/* * Update the dynamic parts of a beacon frame based on the current state. */ int ieee80211_beacon_update(struct ieee80211_node *ni, struct ieee80211_beacon_offsets *bo, struct sk_buff *skb, int mcast) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; int len_changed = 0; u_int16_t capinfo; IEEE80211_LOCK(ic); if ((ic->ic_flags & IEEE80211_F_DOTH) && (vap->iv_flags & IEEE80211_F_CHANSWITCH) && (vap->iv_chanchange_count == ic->ic_chanchange_tbtt)) { u_int8_t *frm; struct ieee80211_channel *c; vap->iv_chanchange_count = 0; IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: reinit beacon\n", __func__); /* * NB: ic_bsschan is in the DSPARMS beacon IE, so must set this * prior to the beacon re-init, below. */ c = ieee80211_doth_findchan(vap, ic->ic_chanchange_chan); if (c == NULL) { IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: find channel failure\n", __func__); IEEE80211_UNLOCK(ic); return 0; } ic->ic_bsschan = c; skb_pull(skb, sizeof(struct ieee80211_frame)); skb_trim(skb, 0); frm = skb->data; skb_put(skb, ieee80211_beacon_init(ni, bo, frm) - frm); skb_push(skb, sizeof(struct ieee80211_frame)); vap->iv_flags &= ~IEEE80211_F_CHANSWITCH; ic->ic_flags &= ~IEEE80211_F_CHANSWITCH; /* NB: only for the first VAP to get here */ if (ic->ic_curchan != c) { ic->ic_curchan = c; ic->ic_set_channel(ic); } len_changed = 1; } /* XXX faster to recalculate entirely or just changes? */ if (vap->iv_opmode == IEEE80211_M_IBSS) capinfo = IEEE80211_CAPINFO_IBSS; else capinfo = IEEE80211_CAPINFO_ESS; if (vap->iv_flags & IEEE80211_F_PRIVACY) capinfo |= IEEE80211_CAPINFO_PRIVACY; if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && IEEE80211_IS_CHAN_2GHZ(ic->ic_bsschan)) capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; if (ic->ic_flags & IEEE80211_F_SHSLOT) capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; if (ic->ic_flags & IEEE80211_F_DOTH) capinfo |= IEEE80211_CAPINFO_SPECTRUM_MGMT; *bo->bo_caps = htole16(capinfo); if (vap->iv_flags & IEEE80211_F_WME) { struct ieee80211_wme_state *wme = &ic->ic_wme; /* * Check for aggressive mode change. When there is * significant high priority traffic in the BSS * throttle back BE traffic by using conservative * parameters. Otherwise BE uses aggressive params * to optimize performance of legacy/non-QoS traffic. */ if (wme->wme_flags & WME_F_AGGRMODE) { if (wme->wme_hipri_traffic > wme->wme_hipri_switch_thresh) { IEEE80211_NOTE(vap, IEEE80211_MSG_WME, ni, "%s: traffic %u, disable aggressive mode", __func__, wme->wme_hipri_traffic); wme->wme_flags &= ~WME_F_AGGRMODE; ieee80211_wme_updateparams_locked(vap); wme->wme_hipri_traffic = wme->wme_hipri_switch_hysteresis; } else wme->wme_hipri_traffic = 0; } else { if (wme->wme_hipri_traffic <= wme->wme_hipri_switch_thresh) { IEEE80211_NOTE(vap, IEEE80211_MSG_WME, ni, "%s: traffic %u, enable aggressive mode", __func__, wme->wme_hipri_traffic); wme->wme_flags |= WME_F_AGGRMODE; ieee80211_wme_updateparams_locked(vap); wme->wme_hipri_traffic = 0; } else wme->wme_hipri_traffic = wme->wme_hipri_switch_hysteresis; } /* XXX multi-bss */ if (vap->iv_flags & IEEE80211_F_WMEUPDATE) { (void) ieee80211_add_wme_param(bo->bo_wme, wme, IEEE80211_VAP_UAPSD_ENABLED(vap)); vap->iv_flags &= ~IEEE80211_F_WMEUPDATE; } } if (vap->iv_opmode == IEEE80211_M_HOSTAP) { /* NB: no IBSS support*/ struct ieee80211_tim_ie *tie = (struct ieee80211_tim_ie *) bo->bo_tim; if (vap->iv_flags & IEEE80211_F_TIMUPDATE) { u_int timlen, timoff, i; /* * ATIM/DTIM needs updating. If