-/* if.c 4.13 82/03/30 */
+/* if.c 6.6 85/03/19 */
-#include "../h/param.h"
-#include "../h/systm.h"
-#include "../h/socket.h"
-#include "../net/in.h"
-#include "../net/in_systm.h"
-#include "../net/if.h"
-#include "../net/af.h"
+#include "param.h"
+#include "systm.h"
+#include "socket.h"
+#include "protosw.h"
+#include "dir.h"
+#include "user.h"
+#include "kernel.h"
+#include "ioctl.h"
+#include "errno.h"
+
+#include "if.h"
+#include "af.h"
+
+#include "ether.h"
int ifqmaxlen = IFQ_MAXLEN;
if (ifp->if_snd.ifq_maxlen == 0)
ifp->if_snd.ifq_maxlen = ifqmaxlen;
}
+ if_slowtimo();
}
+#ifdef vax
/*
* Call each interface on a Unibus reset.
*/
register struct ifnet *ifp;
for (ifp = ifnet; ifp; ifp = ifp->if_next)
- if (ifp->if_ubareset)
- (*ifp->if_ubareset)(uban);
+ if (ifp->if_reset)
+ (*ifp->if_reset)(ifp->if_unit, uban);
}
+#endif
/*
* Attach an interface to the
{
register struct ifnet **p = &ifnet;
-COUNT(IF_ATTACH);
while (*p)
p = &((*p)->if_next);
*p = ifp;
{
register struct ifnet *ifp;
-COUNT(IF_IFWITHADDR);
#define equal(a1, a2) \
(bcmp((caddr_t)((a1)->sa_data), (caddr_t)((a2)->sa_data), 14) == 0)
for (ifp = ifnet; ifp; ifp = ifp->if_next) {
register struct sockaddr *addr;
{
register struct ifnet *ifp;
- register int af = addr->sa_family;
- register int (*netmatch)() = afswitch[af].af_netmatch;
+ register u_int af = addr->sa_family;
+ register int (*netmatch)();
+ if (af >= AF_MAX)
+ return (0);
+ netmatch = afswitch[af].af_netmatch;
for (ifp = ifnet; ifp; ifp = ifp->if_next) {
if (af != ifp->if_addr.sa_family)
continue;
}
/*
- * Formulate an Internet address from network + host. Used in
- * building addresses stored in the ifnet structure.
+ * Mark an interface down and notify protocols of
+ * the transition.
+ * NOTE: must be called at splnet or eqivalent.
*/
-struct in_addr
-if_makeaddr(net, host)
- int net, host;
+if_down(ifp)
+ register struct ifnet *ifp;
{
- u_long addr;
-
- if (net < 128)
- addr = (net << 24) | host;
- else if (net < 65536)
- addr = (net << 16) | host;
- else
- addr = (net << 8) | host;
-#ifdef vax
- addr = htonl(addr);
-#endif
- return (*(struct in_addr *)&addr);
+
+ ifp->if_flags &= ~IFF_UP;
+ pfctlinput(PRC_IFDOWN, (caddr_t)&ifp->if_addr);
+}
+
+/*
+ * Handle interface watchdog timer routines. Called
+ * from softclock, we decrement timers (if set) and
+ * call the appropriate interface routine on expiration.
+ */
+if_slowtimo()
+{
+ register struct ifnet *ifp;
+
+ for (ifp = ifnet; ifp; ifp = ifp->if_next) {
+ if (ifp->if_timer == 0 || --ifp->if_timer)
+ continue;
+ if (ifp->if_watchdog)
+ (*ifp->if_watchdog)(ifp->if_unit);
+ }
+ timeout(if_slowtimo, (caddr_t)0, hz / IFNET_SLOWHZ);
+}
+
+/*
+ * Map interface name to
+ * interface structure pointer.
