGNPAR;
     tios.c_oflag = 0;
     tios.c_lflag = 0;
     tios.c_cc[VMIN] = 1;
     tios.c_cc[VTIME] = 0;
 
-    if (crtscts == 2) {
-       tios.c_iflag |= IXOFF;
+    if (crtscts == -2) {
+       tios.c_iflag |= IXON | IXOFF;
        tios.c_cc[VSTOP] = 0x13;        /* DC3 = XOFF = ^S */
        tios.c_cc[VSTART] = 0x11;       /* DC1 = XON  = ^Q */
     }
@@ -386,7 +447,8 @@ set_up_tty(fd, local)
  * restore_tty - restore the terminal to the saved settings.
  */
 void
-restore_tty()
+restore_tty(fd)
+    int fd;
 {
     if (restore_term) {
        if (tcsetattr(fd, TCSAFLUSH, &inittermios) < 0)
@@ -405,6 +467,7 @@ restore_tty()
  * NXFax's capability to determine port usage.
  *
  */
+void
 setdtr(fd, on)
 int fd, on;
 {
@@ -430,23 +493,27 @@ output(unit, p, len)
     u_char *p;
     int len;
 {
-    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");
-       die(1);
+    if (write(ttyfd, p, len) < 0) {
+       if (errno == EWOULDBLOCK || errno == ENOBUFS
+           || errno == ENXIO || errno == EIO) {
+           syslog(LOG_WARNING, "write: warning: %m");
+       } else {
+           syslog(LOG_ERR, "write: %m");
+           die(1);
+       }
     }
 }
 
 
 /*
- * wait_input - wait until there is data available on fd,
+ * wait_input - wait until there is data available on ttyfd,
  * for the length of time specified by *timo (indefinite
  * if timo is NULL).
  */
+void
 wait_input(timo)
     struct timeval *timo;
 {
@@ -454,8 +521,8 @@ wait_input(timo)
     int n;
 
     FD_ZERO(&ready);
-    FD_SET(fd, &ready);
-    n = select(fd+1, &ready, NULL, &ready, timo);
+    FD_SET(ttyfd, &ready);
+    n = select(ttyfd+1, &ready, NULL, &ready, timo);
     if (n < 0 && errno != EINTR) {
        syslog(LOG_ERR, "select: %m");
        die(1);
@@ -472,12 +539,12 @@ read_packet(buf)
 {
     int len;
 
-    if ((len = read(fd, buf, PPP_MTU + PPP_HDRLEN)) < 0) {
+    if ((len = read(ttyfd, buf, PPP_MTU + PPP_HDRLEN)) < 0) {
        if (errno == EWOULDBLOCK || errno == EINTR) {
-           MAINDEBUG((LOG_DEBUG, "read(fd): %m"));
+           MAINDEBUG((LOG_DEBUG, "read: %m"));
            return -1;
        }
-       syslog(LOG_ERR, "read(fd): %m");
+       syslog(LOG_ERR, "read: %m");
        die(1);
     }
     return len;
@@ -504,18 +571,18 @@ ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
        quit();
     }
 
-    if (ioctl(fd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) {
+    if (ioctl(ttyfd, PPPIOCSASYNCMAP, (caddr_t) &asyncmap) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCSASYNCMAP): %m");
        quit();
     }
 
-    if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+    if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m");
        quit();
     }
     x = pcomp? x | SC_COMP_PROT: x &~ SC_COMP_PROT;
     x = accomp? x | SC_COMP_AC: x &~ SC_COMP_AC;
-    if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+    if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
        quit();
     }
@@ -530,7 +597,7 @@ ppp_set_xaccm(unit, accm)
     int unit;
     ext_accm accm;
 {
-    if (ioctl(fd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY)
+    if (ioctl(ttyfd, PPPIOCSXASYNCMAP, accm) < 0 && errno != ENOTTY)
        syslog(LOG_WARNING, "ioctl(PPPIOCSXASYNCMAP): %m");
 }
 
@@ -547,20 +614,20 @@ ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
 {
     int x;
 
-    if (ioctl(fd, PPPIOCSMRU, (caddr_t) &mru) < 0) {
+    if (ioctl(ttyfd, PPPIOCSMRU, (caddr_t) &mru) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCSMRU): %m");
        quit();
     }
-    if (ioctl(fd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) {
+    if (ioctl(ttyfd, PPPIOCSRASYNCMAP, (caddr_t) &asyncmap) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCSRASYNCMAP): %m");
        quit();
     }
-    if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+    if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m");
        quit();
     }
     x = !accomp? x | SC_REJ_COMP_AC: x &~ SC_REJ_COMP_AC;
-    if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
+    if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
        quit();
     }
@@ -570,6 +637,7 @@ ppp_recv_config(unit, mru, asyncmap, pcomp, accomp)
  * ccp_test - ask kernel whether a given compression method
  * is acceptable for use.
  */
+int
 ccp_test(unit, opt_ptr, opt_len, for_transmit)
     int unit, opt_len, for_transmit;
     u_char *opt_ptr;
@@ -579,7 +647,9 @@ ccp_test(unit, opt_ptr, opt_len, for_transmit)
     data.ptr = opt_ptr;
     data.length = opt_len;
     data.transmit = for_transmit;
-    return ioctl(fd, PPPIOCSCOMPRESS, (caddr_t) &data) >= 0;
+    if (ioctl(ttyfd, PPPIOCSCOMPRESS, (caddr_t) &data) >= 0)
+       return 1;
+    return (errno == ENOBUFS)? 0: -1;
 }
 