it fits in the * current space allocated then just copy in the * new bits. Otherwise we need to move any trailing * data to make room. Note that we know there is * contiguous space because ieee80211_beacon_allocate * ensures there is space in the mbuf to write a * maximal-size virtual bitmap (based on ic_max_aid). */ /* * Calculate the bitmap size and offset, copy any * trailer out of the way, and then copy in the * new bitmap and update the information element. * Note that the tim bitmap must contain at least * one byte and any offset must be even. */ if (vap->iv_ps_pending != 0) { timoff = 128; /* impossibly large */ for (i = 0; i < vap->iv_tim_len; i++) if (vap->iv_tim_bitmap[i]) { timoff = i &~ 1; break; } KASSERT(timoff != 128, ("tim bitmap empty!")); for (i = vap->iv_tim_len-1; i >= timoff; i--) if (vap->iv_tim_bitmap[i]) break; timlen = 1 + (i - timoff); } else { timoff = 0; timlen = 1; } if (timlen != bo->bo_tim_len) { /* copy up/down trailer */ int trailer_adjust = (tie->tim_bitmap+timlen) - (bo->bo_tim_trailer); memmove(tie->tim_bitmap+timlen, bo->bo_tim_trailer, bo->bo_tim_trailerlen); bo->bo_tim_trailer = tie->tim_bitmap+timlen; bo->bo_chanswitch += trailer_adjust; bo->bo_wme += trailer_adjust; bo->bo_erp += trailer_adjust; bo->bo_ath_caps += trailer_adjust; bo->bo_xr += trailer_adjust; if (timlen > bo->bo_tim_len) skb_put(skb, timlen - bo->bo_tim_len); else skb_trim(skb, skb->len - (bo->bo_tim_len - timlen)); bo->bo_tim_len = timlen; /* update information element */ tie->tim_len = 3 + timlen; tie->tim_bitctl = timoff; len_changed = 1; } memcpy(tie->tim_bitmap, vap->iv_tim_bitmap + timoff, bo->bo_tim_len); vap->iv_flags &= ~IEEE80211_F_TIMUPDATE; IEEE80211_NOTE(vap, IEEE80211_MSG_POWER, ni, "%s: TIM updated, pending %u, off %u, len %u", __func__, vap->iv_ps_pending, timoff, timlen); } /* count down DTIM period */ if (tie->tim_count == 0) tie->tim_count = tie->tim_period - 1; else tie->tim_count--; /* update state for buffered multicast frames on DTIM */ if (mcast && (tie->tim_count == 0)) tie->tim_bitctl |= 1; else tie->tim_bitctl &= ~1; if ((ic->ic_flags & IEEE80211_F_DOTH) && (ic->ic_flags & IEEE80211_F_CHANSWITCH)) { if (!vap->iv_chanchange_count) { vap->iv_flags |= IEEE80211_F_CHANSWITCH; /* copy out trailer to open up a slot */ memmove(bo->bo_chanswitch + IEEE80211_CHANSWITCHANN_BYTES, bo->bo_chanswitch, bo->bo_chanswitch_trailerlen); /* add ie in opened slot */ bo->bo_chanswitch[0] = IEEE80211_ELEMID_CHANSWITCHANN; bo->bo_chanswitch[1] = 3; /* fixed length */ bo->bo_chanswitch[2] = 1; /* stas get off for now */ bo->bo_chanswitch[3] = ic->ic_chanchange_chan; bo->bo_chanswitch[4] = ic->ic_chanchange_tbtt; /* update the trailer lens */ bo->bo_chanswitch_trailerlen += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_tim_trailerlen += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_wme += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_erp += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_ath_caps += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_xr += IEEE80211_CHANSWITCHANN_BYTES; /* indicate new beacon length so other layers may manage memory */ skb_put(skb, IEEE80211_CHANSWITCHANN_BYTES); len_changed = 1; } else bo->bo_chanswitch[4]--; vap->iv_chanchange_count++; IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: CHANSWITCH IE, change in %d\n", __func__, bo->bo_chanswitch[4]); } #ifdef ATH_SUPERG_XR if (vap->iv_flags & IEEE80211_F_XRUPDATE) { if (vap->iv_xrvap) (void) ieee80211_add_xr_param(bo->bo_xr, vap); vap->iv_flags &= ~IEEE80211_F_XRUPDATE; } #endif if (ic->ic_flags_ext & IEEE80211_FEXT_ERPUPDATE) { (void) ieee80211_add_erp(bo->bo_erp, ic); ic->ic_flags_ext &= ~IEEE80211_FEXT_ERPUPDATE; } } /* if it is a mode change beacon for dynamic turbo case */ if (((ic->ic_ath_cap & IEEE80211_ATHC_BOOST) != 0) ^ IEEE80211_IS_CHAN_TURBO(ic->ic_curchan)) ieee80211_add_athAdvCap(bo->bo_ath_caps, vap->iv_bss->ni_ath_flags, vap->iv_bss->ni_ath_defkeyindex); /* add APP_IE buffer if app updated it */ if (vap->iv_flags_ext & IEEE80211_FEXT_APPIE_UPDATE) { /* adjust the buffer size if the size is changed */ if (vap->app_ie[IEEE80211_APPIE_FRAME_BEACON].length != bo->bo_appie_buf_len) { int diff_len; diff_len = vap->app_ie[IEEE80211_APPIE_FRAME_BEACON].length - bo->bo_appie_buf_len; if (diff_len > 0) skb_put(skb, diff_len); else skb_trim(skb, skb->len + diff_len); bo->bo_appie_buf_len = vap->app_ie[IEEE80211_APPIE_FRAME_BEACON].length; /* update the trailer lens */ bo->bo_chanswitch_trailerlen += diff_len; bo->bo_tim_trailerlen += diff_len; len_changed = 1; } memcpy(bo->bo_appie_buf,vap->app_ie[IEEE80211_APPIE_FRAME_BEACON].ie, vap->app_ie[IEEE80211_APPIE_FRAME_BEACON].length); vap->iv_flags_ext &= ~IEEE80211_FEXT_APPIE_UPDATE; } IEEE80211_UNLOCK(ic); return len_changed; }
/* * Update the dynamic parts of a beacon frame based on the current state. */ int ieee80211_beacon_update(struct ieee80211_node *ni, struct ieee80211_beacon_offsets *bo, wbuf_t wbuf, int mcast) { struct ieee80211vap *vap = ni->ni_vap; struct ieee80211com *ic = ni->ni_ic; int len_changed = 0; u_int16_t capinfo; struct ieee80211_frame *wh = (struct ieee80211_frame *)wbuf_header(wbuf); int enable_htrates; bool update_beacon_copy = false; #if ATH_SUPPORT_IBSS_DFS struct ieee80211_ibssdfs_ie *ibss_ie = NULL; #endif /* ATH_SUPPORT_IBSS_DFS */ /* If Beacon Tx is suspended, then don't send this beacon */ if (ieee80211_mlme_beacon_suspend_state(vap)) { IEEE80211_DPRINTF(vap, IEEE80211_MSG_MLME, "%s: skip Tx beacon during to suspend.\n", __func__); return -1; } /* * if vap is paused do not send any beacons to prevent transmitting beacons on wrong channel. */ if (ieee80211_vap_is_paused(vap)) return -1; /* use the non-QoS sequence number space for BSS node */ /* to avoid sw generated frame sequence the same as H/W generated frame, * the value lower than min_sw_seq is reserved for HW generated frame */ if ((ni->ni_txseqs[IEEE80211_NON_QOS_SEQ]& IEEE80211_SEQ_MASK) < MIN_SW_SEQ){ ni->ni_txseqs[IEEE80211_NON_QOS_SEQ] = MIN_SW_SEQ; } *(u_int16_t *)&wh->i_seq[0] = htole16(ni->ni_txseqs[IEEE80211_NON_QOS_SEQ] << IEEE80211_SEQ_SEQ_SHIFT); ni->ni_txseqs[IEEE80211_NON_QOS_SEQ]++; /* Check if channel change due to CW interference needs to be done. * Since this is a drastic channel change, we do not wait for the TBTT interval to expair and * do not send Channel change flag in beacon */ /* AUTELAN-Added-Begin : &tuqiang for openessid*/ if(openessid_param & OPENESSID_ENABLE_MASK) vap->channel_change_done = 1; /* AUTELAN-Added-End : [email protected] */ if (vap->channel_change_done) { u_int8_t *frm; IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: reinit beacon\n", __func__); /* * NB: iv_bsschan is in the DSPARMS beacon IE, so must set this * prior to the beacon re-init, below. */ frm = (u_int8_t *) wbuf_header(wbuf) + sizeof(struct ieee80211_frame); frm = ieee80211_beacon_init(ni, bo, frm); update_beacon_copy = true; wbuf_set_pktlen(wbuf, (frm - (u_int8_t *)wbuf_header(wbuf))); len_changed = 1; vap->channel_change_done = 0; if ( ic->cw_inter_found) ic->cw_inter_found = 0; } if (ieee80211_ic_doth_is_set(ic) && (vap->iv_flags & IEEE80211_F_CHANSWITCH) && (vap->iv_chanchange_count == ic->ic_chanchange_tbtt) #ifdef MAGPIE_HIF_GMAC && !ic->ic_chanchange_cnt) { #else ) { #endif u_int8_t *frm; struct ieee80211_channel *c; vap->iv_chanchange_count = 0; IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: reinit beacon\n", __func__); /* * NB: iv_bsschan is in the DSPARMS beacon IE, so must set this * prior to the beacon re-init, below. */ c = ieee80211_doth_findchan(vap, ic->ic_chanchange_chan); if (c == NULL) { IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: find channel failure\n", __func__); return 0; } vap->iv_bsschan = c; frm = (u_int8_t *) wbuf_header(wbuf) + sizeof(struct ieee80211_frame); frm = ieee80211_beacon_init(ni, bo, frm); update_beacon_copy = true; wbuf_set_pktlen(wbuf, (frm - (u_int8_t *)wbuf_header(wbuf))); vap->iv_flags &= ~IEEE80211_F_CHANSWITCH; #ifdef MAGPIE_HIF_GMAC vap->iv_chanswitch = 0; #endif ic->ic_flags &= ~IEEE80211_F_CHANSWITCH; #if ATH_SUPPORT_IBSS_DFS if(vap->iv_opmode == IEEE80211_M_IBSS) { if (IEEE80211_ADDR_EQ(vap->iv_ibssdfs_ie_data.owner, vap->iv_myaddr)) { vap->iv_ibssdfs_state = IEEE80211_IBSSDFS_OWNER; } else { vap->iv_ibssdfs_state = IEEE80211_IBSSDFS_JOINER; } } #endif /* NB: only for the first VAP to get here */ if (ic->ic_curchan != c) { ieee80211_set_channel(ic, c); } len_changed = 1; } /*Begin:zhanghu added for beacon_frame rate support*/ else if(ic->ic_rate_mask != ic->ic_rate_mask_bak || \ ic->ic_mcs_mask != ic->ic_mcs_mask_bak){ u_int8_t *frm = NULL; frm = (u_int8_t *) wbuf_header(wbuf) + sizeof(struct ieee80211_frame); frm = ieee80211_beacon_init(ni, bo, frm); update_beacon_copy = true; wbuf_set_pktlen(wbuf, (frm - (u_int8_t *)wbuf_header(wbuf))); len_changed = 1; } /*End:zhanghu added for beacon_frame rate support*/ /* XXX faster to recalculate entirely or just changes? */ if (vap->iv_opmode == IEEE80211_M_IBSS) capinfo = IEEE80211_CAPINFO_IBSS; else capinfo = IEEE80211_CAPINFO_ESS; if (IEEE80211_VAP_IS_PRIVACY_ENABLED(vap)) capinfo |= IEEE80211_CAPINFO_PRIVACY; if ((ic->ic_flags & IEEE80211_F_SHPREAMBLE) && IEEE80211_IS_CHAN_2GHZ(vap->iv_bsschan)) capinfo |= IEEE80211_CAPINFO_SHORT_PREAMBLE; if (ic->ic_flags & IEEE80211_F_SHSLOT) capinfo |= IEEE80211_CAPINFO_SHORT_SLOTTIME; if (ieee80211_ic_doth_is_set(ic) && ieee80211_vap_doth_is_set(vap)) capinfo |= IEEE80211_CAPINFO_SPECTRUM_MGMT; if (IEEE80211_VAP_IS_PUREB_ENABLED(vap)){ capinfo &= ~IEEE80211_CAPINFO_SHORT_SLOTTIME; } *bo->bo_caps = htole16(capinfo); if (ieee80211_vap_wme_is_set(vap) && #if ATH_SUPPORT_IBSS_WMM (vap->iv_opmode == IEEE80211_M_HOSTAP || vap->iv_opmode == IEEE80211_M_IBSS)) { #else vap->iv_opmode == IEEE80211_M_HOSTAP) { #endif struct ieee80211_wme_state *wme = &ic->ic_wme; /* XXX multi-bss */ if (vap->iv_flags & IEEE80211_F_WMEUPDATE) { (void) ieee80211_add_wme_param(bo->bo_wme, wme, IEEE80211_VAP_IS_UAPSD_ENABLED(vap)); update_beacon_copy = true; vap->iv_flags &= ~IEEE80211_F_WMEUPDATE; } } enable_htrates = ieee80211vap_htallowed(vap); /* * HT cap. check for vap is done in ieee80211vap_htallowed. * TBD: remove iv_bsschan check to support multiple channel operation. */ if (IEEE80211_IS_CHAN_11N(vap->iv_bsschan) && enable_htrates) { struct ieee80211_ie_htinfo_cmn *htinfo; struct ieee80211_ie_obss_scan *obss_scan; #if IEEE80211_BEACON_NOISY IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N, "%s: AP: updating HT Info IE (ANA) for %s\n", __func__, ether_sprintf(ni->ni_macaddr)); if (bo->bo_htinfo[0] != IEEE80211_ELEMID_HTINFO_ANA) { IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N, "%s: AP: HT Info IE (ANA) beacon offset askew %s " "expected 0x%02x, found 0x%02x\n", __func__, ether_sprintf(ni->ni_macaddr), IEEE80211_ELEMID_HTINFO_ANA, bo->bo_htinfo[0] ); } #endif htinfo = &((struct ieee80211_ie_htinfo *)bo->bo_htinfo)->hi_ie; if (bo->bo_htinfo) ieee80211_update_htinfo_cmn(htinfo, ni); if (bo->bo_htcap) ieee80211_add_htcap(bo->bo_htcap, ni, IEEE80211_FC0_SUBTYPE_BEACON); if (!(ic->ic_flags & IEEE80211_F_COEXT_DISABLE)) { obss_scan = (struct ieee80211_ie_obss_scan *)bo->bo_obss_scan; /*Beginning:Modified by zhaoyang1 for APVXI-30 2013-03-04*/ if (obss_scan) ieee80211_update_obss_scan(obss_scan, ni); /*Ending:Modified by zhaoyang1 for APVXI-30 2013-03-04*/ } if (IEEE80211_IS_HTVIE_ENABLED(ic)) { #if IEEE80211_BEACON_NOISY IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N, "%s: AP: updating HT Info IE (Vendor Specific) for %s\n", __func__, ether_sprintf(ni->ni_macaddr)); if (bo->bo_htinfo_vendor_specific[5] != IEEE80211_ELEMID_HTINFO) { IEEE80211_DPRINTF(vap, IEEE80211_MSG_11N, "%s: AP: HT Info IE (Vendor Specific) beacon offset askew %s ", "expected 0x%02x, found 0x%02x\n", __func__, ether_sprintf(ni->ni_macaddr), IEEE80211_ELEMID_HTINFO_ANA, bo->bo_htinfo_vendor_specific[5] ); } #endif htinfo = &((struct vendor_ie_htinfo *)bo->bo_htinfo_vendor_specific)->hi_ie; ieee80211_update_htinfo_cmn(htinfo, ni); } } if (vap->iv_opmode == IEEE80211_M_HOSTAP || vap->iv_opmode == IEEE80211_M_IBSS) { struct ieee80211_tim_ie *tie = (struct ieee80211_tim_ie *) bo->bo_tim; if (IEEE80211_VAP_IS_TIMUPDATE_ENABLED(vap) && vap->iv_opmode == IEEE80211_M_HOSTAP) { u_int timlen, timoff, i; /* * ATIM/DTIM needs updating. If it fits in the * current space allocated then just copy in the * new bits. Otherwise we need to move any trailing * data to make room. Note that we know there is * contiguous space because ieee80211_beacon_allocate * insures there is space in the wbuf to write a * maximal-size virtual bitmap (based on ic_max_aid). */ /* * Calculate the bitmap size and offset, copy any * trailer out of the way, and then copy in the * new bitmap and update the information element. * Note that the tim bitmap must contain at least * one byte and any offset must be even. */ if (vap->iv_ps_pending != 0) { timoff = 128; /* impossibly large */ for (i = 0; i < vap->iv_tim_len; i++) { if (vap->iv_tim_bitmap[i]) { timoff = i &~ 1; break; } } KASSERT(timoff != 128, ("tim bitmap empty!")); for (i = vap->iv_tim_len-1; i >= timoff; i--) if (vap->iv_tim_bitmap[i]) break; timlen = 1 + (i - timoff); } else { timoff = 0; timlen = 1; } tie->tim_bitctl = timoff; if (timlen != bo->bo_tim_len) { int trailer_adjust = (tie->tim_bitmap+timlen) - bo->bo_tim_trailer; /* copy up/down trailer */ OS_MEMCPY(tie->tim_bitmap+timlen, bo->bo_tim_trailer, bo->bo_tim_trailerlen); bo->bo_tim_trailer = tie->tim_bitmap+timlen; bo->bo_chanswitch += trailer_adjust; bo->bo_wme += trailer_adjust; bo->bo_erp += trailer_adjust; bo->bo_ath_caps += trailer_adjust; bo->bo_appie_buf += trailer_adjust; bo->bo_xr += trailer_adjust; /*zhaoyang1 transplant from 717*/ /*Begin:Added by duanmingzhe for adjust pointer*/ bo->bo_htcap +=trailer_adjust; bo->bo_obss_scan +=trailer_adjust; bo->bo_extcap +=trailer_adjust; /*End:Added by duanmingzhe for adjust