X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=pppd%2Fsys-bsd.c;h=0cccbae872591981101b995fd00c5c625b325bc4;hp=b830e01c3935851040b4a3ab96571639db2fa4ca;hb=39c06d616dd4c9443ed390969e58cd53ca1e314d;hpb=cb6271cf11b1237286e53124dd7a6ac2e24f6671

diff --git a/pppd/sys-bsd.c b/pppd/sys-bsd.c
index b830e01..0cccbae 100644
--- a/pppd/sys-bsd.c
+++ b/pppd/sys-bsd.c
@@ -2,28 +2,80 @@
  * sys-bsd.c - System-dependent procedures for setting up
  * PPP interfaces on bsd-4.4-ish systems (including 386BSD, NetBSD, etc.)
  *
- * Copyright (c) 1989 Carnegie Mellon University.
- * Copyright (c) 1995 The Australian National University.
- * All rights reserved.
+ * Copyright (c) 1993-2002 Paul Mackerras. All rights reserved.
  *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Carnegie Mellon University and The Australian National University.
- * The names of the Universities may not be used to endorse or promote
- * products derived from this software without specific prior written
- * permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The name(s) of the authors of this software must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission.
+ *
+ * 4. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by Paul Mackerras
+ *     <paulus@samba.org>".
+ *
+ * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Derived from main.c and pppd.h, which are:
+ *
+ * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The name "Carnegie Mellon University" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For permission or any legal
+ *    details, please contact
+ *      Office of Technology Transfer
+ *      Carnegie Mellon University
+ *      5000 Forbes Avenue
+ *      Pittsburgh, PA  15213-3890
+ *      (412) 268-4387, fax: (412) 268-7395
+ *      tech-transfer@andrew.cmu.edu
+ *
+ * 4. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by Computing Services
+ *     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
+ *
+ * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
+ * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-#ifndef lint
-static char rcsid[] = "$Id: sys-bsd.c,v 1.37 1999/03/16 02:57:06 paulus Exp $";
+#define RCSID	"$Id: sys-bsd.c,v 1.49 2002/12/06 12:06:45 paulus Exp $"
 /*	$NetBSD: sys-bsd.c,v 1.1.1.3 1997/09/26 18:53:04 christos Exp $	*/
-#endif
 
 /*
  * TODO:
@@ -74,6 +126,8 @@ static char rcsid[] = "$Id: sys-bsd.c,v 1.37 1999/03/16 02:57:06 paulus Exp $";
 #include "fsm.h"
 #include "ipcp.h"
 
+static const char rcsid[] = RCSID;
+
 static int initdisc = -1;	/* Initial TTY discipline for ppp_fd */
 static int initfdflags = -1;	/* Initial file descriptor flags for ppp_fd */
 static int ppp_fd = -1;		/* fd which is set to PPP discipline */
@@ -83,8 +137,6 @@ static int restore_term;	/* 1 => we've munged the terminal */
 static struct termios inittermios; /* Initial TTY termios */
 static struct winsize wsinfo;	/* Initial window size info */
 
-static char *lock_file;		/* name of lock file created */
-
 static int loop_slave = -1;
 static int loop_master;
 static char loop_name[20];
@@ -131,7 +183,7 @@ sys_cleanup()
     struct ifreq ifr;
 
     if (if_is_up) {
-	strlcpy(ifr.ifr_name, sizeof(ifr.ifr_name), ifname);
+	strlcpy(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;
@@ -188,7 +240,7 @@ ppp_available()
     if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
 	return 1;		/* can't tell */
 
-    strlcpy(ifr.ifr_name, sizeof (ifr.ifr_name), "ppp0");
+    strlcpy(ifr.ifr_name, "ppp0", sizeof (ifr.ifr_name));
     ok = ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) >= 0;
     close(s);
 
@@ -202,7 +254,7 @@ file in the ppp-2.2 distribution.\n";
 /*
  * establish_ppp - Turn the serial port into a ppp interface.
  */
-void
+int
 establish_ppp(fd)
     int fd;
 {
@@ -229,13 +281,13 @@ establish_ppp(fd)
 	/*
 	 * Find out which interface we were given.
 	 */
-	if (ioctl(fd, PPPIOCGUNIT, &ifunit) < 0) {    
+	if (ioctl(fd, PPPIOCGUNIT, &ifunit) < 0)
 	    fatal("ioctl(PPPIOCGUNIT): %m");
     } else {
 	/*
 	 * Check that we got the same unit again.
 	 */
-	if (ioctl(fd, PPPIOCGUNIT, &x) < 0) { 
+	if (ioctl(fd, PPPIOCGUNIT, &x) < 0)
 	    fatal("ioctl(PPPIOCGUNIT): %m");
 	if (x != ifunit)
 	    fatal("transfer_ppp failed: wanted unit %d, got %d", ifunit, x);
@@ -265,6 +317,8 @@ establish_ppp(fd)
 	|| fcntl(fd, F_SETFL, initfdflags | O_NONBLOCK) == -1) {
 	warn("Couldn't set device to non-blocking mode: %m");
     }
+
+    return fd;
 }
 