 /*
@@ -591,13 +661,13 @@ ccp_flags_set(unit, isopen, isup)
 {
     int x;
 
-    if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+    if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m");
        return;
     }
     x = isopen? x | SC_CCP_OPEN: x &~ SC_CCP_OPEN;
     x = isup? x | SC_CCP_UP: x &~ SC_CCP_UP;
-    if (ioctl(fd, PPPIOCSFLAGS, (caddr_t) &x) < 0)
+    if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0)
        syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
 }
 
@@ -612,7 +682,7 @@ ccp_fatal_error(unit)
 {
     int x;
 
-    if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+    if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCGFLAGS): %m");
        return 0;
     }
@@ -628,17 +698,17 @@ sifvjcomp(u, vjcomp, cidcomp, maxcid)
 {
     u_int x;
 
-    if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+    if (ioctl(ttyfd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPIOCGFLAGS): %m");
        return 0;
     }
     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(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
        return 0;
     }
-    if (ioctl(fd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) {
+    if (ioctl(ttyfd, PPPIOCSMAXCID, (caddr_t) &maxcid) < 0) {
        syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
        return 0;
     }
@@ -670,20 +740,21 @@ sifup(u)
        syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
        return 0;
     }
+    if_is_up = 1;
     npi.protocol = PPP_IP;
     npi.mode = NPMODE_PASS;
-    if (ioctl(fd, PPPIOCSNPMODE, &npi) < 0) {
+    if (ioctl(ttyfd, PPPIOCSNPMODE, &npi) < 0) {
        if (errno != ENOTTY) {
            syslog(LOG_ERR, "ioctl(PPPIOCSNPMODE): %m");
            return 0;
        }
        /* for backwards compatibility */
-       if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+       if (ioctl(ttyfd, 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) {
+       if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
            syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
            return 0;
        }
@@ -706,18 +777,18 @@ sifdown(u)
     rv = 1;
     npi.protocol = PPP_IP;
     npi.mode = NPMODE_ERROR;
-    if (ioctl(fd, PPPIOCSNPMODE, (caddr_t) &npi) < 0) {
+    if (ioctl(ttyfd, PPPIOCSNPMODE, (caddr_t) &npi) < 0) {
        if (errno != ENOTTY) {
            syslog(LOG_ERR, "ioctl(PPPIOCSNPMODE): %m");
            rv = 0;
        } else {
            /* backwards compatibility */
-           if (ioctl(fd, PPPIOCGFLAGS, (caddr_t) &x) < 0) {
+           if (ioctl(ttyfd, 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) {
+               if (ioctl(ttyfd, PPPIOCSFLAGS, (caddr_t) &x) < 0) {
                    syslog(LOG_ERR, "ioctl(PPPIOCSFLAGS): %m");
                    rv = 0;
                }
@@ -734,7 +805,8 @@ sifdown(u)
        if (ioctl(sockfd, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
            syslog(LOG_ERR, "ioctl(SIOCSIFFLAGS): %m");
            rv = 0;
-       }
+       } else
+           if_is_up = 0;
     }
     return rv;
 }
@@ -855,6 +927,7 @@ dodefaultroute(g, cmd)
               (cmd == 's') ? "SIOCADDRT" : "SIOCDELRT");
        return 0;
     }
+    default_route_gateway = (cmd == 's')? g: 0;
     return 1;
 }
 
@@ -887,6 +960,7 @@ sifproxyarp(unit, hisaddr)
        return 0;
     }
 
+    proxy_arp_addr = hisaddr;
     return 1;
 }
 
@@ -907,6 +981,7 @@ cifproxyarp(unit, hisaddr)
        syslog(LOG_WARNING, "ioctl(SIOCDARP): %m");
        return 0;
     }
+    proxy_arp_addr = 0;
     return 1;
 }
 
@@ -989,7 +1064,7 @@ get_ether_addr(ipaddr, hwaddr)
     return 1;
 }
 
-int
+static int
 ether_by_host(hostname, etherptr)
     char *hostname;
     struct ether_addr *etherptr;