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

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This commit is contained in:
thorpej 2000-07-04 20:02:46 +00:00
parent 920e0d4a44
commit 83e31f15b2
1 changed files with 60 additions and 22 deletions
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82
sys/net/if_faith.c
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@ -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 @@ static void faithrtrequest __P((int, struct rtentry *, struct sockaddr *));
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;
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);
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;
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