* OR MODIFICATIONS.
*/
-#define RCSID "$Id: sys-svr4.c,v 1.33 1999/08/13 06:46:20 paulus Exp $"
+#define RCSID "$Id: sys-svr4.c,v 1.34 1999/09/08 01:11:16 masputra Exp $"
#include <limits.h>
#include <stdio.h>
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.
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) {