/* $OpenBSD: an.c,v 1.79 2022/04/21 21:03:02 stsp Exp $ */ /* $NetBSD: an.c,v 1.34 2005/06/20 02:49:18 atatat Exp $ */ /* * Copyright (c) 1997, 1998, 1999 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/sys/dev/an/if_an.c,v 1.12 2000/11/13 23:04:12 wpaul Exp $ */ /* * Copyright (c) 2004, 2005 David Young. All rights reserved. * Copyright (c) 2004, 2005 OJC Technologies. All rights reserved. * Copyright (c) 2004, 2005 Dayton Data Center Services, LLC. All * rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY David Young AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL David Young AND CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ /* * Aironet 4500/4800 802.11 PCMCIA/ISA/PCI driver for FreeBSD. * * Written by Bill Paul * Electrical Engineering Department * Columbia University, New York City */ /* * Ported to NetBSD from FreeBSD by Atsushi Onoe at the San Diego * IETF meeting. */ #include "bpfilter.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if NBPFILTER > 0 #include #endif #include #include struct cfdriver an_cd = { NULL, "an", DV_IFNET }; int an_reset(struct an_softc *); void an_wait(struct an_softc *); int an_init(struct ifnet *); void an_stop(struct ifnet *, int); void an_start(struct ifnet *); void an_watchdog(struct ifnet *); int an_ioctl(struct ifnet *, u_long, caddr_t); int an_media_change(struct ifnet *); void an_media_status(struct ifnet *, struct ifmediareq *); int an_set_nwkey(struct an_softc *, struct ieee80211_nwkey *); int an_set_nwkey_wep(struct an_softc *, struct ieee80211_nwkey *); int an_get_nwkey(struct an_softc *, struct ieee80211_nwkey *); int an_write_wepkey(struct an_softc *, int, struct an_wepkey *, int); void an_rxeof(struct an_softc *); void an_txeof(struct an_softc *, u_int16_t); void an_linkstat_intr(struct an_softc *); int an_cmd(struct an_softc *, int, int); int an_seek_bap(struct an_softc *, int, int); int an_read_bap(struct an_softc *, int, int, void *, int, int); int an_write_bap(struct an_softc *, int, int, void *, int); int an_mwrite_bap(struct an_softc *, int, int, struct mbuf *, int); int an_read_rid(struct an_softc *, int, void *, int *); int an_write_rid(struct an_softc *, int, void *, int); int an_alloc_nicmem(struct an_softc *, int, int *); int an_newstate(struct ieee80211com *, enum ieee80211_state, int); #ifdef AN_DEBUG int an_debug = 0; #define DPRINTF(X) if (an_debug) printf X #define DPRINTF2(X) if (an_debug > 1) printf X #else #define DPRINTF(X) #define DPRINTF2(X) #endif #if BYTE_ORDER == BIG_ENDIAN static __inline void an_swap16(u_int16_t *p, int cnt) { for (; cnt--; p++) *p = swap16(*p); } #define an_switch32(val) (val >> 16 | (val & 0xFFFF) << 16) #else #define an_swap16(p, cnt) #define an_switch32(val) val #endif int an_attach(struct an_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; int i; struct an_rid_wepkey *akey; int buflen, kid, rid; int chan, chan_min, chan_max; sc->sc_invalid = 0; /* disable interrupts */ CSR_WRITE_2(sc, AN_INT_EN, 0); CSR_WRITE_2(sc, AN_EVENT_ACK, 0xffff); // an_wait(sc); if (an_reset(sc) != 0) { sc->sc_invalid = 1; return 1; } /* Load factory config */ if (an_cmd(sc, AN_CMD_READCFG, 0) != 0) { printf("%s: failed to load config data\n", sc->sc_dev.dv_xname); return (EIO); } /* Read the current configuration */ buflen = sizeof(sc->sc_config); if (an_read_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, &buflen) != 0) { printf("%s: read config failed\n", sc->sc_dev.dv_xname); return(EIO); } an_swap16((u_int16_t *)&sc->sc_config.an_macaddr, 3); /* Read the card capabilities */ buflen = sizeof(sc->sc_caps); if (an_read_rid(sc, AN_RID_CAPABILITIES, &sc->sc_caps, &buflen) != 0) { printf("%s: read caps failed\n", sc->sc_dev.dv_xname); return(EIO); } an_swap16((u_int16_t *)&sc->sc_caps.an_oemaddr, 3); an_swap16((u_int16_t *)&sc->sc_caps.an_rates, 4); /* Read WEP settings from persistent memory */ akey = &sc->sc_buf.sc_wepkey; buflen = sizeof(struct an_rid_wepkey); rid = AN_RID_WEP_VOLATILE; /* first persistent key */ while (an_read_rid(sc, rid, akey, &buflen) == 0) { an_swap16((u_int16_t *)&akey->an_mac_addr, 3); an_swap16((u_int16_t *)&akey->an_key, 8); kid = akey->an_key_index; DPRINTF(("an_attach: wep rid=0x%x len=%d(%d) index=0x%04x " "mac[0]=%02x keylen=%d\n", rid, buflen, sizeof(*akey), kid, akey->an_mac_addr[0], akey->an_key_len)); if (kid == 0xffff) { sc->sc_tx_perskey = akey->an_mac_addr[0]; sc->sc_tx_key = -1; break; } if (kid >= IEEE80211_WEP_NKID) break; sc->sc_perskeylen[kid] = akey->an_key_len; sc->sc_wepkeys[kid].an_wep_keylen = -1; rid = AN_RID_WEP_PERSISTENT; /* for next key */ buflen = sizeof(struct an_rid_wepkey); } IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_caps.an_oemaddr); bcopy(sc->sc_dev.dv_xname, ifp->if_xname, IFNAMSIZ); printf("%s: Firmware %x.%02x.