[src/trunk]: src/sys/net faith(4) is now a cloning pseudo-device.

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8e9ece92de01
branches:  trunk
changeset: 494266:8e9ece92de01
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Tue Jul 04 20:02:46 2000 +0000

description:
faith(4) is now a cloning pseudo-device.

diffstat:

 sys/net/if_faith.c |  82 +++++++++++++++++++++++++++++++++++++++--------------
 1 files changed, 60 insertions(+), 22 deletions(-)

diffs (122 lines):

diff -r b5c5b16e78ee -r 8e9ece92de01 sys/net/if_faith.c
--- a/sys/net/if_faith.c        Tue Jul 04 19:09:17 2000 +0000
+++ b/sys/net/if_faith.c        Tue Jul 04 20:02:46 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: if_faith.c,v 1.11 2000/03/30 09:45:35 augustss Exp $   */
+/*     $NetBSD: if_faith.c,v 1.12 2000/07/04 20:02:46 thorpej Exp $    */
 
 /*
  * Copyright (c) 1982, 1986, 1993
@@ -54,6 +54,8 @@
 #include <sys/errno.h>
 #include <sys/ioctl.h>
 #include <sys/time.h>
+#include <sys/queue.h>
+
 #include <machine/cpu.h>
 
 #include <net/if.h>
@@ -81,6 +83,11 @@
 
 #include <net/net_osdep.h>
 
+struct faith_softc {
+       struct ifnet sc_if;     /* must be first */
+       LIST_ENTRY(faith_softc) sc_list;
+};
+
 static int faithioctl __P((struct ifnet *, u_long, caddr_t));
 int faithoutput __P((struct ifnet *, struct mbuf *, struct sockaddr *,
        struct rtentry *));
@@ -88,39 +95,70 @@
 
 void faithattach __P((int));
 
-static struct ifnet faithif[NFAITH];
+LIST_HEAD(, faith_softc) faith_softc_list;
+
+int    faith_clone_create __P((struct if_clone *, int));
+void   faith_clone_destroy __P((struct ifnet *));
+
+struct if_clone faith_cloner =
+    IF_CLONE_INITIALIZER("faith", faith_clone_create, faith_clone_destroy);
 
 #define        FAITHMTU        1500
 
 /* ARGSUSED */
 void
-faithattach(faith)
-       int faith;
+faithattach(count)
+       int count;
 {
-       struct ifnet *ifp;
-       int i;
+
+       LIST_INIT(&faith_softc_list);
+       if_clone_attach(&faith_cloner);
+}
+
+int
+faith_clone_create(ifc, unit)
+       struct if_clone *ifc;
+       int unit;
+{
+       struct faith_softc *sc;
 
-       for (i = 0; i < NFAITH; i++) {
-               ifp = &faithif[i];
-               bzero(ifp, sizeof(faithif[i]));
-               sprintf(ifp->if_xname, "faith%d", i);
-               ifp->if_mtu = FAITHMTU;
-               /* Change to BROADCAST experimentaly to announce its prefix. */
-               ifp->if_flags = /* IFF_LOOPBACK */ IFF_BROADCAST | IFF_MULTICAST;
-               ifp->if_ioctl = faithioctl;
-               ifp->if_output = faithoutput;
-               ifp->if_type = IFT_FAITH;
-               ifp->if_hdrlen = 0;
-               ifp->if_addrlen = 0;
-               if_attach(ifp);
+       sc = malloc(sizeof(struct faith_softc), M_DEVBUF, M_WAITOK);
+       bzero(sc, sizeof(struct faith_softc));
+
+       sprintf(sc->sc_if.if_xname, "%s%d", ifc->ifc_name, unit);
+
+       sc->sc_if.if_mtu = FAITHMTU;
+       /* Change to BROADCAST experimentaly to announce its prefix. */
+       sc->sc_if.if_flags = /* IFF_LOOPBACK */ IFF_BROADCAST | IFF_MULTICAST;
+       sc->sc_if.if_ioctl = faithioctl;
+       sc->sc_if.if_output = faithoutput;
+       sc->sc_if.if_type = IFT_FAITH;
+       sc->sc_if.if_hdrlen = 0;
+       sc->sc_if.if_addrlen = 0;
+       if_attach(&sc->sc_if);
 #if NBPFILTER > 0
 #ifdef HAVE_OLD_BPF
-               bpfattach(ifp, DLT_NULL, sizeof(u_int));
+       bpfattach(&sc->sc_if, DLT_NULL, sizeof(u_int));
 #else
-               bpfattach(&ifp->if_bpf, ifp, DLT_NULL, sizeof(u_int));
+       bpfattach(&sc->sc_if.if_bpf, &sc->sc_if, DLT_NULL, sizeof(u_int));
 #endif
 #endif
-       }
+       LIST_INSERT_HEAD(&faith_softc_list, sc, sc_list);
+       return (0);
+}
+
+void
+faith_clone_destroy(ifp)
+       struct ifnet *ifp;
+{
+       struct faith_softc *sc = (void *) ifp;
+
+       LIST_REMOVE(sc, sc_list);
+#if NBPFILTER > 0
+       bpfdetach(ifp);
+#endif
+       if_detach(ifp);
+       free(sc, M_DEVBUF);
 }
 
 int