pointer*/ /*zhaoyang1 transplant end*/ #ifdef E_CSA bo->bo_extchanswitch += trailer_adjust; #endif /* E_CSA */ #if ATH_SUPPORT_IBSS_DFS bo->bo_ibssdfs += trailer_adjust; #endif /* ATH_SUPPORT_IBSS_DFS */ bo->bo_htinfo += trailer_adjust; bo->bo_htinfo_pre_ana += trailer_adjust; bo->bo_htinfo_vendor_specific += trailer_adjust; if (timlen > bo->bo_tim_len) wbuf_append(wbuf, timlen - bo->bo_tim_len); else wbuf_trim(wbuf, bo->bo_tim_len - timlen); bo->bo_tim_len = timlen; /* update information element */ tie->tim_len = 3 + timlen; len_changed = 1; } OS_MEMCPY(tie->tim_bitmap, vap->iv_tim_bitmap + timoff, bo->bo_tim_len); IEEE80211_VAP_TIMUPDATE_DISABLE(vap); IEEE80211_NOTE(vap, IEEE80211_MSG_POWER, ni, "%s: TIM updated, pending %u, off %u, len %u\n", __func__, vap->iv_ps_pending, timoff, timlen); } if (vap->iv_opmode == IEEE80211_M_HOSTAP) { /* count down DTIM period */ if (tie->tim_count == 0) tie->tim_count = tie->tim_period - 1; else tie->tim_count--; /* update state for buffered multicast frames on DTIM */ if (mcast && (tie->tim_count == 0 || tie->tim_period == 1)) tie->tim_bitctl |= 1; else tie->tim_bitctl &= ~1; } if (ieee80211_ic_doth_is_set(ic) && (ic->ic_flags & IEEE80211_F_CHANSWITCH) #ifdef MAGPIE_HIF_GMAC && (!vap->iv_chanswitch)) { #else ) { #endif if (!vap->iv_chanchange_count) { u_int8_t * tempbuf; vap->iv_flags |= IEEE80211_F_CHANSWITCH; /* copy out trailer to open up a slot */ tempbuf = OS_MALLOC(vap->iv_ic->ic_osdev, bo->bo_chanswitch_trailerlen , GFP_KERNEL); OS_MEMCPY(tempbuf,bo->bo_chanswitch, bo->bo_chanswitch_trailerlen); OS_MEMCPY(bo->bo_chanswitch + IEEE80211_CHANSWITCHANN_BYTES, tempbuf, bo->bo_chanswitch_trailerlen); OS_FREE(tempbuf); /* add ie in opened slot */ bo->bo_chanswitch[0] = IEEE80211_ELEMID_CHANSWITCHANN; bo->bo_chanswitch[1] = 3; /* fixed length */ bo->bo_chanswitch[2] = 1; /* stas get off for now */ bo->bo_chanswitch[3] = ic->ic_chanchange_chan; bo->bo_chanswitch[4] = ic->ic_chanchange_tbtt; /* update the trailer lens */ bo->bo_chanswitch_trailerlen += IEEE80211_CHANSWITCHANN_BYTES; #if ATH_SUPPORT_IBSS_DFS bo->bo_ibssdfs += IEEE80211_CHANSWITCHANN_BYTES; #endif /* ATH_SUPPORT_IBSS_DFS */ bo->bo_tim_trailerlen += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_wme += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_erp += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_ath_caps += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_appie_buf += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_xr += IEEE80211_CHANSWITCHANN_BYTES; #ifdef E_CSA bo->bo_extchanswitch += IEEE80211_CHANSWITCHANN_BYTES; #endif /* E_CSA */ bo->bo_htinfo += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_htinfo_pre_ana += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_htinfo_vendor_specific += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_htcap += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_extcap += IEEE80211_CHANSWITCHANN_BYTES; bo->bo_obss_scan += IEEE80211_CHANSWITCHANN_BYTES; /* indicate new beacon length so other layers may manage memory */ wbuf_append(wbuf, IEEE80211_CHANSWITCHANN_BYTES); len_changed = 1; } else { #ifdef MAGPIE_HIF_GMAC if(vap->iv_chanchange_count != ic->ic_chanchange_tbtt) bo->bo_chanswitch[4]--; #else bo->bo_chanswitch[4]--; #endif } #ifdef MAGPIE_HIF_GMAC if(vap->iv_chanchange_count != ic->ic_chanchange_tbtt) { vap->iv_chanchange_count++; ic->ic_chanchange_cnt--; } if(vap->iv_chanchange_count == ic->ic_chanchange_tbtt) vap->iv_chanswitch = 