%02x, Radio: ", ifp->if_xname, sc->sc_caps.an_fwrev >> 8, sc->sc_caps.an_fwrev & 0xff, sc->sc_caps.an_fwsubrev); if (sc->sc_config.an_radiotype & AN_RADIOTYPE_80211_FH) printf("802.11 FH"); else if (sc->sc_config.an_radiotype & AN_RADIOTYPE_80211_DS) printf("802.11 DS"); else if (sc->sc_config.an_radiotype & AN_RADIOTYPE_LM2000_DS) printf("LM2000 DS"); else printf("unknown (%x)", sc->sc_config.an_radiotype); printf(", address %s\n", ether_sprintf(ic->ic_myaddr)); ifp->if_softc = sc; ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = an_ioctl; ifp->if_start = an_start; ifp->if_watchdog = an_watchdog; ic->ic_phytype = IEEE80211_T_DS; ic->ic_opmode = IEEE80211_M_STA; ic->ic_caps = IEEE80211_C_WEP | IEEE80211_C_PMGT | IEEE80211_C_MONITOR; #ifndef IEEE80211_STA_ONLY ic->ic_caps |= IEEE80211_C_IBSS; #endif ic->ic_state = IEEE80211_S_INIT; IEEE80211_ADDR_COPY(ic->ic_myaddr, sc->sc_caps.an_oemaddr); switch (sc->sc_caps.an_regdomain) { default: case AN_REGDOMAIN_USA: case AN_REGDOMAIN_CANADA: chan_min = 1; chan_max = 11; break; case AN_REGDOMAIN_EUROPE: case AN_REGDOMAIN_AUSTRALIA: chan_min = 1; chan_max = 13; break; case AN_REGDOMAIN_JAPAN: chan_min = 14; chan_max = 14; break; case AN_REGDOMAIN_SPAIN: chan_min = 10; chan_max = 11; break; case AN_REGDOMAIN_FRANCE: chan_min = 10; chan_max = 13; break; case AN_REGDOMAIN_JAPANWIDE: chan_min = 1; chan_max = 14; break; } for (chan = chan_min; chan <= chan_max; chan++) { ic->ic_channels[chan].ic_freq = ieee80211_ieee2mhz(chan, IEEE80211_CHAN_2GHZ); ic->ic_channels[chan].ic_flags = IEEE80211_CHAN_B; } ic->ic_ibss_chan = &ic->ic_channels[chan_min]; /* Find supported rate */ for (i = 0; i < sizeof(sc->sc_caps.an_rates); i++) { if (sc->sc_caps.an_rates[i] == 0) continue; ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ ic->ic_sup_rates[IEEE80211_MODE_11B].rs_nrates++] = sc->sc_caps.an_rates[i]; } /* * Call MI attach routine. */ if_attach(ifp); ieee80211_ifattach(ifp); sc->sc_newstate = ic->ic_newstate; ic->ic_newstate = an_newstate; ieee80211_media_init(ifp, an_media_change, an_media_status); #if NBPFILTER > 0 bzero(&sc->sc_rxtapu, sizeof(sc->sc_rxtapu)); sc->sc_rxtap.ar_ihdr.it_len = sizeof(sc->sc_rxtapu); sc->sc_rxtap.ar_ihdr.it_present = AN_RX_RADIOTAP_PRESENT; bzero(&sc->sc_txtapu, sizeof(sc->sc_txtapu)); sc->sc_txtap.at_ihdr.it_len = sizeof(sc->sc_txtapu); sc->sc_txtap.at_ihdr.it_present = AN_TX_RADIOTAP_PRESENT; bpfattach(&sc->sc_drvbpf, ifp, DLT_IEEE802_11_RADIO, sizeof(struct ieee80211_frame) + 64); #endif sc->sc_attached = 1; return(0); } void an_rxeof(struct an_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; struct ifnet *ifp = &ic->ic_if; struct ieee80211_frame *wh; struct ieee80211_rxinfo rxi; struct ieee80211_node *ni; struct an_rxframe frmhdr; struct mbuf *m; u_int16_t status; int fid, gaplen, len, off; uint8_t *gap; fid = CSR_READ_2(sc, AN_RX_FID); /* First read in the frame header */ if (an_read_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr), sizeof(frmhdr)) != 0) { CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); ifp->if_ierrors++; DPRINTF(("an_rxeof: read fid %x failed\n", fid)); return; } an_swap16((u_int16_t *)&frmhdr.an_whdr, sizeof(struct ieee80211_frame)/2); status = frmhdr.an_rx_status; if ((status & AN_STAT_ERRSTAT) != 0 && ic->ic_opmode != IEEE80211_M_MONITOR) { CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); ifp->if_ierrors++; DPRINTF(("an_rxeof: fid %x status %x\n", fid, status)); return; } /* the payload length field includes a 16-bit "mystery field" */ len = frmhdr.an_rx_payload_len - sizeof(uint16_t); off = ALIGN(sizeof(struct ieee80211_frame)); if (off + len > MCLBYTES) { if (ic->ic_opmode != IEEE80211_M_MONITOR) { CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); ifp->if_ierrors++; DPRINTF(("an_rxeof: oversized packet %d\n", len)); return; } len = 0; } MGETHDR(m, M_DONTWAIT, MT_DATA); if (m == NULL) { CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); ifp->if_ierrors++; DPRINTF(("an_rxeof: MGET failed\n")); return; } if (off + len + AN_GAPLEN_MAX > MHLEN) { MCLGET(m, M_DONTWAIT); if ((m->m_flags & M_EXT) == 0) { CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); m_freem(m); ifp->if_ierrors++; DPRINTF(("an_rxeof: MCLGET failed\n")); return; } } m->m_data += off - sizeof(struct ieee80211_frame); if (ic->ic_opmode != IEEE80211_M_MONITOR) { gaplen = frmhdr.an_gaplen; if (gaplen > AN_GAPLEN_MAX) { CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); m_freem(m); ifp->if_ierrors++; DPRINTF(("%s: gap too long\n", __func__)); return; } /* * We don't need the 16-bit mystery field (payload length?), * so read it into the region reserved for the 802.11 header. * * When Cisco Aironet 350 cards w/ firmware version 5 or * greater operate with certain Cisco 350 APs, * the "gap" is filled with the SNAP header. Read * it in after the 802.11 header. */ gap = m->m_data + sizeof(struct ieee80211_frame) - sizeof(uint16_t); an_read_bap(sc, fid, -1, gap, gaplen + sizeof(u_int16_t), gaplen + sizeof(u_int16_t)); } else gaplen = 0; an_read_bap(sc, fid, -1, m->m_data + sizeof(struct ieee80211_frame) + gaplen, len, len); an_swap16((u_int16_t *)(m->m_data + sizeof(struct ieee80211_frame) + gaplen), (len+1)/2); m->m_pkthdr.len = m->m_len = sizeof(struct ieee80211_frame) + gaplen + len; memcpy(m->m_data, &frmhdr.an_whdr, sizeof(struct ieee80211_frame)); CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_RX); #if NBPFILTER > 0 if (sc->sc_drvbpf) { struct mbuf mb; struct an_rx_radiotap_header *tap = &sc->sc_rxtap; tap->ar_rate = frmhdr.an_rx_rate; tap->ar_antsignal = frmhdr.an_rx_signal_strength; tap->ar_chan_freq = ic->ic_bss->ni_chan->ic_freq; tap->ar_chan_flags = ic->ic_bss->ni_chan->ic_flags; mb.m_data = (caddr_t)tap; mb.m_len = sizeof(sc->sc_rxtapu); mb.m_next = m; mb.m_nextpkt = NULL; mb.m_type = 0; mb.m_flags = 0; bpf_mtap(sc->sc_drvbpf, &mb, BPF_DIRECTION_IN); } #endif /* NBPFILTER > 0 */ wh = mtod(m, struct ieee80211_frame *); memset(&rxi, 0, sizeof(rxi)); if (wh->i_fc[1] & IEEE80211_FC1_WEP) { /* * WEP is decrypted by hardware. Clear WEP bit * header for ieee80211_input(). */ wh->i_fc[1] &= ~IEEE80211_FC1_WEP; rxi.rxi_flags |= IEEE80211_RXI_HWDEC; } ni = ieee80211_find_rxnode(ic, wh); rxi.rxi_rssi = frmhdr.an_rx_signal_strength; rxi.rxi_tstamp = an_switch32(frmhdr.an_rx_time); ieee80211_input(ifp, m, ni, &rxi); ieee80211_release_node(ic, ni); } void an_txeof(struct an_softc *sc, u_int16_t status) { struct ifnet *ifp = &sc->sc_ic.ic_if; int cur, id; sc->sc_tx_timer = 0; ifq_clr_oactive(&ifp->if_snd); id = CSR_READ_2(sc, AN_TX_CMP_FID); CSR_WRITE_2(sc, AN_EVENT_ACK, status & (AN_EV_TX | AN_EV_TX_EXC)); if (status & AN_EV_TX_EXC) ifp->if_oerrors++; cur = sc->sc_txcur; if (sc->sc_txd[cur].d_fid == id) { sc->sc_txd[cur].d_inuse = 0; DPRINTF2(("an_txeof: sent %x/%d\n", id, cur)); AN_INC(cur, AN_TX_RING_CNT); sc->sc_txcur = cur; } else { for (cur = 0; cur < AN_TX_RING_CNT; cur++) { if (id == sc->sc_txd[cur].d_fid) { sc->sc_txd[cur].d_inuse = 0; break; } } if (ifp->if_flags & IFF_DEBUG) printf("%s: tx mismatch: " "expected %x(%d), actual %x(%d)\n", sc->sc_dev.dv_xname, sc->sc_txd[sc->sc_txcur].d_fid, sc->sc_txcur, id, cur); } } int an_intr(void *arg) { struct an_softc *sc = arg; struct ifnet *ifp = &sc->sc_ic.ic_if; int i; u_int16_t status; if (!sc->sc_enabled || sc->sc_invalid || (sc->sc_dev.dv_flags & DVF_ACTIVE) == 0 || (ifp->if_flags & IFF_RUNNING) == 0) return 0; if ((ifp->if_flags & IFF_UP) == 0) { CSR_WRITE_2(sc, AN_INT_EN, 0); CSR_WRITE_2(sc, AN_EVENT_ACK, ~0); return 1; } /* maximum 10 loops per interrupt */ for (i = 0; i < 10; i++) { if (!sc->sc_enabled || sc->sc_invalid) return 1; if (CSR_READ_2(sc, AN_SW0) != AN_MAGIC) { DPRINTF(("an_intr: magic number changed: %x\n", CSR_READ_2(sc, AN_SW0))); sc->sc_invalid = 1; return 1; } status = CSR_READ_2(sc, AN_EVENT_STAT); CSR_WRITE_2(sc, AN_EVENT_ACK, status & ~(AN_INTRS)); if ((status & AN_INTRS) == 0) break; if (status & AN_EV_RX) an_rxeof(sc); if (status & (AN_EV_TX | AN_EV_TX_EXC)) an_txeof(sc, status); if (status & AN_EV_LINKSTAT) an_linkstat_intr(sc); if (ifq_is_oactive(&ifp->if_snd) == 0 && sc->sc_ic.ic_state == IEEE80211_S_RUN && !ifq_empty(&ifp->if_snd)) an_start(ifp); } return 1; } /* Must be called at proper protection level! */ int an_cmd(struct an_softc *sc, int cmd, int val) { int i, stat; /* make sure previous command completed */ if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) { if (sc->sc_ic.ic_if.if_flags & IFF_DEBUG) printf("%s: command 0x%x busy\n", sc->sc_dev.dv_xname, CSR_READ_2(sc, AN_COMMAND)); CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); } CSR_WRITE_2(sc, AN_PARAM0, val); CSR_WRITE_2(sc, AN_PARAM1, 0); CSR_WRITE_2(sc, AN_PARAM2, 0); CSR_WRITE_2(sc, AN_COMMAND, cmd); if (cmd == AN_CMD_FW_RESTART) { /* XXX: should sleep here */ DELAY(100*1000); } for (i = 0; i < AN_TIMEOUT; i++) { if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) break; DELAY(10); } stat = CSR_READ_2(sc, AN_STATUS); /* clear stuck command busy if necessary */ if (CSR_READ_2(sc, AN_COMMAND) & AN_CMD_BUSY) CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CLR_STUCK_BUSY); /* Ack the command */ CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); if (i == AN_TIMEOUT) { if (sc->sc_ic.ic_if.if_flags & IFF_DEBUG) printf("%s: command 0x%x param 0x%x timeout\n", sc->sc_dev.dv_xname, cmd, val); return ETIMEDOUT; } if (stat & AN_STAT_CMD_RESULT) { if (sc->sc_ic.ic_if.if_flags & IFF_DEBUG) printf("%s: command 0x%x param 0x%x status 0x%x " "resp 0x%x 0x%x 0x%x\n", sc->sc_dev.dv_xname, cmd, val, stat, CSR_READ_2(sc, AN_RESP0), CSR_READ_2(sc, AN_RESP1), CSR_READ_2(sc, AN_RESP2)); return EIO; } return 0; } int