int
loop_clone_create(struct if_clone *ifc, int unit)
{
struct ifnet *ifp;
ifp = malloc(sizeof(*ifp), M_DEVBUF, M_NOWAIT|M_ZERO);
if (ifp == NULL)
return (ENOMEM);
snprintf(ifp->if_xname, sizeof ifp->if_xname, "lo%d", unit);
ifp->if_softc = NULL;
ifp->if_mtu = LOMTU;
ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST;
ifp->if_rtrequest = lortrequest;
ifp->if_ioctl = loioctl;
ifp->if_output = looutput;
ifp->if_type = IFT_LOOP;
ifp->if_hdrlen = sizeof(u_int32_t);
ifp->if_addrlen = 0;
IFQ_SET_READY(&ifp->if_snd);
if (unit == 0) {
if_attachhead(ifp);
if_addgroup(ifp, ifc->ifc_name);
lo0ifidx = ifp->if_index;
} else
if_attach(ifp);
if_alloc_sadl(ifp);
#if NBPFILTER > 0
bpfattach(&ifp->if_bpf, ifp, DLT_LOOP, sizeof(u_int32_t));
#endif
return (0);
}
void
ieee80211_ifattach(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
memcpy(((struct arpcom *)ifp)->ac_enaddr, ic->ic_myaddr,
ETHER_ADDR_LEN);
ether_ifattach(ifp);
ifp->if_output = ieee80211_output;
#if NBPFILTER > 0
bpfattach(&ic->ic_rawbpf, ifp, DLT_IEEE802_11,
sizeof(struct ieee80211_frame_addr4));
#endif
ieee80211_crypto_attach(ifp);
ieee80211_channel_init(ifp);
/* IEEE 802.11 defines a MTU >= 2290 */
ifp->if_capabilities |= IFCAP_VLAN_MTU;
ieee80211_setbasicrates(ic);
(void)ieee80211_setmode(ic, ic->ic_curmode);
if (ic->ic_lintval == 0)
ic->ic_lintval = 100; /* default sleep */
ic->ic_bmisstimeout = 7*ic->ic_lintval; /* default 7 beacons */
ic->ic_dtim_period = 1; /* all TIMs are DTIMs */
LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list);
ieee80211_node_attach(ifp);
ieee80211_proto_attach(ifp);
if_addgroup(ifp, "wlan");
ifp->if_priority = IF_WIRELESS_DEFAULT_PRIORITY;
}
void
ieee80211_ifattach(struct ifnet *ifp)
{
struct ieee80211com *ic = (void *)ifp;
struct ieee80211_channel *c;
int i;
memcpy(((struct arpcom *)ifp)->ac_enaddr, ic->ic_myaddr,
ETHER_ADDR_LEN);
ether_ifattach(ifp);
ifp->if_output = ieee80211_output;
#if NBPFILTER > 0
bpfattach(&ic->ic_rawbpf, ifp, DLT_IEEE802_11,
sizeof(struct ieee80211_frame_addr4));
#endif
ieee80211_crypto_attach(ifp);
/*
* Fill in 802.11 available channel set, mark
* all available channels as active, and pick
* a default channel if not already specified.
*/
memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail));
ic->ic_modecaps |= 1<<IEEE80211_MODE_AUTO;
for (i = 0; i <= IEEE80211_CHAN_MAX; i++) {
c = &ic->ic_channels[i];
if (c->ic_flags) {
/*
* Verify driver passed us valid data.
*/
if (i != ieee80211_chan2ieee(ic, c)) {
printf("%s: bad channel ignored; "
"freq %u flags %x number %u\n",
ifp->if_xname, c->ic_freq, c->ic_flags,
i);
c->ic_flags = 0; /* NB: remove */
continue;
}
setbit(ic->ic_chan_avail, i);
/*
* Identify mode capabilities.
*/
if (IEEE80211_IS_CHAN_A(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11A;
if (IEEE80211_IS_CHAN_B(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11B;
if (IEEE80211_IS_CHAN_PUREG(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_11G;
if (IEEE80211_IS_CHAN_T(c))
ic->ic_modecaps |= 1<<IEEE80211_MODE_TURBO;
}
}
/* validate ic->ic_curmode */
if ((ic->ic_modecaps & (1<<ic->ic_curmode)) == 0)
ic->ic_curmode = IEEE80211_MODE_AUTO;
ic->ic_des_chan = IEEE80211_CHAN_ANYC; /* any channel is ok */
ic->ic_scan_lock = IEEE80211_SCAN_UNLOCKED;
/* IEEE 802.11 defines a MTU >= 2290 */
ifp->if_capabilities |= IFCAP_VLAN_MTU;
ieee80211_setbasicrates(ic);
(void)ieee80211_setmode(ic, ic->ic_curmode);
if (ic->ic_lintval == 0)
ic->ic_lintval = 100; /* default sleep */
ic->ic_bmisstimeout = 7*ic->ic_lintval; /* default 7 beacons */
ic->ic_dtim_period = 1; /* all TIMs are DTIMs */
LIST_INSERT_HEAD(&ieee80211com_head, ic, ic_list);
ieee80211_node_attach(ifp);
ieee80211_proto_attach(ifp);
if_addgroup(ifp, "wlan");
ifp->if_priority = IF_WIRELESS_DEFAULT_PRIORITY;
}