 /*
@@ -458,13 +512,45 @@ int fd, on;
     ioctl(fd, (on? TIOCMBIS: TIOCMBIC), &modembits);
 }
 
+/*
+ * get_pty - get a pty master/slave pair and chown the slave side
+ * to the uid given.  Assumes slave_name points to >= 12 bytes of space.
+ */
+int
+get_pty(master_fdp, slave_fdp, slave_name, uid)
+    int *master_fdp;
+    int *slave_fdp;
+    char *slave_name;
+    int uid;
+{
+    struct termios tios;
+
+    if (openpty(master_fdp, slave_fdp, slave_name, NULL, NULL) < 0)
+	return 0;
+
+    fchown(*slave_fdp, uid, -1);
+    fchmod(*slave_fdp, S_IRUSR | S_IWUSR);
+    if (tcgetattr(*slave_fdp, &tios) == 0) {
+	tios.c_cflag &= ~(CSIZE | CSTOPB | PARENB);
+	tios.c_cflag |= CS8 | CREAD;
+	tios.c_iflag  = IGNPAR | CLOCAL;
+	tios.c_oflag  = 0;
+	tios.c_lflag  = 0;
+	if (tcsetattr(*slave_fdp, TCSAFLUSH, &tios) < 0)
+	    warn("couldn't set attributes on pty: %m");
+    } else
+	warn("couldn't get attributes on pty: %m");
+
+    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
+int
 open_ppp_loopback()
 {
     int flags;
@@ -512,6 +598,7 @@ open_ppp_loopback()
 	}
     }
 
+    return loop_master;
 }
 
 
@@ -556,8 +643,11 @@ wait_input(timo)
 /*
  * add_fd - add an fd to the set that wait_input waits for.
  */
-void add_fd(int fd)
+void add_fd(fd)
+    int fd;
 {
+    if (fd >= FD_SETSIZE)
+	fatal("internal error: file descriptor too large (%d)", fd);
     FD_SET(fd, &in_fds);
     if (fd > max_in_fd)
 	max_in_fd = fd;
@@ -566,7 +656,8 @@ void add_fd(int fd)
 /*
  * remove_fd - remove an fd from the set that wait_input waits for.
  */
-void remove_fd(int fd)
+void remove_fd(fd)
+    int fd;
 {
     FD_CLR(fd, &in_fds);
 }
@@ -585,6 +676,8 @@ wait_loop_output(timo)
     int n;
 
     FD_ZERO(&ready);
+    if (loop_master >= FD_SETSIZE)
+	fatal("internal error: file descriptor too large (%d)", loop_master);
     FD_SET(loop_master, &ready);
     n = select(loop_master + 1, &ready, NULL, &ready, timo);
     if (n < 0 && errno != EINTR)
@@ -665,7 +758,7 @@ ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
     u_int x;
     struct ifreq ifr;
 
-    strlcpy(ifr.ifr_name, sizeof (ifr.ifr_name), ifname);
+    strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
     ifr.ifr_mtu = mtu;
     if (ioctl(sockfd, SIOCSIFMTU, (caddr_t) &ifr) < 0)
 	fatal("ioctl(SIOCSIFMTU): %m");
@@ -677,6 +770,7 @@ ppp_send_config(unit, mtu, asyncmap, pcomp, accomp)
 	fatal("ioctl (PPPIOCGFLAGS): %m");
     x = pcomp? x | SC_COMP_PROT: x &~ SC_COMP_PROT;
     x = accomp? x | SC_COMP_AC: x &~ SC_COMP_AC;
+    x = sync_serial ? x | SC_SYNC : x & ~SC_SYNC;
     if (ioctl(ppp_fd, PPPIOCSFLAGS, (caddr_t) &x) < 0)
 	fatal("ioctl(PPPIOCSFLAGS): %m");
 }
@@ -787,6 +881,27 @@ get_idle_time(u, ip)
     return ioctl(ppp_fd, PPPIOCGIDLE, ip) >= 0;
 }
 
+/*
+ * get_ppp_stats - return statistics for the link.
+ */
+int
+get_ppp_stats(u, stats)
+    int u;
+    struct pppd_stats *stats;
+{
+    struct ifpppstatsreq req;
+
+    memset (&req, 0, sizeof (req));
+    strlcpy(req.ifr_name, ifname, sizeof(req.ifr_name));
+    if (ioctl(sockfd, SIOCGPPPSTATS, &req) < 0) {
+	error("Couldn't get PPP statistics: %m");
+	return 0;
+    }
+    stats->bytes_in = req.stats.p.ppp_ibytes;
+    stats->bytes_out = req.stats.p.ppp_obytes;
+    return 1;
+}
+
 