an_reset(struct an_softc *sc) { DPRINTF(("an_reset\n")); if (!sc->sc_enabled) return ENXIO; an_cmd(sc, AN_CMD_ENABLE, 0); an_cmd(sc, AN_CMD_FW_RESTART, 0); an_cmd(sc, AN_CMD_NOOP2, 0); if (an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0) == ETIMEDOUT) { printf("%s: reset failed\n", sc->sc_dev.dv_xname); return ETIMEDOUT; } an_cmd(sc, AN_CMD_DISABLE, 0); return 0; } void an_linkstat_intr(struct an_softc *sc) { struct ieee80211com *ic = &sc->sc_ic; u_int16_t status; status = CSR_READ_2(sc, AN_LINKSTAT); CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_LINKSTAT); DPRINTF(("an_linkstat_intr: status 0x%x\n", status)); if (status == AN_LINKSTAT_ASSOCIATED) { if (ic->ic_state != IEEE80211_S_RUN #ifndef IEEE80211_STA_ONLY || ic->ic_opmode == IEEE80211_M_IBSS #endif ) ieee80211_new_state(ic, IEEE80211_S_RUN, -1); } else { if (ic->ic_opmode == IEEE80211_M_STA) ieee80211_new_state(ic, IEEE80211_S_INIT, -1); } } /* * Wait for firmware come up after power enabled. */ void an_wait(struct an_softc *sc) { int i; CSR_WRITE_2(sc, AN_COMMAND, AN_CMD_NOOP2); for (i = 0; i < 3000; i += 100) { if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_CMD) break; tsleep_nsec(sc, PWAIT, "anatch", MSEC_TO_NSEC(100)); } CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_CMD); } int an_read_bap(struct an_softc *sc, int id, int off, void *buf, int len, int blen) { int error, cnt, cnt2; if (len == 0 || blen == 0) return 0; if (off == -1) off = sc->sc_bap_off; if (id != sc->sc_bap_id || off != sc->sc_bap_off) { if ((error = an_seek_bap(sc, id, off)) != 0) return EIO; } cnt = (blen + 1) / 2; CSR_READ_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); for (cnt2 = (len + 1) / 2; cnt < cnt2; cnt++) (void) CSR_READ_2(sc, AN_DATA0); sc->sc_bap_off += cnt * 2; return 0; } int an_write_bap(struct an_softc *sc, int id, int off, void *buf, int buflen) { int error, cnt; if (buflen == 0) return 0; if (off == -1) off = sc->sc_bap_off; if (id != sc->sc_bap_id || off != sc->sc_bap_off) { if ((error = an_seek_bap(sc, id, off)) != 0) return EIO; } cnt = (buflen + 1) / 2; CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, (u_int16_t *)buf, cnt); sc->sc_bap_off += cnt * 2; return 0; } int an_seek_bap(struct an_softc *sc, int id, int off) { int i, status; CSR_WRITE_2(sc, AN_SEL0, id); CSR_WRITE_2(sc, AN_OFF0, off); for (i = 0; ; i++) { status = CSR_READ_2(sc, AN_OFF0); if ((status & AN_OFF_BUSY) == 0) break; if (i == AN_TIMEOUT) { printf("%s: timeout in an_seek_bap to 0x%x/0x%x\n", sc->sc_dev.dv_xname, id, off); sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ return ETIMEDOUT; } DELAY(10); } if (status & AN_OFF_ERR) { printf("%s: failed in an_seek_bap to 0x%x/0x%x\n", sc->sc_dev.dv_xname, id, off); sc->sc_bap_off = AN_OFF_ERR; /* invalidate */ return EIO; } sc->sc_bap_id = id; sc->sc_bap_off = off; return 0; } int an_mwrite_bap(struct an_softc *sc, int id, int off, struct mbuf *m, int totlen) { int error, len, cnt; if (off == -1) off = sc->sc_bap_off; if (id != sc->sc_bap_id || off != sc->sc_bap_off) { if ((error = an_seek_bap(sc, id, off)) != 0) return EIO; } for (len = 0; m != NULL; m = m->m_next) { if (m->m_len == 0) continue; len = min(m->m_len, totlen); if ((mtod(m, u_long) & 0x1) || (len & 0x1)) { m_copydata(m, 0, totlen, &sc->sc_buf.sc_txbuf); cnt = (totlen + 1) / 2; an_swap16((u_int16_t *)&sc->sc_buf.sc_txbuf, cnt); CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, sc->sc_buf.sc_val, cnt); off += cnt * 2; break; } cnt = len / 2; an_swap16((u_int16_t *)mtod(m, u_int16_t *), cnt); CSR_WRITE_MULTI_STREAM_2(sc, AN_DATA0, mtod(m, u_int16_t *), cnt); off += len; totlen -= len; } sc->sc_bap_off = off; return 0; } int an_alloc_nicmem(struct an_softc *sc, int len, int *idp) { int i; if (an_cmd(sc, AN_CMD_ALLOC_MEM, len)) { printf("%s: failed to allocate %d bytes on NIC\n", sc->sc_dev.dv_xname, len); return(ENOMEM); } for (i = 0; i < AN_TIMEOUT; i++) { if (CSR_READ_2(sc, AN_EVENT_STAT) & AN_EV_ALLOC) break; if (i == AN_TIMEOUT) { printf("%s: timeout in alloc\n", sc->sc_dev.dv_xname); return ETIMEDOUT; } DELAY(10); } *idp = CSR_READ_2(sc, AN_ALLOC_FID); CSR_WRITE_2(sc, AN_EVENT_ACK, AN_EV_ALLOC); return 0; } int an_read_rid(struct an_softc *sc, int rid, void *buf, int *buflenp) { int error; u_int16_t len; /* Tell the NIC to enter record read mode. */ error = an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_READ, rid); if (error) return error; /* length in byte, including length itself */ error = an_read_bap(sc, rid, 0, &len, sizeof(len), sizeof(len)); if (error) return error; len -= 2; return an_read_bap(sc, rid, sizeof(len), buf, len, *buflenp); } int an_write_rid(struct an_softc *sc, int rid, void *buf, int buflen) { int error; u_int16_t len; /* length in byte, including length itself */ len = buflen + 2; error = an_write_bap(sc, rid, 