+ */
+struct ifnet *
+ifunit(name)
+ register char *name;
+{
+ register char *cp;
+ register struct ifnet *ifp;
+ int unit;
+
+ for (cp = name; cp < name + IFNAMSIZ && *cp; cp++)
+ if (*cp >= '0' && *cp <= '9')
+ break;
+ if (*cp == '\0' || cp == name + IFNAMSIZ)
+ return ((struct ifnet *)0);
+ unit = *cp - '0';
+ for (ifp = ifnet; ifp; ifp = ifp->if_next) {
+ if (bcmp(ifp->if_name, name, (unsigned)(cp - name)))
+ continue;
+ if (unit == ifp->if_unit)
+ break;
+ }
+ return (ifp);
}
/*
- * Initialize an interface's routing
- * table entry according to the network.
- * INTERNET SPECIFIC.
+ * Interface ioctls.
*/
-if_rtinit(ifp, flags)
+ifioctl(cmd, data)
+ int cmd;
+ caddr_t data;
+{
register struct ifnet *ifp;
- int flags;
+ register struct ifreq *ifr;
+
+ switch (cmd) {
+
+ case SIOCGIFCONF:
+ return (ifconf(cmd, data));
+
+#if defined(INET) && NETHER > 0
+ case SIOCSARP:
+ case SIOCDARP:
+ if (!suser())
+ return (u.u_error);
+ /* FALL THROUGH */
+ case SIOCGARP:
+ return (arpioctl(cmd, data));
+#endif
+
+ case SIOCSIFADDR:
+ case SIOCSIFFLAGS:
+ case SIOCSIFDSTADDR:
+ if (!suser())
+ return (u.u_error);
+ break;
+ }
+ ifr = (struct ifreq *)data;
+ ifp = ifunit(ifr->ifr_name);
+ if (ifp == 0)
+ return (ENXIO);
+ switch (cmd) {
+
+ case SIOCGIFADDR:
+ ifr->ifr_addr = ifp->if_addr;
+ break;
+
+ case SIOCGIFDSTADDR:
+ if ((ifp->if_flags & IFF_POINTOPOINT) == 0)
+ return (EINVAL);
+ ifr->ifr_dstaddr = ifp->if_dstaddr;
+ break;
+
+ case SIOCGIFFLAGS:
+ ifr->ifr_flags = ifp->if_flags;
+ break;
+
+ case SIOCSIFFLAGS:
+ if (ifp->if_flags & IFF_UP && (ifr->ifr_flags & IFF_UP) == 0) {
+ int s = splimp();
+ if_down(ifp);
+ splx(s);
+ }
+ ifp->if_flags = ifr->ifr_flags;
+ break;
+
+ default:
+ if (ifp->if_ioctl == 0)
+ return (EOPNOTSUPP);
+ return ((*ifp->if_ioctl)(ifp, cmd, data));
+ }
+ return (0);
+}
+
+/*
+ * Return interface configuration
+ * of system. List may be used
+ * in later ioctl's (above) to get
+ * other information.
+ */
+/*ARGSUSED*/
+ifconf(cmd, data)
+ int cmd;
+ caddr_t data;
{
- struct sockaddr_in sin;
-
- if (ifp->if_flags & IFF_ROUTE)
- return;
- bzero((caddr_t)&sin, sizeof (sin));
- sin.sin_family = AF_INET;
- sin.sin_addr = if_makeaddr(ifp->if_net, 0);
- rtinit(&sin, &ifp->if_addr, flags);
+ register struct ifconf *ifc = (struct ifconf *)data;
+ register struct ifnet *ifp = ifnet;
+ register char *cp, *ep;
+ struct ifreq ifr, *ifrp;
+ int space = ifc->ifc_len, error = 0;
+
+ ifrp = ifc->ifc_req;
+ ep = ifr.ifr_name + sizeof (ifr.ifr_name) - 2;
+ for (; space > sizeof (ifr) && ifp; ifp = ifp->if_next) {
+ bcopy(ifp->if_name, ifr.ifr_name, sizeof (ifr.ifr_name) - 2);
+ for (cp = ifr.ifr_name; cp < ep && *cp; cp++)
+ ;
+ *cp++ = '0' + ifp->if_unit; *cp = '\0';
+ ifr.ifr_addr = ifp->if_addr;
+ error = copyout((caddr_t)&ifr, (caddr_t)ifrp, sizeof (ifr));
+ if (error)
+ break;
+ space -= sizeof (ifr), ifrp++;
+ }
+ ifc->ifc_len -= space;
+ return (error);
}