X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Fsys-linux.c;h=e23315a3486a583092aa9796e3d77a4f58a881dc;hb=d6e4ac0c098b02de9cc7907133d209da1bbf99df;hp=dcdb2ab82be3b8e58fb7deba324aa1131dd4cff3;hpb=64c5979a37b7865bc750f13dbe0b77507250e077;p=ppp.git

diff --git a/pppd/sys-linux.c b/pppd/sys-linux.c
index dcdb2ab..e23315a 100644
--- a/pppd/sys-linux.c
+++ b/pppd/sys-linux.c
@@ -173,8 +173,8 @@ static int ppp_disc = N_PPP;	/* The PPP discpline */
 static int initfdflags = -1;	/* Initial file descriptor flags for fd */
 static int ppp_fd = -1;		/* fd which is set to PPP discipline */
 static int sock_fd = -1;	/* socket for doing interface ioctls */
-static int slave_fd = -1;
-static int master_fd = -1;
+static int slave_fd = -1;	/* pty for old-style demand mode, slave */
+static int master_fd = -1;	/* pty for old-style demand mode, master */
 #ifdef INET6
 static int sock6_fd = -1;
 #endif /* INET6 */
@@ -205,7 +205,7 @@ static char loop_name[20];
 static unsigned char inbuf[512]; /* buffer for chars read from loopback */
 
 static int	if_is_up;	/* Interface has been marked up */
-static u_int32_t default_route_gateway;	/* Gateway for default route added */
+static int	have_default_route;	/* Gateway for default route added */
 static u_int32_t proxy_arp_addr;	/* Addr for proxy arp entry added */
 static char proxy_arp_dev[16];		/* Device for proxy arp entry */
 static u_int32_t our_old_addr;		/* for detecting address changes */
@@ -341,8 +341,8 @@ void sys_cleanup(void)
 /*
  * Delete any routes through the device.
  */
-    if (default_route_gateway != 0)
-	cifdefaultroute(0, 0, default_route_gateway);
+    if (have_default_route)
+	cifdefaultroute(0, 0, 0);
 
     if (has_proxy_arp)
 	cifproxyarp(0, proxy_arp_addr);
@@ -593,7 +593,7 @@ void generic_disestablish_ppp(int dev_fd)
 	if (demand) {
 	    modify_flags(ppp_dev_fd, 0, SC_LOOP_TRAFFIC);
 	    looped = 1;
-	} else if (ppp_dev_fd >= 0) {
+	} else if (!doing_multilink && ppp_dev_fd >= 0) {
 	    close(ppp_dev_fd);
 	    remove_fd(ppp_dev_fd);
 	    ppp_dev_fd = -1;
@@ -712,6 +712,18 @@ int bundle_attach(int ifnum)
 	return 1;
 }
 
+/*
+ * destroy_bundle - tell the driver to destroy our bundle.
+ */
+void destroy_bundle(void)
+{
+	if (ppp_dev_fd >= 0) {
+		close(ppp_dev_fd);
+		remove_fd(ppp_dev_fd);
+		ppp_dev_fd = -1;
+	}
+}
+
 /********************************************************************
  *
  * clean_check - Fetch the flags for the device and generate
@@ -1086,15 +1098,21 @@ int read_packet (unsigned char *buf)
 	if (nr < 0 && errno == ENXIO)
 	    return 0;
     }
-    if (nr < 0 && new_style_driver && ppp_dev_fd >= 0) {
+    if (nr < 0 && new_style_driver && ppp_dev_fd >= 0 && !bundle_eof) {
 	/* N.B. we read ppp_fd first since LCP packets come in there. */
 	nr = read(ppp_dev_fd, buf, len);
 	if (nr < 0 && errno != EWOULDBLOCK && errno != EAGAIN
 	    && errno != EIO && errno != EINTR)
 	    error("read /dev/ppp: %m");
 	if (nr < 0 && errno == ENXIO)
-	    return 0;
+	    nr = 0;
+	if (nr == 0 && doing_multilink) {
+	    remove_fd(ppp_dev_fd);
+	    bundle_eof = 1;
+	}
     }
+    if (new_style_driver && ppp_fd < 0 && ppp_dev_fd < 0)
+	nr = 0;
     return (new_style_driver && nr > 0)? nr+2: nr;
 }
 
@@ -1571,17 +1589,17 @@ int sifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway)
     struct rtentry rt;
 
     if (defaultroute_exists(&rt) && strcmp(rt.rt_dev, ifname) != 0) {
-	u_int32_t old_gateway = SIN_ADDR(rt.rt_gateway);
-
-	if (old_gateway != gateway)
-	    error("not replacing existing default route to %s [%I]",
-		  rt.rt_dev, old_gateway);
+	if (rt.rt_flags & RTF_GATEWAY)
+	    error("not replacing existing default route via %I",
+		  SIN_ADDR(rt.rt_gateway));
+	else
+	    error("not replacing existing default route through %s",
+		  rt.rt_dev);
 	return 0;
     }
 
-    memset (&rt, '\0', sizeof (rt));
-    SET_SA_FAMILY (rt.rt_dst,     AF_INET);
-    SET_SA_FAMILY (rt.rt_gateway, AF_INET);
+    memset (&rt, 0, sizeof (rt));
+    SET_SA_FAMILY (rt.rt_dst, AF_INET);
 
     rt.rt_dev = ifname;
 
@@ -1590,16 +1608,14 @@ int sifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway)
 	SIN_ADDR(rt.rt_genmask) = 0L;
     }
 
-    SIN_ADDR(rt.rt_gateway) = gateway;
-
-    rt.rt_flags = RTF_UP | RTF_GATEWAY;
+    rt.rt_flags = RTF_UP;
     if (ioctl(sock_fd, SIOCADDRT, &rt) < 0) {
 	if ( ! ok_error ( errno ))
 	    error("default route ioctl(SIOCADDRT): %m");
 	return 0;
     }
 
-    default_route_gateway = gateway;
+    have_default_route = 1;
     return 1;
 }
 
@@ -1612,7 +1628,7 @@ int cifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway)
 {
     struct rtentry rt;
 
-    default_route_gateway = 0;
+    have_default_route = 0;
 
     memset (&rt, '\0', sizeof (rt));
     SET_SA_FAMILY (rt.rt_dst,     AF_INET);
@@ -1623,9 +1639,7 @@ int cifdefaultroute (int unit, u_int32_t ouraddr, u_int32_t gateway)
 	SIN_ADDR(rt.rt_genmask) = 0L;
     }
 
-    SIN_ADDR(rt.rt_gateway) = gateway;
-
-    rt.rt_flags = RTF_UP | RTF_GATEWAY;
+    rt.rt_flags = RTF_UP;
     if (ioctl(sock_fd, SIOCDELRT, &rt) < 0 && errno != ESRCH) {
 	if (still_ppp()) {
 	    if ( ! ok_error ( errno ))
@@ -2790,7 +2804,8 @@ sys_check_options(void)
 
     if (ipxcp_protent.enabled_flag) {
 	struct stat stat_buf;
-	if ((path = path_to_procfs("/net/ipx_interface")) == 0
+	if (  ((path = path_to_procfs("/net/ipx/interface")) == NULL
+	    && (path = path_to_procfs("/net/ipx_interface")) == NULL)
 	    || lstat(path, &stat_buf) < 0) {
 	    error("IPX support is not present in the kernel\n");
 	    ipxcp_protent.enabled_flag = 0;