0, &len, sizeof(len)); if (error) return error; error = an_write_bap(sc, rid, sizeof(len), buf, buflen); if (error) return error; return an_cmd(sc, AN_CMD_ACCESS | AN_ACCESS_WRITE, rid); } int an_ioctl(struct ifnet *ifp, u_long command, caddr_t data) { struct an_softc *sc = ifp->if_softc; int s, error = 0; if ((sc->sc_dev.dv_flags & DVF_ACTIVE) == 0) return ENXIO; s = splnet(); switch(command) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; error = an_init(ifp); break; case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (sc->sc_enabled) { /* * To avoid rescanning another access point, * do not call an_init() here. Instead, only * reflect promisc mode settings. */ error = an_cmd(sc, AN_CMD_SET_MODE, (ifp->if_flags & IFF_PROMISC) ? 0xffff : 0); } else error = an_init(ifp); } else if (sc->sc_enabled) an_stop(ifp, 1); break; case SIOCADDMULTI: case SIOCDELMULTI: /* The Aironet has no multicast filter. */ error = 0; break; case SIOCS80211NWKEY: if ((error = suser(curproc)) != 0) break; error = an_set_nwkey(sc, (struct ieee80211_nwkey *)data); break; case SIOCG80211NWKEY: error = an_get_nwkey(sc, (struct ieee80211_nwkey *)data); break; default: error = ieee80211_ioctl(ifp, command, data); break; } if (error == ENETRESET) { if (sc->sc_enabled) error = an_init(ifp); else error = 0; } splx(s); return(error); } int an_init(struct ifnet *ifp) { struct an_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; int i, error, fid; DPRINTF(("an_init: enabled %d\n", sc->sc_enabled)); if (!sc->sc_enabled) { if (sc->sc_enable) (*sc->sc_enable)(sc); an_wait(sc); sc->sc_enabled = 1; } else { an_stop(ifp, 0); if ((error = an_reset(sc)) != 0) { printf("%s: failed to reset\n", ifp->if_xname); an_stop(ifp, 1); return error; } } CSR_WRITE_2(sc, AN_SW0, AN_MAGIC); /* Allocate the TX buffers */ for (i = 0; i < AN_TX_RING_CNT; i++) { if ((error = an_alloc_nicmem(sc, AN_TX_MAX_LEN, &fid)) != 0) { printf("%s: failed to allocate nic memory\n", ifp->if_xname); an_stop(ifp, 1); return error; } DPRINTF2(("an_init: txbuf %d allocated %x\n", i, fid)); sc->sc_txd[i].d_fid = fid; sc->sc_txd[i].d_inuse = 0; } sc->sc_txcur = sc->sc_txnext = 0; IEEE80211_ADDR_COPY(sc->sc_config.an_macaddr, ic->ic_myaddr); an_swap16((u_int16_t *)&sc->sc_config.an_macaddr, 3); sc->sc_config.an_scanmode = AN_SCANMODE_ACTIVE; sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN; /*XXX*/ if (ic->ic_flags & IEEE80211_F_WEPON) { sc->sc_config.an_authtype |= AN_AUTHTYPE_PRIVACY_IN_USE; } sc->sc_config.an_listen_interval = ic->ic_lintval; sc->sc_config.an_beacon_period = ic->ic_lintval; if (ic->ic_flags & IEEE80211_F_PMGTON) sc->sc_config.an_psave_mode = AN_PSAVE_PSP; else sc->sc_config.an_psave_mode = AN_PSAVE_CAM; sc->sc_config.an_ds_channel = ieee80211_chan2ieee(ic, ic->ic_ibss_chan); switch (ic->ic_opmode) { case IEEE80211_M_STA: sc->sc_config.an_opmode = AN_OPMODE_INFRASTRUCTURE_STATION; sc->sc_config.an_rxmode = AN_RXMODE_BC_MC_ADDR; break; #ifndef IEEE80211_STA_ONLY case IEEE80211_M_IBSS: sc->sc_config.an_opmode = AN_OPMODE_IBSS_ADHOC; sc->sc_config.an_rxmode = AN_RXMODE_BC_MC_ADDR; break; #endif case IEEE80211_M_MONITOR: sc->sc_config.an_opmode = AN_OPMODE_INFRASTRUCTURE_STATION; sc->sc_config.an_rxmode = AN_RXMODE_80211_MONITOR_ANYBSS; sc->sc_config.an_authtype = AN_AUTHTYPE_NONE; if (ic->ic_flags & IEEE80211_F_WEPON) sc->sc_config.an_authtype |= AN_AUTHTYPE_PRIVACY_IN_USE | AN_AUTHTYPE_ALLOW_UNENCRYPTED; break; default: printf("%s: bad opmode %d\n", ifp->if_xname, ic->ic_opmode); an_stop(ifp, 1); return EIO; } sc->sc_config.an_rxmode |= AN_RXMODE_NO_8023_HEADER; /* Set the ssid list */ memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_ssidlist)); sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid_len = ic->ic_des_esslen; if (ic->ic_des_esslen) memcpy(sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid, ic->ic_des_essid, ic->ic_des_esslen); an_swap16((u_int16_t *)&sc->sc_buf.sc_ssidlist.an_entry[0].an_ssid, 16); if ((error = an_write_rid(sc, AN_RID_SSIDLIST, &sc->sc_buf, sizeof(sc->sc_buf.sc_ssidlist)))) { printf("%s: failed to write ssid list\n", ifp->if_xname); an_stop(ifp, 1); return error; } /* Set the AP list */ memset(&sc->sc_buf, 0, sizeof(sc->sc_buf.sc_aplist)); (void)an_write_rid(sc, AN_RID_APLIST, &sc->sc_buf, sizeof(sc->sc_buf.sc_aplist)); /* Set the encapsulation */ for (i = 0; i < AN_ENCAP_NENTS; i++) { sc->sc_buf.sc_encap.an_entry[i].an_ethertype = 0; sc->sc_buf.sc_encap.an_entry[i].an_action = AN_RXENCAP_RFC1024 | AN_TXENCAP_RFC1024; } (void)an_write_rid(sc, AN_RID_ENCAP, &sc->sc_buf, sizeof(sc->sc_buf.sc_encap)); /* Set the WEP Keys */ if (ic->ic_flags & IEEE80211_F_WEPON) an_write_wepkey(sc, AN_RID_WEP_VOLATILE, sc->sc_wepkeys, sc->sc_tx_key); /* Set the configuration */ if ((error = an_write_rid(sc, AN_RID_GENCONFIG, &sc->sc_config, sizeof(sc->sc_config)))) { printf("%s: failed to write config\n", ifp->if_xname); an_stop(ifp, 1); return error; } /* Enable the MAC */ if (an_cmd(sc, AN_CMD_ENABLE, 0)) { printf("%s: failed to enable MAC\n", sc->sc_dev.dv_xname); an_stop(ifp, 1); return ENXIO; } if (ifp->if_flags & IFF_PROMISC) an_cmd(sc, AN_CMD_SET_MODE, 0xffff); ifp->if_flags |= IFF_RUNNING; ifq_clr_oactive(&ifp->if_snd); ic->ic_state = IEEE80211_S_INIT; if (ic->ic_opmode == IEEE80211_M_MONITOR) ieee80211_new_state(ic, IEEE80211_S_RUN, -1); /* enable interrupts */ CSR_WRITE_2(sc, AN_INT_EN, AN_INTRS); return 0; } void an_start(struct ifnet *ifp) { struct an_softc *sc = (struct an_softc *)ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; struct ieee80211_node *ni; struct ieee80211_frame *wh; struct an_txframe frmhdr; struct mbuf *m; u_int16_t len; int cur, fid; if (!sc->sc_enabled || sc->sc_invalid) { DPRINTF(("an_start: noop: enabled %d invalid %d\n", sc->sc_enabled, sc->sc_invalid)); return; } memset(&frmhdr, 0, sizeof(frmhdr)); cur = sc->sc_txnext; for (;;) { if (ic->ic_state != IEEE80211_S_RUN) { DPRINTF(("an_start: not running %d\n", ic->ic_state)); break; } m = ifq_deq_begin(&ifp->if_snd); if (m == NULL) { DPRINTF2(("an_start: no pending mbuf\n")); break; } if (sc->sc_txd[cur].d_inuse) { ifq_deq_rollback(&ifp->if_snd, m); DPRINTF2(("an_start: %x/%d busy\n", sc->sc_txd[cur].d_fid, cur)); ifq_set_oactive(&ifp->if_snd); break; } ifq_deq_commit(&ifp->if_snd, m); #if NBPFILTER > 0 if (ifp->if_bpf) bpf_mtap(ifp->if_bpf, m, BPF_DIRECTION_OUT); #endif if ((m = ieee80211_encap(ifp, m, &ni)) == NULL) { ifp->if_oerrors++; continue; } if (ni != NULL) ieee80211_release_node(ic, ni); #if NBPFILTER > 0 if (ic->ic_rawbpf) bpf_mtap(ic->ic_rawbpf, m, BPF_DIRECTION_OUT); #endif wh = mtod(m, struct ieee80211_frame *); if (ic->ic_flags & IEEE80211_F_WEPON) wh->i_fc[1] |= IEEE80211_FC1_WEP; m_copydata(m, 0, sizeof(struct ieee80211_frame), &frmhdr.an_whdr); an_swap16((u_int16_t *)&frmhdr.an_whdr, sizeof(struct ieee80211_frame)/2); /* insert payload length in front of llc/snap */ len = htons(m->m_pkthdr.len - sizeof(struct ieee80211_frame)); m_adj(m, sizeof(struct ieee80211_frame) - sizeof(len)); if (mtod(m, u_long) & 0x01) memcpy(mtod(m, caddr_t), &len, sizeof(len)); else *mtod(m, u_int16_t *) = len; /* * XXX Aironet firmware apparently convert the packet * with longer than 1500 bytes in length into LLC/SNAP. * If we have 1500 bytes in ethernet payload, it is * 1508 bytes including LLC/SNAP and will be inserted * additional LLC/SNAP header with 1501-1508 in its * ethertype !! * So we skip LLC/SNAP header and force firmware to * convert it to LLC/SNAP again. */ m_adj(m, sizeof(struct llc)); frmhdr.an_tx_ctl = AN_TXCTL_80211; frmhdr.an_tx_payload_len = m->m_pkthdr.len; frmhdr.an_gaplen = AN_TXGAP_802_11; if (ic->ic_fixed_rate != -1) frmhdr.an_tx_rate = ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ ic->ic_fixed_rate] & IEEE80211_RATE_VAL; else frmhdr.an_tx_rate = 0; if (sizeof(frmhdr) + AN_TXGAP_802_11 + sizeof(len) + m->m_pkthdr.len > AN_TX_MAX_LEN) { ifp->if_oerrors++; m_freem(m); continue; } #if NBPFILTER > 0 if (sc->sc_drvbpf) { struct mbuf mb; struct an_tx_radiotap_header *tap = &sc->sc_txtap; tap->at_rate = ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate]; tap->at_chan_freq = ic->ic_bss->ni_chan->ic_freq; tap->at_chan_flags = ic->ic_bss->ni_chan->ic_flags; mb.m_data = (caddr_t)tap; mb.m_len = sizeof(sc->sc_txtapu); mb.m_next = m; mb.m_nextpkt = NULL; mb.m_type = 0; mb.m_flags = 0; bpf_mtap(sc->sc_drvbpf, m, BPF_DIRECTION_OUT); } #endif fid = sc->sc_txd[cur].d_fid; if (an_write_bap(sc, fid, 0, &frmhdr, sizeof(frmhdr)) != 0) { ifp->if_oerrors++; m_freem(m); continue; } /* dummy write to avoid seek. */ an_write_bap(sc, fid, -1, &frmhdr, AN_TXGAP_802_11); an_mwrite_bap(sc, fid, -1, m, m->m_pkthdr.len); m_freem(m); DPRINTF2(("an_start: send %d byte via %x/%d\n", ntohs(len) + sizeof(struct ieee80211_frame), fid, cur)); sc->sc_txd[cur].d_inuse = 1; if (an_cmd(sc, AN_CMD_TX, fid)) { printf("%s: xmit failed\n", ifp->if_xname); sc->sc_txd[cur].d_inuse = 0; continue; } sc->sc_tx_timer = 5; ifp->if_timer = 1; AN_INC(cur, AN_TX_RING_CNT); sc->sc_txnext = cur; } } void an_stop(struct ifnet *ifp, int disable) { struct an_softc *sc = ifp->if_softc; int i, s; if (!sc->sc_enabled) return; DPRINTF(("an_stop: disable %d\n", disable)); s = splnet(); ieee80211_new_state(&sc->sc_ic, IEEE80211_S_INIT, -1); if (!sc->sc_invalid) { an_cmd(sc, AN_CMD_FORCE_SYNCLOSS, 0); CSR_WRITE_2(sc, AN_INT_EN, 0); an_cmd(sc, AN_CMD_DISABLE, 0); for (i = 0; i < AN_TX_RING_CNT; i++) an_cmd(sc, AN_CMD_DEALLOC_MEM, sc->sc_txd[i].d_fid); } sc->sc_tx_timer = 0; ifp->if_timer = 0; ifp->if_flags &= ~IFF_RUNNING; ifq_clr_oactive(&ifp->if_snd); if (disable) { if (sc->sc_disable) (*sc->sc_disable)(sc); sc->sc_enabled = 0; } splx(s); } void an_watchdog(struct ifnet *ifp) { struct an_softc *sc = ifp->if_softc; if (!sc->sc_enabled) return; if (sc->sc_tx_timer) { if (--sc->sc_tx_timer == 0) { printf("%s: device timeout\n", ifp->if_xname); ifp->if_oerrors++; an_init(ifp); return; } ifp->if_timer = 1; } ieee80211_watchdog(ifp); } /* TBD factor with ieee80211_media_change */ int an_media_change(struct ifnet *ifp) { struct an_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; struct ifmedia_entry *ime; enum ieee80211_opmode newmode; int i, rate, error = 0; ime = ic->ic_media.ifm_cur; if (IFM_SUBTYPE(ime->ifm_media) == IFM_AUTO) { i = -1; } else { struct ieee80211_rateset *rs = &ic->ic_sup_rates[IEEE80211_MODE_11B]; rate = ieee80211_media2rate(ime->ifm_media); if (rate == 0) return EINVAL; for (i = 0; i < rs->rs_nrates; i++) { if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate) break; } if (i == rs->rs_nrates) return EINVAL; } if (ic->ic_fixed_rate != i) { ic->ic_fixed_rate = i; error = ENETRESET; } #ifndef IEEE80211_STA_ONLY if (ime->ifm_media & IFM_IEEE80211_ADHOC) newmode = IEEE80211_M_IBSS; else if (ime->ifm_media & IFM_IEEE80211_HOSTAP) newmode = IEEE80211_M_HOSTAP; else #endif if (ime->ifm_media & IFM_IEEE80211_MONITOR) newmode = IEEE80211_M_MONITOR; else newmode = IEEE80211_M_STA; if (ic->ic_opmode != newmode) { ic->ic_opmode = newmode; error = ENETRESET; } if (error == ENETRESET) { if (sc->sc_enabled) error = an_init(ifp); else error = 0; } ifp->if_baudrate = ifmedia_baudrate(ic->ic_media.ifm_cur->ifm_media); return error; } void an_media_status(struct ifnet *ifp, struct ifmediareq *imr) { struct an_softc *sc = ifp->if_softc; struct ieee80211com *ic = &sc->sc_ic; int rate, buflen; if (sc->sc_enabled == 0) { imr->ifm_active = IFM_IEEE80211 | IFM_NONE; imr->ifm_status = 0; return; } imr->ifm_status = IFM_AVALID; imr->ifm_active = IFM_IEEE80211; if (ic->ic_state == IEEE80211_S_RUN) imr->ifm_status |= IFM_ACTIVE; buflen = sizeof(sc->sc_buf); if (ic->ic_fixed_rate != -1) rate = ic->ic_sup_rates[IEEE80211_MODE_11B].rs_rates[ ic->ic_fixed_rate] & IEEE80211_RATE_VAL; else if (an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen) != 0) rate = 0; else rate = sc->sc_buf.sc_status.an_current_tx_rate; imr->ifm_active |= ieee80211_rate2media(ic, rate, IEEE80211_MODE_11B); switch (ic->ic_opmode) { case IEEE80211_M_STA: break; #ifndef IEEE80211_STA_ONLY case IEEE80211_M_IBSS: imr->ifm_active |= IFM_IEEE80211_ADHOC; break; case IEEE80211_M_HOSTAP: imr->ifm_active |= IFM_IEEE80211_HOSTAP; break; #endif case IEEE80211_M_MONITOR: imr->ifm_active |= IFM_IEEE80211_MONITOR; break; default: break; } } int an_set_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) { int error; struct ieee80211com *ic = &sc->sc_ic; u_int16_t prevauth; error = 0; prevauth = sc->sc_config.an_authtype; switch (nwkey->i_wepon) { case IEEE80211_NWKEY_OPEN: sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN; ic->ic_flags &= ~IEEE80211_F_WEPON; break; case IEEE80211_NWKEY_WEP: case IEEE80211_NWKEY_WEP | IEEE80211_NWKEY_PERSIST: error = an_set_nwkey_wep(sc, nwkey); if (error == 0 || error == ENETRESET) { sc->sc_config.an_authtype = AN_AUTHTYPE_OPEN | AN_AUTHTYPE_PRIVACY_IN_USE; ic->ic_flags |= IEEE80211_F_WEPON; } break; default: error = EINVAL; break; } if (error == 0 && prevauth != sc->sc_config.an_authtype) error = ENETRESET; return error; } int an_set_nwkey_wep(struct an_softc *sc, struct ieee80211_nwkey *nwkey) { int i, txkey, anysetkey, needreset, error; struct an_wepkey keys[IEEE80211_WEP_NKID]; error = 0; memset(keys, 0, sizeof(keys)); anysetkey = needreset = 0; /* load argument and sanity check */ for (i = 0; i < IEEE80211_WEP_NKID; i++) { keys[i].an_wep_keylen = nwkey->i_key[i].i_keylen; if (keys[i].an_wep_keylen < 0) continue; if (keys[i].an_wep_keylen != 0 && keys[i].an_wep_keylen < IEEE80211_WEP_KEYLEN) return EINVAL; if (keys[i].an_wep_keylen > sizeof(keys[i].an_wep_key)) return EINVAL; if ((error = copyin(nwkey->i_key[i].i_keydat, keys[i].an_wep_key, keys[i].an_wep_keylen)) != 0) return error; anysetkey++; } txkey = nwkey->i_defkid - 1; if (txkey >= 0) { if (txkey >= IEEE80211_WEP_NKID) return EINVAL; /* default key must have a valid value */ if (keys[txkey].an_wep_keylen == 0 || (keys[txkey].an_wep_keylen < 0 && sc->sc_perskeylen[txkey] == 0)) return EINVAL; anysetkey++; } DPRINTF(("an_set_nwkey_wep: %s: %sold(%d:%d,%d,%d,%d) " "pers(%d:%d,%d,%d,%d) new(%d:%d,%d,%d,%d)\n", sc->sc_dev.dv_xname, ((nwkey->i_wepon & IEEE80211_NWKEY_PERSIST) ? "persist: " : ""), sc->sc_tx_key, sc->sc_wepkeys[0].an_wep_keylen, sc->sc_wepkeys[1].an_wep_keylen, sc->sc_wepkeys[2].an_wep_keylen, sc->sc_wepkeys[3].an_wep_keylen, sc->sc_tx_perskey, sc->sc_perskeylen[0], sc->sc_perskeylen[1], sc->sc_perskeylen[2], sc->sc_perskeylen[3], txkey, keys[0].an_wep_keylen, keys[1].an_wep_keylen, keys[2].an_wep_keylen, keys[3].an_wep_keylen)); if (!