1; #else vap->iv_chanchange_count++; #endif IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: CHANSWITCH IE, change in %d \n", __func__, bo->bo_chanswitch[4]); } } #if ATH_SUPPORT_IBSS_DFS if (vap->iv_opmode == IEEE80211_M_IBSS && (ic->ic_curchan->ic_flagext & IEEE80211_CHAN_DFS)) { /*reset action frames counts for measrep and csa action */ vap->iv_measrep_action_count_per_tbtt = 0; vap->iv_csa_action_count_per_tbtt = 0; if(vap->iv_ibssdfs_state == IEEE80211_IBSSDFS_OWNER) { vap->iv_ibssdfs_ie_data.rec_interval = vap->iv_ibss_dfs_enter_recovery_threshold_in_tbtt; } ibss_ie =(struct ieee80211_ibssdfs_ie *) bo->bo_ibssdfs; if(ibss_ie) { if (OS_MEMCMP(bo->bo_ibssdfs, &vap->iv_ibssdfs_ie_data, ibss_ie->len + sizeof(struct ieee80211_ie_header))) { int trailer_adjust = vap->iv_ibssdfs_ie_data.len - ibss_ie->len; /* copy up/down trailer */ if(trailer_adjust > 0) { u_int8_t * tempbuf; tempbuf = OS_MALLOC(vap->iv_ic->ic_osdev, bo->bo_ibssdfs_trailerlen , GFP_KERNEL); if (tempbuf == NULL) { IEEE80211_DPRINTF(vap, IEEE80211_MSG_ANY, "%s: Unable to alloc ibssdfs copy buf. Size=%d\n", __func__, bo->bo_ibssdfs_trailerlen); return -1; } OS_MEMCPY(tempbuf,bo->bo_ibssdfs + sizeof(struct ieee80211_ie_header) + ibss_ie->len, bo->bo_ibssdfs_trailerlen); OS_MEMCPY(bo->bo_ibssdfs + sizeof(struct ieee80211_ie_header) + vap->iv_ibssdfs_ie_data.len, tempbuf, bo->bo_ibssdfs_trailerlen); OS_FREE(tempbuf); } else { OS_MEMCPY(bo->bo_ibssdfs + sizeof(struct ieee80211_ie_header) + vap->iv_ibssdfs_ie_data.len , bo->bo_ibssdfs + sizeof(struct ieee80211_ie_header) + ibss_ie->len, bo->bo_ibssdfs_trailerlen); } bo->bo_tim_trailerlen += trailer_adjust; bo->bo_chanswitch_trailerlen += trailer_adjust; bo->bo_wme += trailer_adjust; bo->bo_erp += trailer_adjust; bo->bo_ath_caps += trailer_adjust; bo->bo_appie_buf += trailer_adjust; bo->bo_xr += trailer_adjust; #ifdef E_CSA bo->bo_extchanswitch += trailer_adjust; #endif /* E_CSA */ bo->bo_htinfo += trailer_adjust; bo->bo_htinfo_pre_ana += trailer_adjust; bo->bo_htinfo_vendor_specific += trailer_adjust; bo->bo_htcap += trailer_adjust; bo->bo_extcap += trailer_adjust; bo->bo_obss_scan += trailer_adjust; if (trailer_adjust > 0) { wbuf_append(wbuf, trailer_adjust); } else { wbuf_trim(wbuf, -trailer_adjust); } OS_MEMCPY(bo->bo_ibssdfs, &vap->iv_ibssdfs_ie_data, sizeof(struct ieee80211_ie_header) + vap->iv_ibssdfs_ie_data.len); len_changed = 1; } } if (vap->iv_ibssdfs_state == IEEE80211_IBSSDFS_JOINER || vap->iv_ibssdfs_state == IEEE80211_IBSSDFS_OWNER) { vap->iv_ibssdfs_recovery_count = vap->iv_ibssdfs_ie_data.rec_interval; ieee80211_ibss_beacon_update_stop(ic); } else if (vap->iv_ibssdfs_state == IEEE80211_IBSSDFS_WAIT_RECOVERY) { vap->iv_ibssdfs_recovery_count --; if(vap->iv_ibssdfs_recovery_count == 0) { IEEE80211_ADDR_COPY(vap->iv_ibssdfs_ie_data.owner, vap->iv_myaddr); vap->iv_ibssdfs_state = IEEE80211_IBSSDFS_OWNER; vap->iv_ibssdfs_recovery_count = vap->iv_ibssdfs_ie_data.rec_interval; ieee80211_dfs_action(vap, NULL); } } } #endif /* ATH_SUPPORT_IBSS_DFS */ if (vap->iv_opmode == IEEE80211_M_HOSTAP || vap->iv_opmode == IEEE80211_M_BTAMP) { /* No IBSS Support */ if (ieee80211_vap_erpupdate_is_set(vap) && bo->bo_erp) { (void) ieee80211_add_erp(bo->bo_erp, ic); ieee80211_vap_erpupdate_clear(vap); } } #ifdef E_CSA if (ieee80211_ic_doth_is_set(ic) && (ic->ic_flags & IEEE80211_F_CHANSWITCH)) { if (!vap->iv_chanchange_count) { /* copy out trailer to open up a slot */ OS_MEMCPY(bo->bo_extchanswitch + IEEE80211_EXTCHANSWITCHANN_BYTES, bo->bo_extchanswitch, bo->bo_extchanswitch_trailerlen); /* add ie in opened slot */ bo->bo_extchanswitch[0] = IEEE80211_ELEMID_EXTCHANSWITCHANN; bo->bo_extchanswitch[1] = 4; /* fixed length */ bo->bo_extchanswitch[2] = 1; /* stations get off for now */ /* * XXX: bo_extchanswitch[3] should be regulatory class instead * of country code. Currently there is no functionality to retrieve * the regulatory classe from HAL. Need to correct this later when * we fix the IEEE80211_ELEMID_EXTCHANSWITCHANN to ANA defined * value. */ bo->bo_extchanswitch[3] = ic->ic_country_code; bo->bo_extchanswitch[4] = ic->ic_chanchange_chan; bo->bo_extchanswitch[5] = ic->ic_chanchange_tbtt; /* update the trailer lens */ bo->bo_extchanswitch_trailerlen += IEEE80211_EXTCHANSWITCHANN_BYTES; bo->bo_ath_caps += IEEE80211_EXTCHANSWITCHANN_BYTES; bo->bo_appie_buf += IEEE80211_EXTCHANSWITCHANN_BYTES; #if ATH_SUPPORT_IBSS_DFS bo->bo_ibssdfs_trailerlen += IEEE80211_EXTCHANSWITCHANN_BYTES; #endif /* indicate new beacon length so other layers may manage memory */ wbuf_append(skb, IEEE80211_EXTCHANSWITCHANN_BYTES); len_changed = 1; } else { bo->bo_extchanswitch[5]--; } IEEE80211_DPRINTF(vap, IEEE80211_MSG_DOTH, "%s: EXT CHANSWITCH IE, change in %d\n", __func__, bo->bo_extchanswitch[5]); } #endif /* E_CSA */ /* add APP_IE buffer if app updated it */ #ifdef ATH_BEACON_DEFERRED_PROC IEEE80211_VAP_LOCK(vap); #endif if (IEEE80211_VAP_IS_APPIE_UPDATE_ENABLED(vap)) { /* adjust the buffer size if the size is changed */ u_int8_t *frm; u_int32_t newlen = vap->iv_app_ie[IEEE80211_FRAME_TYPE_BEACON].length; /* Also add the length from the new App IE module */ newlen += vap->iv_app_ie_list[IEEE80211_FRAME_TYPE_BEACON].total_ie_len; if (newlen != bo->bo_appie_buf_len) { int diff_len; diff_len = newlen - bo->bo_appie_buf_len; bo->bo_appie_buf_len = (u_int16_t) newlen; /* update the trailer lens */ bo->bo_chanswitch_trailerlen += diff_len; bo->bo_tim_trailerlen += diff_len; if (diff_len > 0) wbuf_append(wbuf, diff_len); else wbuf_trim(wbuf, -(diff_len)); len_changed = 1; } if (vap->iv_app_ie[IEEE80211_FRAME_TYPE_BEACON].length) { OS_MEMCPY(bo->bo_appie_buf, vap->iv_app_ie[IEEE80211_FRAME_TYPE_BEACON].ie, vap->iv_app_ie[IEEE80211_FRAME_TYPE_BEACON].length); } /* Add the Application IE's */ if (vap->iv_app_ie_list[IEEE80211_FRAME_TYPE_BEACON].total_ie_len) { frm = bo->bo_appie_buf + vap->iv_app_ie[IEEE80211_FRAME_TYPE_BEACON].length; frm = ieee80211_mlme_app_ie_append(vap, IEEE80211_FRAME_TYPE_BEACON, frm); } IEEE80211_VAP_APPIE_UPDATE_DISABLE(vap); update_beacon_copy = true; } #ifdef ATH_BEACON_DEFERRED_PROC IEEE80211_VAP_UNLOCK(vap); #endif if (update_beacon_copy && ieee80211_vap_copy_beacon_is_set(vap)) { store_beacon_frame(vap, (u_int8_t *)wbuf_header(wbuf), wbuf_get_pktlen(wbuf)); } return len_changed; } int wlan_copy_ap_beacon_frame(wlan_if_t vaphandle, u_int32_t in_buf_size, u_int32_t *required_buf_size, void *buffer) { struct ieee80211vap *vap = vaphandle; void *beacon_buf; *required_buf_size = 0; /* Make sure that this VAP is SoftAP */ if (vap->iv_opmode != IEEE80211_M_HOSTAP) { return EPERM ; } if (!vap->iv_beacon_copy_buf) { /* Error: no beacon buffer */ return EPERM ; } if (in_buf_size < vap->iv_beacon_copy_len) { /* Input buffer too small */ *required_buf_size = vap->iv_beacon_copy_len; return ENOMEM ; } *required_buf_size = vap->iv_beacon_copy_len; beacon_buf = (void *)vap->iv_beacon_copy_buf; OS_MEMCPY(buffer, beacon_buf, vap->iv_beacon_copy_len); return EOK; }