X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=pppd%2Fsys-svr4.c;h=5f0ffa573689c80a0ddff1aaa2299998cc67e0dd;hb=cb81f8465934497ad021639842ce95ab66ec44b8;hp=64ad5f94a4c0867c2fa224ab21772cc15b9ded91;hpb=7cb4808861c696131ee0e34165c5b1450eb0e8f6;p=ppp.git

diff --git a/pppd/sys-svr4.c b/pppd/sys-svr4.c
index 64ad5f9..5f0ffa5 100644
--- a/pppd/sys-svr4.c
+++ b/pppd/sys-svr4.c
@@ -25,9 +25,7 @@
  * OR MODIFICATIONS.
  */
 
-#ifndef lint
-static char rcsid[] = "$Id: sys-svr4.c,v 1.31 1999/06/24 00:18:41 paulus Exp $";
-#endif
+#define RCSID	"$Id: sys-svr4.c,v 1.34 1999/09/08 01:11:16 masputra Exp $"
 
 #include <limits.h>
 #include <stdio.h>
@@ -69,6 +67,8 @@ static char rcsid[] = "$Id: sys-svr4.c,v 1.31 1999/06/24 00:18:41 paulus Exp $";
 
 #include "pppd.h"
 
+static const char rcsid[] = RCSID;
+
 static int	pppfd;
 static int	fdmuxid = -1;
 static int	ipfd;
@@ -111,6 +111,37 @@ static int dlpi_info_req __P((int));
 static int dlpi_get_reply __P((int, union DL_primitives *, int, int));
 static int strioctl __P((int, int, void *, int, int));
 
+#ifdef SOL2
+/*
+ * sifppa - Sets interface ppa
+ *
+ * without setting the ppa, ip module will return EINVAL upon setting the
+ * interface UP (SIOCSxIFFLAGS). This is because ip module in 2.8 expects
+ * two DLPI_INFO_REQ to be sent down to the driver (below ip) before
+ * IFF_UP can be set. Plumbing the device causes one DLPI_INFO_REQ to
+ * be sent down, and the second DLPI_INFO_REQ is sent upon receiving
+ * IF_UNITSEL (old) or SIOCSLIFNAME (new) ioctls. Such setting of the ppa
+ * is required because the ppp DLPI provider advertises itself as
+ * a DLPI style 2 type, which requires a point of attachment to be
+ * specified. The only way the user can specify a point of attachment
+ * is via SIOCSLIFNAME or IF_UNITSEL.
+ *
+ * Such changes in the behavior of ip module was made to meet new or
+ * evolving standards requirements.
+ *
+ */
+static int
+sifppa(fd, ppa)
+        int fd;
+        int ppa;
+{
+        if (ioctl(fd, IF_UNITSEL, (char *)&ppa) < 0) {
+	        return 0;
+        }
+
+        return 1;
+}
+#endif /* SOL2 */
 
 /*
  * sys_init - System-dependent initialization.
@@ -163,6 +194,18 @@ sys_init()
 	close(ifd);
 	fatal("Can't push IP module: %m");
     }
+
+#ifdef SOL2
+    /*
+     * Assign ppa according to the unit number returned by ppp device
+     * after plumbing is completed above.
+     */
+    if (sifppa(ifd, ifunit) < 0) {
+        close (ifd);
+        fatal("Can't set ppa for unit %d: %m", ifunit);
+    }
+#endif /* SOL2 */
+
 #else
     if (dlpi_attach(ifd, ifunit) < 0 ||
 	dlpi_get_reply(ifd, &reply.prim, DL_OK_ACK, sizeof(reply)) < 0) {
@@ -280,11 +323,14 @@ establish_ppp(fd)
 
     /* Push the async hdlc module and the compressor module. */
     tty_npushed = 0;
-    if (ioctl(fd, I_PUSH, "ppp_ahdl") < 0) {
-	error("Couldn't push PPP Async HDLC module: %m");
-	return -1;
+
+    if(!sync_serial) {
+        if (ioctl(fd, I_PUSH, "ppp_ahdl") < 0) {
+            error("Couldn't push PPP Async HDLC module: %m");
+	    return -1;
+        }
+        ++tty_npushed;
     }
-    ++tty_npushed;
     if (kdebugflag & 4) {
 	i = PPPDBG_LOG + PPPDBG_AHDLC;
 	strioctl(pppfd, PPPIO_DEBUG, &i, sizeof(int), 0);
@@ -515,7 +561,7 @@ set_up_tty(fd, local)
     struct termiox tiox;
 #endif
 
-    if (tcgetattr(fd, &tios) < 0)
+    if (!sync_serial && tcgetattr(fd, &tios) < 0)
 	fatal("tcgetattr: %m");
 
 #ifndef CRTSCTS
@@ -580,7 +626,7 @@ set_up_tty(fd, local)
 	    fatal("Baud rate for %s is 0; need explicit baud rate", devnam);
     }
 
-    if (tcsetattr(fd, TCSAFLUSH, &tios) < 0)
+    if (!sync_serial && tcsetattr(fd, TCSAFLUSH, &tios) < 0)
 	fatal("tcsetattr: %m");
 
 #ifndef CRTSCTS