 #ifdef PPP_FILTER
 /*
@@ -849,7 +964,7 @@ sifup(u)
 {
     struct ifreq ifr;
 
-    strlcpy(ifr.ifr_name, sizeof (ifr.ifr_name), ifname);
+    strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
     if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
 	error("ioctl (SIOCGIFFLAGS): %m");
 	return 0;
@@ -900,7 +1015,7 @@ sifdown(u)
     ioctl(ppp_fd, PPPIOCSNPMODE, (caddr_t) &npi);
     /* ignore errors, because ppp_fd might have been closed by now. */
 
-    strlcpy(ifr.ifr_name, sizeof (ifr.ifr_name), ifname);
+    strlcpy(ifr.ifr_name, ifname, sizeof (ifr.ifr_name));
     if (ioctl(sockfd, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
 	error("ioctl (SIOCGIFFLAGS): %m");
 	rv = 0;
@@ -935,7 +1050,7 @@ sifaddr(u, o, h, m)
     struct ifaliasreq ifra;
     struct ifreq ifr;
 
-    strlcpy(ifra.ifra_name, sizeof(ifra.ifra_name), ifname);
+    strlcpy(ifra.ifra_name, ifname, sizeof(ifra.ifra_name));
     SET_SA_FAMILY(ifra.ifra_addr, AF_INET);
     ((struct sockaddr_in *) &ifra.ifra_addr)->sin_addr.s_addr = o;
     SET_SA_FAMILY(ifra.ifra_broadaddr, AF_INET);
@@ -946,7 +1061,7 @@ sifaddr(u, o, h, m)
     } else
 	BZERO(&ifra.ifra_mask, sizeof(ifra.ifra_mask));
     BZERO(&ifr, sizeof(ifr));
-    strlcpy(ifr.ifr_name, sizeof(ifr.ifr_name), ifname);
+    strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
     if (ioctl(sockfd, SIOCDIFADDR, (caddr_t) &ifr) < 0) {
 	if (errno != EADDRNOTAVAIL)
 	    warn("Couldn't remove interface address: %m");
@@ -975,7 +1090,7 @@ cifaddr(u, o, h)
     struct ifaliasreq ifra;
 
     ifaddrs[0] = 0;
-    strlcpy(ifra.ifra_name, sizeof(ifra.ifra_name), ifname);
+    strlcpy(ifra.ifra_name, ifname, sizeof(ifra.ifra_name));
     SET_SA_FAMILY(ifra.ifra_addr, AF_INET);
     ((struct sockaddr_in *) &ifra.ifra_addr)->sin_addr.s_addr = o;
     SET_SA_FAMILY(ifra.ifra_broadaddr, AF_INET);
@@ -1253,7 +1368,7 @@ get_ether_addr(ipaddr, hwaddr)
 	 	((char *)&ifr->ifr_addr + ifr->ifr_addr.sa_len)) {
 	if (ifr->ifr_addr.sa_family == AF_INET) {
 	    ina = ((struct sockaddr_in *) &ifr->ifr_addr)->sin_addr.s_addr;
-	    strlcpy(ifreq.ifr_name, sizeof(ifreq.ifr_name), ifr->ifr_name);
+	    strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
 	    /*
 	     * Check that the interface is up, and not point-to-point
 	     * or loopback.
@@ -1352,7 +1467,7 @@ GetMask(addr)
 	/*
 	 * Check that the interface is up, and not point-to-point or loopback.
 	 */
-	strlcpy(ifreq.ifr_name, sizeof(ifreq.ifr_name), ifr->ifr_name);
+	strlcpy(ifreq.ifr_name, ifr->ifr_name, sizeof(ifreq.ifr_name));
 	if (ioctl(sockfd, SIOCGIFFLAGS, &ifreq) < 0)
 	    continue;
 	if ((ifreq.ifr_flags & (IFF_UP|IFF_POINTOPOINT|IFF_LOOPBACK))
@@ -1389,11 +1504,14 @@ get_host_seed()
     return gethostid();
 }
 
+#if 0
 /*
  * lock - create a lock file for the named lock device
  */
 #define	LOCK_PREFIX	"/var/spool/lock/LCK.."
 
+static char *lock_file;		/* name of lock file created */
+
 int
 lock(dev)
     char *dev;
@@ -1463,3 +1581,4 @@ unlock()
 	lock_file = NULL;
     }
 }
+#endif