(nwkey->i_wepon & IEEE80211_NWKEY_PERSIST)) { /* set temporary keys */ sc->sc_tx_key = txkey; for (i = 0; i < IEEE80211_WEP_NKID; i++) { if (keys[i].an_wep_keylen < 0) continue; memcpy(&sc->sc_wepkeys[i], &keys[i], sizeof(keys[i])); } } else { /* set persist keys */ if (anysetkey) { /* prepare to write nvram */ if (!sc->sc_enabled) { if (sc->sc_enable) (*sc->sc_enable)(sc); an_wait(sc); sc->sc_enabled = 1; error = an_write_wepkey(sc, AN_RID_WEP_PERSISTENT, keys, txkey); if (sc->sc_disable) (*sc->sc_disable)(sc); sc->sc_enabled = 0; } else { an_cmd(sc, AN_CMD_DISABLE, 0); error = an_write_wepkey(sc, AN_RID_WEP_PERSISTENT, keys, txkey); an_cmd(sc, AN_CMD_ENABLE, 0); } if (error) return error; } if (txkey >= 0) sc->sc_tx_perskey = txkey; if (sc->sc_tx_key >= 0) { sc->sc_tx_key = -1; needreset++; } for (i = 0; i < IEEE80211_WEP_NKID; i++) { if (sc->sc_wepkeys[i].an_wep_keylen >= 0) { memset(&sc->sc_wepkeys[i].an_wep_key, 0, sizeof(sc->sc_wepkeys[i].an_wep_key)); sc->sc_wepkeys[i].an_wep_keylen = -1; needreset++; } if (keys[i].an_wep_keylen >= 0) sc->sc_perskeylen[i] = keys[i].an_wep_keylen; } } if (needreset) { /* firmware restart to reload persistent key */ an_reset(sc); } if (anysetkey || needreset) error = ENETRESET; return error; } int an_get_nwkey(struct an_softc *sc, struct ieee80211_nwkey *nwkey) { int i; if (sc->sc_config.an_authtype & AN_AUTHTYPE_LEAP) nwkey->i_wepon = IEEE80211_NWKEY_EAP; else if (sc->sc_config.an_authtype & AN_AUTHTYPE_PRIVACY_IN_USE) nwkey->i_wepon = IEEE80211_NWKEY_WEP; else nwkey->i_wepon = IEEE80211_NWKEY_OPEN; if (sc->sc_tx_key == -1) nwkey->i_defkid = sc->sc_tx_perskey + 1; else nwkey->i_defkid = sc->sc_tx_key + 1; if (nwkey->i_key[0].i_keydat == NULL) return 0; for (i = 0; i < IEEE80211_WEP_NKID; i++) { if (nwkey->i_key[i].i_keydat == NULL) continue; /* do not show any keys to userland */ return EPERM; } return 0; } int an_write_wepkey(struct an_softc *sc, int type, struct an_wepkey *keys, int kid) { int i, error; struct an_rid_wepkey *akey; error = 0; akey = &sc->sc_buf.sc_wepkey; for (i = 0; i < IEEE80211_WEP_NKID; i++) { memset(akey, 0, sizeof(struct an_rid_wepkey)); if (keys[i].an_wep_keylen < 0 || keys[i].an_wep_keylen > sizeof(akey->an_key)) continue; akey->an_key_len = keys[i].an_wep_keylen; akey->an_key_index = i; akey->an_mac_addr[0] = 1; /* default mac */ an_swap16((u_int16_t *)&akey->an_mac_addr, 3); memcpy(akey->an_key, keys[i].an_wep_key, keys[i].an_wep_keylen); an_swap16((u_int16_t *)&akey->an_key, 8); if ((error = an_write_rid(sc, type, akey, sizeof(*akey))) != 0) return error; } if (kid >= 0) { memset(akey, 0, sizeof(struct an_rid_wepkey)); akey->an_key_index = 0xffff; akey->an_mac_addr[0] = kid; an_swap16((u_int16_t *)&akey->an_mac_addr, 3); akey->an_key_len = 0; memset(akey->an_key, 0, sizeof(akey->an_key)); error = an_write_rid(sc, type, akey, sizeof(*akey)); } return error; } int an_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) { struct an_softc *sc = ic->ic_softc; struct ieee80211_node *ni = ic->ic_bss; enum ieee80211_state ostate; int buflen; ostate = ic->ic_state; DPRINTF(("an_newstate: %s -> %s\n", ieee80211_state_name[ostate], ieee80211_state_name[nstate])); switch (nstate) { case IEEE80211_S_INIT: ic->ic_flags &= ~IEEE80211_F_IBSSON; return (*sc->sc_newstate)(ic, nstate, arg); case IEEE80211_S_RUN: buflen = sizeof(sc->sc_buf); an_read_rid(sc, AN_RID_STATUS, &sc->sc_buf, &buflen); an_swap16((u_int16_t *)&sc->sc_buf.sc_status.an_cur_bssid, 3); an_swap16((u_int16_t *)&sc->sc_buf.sc_status.an_ssid, 16); IEEE80211_ADDR_COPY(ni->ni_bssid, sc->sc_buf.sc_status.an_cur_bssid); IEEE80211_ADDR_COPY(ni->ni_macaddr, ni->ni_bssid); ni->ni_chan = &ic->ic_channels[ sc->sc_buf.sc_status.an_cur_channel]; ni->ni_esslen = sc->sc_buf.sc_status.an_ssidlen; if (ni->ni_esslen > IEEE80211_NWID_LEN) ni->ni_esslen = IEEE80211_NWID_LEN; /*XXX*/ memcpy(ni->ni_essid, sc->sc_buf.sc_status.an_ssid, ni->ni_esslen); ni->ni_rates = ic->ic_sup_rates[IEEE80211_MODE_11B]; /*XXX*/ if (ic->ic_if.if_flags & IFF_DEBUG) { printf("%s: ", sc->sc_dev.dv_xname); if (ic->ic_opmode == IEEE80211_M_STA) printf("associated "); else printf("synchronized "); printf("with %s ssid ", ether_sprintf(ni->ni_bssid)); ieee80211_print_essid(ni->ni_essid, ni->ni_esslen); printf(" channel %u start %uMb\n", sc->sc_buf.sc_status.an_cur_channel, sc->sc_buf.sc_status.an_current_tx_rate/2); } break; default: break; } ic->ic_state = nstate; /* skip standard ieee80211 handling */ return 0; } int an_detach(struct an_softc *sc) { struct ifnet *ifp = &sc->sc_ic.ic_if; int s; if (!sc->sc_attached) return 0; s = splnet(); sc->sc_invalid = 1; an_stop(ifp, 1); ifmedia_delete_instance(&sc->sc_ic.ic_media, IFM_INST_ANY); ieee80211_ifdetach(ifp); if_detach(ifp); splx(s); return 0; }